KR101674469B1 - WARNING TEMPERATURE at POWER SUPPLY and IMPROVED DETECTION of ON-OFF for LED LIGHTING DEVICE - Google Patents

WARNING TEMPERATURE at POWER SUPPLY and IMPROVED DETECTION of ON-OFF for LED LIGHTING DEVICE Download PDF

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KR101674469B1
KR101674469B1 KR1020160017798A KR20160017798A KR101674469B1 KR 101674469 B1 KR101674469 B1 KR 101674469B1 KR 1020160017798 A KR1020160017798 A KR 1020160017798A KR 20160017798 A KR20160017798 A KR 20160017798A KR 101674469 B1 KR101674469 B1 KR 101674469B1
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South Korea
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user
power
power supply
temperature
supply unit
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KR1020160017798A
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Korean (ko)
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성종제
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엘이디라이팅 주식회사
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    • H05B37/0227—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • H05B37/04—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00—Point-like light sources

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The present invention relates to an LED illumination lighting device, wherein a maximum allowable temperature function and an on-off recognition function of a power supply unit are improved. The LED illumination lighting device includes: a control unit (200) receiving a temperature and a dimming set condition signal; a power supply unit (100) supplying power to an LED illumination module (700); an operation power supply unit (400) supplying operation power of the control unit or supplying power to the control unit (200); a power on-off detection unit (500) detecting a size of an output voltage of the power supply unit (100) when a power switch (SW) is on, and detecting an output voltage of a charging device forming the power supply unit (100) when the power switch is off; and an internal temperature detection unit (300) of the power supply unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED lighting device having an improved maximum allowable temperature warning function and an on-

The present invention is based on the premise that the temperature of a power supply unit that supplies power to an LED (Light Emitting Diode, hereinafter referred to as LED) is set to a maximum allowable range in which various electronic components constituting the power supply unit can function normally And limits the output of the power supplied to the LED to a predetermined range or less when the temperature of the power supply unit is equal to or higher than the maximum allowable temperature for use,

 In addition, the present invention relates to an LED light fixture having improved on-off recognition capability for shortening and accurately detecting the on /

In recent years, a high-brightness LED (light-emitting diode) element is also used as a light source.

Because the LED element emits light only when the power source is applied in the forward direction, a power supply device that converts AC power to DC power and outputs the power is required for use as a light source of a lighting apparatus. In addition, a power supply device having a dimming function is used in accordance with the demand of lighting, and various types of power supply devices for keeping the output power constant according to the temperature characteristics of the LED device are developed by the present inventor, 10-1269654 (hereinafter referred to as Patent Document 1).

In addition, according to the demand of the lighting, it detects the ON / OFF recovery time of the power switch among the power supply devices with the dimming function for dimming, and outputs the controlled power (voltage or current) An LED illuminating lamp equipped with an on-off recognition function having a dimming function is known from Korean Patent Registration No. 10-1318270 (hereinafter referred to as Patent Document 2) developed and registered by the present inventor.

Korean Registered Patent No. 10-1269654 (Registered on May 31, 2014) Korean Registered Patent No. 10-1318270 (Registered October 10, 2013) Korean Registered Patent No. 10-1337871 (Registered on November 28, 2013)

In the technology of detecting the overheating of the circuit board disclosed in the above-mentioned Patent Document 1 and limiting the output of the power converter to a certain range or less, if the temperature of the circuit board is higher than the set temperature, the converter output is reduced by a predetermined range or more, Is reduced.

However, when the temperature of the substrate is increased to a predetermined temperature or higher and the output of the converter is reduced and output, the user of the corresponding lighting apparatus is allowed to change the ambient lighting, adapt to the lighting change of the person, In the case of luminaires which are automatically dimmed by surrounding lighting, etc., it is impossible to recognize that the substrate is in an abnormal heating state due to a mistake in the dimming state, etc., so that it can be repaired due to burnout or fire This is a problem.

(A) judging whether or not the output brightness changing controller transmits a power off signal within a predetermined time period when a power on signal for lighting the LED is transmitted; b) if the power off signal is delivered within a predetermined time as a result of the determination in step (a), the output brightness change controller recognizes the power off signal transmitted as an 'output brightness change signal' (c) checking the currently set output brightness according to the output brightness change signal recognized by the output brightness changing controller in step (b); (d) A change control signal from the output brightness to the next output brightness, and transmitting the generated change control signal to the LED control unit, and (e) the LED control unit transmits the change control signal bar Controlling the output of the LED by changing the currently set output brightness to the next output brightness when the next power on signal is transmitted, The LED lighting control method capable of changing the output brightness step by step

When a user turns off the power switch within a predetermined time with the power switch turned on, the microprocessor (microprocessor, hereinafter referred to as " microcomputer ") recognizes the power on / (Hereinafter referred to as a capacitor that is charged when the power is turned on and discharged when the power is turned off and supplies the microcomputer with operating power for a certain period of time, hereinafter, referred to as a capacitor) And if it is less than the predetermined size, it is recognized as OFF.

A control unit of a power supply unit that rectifies a commercial power source, which is an alternating current of 220 V, and PWM-controls the power to provide dimmed power or electric power to the LED devices, although it may be different depending on the circuit design, capacity, The operation power of the microcomputer is about 5V DC and the operation power of the microcomputer is used as the operation power of the microcomputer by stepping down a part of the power in the power supply unit and the capacitor for supplying the operation power of the microcomputer for a predetermined time The power is supplied to the microcomputer for 5 seconds to 6 seconds in consideration of the consumed power of the microcomputer when the power is turned off.

In such a power supply device, the microcomputer that monitors the magnitude of the discharge voltage of the condenser continues to monitor the magnitude of the discharge voltage of the condenser even after the power switch is turned off when the voltage is below the voltage level set by the user . That is, the routine for checking the off state is repeated, although it is substantially in the off state. If the power switch is turned on by the user at the moment when the off state is maintained and the voltage is less than the set voltage during the routine, it is impossible to recognize the power switch. The routine for determining whether the voltage is less than the first predetermined voltage is repeated and the routine for returning to detect the voltage change input from the capacitor is repeated. Which means the time required for the cycle) is prolonged.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a power supply apparatus and a power supply apparatus, If the output power is reduced to less than the allowable temperature during the user-set time, the output of the power supply is recovered to the output before the decrease output, and within the time limit specified by the user, The control unit controls the output of the power supply unit so as to recognize that the user is in an abnormal state,

When the microcomputer recognizes the on / off operation of the power switch, if the power switch (which is a switch for shutting off the commercial power supply to the power supply unit) is turned off within a predetermined time after the user turns on the power, The microcomputer, which is a control unit, maintains the operating state by using the discharge power of the capacitor charged by a part of the power of the capacitor. The microcomputer which receives the output of the power on / off sensing unit for sensing the discharge voltage of the capacitor, The microcomputer recognizes that the power switch is in an off state and waits for a standby state in which the microcomputer does not repeat the routine for monitoring whether the output voltage of the power on / Until the magnitude of the output voltage of the capacitor sensing unit exceeds the voltage magnitude set by the user It is entering the reset mode in which a group state.

When a voltage higher than a predetermined voltage level set by the user is input from the power on / off sensor unit in the state of entering the reset mode, the microcomputer recognizes that the microcomputer is immediately activated and turned on, Completion of one off-on cycle recognizing that the photodiode has turned off for dimming) or recognizes as a valid signal that the user has control intention.

The power on / off detection unit is monitored repeatedly until the user is below the set voltage while repeating the routine. When the voltage is below the set voltage, the power is switched off and the reset mode is entered again. And an on-off recognition function capable of clearly grasping the dimming intention of the user even when the user operates the power switch in a hurry due to shortening of the off-on recognition time.

In order to achieve the above-described object, a temperature input from the temperature sensing unit 300 mounted in the internal space of the power supply unit 100 according to the present invention and a dimming setting condition signal input from the power on / A power supply unit 100 for supplying electric power to the LED light emitting module 700 composed of one or more LED elements according to a dimming command signal signal outputted from the controller 200,

When a power source (typically, an AC commercial power source) that receives power from the power supply unit 100 and supplies operating power to the control unit and supplies power to the power supply unit 100 is shut off, And the like can be changed according to the circuit constituting the power supply part 100 at a time determined according to the capacity of the capacitor. In the following description, the term " An operation power supply unit 400 for supplying power to the control unit 200,

When the power switch SW for supplying power to the power supply unit 100 is turned on, the output voltage of the power supply unit 100 is sensed. When the power supply unit 100 is off, the output voltage of the charging unit, A power on / off detection unit 500 for sensing a decrease (also referred to as sensing)

An internal temperature sensing unit 300 of a power supply unit for monitoring heat generated by heat generation of circuit elements constituting the power supply unit 100,

A dimming command signal transfer unit 600 composed of a transistor and a resistor is configured to accurately transmit the dim command signal output from the controller 200 to the power supply unit 100. [

 Also, the power supply unit 100 includes a power supply noise removing unit 110 for filtering unnecessary noise included in a commercial power supply, a power rectifying unit 120 for converting a noise-removed commercial power supply into a DC power supply, a rectified DC power supply A non-insulated converter (not shown) for controlling the power factor and the output of the LED light emitting module 700 and controlling the power of the controller 200 according to a dimming command signal of the controller 200, (130) are electrically connected to each other,

The control unit 200 sets a maximum allowable temperature in consideration of a component characteristic of the power supply unit 100 by the user, and when the temperature inside the power supply unit 100 is equal to or higher than the maximum use temperature, The output of the power supply unit 100 is restored to the output before the decrease output. If the output of the power supply unit 100 is not recovered below the maximum use temperature within the self-specified time, And a microprocessor (hereinafter referred to as a microcomputer) having a function of controlling the output of the power supply unit 100 so as to be flickered with reduced power,

In addition, when the user recognizes the ON / OFF operation of the power switch SW, the controller 200 controls the power supply switch 100 to supply power to the power supply unit 100 within a predetermined time after the user turns on the power, Off detector 400 that senses the discharge voltage of the condenser while maintaining the operation state by the discharge of the capacitor charged by a part of the power supplied to the LED in the power supply unit 100, The control unit 200 recognizes that the power switch is in an off state, and when the sensing result is less than the set voltage, the controller 200 recognizes that the power switch is off, When the magnitude of the output voltage of the power on / off detection unit 400 is equal to or larger than the voltage magnitude set by the user in a waiting state in which the routine for monitoring whether the voltage is reduced is not repeated And then enters a reset mode in which a standby state is reached.

If a voltage higher than a predetermined voltage level set by the user is input from the power on / off detection unit 400 in the state of entering the reset mode, the controller 200 immediately recognizes that it is activated and turned on, (I.e., completion of one off-on cycle consisting of one off-on after the user recognizes that the user turned off the light for dimming) or a function of recognizing the user as a valid signal that the user has control intention It is a microcomputer equipped.

That is, when the user sets the maximum allowable temperature in consideration of the characteristics of the components of the power supply unit, and when the temperature in the power supply unit is equal to or higher than the maximum use temperature, the output is reduced within a predetermined range, If the output power is reduced below the allowable temperature for the set time, the output of the power supply is recovered to the output before the decrease output. If the output is not recovered below the maximum use temperature within the specified time, And prevents the power supply from being burned out or overheating due to overheating of the power supply unit and repeats the routine of decreasing the power on / off detection unit until the user is below the set voltage. When the power supply is below the set voltage, Off state, and enters the reset mode again, the off-on cycle Doemeuro improve accuracy and reduce the time for turning on and off recognition due recognition to the user, even if you operate the power switch to clarify the degree of dimming users provide on-off recognition function is improved LED lighting mechanism in a hurry.

As described above, according to the LED light fixture of the present invention, which has improved maximum allowable temperature warning function and on-off recognition function of the power supply unit,

If the temperature inside the power supply unit exceeds the maximum operating temperature, the output of the current dimmed output power is reduced within a certain range. If the temperature is reduced below the allowable temperature during the user-set time, the output of the power supply unit is decreased. And if the temperature is not recovered below the maximum use temperature within a specified period of use, the output of the power supply unit is controlled so as to be flickered with reduced power so as to prevent burnout or fire due to overheating of the power supply unit, Can be prevented.

When the user's voltage is below the set voltage, the user recognizes the power switch off and enters the reset mode again. Therefore, the on-off cycle recognition And the on-off recognition time can be shortened. Therefore, even when the user suddenly operates the power switch, the on-off recognition which can clearly grasp the dimming intent of the user can be precisely detected.

1 is a block diagram of an LED lighting fixture with improved maximum allowable temperature warning function and on-off recognition function of the power supply unit according to the present invention;
FIG. 2 is a circuit diagram of an LED lighting apparatus with improved maximum allowable temperature warning function and on-off recognition function of the power supply unit according to the present invention.
FIG. 3 is a flowchart illustrating a control operation of the LED lighting apparatus with improved maximum allowable temperature warning function and on-off recognition function of the power supply unit according to the present invention.
FIG. 4 is a flowchart of power on / off detection in the control unit of the LED lighting apparatus with improved maximum allowable temperature warning function and on-off recognition function of the power supply unit according to the present invention.
FIGS. 5 to 12 An example of a light fixture to which an LED lighting fixture having improved maximum allowable temperature warning function and on-off recognition function of the power supply unit according to the present invention can be applied

These and other objects and novel features of the present invention will become more apparent from the description of the present specification and the accompanying drawings.

Hereinafter, the configuration of the present invention will be described with reference to the drawings.

 FIG. 1 is a block diagram of an LED illuminating lamp apparatus with improved maximum allowable temperature warning function and on-off recognizing function of the power supply unit according to the present invention. FIG. 2 is a block diagram of the LED illuminating apparatus according to the present invention, The circuit diagram of the LED illuminating apparatus having the improved recognition function is merely an example of the detailed circuit of various types that can function in each block shown in FIG. 1, but the present invention is not limited thereto. That is, one of many circuits functioning as a block shown in FIG. 1, and the present invention is not limited thereto, and may be constituted of equivalent or equivalent parts having the same function as the detailed circuit shown in FIG.

FIG. 3 is a control flowchart of the LED lighting apparatus with improved maximum allowable temperature warning function and on-off recognition function of the power supply unit according to the present invention

FIG. 4 is a flowchart of power on / off detection in the control unit of the LED lighting apparatus with improved maximum allowable temperature warning function and on-off recognition function of the power supply unit according to the present invention.

As shown in FIGS. 1 and 2, the LED lighting fixture improved in the maximum allowable temperature warning function and the on-off recognition function of the power supply according to the present invention is an LED lighting fixture controlled by turning on / off a user's power switch,

 The control unit 200 receives the temperature input from the temperature sensing unit 300 installed in the inner space of the power supply unit 100 and the dimming setting condition signal input from the power on / A power supply unit 100 for supplying power to the LED light emitting module 700 composed of one or more LED elements according to a dimming command signal signal outputted from the power supply unit 100, And discharges the electric power charged in the charging device such as the capacitor constituting the electric power supply unit 100 when the electric power source for supplying electric power to the electric power supplying unit 100 is cut off (normally, the AC commercial electric power source) An operation power supply unit 400 for supplying power to the control unit 200 during a period of time determined according to the capacity of the power supply unit 100 that can be changed according to a circuit constituting the power supply unit 100, doing The power supply unit 100 senses the magnitude of the output voltage of the power supply unit 100 when the switch SW is turned on and the power supply unit 100 senses the output voltage of the charging unit such as a capacitor of the power supply unit 100 Off detection unit 500 and an internal temperature sensing unit 300 of a power supply unit for monitoring heat generated by the heat generated by the circuit elements constituting the power supply unit 100, A dimming command signal transmitting unit 600 composed of a transistor and a resistor is configured to accurately transmit the signal to the power supply unit 100.

 Also, the power supply unit 100 includes a power supply noise removing unit 110 for filtering unnecessary noise included in a commercial power supply, a power rectifying unit 120 for converting a noise-removed commercial power supply into a DC power supply, a rectified DC power supply (Pulse width modulation) control in accordance with a dimming command signal of the control unit 200 to supply the LED light to the LED light emitting module 700 and to control the power factor and the output and to supply operation power to the control unit 200, ) Converter 130 are electrically connected to each other,

In the present invention, for the PWM (Pulse Width Modulation) control, an LED drive driver IC such as DW 8522 (manufactured by Dongwon Anatek) commercially available in the field, which is an LED drive driver IC, 2, the detailed description of the operation of the converter 130 will be omitted. As shown in FIG. 2, the connection structure between the circuit components shown in FIG. A person skilled in the art can selectively utilize a known known converter of the same function. The operation principle of such a converter can be understood by those skilled in the art in view of the circuit diagram alone, so that detailed description thereof will be omitted. The driver of the present invention can select and apply the LED driving driver IC.

The control unit 200 sets a maximum allowable temperature in consideration of the characteristics of the components of the power supply unit 100 by the user and sets the output power that is currently dimmed and output to a predetermined value when the temperature inside the power supply unit 100 is equal to or higher than the maximum use temperature The output of the power supply unit 100 is restored to the output before the decrease of the output, and if the output of the power supply unit 100 is not recovered below the maximum use temperature within the self-specified time And a microprocessor (hereinafter referred to as a microcomputer) having a function of controlling the output of the power supply unit 100 so as to be flickered with reduced power,

The controller 200 recognizes the on / off operation of the power switch SW by turning on / off the power switch (the switch SW for shutting off the commercial power to the power supply unit 100) within a predetermined time after the user turns on the power, Off detector 400 that senses the discharge voltage of the capacitor while maintaining the operating state by discharging the capacitor charged by a part of the power supplied to the LED in the power supply unit 100 The controller 200 senses whether the voltage is less than the voltage set by the user, and if the voltage is less than the sensing result set voltage, the controller 200 recognizes that the power switch is off, Until the voltage of the output voltage of the power on / off detector 400 exceeds the voltage magnitude set by the user, The apparatus enters a reset mode in which the apparatus is in a standby state.

When a voltage exceeding a predetermined voltage level set by the user is input from the power on / off detection unit 400 in the state of entering the reset mode, the controller 200 immediately recognizes that it is activated and turned on, (I.e., completion of one off-on cycle in which the user recognizes that the user has turned off for dimming), or recognizes the user as a valid signal that the user has a control intention.

The controller 200 utilizes a microcomputer (Atmega8, which is commercially available in the circuit, ATMEL, which is a product name for explaining the present invention, and the present invention is not limited thereto) (Software) that implements a function of monitoring the output of the power on / off detection unit 400 and grasping the on / off state of the power switch is created and inputted through the control program input unit 1000 of the control unit 200 And the creation of the program can be performed by a person skilled in the art using a computer program language known in the art utilizing the flowcharts of FIGS. 3 and 4 and the description thereof to be described later.

3 and 4, which illustrate the operation of the LED lighting apparatus with improved maximum allowable temperature warning function and on-off recognition function of the power supply unit according to the present invention.

FIG. 3 is a control flowchart of the LED lighting apparatus with improved maximum allowable temperature warning function and on-off recognition function of the power supply unit according to the present invention

FIG. 4 is a flowchart of power on / off detection in the control unit of the LED lighting apparatus with improved maximum allowable temperature warning function and on-off recognition function of the power supply unit according to the present invention

When the user turns on the power switch SW in the LED lighting fixture with improved maximum use temperature warning function and on-off recognition function of the power supply unit of the present invention configured as shown in Figs. 1 and 2, the power supply unit 100, The LED lighting module 700 is turned on by operating the LED lighting module 300, the power on / off sensing part 500, the control part 200, the LED lighting module 700 and the operation power supply part 400. When the LED light emitting module 700 is turned on after the power switch SW is turned on,

The power switch SW is turned on, the power supply unit 100 is operated, and the power on / off detection unit is operated

The control unit 200 determines whether or not the output of the power on-off sensing unit is greater than or equal to a preset value (s100). In the LED lighting apparatus that recognizes and dims the on / In order to recognize the on / off state of the power switch, it is general to install a voltage sensor on the input line to monitor the on / off state of the power switch depending on the presence or absence of the detected voltage current. In this case, a current sensor (usually referred to as a CT)

And a voltage monitoring apparatus (usually referred to as PT) for detecting a voltage between both lines. In such a case, CT or PT for on / off detection is separately provided, which makes it difficult to increase the cost and small size and weight of the power supply device. In addition, since the discharge of the capacitor, which is essentially used in the power supply device, It is not recognized when it is turned on and off, and it is necessary to wait until the discharge is completed to recognize the off state. Therefore, it takes time to determine whether the power switch is turned on or off.

On the contrary, the present invention disclosed in Figs. 1 and 2

When the power switch is turned on, the output of the power supply unit 100 for supplying the operating power to the operating power supply unit 400 is about 28 V (this is referred to as a normal output. When the power switch is turned off, a charged voltage such as a capacitor constituting the power supply unit 100 for supplying operating power to the operating power supply unit 400 is supplied to the operating power supply unit, Is about 28V which is a normal voltage and decreases with time. The discharge of the capacitor or the like decreases with time from about 28V to 5V or less and eventually reaches the full discharge state.

Since the operating voltage of the controller 200 is about 5 V, the power supply unit 400 receives the power supplied from the power supply unit 100 and supplies the operation power to the controller 200. In the operation power supply unit 400, (Which is also a voltage value that can be selectively changed according to the characteristics of the control unit).

 Also, the voltage charged after the power switch SW is turned off is adjusted to 5V, which is necessary for the operation of the control unit, in the operation power supply unit 400 and supplied.

In the present invention, a series circuit is constituted by two resistance elements, one end is connected to the ground, that is, the chassis ground, and the other end is connected to the power supply part 400, Off detector 500 connected to the output terminal of the controller 100 and connected between the resistor elements connected in series and a terminal for sensing the voltage magnitude of the controller 200. [

The present invention in which the power on / off detection unit 500 is provided between the output of the power supply unit 100 and the control unit 200 is provided with a power supply unit for supplying power to the control unit 200 100 is supplied to the control unit 200 through the operation power supply unit 400 to operate the control unit 200,

In addition, the power on / off detection unit 500 recognizes that the power supply unit 100 operates normally and the power switch is turned on.

 When the user turns off the power switch SW due to necessity of dimming

The voltage charged in the capacitor constituting the power supply unit 100 is supplied to the control unit 200 through the operation power supply unit 400 so that the control unit 200 operates and the voltage charged in the capacitor gradually decreases.

The controller 200 continuously monitors the degree of voltage reduction input through the power on / off detector 500 and determines whether the voltage of the power supply 100 is 18V (60% of the normal output for supplying power to the controller 200) The control unit 200 recognizes that the power switch is turned off, and when the control unit 200 determines that the power switch is turned off, 200 maintains an initial state, i.e., a standby state, of a power switch-off determination program stored by a user in a pre-

(The present invention is not limited to this, but it is within 2 seconds in the present invention, but it can be changed according to the circuit design conditions of the switch and the like. When a power switch is turned on by a user and a normal output for power supply of the controller 200 is inputted by the power supply unit 100, the power switch is turned off by a user operation that the user turns off the power switch, And the control signal for controlling the power supply unit 100 according to the dimming condition for each number of stored power switch on and off is stored in advance as a power control signal To the supply unit 100.

 This is only one example for facilitating the description of the present invention, and the discharge pattern or voltage value shown can be changed. For the sake of convenience of explanation in the present invention, the presented time, voltage, etc. are set by the user or the developer, and this can be changed by the capacity of the illumination lamp apparatus, the use condition and the like.

The output voltage of the power on / off detection unit 500 is supplied from the power supply unit. The output voltage of the power on / off detection unit 500 is sensed and supplied to the control unit 200, 1 user set time ") or not (S 110)

In the present invention, about 5 seconds is suitable but not limited thereto.

If a state equal to or higher than the set voltage value is maintained for the first user set time

The control unit 200 controls the temperature sensing unit 300 so that the input temperature value (substantially the voltage value obtained by converting the resistance change to the voltage of the PCT element or the NCT element) (S120)

When the temperature value input from the temperature sensing unit 300 is less than the maximum allowable temperature, the power supply unit 100 is controlled under the condition immediately before the new dimming condition is input, that is, the "initial lighting condition ". (s140)

Here, the initial lighting condition means that when the user turns off the power while the lighting condition is maintained after the dimming condition is reset or changed, the controller 200 stores the dimming condition that has been reset or changed, And it lights up in the initial lighting condition at the time of lighting, and when a new setting or condition condition is inputted after lighting, it is updated and stored as the initial lighting condition.

When the temperature detection unit 300 is at or above the maximum allowable temperature to be used

(Hereinafter, referred to as "first reduction output ratio ", 20% of which is appropriate, although the output power is controlled by the initial lighting condition and is reduced by a predetermined ratio at a constant rated output set by the user in the output from the power supply unit 100 (Which can be changed by the user as necessary), and controls the power supply unit 100 to be output in operation s130.

After controlling the power supply unit 100 to reduce the output power by the first reduction output ratio, the controller 200 sets the time interval set by the user (in the present invention, an interval of 1 second is suitable but not limited thereto) (In the present invention, one hour is appropriate, but not limited to, can be changed, hereinafter referred to as "second user setting time") within a time set by the user by detecting the temperature input from the temperature sensing unit 300. [ Is set to the maximum allowable use temperature (s150)

If it is determined that the temperature does not increase within the second user set time, the power supply unit 100 is controlled to the first decrease output and the initial lighting condition is updated.

If it is determined that the maximum usage temperature set by the user is increased within the second user set time,

(Preferably 20%, that is, 40% of the initial lighting condition output, but not limited to, it is changeable, hereinafter referred to as "second Reduction output ratio ") (S160). ≪ RTI ID = 0.0 >

 In step S160, the temperature sensed by the temperature sensing unit is sensed at a time interval set by the user, and the sensed temperature is set within a time set by the user (in the present invention, one hour is appropriate but not limited to, (I.e., the "third user set time") is increased to the maximum use temperature set by the user (s170)

If it is determined in step s170 that the temperature is increased to the maximum use temperature set by the user and the temperature is increased to the maximum use temperature set by the user, the predetermined period (in the present invention, The power supply unit 100 can be controlled so that the LED light emitting module 700 is flickered. (s180)

If it is determined in step s170 that the maximum usage temperature set by the user is not increased, the power supply unit is controlled to the second decrease output and the initial lighting condition is updated.

 Although not shown in FIG. 3 according to the present invention, if the determination result in S170 is equal to or higher than the maximum allowable temperature set by the user, the output is further reduced by a user-set range as in S160, The output of the power supply apparatus 100 can be finally shut off while repeating the steps of sensing and determining.

Also, the s180 control condition can be stored and stored in the control unit 200 and utilized as an initial lighting condition.

Next, the power switch on / off recognition will be described in detail with reference to FIG. 4

If it is determined in step s110 that the first user set time is not maintained or maintained,

The control unit 200 recognizes that the power switch is off (s200)

The power switch off determination program is maintained in the initial state, that is, the standby state (s210).

The control unit 200 controls the power supply unit 100 so that the voltage input from the power on / off detection unit 500 corresponds to the case where the power supply switch is turned on within the fourth user set time ) It is determined whether the normal output is inputted (determined as the voltage magnitude) (s220)

If the normal output is not inputted (S230), which corresponds to the case where the power switch is turned on within the fourth user set time in S220 (the power supply unit 100 is an output for supplying power to the control unit 200)

If a normal output corresponding to the case where the power switch is turned on within the fourth user set time in S220 (the power supply unit 100 is an output for supplying power of the control unit 200) is input, the user turns off the power switch (S240) after the power switch is turned off by the user's operation to turn on the dimming start signal.

The controller 200 determines whether the magnitude of the voltage value inputted through the power on / off detector 500 is greater than or equal to the OFF determination voltage (S250).

If it is determined at S250 that the voltage is less than the OFF determination voltage, it is determined that the power switch is off

In step S210, the power switch off determination program is maintained in the initial state, i.e., the standby state. Then, it is determined in step S220 whether the normal output is input (determined as the voltage magnitude) (S260)

[0054] In order to facilitate the description of the present invention, it is a time set arbitrarily and a time for which the user can change. Hereinafter, " Quot; 5th user set time "), the dimming condition corresponding to the number of times of the on-off is counted as an initial lighting condition and stored in the storage device (not shown) And performs the above-described S120. (S270)

The LED lighting fixture and the control method of the power supply unit as described above which are improved in the maximum allowable temperature warning function and the on-off recognition function are applied using LEDs as shown in FIGS. 5 to 12 Indoor interior of a ship, such as a flat plate, a down light, a factory light, a flood light, an explosion proof light, a tunnel light, a security light, a street light, a parking light, a blackboard, It can be applied to outdoor / underground light, direct light L light, FPL LED, triangle light, LED fluorescent light, FPL LED, etc.

 While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. Accordingly, all such appropriate modifications and changes, and equivalents thereof, should also be considered to fall within the scope of the present invention.

As described above, according to the LED light fixture of the present invention, which has improved maximum allowable temperature warning function and on-off recognition function of the power supply unit,

If the temperature inside the power supply unit exceeds the maximum operating temperature, the output of the current dimmed output power is reduced within a certain range. If the temperature is reduced below the allowable temperature during the user-set time, the output of the power supply unit is decreased. And if the temperature is not recovered below the maximum use temperature within the time specified by the user, the output of the power supply unit is controlled so as to be flickered with reduced power, thereby preventing burnout or fire due to overheating of the power supply unit, The present invention can be applied not only to a lighting system using a power switch, but also to a lighting system using a power switch.

100: Power supply
200:
300: Temperature sensing unit
400: operating power supply
500: Power on / off detection unit
600: dimming command signal transmission unit
700: LED light emitting module

Claims (7)

An LED light fixture illuminated by power on / off,
A controller 200 receiving a temperature input from a temperature sensing unit 300 mounted in an inner space of the power supply unit 100 and a dimming setting condition signal input from the power ON / OFF monitoring unit 500;
A power supply unit 100 for supplying power to the LED light emitting module 700 composed of one or more LED elements according to a dimming command signal output from the control unit 200;
When the power source for supplying the power to the power supply unit 100 is cut off by receiving the power from the power supply unit 100 and supplying the operation power of the control unit, the power charged in the charge devices constituting the power supply unit 100 is An operation power supply unit 400 for supplying power to the control unit 200 by discharging;
When the power switch SW for supplying power to the power supply unit 100 is turned on, the output voltage of the power supply unit 100 is sensed and when the power supply unit 100 is off, the output voltage of the charging unit constituting the power supply unit 100 is sensed A power on / off detection unit 500;
And an internal temperature sensing unit 300 of a power supply unit for monitoring heat generated by heat generation of circuit elements constituting the power supply unit 100,
The control unit (200)
(a) receiving an output from the power on / off detector 500 when the power is turned on,
(b) determining whether the output of the power on / off detector 500 is equal to or greater than the OFF determination voltage value,
(c) determining whether a state that is equal to or higher than the OFF determination voltage value is maintained for a first user set time set by the user or not
(d) determining whether the temperature value input from the temperature sensing unit 300 is equal to or higher than a preset maximum allowable temperature, when the state of being equal to or greater than the OFF determination voltage value is maintained for the first user set time,
(e) if the temperature value is less than the maximum allowable temperature, controlling the power supply unit to output the initial lighting condition stored in the control unit,
(f) controlling the power supply (100) to reduce the output power by a predetermined first reduction output ratio in the initial lighting condition when the temperature value is equal to or higher than the maximum allowable temperature to be used,
(g) detecting a temperature input from the temperature sensing unit 300 at a time interval set by the user, and determining whether the temperature is increased to a maximum allowable temperature set by the user within a second user set time set by the user,
(h) controls the power supply unit (100) to reduce the output power reduced by the first reduction output ratio by the second reduction output ratio when the user's maximum allowed temperature set by the user is within the second user settling time step,
(i) is controlled to a power reduced by a second decreasing power ratio, the temperature sensed by the temperature sensing unit 300 is sensed at a time interval set by the user, and the user sets Determining whether the temperature increases to a maximum allowable use temperature,
(j) controlling the power supply unit 100 to cause the LED light emitting module to blink at a predetermined period when the maximum usage temperature set by the user is within the third user set time,
(k) recognizing that the power switch is off when the state in which the voltage equal to or higher than the OFF determination voltage value is not maintained for the first user set time in the step (c)
(1) maintaining the power switch-off judgment process (program) in a standby state,
(m) determining whether a normal output for power supply of the power supply unit control unit is inputted within a fourth user set time set by the user,
(n) recognizing the ON state as one dimming start signal after turning off the power switch by the user operation when the normal output is inputted,
(o) determining whether the magnitude of the voltage value input through the power on / off detection unit 500 is equal to or greater than the OFF determination voltage, and
(p) The above-described steps (l) to (o) are repeated during the fifth user-set time set by the user to count the number of repeated off-ons, and the number of off- And a step of updating the dimming condition corresponding to the corresponding condition to the initial lighting condition and storing the dimming condition,
Wherein the first user set time is less than the second and third user set times and the fourth and fifth user set times are less than the second and third user set times, And the second user setting time is smaller than the fourth user setting time. delete delete  The apparatus of claim 1, wherein the power supply unit (100) and the control unit (200) are connected to the power supply unit (100) and the dimming condition control signal generated by the controller (200) through a dimming command signal transfer unit And is transmitted to the power supply unit (100). delete In the control method of the LED light fixture having improved maximum allowable temperature warning function and on-off recognition function of the power supply part
(a) a power-on-off detection unit is operated when the power is turned on,
(b) determining whether or not the output of the power on-off monitoring unit is equal to or greater than the OFF determination voltage value,
(c) determining whether a state that is equal to or higher than the OFF determination voltage value is maintained for a first user set time set by the user or not
(d) determining whether the temperature value input from the temperature sensing unit 300 is equal to or higher than a preset maximum allowable temperature when the state of the off determining voltage value is maintained for the first user set time,
(e) if the temperature value is less than the maximum allowable temperature, controlling the power supply unit to output the initial lighting condition stored in the control unit,
(f) controlling the power supply to reduce the output power by a first reduction output ratio set in advance in the initial lighting condition, when the temperature value is equal to or higher than the maximum allowable temperature used;
(g) detecting a temperature input from the temperature sensing unit at a time interval set by the user, and determining whether the temperature is increased to a maximum use temperature set by the user within a second user set time set by the user,
(h) controlling the power supply to reduce the output power reduced by the first reduction output ratio by the second reduction output ratio when the user's maximum allowed temperature set by the user is within the second user settling time,
(i) a temperature reduced by a second decreasing power ratio, and thereafter detecting a temperature input from the temperature sensing unit at a time interval set by the user, and determining a maximum usage level set by the user within a third user setting time set by the user Determining whether the temperature increases to an allowable temperature,
(j) controlling the power supply to cause the LED light emitting module to blink at a predetermined period when the maximum usage temperature set by the user is within the third user set time,
(k) In the step (c), when the state that the voltage is not less than the OFF determination voltage is not maintained for the first user set time, the controller 200 recognizes that the power switch is turned off,
(1) maintaining the power switch-off judgment process (program) in a standby state,
(m) determining whether a normal output for power supply of the power supply unit control unit is inputted within a fourth user set time set by the user,
(n) recognizing the ON state as one dimming start signal after turning off the power switch by the user operation when the normal output is inputted,
(o) determining whether the magnitude of the voltage value input through the power on / off detection unit 500 is equal to or greater than the OFF determination voltage, and
(p) The above-described steps (l) to (o) are repeated during the fifth user-set time set by the user to count the number of repeated off-ons, and the number of off- And updating and storing the dimming condition corresponding to the corresponding condition to the initial lighting condition,
Wherein the first user set time is less than the second and third user set times and the fourth and fifth user set times are less than the second and third user set times, And the fourth user setting time is shorter than the fourth user setting time.
delete
KR1020160017798A 2016-02-16 2016-02-16 WARNING TEMPERATURE at POWER SUPPLY and IMPROVED DETECTION of ON-OFF for LED LIGHTING DEVICE KR101674469B1 (en)

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