CN203071901U - Three-phase solid-state relay - Google Patents
Three-phase solid-state relay Download PDFInfo
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- CN203071901U CN203071901U CN 201320051844 CN201320051844U CN203071901U CN 203071901 U CN203071901 U CN 203071901U CN 201320051844 CN201320051844 CN 201320051844 CN 201320051844 U CN201320051844 U CN 201320051844U CN 203071901 U CN203071901 U CN 203071901U
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Abstract
The utility model provides a three-phase solid-state relay, which comprises a power supply module, a phase-lacking detecting module, a temperature detecting module, a silicon controlled rectifier state detecting module, a signal processing module, an alarm output module, a driving module and a power assembly module. The power supply module provides a voltage-stabilized power supply for all the other modules and then converts input voltage control signals into high/low-level signals capable of being recognized by the signal processing module. The driving module, the power assembly module, the alarm output module and the signal processing module are mutually connected. The three-phase solid-state relay is detected by means of the phase-lacking detecting module, the temperature detecting module and the silicon controlled rectifier state detecting module, and then the detection result is judged by means of the signal processing module. If a fault occurs to the three-phase solid-state relay, the alarm output module outputs an alarm signal. Then the fault content is indicated by an LED. The three-phase solid-state relay is simple in structure. Compared with the prior art, the state of the three-phase solid-state relay is judged by means of a microprocessor, so that the fault judging and the maintenance operation are effectively facilitated for technical personnel.
Description
Technical field
The utility model relates to the solid-state relay field, relates in particular to a kind of three-phase solid-state relay to the controllable silicon state-detection (SSR, Solid State Relay).
Background technology
Development of science and technology makes people more and more higher to the requirement of three-phase solid-state relay (SSR); the simple three-phase solid-state relay of function (SSR) can't satisfy people's demand; in actual applications; though open-phase protection has brought many facilities to use; but three-phase solid-state relay (SSR) is if break down; mainly show as the controllable silicon short circuit, open circuit or load connection appearance broken string; the user will be difficult to know system failure point, thereby be unfavorable for use, maintenance and the improvement of whole system.
The three-phase solid-state relay (SSR) of existing band open-phase protection as shown in Figure 1 comprises power module 31, open phase detection module 71, signal processing module 41, driver module 51 and (PCC) power module 61.(PCC) power module 61 is connected with three-phase electricity 11 and load 21 respectively, driver module 51 is connected with power module 31 and (PCC) power module 61 respectively, open phase detection module 71 is connected with three-phase electricity 11 and power module 31 respectively, and signal processing module 41 is connected with power module 31 and driver module 51 respectively; This three-phase solid-state relay (SSR) is monitored by 71 pairs of three-phase electricity 11 of open phase detection module, and is handled by 41 pairs of signals of signal processing module, and carries out fault and judge.
Existing three-phase solid-state relay can both realize that generally the non-full-phase state of three-phase electricity detects, and is carried out the phase shortage judgement and open-phase protection is provided by logical device.Yet, detect if will realize controllable silicon state-detection and load connection status, need the cooperation of current transformer.Prior art is that testing circuit is made a module separately, and current transformer is put into wherein, carries out modularization as required and cooperates, and only use in single-phase solid-state relay.Because the external equipment cost that makes Current Transformer is than higher, and current transformer is damaged.
Therefore, it is lower to propose a kind of cost, and can detect controllable silicon state and load connection status, and can the failure judgement point when breaking down, thereby the three-phase solid-state relay of safeguarding fast (SSR) is for being badly in need of.
The utility model content
In order to overcome the defective of prior art; it is lower that the utility model aims to provide a kind of cost; detection to controllable silicon and load connection status; (SSR) carries out overheat protector to the three-phase solid-state relay, and can be by the three-phase solid-state relay (SSR) of alarm output module output alarm information and concrete fault content.
To achieve these goals, the utility model provides a kind of three-phase solid-state relay (SSR), comprise driver module, the (PCC) power module, power module, signal processing module and open phase detection module, described driver module connects described signal processing module and described (PCC) power module, described (PCC) power module is connected with three-phase electricity and load respectively, described open phase detection module is connected with three-phase electricity, described power module is described open phase detection module, described signal processing module and described driver module provide stabilized voltage power supply, and convert the voltage control signal of wide region of input to high/low level signal that signal processing module can be identified; Wherein, described (PCC) power module comprises controllable silicon; This three-phase solid-state relay (SSR) also comprises temperature measurement module, controllable silicon state detection module and alarm output module, described controllable silicon state detection module is connected with described power module and described controllable silicon output respectively, described alarm output module is connected with described signal processing module, and described temperature measurement module is connected with described power module and described driver module;
Wherein, described open phase detection module detects the input of three-phase electricity, and the output default phase signal is to described signal processing module;
Described temperature measurement module detects the baseplate temp of described three-phase solid-state relay (SSR), thereby detects the silicon controlled temperature, and the output temperature signal is to described signal processing module;
Described controllable silicon state detection module detects described silicon controlled operating state and load connection status, and output controllable silicon status signal and load connection status signal are to described signal processing module;
Described signal processing module is judged described three-phase electricity non-full-phase state, described silicon controlled operating state and load connection status according to described default phase signal, temperature signal, controllable silicon status signal and load connection status signal, if there are abnormal conditions, then cut off and lock the output of (PCC) power module, and by the alarm output module output alarm signal.
Preferably, described controllable silicon state detection module comprises three-phase commutation bridge, described three-phase commutation bridge detects described silicon controlled operating state and load connection status, and output controllable silicon status signal and load connection status signal are to described signal processing module.
Preferably, described silicon controlled operating state comprise open circuit, short circuit and normal condition.
Preferably, described signal processing module comprises a logic processing device at least.
Preferably, described this logic processing device is microprocessor MCU/DSP.
Preferably, described alarm output module comprises LED light and warning output port, by the different blink states of described LED light, thereby indicates the fault content of current generation; And by the warning output port output fault signal of telecommunication to peripheral control unit.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the utility model detects the silicon controlled temperature by having increased temperature measurement module, when temperature reaches the protection point, just cuts off and the output of locking (PCC) power module, and Yin Wendu is too high and burn with the protection controllable silicon.
2, the utility model detects controllable silicon state and load connection status by the controllable silicon state detection module, and is judged whether controllable silicon is short circuit, opened circuit or whether normal condition and load connect and break by logical device; If there are abnormal conditions, then cut off and lock the output of (PCC) power module, by the alarm output module output alarm signal, make LED indicate the fault content of current generation, and export warning signal of telecommunication of peripheral control unit to by the warning output port.
3, the utility model is by the setting of temperature measurement module, controllable silicon state detection module and alarm output module, can judge operating state at that time, it is simple in structure, safe, and cost is lower, greatly reduced the cost of three-phase solid-state relay in supporting application, made its application more extensive.
Description of drawings
Fig. 1 is the structured flowchart of the three-phase solid-state relay of prior art band open-phase protection;
Fig. 2 is the structured flowchart of the utility model three-phase solid-state relay (SSR);
Fig. 3 is the workflow diagram of the utility model three-phase solid-state relay (SSR).
The symbol tabulation:
The 11-three-phase electricity, 21 loads, 31-power module, 41-signal processing module, 51 driver modules, 61-(PCC) power module, 71-open phase detection module;
The 101-three-phase electricity, 201-load, 301-power module, 401-signal processing module, 501-driver module, 601-(PCC) power module, 701-open phase detection module, 702-temperature measurement module, 703-controllable silicon state detection module, 801-alarm output module.
Embodiment:
Referring to the accompanying drawing that the utility model embodiment is shown, hereinafter with more detailed description the utility model.Yet the utility model can be with realizations such as multi-form, specifications, and should not be construed as the restriction of the embodiment that is subjected in this proposition.On the contrary, it is abundant and complete open in order to reach proposing these embodiment, and makes more relevant those skilled in the art person understand scope of the present utility model fully.In these accompanying drawings, for clearly visible, may amplify or dwindle relative size.
Refer now to the three-phase solid-state relay (SSR) that Fig. 2 describes the utility model embodiment in detail, as shown in Figure 2, the three-phase solid-state relay (SSR) that the utility model provides comprises driver module 501, (PCC) power module 601, power module 301, signal processing module 401, open phase detection module 701, temperature measurement module 702, controllable silicon state detection module 703 and alarm output module 801.Wherein, (PCC) power module 601 comprises controllable silicon, and driver module 501 connects signal processing module 401 and (PCC) power module 601, and (PCC) power module 601 is connected with three-phase electricity 101 and load 201 respectively; Open phase detection module 701 is connected with three-phase electricity 101, power module 301 provides stabilized voltage power supply for open phase detection module 701, temperature measurement module 702 and driver module 501, and converts the voltage control signal of wide region of input to signal processing module 401 discernible high/low level signals; And controllable silicon state detection module 703 is connected with power module 301 and controllable silicon output respectively, and alarm output module 801 is connected with signal processing module 401, and is connected to external output port; Temperature measurement module 702 is connected with power module 301 and signal processing module 401;
Wherein, power module 301 converts the voltage control signal of the wide region of input to high/low level signal, and exports signal processing module 401 to;
The temperature of the base plate of 702 pairs of three-phase solid-state relays of temperature measurement module (SSR) detects, thereby detects the silicon controlled temperature, and the output temperature signal is to signal processing module 401;
The input of 701 pairs of three-phase electricity of open phase detection module detects, and the output default phase signal is to signal processing module 401;
703 pairs of controllable silicon outputs of controllable silicon state detection module and load detect, and output controllable silicon status signal and load connection status signal are to signal processing module 401;
Signal processing module 401 is judged three-phase electricity non-full-phase state, silicon controlled operating state and load connection status according to input control signal, default phase signal, temperature signal, controllable silicon status signal and load connection status signal, if there are abnormal conditions, then cut off and lock the output of (PCC) power module, and by alarm output module 801 output alarm signals.
In addition, controllable silicon state detection module 703 comprises three-phase commutation bridge, optocoupler, resistance, described three-phase commutation bridge detects the controllable silicon output, by optocoupler, resistance the signal of three-phase commutation bridge is carried out electrical isolation, and with its detected silicon controlled open circuit, short circuit, normal condition and load connection status signal export signal processing module 401 to, handle its state of judgement by signal processing module 401, the break-make of 501 pairs of (PCC) power modules 601 of control driver module, and by alarm output module 801 output alarm signals.Preferably, signal processing module 401 is a logic processing device, and this logic processing device is microprocessor MCU/DSP.Synchronous signal processing module 401 is also handled the signal of temperature measurement module 702 and open phase detection module 701 and is judged.
And alarm output module 801 comprises LED light and warning output port, by the different blink states of described LED light, thereby indicates the fault content of current generation; And by the warning output port output alarm signal of telecommunication to peripheral control unit.
As shown in Figure 3, with the concrete workflow diagram of the utility model three-phase solid-state relay (SSR) the concrete course of work of the utility model is described below:
The three-phase solid-state relay of implementing when the utility model (SSR) in the course of the work, power module 301 provides stabilized voltage power supply for described temperature measurement module 701, open phase detection module 702, controllable silicon state detection module 703; And specifically carry out following detection alarm process:
1, when described temperature measurement module 702 is worked, temperature by the base plate of 702 pairs of three-phase solid-state relays of described temperature measurement module (SSR) detects, thereby indirect detection silicon controlled working temperature, and the output temperature signal is given signal processing module 401, if temperature is too high, send excess temperature by signal processing module 401 and control signal to driver module 501 and alarm output module 801, described driver module 501 stops driving power assembly module 601; Described alarm output module 801 is exported the fault alarm signal of telecommunication by the warning output port to the outside simultaneously, and the flicker of LED lamp, and flicker is even blanking time, and be 1 second the blanking time of for example glimmering, with indication excess temperature fault; If temperature does not exceed setting range, then three-phase solid-state relay (SSR) works on.
2, when described open phase detection module 701 is worked, carrying out phase shortage by the three-phase electricity 101 of 701 pairs of inputs of described open phase detection module detects, the output default phase signal is given signal processing module 401, if any open-phase fault appears in three-phase electricity 101, then send phase shortage by signal processing module 401 and control signal to driver module 501 and alarm output module 801, described driver module 501 stops driving power assembly module 601; Described alarm output module 801 is exported the fault alarm signal of telecommunication by the warning output port to the outside simultaneously, and the flicker of LED lamp, and flicker is inhomogeneous blanking time, and for example be that two length two are short blanking time, to indicate open-phase fault; If three-phase electricity 101 does not have open-phase fault, then three-phase solid-state relay (SSR) works on.
3, when described controllable silicon state detection module 703 is worked, carry out state-detection by 703 pairs of controllable silicon states of described controllable silicon state detection module and load connection status, output controllable silicon status signal and load connection status signal are to signal processing module 401, when outside not during input control signal, if short circuit appears in controllable silicon, send the controllable silicon failure control signal to driver module 501 and alarm output module 801, the operating state of lock drive module 501 by signal processing module 401; Described alarm output module 801 is exported the fault alarm signal of telecommunication by the warning output port to the outside simultaneously, and the flicker of LED lamp, and flicker is inhomogeneous blanking time, and for example be that two length three are short blanking time, to indicate the controllable silicon short trouble; When outside input control signal, if opening circuit appears in controllable silicon, send the controllable silicon failure control signal to driver module 501 and alarm output module 801 by signal processing module 401, described driver module 501 stops driving power assembly module 601; Described alarm output module 801 is exported the fault alarm signal of telecommunication by the warning output port to the outside simultaneously, and the flicker of LED lamp, and flicker is inhomogeneous blanking time, and for example be that two length three are short blanking time, to indicate the controllable silicon open circuit fault;
If the load broken string sends the load broken string by signal processing module 401 and controls signal to driver module 501 and alarm output module 801, described driver module 501 stops driving power assembly module 601; Described alarm output module 801 is exported the fault alarm signal of telecommunication by the warning output port to the outside simultaneously, and the flicker of LED lamp, and flicker is inhomogeneous blanking time, and for example be unexcepted misfortune blanking time, with indication load disconnection fault; If controllable silicon state and load connection status are normal, then three-phase solid-state relay (SSR) works on.
Need to prove, more than the testing process of each module there is no strict sequencing, for example open phase detection module 701 also can detect before temperature measurement module 702, in no particular order priority.
Therefore; the utility model adopts the phase shortage module; temperature measurement module; the mode of controllable silicon state detection module and alarm output module combination; three-phase solid-state relay reliability of applying and fail safe have not only been improved; by temperature measurement module to the silicon controlled overheat protector; and by the detection of controllable silicon state detection module to controllable silicon state and load connection status; and by signal processing module judgment task state; under the effect of alarm output module, utilize the different flashing mode output fault content of LED; make the quick failure judgement of staff; and overhaul, greatly improved operating efficiency.
In addition, we it should further be appreciated that the utility model is not as limit, and the microprocessor of signal processing module is not limited only to the MCU/DSP chip in the three-phase solid-state relay that the utility model relates to, and can also be other devices with logical process function.
Obviously, those skilled in the art can carry out various changes and distortion to the utility model and not break away from spirit and scope of the present utility model.Like this, if these modifications of the present utility model and distortion belong in the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes interior.
Claims (6)
1. three-phase solid-state relay, comprise driver module, the (PCC) power module, power module, signal processing module and open phase detection module, described driver module connects described signal processing module and described (PCC) power module, described (PCC) power module is connected with three-phase electricity and load respectively, described open phase detection module is connected with three-phase electricity, described power module is described open phase detection module, described signal processing module and described driver module provide stabilized voltage power supply, and convert the voltage control signal of wide region of input to high/low level signal that signal processing module can be identified; Wherein, described (PCC) power module comprises controllable silicon; It is characterized in that, this three-phase solid-state relay also comprises temperature measurement module, controllable silicon state detection module and alarm output module, described controllable silicon state detection module is connected with described power module and described controllable silicon output respectively, described alarm output module is connected with described signal processing module, and described temperature measurement module is connected with described power module and described driver module;
Wherein, described open phase detection module detects the input of three-phase electricity, and the output default phase signal is to described signal processing module;
Described temperature measurement module detects the baseplate temp of described three-phase solid-state relay, thus indirect detection silicon controlled temperature, and the output temperature signal is to described signal processing module;
Described controllable silicon state detection module detects described silicon controlled operating state and load connection status, and output controllable silicon status signal and load connection status signal are to described signal processing module;
Described signal processing module is judged described three-phase electricity non-full-phase state, described silicon controlled operating state and load connection status according to described default phase signal, temperature signal, controllable silicon status signal and load connection status signal, if there are abnormal conditions, then cut off and lock the output of (PCC) power module, and by the alarm output module output alarm signal.
2. three-phase solid-state relay according to claim 1, it is characterized in that, described controllable silicon state detection module comprises three-phase commutation bridge, described three-phase commutation bridge detects described silicon controlled operating state and load connection status, and output controllable silicon status signal and load connection status signal are to described signal processing module.
3. three-phase solid-state relay according to claim 1 and 2 is characterized in that, described silicon controlled operating state comprises and opening circuit, short circuit and normal condition.
4. three-phase solid-state relay according to claim 1 is characterized in that, described signal processing module comprises a logic processing device at least.
5. three-phase solid-state relay according to claim 4 is characterized in that, described logic processing device is microprocessor MCU/DSP.
6. three-phase solid-state relay according to claim 1 is characterized in that, described alarm output module comprises LED light and warning output port, by the different blink states of described LED light, indicates the fault content of current generation; And by the warning output port output alarm signal of telecommunication to peripheral control unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320051844 CN203071901U (en) | 2013-01-30 | 2013-01-30 | Three-phase solid-state relay |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320051844 CN203071901U (en) | 2013-01-30 | 2013-01-30 | Three-phase solid-state relay |
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| CN203071901U true CN203071901U (en) | 2013-07-17 |
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| CN 201320051844 Expired - Lifetime CN203071901U (en) | 2013-01-30 | 2013-01-30 | Three-phase solid-state relay |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570857A (en) * | 2014-12-19 | 2015-04-29 | 江南大学 | Intelligent control system for alternating current solid-state relay |
| CN109980858A (en) * | 2019-04-29 | 2019-07-05 | 泰州洛克电子有限公司 | A kind of special solid state relay module with warning function |
| CN110426313A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system with line diagnosis function |
| CN114047419A (en) * | 2021-09-26 | 2022-02-15 | 西门子工厂自动化工程有限公司 | Silicon controlled rectifier detector and silicon controlled rectifier performance detection method |
-
2013
- 2013-01-30 CN CN 201320051844 patent/CN203071901U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570857A (en) * | 2014-12-19 | 2015-04-29 | 江南大学 | Intelligent control system for alternating current solid-state relay |
| CN109980858A (en) * | 2019-04-29 | 2019-07-05 | 泰州洛克电子有限公司 | A kind of special solid state relay module with warning function |
| CN110426313A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system with line diagnosis function |
| CN114047419A (en) * | 2021-09-26 | 2022-02-15 | 西门子工厂自动化工程有限公司 | Silicon controlled rectifier detector and silicon controlled rectifier performance detection method |
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Granted publication date: 20130717 |