CN211019167U - Bluetooth headset and charging device and charging system thereof - Google Patents
Bluetooth headset and charging device and charging system thereof Download PDFInfo
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- CN211019167U CN211019167U CN201922006763.8U CN201922006763U CN211019167U CN 211019167 U CN211019167 U CN 211019167U CN 201922006763 U CN201922006763 U CN 201922006763U CN 211019167 U CN211019167 U CN 211019167U
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Abstract
The utility model provides a bluetooth headset and charging device and charging system thereof. The charging device comprises a charging interface, the charging interface comprises a detection port, a power supply port and a grounding port, wherein the input end of the detection port is connected with the input end of the grounding port and then connected with a ground wire; the detection port is connected with a detection port of the Bluetooth headset so as to output a first voltage to the detection port when the detection port is connected with the detection port, and the first voltage of the detection port is converted into a second voltage when the detection port is disconnected with the detection port; the ground port is connected with a ground terminal of the Bluetooth headset, the power supply port is connected with a charging port of the Bluetooth headset, and the power supply port is used for charging the charging voltage output by the Bluetooth headset when the voltage of the detection port is the first voltage and stopping charging the Bluetooth headset when the voltage of the detection port is the second voltage.
Description
Technical Field
The utility model relates to an electronic product switching on and shutting down technical field, more specifically relate to a bluetooth headset and charging device and charging system thereof.
Background
With the continuous development of electronic product technology, electronic devices such as smart phones, notebook computers, interphones, bluetooth headsets and the like are increasingly popularized. The earphone is a pair of conversion units for receiving the electric signal sent by the media player or the receiver and converting the electric signal into audible sound waves by using a loudspeaker close to the ear.
The existing earphones can be divided into wired earphones and wireless earphones, wherein the wired earphones need a left earphone and a right earphone to form a left sound channel and a right sound channel in a wired connection mode, a stereo effect is generated, and the wearing is inconvenient. The wireless headset communicates with the terminal through a wireless communication protocol (such as bluetooth), and compared with a wired headset, the wireless headset has the characteristics of no need of arranging a data line and convenience in use. Among them, True Wireless bluetooth headsets (TWS) are currently the latest ones.
The use of the TWS Bluetooth headset is more and more popular, no additional wire is bound, and convenience and fun are provided for life and work by listening to music, calling and chatting with real-time voice such as WeChat through the Bluetooth headset, and the TWS Bluetooth headset gradually becomes a part of articles for daily use of people.
The TWS earphone is connected with the charging box through a metal contact point, the existing TWS earphone contact point has a design of 2PIN and above, and when the charging box works normally with electricity, the functions of automatic on-off and master-slave switching of the earphone can be realized.
Current TWS headset applications have the following drawbacks: the power supply of the charging box is used for providing a logic level for the earphone to control the earphone function, and when the power supply of the charging box is used up to zero, the functions of automatic on/off and master-slave switching of the earphone cannot be realized.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the charging device cannot be turned on or off without power at present, the utility model provides a charging device of a bluetooth headset, which comprises a charging interface, wherein the charging interface comprises a detection port, a power supply port and a grounding port, and the input end of the detection port is connected with the input end of the grounding port and then connected with a ground wire;
the detection port is connected with a detection port of the Bluetooth headset so as to output a first voltage to the detection port when the detection port is connected with the detection port, and the first voltage of the detection port is converted into a second voltage when the detection port is disconnected with the detection port;
the ground port is connected with a ground terminal of the Bluetooth headset, the power supply port is connected with a charging port of the Bluetooth headset, and the power supply port is used for charging the charging voltage output by the Bluetooth headset when the voltage of the detection port is the first voltage and stopping charging the Bluetooth headset when the voltage of the detection port is the second voltage.
Optionally, the charging device further includes a first resistor, one end of the first resistor is connected to the input end of the ground port, and the other end of the first resistor is connected to the input end of the detection port.
Optionally, the charging device includes two charging interfaces for respectively charging a first earphone and a second earphone of the bluetooth earphone.
Optionally, the charging device further comprises: a charge control circuit and a battery;
one end of the charging control circuit is connected with the anode of the battery, the other end of the charging control circuit is connected with the power supply port, and the charging control circuit is used for outputting charging voltage through the power supply port when the voltage of the detection port is the first voltage.
A second aspect of the utility model provides a bluetooth headset, bluetooth headset includes that the earphone charges interface, detection circuit and the control unit, the earphone charges the interface and includes: a probe port, a ground terminal, and a charging port;
the grounding terminal is connected with a grounding port of a charging device, and the charging port is connected with a power supply port of the charging device so as to receive power supply of the charging device to charge the Bluetooth headset;
the detection port is connected with a detection port of the charging device, when the detection port is connected with the detection port, the voltage of the detection port is a first voltage output by the detection port, and when the detection port is disconnected with the detection port, the voltage of the detection port is converted into a second voltage from the first voltage;
the detection circuit is used for detecting the voltage of the detection port, when the voltage of the detection port is a first voltage, the detection circuit outputs a shutdown signal to the control unit, and the control unit receives the shutdown signal and then controls the Bluetooth headset to be shut down; when the voltage of the detection port is a second voltage, the detection circuit outputs a starting signal to the control unit, and the control unit receives the starting signal and then controls the Bluetooth headset to be started.
Optionally, the bluetooth headset further includes a headset battery, a first capacitor and a second resistor, wherein the headset power supply is electrically connected to the output terminal of the charging port, and a negative electrode of the headset battery is connected to the output terminal of the ground terminal;
the detection port comprises a first detection port and a second detection port, two ends of the first capacitor are respectively connected with the output end of the grounding terminal and the output end of the first detection port, and two ends of the second detection port are respectively connected with the second resistor and the earphone battery;
when the voltage of the second detection port is the first voltage, the detection circuit outputs a shutdown signal to the control unit, and the control unit receives the shutdown signal and then controls the Bluetooth headset to be shut down; when the voltage of the second detection port is a second voltage, a starting signal is output to the control unit, and the control unit receives the starting signal and then controls the Bluetooth headset to be started.
Optionally, the bluetooth headset further includes a third resistor and a second capacitor, two ends of the third resistor are respectively connected to the input end of the second detection port and the output end of the first port, one end of the second capacitor is connected to the input end of the second detection port, and the other end of the second capacitor is grounded.
Optionally, the bluetooth headset comprises a first headset and a second headset, and the first headset and the second headset are configured to perform master-slave headset switching when being alternately and independently powered on and powered off;
the bluetooth headset further comprises a switching communication unit, the switching communication unit of the first headset and the switching communication unit of the second headset are configured to transmit a master-slave switching signal between the switching communication unit of the first headset and the switching communication unit of the second headset before any headset to be powered off in the first headset and the second headset is powered off, and the control unit is configured to control the other powered-on headset to be a master headset according to the master-slave switching signal and then control the powered-off headset to be powered off.
Optionally, the control unit of the first earphone is configured to control the first earphone to be powered on and control the first earphone to remain as a slave earphone when the voltage of the second detection port in the first earphone is converted from the first voltage to a second voltage;
and/or the control unit of the first earphone is configured to control the first earphone to be switched to a master earphone after the first earphone receives a master-slave switching signal of the second earphone before the second earphone is powered off.
A third aspect of the present invention provides a charging system for a bluetooth headset, the charging system includes the above-mentioned charging device and the above-mentioned bluetooth headset.
According to the utility model discloses bluetooth headset and charging device and charging system thereof, wherein, bluetooth headset with the matched charging structure all includes three connection port in the charging device, wherein, the grounding wire for the charging device provides bluetooth headset logic detection, has realized that the TWS earphone is used up as the electric box power of charging and is the automatic switching on/off machine of earphone after zero, reinforcing user's experience sense.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.
Fig. 1 is a schematic block diagram of a charging device for a bluetooth headset according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a bluetooth headset according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a charging system for a bluetooth headset according to an embodiment of the present invention;
fig. 4 is a schematic circuit structure diagram of a charging system of a bluetooth headset according to an embodiment of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It is apparent that the practice of the invention is not limited to the specific details known to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
It is to be understood that the terms "a," "an," and "the" as used herein are intended to describe specific embodiments only and are not to be taken as limiting the invention, which is intended to include the plural forms as well, unless the context clearly indicates otherwise. When the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like as used herein are for illustrative purposes only and are not limiting.
Ordinal words such as "first" and "second" are referred to in this application as labels only, and do not have any other meanings, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".
In the following, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the invention and do not limit the invention.
Example one
The utility model provides a bluetooth headset's charging device to solve above-mentioned technical problem, carry out detailed explanation to charging device below in combination with the drawing.
First, referring to fig. 1, fig. 1 shows a schematic block diagram of a charging device 100 according to an embodiment of the present invention.
As shown in fig. 1, the charging device of the embodiment of the present invention includes a charging interface 110, which includes a power supply port 101, a ground port 102 and a detection port 103, wherein an input end of the detection port 103 is connected to an input end of the ground port 102 and then connected to a ground terminal;
the detection port 103 is connected with a detection port of the bluetooth headset, so that a first voltage is output to the detection port when the detection port is connected with the detection port, and the first voltage of the detection port is converted into a second voltage when the detection port is disconnected with the detection port;
the ground port 102 is connected to a ground terminal of the bluetooth headset, and the power supply port 101 is connected to a charging port of the bluetooth headset, and is configured to charge the output charging voltage of the bluetooth headset when the voltage of the detection port is a first voltage and stop charging the bluetooth headset when the voltage of the detection port is a second voltage.
In an embodiment of the present invention, the charging device is a charging box of the TWS headset, and the charging device charges the headset through the charging interface of the headset and the interface electrical connection corresponding to the charging box. The charging device further includes other circuits 120, such as a charging control circuit, and in addition, the charging device further includes a charging circuit and a battery.
The charging device will be described in detail with reference to fig. 4. Be provided with two independent charging modules in charging device, every module all includes charging circuit, battery and the interface that charges to be used for charging to bluetooth headset's first earphone and second earphone respectively. In the charging device, other circuits may be further included, wherein the other circuits in fig. 4 may include a charging control circuit, wherein two independent charging modules may be controlled by respective charging control circuits or by the same charging control circuit.
Wherein, any one of the first earphone and the second earphone is a left earphone, and the other one is a right earphone.
The charging control circuit may be a Micro-programmed control unit (MCU) or a similar structure, which is not limited herein.
Optionally, one end of the charging control circuit is connected to the positive electrode of the battery, and the other end is connected to the power supply port +5V, for outputting a charging voltage to the power supply port +5V when the charging device is connected to the detection port DET _ L of the bluetooth headset at the detection port GND _ DET _ L.
Optionally, in the charging device, a boost circuit in fig. 4 may be further included to adjust the charging voltage.
Specifically, as shown in fig. 4, after the bluetooth headset is placed in the charging device, the detection port DET _ L of the headset charging interface of the bluetooth headset may be connected to the detection port GND _ DET _ L of the charging box, at this time, when the detection port is connected to the detection port, a first voltage is output to the detection port, when the voltage of the detection port is the first voltage, the bluetooth headset performs master-slave switching and shutdown after the detection port of the bluetooth headset receives the first voltage signal, and then the charging control circuit controls the battery to output a charging voltage to the power supply port +5V to charge the bluetooth headset.
Meanwhile, when the detection port DET _ L of the earphone charging interface of the bluetooth earphone is disconnected from the detection port GND _ DET _ L of the charging box, for example, after the bluetooth earphone is taken out of the charging box, the first voltage of the detection port is converted into a second voltage, wherein the second voltage is larger than the first voltage, when the voltage of the detection port is changed into the second voltage, the charging control circuit can stop outputting the charging voltage to the power supply port +5V after the detection port of the bluetooth earphone receives a second voltage signal, and the earphone is automatically turned on to reduce the electric quantity consumption of the battery in the charging box.
Further, the charging device further includes a charging circuit, which is disposed between the battery and the power supply port +5V, and is used for increasing or decreasing the voltage output by the battery, for example, the voltage output by the battery is usually 3.7V-4.2V, and the required charging voltage of the bluetooth headset is 5V, so that the charging circuit is required to increase the voltage output by the battery to meet the required voltage of the bluetooth headset, and certainly, when charging other electronic devices, the voltage output by the battery may also be decreased.
As shown in fig. 4, the ground port GND of the charging device is connected to the ground terminal GND _ L of the bluetooth headset, thereby ensuring a ground reference voltage.
The three ports of the charging interface may be connected by PIN, but are not limited to the illustrated method.
The charging device further comprises a first resistor R2, one end of the first resistor R2 is connected with the input end of the ground port GND, the other end of the first resistor R2 is connected with the input end of the detection port GND _ DET _ L, the size of the first resistor is less than 10M ohms so as to protect the charging device and prevent 5V voltage from flowing into a circuit of the detection port GND _ DET _ L to damage a circuit device when the earphone is reversely placed due to misoperation, one ends of the first capacitor C2 and the second capacitor C1 are connected with the ground, and the circuit has the function of stabilizing voltage so as to output stable detection voltage to perform various logic controls on the Bluetooth earphone.
In addition, when the charging device is an earphone charging box, the earphone charging box further comprises a box body, an intermediate member, a wire joint, a winding clamping piece, a circuit board, a battery, a box cover and other parts.
Wherein, the box cover and the box body can be closed to form a closed accommodating space for storing the earphones without using the earphones.
It should be noted that, in the embodiment of the present invention, the charging device and the bluetooth headset are matched with each other and interact with each other to realize the charging of the bluetooth headset by the charging device, therefore, in different embodiments, although the description is focused on the bluetooth headset and the charging device, the same and similar parts between the embodiments can be referred to each other. The relevant description of the various embodiments may be incorporated in further embodiments, e.g. without contradiction.
Example two
The utility model also provides a bluetooth headset, bluetooth headset and the charging device of embodiment one in match each other, as shown in fig. 2, bluetooth headset includes that the earphone charges interface 230, detection circuit 210 and the control unit 220, and the earphone charges the interface and includes: a charging port 201, a ground terminal 202, and a probe port 203;
the grounding terminal 202 is connected with the grounding port 102 of the charging device, and the charging port 201 is connected with the power supply port 101 of the charging device, so as to receive the power supply of the charging device to charge the bluetooth headset;
the detection port 203 is connected with the detection port 103, when the detection port 203 is connected with the detection port, the voltage of the detection port 203 is a first voltage output by the detection port 103, and when the detection port is disconnected with the detection port, the voltage of the detection port 203 is converted from the first voltage into a second voltage;
the detection circuit 210 is configured to detect a voltage of the probe port 203, output a shutdown signal to the control unit 220 when the voltage of the probe port 203 is a first voltage, and control the bluetooth headset to shutdown after the control unit 220 receives the shutdown signal; when the voltage of the probing port 203 is the second voltage, the power-on signal is output to the control unit 220, and the control unit 220 controls the bluetooth headset to be powered on after receiving the power-on signal.
As shown in fig. 4, the bluetooth headset further includes a headset battery, a first capacitor C2, and a second resistor r3, wherein a positive electrode of the headset power supply is electrically connected to an output terminal of the charging port +5V _ L, a negative electrode of the headset power supply is connected to an output terminal of the ground terminal GND _ L, and the probing port DET _ L includes a first probing port and a second probing port, two ends of the first capacitor C2 are respectively connected to an output terminal of the ground terminal GND _ L and an output terminal of the second probing port, and two ends of the second probing port are respectively connected to the second resistor and the headset battery.
As shown in fig. 4, after the bluetooth headset is placed in the charging device, the ground terminal GND _ L is connected to the ground port GND of the charging device, the charging port +5V _ L is connected to the power supply port +5V of the charging device, and the probing port DET _ L is connected to the probing port GND _ DET _ L, at this time, the first probing port VDD _ L and the second probing port HP _ DET _ L are both connected to the ground line, and the first probing port VDD _ L and the second probing port HP _ DET _ L are both at a first voltage (low level), at this time, the probing circuit outputs a shutdown signal to the control unit, and the control unit controls the bluetooth headset to shutdown after receiving the shutdown signal.
As shown in fig. 4, after the bluetooth headset is taken out of the charging device, the ground terminal GND _ L is disconnected from the ground port GND of the charging device, the charging port +5V _ L is disconnected from the power supply port +5V of the charging device, and the probing port DET _ L is disconnected from the detection port GND _ DET _ L. at this time, two ends of the second probing port HP _ DET _ L are respectively connected to the second resistor and the headset battery, since the resistor R1 has a larger resistance value, the first probing port VDD _ L is a first voltage (low level), the second resistor R3 has a smaller resistance value, and thus the second probing port HP _ DET _ L is a second voltage (high level) output by the headset battery, the detection circuit outputs an on signal to the control unit, and the control unit receives the on signal to control the bluetooth headset to turn on.
The utility model discloses in through improving bluetooth headset and charging device, the interface that will charge sets up to three port, wherein, the second is surveyed the voltage height of port and is only connected correlatively with whether charging device electricity, and whether have the electricity with charging device's battery has not to do not have the relation, even charging device's battery does not have the electricity, the voltage that the port was surveyed to the second still can export first voltage and second voltage respectively when connecting with the disconnection to realize bluetooth headset's shutdown and start.
In addition, the switching between the master earphone and the slave earphone of the Bluetooth earphone can be further realized through improvement, wherein the master-slave earphone switching means that when one of the left second earphones needs to be powered off and charged, the earphone which is powered off and charged is switched to the slave earphone, and the earphone which is normally used is switched to the master earphone, so that the normal use of the earphones is ensured, and when the left second earphones are powered off or powered on and used simultaneously, the master-slave earphone does not need to be switched.
The Bluetooth headset comprises a first headset and a second headset, and the first headset and the second headset are switched between a master headset and a slave headset when being switched on and switched off alternately and independently;
the Bluetooth headset further comprises a switching communication unit for communicating between the two headsets when the master headset is switched from the slave headset. The switching communication unit of the first earphone and the switching communication unit of the second earphone are configured to transmit a master-slave switching signal between the switching communication unit of the first earphone and the switching communication unit of the second earphone before any earphone to be powered off in the first earphone and the second earphone is powered off, and the control unit is configured to control the other powered-on earphone to be the master earphone and then control the earphone to be powered off according to the master-slave switching signal.
For example, when a first earphone needs to be charged, the first earphone is placed in a charging device, the ground terminal 202 is connected to the ground port 102 of the charging device, the charging port 201 is connected to the power supply port 101 of the charging device, and the detection port 203 is connected to the detection port 103, at this time, both the first detection port VDD _ L and the second detection port HP _ DET _ L are connected to the ground line, both the first detection port and the second detection port are at a first voltage (low level), the control unit controls the detection circuit of the first earphone to output a master-slave switching signal before the first earphone is turned off, the switching communication unit of the first earphone performs switching for transmitting the master-slave switching signal to the switching communication unit of the second earphone, the switching communication unit of the second earphone outputs the master-slave switching signal to the control unit of the second earphone, the control unit of the second earphone checks whether the second earphone is the master earphone, if the second earphone is the second earphone, the second earphone is switched to the master earphone, and the first earphone is switched to ensure that the second earphone works normally when the first earphone is charged.
When the second earphone is charged, the principle of the second earphone is the same as that of the first earphone, and the description is omitted here.
Further, when the first earphone is charged and taken out from the charging device, as shown above, the voltage of the second detection port in the first earphone is converted from the first voltage to the second voltage, and after the control unit of the first earphone controls the first earphone to be powered on, at this time, the second earphone works normally, the first earphone is the slave earphone, and the switching between the master earphone and the slave earphone is not performed, but when the second earphone needs to be powered off for charging, before the second earphone is powered off, and after the first earphone receives the master-slave switching signal of the second earphone, the first earphone is switched to the master earphone, and the second earphone is powered off.
The control unit is used for receiving the control signal to control the Bluetooth headset to execute response actions, such as startup and shutdown and master-slave headset switching.
Optionally, the Control Unit is a Micro-programmed Control Unit (MCU) or a similar structure, which is not limited herein.
According to the utility model discloses bluetooth headset and charging device and charging system thereof, wherein, the matched charging structure all includes three connection port in bluetooth headset and the charging device, and wherein, the for the charging device earth connection provides bluetooth headset logic and detects, has realized that the TWS earphone is used up as the electric box power of charging and is the automatic power-on/off of earphone after zero, reinforcing user's experience sense.
EXAMPLE III
The utility model also provides a bluetooth headset's charging system, charging system includes: the charging device of the first embodiment and the bluetooth headset of the second embodiment.
As shown in fig. 3 and 4, the charging device includes a charging interface 110, which includes a power supply port 101, a ground port 102, and a detection port 103, wherein an input end of the detection port 103 is connected to an input end of the ground port and then connected to a ground end;
the detection port 103 is connected with a detection port of the bluetooth headset, so that a first voltage is output to the detection port when the detection port is connected with the detection port, and the first voltage of the detection port is converted into a second voltage when the detection port is disconnected with the detection port;
the ground port 102 is connected to a ground terminal of the bluetooth headset, and the power supply port 101 is connected to a charging port of the bluetooth headset, and is configured to charge the output charging voltage of the bluetooth headset.
Bluetooth headset includes that the earphone charges interface 230, detection circuit 210 and the control unit 220, and the earphone charges the interface and includes: a charging port 201, a ground terminal 202, and a probe port 203;
the grounding terminal 202 is connected with the grounding port 102 of the charging device, and the charging port 201 is connected with the power supply port 101 of the charging device, so as to receive the power supply of the charging device to charge the bluetooth headset;
the detection port 203 is connected with the detection port 103, when the detection port 203 is connected with the detection port, the voltage of the detection port 203 is a first voltage output by the detection port 103, and when the detection port is disconnected with the detection port, the voltage of the detection port 203 is converted from the first voltage into a second voltage;
the detection circuit 210 is configured to detect a voltage of the probe port 203, output a shutdown signal to the control unit 220 when the voltage of the probe port 203 is a first voltage, and control the bluetooth headset to shutdown after the control unit 220 receives the shutdown signal; when the voltage of the probing port 203 is the second voltage, the power-on signal is output to the control unit 220, and the control unit 220 controls the bluetooth headset to be powered on after receiving the power-on signal.
For detailed descriptions of the charging device and the bluetooth headset, reference may be made to the explanations and descriptions in the first and second embodiments, and further description is omitted here.
According to the utility model discloses charging system, wherein, the charging structure of matching all includes three connection port in bluetooth headset and the charging device, and wherein, the charging device is provided bluetooth headset logic with the earth connection and is detected, has realized that the TWS earphone is used up as the electric box power of charging and is the automatic power-on/off of earphone after zero, and reinforcing user's experience is felt.
The terms are used as they are commonly understood by those skilled in the art of the present invention. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "part," "member," and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The charging device of the Bluetooth headset is characterized by comprising a charging interface, wherein the charging interface comprises a detection port, a power supply port and a grounding port, and an input end of the detection port is connected with an input end of the grounding port and then connected with a ground wire;
the detection port is connected with a detection port of the Bluetooth headset so as to output a first voltage to the detection port when the detection port is connected with the detection port, and the first voltage of the detection port is converted into a second voltage when the detection port is disconnected with the detection port;
the ground port is connected with a ground terminal of the Bluetooth headset, the power supply port is connected with a charging port of the Bluetooth headset, and the power supply port is used for charging the charging voltage output by the Bluetooth headset when the voltage of the detection port is the first voltage and stopping charging the Bluetooth headset when the voltage of the detection port is the second voltage.
2. The charging device for the bluetooth headset as claimed in claim 1, further comprising a first resistor, wherein one end of the first resistor is connected to the input terminal of the ground port, and the other end of the first resistor is connected to the input terminal of the detection port.
3. The charging apparatus for bluetooth headset according to claim 1, wherein the charging apparatus comprises two charging interfaces for charging a first headset and a second headset of the bluetooth headset respectively.
4. The charging apparatus for a bluetooth headset according to claim 1, further comprising: a charge control circuit and a battery;
one end of the charging control circuit is connected with the anode of the battery, the other end of the charging control circuit is connected with the power supply port, and the charging control circuit is used for outputting charging voltage through the power supply port when the voltage of the detection port is the first voltage.
5. The utility model provides a bluetooth headset, its characterized in that, bluetooth headset includes earphone interface, detection circuitry and the control unit that charges, the earphone interface that charges includes: a probe port, a ground terminal, and a charging port;
the grounding terminal is connected with a grounding port of a charging device, and the charging port is connected with a power supply port of the charging device so as to receive power supply of the charging device to charge the Bluetooth headset;
the detection port is connected with a detection port of the charging device, when the detection port is connected with the detection port, the voltage of the detection port is a first voltage output by the detection port, and when the detection port is disconnected with the detection port, the voltage of the detection port is converted into a second voltage from the first voltage;
the detection circuit is used for detecting the voltage of the detection port, when the voltage of the detection port is a first voltage, the detection circuit outputs a shutdown signal to the control unit, and the control unit receives the shutdown signal and then controls the Bluetooth headset to be shut down; when the voltage of the detection port is a second voltage, the detection circuit outputs a starting signal to the control unit, and the control unit receives the starting signal and then controls the Bluetooth headset to be started.
6. The bluetooth headset according to claim 5, further comprising a headset battery, a first capacitor and a second resistor, wherein the headset battery is electrically connected to the output terminal of the charging port, and a negative electrode of the headset battery is connected to the output terminal of the ground terminal;
the detection port comprises a first detection port and a second detection port, two ends of the first capacitor are respectively connected with the output end of the grounding terminal and the output end of the first detection port, and two ends of the second detection port are respectively connected with the second resistor and the earphone battery;
when the voltage of the second detection port is the first voltage, the detection circuit outputs a shutdown signal to the control unit, and the control unit receives the shutdown signal and then controls the Bluetooth headset to be shut down; when the voltage of the second detection port is a second voltage, a starting signal is output to the control unit, and the control unit receives the starting signal and then controls the Bluetooth headset to be started.
7. The bluetooth headset according to claim 6, further comprising a third resistor and a second capacitor, wherein two ends of the third resistor are respectively connected to the input end of the second probe port and the output end of the first port, and one end of the second capacitor is connected to the input end of the second probe port, and the other end is connected to ground.
8. The bluetooth headset of claim 6, wherein the bluetooth headset comprises a first headset and a second headset, the first headset and the second headset being configured to switch between master and slave headsets when the first headset and the second headset are alternately and individually powered on and off;
the bluetooth headset further comprises a switching communication unit, the switching communication unit of the first headset and the switching communication unit of the second headset are configured to transmit a master-slave switching signal between the switching communication unit of the first headset and the switching communication unit of the second headset before any headset to be powered off in the first headset and the second headset is powered off, and the control unit is configured to control the other powered-on headset to be a master headset according to the master-slave switching signal and then control the powered-off headset to be powered off.
9. The bluetooth headset according to claim 8, wherein the control unit of the first headset is configured to control the first headset to be powered on and to control the first headset to remain as a slave headset when the voltage of the second probe port in the first headset is converted from the first voltage to a second voltage;
and/or the control unit of the first earphone is configured to control the first earphone to be switched to a master earphone after the first earphone receives a master-slave switching signal of the second earphone before the second earphone is powered off.
10. A charging system for a bluetooth headset, characterized in that the charging system comprises a charging apparatus as claimed in one of claims 1 to 4 and a bluetooth headset as claimed in one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922006763.8U CN211019167U (en) | 2019-11-19 | 2019-11-19 | Bluetooth headset and charging device and charging system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922006763.8U CN211019167U (en) | 2019-11-19 | 2019-11-19 | Bluetooth headset and charging device and charging system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN211019167U true CN211019167U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922006763.8U Active CN211019167U (en) | 2019-11-19 | 2019-11-19 | Bluetooth headset and charging device and charging system thereof |
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| Country | Link |
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| CN (1) | CN211019167U (en) |
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