CN213693175U - Voltage switching device for emergency starting power supply - Google Patents
Voltage switching device for emergency starting power supply Download PDFInfo
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- CN213693175U CN213693175U CN202022283002.XU CN202022283002U CN213693175U CN 213693175 U CN213693175 U CN 213693175U CN 202022283002 U CN202022283002 U CN 202022283002U CN 213693175 U CN213693175 U CN 213693175U
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- power supply
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Abstract
The utility model discloses a voltage switching device for an emergency starting power supply, which comprises a power supply body, a first control circuit unit, a second control circuit unit and a storage battery clamp with a double-wire cable; the power supply body is electrically connected with the first control circuit unit through an electric lead; the No. 2 discharge interface on the first control circuit unit is electrically connected with the double-wire cable on the storage battery clamp; the second control circuit unit with different switching circuits is connected to the first control circuit unit in an inserting mode, the series or parallel connection state of the energy storage electric plate A and the energy storage electric plate B of the first control circuit unit is changed, switching between 12V/24V and 25/50V power supplies can be achieved, and the problems that an output power supply is single or output voltage is inconvenient to switch in the prior art are solved. The lithium battery protection circuit is arranged in the voltage conversion circuit board, so that protection of the emergency starting power supply is effectively realized.
Description
Technical Field
The utility model belongs to the technical field of portable power source, specific theory especially relates to a voltage switching device for emergent starting power.
Background
The automobile emergency starting power supply is a battery which utilizes high-rate discharge of a lithium polymer battery or a lithium iron phosphate battery and the like, is power supply equipment which can start an automobile under the condition that the automobile starting battery fails, the automobile starting voltage is generally 12V, the starting voltage of a large automobile is 24V, in order to deal with the condition that the automobile is difficult to start due to insufficient electric quantity of the automobile, the automobile emergency starting power supply is generally placed on the automobile at present, and is small in size and convenient to carry, so that the automobile emergency starting power supply is rapidly raised in the market.
In order to meet the requirement of large-current application in starting automobiles, the battery capacity of the equipment is large, the high-rate discharge battery is adopted, the output voltage of the conventional emergency starting power supply is single, the circuit protection corresponding to the starting power supply is lacked, and under the condition that the battery is damaged, the battery is swelled when being charged again, or the battery is on fire, so that huge property and personal safety risks can be caused.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above object, the present invention adopts a technical solution in that the present invention provides a voltage switching device for an emergency starting power supply, comprising a power supply body, a first control circuit unit, a second control circuit unit, and a battery clamp with a two-wire cable; the power supply body is electrically connected with the first control circuit unit through an electric lead;
the first control circuit unit is provided with a No. 1 charging interface and a No. 1 discharging interface which are electrically connected with the power supply body, and the No. 1 charging interface and the No. 1 discharging interface are provided with energy storage modules; the first control circuit unit is also provided with a No. 2 charging interface and a No. 2 discharging interface, and the No. 2 discharging interface is electrically connected with the double-wire cable on the battery clamp;
the second control circuit unit is provided with a No. 3 charging interface matched with the No. 1 discharging interface and a No. 3 discharging interface matched with the No. 2 charging interface, and a voltage conversion circuit board is arranged between the No. 3 charging interface and the No. 3 discharging interface.
Preferably, the energy storage module in the first control circuit unit includes an energy storage electric plate a and an energy storage electric plate B.
Preferably, the energy storage electric board A and the energy storage electric board B are both 12V voltage power supply boards.
Preferably, the number of the charging interface 1, the discharging interface 1, the charging interface 2 and the discharging interface 2 of the first control circuit unit is two, and the plug ends of the charging interface 1, the discharging interface 1, the charging interface 2 and the discharging interface 2 are of an integrated gluing structure.
Preferably, the number of the No. 3 charging interfaces and the number of the No. 3 discharging interfaces of the second control circuit unit are two, and the plug ends of the No. 3 charging interfaces and the No. 3 discharging interfaces are of an integrated gluing structure.
Preferably, a 12V/24V switching circuit or a 12V/25V switching circuit is disposed in the voltage conversion circuit board.
Preferably, a lithium battery protection circuit is distributed in the voltage conversion circuit board.
Has the advantages that: compared with the prior art, the utility model discloses an advantage lies in with positive effect, the utility model discloses a peg graft on first control circuit unit and has laid different switching circuit's second control circuit unit, changes the series connection or the parallel state of first control circuit unit energy storage electroplax A and energy storage electroplax B, can realize 12V 24V, 25/50V switching between the power, has solved the output power supply singleness among the prior art, perhaps output voltage switches inconvenient problem. The lithium battery protection circuit is arranged in the voltage conversion circuit board, so that protection of the emergency starting power supply is effectively realized.
Drawings
Fig. 1 is a schematic view of an overall structure of a voltage switching device for an emergency starting power supply according to the present invention;
fig. 2 is a block diagram of an internal circuit of a voltage switching device for an emergency starting power supply according to the present invention;
fig. 3 is a circuit block diagram of the energy storage module of the voltage switching device for the emergency starting power supply according to the present invention.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Examples
In order to clearly understand the above objects, features and advantages of the present invention, the present invention will be further described with reference to the accompanying drawings and embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.
The embodiment provides a voltage switching device for an emergency starting power supply, which comprises a power supply body 3, a first control circuit unit 1, a second control circuit unit 2 and a storage battery clamp 4 with a double-wire cable; the power supply body 3 is electrically connected with the first control circuit unit 1 through an electric lead;
the first control circuit unit is provided with a No. 1 charging interface 101 and a No. 1 discharging interface 102 which are electrically connected with the power supply body, and an energy storage module is arranged between the No. 1 charging interface 101 and the No. 1 discharging interface 102; the first control circuit unit 11 is further provided with a No. 2 charging interface 103 and a No. 2 discharging interface 104, and the No. 2 discharging interface 104 is electrically connected with a two-wire cable 401 on the battery clamp 4;
the second control circuit unit 2 is provided with a No. 3 charging interface 201 matched with the No. 1 discharging interface 102 and a No. 3 discharging interface 202 matched with the No. 2 charging interface 103, and a voltage conversion circuit board is arranged between the No. 3 charging interface 201 and the No. 3 discharging interface 202.
Further, the energy storage module inside the first control circuit unit 1 includes an energy storage electric board a and an energy storage electric board B.
Furthermore, the energy storage electric board A and the energy storage electric board B are both 12V voltage power supply boards.
Further, the number of the charging interface 1, the discharging interface 1, the charging interface 2 and the discharging interface 2 of the first control circuit unit 1 is two, and the plug ends of the charging interface 1, the discharging interface 1, the charging interface 2 and the discharging interface 2 are of an integrated adhesive structure.
Furthermore, the number of the 2-unit No. 3 charging interfaces and the number of the 3 discharging interfaces of the second control circuit unit are two, and the plug ends of the No. 3 charging interfaces and the No. 3 discharging interfaces are of an integrated gluing structure.
Furthermore, a 12V/24V switching circuit or a 12V/25V switching circuit is arranged in the voltage conversion circuit board.
Furthermore, a lithium battery protection circuit is arranged in the voltage conversion circuit board.
The working principle of the device is that,
firstly, the first control circuit unit charges the energy storage module through the No. 1 charging interface, then the electric energy is transmitted to the second control circuit through the No. 1 discharging interface, the second control circuit performs voltage conversion on the energy storage electric plate A and the energy storage electric plate B in the first control circuit unit, and then the corresponding voltage is output from the No. 2 discharging interface of the first control circuit unit.
In the working principle, the second control circuit unit provided with different switching circuits is inserted into the first control circuit unit to change the serial or parallel state of the energy storage electric plate A and the energy storage electric plate B of the first control circuit unit, so that the switching between 12V/24V and 25/50V power supplies can be realized, and the problems of single output power supply or inconvenient output voltage switching in the prior art are solved. The lithium battery protection circuit is arranged in the voltage conversion circuit board, so that protection of the emergency starting power supply is effectively realized.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (7)
1. A voltage switching device for an emergency starting power supply comprises a power supply body, a first control circuit unit, a second control circuit unit and a storage battery clamp with a double-wire cable; the method is characterized in that: the power supply body is electrically connected with the first control circuit unit through an electric lead;
the first control circuit unit is provided with a No. 1 charging interface and a No. 1 discharging interface which are electrically connected with the power supply body, and the No. 1 charging interface and the No. 1 discharging interface are provided with energy storage modules; the first control circuit unit is also provided with a No. 2 charging interface and a No. 2 discharging interface, and the No. 2 discharging interface is electrically connected with the double-wire cable on the battery clamp;
the second control circuit unit is provided with a No. 3 charging interface matched with the No. 1 discharging interface and a No. 3 discharging interface matched with the No. 2 charging interface, and a voltage conversion circuit board is arranged between the No. 3 charging interface and the No. 3 discharging interface.
2. A voltage switching device for an emergency starting power supply according to claim 1, wherein: the energy storage module in the first control circuit unit comprises an energy storage electric plate A and an energy storage electric plate B.
3. A voltage switching device for an emergency starting power supply according to claim 2, wherein: the energy storage electric board A and the energy storage electric board B are both 12V voltage power supply boards.
4. A voltage switching device for an emergency starting power supply according to claim 1, wherein: the number of the No. 1 interface that charges, No. 1 interface that discharges, No. 2 interface that charges, No. 2 interface that discharges of first control circuit unit is two, and the plug end of the No. 1 interface that charges, No. 1 interface that discharges, No. 2 interface that charges, No. 2 interface that discharges is gluey dress structure as an organic whole.
5. A voltage switching device for an emergency starting power supply according to claim 1, wherein: the number of the No. 3 charging interfaces and the number of the No. 3 discharging interfaces of the second control circuit unit are two, and the plug ends of the No. 3 charging interfaces and the No. 3 discharging interfaces are of an integrated gluing structure.
6. A voltage switching device for an emergency starting power supply according to claim 1, wherein: and a 12V/24V switching circuit or a 25V/50V switching circuit is arranged in the voltage conversion circuit board.
7. A voltage switching device for an emergency starting power supply according to any one of claims 1 or 6, wherein: and a lithium battery protection circuit is distributed in the voltage conversion circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022283002.XU CN213693175U (en) | 2020-10-14 | 2020-10-14 | Voltage switching device for emergency starting power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022283002.XU CN213693175U (en) | 2020-10-14 | 2020-10-14 | Voltage switching device for emergency starting power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213693175U true CN213693175U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022283002.XU Active CN213693175U (en) | 2020-10-14 | 2020-10-14 | Voltage switching device for emergency starting power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213693175U (en) |
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2020
- 2020-10-14 CN CN202022283002.XU patent/CN213693175U/en active Active
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