CN214750737U - Multi-string battery pack sampling disconnection detection circuit - Google Patents
Multi-string battery pack sampling disconnection detection circuit Download PDFInfo
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- CN214750737U CN214750737U CN202120812199.3U CN202120812199U CN214750737U CN 214750737 U CN214750737 U CN 214750737U CN 202120812199 U CN202120812199 U CN 202120812199U CN 214750737 U CN214750737 U CN 214750737U
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- disconnection detection
- constant current
- relay
- detection circuit
- disconnection
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Abstract
The utility model discloses a many cluster group battery sampling broken string detection circuitry, including disconnection detection circuitry and plug-in relay, disconnection detection circuitry includes constant current circuit, constant current circuit provides the constant current circuit that is used for the disconnection to detect through the pencil, disconnection detection circuitry determines the pencil through the output voltage who monitors constant current whether there is the condition of disconnection, arranges disconnection detection circuitry and plug-in relay together in the relay. The utility model has the advantages that: the control circuit alternately performs supply and stop of the current for disconnection detection supplied from the current circuit, so that power consumption required for disconnection detection can be significantly reduced, and the disconnection detection circuit determines whether there is a disconnection of the wire harness by monitoring the output voltage of the constant current, is simple and quick, and is easy to use and popularize.
Description
Technical Field
The utility model relates to a detection circuitry technical field specifically indicates a many cluster group battery sampling broken string detection circuitry.
Background
With the wider application of the battery, the number of the serial connection sections of the battery is higher, and the requirement on the cost is higher. In practical application, a certain voltage-saving sampling flat cable in the battery sampling flat cable is disconnected frequently, a certain sampling voltage line in the lithium battery voltage sampling flat cable is disconnected, and the battery cannot be monitored due to disconnection of the sampling line, so that various accidents can be caused, and even safety accidents can occur.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to solve above-mentioned problem, provide a many cluster group battery sampling broken string detection circuitry with broken string detects reduction potential safety hazard.
In order to solve the technical problem, the utility model provides a technical scheme does: a multi-string battery pack sampling disconnection detection circuit comprises a disconnection detection circuit and a plug-in relay, wherein the disconnection detection circuit comprises a constant current circuit, the constant current circuit provides a constant current circuit for disconnection detection through a wire harness, the disconnection detection circuit determines whether the wire harness is disconnected or not by monitoring the output voltage of the constant current, and the disconnection detection circuit and the plug-in relay are arranged in the relay.
Compared with the prior art, the utility model the advantage lie in: the product control circuit of the utility model alternately executes the supply and stop of the current for disconnection detection provided by the current circuit, thereby obviously reducing the power consumption required by disconnection detection, and the disconnection detection circuit determines whether the wire harness has the disconnection condition by monitoring the output voltage of the constant current, and is simple, rapid and easy to use and popularize.
The plug-in relay and the disconnection detection circuit are integrally formed and provided with contact circuits, and the constant current circuit and the disconnection detection circuit are arranged in the same relay box.
The constant current circuit alternately performs supply and stop of a constant current for disconnection detection supplied from the constant current.
The connection terminals of the external connection of the disconnection detection circuit are arranged the same as the connection terminals for the external connection of the plug-in relay.
The connection terminal for external connection to which the disconnection detecting circuit and the relay are electrically connected is provided similarly to the connection terminal for external connection of the plug-in relay.
Drawings
Fig. 1 is a schematic structural diagram of the sampling disconnection detection circuit for multiple strings of battery packs.
As shown in the figure: 1. and a disconnection detection circuit 2, an insertion relay 3, a constant current circuit 5 and a relay.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the multi-string battery pack sampling disconnection detection circuit comprises a disconnection detection circuit 1 and a plug-in relay 2, wherein the disconnection detection circuit 1 comprises a constant current circuit 3, the constant current circuit 3 provides constant current for disconnection detection through a wire harness, the disconnection detection circuit 1 determines whether the wire harness is disconnected or not by monitoring output voltage of the constant current, and a disconnection detection unit 1 and the plug-in relay 2 are arranged in a relay 5.
The plug-in relay 2 and the disconnection detection circuit 1 are integrally formed and provided with contact circuits, and the constant current circuit 3 and the disconnection detection circuit 1 are arranged in the same relay box.
The constant current circuit 3 alternately performs supply and stop of a constant current for disconnection detection supplied from the constant current.
The connection terminals for the external connection of the disconnection detection circuit 1 are arranged identically to the connection terminals for the external connection of the plug-in relay 2.
The connection terminals for external connection to which the disconnection detecting circuit 1 and the relay 5 are electrically connected are provided similarly to the connection terminals for external connection of the plug-in relay 2.
When the utility model is implemented, the product control circuit of the utility model alternately executes the supply and stop of the current for disconnection detection provided by the current circuit, thereby obviously reducing the power consumption required by disconnection detection, and the disconnection detection circuit 1 determines whether the wire harness has the disconnection condition by monitoring the output voltage of the constant current, and is simple and rapid and easy to use and popularize.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. The utility model provides a many cluster group battery sampling broken string detection circuitry which characterized in that: the disconnection detection circuit comprises a constant current circuit which provides a constant current for disconnection detection through a wire harness, and a plug-in relay which determines whether the wire harness is disconnected by monitoring an output voltage of the constant current and is arranged in the relay together with the plug-in relay.
2. The multi-string battery pack sampling disconnection detection circuit according to claim 1, wherein: the plug-in relay and the disconnection detection circuit are integrally formed and provided with contact circuits, and the constant current circuit and the disconnection detection circuit are arranged in the same relay box.
3. The multi-string battery pack sampling disconnection detection circuit according to claim 1, wherein: the constant current circuit alternately performs supply and stop of a constant current for disconnection detection supplied from the constant current.
4. The multi-string battery pack sampling disconnection detection circuit according to claim 1, wherein: the connection terminals of the external connection of the disconnection detection circuit are arranged the same as the connection terminals for the external connection of the plug-in relay.
5. The multi-string battery pack sampling disconnection detection circuit according to claim 1, wherein: the connection terminal for external connection to which the disconnection detecting circuit and the relay are electrically connected is provided similarly to the connection terminal for external connection of the plug-in relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120812199.3U CN214750737U (en) | 2021-04-20 | 2021-04-20 | Multi-string battery pack sampling disconnection detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120812199.3U CN214750737U (en) | 2021-04-20 | 2021-04-20 | Multi-string battery pack sampling disconnection detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214750737U true CN214750737U (en) | 2021-11-16 |
Family
ID=78611478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120812199.3U Active CN214750737U (en) | 2021-04-20 | 2021-04-20 | Multi-string battery pack sampling disconnection detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214750737U (en) |
-
2021
- 2021-04-20 CN CN202120812199.3U patent/CN214750737U/en active Active
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