CN221126205U - Pre-charging loop module of battery pack circuit breaking unit - Google Patents
Pre-charging loop module of battery pack circuit breaking unit Download PDFInfo
- Publication number
- CN221126205U CN221126205U CN202322681356.3U CN202322681356U CN221126205U CN 221126205 U CN221126205 U CN 221126205U CN 202322681356 U CN202322681356 U CN 202322681356U CN 221126205 U CN221126205 U CN 221126205U
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- pcb
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- charge
- relay
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- 238000000034 method Methods 0.000 claims description 2
- JAYCNKDKIKZTAF-UHFFFAOYSA-N 1-chloro-2-(2-chlorophenyl)benzene Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1Cl JAYCNKDKIKZTAF-UHFFFAOYSA-N 0.000 description 20
- 101100084627 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) pcb-4 gene Proteins 0.000 description 20
- 238000000605 extraction Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a pre-charging loop module of a battery pack circuit breaking unit, which comprises a shell, a pre-charging resistor and a pre-charging relay, wherein the pre-charging loop module comprises a battery pack circuit breaking unit body; the pre-charging resistor and the pre-charging relay are respectively accommodated in the shell; the circuit comprises a circuit board, a pre-charging resistor, a pre-charging relay and a high-voltage circuit, wherein the pre-charging resistor and the pre-charging relay are respectively integrated on the circuit board; thereby utilize the PCB board to replace the pencil to realize the pre-charge return circuit intercommunication of battery package circuit breaking unit. According to the utility model, the PCB is arranged to replace the wire harness to realize the conduction of the pre-charging loop, the automatic assembly is convenient, and the wire harness removal can be realized.
Description
Technical Field
The utility model relates to the technical field of relays, in particular to a pre-charging loop module of a battery pack circuit breaking unit.
Background
BDU (Battery Disconnect Unit) battery pack circuit breaking units are specially designed for the inside of battery packs and are also one type of distribution boxes. The BDU is used as a battery module for protecting a lithium battery of an electric automobile, is an important protection module of a high-voltage circuit system of the electric automobile, and is an important component of a whole automobile control system of the electric automobile, and the BDU plays a role in coordinating the function conversion and energy distribution of high-voltage accessories such as a driving motor control system, a battery management system, a charging management system, DC/DC, an electric air conditioner, electric power steering, a braking system and the like. At present, BDU is customized according to the requirements of a vehicle factory, so that it is important to collect the requirements of clients and the electrical performance of the whole vehicle of the clients. The pre-charging loop modules of the battery pack circuit breaking units in the prior art are connected through the wire harness, the wire harness assembly process is complex, automatic production is difficult to achieve, the occupied space of the wire harness is large, and the occupied space of the whole battery pack circuit breaking unit can be increased.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides a pre-charging loop module of a battery pack circuit breaking unit, which is convenient for automatic assembly and can realize harness removal by arranging a PCB to replace a harness to realize the conduction of a pre-charging loop.
The technical scheme adopted for solving the technical problems is as follows: a pre-charging loop module of a battery pack circuit breaking unit comprises a shell, a pre-charging resistor and a pre-charging relay; the pre-charging resistor and the pre-charging relay are respectively accommodated in the shell; the circuit comprises a circuit board, a pre-charging resistor, a pre-charging relay and a high-voltage circuit, wherein the pre-charging resistor and the pre-charging relay are respectively integrated on the circuit board; thereby utilize the PCB board to replace the pencil to realize the pre-charge return circuit intercommunication of battery package circuit breaking unit.
The first interface part of the PCB is a low-voltage connector integrated on the PCB, and the low-voltage connector is connected to the low-voltage plug-in piece connection part of the pre-charging relay in the PCB through a printed circuit on the PCB.
The second interface part of the PCB is a first pre-charging connection point and a second pre-charging connection point which are arranged on the PCB.
The first pre-charge connection point on the PCB is connected to one end connection part of the pre-charge resistor in the PCB through a printed circuit on the PCB, the other end connection part of the pre-charge resistor in the PCB is connected to a high-voltage plug-in piece connection part of the pre-charge relay in the PCB through a printed circuit on the PCB, and the other high-voltage plug-in piece connection part of the pre-charge relay is connected to a second pre-charge connection point on the PCB through a printed circuit on the PCB.
Compared with the prior art, the utility model has the beneficial effects that:
The utility model adopts the pre-charging loop module to further comprise a PCB board, wherein the pre-charging resistor and the pre-charging relay are respectively integrated on the PCB board, a first interface part is arranged on the PCB board for realizing the extraction of the low-voltage plug-in of the relay, and a second interface part for realizing the extraction of the high-voltage loop is also arranged on the PCB board; thereby utilize the PCB board to replace the pencil to realize the pre-charge return circuit intercommunication of battery package circuit breaking unit. According to the structure, the pre-charging resistor and the pre-charging relay are integrated through the PCB, the pre-charging loop is realized, the low-voltage control of the pre-charging relay is led out by the low-voltage plug-in unit, and the high-voltage loop is connected with the high-voltage sampling board end through the second interface part led out by the PCB, so that the pre-charging loop is conducted. Not only is the automatic assembly convenient, but also the harness removal can be realized.
The utility model is described in further detail below with reference to the drawings and examples; the pre-charge loop module of the battery pack breaking unit of the present utility model is not limited to the embodiment.
Drawings
FIG. 1 is a front view of an embodiment of the present utility model;
Fig. 2 is a schematic diagram of cooperation of a pre-charge resistor, a pre-charge relay and a PCB board according to an embodiment of the present utility model.
Detailed Description
An embodiment, referring to fig. 1 to 2, a pre-charge loop module of a battery pack breaking unit of the present utility model includes a housing 1, a pre-charge resistor 2, and a pre-charge relay 3; the pre-charging resistor 2 and the pre-charging relay 3 are respectively accommodated in the shell 1; the circuit breaker also comprises a PCB 4, wherein the pre-charging resistor 2 and the pre-charging relay 3 are respectively integrated on the PCB 4, a first interface part is arranged on the PCB 4 for realizing the extraction of the relay low-voltage plug-in unit, and a second interface part for realizing the extraction of the high-voltage loop is also arranged on the PCB 4; thereby utilize PCB board 4 to replace the pencil to realize the pre-charge return circuit intercommunication of battery package circuit breaking unit.
In this embodiment, the first interface portion of the PCB 4 is a low-voltage connector 5 integrated on the PCB 4, and the low-voltage connector 5 is connected to the low-voltage plug connector 31 of the precharge relay 3 in the PCB 4 through a printed circuit on the PCB 4.
In this embodiment, the second interface portion of the PCB 4 is a first pre-charging connection point 41 and a second pre-charging connection point 42 that are disposed on the PCB 4.
In this embodiment, the first pre-charge connection point 41 on the PCB 4 is connected to the connection point 21 at one end of the pre-charge resistor in the PCB 4 through the printed circuit on the PCB, the connection point 22 at the other end of the pre-charge resistor in the PCB 4 is connected to the connection point 321 at one high voltage plug of the pre-charge relay 3 in the PCB 4 through the printed circuit on the PCB 4, and the connection point 322 at the other high voltage plug of the pre-charge relay 3 is connected to the connection point 42 at the second pre-charge point on the PCB 4 through the printed circuit on the PCB 4.
The utility model relates to a pre-charging loop module of a battery pack circuit breaking unit, which comprises a PCB (printed circuit board) 4, wherein a pre-charging resistor 2 and a pre-charging relay 3 are respectively integrated on the PCB 4, a first interface part is arranged on the PCB 4 for realizing the extraction of a relay low-voltage plug-in unit, and a second interface part for realizing the extraction of a high-voltage loop is also arranged on the PCB 4; thereby utilize PCB board 4 to replace the pencil to realize the pre-charge return circuit intercommunication of battery package circuit breaking unit. According to the structure, the pre-charging resistor and the pre-charging relay are integrated through the PCB, the pre-charging loop is realized, the low-voltage control of the pre-charging relay is led out by the low-voltage plug-in unit, and the high-voltage loop is connected with the high-voltage sampling board end through the second interface part led out by the PCB, so that the pre-charging loop is conducted. Not only is the automatic assembly convenient, but also the harness removal can be realized.
The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or be modified to equivalent embodiments, without departing from the scope of the technology. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.
Claims (4)
1. A pre-charging loop module of a battery pack circuit breaking unit comprises a shell, a pre-charging resistor and a pre-charging relay; the pre-charging resistor and the pre-charging relay are respectively accommodated in the shell; the method is characterized in that: the circuit comprises a circuit board, a pre-charging resistor, a pre-charging relay and a high-voltage circuit, wherein the pre-charging resistor and the pre-charging relay are respectively integrated on the circuit board; thereby utilize the PCB board to replace the pencil to realize the pre-charge return circuit intercommunication of battery package circuit breaking unit.
2. The battery pack circuit breaker unit pre-charge loop module of claim 1, wherein: the first interface part of the PCB is a low-voltage connector integrated on the PCB, and the low-voltage connector is connected to the low-voltage plug-in piece connection part of the pre-charging relay in the PCB through a printed circuit on the PCB.
3. The battery pack circuit breaker unit pre-charge loop module of claim 1, wherein: the second interface part of the PCB is a first pre-charging connection point and a second pre-charging connection point which are arranged on the PCB.
4. A pre-charge loop module of a battery pack circuit breaker unit according to claim 3, wherein: the first pre-charge connection point on the PCB is connected to one end connection part of the pre-charge resistor in the PCB through a printed circuit on the PCB, the other end connection part of the pre-charge resistor in the PCB is connected to a high-voltage plug-in piece connection part of the pre-charge relay in the PCB through a printed circuit on the PCB, and the other high-voltage plug-in piece connection part of the pre-charge relay is connected to a second pre-charge connection point on the PCB through a printed circuit on the PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322681356.3U CN221126205U (en) | 2023-09-28 | 2023-09-28 | Pre-charging loop module of battery pack circuit breaking unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322681356.3U CN221126205U (en) | 2023-09-28 | 2023-09-28 | Pre-charging loop module of battery pack circuit breaking unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221126205U true CN221126205U (en) | 2024-06-11 |
Family
ID=91343254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322681356.3U Active CN221126205U (en) | 2023-09-28 | 2023-09-28 | Pre-charging loop module of battery pack circuit breaking unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221126205U (en) |
-
2023
- 2023-09-28 CN CN202322681356.3U patent/CN221126205U/en active Active
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