CN220985348U - Parallel circuit architecture of battery module - Google Patents
Parallel circuit architecture of battery module Download PDFInfo
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- CN220985348U CN220985348U CN202322437410.XU CN202322437410U CN220985348U CN 220985348 U CN220985348 U CN 220985348U CN 202322437410 U CN202322437410 U CN 202322437410U CN 220985348 U CN220985348 U CN 220985348U
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- conductive sheet
- fixing frame
- parallel circuit
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- 238000012544 monitoring process Methods 0.000 claims abstract description 24
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a parallel circuit architecture of a battery module, which comprises a first battery unit and a second battery unit; the first battery unit comprises a plurality of first battery fixing frames for accommodating battery cores, and the second battery unit comprises a plurality of second battery fixing frames for accommodating battery cores; the first conductive sheets, the second conductive sheets and the third conductive sheets are used for electrically connecting battery cores in the first battery fixing frame and the second battery fixing frame; the voltage monitoring line group comprises a main line connected between a circuit board and an endpoint, a first line branching line connected between one third conducting strip and the endpoint, and a second line branching line connected between the other third conducting strip and the endpoint; the battery cells in the first battery cell and the battery cells in the second battery cell are connected in parallel by being shunted through the line of the voltage monitoring line group.
Description
Technical Field
The present utility model relates to a parallel circuit architecture of a battery module, and more particularly, to a parallel circuit architecture of a plurality of battery cells in a battery module with a voltage monitor line set.
Background
In recent years, with the development of battery technology, electronic devices such as electric vehicles, servers, or electric storage devices, etc., which employ battery modules as power supply sources, are becoming more and more widespread in the market. A significant number of battery cells may also be provided within the battery module to provide the power required by the device.
The battery module comprises a battery fixing frame, a conducting strip and a plurality of battery cells. The battery fixing frame is used for accommodating and fixing a plurality of battery cells, and the conducting plate is used for electrically connecting the plurality of battery cells.
Conventionally, in order to realize parallel connection of a plurality of battery cells of a battery module, a parallel circuit is often designed by using a conductive sheet and/or a circuit board. However, to meet the number of battery cells provided in different battery modules, the shape of the conductive sheet, the conductive path and/or the layout circuit on the circuit board must be customized to the corresponding design, so that the plurality of battery cells of the battery module can be connected in parallel according to the requirements of use.
However, the customized design of the conductive sheets and/or the circuit boards not only increases the cost of the circuit design or the mold opening for the battery module, but also can be applied to the battery modules with the corresponding battery core specification number.
Disclosure of utility model
An objective of the present utility model is to provide a parallel circuit architecture of a battery module, which includes a plurality of battery cells, at least one first battery cell, at least one second battery cell, and at least one voltage monitoring line set. The battery core comprises a first end and a second end. The first battery unit comprises a plurality of first battery fixing frames for accommodating battery cells. The second battery unit comprises a plurality of second battery fixing frames for accommodating battery cells. The plurality of first conductive plates are respectively arranged on the first battery fixing frame and the second battery fixing frame and are respectively used for connecting the first ends of the plurality of adjacent battery cores. The plurality of second conductive sheets are respectively arranged on the first battery fixing frame and the second battery fixing frame and are respectively used for connecting the second ends of the plurality of adjacent battery cores. The plurality of third conductive sheets are respectively arranged on the first battery fixing frame and the second battery fixing frame, one part of each third conductive sheet is connected with the first ends of the plurality of adjacent battery cores, and the other part of each third conductive sheet is connected with the second ends of the plurality of adjacent battery cores; the voltage monitoring line set comprises a main line, a first line branching line and a second line branching line. One end of the main line is connected to a circuit board, one end of the first line branching line is connected to a third conductive sheet corresponding to the first battery fixing frame, and one end of the second line branching line is connected to a third conductive sheet corresponding to the second battery fixing frame. The other end of the main line, the other end of the first line branching line and the other end of the second line branching line are commonly connected to an endpoint, and an endpoint voltage is generated at the endpoint; the battery cells in the first battery cell and the battery cells in the second battery cell are connected in parallel by being shunted through the line of the voltage monitoring line group.
In order to achieve the above object, the present utility model provides a parallel circuit architecture of a battery module, comprising: each battery core comprises a first end and a second end; at least one first battery unit, each first battery unit comprises: the battery fixing frames are respectively provided with a plurality of first battery fixing frames, and each first battery fixing frame is accommodated with a corresponding battery core; at least one second battery unit, each second battery unit includes: the plurality of second battery fixing frames are used for accommodating corresponding battery cores; the first conductive sheets are respectively arranged on the first battery fixing frame and the second battery fixing frame and are respectively used for connecting the first ends of the adjacent battery cores; the plurality of second conductive sheets are respectively arranged on the first battery fixing frame and the second battery fixing frame and are respectively used for connecting the second ends of a plurality of adjacent battery cores; the plurality of third conductive sheets are respectively arranged on the first battery fixing frame and the second battery fixing frame, one part of each third conductive sheet is connected with the first ends of the plurality of adjacent battery cores, and the other part of each third conductive sheet is connected with the second ends of the plurality of adjacent battery cores; each voltage monitoring group comprises a main line, a first line branching line and a second line branching line; one end of the main line is connected to a circuit board, one end of the first line branching line is connected to a corresponding third conducting plate on the first battery fixing frame, one end of the second line branching line is connected to a corresponding third conducting plate on the second battery fixing frame, the other end of the main line, the other end of the first line branching line and the other end of the second line branching line are commonly connected to an endpoint, and the endpoint generates an endpoint voltage; the battery cells in the first battery cell and the battery cells in the second battery cell are connected in parallel by being shunted through the line of the voltage monitoring line group.
In an embodiment of the utility model, the first end of the battery cell is the positive end, and the second end of the battery cell is the negative end.
In an embodiment of the utility model, the display device further includes a plurality of positive electrode wires, wherein one end of each positive electrode wire is connected to a positive power layout area of the circuit board, and the other end of each positive electrode wire is connected to the corresponding first conductive sheet.
In an embodiment of the utility model, the first conductive sheet includes at least one first fixing base, and the other end of the positive electrode wire is welded on the first fixing base.
In an embodiment of the utility model, the circuit board further includes a plurality of negative electrode wires, each of which is connected between a negative electrode layout area of the circuit board and the corresponding second conductive sheet.
In an embodiment of the utility model, the second conductive sheet includes at least one second fixing seat, and the other end of the negative electrode wire is welded on the second fixing seat.
In an embodiment of the utility model, the third conductive sheet includes at least one third fixing seat, and one end of the first circuit branch line is welded on the third fixing seat.
In an embodiment of the utility model, the third conductive sheet includes at least one third fixing seat, and one end of the second circuit branch line is welded on the third fixing seat.
Drawings
Fig. 1 is a perspective view of an embodiment of a battery module according to the present utility model.
Fig. 2 is a front view of one embodiment of the first and second battery cells of the present utility model.
Fig. 3 is a rear view of an embodiment of the first and second battery cells of the present utility model.
Fig. 4 is a perspective view of a further embodiment of a battery module according to the present utility model.
Fig. 5 is a front view of a further embodiment of the first and second battery cells of the present utility model.
Fig. 6 is a rear view of a further embodiment of the first and second battery cells of the present utility model.
Reference numerals illustrate: 10-a circuit board; 11-wire connectors; 13-positive power layout area; 131-positive line; 15-a negative power supply layout area; 151-negative lines; 20-battery cells; 30-a first battery cell; 31-a first battery holder; 41-a first conductive sheet; 411-a first fixing seat; 42-a second conductive sheet; 421-the second fixing seat; 43-a third conductive sheet; 431-a third fixing seat; 50-a second battery cell; 51-a second battery holder; 70-voltage monitoring line group; 701-end point; 702-end points; 703-end points; 71-a main line; 73-a first line split; 75-a second line split.
Detailed Description
Please refer to fig. 1, 2 and 3, which are a perspective view of an embodiment of the battery module of the present utility model, a front view of an embodiment of the first battery cell and the second battery cell of the present utility model, and a rear view of an embodiment of the first battery cell and the second battery cell of the present utility model, respectively. As shown in fig. 1, 2 and 3, the battery module of the present utility model includes a circuit board 10, a plurality of battery cells 20, at least one first battery unit 30, at least one second battery unit 50, at least one first conductive sheet 41, at least one second conductive sheet 42 and at least one third conductive sheet 43.
The circuit board 10 includes a wire connector 11, a positive power layout area 13, and a negative power layout area 15. The battery cell 20 includes a first end and a second end. The first end of the battery cell 20 is the positive end, and the second end of the battery cell 20 is the negative end.
The first battery unit 30 may also be a 2P2S (two-to-two battery cells 20) battery unit, and includes a plurality of first battery holders 31. Each of the first battery holders 31 is configured to receive one of the battery cells 20. The second battery unit 50 may also be a 2P2S (two-to-two battery cells 20) battery unit, and includes a plurality of second battery holders 51. Each of the second battery holders 51 is configured to receive one of the battery cells 20.
The first conductive sheet 41 is disposed on one side of the first battery holder 31 of the first battery cell 30. In the first battery holder 31, the first conductive sheet 41 is used to connect the first ends of a plurality of adjacent battery cells 20, for example, the first conductive sheet 41 connects the positive ends of two adjacent battery cells 20 in parallel. The second conductive sheet 42 is disposed on one side of the first battery holder 31 of the first battery cell 30. In the first battery holder 31, the second conductive sheet 42 is used to connect the second ends of the adjacent battery cells 20, for example, the second conductive sheet 42 connects the negative ends of the adjacent two battery cells 20 in parallel. The third conductive sheet 43 is disposed on one side of the first battery holder 31 of the first battery cell 30. In the first battery holder 31, a part of the third conductive sheet 43 connects the first ends of the plurality of adjacent battery cells 20 and another part connects the second ends of the plurality of adjacent battery cells 20, for example: a portion of the third conductive sheet 43 connects the positive ends of two adjacent battery cells 20 and another portion connects the negative ends of two adjacent battery cells 20 such that two groups of two parallel battery cells 20 of the first battery cell 30 are connected in series together.
Likewise, the first conductive sheet 41 is disposed on one side of the second battery holder 51 of the second battery unit 50. In the second battery holder 51, the first conductive sheet 41 is used to connect the first ends of a plurality of adjacent battery cells 20, for example, the first conductive sheet 41 connects the positive ends of two adjacent battery cells 20 in parallel. The second conductive sheet 42 is disposed on one side of the second battery holder 51 of the second battery unit 50. In the second battery holder 51, the second conductive sheet 42 is used to connect the second ends of the plurality of adjacent battery cells 20, for example, the second conductive sheet 42 connects the negative ends of the adjacent two battery cells 20 in parallel. The third conductive sheet 43 is disposed on one side of the second battery holder 51 of the second battery unit 50. In the second battery holder 51, a part of the third conductive sheet 43 connects the first ends of the plurality of adjacent battery cells 20 and another part connects the second ends of the plurality of adjacent battery cells 20, for example: a portion of the third conductive sheet 43 connects the positive ends of two adjacent battery cells 20 and another portion connects the negative ends of two adjacent battery cells 20 such that two groups of two parallel battery cells 20 of the second battery cell 50 are connected in series.
The battery module further includes a plurality of positive electrode wires 131 and a plurality of negative electrode wires 151. One end of each positive electrode line 131 is connected to a positive power supply layout region 13 of the circuit board 10, and the other end of each positive electrode line 131 is connected to the first conductive sheet 41 provided on the first battery holder 31 or the first conductive sheet 41 provided on the second battery holder 51. One end of each negative electrode line 151 is connected to a negative power supply layout area 15 of the circuit board 10, and the other end of each negative electrode line 151 is connected to the second conductive sheet 42 provided on the first battery holder 31 or the second conductive sheet 42 provided on the second battery holder 51.
The voltage monitoring line set 70 includes a main line 71, a first line branching line 73, and a second line branching line 75. One end of the main line 71 is connected to the line connector 11 of the circuit board 10, one end of the first line branching line 73 is connected to the third conductive sheet 43 provided on the first battery holder 31 of the first battery unit 30, and one end of the second line branching line 75 is connected to the third conductive sheet 43 provided on the second battery holder 51 of the second battery unit 50. The other end of the main line 71, the other end of the first line branching line 73, and the other end of the second line branching line 75 are commonly connected to one end 701. The terminal 701 generates a terminal voltage V1. The first battery cell 30 and the second battery cell 50 have the same terminal voltage V1.
Thus, the battery cells 20 in the first battery unit 30 and the battery cells 20 in the second battery unit 50 can be connected in parallel through the line shunt of the voltage monitoring line group 70 to form a 4P2S battery module. The battery module of the present utility model can meet the parallel connection requirement of multiple groups of battery cells in a line splitting manner of the voltage monitoring line 70, which is simple and easy to implement, and does not need to change the shape of the conductive sheet, the design of the conductive path and/or the layout circuit of the circuit board, so that the production cost of the battery module can be reduced.
In addition, the first conductive sheet 41 includes a first fixing base 411. The other end of the positive line 131 is welded to the first fixing base 411 of the first conductive sheet 41. The second conductive sheet 42 includes a second fixing seat 421. The other end of the negative electrode wire 151 is welded to the second fixing seat 421 of the second conductive sheet 42. The third conductive sheet 43 includes a third fixing base 431. One end of the first line branching line 73 or one end of the second line branching line 75 is welded to the third fixing seat 431 of the corresponding third conductive sheet 43.
Please refer to fig. 4, 5 and 6, which are a perspective view of another embodiment of the battery module of the present utility model, a front view of another embodiment of the first battery cell and the second battery cell of the present utility model, and a rear view of another embodiment of the first battery cell and the second battery cell of the present utility model, respectively. As shown in fig. 4, 5 and 6, the first battery cell 30 and the second battery cell 50 of the present embodiment may be 2P4S (two-parallel four-string battery cells 20) battery cells.
The first conductive sheet 41 is disposed on one side of the first battery holder 31 of the first battery cell 30. In the first battery holder 31, the first conductive sheet 41 is used to connect the first ends of a plurality of adjacent battery cells 20, for example, the first conductive sheet 41 connects the positive ends of two adjacent battery cells 20 in parallel. The second conductive sheet 42 is disposed on one side of the first battery holder 31 of the first battery cell 30. In the first battery holder 31, the second conductive sheet 42 is used to connect the second ends of the adjacent battery cells 20, for example, the second conductive sheet 42 connects the negative ends of the adjacent two battery cells 20 in parallel. The third conductive sheets 43 are disposed on both sides of the first battery holder 31 of the first battery cell 30, respectively. In the first battery holder 31, a part of the third conductive sheet 43 connects the first ends of the plurality of adjacent battery cells 20 and another part connects the second ends of the plurality of adjacent battery cells 20, for example: a portion of the third conductive sheet 43 connects the positive ends of two adjacent battery cells 20 and another portion connects the negative ends of two adjacent battery cells 20 to connect four groups of two parallel battery cells 20 of the first battery cell 30 together in series.
Likewise, the first conductive sheet 41 is disposed on one side of the second battery holder 51 of the second battery unit 50. In the second battery holder 51, the first conductive sheet 41 is used to connect the first ends of a plurality of adjacent battery cells 20, for example, the first conductive sheet 41 connects the positive ends of two adjacent battery cells 20 in parallel. The second conductive sheet 42 is disposed on one side of the second battery holder 51 of the second battery unit 50. In the second battery holder 51, the second conductive sheet 42 is used to connect the second ends of the plurality of adjacent battery cells 20, for example, the second conductive sheet 42 connects the negative ends of the adjacent two battery cells 20 in parallel. The third conductive sheets 43 are disposed on both sides of the second battery holder 51 of the second battery unit 50, respectively. In the second battery holder 51, a part of the third conductive sheet 43 connects the first ends of the plurality of adjacent battery cells 20 and another part connects the second ends of the plurality of adjacent battery cells 20, for example: a part of the third conductive sheet 43 connects the positive ends of two adjacent battery cells 20 and another part connects the negative ends of two adjacent battery cells 20 to connect four groups of two parallel battery cells 20 of the second battery cell 50 together in series.
As in the previous embodiment, one end of each positive electrode line 131 is connected to the positive power supply layout region 13 of the circuit board 10, and the other end of each positive electrode line 131 is connected to the first conductive sheet 41 provided on the first battery holder 31 or the first conductive sheet 41 provided on the second battery holder 51; one end of each negative electrode line 151 is connected to a negative power supply layout area 15 of the circuit board 10, and the other end of each negative electrode line 151 is connected to the second conductive sheet 42 provided on the first battery holder 31 or the second conductive sheet 42 provided on the second battery holder 51.
In addition, in the present embodiment, the battery module includes three voltage monitoring lines 70. The main line 71 of each group of voltage monitoring lines 70 has one end connected to the line connector 11 of the circuit board 10, the first line branching line 73 of each group of voltage monitoring lines 70 has one end connected to the corresponding third conductive sheet 43 provided on the first battery cell 30, and the second line branching line 75 of each group of voltage monitoring lines 70 has one end connected to the corresponding third conductive sheet 43 provided on the second battery cell 50. The other end of the main line 71, the other end of the first line branching line 73, and the other end of the second line branching line 75 of each set of voltage monitoring lines 70 are commonly connected to the corresponding terminals 701. In the present embodiment, the terminal 701 of the first set of voltage monitor lines 70 generates a terminal voltage V1, the terminal 702 of the second set of voltage monitor lines 70 generates a terminal voltage V2, and the terminal 703 of the third set of voltage monitor lines 70 generates a terminal voltage V3.
Thus, through the arrangement of the three voltage monitoring lines 70, the battery cells 20 of the first battery cell 30 in the 2P4S form can be connected in parallel with the battery cells 20 of the second battery cell 50 in the 2P4S form by using the line split design of the three voltage monitoring lines 70 to form a battery module in the 4P4S form.
In the present utility model, the battery cells 30, 50 in the form of 2P2S or 2P4S are exemplified. However, in practical applications, the voltage monitoring line set 70 may be applied to the parallel connection of the battery units 30, 50 in different forms, such as the voltage monitoring line set 70 being applied to the parallel connection of the battery units 30, 50 in the form of 4P 4S; alternatively, the voltage monitoring line 70 is applied to the parallel connection of two different types of battery cells 30 and 50, such as a first battery cell 30 being a 2P2S type battery cell and a second battery cell 50 being a 4P4S type battery cell, and the voltage monitoring line 70 is applied to the parallel connection of a first battery cell 30 being a 2P2S type and a second battery cell 50 being a 4P4S type battery cell.
The foregoing description is only one preferred embodiment of the present utility model and is not intended to limit the scope of the utility model, i.e., all equivalent variations and modifications in shape, construction, characteristics and spirit as defined in the claims are intended to be included in the scope of the present utility model.
Claims (8)
1. A parallel circuit architecture for a battery module, comprising:
Each battery core comprises a first end and a second end;
At least one first battery unit, each first battery unit includes:
the battery fixing frames are respectively provided with a plurality of first battery fixing frames, and each first battery fixing frame is accommodated with a corresponding battery core;
At least one second battery unit, each second battery unit includes:
the battery fixing frames are respectively provided with a plurality of second battery fixing frames, and each second battery fixing frame is accommodated with a corresponding battery core;
The first conductive sheets are respectively arranged on the first battery fixing frame and the second battery fixing frame and are respectively used for connecting the first ends of a plurality of adjacent battery cores;
the second conductive sheets are respectively arranged on the first battery fixing frame and the second battery fixing frame and are respectively used for connecting the second ends of the adjacent battery cores;
The plurality of third conductive sheets are respectively arranged on the first battery fixing frame and the second battery fixing frame, one part of each third conductive sheet is connected with the first ends of a plurality of adjacent battery cores, and the other part of each third conductive sheet is connected with the second ends of a plurality of adjacent battery cores;
Each voltage monitoring line group comprises a main line, a first line branching line and a second line branching line; one end of the main line is connected to a circuit board, one end of the first line branching line is connected to the third conductive sheet corresponding to the first battery fixing frame, one end of the second line branching line is connected to the third conductive sheet corresponding to the second battery fixing frame, and the other end of the main line, the other end of the first line branching line and the other end of the second line branching line are commonly connected to an endpoint, and the endpoint generates an endpoint voltage; the battery cells in the first battery cell and the battery cells in the second battery cell are connected in parallel by line splitting of the voltage monitoring line group.
2. The parallel circuit architecture of a battery module of claim 1, wherein the first end of the battery cell is a positive end and the second end of the battery cell is a negative end.
3. The parallel circuit architecture of claim 1, further comprising a plurality of positive lines, each positive line having one end connected to a positive power layout area of the circuit board and another end connected to the corresponding first conductive sheet.
4. The parallel circuit architecture of claim 3, wherein the first conductive sheet comprises at least one first fixing base, and the other end of the positive line is welded on the first fixing base.
5. The parallel circuit architecture of claim 1, further comprising a plurality of negative lines, each negative line connected between a negative power layout area of the circuit board and the corresponding second conductive sheet.
6. The parallel circuit architecture of claim 5, wherein the second conductive sheet comprises at least one second fixing base, and the other end of the negative electrode wire is welded on the second fixing base.
7. The parallel circuit architecture of claim 1, wherein the third conductive sheet comprises at least one third fixing base, and one end of the first circuit branch line is welded on the third fixing base.
8. The parallel circuit architecture of claim 1, wherein the third conductive sheet comprises at least one third fixing base, and one end of the second circuit shunt wire is welded on the third fixing base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322437410.XU CN220985348U (en) | 2023-09-08 | 2023-09-08 | Parallel circuit architecture of battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322437410.XU CN220985348U (en) | 2023-09-08 | 2023-09-08 | Parallel circuit architecture of battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220985348U true CN220985348U (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322437410.XU Active CN220985348U (en) | 2023-09-08 | 2023-09-08 | Parallel circuit architecture of battery module |
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| Country | Link |
|---|---|
| CN (1) | CN220985348U (en) |
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2023
- 2023-09-08 CN CN202322437410.XU patent/CN220985348U/en active Active
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