CN216958416U - Output-stage conducting bar and battery module thereof - Google Patents

Output-stage conducting bar and battery module thereof Download PDF

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Publication number
CN216958416U
CN216958416U CN202123270414.0U CN202123270414U CN216958416U CN 216958416 U CN216958416 U CN 216958416U CN 202123270414 U CN202123270414 U CN 202123270414U CN 216958416 U CN216958416 U CN 216958416U
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China
Prior art keywords
bar
copper bar
aluminum
conductive
copper
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Active
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CN202123270414.0U
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Chinese (zh)
Inventor
曹辉
陈英旗
曹楷
侯敏
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Shanghai Ruipu Energy Co Ltd
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Shanghai Ruipu Energy Co Ltd
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Priority to CN202123270414.0U priority Critical patent/CN216958416U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model provides an output-stage conductive bar and a battery module thereof, which relate to the technical field of batteries, wherein the battery module comprises the output-stage conductive bar, the output-stage conductive bar comprises a conductive copper bar component and a conductive aluminum bar component, and the conductive copper bar component is connected with the conductive aluminum bar component; the conductive copper bar assembly comprises a copper bar and a copper bar welding sheet, and one side of the copper bar is connected with the copper bar welding sheet; the conductive aluminum bar assembly comprises an aluminum bar and an aluminum bar welding sheet, wherein one side of the aluminum bar is connected with the aluminum bar welding sheet; the copper bar welding piece is connected with the aluminum bar welding piece in parallel, and the copper bar is parallel to the aluminum bar. According to the utility model, through the integrated output-stage conducting bar, the size of the battery module in the height direction is reduced, more space is reserved, the processing difficulty of the upper cover plate and the wiring harness isolation plate can be reduced, the structure is more stable and reliable, and unnecessary production cost is reduced; the overcurrent area of the current can be increased through the pressure edge part, the temperature rise is reduced, the temperature of the contact surface of the high-voltage support is prevented from being increased, and the stability of the battery module is improved.

Description

Output-level conducting bar and battery module thereof
Technical Field
The utility model relates to the technical field of batteries, in particular to an output-stage conducting bar and a battery module thereof.
Background
In the prior art, the output-stage conducting bar of the battery module generally needs copper-aluminum switching so as to improve the overcurrent capacity of the output-stage conducting bar, the copper-aluminum switching mode is adopted to superpose the copper bar on the aluminum bar in the H direction through a corresponding welding method, the copper-aluminum switching structure can increase the space in the height direction of the whole module, but the dimension of the module in the height direction is controlled more tightly, if the copper-aluminum switching mode adopted by the output-stage conducting bar is the up-down superposition mode, the space in the height direction can be tense, other part structure changes and processing mode changes can be caused, the cost is increased, the structure is unreliable, and the H-direction superposed copper-aluminum switching mode can be adopted.
Through the search discovery of prior art patent literature, chinese utility model patent publication No. CN210984308U discloses a high conductivity aluminum alloy conductor bar, belongs to high-tension apparatus and accessory technical field, effectively solves the problem that can not carry out distance control, the conductivity is low, awkward. Including first electrically conductive row, the electrically conductive row of second, fixing bolt and electrically conductive row sleeve pipe, first electrically conductive row and the electrically conductive row of second are the electrically conductive row of aluminum alloy on cladding copper layer, first electrically conductive row includes current conducting plate and cardboard, current conducting plate and cardboard integrated into one piece, the current conducting plate is thick in the cardboard, the current conducting plate equipartition has the connecting hole, cardboard side equipartition screw thread is perforated, there are a plurality of connecting holes on the electrically conductive row one end face of second, be equipped with the draw-in groove on the electrically conductive row other end of second and the first electrically conductive row contact face, draw-in groove and cardboard adaptation, all there is the spout on the electrically conductive row both sides face of second, the spout end has fixing bolt, fixing bolt head inlays in the spout bottom, electrically conductive row sleeve pipe suit is on the electrically conductive row of second, there is the slider on the electrically conductive row sleeve pipe medial surface, be equipped with heat abstractor on the sheathed tube wall of electrically conductive row. The utility model provides an output stage conducting bar and a battery module thereof, which solve the problem of space shortage of the battery module and the like. Therefore, the method disclosed by the document and the utility model belongs to different inventive concepts.
SUMMERY OF THE UTILITY MODEL
In view of the defects in the prior art, an object of the present invention is to provide an output stage conductive bar and a battery module thereof.
The utility model provides an output-stage conducting bar which comprises a conducting copper bar assembly and a conducting aluminum bar assembly, wherein the conducting copper bar assembly is connected with the conducting aluminum bar assembly;
the conductive copper bar assembly comprises a copper bar and a copper bar welding sheet, and one side of the copper bar is connected with the copper bar welding sheet;
the conductive aluminum bar assembly comprises an aluminum bar and an aluminum bar welding sheet, wherein one side of the aluminum bar is connected with the aluminum bar welding sheet;
the copper bar welding piece is connected with the aluminum bar welding piece in parallel, and the copper bar is parallel to the aluminum bar.
In some embodiments, the copper row solder tabs and the aluminum row solder tabs are soldered in the L direction.
In some embodiments, the copper bar solder tabs and the aluminum row solder tabs face opposite directions, with the copper bar solder tabs facing upward and the aluminum row solder tabs facing downward.
In some embodiments, the conductive copper bar assembly is L-shaped, the copper bar and the copper bar welding piece are integrally formed, and the joint of the copper bar and the copper bar welding piece is processed by chamfering.
In some embodiments, the aluminum row welding pieces are L-shaped, and the aluminum row welding pieces are subjected to chamfering treatment.
In some embodiments, the copper bar welding piece further comprises a pressing edge part, and the pressing edge part is connected to the copper bar welding piece.
In some embodiments, the edge pressing part is formed by pressing copper bar welding sheets, and the edge pressing part and the copper bar welding sheets are respectively arranged between the copper bar and the aluminum bar along the vertical direction.
The utility model also provides a battery module comprising the output-stage conductive bar, and the battery module further comprises a battery core, a wiring harness isolation plate and a high-voltage support, wherein one end of the output-stage conductive bar is connected between the battery core and the wiring harness isolation plate, and the other end of the output-stage conductive bar is connected to the high-voltage support.
In some embodiments, the battery further comprises a cover plate, the cover plate is connected to the top of the wire harness isolation plate, the cover plate is connected to the high-voltage support in a sealing manner, and the battery cell, the wire harness isolation plate and the output-stage conducting bar are connected to a closed space formed by the high-voltage support and the cover plate.
In some embodiments, the plurality of cells are connected in series or in parallel through the output stage conductive bar.
Compared with the prior art, the utility model has the following beneficial effects:
(1) according to the utility model, the size of the battery module in the height direction is reduced through the integrated output stage conducting bar, more space is reserved for the upper cover plate and the wiring harness isolation plate, the processing difficulty of the upper cover plate and the wiring harness isolation plate can be reduced, the structure is more stable and reliable, and unnecessary production cost is reduced;
(2) according to the utility model, the edge pressing part can increase the overcurrent area of current, reduce temperature rise, avoid increasing the temperature of the contact surface of the high-voltage support and improve the stability of the battery module.
Drawings
Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram according to a first embodiment;
FIG. 2 is a schematic structural diagram of the second embodiment;
fig. 3 is a schematic structural diagram of the third embodiment.
Reference numbers in the figures:
the structure comprises a conductive copper bar assembly 100, a copper bar 1, a copper bar welding sheet 11, a conductive aluminum bar assembly 200, an aluminum bar 2, an aluminum bar welding sheet 21, an output-stage conductive bar 300, a crimping part 3, a battery cell 4, a wire harness isolation plate 5, a high-voltage support 6 and a cover plate 7.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the utility model.
Example 1
The output-stage conducting bar provided by the utility model comprises a conducting copper bar assembly 100 and a conducting aluminum bar assembly 200, wherein the conducting copper bar assembly 100 and the conducting aluminum bar assembly 200 are integrally formed in the L direction by welding, as shown in fig. 1. The copper bar welding piece 11 on the conductive copper bar assembly 100 is welded with the aluminum bar welding piece 21 on the conductive aluminum bar assembly 200 in the L direction in parallel, and the size of the module in the height direction H can be reduced by the output-level conductive bar integrated in the L direction. Preferably, the copper bar welding piece 11 and the aluminum bar welding piece 21 face oppositely, the copper bar welding piece 11 faces upwards, and the aluminum bar welding piece 21 faces downwards. Wherein, copper bar welding lug 11 is between copper bar 1, aluminium row 2 along vertical direction position, and is more specific, and copper bar welding lug 11 highly is no longer than aluminium row 2's surface.
Conductive copper bar subassembly 100 is the L type, and conductive copper bar subassembly 100 includes copper bar 1 and copper bar welded piece 11, and copper bar welded piece 11 is connected to 1 one side of copper bar, and copper bar 1 and the shaping of 11 integral types of copper bar welded piece adopt the chamfer to handle with 11 junctions of copper bar welded piece, copper bar 1.
The conductive aluminum bar assembly 200 includes an aluminum bar 2 and an aluminum bar welding tab 21, and the aluminum bar welding tab 21 is connected to one side of the aluminum bar 2. The aluminum row welding sheets 21 are L-shaped, and the aluminum row welding sheets 21 are subjected to chamfering treatment. The copper bar 1 is parallel to the aluminum bar 2.
Example 2
The embodiment 2 is completed on the basis of the embodiment 1, and the overcurrent area of the current is increased by adding the crimping part 3, which is specifically as follows:
as shown in fig. 2, the binder 3 is attached to the copper bar weld tab 11. Preferably, the edge pressing part 3 is formed by integrally molding and pressing the copper bar welding sheet 11 through a press. The overcurrent area of the current can be increased, and the temperature rise is reduced. The blank pressing part 3 is arranged between the vertical direction positions at the copper bar 1 and the aluminum bar 2, and more specifically, the height of the blank pressing part 3 is not more than the surface of the aluminum bar 2.
More specifically, when the present embodiment is used in a module, the edge pressing portion 3 can reduce the temperature of the contact surface with the high-pressure support 6 in the module, and can effectively prevent the loosening of the bolt caused by softening of the surface material of the high-pressure support 6 due to high temperature; the reason is mainly that 6 embedded bolts that have of high pressure support, if the high temperature of copper bar 1, the peripheral material of bolt can take place to soften to lead to the bolt to take place not hard up, influence the connection between the module.
Example 3
This embodiment 3 is completed on the basis of embodiment 1 or embodiment 2, and the output stage conductive bar 300 integrated in the L direction can reduce the size of the module in the height direction H, specifically as follows:
the utility model further provides a battery module comprising the output-stage conducting bar, as shown in fig. 3, the battery module further comprises a battery core 4, a wiring harness isolation plate 5, a high-voltage support 6 and a cover plate 7, and the plurality of battery cores 4 are connected in series or in parallel through the output-stage conducting bar 300. One end of the output-stage conducting bar 300 is connected between the battery cell 4 and the wire harness isolation plate 5, and the other end of the output-stage conducting bar 300 is connected to the high-voltage support 6. The cover plate 7 is connected to the top of the wiring harness isolation plate 5, and the cover plate 7 is connected with the high-pressure support 6 in a sealing mode. The battery core 4, the wire harness isolation plate 5 and the output-stage conducting bar 300 are connected in a closed space formed by the high-voltage support 6 and the cover plate 7.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. The output-stage conducting bar is characterized by comprising a conducting copper bar assembly (100) and a conducting aluminum bar assembly (200), wherein the conducting copper bar assembly (100) is connected with the conducting aluminum bar assembly (200);
the conductive copper bar assembly (100) comprises a copper bar (1) and a copper bar welding sheet (11), wherein one side of the copper bar (1) is connected with the copper bar welding sheet (11);
the conductive aluminum bar assembly (200) comprises an aluminum bar (2) and an aluminum bar welding sheet (21), and one side of the aluminum bar (2) is connected with the aluminum bar welding sheet (21);
the copper bar welding sheet (11) is connected with the aluminum bar welding sheet (21) in parallel, and the copper bar (1) is parallel to the aluminum bar (2).
2. The output stage busbar according to claim 1, wherein said copper busbar bonding pads (11) and said aluminum busbar bonding pads (21) are bonded in the L direction.
3. The output stage busbar according to claim 2, wherein the copper bar soldering tab (11) and the aluminum bar soldering tab (21) are oppositely oriented, the copper bar soldering tab (11) faces upward, and the aluminum bar soldering tab (21) faces downward.
4. The output stage conductive bar according to claim 1, wherein the conductive copper bar assembly (100) is L-shaped, the copper bar (1) and the copper bar soldering lug (11) are integrally formed, and the joint of the copper bar (1) and the copper bar soldering lug (11) is chamfered.
5. The output stage busbar according to claim 1, wherein said aluminum row soldering tab (21) is L-shaped, and said aluminum row soldering tab (21) is chamfered.
6. The output stage busbar according to claim 1, wherein said assembly of busbars (100) further comprises a crimp portion (3), said crimp portion (3) being connected to said copper bar solder tab (11).
7. The output stage busbar according to claim 6, wherein said crimping portion (3) is formed by pressing said copper bar solder tab (11), said crimping portion (3) and said copper bar solder tab (11) being respectively between the vertical positions of said copper bar (1) and said aluminum bar (2).
8. A battery module comprising the output stage conductive bar according to any one of claims 1 to 7, further comprising a battery core (4), a wire harness isolation plate (5) and a high voltage support (6), wherein one end of the output stage conductive bar (300) is connected between the battery core (4) and the wire harness isolation plate (5), and the other end of the output stage conductive bar (300) is connected to the high voltage support (6).
9. The battery module according to claim 8, further comprising a cover plate (7), wherein the cover plate (7) is connected to the top of the harness isolation plate (5), the cover plate (7) is hermetically connected with the high-voltage support (6), and the battery core (4), the harness isolation plate (5) and the output stage conductive bar (300) are connected in a sealed space formed by the high-voltage support (6) and the cover plate (7).
10. The battery module according to claim 8, characterized in that a plurality of the cells (4) are connected in series or in parallel by the output stage conductive bar (300).
CN202123270414.0U 2021-12-23 2021-12-23 Output-stage conducting bar and battery module thereof Active CN216958416U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123270414.0U CN216958416U (en) 2021-12-23 2021-12-23 Output-stage conducting bar and battery module thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123270414.0U CN216958416U (en) 2021-12-23 2021-12-23 Output-stage conducting bar and battery module thereof

Publications (1)

Publication Number Publication Date
CN216958416U true CN216958416U (en) 2022-07-12

Family

ID=82310012

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123270414.0U Active CN216958416U (en) 2021-12-23 2021-12-23 Output-stage conducting bar and battery module thereof

Country Status (1)

Country Link
CN (1) CN216958416U (en)

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