Battery assembly, battery pack and vehicle
By setting the acquisition sheet between the pole column and the ear of the battery cell in the battery assembly and welding it with both at the same time, the number of welding times is reduced, and the problem of time-consuming signal acquisition process in the prior art is solved, and the material cost is reduced.
Patent Information
- Application Number
- CN202421813128.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The signal collection method in the existing new energy vehicle battery pack requires two welding, resulting in a long working time and the collection sheet requires a limit column, which increases the cost of materials.
A battery assembly is designed in which the acquisition piece of the acquisition wire harness is located between the pole column and the pole ear of the battery cell, and is welded and connected to the pole ear and the battery cell at the same time to reduce the number of welding times; at the same time, the wiring harness structure is limited through the limiting part structure to avoid offset of the acquisition piece.
It realizes that the signal acquisition welding process only requires one welding to complete, which reduces working hours, reduces material costs, and improves the stability of the welding process.
Smart Images
Figure CN223023543U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, and more specifically, to a battery assembly, a battery pack and a vehicle. Background Art
[0002] The battery pack is an important component of new energy vehicles.
[0003] In the prior art, the signal acquisition method in the battery pack of new energy vehicles requires welding the acquisition sheet and the aluminum bar. In this process, two welding processes are required to complete. One welding is the welding of the tab and the battery cell, and the other is the welding of the acquisition sheet and the aluminum bar, resulting in a long working time. Summary of the Utility Model
[0004] The utility model provides a battery assembly, a battery pack and a vehicle, which can reduce the working time consumed in the signal acquisition welding process.
[0005] Embodiments of the utility model may be implemented as follows:
[0006] In a first aspect, the utility model provides a battery assembly, including:
[0007] A battery cell;
[0008] A mounting plate, on which the battery cell is arranged;
[0009] A tab, which is arranged on the mounting plate; and
[0010] An acquisition wire harness, the acquisition wire harness includes a wire harness structure and an acquisition sheet connected to each other, the acquisition sheet is located between the pole column of the battery cell and the tab, and the acquisition sheet is welded and connected to both the tab and the battery cell.
[0011] In an optional embodiment, the battery assembly further includes a first limiting member and a second limiting member, both the first limiting member and the second limiting member are arranged on the mounting plate, the first limiting member and the second limiting member are spaced apart, the first limiting member and the second limiting member jointly define a first limiting space, and the wire harness structure passes through the first limiting space.
[0012] In an optional embodiment, both the first limiting member and the second limiting member are in a strip-shaped structure.
[0013] In an optional embodiment, the first limiting member and the second limiting member are arranged in parallel.
[0014] In an alternative embodiment, the battery assembly further includes a third limiting member and a fourth limiting member, the third limiting member and the fourth limiting member are disposed on the mounting plate, the third limiting member and the fourth limiting member are spaced apart, and the third limiting member and the fourth limiting member jointly define a second limiting space, and the wire harness structure is passed through the second limiting space.
[0015] In an alternative embodiment, the first limiting space extends in a first direction, the second limiting space extends in a second direction, and the first direction and the second direction form an angle.
[0016] In an alternative embodiment, the battery assembly further includes a fifth limiting member, the fifth limiting member is disposed on the mounting plate, the fifth limiting member is used to abut against the wire harness structure, and the fifth limiting member is farther from the collecting piece than the first limiting member.
[0017] In an alternative embodiment, the collecting piece is a nickel piece.
[0018] In a second aspect, the present utility model provides a battery pack, including a housing and the battery assembly according to any one of the foregoing embodiments, and the battery assembly is disposed in the housing.
[0019] In a third aspect, the present utility model provides a vehicle, including the battery pack according to the foregoing embodiment.
[0020] The beneficial effects of the battery assembly, battery pack and vehicle according to the embodiments of the present utility model include, for example:
[0021] The present utility model provides a battery assembly, which includes a battery cell, a mounting plate, a tab and a collecting wire harness. The battery cell is disposed on the mounting plate, the tab is disposed on the mounting plate, the collecting wire harness includes a wire harness structure and a collecting piece connected to each other, the collecting piece is located between the pole column of the battery cell and the tab, and the collecting piece is welded to both the tab and the battery cell. Since the collecting piece of the collecting wire harness is disposed between the pole column of the battery cell and the tab, during the welding process of the tab, the collecting piece can be welded to both the tab and the battery cell at the same time, and the purpose that needs to be welded twice in the prior art can be achieved with only one welding, reducing the working hours consumed in the signal collection welding process.
[0022] The present utility model provides a battery pack, which includes a housing and the above-mentioned battery assembly, and the battery assembly is disposed in the housing, and the battery pack has all the functions of the above-mentioned battery assembly.
[0023] The present utility model provides a vehicle, which includes the above-mentioned battery pack, and the vehicle has all the functions of the above-mentioned battery pack. Description of the Drawings
[0024] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can be obtained based on these drawings.
[0025] Figure 1 Schematic diagram of the first perspective of the battery assembly provided in the embodiment of the present utility model;
[0026] Figure 2 Schematic diagram of the second perspective of the battery assembly provided in the embodiment of the present utility model.
[0027] Reference numerals: 100 - battery cell; 200 - mounting plate; 300 - tab plate; 310 - tab; 400 - acquisition wire harness; 410 - wire harness structure; 420 - acquisition sheet; 510 - first limiting member; 520 - second limiting member; 501 - first limiting space; 610 - third limiting member; 620 - fourth limiting member; 601 - second limiting space; 700 - fifth limiting member. Detailed implementation manners
[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
[0030] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0031] In the description of the present utility model, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0032] In addition, if terms such as "first", "second", etc. are only used for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.
[0033] It should be noted that, without conflict, the features in the embodiments of the present utility model can be combined with each other.
[0034] A battery refers to a part of a cup, trough, or other container or composite container that contains an electrolyte solution and metal electrodes to generate current, and is a device that can convert chemical energy into electrical energy. It has positive and negative electrodes. The performance parameters of a battery mainly include electromotive force, capacity, specific energy, and resistance.
[0035] A battery is a device that can convert chemical energy into electrical energy and has positive and negative electrodes. Using a battery as an energy source, a stable voltage and a stable current can be obtained, and it can supply power stably for a long time, without being affected by the external climate and temperature, and its performance is stable and reliable.
[0036] Among them, as submitted in the background technology, a battery pack is an important part of a new energy vehicle. In the prior art, in the signal acquisition welding process, the signal acquisition method in the battery pack of a new energy vehicle requires welding a collection piece (such as a nickel piece) and an aluminum bar. In this process, two welding processes are required to complete the fixation of the collection piece. One welding is the welding of the tab 310 and the battery cell 100, and the other is the welding of the collection piece and the aluminum bar, resulting in a long working time. Here, the long working time can be understood as the turnover working time required for the two weldings and the inspection working time required for the two welding processes.
[0037] In addition, a limiting post is required to limit the collection piece during the welding process of the collection piece, resulting in an increase in material costs.
[0038] In view of this, please refer to Figure 1 and Figure 2 , the battery assembly, battery pack, and vehicle provided in the embodiments of the present utility model can solve this problem, and will be described in detail below.
[0039] In an embodiment of the present utility model, a vehicle is provided. The vehicle can be a new energy vehicle. The vehicle includes a battery pack, which can be used as the power battery of the vehicle. The battery pack includes a housing and a battery assembly. The battery assembly is disposed in the housing. Specifically, the battery assembly includes a battery cell 100, a mounting plate 200, a tab plate 300, and a collection wire harness 400. The tab plate 300 is disposed on the mounting plate 200. A partial structure of the tab plate 300 is a tab 310. It is easy to understand that the tab 310 is disposed on the mounting plate 200, and the battery cell 100 is disposed on the mounting plate 200.
[0040] The collection wire harness 400 includes a wire harness structure 410 and a collection piece 420 connected to each other ( Figure 1 The collection piece 420 in can be understood as a partial structure of the collection piece 420, and the remaining structure of the collection piece 420 is covered by the tab 310). The collection piece 420 is located between the pole column of the battery cell 100 and the tab 310. The collection piece 420 is welded to both the tab 310 and the battery cell 100 at the same time.
[0041] Since the collection piece 420 of the collection wire harness 400 is disposed between the pole column of the battery cell 100 and the tab 310 (which can be understood as an aluminum bar structure), during the welding process of the tab 310, the collection piece 420 can be welded to both the tab 310 and the battery cell 100 at the same time. Only one welding is required to achieve the purpose that needs to be completed by welding twice in the prior art, which is convenient for realizing the signal collection of the battery pack and reduces the working hours consumed in the signal collection welding process.
[0042] In this embodiment, the collection piece 420 can be understood as a nickel sheet, a copper sheet, a steel sheet, an aluminum sheet, etc.
[0043] Specifically, since the collection piece 420 of the collection wire harness 400 is disposed between the pole column of the battery cell 100 and the tab 310, during the welding process of the tab 310, the tab 310 can be welded through, and the collection piece 420 of the collection wire harness 400, the pole column of the battery cell 100, and the tab 310 can be welded together. In this way, the purpose that needs to be completed by welding twice in the prior art can be achieved through one welding process, reducing the working hours consumed in the signal collection welding process.
[0044] At the same time, the collection piece 420 does not require a limiting post to limit the collection piece 420, reducing the material cost.
[0045] To prevent the position of the acquisition sheet 420 from shifting, it is necessary to limit the wire harness structure 410 of the acquisition wire harness 400. Among them, the battery assembly further includes a first limiting member 510 and a second limiting member 520. Both the first limiting member 510 and the second limiting member 520 are arranged on the mounting plate 200. The first limiting member 510 and the second limiting member 520 are spaced apart, and the first limiting member 510 and the second limiting member 520 jointly define a first limiting space 501, and the wire harness structure 410 is threaded through the first limiting space 501.
[0046] Specifically, both the first limiting member 510 and the second limiting member 520 are in a long strip shape, and the first limiting member 510 and the second limiting member 520 are distributed in parallel.
[0047] It is easy to understand that both the first limiting member 510 and the second limiting member 520 can limit the wire harness structure 410.
[0048] To further improve the limiting effect on the wire harness structure 410, the battery assembly further includes a third limiting member 610 and a fourth limiting member 620. The third limiting member 610 and the fourth limiting member 620 are arranged on the mounting plate 200. The third limiting member 610 and the fourth limiting member 620 are spaced apart, and the third limiting member 610 and the fourth limiting member 620 jointly define a second limiting space 601, and the wire harness structure 410 is threaded through the second limiting space 601.
[0049] The third limiting member 610 is connected to the first limiting member 510. Specifically, the third limiting member 610 and the first limiting member 510 can be integrally formed, and the second limiting member 520 and the fourth limiting member 620 are spaced apart.
[0050] Specifically, the first limiting space 501 extends along a first direction. Here, extending along the first direction can be understood as extending along the length direction of a part of the wire harness of the wire harness structure 410 located in the first limiting space 501.
[0051] The second limiting space 601 extends along a second direction. Here, extending along the second direction can be understood as extending along the length direction of a part of the wire harness of the wire harness structure 410 located in the second limiting space 601.
[0052] The first direction and the second direction form an angle, and this angle can be a right angle. Therefore, a part of the wire harness of the wire harness structure 410 located in the first limiting space 501 and a part of the wire harness of the wire harness structure 410 located in the second limiting space 601 are distributed at a right angle.
[0053] To further improve the limiting effect on the wire harness structure 410, the battery assembly further includes a fifth limiting member 700. The fifth limiting member 700 is disposed on the mounting plate 200 and is used to abut against the wire harness structure 410. The fifth limiting member 700 is farther from the collecting piece 420 than the first limiting member 510.
[0054] It is easy to understand that the first limiting member 510, the second limiting member 520, the third limiting member 610, the fourth limiting member 620, and the fifth limiting member 700 can prevent the wire harness structure 410 from shifting due to its own stress factors, which may cause the collecting piece 420 to shift and affect the welding process of the collecting piece 420.
[0055] In addition, it should be noted that during the manufacturing process of the battery assembly, the collecting piece 420 can be first placed on the pole post surface of the battery cell 100, and then the pole ear 310 is installed above the collecting piece 420. The wire harness structure 410 is limited by the first limiting member 510, the second limiting member 520, the third limiting member 610, the fourth limiting member 620, and the fifth limiting member 700, and then through laser welding, the pole ear 310, the collecting piece 420, and the battery cell 100 are welded together, and finally the inspection process is completed.
[0056] In summary, the battery assembly includes a battery cell 100, a mounting plate 200, a pole ear 310, and a collecting wire harness 400. The battery cell 100 is disposed on the mounting plate 200, the pole ear 310 is disposed on the mounting plate 200, the collecting wire harness 400 includes a wire harness structure 410 and a collecting piece 420 connected to each other. The collecting piece 420 is located between the pole post of the battery cell 100 and the pole ear 310, and the collecting piece 420 is welded to both the pole ear 310 and the battery cell 100.
[0057] Since the collecting piece 420 of the collecting wire harness 400 is disposed between the pole post of the battery cell 100 and the pole ear 310, during the welding process of the pole ear 310, the collecting piece 420 can be welded to both the pole ear 310 and the battery cell 100 at the same time. Only one welding is required to achieve the purpose that requires two weldings in the prior art, reducing the man-hours consumed in the signal collection welding process.
[0058] It can be seen that only one welding is required to achieve the purpose that requires two weldings in the prior art, reducing the number of weldings, and thus reducing the turnover man-hours and inspection man-hours.
[0059] The battery pack includes a housing and the above-mentioned battery assembly. The battery assembly is disposed in the housing, and the battery pack has all the functions of the above-mentioned battery assembly.
[0060] The vehicle includes the above-mentioned battery pack, and the vehicle has all the functions of the above-mentioned battery pack.
[0061] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.
Claims
1. A battery assembly, characterized in that: include: Battery cell (100); A mounting plate (200), wherein the battery cell (100) is arranged on the mounting plate (200); A pole lug (310), the pole lug (310) being arranged on the mounting plate (200); as well as A collection harness (400), the collection harness (400) comprising a connected harness structure (410) and a collection sheet (420), the collection sheet (420) being located between a pole of the battery cell (100) and the pole lug (310), and the collection sheet (420) being welded to the pole lug (310) and the battery cell (100) at the same time.
2. The battery assembly according to claim 1, characterized in that: The battery assembly further comprises a first limit member (510) and a second limit member (520), wherein the first limit member (510) and the second limit member (520) are both arranged on the mounting plate (200), the first limit member (510) and the second limit member (520) are spaced apart, the first limit member (510) and the second limit member (520) jointly define a first limit space (501), and the wiring harness structure (410) is passed through the first limit space (501).
3. The battery assembly according to claim 2, characterized in that: The first limiting member (510) and the second limiting member (520) are both long strip structures.
4. The battery assembly according to claim 3, characterized in that: The first limiting member (510) and the second limiting member (520) are distributed in parallel.
5. The battery assembly according to claim 2, characterized in that: The battery assembly further comprises a third limiting member (610) and a fourth limiting member (620), wherein the third limiting member (610) and the fourth limiting member (620) are arranged on the mounting plate (200), the third limiting member (610) and the fourth limiting member (620) are spaced apart, and the third limiting member (610) and the fourth limiting member (620) jointly define a second limiting space (601), and the wiring harness structure (410) is passed through the second limiting space (601).
6. The battery assembly according to claim 5, characterized in that: The first limiting space (501) extends along a first direction, and the second limiting space (601) extends along a second direction, and the first direction and the second direction form an angle.
7. The battery assembly according to claim 2, characterized in that: The battery assembly further comprises a fifth limiting member (700), the fifth limiting member (700) being arranged on the mounting plate (200), the fifth limiting member (700) being used to abut against the wiring harness structure (410), and the fifth limiting member (700) being away from the collection piece (420) relative to the first limiting member (510).
8. The battery assembly according to claim 1, characterized in that: The collection sheet (420) is a nickel sheet.
9. A battery pack, characterized in that: It comprises a shell and the battery assembly according to any one of claims 1 to 8, wherein the battery assembly is arranged in the shell.
10. A vehicle, characterized in that: A battery pack comprising the battery pack of claim 9.