Battery module and battery pack
By using a wire design with an outer tube made of flexible material in the battery module, the problem of inconvenient installation caused by fixed wire length is solved, enabling flexible adaptation to the needs of different scenarios and improving the applicability and reliability of the battery module.
Patent Information
- Application Number
- CN202422947897.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The fixed length of wires in existing battery modules makes them unsuitable for different installation scenarios, increasing assembly time and operational complexity.
The conductor uses an outer tube made of elastic material and is designed with bending sections to achieve elastic deformation. Its expansion and contraction can be adjusted by stretching or loosening the conductor to adapt to different installation requirements.
It improves the applicability of plug-ins and the range of applications for battery modules, reduces damage caused by stress concentration, extends service life, and improves assembly efficiency.
Smart Images
Figure CN223539803U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery-related technology, and more specifically, to a battery module and battery pack. Background Technology
[0002] With the development of new energy technologies, battery technology is also constantly improving, and the requirements for the safety performance and cost of battery packs are becoming increasingly stringent. In existing technologies, battery modules typically consist of cells, protection boards, brackets, busbars, and plug-ins, among which brackets and protection boards are used to fix the cells, and plug-ins are used for electrical connection between the cells and external circuits.
[0003] During battery module assembly, the fixed length and lack of flexibility of the connector wires often lead to a series of problems and inconveniences. Traditionally, to ensure reliable circuit connections, connector wires are manufactured with a certain length allowance to prevent poor connections due to processing or positioning errors during assembly. However, this fixed-length wire is unsuitable for various installation requirements in practical applications. When the required length is greater than the wire length, the battery module cannot be assembled; when the required length is less than the wire length, extra time is needed to organize and secure the excessively long wires to prevent them from becoming disordered or compressed inside the product. This not only increases assembly time costs but also raises operational complexity and reduces overall production efficiency.
[0004] As can be seen from the above, the current battery modules have fixed wire lengths, which makes them inconvenient to use in different installation scenarios. Utility Model Content
[0005] The main purpose of this utility model is to provide a battery module and battery pack to solve the problem that the fixed length of the wires in the existing battery module makes it inconvenient to apply to different installation scenarios.
[0006] To achieve the above objectives, according to one aspect of the present invention, a battery module is provided. The battery module includes a housing, a bracket, a protection plate, and a plug-in. The bracket is disposed inside the housing and is used to fix the battery cell. The protection plate is disposed on the top of the bracket. The plug-in includes a wire and a body part disposed outside the housing. One end of the wire is connected to the protection plate, and the other end of the wire is connected to the body part. The wire has an outer tube of elastic material and a bent section that can elastically deform and expand.
[0007] Furthermore, the portion of the wire located inside the housing has a bent section; and / or the portion of the wire located outside the housing has a bent section.
[0008] Furthermore, the line connecting the two ends of the bent section is parallel to the length direction of the support.
[0009] Furthermore, there may be one bending segment; or there may be multiple bending segments, with the multiple bending segments spaced apart along the length of the support.
[0010] Furthermore, the bending segment is an arc-shaped segment; or the bending segment includes multiple arc-shaped segments arranged sequentially along the length of the support, and the multiple arc-shaped segments are arranged in a wave-like pattern.
[0011] Furthermore, the bent section has a spiral structure.
[0012] Furthermore, the portion of the wire located inside the housing is supported on a protective plate and / or bracket.
[0013] Furthermore, the outer tube of the conductor is made of rubber or polyurethane; and / or, a metal conductive wire is disposed inside the outer tube, and the protective plate is electrically connected to the main body through the metal conductive wire.
[0014] Furthermore, the inner wall of the bracket has a support frame, the support frame has a limiting channel extending along the length of the bracket, a portion of the wire is disposed inside the limiting channel, the outer wall of the wire is in contact with and slidably disposed with at least a portion of the inner wall of the limiting channel, and the housing has a notch communicating with the limiting channel.
[0015] According to one aspect of the present invention, a battery pack is provided, the battery pack including the battery module described above.
[0016] By applying the technical solution of this utility model, the battery module of this application uses a wire with a bent section to cooperate with the main body to form a plug-in. By stretching the wire, the bent section can be driven to undergo elastic deformation and telescopile. When the wire needs to extend, it can be extended by pulling the wire. When the wire is released, the bent section returns to its original shape under the action of elastic restoring force. By setting the bent section to be elastically deformable, the distance between the main body of the plug-in and the shell can be adjusted, thereby matching the needs of different installation scenarios, which helps to improve the applicability of the plug-in and thus expand the application range of the battery module. This avoids the problem of the fixed wire length in the prior art, which makes it inconvenient to use in different scenarios. Attached Figure Description
[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0018] Figure 1 A three-dimensional structural schematic diagram of the battery module of this utility model is shown, wherein the bent section of the wire is in the retracted position;
[0019] Figure 2A top view of the battery module of this utility model is shown, wherein the bent section of the wire is in the retracted position;
[0020] Figure 3 A three-dimensional structural schematic diagram of the battery module of this utility model is shown, wherein the bent section of the wire is in the extended position;
[0021] Figure 4 A top view of the battery module of this utility model is shown, in which the bent section of the wire is in the extended position.
[0022] The above figures include the following reference numerals:
[0023] 10. Bracket; 110. Support frame; 111. Limiting channel; 20. Protective plate; 30. Insert; 310. Body; 320. Wire; 321. Bending section. Detailed Implementation
[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0026] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0027] Example 1
[0028] To address the problem that existing battery modules have fixed wire lengths, making them inconvenient for different installation scenarios, this application provides a battery module.
[0029] The battery module can be electrically connected to external devices through plug-in 30, and the plug-in 30 ensures a stable connection between the battery module and the external circuit.
[0030] like Figures 1 to 4As shown, the battery module includes a housing, a bracket 10, a protection plate 20, and a plug-in 30. The bracket 10 is located inside the housing and is used to fix the battery cells. The protection plate 20 is located on top of the bracket 10. The plug-in 30 includes a wire 320 and a body part 310 located outside the housing. One end of the wire 320 is connected to the protection plate 20, and the other end of the wire 320 is connected to the body part 310. The wire 320 has an outer tube made of elastic material, and the outer tube has a bent section 321. The bent section 321 can undergo elastic deformation under external force, realizing the extension and retraction of the wire.
[0031] The protection plate 20 is located inside the housing and on top of the battery cell. The protection plate 20 is electrically connected to the battery cell, specifically through a busbar. The protection plate 20 is parallel to the top of the battery cell. The protection plate 20 and the bracket 10 work together to fix the battery cell and protect it.
[0032] The outer tube is made of either rubber or polyurethane.
[0033] The length direction of bracket 10 is Figure 1 The X direction is shown.
[0034] Specifically, the battery module of this application uses a wire 320 with a bent section 321 to cooperate with the body 310 to form a plug-in 30. By stretching the wire 320, the bent section 321 can undergo elastic deformation and extend / retract. When the wire 320 needs to extend, it can be extended by pulling it. When the pulling of the wire 320 is released, the bent section 321 returns to its original position under the action of elastic restoring force. The elastic deformation of the bent section 321 allows for adjustment of the distance between the body 310 and the housing of the plug-in 30, thus adapting to the needs of different installation scenarios and improving the applicability of the plug-in 30, thereby expanding the application range of the battery module. This avoids the problem of the fixed length of the wire 320 in existing technologies, which makes it inconvenient to use in different scenarios.
[0035] In this embodiment, the bending segment 321 has an extended position and a retracted position. That is, after the bending segment 321 undergoes elastic deformation under force, it can switch from the retracted position to the extended position. At this time, the main body 310 can move along the length direction of the bracket 10 towards the side away from the housing to increase the installation gap between the main body 310 and the housing. When an external force contacts the housing, the bending segment 321 switches from the extended position to the retracted position under the drive of the restoring force. At this time, the main body 310 moves along the length direction of the bracket 10 towards the housing to decrease the installation gap between the main body 310 and the housing. By adjusting the size of the installation gap, the battery module can be adapted to different installation scenarios.
[0036] The bending section 321 of this application can undergo elastic deformation, which helps to absorb the internal stress generated by thermal expansion and contraction, mechanical impact and other reasons during the assembly or use of the battery module, avoids damage to the wire 320 due to stress concentration, and improves the reliability and service life of the battery module.
[0037] In this embodiment, the following implementation methods are provided depending on the number and position of the bent segments 321.
[0038] like Figure 1 and Figure 2 In the specific embodiment shown, a bending segment 321 is provided, and the bending segment 321 is located inside the housing.
[0039] Specifically, placing the bending section 321 inside the housing facilitates protection of the bending section 321 through the housing, and the concealed bending section 321 also improves the overall aesthetics.
[0040] In one specific embodiment not shown, multiple bending segments 321 are provided, and the multiple bending segments 321 are spaced apart along the length direction of the bracket 10, and the bending segments 321 are located inside the housing.
[0041] Specifically, placing the bending section 321 inside the housing facilitates protection of the bending section 321 through the housing, and the concealed bending section 321 also improves the overall aesthetics.
[0042] In this embodiment, the structure of multiple bending segments 321 is beneficial to improving the elastic deformation strength of the conductor 320. When the force on the bending segment 321 changes towards the extended position, the multiple bending segments 321 can undergo elastic deformation successively, which is beneficial to improving the strength of the conductor 320.
[0043] In one embodiment not shown, a bent segment 321 is provided and is located on the outside of the housing.
[0044] Specifically, placing the bent section 321 on the outside of the housing can reduce the space occupied by the wire 320 inside the housing, thereby reducing the space occupied inside the housing and improving the utilization rate of the space inside the housing.
[0045] In one specific embodiment not shown, multiple bending segments 321 are provided and are located on the outside of the housing.
[0046] Specifically, placing the bent section 321 on the outside of the housing can reduce the space occupied by the wire 320 inside the housing, thereby reducing the space occupied inside the housing and improving the utilization rate of the space inside the housing.
[0047] In this embodiment, the structure of multiple bending segments 321 is beneficial to improving the elastic deformation strength of the conductor 320. When the force on the bending segment 321 changes towards the extended position, the multiple bending segments 321 can undergo elastic deformation successively, which is beneficial to improving the strength of the conductor 320.
[0048] In one specific embodiment not shown, multiple bending segments 321 are provided, with some bending segments 321 disposed inside the housing and some bending segments 321 disposed outside the housing.
[0049] Specifically, the structure of multiple bending segments 321 is beneficial to improving the elastic deformation strength of the conductor 320. When the force on the bending segment 321 changes towards the extended position, the multiple bending segments 321 can undergo elastic deformation successively, which is beneficial to improving the strength of the conductor 320.
[0050] In this embodiment, the bending section 321 located inside the housing is beneficial for protecting the bending section 321 through the housing, and the concealed bending section 321 is also beneficial for improving the overall aesthetics. The bending section 321 located outside the housing is beneficial for reducing the space occupied inside the housing, thereby improving the utilization rate of the internal space of the housing.
[0051] like Figure 1 and Figure 2 As shown, the line connecting the two ends of the bent section 321 is parallel to the length direction of the bracket 10.
[0052] Specifically, the two ends of the bending section 321 are the first end and the second end, respectively. The structure in which the first end and the second end are collinear is beneficial to the bending section 321 stretching along the length of the housing when switching from the retracted position to the extended position. This facilitates the movement of the main body 310 of the plug-in 30 away from the housing along the length of the bracket 10, thereby increasing the installation gap.
[0053] Among them, such as Figure 3 and Figure 4 As shown, when the bent section 321 is in the extended position, the two ends of the bent section 321 are linearly arranged along the length direction of the bracket 10.
[0054] In this embodiment, the bending segment 321 can be composed of an arc segment. There can be one arc segment, which has a simple overall structure and is conducive to improving installation efficiency. Alternatively, there can be multiple arc segments arranged sequentially along the length direction of the bracket 10. The arrangement of multiple arc segments is conducive to increasing the extension length of the bending segment 321 when it is in the extended position, and also makes the conductor 320 have a more stable elastic deformation capability.
[0055] Of course, the bent segment 321 is not limited to the structure of an arc segment. It can also be a spiral structure. The spiral structure allows the bent segment 321 of the same length to have a longer extension length.
[0056] In this embodiment, the portion of the wire 320 located inside the housing is supported on the protective plate 20. The top surface of the protective plate 20 supports the wire 320 to prevent the wire 320 from being suspended and affecting the switching of conductivity between the extended and retracted positions. The other portion of the wire 320 located inside the housing is supported on the bracket 10. The bracket 10 supports the wire 320 to prevent the wire 320 from being suspended and affecting the switching of conductivity between the extended and retracted positions.
[0057] Specifically, the inner wall of the bracket 10 has a support frame 110, the support frame 110 has a limiting channel 111 extending along the length direction of the bracket 10, a portion of the wire 320 is disposed inside the limiting channel 111, and the outer wall of the wire 320 is in contact with at least a portion of the inner wall of the limiting channel 111 and is slidably disposed.
[0058] The limiting channel 111 is designed to ensure that the wire 320 inside the housing can only move towards the outside of the housing along the length of the bracket 10, thus having a limiting function. At the same time, the bracket 10 also has a support and pre-installation position. When assembling the battery module, placing part of the wire 320 inside the limiting channel 111 facilitates the installation and fixing of the wire 320.
[0059] It is understandable that when there are two wires 320, two limiting channels 111 are formed on the corresponding bracket 10, and the wires 320 and the limiting channels 111 are set in a one-to-one correspondence.
[0060] In this embodiment, the housing has a notch that communicates with the limiting channel 111 to facilitate the wire 320 to extend out of the housing and connect to the main body 310. One end of the wire 320 is welded to the protective plate 20, and the other end of the wire 320 is welded to or snapped to the main body 310.
[0061] In this embodiment, the conductor 320 includes an outer tube and a metal conductive wire. The outer tube at the bend 321 can undergo elastic deformation. The metal conductive wire is disposed inside the plastic outer tube. The protective plate 20 is electrically connected to the main body 310 through the metal conductive wire.
[0062] The outer tube is shaped and fixed after shaping to allow the bending section 321 to undergo elastic deformation and expansion. The metal conductive wire is set inside the outer tube and moves with the deformation of the outer tube.
[0063] In this embodiment, the metal conductive wire can be copper wire to provide a stable conductive effect. Of course, the metal conductive wire can also be other metal materials, such as aluminum.
[0064] Example 2
[0065] This embodiment provides a battery pack, which includes the battery module from Embodiment 1.
[0066] The battery pack in this embodiment includes the battery module in this embodiment, so the battery pack provided in this embodiment can be applied to a variety of different installation scenarios.
[0067] As can be seen from the above description, the embodiments of this application achieve the following technical effects:
[0068] The battery module of this application uses a wire 320 with a bent section 321 to cooperate with the main body 310 to form a plug-in 30. By stretching the wire 320, the bent section 321 can undergo elastic deformation and extend / retract. When the wire 320 needs to extend, it can be extended by pulling it. When the pulling of the wire 320 is released, the bent section 321 returns to its original position under the action of elastic restoring force. The elastic deformation of the bent section 321 allows for adjustment of the distance between the main body 310 and the housing of the plug-in 30, thus adapting to the needs of different installation scenarios and improving the applicability of the plug-in 30, thereby expanding the application range of the battery module. This avoids the problem of the fixed length of the wire 320 in existing technologies, which makes it inconvenient to use in different scenarios.
[0069] The bending section 321 of this application can undergo elastic deformation, which helps to absorb the internal stress generated by thermal expansion and contraction, mechanical impact and other reasons during the assembly or use of the battery module, avoids damage to the wire 320 due to stress concentration, and improves the reliability and service life of the battery module.
[0070] The support frame 110 provided on the bracket 10 of this application provides a limiting channel 111. The limiting channel 111 is set to ensure that the wire 320 inside the housing can only move towards the outside of the housing along the length direction of the bracket 10, thereby having a limiting function. At the same time, the bracket 10 also has a support and pre-installation position. When assembling the battery module, the wire 320 is placed inside the limiting channel 111 to facilitate the installation and fixation of the wire 320.
[0071] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0072] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0073] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0074] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A battery module, characterized in that, include: case; A bracket (10) is disposed inside the housing, the bracket (10) being used to fix the battery cell; A protective plate (20) is disposed on the top of the bracket (10); The plug (30) includes a wire (320) and a body part (310) disposed outside the housing. One end of the wire (320) is connected to the protective plate (20), and the other end of the wire (320) is connected to the body part (310). The wire (320) has an outer tube of elastic material, and the outer tube has a bent section (321) that can elastically deform and expand.
2. The battery module according to claim 1, characterized in that, The portion of the conductor (320) located inside the housing has the bent section (321); and / or The portion of the conductor (320) located outside the housing has the bent section (321).
3. The battery module according to claim 1, characterized in that, The line connecting the two ends of the bent section (321) is parallel to the length direction of the bracket (10).
4. The battery module according to claim 1, characterized in that, The bent segment (321) is provided with one; or Multiple bending segments (321) are provided, and the multiple bending segments (321) are spaced apart along the length direction of the bracket (10).
5. The battery module according to claim 1, characterized in that, The bent segment (321) is an arc-shaped segment; or The bending section (321) includes a plurality of arc-shaped sections arranged sequentially along the length direction of the bracket (10), and the plurality of arc-shaped sections are arranged in a wave shape.
6. The battery module according to claim 1, characterized in that, The bent section (321) has a spiral structure.
7. The battery module according to claim 1, characterized in that, The portion of the conductor (320) located inside the housing is supported on the protective plate (20) and / or the bracket (10).
8. The battery module according to any one of claims 1 to 7, characterized in that, The outer tube is made of rubber or polyurethane; and / or The conductor (320) includes a metal conductive wire and is disposed inside the outer tube. The protective plate (20) is electrically connected to the body part (310) through the metal conductive wire.
9. The battery module according to any one of claims 1 to 7, characterized in that, The bracket (10) has a support frame (110) on its inner wall surface. The support frame (110) has a limiting channel (111) extending along the length direction of the bracket (10). A portion of the wire (320) is disposed inside the limiting channel (111). The outer wall surface of the wire (320) is in contact with and slidably disposed with at least a portion of the inner wall surface of the limiting channel (111). The housing has a notch that communicates with the limiting channel (111).
10. A battery pack, characterized in that, The battery pack includes the battery module according to any one of claims 1 to 9.