Battery foolproof support structure and battery pack

Abstract

The utility model belongs to the field of battery pack, concretely relates to a battery anti -stupid support structure and battery pack, wherein, the battery anti -stupid support structure of the application, including the frame body, a plurality of battery grooves are arranged in the frame body, and the battery groove is used for assembling the battery, the frame body is provided with the first anti -stupid groove on one side along the length direction, and the first anti -stupid groove is provided with the first hollow part, the frame body is provided with at least one, the frame body is assembled in the battery shell, the first anti -stupid groove is set up on one side of the length direction of frame body in the application, and the first hollow part is set up in the anti -stupid groove. The structure has obvious directionality and identification characteristics, effectively prevents the operator from installing the support reversely in the assembling process, plays the role of anti -stupid mistake proofing. Meanwhile, the first hollow part provides the spatial adaptation relation with the battery shell or the positioning structure, improves the positioning accuracy and consistency of overall assembly.

Description

Technical Field

[0001] This utility model belongs to the field of battery packs, specifically relating to a battery anti-mistake bracket structure and a battery pack. Background Technology

[0002] With the rapid development of new energy vehicles, energy storage equipment and other fields, the structural design of battery packs is becoming increasingly complex. Among them, the battery bracket, as a key structural component in the battery pack, plays a role in fixing the cells, limiting the relative displacement of the cells, and providing auxiliary functions for installation positioning and electrical connection to a certain extent.

[0003] Currently, most battery holders on the market are made of injection-molded plastic and designed with multiple battery slots. The battery cells are assembled into these slots before being fully assembled into the battery casing. However, existing battery holders still have certain technical shortcomings in practical use. Because traditional holder structures are relatively symmetrical in shape and lack clear assembly orientation identification features, operators are prone to incorrect assembly during the assembly process. Furthermore, for the sake of battery pack stability, traditional holders are usually designed to fit tightly to the battery casing, making it difficult to disassemble and inspect the cylindrical batteries within the battery pack, thus reducing maintenance efficiency.

[0004] Therefore, it is urgent to improve the battery anti-foolproof bracket structure and battery pack to solve the technical defects of the existing technical solutions. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a battery anti-mistake bracket structure, thereby solving problems such as bracket assembly errors, damaged connecting pieces, and difficulties in disassembly and assembly in existing technologies.

[0006] To achieve the above objectives, this application implements the following technical solution:

[0007] A battery anti-mistake bracket structure includes a frame;

[0008] The frame has multiple battery slots for assembling batteries.

[0009] A first anti-mistake groove is provided on one side of the frame along the length direction, and a first hollow part is provided in the first anti-mistake groove;

[0010] The frame is equipped with at least one;

[0011] The frame is assembled onto the battery casing.

[0012] The above technical solution produces the following technical effects:

[0013] This application provides a first anti-misfit groove on one side of the frame along its length, and a first cutout portion within the anti-misfit groove. This structure has clear directionality and identification features, effectively preventing operators from installing the bracket in the wrong direction during assembly, thus preventing mistaken installation. Simultaneously, the first cutout portion provides a spatial fit with the battery casing or positioning structure, improving the overall assembly positioning accuracy and consistency.

[0014] Furthermore, as a further improvement to the battery anti-mistake bracket structure of this application, the bracket body is symmetrically provided with second anti-mistake grooves on both sides along the width direction, and the second anti-mistake grooves are provided with second hollow parts.

[0015] As a further improvement to the battery anti-mistake bracket structure of this application, two second anti-mistake grooves are symmetrically provided on both sides of the bracket along the width direction.

[0016] As a further improvement to the battery anti-foolproof bracket structure of this application, the top and tail of the bracket are provided with snap-fit ​​components. When there are at least two brackets, the two adjacent brackets are snapped together by the snap-fit ​​components.

[0017] As a further improvement to the battery anti-foolproof bracket structure of this application, the snap-fit ​​assembly includes a snap-fit ​​protrusion and a recess. The snap-fit ​​protrusion at the top of the bracket engages with the corresponding recess at the tail of the adjacent bracket, and the snap-fit ​​protrusion at the bottom of the bracket engages with the corresponding recess at the top of the adjacent bracket.

[0018] As a further improvement to the battery anti-foolproof bracket structure of this application, the protrusion and recess at the top of the bracket are located on the same side, and the protrusion and recess at the tail of the bracket are located on the same side.

[0019] This application also relates to a battery pack, including any of the frames shown above;

[0020] The frame is equipped with cylindrical batteries, and the positive terminal of the cylindrical batteries is welded to the busbar.

[0021] The frame is assembled inside the battery casing.

[0022] As a further improvement to a battery pack of this application, the frame is provided with at least two, with the side of the busbar away from the positive terminal of the cylindrical battery abutting against the negative terminal of the cylindrical battery in the adjacent frame.

[0023] As a further improvement to one of the battery packs of this application, the frame is equipped with two rows of cylindrical batteries, and the positive terminal of each row of cylindrical batteries is connected through a busbar.

[0024] As a further improvement to a battery pack of this application, the busbar is provided with a welding groove for welding to the positive electrode of a cylindrical battery. Attached Figure Description

[0025] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate the present invention and their descriptions, which are used to explain the present invention and do not constitute an undue limitation of the present invention.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the frame structure in Embodiment 1 of this utility model;

[0028] Figure 2 This is a schematic diagram of the battery anti-mistake bracket structure in Embodiment 2 of this utility model;

[0029] Figure 3 This is a schematic diagram of the battery pack frame in embodiment 3 of this utility model;

[0030] Figure 4 This is a schematic diagram of the battery pack structure in Embodiment 3 of this utility model;

[0031] in:

[0032] 1-Frame;

[0033] 11-Battery slot;

[0034] 12-First error-proof groove;

[0035] 121 - First hollowed-out section;

[0036] 13-Second error-proof groove;

[0037] 131 - Second hollow section;

[0038] 14-Carrot;

[0039] 15-Concave platform;

[0040] 2-Cylindrical battery;

[0041] 3-Bus unit;

[0042] 31-Welding groove. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terminology used in the specification of this application is for the purpose of describing specific embodiments only and is not intended to limit this application.

[0044] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] Although this application discloses preferred embodiments as described above, it is not intended to limit the claims. Any person skilled in the art can make several possible changes and modifications without departing from the concept of this application. Therefore, the scope of protection of this application should be determined by the scope defined in the claims of this application.

[0046] It is known that existing battery brackets, due to their symmetrical shape design and lack of clear assembly orientation identification features, are prone to incorrect assembly by operators. When this error is only discovered after cell welding or electrical connector installation, it not only renders the battery pack unusable but may also damage the internal connection structure, increasing maintenance costs. Furthermore, because traditional brackets do not provide structural adaptation to the space above the cells, the connectors are easily squeezed, bumped, or even detached during the assembly of the module with welded connectors into the battery casing, affecting the module's electrical performance and reliability.

[0047] Furthermore, for the sake of battery pack structural stability, traditional brackets are usually designed to fit tightly to the battery casing. However, while this over-fitting improves stability, it also makes the bracket difficult to disassemble during subsequent maintenance, replacement, or testing, reducing maintenance efficiency and increasing labor and time costs.

[0048] The present invention will be further described in detail below with reference to specific embodiments, but the embodiments of the present invention are not limited thereto.

[0049] Implementation Method 1

[0050] like Figure 1-3 As shown, in order to solve the technical defects in the prior art, this application has made improvements to the existing battery anti-foolproof bracket structure, specifically including a frame 1, in which a plurality of battery slots 11 are provided, and the battery slots 11 are used for assembling batteries.

[0051] Specifically, a first anti-misalignment groove 12 is provided on one side of the frame 1 along its length, and a first cutout portion 121 is provided in the first anti-misalignment groove 12. During the assembly process of the specific support structure and the battery casing, since the misalignment is only in the length direction of the frame 1 (specifically, the length direction is...) Figure 1 A first anti-misalignment groove 12 is provided on one side (in the X direction shown). This anti-misalignment groove, through its asymmetrical design in shape or position, forms a set of assembly restriction structures with the pre-set limiting boss or guide post inside the battery casing, achieving unidirectional limiting fit. At the same time, the first anti-misalignment groove 12 is provided with a partially opened hollow structure. This hollow part can serve as a reserved space for connecting pieces, conductive structures, or positioning buckles, to avoid mechanical interference or provide a local avoidance area.

[0052] Furthermore, when the battery casing is not equipped with guide posts, a certain space will be reserved in the length direction of the frame 1 during the installation process. Thus, when it is necessary to check the connection and welding relationship of the cylindrical batteries 2 in the battery pack, the staff can easily remove the frame 1 from the battery casing through the first anti-fooling groove 12.

[0053] Furthermore, when a limiting boss is pre-set inside the battery casing, the first hollow part 121 is fixedly connected to the battery casing when it corresponds to the limiting boss. This method allows the frame 1 to be stably installed inside the battery casing and is not easily affected by external interference.

[0054] Furthermore, the frame 1 along the width direction (specifically the width direction is...) Figure 1 A second anti-misalignment groove 13 is symmetrically arranged on both sides of the Y-direction shown, and a second hollow portion 131 is provided in the second anti-misalignment groove 13. The second anti-misalignment groove 13 mainly facilitates the installation of the frame 1 and the battery casing, allowing workers to quickly align the guide post inside the battery casing that corresponds to the second anti-misalignment groove 13 for rapid installation. Simultaneously, the second hollow portion 131, when corresponding to the limiting boss, also achieves a fixed connection between the second hollow portion 131 and the battery casing.

[0055] Furthermore, two second anti-mistake grooves 13 are symmetrically arranged on both sides of the frame 1 along the width direction. This design can further enhance the stability of the frame 1 within the battery casing. When the second anti-mistake grooves 13 on both sides cooperate with the corresponding guide posts within the battery casing, the movement of the frame 1 in the width direction will be strictly limited, effectively preventing the frame 1 from shifting or shaking during use.

[0056] It is worth noting that this application does not further limit the structure of the battery casing. This application defines the structure of the first anti-misalignment groove 12 and the second anti-misalignment groove 13, the first hollow portion 121 and the second hollow portion 131 provided in the length and width directions of the frame 1. This design can flexibly adapt to various battery casings with different structures. In practical applications, as long as the battery casing has a guide post or limiting boss that matches the first anti-misalignment groove 12 and the second anti-misalignment groove 13, stable assembly of the frame 1 and the battery casing can be achieved.

[0057] Implementation Method 2

[0058] like Figure 1-4 As shown, unlike embodiment 1, the top and tail of the frame 1 are provided with snap-fit ​​components. When there are at least two frames 1, two adjacent frames 1 are snapped together by the snap-fit ​​components.

[0059] Specifically, the snap-fit ​​assembly includes a snap-fit ​​protrusion 14 and a recess 15. The snap-fit ​​protrusion 14 on the top of the frame 1 snaps into the corresponding recess 15 at the tail of the adjacent frame 1, and the snap-fit ​​protrusion 14 on the bottom of the frame 1 snaps into the corresponding recess 15 on the top of the adjacent frame 1. Through this snap-fit ​​method, multiple frames 1 can be tightly connected together to form a stable overall structure. During battery pack assembly, this snap-fit ​​design not only improves the connection strength between frames 1 but also makes the entire battery anti-foolproof bracket structure more robust and reliable.

[0060] Meanwhile, the snap-fit ​​assembly facilitates the disassembly and replacement of frame 1. When a frame 1 is damaged or needs replacement, it can be completed simply by snapping it in place, greatly improving maintenance efficiency. Furthermore, this snap-fit ​​design has a degree of versatility, adapting to the connection needs of frame 1 of different specifications and sizes.

[0061] Furthermore, the protrusion 14 and the recess 15 at the top of the frame 1 are located on the same side, and the protrusion 14 and the recess 15 at the tail of the frame 1 are located on the same side.

[0062] Other aspects that are the same as in Implementation Method 1 will not be described again in this implementation method.

[0063] Implementation Method 3

[0064] like Figure 1-4As shown, unlike Embodiment 1, this application also designs a battery pack, including a frame 1 as shown in any of Embodiments 1-2 above; a cylindrical battery 2 is assembled inside the frame 1, and the positive electrode of the cylindrical battery 2 is welded to the current collector 3; the frame 1 is assembled inside the battery casing.

[0065] Specifically, the frame 1 is provided with at least two busbars 3, the side of which is away from the positive terminal of the cylindrical battery 2 and abuts against the negative terminal of the cylindrical battery 2 in the adjacent frame 1. The frame 1 is equipped with two rows of cylindrical batteries 2, and the positive terminal of each row of cylindrical batteries 2 is connected through the busbar 3.

[0066] The busbar 3 is equipped with a welding groove 31 for welding to the positive electrode of the cylindrical battery 2. Thus, by welding the busbar 31 to the positive electrode of the cylindrical battery 2, effective current convergence and conduction are achieved. Simultaneously, the side of the busbar 3 furthest from the positive electrode of the cylindrical battery 2 abuts against the negative electrode of the cylindrical battery 2 in the adjacent frame 1, forming a complete circuit loop and ensuring the stability and reliability of the battery pack. This design not only improves the energy density of the battery pack but also makes assembly and maintenance more convenient and efficient.

[0067] Other aspects that are the same as in Implementation Method 1 will not be described again in this implementation method.

[0068] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery anti-mistake bracket structure, characterized in that, Including the frame; The frame is provided with multiple battery slots, which are used to assemble batteries. The frame is provided with a first anti-mistake groove on one side along its length, and a first hollow part is provided in the first anti-mistake groove; The frame is provided with at least one; The frame is assembled onto the battery casing.

2. The battery anti-mistake bracket structure according to claim 1, characterized in that, The frame is symmetrically provided with second anti-mistake grooves on both sides along the width direction, and the second anti-mistake grooves are provided with second hollow parts.

3. The battery anti-foolproof bracket structure according to claim 2, characterized in that, The frame is symmetrically provided with two second anti-mistake grooves on both sides along the width direction.

4. The battery anti-mistake bracket structure according to claim 1, characterized in that, The top and rear of the frame are provided with snap-fit ​​components. When there are at least two frames, two adjacent frames are snapped together by the snap-fit ​​components.

5. The battery anti-foolproof bracket structure according to claim 4, characterized in that, The snap-fit ​​assembly includes a snap-fit ​​protrusion and a recess. The snap-fit ​​protrusion at the top of the frame engages with the recess corresponding to the tail of the adjacent frame, and the snap-fit ​​protrusion at the bottom of the frame engages with the recess corresponding to the top of the adjacent frame.

6. The battery anti-foolproof bracket structure according to claim 5, characterized in that, The protruding part and the recessed platform at the top of the frame are located on the same side, and the protruding part and the recessed platform at the tail of the frame are located on the same side.

7. A battery pack, characterized in that, Includes a battery anti-foolproof bracket structure as described in any one of claims 1-6, wherein a cylindrical battery is assembled in the bracket body, and the positive electrode of the cylindrical battery is welded to the busbar. The frame is assembled inside the battery casing.

8. A battery pack according to claim 7, characterized in that, The frame is provided with at least two, and the side of the busbar away from the positive terminal of the cylindrical battery abuts against the negative terminal of the cylindrical battery in the adjacent frame.

9. A battery pack according to claim 7, characterized in that, The frame is equipped with two rows of cylindrical batteries, and the positive terminal of each row of cylindrical batteries is connected through a busbar.

10. A battery pack according to claim 7, characterized in that, The busbar is provided with a welding groove, which is used for welding to the positive electrode of the cylindrical battery.

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