Integrated module support

Abstract

The utility model belongs to battery technical field, specifically discloses an integrated module support, including support main part, the edge of support main part is board frame type structure, board frame type structure is fixed with battery module outer box, be equipped with a plurality of subsided pole lug support on support main part, be equipped with two groups of pole lug mounting subassembly in pole lug support, every group of pole lug mounting subassembly includes n group of pole lug holes and 2n group of transition strips, n group of pole lug holes parallel arrangement along the length direction of pole lug support and run through pole lug support, every group of pole lug hole both sides are equipped with transition strip, two groups of transition strips between two groups of pole lug holes form the accommodation cavity for installing battery connecting piece, after the battery connecting piece is fixed after the pole lug of electricity core pole lug is worn out pole lug hole. Can realize the installation of a plurality of battery small module, support whole installation is on battery module outer box, improve the structural strength of battery package whole, reduce the number of battery package parts, reduce the fixing difficulty of battery module.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, and in particular relates to an integrated module bracket. Background Technology

[0002] With the development of various technologies and applications in the new energy field, and the changes in the current international situation, lithium-ion batteries have been widely used in the new energy field due to their advantages such as light weight, high energy density, good safety performance, long cycle life and large battery capacity.

[0003] Currently, the lithium battery packs used in electric motorcycles on the market are mainly below 72V, and the power requirements are relatively low. Multiple cells can be connected in series to form a battery module, which meets the voltage and power requirements of motorcycle battery packs. However, as the market demands higher performance, longer charging times, and longer driving ranges for electric motorcycles, high-voltage lithium battery packs such as 84V and 96V have emerged, with power capacities between or even higher than (5-6) kWh. These battery packs require multiple modules connected in series and parallel. Typically, each module is paired with a battery tab bracket to form a small module unit. These small module units are then regularly arranged inside the battery pack casing to achieve the series and parallel connection of the battery modules. This method increases the number of battery pack components, increases the difficulty of fixing the modules inside the battery pack, and is not conducive to the current requirements for lightweight battery pack structures. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated module bracket that can realize the installation of multiple small battery modules. The bracket is installed on the outer casing of the battery module, which improves the overall structural strength of the battery pack, reduces the number of battery pack parts, and reduces the difficulty of fixing the battery module.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: an integrated module bracket, comprising a bracket body, the edge of which is a plate frame structure; the plate frame structure is fixed to the outer casing of the battery module; the bracket body is provided with multiple recessed tab brackets along its length, the tab brackets being used to install small battery modules; the bracket body and the tab brackets are integrally formed.

[0006] The tab bracket has two sets of tab mounting assemblies arranged side-by-side along its width. These two sets of tab mounting assemblies are used to mount the positive and negative tabs, respectively. Each set of tab mounting assemblies includes n sets of tab holes and 2n sets of transition strips. The n sets of tab holes are arranged parallel to and penetrate the tab bracket along its length. Each set of tab holes has transition strips on both sides, parallel to the tab holes, with the inner side of the transition strip coinciding with the tab hole. The sides of the transition strip are longer than the tab holes, and the height of the transition strip is the same as the thickness of the battery connecting piece. The two sets of transition strips between adjacent sets of tab holes form a receiving cavity for mounting the battery connecting piece. After the cell tabs pass through the tab holes, the battery connecting piece is fixed.

[0007] Furthermore, positioning pins are provided on both sides of the receiving cavity, and the positioning pins match the positioning holes on the battery connecting piece; the upper side of the positioning pin is provided with a connecting thread section, and the nut fixes the battery connecting piece in the receiving cavity by threaded connection with the connecting thread section.

[0008] Furthermore, the length of both sides of the transition strip is 2-3 mm longer than the length of the tab hole.

[0009] Furthermore, the electrode bracket has fixing posts on both sides along its length, and each fixing post has a first connecting hole. The first connector fixes the battery busbar through the first connecting hole.

[0010] Furthermore, the plate-frame structure is provided with second connecting holes on all four sides, and the second connectors fix the bracket body to the outer casing of the battery module through the second connecting holes; the outer periphery of the plate-frame structure is flush with the outer periphery of the outer casing of the battery module; the bottom of the tab bracket is a planar structure.

[0011] Furthermore, the width of the tab hole is 2 to 3 times the thickness of the battery cell tab, and the length of the tab hole is 1.1 to 1.3 times the width of the battery cell tab.

[0012] Furthermore, a groove is left between two adjacent tab supports, which is used to provide a place for the partition inside the battery module's outer casing.

[0013] Furthermore, the electrode support is inclined inward on all four sides, forming a structure that is larger at the top and smaller at the bottom.

[0014] Furthermore, the tab support is tilted inward at 5° to 10° on all four sides.

[0015] Furthermore, the thickness of the plate frame of the main body of the bracket is equal to the thickness of the tab bracket.

[0016] The beneficial effects of this technical solution are as follows:

[0017] ① The tab brackets separate the electrical connections of multiple small battery modules from the main body of the battery cell assembly, improving the overall insulation and electrical safety of the battery pack. Multiple tab brackets are integrally molded, fixing the outer frame structure of the bracket body to the outer casing of the battery module, increasing the overall structural strength of the battery pack, reducing the number of battery pack components, and lowering the difficulty of fixing the battery modules.

[0018] ② Transition strips are provided on both sides of the tab hole. Positioning pins are provided on both sides of the length direction of the two tab transition strips between adjacent tab holes for positioning and fixing the battery connecting piece. Fixing posts are provided on both sides of the length direction of the tab bracket for fixing the battery busbar, preventing the battery connecting piece or battery busbar from moving and rotating, which would cause the battery pack to fail, and improving the overall electrical safety and structural strength of the battery pack.

[0019] ③ The tabs are all tilted inwards on all sides, and the thickness of the tab support is the same as the thickness of the main frame of the support, which helps to reduce the overall weight of the support and improve the energy density of the battery pack.

[0020] ④ The bottom of the tab bracket has a flat structure, which increases the contact area with the upper surface of the battery cell module, and can further increase the overall fixing strength of the battery pack.

[0021] ⑤ The width of the tab hole is 2 to 3 times the thickness of the battery cell tab, and the length is 1.1 to 1.3 times the width of the battery cell tab. This helps to improve the assembly efficiency of the battery cell tab and effectively avoid damage to the battery cell tab.

[0022] ⑥ After the cell tabs pass through the tab holes, they are fixed on the battery connecting pieces inside the housing cavity. This prevents the battery connecting pieces from scratching the cell tabs on both sides, which could cause the battery pack to fail. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the integrated module bracket of this utility model;

[0024] Figure 2 for Figure 1 The main view;

[0025] Figure 3 for Figure 1 Top view;

[0026] Figure 4 for Figure 1 A bottom view;

[0027] Figure 5 for Figure 3 A sectional view;

[0028] Figure 6 This is a schematic diagram showing the installation of the integrated module bracket and the outer casing of the battery module.

[0029] Figure 7 for Figure 6 Top view;

[0030] Figure 8 for Figure 7 A magnified view of a portion of the image. Detailed Implementation

[0031] The following detailed description illustrates the specific implementation method:

[0032] The reference numerals in the accompanying drawings include: bracket body 1, tab bracket 2, second connecting hole 3, fixing post 4, first connecting hole 5, positioning pin 6, transition strip 7, receiving cavity 8, tab hole 9, battery module outer casing 10, second connector 11, battery busbar 12, battery connecting piece 13, cell tab 14.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] The basic implementation examples are as follows: Figure 1-8 As shown: An integrated module bracket includes a bracket body 1, the edges of which are plate-frame structures. The plate-frame structure is fixed to the battery module outer casing 10. Second connecting holes 3 (specifically screw holes) are provided around the perimeter of the plate-frame structure, and these holes are equidistant. Second connecting pieces 11 (specifically screws) fix the bracket body 1 to the battery module outer casing 10 through the second connecting holes 3. The screw connection further strengthens the fixation to the battery module outer casing 10, increasing the overall structural strength of the battery pack. The outer perimeter of the plate-frame structure is flush with the outer perimeter of the battery module outer casing 10.

[0035] The support body 1 has multiple recessed tab supports 2 along its length (three are used in this embodiment). The tab supports 2 are used to install small battery modules. The support body 1 and the tab supports 2 are integrally formed. The bottom of the tab supports 2 is a flat structure, which increases the contact area with the upper surface of the battery cell of the small battery module, further increasing the overall fixing strength of the battery pack. A groove is left between two adjacent tab supports 2 to provide space for the partition inside the outer casing 10 of the battery module. The tab supports 2 are inclined inward at 5° to 10° on all four sides, forming a structure that is larger at the top and smaller at the bottom. The thickness of the frame of the support body 1 and the thickness of the tab supports 2 are equal, which helps to reduce the overall weight of the support and improve the energy density of the battery pack.

[0036] Two sets of tab mounting assemblies are arranged side-by-side along the width direction inside the tab bracket 2. These two sets are used to install the positive and negative tabs, respectively. Each set of tab mounting assemblies includes n sets of tab holes 9 and 2n sets of transition strips 7. The n sets of tab holes 9 are arranged parallel to and penetrate the tab bracket 2 along its length. The width of the tab hole 9 is 2 to 3 times the thickness of the cell tab 14, and the length of the tab hole 9 is 1.1 to 1.3 times the width of the cell tab 14. Each set of tab holes 9 has transition strips 7 on both sides, which are parallel to the tab hole 9. The inner side of the transition strip 7 coincides with the tab hole 9 (i.e., their inner sides are flush). The length of the transition strip 7 beyond the tab hole 9 on both sides is 2 to 3 mm. The height of the transition strip 7 is the same as the thickness of the battery connecting piece 13. Two sets of transition strips 7 between two adjacent sets of tab holes 9 form a receiving cavity 8 for installing battery connecting piece 13; after the cell tab 14 passes through the tab hole 9, the battery connecting piece 13 is welded and fixed.

[0037] Positioning pins 6 are provided on both sides of the receiving cavity 8, and the positioning pins 6 match the positioning holes on the battery connecting piece 13; the upper side of the positioning pin 6 is provided with a connecting thread section, and the nut is fixed in the receiving cavity 8 by threaded connection with the connecting thread section. Fixing posts 4 are provided on both sides of the electrode bracket 2 in the length direction, and the fixing posts 4 are provided with first connecting holes 5 (screw holes), and the first connector (screw) is fixed to the battery busbar 12 through the first connecting holes 5.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An integrated modular bracket, characterized in that: The system includes a support body (1), the edges of which are plate-frame structures; the plate-frame structures are fixed to the outer casing (10) of the battery module; the support body (1) has multiple recessed tab supports (2) along its length, the tab supports (2) being used to install small battery modules; the support body (1) and the tab supports (2) are integrally formed. The tab support (2) has two sets of tab mounting assemblies arranged side by side along its width. The two sets of tab mounting assemblies are used to install the positive tab and the negative tab, respectively. Each set of tab mounting assemblies includes n sets of tab holes (9) and 2n sets of transition strips (7). The n sets of tab holes (9) are arranged parallel to each other along the length of the tab support (2) and penetrate the tab support (2). Each set of tab holes (9) has transition strips (7) on both sides. Parallel to the tab hole (9), the inner side of the transition strip (7) coincides with the tab hole (9), the two sides of the transition strip (7) are longer than the tab hole (9), and the height of the transition strip (7) is the same as the thickness of the battery connecting piece (13); the two sets of transition strips (7) between two adjacent sets of tab holes (9) form a receiving cavity (8) for installing the battery connecting piece (13); the battery connecting piece (13) is fixed after the cell tab (14) passes through the tab hole (9).

2. The integrated module bracket according to claim 1, characterized in that: The cavity (8) is provided with positioning pins (6) on both sides, and the positioning pins (6) match the positioning holes on the battery connecting piece (13); the upper side of the positioning pin (6) is provided with a connecting thread section, and the nut fixes the battery connecting piece (13) in the cavity (8) by threading with the connecting thread section.

3. The integrated module bracket according to claim 1, characterized in that: The length of both sides of the transition strip (7) is 2-3 mm longer than the length of the tab hole (9).

4. The integrated module bracket according to claim 1, characterized in that: The tab bracket (2) has fixing posts (4) on both sides along its length. The fixing posts (4) have first connecting holes (5). The first connector fixes the battery busbar (12) through the first connecting holes (5).

5. The integrated module bracket according to claim 1, characterized in that: The plate frame structure is provided with second connecting holes (3) on all four sides. The second connecting piece (11) fixes the bracket body (1) to the battery module outer box (10) through the second connecting holes (3). The outer periphery of the plate frame structure is flush with the outer periphery of the battery module outer box (10). The bottom of the tab bracket (2) is a planar structure.

6. The integrated module bracket according to claim 1, characterized in that: The width of the tab hole (9) is 2 to 3 times the thickness of the battery cell tab (14), and the length of the tab hole (9) is 1.1 to 1.3 times the width of the battery cell tab (14).

7. The integrated module bracket according to claim 1, characterized in that: A groove is left between two adjacent tab supports (2), which is used to leave space for the partition inside the outer casing (10) of the battery module.

8. The integrated module bracket according to claim 1, characterized in that: The electrode bracket (2) is inclined inward on all four sides, forming a structure that is larger at the top and smaller at the bottom.

9. The integrated module bracket according to claim 8, characterized in that: The electrode bracket (2) is tilted inward at 5° to 10° on all four sides.

10. The integrated module bracket according to claim 1, characterized in that: The thickness of the plate frame of the support body (1) is equal to the thickness of the tab support (2).

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