Reinforcing structure and battery module

Abstract

The utility model belongs to the technical field of batteries, and provides a reinforcing structure and a battery module, the reinforcing structure comprises a side plate and an end plate; the side plates are symmetrically installed at the two ends of the end plate. A plurality of bending parts are arranged at two ends of the side plates; the bending part at one end of the side plate is detachably connected with the end plate, and the bending part at the other end abuts against the end plate; the multiple end plates are symmetrically installed at the two ends of the side plates. According to the utility model, the plurality of bending parts are arranged on the side plates, one bending part is connected with the end plate, so that the structural strength of the side plates and the battery cell module is improved, and then one bending part is used for carrying the battery cell, so that the structural strength of the side plates and the battery cell module is further improved; the side plate structure is integrally formed, the structure is simple and compact, and the manufacturing cost and the process are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery technical field, especially relate to a kind of reinforcing structure and battery module. BACKGROUND

[0002] In battery module, the module of end side plate structure is generally mainly composed of end plate, side plate and electric core. Side plate can be connected with electric core and end plate, thereby improving the rigidity of module. And the side plate of module is generally flat plate structure, and the rigidity provided by flat plate structure side plate is limited, if module design is too large and too long, when further improving the rigidity of module is needed, then the side plate structure stronger than flat plate needs to be designed. SUMMARY

[0003] In order to solve the problems in the background art, the utility model provides a kind of reinforcing structure and battery module.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A reinforcing structure, comprising a side plate and an end plate;

[0006] The side plate is provided with several, and symmetrically installed at both ends of the end plate;

[0007] The side plate is provided with several bending parts at both ends;

[0008] The bending part at one end of the side plate is detachably connected with the end plate, and the bending part at the other end abuts against the end plate;

[0009] The end plate is provided with several, and symmetrically installed at both ends of the side plate.

[0010] Preferably, the side plate comprises a vertical panel, and the bending part comprises an upper bending part and a lower bending part;

[0011] The vertical panel is a flat plate;

[0012] The upper bending part is symmetrically arranged at one end of the vertical panel, and faces the end plate;

[0013] The lower bending part is arranged at the other end of the vertical panel, and faces the end plate.

[0014] Preferably, the vertical panel is provided with two and symmetrically installed at both ends of the end plate.

[0015] Preferably, the upper bending part is provided with two, and located at the edge of the vertical panel;

[0016] The lower bending part is provided with one, and located at the other edge of the vertical panel.

[0017] Preferably, the facade panel, the upper bending part and the lower bending part are integrally formed.

[0018] Preferably, the upper bending part is a planar panel, and the lower bending part is a planar panel.

[0019] Preferably, a through hole is formed on the surface of the upper bending part, and the through hole is used for mounting a bolt connected with the end plate.

[0020] Preferably, the end plate is a symmetrical rectangular plate, and a symmetrical matching hole is formed on the surface of any rectangular plate.

[0021] Preferably, in the reinforcing structure, the surface of the end plate, on which the matching hole is formed, is overlapped with the upper bending part, and the matching hole is aligned with the through hole.

[0022] The aligned matching hole and the through hole are bolted.

[0023] The inner surface of the lower bending part is abutted with the end plate.

[0024] A battery module comprises a plurality of battery cells.

[0025] All the battery cells are glued in the reinforcing structure, and the bending part abutted with the end plate is used for supporting the battery cells.

[0026] The beneficial effects of the present application are as follows:

[0027] 1. The present application sets a plurality of bending parts on the side plate, one of which is connected with the end plate, which is conducive to improving the structural strength of the side plate and the battery cell module, and then one bending part is used for supporting the battery cells, further improving the structural strength of the side plate and the battery cell module.

[0028] 2. The side plate structure of the present application is integrally formed, simple and compact in structure, and the manufacturing cost and process are reduced.

[0029] Other features and advantages of the present application will be described in the following description, and some of them will become apparent from the description, or will be understood by those skilled in the art, or will be understood by implementing the present application. The purpose and other advantages of the present application can be achieved and obtained by the structure indicated in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0031] Figure 1 A schematic diagram of a reinforcing structure according to this utility model is shown;

[0032] Figure 2 An axonometric perspective view of the side plate of this utility model is shown;

[0033] Figure 3 An assembly diagram of the side plate, end plate, and battery cell of this utility model is shown;

[0034] Figure 4 A partial view of the cross-section of the end plate of this utility model is shown;

[0035] Figure 5 An isometric perspective view of a battery module according to this utility model is shown.

[0036] In the diagram: 1. Side plate; 101. Vertical panel; 102. Upper bend; 103. Lower bend; 104. Through hole; 2. End plate; 201. Mating hole; 3. Battery cell. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] like Figure 1 As shown, a reinforced structure includes two side plates 1 and an end plate 2. Specifically, the side plates 1 are symmetrically mounted on both ends of the end plate 2, and each side plate 1 has two types of bends. The first type of bend is located at the upper end of the side plate 1, and this bend is detachably connected to the end plate 2 by bolts. This connection method not only facilitates installation, but also allows for easy disassembly during later maintenance, repair, or component replacement, greatly improving the maintainability of the battery casing. The second type of bend is located at the lower end of the side plate 1 and abuts against the end plate 2. The main function of this bend is to support the battery cell 3. The battery cell 3 is glued into the casing structure (the inner cavity formed by the side plates 1 and the end plate 2). This inner cavity provides a stable and safe placement space for the battery cell 3, ensuring its normal operation within the battery casing.

[0039] like Figure 2As shown, the side plate 1 is mainly composed of a facade plate 101, which is a flat plate structure. The bending part includes an upper bending part 102 and a lower bending part 103. At the upper end, two upper bending parts 102 are symmetrically distributed at the edge of one end of the facade plate 101, and both are directed towards the end plate 2. This design not only enhances the stability of the connection between the side plate 1 and the end plate 2, but also optimizes the mechanical properties of the overall structure. At the lower end, the other edge of the facade plate 101 is provided with a lower bending part 103, which is also directed towards the end plate 2. The design of the lower bending part 103 further improves the connection mode of the side plate 1 and the end plate 2, ensuring the integrity and stability of the overall structure.

[0040] It should be noted that the facade plate 101, the upper bending part 102 and the lower bending part 103 are integrally formed. In addition, the surface of the upper bending part 102 is provided with a through hole 104, which is used to install the bolt connected to the end plate 2.

[0041] As a preferred solution, the facade plate 101 of the side plate 1 can be fixed to the end plate 2 by welding. Welding connection has many advantages, it can form a tighter and more stable combination, effectively enhance the structural strength and stability of the battery shell as a whole. During the use of the battery, this firm connection can better resist the influence of external factors such as vibration, impact, etc. on the battery structure, reduce the risk of parts loosening and displacement, and thus ensure the reliable operation of the battery under complex working conditions. At the same time, the welding process avoids the gaps that may exist in bolt connection, reduces the risk of impurities such as dust and moisture entering the battery, and further improves the protection performance of the battery.

[0042] As a preferred solution, the upper bending part 102 is a flat plate, and the lower bending part 103 is a flat plate, so as to cooperate with the end plate 2.

[0043] As shown in Figure 4 , the end plate 2 is specifically provided as a rectangular plate symmetrically installed with the side plate 1 as the center, and symmetrically provided with a matching hole 201 on the surface of any rectangular plate.

[0044] In addition, it can be known from Figure 3 and Figure 4 that in actual assembly, the surface of the end plate 2 provided with the matching hole 201 is overlapped with the upper bending part 102 of the side plate 1, and the matching hole 201 is aligned with the through hole 104, and finally the matching hole 201 and the through hole 104 are fixed and connected by bolts. This connection mode can ensure the close combination between the end plate 2 and the side plate 1, and can also effectively transfer and disperse structural stress, thereby improving the overall strength of the battery shell. In addition, the inner surface of the lower bending part 103 of the side plate 1 plays an important role in supporting and loading the battery cell 3, and provides a reliable support foundation for the battery cell 3, thereby ensuring the stability and safety of the battery during operation.

[0045] In summary, the above-mentioned side plate 1 structure strengthens the connection between the side plate 1 and the module twice through the upper and lower bending plates, which greatly improves the rigidity performance of the module.

[0046] like Figure 5 As shown, a battery module includes several battery cells 3. All battery cells 3 are bonded to the above-mentioned reinforcing structure, and the bent portion that abuts against the end plate 2 supports the battery cells 3.

[0047] It should be noted that the battery cells 3 are all the same size and are neatly arranged inside the cavity of the casing structure.

[0048] As an optional solution, the assembly process of the above-mentioned housing structure and battery module is as follows:

[0049] First, thermally conductive and insulating adhesive is evenly applied to the inner side of the vertical panel 101 and the upper surface of the lower bend 103 of the side panel 1. Before applying the adhesive, the surface of the side panel 1 is thoroughly cleaned and pre-treated to remove oil, impurities, etc., improving the adhesion of the adhesive. During the adhesive application process, the thickness and uniformity of the adhesive are monitored in real time. Based on the data fed back from the sensors, the adhesive application equipment is adjusted in a timely manner to ensure that the thickness and uniformity of the adhesive application meet the precise process requirements, providing a reliable guarantee for subsequent connections.

[0050] Next, the side plate 1, after being coated with adhesive, is moved to the side of the module. Using a positioning tool, the inner side of the vertical panel 101 is perfectly aligned with the side of the battery cell 3, and the upper surface of the lower bend 103 is tightly aligned with the bottom of the battery cell 3, ensuring a tight and seamless connection between the side plate 1 and the battery cell 3, avoiding gaps or misalignment. The upper bend 102 is then connected to the end plate 2 using bolts, and the adhesive is allowed to cure.

[0051] After the glue has completely cured, clean the welding area. Figure 2 The A and B areas are cleaned and polished again to ensure the quality of the welded surface. During the welding process, the operation is strictly carried out according to the pre-set parameters such as current, voltage, and welding time. The welding quality is monitored in real time, and inspection methods such as weld flaw detection are used to ensure that the welding quality meets the design requirements, forming a firm connection between side plate 1 and end plate 2. Then, the upper bend 102 and end plate 2 are firmly fixed to the box body together with a high-strength stainless steel tie rod. After fixing, a comprehensive quality inspection of the entire module is carried out, including structural strength testing, electrical performance testing, and heat dissipation performance testing. This ensures that the connection between side plate 1 and module is reinforced twice by the upper bend 102 and the lower bend 103, which greatly improves the rigidity of the module, enabling it to meet the requirements of various complex working conditions.

[0052] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A reinforcing structure, characterized in that, Includes side plates (1) and end plates (2); The side plates (1) are provided in several parts and are symmetrically installed at both ends of the end plates (2); The side plate (1) has several bends at both ends; The bent portion at one end of the side plate (1) is detachably connected to the end plate (2), and the bent portion at the other end abuts against the end plate (2); The end plates (2) are provided in several units and are symmetrically installed at both ends of the side plates (1).

2. The reinforcing structure according to claim 1, characterized in that, The side panel (1) includes a vertical panel (101), and the bending portion includes an upper bending portion (102) and a lower bending portion (103); The vertical panel (101) is a flat plate; The upper bend (102) is symmetrically arranged at one end of the vertical panel (101) and faces the end plate (2); The lower bend (103) is located at the other end of the vertical panel (101) and faces the end plate (2).

3. The reinforcing structure according to claim 2, characterized in that, Two vertical panels (101) are provided and symmetrically installed at both ends of the end plate (2).

4. The reinforcing structure according to claim 2, characterized in that, Two upper bending portions (102) are provided and are located at the edges of the vertical panel (101); One lower bend (103) is provided and is located at the other edge of the vertical panel (101).

5. The reinforcing structure according to claim 4, characterized in that, The vertical panel (101), the upper bend (102), and the lower bend (103) are integrally formed structures.

6. A reinforcing structure according to claim 2, characterized in that, The upper bend (102) is a flat plate, and the lower bend (103) is a flat plate.

7. A reinforcing structure according to claim 2, characterized in that, The upper bent portion (102) has a through hole (104) on its surface, and the through hole (104) is used to install bolts that are connected to the end plate (2).

8. A reinforcing structure according to claim 7, characterized in that, The end plate (2) is a symmetrical rectangular plate, and symmetrical mating holes (201) are provided on the surface of any rectangular plate.

9. A reinforcing structure according to claim 8, characterized in that, In the reinforcing structure, the surface of the end plate (2) with the mating hole (201) overlaps with the upper bent portion (102), and the mating hole (201) is aligned with the through hole (104); The aligned mating hole (201) is bolted to the through hole (104); The inner surface of the lower bend (103) abuts against the end plate (2).

10. A battery module, characterized in that, Including several battery cells (3); All of the said cells (3) are bonded in the reinforcing structure according to any one of claims 1-9, and the bent portion that abuts against the end plate (2) is used to support the cells (3).

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