Battery module structure

Abstract

The utility model discloses a battery module structure. The battery module structure comprises a module mounting frame, and a battery cell and a box body assembly which are fixed on the module mounting frame, the box body assembly comprises an end plate positioned at the end part of the battery cell and a side plate positioned on the side surface of the battery cell. A supporting structure extending outwards is arranged in the middle of the side face of each end plate. Supporting frames matched with the supporting structures are arranged at the two ends of the module mounting frame. The supporting structure is fixedly connected with the supporting frame. According to the utility model, the support structure extending outwards is arranged in the middle of the side surface of the end plate, and the support structure is fixed with the support frame through the bolt, so that the battery module can be further fixed, meanwhile, the force borne by the battery module can be shared, and the structural strength of the peripheral protection structure of the battery module is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of forklift battery, concretely relates to a battery module structure. BACKGROUND

[0002] In prior art, energy saving and emission reduction is the key of sustainable development, and new energy battery system becomes an important part of sustainable development due to its energy saving and environmental protection advantages, and more and more places, industrial equipment and vehicles are equipped with battery system.

[0003] The traditional battery module is usually fixed by bottom fixing or embedded in the box body. However, when the battery system works in a relatively harsh environment, especially works in a strong vibration working condition for a long time, the existing module has a structure strength difficult to meet the mechanical strength requirement, and is easy to cause the damage or separation of the bottom connecting part due to long-time vibration, thereby causing the damage of the battery module. UTILITY MODEL CONTENTS

[0004] In order to make up for the deficiency of prior art, the utility model provides a battery module structure to solve the technical problem of insufficient mechanical strength of the existing battery module.

[0005] To achieve the above purpose, the specific technical scheme of the utility model is as follows:

[0006] A battery module structure comprises a module mounting frame, and a battery cell and a box assembly fixed on the module mounting frame. The box assembly comprises an end plate at the end of the battery cell, and a side plate at the side of the battery cell.

[0007] The side surface of the end plate is provided with a support structure extending outward. The two ends of the module mounting frame are provided with a support frame matched with the support structure. The support structure and the support frame are fixedly connected.

[0008] Further, the end plate comprises an upper end plate and a lower end plate arranged in sequence along the vertical direction. The bottom of the upper end plate is provided with a first support part. The top of the lower end plate is provided with a second support part. The first support part and the second support part abut to form a support structure extending outward.

[0009] Further, the two sides of the upper end plate and the lower end plate are provided with mounting edges formed by bending. The mounting edges on the upper end plate and the lower end plate abut against the side plate and are fixed by bolts.

[0010] Further, the bottom of the side plate is provided with a positioning edge. The inner walls of the two side plates and the positioning edges jointly form an installation space matched with the upper end plate and the lower end plate. The upper end plate and the lower end plate are embedded in the installation space.

[0011] Further, the bottom of the lower end plate is provided with a mounting part formed by bending.

[0012] Further, the first support part is provided with a plurality of reinforcing rib structures arranged at intervals.

[0013] Further, the first support part and the second support part are respectively formed by bending the upper end plate and the lower end plate.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model discloses a support structure is arranged on the side surface middle part of the end plate, and the support structure is fixed with the support frame through the bolt, so that the battery module can be further fixed, and the force borne by the battery module can be shared, and the structural strength of the peripheral protection structure of the battery module is improved.

[0016] 2. The utility model discloses a positioning edge formed by bending is arranged on the bottom of the side plate. The inner wall of the two side plates and the positioning edge form the mounting space matched with the upper end plate and the lower end plate, and the upper end plate and the lower end plate can be preliminarily fixed in the mounting space in the embedded mode, so that the subsequent installation of the upper end plate and the lower end plate is facilitated. DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the structure schematic diagram of the battery cell and the box assembly in the utility model;

[0019] Figure 3 It is the structure schematic diagram of the end plate in the utility model;

[0020] Figure 4 It is the explosion schematic diagram of the utility model.

[0021] Fig. 1, module mounting frame;2, battery cell;3, box assembly;3-1, end plate;3-1-1, upper end plate;3-1-2, lower end plate;3-2, side plate;4, support structure;4-1, first support part;4-2, second support part;5, support frame, 6, positioning edge;7, mounting edge;8, mounting part;9, reinforcing rib structure. DETAILED DESCRIPTION

[0022] In the description of the utility model, it is understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "central", "end", "length", "outer end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0023] The utility model will be further described below in combination with the drawings.

[0024] As shown in Figure 1 and 2 , a battery module structure comprises a module mounting frame, and a cell and a box assembly fixed on the module mounting frame. Wherein, the box assembly comprises two end plates located at the two side ends of the cell, and two side plates located at the two side faces of the cell. The periphery of each end plate and side plate is outside the outer ring of the cell, forming a protection structure for the cell.

[0025] The middle part of the side face of the end plate is provided with a support structure extending outward. The two ends of the module mounting frame are provided with a support frame matched with the support structure. The support structure is fixed with the support frame through bolts, which can fix the battery module, share the force borne by the battery module, and improve the structural strength of the peripheral protection structure of the battery module.

[0026] As shown in Figure 2 , the end plate comprises an upper end plate and a lower end plate arranged in sequence along the vertical direction. Wherein, the bottom of the upper end plate is provided with a first support part formed by bending. The top of the lower end plate is provided with a second support part formed by bending. The first support part and the second support part abut to form a support structure extending outward. The support structure increases the stress area of the whole box assembly, and further improves its structural strength.

[0027] As shown in Figure 3 and 4 , the bottom of the side plate is provided with a bending formed positioning edge. The inner walls of the two side plates and the positioning edges form an installation space matched with the upper end plate and the lower end plate. The upper end plate and the lower end plate are embedded in the installation space.

[0028] Further, the two sides of the upper end plate and the lower end plate are provided with mounting edges formed by bending. The mounting edges on the upper end plate and the lower end plate abut against the side plate and are fixed by bolts.

[0029] In this embodiment, the bottom of the lower end plate is provided with a mounting part formed by bending. The mounting part is fixed with the module mounting frame through bolts, further improving the stability of the cell installation.

[0030] In addition, in the embodiment, the first support part of the upper end plate is provided with two reinforcing rib structures arranged at intervals, which are used to improve the structural strength of the first support part.

[0031] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery module structure, comprising a module mounting frame (1), and a cell (2) and a box assembly (3) fixed on the module mounting frame (1); the box assembly (3) comprises an end plate (3-1) located at the end of the cell (2), and a side plate (3-2) located at the side of the cell (2), characterized in that: The side middle part of the end plate is provided with a support structure (4) extending outward; the two ends of the module mounting frame (1) are provided with support frames (5) matched with the support structure (4); the support structure (4) is fixedly connected with the support frame (5).

2. The battery module structure of claim 1, wherein: The end plate (3-1) comprises an upper end plate (3-1-1) and a lower end plate (3-1-2) arranged in sequence along the vertical direction; the bottom of the upper end plate (3-1-1) is provided with a first support part (4-1); the top of the lower end plate (3-1-2) is provided with a second support part (4-2); the first support part (4-1) and the second support part (4-2) abut to form a support structure (4) extending outward.

3. The battery module structure of claim 2, wherein: Both sides of the upper end plate (3-1-1) and the lower end plate (3-1-2) are provided with mounting edges (7) formed by bending; the mounting edges (7) on the upper end plate (3-1-1) and the lower end plate (3-1-2) abut with the side plates (3-2) and are fixed by bolts.

4. The battery module structure of claim 2, wherein: The bottom of the side plate (3-2) is provided with a positioning edge (6); the inner walls of the two side plates (3-2) and the positioning edge (6) form an installation space matched with the upper end plate (3-1-1) and the lower end plate (3-1-2); the upper end plate (3-1-1) and the lower end plate (3-1-2) are embedded in the installation space.

5. The battery module structure of claim 2, wherein: The bottom of the lower end plate (3-1-2) is provided with a mounting part (8) formed by bending; the mounting part (8) is fixed with the module mounting frame (1) by bolts.

6. The battery module structure of claim 2, wherein: A plurality of reinforcing rib structures (9) are arranged on the first support part (4-1).

7. The battery module structure of claim 2, wherein: The first support part (4-1) and the second support part (4-2) are respectively formed by bending the upper end plate (3-1-1) and the lower end plate (3-1-2).

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