Battery module with explosion-proof performance

Abstract

The utility model discloses a battery module with explosion-proof performance, which relates to the technical field of power batteries and comprises a battery module body, a plurality of battery monomers are mounted in the battery module body, explosion-proof valves are mounted on the battery monomers, and the explosion-proof valves are connected with the battery module body. A mounting cover for sealing the plurality of battery monomers in the battery module body is hinged to the top end of the battery module body; the positioning component is used for quickly positioning the battery monomers and the battery module body, and the positioning component comprises a positioning cavity formed in the top end of the battery module body and a connecting frame clamped in the positioning cavity; according to the battery module disclosed by the utility model, the positioning component is arranged, so that a positioning effect can be realized in the mounting process of the battery monomers, and the problem that a user needs to repeatedly mount and calibrate the battery monomers due to the fact that the position of the battery monomers deviates during mounting is avoided, so that the mounting efficiency of the battery monomers is improved, and rapid assembly of the battery module is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of power batteries, and in particular relates to a battery module with explosion-proof performance. Background Art

[0002] A battery is a cup, tank or other container or part of a composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It is a device that can convert chemical energy into electrical energy and has a positive electrode and a negative electrode. During the use of the battery, in order to increase the voltage of the battery, multiple battery cells are generally combined in a certain way to form a battery module, and the power supply voltage is increased by connecting them in series to ensure the power supply of the battery.

[0003] In a Chinese patent with publication number CN219067138U, a battery module is disclosed. By arranging an exhaust component on one side of the battery module body having an explosion-proof valve and arranging a cooling component for cooling the exhaust component, when thermal runaway occurs in the battery module, high-temperature exhaust discharged from the explosion-proof valve can be discharged through the exhaust component, and the exhaust component is thermally connected to the cooling component, and the cooling component can quickly cool down the high-temperature exhaust in the exhaust component, reducing the risk of thermal runaway diffusion of the battery module, thereby improving the overall safety performance; although the above-mentioned battery module solves the problem of heat generation, in actual use, the existing battery module lacks a positioning component during installation, resulting in the position of the battery cell being offset during installation, requiring the user to repeatedly install and calibrate the battery cell, reducing the installation efficiency of the battery cell and consuming time and effort.

[0004] Therefore, it is necessary to improve the prior art to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to provide a battery module with explosion-proof performance, which solves the problem that the position of the existing battery cells is easily offset during installation, and the user needs to repeatedly install and calibrate the battery cells.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a battery module with explosion-proof performance, comprising:

[0008] A battery module body, wherein a plurality of battery cells are installed in the battery module body, explosion-proof valves are installed on the plurality of battery cells, and a mounting cover for sealing the plurality of battery cells in the battery module body is hinged at the top end of the battery module body;

[0009] The positioning member is used to quickly position the battery cell and the battery module body. The positioning member includes a positioning cavity opened at the top of the battery module body and a connection frame clamped in the positioning cavity. A positioning plate that matches the battery cell is fixed on the connection frame.

[0010] Furthermore, the positioning component also includes a first limiting cavity opened at the top of the positioning plate, and the explosion-proof valve is located inside the first limiting cavity, a second limiting cavity is opened at the top of the first limiting cavity, and the first limiting cavity is opened at least one group on the positioning plate, corresponding to the positive and negative poles and the explosion-proof valve on the battery cell respectively, the first limiting cavity is used to position the explosion-proof valve and the positive and negative poles, and the size of the first limiting cavity is adapted to the size of the explosion-proof valve and the positive and negative poles, so that the explosion-proof valve and the positive and negative poles are respectively embedded in the first limiting cavity.

[0011] Furthermore, a boss is fixed on the top of the connection frame, a clamping groove corresponding to the boss is provided on the top of the battery module body, and the clamping groove and the boss are slidably connected.

[0012] Furthermore, a protective component is provided in the battery module body, and the protective component includes an adjustment groove opened on the inner wall of the battery module body and a movable plate slidably connected in the adjustment groove, and a supporting spring is commonly connected between the movable plate and the adjustment groove, and one side of the movable plate extends to the outside of the adjustment groove and is fixed with an insulating plate that matches the battery cell, and the insulating plate is in contact with the external side of the battery cell, and the insulating plate is made of insulating soft material, which is used to protect one side of the battery cell during installation.

[0013] Furthermore, a movable limiting block is fixed to the top of the movable plate, a limiting groove matching with the movable limiting block is provided inside the battery module body, and the limiting groove is communicated with the adjusting groove.

[0014] Furthermore, a spring groove is provided on one side of the movable plate relative to the insulating plate, and the support spring is located in the spring groove, which is used to limit the support spring and prevent the support spring from bending and deforming during movement, thereby increasing the sliding stability of the movable plate in the adjustment groove.

[0015] Furthermore, a flame-retardant pad is fixed to one side of the mounting cover adjacent to the battery module body, and the flame-retardant pad is located in the first limiting cavity. When the mounting cover and the battery module body are closed, the flame-retardant pad is partially located inside the first limiting cavity, and interferes with the explosion-proof valve inside the first limiting cavity, so as to protect the explosion-proof valve and ensure the normal and practical use of the explosion-proof valve.

[0016] The utility model has the following beneficial effects:

[0017] When the utility model is in use, the positioning component is set to realize the positioning function of the battery cell during the installation process, thereby avoiding the problem that the position of the battery cell is shifted during installation and the user needs to repeatedly calibrate the battery cell installation, thereby improving the installation efficiency of the battery cell and saving time and labor, thereby realizing the rapid assembly of the battery module and facilitating the use of the battery module.

[0018] When the utility model is in use, the provision of the protective component can protect the battery cell during installation, thereby effectively preventing the exterior of the battery cell from being damaged due to friction, ensuring the normal use of the battery cell, and further improving the safety of the battery cell.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the utility model when the installation cover is opened;

[0023] Figure 3 This is a schematic diagram of the structure of the utility model after the installation cover is disassembled;

[0024] Figure 4 It is a structural schematic diagram of the positioning component of the utility model;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the battery module body of the utility model;

[0026] Figure 6 For this utility model Figure 5 Enlarged view of point A in .

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] In the figure: 1. battery module body; 11. mounting cover; 13. flame retardant pad; 14. battery cell; 15. explosion-proof valve; 2. positioning member; 21. positioning cavity; 22. connecting frame; 23. positioning plate; 24. first limiting cavity; 25. second limiting cavity; 26. boss; 3. protective member; 31. adjustment groove; 32. movable plate; 33. support spring; 34. spring groove; 35. insulating plate; 36. movable limiting block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Embodiment 1

[0030] The utility model provides Figure 1 A battery module with explosion-proof performance is shown, comprising: a battery module body 1, a plurality of battery cells 14 are installed in the battery module body 1, explosion-proof valves 15 are installed on the plurality of battery cells 14, and a mounting cover 11 is hinged at the top end of the battery module body 1 for sealing the plurality of battery cells 14 in the battery module body 1.

[0031] As can be seen from the above, when in use, the user completes the assembly work by placing the battery cells 14 into the battery module body 1 one by one, and uses the explosion-proof valve 15 to play an explosion-proof role for multiple battery cells 14, thereby increasing the safety of the battery cells 14 when in use. After the assembly is completed, the mounting cover 11 and the battery module body 1 are fixed with screws to form a battery module formed by multiple battery cells 14 connected in series.

[0032] refer to Figure 1-Figure 5 As shown, the positioning member 2 is used to quickly position the battery cell 14 and the battery module body 1. The positioning member 2 includes a positioning cavity 21 opened at the top of the battery module body 1 and a connecting frame 22 clamped in the positioning cavity 21, and a positioning plate 23 matching the battery cell 14 is fixed on the connecting frame 22; the positioning member 2 also includes a first limiting cavity 24 opened at the top of the positioning plate 23, and the explosion-proof valve 15 is located inside the first limiting cavity 24, and a second limiting cavity 25 is opened on the top of the first limiting cavity 24.

[0033] A boss 26 is also fixed to the top of the connection frame 22 , and a snap-in groove corresponding to the boss 26 is formed at the top of the battery module body 1 , and the snap-in groove and the boss 26 are slidably connected.

[0034] Through the above technical solution:

[0035] When in use, when the battery cell 14 is being installed, the user first presses the boss 26 to place it in the snap-in groove, so that the connecting frame 22 is snapped into the positioning cavity 21, so that the surface of the connecting frame 22 is horizontal with the battery module body 1, and the positioning plate 23 is in conflict with the top of the battery cell 14 while the positioning plate 23 is aligned with the top of the battery cell 14, and the explosion-proof valve 15 and the positive and negative electrodes at the top of the battery cell 14 are both embedded in the first limit cavity 24, ensuring the stability between the battery cell 14 and the positioning plate 23, and there is a gap between every two positioning plates 23, the user inserts the external connecting plate into the gap to correct the gap between the battery cell 14 and the positioning plate 23, the user can arbitrarily correct the orientation of the battery cell 14 during installation according to the situation, so that the battery cell 14 can be positioned during installation, avoiding the position of the battery cell 14 from being offset during installation, improving the installation efficiency of the battery cell 14, saving time and effort, reducing the installation strength of the user, and at the same time the battery module has an explosion-proof effect.

[0036] Furthermore, a flame retardant pad 13 is fixed to one side of the mounting cover 11 adjacent to the battery module body 1, and the flame retardant pad 13 is located in the first limiting cavity 24. Based on this, and in conflict with the explosion-proof valve 15 inside the first limiting cavity 24, it is used to prevent the explosion-proof valve 15 and the positive and negative electrodes from being flame-retardant, ensuring the normal practical use of the battery cell 14. Embodiment 2

[0037] The difference between the second embodiment and the first embodiment is that the second embodiment further discloses: Figure 3 , Figure 5 and Figure 6 As shown, a protective component 3 is provided in the battery module body 1, and the protective component 3 includes an adjustment groove 31 opened on the inner wall of the battery module body 1 and a movable plate 32 slidably connected in the adjustment groove 31, and a support spring 33 is commonly connected between the movable plate 32 and the adjustment groove 31. One side of the movable plate 32 extends to the outside of the adjustment groove 31 and is fixed with an insulating plate 35 that cooperates with the battery cell 14.

[0038] Through the above technical solution:

[0039] When in use, the battery cell 14 is assembled in the battery module body 1. At this time, the outside of the battery cell 14 is in contact with the insulating plate 35, and the battery cell 14 and the insulating plate 35 are relatively squeezed in the battery module body 1, so that the insulating plate 35 moves toward the inner wall of the battery module body 1, and the insulating plate 35 increases the thrust on the movable plate 32 during the movement, and the movable plate 32 slides toward the inside of the adjustment groove 31. When the movable plate 32 moves, a thrust is generated between the supporting spring 33, and the supporting spring 33 contracts inwardly close to the side of the movable plate 32. The supporting spring 33 itself can convert the external force into elastic potential energy, and increase the elastic support on one side of the movable plate 32. At this time, the insulating plate 35 gives the battery cell 14 an inward force under the action of the elastic force, which can not only stably position the battery cell 14 in the battery module body 1, but also reduce the force applied by the movable plate 32 to the battery cell 14 to a certain extent, thereby enhancing the protection of the outside of the battery cell 14.

[0040] Furthermore, a movable limit block 36 is fixed to the top of the movable plate 32, and a limit groove matching with the movable limit block 36 is provided inside the battery module body 1, and the limit groove is connected with the adjustment groove 31. Based on this, the movable limit block 36 slides in the limit groove, and the movable limit block 36 moves and slides between the limit groove, which is used to limit the movable plate 32 in the adjustment groove 31, prevent the position of the movable plate 32 from shifting when it moves, and make the movable plate 32 fit tightly with the outside of the battery cell 14.

[0041] Furthermore, a spring slot 34 is provided on one side of the moving plate 32 relative to the insulating plate 35, and the supporting spring 33 is located in the spring slot 34. Based on this, the supporting spring 33 is limited to prevent the supporting spring 33 from bending and deforming during the movement, thereby increasing the stability of the moving plate 32 sliding in the adjusting slot 31.

[0042] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A battery module with explosion-proof performance, characterized in that: include: A battery module body (1), wherein a plurality of battery cells (14) are installed in the battery module body (1), explosion-proof valves (15) are installed on the plurality of battery cells (14), and a mounting cover (11) is hingedly connected to the top end of the battery module body (1) for sealing the plurality of battery cells (14) in the battery module body (1); A positioning member (2) is used to quickly position a battery cell (14) with respect to a battery module body (1); the positioning member (2) comprises a positioning cavity (21) provided at the top of the battery module body (1) and a connection frame (22) clamped in the positioning cavity (21); a positioning plate (23) matching the battery cell (14) is fixed to the connection frame (22).

2. The battery module with explosion-proof performance according to claim 1, characterized in that: The positioning member (2) further comprises a first limiting cavity (24) formed at the top of the positioning plate (23), and the explosion-proof valve (15) is located inside the first limiting cavity (24). A second limiting cavity (25) is formed at the top of the first limiting cavity (24).

3. The battery module with explosion-proof performance according to claim 1, characterized in that: A boss (26) is also fixed to the top of the connection frame (22), and a clamping groove corresponding to the boss (26) is provided at the top of the battery module body (1), and the clamping groove and the boss (26) are slidably connected.

4. The battery module with explosion-proof performance according to claim 1, characterized in that: A protective component (3) is provided in the battery module body (1), and the protective component (3) comprises an adjustment groove (31) provided in the inner wall of the battery module body (1) and a movable plate (32) slidably connected in the adjustment groove (31), a supporting spring (33) being connected between the movable plate (32) and the adjustment groove (31), and one side of the movable plate (32) extends to the outside of the adjustment groove (31) and is fixed with an insulating plate (35) matching with the battery cell (14).

5. The battery module with explosion-proof performance according to claim 4, characterized in that: A movable limit block (36) is also fixed to the top of the movable plate (32), and a limit groove matching the movable limit block (36) is provided inside the battery module body (1), and the limit groove is communicated with the adjustment groove (31).

6. The battery module with explosion-proof performance according to claim 4, characterized in that: A spring groove (34) is also provided on one side of the movable plate (32) opposite to the insulating plate (35), and the supporting spring (33) is located in the spring groove (34).

7. The explosion-proof battery module according to claim 2, characterized in that: A flame retardant pad (13) is also fixed to a side of the installation cover (11) adjacent to the battery module body (1), and the flame retardant pad (13) is located in the first limiting cavity (24).

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