Battery protection device

Abstract

The utility model relates to the technical field of batteries, and particularly discloses a battery protection device which comprises a shell, a cover plate is arranged on the upper end face of the shell, a plurality of fixing modules are arranged in the shell, a plurality of battery bodies are arranged in the fixing modules, and the battery bodies are arranged in the fixing modules. A plurality of fixing blocks are fixedly connected to the upper sides and the lower sides of the outer walls of the fixing modules, through holes are formed in the outer walls of the fixing blocks in a penetrating mode, fixing bolts are arranged in every two adjacent fixing blocks through the through holes, and the fixing modules are connected with bolts and nuts in a matched mode, so that the battery pack is more convenient to assemble and replace; the battery pack can be quickly disassembled and maintained without complex tools, the maintenance efficiency is remarkably improved, the shell and the cover plate form a closed protection space, the design of the reinforcing rings and the reinforcing ribs is combined, the overall structural strength is effectively enhanced, the battery is prevented from being damaged due to collision in the transportation or use process, and meanwhile the design of the heat dissipation holes is beneficial to improving the heat management performance of the battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and specifically discloses a battery protection device. Background Technology

[0002] A battery is a cup, tank, or other container or composite container containing an electrolyte solution and metal electrodes to generate an electric current. It is a device that converts chemical energy into electrical energy and has positive and negative electrodes. With the advancement of technology, the term "battery" now generally refers to any small device that can generate electrical energy.

[0003] Existing large batteries use multiple small 18650 batteries connected in parallel or series, which makes it inconvenient to disassemble and replace damaged 18650 batteries, and the batteries are easily damaged by impacts. Therefore, a battery protection device is needed to solve this problem. Utility Model Content

[0004] This utility model proposes a battery protection device that significantly improves the ease of disassembly and assembly and the overall protection performance of the battery pack through a modular quick-release structure and a dual protection design.

[0005] This utility model is implemented as follows: a battery protection device includes a housing, a cover plate on the upper end face of the housing, multiple fixing modules inside the housing, multiple battery bodies inside each fixing module, multiple fixing blocks fixedly connected to the upper and lower sides of the outer walls of the multiple fixing modules, through holes in the outer walls of the multiple fixing blocks, fixing bolts through the through holes in the interior of adjacent fixing blocks, first nuts threaded to the threaded ends of the multiple fixing bolts, second nuts fixedly connected to the upper end face of the multiple fixing blocks located at the bottom, multiple first countersunk bolts threaded to the second nuts on the lower end face of the housing, third nuts fixedly connected to the lower end face of the multiple fixing blocks located at the top, and multiple second countersunk bolts threaded to the third nuts on the upper end face of the cover plate.

[0006] As a preferred embodiment of the battery protection device of this utility model, the outer wall of the housing is fixedly connected with a plurality of reinforcing rings and a plurality of reinforcing ribs arranged perpendicularly to the reinforcing rings.

[0007] As a preferred embodiment of the battery protection device of this utility model, the outer wall of the housing is provided with a plurality of circumferentially distributed heat dissipation holes.

[0008] As a preferred embodiment of the battery protection device of this utility model, the inner wall of the housing is provided with a plurality of slots corresponding to the fixing blocks.

[0009] As a preferred embodiment of the battery protection device of this utility model, the fixing module is hexagonal.

[0010] As a preferred embodiment of the battery protection device of this utility model, a handle is fixedly connected to the upper end face of the cover plate.

[0011] The beneficial effects of this utility model are:

[0012] 1. The assembly and replacement of the battery pack are made more convenient by using the fixed module and the bolts and nuts. The battery pack can be quickly disassembled and repaired without complicated tools, which significantly improves maintenance efficiency.

[0013] 2. The casing and cover plate form a closed protective space. Combined with the design of reinforcing rings and reinforcing ribs, the overall structural strength is effectively enhanced, preventing the battery from being damaged by collisions during transportation or use. At the same time, the heat dissipation hole design helps to improve the thermal management performance of the battery pack. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is an overall structural diagram of a battery protection device according to the present invention.

[0016] Figure 2 This is an internal structural diagram of a battery protection device according to the present invention.

[0017] Figure 3 This is a structural diagram of the shell of this utility model.

[0018] Figure 4 This is a structural diagram of the fixed module of this utility model.

[0019] The markings in the diagram are: 1. Shell; 2. Cover plate; 3. Fixing module; 4. Battery body; 5. Fixing block; 6. Through hole; 7. Fixing bolt; 8. First nut; 9. First countersunk bolt; 10. Second nut; 11. Second countersunk bolt; 12. Third nut; 13. Reinforcing ring; 14. Reinforcing rib; 15. Heat dissipation hole; 16. Slot. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0021] Please see Figure 1-4A battery protection device includes a housing 1, a cover plate 2 on the upper surface of the housing 1, multiple fixing modules 3 inside the housing 1, multiple battery bodies 4 inside each fixing module 3, multiple fixing blocks 5 fixedly connected to the upper and lower sides of the outer walls of the multiple fixing modules 3, through holes 6 through the outer walls of each fixing block 5, fixing bolts 7 through the through holes 6 inside each adjacent fixing block 5, first nuts 8 threadedly connected to the threaded ends of the multiple fixing bolts 7, second nuts 10 fixedly connected to the upper surface of the multiple fixing blocks 5 located at the bottom, multiple first countersunk bolts 9 threadedly connected to the second nuts 10 on the lower surface of the housing 1, third nuts 12 fixedly connected to the lower surface of the multiple fixing blocks 5 located at the top, and multiple second countersunk bolts 11 threadedly connected to the third nuts 12 on the upper surface of the cover plate 2.

[0022] In this embodiment: During installation, multiple fixing modules 3 are first stacked together, then multiple fixing bolts 7 are inserted into the through holes 6 of two adjacent fixing blocks 5 respectively, and then the first nut 8 is screwed onto the threaded end of the fixing bolt 7 to fix the two adjacent fixing modules 3. Next, multiple fixing modules 3 are placed into the housing 1, and multiple first countersunk bolts 9 are screwed into multiple second nuts 10 from the lower side of the housing 1 to fix the fixing modules 3 to the housing 1. Then, the cover plate 2 is placed on top of the housing 1, and multiple second countersunk bolts 11 are screwed into multiple third nuts 12 from the upper side of the cover plate 2 to fix the cover plate 2 to the fixing modules 3. This utility model uses bolts and nuts to fix the fixing modules 3 and the housing 1, which facilitates replacement when the battery is damaged. The housing 1 and the cover plate 2 protect the internal battery body 4 from being damaged by bumps.

[0023] As a technical optimization of this utility model, the outer wall of the shell 1 is fixedly connected with a plurality of reinforcing rings 13 and a plurality of reinforcing ribs 14 arranged perpendicularly to the reinforcing rings 13.

[0024] In this embodiment, by fixing multiple reinforcing rings 13 and multiple reinforcing ribs 14 perpendicular to the reinforcing rings 13 to the outer wall of the housing 1, the strength of the housing 1 is enhanced.

[0025] As a technical optimization of this utility model, the outer wall of the shell 1 is provided with a plurality of circumferentially distributed heat dissipation holes 15.

[0026] In this embodiment, multiple circumferentially distributed heat dissipation holes 15 are opened through the outer wall of the housing 1 to facilitate heat dissipation of the battery.

[0027] As a technical optimization of this utility model, the inner wall of the shell 1 is provided with a plurality of slots 16 corresponding to the fixing block 5.

[0028] In this embodiment: by opening multiple slots 16 on the inner wall of the housing 1 corresponding to the fixing block 5, it is easy for the fixing block 5 to smoothly enter the housing 1.

[0029] As a technical optimization of this utility model, the fixed module 3 is hexagonal.

[0030] In this embodiment, the fixed module 3 is set as a hexagon to facilitate its positioning.

[0031] As a technical optimization of this utility model, a handle is fixedly connected to the upper end face of the cover plate 2.

[0032] In this embodiment, a handle is fixedly connected to the upper end face of the cover plate 2 for easy carrying.

[0033] The working principle and usage process of this utility model are as follows: During installation, multiple fixing modules 3 are first stacked together, and then multiple fixing bolts 7 are inserted into the through holes 6 of two adjacent fixing blocks 5 respectively. Then, the first nut 8 is screwed onto the threaded end of the fixing bolt 7 to fix the two adjacent fixing modules 3. Next, multiple fixing modules 3 are placed into the housing 1, and multiple first countersunk bolts 9 are screwed into multiple second nuts 10 from the bottom side of the housing 1 to fix the fixing modules 3 to the housing 1. Then, the cover plate 2 is placed on top of the housing 1, and multiple second countersunk bolts 11 are screwed into multiple third nuts 12 from the top side of the cover plate 2 to fix the cover plate 2 to the fixing modules 3. This utility model fixes the fixing modules 3 and the housing 1 with bolts and nuts, which facilitates replacement when the battery is damaged. The housing 1 and the cover plate 2 protect the internal battery body 4 from being damaged by bumps.

[0034] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A battery protection device, comprising a housing (1), characterized in that: The upper end face of the housing (1) is provided with a cover plate (2). Multiple fixing modules (3) are provided inside the housing (1). Multiple battery bodies (4) are provided inside each fixing module (3). Multiple fixing blocks (5) are fixedly connected to the upper and lower sides of the outer walls of each fixing module (3). Through holes (6) are provided through the outer walls of each fixing block (5). Fixing bolts (7) are provided inside each pair of adjacent fixing blocks (5) through the through holes (6). The threaded ends of the bolts (7) are all threaded with first nuts (8), the upper surfaces of the multiple fixing blocks (5) located at the bottom are all fixed with second nuts (10), the lower surface of the housing (1) is provided with multiple first countersunk bolts (9) threaded with the second nuts (10), the lower surfaces of the multiple fixing blocks (5) located at the top are all fixed with third nuts (12), and the upper surface of the cover plate (2) is provided with multiple second countersunk bolts (11) threaded with the third nuts (12).

2. The battery protection device according to claim 1, characterized in that: The outer wall of the shell (1) is fixedly connected with a plurality of reinforcing rings (13) and a plurality of reinforcing ribs (14) arranged perpendicular to the reinforcing rings (13).

3. The battery protection device according to claim 1, characterized in that: The outer wall of the housing (1) is provided with a plurality of circumferentially distributed heat dissipation holes (15).

4. The battery protection device according to claim 1, characterized in that: The inner wall of the housing (1) is provided with a plurality of slots (16) corresponding to the fixing block (5).

5. A battery protection device according to claim 1, characterized in that: The fixed module (3) is hexagonal.

6. A battery protection device according to claim 1, characterized in that: A handle is fixedly connected to the upper end face of the cover plate (2).

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