Energy storage battery module

By adopting a uniformly distributed heat dissipation fan and an isolated hollow rod structure in the energy storage battery module, the problem of uneven heat dissipation is solved, uniform and efficient heat dissipation of the battery cell is achieved, and the service life of the battery cell is extended.

CN222126825UActive Publication Date: 2024-12-06SHANGHAI CHIKU NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202420649840.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-01
Publication Date
2024-12-06
Estimated Expiration
2034-04-01

AI Technical Summary

Technical Problem

Due to uneven heat dissipation of existing energy storage battery modules, some battery cells have poor operating conditions, affecting the overall power and life.

Method used

An energy storage battery module is designed, using a uniformly distributed heat dissipation fan built into the protective case and a longitudinal and transverse isolation hollow rod structure to achieve all-round circulating air and uniform heat dissipation between the battery cells.

Benefits of technology

Through all-round circulation and uniform heat dissipation, the degree of uniform air temperature is improved, the loss of the battery cell is reduced, and the service life of the battery cell is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an energy storage battery module, and relates to the technical field of energy storage batteries. Overhead legs are fixedly installed at the four corners of the bottom face of the protective shell, a top cover is sleeved on the top face of the protective shell, cooling fans are fixedly installed on the top wall of the top cover and the bottom wall of the protective shell, ventilation openings are formed in the side wall of the protective shell, and two symmetrically-arranged installation frames are fixedly installed on the bottom face of the inner wall of the protective shell; a bearing net and longitudinal isolation hollow rods are fixedly mounted on the surface of the mounting frame, transverse isolation hollow rods are mounted on the top surfaces of the longitudinal isolation hollow rods in a clamping manner, and battery cells are placed between the adjacent transverse isolation hollow rods. According to the utility model, through the hollow arrangement of the longitudinal isolation hollow rods and the transverse isolation hollow rods, a plurality of battery cells are isolated for heat dissipation, and longitudinal spaces around the battery cells are conducted, so that the homogenization degree of air temperature is improved, the loss of the battery cells is reduced, and the service life of the battery cells is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of energy storage batteries, in particular to an energy storage battery module. Background Art

[0002] The energy storage battery module is a battery assembly composed of multiple battery cells, which is used to store electrical energy. It is one of the key components for power applications such as electric vehicles, electric bicycles, and home energy storage systems. Its main structure includes battery cells, battery management system, cooling system, etc.

[0003] In the prior art, a Chinese patent with authorization announcement number CN220306349U discloses an energy storage battery module, which isolates the battery cells by setting a partition structure inside the shell to facilitate air circulation, so as to solve the technical problem that the energy storage battery module in the prior art has uneven heat dissipation, resulting in poor working conditions of individual battery cells, which will further lead to a decrease in the overall power of the battery module and affect its life.

[0004] The above-mentioned prior art solutions have the following defects: the existence of the longitudinal partitions and the transverse partitions isolates the space between adjacent battery cells into multiple independent spaces in the longitudinal direction, resulting in inconsistent air flow speeds in different spaces under the action of the cooling fan, and thus being unable to ensure the uniformity of heat dissipation of the battery cells in the longitudinal direction, which further affects the service life of the battery cells.

[0005] For this purpose, an energy storage battery module is proposed. Utility Model Content

[0006] The purpose of the utility model is to solve the problems mentioned in the above background technology, and the utility model provides an energy storage battery module.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A storage battery module comprises a protective shell, wherein overhead legs are fixedly installed at the four corners of the bottom surface of the protective shell, a top cover is mounted on the top surface of the protective shell, a heat dissipation fan is fixedly installed on the top wall of the top cover and the bottom wall of the protective shell, a vent is opened on the side wall of the protective shell, a mounting frame is fixedly installed on the bottom surface of the inner wall of the protective shell, the number of the mounting frames is two and they are symmetrically arranged, a supporting net and a longitudinal isolating hollow rod are fixedly installed on the surface of the mounting frame, a transverse isolating hollow rod is clamped and installed on the top surface of the longitudinal isolating hollow rod, and a battery cell is placed between adjacent transverse isolating hollow rods.

[0009] Furthermore, the number of the heat dissipation fans is several and they are evenly distributed in a rectangular array, a slot is provided on the top surface of the longitudinal isolation hollow rod, and the transverse isolation hollow rod is slidably inserted into the slot surface.

[0010] Furthermore, insertion holes are provided at the four corners of the top surface of the top cover, and the cross-sectional specifications of the overhead legs are the same as those of the insertion holes.

[0011] Furthermore, the number of the vents is several and they are evenly distributed in a rectangular array. A dustproof sheet is fixedly mounted on the outer side of the protective shell, and the dustproof sheet covers the surface of the vents.

[0012] Furthermore, fixing bolts are threadedly installed on the surface of the top cover and the protective shell.

[0013] Furthermore, the mounting frame includes a longitudinal rod and a transverse rod, the transverse rod is fixedly installed between opposite surfaces of two longitudinal rods, and the supporting net is arranged higher than the bottom surface of the inner wall of the protective shell.

[0014] The beneficial effects of the utility model are as follows:

[0015] The air inside the protective shell is extracted through the cooling fans arranged above and below, driving the external air to enter the protective shell through the vents and finally be discharged through the cooling fans, thereby realizing all-round circulation of air. Through the hollow setting of the longitudinal isolation hollow rods and the transverse isolation hollow rods, multiple battery cells are isolated for heat dissipation, while the longitudinal space around the battery cells is made conductive, thereby improving the uniformity of air temperature, reducing the loss of the battery cells, and increasing the service life of the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a front cross-sectional view of the three-dimensional structure of the protective shell of the utility model;

[0018] Figure 3 It is an exploded schematic diagram of the local structure of the utility model;

[0019] Figure numerals: 1. protective shell; 2. overhead legs; 3. top cover; 4. cooling fan; 5. socket; 6. vent; 7. dustproof sheet; 8. fixing bolt; 9. mounting frame; 901. longitudinal rod; 902. transverse rod; 10. supporting net; 11. longitudinal isolation hollow rod; 12. slot; 13. transverse isolation hollow rod; 14. battery cell. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] like Figures 1 to 3 As shown, an energy storage battery module includes a protective shell 1, overhead legs 2 are fixedly installed at the four corners of the bottom surface of the protective shell 1, a top cover 3 is mounted on the top surface of the protective shell 1, a cooling fan 4 is fixedly installed on the top wall of the top cover 3 and the bottom wall of the protective shell 1, a vent 6 is opened on the side wall of the protective shell 1, and a mounting frame 9 is fixedly installed on the bottom surface of the inner wall of the protective shell 1. The number of the mounting frames 9 is two and they are symmetrically arranged, and a supporting net 10 and a longitudinal isolation hollow rod 11 are fixedly installed on the surface of the mounting frame 9. The top surface of the longitudinal isolation hollow rod 11 is clamped with a transverse isolation hollow rod 13, and a battery cell 14 is placed between adjacent transverse isolation hollow rods 13.

[0026] More specifically, the air inside the protective shell 1 is extracted through the heat dissipation fans 4 arranged above and below, driving the external air to enter the protective shell 1 through the vents 6 and finally be discharged through the heat dissipation fans 4, thereby realizing the all-round circulation of air. Through the hollow setting of the longitudinal isolation hollow rods 11 and the transverse isolation hollow rods 13, while a plurality of battery cells 14 are isolated for heat dissipation, the longitudinal space around the battery cells 14 is made conductive, thereby improving the uniformity of the air temperature, reducing the loss of the battery cells 14, and increasing the service life of the battery cells 14.

[0027] There are several heat dissipation fans 4 distributed in a uniform rectangular array. A slot 12 is provided on the top surface of the longitudinal isolation hollow rod 11 , and the transverse isolation hollow rod 13 is slidably inserted into the surface of the slot 12 .

[0028] Specifically, through the operation of several evenly distributed cooling fans 4, the air inside the protective shell 1 flows quickly and evenly, thereby realizing rapid air cooling of several battery cells 14, thereby achieving the purpose of uniform and efficient heat dissipation. By sliding the transverse isolation hollow rods 13 on the surfaces of different slots 12, the spacing between adjacent transverse isolation hollow rods 13 can be adjusted, thereby being able to separate battery cells 14 of different specifications, which is more flexible.

[0029] Insertion holes 5 are provided at the four corners of the top surface of the top cover 3 , and the cross-sectional specifications of the overhead legs 2 are the same as those of the insertion holes 5 .

[0030] Specifically, when multiple modules are stacked, reliable stacking can be achieved by inserting the overhead legs 2 on the bottom of the upper protective shell 1 into the sockets 5 on the top of the lower top cover 3, effectively preventing the upper and lower layers of battery modules from shifting, and having the advantages of easy transportation and stable operation.

[0031] There are a plurality of vents 6 which are evenly distributed in a rectangular array. A dustproof sheet 7 is fixedly mounted on the outer side of the protective shell 1 , and the dustproof sheet 7 covers the surface of the vents 6 .

[0032] Specifically, under the action of the cooling fan 4, air enters the protective shell 1 from the vent 6, and is filtered and isolated by the dustproof sheet 7, so that the dust content of the air entering the protective shell 1 is low, and a large amount of dust enters the surface protective shell 1, thereby preventing a large amount of dust from contacting electrical components and causing damage to the electrical components, which can effectively improve the service life of the battery module.

[0033] Fixing bolts 8 are threadedly mounted on the surface of the top cover 3 and the protective shell 1 .

[0034] Specifically, the top cover 3 is fixed to the surface of the protective shell 1 by threading the fixing bolts 8 on the top cover 3 and the surface of the protective shell 1 .

[0035] The mounting frame 9 includes a longitudinal rod 901 and a transverse rod 902 . The transverse rod 902 is fixedly installed between the opposite surfaces of the two longitudinal rods 901 . The supporting net 10 is arranged higher than the bottom surface of the inner wall of the protective shell 1 .

[0036] Specifically, the stability of the longitudinal rod 901 is enhanced by the cross rod 902, so that the longitudinal isolation hollow rod 11 and the transverse isolation hollow rod 13 installed on the surface of the longitudinal rod 901 are more stable and reliable, and the suspended supporting net 10 is used to support the battery cell 14, so that the battery cell 14 and the bottom surface of the inner wall of the protective shell 1 flow out of the air circulation area, which is more conducive to air circulation and improves the heat dissipation effect.

[0037] In summary: the air inside the protective shell 1 is extracted through the heat dissipation fans 4 arranged above and below, driving the external air to enter the protective shell 1 through the vents 6 and finally be discharged through the heat dissipation fans 4, thereby realizing the all-round circulation of air. Through the hollow setting of the longitudinal isolation hollow rods 11 and the transverse isolation hollow rods 13, while a plurality of battery cells 14 are isolated for heat dissipation, the longitudinal space around the battery cells 14 is made conductive, thereby improving the uniformity of the air temperature, reducing the loss of the battery cells 14, and increasing the service life of the battery cells 14.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An energy storage battery module, characterized in that: The invention comprises a protective shell (1), wherein overhead legs (2) are fixedly mounted at the four corners of the bottom surface of the protective shell (1), a top cover (3) is mounted on the top surface of the protective shell (1), a heat dissipation fan (4) is fixedly mounted on the top wall of the top cover (3) and the bottom wall of the protective shell (1), a vent (6) is provided on the side wall of the protective shell (1), a mounting frame (9) is fixedly mounted on the bottom surface of the inner wall of the protective shell (1), the number of the mounting frames (9) is two and they are symmetrically arranged, a supporting net (10) and a longitudinal isolating hollow rod (11) are fixedly mounted on the surface of the mounting frame (9), a transverse isolating hollow rod (13) is clamped and mounted on the top surface of the longitudinal isolating hollow rod (11), and a battery cell (14) is placed between adjacent transverse isolating hollow rods (13).

2. The energy storage battery module according to claim 1, characterized in that: The number of the heat dissipation fans (4) is several and they are evenly distributed in a rectangular array. A slot (12) is provided on the top surface of the longitudinal isolation hollow rod (11), and the transverse isolation hollow rod (13) is slidably inserted into the surface of the slot (12).

3. The energy storage battery module according to claim 1, characterized in that: Insertion holes (5) are provided at the four corners of the top surface of the top cover (3), and the cross-sectional specifications of the overhead legs (2) are the same as those of the insertion holes (5).

4. The energy storage battery module according to claim 1, characterized in that: The number of the ventilation openings (6) is several and they are evenly distributed in a rectangular array. A dustproof sheet (7) is fixedly mounted on the outer side of the protective shell (1), and the dustproof sheet (7) covers the surface of the ventilation opening (6).

5. The energy storage battery module according to claim 1, characterized in that: Fixing bolts (8) are threadedly mounted on the surfaces of the top cover (3) and the protective shell (1).

6. The energy storage battery module according to claim 1, characterized in that: The mounting frame (9) comprises a longitudinal rod (901) and a transverse rod (902), wherein the transverse rod (902) is fixedly mounted between opposite surfaces of the two longitudinal rods (901), and the supporting net (10) is arranged higher than the bottom surface of the inner wall of the protective shell (1).