Anti-expansion device for air-cooled battery

Abstract

The utility model discloses an air-cooled battery anti-expansion device, which comprises a battery accommodating part used for accommodating an air-cooled battery, the top wall of the battery accommodating part is abutted against the air-cooled battery, and the air-cooled battery is arranged in the battery accommodating part. The top wall of the battery accommodating part can buffer deformation when the air-cooled battery expands along the height direction of the air-cooled battery; at least two reinforcing ribs are arranged on the side face of the battery containing part, each reinforcing rib abuts against the air-cooled battery, and the area of the reinforcing rib abutting against the middle of the air-cooled battery is larger than that of the reinforcing rib abutting against the edge of the air-cooled battery. And the reinforcing ribs can buffer deformation when the air-cooled battery expands along the thickness direction of the air-cooled battery. The anti-expansion device for the air-cooled battery disclosed by the utility model can be used for solving the problem in the prior art that liquid leakage risk exists during expansion of the battery cell due to a bundling and pressing mode of the battery cell.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries and relates to an anti-expansion device for air-cooled batteries. Background Art

[0002] Existing air-cooled battery packs are of two types: sheet metal and plastic. Both types of air-cooled battery packs have the phenomenon that the battery cells expand with time and temperature changes.

[0003] In order to reduce the expansion of battery cells, a commonly used solution in the prior art is to bundle and compress the battery cells with stainless steel belts. However, as the usage time and ambient temperature change, the battery cells will squeeze the stainless steel belts. When the battery cells expand to a certain thickness, there is a risk of battery leakage. Utility Model Content

[0004] The utility model provides an anti-expansion device for an air-cooled battery, which is used to solve the problem in the prior art that the bundling and pressing method of the battery core may cause the battery core to have a risk of leakage when expanding.

[0005] In order to solve the above technical problems, the utility model provides an air-cooled battery anti-expansion device, the air-cooled battery anti-expansion device comprising a battery accommodating portion, the battery accommodating portion is used to accommodate an air-cooled battery, the top wall of the battery accommodating portion abuts against the air-cooled battery, and the top wall of the battery accommodating portion can buffer deformation when the air-cooled battery expands along the height direction of the air-cooled battery;

[0006] At least two reinforcing ribs are provided on the side of the battery accommodating portion, each of the reinforcing ribs abuts against the air-cooled battery, the area of ​​the reinforcing rib abutting against the middle of the air-cooled battery is larger than the area of ​​the reinforcing rib abutting against the edge of the air-cooled battery, and the reinforcing ribs can buffer deformation when the air-cooled battery expands along the thickness direction of the air-cooled battery.

[0007] Optionally, a thickness of a top wall of the battery receiving portion is smaller than a thickness of a base of the battery receiving portion.

[0008] Optionally, the reinforcing ribs are flexible reinforcing ribs.

[0009] Optionally, the reinforcing ribs include longitudinal reinforcing ribs and transverse reinforcing ribs, and each of the longitudinal reinforcing ribs is connected to all of the transverse reinforcing ribs.

[0010] Optionally, a gap is provided between any two adjacent transverse reinforcing ribs.

[0011] Optionally, the air-cooled battery anti-expansion device further includes a reinforcing plate, which is respectively arranged on a first side wall and a second side wall of the battery accommodating portion, and the first side wall and the second side wall are both located in the width direction of the air-cooled battery.

[0012] Optionally, each of the reinforcing plates gradually bulges from the end portion to the middle portion.

[0013] Optionally, both the first side wall and the second side wall are provided with holes.

[0014] Optionally, the air-cooled battery anti-expansion device also includes: a first limiter and a second limiter, the first limiter is respectively arranged on both sides close to the first side wall and the longitudinal reinforcement rib, and the second limiter is respectively arranged on both sides close to the second side wall and the longitudinal reinforcement rib.

[0015] Optionally, the battery receiving portion is an injection molded part.

[0016] Compared with the prior art, the air-cooled battery anti-expansion device provided by the utility model has the following beneficial effects:

[0017] Since air-cooled batteries may expand during use, the present invention can suppress the expansion of air-cooled batteries by abutting against the air-cooled batteries through the reinforcing ribs, thereby preventing the air-cooled batteries from bursting the outer wall when the expansion is too large, causing leakage of the air-cooled batteries. In addition, the present invention can prevent the reinforcing ribs from exerting excessive pressure on the air-cooled batteries to a certain extent by allowing the reinforcing ribs to deform with the buffering of the air-cooled batteries when the air-cooled batteries expand, causing the outer wall of the air-cooled batteries to be squeezed by the reinforcing ribs, thereby causing leakage of the air-cooled batteries. In addition, since the middle part of the air-cooled batteries usually expands more when expanding, the area of ​​the reinforcing ribs abutting against the middle part of the air-cooled batteries is designed to be wider, which can further effectively prevent leakage of the air-cooled batteries. In summary, the solution of the present invention can solve the problem in the prior art that the bundling and pressing method of the battery cells will cause the battery cells to leak when expanding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only part of the embodiments of the utility model, rather than all of the embodiments. For ordinary technicians in this field, without paying creative work, other drawings obtained based on these drawings all fall within the scope of protection of the utility model.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of an air-cooled battery anti-expansion device provided by an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of an air-cooled battery anti-expansion device containing an air-cooled battery in a certain direction provided by an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure in a certain direction of another air-cooled battery anti-expansion device containing an air-cooled battery provided by an embodiment of the utility model.

[0022] 100 -battery accommodating portion, 110 -top wall, 120 -reinforcement ribs, 121 -transverse reinforcement ribs, 122 -longitudinal reinforcement ribs, 130 -base, 140 -first position limiting member, 150 -second position limiting member, 160 -hole, 200 -air-cooled battery, 300 -reinforcement plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In order to make the description of the disclosed content more detailed and complete, the following is an illustrative description of the implementation method and specific examples of the utility model; however, this is not the only form of implementing or using the specific examples of the utility model. The implementation method covers the features of multiple specific examples. Based on the examples in the utility model, all other examples obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0026] In the description of the embodiments of the present invention, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present invention, “multiple” means two or more than two, and other quantifiers are similar. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention, and the embodiments of the present invention and the features in the embodiments may be combined with each other without conflict.

[0027] like Figure 1FIG. 1 is a three-dimensional diagram of an air-cooled battery anti-expansion device provided by the utility model in a certain direction. The air-cooled battery anti-expansion device includes a battery receiving portion 100, such as Figure 2 The figure shows a three-dimensional view of an air-cooled battery anti-expansion device provided by the utility model and containing an air-cooled battery 200 in a certain direction, wherein the battery accommodating portion 100 is used to accommodate the air-cooled battery 200, and the top wall 110 of the battery accommodating portion 100 abuts against the air-cooled battery 200, and the top wall 110 of the battery accommodating portion 100 can buffer deformation when the air-cooled battery 200 expands along the height direction of the air-cooled battery 200;

[0028] At least two reinforcing ribs 120 are provided on the side of the battery accommodating portion 100, each of the reinforcing ribs 120 abuts against the air-cooled battery 200, and the area of ​​the reinforcing rib 120 abutting against the middle of the air-cooled battery 200 is larger than the area of ​​the reinforcing rib 120 abutting against the edge of the air-cooled battery 200. The reinforcing rib 120 can buffer deformation when the air-cooled battery 200 expands along the thickness direction of the air-cooled battery 200.

[0029] It should be noted that the battery accommodating portion 100 can be any structure that can provide an object accommodating function, which can be closed or open; the shape of the battery accommodating portion 100 can be any shape, for example, the shape of the battery accommodating portion 100 can be cylindrical or cubic. Optionally, in order to enable the battery accommodating portion 200 to better accommodate the air-cooled battery 200, the shape of the battery accommodating portion 100 can be adapted to the air-cooled battery 200, for example, if the air-cooled battery 200 is a rectangular parallelepiped, the battery accommodating portion 100 can be a rectangular parallelepiped, and if the air-cooled battery 200 is a cylindrical battery accommodating portion 200 can be a cylindrical shape.

[0030] It is understandable that in order to enable the top wall 110 of the battery accommodating portion 100 to buffer deformation when the air-cooled battery 200 expands along the height direction of the air-cooled battery 200, the material of the top wall 110 may be a material that can be squeezed and deformed as the air-cooled battery 200 expands, for example, the material of the top wall 110 may be a flexible material;

[0031] It can be further understood that since the top wall 110 of the battery accommodating portion 100 can buffer deformation when the air-cooled battery 200 expands along the height direction of the air-cooled battery 200, the portion of the air-cooled battery 200 that abuts against the top wall 110 is a certain end of the air-cooled battery 200 in the height direction.

[0032] It should be noted that the reinforcing ribs 120 abutting against the middle of the air-cooled battery 200 may be a preset number of reinforcing ribs 120 away from the edge of the air-cooled battery 200. The preset number may be specifically designed according to specific needs of the application and is not specifically set here.

[0033] It is understandable that in order to allow the reinforcing rib 120 to buffer deformation when the air-cooled battery 200 expands along the thickness direction of the air-cooled battery 200, the material of the reinforcing rib 120 can be any material that can be squeezed and deformed as the air-cooled battery 200 expands, and is not specifically limited here;

[0034] It can be further understood that, since the reinforcing rib 120 can buffer deformation when the air-cooled battery 200 expands along the thickness direction of the air-cooled battery 200 , the portion of the air-cooled battery 200 that abuts the reinforcing rib 120 is a certain side of the air-cooled battery 200 in the thickness direction.

[0035] It can be understood that since the air-cooled battery 200 may expand during use, the reinforcement rib 120 abuts against the air-cooled battery 200, so that the expansion of the air-cooled battery 200 can be suppressed by the reinforcement rib 120, thereby avoiding the problem of the air-cooled battery 200 leaking due to the outer wall of the air-cooled battery 200 bursting when the air-cooled battery 200 expands too much; in addition, this embodiment can avoid the problem of excessive pressure of the reinforcement rib 120 on the air-cooled battery 200 to a certain extent by enabling the reinforcement rib 120 to buffer and deform along with the air-cooled battery 200 when the air-cooled battery 200 expands; in addition, since the middle part of the air-cooled battery 200 usually expands to a greater extent during expansion, the area of ​​the reinforcement rib 120 abutting against the middle part of the air-cooled battery 200 is designed to be wider, so that the air-cooled battery 200 can be effectively prevented from leaking.

[0036] In an optional implementation, Figure 3 FIG. 1 is a three-dimensional diagram of an air-cooled battery anti-expansion device provided by the utility model and containing an air-cooled battery in another direction, as shown in FIG. Figures 1 to 3 As shown, the thickness of the top wall 110 of the battery receiving portion 100 is less than the thickness of the base 130 of the battery receiving portion 100 .

[0037] It can be understood that the top wall 110 and the base 130 of the battery accommodating portion 100 are both located in the height direction of the air-cooled battery 200 .

[0038] Optionally, since the air-cooled battery 200 generates heat when working, in order to dissipate the heat of the air-cooled battery 200 so that the air-cooled battery 200 can work normally, the top wall 110 and the base 130 of the battery accommodating portion 100 may be provided with heat dissipation ports.

[0039] It can be understood that making the base 130 of the battery accommodating portion 100 thicker can enable the base 130 to bear the weight of the air-cooled battery 200, and setting the top wall 110 of the battery accommodating portion 100 thinner can make the top wall 110 encounter less pressure when deforming, thereby providing a better buffering effect on the expansion of the air-cooled battery 200.

[0040] In an optional implementation, the reinforcing rib 120 is a flexible reinforcing rib.

[0041] It can be understood that the flexible reinforcing ribs are reinforcing ribs 120 made of a flexible material. For example, the flexible reinforcing ribs can be reinforcing ribs 120 made of polyvinyl chloride or rubber.

[0042] It is understandable that the ribs 120 are flexible ribs that can buffer deformation when squeezed, thereby preventing the air-cooled battery 200 abutting against the ribs 120 from being damaged by the ribs 120 , thereby effectively avoiding leakage of the air-cooled battery 200 .

[0043] In an optional implementation, Figures 1 to 3 As shown, the reinforcing ribs 120 include longitudinal reinforcing ribs 122 and transverse reinforcing ribs 121 , and each of the longitudinal reinforcing ribs 122 is connected to all of the transverse reinforcing ribs 121 .

[0044] It should be noted that the number of the longitudinal reinforcing ribs 122 and the transverse reinforcing ribs 121 can be set according to the specific needs of the application and is not limited in detail here.

[0045] It should be noted that the direction of the transverse reinforcing rib 121 in this implementation can be set according to specific needs of the application. For example, the direction of the transverse reinforcing rib 121 can be horizontal, or parallel to a side of the battery accommodating portion 100.

[0046] It can be understood that the longitudinal reinforcing ribs 122 are perpendicular to the transverse reinforcing ribs 121 , which can make the structure of the transverse reinforcing ribs 122 more stable.

[0047] In an optional implementation, Figures 1 to 3 As shown, a gap is provided between any two adjacent transverse reinforcing ribs 121 .

[0048] It is understandable that, since the air-cooled battery 200 generates heat when working, there is a gap between any two adjacent transverse reinforcing ribs 121 , so that the heat generated by the air-cooled battery 200 can be dissipated through the gap between the transverse reinforcing ribs 121 .

[0049] It should be noted that the gap between any two adjacent transverse reinforcing ribs 121 can be set according to the specific needs of the application. For example, in order to allow the heat of the air-cooled battery 200 to be dissipated to the outside more evenly, the gap between any two adjacent transverse reinforcing ribs 121 can be equal.

[0050] In an optional implementation, Figures 1 to 3 As shown, the air-cooled battery anti-expansion device also includes a reinforcing plate 300 , which is respectively arranged on the first side wall and the second side wall of the battery accommodating portion 100 , and the first side wall and the second side wall are both located in the width direction of the air-cooled battery 200 .

[0051] It should be noted that the number of reinforcing plates 300 on the first side wall and the second side wall can be set according to specific needs during application, and the number of reinforcing plates 300 on the first side wall and the second side wall can be equal or unequal.

[0052] It can be understood that the reinforcement plates 300 are provided on both the first side wall and the second side wall, so that the structure of the battery receiving portion 100 can be more stable.

[0053] In an optional implementation, Figures 1 to 3 As shown, each reinforcing plate 300 is gradually convex from the end to the middle.

[0054] It should be noted that the degree of protrusion of each reinforcing plate 300 from the end to the middle can be set according to specific needs during application.

[0055] Optionally, in order to make the pressure on the reinforcing plate 300 more uniform and the structure more stable, the protrusions from both ends of the reinforcing plate 300 to the middle can be symmetrical along the middle.

[0056] It can be understood that by making the reinforcing plate 300 gradually bulge from the end to the middle, the reinforcing plate 300 can support the first side wall and the second side wall, thereby making the battery accommodating portion 100 structure more stable.

[0057] In an optional implementation, Figure 1 and Figure 2 As shown, both the first side wall and the second side wall are provided with holes 160 .

[0058] It is understandable that the holes 160 are provided on both the first side wall and the second side wall, so that the heat generated by the air-cooled battery 200 can be further dissipated, thereby avoiding excessive temperature in the battery accommodating portion 100 and providing a better working environment for the air-cooled battery 200.

[0059] In an optional implementation, Figures 1 to 3 As shown, the air-cooled battery anti-expansion device also includes: a first limit member 140 and a second limit member 150, the first limit member 140 is respectively arranged on both sides close to the first side wall and the longitudinal reinforcement rib 122, and the second limit member 150 is respectively arranged on both sides close to the second side wall and the longitudinal reinforcement rib 122.

[0060] It should be noted that the first limiter 140 and the second limiter 150 in this implementation can be any structure capable of limiting position. For example, the first limiter 140 and the second limiter 150 can be as follows: Figures 1 to 3 As shown in the card slot, the first limiting member 140 and the second limiting member 150 can also be snap-on limiting members, etc.

[0061] Specifically, the number of the first stopper 140 and the second stopper 150 can be set according to the specific needs of the application, for example, Figures 1 to 3 As shown, two first limiting members 140 can be provided on one side of the first side wall, and two can be provided on the side of the longitudinal reinforcing rib 122 close to the first side wall; two second limiting members 150 can be provided on one side of the second side wall, and two can be provided on the side of the longitudinal reinforcing rib 122 close to the second side wall; or three can be provided on each side of the first side wall, the longitudinal reinforcing rib 122 and the second side wall, and so on.

[0062] It can be understood that by providing the first limiting member 140 and the second limiting member 150 , each battery accommodating portion 100 can be installed with two air-cooled batteries 200 , so that more air-cooled batteries 200 can be installed.

[0063] In an optional implementation, the battery receiving portion 100 is an injection molded part.

[0064] Understandably, the advantages of injection molded parts include: the ease with which complex plastic precision parts and assemblies can be designed; injection molded parts have very small tolerances compared to other technologies; automated processes that reduce manufacturing costs; injection molding is an automated process; and the ability to produce efficiently. Once the injection mold is designed according to the specifications given by the customer and the injection molding machine is pre-programmed, the actual molding process used to produce the part becomes very fast.

[0065] The technical solution provided by the present invention is introduced in detail above. The present invention uses specific examples to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

[0066] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An air-cooled battery anti-expansion device, characterized in that: A battery receiving portion is included, the battery receiving portion is used to receive an air-cooled battery, a top wall of the battery receiving portion abuts against the air-cooled battery, and the top wall of the battery receiving portion can buffer deformation when the air-cooled battery expands along the height direction of the air-cooled battery; At least two reinforcing ribs are provided on the side of the battery accommodating portion, each of the reinforcing ribs abuts against the air-cooled battery, the area of ​​the reinforcing rib abutting against the middle of the air-cooled battery is larger than the area of ​​the reinforcing rib abutting against the edge of the air-cooled battery, and the reinforcing ribs can buffer deformation when the air-cooled battery expands along the thickness direction of the air-cooled battery.

2. The air-cooled battery anti-expansion device according to claim 1, characterized in that: The thickness of the top wall of the battery receiving portion is smaller than the thickness of the base of the battery receiving portion.

3. The air-cooled battery anti-expansion device according to claim 1, characterized in that: The reinforcing ribs are flexible reinforcing ribs.

4. The air-cooled battery anti-expansion device according to claim 1, characterized in that: The reinforcing ribs include longitudinal reinforcing ribs and transverse reinforcing ribs, and each of the longitudinal reinforcing ribs is connected to all of the transverse reinforcing ribs.

5. The air-cooled battery anti-expansion device according to claim 4, characterized in that: A gap is arranged between any two adjacent transverse reinforcing ribs.

6. The air-cooled battery anti-expansion device according to claim 4, characterized in that: Also includes: A reinforcing plate is respectively arranged on a first side wall and a second side wall of the battery accommodating portion, and the first side wall and the second side wall are both located in a width direction of the air-cooled battery.

7. The air-cooled battery anti-expansion device according to claim 6, characterized in that: Each reinforcing plate is gradually convex from the end portion to the middle portion.

8. The air-cooled battery anti-expansion device according to claim 6, characterized in that: The first side wall and the second side wall are both provided with holes.

9. The air-cooled battery anti-expansion device according to claim 6, characterized in that: Also includes: A first limiting member and a second limiting member, wherein the first limiting member is respectively arranged on two sides where the first side wall and the longitudinal reinforcing rib are close to each other, and the second limiting member is respectively arranged on two sides where the second side wall and the longitudinal reinforcing rib are close to each other.

10. The air-cooled battery anti-expansion device according to claim 1, characterized in that: The battery receiving portion is an injection molded part.

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