Integrated explosion-proof valve battery aluminum shell and battery

Abstract

The utility model relates to an integrated explosion-proof valve battery aluminum shell and a battery, the integrated explosion-proof valve battery aluminum shell comprises a first wall surface, a second wall surface, a third wall surface and a fourth wall surface which are connected end to end and enclose a cuboid-shaped cavity, and the first wall surface, the second wall surface, the third wall surface and the fourth wall surface are all rectangular; the first wall face and the third wall face are the same in shape and area, the second wall face and the fourth wall face are the same in shape and area, the area of the first wall face is smaller than that of the second wall face, and an anti-explosion valve groove is formed in the first wall face or the third wall face. According to the integrated battery aluminum shell with the anti-explosion valve, the anti-explosion valve groove is formed in the first wall surface or the third wall surface, when the internal pressure of the battery reaches a certain value, the anti-explosion valve groove can be broken to release excessive pressure, the battery is effectively prevented from exploding, the safety of the battery is greatly improved, the production process is simplified due to the design of the anti-explosion valve groove, and the production cost is reduced. And the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of batteries, and in particular to an integrated explosion-proof valve battery aluminum shell and a battery. Background Art

[0002] The current battery explosion-proof valve is usually welded on the top cover. This manufacturing method has certain limitations. First, the production cost of this structure is high because it requires additional processing and welding of the explosion-proof valve. Secondly, the production through the welding process is prone to defective products, which reduces the reliability of the product. In addition, this process has many steps, which reduces production efficiency and increases production costs. Therefore, we need to improve this explosion-proof valve structure to improve the safety, reliability and production efficiency of the battery and reduce production costs. Utility Model Content

[0003] In view of this, the utility model provides an integrated explosion-proof valve battery aluminum shell and a battery. Different from the traditional explosion-proof valve structure, an explosion-proof valve groove is arranged on the first wall or the third wall. When the internal pressure of the battery reaches a certain value, the explosion-proof valve groove will break open to release excess pressure, effectively preventing the battery from exploding, greatly improving the safety of the battery. The design of the explosion-proof valve groove simplifies the production process and reduces manufacturing costs.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] An integrated explosion-proof valve battery aluminum shell comprises a first wall, a second wall, a third wall and a fourth wall which are connected end to end and enclose a rectangular chamber, wherein the first wall, the second wall, the third wall and the fourth wall are all rectangular in shape, the first wall and the third wall have the same shape and equal area, the second wall and the fourth wall have the same shape and equal area, the area of ​​the first wall is smaller than that of the second wall, and an explosion-proof valve groove is provided on the first wall or the third wall.

[0006] Unlike the traditional explosion-proof valve structure, an explosion-proof valve groove is arranged on the first wall or the third wall. When the internal pressure of the battery reaches a certain value, the explosion-proof valve groove will break open to release excess pressure, effectively preventing the battery from exploding and greatly improving the safety of the battery. The design of the explosion-proof valve groove simplifies the production process and reduces manufacturing costs.

[0007] Preferably, the explosion-proof valve groove comprises a main groove, and the direction of the main groove is parallel to the long side of the first wall surface or the third wall surface.

[0008] The design of the main groove enables the explosion-proof valve to accurately crack along the main groove when the internal pressure of the battery reaches a set value, thereby effectively releasing excess pressure and preventing the battery from exploding. Since the direction of the main groove is parallel to the long side of the first wall or the third wall, the explosion-proof valve can open more smoothly and more easily, avoiding the problem of the explosion-proof valve being unable to crack and further improving the explosion-proof performance.

[0009] Preferably, the main groove is located on the central axis of the first wall surface or the third wall surface.

[0010] The main groove is located on the central axis of the first wall surface or the third wall surface, so that the explosion-proof valve is easier to crack and the explosion-proof performance is improved.

[0011] Preferably, the explosion-proof valve groove further includes a first edge groove and a second edge groove respectively located at two ends of the main groove.

[0012] The explosion-proof valve groove also includes a first edge groove and a second edge groove respectively located at the two ends of the main groove. This design increases the easy-to-split property of the explosion-proof valve groove and avoids the phenomenon that the explosion-proof valve groove cannot be split and damages the battery.

[0013] Preferably, the first edge groove is perpendicular to the main groove.

[0014] The first edge groove is perpendicular to the main groove, so that the first edge groove can increase the easy-to-break property of the explosion-proof valve groove, making the explosion-proof valve easier to break and improving the explosion-proof performance.

[0015] Preferably, the second edge groove is perpendicular to the main groove.

[0016] The second edge groove is perpendicular to the main groove, so that the second edge groove can increase the easy-to-break property of the explosion-proof valve groove, making the explosion-proof valve easier to break and improving the explosion-proof performance.

[0017] Preferably, the explosion-proof valve groove further includes a secondary groove located in the middle of the main groove.

[0018] The combination of the main groove and the auxiliary groove enables the explosion-proof valve to crack more stably and reliably when the internal pressure of the battery reaches a set value, further improving the explosion-proof performance.

[0019] Preferably, the secondary groove is perpendicular to the primary groove.

[0020] The vertically designed auxiliary groove increases the easy-to-crack characteristic of the explosion-proof valve groove, making the explosion-proof valve easier to crack, improving the explosion-proof performance and further improving the pressure release efficiency.

[0021] Preferably, the cross-sections of the main groove, the first edge groove, the second edge groove and the auxiliary groove are trapezoidal.

[0022] The cross sections of the main groove, the first edge groove, the second edge groove and the auxiliary groove are trapezoidal, so that the explosion-proof valve groove is easier to crack, and the easy-to-crack property of the explosion-proof valve groove is increased.

[0023] A battery comprises the integrated explosion-proof valve battery aluminum shell.

[0024] The design of the integrated explosion-proof valve battery aluminum shell integrates the explosion-proof valve structure into the battery aluminum shell, reducing additional structural components and improving the safety and reliability of the battery. At the same time, since the integrated design avoids process steps such as welding, it reduces production costs and defective product rates and improves production efficiency. The design of the integrated explosion-proof valve battery aluminum shell can be easily integrated into the existing battery production line without major modifications or adjustments to the production line, reducing production costs and time costs. This explosion-proof valve groove design can not only be used on ordinary lithium batteries, but can also be applied to other types of batteries, such as nickel-hydrogen batteries, nickel-cadmium batteries, etc., and has a wide range of applicability.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The integrated explosion-proof valve battery aluminum shell of the utility model is different from the traditional explosion-proof valve structure. Instead, an explosion-proof valve groove is provided on the first wall surface or the third wall surface. When the internal pressure of the battery reaches a certain value, the explosion-proof valve groove will break open to release excess pressure, effectively preventing the battery from exploding and greatly improving the safety of the battery. The design of the explosion-proof valve groove simplifies the production process and reduces manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a structural diagram of an aluminum battery shell with an integrated explosion-proof valve according to an embodiment of the present utility model.

[0029] Figure 2 It is a top view of an aluminum shell of a battery with an integrated explosion-proof valve according to an embodiment of the present invention.

[0030] Figure 3 This is a cross-sectional view of the first wall of an embodiment of the utility model. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0033] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 application.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0035] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0036] The present embodiment provides an integrated explosion-proof valve battery aluminum shell, comprising a first wall 10, a second wall 20, a third wall 30 and a fourth wall 40 connected end to end and enclosing a rectangular chamber, the first wall 10, the second wall 20, the third wall 30 and the fourth wall 40 are all rectangular in shape, the first wall 10 and the third wall 30 have the same shape and equal area, the second wall 20 and the fourth wall 40 have the same shape and equal area, the area of ​​the first wall 10 is smaller than the area of ​​the second wall 20, and an explosion-proof valve groove 50 is provided on the first wall 10. In other embodiments, the explosion-proof valve groove may also be provided on the third wall.

[0037] Different from the traditional explosion-proof valve structure, an explosion-proof valve groove 50 is provided on the first wall 10. When the internal pressure of the battery reaches a certain value, the explosion-proof valve groove 50 will break open to release excess pressure, effectively preventing the battery from exploding, greatly improving the safety of the battery. The design of the explosion-proof valve groove 50 simplifies the production process and reduces manufacturing costs.

[0038] In this embodiment, the explosion-proof valve groove 50 includes a main groove 51 , and the direction of the main groove 51 is parallel to the long side of the first wall surface 10 .

[0039] The design of the main groove 51 enables the explosion-proof valve to accurately crack along the main groove 51 when the internal pressure of the battery reaches a set value, thereby effectively releasing excess pressure and preventing the battery from exploding. Since the direction of the main groove 51 is parallel to the long side of the first wall 10 or the third wall 30, the explosion-proof valve can be cracked more smoothly and more easily, thus avoiding the problem of the explosion-proof valve being unable to crack and further improving the explosion-proof performance.

[0040] In this embodiment, the main groove 51 is located on the central axis of the first wall surface 10 .

[0041] The main groove 51 is located on the central axis of the first wall surface 10 or the third wall surface 30 , so that the explosion-proof valve is more likely to crack, thereby improving the explosion-proof performance.

[0042] In this embodiment, the explosion-proof valve groove 50 further includes a first edge groove 52 and a second edge groove 53 respectively located at two ends of the main groove 51 .

[0043] The explosion-proof valve groove 50 also includes a first edge groove 52 and a second edge groove 53 respectively located at the two ends of the main groove 51. This design increases the easy-to-break property of the explosion-proof valve groove 50 and avoids the phenomenon that the explosion-proof valve groove 50 cannot break and damage the battery.

[0044] In this embodiment, the first edge groove 52 is perpendicular to the main groove 51 .

[0045] The first edge groove 52 is perpendicular to the main groove 51 , so that the first edge groove 52 can increase the easy-to-break property of the explosion-proof valve groove 50 , making the explosion-proof valve more easily breakable, thereby improving the explosion-proof performance.

[0046] In this embodiment, the second edge groove 53 is perpendicular to the main groove 51 .

[0047] The second edge groove 53 is perpendicular to the main groove 51 , so that the second edge groove 53 can increase the easy-to-break property of the explosion-proof valve groove 50 , making the explosion-proof valve more easily breakable, thereby improving the explosion-proof performance.

[0048] In this embodiment, the explosion-proof valve groove 50 further includes a secondary groove 54 located in the middle of the main groove 51 .

[0049] The combination of the main groove 51 and the auxiliary groove 54 enables the explosion-proof valve to be more stably and reliably opened when the internal pressure of the battery reaches a set value, thereby further improving the explosion-proof performance.

[0050] In this embodiment, the secondary groove 54 is perpendicular to the primary groove 51 .

[0051] The vertically designed auxiliary groove 54 increases the easy-to-break characteristic of the explosion-proof valve groove 50, making the explosion-proof valve easier to break, improving the explosion-proof performance and further improving the pressure release efficiency.

[0052] In this embodiment, the cross-sections of the main groove 51 , the first edge groove 52 , the second edge groove 53 , and the auxiliary groove 54 are trapezoidal.

[0053] The cross-sections of the main groove 51 , the first edge groove 52 , the second edge groove 53 , and the auxiliary groove 54 are trapezoidal, so that the explosion-proof valve groove 50 is easier to crack, thereby increasing the easy-to-crack property of the explosion-proof valve groove 50 .

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated explosion-proof valve battery aluminum shell, characterized in that: The invention comprises a first wall, a second wall, a third wall and a fourth wall which are connected end to end and enclose a rectangular chamber, wherein the shapes of the first wall, the second wall, the third wall and the fourth wall are all rectangular, the shapes of the first wall and the third wall are the same and the areas are equal, the shapes of the second wall and the fourth wall are the same and the areas are equal, the area of ​​the first wall is smaller than that of the second wall, and an explosion-proof valve groove is arranged on the first wall or the third wall.

2. The integrated explosion-proof valve battery aluminum shell according to claim 1, characterized in that: The explosion-proof valve groove comprises a main groove, and the direction of the main groove is parallel to the long side of the first wall surface or the third wall surface.

3. The integrated explosion-proof valve battery aluminum shell according to claim 2 is characterized in that: The main groove is located on the central axis of the first wall surface or the third wall surface.

4. The integrated explosion-proof valve battery aluminum shell according to claim 1, characterized in that: The explosion-proof valve groove further comprises a first edge groove and a second edge groove respectively located at two ends of the main groove.

5. The integrated explosion-proof valve battery aluminum shell according to claim 4, characterized in that: The first edge groove is perpendicular to the main groove.

6. The integrated explosion-proof valve battery aluminum shell according to claim 4, characterized in that: The second edge groove is perpendicular to the main groove.

7. The integrated explosion-proof valve battery aluminum shell according to claim 1, characterized in that: The explosion-proof valve groove also includes a secondary groove located in the middle of the main groove.

8. The integrated explosion-proof valve battery aluminum shell according to claim 7, characterized in that: The secondary groove is perpendicular to the primary groove.

9. The integrated explosion-proof valve battery aluminum shell according to claim 4, characterized in that: The cross sections of the main groove, the first edge groove, the second edge groove and the auxiliary groove are trapezoidal.

10. A battery, characterized in that: A battery aluminum shell comprising an integrated explosion-proof valve as described in any one of claims 1 to 9.

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