A battery

Abstract

The utility model discloses a battery, the battery includes setting on the explosion -proof valve of casing and setting on the support of the casing of explosion -proof valve around support and avoid spare, support and avoid spare support the external space of casing at explosion -proof valve place to supply the explosion -proof valve to outward stretch when the explosion -proof valve breaks open. In the utility model, explosion -proof valve and support and avoid spare all set up on the casing, and support and avoid spare arrange around explosion -proof valve to constitute the space of avoiding, ensure that explosion -proof valve can break open and release gas rapidly without obstruction when the internal pressure of battery is abnormal, has improved the reliability and efficiency of explosion -proof valve, support and avoid spare not only can optimize space utilization, still strengthened the structural strength of battery, has promoted the impact -resistance and the vibration -resistance ability.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery. Background Technology

[0002] Currently, as batteries undergo charge and discharge cycles, especially under abnormal conditions such as overcharging, short circuits, or high temperatures, excessive gas may be generated inside the battery, causing a sharp rise in internal pressure. If this pressure cannot be effectively released, the battery casing may rupture due to its inability to withstand the internal high pressure, or even cause an explosion. To address this issue, when the internal gas pressure of the battery reaches a preset safety threshold, an automatically opening explosion-proof valve is used to release the high-pressure gas inside the battery. However, the opening effect of traditional explosion-proof valves and the space utilization efficiency of the explosion-proof valve installation location are often limited by the battery structure design. Summary of the Invention

[0003] This utility model provides a battery to solve the technical problem of the limitation of the space extension of the explosion-proof valve in the battery structure in the prior art.

[0004] This utility model provides a battery, including an explosion-proof valve disposed on a housing and a support and clearance member disposed on the housing around the explosion-proof valve. The support and clearance member supports the external space of the housing at the explosion-proof valve so that it can extend outward when the explosion-proof valve explodes.

[0005] Optionally, the housing is provided with an installation port, and a cover plate assembly is provided at the installation port. The explosion-proof valve is located on the side of the housing opposite to the installation port.

[0006] Optionally, the support and clearance component is an insulating adhesive component, which is attached to the housing.

[0007] Optionally, the explosion-proof valve is located in the middle of the bottom surface of the housing, and the support clearance member is located at the edge of the bottom surface of the housing.

[0008] Optionally, the thickness of the support and clearance member is 0.38-0.42 mm.

[0009] Optionally, the support clearance member includes a first annular protrusion surrounding the explosion-proof valve, the inner annular wall of the first annular protrusion forming a clearance space for the explosion-proof valve to extend; or

[0010] The support clearance component further includes at least two support protrusions spaced at intervals on the housing around the explosion-proof valve; the clearance space is formed by the at least two support protrusions.

[0011] Optionally, the battery further includes a stabilizing clearance member disposed on the side of the housing with the mounting opening; the stabilizing clearance member supports the external space of the housing at the mounting opening.

[0012] Optionally, the stabilizing clearance member includes a second annular protrusion surrounding the mounting opening; or

[0013] The stabilizing clearance member includes at least two stabilizing protrusions spaced apart around the mounting port on the top surface of the housing.

[0014] Optionally, the battery structure further includes a conductive reinforcing sheet welded to the cover plate assembly, wherein the top surface of the stabilizing clearance member is flush with the top surface of the conductive reinforcing sheet.

[0015] Optionally, the thickness of the stabilizing and abutting component is 0.38-0.42 mm.

[0016] In this utility model, the battery includes an explosion-proof valve disposed on the housing and a support and clearance member disposed on the housing around the explosion-proof valve. The support and clearance member supports the external space of the housing at the explosion-proof valve so that it can extend outward when the explosion-proof valve explodes.

[0017] In this invention, since both the explosion-proof valve and the supporting clearance component are mounted on the housing, with the supporting clearance component positioned around the explosion-proof valve to create a clearance space for its extension, when the internal gas pressure of the battery abnormally increases, the clearance space formed by the supporting clearance component around the explosion-proof valve provides sufficient extension space for the valve to open, preventing obstruction by the housing or other components and improving its reliability and efficiency. Furthermore, the placement of the supporting clearance component and the explosion-proof valve is not limited to specific locations. The supporting clearance component not only provides the necessary space for the explosion-proof valve to open but also optimizes the space utilization efficiency inside the battery. To a certain extent, the supporting clearance component can also enhance the structural strength of the battery, thereby improving its impact and vibration resistance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the battery structure in one embodiment of the present invention.

[0020] The reference numerals in the accompanying drawings are as follows:

[0021] 10 - Housing, 20 - Support and clearance component, 30 - Stabilizing and clearance component. Detailed Implementation

[0022] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figure 1 As shown, one embodiment of this utility model provides a battery, including an explosion-proof valve (not shown) disposed on a housing 10 and a support and clearance member 20 disposed on the housing 10 around the explosion-proof valve. The support and clearance member 20 supports the external space of the housing 10 at the explosion-proof valve so that it can extend outward when the explosion-proof valve explodes. The explosion-proof valve is disposed on the housing 10, and the support and clearance member 20 is disposed on the housing 10 and arranged around the explosion-proof valve. Furthermore, the placement of the support and clearance member 20 and the explosion-proof valve is not limited to a specific location and can be flexibly adjusted according to the battery structure and actual needs. For example, the explosion-proof valve can be disposed at the bottom of the housing 10, and the support and clearance member 20 can be correspondingly disposed on the outer bottom wall of the housing 10 and arranged around the explosion-proof valve; the explosion-proof valve can also be disposed on the side wall of the housing 10, and the support and clearance member 20 can also be correspondingly disposed on the side wall to adapt to different positional design requirements of the explosion-proof valve.

[0026] In this invention, since both the explosion-proof valve and the support and clearance member 20 are mounted on the housing 10, and the support and clearance member 20 is positioned around the explosion-proof valve on the housing 10 to form a clearance space for the explosion-proof valve to extend, when the internal gas pressure of the battery abnormally increases, the clearance space formed by the support and clearance member 20 around the explosion-proof valve provides sufficient extension space for the explosion-proof valve to open, preventing it from being obstructed by the housing 10 or other components, thus improving the reliability and efficiency of the explosion-proof valve. Furthermore, the placement of the support and clearance member 20 and the explosion-proof valve is not limited to a specific location. The support and clearance member 20 not only provides the necessary space for the explosion-proof valve to open but also optimizes the space utilization efficiency inside the battery. To a certain extent, the support and clearance member 20 can also enhance the structural strength of the battery, thereby improving its impact resistance and vibration resistance.

[0027] In one embodiment, such as Figure 1 As shown, the housing 10 has a mounting port (not shown), and a cover assembly is provided at the mounting port. The explosion-proof valve is located on the opposite side of the housing 10 where the mounting port is located. Understandably, the battery cover assembly is mounted on the mounting port of the housing 10. The mounting port can be located at the top of the housing 10, and the explosion-proof valve is located at the bottom of the housing 10. This arrangement of the explosion-proof valve and the cover assembly opposite each other fully utilizes the internal space of the housing 10, avoiding structural conflicts or redundancy within a limited space. Because the explosion-proof valve is located at the bottom of the housing 10, when the internal pressure of the battery abnormally increases, the gas tends to release downwards. This prevents the high-temperature gas released when the explosion-proof valve opens from directly impacting the cover assembly, reducing obstruction to the heat dissipation channel and facilitating better heat dissipation from inside the battery.

[0028] In one embodiment, such as Figure 1 As shown, the support and clearance component 20 is an insulating adhesive component, which is attached to the housing 10. Understandably, the support and clearance component 20 is an insulating adhesive component, which is attached to the housing 10 or can be thermally bonded to the housing 10. The support and clearance component 20 can be arranged around the explosion-proof valve. When the explosion-proof valve opens to release high-pressure gas, the insulating adhesive component can prevent the charge or sparks in the high-pressure gas from damaging the electronic components around the battery compartment. The insulating adhesive component also has a certain degree of elasticity and toughness, allowing it to adhere to the housing 10 and provide stable support around the explosion-proof valve.

[0029] In one embodiment, such as Figure 1As shown, the explosion-proof valve is located in the middle of the bottom surface of the housing 10, and the support and clearance member 20 is located at the edge of the bottom surface of the housing 10. Understandably, the explosion-proof valve is located in the middle of the bottom surface of the housing, and the support and clearance member 20 is located at the edge of the bottom surface of the housing 10. This not only makes full use of the space at the bottom of the housing 10, but also ensures that the support and clearance member 20 provides stable support for the explosion-proof valve and provides sufficient expansion space when the explosion-proof valve explodes. The gas released when the explosion-proof valve explodes can diffuse evenly in all directions, avoiding gas concentration on one side and causing localized impact on the battery structure.

[0030] In one embodiment, such as Figure 1 As shown, the thickness of the support and clearance member 20 is 0.38-0.42 mm. Understandably, the moderate thickness of the support and clearance member 20 ensures sufficient strength and support while minimizing the space occupied, and also keeps the clearance space within a reasonable range, thus minimizing the space occupied and making the internal structure of the battery more compact. The thickness of the support and clearance member 20 can be set according to the structural requirements of the battery, and the size or shape of the clearance space can be adjusted. Preferably, the thickness of the support and clearance member 20 can be 0.38 mm, 0.4 mm, or 0.42 mm.

[0031] In one embodiment, such as Figure 1 As shown, the support and clearance member 20 includes a first annular protrusion (not shown) surrounding the explosion-proof valve. The inner annular wall of the first annular protrusion forms a clearance space for the extension of the explosion-proof valve. Understandably, the shape of the support and clearance member 20 can be set according to the structural requirements of the battery. When the battery casing 10 is cylindrical, the support and clearance member 20 can be correspondingly set as annular. In this case, the support and clearance member 20 is composed of the first annular protrusion, and the inner annular wall of the first annular protrusion forms a clearance space for the extension of the explosion-proof valve. This design avoids space waste caused by improper shape of the support and clearance member 20, and can precisely control the opening pressure and extension path of the explosion-proof valve, thereby improving the safety performance of the battery.

[0032] Furthermore, in another embodiment, such as Figure 1 As shown, the support and clearance member 20 also includes at least two support protrusions (not shown) spaced apart on the housing 10 around the explosion-proof valve; the clearance space is formed by the at least two support protrusions. Understandably, when the shape of the support and clearance member 20 is set according to the structural requirements of the battery, and the battery housing 10 is a cuboid or other shape, the support and clearance member 20 is composed of at least two support protrusions spaced apart on the housing 10 to form a clearance space. When the internal pressure of the battery abnormally increases, the explosion-proof valve can smoothly open and extend into the clearance space, avoiding safety hazards caused by obstruction or damage.

[0033] In one embodiment, such as Figure 1 As shown, the battery also includes a stabilizing clearance member 30 disposed on the side of the housing 10 with the mounting opening; the stabilizing clearance member 30 supports the external space of the housing 10 at the mounting opening. Understandably, by providing the stabilizing clearance member 30 on the side of the housing 10 with the mounting opening, and by supporting the external space of the housing 10 at the mounting opening, the overall stability of the replaceable battery when placed in the battery compartment and during battery use can be improved, and structural loosening caused by vibration or impact can be reduced.

[0034] In one embodiment, such as Figure 1 As shown, the stabilizing clearance member 30 includes a second annular protrusion (not shown) surrounding the mounting opening. Understandably, the shape of the stabilizing clearance member 30 can also be set according to the structural requirements of the battery. When the battery casing 10 is cylindrical, the stabilizing clearance member 30 can be correspondingly set as annular. In this case, the second annular protrusion of the stabilizing clearance member 30 is arranged around the mounting opening, which not only ensures that the entire replaceable battery maintains extremely high stability when placed in the battery compartment, but also serves as part of the electromagnetic shielding structure, effectively reducing electromagnetic interference between the battery and the battery compartment.

[0035] Furthermore, in another embodiment, such as Figure 1 As shown, the stabilizing clearance member 30 includes at least two stabilizing protrusions (not shown) spaced apart around the mounting opening on the top surface of the housing 10. Understandably, when the shape of the stabilizing clearance member 30 is set according to the structural requirements of the battery, and the battery housing 10 is a cuboid or other shape, the stabilizing clearance member 30 consists of at least two stabilizing protrusions spaced apart on the top surface of the housing 10, surrounding the mounting opening. By designing stabilizing protrusions with specific shapes and sizes, not only can the compatibility between the battery and the battery compartment be further optimized, but the battery can also be positioned more accurately when placed in the battery compartment.

[0036] In one embodiment, such as Figure 1 As shown, the thickness of the stabilizing clearance member 30 is 0.38-0.42 mm. Understandably, the moderate thickness of the stabilizing clearance member 30 ensures a high degree of stability when the entire battery is placed in the battery compartment. The thickness of the stabilizing clearance member 30 can be set according to the structural requirements of the battery; its size or shape can be adjusted. Preferably, the thickness of the stabilizing clearance member 30 can be 0.38 mm, 0.4 mm, or 0.42 mm.

[0037] In the battery described in the above embodiments of this utility model, since both the explosion-proof valve and the support and clearance member 20 are disposed on the housing 10, and the support and clearance member 20 is disposed on the housing 10 around the explosion-proof valve to form a clearance space for the extension of the explosion-proof valve, when the internal gas pressure of the battery rises abnormally, the clearance space formed by the support and clearance member 20 around the explosion-proof valve provides sufficient extension space for the explosion-proof valve to open, and the explosion-proof valve will not be obstructed by the housing 10 or other components, thus improving the reliability and efficiency of the explosion-proof valve. Furthermore, the placement of the support and clearance member 20 and the explosion-proof valve is not limited to a specific location. The support and clearance member 20 not only provides the necessary space for the explosion-proof valve to open, but also optimizes the space utilization efficiency inside the battery; the support and clearance member 20 can also enhance the structural strength of the battery to a certain extent, thereby improving the battery's impact resistance and vibration resistance.

[0038] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A battery, characterized in that, It includes an explosion-proof valve disposed on a housing (10) and a support and clearance member (20) disposed on the housing (10) around the explosion-proof valve. The support and clearance member (20) supports the external space of the housing (10) at the explosion-proof valve so that the explosion-proof valve can extend outward when it bursts open.

2. The battery according to claim 1, characterized in that, The housing (10) is provided with an installation port, and a cover plate assembly is provided at the installation port. The explosion-proof valve is located on the opposite side of the housing (10) where the installation port is provided.

3. The battery according to claim 1, characterized in that, The support and clearance component (20) is an insulating rubber component, and the support and clearance component (20) is attached to the housing (10).

4. The battery according to claim 2, characterized in that, The explosion-proof valve is located in the middle of the bottom surface of the housing (10), and the support and avoidance member (20) is located at the edge of the bottom surface of the housing (10).

5. The battery according to claim 1, characterized in that, The thickness of the support and clearance member (20) is 0.38-0.42 mm.

6. The battery according to claim 4, characterized in that, The support clearance member (20) includes a first annular protrusion surrounding the explosion-proof valve, the inner annular wall of the first annular protrusion forming a clearance space for the explosion-proof valve to extend; or The support clearance member (20) further includes at least two support protrusions spaced around the explosion-proof valve on the housing (10); the clearance space is formed by the at least two support protrusions.

7. The battery according to claim 1, characterized in that, It also includes a stabilizing clearance member (30) disposed on the side of the housing (10) with the mounting port, the stabilizing clearance member (30) supporting the external space of the housing (10) at the mounting port.

8. The battery according to claim 7, characterized in that, The stabilizing clearance member (30) includes a second annular protrusion surrounding the mounting opening; or The stabilizing clearance member (30) includes at least two stabilizing protrusions spaced around the mounting port on the top surface of the housing (10).

9. The battery according to claim 8, characterized in that, The thickness of the stabilizing and abutting component (30) is 0.38-0.42 mm.

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