CN216648516U - Battery explosion-proof valve protection paster, battery top cap and battery - Google Patents
Battery explosion-proof valve protection paster, battery top cap and battery Download PDFInfo
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- CN216648516U CN216648516U CN202122999710.8U CN202122999710U CN216648516U CN 216648516 U CN216648516 U CN 216648516U CN 202122999710 U CN202122999710 U CN 202122999710U CN 216648516 U CN216648516 U CN 216648516U
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- battery
- proof valve
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- patch
- valve protection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a battery explosion-proof valve protection patch, a battery top cover and a battery, and relates to the technical field of batteries. The battery explosion-proof valve protection patch comprises a patch body and an elastic piece, wherein the patch body is used for being attached to an explosion-proof valve arranged on a battery top cover, so that the sealing performance can be ensured, and pollution sources such as electrolyte can be prevented from penetrating through the battery explosion-proof valve protection patch to contact the explosion-proof valve, so that the durability and the safety performance of a battery are influenced; the damage of the explosion-proof valve caused by the direct contact of foreign matters with the explosion-proof valve can be avoided. Be provided with the mounting hole on the paster body, the elastic component sets up in the mounting hole, and the elastic component is used for taking place elastic deformation under the condition that the both sides atmospheric pressure of battery explosion-proof valve protection paster changes to can play the cushioning effect, realize balanced atmospheric pressure, avoid because pressure differential is too big and lead to battery explosion-proof valve protection paster to drop, become invalid.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery explosion-proof valve protection patch, a battery top cover and a battery.
Background
The existing secondary battery usually sticks a protective patch at the position of an explosion-proof valve so as to fix and seal the periphery of the contact surface of the protective patch and a top cover by glue. In the use process of the battery, because the pressure change can cause the adhesive failure of the patch, the periphery of the upper edge of the explosion-proof valve is provided with a groove or a hole on the protective sheet, and the like, so as to keep the internal and external air pressures of the explosion-proof valve balanced.
However, the explosion-proof valve cannot be completely protected by the through-hole or grooved protective patch, the electrolyte and the like can still pollute the explosion-proof valve through the hole or groove, and the design of directly plugging the hole or groove of the protective patch can lead to degumming and failure of the patch due to pressure change at two sides of the protective patch in the process of manufacturing and using the battery core.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery explosion-proof valve protection patch, a battery top cover and a battery, which can improve the sealing performance of the battery explosion-proof valve protection patch relative to an explosion-proof valve and can prevent a pollution source from contacting the explosion-proof valve through a protection sheet.
The embodiment of the utility model is realized by the following steps:
in a first aspect, the utility model provides a battery explosion-proof valve protection patch, which comprises a patch body and an elastic part, wherein the patch body is used for being attached to an explosion-proof valve arranged on a battery top cover, the patch body is provided with a mounting hole, the elastic part is connected with the patch body and covers the mounting hole, and the elastic part is used for generating elastic deformation under the condition that air pressure on two sides of the battery explosion-proof valve protection patch changes.
In an alternative embodiment, the shape of the resilient member is adapted to the shape of the mounting hole.
In an alternative embodiment, the edge of the elastic member is thermally compositely connected with the side wall of the mounting hole.
In an alternative embodiment, the shape of the elastic member is adapted to the shape of the patch body, the number of the patch bodies includes two, and the elastic member is disposed between the two patch bodies.
In an alternative embodiment, the elastic member is bonded or thermocompressed to the two patch bodies.
In an alternative embodiment, the elastic member is rubber.
In an alternative embodiment, the patch body and the mounting hole are both waist-shaped, and the mounting hole is opened in the middle of the patch body.
In an optional embodiment, the battery explosion-proof valve protection patch further comprises an adhesive layer, wherein the adhesive layer is attached to the patch body and used for connecting the patch body and the battery top cover.
In a second aspect, the utility model provides a battery top cover, which comprises the battery explosion-proof valve protection patch as described in any one of the foregoing embodiments and a battery top cover body, wherein the battery top cover body is provided with an explosion-proof valve, and the battery explosion-proof valve protection patch is attached to the explosion-proof valve on the battery top cover body.
In a third aspect, the present invention provides a battery comprising a battery top cover as described in the previous embodiments.
The battery explosion-proof valve protection patch, the battery top cover and the battery provided by the embodiment of the utility model have the beneficial effects that: the battery explosion-proof valve protection patch is attached to the explosion-proof valve of the battery top cover, so that the sealing performance can be ensured, and pollution sources such as electrolyte passing through the battery explosion-proof valve protection patch to contact the explosion-proof valve are prevented from affecting the durability, the safety performance of the battery and the like; the damage of the explosion-proof valve caused by the direct contact of foreign matters with the explosion-proof valve can be avoided. Meanwhile, the elastic piece is elastically deformed under the condition that the air pressures on the two sides of the battery explosion-proof valve protection patch change, so that the buffer effect can be achieved, the air pressure can be balanced, and the situation that the battery explosion-proof valve protection patch falls off and fails due to overlarge pressure difference can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a battery top cover according to an embodiment of the present invention;
FIG. 2 is an exploded view of a first embodiment of a protective patch for a battery explosion-proof valve in accordance with an embodiment of the present invention;
fig. 3 is an exploded view of a second embodiment of a protection patch for a battery explosion-proof valve in accordance with an embodiment of the present invention.
Icon: 10-a battery top cover; 100-battery explosion-proof valve protection patch; 110-a patch body; 111-mounting holes; 120-an elastic member; 130-glue layer; 200-a battery top cap body; 210-a groove; 220-explosion-proof valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First embodiment
Referring to fig. 1, the present invention provides a battery (not shown) applied to an electronic device, an electric tool, an electric vehicle, and the like, wherein the battery includes a battery top cover 10, a battery core (not shown), and the like.
Further, the utility model provides a battery top cover 10, which is used for covering the battery core. The battery top cover 10 comprises a battery explosion-proof valve protection patch 100 and a battery top cover body 200, wherein the battery top cover body 200 is provided with an explosion-proof valve 220, and the battery explosion-proof valve protection patch 100 is attached to the explosion-proof valve 220 on the battery top cover body 200.
In this embodiment, the battery top cover 10 is provided with a groove 210, the explosion-proof valve 220 is welded in the groove 210, and the battery explosion-proof valve protection patch 100 is attached to the groove 210 to cover the explosion-proof valve 220, so as to seal and protect the explosion-proof valve 220. It should be noted that a gap is left between the battery explosion-proof valve protection patch 100 and the explosion-proof valve 220. In addition, since the battery top cover 10 and the explosion-proof valve 220 are both in the prior art, they are not described in detail herein.
Referring to fig. 1 and fig. 2 in combination, the patch 100 for protecting the explosion-proof valve of the battery provided by the utility model includes a patch body 110, an elastic member 120 and an adhesive layer 130, wherein the patch body 110 is used for being attached to an explosion-proof valve 220 arranged on the top cover 10 of the battery, the patch body 110 is provided with a mounting hole 111, the elastic member 120 is connected with the patch body 110 and covers the mounting hole 111, and the elastic member 120 is used for being elastically deformed when the air pressure at two sides of the patch 100 for protecting the explosion-proof valve of the battery is changed.
In this embodiment, the patch body 110 is attached to the surface of the battery top cover 10 and is located right above the explosion-proof valve 220, and the elastic member 120 is connected to the patch body 110 and covers the mounting hole 111, so as to form the battery explosion-proof valve protection patch 100 with sealing performance. Therefore, the battery explosion-proof valve protection patch 100 is attached to the explosion-proof valve 220 of the battery top cover 10, so that the sealing performance can be ensured, and pollution sources such as electrolyte penetrating through the battery explosion-proof valve protection patch 100 to contact the explosion-proof valve 220 are prevented from affecting the durability, the safety performance of the battery and the like; and the damage to the explosion-proof valve 220 caused by the foreign matter directly touching the explosion-proof valve 220 can be avoided. Meanwhile, the elastic member 120 elastically deforms when the air pressure on the two sides of the battery explosion-proof valve protection patch 100 changes, so that a buffering effect can be achieved, air pressure balance is achieved, and the phenomenon that the battery explosion-proof valve protection patch 100 falls off and fails due to excessive pressure difference is avoided.
Further, the patch body 110 and the mounting hole 111 are both waist-shaped, and the mounting hole 111 is opened in the middle of the patch body 110.
In this embodiment, the patch body 110 is provided with the waist-shaped mounting hole 111, so that the distances from the inner side to the outer side of the patch body 110 are equal or approximately equal, and thus the stress of the battery explosion-proof valve protection patch 100 is more balanced under the condition that the air pressures on the two sides are changed, and the structural strength of the battery explosion-proof valve protection patch 100 is improved.
Further, the shape of the elastic member 120 is adapted to the shape of the mounting hole 111.
In this embodiment, the elastic member 120 is also waist-shaped and fits into the mounting hole 111, and the size of the elastic member 120 is equal to or slightly larger than the mounting hole 111 to ensure that the elastic member 120 can be just mounted in the mounting hole 111.
It is understood that, in other embodiments, the patch body 110, the mounting hole 111, and the elastic member 120 may have other shapes, and the mounting hole 111 may be opened in a non-central portion of the patch body 110, which is not limited herein.
Further, the edge of the elastic member 120 is thermally compositely coupled with the sidewall of the mounting hole 111.
In this embodiment, the edge of the elastic member 120 is connected to the sidewall of the mounting hole 111 by thermal compounding, so that the sealing property of the connection of the elastic member 120 can be ensured, and the connection stability can be improved, and the elastic member 120 is ensured to be firmly connected to the mounting hole 111, thereby improving the service life of the battery explosion-proof valve protection patch 100.
Alternatively, the elastic member 120 may be connected to the sidewall of the mounting hole 111 by welding.
Further, the elastic member 120 is rubber.
In this embodiment, the elastic member 120 is made of a high elastic polymer material, such as rubber. By adopting rubber as the elastic member 120, the battery explosion-proof valve protection patch 100 can be greatly deformed under the condition that the air pressures on the two sides of the battery explosion-proof valve protection patch 100 change, so that the buffer effect is achieved, the air pressure is balanced, and the elastic member 120 can be restored to the original state after the pressure difference disappears, so that the sealing performance of the battery explosion-proof valve protection patch 100 is ensured, meanwhile, the installation stability of the battery explosion-proof valve protection patch 100 is improved through the high elastic performance of the elastic member 120, and the patch body 110 is prevented from falling off.
Further, the adhesive layer 130 is attached to the patch body 110 for connecting the patch body 110 and the battery top cover 10.
In this embodiment, the adhesive layer 130 is in an annular sheet shape, the adhesive layer 130 is attached to the surface edge of the patch body 110, and the patch body 110 is connected to the battery top cap 10 through the adhesive layer 130, so as to ensure the sealing performance of the battery explosion-proof valve protection patch 100 when being connected to the battery top cap 10, and avoid the explosion-proof valve 220 from being polluted, thereby affecting the use of the battery.
Second embodiment
Referring to fig. 3, the second embodiment is different from the first embodiment in that the shape of the elastic member 120 is adapted to the shape of the patch body 110, the number of the patch bodies 110 includes two, and the elastic member 120 is disposed between the two patch bodies 110. For the sake of brief description, the embodiment is not mentioned, and the corresponding contents in the first embodiment can be referred to.
In this embodiment, the elastic member 120 is interposed between the two patch bodies 110 and covers the mounting hole 111, so that the structural strength and the sealing performance of the protection patch 100 for the explosion-proof valve of the battery can be further improved, and the protection patch is suitable for batteries with larger air pressure change in the manufacturing process or the using process.
In addition, the shape of the elastic member 120 is adapted to the shape of the patch body 110, and the size of the elastic member 120 is larger than the size of the inner side of the patch body 110 and smaller than or equal to the size of the outer side of the patch body 110, so that the elastic performance of the elastic member 120 is further increased, thereby further improving the durability of the battery explosion-proof valve protection patch 100 and the safety performance of the battery.
Further, the elastic member 120 is bonded to the two patch bodies 110 by adhesive or thermal compression.
In this embodiment, the elastic member 120 is connected to the patch body 110 by glue or by thermal compression, so as to ensure the sealing performance and structural stability of the battery explosion-proof valve protection patch 100.
Of course, the elastic member 120 and the patch body 110 may be connected by other methods, and are not limited in particular.
In summary, the utility model provides a battery explosion-proof valve protection patch 100, a battery top cover 10 and a battery, wherein the battery top cover 10 covers a battery core, and the battery explosion-proof valve protection patch 100 is attached to an explosion-proof valve 220 of the battery top cover 10, so that the sealing performance can be ensured, and pollution sources such as electrolyte passing through the battery explosion-proof valve protection patch 100 to contact the explosion-proof valve 220 are prevented from affecting the durability and the safety performance of the battery; and the damage to the explosion-proof valve 220 caused by the foreign matter directly touching the explosion-proof valve 220 can be avoided. Meanwhile, the elastic member 120 elastically deforms when the air pressures on the two sides of the battery explosion-proof valve protection patch 100 change, so that a buffering effect can be achieved, air pressure balance is achieved, and the battery explosion-proof valve protection patch 100 is prevented from falling off and losing efficacy due to overlarge pressure difference. By adopting rubber as the elastic member 120, the elastic member 120 can be greatly deformed under the condition that the air pressure on the two sides of the battery explosion-proof valve protection patch 100 changes, so that the buffer effect is achieved, the effect of balancing the air pressure is achieved, and the elastic member 120 can be restored after the pressure difference disappears. The edge of the elastic member 120 is connected with the side wall of the mounting hole 111 through thermal compounding, so that the connection tightness of the elastic member 120 can be ensured, the connection stability can be improved, and the elastic member 120 is firmly connected with the mounting hole 111, thereby prolonging the service life of the battery explosion-proof valve protection patch 100. Through locating elastic component 120 clamp between two paster bodies 110, can further improve the structural strength of battery explosion-proof valve protection paster 100, further strengthen the elastic property of elastic component 120, and then further promote the durability of battery explosion-proof valve protection paster 100 and the security performance of battery.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a battery explosion-proof valve protection paster, its characterized in that, includes paster body and elastic component, the paster body is used for pasting the explosion-proof valve department of locating the setting of battery top cap, be provided with the mounting hole on the paster body, the elastic component with this body coupling of paster covers the mounting hole, the elastic component is used for taking place elastic deformation under the condition that the both sides atmospheric pressure of battery explosion-proof valve protection paster changes.
2. The battery explosion valve protection patch as defined in claim 1, wherein the shape of the elastic member is adapted to the shape of the mounting hole.
3. The battery explosion proof valve protection patch as defined in claim 1 wherein the edge of the elastomeric member is in thermal compound connection with the side wall of the mounting hole.
4. The battery explosion-proof valve protection patch as recited in claim 1, wherein the shape of the elastic member is adapted to the shape of the patch body, the number of patch bodies includes two, and the elastic member is disposed between the two patch bodies.
5. The battery explosion-proof valve protection patch as defined in claim 1, wherein the elastic member is bonded or thermocompressed to both of the patch bodies.
6. The patch for protecting an explosion proof valve of a battery as claimed in any one of claims 1 to 5, wherein the elastic member is rubber.
7. The battery explosion-proof valve protection patch as recited in claim 1, wherein the patch body and the mounting hole are both waist-shaped, and the mounting hole is opened in the middle of the patch body.
8. The battery explosion-proof valve protection patch as recited in claim 1, further comprising an adhesive layer attached to the patch body for connecting the patch body and the battery top cover.
9. A battery top cover, comprising the battery explosion-proof valve protection patch as claimed in any one of claims 1 to 8 and a battery top cover body, wherein the battery top cover body is provided with an explosion-proof valve, and the battery explosion-proof valve protection patch is attached to the explosion-proof valve on the battery top cover body.
10. A battery comprising the battery top cap of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122999710.8U CN216648516U (en) | 2021-12-01 | 2021-12-01 | Battery explosion-proof valve protection paster, battery top cap and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122999710.8U CN216648516U (en) | 2021-12-01 | 2021-12-01 | Battery explosion-proof valve protection paster, battery top cap and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216648516U true CN216648516U (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122999710.8U Active CN216648516U (en) | 2021-12-01 | 2021-12-01 | Battery explosion-proof valve protection paster, battery top cap and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216648516U (en) |
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2021
- 2021-12-01 CN CN202122999710.8U patent/CN216648516U/en active Active
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