CN217279758U - Explosion-proof valve alarm device and battery - Google Patents
Explosion-proof valve alarm device and battery Download PDFInfo
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- CN217279758U CN217279758U CN202220351890.0U CN202220351890U CN217279758U CN 217279758 U CN217279758 U CN 217279758U CN 202220351890 U CN202220351890 U CN 202220351890U CN 217279758 U CN217279758 U CN 217279758U
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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 belongs to the technical field of the battery, especially, relate to an explosion-proof valve alarm device and battery. The battery is provided with an explosion-proof valve, an explosion-proof valve alarm device is arranged on the explosion-proof valve and comprises a first conductive piece, a first conductive elastic piece and an alarm branch circuit, the first conductive piece is positioned on the explosion-proof valve and is in insulated connection with the explosion-proof valve, one end of the first conductive elastic piece is positioned above the first conductive piece, one end of the alarm branch circuit is electrically connected with the first conductive piece, the other end of the alarm branch circuit is electrically connected with the first conductive elastic piece, when the battery is detonated, gas expansion enables the first conductive elastic piece to be pressed downwards to be electrically connected with the first conductive piece, and the first conductive elastic piece, the first conductive piece and the alarm branch circuit form a loop to trigger an alarm signal. The explosion-proof valve alarm device has the advantages of early warning before explosion prevention and avoiding safety accidents.
Description
Technical Field
The utility model belongs to the technical field of the battery, especially, relate to an explosion-proof valve alarm device and battery.
Background
Modern society is stepping into the electronic age, and the electromechanical products in modern society, the variety of electronic equipment are more and more, and wherein, the battery of conveniently carrying and removal use is widely used. The common batteries comprise secondary batteries with increasingly various varieties such as lithium batteries and the like, the secondary batteries such as lithium ion batteries and the like are easy to cause internal short circuit under the overcharge condition, generate a large amount of heat and even catch fire, so that electrolyte is instantly decomposed to generate a large amount of gas, when the internal gas pressure exceeds the pressure limit born by the shell, the batteries explode, but the conventional explosion-proof batteries have no alarm information when approaching detonation, and safety accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an explosion-proof valve alarm device and battery aims at solving the technical problem that the battery among the prior art does not have the early warning before detonating.
In order to achieve the above object, an embodiment of the present invention provides an explosion-proof valve alarm device, which is applied to a battery, the battery has an explosion-proof valve, the explosion-proof valve alarm device is located on the explosion-proof valve, the explosion-proof valve comprises a first conductive piece, a first conductive elastic piece and an alarm branch, the first conductive piece is located on the explosion-proof valve and connected to the explosion-proof valve in an insulating manner, one end of the first conductive elastic piece is located above the first conductive piece, one end of the alarm branch is electrically connected to the first conductive piece and the other end is electrically connected to the first conductive elastic piece, and when the battery is detonated, the gas expands to make the first conductive elastic piece press down and connect to the first conductive piece electrically, the first conductive elastic piece and the alarm branch form a loop to trigger alarm signal.
Preferably, a flexible explosion-proof piece is further arranged on the explosion-proof valve, the first conductive elastic sheet corresponds to the lower portion of the flexible explosion-proof piece, and the battery expands gas during detonation to enable the flexible explosion-proof piece to deform downwards so as to enable the first conductive elastic sheet to be pressed downwards.
Preferably, the explosion-proof valve has a first periphery, and the flexible explosion-proof piece has a second outer edge part and a second periphery, and the second periphery is distributed along the periphery of the second outer edge part and is tightly attached to the first periphery from the outer side.
Preferably, an insulating part is further arranged on the explosion-proof valve, and the first conductive part is located on the insulating part.
Preferably, the explosion-proof valve is further provided with a puncturing device, and the puncturing device comprises more than one sharp corner positioned on the explosion-proof valve.
Preferably, the explosion-proof valve is provided with a first sealing ring, and the first sealing ring is sleeved on the periphery of the second periphery from the outside.
Preferably, the first sealing ring is a sealing rubber ring, and the height of the first sealing ring is greater than that of the second periphery.
Preferably, the explosion-proof valve is further provided with an overcharge disconnecting device, the overcharge disconnecting device comprises a second conductive piece, a second conductive elastic piece and a charging power supply branch, the second conductive elastic piece is located on the explosion-proof valve and is in insulated connection with the explosion-proof valve, one end of the second conductive elastic piece is electrically connected with the first conductive elastic piece, the other end of the second conductive elastic piece is electrically connected with the second conductive piece, one end of the charging power supply branch is electrically connected with the first conductive elastic piece, the other end of the charging power supply branch is electrically connected with the second conductive piece, when a battery is detonated, gas expands to enable the first conductive elastic piece to be pressed down to be disconnected with the second conductive elastic piece, and the first conductive elastic piece, the second conductive piece and the charging power supply branch cannot form an effective loop to enable the battery not to be charged and powered.
Preferably, the first conductive elastic sheet has a fixed end and a movable end, the fixed end is fixed on the explosion-proof valve, and the movable end corresponds to the upper side of the first conductive piece and the lower side of the flexible explosion-proof piece.
The embodiment of the utility model provides an among the explosion-proof valve alarm device above-mentioned one or more technical scheme have one of following technological effect at least: when the explosion-proof valve alarm device is used, the first conductive piece is mounted on the explosion-proof valve and is in insulated connection with the explosion-proof valve, one end of the first conductive elastic sheet is arranged above the first conductive piece, one end of the alarm branch circuit is electrically connected with the first conductive piece, the other end of the alarm branch circuit is electrically connected with the first conductive elastic sheet, a battery expands gas during detonation to enable the first conductive elastic sheet to be pressed down to be electrically connected with the first conductive piece, and the first conductive elastic sheet, the first conductive piece and the alarm branch circuit form a loop to trigger an alarm signal; the explosion-proof valve alarm device realizes the alarm before the expansion explosion caused by the over-charging of the battery through the cooperation of the first conductive piece, the first conductive elastic piece and the alarm branch circuit, and has the advantages of early warning before explosion prevention and avoiding the occurrence of safety accidents.
In order to achieve the purpose, the embodiment of the utility model provides a battery has explosion-proof valve alarm device.
The embodiment of the utility model provides an above-mentioned one or more technical scheme in the battery have one of following technological effect at least: the battery with the explosion-proof valve alarm device has the advantages that the explosion-proof valve alarm device has early warning before explosion prevention and safety accidents are avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is an explosion schematic diagram of an explosion-proof valve alarm device and a battery provided by the embodiment of the present invention.
Fig. 2 is a top view of the explosion-proof valve alarm device and the battery provided by the embodiment of the present invention.
Fig. 3 is a sectional view taken along line a-a shown in fig. 2.
Fig. 4 is a top view of the alarm device for the explosion-proof valve provided by the embodiment of the present invention.
Fig. 5 is a schematic structural view of an overcharge cut-off device provided by an embodiment of the present invention
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the embodiments of the present invention, and should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of description and simplification of the description of the embodiments of the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In one embodiment of the present invention, as shown in fig. 1 to 5, there is provided an explosion-proof valve alarm device 100, which is applied to a battery 200, the battery 200 has an explosion-proof valve 210, the explosion-proof valve alarm device 100 is provided on the explosion-proof valve 210, it comprises a first conductive member 110, a first conductive elastic sheet 120 and an alarm branch 130, the first conductive member 110 is located on the explosion-proof valve 210 and is connected to the explosion-proof valve in an insulating manner, one end of the first conductive elastic sheet 120 is located above the first conductive member 110, one end of the alarm branch 130 is electrically connected to the first conductive member 110, and the other end is electrically connected to the first conductive elastic piece 120, when the battery detonates, the gas expands to press the first conductive elastic piece 120 to be electrically connected to the first conductive member 110, the first conductive elastic piece 120, the first conductive piece 110 and the alarm branch 130 form a loop triggering alarm signal.
When the explosion-proof valve alarm device 100 is used, the first conductive piece 110 is mounted on the explosion-proof valve 210 and is in insulated connection with the explosion-proof valve 210, one end of the first conductive elastic piece 120 is arranged above the first conductive piece 110, one end of the alarm branch 130 is electrically connected with the first conductive piece 110, the other end of the alarm branch 130 is electrically connected with the first conductive elastic piece 120, a battery expands gas during detonation so that the first conductive elastic piece 120 is pressed down to be electrically connected with the first conductive piece 110, and the first conductive elastic piece 120, the first conductive piece 110 and the alarm branch 130 form a loop to trigger an alarm signal; the explosion-proof valve alarm device 100 realizes the alarm before the expansion explosion caused by the over-charging of the battery through the cooperation of the first conductive piece 110, the first conductive elastic piece 120 and the alarm branch circuit 130, and has the advantages of early warning before explosion prevention and avoiding the occurrence of safety accidents.
In another embodiment of the present invention, as shown in fig. 3, a flexible explosion-proof member 230 is further disposed on the explosion-proof valve 210, the first conductive elastic piece 120 corresponds to the lower portion of the flexible explosion-proof member 230, when the battery is to detonate, the flexible explosion-proof member 230 deforms downward to cause the first conductive elastic piece 120 to press down, the flexible explosion-proof member 230 plays a role of safety and explosion protection, and the flexible explosion-proof member 230 is preferably made of an aluminum plastic film or an aluminum foil.
In another embodiment of the present invention, as shown in fig. 3, the explosion-proof valve 210 has a first periphery 211, the flexible explosion-proof member 230 has a second outer edge 231 and a second periphery 232, the second periphery 232 is distributed along the periphery of the second outer edge 231 and is closely attached to the first periphery 211 from the outside, and the flexible explosion-proof member 230 tightly wraps the explosion-proof valve 210.
In another embodiment of the present invention, in order to facilitate the insulation connection between the first conductive member 110 and the explosion-proof valve 210, as shown in fig. 1, an insulating member 220 is further disposed on the explosion-proof valve 210, and the first conductive member 110 is located on the insulating member 220.
In another embodiment of the present invention, as shown in fig. 4, the explosion-proof valve 210 is further provided with a puncturing device 240, the puncturing device 240 includes one or more sharp corners 241 located on the explosion-proof valve 210, and the sharp corners 241 facilitate puncturing the flexible explosion-proof member 230 to release gas when the battery expands, so as to achieve safety and explosion protection.
In another embodiment of the present invention, as shown in fig. 3, a first sealing ring 250 is disposed on the explosion-proof valve 210, the first sealing ring 250 is sleeved on the periphery of the second periphery 232 from the outside, and the first sealing ring 250 makes the explosion-proof valve 210 and the flexible explosion-proof member 230 tightly fit.
In another embodiment of the present invention, as shown in fig. 3, the first sealing ring 250 is a sealing rubber ring, and the height of the first sealing ring 250 is greater than the height of the second periphery 232, so that the explosion-proof valve 210 and the edge of the flexible explosion-proof member 230 are all tightly wrapped.
In another embodiment of the present invention, as shown in fig. 5, the explosion-proof valve is further provided with an overcharge cut-off device 260, the overcharge cut-off device 260 includes a second conductive piece 261, a second conductive piece 262 and a charge power supply branch 263, the second conductive piece 262 is located on the explosion-proof valve 210 and is connected with the explosion-proof valve in an insulated manner, one end of the second conductive piece 262 is electrically connected with the first conductive piece 120 and the other end is electrically connected with the second conductive piece 261, one end of the charge power supply branch 263 is electrically connected with the first conductive piece 120 and the other end is electrically connected with the second conductive piece 261, when a battery is to be detonated, gas expands to press down the first conductive piece 120 to disconnect the second conductive piece 262, the first conductive piece 120, the second conductive piece 261 and the charge power supply branch 263 cannot form an effective loop to make the battery no longer charge and supply power, the design can prevent the battery from being overcharged and continuing to charge and supply power when the battery is exploded.
In another embodiment of the present invention, as shown in fig. 1 and 3, the first conductive elastic piece 120 has a fixed end and a movable end, the fixed end is fixed on the explosion-proof valve 210, and the movable end corresponds to the upper side of the first conductive piece 110 and the lower side of the flexible explosion-proof piece 230, such a design enables the first conductive elastic piece 120 to be both fixed on the explosion-proof valve 210 and to be in contact with the first conductive piece to generate an alarm when the battery explodes.
In an embodiment of the present invention, as shown in fig. 1 to 5, a battery 200 having the explosion-proof valve alarm device 100 is provided. The battery 200 with the explosion-proof valve alarm device 100 has the advantages that the explosion-proof valve alarm device 100 has early warning before explosion prevention to avoid safety accidents.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An explosion-proof valve alarm device (100) is applied to a battery (200), the battery (200) is provided with an explosion-proof valve (210), the explosion-proof valve alarm device (100) is arranged on the explosion-proof valve (210), and the explosion-proof valve alarm device is characterized by comprising a first conductive piece (110), a first conductive elastic piece (120) and an alarm branch circuit (130), wherein the first conductive piece (110) is positioned on the explosion-proof valve (210) and is in insulation connection with the explosion-proof valve (210), one end of the first conductive elastic piece (120) is positioned above the first conductive piece (110), one end of the alarm branch circuit (130) is electrically connected with the first conductive piece (110) while the other end is electrically connected with the first conductive elastic piece (120), when the battery is detonated, gas expands to press the first conductive elastic piece (120) to be electrically connected with the first conductive elastic piece (110), and the first conductive elastic piece (120) and the alarm branch circuit (130), The first conductive member (110) and the alarm branch (130) form a loop to trigger an alarm signal.
2. The explosion-proof valve alarm device (100) of claim 1, wherein the explosion-proof valve (210) is further provided with a flexible explosion-proof piece (230), the first conductive elastic piece (120) corresponds to the lower part of the flexible explosion-proof piece (230), and when the battery is detonated, gas expansion causes the flexible explosion-proof piece (230) to deform downwards so as to cause the first conductive elastic piece (120) to press downwards.
3. The explosion proof valve alarm device (100) of claim 2 wherein the explosion proof valve (210) has a first peripheral edge (211), the flexible explosion proof member (230) has a second peripheral edge (231) and a second peripheral edge (232), the second peripheral edge (232) is distributed along the peripheral edge of the second peripheral edge (231) and is affixed to the first peripheral edge (211) from the outside.
4. The explosion proof valve alarm device (100) of claim 1 wherein the explosion proof valve (210) is further provided with an insulating member (220), and the first conductive member (110) is located on the insulating member (220).
5. The explosion-proof valve alarm device (100) of claim 2, wherein the explosion-proof valve (210) is further provided with a puncture device (240), and the puncture device (240) comprises more than one sharp corner (241) on the explosion-proof valve (210).
6. The explosion proof valve alarm device (100) of claim 3 wherein the explosion proof valve (210) is provided with a first sealing ring (250), the first sealing ring (250) is sleeved on the periphery of the second periphery (232) from the outside.
7. The explosion proof valve alarm device (100) of claim 6 wherein the first seal ring (250) is a sealing rubber ring, the height of the first seal ring (250) being greater than the height of the second peripheral edge (232).
8. The alarm device (100) of claim 1, wherein the explosion-proof valve further comprises an overcharge breaking device (260), the overcharge breaking device (260) comprises a second conductive piece (261), a second conductive elastic piece (262) and a charging power supply branch (263), the second conductive elastic piece (262) is located on the explosion-proof valve (210) and is in insulated connection with the explosion-proof valve, one end of the second conductive elastic piece (262) is electrically connected with the first conductive elastic piece (120) while the other end is electrically connected with the second conductive piece (261), one end of the charging power supply branch (263) is electrically connected with the first conductive elastic piece (120) while the other end is electrically connected with the second conductive piece (261), and when the battery detonates, gas expands to press down the first conductive elastic piece (120) to disconnect with the second conductive elastic piece (262), the first conductive elastic sheet (120), the second conductive piece (261) and the charging power supply branch circuit (263) can not form an effective loop, so that the battery can not be charged and powered any more.
9. The explosion-proof valve alarm device (100) of claim 2, wherein the first conductive resilient piece (120) has a fixed end and a movable end, the fixed end is fixed on the explosion-proof valve (210), and the movable end corresponds to the upper part of the first conductive piece (110) and the lower part of the flexible explosion-proof piece (230).
10. Battery (200), characterized by the fact that it has an explosion-proof valve alarm device (100) according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220351890.0U CN217279758U (en) | 2022-02-21 | 2022-02-21 | Explosion-proof valve alarm device and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220351890.0U CN217279758U (en) | 2022-02-21 | 2022-02-21 | Explosion-proof valve alarm device and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217279758U true CN217279758U (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220351890.0U Active CN217279758U (en) | 2022-02-21 | 2022-02-21 | Explosion-proof valve alarm device and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217279758U (en) |
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2022
- 2022-02-21 CN CN202220351890.0U patent/CN217279758U/en active Active
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