CN115020880A - Battery top cap and battery - Google Patents
Battery top cap and battery Download PDFInfo
- Publication number
- CN115020880A CN115020880A CN202210720057.3A CN202210720057A CN115020880A CN 115020880 A CN115020880 A CN 115020880A CN 202210720057 A CN202210720057 A CN 202210720057A CN 115020880 A CN115020880 A CN 115020880A
- Authority
- CN
- China
- Prior art keywords
- battery
- hole
- magnetic valve
- valve plate
- protective cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 26
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 11
- 229920001296 polysiloxane Polymers 0.000 claims 2
- 230000017525 heat dissipation Effects 0.000 description 14
- 239000007789 gas Substances 0.000 description 9
- 230000005389 magnetism Effects 0.000 description 7
- 238000004880 explosion Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- H01M50/358—External gas exhaust passages located on the battery cover or case
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a battery top cover and a battery, which are used for solving the technical problem that the existing battery top cover is lack of a function of opening an explosion-proof valve when an electrical appliance is in short circuit and is easy to cause safety risk. The top cover body is provided with an air leakage through hole; the explosion-proof valve component comprises a magnetic valve plate, an elastic piece and a protective cover; the protective cover is fixed on the top surface of the top cover body and covers the opening above the air leakage through hole, an air outlet hole communicated with the air leakage through hole is formed in the side wall of the protective cover, the magnetic valve plate is located in the air leakage through hole and prevents the air outlet hole from being communicated with the interior of the battery through the air leakage through hole, the first end of the elastic element is connected to the magnetic valve plate, and the second end of the elastic element is connected to the inner side wall of the protective cover; the electromagnetic attraction component is arranged on the protective cover, and the electromagnetic attraction component can attract the magnetic valve plate when the power is on so that the magnetic valve plate can move upwards to the upper part of the air outlet hole, and then the air outlet hole is communicated with the interior of the battery through the air leakage through hole.
Description
Technical Field
The invention relates to the technical field of battery structure design, in particular to a battery top cover and a battery.
Background
At present, most lithium ion batteries produce a small amount of gas in the using process. When the gas generation reaches a certain amount, the lithium ion battery has a danger of explosion. Therefore, the current lithium battery generally loses air through designing the explosion-proof valve on the top cover, and the lithium battery is prevented from exploding.
The explosion-proof valve of current battery top cap open generally by the gaseous decision of the inside production of battery, and in practical application, the battery generally with use electrical apparatus collocation use, when taking place the short circuit with electrical apparatus, current battery top cap does not possess the function of opening explosion-proof valve immediately, only receives when the battery with electrical apparatus short circuit influence, the inside a large amount of gases that produce of battery, thereby explosion-proof valve on the battery top cap just can receive atmospheric pressure effect to open and lose heart. Under the above circumstances, the danger of explosion is generated when a large amount of gas is generated in the battery, and the explosion-proof valve of the battery top cover is opened at the moment, so that the technical problem of safety risk is easily caused, and the life safety of a user is threatened to a certain extent.
Therefore, it is an important subject of research by those skilled in the art to find a battery top cap and a battery capable of solving the above-mentioned technical problems.
Disclosure of Invention
The embodiment of the invention discloses a battery top cover and a battery, and aims to solve the technical problem that the existing battery top cover is lack of a function of opening an explosion-proof valve when an electrical appliance is in short circuit, and safety risks are easily caused.
The embodiment of the invention provides a battery top cover, which comprises a top cover body, an explosion-proof valve assembly and an electromagnetic attraction assembly, wherein the top cover body is provided with a cover body;
the top cover body is provided with an air leakage through hole;
the explosion-proof valve component comprises a magnetic valve plate, an elastic piece and a protective cover;
the protective cover is fixed on the top surface of the top cover body and covers the opening above the air leakage through hole, an air outlet hole communicated with the air leakage through hole is formed in the side wall of the protective cover, the magnetic valve plate is located in the air leakage through hole and prevents the air outlet hole from being communicated with the interior of the battery through the air leakage through hole, the first end of the elastic piece is connected to the magnetic valve plate, and the second end of the elastic piece is connected to the inner side wall of the protective cover;
the electromagnetic attraction component is arranged on the protective cover, and the electromagnetic attraction component can attract the magnetic valve plate when the power is on so that the magnetic valve plate moves upwards to the upper part of the air outlet hole, and then the air outlet hole is communicated with the inside of the battery through the air leakage through hole.
Optionally, the electromagnetic attraction assembly comprises a coil and a silicon steel core;
the silicon steel core is fixed in the top surface of protection casing, just the coil twines in on the silicon steel core.
Optionally, the elastic element is in a natural state, and the magnetic valve plate is located below the air outlet or the magnetic valve plate covers the air outlet.
Optionally, the valve further comprises a support ring for supporting the magnetic valve plate, and the support ring and the air leakage through hole are arranged concentrically.
Optionally, the top of the protective cover is provided with a plurality of weak portions.
Optionally, the bottom surface of the magnetic valve plate is provided with a layer of silica gel pad, and the magnetic valve plate is attached to the top surface of the support ring through the silica gel pad.
Optionally, a plurality of heat dissipation blocks are arranged on the top surface of the top cover body, and the heat dissipation blocks are arranged at preset intervals;
the range of the preset distance is 0.1mm to 3 mm.
Optionally, the top surfaces of the heat dissipation block and the top cover body form a preset inclination angle with each other;
the range of the inclination angle is 30 ° to 150 °.
Optionally, the heat dissipation block and the top cover body are of an integrated structure.
The embodiment of the invention provides a battery, which comprises a battery shell and the battery top cover;
the battery top cover is arranged on the battery shell.
According to the technical scheme, the embodiment of the invention has the following advantages:
when the battery top cap in this embodiment is used, the electromagnetism attracts the subassembly and establishes ties with electrical apparatus, and when taking place the short circuit with electrical apparatus, the electric current is too big, and the electromagnetism attracts the subassembly to receive the electric current to influence and produce magnetic attraction to attract so that the magnetism valve block up moves to the top of venthole to magnetism valve block, and then makes the venthole communicate with each other through disappointing through-hole and battery inside. Through above-mentioned design, can be when taking place the short circuit with electrical apparatus, the magnetism valve block can be in time attracted and up removed for the venthole has done the preparation of disappointing through-hole and the inside intercommunication of battery through disappointing, prevents that the battery from appearing the condition of explosion, has improved the security of battery when using effectively, has ensured user's personal safety.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is an exploded view of a structure of a top cap for a battery according to an embodiment of the present invention;
fig. 2 is an exploded view of another perspective structure of a top cap for a battery according to an embodiment of the present invention;
illustration of the drawings: a top cover body 1; a venting through hole 101; a support ring 2; a magnetic valve plate 3; an elastic member 4; a protective cover 5; an air outlet 501; an electromagnetic attraction component 6; a silicon steel core 601; a coil 602; and a heat dissipation block 7.
Detailed Description
The embodiment of the invention discloses a battery top cover and a battery, and aims to solve the technical problem that the existing battery top cover is lack of a function of opening an explosion-proof valve when an electrical appliance is in short circuit, and safety risks are easily caused.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example one
Referring to fig. 1 to 2, a battery top cap provided in the present embodiment includes:
the explosion-proof valve assembly comprises a top cover body 1, an explosion-proof valve assembly and an electromagnetic attraction assembly 6;
the top cover body 1 is provided with an air leakage through hole 101;
the explosion-proof valve component comprises a magnetic valve plate 3, an elastic piece 4 and a protective cover 5;
the protective cover 5 is fixed on the top surface of the top cover body 1, the protective cover 5 covers the opening above the air leakage through hole 101, an air outlet 501 communicated with the air leakage through hole 101 is formed in the side wall of the protective cover 5, the magnetic valve plate 3 is located in the air leakage through hole 101 and prevents the air outlet 501 from being communicated with the interior of a battery through the air leakage through hole 101, the first end of the elastic piece 4 is connected to the magnetic valve plate 3, and the second end of the elastic piece 4 is connected to the inner side wall of the protective cover 5;
the electromagnetic attraction component 6 is arranged on the protective cover 5.
It should be noted that, the protection cover 5 in this embodiment has a certain longitudinal space inside, so when the electromagnetic attraction assembly 6 is powered on to attract the magnetic valve sheet 3, the magnetic valve sheet 3 can move upward.
The battery top cap in this embodiment is when using, and the electromagnetism attracts subassembly 6 and establishes ties with electrical apparatus, and when taking place the short circuit with electrical apparatus, the electric current is too big, and the electromagnetism attracts subassembly 6 to produce magnetic attraction by the current influence to attract so that magnetism valve block 3 up moves the top of venthole 501 to magnetism valve block 3, and then make venthole 501 communicate each other through losing heart through-hole 101 and battery inside. Through the design, can be when taking place the short circuit with electrical apparatus, magnetism valve block 3 can be immediately attracted and up remove for venthole 501 is through disappointing through-hole 101 and the inside intercommunication of battery, has done the preparation of disappointing, prevents that the condition of explosion from appearing in the battery, has improved the security of battery when using effectively, has ensured user's personal safety.
When the electromagnetic attraction component 6 is powered off, the magnetic valve plate 3 returns to the initial position under the driving of the elastic component 4 to prevent the air outlet 501 from communicating with the inside of the battery through the air escape through hole 101.
Further, the electromagnetic attraction assembly 6 in the present embodiment includes a coil 602 and a silicon steel core 601;
the silicon steel core 601 is fixed on the top surface of the protective cover 5, and the coil 602 is wound on the silicon steel core 601.
It should be noted that, when the electrical appliance is short-circuited, the coil 602 is energized, and the magnetic force generated by the coil 602 and the silicon steel core 601 attracts the magnetic gasket to move upward, so that the air outlet 501 is communicated with the inside of the battery through the air escape through hole 101, thereby preventing the battery from exploding.
Further, the elastic member in this embodiment is specifically a return spring, and when the elastic member 4 is in a natural state, the magnetic valve sheet 3 is located below the air outlet 501 or the magnetic valve sheet 3 blocks the air outlet 501.
Further, this embodiment still includes the support ring 2 that is used for supporting magnetic valve piece 3, support ring 2 with the setting of disappointing through-hole 101 concentric.
In addition, the support ring 2 may be of an integrally formed structure or a split structure with the cap body, and preferably, the support ring 2 is screwed to the air release through hole 101.
It should be noted that the support ring 2 in this embodiment is used to support the magnetic gasket, and the support ring 2 may be fixed to the air release through hole 101 in a threaded connection manner, which may facilitate an assembler to quickly mount and dismount the support ring 2. In addition, under the natural state of the elastic element, the magnetic valve plate 3 is pressed against the top surface of the support ring 2 under the action of the elastic element 4.
Further, the bottom surface of the magnetic valve plate 3 in this embodiment is provided with a layer of silica gel pad, the magnetic valve plate 3 passes through the silica gel pad is attached to the top surface of the support ring 2.
The silicone rubber gasket described above corresponds to a gasket, and the above-described design ensures airtightness between the support ring 2 and the magnetic gasket.
Further, the top of the protection cover 5 in this embodiment is provided with a plurality of weak portions. Specifically, the weak portion is a concave groove, and the concave groove is concave toward the inner direction of the protection cover 5.
Note that the weak portion in the present embodiment is mainly obtained by thinning at the top of the hood 5.
When the inside gas of battery begins to accumulate, the magnetism gasket can be by gaseous top that promotes venthole 501 to make venthole 501 through losing heart through-hole 101 and the inside intercommunication of battery, the inside gas of battery just can follow venthole 501 outflow, thereby accomplishes the process of disappointing.
When the gas in the battery is accumulated to a certain degree and the gas pressure is overlarge, the gas directly breaks the thin weak part, so that the air leakage is completed, and the explosion of the battery is prevented.
Furthermore, because the temperature rise of the battery is very large when the battery is charged quickly, the temperature rise is mainly concentrated on the top cover of the battery, and the heat dissipation function of the top cover of the battery is very important.
Therefore, the top surface of the top cover body 1 in this embodiment is provided with a plurality of heat dissipation blocks 7, and the plurality of heat dissipation blocks 7 are arranged at preset intervals;
the range of the preset distance is 0.1mm to 3 mm.
It should be noted that through the design, the heat dissipation performance of the battery top cover can be effectively improved, and potential safety hazards caused by excessive temperature rise of the battery are avoided.
Further, the heat dissipation block 7 and the top surface of the top cover body 1 in this embodiment form a preset inclination angle with each other;
the range of the inclination angle is 30 ° to 150 °.
Further, the width of the heat dissipation block 7 in the present embodiment is 0.3 to 1.2 times the width of the top cover body 1;
the thickness range of the heat dissipation block 7 in this embodiment is 0.1mm to 3 mm;
the top cover body 1 in this embodiment is further provided with a pole, and the height of the heat dissipation block 7 in this embodiment is 0.2 times to 3 times of the height of the pole on the top cover body 1.
Further, the heat dissipation block 7 and the top cover body 1 in this embodiment are of an integrated structure.
Specifically, in order to make the heat conducting block have better heat conductivity, the heat dissipating block 7 and the top cover body 1 in the embodiment are machined by using the same metal. The designer can select the metal with proper heat conductivity to process according to the actual heat conduction requirement.
Example two
Referring to fig. 1 to fig. 2, a battery provided in the present embodiment includes a battery case and a battery top cover according to the first embodiment;
the battery top cover is arranged on the battery shell.
It should be noted that, when the battery in this embodiment supplies power to electrical equipment, the electromagnetic attraction component 6 is connected in series with electrical equipment, when short circuit occurs to electrical equipment, the current is too large, the electromagnetic attraction component 6 is influenced by the current to generate magnetic attraction, so as to attract the magnetic valve plate 3 to enable the magnetic valve plate 3 to move upwards to the top of the air outlet 501, and further enable the air outlet 501 to be communicated with the inside of the battery through the air leakage through hole 101. Through above-mentioned design, can be when taking place the short circuit with electrical apparatus, magnetic valve block 3 can be immediately attracted upward the removal for venthole 501 has done the preparation of disappointing through-hole 101 and the inside intercommunication of battery through disappointing, prevents that the battery from appearing the condition of explosion, has improved the security of battery when using effectively, has ensured user's personal safety.
While the battery top cover and the battery provided by the present invention have been described in detail, those skilled in the art will appreciate that the present invention is not limited to the above embodiments, and that the present invention is not limited to the above embodiments.
Claims (10)
1. A battery top cover is characterized by comprising a top cover body, an explosion-proof valve component and an electromagnetic attraction component;
the top cover body is provided with an air leakage through hole;
the explosion-proof valve assembly comprises a magnetic valve plate, an elastic piece and a protective cover;
the protective cover is fixed on the top surface of the top cover body and covers the opening above the air leakage through hole, an air outlet hole communicated with the air leakage through hole is formed in the side wall of the protective cover, the magnetic valve plate is located in the air leakage through hole and prevents the air outlet hole from being communicated with the interior of the battery through the air leakage through hole, the first end of the elastic piece is connected to the magnetic valve plate, and the second end of the elastic piece is connected to the inner side wall of the protective cover;
the electromagnetic attraction component is arranged on the protective cover, and the electromagnetic attraction component can attract the magnetic valve plate when the power is on so that the magnetic valve plate moves upwards to the upper part of the air outlet hole, and then the air outlet hole is communicated with the inside of the battery through the air leakage through hole.
2. The battery top cap of claim 1, wherein the electromagnetic attraction component comprises a coil and a silicon steel core;
the silicon steel core is fixed on the top surface of the protective cover, and the coil is wound on the silicon steel core.
3. The battery top cover according to claim 1, wherein the elastic member is in a natural state, and the magnetic valve sheet is located below the air outlet or covers the air outlet.
4. The battery top cover according to claim 1, further comprising a support ring for supporting the magnetic valve sheet, wherein the support ring is concentric with the air release through hole.
5. The battery top cap of claim 1, wherein the top portion of the protective cover defines a plurality of weakened portions.
6. The battery top cover according to claim 4, wherein a layer of silicone gasket is arranged on the bottom surface of the magnetic valve plate, and the magnetic valve plate is attached to the top surface of the support ring through the silicone gasket.
7. The battery top cap of claim 1, wherein a plurality of heat dissipating blocks are disposed on the top surface of the top cap body, the heat dissipating blocks being disposed at predetermined distances apart;
the range of the preset distance is 0.1mm to 3 mm.
8. The battery top cap of claim 7, wherein the heat slug and the top surface of the top cap body are at a predetermined angle of inclination to each other;
the range of the inclination angle is 30 ° to 150 °.
9. The battery top cap of claim 7, wherein the heat slug is a unitary structure with the top cap body.
10. A battery comprising a battery case and the battery top cover of any one of claims 1 to 9;
the battery top cover is arranged on the battery shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210720057.3A CN115020880A (en) | 2022-06-23 | 2022-06-23 | Battery top cap and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210720057.3A CN115020880A (en) | 2022-06-23 | 2022-06-23 | Battery top cap and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115020880A true CN115020880A (en) | 2022-09-06 |
Family
ID=83077217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210720057.3A Pending CN115020880A (en) | 2022-06-23 | 2022-06-23 | Battery top cap and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115020880A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09199104A (en) * | 1996-01-19 | 1997-07-31 | Matsushita Electric Ind Co Ltd | Explosion-proof sealing plate for sealed battery |
| JPH11265699A (en) * | 1998-03-18 | 1999-09-28 | Asahi Chem Ind Co Ltd | Thin battery |
| CN206401377U (en) * | 2016-12-28 | 2017-08-11 | 靖江市东达铝业有限公司 | A kind of electrokinetic cell top cover board component |
| CN108565363A (en) * | 2018-06-22 | 2018-09-21 | 深圳市比克动力电池有限公司 | A kind of secondary cell head cover and secondary cell |
| CN209892807U (en) * | 2019-03-13 | 2020-01-03 | 潍柴动力股份有限公司 | Explosion-proof valve of gas machine |
| CN209908697U (en) * | 2019-01-31 | 2020-01-07 | 深圳市捷美瑞科技有限公司 | Inflator pump and sphygmomanometer |
| CN210467972U (en) * | 2019-05-27 | 2020-05-05 | 深圳市比克动力电池有限公司 | Short-circuit device for battery over-temperature protection and battery with over-temperature protection function |
| CN111341970A (en) * | 2020-03-31 | 2020-06-26 | 湖北亿纬动力有限公司 | Battery explosion-proof structure, single battery and battery module |
| CN111490212A (en) * | 2020-04-21 | 2020-08-04 | 东莞蒲微防水透气膜材料有限公司 | Anti-blocking explosion-proof valve and preparation method thereof |
| CN212011109U (en) * | 2020-06-05 | 2020-11-24 | 龙牌汽车股份有限公司 | Battery explosion-proof cover plate with Z-shaped explosion-proof holes and power battery |
| CN113258205A (en) * | 2021-06-07 | 2021-08-13 | 深圳市雄韬电源科技股份有限公司 | Explosion-proof valve suitable for lithium cell |
| CN113300046A (en) * | 2021-05-21 | 2021-08-24 | 广州小鹏汽车科技有限公司 | Battery module explosion-proof structure and battery module explosion-proof control method |
| CN215680889U (en) * | 2021-06-03 | 2022-01-28 | 北京车和家信息技术有限公司 | Electronic explosion-proof valve, battery pack and vehicle |
-
2022
- 2022-06-23 CN CN202210720057.3A patent/CN115020880A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09199104A (en) * | 1996-01-19 | 1997-07-31 | Matsushita Electric Ind Co Ltd | Explosion-proof sealing plate for sealed battery |
| JPH11265699A (en) * | 1998-03-18 | 1999-09-28 | Asahi Chem Ind Co Ltd | Thin battery |
| CN206401377U (en) * | 2016-12-28 | 2017-08-11 | 靖江市东达铝业有限公司 | A kind of electrokinetic cell top cover board component |
| CN108565363A (en) * | 2018-06-22 | 2018-09-21 | 深圳市比克动力电池有限公司 | A kind of secondary cell head cover and secondary cell |
| CN209908697U (en) * | 2019-01-31 | 2020-01-07 | 深圳市捷美瑞科技有限公司 | Inflator pump and sphygmomanometer |
| CN209892807U (en) * | 2019-03-13 | 2020-01-03 | 潍柴动力股份有限公司 | Explosion-proof valve of gas machine |
| CN210467972U (en) * | 2019-05-27 | 2020-05-05 | 深圳市比克动力电池有限公司 | Short-circuit device for battery over-temperature protection and battery with over-temperature protection function |
| CN111341970A (en) * | 2020-03-31 | 2020-06-26 | 湖北亿纬动力有限公司 | Battery explosion-proof structure, single battery and battery module |
| CN111490212A (en) * | 2020-04-21 | 2020-08-04 | 东莞蒲微防水透气膜材料有限公司 | Anti-blocking explosion-proof valve and preparation method thereof |
| CN212011109U (en) * | 2020-06-05 | 2020-11-24 | 龙牌汽车股份有限公司 | Battery explosion-proof cover plate with Z-shaped explosion-proof holes and power battery |
| CN113300046A (en) * | 2021-05-21 | 2021-08-24 | 广州小鹏汽车科技有限公司 | Battery module explosion-proof structure and battery module explosion-proof control method |
| CN215680889U (en) * | 2021-06-03 | 2022-01-28 | 北京车和家信息技术有限公司 | Electronic explosion-proof valve, battery pack and vehicle |
| CN113258205A (en) * | 2021-06-07 | 2021-08-13 | 深圳市雄韬电源科技股份有限公司 | Explosion-proof valve suitable for lithium cell |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Applicant after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Address before: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Applicant before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |