CN213584093U - Overcharge explosion-proof lithium cell - Google Patents
Overcharge explosion-proof lithium cell Download PDFInfo
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- CN213584093U CN213584093U CN202022681063.1U CN202022681063U CN213584093U CN 213584093 U CN213584093 U CN 213584093U CN 202022681063 U CN202022681063 U CN 202022681063U CN 213584093 U CN213584093 U CN 213584093U
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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 lithium cell technique and specifically relates to an overcharge explosion-proof lithium cell, which comprises a housin, the casing upper surface is equipped with pressure release mechanism, surface mounting has the singlechip on the casing inner chamber, surface mounting has temperature sensor on the casing inner chamber, be connected through the wire between singlechip and the temperature sensor, surface mounting has baroceptor on the casing inner chamber, be connected through the wire between singlechip and the baroceptor, the spout has all been seted up to the casing inner chamber upper and lower surface left and right sides, spout internally mounted has extinguishing device, power-off device is installed in casing upper surface left side. The utility model discloses can in time cut off the power when the inside atmospheric pressure of battery increases to automatic release inert gas when the battery will explode promptly, effectively reduce the harm that the explosion produced, improved the security of lithium cell.
Description
Technical Field
The utility model relates to a lithium cell technical field especially relates to an overcharge explosion-proof lithium cell.
Background
The lithium battery is a battery which uses lithium metal or lithium alloy as a positive/negative electrode material and uses a non-aqueous electrolyte solution, and the lithium metal has very high requirements on the environment due to the very active chemical characteristics, so the lithium battery is not applied for a long time, and the lithium battery becomes a mainstream along with the development of scientific technology.
The production technology of the existing lithium battery tends to be mature, but the existing lithium battery still has explosion hidden troubles, most of the lithium batteries are easy to explode when being overcharged and extruded, and most of the existing lithium batteries do not have power-off structures and have hidden troubles of battery explosion. Therefore, an overcharge explosion-proof lithium battery is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the explosion-proof lithium cell of overcharging that proposes makes it in time cut off the power when the inside atmospheric pressure of battery increases to automatic release inert gas when the battery will explode promptly, effectively reduce the harm that the explosion produced, improved the security of lithium cell.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an overcharge explosion-proof lithium cell, which comprises a housin, the casing upper surface is equipped with pressure release mechanism, surface mounting has the singlechip on the casing inner chamber, surface mounting has temperature sensor on the casing inner chamber, be connected through the wire between singlechip and the temperature sensor, surface mounting has baroceptor on the casing inner chamber, be connected through the wire between singlechip and the baroceptor, the spout has all been seted up to the casing inner chamber upper and lower surface left and right sides, spout internally mounted has extinguishing device, power failure device is installed in casing upper surface left side.
Preferably, pressure relief mechanism is including seting up the first venthole at the casing upper surface, the casing is the integral type design with first venthole, explosion-proof piece is installed to first venthole inboard, pressure relief mechanism is still including installing the U type apron at casing upper surface middle part, two second ventholes have been seted up to U type apron upper surface, the second venthole is the integral type design with U type apron.
Preferably, extinguishing device is including installing the slider inside the spout, first spring is installed to slider one side, the one end that the slider was kept away from to first spring is installed in the inside one side of spout, with one side two be connected with the motion board between the slider, two connecting rods are installed to motion board one side, the one end that the motion board was kept away from to the connecting rod is installed circular baffle, circular baffle is close to one side of motion board and is installed annular sealing pad, extinguishing device is still including installing the gas tank in the casing inner chamber left and right sides, two air vents have been seted up to gas tank one side, the connecting rod is located inside the air vent, gas tank inside packing has inert gas.
Preferably, the shaft section of the annular sealing gasket is circular, and the annular sealing gasket is made of rubber.
Preferably, the power-off device comprises a fixed block arranged on the left side of the upper surface of the shell, a groove is formed in the left side of the fixed block, a charging interface is arranged in the groove, a first mounting groove is formed in the fixed block, a first electrode plate is movably arranged in the first mounting groove, the charging interface is connected with the first electrode plate through a wire, a second spring is arranged on the left side of the first electrode plate, one end, away from the first electrode plate, of the second spring is arranged on the left side of the first mounting groove, a second electrode plate is movably arranged in the first mounting groove, a third spring is arranged on the right side of the second electrode plate, one end, away from the second electrode plate, of the third spring is arranged on the right side of the first mounting groove, chutes are formed in the upper surfaces of the first electrode plate and the second electrode plate, a second mounting groove is, the utility model discloses a support contact block, including installation piece, insulating rod, fixed block, motor, threaded rod, fixed block, second mounting groove internally mounted has the dead lever, the inside activity of installation piece is run through and is installed the insulating rod, the insulating rod lower extreme is located the chute inboard, the motor is installed in the fixed block left side, the motor passes through to be connected between wire and the singlechip, the threaded rod is installed to the motor output, the threaded rod activity runs through inside fixed block to second mounting groove, threaded rod outside screw thread runs through and installs the contact block, second mounting.
Preferably, the axial section of the collision block is trapezoidal.
The utility model provides an overcharge explosion-proof lithium cell, beneficial effect is in: when the utility model works, the temperature sensor is used for detecting the temperature of the inner cavity of the shell, the data is transmitted to the singlechip, the air pressure sensor converts the air pressure of the inner cavity of the shell into a voltage signal, the voltage signal is transmitted to the singlechip, when the air pressure or the temperature of the inner cavity of the shell is too high, the singlechip can firstly open the switch of the motor to drive the threaded rod to rotate and drive the touch block to move rightwards, the touch block drives the insulating rod to move downwards through the touch insulating rod to be inserted between the first electrode plate and the second electrode plate, the first electrode plate is separated from the second electrode plate at the moment, so that the lithium battery is powered off, the overcharge of the lithium battery can be prevented, the explosion risk is reduced, if the air pressure is continuously increased at the moment, the explosion-proof sheet is opened by extruding the explosion-proof sheet, the gas inside is dispersed through the second vent hole through the first vent hole, the safety of lithium cell has further been protected, the security performance of lithium cell has been improved, if the battery still explodes because of special reason, the impact force of production drives the connecting rod through the extrusion motion board and moves to one side for the annular sealing gasket is no longer laminated gas incasement side surface, makes the inside inert gas of gas case release from the air vent, reduces the harm that the explosion brought as far as possible, has further improved the security performance of lithium cell.
Drawings
Fig. 1 is a schematic view of a front view cross-sectional structure of an overcharge explosion-proof lithium battery provided by the present invention;
fig. 2 is a schematic side view of a circular baffle plate of an overcharge explosion-proof lithium battery provided by the present invention;
fig. 3 is a schematic structural view of a connection mode among the overcharge explosion-proof lithium battery single chip microcomputer, the temperature sensor, the air pressure sensor and the motor provided by the utility model;
fig. 4 is a schematic structural view of an overcharge explosion-proof lithium battery a provided by the present invention;
fig. 5 is a schematic structural view of an overcharge explosion-proof lithium battery B according to the present invention.
In the figure: casing 1, first venthole 2, explosion-proof piece 3, U type apron 4, second venthole 5, singlechip 6, temperature sensor 7, baroceptor 8, spout 9, slider 10, first spring 11, motion plate 12, connecting rod 13, circular baffle 14, annular seal 15, gas tank 16, air vent 17, fixed block 18, recess 19, charge interface 20, first mounting groove 21, first electrode piece 22, second spring 23, second electrode piece 24, third spring 25, chute 26, installation piece 27, insulator spindle 28, second mounting groove 29, motor 30, threaded rod 31, conflict piece 32, dead lever 33.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-5, an overcharge explosion-proof lithium battery, including casing 1, casing 1 upper surface is equipped with pressure relief mechanism, pressure relief mechanism is including offering the first venthole 2 at casing 1 upper surface, casing 1 is the integral type design with first venthole 2, explosion-proof piece 3 is installed to 2 inboard of first venthole, pressure relief mechanism is still including installing U type apron 4 at casing 1 upper surface middle part, two second ventholes 5 have been seted up to U type apron 4 upper surface, second venthole 5 is the integral type design with U type apron 4, when casing 1 inside atmospheric pressure was too high, explosion-proof piece 3 is opened, prevent the expansion explosion of lithium battery, lithium battery safety performance has been guaranteed.
The upper surface of the inner cavity of the shell 1 is provided with the singlechip 6, the singlechip 6 can adopt an AT89C51 singlechip, the upper surface of the inner cavity of the shell 1 is provided with the temperature sensor 7, the temperature sensor 7 can adopt a DS18B20, the singlechip 6 is connected with the temperature sensor 7 through a lead, the upper surface of the inner cavity of the shell 1 is provided with the air pressure sensor 8, the air pressure sensor 8 can adopt an MPX4115A, the singlechip 6 is connected with the air pressure sensor 8 through a lead, the left side and the right side of the upper surface and the lower surface of the inner cavity of the shell 1 are both provided with the sliding grooves 9, the inside of the sliding groove 9 is provided with the fire extinguishing device, the fire extinguishing device comprises the sliding block 10 arranged inside the sliding groove 9, one side of the sliding block 10 is provided with the first spring 11, one end of the first spring 11 far, connecting rod 13 is kept away from the one end of moving plate 12 and is installed circular baffle 14, and circular baffle 14 is close to one side of moving plate 12 and installs annular sealing pad 15, and annular sealing pad 15 axle cross-section is ring shape, and annular sealing pad 15 is made for rubber, seals gas tank 17, prevents that inert gas from effluvizing.
The extinguishing device is still including installing the gas tank 16 in the 1 inner chamber left and right sides of casing, and two air vents 17 have been seted up to gas tank 16 one side, and connecting rod 13 is located inside air vent 17, and gas tank 16 is inside to be filled has inert gas, can release inert gas in the twinkling of an eye when the lithium cell explodes, reduces the harm that the explosion caused.
The left side of the upper surface of the shell 1 is provided with a power-off device, the power-off device comprises a fixed block 18 arranged on the left side of the upper surface of the shell 1, the left side of the fixed block 18 is provided with a groove 19, a charging interface 20 is arranged in the groove 19, a first mounting groove 21 is arranged in the fixed block 18, a first electrode plate 22 is movably mounted in the first mounting groove 21, the charging interface 20 is connected with the first electrode plate 22 through a lead, the left side of the first electrode plate 22 is provided with a second spring 23, one end, far away from the first electrode plate 22, of the second spring 23 is mounted on the left side of the first mounting groove 21, a second electrode plate 24 is movably mounted in the first mounting groove 21, the right side of the second electrode plate 24 is provided with a third spring 25, one end, far away from the second electrode plate 24, of the third spring 25 is mounted on the right side, the right side of the second mounting groove 29 is provided with a mounting block 27, the inside of the mounting block 27 is movably provided with an insulating rod 28 in a penetrating way, the lower end of the insulating rod 28 is positioned at the inner side of the chute 26, the left side of the fixed block 18 is provided with a motor 30, the motor 30 is connected with the singlechip 6 through a wire, the output end of the motor 30 is provided with a threaded rod 31, the threaded rod 31 movably penetrates through the fixed block 18 to the inside of the second mounting groove 29, the outer side of the threaded rod 31 is provided with a touch block 32 in a threaded way, the inside of the second mounting groove 29 is provided with a fixed rod 33, the fixed rod 33 movably penetrates through the touch block 32, the axial section of the touch block 32 is trapezoidal, when the air pressure in the inner cavity of the shell 1 is too high or the temperature is too high, the singlechip 6 can first turn on a switch of the motor 30 to drive the threaded rod 31 to rotate and drive the touch, first electrode slice 22 and second electrode slice 24 separation this moment for the lithium cell outage prevents that the lithium cell from overcharging and leading to the explosion, has better protectiveness to the lithium cell.
The working principle is as follows: when the utility model works, the temperature sensor 7 is used for detecting the temperature of the inner cavity of the shell 1, transmitting data to the singlechip 6, the air pressure sensor 8 converts the air pressure of the inner cavity of the shell 1 into a voltage signal, transmitting the voltage signal to the singlechip 6, when the air pressure or the temperature of the inner cavity of the shell 1 is too high, the singlechip 6 will first turn on the switch of the motor 30 to drive the threaded rod 31 to rotate and drive the touch block 32 to move rightwards, at the moment, the touch block 32 drives the insulating rod 28 to move downwards through abutting against the insulating rod 28, so that the touch block is inserted between the first electrode plate 22 and the second electrode plate 24, at the moment, the first electrode plate 22 is separated from the second electrode plate 24, so that the lithium battery is powered off, at the moment, if the air pressure continues to rise, the explosion-proof plate 3 is opened by extruding the explosion-proof plate 3, at the moment, the gas inside is scattered out through the, the generated impact force drives the connecting rod 13 to move to one side by pressing the moving plate 12, so that the annular seal gasket 15 is no longer attached to the inner side surface of the gas tank 16, and the inert gas inside the gas tank 16 is released from the vent hole 17.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an overcharge explosion-proof lithium cell, includes casing (1), its characterized in that, casing (1) upper surface is equipped with pressure release mechanism, casing (1) inner chamber upper surface mounting has singlechip (6), casing (1) inner chamber upper surface mounting has temperature sensor (7), be connected through the wire between singlechip (6) and temperature sensor (7), casing (1) inner chamber upper surface mounting has baroceptor (8), be connected through the wire between singlechip (6) and baroceptor (8), spout (9) have all been seted up to the casing (1) inner chamber upper and lower surface left and right sides, spout (9) internally mounted has extinguishing device, power failure device is installed on casing (1) upper surface left side.
2. The overcharge explosion-proof lithium battery of claim 1, wherein the pressure relief mechanism comprises a first air outlet hole (2) formed in an upper surface of the casing (1), the casing (1) and the first air outlet hole (2) are designed in an integrated manner, the explosion-proof sheet (3) is mounted inside the first air outlet hole (2), the pressure relief mechanism further comprises a U-shaped cover plate (4) mounted in the middle of the upper surface of the casing (1), two second air outlet holes (5) are formed in the upper surface of the U-shaped cover plate (4), and the second air outlet holes (5) and the U-shaped cover plate (4) are designed in an integrated manner.
3. The overcharge explosion-proof lithium battery of claim 1, wherein the fire extinguishing apparatus comprises a slider (10) installed inside a sliding chute (9), a first spring (11) is installed at one side of the slider (10), one end of the first spring (11) far away from the slider (10) is installed at one side inside the sliding chute (9), a moving plate (12) is connected between the two sliders (10) at the same side, two connecting rods (13) are installed at one side of the moving plate (12), a circular baffle (14) is installed at one end of the connecting rod (13) far away from the moving plate (12), an annular sealing gasket (15) is installed at one side of the circular baffle (14) close to the moving plate (12), the fire extinguishing apparatus further comprises gas boxes (16) installed at the left side and the right side of an inner cavity of the housing (1), and two vent holes (17) are opened at one side of the gas boxes (16), the connecting rod (13) is positioned inside the vent hole (17), and the inside of the gas box (16) is filled with inert gas.
4. The overcharge explosion-proof lithium battery of claim 3, wherein the axial section of the annular sealing gasket (15) is circular ring-shaped, and the annular sealing gasket (15) is made of rubber.
5. The overcharge explosion-proof lithium battery of claim 1, wherein the power-off device comprises a fixed block (18) installed on the left side of the upper surface of the case (1), a groove (19) is formed on the left side of the fixed block (18), a charging interface (20) is arranged inside the groove (19), a first mounting groove (21) is formed inside the fixed block (18), a first electrode plate (22) is movably installed inside the first mounting groove (21), the charging interface (20) is connected with the first electrode plate (22) through a wire, a second spring (23) is installed on the left side of the first electrode plate (22), one end of the second spring (23) far away from the first electrode plate (22) is installed on the left side of the first mounting groove (21), a second electrode plate (24) is movably installed inside the first mounting groove (21), and a third spring (25) is installed on the right side of the second electrode plate (24), the one end that second electrode piece (24) was kept away from in third spring (25) is installed on first mounting groove (21) right side, chute (26) have all been seted up with second electrode piece (24) upper surface in first electrode piece (22), second mounting groove (29) have been seted up to fixed block (18) inside, installation piece (27) are installed on second mounting groove (29) right side, installation piece (27) inside activity is run through and is installed insulator spindle (28), insulator spindle (28) lower extreme is located chute (26) inboard, motor (30) are installed in fixed block (18) left side, motor (30) are connected through between wire and singlechip (6), threaded rod (31) are installed to motor (30) output, threaded rod (31) activity is run through fixed block (18) to second mounting groove (29) inside, threaded rod (31) outside screw thread is run through and is installed and is supported touch block (32), a fixing rod (33) is mounted inside the second mounting groove (29), and the fixing rod (33) penetrates through the contact block (32) movably.
6. The overcharge explosion-proof lithium battery of claim 5, wherein the axial cross section of the contact block (32) is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022681063.1U CN213584093U (en) | 2020-11-19 | 2020-11-19 | Overcharge explosion-proof lithium cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022681063.1U CN213584093U (en) | 2020-11-19 | 2020-11-19 | Overcharge explosion-proof lithium cell |
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| CN213584093U true CN213584093U (en) | 2021-06-29 |
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| CN202022681063.1U Active CN213584093U (en) | 2020-11-19 | 2020-11-19 | Overcharge explosion-proof lithium cell |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725536A (en) * | 2021-07-09 | 2021-11-30 | 广东嘉尚新能源科技有限公司 | Explosion-proof soft-package lithium battery cell structure and explosion-proof method |
| CN114824688A (en) * | 2022-06-27 | 2022-07-29 | 深圳市昂佳科技有限公司 | Lithium ion battery and module thereof |
| CN115000605A (en) * | 2022-06-21 | 2022-09-02 | 库尔兹电子科技(南通)有限公司 | Lithium battery with intelligent charging protection structure |
| CN115117527A (en) * | 2022-06-06 | 2022-09-27 | 宜兴市泰宇汽车零部件有限公司 | Compound EPP battery apron with fire-retardant dampproofing effect ventilates |
| CN115149163A (en) * | 2022-08-17 | 2022-10-04 | 傅美燕 | Safety type self-pressure-relief explosion-proof storage battery |
-
2020
- 2020-11-19 CN CN202022681063.1U patent/CN213584093U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725536A (en) * | 2021-07-09 | 2021-11-30 | 广东嘉尚新能源科技有限公司 | Explosion-proof soft-package lithium battery cell structure and explosion-proof method |
| CN113725536B (en) * | 2021-07-09 | 2023-02-28 | 广东嘉尚新能源科技有限公司 | Explosion-proof soft-package lithium battery cell structure and explosion-proof method |
| CN115117527A (en) * | 2022-06-06 | 2022-09-27 | 宜兴市泰宇汽车零部件有限公司 | Compound EPP battery apron with fire-retardant dampproofing effect ventilates |
| CN115117527B (en) * | 2022-06-06 | 2024-03-08 | 宜兴市泰宇汽车零部件有限公司 | Composite EPP battery cover plate with ventilation, flame retardance and moisture resistance effects |
| CN115000605A (en) * | 2022-06-21 | 2022-09-02 | 库尔兹电子科技(南通)有限公司 | Lithium battery with intelligent charging protection structure |
| CN115000605B (en) * | 2022-06-21 | 2023-11-24 | 库尔兹电子科技(南通)有限公司 | Lithium battery with intelligent charging protection structure |
| CN114824688A (en) * | 2022-06-27 | 2022-07-29 | 深圳市昂佳科技有限公司 | Lithium ion battery and module thereof |
| CN114824688B (en) * | 2022-06-27 | 2022-09-09 | 深圳市昂佳科技有限公司 | Lithium ion battery and module thereof |
| CN115149163A (en) * | 2022-08-17 | 2022-10-04 | 傅美燕 | Safety type self-pressure-relief explosion-proof storage battery |
| CN115149163B (en) * | 2022-08-17 | 2023-08-15 | 新疆美特智能安全工程股份有限公司 | Safe type is from explosion-proof battery of pressure release |
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Effective date of registration: 20210930 Address after: 212200 No. 1, pilot Road, Yangzhong high tech Industrial Development Zone, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Air China smart energy Co.,Ltd. Address before: Room 328, building 1, 525 Xingguo Road, Donghu street, Yuhang District, Hangzhou City, Zhejiang Province 311100 Patentee before: Hangzhou Hansong Intelligent Technology Co.,Ltd. |