CN111181213A - Lithium battery charging explosion-proof device - Google Patents
Lithium battery charging explosion-proof device Download PDFInfo
- Publication number
- CN111181213A CN111181213A CN202010057993.1A CN202010057993A CN111181213A CN 111181213 A CN111181213 A CN 111181213A CN 202010057993 A CN202010057993 A CN 202010057993A CN 111181213 A CN111181213 A CN 111181213A
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- Prior art keywords
- explosion
- proof
- lithium battery
- battery charging
- water
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the field of battery charging protection, in particular to a lithium battery charging explosion-proof device which comprises a charging device and an explosion-proof device, wherein a baffle is arranged in the explosion-proof device, the explosion-proof device is divided into a control cavity and a water storage cavity by the baffle, a water inlet is arranged in the middle of the baffle, a control element capable of controlling the opening of the water inlet is arranged at the water inlet, an explosion-proof assembly, a control part and a signal receiving device are arranged in the control cavity, and the volume of the water storage cavity is 1000cm3‑10m3(ii) a When in work: the signal receiving device transmits a signal to the control part, and the control part controls the control element to open the water inlet through the explosion-proof assembly, so that water in the water storage cavity flows into the charging device.
Description
Technical Field
The invention relates to the field of battery charging protection, in particular to a lithium battery charging explosion-proof device.
Background
In the present day of rapid development of science and technology, electric vehicles are no longer dream and are completely presented in the world, but due to the high running power of the electric vehicles, the requirements on the power and energy of power batteries are extremely strict. Because the battery can produce very big heat in the repeated charge-discharge in the operation process, so in order to solve the heat dissipation problem of battery all generally the battery case is many wind channels, many louvres structure, but such design can bring many not bright consequences, can very easily touch oxygen or other combustible gases in the air and cause more serious consequence because of the emergence of phenomenon such as short circuit under the extreme operational environment battery, and the battery is generally when not using at night when charging, and the user is all sleeping basically at this time, if the lithium cell leads to explosion or spontaneous combustion because of charging, user's life can receive the threat.
Chinese patent CN201520609585.7 discloses a patent with the patent name of lithium battery explosion-proof device, which has the technical key points that: the utility model provides a lithium battery explosion-proof equipment, includes shell and bottom, shell and bottom fixed connection, and the bottom lateral surface is formed with a plurality of annular grooves to the indent, is formed with a plurality of explosion-proof regions in the annular groove, is formed with a plurality of explosion-proof mouths in the explosion-proof region. Its advantage is when battery internal pressure increases, and the regional atress of explosion-proof increases, and outwards warp as the center with explosion-proof mouthful simultaneously, and when pressure reached the blasting pressure value of settlement, explosion-proof regional deformation reached the limit, and explosion-proof mouthful atress is the biggest simultaneously to outwards tearing in weak department, make pressure release from a plurality of explosion-proof mouths, thereby effectively prevent the battery explosion, but when the lithium cell because the overheated production naked light that charges, the device can not eliminate the intensity of a fire.
Chinese patent CN201620282372.2 discloses a patent with the name of a lithium battery pack flame-retardant explosion-proof device, which has the technical essential points that: a flame-retardant explosion-proof device for a lithium battery assembly comprises a machine shell and single batteries, wherein the machine shell comprises a battery bin and a buffer bin, a buffer air bag is arranged between the battery bin and the buffer bin, a plurality of single batteries which are mutually connected in series are arranged in the battery bin, insulating heat-conducting liquid or flame-retardant glue is filled in the battery bin, and the heat-conducting liquid or the flame-retardant glue wraps all the single batteries; inert gas and buffer asbestos are filled in the buffer bin; the middle part of the top end of the casing is provided with the cooling pressure relief valve, so that the fire hazard caused by explosion of the lithium battery and open fire is solved, the number of components formed is too large, the installation is complex, and the electric vehicle is mainly used for protecting a user when the electric vehicle runs and cannot protect the life safety of the user when the electric vehicle is charged at night.
Disclosure of Invention
The invention provides a lithium battery charging explosion-proof device aiming at the problems of potential explosion hazards and potential fire hazards which may occur when an electric vehicle charges a battery at home.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the utility model provides a lithium battery charging explosion-proof equipment, includes charging device and explosion-proof equipment, explosion-proof equipment's inside is provided with the baffle, and the baffle separates explosion-proof equipment into control chamber and water storage chamber, is provided with the water inlet in the middle of the baffle, and water inlet department is provided with the control element that can control the water inlet and open, and explosion-proof subassembly, control part and the signal receiving device that are provided with in the control chamber, and the volume in water storage chamber is 1000cm3-10m3(ii) a When in work: the signal receiving device transmits a signal to the control part, and the control part controls the control element to open the water inlet through the explosion-proof assembly, so that water in the water storage cavity flows into the charging device.
Preferably, the explosion-proof assembly further comprises a mounting plate in the control part, the explosion-proof assembly comprises a mounting frame and a spring and a firing pin which are arranged on the mounting frame, the mounting frame comprises a bottom plate, a first side plate and a second side plate, the bottom plate of the mounting frame is fixedly arranged on the mounting plate, a through hole is formed in the first side plate and the second side plate of the mounting frame, the firing pin is inserted into the through hole, the spring is sleeved on the firing pin, a fixing surface for fixing the spring is arranged on the firing pin, one end of the spring is abutted to the fixing surface, and the other end.
Preferably, the bottom plate of the mounting frame is fixedly arranged on the mounting plate through bolts.
Preferably, the end of the striker near the control element is provided as a tip and the control element is provided as a water barrier.
Preferably, the striker is provided with a coupling hole at an end of the control member remote from the striker, and the striker is fixedly coupled to the control portion through the coupling hole.
As preferred, signal receiver includes fixed block and smoke transducer, and the fixed block is the solid of low melting point, and the control part includes connecting wire and short circuit electric wire, the one end and the fixed block fixed connection of connecting wire, the other end and connecting hole fixed connection, the one end and the smoke transducer of short circuit electric wire are connected, and the other end winding is on the connecting wire, detects whether there is the trend of burning or explosion and blocks through the binary channels, further reaches safety protection's purpose.
Preferably, the explosion-proof device is provided with a water outlet which is arranged at one end close to the charging device, so that water in the water storage cavity can smoothly enter the charging device, and the purpose of blocking combustion or explosion can be achieved.
Preferably, the top of the charging device is provided with a first top cover, the first top cover is provided with a handle, the top of the water tank is provided with a second top cover, the second top cover is provided with a handle, the first top cover of the charging device can prevent animals such as mice from biting and breaking electric wires, and the second top cover on the water tank can prevent an external falling plug from blocking a water inlet or a water outlet, so that water cannot be discharged timely or cannot be discharged, and fire or explosion can be caused.
Preferably, the device is integrally arranged into an L shape, the explosion-proof device is vertically arranged, and the charging device is horizontally arranged
Preferably, the height of the water storage cavity is higher than that of the charging device, so that water in the water storage cavity can smoothly flow into the charging device.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:
the anti-explosion device adopts the double channels of the low-melting-point fixing block and the smoke sensor to sense whether the explosion trend or the combustion trend exists or not, when the explosion trend or the combustion trend exists, the anti-explosion component can control the control element to open the water inlet under the control of the control part, water flows downwards from the water storage cavity and enters the charging device through the water inlet and the water outlet to completely stop the explosion trend or the combustion trend.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a water tank and an explosion-proof tank in embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of an explosion-proof tank in embodiment 1 of the present invention.
Fig. 4 is a side view of fig. 3.
The names of the parts indicated by the numerical references in the drawings are as follows: wherein, 1-charging device, 11-first top cover, 12-handle, 2-explosion-proof device, 21-baffle, 211-water inlet, 212-control element, 22-control cavity, 221-explosion-proof assembly, 2211-mounting rack, 2212-spring, 2213-firing pin, 2214-bottom board, 2215-first side board, 2216-second side board, 2217-through hole, 2218-fixing surface, 2219-connecting hole, 222-control part, 2221-connecting wire, 2222-short circuit wire, 223-signal receiving device, 2231-fixing block, 2232-smoke sensor, 224-mounting board, 23-water storage cavity, 231-second top cover, 232-handle and 24-water outlet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 to 4, the explosion-proof device for lithium battery charging comprises a charging device 1 and an explosion-proof device 2, a baffle 21 is arranged inside the explosion-proof device 2, the explosion-proof device 2 is divided into a control chamber 22 and a water storage chamber 23 by the baffle 21, a water inlet 211 is arranged in the middle of the baffle 21, a control element 212 capable of controlling the opening of the water inlet 211 is arranged at the water inlet 211, an explosion-proof assembly 221, a control part 222 and a signal receiving device 223 are arranged in the control chamber 22, and the volume of the water storage chamber 23 is 1000cm3(ii) a When in work: the signal receiving device 222 transmits a signal to the control unit 222, and the control unit 222 controls the control element 212 to open the water inlet 211 through the explosion-proof assembly 221, so that the water in the water storage cavity 23 flows into the charging device 1.
The control portion 22 of this embodiment further includes a mounting plate 224 therein, the explosion-proof assembly 221 includes a mounting frame 2211, and a spring 2212 and a striker 2213 which are disposed on the mounting frame 2211, the mounting frame 2211 includes a bottom plate 2214, a first side plate 2215 and a second side plate 2216, the bottom plate 2214 of the mounting frame 2211 is fixedly disposed on the mounting plate 224, a through hole 2217 is disposed on the first side plate 2215 and the second side plate 2216 of the mounting frame 2211, the striker 2213 is inserted into the through hole 2217, the spring 2212 is sleeved on the striker 2213, a fixing surface 2218 for fixing the spring 2212 is disposed on the striker 2213, one end of the spring 2212 is abutted to the fixing surface 2218, and the other end of the spring is abutted to the first.
The bottom plate 2214 of the mounting frame 2211 is fixedly arranged on the mounting plate 224 through bolts, one end of the striker 2213 close to the control element 212 is arranged as a tip, the control element 212 is arranged as a water-stop film, one end of the control element 212 far away from the striker 2213 is provided with a connecting hole 2219, and the striker 2213 is fixedly connected with the control part 222 through the connecting hole 2219.
The signal receiving device 223 of this embodiment includes a fixed block 2231 and a smoke sensor 2232, the fixed block 2231 is a solid with a low melting point, the control portion 222 includes a connection line 2221 and a short-circuit wire 2222, one end of the connection line 2221 is fixedly connected to the fixed block 2231, the other end is fixedly connected to the connection hole 2219, one end of the short-circuit wire 2222 is connected to the smoke sensor 2232, the other end is wound around the connection line 2221, whether there is a trend of combustion or explosion is detected through two channels and the connection is blocked, and the purpose of safety protection is further achieved.
And the explosion-proof cavity 22 of the embodiment is provided with the water outlet 24, the water outlet 24 is arranged on one surface of the explosion-proof box 2 close to the charging device 1, and water falling into the explosion-proof box 2 from the water tank can flow into the charging device 1 through the water outlet 24, so that a battery with an explosion tendency or a combustion tendency is submerged, and the battery is prevented from exploding or combusting.
The top of the charging device 1 of this embodiment is provided with first top cap 11, be provided with handle 12 on the first top cap 11, the top of water storage chamber 23 is provided with second top cap 231, be provided with handle 232 on the second top cap 231, the first top cap 11 of charging device 1 can prevent animals such as mouse from biting the electric wire absolutely, second top cap 31 on the water tank can prevent that the outside plug that drops from plugging up water inlet 221 or delivery port 24, lead to causing out water untimely, or can't go out water, make the emergence of conflagration or assurance.
This embodiment the whole setting of device is the L type, and 2 vertical settings of explosion-proof equipment, charging device 1 level set up, and the height that highly is higher than charging device 1 of water storage chamber 23 controls chamber 22 and charging device 1 setting on same horizontal plane, guarantees to block in time when producing explosion trend or burning trend.
The specific use process of this embodiment is as follows: after the device is installed and the water in the water storage cavity 3 is filled, the battery is placed in the charging device 1, the electric wire extends out of the charging device 1 and is plugged into the socket to start charging, when the battery in the charging device 1 is charged and the ambient temperature does not rise due to normal temperature rise, the fixing block 2231 does not reach the melting point (i.e. the signal receiving device 23 does not receive a high temperature signal) and does not emit smoke, the whole device does not react, when the ambient temperature rises to the melting point of the fixing block 2231 due to abnormal temperature rise, the fixing block 2231 starts to melt (i.e. the signal receiving device 23 receives a high temperature signal), after the fixing block 2231 melts, the fixing block 2231 is not fixedly connected with the connecting wire 2221, the control of the explosion-proof component 221 is released, the spring 2212 pushes out the striker 2213 by the self elasticity, the striker 2213 opens the control element 212, the water in the water storage cavity 23 falls into the explosion-proof cavity 22 from the water inlet 221, and then enters the charging device 1 from the water outlet 24 of the explosion-proof cavity 22 to prevent the battery from exploding or burning; when the temperature of the battery does not rise abnormally but smoke is emitted inside the battery (i.e. when the battery has a burning trend), the smoke triggers the smoke sensor 2232 (i.e. the signal receiving device 23 receives a smoke signal), the smoke sensor 2232 short-circuits the short-circuit wire 2221, the short-circuit generates a large amount of heat, so that the temperature of the tungsten filament rises, the high-temperature tungsten filament fuses the connecting wire 2311, so that the control part 222 releases the control of the explosion-proof assembly 221, the connecting wire 2311 no longer tensions the spring 2212, the spring 2212 pushes out the firing pin 2213 by using the elasticity of the spring 2212, the firing pin 2213 opens the control element 212, water in the water storage cavity 23 falls into the explosion-proof cavity 22 from the water inlet 221, and then enters the charging device 1 from the water outlet 24 of the explosion-proof cavity.
Example 2
This embodiment is different from embodiment 1 in that: the signal receiving device 23 is internally provided with an integrated sensor integrated with a temperature sensor and a smoke sensor 2232, a temperature threshold is arranged in the signal receiving device, when the ambient temperature around the charging device 1 is higher than the threshold (namely, the signal receiving device 23 receives a high-temperature signal), the signal receiving device 23 releases the connecting line 2311, at this time, the explosion-proof assembly 221 is triggered, the connecting line 2311 no longer tensions the spring 2212, the spring 2212 pushes out the striker 2213 by using the elasticity of the spring 2212, the striker 2213 opens the control element 212, water in the water storage cavity 23 falls into the explosion-proof cavity 22 from the water inlet 221, and then enters the charging device 1 from the water outlet 24 of the explosion-proof cavity 22 to prevent the battery from exploding or burning, so as to solve the potential safety hazard.
Example 3
This embodiment is different from embodiment 1 in that: explosion-proof subassembly 221 sets up to the switch element, signal receiver 23 is connected with control element 212 electricity through explosion-proof subassembly 221, be provided with the integrated sensor that integrates temperature sensor and smoke sensor 2232 in the signal receiver 23, the high temperature threshold value is set for in the temperature sensor, control element 212 sets up to the solenoid valve, when the temperature that the environment was sensed to temperature sensor in charging device 1 surpassed high temperature threshold value or smoke sensor 2232 sensed the battery and sent smog, explosion-proof subassembly 221 all can be triggered, thereby trigger control element 212's solenoid valve, open the solenoid valve, make the water in the water storage chamber 23 fall into explosion-proof chamber 22 from water inlet 221, prevent battery explosion or burning in getting into charging device 1 from explosion-proof chamber 22's delivery port 24 again, solve the potential safety hazard.
Example 4
The improvement of the embodiment and the embodiment 1 is that: the utility model provides a lithium cell explosion-proof equipment that charges, including charging device 1 and explosion-proof equipment 2, the inside of explosion-proof equipment 2 is provided with baffle 21, baffle 21 separates explosion-proof equipment 2 into control chamber 22 and water storage chamber 23, be provided with water inlet 211 in the middle of baffle 21, water inlet 211 department is provided with the control element 212 that can control water inlet 211 and open, explosion-proof subassembly 221, control part 222 and signal receiving device 223 that are provided with in the control chamber 22, the volume in water storage chamber is 10m3(ii) a When in work: the signal receiving device 222 transmits a signal to the control unit 222, and the control unit 222 controls the control element 212 to open the water inlet 211 through the explosion-proof assembly 221, so that the water in the water storage cavity 23 flows into the charging device 1.
Example 5
This embodiment is different from embodiment 1 in that: an explosion-proof device for charging lithium battery comprisesCharging device 1 and explosion-proof device 2, the inside of explosion-proof device 2 is provided with baffle 21, baffle 21 separates explosion-proof device 2 into control chamber 22 and water storage chamber 23, is provided with water inlet 211 in the middle of baffle 21, and water inlet 211 department is provided with the control element 212 that can control water inlet 211 and open, and explosion-proof subassembly 221, control part 222 and signal receiving device 223 that are provided with in the control chamber 22, the volume in water storage chamber are 0.3m3(ii) a When in work: the signal receiving device 222 transmits a signal to the control unit 222, and the control unit 222 controls the control element 212 to open the water inlet 211 through the explosion-proof assembly 221, so that the water in the water storage cavity 23 flows into the charging device 1.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a lithium battery charging explosion-proof equipment, includes charging device (1) and explosion-proof equipment (2), its characterized in that: the explosion-proof device is characterized in that a baffle (21) is arranged in the explosion-proof device (2), the explosion-proof device (2) is divided into a control cavity (22) and a water storage cavity (23) by the baffle (21), a water inlet (211) is arranged in the middle of the baffle (21), a control element (212) capable of controlling the water inlet (211) to be opened is arranged at the position of the water inlet (211), an explosion-proof assembly (221), a control part (222) and a signal receiving device (223) are arranged in the control cavity (22), and the volume of the water storage cavity (23) is 1000cm3-10m3(ii) a When in work: the signal receiving device (222) transmits a signal to the control part (222), and the control part (222) controls the control element (212) to open the water inlet (211) through the explosion-proof assembly (221), so that water in the water storage cavity (23) flows into the charging device (1).
2. The explosion-proof device for lithium battery charging of claim 1, wherein: still include mounting panel (224) in control portion (22), explosion-proof subassembly (221) includes mounting bracket (2211) and spring (2212) and striker (2213) of setting on mounting bracket (2211), mounting bracket (2211) includes bottom plate (2214), first curb plate (2215) and second curb plate (2216), bottom plate (2214) of mounting bracket (2211) is fixed to be set up on mounting panel (224), through-hole (2217) have been seted up on first curb plate (2215) and second curb plate (2216) of mounting bracket (2211), striker (2213) is pegged graft in through-hole (2217), spring (2212) cover is established on striker (2213), be provided with fixed surface (2218) that are used for fixed spring (2212) on striker (2213), the one end of spring (2212) is contradicted with fixed surface (2218), the other end of spring is contradicted with first curb plate (2215).
3. The explosion-proof device for lithium battery charging of claim 2, wherein: the bottom plate (2214) of the mounting frame (2211) is fixedly arranged on the mounting plate (224) through bolts.
4. The explosion-proof device for lithium battery charging of claim 2, wherein: one end of the striker (2213) near the control element (212) is arranged as a tip, and the control element (212) is arranged as a water-stop film.
5. The explosion-proof device for lithium battery charging of claim 2, wherein: one end of the control element (212) far away from the firing pin (2213) is provided with a connecting hole (2219), and the firing pin (2213) is fixedly connected with the control part (222) through the connecting hole (2219).
6. The explosion-proof device for lithium battery charging of claim 5, wherein: the signal receiving device (223) comprises a fixing block (2231) and a smoke sensor (2232), the fixing block (2231) is a solid with a low melting point, the control portion (222) comprises a connecting wire (2221) and a short-circuit wire (2222), one end of the connecting wire (2221) is fixedly connected with the fixing block (2231), the other end of the connecting wire is fixedly connected with the connecting hole (2219), one end of the short-circuit wire (2222) is connected with the smoke sensor (2232), and the other end of the short-circuit wire is wound on the connecting wire (2221).
7. The explosion-proof device for lithium battery charging of claim 1, wherein: the explosion-proof cavity (22) is provided with a water outlet (24), and the water outlet (24) is arranged at one end close to the charging device (1).
8. The explosion-proof device for lithium battery charging of claim 1, wherein: the top of charging device (1) is provided with first top cap (11), is provided with handle (12) on first top cap (11), and the top of water storage chamber (23) is provided with second top cap (231), is provided with handle (232) on second top cap (231).
9. The explosion-proof device for lithium battery charging of claim 1, wherein: the device is integrally arranged to be L-shaped, the explosion-proof device (2) is vertically arranged, and the charging device (1) is horizontally arranged.
10. The explosion-proof device for lithium battery charging of claim 1, wherein: the height of the water storage cavity (23) is higher than that of the charging device (1), and the control cavity (22) and the charging device (1) are arranged on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010057993.1A CN111181213A (en) | 2020-01-19 | 2020-01-19 | Lithium battery charging explosion-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010057993.1A CN111181213A (en) | 2020-01-19 | 2020-01-19 | Lithium battery charging explosion-proof device |
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| Publication Number | Publication Date |
|---|---|
| CN111181213A true CN111181213A (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010057993.1A Pending CN111181213A (en) | 2020-01-19 | 2020-01-19 | Lithium battery charging explosion-proof device |
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| Country | Link |
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| CN (1) | CN111181213A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115531779A (en) * | 2022-11-30 | 2022-12-30 | 苏州睿锂物联科技有限公司 | Integrated battery pack with built-in explosion-proof emergency parts |
-
2020
- 2020-01-19 CN CN202010057993.1A patent/CN111181213A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115531779A (en) * | 2022-11-30 | 2022-12-30 | 苏州睿锂物联科技有限公司 | Integrated battery pack with built-in explosion-proof emergency parts |
| CN115531779B (en) * | 2022-11-30 | 2023-03-10 | 苏州睿锂物联科技有限公司 | Integrated battery pack with built-in explosion-proof emergency parts |
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Application publication date: 20200519 |
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