CN209016168U - A kind of explosion-proof lithium battery - Google Patents
A kind of explosion-proof lithium battery Download PDFInfo
- Publication number
- CN209016168U CN209016168U CN201820992460.0U CN201820992460U CN209016168U CN 209016168 U CN209016168 U CN 209016168U CN 201820992460 U CN201820992460 U CN 201820992460U CN 209016168 U CN209016168 U CN 209016168U
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- Prior art keywords
- lithium battery
- explosion
- proof
- pcb board
- sensor
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of explosion-proof lithium battery, including lithium battery (1), it is characterised in that further include shell (2), explosionproof hole (3), lithium battery state sensor module (4), semiconductor refrigerating module (5), screw (6), bracket (7), pcb board (8), explosion-proof tank (9), the fan (10), reticulated, open (13) of lithium battery.A kind of explosion-proof lithium battery of the application, when collecting the data of lithium battery casing (2) surface temperature and pressure beyond safe range by lithium battery state sensor module (4), explosionproof hole (3) are opened by pcb board (8) in time, release the pressure in gas release lithium battery casing (2), the switch (55) of semiconductor refrigerating module (5) is opened by pcb board (8), semiconductor refrigerating cools down to lithium battery casing (2), fan (10) operating simultaneously, hot-air is accelerated to be discharged from the aperture of explosion-proof tank, cooling pressure release in time in this way, evade the risk of lithium battery explosion.
Description
Technical field
The utility model relates to technical field of lithium batteries more particularly to a kind of explosion-proof lithium batteries.
Background technique
Lithium battery have it is light-weight, small in size, charging rate is fast, and the larger advantage of capacitance is widely used in various
In electric equipment products, including household electrical appliance and electric vehicle.
But cause battery operating current excessive due to the overcharging of lithium battery, over-discharge or internal short-circuit etc., to make electricity
The temperature in pond is excessively high, generates the gas of high temperature and pressure, keeps the pressure and temperature of inside battery all very high, when in battery pressure and
When temperature is more than the ability to bear of battery packages container, packing container is blown, the flammable and explosive substance outflow of the inside, to draw
The serious accident such as explosion, on fire is played, so, it is especially on battery on lithium battery and requires to be provided with special explosion-protection equipment,
Prevent battery explosion.
Part lithium battery uses explosion-protection equipment of the explosion-proof films/sheets as lithium battery at present, by adding pressure on rupture pressure disc
Trace enables lithium battery to burst in overload along impression.In contrast, the design structure is simply at low cost, but due to rupture pressure disc
Streaking, processing depth of cup are difficult to control, and reliability is unsatisfactory.
In the prior art, application No. is a kind of dynamic lithium battery safety anti-explosive cover board of " 201710360653.4 ", packets
The explosion-proof valve for offering the cover board substrate of explosionproof hole and being installed through in explosionproof hole is included, when inside battery air pressure is excessively high,
Explosion-proof rupture of diaphragm, gas enter in explosion-proof valve, wash diaphragm seal open and carry out pressure release；Application No. is " 201020282536.4 "
A kind of ball-type safety valve with power lithium batteries, including valve deck, valve body, spring, ball valve and sealing ring push away ball valve by air pressure
It is dynamic, the release of waste exhaust gases is carried out, to have the function that prevent explosion.
In above-mentioned two application documents, explosive-proof protector can be carried out to lithium battery very well, but it still has more
Apparent defect: 1, the use of explosion-proof diaphragm is disposable, when diaphragm is broken through by the high pressure gas of inside battery, in battery
Portion's although available air pressure release, but just need to carry out the replacement of rupture pressure disc, very troublesome and higher cost；2, using ball
Valve carries out exhaust gas pressure release, although can be used for multiple times, since ball valve can repeatedly rub with generation touching at cooperation, for a long time
Use ball valve itself can be caused to wear, when the degree of wear is excessively high, then will lead to air-tightness reduction, influence battery performance.
Utility model content
The problems such as structure is complicated to overcome explosion-proof equipment of lithium battery existing in the prior art to reuse, this is practical
It is novel to provide a kind of explosion-proof lithium battery.
A kind of explosion-proof lithium battery, including lithium battery further include the shell, explosionproof hole, lithium battery state sensor of lithium battery
Device, screw, bracket, pcb board, explosion-proof tank, fan, positive terminal, negative terminal, netted is opened semiconductor cooling device
Hole；The explosionproof hole, the lithium battery state sensor module, the semiconductor refrigerating module are arranged in the surface of shell,
The shell is fixed on the bracket by the screw, and the pcb board is fixed on the side of the bracket, and the bracket is solid
Be scheduled in the explosion-proof tank, form chamber among the bracket and the explosion-proof tank, be provided with the fan in chamber, it is described just
The outer surface top of the explosion-proof tank is arranged in pole binding post, negative terminal, is uniformly distributed reticulated, open on the explosion-proof tank.
In a preferred embodiment of the utility model, the lithium battery state sensor module includes pressure sensing
Device, temperature sensor and sensor communication module, the pressure sensor and the temperature sensor are embedded in shell side table
Face collects the data of lithium battery surface pressing and temperature；The sensor communication module passes through wireless network or wired
Network is connect with the pcb board, is transferred data on the pcb board.
In a preferred embodiment of the utility model, the explosionproof hole includes decompression cover and driving member, described explosion-proof
The top of the shell is arranged in hole, and the driving member is connect with the pcb board.
In a preferred embodiment of the utility model, the semiconductor cooling device includes contacting with the shell
Cold end insulating ceramic film, cold side metal piece flow guide bar, N-type semiconductor, P-type semiconductor, hot side metal piece flow guide bar, hot end insulation
The switch of potsherd and semiconductor cooling device, the semiconductor cooling device use the lithium battery interior powered by direct current,
Direct current anode connects the N-type semiconductor, and cathode connects the P-type semiconductor, and the switch is connect with the pcb board.
In a preferred embodiment of the utility model, the fan is arranged in the bracket and the explosion-proof tank
Between, it is fixed on the explosion-proof tank bottom inner surface, the fan is connect with the pcb board.
In a preferred embodiment of the utility model, the pcb board is arranged in the side face, uses the lithium
Inside battery power supply.
In a preferred embodiment of the utility model, the explosion-proof tank is welded using steel plate, and surface is uniformly opened
Hole, in netted.
In a preferred embodiment of the utility model, the positive terminal and negative terminal are plugged in described anti-
Quick-fried case top, is sequentially connected with the positive and negative electrode of the lithium battery interior.
It further include user terminal in a preferred embodiment of the utility model, the user terminal and PCB plate connect
It connects, user terminal includes desktop computer, tablet computer and smart phone.
In a preferred embodiment of the utility model, the lithium battery state sensor module further includes voltage sensor
Device, current sensor, electrical quantity sensor are connect by the sensor communication module with the pcb board.
Compared with prior art, the utility model has the beneficial effects that
1. the pressure, temperature, voltage, electric current, electricity of lithium battery can be collected in real time using lithium battery state sensor
Delta data；
2. controlling driving member using pcb board to switch decompression cover, it may be reused, automatization level is high；
3. being cooled down using semiconductor cooling device to lithium battery, structure is simple, easy for installation；
4. making heat be easier to distribute by the setting of reticulated, open on fan and explosion-proof tank；
5. the explosion-proof tank of steel plate welding is arranged, in the worst cases, explosion does not influence lithium battery external ring when occurring as far as possible
Border.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of one preferred embodiment of explosion-proof lithium battery of the utility model；
Fig. 2 is the structural representation of semiconductor cooling device in a kind of one preferred embodiment of explosion-proof lithium battery of the utility model
Figure；
Fig. 3 is a kind of flow chart of one preferred embodiment of explosion-proof lithium battery of the utility model；
In figure: 1- lithium battery；2- shell；3- explosionproof hole；31- decompression cover；32- driving member；4- lithium battery state sensor
Module；41- pressure sensor；42- temperature sensor；43- sensor communication module；44- voltage sensor；45- current sense
Device；46- electrical quantity sensor；5- semiconductor cooling device；511- cold end insulating ceramic film；The hot end 512- insulating ceramic film；521-
Cold side metal piece flow guide bar；522- hot side metal piece flow guide bar；53-N type semiconductor；54-P type semiconductor；55- switch；6- spiral shell
Nail；7- bracket；8-PCB plate；9 explosion-proof tanks；10- fan；11- positive terminal；12- negative terminal；On 13- explosion-proof tank
Reticulated, open；14- user terminal.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be further described in detail.It should be appreciated that this place is retouched
The specific embodiment stated only to explain the utility model, is not used to limit the utility model.
Fig. 1, a kind of one preferred embodiment of explosion-proof lithium battery of the utility model, including lithium battery 1 are please referred to, further includes lithium electricity
The shell 2 in pond, lithium battery state sensor module 4, semiconductor cooling device 5, screw 6, bracket 7, pcb board 8, is prevented explosionproof hole 3
Quick-fried case 9, fan 10, positive terminal 11, negative terminal 12, reticulated, open 13.
In the present embodiment, the explosionproof hole 3, the lithium battery state sensor module 4, the semiconductor cooling device
5 settings are fixed on the bracket 7 in 2 surface of shell, the shell 2 by the screw 6, and the pcb board 8 is fixed on
The side of the bracket 7, the bracket 7 are fixed in the explosion-proof tank 9, and the bracket 7 and the explosion-proof tank 9 form chamber,
The fan 10 is provided in chamber, the outer surface of the explosion-proof tank 9 is arranged in the positive terminal 11, negative terminal 12
Top is uniformly distributed reticulated, open 13 on the explosion-proof tank 9.
In the present embodiment, the lithium battery state sensor module 4 include pressure sensor 41, temperature sensor 42 and
Sensor communication module 43, the pressure sensor 41 and the temperature sensor 42 are embedded in 2 side surface of shell, acquire
To the data of lithium battery 1 surface pressing and temperature；The sensor communication module 43 is connected by wireless network and the pcb board 8
It connects, the data of pressure and temperature is transferred on the PCB plate 8.
In the present embodiment, the top of the shell 2, including decompression cover 31 and driving member 32 is arranged in the explosionproof hole 3,
The driving member 32 is connect with the pcb board 8, and the pcb board 8 turns on or off decompression cover by control driving member 32
31。
Fig. 2 is please referred to, in the present embodiment, the semiconductor cooling device 5 includes that the cold end that contacts with the shell 2 is exhausted
Edge potsherd 511, cold side metal piece flow guide bar 521, N-type semiconductor 53, P-type semiconductor 54, hot side metal piece flow guide bar 522,
The switch 55 of hot end insulating ceramic film 512 and semiconductor cooling device, the cold end insulating ceramic film 511 and the cold side metal
Piece flow guide bar 521 passes through spiral shell with the hot side metal piece flow guide bar 522 by screw connection, the hot end insulating ceramic film 512
Silk connection, the cold side metal piece flow guide bar 521 are sandwiched between the N-type semiconductor with the hot side metal piece flow guide bar 522
53 and the P type semiconductor 54, the N-type semiconductor 53 and the P-type semiconductor 54 be staggered.
Fig. 2 is please referred to, in the present embodiment, the semiconductor cooling device 5 is supplied using the 1 internal direct current electricity of lithium battery
Electricity, direct current anode connect the N-type semiconductor 53, and cathode connects the P-type semiconductor 54, the switch 55 and PCB
Plate 8 connects.
Further, in the present embodiment, the cold end insulating ceramic film 511 and the cold side metal piece flow guide bar 521
Between be coated with a thin layer of heat-conducting silicone grease.
In the present embodiment, the fan 10 is arranged in the chamber that the bracket 7 and the explosion-proof tank 9 are formed, fixed
In 9 bottom inner surface of explosion-proof tank, the fan 10 is connect with the pcb board 8.
In the present embodiment, the pcb board 8 is arranged in 7 side of bracket, uses 1 in-line power of lithium battery.
In the present embodiment, the explosion-proof tank 9 is welded using steel plate, surface uniform pore openings, in netted, is made internal
Gas and heat are easier to be discharged.
Further, a face of the top of the explosion-proof tank 9 can open, convenient to operate in explosion-proof tank 9.
In the present embodiment, the positive terminal 11 and negative terminal 12 are plugged in 9 top of explosion-proof tank, with institute
The positive and negative electrode inside lithium battery 1 is stated to be sequentially connected.
It in the present embodiment, further include user terminal 14, the user terminal 14 is connect with pcb board 8, and user terminal 14 wraps
Desktop computer, tablet computer and smart phone are included, can observe the state of lithium battery at any time, carries out cooling pressure release etc. in advance
The risk of explosion is evaded in explosion-proof work in advance.
In the present embodiment, the lithium battery state sensor module 4 further includes voltage sensor 44, current sensor
45, electrical quantity sensor 46 are connect by the sensor communication module 43 with the pcb board 8.
A kind of explosion-proof lithium battery of the utility model, acquired in real time by pressure sensor 41 lithium battery surface pressure,
If pressure is more than threshold value, the driving member 32 that pcb board 8 controls explosionproof hole 3 opens decompression cover 31, and the pressure in shell 2 is released
It puts, simultaneously because the reticulated, open 13 of explosion-proof tank 9, is connected to 2 inside of shell with atmospheric pressure, the excessive danger of pressure relief.
A kind of explosion-proof lithium battery of the utility model, acquired in real time by temperature sensor 42 lithium battery surface temperature,
If temperature is more than threshold value, pcb board 8 controls the switch 55 of semiconductor cooling device 5, powers on, generate the transfer of energy, electricity
Stream flows to N-type semiconductor 53 by hot side metal piece flow guide bar 522 from anode, then is flowed to by cold side metal piece flow guide bar 521
P-type semiconductor, then power cathode is flowed to by hot side metal piece flow guide bar 522, in this process, electric current is by N-type semiconductor
53 connectors for flowing to P-type semiconductor 54 absorb heat, and cold end insulating ceramic film 511 and cold side metal piece flow guide bar 521 cool down, cold
Insulating ceramic film 511 is held to cool down to lithium battery 1, due to the effect of the temperature difference by P-type semiconductor 54 close to the shell 2 of lithium battery 1
The connector for flowing to N-type semiconductor releases energy, and hot end insulating ceramic film 512 and hot side metal piece flow guide bar 522 heat up.
Further, when the temperature on 1 surface of lithium battery cannot lower quickly, pcb board 8 controls fan 10 and works, in time
The heat for blowing away hot end insulating ceramic film 512 and hot side metal piece flow guide bar 522, since the reticulated, open 13 of explosion-proof tank 9 designs,
So that heat is easier to be discharged, the excessively high danger of temperature is avoided.
A kind of explosion-proof lithium battery of the utility model further comprises voltage sensor 44, current sensor 45, electrical quantity sensor
46, the voltage of lithium battery 1, the situation of change of electric current, electricity can be collected in real time, are taken appropriate measures, are avoided the occurrence of
It fills, over-discharge or the case where internal short-circuit, evades the risk of explosion in advance.
The preferred embodiment of the utility model has shown and described in above description, as previously described, it should be understood that this is practical new
Type is not limited to forms disclosed herein, and should not be regarded as an exclusion of other examples, and can be used for various other groups
Conjunction, modification and environment, and above-mentioned introduction or the technology of related fields can be passed through within the scope of the inventive concept described herein
Or knowledge is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, then
It all should be in the protection scope of the appended claims for the utility model.
Claims (10)
1. a kind of explosion-proof lithium battery, including lithium battery (1), it is characterised in that further include the shell (2) of lithium battery, explosionproof hole (3),
Lithium battery state sensor module (4), semiconductor cooling device (5), screw (6), bracket (7), pcb board (8), explosion-proof tank (9),
Fan (10), positive terminal (11), negative terminal (12), reticulated, open (13)；The explosionproof hole (3), the lithium battery
State sensor module (4), the semiconductor cooling device (5) are arranged on the shell (2) surface, and the shell (2) passes through
The screw (6) is fixed on the bracket (7), and the pcb board (8) is fixed on the side of the bracket (7), the bracket
(7) it is fixed in the explosion-proof tank (9), forms chamber among the bracket (7) and the explosion-proof tank (9), be provided in chamber
The fan (10), the positive terminal (11), negative terminal (12) setting are pushed up in the outer surface of the explosion-proof tank (9)
It holds, is uniformly distributed reticulated, open (13) on the explosion-proof tank (9).
2. a kind of explosion-proof lithium battery according to claim 1, it is characterised in that: the lithium battery state sensor module
(4) include pressure sensor (41), temperature sensor (42) and sensor communication module (43), the pressure sensor (41) and
The temperature sensor (42) is embedded in shell (2) side surface, collects the number of lithium battery (1) surface pressing and temperature
According to；The sensor communication module (43) is connect by wireless network or cable network with the pcb board (8), and data are passed
It is defeated to arrive on the pcb board (8).
3. a kind of explosion-proof lithium battery according to claim 1, it is characterised in that: the explosionproof hole (3) is arranged in the shell
The top of body (2), the explosionproof hole (3) include decompression cover (31) and driving member (32), the driving member (32) and the pcb board
(8) it connects.
4. a kind of explosion-proof lithium battery according to claim 1, it is characterised in that: the semiconductor cooling device (5) includes
Cold end insulating ceramic film (511), cold side metal piece flow guide bar (521), the N-type semiconductor (53), P contacted with the shell (2)
Type semiconductor (54), hot side metal piece flow guide bar (522), hot end insulating ceramic film (512) and semiconductor cooling device switch
(55), the semiconductor cooling device (5) is powered using the lithium battery (1) internal direct current electricity, and direct current anode connects the N
Type semiconductor (53), cathode connect the P-type semiconductor (54), and the switch (55) connect with the pcb board (8).
5. a kind of explosion-proof lithium battery according to claim 1, it is characterised in that: the fan (10) is arranged in the bracket
(7) and the explosion-proof tank (9) is intermediate, is fixed on the explosion-proof tank (9) bottom inner surface, the fan (10) and the pcb board
(8) it connects.
6. a kind of explosion-proof lithium battery according to claim 1, it is characterised in that: the pcb board (8) is arranged in the bracket
(7) side uses the lithium battery (1) in-line power.
7. a kind of explosion-proof lithium battery according to claim 1, it is characterised in that: the explosion-proof tank (9) is welded using steel plate
It forms, surface uniform pore openings, in netted.
8. a kind of explosion-proof lithium battery according to claim 1, it is characterised in that: the positive terminal (11) and cathode connect
Terminal (12) is plugged in the explosion-proof tank (9) top, and internal positive and negative electrode is sequentially connected with the lithium battery (1).
9. a kind of explosion-proof lithium battery according to claim 1, it is characterised in that: further include user terminal (14), the use
Family terminal (14) is connect with pcb board (8), and user terminal (14) includes desktop computer, tablet computer and smart phone.
10. a kind of explosion-proof lithium battery according to claim 2, it is characterised in that: the lithium battery state sensor module
(4) further include voltage sensor (44), current sensor (45), electrical quantity sensor (46), pass through the sensor communication module
(43) it is connect with the pcb board (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820992460.0U CN209016168U (en) | 2018-06-26 | 2018-06-26 | A kind of explosion-proof lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820992460.0U CN209016168U (en) | 2018-06-26 | 2018-06-26 | A kind of explosion-proof lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209016168U true CN209016168U (en) | 2019-06-21 |
Family
ID=66828892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820992460.0U Expired - Fee Related CN209016168U (en) | 2018-06-26 | 2018-06-26 | A kind of explosion-proof lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209016168U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088028A (en) * | 2018-06-26 | 2018-12-25 | 南通鼎鑫电池有限公司 | A kind of explosion-proof lithium battery |
| CN112684738A (en) * | 2020-12-14 | 2021-04-20 | 广州极飞科技有限公司 | Device control method, device, battery module, and nonvolatile storage medium |
-
2018
- 2018-06-26 CN CN201820992460.0U patent/CN209016168U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088028A (en) * | 2018-06-26 | 2018-12-25 | 南通鼎鑫电池有限公司 | A kind of explosion-proof lithium battery |
| CN112684738A (en) * | 2020-12-14 | 2021-04-20 | 广州极飞科技有限公司 | Device control method, device, battery module, and nonvolatile storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190621 Termination date: 20210626 |