CN110364780A - A kind of battery pack, vehicle and energy storage device - Google Patents
A kind of battery pack, vehicle and energy storage device Download PDFInfo
- Publication number
- CN110364780A CN110364780A CN201810250213.8A CN201810250213A CN110364780A CN 110364780 A CN110364780 A CN 110364780A CN 201810250213 A CN201810250213 A CN 201810250213A CN 110364780 A CN110364780 A CN 110364780A
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- China
- Prior art keywords
- battery
- battery pack
- relay
- accommodating chamber
- cabin
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6572—Peltier elements or thermoelectric devices
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
- F25B2321/021—Control thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
Abstract
The invention discloses a kind of battery pack, vehicle and energy storage device, which includes cover board, battery cabin, battery, refrigerating plant, relay and jettron, and the cover board and battery flat body form accommodation space, and the battery is located at accommodation space；The cover board is equipped with the first, second current output terminal for extracted current, refrigerating plant one end is electrically connected with the first current output terminal, the other end connect the relay main contacts after be electrically connected with the second current output terminal, the refrigerating circuit of the first current output terminal, the second current output terminal, refrigerating plant is formed, jettron forms the control circuit that control refrigerating circuit opens and closes after connecting with the coil of low-tension supply, relay.Battery pack provided by the invention has dual security protection performance, and structure is simple, strong operability.
Description
Technical field
The present invention relates to technical field of lithium batteries, specially a kind of battery pack, vehicle and energy storage device.
Background technique
Existing battery energy storage device (such as lithium ion battery) generally forms mould group by single battery, that is, battery core in series and parallel,
For mould group by the series-parallel and devices such as combination battery management system, ultimately form an entirety has active refrigeration control device
Energy-storage system, to provide enough power for motor.Battery at work, especially in big multiplying power and extreme environment
When operation, a large amount of heat can be generated, if heat is not shed timely, internal temperature of battery can be caused to rise, it is excessively high
Temperature will cause that cell internal pressure is excessively high, not only result in the chemical property decline of battery itself, it is serious also to draw
It plays battery and the safety accidents such as explosion, on fire occurs.Device currently used for battery cooling mainly passes through battery thermal management system
Come what is controlled, temperature sensor acquires the temperature in battery pack, and the temperature of acquisition is transmitted to battery thermal management system, battery heat
Management system issues corresponding instruction according to temperature predetermined temperature threshold value, controls refrigerating plant and freezes for battery pack,
In whole process, any one link be there is a problem, be likely to freeze to battery pack in time, so as to cause biggish
Safety problem.
Summary of the invention
The purpose of the present invention is to provide a kind of battery packs, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides a kind of battery pack, including cover board, battery cabin, battery, for for institute
Refrigerating plant, relay, jettron and the low-tension supply of battery pack cooling are stated, the cover board and battery flat body, which are formed, to be accommodated
Chamber, the battery are located in accommodating chamber；The cover board is equipped with for the first current output terminal of extracted current and the second electricity
Output terminal is flowed, described refrigerating plant one end is electrically connected with the first current output terminal, and the other end is connected the master of the relay
It is electrically connected behind contact with the second current output terminal, forms the main touching comprising the first current output terminal, refrigerating plant, relay
The refrigerating circuit of point and the second current output terminal, the closure of the main contacts of the relay is so that refrigerating circuit is connected；It is described
Jettron forms control circuit after connecting with the coil of low-tension supply, relay；The jettron is used in the sealing
Space interior air pressure acts when increasing, and the control circuit is connected；The coil of relay is powered, and driving is located in refrigerating circuit
Relay main contacts closure, the refrigerating circuit is connected.
Preferably, the cover board includes upper cover plate, lower cover plate and side cover plate, the upper cover plate, lower cover plate and side cover plate limit
Make cover board cavity；The relay, low-tension supply and jettron are located in the cover board cavity；The accommodating chamber is lower cover
The space of plate and battery cabin composition.
Preferably, the pore structure that the lower cover plate is connected to the cover board cavity with the accommodating chamber at least provided with one.
Preferably, phase-change material is filled in the cavity of the cover board.
Preferably, it is equipped with insulating sealer in the battery flat body, the insulating sealer is by the cover board and battery flat
The accommodating chamber formed between body is divided into accommodating chamber and lower accommodating chamber；The battery is located in lower accommodating chamber, the relay, low
Voltage source and jettron are located in upper accommodating chamber.
Preferably, the insulating sealer is connect with the side wall of the battery cabin.
Preferably, the hole that the insulating sealer is connected to upper accommodating chamber with lower accommodating chamber at least provided with one.
Preferably, phase-change material is filled in the upper accommodating chamber.
Preferably, the phase-change material is fire-fighting fire extinguishing liquid.
Preferably, the lower cover plate and/or insulating sealer by top mesh supporting element, the netted supporting element of lower layer and are located at
Insulating polymer film between the netted supporting element of top mesh supporting element and lower layer is constituted.
Preferably, the top mesh supporting element, the netted supporting element of lower layer be each independently selected from the netted supporting element of ceramics,
The metal net shaped supporting element of plastic net supporting element or insulation processing.
Preferably, the refrigerating plant includes semiconductor chilling plate.
Preferably, the refrigerating plant further includes radiator, and the radiator is that air cooling equipment and/or liquid cooling fill
It sets.
Preferably, the battery cabin includes interior battery cabin and the outer battery cabin external positioned at interior battery flat, described
Refrigerating plant is between interior battery cabin and outer battery cabin.
Preferably, the battery pack further includes battery thermal management system, the battery thermal management system and refrigerating plant electricity
Connection, the battery thermal management system can control refrigerating plant.
Preferably, bleeder mechanism is also in series in the refrigerating circuit.
Preferably, the limit bleeder mechanism includes resistance.
Preferably, medium is also filled in the battery flat body, the medium is selected from liquid silicone oil, phase-change material or lazy
One or more of property gas.
A second object of the present invention is to provide a kind of vehicles, including above-mentioned battery pack.
Third object of the present invention is to provide a kind of energy storage devices, including above-mentioned battery pack.
Compared with prior art, the beneficial effect of the invention patent is: when battery pack work, the intracorporal electricity of battery flat
Chi Yin powers and generates heat, and the intracorporal air heats expansion of battery flat, pressure becomes larger, and jettron closure, relay coil is powered
Attracting electric relay main contacts afterwards is connected refrigerating circuit, refrigerating plant is made to freeze, and radiator accelerates hot-side heat dissipation, when in battery
When portion's temperature reaches equilibrium, battery cabin pressure reduces, and jettron disconnects, and stops refrigeration；Entire process of refrigerastion it is spontaneous into
Row；Simultaneously as refrigerating circuit and battery high-voltage charge and discharge are under parallel connection, after refrigerating circuit is connected, can also play
The effect of shunting, reduces under extreme case, destruction of the high current to battery pack, while refrigeration, takes into account shunting；In addition, control
Phase-change material can be filled in space where circuit processed, when battery cabin internal temperature be more than certain value, influence battery
Service performance when, the filler in cabin does not start also to expand, or in the unconspicuous situation of expansion, which has reached phase
Become the evaporation point of material, after phase-change material vaporization, gas pressure is obviously increased, and jettron closure, conducting refrigerating circuit is realized
Refrigeration, if the phase-change material selected can fire-fighting fire extinguishing, in extreme circumstances, such as batteries caught fire, phase-change material flows into battery
It inside cabin, may be implemented to put out a fire in early days, prevent battery is out of control from causing more severe safety accident.
Battery pack in the present invention, structure is simple, and battery hermetization is good, and cooling and warming is more efficient, even if battery is warm
Management system damage, also may be implemented to freeze, thus the security performance of dual promotion battery pack.
Detailed description of the invention
Fig. 1 is the schematic diagram according to the battery pack of the embodiment of the present invention 1；
Fig. 2 is the schematic diagram according to battery pack in the embodiment of the present invention 2；
Fig. 3 is the schematic diagram according to battery pack in the embodiment of the present invention 3；
In figure: 1, explosion-proof valve, 2, positive terminal, 3, negative terminal, 4, the main contacts of relay, 5, the coil of relay, 6, low
Voltage source, 7, jettron, 8, cover board, 81, upper cover plate, 82, lower cover plate, 821, the netted supporting element of upper layer ceramics, 822, insulation
Macromolecule membrane, 823, the netted supporting element of lower layer's ceramics, 9, refrigerating circuit, 10, refrigerating plant, 11, radiator, 12, battery
Cabin, 121, interior battery cabin, 122, outer battery cabin.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " be usually with
It is defined on the basis of the page of respective drawings, " inside and outside " refers to the inner and outer of corresponding component profile.
The present invention provides a kind of battery pack, including cover board, battery cabin, battery, for what is cooled down for the battery pack
Refrigerating plant, relay, jettron and low-tension supply, the cover board and battery flat body form accommodating chamber, and the battery is located at
In accommodating chamber；The cover board is equipped with the first current output terminal and the second current output terminal for extracted current, described
Refrigerating plant one end is electrically connected with the first current output terminal, the other end connect the relay main contacts after with the second electric current
Output terminal electrical connection, forms, and is formed comprising the first current output terminal, refrigerating plant, the main contacts of relay and the second electricity
The refrigerating circuit of output terminal is flowed, the closure of the main contacts of the relay is so that refrigerating circuit is connected；The jettron with
Low-tension supply, relay coil series connection after form control circuit；The jettron is used for the gas inside the sealing space
Pressure acts when increasing, and the control circuit is connected；The coil of relay is powered, and driving is located at the relay in refrigerating circuit
Main contacts closure, is connected the refrigerating circuit.
Cover board is equipped with the first current output terminal and the second current output terminal for extracted current, for exporting electricity
Pond packet internal current, generally positive terminal and negative terminal, the first current output terminal can be positive terminal, or
Negative terminal, corresponding when the first current output terminal is the positive terminal period of the day from 11 p.m. to 1 a.m, the second current output terminal is negative terminal；When
One current output terminal is the negative pole end period of the day from 11 p.m. to 1 a.m, and the second current output terminal is positive terminal.First current output terminal and second
The number of current output terminal, there is no limit can be for one or multiple by the present invention.
There is no limit can be this field conventional batteries cabin, such as can be conductive metal to the battery cabin present invention
Battery cabin, or plastic battery cabin of insulation etc..Preferably metal battery cabin, there is no limit by the shape present invention,
It such as can be conventional automobile tray shape, or battery cupboard shape of energy storage etc..Battery cabin can be single layer structure,
It may be multilayered structure, preferred battery cabin of the present invention is multilayered structure, i.e. battery cabin includes interior battery cabin and is located at
The external outer battery cabin of interior battery flat.Refrigerating plant is between interior battery cabin and outer battery cabin.Make semiconductor in this way
Refrigerating plant will not both interfere various structures and the component inside battery flat body, will not be done by battery flat body external circuit
It disturbs.
Medium can also be filled in battery flat body, the medium can be selected from liquid silicone oil, phase-change material or inertia
One or more of gas is conducive to induction of the jettron to inside battery.
Battery can be herein single or multiple single batteries, the battery modules of assembling or multiple battery modules etc., this hair
It is bright that there is no limit.
Refrigerating plant is located in cover board and/or battery cabin, it can is located on cover board, can also be located at battery cabin
On, surfaces externally and internally can be located at, or be embedded in inside, for example, can be preferred, refrigerating plant is located at the interior of bilayer cells cabin
Between battery cabin and outer battery cabin.
Low-tension supply is the starting voltage that relay is attracted, and the application with no restriction, such as can be knob to low voltage
Detain battery pack.Jettron pneumatically utilizes cylinder output shaft by the connection with transmission shaft, by cylinder point, resultant motion is converted to
The rotary motion of 90 ° of ranges of transmission shaft, the conducting rod being mounted on transmission shaft is to realize that the switching on and off of itself moves.Work as electricity
When pond is heated, gas expansion, into after the cylinder of jettron, the movement of pusher cylinder realizes the closure of jettron, low
Under the starting of voltage source, section relay coil is powered, and refrigerating circuit is connected in attracting electric relay main contacts closure.
In the application, to cover board, there is no limit can be the cover board in conventional design, such as can be metal or plastics material
Made of material.Preferably, deck design is double-layer structure, and cover board includes lower cover plate and side cover plate, the upper cover plate, lower cover plate and
Side cover plate limits cover board cavity；The relay, low-tension supply and jettron are located in the cover board cavity；The receiving
Chamber is the space of lower cover plate and battery cabin composition, and upper cover plate is made of the material of enough structural strengths, as metallic steel, aluminium or
Alloy etc., lower cover plate constitute with Heat Conduction Material and have certain supporting role, relay, low-tension supply and pneumatic switching group at
Control circuit be located in cover board cavity, avoid interfering with each other with the intracorporal complicated circuit of battery flat, when battery in battery flat body
After heated, since lower cover plate is that Heat Conduction Material is constituted, heat can be passed to rapidly to cover board cavity, the gas in cover board cavity by
Thermal expansion starting jettron, under the action of low-tension supply, relay coil is powered, attracting electric relay relay main contacts,
Refrigerating circuit is connected.
The pore structure that preferred lower cover plate can be such that the cover board cavity is connected to battery cabin at least provided with one, such as under
Cover board is equipped with a through-hole or mesh-supported part, after battery is heated in battery flat body, even if lower cover plate is thermally conductive too late
When, by through-hole, the heat of battery cabin can also be passed in cover board cavity, and when gases are heated, they expand in cover board cavity starts gas
Dynamic switch, under the action of low-tension supply, refrigerating circuit is connected in attracting electric relay.
Preferably, phase-change material is filled in cover board cavity.Phase-change material is a kind of high pressure resistant, insulation, is not burnt and not
Promote any one of incendiary material or several, when the internal temperature of battery cabin is more than certain value, influences making for battery
When with performance, the filler in cabin does not start also to expand, or in the unconspicuous situation of expansion, which has reached phase transformation material
The evaporation point of material can equally cause the closure of jettron, refrigerating circuit further is connected by relay.
It is further preferred that lower cover plate is supported by top mesh supporting element, the netted supporting element of lower layer and positioned at top mesh
Insulating polymer film between the netted supporting element of part and lower layer is constituted, such as rubber etc.；The phase-change material is fire-fighting fire extinguishing
Liquid, such as perflexane, in extreme circumstances, such as batteries caught fire, after insulating polymer film is damaged, fire-extinguishing chemical is flowed into
Inside battery flat body, it may be implemented to put out a fire in early days.
According to the battery pack of the present application, insulating sealer is equipped in the battery flat body, the insulating sealer will
The accommodating chamber formed between being formed between the cover board and battery cabin is divided into accommodating chamber and lower accommodating chamber；The battery position
In in lower accommodating chamber, the relay, low-tension supply and jettron are located in upper accommodating chamber.It, can be with by insulating sealer
Relay, low-tension supply and jettron and the intracorporal complicated circuit of battery flat are separated, prevent from interfering with each other each other.Absolutely
Edge sealing element can connect on the side wall of battery cabin, can also be located in battery cabin, and the application is not construed as limiting, specifically
Connection type, the application do not repeat them here herein yet.
The insulating sealer is made from a material that be thermally conductive and can play certain supporting role, thus sealing space instantly
Battery it is heated when, heat can be passed in time to upper sealing space by insulating sealer, the gas of upper sealing space is heated
Expansion, gas pressure increase, and jettron closure, relay coil is powered, and refrigerating circuit is connected in attracting electric relay main contacts.
Preferably, the pore structure that insulating sealer can be such that the upper accommodating chamber is connected to lower accommodating chamber at least provided with one, such as insulate
Sealing element is equipped with a through-hole, or is mesh-supported part, after battery is heated in battery flat body, even if insulating sealer passes
Not in time, by through-hole, the heat of battery cabin can also pass in accommodating chamber rapidly heat, and the gas in upper accommodating chamber is heated
Expansion starting jettron, under the action of low-tension supply, relay coil is powered, the main contacts of attracting electric relay, conducting system
Cold loop.
Preferably, upper accommodating chamber is filled with phase-change material, and the temperature inside accommodating chamber is more than certain value instantly, influences electricity
When the service performance in pond, the filler in cabin does not start also to expand, or in the unconspicuous situation of expansion, which reaches
The evaporation point of phase-change material can equally cause the closure of jettron, further pass through conducting refrigerating circuit.
It is further preferred that insulating sealer is by top mesh supporting element, the netted supporting element of lower layer and positioned at top mesh
Insulating polymer film among the netted supporting element of supporting element and lower layer is constituted, such as rubber etc.；The phase-change material is fire-fighting
Extinguishing fluid, such as perflexane, in extreme circumstances, such as batteries caught fire, after insulating polymer film is damaged, fire-extinguishing chemical
It flows into inside battery flat body, may be implemented to put out a fire in early days.
Above-mentioned mesh-supported part is selected from the metal net shaped branch of the netted supporting element of ceramics, plastic net supporting element or insulation processing
One or more of support member.Insulating polymer film can be designed to single layer or multilayer, for example, by insulating polymer film
It is designed to double-layer structure, including upper layer flexible polymer films and lower layer's macromolecule membrane, it can also be directly high in upper layer elasticity
Phase-change material is added in cavity structure between molecular film and lower layer's macromolecule membrane.
According to the battery pack of the application, the refrigerating plant includes the cutting that can cool down in the prior art for battery pack
Device for cooling, such as air-conditioning and semiconductor chilling plate etc., it is preferred that the refrigerating plant is semiconductor chilling plate, works as refrigerating plant
For semiconductor chilling plate, which does not need complicated pipeline, and battery pack structure is simple.
The refrigerating plant is semiconductor chilling plate, and semiconductor chilling plate includes hot end and cold end；Cold end is for absorbing heat, heat
End is for radiating, battery inside general cold end adjacent cells cabin, the heat distributed for absorbing battery, and the hot end is general
Far from battery, for the heat of absorption to be dispersed into outside batteries, if semiconductor cooling device is located at battery flat external surface, heat
End can it is exposed in air, reinforce heat dissipation.Further preferably, the hot end side of semiconductor cooling device is provided with radiator, leads to
It crosses radiator to radiate to the heat that hot end distributes, radiator can be air cooling equipment and/or liquid cooling apparatus etc..Such as it dissipates
Hot charging is set to on-board air conditioner or fan.Specific connection type is known to the skilled person, and details are not described herein again.
Above-mentioned refrigerating plant can integrate use each other, such as semiconductor chilling plate is used in combination with air-conditioning, the application
It is not construed as limiting.
When internal temperature of battery reaches equilibrium, gas pressure reduces, and jettron disconnects, and refrigerating circuit disconnects, and stops
Refrigeration, entire control process is simple, simultaneously as refrigerating circuit and battery high-voltage charge and discharge are under parallel connection, when circuit connects
After logical, shunting can also be played the role of, reduced under extreme case, destruction of the high current to battery pack is simultaneous while refrigeration
It cares for and shunts.Preferably, it also connects in refrigerating circuit bleeder mechanism, such as resistance.
Battery pack of the invention can further preferably include battery thermal management system, the battery thermal management system and system
Device for cooling is electrically connected, the battery thermal management system can double of refrigerating plant controlled.When battery pack is in the external world
In the case that environment temperature is relatively low, refrigerating plant is opened in battery thermal management system temperature collection signal, control, thus to battery
Packet is heated.
The vehicle is related to battery pack of the present invention.
The energy storage device is related to battery pack of the present invention.The energy storage device can be propulsion system energy storage device,
Such as Vehicular battery packet, it is also possible to the energy storage device of energy-accumulating power station, communication base station, can also be portable power tool and equipment
Deng.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, other implementations obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.From start to finish similar attached drawing editor indicates similar constituent element in the description.
Embodiment 1
The present embodiment is mainly used for illustrating battery pack.Fig. 1 is the schematic diagram according to the battery pack of the embodiment of the present invention 1.Reference
Fig. 1 present invention provides a kind of technical solution: being herein semiconductor including cover board 8, battery cabin 12, battery and refrigerating plant 10
Cooling piece, relay, low-tension supply 6, jettron 7；The cover board 8 forms accommodating chamber, the battery position with battery cabin 12
In in accommodating chamber；Cover board 8 is double-layer structure, including upper cover plate 81 and lower cover plate 82, jettron, relay and low-tension supply position
In the cover board cavity that upper cover plate 81 and lower cover plate 82 limit, cover board 8 is equipped with positive terminal 2 and cathode for extracted current
Terminal 3, semiconductor chilling plate one end are connect with negative terminal 3, after the main contacts 4 of other end series relay with positive terminal 2
Electrical connection forms positive terminal 2, negative terminal 3, semiconductor chilling plate 10, the refrigerating circuit 9 of relay main contacts, battery flat
Body 12 divides the outer battery cabin 122 for interior battery cabin 121 and outside interior battery cabin 121, and semiconductor chilling plate 10 is located at
In space structure between interior battery cabin 121 and outer battery cabin 122, semiconductor chilling plate includes hot end and cold end, cold end
With interior 121 appearance face contact of battery cabin, radiator 11 is close in hot end, and radiator 11 is air cooling equipment herein.Lower layer's lid
Plate 82 is the netted supporting element of ceramics, is filled with silicone oil in battery cabin 12.
When battery-heating, internal temperature is increased, the silicone oil vaporization filled in battery cabin 12, interior pressure increase, pneumatically
Switch 7 is closed, and under the action of low-tension supply, 5 attracting electric relay main contacts 4 of relay coil, refrigerating circuit 9 is connected, and is partly led
The cold end of body cooling piece freezes and absorbs the heat transfer inside battery cabin 12 to the hot end of semiconductor chilling plate, air cooling equipment
Accelerate hot-side heat dissipation, realizes the refrigeration of battery cabin 12, when internal temperature of battery reaches equilibrium, pressure subtracts in battery cabin 12
Small, jettron 7 disconnects, and relay main contacts disconnect, and refrigerating circuit 9 disconnects, and stops refrigeration, because of refrigerating circuit 9 and battery
High-voltage charge and discharge is under parallel connection, after refrigerating circuit 9 is connected, can also be played the role of shunting, be reduced extreme feelings
Under condition, destruction of the high current to battery pack while refrigeration, takes into account shunting.
Embodiment 2
The present embodiment is mainly used to illustrate battery pack.Had other than cover board 8 according to the battery pack of embodiment 2 referring to Fig. 2
With the battery pack basically same structure of embodiment 1, therefore ignore the repeated description of similar elements.
As shown in Fig. 2, lower cover plate is by the netted supporting element 821 of upper layer ceramics, the netted supporting element 823 of lower layer's ceramics and is located at
Insulating polymer film 822 between the netted supporting element 821 of upper layer ceramics, the netted supporting element 823 of lower layer's ceramics forms, cover board chamber
Perflexane is filled in body.
When battery-heating, internal temperature increase, when battery cabin 12 internal temperature be more than certain value, influence battery
Service performance when, the filler silicone oil in cabin does not start also to expand, or in the unconspicuous situation of expansion, which reaches
The evaporation point of perflexane in cover board cavity, perflexane vaporization, pressure increases suddenly in cover board, jettron closure,
Relay coil is powered, attracting electric relay main contacts, and refrigerating circuit 9 is connected, realizes the refrigeration of battery flat, such as batteries caught fire, fire
Flame damages insulating polymer film 822 by the netted supporting element 823 of ceramics, and perflexane flows into inside battery cabin 12, realizes
Early stage puts out a fire.
Embodiment 3
The present embodiment is mainly used for illustrating battery pack.Referring to Fig. 3, other than covering plate structure and battery flat, the battery of the present embodiment
The battery pack basically same structure having with embodiment 1 is wrapped, therefore ignores the repeated description of similar elements.
As described in Figure 3, cover board 8 and battery cabin 12 form the accommodating chamber of placing battery, are equipped with insulated enclosure in battery flat
Part, the insulating sealer include the netted supporting element 821 of upper layer ceramics, the netted supporting element 823 of lower layer's ceramics and are located at upper layer pottery
Insulating polymer film 822 between porcelain mesh-supported part 821 and the netted supporting element 823 of lower layer's ceramics, the insulating sealer
Connect with the side wall of interior battery cabin 121, the accommodation space that cover board and battery cabin 12 are formed be divided into upper accommodation space and
Lower accommodation space, battery are located in lower accommodation space, the control circuit position that jettron, low-tension supply and relay coil are formed
In in upper accommodation space, the electrical connection of semiconductor chilling plate negative terminal, the other end connect with relay main contacts 4 after with positive terminal
Son 2 connects, and forms the refrigerating circuit 9 comprising positive terminal 2, negative terminal 3, semiconductor chilling plate, relay main contacts, upper appearance
It receives in space filled with perflexane.
When battery-heating, internal temperature is increased, the silicone oil vaporization filled in battery cabin 12, interior pressure increase, pneumatically
Switch 7 is closed, and under the action of low-tension supply, 5 attracting electric relay main contacts 4 of relay coil, refrigerating circuit 9 is connected, and is partly led
The cold end of body cooling piece freezes and absorbs the heat transfer inside battery cabin 12 to the hot end of semiconductor chilling plate, air cooling equipment
Accelerate hot-side heat dissipation, realizes the refrigeration of battery cabin 12, when internal temperature of battery reaches equilibrium, pressure subtracts in battery cabin 12
Small, jettron 7 disconnects, and relay main contacts 4 disconnect, and refrigerating circuit 9 disconnects, and stops refrigeration, because of refrigerating circuit 9 and battery
High-voltage charge and discharge is under parallel connection, after refrigerating circuit 9 is connected, can also be played the role of shunting, be reduced extreme feelings
Under condition, destruction of the high current to battery pack while refrigeration, takes into account shunting.
When the internal temperature of battery cabin 12 is more than certain value, filling when influencing the service performance of battery, in cabin
Object silicone oil does not start also to expand, or in the unconspicuous situation of expansion, which has reached the perflexane in cover board cavity
Evaporation point, perflexane vaporize, and pressure increases suddenly in cover board, and jettron closure, relay coil is powered, attracting electric relay
Refrigerating circuit 9 is connected in main contacts, realizes the refrigeration of battery flat, such as batteries caught fire, and flame is damaged by the netted supporting element 823 of ceramics
Bad insulating polymer film 822, perflexane flow into inside battery cabin 12, realize that early stage puts out a fire.
Battery pack described in above embodiments is used equally for vehicle and energy storage device, specific mounting means and prior art phase
Together, details are not described herein again.
In the description of the present invention, it is to be understood that, the orientation or positional relationship of the instructions such as term " length ", width "
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as
Limitation of the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (20)
1. a kind of battery pack, including cover board, battery cabin, battery, the refrigerating plant for cooling down for the battery pack, relay
Device, jettron and low-tension supply, it is characterised in that:
The cover board and battery flat body form accommodating chamber, and the battery is located in accommodating chamber；
The cover board is equipped with the first current output terminal and the second current output terminal for extracted current, the refrigeration dress
One end is set to be electrically connected with the first current output terminal, the other end connect the relay main contacts after with the second current output terminal
Son electrical connection, forms comprising the first current output terminal, refrigerating plant, the main contacts of relay and the second current output terminal
Refrigerating circuit, the closure of the main contacts of the relay is so that refrigerating circuit is connected；
The jettron forms control circuit after connecting with the coil of low-tension supply, relay；The jettron is used for
The sealing space air pressure inside acts when increasing, and the control circuit is connected；The coil of relay is powered, and driving is located at system
The main contacts of relay in cold loop is closed, and the refrigerating circuit is connected.
2. battery pack according to claim 1, which is characterized in that the cover board includes upper cover plate, lower cover plate and side cover plate, institute
It states upper cover plate, lower cover plate and side cover plate and limits cover board cavity；The relay, low-tension supply and jettron are located at the lid
In plate cavity；The accommodating chamber is the space of lower cover plate and battery cabin composition.
3. battery pack according to claim 2, which is characterized in that the lower cover plate makes the cover board cavity at least provided with one
The pore structure being connected to the accommodating chamber.
4. battery pack according to claim 2, which is characterized in that be filled with phase-change material in the cavity of the cover board.
5. battery pack according to claim 1, which is characterized in that insulating sealer is equipped in the battery flat body, it is described exhausted
The accommodating chamber formed between the cover board and battery cabin is divided into upper accommodating chamber and lower accommodating chamber by edge sealing element；The battery position
In in lower accommodating chamber, the relay, low-tension supply and jettron are located in upper accommodating chamber.
6. battery pack according to claim 5, which is characterized in that the insulating sealer and the side wall of the battery cabin connect
It connects.
7. battery pack according to claim 5, which is characterized in that the insulating sealer makes upper accommodating chamber at least provided with one
The hole being connected to lower accommodating chamber.
8. battery pack according to claim 5, which is characterized in that be filled with phase-change material in the upper accommodating chamber.
9. according to any battery pack described in claim 4 or 8, which is characterized in that the phase-change material is fire-fighting fire extinguishing liquid.
10. according to the battery pack of claim 2 or 5, which is characterized in that the lower cover plate and/or insulating sealer are by upper layer
Mesh-supported part, the netted supporting element of lower layer and the insulating polymer between the netted supporting element of top mesh supporting element and lower layer
Film is constituted.
11. according to battery pack described in claim 10, it is characterised in that: the top mesh supporting element, the netted supporting element of lower layer
It is each independently selected from the metal net shaped supporting element of the netted supporting element of ceramics, plastic net supporting element or insulation processing.
12. battery pack according to claim 1, which is characterized in that the refrigerating plant includes semiconductor chilling plate.
13. battery pack according to claim 12, which is characterized in that the refrigerating plant further includes radiator, described to dissipate
Hot charging is set to air cooling equipment and/or liquid cooling apparatus.
14. battery pack according to claim 1, which is characterized in that the battery cabin includes interior battery cabin and is located at interior
The external outer battery cabin of battery flat, the refrigerating plant is between interior battery cabin and outer battery cabin.
15. battery pack according to claim 1, which is characterized in that the battery pack further includes battery thermal management system, described
Battery thermal management system is electrically connected with refrigerating plant, and the battery thermal management system can control refrigerating plant.
16. battery pack according to claim 1, which is characterized in that be also in series with bleeder mechanism in the refrigerating circuit.
17. 6 battery pack according to claim 1, which is characterized in that the limit bleeder mechanism includes resistance.
18. battery pack according to claim 1, which is characterized in that be also filled with medium, the medium in the battery flat body
Selected from one or more of liquid silicone oil, phase-change material or inert gas.
19. a kind of vehicle, which is characterized in that including battery pack described in any one of claim 1-18.
20. a kind of energy storage device, which is characterized in that including battery pack described in any one of claim 1-18.
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| CN201810250213.8A CN110364780B (en) | 2018-03-26 | 2018-03-26 | Battery pack, vehicle and energy storage device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810250213.8A CN110364780B (en) | 2018-03-26 | 2018-03-26 | Battery pack, vehicle and energy storage device |
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| CN110364780B CN110364780B (en) | 2022-03-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498339A (en) * | 2022-08-18 | 2022-12-20 | 惠州市纬世新能源有限公司 | Battery safety supporting structure of energy storage power supply |
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| CN110364780B (en) | 2022-03-18 |
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