CN109962190A - Battery pack and vehicle - Google Patents
Battery pack and vehicle Download PDFInfo
- Publication number
- CN109962190A CN109962190A CN201711432882.9A CN201711432882A CN109962190A CN 109962190 A CN109962190 A CN 109962190A CN 201711432882 A CN201711432882 A CN 201711432882A CN 109962190 A CN109962190 A CN 109962190A
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- China
- Prior art keywords
- battery
- battery pack
- heat
- absorbing material
- accommodating chamber
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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
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- 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
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
-
- 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
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of battery pack and vehicle, battery pack includes: shell, elastic membrane and battery, the inner hollow of the shell；The elastic membrane is arranged in the enclosure interior and the enclosure interior space is divided into battery accommodating chamber and cushion chamber, and the cushion chamber is located at the top of the battery accommodating chamber；Wherein, the first heat-absorbing material is accommodated in the battery accommodating chamber, first heat-absorbing material is in the heated production gas of the first predetermined temperature threshold values；The battery is located in the battery accommodating chamber.Cooperated as a result, by shell and elastic membrane and battery, is able to ascend the energy density of battery pack, so as to increase the electricity of battery pack, and cushion chamber can provide deformation space for elastic membrane, so as to promote the safety in utilization of battery pack.
Description
Technical field
The present invention relates to technical field of vehicle, in particular to a kind of battery pack and the vehicle with the battery pack.
Background technique
In the related technology, battery pack is typically all that battery cell passes through structural member formation mould group in series or in parallel, mould group
It is then assembled into battery pack, it, should between battery cell, between mould group and mould group be all to have biggish gap or be filled with some structural members
The presence of gap or structural member occupies the space of battery pack significantly, to make the energy density of battery pack decline to a great extent, most
The performance and market acceptance level of product are influenced eventually.
Moreover, battery pack cooling (heating) is typically cooling by natural cooling outside battery pack or liquid cooling pipeline,
Cooling line may be unevenly distributed, can only the part of part to battery pack or mould group realize cooling (or heating), most
Percentage of batteries decaying is caused to accelerate eventually.
In addition, percentage of batteries packet uses phase change composite material, heat-conduction oil heat optimizes, but these materials itself are in natural ring
Perhaps material itself is easy to appear oxidation or expansion under the hot conditions after battery-heating under border, brings new safety
Hidden danger.Fire behavior once occurs for battery pack, and not certain measure prevents the expansion of fire, is easy to cause fire spread out of control, from
And bring biggish life and property loss.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of electricity
Chi Bao, the battery pack can promote the energy density of battery pack, can also promote the safety in utilization of battery pack.
The present invention further proposes a kind of vehicle.
Battery pack according to the present invention includes: shell, elastic membrane and battery, the inner hollow of the shell；The elasticity
Film is arranged in the enclosure interior and the enclosure interior space is divided into battery accommodating chamber and cushion chamber, and the cushion chamber is located at
The top of the battery accommodating chamber；Wherein, the first heat-absorbing material, first heat-absorbing material are accommodated in the battery accommodating chamber
In the heated production gas of the first predetermined temperature threshold values；The battery is located in the battery accommodating chamber.
Battery pack according to the present invention, is cooperated by shell and elastic membrane and battery, and the energy for being able to ascend battery pack is close
Degree, so as to increase the electricity of battery pack, and cushion chamber can provide deformation space for elastic membrane, so as to promote electricity
The safety in utilization of Chi Bao.
Optionally, the second heat-absorbing material is accommodated in the cushion chamber, second heat-absorbing material is in the second preset temperature
Threshold values is heated to produce gas.
Further, the first predetermined temperature threshold values is less than the second temperature threshold values；In the battery accommodating chamber
When temperature is more than or equal to the first preset temperature threshold values, first heat-absorbing material is heated to produce gas；In the battery accommodating chamber
Temperature when being greater than the second preset temperature threshold values, the first heat-absorbing material and second heat-absorbing material are heated to produce gas.
Further, the shell includes: pallet and outer cover plate, and the elastic membrane is arranged in the pallet, the support
Space in disk below the elastic membrane is the battery accommodating chamber；The outer cover plate be spaced apart with the elastic membrane and with
The pallet is mutually fixed, and the space that the pallet, the outer cover plate and the elastic membrane limit is the cushion chamber.
Specifically, relief valve is provided on the outer cover plate, relief valve temperature in the battery pack reaches third
It is opened when preset temperature threshold values.
Further, the second preset temperature threshold values is less than the third preset temperature threshold values；The battery accommodating chamber
When interior temperature is greater than the third preset temperature threshold values, first heat-absorbing material and the heated production of second heat-absorbing material
Gas, the relief valve on the outer cover plate are opened.
Specifically, the outer cover plate includes: body part and pressure release portion, and the pressure release portion is connected with the body part and in institute
State when temperature in battery pack reaches third preset temperature threshold values rupture or with the body part from.
Optionally, the thickness in the pressure release portion is less than the thickness of the body part.
Further, the body part and the pressure release portion are welded to connect.
Specifically, second heat-absorbing material is fire-fighting agent.
Optionally, the outer cover plate is plugged on the top of the pallet.
Further, it is provided with inserting groove on the outer cover plate, connection-peg, the grafting slot position are provided on the pallet
The lower end surface of part on the inside of the connection-peg is only against in the elastic membrane.
Specifically, the lower part of the elastic membrane, which is provided with, is used to support the elastic membrane and grid-shaped supporting element.
Optionally, the battery includes multiple battery cells, and the multiple battery cell is contained in the battery accommodating chamber
Interior, first heat-absorbing material is contained between the adjacent battery cell.
Further, the battery pack further include: multiple radiating pieces, multiple radiating pieces are arranged two adjacent
The outside of the battery cell between the battery cell and/or positioned at one end.
Specifically, first heat-absorbing material is phase-change material or conduction oil.
Vehicle according to the invention, including above-mentioned battery pack.
Detailed description of the invention
Fig. 1 and Fig. 2 is the cross-sectional view of battery pack according to an embodiment of the present invention in different directions；
Fig. 3 is the schematic diagram of the outer cover plate of battery pack according to an embodiment of the present invention.
Appended drawing reference:
Battery pack 10；
Pallet 1；Internal perisporium 11；Periphery wall 12；Connection-peg 13；
Battery cell 2；Elastic membrane 5；
Outer cover plate 6；Inserting groove 61；Body part 62；Pressure release portion 63；
Supporting element 7；
Shell 8；Battery accommodating chamber 81；Cushion chamber 82.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features surely.Of the invention
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Battery pack 10 according to an embodiment of the present invention is described in detail below with reference to Fig. 1-Fig. 3.
As shown in Figure 1, battery pack 10 according to an embodiment of the present invention includes: shell 8, elastic membrane 5 and battery, battery can be with
Including multiple battery cells 2, the inner hollow of shell 8, elastic membrane 5 is arranged in the inside of shell 8, and elastic membrane 5 is by shell 8
Inner space is divided into battery accommodating chamber 81 and cushion chamber 82, and battery cell 2 is located in battery accommodating chamber 81, and battery can be battery
Monomer 2 is placed with multiple battery cells 2 in battery accommodating chamber 81, and cushion chamber 82 is located at the top of battery accommodating chamber 81, also,
The first heat-absorbing material is accommodated in battery accommodating chamber 81, the first heat-absorbing material is in the heated production gas of the first predetermined temperature threshold values.Change speech
It, the first heat-absorbing material can be converted to gas in heat absorption, reduce battery temperature so as to reach heat absorption by phase transition process
The effect of degree, such cooling method is simple, good cooling effect and safety.
The battery pack 10 eliminates the setting form of mould group as a result, and multiple battery cells 2 are disposed directly at battery accommodating chamber
In 81, the space of battery pack 10 can be utilized to the greatest extent, moreover, can be spaced between every two adjacent battery cell 2
Preset distance, preset distance can be the distance less than 2mm, in this way in the case where the space of battery accommodating chamber 81 is certain, energy
Enough increase arrangement quantity of the battery cell 2 in battery accommodating chamber 81, the energy density of battery pack 10 can be promoted, so as to
Increase the electricity of battery pack 10.
Also, when elastic membrane 5 deforms, cushion chamber 82 can provide deformation space for elastic membrane 5, it is ensured that electricity
The safety in utilization of pond packet 10.
Wherein, shell 8 can also include: pallet 1 and outer cover plate 6, and elastic membrane 5 is arranged in pallet 1, and in pallet 1
Space positioned at 5 lower section of elastic membrane is battery accommodating chamber 81, and outer cover plate 6 is spaced apart with elastic membrane 5 and fixes with 1 phase of pallet,
The space that pallet 1, outer cover plate 6 and elastic membrane 5 limit is cushion chamber 82.
Wherein, battery accommodating chamber 81 is limited in pallet 1, the top of battery accommodating chamber 81 is opened wide, multiple battery cells 2
Close parallel arrangement in column, multiple battery cells 2 are respectively received in battery accommodating chamber 81, it is to be understood that multiple batteries
Monomer 2 can be adhesive in battery accommodating chamber 81 using structure, can also be fixed on battery by the metal framework with insulating layer
In accommodating chamber 81, as long as multiple battery cells 2 can be fixed in battery accommodating chamber 81, other fixed forms can also be with.
The second heat-absorbing material is accommodated in cushion chamber 82, the second heat-absorbing material is heated in the second preset temperature threshold values and produces gas,
The second heat-absorbing material becomes gas in the case where being higher than certain temperature as a result, and then the second heat-absorbing material can take away battery accommodating chamber
Heat in 81, when the rising of gaseous second heat-absorbing material encounters outer cover plate 6, gaseous second heat-absorbing material and outer cover plate 6
Heat exchange is carried out, hot transmitting is carried out, realizes the heat dissipation of the second heat-absorbing material, after gaseous second heat-absorbing material temperature lowers,
Second heat-absorbing material becomes liquid again, falls in elastic membrane 5, continues reciprocating, radiating and cooling may be implemented.
Wherein, the second heat-absorbing material can be fire-fighting agent, once thermal runaway occurs for battery pack 10 as a result, fire-fighting agent can be with
Play the role of fire extinguishing.Fire-fighting agent can be the fire-fighting agent of solid, or the fire-fighting agent of liquid, such as: fire-fighting agent can be with
Selection for perfluor hexanone, however, the present invention is not limited thereto, fire-fighting agent can select suitable fire-fighting according to actual use situation
Agent.
Wherein, battery pack 10 can also include: multiple radiating pieces, and multiple radiating pieces are arranged in two adjacent battery cells
The outside of battery cell 2 between 2 and/or positioned at one end, that is to say, that radiating piece can be positioned only at two adjacent batteries
Between monomer 2, it can also be positioned only at the outside of the battery cell 2 positioned at one end, can also be arranged in simultaneously two adjacent
The outside of battery cell 2 between battery cell 2 and positioned at one end.Radiating piece has heat spreading function to battery cell 2, can be very
It radiates to battery pack 10 well, the purpose to cool down to battery cell 2 may be implemented, so as to realize to battery cell 2
Heat optimization, it is also possible to prevent battery pack 10, temperature is excessively high at work, so as to prevent the generation of fire, in turn
The safety in utilization of battery pack 10 can be promoted.
Wherein, multiple battery cells 2 are contained in battery accommodating chamber 81, and the first heat-absorbing material is contained in adjacent battery list
Between body 2, the first heat-absorbing material can carry out heat exchange, and the first heat-absorbing material body in temperature change with battery cell 2
Product is variable, it is to be understood that volume becomes larger the first heat-absorbing material when the temperature rises.Elastic membrane 5 covers battery accommodating chamber 81,
Elastic membrane 5 can be the good insulating polymer film (such as rubber material) of elasticity, and insulating polymer film can be according to reality
Applying working condition, selection insulation, elasticity preferably, have the material of certain structural strength and weatherability, setting in this way can be by
First heat-absorbing material is sealed in battery accommodating chamber 81, can prevent the first heat-absorbing material from directly contacting with air, so as to
Avoid the first heat-absorbing material thermo-oxidative ageing.
Also, it when the heated volume of the first heat-absorbing material becomes larger, by the volume change of high polymer elastic film 5, can release
The energy of the first heat-absorbing material is put, the pressure of battery pack 10 can be also discharged, so as to avoid battery pack 10 from producing at work
It is raw dangerous.Wherein, outer cover plate 6 is spaced apart setting with elastic membrane 5, and such setting can guarantee there is foot when the first heat-absorbing material is heated
Enough expansion spaces, it is understood that be that elastic membrane 5 has enough expansion spaces in expanded by heating.And outer cover plate 6 and support
1 phase of disk is fixed, and can be guaranteed that battery pack 10 has certain mechanical strength, can be promoted the security reliability of battery pack 10.
In addition, nitrogen or inert gas can be filled in battery accommodating chamber 81, battery accommodating chamber 81 is made to form gas-tight silo,
Starvation so as to reduce the generation of fire, and then can further promote the safety in utilization of battery pack 10 and reliable
Property.Meanwhile by the way that the first heat-absorbing material is arranged in battery accommodating chamber 81, the heat inside battery pack 10 can be further realized
Optimization, reduces the polarization of temperature, the transmission speed of heat sprawling can be reduced, and it is possible to pass through BMS (BATTERY
MANAGEMENT SYSTEM- battery management system) etc. devices induced cell packet 10 temperature change, can start automatically corresponding
Heat optimization program.
As a result, by multiple battery cells 2 being cancelled the setting form of mould group, multiple battery cells 2 are disposed directly at
In battery accommodating chamber 81, it is capable of increasing arrangement quantity of the battery cell 2 in battery accommodating chamber 81, battery pack 10 can be promoted
Energy density, so as to increase the electricity of battery pack 10.Moreover, by the way that radiating piece is arranged in two adjacent battery cells
The outside of battery cell 2 between 2 and/or positioned at one end can well radiate to battery pack 10, so as to realize
Heat optimization to battery cell 2.Also, first heat-absorbing material is sealed between adjacent battery cell 2 by elastic membrane 5,
It can prevent the first heat-absorbing material from directly contacting with air, so as to avoid the first heat-absorbing material thermo-oxidative ageing, can also release
The pressure of battery pack 10 is put, so as to promote the security reliability of battery pack 10.
Optionally, radiating piece can have the heat exchanger tube of medium for flowing, and the medium in heat exchanger tube can will be in battery pack 10
Heat take away, flat tube can be set into heat exchanger tube, moreover, the distance between the thickness of flat tube and two neighboring battery cell 2
It is unanimous on the whole, it can guarantee that flat tube is placed between two neighboring battery cell 2 in this way, flat tube and battery cell surface can also be made
It is preferably bonded, and then can preferably radiate to battery cell 2.Wherein, heat exchanger tube can be metal tube, such as: aluminum pipe, steel
Pipe etc..
Further, heat exchanger tube is also connected with inlet pipe and outlet pipe, that is to say, that heat exchanger tube is connected to inlet pipe and outlet pipe, support
Disk 1 includes internal perisporium 11 and periphery wall 12, and internal perisporium 11 limits battery accommodating chamber 81, and periphery wall 12 surrounds internal perisporium 11
Outside, and periphery wall 12 and internal perisporium 11 limit the cavity for accommodating inlet pipe and outlet pipe.Wherein, the medium in heat exchanger tube can
Heat exchanger tube is flowed into from inlet pipe, also can flow out heat exchanger tube from outlet pipe, the medium that can be formed in heat exchanger tube circulates, thus
Medium in heat exchanger tube can continuously take away the heat of battery pack 10, and then may be implemented excellent to the heat of battery pack 10
Change.
Specifically, insulating heat-conductive pad is equipped on the internal perisporium 11 of pallet 1, multiple battery cells 2 are arranged in insulating heat-conductive
On pad.Insulating heat-conductive pad have the function of insulation, it is thermally conductive, can prevent battery pack 10 leak electricity, it is ensured that the work of battery pack 10
The heat transfer generated when making safety, also, also battery pack 10 can work is to inlet pipe and outlet pipe, then in inlet pipe and outlet pipe
Medium heat is taken away, so as to further to battery pack 10 cool down.
Optionally, the first heat-absorbing material can be the thermally conductive of phase-change material perhaps conduction oil phase-change material or conduction oil
Performance is more preferable, also, by heat exchanger tube, the compound use of phase-change material and conduction oil, can be thermally conductive and heat dissipation work one
Step is completed, and so as to further promote the service performance of battery pack 10, and then can promote user satisfaction.
Further, as depicted in figs. 1 and 2, the lower part of elastic membrane 5, which is provided with, is used to support elastic membrane 5 and grid-shaped
Supporting element 7, the manufacture material of supporting element 7 can be the high molecular material of insulation, or do the height of insulation processing in surface
Molecular material can guarantee that supporting element 7 has enough support strengths, make so as to preferably play support to elastic membrane 5
With.In addition, supporting element 7 be arranged to it is latticed, when elastic membrane 5 expand when, supporting element 7 will not hinder elastic membrane 5 expand, so as to
To guarantee that elastic membrane 5 works normally.
Specifically, as shown in Figure 1, outer cover plate 6 is plugged on the top of pallet 1, such setting can be by outer cover plate 6 and pallet
1 connection it is relatively reliable, so as to promote the structural strength of battery pack 10, also, the manufacture material of outer cover plate 6 is preferably tied
The high metal of structure intensity, such as: aluminium, steel etc., in this way in the case where guaranteeing that outer cover plate 6 has higher-strength, it is also ensured that
Outer cover plate 6 has good thermal conductivity, so as to realize better heat dissipation.Wherein the top of pallet 1 refers to pallet 1 in Fig. 1
Top.
Optionally, as shown in Figure 1, one in outer cover plate 6 and pallet 1 is provided with connection-peg 13, and 6 He of outer cover plate
Another in pallet 1 is provided with inserting groove 61, and connection-peg 13 is plugged in inserting groove 61.It is to be understood that if inserting
Access slot 61 is arranged on outer cover plate 6, connection-peg 13 should be just arranged on pallet 1, if inserting groove 61 is arranged in pallet 1
On, connection-peg 13 should be just arranged on outer cover plate 6.The connected structure of such setting is simple, can simplify battery pack 10
Structure, also, the cooperation of connection-peg 13 and inserting groove 61 is simply, conveniently, and grafting operation can be made to be more easier.
Further, it is provided with inserting groove 61 on outer cover plate 6, connection-peg 13 is provided on pallet 1, inserting groove 61, which is located at, to be inserted
The lower end surface of the part of 13 inside of connector is only against in elastic membrane 5, can be made the battery cell 2 in battery pack 10 in this way, be supported
The position of part 7 and elastic membrane 5 is more fixed, so as to promote the overall structure stability of battery pack 10, and then can be into one
Step promotes the overall structural strength of battery pack 10.
Optionally, as shown in Figure 1, being provided with relief valve on outer cover plate 6, relief valve temperature in battery pack 10 reaches third
It is opened when preset temperature threshold values, relief valve has pressure release effect, when the pressure in battery pack 10 becomes larger, opens relief valve, can
So that the pressure in battery pack 10 lowers, the pressure balance of the pressure and external environment in battery pack 10 thereby may be ensured that,
And then can prevent due to the pressure in battery pack 10 it is excessive caused by explosion accident generation.
Relief valve herein is also possible to the relief valve of this field routine, herein with no restrictions.
Optionally, the first predetermined temperature threshold values is less than second temperature threshold values, and the temperature in battery accommodating chamber 81 is more than or equal to
When the first preset temperature threshold values, the first preset temperature threshold values can be between 30 DEG C -48 DEG C, also, in battery accommodating chamber 81
When temperature is less than second temperature threshold values, the first heat-absorbing material is heated to produce gas, and the pressure in battery accommodating chamber 81 increases, so that elastic
5 expand to cushion chamber 82, and 82 temperature of cushion chamber improves, and exchange heat by outer cover plate 6 and outside air, can reduce cushion chamber 82
Temperature, then the first heat-absorbing material returns to initial state, this process works without the second heat-absorbing material.
In addition, the second preset temperature threshold values can be when the temperature in battery accommodating chamber is greater than the second preset temperature threshold values
Between 49 DEG C -85 DEG C, the first heat-absorbing material and the second heat-absorbing material are heated to produce gas, the pressure in battery accommodating chamber 81 increase so that
Elastic membrane 5 is improved to the expansion of cushion chamber 82,82 temperature of cushion chamber, and the second heat-absorbing material is heated to produce gas, by outer cover plate 6 and the external world
Air heat-exchange can reduce the temperature of cushion chamber 82, and then the first heat-absorbing material and the second heat-absorbing material return to initial state, this mistake
The second heat-absorbing material works in journey.
Further, the second preset temperature threshold values is less than third preset temperature threshold values, and the temperature in battery accommodating chamber 81 is big
When third preset temperature threshold values, third preset temperature threshold values can be for more than or equal to 86 DEG C, the first heat-absorbing material and second be inhaled
Hot material is heated to produce gas, at this point, being only unable to control 8 internal temperature of shell by outer cover plate 6 and outside air heat exchange, largely
Gas causes battery accommodating chamber 81,82 pressure of cushion chamber to increase, and relief valve is opened on outer cover plate 6, and elastic membrane 5 ruptures, and second inhales
Hot material flows into battery accommodating chamber 81 and puts out a fire, it is ensured that the safety in utilization of battery pack 10.
Further, as shown in figure 3, outer cover plate may include: body part 62 and pressure release portion 63, pressure release portion 63 and body part
62 are connected, and when temperature reaches third preset temperature threshold values in battery pack 10, pressure release portion 63 separated with body part 62 or
Person's rupture, so as to play the role of pressure release, and then can further prevent battery pack 10 to generate explosion in use.
Specifically, as shown in figure 3, the thickness in pressure release portion 63 is less than the thickness of body part 62, such as: the thickness of body part 62
Degree can be more than or equal to the thickness in two times of pressure release portion 63, and the ability of the receiving pressure of body part 62 bears to press than pressure release portion 63
The ability of power is strong, when pressure reaches predetermined value in battery pack 10, pressure release portion 63 can bear pressure incessantly at this time and rupture or
Person separates with body part 62, and being arranged such can better ensure that pressure release portion 63 meets work requirements as a result, thereby may be ensured that
The pressure release work of battery pack 10 smoothly completes.Wherein, pressure release portion 63 can be identical with the manufacture material of body part 62, can also
It can prevent from sending out with pressure release under pressure as long as pressure release portion 63 and body part 62 take certain connection type with difference
It is raw dangerous.
Optionally, body part 62 and pressure release portion 63 are welded to connect, when pressure reaches predetermined value in battery pack 10, body part
62 just will crack with the weld in pressure release portion 63, separate body part 62 with pressure release portion 63, so as to realize the work of pressure release,
And then it can further promote the job security of battery pack 10.Vehicle according to an embodiment of the present invention, including above-described embodiment
Battery pack 10, battery pack 10 setting is installed on vehicle, which is capable of increasing the electricity of battery pack 10, can be vehicle
More electric energy are provided, so as to extend the operating range of vehicle.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (17)
1. a kind of battery pack characterized by comprising
Shell, the inner hollow of the shell；
Elastic membrane, elastic membrane setting is in the enclosure interior and the enclosure interior space is divided into battery accommodating chamber eases up
Chamber is rushed, the cushion chamber is located at the top of the battery accommodating chamber；
Wherein, the first heat-absorbing material is accommodated in the battery accommodating chamber, first heat-absorbing material is in the first predetermined temperature valve
Value is heated to produce gas；
Battery, the battery are located in the battery accommodating chamber.
2. battery pack according to claim 1, which is characterized in that accommodate the second heat-absorbing material, institute in the cushion chamber
The second heat-absorbing material is stated in the heated production gas of the second preset temperature threshold values.
3. battery pack according to claim 2, which is characterized in that the first predetermined temperature threshold values is less than second temperature
Bottom valve value；
When temperature in the battery accommodating chamber is more than or equal to the first preset temperature threshold values, first heat-absorbing material is heated
Produce gas；
When temperature in the battery accommodating chamber is greater than the second preset temperature threshold values, the first heat-absorbing material and described second is inhaled
Hot material is heated to produce gas.
4. battery pack according to claim 2, which is characterized in that the shell includes: pallet and outer cover plate, the elasticity
Film is arranged in the pallet, and the space in the pallet below the elastic membrane is the battery accommodating chamber；
The outer cover plate is spaced apart with the elastic membrane and mutually fixes with the pallet, the pallet, the outer cover plate and described
The space that elastic membrane limits is the cushion chamber.
5. battery pack according to claim 4, which is characterized in that be provided with relief valve, the pressure release on the outer cover plate
Opening when valve temperature in the battery pack reaches third preset temperature threshold values.
6. battery pack according to claim 5, which is characterized in that it is pre- that the second preset temperature threshold values is less than the third
If threshold temperature；
When temperature in the battery accommodating chamber is greater than the third preset temperature threshold values, first heat-absorbing material and described the
Two heat-absorbing materials are heated to produce gas, and the relief valve on the outer cover plate is opened.
7. battery pack according to claim 4, which is characterized in that the outer cover plate includes: body part and pressure release portion, described
When pressure release portion is connected with the body part and temperature reaches third preset temperature threshold values in the battery pack rupture or with it is described
Body part from.
8. battery pack according to claim 7, which is characterized in that the thickness in the pressure release portion is less than the thickness of the body part
Degree.
9. battery pack according to claim 7, which is characterized in that the body part and the pressure release portion are welded to connect.
10. battery pack according to claim 2, which is characterized in that second heat-absorbing material is fire-fighting agent.
11. battery pack according to claim 3, which is characterized in that the outer cover plate is plugged on the top of the pallet.
12. battery pack according to claim 11, which is characterized in that be provided with inserting groove, the support on the outer cover plate
Connection-peg is provided on disk, the lower end surface that the inserting groove is located at the part on the inside of the connection-peg is only against the elastic membrane
On.
13. battery pack according to claim 1, which is characterized in that the lower part of the elastic membrane, which is provided with, is used to support institute
State elastic membrane and grid-shaped supporting element.
14. battery pack according to claim 1, which is characterized in that the battery includes multiple battery cells, the multiple
Battery cell is contained in the battery accommodating chamber, and first heat-absorbing material is contained between the adjacent battery cell.
15. battery pack according to claim 14, which is characterized in that further include: multiple radiating pieces, multiple radiating pieces
The outside of the battery cell between two adjacent battery cells and/or positioned at one end is set.
16. battery pack according to claim 1, which is characterized in that first heat-absorbing material is phase-change material or thermally conductive
Oil.
17. a kind of vehicle, which is characterized in that including battery pack described according to claim 1 any one of -16.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432882.9A CN109962190B (en) | 2017-12-26 | 2017-12-26 | Battery pack and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432882.9A CN109962190B (en) | 2017-12-26 | 2017-12-26 | Battery pack and vehicle |
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| CN109962190B CN109962190B (en) | 2021-03-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111725454A (en) * | 2020-06-12 | 2020-09-29 | 上汽通用汽车有限公司 | Battery module and battery pack assembly |
| CN111912268A (en) * | 2020-07-23 | 2020-11-10 | 浙江南都电源动力股份有限公司 | Heat pipe with heat conduction and fire control functions |
| CN112467266A (en) * | 2020-11-30 | 2021-03-09 | 惠州市恒泰科技股份有限公司 | Preparation method of steel shell button cell and steel shell button cell |
| CN112665678A (en) * | 2020-12-28 | 2021-04-16 | 湖北亿纬动力有限公司 | Battery gas production amount measuring device and battery gas production amount measuring method |
| CN114179639A (en) * | 2021-12-22 | 2022-03-15 | 镇江市高等专科学校 | Energy storage battery pack with heat radiation structure |
| CN114464918A (en) * | 2022-01-18 | 2022-05-10 | 苏州清陶新能源科技有限公司 | Battery pack |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107731A (en) * | 2005-03-25 | 2008-01-16 | 株式会社Lg化学 | Small battery pack having frame retardant adhesive member |
| CN104009196A (en) * | 2013-02-26 | 2014-08-27 | 罗伯特·博世有限公司 | Equipment for protecting drain valve, support element, storage battery electric core, and storage battery |
| JP2014216113A (en) * | 2013-04-24 | 2014-11-17 | 日立オートモティブシステムズ株式会社 | Power storage module |
| CN104241565A (en) * | 2014-07-30 | 2014-12-24 | 浙江超威创元实业有限公司 | Lithium battery provided with fire-proof and explosion-proof device and electric car adopting battery |
| CN105679976A (en) * | 2014-11-21 | 2016-06-15 | 北京长城华冠汽车科技有限公司 | Battery box |
| CN205985149U (en) * | 2016-07-29 | 2017-02-22 | 惠州比亚迪实业有限公司 | Compound explosion -proof valve, apron subassembly and battery |
| CN107078231A (en) * | 2014-05-21 | 2017-08-18 | 赛美西有限公司 | Passive isolated material |
-
2017
- 2017-12-26 CN CN201711432882.9A patent/CN109962190B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107731A (en) * | 2005-03-25 | 2008-01-16 | 株式会社Lg化学 | Small battery pack having frame retardant adhesive member |
| CN104009196A (en) * | 2013-02-26 | 2014-08-27 | 罗伯特·博世有限公司 | Equipment for protecting drain valve, support element, storage battery electric core, and storage battery |
| JP2014216113A (en) * | 2013-04-24 | 2014-11-17 | 日立オートモティブシステムズ株式会社 | Power storage module |
| CN107078231A (en) * | 2014-05-21 | 2017-08-18 | 赛美西有限公司 | Passive isolated material |
| CN104241565A (en) * | 2014-07-30 | 2014-12-24 | 浙江超威创元实业有限公司 | Lithium battery provided with fire-proof and explosion-proof device and electric car adopting battery |
| CN105679976A (en) * | 2014-11-21 | 2016-06-15 | 北京长城华冠汽车科技有限公司 | Battery box |
| CN205985149U (en) * | 2016-07-29 | 2017-02-22 | 惠州比亚迪实业有限公司 | Compound explosion -proof valve, apron subassembly and battery |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111725454A (en) * | 2020-06-12 | 2020-09-29 | 上汽通用汽车有限公司 | Battery module and battery pack assembly |
| CN111725454B (en) * | 2020-06-12 | 2022-11-22 | 上汽通用汽车有限公司 | Battery module and battery pack assembly |
| CN111912268A (en) * | 2020-07-23 | 2020-11-10 | 浙江南都电源动力股份有限公司 | Heat pipe with heat conduction and fire control functions |
| CN112467266A (en) * | 2020-11-30 | 2021-03-09 | 惠州市恒泰科技股份有限公司 | Preparation method of steel shell button cell and steel shell button cell |
| CN112467266B (en) * | 2020-11-30 | 2023-12-19 | 惠州市恒泰科技股份有限公司 | Preparation method of steel shell button cell and steel shell button cell |
| CN112665678A (en) * | 2020-12-28 | 2021-04-16 | 湖北亿纬动力有限公司 | Battery gas production amount measuring device and battery gas production amount measuring method |
| CN114179639A (en) * | 2021-12-22 | 2022-03-15 | 镇江市高等专科学校 | Energy storage battery pack with heat radiation structure |
| CN114464918A (en) * | 2022-01-18 | 2022-05-10 | 苏州清陶新能源科技有限公司 | Battery pack |
| CN114464918B (en) * | 2022-01-18 | 2023-11-14 | 苏州清陶新能源科技有限公司 | Battery pack |
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| CN109962190B (en) | 2021-03-26 |
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Effective date of registration: 20211208 Address after: 402761 No. 8, Hufeng Avenue, Qinggang street, Bishan District, Chongqing Patentee after: Chongqing Fudi Battery Research Institute Co.,Ltd. Address before: 518118 BYD Road, Pingshan New District, Shenzhen, Guangdong 3009 Patentee before: BYD Co.,Ltd. |
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