CN110444835A - Battery pack and vehicle - Google Patents
Battery pack and vehicle Download PDFInfo
- Publication number
- CN110444835A CN110444835A CN201910810366.8A CN201910810366A CN110444835A CN 110444835 A CN110444835 A CN 110444835A CN 201910810366 A CN201910810366 A CN 201910810366A CN 110444835 A CN110444835 A CN 110444835A
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- China
- Prior art keywords
- heat
- upper housing
- heat dissipation
- battery core
- dissipation channel
- Prior art date
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- Granted
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims description 30
- 238000009434 installation Methods 0.000 claims description 24
- 238000009413 insulation Methods 0.000 claims description 15
- 230000008719 thickening Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000005611 electricity Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch 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
- H01M10/655—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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6562—Gases with free flow by convection only
-
- 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
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- 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
- 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)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of battery pack and vehicles.The battery pack includes: shell, has multiple mounting grooves and heat dissipation channel in the shell, and the mounting groove is connected to the heat dissipation channel；Multiple battery core groups, the battery core group are installed in the mounting groove；Explosion-proof valve, the explosion-proof valve are suitable for being connected to the heat dissipation channel and the external world.Battery pack according to the present invention is installed in multiple mounting grooves by multiple battery core groups, and multiple mounting grooves are connected to heat dissipation channel, may be implemented to hot-fluid to water conservancy diversion, prevent hot sprawling to greatest extent, slow down the risk of explosion on fire, the loss of thermal runaway is reduced simultaneously, reduces maintenance cost.
Description
Technical field
The present invention relates to automotive fields, in particular to a kind of battery pack and vehicle.
Background technique
As country widelys popularize new energy field, electric car has become following main trend, pursues high
Energy density then becomes the research mainstream of power battery.But the very high security risk of high-energy density simultaneous, heat are lost
Control and heat sprawling cause explosion, situation on fire to take place frequently.
Thermal isolation is carried out by increasing heat-barrier material between battery core currently on the market, heat-barrier material is only capable of slowing down battery core
Between heat transfer, but after a battery core thermal runaway, heat-barrier material can not effectively completely cut off the high heat of ejection, high-energy electricity
Liquid is solved, causes heat sprawling serious.
Summary of the invention
In view of this, the present invention is directed to propose a kind of battery pack, to carry out water conservancy diversion to hot-air, and prevents hot sprawling.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of battery pack includes: shell, has multiple mounting grooves and heat dissipation channel, the mounting groove and institute in the shell
State heat dissipation channel connection；Multiple battery core groups, the battery core group are installed in the mounting groove；Explosion-proof valve, the explosion-proof valve are suitable for
It is connected to the heat dissipation channel and the external world.
According to some embodiments of the present invention, the shell includes: lower case；Upper housing, the upper housing and it is described under
Shell cooperation limits installation space；At least one crossbeam, the crossbeam are set in the installation space, the two neighboring cross
The mounting groove, at least one end tool of the crossbeam are limited between beam or between the crossbeam and the side bar of the lower case
There is evacuation notch, limits the heat dissipation channel between the evacuation notch and the upper housing.
Further, the week of the upper housing is with the side bar by fastener along being connected, the upper housing week edge with
The first heat-insulating and sealing part is equipped between the side bar, the upper housing is connected with the crossbeam by fastener, the upper housing
The second heat-insulating and sealing part is equipped between the crossbeam.
Further, the upper surface of the upper housing has holding tank, and the fastener connects the slot bottom of the holding tank
At least part of wall and the crossbeam, the nut of the fastener is located in the holding tank, and the week of the upper housing is along folding
Curved to be arranged to form recess portion, the holding tank is connected to the recess portion, and in the vertical direction, the minimum point of the recess portion is lower than
The minimum point of the holding tank.
Further, the lower surface on all edges of the upper housing is equipped with downwardly projecting thickening part, the thickening part and institute
State lower case side bar sealing cooperation, the thickening part be surrounded on the outside of the first heat-insulating and sealing part with to described first every
Heat seal is limited.
According to some embodiments of the present invention, the lower surface of the upper housing is equipped with downwardly projecting installation protrusion, described
It is corresponding with the position of the holding tank that protrusion is installed, the installation protrusion and crossbeam sealing cooperate, the installation protrusion tool
There is cabling notch.
According to some embodiments of the present invention, the upper housing includes: upper casing ontology；Heat-insulating layer, it is described heat-insulated exhausted
Edge layer is set to the side towards the battery core group of the upper casing ontology.
According to some embodiments of the present invention, the battery core group includes: stacking end plate, and the stacking end plate is by the installation
Slot is divided into the first sub- mounting groove and the second sub- mounting groove；Multiple battery cores, the stacking of battery core described in a portion are set to described
The side of end plate is stacked, battery core described in another part, which stacks, is set to the other side for stacking end plate；Clamp end plate, the folder
It holds end plate and is set to the both ends for stacking multiple battery cores of setting, the heat dissipation channel is two and respectively the first heat dissipation channel
With the second heat dissipation channel, the first sub- mounting groove is connected to first heat dissipation channel, the second sub- mounting groove with it is described
The connection of second heat dissipation channel.
Further, between the two neighboring battery core, between the clamping end plate and the battery core, the battery core and institute
It states and is equipped with first thermal insulation layer at least one stacked between end plate, second thermal insulation layer is equipped between the battery core and the crossbeam,
At least one of the first thermal insulation layer and the second thermal insulation layer include: insulated body；Heat-insulated frame, the heat-insulated frame
It is arranged around the insulated body, the degree of compressibility of the heat-insulated frame is lower than the degree of compressibility of the insulated body.
Compared with the existing technology, battery pack of the present invention has the advantage that
It is installed in multiple mounting grooves by multiple battery core groups, and multiple mounting grooves are connected to heat dissipation channel, may be implemented
To hot-fluid to water conservancy diversion, prevent hot sprawling to greatest extent, slow down the risk of explosion on fire, while reducing the loss of thermal runaway, drop
Low maintenance cost.
It is another object of the present invention to propose a kind of vehicle, the battery pack including above-described embodiment.
Compared with the existing technology, vehicle of the present invention have the advantage that had the advantage that with battery pack it is identical, here
It repeats no more.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the battery pack of the embodiment of the present invention；
Fig. 2 is the top view of the battery pack of the embodiment of the present invention；
Fig. 3 is the cross-sectional view of the battery pack of the embodiment of the present invention；
Fig. 4 is that Fig. 3 centre circle shows enlarged structure schematic diagram at A；
Fig. 5 is that Fig. 3 centre circle shows enlarged structure schematic diagram at B；
Fig. 6 is the schematic diagram of an angle of the upper housing of the battery pack of the embodiment of the present invention；
Fig. 7 is that Fig. 6 centre circle shows enlarged structure schematic diagram at C；
Fig. 8 is the schematic diagram of another angle of the upper housing of the battery pack of the embodiment of the present invention；
Fig. 9 is that Fig. 8 centre circle shows enlarged structure schematic diagram at D；
Figure 10 is the cross-sectional view of the upper housing of the battery pack of the embodiment of the present invention；
Figure 11 is that Figure 10 centre circle shows enlarged structure schematic diagram at E；
Figure 12 is the exploded view of the battery core group of the battery pack of the embodiment of the present invention；
Figure 13 is the structural representation of the first heat-insulating and sealing part and the second heat-insulating and sealing part of the battery pack of the embodiment of the present invention
Figure.
Description of symbols:
Battery pack 100,
Shell 2, installation space 201, mounting groove 202, the first sub- mounting groove 202a, the second sub- mounting groove 202b, heat dissipation are logical
Road 203, the first heat dissipation channel 203a, the second heat dissipation channel 203b, side bar 22, lower case 23, crossbeam 24, evacuation notch 241, on
Shell 25, installation protrusion 251, holding tank 252, recess portion 253, thickening part 254, cabling notch 255, upper casing ontology 256, it is heat-insulated absolutely
Edge layer 257,
Battery core group 4, clamping end plate 42, stacks end plate 43, first thermal insulation layer 44, second thermal insulation layer 45, heat-insulated master at battery core 41
Body 46, heat-insulated frame 47,
Explosion-proof valve 6, the first heat-insulating and sealing part 61, the second heat-insulating and sealing part 62.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Come that the present invention will be described in detail below with reference to Fig. 1-Figure 13 and in conjunction with the embodiments.
Shown in referring to Fig.1, battery pack 100 according to an embodiment of the present invention includes: shell 2, multiple battery core groups 4 and explosion-proof valve
6。
Specifically, having multiple mounting grooves 202 and heat dissipation channel 203, mounting groove 202 and heat dissipation channel 203 in shell 2
Connection, battery core group 4 are installed in mounting groove 202, and explosion-proof valve 6 can be connected to heat dissipation channel 203 and the external world.Optionally, explosion-proof valve 6
The outlet end of heat dissipation channel 203 can be arranged in.
Multiple mounting grooves 202 are spaced apart as a result, form independent space, so that multiple battery core groups 4 are spaced apart, Mei Ge electricity
The heat generated in 4 course of work of core group can enter in heat dissipation channel 203 along mounting groove 202, then pass through 6 row of explosion-proof valve
Out.
The setting of multiple mounting grooves 202 and heat dissipation channel 203 realize to hot-fluid to water conservancy diversion, battery pack is discharged in time
100, the heat conduction between battery core group 4 is reduced, even if thermal runaway, the cell wall of mounting groove 202 occur for one of battery core group 4
High heat, the high-energy electrolyte that ejection can be completely cut off, prevent hot sprawling to greatest extent, slow down the risk of explosion on fire, simultaneously
Lead to the thermal runaway of other battery core groups 4 when being also prevented from one of 4 thermal runaway of battery core group, reduces loss.
Battery pack 100 according to an embodiment of the present invention is installed in multiple mounting grooves 202 by multiple battery core groups 4, and more
A mounting groove 202 is connected to heat dissipation channel 203, may be implemented to hot-fluid to water conservancy diversion, prevent hot sprawling to greatest extent, slowed down
Hot fried risk, while the loss of thermal runaway is reduced, reduce maintenance cost.
According to some embodiments of the present invention, such as Fig. 1 and Fig. 2, shell 2 includes: lower case 23, upper housing 25 and at least one
A crossbeam 24.Upper housing 25 and the cooperation of lower case 23 limit installation space 201, and crossbeam 24 is set in installation space 201, will
Installation space 201 is separated into multiple mounting grooves 202, for example, between two neighboring crossbeam 24 or crossbeam 24 and lower case 23
Mounting groove 202 is limited between side bar 22.Crossbeam 24 can separate two neighboring mounting groove 202 as a result, climing to prevent heat
Prolong, while the hot-fluid in mounting groove 202 being guided in heat dissipation channel 203, diversion effect is stablized.
In addition, as shown in Figure 3 and Figure 4, at least one end of crossbeam 24 has evacuation notch 241, notch 241 and upper casing are avoided
Heat dissipation channel 203 is limited between body 25, keeps the flow area of heat dissipation channel 203 bigger, guarantees heat dissipation patency, and then guarantee
Hot gas is smoothly discharged according to design route.
Further, as shown in figure 4, the week edge of upper housing 25 can be connected with side bar 22 by fastener, and upper casing
Body 25 week along between side bar 22 be equipped with the first heat-insulating and sealing part 61, as shown in Figure 5-Figure 7, upper housing 25 passes through with crossbeam 24
Fastener is connected, and the second heat-insulating and sealing part 62 is equipped between upper housing 25 and crossbeam 24.First heat-insulating and sealing part 61 and
Two heat-insulating and sealing parts 62 have leakproofness and thermal insulation, it may have higher temperature tolerances, and ensure that multiple mounting grooves 202
Partition effect, battery core group 4 occur thermal runaway after, can effectively completely cut off the flowing of hot-air between battery core group 4.
In further embodiment of the present invention, as shown in Fig. 5, Fig. 8 and Fig. 9, the upper surface of upper housing 25, which has, to be accommodated
Slot 252, fastener can connect the groove bottom wall and crossbeam 24 of holding tank 252, and at least part position of the nut of fastener
In in holding tank 252.The week of upper housing 25 is arranged along bending to form recess portion 253, and fastener can connect the bottom wall of recess portion 253
With the side bar 22 of lower case 23, and at least part of the nut of fastener is located in recess portion 253.Thus, it is possible to reduce tight
Firmware protrudes from the height of the upper surface of upper housing 25, or the upper surface for making fastener not protrude from upper housing 25 completely, has
Conducive to the height for reducing battery pack 100, more compact structure.
In addition, holding tank 252 is connected to recess portion 253, and in the vertical direction referring to shown in Fig. 8 and Fig. 9, recess portion 253
Minimum point be lower than holding tank 252 minimum point.The minimum point of recess portion 253 is the minimum point of upper housing 25, holding tank as a result,
Liquid in 252 can flow in recess portion 253, and be discharged by recess portion 253, prevent 25 hydrops of upper housing, be also prevented from liquid by
The mounting hole of fastener, which flows into mounting groove 202, causes battery core group 4 short-circuit.
Further, referring to shown in Fig. 4, Figure 10 and Figure 11, the lower surface on all edges of upper housing 25 is equipped with downwardly projecting
Thickening part 254, one side thickening part 254 can increase the structural strength of upper housing 25, and on the other hand, thickening part 254 can be with
It seals and cooperates with the side bar 22 of lower case 23, to increase sealing area, improve sealing effect.
In addition, as shown in figure 4, thickening part 254 can be surrounded on the in the embodiment for being equipped with the first heat-insulating and sealing part 61
The outside of one heat-insulating and sealing part 61 keeps the first heat-insulating and sealing part 61 more steady to limit to the first heat-insulating and sealing part 61
Surely it is located between upper housing 25 and side bar 22, prevents the first heat-insulating and sealing part 61 from dislocation or offset occurs and influences sealing
Effect.
In some embodiments of the invention, as shown in Figure 5-Figure 7, the lower surface of upper housing 25 can be equipped with downwardly projecting
Installation protrusion 251, installation protrusion 251 it is corresponding with the position of holding tank 252, installation protrusion 251 and crossbeam 24 seal cooperation, example
Such as in the embodiment for being equipped with the second heat-insulating and sealing part 62, the second heat-insulating and sealing part 62 can be located in installation protrusion 251 and cross
Between beam 24, guarantee sealing effect.Also, the lower surface that installation protrusion 251 can be upper housing 25 is formed with depressed section, recessed
Concave portion point is spaced apart with the upper surface of battery core group 4, so that the hot-air in mounting groove 202 can be more swimmingly by mounting groove 202
It flows into heat dissipation channel 203, improves heat dissipation effect.
In addition, as shown in fig. 6, installation protrusion 251 can have cabling notch 255, so that the company between different battery core groups 4
Line or busbar connector etc. can pass through cabling notch 255, make connecting line construction not and influence to install close between protrusion 251 and crossbeam 24
Envelope.
According to some embodiments of the present invention, as shown in Figure 10 and Figure 11, upper housing 25 may include: upper casing ontology 256
With heat-insulating layer 257, heat-insulating layer 257 is set to the side towards battery core group 4 of upper casing ontology 256, heat-insulating layer 257
It can prevent heat from conducting outward by upper housing 25 to improve with high temperature resistant, insulation.
Optionally, upper casing ontology 256 can be heat-resisting material, such as, but not limited to steel.Optionally, heat-insulating layer
257 can be sprayed on material, such as fire resistant coating, ceramic particle, mica particles etc., or be and 256 composite integrated of upper casing ontology
Material, such as ceramic layer, mica layer.
According to some embodiments of the present invention, as depicted in figure 5 and figure 12, battery core group 4 may include: to stack end plate 43, more
A battery core 41 and clamping end plate 42.Wherein, mounting groove 202 can be divided into first sub- mounting groove 202a and the by stacking end plate 43
Two sub- mounting groove 202b, a portion battery core 41 stack the side for being set to and stacking end plate 43, and another part battery core 41 stacks
It is set to the other side for stacking end plate 43, clamping end plate 42 is set to the both ends for stacking multiple battery cores 41 of setting.Such as Fig. 2 and Fig. 3
Shown, heat dissipation channel 203 is two and respectively the first heat dissipation channel 203a and the second heat dissipation channel 203b, the first sub- mounting groove
202a is connected to the first heat dissipation channel 203a, and the second sub- mounting groove 202b is connected to the second heat dissipation channel 203b.
The heat and the electricity in the second sub- mounting groove 202b for being located at the battery core 41 in the first sub- mounting groove 202a as a result,
The heat of core 41 can flow in direction to the two sides for stacking end plate 43 as shown by the arrows in Figure 2, and then have the first heat dissipation logical respectively
Road 203a and the second heat dissipation channel 203b discharge, multi-channel cooling can significantly improve heat dissipation effect.
In addition, in process of production, multiple battery cores 41 can stack centered on stacking end plate 43 to both sides, solves electricity
When 41 quantity of core is more, 4 length of battery core group is longer, it is not easy to control with balanced problem to stack power, has both realized long battery core group 4
Assembly, and can guarantee to control and rationally stack power section, it can also be ensured that the equilibrium in gap between multiple battery cores 41.
It should be noted that Fig. 2 show the top view of battery pack 100, arrow show the flow path of hot-air, by
Upper housing 25 is shown in Fig. 2, therefore, the label of mounting groove 202 and heat dissipation channel 203 indicates to be located at upper housing 25 in Fig. 2
Lower section space
Optionally, as shown in Figure 5 and Figure 6, the holding tank 252 of upper housing 25 and installation protrusion 251 can be with stacking end plates
43 is corresponding, and is connect with end plate 43 is stacked by fastener, to increase connection site, improves connection reliability.And it installs
The second heat-insulating and sealing part 62 can be equipped between protrusion 251 and stacking end plate 43, to realize the first sub- mounting groove 202a and second
The isolation of sub- mounting groove 202b seals, and improves solar heat protection and spreads effect.
Further, as shown in figure 12, between two neighboring battery core 41, between clamping end plate 42 and battery core 41, battery core 41
Stack between end plate 43 at least one at can be equipped with first thermal insulation layer 44, be equipped between battery core 41 and crossbeam 24 second heat-insulated
Layer 45, so that the peripheric surface of battery core group 4 completely cuts off heat, the bottom surface of battery core group 4 is for heating and cooling down, it is possible to reduce battery core 41
Between heat influence, inhibit heat sprawling.
In some embodiments, as shown in figure 13, at least one of first thermal insulation layer 44 and second thermal insulation layer 45 can be with
It include: pressing for insulated body 46 and heat-insulated frame 47, the circular setting of insulated body 46 of heat-insulated frame 47, and heat-insulated frame 47
Contracting degree is lower than the degree of compressibility of insulated body 46.
Heat-insulated frame 47 can satisfy stacking absorption tolerance effect as a result, and can limit battery core 41 in charge and discharge process
Middle relative displacement is excessive, and insulated body 46 then can effectively completely cut off heat transfer, and compressibility is larger, swollen to provide in the middle part of battery core 41
Swollen space.
Optionally, heat-insulated frame 47 can be compressibility less material, such as, but not limited to silicon rubber frame；Insulated body 46
Can be for heat-barrier material but compressibility is larger, such as, but not limited to aerogel blanket.
The vehicle of embodiment according to a further aspect of the invention, the battery pack 100 including above-described embodiment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of battery pack (100) characterized by comprising
Shell (2), has multiple mounting grooves (202) and heat dissipation channel (203) in the shell (2), the mounting groove (202) and
Heat dissipation channel (203) connection；
Multiple battery core groups (4), the battery core group (4) are installed in the mounting groove (202)；
Explosion-proof valve (6), the explosion-proof valve (6) are suitable for being connected to the heat dissipation channel (203) and the external world.
2. battery pack (100) according to claim 1, which is characterized in that the shell (2) includes:
Lower case (23)；
Upper housing (25), the upper housing (25) and the lower case (23) cooperation limit installation space (201)；
At least one crossbeam (24), the crossbeam (24) are set in the installation space (201), the two neighboring crossbeam (24)
Between or the crossbeam (24) and the side bar (22) of the lower case (23) between limit the mounting groove (202),
At least one end of the crossbeam (24), which has, avoids notch (241), the evacuation notch (241) and the upper housing (25)
Between limit the heat dissipation channel (203).
3. battery pack (100) according to claim 2, which is characterized in that all edges and the side of the upper housing (25)
Beam (22) by fastener be connected, the upper housing (25) week along between the side bar (22) be equipped with the first heat-insulating and sealing part
(61), the upper housing (25) is connected with the crossbeam (24) by fastener, the upper housing (25) and the crossbeam (24)
Between be equipped with the second heat-insulating and sealing part (62).
4. battery pack (100) according to claim 3, which is characterized in that the upper surface of the upper housing (25), which has, to hold
It receives slot (252), the fastener connects the groove bottom wall and the crossbeam (24) of the holding tank (252), the spiral shell of the fastener
At least part of cap is located in the holding tank (252), and the week of the upper housing (25) is arranged along bending to form recess portion
(253), the holding tank (252) is connected to the recess portion (253), and in the vertical direction, the minimum point of the recess portion (253)
Lower than the minimum point of the holding tank (252).
5. battery pack (100) according to claim 4, which is characterized in that the lower surface on all edges of the upper housing (25)
Equipped with downwardly projecting thickening part (254), the side bar (22) of the thickening part (254) and the lower case (23), which seals, to be cooperated,
The thickening part (254) be surrounded on the outside of the first heat-insulating and sealing part (61) with to the first heat-insulating and sealing part (61) into
Row limit.
6. battery pack (100) according to claim 4, which is characterized in that the lower surface of the upper housing (25) be equipped with to
The installation protrusion (251) of lower protrusion, installation protrusion (251) is corresponding with the position of the holding tank (252), and the installation is convex
Portion (251) and the crossbeam (24) sealing cooperate, and the installation protrusion (251) has cabling notch (255).
7. battery pack (100) according to claim 2, which is characterized in that the upper housing (25) includes:
Upper casing ontology (256)；
Heat-insulating layer (257), the heat-insulating layer (257) be set to the upper casing ontology (256) towards the battery core group
(4) side.
8. the battery pack (100) according to any one of claim 2-7, which is characterized in that the battery core group (4) includes:
Stack end plate (43), the stacking end plate (43) by the mounting groove (202) be divided into the first sub- mounting groove (202a) and
Second sub- mounting groove (202b)；
Multiple battery cores (41), battery core (41) described in a portion, which stacks, is set to the side for stacking end plate (43), another
The part battery core (41), which stacks, is set to the other side for stacking end plate (43)；
It clamping end plate (42), clamping end plate (42) is set to the both ends for stacking multiple battery cores (41) of setting,
The heat dissipation channel (203) is two and respectively the first heat dissipation channel (203a) and the second heat dissipation channel (203b), institute
The first sub- mounting groove (202a) is stated to be connected to first heat dissipation channel (203a), the second sub- mounting groove (202b) with it is described
Second heat dissipation channel (203b) connection.
9. battery pack (100) according to claim 8, which is characterized in that between the two neighboring battery core (41), described
It is set between clamping end plate (42) and the battery core (41), at the battery core (41) and at least one stacked between end plate (43)
Have first thermal insulation layer (44), be equipped with second thermal insulation layer (45) between the battery core (41) and the crossbeam (24),
At least one of the first thermal insulation layer (44) and the second thermal insulation layer (45) include:
Insulated body (46)；
Heat-insulated frame (47), the heat-insulated frame (47) are arranged around the insulated body (46), the heat-insulated frame (47)
Degree of compressibility is lower than the degree of compressibility of the insulated body (46).
10. a kind of vehicle, which is characterized in that including battery pack according to claim 1 to 9 (100).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910810366.8A CN110444835B (en) | 2019-08-29 | 2019-08-29 | Battery pack and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910810366.8A CN110444835B (en) | 2019-08-29 | 2019-08-29 | Battery pack and vehicle |
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| CN110444835A true CN110444835A (en) | 2019-11-12 |
| CN110444835B CN110444835B (en) | 2021-07-20 |
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| CN201910810366.8A Active CN110444835B (en) | 2019-08-29 | 2019-08-29 | Battery pack and vehicle |
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Address after: No.8899 Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: SVOLT Energy Technology Co.,Ltd. Address before: 213200 168 Huacheng Road, Jintan District, Changzhou, Jiangsu Patentee before: SVOLT Energy Technology Co.,Ltd. |