CN108574077A - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN108574077A CN108574077A CN201810698009.2A CN201810698009A CN108574077A CN 108574077 A CN108574077 A CN 108574077A CN 201810698009 A CN201810698009 A CN 201810698009A CN 108574077 A CN108574077 A CN 108574077A
- Authority
- CN
- China
- Prior art keywords
- partition board
- liquid cooling
- battery pack
- cooling plate
- connected domain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 143
- 238000005192 partition Methods 0.000 claims abstract description 96
- 238000001816 cooling Methods 0.000 claims description 108
- 238000005452 bending Methods 0.000 claims description 24
- 230000003287 optical effect Effects 0.000 claims description 16
- 239000003292 glue Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000035882 stress Effects 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
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- 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
- H01M10/6567—Liquids
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention provides a kind of battery packs, including：Box assembly, the box assembly have an accommodating space；Partition board is located in the box assembly, so that the accommodating space is divided into the first connected domain and the second connected domain, first connected domain and second connected domain are mutual indepedent；Battery modules are located in first connected domain；And liquid cooled module, it is located in second connected domain, the liquid cooled module carries out heat transfer with the battery modules by the partition board.Battery pack provided by the invention increases the reliability of battery pack.
Description
Technical field
The present invention relates to electric vehicles, specifically, being related to battery pack.
Background technology
At present in liquid cooling battery pack, battery modules, BMS (battery management system, BATTERY MANAGEMENT
SYSTEM), harness, cooling system etc. typically each battery pack babinet constitute connected domain within, and battery modules usually with it is cold
But heat conduction portion (such as liquid cooling plate) is in direct contact in system.When anti-icing fluid leakage, condensation etc. occur for the pipeline of cooling system,
Since battery modules, BMS and harness and cooling system are located at the same connected domain, it can make battery modules, BMS, harness as a result,
Etc. liquid is directly contacted, especially when slight crack occurs in the pipeline of cooling system, high pressure deicing spray in pipe can be caused, made
Accelerate at failure of insulation, burn into aging, connects the problems such as loosening.
Invention content
It, can with increase battery pack the purpose of the present invention is to provide a kind of battery pack for the problems of the prior art
By property.
According to an aspect of the present invention, a kind of battery pack is provided, including：
Box assembly, the box assembly have an accommodating space；
Partition board is located in the box assembly, the accommodating space is made to be divided into the first connected domain and the second connected domain, institute
It states the first connected domain and second connected domain is mutual indepedent；
Battery modules are located in first connected domain；And
Liquid cooled module is located in second connected domain, and the liquid cooled module passes through the partition board with the battery modules
Carry out heat transfer.
Optionally, the box assembly includes：
Babinet side frame and the first cover board and the second cover board for being placed on babinet side frame both sides, wherein
The babinet side frame, first cover board and the partition board form closed first connected domain；
The babinet side frame, second cover board and the partition board form closed second connected domain.
Optionally, further include：
First heat-conducting layer is filled between the battery modules and the partition board；
The liquid cooled module includes：
Liquid cooling plate；
Second heat-conducting layer is filled between the liquid cooling plate and the partition board.
Optionally, when the area of the liquid cooling plate is less than predetermined threshold, second heat-conducting layer is heat-conducting glue, the heat conduction
The liquid cooling plate is fixed on the partition board by glue.
Optionally, the liquid cooled module further includes：
The liquid cooling plate is fixed on the partition board by support component, and is provided to the liquid cooling plate towards the partition board
Pressing force.
Optionally, the support component includes that the elastic supporting member for supporting optical member of the liquid cooling plate is extended to from box assembly bottom.
Optionally, the support component includes press strip, and the press strip is mechanically connected with partition board to compress the liquid cooling plate
Between the press strip and the partition board, wherein
The press strip includes a few font bending parts for accommodating all liquid cooling plates, the both ends of a few font bending parts with
The partition board mechanical connection；Or
The press strip includes the multiple a few font bending parts for accommodating the liquid cooling plate respectively, each a few font bending parts
Both ends are mechanically connected with the partition board.
Optionally, when the press strip includes multiple a few font bending parts, adjacent a few font bending part phase proximal ends share machinery
Interconnecting piece.
Optionally, the support component further includes that the elastic supporting member for supporting optical member of the press strip is extended to from box assembly bottom,
In, the quantity of the elastic supporting member for supporting optical member is corresponding with a few quantity of font bending part.
Optionally, the liquid cooled module further includes：Battery pack liquid cooling collector is located in second connected domain.
The battery pack of the offer of the present invention has following advantage：
The accommodating space for separating box assembly by partition board, with the first connected domain for forming set battery module and accommodating liquid
Second connected domain of cold component, the first connected domain and the second connected domain are mutual indepedent, battery modules and liquid cooled module by every
Under the premise of the transmission of plate heat does not influence battery modules cooling, the leakage of liquid cooled module anti-icing fluid, condensation contact first can be prevented
The battery management system and harness of battery modules, connection battery modules in logical domain, reduce battery modules and connection battery modules
Battery management system and the possibility damaged due to contact liq of harness, thus improve the reliability of battery pack.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon.
Fig. 1 is the sectional view of the battery pack of the first embodiment of the present invention.
Fig. 2 is the sectional view of the battery pack of the second embodiment of the present invention.
Fig. 3 is the sectional view of the battery pack of the third embodiment of the present invention.
Fig. 4 is the sectional view of the battery pack of the fourth embodiment of the present invention.
Fig. 5 is the sectional view of the battery pack of the fifth embodiment of the present invention.
Fig. 6 is the sectional view of the battery pack of the sixth embodiment of the present invention.
Fig. 7 is the sectional view of the battery pack of the seventh embodiment of the present invention.
Fig. 8 is the sectional view of the battery pack of the eighth embodiment of the present invention.
Fig. 9 is the sectional view of the battery pack of the ninth embodiment of the present invention.
Figure 10 is the enlarged drawing of a-quadrant in Fig. 9.
Specific implementation mode
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein.On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.It is identical attached in figure
Icon note indicates same or similar structure, thus will omit repetition thereof.
Battery pack provided by the invention is illustrated according to Fig. 1 to Fig. 8 respectively first.It is of the invention referring first to Fig. 1, Fig. 1
The sectional view of the battery pack of first embodiment.
Battery pack 100 includes box assembly 110, partition board 120, battery modules 130 and liquid cooled module 140.Box assembly 110
With an accommodating space.Partition board 120 is located in the box assembly 110, and the accommodating space is made to be divided into the first connected domain 101
With the second connected domain 102.First connected domain 101 and the second connected domain 102 are independently of each other.In other words, the first connected domain 101 and
The mutual not unicom of two-connected domain 102.Battery modules 130 are located in first connected domain 101.Liquid cooled module 140 is located at described the
In two-connected domain 102, the liquid cooled module 140 carries out heat transfer with the battery modules 130 by the partition board 120.Partition board
120 preferably, the preferable material of heat conductivility is selected, to reinforce heat-conducting effect.For example, partition board 120 can be aluminum alloy materials.
The battery pack of the offer of the present invention separates the accommodating space of box assembly by partition board, to form set battery module
The first connected domain and accommodating liquid cooled module the second connected domain, the first connected domain and the second connected domain are mutual indepedent, battery mould
Group and liquid cooled module can prevent liquid cooled module anti-icing fluid under the premise of not influencing battery modules cooling by the transmission of partition board heat
Leakage, the battery modules in condensation the first UNICOM domain of contact, the battery management system and harness for connecting battery modules, reduce battery
The possibility that the battery management system and harness of module and connection battery modules are damaged due to contact liq, thus improves battery
The reliability of packet.
It is the sectional view of the battery pack of the second embodiment of the present invention referring to Fig. 2, Fig. 2.It is similar with Fig. 1, battery pack
100 include box assembly 110, partition board 120, battery modules 130 and liquid cooled module.
Box assembly 110 has an accommodating space.Box assembly 110 is including babinet side frame 111 and is placed on babinet side frame
The first cover board 112 and the second cover board 113 of 111 both sides.The babinet side frame 111, first cover board 112 and the partition board
120 form closed first connected domain 101.The babinet side frame 111, second cover board 113 and the partition board 120 form envelope
The second connected domain 102 closed.Specifically, (partition board 120 can be with the babinet of separation battery modules 130 for the partition board 120 of battery pack
Beam welding is together) and babinet side frame 111 weld together, can constitute closing together with the first cover board of battery pack 112 as a result,
The first connected domain 101, water can not flow into the region.The second cover board 113 and babinet side frame 111 of battery pack 100 are welded on one
It rises, constitutes closed second connected domain 102 together with partition board 120, prevent extraneous weather, sandstone and corrosive substance etc.
It is in direct contact the liquid cooled module of battery pack 100.First connected domain 101 and the second connected domain 102 are independently of each other.In other words, first
102 mutual not unicom of connected domain 101 and the second connected domain.
In battery pack 100, the battery pack zero in addition to liquid cooled module (accessory of cooling line and cooling line)
Part connects battery management system and harness of battery modules etc. and is all located in the first connected domain 101.Liquid cooled module is located at the
In two-connected domain 102.Since liquid caused by the leakage of liquid cooled module anti-icing fluid or condensation can not be from second in second connected domain 102
Connected domain 102 is sprayed or is flow in the first connected domain 101.The liquid cooled module of battery pack 100 in 120 lower part of partition board, and with electricity
Pond packet partition board 120 fits closely arrangement, so that liquid cooled module is carried out efficiently with the battery modules 130 by the partition board 120
Heat transfer.
In the present embodiment, battery pack 100 further includes being filled between the battery modules 130 and the partition board 120
One heat-conducting layer 150.Soft Heat Conduction Material may be used in first heat-conducting layer 150, such as heat conductive pad or heat-conducting glue, to fill battery mould
Gap between 130 bottoms of group and partition board 120 and tolerance.Liquid cooled module includes liquid cooling plate 142 and the second heat-conducting layer 141.Liquid cooling
Plate 142 can there are many forms, such as liquid cooling plate 142 can be liquid cooling flat tube.Second heat-conducting layer 141 is filled in the liquid cooling plate
Between 142 and the partition board 120.Second heat-conducting layer 141 can also use soft Heat Conduction Material, such as heat conductive pad or heat-conducting glue, use
To fill gap and the tolerance between liquid cooling plate 142 and partition board 120.Pass through the first heat-conducting layer 150 and the second heat-conducting layer as a result,
141 setting can increase the heat transfer between battery modules 130 and liquid cooling plate 142, prevent from influencing due to the presence in gap
Heat transfer between battery modules 130 and partition board 120, between liquid cooling plate 142 and partition board 120, to influence 130 He of battery modules
Heat transfer between liquid cooling plate 142.
In the present embodiment, since the area of the liquid cooling plate 142 is less than predetermined threshold, second heat-conducting layer
141 be heat-conducting glue, and the liquid cooling plate 142 is fixed on the partition board 120 by the heat-conducting glue.Will be described only with heat-conducting glue
Liquid cooling plate 142 is fixed in the embodiment on the partition board 120, it is contemplated that the heat transfer between liquid cooling plate 142 and partition board 120,
And the viscosity of heat-conducting glue tenses liquid cooling plate 142 enough, at one in the specific implementation, the section quilt as shown in Figure 2 of liquid cooling plate 142
It is divided into multistage, and the width in each section of section shown in Fig. 2 of liquid cooling plate 142 needs the interval being more than between liquid cooling plate 142 wide
Degree, and the width in each section of section shown in Fig. 2 of liquid cooling plate 142 needs to be less than 1/5th of the first heat-conducting layer 150, this hair
It is bright not so limited.
Specifically, foregoing merely illustrates the specific embodiment of the present invention, the present invention is not so limited.In reality
During border is implemented, for the smaller liquid cooling plate of area, heat-conducting glue preferably may be used to carry out heat conduction；It is bigger for area
Liquid cooling plate, heat conductive pad preferably may be used.When liquid cooling plate suqare is prodigious, if using gluing, very big face is needed
Long-pending heat-conducting glue is used for fixing liquid cooling plate, and the liquid cooling plate of large area and the rigidity of partition board are poor, and the machinery of heat-conducting glue itself is strong
Degree is weaker, therefore can be bonded bad.So recommending to use heat conductive pad.When area is smaller, then conversely, as cold plate
Rigidity it is relatively good, therefore the stress that glue is born is smaller, and gluing can meet mechanical performance.
It is the sectional view of the battery pack of the third embodiment of the present invention referring to Fig. 3, Fig. 3.It is similar with Fig. 2, battery pack
100 include box assembly 110, partition board 120, battery modules 130 and liquid cooled module.
In the third embodiment, the liquid cooled module further includes support component.Support component fixes the liquid cooling plate 142
The pressing force towards the partition board 120 is provided on the partition board 120, and to the liquid cooling plate 142.Increase liquid cooling plate as a result,
The efficiency of heat transfer between 142 and partition board 120, simultaneously, it is contemplated that the bonding strength of the second heat-conducting layer 141 and liquid cooling plate 142 with
Time reduces, and liquid cooling plate 142 can be pressed between support component and partition board 120 by support component.Embodiment shown in Fig. 3
In, support component may include that the elastic supporting member for supporting optical member 162 of the liquid cooling plate 142 is extended to from 110 bottom of box assembly.Elasticity branch
Support member 162 can be the porous material of spring, elastic foam or other soft buffering energy-absorbings, and the present invention is not so limited.
In the present embodiment, it is supported by elastic supporting member for supporting optical member 162 due to liquid cooling plate 142, the second heat-conducting layer 141 may not need limit
It is scheduled on heat-conducting glue, the second heat-conducting layer 141 can also be the form of heat conductive pad.Further, it is propped up by elasticity due to liquid cooling plate 142
Support member 162 supports, and therefore, can not limit width of the liquid cooling plate 142 on section.Preferably, elastic supporting member for supporting optical member 162
Be less than the area of liquid cooling plate 142 with the contact area of liquid cooling plate 142, and and the difference of area of liquid cooling plate 142 be less than predetermined area
Value, so that elastic supporting member for supporting optical member 162 provides uniform support compression power to liquid cooling plate 142.Further, elastic supporting member for supporting optical member
162 are aligned with 142 center of liquid cooling plate to maximize support compression power, and then the heat for maximizing liquid cooling plate 142 and partition board 120 passes
It leads.
It is the sectional view of the battery pack of the fourth embodiment of the present invention referring to Fig. 4, Fig. 4.It is similar with Fig. 3, battery pack
100 include box assembly 110, partition board 120, battery modules 130 and liquid cooled module.
The liquid cooled module further includes support component.The liquid cooling plate 142 is fixed on the partition board 120 by support component
On, and provide the pressing force towards the partition board 120 to the liquid cooling plate 142.In the present embodiment, the support component includes
Press strip 162.The press strip 162 and the mechanical connection of partition board 120 (for example, by welding, pad 163 is as shown in Figure 4)
The liquid cooling plate 142 to be pressed between the press strip 162 and the partition board 120.Press strip 162 can be metal bead.Pressure
Item 162 can be spring leaf, and be assembled by the form of card slot and body structure beam.Meanwhile in order to improve the anti-of total
The porous material that heat preservation foam or buffering energy-absorbing are suitably filled between press strip 162 and the second cover board may be selected in shock stability, with
Improve anti-shake performance and integral strength.In the other embodiment of the present invention, 162 surface of press strip can be with rubber-coated material
Material.Rubber material is Heat Conduction Material so that press strip 162 and partition board 120 contact well, during avoiding vibratory impulse, and press strip
While 162 damage liquid cooling plate 142, ensure that the contact of heat conduction route component is close, ensure heat transfer efficiency and heat conduction consistency, makes the
Two unicom regions form good space, are impacted by rubble in effective buffer battery packet driving process, protect the battery from damage
It is bad.
In embodiment shown in Fig. 4, press strip 162 is that (only there are one a few font bending parts for tool, accommodate multiple for single piece type press strip
Liquid cooling plate 142), i.e., press strip 162 is simultaneously supported multiple liquid cooling plates 142 of segmentation, and is provided to liquid cooling plate 142 towards institute
State the pressing force of partition board 120.The advantage of the embodiment is, is convenient for the production of press strip, while convenient for the installation of press strip.Liquid cooling plate
Gap between 142 is included in press strip 162, thus, it is possible to so that adjacent liquid cooling plate 142 by the gap between them into
Row heat transfer increases the heat transfer of the gap between adjacent liquid cooling plate 142 as a result, makes heat of the liquid cooling plate 142 to partition board 120
Conduction is in partition board 120 towards the Surface uniformization of liquid cooling plate 142.
It is the sectional view of the battery pack of the fifth embodiment of the present invention referring to Fig. 5, Fig. 5.It is similar with Fig. 4, battery pack
100 include box assembly 110, partition board 120, battery modules 130 and liquid cooled module.
In the present embodiment, the support component includes press strip 162.Press strip 162 includes accommodating the liquid cooling plate respectively
Multiple a few font bending parts, both ends and the partition board 120 of each a few font bending parts are mechanically connected.Specifically, the press strip
142 segmented of the liquid cooling plate is pressed between the press strip 162 and the partition board 120 by more than 162 font bending parts.It changes
Yan Zhi, in the present embodiment, adjacent liquid cooling plate 142 are separated by press strip 162, and press strip 162 is divided into multistage, each section of correspondence
It, as a result, can be to each section of liquid cooling plate 142 and partition board to a liquid cooling plate 142 offer support and towards the pressing force of the partition board 120
Pressing force that heat transfer between 120 is provided by press strip 162 is adjusted and is adjusted, and is realized between liquid cooling plate 142 and partition board 120
Efficient heat transfer.
It is the sectional view of the battery pack of the sixth embodiment of the present invention referring to Fig. 6, Fig. 6.It is similar with Fig. 5, battery pack
100 include box assembly 110, partition board 120, battery modules 130 and liquid cooled module.
In the present embodiment, the support component includes press strip 162.The press strip 162 is by 142 segmented of the liquid cooling plate
Ground is pressed between the press strip 162 and the partition board 120.In the present embodiment, adjacent liquid cooling plate 142 is separated by press strip 162,
But press strip 162 is still integral type, and press strip 162 has a few font bending parts for accommodating liquid cooling plate 142 respectively, adjacent a few font bendings
Mechanical connection point (such as pad 163) is shared between part.In the present embodiment, it is corresponded in each a few font bending parts of press strip 162
Support is provided to a liquid cooling plate 142 and towards the pressing force of the partition board 120, while being convenient for press strip 162 to install as a result, is increased
The pressing force of the direction that is provided to liquid cooling plate 142 of pressurization item 162 partition board 120, to increase liquid cooling plate 142 and partition board 120
Between heat transfer efficiency.
It is the sectional view of the battery pack of the seventh embodiment of the present invention referring to Fig. 7, Fig. 7.It is similar with Fig. 4, battery pack
100 include box assembly 110, partition board 120, battery modules 130 and liquid cooled module.
In the present embodiment, the support component includes press strip 162 and extends to the press strip from 110 bottom of box assembly
162 elastic supporting member for supporting optical member 161.In the present embodiment, an elastic supporting member for supporting optical member 161 is provided, with to the press strip 162 into one of integral type
Step provides the pressing force towards the partition board 120, and then increases the direction partition board that press strip 162 is provided to liquid cooling plate 142
120 pressing force, to increase the efficiency of heat transfer between liquid cooling plate 142 and partition board 120.
It is the sectional view of the battery pack of the seventh embodiment of the present invention referring to Fig. 8, Fig. 8.It is similar with Fig. 7, battery pack
100 include box assembly 110, partition board 120, battery modules 130 and liquid cooled module.
In the present embodiment, the support component includes press strip 162 and extends to the press strip from 110 bottom of box assembly
162 elastic supporting member for supporting optical member 161.In the present embodiment, multiple elastic supporting member for supporting optical member 161 are set, and each elastic supporting member for supporting optical member 161 corresponds to one
A few font bending parts of press strip 162 provide the pressure towards the partition board 120 to a few font bending parts bottom of press strip 162 respectively
Clamp force, and then the direction that is provided to liquid cooling plate 142 of a few font bending part bottom walls for increasing each press strip 162 partition board 120
Pressing force, to increase the efficiency of heat transfer between liquid cooling plate 142 and partition board 120.
In various embodiments of the present invention, the liquid cooled module of battery pack 100 is also provided with positioned at the second connected domain
Liquid cooling collector in 102 has some splitters inside liquid cooling collector, for each liquid cooling plate of inflow liquid cooled module
Assignment of traffic is uniform.
The ninth embodiment of the present invention is described with reference to Fig. 9 and Figure 10.Battery pack 100 includes box assembly 110, partition board
120, battery modules 130 and liquid cooling plate 142.Battery pack crossbeam (not indicating) and partition board weld together, and by partition board and
The side frame of box assembly 110 welds together.As shown in figure 9, battery pack crossbeam, partition board, side frame, the first cover board, high-low pressure are defeated
Outlet and breather valve (not indicating) can constitute closed area together, and water can not flow into the region.Battery pack liquid cooling component every
120 lower part of plate, and fit closely arrangement with partition board 120.Battery pack crossbeam, partition board, side frame, the second cover board weld together, structure
At a closed area, extraneous weather, sandstone and corrosive substance etc. is prevented to be in direct contact battery pack liquid cooling plate 142, liquid cooling
Collector 190.There are some splitters inside battery pack liquid cooling collector, it is equal for the assignment of traffic each liquid cooling plate of inflow
It is even.
The battery pack of the offer of the present invention has following advantage：
The accommodating space for separating box assembly by partition board, with the first connected domain for forming set battery module and accommodating liquid
Second connected domain of cold component, the first connected domain and the second connected domain are mutual indepedent, battery modules and liquid cooled module by every
Under the premise of the transmission of plate heat does not influence battery modules cooling, the leakage of liquid cooled module anti-icing fluid, condensation contact first can be prevented
The battery management system and harness of battery modules, connection battery modules in logical domain, reduce battery modules and connection battery modules
Battery management system and the possibility damaged due to contact liq of harness, thus improve the reliability of battery pack.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention's
Protection domain.
Claims (10)
1. a kind of battery pack, which is characterized in that including：
Box assembly, the box assembly have an accommodating space；
Partition board is located in the box assembly, and the accommodating space is made to be divided into the first connected domain and the second connected domain, and described the
One connected domain and second connected domain are mutual indepedent；
Battery modules are located in first connected domain；And
Liquid cooled module is located in second connected domain, and the liquid cooled module is carried out with the battery modules by the partition board
Heat transfer.
2. battery pack as described in claim 1, which is characterized in that the box assembly includes：
Babinet side frame and the first cover board and the second cover board for being placed on babinet side frame both sides, wherein
The babinet side frame, first cover board and the partition board form closed first connected domain；
The babinet side frame, second cover board and the partition board form closed second connected domain.
3. battery pack as described in claim 1, which is characterized in that further include：
First heat-conducting layer is filled between the battery modules and the partition board；
The liquid cooled module includes：
Liquid cooling plate；
Second heat-conducting layer is filled between the liquid cooling plate and the partition board.
4. battery pack as claimed in claim 3, which is characterized in that described when the area of the liquid cooling plate is less than predetermined threshold
Second heat-conducting layer is heat-conducting glue, and the liquid cooling plate is fixed on the partition board by the heat-conducting glue.
5. battery pack as claimed in claim 3, which is characterized in that the liquid cooled module further includes：
The liquid cooling plate is fixed on the partition board by support component, and provides the pressure towards the partition board to the liquid cooling plate
Clamp force.
6. battery pack as claimed in claim 5, which is characterized in that the support component includes being extended to from box assembly bottom
The elastic supporting member for supporting optical member of the liquid cooling plate.
7. battery pack as claimed in claim 5, which is characterized in that the support component includes press strip, the press strip and partition board
Mechanical connection is the liquid cooling plate to be pressed between the press strip and the partition board, wherein
The press strip includes a few font bending parts for accommodating all liquid cooling plates, the both ends of a few font bending parts with it is described
Partition board is mechanically connected；Or
The press strip includes the multiple a few font bending parts for accommodating the liquid cooling plate respectively, the both ends of each a few font bending parts
It is mechanically connected with the partition board.
8. battery pack as claimed in claim 7, which is characterized in that adjacent when the press strip includes multiple a few font bending parts
A few font bending part phase proximal ends share mechanical link.
9. battery pack as claimed in claim 7, which is characterized in that the support component further includes extending from box assembly bottom
To the elastic supporting member for supporting optical member of the press strip, wherein the quantity of the elastic supporting member for supporting optical member is opposite with a few quantity of font bending part
It answers.
10. battery pack as described in any one of claim 1 to 9, which is characterized in that the liquid cooled module further includes：Battery pack
Liquid cooling collector is located in second connected domain.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810698009.2A CN108574077A (en) | 2018-06-29 | 2018-06-29 | Battery pack |
| PCT/CN2019/082099 WO2020001126A1 (en) | 2018-06-29 | 2019-04-10 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810698009.2A CN108574077A (en) | 2018-06-29 | 2018-06-29 | Battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108574077A true CN108574077A (en) | 2018-09-25 |
Family
ID=63572270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810698009.2A Pending CN108574077A (en) | 2018-06-29 | 2018-06-29 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108574077A (en) |
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| CN110010818A (en) * | 2019-04-28 | 2019-07-12 | 深圳市富程威科技有限公司 | A kind of liquid cooling plate support buffer structure and battery pack |
| WO2020001126A1 (en) * | 2018-06-29 | 2020-01-02 | 爱驰汽车有限公司 | Battery pack |
| CN111370813A (en) * | 2018-12-25 | 2020-07-03 | 合肥国轩高科动力能源有限公司 | Power battery pack with built-in cooling pipeline |
| WO2020177609A1 (en) * | 2019-03-05 | 2020-09-10 | 爱驰汽车有限公司 | Battery pack |
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