CN109256511A - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN109256511A CN109256511A CN201811366328.XA CN201811366328A CN109256511A CN 109256511 A CN109256511 A CN 109256511A CN 201811366328 A CN201811366328 A CN 201811366328A CN 109256511 A CN109256511 A CN 109256511A
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- CN
- China
- Prior art keywords
- cabinet
- battery pack
- plate
- temperature
- bottom plate
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention provides a kind of battery packs.Battery pack provided by the invention, include: the first cabinet, there is the first accommodating space, first cabinet includes at least the first side plate, the first bottom plate and the multiple crossbeams extended in a second direction, each crossbeam is provided with protrusion, and the first direction is perpendicular to the second direction；Battery modules are located in first accommodating space, and each battery modules have the first groove matched with the protrusion, and each battery modules are connected and fixed with the protrusion；Second cabinet has the second accommodating space, and is removably attachable to first cabinet；And temperature-controlled package, it is located in second accommodating space, and be removably attachable to first cabinet.Battery pack provided by the invention is removed and replaced for convenient for temperature-controlled package, promotes the performance of temperature-controlled package, while reducing the cost of heat management, or even improves the reliability of battery pack.
Description
Technical field
The present invention relates to electric cars, specifically, being related to the battery pack of electric car.
Background technique
Liquid cooling battery pack at present, battery modules, battery management system, harness, cooling system etc. are usually in battery lodge
Within the connected domain that body is constituted.Anti-icing fluid leakage, condensation etc. occur for cooling system pipeline, can make battery modules, battery management
System, harness, etc. touch liquid, especially pipeline and slight crack occur and will lead to high pressure deicing spray in pipe, cause insulation to lose
The problems such as effect, burn into aging accelerate, and connection loosens.
It is configured with the bottom liquid cooling battery pack of heating function at present, there are two types of heating methods:
Heating method one: liquid cooling plate undertakes heating function, respectively when battery needs cooling and needs to heat, passes through
Water valve switches battery radiator and battery PTC (thermistor) heater, drives anti-icing fluid to realize to battery by water pump
Heating and cooling；
The major defect of heating method one is: 1) viscosity is larger at low temperature for anti-icing fluid, in order to meet simultaneously it is cooling and
Heating needs to configure the water pump of relatively high power, while the temperature difference heated is also much larger than the cooling temperature difference；2) when heating, prevent
Freeze liquid temperature and circumstance of temperature difference is larger, heating time is long, and it is big to leak heat.
Heating method two: liquid cooling plate does not undertake heating function, and electric boiling plate or electric heating diaphragm are placed directly against battery mould
The surface of group starts electric boiling plate or electric heating diaphragm and heats to battery when battery needs to heat.Currently, market
The electric boiling plate or electric heating diaphragm of change be mainly PTC heating plate, metal PI (polyimides) heating film, ceramic heat film,
Graphene heating film etc..
The major defect of heating method two: 1) when electric boiling plate or electric heating diaphragm and battery cooling plate are simutaneously arranged
When the bottom of mould group, the effect of heating or cooling will affect；2) when electric boiling plate or electric heating diaphragm are arranged in mould group
When side, security and reliability hidden danger is larger.
It can be seen that configuring fixed temperature-controlled package in battery pack, the performance of temperature-controlled package is influenced, simultaneously
The higher cost of heat management, or even will cause the reduction of battery pack reliability.
Summary of the invention
For the problems of the prior art, the purpose of the present invention is to provide a kind of battery packs, in order to temperature adjusting group
Part is removed and replaced for, and promotes the performance of temperature-controlled package, while reducing the cost of heat management, in addition improve battery pack can
By property.
According to an aspect of the present invention, a kind of battery pack is provided, comprising:
First cabinet, has the first accommodating space, and first cabinet includes at least the first side plate, the first bottom plate and along the
Multiple crossbeams that two directions extend, each crossbeam are provided with close to one end of first bottom plate, along the two sides of first direction
Protrusion, the first direction is perpendicular to the second direction；
Battery modules are located in first accommodating space, and each battery modules have to be matched with the protrusion
The first groove, and each battery modules are connected and fixed with the protrusion；
Second cabinet has the second accommodating space, and is removably attachable to first cabinet；And
Temperature-controlled package is located in second accommodating space, and is removably attachable to first cabinet.
Optionally, second cabinet includes the second bottom plate, and second bottom plate removably connects with first side plate
It connects；Or
Second cabinet includes at least the second side plate, and second side plate and first side plate are detachably connected.
Optionally, the temperature-controlled package includes cooling component and/or heating component.
Optionally, the cooling component includes:
The multiple harmonica-shaped tubes extended in a first direction；
The multiple headers extended in a second direction, positioned at the two sides of each harmonica-shaped tube first direction, second direction is hung down
Directly in first direction.
Optionally, the thickness of the header is greater than the thickness of the harmonica-shaped tube, first bottom plate and first side
Plate forms the second groove for accommodating the header, and the depth of second groove is the thickness of the header and the harmonica-shaped tube
Spend the half of difference.
Optionally, the cooling component further include:
The multiple supporting springs extended along the second direction, to support the harmonica-shaped tube；And
The one or more supporting plates extended along the first direction, to provide the handle part of the cooling component, second party
To perpendicular to first direction.
Optionally, each supporting spring has spaced multiple concave portions and multiple interconnecting pieces, each the female
Portion accommodates at least one harmonica-shaped tube, and the interconnecting piece is for connecting the position that the first bottom plate corresponds to the crossbeam.
Optionally, the heating component includes:
Support plate, detachably connected first bottom plate correspond to the position of the crossbeam；
Heating film is adhered to the support plate towards the side of first cabinet；
Thermally conductive gel, the thermally conductive gel are adhered to the heating film through heat cure towards the one of first cabinet
Side, the thermally conductive gel backwards to the side of the heating film and the second top plate of second cabinet or first cabinet the
One bottom plate is in contact.
Optionally, the quantity of the heating film is multiple, and the multiple heating film is arranged along first direction, adjacent heating film
Between there is the interval of the exposure support plate, the support plate of the exposure is connected and fixed with the crossbeam.
Optionally, second cabinet further include:
Elastic supporting member for supporting optical member, between the temperature-controlled package and second cabinet, to be adjusted to the temperature
Component provides resilient support.
The battery pack of offer of the invention is by being removably installed temperature-controlled package, on the one hand, so that battery modules
It is located in two mutual not spaces of connection with temperature-controlled package, reduces reciprocal influence；It on the other hand, can be according to difference
Demand dismantle and replace different temperature-controlled packages, will not influence each other between temperature-controlled package, promoted temperature adjust
The performance of component, while the cost of heat management is reduced, or even improve the reliability of battery pack；In another aspect, first can be made
Bottom plate is almost flat plane backwards to the side of battery modules, is replaced convenient for the disassembly of processing procedure and temperature-controlled package.
Detailed description of the invention
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 one embodiment of the invention.
Fig. 2 is the explosive view of the battery pack of one more embodiment of the present invention.
Fig. 3 is the sectional view of the battery pack of Fig. 2.
Fig. 4 is the partial enlarged view of Fig. 3.
Fig. 5 is the schematic diagram of the cooling component of the battery pack of Fig. 2.
Fig. 6 is the partial enlarged view of the cooling component AA sectional view of Fig. 5.
Fig. 7 is the cooling component of Fig. 2 and the schematic diagram of the second cabinet.
Fig. 8 is the schematic diagram of the heating component of the battery pack of Fig. 2.
Fig. 9 is the partial enlarged view of the heating component BB sectional view of Fig. 8.
Specific embodiment
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.
Fig. 1 is combined to describe the first embodiment of the present invention first, Fig. 1 is the section of the battery pack of one embodiment of the invention
Figure.
Battery pack includes the first cabinet 110, battery modules 120, the second cabinet 150 and temperature-controlled package 140.First case
Body 110 has the first accommodating space 113.Battery modules 120 are located in first accommodating space 113.Second cabinet 150 has
Second accommodating space 153, and the second cabinet 150 is removably attachable to first cabinet 110.Temperature-controlled package 140
In in second accommodating space 153, and temperature-controlled package 140 is removably attachable to first cabinet 110.By upper
Structure is stated, battery pack provided by the invention is by being removably installed temperature-controlled package, on the one hand, so that battery modules and temperature
Degree adjusts component and is located in two mutual not spaces of connection, reduces reciprocal influence；It on the other hand, can be according to different need
It asks disassembly and replaces different temperature-controlled packages, will not influence each other between temperature-controlled package, promote temperature-controlled package
Performance, while reducing the cost of heat management, or even improve the reliability of battery pack.
In the present embodiment, first cabinet 110 includes at least the first side plate 111, and second cabinet 150 at least wraps
The second side plate 151 is included, second side plate 151 and first side plate 111 are detachably connected.First cabinet 110 is also
Including the first bottom plate 112, second cabinet 150 is removably attachable to first cabinet 110 so that second side plate
151 form second accommodating space 153 with first bottom plate 112.
In further embodiments, second cabinet includes the second bottom plate, second bottom plate and first side plate
It is detachably connected.In other words, in the present embodiment, second cabinet does not have side plate, and the second bottom plate is almost plane
Bottom plate.
Liquid caused by the anti-icing fluid leakage of the temperature-controlled package of provided battery pack and condensation can not be from the as a result,
Two accommodating spaces are sprayed or are flow in the first accommodating space, under the premise of guaranteeing cooling battery and preheating performance, are improved
Vehicle security, even if guaranteeing battery pack situations such as being collided and squeezing, the components in the first accommodating space will not
Touch the coolant liquid of the second accommodating space leakage.The part of the second accommodating space of installation, disassembly and replacement will not influence first
The sealing grade of accommodating space.
What cooling component/heating component of temperature-controlled package can be used as electric car chooses to install part, can dismantle and more
It changes, cooling component/heating component of the program is arranged in the bottom of mould group.In the second accommodating space of installation, disassembly and replacement
Part.Second cabinet can be used as heat-insulated protective plate, in the battery pack structure of each embodiment of the present invention, heat-insulated protective plate
Installation, disassembly and the replacement that can be convenient will not influence the sealing grade of the first accommodating space 113.As a result, the present invention can provide
The structure of flexible battery pack, and corresponding different use pattern is provided, for example temperature-controlled package can be with rent and sale, Ke Yidan
Solely apolegamy, can replace.
Cooling component/heating component is used for cooling/heating battery pack, can be bonded, be bolted, weld using gluing or
The modes such as person's clamping and first bottom of box keep being in close contact.Preferably using replaceable bolt connection clamping connection side
Formula, to reinforce bonding strength.It is excellent in order to keep cooling component/heating component low with the interface heat transfer thermal resistance of battery pack box baseplate
Selection of land uses the heat-conducting glue that soft thermally conductive sheet or adhesive property are low between cooling component/heating component and the first box baseplate
Or superconductive pellet, to accelerate heat transfer.Soft thermally conductive sheet can be molded over first bottom of box in advance, can also be molded in advance cold
But component/heating component surface.Preferably, soft thermally conductive sheet is molded over the battery pack bottom of box in advance, with guarantee cooling component/
The temp regulating function of heating component.
Second cabinet (isolating and protecting plate) is used to increase the thermal resistance of cooling component/between heating component and external environment, subtracts
Few energy consumption；Protect cooling component/heating component not by the physical and chemical degradation of external environment simultaneously.Second cabinet can
It is kept in contact in a manner of being bonded, being bolted, welding or being clamped etc. using gluing with the bottom of the first cabinet.It is anti-in order to improve
Shock stability, while the leakproofness being kept in contact, can be in the contact surface of the second cabinet and the first box crossbeam and the first side plate
Elastic supporting member for supporting optical member is set, and elastic supporting member for supporting optical member is between the temperature-controlled package and second cabinet, to the temperature
Degree adjusts component and provides resilient support.Elastic supporting member for supporting optical member preferably can be foam, so that the second cabinet generates prestressing force effect,
Improve the frequency characteristic of the second cabinet.Reinforcing rib can be arranged in the continuous region of non-bubble simultaneously, the second cabinet on the one hand can be improved
On the other hand the rigidity of itself can take the continuous positioning action of bubble, convenient for the installation that bubble is continuous.Foam can be molded over the first case in advance
Body crossbeam and the first surface of side plate can also be molded over the second tank surface in advance.Preferably, foam is molded over second in advance
Tank surface.
Second cabinet, cooling component/heating component, assembly implementation process can a point multistep assemble, firstly, being assembled into cooling
Component/heating component is simultaneously assembled on the first cabinet, is installing the second cabinet later.In further embodiments, the second cabinet
It may be designed to an assembly parts with cooling component/heating component, first by the second cabinet and cooling component/heating component pre-assembly
Integral part, can be bonded, be bolted by gluing, weld perhaps clamping etc. modes realize need install or replace
When be installed to first bottom of box, this scheme facilitates operation, can be improved assembly and replacement speed, improve efficiency.
The third embodiment of the present invention is described below with reference to Fig. 2 to Fig. 9.Fig. 2 is the battery of one more embodiment of the present invention
The explosive view of packet.Fig. 3 is the sectional view of the battery pack of Fig. 2.Fig. 4 is the partial enlarged view of Fig. 3.Fig. 5 is the cold of the battery pack of Fig. 2
But the schematic diagram of component.Fig. 6 is the partial enlarged view of the cooling component AA sectional view of Fig. 5.Fig. 7 is the cooling component and of Fig. 2
The schematic diagram of two cabinets.Fig. 8 is the schematic diagram of the heating component of the battery pack of Fig. 2.Fig. 9 is the heating component BB sectional view of Fig. 8
Partial enlarged view.
Battery pack includes the first cabinet 310, battery modules 320, the second cabinet 350 and temperature-controlled package 340.First case
Body 310 has the first accommodating space.Battery modules 320 are located in first accommodating space.Second cabinet 350 has second to hold
Between emptying, and the second cabinet 350 is removably attachable to first cabinet 310.Temperature-controlled package 340 is located at described second
In accommodating space, and temperature-controlled package 340 is removably attachable to first cabinet 310.In the present embodiment, described
One cabinet 310 include the first side plate 311, cover board 314, the first bottom plate 312 (sealing the second accommodating space with the second cabinet 350) and
Multiple crossbeams 315 that second direction extends.The crossbeam and 311 structure of the first side plate of first cabinet 310 are profile structure, can also be with
It is designed to casting.In the present embodiment, the crossbeam of the first cabinet 310 and the first side plate 311 are aluminium profile structure.It is designed as profile
Shaping structures simple process, space expansibility is good, and structural strength is high and light-weight.It is solid that first side plate 311 is provided with battery pack
Fixed point, for battery pack to be installed to vehicle, can also set in battery pack front-end and back-end or centre according to actual needs
Set fixed point.First side plate 311 forms a rectangular area by welding.First bottom plate 312 and the first side plate 311, crossbeam 315 it
Between by welding, rivet or be bolted to form sealed bottom region.In the present embodiment, by welding by the first bottom plate 312 with
The connection of first side plate 311.Optionally, can also to be coated with structure between the first bottom plate 312 and the first side plate 311 and crossbeam 315 close
Sealing, for enhancing bonding strength and sealing function.Adhesive strength can select according to actual needs, it may be preferable that can be tool
There is the structure glue of certain elasticity.By welding and gluing collective effect, high-intensitive connection and sealing are formed, reduce seal failure
Risk, improve reliability of structure.Be also provided between battery modules 320 and the first bottom plate 312 heat-conducting pad and/or
Heat-conducting glue 330, the gap generated for filling the unequal various tolerances of battery modules 320, guarantees heat transfer effect.In some tools
In body embodiment, the part that the first bottom plate 311 of first cabinet 310 is connect with the temperature-controlled package 340 is provided with
Reinforcing rib, to reinforce mechanical coupling strength.
In the present embodiment, each crossbeam 315 and 311 bottom end of the first side plate can be equipped with sealing rivet nut, be used for second
The fixation of cabinet 350.Each crossbeam 315 connects one end of first bottom plate 312, along first direction (perpendicular to second party
To) two sides be provided with protrusion 316 (the mould group fixed beam that protrusion is used as fixed battery modules 320).Accordingly, each described
Battery modules 320 have the first groove 321 matched with the protrusion 320, and the first of each battery modules 320 is recessed
Slot 321 is connected and fixed with the protrusion 316.Thus, it is possible to make the first bottom plate more than 312 backwards to the side of battery modules 320
It is flat plane, is replaced convenient for the disassembly of processing procedure and temperature-controlled package 340.
In the present embodiment, temperature-controlled package 340 is cooling component.Cooling component can be using cost is relatively low and technique
Mature harmonica-shaped tube is formed.Specifically, the cooling component 340 may include the multiple harmonica-shaped tubes extended in a first direction
341 and multiple headers 342 for extending in a second direction.The multiple headers 342 extended in a second direction are located at each mouth
The two sides of 341 first direction of qin pipe.Harmonica-shaped tube 341 and header 342 form liquid cooling plate.The cooling component 340 further includes setting
Set the intake-outlet 343 on header 342.Intake-outlet 343 may be disposed at outside battery pack, can also pass through box house
It is transferred to outside cabinet again.Further, in the present embodiment, cooling component 340 further includes extending along the second direction
Multiple supporting springs 344.Each supporting spring 344 has spaced multiple concave portions 3441 and multiple interconnecting pieces 3442, described
Interconnecting piece 3442 is concordant with the top in the female portion 3441, and each the female portion 3441 accommodates at least one harmonica-shaped tube 341,
The interconnecting piece 3442 is used to connect the first bottom plate 312 of first cabinet 310.The harmonica-shaped tube 341 is located at the female
When portion 3441, the height of the harmonica-shaped tube 341 is concordant with the interconnecting piece 3442.Supporting spring 344 is provided to harmonica-shaped tube 341 towards the
The pressure of one cabinet 311, so that temperature of the harmonica-shaped tube 341 by the first cabinet 311 more effectively regulating cell mould group 320.Even
Socket part 3442 and the position of crossbeam 315 are correspondingly connected with, and cooling component are connected to the first cabinet 311, and avoid to battery mould
The battery portion of group 320.Further, the cooling component 340 further includes the one or more extended along the first direction
Supporting plate 345.Supporting plate 345 is located at the two sides of the multiple 341 second direction of harmonica-shaped tube, and the supporting plate 345 is fixed on the supporting spring
344 interconnecting piece 3442 is backwards to the side of the harmonica-shaped tube 341.Since harmonica-shaped tube 341 is thin-walled aluminum material, rigidity is poor, because
This promotes the intensity of cooling component 340 by supporting spring 341 and supporting plate 345.Guarantee that cooling component 340 will not occur due to gravity
Deformation guarantees that cooling component 340 will not deform in the handling process.In the installation of cooling component 340 and the first cabinet 311
In movement, supporting spring 341 and supporting plate 345 can be used as the supporting surface of frock clamp.It can be used between supporting spring 341 and supporting plate 345
Gluing the modes such as is bonded, is bolted, welds or is clamped and is kept in contact fixation.The elastic foam 346 of 345 bottom of supporting plate with can
The second cabinet 350 contact of replacement plays support and inhales effect of vibration.
Supporting spring 341 can be bolted to the position of the correspondence crossbeam 315 of the first bottom plate 312, in 315 position of crossbeam
Installation sealing rivet nut is connected, and rivet nut preferentially selects the flange face thin or countersunk head.Supporting spring 341 is used into spiral shell
Bolt is fixed on the position of the correspondence crossbeam 315 of the first bottom plate 312, connected with crossbeam position installation sealing rivet nut,
So that harmonica-shaped tube 341 is had good flatness, with mould group formed it is close be bonded, guarantee heat-transfer effect.First bottom plate 312 and supporting spring
341 connections can also use the non-structural glue of the structure glue with sealing performance in addition to riveting or being bolted or weld.It is viscous
Connecing intensity can select according to actual needs, preferential to use the structure glue with certain elasticity.Guarantee that automobile cools down during exercise
The intensity of component 340, while good contact is formed with the first bottom plate 312.The sealing performance of cabinet is realized simultaneously.Cooling component
340 and first the contact surface of bottom plate 312 can use heat-conducting pad.Heat-conducting pad can be bonded in advance in cooling component 340.
The present invention is not limited thereto, and in addition to the cooling component of harmonica-shaped tube structure, the present invention can also use the electricity of other structures form
Pond packet cooling component.
Further, the thickness of the header 342 be greater than the harmonica-shaped tube 341 thickness, first bottom plate 312 and
First side plate 311 forms the second groove 318 for accommodating the header 342, and 318 depth of second groove are described
The half of the thickness difference of header 342 and the harmonica-shaped tube 341, without making the bending of harmonica-shaped tube 341 that whole electricity can be realized
The miniaturization of Chi Bao.The rivet nut and sealing foam of the setting of first side plate, 311 bottom are used for the installation of the second cabinet 350, peace
The second accommodating space of a sealing is formed after dress to accommodate cooling component 340.The sealing foam of first side plate, 311 bottom directly pastes
It is attached to profile rear surface, without machining or profile design seal groove extrusion forming, extruding tool design is simple, operation letter
It is single, it is not necessarily to equipment investment, it is at low cost.
Second cabinet 350 may include elastic supporting member for supporting optical member 355.The elastic supporting member for supporting optical member can extend in a second direction.The
Two cabinets 350 can be used for increasing the thermal resistance between temperature-controlled package 340 and external environment, reduce energy consumption；It protects simultaneously
Temperature-controlled package 340 is not by the physical and chemical degradation of external environment.Elastic supporting member for supporting optical member 355 is used to support temperature adjusting group
Part 340 further increases the reliable contacts in heat transfer contact face between the first bottom plate 312 and temperature-controlled package 340.It caches simultaneously
Shock-absorbing.Elastic supporting member for supporting optical member 355 can be foam or spring leaf.Due to foam lightweight, it is preferable that use foam.Foam can thing
It is first molded over 350 surface of the second cabinet, 350 surface of the second cabinet can also be bonded in using gum.Second cabinet 350 can be used
The higher profile of mechanical strength.Second cabinet 350 can be bonded, be bolted, weld or be clamped etc. using gluing modes and
The first side plate 311 and the first bottom plate 312 of first cabinet 310 are kept in contact.In order to improve anti-seismic performance, while being kept in contact
Leakproofness can use foam in the contact surface of the second cabinet 350 and the first cabinet 310, and foam can be molded over the second case in advance
350 surface of body.Preferably, reinforcing rib can be set on the second cabinet 350 to improve the mechanical performance of isolating and protecting plate.
In a change case of Fig. 2, temperature-controlled package 340 is heating component, as shown in Figure 8 and Figure 9.Heating component
Including support plate 341 ', heating film 342 '.Detachably connected first cabinet of support plate 341 ' the first bottom plate (or as scheme
Second top plate of second cabinet in 2 embodiments).Heating film 342 ' is adhered to the support plate towards first cabinet
Side.The heating component may include multiple heating films 342 ', and each corresponding battery modules of the heating film 342 ' are set
It sets, the first bottom plate of detachably connected first cabinet of support plate 341 ' of exposure between at least described heating film 342 '
(or second top plate such as second cabinet in Fig. 2 embodiment).Further, the heating component further includes thermally conductive gel
343'.The thermally conductive gel 343 ' is adhered to the heating film 342 ' through heat cure towards the side of first cabinet, institute
Thermally conductive gel 343 ' is stated backwards to the side of the heating film 342 ' and the first bottom plate of first cabinet (or such as Fig. 2 embodiment
In second cabinet the second top plate) be in contact.
In the present embodiment, the quantity of the heating component 340 is one, the quantity of the heating film 342 ' be it is multiple,
The quantity of the thermally conductive gel 343 ' is consistent with the quantity of the heating film 342 '.Multiple 342 ' first direction of heating film arrangements
(first direction is perpendicular to second direction), has the interval of the exposure support plate 341 ' between adjacent heating film 342 ', and institute is sudden and violent
The support plate 341 ' of dew is connect with the crossbeam of the first cabinet of the battery pack.Each thermally conductive gel 343 ' is in the support plate
Upper 341 ' projected area is less than projected area of the corresponding heating film 342 ' in the support plate 341 '.Each heating film
342 ' width in a first direction is less than the distance of adjacent beams in a first direction, is carried out with the respective battery modules of correspondence
Preheating.
Specifically, since heating film 342 ' belongs to the thin wall flexible part of large area.Under non-replaceable scene, heating film 342 '
Often there is single-sided back-adhesive, battery surface to be heated is pasted by gum, the air except sticky table is squeezed by roll squeezer, when adding
It after hotting mask is torn from battery surface to be heated, often crimps, exists simultaneously the possibility of internal circuit fracture.
Under replaceable scene of the invention, above-mentioned heating structure is provided to guarantee that heating film 342 ' can be replaced repeatedly and make
With, installation and replacement process is simple, good reliability.Support plate 341 ' uses the preferable hard fire proofing material of temperature tolerance, plays fixed add
Hotting mask, the effect for keeping heating film shape in multiple disassembly process；Simultaneously in the installation action of heating component and the first cabinet,
Supporting surface of the support plate 341 ' as frock clamp；Heating film 342 ' has single-sided back-adhesive, for heating film 342 ' to be pasted onto
In support plate；It is high viscosity liquid under 343 ' initial situation of thermally conductive gel, becomes elastomer by heat cure, it is cured thermally conductive solidifying
Glue 343 ' is bonded in 342 ' surface of heating film on one side, and another side is free state.Support plate 341 ' can be used bolt and be fixed on
The crossbeam position of one bottom plate guarantees automobile during exercise, heating component and the good contact of the first bottom plate.It can in support plate 341 '
341 ' mechanical performance of support plate is improved so that reinforcing rib is arranged.The structure of heating component of the invention is not limited thereto, other
The heating component of form is also within protection scope of the present invention.
As described above, cooling component, heating component and the second cabinet can be used as electric car choose to install part, to be torn open
It unloads and replaces.Replaceable cooling component, heating component and the second cabinet are installed, dismantled and replaced, will not influence the close of battery pack
Seal grade.Wherein, cooling component, heating component and the second cabinet can choose to install part respectively as individual；Cooling component and add
Hot component can be combined into one and choose to install part；Cooling component and the second cabinet can be combined into one and choose to install part；Heating component and
Second cabinet can be combined into one and choose to install part；Cooling component, heating component and the second cabinet can choose to install collectively as one
Part, it will not be described here.
The battery pack of offer of the invention is by being removably installed temperature-controlled package, on the one hand, so that battery modules
It is located in two mutual not spaces of connection with temperature-controlled package, reduces reciprocal influence；It on the other hand, can be according to difference
Demand dismantle and replace different temperature-controlled packages, will not influence each other between temperature-controlled package, promoted temperature adjust
The performance of component, while the cost of heat management is reduced, or even improve the reliability of battery pack；In another aspect, first can be made
Bottom plate is almost flat plane backwards to the side of battery modules, is replaced convenient for the disassembly of processing procedure and temperature-controlled package.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.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 of the invention
Protection scope.
Claims (10)
1. a kind of battery pack characterized by comprising
First cabinet, has the first accommodating space, and first cabinet includes at least the first side plate, the first bottom plate and along second party
To multiple crossbeams of extension, each crossbeam is provided with protrusion close to one end of first bottom plate, along the two sides of first direction
Portion, the first direction is perpendicular to the second direction；
Battery modules are located in first accommodating space, and each battery modules have the matched with the protrusion
One groove, and each battery modules are connected and fixed with the protrusion；
Second cabinet has the second accommodating space, and is removably attachable to first cabinet；And
Temperature-controlled package is located in second accommodating space, and is removably attachable to first cabinet.
2. battery pack as described in claim 1, which is characterized in that second cabinet includes the second bottom plate, second bottom
Plate and first side plate are detachably connected；Or
Second cabinet includes at least the second side plate, and second side plate and first side plate are detachably connected.
3. battery pack as described in claim 1, which is characterized in that the temperature-controlled package includes cooling component and/or adds
Hot component.
4. battery pack as claimed in claim 3, which is characterized in that the cooling component includes:
The multiple harmonica-shaped tubes extended in a first direction；
The multiple headers extended in a second direction, positioned at the two sides of each harmonica-shaped tube first direction, second direction perpendicular to
First direction.
5. battery pack as claimed in claim 4, which is characterized in that the thickness of the header is greater than the thickness of the harmonica-shaped tube
Degree, first bottom plate and first side plate form the second groove for accommodating the header, the depth of second groove
For the half of the header and the thickness difference of the harmonica-shaped tube.
6. battery pack as claimed in claim 4, which is characterized in that the cooling component further include:
The multiple supporting springs extended along the second direction, to support the harmonica-shaped tube；And
The one or more supporting plates extended along the first direction, to provide the handle part of the cooling component, second direction is hung down
Directly in first direction.
7. cooling component as claimed in claim 6, which is characterized in that each supporting spring has spaced multiple recessed
Portion and multiple interconnecting pieces, each the female portion accommodate at least one harmonica-shaped tube, and the interconnecting piece is for connecting the first bottom plate pair
Answer the position of the crossbeam.
8. battery pack as claimed in claim 3, which is characterized in that the heating component includes:
Support plate, detachably connected first bottom plate correspond to the position of the crossbeam；
Heating film is adhered to the support plate towards the side of first cabinet；
Thermally conductive gel, the thermally conductive gel are adhered to the heating film through heat cure towards the side of first cabinet, institute
Thermally conductive gel is stated backwards to the first bottom of the side of the heating film and the second top plate of second cabinet or first cabinet
Plate is in contact.
9. battery pack as claimed in claim 8, which is characterized in that the quantity of the heating film is multiple, the multiple heating
Film is arranged along first direction, has the interval of the exposure support plate, the support plate of the exposure and institute between adjacent heating film
Crossbeam is stated to be connected and fixed.
10. battery pack as described in any one of claim 1 to 9, which is characterized in that second cabinet further include:
Elastic supporting member for supporting optical member, between the temperature-controlled package and second cabinet, to the temperature-controlled package
Resilient support is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366328.XA CN109256511A (en) | 2018-11-16 | 2018-11-16 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366328.XA CN109256511A (en) | 2018-11-16 | 2018-11-16 | Battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109256511A true CN109256511A (en) | 2019-01-22 |
Family
ID=65043259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811366328.XA Pending CN109256511A (en) | 2018-11-16 | 2018-11-16 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109256511A (en) |
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| CN109950441A (en) * | 2019-03-15 | 2019-06-28 | 北京新能源汽车股份有限公司蓝谷动力***分公司 | Battery pack |
| CN110581301A (en) * | 2019-09-30 | 2019-12-17 | 芜湖天量电池***有限公司 | Power battery package structure |
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