CN108198981A - A kind of Battery case - Google Patents
A kind of Battery case Download PDFInfo
- Publication number
- CN108198981A CN108198981A CN201810105451.XA CN201810105451A CN108198981A CN 108198981 A CN108198981 A CN 108198981A CN 201810105451 A CN201810105451 A CN 201810105451A CN 108198981 A CN108198981 A CN 108198981A
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- Prior art keywords
- heat
- battery
- battery module
- plate
- soaking
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- 238000012546 transfer Methods 0.000 claims abstract description 46
- 238000001816 cooling Methods 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 238000002791 soaking Methods 0.000 claims description 173
- 239000012530 fluid Substances 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 9
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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
-
- 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
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
A kind of Battery case of present invention offer, Battery case provided by the invention, including：Upper shell, lower housing and battery module；Upper shell and lower housing surround the cavity of closing, and battery module is within the cavity；Heating unit and/or cooling device are provided on lower housing, heating unit and/or cooling device have heat transfer with battery module, and for transferring heat to battery module, cooling device is used for the heat derives of battery module to the external world heating unit.Battery case provided by the invention, by setting heating unit and/or cooling device, and heating unit and/or cooling device and battery module heat transfer, thus by external heat transfer to battery module, or the heat derives by battery module, to realize battery module and extraneous heat exchange, the good effect of heat exchange of battery module.
Description
Technical field
The present invention relates to battery technology field more particularly to a kind of Battery cases.
Background technology
With the development of society, the battery as new energy, has been subjected to the extensive concern of all circles.Battery, which refers to, fills electricity
Electrolyte solution and metal electrode, can be by chemical energy to generate the cup of electric current, slot or the segment space of other containers or clad vessel
It is converted to the device of electric energy.Battery case is a kind of instrument accommodated and use battery.
Through-hole is opened up on existing Battery case, is exchanged heat by through-hole to battery module in Battery case, makes battery
Module is operated within the scope of best temperature.
However, in use, the temperature difference between each battery module can be increasing, it is hot between each battery module
It measures unbalanced, is located at due to battery module on the bottom plate of Battery case, through-hole is only opened up on the bottom plate of Battery case, exchange heat
Effect is poor.
Invention content
The present invention provides a kind of Battery case, which is heated by setting heating unit and/or cooling device
Device and/or cooling device are used to carry out heat transfer, good effect of heat exchange with battery module.
The present invention provides a kind of Battery case, including：Upper shell, lower housing and battery module；The upper shell and institute
The cavity that lower housing surrounds closing is stated, the battery module is located in the cavity；
Be provided with heating unit and/or cooling device on the lower housing, the heating unit and/or cooling device with
The battery module has heat transfer, and the heating unit is used to transfer heat to the battery module, the cooling device
For by the heat derives of the battery module.
Optionally, Battery case provided by the invention, the heating unit and the cooling device lead to including medium
Road, the medium channel are used for for fluid heat transfer flow of media.
Optionally, Battery case provided by the invention, the heating unit be electric heater unit, the cooling device packet
Include medium channel.
Optionally, Battery case provided by the invention, the heating unit and the cooling device share same medium
Access.
Optionally, Battery case provided by the invention has heat exchanger tube and/or groove-type channel on the lower housing, described
Heat exchanger tube and/or groove-type channel form the medium channel.
Optionally, Battery case provided by the invention, the quantity of the battery module is multiple, is had on the lower housing
There is soakage device, the soakage device includes more first heat pipes, and all first heat pipes are used in multiple battery moulds
It conducts heat between block, to balance the temperature between multiple battery modules.
Optionally, Battery case provided by the invention, the lower housing include soaking plate and heat-conducting plate；
A part for the soaking plate is contacted with the battery module, another part of the soaking plate and the heat conduction
The part contact of plate；Alternatively, a part for the heat-conducting plate is contacted with the battery module, another portion of the heat-conducting plate
Divide and contacted with a part for the soaking plate；All first heat pipes are respectively positioned in the soaking plate, and first heat pipe is used
In the temperature of the uniform soaking plate；The heating unit and/or cooling device are located on the heat-conducting plate.
Optionally, Battery case provided by the invention, all first heat pipes are respectively positioned on the upper table of the soaking plate
Face, all first heat pipes are respectively positioned on the lower surface of the soaking plate or all first heat pipes be respectively positioned on it is described
The inside of hot plate.
Optionally, Battery case provided by the invention, all first heat pipe intervals be connected to the soaking plate and
Between the heat-conducting plate, the gap between first heat pipe forms the medium channel.
Optionally, Battery case provided by the invention, medium channel have inlet and outlet, and inlet and outlet is used respectively
It is flowed in and out in for fluid heat transfer medium.Further, Battery case provided by the invention, medium channel have import and
Outlet, inlet and outlet are respectively used to flow in and out for fluid heat transfer medium.
Battery case provided by the invention, by setting heating unit and/or cooling device, and heating unit and/or cold
But device and battery module heat transfer, so as to be led by external heat transfer to battery module or by the heat of battery module
Go out, to realize battery module and extraneous heat exchange, the good effect of heat exchange of battery module.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, also
Other attached drawings can be obtained according to these attached drawings.
Fig. 1 is the structure diagram of Battery case provided in an embodiment of the present invention；
Fig. 2 is the structure diagram that Battery case provided in an embodiment of the present invention arranges heat exchange access on lower housing；
Fig. 3 a- Fig. 3 c are the setting structure of several heat-conducting plates and soaking plate in Battery case provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 a- Fig. 4 c are that heat-conducting plate and soaking plate form medium channel in Battery case provided in an embodiment of the present invention
One schematic diagram；
Fig. 5 is that heat-conducting plate and soaking plate composition the another of medium channel show in Battery case provided in an embodiment of the present invention
It is intended to；
Fig. 6 is the distribution schematic diagram of the first heat pipe in soaking plate in Fig. 5；
Fig. 7 is the explosive view of battery module in Battery case provided in an embodiment of the present invention；
Fig. 8 is an explosive view of battery component in Fig. 7 battery modules；
Fig. 9 is another explosive view of battery component in Fig. 7 battery modules；
Figure 10 is the another explosive view of battery component in Fig. 7 battery modules；
Figure 11 a- Figure 11 g are the structure type figure of heat conduction plate body in Battery case provided in an embodiment of the present invention；
Figure 12 a- Figure 12 c are the schematic diagram of the notching construction of Battery case middle frame provided in an embodiment of the present invention；
Figure 13 a are a structure diagram of soaking plate component in Fig. 7 battery modules；
Figure 13 b are another structure diagram of soaking plate component in Fig. 7 battery modules；
Figure 14 a are the side view diagram of soaking plate component in Battery case provided in an embodiment of the present invention；
Figure 14 b are another side view of soaking plate component in Battery case provided in an embodiment of the present invention；
Figure 15 a- Figure 15 h are several structure diagrams of soaking plate component in Battery case provided in an embodiment of the present invention；
Figure 16 a- Figure 16 d are the signal of the placement location of heat source or low-temperature receiver in Battery case provided in an embodiment of the present invention
Figure.
Reference sign：
1- Battery cases；2- upper shells；3- lower housings；4- battery modules；5- battery components；6- battery cores；7- is pushed up
Portion's cover board；8- subframes；9- heat conduction plate bodys；The first heat-conducting parts of 10-；The second heat-conducting parts of 11-；12- frames；13- slots；14- is led
Hot face；15- soaking plate components；16- soaking portion；17- heat-conducting parts；18-L shape plate bodys；19- frames；The second heat pipes of 20-；22- heat
Source and/or low-temperature receiver；23- heat exchange accesses；24- imports；25- is exported；26- soaking plates；27- heat-conducting plates；The first heat pipes of 28-；29-
Groove；30- medium channels；31- frames.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without making creative work, shall fall within the protection scope of the present invention.
Before description of specific embodiments of the present invention, first some basic concepts are explained：Battery
Module：Represent a component that can be completely placed on the lower housing of Battery case.
Battery component：Represent the component wrapped up in battery module by peripheral soaking plate component, wherein, battery component
Including components such as interlayer, the cover boards between multiple battery cores being stacked and battery core.
Temperature equalization or soaking：It refers to mutually transmitting heat between each component, reduces temperature difference, regional balance, ability
Field technique personnel are appreciated that it is not that temperature between proper each component is equal.
Thermo-contact：Refer to carry out heat conduction by way of heat transfer between two heat transfer components, both included directly being close to
Formula heat transfer is to be close between heat-conduction component and two components also including having heat-conduction part between two heat transfer components
Formula heat transfer, i.e. indirect heat transmission.
Battery case provided in an embodiment of the present invention, for placing battery module.Battery module needs in low temperature environment
It first to be preheated, ensure the performance of battery module；Or due to battery module during the work time, a large amount of heat can be generated
Amount causes battery module temperature to increase, and so as to influence the performance of battery module, therefore, battery module has usually been required for changing
The passage of heat makes battery module operate within the scope of best temperature.In the prior art, it is typically opened up on Battery case logical
Hole exchanges heat to battery module in Battery case by through-hole, battery module is made to operate within the scope of best temperature.So
And in use, the temperature difference between each battery module can be increasing, and heat is unbalanced between each battery module, by
It is located on the bottom plate of Battery case in battery module, through-hole is only opened up on the bottom plate of Battery case, heat transfer effect is poor.For a long time
Using the performance that can damage battery module, so as to influence the service life of battery module.
The embodiment of the present invention consider these situations, propose a kind of Battery case, the Battery case include upper shell, under
Housing and battery module；Upper shell and lower housing surround the cavity of closing, and battery module is located at upper shell and lower housing surrounds
In cavity；Heating unit and cooling device are provided on lower housing, heating unit and cooling device are used to carry out with battery module
Heat transfer, heating unit are used for external heat transfer to battery module, and cooling device is used to lead the heat of battery module
Go out.Battery case provided in an embodiment of the present invention, by setting heating unit and cooling device, heating unit and cooling device
For carrying out heat transfer, good effect of heat exchange with battery module, heating unit is used for external heat transfer to battery module,
Cooling device is used to, by the heat derives of battery module, so that keeping heat balance between each battery module, improve electricity
The performance of pond module, and delay the service life of battery module.
The present invention provides a kind of Battery case, Fig. 1 is the structural representation of Battery case embodiment provided by the invention
Figure.As shown in Figure 1, Battery case 1 provided in an embodiment of the present invention includes：Upper shell 2, lower housing 3 and battery module 4；Upper casing
Body 2 and lower housing 3 surround the cavity of closing, and battery module 4 is located in the cavity that upper shell 2 and lower housing 3 surround；Lower housing 2
On be provided with heating unit and/or cooling device, heating unit and/or cooling device have heat transfer with battery module 4, add
For transferring heat to battery module 4, cooling device is used for the heat derives of battery module to the external world thermal.
Battery case provided in this embodiment, by setting heating unit and/or cooling device, and heating unit and/or
Cooling device and battery module heat transfer, thus by heat of the external heat transfer to battery module or by battery module
Export, to realize battery module and extraneous heat exchange, the good effect of heat exchange of battery module.
Fig. 2 is the structure diagram of lower housing and cooling device in Battery case provided in an embodiment of the present invention.Such as Fig. 2
Shown, optionally, Battery case 1 provided in this embodiment, heating unit and cooling device include medium channel 30, medium
Access 30 is used for for fluid heat transfer flow of media；Heating unit and cooling device use respectively independent medium channel 30, mutually
Between do not influence, heat exchange when it is easy to operate；It is exchanged heat by fluid heat transfer medium and battery module 4, makes the effect of heat exchange
Fruit is controllable, can use the fluid heat transfer medium of different temperatures according to different heat exchange needs, such as the requirement of heat-exchange time.
Optionally, Battery case 1 provided in this embodiment, heating unit are electric heater unit, and cooling device includes medium
Access 30.
Optionally, Battery case 1 provided in this embodiment, heating unit and cooling device are same medium channel 30.
By controlling the temperature of fluid heat transfer medium in the medium channel 30, the heat exchange between medium channel 30 and battery module 4 is realized,
Save the space of Battery case.
As a kind of optional mode, there is heat exchanger tube and/or groove-type channel, heat exchanger tube and/or groove profile on lower housing 3
Channel forms medium channel 30.It in other words,, can be by under for medium channel 30 during concrete implementation
Heat exchanger tube on housing 3 is set and/or is realized by setting groove-type channel on lower housing 3.
Further, Battery case 1 provided in this embodiment, medium channel 30 have inlet and outlet, inlet and outlet
It is respectively used to flow in and out for fluid heat transfer medium.
It should be noted that medium channel 30 is according to the different uses of the distribution of battery module 4 carried on lower housing 3
It designs below：For the region that the distribution of battery module 4 is concentrated, medium channel 30 is densely distributed and/or 30 cross section of medium channel
Product is larger, conversely, to be distributed relatively not intensive and/or 23 cross-sectional area of medium channel smaller for medium channel 30, in this way, utilizing
The structure of medium channel 30 can realize multiple 4 soaking of battery module unevenly distributed and heat exchange simultaneously.
Further, in a kind of possible realization method, for the lower housing 3 of Battery case 1, not only
Carry the function of heat exchange, it is also necessary to undertake the equal heat effect between the battery module 4 arranged thereon.According to medium channel 30
Density distribution or cross-sectional area variation, enable to lower housing 3 that can have both above two function.Fig. 2 is the present invention
The Battery case that embodiment provides arranges the structure diagram of heat exchange access on lower housing, as shown in Fig. 2, further including heat exchange
Access 23, the heat exchange access 23 include import 24 and outlet 25, and heat exchange access 23 arranges that heat exchange is logical along the edge of lower housing 3
Road 23 forms the access of a series connection, at the middle part of heat exchange access 23, according to the position of the arrangement of battery module 4, sets respectively
The access of a plurality of parallel connection is equipped with, and is bent on the larger region of calorific value, the pipeline of the alternate path, so as to extend
The residence time of fluid heat transfer medium, heat exchange efficiency is improved relative to other regions, lower housing is thus furthermore achieved
3 soaking and the function of heat exchange.
In another implementation, the quantity of battery module 4 is multiple, and multiple battery modules 4 are spaced from each other, lower casing
On body 3 have soakage device, soakage device include more first heat pipes 28, the first heat pipe 28 be used for multiple battery modules 4 it
Between conduct heat, to balance the temperature between multiple battery modules 4.
Wherein, lower housing 3 includes soaking plate 26 and heat-conducting plate 27；Specifically, for lower housing 3, list can also be set
Only soakage device and heat-transfer device, to realize the function of above-mentioned soaking and heat exchange, wherein, soakage device for example can be equal
Hot plate 26, heat-transfer device for example can be heat-conducting plate 27.
A part for soaking plate 26 is contacted with battery module 4, another part of soaking plate 26 and a part for heat-conducting plate 27
Contact；Alternatively, a part for heat-conducting plate 27 is contacted with battery module, another part of heat-conducting plate 27 with one of soaking plate 26
Tap is touched；
All first heat pipes 28 are respectively positioned in soaking plate 26, and the first heat pipe 28 is used for the temperature of uniform soaking plate 26,
In, the first heat pipe 28 is respectively positioned on the upper surface of soaking plate 26, the first heat pipe 28 is respectively positioned on the lower surface or first of soaking plate 26
Heat pipe 28 is respectively positioned on the inside of soaking plate 26.
Heating unit and/or cooling device are located on heat-conducting plate 27.
Specifically, Fig. 3 a- Fig. 3 c are that several heat-conducting plates and soaking plate are set in Battery case provided in an embodiment of the present invention
Put structure diagram.As shown in Fig. 3 a- Fig. 3 c, lower housing 3 includes soaking plate 26 and heat-conducting plate 27, and soaking plate 26, which is arranged on, to be led
The top of hot plate 27, soaking plate 26 includes more first heat pipes 28, and the first heat pipe 28 is arranged in soaking plate 26, and first
The arrangement of heat pipe 28 can include the one or more of following three kinds of modes：It is close to the inside of soaking plate 26, i.e., close to electricity
The side (such as Fig. 3 a) of pond module 4, the outside for being close to soaking plate 26 side (such as Fig. 3 b) of battery module or are embedded in
In soaking plate 26 (such as Fig. 3 c), pass through the first heat pipe 28 so that the temperature of soaking plate 26 is uniformly distributed.
Furthermore it is possible to which heat-conducting plate 27 to be arranged on to the opposite side of soaking plate 26, heating unit is arranged on heat-conducting plate 27
And/or cooling device.
It needs to illustrate, in Fig. 3 a- Fig. 3 c, is said so that soaking plate 26 is on heat-conducting plate 27 as an example
It is bright, can also have other embodiments, such as soaking plate 26 wraps up heat-conducting plate 27, heat-conducting plate 27 wraps up soaking plate 26 or
Person's heat-conducting plate 27 is arranged on soaking plate 26, to sum up, soaking plate 26 or the part and battery of heat-conducting plate 27
The heat-conducting part thermo-contact of the soaking plate component of module, another part then have contact surface with heat-conducting plate or soaking plate.
Further, when the lower housing 3 of Battery case 1 includes soaking plate 26 and heat-conducting plate 27, soaking plate 26 utilizes the
One heat pipe 28 carries out soaking, and heating unit and/or cooling device are disposed on heat-conducting plate 27.For the heating unit or cooling
Device, most common form are medium channels 30, and the formation for medium channel 30 can usually arrange on heat-conducting plate 27
Groove-type channel or heat exchanger tube are realized.Since soaking plate 26 and heat-conducting plate 27 have the face that contacts with each other, it can utilize
This contacts with each other face to form the fluid media (medium) access.
Fig. 4 a- Fig. 4 c are that several heat-conducting plates and soaking plate composition medium lead in Battery case provided in an embodiment of the present invention
Line structure schematic diagram.As shown in Fig. 4 a- Fig. 4 c, be with soaking plate 26 on heat-conducting plate 27 when, how to form medium channel 30
For illustrate, for soaking plate 26 and heat-conducting plate 27 other structures form when form the mode of medium channel 30, it is and equal
Similar when hot plate 26 is on heat-conducting plate 27, details are not described herein again.In fig.4, it is set in the bottom surface of soaking plate 26 multiple recessed
Slot 29 is combined to form medium channel 30 with the top surface of heat-conducting plate 27；In Fig. 4 b, multiple grooves are set in the top surface of heat-conducting plate 27
29, form medium channel 30 with the bottom surface of soaking plate 26；In Fig. 4 c, on heat-conducting plate 27 and the contact surface of soaking plate 26, respectively
Corresponding multiple grooves 29 are formed, so as to collectively form medium channel 30.
Fig. 5 is that heat-conducting plate and soaking plate composition the another of medium channel show in Battery case provided in an embodiment of the present invention
It is intended to.As shown in figure 5, using the gap between more first heat pipes 28 in soaking plate 26, medium channel 30 is formed.That is institute
There is being connected between heat-conducting plate 27 and soaking plate 26 for the first heat pipe 28 interval, the gap between the first heat pipe 28 forms medium
Access 30.Specifically, the first heat pipe 28 is protrusively provided in the bottom of soaking plate 26, and sealed with the top of heat-conducting plate 27
It connects, the gap between heat pipe 28 is flowed for fluid media (medium).Fig. 6 is the distribution schematic diagram of the first heat pipe in soaking plate in Fig. 5,
As shown in fig. 6, the medium channel 30 that the first heat pipe 28 is formed has inlet and outlet.Certainly, for aforesaid way, the first heat
The arranged of pipe 28 is regular, it will be understood by those skilled in the art that it can be set as other according to the actual needs
Form.
Fig. 7 is the explosive view of battery module in Battery case provided in an embodiment of the present invention.As shown in fig. 7, battery module
4 include battery component 5 and soaking plate component 15, and battery component 5 includes multiple battery cores 6 being stacked, battery
At least one side of component 5 has thermal conductive surface 14；Soaking plate component 15 includes soaking portion 16 and heat-conducting part 17, battery core pack
There is heat transfer between the thermal conductive surface 14 of 5 side of part and soaking portion 16；Heat-conducting part 17 respectively with the bottom of battery component 5 and
There is heat transfer, soaking plate component 15 includes at least one piece the two the first heat pipes 20, every the two the first between Battery case 1
A part for heat pipe 20 is arranged in soaking portion 16, and another part is arranged in heat-conducting part 17, with soaking portion 16 and heat-conducting part 17 it
Between carry out heat transfer.
Specifically, the soaking plate component 15 of battery module 4 includes soaking portion 16 and heat-conducting part 17, soaking portion 16 and battery
The thermal conductive surface 14 of 5 side of core assembly thermally contacts, heat-conducting part 17 and the bottom of battery component 5 and the lower housing of Battery case 1
3 thermo-contacts, with by the soaking portion 16 of soaking plate component 15 and heat-conducting part 17, the heat between balanced each battery core 6.
In addition, soaking plate component 15 is arranged in including at least first heat pipe 20, a part for every first heat pipe
Hot portion 16, another part are arranged in heat-conducting part 17, in this way, soaking and the thermal conduction characteristic of the first heat pipe 20 can be utilized, realize electricity
Soaking and battery module and extraneous heat exchange between pond core 6.
Optionally, it between thermal conductive surface 14 and soaking portion 16, between the bottom of heat-conducting part 17 and battery component 5 and leads
Heat exchange pattern between hot portion 17 and Battery case 1 includes one or more of：It is in direct contact, connected by heat-conducting medium
It connects.
Specifically, it between thermal conductive surface 14 and soaking portion 16, between the bottom of heat-conducting part 17 and battery component 5 and leads
Between hot portion 17 and Battery case 1, it can be direct close contact heat transfer or hot biography is carried out by heat-conducting medium
It leads, i.e. indirect heat transmission, wherein, heat-conducting medium can for example be led for heat-conducting silicone grease, heat conductive silica gel, Graphite pad, soft silica gel
Heat pad or phase-change heat conductive material etc..
It is engraved structure in the middle part of frame 31 in addition, being additionally provided with frame 31 in the outside of battery component 5, the side of frame 31
Edge is fixedly connected with the edge of battery component 5 by screw, so as to compress battery core 6.
Further, heat conductive pad can be also set between the thermal conductive surface 14 outside soaking plate component 15 and battery component 5
Piece, to realize battery component 5 and extraneous heat exchange so that battery is operated within the scope of reasonable temperature.
Battery case provided in an embodiment of the present invention, battery module include battery component and soaking plate component, the battery
Core assembly includes multiple battery cores being stacked, and at least one side of battery component has thermal conductive surface；Soaking plate group
Part includes soaking portion and heat-conducting part, has heat transfer between the thermal conductive surface of battery component side and soaking portion；Heat-conducting part is distinguished
There is heat transfer between the bottom of battery component and Battery case, soaking plate component includes the first heat pipe, every first heat
A part for pipe is arranged in soaking portion, and another part is arranged in heat-conducting part, to carry out hot biography between soaking portion and heat-conducting part
It leads.Due to having heat transfer between the thermal conductive surface of battery component side and the soaking portion of soaking plate component, soaking plate component
Heat-conducting part has heat transfer between the bottom of battery component and Battery case respectively, every first in soaking plate component
A part for heat pipe is arranged in soaking portion, and another part is arranged in heat-conducting part, with special using the soaking of the first heat pipe and heat conduction
Property, carry out heat transfer between soaking portion and heat-conducting part, realize soaking between battery core and battery module with it is extraneous
Heat exchange so that keeping heat balance between each battery core, improves the performance of battery, and delays making for battery
Use the service life.In addition, due to heat-conducting part and the bottom of battery component and Battery case lower casing brought into thermal contact so that entire electricity
The volume of pond module reduces, and efficiently utilizes the space of Battery case.
Below to a variety of specific realities of battery module 4, battery component 5, soaking plate component 15 and Battery case 1
The mode of applying is described.For the design of specific component in implementation below, can independent or arbitrary combination application in figure
In 1 or Fig. 7, to replace the component with identical function；Individual component or arbitrary combination application be can also be used as in it
In his Battery case.
Fig. 8 is an explosive view of battery component in Fig. 7 battery modules.As shown in figure 8, battery component 5 further include it is more
A heat conduction plate body 9, for the heat conduction plate body 9 between two adjacent battery cores 6, heat conduction plate body 9 includes be connected with each other the
One heat-conducting part 10 and the second heat-conducting part 11, the first heat-conducting part 10 and adjacent with heat conduction plate body 9 two 6 heat transfer of battery core,
Second heat-conducting part 11 exposes to the side of battery core 6 and forms thermal conductive surface.Specifically, battery component 5 includes multiple stackings
The battery core 6 of setting, the top of multiple battery cores 6 has top blind flange 7, between two adjacent battery cores 6
Heat conduction plate body 9 is provided with, heat conduction plate body 9 includes the first heat-conducting part 10 and the second heat-conducting part 11, the first heat-conducting part 10 and battery
Body 6 thermally contacts, and the second heat-conducting part 11 exposes to the side of battery core 6, and is bent relative to the first heat-conducting part 10, so as to structure
Into the thermal conductive surface 14 of 5 side of battery component.In addition, heat conduction plate body 9 can be porous plate, graphite flake, heat transmission fin or multiple
Heat pipe closes heat tubesheet formed etc. with hardened.
Fig. 9 is another explosive view of battery component in Fig. 7 battery modules.As shown in figure 9, battery component 5 further includes
Multiple frames 12, for the frame 12 between two adjacent battery cores 6, at least one side of frame 12 has fluting
13, heat conduction plate body 9 is located in fluting, and the first heat-conducting part 10 of heat conduction plate body 9 is located in frame 12, and adjacent with heat conduction plate body 9
Two batteries 6 thermally contact, the second heat-conducting part 11 is located at outside frame, and is bent relative to the first heat-conducting part 10, so as to form
The thermal conductive surface 14 of 5 side of battery component.Wherein, heat conduction plate body can also be porous plate, graphite flake, heat exchange fin, multiple
Heat pipe closes heat tubesheet formed etc. with hardened.When using porous plate, heat exchange fin when the material for being easy to bending is made, can be with
It makes in the following ways：Heat conduction plate body is placed into the fluting of frame, is then bent, formed the first heat-conducting part and
Second heat-conducting part；Or it is first bent to form the second heat-conducting part at one end, it is then placed into frame, the both sides of frame all have
During the second heat-conducting part, then the other end of heat conduction plate body is bent to form the second heat-conducting part.
Figure 10 is the another explosive view of battery component in Fig. 7 battery modules.As shown in Figure 10, battery component 5 includes
Multiple battery cores 6 being stacked, multiple frames 12 and top blind flange 7, wherein, between every two adjacent battery cores 6
One frame 12 is set, and the side of each frame 12 has fluting 13, and each fluting 13 is correspondingly arranged on a heat conduction plate body 9, heat-conducting plate
Body 9 is positioned in fluting, and heat conduction plate body 9 includes the first heat-conducting part 10 and the second heat-conducting part 11, and the first heat-conducting part 10 is located at frame
In 12, adjacent with frame 12 two battery cores 6 thermally contact, and the second heat-conducting part 11 is located at outside frame 12, in every layer of frame
Multiple heat conduction plate bodys 9 the first heat-conducting part 10 it is seamless spliced or with gap.It, can be effective using such design method
The deformation of heat conduction plate body, especially fin between battery core caused by ground dispersed cell core temperature change, furthermore, it is possible to
Local heating is carried out to battery core as needed, so as to improve the flexibility of battery thermal management.
Optionally, the area of multiple first heat-conducting parts 10 in frame 12 may be the same or different.
In the present embodiment, due to setting heat conduction plate body between two adjacent battery cores, electricity can be realized in this way
Soaking between the core of pond.
Further, for the heat conduction plate body described in Fig. 8-Figure 10, the structure of the first heat-conducting part and the second heat-conducting part
Form in addition to shown in Fig. 8-Figure 10, can also have other structure types.Figure 11 a- Figure 11 g are the embodiment of the present invention
The structure type figure of heat conduction plate body in the Battery case of offer, wherein, the second heat-conducting part 11 can be along the first heat-conducting part 10
In-plane extends outside frame, and in Figure 11 a, the second heat-conducting part 11 extends along the side of the first heat-conducting part 10, such as schemes
The second heat-conducting part 11 extends along the both sides of the first heat-conducting part 10 in 11b, in this case, leading outside battery component 5
Hot face 14 is formed by the surface of the second heat-conducting part 11.In addition, as more common form, the second heat-conducting part 11 is led with first
Hot portion 10 is not in one plane.In Figure 11 c, the second heat-conducting part 11 is vertical with the first heat-conducting part 10, and both sides are prolonged
It is identical to stretch direction；The second heat-conducting part 11 is vertical with the first heat-conducting part 10 in Figure 11 d, and the extending direction of both sides is different；Figure 11 e
In the second heat-conducting part 11 it is vertical with the first heat-conducting part 10, and the extending direction of both sides is identical；In Figure 11 f, the second heat-conducting part 11 has
There is arcuate structure, surface constitutes the thermal conductive surface 14 outside battery component 5, and tubulose heat exchange can be accommodated in arcuate structure
Structure；In Figure 11 g, the second heat-conducting part 11 has radial configuration, and surface constitutes the thermal conductive surface 14 outside battery component 5.
Certainly, embodiment of above is to enumerate, other various possible shapes also belong to the protection of the embodiment of the present invention
Range, furthermore it is possible to choose the structure of the first heat-conducting part and the second heat-conducting part according to actual conditions, for the first heat-conducting part and
The specific constructive form of second heat-conducting part, this is not restricted for the embodiment of the present invention.
Since the first heat-conducting part and the second heat-conducting part can be designed as multiple structural forms, it is possible thereby to according to practical need
The structure of suitable first heat-conducting part and the second heat-conducting part is selected, to carry out soaking to battery core, it is possible thereby to improve electricity
The flexibility of pond heat management.
In addition, for the heat conduction plate body described in Fig. 8-Figure 10, the first heat-conducting part and the second heat-conducting part may be used not
Same material is made or its thickness is different.Optionally, the structure of the first heat-conducting part and the second heat-conducting part is identical,
But different structures can also be used, for example, the first heat-conducting part uses perforated plate construction, entity harden structure or multiple heat pipes and plate
With reference to one of heat pipe harden structure, the second heat-conducting part is using perforated plate construction, entity harden structure or multiple heat pipes and hardened conjunction
One of heat pipe harden structure.
Further, it for the fluting in the frame described in Fig. 9 and Figure 10, in addition to shown in Fig. 9 and Figure 10, goes back
There can be other structure types.Figure 12 a- Figure 12 c are the fluting knot of Battery case middle frame provided in an embodiment of the present invention
The schematic diagram of structure such as Figure 12 a, can form fluting 13, in Figure 12 b, in frame 12 on the top of 12 side wall of frame or lower part
The middle part setting fluting 13 of side wall；In Figure 12 c, frame 12 is made of upper and lower two subframes 8, and fluting 13 is located at two sub- frames
Between frame 8.
Figure 13 a are a structure diagram of soaking plate component in Fig. 7 battery modules；Figure 13 b are equal in Fig. 7 battery modules
Another structure diagram of hot plate component.As shown in Figure 13 a- Figure 13 b, soaking plate component 15 further includes L shapes plate body 18, the L shapes
One side of plate body 18 forms soaking portion 16, and another side forms heat-conducting part 17, and more first heat pipes 20 are embedded in L shapes plate bodys 18, and
It is connected between soaking portion 16 and heat-conducting part 17.
In addition, as shown in Fig. 7, Figure 13 a and Figure 13 b, hollow out is set between soaking plate component 15 and battery component 5
Frame 31, the side of hollow out frame 31 are fixedly connected with battery component 5, and L shapes plate body 18 is fixedly connected with hollow out frame 31.
Specifically, as shown in Figure 13 a- Figure 13 b, soaking plate component 15 includes L shapes plate body 18 and the first heat pipes of Duo Gen 20,
Wherein, in more first heat pipe 20 insertion L shapes plate bodys 18, a part for L shapes plate body 18 forms soaking portion 16, another part structure
Into heat-conducting part 17, at least part of every first heat pipe 20 is located at L shapes plate body 18 and forms in the part in soaking portion 16, such as：
In Figure 13 a, whole section of the first heat pipe 20 is respectively positioned on soaking portion 16, L shapes plate body 18 and the battery component 5 of soaking plate component 15
External hollow out frame is fixedly connected.In Figure 13 b, one section of the first heat pipe 20 is located at soaking portion 17, and one section is located at heat-conducting part
17, the L shapes plate body 18 of soaking plate component 15 is fixedly connected with the hollow out frame outside battery component 5.In addition, L shapes plate body 18
It is made from a material that be thermally conductive.
Further, Figure 14 a are the side view diagram of soaking plate component in Battery case provided in an embodiment of the present invention；Figure
14b is another side view of soaking plate component in Battery case provided in an embodiment of the present invention, as shown in Figure 14 a- Figure 14 b,
Hot plate component 15 further includes frame 19, and the cross section of frame 19 includes flat segments and is located at flat segments both ends respectively, and relatively flat
Two bending segments of straight section bending, the shape inside that more first heat pipes 20 are located at flat segments and bending segment is surrounded.
Specifically, for the structure of soaking plate component 15, can also be used frame and heat pipe combination form form namely
Hollow out frame outside battery component 5 is formed on soaking plate component 15, and is arranged on the outside of the first heat pipe 20.
As shown in Figure 14 a- Figure 14 b, soaking plate component 15 includes frame 19 and the first heat pipes of Duo Gen 20, wherein, frame 19 has side
Face, every first heat pipe 20 is located at 19 inside of frame, and is thermally contacted with the thermal conductive surface 14 of 5 side of battery component.
In addition, frame 19 further include it is at least one be located at flat segments both ends, and relatively flat straight section bending bending segment,
That is the top surface and/or bottom surface of frame 19, top surface or bottom surface form the heat-conducting part 17 of soaking plate component 15, due to by hollow out frame
It is arranged on soaking plate component 15 with heat pipe, it is no longer necessary to plate body be set, can effectively mitigate soaking plate component 15 in this way
Weight.Also, some or all of structure of frame 19 may be used the light materials such as plastics or resin and be made, and in this way can
Further mitigate the weight of soaking plate component 15.
Further, in Figure 14 a, whole section of the first heat pipe 20 is respectively positioned in the recess portion of 19 side of frame, in this way,
17 and first heat pipe 20 of heat-conducting part of hot plate component 15 conducts heat, and then realization and external heat-exchanging.In Figure 14 b, frame 19
Top and bottom are additionally provided with, one section of the first heat pipe 20 is located in the recess portion of frame facet, and one section passes through the curved of frame bottom surface
At angle, the heat-conducting part 17 of bottom surface is formed.It is understood that this section of heat pipe of heat-conducting part 17 can also be directly in framework bottom
The top in face, and it is not passed through frame.
In a kind of possible realization method, frame 19 is fixedly connected with battery component 5 using screw.
Specifically, the top and bottom of frame 19 are fixed by top and bottom of the bolt respectively with battery component, from
And compress battery component.In this way, frame both carries heat pipe in itself, the soaking to battery component and heat conduction are realized, again
It can play the role of compressing battery component, not only so that the volume of battery module is substantially reduced, but also do not need to additional beam
Ligature or pull rod can be realized as the fastening of battery core.
For the soaking plate component shown in Figure 13 a- Figure 13 b and Figure 14 a- Figure 14 b, diversified forms may be used in structure,
To form soaking portion and heat-conducting part, and matched using its structure with battery component.In general, using following arrangement
Mode can be effectively reduced the volume of battery module：Soaking portion and heat conduction thermal contact, heat-conducting part are located at battery component
In the space that top surface and/or bottom surface extend along battery component side namely heat-conducting part at the top of battery component and/or
Projection in the vertical direction of bottom is entirely located in the top and/or bottom of battery component.Specifically, Figure 15 a- Figure 15 h are
Several structure diagrams of soaking plate component in Battery case provided in an embodiment of the present invention, in fig. 15 a, soaking plate component
15 be L-shaped, from a side wrap battery component 5；In Figure 15 b, soaking plate component 15 is L shapes, and is wrapped from multiple sides
Wrap up in battery component 5；In Figure 15 c, soaking plate component 15 is spill, and from multiple side wrap battery components 5, soaking
The bottom surface of plate component 15 is continual plane.It will be understood by those skilled in the art that for three kinds of above-mentioned structure types,
The side of soaking plate component is soaking portion, and bottom surface is heat-conducting part, is mainly used for battery component and is placed under Battery case
On housing, external heat source or low-temperature receiver are equipped on lower housing, in this way by soaking plate component by external heat transfer
It is exported outward to battery component or by the heat of battery component.In addition, using the design so that the battery module
Bottom has smaller area, so as to reduce the area occupied of battery module, convenient for arranging more batteries in Battery case
Module.
It is apparent that above-mentioned heat-conducting part can also be located at the top of battery component or be set simultaneously in upper and lower part
It puts, it is not necessary to be limited to only carry out external heat-exchanging from the lower housing of Battery case.Similarly, for shown in Figure 15 d- Figure 15 f
The structure of several soaking plate components, is equally applicable.
In Figure 15 d, soaking plate component 15 is bracket " [" shape, and from a side wrap battery component 5；Scheming
In 15e, soaking plate component 15 is bracket " [" shape, and from multiple side wrap battery components 5；For Figure 15 d- Figure 15 e
Structure type, since soaking plate component has a top and bottom simultaneously, and top and bottom by bolt respectively with battery
The top and bottom of component are fixed, so as to compress battery component.In Figure 15 f, soaking plate component 15 is from multiple side wraps
Battery component 5, its underpart is connected, and top compresses the top of battery component 5.It, can be only for Figure 15 f
Bolt is set on the top of battery component, and the compression of battery component is realized in cooperation bottom surface.In short, using aforesaid way, no
The soaking to battery component and heat conduction are only realized, and can play the role of compressing battery component.So so that battery
The volume of module is substantially reduced, and does not need to additional restraining or pull rod can be realized as the fixation of battery core.With
In figure 15 above a- Figure 15 f, the heat-conducting part of soaking plate component in soaking portion not same plane with extending, in concrete implementation process
In, as long as meeting projection of the heat-conducting part at the top of battery component and/or in the vertical direction of bottom is entirely located in battery component
Top and/or bottom in this condition, the volume of battery module can be reduced.
Figure 15 g- Figure 15 h show the structure type that heat-conducting part extends in the same plane with soaking portion, soaking plate group
The projection of the heat-conducting part of part in vertical direction just constitutes the top of battery component and/or the outer periphery of bottom.Specifically
Ground, in Figure 15 g, the heat-conducting part of the soaking plate component 15 of 5 both sides of battery component is upwardly extended along soaking portion, using this
The design of sample not bent when arranging heat pipe, reduce cost, improve heat exchange efficiency；If necessary to battery
Component is compressed, then can set the plate of extension in the side of soaking plate component, blending bolt is fixed with battery component.
In Figure 15 h, the heat-conducting part of the soaking plate component of battery component both sides extends along different directions.
In addition, for external heat source and low-temperature receiver, battery module is needed the heat of battery component through soaking plate component
Amount sheds or absorbs heat from the external world outward.It is located at battery module lower part generally, due to the heat-conducting part of soaking plate component, because
This, heat source and/or low-temperature receiver can be arranged on the lower housing of Battery case 1.It will be appreciated by persons skilled in the art that heat source
Or low-temperature receiver can also be according to the difference of the position of the heat-conducting part of soaking plate component, and it is arranged on other positions.
Due in Figure 15 a- Figure 15 f, the heat-conducting part 17 of soaking plate component 15 at least with the top surface and bottom of battery component 5
One in face is parallel, at this point, heat source and/or low-temperature receiver can be arranged in battery component 5 top and/or bottom with it is corresponding
Soaking plate component heat-conducting part between or the heat-conducting part of soaking plate component and the top of battery component and/or Base Heat
Contact, heat source and/or low-temperature receiver are arranged on the outside of soaking plate component heat-conducting part.
Figure 16 a- Figure 16 d are the signal of the placement location of heat source or low-temperature receiver in Battery case provided in an embodiment of the present invention
Figure, as illustrated in fig 16 a, by taking the arrangement of soaking plate component in Figure 15 e as an example, heat source and/or low-temperature receiver 22 are arranged in entirely
The lower section of hot plate component 15 specifically, is arranged in the outside of the heat-conducting part 17 of soaking plate component；And show A-H in Figure 16 b
Eight positions, i.e. heat source and/or low-temperature receiver 22 can be arranged at the position of at least one of above-mentioned eight positions, wherein, A-D
Four positions, the as outside of soaking plate component heat-conducting part, tetra- positions of E-G are soaking plate component heat-conducting part and battery
At the top of component or between bottom.
For the structure type of the soaking plate component in Figure 15 g, heat source and/or low-temperature receiver 22 can be arranged in the equal of both sides
Between the heat-conducting part of hot plate component, as shown in figure 16 c, in this way, then heat source and/or low-temperature receiver 22 can be with battery modules as whole
The component of body, and heat source and/or low-temperature receiver 22 can be fluid media (medium) flowing pipelines, and fluid is set on heat source and/or low-temperature receiver 22
The entrance and exit of medium, the fluid media (medium) directly outside docking, installation when needed is replaced all very convenient.In addition, by
Entrance or outlet setting control valve, then can realize accurate heat management control.
Figure 16 d then show the heat source of the battery module in Figure 15 h and/or a kind of modes of emplacement of low-temperature receiver, wherein, heat
Source and/or low-temperature receiver 22 can be arranged on different positions, and the soaking plate component with battery component both sides thermally contacts respectively,
Realize the independent control of the heating of battery component and cooling.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；
Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its
It can still modify to the technical solution recorded in foregoing embodiments either special to which part or whole technologies
Sign carries out equivalent replacement；And these modifications or replacement, various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
The range of technical solution.
Claims (10)
1. a kind of Battery case, which is characterized in that including：Upper shell, lower housing and battery module；
The upper shell and the lower housing surround the cavity of closing, and the battery module is located in the cavity；
It is provided with heating unit and/or cooling device on the lower housing, the heating unit and/or cooling device and the electricity
Pond module has heat transfer, and for the heating unit for transferring heat to the battery module, the cooling device is used for will
The heat derives of the battery module.
2. Battery case according to claim 1, which is characterized in that the heating unit and the cooling device include
Medium channel, the medium channel are used for for fluid heat transfer flow of media.
3. Battery case according to claim 1, which is characterized in that the heating unit is electric heater unit, described cold
But device includes medium channel.
4. Battery case according to claim 2, which is characterized in that the heating unit and the cooling device share together
One medium channel.
5. Battery case according to claim 2, which is characterized in that there is heat exchanger tube and/or groove profile on the lower housing
Channel, the heat exchanger tube and/or groove-type channel form the medium channel.
6. Battery case according to claim 2, which is characterized in that the quantity of the battery module is multiple, under described
There is soakage device, the soakage device includes more first heat pipes, and all first heat pipes are used in multiple institutes on housing
It states and conducts heat between battery module, to balance the temperature between multiple battery modules.
7. Battery case according to claim 6, which is characterized in that the lower housing includes soaking plate and heat-conducting plate；
A part for the soaking plate is contacted with the battery module, another part of the soaking plate and the one of the heat-conducting plate
Part contacts；Alternatively, a part for the heat-conducting plate is contacted with the battery module, another part of the heat-conducting plate with it is described
The part contact of soaking plate；
All first heat pipes are respectively positioned in the soaking plate, and first heat pipe is used for the temperature of the uniform soaking plate；
The heating unit and/or cooling device are located on the heat-conducting plate.
8. Battery case according to claim 7, which is characterized in that
All first heat pipes are respectively positioned on the upper surface of the soaking plate, all first heat pipes are respectively positioned on the soaking plate
Lower surface or all first heat pipes be respectively positioned on the inside of the soaking plate.
9. Battery case according to claim 7, which is characterized in that being connected to for all first heat pipe intervals is described
Between soaking plate and the heat-conducting plate, the gap between first heat pipe forms the medium channel.
10. according to claim 2-9 any one of them Battery cases, which is characterized in that the medium channel have import and
Outlet, the import and the outlet are respectively used to flow in and out for fluid heat transfer medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810105451.XA CN108198981A (en) | 2018-02-02 | 2018-02-02 | A kind of Battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810105451.XA CN108198981A (en) | 2018-02-02 | 2018-02-02 | A kind of Battery case |
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| Publication Number | Publication Date |
|---|---|
| CN108198981A true CN108198981A (en) | 2018-06-22 |
Family
ID=62592028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810105451.XA Pending CN108198981A (en) | 2018-02-02 | 2018-02-02 | A kind of Battery case |
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| Country | Link |
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| CN (1) | CN108198981A (en) |
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| CN109509852A (en) * | 2018-11-30 | 2019-03-22 | 苏州安靠电源有限公司 | Battery pack |
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