CN108258161A - The cold battery case of liquid and its preparation method, box type battery - Google Patents

The cold battery case of liquid and its preparation method, box type battery Download PDF

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Publication number
CN108258161A
CN108258161A CN201810001619.2A CN201810001619A CN108258161A CN 108258161 A CN108258161 A CN 108258161A CN 201810001619 A CN201810001619 A CN 201810001619A CN 108258161 A CN108258161 A CN 108258161A
Authority
CN
China
Prior art keywords
water pipe
heat exchanging
battery case
babinet
conduit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810001619.2A
Other languages
Chinese (zh)
Inventor
许玉林
龚晓冬
王爱淑
娄豫皖
顾江娜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Ankao Energy Co Ltd
Original Assignee
Suzhou Ankao Energy Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Ankao Energy Co Ltd filed Critical Suzhou Ankao Energy Co Ltd
Priority to CN201810001619.2A priority Critical patent/CN108258161A/en
Publication of CN108258161A publication Critical patent/CN108258161A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • H01M10/6568Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

This application discloses a kind of cold battery case of liquid and its preparation methods and the box type battery of this cold battery case of liquid of configuration, the cold battery case of liquid to include:The babinet of opening and the heat exchanging water pipe that arrangement is contacted with the babinet;The surface of the babinet is provided with the conduit being recessed inwardly, and the heat exchanging water pipe is embedded in the conduit.The cold battery case of this liquid of the application has thinner tank wall thickness, and can easily be replaced when heat exchanging water pipe damages.

Description

The cold battery case of liquid and its preparation method, box type battery
Technical field
This application involves field of batteries, and in particular to a kind of cold battery case of liquid and its preparation method and this cold electricity of liquid of configuration The box type battery of pond case.
Background technology
In the prior art, the battery case with liquid cooling structure is usually this structure type:One is buried inside tank wall The water pipe of root or more bendings.In use, the entery and delivery port of aforementioned water pipe is connected with extraneous circulating water supply system, follow Water at low temperature is sent to water pipe and is flowed in water pipe by ring water system, and the water at low temperature flowed along water pipe absorbs tank wall, and (tank wall absorbs Cell heat in case) heat after heat up, the water after heating is back to aforementioned circulating water supply system from water pipe water outlet.
Embedded technique of the above-mentioned water pipe in tank wall is usually:The water pipe of stainless steel is put into babinet as inserts In casting die, after the aluminium water of melting is poured such as mold and cooling, the battery case that water pipe is embedded in tank wall is just formd.
1st, the battery case of above-mentioned this structure, because water pipe bending is embedded in tank wall, and the tank wall of aluminum had been molded Die casting can not be carried out to it in journey and improve its structural strength, so must do the thickness of tank wall is unusual big, at least need Ensure that tank wall has the thickness of 16mm or so, this so that battery case dead weight is very big, while also increases the body of battery case outer profile Type, this runs in the opposite direction, and also increase the material cost of battery case with the design of box type battery light and smallization.
2nd, the battery case of above-mentioned this structure, used water pipe is stainless steel tube, however the stainless steel tube coefficient of heat transfer It is relatively low.
3rd, the battery case of above-mentioned this structure must be made thick and just can guarantee its intensity.
4th, the heat exchanging water pipe in above-mentioned this structure battery case once break down, can not by water pipe remove repair or It replaces, entire battery case is caused integrally to be scrapped, it can not secondary use.
Invention content
The purpose of the application is:For above-mentioned technical problem, the application proposes a kind of cold battery case of the liquid of new structure, simultaneously Also disclosing a kind of preparation method of this battery case and the box type battery of this battery case of configuration, this cold battery case of liquid has more Thin tank wall thickness, and can easily be replaced when heat exchanging water pipe damages.
The technical solution of the application is:
A kind of cold battery case of liquid, including:
Open babinet and
The heat exchanging water pipe of arrangement is contacted with the babinet;
The surface of the babinet is provided with the conduit being recessed inwardly, and the heat exchanging water pipe is embedded in the conduit.
The application based on the above technical solution, further includes following preferred embodiment:
The conduit is arranged on the outer surface of the babinet.
The babinet includes babinet bottom wall and encloses the wall box being set to above the babinet bottom wall, the conduit It is set to the outer surface of the babinet bottom wall.
The heat exchanging water pipe is closed in the protection board in the conduit by the outer surface fixed setting of the babinet bottom wall.
The heat exchanging water pipe is metal tube.
The heat exchanging water pipe is copper pipe, aluminum pipe or copper aluminum composite pipes, and the copper aluminum composite pipes are by the outer layer aluminium that is fixedly connected Pipe and internal layer copper pipe are formed.
The heat exchanging water pipe, which is extruded, to be embedded in the conduit, and the tube wall of the heat exchanging water pipe and the conduit Channel wall squeezes contact.
The groove being recessed inwardly is formed in the channel sidewalls of the conduit, heat exchanging water pipe's tube wall is along the conduit Width direction lateral extension deformation and stretch into the groove.
The conduit and the heat exchanging water pipe are multistage bending structure, and the heat exchanging water pipe is flat tube, and described are changed The radial thickness of hot-water line and the thickness of the babinet bottom wall are arranged in the same direction.
The surface of the babinet is formed with several reinforcing ribs being criss-cross arranged, and the conduit is formed in the reinforcing rib Between.
The heat exchanging water pipe is provided with two altogether, this two heat-exchanging water in-pipe flows from the middle part of the babinet bottom wall to Both sides guide.
The preparation method of the above-mentioned cold battery case of liquid, including:
The conduit of multistage bending is made in the box outer surface;
Make multistage bending processing after circular heat exchanging water pipe is flattened;
Heat exchanging water pipe after bending is press-fitted to the conduit.
A kind of box type battery, the cold battery case of liquid including above structure and the electricity being contained in the cold battery case of the liquid Pond.
The advantages of the application is:
1st, conduit is set in tank surface, heat exchanging water pipe is embedded in conduit, greatly facilitates heat exchanging water pipe and babinet Assembling, and when heat exchanging water pipe damages, can water pipe that directly milling is removed and more renewed from conduit by water pipe, it is very convenient. Projection portion between tank surface conduit has structural strengthening effect, and after heat exchanging water pipe is embedded in conduit, channel sidewalls are applied Added with lateral support, so as to ensure that the structural strength of babinet, the thickness of babinet is advantageously reduced.
2nd, heat exchanging water pipe has good thermal conductivity, outer layer aluminum pipe using the copper aluminum composite pipes of the double-layer structure of aluminium copper-clad There is better associativity with aluminium babinet, and memory can avoid managing after being used for a long time by having good resistance to corrosion Corrosion of the interior flow to tube wall.
3rd, conduit and heat exchanging water pipe are multistage bending structure, and the long enough that can be heat exchanging water pipe makes it cover as far as possible Cover entire tank wall face.Heat exchanging water pipe is flat tube configuration, and the thickness cloth in the same direction of the radial thickness of heat exchanging water pipe and babinet bottom wall It puts, is conducive to do the thickness of babinet bottom wall thinner, while the water-flowing amount for being also unlikely to heat exchanging water pipe is very few, and ensures to change Hot-water line 3 and babinet have sufficiently large contact area.
4th, the outer surface of babinet is formed with the numerous reinforcing ribs being criss-cross arranged, and conduit is formed between reinforcing rib --- Gap of the conduit between reinforcing rib.Reinforcing rib improves the structural strength of babinet, can tank thickness be made thin, embedded in adding Heat exchanging water pipe between strengthening tendons will not only occupy babinet wall thickness, but also provide lateral support for reinforcing rib, further be promoted Body structure intensity.
5th, heat-exchanging water in-pipe flow is guided from the middle part of babinet bottom wall to both sides, is conducive to middle part high-temperature battery in case Fast cooling, the homogeneity of battery temperature in guard box.
Description of the drawings
In order to illustrate more clearly of the technical solution of the embodiment of the present application, required use in being described below to embodiment Attached drawing be briefly described, the accompanying drawings in the following description is only some embodiments of the present application, for the common skill in this field For art personnel, without creative efforts, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the dimensional structure diagram of battery case in the embodiment of the present application;
Fig. 2 is the present invention looks up structural representation of battery case in the embodiment of the present application;
Fig. 3 is the A-A of Fig. 2 to sectional view;
Fig. 4 is the B portions enlarged drawing of Fig. 3;
Fig. 5 is the C portions enlarged drawing of Fig. 1;
For convenience of the technical solution for understanding the application, Fig. 1, Fig. 2 and Fig. 5 do not draw the incomplete structure of protection board.
Wherein:1- babinets, 101- conduits, 102- reinforcing ribs, 2- case lids, 3- heat exchanging water pipes, 4- protection boards.
Specific embodiment
Said program is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating The application and be not limited to limitation scope of the present application.The implementation condition used in embodiment can be done according to the condition of specific producer Further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
Fig. 1 to Fig. 4 shows a specific embodiment of the cold battery case of this liquid of the application, with the cold battery case phase of traditional liquid With, also include open babinet 1, for the opening of the babinet is closed case lid 2, with babinet 1 contact arrangement Heat exchanging water pipe 3.During practical application, arrangement battery in the battery case is passed through the cooling water of cycle into heat exchanging water pipe 3, cools down Water absorbs the heat of battery in babinet 1 and case during flowing and battery is made to cool down, then flowed out from water pipe water outlet.
The key improvements of the present embodiment are that above-mentioned heat exchanging water pipe 3 and babinet 1 employ completely new fit structure, specifically For:The surface of babinet 1 is provided with the conduit 101 being recessed inwardly, and heat exchanging water pipe 3 is embedded in conduit 101.
Conduit 101 is set in tank surface, heat exchanging water pipe 3 is embedded in conduit 101, greatly facilitates heat exchanging water pipe 3 With the assembling of babinet 1, and when heat exchanging water pipe 3 damages, can water pipe that directly milling is removed and more renewed from conduit by water pipe, it is non- It is often convenient.In addition, the projection portion between tank surface conduit 101 has structural strengthening effect, heat exchanging water pipe is embedded in conduit After 101, lateral support is applied with to channel sidewalls, so as to ensure that the structural strength of babinet, advantageously reduces the thickness of babinet Degree.
Above-mentioned conduit 101 can both be arranged on the inner surface of babinet 1, can also be arranged on the outer surface of babinet 1.And in order to Avoid battery and the interference of heat exchanging water pipe 3 in conduit and conduit, the present embodiment in case that conduit 101 has been arranged on babinet as far as possible 1 outer surface.
Because the box type battery that the cold battery case of this liquid is configured is used usually as automobile power cell, outer surface is most It is exposed in an atmosphere.When in use, battery case outer surface can contact various sundries, easily be corroded, and have and fired by stone The possibility of raw structural failure.In this regard, surface also fixed (welding or screw are fixed) has a block protection plate to the present embodiment outside the enclosure 4, which is enclosed in the heat exchanging water pipe 3 in conduit in conduit, have prevent babinet overlook, avoid babinet directly by The effect that stone is hit.
In the present embodiment, above-mentioned babinet 1 is rectangular box, and the babinet bottom wall is set to including babinet bottom wall and enclosing Four pieces of wall box of top, and above-mentioned conduit 101 is specifically set in the outer surface of babinet bottom wall, protection board 4 is also disposed at At babinet bottom wall.
In order to ensure heat exchanging water pipe 3 after embedded babinet conduit can with conduit snap fit, so as to reduce when the vibration The possibility that heat exchanging water pipe is caused to be detached from from conduit, while ensure the heat transfer efficiency of heat exchanging water pipe, the heat-exchanging water in the present embodiment Pipe 3 may be used aluminum pipe or copper pipe, can also be used the outer layer by being fixedly connected using the higher metal material of thermal conductivity factor The copper aluminum composite pipes that aluminum pipe and internal layer copper pipe are formed.Babinet 1 is aluminium.If heat exchanging water pipe 3 uses aluminium pipe structure, with aluminium Babinet 1 has better associativity;According to copper pipe structure, with good resistance to corrosion, after long-time service being avoided In-pipe flow promotes the service life of heat exchanging water pipe 3 to the corrosivity of tube wall;According to aforementioned copper aluminum composite pipes structure, then The associativity of water pipe and babinet and the corrosion resistance of water pipe can be taken into account.
During assembling, the heat exchanging water pipe 3 of metal material is extruded under pressure to be embedded in conduit 101, and exchange heat The tube wall of water pipe 3 is contacted with the channel wall extruding of conduit 101.When necessary, adhesive can be filled in conduit 101, with further Promote the bonding strength of heat exchanging water pipe and babinet.
In addition, in order to further promote the bonding strength of heat exchanging water pipe and babinet, the present embodiment is in the slot of conduit 101 It is formed with the groove (being not drawn into figure) being recessed inwardly on road side wall, heat exchanging water pipe 3 is squeezed masterpiece when being press-fitted to conduit With, and the tube wall of heat exchanging water pipe is caused to deform and stretched into groove along the width direction lateral extension of conduit 101.
It referring again to shown in Fig. 1 and Fig. 2, in the present embodiment, above-mentioned conduit 101 and heat exchanging water pipe 3 are multistage bending structure, And heat exchanging water pipe 3 is flat tube, and the radial thickness of heat exchanging water pipe 3 and the thickness of babinet bottom wall are arranged in the same direction.So-called " radial direction Thickness " has this meaning:The cross section approximate ellipse of flat tube or the loop configuration of rectangle, the long axis of the loop configuration are referred to as For radical length, the short axle of the loop configuration is referred to as radial thickness.Obviously, heat exchanging water pipe 3, be along its radial direction in bending Length direction carries out bending, because only that can ensure that the thickness of the radial thickness and babinet bottom wall of heat exchanging water pipe 3 is same in this way To arrangement.
It can be appreciated that the radial thickness of heat exchanging water pipe 3 and the thickness of babinet bottom wall are arranged in the same direction, be conducive to babinet bottom wall Thickness do thinner, while the water-flowing amount for being also unlikely to heat exchanging water pipe 3 is very few, and ensures that heat exchanging water pipe 3 and babinet have Sufficiently large contact area.
It refers again to shown in Fig. 1, above-mentioned conduit 101 is to be formed in 1 surface of babinet in this form in the present embodiment:Babinet 1 outer surface is formed with the numerous reinforcing ribs 102 being criss-cross arranged, and part reinforcing rib 102 is arranged close to, so as to be leaned at these Above-mentioned conduit 101 is formd between the reinforcing rib closely arranged --- gap of the conduit 101 between reinforcing rib.Reinforcing rib 102 The structural strength of babinet is improved, tank thickness can be made thin --- only need 12mm.
Above-mentioned reinforcing rib 102 and babinet 1 are structure as a whole, and the two can be integrally cast, and can also work as flat After babinet bottom wall completes, then reinforcing rib 102 is formed to the outer surface groove milling of babinet bottom wall.
In the present embodiment, above-mentioned heat exchanging water pipe 3 is provided with two altogether, and flow is by babinet bottom in this two heat exchanging water pipes 3 The middle part of wall is guided to both sides, that is to say, that when cooling water flows in heat exchanging water pipe 3, first passes through the middle region of babinet bottom wall Then domain is flowed to the side of babinet bottom wall.This is because the temperature highest of battery intermediate region and the temperature of two side areas in case It spends relatively low, inlet segment is arranged on middle part, intermediate low temperature flow and battery case wall temperature difference are larger so can be rapider Absorption intermediate cell heat, make intermediate cell fast cooling.Although the flow of both sides temperature when absorbing certain heat Relatively high, heat absorption capacity dies down, but the battery temperature of both sides is relatively low, so influence less, to ensure that case on the whole The consistency of interior battery temperature.
The inlet and outlet of above-mentioned two heat exchanging water pipes 3 are arranged in the middle part side of babinet bottom wall.It is so convenient Outer loop water system and the connection of 3 intake-outlet of heat exchanging water pipe.
This battery case of the present embodiment first produces the conduit 101 of multistage bending when making in 1 outer surface of babinet --- By the way that in tank surface molding, reinforcing rib is realized in length and breadth;Then it will be originally used for making multistage bending after circular heat exchanging water pipe 3 flattens Processing;The heat exchanging water pipe 3 after bending is press-fitted to conduit 101a again.
Above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to allow people that can understand this Shen Content please is simultaneously implemented according to this, and the protection domain of the application can not be limited with this.It is all according to the application main technical schemes The equivalent transformation or modification that Spirit Essence is done, should all cover within the protection domain of the application.

Claims (13)

1. a kind of cold battery case of liquid, including:
Open babinet (1) and
The heat exchanging water pipe (3) of arrangement is contacted with the babinet (1);
It is characterized in that, the surface of the babinet (1) is provided with the conduit (101) being recessed inwardly, the heat exchanging water pipe (3) is embedded In the conduit (101).
2. the cold battery case of liquid as described in claim 1, which is characterized in that the conduit (101) is arranged on the babinet (1) Outer surface.
3. the cold battery case of liquid as claimed in claim 2, which is characterized in that the babinet (1) includes babinet bottom wall and enclosing The wall box being set to above the babinet bottom wall, the conduit (101) are set to the outer surface of the babinet bottom wall.
4. the cold battery case of liquid as claimed in claim 3, which is characterized in that the outer surface of the babinet bottom wall is fixedly installed institute State the protection board (4) that heat exchanging water pipe (3) is closed in the conduit (101).
5. the cold battery case of liquid as described in claim 1, which is characterized in that the heat exchanging water pipe (3) is metal tube.
6. the cold battery case of liquid as claimed in claim 5, which is characterized in that the heat exchanging water pipe (3) is copper pipe, aluminum pipe or copper aluminium Multiple tube, the copper aluminum composite pipes are made of the outer layer aluminum pipe and internal layer copper pipe being fixedly connected.
7. the cold battery case of liquid as claimed in claim 5, which is characterized in that the heat exchanging water pipe (3) be extruded be embedded at it is described In conduit (101), and the tube wall of the heat exchanging water pipe (3) is contacted with the channel wall extruding of the conduit (101).
8. the cold battery case of liquid as claimed in claim 7, which is characterized in that be formed in the channel sidewalls of the conduit (101) The groove being recessed inwardly, heat exchanging water pipe's (3) tube wall are deformed along the width direction lateral extension of the conduit (101) and are stretched Enter in the groove.
9. the cold battery case of liquid as claimed in claim 7, which is characterized in that the conduit (101) and the heat exchanging water pipe (3) are equal For multistage bending structure, the heat exchanging water pipe (3) is flat tube, and the radial thickness of the heat exchanging water pipe (3) and the babinet The thickness of bottom wall is arranged in the same direction.
10. the cold battery case of liquid as claimed in claim 9, which is characterized in that the surface of the babinet (1) is formed with crisscross Several reinforcing ribs (102) of arrangement, the conduit (101) are formed between the reinforcing rib (102).
11. the cold battery case of liquid as claimed in claim 3, which is characterized in that the heat exchanging water pipe (3) is provided with two altogether, this Two interior flows of heat exchanging water pipe (3) are guided from the middle part of the babinet bottom wall to both sides.
12. a kind of preparation method of the cold battery case of the liquid as described in claim 1 to 11 is any, which is characterized in that including:
The conduit (101) of multistage bending is made in the babinet (1) outer surface;
Make multistage bending processing after circular heat exchanging water pipe (3) is flattened;
Heat exchanging water pipe (3) after bending is press-fitted to the conduit (101a).
13. a kind of box type battery exists including the cold battery case of liquid and the battery being contained in the cold battery case of the liquid, feature In the cold battery case of liquid uses the structure of the cold battery case of the liquid as described in claim 1 to 11 is any.
CN201810001619.2A 2018-01-02 2018-01-02 The cold battery case of liquid and its preparation method, box type battery Pending CN108258161A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810001619.2A CN108258161A (en) 2018-01-02 2018-01-02 The cold battery case of liquid and its preparation method, box type battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810001619.2A CN108258161A (en) 2018-01-02 2018-01-02 The cold battery case of liquid and its preparation method, box type battery

Publications (1)

Publication Number Publication Date
CN108258161A true CN108258161A (en) 2018-07-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810001619.2A Pending CN108258161A (en) 2018-01-02 2018-01-02 The cold battery case of liquid and its preparation method, box type battery

Country Status (1)

Country Link
CN (1) CN108258161A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111702434A (en) * 2020-04-22 2020-09-25 安徽帮德电气有限公司 Aluminum heat dissipation shell machining method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111702434A (en) * 2020-04-22 2020-09-25 安徽帮德电气有限公司 Aluminum heat dissipation shell machining method

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