CN109346797A - A kind of integrated technique integrating thermal insulation layer and heat-conducting layer on liquid cooling plate - Google Patents
A kind of integrated technique integrating thermal insulation layer and heat-conducting layer on liquid cooling plate Download PDFInfo
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- CN109346797A CN109346797A CN201811107089.6A CN201811107089A CN109346797A CN 109346797 A CN109346797 A CN 109346797A CN 201811107089 A CN201811107089 A CN 201811107089A CN 109346797 A CN109346797 A CN 109346797A
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- Prior art keywords
- liquid cooling
- cooling plate
- heat
- main body
- thermal insulation
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to battery technical field of heat dissipation, disclose a kind of integrated technique that thermal insulation layer and heat-conducting layer are integrated on liquid cooling plate, it include: the integrated thermal insulation layer of first surface by spraying integrated technique in liquid cooling plate main body, the second surface by roller coating integrated technique in liquid cooling plate main body integrates heat-conducting layer；Thermal insulation layer integrated approach includes: by each component mixed aerosol of foamed material；In the first surface spray coating foaming material of liquid cooling plate main body；Foamed material is set to cure to form thermal insulation layer；The integrated approach of heat-conducting layer includes: to mix each component of Heat Conduction Material；Heat Conduction Material is coated in the second surface of liquid cooling plate main body；Second surface by applicator roll in liquid cooling plate main body carries out roller coating；Solidify the Heat Conduction Material in liquid cooling plate main body, forms heat-conducting layer.The thermal insulation layer and heat-conducting layer that the present invention is formed can directly be bonded the surface for being solidificated in liquid cooling plate main body, simplify manufacture craft, improve work efficiency radiating efficiency and ability with liquid cooling plate, are conducive to automation and realize.
Description
Technical field
A kind of integrating the present invention relates to battery technical field of heat dissipation more particularly on liquid cooling plate thermal insulation layer and heat-conducting layer
Integrated technique.
Background technique
Electric car belongs to one kind of new-energy automobile, has been to be concerned by more and more people now.In electric car, move
Power battery is its core element, and the efficiency for charge-discharge of power battery is directly related to electric car performance, due to power battery one
As be mutually converting for chemical energy and electric energy, efficiency for charge-discharge is affected by temperature.
Power battery can generate a large amount of heat during the work time, if what these heats cannot be distributed fast and effeciently
Words, will be such that the temperature of power battery increases, if raised temperature exceeds its reasonable temperature range (such as 25~45 DEG C),
The efficiency and service life that power battery will be reduced, can also cause thermal runaway when serious, lead to battery catches fire even explosion etc.
Safety accident.Therefore, electric car will keep a close eye on the cooling treatment of power battery in use.Due to battery self character,
The charging of vehicle low temperature, cold-starting is subject to many limitations, therefore battery thermal performance directly determines the table of vehicle at low temperature
It is existing.Liquid cooling plate is widely used in the control of battery pack temperature as a kind of efficient heat-exchange apparatus, including radiates and heat.
Common liquid cooling plate is mostly sheet metal structural, since inherently feature, the flatness of liquid cooling plate surface are difficult to metal plate
Guarantee, some large-sized cold plate flatness even reach several millimeters, and the gap formed by being uneven for plate surfaces can make
At very big thermal resistance and then substantially reduce the radiating efficiency and ability of cold plate, for guarantee battery core calorific value can effectively conduct to
Liquid cooling plate is simultaneously swapped out, it is necessary to is filled to gap.Conventional method is placed between battery modules and liquid cooling plate at present
Heat-conducting pad, one side heat-conducting pad can not be accomplished to be bonded completely with liquid cooling plate as a kind of sheet material, and gap reduces heat dissipation effect
Rate and ability, another aspect heat-conducting pad need by bonding way be fixed to water cooling plate surface, complex procedures and be unfavorable for from
Dynamicization.Thus, a kind of integration making technology is needed, to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of on liquid cooling plate integrates the integrated technique of thermal insulation layer and heat-conducting layer, overcomes existing
There is defect existing for manufacture craft.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of integrated technique integrating thermal insulation layer and heat-conducting layer on liquid cooling plate, comprising: by spraying integrated technique in liquid
The first surface of cold plate main body integrates thermal insulation layer, is integrated and is led in the second surface of the liquid cooling plate main body by roller coating integrated technique
Thermosphere；
The first surface by spraying integrated technique in liquid cooling plate main body integrates thermal insulation layer, specifically includes: will be described
Liquid cooling plate main body is placed in processing stations；By each component mixed aerosol of foamed material；In the first surface of the liquid cooling plate main body
Spray the foamed material；According to scheduled curing temperature and curing time, cure the foamed material in the liquid cooling plate main body, shape
At the thermal insulation layer；
The second surface by roller coating integrated technique in liquid cooling plate main body integrates heat-conducting layer, specifically includes: will be wait collect
Processing stations are placed at the liquid cooling plate main body of heat-conducting layer；The each component of Heat Conduction Material is mixed；In the liquid cooling plate main body
Second surface is coated with the Heat Conduction Material；Second surface by applicator roll in the liquid cooling plate main body carries out roller coating, so that institute
Heat Conduction Material is stated to be uniformly distributed；According to scheduled solidification temperature and curing time, make the Heat Conduction Material in the liquid cooling plate main body
Solidification forms heat-conducting layer.
Optionally, the thermal insulation layer first is integrated in the first surface of the liquid cooling plate main body, then in the liquid cooling plate main body
Second surface integrate the heat-conducting layer.
Optionally, in the step of surface in liquid cooling plate main body is coated with the Heat Conduction Material, according to the heat-conducting layer
Thickness and the liquid cooling plate main body size, to calculate and control coating weight.
Optionally, the foamed material is polyurethane foam, silicon foam, aeroge, blown rubber, polyethylene foamed, foaming
At least one of polypropylene, expanded polystyrene (EPS), foaming ethylene-vinyl acetate copolymer.
Optionally, the Heat Conduction Material is heat conductive silica gel, heat conductive silica gel, heat-conduction polyurethane glue, thermally conductive acrylic adhesive, leads
At least one of hot epoxy glue.
Optionally, the heat-conducting layer with a thickness of 0.1-10mm.
Optionally, the heat-conducting layer with a thickness of 1-5mm.
Optionally, the thermal insulation layer with a thickness of 0.5-15mm.
Optionally, the thermal insulation layer with a thickness of 3-10mm.
Compared with prior art, the embodiment of the present invention has the advantages that
The present invention directly passes through spraying integrated technique and integrates thermal insulation layer in the first surface of liquid cooling plate main body, passes through roller coating collection
Second surface at technique in liquid cooling plate main body integrates heat-conducting layer, and finally formed thermal insulation layer and heat-conducting layer can directly be bonded solidification
On the surface of liquid cooling plate main body, not only simplifies manufacture craft, but also greatly improve working efficiency, improve the radiating efficiency of liquid cooling plate
And ability, it also helps automation and realizes.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 be it is provided in an embodiment of the present invention integrated by spraying integrated technique in the first surface of liquid cooling plate main body it is heat-insulated
The process flow chart of layer；
Fig. 2 be it is provided in an embodiment of the present invention integrated by roller coating integrated technique in the second surface of liquid cooling plate main body it is heat-insulated
The process flow chart of layer；
Fig. 3 is the overall structure diagram of the liquid cooling plate provided in an embodiment of the present invention for being integrated with thermal insulation layer and heat-conducting layer；
Fig. 4 is the explosive view of the liquid cooling plate provided in an embodiment of the present invention for being integrated with thermal insulation layer and heat-conducting layer.
Specific embodiment
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
The core idea of the invention is as follows: a kind of integrated technique integrating thermal insulation layer and heat-conducting layer on liquid cooling plate, packet are provided
It includes: by spraying integrated technique, integrating thermal insulation layer in the first surface of liquid cooling plate main body；By scratching integrated technique, described
The second surface of liquid cooling plate main body integrates heat-conducting layer.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is that the first surface provided in this embodiment by spraying integrated technique in liquid cooling plate main body integrates thermal insulation layer
Technique, comprising:
The liquid cooling plate main body of thermal insulation layer to be integrated is placed in processing stations by step 101.
Step 102, each component mixed aerosol by foamed material.
Foamed material can for polyurethane foam, silicon foam, aeroge, blown rubber, polyethylene foamed, expanded polypropylene,
Expanded polystyrene (EPS), foaming ethylene-vinyl acetate copolymer in any one.
Step 103, the first surface spray coating foaming material in liquid cooling plate main body.
It, can be according to the thickness of required thermal insulation layer and the density of foamed material, to calculate quantity for spray and spraying before spraying
Time.
At the same time it can also which according to the shape and size of liquid cooling plate main body, to set the movement routine of spray head, control spray head exists
It is moved in spraying process according to predefined paths, so that the surface of liquid cooling plate main body deposits one layer of uniform foamed material, is improved
Spray efficiency.
Step 104, according to scheduled curing temperature and curing time, cure the foamed material in liquid cooling plate main body, finally
One layer of thermal insulation layer is formed in the first surface of liquid cooling plate main body.
In this step, curing temperature can be 180 DEG C of room temperature, and the curing time can be 5min.
Fig. 2 is that the second surface provided in this embodiment by roller coating integrated technique in liquid cooling plate main body integrates heat-conducting layer
Technique, comprising:
The liquid cooling plate main body of heat-conducting layer to be integrated is placed in processing stations by step 201.
Step 202 mixes each component of Heat Conduction Material.
Heat Conduction Material can be heat conductive silica gel, heat conductive silica gel, heat-conduction polyurethane glue, thermally conductive acrylic adhesive, thermally conductive epoxy
Glue or other adhesives with high thermal conductivity coefficient.
Step 203, the second surface coating Heat Conduction Material in liquid cooling plate main body.
Liquid cooling plate main body includes two plate faces, respectively working face and non-working surface, to realize effective heat sinking function, in
The coating of working face progress Heat Conduction Material.
It before coating, can be according to the thickness of required heat-conducting layer and the size of liquid cooling plate main body, to calculate coating weight.
In the surface coating of liquid cooling plate main body, can be only glued in the center of liquid cooling plate main body.
Step 204, the second surface by applicator roll in liquid cooling plate main body carry out roller coating, so that Heat Conduction Material is uniformly distributed
In coated face, flatness is kept.
Step 205, according to scheduled condition of cure, solidify the Heat Conduction Material in liquid cooling plate main body, finally in liquid cooling plate
The second surface of main body forms one layer of heat-conducting layer.
In this step, solidification temperature can be 80 DEG C of room temperature, and curing time can be 30min.
An application example provided below:
The size 200*200mm of liquid cooling plate main body, required heat-conducting layer is with a thickness of 2mm, then at least needing to be coated with 80cm3
Adhesive.
Specific integrated technique are as follows:
(1) fixed: liquid cooling plate main body is placed in fixed station.
(2) it mixes glue: the component A and B component of Heat Conduction Material will be formed, mixed in proportion by mixing machine.
(3) it is coated with: applying Heat Conduction Material in the center on the surface of liquid cooling plate main body.
(4) roller coating: control applicator roll is moved in the liquid cooling plate body surfaces for being coated with Heat Conduction Material with roll mode, can be anti-
Multiple movement, the thickness for controlling Heat Conduction Material reach specified value, and coating circular-roll machining accuracy can be ± 0.1mm, and height adjusts
Precision can be ± 0.1mm.
(5) solidify: the liquid cooling plate main body that surface integrates heat-conducting layer being placed in 80 DEG C of baking ovens, is taken out after 30min.
In the present embodiment, thermal insulation layer first can be integrated in the first surface of liquid cooling plate main body, then the second of liquid cooling plate main body
Surface integrates heat-conducting layer；Heat-conducting layer first can also be integrated in the second surface of liquid cooling plate main body, then the first of liquid cooling plate main body
Surface integrates thermal insulation layer, is within the scope of the invention.
Fig. 3 and Fig. 4 is liquid cooling plate made of the above-mentioned integrated technique of application, including liquid cooling plate main body 2, the liquid cooling plate main body
2 upper surface be equipped with heat-conducting layer 1, the heat-conducting layer 1 with a thickness of 0.1-10mm, optimal thickness 1-5mm, the heat-conducting layer 1
For adhesive, the heat-conducting layer 1 is by heat conductive silica gel, heat conductive silica gel, heat-conduction polyurethane glue, thermally conductive acrylic adhesive, thermally conductive epoxy
One of which in glue or other adhesives with high thermal conductivity coefficient is made, and the upper surface of adhesive and liquid cooling plate ontology 2 is viscous
Solidification connection is connect, the lower end surface of the liquid cooling plate main body 2 is equipped with thermal insulation layer 3, and thermal insulation layer 3 is fixed on liquid by foam in place technique
The lower end of cold plate main body 2, the thermal insulation layer 3 be porous structure, the thermal insulation layer 3 with a thickness of 0.5-15mm, optimal thickness is
3-10mm, the thermal insulation layer 3 are porous structure, and thermal insulation layer is poly- by polyurethane foam, silicon foam, aeroge, blown rubber, foaming
Ethylene, hair solve a case polypropylene, expanded polystyrene (EPS), foaming ethylene-vinyl acetate copolymer in one of which be made.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of integrated technique for integrating thermal insulation layer and heat-conducting layer on liquid cooling plate characterized by comprising integrated by spraying
Technique liquid cooling plate main body first surface integrate thermal insulation layer, by roller coating integrated technique the liquid cooling plate main body the second table
Face integrates heat-conducting layer；
The first surface by spraying integrated technique in liquid cooling plate main body integrates thermal insulation layer, specifically includes: by the liquid cooling
Plate main body is placed in processing stations；By each component mixed aerosol of foamed material；It is sprayed in the first surface of the liquid cooling plate main body
The foamed material；According to scheduled curing temperature and curing time, the foamed material in the liquid cooling plate main body is cured, forms institute
State thermal insulation layer；
The second surface by roller coating integrated technique in liquid cooling plate main body integrates heat-conducting layer, specifically includes: will lead to integrated
The liquid cooling plate main body of thermosphere is placed in processing stations；The each component of Heat Conduction Material is mixed；The second of the liquid cooling plate main body
Surface is coated with the Heat Conduction Material；Second surface by applicator roll in the liquid cooling plate main body carries out roller coating, so that described lead
Hot material is uniformly distributed；According to scheduled solidification temperature and curing time, solidify the Heat Conduction Material in the liquid cooling plate main body,
Form heat-conducting layer.
2. the integrated technique according to claim 1 for integrating thermal insulation layer and heat-conducting layer on liquid cooling plate, which is characterized in that first
The thermal insulation layer is integrated in the first surface of the liquid cooling plate main body, then integrated described in the second surface of the liquid cooling plate main body
Heat-conducting layer.
3. the integrated technique according to claim 1 for integrating thermal insulation layer and heat-conducting layer on liquid cooling plate, which is characterized in that institute
It states in the step of surface of liquid cooling plate main body is coated with the Heat Conduction Material, according to the thickness of the heat-conducting layer and the liquid cooling
The size of plate main body, to calculate and control coating weight.
4. the integrated technique according to claim 1 for integrating thermal insulation layer and heat-conducting layer on liquid cooling plate, which is characterized in that institute
Stating foamed material is polyurethane foam, silicon foam, aeroge, blown rubber, polyethylene foamed, expanded polypropylene, foaming polyphenyl second
At least one of alkene, foaming ethylene-vinyl acetate copolymer.
5. the integrated technique according to claim 1 for integrating thermal insulation layer and heat-conducting layer on liquid cooling plate, which is characterized in that institute
State Heat Conduction Material be heat conductive silica gel, heat conductive silica gel, heat-conduction polyurethane glue, thermally conductive acrylic adhesive, in thermally conductive epoxy glue at least
It is a kind of.
6. the integrated technique according to claim 1 for integrating thermal insulation layer and heat-conducting layer on liquid cooling plate, which is characterized in that institute
State heat-conducting layer with a thickness of 0.1-10mm.
7. the integrated technique according to claim 1 for integrating thermal insulation layer and heat-conducting layer on liquid cooling plate, which is characterized in that institute
State heat-conducting layer with a thickness of 1-5mm.
8. the integrated technique according to claim 1 for integrating thermal insulation layer and heat-conducting layer on liquid cooling plate, which is characterized in that institute
State thermal insulation layer with a thickness of 0.5-15mm.
9. the integrated technique according to claim 1 for integrating thermal insulation layer and heat-conducting layer on liquid cooling plate, which is characterized in that institute
State thermal insulation layer with a thickness of 3-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107089.6A CN109346797B (en) | 2018-09-21 | 2018-09-21 | Integration process for integrating heat insulation layer and heat conduction layer on liquid cooling plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107089.6A CN109346797B (en) | 2018-09-21 | 2018-09-21 | Integration process for integrating heat insulation layer and heat conduction layer on liquid cooling plate |
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| Publication Number | Publication Date |
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| CN109346797A true CN109346797A (en) | 2019-02-15 |
| CN109346797B CN109346797B (en) | 2021-05-14 |
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| CN109346797B (en) | 2021-05-14 |
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Denomination of invention: The invention relates to an integrated process for integrating a heat insulation layer and a heat conduction layer on a liquid cooling plate Effective date of registration: 20211230 Granted publication date: 20210514 Pledgee: Agricultural Bank of China Limited by Share Ltd. South Lake branch Pledgor: ZHEJIANG QINGYOU MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2021980017131 |
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Date of cancellation: 20220107 Granted publication date: 20210514 Pledgee: Agricultural Bank of China Limited by Share Ltd. South Lake branch Pledgor: ZHEJIANG QINGYOU MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2021980017131 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: The invention relates to an integrated process for integrating a heat insulation layer and a heat conduction layer on a liquid cooling plate Effective date of registration: 20220111 Granted publication date: 20210514 Pledgee: Agricultural Bank of China Limited by Share Ltd. South Lake branch Pledgor: ZHEJIANG QINGYOU MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2022330000045 |