CN110690525A - Chute interactive necking channel liquid cooling plate - Google Patents
Chute interactive necking channel liquid cooling plate Download PDFInfo
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- CN110690525A CN110690525A CN201910798717.8A CN201910798717A CN110690525A CN 110690525 A CN110690525 A CN 110690525A CN 201910798717 A CN201910798717 A CN 201910798717A CN 110690525 A CN110690525 A CN 110690525A
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- plate
- liquid
- storehouse
- microchannel
- liquid cooling
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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
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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
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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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
- H01M10/65—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
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to a chute interactive necking channel liquid cooling plate which comprises an upper plate, a lower plate, a plate body and a liquid cooling area, wherein the plate body is arranged between the upper plate and the lower plate, the plate body, the upper plate and the lower plate form the liquid cooling area, the liquid cooling area comprises a plurality of obliquely arranged microchannel partition plates, the microchannel partition plates divide the liquid cooling area into a plurality of oblique microchannels, the sectional area of each microchannel in the flow direction of cooling liquid is gradually reduced, the microchannels are divided into two groups, and the cooling liquid flows in the two groups of microchannels in an interactive mode. The left microchannel of this application turns right from a left side, and along with the passageway narrows down, the velocity of flow can increase, and the heat transfer volume also increases thereupon, has alleviated the inhomogeneity of temperature on the flow direction greatly, has reduced the difference in temperature between each battery cell in the group battery. And the micro-channel cooling liquid on the right side flows from right to left and is combined in an interactive mode, so that the temperature on the vertical section of the flow direction of the cooling liquid is compensated, and the temperature difference between the inside of each single battery and the battery pack is reduced.
Description
Technical Field
The invention relates to the field of liquid cooling plates in power battery heat management, in particular to a chute interactive necking channel liquid cooling plate.
Background
At present, the new energy automobile industry is rising, and pure electric vehicles are developed vigorously, and one of the key parts is a battery pack. The battery pack emits a large amount of heat along with long-time work, the heat can bring certain negative effects to the performance of the whole vehicle, and for the battery pack, the abnormal change of temperature can reduce the performance of the battery pack, for example, long-time high temperature can cause thermal runaway, and further accidents are caused. In order to ensure that the battery works in a reasonable temperature range, heat exchange heating or cooling is generally carried out by means of a liquid cooling device, the common liquid cooling device is a liquid cooling plate, and the design of a flow passage of the liquid cooling plate is directly related to the comprehensive performance of the liquid cooling plate.
The existing flow channel is generally designed by extruding a one-step formed microchannel water plate, such as patent application No. CN201721171741 (named as "a battery water cooling plate"), such as patent application No. 201820720104.3 (named as "a water cooling plate with a mouth organ tube structure"), and all the adopted microchannels are penetrated as the flow channels of the liquid cooling plate. For example, patent application No. 201820716975.8 (named as "flat multi-channel battery liquid cooling plate") adopts a one-in-one-out channel mode, but the channel is too long, and although the design of the rectangular channel relieves the non-uniformity of the cooling liquid, the channel length is increased, and the flow resistance of the fluid is also increased.
Because the heat at the bottom of the battery is not uniform, the temperature of the battery is higher as the battery is closer to the middle of the battery, so that the temperature difference of cooling liquid among all micro channels of the traditional penetrating type liquid cooling plate is larger, the nonuniformity of the temperature in the flowing direction of the cooling liquid is enlarged, and the cycle life of the battery is shortened, the efficiency is reduced, and even thermal runaway is caused due to the overlarge temperature difference. Therefore, a new flow passage structure for liquid cooling plates is required to solve the above problems.
Disclosure of Invention
In order to solve the technical problem in the prior art, the invention provides a chute interactive necking channel liquid cooling plate.
The invention specifically comprises the following contents: the utility model provides an interactive throat passageway liquid cooling board of chute, includes that upper plate, hypoplastron, plate body and liquid cooling are regional, the plate body sets up between upper plate and hypoplastron, plate body, upper plate and hypoplastron form the liquid cooling regional, the liquid cooling is regional including the microchannel baffle that a plurality of slants set up, the microchannel baffle falls into a plurality of slant microchannel with the liquid cooling is regional, and the sectional area reduces gradually on the coolant flow direction, and the microchannel falls into two sets ofly, and the coolant liquid is interactive flow in two sets of microchannels.
Further, the regional left end of liquid cooling is equipped with left feed liquor pipe and left drain pipe, and the right-hand member is equipped with right feed liquor pipe and right drain pipe, and the coolant liquid that gets into the microchannel from left feed liquor pipe flows from right drain pipe, and the coolant liquid that gets into the microchannel from right feed liquor pipe flows from left drain pipe.
Further, still including setting up the first big storehouse and the second of the right-hand member of converging of the regional left end of liquid cooling and converging the storehouse greatly, the storehouse is converged through converging the storehouse baffle and separating for first little storehouse and the little storehouse of converging of second that converges in first big storehouse of converging, the storehouse is converged through converging the storehouse baffle and separating for the little storehouse and the little storehouse of converging of third and fourth in the second big storehouse of converging, and left feed liquor pipe sets up and converges the storehouse corresponding in first little, and left drain pipe corresponds with the little storehouse of converging of second, and right feed liquor pipe corresponds with the little storehouse of converging of third, and right drain pipe corresponds with the little storehouse of converging of fourth.
Furthermore, the number ratio of the micro-channels corresponding to the first small confluence bin and the second small confluence bin is 2:1, and the number ratio of the micro-channels corresponding to the third small confluence bin and the fourth small confluence bin is 2: 1.
Furthermore, the left end and the right end of the liquid cooling area respectively comprise 9 microchannels, 6 microchannels corresponding to the first small confluence bin are changed into 3 microchannels in the flowing direction of the cooling liquid, and 6 microchannels corresponding to the third small confluence bin are changed into 3 microchannels in the flowing direction of the cooling liquid.
Furthermore, the height of the microchannel partition plate is 4 +/-0.2 mm, and the thickness of the microchannel partition plate is 0.5 +/-0.1 mm.
Further, the plate body, hypoplastron form through the whole suppression of aluminum plate, left feed liquor pipe, left drain pipe, right feed liquor pipe and right drain pipe welding are at the upper plate, do again as whole and the overall structure of plate body and hypoplastron looks welding.
Furthermore, the liquid cooling plate is made of punched plate sheets through brazing.
Furthermore, left feed liquor pipe, left drain pipe, right feed liquor pipe and right drain pipe are connected with water pump and water tank through the rubber tube respectively.
The invention has the beneficial effects that: the left microchannel of this application turns right from a left side, and along with the passageway narrows down, the velocity of flow can increase, and the heat transfer volume also increases thereupon, has alleviated the inhomogeneity of temperature on the flow direction greatly, has reduced the difference in temperature between each battery cell in the group battery. And the micro-channel cooling liquid on the right side flows from right to left and is combined in an interactive mode, so that the temperature on the vertical section of the flow direction of the cooling liquid is compensated, and the temperature difference between the inside of each single battery and the battery pack is reduced.
Drawings
The following further explains embodiments of the present invention with reference to the drawings.
FIG. 1 is a general schematic view of the chute interactive throat plate of the present invention;
FIG. 2 is a schematic view of a microchannel of the present invention;
FIG. 3 is a schematic view of a second large combiner bin according to the present disclosure;
fig. 4 is a cross-sectional view of the lower plate and large manifold of the liquid cooled plate of the present invention.
Detailed Description
In the description of the present embodiment, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present embodiment and simplifying the description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
In the description of the present embodiment, it should be understood that the terms "first", "second", and the like are used to limit the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
With reference to fig. 1-4, an interactive throat passageway liquid cooling board of chute, including upper plate 1, hypoplastron 2, plate body 3 and liquid cooling region 4, plate body 3 sets up between upper plate 1 and hypoplastron 2, plate body 3, upper plate 1 and hypoplastron 2 form the liquid cooling region, liquid cooling region 4 includes the microchannel baffle 5 that a plurality of slopes set up, microchannel baffle 5 falls into a plurality of slant microchannel with the liquid cooling region, the microchannel reduces gradually in the coolant flow direction sectional area, the microchannel falls into two sets ofly, the coolant liquid is interactive flow in two sets of microchannels.
Specifically, the height of the microchannel partition plate 5 is 4 +/-0.2 mm, and the thickness is 0.5 +/-0.1 mm.
The input and the output of coolant liquid in the liquid cooling board go on through the business turn over mouth of pipe, and is specific, and the regional left end of liquid cooling is equipped with left feed liquor pipe 6 and left drain pipe 7, and the right-hand member is equipped with right feed liquor pipe 8 and right drain pipe 9, and the coolant liquid that gets into the microchannel from left feed liquor pipe 6 flows out from right drain pipe 9, and the coolant liquid that gets into the microchannel from right feed liquor pipe 8 flows out from left drain pipe 7.
For the circulation of convenient coolant liquid, this embodiment still sets up first big storehouse 10 that converges at the regional left end of liquid cooling, and the right-hand member sets up the second and converges storehouse 11 greatly to first big storehouse 10 that converges is separated for first little storehouse 12 and the little storehouse 13 that converges of second through the storehouse baffle 16 that converges, and the second is gathered storehouse 11 greatly and is separated for third little storehouse 14 and the little storehouse 15 that converges through storehouse baffle 16 that converges, and left liquid inlet pipe 6 sets up and converges storehouse 12 corresponding at first little, and left drain pipe 7 corresponds with the little storehouse 13 that converges of second, and right liquid inlet pipe 8 corresponds with little storehouse 14 that converges of third, and right drain pipe 9 corresponds with little storehouse 15 that converges. The arrangement of the large confluence bin and the small confluence bin is favorable for stabilizing the flow speed and the water pressure of the cooling liquid in the micro-channels of the liquid cooling plates.
Specifically, the left end and the right end of the liquid cooling area respectively comprise 9 micro-channels, and the number of the micro-channels at the junction of the liquid cooling area and the large confluence bin at the left end and the right end is referred to herein.
First little storehouse 12 that converges corresponds 6 microchannels at the regional left end of liquid cooling, this 6 microchannels comprise 6 microchannel baffle 5 and body of plate 3, wherein 3 microchannel baffle 5 in rear cut off when being close body of plate 3 between with body of plate 3, thereby guarantee that the coolant liquid normally flows in these 3 microchannels, 3 microchannel baffle 5 in the front extend to the right-hand member from the regional left end of liquid cooling always, thereby form the coolant liquid and get into from 6 microchannels of first little storehouse 12 that converges, from the structure that 3 microchannels of the fourth little storehouse 15 that converges flow out.
The other group of micro-channels is formed by the fact that cooling liquid flows in from 6 micro-channels of the third small confluence bin 14 and flows out from 3 micro-channels of the second small confluence bin 13, and the rest of the structure is the same as that of the micro-channels of the previous group and is opposite to the previous group only in the flowing direction of the cooling liquid.
The microchannel partition plate at the junction of the two groups of microchannels, namely the shared microchannel partition plate, has the positions corresponding to the positions of the confluence bin partition plate 16 at the joints of the left end and the right end of the liquid cooling area respectively.
Turn right from a left side, along with the passageway narrows down, the total sectional area of passageway reduces, and the velocity of flow can increase, and the heat transfer volume also increases thereupon, and fluid velocity can increase gradually to improve heat transfer coefficient under the equal difference in temperature, alleviated the inhomogeneity of flow direction upper temperature greatly, reduced the difference in temperature between each battery cell in the group battery. And the 6 micro-channel cooling liquid on the right side flows from right to left and are combined in an interactive mode, so that the temperature on the vertical section of the flowing direction of the cooling liquid is compensated, and the temperature difference between the inside of each single battery and the battery pack is reduced. The cooling effect of the traditional parallel through type liquid cooling plate on the flow direction of cooling liquid can be gradually reduced, and the design of the chute interaction type can reduce the temperature difference between the single battery and the battery pack at the same time.
The plate body 3 of liquid cooling board, hypoplastron 2 are a whole, form through the aluminum plate suppression, and left feed liquor pipe 6, left drain pipe 7, right feed liquor pipe 8 and right drain pipe 9 link to each other with the upper plate 1 of liquid cooling board through welding process, and the overall structure who is whole and plate body 3, hypoplastron 2 welds mutually again, adopts the liquid cooling board of part formula equipment, has simple structure, spare part is few, the leakproofness is good, characteristics such as easy processing and assembly. The left liquid inlet pipe 6, the left liquid outlet pipe 7, the right liquid inlet pipe 8 and the right liquid outlet pipe 9 are respectively connected with the water pump and the water tank through rubber pipes. The upper plate 1, the lower plate 2 and the plate body 3 of the liquid cooling plate are all formed by stamping and brazing, the efficiency is high, and the one-time qualification rate is high.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only a preferred embodiment of the invention, which can be embodied in many different forms than described herein, and therefore the invention is not limited to the specific embodiments disclosed above. And that those skilled in the art may, using the methods and techniques disclosed above, make numerous possible variations and modifications to the disclosed embodiments, or modify equivalents thereof, without departing from the scope of the claimed embodiments. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.
Claims (9)
1. A chute interactive throat passageway liquid cooling plate which characterized in that: including upper plate, hypoplastron, plate body and liquid cooling region, the plate body sets up between upper plate and hypoplastron, plate body, upper plate and hypoplastron form the liquid cooling region, the liquid cooling region includes the microchannel baffle that a plurality of slant set up, the microchannel baffle falls into a plurality of slant microchannel with the liquid cooling region, and the sectional area reduces gradually on coolant flow direction for the microchannel, and the microchannel falls into two sets ofly, and the coolant liquid is interactive flow in two sets of microchannels.
2. The chute interactive throat plate of claim 1, wherein: the left end in liquid cooling region is equipped with left feed liquor pipe and left drain pipe, and the right-hand member is equipped with right feed liquor pipe and right drain pipe, and the coolant liquid that gets into the microchannel from left feed liquor pipe flows from right drain pipe, and the coolant liquid that gets into the microchannel from right feed liquor pipe flows from left drain pipe.
3. The chute interactive throat plate of claim 2, wherein: still including setting up the first big storehouse and the second of right-hand member of converging of the regional left end of liquid cooling storehouse of converging greatly, the storehouse is converged through the storehouse baffle that converges greatly to first little storehouse and the little storehouse of converging of second, the storehouse is converged through the storehouse baffle that converges greatly to the second and is separated for the little storehouse and the little storehouse of converging of third through the storehouse baffle that converges, and left feed liquor pipe sets up and converges in first little storehouse correspondingly, and left drain pipe corresponds with the little storehouse of converging of second, and right feed liquor pipe corresponds with the little storehouse of converging of third, and right drain pipe corresponds with the little storehouse of converging of fourth.
4. The chute interactive throat plate of claim 3, wherein: the number ratio of the micro-channels corresponding to the first small confluence bin and the second small confluence bin is 2:1, and the number ratio of the micro-channels corresponding to the third small confluence bin and the fourth small confluence bin is 2: 1.
5. The chute interactive throat channel liquid cooled plate of claim 4, wherein: the regional left and right sides both ends of liquid cooling include 9 microchannels respectively, and 6 microchannels that first little storehouse corresponds that converges become 3 microchannels in the coolant liquid flow direction, and 6 microchannels that the storehouse corresponds that the third little converges become 3 microchannels in the coolant liquid flow direction.
6. The chute interactive throat plate of claim 1, wherein: the height of the microchannel partition plate is 4 +/-0.2 mm, and the thickness of the microchannel partition plate is 0.5 +/-0.1 mm.
7. The chute interactive throat plate of claim 1, wherein: the plate body, hypoplastron are formed through the whole suppression of aluminum plate, left feed liquor pipe, left drain pipe, right feed liquor pipe and right drain pipe welding are at the upper plate, do the overall structure looks welding with plate body and hypoplastron as whole again.
8. The chute interactive throat plate of claim 1, wherein: the liquid cooling plate is made by brazing of stamping plates.
9. The chute interactive throat plate of claim 1, wherein: and the left liquid inlet pipe, the left liquid outlet pipe, the right liquid inlet pipe and the right liquid outlet pipe are respectively connected with the water pump and the water tank through rubber pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910798717.8A CN110690525B (en) | 2019-08-27 | 2019-08-27 | Chute interactive necking channel liquid cooling plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910798717.8A CN110690525B (en) | 2019-08-27 | 2019-08-27 | Chute interactive necking channel liquid cooling plate |
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| CN110690525A true CN110690525A (en) | 2020-01-14 |
| CN110690525B CN110690525B (en) | 2022-07-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111342164A (en) * | 2020-03-03 | 2020-06-26 | 南京创源天地动力科技有限公司 | Battery pack thermal management system based on four-way valve and variable flow resistance type cold plate combination design |
| CN113178640A (en) * | 2021-04-26 | 2021-07-27 | 北京天启鸿源新能源科技有限公司 | Energy storage battery constant temperature device and method |
| CN113991208A (en) * | 2021-09-30 | 2022-01-28 | 西安交通大学 | Liquid cooling power battery box |
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| CN113991208A (en) * | 2021-09-30 | 2022-01-28 | 西安交通大学 | Liquid cooling power battery box |
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| CN110690525B (en) | 2022-07-01 |
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