CN108666704A - A kind of heat-exchanger rig - Google Patents
A kind of heat-exchanger rig Download PDFInfo
- Publication number
- CN108666704A CN108666704A CN201810694876.9A CN201810694876A CN108666704A CN 108666704 A CN108666704 A CN 108666704A CN 201810694876 A CN201810694876 A CN 201810694876A CN 108666704 A CN108666704 A CN 108666704A
- Authority
- CN
- China
- Prior art keywords
- heat
- partition
- tablet
- exchanger rig
- finger
- 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
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Classifications
-
- 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
- H01M10/6554—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
-
- 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
Abstract
The present invention provides a kind of heat-exchanger rig, for battery swap heat, the heat-exchanger rig includes：First tablet and the second tablet docked with the first tablet, second tablet includes recessed portion to be constituted cavity with first tablet, second tablet further includes the multiple first finger-like partition extended from the first side to the second side and the multiple second finger-like partition extended from second side to second side, the multiple first finger-like partition separates the runner being staggered so that the cavity forms detour with the multiple second finger-like, is provided with to the flow-disturbing of the runner external concavity and cheats on the runner.
Description
Technical field
The present invention relates to a kind of heat-exchanger rig more particularly to a kind of liquid coolings for carrying out heat exchange with power battery
Plate.
Background technology
General power battery cooling device is by the external cooling device such as positive temperature of Chiller, external heating device such as PTC
The compositions such as coefficient heater, heat-exchanger rig such as cooled plate, heat conductive silica gel, pipeline, valve, the side that battery core is positioned over cooled plate are flat
On plate, there is thermal conductive silicon rubber cushion between battery core and cooled plate.
Fig. 1 is the heat-exchanger rig schematic diagram of existing common water-cooling project, existing to use cooled plate as cooling scheme
Battery pack, coolant liquid enters from inlet inside heat-exchanger rig, during coolant liquid is in heat-exchanger rig internal flow with it is dynamic
Power battery exchanges heat, and is finally flowed out from liquid outlet, the exchange capability of heat of this kind of heat-exchanger rig is relatively poor, the heating resulted in the need for
Time or cooling time are longer, on the one hand increase the stand-by period, and prolonged wait for will certainly increase unnecessary energy consumption, separately
On the one hand precarious position can be extended, leads to battery core life time decay, and power battery comes as the sole power of pure electric automobile
Source, it is 20% even more to account for integral vehicle cost for cost, therefore how the service life of extend as far as possible power battery is pure electric vehicle
The problem of field urgent need to resolve.
Invention content
In order to overcome drawbacks described above, the present invention is intended to provide a kind of heat-exchanger rig is deposited with the heat-exchanger rig for solving power battery
Heat-energy transducer force difference, heat-exchange time length problem.
According to an aspect of the present invention, a kind of heat-exchanger rig is provided, is used for and battery swap heat, the heat-exchanger rig
Including：
First tablet and the second tablet docked with the first tablet, second tablet include recessed portion with described
One tablet constitute cavity, second tablet further include extends from multiple first finger-like from the first side to the second side partition with
And the multiple second finger-like partition extended from second side to second side, the multiple first finger-like partition and institute
It states multiple second finger-like and separates the runner being staggered so that the cavity forms detour, be provided with to the stream on the runner
The flow-disturbing of road external concavity is cheated.
Further, the flow-disturbing hole is circle.
Further, the depth in the flow-disturbing hole is 2 millimeters or less.
Further, the depth in the flow-disturbing hole is 2 millimeters.
Further, the spacing in the flow-disturbing hole is 30 millimeters or less.
Further, the spacing in the flow-disturbing hole is 20 millimeters.
Further, it is 6 millimeters or less that the flow-disturbing hole, which is radius,.
Further, it is 6 millimeters that the flow-disturbing hole, which is radius,.
Further, the inlet and liquid outlet in the channel are set to first side or described of second tablet
Arbitrary side in second side.
Further, second tablet further includes the partition extended from first side to second side, if
It is placed on each section of the runner, is abutted with first tablet the runner is divided into dual channel.
Further, the partition is continuous partition.
Further, the partition is multiple separate partition.
By increasing flow-disturbing hole on runner, it is the coolant liquid of laminar flow to make former flow regime for this case, and a part becomes rapid
Stream, and turbulent flow has larger convection transfer rate, this can enable in same traffic, identical inlet temperature, identical initial electricity
In the case of the module temperature of pond, increase heat exchange power；This case is separated by increasing in runner so that coolant liquid is by separating
When be constantly split, converge, shunting again, converging again so that coolant liquid adequately mixes, there is more average temperature
So that each power battery cooling effect having the same.On the other hand on the heat-exchanger rig described in this case, battery is being chosen
The PTC or Chiller of smaller power can be chosen when wrapping external heating or cooling device, this to a certain extent can it is cost-effective and
Reduce parts installation space.
Description of the drawings
After reading the detailed description of embodiment of the disclosure in conjunction with the following drawings, the present invention more better understood when
Features described above and advantage.
Fig. 1 is the heat-exchanger rig schematic diagram being painted on one side according to prior art；
Fig. 2 is the heat-exchanger rig schematic diagram being painted according to an embodiment of this case；
Fig. 3 is the heat-exchanger rig schematic diagram being painted according to an embodiment of this case；
Fig. 4 is the heat-exchanger rig schematic diagram being painted according to an embodiment of this case；
Fig. 5 is the experimental data table figure being painted according to the one side of this case.
For clarity, the brief description of reference numeral is given below：
210,310,410 second tablet
211,311,411 first finger-like are separated
212,312,412 second finger-like are separated
203,303,403 first side
204,304,404 second side
215,315,415 runner
216,316,416 flow-disturbings are cheated
217,317,417 inlet
218,318,418 liquid outlet
219,319,419 partition
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Note that below in conjunction with attached drawing and specifically real
The aspects for applying example description is merely exemplary, and is understood not to carry out any restrictions to protection scope of the present invention.
To solve the problems, such as that heat exchange efficiency existing for the heat-exchanger rig of existing power battery is low, heat-exchange time length, this case carries
For a kind of heat-exchanger rig.
In one embodiment, as shown in Fig. 2, the heat-exchanger rig includes the first tablet (not shown) and the second tablet 210.
First tablet is metal plate, is contacted with power battery after heat conductive silica gel for covering.
Second tablet 210 is metal plate, by forming recessed portion after punching press, when the periphery of the second tablet 210 and the
When the periphery of one tablet is welded or punching press is docked, the recessed portion constitutes cavity with first tablet.Second tablet 210 further includes
The partition 211 of first finger-like and the second finger-like partition 212.The of left side and second tablet 210 of first finger-like partition 211
One side 203 connects, and right side extends from first side 203 to the second side 204 but do not connect with the second side 204.This
The right side of two finger-like partition 212 is connect with 210 second side 204 of the second tablet, and left side is from the second side 204 to the first side
203 extend but are not connect with the first side 203.First finger-like partition 211 is staggered with second finger-like partition 212, from
And make the runner 215 of cavity formation detour.It is provided on the runner 215 to the flow-disturbing of 215 external concavity of runner hole 216,
I.e. the flow-disturbing cheats cross-sectional distance of the cross-sectional distance more than 215 the first tablet of distance of runner of 216 the first tablets of distance.The flow-disturbing is cheated
It is uniformly distributed on runner 215.
It is appreciated that first finger-like partition 211 and the quantity of second finger-like partition 212 regard second tablet 210
First side 203 (length for being equal to the second side 204) and the cross-sectional width of runner 215 are determined.Such as when first side
At 4 times of 203 cross-sectional width for being approximately equal to the length to runner 215 (such as Fig. 1), the quantity of first finger-like partition 211 is 2,
The quantity of second finger-like partition 212 is 1.It is appreciated that the number of first finger-like partition 211 and second finger-like partition 212
Amount might not, or even when 2 times of the cross-sectional width for being approximately equal to the length to runner 215 of first side 203, this first refers to
The quantity of shape partition 211 is 1, and the quantity of second finger-like partition 212 is 0.
It is appreciated that although the flow-disturbing hole 216 being painted in Fig. 2 is circle, the shape in actually flow-disturbing hole can be
Any other geometric figure, such as：Triangle, rectangle, square, diamond shape, polygon etc..
Further, inlet 217 and liquid outlet 218 are respectively arranged in the both ends of first side 203.The feed liquor
Mouth 217 and liquid outlet 218 can be embedded in the metal circular tube between first tablet and the second tablet.
It is appreciated that although the inlet 217 and liquid outlet 218 that are painted in Fig. 2 are set on the first side 203, actually
On can also be set on the second side 204 or even inlet 217 is set to its in the first side 203 and the second side 204
In middle one, liquid outlet 218 is set in the wherein another one in first side 203 and the second side 204.Certainly different
The setting of inlet and liquid outlet may need correspondingly to adjust the arrangement situation of the partition of the first finger-like and the partition of the second finger-like.
In one embodiment, as shown in figure 3, the heat-exchanger rig includes the first tablet (not shown) and the second tablet 310.
First tablet is metal plate, is contacted with power battery after heat conductive silica gel for covering.
Second tablet 310 is metal plate, by forming recessed portion after punching press, when the periphery of the second tablet 310 and the
When the periphery of one tablet is welded or punching press is docked, the recessed portion constitutes cavity with first tablet.Second tablet 310 further includes
The partition 311 of first finger-like and the second finger-like partition 312.The of left side and second tablet 310 of first finger-like partition 311
One side 303 connects, and right side extends from first side 303 to the second side 304 but do not connect with the second side 304.This
The right side of two finger-like partition 312 is connect with 310 second side 304 of the second tablet, and left side is from the second side 304 to the first side
303 extend but are not connect with the first side 303.First finger-like partition 311 is staggered with second finger-like partition 312, from
And make the runner 315 of cavity formation detour.
It is appreciated that first finger-like partition 311 and the quantity of second finger-like partition 312 regard second tablet 310
First side 303 (length for being equal to the second side 304) and the cross-sectional width of runner 315 are determined.Such as when first side
At 4 times of 303 cross-sectional width for being approximately equal to the length to runner 315 (such as Fig. 1), the quantity of first finger-like partition 311 is 2,
The quantity of second finger-like partition 312 is 1.It is appreciated that the number of first finger-like partition 311 and second finger-like partition 312
Amount might not, or even when 2 times of the cross-sectional width for being approximately equal to the length to runner 315 of first side 303, this first refers to
The quantity of shape partition 311 is 1, and the quantity of second finger-like partition 312 is 0.
Further, partition 319 is distributed on each section of the runner 315, the partition 319 from the first side 303 to
Second side 304 extends, but is not connect with first side 303 or the second side 304.The partition 319 is by the section where it
Runner 315 is divided into dual channel, and coolant liquid is dispersed into two bursts of coolant liquids to ensure the dispersibility of coolant liquid when passing through the partition 319
And the uniformity of heat transfer effect.Two bursts of coolant liquids are mixed after partition 319, by next partition 319
Shi Zaici is separated to ensure that the temperature of each stock coolant liquid is identical.
It is additionally provided on the runner 315 to the flow-disturbing of 315 external concavity of runner hole 316, i.e. the flow-disturbing cheats 316 distances the
The cross-sectional distance of one tablet is more than the cross-sectional distance of 315 the first tablet of distance of runner.Flow-disturbing hole is uniformly distributed in the partition 319
Surrounding.
It is appreciated that although the flow-disturbing hole 316 being painted in Fig. 3 is circle, the shape in actually flow-disturbing hole can be
Any other geometric figure, such as：Triangle, rectangle, square, diamond shape, polygon etc..
Further, inlet 317 and liquid outlet 318 are respectively arranged in the both ends of first side 303.The feed liquor
Mouth 317 and liquid outlet 318 can be embedded in the metal circular tube between first tablet and the second tablet.
It is appreciated that although the inlet 317 and liquid outlet 318 that are painted in Fig. 3 are set on the first side 303, actually
On can also be set on the second side 304 or even inlet 317 is set to its in the first side 303 and the second side 304
In middle one, liquid outlet 318 is set in the wherein another one in first side 303 and the second side 304.Certainly different
The setting of inlet and liquid outlet may need correspondingly to adjust the arrangement situation of the partition of the first finger-like and the partition of the second finger-like.
In one embodiment, as shown in figure 4, the heat-exchanger rig includes the first tablet (not shown) and the second tablet 410.
First tablet is metal plate, is contacted with power battery after heat conductive silica gel for covering.
Second tablet 410 is metal plate, by forming recessed portion after punching press, when the periphery of the second tablet 410 and the
When the periphery of one tablet is welded or punching press is docked, the recessed portion constitutes cavity with first tablet.Second tablet 410 further includes
The partition 411 of first finger-like and the second finger-like partition 412.The of left side and second tablet 410 of first finger-like partition 411
One side 403 connects, and right side extends from first side 403 to the second side 404 but do not connect with the second side 404.This
The right side of two finger-like partition 412 is connect with 410 second side 404 of the second tablet, and left side is from the second side 404 to the first side
403 extend but are not connect with the first side 403.First finger-like partition 411 is staggered with second finger-like partition 412, from
And make the runner 415 of cavity formation detour.
It is appreciated that first finger-like partition 411 and the quantity of second finger-like partition 412 regard second tablet 410
First side 403 (length for being equal to the second side 404) and the cross-sectional width of runner 415 are determined.Such as when first side
At 4 times of 403 cross-sectional width for being approximately equal to the length to runner 415 (such as Fig. 1), the quantity of first finger-like partition 411 is 2,
The quantity of second finger-like partition 412 is 1.It is appreciated that the number of first finger-like partition 411 and second finger-like partition 412
Amount might not, or even when 2 times of the cross-sectional width for being approximately equal to the length to runner 415 of first side 403, this first refers to
The quantity of shape partition 411 is 1, and the quantity of second finger-like partition 412 is 0.
Further, partition 419, the partition 419 on each section of runner 415 are distributed on each section of the runner 415
For multiple separate partition, which is extended from the first side 403 to the second side 404, but not with first side 403
Or second side 404 connect.This section of runner 415 where it is divided into dual channel by the partition 419, and coolant liquid passes through the partition
Two bursts of coolant liquids are dispersed into when 419 to ensure the dispersibility of coolant liquid and the uniformity of heat transfer effect.Two bursts of coolant liquids
It mixes after partition 419, is separated again to ensure the temperature phase of each stock coolant liquid when by next partition 419
Together.Coolant liquid, which is passed through, constantly converges on every section of runner 415 and at the switching of every section of runner, shunts so that coolant liquid is filled
Point mixing, temperature having the same, be conducive to heat exchange when heat transfer effect having the same, as far as possible reduce may caused by
Heat exchange between power battery is uneven.
It is additionally provided on the runner 415 to the flow-disturbing of 415 external concavity of runner hole 416, i.e. the flow-disturbing cheats 416 distances the
The cross-sectional distance of one tablet is more than the cross-sectional distance of 415 the first tablet of distance of runner.Flow-disturbing hole is uniformly distributed in the partition 419
Surrounding.
It is appreciated that although the flow-disturbing hole 416 being painted in Fig. 4 is circle, the shape in actually flow-disturbing hole can be
Any other geometric figure, such as：Triangle, rectangle, square, diamond shape, polygon etc..
Further, inlet 417 and liquid outlet 418 are respectively arranged in the both ends of first side 403.The feed liquor
Mouth 417 and liquid outlet 418 can be embedded in the metal circular tube between first tablet and the second tablet.
It is appreciated that although the inlet 417 and liquid outlet 418 that are painted in Fig. 4 are set on the first side 403, actually
On can also be set on the second side 404 or even inlet 417 is set to its in the first side 403 and the second side 404
In middle one, liquid outlet 418 is set in the wherein another one in first side 403 and the second side 404.Certainly different
The setting of inlet and liquid outlet may need correspondingly to adjust the arrangement situation of the partition of the first finger-like and the partition of the second finger-like.
Further, size, the distribution situation in flow-disturbing hole will produce influence for the heat transfer effect of heat-exchanger rig.It is logical
The best setting effect in flow-disturbing hole can be obtained for the different setting of the flow-disturbing hole progress of the heat-exchanger rig of Commonly Used Size by crossing.
The experimental data in round flow-disturbing hole is divided into 7 groups of progress as shown in figure 5, testing, and is respectively arranged with different flow-disturbing holes
Radius, flow-disturbing hole depth, flow-disturbing cheat spacing.
As can be seen that as flow-disturbing cheats the gradual increase of radius, warm ascending effect gradually increases；With flow-disturbing cheat spacing by
Cumulative big, warm ascending effect is gradually reduced.Since the actual size of heat-exchanger rig limits, flow-disturbing hole depth is up to 2mm, actually
In 2mm hereinafter, with depth increase, warm ascending effect is gradually increasing, and in 2mm or more, warm ascending effect tends towards stability, therefore best
Flow-disturbing hole depth be 2mm.
To realize preferable heat transfer effect, the spacing in flow-disturbing hole is preferably in 30mm hereinafter, best flow-disturbing hole spacing is
10mm；The radius in flow-disturbing hole is 6mm hereinafter, best flow-disturbing hole radius is 6mm.
It is appreciated that may be different for the setting effect in other shapes of flow-disturbing hole, but it is equal by similar experiment
It can obtain its effect.
Flow-disturbing hole and the dimension scale of heat-exchanger rig in this case Fig. 2-3 do not represent actual dimension scale, only
Signal is used.
In addition, the use of term first, second, upper and lower etc. does not represent any sequence to importance, position, direction,
But only an element is distinguished with another element with term first, second is equal.In addition, term one, one etc. makes
With the limitation being not offered as to quantity, and only indicates the project and at least have one.
Description before offer be can put into practice to make any technical staff in this field it is described herein
Various aspects.However, it should be understood that protection scope of the present invention should be subject to the appended claims, and should not be limited to
The concrete structure and component of above the explained embodiment.Those skilled in the art within the spirit and scope of the present invention, can be right
Each embodiment carries out various changes and modifications, these are changed and modification is also fallen within the scope and spirit of the invention.
Claims (12)
1. a kind of heat-exchanger rig, for battery swap heat, the heat-exchanger rig includes：
First tablet and the second tablet docked with the first tablet, second tablet include recessed portion with it is described first flat
Plate constitutes cavity, second tablet further include multiple first finger-like from the first side to the second side that extends from separate and by
The partition of multiple second finger-like that second side extends to second side, the multiple first finger-like partition with it is described more
A second finger-like separates the runner being staggered so that the cavity forms detour, is provided with outside the runner on the runner
The flow-disturbing hole of portion's recess.
2. heat-exchanger rig as described in claim 1, which is characterized in that the flow-disturbing hole is circle.
3. heat-exchanger rig as claimed in claim 2, which is characterized in that the depth in the flow-disturbing hole is 2 millimeters or less.
4. heat-exchanger rig as claimed in claim 3, which is characterized in that the depth in the flow-disturbing hole is 2 millimeters.
5. heat-exchanger rig as claimed in claim 2, which is characterized in that the spacing in the flow-disturbing hole is 30 millimeters or less.
6. heat-exchanger rig as claimed in claim 5, which is characterized in that the spacing in the flow-disturbing hole is 10 millimeters.
7. heat-exchanger rig as claimed in claim 2, which is characterized in that the radius in the flow-disturbing hole is 6 millimeters or less.
8. heat-exchanger rig as claimed in claim 7, which is characterized in that the radius in the flow-disturbing hole is 6 millimeters.
9. heat-exchanger rig as described in claim 1, which is characterized in that the inlet and liquid outlet in the channel be set to this
First side or the arbitrary side in second side of two tablets.
10. heat-exchanger rig as described in claim 1, which is characterized in that second tablet further includes by first side
To second side extend partition, be set on each section of the runner, is abutted with first tablet with will described in
Runner is divided into dual channel.
11. heat-exchanger rig as claimed in claim 10, which is characterized in that the partition is continuous partition.
12. heat-exchanger rig as claimed in claim 10, which is characterized in that the partition is multiple separate partition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810694876.9A CN108666704A (en) | 2018-06-29 | 2018-06-29 | A kind of heat-exchanger rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810694876.9A CN108666704A (en) | 2018-06-29 | 2018-06-29 | A kind of heat-exchanger rig |
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| Publication Number | Publication Date |
|---|---|
| CN108666704A true CN108666704A (en) | 2018-10-16 |
Family
ID=63772408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810694876.9A Pending CN108666704A (en) | 2018-06-29 | 2018-06-29 | A kind of heat-exchanger rig |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3654443A1 (en) * | 2018-11-15 | 2020-05-20 | Contemporary Amperex Technology Co., Limited | Casing for battery pack and battery pack |
| CN112886097A (en) * | 2021-02-02 | 2021-06-01 | 浙江银轮机械股份有限公司 | Heat exchange plate and battery pack |
| CN114069104A (en) * | 2020-08-07 | 2022-02-18 | 广东汉宇汽车配件有限公司 | Electric heating device for power battery thermal management system |
| US11495861B2 (en) | 2018-11-15 | 2022-11-08 | Contemporary Amperex Technology Co., Limited | Casing for battery pack and battery pack |
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