CN117613457A - Liquid cooling plate assembly and power battery - Google Patents
Liquid cooling plate assembly and power battery Download PDFInfo
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- CN117613457A CN117613457A CN202311590535.4A CN202311590535A CN117613457A CN 117613457 A CN117613457 A CN 117613457A CN 202311590535 A CN202311590535 A CN 202311590535A CN 117613457 A CN117613457 A CN 117613457A
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- liquid cooling
- cooling plate
- plate
- runner
- heat dissipation
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- 239000007788 liquid Substances 0.000 title claims abstract description 209
- 238000001816 cooling Methods 0.000 title claims abstract description 205
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 144
- 230000017525 heat dissipation Effects 0.000 claims abstract description 95
- 238000004891 communication Methods 0.000 claims description 47
- 238000009434 installation Methods 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000000306 component Substances 0.000 description 27
- 239000012530 fluid Substances 0.000 description 27
- 239000000243 solution Substances 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H01M10/65—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
-
- 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)
Abstract
The application provides a liquid cooling plate assembly and a power battery, relates to the technical field of batteries, and is used for solving the technical problem of poor heat exchange efficiency between a liquid cooling plate and a battery cell module in the current power battery, wherein the liquid cooling plate assembly comprises a circulating runner and a plate core; the plate core comprises a first liquid cooling plate and a plurality of second liquid cooling plates, the circulating runner comprises a water inlet runner, a water outlet runner and a surface heat dissipation runner which are communicated, the water inlet runner and the water outlet runner are arranged on the first liquid cooling plate, and the surface heat dissipation runner is arranged on the second liquid cooling plate; along the first direction, a plurality of second liquid cooling plates are arranged in rows and are arranged on the first liquid cooling plate at intervals, a sub-accommodating space is formed between two adjacent second liquid cooling plates, a battery cell of the battery cell module is arranged in the sub-accommodating space, and the side face of the battery cell is in contact with the second liquid cooling plate face. The application provides a liquid cooling plate assembly for carry out thermal management to electric core module.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a liquid cooling plate assembly and a power battery.
Background
In recent years, electric automobiles are rapidly developed, and power batteries are becoming a hot spot for research. The lithium ion power battery as the power output of the electric automobile has strict requirements on temperature, so the power battery is required to be provided with a liquid cooling plate, and the heating and cooling of the power battery are effectively assisted to ensure the normal operation of the power battery.
The current power battery comprises a box body, a liquid cooling plate and a battery cell module, wherein the liquid cooling plate is used as a core component, and is usually arranged at the bottom of the box body and positioned below the battery cell module. The battery cell module comprises a plurality of battery cells, and the bottom of each battery cell is contacted with the upper surface of the liquid cooling plate, so that the liquid cooling plate can heat and cool each battery cell, and further the whole battery cell module is subjected to thermal management.
However, the poor heat exchange efficiency between the liquid cooling plate and the cell module affects the normal operation of the power battery.
Disclosure of Invention
In view of the above, embodiments of the present application provide a liquid cooling plate assembly and a power battery, which can improve heat exchange efficiency between the liquid cooling plate and the battery cell module, so as to ensure normal operation of the power battery.
In order to achieve the above purpose, the embodiment of the present application provides the following technical solutions:
an embodiment of the present application provides a liquid cooling plate assembly for performing thermal management on an electric core module, where the liquid cooling plate assembly includes a circulation flow channel and a plate core; the plate core comprises a first liquid cooling plate and a plurality of second liquid cooling plates, the circulating runner comprises a water inlet runner, a water outlet runner and a surface heat dissipation runner which are communicated, wherein the water inlet runner and the water outlet runner are arranged on the first liquid cooling plate, and the surface heat dissipation runner is arranged on the second liquid cooling plate; along the first direction, a plurality of be the row and the interval set up in between the second liquid cooling board on the first liquid cooling board, adjacent two form sub-accommodation space between the second liquid cooling board, the electric core of electric core module set up in the sub-accommodation space, just the side of electric core with the contact of second liquid cooling face.
In an alternative embodiment, the board core further comprises a spacer; the partition plate is arranged between two adjacent second liquid cooling plates, and forms a grid-shaped structure with a plurality of accommodating grids, and each accommodating grid is configured to accommodate one electric core.
In an alternative embodiment, the panel core further comprises two side panels disposed opposite each other; along a second direction, the two side plates are respectively arranged at two sides of the second liquid cooling plate and positioned on the first liquid cooling plate, and the first liquid cooling plate, the second liquid cooling plate and the side plates enclose a containing space; the accommodating space comprises a plurality of sub-accommodating spaces.
In an alternative embodiment, the liquid cooling plate assembly further comprises a heat conducting plate; along a first direction, the heat conducting plate is arranged on the side surface of the second liquid cooling plate, which faces the battery cell.
In an alternative embodiment, the surface of the heat conducting plate facing away from the second liquid cooling plate is provided with a plurality of guide teeth; the tooth portions of the guide teeth are inclined obliquely downward in a third direction.
In an alternative embodiment, the face heat dissipation runner includes at least one heat dissipation component; the heat dissipation assembly comprises a first communication flow passage, a second communication flow passage and a plurality of sub heat dissipation flow passages which are communicated with each other; the first communication flow passage and the second communication flow passage are oppositely arranged along a third direction and extend along a second direction; the plurality of sub heat dissipation flow passages are arranged between the first communication flow passage and the second communication flow passage at intervals along the second direction, and extend along the third direction; among the plurality of sub heat dissipation flow channels, the sub heat dissipation flow channels located at two sides along the second direction are respectively communicated with the water inlet flow channel and the water outlet flow channel.
In an alternative embodiment, the bottom of each sub heat dissipation runner is provided with a plurality of passages; each passage is provided with a flow control switch, and the flow rate flowing into the heat dissipation assembly is adjusted by controlling the flow control switch of each heat dissipation assembly.
In an alternative embodiment, the liquid cooling plate assembly further comprises a bottom plate and a plugging plate; the bottom plate is arranged at the bottom of the plate core, the plate core is provided with an installation cavity, and the surface heat dissipation flow channel is arranged in the installation cavity; the plugging plate cover is arranged at the top opening of the installation cavity.
In an alternative embodiment, the water inlet runner is provided with a water inlet communicated with the water inlet runner, and the water outlet runner is provided with a water outlet communicated with the water outlet runner; the water inlet and the water outlet are positioned at one end of the first liquid cooling plate along the first direction, and the water inlet and the water outlet are positioned at the middle position of the first liquid cooling plate along the second direction; the liquid cooling plate assembly further comprises a water inlet pipe, a water outlet pipe, a first plug connector and a second plug connector; the water inlet pipe is integrated on the first liquid cooling plate and is communicated with the water inlet, and the first plug connector is configured to be plugged into the water inlet pipe; the water outlet pipe is integrated on the first liquid cooling plate and communicated with the water outlet, and the second plug connector is configured to be plugged into the water outlet pipe.
A second aspect of the embodiments of the present application provides a power battery, including a battery cell module and a liquid cooling plate assembly according to the first aspect; the battery cell module comprises a plurality of battery cells; the liquid cooling plate assembly comprises a plate core and a circulating runner, wherein the plate core comprises a first liquid cooling plate and a plurality of second liquid cooling plates, the circulating runner comprises a water inlet runner, a water outlet runner and a surface heat dissipation runner which are communicated, the water inlet runner and the water outlet runner are arranged on the first liquid cooling plates, and the surface heat dissipation runner is arranged on the second liquid cooling plates; along the first direction, a plurality of be the row and the interval set up in between the second liquid cooling board on the first liquid cooling board, adjacent two form sub-accommodation space between the second liquid cooling board, the electric core set up in the sub-accommodation space, and with the contact of second liquid cooling face.
Compared with the related art, the liquid cooling plate assembly and the power battery provided by the embodiment of the application have the following advantages:
the embodiment of the application provides a liquid cooling board subassembly and power battery, wherein liquid cooling board subassembly includes board core and circulation runner, and the board core includes first liquid cooling board and a plurality of second liquid cooling board, and a plurality of second liquid cooling boards are row and interval setting on first liquid cooling board, form sub-accommodation space between two adjacent second liquid cooling boards, and power battery's electric core can set up in sub-accommodation space.
Further, the circulating flow passage comprises a water inlet flow passage, a water outlet flow passage and a surface heat dissipation flow passage which are communicated, the water inlet flow passage and the water outlet flow passage are integrated on the first liquid cooling plate, the surface heat dissipation flow passage is integrated on the second liquid cooling plate, and the battery cell is in surface contact with the second liquid cooling plate.
With the bottom of electric core and the upper surface contact of liquid cooling board among the correlation technique, area of contact between the two is little, leads to the heat transfer inefficiency between liquid cooling board and the electric core module, however, the side of electric core and the contact of second liquid cooling face in this embodiment of application can increase the area of contact of electric core and second liquid cooling board. The heat exchange area of the battery cell and the second liquid cooling plate can be increased, and the heat exchange efficiency of the battery cell module and the liquid cooling plate assembly is improved, so that the effective heat management of the whole battery cell module is realized, and the normal operation of the power battery is ensured.
In addition to the technical problems, technical features constituting the technical solutions, and beneficial effects caused by the technical features of the technical solutions described above, other technical problems that can be solved by the liquid cooling plate assembly and the power battery provided by the embodiments of the present disclosure, other technical features included in the technical solutions, and beneficial effects caused by the technical features will be described in further detail in the detailed description of the present disclosure.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an exploded schematic view of a power battery according to an embodiment of the present application;
fig. 2 is a schematic diagram of an overall structure of a liquid cooling plate assembly according to an embodiment of the present disclosure;
FIG. 3 is an exploded view of a liquid cooling plate assembly according to an embodiment of the present disclosure;
FIG. 4 is an enlarged schematic view of FIG. 1 at A;
FIG. 5 is a schematic view of the board core of FIG. 3;
FIG. 6 is a schematic view of an arrangement of a circulation flow channel according to an embodiment of the present disclosure;
fig. 7 is an enlarged schematic view at B in fig. 6.
Reference numerals illustrate:
100-liquid cooling plate assembly;
10-plate core;
101-a sub-accommodation space; 102-a housing grid;
11-a first liquid cooling plate; 12-a second liquid cooling plate; 121-a mounting cavity; 13-a separator; 14-side plates;
20-a circulation flow channel;
21-a water inlet flow passage; 22-a water outlet flow passage;
23-surface heat dissipation flow channels;
231-a heat sink assembly; 2311-sub-heat dissipation runners; 2312-a first communication flow channel; 2313-a second communication flow channel; 232-flow regulating structure; 2321-way;
40-a heat-conducting plate; 41-guide teeth;
50-a plugging plate;
60-a bottom plate;
71-a water inlet pipe; 72-a water outlet pipe;
81-a first plug; 82-a second plug;
200-cell module;
210-cell.
Detailed Description
As described in the background art, the heat exchange efficiency between the liquid cooling plate and the cell module in the current power battery is poor, so that the normal operation of the power battery is affected; the inventor researches find that the reason for this problem is that the current power battery comprises a box body, a liquid cooling plate and a battery cell module, wherein the liquid cooling plate is usually arranged at the bottom of the box body and below the battery cell module. The bottom of electric core and the upper surface contact of liquid cooling board lead to the heat transfer area between electric core and the liquid cooling board little, influence the heat exchange efficiency between the two.
To above-mentioned technical problem, this application embodiment provides a new liquid cooling board subassembly, and its liquid includes board core and circulation runner, and the board core includes first liquid cooling board and a plurality of second liquid cooling board, and a plurality of second liquid cooling boards are row and interval setting on first liquid cooling board, form the sub-accommodation space of each electric core of accommodation between two adjacent second liquid cooling boards.
Further, the circulating flow passage comprises a water inlet flow passage, a water outlet flow passage and a surface heat dissipation flow passage which are communicated, the water inlet flow passage and the water outlet flow passage are integrated on the first liquid cooling plate, the surface heat dissipation flow passage is integrated on the second liquid cooling plate, and the battery cell is in surface contact with the second liquid cooling plate. The heat exchange area of the battery cell and the second liquid cooling plate can be increased, and the heat exchange efficiency of the battery cell module and the liquid cooling plate assembly is improved, so that the effective heat management of the whole battery cell module is realized, and the normal operation of the power battery is ensured.
In order to make the above objects, features and advantages of the embodiments of the present application more comprehensible, the following description will make the technical solutions of the embodiments of the present application clear and complete with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which are within the scope of the protection of the present application, will be within the purview of one of ordinary skill in the art without the exercise of inventive faculty.
For the convenience of describing the embodiments of the present application, a coordinate system in the drawings is first described, where an X-axis direction is a first direction; the first direction may be a length direction of the power battery, the Y-axis direction is a second direction, and the second direction may be a width direction of the power battery; the Z-axis direction is a third direction, which may be a height direction of the power cell.
As shown in fig. 1, the power battery provided in this embodiment of the present application includes a battery box (not shown in the drawing), a liquid cooling plate assembly 100 and at least one electric core module 200, where the battery box includes a box body and a box cover, the box cover is disposed on the box body along a third direction, the liquid cooling plate assembly 100 and the electric core module 200 are sequentially disposed at the bottom of the box body, and the electric core module 200 is disposed inside the liquid cooling plate assembly 100.
Illustratively, in the embodiment of the present application, the power battery includes a plurality of battery cell modules 200, the plurality of battery cell modules 200 may be arranged in an array in the case, each battery cell module 200 includes a plurality of battery cells 210, and the plurality of battery cells 210 are arranged in rows and at intervals along the first direction. When the cell modules 200 are disposed in the box, each cell 210 is at least in contact with the liquid cooling plate assembly 100, and the liquid cooling plate assembly 100 is in communication with the cooling assembly or the heating assembly to introduce fluid into the liquid cooling plate assembly 100, so that the liquid cooling plate assembly 100 can exchange heat with the cell modules 200.
For example, in a low temperature environment, the liquid cooling plate assembly 100 heats the battery cell module 200 based on a high temperature fluid, and in a high temperature environment, the liquid cooling plate assembly 100 can cool the battery cell module 200 based on a low temperature fluid, so as to realize thermal management of the power battery.
As shown in fig. 2, 5 and 6, the liquid cooling plate assembly 100 provided in this embodiment of the present application includes a plate core 10 and a circulation flow channel 20 integrated in the plate core 10, the plate core 10 includes a first liquid cooling plate 11 and a plurality of second liquid cooling plates 12, along a first direction, the plurality of second liquid cooling plates 12 are arranged on the first liquid cooling plate 11 at intervals, a sub-accommodating space 101 is formed between two adjacent second liquid cooling plates 12, each sub-accommodating space 101 accommodates one electric core 210, i.e. the width of each sub-accommodating space 101 along the first direction is matched with the width of the electric core 210, so that the electric core 210 can be inserted into the sub-accommodating space 101.
For example, the battery module 200 includes a plurality of battery cells 210, and the plurality of battery cells 210 are aligned along a first direction. Correspondingly, a plurality of second liquid cooling plates 12 can be arranged on the first liquid cooling plate 11 at intervals along the first direction, sub-accommodating spaces 101 are formed between two adjacent second liquid cooling plates 12, the plurality of sub-accommodating spaces 101 are arranged in a row, the number of the sub-accommodating spaces 101 is consistent with that of the electric cores 210, and each electric core 210 corresponds to one sub-accommodating space 101.
The circulation flow channel 20 provided in the embodiment of the application includes a water inlet flow channel 21, a water outlet flow channel 22 and a surface heat dissipation flow channel 23 which are communicated, one end of the surface heat dissipation flow channel 23 is communicated with the water inlet flow channel 21, and the other end of the surface heat dissipation flow channel 23 is communicated with the water outlet flow channel 22. The water inlet channel 21 is provided with a water inlet for introducing fluid into the circulation channel 20, and the water outlet channel 22 is provided with a water outlet for guiding fluid out of the circulation channel 20.
Further, the water inlet flow channel 21 and the water outlet flow channel 22 are disposed on the first liquid cooling plate 11, and the surface heat dissipation flow channel 23 is disposed on the second liquid cooling plate 12, that is, the surface heat dissipation flow channel 23 is disposed on a side wall forming the sub-accommodating space 101. When the battery cells 210 are mounted in the sub-receiving space 101, the side surfaces of the battery cells 210 are in contact with the second liquid cooling plate 12, and two adjacent battery cells 210 are separated by the second liquid cooling plate 12.
In the related art, the bottom of the electric core is contacted with the upper surface of the liquid cooling plate, the contact area between the electric core and the upper surface of the liquid cooling plate is small, so that the heat exchange efficiency between the liquid cooling plate and the electric core module is poor, however, in the embodiment of the application, the side surface of the electric core 210 is contacted with the surface of the second liquid cooling plate 12, and the contact area between the electric core 210 and the second liquid cooling plate 12 can be increased. By the arrangement, the heat exchange area of the battery cell 210 and the second liquid cooling plate 12 can be increased, and the heat exchange efficiency of the battery cell module 200 and the liquid cooling plate assembly 100 can be improved, so that the whole battery cell module 200 can be effectively subjected to heat management, and the normal operation of the power battery can be ensured.
And, separate by the second liquid cooling board 12 between two adjacent electric core 210 along the first direction, compare with the two electric core that need set up the division board among the electric core module among the related art, this application need not to set up the division board between two adjacent electric core 210 to and need not to set up the end plate at the both ends of whole electric core module 200, can save the cost.
With continued reference to fig. 5, the board core 10 provided in the embodiment of the present application further includes a plurality of separators 13, where the separators 13 are disposed between two adjacent second liquid cooling boards 12, and form a grid structure with a plurality of receiving cells 102, and each receiving cell 102 is configured to receive one electric core 210. In other words, the partition plates 13 are respectively disposed in each of the sub-receiving spaces 101, and the partition plates 13 are centrally disposed in the sub-receiving spaces 101 along the second direction, so that the board core 10 has a plurality of receiving cells 102, and the plurality of receiving cells 102 are disposed in a grid shape.
When two battery cell modules 200 are mounted on the board core 10, each battery cell 210 of the battery cell module 200 is disposed in the accommodating compartment 102. Along the second direction, two adjacent cells 210 located in the same sub-accommodating space 101 are separated by the partition 13, so as to insulate the adjacent cells 210.
Further, the board core 10 further includes two opposite side boards 14, and along the second direction, the two side boards 14 are respectively disposed on two sides of the second liquid cooling board 12 and located on the first liquid cooling board 11. The first liquid cooling plate 11, the second liquid cooling plate 12 and the side plate 14 enclose an accommodating space, and the accommodating space includes a plurality of sub-accommodating spaces 101.
Specifically, the board core 10 includes a first side board and a second side board, along the second direction, the first side board and the second side board are respectively disposed on two sides of each second liquid cooling board 12, and the first side board and the second side board are respectively located on the first liquid cooling board 11, so that the first liquid cooling board 11, the second liquid cooling board 12, the first side board and the second side board enclose a containing space, and the containing space includes a plurality of sub-containing spaces 101 to accommodate a plurality of electric cores 210.
With continued reference to fig. 1, in order to enhance the heat exchange effect between the pair of liquid cooling plates 100 and the electric core 210, the liquid cooling plate assembly 100 provided in the embodiment of the present application further includes a heat conducting plate 40, and along the first direction, the heat conducting plate 40 is disposed on the side of the second liquid cooling plate 12 facing the electric core 210; for example, the heat-conducting plate 40 is bonded to the side of the second liquid-cooling plate 12. Preferably, the side of each accommodating cell 102 facing the battery cell 210 is provided with a heat conducting plate 40, and the heat conducting plates 40 at two sides of the accommodating cell 102 are respectively contacted with two side surfaces of the battery cell 210. By the arrangement, the heat generated by the battery cell 210 can be uniformly transferred to the heat conducting plate 40, and the heat exchange is performed between the heat conducting plate 40 and the second liquid cooling plate 12, so that the heat exchange effect is improved.
As shown in fig. 4, the surface of the heat conducting plate 40 facing away from the second liquid cooling plate 12 is further provided with a guiding structure, and the guiding structure includes a plurality of guiding teeth 41, and the plurality of guiding teeth 41 may be arranged on the surface of the heat conducting plate 40 in an array manner; when the battery cell 210 is inserted into the accommodating case 102, the guide teeth 41 can contact with the side surface of the battery cell 210. The teeth of the guide teeth 41 protrude from the surface of the heat conductive plate 40, and the teeth are inclined obliquely downward in the third direction.
So set up, the guide tooth 41 not only can be to the side contact of electric core 210, and in the cartridge process of electric core 210, guide tooth 41 is by extrusion deformation moreover, can be convenient for electric core 210 along the third direction cartridge in holding grid 102.
With continued reference to fig. 6, in the embodiment of the present application, the water inlet channel 21 and the water outlet channel 22 are disposed on the first liquid cooling plate 11. For example, the water inlet flow channel 21 and the water outlet flow channel 22 may be integrally disposed in the first liquid cooling plate 11, and the first liquid cooling plate 11 is provided with a cavity to form the water inlet flow channel 21 and the water outlet flow channel 22; alternatively, the first liquid cooling plate 11 is provided with a water inlet pipe and a water outlet pipe to form a water inlet channel 21 and a water outlet channel 22, respectively, which is not limited in the embodiment of the present application.
In the embodiment of the application, the water inlet runner 21 is provided with a water inlet communicated with the water inlet runner, the water inlet is used for introducing fluid into the circulating runner 20, the water outlet runner 22 is provided with a water outlet communicated with the water outlet runner, and the water outlet is used for guiding the fluid out of the circulating runner 20. Along the first direction, the first liquid cooling plate 11 comprises a first end and a second end which are oppositely arranged, along the first direction, the water inlet and the water outlet are both positioned at the first end of the first liquid cooling plate 11, and along the second direction, the water inlet and the water outlet are positioned at the middle position of the first liquid cooling plate 11.
For example, along the second direction, the water inlet channels 21 may be disposed at two side edges of the second liquid cooling plate 12, and the water outlet channels 22 may be disposed at a middle position of the second liquid cooling plate 12, that is, the second liquid cooling plate 12 realizes a channel design of "two-side inlet and middle outlet".
Alternatively, along the second direction, the water outlet flow channels 22 may be disposed at two side edges of the second liquid cooling plate 12, and the water inlet flow channels 21 may be disposed at a middle position of the second liquid cooling plate 12, that is, the second liquid cooling plate 12 implements a flow channel design of "middle in and two out", which is not limited in this embodiment, and the embodiment of the present application uses "two in and two out" of the second liquid cooling plate 12 as an example.
It should be noted that, the liquid cooling plate assembly 100 provided in the embodiment of the present application further includes a water inlet pipe 71, a water outlet pipe 72, a first plug connector 81 and a second plug connector 82; the water inlet pipe 71 is installed on the first liquid cooling plate 11, and one end of the water inlet pipe 71 is communicated with the water inlet, the other end is connected with the first plug connector 81, and the first plug connector 81 is connected with a pipeline of an external heating component or refrigerating component. The water outlet pipe 72 is installed on the first liquid cooling plate 11, one end of the water outlet pipe 72 is communicated with the water outlet, the other end is connected with the second plug 82, and the second plug 82 is connected with an external heating component or a pipeline of a refrigerating component.
Further, the water inlet pipe 71 and the water outlet pipe 72 may be integrated on the first liquid cooling plate 11, that is, the water inlet pipe 71 and the water outlet pipe 72 and the first liquid cooling plate 11 are in an integral structure. By the arrangement, the sealing performance of the liquid cooling plate assembly 100 can be improved, and water leakage at the water inlet and the water outlet can be prevented.
The surface heat dissipation flow channel 23 provided in this embodiment is integrated in the second liquid cooling plate 12, and the surface heat dissipation flow channel 23 is respectively communicated with the water inlet flow channel 21 and the water outlet flow channel 22, that is, fluid can flow into the surface heat dissipation flow channel 23 through the water inlet flow channel 21, and after the surface heat dissipation flow channel 23 exchanges heat with the electric core 210, the fluid is led out of the liquid cooling plate assembly 100 through the water outlet flow channel 22.
As shown in fig. 6, the surface heat dissipation flow channel 23 provided in the embodiment of the present application includes at least one heat dissipation component 231, and the heat dissipation component 231 is communicated with the water inlet flow channel 21 and the water outlet flow channel 22. The heat dissipation assembly 231 includes a first communication channel 2312, a second communication channel 2313 and a plurality of sub heat dissipation channels 2311, wherein the first communication channel 2312 and the second communication channel 2313 are arranged along a third direction, and the first communication channel 2312 is located below the second communication channel 2313.
The plurality of sub heat dissipation flow channels 2311 are sequentially disposed between the first communication flow channel 2312 and the second communication flow channel 2313 at intervals along the second direction, and each sub heat dissipation flow channel 2311 extends along the third direction. Of the plurality of sub heat dissipation flow paths 2311, two sub heat dissipation flow paths 2311 located at both sides of the edge in the second direction are respectively communicated with the water inlet flow path 21 and the water outlet flow path 22, and the remaining plurality of sub heat dissipation flow paths 2311 are communicated through the first communication flow path 2312 and the second communication flow path 2313 to form a heat dissipation flow path.
For example, two heat dissipation assemblies 231 are disposed in the second liquid cooling plate 12 surrounding the accommodating compartment 102, and each heat dissipation assembly 231 includes three sub heat dissipation channels 2311, one first communication channel 2312 and one second communication channel 2313. To optimize the layout, two heat dissipation components 231 may share a first communication channel 2312, and each of the two heat dissipation components may have a second communication channel 2313.
The two heat dissipation components 231 are defined as a first heat dissipation component and a second heat dissipation component, and three sub heat dissipation flow channels 2311 in the first heat dissipation component are defined as a first sub heat dissipation flow channel, a second sub heat dissipation flow channel and a third sub heat dissipation flow channel, respectively; three sub-heat dissipation flow passages 2311 in the second heat dissipation assembly are respectively defined as a fourth sub-heat dissipation flow passage, a fifth sub-heat dissipation flow passage and a sixth sub-heat dissipation flow passage
Along the second direction, the first sub-heat dissipation runner is arranged on one side of the first heat dissipation component close to the water inlet runner 21, the bottom of the first sub-heat dissipation runner is communicated with the water inlet runner 21, and the top of the first sub-heat dissipation runner is communicated with the second communication runner 2313 of the first heat dissipation component. The top of the second sub heat dissipation runner and the third sub heat dissipation runner are respectively communicated with the second communication runner 2313, and the bottom of the second sub heat dissipation runner and the bottom of the third sub heat dissipation runner are respectively communicated with the first communication runner 2312.
The flow direction of the fluid in the first heat dissipation component is as follows: fluid flows into the first communication flow channel 2312 from the water inlet flow channel 21 and the first sub heat dissipation flow channel and respectively enters the second sub heat dissipation flow channel and the third sub heat dissipation flow channel, so that the fluid flows in the first heat dissipation component along the third direction, the flow area of the fluid in the second liquid cooling plate 12 is increased, and the heat exchange efficiency with each battery cell 210 is further improved.
Further, the bottoms of the fourth sub-heat dissipation runner and the fifth sub-heat dissipation runner are respectively communicated with the first communication runner 2312, the tops of the fourth sub-heat dissipation runner and the fifth sub-heat dissipation runner are respectively communicated with the second communication runner 2313 of the second heat dissipation component, the top of the sixth sub-heat dissipation runner is communicated with the second communication runner 2313, and the bottom of the sixth sub-heat dissipation runner is communicated with the water outlet runner 22.
The flow direction of the fluid in the second heat dissipation component is as follows: the fluid can flow into the fourth sub-heat dissipation channel and the fifth sub-heat dissipation channel from the first communication channel 2312, and further flow into the second communication channel 2313 of the second heat dissipation component, and the fluid flows into the water outlet channel 22 through the sixth sub-heat dissipation channel, so that the fluid flows in the second heat dissipation component along the third direction, the flow area of the fluid in the second liquid cooling plate 12 is increased, and the heat exchange efficiency with each electric core 210 is further improved.
It should be noted that, in the heat dissipating assembly 231 of the present embodiment, the number of the sub heat dissipating channels 2311 may be set according to the need, and the communication schemes of each sub heat dissipating channel 2311, the first communication channel 2312 and the second communication channel 2313 may be arranged according to the actual need, so as to satisfy the requirement that the fluid flows along the heat dissipating assembly 231 along the third direction and downward, and the flow of each place in the heat dissipating assembly 231 is uniform.
As shown in fig. 7, since the water inlet of the water inlet channel 21 is disposed at the first end of the first liquid cooling plate 11, the pressure difference between the water inlet channels 21 at two sides of the first liquid cooling plate 11 is gradually reduced from the first end to the second end, so as to ensure uniform flow into each heat dissipation component 231, in this embodiment, a flow adjusting structure 232 is disposed at the bottom of each sub heat dissipation channel 2311 to adjust the flow of fluid flowing into the heat dissipation component 231.
Further, the flow regulating structure 232 provided in the embodiment of the present application is disposed at the bottom of the sub-heat dissipation flow channel 2311, the flow regulating structure 232 includes a plurality of channels 2321, each channel 2321 is respectively communicated with the sub-heat dissipation flow channel 2311, the sub-heat dissipation flow channel 2311 is communicated with the water inlet flow channel 21 through the channel 2321, or the sub-heat dissipation flow channel 2311 is communicated with the water outlet flow channel 22 through the channel 2321, or the sub-heat dissipation flow channel 2311 is communicated with the first communication flow channel 2312 through the channel 2321.
In this embodiment, a plurality of passages 2321 are disposed at the bottom of each sub heat dissipation flow channel 2311, and each passage 2321 is provided with a flow control switch, and the flow flowing into the sub heat dissipation flow channel 2311 can be controlled by controlling the closing or opening of the flow control switch of each heat dissipation component 231, so as to further adjust the flow flowing into the heat dissipation component 231.
For example, in the first direction, the fluid pressure at the connection between two adjacent heat dissipating components 231 and the water inlet channel 21 is different, and the flow rate of the fluid flowing into the front and the rear heat dissipating components 231 is consistent by adjusting the opening number of each passage 2321 at the two connection points or opening the passages 2321 at different positions at the two connection points.
In another embodiment, the flow regulating structure 232 includes at least one passage 2321, and the number and position of the passages 2321 are used to regulate the flow of fluid into the sub-heat dissipation channels 2311. Illustratively, a plurality of channel mounting sites are reserved at the bottom of each sub-heat dissipation channel 2311, and at least one channel 2321 is selectively mounted at the bottom of the sub-heat dissipation channel 2311, or the mounting positions of the channels 2321 are adjusted, so that the channels 2321 are located at different positions and different numbers, and thus the fluid flows into the sub-heat dissipation channels 2311 are different.
In this embodiment, the fluid flow in the entire circulation flow channel 20 can be simulated based on the fluid software, and the design of the flow regulating structure 232 of each sub-heat dissipation flow channel 2311 is adaptively adjusted according to the simulation result, and the communication positions of each sub-heat dissipation flow channel 2311, the first communication flow channel 2312 and the second communication flow channel 2313 are adjusted, so that the fluid flow in the surface heat dissipation flow channels 23 at different positions tends to be consistent, and the heat exchange effect on each electric core 210 is improved.
It should be noted that, in the embodiment of the present application, the circulation flow channel 20, the water inlet pipe 71, the water outlet pipe 72 and the board core 10 may be integrally disposed and form an integral structure. For example, the plate core 10 and the circulation flow channel 20 can be formed by injection molding modified nylon, which has a better heat conductivity coefficient and can improve the heat exchange efficiency with the battery cell module 200. The board core 10 has a mounting cavity 121, and the surface heat dissipation flow channel 23 is disposed in the mounting cavity 121, and the mounting cavity 121 can accommodate a plurality of sub heat dissipation flow channels 2311, a first communication channel and a second communication channel. The top of the mounting cavity 121 has an opening.
As shown in fig. 3, based on the above embodiment, the liquid cooling plate assembly 100 provided in the embodiment of the present application further includes a bottom plate 60 and a plugging plate 50, where the plugging plate 50 is covered at the top opening of the installation cavity 121 to seal the installation cavity 121. By this arrangement, heat loss in the surface heat dissipation flow path 23 can be prevented. The bottom plate 60 is disposed at the bottom of the core 10, and the bottom plate 60 may cover the bottom surface of the first liquid cooling plate 11, and the bottom plate 60 may protect the circulation flow channel 20 and may prevent the fluid in the circulation flow channel 20 from exchanging heat with the outside.
Further, the base plate 60 and the plugging plate 50 are made of common nylon, the thermal conductivity coefficient is small, the battery cell module 200 can be insulated to a certain extent, and the base plate 60 and the plugging plate 50 can be connected to the board core 10 by plastic welding.
In this specification, each embodiment or implementation is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
Generally, terms should be understood at least in part by use in the context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, at least in part depending on the context. Similarly, terms such as "a" or "an" may also be understood to convey a singular usage or a plural usage, depending at least in part on the context.
It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The liquid cooling plate assembly is used for carrying out heat management on the battery cell module and is characterized by comprising a circulating runner and a plate core;
the plate core comprises a first liquid cooling plate and a plurality of second liquid cooling plates, the circulating runner comprises a water inlet runner, a water outlet runner and a surface heat dissipation runner which are communicated, wherein the water inlet runner and the water outlet runner are arranged on the first liquid cooling plate, and the surface heat dissipation runner is arranged on the second liquid cooling plate;
along the first direction, a plurality of be the row and the interval set up in between the second liquid cooling board on the first liquid cooling board, adjacent two form sub-accommodation space between the second liquid cooling board, the electric core of electric core module set up in the sub-accommodation space, just the side of electric core with the contact of second liquid cooling face.
2. The liquid cooled plate assembly of claim 1 wherein the plate core further comprises a spacer plate;
the partition plate is arranged between two adjacent second liquid cooling plates, and forms a grid-shaped structure with a plurality of accommodating grids, and each accommodating grid is configured to accommodate one electric core.
3. The liquid cooling plate assembly according to claim 2, wherein the plate core further comprises two side plates disposed opposite each other;
along a second direction, the two side plates are respectively arranged at two sides of the second liquid cooling plate and positioned on the first liquid cooling plate, and the first liquid cooling plate, the second liquid cooling plate and the side plates enclose a containing space;
the accommodating space comprises a plurality of sub-accommodating spaces.
4. The liquid cooling plate assembly of claim 2, further comprising a heat conducting plate;
along a first direction, the heat conducting plate is arranged on the side surface of the second liquid cooling plate, which faces the battery cell.
5. The liquid cooled plate assembly of claim 4 wherein a surface of the heat conductive plate facing away from the second liquid cooled plate is provided with a plurality of guide teeth;
the tooth portions of the guide teeth are inclined obliquely downward in a third direction.
6. The liquid cooled plate assembly of claim 1 wherein the face heat sink flow path includes at least one heat sink assembly;
the heat dissipation assembly comprises a first communication flow passage, a second communication flow passage and a plurality of sub heat dissipation flow passages which are communicated with each other;
the first communication flow passage and the second communication flow passage are oppositely arranged along a third direction and extend along a second direction;
the plurality of sub heat dissipation flow passages are arranged between the first communication flow passage and the second communication flow passage at intervals along the second direction, and extend along the third direction;
among the plurality of sub heat dissipation flow channels, the sub heat dissipation flow channels located at two sides along the second direction are respectively communicated with the water inlet flow channel and the water outlet flow channel.
7. The liquid cooling plate assembly according to claim 6, wherein a plurality of passages are provided at a bottom of each of the sub heat dissipation flow paths;
each passage is provided with a flow control switch, and the flow rate flowing into the heat dissipation assembly is adjusted by controlling the flow control switch of each heat dissipation assembly.
8. The liquid cooled plate assembly of any one of claims 1 to 7, further comprising a bottom plate and a shutoff plate;
the bottom plate is arranged at the bottom of the plate core, the plate core is provided with an installation cavity, and the surface heat dissipation flow channel is arranged in the installation cavity;
the plugging plate cover is arranged at the top opening of the installation cavity.
9. The liquid cooling plate assembly according to claim 8, wherein the water inlet flow passage is provided with a water inlet communicated with the water inlet flow passage, and the water outlet flow passage is provided with a water outlet communicated with the water outlet flow passage;
the water inlet and the water outlet are positioned at one end of the first liquid cooling plate along the first direction, and the water inlet and the water outlet are positioned at the middle position of the first liquid cooling plate along the second direction;
the liquid cooling plate assembly further comprises a water inlet pipe, a water outlet pipe, a first plug connector and a second plug connector;
the water inlet pipe is integrated on the first liquid cooling plate and is communicated with the water inlet, and the first plug connector is configured to be plugged into the water inlet pipe; the water outlet pipe is integrated on the first liquid cooling plate and communicated with the water outlet, and the second plug connector is configured to be plugged into the water outlet pipe.
10. A power cell comprising a cell module and the liquid cooled panel assembly of any one of claims 1 to 9;
the battery cell module comprises a plurality of battery cells;
the liquid cooling plate assembly comprises a plate core and a circulating runner, wherein the plate core comprises a first liquid cooling plate and a plurality of second liquid cooling plates, the circulating runner comprises a water inlet runner, a water outlet runner and a surface heat dissipation runner which are communicated, the water inlet runner and the water outlet runner are arranged on the first liquid cooling plates, and the surface heat dissipation runner is arranged on the second liquid cooling plates;
along the first direction, a plurality of be the row and the interval set up in between the second liquid cooling board on the first liquid cooling board, adjacent two form sub-accommodation space between the second liquid cooling board, the electric core set up in the sub-accommodation space, and with the contact of second liquid cooling face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311590535.4A CN117613457A (en) | 2023-11-22 | 2023-11-22 | Liquid cooling plate assembly and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311590535.4A CN117613457A (en) | 2023-11-22 | 2023-11-22 | Liquid cooling plate assembly and power battery |
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| CN117613457A true CN117613457A (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311590535.4A Pending CN117613457A (en) | 2023-11-22 | 2023-11-22 | Liquid cooling plate assembly and power battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118231850A (en) * | 2024-03-11 | 2024-06-21 | 广州市均能科技有限公司 | Liquid cooling battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118231850A (en) * | 2024-03-11 | 2024-06-21 | 广州市均能科技有限公司 | Liquid cooling battery pack |
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