CN115441094B - Liquid cooling plate, battery assembly, electric vehicle and design method - Google Patents
Liquid cooling plate, battery assembly, electric vehicle and design method Download PDFInfo
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- CN115441094B CN115441094B CN202211388512.0A CN202211388512A CN115441094B CN 115441094 B CN115441094 B CN 115441094B CN 202211388512 A CN202211388512 A CN 202211388512A CN 115441094 B CN115441094 B CN 115441094B
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
-
- 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
-
- 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
-
- 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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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 invention discloses a liquid cooling plate, a battery assembly, an electric vehicle and a design method, which belong to the technical field of new energy automobiles and comprise a plurality of liquid cooling plate assemblies with the same structure and communicated channels, wherein each liquid cooling plate assembly comprises a base plate, channel rib structures with the same structure and communicated with each other are symmetrically arranged on two sides of each base plate, and cooling liquid is pre-filled in the channel rib structures and the base plates. The invention discloses a liquid cooling plate, a battery assembly, an electric vehicle and a design method, wherein a front flow uniform distribution structure, a tail flow uniform distribution structure, an end runner polymerization structure, a tail runner polymerization structure and a parallel shunting structure are respectively arranged on two sides of a substrate, so that the liquid cooling plate has excellent heat dissipation performance, shows excellent performance in temperature uniformity, can play a role in protecting thermal runaway of a battery, and reduces the thermal spreading speed of a battery core; and the battery core can be insulated, and the drastic temperature change is delayed.
Description
Technical Field
The invention discloses a liquid cooling plate, a battery assembly, an electric vehicle and a design method, and belongs to the technical field of new energy automobiles.
Background
At present, the development prospect of new energy automobiles is very wide. The new energy automobile has the advantages of high energy efficiency, zero emission, no pollution, high specific energy, low noise, high reliability and the like. The power battery system is used as a main energy storage component of the new energy battery vehicle, and mainly ensures the functions of driving of the whole vehicle, the power demand of high-low voltage components, braking energy recovery, energy regulation of a hybrid power engine system and the like. The lower box body and the liquid cooling plate of the battery assembly are used as core components for protecting the structure of the battery assembly and realizing the heat management function, and the importance of the lower box body and the liquid cooling plate is self-evident.
At present, the mainstream battery assembly scheme is a standard module or a CTP configuration battery assembly, and the two schemes have complicated structures and are limited by Z-direction arrangement height, low integration, low efficiency of a thermal management system and low heat exchange efficiency.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a liquid cooling plate, a battery assembly, an electric vehicle and a design method, and mainly solves the industrial problems of low heat exchange efficiency of the liquid cooling plate, low modularization level of a heat management system and low integration level of the battery assembly in the prior art.
The technical scheme of the invention is as follows:
according to a first aspect of embodiments of the present invention, there is provided a liquid cooling plate, including a plurality of liquid cooling plate assemblies having the same structure and a plurality of channels communicated with each other, where the liquid cooling plate assemblies include a substrate, and two sides of the substrate are symmetrically provided with channel rib structures having the same structure and communicated with each other, and the channel rib structures and the channel interiors of the substrate are pre-filled with cooling liquid.
Preferably, the flow channel rib structure comprises a front flow uniform distribution structure and a tail flow uniform distribution structure which are symmetrically arranged on a substrate and have the same structure, a tip flow polymerization structure and a tail flow polymerization structure which are symmetrically arranged on the substrate between the front flow uniform distribution structure and the tail flow uniform distribution structure and have the same structure are arranged on the substrate between the tip flow polymerization structure and the tail flow polymerization structure, a parallel flow distribution structure is arranged on the substrate between the tip flow polymerization structure and the tail flow polymerization structure, the left end and the right end of the substrate are provided with a tip liquid cooling plate inlet and a liquid cooling plate outlet which are mutually communicated with adjacent liquid cooling plate assemblies, the upper end and the lower end of the substrate are provided with a top liquid cooling plate inlet and a lower liquid cooling plate inlet which are mutually communicated with the tip flow uniform distribution structure and the tail flow uniform distribution structure through being arranged in the substrate, the tip flow liquid cooling plate inlet and the tail flow uniform distribution structure are respectively communicated with the tip flow polymerization structure and the tail flow uniform distribution structure through being arranged in the substrate, and the tip flow uniform distribution structure and the tail flow distribution structure are respectively communicated with the tip flow uniform distribution structure and the tip flow distribution structure through being arranged in the substrate.
Preferably, the front flow uniform distribution structure and the tail flow uniform distribution structure are both arc-shaped turbulence structures and are used for uniformly adjusting the flow of the flowing cooling liquid.
Preferably, the parallel flow dividing structure comprises a plurality of groups of flow channels, and the plurality of groups of flow channels are arranged in parallel.
According to a second aspect of an embodiment of the present invention, there is provided a battery assembly applied to the liquid cooling plate of the first aspect, including:
lower box, lower box includes:
a bezel, the bezel comprising: the two end beams and the two side beams are fixedly connected with the two end beams respectively;
the liquid cooling plate is fixedly connected to the frame, the upper surface of the liquid cooling plate can be fixedly connected with the battery module, and the liquid cooling plate is configured to cool the battery module.
Preferably, the liquid cooling plate assembly of the liquid cooling plate is closed to form a closed end by an end liquid cooling plate inlet, an end liquid cooling plate outlet, a top liquid cooling plate inlet and a lower liquid cooling plate inlet which are close to the frame.
According to a third aspect of the embodiments of the present invention, there is provided an electric vehicle including a vehicle body and the battery assembly of the second aspect.
According to a fourth aspect of embodiments of the present invention, there is provided a design method for designing the liquid-cooled panel of the first aspect, including:
step S1, taking the ultimate cooling power of the battery module, the ultimate bearing load of the module and the ultimate impact strength of the bottom of the battery as design input;
s2, determining the limit size of the battery liquid cooling plate according to the limit cooling power of the battery module, the limit bearing load of the module and the limit impact strength of the bottom of the battery;
s3, respectively determining a front flow uniform distribution structure, a tail flow uniform distribution structure, an end flow channel polymerization structure, a tail flow channel polymerization structure and a parallel flow distribution structure;
and S4, adopting computational structural mechanics simulation to adjust the limit size, the front flow uniform distribution structure, the tail flow uniform distribution structure, the end runner polymerization structure, the tail runner polymerization structure and the parallel flow distribution structure of the battery liquid cooling plate.
Preferably, the step S2 includes:
determining the limit size area according to the limit cooling power of the battery module, the limit bearing load of the module and the limit impact strength of the bottom of the battery through a formula (1):
wherein: QD is the limit impact strength of the bottom of the battery, ZB is the limit cooling power of the battery module, CC is the total energy related structural coefficient of the battery module, the value is 0.5-0.9, and GF is the limit bearing load of the module; a is a module weight compensation parameter with the value of 0 > A > to-0.56, D is a module integration compensation parameter with the value of 72 degrees > D > 36 degrees.
Determining the limit size of a battery liquid cooling plate according to the limit size area, wherein the limit size of the battery liquid cooling plate comprises: battery liquid cooling plate length, battery liquid cooling plate width and battery liquid cooling plate thickness.
Preferably, the length of the battery liquid cooling plate is determined by equation (2):
wherein: c is the length of a liquid cold plate of the battery, GB is the process length limit size of the module, and E is a safe size coefficient, and the value is 1.23-1.83;
the width of the liquid cooling plate of the battery is determined by the formula (3):
wherein: h is the width of the liquid cooling plate of the battery;
the thickness of the battery liquid cooling plate is determined by the formula (4):
wherein: h is the width of the liquid cooling plate of the battery.
The invention has the beneficial effects that:
the invention discloses a liquid cooling plate, a battery assembly, an electric vehicle and a design method, wherein a front flow uniform distribution structure, a tail flow uniform distribution structure, an end runner polymerization structure, a tail runner polymerization structure and a parallel shunting structure are respectively arranged on two sides of a substrate, so that the liquid cooling plate has excellent heat dissipation performance, shows excellent performance in temperature uniformity, can play a role in protecting thermal runaway of a battery, and reduces the thermal spreading speed of a battery core; and the battery core can be insulated, and the drastic temperature change is delayed.
Drawings
Fig. 1 is an overall structural view of a liquid cooling plate according to the present invention.
Fig. 2 is an overall structural view of a liquid-cooled plate assembly according to the present invention.
Fig. 3 is an isometric view of a battery assembly of the present invention.
Fig. 4 is a major side view of a battery assembly of the present invention.
Fig. 5 is a partial isometric view of a battery assembly of the invention.
The system comprises a battery module 1, a side beam 2, a liquid cooling plate assembly 3, an end beam 4, a connecting rod 13, a liquid cooling plate inlet 301, a front flow uniform distribution structure 302, a parallel shunting structure 303, a top liquid cooling plate inlet 304, a tail flow uniform distribution structure 305, a lower liquid cooling plate inlet 306, a liquid cooling plate outlet 307, a tail flow polymerization structure 308 and a terminal flow polymerization structure 309.
Detailed Description
The invention is further illustrated below with reference to the accompanying figures 1-5:
the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a first embodiment of the present invention provides a liquid cooling plate based on the prior art, which includes a plurality of liquid cooling plate assemblies 3 having the same structure and having channels communicated with each other, where each of the liquid cooling plate assemblies 3 includes a substrate, channel rib structures having the same structure and communicated with each other are symmetrically disposed on two sides of the substrate, and the channel rib structures and the channels of the substrate are pre-filled with cooling liquid and do not participate in the flow of the cooling liquid of the internal battery thermal management system. The battery thermal runaway can be protected, and the thermal spreading speed of the battery core is reduced; and the battery core can be insulated, and the drastic temperature change is delayed.
As shown in fig. 2, the flow channel rib structure includes a front flow uniform distribution structure 302 and a tail flow uniform distribution structure 305 that are symmetrically arranged on the substrate and have the same structure, and both the front flow uniform distribution structure 302 and the tail flow uniform distribution structure 305 are arc-shaped turbulence structures for uniformly adjusting the flow of the flowing cooling liquid, reducing the impact force of the flowing cooling liquid, and uniformly distributing the internal flow.
An end flow channel polymerization structure 309 and a tail flow channel polymerization structure 308 which are identical in structure are symmetrically arranged on the substrate between the front flow uniform distribution structure 302 and the tail flow uniform distribution structure 305, a parallel flow distribution structure 303 is arranged on the substrate between the end flow channel polymerization structure 309 and the tail flow channel polymerization structure 308, the flow distribution structure 303 comprises a plurality of groups of flow channels, and the flow channels are arranged in parallel.
The left end and the right end of the base plate are provided with an end liquid cooling plate inlet 301 and a liquid cooling plate outlet 307 which are mutually communicated with the adjacent liquid cooling plate assemblies 3, and the upper end and the lower end of the base plate are provided with a top liquid cooling plate inlet 304 and a lower liquid cooling plate inlet 306 which are mutually communicated with the adjacent liquid cooling plate assemblies 3.
The end liquid cooling plate inlet 301 and the liquid cooling plate outlet 307 are respectively communicated with the front flow uniform distribution structure 302 and the tail flow uniform distribution structure 305 through the flow channels arranged in the substrate, the front flow uniform distribution structure 302 and the tail flow uniform distribution structure 305 are respectively communicated with the end flow channel polymerization structure 309 and the tail flow channel polymerization structure 308 through the flow channels arranged in the substrate, the end flow channel polymerization structure 309 and the tail flow channel polymerization structure 308 are communicated with the parallel flow splitting structure 303 through the flow channels arranged in the substrate, and the top liquid cooling plate inlet 304 and the lower liquid cooling plate inlet 306 are respectively communicated with the front flow uniform distribution structure 302, the tail flow uniform distribution structure 305, the end flow channel polymerization structure 309, the tail flow channel polymerization structure 308 and the parallel flow splitting structure 303 through the flow channels arranged in the substrate.
As shown in fig. 3 to 5, a second embodiment of the present invention provides a battery assembly on the basis of the first embodiment, including: lower box, lower box includes: frame and the liquid cooling plate of the disclosure of the first embodiment, the frame includes: two end beams 4 and two side roof beams 2, the both ends of side roof beam 2 are respectively through welded fastening in two end beams 4. The liquid cooling plate is fixedly connected to the frame through welding, the upper surface of the liquid cooling plate can be connected with the battery module 1 through bolts or welding and other fixing modes, and the liquid cooling plate is configured to cool the battery module 1.
The end liquid cooling plate inlet 301, the end liquid cooling plate outlet 307, the top liquid cooling plate inlet 304 and the lower liquid cooling plate inlet 306 of the liquid cooling plate assembly 3 close to the frame are all closed to form a closed end.
A third embodiment of the invention provides an electric vehicle including a vehicle body and the battery assembly according to the second embodiment on the basis of the second embodiment.
A fourth embodiment of the present invention provides a design method based on the first embodiment, for designing the liquid cooling plate according to the first embodiment, including:
step S1, taking the ultimate cooling power of the battery module, the ultimate bearing load of the module and the ultimate impact strength of the bottom of the battery as design input;
s2, determining the limit size of the battery liquid cooling plate according to the limit cooling power of the battery module, the limit bearing load of the module and the limit impact strength of the bottom of the battery, and specifically comprising the following steps:
determining the limit size area according to the limit cooling power of the battery module, the limit bearing load of the module and the limit impact strength of the bottom of the battery through a formula (1):
wherein: QD is the limit impact strength of the bottom of the battery, ZB is the limit cooling power of the battery module, CC is the structural coefficient related to the total energy of the battery module, the value is 0.5-0.9, and GF is the limit bearing load of the module; a is a module weight compensation parameter, the value is 0 > A > -0.56, D is a module integration compensation parameter, the value is 72 degrees > D > 36 degrees;
determining the limit size of a battery liquid cooling plate according to the limit size area, wherein the limit size of the battery liquid cooling plate comprises: battery liquid cooling plate length, battery liquid cooling plate width and battery liquid cooling plate thickness. Wherein, the length of the liquid cooling plate of the battery is determined by the formula (2):
wherein: c is the length of the liquid cooling plate of the battery, GB is the ultimate size of the process length of the module, and E is the safety size coefficient, and the value is 1.23-1.83;
the width of the liquid cooling plate of the battery is determined by the formula (3):
wherein: h is the width of the liquid cooling plate of the battery;
the thickness of the battery liquid cooling plate is determined by the formula (4):
wherein: h is the width of the battery liquid cooling plate;
step S3, respectively determining a front flow uniform distribution structure 302, a tail flow uniform distribution structure 305, an end runner polymerization structure 309, a tail runner polymerization structure 308 and a parallel flow distribution structure 303;
and S4, adjusting the limit size of the battery liquid cooling plate, the front flow uniform distribution structure 302, the tail flow uniform distribution structure 305, the end flow channel aggregation structure 309, the tail flow channel aggregation structure 308 and the parallel shunting structure 303 by adopting computational structural mechanics simulation.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a liquid cooling plate, its characterized in that, includes liquid cooling plate subassembly (3) that a plurality of structures are the same and the runner is linked together, liquid cooling plate subassembly (3) includes the base plate, base plate both sides symmetrical arrangement has the runner muscle structure that the structure is the same and communicate each other, it has the coolant liquid to fill in the runner is inside of runner muscle structure and base plate, runner muscle structure includes symmetrical arrangement on the base plate and the same anterior flow evenly distributed structure (302) of structure and afterbody flow evenly distributed structure (305), symmetrical arrangement has the same tip runner polymeric structure (309) and afterbody runner polymeric structure (308) on the base plate between anterior flow evenly distributed structure (302) and afterbody flow evenly distributed structure (305), be provided with parallel reposition of redundant personnel structure (303) on the base plate between tip runner polymeric structure (309) and afterbody runner polymeric structure (308), both ends are equipped with adjacent liquid cooling plate subassembly (3) intercommunication tip liquid cooling plate inlet (301) and liquid cooling plate outlet (307) about the base plate, the both ends of base plate are equipped with adjacent liquid cooling plate subassembly (3) intercommunication top liquid cooling plate inlet (304) and lower part liquid cooling plate inlet (306) and liquid cooling plate inlet (302) and liquid cooling plate outlet (307) are connected through the even distribution structure (302) before the tip runner inlet (302) and afterbody flow evenly distributed structure (305) respectively, the even distribution structure (302) and afterbody flow evenly distributed structure (305) set up and the liquid cooling plate inlet (302) and afterbody flow evenly distributed structure (305) are linked together, the liquid cooling plate inlet (302) and the even distributed structure (302) are linked together 305 Through setting up and be linked together with tip runner polymeric structure (309) and afterbody runner polymeric structure (308) respectively at the inside runner of base plate, tip runner polymeric structure (309) and afterbody runner polymeric structure (308) are linked together through setting up at the inside runner of base plate and parallel reposition of redundant personnel structure (303), top liquid cooling plate entry (304) and lower part liquid cooling plate entry (306) are linked together with anterior flow evenly distributed structure (302), afterbody flow evenly distributed structure (305), tip runner polymeric structure (309), afterbody runner polymeric structure (308) and parallel reposition of redundant personnel structure (303) respectively through setting up at the inside runner of base plate.
2. A liquid cooling plate as claimed in claim 1, wherein the front (302) and rear (305) flow equalization structures are circular arc shaped turbulators for uniform flow regulation of the incoming cooling liquid.
3. A liquid cooling plate according to claim 2, characterised in that the parallel flow dividing structure (303) comprises several sets of flow channels, which are arranged parallel to each other.
4. A battery assembly, for use with a liquid cold plate according to any of claims 1-3, comprising:
lower box, lower box includes:
a bezel, the bezel comprising: the two end beams (4) and the two side edge beams (2), wherein the two ends of the side edge beams (2) are respectively and fixedly connected with the two end beams (4);
the liquid cooling board, liquid cooling board fixed connection is in the frame, the upper surface of liquid cooling board can fixed connection battery module (1), the liquid cooling board is configured into cooling battery module (1), tip liquid cooling board entry (301), tip liquid cooling board export (307), top liquid cooling board entry (304) and lower part liquid cooling board entry (306) that liquid cooling board assembly (3) of liquid cooling board are close to the frame all seal and form the blind end.
5. An electric vehicle characterized by comprising a vehicle body and a battery assembly as recited in claim 4.
6. A design method for designing a liquid cooling panel according to any one of claims 1 to 3, comprising:
step S1, taking the ultimate cooling power of the battery module, the ultimate bearing load of the module and the ultimate impact strength of the bottom of the battery as design input;
step S2, determining the limit size of the battery liquid cooling plate according to the limit cooling power of the battery module, the limit bearing load of the module and the limit impact strength of the bottom of the battery, and comprising the following steps:
determining the limit size area according to the limit cooling power of the battery module, the limit bearing load of the module and the limit impact strength of the bottom of the battery through a formula (1):
wherein: QD is the limit impact strength of the bottom of the battery, ZB is the limit cooling power of the battery module, CC is the total energy related structural coefficient of the battery module, the value is 0.5-0.9, and GF is the limit bearing load of the module; a is a module weight compensation parameter with the value of 0 > A > to-0.56, D is a module integration compensation parameter with the value of 72 degrees > D > 36 degrees.
Determining the limit size of a battery liquid cooling plate according to the limit size area, wherein the limit size of the battery liquid cooling plate comprises: the length of the battery liquid cooling plate, the width of the battery liquid cooling plate and the thickness of the battery liquid cooling plate;
the length of the battery liquid cooling plate is determined by the formula (2):
wherein: c is the length of the liquid cooling plate of the battery, GB is the ultimate size of the process length of the module, and E is the safety size coefficient, and the value is 1.23-1.83;
the width of the liquid cooling plate of the battery is determined by the formula (3):
wherein: h is the width of the battery liquid cooling plate;
the thickness of the battery liquid cooling plate is determined by the formula (4):
wherein: h is the width of the battery liquid cooling plate;
s3, respectively determining a front flow uniform distribution structure (302), a tail flow uniform distribution structure (305), an end flow channel polymerization structure (309), a tail flow channel polymerization structure (308) and a parallel flow dividing structure (303);
and S4, adjusting the limit size of the battery liquid cooling plate, a front flow uniform distribution structure (302), a tail flow uniform distribution structure (305), an end flow channel aggregation structure (309), a tail flow channel aggregation structure (308) and a parallel flow dividing structure (303) by adopting computational structural mechanics simulation.
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| CN202211388512.0A CN115441094B (en) | 2022-11-08 | 2022-11-08 | Liquid cooling plate, battery assembly, electric vehicle and design method |
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| CN114883684A (en) * | 2022-03-29 | 2022-08-09 | 中国第一汽车股份有限公司 | Control device and method for liquid cooling plate with uniform dynamic flow, battery and vehicle |
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| JP5843411B2 (en) * | 2011-06-21 | 2016-01-13 | エルジー ケム． エルティーディ． | New air-cooled battery pack |
| CN208045561U (en) * | 2017-11-10 | 2018-11-02 | 宝沃汽车（中国）有限公司 | Battery case, power battery assembly and vehicle |
| CN113422139B (en) * | 2021-06-18 | 2022-05-31 | 中国第一汽车股份有限公司 | Battery assembly, electric vehicle and design method |
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| CN114883684A (en) * | 2022-03-29 | 2022-08-09 | 中国第一汽车股份有限公司 | Control device and method for liquid cooling plate with uniform dynamic flow, battery and vehicle |
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