WO2023164833A1 - 液冷板、电池托板、电池托架和汽车 - Google Patents

液冷板、电池托板、电池托架和汽车 Download PDF

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Publication number
WO2023164833A1
WO2023164833A1 PCT/CN2022/078815 CN2022078815W WO2023164833A1 WO 2023164833 A1 WO2023164833 A1 WO 2023164833A1 CN 2022078815 W CN2022078815 W CN 2022078815W WO 2023164833 A1 WO2023164833 A1 WO 2023164833A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
liquid
plate body
battery tray
battery
Prior art date
Application number
PCT/CN2022/078815
Other languages
English (en)
French (fr)
Inventor
潘福中
严胜利
陈凯
周必达
牛亚琪
Original Assignee
威睿电动汽车技术(宁波)有限公司
极氪汽车(宁波杭州湾新区)有限公司
浙江吉利控股集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 威睿电动汽车技术(宁波)有限公司, 极氪汽车(宁波杭州湾新区)有限公司, 浙江吉利控股集团有限公司 filed Critical 威睿电动汽车技术(宁波)有限公司
Priority to PCT/CN2022/078815 priority Critical patent/WO2023164833A1/zh
Publication of WO2023164833A1 publication Critical patent/WO2023164833A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric 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
    • H01M10/62—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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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

Definitions

  • the present application relates to the field of automobiles, in particular to a liquid cooling plate, a battery tray, a battery bracket and an automobile.
  • the support plate of the battery bracket is generally equipped with a liquid cooling plate, which can absorb the heat emitted by the power battery and prevent the performance of the power battery from being affected by excessive temperature.
  • the liquid cooling plate is installed at the bottom of the power battery and directly contacts the power battery.
  • the existing liquid cooling plate has poor structural stability and is prone to deformation, which will not only reduce the cooling capacity of the liquid cooling plate, but also cause the installation of the power battery Instability, which in turn affects the performance of the power battery.
  • the main purpose of this application is to propose a liquid cold plate, which aims to improve the structural stability of the liquid cold plate to ensure the working performance of the power battery.
  • the liquid cold plate proposed by this application includes:
  • the first board body and the second board body arranged in layers;
  • the supporting piece is connected to the first board and/or the second board.
  • the first board is connected to the second board, and the support member is disposed on a side of the second board away from the first board.
  • the second plate body has a connected connecting section and a spacer section, the connecting section is recessed toward the first plate body than the spacer section, and the connecting section is connected to the first plate body, the spacer section is spaced from the first plate body, the two sides of the spacer section are respectively connected with a connecting section, and the cooling liquid channel is formed between the spacer section and the first plate body between.
  • the second plate body is provided with a plurality of interval sections, so as to form a plurality of cooling liquid channels distributed at intervals along the distribution direction of the interval sections.
  • the support member is connected to a side of the connecting section away from the first board.
  • one connecting section is correspondingly connected to one support, and the extension direction of the support is parallel to the extension direction of the cooling liquid channel.
  • first plate body and the second plate body are connected by brazing.
  • the second plate body and the support member are connected by brazing.
  • the first plate body and the second plate body are configured as aluminum plates.
  • the first board body and the second board body are processed and formed by a stamping process.
  • the present application also proposes a battery tray, including the aforementioned liquid-cooled plate.
  • the battery tray further includes a filling layer and a bottom plate, the filling layer is connected to one side of the liquid cooling plate, and the bottom plate is connected to a side of the filling layer away from the liquid cooling plate .
  • the filling layer is made of foam or honeycomb.
  • liquid cooling plate, the filling layer and the bottom plate are connected together by molding, gluing or welding.
  • the battery tray further includes a connector, the connector is disposed on a side of the liquid-cooled plate away from the bottom plate, and is configured to be connected to the mounting bracket.
  • the connecting piece is provided with a first connecting hole, and the mounting bracket is connected to the first connecting hole through a fixing piece.
  • the battery tray is further provided with a second connection hole penetrating from the bottom plate to the liquid cooling plate, and the mounting bracket is connected to the second connection hole through a fixing member.
  • the present application also proposes a battery bracket, including the aforementioned battery bracket.
  • the present application also proposes an automobile, including the aforementioned battery bracket.
  • the support member can be arranged between the first board body and the second board body, and the two sides are respectively connected to the first board body and the second board body, and the support member can also be connected to the side of the first board body that deviates from the One side of the second board or the side of the second board away from the first board.
  • the support can improve the structural stability of the liquid cold plate.
  • the first plate body and the second plate body are not easy to deform, and the internal cooling liquid channel
  • the structural stability is also guaranteed, which can avoid the leakage of coolant, thereby ensuring the cooling capacity of the liquid cold plate, and the liquid cold plate set up in this way can be used for the stable installation of the power battery, so that the power battery can be stably installed on the Liquid cooling plate, and accept the cooling provided by the liquid cooling plate stably, which is beneficial to ensure the working performance of the power battery.
  • the cooling liquid flows in the liquid-cooled pipes.
  • the cooling liquid channel is formed by the first board and the second board.
  • the heat exchange area between the power battery and the coolant is large, which is conducive to improving the heat exchange efficiency between the power battery and the coolant, so that the temperature of the power battery can drop rapidly, thereby ensuring power The working performance of the battery.
  • Fig. 1 is a schematic diagram of the explosion structure of an embodiment of the battery pallet of the present application
  • Fig. 2 is a schematic diagram of the explosive structure of an embodiment of the liquid cold plate of the present application
  • Fig. 3 is a front view of the cross-sectional structure of an embodiment of the battery tray of the present application.
  • Fig. 4 is a schematic cross-sectional structural view of the battery tray in Fig. 3 from another perspective;
  • Fig. 5 is a front view of the section structure of another embodiment of the battery tray of the present application.
  • Fig. 6 is a schematic cross-sectional structure diagram of another embodiment of the battery tray of the present application.
  • Fig. 7 is a schematic cross-sectional structural view of the battery tray in Fig. 6 from another perspective;
  • Fig. 8 is a schematic cross-sectional structure diagram of another embodiment of the battery tray of the present application.
  • FIG. 9 is a schematic cross-sectional view of the battery tray in FIG. 8 from another perspective.
  • label name label name 100 Liquid cold plate 200 Bottom plate 101 Coolant channel 210 first connection 110 first board 220 second connection 120 second board 300 fill layer 121 connecting segment 400 connector 122 spacer 410 first connection hole 130 supporting item 500 Second connection hole 700 Fastener 600 Mounting brackets
  • the directional indications are only used to explain the position in a certain posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly.
  • This application proposes a liquid cold plate 100 .
  • the liquid cooling plate 100 includes a first plate body 110 and a second plate body 120 arranged in layers, and the first plate body 110 and the second plate body 110 A coolant channel 101 is formed between the plates 120 , and the coolant flows in the coolant channel 101 .
  • the liquid cooling plate 100 is further provided with a support member 130 connected to at least one of the first plate body 110 and the second plate body 120 . That is, as shown in FIG.
  • the support member 130 can be arranged between the first plate body 110 and the second plate body 120, and the two sides are respectively connected to the first plate body 110 and the second plate body 120, and the support member 130 also It can be connected to the side of the first plate 110 away from the second plate 120, or, as shown in FIGS. .
  • the support member 130 can all play a role in improving the structural stability of the liquid cold plate 100.
  • the first plate body 110 and the second plate body 120 are not easily deformed, and the internal The structural stability of the coolant flow channel 101 is also guaranteed, which can avoid coolant leakage, thereby ensuring the cooling capacity of the liquid cold plate 100, and the liquid cold plate 100 set in this way can be used for stable installation of the power battery, thus,
  • the power battery can be stably installed on the liquid cooling plate 100 and receive the cooling provided stably by the liquid cooling plate 100 , which is beneficial to ensure the working performance of the power battery.
  • the cooling liquid flows in the liquid cooling pipes.
  • the cooling liquid channel 101 is composed of the first board body 110 and the second board body 120 The structure is formed.
  • the heat exchange area between the power battery and the cooling liquid is large, which is conducive to improving the heat exchange efficiency between the power battery and the cooling liquid, so that the temperature of the power battery can be quickly dropped. , so as to ensure the working performance of the power battery.
  • the first plate body 110 is connected to the second plate body 120 , and the support member 130 is arranged on the second plate body 120 on a side away from the first plate body 110 .
  • the support member 130 is arranged on the outside of the second plate body 120, and the coolant channel 101 is formed between the first plate body 110 and the second plate body 120, thus, the setting of the support member 130 and the cooling liquid
  • the arrangement of the flow channels 101 may not interfere with each other, which is beneficial to the processing and assembly of the liquid cooling plate 100 .
  • the support member 130 is made of aluminum alloy, and the density of aluminum is low, so that the support member 130 has sufficient structural strength, but also has the characteristics of light weight, and will not add too much weight to the liquid cooling plate 100 .
  • a plurality of support members 130 arranged at intervals are arranged between the first board body 110 and the second board body 120, and a Coolant flow channel 101.
  • the second plate body 120 has a connected connecting section 121 and a spacer section 122, the connecting section 121 is recessed toward the first plate body 110 than the spacer section 122, The connecting section 121 is connected to the first plate body 110, the spacer section 122 is spaced from the first plate body 110, and the two sides of the spacer section 122 are respectively connected with a connecting section 121.
  • the coolant channel 101 is formed between the spacer section 122 and the first plate body 110 .
  • the cross-section of the second plate body 120 at the cooling liquid channel 101 is wavy, and can have a connecting section 121 connected to the first plate body 110 and a spacer spaced apart from the first plate body 110
  • the section 122 and the connecting section 121 are distributed on both sides of the spacer section 122 , so that a passage for the cooling liquid to flow can be formed between the spacer section 122 and the second plate body 120 , that is, the cooling liquid flow channel 101 .
  • the first plate body 110 or the spacer section 122 is in contact with the power battery, which can ensure that the liquid cooling plate 100 and the power battery have a sufficient heat exchange area, so as to ensure the heat exchange efficiency between the power battery and the cooling liquid, and avoid power
  • the heat generated by the battery will accumulate and affect the performance of the power battery.
  • at least one of the first plate body 110 and the second plate body 120 is provided with a plurality of ribs at intervals, and the first plate body 110 and the second plate body 120 are connected. Afterwards, a coolant channel 101 is formed between every two adjacent ribs.
  • the second plate body 120 is provided with multiple sections of the spacer sections 122 to form a plurality of the cooling liquid channels 101 distributed at intervals along the distribution direction of the spacer sections 122 .
  • the cooling liquid flows in the plurality of cooling liquid channels 101 , which can facilitate sufficient heat exchange between the cooling liquid and the power battery, so as to ensure the working performance of the power battery.
  • the extending direction of the spacer segment 122 is set at an angle to its distribution direction, which may be set at a right angle or approximately at a right angle, or at other angles, and the extending direction of the connecting segment 121 is parallel (parallel or approximately parallel) to the The extending direction of the spacer segment 122 .
  • the adjacent cooling liquid passages 101 are not connected to each other, and the two ends of each spacer section 122 are respectively provided with a cooling liquid inlet and a cooling liquid outlet, and the cooling liquid comes from the cooling liquid of each cooling liquid flow passage 101
  • the inlet flows in, and after exchanging heat with the power battery, it flows out from the coolant outlet of each coolant flow channel 101 one by one, wherein the same end of multiple coolant flow channels 101 can be alternately provided with coolant outlets and coolant inlets , to improve the uniformity of heat exchange between the coolant and the power battery, so that the surface temperature of the power battery is evenly distributed.
  • a communication port can be provided at the end of the connecting section 121, through which two adjacent cooling liquid passages 101 can communicate, wherein, as shown in FIG.
  • Different ends of different ends are provided with communication ports, so that each coolant flow channel 101 is connected in an S shape.
  • Coolant outlet in this way, can also improve the uniformity of heat exchange between the coolant and the power battery, so that the surface temperature of the power battery is evenly distributed; it is also possible to choose to open a communication port in the middle of the connecting section 121, and the communication of different connecting sections 121 The openings are staggered to increase the flow distance of the cooling liquid in the cooling liquid flow channel 101, thereby ensuring that the cooling liquid can fully exchange heat with the power battery.
  • the support member 130 is connected to a side of the connecting section 121 away from the first plate body 110 .
  • the recessed position of the connecting section 121 can be fully utilized, so that the liquid cooling plate 100 is not too thick, so as to save the installation space of the liquid cooling plate 100 .
  • the position where the connecting section 121 is connected to the first plate body 110 is very thin, and the structural strength is relatively poor.
  • the connection between the support member 130 and the connecting section 121 can effectively increase the structural strength of this position, so as to prevent the liquid cooling plate 100 from being connected. Section 121 is deformed, causing the coolant to be exposed, and the deformation may even puncture the power battery, causing safety accidents such as battery short circuit.
  • multiple supports 130 are provided, one connecting section 121 is correspondingly connected to one support 130, and the extending direction of the support 130 is in line with the cooling liquid channel.
  • the extension directions of 101 are parallel to each other. That is, the support piece 130 is arranged in a strip shape, and a support piece 130 is filled in the recess of each connecting section 121 , so that each connecting section 121 can be supported, thereby improving the structural strength of the connecting section 121 .
  • the support piece 130 is set in a plate shape, and the support piece 130 is provided with a plurality of supporting protrusions opposite to the connecting section 121, so that the connecting section 121 can also play a good role. supporting role.
  • the first plate body 110 and the second plate body 120 are configured as aluminum plates, and are formed by stamping process respectively.
  • the material of the first plate body 110 and the second plate body 120 is made of aluminum, which is not easily corroded by the cooling liquid and rusted.
  • the stamping process is used to process the first plate body 110 and the second plate body 120, which has high production efficiency and has This is beneficial to ensure the production efficiency of the liquid cold plate 100 .
  • first plate body 110 and the second plate body 120 are connected by brazing
  • second plate body 120 and the support member 130 are connected by brazing
  • Brazing refers to a welding method in which the solder below the melting point of the weldment and the weldment are heated to the melting temperature of the solder at the same time, and then the gaps in the solid workpiece are filled with liquid solder to connect the metals.
  • the brazing heating temperature is low, the joint is smooth and flat, the microstructure and mechanical properties are small, the deformation is small, and the workpiece size is accurate, which is conducive to ensuring the connection stability between the first plate body 110 and the second plate body 120 and the second plate body.
  • the stability of the connection between the connecting section 121 of 120 and the support 130 is simple, and the production investment cost is low, which is beneficial to saving the production cost of the liquid cold plate 100 .
  • the present application also proposes a battery tray, including a liquid-cooled plate 100.
  • a battery tray including a liquid-cooled plate 100.
  • the liquid-cooled plate 100 For the specific structure of the liquid-cooled plate 100, refer to the above-mentioned embodiments. Since this battery tray adopts all the technical solutions of all the above-mentioned embodiments, it has at least the above-mentioned implementation. All the beneficial effects brought by the technical solution of the example will not be repeated here.
  • the battery tray further includes a filling layer 300 and a bottom plate 200.
  • the filling layer 300 is connected to the liquid cooling plate 100
  • the bottom plate 200 is connected to the side of the filling layer 300 away from the liquid cooling plate 100 .
  • a filling layer 300 is provided between the bottom plate 200 and the liquid cooling plate 100 to enhance the structural stability of the battery tray.
  • the filling layer 300 is connected to the side of the second plate body 120 of the liquid cooling plate 100 away from the first plate body 110 , and the power battery is installed on the first plate body 110 .
  • the filling layer 300 is connected to the side of the first plate body 110 away from the second plate body 120, and the power battery is installed on the second plate body 120, together with the support member 130 and the second plate body 120.
  • the spacer sections 122 of the plate body 120 are in contact.
  • the material of the filling layer 300 is foam material or honeycomb material. It can be understood that both the honeycomb material and the foamed material have excellent properties such as shock absorption, sound insulation, heat preservation, flame retardancy and high specific strength, and the material of the filling layer 300 is set to be a foamed material or a honeycomb material, which can improve the impact resistance of the battery tray , to protect the power battery, and at the same time, it can also improve the thermal insulation performance of the battery tray, so as to avoid excessive heat exchange between the power battery and the outside world in cold weather or other specific working conditions, causing the temperature to be too low and affecting the working performance of the power battery .
  • the filling layer 300 may be made of foamed aluminum or honeycomb aluminum or foamed plastic or honeycomb plastic (such as polypropylene honeycomb). These materials all have the excellent performance of foaming materials or honeycomb materials, which is conducive to ensuring the working performance of power batteries.
  • the material of the filling layer 300 may also be ceramic honeycomb material or other metal honeycomb material or foamed ceramic material.
  • the bottom plate 200 is a carbon fiber plate or a metal plate.
  • the bottom plate 200 can have sufficient strength to resist the impact of the external environment and prevent foreign objects from piercing the bottom plate 200, so as to protect the power battery.
  • metal materials such as steel, aluminum alloy, titanium alloy, etc. can be selected.
  • the bottom plate 200 may also use other cloth-like or cage-like high-strength composite materials, such as glass fiber.
  • the liquid cooling plate 100 , the filling layer 300 and the bottom plate 200 are connected in one body by molding, gluing or welding. Specifically, when the liquid cooling plate 100, the filling layer 300 and the bottom plate 200 are connected together by molding, after molding, the two sides of the filling layer 300 will be respectively fastened and connected to the bottom plate 200 and the liquid cooling plate 100 through thermosetting resin. ; When the liquid cold plate 100, the filling layer 300 and the bottom plate 200 are connected together by gluing, after processing and forming, the two sides of the filling layer 300 will be respectively fastened and connected to the bottom plate 200 and the liquid cooling plate 100 through structural glue; The liquid cooling plate 100, the filling layer 300 and the bottom plate 200 are connected together by welding.
  • the specific method of welding is brazing, after processing and forming, the two sides of the filling layer 300 will be respectively fastened and connected to the bottom plate 200 and the bottom plate 200 by brazing material.
  • the specific welding method of the liquid cooling plate 100 is pressure welding or fusion welding, the two sides of the filling layer 300 are infiltrated and connected with the bottom plate 200 and the liquid cooling plate 100 respectively.
  • the battery tray further includes a connecting piece 400, and the connecting piece 400 is arranged on the side of the liquid cooling plate 100 away from the bottom plate 200. And set to be connected with the mounting bracket 600 .
  • the connector 400 is arranged on the side of the first board 110 away from the second board 120, the mounting bracket 600 is connected with the connector 400, that is, it can be fixed with the battery tray, and the installation bracket 600 and the battery tray Cooperating with each other, the installation position for the power battery is constructed, so that after the power battery is installed, it will not move excessively on the liquid cooling plate 100 .
  • the battery tray is fixed to the installation bracket 600 through the connector 400 , which can improve the installation convenience and stability of the installation bracket 600 .
  • the connecting member 400 may be made of aluminum alloy, and fixed to the first plate body 110 by brazing.
  • the connecting piece 400 when the connecting piece 400 is arranged at the position where the first plate body 110 is connected to the connecting section 121, when the connecting piece 400 or the mounting bracket 600 is stressed, because the other side of the connecting section 121 is connected with the supporting piece 130, due to The support function of the support member 130 prevents deformation of the position where the liquid cooling plate 100 is connected to the connecting member 400 , which is beneficial to ensure the structural stability of the battery tray.
  • the connecting member 400 is provided with a first connecting hole 410 , and the mounting bracket 600 is connected to the first connecting hole 410 through a fixing member 700 .
  • the fixing member 700 may be a screw or a bolt or a rivet or the like.
  • the connecting member 400 may also be connected to the mounting bracket 600 by welding or snap-fitting.
  • the battery tray is further provided with a second connection hole 500 penetrating from the bottom plate 200 to the liquid cooling plate 100 .
  • the installation bracket 600 is connected to the second connection hole 500 through a fixing member 700 .
  • the detachable connection between the installation bracket 600 and the battery tray can also be realized, and the convenience and stability of the connection between the installation bracket 600 and the battery tray can be ensured.
  • the first board body 110 may also be connected to the mounting bracket 600 by welding or snap fit.
  • the connector 400 can be arranged in the middle of the battery tray, and choose to open the second connection hole 500 at the side of the battery tray, so that the middle part of the battery tray can be avoided
  • the structural strength of the battery pallet is affected, and the second connecting hole 500 is directly provided on the side of the battery pallet, so that there is no need to set up the connecting piece 400 in addition, which can simplify the structure of the battery pallet and help reduce the production of the battery pallet. cost.
  • the second connection hole 500 may be disposed in the middle of the battery tray for the installation bracket 600 to be connected through the fixing member 700 .
  • the bottom plate 200 has a connected first connection portion 210 and a second connection portion 220, and the first connection portion 210 is closer to the liquid cooling plate than the second connection portion 220.
  • 100 is recessed, the first connection part 210 is connected to the liquid cooling plate 100, the second connection part 220 is connected to the side of the filling layer 300 away from the liquid cooling plate 100, and the second The connecting hole 500 is provided penetratingly from the first connecting portion 210 to the liquid cooling plate 100 .
  • the second connection hole 500 does not need to penetrate the filling layer 300, the hole depth of the second connection hole 500 can be effectively reduced, and the length of the required fixing member 700 is also reduced accordingly, which not only reduces the production cost, but also improves The connection stability of the mounting bracket 600 and the battery tray.
  • the recess of the first connecting portion 210 can accommodate the end of the fixing member 700, which can prevent the fixing member 700 from protruding from the bottom plate 200, thereby preventing the fixing member 700 from interfering with other components when the battery tray is installed.
  • the fixing member 700 will not protrude from the bottom plate 200 and cause damage to power batteries installed in other layers.
  • the first connection part 210 is connected to the side of the support member 130 away from the connection section 121, and the second connection hole 500 passes through the connection section 121 sequentially.
  • the supporting member 130 and the connecting section 121 penetrate to the first plate body 110 .
  • the second connection hole 500 is set through the support member 130, which can improve the structural strength of the second connection hole 500, which is conducive to improving the connection stability between the mounting bracket 600 and the second connection hole 500, and the length of the required fixing member 700 is also shorter. Appropriate and will not cause too much increase in production costs.
  • the number relationship between the connecting section 121, the second connecting hole 500, and the first connecting part 210 is not one-to-one correspondence, but can be adjusted according to the actual situation.
  • the number of connecting sections 121 depends on the required
  • the number of coolant channels 101 and the number of second connecting holes 500 depend on the number of mounting brackets 600
  • the number of first connecting parts 210 depends on the width of the bottom plate 200 and the strength requirements for the battery tray.
  • the present application also proposes a battery bracket, which includes a mounting bracket 600 and a battery tray.
  • a battery tray which includes a mounting bracket 600 and a battery tray.
  • the mounting bracket 600 is installed on the side of the liquid cooling plate 100 away from the bottom plate 200, so that when the power battery is installed on the installation position constructed by the battery tray and the mounting bracket 600, the liquid cooling plate 100 can directly contact the power battery to cool the power battery.
  • the present application also proposes an automobile, which includes a battery bracket.
  • a battery bracket For the specific structure of the battery bracket, refer to the above-mentioned embodiment. Let me repeat them one by one.

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Abstract

一种液冷板（100）、电池托板、电池托架和汽车，其中，液冷板（100）包括层叠设置的第一板体（110）和第二板体（120），第一板体（110）和第二板体（120）之间形成有冷却液流道（101），冷却液流动于冷却液流道（101）内。液冷板（100）还包括支撑件（130），连接于第一板体（110）和/或第二板体（120）。

Description

液冷板、电池托板、电池托架和汽车 技术领域
本申请涉及汽车领域，特别涉及一种液冷板、电池托板、电池托架和汽车。
 背景技术
随着人们环保意识的提高，新能源汽车越来越受关注，其中，在纯电动汽车和混合动力电动汽车中，由于采用了电驱动的形式，内部需要配备动力电池以及安装动力电池的电池托架，电池托架的托板一般设置有液冷板，液冷板能吸收动力电池散发的热量，避免温度过高影响动力电池的性能。液冷板设置于动力电池的底部，直接接触于动力电池，然而，现有的液冷板的结构稳定性差，容易发生变形，不仅会引起液冷板的冷却能力下降，还会造成动力电池安装不稳定，进而影响动力电池的工作性能。
 技术问题
本申请的主要目的是提出一种液冷板，旨在提升液冷板的结构稳定性，以保障动力电池的工作性能。
 技术解决方案
为实现上述目的，本申请提出的液冷板，包括：
层叠设置的第一板体和第二板体；
冷却液流道，形成于所述第一板体和所述第二板体之间，冷却液流动于所述冷却液流道内；以及
支撑件，连接于第一板体和/或第二板体。
可选地，所述第一板体与所述第二板体相连接，所述支撑件设置于所述第二板体的背离所述第一板体的一侧。
可选地，所述第二板体具有相连接的连接段和间隔段，所述连接段较所述间隔段向所述第一板体凹陷设置，所述连接段连接于所述第一板体，所述间隔段与所述第一板体间隔设置，所述间隔段的两侧各连接有一所述连接段，所述冷却液流道形成于所述间隔段和所述第一板体之间。
可选地，所述第二板体设置有多段所述间隔段，以形成多个在所述间隔段的分布方向上间隔分布的所述冷却液流道。
可选地，所述支撑件连接于所述连接段的背离所述第一板体的一侧。
可选地，所述支撑件设置有多个，一所述连接段对应连接有一所述支撑件，且所述支撑件的延伸方向与所述冷却液流道的延伸方向相并行。
可选地，所述第一板体和所述第二板体之间通过钎焊的方式相连接。
可选地，所述第二板体和所述支撑件之间通过钎焊的方式相连接。
可选地，所述第一板体和所述第二板体设置为铝板。
可选地，所述第一板体和所述第二板体采用冲压工艺加工成型。
本申请还提出一种电池托板，包括前述的液冷板。
可选地，所述电池托板还包括填充层和底板，所述填充层连接于所述液冷板的一侧，所述底板连接于所述填充层的背离所述液冷板的一侧。
可选地，所述填充层的材质为发泡材质或蜂窝材质。
可选地，所述液冷板、所述填充层和所述底板通过模压或胶粘或焊接的方式连接于一体。
可选地，所述电池托板还包括连接件，所述连接件设置于所述液冷板的背离所述底板的一侧，并设置为与安装支架相连接。
可选地，所述连接件设置有第一连接孔，所述安装支架通过固定件连接于所述第一连接孔。
可选地，所述电池托板还设置有自所述底板向所述液冷板贯穿的第二连接孔，安装支架通过固定件连接于所述第二连接孔。
本申请还提出一种电池托架，包括前述的电池托板。
本申请还提出一种汽车，包括前述的电池托架。
 有益效果
本申请技术方案中，支撑件可以设置于第一板体和第二板体之间，两侧分别连接于第一板体和第二板体，支撑件还可以连接于第一板体的背离第二板体的一侧或第二板体的背离第一板体的一侧。前述三种方式，支撑件均能起到提升液冷板的结构稳定性的作用，在支撑件的支撑作用下，第一板体和第二板体不容易变形，内部的冷却液流道的结构稳定性也得到了保障，能够避免冷却液泄漏，从而保障了液冷板的冷却能力，并且，如此设置的液冷板能够供动力电池稳定安装，由此，动力电池能够稳定地装设于液冷板上，并接受液冷板稳定提供的冷却，有利于保障动力电池的工作性能。另外，不同于现有技术中的在板体内或板体外铺设液冷管，冷却液在液冷管中流动，本申请中，冷却液流道由第一板体和第二板体构造形成，当动力电池装设于液冷板上，动力电池与冷却液的换热面积大，有利于提升动力电池与冷却液之间的换热效率，以使动力电池的温度能够快速下降，从而保障动力电池的工作性能。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请电池托板一实施例的爆炸结构示意图；
图2为本申请液冷板一实施例的爆炸结构示意图；
图3为本申请电池托板一实施例的剖面结构正视图；
图4为图3中的电池托板另一视角下的剖面结构示意图；
图5为本申请电池托板另一实施例的剖面结构正视图；
图6为本申请电池托板又一实施例的剖面结构示意图；
图7为图6中的电池托板另一视角下的剖面结构示意图；
图8为本申请电池托板再一实施例的剖面结构示意图；
图9为图8中的电池托板另一视角下的剖面结构示意图。
附图标号说明：
标号 名称 标号 名称
100 液冷板 200 底板
101 冷却液流道 210 第一连接部
110 第一板体 220 第二连接部
120 第二板体 300 填充层
121 连接段 400 连接件
122 间隔段 410 第一连接孔
130 支撑件 500 第二连接孔
700 固定件 600 安装支架
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示（诸如上、下、左、右、前、后……），则该方向性指示仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，若全文中出现的“和/或”的含义为，包括三个并列的方案，以“A和/或B”为例，包括A方案，或B方案，或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提出一种液冷板100。
在本申请一实施例中，如图1至图5所示，该液冷板100包括层叠设置的第一板体110和第二板体120，所述第一板体110和所述第二板体120之间形成有冷却液流道101，冷却液流动于所述冷却液流道101内。所述液冷板100还设置有支撑件130，所述支撑件130连接于第一板体110和第二板体120中的至少一者。也即，如图5所示，支撑件130可以设置于第一板体110和第二板体120之间，两侧分别连接于第一板体110和第二板体120，支撑件130还可以连接于第一板体110的背离第二板体120的一侧，或者，如图3和图4所示，支撑件130连接于第二板体120的背离第一板体110的一侧。
以上三种方式，支撑件130均能起到提升液冷板100的结构稳定性的作用，在支撑件130的支撑作用下，第一板体110和第二板体120不容易变形，内部的冷却液流道101的结构稳定性也得到了保障，能够避免冷却液泄漏，从而保障了液冷板100的冷却能力，并且，如此设置的液冷板100能够供动力电池稳定安装，由此，动力电池能够稳定地装设于液冷板100上，并接受液冷板100稳定提供的冷却，有利于保障动力电池的工作性能。另外，不同于现有技术中的在板体内或板体外铺设液冷管，冷却液在液冷管中流动，本申请中，冷却液流道101由第一板体110和第二板体120构造形成，当动力电池装设于液冷板100上，动力电池与冷却液的换热面积大，有利于提升动力电池与冷却液之间的换热效率，以使动力电池的温度能够快速下降，从而保障动力电池的工作性能。
请参照图3和图4，不失一般性，在本实施例中，所述第一板体110与所述第二板体120相连接，所述支撑件130设置于所述第二板体120的背离所述第一板体110的一侧。本实施例中，支撑件130设置于第二板体120的外侧，而冷却液流道101形成于第一板体110和第二板体120之间，如此，支撑件130的设置和冷却液流道101的设置可以互不干扰，有利于液冷板100的加工、装配。可选地，支撑件130采用铝合金制成，铝的密度小，使得支撑件130在具备足够的结构强度的同时，还具备质量轻的特点，不会给液冷板100增加过多的重量。当然，在其他实施例中，也可以是，第一板体110和第二板体120之间设置有多个间隔排布的支撑件130，每两相邻的支撑件130之间即形成有一冷却液流道101。
进一步地，在本实施例中，所述第二板体120具有相连接的连接段121和间隔段122，所述连接段121较所述间隔段122向所述第一板体110凹陷设置，所述连接段121连接于所述第一板体110，所述间隔段122与所述第一板体110间隔设置，所述间隔段122的两侧各连接有一所述连接段121，所述冷却液流道101形成于所述间隔段122和所述第一板体110之间。本实施例中，第二板体120在冷却液流道101处的横截面呈波浪状，而能具有连接于第一板体110的连接段121，以及于第一板体110间隔设置的间隔段122，连接段121分布于间隔段122的两侧，以使得间隔段122和第二板体120之间能够形成供冷却液流动的通道，也即冷却液流道101。如此，第一板体110或间隔段122与动力电池相接触，均能确保液冷板100与动力电池具有足够的换热面积，以保障动力电池与冷却液之间的换热效率，避免动力电池工作产生的热量积聚，而影响动力电池的工作性能。当然，在其他实施例中，也可以是，第一板体110和第二板体120中的至少一者间隔设置有多根条状筋，在第一板体110和第二板体120连接后，每两相邻的条状筋之间即形成有一冷却液流道101。
进一步地，在本实施例中，所述第二板体120设置有多段所述间隔段122，以形成多个在所述间隔段122的分布方向上间隔分布的所述冷却液流道101。本实施例中，多个冷却液流道101中均有冷却液流动，能够有利于冷却液跟动力电池充分换热，以保障动力电池的工作性能。
可以理解，间隔段122的延伸方向与其分布方向呈角度设置，可以是呈直角设置或近似呈直角设置，亦或者，呈其他角度设置，而连接段121的延伸方向并行（平行或近似平行）于间隔段122的延伸方向。可选地，相邻的冷却液流道101互不连通，每一间隔段122的两端分别设置有冷却液进口和冷却液出口，冷却液一一自每一冷却液流道101的冷却液进口流入，与动力电池进行换热后，再一一自每一冷却液流道101的冷却液出口流出，其中，多个冷却液流道101的同一端可以交替设置冷却液出口和冷却液入口，以提升冷却液与动力电池的换热均匀性，从而使得动力电池表面温度分布均匀。可选地，可在连接段121的端部开设连通口，相邻的两冷却液流道101即可通过该连通口连通，其中，如图2所示，可选择在相邻的连接段121的不同端开设连通口，以使各冷却液流道101呈S型连通，此时，可在相对两侧的冷却液流道101各设置一冷却液进口，在中部的冷却液流道101设置冷却液出口，如此，同样能够提升冷却液与动力电池的换热均匀性，从而使得动力电池表面温度分布均匀；也可选择在连接段121的中间位置开设连通口，不同的连接段121的连通口错开设置，以增加冷却液在冷却液流道101中的流动路程，从而确保冷却液能够与动力电池充分换热。
进一步地，在本实施例中，所述支撑件130连接于所述连接段121的背离所述第一板体110的一侧。如此，能够充分利用连接段121的凹陷位，使得液冷板100不至于过厚，以节约液冷板100的安装空间。而且，连接段121与第一板体110相连接的位置很薄，结构强度比较差，支撑件130与连接段121相连接，能够有效增加这个位置的结构强度，以避免液冷板100于连接段121处发生变形，而造成冷却液的外露，变形处甚至有可能刺破动力电池，引起电池短路等安全事故。
进一步地，在本实施例中，所述支撑件130设置有多个，一所述连接段121对应连接有一所述支撑件130，且所述支撑件130的延伸方向与所述冷却液流道101的延伸方向相并行。也即，支撑件130设置为条状，每一连接段121的凹陷位均填充有一支撑件130，以使每一连接段121都能受到支撑作用，从而提升连接段121处的结构强度。当然，在其他实施例中，也可以是，支撑件130设置为板状，且支撑件130设置有多个相对连接段121的支撑凸部，如此，也可对连接段121起到很好的支撑作用。
在一实施例中，所述第一板体110和所述第二板体120设置为铝板，并分别采用冲压工艺加工成型。第一板体110和第二板体120的材质为铝材质，不容易受到冷却液的腐蚀而生锈，而采用冲压工艺加工第一板体110和第二板体120，生产效率高，有利于保障液冷板100的生产效率。
进一步地，所述第一板体110和所述第二板体120之间通过钎焊的方式相连接，所述第二板体120和所述支撑件130之间通过钎焊的方式相连接。钎焊，是指低于焊件熔点的钎料和焊件同时加热到钎料熔化温度后，利用液态钎料填充固态工件的缝隙使金属连接的焊接方法。钎焊加热温度较低，接头光滑平整，组织和机械性能变化小，变形小，工件尺寸精确，有利于保障第一板体110和第二板体120之间的连接稳定性以及第二板体120的连接段121和支撑件130之间的连接稳定性。且钎焊设备简单，生产投资费用少，有利于节约液冷板100的生产成本。
本申请还提出一种电池托板，包括液冷板100，该液冷板100的具体结构参照上述实施例，由于本电池托板采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
在本申请的一实施例中，如图1所示，所述电池托板还包括填充层300和底板200，如图3至图9所示，所述填充层300连接于所述液冷板100的一侧，所述底板200连接于所述填充层300的背离所述液冷板100的一侧。底板200和液冷板100之间设置有填充层300，以增强电池托板的结构稳定性。具体而言，填充层300连接于液冷板100的第二板体120的背离第一板体110的一侧，动力电池安装在第一板体110上。当然，在其他实施例中，也可以是，填充层300连接于第一板体110的背离第二板体120的一侧，动力电池则安装第二板体120，与支撑件130以及第二板体120的间隔段122接触。
进一步地，在本实施例中，所述填充层300的材质为发泡材质或蜂窝材质。可以理解，蜂窝材料和发泡材料均具有减震、隔音、保温、阻燃和比强度高等优良性能，填充层300的材质设置为发泡材质或蜂窝材质，能够提升电池托板的耐冲击性，以保护动力电池，同时，还能提升电池托板的保温性能，以在寒冷天气或其他特定工况下，避免动力电池跟外界过度换热，造成温度过低，而影响动力电池的工作性能。可选地，填充层300的材质可以是发泡铝材质或蜂窝铝材质或发泡塑料材质或蜂窝塑料（如聚丙烯蜂窝）材质。这些材料都具备发泡材料或蜂窝材料的优良性能，有利于保障动力电池的工作性能。当然，在其他实施例中，填充层300的材质还可以是陶瓷蜂窝材质或其他金属蜂窝材质或发泡陶瓷材质等。
进一步地，在本实施例中，所述底板200为碳纤维板或金属板。如此，底板200能够具备足够的强度，而能抵御外界环境的冲击，避免外物刺破底板200，以对动力电池起到保护作用。其中，当底板200设置为金属板时，可选用钢、铝合金、钛合金等金属材料。当然，在其他实施例中，底板200还可以采用其他布状或者笼状高强度复合材料，如玻璃纤维。
进一步地，在本实施例中，所述液冷板100、所述填充层300和所述底板200通过模压或胶粘或焊接的方式连接于一体。具体而言，当液冷板100、填充层300和底板200通过模压的方式连接于一体，模压成型后，填充层300的两侧将通过热固性树脂分别紧固连接于底板200以及液冷板100；当液冷板100、填充层300和底板200通过胶粘的方式连接于一体，加工成型后，填充层300的两侧将通过结构胶分别紧固连接于底板200以及液冷板100；当液冷板100、填充层300和底板200通过焊接的方式连接于一体，若焊接的具体方式为钎焊，加工成型后，填充层300的两侧将通过钎料分别紧固连接于底板200以及液冷板100，若焊接的具体方式为压焊或熔焊，则填充层300的两侧分别与底板200以及液冷板100渗透连接。通过采用上述几种方式，电池托板的各层能够复合于一体，电池托板整体的刚性和强度均能得到很大提升，整体模态和振动耐久性能也随之得到提升，而能很好地承载动力电池的重量，以供动力电池稳定安装。
请一并参照图6和图7，在一实施例中，所述电池托板还包括连接件400，所述连接件400设置于所述液冷板100的背离所述底板200的一侧，并设置为与安装支架600相连接。具体地，连接件400设置于第一板体110的背离第二板体120的一侧，安装支架600与连接件400相连接，即可与电池托板相固定，安装支架600和电池托板配合，构造出用于供动力电池的安装位，如此，动力电池安装后，不会在液冷板100上过度移动。本实施例中，电池托板通过连接件400与安装支架600相固定，能够提升安装支架600的安装便利性以及稳固性。可选地，连接件400可采用铝合金制成，通过钎焊的方式固定于第一板体110。特别地，当连接件400设置于第一板体110与连接段121相连接的位置，在连接件400或安装支架600受力时，因连接段121的另一侧连接有支撑件130，由于支撑件130的支撑作用，液冷板100与连接件400相连接的位置不容易变形，有利于保障电池托板的结构稳定性。
进一步地，在本实施例中，所述连接件400设置有第一连接孔410，所述安装支架600通过固定件700连接于所述第一连接孔410。其中，固定件700可以是螺钉或螺栓或铆钉等。如此，可以实现安装支架600与连接件400的可拆卸连接，也能够保障安装支架600与电池托板连接的便利性以及稳固性。当然，在其他实施例中，连接件400也可以是通过焊接或卡扣配合的方式与安装支架600相连接。
请一并参照图3、图4、图8和图9，在一实施例中，所述电池托板还设置有自所述底板200向所述液冷板100贯穿的第二连接孔500，安装支架600通过固定件700连接于所述第二连接孔500。如此，也可实现安装支架600与电池托板的可拆卸连接，并保障安装支架600与电池托板连接的便利性以及稳固性。当然，在其他实施例中，第一板体110也可以通过焊接或卡扣配合的方式连接于安装支架600。
其中，如图3和图4所示，连接件400可以设置在电池托板的中部，而选择在电池托板的侧部开设第二连接孔500，如此，可以避免电池托板的中部开孔而影响电池托板的结构强度，而在电池托板的侧部直接开设第二连接孔500，就不必另外再设连接件400，能简化电池托板的结构，有利于降低电池托板的生产成本。当然，在其他实施例中，也可以是，如图8和图9所示，第二连接孔500设置于电池托板的中部，以供安装支架600通过固定件700连接。
进一步地，在本实施例中，所述底板200具有相连接的第一连接部210和第二连接部220，所述第一连接部210较所述第二连接部220向所述液冷板100凹陷设置，所述第一连接部210连接于所述液冷板100，所述第二连接部220连接于所述填充层300的背离所述液冷板100的一侧，所述第二连接孔500自所述第一连接部210向所述液冷板100贯穿设置。如此，第二连接孔500不必贯穿填充层300，第二连接孔500的孔深能够有效减小，所需的固定件700的长度也随之减小，不仅能够减小生产成本，还能够提升安装支架600和电池托板的连接稳定性。而且，第一连接部210的凹陷处可以供固定件700的端部容置，能够避免固定件700凸出于底板200，从而在电池托板安装时，能够避免固定件700与其他部件发生干涉，另外，在设置有多层电池托板供动力电池安装时，固定件700不会凸出于底板200，而对其他层安装的动力电池造成破坏。
进一步地，在本实施例中，所述第一连接部210连接于所述支撑件130的背离所述连接段121的一侧，所述第二连接孔500自所述连接段121依次经所述支撑件130和所述连接段121贯穿至所述第一板体110。第二连接孔500贯穿支撑件130设置，能够提升第二连接孔500的结构强度，有利于提升安装支架600与第二连接孔500的连接稳定性，且所需的固定件700的长度也较适宜，不会引起太多生产成本的上升。
需要说明的是，连接段121、第二连接孔500、第一连接部210这三者之间的数目关系并非一一对应，而是可以根据实际情况调整，连接段121的数目取决于所需冷却液流道101的数目，第二连接孔500的数目取决于安装支架600的数目，第一连接部210的数目取决于底板200的宽度以及对电池托板的强度要求。
本申请还提出一种电池托架，该电池托架包括安装支架600和电池托板，该电池托板的具体结构参照上述实施例，由于本电池托板采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。其中，安装支架600安装于液冷板100的背离底板200的一侧，如此，当动力电池安装于电池托板和安装支架600所构造出的安装位时，液冷板100能够直接接触于动力电池，以对动力电池进行冷却。
本申请还提出一种汽车，该汽车包括电池托架，该电池托架的具体结构参照上述实施例，因此，本汽车至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
以上所述仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是在本申请的发明构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (17)

  1. 一种液冷板，其中，包括：
    层叠设置的第一板体和第二板体；
    冷却液流道，形成于所述第一板体和所述第二板体之间，冷却液流动于所述冷却液流道内；以及
    支撑件，连接于第一板体和/或第二板体。
  2. 如权利要求1所述的液冷板，其中，所述第一板体与所述第二板体相连接，所述支撑件设置于所述第二板体的背离所述第一板体的一侧。
  3. 如权利要求2所述的液冷板，其中，所述第二板体具有相连接的连接段和间隔段，所述连接段较所述间隔段向所述第一板体凹陷设置，所述连接段连接于所述第一板体，所述间隔段与所述第一板体间隔设置，所述间隔段的两侧各连接有一所述连接段，所述冷却液流道形成于所述间隔段和所述第一板体之间。
  4. 如权利要求3所述的液冷板，其中，所述第二板体设置有多段所述间隔段，以形成多个在所述间隔段的分布方向上间隔分布的所述冷却液流道。
  5. 如权利要求3所述的液冷板，其中，所述支撑件连接于所述连接段的背离所述第一板体的一侧。
  6. 如权利要求5所述的液冷板，其中，所述支撑件设置有多个，一所述连接段对应连接有一所述支撑件，且所述支撑件的延伸方向与所述冷却液流道的延伸方向相并行。
  7. 如权利要求2所述的液冷板，其中，所述第一板体和所述第二板体之间通过钎焊的方式相连接；
    和/或，所述第二板体和所述支撑件之间通过钎焊的方式相连接。
  8. 如权利要求1至7任一项所述的液冷板，其中，所述第一板体和所述第二板体设置为铝板；
    和/或，所述第一板体和所述第二板体采用冲压工艺加工成型。
  9. 一种电池托板，其中，包括权利要求1至8任一项所述的液冷板。
  10. 如权利要求9所述的电池托板，其中，所述电池托板还包括填充层和底板，所述填充层连接于所述液冷板的一侧，所述底板连接于所述填充层的背离所述液冷板的一侧。
  11. 如权利要求10所述的电池托板，其中，所述填充层的材质为发泡材质或蜂窝材质。
  12. 如权利要求11所述的电池托板，其中，所述液冷板、所述填充层和所述底板通过模压或胶粘或焊接的方式连接于一体。
  13. 如权利要求10所述的电池托板，其中，所述电池托板还包括连接件，所述连接件设置于所述液冷板的背离所述底板的一侧，并设置为与安装支架相连接。
  14. 如权利要求13所述的电池托板，其中，所述连接件设置有第一连接孔，所述安装支架通过固定件连接于所述第一连接孔。
  15. 如权利要求10所述的电池托板，其中，所述电池托板还设置有自所述底板向所述液冷板贯穿的第二连接孔，安装支架通过固定件连接于所述第二连接孔。
  16. 一种电池托架，其中，包括权利要求9至15任一项所述的电池托板。
  17. 一种汽车，其中，包括权利要求16所述的电池托架。
PCT/CN2022/078815 2022-03-02 2022-03-02 液冷板、电池托板、电池托架和汽车 WO2023164833A1 (zh)

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