WO2023280284A1 - Ensemble batterie d'alimentation et véhicule - Google Patents

Ensemble batterie d'alimentation et véhicule Download PDF

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Publication number
WO2023280284A1
WO2023280284A1 PCT/CN2022/104452 CN2022104452W WO2023280284A1 WO 2023280284 A1 WO2023280284 A1 WO 2023280284A1 CN 2022104452 W CN2022104452 W CN 2022104452W WO 2023280284 A1 WO2023280284 A1 WO 2023280284A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
power battery
battery assembly
cooling
upper plate
Prior art date
Application number
PCT/CN2022/104452
Other languages
English (en)
Chinese (zh)
Inventor
王志强
张国炜
汪志超
刘安龙
韩海滨
徐鹏
林艺垚
Original Assignee
广州小鹏汽车科技有限公司
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 广州小鹏汽车科技有限公司 filed Critical 广州小鹏汽车科技有限公司
Publication of WO2023280284A1 publication Critical patent/WO2023280284A1/fr

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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
    • 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
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—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
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • This application relates to the field of new energy vehicles, in particular to a power battery assembly and a vehicle.
  • the embodiment of the present application provides a power battery assembly, which realizes that when the power battery assembly fails, It only needs to replace a battery module in the power battery assembly to reduce maintenance costs.
  • the power battery assembly provided in the embodiment of the present application includes a plurality of battery modules arranged side by side, each of the battery modules includes a battery cell and a cooling device, the cooling device includes a cooling plate, and the cooling plate includes an upper A plate and a lower plate, the upper plate is covered on the lower plate, the upper plate and the lower plate together form a cooling channel, and the electric core is arranged on the upper plate.
  • the cooling channel includes a plurality of parallel sub-channels.
  • the lower plate includes a plurality of connected grooves, and the upper plate covers the grooves to form the cooling channel.
  • the lower plate includes an outlet and an inlet, the number of the outlet and the inlet is at least two, the inlet corresponds to the outlet one by one, and the outlet and the inlet are spaced apart Set on the lower plate, the outlet and the inlet communicate with the groove.
  • the cooling device includes a first water pipe joint and a second water pipe joint arranged at intervals, the first water pipe joint penetrates the upper plate and communicates with the inlet, and the second water pipe joint The joint passes through the upper plate and communicates with the outlet.
  • the battery module includes an end plate and a side plate connected to the end plate, the end plate and the side plate surround the battery core, the end plate and the side plate To be connected with the cooling device, the water pipe joint is passed through the end plate.
  • the upper plate and/or the lower plate are formed with joint ears, and the cooling plate is fixedly connected to the end plate through the joint ears.
  • the upper plate and/or the lower plate include a body, the joint ear portion is connected to an edge of the body, and a depression is formed at the joint between the joint ear portion and the body.
  • the glue-limiting frame is fixed between the battery core and the upper plate, and the glue-limiting frame surrounds the glue.
  • An embodiment of the present application provides a vehicle, the vehicle includes a vehicle body and the power battery assembly of any of the above-mentioned embodiments, and the power battery assembly is installed on the vehicle body.
  • a power battery assembly is formed by assembling a plurality of battery modules.
  • the battery module can be directly replaced to reduce maintenance costs.
  • the cooling device in the power battery assembly can cool a single battery cell, so that each cooling device in the power battery assembly does not interfere with each other, and the cooling efficiency of the power battery assembly is improved.
  • Fig. 1 is a schematic plan view of a power battery assembly according to an embodiment of the present application
  • FIG. 2 is a partial schematic diagram of a battery module according to an embodiment of the present application.
  • Fig. 3 is a partial structural schematic diagram of a power battery assembly according to an embodiment of the present application.
  • Fig. 4 is another schematic diagram of the partial structure of the power battery assembly according to the embodiment of the present application.
  • Fig. 5 is a schematic structural view of the lower plate of the embodiment of the present application.
  • Fig. 6 is a partial schematic diagram of the lower plate of the embodiment of the present application.
  • FIG. 7 is a schematic plan view of a vehicle according to an embodiment of the present application.
  • Power battery assembly 100 battery module 10, battery cell 11, cooling device 12, cooling plate 120, upper plate 121, through hole 1211, lower plate 122, groove 1221, cooling channel 123, sub-channel 1231, inlet 124, outlet 125, first water pipe joint 126, second water pipe joint 127, joint ear 128, depression 1281, body 129, end plate 131, side plate 132, glue 14, glue limit frame 30, reinforcing rib 31, vehicle 200, body 40.
  • the embodiment of the present application provides a power battery assembly 100
  • the power battery assembly 100 includes a plurality of battery modules 10 arranged side by side, each battery module 10 includes a battery cell 11 and a cooling
  • the cooling device 12 includes a cooling plate 120
  • the cooling plate 120 includes an upper plate 121 and a lower plate 122
  • the upper plate 121 is covered on the lower plate 122
  • the upper plate 121 and the lower plate 122 together form a cooling channel 123
  • the battery cell 11 set on the upper plate 121 is
  • the power battery assembly 100 is formed by assembling a plurality of battery modules 10 .
  • the battery module 10 can be directly replaced to reduce maintenance costs.
  • the cooling device 12 in the power battery assembly 100 can cool a single cell 11 , so that the cooling devices 12 in the power battery assembly 100 do not interfere with each other, and the cooling efficiency of the power battery assembly 100 is improved.
  • the battery cell 11 may be a lead-acid storage battery, a nickel-hydrogen storage battery or a lithium battery or the like.
  • the batteries 11 mostly use lithium batteries, because lithium batteries have the advantages of light weight, many charge and discharge cycles, high temperature applicability, and environmental protection.
  • the battery cell 11 may be in the shape of a cuboid or a cylinder, and the shape of the battery cell 11 is not limited here.
  • the battery cell 11 can be fixedly installed on the side of the upper board 121 away from the lower board 122 .
  • the battery cell 11 After working for a period of time, the battery cell 11 will become hot and hot. Long-term and high temperature heating will lead to a decrease in the charging efficiency of the battery cell 11, a decrease in battery capacity, and a shortened service life. Therefore, it is necessary to use a cooling device 12 to The battery cell 11 dissipates heat.
  • the battery cell 11 and the cooling plate 120 are attached together, and the cooling plate 120 is filled with a cooling medium. When the battery cell 11 needs to dissipate heat, the battery cell 11 can exchange heat with the cooling medium through the cooling plate 120 to cool the battery cell 11. Purpose.
  • the upper plate 121 and the lower plate 122 of the cooling plate 120 are made of the same material, which can be a metal material or a non-metallic material with good thermal conductivity, and the specific material is not limited.
  • the upper plate 121 and the lower plate 122 may be formed by stamping.
  • the upper plate 121 and the lower plate 122 can be made of aluminum, which can reduce the weight of the cooling plate 120.
  • the boundaries of the upper plate 121 and the lower plate 122 are the same so that they can be fixedly connected by welding to ensure that when the cooling medium is injected into the cooling channel 123, the cooling medium will not leak, thereby ensuring the heat dissipation effect of the cooling device 12.
  • the upper plate 121 and the lower plate 122 can be rectangular, circular, or other irregular shapes, and the shapes of the upper plate 121 and the lower plate 122 are not limited here.
  • the upper plate 121 and the lower plate 122 are rectangular, which facilitates the assembly of multiple battery modules 10 and makes the structure of the power battery assembly 100 more compact.
  • the embodiment of the present application consists of many
  • the size of the cooling plate 120 of the power battery assembly 100 assembled with each battery module 10 is smaller, so that the development cycle of the cooling plate 120 can be reduced, thereby reducing the production cost. Since the size of the cooling plate 120 is relatively small, it can ensure the flatness of the cooling plate 120 during the processing, so that the bonding effect between the cooling plate 120 and the electric core 11 is better, so that the cooling plate 120 has a better effect on the electric core 11. The cooling effect is better.
  • the cooling channel 123 includes a plurality of parallel sub-channels 1231 .
  • the plurality of sub-channels 1231 in parallel can improve the cooling utilization rate of the cooling medium, increase the contact area between the sub-channels 1231 and the cooling medium in a limited space, and further increase heat dissipation efficiency.
  • each sub-channel 1231 can be in a U-shaped curved shape, and multiple sub-channels 1231 connected in parallel can also reduce the temperature difference between the cells 11 .
  • the interaction between adjacent sub-runners 1231 can be accelerated to improve heat dissipation efficiency. For example, when some of the sub-channels 1231 are blocked or dried up, the cooling medium will flow to the remaining connected sub-channels 1231 , which greatly improves the heat dissipation performance of the cooling plate 120 .
  • the lower plate 122 includes a plurality of connected grooves 1221 , and the upper plate 121 covers the grooves 1221 to form the cooling channel 123 .
  • the upper plate 121 and the groove 1221 can jointly form a hollow cooling channel 123 so that the cooling medium can circulate therein, thereby taking away the heat of the battery cell 11 to achieve the purpose of heat dissipation .
  • the upper plate 121 is used as a cover plate to cover the lower plate 122, and the groove 1221 on the lower plate 122 can be formed by stamping.
  • the cooling channel 123 is used for the circulation of the cooling medium, so that the flowing cooling medium can take away part of the heat of the electric core 11 .
  • the cooling medium may be a liquid medium or a gas medium, which is not limited in this embodiment of the present application.
  • the cooling medium may be water.
  • the lower plate 122 includes an inlet 124 and an outlet 125, the number of the outlet 125 and the inlet 124 is at least two, the inlet 124 corresponds to the outlet 125, and the outlet 125 and the inlet 124 are separated.
  • the outlet 125 and the inlet 124 communicate with the groove 1221 . In this way, the configuration of the inlet 124 and the outlet 125 facilitates the injection and outflow of the cooling medium, so as to flow in the groove 1221 to dissipate heat from the battery cell 11 .
  • the cooling medium enters the groove 1221 through the inlet 124 , the cooling medium flows in the groove 1221 to dissipate heat from the battery cell 11 , and finally the cooling medium flows out from the outlet 125 .
  • the outlet 125 and the inlet 124 may be symmetrical along the geometric central axis of the lower plate 122 and arranged at intervals on the same side.
  • the number of outlets 125 and inlets 124 can be increased according to heat dissipation requirements, and the same group of inlets 124 and outlets 125 are all arranged on the same side.
  • the outlet 125 and the inlet 124 may also be disposed on different sides of the lower plate 122 . With the increase of the number of inlets 124 and outlets 125 , the flow speed of the cooling medium in the groove 1221 is faster, so that the cooling device 12 can dissipate heat from the battery cell 11 faster.
  • the cooling device 12 includes a first water pipe joint 126 and a second water pipe joint 127 arranged at intervals, the first water pipe joint 126 passes through the upper plate 121 and communicates with the inlet 124 , the second water pipe joint 127 passes through the upper plate 121 and communicates with the outlet 125 .
  • the cooling medium can be injected into the cooling channel 123 of the cooling plate 120 through the first water pipe joint 126 to dissipate heat from the battery cell 11, and the heated cooling medium can flow out from the second water pipe joint 127, thereby completing the cooling of the battery cell 11. Heat dissipation.
  • a through hole 1211 can be provided on the upper plate 121, so that the first water pipe joint 126 and the second water pipe joint 127 can be communicated with the inlet 124 and the outlet 125 on the lower plate 122 through the through hole 1211, thereby facilitating the flow from the outside to the water pipe.
  • a cooling medium is passed into the cooling device 12 and the cooling medium flows out to the outside.
  • the first water pipe joint 126 and the second water pipe joint 127 can be made of zinc alloy, can also be made of stainless steel, and can also be made of plastic material. Limit.
  • the first water pipe joint 126 and the second water pipe joint 127 are nylon plastic water pipe joints, so that the weight can be reduced and the lightweight design of the power battery assembly 100 can be realized.
  • the nylon plastic water pipe joint has good shape and is convenient layout. It can be understood that when the number of inlets 124 and outlets 125 on the lower plate 122 increases, the number of through holes 1211, first water pipe joints 126 and second water pipe joints 127 also increases correspondingly, and it is necessary to ensure that each inlet 124 and outlet 125 Correspondingly communicate with the first water pipe joint 126 and the second water pipe joint 127 respectively.
  • the battery module 10 includes an end plate 131 and a side plate 132 , and the side plate 132 is connected to the end plate 131 .
  • the end plate 131 and the side plate 132 surround the battery cell 11 , and the end plate 131 and the side plate 132 are connected to the cooling device 12 , and the first water pipe joint 126 and the second water pipe joint 127 pass through the end plate 131 .
  • the end plate 131 and the side plate 132 can be arranged around the battery cell 11 to protect the battery cell 11, and at the same time, the first water pipe joint 126 and the second water pipe joint 127 can be penetrated in the end plate 131 to avoid damage caused by external forces. Collision damage.
  • the end plate 131 and the side plate 132 can be made of aluminum, and the end plate 131 and the side plate 132 can be fixed together by welding, or can be integrally formed.
  • the end plate 131 and the side plate 132 can be rectangular plates or other shapes.
  • the end plate 131 , the side plate 132 and the cooling device 12 can be fixed together by welding, or can be fastened by screwing.
  • the cooling plate 120 is fixed on the end plate 131 and the side plate 132
  • the battery cells 11 are fixed on the end plate 131 and the side plate 132 and connected to the cooling plate 120 , thereby forming a battery module 10 .
  • the end plate 131 and the side plate 132 can serve as the frame of the battery module 10 .
  • the first water pipe joint 126 and the second water pipe joint 127 can be designed independently of the end plate, that is to say, after the end plate 131 and the side plate 132 are connected to the cooling device 12, the first water pipe joint 126
  • the second water pipe joint 127 is inserted into the through hole 1211 of the end plate 131 and the upper plate 121 , and communicates with the inlet 124 and the outlet 125 of the lower plate 122 .
  • first water pipe joint 126 and the second water pipe joint 127 can be fixedly disposed in the end plate 131 , so that the loss of the first water pipe joint 126 and the second water pipe joint 127 can be avoided.
  • the installation method of the end plate 131 and the cooling device 12 is to first insert the first water pipe joint 126 and the second water pipe joint 127 into the through hole 1211 of the upper plate 121, and then tighten the end plate 131 and the cooling device 12. Fixed connection.
  • the upper plate 121 and/or the lower plate 122 are formed with joint ears 128 , and the cooling plate 120 is fixedly connected to the end plate 131 through the joint ears 128 .
  • the joint ear portion 128 of the cooling plate 120 can be fixedly connected to the end plate 131 by self-piercing riveting technology.
  • the upper plate 121 may be formed with joint ears 128
  • only the lower plate 122 may be formed with joint ears 128
  • both the upper plate 121 and the lower plate 122 may have joint ears 128 .
  • the number of the joint ears 128 may be multiple, and the multiple joint ears 128 are arranged at intervals along the circumferential direction of the upper plate 121 and/or the lower plate 122 .
  • Self-piercing Riveting is a cold connection technology used to connect two or more plates. After the special rivet penetrates the top sheet, under the action of the riveting die, the hollow structure at the tail of the rivet expands and penetrates without piercing the bottom sheet, thus forming a firm riveting point.
  • a driving device such as a hydraulic cylinder or a servo motor can be used to provide power to directly press the rivet into the joint ear 128 and the end plate 131, and the joint ear 128 and the end plate 131 will be formed together with the rivet under the pressure of the rivet.
  • the strength of the riveting point of this connection method is high, the two are not easy to separate, and there is no need to open holes in advance, and it can also protect the coating layer of the cooling plate 120 and the end plate 131 . In addition, no dust, sparks or scraps are generated during the riveting process.
  • the upper board 121 and/or the lower board 122 includes a body 129 , the joint ear 128 is connected to the edge of the body 129 , and the joint ear 128 is connected to the body 129 A recess 1281 is formed at the joint.
  • the recess 1281 can absorb the stress generated when the upper plate 121 and/or the lower plate 122 are riveted with the end plate 131 , reducing the possibility of the cooling plate 120 being damaged due to excessive force after riveting.
  • a driving device is required to provide power to directly press the rivet into the joint ear 128 and the end plate 131, and the rivet is pressed into the joint ear 128.
  • the stress may cause the cooling plate 120 to be damaged due to excessive force, so the recess 1281 provided at the junction of the joint ear 128 and the body 129 can absorb the stress and prevent the cooling plate 120 from breaking, wherein the recess 1281 is away from the end plate 131 creates a depression downwards.
  • the battery cell 11 is bonded on the upper plate 121 by glue 14 .
  • the battery cell 11 can be firmly connected with the upper plate 121 and not easy to fall off, thereby ensuring the cooling effect of the cooling plate 120 on the battery cell 11 .
  • the adhesive connection method is easy to operate, and the selection of high-viscosity glue 14 can make the connection between the battery core 11 and the cooling plate 120 more firm.
  • the glue 14 can be bonded with a thermally conductive structural adhesive.
  • the structural bonding strength of the thermally conductive structural adhesive can replace the connection method of fasteners to reduce the mass of the power battery assembly 100 and also has an insulating effect.
  • the surface of the upper plate 121 is smooth and flat, so as to be bonded to the battery cell 11 .
  • the power battery assembly 100 includes a glue-limiting frame 30 , the glue-limiting frame 30 is fixed between the battery cell 11 and the upper plate 121 , and the glue-limiting frame 30 surrounds the glue 14 .
  • the glue limiting frame 30 can prevent the overflow of the glue 14 from affecting the performance and appearance of the battery module 10 .
  • the glue limiting frame 30 may be made of acrylic material, or aluminum material.
  • the glue limiting frame 30 and the cooling plate 120 can be fixedly connected by brazing.
  • the boundary of the glue limiting frame 30 is the same as that of the upper plate 121.
  • the glue limiting frame 30 is a hollow structure.
  • a reinforcing rib 31 is arranged inside the glue limiting frame 30.
  • the glue limiting frame 30 can be roughly in the shape of a Japanese font.
  • the structural strength and load capacity of the rubber limiting frame 30 can be effectively increased by the ribs 31 .
  • the vehicle 200 includes a vehicle body 40 and a power battery assembly 100 in any of the above-mentioned embodiments.
  • the power battery assembly 100 is installed on the vehicle body 40 .
  • the vehicle 200 may be a hybrid vehicle or an electric vehicle, which is not specifically limited.
  • the power battery assembly 100 can supply power to the vehicle body 40 , and the cooling device 12 of the power battery assembly 100 can dissipate heat from the battery so as to improve the service life of the vehicle 200 .
  • the battery module 10 of the power battery assembly 100 fails, the battery module 10 can be directly replaced to reduce maintenance costs and improve user satisfaction.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • a first feature being "on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un ensemble batterie d'alimentation et un véhicule. L'ensemble batterie d'alimentation (100) comprend une pluralité de modules de batterie (10) disposés en parallèle. Chaque module de batterie (10) comprend un élément de batterie (11) et un dispositif de refroidissement (12). Le dispositif de refroidissement (12) comprend une plaque de refroidissement (120). La plaque de refroidissement (120) comprend une plaque supérieure (121) et une plaque inférieure (122). La plaque supérieure (121) recouvre la plaque inférieure (122), la plaque supérieure (121) et la plaque inférieure (122) forment conjointement un canal d'écoulement de refroidissement (123), et la cellule de batterie (11) est disposée sur la plaque supérieure (121).
PCT/CN2022/104452 2021-07-08 2022-07-07 Ensemble batterie d'alimentation et véhicule WO2023280284A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110771976.9A CN113471609A (zh) 2021-07-08 2021-07-08 动力电池总成和车辆
CN202110771976.9 2021-07-08

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WO2023280284A1 true WO2023280284A1 (fr) 2023-01-12

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PCT/CN2022/104452 WO2023280284A1 (fr) 2021-07-08 2022-07-07 Ensemble batterie d'alimentation et véhicule

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WO (1) WO2023280284A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113471609A (zh) * 2021-07-08 2021-10-01 广州小鹏汽车科技有限公司 动力电池总成和车辆

Citations (7)

* Cited by examiner, † Cited by third party
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