WO2023165377A1 - 箱体结构、电池及用电装置 - Google Patents

箱体结构、电池及用电装置 Download PDF

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Publication number
WO2023165377A1
WO2023165377A1 PCT/CN2023/077387 CN2023077387W WO2023165377A1 WO 2023165377 A1 WO2023165377 A1 WO 2023165377A1 CN 2023077387 W CN2023077387 W CN 2023077387W WO 2023165377 A1 WO2023165377 A1 WO 2023165377A1
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WO
WIPO (PCT)
Prior art keywords
box structure
wall
main pipe
battery
plate
Prior art date
Application number
PCT/CN2023/077387
Other languages
English (en)
French (fr)
Inventor
王勇
赵鹏博
王庆
王鹏
侯羽佳
陈兴地
Original Assignee
宁德时代新能源科技股份有限公司
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 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Publication of WO2023165377A1 publication Critical patent/WO2023165377A1/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
    • 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
    • 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
    • H01M50/242—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 against vibrations, collision impact or swelling
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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 power battery technology, in particular to a box structure, a battery and an electrical device.
  • the present application provides a box structure for accommodating a battery pack
  • the box structure includes: a cooling component and a frame.
  • the cooling component includes a main pipe and at least one branch pipe connected to the main pipe.
  • the main pipe is used to feed coolant into the branch pipe.
  • the branch pipe is used to contact the battery pack to cool the battery pack.
  • a receiving groove is provided at the bottom of the frame, at least part of the main pipe is located in the receiving groove, and the main pipe is glued and fixed to the receiving groove.
  • the main pipe is used to pass coolant into the branch pipe, and the branch pipe is in contact with the battery pack, so as to realize direct heat dissipation of the battery pack and improve the thermal conductivity of the box structure.
  • the channel is fixed in the storage tank by bonding, so there is no need to configure brackets and other structures between the cooling component and the frame, which simplifies the box structure on the premise of ensuring effective cooling, making it lighter in weight and lower in cost.
  • an accommodation groove is opened in the frame, so that the bonding area between the main pipe and the frame increases. In this way, it is beneficial to enhance the bonding strength between the cooling component and the frame, and ensure a more stable box structure.
  • the groove wall of the receiving groove includes a bottom wall, and a first side wall and a second side wall respectively connected to two ends of the bottom wall, and the side of the first side wall and the second side wall away from the bottom wall is formed with
  • the opening, the main pipe is glued and fixed to the receiving groove through the opening. In this way, it is convenient to glue and fix the main pipe in the receiving groove through the opening, which is beneficial to improve the assembly efficiency of the box structure.
  • the cross-sectional shape of the main pipe is rectangular, and the outer pipe wall of the main pipe is configured to be bonded to at least one of the bottom wall, the first side wall and the second side wall.
  • Such a design is beneficial to improving the bonding strength between the main pipe and the receiving tank, and improving the stability of the box structure.
  • At least one of the groove wall of the receiving groove and the outer pipe wall of the main pipe is provided with a glue storage tank, and the glue storage tank is used for storing the adhesive. In this way, the amount of glue remaining between the storage tank and the main pipe is increased, and a large amount of glue flow during bonding is avoided, resulting in insufficient bonding strength.
  • At least two limiting ribs are arranged at intervals on the groove wall of the accommodating groove, and a glue storage tank is formed between two adjacent limiting ribs.
  • two adjacent limiting ribs are used to form a glue storage tank, so that the glue can be stably stored between the two limiting ribs, and the bonding strength is improved; It is beneficial to strengthen the structural strength of the frame, so that the box structure remains stable.
  • the groove wall of the receiving groove and the outer pipe wall of the main pipe are bonded by structural glue, so as to meet the requirement of bonding strength between the two and improve the stability of the box structure.
  • the box structure further includes a bottom plate disposed on a side of the cooling component away from the frame, and the bottom plate is connected to the frame to support the cooling component.
  • a design is not only for the box structure Provide protection; and also stably support the cooling component, so that it is stably fixed on the frame, so that it can realize stable and effective heat dissipation for the battery pack.
  • the bottom plate includes a first plate body and a second plate body arranged in layers, the first plate body is located between the cooling member and the second plate body, and the first plate body is provided with a buffer structure.
  • the external impact force is weakened or the impact force is transmitted to the direction of the battery pack, so as to realize the shock absorption and buffering effect, avoid the direct damage of the cooling component and the battery pack by the bottom ball, and form a good bottom protection.
  • the first plate protrudes toward the side of the cooling member to form a buffer structure on the side of the first plate facing the second plate. In this way, on the premise of ensuring effective buffering, the manufacturing process of the buffering structure is simplified and the manufacturing efficiency is improved.
  • the first plate protrudes toward the side of the second plate to form a buffer structure on the side of the first plate facing the cooling component.
  • the manufacturing process of the buffering structure is simplified to improve the manufacturing efficiency.
  • the box structure further includes a protective plate, which is configured to cover the bottom plate from the side of the bottom plate away from the cooling component, and the protective plate is provided to provide effective protection for the bottom plate, preventing the cooling component and the battery pack from being vulnerable to external impacts and damaged.
  • the present application provides a battery, which includes a battery pack and any one of the above box structures.
  • the present application provides an electric device, including the above battery, and the battery is used to provide electric energy for the electric device.
  • FIG. 1 is a schematic structural view of a vehicle in some embodiments of the present application.
  • Fig. 2 is a schematic diagram of the box structure of some embodiments of the present application.
  • Fig. 3 is a schematic exploded view of the box structure of some embodiments of the present application.
  • Fig. 4 is a sectional view of a box structure of some embodiments of the present application.
  • Fig. 5 is the enlarged schematic view of the structure at circle A in Fig. 4;
  • FIG. 6 is an enlarged schematic view of the structure of the accommodation tank in some embodiments of the present application.
  • Fig. 7 is a second cross-sectional view of the box structure of some embodiments of the present application.
  • FIG. 8 is an enlarged schematic diagram of the structure at circle B in FIG. 7 .
  • 1000 battery; 2000, controller; 3000, motor; 100. Box structure; 110. Cooling component; 111. Main pipe; 112. Branch pipe; 120. Frame; 121. Accommodating tank; 122. Opening; 123. Glue storage tank; Side wall; 126, second side wall; 127, bottom wall; 130, bottom plate; 131, first plate body; 132, second plate body; 133, buffer structure; 140, protective plate; 150, seal; 200, glue.
  • multiple refers to more than two (including two), similarly, “multiple groups” refers to more than two groups (including two), and “multiple pieces” refers to More than two pieces (including two pieces).
  • orientation or positional relationship based on the drawings
  • the orientation or positional relationship is only for the convenience of describing the embodiment of the present application and simplifying the description, and does not indicate or imply that the referred device or element must have a specific Orientation, construction and operation in a particular orientation, and therefore should not be construed as limitations on the embodiments of the present application.
  • Power batteries are not only used in energy storage power systems such as hydraulic, thermal, wind and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric vehicles, as well as military equipment and aerospace and other fields . With the continuous expansion of power battery application fields, its market demand is also constantly expanding.
  • the battery generates a lot of heat during use. If the generated heat cannot be discharged in time, it will seriously affect the stability of the battery and shorten the service life of the battery. For this reason, a water-cooling structure is usually installed in the battery, and the heat accumulated in the battery is discharged by using the heat exchange function of the water-cooling structure.
  • the traditional water cooling structure is limited by its own structural defects, which leads to unsatisfactory heat dissipation of the battery.
  • a harmonica-type water cooling plate can be added outside the bottom plate of the battery to enhance the heat dissipation effect of the battery.
  • the existing harmonica-type water-cooled plate is usually fixed on the bottom plate of the battery by a bracket. When dissipating heat, the water-cooled plate conducts heat through structures such as the bottom plate and the bracket of the battery to exchange heat for the battery.
  • this installation method still cannot achieve effective heat dissipation and cooling of the battery; at the same time, it also increases the overall weight of the battery and increases the production cost.
  • the inventor designed a box after in-depth research
  • the structure is provided with a receiving groove on the bottom of the frame, at least part of the main pipe is located in the receiving groove, and the main pipe is fixed to the receiving groove by bonding.
  • the main pipe is used to pass coolant into the branch pipe, and the branch pipe is in contact with the battery pack to achieve direct heat dissipation to the battery pack and improve the thermal conductivity of the box structure.
  • the main pipeline is fixed in the holding tank by bonding, there is no need to arrange brackets and other structures between the cooling member and the frame, which simplifies the box structure on the premise of ensuring effective cooling, making it lighter in weight and lower in cost.
  • an accommodation groove is opened in the frame, so that the bonding area between the main pipe and the frame increases. In this way, it is beneficial to enhance the bonding strength between the cooling component and the frame, and ensure a more stable box structure.
  • the box structure disclosed in the embodiments of the present application can be used, but not limited, in electrical devices such as vehicles, ships, or aircrafts.
  • the power system composed of the battery disclosed in this application can be used to form the electrical device. In this way, the weight and cost of the battery can be reduced on the premise of ensuring effective cooling.
  • the embodiment of the present application provides an electric device using a battery as a power source.
  • the electric device can be, but not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, and the like.
  • electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric boat toys, electric airplane toys, etc.
  • spacecraft may include airplanes, rockets, space shuttles, spaceships, etc.
  • a vehicle is used as an example to describe an electric device according to an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a vehicle provided by some embodiments of the present application.
  • Vehicles can be fuel vehicles, gas vehicles or new energy vehicles, and new energy vehicles can be pure electric vehicles, hybrid vehicles or extended-range vehicles.
  • the interior of the vehicle is provided with a battery 1000, and the battery 1000 may be provided at the bottom, head or tail of the vehicle.
  • the battery 1000 can be used for power supply of the vehicle, for example, the battery 1000 It can be used as the operating power source of the vehicle.
  • the vehicle may further include a controller 2000 and a motor 3000.
  • the controller 2000 is used to control the battery 1000 to supply power to the motor 3000, for example, for starting, navigating and running the vehicle.
  • the battery 1000 can be used not only as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.
  • the battery 1000 includes a box structure 100 and battery cells, and the battery cells are housed in the box structure 100 .
  • the box structure 100 is used to provide accommodation space for the battery cells.
  • the box structure 100 may include a first part and a second part, the first part and the second part cover each other, and the first part and the second part jointly define an accommodation space for accommodating the battery cells.
  • the battery 1000 there may be multiple battery cells, and the multiple battery cells may be connected in series, in parallel or in parallel.
  • the mixed connection means that the multiple battery cells are connected in series and in parallel.
  • a plurality of battery cells can be directly connected in series or in parallel or mixed together, and then the whole body composed of a plurality of battery cells can be accommodated in the box; of course, the battery 1000 can also be a plurality of battery cells first connected in series or in parallel or
  • the battery 1000 modules are formed by series connection, and multiple battery 1000 modules are connected in series or in parallel or in series to form a whole, and are accommodated in the box structure 100 .
  • each battery cell can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but not limited thereto.
  • the battery cells can be in the form of cylinders, flat bodies, cuboids or other shapes.
  • the present application provides a box structure 100 for accommodating a battery pack.
  • the box structure 100 includes: a cooling member 110 and a frame 120 .
  • the cooling component 110 includes a main pipe 111 and at least one branch pipe 112 connected to the main pipe 111.
  • the main pipe 111 is used to feed coolant into the branch pipe 112.
  • the branch pipe 112 is used to contact the battery pack for Cool the battery pack.
  • the bottom of frame 120 is provided with accommodating groove 121, at least A part is located in the receiving groove 121 , and the main pipe 111 is adhesively fixed to the receiving groove 121 .
  • the battery pack can be a plurality of battery cells connected in series, parallel or mixed first, and then packaged into a battery 1000 module; it can also be a structure formed by only several battery cells connected in series, parallel or mixed.
  • the outer pipe wall of the branch pipe 112 can be directly pasted on the battery pack.
  • there are no other structures such as profiles between the battery pack and the cooling member 110.
  • a heat conduction substance such as heat conduction adhesive, can be applied on the bonding surface between the battery pack and the cooling member 110 .
  • thermally conductive adhesive refers to a one-component, thermally conductive, room-temperature-curing silicone adhesive sealant, which releases low molecules through the condensation reaction of moisture in the air to cause cross-linking and curing, and vulcanizes into high-performance elastomers. It is called thermal silica gel.
  • the cross-sectional shape of the receiving groove 121 can be designed as, but not limited to, square, circular, oval, pentagonal, and the like.
  • the cross-section of the main pipe 111 can also be designed in various ways, but if the cross-section of the main pipe 111 and the cross-section of the holding tank 121 maintain the same shape design, the bonding strength between the main pipe 111 and the holding tank 121 can be further strengthened .
  • the coolant may be liquid, gas, or the like. As for its specific type, this application does not make a limitation, as long as it can be passed into the main pipeline 111 to cool the battery pack.
  • the main pipeline 111 is fixed in the accommodation groove 121 by bonding, therefore, there is no need to arrange brackets and other structures between the cooling member 110 and the frame 120, thus simplifying the box structure 100 under the premise of ensuring effective cooling, making it lighter in weight, The cost is lower.
  • the frame 120 is provided with a receiving groove 121 , so that the bonding area between the main pipe 111 and the frame 120 is increased. In this way, it is beneficial to enhance the bonding strength between the cooling member 110 and the frame 120 and ensure the box structure 100 to be more stable.
  • the groove wall of the receiving groove 121 includes a bottom wall 127 , and a first side wall 125 and a second side wall 126 respectively connected to two ends of the bottom wall 127 .
  • An opening 122 is formed on a side of the first sidewall 125 and the second sidewall 126 away from the bottom wall 127 .
  • the main pipe 111 sticks through the opening 122 connected to the receiving groove 121.
  • the size of the opening 122 can be configured to be greater than or equal to the outer dimension of the main pipe 111 , so that the main pipe 111 can be easily bonded in the receiving groove 121 .
  • the size of the opening 122 can also be configured to be slightly smaller than the outer dimension of the main pipe 111.
  • the main pipe 111 needs to be pressed against the opening 122 to deform it so that the main pipe 111 is pressed into the receiving groove 121 .
  • it can limit the position of the main pipe 111 in the receiving groove 121 and prevent it from falling out of the receiving groove 121 .
  • surface treatment can be done on the bottom wall 127, the first side wall 125 and the second side wall 126 respectively, for example: on the bottom wall 127, the first side wall 125 and the second side wall 126
  • the two sidewalls 126 are sanded or embossed to increase the adhesion of the respective surfaces.
  • An opening 122 is designed on the side of the first side wall 125 and the second side wall 126 away from the bottom wall 127, so that the main pipe 111 can be bonded and fixed in the receiving groove 121 from the opening 122, which is conducive to improving the structure of the box body. 100% assembly efficiency.
  • the cross-sectional shape of the main pipe 111 is a rectangle.
  • the outer pipe wall of the main pipe 111 is configured to be bonded to at least one of the bottom wall 127 , the first side wall 125 and the second side wall 126 .
  • the outer pipe wall of the main pipe 111 can only be bonded with one of the bottom, the first side wall 125 and the second side wall 126; it can also be bonded with any two of the three; or, the main pipe 111
  • the outer pipe wall can be bonded to the bottom, the first side wall 125 and the second side wall 126 at the same time.
  • the cross section of the main pipeline 111 should be understood as a plane obtained by cutting the main pipeline 111 with a plane perpendicular to the axis of the main pipeline 111 .
  • the cross-sectional shape of the main pipe 111 is designed as a rectangle, so that the outer pipe wall of the main pipe 111 is more easily bonded to at least one of the bottom wall 127, the first side wall 125 and the second side wall 126, which is beneficial to improve the The adhesive strength of the latter improves the stability of the box structure 100 .
  • At least one of the two outer tube walls of the channel 111 is provided with a glue storage tank 123 .
  • the glue storage tank 123 is used for storing the adhesive.
  • the glue storage tank 123 can be arranged on the tank wall of the receiving tank 121, or on the outer tube wall of the main pipeline 111; of course, it can also be arranged on the tank wall of the receiving tank 121 and the outer tube wall of the main pipeline 111 at the same time .
  • the glue storage tank 123 can be a complete tank-like structure in the length direction of the frame 120, or can be a structure formed by a plurality of short tanks arranged at intervals. In the circumferential direction of the containing groove 121, the number of the glue storage groove 123 may be one or multiple. For example: at least one of the base, the first side wall 125 and the second side wall 126 is provided with a glue storage tank 123 .
  • a glue storage tank 123 is set up on at least one of the groove wall of the accommodation groove 121 and the outer pipe wall of the main pipe 111 to increase the amount of glue remaining between the accommodation groove 121 and the main pipe 111, and avoid the occurrence of glue failure during bonding. A large amount of glue flow leads to insufficient bonding strength.
  • At least two limiting ribs 124 are arranged on the groove wall of the receiving groove 121 at intervals.
  • a glue storage groove 123 is formed between two adjacent limiting ribs 124 .
  • connection method of the limiting rib 124 on the groove wall of the receiving groove 121 may be, but not limited to, bolt connection, clip connection, welding, riveting, integral molding and the like.
  • the integrated molding can be injection molding, die-casting, extrusion, stamping and other processes.
  • the way of forming the glue storage tank 123 on the tank wall of the receiving tank 121 may be: directly slotting on the tank wall of the receiving tank 121 to form one or more glue storage tanks 123 .
  • Two adjacent limiting ribs 124 are used to form a glue storage groove 123 so that the glue can be stably stored between the two limiting ribs 124 to improve the bonding strength.
  • setting the limiting ribs 124 on the groove wall of the receiving groove 121 is also conducive to strengthening the structural strength of the frame 120 so that the box structure 100 remains stable.
  • the groove wall of the receiving groove 121 and the outer pipe wall of the main pipe 111 are bonded by structural glue.
  • structural glue for example: it can be but not limited to epoxy resin type, polyurethane, etc., this application does not make specific limitations, as long as it can meet the needs of the groove wall of the accommodation groove 121 and the outer pipe wall of the main pipe 111 Bonding is possible.
  • Structural glue is used for bonding between the tank wall of the receiving tank 121 and the outer tube wall of the main pipeline 111 to meet the requirement of bonding strength between the two and improve the stability of the box structure 100 .
  • the box structure 100 further includes a bottom plate 130 .
  • the bottom plate 130 is disposed on a side of the cooling component 110 away from the frame 120 , and the bottom plate 130 is connected to the frame 120 to support the cooling component 110 .
  • connection between the bottom plate 130 and the frame 120 may be, but not limited to, bolt connection, clip connection, pin connection, welding, riveting and the like.
  • a seal 150 such as sealing foam, can be provided between the bottom plate 130 and the frame 120 to enhance the sealing between the bottom plate 130 and the frame 120 .
  • the bottom plate 130 is provided on the side of the cooling member 110 away from the frame 120, which not only provides protection for the box structure 100 (such as anti-ball hits, etc.);
  • the battery pack achieves stable and effective heat dissipation.
  • the base plate 130 includes a first plate body 131 and a second plate body 132 stacked.
  • the first plate body 131 is located between the cooling member 110 and the second plate body 132 .
  • the first plate body 131 is provided with a buffer structure 133 .
  • the buffer structure 133 can absorb the impact or impact energy on the bottom plate 130, weaken the impact force or the impact force is transmitted toward the battery pack, so as to achieve shock absorption and buffering effect, and can effectively protect the battery pack from external impact or impact damage.
  • the buffer structure 133 has various structural designs.
  • the buffer structure 133 can be a cavity structure; it can also be an elastic body, such as a rubber plate, a foam plastic plate, etc.; or, the buffer structure 133 can be a honeycomb elastic structure.
  • a buffer structure 133 is provided on the first plate body 131 to weaken the external impact force or the transmission of the impact force toward the battery pack, realize the shock absorption and buffering effect, avoid direct damage to the cooling member 110 and the battery pack by the bottom ball, and form a good bottom protection.
  • the first plate body 131 protrudes toward the cooling member 110 to form a buffer structure 133 on the side of the first plate body 131 facing the second plate body 132 .
  • the buffer structure 133 is a space structure, that is, a recessed part on the first plate body 131 . During the buffering process, the buffering structure 133 can allow the second plate body 132 to deform toward the first plate body 131 to absorb external impact or impact energy, and reduce impact force or impact force from being transmitted to the battery pack.
  • the buffer structure 133 can be formed by protruding the first plate body 131 toward the cooling member 110 , which simplifies the manufacturing process of the buffer structure 133 and improves the manufacturing efficiency under the premise of ensuring effective buffering.
  • the first plate body 131 protrudes toward the second plate body 132 to form a buffer structure 133 on the side of the first plate body 131 facing the cooling member 110 .
  • the buffer structure 133 formed by the first plate body 131 protruding toward the side of the second plate body 132 and the buffer structure 133 formed by the first plate body 131 protruding toward the side of the cooling member 110 can form a wave-shaped structure, which can not only Reinforce the structural strength of the bottom plate 130; and also enhance the cushioning effect on the bottom plate 130.
  • the buffer structure 133 can be formed by protruding the first plate body 131 toward the second plate body 132 , so that the manufacturing process of the buffer structure 133 is simplified and the manufacturing efficiency is improved under the premise of ensuring effective buffering.
  • the box structure 100 further includes a protective plate 140 .
  • the protection plate 140 is configured to cover the bottom plate 130 from a side of the bottom plate 130 away from the cooling member 110 .
  • the protective plate 140 covers the bottom plate 130 and can provide effective protection for the bottom plate 130 .
  • the bottom plate 130 can have various options, for example: the bottom plate 130 can be a steel plate, a PVC plate, and the like.
  • multiple punching structures and the like may be provided on the bottom plate 130 .
  • the protective plate 140 is provided to provide effective protection for the bottom plate 130, avoiding the cooling of the component 110 and the battery pack. Vulnerable to damage from external shocks.
  • the present application also provides a battery 1000, which includes a battery pack and the box structure 100 in any of the above solutions.
  • the present application also provides an electric device, including the battery 1000 in the above solution.
  • the electric device may be any device or system using the battery 1000 mentioned above, and the battery is used to provide electric energy for the electric device.
  • the present application provides a profile frame 120 integrated with a harmonica-type water-cooled plate box structure 100, including a frame 120, structural glue, a cooling member 110, a seal 150, The first plate body 131 , the second plate body 132 and the protective plate 140 .
  • the cooling member 110 is glued and fixed to the frame 120 without a fixed bracket structure, and has a simple structure, lighter weight, and lower cost; at the same time, the cooling member 110 is built in and contacts the battery pack through thermal conductive adhesive, which has good thermal conductivity.
  • the first plate body 131 and the second plate body 132 are designed as a double-layer stamping spot welding structure, with less structural parts, less space occupation in the Z direction ( ⁇ 15 millimeters (mm)), and high space utilization.
  • the first plate body 131 is stamped into a wave shape, which can effectively support the cooling member 110.
  • the second plate body 132 is designed at the bottom of the first plate body 131, which can increase the energy absorption structure and ensure the anti-ball performance of the bottom of the box.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请涉及一种箱体结构、电池及用电装置，在箱体结构中，利用主管道向支管道内通入冷却剂，并将支管道与电池组接触，以实现对电池组的直接散热，提升箱体结构的导热性能。由于主管道采用粘接方式固定在容纳槽内，因此，冷却构件与框架之间无需配置支架等结构，这样在保证有效降温的前提下简化箱体结构，使之重量更轻、成本更低。此外，在固定主管道时，对框架开设容纳槽，使得主管道与框架之间的粘接面积增大。如此，有利于增强冷却构件与框架之间的结合强度，保证箱体结构更加稳定。

Description

箱体结构、电池及用电装置
交叉引用
本申请引用于2022年3月3日递交的名称为“箱体结构、电池及用电装置”的第2022204571967号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及动力电池技术领域，特别是涉及箱体结构、电池及用电装置。
背景技术
随着社会的发展，电池技术被广泛地应用于各个领域，电池自身的性能好坏也越发受到重视。在影响电池性能的各项指标中，电池散热性能的优劣会极大程度地影响电池性能的稳定，因此，如何使电池具备良好的散热性能成为了当今一项重要的研究内容。
发明内容
基于此，有必要提供一种箱体结构、电池及用电装置，在保证有效降温的前提，实现电池的减重和降成本。
第一方面，本申请提供了一种箱体结构，用于容纳电池组，箱体结构包括：冷却构件与框架。冷却构件包括主管道及连通于主管道上的至少一个支管道，主管道用于向支管道通入冷却剂，支管道用于与电池组接触以冷却电池组。框架底部设置有容纳槽，主管道的至少部分位于容纳槽内，并且，主管道粘接固定于容纳槽。
上述的箱体结构，利用主管道向支管道内通入冷却剂，并将支管道与电池组接触，以实现对电池组的直接散热，提升箱体结构的导热性能。由于主管 道采用粘接方式固定在容纳槽内，因此，冷却构件与框架之间无需配置支架等结构，这样在保证有效降温的前提下简化箱体结构，使之重量更轻、成本更低。此外，在固定主管道时，对框架开设容纳槽，使得主管道与框架之间的粘接面积增大。如此，有利于增强冷却构件与框架之间的结合强度，保证箱体结构更加稳定。
在一些实施例中，容纳槽的槽壁包括底壁、以及分别连接于底壁两端的第一侧壁和第二侧壁，第一侧壁和第二侧壁远离底壁的一侧形成有开口，主管道通过开口粘接固定于容纳槽。如此，便于将主管道从该开口中粘接固定在容纳槽内，这样有利于提高箱体结构的装配效率。
在一些实施例中，主管道的截面形状为矩形，主管道的外管壁被配置为与底壁、第一侧壁和第二侧壁中的至少一者粘接。如此设计，有利于提高主管道与容纳槽之间的粘接强度，提升箱体结构的稳定性。
在一些实施例中，容纳槽的槽壁与主管道的外管壁两者中的至少一者设有蓄胶槽，蓄胶槽用于供粘接剂蓄留。如此，增加容纳槽与主管道之间的留胶量，避免粘接时发生大量流胶而导致粘接力度不足。
在一些实施例中，容纳槽的槽壁上间隔设有至少两个限位筋，相邻两个限位筋之间形成蓄胶槽。如此，利用相邻两个限位筋形成蓄胶槽，以使胶水稳定蓄留在两个限位筋之间，提高粘接强度；同时，在容纳槽的槽壁上设置限位筋，也有利于加固框架的结构强度，使得箱体结构保持稳定。
在一些实施例中，容纳槽的槽壁与主管道的外管壁通过结构胶粘接，以满足两者之间的结合强度需求，提高箱体结构的稳定性。
在一些实施例中，箱体结构还包括底板，底板设置于冷却构件远离框架的一侧，并且，底板连接于框架以支撑冷却构件。如此设计，不仅为箱体结构 提供防护；而且还稳定支撑冷却构件，使之稳定固定在框架上，便于其对电池组实现稳定、有效的散热。
在一些实施例中，底板包括层叠设置的第一板体与第二板体，第一板体位于冷却构件与第二板体之间，第一板体设置有缓冲结构。如此，削弱外部冲击力或撞击力朝电池组方向传递，实现减震缓冲效果，避免底部球击直接损伤冷却构件及电池组，形成良好的底部防护。
在一些实施例中，第一板体朝向冷却构件一侧凸起，以在第一板体朝向第二板体的一侧上形成缓冲结构。这样在确保有效缓冲的前提下，简化缓冲结构的制作工艺，提高制作效率。
在一些实施例中，第一板体朝向第二板体一侧凸起，以在第一板体朝向冷却构件的一侧上形成缓冲结构。同样，在确保有效缓冲的前提下，简化缓冲结构的制作工艺，提高制作效率。
在一些实施例中，箱体结构还包括防护板，防护板被配置为从底板远离冷却构件的一侧覆盖底板，设置防护板，为底板提供有效防护，避免冷却构件和电池组易受外界冲击而损坏。
第二方面，本申请提供了一种电池，电池包括电池组以及以上任一项的箱体结构。
第三方面，本申请提供了一种用电装置，包括以上的电池，该电池用于为用电装置提供电能。
附图说明
通过阅读对下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的， 而并不认为是对本申请的限制。而且在全部附图中，用相同的附图标号表示相同的部件。在附图中：
图1为本申请一些实施例的车辆的结构示意图；
图2为本申请一些实施例的箱体结构示意图；
图3为本申请一些实施例的箱体结构爆炸示意图；
图4为本申请一些实施例的箱体结构剖视图一；
图5为图4中圈A处结构放大示意图；
图6为本申请一些实施例的容纳槽结构放大示意图；
图7为本申请一些实施例的箱体结构剖视图二；
图8为图7中圈B处结构放大示意图。
1000、电池；2000、控制器；3000、马达；
100、箱体结构；110、冷却构件；111、主管道；112、支管道；120、框
架；121、容纳槽；122、开口；123、蓄胶槽；124、限位筋；125、第一侧壁；126、第二侧壁；127、底壁；130、底板；131、第一板体；132、第二板体；133、缓冲结构；140、防护板；150、密封件；200、粘接剂。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及 上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特 定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
目前，从市场形势的发展来看，动力电池的应用越加广泛。动力电池不仅被应用于水力、火力、风力和太阳能电站等储能电源系统，而且还被广泛应用于电动自行车、电动摩托车、电动汽车等电动交通工具，以及军事装备和航空航天等多个领域。随着动力电池应用领域的不断扩大，其市场的需求量也在不断地扩增。
本发明人注意到，电池在使用过程中会产生大量热量，若产生的热量不能及时有效排出，将会严重影响电池的稳定，缩短电池的使用寿命。为此，电池中通常会设置水冷结构，利用水冷结构的换热功能，将积累在电池中的热量排出。然而，传统的水冷结构因受限于自身结构缺陷，导致电池散热并不理想。
为了电池的散热效果的问题，申请人研究发现，可以在电池的底板外增加口琴式水冷板，以增强电池的散热效果。现有的口琴式水冷板通常采用支架固定在电池的底板上。在散热时，该水冷板通过电池的底板、支架等结构进行导热，实现对电池的换热。然而，这种安装方式依然无法实现对电池的有效散热降温；同时，也导致电池整体重量增加，制作成本增高。
基于以上考虑，为了解决采用口琴式水冷板而导致电池散热效果不佳、以及增加电池整体重量和成本的问题，发明人经过深入研究，设计了一种箱体 结构，在框架底部上设置有容纳槽，将主管道的至少部分位于容纳槽内，并将主管道以粘接方式固定于容纳槽。
在这样的箱体结构，利用主管道向支管道内通入冷却剂，并将支管道与电池组接触，以实现对电池组的直接散热，提升箱体结构的导热性能。由于主管道采用粘接方式固定在容纳槽内，因此，冷却构件与框架之间无需配置支架等结构，这样在保证有效降温的前提下简化箱体结构，使之重量更轻、成本更低。此外，在固定主管道时，对框架开设容纳槽，使得主管道与框架之间的粘接面积增大。如此，有利于增强冷却构件与框架之间的结合强度，保证箱体结构更加稳定。
本申请实施例公开的箱体结构可以但不限用于车辆、船舶或飞行器等用电装置中。可以使用具备本申请公开的电池等组成该用电装置的电源系统，这样，在保证有效降温的前提，实现电池的减重和降成本。
本申请实施例提供一种使用电池作为电源的用电装置，用电装置可以为但不限于手机、平板、笔记本电脑、电动玩具、电动工具、电瓶车、电动汽车、轮船、航天器等等。其中，电动玩具可以包括固定式或移动式的电动玩具，例如，游戏机、电动汽车玩具、电动轮船玩具和电动飞机玩具等等，航天器可以包括飞机、火箭、航天飞机和宇宙飞船等等。
以下实施例为了方便说明，以本申请一实施例的一种用电装置为车辆为例进行说明。
请参照图1，图1为本申请一些实施例提供的车辆的结构示意图。车辆可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆的内部设置有电池1000，电池1000可以设置在车辆的底部或头部或尾部。电池1000可以用于车辆的供电，例如，电池1000 可以作为车辆的操作电源。车辆还可以包括控制器2000和马达3000，控制器2000用来控制电池1000为马达3000供电，例如，用于车辆的启动、导航和行驶时的工作用电需求。
在本申请一些实施例中，电池1000不仅可以作为车辆的操作电源，还可以作为车辆的驱动电源，代替或部分地代替燃油或天然气为车辆提供驱动动力。
电池1000包括箱体结构100和电池单体，电池单体容纳于箱体结构100内。其中，箱体结构100用于为电池单体提供容纳空间。在一些实施例中，箱体结构100可以包括第一部分和第二部分，第一部分与第二部分相互盖合，第一部分和第二部分共同限定出用于容纳电池单体的容纳空间。
在电池1000中，电池单体可以是多个，多个电池单体之间可串联或并联或混联，混联是指多个电池单体中既有串联又有并联。多个电池单体之间可直接串联或并联或混联在一起，再将多个电池单体构成的整体容纳于箱体内；当然，电池1000也可以是多个电池单体先串联或并联或混联组成电池1000模块形式，多个电池1000模块再串联或并联或混联形成一个整体，并容纳于箱体结构100内。
其中，每个电池单体可以为二次电池或一次电池；还可以是锂硫电池、钠离子电池或镁离子电池，但不局限于此。电池单体可呈圆柱体、扁平体、长方体或其它形状等。
根据本申请的一些实施例，本申请提供了一种箱体结构100，用于容纳电池组，请参照图2，箱体结构100包括：冷却构件110与框架120。请参照图3，冷却构件110包括主管道111及连通于主管道111上的至少一个支管道112，主管道111用于向支管道112通入冷却剂，支管道112用于与电池组接触以冷却电池组。请参照图4与图5，框架120底部设置有容纳槽121，主管道111的至少 部分位于容纳槽121内，并且，主管道111粘接固定于容纳槽121。
电池组可为多个电池单体先串联或并联或混联后，再封装成电池1000模组的形式；也可为仅由若干个电池单体串联或并联或混联形成的结构。电池组在箱体结构100内与支管道112接触时，可将支管道112的外管壁直接贴在电池组上，此时电池组与冷却构件110之间并无其他型材等结构。当然，为提高两者之间的导热，可在电池组与冷却构件110之间的贴合面上涂抹导热物质，比如导热胶等。其中，导热胶是指单组份、导热型、室温固化有机硅粘接密封胶，是通过空气中的水份发生缩合反应放出低分子引起交联固化，而硫化成高性能的弹性体，又称为导热硅胶。
容纳槽121的横断面形状有多种设计，比如：容纳槽121的横断面可设计为但不限于方形、圆形、椭圆形、五边形等。而主管道111的横断面也同样可多种设计，但若主管道111的横断面与容纳槽121的横断面保持同一外形设计时，可进一步加强主管道111与容纳槽121之间的结合强度。
另外，冷却剂可为液体，也可为气体等。至于其具体种类，本申请不作限定，只需能通入主管道111内对电池组实现冷却降温均可。
主管道111采用粘接方式固定在容纳槽121内，因此，冷却构件110与框架120之间无需配置支架等结构，这样在保证有效降温的前提下简化箱体结构100，使之重量更轻、成本更低。此外，在固定主管道111时，对框架120开设容纳槽121，使得主管道111与框架120之间的粘接面积增大。如此，有利于增强冷却构件110与框架120之间的结合强度，保证箱体结构100更加稳定。
根据本申请的一些实施例，请参照图6，容纳槽121的槽壁包括底壁127、以及分别连接于底壁127两端的第一侧壁125和第二侧壁126。第一侧壁125和第二侧壁126远离底壁127的一侧形成有开口122。主管道111通过开口122粘 接固定于容纳槽121。
开口122的大小可配置为大于或等于主管道111的外部尺寸，这样方便主管道111粘接在容纳槽121内。当然，开口122的大小也可配置为稍小于主管道111的外部尺寸，在粘接时，需将主管道111挤压开口122，以使其发生形变，使得主管道111压入容纳槽121中。而对于这种开口122，可对容纳槽121内的主管道111起到限位作用，能避免其从容纳槽121中掉出。
另外，在粘接时，为了提高粘接强度，可分别在底壁127、第一侧壁125和第二侧壁126上做表面处理，比如：在底壁127、第一侧壁125和第二侧壁126上分别做砂面处理或者压花等，以增加各自表面的附胶能力。
在第一侧壁125与第二侧壁126远离底壁127的一侧设计一开口122，便于将主管道111从该开口122中粘接固定在容纳槽121内，这样有利于提高箱体结构100的装配效率。
根据本申请的一些实施例，请参照图5，主管道111的截面形状为矩形。主管道111的外管壁被配置为与底壁127、第一侧壁125和第二侧壁126中的至少一者粘接。
主管道111的外管壁可仅与底部、第一侧壁125和第二侧壁126中之一进行粘接；也可与三者中任一两个进行粘接；或者，主管道111的外管壁可同时与底部、第一侧壁125和第二侧壁126进行粘接。其中，主管道111的截面应理解为：以垂直于主管道111轴线的平面截取主管道111，所获得的平面。
将主管道111的截面形状设计为矩形，以便主管道111的外管壁更容易与底壁127、第一侧壁125和第二侧壁126中的至少一者进行粘接，有利于提高两者的粘接强度，提升箱体结构100的稳定性。
根据本申请的一些实施例，请参照图5与图6，容纳槽121的槽壁与主管 道111的外管壁两者中的至少一者设有蓄胶槽123。蓄胶槽123用于供粘接剂蓄留。
蓄胶槽123可设置在容纳槽121的槽壁上，也可设置在主管道111的外管壁上；当然，也可同时设置在容纳槽121的槽壁和主管道111的外管壁上。
蓄胶槽123在框架120的长度方向上，可为一条完整的槽状结构；也可为由多条短槽间隔排列而成的结构。而在容纳槽121的周向上，蓄胶槽123的数量可为一个，也可为多个。比如：底座、第一侧壁125和第二侧壁126中至少一者上设有蓄胶槽123。
在容纳槽121的槽壁与主管道111的外管壁两者中的至少一者上开设蓄胶槽123，以增加容纳槽121与主管道111之间的留胶量，避免粘接时发生大量流胶而导致粘接力度不足。
根据本申请的一些实施例，请参照图6，容纳槽121的槽壁上间隔设有至少两个限位筋124。相邻两个限位筋124之间形成蓄胶槽123。
限位筋124在容纳槽121的槽壁上的连接方式可为但不限于螺栓连接、卡接、焊接、铆接、一体成型等。其中，一体成型可为注塑、压铸、挤压、冲压等工艺。
当然，在另一些实施例中，蓄胶槽123在容纳槽121的槽壁上的成型方式可为：直接在容纳槽121的槽壁上开槽，以形成一条或多条蓄胶槽123。
利用相邻两个限位筋124形成蓄胶槽123，以使胶水稳定蓄留在两个限位筋124之间，提高粘接强度。同时，在容纳槽121的槽壁上设置限位筋124，也有利于加固框架120的结构强度，使得箱体结构100保持稳定。
根据本申请的一些实施例，请参照图5，容纳槽121的槽壁与主管道111的外管壁通过结构胶粘接。
结构胶有多种选择，比如：其可以为但不限于环氧树脂型、聚氨酯等，对此，本申请不作具体限定，只需能满足容纳槽121的槽壁与主管道111的外管壁之间粘接均可。
在容纳槽121的槽壁与主管道111的外管壁之间采用结构胶进行粘接，满足两者之间的结合强度需求，提高箱体结构100的稳定性。
根据本申请的一些实施例，请参照图3，箱体结构100还包括底板130。底板130设置于冷却构件110远离框架120的一侧，并且，底板130连接于框架120以支撑冷却构件110。
底板130与框架120之间的连接方式可为但不限于螺栓连接、卡接、销接、焊接、铆接等。
另外，底板130与框架120之间可设置密封件150，比如密封泡棉等，以增强底板130与框架120之间的密封性。
在冷却构件110远离框架120的一侧设置底板130，不仅为箱体结构100提供防护(比如防球击等)；而且还稳定支撑冷却构件110，使之稳定固定在框架120上，便于其对电池组实现稳定、有效的散热。
根据本申请的一些实施例，请参照图7与图8，底板130包括层叠设置的第一板体131与第二板体132。第一板体131位于冷却构件110与第二板体132之间。第一板体131设置有缓冲结构133。
缓冲结构133能吸收底板130上承受的冲击或撞击能量，削弱该冲击力或撞击力朝电池组方向传递，以实现减震缓冲效果，能有效保护电池组不受外界冲击或撞击所破坏。缓冲结构133有多种结构设计，比如：缓冲结构133可为空腔结构；也可为弹性体，比如：橡胶板、泡沫塑料板等；或者，缓冲结构133可为蜂窝弹性结构等。
在第一板体131上设置缓冲结构133，削弱外部冲击力或撞击力朝电池组方向传递，实现减震缓冲效果，避免底部球击直接损伤冷却构件110及电池组，形成良好的底部防护。
根据本申请的一些实施例，请参照图8，第一板体131朝向冷却构件110一侧凸起，以在第一板体131朝向第二板体132的一侧上形成缓冲结构133。
缓冲结构133为空间结构，即第一板体131上呈凹陷的部分。在缓冲过程中，该缓冲结构133能允许第二板体132朝第一板体131的方向形变，以吸收外部的冲击或撞击的能量，减弱冲击力或撞击力向电池组传递。
将第一板体131朝冷却构件110凸起，即可形成缓冲结构133，这样在确保有效缓冲的前提下，简化缓冲结构133的制作工艺，提高制作效率。
根据本申请的一些实施例，请参照图8，第一板体131朝向第二板体132一侧凸起，以在第一板体131朝向冷却构件110的一侧上形成缓冲结构133。
第一板体131朝第二板体132一侧凸起形成的缓冲结构133，与第一板体131朝向冷却构件110一侧凸起形成的缓冲结构133，可构成波浪型结构，这不仅能加固底板130结构强度；而且也能增强底板130上的缓冲效果。
将第一板体131朝第二板体132凸起，即可形成缓冲结构133，这样在确保有效缓冲的前提下，简化缓冲结构133的制作工艺，提高制作效率。
根据本申请的一些实施例，请参照图3，箱体结构100还包括防护板140。防护板140被配置为从底板130远离冷却构件110的一侧覆盖底板130。
防护板140覆盖底板130，可以为底板130提供有效的防护作用。在实际制作时，底板130可有多种选型，比如：底板130可为钢板、PVC板等。另外，为了减轻箱体结构100整体重量，可在底板130上开设多个冲孔结构等。
设置防护板140，为底板130提供有效防护，避免冷却构件110和电池组 易受外界冲击而损坏。
根据本申请的一些实施例，本申请还提供了一种电池1000，电池1000包括电池组以及以上任一方案中的箱体结构100。
根据本申请的一些实施例，本申请还提供了一种用电装置，包括以上方案中的电池1000。
用电装置可以是前述任一应用电池1000的设备或系统，该电池用于为用电装置提供电能。
根据本申请的一些实施例，请参照图2至图8，本申请提供了一种型材框架120集成口琴式水冷板箱体结构100，包括框架120、结构胶、冷却构件110、密封件150、第一板体131、第二板体132和防护板140。冷却构件110与框架120胶粘固定，无需固定支架结构，结构简单，重量更轻，成本更低；同时，冷却构件110内置，与电池组通过导热胶接触，导热性能好。第一板体131和第二板体132设计为双层冲压点焊结构，结构件少，Z向空间占用少(≤15毫米(mm))，空间利用率高。另外，第一板体131冲压成波浪型，可对冷却构件110进行有效支撑，第一板体131底部设计第二板体132，能增加吸能结构，保证箱体底部防球击性能。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中 公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (13)

  1. 一种箱体结构，用于容纳电池组，所述箱体结构包括：
    冷却构件，包括主管道及连通于所述主管道上的至少一个支管道，所述主管道用于向所述支管道通入冷却剂，所述支管道用于与所述电池组接触以冷却所述电池组；
    框架，所述框架底部设置有容纳槽，所述主管道的至少部分位于所述容纳槽内，并且，所述主管道粘接固定于所述容纳槽。
  2. 根据权利要求1所述的箱体结构，其中，所述容纳槽的槽壁包括底壁、以及分别连接于所述底壁两端的第一侧壁和第二侧壁，所述第一侧壁和所述第二侧壁远离所述底壁的一侧形成有开口，所述主管道通过所述开口粘接固定于所述容纳槽。
  3. 根据权利要求2所述的箱体结构，其中，所述主管道的截面形状为矩形，所述主管道的外管壁被配置为与所述底壁、所述第一侧壁和所述第二侧壁中的至少一者粘接。
  4. 根据权利要求1-3任一项所述的箱体结构，其中，所述容纳槽的槽壁与所述主管道的外管壁两者中的至少一者设有蓄胶槽，所述蓄胶槽用于供粘接剂蓄留。
  5. 根据权利要求4所述的箱体结构，其中，所述容纳槽的槽壁上间隔设有至少两个限位筋，相邻两个所述限位筋之间形成所述蓄胶槽。
  6. 根据权利要求1-5任一项所述的箱体结构，其中，所述容纳槽的槽壁与所述主管道的外管壁通过结构胶粘接。
  7. 根据权利要求1-6任一项所述的箱体结构，其中，所述箱体结构还包括底板，所述底板设置于所述冷却构件远离所述框架的一侧，并且，所述底板连 接于所述框架以支撑所述冷却构件。
  8. 根据权利要求7所述的箱体结构，其中，所述底板包括层叠设置的第一板体与第二板体，所述第一板体位于所述冷却构件与所述第二板体之间，所述第一板体设置有缓冲结构。
  9. 根据权利要求7或8所述的箱体结构，其中，所述第一板体朝向所述冷却构件一侧凸起，以在所述第一板体朝向第二板体的一侧上形成所述缓冲结构。
  10. 根据权利要求7-9任一项所述的箱体结构，其中，所述第一板体朝向所述第二板体一侧凸起，以在所述第一板体朝向所述冷却构件的一侧上形成所述缓冲结构。
  11. 根据权利要求7-10任一项所述的箱体结构，其中，所述箱体结构还包括防护板，所述防护板被配置为从所述底板远离冷却构件的一侧覆盖所述底板。
  12. 一种电池，所述电池包括电池组以及权利要求1-11中任一项所述的箱体结构。
  13. 一种用电装置，包括权利要求12所述的电池，所述电池用于为所述用电装置提供电能。
PCT/CN2023/077387 2022-03-03 2023-02-21 箱体结构、电池及用电装置 WO2023165377A1 (zh)

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