WO2025145779A1 - 集流组件及其制备工艺、换热装置、电池及用电设备 - Google Patents

集流组件及其制备工艺、换热装置、电池及用电设备 Download PDF

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Publication number
WO2025145779A1
WO2025145779A1 PCT/CN2024/130935 CN2024130935W WO2025145779A1 WO 2025145779 A1 WO2025145779 A1 WO 2025145779A1 CN 2024130935 W CN2024130935 W CN 2024130935W WO 2025145779 A1 WO2025145779 A1 WO 2025145779A1
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WO
WIPO (PCT)
Prior art keywords
current collecting
heat exchange
flow
channel
connector
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2024/130935
Other languages
English (en)
French (fr)
Inventor
胡龙翔
王桃
王鹏理
宾旭海
尉安平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
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 Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Publication of WO2025145779A1 publication Critical patent/WO2025145779A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • 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
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/18—Heat-exchangers or parts thereof

Definitions

  • the present application belongs to the field of battery technology, and in particular relates to a current collecting assembly and a preparation process thereof, a heat exchange device, a battery and electrical equipment.
  • Some equipment or devices need to maintain a suitable operating temperature when working to maintain stability and continuity of operation, especially batteries.
  • battery temperature control has become a problem that must be solved, so some heat exchange devices are configured on the batteries to control the battery temperature.
  • Heat exchange devices usually use heat exchange media to achieve heat transfer, and the transmission of heat exchange media requires the use of some components that can guide or collect flow, so as to supply or return liquid to each structure.
  • components used for current collection are often manufactured by cutting or turning metal profiles, which is not only difficult to process but also costly.
  • the present application provides a current collecting assembly and its preparation process, a heat exchange device, a battery and an electrical equipment, aiming to reduce the processing difficulty of the current collecting assembly and appropriately reduce the cost.
  • the present application provides a current collecting assembly, the current collecting assembly includes a current collecting part and a connecting part, the current collecting part is a non-metallic part, the connecting part is a metal part, the current collecting part and the connecting part are an integrally formed component, and the current collecting part is connected to a heat exchanger through the connecting part.
  • the current collecting assembly includes a current collecting part and a connecting part, the current collecting part is a non-metallic part, the connecting part is a metal part, the current collecting part and the connecting part can be made by an integral forming process respectively, the connecting part can be combined with the current collecting part during the forming process of the current collecting part, and can also be connected with the current collecting part after the current collecting part is formed, without the need to use turning processing to make the entire current collecting assembly, which effectively simplifies the processing technology of the current collecting assembly, improves the production efficiency of the current collecting assembly, and reduces the production cost of the current collecting assembly.
  • the current collecting part is an injection molded component, and the current collecting part wraps at least a portion of the connecting part so that the current collecting part is connected to the connecting part.
  • the current collecting part is prepared in the form of injection molding, while the traditional current collecting assembly is prepared as a whole in the form of metal processing turning.
  • the current collecting assembly of the present application is not only simple and fast in the manufacturing method, which reduces the difficulty of processing, but also greatly improves the efficiency and reduces the cost to a certain extent. Since the connecting part and the current collecting part form an integrated structure, the connecting part and the current collecting part adopt the form of integral injection molding casting, which is very convenient and quick to operate. After the casting of the current collecting part is completed, the connecting part is also formed on the current collecting part, and this form makes the connection between the connecting part and the current collecting part better and more stable.
  • the current collecting member is a thermoplastic material member.
  • the thermoplastic material piece is one or more of ABS material piece, polyethylene piece, polypropylene piece, polyvinyl chloride piece, polystyrene piece, polyoxymethylene piece, polycarbonate piece, and polyamide piece.
  • a limiting structure is provided between the current collecting member and the connecting member, and the current collecting member is connected to the connecting member through the limiting structure.
  • the limiting structure ensures the firmness of the connection between the connecting member and the current collecting member.
  • the limiting structure includes a convex portion and a concave portion, the convex portion is provided on one of the connecting member and the current collecting member, the concave portion is provided on the other of the connecting member and the current collecting member, and the convex portion is embedded in the concave portion so that the current collecting member is connected to the connecting member.
  • the structure in which the convex portion and the concave portion cooperate with each other further strengthens the firmness of the connection between the connecting member and the current collecting member.
  • the shape of the protrusion is one or more of a hook shape, a barb shape, and a bend shape.
  • the shape of the protrusion can further increase the firmness of the connection.
  • the recess is one or more of a hook-shaped recess, a barb-shaped recess, and a bent-shaped recess.
  • the specific form of the recess also plays a role in further strengthening the firmness of the connection.
  • the connector is disposed around the port of the current collecting member close to the heat exchange member.
  • the connector When the connector is connected to the heat exchange member, it can be connected to the heat exchange member in the entire circumferential direction, thereby increasing connection stability and reliability.
  • the limiting structures are evenly distributed along the circumference of the connecting member, so that each part of the connecting member and the current collecting member maintains a balanced degree of connection firmness.
  • the material of the connector is the same as that of the heat exchanger, or the material of the connector is one or more of aluminum, aluminum alloy, iron, steel or copper.
  • the material of the connector meets the welding requirements, and the connection is made firmer by welding, and a sealed connection can be achieved. Moreover, the welding form is easier to operate and has good stability compared to other connection forms, which can improve the processing efficiency.
  • the connecting member and the heat exchange member are welded, which can not only increase the firmness of the connection but also achieve a better relative seal.
  • the current collecting member includes:
  • the flow collector includes a flow collector and a flow delivery part.
  • the flow collector is provided with a first flow channel, which is used to connect the heat exchange channel of the heat exchanger.
  • the flow delivery part is connected to the flow collector, and the flow delivery part has a second flow channel, which is connected to the first flow channel.
  • a pipeline form for liquid supply and return is provided, and liquid can enter each flow collector and each heat exchanger, realizing a full range of liquid circulation heat exchange system.
  • the flow delivery portion includes a tube body, the inner cavity of the tube body forms the second flow channel, the flow collecting portion is provided with a through hole, the tube body is inserted into the through hole, and a through hole connected to the first flow channel is provided on the tube body.
  • the tube body is a through-length pipe, which is arranged on the flow collecting portion through the through hole, has a stable and reliable structure, and realizes effective communication through the through hole.
  • the flow delivery portion includes a first connector and a second connector connected to the flow collecting portion, the first connector having a first channel, the second connector having a second channel, the first channel and the second channel being connected to form the second flow channel.
  • the first connector and the second connector have a simple structure and are easy to prepare, and because the first connector and the second connector are provided, the front and rear flow collecting parts can be connected by docking the connectors, thereby facilitating the connection of multiple second channels to form a main flow path.
  • the first connector and the second connector are connected to opposite sides of the current collecting portion, so that a second channel can be formed, and the arrangement is simpler and more convenient.
  • the flow collecting portion includes a main body and a spacer, the main body has the first flow channel, the spacer is arranged in the first flow channel and separates the first flow channel into a first flow section and a second flow section, the spacer is provided with a flow hole, and the first flow section and the second flow section are connected through the flow hole.
  • the first flow section and the second flow section are provided, and the shapes of the two can be set as needed, so that the second flow channel and the heat exchange channel can be conveniently connected respectively.
  • the present application further provides a preparation process for preparing the current collecting assembly provided in any one of the above embodiments, comprising the following steps:
  • the molten liquid is poured into the second mold so that the molten liquid wraps at least a portion of the connecting member, and the molten liquid is solidified to form the current collecting member before demoulding.
  • the preparation method is simple and easy to operate, reduces the difficulty of preparing the current collecting assembly, and saves costs.
  • the present application further provides a heat exchange device, the heat exchange device comprising a heat exchange element and the current collecting assembly provided in any one of the above embodiments, the heat exchange element being connected to the connecting element, which can reduce the difficulty of preparing the heat exchange device and save costs.
  • the present application further provides a battery, the battery comprising the heat exchange device provided in the above embodiment.
  • the battery is equipped with the heat exchange device in the present application, the manufacturing cost of the battery is reduced, and the difficulty of manufacturing the battery is reduced.
  • the present application further provides an electric device, the electric device comprising the battery provided in the above embodiment, which reduces the difficulty and cost of manufacturing the electric device.
  • FIG1 is a schematic structural diagram of a vehicle according to some embodiments of the present application.
  • FIG2 is a schematic diagram of the three-dimensional structure of a current collecting assembly according to some embodiments of the present application.
  • FIG3 is a top view of the current collecting assembly in FIG2 ;
  • FIG4 is a bottom view of the current collecting assembly in FIG2 ;
  • FIG5 is a left side view of the current collecting assembly in FIG2;
  • FIG6 is a right side view of the current collecting assembly in FIG2;
  • FIG7 is a front view of the current collecting assembly in FIG2;
  • FIG8 is a rear view of the current collecting assembly in FIG2;
  • FIG9 is a schematic diagram of a three-dimensional structure of a connector according to some embodiments of the present application.
  • FIG10 is a schematic diagram of the structure of a battery provided in some embodiments of the present application.
  • FIG11 is a schematic diagram of the structure of a connector provided in some other embodiments of the present application.
  • FIG. 12 is a schematic diagram of the structure of a connector provided in some further embodiments of the present application.
  • the reference numerals in the specific implementation manner are as follows: 1000. Vehicles; 100, battery; 200, controller; 300, motor; 10. Current collecting assembly; 11. Current collecting part; 12. Connecting part; 111, flow collecting part; 112, flow conveying part; 113, flow hole; 114, tank body; 115, liquid inlet; 116, liquid outlet; 117, second flow channel; 118, convex part; 119, concave part; 20. Heat exchange components.
  • the term "and/or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.
  • multiple refers to more than two (including two).
  • multiple groups refers to more than two groups (including two groups), and “multiple pieces” refers to more than two pieces (including two pieces).
  • Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of battery application areas, its market demand is also constantly expanding.
  • the battery may include multiple battery cells, wherein the multiple battery cells may be connected in series, in parallel, or in a hybrid connection, wherein the hybrid connection refers to a mixture of series and parallel connections.
  • multiple battery cells may be connected in series, in parallel, or in a hybrid connection to form a battery module, and multiple battery modules may be connected in series, in parallel, or in a hybrid connection to form a battery.
  • multiple battery cells may be directly formed into a battery, or may be first formed into a battery module, and the battery module may then be formed into a battery.
  • the battery is further disposed in an electrical device to provide electrical energy to the electrical device.
  • the battery cell may be, but is not limited to, a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery, or a magnesium-ion battery, etc., and the embodiments of the present application do not limit this.
  • the battery cell may be cylindrical, flat, rectangular, or in other shapes, etc., and the embodiments of the present application do not limit this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and soft-pack battery cells.
  • Batteries of any shape or connected in any form will generate heat during the use of the battery. If the heat is too high, it will have an adverse effect on the performance and service life of the battery. Similarly, in a low-temperature environment, if the temperature of the battery is too low, it will also have an adverse effect on the performance and service life of the battery.
  • a heat exchange device is usually set inside the battery to control the temperature of the battery cells in the battery.
  • Heat exchange devices usually use heat exchange media as heat exchange carriers, and use liquid pumps and circulation pipelines to complete the flow of heat exchange media inside the battery. They are divided into direct contact heat exchange and indirect contact heat exchange.
  • the direct contact heat exchange method is to immerse the battery pack directly in the heat exchange medium;
  • the indirect contact heat exchange method is to directly contact the heat exchange component with the battery cell or battery module, so that the heat exchange medium in the heat exchange component absorbs the heat of the battery cell or transfers the heat to the battery cell.
  • the heat exchange medium flows through the heat exchange element, thereby taking away the heat from the battery cell or transferring the heat to the battery cell, so as to control the temperature of the battery cell within a suitable range.
  • the heat exchanger is usually set between two adjacent battery cells or between two adjacent battery modules, which is conducive to the heat transfer of the battery cells. Therefore, based on this situation, multiple heat exchangers will be used, and it is necessary to provide liquid supply and return channels for multiple heat exchangers at the same time.
  • a current collector assembly is used. Therefore, the heat exchange device generally includes a heat exchanger, a current collector assembly, and a liquid pump.
  • the current collecting assembly is usually made of metal profiles, which are generally long strips and need to be cut into monomers of the required length, and then the monomers are turned. This form of processing is difficult, which not only greatly reduces the work efficiency but also causes a large cost.
  • an embodiment of the present application provides a current collecting assembly to reduce the processing difficulty to a certain extent and can appropriately reduce the processing cost.
  • the current collecting assembly provided in the embodiment of the present application includes a current collecting part and a connecting part.
  • the current collecting part is a non-metallic part
  • the connecting part is a metal part.
  • the current collecting part and the connecting part can be made respectively by an integrated molding process.
  • the connecting part can be combined with the current collecting part during the molding process of the current collecting part, and can also be connected to the current collecting part after the current collecting part is molded. There is no need to manufacture the entire current collecting assembly by turning, which effectively simplifies the processing technology of the current collecting assembly, improves the production efficiency of the current collecting assembly, and reduces the production cost of the current collecting assembly.
  • the above-mentioned current collecting assembly can be applied to various devices with fluid conveying functions, such as heat exchange devices, water supply devices, etc.
  • the following takes the application of the current collecting assembly to a heat exchange device in a battery as an example for explanation.
  • the battery disclosed in the embodiment of the present application can be applied to electrical devices using the battery as a power source, wherein the electrical devices may be, but are not limited to, mobile phones, tablets, laptops, electric toys, electric tools, battery vehicles, electric vehicles, ships, spacecraft, etc.
  • the electric toys may include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys, and electric airplane toys, etc.
  • the spacecraft may include airplanes, rockets, space shuttles, and spacecrafts, etc.
  • FIG. 1 is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of the present application.
  • the vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • a battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000.
  • the battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000.
  • the vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for the starting, navigation and driving power requirements of the vehicle 1000.
  • the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.
  • the battery 100 may include a box, a battery cell and a heat exchange device, wherein the battery cell is contained in the box.
  • the box is used to provide a containing space for the battery cell, and the box may adopt a variety of structures.
  • the battery cell may be a secondary battery or a primary battery, wherein a secondary battery refers to a battery cell that can be used continuously by activating the active material by charging after the battery cell is discharged, and a primary battery refers to a battery cell that cannot be used continuously by activating the active material by charging after the power of the battery cell is exhausted.
  • the battery cell may also be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., but is not limited thereto.
  • the battery cell may be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell or a battery cell of other shapes, wherein the prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, a polygonal prismatic battery, and a polygonal prismatic battery is, for example, a hexagonal prismatic battery, etc., and the present application has no particular restrictions.
  • the heat exchange device may include a heat exchange element 20, a current collecting assembly 10, and a pump body for driving the flow.
  • the current collecting assembly 10 can connect multiple heat exchangers 20 into an interconnected structure, which is convenient for liquid supply and liquid return, so that multiple heat exchangers 20 form an integrated heat exchange device.
  • the current collecting assembly 10 has a current collecting channel, which is used to connect the heat exchange channels of the heat exchangers 20.
  • the heat exchanger 20 is a component used for heat exchange between the battery cells or battery modules in the battery 100. It can be understood that there is a heat exchange channel inside the heat exchanger 20, and the heat exchange medium can circulate in the heat exchange channel to take away the heat generated by the battery cells or transfer the heat to the battery cells.
  • the number of heat exchangers 20 can be multiple, and two adjacent heat exchangers 20 can be connected through the above-mentioned current collector assembly 10 so that the heat exchange channels of the two adjacent heat exchangers 20 are connected.
  • the current collecting assembly 10 includes a current collecting part 11 and a connecting part 12.
  • the current collecting part 11 is a non-metallic part, and the connecting part 12 is a metal part.
  • the current collecting part 11 and the connecting part 12 are integrally formed components, and the current collecting part 11 is connected to the heat exchange part 20 through the connecting part 12.
  • the current collecting part 11 is the main part of the current collecting assembly 10. It can be understood that a current collecting channel is formed inside the current collecting part 11, and the current collecting channel is connected to the heat exchange channel of the heat exchange part 20 to realize the liquid supply function and liquid return function of the heat exchange medium.
  • the current collecting part 11 is a non-metallic part, that is, the current collecting part 11 is made of non-metallic materials, and the non-metallic materials can be but not limited to plastics, ceramics, glass, etc.
  • the current collecting part 11 is made of an integrated molding process. For example, when the material of the current collecting part 11 is plastic, the current collecting part 11 can be made of an injection molding process.
  • the connector 12 is a component for connecting the current collector 11 and the heat exchanger 20. It can be understood that a connecting channel is formed inside the connector 12.
  • the connector 12 When the connector 12 is connected to the current collector 11 and the heat exchanger 20, the current collecting channel of the current collector 11 is connected to the heat exchange channel of the heat exchanger 20 through the connecting channel of the connector 12, so that the heat exchange medium can flow from the heat exchange channel of the heat exchanger 20 to the current collecting channel of the current collector 11 through the connecting channel of the connector 12, or flow from the current collecting channel of the current collector 11 to the heat exchange channel of the heat exchanger 20 through the connecting channel of the connector 12.
  • the heat exchanger 20 is usually made of metal material with good heat conductivity.
  • the connector 12 provided in the embodiment of the present application is used to connect with the heat exchanger 20, preferably by welding, the connector 12 provided in the embodiment of the present application is a metal part, that is, the connector 12 is made of metal material, and the metal material can be but not limited to aluminum, aluminum alloy, copper, iron, steel, stainless steel, etc.
  • the material of the connector 12 can be the same as or different from the material of the heat exchanger 20.
  • the current collector 11 is connected to the heat exchanger 20 through the connector 12.
  • the connector 12 is connected between the current collector 11 and the heat exchanger 20.
  • the current collector 11 covers at least part of the connector 12 during the molding process, so that the current collector 11 and the connector 12 are combined together after the current collector 11 is molded.
  • the current collector 11 and the connector 12 are connected together after being independently molded, and the connection method between the current collector 11 and the connector 12 can be, but not limited to, fastening connection, bonding, etc.
  • the connection method between the connector 12 and the heat exchanger 20 can be, but not limited to, welding, fastening connection, bonding, etc.
  • the heat exchange channel of the heat exchange element 20 has a liquid inlet and a liquid outlet.
  • the collecting piece 11 is connected to the liquid inlet of the heat exchange element 20 through a connecting piece 12.
  • the heat exchange channel of the heat exchanger 20 has a liquid inlet and a liquid outlet, and the collecting piece 11 is connected to the liquid outlet of the heat exchanger 20 through the connecting piece 12.
  • the number of heat exchangers 20 is multiple, the number of collecting assemblies 10 is also multiple, and the collecting pieces 11 of the multiple collecting assemblies 10 are connected in sequence.
  • the heat exchange channel of the heat exchanger 20 has a liquid inlet and a liquid outlet.
  • One collecting member 11 is connected to the liquid inlet of the heat exchanger 20 through a connecting member 12, and another collecting member 11 is connected to the liquid outlet of the heat exchanger 20 through another connecting member 12.
  • there are multiple heat exchangers 20 there are multiple collecting assemblies 10.
  • the multiple collecting members 11 connected to the liquid inlet of the heat exchanger 20 are connected in sequence, and the multiple collecting members 11 connected to the liquid outlet of the heat exchanger 20 are connected in sequence.
  • the current collecting assembly 10 provided in the embodiment of the present application includes a current collecting member 11 and a connecting member 12.
  • the current collecting member 11 is a non-metallic member
  • the connecting member 12 is a metal member.
  • the current collecting member 11 and the connecting member 12 can be made by an integral molding process respectively.
  • the connecting member 12 can be combined with the current collecting member 11 during the molding process of the current collecting member 11, or can be connected with the current collecting member 11 after the current collecting member 11 is molded, without the need to mold the current collecting member 11.
  • the entire assembly 10 is manufactured by turning, which effectively simplifies the processing technology of the current collecting assembly 10, improves the production efficiency of the current collecting assembly 10, and reduces the production cost of the current collecting assembly 10.
  • the current collecting member 11 may be a plastic member, and the current collecting member 11 is an injection-molded component.
  • the current collecting member 11 wraps at least a portion of the connecting member 12 so that the current collecting member 11 is connected to the connecting member 12 .
  • the current collecting member 11 provided in this embodiment is cast and formed by injection molding, and the connecting member 12 can be partially immersed in the casting liquid when the current collecting member 11 is cast to be connected after molding.
  • the injection molding of the current collecting member 11 is generally achieved with the help of a mold, and the shape of the mold can be designed in advance according to the shape that the current collecting member 11 needs to be cast, and then the connecting member 12 is set in the mold, and then the thermoplastic material is poured into the mold to fill the inside of the mold. After cooling and molding, the mold is opened for demolding, and the current collecting assembly 10 can be formed, and the current collecting channel structure on the current collecting member 11 can be formed.
  • the casting of the current collecting member 11 needs to be achieved with the aid of a mold, specifically, by pouring a thermoplastic material into the mold and then waiting for it to cool. Since the connecting member 12 and the current collecting member 11 are an integrated structure, the connecting member 12 and the current collecting member 11 can be cast as an integrated structure. Specifically, the current collecting member 11 is cast and formed by a mold, and the connecting member 12 is pre-buried in the mold to be cast into an integrated structure with the current collecting member 11.
  • the mold may be a special mold for casting thermoplastic materials.
  • the inner cavity shape of the mold may be designed according to the shape of the current collector 11.
  • the connector 12 is pre-buried in the mold, that is, the connector 12 is first positioned before casting so that it is in the inner cavity of the mold. When casting, the cast thermoplastic material and the connector 12 may form an integrated structure.
  • the current collector 11 wraps at least part of the connector 12, that is, a part of the connector 12 needs to be exposed for interconnection with the heat exchanger 20.
  • the embedded position of the connector 12 in the mold needs to be positioned according to requirements and cannot be submerged by the thermoplastic material. At least after casting, it has an exposed part on the surface of the current collector 11 so that it can be connected to the heat exchanger 20. Specifically, it can be arranged like this: after casting is completed, a part of the connector 12 is cast inside the current collector 11, and another part of the connector 12 is exposed outside the current collector 11, forming a boss or a raised step structure on the surface of the current collector 11, so that it is convenient for the connector 12 to connect the heat exchanger 20.
  • the pre-embedded positioning of the connector 12 in the mold can adopt some supporting structures to realize the positioning of the connector 12.
  • the supporting structure can be made of the same material as the current collector 11, but it needs to be in a cooled and formed state so that it has a certain strength to meet the support requirements.
  • the supporting structure can adopt a rod-shaped structure, a ring-shaped structure or a hook-shaped structure, or a combination of multiple structures, so that the connector 12 can be positioned in the mold in a suspended state, and try not to contact the inner wall of the mold, or when required, it can also choose to contact the inner wall of the mold. Due to the support structure, the connector 12 can maintain a stable state during casting.
  • Injection molding is a method of product production and shaping, usually using thermoplastic materials. Injection molding can also be divided into injection molding and die casting. Thermoplastic plastics or thermosetting materials are made into plastic products of various shapes using plastic molding molds. Injection molding is achieved through injection molding machines and molds.
  • the connecting member 12 can be connected to the heat exchange member 20 when in use. After the connection, the current collecting channel of the current collecting member 11 and the heat exchange channel of the heat exchange member 20 are connected to form a guide channel.
  • the current collecting part 11 provided in the present application is prepared in the form of injection molding, while the traditional current collecting component 10 is prepared as a whole in the form of metal processing and turning.
  • the current collecting component 10 of the present application is not only simple and quick in production method, reducing the processing difficulty, but also greatly improves the efficiency and reduces the cost to a certain extent. Since the connecting part 12 and the current collecting part 11 form an integrated structure, the connecting part 12 and the current collecting part 11 are cast as a whole by integral injection molding, which is very convenient and quick to operate. After the casting of the current collecting part 11 is completed, the connecting part 12 is also formed on the current collecting part 11, and this form makes the connection between the connecting part 12 and the current collecting part 11 have a better degree of connection and better stability.
  • the current collecting member 11 may be a thermoplastic material, which may be one or more of ABS material, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyoxymethylene, polycarbonate, and polyamide.
  • Thermoplastic materials refer to materials that can flow and deform when heated and can maintain a certain shape after cooling. Thermoplastic materials will melt after heating, flow into the mold and then be formed after cooling, and then melt again after heating. The plastic is heated and cooled to produce a reversible change between solid and liquid or between liquid and solid. In this way, the material forming the current collector 11 can be reused repeatedly, further saving costs.
  • the thermoplastic material can be acrylonitrile butadiene styrene copolymer (ABS), which is a thermoplastic polymer structural material with high strength, good toughness and easy processing.
  • ABS acrylonitrile butadiene styrene copolymer
  • ABS has excellent mechanical properties, excellent impact strength and can be used at extremely low temperatures; ABS has excellent wear resistance, good dimensional stability and oil resistance.
  • This embodiment provides materials that can be used for the current collecting member 11.
  • the current collecting member 11 that meets the requirements can be obtained by injection molding using the provided materials, so that the current collecting member 11 can maintain a certain strength and save a certain cost.
  • a limiting structure is provided between the current collecting member 11 and the connecting member 12.
  • the limiting structure is connected to the connecting piece 12 .
  • the limiting structure is a structure that prevents the two from separating and strengthens the firmness between the two.
  • a concave-convex matching structure is formed between the limiting structure and the current collecting member 11, which is equivalent to a locking position, so that the two can be prevented from separating.
  • the limiting structure provided in this embodiment ensures the firmness of the connection between the connecting member 12 and the current collecting member 11 .
  • the limiting structure includes a protrusion 118 and a recess 119, the protrusion 118 is arranged on one of the connector 12 and the current collecting member 11, the recess 119 is arranged on the other of the connector 12 and the current collecting member 11, and the protrusion 118 is embedded in the recess 119 to connect the current collecting member 11 with the connector 12.
  • the convex portion 118 is a protruding portion relative to the outer surface of the connector 12 and the inner surface of the current collecting member 11, and the concave portion 119 is another concave portion relative to the outer surface of the connector 12 and the inner surface of the current collecting member 11.
  • the convex portion 118 is convexly arranged on the outer surface of the connector 12, and the concave portion 119 is concavely arranged on the inner surface of the current collecting member 111.
  • the current collecting member 11 covers at least a portion of the connector 12 during the molding process, so that the current collecting member 11 and the connector 12 are combined together after the current collecting member 11 is molded.
  • the convex portion 118 is embedded in the current collecting member 11, so that the inner surface of the current collecting member 11 after molding forms the concave portion 119, thereby realizing the combination of the current collecting member 11 and the connector 12.
  • the structure in which the convex portion 118 and the concave portion 119 cooperate with each other further strengthens the firmness of the connection between the connecting member 12 and the current collecting member 11 .
  • the shape of the protrusion 118 structure can be one or more of a hook shape, a barb shape, a bend shape, etc.
  • the hook shape can be a barb-shaped structure. Or it can be a barb-shaped or a bend-shaped structure.
  • the barb-shaped structure is an inverted pointed structure, and its effect is the same as that of the hook-shaped structure.
  • the bend-shaped structure can be an L-shaped bend, a T-shaped bend, an S-shaped structure, or a continuous wave shape.
  • the shape of the protrusion 118 provided in this embodiment can further increase the firmness of the connection.
  • the concave portion 119 is one or more of a hook-shaped notch, a barb-shaped notch, and a bent notch.
  • the shape of the concave portion 119 matches the shape of the convex portion 118.
  • the specific form of the concave portion 119 structure provided in this embodiment also plays a role in further strengthening the firmness of the connection.
  • the connecting member 12 is disposed around a port of the current collecting member 11 close to the heat exchange member 20 .
  • the connector 12 is an annular structure, which may be, but not limited to, a circular annular structure, an elliptical annular structure, a square annular structure, a triangular annular structure, etc.
  • the shape of the annular structure may be determined according to the shape of the port of the heat exchanger 20 close to the heat exchanger 20 .
  • the connecting member 12 provided in this embodiment is annular in a certain cross section.
  • a plane is assumed in which the connecting member 12 is cut off and is annular in the plane.
  • the connecting member 12 has a certain thickness in a direction perpendicular to the plane, and the annular body of the connecting member 12 also has a certain width.
  • the effect of configuring the connecting member 12 to be an annular structure is that when the connecting member 12 is connected to the heat exchange member 20, it can be connected to the heat exchange member 20 in the entire circumferential direction, thereby increasing the connection stability and reliability.
  • the collecting channel is provided on the collecting member 11 and is provided at the port close to the collecting member 11 and close to the heat exchanger 20.
  • the collecting channel can be located in the annular structure, that is, the connector 12 is arranged around the opening of the collecting channel. The effect of this is that one side of the connector 12 is sealed because it is cast in the collecting member 11. The other side of the connector 12 can be connected to the heat exchanger 20. When this side is also connected in a sealed manner, the collecting channel and the heat exchange channel of the heat exchanger 20 can be sealed and connected to form the guide channel.
  • the connector 12 and the heat exchanger 20 can be connected in a sealed manner, which can be welded and sealed in the circumferential direction, or a sealing rubber pad or a sealing rubber ring can be arranged between the connector 12 and the heat exchanger 20 for extrusion sealing.
  • the connecting member 12 when the connecting member 12 is annular, the connecting member 12 and the heat exchange member 20 can be connected by welding, and the welding position is on the entire circumference of the connecting member 12 in the annular direction, which can effectively achieve a sealed connection.
  • the limiting structures are evenly distributed along the circumference of the connecting member 12 .
  • the uniform distribution may mean that the intervals between every two adjacent limiting structures along the circumference of the connecting member 12 are equal, so that the connection firmness between each part of the connecting member 12 and the current collecting member 11 can be balanced.
  • the material of the connecting member 12 is the same as that of the heat exchange member 20 , or the material of the connecting member 12 is one or more of aluminum, aluminum alloy, iron, steel or copper.
  • the collecting channel and the heat exchange channel need to be connected, and a sealed connection is required, that is, the heat exchange medium cannot flow out or leak out, so the preferred connection form is welding, so the material of the connector 12 can be selected to be the same as the material of the heat exchanger 20.
  • the heat exchange element 20 is made of metal, so the connecting element 12 can be made of the same metal as the heat exchange element 20. Then they are connected by welding.
  • the optional welding form is brazing. During brazing, the metal to be welded does not melt, but the welding material (welding wire) melts and adheres closely to the material to be welded, and the two materials are connected together by the force between the atoms of the two materials.
  • the material of the connector 12 is one or more of aluminum, aluminum alloy, iron, steel or copper.
  • the heat exchanger 20 often uses a metal material with good thermal conductivity, and aluminum or aluminum alloy is generally the preferred material of the heat exchanger 20 due to its low price and easy processing. Therefore, the material of the connector 12 provided in this embodiment can be aluminum or aluminum alloy, or can also be one or more of iron, steel or copper.
  • the material of the connecting piece 12 provided in this embodiment meets the welding requirements.
  • the connection achieved by welding makes the connection more secure and can achieve a sealed connection.
  • the welding form is easier to operate and has good stability compared to other connection forms, which can improve the processing efficiency.
  • the connector 12 and the heat exchange element 20 are welded together, which can not only increase the firmness of the connection, but also achieve a better relative seal.
  • the current collecting member 11 includes a current collecting portion 111 and a flow delivery portion 112.
  • the current collecting portion 111 is provided with a first flow channel, and the first flow channel is used to connect the heat exchange channel of the heat exchange member 20.
  • the flow delivery portion 112 is connected to the current collecting portion 111, and the flow delivery portion 112 has a second flow channel 117, and the second flow channel 117 is connected to the first flow channel.
  • the first flow channel and the second flow channel 117 form the above-mentioned collecting channel.
  • the collecting member 11 needs to have two functions. First, it needs to have a main line for liquid supply and liquid return. It also needs to have the function of providing heat exchange medium to the corresponding heat exchange member 20, that is, it needs to have a branch that can provide heat exchange medium to the corresponding heat exchange member 20.
  • the current collecting part 11 includes a current collecting part 111 and a flow conveying part 112.
  • the current collecting part 111 can be a plate-like structure, and its specific shape can be determined according to the spatial position where it is to be set, and it has a certain thickness.
  • the current collecting part 111 is used to form a first flow channel.
  • the function to be achieved by the flow conveying part 112 is to provide the above main flow path.
  • the liquid flows into the second flow channel 117, then enters the first flow channel and then enters the heat exchange channel in the heat exchange element 20.
  • the second flow channels 117 between the multiple collectors 11 are connected end to end to form a main flow channel for liquid supply, and at the other end of the heat exchange element 20, the second flow channels 117 of the multiple collectors 11 are connected end to end to form a main flow channel for liquid return.
  • the liquid passing through the heat exchange element 20 flows from the multiple first flow channels at the other end into the second flow channel 117 to achieve liquid return.
  • multiple heat exchangers 20 are usually arranged side by side.
  • the heat exchange channel connects the two ends of the heat exchanger 20 in the length direction
  • both ends of each heat exchanger 20 are connected to a current collector 10.
  • the current collector 10 is connected to the port of the heat exchange channel to achieve the conduction between the first flow channel and the heat exchange channel.
  • the two adjacent current collectors 10 located at the same end of the heat exchanger 20 are also interconnected, that is, the second flow channel 117 of the previous current collector 10 is connected to the second flow channel 117 of the next current collector 10.
  • a collecting assembly 10 is set at both ports, that is, the liquid inlet collecting assembly 10 and the liquid outlet collecting assembly 10 are located at the same end of the heat exchange element 20.
  • the multiple current collecting components 10 located at one end of the heat exchange element 20 can be selected as the liquid inlet form, and the multiple current collecting components 10 located at the other end of the heat exchange element 20 can be selected as the liquid outlet form.
  • the specific flow direction is that the heat exchange medium enters the second flow channels 117 of the multiple current collecting components 10 at the same end that are interconnected, and each current collecting component 10 flows into the heat exchange channel of the corresponding heat exchange element 20 through its own first flow channel after obtaining the heat exchange medium.
  • the heat exchange medium can pass through multiple heat exchange elements 20, and after heat exchange with the battery 100, it flows out from the first flow channels of the multiple current collecting components 10 at the other end through the second flow channel 117 to achieve circulation.
  • the effect of this embodiment is that it provides a liquid supply and liquid return pipeline form, and can allow liquid to enter each collecting member 11 and each heat exchange member 20, thereby realizing a full-range liquid circulation heat exchange system.
  • the flow delivery portion 112 includes a tube body, the inner cavity of the tube body forms a second flow channel 117 , the flow collecting portion 111 is provided with a through hole, the tube body is passed through the through hole, and a through hole connected to the first flow channel is opened on the tube body.
  • the two ends of the tube body are respectively a liquid inlet 115 and a liquid outlet 116.
  • the aperture of the perforation is equal to or slightly larger than the outer diameter of the tube body, and the length of the tube body exposed on both sides of the perforation can be the same or not much different.
  • a first flow channel is opened inside the collecting part 111, and one end of the first flow channel is connected to the inside of the tube body through the through hole. The other end of the first flow channel is used to connect to the heat exchange channel of the heat exchange element 20, so that conduction can be achieved after the connection.
  • the pipe body is a through-length pipe, which is arranged on the collecting part 111 through perforations, has a stable and reliable structure, and realizes effective communication through the through holes.
  • the flow delivery portion 112 includes a first connector and a second connector connected to the collecting portion 111 , the first connector has a first channel, the second connector has a second channel, and the first channel and the second channel are connected to form a second flow channel 117 .
  • the flow delivery portion 112 may not be an integral pipeline of full length, but may include a first connector and a second connector, both of which are hollow structures.
  • a perforation may also be provided on the collecting portion 111, and the first connector and the second connector are connected to both sides of the perforation.
  • the first channel and the second channel may form the second flow channel 117 together with the perforation, or the first channel and the second channel may be directly connected to form the second flow channel 117.
  • the first flow channel may be connected to the through hole to achieve conduction, or the first flow channel may be directly connected to the first channel or the second channel.
  • the effect of this embodiment is that the first connector and the second connector have a simple structure and are easy to prepare, and because the first connector and the second connector are provided, the front and rear current collecting parts 11 can be connected by docking the connectors, thereby facilitating the connection of multiple second channels to form a main circuit.
  • first connector and the second connector are connected to opposite sides of the manifold 111. This facilitates the arrangement and connection of the first connector and the second connector, and can well form the second flow channel 117.
  • the first end of the heat exchanger 20 is connected to the current collecting assembly 10. Since multiple heat exchangers 20 are arranged side by side, a current collecting assembly 10 is arranged at the first end of each heat exchanger 20, and then the second flow channels 117 of two adjacent current collecting assemblies 10 located at the same end side of the heat exchanger 20 are connected to each other to achieve sealed communication. That is, the liquid inlet 115 (or the first connector) of the flow delivery part 112 of the first current collecting assembly 10 is used to connect the water supply system, and the liquid outlet 116 (or the second connector) of the flow delivery part 112 of the last current collecting assembly 10 can be in a closed state.
  • the second end of the heat exchanger 20 is also connected to the current collecting assembly 10, and the current collecting assembly 10 at the second end is connected in the same manner as the current collecting assembly 10 at the first end.
  • the first flow channel of the second end current collecting assembly 10 is used to flow out liquid, and the liquid at this time is the reflux liquid after heat exchange.
  • the reflux liquid is collected on the second flow channel 117 interconnected at the second end and finally refluxed. Then it can flow through the heat exchanger again, and after being cooled by the heat exchanger, it flows in again to continue cooling.
  • the collecting portion 111 includes a main body and a partition portion.
  • the main body has a first flow channel.
  • the partition portion is arranged in the first flow channel and divides the first flow channel into a first flow segment and a second flow segment.
  • the partition portion is provided with a flow hole 113, and the first flow segment and the second flow segment are connected through the flow hole 113.
  • the shapes of the first flow section and the second flow section can be set as needed.
  • the first flow section is connected to the second flow channel 117, so the shape of the first flow section can be set as needed to make it convenient to connect with the second flow channel 117.
  • the shape of the second flow section can also be set as needed.
  • the second flow section can be set as a slot body 114, and the flow hole 113 is connected to the slot body 114. Because the overall aperture of the flow hole 113 is small, and there can be multiple heat exchange channels in the heat exchange element 20, the slot body 114 is set to allow the heat exchange medium to flow into multiple heat exchange channels at the same time.
  • the heat exchange medium can first fill the slot body 114, and the slot body 114 can be connected to multiple heat exchange channels and injected into multiple heat exchange channels at the same time.
  • the slot body 114 of the current collecting component 10 at the other end can collect the heat exchange medium of multiple heat exchange channels.
  • the connecting member 12 can be set in the form of surrounding the slot body 114, so that the slot body 114 is closed, and the heat exchange medium in the slot body 114 will not overflow but directly flow into the heat exchange channel.
  • the flow hole 113 is a channel with a certain inner diameter and a certain extension length.
  • the direction of the flow hole 113 can be set as needed to enable it to inject liquid into the heat exchange channel at a specific position, or to collect the reflux liquid of the heat exchange channel at a specific position.
  • the flow holes 113 of the current collector 11 for liquid inlet and the flow holes 113 of the current collector 11 for liquid outlet may be opened in different directions and lengths.
  • the flow holes 113 of the current collector 11 for liquid inlet may be connected to the heat exchange channel on the upper side of the heat exchange element 20, and the flow holes 113 of the current collector 11 for liquid outlet may be connected to the heat exchange channel on the lower side of the heat exchange element 20. Since the heat exchange channels are connected, when the heat exchange medium flows in the heat exchange element 20, it can fill the entire heat exchange element 20 from top to bottom.
  • the flow holes 113 for liquid inlet and the flow holes 113 for liquid outlet may be respectively arranged at the upper and lower parts of the corresponding surfaces of the two current collectors 11.
  • the first flow section and the second flow section are arranged so that both can select a specific shape according to the form of the second flow channel 117 or the heat exchange channel, making it easier to connect.
  • the present application provides a preparation process for preparing the current collecting assembly 10 described in any of the above embodiments, and the preparation process comprises the following steps:
  • the molten liquid is poured into the second mold so that the molten liquid covers at least a portion of the connecting member 12 , and the mold is removed after the molten liquid solidifies to form the current collecting member 11 .
  • the mold for injection molding may include a movable mold and a fixed mold, and is used with the aid of an injection molding machine.
  • the movable mold can be installed on the movable template of the injection molding machine
  • the fixed mold can be installed on the fixed template of the injection molding machine.
  • the movable mold and the fixed mold are closed to form a pouring system and a cavity.
  • the movable mold and the fixed mold are separated to remove the injection molded part.
  • the connector 12 can be pre-embedded and positioned in the cavity before pouring to form an integral pouring. After pouring, wait for a certain period of time, and then open the mold to obtain the current collecting assembly 10 provided in this embodiment.
  • This embodiment provides specific implementation steps for preparing the current collecting assembly 10.
  • the preparation method is simple and easy to operate, which reduces the difficulty of preparing the current collecting assembly 10 and saves costs.
  • the above-mentioned current collecting assembly 10 can be obtained through the preparation process provided in this embodiment, and compared with the processing method of the current collecting assembly 10 in the prior art, this preparation process has low processing difficulty, high processing efficiency, and reduces the cost to a certain extent.
  • the current collecting part 11 after demolding includes a flow delivery part 112 and a flow collecting part 111, which are used to form a second flow channel 117 and a first flow channel respectively.
  • the flow delivery part 112 may be a tube body or two connectors. Therefore, in some cases, in order to achieve further refined processing of the current collecting part 11, the ends of the tube body or the two connectors may be processed by machining after demolding, so that sealing parts such as sealing sleeves or connecting sleeves can be connected to meet the use requirements.
  • the first flow channel can be cast by injection molding, and some first flow channels with special shapes can also be completed by machining after injection molding.
  • the present application provides a heat exchange device, comprising the current collecting assembly 10 provided in any one of the above embodiments.
  • the heat exchange device may include a liquid supply system, which may specifically be some pipes and a pump body, and may also include a return water pipe and a heat exchanger, etc., and the heat exchange element 20 is also a part of the heat exchange device.
  • the heat exchange device includes the collecting assembly 10 provided in this embodiment, which can reduce the difficulty of preparing the heat exchange device and save costs.
  • the present application provides a battery 100, the battery 100 includes the heat exchange device provided in the above embodiment.
  • the manufacturing cost of the battery 100 is reduced, and the difficulty of manufacturing the battery 100 is reduced.
  • the present application provides an electric device, including the battery 100 provided in the above embodiment, thereby reducing the difficulty and cost of manufacturing the electric device.

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Abstract

本申请适用于电池技术领域，提供了一种集流组件及其制备工艺、换热装置、电池及用电设备，集流组件包括集流件和连接件，集流件为非金属件，连接件为金属件，集流件和所述连接件为一体成型构件，集流件通过连接件连接换热件。旨在降低换热设备的加工难度，并且能够适当的降低成本。

Description

集流组件及其制备工艺、换热装置、电池及用电设备
本申请要求于2024年01月04日提交国家知识产权局、申请号为202410012732.6、申请名称为“集流组件及其制备工艺、换热装置、电池及用电设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于电池技术领域，尤其涉及一种集流组件及其制备工艺、换热装置、电池及用电设备。
背景技术
一些设备或者器件在工作的时候需要维持合适的工作温度，以保持工作的稳定性和持续性，特别是电池，随着电池的应用越来越广泛，电池的温度控制成为必须要解决的问题，所以一些换热装置便配置在电池上，以实现对电池的温度进行控制。
换热装置通常采用换热介质实现热量传递，而实现换热介质的传输就需要用到一些能够起到导流或者集流的组件，从而对各个结构进行供液或者回液操作。
通常地，用于集流的组件的制作常采用将金属型材进行割切或车削等形式，不仅加工难度大，而且成本较高。
发明内容
鉴于上述问题，本申请提供一种集流组件及其制备工艺、换热装置、电池及用电设备，旨在降低集流组件的加工难度，并且能够适当的降低成本。
技术解决方案
第一方面，本申请提供了一种集流组件，所述集流组件包括集流件和连接件，所述集流件为非金属件，所述连接件为金属件，所述集流件和所述连接件为一体成型构件，所述集流件通过所述连接件连接换热件。集流组件包括集流件和连接件，集流件为非金属件，连接件为金属件，集流件和连接件可以分别采用一体成型工艺制成，连接件可以在集流件的成型过程中与集流件结合在一起，也可以在集流件成型后与集流件连接在一起，而不需要对集流组件整体采用车削加工的形式制作，有效简化了集流组件的加工工艺，提高了集流组件的生产效率，降低了集流组件的生产成本。
在第一方面的一些实施例中，所述集流件为注塑成型构件，所述集流件包裹所述连接件的至少部分，以使所述集流件与所述连接件相连接。集流件采用注塑的形式制备，而传统的集流组件整体采用金属加工车削的形式制备，本申请的集流组件不仅在制作方式上简单快捷，降低了加工难度，而且大大提高了效率，并且在一定程度上降低了成本，且由于连接件与集流件之间形成为一体式结构，所以连接件与集流件之间采用了整体注塑浇筑的形式，操作起来十分的方便快捷，当集流件浇筑完成之后，则连接件也便形成在集流件上，并且这种形式使得连接件与集流件之间具有更好的连接牢固程度，稳定性更好。
在第一方面的一些实施例中，所述集流件为热塑性材料件。
在第一方面的一些实施例中，所述热塑性材料件为ABS材料件、聚乙烯件、聚丙烯件、聚氯乙烯件、聚苯乙烯件、聚甲醛件、聚碳酸酪件、聚酰胺件中的一种或多种。利用所提供的材料进行注塑可得到符合要求的集流件，使得集流件能够保持一定的强度，并且能够节约一定的成本。
在第一方面的一些实施例中，所述集流件与所述连接件之间设有限位结构，所述集流件通过所述限位结构连接所述连接件。限位结构保证了连接件与集流件之间连接的牢固程度。
在第一方面的一些实施例中，所述限位结构包括凸部和凹部，所述凸部设置于所述连接件和所述集流件中的一个，所述凹部设置于所述连接件和所述集流件中的另一个，所述凸部嵌设于所述凹部，以使所述集流件与所述连接件相连接。采用凸部和凹部相互配合的结构，进一步地加强了连接件与集流件之间连接的牢固程度。
在第一方面的一些实施例中，所述凸部的形状为钩状、倒刺状、弯折状中的一种或多种。凸部的形状可以进一步地增加连接的牢固性。
在第一方面的一些实施例中，所述凹部为钩状凹口、倒刺状凹口、弯折状凹口中的一种或多种。凹部的具体形式也起到了进一步加强连接的牢固程度的作用。
在第一方面的一些实施例中，所述连接件环设于所述集流件靠近所述换热件的端口。在连接件与换热件进行连接的时候，可以在整个环周方向上均与换热件进行连接，增加了连接稳定性和可靠性。
在第一方面的一些实施例中，所述限位结构沿所述连接件的周向均匀分布。使得连接件各部分与集流件之间保持均衡的连接牢固程度。
在第一方面的一些实施例中，所述连接件的材质与所述换热件的材质相同，或者，所述连接件的材质为铝、铝合金、铁、钢或铜中的一种或多种。连接件的材质，满足了焊接需求，通过焊接的形式实现连接使得连接的更加牢固，可实现密封连接，并且焊接的形式相对其它连接形式更易操作，稳定性好，可提高加工效率。
在第一方面的一些实施例中，所述连接件与所述换热件相焊接。既可以增加连接的牢固程度，又能较好的实现相对密封。
在第一方面的一些实施例中，所述集流件包括：
所述集流件包括集流部和输流部，所述集流部上设有第一流道，所述第一流道用于连通换热件的换热通道，所述输流部连接于集流部上，所述输流部具有第二流道，所述第二流道与所述第一流道相连通。提供了供液回液的管路形式，并且能够使液体进入到每个集流件内以及每个换热件内，实现了全方位的液体循环换热系统。
在第一方面的一些实施例中，所述输流部包括管体，所述管体的内腔形成所述第二流道，所述集流部上设有穿孔，所述管体穿设于所述穿孔内，于所述管体上开设连通所述第一流道的贯穿孔。管体为通长的管道，其通过穿孔设置在集流部上，结构稳定可靠，并且通过贯穿孔实现了有效连通。
在第一方面的一些实施例中，所述输流部包括连接于所述集流部上的第一连接头和第二连接头，所述第一连接头具有第一通道，所述第二连接头具有第二通道，所述第一通道与所述第二通道相连通形成所述第二流道。第一连接头和第二连接头的结构简单，易制备，并且由于设置了第一连接头和第二连接头，所以前后两集流件之间可通过连接头的对接实现导通，从而方便多个第二通道的连通形成主管路。
在第一方面的一些实施例中，所述第一连接头和所述第二连接头连接于所述集流部的相对两侧。这样能够形成第二通道，设置更加简单方便。
在第一方面的一些实施例中，所述集流部包括主体部和间隔部，所述主体部具有所述第一流道，所述间隔部设置于所述第一流道内并将所述第一流道间隔形成第一流段和第二流段，所述间隔部开设有过流孔，所述第一流段和所述第二流段通过所述过流孔相连通。设置了第一流段和第二流段，两者的形状可根据需要设置，从而能够方便地分别连通第二流道和换热通道。
第二方面，本申请还提供了一种制备工艺，用于制备上述任一项实施例提供的所述的集流组件，包括以下步骤：
将所述连接件放置于第一模具内进行成型；
将成型后的所述连接件放置于第二模具内；
向所述第二模具内浇筑融液，以使所述融液包裹所述连接件的至少部分，待所述融液固化形成所述集流件后脱模。制备方法简单易操作，降低了集流组件的制备难度，节约了成本。
第三方面，本申请还提供了一种换热装置，所述换热装置包括换热件和上述任一项实施例提供的所述的集流组件，所述换热件与所述连接件相连接。可降低换热装置的制备难度以及可节约成本。
第四方面，本申请还提供了一种电池，所述电池包括上述实施例提供的所述的换热装置。当电池配置有本申请中换热装置之后，也使得电池的制作成本降低，并且降低了电池的制备难度。
第五方面，本申请还提供了一种用电设备，所述用电设备包括上述实施例提供的所述的电池。降低了用电设备的制备难度以及降低了制备成本。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
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集流组件的立体结构示意图；
图3为图2中集流组件的俯视图；
图4为图2中集流组件的仰视图；
图5为图2中集流组件的左视图；
图6为图2中集流组件的右视图；
图7为图2中集流组件的主视图；
图8为图2中集流组件的后视图；
图9为本申请一些实施例的连接件的立体结构示意图；
图10为本申请一些实施例提供的电池的结构示意图；
图11为本申请又一些实施例提供的连接件的结构示意图；
图12为本申请再一些实施例提供的连接件的结构示意图。
具体实施方式中的附图标号如下：
1000、车辆；
100、电池；200、控制器；300、马达；
10、集流组件；11、集流件；12、连接件；
111、集流部；112、输流部；113、过流孔；114、槽体；115、进液部；116、出液部；117、第二流
道；118、凸部；119、凹部；
20、换热件。
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，电池的应用越加广泛。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。
为了满足不同的电力需求，电池可以包括多个电池单体，其中，多个电池单体之间可以串联或并联或混联，混联是指串联和并联的混合。可选地，多个电池单体可以先串联或并联或混联组成电池模块，多个电池模块再串联或并联或混联组成电池。也就是说，多个电池单体可以直接组成电池，也可以先组成电池模块，电池模块再组成电池。电池再进一步设置于用电设备中，为用电设备提供电能。
电池单体可以为但不仅限于锂离子二次电池、锂离子一次电池、锂硫电池、钠锂离子电池、钠离子电池或镁离子电池等，本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体一般按封装的方式分成三种：柱形电池单体、方体方形电池单体和软包电池单体。
任意形状或者采用任意形式连接的电池，在电池的使用过程中，电芯都会产生热量，如果这些热量过高会对电池的性能及使用寿命造成不利影响，同样地，在低温环境中，如果电池的温度过低，也会对电池的性能及使用寿命造成不利影响。在相关技术中，通常在电池的内部设置换热装置来对电池中的电池单体的温度进行控制。
换热装置通常是通过换热介质作为热量交换载体，利用液体泵和循环管路完成换热介质在电池的内部的流动，分为直接接触换热方式和间接接触换热方式。直接接触换热方式是将电池组直接浸在换热介质中；间接接触换热方式是通过换热件与电池单体或者电池模组直接接触，以使换热件内的换热介质吸收电池单体的热量或者将热量传递至电池单体。
在使用过程中，例如换热介质流动通过上述换热件，从而带走电池单体上的热量或者将热量传递至电池单体，以将电池单体的温度控制在合适范围内。
在实际操作的时候，换热件通常设置于相邻两个电池单体之间或者相邻两个电池模组之间，这样有利于对电池单体的热量的传递。所以基于这种情况，会用到多个换热件，需要同时对多个换热件提供供液以及回液通道，在这种情况下，就要用到集流组件。所以换热装置一般包括换热件、集流组件和液体泵等。
在相关技术中，集流组件通常采用金属型材制作而成，金属型材一般为长条状结构，需将其切割成符合所需长度的单体，然后再将单体进行车削加工。这种形式的加工难度较大，不仅大大降低了工作效率而且造成了较大的成本。
基于上述考虑，本申请实施例提供了一种集流组件，以在一定程度上降低加工难度，并且能够适当降低加工成本。
本申请实施例所提供的集流组件包括集流件和连接件，集流件为非金属件，连接件为金属件，集流件和连接件可以分别采用一体成型工艺制成，连接件可以在集流件的成型过程中与集流件结合在一起，也可以在集流件成型后与集流件连接在一起，而不需要对集流组件整体采用车削加工的形式制作，有效简化了集流组件的加工工艺，提高了集流组件的生产效率，降低了集流组件的生产成本。
上述集流组件可以应用于各种具有流体输送功能的装置中，如换热装置、供水装置等。下面以集流组件应用于电池中的换热装置为例进行说明。
本申请实施例所公开的电池可应用于使用该电池作为电源的用电设备中，其中，用电设备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，以本申请实施例提供的用电设备为车辆1000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1000的结构示意图。车辆1000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1000的内部设置有电池100，电池100可以设置在车辆1000的底部或头部或尾部。电池100可以用于车辆1000的供电，例如，电池100可以作为车辆1000的操作电源。车辆1000还可以包括控制器200和马达300，控制器200用来控制电池100为马达300供电，例如，用于车辆1000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100不仅可以作为车辆1000的操作电源，还可以作为车辆1000的驱动电源，代替或部分地代替燃油或天然气为车辆1000提供驱动动力。
在本申请的一些实施例中，电池100可以包括箱体、电池单体和换热装置，电池单体容纳于箱体内。其中，箱体用于为电池单体提供容纳空间，箱体可以采用多种结构。
电池单体可以为二次电池或一次电池，其中，二次电池是指在电池单体放电后可通过充电的方式使活性材料激活而继续使用的电池单体，一次电池是指在电池单体的电能耗尽后无法通过充电的方式使活性材料激活而继续使用的电池单体。电池单体还可以是锂离子电池、钠离子电池、钠锂离子电池、锂金属电池、钠金属电池、锂硫电池、镁离子电池、镍氢电池、镍镉电池、铅蓄电池等，但不局限于此。电池单体可以为圆柱形电池单体、棱柱电池单体、软包电池单体或其它形状的电池单体，棱柱电池单体包括方壳电池单体、刀片形电池单体、多棱柱电池，多棱柱电池例如为六棱柱电池等，本申请没有特别的限制。
在一些实施例中，换热装置可以包括换热件20、集流组件10以及驱动流动的泵体等。
集流组件10能够将多个换热件20连通成互通的结构，便于供液和回液，使多个换热件20形成整体的一套换热装置。集流组件10具有集流通道，集流通道用于连通换热件20的换热通道。
换热件20是用于电池100中的电池单体或者电池模组相接触以进行热量交换的部件。可以理解地，在换热件20的内部具有换热通道，换热介质可在换热通道内循环流动，以带走电池单体所产生的热量或者将热量传递至电池单体。换热件20的数量可以为多个，相邻两个换热件20可通过上述集流组件10相连接，以使相邻两个换热件20的换热通道相连通。
根据本申请的一些实施例，请一并参照图2-图8，提供了一种集流组件10，集流组件10包括集流件11和连接件12，集流件11为非金属件，连接件12为金属件，集流件11和连接件12为一体成型构件，集流件11通过连接件12连接换热件20。
集流件11为集流组件10的主体部件。可以理解地，集流件11的内部形成有集流通道，集流通道与换热件20的换热通道相连通，以实现换热介质的供液功能以及回液功能。集流件11为非金属件，即集流件11采用非金属材料制成，非金属材料可以为但不仅限于塑料、陶瓷、玻璃等。集流件11采用一体成型工艺制成，例如，在集流件11的材质为塑料的情况下，集流件11可以采用注塑成型工艺制成。
连接件12为用于连接集流件11和换热件20的部件。可以理解地，连接件12的内部形成有连通通道，在连接件12连接于集流件11与换热件20的情况下，集流件11的集流通道通过连接件12的连通通道连通换热件20的换热通道，以使换热介质能够从换热件20的换热通道经过连接件12的连接通道流动至集流件11的集流通道或者从集流件11的集流通道经过连接件12的连接通道流动至换热件20的换热通道。
通常地，换热件20为了提高换热效率，通常采用导热效果较好的金属材质，由于本申请实施例提供的连接件12用于与换热件20相连接，优选为焊接，所以本申请实施例提供的连接件12为金属件，即连接件12采用金属材料制成，金属材料可以为但不仅限于铝、铝合金、铜、铁、钢、不锈钢等。连接件12的材质与换热件20的材质可以相同，也可以不同。
集流件11通过连接件12连接换热件20，换言之，连接件12连接于集流件11与换热件20之间。在一些实施例中，集流件11在成型过程中包覆连接件12的至少部分，以使集流件11与连接件12在集流件11成型后结合在一起。在另一些实施例中，集流件11和连接件12独立成型后连接在一起，集流件11与连接件12之间的连接方式可以为但不仅限于紧固连接、粘接等。连接件12与换热件20之间的连接方式可以为但不仅限于焊接、紧固连接、粘接等。
请参阅图10，在一些实施例中，换热件20的换热通道具有进液口和出液口，集流件11通过连接件12连接于换热件20的进液口处，在换热件20的数量为多个的情况下，集流组件10的数量也为多个，多个集流组件10的集流件11依次连通。
请继续参阅图10，在另一些实施例中，换热件20的换热通道具有进液口和出液口，集流件11通过连接件12连接于换热件20的出液口处，在换热件20的数量为多个的情况下，集流组件10的数量也为多个，多个集流组件10的集流件11依次连通。
请继续参阅图10，在又一些实施例中，换热件20的换热通道具有进液口和出液口，一个集流件11通过一个连接件12连接于换热件20的进液口处，另一个集流件11通过另一个连接件12连接于换热件20的出液口处，在换热件20的数量为多个的情况下，集流组件10的数量也为多个，连接于换热件20的进液口处的多个集流件11依次连通，连接于换热件20的出液口处的多个集流件11依次连通。
本申请实施例所提供的集流组件10包括集流件11和连接件12，集流件11为非金属件，连接件12为金属件，集流件11和连接件12可以分别采用一体成型工艺制成，连接件12可以在集流件11的成型过程中与集流件11结合在一起，也可以在集流件11成型后与集流件11连接在一起，而不需要对集流 组件10整体采用车削加工的形式制作，有效简化了集流组件10的加工工艺，提高了集流组件10的生产效率，降低了集流组件10的生产成本。
在一些实施例中，集流件11可以为塑料件，集流件11为注塑成型构件，集流件11包裹连接件12的至少部分，以使集流件11与连接件12相连接。
具体地，本实施例提供的集流件11采用通过注塑的形式浇筑成型，而连接件12可以选择在集流件11浇筑的时候部分浸入浇筑液内待成型后实现连接。集流件11的注塑一般借助于模具实现，可以根据集流件11需要浇筑成的形状而事先设计模具的形状，而后向模具内设置连接件12，然后向模具内浇筑热塑性材料，充满模具的内部，待冷却成型后，打开模具脱模，则可形成集流组件10，并能够形成集流件11上的集流通道结构。
集流件11的浇筑需要借助于模具实现，具体为往模具中浇筑热塑材料，然后等其冷却，由于连接件12与集流件11为一体式结构，所以可选择将连接件12与集流件11采用一体式浇筑的形式，具体为，集流件11通过模具进行浇筑成型，连接件12预埋于模具中以与集流件11浇筑成一体式结构。
模具可为用于浇筑热塑性材料的专用模具。模具的内腔形状可以根据集流件11的形状而设计。连接件12预埋于模具中，也就是在浇筑之前首先将连接件12进行定位，使其处于模具的内腔中，当浇筑的时候则浇筑的热塑性材料与连接件12可形成一体式结构。
需要说明的是，集流件11包裹连接件12的至少部分，也就是连接件12需要露出一部分用于与换热件20相互连接。连接件12在模具中的预埋位置需要根据要求定位，不可被热塑材料淹没，其至少在浇筑成型之后在集流件11的表面具有露出的部分这样才能够使其与换热件20进行连接。具体可这样设置，当浇筑完成之后，连接件12的一部分浇筑于集流件11内部，连接件12的另一部分露出于集流件11的外部，在集流件11的表面形成凸台或凸起的阶梯结构，这样方便连接件12连接换热件20。
连接件12在模具中的预埋定位可以采用一些支撑结构来实现连接件12的定位，支撑结构可以选择与集流件11相同的材质，但是需要是冷却成型的状态，这样才具有一定强度满足支撑要求。具体地，支撑结构可以采用杆状结构、环状结构或者是钩状结构，或者是多者的相互结合，可使连接件12呈悬空的状态定位于模具中，尽量不与模具的内壁产生接触，或者当有要求的时候也可以选择与模具的内壁进行接触。由于具有支撑结构则可使连接件12在浇筑的时候保持稳定的状态。
注塑是一种产品生产造型的方法，通常使用热塑材料等。注塑还可分注塑成型模压法和压铸法。将热塑性塑料或热固性料利用塑料成型模具制成各种形状的塑料制品，注塑成型是通过注塑机和模具来实现的。
集流组件10在注塑成型之后，在使用的时候可将连接件12与换热件20进行连接，连接之后则集流件11的集流通道与换热件20的换热通道导通形成导流通道。
本申请提供的集流件11采用注塑的形式制备，而传统的集流组件10整体采用金属加工车削的形式制备，本申请的集流组件10不仅在制作方式上简单快捷，降低了加工难度，而且大大提高了效率，并且在一定程度上降低了成本，且由于连接件12与集流件11之间形成为一体式结构，所以连接件12与集流件11之间采用了整体注塑浇筑的形式，操作起来十分的方便快捷，当集流件11浇筑完成之后，则连接件12也便形成在集流件11上，并且这种形式使得连接件12与集流件11之间具有更好的连接牢固程度，稳定性更好。
在一些实施例中，集流件11可以为热塑性材料件。热塑性材料具体可以为ABS材料、聚乙烯、聚丙烯、聚氯乙烯、聚苯乙烯、聚甲醛，聚碳酸酪，聚酰胺中的一种或多种。
热塑性材料是指，物质在加热时能发生流动变形，冷却后可以保持一定形状的材料。热塑性材料加热后会熔化，可流动至模具冷却后成型，再加热后又会熔化的塑料，运用加热及冷却，使其产生固液或者液固之间的可逆变化。这样使得形成集流件11的材料可以反复利用，进一步节省成本。
可选的，热塑性材料可选择为丙烯腈-丁二烯-苯乙烯共聚物(Acrylonitrile Butadiene Styrene plastic，简称ABS)，ABS材料是一种强度高、韧性好、易于加工成型的热塑型高分子结构材料。ABS材料有优良的力学性能，其冲击强度极好，可以在极低的温度下使用；ABS材料的耐磨性优良，尺寸稳定性好，具有耐油性。
本实施例提供了集流件11可采用的材料，利用所提供的材料进行注塑可得到符合要求的集流件11，使得集流件11能够保持一定的强度，并且能够节约一定的成本。
请参阅图11和图12，在一些实施例中，集流件11与连接件12之间设有限位结构，集流件11通过 限位结构连接连接件12。
具体地，限位结构也就是防止两者进行脱离，加强两者之间牢固程度的结构。当设置了限位结构之后，则限位结构与集流件11之间形成了凹凸配合的结构，相当于卡位，这样能够防止两者分离。
本实施例提供的限位结构保证了连接件12与集流件11之间连接的牢固程度。
在一些实施例中，请参阅图11和图12，限位结构包括凸部118和凹部119，凸部118设置于连接件12和集流件11中的一个，凹部119设置于连接件12和集流件11中的另一个，凸部118嵌设于凹部119，以使集流件11与连接件12相连接。
具体地，凸部118是相对于连接件12的外表面和集流件11的内表面中的一个凸出的部位，凹部119是相对于连接件12的外表面和集流件11的内表面中的另一个凹陷的部位。在一些实施例中，凸部118凸设于连接件12的外表面，凹部119凹设于集流件111的内表面。在一些实施例中，集流件11在成型过程中包覆连接件12的至少部分，以使集流件11与连接件12在集流件11成型后结合在一起，在上述过程中，凸部118嵌设于集流件11内，以使集流件11在成型后其内表面形成凹部119，从而实现将集流件11与连接件12结合在一起。
采用凸部118和凹部119相互配合的结构，进一步地加强了连接件12与集流件11之间连接的牢固程度。
根据本申请的实施例，凸部118结构的形状可以为钩状、倒刺状、弯折状、中的一种或多种。
具体地，钩状可以采用倒钩形结构。或者还可以为倒刺状、弯折状。倒刺状即倒置的尖状结构，其效果与钩状结构相同。弯折状则可以为L形弯折、T形弯折、S形或者连续的波浪形等。
本实施例提供的凸部118的形状可以进一步地增加连接的牢固性。
在一些实施例中，凹部119为钩状凹口、倒刺状凹口、弯折状凹口中的一种或多种。凹部119的形状与凸部118的形状相适配，本实施例提供的凹部119结构的具体形式也起到了进一步加强连接的牢固程度的作用。
在一些实施例中，请参阅图2，连接件12环设于集流件11靠近换热件20的端口。
换言之，如图9，连接件12呈环形结构，环形结构可以为但不仅限于圆环形结构、椭圆环形结构、方环结构、三角环形结构等。环形结构的形状具体可根据换热件20靠近换热件20的端口的形状而定。
本实施例所提供的连接件12为在某一截面上其状态呈现环形，设定一平面连接件12在该平面上被截断，在此平面上呈现环形，在垂直于该平面的方向上连接件12具有一定的厚度，并且该连接件12所呈现的环形本体还具有一定的宽度。
将连接件12设置成环形结构的效果在于，在连接件12与换热件20进行连接的时候，可以在整个环周方向上均与换热件20进行连接，增加了连接稳定性和可靠性。
需要说明的是，集流通道开设在集流件11上并且开设在靠近集流件11靠近换热件20的端口处，当连接件12采用环形的时候，可将集流通道位于环形结构内，即连接件12包绕集流通道的开口设置，这样的效果在于，连接件12的一侧由于浇筑在集流件11内，所以该侧是密封的，连接件12的另一侧可连接换热件20，当此侧也采用密封形式连接的话，则可实现集流通道与换热件20的换热通道之间的密封导通，形成所述导流通道。具体地，连接件12与换热件20之间可以采用密封形式连接，具体可以为在环周方向上进行焊接密封，或者连接件12与换热件20之间还可以设置密封胶垫或者密封胶圈进行挤压密封。
具体地，连接件12为环形的时候，连接件12与换热件20之间可采用焊接的形式连接，其焊接位置为在连接件12环形方向的整个环周上，可有效实现密封连接。
在一些实施例中，请参阅图11和图12，限位结构沿连接件12的周向均匀分布。
具体地，均匀分布可以是每相邻两个限位结构沿连接件12的周向的间隔相等，这样可以使得连接件12各部分与集流件11之间保持均衡的连接牢固程度。
在一些实施例中，连接件12的材质与换热件20的材质相同，或者，连接件12的材质为铝、铝合金、铁、钢或铜中的一种或多种。
具体地，连接件12与换热件20之间在连接的时候，需要将集流通道与换热通道之间实现连通，并且需要密封连接，即换热介质不能够流出或者漏出，所以较优的连接形式为焊接，所以连接件12的材质可选的与换热件20的材质是相同的。
一般的，换热件20的材质为金属，所以连接件12可以相适配的选择与换热件20材质相同的金属， 然后通过焊接的形式连接。可选地焊接形式为钎焊。钎焊时被焊接金属并不融化，而是焊接材料(焊丝)融化，并紧密贴附在被焊接材料上，利用两种材料原子之间的作用力连接在一起。
或者，连接件12的材质为铝、铝合金、铁、钢或铜中的一种或多种。换热件20为了增加导热性，常采用导热效果较好的金属材质，而铝或铝合金由于价格低廉且易于加工，一般为换热件20的首选材质，所以相适配地，本实施例提供的连接件12的材质可以为铝或者铝合金，或者还可以是铁、钢或铜中的一种或者多种。
本实施例所提供的连接件12的材质，满足了焊接需求，通过焊接的形式实现连接使得连接的更加牢固，可实现密封连接，并且焊接的形式相对其它连接形式更易操作，稳定性好，可提高加工效率。
所以相适配的，连接件12与换热件20相焊接，既可以增加连接的牢固程度，又能较好的实现相对密封。
请参阅图2-图8，在一些实施例中，集流件11包括集流部111、输流部112。集流部111上设有第一流道，第一流道用于连通换热件20的换热通道。输流部112连接于集流部111上，输流部112具有第二流道117，第二流道117与第一流道相连通。
第一流道和第二流道117形成上述的集流通道。
具体地，集流件11需要具有两个作用，首先需要具有一个主管路，用于供液和回液之用，还要具备给对应的换热件20提供换热介质的功能，即具有能够给对应换热件20提供换热介质的分支。
为了实现上述功能，本申请提供的集流件11包括集流部111、输流部112。集流部111可以为一个板状结构，其具体形状可根据其所要设置的空间位置而定，其具有一定的厚度。集流部111用于形成第一流道。输流部112所要实现的功能为提供上述主管路。
具体为，液体流入第二流道117，然后进入第一流道从而进入到换热件20内的换热通道。多个集流件11之间的第二流道117首尾相接形成供液的主管路，而换热件20另外一端，多个集流件11的第二流道117首尾相接形成回液的主管路。经过换热件20的液体从另一端的多个第一流道流入到第二流道117内，实现回液。
请参阅图10，在使用的时候多个换热件20通常采用并排设置多个的形式，当换热通道连通换热件20长度方向的两端时，每个换热件20的两端均连接一个集流组件10，在连接的时候，集流组件10连接于换热通道的端口，实现第一流道与换热通道的导通。位于换热件20的同一端的相邻的两个集流组件10之间也是相互连通的，即前一个集流组件10的第二流道117连通下一个集流组件10的第二流道117。通过这样设置可将多个换热件20连通在一起。
或者，当换热通道的两端口可开设在换热件20的同侧端部的时候，则两个端口均设置一个集流组件10，即进液的集流组件10和出液的集流组件10位于换热件20的同一端。
在具体使用的时候以换热通道连通换热件20的两端的情况为例，可选择位于换热件20的一端的多个集流组件10为进液的形式，位于换热件20的另一端的多个集流组件10为出液的形式。具体流向为，换热介质进入同一端的多个集流组件10的相互连通的第二流道117，每个集流组件10获得换热介质之后通过各自的第一流道流入到对应的换热件20的换热通道内，这样换热介质能够经过多个换热件20，经过对电池100的热交换之后从另一端多个集流组件10的第一流道，再经第二流道117流出，实现循环。
所以本实施例的效果在于，提供了供液回液的管路形式，并且能够使液体进入到每个集流件11内以及每个换热件20内，实现了全方位的液体循环换热系统。
请参阅图2，在一些实施例中，输流部112包括管体，管体的内腔形成第二流道117，集流部111上设有穿孔，管体穿设于穿孔内，于管体上开设连通第一流道的贯穿孔。
具体地，管体的两端分别进液部115和出液部116。穿孔的孔径等于或者略大于管体的外径，管体露出于穿孔两侧的长度可相同或者相差不大，在集流部111内部开设第一流道，第一流道的一端通过贯穿孔连通至管体的内部。第一流道的另一端用于连通换热件20的换热通道，这样当连接之后可实现导通。
本实施例的效果在于，管体为通长的管道，其通过穿孔设置在集流部111上，结构稳定可靠，并且通过贯穿孔实现了有效连通。
在另一些实施例中，输流部112包括连接于集流部111上的第一连接头和第二连接头，第一连接头具有第一通道，第二连接头具有第二通道，第一通道与第二通道相连通形成第二流道117。
具体地，输流部112可以并不是通长的整体管道，而是包括第一连接头和第二连接头，两者均为中空结构，此时也可在集流部111上设置穿孔，第一连接头和第二连接头对接于穿孔的两侧，第一通道和第二通道可以与穿孔共同形成第二流道117，或者第一通道、第二通道直接对接形成第二流道117。
第一流道可连通穿孔，实现导通，或者第一流道可直接连通第一通道或第二通道。
本实施例的效果在于，第一连接头和第二连接头的结构简单，易制备，并且由于设置了第一连接头和第二连接头，所以前后两集流件11之间可通过连接头的对接实现导通，从而方便多个第二通道的连通形成主管路。
在一些实施例中，所述第一连接头和所述第二连接头连接于所述集流部111的相对两侧。这样方便了第一连接头和第二连接头的设置，方便了连接，能够很好的形成第二流道117。
对于上述两个实施例提供的输流部112的具体形式，具体使用的时候，如图10，换热件20的第一端与集流组件10相连接，由于为多个换热件20并排设置，所以每个换热件20的第一端均设置一个集流组件10，然后将位于换热件20同一端侧的两个相邻的集流组件10的第二流道117相互连接，实现密封连通。即首个集流组件10的输流部112的进液部115(或第一连接头)用于连接供水系统，末个集流组件10的输流部112的出液部116(或第二连接头)可处于封闭状态。
在换热件20的第二端也连接集流组件10，且第二端的集流组件10与第一端的集流组件10采用相同的连接形式，第二端集流组件10的第一流道用于流出液体，此时的液体为换热后的回流液体，回流液体汇集到第二端相互连通的第二流道117上最终回流。然后可再次流经换热器，通过换热器冷却之后再次流入继续冷却。
请参阅图7，在一些实施例中，集流部111包括主体部和间隔部，主体部具有第一流道，间隔部设置于第一流道内并将第一流道间隔形成第一流段和第二流段，间隔部开设有过流孔113，第一流段和第二流段通过过流孔113相连通。
可以根据需要设置第一流段和第二流段的形状，第一流段与第二流道117相互连通，所以可以根据需要设置第一流段的形状，使其方便的与第二流道117相连通。再者，第二流段也可以根据需要设置形状，具体地，可将第二流段设置成槽体114，过流孔113连通槽体114，因为过流孔113整体孔径较小，而换热件20内的换热通道可为多条，所以为了使换热介质能够同时流至多个换热通道内，而设置了槽体114，可使换热介质先充满槽体114，而槽体114可与多个换热通道连通，进行同时注入至多个换热通道内，另一端的集流组件10的槽体114可收集多个换热通道的换热介质。而连接件12可以包绕槽体114的形式设置，这样实现了槽体114的封闭，槽体114内的换热介质不会溢出而是直接流入到换热通道。
过流孔113为具有一定内径的通道，具有一定的延伸长度。可以根据需要设置过流孔113的方向，使其能够向特定位置处的换热通道注液，或者是收集特定位置处的换热通道的回流液。
具体为，用于进液的集流件11的过流孔113与用于出液的集流件11的过流孔113的开设方向和长度可不同，用于进液的集流件11的过流孔113可连通换热件20的上侧的换热通道，用于出液的集流件11的过流孔113可连通换热件20的下侧的换热通道，由于换热通道之间是连通的，这样当换热介质在换热件20内流通的时候可自上到下充满整个换热件20。具体地，为了方便连通，进液的过流孔113与出液的过流孔113可分别设置在两个集流件11对应面的上部和下部。
根据本申请的实施例，第一流段和第二流段的设置使得两者可以根据第二流道117或者是换热通道的形式而选择特定形状，使得更易连通。
第二方面，本申请提供了一种制备工艺，用于制备上述任一个实施例所述的集流组件10，制备工艺包括以下步骤：
将连接件12放置于第一模具内进行成型；
将成型后的连接件12放置于第二模具内；
向第二模具内浇筑融液，以使融液包裹连接件12的至少部分，待融液固化形成集流件11后脱模。
其中，注塑用的模具可以包括动模和定模两部分，并借助于注塑成型机使用，动模可以安装在注塑成型机的移动模板上，定模可以安装在注塑成型机的固定模板上。在注塑成型时动模与定模闭合构成浇注系统和型腔，开模时动模和定模分离以便取出注塑件。连接件12可以在浇筑之前提前预埋定位在型腔内以形成整体性浇筑。浇筑完毕之后，等待一定的时间，然后开模，则可得到本实施例提供的集流组件10。
本实施例提供了制备集流组件10的具体实施步骤，制备方法简单易操作，降低了集流组件10的制备难度，节约了成本。
通过本实施例提供的制备工艺能够得到上述集流组件10，并且相对现有技术中集流组件10的加工方式，本制备工艺加工难度小，加工效率高，并且在一定程度上降低了成本。
根据本申请提供的实施例，在一些情形下，脱模后的集流件11包括输流部112以及集流部111，两者分别用于形成第二流道117和第一流道，具体的形式可以为输流部112为管体或者为两个连接头。所以在一些情形下，为了实现对集流件11的进一步精细化加工，所以在脱模完成之后还可以通过机加工的形式对管体或者两个连接头的端部进行加工，使得能够连接密封套或者连接套之类的密封件，满足使用要求。第一流道可以通过注塑的形式浇筑成型，对于一些特殊形状的第一流道也可通过注塑之后的机加工完成。
第三方面，本申请提供了一种换热装置，包括上述任一个实施例提供的集流组件10。
换热装置可以包括供液系统，具体可以为一些管路以及泵体，还可以包括回水的管路以及换热器等，而换热件20也属于换热装置的一部分，本换热装置包括本实施例提供的集流组件10，这样可降低换热装置的制备难度以及可节约成本。
第四方面，请参阅图11，本申请提供了一种电池100，电池100包括上述实施例提供的换热装置。当电池100配置有本申请中换热装置之后，也使得电池100的制作成本降低，并且降低了电池100的制备难度。
第五方面，本申请提供了一种用电设备，包括上述实施例提供的电池100。从而也降低了用电设备的制备难度以及降低了制备成本。
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 (21)

  1. 一种集流组件，其特征在于，所述集流组件包括集流件和连接件，所述集流件为非金属件，所述连接件为金属件，所述集流件和所述连接件为一体成型构件，所述集流件通过所述连接件连接换热件。
  2. 如权利要求1所述的集流组件，其特征在于，所述集流件为注塑成型构件，所述集流件包裹所述连接件的至少部分，以使所述集流件与所述连接件相连接。
  3. 如权利要求2所述的集流组件，其特征在于，所述集流件为热塑性材料件。
  4. 如权利要求3所述的集流组件，其特征在于，所述热塑性材料件为ABS材料件、聚乙烯件、聚丙烯件、聚氯乙烯件、聚苯乙烯件、聚甲醛件、聚碳酸酪件、聚酰胺件中的一种或多种。
  5. 如权利要求1-4中的任一项所述的集流组件，其特征在于，所述集流件与所述连接件之间设有限位结构，所述集流件通过所述限位结构连接所述连接件。
  6. 如权利要求5所述的集流组件，其特征在于，所述限位结构包括凸部和凹部，所述凸部设置于所述连接件和所述集流件中的一个，所述凹部设置于所述连接件和所述集流件中的另一个，所述凸部嵌设于所述凹部，以使所述集流件与所述连接件相连接。
  7. 如权利要求6所述的集流组件，其特征在于，所述凸部的形状为钩状、倒刺状、弯折状中的一种或多种。
  8. 如权利要求6所述的集流组件，其特征在于所述凹部为钩状凹口、倒刺状凹口、弯折状凹口中的一种或多种。
  9. 如权利要求5-8中的任一项所述的集流组件，其特征在于，所述连接件环设于所述集流件靠近所述换热件的端口。
  10. 如权利要求9所述的集流组件，其特征在于，所述限位结构沿所述连接件的周向均匀分布。
  11. 如权利要求1-10中的任一项所述的集流组件，其特征在于，所述连接件的材质与所述换热件的材质相同，或者，所述连接件的材质为铝、铝合金、铁、钢或铜中的一种或多种。
  12. 如权利要求1-11中的任一项所述的集流组件，其特征在于，所述连接件与所述换热件相焊接。
  13. 如权利要求1-12中的任一项所述的集流组件，其特征在于，所述集流件包括集流部和输流部，所述集流部上设有第一流道，所述第一流道用于连通换热件的换热通道，所述输流部连接于集流部上，所述输流部具有第二流道，所述第二流道与所述第一流道相连通。
  14. 如权利要求13所述的集流组件，其特征在于，所述输流部包括管体，所述管体的内腔形成所述第二流道，所述集流部上设有穿孔，所述管体穿设于所述穿孔内，于所述管体上开设连通所述第一流道的贯穿孔。
  15. 如权利要求13所述的集流组件，其特征在于，所述输流部包括连接于所述集流部上的第一连接头和第二连接头，所述第一连接头具有第一通道，所述第二连接头具有第二通道，所述第一通道与所述第二通道相连通形成所述第二流道。
  16. 如权利要求15所述的集流组件，其特征在于，所述第一连接头和所述第二连接头连接于所述集流部的相对两侧。
  17. 如权利要求15所述的集流组件，其特征在于，所述集流部包括主体部和间隔部，所述主体部具有所述第一流道，所述间隔部设置于所述第一流道内并将所述第一流道间隔形成第一流段和第二流段，所述间隔部开设有过流孔，所述第一流段和所述第二流段通过所述过流孔相连通。
  18. 一种制备工艺，用于制备如权利要求1-17中的任一项所述的集流组件，其特征在于，所述制备工艺包括以下步骤：
    将所述连接件放置于第一模具内进行成型；
    将成型后的所述连接件放置于第二模具内；
    向所述第二模具内浇筑融液，以使所述融液包裹所述连接件的至少部分，待所述融液固化形成所述集流件后脱模。
  19. 一种换热装置，其特征在于，所述换热装置包括换热件和如权利要求1-17中的任一项所述的集流组件，所述换热件与所述连接件相连接。
  20. 一种电池，其特征在于，所述电池包括如权利要求19所述的换热装置。
  21. 一种用电设备，其特征在于，所述用电设备包括如权利要求20所述的电池。
PCT/CN2024/130935 2024-01-04 2024-11-08 集流组件及其制备工艺、换热装置、电池及用电设备 Pending WO2025145779A1 (zh)

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