WO2024156098A1 - 热管理部件、热管理系统、电池及用电装置 - Google Patents

热管理部件、热管理系统、电池及用电装置 Download PDF

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Publication number
WO2024156098A1
WO2024156098A1 PCT/CN2023/073593 CN2023073593W WO2024156098A1 WO 2024156098 A1 WO2024156098 A1 WO 2024156098A1 CN 2023073593 W CN2023073593 W CN 2023073593W WO 2024156098 A1 WO2024156098 A1 WO 2024156098A1
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WO
WIPO (PCT)
Prior art keywords
section
thermal management
confluence
main body
battery
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.)
Ceased
Application number
PCT/CN2023/073593
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English (en)
French (fr)
Inventor
黄小腾
侯跃攀
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
Priority to PCT/CN2023/073593 priority Critical patent/WO2024156098A1/zh
Priority to CN202511335355.0A priority patent/CN121076343A/zh
Priority to CN202380010188.5A priority patent/CN116941103A/zh
Publication of WO2024156098A1 publication Critical patent/WO2024156098A1/zh
Anticipated expiration legal-status Critical
Ceased 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
    • H01M10/61—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
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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 battery technology, and in particular to a thermal management component, a thermal management system, a battery and an electrical device.
  • the battery consists of a box and multiple battery cells contained in the box.
  • the battery As the core component of new energy vehicles, the battery has high requirements in terms of safety and performance. Among them, the battery cells in the battery will generate a lot of heat during the continuous charging and discharging process. Therefore, a thermal management component for adjusting the temperature of the battery cells will be set in the box to alleviate the temperature rise inside the battery.
  • the existing thermal management components occupy a large space inside the battery, resulting in low space utilization inside the battery, which is not conducive to improving the energy density of the battery.
  • the embodiments of the present application provide a thermal management component, a thermal management system, a battery, and an electrical device, which can effectively improve the energy density of the battery.
  • an embodiment of the present application provides a thermal management component, comprising a main body and a confluence portion; the main body extends along a first direction, and a medium flow channel for accommodating a heat exchange medium is formed inside the main body; the confluence portion is arranged at one end of the main body in the first direction, and a confluence cavity is formed inside the confluence portion, and the confluence cavity is connected to the medium flow channel; wherein the confluence portion comprises an integrally formed first section and a second section, the first section extends along the first direction and is connected to the main body, and the second section is bent relative to the first section.
  • the thermal management component is provided with a main body and a confluence part, and the confluence part is arranged at one end of the main body in the first direction, so that the medium flow channel in the main body can be interconnected with the confluence cavity in the confluence part, so that the heat exchange medium can flow into or out of the medium flow channel of the main body through the confluence cavity of the confluence part, so that the heat exchange medium can exchange heat with the battery cells inside the battery through the main body to achieve temperature management inside the battery, wherein, by setting the confluence part as an integrally formed first section and a second section, the first section is connected to the main body and is consistent with the extension direction of the main body, and the second section is set to a structure bent relative to the first section, so that the extension direction of the second section can deviate from the first direction, so that the thermal management component adopting such a structure can effectively save the space occupied by the thermal management component in the first direction while ensuring that there is sufficient connection space between the main body and
  • the main body is a plate-like structure, and the second section is bent relative to the first section to one side of the main body in the thickness direction of the main body.
  • the thermal management component of this structure is convenient for bending the second section during the manufacturing process, which is beneficial to reducing the processing difficulty of the confluence part;
  • the second section can be located on one side of the battery cell in the first direction without occupying space in other directions, which is beneficial to further optimize the internal space of the battery with this thermal management component to improve the energy density of the battery.
  • first segment and the second segment are perpendicular to each other.
  • the second section is bent relative to the first section into a structure in which the second section and the first section are perpendicular to each other, so that the second section and the first direction are perpendicular to each other, so that the space occupied by the second section in the first direction is minimized, which is beneficial to further save the space occupied by the thermal management component in the first direction, so as to improve the internal space utilization of the battery with such a thermal management component.
  • the thermal management component includes two conduits; along the first direction, first sections of the two conduits are respectively connected to two ends of the main body.
  • confluence parts are provided at both ends of the main body in the first direction, so that the two ends of the medium flow channel of the main body in the first direction can be respectively connected with the confluence cavities of the two confluence parts, so that the heat exchange medium can enter the medium flow channel of the main body from the confluence cavity of one confluence part and then flow out from the confluence cavity of another confluence part, so as to realize the circulation of the heat exchange medium in the medium flow channel, which is beneficial to improve the heat exchange capacity of the thermal management component.
  • a plurality of medium flow channels are formed inside the main body, and the plurality of medium flow channels are all connected to the confluence cavity.
  • multiple medium flow channels are arranged inside the main body, and the multiple medium flow channels are connected to the confluence cavity of the confluence part, so that the confluence cavity of the confluence part can play a confluence role, so as to inject heat exchange medium into multiple medium flow channels at the same time or allow the heat exchange medium in multiple medium flow channels to flow out.
  • the confluence portion further includes a connecting tube; the connecting tube is connected to the second section, and the connecting tube is communicated with the confluence cavity.
  • the confluence portion is also provided with a connecting pipe connected to the second section of the confluence portion, and the connecting pipe is communicated with the confluence cavity.
  • the thermal management component adopting this structure is convenient to be connected with other components through the connecting pipe to realize series or parallel connection between multiple thermal management components, which is conducive to reducing the difficulty of assembly between the thermal management component and other components.
  • a protrusion is formed at one end of the second section away from the first section, and the connecting tube is connected to the protrusion.
  • a protrusion is provided at one end of the second section of the confluence part away from the first section, so that the connecting pipe is connected to the protrusion and the connecting pipe is connected to the confluence cavity of the confluence part, thereby facilitating the connection of the connecting pipe to the second section and reducing the difficulty of assembly between the connecting pipe and the second section.
  • the second section is bent relative to the first section to one side of the main body in the second direction
  • the connecting tube is connected to one end of the protrusion in the third direction
  • the first direction, the second direction and the third direction are perpendicular to each other.
  • the connection position between the connecting tube and the protrusion will not occupy additional space of the thermal management component in the first direction, which is beneficial to saving the space occupied by the thermal management component in the first direction.
  • the connecting tube extends along a third direction.
  • the connecting tube as a structure extending along the third direction
  • the extension direction of the connecting tube is perpendicular to the first direction, which is beneficial to optimize the space occupied by the connecting tube in the first direction, so as to further save the space occupied by the thermal management component in the first direction.
  • a notch is formed at one end of the second section away from the first section, the notch and the protrusion are arranged along the third direction, and the notch is used to accommodate at least a portion of the connecting tube.
  • a notch is formed on the end of the second section away from the first section, and the notch and the protrusion are arranged along the third direction, so that the connecting tube connected to the side of the protrusion in the third direction can be accommodated in the notch.
  • it is convenient to connect the connecting tube to the protrusion, which is conducive to reducing the difficulty of assembly.
  • it can effectively save the space occupied by the thermal management component in the first direction and optimize the space occupied by the thermal management component in the third direction.
  • the connecting tube is connected to an end of the protrusion away from the first section.
  • the second section is bent relative to the first section to one side of the main body in the second direction;
  • the connecting tube includes a first tube section and a second tube section, the first tube section connects the protrusion and the second tube section, the first tube section extends along the second direction, and the second tube section extends along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.
  • the connecting pipe is provided with a first pipe section and a second pipe section which are connected to each other.
  • the overall extension direction of the connecting pipe is perpendicular to the first direction, which is beneficial to optimize the space occupied by the connecting pipe in the first direction, so as to save the space occupied by the thermal management component in the first direction.
  • the connecting pipe does not extend beyond both sides of the second segment.
  • the connecting pipe is located between the two sides of the second section in the thickness direction of the second section, so that the connecting pipe does not occupy additional space, which is conducive to optimizing the occupied space of the confluence part.
  • a thickness direction of the second segment is consistent with the first direction.
  • the second section is bent to a structure that is perpendicular to the first section, so that the connecting pipes that do not exceed the two sides of the second section in the thickness direction of the second section will not occupy additional space of the confluence in the first direction, which is beneficial to saving the space occupied by the confluence in the first direction.
  • an embodiment of the present application further provides a thermal management system, comprising a plurality of the above-mentioned thermal management components.
  • the thermal management system is provided with a plurality of thermal management components.
  • the thermal management system can exchange heat with the interior of the battery through the plurality of thermal management components, which is beneficial to improving the thermal management capability of the thermal management system.
  • the thermal management system further includes a delivery pipe; the delivery pipe is in communication with the confluence cavities of the plurality of thermal management components, and the delivery pipe is configured to provide heat exchange medium into the confluence cavity.
  • the thermal management system is also provided with a delivery pipe, and the delivery pipe and the confluence chambers of the plurality of thermal management components are The connection enables the delivery pipe to simultaneously provide heat exchange medium to the confluence cavities of multiple thermal management components, which is beneficial to improving the working efficiency of the thermal management system.
  • the thermal management system also includes a flexible connector; the flexible connector is arranged in a one-to-one correspondence with the confluence portion, the flexible connector connects the second section and the delivery pipe so that the confluence cavity is connected to the delivery pipe, and the flexible connector is configured to allow the delivery pipe to move relative to the second section.
  • the delivery pipe is connected to the second section of the confluence part of the thermal management component through a flexible connector to realize the connection between the confluence cavity and the delivery pipe.
  • the thermal management system adopting this structure can realize the movement of the second section of the delivery pipe relative to the confluence part through the flexible connector, thereby facilitating the assembly of the delivery pipe and the confluence part, and can absorb the assembly tolerance between the delivery pipe and the confluence part through the flexible connector, which is beneficial to improve the assembly accuracy between the delivery pipe and the confluence part, and is beneficial to reduce the assembly difficulty between the delivery pipe and the confluence part.
  • the flexible connection comprises a floating joint or a hose.
  • a floating joint or a hose is used as a flexible connector to connect the delivery pipe and the second section of the confluence part, so that the delivery pipe can move relative to the second section of the confluence part.
  • the confluence portion further includes a connecting tube; the connecting tube is connected to the second section, the connecting tube is communicated with the confluence cavity, and the flexible connector connects the connecting tube and the delivery tube.
  • a connecting tube connected to the confluence cavity is provided on the second section of the confluence part. After the connecting tube is connected to the conveying tube through a flexible connector, the conveying tube and the confluence cavity of the confluence part can be connected.
  • the confluence part with such a structure is beneficial to reducing the difficulty of connecting between the flexible connector and the second section of the confluence part, so as to reduce the difficulty of assembling between the flexible connector and the confluence part.
  • the plurality of thermal management components are arranged along the second direction, the delivery pipe is disposed on one side of the plurality of thermal management components in the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.
  • an embodiment of the present application also provides a battery, comprising a housing, a plurality of battery cells and the above-mentioned thermal management system; the plurality of battery cells are accommodated in the housing; the thermal management system is disposed in the housing, and the thermal management system is configured to manage the temperature of the battery cells.
  • the second section is bent relative to the first section to one side of the main body in the second direction, a plurality of battery cells are arranged along the second direction, a thermal management component is provided between each two adjacent battery cells, and the second direction is perpendicular to the first direction; wherein the main body and the first section are both located on one side of the battery monomer in the second direction, the main body is configured to exchange heat with the battery monomer, and the second section is located on one side of the battery monomer in the first direction.
  • the main body and the first section of the thermal management component are both located on one side of the battery cell in the second direction, so as to realize heat exchange between the main body and the battery cell, and can effectively ensure that there is sufficient connection space between the main body and the first section of the confluence part to ensure connection strength and reliability.
  • the second section of the confluence part is bent to one side of the main body in the second direction relative to the first section, and being located on one side of the battery cell in the first direction, the space occupied by the confluence part in the first direction is saved, which is conducive to optimizing the internal space of the battery, so as to improve the space utilization rate inside the battery, and further can effectively improve the energy density of the battery.
  • an embodiment of the present application further provides an electrical device, comprising the above-mentioned battery, wherein the battery is used to provide electrical energy.
  • FIG1 is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application.
  • FIG2 is an exploded view of a battery structure provided in some embodiments of the present application.
  • FIG3 is a schematic diagram of the structure of a thermal management system provided in some embodiments of the present application.
  • FIG4 is a schematic diagram of the structure of a thermal management component provided in some embodiments of the present application.
  • FIG5 is a partial enlarged view of the thermal management component at A shown in FIG4 ;
  • FIG6 is a cross-sectional view of a thermal management component provided in some embodiments of the present application.
  • FIG7 is an exploded view of the structure of a thermal management component provided in some embodiments of the present application.
  • FIG8 is a partial enlarged view of a portion B of the thermal management component shown in FIG7 ;
  • FIG9 is a schematic diagram of the structure of a thermal management component provided in yet other embodiments of the present application.
  • FIG10 is a partial enlarged view of the thermal management component at C shown in FIG9 ;
  • FIG11 is a partial enlarged view of a portion D of the thermal management system shown in FIG3 ;
  • FIG12 is a schematic diagram of the assembly of a battery thermal management system and a battery cell provided in some embodiments of the present application;
  • FIG. 13 is a partial enlarged view of the E portion after the thermal management system and the battery cell shown in FIG. 12 are assembled with each other.
  • Icon 1000-vehicle; 100-battery; 10-box; 11-first box body; 12-second box body; 20-battery cell; 30-thermal management system; 31-thermal management component; 311-main body; 3111-medium flow channel; 312-convergence; 3121-convergence cavity; 3122-first section; 3123-second section; 3123a-protrusion; 3123b-notch; 3124-connecting pipe; 3124a-first pipe section; 3124b-second pipe section; 32-delivery pipe; 33-flexible connector; 200-controller; 300-motor; X-first direction; Y-second direction; Z-third direction.
  • the terms “installed”, “connected”, “connected”, and “attached” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements.
  • installed should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements.
  • 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 application generally indicates that the associated objects before and after are in an "or" relationship.
  • the battery cell may be a secondary battery.
  • a secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.
  • the battery cell can 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 storage battery, etc., which is not limited in the embodiments of the present application.
  • a battery cell generally includes an electrode assembly.
  • the electrode assembly includes a positive electrode, a negative electrode, and a separator.
  • active ions such as lithium ions
  • the separator is set between the positive electrode and the negative electrode to prevent the positive and negative electrodes from short-circuiting, while allowing active ions to pass through.
  • the positive electrode may be a positive electrode sheet, and the positive electrode sheet may include a positive electrode current collector and a positive electrode active material disposed on at least one surface of the positive electrode current collector.
  • the positive electrode current collector has two surfaces facing each other in its thickness direction, and the positive electrode active material is disposed on either or both of the two facing surfaces of the positive electrode current collector.
  • the positive electrode current collector may be a metal foil or a composite current collector.
  • a metal foil a silver foil may be used. Surface treated aluminum or stainless steel, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium, etc.
  • the composite current collector may include a polymer material base layer and a metal layer.
  • the composite current collector may be formed by forming a metal material (aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).
  • the positive electrode active material may include at least one of the following materials: lithium-containing phosphates, lithium transition metal oxides, and their respective modified compounds.
  • the present application is not limited to these materials, and other traditional materials that can be used as positive electrode active materials for batteries may also be used. These positive electrode active materials may be used alone or in combination of two or more.
  • lithium-containing phosphates may include, but are not limited to, lithium iron phosphate (such as LiFePO4 (also referred to as LFP)), a composite material of lithium iron phosphate and carbon, lithium manganese phosphate (such as LiMnPO4), a composite material of lithium manganese phosphate and carbon, lithium iron manganese phosphate, and at least one of a composite material of lithium iron manganese phosphate and carbon.
  • the negative electrode may be a negative electrode sheet, and the negative electrode sheet may include a negative electrode current collector.
  • the negative electrode current collector can be a metal foil, a foamed metal or a composite current collector.
  • a metal foil aluminum or stainless steel treated with silver, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium, etc. can be used.
  • the foamed metal can be a foamed nickel, a foamed copper, a foamed aluminum, a foamed alloy, or a foamed carbon, etc.
  • the composite current collector can include a polymer material base and a metal layer.
  • the composite current collector can be formed by forming a metal material (copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).
  • a metal material copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.
  • a polymer material substrate such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.
  • the negative electrode sheet may include a negative electrode collector and a negative electrode active material disposed on at least one surface of the negative electrode collector.
  • the negative electrode current collector has two surfaces facing each other in its thickness direction, and the negative electrode active material is disposed on either or both of the two facing surfaces of the negative electrode current collector.
  • the negative electrode active material may be a negative electrode active material for a battery cell known in the art.
  • the negative electrode active material may include at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials, lithium titanate, etc.
  • the material of the positive electrode current collector may be aluminum, and the material of the negative electrode current collector may be copper.
  • the electrode assembly further includes a separator disposed between the positive electrode and the negative electrode.
  • the separator is a separator.
  • the present application has no particular limitation on the type of separator, and any known separator with a porous structure having good chemical stability and mechanical stability can be selected.
  • the main material of the isolation membrane can be selected from at least one of glass fiber, non-woven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramics.
  • the separator is a solid electrolyte, which is disposed between the positive electrode and the negative electrode and serves to transmit ions and isolate the positive and negative electrodes.
  • the battery cell further includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes.
  • an electrolyte which acts as a conductor of ions between the positive and negative electrodes.
  • the present application has no specific restrictions on the type of electrolyte, which can be selected according to needs.
  • the electrolyte can be liquid, gel or solid.
  • the electrode assembly is a wound structure, wherein the positive electrode sheet and the negative electrode sheet are wound into the wound structure.
  • the electrode assembly is a laminate structure.
  • the shape of the electrode assembly can be cylindrical, flat, or polygonal.
  • the electrode assembly is provided with tabs, which can lead current out of the electrode assembly.
  • the tabs include a positive tab and a negative tab.
  • the battery cell may include a housing.
  • the housing is used to encapsulate components such as the electrode assembly and the electrolyte.
  • the housing may be a steel housing, an aluminum housing, a plastic housing (such as polypropylene), a composite metal housing (such as a copper-aluminum composite housing), or an aluminum-plastic film.
  • the battery cell can be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell or a battery cell of other shapes.
  • the prismatic battery cell includes a square shell battery cell, a blade-shaped battery cell, a polygonal battery, such as a hexagonal battery, etc. There is no special limitation in this application.
  • the battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery may be a battery module.
  • the multiple battery cells are arranged and fixed to form a battery module.
  • the battery may be a battery pack, which includes a box and a battery cell, a battery cell or a battery module. Contained in a box.
  • the box body can be used as a part of the chassis structure of the vehicle.
  • part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.
  • the battery may be an energy storage device, which includes an energy storage container, an energy storage cabinet, and the like.
  • the battery cells will generate a lot of heat during the continuous charging and discharging process, which will cause the internal temperature of the battery to rise.
  • the structure of stacking multiple battery cells will aggravate this phenomenon, which will seriously affect the performance and service life of the battery, and even cause a large safety hazard in the use of the battery, which is not conducive to the safety of consumers.
  • a thermal management component is usually set inside the battery.
  • the existing thermal management component is usually composed of a water-cooled plate and a manifold.
  • the water-cooled plate is set between two adjacent battery cells, and a channel for the flow of heat exchange medium is formed inside the water-cooled plate.
  • the manifold is connected to one end of the water-cooled plate in the extension direction of the water-cooled plate and communicated with the channel inside the water-cooled plate to play a confluence role, so that the thermal management component can be connected to the main pipeline for providing heat exchange medium through the manifold to realize the flow of heat exchange medium into or out of the channel of the water-cooled plate.
  • the water-cooling plate and the manifold are usually connected by bonding, welding or clamping, the position where the water-cooling plate and the manifold are connected to each other needs to have a sufficient width to ensure the connection strength and stability between the water-cooling plate and the manifold, so as to reduce the risk of leakage of the heat exchange medium due to damage and cracking of the thermal management component during use.
  • the water-cooling plate needs to be arranged to extend out of the end face of the battery cell in its extension direction and then be connected to the manifold, so that the thermal management component occupies a large space in the extension direction of the water-cooling plate, which is not conducive to optimizing the internal space of the battery, and further causes low space utilization inside the battery, which is not conducive to improving the energy density of the battery.
  • the thermal management component includes a main body and a confluence part. Extending along the first direction, a medium flow channel for accommodating a heat exchange medium is formed inside the main body.
  • the confluence part is arranged at one end of the main body in the first direction, and a confluence cavity is formed inside the confluence part, which is connected to the medium flow channel.
  • the confluence part includes a first section and a second section that are integrally formed, the first section extends along the first direction and is connected to the main body, and the second section is bent relative to the first section.
  • the thermal management component is provided with a main body and a confluence portion, and the confluence portion is provided at one end of the main body in a first direction, so that the medium flow channel in the main body can be interconnected with the confluence cavity in the confluence portion, so that the heat exchange medium can flow into or out of the medium flow channel of the main body through the confluence cavity of the confluence portion, so that heat exchange can be performed with the battery cells inside the battery through the main body to achieve temperature management inside the battery, wherein, by setting the confluence portion as an integrally formed first section and a second section, the first section is connected to the main body and is consistent with the extension direction of the main body, and the second section is set to a structure bent relative to the first section, so that the extension direction of the second section can deviate from the first direction, so that the thermal management component adopting this structure can effectively save the space occupied by the thermal management component in the first direction while ensuring that there is sufficient connection space between
  • the thermal management component disclosed in the embodiment of the present application can be used, but not limited to, in electrical devices such as vehicles, ships or aircraft.
  • a power supply system comprising the thermal management system and batteries disclosed in the present application can be used to form the electrical device, which is conducive to reducing the space occupied by the thermal management component and improving the space utilization rate inside the battery.
  • the embodiment of the present application provides an electric device using a battery as a power source
  • the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc.
  • the electric toy may include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, an electric airplane toy, etc.
  • the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, 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.
  • the vehicle 1000 is provided with a battery 100 inside, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. Battery The battery 100 can be used to power the vehicle 1000, for example, the battery 100 can be used as an operating power source for the vehicle 1000.
  • the vehicle 1000 may also include a controller 200 and a motor 300, wherein the controller 200 is used to control the battery 100 to power the motor 300, for example, to meet the power requirements of the vehicle 1000 during startup, navigation, and driving.
  • 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.
  • Fig. 2 is an exploded view of the structure of a battery 100 provided in some embodiments of the present application.
  • the battery 100 includes a box body 10 and a plurality of battery cells 20, and the battery cells 20 are used to be accommodated in the box body 10.
  • the box body 10 is used to provide an assembly space for the battery cell 20, and the box body 10 can adopt a variety of structures.
  • the box body 10 may include a first box body 11 and a second box body 12, the first box body 11 and the second box body 12 cover each other, and the first box body 11 and the second box body 12 jointly define an assembly space for accommodating the battery cell 20.
  • the second box body 12 can be a hollow structure with one end open, the first box body 11 can be a plate-like structure, and the first box body 11 covers the open side of the second box body 12, so that the first box body 11 and the second box body 12 jointly define an assembly space; the first box body 11 and the second box body 12 can also be hollow structures with one side open, and the open side of the first box body 11 covers the open side of the second box body 12.
  • the box body 10 formed by the first box body 11 and the second box body 12 can be in a variety of shapes, such as a cylinder, a cuboid, etc. Exemplarily, in Figure 2, the box body 10 is a cuboid structure.
  • the battery 100 there may be one or more battery cells 20.
  • the battery 100 includes a plurality of battery cells 20, and the plurality of battery cells 20 may be connected in series, in parallel, or in a mixed connection.
  • a mixed connection means that the plurality of battery cells 20 are both connected in series and in parallel.
  • the plurality of battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the plurality of battery cells 20 may be accommodated in the case 10; of course, the battery 100 may also be a battery module formed by first connecting a plurality of battery cells 20 in series, in parallel, or in a mixed connection, and then the plurality of battery modules may be connected in series, in parallel, or in a mixed connection to form a whole, and then accommodated in the case 10.
  • the battery 100 may also include other structures.
  • the battery 100 may also include a busbar component for realizing electrical connection between the plurality of battery cells 20.
  • each battery cell 20 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 is not limited thereto.
  • the battery cell 20 can also have a variety of shapes, for example, the battery cell 20 can be cylindrical, flat, rectangular or other shapes.
  • the battery cell 20 is in the shape of a cuboid, the battery cell 20 extends along a first direction X, and a plurality of battery cells 20 are arranged along a second direction Y, the first direction X and the second direction Y are perpendicular to each other, that is, the first direction X is the length direction of the battery cell 20, and the second direction Y is the thickness direction of the battery cell 20.
  • the third direction Z is the height direction of the battery cell 20.
  • FIG. 3 is a schematic diagram of the structure of a thermal management system 30 provided in some embodiments of the present application
  • FIG. 4 is a schematic diagram of the structure of a thermal management component 31 provided in some embodiments of the present application.
  • the battery 100 may also include a thermal management system 30, which is disposed in the housing 10.
  • the thermal management system 30 is used to manage the temperature of the battery cells 20 in the battery 100, so as to cool or heat the battery cells 20, thereby effectively alleviating the temperature rise phenomenon inside the battery 100, so as to improve the safety of the battery 100.
  • the thermal management system 30 may include a plurality of thermal management components 31.
  • the plurality of thermal management components 31 are arranged at intervals, and a thermal management component 31 is arranged between each two adjacent battery cells 20.
  • the thermal management component 31 is configured to perform heat exchange with the battery cell 20 to manage the temperature of the battery cell 20, thereby being able to cool or heat the battery cell 20.
  • the multiple thermal management components 31 of the thermal management system 30 may be connected in series or in parallel.
  • the multiple thermal management components 31 are connected in parallel, and the thermal management system 30 may further include a delivery pipe 32, and the multiple thermal management components 31 are all connected to the delivery pipe 32, so that the delivery pipe 32 can simultaneously provide heat exchange medium to the multiple thermal management components 31 to realize the parallel structure between the multiple thermal management components 31.
  • the multiple thermal management components 31 may also be connected in series, that is, the multiple thermal management components 31 are connected in sequence to realize the series structure between the multiple thermal management components 31.
  • one thermal management component 31 can be directly connected to another thermal management component 31, or can be connected through other components, such as pipes, etc., to achieve a series structure or a parallel structure of multiple thermal management components 31.
  • FIG5 is a partial enlarged view of the A portion of the thermal management component 31 shown in FIG4, and FIG6 is a cross-sectional view of the thermal management component 31 provided in some embodiments of the present application.
  • the present application provides a thermal management component 31, and the thermal management component 31 includes a body portion 311 and a confluence portion 312.
  • the body portion 311 extends in the first direction X, and a medium flow channel 3111 for accommodating a heat exchange medium is formed inside the main body 311.
  • the confluence portion 312 is disposed at one end of the main body 311 in the first direction X, and a confluence cavity 3121 is formed inside the confluence portion 312, and the confluence cavity 3121 is communicated with the medium flow channel 3111.
  • the confluence portion 312 includes an integrally formed first section 3122 and a second section 3123, the first section 3122 extends in the first direction X and is connected to the main body 311, and the second section 3123 is bent relative to the first section 3122.
  • a medium flow channel 3111 is formed inside the main body 311 of the thermal management component 31 .
  • heat exchange medium By injecting a heat exchange medium into the medium flow channel 3111 , heat exchange between the main body 311 and the battery cell 20 can be achieved, so that the thermal management component 31 can manage the temperature of the battery cell 20 .
  • the shape of the main body 311 can be various.
  • the main body 311 is a plate-like structure extending along the first direction X, and the thickness direction of the main body 311 is the same as the second direction Y.
  • the main body 311 can also be a columnar structure extending along the first direction X.
  • the number of medium flow channels 3111 disposed inside the main body 311 can be one or more.
  • FIG. 6 there are multiple medium flow channels 3111 disposed inside the main body 311, and the multiple medium flow channels 3111 are arranged at intervals along the third direction Z, which is conducive to improving the heat exchange capacity between the main body 311 and the battery cell 20.
  • the heat exchange medium may be a gas, such as air or hydrogen, or a liquid, such as water, a salt water solution or liquid nitrogen.
  • the confluence portion 312 is disposed at one end of the main body portion 311 in the first direction X, and a confluence cavity 3121 is formed inside the confluence portion 312, that is, the confluence portion 312 is connected to one end of the main body portion 311 in the first direction X, and the confluence portion 312 is a hollow structure, so that the confluence cavity 3121 inside the confluence portion 312 can be connected to the medium flow channel 3111 of the main body portion 311, thereby playing a confluence role.
  • the confluence portion 312 includes an integrally formed first section 3122 and a second section 3123, wherein the first section 3122 extends along the first direction X and is connected to the main body portion 311, and the second section 3123 is bent relative to the first section 3122. That is, the confluence portion 312 is an integral structure and includes the first section 3122 and the second section 3123 which are arranged at an angle to each other, wherein the first section 3122 is connected to the main body portion 311, and the second section 3123 is arranged at an angle to the first direction X, so that a portion of the confluence cavity 3121 of the confluence portion 312 is located in the first section 3122, and the other portion is located in the second section 3123.
  • the connection method between the first section 3122 and the main body 311 can be various, that is, the main body 311 and the confluence part 312 can be a split structure or an integrated structure. If the main body 311 and the confluence part 312 are split structures, the first section 3122 of the confluence part 312 and the main body 311 can be connected by welding, bonding or clamping; if the main body 311 and the confluence part 312 are an integrated structure, that is, the main body 311 and the confluence part 312 are formed as one piece, then the main body 311 and the confluence part 312 can be made by stamping, casting or extrusion molding.
  • the second section 3123 is bent relative to the first section 3122 to one side of the first section 3122 in the second direction Y, that is, the second section 3123 is located at one side of the first section 3122 in the second direction Y.
  • the structure of the confluence portion 312 is not limited thereto, and in some embodiments, the second section 3123 may also be bent relative to the first section 3122 to one side of the first section 3122 in the third direction Z.
  • the second section 3123 is bent relative to the first section 3122, so that the second section 3123 can be a structure perpendicular to the first section 3122, or a structure in which the second section 3123 is arranged at an obtuse angle or an acute angle with the first section 3122.
  • the second section 3123 is perpendicular to the first section 3122, that is, the second section 3123 extends along the second direction Y, that is, the thickness direction of the second section 3123 is the same as the first direction X.
  • the heat management component 31 is provided with a main body 311 and a confluence portion 312, and the confluence portion 312 is provided at one end of the main body 311 in the first direction X, so that the medium flow channel 3111 in the main body 311 can be communicated with the confluence cavity 3121 in the confluence portion 312, so that the heat exchange medium can flow into or out of the medium flow channel 3111 of the main body 311 through the confluence cavity 3121 of the confluence portion 312, so that the heat exchange medium can be heat exchanged with the battery cell 20 inside the battery 100 through the main body 311, so as to achieve the temperature management of the battery 100, wherein, by providing the confluence portion 312 with the first section 3122 and the second section 3123 formed in one piece, the first section 3122 is connected to the second section 3123, and the heat exchange medium can be heat exchanged with the battery cell 20 inside the battery 100 through the main body 311.
  • the second section 3123 is set to a structure that is bent relative to the first section 3122, so that the extension direction of the second section 3123 can deviate from the first direction X, so that the thermal management component 31 adopting this structure can effectively save the space occupied by the thermal management component 31 in the first direction X while ensuring that there is sufficient connection space between the main body 311 and the first section 3122 of the confluence part 312 to ensure the connection strength and reliability, which is beneficial to optimizing the internal space of the battery 100 with this thermal management component 31, and then can effectively improve the space utilization inside the battery 100, so as to improve the energy density of the battery 100.
  • the main body 311 is a plate-like structure, and the second section 3123 is bent relative to the first section 3122 to one side of the main body 311 in the thickness direction of the main body 311 .
  • the main body 311 is a structure extending along the first direction X, and the thickness direction of the main body 311 is consistent with the second direction Y, so that the second section 3123 of the confluence portion 312 is bent relative to the first section 3122 so that the second section 3123 is located on one side of the main body 311 in the second direction Y.
  • the thermal management component 31 By setting the main body 311 as a plate-like structure and setting the second section 3123 to be bent to one side of the main body 311 in the thickness direction of the main body 311 relative to the first section 3122, the thermal management component 31 with such a structure is convenient for bending the second section 3123 during the manufacturing process, which is beneficial to reducing the processing difficulty of the confluence portion 312; on the other hand, when the main body 311 is set between two stacked battery cells 20 along the thickness direction of the main body 311, the second section 3123 can be located on one side of the battery cell 20 in the first direction X without occupying space in other directions, which is beneficial to further optimize the internal space of the battery 100 having such a thermal management component 31 to improve the energy density of the battery 100.
  • the first section 3122 and the second section 3123 are perpendicular to each other.
  • the first section 3122 of the confluence portion 312 extends along the first direction X
  • the first section 3122 and the second section 3123 are perpendicular to each other, that is, the second section 3123 extends along a direction perpendicular to the first direction X.
  • the second section 3123 is a structure extending along the second direction Y, so that the second section 3123 is perpendicular to the first section 3122, the main body 311 and the first direction X.
  • the second section 3123 By setting the second section 3123 to be bent relative to the first section 3122 into a structure in which the second section 3123 and the first section 3122 are perpendicular to each other, the second section 3123 is made perpendicular to the first direction X, so that the space occupied by the second section 3123 in the first direction X is minimized, which is beneficial to further save the space occupied by the thermal management component 31 in the first direction X, so as to improve the internal space utilization of the battery 100 with such a thermal management component 31.
  • the thermal management component 31 includes two conduits 312 , and along the first direction X, the first sections 3122 of the two conduits 312 are respectively connected to the two ends of the body 311 .
  • the first sections 3122 of the two conduits 312 are respectively connected to the two ends of the main body 311, that is, the two ends of the main body 311 in the first direction X are connected to the conduits 312, and both are structures in which the main body 311 and the first sections 3122 of the conduits 312 are connected.
  • Confluence portions 312 are provided at both ends of the main body portion 311 in the first direction X, so that both ends of the medium flow channel 3111 of the main body portion 311 in the first direction X can be respectively connected to the confluence cavities 3121 of the two confluence portions 312, so that the heat exchange medium can enter the medium flow channel 3111 of the main body portion 311 from the confluence cavity 3121 of one confluence portion 312 and then flow out from the confluence cavity 3121 of the other confluence portion 312, so as to realize the circulation of the heat exchange medium in the medium flow channel 3111, which is beneficial to improve the heat exchange capacity of the thermal management component 31.
  • FIG. 7 is a structural exploded view of a thermal management component 31 provided in some embodiments of the present application
  • FIG. 8 is a partial enlarged view of the thermal management component 31 at B shown in FIG.
  • a plurality of medium flow channels 3111 are formed inside the body portion 311, and the plurality of medium flow channels 3111 are all connected to the confluence cavity 3121.
  • the plurality of medium flow channels 3111 in the main body 311 are arranged at intervals along the third direction Z, and each medium flow channel 3111 extends along the first direction X, so as to facilitate manufacturing and processing, and facilitate the flow of heat exchange medium into or out of the medium flow channel 3111 .
  • both ends of the main body 311 are connected to the confluence part 312
  • the two ends of the multiple medium flow channels 3111 are respectively connected to the confluence chambers 3121 of the two confluence parts 312, that is, one end of the multiple medium flow channels 3111 in the first direction X is connected to the confluence chamber 3121 of one confluence part 312, and the other end of the multiple medium flow channels 3111 in the first direction X is connected to the confluence chamber 3121 of another confluence part 312.
  • the confluence cavity 3121 of the confluence portion 312 can play a confluence role, so as to inject heat exchange medium into the multiple medium flow channels 3111 at the same time or allow the heat exchange medium in the multiple medium flow channels 3111 to flow out.
  • the confluence portion 312 further includes a connecting pipe 3124 , which is connected to the second section 3123 , and the connecting pipe 3124 is in communication with the confluence cavity 3121 .
  • the second section 3123 is connected to a connecting pipe 3124, so that after the confluence cavity 3121 is connected to the connecting pipe 3124, it can be connected to the delivery pipe 32 through the connecting pipe 3124, so that the delivery pipe 32 can transport the heat exchange medium into the confluence cavity 3121, thereby satisfying the flow of the heat exchange medium in the medium flow channel 3111 of the main body 311.
  • connection method of the connecting pipe 3124 and the second section 3123 can be multiple.
  • the connecting pipe 3124 and the second section 3123 are an integrated structure, that is, the connecting pipe 3124 and the second section 3123 are made by an integrated molding process, such as casting, extrusion molding, etc.
  • the connecting pipe 3124 and the second section 3123 can also be a split structure, and the connecting pipe 3124 can be connected to the second section 3123 by means of clamping, bonding or welding.
  • the confluence portion 312 is further provided with a connecting pipe 3124 connected to the second section 3123 of the confluence portion 312.
  • the thermal management component 31 connected to the confluence cavity 3121 with this structure is convenient to be connected with other components through the connecting pipe 3124 to realize series or parallel connection between multiple thermal management components 31, which is conducive to reducing the difficulty of assembling the thermal management component 31 with other components.
  • a protrusion 3123 a is formed at one end of the second section 3123 away from the first section 3122 , and the connecting tube 3124 is connected to the protrusion 3123 a .
  • a protrusion 3123a is formed at one end of the second section 3123 away from the first section 3122, that is, a protrusion 3123a is formed at one end of the second section 3123 away from the first section 3122 in the second direction Y, and the confluence cavity 3121 in the confluence portion 312 extends into the protrusion 3123a, so that the connecting tube 3124 can be connected to the protrusion 3123a and communicate with the confluence cavity 3121.
  • the connecting tube 3124 can be connected to the protrusion 3123a and the connecting tube 3124 can be connected to the confluence cavity 3121 of the confluence part 312, thereby facilitating the connection of the connecting tube 3124 to the second section 3123 and reducing the difficulty of assembly between the connecting tube 3124 and the second section 3123.
  • the second section 3123 is bent to one side of the main body 311 in the second direction Y relative to the first section 3122, and the connecting tube 3124 is connected to one end of the protrusion 3123a in the third direction Z, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other.
  • the second section 3123 is bent relative to the first section 3122 to one side of the main body 311 in the second direction Y, that is, after the second section 3123 of the confluence portion 312 is bent relative to the first section 3122, the second section 3123 is located at one side of the main body 311 in the second direction Y.
  • the second section 3123 and the first section 3122 are perpendicular to each other, that is, the thickness direction of the second section 3123 is consistent with the first direction X.
  • connection position between the connecting tube 3124 and the protrusion 3123a will not occupy additional space of the thermal management component 31 in the first direction X, which is beneficial to saving the space occupied by the thermal management component 31 in the first direction X.
  • connection tube 3124 extends along the third direction Z.
  • the extension direction of the connection tube 3124 and the first direction X are perpendicular to each other.
  • the extension direction of the connecting tube 3124 is perpendicular to the first direction X, which is beneficial to optimize the space occupied by the connecting tube 3124 in the first direction X, so as to further save the space occupied by the thermal management component 31 in the first direction X.
  • a notch 3123b is formed at one end of the second section 3123 away from the first section 3122, and the notch 3123b and the protrusion 3123a are arranged along the third direction Z.
  • the notch 3123b is used to accommodate at least a portion of the connecting tube 3124.
  • a notch 3123b is formed at one end of the second section 3123 away from the first section 3122, and the notch 3123b and the protrusion 3123a are arranged along the third direction Z, that is, the end of the second section 3123 provided with the protrusion 3123a in the second direction Y is also correspondingly formed with a notch 3123b, and the notch 3123b and the protrusion 3123a are arranged along the third direction Z, so that the connecting tube 3124 connected to one side of the protrusion 3123a in the third direction Z can be accommodated in the notch 3123b.
  • a notch 3123b is further formed on the end of the second section 3123 away from the first section 3122, and the notch 3123b and the protrusion 3123a are arranged along the third direction Z, so that the connecting tube 3124 connected to the side of the protrusion 3123a in the third direction Z can be accommodated in the notch 3123b.
  • it can effectively save the space occupied by the thermal management component 31 in the first direction X, and can optimize the space occupied by the thermal management component 31 in the third direction Z.
  • FIG. 9 is a schematic diagram of the structure of the thermal management component 31 provided by some other embodiments of the present application
  • FIG. 10 is a partial enlarged view of the thermal management component 31 shown in FIG. 9 at C.
  • the connecting tube 3124 is connected to the end of the protrusion 3123a away from the first section 3122.
  • the connecting tube 3124 is connected to the end of the protrusion 3123a away from the first section 3122 in the second direction Y, so that the second section 3123, the protrusion 3123a and the connecting tube 3124 are arranged in sequence along the second direction Y.
  • connecting the connecting pipe 3124 By connecting the connecting pipe 3124 to the end of the protrusion 3123a away from the first section 3122, it is helpful to reduce the interference between the confluence part 312 and the connecting pipe 3124, and it is helpful to reduce the difficulty of assembling the connecting pipe 3124 and the protrusion 3123a.
  • the second section 3123 is bent relative to the first section 3122 to one side of the main body 311 in the second direction Y.
  • the connecting tube 3124 includes a first tube section 3124a and a second tube section 3124b, the first tube section 3124a connects the protrusion 3123a and the second tube section 3124b, the first tube section 3124a extends along the second direction Y, and the second tube section 3124b extends along the third direction Z, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other.
  • the first pipe section 3124a connects the protrusion 3123a and the second pipe section 3124b, the first pipe section 3124a extends along the second direction Y, and the second pipe section 3124b extends along the third direction Z, that is, the connecting pipe 3124 is an "L"-shaped structure, so that the connecting pipe 3124 has
  • the first tube segment 3124a and the second tube segment 3124b are perpendicular to each other.
  • the first tube segment 3124a is connected to the protrusion 3123a and extends along the second direction Y.
  • the second tube segment 3124b is connected to one end of the first tube segment 3124a away from the protrusion 3123a and extends along the third direction Z.
  • the connecting pipe 3124 is provided with a first pipe segment 3124a and a second pipe segment 3124b that are connected to each other.
  • the overall extension direction of the connecting pipe 3124 is perpendicular to the first direction X, which is beneficial to optimize the occupied space of the connecting pipe 3124 in the first direction X, so as to save the occupied space of the thermal management component 31 in the first direction X.
  • the connecting tube 3124 does not exceed the two sides of the second section 3123 . That is, in the thickness direction of the second section 3123 , the connecting tube 3124 is located between the two sides of the second section 3123 .
  • the connecting pipe 3124 By setting the connecting pipe 3124 so as not to exceed the two sides of the second section 3123 in the thickness direction of the second section 3123, the connecting pipe 3124 is located between the two sides of the second section 3123 in the thickness direction of the second section 3123, so that the connecting pipe 3124 does not occupy additional space, which is beneficial to optimizing the occupied space of the confluence part 312.
  • the thickness direction of the second section 3123 is consistent with the first direction X. That is, the second section 3123 extends along the second direction Y, so that the second section 3123 and the first direction X are perpendicular to each other, so that the connecting tube 3124 does not exceed the two sides of the second section 3123 in the first direction X.
  • the second section 3123 is bent to a structure perpendicular to the first section 3122, so that the connecting pipe 3124 that does not exceed the two sides of the second section 3123 in the thickness direction of the second section 3123 will not occupy additional space of the confluence part 312 in the first direction X, which is beneficial to save the space occupied by the confluence part 312 in the first direction X.
  • an embodiment of the present application further provides a thermal management system 30 , and the thermal management system 30 includes a plurality of thermal management components 31 according to any of the above schemes.
  • the plurality of thermal management components 31 are arranged at intervals along the second direction Y, that is, the body parts 311 of the plurality of thermal management components 31 are structures arranged at intervals along the second direction Y.
  • the thermal management system 30 includes four thermal management components 31 .
  • the thermal management system 30 may also include two, three, five or six thermal management components 31 .
  • the thermal management system 30 is provided with a plurality of thermal management components 31 .
  • the thermal management system 30 can exchange heat with the interior of the battery 100 through the plurality of thermal management components 31 , which is beneficial to improving the thermal management capability of the thermal management system 30 .
  • FIG11 is a partial enlarged view of the thermal management system 30 at D shown in FIG3.
  • the thermal management system 30 may further include a delivery pipe 32, the delivery pipe 32 is connected to the confluence cavities 3121 of the plurality of thermal management components 31, and the delivery pipe 32 is configured to provide a heat exchange medium into the confluence cavity 3121.
  • the delivery pipe 32 serves to deliver or recycle the heat exchange medium, and the delivery pipe 32 is connected to the confluence chambers 3121 of the plurality of thermal management components 31, so as to realize the parallel connection between the plurality of thermal management components 31.
  • the thermal management system 30 includes two delivery pipes 32, and the two delivery pipes 32 are respectively arranged at the two ends of the thermal management component 31 in the first direction X, so that the confluence chambers 3121 of the confluence parts 312 arranged at the two ends of the thermal management component 31 are respectively connected to the two delivery pipes 32, so as to realize the circulation of the heat exchange medium in the thermal management system 30.
  • the thermal management system 30 is also provided with a delivery pipe 32, and the delivery pipe 32 is connected to the confluence cavities 3121 of multiple thermal management components 31, so that the delivery pipe 32 can simultaneously provide heat exchange medium to the confluence cavities 3121 of multiple thermal management components 31, which is beneficial to improving the working efficiency of the thermal management system 30.
  • the thermal management system 30 may also include a flexible connector 33, which is arranged in a one-to-one correspondence with the confluence portion 312, and the flexible connector 33 connects the second section 3123 and the delivery pipe 32 to connect the confluence cavity 3121 with the delivery pipe 32, and the flexible connector 33 is configured to allow the delivery pipe 32 to move relative to the second section 3123.
  • the flexible connector 33 is arranged in one-to-one correspondence with the confluence part 312, and the flexible connector 33 connects the second section 3123 and the delivery pipe 32, that is, a flexible connector 33 is arranged corresponding to the confluence part 312 of each thermal management component 31, and the flexible connector 33 plays the role of connecting the second section 3123 of the confluence part 312 and the delivery pipe 32, so as to realize that the confluence cavity 3121 is connected with the delivery pipe 32 and the delivery pipe 32 can move relative to the confluence part 312.
  • the thermal management system 30 may not be provided with a flexible connector 33, and the delivery pipe 32 only needs to be directly connected to the second section 3123 of the confluence part 312.
  • the delivery pipe 32 is connected to the second section 3123 of the confluence part 312 of the heat management component 31 through the flexible connector 33, so that the confluence cavity 3121 is connected to the delivery pipe 32.
  • the heat management system 30 with this structure can realize the movement of the delivery pipe 32 relative to the second section 3123 of the confluence part 312 through the flexible connector 33, so as to facilitate the assembly of the delivery pipe 32 and the confluence part 312, and can absorb the assembly tolerance between the delivery pipe 32 and the confluence part 312 through the flexible connector 33, so as to improve the connection between the delivery pipe 32 and the confluence part 312.
  • the assembly accuracy between the two parts 312 is improved, and it is helpful to reduce the assembly difficulty between the delivery pipe 32 and the confluence part 312.
  • the flexible connector 33 may include a floating joint or a hose.
  • the specific structure of the floating joint can be found in the related art and will not be described in detail here.
  • the flexible connector 33 is a hose, that is, the delivery pipe 32 is connected to the second section 3123 of the confluence portion 312 through the hose, so that the delivery pipe 32 and the confluence portion 312 are structures that can move relative to each other.
  • a floating joint or a hose is used as a flexible connector 33 to connect the delivery pipe 32 and the second section 3123 of the confluence part 312, so that the delivery pipe 32 can move relative to the second section 3123 of the confluence part 312.
  • This structure is simple and easy to implement.
  • the confluence portion 312 further includes a connecting pipe 3124, the connecting pipe 3124 is connected to the second section 3123, the connecting pipe 3124 is in communication with the confluence cavity 3121, and the flexible connector 33 is in communication with the connecting pipe 3124 and the delivery pipe 32.
  • the delivery pipe 32 is connected to the connecting pipe 3124 of the confluence portion 312 through the flexible connector 33, so as to achieve communication between the delivery pipe 32 and the confluence cavity 3121 of the confluence portion 312.
  • the connecting tube 3124 is connected to the delivery tube 32 through the flexible connector 33, so that the delivery tube 32 can be connected to the confluence cavity 3121 of the confluence 312.
  • the confluence 312 with such a structure is conducive to reducing the difficulty of connecting between the flexible connector 33 and the second section 3123 of the confluence 312, thereby reducing the difficulty of assembling between the flexible connector 33 and the confluence 312.
  • a plurality of thermal management components 31 are arranged along the second direction Y, a delivery pipe 32 is disposed on one side of the plurality of thermal management components 31 in the third direction Z, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other.
  • the delivery pipe 32 is located above the plurality of heat management components 31 in the third direction Z, that is, the delivery pipe 32 is located on a side of the plurality of heat management components 31 in the third direction Z close to the first box body 11 .
  • the multiple thermal management components 31 of the thermal management system 30 By arranging the multiple thermal management components 31 of the thermal management system 30 along the second direction Y, and arranging the delivery pipe 32 on one side of the multiple thermal management components 31 in the third direction Z, it is beneficial to save the space occupied by the thermal management components 31 in the first direction X, so as to improve the internal space utilization rate of the battery 100 with such a thermal management system 30, and on the other hand, it is convenient to plug and unplug the delivery pipe 32, which is beneficial to reduce the difficulty of assembling the delivery pipe 32, and is beneficial to repair or replace the delivery pipe 32 during later use, so as to reduce the subsequent maintenance cost of the thermal management system 30.
  • the present application also provides a battery 100, which includes a housing 10, a plurality of battery cells 20, and a thermal management system 30 of any of the above schemes.
  • the plurality of battery cells 20 are accommodated in the housing 10, and the thermal management system 30 is disposed in the housing 10, and the thermal management system 30 is configured to manage the temperature of the battery cells 20.
  • FIG. 12 is a schematic diagram of the assembly of the thermal management system 30 and the battery cell 20 of the battery 100 provided in some embodiments of the present application
  • FIG. 13 is a partial enlarged view of the E after the thermal management system 30 and the battery cell 20 shown in FIG. 12 are assembled with each other.
  • the second section 3123 is bent relative to the first section 3122 to the side of the main body 311 in the second direction Y.
  • the plurality of battery cells 20 are arranged along the second direction Y.
  • a thermal management component 31 is provided between each two adjacent battery cells 20.
  • the second direction Y is perpendicular to the first direction X.
  • the main body 311 and the first section 3122 are both located on the side of the battery cell 20 in the second direction Y.
  • the main body 311 is configured to exchange heat with the battery cell 20.
  • the second section 3123 is located on the side of the battery cell 20 in the first direction X.
  • the second section 3123 is perpendicular to the first section 3122, that is, the first section 3122 extends along the first direction X, and the second section 3123 extends along the second direction Y, so that the first section 3122 of the confluence 312 and the main body 311 are both located on one side of the battery cell 20 in the second direction Y, so that the first section 3122 of the confluence 312 and the main body 311 are connected to each other, and the second section 3123 of the confluence 312 is located on one side of the battery cell 20 in the first direction X, and the thickness direction of the second section 3123 is consistent with the first direction X, so as to save the overall space occupied in the first direction X.
  • the main body 311 and the first section 3122 of the thermal management component 31 are both located on one side of the battery cell 20 in the second direction Y, so as to realize heat exchange between the main body 311 and the battery cell 20, and can effectively ensure that there is sufficient connection space between the main body 311 and the first section 3122 of the confluence portion 312 to ensure connection strength and reliability.
  • the second section 3123 of the confluence portion 312 is bent to one side of the main body 311 in the second direction Y relative to the first section 3122, and being located on one side of the battery cell 20 in the first direction X, the space occupied by the confluence portion 312 in the first direction X is saved, which is conducive to optimizing the internal space of the battery 100, so as to improve the space utilization rate inside the battery 100, and further can effectively improve the energy density of the battery 100.
  • an electric device is further provided, the electric device comprises a battery 100 according to any of the above schemes, and the battery 100 is used to provide electric energy to the electric device.
  • the power-consuming device may be any of the aforementioned devices or systems using the battery 100 .
  • the present application provides a thermal management component 31,
  • the management component 31 includes a main body 311 and two confluence parts 312.
  • the main body 311 extends along the first direction X, and the main body 311 is a plate-like structure.
  • the thickness direction of the main body 311 is the second direction Y.
  • a plurality of medium flow channels 3111 are formed inside the main body 311.
  • the two confluence parts 312 are respectively arranged at the two ends of the main body 311 in the first direction X.
  • a confluence cavity 3121 is formed inside the confluence part 312.
  • the confluence cavity 3121 is connected to the plurality of medium flow channels 3111.
  • the confluence part 312 includes an integrally formed first section 3122 and a second section 3123.
  • the first section 3122 extends along the first direction X and is connected to the main body 311.
  • the second section 3123 is bent relative to the first section 3122 and is arranged to one side of the main body 311 in the second direction Y.
  • the first section 3122 and the second section 3123 are perpendicular to each other.
  • the confluence portion 312 also includes a connecting tube 3124.
  • a protrusion 3123a and a notch 3123b are formed at one end of the second section 3123 away from the first section 3122 in the second direction Y.
  • the protrusion 3123a and the notch 3123b are arranged along the third direction Z.
  • the connecting tube 3124 is connected to one side of the protrusion 3123a in the third direction Z and is connected to the confluence cavity 3121.
  • the connecting tube 3124 extends along the third direction Z. At least a portion of the connecting tube 3124 is accommodated in the notch 3123b.
  • the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

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Abstract

本申请提供了一种热管理部件、热管理系统、电池及用电装置,属于电池技术领域。其中,热管理部件包括本体部和汇流部。本体部沿第一方向延伸,本体部的内部形成有用于容纳换热介质的介质流道。汇流部设置于本体部在第一方向上的一端,汇流部的内部形成有汇流腔,汇流腔与介质流道连通。汇流部包括一体成型的第一段和第二段,第一段沿第一方向延伸并连接于本体部,第二段相对第一段弯折设置。这种结构的热管理部件在保证本体部与第一段之间具有足够的连接空间而保证连接强度的同时能够有效节省热管理部件在第一方向上的占用空间,有利于优化具有这种热管理部件的电池的内部空间,从而能够有效提高电池内部的空间利用率,以提升电池的能量密度。

Description

热管理部件、热管理系统、电池及用电装置 技术领域
本申请涉及电池技术领域,具体而言,涉及一种热管理部件、热管理系统、电池及用电装置。
背景技术
近些年,新能源汽车有了飞跃式的发展,在电动汽车领域,动力电池作为电动汽车的动力源,起着不可替代的重要作用。电池由箱体和容纳于箱体内的多个电池单体组成,电池作为新能源汽车核心零部件不论在安全性方面,还是使用性能均有着较高的要求。其中,电池内的电池单体在不断的充放电使用过程中会产生大量的热量,由此会在箱体内设置用于调节电池单体的温度的热管理部件,以缓解电池内部出现温升的现象,但是,现有的热管理部件在电池内部的占用空间较大,从而导致电池内部的空间利用率较低,不利于提升电池的能量密度。
发明内容
本申请实施例提供一种热管理部件、热管理系统、电池及用电装置,能够有效提升电池的能量密度。
第一方面,本申请实施例提供一种热管理部件,包括本体部和汇流部;本体部沿第一方向延伸,本体部的内部形成有用于容纳换热介质的介质流道;汇流部设置于本体部在第一方向上的一端,汇流部的内部形成有汇流腔,汇流腔与介质流道连通;其中,汇流部包括一体成型的第一段和第二段,第一段沿第一方向延伸并连接于本体部,第二段相对第一段弯折设置。
在上述技术方案中,热管理部件设置有本体部和汇流部,汇流部设置于本体部在第一方向上的一端,使得本体部内的介质流道能够与汇流部内的汇流腔相互连通,以使换热介质能够通过汇流部的汇流腔流入或流出本体部的介质流道,从而通过本体部能够与电池内部的电池单体进行热交换,以实现对电池内的温度进行管理,其中,通过将汇流部设置为一体成型的第一段和第二段,第一段连接于本体部且与本体部的延伸方向一致,并将第二段设置为相对第一段弯折的结构,使得第二段的延伸方向能够偏离第一方向,从而使得采用这种结构的热管理部件在保证本体部与汇流部的第一段之间具有足够的连接空间而保证连接强度和可靠性的同时能够有效节省热管理部件在第一方向上的占用空间,有利于优化具有这种热管理部件的电池的内部空间,进而能够有效提高电池内部的空间利用率,以提升电池的能量密度。
在一些实施例中,本体部为板状结构,第二段相对第一段弯折至本体部在本体部的厚度方向上的一侧。
在上述技术方案中,通过将本体部设置为板状结构,并将第二段设置为相对第一段弯折至本体部在本体部的厚度方向上的一侧,使得这种结构的热管理部件一方面在制造的过程中便于对第二段进行弯折,有利于降低汇流部的加工难度,另一方面在本体部沿本体部的厚度方向设置于层叠布置的两个电池单体之间时能够实现第二段位于电池单体在第一方向上的一侧,无需占用其他方向上的空间,从而有利于进一步优化具有这种热管理部件的电池的内部空间,以提升电池的能量密度。
在一些实施例中,第一段与第二段相互垂直。
在上述技术方案中,通过将第二段设置为相对第一段弯折成第二段与第一段相互垂直的结构,从而使得第二段与第一方向相互垂直,以使第二段在第一方向上占用的空间最小,进而有利于进一步节省热管理部件在第一方向上的占用空间,以提升具有这种热管理部件的电池的内部空间利用率。
在一些实施例中,热管理部件包括两个汇流部;沿第一方向,两个汇流部的第一段分别连接于本体部的两端。
在上述技术方案中,本体部在第一方向上的两端均设置有汇流部,使得本体部的介质流道在第一方向上的两端能够分别与两个汇流部的汇流腔均连通,从而能够实现换热介质从一个汇流部的汇流腔进入本体部的介质流道后再从另一个汇流部的汇流腔流出,以实现换热介质在介质流道内的循环,进而有利于提升热管理部件的换热能力。
在一些实施例中,本体部的内部形成有多个介质流道,多个介质流道均与汇流腔连通。
在上述技术方案中,通过在本体部的内部设置多个介质流道,且多个介质流道均与汇流部的汇流腔连通,从而使得汇流部的汇流腔能够起到汇流作用,以便于同时向多个介质流道内注入换热介质或供多个介质流道内的换热介质流出。
在一些实施例中,汇流部还包括连接管;连接管连接于第二段,连接管与汇流腔连通。
在上述技术方案中,汇流部还设置有连接在汇流部的第二段上的连接管,且连接管与汇流腔连通,采用这种结构的热管理部件便于通过连接管与其他部件相连,以实现多个热管理部件之间的串联或并联,有利于降低热管理部件与其他部件之间的装配难度。
在一些实施例中,第二段远离第一段的一端形成有凸起,连接管连接于凸起。
在上述技术方案中,通过在汇流部的第二段远离第一段的一端设置凸起,以将连接管连接于凸起上并实现连接管与汇流部的汇流腔连通,从而便于将连接管连接于第二段上,有利于降低连接管与第二段之间的装配难度。
在一些实施例中,第二段相对第一段弯折至本体部在第二方向上的一侧,连接管连接于凸起在第三方向上的一端,第一方向、第二方向和第三方向两两垂直。
在上述技术方案中,通过将第二段设置为相对第一段弯折至本体部在第二方上的一侧,并将连接管连接于凸起在第三方向上的一侧,使得连接管与凸起的连接位置不会占用热管理部件在第一方向上额外的空间,从而有利于节省热管理部件在第一方向上的占用空间。
在一些实施例中,连接管沿第三方向延伸。
在上述技术方案中,通过将连接管设置为沿第三方向延伸的结构,使得连接管的延伸方向与第一方向相互垂直,从而有利于优化连接管在第一方向上的占用空间,以进一步节省热管理部件在第一方向上的占用空间。
在一些实施例中,第二段远离第一段的一端形成有缺口,缺口与凸起沿第三方向排布,缺口用于容纳连接管的至少部分。
在上述技术方案中,第二段远离第一段的一端上还形成有缺口,且缺口与凸起沿第三方向排布,使得连接于凸起在第三方向上的一侧的连接管能够容纳于缺口内,一方面便于将连接管连接于凸起上,有利于降低装配难度,另一方面能够有效节省热管理部件在第一方向上的占用空间,且能够优化热管理部件在第三方向上的占用空间。
在一些实施例中,连接管连接于凸起远离第一段的一端。
在上述技术方案中,通过将连接管连接在凸起远离第一段的一端上,从而有利于减少汇流部与连接管之间的干涉影响,有利于降低连接管与凸起之间的装配难度。
在一些实施例中,第二段相对第一段弯折至本体部在第二方向上的一侧;连接管包括第一管段和第二管段,第一管段连接凸起和第二管段,第一管段沿第二方向延伸,第二管段沿第三方向延伸,第一方向、第二方向和第三方向两两垂直。
在上述技术方案中,连接管设置有相互连接的第一管段和第二管段,通过将连接于凸起上的第一管段设置为沿第二方向延伸的结构,并将连接于第一管段上的第二管段设置为沿第三方向延伸的结构,使得连接管整体的延伸方向均与第一方向相互垂直,从而有利于优化连接管在第一方向上的占用空间,以节省热管理部件在第一方向上的占用空间。
在一些实施例中,沿第二段的厚度方向,连接管不超出第二段的两侧。
在上述技术方案中,通过将连接管设置为在第二段的厚度方向上不超出第二段的两侧,使得连接管在第二段的厚度方向上位于第二段的两侧之间,以使连接管不会占用额外的空间,有利于优化汇流部的占用空间。
在一些实施例中,第二段的厚度方向与第一方向一致。
在上述技术方案中,通过将第二段的厚度方向设置为与第一方向一致,使得第二段为弯折至与第一段相互垂直的结构,从而使得在第二段的厚度方向上不超出第二段的两侧的连接管在第一方向上不会占用汇流部额外的空间,进而有利于节省汇流部在第一方向上的占用空间。
第二方面,本申请实施例还提供一种热管理系统,包括多个上述的热管理部件。
在上述技术方案中,热管理系统设置有多个热管理部件,采用这种热管理系统能够通过多个热管理部件与电池的内部进行换热,有利于提升热管理系统的热管理能力。
在一些实施例中,热管理系统还包括输送管;输送管与多个热管理部件的汇流腔均连通,输送管被配置为向汇流腔内提供换热介质。
在上述技术方案中,热管理系统还设置有输送管,且输送管与多个热管理部件的汇流腔均 连通,使得输送管能够同时向多个热管理部件的汇流腔内提供换热介质,有利于提升热管理系统的工作效率。
在一些实施例中,热管理系统还包括柔性连接件;柔性连接件与汇流部一一对应设置,柔性连接件连接第二段和输送管,以使汇流腔与输送管连通,柔性连接件被配置为允许输送管相对第二段活动。
在上述技术方案中,输送管与热管理部件的汇流部的第二段通过柔性连接件相连,以实现汇流腔与输送管连通,采用这种结构的热管理系统通过柔性连接件能够实现输送管相对汇流部的第二段活动,从而便于将输送管和汇流部进行装配,并能够通过柔性连接件吸收输送管与汇流部之间的装配公差,进而有利于提升输送管与汇流部之间的装配精度,且有利于降低输送管与汇流部之间的装配难度。
在一些实施例中,柔性连接件包括浮动接头或软管。
在上述技术方案中,采用浮动接头或软管作为柔性连接件连接输送管和汇流部的第二段,以实现输送管能够相对汇流部的第二段活动,这种结构简单,且便于实现。
在一些实施例中,汇流部还包括连接管;连接管连接于第二段,连接管与汇流腔连通,柔性连接件连通连接管和输送管。
在上述技术方案中,通过在汇流部的第二段上设置与汇流腔连通的连接管,连接管通过柔性连接件与输送管相连后能够实现输送管与汇流部的汇流腔连通,采用这种结构的汇流部有利于降低柔性连接件与汇流部的第二段之间的连接难度,以降低柔性连接件与汇流部之间的装配难度。
在一些实施例中,多个热管理部件沿第二方向排布,输送管设置于多个热管理部件在第三方向上的一侧,第一方向、第二方向和第三方向两两垂直。
在上述技术方案中,通过将热管理系统的多个热管理部件设置为沿第二方向排布,且输送管设置于多个热管理部件在第三方向上的一侧,从而一方面有利于节省热管理部件在第一方向上的占用空间,以提升具有这种热管理系统的电池的内部空间利用率,另一方面便于对输送管进行拔插,进而有利于降低输送管的装配难度,且有利于在后期使用过程中对输送管进行维修或更换,以降低热管理系统的后续维护成本。
第三方面,本申请实施例还提供一种电池,包括箱体、多个电池单体和上述的热管理系统;多个电池单体容纳于箱体内;热管理系统设置于箱体内,热管理系统被配置为管理电池单体的温度。
在一些实施例中,第二段相对第一段弯折至本体部在第二方向上的一侧,多个电池单体沿第二方向排布,每相邻的两个电池单体之间设置有热管理部件,第二方向垂直于第一方向;其中,本体部和第一段均位于电池单体在第二方向上的一侧,本体部被配置为与电池单体热交换,第二段位于电池单体在第一方向上的一侧。
在上述技术方案中,热管理部件的本体部和第一段均位于电池单体在第二方向上的一侧,以实现本体部与电池单体之间的热交换,且能够有效保证本体部与汇流部的第一段之间具有足够的连接空间而保证连接强度和可靠性的。此外,通过将汇流部的第二段设置为相对第一段弯折至本体部在第二方向上的一侧,且位于电池单体在第一方向上的一侧,以节省汇流部在第一方向上的占用空间,从而有利于优化电池的内部空间,以提高电池内部的空间利用率,进而能够有效提升电池的能量密度。
第四方面,本申请实施例还提供一种用电装置,包括上述的电池,电池用于提供电能。
附图说明
为了更清楚地说明本申请实施例的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,应当理解,以下附图仅示出了本申请的某些实施例,因此不应被看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图。
图1为本申请一些实施例提供的车辆的结构示意图;
图2为本申请一些实施例提供的电池的结构爆炸图;
图3为本申请一些实施例提供的热管理系统的结构示意图;
图4为本申请一些实施例提供的热管理部件的结构示意图;
图5为图4所示的热管理部件的A处的局部放大图;
图6为本申请一些实施例提供的热管理部件的剖视图;
图7为本申请一些实施例提供的热管理部件的结构爆炸图;
图8为图7所示的热管理部件的B处的局部放大图;
图9为本申请又一些实施例提供的热管理部件的结构示意图;
图10为图9所示的热管理部件的C处的局部放大图;
图11为图3所示的热管理系统的D处的局部放大图;
图12为本申请一些实施例提供的电池的热管理系统与电池单体的装配示意图;
图13为图12所示的热管理系统与电池单体相互装配后的E处的局部放大图。
图标:1000-车辆;100-电池;10-箱体;11-第一箱本体;12-第二箱本体;20-电池单体;30-热管理系统;31-热管理部件;311-本体部;3111-介质流道;312-汇流部;3121-汇流腔;3122-第一段;3123-第二段;3123a-凸起;3123b-缺口;3124-连接管;3124a-第一管段;3124b-第二管段;32-输送管;33-柔性连接件;200-控制器;300-马达;X-第一方向;Y-第二方向;Z-第三方向。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚,下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
除非另有定义,本申请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;本申请中在申请的说明书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。本申请的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象,而不是用于描述特定顺序或主次关系。
在本申请中提及“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。
在本申请的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“附接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;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。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中的具体含义。
本申请中术语“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,本申请中字符“/”,一般表示前后关联对象是一种“或”的关系。
在本申请的实施例中,相同的附图标记表示相同的部件,并且为了简洁,在不同实施例中,省略对相同部件的详细说明。应理解,附图示出的本申请实施例中的各种部件的厚度、长宽等尺寸,以及集成装置的整体厚度、长宽等尺寸仅为示例性说明,而不应对本申请构成任何限定。
本申请中出现的“多个”指的是两个以上(包括两个)。
本申请实施例中,电池单体可以为二次电池,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。
电池单体可以为锂离子电池、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,本申请实施例对此并不限定。
电池单体一般包括电极组件。电极组件包括正极、负极以及隔离件。在电池单体充放电过程中,活性离子(例如锂离子)在正极和负极之间往返嵌入和脱出。隔离件设置在正极和负极之间,可以起到防止正负极短路的作用,同时可以使活性离子通过。
在一些实施例中,正极可以为正极片,正极片可以包括正极集流体以及设置在正极集流体至少一个表面的正极活性材料。
作为示例,正极集流体具有在其自身厚度方向相对的两个表面,正极活性材料设置在正极集流体相对的两个表面的任意一者或两者上。
作为示例,正极集流体可采用金属箔片或复合集流体。例如,作为金属箔片,可采用银表 面处理的铝或不锈钢、不锈钢、铜、铝、镍、炭精电极、碳、镍或钛等。复合集流体可包括高分子材料基层和金属层。复合集流体可通过将金属材料(铝、铝合金、镍、镍合金、钛、钛合金、银及银合金等)形成在高分子材料基材(如聚丙烯、聚对苯二甲酸乙二醇酯、聚对苯二甲酸丁二醇酯、聚苯乙烯、聚乙烯等的基材)上而形成。
作为示例,正极活性材料可包括以下材料中的至少一种:含锂磷酸盐、锂过渡金属氧化物及其各自的改性化合物。但本申请并不限定于这些材料,还可以使用其他可被用作电池正极活性材料的传统材料。这些正极活性材料可以仅单独使用一种,也可以将两种以上组合使用。其中,含锂磷酸盐的示例可包括但不限于磷酸铁锂(如LiFePO4(也可以简称为LFP))、磷酸铁锂与碳的复合材料、磷酸锰锂(如LiMnPO4)、磷酸锰锂与碳的复合材料、磷酸锰铁锂、磷酸锰铁锂与碳的复合材料中的至少一种。
在一些实施例中,负极可以为负极片,负极片可以包括负极集流体。
作为示例,负极集流体可采用金属箔片、泡沫金属或复合集流体。例如,作为金属箔片,可以采用银表面处理的铝或不锈钢、不锈钢、铜、铝、镍、炭精电极、用碳、镍或钛等。泡沫金属可以为泡沫镍、泡沫铜、泡沫铝、泡沫合金、或泡沫碳等。复合集流体可包括高分子材料基层和金属层。复合集流体可通过将金属材料(铜、铜合金、镍、镍合金、钛、钛合金、银及银合金等)形成在高分子材料基材(如聚丙烯、聚对苯二甲酸乙二醇酯、聚对苯二甲酸丁二醇酯、聚苯乙烯、聚乙烯等的基材)上而形成。
作为示例,负极片可以包括负极集流体以及设置在负极集流体至少一个表面上的负极活性材料。
作为示例,负极集流体具有在其自身厚度方向相对的两个表面,负极活性材料设置在负极集流体相对的两个表面中的任意一者或两者上。
作为示例,负极活性材料可采用本领域公知的用于电池单体的负极活性材料。作为示例,负极活性材料可包括以下材料中的至少一种:人造石墨、天然石墨、软炭、硬炭、硅基材料、锡基材料和钛酸锂等。
在一些实施例中,正极集流体的材料可以为铝,负极集流体的材料可以为铜。
在一些实施方式中,电极组件还包括隔离件,隔离件设置在正极和负极之间。
在一些实施方式中,隔离件为隔离膜。本申请对隔离膜的种类没有特别的限制,可以选用任意公知的具有良好的化学稳定性和机械稳定性的多孔结构隔离膜。
作为示例,隔离膜的主要材质可选自玻璃纤维、无纺布、聚乙烯、聚丙烯及聚偏二氟乙烯,陶瓷中的至少一种。
在一些实施方式中,隔离件为固态电解质。固态电解质设于正极和负极之间,同时起到传输离子和隔离正负极的作用。
在一些实施方式中,电池单体还包括电解质,电解质在正、负极之间起到传导离子的作用。本申请对电解质的种类没有具体的限制,可根据需求进行选择。电解质可以是液态的、凝胶态的或固态的。
在一些实施方式中,电极组件为卷绕结构。正极片、负极片卷绕成卷绕结构。
在一些实施方式中,电极组件为叠片结构。
在一些实施方式中,电极组件的形状可以为圆柱状,扁平状或多棱柱状等。
在一些实施方式中,电极组件设有极耳,极耳可以将电流从电极组件导出。极耳包括正极耳和负极耳。
在一些实施方式中,电池单体可以包括外壳。外壳用于封装电极组件及电解质等部件。外壳可以为钢壳、铝壳、塑料壳(如聚丙烯)、复合金属壳(如铜铝复合外壳)或铝塑膜等。
作为示例,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。
本申请的实施例所提到的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。
在一些实施例中,电池可以为电池模块,电池单体有多个时,多个电池单体排列并固定形成一个电池模块。
在一些实施例中,电池可以为电池包,电池包包括箱体和电池单体,电池单体或电池模块 容纳于箱体中。
在一些实施例中,箱体可以作为车辆的底盘结构的一部分。例如,箱体的部分可以成为车辆的地板的至少一部分,或者,箱体的部分可以成为车辆的横梁和纵梁的至少一部分。
在一些实施例中,电池可以为储能装置。储能装置包括储能集装箱、储能电柜等。
近些年,新能源汽车有了飞跃式的发展,在电动汽车领域,动力电池作为电动汽车的动力源,起着不可替代的重要作用。电池由箱体和容纳于箱体内的多个电池单体组成。其中,电池作为新能源汽车核心零部件不论在安全性方面,还是使用性能上均有着较高的要求。
发明人发现,在一般的动力电池中,为了使得电池获得足够的功率,通常将电池的箱体内的多个电池单体呈排列方式设置。然而,电池单体在不断的充放电使用过程中会产生大量的热量,从而会导致电池的内部温度上升,且多个电池单体层叠设置的结构会加剧这种现象的产生,进而严重影响到电池的使用性能和使用寿命,甚至会导致电池在使用过程中存在较大的安全隐患,不利于消费者的使用安全。
因此,为了解决电池的内部出现温升的现象,在现有技术中,通常会在电池的内部设置热管理部件,通过在每相邻的两个电池单体之间设置一个热管理部件,且热管理部件的内部形成有供换热介质流动的通道,从而能够对电池单体起到冷却降温或加热升温的作用以对电池单体的温度进行调节。其中,现有的热管理部件通常由水冷板和汇流件两部分组成,水冷板设置于相邻的两个电池单体之间,且水冷板的内部形成有供换热介质流动的通道,汇流件连接于水冷板在水冷板的延伸方向上的一端并与水冷板内部的通道连通,以起到汇流的作用,从而使得热管理部件通过汇流件能够与用于提供换热介质的主管道连通,以实现换热介质的流入或流出水冷板的通道。但是,由于水冷板与汇流件通常采用粘接、焊接或卡接等方式相连,因此,水冷板与汇流件相互连接的位置需要足够的宽度尺寸才能够保证水冷板与汇流件的连接强度和稳定性,以减少热管理部件在使用过程中出现破损开裂而导致换热介质泄漏的风险,从而需要将水冷板设置为在其延伸方向上延伸出电池单体的端面后再与汇流件相互连接,以造成热管理部件在水冷板的延伸方向上的占用空间较大,不利于优化电池的内部空间,进而造成电池内部的空间利用率较低,不利于提升电池的能量密度。
基于上述考虑,为了解决现有的电池内部的空间利用率较低的问题,发明人经过深入研究,设计了一种热管理部件,热管理部件包括本体部和汇流部。沿第一方向延伸,本体部的内部形成有用于容纳换热介质的介质流道。汇流部设置于本体部在第一方向上的一端,汇流部的内部形成有汇流腔,汇流腔与介质流道连通,汇流部包括一体成型的第一段和第二段,第一段沿第一方向延伸并连接于本体部,第二段相对第一段弯折设置。
在具有这种结构的热管理部件的电池中,热管理部件设置有本体部和汇流部,汇流部设置于本体部在第一方向上的一端,使得本体部内的介质流道能够与汇流部内的汇流腔相互连通,以使换热介质能够通过汇流部的汇流腔流入或流出本体部的介质流道,从而通过本体部能够与电池内部的电池单体进行热交换,以实现对电池内的温度进行管理,其中,通过将汇流部设置为一体成型的第一段和第二段,第一段连接于本体部且与本体部的延伸方向一致,并将第二段设置为相对第一段弯折的结构,使得第二段的延伸方向能够偏离第一方向,从而使得采用这种结构的热管理部件在保证本体部与汇流部的第一段之间具有足够的连接空间而保证连接强度和可靠性的同时能够有效节省热管理部件在第一方向上的占用空间,有利于优化具有这种热管理部件的电池的内部空间,进而能够有效提高电池内部的空间利用率,以提升电池的能量密度。
本申请实施例公开的热管理部件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热管理系统、电池等组成该用电装置的电源系统,这样,有利于减少热管理部件的占用空间,以提升电池内部的空间利用率。
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。
在本申请的一些实施例中,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。
请参照图2,图2为本申请一些实施例提供的电池100的结构爆炸图。电池100包括箱体10和多个电池单体20,电池单体20用于容纳于箱体10内。
其中,箱体10用于为电池单体20提供装配空间,箱体10可以采用多种结构。在一些实施例中,箱体10可以包括第一箱本体11和第二箱本体12,第一箱本体11与第二箱本体12相互盖合,第一箱本体11和第二箱本体12共同限定出用于容纳电池单体20的装配空间。第二箱本体12可以为一端开放的空心结构,第一箱本体11可以为板状结构,第一箱本体11盖合于第二箱本体12的开放侧,以使第一箱本体11与第二箱本体12共同限定出装配空间;第一箱本体11和第二箱本体12也可以是均为一侧开放的空心结构,第一箱本体11的开放侧盖合于第二箱本体12的开放侧。当然,第一箱本体11和第二箱本体12形成的箱体10可以是多种形状,比如,圆柱体、长方体等。示例性的,在图2中,箱体10为长方体结构。
在电池100中,电池单体20可以是一个,也可以是多个。在一些实施例中,参见图2所示,电池100包括多个电池单体20,多个电池单体20之间可以是串联或并联或混联,混联是指多个电池单体20中既有串联又有并联。多个电池单体20之间可直接串联或并联或混联在一起,再将多个电池单体20构成的整体容纳于箱体10内;当然,电池100也可以是多个电池单体20先串联或并联或混联组成电池模块形式,多个电池模块再串联或并联或混联形成一个整体,并容纳于箱体10内。电池100还可以包括其他结构,例如,该电池100还可以包括汇流部件,用于实现多个电池单体20之间的电连接。
可选地,每个电池单体20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。同样的,电池单体20的形状也可以是多种,比如,电池单体20可呈圆柱体、扁平体、长方体或其它形状等。
示例性的,在图2中,电池单体20的形状为长方体,电池单体20沿第一方向X延伸,且多个电池单体20沿第二方向Y排布,第一方向X和第二方向Y相互垂直,即第一方向X为电池单体20的长度方向,第二方向Y为电池单体20的厚度方向。其中,第三方向Z为电池单体20的高度方向。
在一些实施例中,参照图2,并请进一步参照图3和图4,图3为本申请一些实施例提供的热管理系统30的结构示意图,图4为本申请一些实施例提供的热管理部件31的结构示意图。电池100还可以包括热管理系统30,热管理系统30设置于箱体10内,热管理系统30用于管理电池100内的电池单体20的温度,以对电池单体20起到冷却降温或加热升温的作用,从而能够有效缓解电池100的内部出现温升的现象,以提升电池100的使用安全性。
其中,热管理系统30可以包括多个热管理部件31,沿第二方向Y,多个热管理部件31间隔设置,每相邻的两个电池单体20之间均设置有热管理部件31,热管理部件31被配置为与电池单体20进行热交换,以管理电池单体20的温度,从而能够对电池单体20起到冷却降温或加热升温的作用。
可选地,热管理系统30的多个热管理部件31之间可以是相互串联的结构,也可以是相互并联的结构。示例性的,在图3和图4中,多个热管理部件31为相互并联的结构,热管理系统30还可以包括输送管32,多个热管理部件31均与输送管32连通,使得输送管32能够同时向多个热管理部件31提供换热介质,以实现多个热管理部件31之间的并联结构。当然,在其他实施例中,多个热管理部件31之间也可以是相互串联的结构,也就是说,多个热管理部件31依次相连,以实现多个热管理部件31之间的串联结构。
需要说明的是,在多个热管理部件31相互串联或相互并联的结构中,可以是一个热管理部件31与另一个热管理部件31直接相连,也可以是通过其他部件相连,比如,管道等,以实现多个热管理部件31的串联结构或并联结构。
根据本申请的一些实施例,参照图3和图4,并请进一步参照图5和图6,图5为图4所示的热管理部件31的A处的局部放大图,图6为本申请一些实施例提供的热管理部件31的剖视图。本申请提供了一种热管理部件31,热管理部件31包括本体部311和汇流部312。本体部311 沿第一方向X延伸,本体部311的内部形成有用于容纳换热介质的介质流道3111。汇流部312设置于本体部311在第一方向X上的一端,汇流部312的内部形成有汇流腔3121,汇流腔3121与介质流道3111连通。汇流部312包括一体成型的第一段3122和第二段3123,第一段3122沿第一方向X延伸并连接于本体部311,第二段3123相对第一段3122弯折设置。
其中,热管理部件31的本体部311的内部形成有介质流道3111,通过向介质流道3111内注入换热介质能够实现本体部311与电池单体20进行热交换,以实现热管理部件31管理电池单体20的温度的功能。
可选地,本体部311的形状可以是多种,示例性的,在图4和图5中,本体部311为沿第一方向X延伸的板状结构,且本体部311的厚度方向与第二方向Y相同,当然,在其他实施例中,本体部311也可以为沿第一方向X延伸的柱状结构等。同样的,设置于本体部311的内部的介质流道3111的数量可以是一个,也可以是多个,示例性的,在图6中,设置于本体部311的内部的介质流道3111为多个,且多个介质流道3111沿第三方向Z间隔排布,有利于提高本体部311与电池单体20之间的换热能力。
示例性的,换热介质可以是气体,比如,空气或氢气等,换热介质也可以是液体,比如,水、盐水溶液或液氮等。
参见图4、图5和图6所示,汇流部312设置于本体部311在第一方向X上的一端,汇流部312的内部形成有汇流腔3121,即汇流部312连接于本体部311在第一方向X上的一端上,且汇流部312为中空结构,使得汇流部312的内部的汇流腔3121能够与本体部311的介质流道3111连通,从而起到汇流的作用。
汇流部312包括一体成型的第一段3122和第二段3123,第一段3122沿第一方向X延伸并连接于本体部311,第二段3123相对第一段3122弯折设置,也就是说,汇流部312为一体式结构,且包括相互呈夹角设置的第一段3122和第二段3123,其中,第一段3122与本体部311相连,第二段3123与第一方向X呈夹角设置,使得汇流部312的汇流腔3121的一部分位于第一段3122内,另一部分位于第二段3123内。
其中,第一段3122与本体部311的连接方式可以是多种,即本体部311与汇流部312可以是分体式结构,也可以是一体式结构,若本体部311与汇流部312为分体式结构,则汇流部312的第一段3122与本体部311可以通过焊接、粘接或卡接等方式连接;若本体部311与汇流部312为一体式结构,即本体部311与汇流部312为一体成型加工而成,则本体部311与汇流部312可以采用冲压、铸造或挤出成型等工艺制成。
示例性的,在图5中,第二段3123相对第一段3122弯折至第一段3122在第二方向Y上的一侧,即第二段3123位于第一段3122在第二方向Y上的一侧。当然,汇流部312的结构并不局限于此,在一些实施例中,第二段3123也可以为相对第一段3122弯折至第一段3122在第三方向Z上的一侧。
需要说明的是,第二段3123相对第一段3122弯折设置,使得第二段3123可以是与第一段3122相互垂直的结构,也可以是第二段3123与第一段3122呈钝角或锐角设置的结构。示例性的,在图5和图6中,第二段3123与第一段3122相互垂直,即第二段3123沿第二方向Y延伸,也就是说,第二段3123的厚度方向与第一方向X相同。
热管理部件31设置有本体部311和汇流部312,汇流部312设置于本体部311在第一方向X上的一端,使得本体部311内的介质流道3111能够与汇流部312内的汇流腔3121相互连通,以使换热介质能够通过汇流部312的汇流腔3121流入或流出本体部311的介质流道3111,从而通过本体部311能够与电池100内部的电池单体20进行热交换,以实现对电池100内的温度进行管理,其中,通过将汇流部312设置为一体成型的第一段3122和第二段3123,第一段3122连接于本体部311且与本体部311的延伸方向一致,并将第二段3123设置为相对第一段3122弯折的结构,使得第二段3123的延伸方向能够偏离第一方向X,从而使得采用这种结构的热管理部件31在保证本体部311与汇流部312的第一段3122之间具有足够的连接空间而保证连接强度和可靠性的同时能够有效节省热管理部件31在第一方向X上的占用空间,有利于优化具有这种热管理部件31的电池100的内部空间,进而能够有效提高电池100内部的空间利用率,以提升电池100的能量密度。
根据本申请的一些实施例,参见图4和图5所示,本体部311为板状结构,第二段3123相对第一段3122弯折至本体部311在本体部311的厚度方向上的一侧。
其中,在本实施例中,本体部311为沿第一方向X延伸的结构,且本体部311的厚度方向与第二方向Y一致,即使得汇流部312的第二段3123相对第一段3122弯折后使得第二段3123位于本体部311在第二方向Y上的一侧。
通过将本体部311设置为板状结构,并将第二段3123设置为相对第一段3122弯折至本体部311在本体部311的厚度方向上的一侧,使得这种结构的热管理部件31一方面在制造的过程中便于对第二段3123进行弯折,有利于降低汇流部312的加工难度,另一方面在本体部311沿本体部311的厚度方向设置于层叠布置的两个电池单体20之间时能够实现第二段3123位于电池单体20在第一方向X上的一侧,无需占用其他方向上的空间,从而有利于进一步优化具有这种热管理部件31的电池100的内部空间,以提升电池100的能量密度。
根据本申请的一些实施例,请继续参见图4和图5所示,第一段3122与第二段3123相互垂直。
其中,汇流部312的第一段3122沿第一方向X延伸,第一段3122与第二段3123相互垂直,即第二段3123沿垂直于第一方向X的方向延伸,在图5中,第二段3123为沿第二方向Y延伸的结构,使得第二段3123垂直于第一段3122、本体部311和第一方向X。
通过将第二段3123设置为相对第一段3122弯折成第二段3123与第一段3122相互垂直的结构,从而使得第二段3123与第一方向X相互垂直,以使第二段3123在第一方向X上占用的空间最小,进而有利于进一步节省热管理部件31在第一方向X上的占用空间,以提升具有这种热管理部件31的电池100的内部空间利用率。
根据本申请的一些实施例,参见图3和图4所示,热管理部件31包括两个汇流部312,沿第一方向X,两个汇流部312的第一段3122分别连接于本体部311的两端。
其中,两个汇流部312的第一段3122分别连接于本体部311的两端,也就是说,本体部311在第一方向X上的两端均连接有汇流部312,且均为本体部311与汇流部312的第一段3122相连的结构。
本体部311在第一方向X上的两端均设置有汇流部312,使得本体部311的介质流道3111在第一方向X上的两端能够分别与两个汇流部312的汇流腔3121均连通,从而能够实现换热介质从一个汇流部312的汇流腔3121进入本体部311的介质流道3111后再从另一个汇流部312的汇流腔3121流出,以实现换热介质在介质流道3111内的循环,进而有利于提升热管理部件31的换热能力。
根据本申请的一些实施例,参照图6,并请进一步参照图7和图8,图7为本申请一些实施例提供的热管理部件31的结构爆炸图,图8为图7所示的热管理部件31的B处的局部放大图。本体部311的内部形成有多个介质流道3111,多个介质流道3111均与汇流腔3121连通。
示例性的,本体部311内的多个介质流道3111沿第三方向Z间隔排布,且每个介质流道3111均沿第一方向X延伸,以便于制造和加工,且便于换热介质流入或流出介质流道3111。
需要说明的是,在本体部311的两端均连接有汇流部312的实施例中,多个介质流道3111的两端分别与两个汇流部312的汇流腔3121连通,也就是说,多个介质流道3111在第一方向X上的一端与一个汇流部312的汇流腔3121连通,多个介质流道3111在第一方向X上的另一端与另一个汇流部312的汇流腔3121连通。
通过在本体部311的内部设置多个介质流道3111,且多个介质流道3111均与汇流部312的汇流腔3121连通,从而使得汇流部312的汇流腔3121能够起到汇流作用,以便于同时向多个介质流道3111内注入换热介质或供多个介质流道3111内的换热介质流出。
根据本申请的一些实施例,参见图4、图5和图6所示,汇流部312还包括连接管3124,连接管3124连接于第二段3123,连接管3124与汇流腔3121连通。
其中,第二段3123上连接有连接管3124,使得汇流腔3121与连接管3124连通后能够通过连接管3124与输送管32相连,以实现输送管32向汇流腔3121内输送换热介质,从而满足换热介质在本体部311的介质流道3111内流动。
可选地,连接管3124与第二段3123的连接方式可以是多种,示例性的,在图5和图6中,连接管3124与第二段3123为一体式结构,即连接管3124和第二段3123通过一体成型加工工艺制成,比如,铸造、挤出成型等。当然,在一些实施例中,连接管3124与第二段3123也可以是分体式结构,连接管3124可以通过卡接、粘接或焊接等方式连接于第二段3123上。
汇流部312还设置有连接在汇流部312的第二段3123上的连接管3124,且连接管3124 与汇流腔3121连通,采用这种结构的热管理部件31便于通过连接管3124与其他部件相连,以实现多个热管理部件31之间的串联或并联,有利于降低热管理部件31与其他部件之间的装配难度。
根据本申请的一些实施例,参见图4、图5和图6所示,第二段3123远离第一段3122的一端形成有凸起3123a,连接管3124连接于凸起3123a。
其中,第二段3123远离第一段3122的一端形成有凸起3123a,即第二段3123在第二方向Y上背离第一段3122的一端形成有凸起3123a,且汇流部312内的汇流腔3121延伸至凸起3123a内,使得连接管3124连接于凸起3123a上后能够与汇流腔3121连通。
通过在汇流部312的第二段3123远离第一段3122的一端设置凸起3123a,以将连接管3124连接于凸起3123a上并实现连接管3124与汇流部312的汇流腔3121连通,从而便于将连接管3124连接于第二段3123上,有利于降低连接管3124与第二段3123之间的装配难度。
根据本申请的一些实施例,请继续参见图4、图5和图6所示,第二段3123相对第一段3122弯折至本体部311在第二方向Y上的一侧,连接管3124连接于凸起3123a在第三方向Z上的一端,第一方向X、第二方向Y和第三方向Z两两垂直。
其中,第二段3123相对第一段3122弯折至本体部311在第二方向Y上的一侧,即汇流部312的第二段3123相对第一段3122弯折后使得第二段3123位于本体部311在第二方向Y上的一侧。示例性的,第二段3123与第一段3122相互垂直,即第二段3123的厚度方向与第一方向X一致。
通过将第二段3123设置为相对第一段3122弯折至本体部311在第二方上的一侧,并将连接管3124连接于凸起3123a在第三方向Z上的一侧,使得连接管3124与凸起3123a的连接位置不会占用热管理部件31在第一方向X上额外的空间,从而有利于节省热管理部件31在第一方向X上的占用空间。
在一些实施例中,参见图5和图6所示,连接管3124沿第三方向Z延伸。也就是说,连接管3124的延伸方向与第一方向X相互垂直。
通过将连接管3124设置为沿第三方向Z延伸的结构,使得连接管3124的延伸方向与第一方向X相互垂直,从而有利于优化连接管3124在第一方向X上的占用空间,以进一步节省热管理部件31在第一方向X上的占用空间。
在一些实施例中,请继续参见图5和图6所示,第二段3123远离第一段3122的一端形成有缺口3123b,缺口3123b与凸起3123a沿第三方向Z排布,缺口3123b用于容纳连接管3124的至少部分。
其中,第二段3123远离第一段3122的一端形成有缺口3123b,缺口3123b与凸起3123a沿第三方向Z排布,即第二段3123在第二方向Y上设置有凸起3123a的一端还对应形成有缺口3123b,且缺口3123b与凸起3123a沿第三方向Z布置,使得在第三方向Z上连接于凸起3123a的一侧的连接管3124能够容纳于缺口3123b内。
第二段3123远离第一段3122的一端上还形成有缺口3123b,且缺口3123b与凸起3123a沿第三方向Z排布,使得连接于凸起3123a在第三方向Z上的一侧的连接管3124能够容纳于缺口3123b内,一方面便于将连接管3124连接于凸起3123a上,有利于降低装配难度,另一方面能够有效节省热管理部件31在第一方向X上的占用空间,且能够优化热管理部件31在第三方向Z上的占用空间。
根据本申请的一些实施例,参照图9和图10,图9为本申请又一些实施例提供的热管理部件31的结构示意图,图10为图9所示的热管理部件31的C处的局部放大图。连接管3124连接于凸起3123a远离第一段3122的一端。也就是说,连接管3124连接于凸起3123a在第二方向Y上背离第一段3122的一端,使得第二段3123、凸起3123a和连接管3124沿第二方向Y依次排布。
通过将连接管3124连接在凸起3123a远离第一段3122的一端上,从而有利于减少汇流部312与连接管3124之间的干涉影响,有利于降低连接管3124与凸起3123a之间的装配难度。
在一些实施例中,参见图10所示,第二段3123相对第一段3122弯折至本体部311在第二方向Y上的一侧。连接管3124包括第一管段3124a和第二管段3124b,第一管段3124a连接凸起3123a和第二管段3124b,第一管段3124a沿第二方向Y延伸,第二管段3124b沿第三方向Z延伸,第一方向X、第二方向Y和第三方向Z两两垂直。
其中,第一管段3124a连接凸起3123a和第二管段3124b,第一管段3124a沿第二方向Y延伸,第二管段3124b沿第三方向Z延伸,即连接管3124为“L”型结构,使得连接管3124具有 相互垂直的第一管段3124a和第二管段3124b,第一管段3124a连接于凸起3123a并沿第二方向Y延伸,第二管段3124b连接于第一管段3124a远离凸起3123a的一端并沿第三方向Z延伸。
连接管3124设置有相互连接的第一管段3124a和第二管段3124b,通过将连接于凸起3123a上的第一管段3124a设置为沿第二方向Y延伸的结构,并将连接于第一管段3124a上的第二管段3124b设置为沿第三方向Z延伸的结构,使得连接管3124整体的延伸方向均与第一方向X相互垂直,从而有利于优化连接管3124在第一方向X上的占用空间,以节省热管理部件31在第一方向X上的占用空间。
根据本申请的一些实施例,参见图5所示,沿第二段3123的厚度方向,连接管3124不超出第二段3123的两侧。也就是说,在第二段3123的厚度方向上,连接管3124位于第二段3123的两侧之间。
通过将连接管3124设置为在第二段3123的厚度方向上不超出第二段3123的两侧,使得连接管3124在第二段3123的厚度方向上位于第二段3123的两侧之间,以使连接管3124不会占用额外的空间,有利于优化汇流部312的占用空间。
在一些实施例中,请继续参见图5所示,第二段3123的厚度方向与第一方向X一致。也就是说,第二段3123沿第二方向Y延伸,使得第二段3123与第一方向X相互垂直,以使连接管3124在第一方向X上不超出第二段3123的两侧。
通过将第二段3123的厚度方向设置为与第一方向X一致,使得第二段3123为弯折至与第一段3122相互垂直的结构,从而使得在第二段3123的厚度方向上不超出第二段3123的两侧的连接管3124在第一方向X上不会占用汇流部312额外的空间,进而有利于节省汇流部312在第一方向X上的占用空间。
根据本申请的一些实施例,参见图3和图4所示,本申请实施例还提供一种热管理系统30,热管理系统30包括多个以上任一方案的热管理部件31。
其中,多个热管理部件31沿第二方向Y间隔排布,即多个热管理部件31的本体部311为沿第二方向Y间隔设置的结构。示例性的,在图3中,热管理系统30包括四个热管理部件31,当然,在其他实施例中,热管理系统30也可以包括两个、三个、五个或六个等热管理部件31。
热管理系统30设置有多个热管理部件31,采用这种热管理系统30能够通过多个热管理部件31与电池100的内部进行换热,有利于提升热管理系统30的热管理能力。
根据本申请的一些实施例,参照图3,并请进一步参照图11,图11为图3所示的热管理系统30的D处的局部放大图。热管理系统30还可以包括输送管32,输送管32与多个热管理部件31的汇流腔3121均连通,输送管32被配置为向汇流腔3121内提供换热介质。
其中,输送管32起到输送或回收换热介质的作用,输送管32与多个热管理部件31的汇流腔3121均连通,以实现多个热管理部件31之间的并联。示例性的,在图3中,热管理系统30包括两个输送管32,两个输送管32分别设置于热管理部件31在第一方向X上的两端,使得设置于热管理部件31的两端的汇流部312的汇流腔3121分别与两个输送管32连通,从而实现换热介质在热管理系统30内的循环使用。
热管理系统30还设置有输送管32,且输送管32与多个热管理部件31的汇流腔3121均连通,使得输送管32能够同时向多个热管理部件31的汇流腔3121内提供换热介质,有利于提升热管理系统30的工作效率。
根据本申请的一些实施例,参见图11所示,热管理系统30还可以包括柔性连接件33,柔性连接件33与汇流部312一一对应设置,柔性连接件33连接第二段3123和输送管32,以使汇流腔3121与输送管32连通,柔性连接件33被配置为允许输送管32相对第二段3123活动。
其中,柔性连接件33与汇流部312一一对应设置,柔性连接件33连接第二段3123和输送管32,即每个热管理部件31的汇流部312对应设置一个柔性连接件33,且柔性连接件33起到连接汇流部312的第二段3123和输送管32的作用,以实现汇流腔3121与输送管32连通的同时实现输送管32能够相对汇流部312活动。当然,在其他实施例中,热管理系统30也可以不设置柔性连接件33,输送管32只需直接与汇流部312的第二段3123相连。
输送管32与热管理部件31的汇流部312的第二段3123通过柔性连接件33相连,以实现汇流腔3121与输送管32连通,采用这种结构的热管理系统30通过柔性连接件33能够实现输送管32相对汇流部312的第二段3123活动,从而便于将输送管32和汇流部312进行装配,并能够通过柔性连接件33吸收输送管32与汇流部312之间的装配公差,进而有利于提升输送管32与汇流 部312之间的装配精度,且有利于降低输送管32与汇流部312之间的装配难度。
在一些实施例中,柔性连接件33可以包括浮动接头或软管。浮动接头的具体结构可以参见相关技术,在此不再赘述。
示例性的,在图11中,柔性连接件33为软管,即输送管32通过软管与汇流部312的第二段3123相连,使得输送管32与汇流部312为相互可以活动的结构。
采用浮动接头或软管作为柔性连接件33连接输送管32和汇流部312的第二段3123,以实现输送管32能够相对汇流部312的第二段3123活动,这种结构简单,且便于实现。
根据本申请的一些实施例,请继续参见图11所示,汇流部312还包括连接管3124,连接管3124连接于第二段3123,连接管3124与汇流腔3121连通,柔性连接件33连通连接管3124和输送管32。也就是说,输送管32通过柔性连接件33与汇流部312的连接管3124相连,以实现输送管32与汇流部312的汇流腔3121连通。
通过在汇流部312的第二段3123上设置与汇流腔3121连通的连接管3124,连接管3124通过柔性连接件33与输送管32相连后能够实现输送管32与汇流部312的汇流腔3121连通,采用这种结构的汇流部312有利于降低柔性连接件33与汇流部312的第二段3123之间的连接难度,以降低柔性连接件33与汇流部312之间的装配难度。
根据本申请的一些实施例,参见图2、图3和图11所示,多个热管理部件31沿第二方向Y排布,输送管32设置于多个热管理部件31在第三方向Z上的一侧,第一方向X、第二方向Y和第三方向Z两两垂直。
示例性的,输送管32位于多个热管理部件31在第三方向Z上的上方,即输送管32位于多个热管理部件31在第三方向Z上靠近第一箱本体11的一侧。
通过将热管理系统30的多个热管理部件31设置为沿第二方向Y排布,且输送管32设置于多个热管理部件31在第三方向Z上的一侧,从而一方面有利于节省热管理部件31在第一方向X上的占用空间,以提升具有这种热管理系统30的电池100的内部空间利用率,另一方面便于对输送管32进行拔插,进而有利于降低输送管32的装配难度,且有利于在后期使用过程中对输送管32进行维修或更换,以降低热管理系统30的后续维护成本。
根据本申请的一些实施例,参见图2和图3所示,本申请实施例还提供一种电池100,电池100包括箱体10、多个电池单体20和以上任一方案的热管理系统30。多个电池单体20容纳于箱体10内,热管理系统30设置于箱体10内,热管理系统30被配置为管理电池单体20的温度。
在一些实施例中,参照图2,并请进一步参照图12和图13,图12为本申请一些实施例提供的电池100的热管理系统30与电池单体20的装配示意图,图13为图12所示的热管理系统30与电池单体20相互装配后的E处的局部放大图。第二段3123相对第一段3122弯折至本体部311在第二方向Y上的一侧,多个电池单体20沿第二方向Y排布,每相邻的两个电池单体20之间设置有热管理部件31,第二方向Y垂直于第一方向X。其中,本体部311和第一段3122均位于电池单体20在第二方向Y上的一侧,本体部311被配置为与电池单体20热交换,第二段3123位于电池单体20在第一方向X上的一侧。
示例性的,第二段3123与第一段3122相互垂直,即第一段3122沿第一方向X延伸,第二段3123沿第二方向Y延伸,使得汇流部312的第一段3122和本体部311均位于电池单体20在第二方向Y上的一侧,以便于汇流部312的第一段3122和本体部311相互连接,汇流部312的第二段3123位于电池单体20在第一方向X上的一侧,且第二段3123的厚度方向与第一方向X一致,以节省整体在第一方向X上的占用空间。
热管理部件31的本体部311和第一段3122均位于电池单体20在第二方向Y上的一侧,以实现本体部311与电池单体20之间的热交换,且能够有效保证本体部311与汇流部312的第一段3122之间具有足够的连接空间而保证连接强度和可靠性的。此外,通过将汇流部312的第二段3123设置为相对第一段3122弯折至本体部311在第二方向Y上的一侧,且位于电池单体20在第一方向X上的一侧,以节省汇流部312在第一方向X上的占用空间,从而有利于优化电池100的内部空间,以提高电池100内部的空间利用率,进而能够有效提升电池100的能量密度。
根据本申请的一些实施例,本申请实施例还提供了一种用电装置,用电装置包括以上任一方案的电池100,并且电池100用于为用电装置提供电能。
用电装置可以是前述任一应用电池100的设备或系统。
根据本申请的一些实施例,参见图4至图8所示,本申请提供了一种热管理部件31,热 管理部件31包括本体部311和两个汇流部312。本体部311沿第一方向X延伸,且本体部311为板状结构,本体部311的厚度方向为第二方向Y,本体部311的内部形成有多个介质流道3111。两个汇流部312分别设置于本体部311在第一方向X上的两端,汇流部312的内部形成有汇流腔3121,汇流腔3121与多个介质流道3111均连通。汇流部312包括一体成型的第一段3122和第二段3123,第一段3122沿第一方向X延伸并连接于本体部311,第二段3123相对第一段3122弯折设置至本体部311在第二方向Y上的一侧,第一段3122与第二段3123相互垂直。汇流部312还包括连接管3124,第二段3123在第二方向Y上远离第一段3122的一端形成有凸起3123a和缺口3123b,凸起3123a和缺口3123b沿第三方向Z排布,连接管3124连接于凸起3123a在第三方向Z上的一侧并与汇流腔3121连通,连接管3124沿第三方向Z延伸,连接管3124的至少部分容纳于缺口3123b内,第一方向X、第二方向Y和第三方向Z两两垂直。
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互结合。
以上仅为本申请的优选实施例而已,并不用于限制本申请,对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (23)

  1. 一种热管理部件,包括:
    本体部,沿第一方向延伸,所述本体部的内部形成有用于容纳换热介质的介质流道;以及
    汇流部,设置于所述本体部在所述第一方向上的一端,所述汇流部的内部形成有汇流腔,所述汇流腔与所述介质流道连通;
    其中,所述汇流部包括一体成型的第一段和第二段,所述第一段沿所述第一方向延伸并连接于所述本体部,所述第二段相对所述第一段弯折设置。
  2. 根据权利要求1所述的热管理部件,其中,所述本体部为板状结构,所述第二段相对所述第一段弯折至所述本体部在所述本体部的厚度方向上的一侧。
  3. 根据权利要求1或2所述的热管理部件,其中,所述第一段与所述第二段相互垂直。
  4. 根据权利要求1-3任一项所述的热管理部件,其中,所述热管理部件包括:
    两个所述汇流部,沿所述第一方向,两个所述汇流部的所述第一段分别连接于所述本体部的两端。
  5. 根据权利要求1-4任一项所述的热管理部件,其中,所述本体部的内部形成有多个所述介质流道,多个所述介质流道均与所述汇流腔连通。
  6. 根据权利要求1-5任一项所述的热管理部件,其中,所述汇流部还包括:
    连接管,连接于所述第二段,所述连接管与所述汇流腔连通。
  7. 根据权利要求6所述的热管理部件,其中,所述第二段远离所述第一段的一端形成有凸起,所述连接管连接于所述凸起。
  8. 根据权利要求7所述的热管理部件,其中,所述第二段相对所述第一段弯折至所述本体部在第二方向上的一侧,所述连接管连接于所述凸起在第三方向上的一端,所述第一方向、所述第二方向和所述第三方向两两垂直。
  9. 根据权利要求8所述的热管理部件,其中,所述连接管沿所述第三方向延伸。
  10. 根据权利要求8或9所述的热管理部件,其中,所述第二段远离所述第一段的一端形成有缺口,所述缺口与所述凸起沿所述第三方向排布,所述缺口用于容纳所述连接管的至少部分。
  11. 根据权利要求7所述的热管理部件,其中,所述连接管连接于所述凸起远离所述第一段的一端。
  12. 根据权利要求11所述的热管理部件,其中,所述第二段相对所述第一段弯折至所述本体部在第二方向上的一侧;
    所述连接管包括第一管段和第二管段,所述第一管段连接所述凸起和所述第二管段,所述第一管段沿所述第二方向延伸,所述第二管段沿第三方向延伸,所述第一方向、所述第二方向和所述第三方向两两垂直。
  13. 根据权利要求6-12任一项所述的热管理部件,其中,沿所述第二段的厚度方向,所述连接管不超出所述第二段的两侧。
  14. 根据权利要求13所述的热管理部件,其中,所述第二段的厚度方向与所述第一方向一致。
  15. 一种热管理系统,包括多个如权利要求1-14任一项所述的热管理部件。
  16. 根据权利要求15所述的热管理系统,其中,所述热管理系统还包括:
    输送管,与多个所述热管理部件的所述汇流腔均连通,所述输送管被配置为向所述汇流腔内提供所述换热介质。
  17. 根据权利要求16所述的热管理系统,其中,所述热管理系统还包括:
    柔性连接件,与所述汇流部一一对应设置,所述柔性连接件连接所述第二段和所述输送管,以使所述汇流腔与所述输送管连通,所述柔性连接件被配置为允许所述输送管相对所述第二段活动。
  18. 根据权利要求17所述的热管理系统,其中,所述柔性连接件包括浮动接头或软管。
  19. 根据权利要求17或18所述的热管理系统,其中,所述汇流部还包括:
    连接管,连接于所述第二段,所述连接管与所述汇流腔连通,所述柔性连接件连通所述连接管和所述输送管。
  20. 根据权利要求16-19任一项所述的热管理系统,其中,多个所述热管理部件沿第二方向排布,所述输送管设置于所述多个所述热管理部件在第三方向上的一侧,所述第一方向、所述第二方 向和所述第三方向两两垂直。
  21. 一种电池,包括:
    箱体;
    多个电池单体,容纳于所述箱体内;以及
    如权利要求15-20任一项所述的热管理系统,所述热管理系统设置于所述箱体内,所述热管理系统被配置为管理所述电池单体的温度。
  22. 根据权利要求21所述的电池,其中,所述第二段相对所述第一段弯折至所述本体部在第二方向上的一侧,多个所述电池单体沿所述第二方向排布,每相邻的两个所述电池单体之间设置有所述热管理部件,所述第二方向垂直于所述第一方向;
    其中,所述本体部和所述第一段均位于所述电池单体在所述第二方向上的一侧,所述本体部被配置为与所述电池单体热交换,所述第二段位于所述电池单体在所述第一方向上的一侧。
  23. 一种用电装置,包括如权利要求21或22所述的电池,所述电池用于提供电能。
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