Thermal management component, battery and electric equipment

Abstract

The invention discloses a heat management component, a battery and electric equipment. The heat management component comprises a body, a first guide plate and a first medium inlet and outlet. A first flow channel used for containing a heat exchange medium is formed in the body, and the body is provided with a first surface in the thickness direction of the body. The first flow guide plate is arranged on the first surface, a first groove is formed in the side, facing the first surface, of the first flow guide plate, the first groove and the first surface jointly define a second flow channel, the first surface is provided with a first through hole communicating with the first flow channel and the second flow channel, and the first medium inlet and outlet is connected to the first flow guide plate and communicates with the second flow channel. The structure of the heat management component can be optimized, the space occupied by the heat management component is reduced, and the energy density of the battery is improved.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular, to a thermal management component, a battery, and an electrical device. Background Art

[0002] With the development of new energy technologies, batteries are increasingly widely used. Batteries have high energy density, long service life, and environmental friendliness to the social environment, and have been widely used in passenger cars, commercial vehicles, electric bicycles, heavy trucks, energy storage facilities, battery swapping stations, engineering manufacturing, intelligent devices, etc. At the same time, it also promotes the technological development and research in the fields of communication terminals, medical devices, energy development, etc.

[0003] A battery includes a thermal management component and battery cells. The thermal management component is used to accommodate a heat exchange medium to adjust the temperature of multiple battery cells, so that the battery cells are within an appropriate temperature range, ensuring good charge and discharge capabilities and high reliability. When the volume of the battery is fixed, the larger the space occupied by the thermal management component, the smaller the space left for the battery cells, and the lower the energy density of the battery. How to optimize the structure of the thermal management component and reduce the occupied space of the thermal management component is an urgent problem to be solved in battery technology. Summary of the Invention

[0004] Embodiments of the present application provide a thermal management component, a battery, and an electrical device, which can optimize the structure of the thermal management component, reduce the occupied space of the thermal management component, and improve the energy density of the battery.

[0005] In a first aspect, an embodiment of the present application provides a thermal management component, which includes a body, a first flow guide plate, and a first medium inlet and outlet; a first flow channel for accommodating a heat exchange medium is formed inside the body, and the body has a first surface in its thickness direction; the first flow guide plate is disposed on the first surface, and a first groove is provided on a side of the first flow guide plate facing the first surface. The first groove and the first surface jointly define a second flow channel, and a first through hole communicating the first flow channel and the second flow channel is provided on the first surface; the first medium inlet and outlet is disposed on the first flow guide plate and communicates with the second flow channel.

[0006] In the above technical solution, the first flow guide plate and the body define the second flow channel, the first medium inlet and outlet communicates with the second flow channel, the second flow channel communicates with the first flow channel, and the first flow guide plate plays the role of a pipeline between the first medium inlet and outlet and the first flow channel. Such an arrangement makes the connection structure between the first flow channel and the first medium inlet and outlet simple and occupies a small space, thereby improving the energy density of the battery.

[0007] In some embodiments, a plurality of the first flow channels and the first through holes are provided, the first through holes are arranged corresponding to the first flow channels, and each of the first flow channels communicates with the second flow channel through the corresponding first through hole.

[0008] In the above technical solution, a plurality of first flow channels and first through holes are provided, the first through holes are arranged corresponding to the first flow channels, and each of the first flow channels communicates with the second flow channel through the corresponding first through hole. With such an arrangement, the heat exchange medium in the second flow channel can be divided into a plurality of first flow channels through a plurality of first through holes, or the heat exchange media in a plurality of first flow channels can converge into the second flow channel through a plurality of first through holes, making the heat exchange of the heat management component more uniform.

[0009] In some embodiments, the plurality of first flow channels are arranged at intervals in a first direction, and the plurality of first through holes are arranged at intervals in the first direction.

[0010] In the above technical solution, the arrangement directions of the plurality of first flow channels and the plurality of first through holes are the same, which is conducive to the corresponding arrangement of the first through holes and the first flow channels, thereby facilitating the second flow channel to extend in the first direction to correspond to the positions of the plurality of first through holes.

[0011] In some embodiments, the first through holes correspond to the first flow channels one by one.

[0012] In the above technical solution, the first through holes correspond to the first flow channels one by one, which can alleviate the pressure drop of the heat exchange medium, improve the consistency of the flow rate and velocity of the heat exchange medium in each first flow channel, and improve the heat exchange efficiency of the heat management component.

[0013] In some embodiments, a first sealing portion is formed between the first deflector plate and the body, and the first sealing portion is disposed around the first groove.

[0014] In the above technical solution, by providing the first sealing portion, the risk of leakage of the heat exchange medium from the second flow channel can be reduced, the reliability of the heat management component can be improved, and the reliability of the battery using the heat management component can be improved.

[0015] In some embodiments, the first deflector plate and the body are welded to form a first welding portion, and the first welding portion is the first sealing portion.

[0016] In the above technical solution, the first deflector plate and the body are welded, and the welding reduces the sealing interface, improves the sealing reliability between the first deflector plate and the body, and improves the connection stability between the body and the first deflector plate.

[0017] In some embodiments, the width of the second flow channel is greater than the width of the first flow channel.

[0018] In the above technical solution, the width of the second flow channel is relatively large, which can reduce the resistance suffered by the heat exchange medium in the second flow channel and alleviate the pressure drop of the heat exchange medium in the second flow channel.

[0019] In some embodiments, a second groove is further provided on one side of the first flow guide plate facing the first surface. The second groove and the first surface jointly define a third flow channel, and a second through hole communicating the first flow channel and the third flow channel is provided on the first surface; the heat management component further includes a second medium inlet and outlet, and the second medium inlet and outlet is arranged on the first flow guide plate and communicated with the third flow channel.

[0020] In the above technical solution, the first groove and the second groove are integrated on the first flow guide plate. The first flow guide plate not only plays a role in pipeline connection between the first medium inlet and outlet and the first flow channel, but also plays a role in pipeline connection between the second medium inlet and outlet and the third flow channel. In this way, the connection structure between the second medium inlet and outlet and the first flow channel also becomes simple, and the integration degree of the heat management component is higher.

[0021] In some embodiments, the heat management component further includes a second flow guide plate and a second medium inlet and outlet. The second flow guide plate is arranged on the first surface. A second groove is provided on one side of the second flow guide plate facing the first surface. The second groove and the first surface jointly define a third flow channel, and a second through hole communicating the first flow channel and the third flow channel is formed on the first surface; the second medium inlet and outlet is arranged on the second flow guide plate and communicated with the third flow channel.

[0022] In the above technical solution, the first medium inlet and outlet and the second medium inlet and outlet are arranged on different flow guide plates. In this way, the positions of the first medium inlet and outlet and the second medium inlet and outlet can be arranged separately according to needs, and the arrangement method is more flexible.

[0023] In some embodiments, the first flow channel has a first end and a second end, the first through hole is arranged at the first end, and the second through hole is arranged at the second end.

[0024] In the above technical solution, the first flow channel has a first end and a second end, the first through hole is arranged at the first end, and the second through hole is arranged at the second end. In this way, the flow path of the heat exchange medium in the first flow channel is long, and a heat management component with better heat exchange effect can be obtained.

[0025] In some embodiments, a plurality of first flow channels are provided, and the plurality of first flow channels are spaced apart along the first direction; the first flow channel includes a first section, a second section, and a third section, and the first section and the third section both extend along the second direction, and the first section and the third section are spaced apart along the first direction, one end of the first section is the first end, and the other end of the first section and one end of the third section are connected through the second section, and the other end of the third section is the second end, and the first direction and the second direction intersect.

[0026] In the above technical solution, the first end and the second end are located on the same side of the first flow channel, so that the first through hole and the second through hole can be arranged on the same side, and the second flow channel and the third flow channel can be arranged on the same side of the main body, so that the first medium inlet and outlet and the second medium inlet and outlet are arranged on the same side of the main body.

[0027] In some embodiments, along the second direction, the second end exceeds the first end.

[0028] In the above technical solution, the second end exceeds the first end so that the first end and the second end are offset in the second direction, which facilitates the staggered arrangement of the second flow channel and the third flow channel in the second direction.

[0029] In some embodiments, the body includes a first plate body and a second plate body which are stacked, a third groove is formed on a side of the first plate body facing the second plate body, the second plate body covers the opening of the first groove to form the first flow channel, and a side of the second plate body facing away from the first plate body is the first surface.

[0030] In the above technical solution, the main body is a split structure, which can reduce the difficulty of preparing the main body.

[0031] In some embodiments, the thickness of the first guide plate is greater than the thickness of the second plate body.

[0032] In the above technical solution, the thickness of the first guide plate is greater than that of the second plate body, so that the second flow channel can withstand the greater pressure brought by the heat exchange medium, improve the structural strength of the thermal management component, and reduce the risk of deformation of the thermal management component.

[0033] In some embodiments, the thickness of the first guide plate is greater than the thickness of the body.

[0034] In the above technical solution, the second flow channel can withstand a greater pressure brought by the heat exchange medium, thereby improving the structural strength of the thermal management component and reducing the risk of deformation of the thermal management component.

[0035] In some embodiments, a groove depth of the first groove is no greater than five times the thickness of the first guide plate.

[0036] In the above technical solution, the depth of the first groove is not greater than five times the thickness of the first guide plate, which facilitates the formation of the first groove by stamping. The second flow channel defined by the first groove can be relatively large, but the space occupied by the first guide plate will not be too large.

[0037] In a second aspect, an embodiment of the present application provides a battery, which includes the thermal management component provided in any one of the embodiments of the first aspect.

[0038] In a third aspect, an embodiment of the present application provides an electrical device, which includes the battery provided in the embodiment of the second aspect, and the battery is used to supply power to the electrical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0040] Figure 1 Structural schematic diagram of a vehicle for some embodiments of the present application;

[0041] Figure 2 Exploded schematic diagram of a battery for some embodiments of the present application;

[0042] Figure 3 Structural schematic diagram of a thermal management component for some embodiments of the present application;

[0043] Figure 4 Exploded schematic diagram of a thermal management component for some embodiments of the present application;

[0044] Figure 5 Structural schematic diagram of a main body for some embodiments of the present application, where the first flow channel is shown by a dashed line;

[0045] Figure 6 Structural schematic diagram of a first guide plate for some embodiments of the present application;

[0046] Figure 7 Structural schematic diagram of the first guide plate from another perspective for some embodiments of the present application;

[0047] Figure 8 Structural schematic diagram of a first water nozzle for some embodiments of the present application;

[0048] Figure 9 Partial cross-sectional view of a thermal management component for some embodiments of the present application;

[0049] Figure 10 For Figure 9Schematic diagram of the structure of some other embodiments of the first sealing portion;

[0050] Figure 11 Cross-sectional view of a heat management component according to some embodiments of the present application;

[0051] Figure 12 is Figure 11 Enlarged view of part A in

[0052] Figure 13 Schematic diagram of the structure of a heat management component according to some other embodiments of the present application;

[0053] Figure 14 Schematic diagram of the structure of the body according to some other embodiments of the present application;

[0054] Figure 15 Schematic diagram of the structure of the second deflector according to some embodiments of the present application;

[0055] Figure 16 Schematic diagram of the structure of the second deflector from another perspective according to some embodiments of the present application.

[0056] Icons: 100 - battery; 20 - box body; 21 - first part; 22 - second part; 23 - accommodation space; 10 - battery cell; 30 - heat management component; 31 - body; 311 - first plate body; 3111 - third groove; 312 - second plate body; 3121 - first surface; 31211 - first through hole; 31212 - second through hole; 313 - first flow channel; 313a - first section; 3131 - first end; 313b - second section; 313c - third section; 3132 - second end; 32 - first deflector; 321 - first groove; 322', 322 - second groove; 323 - first medium inlet and outlet; 324', 324 - second medium inlet and outlet; 325 - first convex part; 326 - second convex part; 33 - first nozzle; 331 - first connection hole; 332 - first connection part; 34', 34 - second nozzle; 341 - second connection hole; 342 - second connection part; 35 - second flow channel; 36', 36 - third flow channel; 37 - first sealing portion; 371 - first welding part; 38 - second sealing portion; 381 - second welding part; 39 - second deflector; 1 - locking part; 1000 - vehicle; 200 - motor; 300 - controller; X - first direction; Y - second direction; Z - thickness direction.

[0057] The drawings are not drawn to actual scale. Detailed implementation manners

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application.

[0059] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used in the description of this application in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0060] Referring to "embodiments" in this application means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0061] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", 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 directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0062] In the description of this application, it should be noted that unless otherwise stated, "a plurality of" means two or more; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0063] In this application, the term "or" is merely a description of the relationship between associated objects, indicating that there can be two relationships. For example, A or B can represent two situations: A exists alone and B exists alone.

[0064] In the embodiments of this application, the same reference numerals represent the same components. And for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components in the embodiments of this application shown in the drawings, as well as the overall thickness, length, width, etc. of the integrated device, are only for illustrative purposes and should not constitute any limitation to this application.

[0065] The term "a plurality of" as used in this application means two or more (including two).

[0066] In this application, the battery cell may include, but is not limited to, lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, magnesium-ion batteries, etc. The battery cell includes, but is not limited to, cylindrical, flat, cuboid or other shapes, etc. Generally, the battery cell includes cylindrical battery cells, square battery cells, soft-pack battery cells, etc. in terms of the packaging method.

[0067] The battery cell includes an electrode assembly and an electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly works by the movement of metal ions between the positive electrode sheet and the negative electrode sheet. Metal ions (such as lithium ions) are embedded and extracted back and forth between the positive electrode sheet and the negative electrode sheet. The separator is arranged between the positive electrode sheet and the negative electrode sheet, which can play a role in preventing the short circuit between the positive electrode sheet and the negative electrode sheet, and at the same time can allow active ions to pass through.

[0068] The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode current collector. The positive electrode current collector without the coated positive electrode active material layer protrudes from the positive electrode current collector with the coated positive electrode active material layer. The positive electrode current collector without the coated positive electrode active material layer serves as the positive electrode tab.

[0069] Taking a lithium-ion battery as an example, the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, etc. The positive electrode current collector can adopt a metal foil or a composite current collector. For example, as the metal foil, aluminum with silver plating on the surface, stainless steel with silver plating on the surface, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium, etc. can be adopted. The composite current collector can include a polymer material base layer and a metal layer. The composite current collector can be formed by forming a metal material (such as 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.).

[0070] The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The negative electrode current collector without the coated negative electrode active material layer protrudes from the negative electrode current collector with the coated negative electrode active material layer. The negative electrode current collector without the coated negative electrode active material layer serves as the negative electrode tab.

[0071] The negative electrode current collector can be a metal foil or a composite current collector. For example, as the metal foil, aluminum with a silver-plated surface, stainless steel with a silver-plated surface, stainless steel, copper, aluminum, nickel, carbon electrodes, carbon, nickel, titanium, etc. can be used. The negative electrode active material can be carbon or silicon, etc.

[0072] To ensure that large currents can pass through without fusing, the number of positive electrode tabs is multiple and they are stacked together, and the number of negative electrode tabs is multiple and they are stacked together. The material of the separator can be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly can be a wound structure or a stacked structure.

[0073] 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. For example, the battery mentioned in the present application can include a battery module or a battery pack, etc. A battery generally includes a box for encapsulating one or more battery cells. The box can reduce the influence of liquid or other foreign objects on the charging or discharging of the battery cells.

[0074] In some embodiments, the battery can be a battery module. When there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0075] In some embodiments, the battery can be a battery pack. The battery pack includes a box and battery cells, and the battery cells or battery modules are accommodated in the box.

[0076] In some embodiments, multiple battery cells can be first integrated into at least one battery module, and then the battery module is installed in the box to form a battery pack form. In this embodiment, auxiliary structural members such as crossbeams can be provided between the battery modules to improve the installation stability of the battery modules in the box.

[0077] In some embodiments, the box can be a part of the chassis structure of a vehicle. For example, a part of the box can become at least a part of the floor of the vehicle, or a part of the box can become at least a part of the crossbeam and longitudinal beam of the vehicle.

[0078] In some embodiments, the battery can be an energy storage device. The energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0079] The development of battery technology needs to consider various design factors simultaneously. For example, performance parameters such as energy density, cycle life, discharge capacity, charge and discharge rate, etc. In addition, the reliability of the battery also needs to be considered. Among them, whether the battery temperature is appropriate is one of the important factors affecting the reliability of the battery. If the battery temperature is too high, it may cause thermal runaway inside the battery cell, resulting in a sudden increase in pressure or temperature, and in severe cases, it can cause the battery cell to explode and catch fire. If the battery temperature is too low, the battery may not be able to charge and discharge normally, affecting the normal use of the battery and the reliability of the battery.

[0080] Therefore, the battery generally also includes a thermal management component. The thermal management component is used to accommodate a heat exchange medium to adjust the temperature of multiple battery cells, so that the battery cells are within an appropriate temperature range, ensuring good charge and discharge capabilities and high reliability.

[0081] In order to lead the medium inlet and outlet of the thermal management component to the required position for convenient connection with external pipelines, in the related art, a first water nozzle is usually connected to the thermal management component, a pipeline is connected through the first water nozzle, and a second water nozzle is connected to the other end of the pipeline. The second water nozzle is connected to the external pipeline, and a flange is provided on the second water nozzle to fix the second water nozzle. This results in a large number of components, many sealing interfaces required between components, difficult sealing, increased assembly difficulty of the thermal management component, and large occupied space.

[0082] In view of this, in order to solve the problem of a large number of components of the thermal management component, the present application discloses a technical solution. The thermal management component includes a body, a first flow guide plate, and a first medium inlet and outlet. There is a first flow channel inside the body. The first flow guide plate is arranged on one side of the body. A first groove is provided on the side of the first flow guide plate facing the body. The first groove and the body jointly define a second flow channel. The body is provided with a first through hole communicating the first flow channel and the second flow channel; the first medium inlet and outlet is connected to the first flow guide plate and communicates with the second flow channel.

[0083] In such a thermal management component, pipelines, flanges and their related connecting components are cancelled. The second flow channel is defined by the first flow guide plate, and the position of the first medium inlet and outlet is arranged, which simplifies the number of components, optimizes the structure of the thermal management component, reduces the occupied space of the thermal management component, and improves the energy density of the battery.

[0084] The technical solution disclosed in the embodiments of the present application is applicable to but not limited to batteries and electrical equipment using batteries.

[0085] The electrical equipment can be a vehicle, a mobile phone, a portable device, a laptop, a ship, a spacecraft, an electric toy, an electric tool, etc. The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended electric vehicle, etc.; The spacecraft includes an airplane, a rocket, a space shuttle, a spaceship, etc.; The electric toy includes a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy, an electric airplane toy, etc.; The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool and a railway electric tool, for example, an electric drill, an electric grinding wheel, an electric wrench, an electric screwdriver, a hammer drill, an impact electric drill, a concrete vibrator, a planer, etc.

[0086] For the convenience of description, the following embodiments will take the electrical equipment as a vehicle as an example for illustration.

[0087] Please refer to Figure 1 , Figure 1 , which is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present application. A battery 100 is disposed inside the vehicle 1000. The battery 100 can be disposed at the bottom, head or tail of the vehicle 1000. The battery 100 can be used for power supply of the vehicle 1000. For example, the battery 100 can be used as the operating power source of the vehicle 1000.

[0088] The vehicle 1000 may further include a controller 300 and a motor 200. The controller 300 is used to control the battery 100 to supply power to the motor 200. For example, it is used for the working power requirements during the start, navigation and driving of the vehicle 1000.

[0089] In some embodiments of the present application, the battery 100 can not only be used as the operating power source of the vehicle 1000, but also be used as the driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0090] In some embodiments, please refer to Figure 2 , Figure 2 , which is an exploded schematic diagram of a battery 100 according to some embodiments of the present application. The battery 100 includes a plurality of battery cells 10. The plurality of battery cells 10 can be connected in series, parallel or in a combination of series and parallel. Among them, the combination of series and parallel means that there are both series and parallel connections among the plurality of battery cells 10.

[0091] In some embodiments, the battery 100 may further include a busbar component (not shown in the figure). The plurality of battery cells 10 can be electrically connected through the busbar component to achieve series, parallel or combined series and parallel connections of the plurality of battery cells 10.

[0092] The busbar component can be a metal conductor, such as copper, iron, aluminum, steel, aluminum alloy, etc.

[0093] In some embodiments, the battery 100 may further include a housing 20 for accommodating the battery cells 10. The housing 20 may include a first part 21 and a second part 22, and the first part 21 and the second part 22 are covered with each other to define an accommodation space 23 for accommodating the battery cells 10. Of course, the connection between the first part 21 and the second part 22 can be sealed by a sealing element (not shown in the figure), and the sealing element can be an O-ring, sealant, etc.

[0094] Among them, the first part 21 and the second part 22 can be in various shapes, such as a cuboid, a cylinder, etc. The first part 21 can be a hollow structure with one side open, and the second part 22 can also be a hollow structure with one side open. The open side of the second part 22 covers the open side of the first part 21, then the housing 20 with the accommodation space 23 is formed. Of course, it can also be that the first part 21 is a hollow structure with one side open, and the second part 22 is a plate-like structure. The second part 22 covers the open side of the first part 21, then the housing 20 with the accommodation space 23 is formed.

[0095] In some embodiments, the battery 100 may further include a thermal management component 30 for accommodating a heat exchange medium to adjust the temperature of the battery cells 10.

[0096] The heat exchange medium here is a fluid, and the heat exchange medium can be a liquid or a gas. Adjusting the temperature means heating or cooling multiple battery cells 10, and the fluid can be referred to as the heat exchange medium. In the case of cooling or lowering the temperature of the battery cells 10, the thermal management component 30 is used to accommodate a cooling fluid to lower the temperature of multiple battery cells 10. At this time, the thermal management component 30 can also be called a cooling component, a cooling system or a cooling plate, etc., and the fluid it accommodates can also be called a cooling medium or a cooling fluid, and more specifically, it can be called a coolant or a cooling gas. In addition, the thermal management component 30 can also be used for heating to raise the temperature of multiple battery cells 10. Optionally, the fluid can flow in a cycle to achieve a better temperature adjustment effect. Optionally, the fluid can be water, a mixture of water and ethylene glycol, or air, etc.

[0097] The specific structure of the thermal management component 30 will be described in detail below with reference to the accompanying drawings.

[0098] Figure 3 is a schematic structural diagram of the thermal management component 30 according to some embodiments of the present application; Figure 4 is an exploded schematic diagram of the thermal management component 30 according to some embodiments of the present application; Figure 5 is a schematic structural diagram of the body 31 according to some embodiments of the present application, in which the first flow channel 313 is shown by a dotted line; Figure 6 is a schematic structural diagram of the first flow guide plate 32 according to some embodiments of the present application; Figure 7Schematic structural diagram of another perspective of the first flow guide plate 32 in some embodiments of the present application.

[0099] Referring to Figures 5 to 7 , in some embodiments, the thermal management component 30 includes a body 31, a first flow guide plate 32, and a first medium inlet / outlet 323. A first flow channel 313 for accommodating a heat exchange medium is formed inside the body 31, and the body 31 has a first surface 3121 in its thickness direction Z. The first flow guide plate 32 is disposed on the first surface 3121. A first groove 321 is provided on the side of the first flow guide plate 32 facing the first surface 3121. The first groove 321 and the first surface 3121 jointly define a second flow channel 35. A first through hole 31211 communicating the first flow channel 313 and the second flow channel 35 is provided on the first surface 3121. The first medium inlet / outlet 323 is disposed on the first flow guide plate 32 and communicates with the second flow channel 35.

[0100] The body 31 is a component for accommodating a heat exchange medium to perform heat exchange with the battery cell 10, and the first flow channel 313 is a channel formed inside the body 31 for accommodating the heat exchange medium.

[0101] The first medium inlet / outlet 323 can be a medium inlet, and the first medium inlet / outlet 323 can also be a medium outlet. Exemplarily, the first medium inlet / outlet 323 is a medium inlet.

[0102] The first flow guide plate 32 is disposed on the first surface 3121, wherein the side of the body 31 facing the first flow guide plate 32 is the first surface 3121. The first flow guide plate 32 and the body 31 can be connected by means of bonding, welding, clamping, etc.

[0103] A first groove 321 is provided on the side of the first flow guide plate 32 facing the first surface 3121. The first groove 321 and the first surface 3121 jointly define a second flow channel 35. It can be understood that the first surface 3121 covers the opening of the first groove 321 to form the second flow channel 35. The second flow channel 35 is located between the body 31 and the first flow guide plate 32, and the second flow channel 35 shares the wall portion of the body 31 where the first surface 3121 is located with the first flow channel 313.

[0104] The first flow guide plate 32 can be stamped to form the first groove 321, or the first flow guide plate 32 can also be machined from a plate to form the first groove 321. Exemplarily, as Figure 6 shown, the first groove 321 is formed by stamping, so as to form a first convex portion 325 corresponding to the position of the first groove 321 on the side of the first flow guide plate 32 facing away from the first surface 3121.

[0105] The first surface 3121 is provided with a first through hole 31211 that communicates the first flow channel 313 and the second flow channel 35. Understandably, the first through hole 31211 penetrates the first surface 3121, and the first flow channel 313 and the second flow channel 35 are connected through the first through hole 31211, so that the heat exchange medium can flow between the first flow channel 313 and the second flow channel 35. The shape of the first through hole 31211 includes, but is not limited to, circular, square, oval, irregular, etc.

[0106] The first medium inlet / outlet 323 is arranged on the first deflector 32 and communicates with the second flow channel 35. It can be understood that if the first medium inlet / outlet 323 is a medium inlet, the heat exchange medium first flows into the second flow channel 35 from the first medium inlet / outlet 323, and then flows through the second flow channel 35 to the first flow channel 313. If the first medium inlet / outlet 323 is a heat exchange medium outlet, the heat exchange medium flows from the first flow channel 313 into the second flow channel 35, and then flows out of the first medium inlet / outlet 323 through the second flow channel 35.

[0107] It can be understood that the first medium inlet / outlet 323 communicates with the second flow channel 35, the second flow channel 35 communicates with the first flow channel 313, and the second flow channel 35 connects the first medium inlet / outlet 323 and the first flow channel 313. That is, the first deflector 32 can play a role of pipeline connection between the first medium inlet / outlet 323 and the first flow channel 313. Therefore, there is no need to set up a pipeline connection between the first medium inlet / outlet 323 and the first flow channel 313, nor is it necessary to set up a flange for fixing the pipeline.

[0108] In this embodiment, the first deflector 32 and the body 31 define the second flow channel 35. The first medium inlet / outlet 323 communicates with the second flow channel 35, and the second flow channel 35 communicates with the first flow channel 313. The first deflector 32 plays the role of a pipeline between the first medium inlet / outlet 323 and the first flow channel 313.

[0109] In such a thermal management component 30, pipelines, flanges and their related connection components are cancelled. The second flow channel 35 is defined by the first deflector 32, and the position of the first medium inlet / outlet 323 is arranged. In this way, the number of components is simplified, the structure of the thermal management component 30 is optimized, the space occupied by the thermal management component is reduced, and the energy density of the battery is increased.

[0110] Specifically, the first deflector 32 has a smaller size in the Z direction of the thickness of the body 31, which is beneficial to optimizing the size of the thermal management component 30 in the Z direction of the thickness, increasing the proportion of the battery cells 10 per unit volume in the battery 100, and increasing the energy density of the battery 100 using the thermal management component 30.

[0111] The reduction in the number of components reduces the number of interfaces that need to be sealed, lowers the assembly difficulty of the heat management component 30, and reduces the manufacturing cost of the heat management component 30.

[0112] In addition, the extending direction of the second flow channel 35 can be arranged as required, so as to arrange the first medium inlet / outlet 323 at the desired position, making the position arrangement of the first medium inlet / outlet 323 more flexible.

[0113] In addition, the first flow guiding plate 32 and the body 31 define the second flow channel 35. The second flow channel 35 can buffer the heat exchange medium, so that the heat exchange medium enters the first flow channel 313 after buffering, reducing the risk that the heat exchange medium directly enters the first flow channel 313 from the first medium inlet / outlet 323 and causing deformation of the wall of the body 31. Moreover, the first flow guiding plate 32 can strengthen a local part of the body 31, reducing the risk of deformation of the body 31.

[0114] Figure 8 It is a schematic structural view of the first water nozzle 33 of some embodiments of the present application.

[0115] First, refer to Figure 8 , and then in combination with reference to Figure 6 and Figure 7 , in some embodiments, the heat management component further includes a first water nozzle 33. The first water nozzle 33 has a first connection portion 332, and the first connection portion 332 is inserted into the first medium inlet / outlet 323. The first connection portion 332 and the first flow guiding plate 32 can be welded from one side of the first groove 321 to realize the connection between the first water nozzle 33 and the first flow guiding plate 32, and then the first flow guiding plate 32 is connected to the body 31 to complete the assembly of the heat management component 30.

[0116] Among them, the first water nozzle 33 can be connected to the first flow guiding plate 32 by means of bonding, welding, etc.

[0117] As Figure 8 shown, in some embodiments, the first water nozzle 33 has a first connection hole 331, and the first connection hole 331 communicates with the second flow channel 35. The first connection hole 331 can also be provided with structures such as threads to facilitate the connection between the first water nozzle 33 and other external components to realize the heat exchange cycle.

[0118] Refer to Figure 4 , in some embodiments, there are multiple first flow channels 313 and first through holes 31211. The first through holes 31211 are arranged corresponding to the first flow channels 313, and each first flow channel 313 communicates with the second flow channel 35 through the corresponding first through hole 31211.

[0119] The first through hole 31211 is correspondingly arranged with the first flow channel 313. It should be noted that one first through hole 31211 can correspond to two or more first flow channels 313, or two or more first through holes 31211 can correspond to one first flow channel 313, or the first through holes 31211 and the first flow channels 313 can correspond one by one. Exemplarily, as Figure 4 and Figure 5 shown, the first through holes 31211 and the first flow channels 313 correspond one by one, and one first through hole 31211 corresponds to one first flow channel 313.

[0120] Each first flow channel 313 is communicated with the second flow channel 35 through the corresponding first through hole 31211. It can be understood that if one first through hole 31211 corresponds to two first flow channels 313, the first through hole 31211 will communicate the two first flow channels 313 with the second flow channel 35, that is, the two first flow channels 313 are communicated with the second flow channel 35 through the same first through hole 31211; if two first through holes 31211 correspond to one first flow channel 313, the two first through holes 31211 will communicate one first flow channel 313 with the second flow channel 35, that is, one first flow channel 313 can be communicated with the second flow channel 35 through two first through holes 31211; if the first through holes 31211 and the first flow channels 313 correspond one by one, one first through hole 31211 will communicate one first flow channel 313 with the second flow channel 35, that is, one first flow channel 313 is communicated with the second flow channel 35 through one first through hole 31211.

[0121] It is also possible to control the size of the first through hole 31211, so as to control the flow rate of the heat exchange medium distributed to different first flow channels 313.

[0122] In this embodiment, there are multiple first flow channels 313 and multiple first through holes 31211. The first through holes 31211 are correspondingly arranged with the first flow channels 313, and each first flow channel 313 is communicated with the second flow channel 35 through the corresponding first through hole 31211. With such an arrangement, the heat exchange medium in the second flow channel 35 can be divided into multiple first flow channels 313 through multiple first through holes 31211, or the heat exchange medium in multiple first flow channels 313 can converge to the second flow channel 35 through multiple first through holes 31211, making the heat exchange effect of the heat management component 30 more uniform.

[0123] Referring to Figure 4 , in some embodiments, multiple first flow channels 313 are arranged at intervals along the first direction X, and multiple first through holes 31211 are arranged at intervals along the first direction X.

[0124] It can be understood that the arrangement direction of multiple first flow channels 313 is the same as the arrangement direction of multiple first through holes 31211.

[0125] A plurality of first flow channels 313 are arranged at intervals along the first direction X. A plurality of first through holes 31211 are also arranged at intervals along the first direction X. The arrangement direction of the plurality of first flow channels 313 is the same as the arrangement direction of the plurality of first through holes 31211, which is conducive to the corresponding arrangement of the first through holes 31211 and the first flow channels 313, so that it is convenient for the second flow channel 35 to extend along the first direction X and correspond to the positions of the plurality of first through holes 31211.

[0126] Refer to Figure 4 and Figure 5 , in some embodiments, the first through holes 31211 and the first flow channels 313 are in one-to-one correspondence.

[0127] That is, one first through hole 31211 connects one first flow channel 313 with the second flow channel 35, and one first flow channel 313 is connected to the second flow channel 35 through one first through hole 31211.

[0128] The one-to-one correspondence between the first through holes 31211 and the first flow channels 313 can relieve the pressure drop of the heat exchange medium, improve the consistency of the flow rate and velocity of the heat exchange medium in each first flow channel 313, and improve the heat exchange efficiency of the heat management component 30.

[0129] Specifically, if the first medium inlet and outlet 323 is a medium inlet, the heat exchange medium entering the second flow channel 35 from the first medium inlet and outlet 323 can uniformly flow into the first flow channel 313 through the corresponding first through holes 31211; if the first medium inlet and outlet 323 is a heat exchange medium outlet, the heat exchange medium in the first flow channel 313 can uniformly flow into the second flow channel 35 through the corresponding first through holes 31211 and then flow out of the first medium inlet and outlet 323.

[0130] Refer to Figure 9 , Figure 9 This is a partial cross-sectional view of the heat management component 30 according to some embodiments of the present application. In some embodiments, a first sealing portion 37 is formed between the first guide plate 32 and the body 31, and the first sealing portion 37 surrounds the first groove 321.

[0131] Since the second flow channel 35 is defined between the first guide plate 32 and the body 31, there is a gap between the first guide plate 32 and the body 31, and there is a risk of leakage of the heat exchange medium in the second flow channel 35, so sealing is required.

[0132] The first sealing portion 37 is a sealing structure that plays a sealing role between the first guide plate 32 and the body 31. The first sealing portion 37 surrounds the first groove 321. Understandably, the first sealing portion 37 surrounds the second flow channel 35 to reduce the possibility of leakage of the heat exchange medium.

[0133] The first sealing portion 37 includes, but is not limited to, gaskets, colloids, weld marks, etc. Exemplarily, as Figure 9 shown, the first sealing portion 37 is a gasket, and the first flow guide plate 32 is connected to the body 31 through a locking member 1 on the outside of the gasket. The structure of the locking member 1 can be various. For example, screws, bolts, etc.

[0134] Providing the first sealing portion 37 can reduce the risk of heat exchange medium leakage from the second flow channel 35, improve the reliability of the heat management component 30, and improve the reliability of the battery 100 using the heat management component 30.

[0135] Refer to Figure 10 , Figure 10 is Figure 9 a schematic structural diagram of another embodiment of the first sealing portion 37 of

[0136] Understandably, the first flow guide plate 32 and the body 31 are welded to form a first welding portion 371, and the first welding portion 371 is the first sealing portion 37.

[0137] In order to improve the sealing performance and connection stability between the first flow guide plate 32 and the body 31, a weld mark can also be formed by welding around the edge of the first flow guide plate 32 in a circle.

[0138] The first flow guide plate 32 and the body 31 are welded, and the welding reduces the sealing medium, improves the sealing performance between the first flow guide plate 32 and the body 31, and improves the connection stability between the body 31 and the first flow guide plate 32.

[0139] Refer to Figure 10 , Figure 11 and Figure 12 , Figure 11 is a cross-sectional view of the heat management component 30 according to some embodiments of the present application; Figure 12 is Figure 11 an enlarged view of part A in

[0140] The width of the second flow channel 35 is relatively large, which can reduce the resistance of the heat exchange medium in the second flow channel 35 and relieve the pressure drop of the heat exchange medium in the second flow channel 35.

[0141] In some embodiments, a plurality of first through-holes 31211 and a plurality of second through-holes 31212 are provided. A plurality of first through-holes 31211 and a plurality of first flow channels 313 are provided. The first through-holes 31211 and the first flow channels 313 are arranged at intervals along the first direction X. The first through-holes 31211 and the first flow channels 313 correspond to each other one by one. Each first flow channel 313 communicates with the second flow channel 35 through the corresponding first through-hole 31211, and the width of the second flow channel 35 is greater than the width of the first flow channel 313.

[0142] Generally, the pressure drop at the positions of the heat exchange medium inlet and outlet is large, resulting in uneven flow velocities of the heat exchange medium in each of the first flow channels 313. In this embodiment, the first through-holes 31211 and the first flow channels 313 correspond to each other one by one and the width of the second flow channel 35 is greater than the width of the first flow channel 313, which can relieve the pressure drop of the heat exchange medium and balance the flow rates of the heat exchange medium in each of the first flow channels 313, improving the heat exchange effect of the heat management component 30.

[0143] Referring to Figure 10 and Figure 12 , in some embodiments, the width of the second flow channel 35 is W2, the width of the first flow channel 313 is W1, 8 mm ≤ W2 ≤ 100 mm, and 4 mm ≤ W1 ≤ 30 mm.

[0144] Exemplarily, W2 can be 8 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, 70 mm, 75 mm, 80 mm, 85 mm, 90 mm, 95 mm, 100 mm, etc. It should be understood that since it is impossible to exhaustively list all the values between 8 mm and 100 mm, several intermediate values are listed here as examples. It can be understood that any value in between can be used as the width of the second flow channel 35.

[0145] Exemplarily, W1 can be 4 mm, 7 mm, 10 mm, 13 mm, 15 mm, 17 mm, 20 mm, 23 mm, 25 mm, 28 mm, 30 mm, etc. It should be understood that since it is impossible to exhaustively list all the values between 4 mm and 30 mm, several intermediate values are listed here as examples. It can be understood that any value in between can be used as the width of the first flow channel 313.

[0146] In some embodiments, 8 mm ≤ W2 ≤ 50 mm, and 10 mm ≤ W1 ≤ 25 mm.

[0147] Referring to Figure 10 , in some embodiments, the thickness of the first deflector 32 is H1, the depth of the first groove 321 is H2, and the depth H2 of the first groove 321 is not greater than five times the thickness H1 of the first deflector 32.

[0148] If the first deflector 32 is stamped to form a first groove 321, the stamping depth is the depth of the first groove 321.

[0149] In this embodiment, the groove depth of the first groove 321 is not greater than five times the thickness of the first deflector 32, which facilitates the formation of the first groove 321 by stamping. The first groove 321 can define a second flow channel 35 with sufficient capacity space, and the first deflector 32 occupies a small space.

[0150] It can be understood that in this embodiment, the thickness of the first deflector 32 is less than the depth of the first groove 321. Compared with the first groove 321, the thickness of the thinner part of the first deflector 32 is the thickness of the first deflector 32.

[0151] In some embodiments, the thermal management component 30 further includes a second medium inlet / outlet 324. It can be understood that the first medium inlet / outlet 323 is also an inlet / outlet of the heat exchange medium. If the first medium inlet / outlet 323 is a medium inlet, the second medium inlet / outlet 324 can be used as the heat exchange medium outlet. If the first medium inlet / outlet 323 is the heat exchange medium outlet, the second medium inlet / outlet 324 can be used as the medium inlet. Exemplarily, if the first medium inlet / outlet 323 is the medium inlet, the second medium inlet / outlet 324 is the heat exchange medium outlet.

[0152] Refer to Figures 3 to 7 , in some embodiments, a second groove 322 is further provided on the side of the first deflector 32 facing the first surface 3121. The second groove 322 and the first surface 3121 jointly define a third flow channel 36. The first surface 3121 is provided with a second through hole 31212 communicating the first flow channel 313 and the third flow channel 36. The thermal management component 30 further includes a second medium inlet / outlet 324, and the second medium inlet / outlet 324 is provided on the first deflector 32 and communicates with the third flow channel 36.

[0153] The second groove 322 and the first surface 3121 jointly define the third flow channel 36. It can be understood that the first groove 321 and the second groove 322 are integrated on the first deflector 32, and the first surface 3121 also covers the opening of the second groove 322 to form the third flow channel 36. The third flow channel 36 is also located between the body 31 and the first deflector 32. The third flow channel 36 and the first flow channel 313 share the wall portion of the body 31 where the first surface 3121 is located.

[0154] The first deflector 32 can be stamped to form the second groove 322, or the first deflector 32 can be machined from a plate to form the second groove 322. Exemplarily, as Figure 6 shown, the second groove 322 is formed by stamping to form a second convex portion 326 corresponding to the position of the second groove 322 on the side of the first deflector 32 facing away from the first surface 3121.

[0155] The second surface is provided with a second through hole 31212 that connects the first flow channel 313 and the third flow channel 36. Understandably, the second through hole 31212 penetrates the first surface 3121, and the first flow channel 313 and the third flow channel 36 are connected through the first through hole 31211, so that the heat exchange medium can flow between the first flow channel 313 and the third flow channel 36. The shape of the second through hole 31212 includes but is not limited to circular, square, oval, irregular, etc.

[0156] It can be understood that the second medium inlet / outlet 324 is connected to the third flow channel 36, the third flow channel 36 is connected to the first flow channel 313, and the third flow channel 36 connects the second medium inlet / outlet 324 and the first flow channel 313.

[0157] In this embodiment, the first groove 321 and the second groove 322 are integrated into the first deflector 32. The first deflector 32 not only plays a role in pipeline connection between the first water nozzle 33 and the first flow channel 313, but also plays a role in pipeline connection between the second medium inlet / outlet 324 and the third flow channel 36. In this way, the connection structure between the second medium inlet / outlet 324 and the first flow channel 313 becomes simple, and the integration degree of the heat management component 30 is higher.

[0158] Refer to Figure 3 and, in combination with reference to Figure 6 , Figure 7 and Figure 8 , in some embodiments, the heat management component 30 further includes a second water nozzle 34. The structure of the second water nozzle 34 may be the same as the structure of the first water nozzle 33, or the structure of the second water nozzle 34 may be different from the structure of the first water nozzle 33. Exemplarily, as Figure 8 shown, the structure of the second water nozzle 34 is the same as the structure of the first water nozzle 33. Specifically, the second water nozzle 34 has a second connecting portion 342, and the second medium inlet / outlet 324 is used for the second connecting portion 342 to be inserted.

[0159] The second water nozzle 34 can be connected to the first deflector 32 by means of bonding, welding, etc.

[0160] In some embodiments, the second water nozzle 34 is formed with a second connecting hole 341, and the second connecting hole 341 is communicated with the third flow channel 36. The second connecting hole 341 can also be provided with structures such as threads to facilitate the connection of the second water nozzle 34 with other external components to realize the heat exchange cycle.

[0161] Refer to Figure 9 , in some embodiments, a second sealing portion 38 is formed between the first deflector 32 and the body 31. The second sealing portion 38 is disposed around the second groove 322 to reduce the risk of leakage of the heat exchange medium from the third flow channel 36.

[0162] Refer toFigure 10 In some embodiments, the first flow guide plate 32 is welded to the body 31 to form a second welding portion 381, and the second welding portion 381 serves as the second sealing portion 38.

[0163] Refer to Figure 6 In some embodiments, the second flow channel 35 extends in an L shape. The second flow channel 35 includes a long side and a short side. The first medium inlet / outlet 323 is disposed on the short side. The third flow channel 36 extends linearly, and the third flow channel 36 is parallel to the long side of the second flow channel 35, and the short side of the third flow channel 36 and the second flow channel 35 are on the same side of the long side of the second flow channel 35.

[0164] Further, along the first direction X, the first medium inlet / outlet 323 and the second medium inlet / outlet 324 are disposed on opposite sides of the first flow guide plate 32.

[0165] In other embodiments, the second medium inlet / outlet 324 may not be disposed on the first flow guide plate 32 either.

[0166] Figure 13 It is a schematic structural diagram of the heat management component 30 according to other embodiments of the present application; Figure 14 It is a schematic structural diagram of the body 31 according to other embodiments of the present application; Figure 15 It is a schematic structural diagram of the second flow guide plate 39 according to some embodiments of the present application; Figure 16 It is a schematic structural diagram of the second flow guide plate 39 from another perspective according to some embodiments of the present application.

[0167] Refer to Figure 13 、 Figure 14 、 Figure 15 and Figure 16 In some other embodiments, the heat management component 30 further includes a second flow guide plate 39 and a second medium inlet / outlet 324'. The second flow guide plate 39 is disposed on the first surface 3121. A second groove 322' is provided on the side of the second flow guide plate 39 facing the first surface 3121. The second groove 322' and the first surface 3121 together define a third flow channel 36'. A second through hole 31212 communicating the first flow channel 313 and the third flow channel 36' is formed on the first surface 3121; the second medium inlet / outlet 324' is disposed on the second flow guide plate 39 and communicates with the third flow channel 36'.

[0168] Understandably, in this embodiment, the first medium inlet / outlet 323 and the second medium inlet / outlet 324' are disposed on different flow guide plates. In this way, the positions of the first medium inlet / outlet 323 and the second medium inlet / outlet 324' can be arranged separately according to needs, and the arrangement method is more flexible.

[0169] The positions of the first deflector 32 and the second deflector 39 can be set according to the layout requirements of the first flow channel 313. It can be understood that the first deflector 32 and the second deflector 39 can be arranged close to each other, or the first deflector 32 and the second deflector 39 can be arranged at intervals. Exemplarily, in Figure 14 the first flow channel 313 extends along the second direction Y, the first deflector 32 and the second deflector 39 are arranged at intervals along the second direction Y, the first deflector 32 corresponds to one end of the first flow channel 313, and the second deflector 39 corresponds to the other end of the first flow channel 313.

[0170] It should be noted that in other layout manners of the first flow channel 313, such as Figure 4 shown, the first flow channel 313 is U-shaped. According to the layout requirements, the first deflector 32 and the second deflector 39 can be arranged close to each other, the first deflector 32 and the second deflector 39 are located on the same side of the body 31, and the first deflector 32 and the second deflector 39 can also be connected to each other.

[0171] Specifically, as Figure 13 and Figure 15 shown, the second water nozzle 34' is arranged at the second medium inlet and outlet 324', and the second medium inlet and outlet 324' is for the second connecting portion 342 of the second water nozzle 34' to be inserted.

[0172] Referring to Figure 5 and Figure 14 in some embodiments, the first flow channel 313 has a first end 3131 and a second end 3132, the first through hole 31211 is arranged at the first end 3131, and the second through hole 31212 is arranged at the second end 3132.

[0173] The first end 3131 and the second end 3132 are opposite ends of the first flow channel 313 along the flow direction of the heat exchange medium, one of which is the starting end and the other is the ending end.

[0174] If the first medium inlet and outlet 323 is the medium inlet, then the second medium inlet and outlet 324 is the medium outlet. The heat exchange medium enters the first flow channel 313 from the second flow channel 35 through the first through hole 31211, and then flows to the third flow channel 36 through the second through hole 31212. If the second medium inlet and outlet 324 is the medium inlet, then the first medium inlet and outlet 323 is the medium outlet. The heat exchange medium enters the first flow channel 313 from the third flow channel 36 through the second through hole 31212, and then flows to the second flow channel 35 through the first through hole 31211. Exemplarily, the first medium inlet and outlet 323 is the medium inlet, the first through hole 31211 corresponds to the starting end of the first flow channel 313, the second medium inlet and outlet 324 is the medium outlet, and the second through hole 31212 corresponds to the ending end of the second flow channel 35.

[0175] It is understandable that the first through hole 31211 and the second through hole 31212 respectively correspond to the two ends of the first flow channel 313 in the extending direction.

[0176] In this embodiment, the first flow channel 313 has a first end 3131 and a second end 3132. The first through hole 31211 is arranged at the first end 3131, and the second through hole 31212 is arranged at the second end 3132. In this way, the flow path of the heat exchange medium in the first flow channel 313 is long, and a heat management component 30 with a better heat exchange effect can be obtained.

[0177] Referring to Figure 5 , in some embodiments, a plurality of first flow channels 313 are provided, and the plurality of first flow channels 313 are arranged at intervals along the first direction X.

[0178] Wherein, the first flow channel 313 includes a first section 313a, a second section 313b and a third section 313c. Both the first section 313a and the third section 313c extend along the second direction Y. The first section 313a and the third section 313c are arranged at intervals along the first direction X. One end of the first section 313a is the first end 3131, the other end of the first section 313a and one end of the third section 313c are connected by the second section 313b, the other end of the third section 313c is the second end 3132, and the first direction X and the second direction Y intersect. Optionally, the first direction X and the second direction Y are perpendicular to each other.

[0179] It is understandable that the first end 3131 and the second end 3132 are located on the same side of the first flow channel 313. In this way, it is convenient to arrange the first through hole 31211 and the second through hole 31212 on the same side, and it is convenient to arrange the second flow channel 35 and the third flow channel 36 on the same side of the body 31, so that the first medium inlet and outlet 323 and the second medium inlet and outlet 324 are arranged on the same side of the body 31.

[0180] Exemplarily, the first section 313a, the second section 313b and the third section 313c are connected into a U shape.

[0181] Continuing to refer to Figure 5 , in some embodiments, along the second direction Y, the second end 3132 extends beyond the first end 3131, so that the first end 3131 and the second end 3132 are misaligned in the second direction Y, which is convenient for the second flow channel 35 and the third flow channel 36 to be misaligned and arranged in the second direction Y.

[0182] First referring to Figure 4 , and then referring in combination to Figure 9 and Figure 10, in some embodiments, the body 31 includes a first plate body 311 and a second plate body 312 arranged in a stacked manner. On one side of the first plate body 311 facing the second plate body 312, a third groove 3111 is formed. The second plate body 312 covers the opening of the first groove 321 to form a first flow channel 313. The side of the second plate body 312 facing away from the first plate body 311 is the first surface 3121.

[0183] Understandably, the body 31 is a split structure, which can reduce the manufacturing difficulty of the body 31.

[0184] The first plate body 311 and the second plate body 312 can be connected by bonding, welding or other means.

[0185] In some embodiments, the first plate body 311 is a flat plate, and the second plate body 312 is stamped to form the third groove 3111.

[0186] In some embodiments, antifreeze can also be provided in the first flow channel 313 to maintain the fluidity of the heat exchange medium and reduce the risk of freezing of the heat exchange medium.

[0187] In some embodiments, the thickness of the first deflector 32 is greater than the thickness of the second plate body 312. In this way, the second flow channel 35 can withstand greater pressure brought by the heat exchange medium, improve the structural strength of the thermal management component 30, and reduce the risk of deformation of the thermal management component 30.

[0188] In some embodiments, the thickness of the first deflector 32 is greater than or equal to the thickness of the body 31. In this way, the structural strength of the thermal management component 30 can be further improved, and the risk of deformation of the thermal management component 30 can be reduced.

[0189] Referring to Figure 10 , in some embodiments, the thickness of the first deflector 32 is H1, the thickness of the body 31 is H3, 1 mm ≤ H1 ≤ 5 mm, 1 mm ≤ H3 ≤ 5 mm.

[0190] Exemplarily, the value of H1 can be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc. It should be understood that since it is impossible to list all the values between 1 mm and 5 mm exhaustively, several intermediate values are listed here as examples. It can be understood that any value in between can be used as the thickness of the first deflector 32.

[0191] Exemplarily, the value of H3 can be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc. It should be understood that since it is impossible to list all the values between 1 mm and 5 mm exhaustively, several intermediate values are listed here as examples. It can be understood that any value in between can be used as the thickness of the body 31.

[0192] The embodiment of the present application further provides a battery 100, and the battery 100 includes the thermal management component 30 provided in any of the above embodiments.

[0193] An embodiment of the present application further provides an electric device, which includes the battery 100 provided in the above embodiment, and the battery 100 is used to supply power to the electric device.

[0194] Reference Figures 3 to 12 The embodiment of the present application further provides a thermal management component 30 , which includes a body 31 , a first guide plate 32 , a first medium inlet and outlet 323 , a second medium inlet and outlet 324 , a first water nozzle 33 , and a second water nozzle 34 .

[0195] A plurality of first flow channels 313 for accommodating heat exchange medium are formed inside the main body 31. The main body 31 includes a first plate body 311 and a second plate body 312 which are stacked. A third groove 3111 is formed on the side of the first plate body 311 facing the second plate body 312. The second plate body 312 covers the opening of the first groove 321 to form the first flow channel 313. The side of the second plate body 312 facing away from the first plate body 311 is a first surface 3121.

[0196] A plurality of first flow channels 313 are arranged at intervals along the first direction X. The first flow channels 313 include a first section 313a, a second section 313b and a third section 313c. The first section 313a and the third section 313c both extend along the second direction Y. The first section 313a and the third section 313c are arranged at intervals along the first direction X. One end of the first section 313a is a first end 3131. The other end of the first section 313a and one end of the third section 313c are connected through the second section 313b. The other end of the third section 313c is a second end 3132. The first section 313a, the second section 313b and the third section 313c are connected in a U shape. Along the second direction Y, the second end 3132 exceeds the first end 3131. The first direction X and the second direction Y are perpendicular to each other.

[0197] The first surface 3121 is provided with a plurality of first through holes 31211 and a plurality of second through holes 31212. The first through holes 31211 correspond to the first ends 3131 of the first flow channels 313, and the second through holes 31212 correspond to the second ends 3132 of the first flow channels 313. The first through holes 31211 are in one-to-one correspondence with the first flow channels 313, and the second through holes 31212 are in one-to-one correspondence with the first flow channels 313. The first deflector 32 is disposed on the first surface 3121. On the side of the first deflector 32 facing the first surface 3121, there are a first groove 321 and a second groove 322. The first groove 321 and the first surface 3121 jointly define a second flow channel 35, and the second groove 322 and the first surface 3121 jointly define a third flow channel 36. The first through holes 31211 communicate the first flow channels 313 and the second flow channels 35, and the second through holes 31212 communicate the first flow channels 313 and the third flow channels 36. The first water nozzle 33 has a first connecting portion 332, the second water nozzle 34 has a second connecting portion 342, and the first deflector 32 is provided with a first medium inlet / outlet 323 and a second medium inlet / outlet 324. The first water nozzle 33 has a first connecting portion 332. The first connecting portion 332 is inserted into the first medium inlet / outlet 323. The first water nozzle 33 is formed with a first connecting hole 331, and the first connecting hole 331 communicates with the second flow channel 35. The second water nozzle 34 has a second connecting portion 342. The second connecting portion 342 is inserted into the second medium inlet / outlet 324. The second water nozzle 34 is formed with a second connecting hole 341, and the second connecting hole 341 communicates with the third flow channel 36. Wherein, the widths of the second flow channel 35 and the third flow channel 36 are both greater than the width of the first flow channel 313.

[0198] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0199] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and changes can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A thermal management component, characterized in that, include: A body, wherein a first flow channel for accommodating a heat exchange medium is formed inside the body, and the body has a first surface in a thickness direction thereof; A first guide plate is disposed on the first surface, a first groove is disposed on a side of the first guide plate facing the first surface, the first groove and the first surface together define a second flow channel, and the first surface is provided with a first through hole connecting the first flow channel and the second flow channel; The first medium inlet and outlet are arranged on the first guide plate and communicated with the second flow channel.

2. The thermal management component according to claim 1, wherein A plurality of the first flow channels and the first through holes are provided, and the first through holes are provided corresponding to the first flow channels. Each of the first flow channels is connected to the second flow channel through the corresponding first through hole.

3. The thermal management component according to claim 2, characterized in that, A plurality of the first flow channels are arranged at intervals along a first direction, and a plurality of the first through holes are arranged at intervals along the first direction.

4. The thermal management component according to claim 2 or 3, characterized in that, The first through holes correspond to the first flow channels one by one.

5. The thermal management component according to any one of claims 1-4, characterized in that A first sealing portion is formed between the first guide plate and the body, and the first sealing portion is disposed around the first groove.

6. The thermal management component according to claim 5, characterized in that, The first guide plate and the body are welded to form a first welding portion, and the first welding portion is the first sealing portion.

7. The thermal management component according to any one of claims 1-6, characterized in that, The width of the second flow channel is greater than the width of the first flow channel.

8. The thermal management component according to any one of claims 1-7, characterized in that, A second groove is further provided on a side of the first guide plate facing the first surface, the second groove and the first surface together define a third flow channel, and the first surface is provided with a second through hole connecting the first flow channel and the third flow channel; The thermal management component also includes: The second medium inlet and outlet are arranged on the first guide plate and communicated with the third flow channel.

9. The thermal management component according to any one of claims 1-7, characterized in that, The thermal management component also includes: A second guide plate is disposed on the first surface, a second groove is disposed on a side of the second guide plate facing the first surface, the second groove and the first surface together define a third flow channel, and a second through hole connecting the first flow channel and the third flow channel is formed on the first surface; The second medium inlet and outlet are arranged on the second guide plate and communicated with the third flow channel.

10. The thermal management component according to claim 8 or 9, characterized in that, The first flow channel has a first end and a second end, the first through hole is disposed at the first end, and the second through hole is disposed at the second end.

11. The thermal management component according to claim 10, characterized in that, There are a plurality of first flow channels, and the plurality of first flow channels are spaced apart along a first direction; The first flow channel includes a first section, a second section and a third section, the first section and the third section both extend along the second direction, the first section and the third section are spaced apart along the first direction, one end of the first section is the first end, the other end of the first section and one end of the third section are connected through the second section, the other end of the third section is the second end, and the first direction and the second direction intersect.

12. The thermal management component according to claim 11, wherein, Along the second direction, the second end exceeds the first end.

13. The thermal management component according to any one of claims 1-12, characterized in that, The body includes a first plate body and a second plate body which are stacked, a third groove is formed on a side of the first plate body facing the second plate body, the second plate body covers an opening of the first groove to form the first flow channel, and a side of the second plate body away from the first plate body is the first surface.

14. The thermal management component according to claim 13, wherein The thickness of the first guide plate is greater than the thickness of the second plate body.

15. The thermal management component according to any one of claims 1-14, characterized in that, The thickness of the first deflector is greater than or equal to the thickness of the body.

16. The thermal management component according to any one of claims 1-15, wherein the depth of the first groove is not greater than five times the thickness of the first deflector.

17. A battery, characterized in that, Comprising the thermal management component according to any one of claims 1-16.

18. An electrical device, characterized in that, Comprising the battery according to claim 17, the battery being used to supply power to the electrical equipment.

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