Thermal management component, battery and electric device

Abstract

The utility model provides a heat management component, a battery and a power utilization device, and belongs to the technical field of batteries. The heat management component comprises a body part and a shielding piece. The body part is bent to form a plurality of connecting areas, the plurality of connecting areas are sequentially connected to form an accommodating space for accommodating a battery monomer, a corner area is formed at the connecting position of two adjacent connecting areas, a medium channel passing through the corner area is formed in the body part, and an opening is formed in the position, corresponding to the medium channel, of one side, deviating from the accommodating space, of the corner area; the opening is communicated with the medium channel. The shielding piece is connected to the body part and blocks the opening. According to the heat management component of the structure, when the body part is bent, the phenomenon that huge tension is generated in the corner area of the body part can be relieved through the opening, so that the risk that the corner area of the body part is broken or collapsed is facilitated, the yield of the heat management component is guaranteed, the height of a medium channel passing through the corner area can be guaranteed, and the heat management component is more stable. And the passing ability of the refrigerant is improved.

Description

TECHNICAL FIELD

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

[0002] In recent years, new energy vehicles have made a great leap in development. In the field of electric vehicles, power batteries, as the power source of electric vehicles, play an irreplaceable important role. The battery is composed of a box body and a plurality of battery monomers contained in the box body. Among them, the battery as a core component of new energy vehicles has high requirements in terms of safety and service life. However, the battery monomers in the battery will generate a large amount of heat during continuous charging and discharging, which will cause the internal temperature of the battery to rise sharply, thereby seriously affecting the use performance and service life of the battery, and even causing a great safety hazard in the use of the battery, which is not conducive to the use safety of consumers. CONTENT OF THE UTILITY MODEL

[0003] The embodiments of the present application provide a thermal management component, a battery and an electric device, which can effectively improve the use safety and service life of the battery.

[0004] In a first aspect, the embodiments of the present application provide a thermal management component, comprising a body part and a shielding piece; the body part is bent to form a plurality of connection zones, the plurality of connection zones are connected in sequence to form a containing space for containing battery monomers, the connection position of two adjacent connection zones forms a corner zone, a medium channel passing through the corner zone is formed in the interior of the body part, an opening corresponding to the position of the medium channel on the side of the corner zone away from the containing space is arranged, and the opening is in communication with the medium channel; the shielding piece is connected to the body part and blocks the opening.

[0005] In the technical scheme, the body part of the thermal management component is bent to form multiple connection regions, and a corner region is formed at the connection position of two adjacent connection regions, so that the connection regions and the corner region jointly define an accommodation space for accommodating the battery monomer. Thus, the body part of the thermal management component has multiple connection regions capable of contacting the battery monomer, thereby effectively increasing the heat exchange area between the thermal management component and the battery monomer, improving the heat exchange efficiency of the thermal management component. On the one hand, the battery monomer can effectively dissipate heat to reduce safety problems such as heat spread or thermal runaway of the battery. On the other hand, when multiple battery monomers are arranged in the accommodation space of the thermal management component, the temperature difference between the multiple battery monomers can be reduced to reduce the impact on the service life of the battery monomer, thereby improving the use safety and service life of the battery. In addition, an opening is formed on the side of the corner region away from the accommodation space and corresponding to the position of the medium channel, and the opening is blocked by a separate shielding piece. Thus, when the body part is bent to form the corner region during the production of the thermal management component, the opening can relieve the phenomenon that the corner region of the body part generates a large tension, thereby reducing the risk of rupture or collapse of the corner region of the body part, ensuring the production quality and yield of the thermal management component. The structure of the shielding piece blocking the opening can ensure the height of the medium channel passing through the corner region, thereby improving the passability of the refrigerant in the medium channel and ensuring the heat exchange capacity of the thermal management component.

[0006] In some embodiments, the multiple connection regions include a first connection region, a second connection region, and a third connection region, the first connection region and the third connection region are oppositely arranged, and the second connection region connects the first connection region and the third connection region.

[0007] In the technical scheme, the body part of the thermal management component forms three connection regions, i.e., a first connection region, a second connection region, and a third connection region connected in sequence, and the first connection region and the third connection region are oppositely arranged, so that the body part of the thermal management component forms a structure similar to a "U". The thermal management component with this structure can contact three different surfaces of the battery monomer accommodated in the accommodation space, so that the thermal management component and the battery monomer have a higher heat exchange area, thereby effectively improving the thermal management capability of the battery monomer.

[0008] In some embodiments, the two adjacent connection regions are perpendicular to each other.

[0009] In the technical scheme, the two adjacent connection regions are arranged to be perpendicular to each other, so that the body part and the different surfaces of the battery monomer are mutually fitted. On the one hand, it is convenient to assemble the battery monomer into the accommodation space of the body part. On the other hand, it can effectively increase the contact area between the thermal management component and the battery monomer.

[0010] In some embodiments, the body portion has an outer surface, the opening is disposed on the outer surface, and the shielding member is attached to the outer surface.

[0011] In the above technical solution, the opening is disposed on the outer surface of the body portion, that is, the side of the body portion facing away from the accommodation space is the outer surface of the body portion, so that the opening is formed on the outer surface of the body portion. By attaching the shielding member to the outer surface of the body portion, the heat management component with this structure can improve the plugging effect of the shielding member on the opening, facilitate the connection of the shielding member to the body portion, reduce the processing difficulty, effectively increase the connection area between the shielding member and the body portion, and improve the connection stability and reliability between the shielding member and the body portion.

[0012] In some embodiments, the width of the part of the shielding member beyond the edge of the opening is D1, and 6mm≤D1≤15mm.

[0013] In the above technical solution, by setting the width of the part of the shielding member beyond the edge of the opening to be 6mm to 15mm, that is, the lap size of the shielding member and the outer surface of the body portion is 6mm to 15mm. This structure can alleviate the poor plugging effect of the shielding member on the opening due to the small lap size, reduce the risk of refrigerant leakage, reduce the redundancy of the shielding member due to the large lap size, save the material of the shielding member, and reduce the manufacturing cost of the heat management component.

[0014] In some embodiments, along the thickness direction of the connecting region, the size of the part of the medium channel located in the connecting region is D2; along the thickness direction of the corner region, the part of the medium channel located in the corner region has opposite first and second inner surface walls, the opening penetrates the first inner surface wall, and the distance between the shielding member and the second inner surface wall is D3; and D3≥D2.

[0015] In the above technical solution, by setting the size of the medium channel in the corner region to be greater than the size of the medium channel in the connecting region, the heat management component with this structure can ensure the passability of the refrigerant in the medium channel located in the corner region, reduce the risk of blockage when the refrigerant flows through the medium channel located in the corner region, and ensure the normal use of the heat management component, so that the heat exchange capacity of the multiple connecting regions is balanced.

[0016] In some embodiments, 2mm≤D2≤3mm.

[0017] In the technical solution, the size of the medium channel at the connecting area is set to 2mm to 3mm, which can relieve the poor passing of the refrigerant in the medium channel caused by the too small size, and reduce the too large space size of the body part of the thermal management component caused by the too large size, so as to ensure the energy density of the battery with the thermal management component.

[0018] In some embodiments, 2mm≤D3≤4mm.

[0019] In the technical solution, the size of the medium channel at the corner area is set to 2mm to 4mm, which can relieve the poor passing of the refrigerant in the medium channel caused by the too small size, and reduce the too large manufacturing difficulty of the position of the body part of the thermal management component at the corner area caused by the too large size.

[0020] In a second aspect, the embodiments of the present application further provide a battery, comprising a box, a battery monomer and the thermal management component; the battery monomer is contained in the box; the thermal management component is arranged in the box, the battery monomer is located in the containing space, and the thermal management component is used for managing the temperature of the battery monomer.

[0021] In a third aspect, the embodiments of the present application further provide a power utilization device, comprising the battery. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and 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 on the scope, and other related drawings can also be obtained by those skilled in the art without creative labor.

[0023] Figure 1 The structural schematic diagram of the vehicle provided by some embodiments of the present application is shown in the figure;

[0024] Figure 2 The structural explosion diagram of the battery provided by some embodiments of the present application is shown in the figure;

[0025] Figure 3 The structural schematic diagram of the thermal management component provided by some embodiments of the present application is shown in the figure;

[0026] Figure 4 The structural schematic diagram of the thermal management component provided by some embodiments of the present application is shown in the figure; Figure 3 The partial enlarged view of A of the thermal management component shown in the figure;

[0027] Figure 5 The structural explosion diagram of the thermal management component provided by some embodiments of the present application is shown in the figure;

[0028] Figure 6 Partial sectional view of a heat management component provided for some embodiments of the present application;

[0029] Figure 7 Partial sectional view of a heat management component provided for some embodiments of the present application at a corner region;

[0030] Figure 8 Flowchart of a manufacturing method of a heat management component provided for some embodiments of the present application;

[0031] Figure 9 Structural schematic diagram of a body part of a heat management component provided for some embodiments of the present application;

[0032] Figure 10 Flowchart of step S100 of a manufacturing method of a heat management component provided for some embodiments of the present application;

[0033] Figure 11 Structural schematic diagram of a composite sheet provided for some embodiments of the present application;

[0034] Figure 12 Structural schematic diagram of a composite sheet provided for some embodiments of the present application after step S120;

[0035] Figure 13 Top view of a composite sheet provided for some embodiments of the present application after step S120;

[0036] Figure 14 Flowchart of step S110 of a manufacturing method of a heat management component provided for some embodiments of the present application;

[0037] Figure 15 Structural schematic diagram of a hot-rolled sheet provided for some embodiments of the present application.

[0038] Icon: 1000-vehicle; 100-battery; 10-box body; 11-first box body; 12-second box body; 20-battery cell; 30-heat management component; 31-body part; 311-connection region; 312-accommodation space; 313-corner region; 314-medium passage; 315-opening; 316-protrusion; 317-outer surface; 318-composite sheet; 3181-to-be-bent region; 3182-hot-rolled sheet; 3182a-sheet; 32-shielding piece; 200-controller; 300-motor; X-extension direction of the corner region; Y-thickness direction of the connection region; Z-thickness direction of the corner region. DETAILED DESCRIPTION

[0039] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, not to describe a particular order or primary and secondary relationship.

[0041] In the present application, the phrase "embodiments" means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily all refer to the same embodiments, nor are they necessarily mutually exclusive or alternative embodiments to each other.

[0042] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0044] In the embodiments of the present application, the same reference signs represent the same parts, and for the sake of brevity, detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and width of various components in the embodiments of the present application shown in the drawings, and the overall thickness, length and width of the integrated device are only exemplary and should not constitute any limitation on the present application.

[0045] In this application, "multiple" means two or more (including two).

[0046] In this application, the battery cell may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of this application are not limited to this. The battery cell may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited to this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and pouch battery cells, and the embodiments of this application are not limited to this.

[0047] The battery mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack. A battery generally includes a housing for encapsulating one or more battery cells or multiple battery modules. The housing can prevent liquids or other foreign matter from affecting the charging or discharging of the battery cells.

[0048] In recent years, new energy vehicles have experienced rapid development. In the field of electric vehicles, the power battery, as the power source, plays an irreplaceable and crucial role. A battery consists of a casing and multiple individual battery cells housed within it. As a core component of new energy vehicles, the battery faces high requirements in terms of both safety and cycle life.

[0049] The inventors discovered that in typical power batteries, multiple battery cells are usually arranged in an array within the battery casing to provide sufficient power. However, these cells generate significant heat during continuous charging and discharging, causing the internal temperature of the battery to rise. The stacked structure of multiple cells exacerbates this phenomenon, severely impacting battery performance and lifespan, and even posing significant safety hazards for consumers. Therefore, existing technologies typically incorporate a water-cooling plate inside the battery casing, located on one side of the battery cells. This plate contains channels for the flow of cooling medium to cool the cells. However, this water-cooling plate has a small heat exchange area with the battery cells within the casing, and the heat exchange efficiency is low. This results in ineffective heat dissipation for the cells, easily leading to thermal runaway or other safety issues. Furthermore, the temperature differences between the cells significantly impact their lifespan, ultimately hindering battery safety and overall lifespan.

[0050] Based on the above considerations, in order to solve the problem of low safety and short service life of the existing battery, the inventor designs a heat management component after deep research, which comprises a body part and a shielding piece. The body part is bent to form a plurality of connection zones, and the plurality of connection zones are connected in sequence to form a containing space for accommodating battery monomers. The connection position of the two adjacent connection zones forms a corner zone. The body part is internally formed with a medium channel passing through the corner zone. The side of the corner zone away from the containing space is provided with an opening corresponding to the position of the medium channel. The opening is in communication with the medium channel. The shielding piece is connected to the body part and blocks the opening.

[0051] In the heat management component with the above structure, the body part of the heat management component is bent to form a plurality of connection zones, and the connection position of the two adjacent connection zones forms a corner zone, so that the connection zones and the corner zone jointly define a containing space for accommodating battery monomers. The body part of the heat management component has a plurality of connection zones capable of contacting the battery monomers, thereby effectively increasing the heat exchange area between the heat management component and the battery monomers to improve the heat exchange efficiency of the heat management component. On the one hand, the battery monomers can be effectively cooled to reduce safety problems such as heat spread or thermal runaway of the battery. On the other hand, when a plurality of battery monomers are arranged in the containing space of the heat management component, the temperature difference between the plurality of battery monomers can be reduced to reduce the impact on the service life of the battery monomers, thereby improving the safety and service life of the battery.

[0052] In addition, the opening is provided on the side of the corner zone away from the containing space and corresponds to the position of the medium channel, and the opening is blocked by a separate shielding piece. When the body part is bent to form the corner zone during the production of the heat management component, the opening can relieve the phenomenon that the corner zone of the body part produces a large tension, thereby reducing the risk of rupture or collapse of the corner zone of the body part, ensuring the production quality and yield of the heat management component. The structure of blocking the opening by the shielding piece can ensure the height of the medium channel passing through the corner zone, thereby improving the passability of the refrigerant in the medium channel and ensuring the heat exchange capacity of the heat management component.

[0053] The heat management component disclosed in the embodiments of the present application can be used in an electric device such as a vehicle, a ship or an aircraft, but is not limited thereto. The power supply system of the electric device can be composed of the heat management component and a battery disclosed in the present application. In this way, the heat exchange capacity of the heat management component can be improved to improve the safety and service life of the battery.

[0054] The embodiments of the present application provide a power consumption device using a battery as a power supply. The power consumption device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, an electric car, an electric vehicle, a ship, a spacecraft and the like. The electric toy can include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy and an electric plane toy, and the spacecraft can include an airplane, a rocket, a space shuttle and a spacecraft and the like.

[0055] The following embodiments are described by taking a power consumption device of an embodiment of the present application as a vehicle for example for convenience of description.

[0056] Please refer to Figure 1 , Figure 1 A structural schematic diagram of a vehicle 1000 provided by some embodiments of the present application is shown. The vehicle 1000 can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile. The vehicle 1000 is internally provided with a battery 100, which can be arranged at the bottom, the head or the 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 an operating power supply of the vehicle 1000. The vehicle 1000 can further include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to supply power to the motor 300, for example, to meet the working power demand of the vehicle 1000 during starting, navigation and driving.

[0057] In some embodiments of the present application, the battery 100 can not only be used as an operating power supply of the vehicle 1000, but also be used as a driving power supply of the vehicle 1000, to replace or partially replace fuel or natural gas to provide driving power for the vehicle 1000.

[0058] Please refer to Figure 2 , Figure 2An exploded view of a battery 100 is provided for some embodiments of the present application. The battery 100 includes a box 10 and a plurality of battery cells 20, which are accommodated in the box 10. The box 10 is configured to provide an assembly space for the battery cells 20, and the box 10 can have various structures. In some embodiments, the box 10 can include a first box body 11 and a second box body 12, the first box body 11 and the second box body 12 are overlapped with each other, and the first box body 11 and the second box body 12 together define an assembly space for accommodating the battery cells 20. The second box body 12 can be a hollow structure with one end open, and the first box body 11 can be a plate structure, which is overlapped with the open end of the second box body 12 to define the assembly space together with the second box body 12. Alternatively, the first box body 11 and the second box body 12 can both be hollow structures with one side open, and the open side of the first box body 11 is overlapped with the open side of the second box body 12. Of course, the box 10 formed by the first box body 11 and the second box body 12 can have various shapes, such as a cylinder, a cuboid, etc.

[0059] In the battery 100, the plurality of battery cells 20 can be connected in series, in parallel, or in a mixed manner. The mixed manner means that the plurality of battery cells 20 are connected in series and in parallel. The plurality of battery cells 20 can be directly connected in series, in parallel, or in a mixed manner, and then the plurality of battery cells 20 are accommodated in the box 10. Alternatively, the plurality of battery cells 20 can be first connected in series, in parallel, or in a mixed manner to form a battery module, and then a plurality of battery modules are connected in series, in parallel, or in a mixed manner to form a whole, which is accommodated in the box 10. The battery 100 can further include other structures, for example, the battery 100 can further include a current collecting component for electrically connecting the plurality of battery cells 20.

[0060] In some embodiments, as shown in Figure 2 , the battery 100 can further include a thermal management component 30, which is arranged in the box 10. The thermal management component 30 is configured to manage the temperature of the battery cells 20, so as to cool the battery 100.

[0061] Each battery cell 20 can be a secondary battery or a primary battery, and can be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 can have a cylindrical shape, a flat shape, a cuboid shape, or other shapes. For example, in Figure 2 , the battery cell 20 has a cuboid shape.

[0062] According to some embodiments of the present application, please refer to Figures 3-6 , Figure 3 An exploded view of a battery 100 is provided for some embodiments of the present application. The battery 100 includes a box 10 and a plurality of battery cells 20, which are accommodated in the box 10. The box 10 is configured to provide an assembly space for the battery cells 20, and the box 10 can have various structures. In some embodiments, the box 10 can include a first box body 11 and a second box body 12, the first box body 11 and the second box body 12 are overlapped with each other, and the first box body 11 and the second box body 12 together define an assembly space for accommodating the battery cells 20. The second box body 12 can be a hollow structure with one end open, and the first box body 11 can be a plate structure, which is overlapped with the open end of the second box body 12 to define the assembly space together with the second box body 12. Alternatively, the first box body 11 and the second box body 12 can both be hollow structures with one side open, and the open side of the first box body 11 is overlapped with the open side of the second box body 12. Of course, the box 10 formed by the first box body 11 and the second box body 12 can have various shapes, such as a cylinder, a cuboid, etc. Figure 4 is provided for some embodiments of the present application.Figure 3 a partial enlarged view of the thermal management component 30 shown at A, Figure 5 a structural exploded view of the thermal management component 30 provided for some embodiments of the present application, Figure 6 a partial sectional view of the thermal management component 30 provided for some embodiments of the present application. The present application provides a thermal management component 30, which comprises a body part 31 and a shielding part 32. The body part 31 is bent to form a plurality of connection regions 311, which are sequentially connected to form a containing space 312 for accommodating a battery monomer 20. The connection positions of two adjacent connection regions 311 form a corner region 313. The interior of the body part 31 is formed with a medium passage 314 passing through the corner region 313. The side of the corner region 313 away from the containing space 312 is provided with an opening 315 corresponding to the position of the medium passage 314. The opening 315 is in communication with the medium passage 314. The shielding part 32 is connected to the body part 31 and blocks the opening 315.

[0063] Among them, the body part 31 is a part of the thermal management component 30 for contacting the battery monomer 20 to exchange heat with the battery monomer 20 through the body part 31, thereby realizing the function of the thermal management component 30 to manage the temperature of the battery monomer 20.

[0064] The body part 31 is bent to form a plurality of connection regions 311, which are sequentially connected to form a containing space 312 for accommodating a battery monomer 20. That is, the body part 31 of the thermal management component 30 is a plate structure formed by a bending process. Each region after bending is a connection region 311. The connection region 311 is a region for heat exchange after contacting the battery monomer 20. The space surrounded by the plurality of connection regions 311 is the containing space 312 for accommodating or placing the battery monomer 20.

[0065] The material and structure of the body part 31 can be various, such as the material of the body part 31 can be aluminum or aluminum alloy and the like which is easy to bend and plastic.

[0066] For example, in the embodiment shown in the figure, Figure 3 In the embodiment shown in the figure, the body part 31 is bent to form a structure similar to a "U" shape, that is, the body part 31 is bent twice to form three connection regions 311. The space formed by the three connection regions 311 of the body part 31 is the containing space 312 for accommodating the battery monomer 20. Of course, in other embodiments, the body part 31 can be bent only once to form two connection regions 311, such as a structure similar to an "L" shape or a "V" shape, or can be bent three times, four times or five times, etc. to form a plurality of connection regions 311. It should be noted that the bending angle of the body part 31 can be various, in the embodiment shown in the figure, Figure 3In some embodiments, the bending angle of the body part 31 is 90 degrees, i.e. the two adjacent connection regions 311 are perpendicular to each other. Of course, in some embodiments, the bending angle of the body part 31 is 30 degrees, 40 degrees, 45 degrees, 60 degrees or 120 degrees, i.e. the two adjacent connection regions 311 are arranged at an acute angle or an obtuse angle.

[0067] The connection position of the two adjacent connection regions 311 forms a corner region 313, i.e. the corner region 313 is the region of the body part 31 that is bent, and the region that is not bent is the connection region 311, so that the two adjacent connection regions 311 are connected through a bent region.

[0068] The interior of the body part 31 is formed with a medium passage 314 passing through the corner region 313, i.e. the interior of the body part 31 is provided with the medium passage 314, and the medium passage 314 passes through the corner region 313 from one connection region 311 into the adjacent other connection region 311. Figure 3 And Figure 4 In some embodiments, the medium passage 314 of the body part 31 is formed by a blow molding process, so that the position of the body part 31 where the protrusion 316 is formed is the position where the medium passage 314 is formed in the interior of the body part 31. For example, there are two medium passages 314 passing through the corner region 313 of the body part 31, so that the medium passages 314 in the interior of the whole body part 31 form a loop.

[0069] In some embodiments, the medium flow channel is used to accommodate a refrigerant, i.e. the refrigerant can exchange heat with the battery monomer 20 through the thermal management component 30 when flowing through the medium flow channel, so as to realize the function of the thermal management component 30 managing the temperature of the battery monomer 20. For example, the refrigerant can be a gas, such as air or hydrogen, or a liquid, such as water, a salt water solution or liquid nitrogen.

[0070] The side of the corner region 313 away from the accommodation space 312 is provided with an opening 315 corresponding to the position of the medium passage 314, i.e. the side of the corner region 313 is provided with the opening 315, the opening 315 is located on the side of the corner region 313 away from the accommodation space 312 and is formed in the position of the interior of the corner region 313 having the medium passage 314, so that the opening 315 can communicate with the medium passage 314 located at the corner region 313. For example, as shown in Figure 5 As shown, the positions of the two medium passages 314 passing through the corner region 313 are both provided with the opening 315, so as to facilitate the bending of the body part 31 to form a bent structure.

[0071] The shielding piece 32 is connected to the body part 31 and plays a role of plugging the opening 315. Optionally, the connection position and connection mode of the shielding piece 32 and the body part 31 can be various, for example, as shown in Figure 4 And Figure 6The shielding member 32 can be connected to the body part 31 on the side away from the accommodation space 312. Of course, in other embodiments, the shielding member 32 can also be arranged in the opening 315 and connected to the inner wall of the opening 315 to block the opening 315. Correspondingly, the shielding member 32 can be connected to the body part 31 by welding or adhesion.

[0072] Since the opening 315 is arranged at the corner area 313 of the body part 31, in order to improve the blocking effect of the shielding member 32 on the opening 315, the shielding member 32 is arranged to extend along the bending direction of the corner area 313. For example, in the embodiment shown in Figure 6 , the shielding member 32 is in an L-shaped structure.

[0073] By bending the body part 31 of the thermal management component 30 to form a plurality of connection areas 311 and forming a corner area 313 at the connection position of two adjacent connection areas 311, the connection area 311 and the corner area 313 jointly define an accommodation space 312 for accommodating the battery monomer 20, so that the body part 31 of the thermal management component 30 has a plurality of connection areas 311 capable of contacting the battery monomer 20, thereby effectively increasing the heat exchange area between the thermal management component 30 and the battery monomer 20 to improve the heat exchange efficiency of the thermal management component 30. On the one hand, the battery monomer 20 can effectively dissipate heat to reduce the risk of thermal spread or thermal runaway of the battery 100. On the other hand, when a plurality of battery monomers 20 are arranged in the accommodation space 312 of the thermal management component 30, the temperature difference between the plurality of battery monomers 20 can be reduced to reduce the impact on the service life of the battery monomer 20, thereby improving the use safety and service life of the battery 100. In addition, the opening 315 is arranged at the side of the corner area 313 away from the accommodation space 312 and corresponding to the position of the medium passage 314, and the opening 315 is blocked by a separate shielding member 32. When the body part 31 is bent to form the corner area 313 during the production of the thermal management component 30, the opening 315 can relieve the phenomenon that the corner area 313 of the body part 31 produces a large tension, thereby reducing the risk of rupture or collapse of the corner area 313 of the body part 31 to ensure the production quality and yield of the thermal management component 30. The structure of the shielding member 32 blocking the opening 315 can ensure the height of the medium passage 314 passing through the corner area 313, thereby improving the passability of the refrigerant in the medium passage 314 to ensure the heat exchange capacity of the thermal management component 30.

[0074] According to some embodiments of the present application, as shown in Figure 6 , the plurality of connection areas 311 include a first connection area 311, a second connection area 311, and a third connection area 311. The first connection area 311 and the third connection area 311 are arranged opposite to each other, and the second connection area 311 connects the first connection area 311 and the third connection area 311.

[0075] In the above description, the body part 31 of the thermal management component 30 is formed with three connection regions 311, and the three connection regions 311 are sequentially connected to form a structure similar to a "U" shape. Among the three connection regions 311, the two oppositely arranged connection regions 311 are the first connection region 311 and the third connection region 311, that is, the first connection region 311, the second connection region 311, and the third connection region 311 are sequentially connected, and the first connection region 311 and the third connection region 311 are oppositely arranged, so that the body part 31 of the thermal management component 30 forms a structure similar to a "U" shape, that is, the body part 31 of the thermal management component 30 is bent twice to form a structure similar to a "U" shape, thereby having three connection regions 311 and two corner regions 313.

[0076] The thermal management component 30 with this structure can contact three different surfaces of the battery monomer 20 accommodated in the accommodation space 312, so that the thermal management component 30 and the battery monomer 20 have a higher heat exchange area, thereby effectively improving the thermal management capability of the battery monomer 20.

[0077] According to some embodiments of the present application, as shown in Figure 5 and Figure 6 The two adjacent connection regions 311 are perpendicular to each other.

[0078] Among them, the two adjacent connection regions 311 are perpendicular to each other, that is, the bending angle of the body part 31 is 90 degrees, so that the included angle formed between the two adjacent connection regions 311 is 90 degrees. Of course, in some embodiments, the bending angle of the body part 31 is 30 degrees, 40 degrees, 45 degrees, 60 degrees, or 120 degrees, etc., that is, the two adjacent connection regions 311 are arranged at an acute angle or an obtuse angle.

[0079] By arranging the two adjacent connection regions 311 to be perpendicular to each other, the body part 31 and the different surfaces of the battery monomer 20 are matched with each other, on the one hand, it is convenient to assemble the battery monomer 20 into the accommodation space 312 of the body part 31, on the other hand, it can effectively increase the contact area between the thermal management component 30 and the battery monomer 20.

[0080] According to some embodiments of the present application, as shown in Figure 4 and Figure 6 The body part 31 has an outer surface 317, the opening 315 is arranged on the outer surface 317, and the shielding piece 32 is attached to the outer surface 317.

[0081] Among them, the body part 31 has an outer surface 317, and the opening 315 is arranged on the outer surface 317, that is, the surface of the side of the body part 31 where the opening 315 is arranged is the outer surface 317, that is, the surface of the side of the body part 31 away from the accommodation space 312 is the outer surface 317.

[0082] The shielding member 32 is attached to the outer surface 317, that is, the shielding member 32 covers and connects to the part of the outer surface 317 of the body part 31 to block the opening 315.

[0083] The opening 315 is arranged on the outer surface 317 of the body part 31, that is, the side of the body part 31 away from the accommodation space 312 is the outer surface 317 of the body part 31, so that the opening 315 is arranged on the outer surface 317 of the body part 31. By attaching the shielding member 32 to the outer surface 317 of the body part 31, the heat management component 30 of this structure is beneficial to improve the blocking effect of the shielding member 32 on the opening 315, and on the other hand, it is convenient to connect the shielding member 32 to the body part 31, so as to reduce the processing difficulty, and can effectively increase the connection area between the shielding member 32 and the body part 31, thereby improving the connection stability and firmness between the shielding member 32 and the body part 31.

[0084] According to some embodiments of the present application, referring to Figure 6 , and further referring to Figure 7 , Figure 7 The partial cross-sectional view of the heat management component 30 provided by some embodiments of the present application at the corner area 313. The width of the part of the shielding member 32 beyond the edge of the opening 315 is D1, which satisfies 6mm≤D1≤15mm.

[0085] The width of the part of the shielding member 32 beyond the edge of the opening 315 is D1, that is, after the shielding member 32 is attached to the outer surface 317 of the body part 31 and covers the entire opening 315, the lap size of the shielding member 32 and the outer surface 317 of the body part 31 is D1, and the range of D1 is 6mm to 15mm, that is, the lap size of the edges of the shielding member 32 and the outer surface 317 of the body part 31 is all in the range of 6mm to 15mm. For example, the width D1 of the part of the shielding member 32 beyond the edge of the opening 315 can be 6mm, 6.5mm, 7mm, 8mm, 10mm, 12mm or 15mm, etc. For example, in Figure 6 , along the bending direction of the corner area 313, the width of the part of the shielding member 32 beyond the edge of the opening 315 is in the range of 6mm to 15mm, that is, along the bending direction of the corner area 313, the lap size of the two ends of the shielding member 32 and the outer surface 317 of the body part 31 is all in the range of 6mm to 15mm. Similarly, in Figure 7 , it can be seen that along the extension direction X of the corner area, the width of the part of the shielding member 32 beyond the edge of the opening 315 is in the range of 6mm to 15mm, that is, along the extension direction X of the corner area, the lap size of the two ends of the shielding member 32 and the outer surface 317 of the body part 31 is all in the range of 6mm to 15mm.

[0086] By setting the width of the portion of the shielding piece 32 beyond the edge of the opening 315 to be 6mm to 15mm, with this structure, on the one hand, the phenomenon of poor plugging effect of the shielding piece 32 on the opening 315 due to too small lap size can be alleviated, so as to reduce the risk of refrigerant leakage, on the other hand, the phenomenon of redundancy of the shielding piece 32 due to too large lap size can be reduced, thereby being conducive to saving the material of the shielding piece 32, so as to reduce the manufacturing cost of the thermal management component 30.

[0087] According to some embodiments of the present application, referring to Figure 6 As shown, along the thickness direction Y of the connecting area, the size of the portion of the medium channel 314 located in the connecting area 311 is D2. Along the thickness direction Z of the corner area, the portion of the medium channel 314 located in the corner area 313 has opposite first and second inner surface walls, the opening 315 penetrates the first inner surface wall, and the shielding piece 32 is spaced apart from the second inner surface wall by a distance D3. It is satisfied that D3≥D2.

[0088] Wherein, along the thickness direction Y of the connecting area, the size of the portion of the medium channel 314 located in the connecting area 311 is D2, that is, in the thickness direction Y of the connecting area, the height size of the medium channel 314 located in the connecting area 311 is D2.

[0089] Along the thickness direction Z of the corner area, the portion of the medium channel 314 located in the corner area 313 has opposite first and second inner surface walls, the opening 315 penetrates the first inner surface wall, and the shielding piece 32 is spaced apart from the second inner surface wall by a distance D3, that is, in the thickness direction Z of the corner area, the medium channel 314 located in the corner area 313 has two inner surface walls oppositely arranged, and the distance between the inner surface wall far away from the shielding piece 32 and the shielding piece 32 is D3, that is, in the bending radius direction of the corner area 313, the height of the cavity jointly defined by the shielding piece 32 and the medium channel 314 located in the corner area 313 is D3.

[0090] By setting the size of the medium channel 314 in the corner area 313 to be greater than the size of the medium channel 314 in the connecting area 311, the thermal management component 30 with this structure can ensure the passability of the refrigerant in the medium channel 314 located in the corner area 313, so as to reduce the risk of blockage when the refrigerant flows through the medium channel 314 located in the corner area 313, thereby being able to ensure the normal use of the thermal management component 30, so as to balance the heat exchange capacity of the plurality of connecting areas 311.

[0091] In some embodiments, as Figure 6As shown, 2mm≤D2≤3mm. Exemplarily, D2 can be 2mm, 2.1mm, 2.2mm, 2.5mm, 2.8mm or 3mm, etc. By setting the size of the medium channel 314 at the connecting area 311 to be 2mm to 3mm, on the one hand, the problem of poor passing of the refrigerant in the medium channel 314 due to too small size can be alleviated, and on the other hand, the phenomenon of too large space size occupied by the body part 31 of the thermal management component 30 due to too large size can be reduced, so as to ensure the energy density of the battery 100 with such thermal management component 30.

[0092] In some embodiments, as shown in Figure 6 As shown, 2mm≤D3≤4mm. Exemplarily, D3 can be 2mm, 2.1mm, 2.2mm, 2.5mm, 2.8mm, 3mm or 4mm, etc. By setting the size of the medium channel 314 at the corner area 313 to be 2mm to 4mm, on the one hand, the problem of poor passing of the refrigerant in the medium channel 314 due to too small size can be alleviated, and on the other hand, the phenomenon of too large manufacturing difficulty of the position of the body part 31 of the thermal management component 30 at the corner area 313 due to too large size can be reduced.

[0093] According to some embodiments of the present application, as shown in Figure 2 and Figure 3 According to some embodiments of the present application, the embodiments of the present application also provide a battery 100, which comprises a box 10, a battery cell 20 and the thermal management component 30 of any of the above solutions. The battery cell 20 is accommodated in the box 10, the thermal management component 30 is arranged in the box 10, and the battery cell 20 is located in the accommodation space 312 of the body part 31, and the thermal management component 30 is used for managing the temperature of the battery cell 20.

[0094] According to some embodiments of the present application, the embodiments of the present application also provide a power consuming device, which comprises the battery 100 of any of the above solutions, and the battery 100 is used for providing electric energy for the power consuming device.

[0095] The power consuming device can be the device or system of any of the above applications of the battery 100.

[0096] According to some embodiments of the present application, as shown in Figures 3 to 7As shown, the present application provides a thermal management component 30, the thermal management component 30 comprises a body part 31 and a shielding part 32. The body part 31 is bent to form three connecting areas 311, the three connecting areas 311 are sequentially connected to form a containing space 312 for containing a battery monomer 20, the connecting position of the two adjacent connecting areas 311 forms a corner area 313, and the two adjacent connecting areas 311 are perpendicular to each other. The inside of the body part 31 is formed with a medium passage 314 passing through the corner area 313, and the side of the corner area 313 away from the containing space 312 is provided with an opening 315 corresponding to the position of the medium passage 314, and the opening 315 is in communication with the medium passage 314. The shielding part 32 is connected to the body part 31, the body part 31 has an outer surface 317, the opening 315 is arranged on the outer surface 317, and the shielding part 32 is attached to the outer surface 317 and blocks the opening 315. Among them, the width of the part of the shielding part 32 beyond the edge of the opening 315 is D1, and satisfies 6mm≤D1≤15mm.

[0097] According to some embodiments of the present application, the present application also provides a manufacturing method of a thermal management component 30, referring to Figure 5 , and further referring to Figure 8 , Figure 8 The flow chart of the manufacturing method of the thermal management component 30 provided by some embodiments of the present application, the manufacturing method comprises:

[0098] S100: providing a body part 31, the body part 31 is bent to form a plurality of connecting areas 311, the plurality of connecting areas 311 are sequentially connected to form a containing space 312 for containing a battery monomer 20, the connecting position of the two adjacent connecting areas 311 forms a corner area 313, the inside of the body part 31 is formed with a medium passage 314 passing through the corner area 313, and the side of the corner area 313 away from the containing space 312 is provided with an opening 315 corresponding to the position of the medium passage 314, and the opening 315 is in communication with the medium passage 314 (refer to Figure 9 As shown, Figure 9 The structural diagram of the body part 31 of the thermal management component 30 provided by some embodiments of the present application);

[0099] S200: providing a shielding part 32;

[0100] S300: connecting the shielding part 32 to the body part 31, so that the shielding part 32 blocks the opening 315.

[0101] Among them, the shielding part 32 plays a role in blocking the opening 315, so as to reduce the risk of leakage of the refrigerant in the medium passage 314, and the connection mode of the shielding part 32 and the body part 31 can be various, such as welding or bonding.

[0102] In the manufacturing method, the body part 31 having the plurality of connection regions 311 is first processed by bending, and the opening 315 communicating with the medium channel 314 is formed on one side of the corner region 313 formed at the connection position of the two adjacent connection regions 311, and then the opening 315 is blocked by the shielding part 32 to form the heat management part 30 for adjusting the temperature of the battery monomer 20. The heat management part 30 manufactured by the manufacturing method can ensure the height of the medium channel 314 passing through the corner region 313, and is beneficial to improve the passing property of the refrigerant in the medium channel 314, so as to ensure the heat exchange capacity of the heat management part 30.

[0103] It should be noted that the related structure of the heat management part 30 manufactured by the manufacturing method provided by each of the above embodiments can refer to the heat management part 30 provided by each of the above embodiments, which will not be described here.

[0104] According to some embodiments of the present application, referring to Figure 8 and Figure 9 , and further referring to Figure 10 , Figure 10 the flowchart of step S100 of the manufacturing method of the heat management part 30 provided by some embodiments of the present application. Step S100: providing a body part 31 including:

[0105] S110: providing a composite plate 318, and the inside of the composite plate 318 is formed with a medium channel 314 (referring to Figure 11 illustrated, Figure 11 the structural schematic diagram of the composite plate 318 provided by some embodiments of the present application);

[0106] S120: providing an opening 315 communicating with the medium channel 314 on one side of the composite plate 318 (referring to Figure 12 and Figure 13 , Figure 12 the structural schematic diagram of the composite plate 318 after step S120 provided by some embodiments of the present application, Figure 13 the top view of the composite plate 318 after step S120 provided by some embodiments of the present application);

[0107] S130: bending the composite plate 318 to form a body part 31 (referring to Figure 9 illustrated).

[0108] In Figure 11In the above, the composite sheet 318 is internally formed with a medium passage 314 for the refrigerant to flow (the position of the protrusion 316 on the composite sheet 318 is the position of the medium passage 314). For ease of description, the composite sheet 318 is divided into multiple regions, the composite sheet 318 has a to-be-bent region 3181 for bending, the region of the composite sheet 318 that does not need to be bent is the connecting region 311 of the body part 31, each two adjacent connecting regions 311 are connected by a to-be-bent region 3181, and the medium passage 314 formed in the interior of the composite sheet 318 passes from one connecting region 311 through the to-be-bent region 3181 and enters the other adjacent connecting region 311. When the composite sheet 318 passes through step S130, the to-be-bent region 3181 is bent to form the corner region 313 of the body part 31.

[0109] In the above, the composite sheet 318 is internally formed with a medium passage 314, and the manufacturing method of the composite sheet 318 can be various, for example, the composite sheet 318 internally formed with the medium passage 314 can be formed by stamping or casting process, or the medium passage 314 can be formed in the interior of the composite sheet 318 by a blowing process.

[0110] In the above, Figure 12 and Figure 13 In the above, when the composite sheet 318 passes through step S120, one side of the to-be-bent region 3181 of the composite sheet 318 is provided with an opening 315, and the opening 315 is in communication with the part of the medium passage 314 in the to-be-bent region 3181, so as to facilitate subsequent bending and processing of the composite sheet 318 to form the body part 31. In the above, the opening 315 can be formed on the to-be-bent region 3181 of the composite sheet 318 in various ways, for example, the opening 315 can be formed on the to-be-bent region 3181 of the composite sheet 318 by laser cutting or mechanical cutter cutting.

[0111] In the above manufacturing method, the opening 315 is first formed on one side of the composite sheet 318 at the position provided with the medium passage 314, and then the composite sheet 318 is bent away from the side of the opening 315 to form a structure, so as to bend the composite sheet 318 to form multiple connecting regions 311 and corner regions 313, and the opening 315 is located on the side of the corner region 313 away from the accommodation space 312, thereby forming the body part 31 of the thermal management component 30. The body part 31 manufactured by the manufacturing method can effectively relieve the phenomenon of great tension on the side of the corner region 313 away from the accommodation space 312 in the bending process, so as to reduce the risk of rupture or collapse of the corner region 313, on the one hand, to ensure the passability of the medium passage 314 in the corner region 313, and on the other hand, to ensure the production quality and yield of the thermal management component 30.

[0112] According to some embodiments of the present application, with reference toFigure 10 and please further refer to Figure 14 , Figure 14 The flowchart of step S110 of the manufacturing method of the heat management component 30 provided in some embodiments of the present application. Step S110: providing a composite sheet 318 includes:

[0113] S111: providing two sheets 3182a;

[0114] S112: stacking the two sheets 3182a and setting a rolling inhibitor between the two sheets 3182a;

[0115] S113: hot rolling the two sheets 3182a to form a hot-rolled sheet 3182 (refer to Figure 15 shown, Figure 15 The structural schematic diagram of the hot-rolled sheet 3182 provided in some embodiments of the present application);

[0116] S114: inflating the hot-rolled sheet 3182 so that the hot-rolled sheet 3182 forms a medium channel 314 at the position where the rolling inhibitor is set to form a composite sheet 318.

[0117] Exemplarily, the material of the two sheets 3182a provided in step S111 can be a material with good bending plasticity, such as aluminum or aluminum alloy, etc.

[0118] In step S112, the rolling inhibitor needs to be coated between the two sheets 3182a before hot rolling the two sheets 3182a, so as to facilitate the subsequent inflation of the two sheets 3182a after hot rolling to form the medium channel 314. Exemplarily, the material of the rolling inhibitor can be various, such as graphite or boron nitride emulsion, etc. Similarly, the shape of the coating area of the rolling inhibitor can also be various, and in the actual manufacturing process, the rolling inhibitor can be coated into different area shapes between the two sheets 3182a according to the actual needs of the medium channel 314, which is not limited in the embodiments of the present application.

[0119] In step S113, the two sheets 3182a are hot rolled to form a hot-rolled sheet 3182. Since part of the area between the two sheets 3182a is coated with the rolling inhibitor, the area between the two sheets 3182a coated with the rolling inhibitor will not be hot-rolled into one body during hot rolling, while the area between the two sheets 3182a without the rolling inhibitor will be hot-rolled into one body, thereby facilitating the subsequent inflation of the hot-rolled sheet 3182 to form the medium channel 314.

[0120] In step S114, during the inflation process of the hot-rolled plate 3182, the two plate 3182a coated with the rolling inhibitor will be deformed and arched to form the protrusion 316 on the composite plate 318, so that the inner part of the hot-rolled plate 3182 corresponding to the position of the protrusion 316 forms the medium channel 314 to form the composite plate 318 (as shown in FIG. 3). Figure 11 The specific implementation of the inflation process can refer to the related art, which will not be described here.

[0121] In the manufacturing method described above, the composite plate 318 is formed by hot-rolling two plates 3182a and then inflating, so that the inner part of the composite plate 318 forms the medium channel 314 for the flow of the refrigerant. The composite plate 318 manufactured by this manufacturing method has lower difficulty and higher production efficiency, which is conducive to the batch production of the thermal management component 30.

[0122] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0123] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. 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 by, The heat management component comprises: a body portion, which is bent to form a plurality of connection regions, the plurality of connection regions are sequentially connected to form an accommodation space for accommodating a battery cell, a connection position of two adjacent connection regions forms a corner region, an inside of the body portion is formed with a medium passage passing through the corner region, an opening is arranged on a side of the corner region away from the accommodation space and corresponding to a position of the medium passage, and the opening is in communication with the medium passage; and a shielding member, which is connected to the body portion and blocks the opening. The plurality of connection regions comprise a first connection region, a second connection region and a third connection region, the first connection region and the third connection region are oppositely arranged, and the second connection region connects the first connection region and the third connection region.

2. The thermal management component of claim 1, wherein, The two adjacent connection regions are perpendicular to each other.

3. The thermal management component of claim 1, wherein, The body portion has an outer surface, the opening is arranged on the outer surface, and the shielding member is attached to the outer surface.

4. The thermal management component of claim 1, wherein, A width of a portion of the shielding member beyond an edge of the opening is D1, and 6mm≤D1≤15mm is satisfied.

5. The thermal management component of claim 4, wherein, In a thickness direction of the connection region, a size of a portion of the medium passage located in the connection region is D2.

6. The thermal management component of any of claims 1-5, wherein, In a thickness direction of the corner region, a portion of the medium passage located in the corner region has opposite first and second inner surface walls, the opening penetrates the first inner surface wall, and a distance between the shielding member and the second inner surface wall is D3. D3≥D2 is satisfied. 2mm≤D2≤3mm.

7. The thermal management component of claim 6, wherein, 2mm≤D3≤4mm.

8. The thermal management component of claim 6, wherein, The heat management component comprises:

9. A battery, characterized by a box body; a battery cell accommodated in the box body; and the heat management component according to any one of claims 1-8, which is arranged in the box body, the battery cell is located in the accommodation space, and the heat management component is used for managing a temperature of the battery cell. The battery according to claim 9 is used for providing electric energy. ​ 10. An electrical device, characterized by ​

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