Heat exchange component, battery box body, battery and power utilization device

Abstract

The utility model provides a heat exchange component, a battery box body, a battery and an electric device. The heat exchange component comprises a sectional material structure and a heat exchange structure, the sectional material structure comprises a cavity with at least one open end, the heat exchange structure comprises a first heat exchange part and a plurality of second heat exchange parts, the second heat exchange parts are detachably contained in the cavity, and the sectional material structure plays a role in supporting the first heat exchange part; the second heat exchange parts are used for containing heat exchange media, the first heat exchange parts communicate with the second heat exchange parts and the external environment, the heat exchange media flow in the first heat exchange parts and the second heat exchange parts, so that the heat exchange structure can achieve the effect of adjusting the battery temperature through the profile structure, and the heat exchange structure is detachably arranged in a cavity of the profile structure, so that the battery temperature is adjusted. Therefore, when the heat exchange structure or the profile structure is damaged, only the damaged part needs to be replaced, and the other part does not need to be damaged, so that the maintenance cost of the heat exchange part is reduced, and the overall cost of the battery is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a heat exchange component, a battery box, a battery and an electrical device. Background Art

[0002] As the power source of pure electric vehicles, power batteries are a key link in improving the performance of the entire vehicle. The temperature characteristics of the battery directly affect the performance, life and durability of the electric vehicle. Therefore, it is crucial for electric vehicles to set up a cooling system in the battery to control the temperature of the battery.

[0003] In the prior art, the cooling system can be a brazed water-cooled plate in contact with the battery cell, with a heat exchange channel formed inside the water-cooled plate, in which the heat exchange medium flows to adjust the temperature of the battery cell. However, during the production and use of the water-cooled plate, if the water-cooled plate fails, the maintenance process is complicated and the maintenance cost is high, which leads to an increase in the overall cost of the battery, and improvement is urgently needed. Utility Model Content

[0004] In view of the above problems, the present application provides a heat exchange component, a battery box, a battery and an electrical device, which can simplify the water cooling plate maintenance process, reduce the water cooling plate maintenance cost, and reduce the overall battery cost.

[0005] In a first aspect, the present application provides a heat exchange component, comprising: a profile structure for contacting a battery cell, the profile structure comprising a chamber with at least one end open in a first direction, and a plurality of profile structures arranged at intervals along a second direction; a heat exchange structure, comprising a first heat exchange part and a plurality of second heat exchange parts, the second heat exchange parts being detachably accommodated in the chamber, the second heat exchange parts being used to accommodate a heat exchange medium, the first heat exchange part extending along the second direction, the first heat exchange part connecting each second heat exchange part and the external environment, the second heat exchange part being an injection molding structure, and the first direction and the second direction intersecting.

[0006] In the scheme of the embodiment of the present application, the heat exchange component includes a profile structure and a heat exchange structure, the profile structure includes a chamber with at least one end opening in the first direction, and multiple profile structures are arranged at intervals along the second direction. The heat exchange structure includes a first heat exchange part and multiple second heat exchange parts, and the second heat exchange part is detachably accommodated in the chamber. The structural strength of the profile structure is relatively high, and the profile structure plays a supporting role for the first heat exchange part to reduce the risk of the first heat exchange part being squeezed and damaged due to the expansion of the battery cell; the second heat exchange part is used to accommodate the heat exchange medium, and the second heat exchange structure is an injection molding structure with low material cost. The first heat exchange part extends along the second direction, and the first heat exchange part connects each second heat exchange part and the external environment. Through the flow of the heat exchange medium in the first heat exchange part and the second heat exchange part, the heat exchange structure can play a role in regulating the battery temperature through the profile structure, and by arranging the heat exchange structure to be detachably arranged in the chamber of the profile structure, when the heat exchange structure or the profile structure is damaged, only the damaged part needs to be replaced without causing damage to the other, so as to reduce the maintenance cost of the heat exchange component and the overall cost of the battery.

[0007] In some embodiments, the profile structure includes first side walls arranged opposite to each other in the second direction and second side walls arranged opposite to each other in the third direction, and the second heat exchange portion is located between the two first side walls and the two second side walls.

[0008] In the technical solution of the embodiment of the present application, the profile structure includes a first side wall arranged opposite to each other in the second direction and a second side wall arranged opposite to each other in the third direction, and the second heat exchange part is located between the two first side walls and the two second side walls, so that the first side wall can play a role of limiting and protecting the second heat exchange part in the second direction, and the second side wall can play a role of limiting and protecting the second heat exchange part in the third direction, thereby improving the service life of the second heat exchange component and reducing the difficulty of assembling the second heat exchange component.

[0009] In some embodiments, at least one first side wall is recessed on a surface of one side facing the chamber and is provided with a glue overflow groove, the glue overflow groove is used to accommodate the colloid, the first side wall includes a first end and a second end arranged opposite to each other in a first direction, and the glue overflow groove is arranged between the second heat exchange part and the first end.

[0010] In the technical solution of the embodiment of the present application, a glue overflow groove is provided on the first side wall, the glue overflow groove is used to accommodate the colloid, the first side wall includes a first end and a second end arranged opposite to each other in a first direction, and the glue overflow groove is provided between the second heat exchange part and the first end, so that when the colloid is poured into the chamber to fix the second heat exchange part, the glue overflow groove is provided on the first side wall to increase the colloid capacity in the chamber, increase the connection area between the colloid and the profile structure, and enhance the connection reliability of the profile structure and the second heat exchange part.

[0011] In some embodiments, the cross-sectional area of ​​the overflow groove gradually decreases from the second end to the first end.

[0012] In the technical solution of the embodiment of the present application, the cross-sectional area of ​​the glue overflow groove gradually decreases from the second end to the first end, so that during the process of pouring colloid into the chamber, the colloid can discharge the gas in the glue overflow groove to improve the connection reliability between the colloid and the profile structure.

[0013] In some embodiments, the profile structure further includes a bottom wall connected to one end of the first side wall in the first direction, and the bottom wall and the second heat exchange portion are connected along the first direction.

[0014] In the technical solution of an embodiment of the present application, the profile structure also includes a bottom wall connected to one end of the first side wall in the first direction, the bottom wall and the second heat exchange part are connected along the first direction, the bottom wall provides support and protection for the second heat exchange part in the first direction, and the bottom wall provides a uniform supporting surface for the second heat exchange part to reduce the risk of damage to the second heat exchange part due to stress concentration.

[0015] In some embodiments, a dimension of the bottom wall in the third direction is smaller than a dimension of the first side wall, and a fixing portion is provided between at least one end of the second side wall and the bottom wall in the third direction, and the fixing portion is used to connect the profile structure and the battery box.

[0016] In the technical solution of the embodiment of the present application, the size of the bottom wall in the third direction is smaller than that of the first side wall, and a fixing portion is provided between at least one end of the second side wall and the bottom wall in the third direction. The profile structure is connected to the battery box through the fixing portion so that the profile structure and the battery box are stably connected, and the preparation difficulty and cost are low.

[0017] In some embodiments, the second heat exchange portion includes two third walls arranged opposite to each other in the second direction, and a heat exchange chamber enclosed by the two third walls, the heat exchange chamber is used to accommodate heat exchange medium, and the third wall is used to contact at least one of the first side wall or the second side wall.

[0018] In the technical solution of the embodiment of the present application, the second heat exchange part includes a heat exchange chamber enclosed by a third wall surface, which reduces the difficulty of preparing the second heat exchange part and allows the second heat exchange part to be easily replaced; and the third wall surface contacts at least one of the first side wall or the second side wall, thereby increasing the contact area between the second heat exchange part and the profile structure, thereby improving the heat exchange efficiency between the second heat exchange part and the profile structure.

[0019] In some embodiments, the second heat exchange part also includes a grid plate, which is arranged in the heat exchange chamber and circumferentially connected to the heat exchange chamber. Multiple grid plates are arranged at intervals along the third direction. The grid plates are provided with through holes, and the through holes are staggered in the third direction.

[0020] In the technical solution of the embodiment of the present application, the second heat exchange part also includes a grid plate, which is arranged in the heat exchange chamber and circumferentially connected to the heat exchange chamber. A plurality of grid plates are arranged at intervals along a third direction, and through holes are arranged on the grid plates. The through holes are staggered in the third direction to form a curved heat exchange flow channel in the second heat exchange part, thereby extending the flow path of the heat exchange medium in the heat exchange chamber and improving the heat exchange performance of the second heat exchange part.

[0021] In some embodiments, the second heat exchange part further includes a connecting section, the connecting section is connected to the heat exchange cavity and the first heat exchange part, and the connecting section is connected to the second side wall along the first direction.

[0022] In the technical solution of the embodiment of the present application, the second heat exchange part also includes a connecting section, which is connected to the heat exchange chamber and the first heat exchange part. The connecting section and the second side wall are connected along the first direction so that the second side wall can play a role in positioning and supporting the heat exchange structure.

[0023] In a second aspect, an embodiment of the present application provides a battery box, comprising the heat exchange component of the embodiment of the first aspect mentioned above.

[0024] In some embodiments, the battery case includes a bottom plate with a positioning portion protruding from the bottom plate, the profile structure includes a first side wall arranged opposite to each other in the second direction and a second side wall arranged opposite to each other in the third direction, and a bottom wall connected to one end of the first side wall in the first direction, a fixing portion is provided between at least one end of the second side wall and the bottom wall in the third direction, and the positioning portion is accommodated in the fixing portion.

[0025] In the technical solution of the embodiment of the present application, a positioning portion is provided on the battery case, and the positioning portion cooperates with the positioning portion of the heat exchange component to limit the position of the heat exchange component in the battery case, thereby improving the stability of the heat exchange component.

[0026] In a third aspect, an embodiment of the present application provides a battery, comprising a battery cell and a battery case according to the embodiment of the second aspect, wherein at least part of the battery cells are arranged between adjacent profile structures.

[0027] In a fourth aspect, an embodiment of the present application provides an electrical device, comprising a battery as in the embodiment of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0029] Figure 1 A schematic diagram of the structure of a vehicle provided in one embodiment of the present application;

[0030] Figure 2 An exploded schematic diagram of a battery provided in one embodiment of the present application;

[0031] Figure 3 A schematic diagram of the structure of a battery module in a battery provided in an embodiment of the present application;

[0032] Figure 4 A schematic diagram of a portion of the structure of a battery provided in an embodiment of the present application;

[0033] Figure 5 An exploded view of a heat exchange component provided in an embodiment of the present application;

[0034] Figure 6 A schematic structural diagram of a first heat exchange portion of a heat exchange component provided in an embodiment of the present application;

[0035] Figure 7 A schematic structural diagram of a profile structure of a heat exchange component provided in an embodiment of the present application;

[0036] Figure 8 for Figure 7 A schematic diagram of the enlarged structure at A in the middle;

[0037] Fig. 9 An exploded view of a portion of the structure of a battery provided in an embodiment of the present application;

[0038] Fig.10 A schematic diagram of the structure of the second heat exchange part of the heat exchange component provided in an embodiment of the present application;

[0039] Fig.11 for Fig.10 Cross-sectional view at the middle BB.

[0040] Description of reference numerals:

[0041] 1. Vehicle; 2. Battery; 101. Motor; 102. Controller; 201. Battery module; 3. Battery cell;

[0042] 4. Box body; 41. Box body; 42. Cover plate; 43. Positioning part;

[0043] 5. Heat exchange components;

[0044] 51. Profile structure; 511. Chamber; 512. First side wall; 513. Second side wall; 515. Glue overflow groove; 516. Fixing part;

[0045] 52. heat exchange structure; 521. first heat exchange part; 522. second heat exchange part; 523. third wall; 524. grid plate; 5241. through hole; 525. connecting section; 526. connecting section. DETAILED DESCRIPTION

[0046] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0047] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0048] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0049] In addition, the technical terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0050] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0052] In the present application, the battery cell may include a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell or a magnesium-ion battery cell, etc., and the embodiments of the present application do not limit this. The battery cell may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this.

[0053] 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 may include a battery module or a battery pack. The battery generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0054] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor related to their development. As the power source of pure electric vehicles, power batteries are a key link in improving the performance of the entire vehicle. The temperature characteristics of batteries directly affect the performance, life and durability of electric vehicles. How to set up a cooling system in the battery to control the temperature of the battery is crucial for electric vehicles.

[0055] At present, the cooling system usually includes a brazed water-cooled plate arranged in a battery box. The brazed water-cooled plate includes two panels in contact with the battery cells and a heat exchange flow channel formed between the panels. During the preparation and process of the water-cooled plate, the panel may be damaged and deformed, the flow channel may be squeezed and blocked due to external force impacts such as collision and falling between the panels, or the battery cells may be squeezed or the flow channel may be blocked when the panel is used. All of these may cause the water-cooled plate to malfunction, which requires replacement and maintenance of the entire water-cooled plate, which increases the maintenance cost of the heat exchange components and the overall cost of the battery.

[0056] Based on the above problems, the present application provides a heat exchange component, which includes a profile structure and a heat exchange structure. The profile structure includes a chamber with at least one end opening in a first direction, and multiple profile structures are arranged at intervals along a second direction. The heat exchange structure includes a first heat exchange part and multiple second heat exchange parts, and the second heat exchange parts are detachably accommodated in the chamber. The structural strength of the profile structure is relatively high, and the profile structure supports the first heat exchange part to reduce the risk of the first heat exchange part being squeezed and damaged due to expansion of the battery cell; the second heat exchange part is used to accommodate a heat exchange medium, and the second heat exchange structure is an injection molding structure with low material cost. The first heat exchange part extends along the second direction, and the first heat exchange part connects each second heat exchange part and the external environment. Through the flow of the heat exchange medium in the first heat exchange part and the second heat exchange part, the heat exchange structure can adjust the battery temperature through the profile structure, and the heat exchange structure is detachably arranged in the chamber of the profile structure, so that when the heat exchange structure or the profile structure is damaged, only the damaged part needs to be replaced without causing damage to the other, thereby reducing the maintenance cost of the heat exchange component and the overall cost of the battery.

[0057] The technical solution described in the embodiments of the present application is applicable to electrical devices using batteries.

[0058] The electrical device may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, and the like. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, and the like; the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, and the like; the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like; the electric tool may include a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and an electric tool for railways, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer, and the like. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0059] It should be understood that the technical solutions described in the embodiments of the present application are not limited to the batteries and electrical equipment described above, but can also be applied to all batteries including a box and electrical equipment using the battery. However, for the sake of simplicity, the following embodiments are described using electric vehicles as an example.

[0060] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1 provided for some embodiments of the present application. Vehicle 1 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 2 is provided inside the vehicle 1, and the battery may be provided at the bottom, head or tail of the vehicle 1. Battery 2 may be used to power the vehicle 1, for example, battery 2 may be used as an operating power source for the vehicle 1. Vehicle 1 may also include a controller 102 and a motor 101, and the controller 102 is used to control the battery to power the motor 101, for example, for starting, navigating and operating power requirements of the vehicle 1 during driving.

[0061] In some embodiments of the present application, the battery can be used not only as an operating power source for the vehicle 1 , but also as a driving power source for the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .

[0062] In order to meet different power requirements, the battery 2 may include a plurality of battery cells, and a battery cell refers to the smallest unit that constitutes a battery module or a battery pack. A plurality of battery cells can be connected in series and / or in parallel via electrode terminals for use in various applications. The battery 2 mentioned in the present application includes a battery module or a battery pack. Among them, a plurality of battery cells can be connected in series, in parallel, or in mixed connection, and mixed connection refers to a mixture of series and parallel connection. In the embodiments of the present application, a plurality of battery cells can directly constitute a battery pack, or they can first constitute a battery module, and then the battery module constitutes a battery pack.

[0063] Figure 2 A schematic structural diagram of a battery 2 according to an embodiment of the present application is shown.

[0064] like Figure 2 As shown, the battery includes a battery case 4 and a battery cell (not shown), and the battery cell is accommodated in the battery case 4.

[0065] The battery box 4 can be a simple three-dimensional structure such as a single cuboid, cylinder or sphere, or a complex three-dimensional structure composed of simple three-dimensional structures such as cuboids, cylinders or spheres. The material of the battery box 4 can be alloy materials such as aluminum alloy, iron alloy, etc., or polymer materials such as polycarbonate, polyisocyanurate foam plastics, or composite materials such as glass fiber and epoxy resin.

[0066] The battery case 4 is used to accommodate battery cells, and the battery case 4 can be of various structures. In some embodiments, the battery case 4 can include a cover plate 42 and a case body 41, and the cover plate 42 and the case body 41 cover each other, and the cover plate 42 and the case body 41 together define a storage space for accommodating the battery cells 3. The case body 41 can be a hollow structure with one end open, and the cover plate 42 is a plate-like structure, and the cover plate 42 covers the open side of the case body 41 to form a battery case 4 with a storage space; the cover plate 42 and the case body 41 can also be a hollow structure with one side open, and the open side of the cover plate 42 covers the open side of the case body 41 to form a battery case 4 with a storage space. Of course, the cover plate 42 and the case body 41 can be of various shapes, such as a cylinder, a cuboid, etc.

[0067] In order to improve the sealing performance after the cover plate 42 is connected to the box body 41 , a sealing member, such as a sealant, a sealing ring, etc., may also be provided between the cover plate 42 and the box body 41 .

[0068] Assuming that the cover plate 42 covers the top of the box body 41 , the cover plate 42 can also be called an upper box cover, and the box body 41 can also be called a lower box cover.

[0069] In the battery 2, there can be one or more battery cells. If there are multiple battery cells, the multiple battery cells can be connected in series, in parallel, or in mixed connection. Mixed connection means that multiple battery cells are connected in series and in parallel. Multiple battery cells can be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells is accommodated in the battery box 4; of course, multiple battery cells can also be connected in series, in parallel, or in mixed connection to form a battery module 201, and then multiple battery modules 201 are connected in series, in parallel, or in mixed connection to form a whole, and accommodated in the battery box 4.

[0070] Figure 3 A schematic structural diagram of a battery module 201 according to an embodiment of the present application is shown.

[0071] In some embodiments, Figure 2 and Figure 3 As shown, there are multiple battery cells 3, and the multiple battery cells 3 are first connected in series, parallel or mixed to form a battery module 201. The multiple battery modules 201 are then connected in series, parallel or mixed to form a whole, and are accommodated in the battery box 4.

[0072] The multiple battery cells 3 in the battery module 201 can be electrically connected via a busbar component to achieve parallel connection, series connection, or mixed connection of the multiple battery cells 3 in the battery module 201 .

[0073] In the present application, the battery cell 3 may include a lithium-ion battery cell 3, a sodium-ion battery cell 3, or a magnesium-ion battery cell 3, etc., and the embodiments of the present application do not limit this. The battery cell 3 may be cylindrical, flat, rectangular, or in other shapes, etc., and the embodiments of the present application do not limit this. The battery cell 3 is generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and soft-pack battery cells, and the embodiments of the present application do not limit this. However, for the sake of simplicity, the following embodiments are all described using square battery cells 3 as an example.

[0074] See also Figures 4 to 8 , Figure 4 A schematic diagram of a portion of the structure of a battery provided in an embodiment of the present application; Figure 5 An exploded view of a heat exchange component provided in an embodiment of the present application; Figure 6 A schematic structural diagram of a first heat exchange portion of a heat exchange component provided in an embodiment of the present application; Figure 7 A schematic structural diagram of a profile structure of a heat exchange component provided in an embodiment of the present application; Figure 8 for Figure 7 Schematic diagram of the enlarged structure at point A in the middle.

[0075] First, as Figures 4 to 8 As shown, the present application provides a heat exchange component 5, which includes a profile structure 51 and a heat exchange structure 52. The profile structure 51 is used to contact the battery cell 3. The profile structure 51 includes a chamber 511 with at least one end open in the first direction X, and multiple profile structures 51 are arranged at intervals along the second direction Y; the heat exchange structure 52 includes a first heat exchange part 521 and multiple second heat exchange parts 522, the second heat exchange parts 522 are detachably accommodated in the chamber 511, and the second heat exchange parts 522 are used to accommodate heat exchange medium. The first heat exchange part 521 extends along the second direction Y, and the first heat exchange part 521 connects each second heat exchange part 522 with the external environment. The first direction X and the second direction Y intersect.

[0076] In the solution of the embodiment of the present application, the heat exchange component 5 includes a profile structure 51 and a heat exchange structure 52. The profile structure 51 includes a chamber 511 with at least one end opening in the first direction X. A plurality of profile structures 51 are arranged at intervals along the second direction Y. The heat exchange structure 52 includes a first heat exchange portion 521 and a plurality of second heat exchange portions 522. The second heat exchange portion 522 is detachably accommodated in the chamber 511. The profile structure 51 has a high structural strength. The profile structure 51 supports the first heat exchange portion 521 to reduce the risk of the first heat exchange portion 521 being squeezed and damaged due to the expansion of the battery cell 3. The second heat exchange portion 522 is used to accommodate the heat exchange medium. The structure 52 is an injection molding structure with low material cost. The first heat exchange part 521 extends along the second direction Y. The first heat exchange part 521 connects the second heat exchange parts 522 and the external environment. The heat exchange medium flows in the first heat exchange part 521 and the second heat exchange part 522, so that the heat exchange structure 52 can adjust the temperature of the battery 2 through the profile structure 51. The heat exchange structure 52 is detachably arranged in the chamber 511 of the profile structure 51, so that when the heat exchange structure 52 or the profile structure 51 is damaged, only the damaged part needs to be replaced without damaging the other, thereby reducing the maintenance cost of the heat exchange component 5 and reducing the overall cost of the battery 2.

[0077] The heat exchange component 5 includes a profile structure 51, which is processed from a profile. The profile is an object with a certain geometric shape that is made of iron or steel and a material with a certain strength and toughness (such as plastic, aluminum, glass fiber, etc.) through at least one of stamping, welding, casting, rolling, or extrusion molding. The profile structure 51 is simple, and its mold opening and processing costs are low. Exemplarily, the profile structure 51 is plate-shaped and is arranged between the second heat exchange part 522 and the battery cell 3.

[0078] Optionally, the profile structure 51 is made of metal material. The metal profile structure 51 can provide good support for the second heat exchange part 522 , and the metal profile structure 51 has good heat transfer effect to improve the heat exchange effect between the second heat exchange part 522 and the battery cell 3 .

[0079] Optionally, the profile structure 51 includes two plate-like profiles arranged in the second heat exchange portion 522 in its thickness direction, and the plate-like profile is fixed to the battery box 4 so that the plate-like profile can replace the second heat exchange portion 522 to resist and disperse the expansion and extrusion force of the battery cell 3; or the profile structure 51 includes two plate-like profiles arranged in the second heat exchange portion 522 in its thickness direction, and side walls or support members arranged between the two plate-like profiles and respectively connected to the two plate-like profiles, and the compression resistance of the profile structure 51 is improved by the side walls and / or support members.

[0080] The heat exchange component 5 includes a heat exchange structure 52, which includes a first heat exchange part 521 and a second heat exchange part 522. The second heat exchange part 522 is detachably arranged in the chamber 511 of the profile structure 51. The first heat exchange part 521 is connected to the external environment and the second heat exchange part 522. The heat exchange medium enters the second heat exchange part 522 through the first heat exchange part 521 and flows out to the outside through another first heat exchange part 521. The second heat exchange part 522 contacts the battery cell 3 through the profile structure 51. The second heat exchange part 522 adjusts the temperature of the battery cell 3 by the flow of the heat exchange medium, and can control the heating or cooling of the battery cell 3.

[0081] The second heat exchange part 522 is an injection molding structure. For example, the second heat exchange part 522 is made of PP (Polypropylene), PVC (Polyvinyl chloride), PC (Polycarbonate), ABS (Acrylonitrile Butadiene Styrene), etc. Compared with metal materials, the material and preparation cost of the second heat exchange part 522 of the injection molding structure are relatively low.

[0082] Optionally, the second heat exchange part 522 is tubular to save material costs, and the chamber 511 of the profile structure 51 can accommodate a heat exchange pipeline with a longer path, and the heat exchange pipeline is used to accommodate the heat exchange medium; or the second heat exchange part 522 is plate-shaped, and a heat exchange pipeline is opened in the second heat exchange part 522, and the heat exchange pipeline is used to accommodate the heat exchange medium to reduce the difficulty of assembling the second heat exchange part 522 and the profile structure 51.

[0083] Optionally, multiple profile structures 51 are arranged at intervals along the second direction Y, multiple second heat exchange parts 522 are respectively accommodated in the chamber 511 of the profile structure 51, the first heat exchange part 521 extends along the second direction Y, and multiple connecting sections 526 are arranged at intervals along the second direction Y on the second heat exchange part 522. The first heat exchange part 521 is connected to the second heat exchange part 522 through each connecting section 526, and the heat exchange medium can flow between the first heat exchange part 521 and the second heat exchange part 522 through the connecting section 526. The first heat exchange part 521 is made of metal to improve the structural strength of the first heat exchange part 521; or the first heat exchange part 521 is an injection molding structure to reduce the material cost of the heat exchange component 5.

[0084] Optionally, the first heat exchange portion 521 and / or the second heat exchange portion 522 is made of flexible material to increase the service life of the heat exchange component 5 .

[0085] Optionally, the two first heat exchange parts 521 are disposed at both ends of the second heat exchange part 522 to reduce the difficulty of processing the heat exchange channel in the second heat exchange part 522; or the two first heat exchange parts 521 are disposed at one end of the first heat exchange part 521 to reduce the volume of the heat exchange component 5.

[0086] By adopting the heat exchange component 5 of the embodiment of the present application, when the profile structure 51 is damaged, only the profile structure 51 needs to be replaced and repaired, and there is no need to replace the second heat exchange part 522, and the profile structure 51 has a lower preparation cost than the metal flow channel plate in the prior art; and when the flow channel of the heat exchange component 5 is damaged, only the second heat exchange part 522 needs to be replaced, and there is no need to replace the profile structure 51. The second heat exchange part 522 is an injection molding structure and its material cost is lower than the cost of metal plate parts.

[0087] Optionally, the edges of the profile structure 51 are rounded to reduce the risk of the profile structure 51 damaging the heat exchange structure 52 .

[0088] Optionally, the first heat exchange portion 521 and the second heat exchange portion 522 are integrally prepared to improve the structural strength of the heat exchange structure 52 ; or the first heat exchange portion 521 and the second heat exchange portion 522 are separately prepared to facilitate disassembly and maintenance of the second heat exchange portion 522 .

[0089] See also Fig. 9 , Fig. 9 An exploded view of a portion of the structure of a battery provided in an embodiment of the present application.

[0090] In some embodiments, Figures 7 to 9 As shown, the profile structure 51 includes first side walls 512 arranged opposite to each other in the second direction Y and second side walls 513 arranged opposite to each other in the third direction Z, and the second heat exchange portion 522 is located between the two first side walls 512 and the two second side walls 513 .

[0091] In these embodiments, the profile structure 51 includes a first side wall 512 relatively arranged in the second direction Y and a second side wall 513 relatively arranged in the third direction Z, and the second heat exchange part 522 is located between the two first side walls 512 and the two second side walls 513, so that the first side wall 512 can limit and protect the second heat exchange part 522 in the second direction Y, and the second side wall 513 can limit and protect the second heat exchange part 522 in the third direction Z, thereby improving the service life of the second heat exchange part 522 and reducing the difficulty of assembling the second heat exchange part 522.

[0092] The profile structure 51 includes first side walls 512 that are arranged opposite to each other in the second direction Y. The first side walls 512 play the role of resisting and sharing the expansion and squeezing force of the battery cell 3 for the second heat exchange part 522, positioning the second heat exchange part 522 in the second direction Y, and assuming the role of heat conduction between the battery cell 3 and the second heat exchange part 522. Optionally, the projection of the second heat exchange part 522 in the second direction Y is within the first side wall 512 to increase the heat exchange area between the second heat exchange part 522 and the battery cell 3.

[0093] The profile structure 51 further includes a second side wall 513 which is arranged opposite to each other in the third direction Z. The second side wall 513 is supported between the two first side walls 512 and serves to position the second heat exchange portion 522 in the third direction Z. A through hole 5241 is arranged on the second side wall 513 or a projection of the second side wall 513 in the third direction Z is on the second heat exchange portion 522, so that the first heat exchange portion 521 and the second heat exchange portion 522 can be connected across the second side wall 513. Optionally, the second side wall 513 is in the shape of a plate or a rod.

[0094] Optionally, the first side wall 512 and the second side wall 513 are integrally formed or the first side wall 512 and the second side wall 513 are welded to each other.

[0095] After the second heat exchange part 522 is accommodated in the chamber 511, a colloid is poured into the chamber 511 to fix the second heat exchange part 522 in the first direction X. No additional welding operation is required, which reduces the processing cost of the heat exchange component 5. Optionally, the colloid is a thermally conductive glue to improve the heat exchange effect of the heat exchange component 5. It should be clear that when the heat exchange component 5 needs to be repaired, the colloid is easy to remove in the current industrial context.

[0096] In some embodiments, Figure 7 and Figure 8 As shown, at least one first side wall 512 is recessed on a surface of one side facing the chamber 511 and is provided with a glue overflow groove 515, the glue overflow groove 515 is used to accommodate the colloid, the first side wall 512 includes a first end and a second end arranged opposite to each other in the first direction X, and the glue overflow groove 515 is arranged between the second heat exchange part 522 and the first end.

[0097] In these embodiments, a glue overflow groove 515 is provided on the first side wall 512, and the glue overflow groove 515 is used to accommodate the colloid. The first side wall 512 includes a first end and a second end that are relatively arranged in the first direction X. The glue overflow groove 515 is provided between the second heat exchange part 522 and the first end, so that when the colloid is poured into the chamber 511 to fix the second heat exchange part 522, the glue overflow groove 515 is provided on the first side wall 512 to increase the colloid capacity in the chamber 511, increase the connection area between the colloid and the profile structure 51, and enhance the connection reliability between the profile structure 51 and the second heat exchange part 522.

[0098] When the colloid is poured into the chamber 511 , the overflow groove 515 is provided on the first side wall 512 to increase the amount of colloid poured and to increase the contact area between the colloid and the profile structure 51 , so as to improve the fixing effect of the colloid on the second heat exchange part 522 .

[0099] Optionally, both first side walls 512 are provided with glue overflow grooves 515 to improve the fixing effect of the glue on the second heat exchange part 522. The specific shape of the glue overflow groove 515 can be designed by oneself, such as a strip groove, a dot groove, or a rectangular groove.

[0100] Optionally, the glue overflow groove 515 and the second heat exchange portion 522 are spaced apart in the first direction X so that the glue can fully enter the glue overflow groove 515 , thereby improving the connection effect of the glue on the profile structure 51 and the second heat exchange portion 522 .

[0101] In some embodiments, Figure 7 and Figure 8 As shown, the cross-sectional area of ​​the glue overflow groove 515 gradually decreases from the second end to the first end.

[0102] In these embodiments, the cross-sectional area of ​​the overflow groove 515 gradually decreases from the second end to the first end, so that during the process of pouring colloid into the chamber 511, the colloid can discharge the gas in the overflow groove 515 to improve the connection reliability between the colloid and the profile structure 51.

[0103] Exemplarily, the glue overflow groove 515 is semicircular or triangular in shape.

[0104] In some embodiments, Figures 7 to 9 As shown, the profile structure 51 further includes a bottom wall (not shown) connected to one end of the first side wall 512 in the first direction X, and the bottom wall is connected to the second heat exchange portion 522 along the first direction X.

[0105] In these embodiments, the profile structure 51 also includes a bottom wall connected to one end of the first side wall 512 in the first direction X, and the bottom wall is connected to the second heat exchange part 522 along the first direction X. The bottom wall provides support and protection for the second heat exchange part 522 in the first direction X, and the bottom wall provides a uniform supporting surface for the second heat exchange part 522 to reduce the risk of damage to the second heat exchange part 522 due to stress concentration.

[0106] The bottom wall is connected between the two first side walls 512, and the bottom wall provides support for the two first wall parts. After the second heat exchange part 522 is assembled in the chamber 511, the bottom wall carries the second heat exchange part 522. The bottom wall is a flat piece. When the heat exchange component 5 is assembled in the battery box 4, the bottom plate of the box 4 may be uneven, which easily causes stress concentration in the second heat exchange part 522 and makes the second heat exchange part 522 easily damaged. Therefore, a flat bottom wall is set between the bottom plate of the battery box 4 and the second heat exchange part 522 to disperse the pressure of the second heat exchange part 522 and improve the service life of the second heat exchange part 522.

[0107] Optionally, the bottom wall and the first side wall 512 are integrally formed. Exemplarily, the profile structure 51 is prepared by stamping, and the two first side walls 512 are respectively arranged on both sides of the bottom wall. During processing, the two first side walls 512 are bent around the bottom wall to form.

[0108] The heat exchange component 5 and the battery box 4 are fixedly connected, and the bottom wall and the battery box 4 are welded or riveted; or the heat exchange component 5 and the battery box 4 are detachably connected, and the bottom wall and the battery box 4 are snap-connected, bolted or adhesively connected.

[0109] In some embodiments, Figures 7 to 9 As shown, the size of the bottom wall in the third direction Z is smaller than that of the first side wall 512 , and a fixing portion 516 is provided between the second side wall 513 and at least one end of the bottom wall in the third direction Z, and the fixing portion 516 is used to connect the profile structure 51 and the battery box 4 .

[0110] In these embodiments, the size of the bottom wall in the third direction Z is smaller than that of the first side wall 512, a fixing portion 516 is provided between the second side wall 513 and at least one end of the bottom wall in the third direction Z, and the profile structure 51 is connected to the battery box 4 via the fixing portion 516, so that the profile structure 51 and the battery box 4 are stably connected, and the preparation difficulty and cost are low.

[0111] The heat exchange component 5 is assembled in the battery box 4, the battery box 4 includes a bottom plate, and a positioning portion 43 is protruding from the bottom plate. The profile structure 51 includes a bottom plate arranged in the first direction X, and a fixing portion 516 is arranged between the second side wall 513 and the bottom wall at least at one end in the third direction Z, and the positioning portion 43 is accommodated in the fixing portion 516. The positioning portion 43 and the positioning portion 43 of the heat exchange component 5 are plugged and matched to define the position of the heat exchange component 5 in the battery box 4, thereby improving the stability of the heat exchange component 5.

[0112] The positioning portion 43 is a protrusion disposed on the bottom plate. When the heat exchange component 5 is assembled to the battery box 4, the positioning portion 43 of the protrusion is accommodated in the fixing portion 516. Specifically, the fixing portion 516 is surrounded by a portion of the first side wall 512, a portion of the second side wall 513, and the bottom wall. The positioning portion 43 and the first side wall 512 are abutted and matched to limit the position of the profile structure 51 in the first direction X; the positioning portion 43 and the second side wall 513 are abutted and matched to limit the position of the profile structure 51 in the second direction Y.

[0113] The positioning portion 43 and the fixing portion 516 are plug-fitted, and the positioning portion 43 and the fixing portion 516 are clearance-fitted, which reduces the difficulty of fitting the positioning portion 43 and the fixing portion 516 .

[0114] Optionally, the positioning portion 43 is a groove provided on the bottom plate, and the fixing portion 516 is protrudingly provided on the profile structure 51 . When the heat exchange component 5 and the battery box 4 are assembled, the fixing portion 516 is accommodated in the positioning portion 43 .

[0115] See also Fig.10 , Fig.10 A schematic structural diagram of the second heat exchange portion of the heat exchange component provided in an embodiment of the present application.

[0116] In some embodiments, Figures 8 to 10 As shown, the second heat exchange portion 522 includes two third walls 523 arranged opposite to each other in the second direction Y, and a heat exchange chamber 511 enclosed by the two third walls 523 , the heat exchange chamber 511 is used to accommodate a heat exchange medium, and the third wall 523 is used to contact at least one of the first side wall 512 or the second side wall 513 .

[0117] In these embodiments, the second heat exchange portion 522 includes a heat exchange chamber 511 enclosed by a third wall 523, which reduces the difficulty of preparing the second heat exchange portion 522 and allows for convenient replacement of the second heat exchange portion 522; and the third wall 523 contacts at least one of the first side wall 512 or the second side wall 513, thereby increasing the contact area between the second heat exchange portion 522 and the profile structure 51, thereby increasing the heat exchange efficiency between the second heat exchange portion 522 and the profile structure 51.

[0118] The second heat exchange portion 522 is integrally injection-molded, and no additional welding connection is required between the two third walls 523 , thereby reducing the additional processing cost of the heat exchange component 5 .

[0119] The third wall surface 523 is in close contact with the first side wall 512 to maintain a good heat conduction effect between the first side wall 512 and the third wall surface 523 .

[0120] A heat exchange channel is formed in the chamber 511 of the second heat exchange part 522, and the heat exchange channel extends in a straight line along the third direction Z, thereby reducing the preparation cost of the second heat exchange part 522; or the heat exchange channel extends in a curved manner to increase the flow path of the heat exchange medium and improve the heat exchange efficiency of the second heat exchange part 522; or multiple heat exchange channels are arranged in an array along the first direction X to improve the heat exchange efficiency of the second heat exchange part 522.

[0121] See also Fig.11 , Fig.11 for Fig.10 Cross-sectional view at the middle BB.

[0122] In some embodiments, Figures 8 to 11 As shown, the second heat exchange part 522 also includes a grid plate 524, which is arranged in the heat exchange chamber 511 and circumferentially connected to the heat exchange chamber. A plurality of grid plates 524 are arranged at intervals along the third direction Z. The grid plates 524 are provided with through holes 5241, and the through holes 5241 are staggered in the third direction Z.

[0123] In these embodiments, the second heat exchange part 522 also includes a grid plate 524, which is arranged in the heat exchange chamber 511 and circumferentially connected to the heat exchange chamber, and a plurality of grid plates 524 are arranged at intervals along the third direction Z, and the grid plates 524 are provided with through holes 5241, and the through holes 5241 are staggered in the third direction Z to form a curved heat exchange flow channel in the second heat exchange part 522, thereby extending the flow path of the heat exchange medium in the heat exchange chamber 511 and improving the heat exchange performance of the second heat exchange part 522.

[0124] The second heat exchange part 522 includes a hollow heat exchange chamber 511 , in which a grid plate 524 is disposed. The grid plate 524 is blocked in the heat exchange chamber 511 in the third direction Z, and the heat exchange medium can only cross the grid plate 524 through the through holes 5241 disposed on the grid plate 524 .

[0125] A plurality of grid plates 524 are arranged along the third direction Z in the heat exchange chamber 511 , and the position of the through holes 5241 on each grid plate 524 in the first direction X is adjusted to form a curved heat exchange channel in the heat exchange chamber 511 .

[0126] Specifically, the grid plate 524 is connected to the cavity wall of the heat exchange chamber 511 at both ends of the first direction X, and the through hole 5241 is provided in the middle of the grid plate 524; or the grid plate 524 is connected to the cavity wall of the heat exchange chamber 511 at one end of the first direction X, and the heat exchange medium flows through the grid plate 524 from the other end of the grid plate 524. Exemplarily, each grid plate 524 is arranged along the third direction Z, and adjacent grid plates 524 are connected to the cavity wall of the heat exchange chamber 511 at different ends of the grid plate 524 in the first direction X.

[0127] In some embodiments, Figures 8 to 10As shown, the second heat exchange portion 522 further includes a connecting section 525 , which is connected to the heat exchange chamber 511 and the first heat exchange portion 521 , and the connecting section 525 is connected to the second side wall 513 along the first direction X.

[0128] In these embodiments, the second heat exchange part 522 also includes a connecting section 525, which is connected to the heat exchange cavity and the first heat exchange part 521, and the connecting section 525 and the second side wall 513 are connected along the first direction X so that the second side wall 513 can play a role in positioning and supporting the heat exchange structure 52.

[0129] Exemplarily, the connecting section 525 can be a round tube or a square tube, etc. Optionally, when the connecting section 525 is a round tube, an arc groove is provided at one end where the second side wall 513 and the connecting section 525 contact, and the connecting section 525 is accommodated in the arc groove to fix the position of the connecting section 525.

[0130] The connecting section 525 is plugged into the connecting section 526 of the first heat exchange part 521; or the first heat exchange part 521 includes a plurality of sub-sections, and adjacent sub-sections and the connecting section are connected via a three-way valve.

[0131] In a second aspect, an embodiment of the present application provides a battery box, comprising the heat exchange component of the embodiment of the first aspect mentioned above.

[0132] The battery box provided in the embodiment of the present application has the same technical effect as the heat exchange component provided in any of the above embodiments, and thus will not be described in detail here.

[0133] In some embodiments, Figures 7 to 9 As shown, the battery box 4 includes a bottom plate with a positioning portion 43 protruding from the bottom plate, the profile structure 51 includes a first side wall 512 arranged opposite to each other in the second direction Y and a second side wall 513 arranged opposite to each other in the third direction Z, and a bottom wall connected to one end of the first side wall 512 in the first direction X, a fixing portion 516 is provided between the second side wall 513 and the bottom wall at at least one end in the third direction Z, and the positioning portion 43 is accommodated in the fixing portion 516.

[0134] In these embodiments, a positioning portion 43 is provided on the battery case 4 , and the positioning portion 43 cooperates with the positioning portion 43 of the heat exchange component 5 to limit the position of the heat exchange component 5 in the battery case 4 , thereby improving the stability of the heat exchange component 5 .

[0135] In a third aspect, an embodiment of the present application provides a battery, comprising a battery cell and a battery box according to the embodiment of the second aspect, wherein at least part of the battery cells are arranged between adjacent profile structures.

[0136] The battery provided in the embodiment of the present application has the same technical effect as the battery case provided in any of the above embodiments, which will not be described in detail here.

[0137] Exemplarily, a battery assembly scheme is to first form a module with a profile structure and a battery cell, place the module into a battery case, and connect it to a positioning portion of the battery case through a fixing portion of the profile structure; secondly, place the second heat exchange portion in a cavity of the profile structure, and connect the first heat exchange portion and the second heat exchange portion; finally, inject colloid into the cavity to fix the heat exchange structure.

[0138] In a fourth aspect, an embodiment of the present application provides an electrical device, comprising a battery as in the embodiment of the second aspect.

[0139] The electric device provided in the embodiment of the present application has the same technical effect as the battery provided in the embodiment of the present application, and thus will not be described in detail here.

[0140] In some embodiments, Figures 1 to 11As shown, the heat exchange component 5 includes a profile structure 51 and a heat exchange structure 52. The profile structure 51 is used to contact the battery cell 3. The profile structure 51 includes a first side wall 512 arranged opposite to each other in the second direction Y and a second side wall 513 arranged opposite to each other in the third direction Z. The profile structure 51 also includes a bottom wall connected to one end of the first side wall 512 in the first direction X. The size of the bottom wall in the third direction Z is smaller than that of the first side wall 512. A fixing portion 516 is provided between at least one end of the second side wall 513 and the bottom wall in the third direction Z. The fixing portion 516 is used to connect the profile structure 51 and the battery box 4, the profile structure 51 includes a chamber 511 with at least one end opened in the first direction X, and multiple profile structures 51 are arranged at intervals along the second direction Y; the heat exchange structure 52 includes a first heat exchange part 521 and multiple second heat exchange parts 522, the second heat exchange part 522 is detachably accommodated in the chamber 511, the second heat exchange part 522 is located between the two first side walls 512 and the two second side walls 513, the second heat exchange part 522 is used to accommodate a heat exchange medium, the first heat exchange part 521 extends along the second direction Y, and the first heat exchange part 521 connects each second heat exchange part 522 with the external environment, At least one first side wall 512 is recessed on a surface of one side facing the chamber 511 and is provided with a glue overflow groove 515, the glue overflow groove 515 is used to accommodate the colloid, the first side wall 512 includes a first end and a second end arranged oppositely in the first direction X, the glue overflow groove 515 is arranged between the second heat exchange portion 522 and the first end, and the cross-sectional area of ​​the glue overflow groove 515 gradually decreases from the second end to the first end, the second heat exchange portion 522 includes two third walls 523 arranged oppositely in the second direction Y, and a heat exchange chamber 511 surrounded by the two third walls 523, the heat exchange chamber 511 is used to accommodate the heat exchange medium The third wall 523 is used to contact at least one of the first side wall 512 or the second side wall 513. The second heat exchange part 522 also includes a grid plate 524, which is arranged in the heat exchange chamber 511 and circumferentially connected to the heat exchange chamber. A plurality of grid plates 524 are arranged at intervals along the third direction Z. The grid plates 524 are provided with through holes 5241, and the through holes 5241 are staggered in the third direction Z. The second heat exchange part 522 also includes a connecting section 525, which is connected to the heat exchange chamber and the first heat exchange part 521, and the connecting section 525 is connected to the second side wall 513 along the first direction X.

[0141] In the solution of the embodiment of the present application, the heat exchange component 5 includes a profile structure 51 and a heat exchange structure 52. The profile structure 51 includes a chamber 511 with at least one end opening in the first direction X. A plurality of profile structures 51 are arranged at intervals along the second direction Y. The heat exchange structure 52 includes a first heat exchange portion 521 and a plurality of second heat exchange portions 522. The second heat exchange portion 522 is detachably accommodated in the chamber 511. The profile structure 51 has a high structural strength. The profile structure 51 supports the first heat exchange portion 521 to reduce the risk of the first heat exchange portion 521 being squeezed and damaged due to the expansion of the battery cell 3; the second heat exchange portion 522 is used to accommodate The heat exchange medium is contained, and the first heat exchange part 521 extends along the second direction Y. The first heat exchange part 521 is connected to each second heat exchange part 522 and the external environment. The heat exchange medium flows in the first heat exchange part 521 and the second heat exchange part 522, so that the heat exchange structure 52 can adjust the temperature of the battery 2 through the profile structure 51, and the heat exchange structure 52 is detachably arranged in the chamber 511 of the profile structure 51. When the heat exchange structure 52 or the profile structure 51 is damaged, only the damaged part needs to be replaced without damaging the other, thereby reducing the maintenance cost of the heat exchange component 5 and reducing the overall cost of the battery 2.

[0142] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A heat exchange component, characterized in that: include: A profile structure, used to contact the battery cell, the profile structure comprising a chamber with at least one end open in the first direction, and a plurality of the profile structures are arranged at intervals along the second direction; The heat exchange structure includes a first heat exchange part and multiple second heat exchange parts, the second heat exchange parts are detachably accommodated in the chamber, the second heat exchange parts are used to accommodate heat exchange medium, the first heat exchange part extends along the second direction, the first heat exchange part connects each of the second heat exchange parts and the external environment, the second heat exchange part is an injection molding structure, and the first direction and the second direction intersect.

2. The heat exchange component according to claim 1, characterized in that: The profile structure includes first side walls arranged opposite to each other in the second direction and second side walls arranged opposite to each other in the third direction, and the second heat exchange portion is located between the two first side walls and the two second side walls.

3. The heat exchange component according to claim 2, characterized in that: At least one of the first side walls is concavely provided with a glue overflow groove on a side surface facing the chamber, and the glue overflow groove is used to accommodate the colloid. The first side wall includes a first end and a second end that are arranged opposite to each other in the first direction, and the glue overflow groove is arranged between the second heat exchange portion and the first end.

4. The heat exchange component according to claim 3, characterized in that: In a direction from the second end to the first end, the cross-sectional area of ​​the glue overflow groove gradually decreases.

5. The heat exchange component according to claim 2, characterized in that: The profile structure further includes a bottom wall connected to one end of the first side wall in the first direction, and the bottom wall and the second heat exchange portion are connected along the first direction.

6. The heat exchange component according to claim 5, characterized in that: The size of the bottom wall in the third direction is smaller than that of the first side wall, and a fixing portion is provided between at least one end of the second side wall and the bottom wall in the third direction, and the fixing portion is used to connect the profile structure and the battery box.

7. The heat exchange component according to claim 2, characterized in that: The second heat exchange portion includes two third walls arranged opposite to each other in a second direction, and a heat exchange chamber surrounded by the two third walls, the heat exchange chamber is used to accommodate heat exchange medium, and the third wall is used to contact at least one of the first side wall or the second side wall.

8. The heat exchange component according to claim 7, characterized in that: The second heat exchange part also includes a grid plate, which is arranged in the heat exchange chamber and circumferentially connected to the heat exchange chamber. A plurality of grid plates are arranged at intervals along the third direction. Through holes are arranged on the grid plates, and the through holes are staggered in the third direction.

9. The heat exchange component according to claim 7, characterized in that: The second heat exchange part further includes a connecting section, the connecting section is connected to the heat exchange chamber and the first heat exchange part, and the connecting section and the second side wall are connected along the first direction.

10. A battery box, characterized in that: The heat exchange component comprises any one of claims 1 to 9.

11. The battery case according to claim 10, characterized in that: The battery box comprises a bottom plate, and a positioning portion is protruding from the bottom plate. The profile structure includes a first side wall arranged opposite to each other in the second direction, a second side wall arranged opposite to each other in the third direction, and a bottom wall connected to one end of the first side wall in the first direction, a fixing portion is provided between the second side wall and at least one end of the bottom wall in the third direction, and the positioning portion is accommodated in the fixing portion.

12. A battery, characterized in that: The battery box comprises a battery cell and the battery box as claimed in claim 10 or 11, wherein at least part of the battery cells are arranged between adjacent profile structures.

13. An electrical device, characterized in that: The battery comprising the battery as claimed in claim 12 above.

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