Heat exchange structure, battery pack and electric device

Abstract

A heat exchange structure, a battery pack and an electric device. The heat exchange structure comprises a first plate and a second plate, wherein the first plate is provided with a first recess, the first recess has a first bottom wall and a first side wall; and the second plate is provided with a second recess, the second recess has a second bottom wall and a second side wall, the first bottom wall and the second bottom wall are at least partially spaced apart so as to form a flow channel, the first side wall is connected to the second side wall, and the first recess of the first plate is configured to contain battery cells.

Description

Heat exchange structure, battery pack and electrical equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202322046003.6 and application date July 31, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of battery technology, and more particularly to a heat exchange structure, a battery pack, and electrical equipment. Background Art

[0004] In the existing technology, power batteries usually use a cooler welded to the tray profile frame to dissipate heat from the battery cells. The tray is usually welded aluminum alloy extruded profiles, but the tray structural profile frame is heavy and expensive, and the airtightness of the weld between the cooler and the tray is poor.

[0005] Application Contents

[0006] One purpose of the present application is to provide a new technical solution for a heat exchange structure, a battery pack and electrical equipment, which can at least solve the problems in the prior art of requiring a separate tray, resulting in a heavy overall structure and high cost.

[0007] According to the heat exchange structure provided in the present application, it includes: a first plate body, the first plate body is provided with a first groove, the first groove has a first bottom wall and a first side wall; the second plate body, the second plate body is provided with a second groove, the second groove has a second bottom wall and a second side wall, the first bottom wall and the second bottom wall are at least partially separated to form a flow channel, the first side wall is connected to the second side wall, and the first groove of the first plate body is used to accommodate a battery cell.

[0008] In addition, the vehicle according to the above embodiment of the present application may also have the following additional technical features:

[0009] According to an example of the present application, the second bottom wall is provided with a protrusion, the protrusion abuts against the first bottom wall, and the first bottom wall and the protrusion are at least partially spaced apart to form the flow channel.

[0010] According to an example of the present application, a flow channel groove is provided on the protrusion, and the flow channel groove and the first bottom wall together define the flow channel.

[0011] According to an example of the present application, there are multiple protrusions, and each of the protrusions extends along the curve of the second bottom wall.

[0012] According to an example of the present application, a portion of the second bottom wall except the protrusion is spaced apart from the first bottom wall to form a cavity, and a filling piece is provided in the cavity.

[0013] According to an example of the present application, the first side wall and the second side wall are partially spaced apart, and the second bottom wall and the second side wall cooperate with the first bottom wall and the first side wall to form the annular cavity, and the filler is an annular filling block corresponding to the annular cavity.

[0014] According to an example of the present application, a recessed area corresponding to the protrusion is formed on a side of the second bottom wall facing away from the first bottom wall, and a buffer is provided in the recessed area.

[0015] According to an example of the present application, a recessed area corresponding to the protrusion is formed on the side of the second bottom wall facing away from the first bottom wall, and a buffer member is provided on the side of the second bottom wall facing away from the first bottom wall, and a portion of the buffer member is located in the recessed area.

[0016] According to an example of the present application, the heat exchange structure further includes a bottom guard plate connected to a side of the second bottom wall facing away from the first bottom wall.

[0017] According to an example of the present application, the bottom guard plate is fixedly connected to a portion of the second bottom wall except the recessed area, and the bottom guard plate abuts against the buffer component.

[0018] According to an example of the present application, a first protrusion extending away from the first groove is provided on the first side wall, and a second protrusion extending away from the second groove is provided on the second side wall of the second plate body. The first protrusion and the second protrusion are connected and used to connect to the external structure.

[0019] According to an example of the present application, the second convex edge is arranged on a side of the first convex edge close to the second bottom wall, the first convex edge and the second convex edge are arranged opposite to each other, and the first convex edge and the second convex edge are fixedly connected.

[0020] The battery pack provided in this application includes the heat exchange structure described in the above embodiments.

[0021] According to an example of the present application, the battery pack further includes: battery cells, which are installed and arranged in the first groove; and a cover plate, which is covered on the first plate body.

[0022] The electrical equipment provided in this application includes the heat exchange structure described in the above embodiments; or includes the battery pack described in the above embodiments.

[0023] The heat exchange structure of the present application is constructed by providing a first groove in the first plate and a second groove in the second plate. The first bottom wall of the first groove and the second bottom wall of the second groove are separated to form a flow channel, and the first and second plates form a cooler. Simultaneously, the battery cells are arranged in the first groove to achieve cooling and heat dissipation of the battery cells. The first and second plates are integrated into a heat exchange structure that performs the dual functions of a tray and a cooler, eliminating the tray structure, reducing weight and cost, and improving the airtightness of the heat exchange structure.

[0024] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0026] FIG1 is a structural diagram of a heat exchange structure according to an embodiment of the present application;

[0027] FIG2 is an exploded view of a heat exchange structure according to an embodiment of the present application;

[0028] FIG3 is another structural diagram of a heat exchange structure according to an embodiment of the present application;

[0029] FIG4 is a cross-sectional view taken along line AA in FIG3 ;

[0030] FIG5 is a partial enlarged view of area B in FIG4 ;

[0031] FIG6 is a partial enlarged view of area C in FIG4 ;

[0032] FIG7 is a structural diagram of a battery pack according to an embodiment of the present application.

[0033] Figure numerals: heat exchange structure 100, first plate body 10, first groove 11, first bottom wall 12, first side wall 13, first protrusion 14, second plate body 20, second groove 21, second bottom wall 22, second side wall 23, protrusion 24, flow channel groove 25, recessed area 26, cavity 27, second protrusion 28, flow channel 29, filling member 30, buffer member 40, bottom guard plate 50, battery cell 200, cover plate 300, battery pack 1000. DETAILED DESCRIPTION

[0034] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0035] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0036] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0037] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0038] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0039] Throughout the specification and claims of this application, references to features using the terms "first" or "second" may explicitly or implicitly include one or more of these features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, the term "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0040] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0042] The heat exchange structure 100 according to the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0043] As shown in FIG. 1 to FIG. 3 , the heat exchange structure 100 according to an embodiment of the present application includes a first plate body 10 and a second plate body 20 .

[0044] Specifically, the first plate body 10 is provided with a first groove 11 having a first bottom wall 12 and a first side wall 13. The second plate body 20 is provided with a second groove 21 having a second bottom wall 22 and a second side wall 23. The first bottom wall 12 and the second bottom wall 22 are at least partially separated to form a flow channel 29. The first side wall 13 and the second side wall 23 are connected. The first groove 11 of the first plate body 10 is used to accommodate the battery cell 200.

[0045] In other words, referring to Figures 1 to 3, the heat exchange structure 100 according to the embodiment of the present application is mainly composed of a first plate body 10 and a second plate body 20. As shown in Figures 1 and 2, the first plate body 10 is provided with a first groove 11, and the first groove 11 has a first bottom wall 12 and a first side wall 13. The first bottom wall 12 and the first side wall 13 constitute the first plate body 10 with the first groove 11. The first groove 11 of the first plate body 10 can be used to accommodate the battery cell 200. The second plate body 20 is provided with a second groove 21, and the second groove 21 has a second bottom wall 22 and a second side wall 23, and the second bottom wall 22 and the second side wall 23 constitute the second plate body 20 with the second groove 21. By providing the first side wall 13 and the second side wall 23 to connect and enclose to form a double-layer frame, the anti-collision strength requirements of the tray profile frame in the prior art are met, and the problem of insufficient strength of the single-layer side wall and the need for a separate reinforcement structure is avoided.

[0046] The first plate body 10 is disposed on the second plate body 20. The first bottom wall 12 corresponds to the second bottom wall 22. The first bottom wall 12 and the second bottom wall 22 are at least partially separated to form a flow channel 29. A circulatory coolant, such as cooling water or other cooling medium, can be introduced into the flow channel 29. The coolant in the flow channel 29 can be used to cool and dissipate heat from the battery cell 200 in the first recess 11.

[0047] In the present application, the heat exchange structure 100 having a flow channel 29, which is composed of a first plate 10 and a second plate 20, can not only serve as a cooler to cool and dissipate heat from the battery cell 200, but can also serve as a heater to heat the battery cell 200. It can also serve as a tray to install and accommodate the battery cell 200. Therefore, the heat exchange structure 100 of the present application integrates the first plate 10 and the second plate 20 into a structure that can achieve the dual functions of a tray and a cooler, eliminating the tray structure, reducing weight and cost, and achieving good airtightness of the overall structure.

[0048] In the prior art, the cooler and the tray are two independent structures, and the cooler is used to cool and dissipate heat from the battery cells 200 in the tray. The tray is usually welded with aluminum alloy extruded profiles, and the cooler is welded to the tray profile frame to dissipate heat from the battery cells 200. The profile frame is heavy and expensive, and the welds between the cooler and the tray have poor airtightness. The present application directly sets the heat exchange structure 100 into a tray-like shape to achieve the diversification of the functions of the heat exchange structure 100, without the need to set up a separate tray, thus solving the problems of the prior art in which a separate tray is set up, such as heavy weight, high cost, and poor airtightness. At the same time, the first side wall 13 and the second side wall 23 are connected and enclosed to form a double-layer frame, so as to meet the anti-collision strength requirements of the tray profile frame in the prior art, and avoid the problem of insufficient strength of the single-layer side wall and the need for a separate reinforcement structure.

[0049] Thus, according to the heat exchange structure 100 of the embodiment of the present application, by providing a first groove 11 in the first plate 10 and a second groove 21 in the second plate 20, the first bottom wall 12 of the first groove 11 and the second bottom wall 22 of the second groove 21 are separated to form a flow channel 29, and the first plate 10 and the second plate 20 form a cooler. Simultaneously, the battery cell 200 is disposed within the first groove 11, achieving cooling and heat dissipation for the battery cell 200. The first plate 10 and the second plate 20 are integrated into a heat exchange structure 100 that performs the dual functions of a tray and a cooler, eliminating the tray structure, reducing weight and cost, and improving the airtightness of the heat exchange structure 100.

[0050] According to one embodiment of the present application, the second bottom wall 22 is provided with a protrusion 24 , the protrusion 24 abuts against the first bottom wall 12 , and the first bottom wall 12 and the protrusion 24 are at least partially spaced apart to form a flow channel 29 .

[0051] That is to say, referring to Figures 2, 5 and 6, the second bottom wall 22 of the second groove 21 is provided with a protrusion 24, and the protrusion 24 is in a large concave-convex shape. The protrusion 24 on the second bottom wall 22 can abut against the first bottom wall 12. In addition, the first bottom wall 12 of the first plate body 10 is at least partially separated from the protrusion 24 to form a flow channel 29 for transmitting coolant to achieve heat dissipation of the battery cell 200 in the first groove 11. The protrusion 24 can be connected to the bottom wall of the first plate body 10 by brazing or other means. After brazing, failure shaping can be performed to obtain higher structural strength and improve the stability and airtightness of the overall structure of the heat exchange structure 100.

[0052] According to one embodiment of the present application, a flow channel 25 is provided on the protrusion 24 , and the flow channel 25 and the first bottom wall 12 together define a flow channel 29 .

[0053] In other words, referring to Figures 2, 5, and 6, a flow channel 25 may be provided on the protrusion 24, and the flow channel 25 and the first bottom wall 12 may jointly define a flow channel 29. The coolant circulates in the flow channel 29, removing heat from the battery cell 200 in the first groove 11, thereby dissipating heat from the battery cell 200.

[0054] In some specific embodiments of the present application, there are multiple protrusions 24 , and each protrusion 24 extends along the curve of the second bottom wall 22 .

[0055] That is, a plurality of protrusions 24 can be provided, and each protrusion 24 can extend along the curve of the second bottom wall 22. As shown in FIG2 , the flow channel grooves 25 on each protrusion 24 and the first bottom wall 12 respectively define a plurality of flow channels 29. The area enclosed by the plurality of flow channels 29 is roughly equivalent to the area of ​​the first bottom wall 12 of the first groove 11, ensuring uniform heat dissipation of the battery cell 200 in the first groove 11, further improving the heat dissipation efficiency of the heat exchange structure 100.

[0056] In the present application, the plurality of flow channels 29 may be U-shaped, annular or in other shapes. The specific shape of the flow channel 29 may be set according to actual needs and will not be described in detail in the present application.

[0057] According to one embodiment of the present application, a portion of the second bottom wall 22 excluding the protrusion 24 is spaced apart from the first bottom wall 12 to form a cavity 27 , and a filling piece 30 is provided in the cavity 27 .

[0058] In other words, as shown in Figures 4 and 5 , the portion of the second bottom wall 22 excluding the protrusion 24 can be separated from the first bottom wall 12 to form a cavity 27. A filler 30 can be disposed within the cavity 27. By disposing the filler 30 within the cavity 27, the load-bearing capacity of the first and second plates 10, 20 can be further improved, thereby increasing the load-bearing strength of the heat exchange structure 100 and ensuring that the overall structure of the heat exchange structure 100 is more stable after the battery cell 200 is installed.

[0059] In some specific embodiments of the present application, the first bottom wall 12 and the second bottom wall 22 are partially separated, and the second bottom wall 22 and the second side wall 23 cooperate with the first bottom wall 12 and the first side wall 13 to form an annular cavity 27, and the filler 30 is an annular filling block corresponding to the annular cavity 27.

[0060] That is to say, referring to Figures 2 and 5, the first bottom wall 12 and the second bottom wall 22 can be partially spaced apart, and the second bottom wall 22 and the second side wall 23 cooperate with the first bottom wall 12 and the first side wall 13 to form an annular cavity 27. The annular cavity 27 can be roughly located at the connection position between the second bottom wall 22 and the second side wall 23 of the second plate body 20. The connection position between the second bottom wall 22 and the second side wall 23 of the second plate body 20 can be understood as the edge position of the bottom of the second groove 21. The annular cavity 27 is recessed downward relative to the first bottom wall 12 of the first plate body 10, and the filler 30 is configured as an annular filling block corresponding to the annular cavity 27 (see Figure 2). The annular filling block is filled in the annular cavity 27, which effectively increases the bearing strength of the heat exchange structure 100.

[0061] Among them, by setting the first side wall 13 and the second side wall 23 to be connected and enclosed to form a double-layer frame, the anti-collision strength requirements of the pallet profile frame in the prior art can be met, avoiding the problem of insufficient strength of the single-layer side wall and the need for an additional reinforcement structure.

[0062] The filling piece 30 of the present application can be made of a foaming agent or a foaming filling glue. By setting the filling piece 30, the bearing capacity of the heat exchange structure 100 can be improved. At the same time, the filling piece 30 is light in weight and has certain thermal insulation, cushioning and impact resistance properties, which can provide good protection for the heat exchange structure 100.

[0063] According to one embodiment of the present application, a recessed area 26 corresponding to the protrusion 24 is formed on a side of the second bottom wall 22 facing away from the first bottom wall 12 , and a buffer member 40 is disposed in the recessed area 26 .

[0064] That is, referring to Figures 2 and 6 , a recessed area 26 is provided on the side of the second bottom wall 22 facing away from the first bottom wall 12 (the bottom surface of the second plate body 20). This recessed area 26 corresponds to the protrusion 24 on the second bottom wall 22, giving the second bottom wall 22 of the second plate body 20 a concave-convex structure, further increasing the overall structural strength of the second plate body 20. Referring to Figure 2 , a buffer member 40 may be provided within the recessed area 26. By filling the recessed area 26 of the second bottom wall 22 with the buffer member 40, the buffer member 40 exhibits heat-insulating, impact-resistant, and lightweight properties, effectively protecting the bottom of the battery cell 200.

[0065] According to one embodiment of the present application, a recessed area 26 corresponding to the protrusion 24 is formed on the side of the second bottom wall 22 facing away from the first bottom wall 12, and a buffer member 40 is provided on the side of the second bottom wall 22 facing away from the first bottom wall 12, and a portion of the buffer member 40 is located in the recessed area 26.

[0066] In other words, referring to Figures 2, 5 and 6, a recessed area 26 corresponding to the protrusion 24 is provided on the side of the second bottom wall 22 facing away from the first bottom wall 12 (the bottom of the second plate body 20). A buffer 40 is provided on the side of the second bottom wall 22 facing away from the first bottom wall 12. The buffer 40 can be made of a foam board or other structure with a buffering function. The buffer 40 can be set as a plate structure, covering the buffer 40 on the bottom of the second plate body 20. At the same time, a part of the buffer 40 can be filled in the recessed area 26. The buffer 40 has the properties of heat preservation, buffering, impact resistance and light weight, and can effectively protect the bottom of the battery cell 200. The buffer 40 can be made of heat-insulating and impact-resistant materials. The specific shape and thickness of the buffer 40 can be specifically set according to actual needs and will not be described in detail in this application.

[0067] In the present application, the first plate 10 is a temperature-averaging plate, and the second plate 20 is a flow channel plate. The first plate 10 and the second plate 20 can be integrally stamped from aluminum plates, and the first plate 10 and the second plate 20 are integrated. The first plate 10 and the second plate 20 constitute a heat exchange structure 100 having a flow channel 29, which can not only serve as a cooler to cool and dissipate heat for the battery cell 200. It can also be used as a tray to install and accommodate the battery cell 200. Therefore, the heat exchange structure 100 of the present application integrates the first plate 10 and the second plate 20 into a structure that can realize the dual functions of a tray and a cooler, eliminates the tray structure, and reduces weight and cost.

[0068] The welding of the first plate body 10 and the second plate body 20 can eliminate the self-melting welding process, and the temperature equalizing plate (first plate body 10) and the flow channel plate (second plate body 20) are integrally bonded and brazed. Welding does not destroy the strength of the wood. After brazing, the overall shape is corrected to control deformation and obtain higher strength. At the same time, gaps (cavities) are reserved around the temperature equalizing plate and the flow channel plate for filling with a foaming agent (filler 30), which can greatly increase the overall bearing strength of the heat exchange structure 100. The heat exchange structure 100 of the present application replaces the traditional tray for carrying the battery cell 200, and at the same time has the performance of cooling and heat dissipation. The bottom of the second plate body 20 can be sprayed with a protective material (such as a buffer 40). The buffer 40 has the properties of heat preservation, buffering, impact resistance and light weight, and can effectively protect the bottom of the battery cell 200.

[0069] According to one embodiment of the present application, as shown in FIG2 , the heat exchange structure 100 further includes a bottom guard plate 50, which is connected to the side of the second bottom wall 22 facing away from the first bottom wall 12. In other words, the heat exchange structure 100 further includes the bottom guard plate 50, which is disposed on the bottom surface of the second plate body 20. By assembling the bottom guard plate 50, the bottom of the heat exchange structure 100 can be well protected, achieving excellent bottom protection.

[0070] According to one embodiment of the present application, the bottom guard plate 50 is fixedly connected to a portion of the second bottom wall 22 except the recessed area 26 , and the bottom guard plate 50 is adhesively connected to the buffer component 40 .

[0071] That is, referring to Figure 2 , the bottom guard plate 50 can be fixedly connected to the second bottom wall 22, excluding the recessed area 26. The bottom guard plate 50 can be connected to the second bottom wall 22 of the second plate body 20 using bolts, welding, or other fixed connection methods to ensure a secure connection between the bottom guard plate 50 and the second plate body 20, thereby improving the overall stability of the heat exchange structure 100. The bottom guard plate 50 can also be adhesively connected to the buffer member 40 to provide effective protection for the battery cells 200.

[0072] According to one embodiment of the present application, a first protrusion 14 extending away from the first groove 11 is provided on the first side wall 13 of the first plate body 10, and a second protrusion 28 extending away from the second groove 21 is provided on the second side wall 23 of the second plate body 20. The first protrusion 14 and the second protrusion 28 are connected and used to connect to the external structure.

[0073] That is, referring to Figures 1 and 2, a first flange 14 is provided on the first side wall 13 of the first plate body 10, and the first flange 14 extends away from the first groove 11. A second flange 28 may be provided on the second side wall 23 of the second plate body 20, and the second flange 28 extends away from the second groove 21. By providing the first flange 14 on the first plate body 10 and the second flange 28 on the second plate body 20, the first plate body 10 and the second plate body 20 are respectively constructed into a ship-shaped structure. The first flange 14 and the second flange 28 are connected to each other. By providing the first flange 14 and the second flange 28, the installation and overlap of the first plate body 10 and the second plate body 20 are facilitated, the stability and sealing of the structure after the first plate body 10 and the second plate body 20 are improved, and the installation and overlap of the first plate body 10 and the second plate body 20 and the external structural parts are facilitated.

[0074] According to one embodiment of the present application, a second flange 28 can be provided on the side of the first flange 14 facing the second bottom wall 22. The first flange 14 and the second flange 28 are disposed opposite each other, so that the first flange 14 and the second flange 28 are stacked. The first flange 14 and the second flange 28 are fixedly connected. In some embodiments, the first flange 14 and the second flange 28 can be connected by brazing, which can not only improve the stability of the connection between the first plate 10 and the second plate 20, but also ensure the sealing of the connection between the first plate 10 and the second plate 20. At the same time, the provision of the first flange 14 and the second flange 28 also facilitates the installation and overlap of the first plate 10 and the second plate 20 with external structural components.

[0075] In summary, according to the heat exchange structure 100 of the embodiment of the present application, by providing a first groove 11 on the first plate 10 and a second groove 21 on the second plate 20, the first bottom wall 12 of the first groove 11 and the second bottom wall 22 of the second groove 21 are separated to form a flow channel 29, and the first plate 10 and the second plate 20 constitute a cooler. At the same time, the battery cell 200 is provided in the first groove 11 to achieve cooling and heat dissipation of the battery cell 200. The first plate 10 and the second plate 20 are integrated into a heat exchange structure 100 that can realize the dual functions of a tray and a cooler, eliminating the tray structure, reducing weight and cost, and improving the airtightness of the overall structure. At the same time, by providing a buffer member 40 with heat preservation, buffering, impact resistance and light weight, the bottom of the battery cell 200 can be effectively protected. And by assembling the bottom guard plate 50, the bottom of the heat exchange structure 100 can be well protected, achieving an excellent bottom protection effect.

[0076] Of course, for those skilled in the art, other structures of the heat exchange structure 100 and its working principles are understandable and achievable, and will not be described in detail in this application.

[0077] According to a second aspect of the present application, a battery pack 1000 is provided, comprising the heat exchange structure 100 of the aforementioned embodiment. Since the heat exchange structure 100 according to the embodiment of the present application has the aforementioned technical effects, the battery pack 1000 according to the embodiment of the present application can also have corresponding technical effects. Specifically, the battery pack 1000 of the present application utilizes the heat exchange structure 100, providing a first groove 11 on the first plate 10 of the heat exchange structure 100 and a second groove 21 on the second plate 20 of the heat exchange structure 100. The first bottom wall 12 of the first groove 11 and the second bottom wall 22 of the second groove 21 are spaced apart to form a flow channel 29, with the first plate 10 and the second plate 20 forming a cooler. Simultaneously, the battery cell 200 is disposed within the first groove 11 to achieve cooling and heat dissipation of the battery cell 200. The first plate 10 and the second plate 20 are integrated into a heat exchange structure 100 that performs the dual functions of a tray and a cooler, eliminating the tray structure and reducing the overall weight and cost of the battery pack 1000. The battery pack 1000 is effectively protected by the cushioning member 40, which provides heat preservation, cushioning, impact resistance, and light weight. Furthermore, the bottom guard plate 50 provides excellent bottom protection for the battery pack 1000, enhancing its heat preservation, cushioning, and impact resistance.

[0078] According to one embodiment of the present application, the battery pack 1000 further includes a battery cell 200 and a cover plate 300 .

[0079] In some embodiments, the battery cells 200 are installed and arranged in the first groove 11. The cover plate 300 is covered on the first plate 10.

[0080] That is, the battery pack 1000 also includes battery cells 200 and a cover plate 300. The battery cells 200 can be installed and arranged in the first groove 11 of the heat exchange structure 100. The heat exchange structure 100, which is composed of the first plate 10 and the second plate 20 and has a flow channel 29, not only serves as a cooler to cool and dissipate heat from the battery cells 200, but also serves as a tray for mounting and accommodating the battery cells 200. The provision of a filler 30 not only improves the load-bearing capacity of the battery pack 1000, but also makes the filler 30 lightweight and possesses certain thermal insulation, cushioning, and impact resistance properties, thus providing good protection for the battery pack 1000. By filling the recessed area 26 of the second bottom wall 22 with a buffer member 40, the bottom of the battery cells 200 can be effectively protected, further improving the safety of the battery pack 1000. The cover plate 300 can be placed on the first plate 10 of the heat exchange structure 100, enclosing the battery cells 200 within the heat exchange structure 100 and ensuring the overall structural integrity of the battery pack 1000.

[0081] In summary, the battery pack 1000 according to the embodiment of the present application comprises a first groove 11 provided on the first plate 10 of the heat exchange structure 100, and a second groove 21 provided on the second plate 20 of the heat exchange structure 100. The first bottom wall 12 of the first groove 11 and the second bottom wall 22 of the second groove 21 are separated to form a flow channel 29, with the first plate 10 and the second plate 20 forming a cooler. The battery cells 200 are positioned within the first groove 11, thereby cooling and dissipating heat from the cells 200. The first and second plates 10, 20 are integrated into a heat exchange structure 100 that performs the dual functions of a tray and a cooler, eliminating the tray structure and reducing the overall weight and cost of the battery pack 1000. Furthermore, the provision of a buffer member 40, which provides thermal insulation, cushioning, impact resistance, and lightweight properties, effectively protects the battery pack 1000. Furthermore, the installation of a bottom guard plate 50 effectively protects the bottom of the battery pack 1000, achieving excellent bottom protection and enhancing the thermal insulation, cushioning, and impact resistance of the battery pack 1000.

[0082] Of course, for those skilled in the art, other structures of the battery pack 1000 and its working principles are understandable and achievable, and will not be described in detail in this application.

[0083] According to a third aspect of the embodiments of the present application, an electrical device is provided, comprising the heat exchange structure 100 of the above-described embodiments, or comprising the battery pack of the above-described embodiments. Since the heat exchange structure 100 or battery pack according to the embodiments of the present application has the above-described technical effects, the electrical device according to the embodiments of the present application can also have the corresponding technical effects. Specifically, the electrical device of the present application utilizes the heat exchange structure 100 or battery pack, and by providing a first groove 11 on the first plate 10 of the heat exchange structure 100 and a second groove 21 on the second plate 20 of the heat exchange structure 100, the first bottom wall 12 of the first groove 11 and the second bottom wall 22 of the second groove 21 are separated to form a flow channel 29, with the first plate 10 and the second plate 20 forming a cooler. Simultaneously, a battery cell 200 is disposed within the first groove 11, thereby cooling and dissipating heat from the battery cell 200 in the battery pack within the electrical device. The first plate 10 and the second plate 20 are integrated into a heat exchange structure 100 that performs the dual functions of a tray and a cooler, eliminating the tray structure and reducing the overall weight and cost of the electrical device. The provision of a buffer member 40, which provides thermal insulation, cushioning, impact resistance, and lightweight properties, effectively protects electrical equipment and enhances its safety. Furthermore, the installation of a bottom guard plate 50 effectively protects the bottom of the battery pack, achieving excellent bottom protection and enhancing the thermal insulation, cushioning, and impact resistance of the electrical equipment.

[0084] Of course, for those skilled in the art, other structures and working principles of the electrical equipment are understandable and achievable, and will not be described in detail in this application.

[0085] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A heat exchange structure (100), characterized in that: include: A first plate body (10), wherein the first plate body (10) is provided with a first groove (11), and the first groove (11) has a first bottom wall (12) and a first side wall (13); A second plate body (20), wherein the second plate body (20) is provided with a second groove (21), wherein the second groove (21) has a second bottom wall (22) and a second side wall (23), wherein the first bottom wall (12) and the second bottom wall (22) are at least partially separated to form a flow channel (29), and the first side wall (13) and the second side wall (23) are connected, and the first groove (11) of the first plate body (10) is used to accommodate a battery cell.

2. The heat exchange structure (100) according to claim 1, characterized in that: The second bottom wall (22) is provided with a protrusion (24), the protrusion (24) abuts against the first bottom wall (12), and the first bottom wall (12) and the protrusion (24) are at least partially spaced apart to form the flow channel (29).

3. The heat exchange structure (100) according to claim 2, characterized in that: A flow channel groove (25) is provided on the protrusion (24), and the flow channel groove (25) and the first bottom wall (12) together define the flow channel (29).

4. The heat exchange structure (100) according to any one of claims 2 to 3, characterized in that: There are a plurality of protrusions (24), and each of the protrusions (24) extends along a curve of the second bottom wall (22).

5. The heat exchange structure (100) according to any one of claims 3 to 4, characterized in that: The portion of the second bottom wall (22) other than the protrusion (24) is spaced apart from the first bottom wall (12) to form a cavity (27), and a filling piece (30) is provided in the cavity (27).

6. The heat exchange structure (100) according to claim 5, characterized in that: The first side wall (13) and the second side wall (23) are partially spaced apart, and the second bottom wall (22) and the second side wall (23) cooperate with the first bottom wall (12) and the first side wall (13) to form an annular cavity (27), and the filling piece (30) is an annular filling block corresponding to the annular cavity (27).

7. The heat exchange structure (100) according to claim 6, characterized in that: A recessed area (26) corresponding to the protrusion (24) is formed on a side of the second bottom wall (22) facing away from the first bottom wall (12), and a buffer component (40) is provided in the recessed area (26).

8. The heat exchange structure (100) according to any one of claims 6 to 7, characterized in that: A recessed area (26) corresponding to the protrusion (24) is formed on the side of the second bottom wall (22) facing away from the first bottom wall (12), and a buffer component (40) is provided on the side of the second bottom wall (22) facing away from the first bottom wall (12), and a portion of the buffer component (40) is located in the recessed area (26).

9. The heat exchange structure (100) according to any one of claims 7 to 8, characterized in that: It also includes a bottom guard plate (50), wherein the bottom guard plate (50) is connected to a side of the second bottom wall (22) facing away from the first bottom wall (12).

10. The heat exchange structure (100) according to claim 9, characterized in that: The bottom guard plate (50) is fixedly connected to a portion of the second bottom wall (22) except the recessed area (26), and the bottom guard plate (50) is in abutment with the buffer component (40).

11. The heat exchange structure (100) according to any one of claims 1 to 10, characterized in that: The first side wall (13) is provided with a first convex edge (14) extending away from the first groove (11), and the second side wall (23) of the second plate body (20) is provided with a second convex edge (28) extending away from the second groove (21), and the first convex edge (14) and the second convex edge (28) are connected and used for connecting to an external structure.

12. The heat exchange structure (100) according to claim 11, characterized in that: The second convex edge (28) is arranged on a side of the first convex edge (14) close to the second bottom wall (22); the first convex edge (14) and the second convex edge (28) are arranged opposite to each other, and the first convex edge (14) and the second convex edge (28) are fixedly connected.

13. A battery pack, characterized in that: The heat exchange structure (100) comprises any one of claims 1 to 12.

14. The battery pack (1000) according to claim 13, characterized in that: Also includes: A battery cell (200), wherein the battery cell (200) is installed and arranged in the first groove (11); A cover plate (300), wherein the cover plate (300) is covered on the first plate body (10).

15. An electrical equipment, characterized in that: A heat exchange structure (100) comprising any one of claims 1 to 12; or Includes the battery pack (1000) as described in claim 13 or 14.

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