Heat exchanger, battery pack and electric equipment

Abstract

The utility model relates to the technical field of batteries, in particular to a heat exchanger, a battery pack and electric equipment. The heat exchanger comprises a heat exchange piece and a fixing structure; the heat exchange piece is provided with at least one heat exchange surface; the fixing structure is connected to the heat exchange part and extends in the direction away from the heat exchange part, the end, away from the heat exchange part, of the fixing structure is used for installing an external power distribution assembly, and the heat exchange face is used for exchanging heat with the power distribution assembly. According to the heat exchanger, the fixing structure is arranged between the heat exchange piece and the power distribution assembly for connection, and the problem that a cooling structure of a power distribution assembly in traditional design is complex is solved.

Description

TECHNICAL FIELD

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

[0002] In recent years, the progress of battery technology has led to the widespread use of battery packs in electric vehicles and energy storage systems. In order to ensure that the battery can maintain in a suitable temperature range during operation, it is usually necessary to provide cooling devices such as cold plates in the battery pack, which are mainly used for cooling the battery module. At the same time, the integrated layout of the power distribution assembly is also increasingly valued in order to improve the overall integration of the battery pack.

[0003] However, the cooling design of the power distribution assembly in the related art is complex. UTILITY MODEL CONTENT

[0004] The present application provides a heat exchanger, a battery pack and an electric device, which are used to solve the problem of complex cooling design of the power distribution assembly in the battery pack in the related art.

[0005] The first aspect of the present application provides a heat exchanger, comprising:

[0006] a heat exchange member having at least one heat exchange surface; and

[0007] a fixing structure connected to the heat exchange member and extending towards a direction away from the heat exchange member, and an end of the fixing structure away from the heat exchange member is used to install an external power distribution assembly, and the heat exchange surface is used to exchange heat with the power distribution assembly.

[0008] In a possible implementation manner, the heat exchange member comprises a uniform temperature plate, the heat exchange surface is arranged on the uniform temperature plate, and the fixing structure is connected to the uniform temperature plate.

[0009] In a possible implementation manner, the heat exchange member comprises a flow channel member, the heat exchange surface is arranged on the flow channel member, the flow channel member is used to circulate a heat exchange medium, and the fixing structure is connected to the flow channel member.

[0010] In a possible implementation manner, the heat exchange member further comprises a uniform temperature plate, the flow channel member is connected to the uniform temperature plate, and the fixing structure is connected to the uniform temperature plate.

[0011] In a possible implementation manner, the number of flow channel members is a plurality, the plurality of flow channel members are connected to the uniform temperature plate and are arranged at intervals; and / or the number of fixing structures is a plurality, the plurality of fixing structures are connected to the uniform temperature plate and are arranged at intervals.

[0012] In a possible implementation manner, the flow channel member and the fixing structure are arranged at intervals.

[0013] In a possible implementation, the fixing structure comprises a support, a connecting piece and a fastener, the support is connected to the heat exchange element through the fastener, the connecting piece is connected to an end of the support away from the heat exchange element, and the connecting piece is used to connect the power distribution assembly.

[0014] In a possible implementation, the support is provided with a mounting hole, and the connecting piece is at least partially accommodated in the mounting hole.

[0015] In a possible implementation, the support is further provided with a positioning flange, the positioning flange protrudes into the mounting hole, and the connecting piece is connected to the support through the positioning flange.

[0016] In a possible implementation, the heat exchange element is provided with a first connecting hole; the support comprises a support part and an extension part connected to a circumferential direction of the support part, the extension part is provided with a second connecting hole, the connecting piece is connected to an end of the support part away from the extension part, and the fastener passes through the first connecting hole and the second connecting hole to fixedly connect the extension part and the heat exchange element.

[0017] In a possible implementation, a side of the heat exchange element away from the fixing structure is provided with a receiving groove, and a head of the fastener is accommodated in the receiving groove.

[0018] In a possible implementation, the heat exchange element is provided with a protruding part, the protruding part protrudes outward from a side of the heat exchange element toward the fixing structure to form the receiving groove, and the support is fixedly connected to the protruding part through the fastener.

[0019] The second aspect of the present application provides a battery pack, comprising:

[0020] The heat exchanger according to any one of the preceding items; and

[0021] The power distribution assembly is connected to the fixing structure of the heat exchanger.

[0022] In a possible implementation, the battery pack further comprises a battery assembly, and the battery assembly and the power distribution assembly are respectively arranged on opposite sides of the heat exchange element.

[0023] In a possible implementation, the heat exchange element comprises a vapor chamber and a flow channel element, the flow channel element is connected to the vapor chamber, the heat exchange surface is arranged on the flow channel element, the fixing structure is connected to the vapor chamber, and the flow channel element is used to circulate a heat exchange medium; and the battery assembly is connected to a side of the vapor chamber away from the flow channel element.

[0024] In a possible implementation, the shell of the power distribution assembly is provided with a connecting flange, the connecting flange is arranged in a spaced manner with the heat exchange member, and the power distribution assembly is connected with the fixing structure through the connecting flange.

[0025] In a possible implementation, the shell of the power distribution assembly is further provided with a receiving cavity, the connecting flange is at least partially located in the receiving cavity, and the fixing structure is at least partially accommodated in the receiving cavity.

[0026] In a possible implementation, the battery assembly comprises a plurality of battery modules arranged in a first direction in sequence, the power distribution assembly, the heat exchange member and at least one of the battery modules are arranged in a second direction in sequence, the first direction and the second direction intersect; the heat exchange member comprises a plurality of receiving portions, and the battery modules are arranged in the receiving portions.

[0027] In a possible implementation, the battery pack further comprises a heat exchange plate, the battery assembly comprises a first battery assembly and a second battery assembly, and the power distribution assembly, the heat exchange member, the first battery assembly, the heat exchange plate and the second battery assembly are arranged in sequence in a stacking manner.

[0028] The third aspect of the present application provides a battery pack.

[0029] The embodiments of the present application have the following beneficial effects:

[0030] The heat exchanger of the present embodiment solves the problem of complex cooling design of the power distribution assembly in the conventional design by arranging the fixing structure to connect between the heat exchange member and the power distribution assembly. The heat exchanger of the present embodiment is arranged in cooperation with the power distribution assembly through the heat exchange surface, so that the heat exchanger can effectively improve the heat exchange efficiency, ensure that the power distribution assembly can be maintained in an appropriate working temperature range in the battery pack, and further improve the safety and stability of the entire battery pack. At the same time, the heat exchanger has a simple structure, and the power distribution assembly is convenient to disassemble and assemble. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related art descriptions. Obviously, the drawings in the following description can also be obtained by those skilled in the art without creative labor.

[0032] Figure 1 A perspective view of a battery pack in an embodiment of the present application is shown;

[0033] Figure 2 An exploded view of a battery pack in an embodiment of the present application is shown.

[0034] Figure 3 A partial structure schematic view of the heat exchanger in the embodiment of the present application is shown.

[0035] Figure 4 A partial structure schematic view of the heat exchanger in the embodiment of the present application is shown.

[0036] Figure 5 A cross-section schematic view of the fixing structure in the embodiment of the present application is shown.

[0037] Figure 6 An exploded view of the fixing structure in the embodiment of the present application is shown.

[0038] Reference signs:

[0039] 1-battery pack; 10-heat exchanger; 100-heat exchange element; 110-thermal equalizing plate; 112-first connecting hole; 113-protruding part; 1131-receiving groove; 120-flow channel element; 121-heat exchange surface; 130-receiving part; 200-fixing structure; 210-supporting element; 211-supporting part; 2111-mounting hole; 2112-positioning flange; 212-extending part; 2121-second connecting hole; 220-connecting element; 230-fastener; 20-power distribution assembly; 201-power distribution box; 2011-connecting flange; 2012-receiving cavity; 202-high and low voltage panel; 30-battery assembly; 301-first battery assembly; 3011-first battery module; 3012-battery support; 302-second battery assembly; 3021-second battery module; 3022-tray; 40-heat exchange plate; 50-enclosure. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0041] In recent years, the progress of battery technology has led to the widespread use of battery packs in electric vehicles and energy storage systems. In order to ensure that the battery can maintain an appropriate temperature range during operation, it is usually necessary to provide cooling devices such as cold plates in the battery pack, which are mainly used for cooling the battery module. At the same time, the integrated layout of the power distribution assembly is increasingly valued in order to improve the overall integration of the battery pack. Due to the improvement of system integration, the heat exchanger, battery module and power distribution assembly need to be designed to reasonably utilize the limited space to adapt to the compact installation environment.

[0042] However, the related art has multiple technical problems in the design of the heat exchanger and the power distribution assembly. Due to the space limitation of the battery pack, the use of multiple cooling elements can result in an overly complex overall structure, increasing the difficulty of installation and maintenance. For example, some solutions use two cold plates to cool the battery module and the power distribution assembly, respectively, but this design occupies more installation space, affecting the integration of the system and possibly causing low heat exchange efficiency. In addition, if the cold plates need to be connected by pipes, it further increases the complexity of installation, leading to an increase in installation cost and waste of human resources.

[0043] In addition, the power distribution assembly connection structure in the related art is usually complex and difficult to design. When the design needs to be optimized in a limited space environment, the efficiency of the traditional heat exchanger is often limited. In this case, when the battery module and the power distribution assembly are located in the same space, the heat exchanger cannot effectively and timely transfer heat to the power distribution assembly, which may cause overheating and affect the stability and safety of the system.

[0044] Based on this, referring to Figures 1 to 6 The utility model embodiment provides a heat exchanger 10, which comprises a heat exchange element 100 and a fixing structure 200: the heat exchange element 100 has at least one heat exchange surface 121; the fixing structure 200 is connected to the heat exchange element 100 and extends towards the direction away from the heat exchange element 100, and the end of the fixing structure 200 away from the heat exchange element 100 is used to install an external power distribution assembly 20, and the heat exchange surface 121 is used to exchange heat with the power distribution assembly 20.

[0045] The heat exchanger 10 of the embodiment solves the problem of complex structure and difficult installation between the power distribution assembly 20 and the heat exchanger 10 in the traditional design by connecting the fixing structure 200 between the heat exchange element 100 and the power distribution assembly 20. Therefore, the heat exchanger 10 can effectively improve the heat exchange efficiency, ensure that the power distribution assembly 20 can maintain an appropriate working temperature range in the battery pack 1, and improve the safety and stability of the entire battery pack 1, while the heat exchanger 10 is simple in structure and facilitates the disassembly and assembly of the power distribution assembly 20.

[0046] The cooperation of the fixing structure 200 and the heat exchange element 100 in the embodiment reduces the installation difficulty of the power distribution assembly 20, effectively improving the integration of the combined structure of the heat exchanger 10 and the power distribution assembly 20. At the same time, the simple structure design reduces the complexity of installation and maintenance, realizes convenient disassembly and assembly, and adapts to the optimization layout demand of the battery pack 1 in the limited space. The problems of installation difficulty and high maintenance cost caused by multiple cooling elements in the prior art are effectively solved, and the practicability of the battery pack 1 is further improved.

[0047] In addition, by optimizing the structure of the heat exchanger 10, the heat exchanger 10 in the embodiment can facilitate the installation and layout of the power distribution assembly 20 while keeping the overall structure compact, the power distribution assembly 20 and the battery assembly can share the heat exchanger 10, and the overheating phenomenon caused by heat accumulation between the battery assembly and the power distribution assembly 20 is avoided, the heat management capability of the battery pack 1 and the integration of the battery pack 1 are enhanced, the structure is simple, and the overall structure of the battery pack 1 is compact.

[0048] In the process of assembling the power distribution assembly 20 and the fixing structure 200, it is necessary to ensure the accurate alignment between the power distribution assembly 20 and the fixing structure 200. This process is crucial because reasonable alignment not only ensures the stability of the connection but also optimizes the efficiency of heat exchange. After the alignment is completed, the fixing structure 200 and the power distribution assembly 20 are fixed by using detachable connecting elements such as screws, rivets, and buckles, which provides convenience for future maintenance and replacement. Specifically, screw connection exhibits good strength when bearing tensile and shear forces, has a wide range of applications, is easy to operate, and can achieve precise positioning; rivet connection ensures the compactness of the structure while providing durable fixation, which is suitable for high-strength and vibration environments; and buckle connection greatly improves the disassembly and assembly efficiency, which is convenient for use in occasions that require frequent replacement or maintenance. Therefore, the selection of the specific connection method should be flexibly adjusted according to the actual application scenario and design requirements.

[0049] It should be noted that in the embodiment, the heat exchange element 100 is usually provided with a heat exchange surface 121, and the design of the heat exchange surface 121 is directed to the components to be cooled such as the battery module or the power distribution assembly 20. This design aims to ensure that the heat exchange element 100 can fully receive heat from the components to be cooled and effectively remove the heat through the heat exchange process to prevent overheating. Specifically, the components to be cooled can be directly attached to the heat exchange surface 121, thereby increasing the contact area of heat exchange and improving the overall heat conduction efficiency. In addition, if there is a small gap between the components and the heat exchange surface 121, air as a heat conduction medium can still play a role, which is conducive to achieving a certain degree of cooling effect.

[0050] Referring to Figure 3As shown, in an embodiment, the heat exchange member 100 comprises a flow channel member 120, the heat exchange surface 121 is arranged on the flow channel member 120, the flow channel member 120 is used for flowing the heat exchange medium, and the fixing structure 200 is connected to the flow channel member 120. In this embodiment, the design purpose of the flow channel member 120 is to efficiently transport the heat exchange medium, so as to effectively transfer the heat from the power distribution assembly 20 to the outside of the heat exchanger 10.

[0051] In this embodiment, by adopting the scheme of the flow channel member 120 cooperating with the power distribution assembly 20, the heat can be transferred by the heat exchange surface 121 arranged on the flow channel member 120 and the power distribution assembly 20. It should be noted that when the fixing structure 200 is arranged on the flow channel member 120, the fixing structure 200 needs to avoid affecting the internal medium flow of the flow channel member 120, for example, the fixing structure 200 is fixed to the outer wall of the flow channel member 120, or the fixing structure 200 is arranged at the end of the flow channel member 120, so as to avoid affecting the transfusion efficiency of the flow channel member 120.

[0052] Further, the heat exchange member 100 further comprises a uniform temperature plate 110, the flow channel member 120 is connected to the uniform temperature plate 110, and the fixing structure 200 is connected to the uniform temperature plate 110.

[0053] In this embodiment, by combining the flow channel member 120 and the uniform temperature plate 110, the uniform temperature plate 110 can effectively receive heat and transfer the heat to the outside through the flow channel member 120, so as to maintain the temperature balance and stability of the system. The structure of the flow channel member 120 is arranged so that the heat exchange medium can fully absorb heat and effectively dissipate heat during flowing through the uniform temperature plate 110 and the heat exchange surface 121.

[0054] Specifically, the heat exchange medium in this embodiment can be various liquids or gases, such as water, ethylene glycol, coolant, air, etc. These heat exchange media all have good heat conduction performance, and can efficiently transfer heat from the uniform temperature plate 110 to a wider environment, ensuring the overall heat dissipation capacity of the heat exchange member 100. In a preferred embodiment, water as the heat exchange medium has high specific heat capacity and good thermal conductivity, and can realize efficient heat transfer; and ethylene glycol and the like exhibit excellent fluidity in low-temperature environments, which can prevent ice blockage and prolong the service life of the system.

[0055] In this embodiment, the flow channel member 120 is attached to the surface of the vapor chamber 110 to make the overall structure of the heat exchange member 100 more compact and reduce the gap between components. This design not only saves space and improves the integration of the system, but also reduces heat loss caused by air gaps, thereby improving heat exchange efficiency. At the same time, the close attachment of the flow channel member 120 also helps to reduce the impact of vibration on the heat exchange system, further improving the stability of the entire heat exchange member. At the same time, the surface of the vapor chamber 110 away from the flow channel member 120 can be used to cooperate with the battery assembly 30 of the battery pack 1, so that the heat exchanger 10 can simultaneously exchange heat with the power distribution assembly 20 and the battery assembly 30.

[0056] In an embodiment, the number of flow channel members 120 is multiple, and these flow channel members 120 are uniformly connected to the vapor chamber 110 and arranged at intervals. This design not only effectively improves the heat exchange efficiency between the heat exchanger 10 and the power distribution assembly 20 by increasing the total contact area of the flow channel member 120, but also ensures uniform distribution of fluid in multiple flow channels, reducing local flow dead zones, thereby further optimizing heat exchange effect. Specifically, the arrangement of multiple flow channel members 120 can be parallel configuration, staggered arrangement or other reasonable geometric arrangement, and the specific arrangement form can be selected according to the actual thermal system requirements.

[0057] At the same time, the number of fixing structures 200 is also multiple, and they are uniformly dispersed on the vapor chamber 110. Such a design enhances the connection strength between the fixing structure 200 and the power distribution assembly 20, ensuring that the power distribution assembly 20 can obtain more stable support in high load and high temperature environment. Through the multi-point connection mode, the pressure applied on each fixing point can be effectively dispersed, and the risk of structural failure caused by local stress concentration can be reduced. In addition, this design can also effectively improve the uniformity of the support of the power distribution assembly 20, avoid deformation or failure caused by uneven support, and help to ensure the reliability of the entire heat exchanger 10.

[0058] In summary, by applying multiple flow channel members 120 and multiple fixing structures 200 to the heat exchange member 100 at the same time, not only the heat exchange efficiency is significantly improved, but also the stability and reliability of the heat exchanger 10 are enhanced, laying a solid foundation for realizing an efficient and stable thermal management system. In an embodiment, the flow channel member 120 and the fixing structure 200 are arranged at intervals. Through this design, the delivery amount of the flow channel member 120 can be ensured not to be disturbed, thereby improving the flow efficiency of the heat exchange medium. The flow channel member 120 provides a smooth channel inside, so that the heat exchange medium can flow smoothly and achieve effective heat exchange.

[0059] Because the fixed structure 200 avoids the flow channel component 120, the overall structure of the heat exchanger 10 remains compact. This spacing not only reduces the space occupied between components but also reduces the difficulty of assembly and maintenance caused by component overlap. Furthermore, in practical applications, the compact design is particularly suitable for situations where space is limited or weight is a concern. By optimizing the relationship between the flow channel component 120 and the fixed structure 200, the heat exchanger 10 can significantly reduce its thickness while maintaining efficient heat dissipation performance.

[0060] Furthermore, the smaller thickness provides more options for the integrated installation of the heat exchanger 10. This design facilitates more flexible spatial layouts in various applications such as electrical equipment, power systems, and cooling systems. For example, in the design of electric vehicles, it can effectively save interior space, thereby providing more possibilities for the layout of battery modules or other key components.

[0061] In another embodiment, the heat exchange surface 121 may be disposed on the heat exchange plate 110, and the fixing structure 200 is connected to the heat exchange plate 110. In this embodiment, the heat exchange plate 110 is designed to distribute the temperature evenly in the thermal system, thereby optimizing the heat dissipation performance of the entire heat exchange component 100.

[0062] The vapor chamber 110 achieves effective heat exchange with the components to be cooled through contact with the power distribution assembly 20. On one hand, the vapor chamber 110 can quickly absorb heat emitted from the power distribution assembly 20 and its related components. In terms of material and structural design, the vapor chamber 110 should be made of materials with excellent thermal conductivity, such as aluminum alloy or copper, which can quickly dissipate heat and ensure the high efficiency of the heat exchange process. Furthermore, the thickness and dimensions of the vapor chamber 110 should be optimized according to the actual heat load to provide sufficient strength and rigidity while promoting better heat conduction.

[0063] A heat exchange surface 121 is provided on the surface of the heat exchange plate 110. The shape and treatment of the heat exchange surface 121 can further enhance its heat exchange efficiency with the environment. For example, a raised or corrugated structural design can be adopted to increase the specific surface area of ​​the heat exchange surface 121. This helps to increase the heat exchange value and also promotes the flow of fluids (such as air or coolant) on its surface, further improving the heat dissipation performance.

[0064] Specifically, see Figure 5 and Figure 6 As shown, the fixed structure 200 includes a support member 210, a connector 220 and a fastener 230. The support member 210 is connected to the heat exchanger 100 through the fastener 230. The connector 220 is connected to the end of the support member 210 away from the heat exchanger 100. The connector 220 is used to connect the power distribution assembly 20.

[0065] When assembling the fixing structure 200 of this embodiment, the support member 210 is first fixed to the heat exchanger 100 using fasteners 230. The fasteners 230 used in this process can be of various types, such as screws, pins, rivets, etc. These fasteners have good mechanical strength, ensuring the durability and stability of the connection. The selection of fasteners 230 can be adjusted according to specific load requirements to achieve the optimal fixing effect.

[0066] Subsequently, the power distribution component 20 is aligned with the connector 220, and the power distribution component 20 is fixed to the connector 220 using fastening elements such as screws. This design allows the entire fixed structure 200 to be easily assembled and disassembled, and enables quick replacement of the power distribution component 20 during maintenance, reducing downtime and improving the overall operating efficiency and reliability of the heat exchanger 10.

[0067] In some embodiments, the connector 220 may have a threaded hole inside, further enhancing the connection stability with the power distribution assembly 20. The threaded hole design enables a simple and effective mechanical locking, ensuring that it will not loosen due to vibration or temperature changes during operation, thereby guaranteeing the safe and stable operation of the equipment.

[0068] Specifically, the connector 220 and the support 210 can be a unified integrated structure or separate structures. When the support 210 and the connector 220 are an integrated structure, their connection strength and overall rigidity are higher, enabling them to better withstand external loads. Simultaneously, assembly steps are reduced during manufacturing, lowering production costs. However, if they are separate structures, greater flexibility is offered in design and maintenance.

[0069] When the support member 210 and the connector 220 are separate structures, they can be combined and fixed by various methods such as riveting, welding, or threaded connection. Riveting is a strong and durable connection method, suitable for applications that need to withstand large shear forces; welding provides a high-strength connection, especially suitable for connecting metal materials. The molten metal formed after heating has good adhesion properties, which can effectively improve the overall rigidity of the connector.

[0070] The advantages of threaded connections lie in their ease of assembly and disassembly, facilitating later maintenance and replacement. Specifically, threaded connections can use fastening elements such as screws or nuts, allowing technicians to easily disassemble and replace connectors 220 and support members 210 during system maintenance or troubleshooting, avoiding difficult repairs due to damage to the overall structure. Due to the widespread availability of standard parts, the required components are easier to procure and relatively inexpensive. Furthermore, the uniformity of standard parts simplifies production and assembly processes, improving production efficiency.

[0071] In terms of ease of maintenance, a key advantage of this design is that when a component fails or wears out, only that component needs to be replaced, without disassembling the entire structure, significantly reducing maintenance time and costs. If the support 210 and the connector 220 were an integrated structure, replacing either component would require extensive disassembly, increasing maintenance complexity and time costs.

[0072] Furthermore, the split structure design allows for optimized selection of different connectors and supports in engineering applications. For example, materials with specific properties can be selected based on the actual operating environment's temperature, pressure, and other conditions to improve durability and reliability. By using multiple materials to compose the supports 210 and connectors 220, different heat treatments or surface treatments can be achieved, resulting in better corrosion resistance and mechanical properties at the contact interfaces, thereby further enhancing the overall service life and efficiency of the heat exchanger 10.

[0073] In one embodiment, the support member 210 has a mounting hole 2111, and the connector 220 is at least partially accommodated within the mounting hole 2111.

[0074] The mounting hole 2111 allows for precise positioning of the connector 220. In practical applications, the mounting hole 2111 of the support 210 can be set to different shapes and sizes, such as circular, square, or polygonal, depending on the actual engineering needs, specifically based on the shape of the connector 220 and its load-bearing requirements.

[0075] With the help of the mounting hole 2111, the combined structure of the support 210 and the connector 220 is not only more compact, but also improves overall stability. With the connector 220 securely housed within the mounting hole 2111, relative displacement or vibration caused by external forces is effectively reduced, ensuring that the fixed structure 200 will not loosen, shake, or fail during use. At the same time, this compact design also helps save space and enhances the adaptability of the heat exchanger 100, which is especially important in confined installation environments.

[0076] Furthermore, the tight fit between the support member 210 and the connector 220 also has a positive impact on load transfer. When an external load is applied to the support member 210, the mounting hole 2111 can evenly distribute the load onto the connector 220, thereby reducing stress concentration at a single connection point, improving the overall load-bearing capacity of the structure, and reducing the risk of early fatigue failure. Therefore, this design not only enhances the safety of the mechanical connection but also extends the service life of the heat exchanger 10.

[0077] Specifically, the support member 210 is also provided with a positioning flange 2112, which protrudes into the mounting hole 2111. The connector 220 is connected to the support member 210 through the positioning flange 2112. This design, by adding a positioning flange 2112 inside the mounting hole 2111, achieves a more reliable and precise fixation between the connector 220 and the support member 210.

[0078] This configuration provides an effective alignment reference for the positioning flange 2112, enabling the connector 220 to maintain its position better during installation and reducing the risk of poor connection or failure due to misalignment.

[0079] In some embodiments, the outer peripheral wall of the connector 220 may be provided with a positioning groove to cooperate with the positioning flange 2112. The design of the positioning groove can effectively enhance the mutual cooperation between the connector 220 and the support 210.

[0080] When the connector 220 is connected to the support 210 by riveting, the first step can be to insert the connector 220 into the positioning flange 2112, and then rivet it to abut against the opposite axial sides of the positioning flange 2112. Riveting is a commonly used connection technique that is relatively simple to operate and can generate a certain preload during the connection process, thereby improving the strength and stability of the connection. In particular, this riveting method can ensure that the connector 220 remains tightly connected to the support 210 under stress, thus effectively reducing the risk of loosening and detachment due to vibration or deformation.

[0081] Furthermore, the combination of the positioning flange 2112 and the positioning groove effectively prevents the connector 220 from shifting during use, making the overall connection structure more tear-resistant and wrinkle-resistant. This advantage is particularly evident in high-demand mechanical equipment, greatly improving the safety and durability of the mechanical connection. Of course, when the outer wall of the connector 220 is provided with a corresponding locking position to the positioning flange 2112, such as a locking groove on the positioning flange 2112, the connector 220 engages and aligns with the locking groove on the positioning flange 2112. This configuration also limits the rotation of the connector 220 relative to the support member 210 after the connector 220 is connected to the support member 210.

[0082] In one embodiment, the heat exchanger 100 has a first connection hole 112; the support member 210 includes a support portion 211 and an extension portion 212 connected to each other, the extension portion 212 is connected to the circumference of the support portion 211, the extension portion 212 has a second connection hole 2121, the connector 220 is connected to the end of the support portion 211 away from the extension portion 212, and the fastener 230 passes through the first connection hole 112 and the second connection hole 2121 to fix the extension portion 212 and the heat exchanger 100.

[0083] When assembling the fixing structure 200 of this embodiment, the operation steps are as follows: first, align the second connecting hole 2121 of the extension 212 with the first connecting hole 112 of the heat exchanger 100; then, simultaneously insert the fastener 230 into the first connecting hole 112 and the second connecting hole 2121 to achieve a stable connection between the extension 212 and the heat exchanger 100. This process ensures the correctness and firmness of the connection, improves assembly efficiency, and simplifies the process steps.

[0084] In some embodiments, since the heat spreader 110 has a flat surface, it is preferable to provide the first connecting hole 112 on the heat spreader 110 so that the extension 212 can fit against the heat spreader 110. In this case, the extension 212 is also preferably a flat plate structure so as to fit tightly against the heat spreader 110, thereby making the whole structure more compact.

[0085] Specifically, the number of second connecting holes 2121 can be set to multiple, and at least one first connecting hole 112 can correspond to it. When the number of first connecting holes 112 is also multiple, multiple first connecting holes 112 can be aligned with multiple second connecting holes 2121 simultaneously to improve the installation accuracy of the support member 210. This design provides more connection methods for the structure, enhances the adaptability and flexibility of the fixing structure 200, and thus provides a more efficient assembly method.

[0086] In one embodiment, the support portion 211 is configured as a tubular structure, and the extension portion 212 is symmetrically arranged from the central axis of the support portion 211. Furthermore, there are two first connecting holes 112 and two second connecting holes 2121, symmetrically arranged on opposite sides of the support portion 211. This design not only ensures the uniformity of force on the support portion 210 after the fastener 230 is connected to the support portion 210 and the heat exchanger 100, but also provides a guarantee for the overall stability of the structure, reducing the risk of displacement or failure caused by uneven force distribution.

[0087] In some embodiments, the number of support portions 211 can be multiple. The advantage of this arrangement is that when the fixing structure 200 is connected to an external component, one support member 210 can be connected to at least one external component through multiple support portions 211 respectively. This design improves the load-bearing capacity and adaptability of the equipment, especially in heavy-duty or high-intensity operating environments.

[0088] Specifically, the support part 211 and the extension part 212 can be manufactured as a single unit, for example, by directly using raw materials to form the support part 210 through processes such as cutting and stamping; alternatively, they can be separate units, assembled into the overall structure of the support part 210 through methods such as welding, threaded connection, riveting, and snap-fit. This flexibility allows manufacturers to choose the most suitable processing method based on actual equipment requirements and production conditions.

[0089] In one embodiment, the fastener 230 can be a rivet. After the fastener 230 is connected to the first connecting hole 112 and the second connecting hole 2121, the extension 212 is fixed to the heat exchanger 100 by riveting. The advantage of using a rivet as a fastener is that the riveting method can create a permanent connection, enhancing the stability and durability of the connection, and performing well in high temperature and pressure environments, thereby ensuring the long-term reliability of the heat exchanger 100.

[0090] Further, see Figure 5 As shown, a receiving groove 1131 is provided on the side of the heat exchanger 100 away from the fixed structure 200, and the head of the fastener 230 is housed in the receiving groove 1131. By setting the head of the fastener 230 in the receiving groove 1131, the surface structure of the heat exchanger 100 can be optimized, thereby improving the installation effect and performance of the heat exchanger 10.

[0091] In this embodiment, the fastener 230 can be selected in various ways, such as using fastening elements with a clearly defined head structure, such as rivets and screws. Due to their structural characteristics, these fasteners can provide good connection strength while minimizing localized impact on the heat exchanger 100 during installation. Using fasteners with clearly defined heads helps to create a more stable fixing state during connection, increasing the overall strength and durability of the joint. Of course, when the fastener 230 uses fastening elements without a clearly defined head structure, such as pins, the end of the fastener 230 can also be considered a head, so that the head structure is accommodated within the receiving groove 1131.

[0092] By positioning the head of the fastener 230 within the receiving groove 1131, the surface of the heat exchanger 100 away from the fixed structure 200 is ensured to be flat. This arrangement not only improves the aesthetics of the heat exchanger 100 installation and avoids space waste caused by the protruding fastener 230, but also facilitates the fit between the heat exchanger 100 and external components, resulting in a more compact assembly. For example, when the heat exchanger 10 is used with the battery module, placing the fastener 230 in the receiving groove 1131 effectively ensures the consistency and flatness of the contact surfaces between the heat exchanger 100 and the battery module, thereby optimizing the efficiency of heat conduction and energy exchange and improving the overall system performance.

[0093] Furthermore, placing the fastener 230 within the receiving groove 1131 prevents the head of the fastener 230 from being exposed. This design effectively reduces the risk of external friction or impact, helping to maintain the durability and stability of the connection. Simultaneously, the connection strength of the fastener 230 is effectively guaranteed, preventing loosening or failure due to external forces. This concealed design also enhances the safety and reliability of the entire fixed structure 200 during use, reducing potential malfunctions caused by damage to the fastener 230. In one embodiment, the heat exchanger 100 has a protrusion 113 that protrudes outward from the side of the heat exchanger 100 facing the fixed structure 200 to form the receiving groove 1131. The support member 210 is fixedly connected to the protrusion 113 via the fastener 230. This design not only improves the reliability of the connection but also optimizes the overall structure of the heat exchanger 100.

[0094] In this embodiment, the protrusion 113 can be formed by stamping or other manufacturing processes. Through such a process, the surface of the heat exchanger 100 away from the fixed structure 200 can be protruded in the direction of the fixed structure 200 to form the protrusion 113, and a receiving groove 1131 is generated on the other side of the protrusion direction of the protrusion 113.

[0095] Specifically, the protrusion 113 is preferably formed on the surface of the heat spreader 110, and the receiving groove 1131 is also provided on the heat spreader 110. This design scheme ensures that the overall structure of the heat spreader 110 is compact, while enabling the heat spreader 110 to be effectively connected to the support member 210 through the protrusion 113.

[0096] The present invention also provides a battery pack 1, which includes a heat exchanger 10 and a power distribution assembly 20 as described in any of the above embodiments; the power distribution assembly 20 is connected to a fixing structure 200 of the heat exchanger 10.

[0097] In this embodiment, the heat exchanger 10 effectively solves the problems of difficult installation and complex structure between the power distribution component 20 and the heat exchanger 10 in traditional designs by setting a fixing structure 200 between the heat exchanger 100 and the power distribution component 20. This design, through optimized coordination, allows the power distribution component 20 to connect with the heat exchanger 10 more smoothly and reliably, thereby not only improving heat exchange efficiency but also ensuring that the power distribution component 20 is always maintained within a suitable operating temperature range inside the battery pack 1. This is of great significance for improving the overall safety and stability of the battery pack 1. At the same time, the simple structure of the heat exchanger 10 provides greater convenience for disassembling and assembling the power distribution component 20, reducing the operational difficulty during maintenance and replacement.

[0098] The design of the fixed structure 200 and the heat exchanger 100 in this embodiment significantly reduces the installation difficulty of the power distribution assembly 20, which effectively improves the integration of the combined structure of the heat exchanger 10 and the power distribution assembly 20. This simple structural design not only reduces the complexity of installation and maintenance but also achieves convenient disassembly and assembly, adapting to the optimized layout requirements of the battery pack 1 in a limited space. This design effectively solves the problems of installation difficulty and high maintenance costs caused by multiple cooling elements in the prior art, thereby further improving the practicality of the battery pack 1.

[0099] Furthermore, by optimizing the structure of the heat exchanger 10, the heat exchanger 10 in this embodiment can facilitate the installation and layout of the power distribution assembly 20 while maintaining a compact overall structure. The power distribution assembly 20 and the battery assembly can share the heat exchanger 10, forming a tighter coupling relationship and avoiding overheating caused by heat accumulation, thereby enhancing the thermal management capability of the battery pack 1. This design not only improves the integration of the battery pack 1, making its structure simpler, but also ensures that the overall structure of the battery pack 1 is compact and can maintain good thermal balance and heat dissipation during operation.

[0100] When battery pack 1 is applied in new energy vehicles, its design offers high flexibility and adaptability, allowing it to be effectively integrated with the vehicle structure. Battery pack 1 can be placed under the passenger compartment, utilizing space efficiently without occupying other interior space, while also raising the vehicle's center of gravity, thus improving stability and handling. When adopting a CTB (Cell-to-Body) structure, the regularity of its shape and integrated design allow battery pack 1 to not only serve as a battery storage device for electric passenger vehicles but also fully leverage the role of the vehicle's chassis. This design concept enables the battery modules to be arranged as many times as possible horizontally, thereby increasing the overall energy density of battery pack 1 and effectively utilizing available space.

[0101] Specifically, the effective coordination between the power distribution component 20 and the heat exchanger 100 with the battery assembly 30 not only optimizes the spatial layout of the battery pack 1 but also reduces its vertical dimensions to a certain extent. This design concept is based on the following principle: by integrating the power distribution component 20 into the structure of the heat exchanger 100, the overall height of the assembly can be compressed while ensuring the functionality of the battery pack 1. For example, by adopting a compact connection design, such as combining smaller fasteners or simplifying the connection structure, the height difference between components can be further reduced.

[0102] This height reduction design offers significant technical benefits, enhancing the overall design flexibility and aesthetics of electric passenger vehicles, resulting in a more streamlined appearance, reduced wind resistance, and improved overall vehicle energy efficiency. Simultaneously, lowering the vertical dimensions also helps lower the vehicle's center of gravity, optimizing driving stability and enhancing the driving experience.

[0103] In practical applications, this design has great development potential. It can be adjusted according to different vehicle models, and the layout of the power distribution component 20 and heat exchanger 100 can be flexibly changed according to the size requirements of the battery pack 1. For example, the power distribution component 20 can be designed as a planar form or a thin structure to adapt to different installation space requirements, thereby enhancing the compatibility and application flexibility of the battery pack 1. This design not only helps to improve the integration of the battery pack but also reduces production and maintenance costs to a certain extent, providing strong support for the development of the electric passenger vehicle industry.

[0104] Specifically, the battery pack 1 also includes a battery assembly 30, which and the power distribution assembly 20 are respectively located on opposite sides of the heat exchanger 100. This design results in a more compact layout and achieves efficient simultaneous heat exchange by combining the heat exchanger 100 with the battery assembly 30 and the power distribution assembly 20.

[0105] Specifically, the rationale behind this layout lies in the fact that the heat exchanger 100 effectively enhances the heat exchange between the battery assembly 30 and the power distribution assembly 20, thereby achieving rapid heat transfer and uniform distribution. The presence of the heat exchanger 100 minimizes heat loss caused by the thermal resistance between the battery assembly 30 and the power distribution assembly 20, further improving the overall heat exchange efficiency. This design ensures that the battery assembly 30 remains within a suitable operating temperature range during the operation of the battery pack 1, preventing excessively high or low temperatures from affecting battery performance and lifespan.

[0106] Furthermore, since the battery assembly 30 and the power distribution assembly 20 are positioned on opposite sides of the heat exchanger 100, the battery pack 1 can flexibly adjust the intensity of heat exchange according to actual needs as the ambient temperature changes. For example, under high load conditions, the battery assembly 30 may generate more heat, and the heat exchanger 100 can quickly conduct away the excess heat through effective heat exchange with the power distribution assembly 20 to maintain the temperature stability of the entire system. Conversely, under low load conditions, the heat exchanger 100 can also maintain the operating temperature of the battery assembly 30 through heat exchange with the power distribution assembly 20, effectively preventing overheating and overcooling.

[0107] Due to the compact arrangement of the battery pack 30, power distribution assembly 20, and heat exchanger 100, the overall structure of the battery pack 1 becomes simpler. This layout not only saves internal space but also facilitates the integration and production of the overall system. The heat exchanger 100 can be designed using lightweight materials, thereby reducing the overall vehicle weight and improving energy efficiency.

[0108] In one embodiment, the battery pack 1 further includes a housing 50, which covers the heat exchanger 10 and can be sealed to the heat exchanger 10. The power distribution assembly 20 is disposed inside the housing 50. By setting the housing 50 to effectively cooperate with the heat exchanger 10, comprehensive protection can be provided for the heat exchanger 100 and the power distribution assembly 20.

[0109] First, the design principle of the casing 50 is to provide a physical barrier for the heat exchanger 10 and its internal components, preventing the influence of external environmental factors such as dust, moisture, and other potential contaminants, thereby maintaining the normal operation and long lifespan of the internal components. The advantage of a sealed connection is that it effectively isolates external interference while ensuring the thermal management efficiency of the internal components, which is crucial for the overall performance of the battery pack 1. Since the battery generates heat during operation, and proper thermal management can not only improve heat exchange efficiency but also prevent safety hazards caused by overheating, the sealing design of the casing 50 is particularly important.

[0110] In practical implementation, the material of the housing 50 can be selected from engineering plastics or metal alloys with excellent thermal insulation and corrosion resistance to ensure effective protection of internal components under various operating conditions. Simultaneously, to achieve a good fit with the heat exchanger 10, the structural design of the housing 50 needs to match the shape of the heat exchanger 10, forming a tight nesting. This design not only simplifies the assembly process but also improves the overall structural integration, ensuring optimized space utilization for the battery pack 1. Furthermore, the power distribution assembly 20 is located inside the housing 50, which effectively improves installation stability and facilitates better electrical connections and signal processing.

[0111] Specifically, the power distribution assembly 20 includes a distribution box 201 and high and low voltage panels 202. The distribution box 201 is connected to the high and low voltage panels 202 and the fixed structure 200, and dissipates heat through the heat exchanger 100. The design of this power distribution assembly takes into account the overall heat dissipation requirements of the battery pack 1 to ensure the safe and efficient operation of the battery system under high load.

[0112] In this embodiment, the heat exchanger 100 plays a crucial role in thermal management, effectively removing excess heat generated by the battery pack 1 and its power distribution components 20 during operation, thereby stabilizing the system's operating temperature. The tight fit between the connection structure of the power distribution box 201 and the high and low voltage panels 202 and the fixing structure 200 further enhances the mechanical strength and shock resistance of the components, ensuring that the impact of various vibrations on internal components during vehicle operation is minimized.

[0113] In this embodiment, the high and low voltage panels 202 can be designed to extend from the surface of the housing 50. This design greatly facilitates the connection between the high and low voltage panels 202 and external circuits. This structural design provides a more flexible wiring scheme, enabling the battery pack 1 to efficiently interface with other electrical systems (such as charging systems, drive motors, etc.). At the same time, the extended design of the high and low voltage panels 202 also facilitates daily maintenance and repair operations, improving overall convenience.

[0114] In specific implementations, the distribution box 201 can adopt a highly integrated circuit design, integrating multiple functional modules, such as protection circuits, monitoring circuits, and control signal processing, to achieve a higher level of intelligence. Furthermore, the high and low voltage panels 202 can be made of metals or composite materials with good thermal conductivity to ensure that when connected to external circuits, they not only have excellent electrical performance but also effectively transfer heat when heat dissipation is required.

[0115] Through this design, the power distribution component 20, while completing current distribution and control, also possesses excellent heat dissipation performance and easy connectivity, ensuring the safety and reliability of the battery pack 1. Especially in high-load application scenarios, this design provides strong support for the long lifespan and high efficiency of the battery pack 1, improving the overall performance and user experience of the electric passenger vehicle.

[0116] See Figure 2 As shown, in a preferred embodiment, the battery assembly and the power distribution assembly 20 are respectively located on opposite sides of the heat exchanger 10. The core idea of ​​this design is to achieve a compact overall structure for the battery pack 1 by stacking the battery assembly, heat exchanger 10, and power distribution assembly 20 in sequence, while significantly improving its space utilization.

[0117] This stacked structure effectively reduces the space occupied during installation and layout, resulting in a simpler overall design and facilitating efficient integration within limited space. This advantage is particularly important in the design of electric vehicles and other applications, as the optimization and efficient use of space in the chassis or body of an electric vehicle directly affects the vehicle's performance and range.

[0118] In this embodiment, since the battery assembly and the power distribution assembly 20 are respectively located on opposite sides of the heat exchanger 10, this arrangement effectively avoids thermal interference between them. The battery assembly generates heat during charging and discharging. If it is too close to the power distribution assembly 20, the operating temperature of the power distribution assembly may rise, affecting its performance and reliability. Furthermore, a high-temperature environment may damage the electronic components of the power distribution assembly, or even cause malfunctions. By arranging these two components on opposite sides of the heat exchanger, the thermal management function of the heat exchanger 10 can be effectively utilized, enabling it to dissipate heat, effectively reducing the temperature of the battery assembly and improving the operating environment of the power distribution assembly.

[0119] Specifically, the battery pack includes multiple battery modules arranged sequentially along a first direction, while the power distribution assembly 20, heat exchanger 10, and at least one of the battery modules are arranged sequentially along a second direction, with the first and second directions forming an angle. The design principle of this arrangement is mainly to improve the overall energy density of the battery pack 1 and optimize space utilization efficiency.

[0120] Specifically, the first direction can be the X direction in the diagram, and the second direction can be the Y direction. In this case, the X and Y directions can be perpendicular, with the X direction representing the length of battery pack 1 and the Y direction representing the thickness of battery pack 1. Furthermore, the angle between the X and Y directions is not unique; the specific angle can be adjusted according to the actual structure and design requirements of battery pack 1, and is not limited to a single angle here.

[0121] In terms of design layout, the horizontal arrangement of multiple battery modules increases the energy density of battery pack 1, while the power distribution component 20 is positioned above the heat exchanger 10, ensuring that it does not occupy horizontal space. This design makes full use of the vertical space of battery pack 1, enabling the power distribution component 20 to work efficiently, thereby achieving its cooling effect and preventing performance degradation or damage due to overheating under high load conditions.

[0122] It is particularly important to note that the placement of the power distribution component 20 does not occupy space in the first direction of the battery pack 1. This feature ensures that the layout of the power distribution component does not result in wasted space in the structural design of the battery pack 1, contributing to a more compact and efficient battery pack structure. By rationally arranging the power distribution component 20, heat exchanger 10, and battery modules in the thickness direction, the thickness space of the battery pack 1 can be fully utilized. This avoids the problems of increased weight and inconvenience in vehicle layout caused by an excessively large battery pack, thereby improving the overall performance and reliability of the battery pack.

[0123] In addition, the number of battery modules can be one, two, or more. By reasonably increasing the number of battery modules, the total energy output of the battery pack can be increased without sacrificing space utilization. Depending on actual needs, different types and capacities of battery modules can be selected during the design process. This flexibility can further optimize the energy storage and release of the battery pack, thereby improving the driving range of electric vehicles.

[0124] See Figure 3 As shown, in one embodiment, the housing of the power distribution assembly 20 is provided with a connecting flange 2011. The connecting flange 2011 is spaced apart from the heat exchanger 100, and the power distribution assembly 20 is connected to the fixed structure 200 through the connecting flange 2011. This design can effectively ensure that after the power distribution assembly 20 is connected to the fixed structure 200, its bottom surface is as close as possible to the heat exchanger 100, thereby significantly improving the heat dissipation effect of the power distribution assembly 20. At the same time, it can also make the combined structure of the power distribution assembly 20 and the heat exchanger 10 compact.

[0125] In practice, the connecting flange 2011 and the power distribution assembly 20 can be installed separately. This provides greater flexibility for the connecting flange 2011, allowing for assembly via detachable connection methods such as plugging, bonding, or snap-fit. When the connecting flange 2011 is damaged or ages during use, it can be quickly replaced without disassembling the entire power distribution assembly 20. This significantly improves system maintenance convenience, shortens repair time, and reduces maintenance costs.

[0126] Furthermore, depending on design requirements, the connecting flange 2011 can also be integrally molded with the housing of the power distribution component 20. This integral molding design can significantly improve the connection strength of the connecting flange 2011, enhance the overall rigidity and stability of the system, and effectively prevent structural failure caused by stress concentration at the joint, especially in high-load or severe vibration working environments.

[0127] It is worth noting that the connecting flange 2011 can have through holes on its surface, and the design of the through holes can correspond to the fixing structure 200. This facilitates subsequent installation work. During connection and fixing, fastening elements such as screws and pins can be used to fix the fixing structure 200 and the connecting flange 2011. This method is not only reliable but also facilitates disassembly and maintenance, further improving the maintainability and adaptability of the system.

[0128] The preferred structure of the connecting flange 2011 is a plate-like design. This structure aims to achieve a compact overall structure after the connecting flange 2011 and the fixing structure 200 are combined, thereby significantly reducing the overall system size and weight while ensuring strength. Optimized structural design allows the equipment to adapt more flexibly to different installation environments and space constraints during use, improving the overall integration and functionality of the battery pack 1 system.

[0129] Furthermore, the housing of the power distribution component 20 is provided with a receiving cavity 2012, the connecting flange 2011 is at least partially located in the receiving cavity 2012, and the fixing structure 200 is at least partially housed in the receiving cavity 2012.

[0130] First, by using the receiving cavity 2012 provided on the power distribution component 20 in conjunction with the fixing structure 200, not only can the overall structure after the two are combined be more compact and space utilization efficiency improved, but the external size of the entire battery pack 1 can also be effectively reduced, thus facilitating integration in a limited space.

[0131] Furthermore, the design of the receiving cavity 2012 also facilitates the positioning of the fixing structure 200. Since the fixing structure 200 is at least partially housed within the receiving cavity 2012, the cavity effectively prevents the fixing structure 200 from shifting position during the connection process, ensuring its stability at the connection point. This positioning effect not only enhances the strength of the connection and reduces the risk of loosening or detachment due to external forces, but also provides convenience for subsequent production assembly and maintenance.

[0132] In a preferred embodiment, the receiving cavity 2012 is intentionally recessed on the inner side of the outer surface of the power distribution assembly 20. This design effectively prevents the fixing structure 200 from protruding from the outer surface of the power distribution assembly 20, thereby achieving a tight connection between the power distribution assembly 20 and the fixing structure 200, ensuring that the entire device appears smoother and more integrated. This recessed structure does not cause any protruding parts to affect the appearance of the device or cause potential collision problems.

[0133] In one embodiment, the battery assembly 30 includes a plurality of battery modules arranged sequentially along a first direction, and the power distribution assembly 20, the heat exchanger 100, and at least one battery module are arranged sequentially along a second direction, the first and second directions intersecting; the heat exchanger 100 includes a plurality of receiving portions 130, and the battery pack is disposed in the receiving portions 130. This design effectively optimizes the spatial structure and overall layout of the battery pack 1.

[0134] By arranging the battery modules along the length direction (i.e., the first direction) of the battery pack 1, the longitudinal space of the battery pack can be fully utilized, thereby freeing up more space in the overall structure of the battery pack 1 to support the arrangement of the power distribution components 20 and the heat exchange components 100. This arrangement allows the power distribution components 20 serving each battery module to be distributed relatively evenly in the thickness direction of the system (i.e., the second direction), thereby reducing performance loss caused by space resource constraints.

[0135] The heat exchanger 100 includes multiple housings 130 in which battery modules are housed. The housings 130 effectively provide the necessary mechanical support and thermal management for the battery modules. The design of each housing 130 ensures good heat dissipation during operation, while preventing overheating from affecting battery life and performance. By scientifically designing the geometry and number of housings 130, the temperature distribution of the battery modules can be more effectively balanced, ensuring that each module operates within its optimal temperature range.

[0136] The configuration of the battery pack 30 allows for an orderly arrangement of battery modules along the longitudinal length of the battery pack 1, while the power distribution components 20 and heat exchange components 100 can be freely arranged along the thickness of the battery pack. This design approach avoids, to some extent, dimensional accumulation in a particular direction, improving the overall structural compactness of the battery pack 1. This compactness not only helps improve the space efficiency of the battery pack 1 during use but also enhances its adaptability for installation inside vehicles or equipment, reducing overall weight.

[0137] See Figure 2 and Figure 3 As shown, in one embodiment, the heat exchange plate 110 includes at least two sidewalls, wherein two adjacent sidewalls are arranged at an included angle, and a plurality of connected sidewalls enclose a receiving portion 130 to enclose at least one side of the battery assembly. This design, by precisely controlling the shape and structure of the heat exchange plate 110, significantly improves the heat exchange effect while increasing the contact area with the battery assembly.

[0138] The heat spreader 110, through bending the material, creates an angled configuration between adjacent sidewalls. This design allows the sidewalls to fit against at least one side of the battery module when mated, resulting in more efficient heat conduction. The improved contact surface not only enhances heat transfer efficiency but also effectively reduces heat buildup during high-load operation of the battery module, preventing performance degradation due to overheating. This angled design also facilitates integration and optimization of the overall structure, allowing the heat exchanger 100 to better integrate into the battery pack's spatial layout, achieving optimal heat dissipation within limited space.

[0139] In practical implementation, the number of sidewalls of the heat exchanger 110 can be set to two, three, or more, depending on the design of the battery assembly and the areas requiring heat dissipation. Specifically, the design with multiple sidewalls can enhance the encapsulation effect of the heat exchanger 100, provide a more complete heat exchange network, and improve overall heat dissipation efficiency. This design concept is not limited to the application of a single structure, but can also be applied to battery systems of different forms and sizes.

[0140] In one embodiment, the battery pack 1 further includes a heat exchange plate 40, and the battery assembly 30 includes a first battery assembly 301 and a second battery assembly 302. The power distribution assembly 20, the heat exchanger 100, the first battery assembly 301, the heat exchange plate 40 and the second battery assembly 302 are stacked sequentially.

[0141] By further incorporating a heat exchange plate 40 within the battery pack 1, the contact area between the heat exchange plate 40 and the first battery assembly 301 and the second battery assembly 302 is increased, effectively improving heat exchange efficiency. This is because the heat exchange plate 40 acts as a more thermally conductive intermediary, significantly increasing the heat conduction path between the battery module and the heat exchange component 100, promoting rapid heat conduction and uniform distribution. This design significantly improves the overall heat dissipation effect of the battery pack 1, preventing overheating of the battery components and thus increasing the cycle life and energy density of the battery module.

[0142] The heat exchange plate 40 can be made of a high thermal conductivity metal, such as aluminum or copper, which possesses excellent thermal conductivity, thus improving its thermal conductivity performance. Furthermore, the layout and shape of the heat exchange plate 40 can be optimized according to the specifications and installation method of the battery module. For example, the surface of the heat exchange plate 40 can be designed with a porous structure to increase the contact area with air, thereby improving the air convection heat dissipation effect. This heat dissipation enhancement method achieved through optimized surface structure can further improve the heat dissipation capacity of the battery pack 1.

[0143] The layout design of the heat exchange plate 40 allows for more effective heat exchange between the various heat sources in the battery pack 1—the first battery module 301 and the second battery module 302—and the heat exchanger 100. This improvement, while maintaining a compact overall structure, also provides crucial support for efficient heat dissipation in the battery pack 1, resulting in a longer service life and better performance. This design approach not only reduces system complexity but also improves efficiency, enhancing the reliability and stability of the entire battery pack in high-power applications. It possesses significant application value and market potential for fields requiring high-performance thermal management, such as electric vehicles and energy storage systems.

[0144] Specifically, the bent structure of the heat exchanger 100 not only effectively increases the contact area with the battery module but also reduces the battery module's temperature by improving the heat conduction path, ensuring excellent heat dissipation performance under normal operating conditions. Especially under high-load operation, reducing the battery module's temperature effectively improves battery safety and lifespan, while also enhancing overall energy efficiency. Furthermore, this three-dimensional design allows the heat exchanger 100 to flexibly adapt to different battery module configurations, further enhancing its adaptability.

[0145] Of course, the bending structure formed on the heat exchanger 100 can also accommodate external structures such as the vehicle frame, making the combined structure of the battery pack 1 with external components more compact during application. This design facilitates the integration of the overall system, reduces external space occupation, and increases stability, resulting in better structural strength and durability of the battery pack in practical applications. Through clever space utilization, not only is the efficiency of available space improved, but convenient conditions are also provided for equipment maintenance and replacement.

[0146] In one embodiment, the first battery assembly 301 includes not only a plurality of first battery modules 3011, but also a battery bracket 3012. The battery bracket 3012 has internally formed spaces to accommodate the first battery modules 3011, thus forming a structurally stable and effectively protected support system. Simultaneously, a heat exchanger 100 is connected to the battery bracket 3012. This connection not only provides necessary support to ensure the stability of the battery modules during operation, but also enables effective heat conduction between the battery bracket 3012 and the heat exchanger 100, helping to quickly dissipate excess heat during battery operation.

[0147] The second battery assembly 302 also includes a tray 3022, which is connected to the battery bracket 3012 to accommodate at least one second battery module 3021. Through this design, the first battery assembly 301 and the second battery assembly 302 can be stacked sequentially, resulting in a more compact overall configuration of the battery pack 1. Specifically, the stacked layout reduces the space occupied by the overall structure to a certain extent, enhancing the system's space utilization and improving the device's portability and installation flexibility.

[0148] The battery bracket 3012 is designed to effectively protect the first battery module 3011 from external impacts or compression, and also improves the reliability of the battery system in extreme environments such as high temperature and humidity. This design ensures that the battery module meets performance requirements while maintaining long-term stable operation, thereby extending battery life. Similarly, the tray 3022 provides necessary protection for the second battery module 3021, further enhancing the durability and safety of the battery module in different application scenarios.

[0149] In this embodiment, the battery bracket 3012 and tray 3022 not only support and protect the first battery module 3011 and the second battery module 3021, but also integrate a cooling plate to achieve double-sided cooling of the battery modules. This design concept fully considers the thermal management requirements of the battery modules under high load or high temperature environments, ensuring that the batteries maintain a low temperature during operation.

[0150] By integrating cooling plates into the battery bracket 3012 and tray 3022, a double-sided cooling effect for the battery module can be achieved. This structural design allows the coolant to circulate inside the cooling plates, efficiently exchanging heat with the surface of the battery module, carrying away excess heat generated by the battery module, thereby effectively reducing its temperature and improving overall heat dissipation. Specifically, this double-sided cooling implementation not only improves cooling efficiency but also promotes stable operation of the battery module over a wider temperature range. Therefore, the battery pack 1 can be maintained within a reasonable temperature range during use, thereby improving its service life and safety.

[0151] Furthermore, the power distribution component 20 and other related components can be positioned above the heat exchanger 100, utilizing the heat exchanger's thermal conductivity to achieve timely cooling of these components. This structural arrangement allows the battery pack 1 to fully utilize vertical space, avoiding the space waste or structural complexity issues caused by poor heat dissipation in traditional designs. Specifically, the power distribution component 20 may affect the overall performance of the battery module under high temperatures. Through reasonable layout and cooling measures, these components can benefit from the good heat dissipation efficiency of the heat exchanger 100, thereby ensuring the overall operational safety and stable performance of the battery pack system.

[0152] This utility model also provides an electrical device, which includes the battery pack 1 in any of the above embodiments.

[0153] In this implementation, the heat exchanger 10 effectively solves the problems of difficult installation and complex structure between the power distribution component 20 and the heat exchanger 10 in traditional designs by setting a fixing structure 200 between the heat exchanger 100 and the power distribution component 20. The optimized fit design allows the power distribution component 20 to be combined with the heat exchanger 10 more stably and reliably, significantly improving heat exchange efficiency. More importantly, this design ensures that the power distribution component 20 is always maintained within a suitable operating temperature range inside the battery pack 1, thereby improving the overall safety and stability of the battery pack 1.

[0154] The coordinated design of the fixed structure 200 and the heat exchanger 100 significantly reduces the installation difficulty of the power distribution assembly 20, thereby effectively improving the integration of the combined structure of the heat exchanger 10 and the power distribution assembly 20. The simplified structural design not only reduces the complexity of installation and maintenance but also greatly enhances the ease of disassembly and assembly, adapting to the optimized layout requirements of the battery pack 1 within a limited space. This design effectively solves the problems of installation difficulty and high maintenance costs caused by multiple cooling elements in existing technologies, thereby further improving the practicality of the battery pack 1.

[0155] Furthermore, by optimizing the structure of the heat exchanger 10, this embodiment maintains a compact overall structure while facilitating the installation and layout of the power distribution assembly 20. The power distribution assembly 20 and the battery assembly can share the heat exchanger 10, forming a tighter coupling relationship. This design effectively prevents overheating caused by heat accumulation, further enhancing the thermal management capability of the battery pack 1. This innovative design not only improves the integration of the battery pack 1, simplifying its structure, but also ensures the compactness of the electrical equipment, maintaining good thermal balance and heat dissipation.

[0156] Specifically, electrical equipment can be applied to various scenarios, including but not limited to new energy vehicles, ferries, aircraft, energy storage devices, and computers. These electrical devices typically have high requirements for the safety, reliability, and heat dissipation performance of the battery pack. Therefore, the design of the battery pack 1 and its corresponding fixing structure 200 and heat exchanger 10 described in this embodiment precisely meets these requirements. The battery pack 1 can provide stable and reliable energy output during long-distance driving, while effectively preventing adverse effects on battery performance caused by high temperatures. At the same time, the lightweight and compact design allows the battery pack 1 to provide good range and service life without increasing weight.

[0157] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0158] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0159] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0160] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0161] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A heat exchanger (10), characterized in that, include: The heat exchanger (100) has at least one heat exchange surface (121); as well as A fixed structure (200) is connected to the heat exchanger (100) and extends in a direction away from the heat exchanger (100), and one end of the fixed structure (200) away from the heat exchanger (100) is used to install an external power distribution assembly (20), and the heat exchange surface (121) is used to exchange heat with the power distribution assembly (20).

2. The heat exchanger (10) according to claim 1, characterized in that, The heat exchanger (100) includes a heat exchange plate (110), the heat exchange surface (121) is disposed on the heat exchange plate (110), and the fixing structure (200) is connected to the heat exchange plate (110).

3. The heat exchanger (10) according to claim 1, characterized in that, The heat exchanger (100) includes a flow channel (120), the heat exchange surface (121) is disposed on the flow channel (120), the flow channel (120) is used to flow the heat exchange medium, and the fixing structure (200) is connected to the flow channel (120).

4. The heat exchanger (10) according to claim 3, characterized in that, The heat exchanger (100) further includes a heat spreader plate (110), the flow channel component (120) is connected to the heat spreader plate (110), and the fixing structure (200) is connected to the heat spreader plate (110).

5. The heat exchanger (10) according to claim 4, characterized in that, The number of flow channel components (120) is multiple, and the multiple flow channel components (120) are all connected to the heat exchange plate (110) and are spaced apart; and / or the number of fixing structures (200) is multiple, and the multiple fixing structures (200) are all connected to the heat exchange plate (110) and are spaced apart.

6. The heat exchanger (10) according to claim 3, characterized in that, The flow channel component (120) is spaced apart from the fixed structure (200).

7. The heat exchanger (10) according to any one of claims 1-6, characterized in that, The fixed structure (200) includes a support (210), a connector (220), and a fastener (230). The support (210) is connected to the heat exchanger (100) via the fastener (230). The connector (220) is connected to the end of the support (210) away from the heat exchanger (100). The connector (220) is used to connect the power distribution assembly (20).

8. The heat exchanger (10) according to claim 7, characterized in that, The support member (210) has a mounting hole (2111), and the connector (220) is at least partially accommodated in the mounting hole (2111).

9. The heat exchanger (10) according to claim 8, characterized in that, The support member (210) is also provided with a positioning flange (2112), which protrudes into the mounting hole (2111), and the connector (220) is connected to the support member (210) through the positioning flange (2112).

10. The heat exchanger (10) according to claim 7, characterized in that, The heat exchanger (100) has a first connection hole (112); the support member (210) includes a support portion (211) and an extension portion (212) connected to each other, the extension portion (212) is connected to the circumference of the support portion (211), the extension portion (212) has a second connection hole (2121), the connector (220) is connected to the end of the support portion (211) away from the extension portion (212), and the fastener (230) passes through the first connection hole (112) and the second connection hole (2121) to fix the extension portion (212) and the heat exchanger (100).

11. The heat exchanger (10) according to claim 7, characterized in that, The heat exchanger (100) has a receiving groove (1131) on the side away from the fixed structure (200), and the head of the fastener (230) is accommodated in the receiving groove (1131).

12. The heat exchanger (10) according to claim 11, characterized in that, The heat exchanger (100) is provided with a protrusion (113), which protrudes outward from the side of the heat exchanger (100) toward the fixing structure (200) to form the receiving groove (1131), and the support member (210) is fixedly connected to the protrusion (113) by the fastener (230).

13. A battery pack (1), characterized in that, include: The heat exchanger (10) as described in any one of claims 1-12; as well as The power distribution assembly (20) is connected to the fixed structure (200) of the heat exchanger (10).

14. The battery pack (1) according to claim 13, characterized in that, The battery pack (1) also includes a battery assembly (30), and the battery assembly (30) and the power distribution assembly (20) are respectively disposed on opposite sides of the heat exchanger (100).

15. The battery pack (1) according to claim 14, characterized in that, The heat exchanger (100) includes a heat spreader (110) and a flow channel (120). The flow channel (120) is connected to the heat spreader (110). The heat exchange surface (121) is disposed on the flow channel (120). The fixing structure (200) is connected to the heat spreader (110). The flow channel (120) is used to circulate the heat exchange medium. The battery assembly (30) is connected to the side of the heat spreader (110) away from the flow channel (120).

16. The battery pack (1) according to claim 13, characterized in that, The outer casing of the power distribution assembly (20) is provided with a connecting flange (2011), which is spaced apart from the heat exchanger (100), and the power distribution assembly (20) is connected to the fixed structure (200) through the connecting flange (2011).

17. The battery pack (1) according to claim 16, characterized in that, The housing of the power distribution assembly (20) is further provided with a receiving cavity (2012), the connecting flange (2011) is at least partially located in the receiving cavity (2012), and the fixing structure (200) is at least partially housed in the receiving cavity (2012).

18. The battery pack (1) according to claim 14, characterized in that, The battery assembly (30) includes a plurality of battery modules arranged sequentially along a first direction, and the power distribution assembly (20), the heat exchanger (100) and at least one of the battery modules are arranged sequentially along a second direction, wherein the first direction and the second direction intersect; the heat exchanger (100) includes a plurality of receiving portions (130), and the battery modules are disposed in the receiving portions (130).

19. The battery pack (1) according to claim 14, characterized in that, The battery pack (1) further includes a heat exchange plate (40), and the battery assembly (30) includes a first battery assembly (301) and a second battery assembly (302). The power distribution assembly (20), the heat exchanger (100), the first battery assembly (301), the heat exchange plate (40) and the second battery assembly (302) are stacked in sequence.

20. An electrical appliance, characterized in that, Includes the battery pack (1) as described in any one of claims 13-19.

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