An electrical device, a battery pack, and an electrical apparatus

Abstract

The application discloses an electrical device, a battery pack and a power utilization equipment, and relates to the technical field of batteries; the electrical device comprises a plurality of electrical components and a first heat exchange element; the first heat exchange element has a first heat exchange region and a second heat exchange region; part of the plurality of electrical components is arranged in the first heat exchange region; and part of the plurality of electrical components is arranged in the second heat exchange region; so that the electrical components can be arranged in the appropriate heat exchange region according to actual requirements, the different heat exchange regions of the first heat exchange element can be reasonably utilized and used efficiently, and the heat exchange capacity of the first heat exchange element is improved.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to an electrical device, a battery pack, and an electrical appliance. Background Technology

[0002] With the increasing popularity of new energy vehicles, these vehicles are increasingly seeking greater driving range, faster charging efficiency, and higher charging power.

[0003] This places higher demands on the heat dissipation of the power battery and the power distribution assembly within the battery pack.

[0004] In related technologies, the electrical assembly of a battery pack typically integrates multiple electrical components. In order to improve the space utilization of the battery pack, the integration of multiple electrical components in the electrical assembly is relatively high, resulting in a lower heat exchange capacity of the heat exchange plate. Utility Model Content

[0005] This application aims to provide an electrical device, battery pack, and electrical equipment that can solve the problem in related technologies where, in order to improve the space utilization of the battery pack, the integration of multiple electrical components in the electrical assembly is relatively high, resulting in a low heat exchange capacity of the heat exchange plate.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] In a first aspect, embodiments of this application propose an electrical device, comprising: a plurality of electrical components and a first heat exchanger, the first heat exchanger having a first heat exchange region and a second heat exchange region, a portion of the plurality of electrical components being disposed in the first heat exchange region, and a portion of the plurality of electrical components being disposed in the second heat exchange region.

[0008] Optionally, the plurality of electrical components include a first electrical component and a second electrical component, wherein the heat generation of the first electrical component is greater than that of the second electrical component, the first electrical component is disposed in the first heat exchange region, the second electrical component is disposed in the second heat exchange region, and both the first heat exchange region and the second heat exchange region are provided with flow channels for the flow of heat exchange medium, wherein the heat exchange medium is capable of exchanging heat with the first electrical component and the second electrical component;

[0009] in:

[0010] The temperature of the heat exchange medium in the flow channel of the first heat exchange region is lower than the temperature of the heat exchange medium in the flow channel of the second heat exchange region.

[0011] Alternatively, the heat exchange area of ​​the flow channel in the first heat exchange region is greater than the heat exchange area of ​​the flow channel in the second heat exchange region.

[0012] Alternatively, the first electrical component may include at least one of a power control module and a motor control module, and the second electrical component may include at least one of a battery and a power distribution module.

[0013] Optionally, the plurality of electrical components include a third electrical component and a fourth electrical component, wherein the heat generation of the third electrical component is less than that of the fourth electrical component, the third electrical component is disposed in the first heat exchange region, and the fourth electrical component is disposed in the second heat exchange region. Both the first heat exchange region and the second heat exchange region are provided with flow channels for the flow of heat exchange medium, and the heat exchange medium is capable of exchanging heat with the third electrical component and the fourth electrical component.

[0014] The temperature of the heat exchange medium in at least a portion of the flow channels within the first heat exchange region is lower than the temperature of the heat exchange medium in at least a portion of the flow channels within the second heat exchange region.

[0015] Alternatively, the first heat exchange area may be close to the inlet, while the second heat exchange area may be far from the inlet.

[0016] Optionally, the third electrical component includes at least one of a battery and a power distribution module, and the fourth electrical component includes at least one of a power control module and a motor control module.

[0017] Optionally, the power control module includes at least one of a power supply unit, a power drive unit, and a power control unit, and the motor control module includes at least one of a drive unit, a capacitor unit, an electronically controlled drive unit, and an electronically controlled control unit.

[0018] Optionally, a first flow channel is provided in the first heat exchange region, and a second flow channel is provided in the second heat exchange region;

[0019] Alternatively, a first flow channel may be provided in the first heat exchange area, and a second flow channel and a portion of the first flow channel may be provided in the second heat exchange area.

[0020] Optionally, the first heat exchanger has a first surface on which a plurality of electrical components are disposed, and the first surface is at least partially recessed away from the electrical components to form a groove for mounting the electrical components.

[0021] Optionally, the electrical device further includes a connection assembly detachably connected to the first heat exchanger, the connection assembly being used to introduce and extract the heat exchange medium into and out of the first heat exchanger.

[0022] Optionally, the electrical device further includes a flow valve connected to the connection assembly, the flow valve being used to control the flow rate of the heat exchange medium flowing into the first heat exchanger.

[0023] Secondly, embodiments of this application provide a battery pack comprising: an electrical device as described in any of the preceding claims.

[0024] Optionally, the battery pack further includes a battery pack housing, which has a battery compartment and an electrical compartment, the battery compartment being adapted to install batteries and the electrical compartment being adapted to install the electrical device.

[0025] Optionally, the battery pack further includes a second heat exchanger, which is disposed inside the battery pack housing and is capable of exchanging heat with the battery.

[0026] Optionally, the heat exchange medium in the first heat exchanger and the second heat exchanger may be the same or different.

[0027] Thirdly, embodiments of this application provide an electrical device, including: an electrical device as described in any of the preceding claims; or a battery pack as described in any of the preceding claims.

[0028] In the embodiments of this application, the electrical device includes multiple electrical components and a first heat exchanger. The first heat exchanger has a first heat exchange area and a second heat exchange area. Some of the multiple electrical components are disposed in the first heat exchange area, and some of the multiple electrical components are disposed in the second heat exchange area. This allows the electrical components to be disposed in appropriate heat exchange areas according to actual needs, thereby making reasonable and efficient use of different heat exchange areas of the first heat exchanger and improving the heat exchange capacity of the first heat exchanger.

[0029] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is a schematic diagram of an electrical device according to an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of another electrical device according to an embodiment of this application;

[0033] Figure 3 According to the embodiments of this application Figure 1 A partial sectional view in the document;

[0034] Figure 4 According to the embodiments of this application Figure 2 Enlarged view of section A in the middle;

[0035] Figure 5 This is a top view of the first heat exchanger according to an embodiment of this application;

[0036] Figure 6 According to the embodiments of this application, along Figure 4 Sectional view of the middle BB line;

[0037] Figure 7 An isometric view of the first heat exchange plate according to an embodiment of this application;

[0038] Figure 8 This is a front view of the first heat exchange plate according to an embodiment of this application;

[0039] Figure 9 This is a schematic diagram of the manifold structure from one perspective according to an embodiment of this application;

[0040] Figure 10 This is a schematic diagram of the manifold structure from another perspective according to an embodiment of this application;

[0041] Figure 11 This is an exploded view of the connection component according to an embodiment of this application;

[0042] Figure 12 This is a schematic diagram of the structure of the first connector according to an embodiment of this application;

[0043] Figure 13 This is a schematic diagram of the power control module according to an embodiment of this application;

[0044] Figure 14 This is a schematic diagram of the structure of the motor control module according to an embodiment of this application;

[0045] Figure 15 This is a schematic diagram of a battery pack according to an embodiment of this application;

[0046] Figure 16 This is an exploded view of a battery pack according to an embodiment of this application.

[0047] Figure label:

[0048] 1: Electrical component; 11: First electrical component; 111: Power control module; 1111: Power unit; 1112: Power drive unit; 1113: Power control unit; 112: Motor control module; 1121: Drive unit; 1122: Capacitor unit; 1123: Electronic drive unit; 1124: Electronic control unit; 12: Second electrical component; 121: Battery; 122: Power distribution module; 13: Third electrical component; 14: Fourth electrical component;

[0049] 2: First heat exchanger;

[0050] 20: Flow channel; 20a: First inner wall; 20b: Second inner wall; 201: Turbulence structure; 202: First flow channel; 203: Second flow channel; 204: First sub-flow channel; 205: Second sub-flow channel; 206: Third sub-flow channel; 207: Fourth sub-flow channel; 208: Fifth sub-flow channel; 209: Sixth sub-flow channel; 2010: Seventh sub-flow channel; 2011: Eighth sub-flow channel; 2012: Ninth sub-flow channel; 2013: Tenth sub-flow channel;

[0051] 21: First heat exchange region; 22: Second heat exchange region; 23: First surface; 231: Groove; 2311: First groove; 2312: Second groove;

[0052] 24: First heat exchange plate; 24a: First end; 24b: Second end; 241: Liquid inlet channel; 242: Liquid outlet channel; 243: Mounting part; 244: Notch; 245: Second mounting groove; 246: Mounting hole; 247: Mounting column;

[0053] 25: Manifold; 251: First flow section; 252: Second flow section; 2521: First mounting groove; 253: First hole; 254: First positioning part; 255: First sealing block;

[0054] 3: Connecting assembly; 31: First connecting member; 311: Liquid inlet; 312: Liquid outlet; 313: Sealing part; 314: Second positioning part; 315: Second sealing block; 32: Second connecting member; 321: First channel; 322: Second channel; 323: Third positioning part;

[0055] 4: Battery pack housing; 41: Battery compartment; 42: Electrical compartment;

[0056] 5: Battery;

[0057] 6: Second heat exchanger; 61: Second heat exchange plate; 62: Third connecting component. Detailed Implementation

[0058] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0059] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0060] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] The electrical devices, battery packs, and power-consuming equipment provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0063] like Figure 1 As shown, an electrical device according to some embodiments of this application includes: a plurality of electrical components 1 and a first heat exchanger 2, the first heat exchanger 2 having a first heat exchange region 21 and a second heat exchange region 22, a portion of the plurality of electrical components 1 being disposed in the first heat exchange region 21, and a portion of the plurality of electrical components 1 being disposed in the second heat exchange region 22.

[0064] In this embodiment of the application, the electrical component 1 can be set in a suitable heat exchange area according to actual needs, so as to make reasonable and efficient use of different heat exchange areas of the first heat exchanger 2, thereby improving the heat exchange capacity of the first heat exchanger.

[0065] In specific applications, electrical component 1 is suitable for electrical connection with battery 5, at least for controlling the operation of battery 5; multiple electrical components 1 are provided, specifically any one of a high-integrated battery controller (HBC), battery management system, power module, relay, fuse, etc. Due to the high integration of electrical component 1 and the limited heat exchange space, multiple electrical components 1 need to be installed according to different heat exchange areas on the first heat exchanger 2, so as to make reasonable use of the limited space and improve the heat exchange capacity of the first heat exchanger 2.

[0066] It should be noted that the first heat exchange region 21 and the second heat exchange region 22 can specifically be regions with different heat exchange capacities. The heat exchange capacity of the first heat exchange region 21 is greater than that of the second heat exchange region 22; or the heat exchange capacity of the first heat exchange region 21 is less than that of the second heat exchange region 22. Thus, they can be installed in appropriate heat exchange regions according to the heat generation of each electrical component 1 among the multiple electrical components 1. For example, taking the first heat exchanger 2 to dissipate heat from the electrical component 1 as an example, the first heat exchange region 21 can dissipate heat from the electrical component 1 more efficiently than the second heat exchange region 22, which means that the heat exchange capacity of the first heat exchange region 21 is greater than that of the second heat exchange region 22.

[0067] Understandably, the first heat exchange area 21 and the second heat exchange area 22 of the first heat exchanger 2 exchange heat with multiple electrical components 1. Specifically, this can be to dissipate heat from the multiple electrical components 1 or to heat the multiple electrical components 1. Those skilled in the art can make the settings according to actual needs, and this application does not limit this.

[0068] like Figure 1 and Figure 2 As shown, the plurality of electrical components 1 include a first electrical component 11 and a second electrical component 12. The heat generation of the first electrical component 11 is greater than that of the second electrical component 12. The first electrical component 11 is disposed in a first heat exchange region 21, and the second electrical component 12 is disposed in a second heat exchange region 22. Both the first heat exchange region 21 and the second heat exchange region 22 are provided with flow channels 20 for the flow of heat exchange medium, which can exchange heat with the first electrical component 11 and the second electrical component 12. Wherein: the temperature of the heat exchange medium in the flow channel 20 in the first heat exchange region 21 is lower than the temperature of the heat exchange medium in the flow channel 20 in the second heat exchange region 22; or, the heat exchange area of ​​the flow channel 20 in the first heat exchange region 21 is greater than the heat exchange area of ​​the flow channel 20 in the second heat exchange region 22; or, the flow channel 20 in the first heat exchange region 21 has a turbulence structure 201.

[0069] In this embodiment, by placing the first electrical component 11 with high heat generation in the first heat exchange area 21 and the second electrical component 12 with relatively low heat generation in the second heat exchange area 22, not only can heat exchange be performed on multiple electrical components 1 in a timely manner, but also the limited space on the first heat exchanger 2 can be reasonably utilized to match the first electrical component 11 with high heat generation with the area with low heat exchange medium temperature (first heat exchange area 21), thereby enabling timely heat dissipation of the first electrical component 11.

[0070] In specific applications, both the first heat exchange zone 21 and the second heat exchange zone 22 are provided with flow channels 20. The flow channels 20 are used to supply the heat exchange working fluid. One or more flow channels 20 can be provided, and those skilled in the art can set them according to actual needs.

[0071] Understandably, the heat exchange medium can be a coolant, such as water or a mixture of water and ethylene glycol, or a refrigerant, such as tetrafluoroethane (R134a), as long as it can perform heat exchange. Those skilled in the art can choose according to actual needs, and this application does not impose any restrictions on it.

[0072] In some embodiments of this application, the flow channel 20 extends in a straight line or extends in a curved manner.

[0073] In this embodiment, by setting the flow channel 20 to extend in a straight line or to extend in a curved manner, the flexibility of the flow channel 20 setting can be improved, so as to make corresponding settings according to the installation positions of different electrical components 1. Specifically, when the flow channel 20 extends in a straight line, the flow resistance of the heat exchange medium is smaller and it is easier to process. When the flow channel 20 extends in a curved manner, the limited space can be maximized to adapt to the compact layout of electrical components 1, and the turbulence of the heat exchange medium can be increased, the heat exchange time of the heat exchange medium can be extended, and the heat exchange capacity can be improved.

[0074] In specific applications, the flow channel 20 may extend in a straight line in some areas and in a curved direction in other areas. Those skilled in the art can make such a setting according to actual needs, and this application does not impose any restrictions on it.

[0075] In specific applications, the temperature of the heat exchange medium in the flow channel 20 of the first heat exchange zone 21 is lower than the temperature of the heat exchange medium in the flow channel 20 of the second heat exchange zone 22. Specifically, the heat exchange medium in the first heat exchange zone 21 is located at the inlet of the flow channel 20, while the heat exchange medium in the second heat exchange zone 22 is located at the outlet of the flow channel 20. Thus, after the heat exchange medium in the flow channel 20 exchanges heat with the electrical component 1 during its flow, the temperature of the heat exchange medium in the second heat exchange zone 22 is higher. Alternatively, the inflow temperature of the heat exchange medium in the first heat exchange zone 21 can be the inflow temperature of the heat exchange medium in the second heat exchange zone 22.

[0076] In specific applications, the heat exchange area of ​​the flow channels 20 in the first heat exchange region 21 is greater than the heat exchange area of ​​the flow channels 20 in the second heat exchange region 22; specifically, the number of flow channels 20 in the first heat exchange region 21 is greater than the number of flow channels 20 in the second heat exchange region 22. For example, the first heat exchange region 21 has 4 flow channels 20, and the second heat exchange region 22 has 2 flow channels 20, with each flow channel 20 having an equal heat exchange area, thus making the total heat exchange area of ​​the first heat exchange region 21 greater than the total heat exchange area of ​​the second heat exchange region 22; it can also be... The heat exchange area of ​​the flow channel 20 in the first heat exchange region 21 is greater than the heat exchange area of ​​the flow channel 20 in the second heat exchange region 22. For example, the first heat exchange region 21 is provided with flow channel A, and the second heat exchange region 22 is provided with flow channel B. The heat exchange area of ​​flow channel A is greater than the heat exchange area of ​​flow channel B. Of course, other settings are also possible, as long as the heat exchange area of ​​the flow channel 20 in the first heat exchange region 21 is greater than the heat exchange area of ​​the flow channel 20 in the second heat exchange region 22. Those skilled in the art can set it according to actual needs.

[0077] In specific applications, the flow channel 20 in the first heat exchange region 21 has a turbulence structure 201. Specifically, the flow channel 20 in the first heat exchange region 21 has a turbulence structure 201. The turbulence structure 201 can increase the heat exchange area of ​​the flow channel 20 in the first heat exchange region 21, or reduce the flow velocity of the heat exchange medium in the flow channel 20 to prolong the heat exchange time, thereby improving the heat exchange capacity of the first heat exchange region 21.

[0078] It should be noted that the turbulence structure 201 can be any of the following: a protrusion, a turbulence element, etc. It can improve the heat exchange capacity of the first heat exchange region 21 by increasing the heat exchange area or extending the heat exchange time. Those skilled in the art can set it according to actual needs, and this application does not limit it.

[0079] Understandably, a turbulence structure 201 can also be provided within the flow channel 20 in the second heat exchange zone 22. When the turbulence structure 201 is a protrusion, the flow cross-section of the flow channel 20 can be circular, elliptical, rectangular, etc.; the turbulence structure 201 in the flow cross-section of the flow channel 20 can be any of the following shapes: arc-shaped, trapezoidal, wavy, triangular, tooth-shaped, etc.; multiple turbulence structures 201 are specifically arranged at intervals along the entire circumference or part of the circumference of the flow cross-section of the flow channel 20; of course, the extension direction of multiple turbulence structures 201 in the flow channel 20 can be continuous or "intermittent," and those skilled in the art can set it according to actual needs, and this application does not limit it in this regard.

[0080] Specifically, such as Figure 8As shown, in some embodiments of this application, a plurality of turbulence structures 201 are arranged circumferentially at intervals along the flow cross section of the flow channel 20.

[0081] In this embodiment, by setting multiple turbulence structures 201 circumferentially spaced along the flow cross section of the flow channel 20, the contact area between the inner wall of the flow channel 20 and the heat exchange medium is increased, which means the heat exchange area of ​​the heat exchange medium is increased, thereby improving the heat exchange capacity of the heat exchange medium. Moreover, the multiple turbulence structures 201 circumferentially arranged along the flow cross section of the flow channel 20 can reduce the possibility of local accumulation of the heat exchange medium inside the flow channel 20, ensuring that the heat exchange medium can exchange heat for each electrical component 1 of the electrical component 1. At the same time, the multiple turbulence structures 201 can increase the rigidity of the inner wall of the flow channel 20, and alleviate the fatigue stress caused by pressure fluctuations or vibrations of the heat exchange medium.

[0082] In specific applications, the flow cross section of the flow channel 20 can be any shape such as circular, elliptical, rectangular, or polygonal. Multiple turbulence structures 201 can be arranged at intervals along the circumference of the flow channel 20, so that multiple turbulence structures 201 are formed in a "surrounding" manner on the inner wall of the flow channel 20.

[0083] Understandably, the “surrounding” arrangement of multiple turbulence structures 201 increases the contact area between the inner wall of the flow channel 20 and the heat exchange medium, and facilitates processing.

[0084] like Figure 3 and Figure 4 As shown, in some embodiments of this application, each turbulence structure 201 is disposed along the extension direction of the flow channel 20.

[0085] In this embodiment, by setting each turbulence structure 201 to extend along the extension direction of the flow channel 20, that is, the extension direction of each turbulence structure 201 is consistent with the extension direction of the flow channel 20 (extending along the axial direction of the flow channel 20), the flow resistance of the heat exchange medium in the flow channel 20 can be reduced, and the heat exchange medium can flow more stably to dissipate heat on the multiple components of the electrical assembly 1 arranged along the axial direction of the flow channel 20; at the same time, it is easier to process.

[0086] In specific applications, each turbulence structure 201 extends along the extension direction (axial direction) of the flow channel 20, and the heat exchange medium flows more stably along the axial direction. In the high heat generation power component area of ​​the electrical component 1, the height of the turbulence structure 201 can be adjusted to form moderate turbulence in the flow channel 20 of the high heat generation power component area of ​​the electrical component 1, thereby extending the heat exchange time of the heat exchange medium in this area and achieving cooling optimization.

[0087] Understandably, when the flow channel 20 extends in a straight line, each turbulence structure 201 also extends in a straight line; when the flow channel 20 extends in a curved direction, each turbulence structure 201 also extends in a curved direction. That is, each turbulence structure 201 can extend along the axial direction of the flow channel 20. Those skilled in the art can make the settings according to actual needs, and this application does not impose any restrictions on this.

[0088] like Figures 2 to 8 As shown, in some embodiments of this application, the first heat exchanger 2 includes a first heat exchange plate 24, a flow channel 20 is disposed within the first heat exchange plate 24, and the side end face of the first heat exchange plate 24 facing the electrical component 1 is a first surface 23; the flow channel 20 has a first inner wall 20a and a second inner wall 20b disposed opposite to each other, both the first inner wall 20a and the second inner wall 20b are disposed parallel to the first surface 23, and a plurality of turbulence structures 201 are spaced apart along the width direction of the first heat exchanger 2 on the first inner wall 20a, and a plurality of turbulence structures 201 are spaced apart along the width direction of the first heat exchanger 2 on the second inner wall 20b.

[0089] In this embodiment, the flow cross-section of the flow channel 20 is rectangular, and the first inner wall 20a and the second inner wall 20b of the flow channel 20 are parallel to the first surface 23, which can increase the projected overlapping area of ​​the flow channel 20 and the first surface 23 (the long side of the flow channel 20 is parallel to the first surface 23), that is, increase the heat exchange area of ​​the heat exchange medium; and multiple turbulence structures 201 are spaced apart along the width direction of the first heat exchange element 2 on the first inner wall 20a, and multiple turbulence structures 201 are spaced apart along the width direction of the first heat exchange element 2 on the second inner wall 20b, thereby forming double-sided turbulence in the flow channel 20, which more efficiently destroys the laminar boundary layer of the heat exchange medium in the flow channel and improves the convective heat transfer coefficient of the heat exchange medium; and can ensure that the heat exchange medium is uniformly distributed in the flow channel 20, reducing the possibility of insufficient heat dissipation at the edge due to the heat exchange medium being concentrated in the middle of the flow channel 20.

[0090] It should be explained that the flow cross section of the flow channel 20 is rectangular. When multiple turbulence structures 201 are not set, the first inner wall 20a and the second inner wall 20b of the flow channel 20 are planar. Setting the first inner wall 20a and the second inner wall 20b to be parallel to the first surface 23 can ensure that the projected overlapping area of ​​the flow channel 20 and the first surface 23 is larger, that is, the flow channel 20 covers more of the first surface 23. Thus, the heat exchange medium in the flow channel 20 can dissipate heat to the electrical components 1 installed on the first surface 23 more efficiently through the first heat exchange plate 24.

[0091] In specific applications, the flow cross section of the flow channel 20 is rectangular, that is, a flat and wide structure, which is compatible with the structure of the first heat exchange plate 24 (both are flat and wide structures). This allows the flow channel 20 to cover more of the first surface 23, and makes the heat exchange medium in the flow channel 20 have a higher heat exchange capacity for the electrical components 1 installed on the first surface 23.

[0092] It should be noted that the first surface 23 is specifically used for installing electrical components 1. In practical applications, the first heat exchange plate 24 is installed on the bottom of the electrical compartment 42, and the electrical components 1 are installed on the first surface 23 of the first heat exchange plate 24 facing away from the bottom of the compartment.

[0093] Specifically, multiple turbulence structures 201 are spaced apart on the first inner wall 20a along the width direction of the first heat exchanger 2, and multiple turbulence structures 201 are spaced apart on the second inner wall 20b along the width direction of the first heat exchanger 2. That is, multiple turbulence structures 201 are provided on the two longer inner walls of the flow channel 20 to increase the heat exchange area of ​​the heat exchange medium and improve the strength of the inner wall of the flow channel 20.

[0094] like Figure 8 As shown, in some embodiments of this application, the width D1 of each turbulence structure 201 along the width direction of the first heat exchanger 2 and the width D2 of the flow channel 20 along the width direction of the first heat exchanger 2 satisfy: 0.07≤D1 / D2≤0.6.

[0095] In this embodiment of the application, by setting the ratio D1 / D2 between the width D1 of each turbulence structure 201 along the width direction of the first heat exchanger 2 and the width D2 of the flow channel 20 along the width direction of the first heat exchanger 2 to be within a reasonable range, it is possible to ensure that the turbulence structure 201 has a turbulence effect on the flow of the heat exchange medium and enhances the strength of the inner wall of the flow channel 20, while also reducing the heat exchange medium from stagnating in the flow channel 20 for too long, thus ensuring the flow stability of the heat exchange medium.

[0096] It should be explained that when the ratio D1 / D2 between the width D1 of each turbulence structure 201 along the width direction of the first heat exchanger 2 and the width D2 of the flow channel 20 along the width direction of the first heat exchanger 2 is less than 0.07, that is, when the width D1 of each turbulence structure 201 along the width direction of the first heat exchanger 2 is too small, higher processing precision is required, increasing processing costs, and it is still impossible to effectively turbulent the heat exchange medium in the flow channel 20. On the other hand, when the ratio D1 / D2 between the width D1 of each turbulence structure 201 along the width direction of the first heat exchanger 2 and the width D2 of the flow channel 20 along the width direction of the first heat exchanger 2 is greater than 0.6, that is, when the width D1 of each turbulence structure 201 along the width direction of the first heat exchanger 2 is too large, it is easy to form a "dead zone" between two adjacent turbulence structures 201, causing the heat exchange medium to stagnate in this area for too long, which is not conducive to the flow stability of the heat exchange medium.

[0097] In specific applications, the ratio D1 / D2 between the width D1 of each turbulence structure 201 along the width direction of the first heat exchanger 2 and the width D2 of the flow channel 20 along the width direction of the first heat exchanger 2 can be set to any value such as 0.07, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 or a range between two arbitrary values.

[0098] It should be noted that in actual measurements, such as Figure 8 As shown, when the turbulence structure 201 is "arc-shaped", the width D1 of each turbulence structure 201 along the width direction of the first heat exchanger 2 can be specifically taken as the vertical distance between the lowest points of adjacent turbulence structures 201 in the width direction of the first heat exchanger 2. Of course, when the turbulence structure 201 is in other shapes, the measurement method can be adapted to change. The width D2 of the flow channel 20 along the width direction of the first heat exchanger 2 can be specifically measured as the vertical distance between the two inner walls of the flow channel 20 along the width direction of the first heat exchanger 2.

[0099] like Figure 8 As shown, in some embodiments of this application, each turbulence structure 201 extends along the length direction of the first heat exchanger 2, the height of each turbulence structure 201 along the height direction of the first heat exchanger 2 is H1, the height of the flow channel 20 along the height direction of the first heat exchanger 2 is H2, and the height direction of the first heat exchanger 2 is perpendicular to the width direction of the first heat exchanger 2, satisfying: 0.07≤H1 / H2≤0.6.

[0100] In this embodiment of the application, by setting the ratio H1 / H2 between the height H1 of each turbulence structure 201 along the height direction of the first heat exchanger 2 and the height H2 of the flow channel 20 along the height direction of the first heat exchanger 2 to be within a reasonable range, it is possible to ensure the disturbance effect of the turbulence structure 201 on the flow of the heat exchange medium while reducing the turbulence structure 201 from encroaching on too much flow space of the heat exchange medium.

[0101] It should be explained that when the ratio H1 / H2 between the height H1 of each turbulence structure 201 along the height direction of the first heat exchanger 2 and the height H2 of the flow channel 20 along the height direction of the first heat exchanger 2 is less than 0.07, that is, when the height H1 of each turbulence structure 201 along the height direction of the first heat exchanger 2 is too small, the turbulence structure 201 cannot effectively disturb the heat exchange medium in the flow channel 20. On the other hand, when the ratio H1 / H2 between the height H1 of each turbulence structure 201 along the height direction of the first heat exchanger 2 and the height H2 of the flow channel 20 along the height direction of the first heat exchanger 2 is greater than 0.6, that is, when the height H1 of each turbulence structure 201 along the height direction of the first heat exchanger 2 is too large, the turbulence structure 201 will occupy too much of the internal space of the flow channel 20, that is, it will occupy too much of the flow space of the heat exchange medium.

[0102] In specific applications, the ratio H1 / H2 between the height H1 of each turbulence structure 201 along the height direction of the first heat exchanger 2 and the height H2 of the flow channel 20 along the height direction of the first heat exchanger 2 can be set to any value such as 0.07, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 or a range between two arbitrary values.

[0103] It should be noted that in actual measurements, such as Figure 8 As shown, when the turbulence structure 201 is "arc-shaped", the height H1 of each turbulence structure 201 along the height direction of the first heat exchanger 2 can be specifically taken as the vertical distance between the lowest point and the highest point of the adjacent turbulence structure 201. Of course, when the turbulence structure 201 is in other shapes, the measurement method can be adapted to change. The height H2 of the flow channel 20 along the height direction of the first heat exchanger 2 can be specifically measured as the vertical distance between the first inner wall 20a and the second inner wall 20b in the height direction of the first heat exchanger 2.

[0104] It should be explained that multiple flow channels 20 can be provided, and each flow channel 20 and the turbulence-causing structure 201 disposed therein have the aforementioned relationship. For example, when multiple flow channels 20 are provided, the width of the first heat exchange plate 24 is 190mm ± 20%, the length is 960mm ± 20%, and the height is 7.5mm ± 50%; wherein, the width D2 of each flow channel 20 is 8mm ± 50%, and the height H2 is 4mm ± 50%; the width D1 of each turbulence-causing structure 201 in each flow channel 20 is 1.6mm ± 50%, and the height H1 is 0.8mm ± 50%.

[0105] like Figure 7 As shown, in some embodiments of this application, the first heat exchange plate 24 is a one-piece molded part; or, the first heat exchange plate 24 is a split molded part.

[0106] In the embodiments of this application, when the first heat exchange plate 24 is a one-piece molded part, the structural strength of the first heat exchange plate 24 can be guaranteed, and the production cycle is short, making it suitable for mass production; while when the first heat exchange plate 24 is a split molded part, the processing difficulty is lower, and it is easier to maintain.

[0107] In specific applications, when the first heat exchange plate 24 is a one-piece molded part, it can be processed by extrusion, and the flow channel 20 can be extruded during the extrusion process; when the first heat exchange plate 24 is a split molded part, the two first heat exchange plates 24 can be divided into two parts along the height direction of the first heat exchange component 2, and after being machined separately, they can be welded together to form the first heat exchange plate 24.

[0108] like Figure 3 , Figure 4 , Figure 6 and Figure 8As shown, in some embodiments of this application, multiple flow channels 20 are provided, and the multiple flow channels 20 are spaced apart in the first heat exchange plate 24 along the width direction of the first heat exchange element 2, and each flow channel 20 penetrates the first heat exchange plate 24 along the length direction of the first heat exchange element 2.

[0109] In this embodiment, multiple flow channels 20 are spaced apart within the first heat exchange plate 24 along the width direction of the first heat exchanger 2, thereby allowing the flow channels to be configured according to the different component positions of the electrical component 1, thus improving the heat dissipation effect of the heat exchange medium in each flow channel 20 on the different components of the electrical component 1; and each flow channel 20 penetrates the first heat exchange plate 24 along the length direction of the first heat exchanger 2, enabling the flow channel 20 to cover the entire area of ​​the first heat exchange plate 24 along the length direction of the first heat exchanger 2, thereby increasing the heat dissipation area on the first heat exchange plate 24, which in turn increases the installation area of ​​the electrical component 1.

[0110] In specific applications, such as Figure 2 and Figure 3 As shown, when multiple flow channels 20 are spaced apart within the first heat exchange plate 24 along the width direction of the first heat exchange component 2, the specific position of the flow channels 20 can be adjusted according to the position of different components of the electrical assembly 1. For example, the electrical assembly 1 is provided with two high-heat-generating components. Some of the multiple flow channels 20 are arranged corresponding to one high-heat-generating component, and other flow channels 20 are arranged corresponding to another high-heat-generating component. That is, the "sparseness" of the flow channels 20 in the width direction of the first heat exchange component 2 can be set according to the heating condition of the components of the electrical assembly 1 to improve the heat exchange capacity.

[0111] It should be noted that each flow channel 20 extends through the first heat exchange plate 24 along the length direction of the first heat exchange element 2. Specifically, the flow channel 20 may extend straight through the first heat exchange plate 24 along the length direction of the first heat exchange element 2, or the flow channel 20 may bend and extend to extend through the first heat exchange plate 24 along the length direction of the first heat exchange element 2. Of course, it may also extend through the first heat exchange plate 24 in other forms. Those skilled in the art can make the settings according to the actual situation, and this application does not limit it.

[0112] like Figures 2 to 6 , Figure 9 and Figure 10As shown, in some embodiments of this application, the first heat exchanger 2 further includes a manifold 25, and the first heat exchange plate 24 has opposing first ends 24a and 24b along its length. The manifold 25 is connected to at least one of the first ends 24a and 24b. The first heat exchange plate 24 is provided with an inlet channel 241 and an outlet channel 242. When the manifold 25 is connected to the first end 24a, the manifold 25 communicates with the inlet channel 241 and each flow channel 20 to divert the heat exchange medium to each flow channel 20. When the manifold 25 is connected to the first end 24b, the manifold 25 communicates with the outlet channel 242 and each flow channel 20 to collect the heat exchange medium in each flow channel 20 and introduce it into the outlet channel 242.

[0113] In this embodiment of the application, by connecting the manifold 25 to at least one of the first end 24a and the first end 24b, the external heat exchange medium can enter each flow channel 20 through one manifold 25, and the heat exchange medium after heat exchange in each flow channel 20 is collected together through another manifold 25 and introduced into the pipeline of the heat management system to form a complete circulation of the heat exchange medium; at the same time, the manifold 25 can split or merge the heat exchange medium in each flow channel 20 to ensure the flow rate of the heat exchange medium in each flow channel 20.

[0114] In practical applications, the external heat exchange medium can be sequentially diverted to each flow channel 20 through the liquid inlet channel 241 and the manifold 25 in the first heat exchange plate 24. After the heat exchange is completed in each flow channel 20, the heat exchange medium can be collected in the manifold 25 and then flow out through the liquid outlet channel 242, and then flow into the pipeline of the thermal management system, thereby forming a complete cycle of the heat exchange medium.

[0115] Understandably, such as Figure 3 and Figure 6 As shown, in order to further improve the integration of the first heat exchanger 2 and reduce space occupation, both the liquid inlet channel 241 and the liquid outlet channel 242 are provided on the first heat exchange plate 24, and openings are respectively provided at the first end 24a and the first end 24b of the first heat exchange plate 24 in the length direction; and since the flow channel 20 passes through the first heat exchange plate 24 along the length direction of the first heat exchanger 2, the manifold 25 is provided at least one of the first end 24a and the first end 24b of the first heat exchange plate 24. Specifically, the manifold 25 can be connected only at the first end 24a, or only at the first end 24b, or both the first end 24a and the first end 24b can be connected to the manifold 25; so that the manifold 25 can communicate with each flow channel 20 and the liquid inlet channel 241, and / or, the manifold 25 can communicate with each flow channel 20 and the liquid outlet channel 242.

[0116] like Figure 4 , Figure 6 and Figure 9 As shown, in some embodiments of this application, the manifold 25 includes a first flow section 251, a second flow section 252, and a first hole 253, the first hole 253 connecting the first flow section 251 and the second flow section 252; when the manifold 25 is connected to the first end 24a, the first flow section 251 is connected to the liquid inlet channel 241, and the second flow section 252 is connected to each flow channel 20; when the manifold 25 is connected to the first end 24b, the first flow section 251 is connected to the liquid outlet channel 242, and the second flow section 252 is connected to each flow channel 20.

[0117] In this embodiment, when the manifold 25 is connected to the first end 24a, the heat exchange medium entering the liquid inlet channel 241 first enters the first flow section 251 of one manifold 25, and then enters the second flow section 252 through the first hole 253. The heat exchange medium in the second flow section 252 then enters multiple flow channels 20 respectively. When the manifold 25 is connected to the first end 24b, the heat exchange medium in each flow channel 20 enters the second flow section 252 of another manifold 25. The heat exchange medium in the second flow section 252 enters the first flow section 251 through the first hole 253, and then enters the liquid outlet channel 242. This structure makes the flow rate of the heat exchange medium entering each flow channel 20 more uniform, ensuring the consistency of the flow rate of the heat exchange medium in each flow channel 20, thereby ensuring the consistency of the heat dissipation efficiency of each part of the first heat exchange plate 24.

[0118] In specific applications, the first flow section 251 is provided with a first flow cavity, which can be connected to the liquid inlet channel 241 or the liquid outlet channel 242; the second flow section 252 is provided with a second flow cavity, which can be connected to each flow channel 20; the first flow cavity is connected to the second flow cavity through the first hole 253; when the manifold 25 is connected to the first end 24a, the heat exchange medium can sequentially pass through the liquid inlet channel 241-first flow section 251-first hole 253-second flow section 252 into each flow channel 20 to dissipate heat from the electrical components 1 installed on the first heat exchange plate 24; when the manifold 25 is connected to the first end 24b, the heat exchange medium can sequentially pass through the heat exchange medium in each flow channel 20-second flow section 252-first hole 253-first flow section 251-liquid outlet channel 242 to draw out the heat exchange medium that has finished heat exchange in each flow channel 20, forming a circulation of the heat exchange medium.

[0119] It should be noted that, as Figure 9 and Figure 10As shown, the first flow chamber in the first flow section 251 is specifically provided with two sub-chambers. One sub-chamber can be directly connected to the liquid inlet channel 241 or the liquid outlet channel 242, and the other sub-chamber can be connected to the second flow chamber through the first hole 253. One sub-chamber is connected to the other sub-chamber through a through hole.

[0120] like Figure 9 and Figure 10 As shown, in some embodiments of this application, the manifold 25 further includes a first sealing block 255, so that after another sub-chamber is processed, the two ends of the other sub-chamber along the width direction of the first heat exchanger 2 are sealed by the first sealing block 255. While improving the processing convenience, the sealing performance of the manifold 25 can be guaranteed. Specifically, the first sealing block 255 can be sealed to the first flow section 251 by welding.

[0121] like Figure 4 , Figure 6 , Figure 8 , Figure 9 and Figure 10 As shown, in some embodiments of this application, a plurality of first holes 253 are provided, and each first hole 253 is offset from the flow channel 20 along the length direction of the first heat exchanger 2.

[0122] In this embodiment, by setting each first hole 253 to be staggered from the flow channel 20 along the length direction of the first heat exchanger 2, the heat exchange medium flowing out of the first hole 253 will not flow directly into the nearby flow channel 20, thereby further ensuring the consistency of the heat exchange medium flow rate in each flow channel 20.

[0123] In specific applications, such as Figure 9 As shown, the solid portion of the first heat exchange plate 24 without the flow channel 20 is the mounting portion 243, which actually forms the support portion for the flow channel 20; as Figure 10 and Figure 11 As shown, multiple first holes 253 are provided, and the projection of each first hole 253 along the length direction of the first heat exchanger 2 falls within the range of the mounting part 243, so that the heat exchange medium flowing out of each first hole 253 will not flow directly into the flow channel 20, thereby ensuring the consistency of the heat exchange medium flow rate in each flow channel 20.

[0124] Understandably, the number of first holes 253 can be any number, such as 3, 4, or 5. The number of first holes 253 can be set according to actual needs, and this application does not limit this. For example, there are 3 first holes 253, and the 3 first holes 253 are spaced apart along the width direction of the first heat exchanger 2.

[0125] like Figure 5As shown in the embodiment of this application, the first heat exchange plate 24 further includes mounting holes 246 and mounting posts 247. The mounting holes 246 and mounting posts 247 are provided on the mounting portion 243. The mounting holes 246 and mounting posts 247 are used to install different electrical components 1 of the electrical assembly 1. Specifically, both the mounting holes 246 and mounting posts 247 are provided with threaded holes, so that the different electrical components 1 of the electrical assembly 1 can be locked to the first heat exchange plate 24, thereby allowing the different electrical components 1 of the electrical assembly 1 to be in close contact with the first heat exchange plate 24 to improve heat transfer efficiency. Moreover, the mounting holes 246 and mounting posts 247 are provided on the mounting portion 243 to ensure the reliability of the connection. In actual processing, the main body of the first heat exchange plate 24 can be processed by extrusion process, and then the mounting holes 246 can be processed by machining. Finally, the mounting posts 247 can be welded to the first heat exchange plate 24 by welding process.

[0126] like Figure 4 , Figure 6 , Figure 7 , Figure 9 and Figure 10 As shown, in some embodiments of this application, the second flow section 252 has a first mounting groove 2521 facing the first heat exchange plate 24, a plurality of first holes 253 connecting the first mounting groove 2521 and the first flow section 251, and both the first end 24a and the first end 24b are provided with notches 244, which are connected to a plurality of flow channels 20. The first mounting groove 2521 is engaged with the first end 24a or the first end 24b to accommodate the notches 244 and to connect the first mounting groove 2521 with the plurality of flow channels 20.

[0127] In this embodiment, the second flow section 252 has a first mounting groove 2521 facing the first heat exchange plate 24. The first mounting groove 2521 forms a second flow cavity. The first mounting groove 2521 can be engaged with the first end 24a or the first end 24b of the first heat exchange plate 24, so that the first mounting groove 2521 can accommodate the notch 244 on the first heat exchange plate 24. This allows the second flow cavity formed by the first mounting groove 2521 to communicate with each flow channel 20 connected to the notch 244. While ensuring the sealing between the manifold 25 and the first heat exchange plate 24, the notch 244 allows the second flow cavity formed by the first mounting groove 2521 to still have enough space to accommodate the heat exchange medium after the manifold 25 is engaged with the first heat exchange plate 24.

[0128] In specific applications, such as Figure 9 and Figure 10As shown, the first mounting groove 2521 has a slot facing the first heat exchange plate 24, and the first mounting groove 2521 forms a second flow cavity. When the first mounting groove 2521 is engaged with the first heat exchange plate 24, the first mounting groove 2521 can accommodate the notch 244, that is, the openings of multiple flow channels 20 are located in the first mounting groove 2521, and the notch 244 can ensure that there is a certain gap between the bottom of the first mounting groove 2521 and the opening of the flow channel 20 so that the heat exchange medium can flow in.

[0129] like Figure 4 , Figure 6 , Figure 7 and Figure 9 As shown, in some embodiments of this application, a first positioning part 254 is provided between the first circulation part 251 and the first mounting groove 2521, and a second mounting groove 245 is provided at both the first end 24a and the first end 24b, and the first positioning part 254 is engaged with the second mounting groove 245.

[0130] In this embodiment of the application, a first positioning part 254 is formed between a sub-chamber of the first flow section 251 and the first mounting groove 2521. The first positioning part 254 can be engaged with the second mounting groove 245 on the first heat exchange plate 24, thereby forming the installation positioning when the manifold 25 is installed, and forming a foolproof design to facilitate installation.

[0131] In practical applications, the first positioning part 254 also separates a sub-chamber of the first circulation part 251 from the first mounting groove 2521.

[0132] Understandably, a groove may be provided on the first flow section 251, and a protrusion may be provided on the side of the first heat exchange plate 24 facing the manifold 25, with the protrusion engaging in the groove to form an installation positioning.

[0133] like Figure 1 As shown, in some embodiments of this application, the first electrical component 11 includes at least one of a power control module 111 and a motor control module 112, and the second electrical component 12 includes at least one of a battery 121 and a power distribution module 122.

[0134] In this embodiment of the application, by setting the first electrical component 11 to include at least one of a power control module 111 and a motor control module 112, and the second electrical component 12 to include at least one of a storage battery 121 and a power distribution module 122, the appropriate components can be selected according to actual needs in practical applications, thereby improving the flexibility of the electrical device.

[0135] like Figure 1As shown, in some embodiments of this application, the plurality of electrical components 1 include a third electrical component 13 and a fourth electrical component 14. The heat generation of the third electrical component 13 is less than that of the fourth electrical component 14. The third electrical component 13 is disposed in a first heat exchange region 21, and the fourth electrical component 14 is disposed in a second heat exchange region 22. Both the first heat exchange region 21 and the second heat exchange region 22 are provided with flow channels 20 for the flow of heat exchange medium. The heat exchange medium can exchange heat with the third electrical component 13 and the fourth electrical component 14. The temperature of the heat exchange medium in at least a portion of the flow channels 20 in the first heat exchange region 21 is lower than the temperature of the heat exchange medium in at least a portion of the flow channels 20 in the second heat exchange region 22.

[0136] Alternatively, the first heat exchange zone 21 is close to the inlet, and the second heat exchange zone 22 is far from the inlet.

[0137] In this embodiment, a third electrical component 13 with lower heat generation is placed in the first heat exchange region 21, and a fourth electrical component 14 with higher heat generation is placed in the second heat exchange region 22. This way, after the third electrical component 13 with lower heat generation exchanges heat with the heat exchange medium in the flow channel 20, the temperature of the heat exchange medium will not rise too much, thereby affecting the subsequent heat exchange of the heat exchange medium.

[0138] For example, such as Figure 1 As shown, Figure 1 The heat exchange medium in the flow channel 20 flows from left to right as shown in the diagram, with the left end being the inlet and the right end being the outlet. The first heat exchange zone 21 is located close to the inlet, and the second heat exchange zone 22 is located away from the inlet. This allows the heat exchange medium in the flow channel 20 to first flow through the first heat exchange zone 21 and then through the second heat exchange zone 22. After the heat exchange in the first heat exchange zone 21 is completed, the temperature of the heat exchange medium will rise, and the heat exchange medium will continue to flow into the second heat exchange zone 22. This results in the temperature of the heat exchange medium in at least a portion of the flow channel 20 in the first heat exchange zone 21 being lower than the temperature of the heat exchange medium in at least a portion of the flow channel 20 in the second heat exchange zone 22.

[0139] It should be noted that the heat exchange medium exchanges heat with electrical component 1, specifically referring to the dissipation of heat from electrical component 1. The heat exchange medium is a refrigerant, such as tetrafluoroethane (R134a). Figure 1 As shown, at this time, the third electrical component 13 with lower heat generation is placed in the first heat exchange zone 21. After the third electrical component 13 exchanges heat with the refrigerant, since the heat generation of the third electrical component 13 is small, the temperature of the refrigerant will not rise excessively after absorbing heat. As a result, the refrigerant still has a large heat absorption capacity after continuing to flow to the second heat exchange zone 22, so as to effectively dissipate heat from the fourth electrical component 14 in the second heat exchange zone 22.

[0140] For example, such as Figure 2 As shown, the left side is the inlet of the flow channel 20. The heat generated by the battery 121 (third electrical component 13) is less than that generated by the power control module 111 (fourth electrical component 14). The battery 121 is placed in the first heat exchange area 21, which is closer to the inlet, and the power control module 111 is placed in the second heat exchange area 22, which is farther away from the inlet. Since the heat generated by the battery 121 is lower, the temperature of the heat exchange medium in the flow channel 20 will not change too much after heat exchange with the battery 121. Thus, it can still efficiently exchange heat when it flows through the power control module 111.

[0141] It should be noted that the inlet specifically refers to the opening where the heat exchange medium enters the flow channel 20.

[0142] like Figure 1 As shown, in some embodiments of this application, the third electrical component 13 includes at least one of a battery 121 and a power distribution module 122, and the fourth electrical component 14 includes at least one of a power control module 111 and a motor control module 112.

[0143] In this embodiment, by providing the third electrical component 13 to include at least one of a storage battery 121 and a power distribution module 122, and the fourth electrical component 14 to include at least one of a power control module 111 and a motor control module 112, the appropriate components can be selected according to actual needs in practical applications, thereby improving the flexibility of the electrical device.

[0144] like Figure 13 and Figure 14 As shown, in some embodiments of this application, the power control module 111 includes at least one of a power supply unit 1111, a power drive unit 1112, and a power control unit 1113, and the motor control module 112 includes at least one of a drive unit 1121, a capacitor unit 1122, an electronic drive unit 1123, and an electronic control unit 1124.

[0145] In this embodiment, the power control module 111 includes at least one of a power supply unit 1111, a power drive unit 1112, and a power control unit 1113, and the motor control module 112 includes at least one of a drive unit 1121, a capacitor unit 1122, an electric drive unit 1123, and an electric control unit 1124; thus, in practical applications, the appropriate components can be selected according to actual needs, improving the flexibility of the electrical device.

[0146] like Figure 1As shown, in some embodiments of this application, a first flow channel 202 is provided in the first heat exchange region 21, and a second flow channel 203 is provided in the second heat exchange region 22; or a first flow channel 202 is provided in the first heat exchange region 21, and a second flow channel 203 and a portion of the first flow channel 202 are provided in the second heat exchange region 22.

[0147] In this embodiment of the application, by providing a first flow channel 202 in the first heat exchange region 21 and a second flow channel 203 in the second heat exchange region 22, heat exchange can be performed on the electrical components 1 in the first heat exchange region 21 and the electrical components 1 in the second heat exchange region 22 through different flow channels 20, thereby improving the heat exchange capacity of each electrical component 1.

[0148] In specific applications, a first flow channel 202 may be provided in the first heat exchange region 21, and the heat exchange area of ​​the first flow channel 202 may be greater than the heat exchange area of ​​the second flow channel 203 in the second heat exchange region 22. Alternatively, a first flow channel 202 may be provided in the first heat exchange region 21, and a second flow channel 203 and a portion of the first flow channel 202 may be provided in the second heat exchange region 22. In this case, the heat exchange area of ​​the first flow channel 202 in the first heat exchange region 21 may be greater than the sum of the heat exchange areas of the second flow channel 203 and the first flow channel 202 in the second heat exchange region 22.

[0149] like Figure 5 and Figure 7 As shown, in some embodiments of this application, the first heat exchanger 2 has a first surface 23, and a plurality of electrical components 1 are disposed on the first surface 23. The first surface 23 is at least partially recessed away from the electrical components 1 to form a groove 231, which is used to install the electrical components 1.

[0150] In this embodiment of the application, by providing a groove 231 on the first surface 23 of the electrical component 1, the thermal conduction distance between the electrical component 1 and the heat exchange medium flowing in the flow channel 20 can be reduced, thereby improving the heat exchange capacity of the first heat exchanger 2.

[0151] In a specific application, the groove 231 includes a first groove 2311 and a second groove 2312. Since the power control module 111 and the motor control module 112 in the electrical component 1 generate relatively more heat, the power control module 111 is installed in the first groove 2311 and the motor control module 112 is installed in the second groove 2312.

[0152] like Figure 4As shown, in some embodiments of this application, among the plurality of flow channels 20, the projection of a portion of the flow channel 20 along the height direction of the first heat exchanger 2 at least partially coincides with one of the electrical components 1, and the projection of another portion of the flow channel 20 along the height direction of the first heat exchanger 2 at least partially coincides with another of the electrical components 1.

[0153] In this embodiment of the application, by setting a portion of the flow channel 20 to be projected along the height direction of the first heat exchanger 2 to at least partially coincide with one of the electrical components 1 in the electrical assembly 1, and another portion of the flow channel 20 to be projected along the height direction of the first heat exchanger 2 to at least partially coincide with another electrical component 1 in the electrical assembly 1, the flow channel 20 can be matched with different electrical components 1 in the electrical assembly 1 for heat dissipation, thereby improving heat dissipation efficiency.

[0154] In specific applications, such as Figure 3 As shown, the multiple flow channels 20 specifically include a first sub-flow channel 204, a second sub-flow channel 205, a third sub-flow channel 206, a fourth sub-flow channel 207, a fifth sub-flow channel 208, a sixth sub-flow channel 209, a seventh sub-flow channel 2010, an eighth sub-flow channel 2011, a ninth sub-flow channel 2012, and a tenth sub-flow channel 2013; the above multiple flow channels 20 are arranged sequentially along the width direction of the first heat exchanger 2; the power control module 111 is installed in the first groove 2311 and is electrically connected to the battery 5. The power control module 111 is used to convert the AC power input to the battery pack into DC power and then deliver it to the battery 5; the projections of the first sub-flow channel 204, the second sub-flow channel 205, the third sub-flow channel 206, and the fourth sub-flow channel 207 along the height direction of the first heat exchanger 2 at least partially coincide with the power control module 111.

[0155] It should be noted that, as Figure 13 As shown, the power control module 111 specifically includes a power unit 1111, a power drive unit 1112, and a power control unit 1113 that are interconnected. The power unit 1111 has the largest heat generation power. Therefore, the power unit 1111 is directly mounted to the first groove 2311 by bolts on the mounting hole 246 in the first groove 2311. This reduces the contact distance between the heat exchange medium and the power unit 1111, shortens the heat conduction path, and improves the heat dissipation efficiency.

[0156] Specifically, the power control module 111 has a width of 170mm ± 20%, a length of 300mm ± 20%, and a height of 70mm ± 20%; the power unit 1111 has a width of 100mm ± 20%, a length of 230mm ± 20%, and a height of 20mm ± 20%; thus, the specific dimensions of the first groove 2311 need to be able to accommodate at least a portion of the power unit 1111.

[0157] like Figure 2 , Figure 3 , Figure 4 and Figure 14 As shown, the electrical component 1 also includes a motor control module 112, which is at least partially installed in the second recess 2312 and electrically connected to the battery 5. The motor control module 112 is used to convert the DC power output by the battery 5 into AC power and to control the vehicle motor. The projections of the fifth sub-flow channel 208, the sixth sub-flow channel 209, the seventh sub-flow channel 2010, the eighth sub-flow channel 2011, the ninth sub-flow channel 2012 and the tenth sub-flow channel 2013 along the height direction of the first heat exchanger 2 at least partially coincide with the motor control module 112.

[0158] It should be noted that, as Figure 14 As shown, the motor control module 112 specifically includes a drive unit 1121, a capacitor unit 1122, an electronically controlled drive unit 1123, and an electronically controlled control unit 1124 that are interconnected. Among them, the drive unit 1121 and the capacitor unit 1122 have the largest heat generation power. Therefore, the projections of the fifth sub-channel 208, the sixth sub-channel 209, the seventh sub-channel 2010, and the eighth sub-channel 2011 along the height direction of the first heat exchanger 2 at least partially coincide with the drive unit 1121; the projections of the ninth sub-channel 2012 and the tenth sub-channel 2013 along the height direction of the first heat exchanger 2 at least partially coincide with the capacitor unit 1122.

[0159] Furthermore, by directly mounting the drive unit 1121 to the second groove 2312 via bolts on the mounting hole 246 within the second groove 2312, the contact distance between the heat exchange medium and the drive unit 1121 can be reduced, the heat conduction path can be shortened, and the heat dissipation efficiency can be improved.

[0160] Specifically, the width of the motor control module 112 is 180mm±20%, the length is 270mm±20%, and the height is 90mm±20%; the width of the drive unit 1121 is 100mm±20%, the length is 160mm±20%, and the height is 15mm±20%; thus, the specific dimensions of the second groove 2312 need to be able to accommodate at least part of the drive unit 1121.

[0161] like Figure 2 , Figure 3 and Figure 4As shown, electrical component 1 also includes a battery 121 and a power distribution module 122. Both the battery 121 and the power distribution module 122 are electrically connected to the battery 5. The power distribution module 122 is used to distribute the high-voltage current of the battery 5. The projections of the second sub-channel 205, the third sub-channel 206, the fourth sub-channel 207, the fifth sub-channel 208, and the sixth sub-channel 209 along the height direction of the first heat exchanger 2 at least partially coincide with the battery 121. The projections of the second sub-channel 205, the third sub-channel 206, the fourth sub-channel 207, the fifth sub-channel 208, the sixth sub-channel 209 along the height direction of the first heat exchanger 2 at least partially coincide with the battery 121. The sixth sub-channel 209, the seventh sub-channel 2010, and the eighth sub-channel 2011 at least partially overlap with the power distribution module 122. In practical applications, by corresponding the multiple channels 20 to the components of different electrical components 1, the heat exchange medium in the channels 20 can be used for heat dissipation in a reasonable and efficient manner. Specifically, the battery 121 generates less heat and is located at the inlet of the channel 20, so that the temperature of the heat exchange medium flowing through the battery 121 will not rise too much, and can continue to exchange heat efficiently when flowing through the subsequent power control module 111.

[0162] like Figure 2 , Figure 3 , Figure 11 and Figure 12 As shown, in some embodiments of this application, the electrical device further includes a connection component 3, which is detachably connected to the first heat exchanger 2. The connection component 3 is used to introduce and draw out the heat exchange medium from the first heat exchanger 2.

[0163] In this embodiment of the application, by setting the connecting component 3 to be detachably connected to the first heat exchanger 2, it is convenient to disassemble and repair the first heat exchanger 2, and the heat exchange medium can be introduced into or drawn out of the first heat exchanger 2.

[0164] In a specific application, the connecting component 3 includes a first connector 31, which has a liquid inlet 311 and a liquid outlet 312. The first connector 31 is connected to the first heat exchange plate 24, the liquid inlet 311 is connected to the liquid inlet channel 241, and the liquid outlet 312 is connected to the liquid outlet channel 242.

[0165] In specific applications, such as Figure 11 and Figure 12 As shown, the first connector 31 is specifically "gate-shaped", which allows the connection position to be raised from the first heat exchange plate 24 along the height direction of the first heat exchange component 2, thereby facilitating the connection.

[0166] It should be noted that, in specific applications, the first connector 31 is fixedly connected to the first heat exchange plate 24 by welding, and the liquid inlet channel 241 is connected to the liquid inlet hole 311 and the liquid outlet channel 242 is connected to the liquid outlet hole 312 by welding.

[0167] Understandably, both the liquid inlet 311 and the liquid outlet 312 are provided with two interfaces, so that one interface is connected to the first heat exchange plate 24 and the other interface is connected to the external pipeline.

[0168] like Figure 12 As shown, in some embodiments of this application, the first connector 31 further includes a second sealing block 315, which is welded to the body of the first connector 31, thereby facilitating the processing of the liquid inlet 311 and the liquid outlet 312, and sealing is performed by the second sealing block 315 after processing.

[0169] like Figure 2 , Figure 3 and Figure 11 As shown, in some embodiments of this application, the connecting component 3 further includes a second connector 32, which is adapted to be connected to the battery pack housing 4 and detachably connected to the first connector 31. The second connector 32 has a first channel 321 and a second channel 322. One end of the first channel 321 is adapted to be connected to a first external pipeline, and the other end of the first channel 321 is connected to an inlet port 311 to introduce the heat exchange medium into the inlet channel 241. One end of the second channel 322 is connected to an outlet port 312, and the other end of the second channel 322 is adapted to be connected to a second external pipeline to draw out the heat exchange medium in the outlet channel 242.

[0170] In this embodiment, by connecting the second connector 32 to the battery pack housing 4, the external pipeline can be connected to the first connector 31 through the second connector 32, so as to introduce or export the heat exchange medium; at the same time, the second connector 32 and the first connector 31 are detachably connected, which facilitates disassembly and maintenance when the first heat exchanger 2 is blocked.

[0171] In specific applications, the second connector 32 can be connected to the battery pack housing 4 by setting an installation port on the battery pack housing 4 and installing the second connector 32 at the installation port; or the second connector 32 can be machined at the end of the battery pack housing 4 after the battery pack housing 4 is processed; of course, other connection methods are also possible. Those skilled in the art can set it according to actual needs, and this application does not limit it.

[0172] Understandably, such as Figure 11As shown, the second connector 32 has a first channel 321 and a second channel 322. Both the first channel 321 and the second channel 322 have two ports. One end of the first channel 321 is adapted to communicate with the first external pipeline, and the other end of the first channel 321 is adapted to communicate with the liquid inlet 311 to introduce the heat exchange medium into the liquid inlet channel 241. One end of the second channel 322 is adapted to communicate with the liquid outlet 312, and the other end of the second channel 322 is adapted to communicate with the second external pipeline to draw out the heat exchange medium in the liquid outlet channel 242.

[0173] It should be noted that the second connector 32 and the first connector 31 are detachably connected, specifically by plugging, snapping, etc., so that the second connector 32 and the first connector 31 can be quickly assembled and disassembled. Those skilled in the art can make the settings according to the actual situation, and this application does not limit them.

[0174] like Figure 11 and Figure 12 As shown, in some embodiments of this application, the first connector 31 is further provided with a sealing part 313, which is located between the first channel 321 and the liquid inlet 311, and between the second channel 322 and the liquid outlet 312.

[0175] In this embodiment of the application, by providing a sealing part 313 between the first channel 321 and the liquid inlet 311, and between the second channel 322 and the liquid outlet 312, the first channel 321 and the liquid inlet 311 can be sealed, and the second channel 322 and the liquid outlet 312 can be sealed, ensuring that the heat exchange medium does not leak when flowing between the first connector 31 and the second connector 32, thus ensuring the airtightness of the battery pack.

[0176] In specific applications, the sealing part 313 is a rubber sealing ring provided at the opening of the liquid inlet 311 and the liquid outlet 312, so as to ensure that a quick seal can be formed when the first connector 31 and the second connector 32 are disassembled.

[0177] Alternatively, rubber sealing rings can be installed at the ports of the first channel 321 and the second channel 322.

[0178] like Figure 11 and Figure 12 As shown, in some embodiments of this application, the first connector 31 is provided with a second positioning part 314, the second connector 32 is provided with a third positioning part 323, and the second positioning part 314 and the third positioning part 323 are inserted into each other.

[0179] In this embodiment, the second positioning part 314 on the first connector 31 can be inserted with the third positioning part 323 on the second connector 32, thereby positioning the first connector 31 and the second connector 32 and improving the ease of installation.

[0180] In specific applications, the second positioning part 314 can be a positioning hole and the third positioning part 323 can be a positioning post, with the positioning post inserted into the positioning hole; or the second positioning part 314 can be a positioning post and the third positioning part 323 can be a positioning hole, with the positioning post inserted into the positioning hole; of course, other structures capable of forming a positioning can also be used. Those skilled in the art can make settings according to actual needs, and this application does not limit them.

[0181] like Figure 2 As shown, in some embodiments of this application, the electrical device further includes a control valve (not shown in the figure), which is connected to the connection assembly 3 and is used to control the flow rate of the heat exchange medium flowing into the first heat exchanger 2.

[0182] In this embodiment, the control valve can be connected to the connecting component 3 (specifically to the second connecting component 32) to control the flow rate of the heat exchange medium in the first channel 321, thereby controlling the flow rate of the heat exchange medium entering the first heat exchange plate 24. In other words, it can form independent control of the flow rate of the heat exchange medium in the first heat exchange component 2, thereby adjusting according to the heating status of the electrical component 1 and improving the operating efficiency of the first heat exchange component 2.

[0183] In specific applications, the control valve can be a solenoid valve, which is electrically connected to the controller. When the controller receives a signal that the temperature inside the electrical component 1 or the battery pack is too high, it controls the flow rate of the heat exchange medium in the first channel 321 to increase through the solenoid valve. When the controller receives a signal that the temperature is decreasing, it can control the flow rate of the heat exchange medium in the first channel 321 to decrease through the solenoid valve, so as to make reasonable use of the heat exchange medium circulation.

[0184] like Figure 15 and Figure 16 As shown, in some embodiments of this application, a battery pack is also proposed, including the electrical devices described in any of the above embodiments.

[0185] In this embodiment, the battery pack includes the electrical device described in any of the above embodiments, and thus has the beneficial effects of the electrical device described in any of the above embodiments, which will not be repeated here.

[0186] like Figure 15 and Figure 16As shown, in some embodiments of this application, the battery pack further includes a battery pack housing 4, which is provided with a battery compartment 41 and an electrical compartment 42. The battery compartment 41 is adapted to install a battery 5, and the electrical compartment 42 is adapted to install an electrical device.

[0187] In this embodiment of the application, by providing a battery compartment 41 and an electrical compartment 42 in the battery pack housing 4, the battery 5 and the electrical device can be installed respectively, thereby improving the safety of the battery pack.

[0188] In specific applications, the first heat exchanger 2 is disposed in the electrical compartment 42 and can extend into the battery compartment 41 to exchange heat with the battery 5; alternatively, a second heat exchanger 6 can be disposed in the battery compartment 41, and the second heat exchanger 6 is used to exchange heat with the battery 5.

[0189] like Figure 15 and Figure 16 As shown, in some embodiments of this application, the battery pack further includes a second heat exchanger 6, which is disposed inside the battery pack housing 4 and is capable of exchanging heat with the battery 5.

[0190] In this embodiment, the battery pack is further provided with a second heat exchanger 6, which can cool the battery 5, thereby forming independent cooling control that does not affect each other and improving the reliability of the battery pack.

[0191] It should be noted that the second heat exchanger 6 is located inside the battery pack housing 4. Specifically, it can be located only inside the battery compartment 41 to exchange heat with the battery 5; or it can be located in both the battery compartment 41 and the electrical compartment 42 to exchange heat with both the battery 5 and the electrical components 1. Those skilled in the art can configure it according to actual needs, and this application does not impose any restrictions on it.

[0192] In a specific application, the second heat exchanger 6 includes a second heat exchange plate 61 and a third connector 62. The second heat exchange plate 61 is located inside the battery pack housing 4, and the third connector 62 is installed on the side wall of the battery pack housing 4. The third connector 62 can input the external heat exchange medium into the second heat exchange plate 61 and output the heat exchange medium after heat exchange in the second heat exchange plate 61 to the external pipeline, thereby forming a cycle of heat exchange medium.

[0193] Understandably, the flow channel in the second heat exchange plate 61 can also be provided with a turbulence structure 201. The specific setting method can be the same as that of the turbulence structure 201 in the flow channel 20 of the first heat exchange plate 24, thereby increasing the heat exchange capacity of the second heat exchange element 6.

[0194] like Figure 15 and Figure 16 As shown, in some embodiments of this application, the heat exchange medium in the first heat exchanger 2 and the second heat exchanger 6 may be the same or different.

[0195] In this embodiment of the application, by setting the heat exchange working fluid in the first heat exchanger 2 and the second heat exchanger 6 to be the same or different, the flexibility of the setup can be improved and the installation can be made easier.

[0196] In specific applications, the first heat exchanger 2 and the second heat exchanger 6 can be arranged in parallel so that the heat exchange medium in both is the same; or they can be arranged independently so that the heat exchange medium in both can be the same or different.

[0197] The flow of the heat exchange medium within the battery pack is briefly described below:

[0198] The first flow path of the heat exchange medium is as follows: heat exchange medium in the vehicle thermal management system - first external pipeline - first channel 321 of the second connector 32 - liquid inlet hole 311 of the first connector 31 - liquid inlet channel 241 of the first heat exchange plate 24 - first flow section 251 of the manifold 25 at the first end 24a - first hole 253 - second flow section 252 - second flow section 252 of the manifold 25 at multiple flow channels 20-31b - first hole 253 - first flow section 251 - liquid outlet channel 242 - liquid outlet hole 312 of the first connector 31 - second channel 322 - second external pipeline, and then returns to the vehicle thermal management system through the second external pipeline to form a circulation of the heat exchange medium;

[0199] Meanwhile, the heat exchange medium also has a second flow path: heat exchange medium in the vehicle thermal management system - first external pipeline - third connector 62 - second heat exchange plate 61 - third connector 62 - second external pipeline, and then returns to the vehicle thermal management system through the second external pipeline to form a circulation of the heat exchange medium.

[0200] In some embodiments of this application, an electrical device is also proposed, including the electrical device as described in any of the above embodiments; or, a battery pack as described in any of the above embodiments.

[0201] In specific applications, electrical equipment can include laptops, pen-based computers, mobile computers, e-book players, portable telephones, portable fax machines, portable copiers, portable printers, stereo headphones, video recorders, LCD TVs, portable cleaners, portable CD players, mini CDs, transceivers, electronic notebooks, calculators, memory cards, portable recorders, radios, backup power supplies, motors, automobiles, motorcycles, electric bicycles, bicycles, ships, spacecraft, lighting fixtures, toys, game consoles, clocks, power tools, flashlights, cameras, large household batteries, and lithium-ion capacitors, etc.

[0202] Specifically, the vehicle can be a pure electric vehicle, a hybrid vehicle, a plug-in hybrid vehicle, a range-extended electric vehicle, etc.; in terms of purpose, the vehicle can be a motor vehicle, such as a passenger car, a truck, or a derivative thereof; it can also be a special vehicle, such as a tractor, an excavator, a fire truck, an ambulance, etc.; it can also be a water vehicle, such as an amphibious vehicle; or it can be a rail transit vehicle, such as a train, a subway, a tram, etc. Those skilled in the art can configure it according to actual needs, and this application does not impose any restrictions on it.

[0203] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example 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.

[0204] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrical device, characterized in that, include: A plurality of electrical components (1) and a first heat exchanger (2), the first heat exchanger (2) having a first heat exchange region (21) and a second heat exchange region (22), a portion of the plurality of electrical components (1) being disposed in the first heat exchange region (21) and a portion of the plurality of electrical components (1) being disposed in the second heat exchange region (22); The first heat exchanger (2) has a first surface (23), on which a plurality of electrical components (1) are disposed. The first surface (23) is at least partially recessed away from the electrical components (1) to form a groove (231) for mounting the electrical components (1).

2. The electrical device according to claim 1, characterized in that, The plurality of electrical components (1) include a first electrical component (11) and a second electrical component (12). The heat generation of the first electrical component (11) is greater than that of the second electrical component (12). The first electrical component (11) is disposed in the first heat exchange region (21), and the second electrical component (12) is disposed in the second heat exchange region (22). Both the first heat exchange region (21) and the second heat exchange region (22) are provided with flow channels (20). The flow channels (20) are used for the flow of heat exchange medium. The heat exchange medium can exchange heat with the first electrical component (11) and the second electrical component (12). in: The temperature of the heat exchange medium in the inner channel (20) of the first heat exchange zone (21) is lower than the temperature of the heat exchange medium in the inner channel (20) of the second heat exchange zone (22); Alternatively, the heat exchange area of ​​the flow channel (20) in the first heat exchange region (21) is greater than the heat exchange area of ​​the flow channel (20) in the second heat exchange region (22); Alternatively, the flow channel (20) within the first heat exchange region (21) may have a turbulence structure (201).

3. The electrical device according to claim 2, characterized in that, The first electrical component (11) includes at least one of a power control module (111) and a motor control module (112), and the second electrical component (12) includes at least one of a battery (121) and a power distribution module (122).

4. The electrical device according to claim 1, characterized in that, The plurality of electrical components (1) include a third electrical component (13) and a fourth electrical component (14). The heat generation of the third electrical component (13) is less than that of the fourth electrical component (14). The third electrical component (13) is disposed in the first heat exchange region (21), and the fourth electrical component (14) is disposed in the second heat exchange region (22). Both the first heat exchange region (21) and the second heat exchange region (22) are provided with flow channels (20). The flow channels (20) are used for the flow of heat exchange medium. The heat exchange medium can exchange heat with the third electrical component (13) and the fourth electrical component (14). The temperature of the heat exchange medium in at least a portion of the flow channels (20) within the first heat exchange zone (21) is lower than the temperature of the heat exchange medium in at least a portion of the flow channels (20) within the second heat exchange zone (22); Alternatively, the first heat exchange zone (21) is close to the inlet, and the second heat exchange zone (22) is far from the inlet.

5. The electrical device according to claim 4, characterized in that, The third electrical component (13) includes at least one of a battery (121) and a power distribution module (122), and the fourth electrical component (14) includes at least one of a power control module (111) and a motor control module (112).

6. The electrical device according to claim 3 or 5, characterized in that, The power control module (111) includes at least one of a power supply unit (1111), a power drive unit (1112), and a power control unit (1113), and the motor control module (112) includes at least one of a drive unit (1121), a capacitor unit (1122), an electric drive unit (1123), and an electric control unit (1124).

7. The electrical device according to claim 1, characterized in that, A first flow channel (202) is provided in the first heat exchange zone (21), and a second flow channel (203) is provided in the second heat exchange zone (22). Alternatively, a first flow channel (202) may be provided in the first heat exchange region (21), and a second flow channel (203) and part of the first flow channel (202) may be provided in the second heat exchange region (22).

8. The electrical device according to any one of claims 1-5 or claim 7, characterized in that, The electrical device further includes a connection assembly (3) which is detachably connected to the first heat exchanger (2) and is used to introduce and draw out the heat exchange medium from the first heat exchanger (2).

9. The electrical device according to claim 8, characterized in that, The electrical device also includes a flow valve connected to the connection assembly (3), which is used to control the flow rate of the heat exchange medium flowing into the first heat exchanger (2).

10. A battery pack, characterized in that, include: The electrical device as described in any one of claims 1-9.

11. The battery pack according to claim 10, characterized in that, The battery pack also includes a battery pack housing (4), which has a battery compartment (41) and an electrical compartment (42). The battery compartment (41) is adapted to install a battery (5), and the electrical compartment (42) is adapted to install the electrical device.

12. The battery pack according to claim 11, characterized in that, The battery pack also includes a second heat exchanger (6), which is located inside the battery pack housing (4) and can exchange heat with the battery (5).

13. The battery pack according to claim 12, characterized in that, The heat exchange medium in the first heat exchanger (2) may be the same as or different from that in the second heat exchanger (6).

14. An electrical appliance, characterized in that, include: The electrical apparatus as described in any one of claims 1-9; Or, the battery pack as described in any one of claims 10-13.

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