Heat dissipation device, motor controller, electric control assembly and vehicle

Abstract

The application provides a heat dissipation device, a motor controller, an electric control assembly and a vehicle. The heat dissipation device comprises a vaporization cavity, a liquid storage member and a heat conduction member. The liquid storage member is internally provided with a liquid storage cavity, the liquid storage cavity contains cooling medium, and the liquid storage cavity is in communication with the vaporization cavity. The vaporization cavity is suitable for vaporizing the cooling medium to form gaseous medium. The outside of the vaporization cavity is suitable for connecting a heating element. One end of the heat conduction member is connected with the heating element, and the other end of the heat conduction member is connected with the liquid storage member. In the instant of starting the vehicle, the heat generated by the heating element can be conducted to the liquid storage member through the heat conduction member, rapidly heating the cooling medium in the liquid storage cavity, rapidly melting the frozen cooling medium, smoothly vaporizing the cooling medium, making the whole heat dissipation system run, having a good heat dissipation effect on the heating element, and avoiding the problem of thermal runaway of the heating element.

Description

[0001] This application claims priority to Chinese Patent Application No. 2025208178843, filed on April 25, 2025, entitled "Heat Dissipation Device, Motor Controller, Electronic Control Assembly and Vehicle", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of cooling technology, and in particular to a heat dissipation device, a motor controller, an electronic control assembly, and a vehicle. Background Technology

[0003] Various heat-generating components in a vehicle's electronic control assembly generate significant heat during operation. Cooling devices are typically required to dissipate and cool these components, ensuring they maintain good electrical performance and normal operation. To improve heat dissipation efficiency, some vehicles are now employing phase-change cooling technology. This technology uses a circulating cooling medium that undergoes both vaporization and condensation processes to dissipate heat from the heat-generating components.

[0004] However, when a vehicle is cold-started in a low-temperature environment, the cooling medium in the heat dissipation device may freeze, preventing the phase change process of the cooling medium from being completed smoothly. If the vehicle is then powered on and started, the heating elements will heat up rapidly in a very short time, causing thermal runaway and seriously affecting the safety and reliability of the vehicle. Summary of the Invention

[0005] In view of this, this application provides a heat dissipation device, a motor controller, an electronic control assembly, and a vehicle, to at least solve the problem that heat dissipation devices in the prior art may fail to dissipate heat during cold starts of the vehicle.

[0006] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0007] This application provides a heat dissipation device, including a vaporization chamber, a liquid storage component, and a heat-conducting component;

[0008] The liquid storage device is provided with a liquid storage chamber, which contains a cooling medium, and the liquid storage chamber is connected to the vaporization chamber;

[0009] The vaporization chamber is adapted to vaporize the cooling medium to form a gaseous medium.

[0010] The exterior of the vaporization chamber is adapted to connect a heating element, one end of the heat-conducting element is connected to the heating element, and the other end of the heat-conducting element is connected to the liquid storage element.

[0011] Optionally, the heat-conducting element is connected to the outer surface of the liquid storage element; or, a portion of the heat-conducting element extends into the liquid storage cavity and is connected to the cavity wall of the liquid storage cavity.

[0012] Optionally, the vaporization chamber and the liquid storage element are stacked in a first direction.

[0013] Optionally, the heat-conducting element extends through the vaporization chamber and is connected to the liquid storage element; or, the heat-conducting element is located outside the vaporization chamber.

[0014] Optionally, the heat-conducting element is disposed along the first direction; or, a portion of the heat-conducting element is disposed along the first direction, and a portion of the heat-conducting element is disposed along a second direction, wherein the second direction intersects the first direction.

[0015] Optionally, the number of the heat-conducting elements is multiple.

[0016] Optionally, each of the heating elements is connected to at least two of the heat-conducting elements.

[0017] Optionally, the heat dissipation device further includes a condensation chamber; the condensation chamber is connected to the vaporization chamber, and the condensation chamber is adapted to condense the gaseous medium into a liquid medium; the liquid storage chamber is connected to the condensation chamber.

[0018] Optionally, there are multiple liquid storage chambers, and each liquid storage chamber corresponds to a bridge arm.

[0019] This application also provides a motor controller, including the heat dissipation device described in any of the preceding claims.

[0020] This application also provides an electronic control assembly, including the heat dissipation device described in any of the foregoing embodiments, or including the aforementioned motor controller.

[0021] This application also provides a vehicle that includes the aforementioned motor controller, or the aforementioned electronic control assembly.

[0022] Compared with existing technologies, the heat dissipation device, motor controller, electronic control assembly, and vehicle described in this application have the following advantages:

[0023] In the heat dissipation device of this application, one end of the heat-conducting component is connected to the heating element, and the other end of the heat-conducting component is connected to the liquid storage component. At the moment the vehicle starts, the heat generated by the heating element can be conducted to the liquid storage component through the heat-conducting component, thereby rapidly heating the cooling medium in the liquid storage cavity, causing the frozen cooling medium to melt quickly and flow smoothly. In this way, the cooling medium can be heated and vaporized smoothly, ensuring the smooth realization of the vaporization process of the cooling medium, thereby enabling the entire heat dissipation system to operate, achieving a good heat dissipation effect on the heating element, avoiding the problem of thermal runaway of the heating element, and thus ensuring the safety and reliability of the vehicle.

[0024] The motor controller, electronic control assembly, and vehicle described in this application have the same or similar advantages as the prior art and the aforementioned heat dissipation devices, which will not be elaborated here. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are intended to suit the interpretation of this application and do not constitute an undue limitation of this application. In the drawings:

[0026] Figure 1 This is a simplified schematic diagram of a heat dissipation device in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 101-Vaporization chamber, 102-Condensation chamber, 2-Heating element, 3-Liquid storage component, 31-First opening, 32-Second opening, 4-Heat-conducting component, 5-Porous body. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0031] It should be understood that the phrase "some embodiments" throughout the specification means that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, "some embodiments" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0032] The following detailed description of a heat dissipation device, motor controller, electronic control assembly, and vehicle provided in this application is illustrated with specific embodiments.

[0033] Reference Figure 1 This application provides a heat dissipation device, including a vaporization chamber 101, a liquid storage component 3, and a heat-conducting component 4. The liquid storage component 3 has a liquid storage chamber containing a cooling medium, and the liquid storage chamber is connected to the vaporization chamber 101. The vaporization chamber 101 is adapted to vaporize the cooling medium to form a gaseous medium. The exterior of the vaporization chamber 101 is adapted to connect a heating element 2. One end of the heat-conducting component 4 is connected to the heating element 2, and the other end of the heat-conducting component 4 is connected to the liquid storage component 3.

[0034] Specifically, the liquid storage component 3 can be any form such as a liquid storage tank, liquid storage plate, or liquid storage container. The liquid storage component 3 has a liquid storage cavity inside, which stores a cooling medium. The liquid storage cavity is connected to the vaporization cavity 101, and during the operation of the heat dissipation device, the liquid storage cavity can provide a cooling medium to the vaporization cavity 101.

[0035] Heating element 2 refers to various electronic components that generate heat during operation, such as power modules, sensors, drive modules, control modules, power supply modules, etc. Heating element 2 is connected to the outside of vaporization chamber 101. Heating element 2 can be directly connected to the outside of vaporization chamber 101 by means of welding, adhesive bonding, etc.

[0036] The vaporization chamber 101 contains a cooling medium. During the operation of the heating element 2, the heat generated by the heating element 2 can be conducted into the vaporization chamber 101. The cooling medium in the vaporization chamber 101 absorbs heat and its temperature rises. When the cooling medium reaches its own saturation temperature, it begins to evaporate and vaporize, forming a gaseous medium. In this process, a large amount of heat is absorbed, thus forming a relatively high-temperature gaseous medium, achieving the cooling and temperature reduction of the heating element 2. The cooling medium can be water or other refrigerants. In this embodiment, water is preferred because water has a high specific heat capacity and latent heat of vaporization. After evaporation and vaporization, it forms high-temperature water vapor, which is the gaseous medium.

[0037] In the prior art, when a vehicle is cold-started in a low-temperature environment, the cooling medium in the heat dissipation device may freeze. After freezing, the volume of the cooling medium expands, which may cause the side of the cooling medium closer to the heating element 2 to be heated and vaporized, while the side of the cooling medium farther away from the heating element 2 remains frozen and cannot be vaporized. As a result, the phase change process of the cooling medium cannot be successfully achieved. If the vehicle is powered on and started at this time, the heating element 2 will heat up rapidly in a very short time, causing thermal runaway, which seriously affects the safety and reliability of the vehicle. The heat dissipation device in this embodiment includes a heat-conducting component 4. One end of the heat-conducting component 4 is connected to the heating element 2, and the other end of the heat-conducting component 4 is connected to the liquid storage component 3. At the moment the vehicle starts, the heat generated by the heating element 2 can be conducted to the liquid storage component 3 through the heat-conducting component 4, thereby rapidly heating the cooling medium in the liquid storage cavity, causing the frozen cooling medium to melt quickly and flow smoothly. In this way, the cooling medium can be heated and vaporized smoothly, ensuring the smooth realization of the vaporization process of the cooling medium, thereby enabling the entire heat dissipation system to operate, achieving a good heat dissipation effect on the heating element 2, avoiding the problem of thermal runaway of the heating element 2, and thus ensuring the safety and reliability of the vehicle.

[0038] In some embodiments of this application, the heat-conducting element 4 can be a strip type or a column type. The heat-conducting element 4 can be made of metal materials, such as copper or aluminum, which have a high thermal conductivity and can quickly conduct the heat generated by the heating element 2 to the liquid storage element 3.

[0039] In some embodiments of this application, the heat dissipation device may further include a porous body 5; the porous body 5 is disposed in the vaporization chamber 101. The porous body 5 has a porous structure, through which the cooling medium in the vaporization chamber 101 can be adsorbed. The porous body 5 can be a material with a capillary structure, such as sintered metal powder materials, fiber materials, etc.; the porous body 5 can also be a metal-based porous material, such as porous copper, porous aluminum, metal foam, etc.; the porous body 5 can also be a ceramic-based porous material, such as alumina ceramic, boron nitride ceramic, etc.; the porous body 5 can also be a carbon-based porous material, such as activated carbon, graphene, etc.; the porous body 5 can also be a polymer-based porous material, such as polyurethane foam, polyimide porous material, etc. The specific type is not limited in this embodiment.

[0040] Optionally, in some embodiments of this application, the heat-conducting element 4 is connected to the outer surface of the liquid storage element 3. For example, the heat-conducting element 4 can be welded to the outer surface of the liquid storage element 3. In this embodiment, it is not necessary to process other connection structures on the liquid storage element 3; the heat-conducting element 4 can be directly welded to the outer surface of the liquid storage element 3, which simplifies the connection between the heat-conducting element 4 and the liquid storage element 3 and facilitates the processing of the heat dissipation device.

[0041] Or, refer to Figure 1In some embodiments of this application, a portion of the heat-conducting element 4 extends into the liquid storage cavity and connects to the cavity wall. For example, the heat-conducting element 4 can be welded to the cavity wall of the liquid storage cavity. In this embodiment, a through hole is provided on the surface of the liquid storage element 3 for the heat-conducting element 4 to pass through. A portion of the heat-conducting element 4 passes through the through hole and extends into the liquid storage cavity, connecting to the cavity wall. The extension of the heat-conducting element 4 into the liquid storage cavity allows it to contact the cooling medium within the cavity. At the moment the vehicle starts, the heat generated by the heating element 2 can be conducted through the heat-conducting element 4 to the cavity wall of the liquid storage cavity and also to the cooling medium, allowing the heat-conducting element 4 to rapidly heat the surrounding cooling medium. This enables the ice in the liquid storage cavity to melt more quickly, allowing the cooling medium to flow smoothly.

[0042] Optionally, refer to Figure 1 In some embodiments of this application, the vaporization chamber 101 and the liquid storage component 3 are stacked in the first direction Z. This arrangement simplifies the circulation path of the cooling medium and facilitates the fabrication of the heat dissipation device. For example, the liquid storage chamber has a first opening 31 on one side and a second opening 32 on the other side, through which the liquid storage chamber and the vaporization chamber 101 are connected.

[0043] Optionally, refer to Figure 1 In some embodiments of this application, the heat-conducting element 4 penetrates the vaporization chamber 101 and is connected to the liquid storage element 3. That is, the heat-conducting element 4 is disposed inside the vaporization chamber 101 and connected to the liquid storage element 3. With this configuration, the shell forming the vaporization chamber 101 needs to be provided with a through hole suitable for the heat-conducting element 4 to pass through, so that the heat-conducting element 4 is disposed inside the vaporization chamber 101 through the through hole.

[0044] Based on the stacked arrangement of vaporization chamber 101 and liquid storage component 3, heat conduction component 4 runs through vaporization chamber 101, which helps to shorten the layout path of heat conduction component 4, improve the timeliness of heat transfer of heat conduction component 4, and also helps to control the length of heat conduction component 4, thereby saving materials and facilitating the lightweight design of heat dissipation device.

[0045] The heat-conducting component 4 can be arranged in the vaporization chamber 101 along the first direction Z, or it can be arranged in the vaporization chamber 101 along a direction that forms an angle with the first direction Z. This is equivalent to fixing the heat-conducting component 4 in the vaporization chamber 101 at an angle. The specific arrangement can be flexibly set according to actual needs.

[0046] The heat-conducting component 4 is located outside the vaporization chamber 101 and will not affect the original structure of the vaporization chamber 101, thereby helping to ensure the airtightness of the vaporization chamber 101 and preventing leakage from the vaporization chamber 101.

[0047] Optionally, in some embodiments of this application, the heat-conducting element 4 is disposed outside the vaporization chamber 101. For example, the heat-conducting element 4 can be uniformly disposed on the outer periphery of the vaporization chamber 101. One end of the heat-conducting element 4 is connected to the heating element 2, and the other end of the heat-conducting element 4 is connected to the liquid storage component 3. It should be noted that, in this case, to facilitate the connection between the heat-conducting element 4 and the heating element 2, the heat-conducting element 4 can be configured to have a bent portion. The bent portion can avoid the vaporization chamber 101, so as to facilitate the connection between the heat-conducting element 4 and the heating element 2 and the liquid storage component 3.

[0048] The heat-conducting component 4 can be arranged outside the vaporization chamber 101 along the first direction Z, or it can be arranged outside the vaporization chamber 101 along a direction that forms an angle with the first direction Z, which is equivalent to tilting the heat-conducting component 4 outside the vaporization chamber 101. The specific arrangement can be flexibly set according to actual needs.

[0049] Optionally, in some embodiments of this application, the heat-conducting element 4 is disposed along the first direction Z. In this case, the heat-conducting element 4 can be disposed through the vaporization chamber 101, with one end of the heat-conducting element 4 connected to the heating element 2 and the other end connected to the liquid storage element 3.

[0050] Alternatively, in some embodiments of this application, a portion of the heat-conducting element 4 is disposed along the first direction Z, and a portion of the heat-conducting element 4 is disposed along the second direction. The second direction intersects the first direction, and can be perpendicular to or form an angle with the first direction. The specific arrangement can be flexibly configured according to actual needs. The fact that a portion of the heat-conducting element 4 is disposed along the first direction Z and a portion along the second direction means that the heat-conducting element 4 has a bent portion. In this case, the heat-conducting element 4 can be positioned outside the vaporization chamber 101, not penetrating it. The bent portion can avoid the location of the vaporization chamber 101, making it easier to connect the heat-conducting element 4 to the heating element 2 and the liquid storage element 3.

[0051] Optionally, in some embodiments of this application, the number of heat-conducting elements 4 can be set to multiple. Multiple heat-conducting elements 4 help to improve the heat transfer effect, thereby facilitating the rapid melting of the cooling medium in the liquid storage cavity. Multiple heat-conducting elements 4 can be uniformly arranged between the heating element 2 and the liquid storage 3. For example, multiple heat-conducting elements 4 can be arranged in an array between the heating element 2 and the liquid storage 3, thus improving the uniformity of heat conduction by the heat-conducting elements 4 and facilitating temperature consistency across different parts of the liquid storage 3. Multiple heat-conducting elements 4 can also be non-uniformly arranged between the heating element 2 and the liquid storage 3. For example, the spacing between two adjacent heat-conducting elements 4 can be the same or different.

[0052] Optionally, in some embodiments of this application, each heating element 2 is connected to at least two heat-conducting elements 4, which can ensure that the heat generated by the heating element 2 is quickly conducted to the liquid storage element 3, thereby quickly melting the cooling medium in the liquid storage element 3.

[0053] Optionally, in some embodiments of this application, a condensation chamber 102 is further included; the condensation chamber 102 is connected to the vaporization chamber 101, and the condensation chamber 102 is adapted to condense the gaseous medium into a liquid medium; the liquid storage chamber is connected to the condensation chamber 102.

[0054] Specifically, the condensing chamber 102 is connected to the vaporization chamber 101. The gaseous medium formed by vaporization in the vaporization chamber 101 flows from the connection point between the condensing chamber 102 and the vaporization chamber 101 into the condensing chamber 102. The temperature inside the condensing chamber 102 is lower, and the gaseous medium condenses to form a liquid medium. This process releases a large amount of heat, resulting in a relatively cool liquid medium. Continuing with the example using water as the cooling medium, the low-temperature water absorbs heat and evaporates to form high-temperature water vapor. This high-temperature water vapor flows into the condensing chamber 102 and condenses to form low-temperature liquid water, which is the liquid medium. The liquid medium formed in the condensing chamber 102 flows back to the vaporization chamber 101 from the connection point between the condensing chamber 102 and the vaporization chamber 101 for the next vaporization cycle, thus achieving efficient cooling of the heat dissipation device.

[0055] The liquid storage chamber is connected to the condensation chamber 102. If the amount of liquid medium formed by condensation in the condensation chamber 102 is too large, some of the liquid medium will flow into the liquid storage chamber for temporary storage.

[0056] In some embodiments, a cooling component is connected to the outside of the condensing cavity 102. The cooling component can transfer heat from the condensing cavity 102 to the external environment or to the cooling medium within the cooling component itself, thereby keeping the condensing cavity 102 at a low temperature. The cooling component can be of various structures such as a cooling pipe, a water-cooled plate, or a cooling fin; the specific type is not limited in this embodiment.

[0057] In some embodiments, the heating element 2 can be connected to the side of the vaporization chamber 101 away from the condensation chamber 102, one end of the heat-conducting element 4 is connected to the heating element 2, and the other end of the heat-conducting element 4 is inserted into the vaporization chamber 101 and connected to the cavity wall of the vaporization chamber 101.

[0058] In some embodiments, the vaporization chamber 101, the condensation chamber 102, and the liquid storage component 3 are stacked in the first direction Z. This arrangement simplifies the circulation path of the cooling medium and facilitates the fabrication of the heat dissipation device. For example, the liquid storage chamber has a first opening 31 on one side and a second opening 32 on the other side, allowing communication between the liquid storage chamber and the vaporization chamber 101 and the condensation chamber 102.

[0059] Optionally, in some embodiments of this application, the number of liquid storage chambers is multiple, and each liquid storage chamber corresponds to one bridge arm. The number of liquid storage chambers being multiple means that the number of liquid storage chambers can be two, three, or more; the specific number is not limited in this embodiment.

[0060] For example, the electronic control assembly includes three bridge arms: U, V, and W. When the electronic control assembly is vertically installed inside the vehicle, the cooling medium tends to concentrate in the lower part of the assembly under the influence of gravity. This may result in a situation where the lower part of the assembly has higher heat dissipation efficiency and the upper part has lower heat dissipation efficiency, leading to differences in the heat dissipation effects of the three bridge arms. In this embodiment, three liquid storage chambers can be provided, each corresponding to one of the three bridge arms (U, V, and W). This allows for targeted heat dissipation and cooling of each bridge arm, helping to improve the problem of differences in the heat dissipation effects of the three bridge arms.

[0061] The number of heat dissipation devices can be one, and each heat dissipation device includes three independent liquid storage chambers.

[0062] This application also provides a motor controller, which includes the heat dissipation device of any of the foregoing embodiments. The motor controller described in this application has at least the following advantages:

[0063] The heat dissipation device in this application includes a heat-conducting component 4. One end of the heat-conducting component 4 is connected to the heating element 2, and the other end of the heat-conducting component 4 is connected to the liquid storage chamber. At the moment the vehicle starts, the heat generated by the heating element 2 can be conducted to the liquid storage chamber 3 through the heat-conducting component 4, thereby rapidly heating the cooling medium in the liquid storage chamber, causing the frozen cooling medium to melt quickly and flow smoothly. In this way, the cooling medium can be heated and vaporized smoothly, ensuring the smooth realization of the phase change process of the cooling medium, thereby enabling the entire heat dissipation system to operate, achieving a good heat dissipation effect on the heating element 2, avoiding the problem of thermal runaway of the heating element 2, and thus contributing to the safety and reliability of the motor controller.

[0064] This application also provides an electronic control assembly, which includes the heat dissipation device of any of the foregoing embodiments, or the motor controller of the foregoing embodiments, thereby improving the safety and reliability of the electronic control assembly.

[0065] This application also provides a vehicle, which includes the electronic control assembly of the foregoing embodiments, or the motor controller of the foregoing embodiments. For example, in this application embodiment, the vehicle may include a pure electric vehicle, a hybrid vehicle, a range-extended vehicle, a gasoline vehicle, etc. The type of vehicle may also include small cars, mid-size cars, sedans, trucks, trailers, CDVs (Car Derived Vans), MPVs (Multi-Purpose Vehicles), SUVs (Sport Utility Vehicles), etc. This application embodiment does not limit the specific type of vehicle.

[0066] In summary, this application provides a heat dissipation device, including a vaporization chamber 101, a condensation chamber 102, a liquid storage component 3, a heating element 2, and a heat-conducting component 4. The liquid storage component 3 has a liquid storage chamber containing a cooling medium, and the liquid storage chamber is connected to both the vaporization chamber 101 and the condensation chamber 102. The condensation chamber 102 is connected to the vaporization chamber 101. The vaporization chamber 101 is adapted to vaporize the cooling medium to form a gaseous medium, and the condensation chamber 102 is adapted to condense the gaseous medium to form a liquid medium. The heating element 2 is connected to the side of the vaporization chamber 101 away from the liquid storage component 3. One end of the heat-conducting component 4 is connected to the heating element 2, and the other end of the heat-conducting component 4 is connected to the liquid storage component 3.

[0067] In some embodiments, the heat-conducting element 4 is connected to the outer surface of the liquid storage element 3; or, a portion of the heat-conducting element 4 extends into the liquid storage cavity and is connected to the cavity wall of the liquid storage cavity.

[0068] In some embodiments, the vaporization chamber 101, the liquid storage component 3, and the condensation chamber 102 are stacked in a first direction.

[0069] In some embodiments, the heat-conducting element 4 passes through the vaporization chamber 101 and is connected to the liquid storage element 3; or, the heat-conducting element 4 is disposed outside the vaporization chamber 101.

[0070] In some embodiments, the heat-conducting element 4 is disposed along a first direction; or, a portion of the heat-conducting element 4 is disposed along the first direction and a portion of the heat-conducting element 4 is disposed along a second direction, wherein the second direction intersects the first direction.

[0071] In some embodiments, there are multiple heat-conducting elements 4, which are uniformly arranged between the heating element 2 and the liquid storage element 3.

[0072] In some embodiments, each heating element 2 is connected to at least two heat-conducting elements 4. This application also provides a motor controller including the heat dissipation device described in any of the foregoing embodiments.

[0073] This application also provides an electronic control assembly, including the heat dissipation device described in any of the foregoing embodiments, or including the aforementioned motor controller.

[0074] This application also provides a vehicle that includes the aforementioned motor controller, or the aforementioned electronic control assembly.

[0075] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0076] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A heat dissipation device, characterized in that, Includes vaporization chamber, liquid storage component, and heat conduction component; The liquid storage device is provided with a liquid storage chamber, which contains a cooling medium, and the liquid storage chamber is connected to the vaporization chamber; The vaporization chamber is adapted to vaporize the cooling medium to form a gaseous medium. The exterior of the vaporization chamber is adapted to connect a heating element, one end of the heat-conducting element is connected to the heating element, and the other end of the heat-conducting element is connected to the liquid storage element.

2. The heat dissipation device according to claim 1, characterized in that, The heat-conducting element is connected to the outer surface of the liquid storage element; or, a portion of the heat-conducting element extends into the liquid storage cavity and is connected to the cavity wall of the liquid storage cavity.

3. The heat dissipation device according to claim 1 or 2, characterized in that, The vaporization chamber and the liquid storage component are stacked in a first direction.

4. The heat dissipation device according to claim 3, characterized in that, The heat-conducting component extends through the vaporization chamber and is connected to the liquid storage component; or, the heat-conducting component is located outside the vaporization chamber.

5. The heat dissipation device according to claim 4, characterized in that, The heat-conducting element is disposed along the first direction; or, a portion of the heat-conducting element is disposed along the first direction, and a portion of the heat-conducting element is disposed along a second direction, wherein the second direction intersects the first direction.

6. The heat dissipation device according to any one of claims 1-5, characterized in that, The number of heat-conducting components is multiple.

7. The heat dissipation device according to claim 6, characterized in that, Each of the heating elements is connected to at least two of the heat-conducting elements.

8. The heat dissipation device according to any one of claims 1-7, characterized in that, It also includes a condensation chamber; The condensation chamber is connected to the vaporization chamber, and the condensation chamber is adapted to condense the gaseous medium into a liquid medium; the liquid storage chamber is connected to the condensation chamber.

9. The heat dissipation device according to any one of claims 1-8, characterized in that, There are multiple liquid storage chambers, and each liquid storage chamber corresponds to a bridge arm.

10. A motor controller, characterized in that, Includes the heat dissipation device as described in any one of claims 1-9.

11. An electronic control assembly, characterized in that, It includes the heat dissipation device according to any one of claims 1-9, or the motor controller according to claim 10.

12. A vehicle, characterized in that, It includes the motor controller of claim 10, or the electronic control assembly of claim 11.

Images