Power module heat dissipation assembly, controller and vehicle

Abstract

The utility model discloses a power module heat dissipation assembly, a controller and a vehicle. The power module heat dissipation assembly comprises a power module; a first bottom plate; the second bottom plate is arranged opposite to the first bottom plate, the power module is arranged between the first bottom plate and the second bottom plate, and at least one of the two opposite sides of the power module is welded to the first bottom plate or the second bottom plate. According to the power module heat dissipation assembly of the utility model, at least one of the two opposite sides of the power module is welded on the first bottom plate or the second bottom plate, and sealing is performed through welding, so that the heat dissipation efficiency and safety can be improved, the use of parts such as screws and sealing rings is reduced, the assembly efficiency is improved, and the assembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation design of power modules, and more specifically, to a power module heat dissipation component, a controller and a vehicle. Background Art

[0002] Existing power modules usually use thermally conductive silicone ester coated on both sides of the module, which is installed between two layers of heat dissipation water channels to achieve module heat dissipation. Heat dissipation is achieved through the contact between the thermally conductive silicone ester and the water cooling plate. Its heat dissipation efficiency is closely related to the thermal resistance and heat transfer rate of the heat dissipation substrate, thermally conductive silicone ester, and the water cooling plate, resulting in low heat dissipation efficiency. Utility Model Content

[0003] One purpose of the utility model is to provide a new technical solution for a power module heat dissipation component, a controller and a vehicle, which can at least solve the problems of low heat dissipation efficiency, many parts and complicated assembly in the prior art.

[0004] The utility model provides a power module heat dissipation component, comprising: a power module; a first base plate; a second base plate, wherein the second base plate is arranged opposite to the first base plate, the power module is arranged between the first base plate and the second base plate, and at least one of the two opposite sides of the power module is welded to the first base plate or the second base plate.

[0005] Optionally, two opposite sides of the power module are welded to the first bottom plate and the second bottom plate respectively, and the first bottom plate, the second bottom plate and the power module are sealed and connected to form a structural member.

[0006] Optionally, the power module heat dissipation assembly also includes: a first cover plate, which is arranged on a side of the first base plate facing away from the power module, the first cover plate is sealed and connected to the first base plate, the first cover plate is provided with a first accommodating cavity, and the first cover plate is provided with a water inlet and a water outlet; a first heat dissipation element, which is arranged in the first accommodating cavity, and two opposite side surfaces of the first heat dissipation element are respectively sealed and connected to the first base plate and the first cover plate, a first heat dissipation channel is provided in the first heat dissipation element, and the first heat dissipation channel is respectively connected to the water inlet and the water outlet to dissipate heat from the power module.

[0007] Optionally, two opposite side surfaces of the power module are welded and sealed to the first bottom plate and the second bottom plate respectively.

[0008] Optionally, two opposite side surfaces of the first heat dissipation element are welded and sealed to the first bottom plate and the first cover plate respectively.

[0009] Optionally, the first heat sink is a heat sink fin, which includes a first fin body and a second fin body, and the first fin body and the second fin body are stacked, wherein the first fin body is sealed to the first cover plate, and the second fin body is sealed to the first base plate, and the first heat dissipation channel is provided in the first fin body and the second fin body.

[0010] Optionally, the power module heat dissipation assembly also includes: a second cover plate, a second accommodating cavity is provided in the second cover plate; a second heat sink, the second heat sink is provided in the second accommodating cavity, and the opposite sides of the second heat sink are respectively sealed and connected to the second cover plate and the second base plate, the second heat sink is provided with a second heat dissipation channel, the first base plate and the second base plate are provided with a first channel and a second channel interconnected, the first channel is respectively connected to the water inlet and the second heat dissipation channel, and the second channel is respectively connected to the water outlet and the second heat dissipation channel.

[0011] Optionally, two opposite sides of the second heat dissipation element are welded and sealed to the second bottom plate and the second cover plate respectively.

[0012] Optionally, the second heat sink and the first heat sink are the same structural component.

[0013] Optionally, the second cover plate cooperates with the first cover plate to package the first heat sink, the first base plate, the power module, the second base plate and the second heat sink into one structural component.

[0014] Optionally, the first base plate is provided with a first connecting column and a second connecting column, the second base plate is provided with a third connecting column and a fourth connecting column, the first connecting column corresponds to the third connecting column and is welded and sealed to form the first channel, the second connecting column corresponds to the fourth connecting column and is welded and sealed to form the second channel.

[0015] Optionally, a central axis of the water inlet does not coincide with a central axis of the first channel; and / or a central axis of the water outlet does not coincide with a central axis of the second channel.

[0016] Optionally, the first cover plate, the second cover plate, the first bottom plate, and the second bottom plate are respectively one of a copper plate, an aluminum plate, a copper-aluminum composite material plate, and a copper-aluminum transition plate.

[0017] A second aspect of the present invention provides a controller, comprising the power module heat dissipation assembly described in the above embodiment.

[0018] A third aspect of the present invention provides a vehicle, comprising the controller described in the above embodiment.

[0019] The power module heat dissipation assembly of the utility model welds at least one of the two opposite sides of the power module to the first base plate or the second base plate, and seals by welding, which can improve the heat dissipation efficiency and safety, reduce the use of parts such as screws and sealing rings, improve assembly efficiency, and reduce assembly difficulty.

[0020] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0022] Figure 1 is a structural exploded diagram of a power module heat dissipation assembly according to an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the condensed water flow direction of the power module heat dissipation assembly according to an embodiment of the utility model;

[0024] Figure 3 is a cross-sectional view of a power module heat dissipation assembly according to an embodiment of the utility model;

[0025] Figure 4 is a partial cross-sectional view of a power module heat dissipation assembly according to an embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of a first heat sink of a power module heat sink assembly according to an embodiment of the utility model;

[0027] Figure 6 It is a structural schematic diagram of a power module heat dissipation assembly according to an embodiment of the utility model;

[0028] Figure 7 is another structural schematic diagram of a power module heat dissipation assembly according to an embodiment of the utility model;

[0029] Figure 8 is another structural schematic diagram of a power module heat dissipation assembly according to an embodiment of the utility model;

[0030] Fig. 9 is another structural schematic diagram of a power module heat dissipation assembly according to an embodiment of the utility model;

[0031] Fig.10 is another structural schematic diagram of a power module heat dissipation assembly according to an embodiment of the utility model;

[0032] Fig.11is another structural schematic diagram of a power module heat dissipation assembly according to an embodiment of the utility model;

[0033] Fig.12 It is another structural schematic diagram of the power module heat dissipation assembly according to an embodiment of the utility model.

[0034] Reference numerals:

[0035] Power module heat dissipation assembly 100;

[0036] Power module 10;

[0037] A first bottom plate 20; a first connecting column 21; a second connecting column 22;

[0038] A second bottom plate 30; a third connecting column 31; a fourth connecting column 32;

[0039] First cover plate 40; water inlet 41; water outlet 42; first accommodating chamber 43;

[0040] A first heat sink 50; a first fin body 51; a second fin body 52; a first heat dissipation channel 53;

[0041] A second heat dissipation element 60; a second heat dissipation channel 61;

[0042] A second cover plate 70;

[0043] A first channel 81; a second channel 82;

[0044] Solder 91; water inlet pipe 92; water outlet pipe 93. DETAILED DESCRIPTION

[0045] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0046] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0047] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0048] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0049] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0050] In the specification and claims of the utility model, if the term "first" or "second" is involved, it may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the related objects are in an "or" relationship.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" involved should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] The power module heat dissipation assembly 100 according to the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0054] like Figures 1 to 3 As shown, the power module heat dissipation assembly 100 according to the embodiment of the present utility model includes a power module 10 , a first base plate 20 and a second base plate 30 .

[0055] Specifically, the second base plate 30 is arranged opposite to the first base plate 20 , the power module 10 is disposed between the first base plate 20 and the second base plate 30 , and at least one of the two opposite sides of the power module 10 is welded to the first base plate 20 or the second base plate 30 .

[0056] In other words, see Figures 1 to 3The power module heat dissipation assembly 100 according to the embodiment of the utility model is mainly composed of a power module 10, a first base plate 20 and a second base plate 30, wherein Figure 1 and Figure 3 The second base plate 30 is arranged opposite to the first base plate 20, and the power module 10 is installed between the first base plate 20 and the second base plate 30. At least one of the two opposite sides of the power module 10 can be welded to the first base plate 20 or the second base plate 30. Sealing by welding can improve heat dissipation efficiency and safety, reduce the use of parts such as screws and sealing rings, improve assembly efficiency, and reduce assembly difficulty.

[0057] According to an embodiment of the present invention, two opposite sides of the power module 10 are respectively welded to the first bottom plate 20 or the second bottom plate 30. The first bottom plate 20, the second bottom plate 30 and the power module 10 are sealed and connected to form a structural member.

[0058] That is, see Figures 1 to 3 , the two opposite sides of the power module 10 can be connected to the first base plate 20 and the second base plate 30 by double-sided welding. The power module 10 is welded between the first base plate 20 and the second base plate 30 by double-sided welding, and then the whole package is performed to ensure that the structure is more stable and the reliability is higher. At the same time, the welding seal can save the sealing parts such as the sealing ring, and the sealing is good without the risk of leakage. The first base plate 20, the second base plate 30 and the power module 10 can be sealed and connected, and form a structural part, which is easy to assemble and has low assembly process requirements, which is conducive to improving production efficiency and facilitating automated installation.

[0059] According to an embodiment of the utility model, the power module heat dissipation assembly 100 further includes a first cover plate 40 and a first heat sink 50. Specifically, the first cover plate 40 is arranged on the side of the first base plate 20 facing away from the power module 10. The first cover plate 40 is sealed and connected to the first base plate 20. The first cover plate 40 is provided with a first accommodating cavity 43. The first cover plate 40 is provided with a water inlet 41 and a water outlet 42. The first heat sink 50 is arranged in the first accommodating cavity 43, and the two opposite sides of the first heat sink 50 are respectively sealed and connected to the first base plate 20 and the first cover plate 40. A first heat dissipation channel 53 is provided in the first heat sink 50. The first heat dissipation channel 53 is respectively connected to the water inlet 41 and the water outlet 42 to dissipate heat from the power module 10.

[0060] In other words, see Figure 1 and Figure 3The power module heat dissipation assembly 100 also includes a first cover plate 40 and a first heat sink 50, wherein the first cover plate 40 is installed on the side of the first base plate 20 facing away from the power module 10, and the first cover plate 40 is sealed and connected to the first base plate 20. The first cover plate 40 is provided with a first accommodating cavity 43, and the first cover plate 40 is provided with a water inlet 41 and a water outlet 42. The water inlet 41 is connected to the water inlet pipe 92, and the water outlet 42 is connected to the water outlet pipe 93. By providing the water inlet 41 and the water outlet 42 on the first cover plate 40, it is convenient to introduce or export the circulating condensed water in the first cover plate 40 (refer to the flow direction of the condensed water). Figure 2 direction of the arrow).

[0061] See also Figure 1 and Figure 3 , the first heat sink 50 is installed in the first accommodating cavity 43, and the two opposite sides of the first heat sink 50 are sealed and connected to the first base plate 20 and the first cover plate 40 respectively. The first heat sink 50 is sealed and connected to the first base plate 20 and the first cover plate 40 to improve the sealing efficiency and reduce the risk of leakage. A first heat dissipation channel 53 is arranged in the first heat sink 50, and the first heat dissipation channel 53 is connected to the water inlet 41 and the water outlet 42 respectively. The water inlet 41 and the water outlet 42 can be located on opposite sides of the first heat sink 50 respectively. Condensed water is introduced into the first heat dissipation channel 53 through the water inlet 41, and then discharged through the water outlet 42, so as to realize rapid heat dissipation of the power module 10. The heat dissipation efficiency is not affected by factors such as materials or thermal resistance, thereby improving the heat dissipation efficiency and reliability of the product.

[0062] In the present invention, the first cover plate 40, the first base plate 20 and the second base plate 30 can be made of copper, aluminum, copper-aluminum composite materials or copper-aluminum transition plates, etc., which further saves costs without reducing heat dissipation performance.

[0063] Therefore, according to the power module heat dissipation assembly 100 of the embodiment of the utility model, the power module 10 is directly double-sidedly welded on the first base plate 20 and the second base plate 30, and the first base plate 20, the power module 10 and the second base plate 30 are sealed and connected to form a structural member, with fewer parts, simple assembly, and low assembly process requirements, which is conducive to improving production efficiency and facilitating automated installation. By setting the first heat sink 50, the opposite side surfaces of the first heat sink 50 are respectively sealed and connected to the first base plate 20 and the first cover plate 40, and the first heat sink 50 is used to water-cool the power module 10, the heat dissipation efficiency is high, and it is not affected by other factors. At the same time, parts such as sealing rings are omitted, there are fewer parts, and there is no risk of leakage.

[0064] In some specific embodiments of the present invention, two opposite side surfaces of the power module 10 are welded and sealed to the first bottom plate 20 and the second bottom plate 30 respectively.

[0065] That is, see Figure 3 The two opposite sides of the power module 10 can be welded and sealed with the first base plate 20 and the second base plate 30 respectively through the solder 91. The power module 10 is welded between the first base plate 20 and the second base plate 30 by double-sided welding, and then the whole package is performed to ensure a more stable structure and higher reliability. At the same time, welding sealing can save sealing parts such as sealing rings, and has good sealing performance without leakage risk.

[0066] According to an embodiment of the present invention, two opposite side surfaces of the first heat dissipation element 50 are welded and sealed to the first bottom plate 20 and the first cover plate 40 respectively.

[0067] In other words, see Figure 3 The two opposite sides of the first heat sink 50 can be welded and sealed with the first bottom plate 20 and the first cover plate 40 by solder 91. The welding and sealing method can help improve the heat conduction efficiency, and the welding has a longer service life and better heat dissipation efficiency than the heat conductive material.

[0068] According to one embodiment of the utility model, the first heat sink 50 is a heat sink fin, which includes a first fin body 51 and a second fin body 52, and the first fin body 51 and the second fin body 52 are stacked, wherein the first fin body 51 is sealed to the first cover plate 40, and the second fin body 52 is sealed to the first base plate 20, and the first heat dissipation channel 53 is provided in the first fin body 51 and the second fin body 52.

[0069] That is, see Figure 3 and Figure 5 The first heat sink 50 can be a heat sink fin, which is mainly composed of a first fin body 51 and a second fin body 52. ​​The first fin body 51 and the second fin body 52 are stacked to divide the heat sink fin into two layers, further increasing the contact surface of the water flow, making the heat dissipation area larger, which is conducive to further improving the heat dissipation effect. Among them, the first fin body 51 is sealed and connected to the first cover plate 40, and the second fin body 52 is sealed and connected to the first base plate 20, which improves the sealing of the first heat sink 50 with the first cover plate 40 and the first base plate 20 to prevent leakage. The first heat dissipation channel 53 is provided in the first fin body 51 and the second fin body 52, and the water inlet 41 and the water outlet 42 can be connected to the first heat dissipation channel 53 of the first fin body 51 and the second fin body 52 respectively, ensuring that the condensed water circulates and dissipates heat to the power module 10 in the first heat dissipation channel 53, thereby improving the heat dissipation efficiency.

[0070] In the present invention, the heat dissipation fins may be in a corrugated shape or in a pin-fin shape. Or a combination of the two may be used. The cross-sections of the first fin body 51 and the second fin body 52 in the heat dissipation fins may be designed to be rectangular, arc-shaped, elliptical, diamond-shaped or other suitable shapes. The specific shapes of the cross-sections of the first fin body 51 and the second fin body 52 may be reasonably selected according to actual needs, and will not be described in detail in the present invention.

[0071] According to an embodiment of the present invention, the power module heat dissipation assembly 100 further includes a second cover plate 70 and a second heat dissipation member 60 .

[0072] Specifically, Figure 1 and Figure 3 As shown, a second accommodating cavity is provided in the second cover plate 70. The second heat sink 60 is provided in the second accommodating cavity, and the opposite sides of the second heat sink 60 are respectively sealed and connected with the second cover plate 70 and the second bottom plate 30, the second heat sink 60 is provided with a second heat dissipation channel 61, and the first bottom plate 20 and the second bottom plate 30 are provided with a first channel 81 and a second channel 82 that are interconnected, the first channel 81 is respectively communicated with the water inlet 41 and the second heat dissipation channel 61, and the second channel 82 is respectively communicated with the water outlet 42 and the second heat dissipation channel 61.

[0073] In other words, see Figure 1 and Figure 3 The power module heat dissipation assembly 100 further includes a second cover plate 70 and a second heat sink 60. A second accommodating cavity is provided in the second cover plate 70. The second heat sink 60 is provided in the second accommodating cavity, and two opposite sides of the second heat sink 60 are respectively sealed and connected with the second cover plate 70 and the second base plate 30. The first base plate 20, the second base plate 30, the power module 10, the first cover plate 40 and the second cover plate 70 can be sealed and connected to form a structural member, which is easy to assemble and has low assembly process requirements, is conducive to improving production efficiency, and is convenient for automated installation.

[0074] The second heat sink 60 is provided with a second heat dissipation channel 61, and the first bottom plate 20 and the second bottom plate 30 are provided with a first channel 81 and a second channel 82 which are interconnected. The first channel 81 is respectively connected with the water inlet 41 and the second heat dissipation channel 61, and the second channel 82 is respectively connected with the water outlet 42 and the second heat dissipation channel 61. The condensed water is introduced into the first cover plate 40 through the water inlet 41, and a part of the condensed water passes through the first heat dissipation channel 53 of the first heat sink 50 and is discharged through the water outlet 42 to achieve heat dissipation of the bottom surface of the power module 10. The other part of the condensed water is introduced into the second cover plate 70 through the first channel 81, passes through the second heat dissipation channel 61 and the second channel 82 of the second heat sink 60, and is finally discharged through the water outlet 42 to achieve heat dissipation of the top surface of the power module 10, thereby achieving double-sided heat dissipation of the power module 10, further improving the overall heat dissipation efficiency of the product.

[0075] According to an embodiment of the present invention, opposite sides of the second heat dissipation element 60 are welded and sealed to the second bottom plate 30 and the second cover plate 70 respectively.

[0076] That is, see Figure 3 The two opposite sides of the second heat sink 60 are respectively welded and sealed with the second bottom plate 30 and the second cover plate 70. The welding and sealing method can help improve the heat conduction efficiency, and the welding has a longer service life and better heat dissipation efficiency than the heat conductive material.

[0077] In the present invention, the power module 10 is welded between the first bottom plate 20 and the second bottom plate 30 of the water channel by double-sided welding. The power module 10 with the copper substrate can be double-sided welded between the upper and lower heat sinks (the first heat sink 50 and the second heat sink 60). The upper and lower heat sink bottom plates can also be used to replace the copper substrate in the power module 10 to directly perform double-sided welding, and then the whole package is performed. The power module 10 is connected to the heat dissipation water channel by double-sided welding, which improves the thermal conductivity and heat dissipation efficiency, reduces the use of small parts such as screws, saves materials and space, and facilitates module assembly.

[0078] In some specific embodiments of the present invention, the second heat sink 60 and the first heat sink 50 are the same structural parts. In other words, the first heat sink 50 and the second heat sink 60 can use the same heat sink, and the first heat sink 50 and the second heat sink 60 can both be heat sink fins. The first heat sink 50 and the second heat sink 60 can be made of materials such as copper, aluminum, copper-aluminum composite materials and copper-aluminum transition plates according to actual needs. When using copper-aluminum composite materials, copper-aluminum composite plates with different thickness ratios can be selected for manufacturing according to different heat dissipation requirements, thereby reducing costs while ensuring performance.

[0079] According to one embodiment of the utility model, Figures 6 to 12As shown, the second cover plate 70 cooperates with the first cover plate 40 to package the first heat sink 50, the first base plate 20, the power module 10, the second base plate 30 and the second heat sink 60 into one structural member. In the power module heat sink assembly 100 of the utility model, each connection is sealed by welding, which not only reduces the use of sealing rings, but also reduces the risk of leakage of the heat sink water channel, thereby improving safety performance.

[0080] According to one embodiment of the utility model, a first connecting column 21 and a second connecting column 22 are provided on the first base plate 20, and a third connecting column 31 and a fourth connecting column 32 are provided on the second base plate 30. The first connecting column 21 corresponds to the third connecting column 31, and the welding seal forms a first channel 81, and the second connecting column 22 corresponds to the fourth connecting column 32, and the welding seal forms a second channel 82.

[0081] That is, see Figure 1 The first bottom plate 20 is provided with a first connecting column 21 and a second connecting column 22, and the second bottom plate 30 is provided with a third connecting column 31 and a fourth connecting column 32. Figure 3 and Figure 4 The first connecting column 21 corresponds to the third connecting column 31, and the first connecting column 21 and the third connecting column 31 can be welded and sealed to form a first channel 81. The second connecting column 22 corresponds to the fourth connecting column 32, and the second connecting column 22 and the fourth connecting column 32 can be welded and sealed to form a second channel 82. The first connecting column 21 and the third connecting column 31 and the second connecting column 22 and the fourth connecting column 32 are welded and sealed at the connection using solder 91, which reduces the use of sealing rings, reduces the risk of leakage of the heat dissipation channel, and improves safety performance.

[0082] According to an embodiment of the present invention, the central axis of the water inlet 41 does not coincide with the central axis of the first channel 81 , and / or the central axis of the water outlet 42 does not coincide with the central axis of the second channel 82 .

[0083] In other words, see Figure 4 The water inlet 41 and the first channel 81 are staggered in the vertical direction, and the water outlet 42 and the second channel 82 are staggered in the vertical direction, ensuring that the water inlet 41 and the first channel 81 are not on the same axis, and the water outlet 42 and the second channel 82 are not on the same axis, which is beneficial to the uniformity of water flow in the upper and lower waterways (the first heat dissipation channel 53 and the second heat dissipation channel 61), ensuring the uniformity of heat dissipation, and being beneficial to achieving uniform speed, uniform flow, and uniform heat, quickly performing heat exchange, and further improving efficiency.

[0084] According to an embodiment of the utility model, the first cover plate 40, the second cover plate 70, the first bottom plate 20, and the second bottom plate 30 are respectively one of a copper plate, an aluminum plate, a copper-aluminum composite material plate, and a copper-aluminum transition plate. In other words, the materials of the first cover plate 40, the second cover plate 70, the first bottom plate 20, and the second bottom plate 30 can all be one of copper, aluminum, a copper-aluminum composite material, and a copper-aluminum transition material. In the utility model, the first cover plate 40, the second cover plate 70, the first bottom plate 20, and the second bottom plate 30 can be made of materials such as copper, aluminum, a copper-aluminum composite material, or a copper-aluminum transition plate, which further saves costs without reducing heat dissipation performance.

[0085] In the present invention, the power module 10 can be selected to use a single tube, half bridge or full bridge mode (such as Figures 6 to 12 As shown), and a boost module can be added or the number of power modules 10 can be changed according to actual needs. The terminals of the power module 10 can be designed to be welded or screw-connected according to its specific needs. Among them, the welded terminals are thin and take up little space, making the structure more compact. The use of screws is reduced and the fault tolerance of the structure is improved. The screw-connected terminals are plastic-encapsulated according to the design requirements, and the power module 10 is plastic-encapsulated together with the waterway bottom plate, and threaded holes are tapped at the DC and AC ends to make it integrated and modular, which is convenient for subsequent automated installation. Of course, it is also possible to only open holes at the terminals, and then install them on the box body by screws, which will not be described in detail in the present utility model. Of course, for those skilled in the art, the specific structure of the power module 10 and its working principle are understandable and achievable, and will not be described in detail in the present utility model.

[0086] In summary, according to the power module heat dissipation assembly 100 of the embodiment of the utility model, the power module 10 is connected to the first heat sink 50 and the second heat sink 60 by double-sided welding, which improves thermal conductivity and heat dissipation efficiency, reduces the use of small components such as screws, saves materials and space, facilitates module assembly, and reduces the risk of leakage.

[0087] Of course, for those skilled in the art, the specific structure and working principle of the power module heat dissipation assembly 100 are understandable and achievable, and will not be described in detail in the present invention.

[0088] According to the second aspect of the utility model, a controller is provided, comprising the power module heat dissipation assembly 100 in the above-mentioned embodiment. Since the power module heat dissipation assembly 100 according to the embodiment of the utility model has the above-mentioned technical effects, the controller according to the embodiment of the utility model should also have corresponding technical effects, that is, the controller of the utility model adopts the power module heat dissipation assembly 100, and the power module 10 is connected to the first heat sink 50 and the second heat sink 60 by double-sided welding, which improves the thermal conductivity and heat dissipation efficiency of the controller, reduces the use of small components such as screws, saves materials and space, facilitates module assembly, and reduces the risk of leakage.

[0089] Of course, for those skilled in the art, other structures and working principles of the controller are understandable and achievable, and will not be described in detail in the present invention.

[0090] According to the third aspect of the utility model, a vehicle is provided, comprising the controller in the above-mentioned embodiment. Since the controller according to the embodiment of the utility model has the above-mentioned technical effects, the vehicle according to the embodiment of the utility model should also have corresponding technical effects, that is, the vehicle of the utility model adopts the controller, and the power module 10 in the controller is connected to the first heat sink 50 and the second heat sink 60 by double-sided welding, which improves the thermal conductivity and heat dissipation efficiency of the vehicle, reduces the use of small components such as screws, saves materials and space, facilitates module assembly, and reduces the risk of leakage.

[0091] Of course, for those skilled in the art, other structures of the vehicle and their working principles are understandable and achievable, and will not be described in detail in the present utility model.

[0092] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A power module heat dissipation component, characterized in that: include: Power module; First base plate; The second bottom plate is arranged opposite to the first bottom plate, the power module is arranged between the first bottom plate and the second bottom plate, and at least one of the two opposite sides of the power module is welded to the first bottom plate or the second bottom plate.

2. A power module heat dissipation assembly according to claim 1, characterized in that: The opposite two sides of the power module are welded to the first bottom plate and the second bottom plate respectively.

3. The power module heat dissipation assembly according to claim 1, characterized in that: Also includes: A first cover plate, the first cover plate is arranged on a side of the first bottom plate facing away from the power module, the first cover plate is welded to the first bottom plate, the first cover plate is provided with a first accommodating cavity, and the first cover plate is provided with a water inlet and a water outlet; A first heat sink is disposed in the first accommodating cavity, and two opposite side surfaces of the first heat sink are respectively welded to the first base plate and the first cover plate, a first heat dissipation channel is provided in the first heat sink, and the first heat dissipation channel is respectively connected to the water inlet and the water outlet to dissipate heat for the power module.

4. The power module heat dissipation assembly according to claim 3, characterized in that: The first heat sink is a heat sink fin, which includes a first fin body and a second fin body. The first fin body and the second fin body are stacked, wherein the first fin body is welded to the first cover plate, and the second fin body is welded to the first bottom plate. The first heat dissipation channel is provided in the first fin body and the second fin body.

5. The power module heat dissipation assembly according to claim 3, characterized in that: Also includes: a second cover plate, wherein a second accommodating cavity is provided in the second cover plate; A second heat sink, the second heat sink is arranged in the second accommodating cavity, and the opposite sides of the second heat sink are respectively welded to the second cover plate and the second bottom plate, the second heat sink is provided with a second heat dissipation channel, the first bottom plate and the second bottom plate are provided with a first channel and a second channel that are interconnected, the first channel is respectively communicated with the water inlet and the second heat dissipation channel, and the second channel is respectively communicated with the water outlet and the second heat dissipation channel.

6. The power module heat dissipation assembly according to claim 5, characterized in that: The first bottom plate is provided with a first connecting column and a second connecting column, the second bottom plate is provided with a third connecting column and a fourth connecting column, the first connecting column corresponds to the third connecting column and is welded to form the first channel, the second connecting column corresponds to the fourth connecting column and is welded to form the second channel.

7. The power module heat dissipation assembly according to claim 5, characterized in that: The central axis of the water inlet does not coincide with the central axis of the first channel; and / or the central axis of the water outlet does not coincide with the central axis of the second channel.

8. The power module heat dissipation assembly according to claim 5, characterized in that: The first cover plate, the second cover plate, the first bottom plate, and the second bottom plate are respectively one of a copper plate, an aluminum plate, a copper-aluminum composite material plate, and a copper-aluminum transition plate.

9. A controller, characterized in that: A power module heat dissipation component comprising any one of claims 1-8.

10. A vehicle, characterized in that: Comprising the controller as claimed in claim 9.

Images