Power module heat dissipation equipment and controller

Abstract

The utility model provides a power module heat dissipation device and a controller, the power module heat dissipation device comprises an assembling mechanism, the assembling mechanism comprises supporting plates and connecting plates, the connecting plates are arranged in parallel at intervals and are respectively connected to the supporting plates, and the two adjacent connecting plates and the supporting plate jointly define a heat dissipation air channel; the heat dissipation assembly comprises a plurality of heat dissipation racks, and the multiple heat dissipation racks are connected into the heat dissipation air channel in parallel at intervals and are arranged parallel to the supporting plate; and the at least one fan is arranged at the end part of the heat dissipation air channel, and an air outlet of the at least one fan faces the heat dissipation air channel and is simultaneously connected to the connecting plate and the supporting plate. According to the radiator, direct assembly of the fan is achieved through arrangement of the supporting plates and the connecting plates, extra redundant part assembly is not needed, the direct effect of the fan on the heat dissipation air channel can also be achieved, and compared with a conventional radiator at the present stage, the radiator has the advantages of being convenient to install, flexible to use, low in cost, good in heat dissipation effect, high in connection stability and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation structures, in particular to a power module heat dissipation device and a controller. Background Art

[0002] In today's key fields such as industrial control, automobiles, and new energy, the controller, as the central nerve of the system, directly determines the stability and reliability of the entire system. Among them, the power module, as the core heat-generating component of the controller, its heat dissipation efficiency has always been a key and difficult problem in the design and application process. Currently, for power modules represented by IGBT (Insulated Gate Bipolar Transistor), the commonly used heat dissipation technologies include natural cooling, air cooling, heat pipes, and liquid cooling. Among these, air-cooled radiators have been widely used in the market due to their advantages such as low cost, short production cycle, and high reliability.

[0003] However, there are some deficiencies in the design of existing air-cooled radiators, which are mainly reflected in the fixing method of the fan, the structural complexity of the radiator, and the overall cost and reliability. To fix the fan, existing technologies often require designing additional fan brackets or fan covers, which not only increases the number of parts but also makes the overall structure of the radiator more complex. During the assembly process, this complexity leads to an increase in the assembly difficulty, and more steps and higher precision are required to complete the installation of the controller. At the same time, due to the large number of parts, it becomes more difficult to maintain and replace the fan or radiator, which not only increases the maintenance cost but also may extend the downtime.

[0004] Especially in the fixation of the fan, the fan cover generally adopts a plastic buckle structure. However, due to the continuous vibration during the operation of the fan, the buckle has insufficient fixing strength, which may cause the fan to be unstably fixed. Although the fan bracket is processed from a metal plate and has sufficient strength, its installation requires an additional set of screw connections for fixation, making the assembly process more complex. These additional structures not only increase the material cost but also raise the assembly cost and maintenance cost.

[0005] In addition, the radiator itself is a metal structure with reliable strength. However, when connecting to the outer shell and fixing the controller through the outer shell, it will cause the volume of the outer shell to increase, increasing the cost, and its strength may not be as reliable as directly fixing the radiator. The heat dissipation teeth of the radiator itself form the heat dissipation channel. However, the fan is fixed to the outer shell, which requires designing an air duct structure inside the outer shell to direct the air flow towards the radiator intensively. This not only makes the outer shell structure more complex but also increases the material cost and occupied space of the outer shell. Summary of the Invention

[0006] To this end, the technical problem to be solved by the present utility model is to overcome the problem of the complex connection structure of the power module radiator in the prior art, and provide a power module heat dissipation device and a controller.

[0007] To solve the above technical problem, the present utility model provides a power module heat dissipation device, which includes: an assembly mechanism, the assembly mechanism includes a support plate and at least two connecting plates, at least two of the connecting plates are arranged in parallel at intervals, and are respectively connected to the support plate, and adjacent two of the connecting plates and the support plate jointly enclose a heat dissipation air duct; a heat dissipation component, the heat dissipation component includes a plurality of heat dissipation racks, the plurality of heat dissipation racks are connected in parallel at intervals in the heat dissipation air duct, and are respectively arranged parallel to the support plate; at least one fan, at least one of the fans is arranged at the end of the heat dissipation air duct, its air outlet is arranged towards the heat dissipation air duct, and is simultaneously connected to the connecting plate and the support plate.

[0008] In an embodiment of the present utility model, the fan includes a housing and a fan blade, a ventilation opening is provided at the center of the housing, the fan blade is arranged in the ventilation opening, and the housing is respectively connected to the connecting plate and the support plate.

[0009] In an embodiment of the present utility model, at least two first assembly holes are provided on one side of the support plate facing the fan, at least two second assembly holes are provided on one side of the connecting plate facing the fan, at least four third assembly holes are provided on the housing, and part of the connecting pieces pass through the first assembly holes and the third assembly holes to connect the housing and the support plate, and the remaining connecting pieces pass through the second assembly holes and the third assembly holes to connect the housing and the connecting plate.

[0010] In an embodiment of the present utility model, the housing further includes a frame and a plurality of connecting parts, the fan blade is arranged in the frame, the connecting parts are arranged at the edge of the frame and extend along the thickness direction of the housing, the third assembly holes are respectively arranged in the connecting parts, and the fan forms a multi-point connection structure with the assembly mechanism through the connecting parts.

[0011] In an embodiment of the present utility model, the assembly mechanism further includes at least one support leg, at least one of the support legs is connected to the support plate and extends in the same direction as the connecting plate.

[0012] In an embodiment of the present utility model, a fourth assembly hole is provided on the support plate, a fifth assembly hole is provided at the end of the support leg, and a connecting piece passes through the fourth assembly hole and the fifth assembly hole to connect the support leg and the support plate.

[0013] In one embodiment of the utility model, a accommodating groove is provided on the support plate, the support leg includes a main body and a plug-in portion, the accommodating groove is arranged around the fourth assembly hole, and the accommodating groove is recessed from the surface of the support plate toward a direction away from the support leg, the plug-in portion is penetrated and connected to the accommodating groove, the main body abuts against the surface of the support plate, and the fifth assembly hole is arranged in the plug-in portion.

[0014] In an embodiment of the present invention, the heat dissipation rack is a planar rack.

[0015] In one embodiment of the present invention, the heat dissipation rack is a corrugated rack.

[0016] The utility model also provides a controller, which comprises the above-mentioned power module heat dissipation device.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The power module heat dissipation device and controller described in the utility model enclose a heat dissipation duct through an assembly mechanism and a heat dissipation component, and directly arranges a fan at the end of the heat dissipation duct. In its structural setting, direct assembly of the fan is achieved through the arrangement of a support plate and a connecting plate. No additional redundant parts need to be assembled, and the direct effect of the fan on the heat dissipation duct can be achieved. Compared with conventional radiators at this stage, the present application has the advantages of easy installation, flexible use, low cost, good heat dissipation effect and high connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a power module heat dissipation device in a preferred embodiment of the utility model;

[0021] Figure 2 yes Figure 1 An exploded structural diagram of the power module heat sink shown;

[0022] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the heat dissipation component and part of the assembly mechanism in the power module heat dissipation device shown;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of a heat dissipation component and a partial assembly mechanism in another embodiment of the present application.

[0024] Description of the reference numerals in the drawings of the specification: 100, assembly mechanism; 110, support plate; 111, first assembly hole; 112, fourth assembly hole; 120, connecting plate; 121, second assembly hole; 130, support leg; 131, main body portion; 132, insertion portion; 133, fifth assembly hole; 200, heat dissipation assembly; 210, heat dissipation rack; 300, fan; 310, housing; 311, connecting portion; 312, third assembly hole; 313, frame; 320, fan blade. Detailed implementation manners

[0025] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the illustrated embodiments are not intended to limit the present utility model.

[0026] Embodiment 1

[0027] Refer to Figure 1 and Figure 2 As shown in and, this embodiment provides a power module heat dissipation device for dissipating heat from an IGBT power module, which includes: an assembly mechanism 100, the assembly mechanism 100 includes a support plate 110 and at least two connecting plates 120, the at least two connecting plates 120 are arranged in parallel at intervals, and are respectively connected to the support plate 110, and the adjacent two connecting plates 120 and the support plate 110 jointly enclose a heat dissipation air duct; a heat dissipation assembly 200, the heat dissipation assembly 200 includes a plurality of heat dissipation racks 210, the plurality of heat dissipation racks 210 are connected in parallel at intervals in the heat dissipation air duct, and are respectively arranged parallel to the support plate 110; at least one fan 300, at least one fan 300 is arranged at the end of the heat dissipation air duct, its air outlet is oriented towards the heat dissipation air duct, and is simultaneously connected to the connecting plate 120 and the support plate 110.

[0028] The power module heat dissipation device described in this embodiment encloses a heat dissipation air duct through the assembly mechanism 100 and the heat dissipation assembly 200, and directly arranges the fan 300 at the end of the heat dissipation air duct. In its structural setting, the direct assembly of the fan 300 is realized through the layout of the support plate 110 and the connecting plate 120, without the need for additional redundant parts for assembly, and the direct action of the fan 300 on the heat dissipation air duct can also be realized. Compared with the current conventional radiators, this application has the advantages of being easy to install, flexible in use, low in cost, good in heat dissipation effect, and high in connection stability.

[0029] Refer to Figure 1 and Figure 2As shown, the support plate 110 in this embodiment is preferably a rectangular plate. The IGBT power module is connected to the top of the support plate 110, and the connection plate 120, the heat dissipation component 200, and the fan 300 are all arranged at the bottom of the support plate 110. Further, the base material of the support plate 110 has good thermal conductivity, so that the air-cooling effect on the IGBT power module can be realized.

[0030] Specifically, in this embodiment, six connection plates 120 are provided at the bottom of the support plate 110. Every two of the six connection plates 120 form a group, enclosing three heat dissipation channels in the space below the support plate 110, and a fan 300 is correspondingly assembled at the end of any heat dissipation channel. Further, the support plate 110 and the connection plate 120 are fixedly connected, and any connection plate 120 is perpendicular to the surface of the support plate 110.

[0031] See Figure 2As shown, the fan 300 includes a housing 310 and a fan blade 320. A ventilation opening is provided at the center of the housing 310, and the fan blade 320 is disposed in the ventilation opening. The housing 310 is respectively connected to the connecting plate 120 and the support plate 110. Specifically, at least two first assembly holes 111 are provided on one side of the support plate 110 facing the fan 300, and at least two second assembly holes 121 are provided on one side of the connecting plate 120 facing the fan 300. At least four third assembly holes 312 are provided on the housing 310. Some connecting members pass through the first assembly holes 111 and the third assembly holes 312 to connect the housing 310 and the support plate 110, and the remaining connecting members pass through the second assembly holes 121 and the third assembly holes 312 to connect the housing 310 and the connecting plate 120. Further, the housing 310 further includes a frame 313 and a plurality of connecting portions 311. The fan blade 320 is disposed in the frame 313. The connecting portions 311 are disposed at the edge of the frame 313 and extend along the thickness direction of the housing 310. The third assembly holes 312 are respectively disposed in the connecting portions 311. The fan 300 forms a multi-point connection structure with the assembly mechanism 100 through the connecting portions 311. In this embodiment, six first assembly holes 111 are correspondingly provided on the support plate 110, and a second assembly hole 121 is provided in the middle and lower part of any connecting plate 120. Any rectangular housing 310 of the fan 300 can correspond to two first assembly holes 111 and two second assembly holes 121, and the two first assembly holes 111 and the two second assembly holes 121 are respectively located at the four corners of the housing 310, thereby realizing a stable four-point connection between the assembly mechanism 100 and the housing 310. Specifically, the connecting member in this embodiment is preferably a connecting bolt. In other embodiments, the connecting member can select other buckling and plugging structures to realize the detachable connection relationship between the fan 300 and the assembly mechanism 100. The number and the setting positions of the first assembly holes 111 and the second assembly holes 121 can also be adjusted according to actual use requirements, and the present utility model does not make specific limitations thereto.

[0032] See Figure 1 and Figure 2As shown, the assembly mechanism 100 further includes at least one support leg 130, at least one of the support legs 130 is connected to the support plate 110, and extends in the same direction as the connecting plate 120. Specifically, the present embodiment includes four support legs 130, and the four support legs 130 are correspondingly connected to the four corners of the support plate 110, and are used to support the external mounting surface or mounting structure. Furthermore, the support plate 110 in the present embodiment is provided with a fourth assembly hole 112, and the end of the support leg 130 is provided with a fifth assembly hole 133. The connecting member penetrates the fourth assembly hole 112 and the fifth assembly hole 133 to connect the support leg 130 and the support plate 110. Similarly, the support leg 130 and the support plate 110 are preferably fixed by bolts. Furthermore, in order to improve the connection stability between the support leg 130 and the support plate 110, a receiving groove is provided on the support plate 110 in this embodiment, and the support leg 130 includes a main body 131 and a plug-in portion 132. The receiving groove is arranged around the fourth assembly hole 112, and the receiving groove is recessed from the surface of the support plate 110 toward a direction away from the support leg 130. The plug-in portion 132 is penetrated and connected in the receiving groove, the main body 131 abuts against the surface of the support plate 110, and the fifth assembly hole 133 is arranged in the plug-in portion 132. Based on this, when the support leg 130 is inserted into the receiving groove, the receiving groove can limit the support leg 130 in the horizontal direction, thereby reducing the shaking between the support plate 110 and the mounting surface during actual use, thereby improving the stability of the use of the IGBT power module.

[0033] See also Figure 3 As shown, the heat dissipation racks 210 in this embodiment are all configured as plane racks, and multiple heat dissipation racks 210 are evenly spaced. In order to match the edge shape of the heat dissipation duct, the heat dissipation racks 210 at the edge can also be set to different extension lengths. In this embodiment, the two heat dissipation racks 210 at the two ends are shorter in the thickness direction of the device than the heat dissipation rack 210 in the middle. When the fan 300 is working, the cooling air can fully contact the multiple heat dissipation racks 210 arranged at intervals, thereby increasing the heat dissipation area inside the heat dissipation duct and improving the temperature transfer efficiency.

[0034] Embodiment 2

[0035] See also Figure 4 As shown, this embodiment provides another power module heat dissipation device, whose main structure and working distance are the same as those of the first embodiment, and no further details are given here. In this embodiment, in order to further increase the contact area of ​​the heat dissipation rack 210, it is set as a corrugated rack. Based on this, during the heat dissipation process, the heat dissipation rack 210 has a larger contact area with the cooling air, thereby achieving the effect of accelerating the cooling.

[0036] Embodiment III

[0037] This embodiment provides a controller, which includes the power module heat dissipation device described in Embodiment I.

[0038] In summary, for the power module heat dissipation device and the controller of the present utility model, an air duct is enclosed by the assembly mechanism 100 and the heat dissipation component 200, and the fan 300 is directly arranged at the end of the air duct. In its structural design, the direct assembly of the fan 300 is realized through the arrangement of the support plate 110 and the connecting plate 120. Without the need for additional redundant parts for assembly, the fan 300 can directly act on the air duct. Compared with the current conventional radiators, this application has the advantages of being easy to install, flexible in use, low in cost, good in heat dissipation effect, and high in connection stability.

[0039] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. A power module heat dissipation device, characterized in that: include: An assembly mechanism, the assembly mechanism comprising a support plate and at least two connecting plates, the at least two connecting plates being arranged in parallel and spaced apart and respectively connected to the support plate, and two adjacent connecting plates and the support plate jointly enclosing a heat dissipation duct; A heat dissipation assembly, the heat dissipation assembly comprising a plurality of heat dissipation racks, the plurality of heat dissipation racks are connected in parallel and at intervals in the heat dissipation duct, and are respectively arranged in parallel with the support plate; At least one fan is disposed at the end of the heat dissipation duct, with an air outlet thereof disposed toward the heat dissipation duct, and is simultaneously connected to the connecting plate and the supporting plate.

2. The power module heat dissipation device according to claim 1, characterized in that: The fan comprises a shell and fan blades. A vent is provided at the center of the shell, and the fan blades are arranged in the vent. The shell is respectively connected to the connecting plate and the supporting plate.

3. The power module heat dissipation device according to claim 2, characterized in that: The support plate is provided with at least two first assembly holes on a side facing the fan, the connecting plate is provided with at least two second assembly holes on a side facing the fan, and the shell is provided with at least four third assembly holes. Some connecting members are provided with the first assembly holes and the third assembly holes to connect the shell and the support plate, and the remaining connecting members are provided with the second assembly holes and the third assembly holes to connect the shell and the connecting plate.

4. The power module heat dissipation device according to claim 3, characterized in that: The shell also includes a frame and a plurality of connecting parts, the fan blades are arranged in the frame, the connecting parts are arranged at the edge of the frame and extend along the thickness direction of the shell, the third assembly holes are respectively arranged in the connecting parts, and the fan forms a multi-point connection structure with the assembly mechanism through the connecting parts.

5. The power module heat dissipation device according to claim 1, characterized in that: The assembly mechanism further comprises at least one supporting leg, wherein at least one supporting leg is connected to the supporting plate and extends in the same direction as the connecting plate.

6. The power module heat dissipation device according to claim 5, characterized in that: The support plate is provided with a fourth assembly hole, the end of the support leg is provided with a fifth assembly hole, and a connecting piece passes through the fourth assembly hole and the fifth assembly hole to connect the support leg and the support plate.

7. The power module heat dissipation device according to claim 6, characterized in that: The support plate is provided with a receiving groove, the support leg includes a main body and a plug-in portion, the receiving groove is arranged around the fourth assembly hole, and the receiving groove is recessed from the surface of the support plate toward a direction away from the support leg, the plug-in portion is penetrated and connected to the receiving groove, the main body abuts against the surface of the support plate, and the fifth assembly hole is arranged in the plug-in portion.

8. The power module heat dissipation device according to claim 1, characterized in that: The heat dissipation rack is a planar rack.

9. The power module heat dissipation device according to claim 1, characterized in that: The heat dissipation rack is a corrugated rack.

10. A controller, characterized in that: A power module heat dissipation device comprising any one of claims 1 to 9.

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