CN217884283U - Heat radiation structure and drive assembly of motor controller power module - Google Patents
Heat radiation structure and drive assembly of motor controller power module Download PDFInfo
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- CN217884283U CN217884283U CN202221433703.XU CN202221433703U CN217884283U CN 217884283 U CN217884283 U CN 217884283U CN 202221433703 U CN202221433703 U CN 202221433703U CN 217884283 U CN217884283 U CN 217884283U
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Abstract
The utility model discloses a heat radiation structure and drive assembly of machine controller power module. The heat dissipation structure comprises a power module and a heat dissipation shell; a heat dissipation water channel is formed between the power module and the heat dissipation shell, a heat dissipation protrusion is arranged on the end face of the power module, a heat dissipation groove corresponding to the heat dissipation protrusion is arranged on the heat dissipation shell, and a gap is formed between the top end of the heat dissipation protrusion and the groove bottom and the groove wall of the heat dissipation groove. The heat dissipation structure has the advantages of simple structure, good heat dissipation performance, low manufacturing cost and the like.
Description
Technical Field
The utility model belongs to the technical field of machine controller, in particular to heat radiation structure and drive assembly of machine controller power module.
Background
The motor controller is an integrated circuit which controls the motor to work according to the set direction, speed, angle and response time through active work, heat is inevitably generated in the working process of the motor controller, and when the temperature of the motor controller is too high, the working performance of the motor controller is seriously influenced.
The power module of the existing motor controller adopts a water channel structure to realize cooling of the power module, namely a cooling water channel is arranged between the power module and a water channel shell, and in order to increase the contact area of the power module and cooling liquid in the cooling water channel and improve the heat dissipation performance, a heat dissipation pin structure is arranged on the end face of the power module, which is in contact with the cooling liquid. Because the coolant liquid has certain water resistance when flowing between the heat dissipation needle structure, when there is the clearance between heat dissipation needle point and the water course shell, a large amount of coolant liquid will flow through from this clearance, leads to reducing from the flow of the coolant liquid that flows through between the heat dissipation needle structure, and then has weakened the radiating effect of power module. Therefore, the needle point of the heat dissipation needle is in contact with the water channel shell when being arranged, the existence of a gap is eliminated, however, the end face of the water channel shell which needs to be in contact with the heat dissipation needle is very flat, the processing difficulty of the cooling water channel is increased, and the manufacturing cost is increased.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses a heat radiation structure and drive assembly of machine controller power module to overcome above-mentioned problem or solve above-mentioned problem at least partially.
In order to realize the purpose, the utility model adopts the following technical scheme:
one aspect of the present invention provides a heat dissipation structure for a power module of a motor controller, the heat dissipation structure including a power module and a heat dissipation housing;
the power module with be formed with the heat dissipation water course between the heat dissipation casing, and be equipped with the heat dissipation arch on the terminal surface of power module, be equipped with on the heat dissipation casing with the protruding radiating groove that corresponds of heat dissipation, the protruding top of heat dissipation with clearance setting between the tank bottom of radiating groove and the cell wall.
Further, the size of the notch of the heat dissipation groove is larger than that of the groove bottom.
Further, the top end of the heat dissipation protrusion is inserted into the heat dissipation groove.
Further, the cross-sectional shape of the top end of the heat dissipation protrusion is consistent with the cross-sectional shape of the heat dissipation groove.
Further, the distances from the top ends of the heat dissipation protrusions to the wall of each slot of the heat dissipation slot are the same.
Further, the distance from the top end of the heat dissipation protrusion to the wall of the heat dissipation groove is 0.2-1.4 times of the diameter of the top end of the heat dissipation protrusion.
Furthermore, the top end of the heat dissipation protrusion is the same as the distance between the groove wall and the groove bottom of the heat dissipation groove.
Furthermore, the bottom and the wall of the heat dissipation groove are arc-shaped.
Further, the top end of the heat dissipation protrusion is conical or arc-shaped.
The utility model discloses another aspect provides a drive assembly, drive assembly includes motor and machine controller, machine controller adopts above-mentioned arbitrary any heat radiation structure cool off machine controller's power module.
The utility model has the advantages and the beneficial effects that:
in the heat dissipation structure of the utility model, the heat dissipation groove corresponding to the heat dissipation protrusion is arranged on the heat dissipation shell, and the gap between the top end of the heat dissipation protrusion and the groove bottom and the groove wall of the heat dissipation groove is arranged, so that the surface processing of the heat dissipation shell does not need to be fine, the processing difficulty of the heat dissipation structure is reduced, and the manufacturing cost is reduced; and, can also realize the cooling to the protruding top of heat dissipation to when the coolant liquid passes through the radiating groove, can produce the torrent, and then can effectively strengthen heat radiation structure's cooling capacity.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a partial sectional view of a heat dissipation structure in embodiment 1 of the present invention.
In the figure: 1. a power module; 2. a heat dissipating housing; 3. a heat dissipation protrusion; 4. and a heat dissipation groove.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to perform clear and complete description of the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example 1
An embodiment of the present invention provides a heat dissipation structure of a power module of a motor controller, as shown in fig. 1, the heat dissipation structure includes a power module 1 and a heat dissipation housing 2.
Specifically, a heat dissipation water channel is formed between the power module 1 and the heat dissipation housing 2, and when the cooling liquid flows through the heat dissipation water channel, the cooling of the power module 1 can be realized. The two ends of the heat dissipation housing 2 are respectively provided with a liquid inlet and a liquid outlet (not shown in the figure), the heat dissipation water channel is respectively connected with an external cooling system through the liquid inlet and the liquid outlet, and the external cooling system circularly supplies cooling liquid to the heat dissipation water channel. In addition, a plurality of heat dissipation protrusions 3 are arranged on the end face of the power module 1, the heat dissipation protrusions 3 can be arranged orderly or disorderly, the contact area between the power module 1 and cooling liquid in a heat dissipation water channel can be increased due to the arrangement of the heat dissipation protrusions 3, and the cooling effect of the power module 1 is further improved. In addition, the heat dissipation shell 2 is provided with the heat dissipation grooves 4 corresponding to the number and the positions of the heat dissipation protrusions 3, and gaps are arranged between the top ends of the heat dissipation protrusions 3 and the groove bottoms and the groove walls of the heat dissipation grooves 4, so that the surface of the heat dissipation shell 2 is not required to be processed finely, the tolerance requirement is low, the processing difficulty of a heat dissipation structure is reduced, and the manufacturing cost is reduced; and, can also realize the cooling to the 3 tops of radiating protrusion to when the coolant liquid passes through the radiating groove, can produce the torrent, and then can effectively strengthen heat radiation structure's heat-sinking capability, the water resistance when can also reducing the coolant liquid and flowing in the cooling water channel simultaneously has reduced the requirement about coolant liquid pressure and coolant liquid temperature to external cooling system.
In the embodiment, the size of the notch of the heat dissipation groove is larger than that of the bottom of the groove, so that the cooling liquid can smoothly flow into the heat dissipation groove from the space between the cooling protrusions, and the water resistance of the cooling liquid in the flow of the heat dissipation water channel is reduced.
Further, the bellied top of heat dissipation inserts in the radiating groove, the height that highly is less than the notch of radiating groove on the bellied top of heat dissipation promptly, when making the coolant liquid flow in the radiating groove like this, produce the flow of vertical direction, the coolant liquid that the vertical direction flows and the coolant liquid that the horizontal direction flows between the radiating protrusion can produce the torrent of very big intensity when crossing, make the coolant liquid on the vertical direction realize the convection current, be convenient for the coolant liquid along the protruding direction of height of heat dissipation flow and form the heat exchange, eliminate the local high temperature of the protruding tail end department coolant liquid of heat dissipation, and then make the temperature of coolant liquid the same basically on the vertical direction, be convenient for to the better cooling of power module. Of course, in other embodiments, the top end of the heat dissipating protrusion may be flush with the notch of the heat dissipating slot, and the present invention is also within the scope of the present invention.
In addition, in the embodiment, the cross-sectional shape of the top end of the heat dissipation protrusion is consistent with that of the heat dissipation groove, and the distances from the top end of the heat dissipation protrusion to the wall of each groove of the heat dissipation groove are the same, so that the cooling liquid can conveniently flow into the heat dissipation groove and flow out of the cooling liquid groove, and the water resistance of the cooling liquid during flowing is reduced.
In this embodiment, the distance from the top end of the heat dissipating protrusion to the wall of the heat dissipating groove is 0.2 to 1.4 times the diameter of the top end of the heat dissipating protrusion, so that most of the cooling liquid still flows through the heat dissipating protrusion, and the cooling of the end portion of the heat dissipating protrusion can be effectively realized.
In addition, the distance between the top end of the radiating protrusion and the groove wall and the groove bottom of the radiating groove is the same, so that the pressure of the cooling liquid at each position in the radiating groove is basically the same, and the water resistance of the cooling liquid flowing through the radiating groove is further reduced.
Furthermore, the bottom and the wall of the heat dissipation groove are arc-shaped, so that the cooling liquid can smoothly flow through the heat dissipation groove without generating turbulence in the heat dissipation groove. Meanwhile, smooth transition is formed between the bottom and the wall of the heat dissipation groove, so that water resistance can be greatly reduced.
In this embodiment, the top ends of the heat dissipating protrusions are tapered or arc-shaped, so that the flow guidance of the cooling liquid can be realized, and the cooling liquid can flow into the heat dissipating grooves from between the heat dissipating protrusions.
Furthermore, the heat dissipation protrusion is a heat dissipation needle, the cross section of the heat dissipation groove is circular, and the gap between the tip of the heat dissipation needle and the groove bottom of the heat dissipation groove is 0.1 mm-1 mm, so that the heat dissipation structure has excellent heat dissipation performance and generates small water resistance.
In this embodiment, the power module and the heat dissipation shell are fixedly connected through screws or bolts, and a sealing ring is arranged between the power module and the heat dissipation shell, so that the cooling liquid can be effectively prevented from flowing out of a heat dissipation water channel in the cooling structure.
Example 2
The difference from embodiment 1 is that a heat dissipation channel is formed between the heat dissipation groove and the heat dissipation protrusions in this embodiment, the installation direction of the heat dissipation channel is consistent with the direction of the horizontal flow of the cooling liquid between the heat dissipation protrusions, that is, a channel inlet and a channel outlet are formed between two opposite groove walls of the heat dissipation protrusions and the heat dissipation groove, and the installation direction of the channel inlet and the channel outlet is consistent with the direction of the horizontal flow of the cooling liquid between the heat dissipation protrusions, so that the cooling liquid can enter the heat dissipation channel from the channel inlet and then flow out from the channel outlet when flowing between the heat dissipation protrusions. The size of the flow channel outlet is not smaller than that of the flow channel inlet, so that the water resistance of the cooling liquid in the flowing of the heat dissipation flow channel can be reduced.
Example 3
A drive assembly is provided in this embodiment, the drive assembly including a motor and a motor controller. The motor controller adopts the heat dissipation structure in the embodiment to cool the power module of the motor controller, and the driving assembly has the advantages of high power density and good heat dissipation performance.
In the above, only the embodiments of the present invention are shown, and other modifications and variations can be made by those skilled in the art based on the above-described embodiments in light of the above teachings. It should be understood by those skilled in the art that the detailed description above is only for the purpose of better explaining the present invention, and the scope of protection of the present invention should be subject to the scope of protection of the claims.
Claims (10)
1. A heat dissipation structure of a motor controller power module is characterized by comprising a power module and a heat dissipation shell;
the power module with be formed with the heat dissipation water course between the heat dissipation casing, and be equipped with the heat dissipation arch on the terminal surface of power module, be equipped with on the heat dissipation casing with the protruding radiating groove that corresponds of heat dissipation, the protruding top of heat dissipation with clearance setting between the tank bottom of radiating groove and the cell wall.
2. The heat dissipating structure of claim 1, wherein the heat dissipating slots have a slot opening dimension that is greater than a slot bottom dimension.
3. The heat dissipating structure of claim 1, wherein the top end of the heat dissipating protrusion is inserted into the heat dissipating groove.
4. The heat dissipating structure of claim 1, wherein the heat dissipating protrusion has a top end cross-sectional shape corresponding to the cross-sectional shape of the heat dissipating groove.
5. The heat dissipating structure of claim 1, wherein the distance from the top end of the heat dissipating protrusion to each of the walls of the heat dissipating groove is the same.
6. The heat dissipating structure of claim 5, wherein the distance from the top end of the heat dissipating protrusion to the wall of the heat dissipating groove is 0.2 to 1.4 times the diameter of the top end of the heat dissipating protrusion.
7. The heat dissipating structure of claim 5, wherein the top of the heat dissipating protrusion is spaced at the same distance from the groove wall and the groove bottom of the heat dissipating groove.
8. The heat dissipating structure of claim 2, wherein the bottom and walls of the heat dissipating slots are curved.
9. The heat dissipating structure of any one of claims 1 to 8, wherein the top end of the heat dissipating protrusion is tapered or curved.
10. A drive assembly comprising a motor and a motor controller, the motor controller employing the heat dissipation structure of any of claims 1-9 to cool a power module of the motor controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221433703.XU CN217884283U (en) | 2022-06-08 | 2022-06-08 | Heat radiation structure and drive assembly of motor controller power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221433703.XU CN217884283U (en) | 2022-06-08 | 2022-06-08 | Heat radiation structure and drive assembly of motor controller power module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217884283U true CN217884283U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221433703.XU Active CN217884283U (en) | 2022-06-08 | 2022-06-08 | Heat radiation structure and drive assembly of motor controller power module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217884283U (en) |
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2022
- 2022-06-08 CN CN202221433703.XU patent/CN217884283U/en active Active
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