Controller power tube side heat dissipation fin structure

Abstract

The utility model discloses a controller power tube side heat dissipation fin structure belongs to motor controller technical field. Including the heat dissipation fan of arrangement in the intermediate position of controller lateral wall outer, two heat dissipation fin groups are arranged in heat dissipation fan both sides, and the cover plate covers on heat dissipation fin group, the air duct of heat dissipation fan is divided into four areas on the circumference, and the suction port is set up respectively on the staggered two areas among them, heat dissipation fin group includes the horizontal fin area of being formed by a plurality of horizontal fin and the inclined fin area of being formed by a plurality of inclined fin, and one end of horizontal fin area is communicated to the suction port of air duct one side, and the other end of horizontal fin area is communicated to one end of inclined fin area. Heat dissipation fin group in the utility model is formed by horizontal fin area and inclined fin area, can improve the air inlet area, and the airflow of both sides is converged in the air duct inside through two suction ports, forms the cyclone, improves the wind speed, and finally improves the heat dissipation efficiency of heat dissipation fin structure.

Description

Technical Field

[0001] This utility model relates to the field of motor controller technology, specifically to a heat dissipation fin structure on the power tube side of a controller. Background Technology

[0002] The power transistors in a controller generate a significant amount of heat during operation. If this heat cannot be dissipated effectively and promptly, the transistors will overheat, affecting their efficiency and shortening their lifespan. Therefore, controllers typically incorporate heat dissipation structures with heat sinks for the power transistors.

[0003] The conventional heat dissipation structure is as follows: heat dissipation fins are arranged on one side wall close to the power tube and covered with a cover plate. A heat dissipation fan is set at one end of the heat dissipation fins so that airflow flows from one end of the heat dissipation fins to the other end. This heat dissipation fin structure only allows air to enter from one end, which is not efficient and results in low heat dissipation efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a controller power tube side heat dissipation fin structure to improve the air intake efficiency and heat dissipation efficiency of the power tube side heat dissipation fin.

[0005] This utility model adopts the following technical solution: a controller power tube side heat dissipation fin structure, comprising: The cooling fan is located in the middle of the outer side wall of the controller; Two heat dissipation fins are respectively fixed on the side walls on both sides of the heat dissipation fan; A cover plate that covers the heat dissipation fins; The cooling fan's air duct is divided into four sections in the circumference, with air intakes on the two intersecting sections. The heat dissipation fin assembly includes a transverse fin area composed of multiple transverse fins and an inclined fin area composed of multiple inclined fins. One end of the transverse fin area is connected to the air intake on one side of the air duct, and the other end of the transverse fin area is connected to one end of the inclined fin area.

[0006] Preferably, the cover plate has a through hole in the middle, and a positioning frustum is fixed around the through hole; the cooling fan is inserted into the positioning frustum.

[0007] Preferably, the outer end of the cooling fan duct has a flange ring, which abuts against the end face of the positioning frustum and is fixedly connected to the positioning frustum with screws.

[0008] Preferably, the inner end of the cooling fan duct has an arc-shaped positioning strip; an arc-shaped groove is provided on the side wall opposite to the duct, and the positioning strip is inserted into the arc-shaped groove.

[0009] Preferably, the two air inlets are staggered by 180°; two sets of arc-shaped fin areas, each composed of multiple arc-shaped fins, are provided on the side wall at a position opposite to the air duct of the cooling fan, and the two arc-shaped fin areas are arranged at a 90° staggered with the two air inlets.

[0010] Preferably, the two air inlets are symmetrical about the center; the two arc-shaped fin areas are symmetrical about the center; and the two heat dissipation fin groups are symmetrical about the center.

[0011] Preferably, in one of the heat dissipation fin groups, the transverse fin area is arranged near the upper side of the sidewall, and the inclined fin area is arranged near the lower side of the sidewall; the transverse fins near the outer side of the transverse fin area are longer than the transverse fins near the middle; the inclined fin area connects to the lower side of the sidewall and one end side.

[0012] Preferably, one end of the transverse fin is opposite to the air inlet, and the other end of the transverse fin is connected to the corresponding inclined fin to form a single unit.

[0013] Preferably, the side of the inclined fin is provided with supplementary fins parallel to the inclined fin.

[0014] Preferably, the cover plate has multiple small holes opposite to the heat dissipation fins, and the cover plate is spot-welded to the heat dissipation fins at the small holes.

[0015] The beneficial effects of this utility model are as follows: Each heat dissipation fin assembly consists of a horizontal fin area and an inclined fin area. This partitioned arrangement increases the air intake area and allows the airflow to flow more smoothly in the heat dissipation fin assembly, which is conducive to heat dissipation. The airflow in the heat dissipation fin assemblies on both sides converges inside the air duct through the two air inlets of the air duct. Combined with the arc-shaped fin area, it forms a vortex, which increases the wind speed and the working efficiency of the heat dissipation fan, and ultimately improves the heat dissipation efficiency of the heat dissipation fin structure. The heat dissipation fan adopts an insert-type quick installation structure, which has good stability and is also convenient for later maintenance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a controller power tube side heat dissipation fin structure according to the present invention.

[0018] Figure 2 This is a front view of a controller power tube side heat dissipation fin structure according to the present invention.

[0019] Figure 3This is a right view of a controller power tube side heat dissipation fin structure according to the present invention.

[0020] Figure 4 This is a top view of a controller power tube side heat dissipation fin structure according to the present invention.

[0021] Figure 5 for Figure 4 View from AA.

[0022] Figure 6 This is an exploded view of a controller power tube-side heat dissipation fin structure according to the present invention.

[0023] Explanation of reference numerals in the attached figures: 1. Sidewall; 11. Arc-shaped groove; 2. Cooling fan; 21. Air duct; 211. Air intake; 212. Flange ring; 213. Positioning strip; 3. Cover plate; 31. Positioning frustum; 4. Lateral wing area; 41. Lateral wing blade; 5. Inclined fin area; 51. Inclined fin; 52. Supplementary fin; 6. Arc-shaped wing area; 61. Arc-shaped wing; 7. Screws. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Example 1: like Figures 1 to 4 As shown, this utility model provides a controller power tube side heat dissipation fin structure, mainly including a heat dissipation fan 2, two heat dissipation fin groups and a cover plate 3. The heat dissipation fan 2 is arranged in the middle position outside the controller side wall 1, and the two heat dissipation fin groups are disposed on both sides of the heat dissipation fan 2; the power tube assembly is installed on the inner side of the side wall 1, and the heat dissipation fin groups are integrally formed with the side wall 1, and the heat of the power tube is transferred to the heat dissipation fin groups through the side wall 1.

[0027] The cover plate 3 is fixed to the heat dissipation fins, and the heat dissipation fan 2 is installed in the middle of the cover plate 3. The inner end of the air duct 21 of the heat dissipation fan 2 abuts against the side wall 1. The inner end of the air duct 21 is divided into four equal sections in the circumference, and two sections that are staggered by 180° each have 90° air intakes 211, which are symmetrically arranged in a circle. Figure 5 As shown, one air intake 211 is located in the upper right and the other air intake 211 is located in the lower left.

[0028] Combination Figure 5 and Figure 6 As shown, the two heat dissipation fin groups are symmetrical in a circle. In this embodiment, the heat dissipation fin group on the right is used as an example: the heat dissipation fin group includes a transverse fin area 4 composed of multiple transverse fins 41 and an inclined fin area 5 composed of multiple inclined fins 51. The transverse fin area 4 is arranged near the upper side of the sidewall 1 and is parallel to the length direction of the sidewall 1; the left end of the transverse fin 41 is opposite to the upper right air inlet 211, the upper transverse fin 41 is longer than the lower adjacent transverse fin 41, and the uppermost transverse fin 41 extends to the right end of the sidewall 1. The inclined fin area 5 is arranged near the lower side of the sidewall 1, and the inclined fin 51 has a 45° angle with the sidewall 1 in the length direction; the right end of each transverse fin 41 is connected to a corresponding inclined fin 51; a supplementary fin 52 parallel to the inclined fin 51 is also provided on the side of the inclined fin 51, and the supplementary fin 52 is independent of the inclined fin 51 and the transverse fin 41. It can be seen that the left end of the transverse fin area 4 in the heat dissipation fin assembly is connected to the upper right air intake 211, the right end of the transverse fin area 4 is connected to the inclined fin area 5, and the inclined fin area 5 is connected to the lower side and the right side of the side wall 1.

[0029] When in operation, after the cooling fan 2 is started, air can be drawn in through the cooling fins on both sides, including the left end and the upper side of the left half of the side wall 1, as well as the right end and the lower side of the right half of the side wall 1, thus improving the air intake efficiency of the cooling structure. In addition, the air intake on both sides converges into the air duct 21 through the upper right air intake 211 and the lower left air intake 211, forming a vortex, which helps to increase the wind speed, improve the efficiency of the cooling fan 2, and ultimately improve the overall cooling efficiency of the cooling fin structure.

[0030] Example 2: Based on the above embodiment one, combined with Figure 5 and Figure 6As shown, two sets of staggered 180° arc-shaped fin areas 6 are provided on the side wall 1, opposite to the air duct 21 of the cooling fan 2. The two arc-shaped fin areas 6 are arranged at a 90° angle to the two air intakes 211. The arc-shaped fin areas 6 are composed of multiple concentric arc-shaped fins 61, with the center of the arc-shaped fins 61 located at the axis of the air duct 21. By setting the arc-shaped fins 61, the airflow from the air intakes 211 on both sides can be better guided to form a swirling flow. The arc-shaped fins 61 can also carry away the heat from the center of the side wall 1 more quickly, improving the heat dissipation efficiency.

[0031] Example 3: Based on the above embodiments one or two, combined with Figures 1 to 4 ,as well as Figure 6 As shown, a through hole is provided in the middle of the cover plate 3, and an annular positioning frustum 31 is fixed around the through hole. Multiple small holes are provided on the cover plate 3, which are opposite to the fins in the heat dissipation fin assembly. The cover plate 3 is spot welded to each fin at the small holes to fix the cover plate 3. Under the action of the cover plate 3, a sealed heat dissipation channel is formed between each fin.

[0032] The air duct 21 of the cooling fan 2 is inserted into the positioning frustum 31. The inner end of the air duct 21 has an arc-shaped positioning strip 213. An arc-shaped groove 11 is formed on the side wall 1 opposite to the positioning strip 213. The positioning strip 213 fits into the arc-shaped groove 11 to achieve positioning of the inner end of the air duct 21. A flange ring 212 that mates with the positioning frustum 31 is fixed to the outer end of the air duct 21. The flange ring 212 and the positioning frustum 31 are fixedly connected by screws 7 to fix the cooling fan 2.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A controller power transistor-side heat dissipation fin structure, characterized in that, include: The cooling fan is located in the middle of the outer side wall of the controller; Two heat dissipation fins are respectively fixed on the side walls on both sides of the heat dissipation fan; A cover plate that covers the heat dissipation fins; The cooling fan's air duct is divided into four sections in the circumference, with air intakes on the two intersecting sections. The heat dissipation fin assembly includes a transverse fin area composed of multiple transverse fins and an inclined fin area composed of multiple inclined fins. One end of the transverse fin area is connected to the air intake on one side of the air duct, and the other end of the transverse fin area is connected to one end of the inclined fin area.

2. The controller power transistor side heat dissipation fin structure according to claim 1, characterized in that: The cover plate has a through hole in the middle, and a positioning frustum is fixed around the through hole; the cooling fan is inserted into the positioning frustum.

3. The controller power transistor side heat dissipation fin structure according to claim 2, characterized in that: The outer end of the cooling fan duct has a flange ring, which abuts against the end face of the positioning frustum and is fixedly connected to the positioning frustum with screws.

4. The controller power transistor side heat dissipation fin structure according to claim 2, characterized in that: The inner end of the cooling fan duct has an arc-shaped positioning strip; an arc-shaped groove is provided on the side wall opposite to the duct, and the positioning strip is inserted into the arc-shaped groove.

5. The controller power transistor side heat dissipation fin structure according to claim 1, characterized in that: The two air intakes are staggered by 180°; two sets of arc-shaped fin areas, each composed of multiple arc-shaped fins, are provided on the side wall opposite to the air duct of the cooling fan, and the two arc-shaped fin areas are arranged at 90° angles to the two air intakes.

6. The controller power transistor side heat dissipation fin structure according to claim 5, characterized in that: The two air intakes are symmetrical in a circle; the two arc-shaped fin areas are symmetrical in a circle; the two heat dissipation fin groups are symmetrical in a circle.

7. The controller power transistor side heat dissipation fin structure according to claim 1, characterized in that: In one of the heat dissipation fin groups, the transverse fin area is arranged near the upper side of the sidewall, and the inclined fin area is arranged near the lower side of the sidewall; the transverse fins near the outer side of the transverse fin area are longer than the transverse fins near the middle; the inclined fin area connects to the lower side of the sidewall and one end side.

8. The controller power transistor side heat dissipation fin structure according to claim 7, characterized in that: One end of the transverse fin is opposite to the air inlet, and the other end of the transverse fin is connected to the corresponding inclined fin to form a single unit.

9. The controller power transistor side heat dissipation fin structure according to claim 8, characterized in that: The side of the inclined fin is provided with supplementary fins that are parallel to the inclined fin.

10. The controller power transistor side heat dissipation fin structure according to claim 1, characterized in that: The cover plate has multiple small holes that are opposite to the heat dissipation fins, and the cover plate is spot welded to the heat dissipation fins at the small holes.

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