Shell structure of controller
By optimizing the heat dissipation fin structure of the motor controller housing and combining the design of blank areas and transition areas, the problem of poor heat dissipation in the existing technology has been solved, achieving more efficient heat dissipation and material saving.
Patent Information
- Application Number
- CN202520168594.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-24
AI Technical Summary
In the existing motor controller housing structure, the unreasonable arrangement of heat dissipation fins leads to poor heat dissipation, excessive material usage, and insufficient air conduction and heat dissipation capacity.
The heat dissipation fin structure is arranged vertically, including a combination of central heat dissipation fins, horizontal heat dissipation fins, longitudinal heat dissipation fins and arc-shaped heat dissipation fins. Combined with blank areas and transition areas, the heat dissipation path and air disturbance are optimized, and the heat dissipation efficiency is improved by die casting.
Without increasing the amount of material used, the heat dissipation effect was significantly improved, the average temperature was reduced by 1.59℃, the material volume was reduced by 22.23%, and the heat dissipation efficiency was improved.
Smart Images
Figure CN223872626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor controller technology, specifically to the housing structure of the controller. Background Technology
[0002] During motor controller operation, the internal power conversion module generates heat. This heat needs to be transferred to the housing through the contact surface for dissipation, ensuring the power conversion module's temperature does not exceed a certain value and guaranteeing stable operation of the motor controller. Existing heat dissipation structures on the housing include... Figure 1 As shown, the lower part of the housing is used to install the controller, while the upper part of the housing has wavy heat dissipation fins of a certain height. Heat on the housing is dissipated through convection with the air via these fins. The heat dissipation fins increase the contact area between the housing and the air, improving convection cooling. A fan at the bottom of the housing draws cool air downwards. After entering the heat dissipation fins, the air further enhances convection cooling, dissipating the module's heat from the inside out to the surrounding environment. The disadvantages of the existing housing are that the heat dissipation fins cover the entire housing, requiring a large amount of material, and due to the unreasonable arrangement of the fins, the thermal conductivity and heat dissipation capacity of the air within the fins are poor, resulting in only average heat dissipation effect. Utility Model Content
[0003] The purpose of this invention is to solve the problems of the existing controller housing structure and provide a housing heat dissipation structure that is simpler and has a better heat dissipation effect.
[0004] The technical solution provided by this utility model is as follows: A housing structure for a controller includes a housing and vertically arranged heat dissipation ribs disposed on the outer surface of the housing. A central heat dissipation rib is disposed in the middle of the housing, extending to the edge of the housing at both ends. A blank area without heat dissipation ribs is disposed in front of the central heat dissipation ribs. A "V"-shaped transition area with an opening facing the rear edge of the housing is disposed in the rear of the central heat dissipation ribs. The housing area located between the outer side of the transition area and the central heat dissipation rib is the outer area, and the area located between the inner side of the transition area and the edge of the housing is the inner area.
[0005] The outer region is provided with several transverse heat dissipation ribs that run across the outer region, and the transverse heat dissipation ribs are parallel to the middle heat dissipation ribs. The inner region is provided with several longitudinal heat dissipation ribs that run through the inner region. The transition region is provided with arc-shaped heat dissipation ribs, and the protruding direction of the arc-shaped heat dissipation ribs faces the inside of the shell.
[0006] The blank areas are used for cable management and plastic casings, generating little heat, so the heat dissipation ribs can be omitted to reduce material usage. Horizontal heat dissipation ribs guide hot air from the rear of the casing, while vertical heat dissipation ribs guide it from the sides, increasing the outflow directions. The transition area has higher heat levels; as the intersection of horizontal and vertical heat dissipation ribs, the air turbulence is greater, allowing for more efficient heat absorption from the ribs and increasing heat absorption. The curved heat dissipation ribs in the transition area guide heat outwards between the horizontal or vertical ribs. In summary, the use of horizontal, vertical, and curved heat dissipation ribs improves heat dissipation efficiency and enhances the overall heat dissipation effect.
[0007] Preferably, the arc-shaped heat dissipation ribs are not connected to the longitudinal heat dissipation ribs and the transverse heat dissipation ribs. The ends of the arc-shaped heat dissipation ribs near the longitudinal heat dissipation ribs are staggered with the ends of the longitudinal heat dissipation ribs, and the ends of the arc-shaped heat dissipation ribs near the transverse heat dissipation ribs are staggered with the ends of the transverse heat dissipation ribs.
[0008] The interlacing of arc-shaped heat dissipation fins with longitudinal and transverse heat dissipation fins increases the turbulence of air flowing downwards to this point, increases the amount of heat absorbed by the air at the heat dissipation fins, and improves heat dissipation efficiency.
[0009] Preferably, the housing is provided with a plurality of cylindrical heat dissipation ribs near the center, and the cylindrical heat dissipation ribs are located behind the central heat dissipation rib.
[0010] Because the density of the heat dissipation fins at the center is relatively high, it cannot accommodate long strip heat dissipation fins. The cylindrical heat dissipation fins, while making full use of the space, work in conjunction with the arc-shaped heat dissipation fins to increase the disturbance of the air entering this area from above, increase the convective heat transfer between the air and the heat dissipation fins, improve the absorption of heat by the air, and improve the heat dissipation efficiency.
[0011] Preferably, the longitudinal heat dissipation fins and the transverse heat dissipation fins are symmetrically distributed from left to right, and the longitudinal heat dissipation fins and the transverse heat dissipation fins correspond one-to-one, so that the heat is dissipated more evenly during heat dissipation.
[0012] Preferably, a plurality of U-shaped, forward-facing front heat dissipation ribs are further provided between the blank area and the central heat dissipation rib. The middle portion of the front heat dissipation ribs is parallel to the central heat dissipation rib, and both ends of the front heat dissipation ribs extend to the edge of the housing. The front heat dissipation ribs improve the heat dissipation capacity at the edge of the blank area.
[0013] Preferably, the housing has short heat dissipation ribs in the area between the two ends of the front heat dissipation rib and the middle heat dissipation rib, which improves the heat dissipation capacity of the edge of the blank area.
[0014] Preferably, the short heat dissipation fin is parallel to the end portion of the front heat dissipation fin, which increases the air outflow rate.
[0015] Preferably, all the heat dissipation fins are integrally formed by die casting, with a draft angle between 1 and 1.5°.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] Blank areas are used for laying cables and plastic casings, etc., and generate little heat, so heat dissipation fins can be omitted to reduce material usage;
[0018] The horizontal heat dissipation fins exhaust the hot air from the back of the shell, while the vertical heat dissipation fins exhaust the hot air from the left and right sides of the shell, increasing the exhaust direction of the hot air.
[0019] The transition area has higher heat levels. As the intersection of the horizontal and vertical heat dissipation fins, the air turbulence is greater, allowing the air to absorb heat from the heat dissipation fins more fully and increasing the amount of heat absorbed by the air.
[0020] The arc-shaped heat dissipation fins in the transition area guide heat to flow out from between the horizontal or vertical heat dissipation fins.
[0021] In summary, the design of horizontal, vertical, and arc-shaped heat dissipation fins improves heat dissipation efficiency and enhances the heat dissipation effect of the fins without adding additional heat dissipation fin material. Attached Figure Description
[0022] Figure 1 A three-dimensional schematic diagram of the existing shell;
[0023] Figure 2 This is a three-dimensional schematic diagram of Embodiment 1 of the present utility model;
[0024] Figure 3 This is a three-dimensional schematic diagram of another embodiment of the present utility model;
[0025] Figure 4 This is a top view of Embodiment 1 of the present utility model;
[0026] Figure 5 Temperature contour plot of the existing casing;
[0027] Figure 6 This is a temperature cloud map of Embodiment 1 of this utility model.
[0028] Explanation of reference numerals in the attached drawings: 1. Shell; 11. Blank area; 12. Transition area; 13. Outer area; 14. Inner area; 2. Heat dissipation rib; 21. Middle heat dissipation rib; 22. Horizontal heat dissipation rib; 23. Longitudinal heat dissipation rib; 24. Arc-shaped heat dissipation rib; 25. Cylindrical heat dissipation rib; 26. Front heat dissipation rib; 27. Short heat dissipation rib. Detailed Implementation
[0029] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0030] Example 1, as Figures 2-4 As shown, a housing structure of a controller includes a housing 1 and vertically arranged heat dissipation ribs 2 disposed on the outer surface of the housing 1. A middle heat dissipation rib 21 extending to the edge of the housing 1 is disposed in the middle of the housing 1. For ease of explanation, when the heat dissipation ribs of the housing 1 are placed vertically, the direction of the heat dissipation ribs relative to the housing 1 is upward, and the extension direction of the middle heat dissipation rib 21 is left and right. A blank area 11 without heat dissipation ribs is disposed on one side of the middle heat dissipation rib 21, and this side is used as the front side of the housing 1. A "V"-shaped transition area 12 with an opening facing the rear edge of the housing 1 is disposed at the rear of the middle heat dissipation rib 21. The area of the housing 1 located between the outer side of the transition area 12 and the middle heat dissipation rib 21 is the outer area 13, and the area located between the inner side of the transition area 12 and the edge of the housing 1 is the inner area 14.
[0031] Five transverse heat dissipation ribs 22 are provided on each of the left and right sides of the outer region 13, and the transverse heat dissipation ribs 22 become shorter towards the back. The transverse heat dissipation ribs 22 are parallel to the middle heat dissipation rib 21. Ten longitudinal heat dissipation ribs 23 are provided in the inner region 14. Five arc-shaped heat dissipation ribs 24 are provided on each of the left and right sides of the transition region 12. The arc-shaped heat dissipation ribs 24 are parallel to each other and their protrusions face inward towards the inside of the shell 1. That is, the transverse heat dissipation ribs 22, the longitudinal heat dissipation ribs 23, and the arc-shaped heat dissipation ribs 24 are all in one-to-one correspondence.
[0032] The arc-shaped heat dissipation rib 24 is not connected to the longitudinal heat dissipation rib 23 and the transverse heat dissipation rib 22. The end of the arc-shaped heat dissipation rib 24 near the longitudinal heat dissipation rib 23 is staggered with the end of the longitudinal heat dissipation rib 23, and the end of the arc-shaped heat dissipation rib 24 near the transverse heat dissipation rib 22 is staggered with the end of the transverse heat dissipation rib 22.
[0033] The arc-shaped heat dissipation fins 24 are staggered with the longitudinal heat dissipation fins 23 and the transverse heat dissipation fins 22, which increases the disturbance when the air flows downward to this point, increases the amount of heat absorbed by the air at the heat dissipation fins, and improves the heat dissipation efficiency.
[0034] Two cylindrical heat dissipation fins 25 are provided near the center of the casing 1, and the cylindrical heat dissipation fins 25 are located behind the middle heat dissipation fin 21.
[0035] Because the density of the heat dissipation fins at the center is relatively high, it cannot accommodate long strip heat dissipation fins. The cylindrical heat dissipation fins 25, while making full use of the space, work in conjunction with the arc-shaped heat dissipation fins 24 to increase the disturbance of the air entering this area from above, increase the convection and radiation between the air and the heat dissipation fins, improve the absorption of heat by the air, and improve the heat dissipation efficiency.
[0036] Both the longitudinal heat dissipation fins 23 and the transverse heat dissipation fins 22 are symmetrically distributed from left to right, and the longitudinal heat dissipation fins 23 and the transverse heat dissipation fins 22 correspond one-to-one, so that the heat is dissipated more evenly during heat dissipation.
[0037] Several U-shaped, forward-facing front heat dissipation ribs 26 are also provided between the blank area 11 and the central heat dissipation rib 21. The middle part of the front heat dissipation rib 26 is parallel to the central heat dissipation rib 21, and both ends of the front heat dissipation rib 26 extend to the edge of the shell 1. The front heat dissipation ribs 26 improve the heat dissipation capacity of the edge of the blank area 11.
[0038] The housing 1 has short heat dissipation ribs 27 in the area between the two ends of the front heat dissipation rib 26 and the middle heat dissipation rib 21. One end of the short heat dissipation rib 27 extends to the edge of the housing 1, and the other end faces the middle heat dissipation rib 21 and does not connect with the middle heat dissipation rib 21, thereby improving the heat dissipation capacity of the edge of the blank area 11.
[0039] The short heat dissipation fin 27 is parallel to the end of the front heat dissipation fin 26, which increases the air outflow rate.
[0040] All cooling fins are integrally formed by die casting, with a draft angle between 1 and 1.5°.
[0041] Compared with the prior art, this embodiment has the following beneficial effects:
[0042] Blank area 11 is used for arranging cables and plastic housings, etc., and generates little heat, so the heat dissipation fins can be omitted to reduce the amount of material used;
[0043] The horizontal heat dissipation fins 22 exhaust the hot air in the middle from the rear of the shell 1, and the vertical heat dissipation fins 23 exhaust the hot air in the middle from the left and right sides of the shell 1, increasing the exhaust direction of the hot air.
[0044] The transition area 12 has a higher heat content. As the intersection of the horizontal heat dissipation fins 22 and the vertical heat dissipation fins 23, the air turbulence is greater, and the air can more fully absorb the heat from the heat dissipation fins, thus increasing the amount of heat absorbed by the air.
[0045] The arc-shaped heat dissipation fins 24 in the transition area 12 guide heat to flow out from between the horizontal heat dissipation fins 22 or the vertical heat dissipation fins 23.
[0046] In summary, the horizontal heat dissipation fins 22, the vertical heat dissipation fins 23, and the arc-shaped heat dissipation fins 24, without adding heat dissipation fin material, improve heat dissipation efficiency and enhance the heat dissipation effect of the heat dissipation fins. Numerical simulations have verified this. Figure 5 and Figure 6 The temperature cloud diagrams for the existing solution and this embodiment are shown respectively. Compared with the original solution, the heat dissipation effect achieved by this design solution reduces the average temperature of the module by 1.59℃ and reduces the volume of materials used by 22.23%.
[0047] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
Claims
1. A housing structure for a controller, comprising a housing (1) and vertically arranged heat dissipation fins disposed on the outer surface of the housing (1), characterized in that, The housing (1) has a central heat dissipation rib (21) extending to the edge of the housing (1) at both ends. The housing (1) has a blank area (11) without heat dissipation ribs in front of the central heat dissipation rib (21). The housing (1) has a "V"-shaped transition area (12) with an opening facing the rear edge of the housing (1) in the rear of the central heat dissipation rib (21). The area of the housing (1) between the outer side of the transition area (12) and the central heat dissipation rib (21) is the outer area (13). The area between the inner side of the transition area (12) and the edge of the housing (1) is the inner area (14). The outer region (13) is provided with a number of transverse heat dissipation ribs (22) that run through the outer region (13), and the transverse heat dissipation ribs (22) are parallel to the middle heat dissipation ribs (21). The inner region (14) is provided with a number of longitudinal heat dissipation ribs (23) that run through the inner region (14). The transition region (12) is provided with arc-shaped heat dissipation ribs (24), and the arc-shaped heat dissipation ribs (24) protrude towards the interior of the shell (1).
2. The housing structure of the controller according to claim 1, characterized in that, The arc-shaped heat dissipation rib (24) is not connected to the longitudinal heat dissipation rib (23) and the transverse heat dissipation rib (22). The end of the arc-shaped heat dissipation rib (24) near the longitudinal heat dissipation rib (23) is staggered with the end of the longitudinal heat dissipation rib (23). The end of the arc-shaped heat dissipation rib (24) near the transverse heat dissipation rib (22) is staggered with the end of the transverse heat dissipation rib (22).
3. The housing structure of the controller according to claim 1 or 2, characterized in that, The housing (1) is provided with a number of cylindrical heat dissipation ribs (25) near the center, and the cylindrical heat dissipation ribs (25) are located behind the central heat dissipation rib (21).
4. The housing structure of the controller according to claim 1 or 2, characterized in that, The longitudinal heat dissipation ribs (23) and the transverse heat dissipation ribs (22) are symmetrically distributed from left to right, and the longitudinal heat dissipation ribs (23) and the transverse heat dissipation ribs (22) correspond one-to-one.
5. The housing structure of the controller according to claim 1 or 2, characterized in that, Several "U"-shaped front heat dissipation ribs (26) with openings facing forward are also provided between the blank area (11) and the middle heat dissipation rib (21). The middle part of the front heat dissipation rib (26) is parallel to the middle heat dissipation rib (21), and the two ends of the front heat dissipation rib (26) extend to the edge of the shell (1).
6. The housing structure of the controller according to claim 5, characterized in that, The housing (1) has short heat dissipation ribs (27) in the area between the two ends of the front heat dissipation rib (26) and the middle heat dissipation rib (21).
7. The housing structure of the controller according to claim 6, characterized in that, The short heat dissipation fin (27) is parallel to the end portion of the front heat dissipation fin (26).
8. The housing structure of the controller according to claim 1 or 2, characterized in that, All the aforementioned heat dissipation fins are integrally formed by die casting, with a draft angle of 1-1.5°.