A multi-channel cooling motor housing with adjustable inner diameter

By designing a spiral winding structure and a flow guiding channel, the problem of poor versatility of motor housing molds was solved, enabling efficient and low-cost molding of motor housings with different inner diameters, thus improving processing efficiency and precision.

CN224438667UActive Publication Date: 2026-06-30DEZHOU RUSTAI ALUMINUM CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEZHOU RUSTAI ALUMINUM CO LTD
Filing Date
2025-04-15
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing motor housing molds have poor versatility, resulting in high manufacturing costs and low processing efficiency for motor housings with different inner diameters.

Method used

The multi-channel cooling adjustable inner diameter motor housing adopts a spiral winding structure. The overall molding of the motor housing is achieved by combining the central guide zone and the side end caps. By using the connection method of the guide channel and the stepped port, combined with the transition block and welding groove, motor housings with different inner diameter sizes can be formed.

Benefits of technology

It reduces the manufacturing cost of the motor housing, improves processing efficiency and precision, simplifies the structure of the motor housing, and achieves efficient one-piece molding of the internal flow channel of the motor housing.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224438667U_ABST
    Figure CN224438667U_ABST
Patent Text Reader

Abstract

This utility model discloses a multi-channel cooling motor housing with adjustable inner diameter. The central flow guiding area employs a spiral winding structure, with flow guiding channels inside. An inlet and outlet are located at the ends of the central flow guiding area. Inner stepped ports are located at both ends of the central flow guiding area. Outer stepped ports with side end caps are connected to the inner stepped ports. Insertion holes or locking holes are provided on the outer surface of the side end caps for connection to the motor end caps. This structure allows for the compact winding of long strip profiles to form motor housings of different inner diameters, effectively reducing manufacturing costs. The flow guiding channels inside the motor housing are integrally formed with the profile, resulting in high processing efficiency, high precision, and low manufacturing costs. The side end caps of the motor housing are welded together as a single unit, making the motor housing simpler.
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Description

Technical Field

[0001] This utility model belongs to the field of motor housing technology, specifically relating to a multi-channel cooling motor housing with adjustable inner diameter. Background Technology

[0002] With the development of small precision motors in China, most existing motors use aluminum alloy housings with better heat dissipation. These housings are usually circular in structure. By machining through holes inside the housing and then connecting the through holes to each other, cooling water can be guided into the interior, thereby achieving internal cooling of the motor.

[0003] However, the existing technical problems are as follows: 1. When manufacturing motor housings, motor housings with different inner diameters must be formed using different molds. Poor mold versatility leads to increased manufacturing costs for motor housings; 2. Through holes inside the motor housing must be machined on the outside or using deep hole cutting tools, resulting in low processing efficiency and high manufacturing costs.

[0004] In view of the current installation drawbacks in the field of motors, as people skilled in the art, there is an urgent need to design a multi-channel cooling inner diameter adjustable motor housing, which is formed by spiral winding and curling. This can realize the forming of motors with multiple outer diameters. This structure can effectively avoid the use of multiple molds, effectively reduce the production time and cost, and improve the forming efficiency of motors. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this utility model provides a multi-channel cooling inner diameter adjustable motor housing, which uses a straight plate profile to integrally form a flow guiding chamber inside. The integral forming is achieved by spiral winding during the forming process. This forming structure can be processed with different inner diameters according to requirements to meet actual production needs.

[0006] To achieve the above technical objectives, the present invention adopts the following solution: a multi-channel cooling inner diameter adjustable motor housing, which includes a central flow guide area and side end caps;

[0007] The central flow guiding area has a spiral winding structure, and a flow guiding channel is provided inside the central flow guiding area. An inlet and an outlet are provided at the end of the central flow guiding area. Inner step ports are provided at both ends of the central flow guiding area. The inner step ports are connected to the outer step ports of the side end caps. Insertion holes or threaded holes are provided on the outer surface of the side end caps to connect with the motor end caps.

[0008] A transition block is provided between the inner step port and the outer step port. The inner step port and the transition block are connected by a concave-convex insertion fit, and an inner welding groove is provided between the transition block and the inner step port.

[0009] A transition block is provided between the inner step port and the outer step port. The outer step port and the transition block are connected by a concave-convex insertion fit, and an outer welding groove is provided between the transition block and the outer step port.

[0010] The beneficial effects of this utility model are as follows: Through the above-described design, the central guide zone adopts a spiral winding structure, with a guide channel inside. An inlet and an outlet are provided at the ends of the central guide zone. Inner stepped ports are provided at both ends of the central guide zone. Outer stepped ports with side end caps are connected to the inner stepped ports. Insertion holes or locking holes are provided on the outer surface of the side end caps to connect with the motor end caps. This structural design allows for the compact winding of long strip profiles to form motor housings of different inner diameters, effectively reducing the manufacturing cost of the motor housing. The guide channel inside the motor housing is integrally formed with the profile, resulting in high processing efficiency, high precision, and low manufacturing cost. The side end caps of the motor housing are welded together as a single unit, making the motor housing simpler. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the three-dimensional disassembled structure of this utility model;

[0013] Figure 3 for Figure 2 Enlarged schematic diagram of the structure of region A in the middle;

[0014] Figure 4 This is a schematic diagram of the internal structure of a straight-panel structural profile.

[0015] In the attached image:

[0016] 1. Central guide zone; 10. Profile; 11. Liquid inlet; 12. Liquid outlet; 13. Inner step port; 14. Guide channel; 15. Groove; 2. Left side end cap; 21. Outer step port; 3. Right side end cap; 31. Threaded hole; 4. Transition block; 41. Inner welding groove; 42. Outer welding groove; 43. Protrusion. Detailed Implementation

[0017] As shown in the attached drawings, this utility model discloses a multi-channel cooling motor housing with adjustable inner diameter, which transforms the original cylindrical profile into a plate profile. Figure 4 As shown, by using profiles 10 of different lengths, different lengths are designed according to different outer diameters, such as... Figure 3 As shown, a compact circular ring is then formed using a winding device, thereby enabling the forming of motor housings with different inner diameters.

[0018] like Figure 1 As shown, a multi-channel cooling inner diameter adjustable motor housing includes a central flow guide area 1 and side end covers, wherein the side end covers are a left side end cover 2 and a right side end cover 3.

[0019] The central guide zone 1 is a spiral wound structure of profile 10. A guide channel 14 is provided inside the central guide zone 1. An inlet 11 and an outlet 12 are provided at the end of the central guide zone 1. An inner step port 13 is provided at both ends of the central guide zone 1. The inner step port 13 is connected to the outer step port 21 of the side end cover. In this embodiment, side end covers are provided on both the left and right sides of the central guide zone 1, namely the left side end cover 2 and the right side end cover 3. Insertion holes or threaded holes are provided on the outer surfaces of the left side end cover 2 and the right side end cover 3 to connect with the motor end cover.

[0020] When connecting the ends of the middle guide zone 1, in order to improve the stability of the connection, a transition block 4 is provided between the inner step port 13 and the outer step port 21. When welding with the left side end cap 2 or the right side end cap 3, the inner step port 13 and the transition block 4 are in a concave-convex insertion fit. In this embodiment, the inner step port 13 on the profile 10 is provided with a groove 15, and the transition block 4 is provided with a protrusion 43 corresponding to the groove 15. The concave-convex fit between the two can increase the stability of the combination.

[0021] Furthermore, when the left side end cap 2 or the right side end cap 3 is combined with the central guide area 1, an inner welding slope and an outer welding slope are provided on the transition block 4. When combined with the left side end cap 2 or the right side end cap 3, an inner welding groove 41 and an outer welding groove 42 are formed, which can be used as weld points to increase the welding adhesion surface and increase the solder area, thereby improving the welding effect.

[0022] Furthermore, it can be understood that an inner welding groove 41 is provided between the inner step port 13 and the transition block 4. An outer welding groove 42 is provided between the outer step port 21 and the transition block 4.

[0023] With this structural design, those skilled in the art can compactly wind the long strip profile 10 to form motor housings with different inner diameters, effectively reducing the manufacturing cost of the motor housing; the internal flow channel of this motor housing is integrally formed with the profile, resulting in high processing efficiency, high precision, and low manufacturing cost; the side end caps of the motor housing are welded into one piece, making the motor housing simpler.

[0024] With the above structural design, those skilled in the art can achieve, for example, using a stretching die. Figure 4The plate shown is formed, and then the plate is cut into different lengths according to different requirements by a cutting device. Then, the motor housing with different inner diameters can be rolled into profiles by a winding mold.

[0025] This processing method reduces the manufacturing cost of the motor housing. The through holes inside the motor housing are formed with the profile, resulting in high processing efficiency and precision, and low manufacturing cost. The motor housing is welded into one piece on the side, eliminating the need for end caps and making the motor housing simpler.

Claims

1. A multi-channel cooling motor housing with adjustable inner diameter, characterized in that: It includes a central guide zone and side end caps; The central flow guiding area has a spiral winding structure, and a flow guiding channel is provided inside the central flow guiding area. An inlet and an outlet are provided at the end of the central flow guiding area. Inner step ports are provided at both ends of the central flow guiding area. The inner step ports are connected to the outer step ports of the side end caps. Insertion holes or threaded holes are provided on the outer surface of the side end caps to connect with the motor end caps.

2. The multi-channel cooling adjustable inner diameter motor housing as described in claim 1, characterized in that... A transition block is provided between the inner step port and the outer step port. The inner step port and the transition block are connected by a concave-convex insertion fit, and an inner welding groove is provided between the transition block and the inner step port.

3. The multi-channel cooling adjustable inner diameter motor housing as described in claim 1, characterized in that... A transition block is provided between the inner step port and the outer step port. The outer step port and the transition block are connected by a concave-convex insertion fit, and an outer welding groove is provided between the transition block and the outer step port.