A production mold for a motor case

By introducing a combination design of rotating sleeve, rotating insert block and sealing plate into the motor housing production mold, the problem of the inflexible adjustment of the cooling system is solved, and the precise forming and uniform cooling of the motor housing are achieved, thereby improving production efficiency and quality.

CN224408330UActive Publication Date: 2026-06-26NINGBO QIGUZE PRECISION AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO QIGUZE PRECISION AUTO PARTS CO LTD
Filing Date
2025-08-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The cooling system of the existing motor housing production mold cannot flexibly adjust the cooling rate, resulting in uneven cooling, which affects the quality of the mold and the motor housing and production efficiency.

Method used

A motor housing production mold was designed, comprising a forming mechanism, a cooling water regulating mechanism, and an regulating auxiliary mechanism. Through the combination of a rotating sleeve, a rotating insert block, and a sealing plate, precise control of the cooling water flow rate is achieved. Combined with the cooperation of an external gear ring and a damping ring, a smooth regulating effect is provided.

Benefits of technology

This technology enables precise molding and uniform cooling of the motor housing, improves production efficiency and mold stability, reduces the formation of bubbles and defects, and ensures the shape and dimensional accuracy of the motor housing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a production mould of motor shell, including forming mechanism, cooling water adjusting mechanism and adjusting auxiliary mechanism, the forming mechanism includes upper module and bottom module, the cooling water adjusting mechanism includes adjusting pipe and rotating sleeve, the adjusting auxiliary mechanism includes outer tooth ring and damping ring, and the forming mechanism realizes the accurate forming of motor shell through the cooperation of upper module, bottom module, forming block and forming groove, and the design of injection moulding hole through forming block ensures that injection moulding material fills evenly, optimizes injection moulding path, reduces bubble and defect formation, and the combination design of adjusting pipe and rotating sleeve is adopted to cooling water adjusting mechanism, realizes the accurate control to cooling water flow, and the cooperation structure of spin -in block and plugging board can change the flow area of adjusting pipe to adjust the cooling rate, and spin -in block provides constant pressure, ensures that the adjusting system is stable and reliable.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, and more specifically, to a production mold for an electric motor housing. Background Technology

[0002] In existing technologies, motor housing production molds are widely used in large-scale motor housing molding processes. The design and manufacture of these molds are key factors in ensuring product quality and production efficiency. However, many current motor housing production molds have limitations in their molding cooling systems, particularly in terms of cooling rate adjustment.

[0003] Currently, many mold cooling systems use fixed cooling pipes or heat dissipation structures, which cannot flexibly adjust the cooling rate according to the needs of different working conditions during production. Since the motor housing is subjected to high temperature and high pressure during the molding process, the cooling process is directly related to the quality of the mold and the motor housing. If the cooling rate is too fast, it may cause uneven thermal expansion of the mold, which will affect the shape and dimensional accuracy of the motor housing. On the other hand, if the cooling rate is too slow, it may lead to a longer production cycle and affect production efficiency.

[0004] Because the current cooling system has a relatively simple structure, the distribution of cooling water flow is often uneven, resulting in some parts of the mold being cooled too strongly, while other parts are cooled too weakly. This uneven cooling may cause local overheating or overcooling of the mold, which in turn affects the quality of the entire motor housing. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a production mold for motor housing, so as to solve the technical problems mentioned in the background art, such as the inconvenience of adjusting the molding cooling speed of the mold.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a production mold for a motor housing, comprising a forming mechanism, a cooling water regulating mechanism, and an regulating auxiliary mechanism. The forming mechanism includes an upper module and a lower module. A forming block is installed on the upper module, and a forming groove is installed on the lower module. The forming block and the forming groove are fitted together for extrusion forming. A cooling pipe is installed inside the lower module. The cooling water regulating mechanism includes a regulating pipe and a rotating sleeve. The rotating sleeve is rotatably mounted on the side wall of the regulating pipe. A rotating insert block is installed inside the rotating sleeve. A sealing plate is installed on the rotating insert block. A rotating push spring is installed between the rotating insert block and the rotating sleeve. A wall slot is formed on the outer wall of the regulating pipe. The rotating push spring pushes the rotating insert block to move on the wall slot. The rotating sleeve is rotated in the opposite direction, causing one end of the wall slot to push the rotating insert block, causing the rotating insert block to retract. The sealing plate can change the flow area of ​​the regulating pipe.

[0009] The present invention is further configured such that the adjustment auxiliary mechanism includes an external toothed ring and a damping ring. The external toothed ring is symmetrically installed at the top and bottom ends of the rotating sleeve. A double-headed toothed rod is longitudinally supported and rotatably installed on the outer wall of the adjustment tube. The damping ring is rotatably installed on the outer wall of the adjustment tube and is designed to increase friction on the inner wall of the damping ring. The two ends of the double-headed toothed rod are meshed with the outer walls of the external toothed ring and the damping ring.

[0010] The present invention is further configured such that the upper module has an injection hole, and the injection hole is disposed through the molding block. The design of the injection hole through the molding block ensures uniform filling of the injection material, optimizes the injection path, and reduces the formation of bubbles and defects.

[0011] The present invention is further configured such that an embedding rod is installed on the upper module and an embedding groove is opened on the lower module, and the embedding rod and the embedding groove are coordinated and guided. The embedding rod and the embedding groove provide a precise guiding and positioning function to ensure the mold closing accuracy of the upper and lower modules and prevent misalignment.

[0012] The present invention is further configured such that a return water pipe is installed at one end of the regulating pipe, and a water inlet pipe is installed at one end of the other regulating pipe, and the two regulating pipes are connected to both ends of the cooling pipe.

[0013] The present invention is further configured such that a support plate is installed at one end of the regulating pipe, and the support plate is fixedly installed on one end face of the bottom module. The support plate and the connecting plate provide a firm fixed support point to ensure that the regulating pipe is securely connected to the bottom module and the water pipe system.

[0014] The present invention is further configured such that a support plate is fixedly installed on the outer wall of the regulating tube, and the double-headed rack is rotatably mounted on the support plate. The support plate provides a stable rotation fulcrum for the double-headed rack, thereby enhancing the overall structural strength and improving the system reliability.

[0015] The present invention is further configured such that a connecting plate is installed at one end of the regulating pipe, and the connecting plate is connected to the inlet pipe and the return pipe. The inlet pipe and the return pipe are designed to connect the two ends of the cooling pipe to ensure uniform cooling effect.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a production mold for motor housing, which has the following beneficial effects:

[0018] This utility model is equipped with a molding mechanism. Through the cooperation of the upper module, the lower module, the molding block and the molding groove, the molding mechanism realizes the precise molding of the motor housing. The design of the injection hole penetrating through the molding block ensures that the injection material is filled evenly, optimizes the injection path and reduces the formation of bubbles and defects. The design of the embedded rod and the embedded groove provides a precise guiding and positioning function, ensures the mold closing accuracy of the upper and lower modules and prevents misalignment. The cooling pipes in the lower module are reasonably arranged to provide a uniform cooling effect and accelerate the molding process.

[0019] This utility model is equipped with a cooling water regulating mechanism. The cooling water regulating mechanism adopts a combination design of regulating pipe and rotating sleeve to achieve precise control of cooling water flow. The cooperative structure of rotating insert and sealing plate can change the flow area of ​​regulating pipe, thereby regulating the cooling rate. Rotary push spring provides constant pressure to ensure the stability and reliability of the regulating system. The design of support plate and connecting plate provides a solid fixed support point to ensure that the regulating pipe is firmly connected to the bottom module and water pipe system.

[0020] This utility model is equipped with an adjustment auxiliary mechanism, which provides a smooth and precise adjustment effect through the cooperation of an external gear ring and a damping ring. The double-headed rack connects the external gear ring and the damping ring, realizing the precise transmission of force. The increased friction design on the inner wall of the damping ring provides appropriate resistance to prevent adjustment from being too fast or too violent. The support plate provides a stable rotation fulcrum for the double-headed rack, enhancing the overall structural strength and improving the reliability of the system. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the upper module in this utility model;

[0023] Figure 3 This is a schematic diagram of the cooling water regulating mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram of the cooling water regulating mechanism and the regulating auxiliary mechanism in this utility model;

[0025] Figure 5This is a schematic diagram of the internal structure of the cooling water regulating mechanism and the regulating auxiliary mechanism in this utility model.

[0026] In the diagram: 1. Upper module; 2. Bottom module; 3. Molding block; 4. Molding groove; 5. Cooling pipe; 6. Adjusting pipe; 7. Rotating sleeve; 8. Rotary insert block; 9. Sealing plate; 10. Rotary push spring; 11. Wall slot; 12. External toothed ring; 13. Damping ring; 14. Double-headed toothed rod; 15. Injection hole; 16. Embedded rod; 17. Embedded groove; 18. Return water pipe; 19. Inlet water pipe; 20. Support plate; 21. Support plate; 22. Connecting plate. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A production mold for an electric motor housing includes a forming mechanism, a cooling water regulating mechanism, and an regulating auxiliary mechanism. The forming mechanism includes an upper module 1 and a lower module 2. A forming block 3 is installed on the upper module 1, and a forming groove 4 is installed on the lower module. The forming block 3 and the forming groove 4 are configured for extrusion forming. A cooling pipe 5 is installed inside the lower module 2. The cooling water regulating mechanism includes a regulating pipe 6 and a rotating sleeve 7. The rotating sleeve 7 is rotatably mounted on the side wall of the regulating pipe 6. A rotating insert block 8 is installed inside the rotating sleeve 7. A sealing plate 9 is installed on the rotating insert block 8. A rotary push spring 10 is installed between the rotating insert block 8 and the rotating sleeve 7. A wall slot 11 is opened on the outer wall of the regulating pipe 6. The rotary push spring 10 pushes the rotating insert block 8 to move on the wall slot 11. The rotating sleeve 7 is rotated in the opposite direction, so that one end of the wall slot 11 pushes the rotating insert block 8, causing the rotating insert block 8 to retract. The sealing plate 9 can change the flow area of ​​the regulating pipe 6.

[0031] In this embodiment, the upper module 1 and the bottom module 2 are combined to form the molding space of the motor housing. The molding block 3 on the upper module 1 and the molding groove 4 on the bottom module 2 cooperate with each other. Material is injected into the molding space through the injection hole 15 of the upper module 1. The molding block 3 and the molding groove 4 compress the material to form the shape of the motor housing. The cooling pipe 5 in the bottom module 2 provides a cooling function to promote molding. Cooling water enters the regulating pipe 6 through the water inlet pipe 19 and then enters the cooling pipe 5. The rotating sleeve 7 is limited to rotating and installed on the side wall of the regulating pipe 6. The rotating insert block 8 cooperates with the sealing plate 9 to change the flow area of ​​the regulating pipe 6. The rotating push spring 10 pushes the rotating insert block 8 to move on the wall slot 11. When the rotating sleeve 7 is rotated in the opposite direction, the wall slot 11 pushes the rotating insert block 8 to retract. The position of the sealing plate 9 changes to adjust the flow area and control the cooling water flow rate. When the auxiliary mechanism needs to be adjusted, the external gear ring 12 is symmetrically installed at the top and bottom of the rotating sleeve 7, the double-headed rack 14 is longitudinally supported and rotatably installed on the outer wall of the adjusting tube 6, and the damping ring 13 is limited and rotatably installed on the outer wall of the adjusting tube 6. The inner wall is designed to increase friction. The two ends of the double-headed rack 14 are meshed with the external gear ring 12 and the damping ring 13. When the rotating sleeve 7 is rotated, the external gear ring 12 drives the double-headed rack 14 to rotate, and the double-headed rack 14 drives the damping ring 13 to rotate, providing appropriate resistance to ensure smooth adjustment.

[0032] The adjustment auxiliary mechanism includes an external gear ring 12 and a damping ring 13. The external gear ring 12 is symmetrically installed at the top and bottom ends of the rotating sleeve 7. A double-headed toothed rod 14 is longitudinally supported and rotatably installed on the outer wall of the adjustment tube 6. The damping ring 13 is rotatably installed on the outer wall of the adjustment tube 6. The inner wall of the damping ring 13 is designed to increase friction. The two ends of the double-headed toothed rod 14 are meshed with the outer walls of the external gear ring 12 and the damping ring 13.

[0033] In this embodiment, the external toothed ring 12 is symmetrically installed at the top and bottom of the rotating sleeve 7, the double-headed toothed rod 14 is longitudinally supported and rotatably installed on the outer wall of the adjusting tube 6, and the damping ring 13 is limited and rotatably installed on the outer wall of the adjusting tube 6. The inner wall is designed to increase friction. The two ends of the double-headed toothed rod 14 are meshed with the external toothed ring 12 and the damping ring 13. When the rotating sleeve 7 is rotated, the external toothed ring 12 drives the double-headed toothed rod 14 to rotate, and the double-headed toothed rod 14 drives the damping ring 13 to rotate, providing appropriate resistance to ensure smooth adjustment.

[0034] Please see Figures 1-5As a supplementary embodiment of the production mold for a motor housing, which is a cooling water regulating mechanism and a regulating auxiliary mechanism: The upper module 1 has an injection hole 15, which is provided through the molding block 3. An embedded rod 16 is installed on the upper module 1. An embedded groove 17 is provided on the bottom module 2. The embedded rod 16 and the embedded groove 17 are coordinated and guided. A return water pipe 18 is installed at one end of the regulating pipe 6. A water inlet pipe 19 is installed at one end of the other set of regulating pipes 6. The two sets of regulating pipes 6 are connected to both ends of the cooling pipe 5. A support plate 20 is installed at one end of the regulating pipe 6. The support plate 20 is fixedly installed on one end face of the bottom module 2. A support plate 21 is fixedly installed on the outer wall of the regulating pipe 6. A double-headed toothed rod 14 is limited and rotated on the support plate 21. A connecting plate 22 is installed at one end of the regulating pipe 6. The connecting plate 22 is connected to the water inlet pipe 19 and the return water pipe 18.

[0035] More specifically, the upper module 1 and the lower module 2 are aligned and installed via the embedded rod 16 and the embedded groove 17. The cooling water system is connected and ready. The regulating pipe 6 is connected to the inlet pipe 19 and the return pipe 18. The regulating pipe 6 is fixedly connected to the lower module 2 via the support plate 20 and the connecting plate 22. The upper module 1 and the lower module 2 are closed. The molding block 3 and the molding groove 4 form a mold cavity. Material is injected into the mold cavity through the injection hole 15. The material is molded under pressure in the mold cavity. Cooling water enters the cooling pipe 5 system through the inlet pipe 19. The position of the sealing plate 9 is adjusted by rotating the rotating sleeve 7. The sealing plate 9 changes the flow area of ​​the regulating pipe 6 and controls the flow rate of cooling water. The adjustment auxiliary mechanism provides a stable damping effect to ensure precise adjustment. After the material is fully cooled and molded, the upper module 1 and the lower module 2 are separated, and the molded motor housing is taken out.

[0036] In summary, when the overall equipment is in use or running: when the molding mechanism is running, the upper module 1 and the lower module 2 combine to form the molding space of the motor housing. The molding block 3 on the upper module 1 and the molding groove 4 on the lower module 2 cooperate with each other. Material is injected into the molding space through the injection hole 15 of the upper module 1. The molding block 3 and the molding groove 4 squeeze the material to form the shape of the motor housing. The cooling pipe 5 in the lower module 2 provides a cooling function to promote molding.

[0037] When the cooling water regulating mechanism is in operation, cooling water enters the regulating pipe 6 through the inlet pipe 19, and then enters the cooling pipe 5. The rotating sleeve 7 is rotatably mounted on the side wall of the regulating pipe 6. The rotating insert block 8 cooperates with the sealing plate 9 to change the flow area of ​​the regulating pipe 6. The rotating push spring 10 pushes the rotating insert block 8 to move on the wall slot 11. When the rotating sleeve 7 is rotated in the opposite direction, the wall slot 11 pushes the rotating insert block 8 back. The position of the sealing plate 9 changes to adjust the flow area and control the cooling water flow. When the auxiliary regulating mechanism is in operation, the outer toothed ring 12 is symmetrically mounted on the top and bottom of the rotating sleeve 7. The double-headed rack 14 is longitudinally supported and rotatably mounted on the outer wall of the regulating pipe 6. The damping ring 13 is rotatably mounted on the outer wall of the regulating pipe 6. The inner wall design increases friction. The two ends of the double-headed rack 14 are meshed with the outer toothed ring 12 and the damping ring 13. When the rotating sleeve 7 is rotated, the outer toothed ring 12 drives the double-headed rack 14 to rotate, and the double-headed rack 14 drives the damping ring 13 to rotate, providing appropriate resistance to ensure smooth regulation.

[0038] When the auxiliary mechanism needs to be adjusted, the external gear ring 12 is symmetrically installed at the top and bottom of the rotating sleeve 7, the double-headed rack 14 is longitudinally supported and rotatably installed on the outer wall of the adjusting tube 6, and the damping ring 13 is limited and rotatably installed on the outer wall of the adjusting tube 6. The inner wall is designed to increase friction. The two ends of the double-headed rack 14 are meshed with the external gear ring 12 and the damping ring 13. When the rotating sleeve 7 is rotated, the external gear ring 12 drives the double-headed rack 14 to rotate, and the double-headed rack 14 drives the damping ring 13 to rotate, providing appropriate resistance to ensure smooth adjustment.

[0039] The upper module 1 and the lower module 2 are aligned and installed via the embedded rod 16 and the embedded groove 17. The cooling water system is connected and ready. The regulating pipe 6 is connected to the inlet pipe 19 and the return pipe 18. The regulating pipe 6 is fixedly connected to the lower module 2 via the support plate 20 and the connecting plate 22. The upper module 1 and the lower module 2 are closed. The molding block 3 and the molding groove 4 form a mold cavity. Material is injected into the mold cavity through the injection hole 15. The material is molded under pressure in the mold cavity. Cooling water enters the cooling pipe 5 system through the inlet pipe 19. The position of the sealing plate 9 is adjusted by rotating the rotating sleeve 7. The sealing plate 9 changes the flow area of ​​the regulating pipe 6 and controls the flow rate of cooling water. The adjustment auxiliary mechanism provides a stable damping effect to ensure precise adjustment. After the material is fully cooled and molded, the upper module 1 and the lower module 2 are separated, and the molded motor housing is taken out.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0041] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise explicitly described, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here. In all the solutions mentioned above, those involving motors can be used with a reducer if necessary. The connection structure and working principle between the motor and the reducer are existing, well-known technologies, and will not be elaborated here.

Claims

1. A production mold for an electric motor housing, comprising a forming mechanism, a cooling water regulating mechanism, and an regulating auxiliary mechanism, characterized in that: The molding mechanism includes an upper module (1) and a lower module (2). A molding block (3) is installed on the upper module (1), and a molding groove (4) is installed on the lower module. The molding block (3) and the molding groove (4) are used for extrusion molding. A cooling pipe (5) is installed inside the lower module (2). The cooling water regulating mechanism includes a regulating pipe (6) and a rotating sleeve (7). The rotating sleeve (7) is rotatably mounted on the side wall of the regulating pipe (6), and a rotating insert is installed inside the rotating sleeve (7). (8) A sealing plate (9) is installed on the rotating block (8). A rotary push spring (10) is installed between the rotating block (8) and the rotating sleeve (7). A wall slot (11) is opened on the outer wall of the regulating pipe (6). The rotary push spring (10) pushes the rotating block (8) to move on the wall slot (11). The rotating sleeve (7) rotates in the opposite direction, so that one end of the wall slot (11) pushes the rotating block (8) and the rotating block (8) retracts. The sealing plate (9) can change the flow area of ​​the regulating pipe (6).

2. The production mold for a motor housing according to claim 1, characterized in that: The adjustment auxiliary mechanism includes an external gear ring (12) and a damping ring (13). The external gear ring (12) is symmetrically installed at the top and bottom ends of the rotating sleeve (7). A double-headed toothed rod (14) is longitudinally supported and rotatably installed on the outer wall of the adjustment tube (6). The damping ring (13) is rotatably installed on the outer wall of the adjustment tube (6). The inner wall of the damping ring (13) is designed to increase friction. The two ends of the double-headed toothed rod (14) are meshed with the outer walls of the external gear ring (12) and the damping ring (13).

3. The production mold for a motor housing according to claim 1, characterized in that: The upper module (1) is provided with an injection hole (15), and the injection hole (15) is provided through the molding block (3).

4. The production mold for a motor housing according to claim 1, characterized in that: The upper module (1) is provided with an embedded rod (16), and the lower module (2) is provided with an embedded groove (17), and the embedded rod (16) and the embedded groove (17) are coordinated and guided.

5. The production mold for a motor housing according to claim 1, characterized in that: One end of the regulating pipe (6) is equipped with a return water pipe (18), and one end of the other regulating pipe (6) is equipped with an inlet water pipe (19). The two regulating pipes (6) are connected to both ends of the cooling pipe (5).

6. The production mold for a motor housing according to claim 1, characterized in that: One end of the regulating tube (6) is provided with a support plate (20), and the support plate (20) is fixedly installed on one end face of the bottom module (2).

7. The production mold for a motor housing according to claim 3, characterized in that: A support plate (21) is fixedly installed on the outer wall of the regulating tube (6), and a double-headed toothed rod (14) is limited to rotate and installed on the support plate (21).

8. The production mold for a motor housing according to claim 5, characterized in that: One end of the regulating pipe (6) is equipped with a connecting plate (22), and is connected to the inlet pipe (19) and the return pipe (18) through the connecting plate (22).