Novel dry-wet dust collector motor end cover structure
By installing cooling fan blades, an air collector, and guide vanes on the motor end cover of a wet and dry vacuum cleaner, the airflow path is optimized, solving the problems of high noise, low efficiency, and large size in existing technologies. This results in a new type of wet and dry vacuum cleaner motor with a highly efficient motor. The cooling fan blades on the motor end cover address the high noise issue, solve the technical problems that were not resolved in existing technologies, optimize airflow smoothness and motor efficiency, and enhance motor heat dissipation and stability.
Patent Information
- Application Number
- CN202423009475.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing wet and dry vacuum cleaners use radial airflow on their motor end caps, resulting in high noise, low efficiency, and large size, which cannot meet the increasingly demanding requirements of home environments.
A novel end cap structure for a wet and dry vacuum cleaner motor is designed. By setting cooling fan blades, an air collector hood, and guide vanes on the end cap, the airflow path is optimized, achieving the isolation and smooth discharge of hot and cold air, forming a hot and cold cycle.
It reduces airflow collision noise, improves airflow permeability and motor efficiency, enhances motor heat dissipation and stability, and optimizes the overall airflow management of the vacuum cleaner.
Smart Images

Figure CN223771838U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor end cover technology, specifically a novel dry and wet vacuum cleaner motor end cover structure. Background Technology
[0002] Most wet and dry vacuum cleaners on the market currently use a traditional radial airflow design for their motor end caps. While simple and reliable, this method has some drawbacks in practical applications, such as higher noise levels, lower efficiency, and larger size. As people's requirements for home environments increase, their demands for vacuum cleaner performance are also constantly rising, thus necessitating a new solution to address these issues in existing technology. Utility Model Content
[0003] The purpose of this utility model is to provide a novel end cap structure for a wet and dry vacuum cleaner motor to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel dry and wet vacuum cleaner motor end cover structure, including an end cover, with a cooling fan and a rotor assembly sequentially arranged at one end of the end cover, and an air collecting hood provided on the outside of the cooling fan and rotor assembly, the air collecting hood being connected to the end cover.
[0005] In a further optimized configuration, the cooling fan blades are press-fitted onto the rotor assembly and assembled with the end cover.
[0006] In a further optimized version, the air collecting hood comprises a protrusion on its inner wall and an isolation plate.
[0007] In a further optimized configuration, the air collecting hood and the end cap are assembled and connected via the protrusion.
[0008] In a further optimized version, the air collecting hood forms hot and cold chambers through isolation plates set on both sides.
[0009] Furthermore, the end cap is provided with a flow channel structure and also has guide vanes.
[0010] In a further optimized configuration, one end of the rotor assembly is provided with a moving impeller, and the outer side of the moving impeller is provided with a wind shield connected to the end cover.
[0011] In a further optimized configuration, the moving impeller is press-fitted onto the rotor assembly, and the fan shroud is press-fitted onto the upper end of the end cover, forming a fan duct. Cold air enters through the fan shroud inlet, and hot air is discharged through the end cover outlet.
[0012] Beneficial effects
[0013] The novel dry and wet vacuum cleaner motor end cover structure provided by this utility model features special guide vanes on the end cover. These vanes help the airflow smoothly change direction and reduce noise caused by airflow collision. By optimizing the internal structure of the end cover, the smoothness of airflow is increased and the resistance loss is reduced, thereby improving the working efficiency of the motor. The cooling fan is built into the motor, and the hot and cold air ducts are opened separately using an air collector and a partition. Ultimately, the simultaneous intake and exhaust at the top of the motor do not interfere with each other, which facilitates the air duct management of the entire vacuum cleaner. Attached Figure Description
[0014] Figure 1 This is a cross-sectional view of the overall structure of this utility model. Detailed Implementation
[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0016] Example
[0017] like Figure 1 As shown, a novel dry and wet vacuum cleaner motor end cover structure is characterized by: including an end cover 3, with a cooling fan blade 1 and a rotor assembly 2 sequentially arranged at one end of the end cover 3, and an air collecting hood 4 arranged on the outside of the cooling fan blade 1 and the rotor assembly 2, the air collecting hood 4 being connected to the end cover 3.
[0018] In this embodiment, the cooling fan blade 1 is press-fitted onto the rotor assembly 2 and assembled with the end cover 3.
[0019] The air collecting cover 4 consists of a protrusion 41 and an isolation plate 42 provided on its inner wall.
[0020] The air collector shroud 4 and the end cap 3 are assembled and connected by the protrusion 41.
[0021] The air collecting cover 4 forms a hot and cold chamber through the isolation plates 42 set on both sides.
[0022] The end cover 3 is equipped with a flow channel structure and guide vanes. The flow channel structure allows hot air to be discharged from both sides of the end cover, which provides better heat dissipation for the motor, ensures the service life of the motor, and makes the motor run more stably.
[0023] The cooling fan blades are press-fitted onto the rotor assembly and then assembled into the end cover. The air collector shroud is provided with protrusions and isolation plates, and the air collector shroud is assembled with the end cover through protrusions provided on its inner wall.
[0024] The cooling fan is located inside the motor and requires an air collector shroud to isolate hot and cold air, forming a hot and cold chamber. When the motor is running, the cooling fan rotates to draw cold air into the motor from the top of the rotor assembly to cool the motor, and then exhausts it through the hot chamber between the air collector shrouds, forming a complete hot and cold cycle.
[0025] One end of the rotor assembly is provided with a moving impeller, and the outside of the moving impeller is provided with a wind cover connected to the end cover.
[0026] The impeller is pressed onto the rotor assembly, and the shroud is pressed onto the upper end of the end cover, forming part of the fan's air duct. Cold air enters through the air inlet of the shroud, and hot air is discharged through the air outlet of the end cover.
[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A novel motor end bell structure for a dry and wet vacuum cleaner, characterized by: Including end cover (3), the end cover (3) is provided with cooling fan blade (1) and rotor assembly (2) in turn one end, the cooling fan blade (1) and rotor assembly (2) outside is provided with wind collecting hood (4), the wind collecting hood (4) is connected with the end cover (3).
2. The novel dry and wet dust cleaner motor end cover structure according to claim 1, characterized in that: The cooling fan blade (1) is press-fitted on the rotor assembly (2) and assembled with the end cover (3).
3. The novel dry and wet dust cleaner motor end cover structure according to claim 1, characterized in that: The wind collecting hood (4) comprises a convex portion (41) and a partition plate (42) arranged on the inner wall thereof.
4. The novel dry and wet dust cleaner motor end cover structure according to claim 3, characterized in that: The wind collecting hood (4) is assembled with the end cover (3) through the convex portion (41).
5. The novel dry and wet dust cleaner motor end cover structure according to claim 3, characterized in that: The wind collecting hood (4) forms cold and hot chambers through the partition plates (42) arranged on both sides.
6. The novel dry and wet dust cleaner motor end cover structure according to claim 1, characterized in that: The end cover (3) is provided with a flow channel structure and further provided with a guide vane.
7. The novel dry and wet dust cleaner motor end cover structure according to claim 1, characterized in that: The rotor assembly (2) is provided with a movable impeller (6) at one end, and the movable impeller (6) is provided with a fan cover (5) connected with the end cover (3) outside.
8. The novel dry and wet dust cleaner motor end cover structure according to claim 7, characterized in that: The movable impeller (6) is press-fitted on the rotor assembly (2), and the fan cover (5) is press-fitted on the upper end of the end cover (3) to form a fan air duct.
Citation Information
Cited By
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