CN216241473U

CN216241473U - Cooling fan for motor of dust collector

Info

Publication number: CN216241473U
Application number: CN202122601286.7U
Authority: CN
Inventors: 张桦
Original assignee: Suzhou Yongjie Motor Co ltd
Current assignee: Suzhou Yongjie Motor Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-04-08
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a cooling fan for a motor of a dust collector, which comprises a base plate, wherein a shaft sleeve and a plurality of blades are arranged at the center of the base plate, the blades are distributed in an annular array by taking the shaft sleeve as the center, the blades are arc-shaped, and an air channel which is gradually narrowed along the direction from the edge of the base plate to the shaft sleeve is formed between the adjacent blades. The utility model solves the technical problem of how to effectively reduce the wind loss and the operation noise, and has the advantages of high wind outlet efficiency, low operation noise, high heat dissipation and cooling efficiency, good effect and the like.

Description

Cooling fan for motor of dust collector

Technical Field

The utility model relates to the technical field of dust collector motor accessories, in particular to a cooling fan for a dust collector motor.

Background

The vacuum cleaner sucks and filters dust by using an air flow generated by high-speed operation of a motor. Because the motor can produce a large amount of heat in the high-speed operation process, in order to ensure the normal operation of the dust collector, a cooling fan is required to be arranged in the motor to dissipate heat and reduce temperature. Cooling fan among the prior art is by the chassis, set up the axle sleeve and a plurality of straight blade that use the axle sleeve to be radial setting on the chassis as the center and constitute at the chassis, and is obvious, and this structure not only leads to the running noise big, leads to the wind loss volume big moreover, and the heat dissipation cooling inefficiency and effect are poor.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is how to effectively reduce the wind loss and the operation noise.

In order to solve the technical problem, the utility model provides a cooling fan for a motor of a dust collector, which comprises a base plate, wherein a shaft sleeve and a plurality of blades are arranged at the center of the base plate, the blades are distributed in an annular array by taking the shaft sleeve as the center, the blades are arc-shaped, and an air channel which is gradually narrowed along the direction from the edge of the base plate to the shaft sleeve is formed between the adjacent blades.

In one embodiment of the utility model, one end of the vane is connected to the outer periphery of the shaft sleeve, and the other end is positioned at the edge of the chassis.

In one embodiment of the utility model, the top of the blade is chamfered at the connection with the bushing.

In one embodiment of the utility model, the angle of the chamfer is 120-150 °.

In one embodiment of the utility model, the number of vanes is a single number between 9-15.

In one embodiment of the utility model, the number of blades is 13.

In one embodiment of the utility model, the chassis, the shaft sleeve and the blade are coated with a wear-resistant lubricating layer.

In one embodiment of the utility model, the thickness of the wear resistant lubricating layer is 25um-75 um.

In one embodiment of the utility model, the base plate, the bushing and the blade are integrally formed.

In one embodiment of the utility model, the base plate, the shaft sleeve and the blade are all made of plastic material.

Compared with the prior art, the technical scheme of the utility model has the following advantages: through establishing the blade into arc column structure and using the bearing to be annular array distribution on the chassis as the center, form the setting that is the wind channel of constricting form gradually along the edge of chassis to the direction of axle sleeve between the adjacent blade, this just makes the windage little, and the intake increases, has reduced the air current sound to can pressurize through wind channel convection current, so this cooling fan can effectively reduce wind loss volume and running noise, improved air-out efficiency height and heat dissipation cooling effect greatly.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which

FIG. 1 is a schematic structural view of the present invention;

the specification reference numbers indicate: 1. the device comprises a base plate, 2, a shaft sleeve, 3, blades, 31, chamfers, 4 and an air channel.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

Referring to FIG. 1: the utility model provides a cooling fan for dust catcher motor, includes chassis 1, is equipped with the axle sleeve 2 that is located its center department and a plurality of blades 3 that use axle sleeve 2 to be the annular array and distribute as the center on chassis 1, and blades 3 are the arc form, and its one end is connected on the periphery of axle sleeve 2, the other end is located the edge of chassis 1, forms between the adjacent blade 3 and is the wind channel 4 that is the shape of narrowing gradually along the edge of chassis 1 to the direction of axle sleeve 2. Through setting up the blade 3 into the arc form and with the setting of annular array distribution for the windage is little, and the intake increases, and the air current sound is little, and the wind channel 4 that is the narrow form of gradual reducing that forms between the adjacent blade 3 moreover can pressurize messenger's wind current, and it is smooth and easy not only to have guaranteed the air-out, has improved air-out efficiency moreover, so this fan has realized effectively reducing the technological effect of wind loss volume and operational noise.

Furthermore, the top of the blade 3 is provided with a chamfer 31 at the joint with the shaft sleeve 2, and the angle of the chamfer 31 is 120-150 degrees, so that the chamfer plays a role in guiding cooling wind, and the cooling wind can be better blown to a rotating stator coil in the motor.

Further, the number of the blades 3 is a single number between 9 and 15, particularly 13, and the arrangement can better avoid turbulence, thereby reducing vibration and noise during operation.

Furthermore, the chassis 1, the shaft sleeve 2 and the blades 3 are all plated with wear-resistant lubricating layers, and the thickness of each wear-resistant lubricating layer is 25-75 um, so that the wind resistance is further reduced, and the service life of the cooling fan is prolonged.

Further, chassis 1, axle sleeve 2 and blade 3 integrated into one piece, and make by the plastics material, set up like this and make plasticity strong, compact structure and intensity high.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.

Claims

1. The utility model provides a cooling fan for dust catcher motor, its characterized in that, includes the chassis, be equipped with the axle sleeve that is located its center department on the chassis and a plurality of with the axle sleeve is the blade that annular array distributes as the center, the blade is the arc form, and is adjacent form between the blade and follow the edge of chassis extremely the direction of axle sleeve is the wind channel of constriction form gradually.

2. A cooling fan for a cleaner motor according to claim 1, wherein one end of the blade is attached to the outer periphery of the boss and the other end is located at the edge of the chassis.

3. The cooling fan for a cleaner motor as claimed in claim 2, wherein the top of the blade is chamfered at the junction with the boss.

4. A cooling fan for a motor of a cleaner as claimed in claim 3, wherein the angle of the chamfer is 120 ° to 150 °.

5. A cooling fan for a motor of a cleaner as claimed in claim 1, wherein the number of the blades is an odd number between 9 and 15.

6. The cooling fan for a motor of a cleaner as claimed in claim 5, wherein the number of the blades is 13.

7. The cooling fan for a motor of a vacuum cleaner as claimed in claim 1, wherein the base plate, the boss and the blade are coated with a wear-resistant lubricating layer.

8. The cooling fan for a motor of a vacuum cleaner as claimed in claim 7, wherein the wear-resistant lubricating layer has a thickness of 25um to 75 um.

9. The cooling fan for a motor of a cleaner as claimed in claim 1, wherein the base plate, the boss and the blade are integrally formed.

10. The cooling fan for a motor of a cleaner as claimed in claim 9, wherein the base plate, the boss and the blade are made of a plastic material.