CN207892888U - A kind of dust catcher noise reduction movable vane wheel and dust catcher - Google Patents

Abstract

The utility model discloses a noise-reducing moving impeller of a vacuum cleaner. Long blades and short blades are alternately arranged to change the structural form of the blades so as to meet users' requirements for low noise and improve user experience.

Description

Noise-reducing moving impeller of vacuum cleaner and vacuum cleaner

technical field

The utility model belongs to the structural design field of a moving impeller of a vacuum cleaner, in particular to a noise-reducing moving impeller of a vacuum cleaner and a vacuum cleaner.

Background technique

The vacuum cleaner is a cleaning appliance that uses a motor to drive the impeller to rotate at high speed, and generates air negative pressure in the sealed housing, thereby sucking dust into the dust cup. Vacuum cleaners can generally be divided into vertical, horizontal and portable according to their structural composition.

The vacuum cleaner motor is the core component of the vacuum cleaner. It is generally composed of two parts, the motor part and the fan part. The moving impeller of the vacuum cleaner fan is driven by the motor at high speed, and the air in the moving impeller is discharged from the fan at high speed, and at the same time, the air in the dust collection part is continuously circulated. Supplement the intake fan, so that it forms a higher pressure difference with the outside world, and the dust from the suction nozzle is sucked into the dust collection part with the air, and filtered by the filter, and the dust and dirt are collected in the dust cylinder. However, the operation of the motor will bring a certain amount of noise, and the size of the noise affects the user experience.

The moving impeller with traditional structure generally includes a bottom plate and blades located on the bottom plate. The blades are evenly distributed and have the same length, so the noise generated during rotation is relatively large, and the noise cannot be improved even after being installed in the complete machine. At present, the noise requirements of the motor are continuously improved by users, and the noise generated by the moving impeller in the traditional structure can no longer meet some users who have higher noise requirements.

Therefore, in view of the above problems, it is urgent to develop a new structure of the impeller to reduce the noise of the motor, meet the low noise requirements of users, and improve user experience.

Utility model content

In view of this, the utility model provides a noise-reducing moving impeller of a vacuum cleaner, so as to meet users' requirements for low noise and improve user experience.

According to the above purpose, the utility model proposes a noise-reducing moving impeller for a vacuum cleaner, the moving impeller includes a bottom plate and blades formed on the bottom plate, the blades include long blades and short blades, and the long blades and the The short blades are arranged at intervals.

Preferably, the blades include at least one group of long blades and at least one group of short blades, and each group of long blades and each group of short blades are evenly distributed on the bottom plate in an arc shape.

Preferably, the length of the short blade is 1/4-1/3 of the length of the long blade.

Preferably, a shaft hole is formed at the center of the bottom plate, the long blades extend from the shaft hole of the bottom plate to the outer peripheral edge of the bottom plate, the short blades are at least arranged near the outer peripheral edge of the bottom plate, and the long blades The included angle between one end of the blade and the tangent line of the outer peripheral edge of the bottom plate is a first included angle, the included angle between one end of the short blade and the tangent line of the outer peripheral edge of the bottom plate is a second included angle, and the first included angle and The second included angle is not equal.

The utility model also proposes a noise-reducing moving impeller for a vacuum cleaner, the moving impeller includes a bottom plate and blades formed on the bottom plate, a shaft hole is formed at the center of the bottom plate, the blades are evenly distributed, and the blades include Long blades and short blades, the long blades extend from the shaft hole of the bottom plate to the outer peripheral edge of the bottom plate, and the short blades are arranged near the outer peripheral edge of the bottom plate.

Preferably, the blades include at least one group of long blades and at least one group of short blades, and each group of long blades and each group of short blades are evenly distributed on the bottom plate in an arc shape.

Preferably, the short blades are disposed between two adjacent long blades, and the short blades are all disposed close to the preceding long blade or the rear long blade.

Preferably, the long blade is an arc-shaped structure, the long blade and the short blade are arranged at intervals, and the short blade is arranged close to the previous long blade.

Preferably, the long blades extend to the outer peripheral edge of the bottom plate and are flush with the outer peripheral edge of the bottom plate, and the ends of the short blades are a certain distance away from the outer peripheral edge of the bottom plate.

Preferably, the length of the short blade is 1/4-1/3 of the length of the long blade.

Preferably, the short blades are cut from any segment of the long blades.

Preferably, the included angle between the end of the long blade and the tangent to the outer peripheral edge of the bottom plate is a first included angle, the included angle between the end of the short blade and the tangent to the outer peripheral edge of the bottom plate is a second included angle, and the first included angle The angle is not equal to the second included angle.

Preferably, the blades are integrally formed on the bottom plate.

The utility model also discloses a vacuum cleaner, which comprises a moving impeller.

Compared with the prior art, the advantages of the noise-reducing moving impeller of the vacuum cleaner disclosed by the utility model are:

Changing the structural form of the blades by alternately setting long blades and short blades, and setting the angles between the long blades, short blades and the bottom plate at different angles, further reducing the noise of the vacuum cleaner motor during operation, so as to meet the low noise requirements of users , improve user experience.

In addition, by arranging the short blades close to the long blades on one side, and at the same time, the ends of the short blades are at a certain distance from the edge of the bottom plate, so that the edge air outlets of the blades present a tooth-shaped structure to reduce the eddy current and eddy current noise when the wind is discharged.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Figure 1 is a structural diagram of a traditional moving impeller.

Fig. 2 is a structural diagram of the moving impeller disclosed by the utility model.

Fig. 3 is a partial structure diagram at A in Fig. 2 .

Fig. 4 is a perspective view of a moving impeller.

The names of the corresponding parts represented by numbers or letters in the figure:

1. Bottom plate 2. Shaft hole 3. Long vane 4. Short vane

Detailed ways

The moving impeller of the traditional structure generally includes a bottom plate and blades located on the bottom plate. The blades are evenly distributed and have the same length, and the noise generated during rotation is relatively large. At present, the noise requirements of the motor are continuously improved by users. The moving impeller of the traditional structure The noise of the structure can no longer satisfy some users who have higher noise requirements.

Aiming at the deficiencies in the prior art, the utility model provides a noise-reducing moving impeller of a vacuum cleaner. The structural form of the blade is changed by adopting alternate arrangements of long blades and short blades, and at the same time, the first end of the long blade is tangent to the outer peripheral edge of the bottom plate. The included angle and the second included angle between one end of the short blade and the tangent line to the outer peripheral edge of the bottom plate are set at different angles to further reduce the noise when the motor of the vacuum cleaner is running, so as to meet the user's low noise requirement and improve user experience.

The technical solutions of the present utility model will be clearly and completely described through specific embodiments below. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 2 and Fig. 4. As shown in the figures, a noise-reducing moving impeller of a vacuum cleaner includes a base plate 1 and blades formed on the base plate 1. A shaft hole 2 is formed in the center of the base plate 1, and the blades are evenly distributed. The blades include long blades 3 and short blades 4. The long blades 3 extend from the shaft hole 2 of the base plate to the outer peripheral edge of the base plate 1. The short blades 4 are arranged near the outer peripheral edge of the base plate 1. The long blades and the short blades are connected to each other. No contact to meet the wind requirements. Among them, the height of the long blade is consistent with that of the short blade to avoid air leakage.

Wherein, the blades include at least one group of long blades 3 and at least one group of short blades 4 , each group of long blades and each group of short blades are evenly distributed on the bottom plate 1 in an arc shape. In this embodiment, a group of long blades and a group of short blades are preferably provided. The long blades 3 and the short blades 4 are both distributed on the bottom plate 1, and the number of the long blades and the short blades are equal, and the two are arranged alternately. In other embodiments, the long blades and short blades can be one or more groups, and the lengths of each group of long blades can be equal or unequal, and the lengths of each group of short blades can be equal or unequal. Improve the noise reduction effect of the motor.

The included angle between the end of the long blade 3 and the tangent line of the outer peripheral edge of the base plate 1 is the first included angle α, the included angle between the end of the short blade 4 and the tangent line of the outer peripheral edge of the base plate 1 is the second included angle β, and the first included angle α and the second included angle The angle β varies. If the first included angle is greater than the second included angle, α is 45°, and β is 30°, or the first included angle is smaller than the second included angle, α is 30°, and β is 45°. The specific angle size is not limited. In this embodiment, α is preferably 36°, and β is 50°, which reduces the noise by 1-2 decibels compared with the traditional structure of the moving impeller.

By setting the blades in the form of alternate lengths and different deflection angles, the movable impeller with this structure can significantly reduce the noise of the motor when blowing air, and the noise of the movable impeller with this structure is lower than that of conventional movable impellers with blades of equal length. Reduce 1-2 decibels, and the performance of the motor will not be affected, significantly improve the noise of the motor during operation, meet the high requirements of users, and improve user experience.

Further, the short blades 4 are disposed between two adjacent long blades 3 at the front and rear, and the short blades are all disposed close to the long blades at the front side or the rear side. By arranging the short blades to one side of the long blades, the air outlet space between the short blades and two adjacent long blades is not equal, which can further reduce the wind noise. In other embodiments, the short blades can also be arranged in the middle of two adjacent long blades, and the specific arrangement form depends on the needs, which is not limited here.

Further, the long blades 3 are arc-shaped, and at least one short blade 4 is arranged between two adjacent long blades 3. In this embodiment, one short blade 4 is preferably provided. The short blade 4 is close to the previous long blade 3 and far away from the rear. A set of 3 long blades. Wherein, the front and rear directions of the long blades may be determined according to clockwise or counterclockwise directions, and there is no specific limitation.

In addition, the long blades can also adopt a linear structure, and the short blades can be curved or linear.

Further, the long blades 3 extend to the outer peripheral edge of the bottom plate 1 and are flush with the outer peripheral edge of the bottom plate 1 , and the ends of the short blades 4 are a certain distance away from the outer peripheral edge of the bottom plate 1 . In this way, the connecting line between the long blade and the end of the short blade is a tooth-shaped structure, and the air outlet space of the tooth-shaped structure can reduce the vortex of the air outlet, reduce the noise of the eddy current, and further realize the purpose of noise reduction of the electric motor impeller. The distance between the ends of the short blades and the peripheral edge of the bottom plate can be adjusted as required.

Preferably, the length of the short blade 4 is 1/4-1/3 of the length of the long blade 3 . Preferably, the short blades are cut from any segment of the long blades. By arranging the short blades to be 1/4-1/3 of the length of the long blades 3, and arranging the short blades of this length at the peripheral edge of the bottom plate, the effect of noise reduction can be achieved.

Preferably, the blades are integrally formed on the bottom plate 1 , and in other embodiments, the blades can also be detachably arranged on the bottom plate, and the specific method is not limited.

To sum up, the utility model discloses a noise-reducing moving impeller of a vacuum cleaner. The structural form of the blades is changed by alternately arranging long blades and short blades, and at the same time, the included angles between the long blades, short blades and the bottom plate are set to different angles, further Reduce the noise when the vacuum cleaner motor is running to meet the user's low noise requirements and improve user experience.

In addition, by arranging the short blades close to the long blades on one side, and at the same time, the ends of the short blades are at a certain distance from the outer peripheral edge of the bottom plate, so that the edge air outlets of the blades present a tooth-shaped structure to reduce the eddy current and eddy current noise when the wind is out.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (13)

1. A noise-reducing moving impeller of a vacuum cleaner, the moving impeller includes a base plate and blades formed on the base plate, wherein the blades include long blades and short blades, and the long blades are connected to the short blades. Arranged at intervals, a shaft hole is formed at the center of the bottom plate, the long blades extend from the shaft hole of the bottom plate to the outer peripheral edge of the bottom plate, the short blades are at least arranged near the outer peripheral edge of the bottom plate, and the long blades The included angle between one end of the blade and the tangent line of the outer peripheral edge of the bottom plate is a first included angle, the included angle between one end of the short blade and the tangent line of the outer peripheral edge of the bottom plate is a second included angle, and the first included angle and The second included angle is not equal. 2. The noise-reducing moving impeller of a vacuum cleaner according to claim 1, wherein the blades include at least one set of long blades and at least one set of short blades, each set of long blades and each set of short blades are arc-shaped and uniform distributed on the floor. 3. The noise-reducing moving impeller of a vacuum cleaner according to claim 1, wherein the length of the short blade is 1/4-1/3 of the length of the long blade. 4. A noise-reducing moving impeller for a vacuum cleaner, the moving impeller includes a bottom plate and blades formed on the bottom plate, a shaft hole is formed at the center of the bottom plate, and the blades are evenly distributed, and it is characterized in that the blades include Long blades and short blades, the long blades extend from the shaft hole of the bottom plate to the outer peripheral edge of the bottom plate, and the short blades are arranged near the outer peripheral edge of the bottom plate. 5. The noise-reducing moving impeller of a vacuum cleaner according to claim 4, wherein the blades include at least one set of long blades and at least one set of short blades, each set of long blades and each set of short blades are arc-shaped and uniform distributed on the floor. 6 . The noise-reducing moving impeller of a vacuum cleaner according to claim 4 , wherein the short blades are disposed between two adjacent long blades, and the short blades are all disposed close to the preceding long blade or the rear long blade. 7 . 7. The noise-reducing moving impeller of a vacuum cleaner according to claim 4, wherein the long blade is an arc-shaped structure, the long blade and the short blade are spaced apart from each other, and the short blade is close to the previous long blade. Blades set. 8. The noise-reducing moving impeller of a vacuum cleaner according to claim 4, wherein the long blades extend to the outer peripheral edge of the bottom plate and are flush with the outer peripheral edge of the bottom plate, and the ends of the short blades are a section away from the outer peripheral edge of the bottom plate distance. 9. The noise-reducing moving impeller of a vacuum cleaner according to claim 4, wherein the length of the short blade is 1/4-1/3 of the length of the long blade. 10 . The noise-reducing moving impeller of a vacuum cleaner according to claim 9 , wherein the short blades are cut from any segment of the long blades. 11 . 11. The noise-reducing moving impeller of a vacuum cleaner according to claim 4, characterized in that, the angle between the end of the long blade and the tangent line of the outer peripheral edge of the bottom plate is the first angle, and the end of the short blade and the outer peripheral edge of the bottom plate The included angle of the tangent line is a second included angle, and the first included angle is not equal to the second included angle. 12 . The noise-reducing moving impeller of a vacuum cleaner according to claim 4 , wherein the blades are integrally formed on the bottom plate. 13 . 13. A vacuum cleaner, characterized in that it comprises the moving impeller according to any one of claims 5-12.