Impeller structure of dust collector

Abstract

An impeller structure of a dust collector comprises a wheel disc and blades, the wheel disc is of a conical structure with a small end and a large end, any cross sections perpendicular to a center shaft of the conical structure in the conical structure are different in area but consistent in appearance, and the cross sections are circular or regular polygonal in appearance. And the blades are distributed on the outer wall of the conical structure at equal intervals and are spirally arranged along the outer wall of the conical structure. The utility model has the advantages that the small-head end has large air inlet quantity and good air breaking effect, and the large-head end has higher air outlet speed; the conical structure is good in centering performance, the centrifugal effect of the impeller structure during rotation is reduced, the rotating speed is higher, and the service life of a driving shaft for driving the impeller structure to rotate can be prolonged; the arrangement mode of the blades enables the impeller structure to keep good centering performance, meanwhile, the blades are spirally arranged so that air can be better guided to spirally advance, the air outlet effect is further improved, and therefore the dust collection effect of the dust collector is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dustsucker dust absorption structure technical field especially points to a dustsucker impeller structure. BACKGROUND

[0002] The utility model discloses a new type dustsucker direct -current brushless motor's fixed blade wheel, including inner race, blade and lower cover, the tail end of blade with the outside of inner race is connected through welding, the blade with the inner race between 27.6923 degrees angle, the lower cover sets up in the bottom of inner race, the outer ring of lower cover is bonded connection with the inner race. The utility model discloses a blade with a certain prescribed angle of inner race, reduces the waste of airflow, improves the air guide efficiency, adopts the 13 blades of prescribed thickness, and the blade is distributed on the outside of inner race, so that the structure is more balanced, improves the efficiency of rotation, reduces friction, reduces the loss of airflow, improves the efficiency of motor. However, the air guide efficiency of the dustsucker impeller still has the room for improvement, so the impeller structure of the dustsucker still needs further improvement. SUMMARY

[0003] The utility model provides a dustsucker impeller structure that air suction volume is big, air outlet speed is fast, air guide efficiency is high for above -mentioned prior art status.

[0004] The utility model discloses a dustsucker impeller structure that air suction volume is big, air outlet speed is fast, air guide efficiency is high for above -mentioned prior art status.

[0005] As an improvement, the cross section of the outer shape of the cross section can be preferably one of a regular hexagon, a regular octagon, and a regular dodecagon. This reduces the difficulty of manufacturing while achieving an ideal air guide effect.

[0006] Further improvement, the outer wall of the conical structure can be preferably a smooth transition fillet. This reduces the friction between the outer wall of the conical structure and the air.

[0007] As an improvement, the cross section of the outer shape of the cross section can be preferably a regular hexagon, a regular octagon, and a regular dodecagon. This reduces the difficulty of manufacturing while achieving an ideal air guide effect.

[0008] Further improvement, the outer contour line of the conical structure can be preferably an inwardly curved arc. This reduces the friction between the outer wall of the conical structure and the air.

[0009] As an improvement, a connecting through hole can be preferably arranged in the middle of the conical structure and fixed with the driving shaft.

[0010] Further improvement, a connecting thread can be preferably arranged on the inner wall of the connecting through hole, or a key groove capable of inserting a positioning key can be preferably arranged on the inner wall of the connecting through hole.

[0011] As an improvement, a weight-reducing recess can be preferably arranged on the large-end face of the conical structure.

[0012] As an improvement, the blade end corresponding to the small head of the conical structure can be preferably an arc-shaped surface capable of reducing the cutting air resistance.

[0013] As an improvement, the conical structure can be preferably integrally made with the blade. Thus, the structure has better centricity.

[0014] Compared with the prior art, the advantages of the utility model lie in that the wheel disc adopts a conical structure with a small head and a large head, the small head has a small volume, which helps to reduce the friction between the corresponding position of the wheel disc and the air, thereby having a good breaking wind effect, and at the same time, due to the small volume, more air can be accommodated in cooperation with the blade, more air is stirred in unit time, thereby the air is stirred faster, the wind capacity of the large head is smaller than that of the small head, the air entering between the blades is pushed by the blades and is also pushed away from the impeller structure by the outer wall of the conical structure of the large head, and the air outlet speed is faster; the cross sections of the conical structure perpendicular to the central axis of the conical structure are different in area but consistent in shape, and the shape of the cross section is circular or regular polygon, the structure has good centricity, reduces the centrifugal effect of the impeller structure when rotating, the rotating speed is faster, and the service life of the driving shaft driving the rotation of the impeller structure is prolonged; the blades are equally spaced on the outer wall of the conical structure and are spirally arranged along the outer wall of the conical structure, which plays a role in maintaining good centricity, and the spiral arrangement of the blades can better guide the air to advance spirally, thereby further improving the air outlet effect and enhancing the dust collection effect of the dust collector. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the utility model embodiment;

[0016] Figure 2 It is Figure 1 a front projection view;

[0017] Figure 3 It is Figure 2 a top view;

[0018] Figure 4 It is Figure 3 a sectional view along line A-A in

[0019] Figure 5This is a perspective view of the second embodiment of the present utility model;

[0020] Figure 6 This is a perspective view of the third embodiment of the present utility model;

[0021] Figure 7 yes Figure 6 Top view;

[0022] Figure 8 yes Figure 7 Cross-sectional view along the BB line;

[0023] Figure 9 yes Figure 1 Enlarged view of section I. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figures 1 to 4 , Figure 9 As shown, the vacuum cleaner impeller structure of this embodiment includes a disc 1 and blades 2. The disc 1 is a conical structure with one end smaller than the other. In the conical structure, any cross-section perpendicular to the central axis of the conical structure has different areas but the same shape. The shape of the cross-section is a regular polygon. The blades 2 are evenly distributed on the outer wall of the conical structure and spirally arranged along the outer wall of the conical structure.

[0026] The cross-section is a regular hexagon. The outer corners of the conical structure are smoothly rounded (11). A connecting through-hole (13) for fixing to the drive shaft is provided in the middle of the conical structure. A connecting thread is provided on the inner wall of the connecting through-hole (13). A weight-reducing recess (14) is provided on the large end face of the conical structure. The blade tip corresponding to the small end of the conical structure is an arc-shaped surface (21) to reduce cutting air resistance. The conical structure and the blade (2) are integrally manufactured.

[0027] like Figure 5 As shown, the vacuum cleaner impeller structure of the second embodiment includes a disc 1 and blades 2. The disc 1 is a conical structure with one end smaller than the other. In the conical structure, any cross-section perpendicular to the central axis of the conical structure has different areas but the same shape. The shape of the cross-section is a regular polygon. The blades 2 are evenly distributed on the outer wall of the conical structure and are spirally arranged along the outer wall of the conical structure.

[0028] The cross-section is a regular dodecagon. A connecting through-hole 13, which can be fixed to the drive shaft, is provided in the middle of the conical structure. Keyways for inserting locating keys are spaced apart on the inner wall of the connecting through-hole. The blade tip corresponding to the small end of the conical structure is an arc-shaped surface 21 that reduces cutting air resistance. The conical structure and the blade 2 are integrally manufactured.

[0029] like Figures 6 to 8 As shown, the vacuum cleaner impeller structure of the third embodiment includes a disc 1 and blades 2. The disc 1 is a conical structure with one end smaller than the other. In the conical structure, any cross-section perpendicular to the central axis of the conical structure has different areas but the same shape. The shape of the cross-section is circular. The blades 2 are evenly distributed on the outer wall of the conical structure and spirally arranged along the outer wall of the conical structure.

[0030] The outer contour 12 of the conical structure is an inwardly curved arc. A connecting through-hole 13, which can be fixed to the drive shaft, is provided in the middle of the conical structure. Connecting threads are provided on the inner wall of the connecting through-hole 13, or keyways for inserting locating keys are spaced apart on the inner wall of the connecting through-hole. A weight-reducing recess 14 is provided on the large end face of the conical structure. The blade tip corresponding to the small end of the conical structure is an arc-shaped surface 21 that reduces cutting air resistance. The conical structure and the blade 2 are integrally manufactured.

Claims

1. A dust extractor impeller structure comprising a disc (1) and blades (2), characterized in that: The wheel disc (1) is a conical structure with one end small and the other end large, and any cross section perpendicular to the central axis of the conical structure has different areas but consistent shapes, the shape of the cross section is a circle or a regular polygon, the blades (2) are evenly distributed on the outer wall of the conical structure and are arranged in a spiral along the outer wall of the conical structure, and the end of the blade corresponding to the small end of the conical structure is an arc surface (21) capable of reducing the cutting air resistance.

2. The dust-cleaning impeller structure according to claim 1, characterized by: The shape of the cross section is one of a regular hexagon, a regular octagon and a regular dodecagon.

3. The dust-cleaning impeller structure according to claim 2, characterized by: The corners of the outer wall of the conical structure are smooth transition fillets (11).

4. The dust-cleaning impeller structure according to claim 1, characterized by: The shape of the cross section is a circle.

5. The dust-cleaning impeller structure according to claim 4, characterized by: The outer contour line (12) of the conical structure is an inwardly curved arc.

6. The dust-cleaning impeller structure according to any one of claims 1 to 5, characterized by: A connecting through hole (13) capable of being fixed with a driving shaft is arranged in the middle of the conical structure.

7. The dust-cleaning impeller structure according to claim 6, characterized by: A connecting thread is arranged on the inner wall of the connecting through hole (13), or key grooves capable of being inserted with positioning keys are arranged on the inner wall of the connecting through hole at intervals.

8. The dust-cleaning impeller structure according to any one of claims 1 to 5, characterized by: A weight-reducing recess (14) is arranged on the large end face of the conical structure.

9. The dust-cleaning impeller structure according to any one of claims 1 to 5, characterized by: The conical structure and the blades (2) are integrally manufactured.

Images