CN201292990Y

CN201292990Y - Blower fan for suction cleaner motor

Info

Publication number: CN201292990Y
Application number: CNU2008201992610U
Authority: CN
Inventors: 倪祖根
Original assignee: Kingclean Floorcare Co Ltd
Current assignee: Kingclean Electric Co Ltd
Priority date: 2008-11-17
Filing date: 2008-11-17
Publication date: 2009-08-19
Anticipated expiration: 2018-11-17

Abstract

The utility model discloses a motor blower of a dust collector, which comprises an impeller cover, a stator end cover and a movable impeller arranged between the impeller cover and the stator end cover. An air guiding ring enclosing the movable impeller is fixed on the end surface of one side of the stator end cover; and the circumference of the air guiding ring and the inner wall of the impeller cover are impacted. In the utility model, the circumference of the air guiding ring and the inner wall of the impeller cover are impacted to eliminate a clearance; compared with the prior condition that the clearance exists between a static impeller and the inner wall of the impeller cover, the utility model effectively prevents the occurrence of vortex, improves the vacuum degree and the air draft efficiency of the blower, ensures that circumfluence air does not exist in the blower and greatly reduces noise generated by the mutual hit of air.

Description

The motor of dust collector blower fan

Technical field

The utility model relates to a kind of motor of dust collector blower fan.

Background technique

Traditional motor of dust collector blower fan usually by impeller chimney, decide impeller, movable vane wheel and the stator end cap constitutes, impeller chimney is fixed on the motor housing, decide impeller and be fixed on stator terminal and cover, and movable vane is taken turns and is sandwiched in impeller chimney and decides between the impeller; Wind is come in from the intake grill of impeller chimney,, enters in the guide vane of deciding the impeller ear end face again from decide around the impeller and gap discharge between the impeller chimney inwall through movable vane wheel.

The shortcoming of this motor fan structure is that the impeller chimney and the gap of deciding between impeller are bigger, forms eddy current easily, reduces air velocity, makes blower fan degree of vacuum reduce, and air draught efficient reduces; More can further cause air circulation and mutual bump in the blower fan, produce bigger noise.

In addition, the stator terminal in this motor fan covers owing to lack the further structure of wind-guiding, makes the wind resistance that of blower fan inside increase, and turnover wind is not smooth; Especially the air that comes out from the guide vane of deciding the impeller ear end face can directly impinge upon stator terminal and covers, and loses a large amount of kinetic energy, reduces flow velocity, also can cause the reduction of blower fan degree of vacuum and air draught efficient.

Summary of the invention

The utility model purpose is: provide a kind of degree of vacuum height, the motor of dust collector blower fan that noise is little at the deficiencies in the prior art.

The technical solution of the utility model is: a kind of motor of dust collector blower fan comprises impeller chimney, stator end cap and the wheel of the movable vane between impeller chimney and stator end cap; Be fixed with on one side end face of described stator end cap around the air-ducting ring of movable vane wheel, the periphery of this air-ducting ring and the inwall of impeller chimney compress.

The further technological scheme of the utility model is: a kind of motor of dust collector blower fan comprises impeller chimney, stator end cap and the wheel of the movable vane between impeller chimney and stator end cap; Be fixed with on one side end face of described stator end cap around the air-ducting ring of movable vane wheel, the periphery of this air-ducting ring and the inwall of impeller chimney compress; And the wind guiding blade that has been periphery on the described air-ducting ring forms first air channel between adjacent two wind guiding blades; And form some wind-guiding convex tendons on the opposite side end face of described stator end cap, form second air channel between adjacent two wind-guiding convex tendons; Described first air channel and the corresponding one by one connection in second air channel.

The utility model further technological scheme is: a kind of motor of dust collector blower fan comprises impeller chimney, stator end cap and the wheel of the movable vane between impeller chimney and stator end cap; Be fixed with on one side end face of described stator end cap around the air-ducting ring of movable vane wheel, the periphery of this air-ducting ring and the inwall of impeller chimney compress.And the wind guiding blade that has been periphery on the described air-ducting ring forms first air channel between adjacent two wind guiding blades; And form some wind-guiding convex tendons on the opposite side end face of described stator end cap, form second air channel between adjacent two wind-guiding convex tendons; Described first air channel and the corresponding one by one connection in second air channel.Described wind guiding blade and the projection of wind-guiding convex tendon on the end face of stator end cap simultaneously is a section of spiral of Archimedes.The space in described first air channel increases from inside to outside gradually, and the space ecto-entad in described second air channel dwindles gradually.

And described stator end cap is made by BMC, and air-ducting ring is made by nylon.

And described stator end cap and air-ducting ring are the separated type element, specifically be that described stator terminal covers and is provided with some posts hole, and air-ducting ring are provided with some locating columns with post hole corresponding matching; Thereby locating column inserts in the corresponding post hole and makes air-ducting ring fix with the stator end cap, also makes things convenient for both to separate certainly.

This motor of dust collector blower fan described in the utility model adopts air-ducting ring to replace original impeller of deciding, and further covers in stator terminal and increased wind guiding structure; During its work, wind is come in from the intake grill of impeller chimney, and after discharging through the movable vane wheel, discharge from the stator terminal postoperculum at last in second air channel that covers by first air channel on the air-ducting ring and stator terminal successively.

The utility model advantage is:

1. in the utility model,, eliminated the gap, therefore compared the situation of originally deciding to exist between impeller and impeller chimney inwall the gap, effectively prevented the generation of eddy current, improved blower fan degree of vacuum and air draught efficient because the periphery of air-ducting ring and the inwall of impeller chimney compress; Having guaranteed does not simultaneously have return air in the blower fan, greatly reduce the noise that air clashes into generation mutually.

2. in the utility model, owing to cover second air channel that has increased as wind guiding structure in stator terminal, and make this second air channel corresponding one by one with first air channel on the air-ducting ring, reduced the turnover wind resistance, guaranteed that air passes in and out the unimpeded of wind in blower fan; Therefore make the high velocity air of discharging in the driven impeller can be little by little, slow down by first, second air channel successively equably, significantly reduced the loss of kinetic energy, thereby further improved blower fan degree of vacuum and air draught efficient.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the structural representation of a kind of specific embodiment of the utility model;

Fig. 2 is the independent perspective view of air-ducting ring among Fig. 1 embodiment;

Fig. 3 is another view of Fig. 2;

Fig. 4 is the independent perspective view of stator end cap among Fig. 1 embodiment;

Fig. 5 is another view of Fig. 4;

Fig. 6 is air-ducting ring and a stator end cap bonding state perspective view among Fig. 1 embodiment;

Fig. 7 is another view of Fig. 6.

Wherein: 1, impeller chimney; 2, movable vane wheel; 3, stator end cap; 31, wind-guiding convex tendon; 32, positioning hole; 33, post hole; 4, air-ducting ring; 41, wind guiding blade; 42, locating column; 5, first air channel; 6, second air channel; 7, motor; 8, shell; 9, motor output shaft.

Embodiment

Embodiment: in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 with Figure 7 shows that a kind of embodiment of this practical motor of dust collector blower fan, it comprises impeller chimney 1, movable vane wheel 2 and stator end cap 3; Described impeller chimney 1 and stator end cap 3 all are fixed on the shell 8 of motor 7, and movable vane wheel 2 is fixed on the motor output shaft 9, and are sandwiched between impeller chimney 1 and the stator end cap 3.

Stator end cap 3 is made by BMC, is fixed with on the one side end face around the air-ducting ring 4 of movable vane wheel 2, and the inwall of the periphery of this air-ducting ring 4 and impeller chimney 1 compresses.

Described air-ducting ring 4 is made by nylon, the wind guiding blade 41 that has been periphery on it, and these wind guiding blades 41 are projected as a section of spiral of Archimedes on the end face of stator end cap 3; And 41 of adjacent two wind guiding blades form first air channel 5, and the space in described first air channel 5 increases from inside to outside gradually.Form some wind-guiding convex tendons 31 on the opposite side end face of stator end cap 3, and these wind-guiding convex tendon 31 projections on the end face of stator end cap 3 also are one section of spiral of Archimedes; And 31 of adjacent two wind-guiding convex tendons form second air channel 6, and the space ecto-entad in described second air channel 6 dwindles gradually.And first air channel 5 and the corresponding one by one connection in second air channel 6.

Form some positioning holes 32 (in the present embodiment being 4) on the described stator end cap 3, and the shell 8 with motor 7 fixes by wear screw in positioning hole 32; This stator end cap 3 is provided with some posts hole 33 (in the present embodiment being 2) simultaneously, and air-ducting ring 4 is provided with some locating columns 42 with post hole 33 corresponding matching; Thereby locating column 42 inserts in the corresponding post hole 33 and makes air-ducting ring 4 fix with stator end cap 3, also makes things convenient for both to separate certainly.

The described this motor of dust collector blower fan of present embodiment adopts air-ducting ring 4 to replace original impeller of deciding, and has further increased wind guiding structure on stator end cap 3; During its work, wind is come in from the intake grill of impeller chimney 1, after discharging through movable vane wheel 2, by first air channel 5 on the air-ducting ring 4 and second air channel 6 on the stator end cap 3, discharges from stator end cap 3 rear portions at last successively.

Because the periphery of air-ducting ring 4 and the inwall of impeller chimney 1 compress, therefore compare the situation of originally deciding to exist between impeller and impeller chimney inwall the gap in the present embodiment, effectively prevented the generation of eddy current, improved blower fan degree of vacuum and air draught efficient; Having guaranteed does not simultaneously have return air in the blower fan, greatly reduce the noise that air clashes into generation mutually.

Secondly, in the present embodiment owing on stator end cap 3, increased second air channel 6 as wind guiding structure, and make this second air channel 6 corresponding one by one, reduced the turnover wind resistance, guaranteed that air passes in and out the unimpeded of wind in blower fan with first air channel 5 on the air-ducting ring 4; Therefore make the high velocity air of discharging in the driven impeller 2 can be little by little, slow down by first air channel 5 and second air channel 6 successively equably, significantly reduced the loss of kinetic energy, thereby further improved blower fan degree of vacuum and air draught efficient.

Claims

1. motor of dust collector blower fan, comprise impeller chimney (1), stator end cap (3) and be positioned at impeller chimney (1) and stator end cap (3) between movable vane wheel (2); It is characterized in that being fixed with around the air-ducting ring (4) of movable vane wheel (2) on the side end face of described stator end cap (3), the inwall of periphery of this air-ducting ring (4) and impeller chimney (1) compresses.

2. motor of dust collector blower fan according to claim 1 is characterized in that the wind guiding blade (41) that has been periphery on the described air-ducting ring (4), forms first air channel (5) between adjacent two wind guiding blades (41); And form some wind-guiding convex tendons (31) on the opposite side end face of described stator end cap (3), form second air channel (6) between adjacent two wind-guiding convex tendons (31); Described first air channel (5) and second air channel (6) corresponding one by one connection.

3. motor of dust collector blower fan according to claim 2 is characterized in that described wind guiding blade (41) and the projection of wind-guiding convex tendon (31) on the end face of stator end cap (3) are a section of spiral of Archimedes.

4. motor of dust collector blower fan according to claim 2 is characterized in that the space in described first air channel (5) increases from inside to outside gradually; And the space ecto-entad in described second air channel (6) dwindles gradually.

5. motor of dust collector blower fan according to claim 1 and 2 it is characterized in that described stator end cap (3) made by BMC, and air-ducting ring (4) is made by nylon.

6. motor of dust collector blower fan according to claim 1 and 2 is characterized in that described stator end cap (3) and air-ducting ring (4) are the separated type element.

7. motor of dust collector blower fan according to claim 6 it is characterized in that described stator end cap (3) is provided with some posts hole (33), and air-ducting ring (4) is provided with some locating columns (42) with post hole (33) corresponding matching; Locating column (42) insert corresponding post hole (33) thus in make air-ducting ring (4) fix with stator end cap (3).