CN201750290U

CN201750290U - Novel cooling-mode DC dust collector motor

Info

Publication number: CN201750290U
Application number: CN2010205049473U
Authority: CN
Inventors: 倪祖根
Original assignee: Kingclean Electric Co Ltd
Current assignee: Kingclean Electric Co Ltd
Priority date: 2010-08-26
Filing date: 2010-08-26
Publication date: 2011-02-16
Anticipated expiration: 2020-08-26

Abstract

The utility model discloses a novel cooling-mode DC dust collector motor, which comprises a casing arranged at one end; a rotor contained in the casing and provided with a rotating shaft; a stator contained in the casing and arranged around the rotor; a wind cover arranged at the other end and provided with a wind inlet; a movable impeller contained in the wind cover; and a fixed impeller arranged under the movable impeller and provided with a plurality of wind channels, wherein, the casing is provided with an opening, the dimension of the opening is at least larger than that of the rotor. The utility model simplifies the assembling process, reduces the cost, ensures the unblocking of the wind channels, and reinforces the fan efficiency, based on the wind channels partly exposing outside.

Description

The direct current motor of dust collector of the novel type of cooling

Technical field

The utility model relates to a kind of direct current motor of dust collector of the novel type of cooling.

Background technology

The motor of conventional little direct-current high-efficiency dust catcher, as Fig. 1, air-flow is by the movable vane wheel and decide after impeller throws away, directly enter in the casing 1, by being positioned at the air inlet 2 on casing 1 end face, enter into the gap 5 between rotor 3 and the stator 4, be thrown to air outlet 7 by cooling fan 6 again.This structure needs the extra cooling fan that increases, and not only increases cost, and complex process, and cooling effect is poor, has increased the frictional dissipation of motor wind, influences fan efficiency.

Summary of the invention

The utility model purpose is: the direct current motor of dust collector that a kind of novel type of cooling is provided.

A technical scheme of the present utility model is: a kind of direct current motor of dust collector of the novel type of cooling, it comprises: be positioned at an end casing, be contained in casing and have a rotating shaft rotor, be contained in casing and surrounding rotor and the stator that is provided with, be positioned at the other end and have air inlet fan housing, be housed in the movable vane wheel of fan housing and be positioned at below the movable vane wheel and have the impeller of deciding in several air channels, wherein said casing has an opening, and this opening is at least greater than the diameter of rotor.

Casing described in the utility model comprises further and decides impeller against a flange that contacts and be positioned at the opening outer rim that this flange allows the part in air channel directly exposed outside at least.

Flange described in the utility model is a ring-type, and its diameter is less than the diameter of deciding impeller.

One end of rotating shaft described in the utility model is arranged with a lining, and this lining is step-like.

Step-like lining described in the utility model stretches into in the nut.

The spin locking direction of nut described in the utility model is opposite with the direction of rotation of movable vane wheel.

One end of casing described in the utility model is provided with the flange of a ring-type, and its diameter is less than the diameter of deciding impeller.

Flange described in the utility model by at least one screw with decide impeller and interfix.

The utility model advantage is: do not need the additional configuration cooling fan, simplify assembly technology, reduce cost and guarantee that wind path is smooth and easy, air quantity is big and wind speed is fast, good cooling results.

Description of drawings

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

Fig. 1 is the cutaway view of prior art shaft connected mode;

Fig. 2 is an exploded perspective view of the present utility model;

Fig. 3 is a cross-sectional schematic of the present utility model;

Wherein: 1,10, casing; 2, air inlet; 5,130, gap; 6, cooling fan; 12, flange; 20, fan housing; 22, nut; 2,30, movable vane wheel; 32, trim ring; 31,320, trim ring hole; 34, lining; 40, decide impeller; 42, air-out passage; 44, screw; 3,50, rotor; 4,60, stator; 100, rotating shaft; 7,102, air outlet; 120, opening.

Embodiment

Embodiment: shown in figure 2-3, the utility model provides a kind of specific embodiment of direct current motor of dust collector of the novel type of cooling, it comprises the casing 10 that is positioned at an end and has flange 12, be contained in casing 10 and have a rotating shaft 100 rotor 50, be contained in casing 10 and surrounding rotor 50 and the stator 60 that is provided with, be positioned at the other end and have air inlet (not label) fan housing 20, be housed in fan housing 20 movable vane wheel 30, be positioned at movable vane and take turns 30 belows and have deciding impeller 40 and being positioned at the upper and lower trim ring 32 that movable vane is taken turns 30 times sheets of several air channels 42.Its shaft 100 and movable vane wheel 30 fixes by a nut 22 and is connected, and nut 22 has T shape hole, and it is opposite that the spin locking direction of nut 22 and movable vane are taken turns 30 direction of rotation, and upper and lower trim ring 32 includes the trim ring hole 320 that is positioned at the center.

Casing 1 is the cylinder of inner hollow, adopts metal material to make.One end of casing 10 is the opening 120 greater than rotor 50 diameters, flange 12 is positioned at the outer rim of opening 120, its profile in the form of a ring, and diameter is less than the diameter of deciding impeller 40, and greater than the diameter of casing 10, the part that makes the air channel 42 of deciding impeller 40 be positioned at flange 12 outsides is exposed outside, guarantee to discharge by the exposed excessively air channel 42 of the movable vane wheel 30 part air communication of coming out, and the part air-flow enters into casing 10 because of the air channel that is positioned at flange 12 inside parts, flow through gap 130 between rotor 50 and the stator 60, the air outlet 102 from casing 10 flows out at last.This flange 12 with decide impeller 40 by plane contact, and by several screws 44 and decide impeller 40 and interfix.Realize good fixing thus, and be convenient to miniaturization, densification, low cost, and it is more smooth and easy to make that internal gas flow flows.

One end of rotating shaft 100 is arranged with the lining 34 that is step-like, and this lining 34 is at movable vane wheel 30 and decide between the impeller 40, through the hole of upper and lower trim ring hole 320 and movable vane wheel 30 and stretch in the T shape hole of nut 22 into, to strengthen fixing of rotating shaft 100 and movable vane wheel 30.

The utility model is by strengthening air inlet, and air passage portion is exposed does not need the additional configuration cooling fan outside, simplifies assembly technology, reduces cost and guarantees that wind path is smooth and easy, and air quantity is big and wind speed is fast, good cooling results.

Claims

1. the direct current motor of dust collector of a novel type of cooling, it comprises: the casing (10) that is positioned at an end, be contained in the casing (10) and have the rotor (50) of a rotating shaft (100), the stator (60) that is contained in the interior also surrounding rotor (50) of casing (10) and is provided with, be positioned at the other end and have the fan housing (20) of air inlet, be housed in the movable vane wheel (30) in the fan housing (20), and be positioned at movable vane wheel (30) below and have several air channels (42) decide impeller (40), it is characterized in that: described casing (10) has an opening (120), and this opening (120) is at least greater than the diameter of rotor (50).

2. direct current motor of dust collector according to claim 1, it is characterized in that: described casing (10) comprises further and decides impeller (40) against a flange (12) that contacts and be positioned at opening (120) outer rim that this flange (12) allows the part in air channel (42) directly exposed outside at least.

3. direct current motor of dust collector according to claim 2 is characterized in that: described flange (12) is a ring-type, and its diameter is less than the diameter of deciding impeller (40).

4. direct current motor of dust collector according to claim 3 is characterized in that: an end of described rotating shaft (100) is arranged with a lining (34), and this lining (34) is step-like.

5. direct current motor of dust collector according to claim 4 is characterized in that: described step-like lining (34) stretches into in the nut (22).

6. direct current motor of dust collector according to claim 5 is characterized in that: the spin locking direction of described nut (22) is opposite with the direction of rotation of movable vane wheel (30).

7. direct current motor of dust collector according to claim 6 is characterized in that: described flange (12) by at least one screw (44) with decide impeller (40) and interfix.