CN2894049Y

CN2894049Y - Double-cooling fan motor

Info

Publication number: CN2894049Y
Application number: CN 200620050819
Authority: CN
Inventors: 王卫平; 吴湖南
Original assignee: JIANGXI SPECIAL MOTOR CO Ltd
Current assignee: JIANGXI SPECIAL MOTOR CO Ltd
Priority date: 2006-04-26
Filing date: 2006-04-26
Publication date: 2007-04-25
Anticipated expiration: 2016-04-26

Abstract

The utility model discloses a dual cooling fan motor, which has the inside and outside electric fans arranged respectively on the front and the back of the iron core of the motor rotor, and the ventilation holes are arranged correspondingly on the circles of the front cover and the end cover of the electric motor. Thereby the inner wind path is added to the original outside path and the inside and the outside paths are intersected, which greatly improves the radiating effects, makes a breakthrough in the restriction of the motor cabinet and the surface area of radiating fin in the process of multiple-speed motor radiation, and increases the service life of the electric motor.

Description

The double-cooling fan motor

Technical field: the utility model relates to a kind of motor, particularly a kind of double-cooling fan motor.

Background technology: the air-cooled structure that existing motor is common, generally be that work by fan blade in external fan and the rotor produces two relatively independent wind paths motor is cooled off, the work characteristics of this air cooling way is externally to dispel the heat by the support of motor and support surface radiating sheet, " bottleneck " of this heat exchange form is that support and its fin surface of motor is long-pending, hot-air and outer cold air can't obtain sufficient heat exchange in electronic, so seriously having retrained the motor heating load selects, the type selecting and the exploitation of motor have promptly been retrained, some multispeed electric machines particularly, as China Patent No. is that " the double-cooling fan three-phase alternating current adjustable frequency motor " of CN01211020.5 promptly is the improvement to existing motor air-cooled structure, it carries fan, auxiliary fan two electric fans are loaded on motor rotor shaft one end, at the fan guard internal fixation guide ring is arranged, the guide ring two sides have transition concave surface and centre bore, carry and fan a side that is positioned at guide ring, auxiliary fan is positioned at the opposite side of guide ring, this air cooling fan two fans are loaded on the end of axle, though increase motor cooling wind-force, but air cooling poor effect, and the structure relative complex, increased the manufacturing cost of motor greatly.

The utility model content: it is simple relatively that the purpose of this utility model just provides a kind of structure, and the motor manufacturing cost is low, and the air cooling effect is the double-cooling fan motor preferably.

The purpose of this utility model is achieved like this, comprise motor front end housing, rear end cap, motor stator core, rotor core, support, motor reel is equipped with rotor core on the motor reel, external fan is loaded on the motor reel of rear end cap outer side surface, on the motor reel between front end housing internal face and rotor core one end face, internal fan is housed, on front end housing, rear end cap, has ventilation hole.

Ventilation hole is located on the border of forward and backward end cap.

Ventilation hole on the front end housing is corresponding with the ventilation hole on the rear end cap.

On the border of forward and backward end cap, be that center line the right and left is arranged with 2-4 ventilation hole respectively with the axle by motor base one side.

Described forward and backward end cap is by on the motor base border on one side, with the axle be center line the right and left respectively symmetry respectively be provided with 1 ventilation hole.

The utility model adopts said structure to eliminate surface area " bottleneck " problem that former motor particularly is subject to motor bed-plate and fin in the air-cooled process of multiple-speed motor, it has increased interior wind path on original wind path basis, before promptly passing through, rear end cap, rotor, internal fan, wind path circulates in one of the composition such as support, because preceding, be respectively equipped with ventilation hole on the border by motor base one side on the rear end cap, and it is preceding, ventilation hole on the rear end cap is corresponding, in making, smooth and easy the passing through of wind energy that external fan produces, and in making, the outer circulation wind path intersects, form cold and hot exchange, improve the radiating effect of motor so greatly, prolonged the useful life of motor.

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Description of drawings:

Fig. 1: be the utility model structural representation.

Fig. 2: be the forward and backward end cap schematic diagram of the utility model.

Fig. 3: for Fig. 2 along P to the vent locations schematic diagram.

Among Fig. 1,2,3: 1. front end housing, 2. rear end cap, 3. external fan, 4. stator core, 5. rotor core, 6. support, 7. internal fan, 8. motor reel, 9. ventilation hole, 10. external fan cover.

Embodiment:

As Fig. 1, the double-cooling fan of the utility model shown in 2 motor, rotor core 5 is housed on the motor reel 8, at the two ends of rotor core 5 internal fan 7 and external fan 3 are housed respectively, external fan 3 is positioned on the motor reel 8 of madial wall of the outside of rear end cap 2 and external fan cover 10, internal fan 7 then is located on the motor reel 8 between iron core of rotor of motor 5 front ends and front end housing 1 inwall, preceding, rear end cap 1, respectively have 2 ventilation holes 9 respectively by on the border of motor base one side on 2, two ventilation holes 9 be with motor reel 8 be center line respectively symmetry respectively establish 1 ventilation hole 9, and, ventilation hole 9 on the front end housing 1 is corresponding with the ventilation hole 9 on the rear end cap 2, so just formed interior circulation wind path, the wind-force that to be the wind-force that produces of external fan 3 produce with internal fan 7 through rotor core 5 by the ventilation hole on the rear end cap 29 again together passes the ventilation hole 9 on the front end housing 1, the hot-air that motor is produced is delivered to the external world, outer wind path promptly is that external fan 3 rotates the wind-force of generation through support 6 and stator core 4, pass to the external world with interior wind path is crossing to front end housing 1, the heat that motor work produces can cool off fast again again.

Claims

1, a kind of double-cooling fan motor, comprise motor front end housing (1), rear end cap (2), stator core (4), rotor core (5), support (6), motor reel (8), rotor core (5) is housed on the motor reel (8), external fan (3) is loaded on the motor reel (8) of rear end cap (2) outer side surface, it is characterized in that: be positioned on the motor reel (8) between front end housing (1) internal face and rotor core (5) one end faces internal fan (7) is housed, on front end housing (1), rear end cap (2), have ventilation hole (9).

2, according to the described double-cooling fan motor of claim 1, it is characterized in that: ventilation hole (9) is located on the border of forward and backward end cap (1,2).

3, according to claim 1 or 2 described double-cooling fan motor, it is characterized in that: the ventilation hole (9) on the front end housing (1) is corresponding with the ventilation hole (9) on the rear end cap (2).

4, according to the described double-cooling fan motor of claim 2, it is characterized in that: on the border of forward and backward end cap (1,2), be that center line the right and left is arranged with 2-4 ventilation hole (9) respectively with axle (8) by motor base one side.

5, according to the described double-cooling fan motor of claim 4, it is characterized in that: described forward and backward end cap (1,2) is by on the motor base border on one side, with axle (8) be center line the right and left respectively symmetry respectively be provided with 1 ventilation hole (9).