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Drive motor of centrifugal fan

A technology for driving motors and centrifugal fans, applied in the field of motors, can solve the problems of inability to meet high speed, large fan friction loss, vibration, large volume, etc., and achieves the effect of compact structure, increased fan speed, and reduced fan volume.

Inactive Publication Date: 2010-09-15
CHONGQING DEMA FREQUENCY CONVERSION MOTOR R & D
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are low speed, low wind pressure, small air volume, and large volume, which cannot meet the needs of high speed and high wind pressure.
[0003] If you want to change the electromagnetic design on the basis of the existing centrifugal fan drive motor to increase the motor speed, not only the wind friction loss of the fan will be too large, but also the damage to the fan due to the high speed of the fan cannot be tolerated; if the frequency conversion is used The special axial flow fan independently dissipates heat from the motor, although the motor speed can be increased, but the vibration and volume are larger than the existing drive motor

Method used

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  • Drive motor of centrifugal fan
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Embodiment Construction

[0013] Such as figure 1 , figure 2 As shown, the stator 6 with windings is pressed into the machine base 7 with interference, the rotor 5 with bearings 4 respectively installed on the shafts 1 on both sides is placed in the center of the iron core of the stator 6 with windings, and the two ends of the machine base 7 are respectively installed with spigots. The front end cover 2 and the rear end cover 8, the bolt A3 passes through the mounting hole of the front end cover 2 and engages with the internal thread at one end of the machine base 7, and the bolt B9 passes through the mounting hole of the rear end cover 8 and engages with the internal thread of the other end hole of the machine base 7. The end surface 10 of one end of the double-layer machine base 7 has a heat dissipation air duct hole 13, and the heat dissipation air duct 14 is formed between the outer cylinder 12 of the machine base and the inner cylinder 11 of the machine base, and the heat dissipation air duct 14 ...

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Abstract

The invention discloses a drive motor of a centrifugal fan and a motor, wherein, an end face (10) at one end of a double-layer base (7) is provided with a heat dissipation air duct hole (13); a heat dissipation air duct (14) is arranged between a base external cylinder (12) and a base internal cylinder (11); the heat dissipation air duct (14) is communicated with the heat dissipation air duct hole (13); and a shaft (1) penetrates the centre hole of the end face (10) of the base (7). The drive motor of the invention has simple and compact structure, easy manufacturing, energy conservation, improved rotating speed of the fan, increased wind pressure of the fan, improved flow rate of the fan, reduced volume of the fan, lowered manufacturing cost, increased efficiency, adaptability to the demand of technique development and the like, wherein, the rotating speed is improved from 3000r / min to 30000r / min.

Description

technical field [0001] The invention relates to the field of electric motors, in particular to a driving motor for a centrifugal fan. Background technique [0002] The driving motor of the existing centrifugal fan is equipped with an ordinary asynchronous motor. The cooling method of the driving motor is self-radiation of the coaxial fan, and the maximum speed can only be within 3000r / min. Its structure is to press the winding stator core into the interference fit position of the machine base, and lead the lead wire out of the machine base; place the rotor (with assembled bearing) in the center of the winding stator core; respectively install the front end with the spigot The cover (with flange seam) and the rear end cover are respectively fastened to the machine base with bolts; then install the fan on the matching position of the rear end fan and connect it with the fan's own key; then install the fan cover on the rear end cover The upper part is fastened with bolts; the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/04H02K5/20H02K9/06
Inventor 熊德明王平
Owner CHONGQING DEMA FREQUENCY CONVERSION MOTOR R & D
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