A stepper motor with easy drainage

Abstract

The invention belongs to the technical field of motors, and particularly discloses a stepping motor capable of discharging water easily. The stepping motor comprises a shell, a coil, a rotor, a mounting plate, a gear group, an output shaft, a spiral plate, a connection tube and a brushing module. One end of the shell is of a cambered face. The spiral plate is spiral, and one side of the spiral plate is attached to the cambered face. A rubber strip is arranged on one side, contacting with the cambered face, of the spiral plate. The center of the spiral plate is inserted into one end of the connection tube. The other end of the connection tube is connected to one end of the rotor, and is connected with the shell rotationally through a shaft sleeve. The other end of the output shaft is connected with the brushing module fittingly. Condensed water is scraped towards an outer ring of the shell through rotation of the spiral plate, and is prevented from entering the motor through the shaft sleeve to cause motor failure. The stepping motor has the advantages that the condensed water on the surface of the motor is discharged out timely, corrosion of the shell is avoided, the risk of waterpenetration of the motor due to poor sealing performance of the motor is also avoided, and the service life of the motor is prolonged.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to an easy-drain stepping motor. Background technique [0002] In the air-conditioning structure, the air-conditioning deflector is in the main area of ​​heat exchange, and often produces more condensed water. The stepper motors used for transmission are generally directly exposed and fixed on the components in the air conditioner. There is no waterproof device on the surface of the motor, and the output shaft of the motor is only sealed with grease, and the air conditioner often produces condensed water when it is working. The condensed water is easy to drip on the motor and cause damage to the motor, which can easily affect the normal operation of the stepper motor and even cause some safety hazards. [0003] Some existing technical solutions are to further improve the sealing of the stepping motor to realize the waterproofing of the stepping motor; it does not effectively dischar...

AI Technical Summary

Problems solved by technology

The stepper motors used for transmission are generally directly exposed and fixed on the components in the air conditioner. There is no waterproof device on the surface of the motor, and the output shaft of the motor is only sealed with grease, and the air conditioner often produces condensed water when it is working. The condensed water is easy to drip on the motor and cause damage to the motor, it is easy to affect the normal operation of the stepper motor, and even cause some safety hazards

[0003] Some existing technical solutions are to further improve the sealing of the stepping motor to realize the waterproofing of the stepping motor; it does not effectively discharge the condensed water, so that the sealing material is soaked in water for a long time, and the sealing performance will decrease over time. As the rate of failure gradually decreases, the incidence of failure also gradually increases; and the screws used to fix the motor are soaked in water for a long time, which is prone to rust, which makes the repair and maintenance of the air conditioner very unfavorable.

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