Servomotor for ETC and control system thereof

A servo motor and control system technology, applied in the direction of motor generator control, electronic commutation motor control, control system, etc., can solve the problems of low power density and power factor, large grid investment, and waste of electric energy, etc., to achieve power density High, high power factor, the effect of reducing the amount of copper used

CN106411091AInactive Publication Date: 2017-02-15苏州斯奥克微电机制造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-02-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a servomotor for ETC and a control system thereof. The servomotor include a motor main body, the motor main body includes a housing, a rotor and a stator are arranged in the housing, the rotor has a rotating shaft and a magnet fixed on the rotating shaft for driving, and the stator has a stator core arranged on the outer periphery of the magnet and a winding for generating a rotating magnetic field. The inner diameter of the stator is in the range of 65-69 millimeters, the stator is provided with 10-14 stator grooves, the stator is formed by the lamination of stator punching plates; the rotor is an eccentric magnetic steel rotor of a surface-mounting structure, the rotor is provided with 7-9 rotor grooves, and the rotor is formed by the lamination of rotor punching plates; the outer diameter of each stator punching plate is in the range of 122-128 millimeters; the winding is a fractional groove concentrated winding; the torque ripple of the motor is reduced by the magnetic steel eccentricity, the zero-load back EMF waveform is optimized, so that the motor can work continuously, efficiently and smoothly.
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Description

technical field

[0001] The invention relates to the field of electronic non-parking toll collection system, in particular to a servo motor used for ETC and its control system. Background technique

[0002] With the continuous improvement of people's living standards, the number of private cars has increased sharply, which has led to an increase in the load of the existing manual toll collection system for the management of expressways, roads, bridges, and parking lots, and has caused the loss of car time and fuel waste due to waiting for payment. The charging efficiency of the parking toll collection system is 5 to 10 times higher than that of the manual toll collection system. Therefore, the electronic non-stop toll collection system is widely used in highway toll collection, road and bridge toll collection, and parking lot management toll collection.

[0003] In the prior art, the motor used for ETC, that is, the electronic toll collection system is usually a traditional t...

Examples

Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figure 1 to Figure 6 As shown, the servo motor used for ETC includes a motor body, the motor body includes a housing 1, a rotor and a stator are arranged in the housing 1, the rotor has a rotating shaft and a magnet for driving fixed on the rotating shaft, and the stator has a The stator iron core on the outer periphery of the magnet and the windings used to generate the rotating magnetic field, the inner diameter of the stator is 65-69 millimeters, the stator is provided with stator slots 21, the number of stator slots 21 is 10 to 14, and the stator is punched by the stator The sheet 2 is laminated; the rotor is an eccentric magnetic steel rotor with a surface-mounted structure, that is, the magnet is an eccentric magnetic steel 32, and the rotor is provided with rotor slots 31, and the number of rotor slots 31 is 7 to 9. The rot...