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Single-phase capacitor motor

A technology of electric motor and single-phase power supply, applied in asynchronous induction motors, electrical components, electromechanical devices, etc., can solve problems such as difficulty in further improving winding coefficient, failure to effectively eliminate harmonics, and difficulty in further improving starting performance, electromagnetic vibration and noise, etc.

Inactive Publication Date: 2006-04-05
JINLING ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the only three-phase winding with star or delta connection, the harmonics higher than the third cannot be effectively eliminated, and it is difficult to further improve the starting performance and reduce the electromagnetic vibration noise; and when the stator size is not small and more slots are required , the winding coefficient is difficult to further improve

Method used

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Embodiment Construction

[0014] The wiring of the single-phase capacitor motor in the embodiment of the present invention is as follows: figure 1 As shown, the winding distribution is as figure 2 shown. It is based on a 180W single-phase capacitor running motor for washing machines in the prior art that meets the requirements of the national industry standard JB / T3758, and is formed by re-embedding and wiring the stator winding.

[0015] Its structure that follows the prior art includes:

[0016] - 24-slot stator core;

[0017] ——The lead-out line A connected to the N pole of the neutral line of the single-phase power supply, the two lead-out lines B and C connected across the capacitor, and the b-pole of the phase line of the single-phase power supply is connected to the lead-out line B or C;

[0018] - squirrel cage rotors and other mechanical mechanisms.

[0019] Reinsert and wire the stator winding of the single-phase capacitor motor as follows:

[0020] Such as figure 1 As shown, the stato...

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Abstract

The invention relates to a single-phase capacity motor. Wherein, its stator has a three phase winding, two input terminals connected to the two electrodes of single-phase power source and the second input terminal via the capacitor connected to one electrode of said single-phase power source. And the invention is characterized in that: said three phase winding comprises a star winding with a star connection to said three input terminals and a triangle winding with a triangle connection to said three input terminals; the phase band of said star wind and the phase band of triangle winding are alternatively distributed in the stator groove while the electrical angle distance of central space between nearby phase band is ªð / 6; And the current time phase angle difference of said nearby phase bands has the same sign with the electrical angel distance of central space of phase band. Compared to the present technique, the invention can improve the coefficient of winding and weaken higher harmonic to improve the property, reduce the cost, improve the start property and reduce the electromagnetic vibration noise.

Description

technical field [0001] The invention relates to a single-phase capacitor motor, which belongs to HO2K3 / 28 in the international patent classification table. Background technique [0002] In order to overcome the disadvantages of the traditional two-phase winding single-phase capacitor motor, the prior art proposes a three-phase winding single-phase capacitor motor. The stator of such a single-phase capacitor motor has a three-phase winding connected in one of star or delta, and its two input terminals connected to the two poles of the single-phase power supply and the third terminal connected to one of the poles of the single-phase power supply via a capacitor The input terminal can be found in "Single-phase Asynchronous Motor and Its Application (Synthetic Current Analysis Method)" (Sun Yunpeng, Mechanical Industry Press, 1987 Beijing 1st edition). The phase band of the three-phase winding is usually π / 3, which is smaller than the phase band of the two-phase winding π / 2, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/28H02K17/08
Inventor 区长钊曾令远
Owner JINLING ELECTRICAL CO LTD
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