Check patentability & draft patents in minutes with Patsnap Eureka AI!

Electronic phase shifter structure of single phase asynchronous motor

A single-phase asynchronous motor technology, which is applied to starters of single-phase induction motors, asynchronous induction motors, motor generators/starters, etc., can solve problems such as poor starting performance and low starting torque of single-phase asynchronous motors, To achieve the effect of improving the start-up performance

Inactive Publication Date: 2009-01-14
王玉成
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are three traditional operation modes: capacitor running motor, resistance starting asynchronous motor, and capacitor starting motor, but the phase shift of the phase splitting element is generally only 30°, which leads to low starting torque of the single-phase asynchronous motor, that is, its poor starting performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electronic phase shifter structure of single phase asynchronous motor
  • Electronic phase shifter structure of single phase asynchronous motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] As shown in Figure 1, it is the circuit schematic diagram of this embodiment. An electronic phase shifter structure for a single-phase asynchronous motor, comprising a main winding 1 and an auxiliary winding 2 connected in parallel with the main winding 1, and the main winding 1 is connected to a power supply. The present invention also includes a capacitor C1 and a bidirectional thyristor 3 connected in series for providing a phase-shifted power supply for the secondary winding 2. connected in series. The gate G of the bidirectional thyristor 3 is connected to a trigger circuit, wherein the trigger circuit is composed of a resistor R, a capacitor C2 and a trigger diode 4 . Wherein the capacitor C1 and the bidirectional thyristor 3 connected in series are connected in series with the auxiliary winding 2, and they are triggered by the trigger circuit at 120° to the bidirectional thyristor 3. In addition, the electrical angles of the primary winding 1 and the secondary ...

Embodiment 2

[0023] The difference between this embodiment and Embodiment 1 is that in this embodiment, the present invention also includes a delay circuit, which is connected to the gate G of the triac 3, as shown in Fig. 2, the delay circuit The time circuit is the normally open switch K of the time delay relay.

[0024] In this embodiment, when the one-way asynchronous motor is started, the normally open switch K of the delay relay is turned off, and the phase-shifting circuit works at this time, and the normally open switch K of the delay relay is turned on after a few seconds. At this time, the bidirectional thyristor 3 In the normally on state, the performance of the capacitor running motor can be achieved.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an electronic phase shifter structure of a monophase asynchronous motor comprising a main winding (1) connected with a power supply and a secondary winding (2) parallelly connected with the main winding (1), which is characterized in that a capacitance (C1) connected with a bidirectional thyristor (3) in series supplying power after phase shift to the secondary winding (2) is also included, the serially connected capacitance (C1) and the bidirectional thyristor (3) are also serially connected with the secondary winding (2), a gate electrode (G) of the bidirectional thyristor (3) is connected with a trigger circuit of the bidirectional thyristor (3). The unachieved function of the prior monophase motor is achieved by adopting the above circuit structure, the starting torque of the monophase asynchronous motor is increased and the startability is improved.

Description

technical field [0001] The invention relates to the field of single-phase asynchronous motors, in particular to an electronic phase shifter structure of a single-phase asynchronous motor. Background technique [0002] There are two sets of main winding and auxiliary winding on the stator of the single-phase asynchronous motor. The main winding is connected to the current to work, and the auxiliary winding is connected in series with different phase-splitting elements in parallel with the main winding according to the different operation modes, and it is energized to make it run. At present, there are three traditional operation modes: capacitor-run motor, resistance-start asynchronous motor, and capacitor-start motor. However, the phase shift of the phase-splitting element is generally only 30°, which leads to low starting torque of the single-phase asynchronous motor, that is, its poor starting performance. . Therefore, how to solve the above problems has become an urgent...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02K17/08H02P1/42
Inventor 王玉成
Owner 王玉成
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com