Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Voltage and speed regulating controller for single-phase asynchronous motor and air-conditioner using the same

A single-phase asynchronous motor, voltage regulation and speed regulation technology, applied in the direction of AC motor control, control system, electrical components, etc., can solve the problems of large noise, inconvenience, high cost, etc., and achieve reliability, noise reduction, and convenient operation Effect

Active Publication Date: 2007-02-28
GREE ELECTRIC APPLIANCES INC
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing single-phase asynchronous motors generally cannot be adjusted in speed, and it is not convenient to cooperate with the equipment reasonably.
For example, in the existing air conditioning system, the indoor fan can only operate at fixed high, medium and low wind speeds, and the range of speed variation is small. The heat transfer of the exchanger cannot be well matched, which affects the reliability and stability of the unit operation, so the indoor unit often makes a lot of noise when it is working
At present, most of the methods used in the market for speed regulation of single-phase fans are to set the target speed, and the MCU calculates the conduction angle of the silicon controlled rectifier. Stepless speed regulation, and the cost is relatively high, especially when the use environment is severely disturbed, the reliability of the MCU cannot be guaranteed 100%

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
  • Voltage and speed regulating controller for single-phase asynchronous motor and air-conditioner using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] In order to facilitate the introduction of the present invention, the applicant will explain the speed regulation principle of the single-phase asynchronous motor speed controller by introducing the application of the single-phase asynchronous motor voltage and speed controller in the air conditioning system.

[0016] An air conditioner includes an indoor unit and an outdoor unit, the indoor unit includes a fan, and the air conditioner also includes a controller for adjusting the pressure and speed of the fan. As shown in Figure 1, the fan voltage regulation and speed regulation controller is composed of the following parts: dial code setting part 1, voltage transformation and rectification circuit 2, power supply zero point detection circuit 3, thyristor conduction angle adjustment circuit 4 , SCR driving circuit 5 . The voltage and speed regulating controller adjusts the conduction angle of the thyristor by adjusting the trigger time of the 555 timer of the thyristor ...

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 relates to a voltage-adjustable speed-adjustable controller of single-phase asynchronous motor. Wherein, said controller is formed by dial code setter, voltage-variable rectifying circuit, power zero detecting circuit, controllable silicon connection angle adjustable circuit, and controllable silicon driving circuit; said controller can based on the need of device adjust the voltage of motor to adjust the rotation speed of fan. The invention adjusts the trigger time of 555 timers to adjust the connecting angle of controllable silicon, and uses theory of chopped wave circuit to adjust the driving voltage of fan, to adjust the wind speed, to realize stepless speed adjustment. The invention has the advantages that it can stepless adjust the speed of fan, to reduce the noise and cost of indoor machine of air conditioner.

Description

technical field [0001] The invention relates to the field of motor speed regulation control, in particular to a single-phase asynchronous motor voltage regulation and speed regulation controller. The invention also relates to an air conditioner using a single-phase asynchronous motor voltage and speed regulation controller. Background technique [0002] Single-phase asynchronous motors are widely used, and the one we are most familiar with is used in air conditioners. However, most of the existing single-phase asynchronous motors generally cannot be adjusted in speed, and it is not convenient to cooperate with the equipment reasonably. For example, in the existing air conditioning system, the indoor fan can only operate at fixed high, medium and low wind speeds, and the range of speed variation is small. The heat transfer capacity of the exchanger cannot be well matched, which affects the reliability and stability of the unit operation, so the indoor unit often makes a lot...

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
IPC IPC(8): H02P27/02
Inventor 谭建明谭泽汉谢涌泉
Owner GREE ELECTRIC APPLIANCES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com