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

Motor speed regulating voltage Vsp cut-off circuit of air conditioning system of brushless motor

A technology of voltage cut off and air conditioning system, applied in the direction of single motor speed/torque control, machine/engine, emergency protection circuit device, etc. It can avoid problems such as unsatisfactory use of the device, so as to avoid motor damage, improve operation safety and reliability, and solve the effect of simple control circuit.

Active Publication Date: 2013-07-10
CHINA YANGZI GRP CHUZHOU YANGZI AIR CONDITIONERCO
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The heating capacity of fixed-speed air conditioners and the noise of AC motors have been bothering technicians in the industry, making the use of fixed-speed air conditioners unsatisfactory
There is no cut-off circuit for indoor and outdoor motors, which is easy to cause damage to the motor when the power is cut off

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
  • Motor speed regulating voltage Vsp cut-off circuit of air conditioning system of brushless motor
  • Motor speed regulating voltage Vsp cut-off circuit of air conditioning system of brushless motor
  • Motor speed regulating voltage Vsp cut-off circuit of air conditioning system of brushless motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] see Image 6 and Figure 7 , the motor speed regulation voltage Vsp cut-off circuit of the brushless motor air-conditioning system, including the indoor motor speed regulation voltage cut-off circuit and the outdoor motor speed regulation voltage cut-off circuit; the indoor motor speed regulation voltage cut-off circuit includes the first voltage dividing and shaping circuit, the first DC voltage detection circuit and Vsp1 voltage cut-off circuit; the first voltage divider shaping circuit is composed of resistor R21, resistor R22 and capacitor EC8; the first DC voltage detection circuit includes voltage regulator tube Z3, resistor R23 and transistor Q2; Vsp1 voltage cut-off circuit includes Resistors R24-R26, switch transistor Q3, wherein the switch transistor Q3 is used as the executive element of the Vsp1 voltage cut-off circuit; the resistor R26 is connected to the indoor DC fan motor speed control circuit of the brushless motor air-conditioning system;

[0023] The...

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 a motor speed regulating voltage Vsp cut-off circuit of an air conditioning system of a brushless motor. The cut-off circuit comprises an indoor motor speed regulating voltage cut-off circuit and an outdoor motor speed regulating voltage cut-off circuit, wherein the indoor motor speed regulating voltage cut-off circuit comprises a first partial voltage shaping circuit, a first direct-current voltage detection circuit and a Vsp1 voltage cut-off circuit; and the outdoor motor speed regulating voltage cut-off circuit comprises a second partial voltage shaping circuit, a second direct-current voltage detection circuit and a Vsp2 voltage cut-off circuit. The cut-off circuit disclosed by the invention has the advantages that indoor and outdoor fan motors are prevented from being damaged when power failure occurs, the operational safety and reliability of the motor is improved, and the like.

Description

technical field [0001] The invention relates to a motor speed regulation voltage Vsp cut-off circuit of a brushless motor air-conditioning system. Background technique [0002] The heating capacity of fixed-speed air conditioners and the noise of AC motors have been bothering technicians in the industry, making the use of fixed-speed air conditioners unsatisfactory. In the existing fixed-speed air conditioners, most of the indoor and outdoor fan motors use AC induction motors, and most of the outdoor motors are controlled by one gear of speed. When the power grid voltage is high, the noise of the outdoor motor is too large; when the power grid voltage is low, the speed of the outdoor motor is too low and the heat dissipation effect is poor. Although a small number of high-efficiency fixed-speed air conditioner fans use DC brushless motors, only outdoor fan motors use DC brushless motors, and their control is extremely simple, only providing a fixed driving voltage for the D...

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): H02H7/08H02P6/08F24F11/00F04D27/00
Inventor 方立勇张婷
Owner CHINA YANGZI GRP CHUZHOU YANGZI AIR CONDITIONERCO
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