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

Automobile air conditioner blower EFC device and system and air conditioner

A technology for automobile air conditioners and blowers, which is applied in mechanical equipment, vehicle parts, transportation and packaging, etc., can solve the problems of inefficient blower speed regulation, etc., and achieve the effect of preventing static current consumption.

Pending Publication Date: 2022-02-25
WUHAN AOZE ELECTRONICS
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, it is necessary to provide an EFC device, system and air conditioner for an automobile air-conditioning blower to overcome the problem that the speed regulation of the automobile air-conditioning blower is not efficient enough in the prior art

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
  • Automobile air conditioner blower EFC device and system and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0021] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In the description of the present invention, reference to "an embodiment" means tha...

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 an automobile air conditioner blower EFC device and system and an air conditioner. The automobile air conditioner blower EFC device comprises an EFC blower speed regulation module, an over-temperature protection module, a current-limiting protection module and an overvoltage protection module, wherein the EFC blower speed regulation module is built by adopting an operational amplifier, an MOSFET and discrete electronic components, the MOSFET is additionally provided with a heat conduction copper sheet to increase the corresponding heat conduction area, and the MOSFET is fully and flatly attached to the corresponding radiator and used for dissipating heat emitted by the MOSFET in the working process. The EFC module has the main functions of self-diagnosis of overvoltage, over-temperature, current limiting, locked-rotor and short-circuit protection besides stepless speed regulation of the air speed of the blower, and is stable, reliable, low in manufacturing and material cost and high in anti-electromagnetic interference capacity.

Description

technical field [0001] The invention relates to the technical field of control and speed regulation of an automobile air-conditioning blower, in particular to an EFC device, a system and an air conditioner for an automobile air-conditioning blower. Background technique [0002] The automotive air conditioning system is mainly used to cool, heat, ventilate and purify the air in the cab. At present, most low-end automotive air conditioning systems on the market still use blower speed regulating resistors, and more than half of them are connected in series. The speed is adjusted by the way of resistor division, and the resistance value in the blower circuit is used to adjust the voltage, so as to achieve the purpose of adjusting the speed of the blower. The resistance value of the low-grade bit string is large, the resistance value of the mid-range bit string is small, and the high-end bit string has no resistance value. Although this method has simple technology and structure...

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): F04D27/00B60H1/00
CPCF04D27/004B60H1/00821
Inventor 余浩琪熊硕付杰李鄂胜
Owner WUHAN AOZE ELECTRONICS
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