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Novel speed regulator for automotive air conditioner fan and working method thereof

A technology for speed regulation of automobile air conditioners and fans. It is applied in the direction of machine/engine, DC motor speed/torque control, and mechanical equipment. Detection and stabilization, strong versatility, and the effect of volume reduction

Active Publication Date: 2014-02-26
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of existing governors such as large volume, complex circuit structure, incapable of stepless speed regulation, poor versatility, and incomplete protection functions, and propose a novel automobile air-conditioning fan governor and its working method

Method used

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  • Novel speed regulator for automotive air conditioner fan and working method thereof
  • Novel speed regulator for automotive air conditioner fan and working method thereof
  • Novel speed regulator for automotive air conditioner fan and working method thereof

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Embodiment Construction

[0035] The invention will be described in more detail below in conjunction with the accompanying drawings.

[0036] see image 3, The automobile air conditioner fan governor of the present invention is mainly composed of a power supply circuit, a power supply protection circuit, a control circuit, a signal input module, a power circuit, a feedback loop, and an interface circuit. The above power supply circuit provides a stable DC voltage for the control circuit and power circuit. The power supply protection circuit is mainly designed to prevent the control circuit from being burned when the power supply voltage is reversed. It can play a very good protective role. The power circuit provides enough power for the motor. Power, so that the motor can drive the load to work normally. The feedback loop is to feed back the relevant output signal to the control circuit, so that the whole system can work efficiently and stably, and the anti-interference ability is greatly improved. The...

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Abstract

The invention belongs to the field of motor speed regulation, and particularly relates to a speed regulation device for an automotive air conditioner fan. With the aim of overcoming the defects of the existing speed regulator such as large volume, complex circuit structure, being incapable of carrying out steepless speed regulation, poor commonality and incomplete protection functions, the invention discloses a novel speed regulator for an automotive air conditioner fan and a working method thereof. The invention adopts advanced ASIC (application specific integrated circuit) technology, integrates all the functions onto a silicon slice to be packaged into a chip, and then designs the novel speed regulator for the automotive air conditioner fan by adopting the chip.

Description

technical field [0001] The invention belongs to the field of motor speed regulation, in particular to a speed regulation device used for an automobile air-conditioning fan. Background technique [0002] At present, most domestic automotive air-conditioning fans use brushed DC motor series resistors for speed regulation, brushless DC motor speed regulation, and pole-changing speed regulation. [0003] The document "AC Speed ​​Control System (First Edition) (Liu Jingcheng. Shanghai: Shanghai Jiaotong University Press, 1984.)" pointed out that the series resistor speed control method is to connect multiple additional resistors in series in the electric drive circuit of the DC single-phase motor , through the shift switch to change the number of resistors connected in series, thereby changing the resistor R connected in series in the electric drive circuit of the motor, so that the electric drive current is changed to achieve motor speed regulation. This method of speed regulati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P7/00H02P7/29H02H7/08F04D27/00
Inventor 孔令成徐达张志华赵贤相骆长俊
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI