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Air conditioner, draught fan rotation speed detecting method and device thereof

An air-conditioning fan and rotational speed detection technology, applied to devices using electric/magnetic methods, by detecting the appearance of fluid at the leak point, using liquid/vacuum degree for liquid tightness measurement, etc., it can solve the problem that the signal cannot obtain the rotational speed of the fan and other problems to achieve the effect of accurately obtaining the fan speed

Inactive Publication Date: 2016-05-04
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide an air conditioner and its fan speed detection method and device, so as to solve the problem that the fan speed cannot be obtained when the signal of the air conditioner fan operation is too small

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  • Air conditioner, draught fan rotation speed detecting method and device thereof
  • Air conditioner, draught fan rotation speed detecting method and device thereof
  • Air conditioner, draught fan rotation speed detecting method and device thereof

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Embodiment Construction

[0029] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0031] It should be noted that the terms "first" and "second" in ...

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Abstract

The invention discloses an air conditioner, a draught fan rotation speed detecting method and device thereof. The draught fan rotation speed detecting method of the air conditioner includes the following steps that: current signals in an air conditioner draught fan power supply line are acquired, so that the sine waves of the current signals can be obtained; amplification processing is performed on the sine waves of the current signals, so that amplified sine waves can be obtained; and the amplified sine waves are transformed into square waves; and the rotation speed of an air conditioner draught fan can be calculated through the square waves. With the draught fan rotation speed detecting method and device of the invention adopted, the problem of incapability of obtaining the rotation speed of the draught fan when signals of the operating of the air conditioner draught fan are too weak can be solved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner and a method and device for detecting the speed of a fan thereof. Background technique [0002] The air conditioner fan is an important part of the air conditioner. For the air conditioner, it is often necessary to detect the speed of the air conditioner fan. For the fan used in the air conditioner, for example, the fan with adjustable speed and no feedback, the program cannot obtain the actual speed of the fan. The established program estimates the fan speed, so the actual speed of the air conditioner fan may be inconsistent with the fan speed estimated by the program, which will affect the overall performance of the air conditioner. [0003] When the air-conditioning fan is running at low speed, the signal of the air-conditioning fan is small. Because the signal of the fan is small, the existing detection method is difficult to sample, or the collected signal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/06
CPCG01P3/44
Inventor 马建峰喻春平张辉梁博叶务占王现林杨荣礼杨俭
Owner GREE ELECTRIC APPLIANCES INC
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