Method and device for detecting abnormality of fan of electromagnetic heating device and electromagnetic heating device
An electromagnetic heating device and anomaly detection technology, applied in the direction of electric heating fuel, induction heating, induction heating control, etc., can solve the problems of reduced reliability and fan failure, so as to improve service life, avoid reliability reduction, and ensure safety effect
Active Publication Date: 2018-02-23
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, due to power failure, drive circuit failure or abnormality of the fan itself, the fan cannot work normally, causing the whole machine and components to work in a relatively high temperature environment, reducing reliability
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0021] Fan abnormality can be mainly divided into the following several reasons:
[0022] 1. The logic error of the MCU main control chip or the abnormal output IO port; 2. The driving circuit is mainly driving the triode abnormality; 3. The current load of the power supply VDD is too heavy, resulting in a low working voltage. 4. The internal structure or internal circuit of the fan itself is abnormal. In view of the above reasons, the present invention collects the voltage at the connection point between the drive triode and the output terminal of the fan in the fan drive circuit, and judges whether it is in an abnormal state through program judgment.
[0023] Such as figure 1 As shown, the fan driving circuit is...
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
Login to View More Abstract
The invention relates to a method and device for detecting the abnormality of a fan of an electromagnetic heating device and the electromagnetic heating device. The method comprises the steps that theelectromagnetic heating device is initialized after being started, and a main program is started; a fan abnormality detection program is started at every preset time; the fan abnormality detection program includes the step of judging the operating state of the fan and the operating mode of the fan when the fan is running, the sampling voltage is compared with the matched preset abnormality judgment condition according to the judgment result, when no abnormality is found, a functional program of the electromagnetic heating device is executed, and when abnormality is detected, an abnormality processing program of the electromagnetic heating device is executed. By the adoption of the method for detecting the abnormality of the fan, the abnormality of the fan can be detected quickly, and correct processing is executed; and the problem of the reliability reduction, caused by the high temperature working environment, of components and the whole machine is avoided effectively.
Description
technical field [0001] The invention relates to the technical field of fan abnormality detection, in particular to a fan abnormality detection method and device of an electromagnetic heating device and an electromagnetic heating device. Background technique [0002] The components of the electromagnetic heating system and the whole machine work in a high-temperature environment, and a heat dissipation system composed of a fan and a heat sink is required to ensure that the whole machine works in a relatively stable environment. However, due to power failure, drive circuit failure or abnormality of the fan itself, the fan cannot work normally, causing the whole machine and components to work in a relatively high temperature environment, which reduces reliability. Therefore, there is an urgent need for a fan abnormality detection method to monitor the working status of the fan, quickly detect the abnormal state of the fan, and make correct handling. Contents of the invention ...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00F24C7/08H05B6/06
CPCF04D27/001F24C7/081H05B6/06
Inventor 宣龙健汪钊卢伟杰谭佳佳吴祥
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD