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Air conditioner display panel identification circuit and method and air conditioner indoor unit

A technology for identifying circuits and display panels, applied in heating methods, mechanical equipment, space heating and ventilation, etc., can solve the problems of poor reliability, high cost and design complexity, and achieve high reliability and accuracy, cost and design Low complexity, cost-saving effect

Inactive Publication Date: 2021-09-03
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the present invention is that the existing way of judging the type of display panel has high cost and design complexity and poor reliability

Method used

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  • Air conditioner display panel identification circuit and method and air conditioner indoor unit
  • Air conditioner display panel identification circuit and method and air conditioner indoor unit
  • Air conditioner display panel identification circuit and method and air conditioner indoor unit

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Embodiment Construction

[0028] In order to make the above objects, features and advantages of the present invention more obvious and understandable, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] figure 1 It is a structural schematic diagram of the identification circuit of the display panel of the air conditioner of the present invention, showing the display panel 100 to be identified and the main control panel 200 of the indoor unit used for identification. The display board can be a display lamp board, panel, etc. of the indoor unit.

[0030] Wherein, the main control board 200 is connected to at least one signal line of the display panel 100, and each signal line is connected to an operating voltage or grounded.

[0031] Exemplarily, in figure 1 There are 4 signal lines connected to the output ports 1, 2, 3, and 5 of the middle display panel 100, the signal lines connected to the ports 1, 2, and 3 may be di...

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PUM

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Abstract

The invention provides an air conditioner display panel identification circuit and method and an air conditioner indoor unit. The circuit comprises a main control panel, the main control panel is connected with at least one signal line of a display panel, and each signal line is connected with working voltage or grounded; and the main control panel is used for detecting level signals of all the signal lines and identifying the type of the display panel according to the combination of the level signals. According to the embodiment of the circuit, display panel type identification can be realized without additional connecting lines and resource spending, the cost and the design complexity are relatively low, and compared with a resistance identification method adopting inaccurate analog signal detection, reliably determined digital signals are adopted for detection and identification, the reliability and the accuracy of type identification are higher.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner display board identification circuit, a method and an air conditioner indoor unit. Background technique [0002] Now there are more and more types of light boards / panels used to display the status of the air conditioner on the air conditioner, including light-emitting diodes (light-emitting diodes, LEDs), LED screens, various display truth tables, and different swing angles of the panels. , in order to be compatible with these various air conditioner display boards and panels, it is necessary for the main control board of the internal unit to identify and judge the type of the display board. [0003] At present, the commonly used identification and judgment method is to increase the input / output (Input / Output, I / O) for separate identification, and obtain different resistance values ​​for identification. This method needs to occupy one channel of analo...

Claims

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Application Information

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IPC IPC(8): F24F11/88F24F11/52F24F11/56
CPCF24F11/88F24F11/52F24F11/56
Inventor 扶胜根刘世勇翁耀衔李伟娜刘佳
Owner NINGBO AUX ELECTRIC
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