Air conditioner outdoor machine chassis electric heating control method and device and air conditioner

A technology for an air conditioner external unit and a control method, applied in the field of air conditioners, can solve the problems of inability to accurately control electric heating power, large temperature differences, etc., and achieve the effect of ensuring the cooling effect and reducing energy consumption.

Inactive Publication Date: 2019-08-23
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large temperature difference in each position of the outdoor unit, it is impossible to accurately control the electric heating power

Method used

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  • Air conditioner outdoor machine chassis electric heating control method and device and air conditioner
  • Air conditioner outdoor machine chassis electric heating control method and device and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Use the outer coil temperature sensor installed at the bottom of the condenser to detect the temperature at the bottom of the condenser, and use the range finder installed above the chassis to detect the distance between the range finder detection port and the chassis of the external machine, and compare it with the initial distance, The icing thickness ΔL is detected, and the electric heating power is controlled by combining the detected icing thickness ΔL and the temperature Tdp at the bottom of the condenser.

[0066] figure 2 It is a flow chart of a control method for electric heating of the chassis of an air conditioner external unit according to a specific embodiment of the present invention. Such as figure 2 As shown, after the air conditioner heating is turned on, use the outer coil temperature sensor installed at the bottom of the condenser to detect and record the temperature Tdp at the bottom of the condenser, and use the distance sensor installed directly...

Embodiment 2

[0088] Use the distance sensor installed directly above the chassis to obtain the distance between the detection port of the rangefinder and the chassis of the external unit, and compare it with the initial distance to obtain the thickness of the ice, thereby controlling the electric heating power of the chassis of the air conditioner.

[0089] Specifically, after the air conditioner heating is turned on, the distance sensor installed directly above the chassis (the sensor needs to detect the lowest point of the chassis) is used to detect and record the distance between the detection port and the chassis when starting up, as the initial record value. In this embodiment, the control method for electric heating includes:

[0090] S201. Real-time detection of the distance between the port and the chassis; comparing the distance between the real-time detection port and the chassis with the initial recorded value, and the difference is ΔL, which is regarded as the thickness of the i...

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Abstract

The invention provides an air conditioner outdoor machine chassis electric heating control method. The method includes the steps that a current distance L between a detection end port of a distance measuring unit above an air conditioner outdoor machine chassis and the outdoor machine chassis is detected; the current distance L is compared with a preset distance L0, and a distance difference valuedelta L is acquired; and according to a comparison result of the distance difference value delta L and a distance threshold value, the electric heating power of the air conditioner outdoor machine chassis is controlled. By detecting an icing thickness, the electric heating power is controlled, the electric heating power can be accurately controlled according to different icing thicknesses, and meanwhile, the electric heating power is controlled in real time according to the actual icing condition, and the energy consumption of an air conditioner can be lowered.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, and in particular, relates to a method and device for controlling electric heating of the chassis of an external unit of an air conditioner, and an air conditioner. Background technique [0002] The electric heating control of the existing air-conditioning chassis mainly detects the outdoor ambient temperature through a temperature sensor, determines whether the humidity is lower than a certain threshold, and controls the power of the electric heater. Due to the large temperature difference at each position of the outdoor unit, it is impossible to accurately control the electric heating power. Contents of the invention [0003] The problem solved by the invention is to improve the control precision of the electric heating power of the chassis of the air conditioner external unit. In order to solve the above problems, the present invention provides a control method for electric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/64F24F11/70
CPCF24F11/42F24F11/64F24F11/70F24F2221/34
Inventor 印泽南孙方华扶胜根
Owner NINGBO AUX ELECTRIC
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