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A method for controlling electric heating of an inverter air conditioner

A frequency conversion air conditioner and control method technology, applied in the field of air conditioning, can solve the problems of increased system cost and control complexity of the air conditioner, and achieve the effects of improving the heating experience, improving the energy efficiency ratio, and speeding up the defrosting process

Inactive Publication Date: 2016-04-20
GUANGDONG KELON AIR CONDITIONER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution uses a bypass valve in the outdoor unit for the defrosting process, and the electric heating is turned on in the room during the defrosting process, which significantly increases the cost and control complexity of the entire air conditioner system

Method used

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  • A method for controlling electric heating of an inverter air conditioner
  • A method for controlling electric heating of an inverter air conditioner
  • A method for controlling electric heating of an inverter air conditioner

Examples

Experimental program
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Effect test

Embodiment 1

[0045] like Figure 1 to Figure 3 Shown is the first embodiment of an electric heating control method for an inverter air conditioner according to the present invention. The inverter air conditioner includes an indoor unit and an outdoor unit, and the indoor unit includes a casing 1, an evaporator 2, a wind deflector, an indoor fan, and an indoor controller , Waterproof PTC electric heater 3. Indoor ambient temperature sensor and indoor coil temperature sensor. The indoor fan is a DC motor, and the wind wheel used by the fan is a cross-flow wind wheel. 4. The controller includes a control chip, which includes an electric heating control Algorithm; its outdoor unit includes a compressor, an outdoor fan, an outdoor controller, an outdoor ambient temperature sensor and an outdoor coil temperature sensor; there is a communication line connection between the indoor controller and the outdoor controller.

[0046] like image 3 As shown, the shell 1 encloses the evaporator 2, the el...

Embodiment 2

[0060] The structure and other operating principles of the air conditioner in this embodiment are the same as those in Embodiment 1, and will not be described here. The operation control of the electric heater in the normal heating operation control state is associated with the outdoor ambient temperature Tw, and the predetermined thresholds are T21=10°C and T22=0°C.

[0061] When the outdoor ambient temperature sensor detects the outdoor ambient temperature T W When >T21, the electric heater is forbidden to be turned on;

[0062] When the outdoor ambient temperature sensor detects that the outdoor ambient temperature T22W When ≦T21, the electric heater is allowed to run for t1=5 minutes and then turn off for t2=2 minutes, and the cycle repeats.

[0063] When the outdoor ambient temperature sensor detects the outdoor ambient temperature T W When ≦T22, the electric heater is allowed to run fully.

[0064] When the electric heater is in normal heating operation, the electric ...

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Abstract

The invention relates to the technical field of air conditioners, specifically in particular to a frequency-conversion air-conditioner electrical heating control method. The frequency-conversion air-conditioner electrical heating control method includes that a wind wheel used for an air-conditioner indoor fan is the tubular wind wheel, and an electric heater is arranged between evaporators and the tubular wind wheel of an indoor unit; an temperature threshold T1 is preset, a frequency-conversion air conditioner judges whether defrosting conditions are met or not, an indoor controller closes a wind deflector, the electric heater is powered for heating, the air-conditioner indoor fan runs at the rotating speed lower than ultralow rotating speed of preset valve r, and an outdoor unit stops running; after defrosting, an outdoor fan and a compressor run, and when temperature Tp of an indoor coil is detected to be larger than T1, the air deflector is opened, and the electric heater exits a defrosting operation status and enters a normal heating operation control status to run according to heating operation mode. By the method, the defrosting process is quickened, and defrosting time is shortened.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, and more specifically, to an electric heating control method for frequency conversion air conditioners. Background technique [0002] In the prior art, the electric heater control of the general inverter air conditioner is to increase the power of the electric heater or add an additional mechanism to enhance the defrosting effect, resulting in increased cost and complicated system, and the defrosting effect is limited. ;During the heating operation of the inverter machine, the operation of the electric heater is generally not related to the operating frequency of the compressor, resulting in the operation of the electric heater when the compressor is running at low frequency, and the variable frequency operation of the inverter air conditioner is not fully utilized ability. [0003] The existing Chinese patent announcement number is CN201059689Y, which discloses a strong heating...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/00
Inventor 王斌
Owner GUANGDONG KELON AIR CONDITIONER
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