Air conditioner and its control method

A control method and air-conditioning technology, applied in air-conditioning systems, heating and ventilation control systems, heating methods, etc., can solve the problems of condensation water frosting, affecting the operation reliability of compressor units, and freezing.

CN108050585BActive Publication Date: 2019-12-31QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-12-31

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Abstract

A control method for an air conditioner (1), an indoor unit of the air conditioner (1) comprising a first section (10a) and a second section (10b) divided in a transversal direction of the indoor unit; a first crossflow fan (310) and a second crossflow fan (320) are respectively provided inside the first section (10a) and the second section (10b); an indoor unit heat exchanger (300) extends in the transversal direction of the indoor unit, and comprises a first segment (300a) located in the first section (10a) and a second segment (300b) located in the second section (10b); the first section (10a) is further provided with a temperature detection device (410) which is used for detecting the temperature of the first segment (300a) of the indoor unit heat exchanger (300). The control method comprises: acquiring opening / closing states of the two crossflow fans during the cooling process of the air conditioner (1); continuously detecting the temperature of the first segment (300a) of the indoor unit heat exchanger (300) by means of the temperature detection device (410); and determining an operation mode of a compressor (100) of the air conditioner (1) in accordance with the opening / closing states of the crossflow fans and the temperature of the first segment (300a) of the indoor unit heat exchanger (300). Further disclosed is an air conditioner (1) to which the above control method is applied.
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Description

technical field

[0001] The invention relates to the field of air conditioners, in particular to an air conditioner and a control method thereof. Background technique

[0002] When the air conditioner is cooling, the refrigerant passes through the compressor, condenser and evaporator in sequence. The evaporator is in a low temperature state for a long time, so it is easy to make the condensed water frost or even freeze on the surface of the evaporator. If measures are not taken in time, the frost or ice will become thicker and thicker, which will cause the air conditioner to have no cooling capacity, seriously affect the use of the air conditioner and user experience, and also affect the operation reliability of the compressor unit. Therefore, how to protect the air conditioner against freezing reasonably and in time is the main subject of research in the field of air conditioner. Contents of the invention

[0003] In view of the above problems, the present invention is p...

Examples

Embodiment Construction

[0025] This embodiment firstly provides an air conditioner, including: a refrigeration / heating cycle system composed of a compressor 100 , an indoor unit heat exchanger 300 , and an outdoor unit heat exchanger 200 . During cooling of the air conditioner, the refrigerant passes through the compressor 100 , the outdoor unit heat exchanger 300 and the indoor unit heat exchanger 200 in sequence. Since the heat exchanger 300 of the indoor unit is in a low temperature state for a long time, frost is likely to form.

[0026] The above-mentioned indoor unit includes: a housing, a first cross-flow fan 310 , a second cross-flow fan 320 , two air outlets 330 , an indoor unit heat exchanger 300 and a temperature detection device 410 . The interior of the indoor unit includes a first section and a second section divided horizontally along the indoor unit. The first cross-flow fan 310 is set inside the first section; the second cross-flow fan 320 is set inside the second section, that is t...