An air conditioner and its control method
A control method and technology for air conditioners, which are applied to control inputs involving air characteristics, space heating and ventilation control inputs, refrigerators, etc. The effect of using the experience
Active Publication Date: 2020-11-03
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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Problems solved by technology
When the air conditioner is in normal operation, the compressor can only increase the temperature and pressure of the refrigerant according to a fixed single compression sequence mode. However, due to the influence of various factors such as outdoor ambient temperature and indoor temperature, under different working conditions, the air conditioner The air conditioner puts forward different requirements for the operating frequency and compression efficiency of the compressor, so the conventional compressor often has useless power consumption when it operates in its single compression mode, and cannot reach the best energy efficiency operation state of the air conditioner
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[0036] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. Herein, various embodiments may be referred to individually or collectively by the term "invention", which is for convenience only and is not intended to automatically limit the scope of this application if in fact more than one invention is disclosed. A single invention or inventive concept. Herein, relational terms such...
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The invention discloses an air conditioner and a control method, and belongs to the technical field of air conditioners. The air conditioner comprises a capacity-variable compressor. The operation modes of the capacity-variable compressor include the double-stage mode and the double-cylinder mode. An indoor unit of the air conditioner at least comprises a first heat exchange unit and a second heat exchange unit, wherein when the capacity-variable compressor works in the double-stage mode, a refrigerant flow path of the first heat exchange unit is blocked. The control method comprises the steps that the indoor temperature, the target heating temperature and the sleep period are acquired; the air conditioner is controlled to work in the double-stage mode; and when the air conditioner works during the sleep period, the first heat exchange unit is controlled to stop working, and the second heat exchange unit works in a heating mode. By the adoption of the control method, the capacity-variable compressor of the air conditioner can be controlled to work in the double-stage mode according to the indoor temperature conditions in winter, and therefore the refrigerant outputted by the capacity-variable compressor can meet the requirement for the refrigerant quantity in the heating process of the heat exchange units of the air conditioner, and the situation that the air conditioner can work in the best energy efficiency state is guaranteed.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method. Background technique [0002] Conventional air conditioners mostly use mechanical compressors to increase the temperature and pressure of the refrigerant, such as piston compressors, screw compressors, centrifugal compressors, linear compressors, etc. According to the number of compression cylinders inside the compressor, It can be divided into single-cylinder compressors, double-cylinder compressors and multi-cylinder compressors. Among them, for double-cylinder and multi-cylinder compressors with not less than one cylinder, the compression process is based on the connection between multiple cylinders. In order, the refrigerant is compressed in multiple stages in sequence. When the air conditioner is in normal operation, the compressor can only increase the temperature and pressure of the refrigerant according to a fixed single ...
Claims
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IPC IPC(8): F24F11/64F24F11/65F24F11/77F25B49/02
CPCF24F11/30F24F11/64F24F11/65F24F11/70F24F2110/00F24F2110/10Y02B30/70
Inventor 罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD