Multi-split air conditioner electronic expansion valve control method and multi-split air conditioner
A technology of electronic expansion valve and control method, applied in air-conditioning systems, heating and ventilation control systems, heating methods, etc., can solve the problem that the air conditioner cannot meet the optimal refrigeration or heating cycle state, the air conditioner does not have optimal performance, etc. problem, to achieve excellent performance and good effect
Active Publication Date: 2019-11-19
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide an electronic expansion valve control method for a multi-air conditioner and a multi-air conditioner, so as to solve the problem that the electronic expansion valve control method for a multi-air conditioner in the prior art cannot meet the optimal requirements of the air conditioner. The freezing or heating cycle state prevents the air conditioner from performing its best performance.
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[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0029] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.
[0030] It should be not...
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The invention relates to the technical field of air conditioning and discloses a multi-split air conditioner electronic expansion valve control method and a multi-split air conditioner. The multi-split air conditioner electronic expansion valve control method comprises the steps that step S1, the inner coil pipe average temperature is obtained according to the inner coil pipe temperature of each indoor unit; step S2, the inner coil pipe real-time temperature of each indoor unit is obtained; step S3, the inner coil pipe temperature difference value of each indoor unit is obtained according to the inner coil pipe real-time temperature of each indoor unit and the inner coil pipe average temperature; step S4, the inner coil pipe temperature difference value of each indoor unit is confirmed notto fall within the range of a first preset temperature difference value, the inner coil pipe temperature reference value is set as the inner coil pipe temperature difference value of each indoor unit, the running mode of the multi-split air conditioner is obtained, and the electronic expansion valve opening degree is adjusted according to relation between the inner coil pipe temperature referencevalue and first valve opening degree adjustment value. The electronic expansion valve control method has the advantage of being capable of realizing fine and accurate adjustment on the electronic expansion valve opening degree.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to an electronic expansion valve control method for a one-drag multi-air conditioner and a one-drag multi-air conditioner. Background technique [0002] At present, the development of the air-conditioning field is becoming more and more mature, and the competition is becoming more and more fierce. With the improvement of consumer requirements, more and more high-rise buildings have decided that each household can only install one air-conditioning outdoor unit. Advanced central air conditioners will become more and more popular with users. Only one outdoor unit can be installed with multiple indoor units to meet the needs of multiple rooms. At present, similar air conditioners with multi-control, one-drag, and small multi-connected air conditioners on the market can meet this requirement. [0003] However, the mainstream electronic expansion valve method of the existing one...
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IPC IPC(8): F24F11/64F24F11/65F24F11/84F24F1/0003F24F140/20
CPCF24F1/0003F24F11/64F24F11/65F24F11/84F24F2140/20
Inventor 张晨飞王德平朱豪罗祖春徐菲菲
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD