Protection method and protection device of air conditioner system

Abstract

The invention provides a protection method of an air conditioner system. The method comprises the following steps that (1) the pressure value P0 inside an exhaust pipe of a compressor of the air conditioner system is detected; (2) P0 is compared with a first preset value P1; (3) when P0 is greater than P1, the operation of an outer fan of the air conditioner system stops. According to the protection method of the air conditioner system, the operation state of the outer fan is controlled through detecting the pressure value inside the exhaust pipe of the compressor of an outdoor unit, and the control on the pipe temperature of an indoor unit is realized, so the high-temperature-prevention protection on the air conditioner system is realized, the service life of the compressor of the air conditioner system is prolonged, the reliability of the whole machine unit is improved, and meanwhile, the after-sale fault rate of the air conditioner unit is also reduced. The invention also provides a protection device of the air conditioner system.

Description

technical field [0001] The invention relates to the technical field of high-temperature protection of an air-conditioning system, and more specifically, relates to a protection method and a protection device for an air-conditioning system. Background technique [0002] With the rapid development of industry and economy, air conditioners are gradually being widely used. Air conditioners are divided into indoor units and outdoor units. Consumers often use indoor units and outdoor units from different manufacturers in pairs. In order to make the indoor unit and outdoor unit of different manufacturers compatible and used together, the manufacturer adopts 24V control in the design of the control mode of the unit, that is, there is no data communication between the indoor unit and the outdoor unit, and the use of 24V control is relatively simple and the cost is low. Lower, but also easy to sell. [0003] However, the 24V control method has defects in protecting the reliable oper...

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Problems solved by technology

[0003] However, the 24V control method has defects in protecting the reliable operation of the unit, because the indoor unit and the outdoor unit cannot obtain the operating status of each other, especially when the air conditioner is in heating operation, because the outdoor unit cannot obtain the tube temperature of the indoor unit, when the internal unit cannot When the temperature of the engine tube is too high, the unit has no corresponding anti-high temperature protection measures, and can only protect the engine and the entire unit through the internal protection of the compressor.

However, the self-protection device of the compressor is mainly used to protect the motor inside the compressor from being burned out, and does not consider the adverse effects on the compressor and the entire unit when the temperature of the indoor unit tube is high

At present, there is no corresponding anti-high temperature protection measure, which leads to the low service life of the air-conditioning compressor and the low reliability of the whole unit, and also makes the after-sales failure rate of the air-conditioning unit higher

[0004] In addition, when the temperature of the internal tube of the compressor is too high, the compressor's self-protection device will cause the compressor to be built frequently, which affects the normal use of the user and reduces the comfort of the air conditioner.

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