Air conditioner and its control method
A technology of an air conditioner and a control method, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve problems such as difficulty in continuous operation, inability to achieve continuous operation, limited capacity, etc., to ensure refrigeration. Heating performance, long-term continuous operation, and damage prevention effects
Inactive Publication Date: 2018-12-04
LG ELECTRONICS INC
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Problems solved by technology
[0007] If the voltage of the power supply to the air conditioner is low in an environment where the supplied commercial power supply is unstable, or if the voltage of the power supply to the air conditioner such as a generator etc. fluctuates greatly due to irregular waveforms of the power supply, then, There is a problem that continuous operation is difficult even when the compressor is on
Usually, the generator used is a low-capacity generator, and the power supplied is also an unstable working power source with large voltage fluctuations.
[0008] In particular, a large starting current is required to start the compressor, so when the supplied power is low voltage or powered by a small-capacity generator, even if the compressor starts normally, the capacity of the generator is limited. Since operation and stop are repeated, not only cannot continuous operation be achieved, but also the cooling and heating efficiency is lowered.
In addition, in the case of repeated operation and stop, the compressor may be damaged
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[0023] The advantages, features and methods for achieving the advantages and features of the present invention will become more apparent by referring to the accompanying drawings and the embodiments described in detail below. However, the present invention is not limited only to the embodiments disclosed below, but can be realized in various forms. However, these embodiments are provided to make the disclosure of the present invention more complete and to enable those skilled in the art to understand the full scope of the present invention, and the present invention is limited only by the appended claims. Throughout the specification, the same reference numerals refer to the same parts.
[0024] Embodiments of the present invention will be described in detail below with reference to the drawings.
[0025] figure 1 It is a figure which shows the structure of the air conditioner of this invention. refer to figure 1 , the air conditioner includes an indoor unit 1 and an outdo...
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The present invention relates to an air conditioner and a method for controlling the same. The present invention recognizes an operation mode for a generator power supply and thereby sets a generator mode, and when setting the generator mode, controls the operation frequency of a compressor so that power consumption of an air conditioner, which is computed from the voltage, does not exceed a reference value for the generator mode. Thereby, even if an unstable low-voltage, low-capacity power supply is inputted, the present invention controls the power consumption of the air conditioner and thus maintains operation, resulting in an effect of providing cooling performance and simultaneously enabling long-term continuous operation. In addition, the present invention prevents damage to the compressor and can carry out consistent operation regardless of the power supply being supplied, resulting in great improvement in user convenience.
Description
[0001] This application claims the priority of Korean Patent Application No. 10-2014-0071733 filed with the Korean Intellectual Property Office on June 12, 2014, the entire contents of which are incorporated herein by reference. technical field [0002] The invention relates to an air conditioner and its control method, in particular to an air conditioner capable of continuous operation even with a small-capacity, low-voltage working power supply and its control method. Background technique [0003] In order to realize a comfortable indoor environment, the air conditioner adjusts the indoor temperature and purifies the indoor air by discharging cold or hot air indoors, thereby providing a more comfortable indoor environment for human beings. Generally, an air conditioner includes: an indoor unit composed of a heat exchanger and installed indoors; an outdoor unit composed of a compressor, a heat exchanger, and the like, for supplying refrigerant to the indoor unit. [0004] I...
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IPC IPC(8): F24F11/88F24F11/64F24F11/86F24F11/56
CPCF24F11/89
Inventor 杨庾晶黄钟喆金镇成
Owner LG ELECTRONICS INC