Outdoor machine of air-conditioner with outdoor machine fan operating state sensing system
A technology of air conditioner outdoor unit and operating state, applied in heating and ventilation control system, heating and ventilation safety system, air conditioning system, etc., can solve problems such as compressor damage, achieve convenient maintenance and enhance market competitiveness
Inactive Publication Date: 2009-05-06
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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Problems solved by technology
[0004] like image 3 As shown, when the outdoor unit of the air conditioner in the prior art is running, the compressor 6 starts and the outdoor fan 7 runs. At present, there is no other control for the fan of the outdoor unit of the air conditioner. Cause the compressor overload protection switch to act, what's more, cause the compressor to be damaged
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[0014] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0015] The working principle of the air conditioner of the present invention is the same as that of the prior art, and the prior art can be referred to, so it will not be described again. The difference between the present invention and the prior art is that a pressure sensor is added on the exhaust grille, which is carried out below Detailed explanation:
[0016] Such as Figure 4 As shown, the air-conditioning outdoor unit with the outdoor unit fan operating state perception system of the present invention mainly includes four sides constituting the outdoor unit, the front end surface is provided with an exhaust grille 1, and the rear end surface is provided with a plurality of air inlets The housing 4; the chassis 5 which is arranged on the lower part of the housing 4 and on which the various components of the outdoor unit can be installed; ...
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The invention discloses an air-conditioner outdoor unit with a running-state sensing system for an outdoor unit fan. A pressure sensor is arranged on an exhaust grille and is connected to a circuit board of an outdoor control box. When an outdoor fan is abnormal in operation, the pressure sensor transmits signals of the circuit board of the outdoor control box to an indoor circuit board according to sensed wind pressure, so as to power off the indoor circuit board. The outdoor unit has the advantages that the wind pressure is sensed through the arrangement of the pressure sensor; once the fan stops running according to defrosting and heating overload logic, the indoor circuit board is powered off, and a compressor shuts down till the fan is maintained by personnel; till the pressure is recovered and the circuit board is powered on, the compressor starts to work again; and the outdoor unit can ensure that air conditioners are more convenient to maintain, and can strengthen the market competitiveness of air conditioner products.
Description
technical field [0001] The invention relates to an air conditioner, in particular to an air conditioner outdoor unit with an outdoor unit fan operating state sensing system. Background technique [0002] An air conditioner is a device that makes its internal refrigerant undergo a refrigeration or heating cycle consisting of a compression process, condensation process, expansion process, and evaporation process. When the air conditioner is in the refrigeration cycle, the refrigerant compressed by the compressor and turned into a high-temperature and high-pressure state can flow to the condenser under the guidance of the four-way valve, and dissipate heat to the outside in the condenser, and then significantly reduce when flowing through the expansion valve. Its temperature and pressure, then the low-temperature, low-pressure refrigerant absorbs heat as it flows through the evaporator, and finally passes through the liquid storage tank and flows back into the compressor. Amon...
Claims
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IPC IPC(8): F24F1/00F24F11/02
Inventor 梁涛
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD