Cabinet air-conditioner outdoor machine defrosting device

Abstract

The invention discloses a defrosting device of an outdoor cabinet type air conditioner, which is applied to the defrosting field of an air conditioner. The outdoor cabinet type air conditioner comprises a heat exchanger which is constituted by brass pipes which are arrayed in parallel, the outer side of the heat exchanger is provided with a heating wire which is arranged on a frame, the frame is directly fixed on the heat exchanger through a screw bolt, and the frame is a square brandreth. A plurality of holes are arranged on the left and right sides of the frame, the heating wire which is wound in S-shape is penetrated into the hole, simultaneously, the heating wire is composed of carbon fibers, the trend of the heating wire is coincident with the trend of the brass pipe in the heat exchanger, and row number of the heating wires are approximately equal to the row number of the brass pipes in the heat exchanger. Further, a switch is controlled by the heating wire through an outdoor printed circuit board, and a power supply is arranged on the printed circuit board. The invention raises air inlet temperature of an outdoor machine, delays frost formation, and accelerates defrosting speed.

Description

technical field [0001] The invention relates to a defrosting device for an outdoor unit of an air conditioner cabinet, in particular to a defrosting device for an outdoor unit of an air conditioner cabinet which increases the temperature of the air inlet of the outdoor unit by adding heating wires to achieve a defrosting effect. Background technique [0002] The air conditioner in the prior art is a device that supplies low-temperature air through a refrigeration circuit. When low-temperature refrigerant is supplied to the heat exchanger of the indoor unit, the heat exchanger in the indoor unit exchanges heat with the surrounding air to generate cold air. This cold air is blown into the indoor space by the blower fan. When flowing through the heat exchanger of the indoor unit, the gasified refrigerant flows into the outdoor unit, and when it flows into the compressor and heat exchanger of the outdoor unit, it is liquefied again, and then returns to the heat exchanger of the ...

AI Technical Summary

Problems solved by technology

In this way, the frosting speed is very fast, and the heating capacity of the air conditioner is seriously affected after the frosting, so that the heating capacity of the air conditioner drops rapidly, and it cannot provide enough heat to the user.

And it is difficult to remove all of them when defrosting

[0008] Therefore, a problem existing in the low-temperature operation of the air conditioner in the prior art is: when the air conditioner operates at low temperature, due to the low outdoor temperature, the sensible heat in the air is very small, and the heat exchange mainly depends on the latent heat in the air. causes frost to form very quickly

Seriously affect the heating capacity of the air conditioner

[0009] Another problem existing in the operation of the air conditioner in the prior art is: because the outdoor unit of the air conditioner cabinet is frosted faster, which seriously affects the heat exchange capacity, and it is difficult to completely remove it during defrosting.

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