CN2132121Y

CN2132121Y - Low-noise air conditioner in room

Info

Publication number: CN2132121Y
Application number: CN 92236202
Authority: CN
Inventors: 吴迪泉; 张卫红
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-16
Filing date: 1992-10-16
Publication date: 1993-05-05
Anticipated expiration: 2002-10-16

Abstract

The utility model provides a low-noise room air conditioner, comprising a compressor, a liquor storing tank, a damping pad, a condenser, an axial flow fan, an evaporator, a centrifugal fan, the volute of the centrifugal fan, an exhaust pipe and an air-return pipe. A chassis, the lower surface of the filter board, the outer shell of the compressor and the liquor storing tank, one side of the siding facing the compressor and other positions are pasted with elastic material, the compressor and the liquor storing tank are add the soundproof covers; the volute of the centrifugal fan is made by sound absorption material; the exhaust pipe and the air-return pipe adopt a hose structure. Because the utility model adopts above noise reduction measures, the noise of the air-conditioner is evidently reduced, and the indoor noise of the air-conditioner with 1800 nominal refrigerating capacity is lower than 45 dB, and the outdoor noise of the air-conditioner with 1800 nominal refrigerating capacity lower than 49 dB under the intensive cooling operating condition.

Description

Low-noise air conditioner in room

The utility model relates to a kind of air-conditioner, belongs to the air handling system or the equipment of mechanical engineering part.

The noise of room air conditioner is bigger at present, influences people's work and life, is example with 1800 watts of nominal refrigerating capacitys, and the general indoor of noise under strong cold operating mode is more than 58dB, and the outside is more than 62dB.

The purpose of this utility model is to reduce the work noise of room air conditioner, to reduce it people's working and learning is influenced.

The purpose of this utility model is achieved in that on the basis that does not change room air conditioner basic structure, adds the cover that holds one's breath and keep quiet at compressor and receiver outside; Using the centrifugal fan spiral case instead sound-absorbing material makes; Blast pipe and muffler adopt hose construction.

Owing to taked above measure, the vibration noise that compressor in the feasible cover that holds one's breath and keep quiet and receiver produce can't be to external radiation; The pneumatic noise that produces in the centrifugal fan snail road is absorbed in a large number by spiral case; The destroyed and minimizing of vibration along blast pipe and muffler transmission obviously reduces the air-conditioner work noise.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model structure principle chart.

A kind of low noise room air conditioner is by compressor 6 shown in the figure, receiver 7, rubber damper 4, condenser 9, aerofoil fan 10, evaporimeter 13, centrifugal fan 12, centrifugal fan spiral case 2 and blast pipe 8 and muffler 14 are formed, centrifugal fan adds 10-100 order silk screen cover, 1 lower surface on the chassis, rebound 5 lower surfaces, the shell of compressor 6 and receiver 7, it is 1-10mm that wallboard 11 is all pasted thickness towards positions such as compressor one sides, the visco-elastic damping material that size does not wait, it is characterized in that: compressor 6 and receiver 7 add a thin plate hold one's breath and keep quiet the cover 3, the cover inner surface that holds one's breath and keep quiet is also pasted one deck elastic damping material, and the noise that compressor and receiver are produced can't be absorbed to external radiation; Centrifugal fan spiral case 2 is used instead the sponge of certain mechanical strength and manufactured, make it have sound absorbing capabilities, to absorb the pneumatic noise that produces in the spiral case; The hose construction that changes the blast pipe 8 and the muffler 14 of former employing hard tube into φ 3-φ 25mm copper bellows is to reduce transfer of vibration.

After taking above noise reduction measure, the work noise of room air conditioner obviously reduces, as the air-conditioner of 1800 watts of nominal refrigerating capacitys under strong cold operating mode, room noise reduces to below the 45dB outdoor noise＜49dB.

Claims

1, a kind of low noise room air conditioner is made up of compressor 6, receiver 7, cushion blocking 4, condenser 9, aerofoil fan 10, evaporimeter 13, centrifugal fan 12, centrifugal fan spiral case 2 and blast pipe 8 and muffler 14, centrifugal fan 12, add guard, 1 lower surface, rebound 5 lower surfaces on the chassis, compressor 6 shells, receiver 7 shells, wallboard 11 are all pasted elastic damping material towards positions such as compressor one sides, it is characterized in that: compressor 6 and receiver 7 add the cover 3 that holds one's breath and keep quiet; Centrifugal fan spiral case 2 adopts sound-absorbing material to make; Blast pipe 8 and muffler 14 adopt hose construction.

2, low noise room air conditioner according to claim 1 is characterized in that the inner surface of the said cover 3 that holds one's breath and keep quiet is pasted visco-elastic damping material.

3, low noise room air conditioner according to claim 1 is characterized in that 2 employings of centrifugal fan spiral case have the sponge of certain mechanical strength to make.

4, low noise room air conditioner according to claim 1 is characterized in that blast pipe 8 and muffler 14 are the copper flexible pipe of φ 3-φ 25.