Refrigerator generating less noise

A refrigeration device, noise technology, applied in the direction of refrigeration device isolation, household refrigeration devices, refrigerators, etc., can solve the problems of increasing weight and cost, reducing the usable volume of internal space, etc.

CN102132116AInactive Publication Date: 2011-07-20BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2011-07-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed is a refrigerator comprising a wall (6, 18) that surrounds a chilled interior (3) and has a heat-insulating layer (9), and a component (8, 16) which transmits structure-borne noise to the wall (6, 18). In said refrigerator, a vibration-damping layer (11) containing bitumen is mounted on an external face of the heat-insulating layer (9) of the wall (6, 18).
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Description

technical field

[0001] The invention relates to a refrigeration device having components emitting operating noise and means for suppressing the outward propagation of such operating noise. Background technique

[0002] DE 198 18 993 A1 describes a refrigerating device with a wall enclosing a refrigerated interior with a thermal insulation and an evaporator mounted on the side of the thermal insulation facing the interior , and the turbulence of the injected refrigerant causes vibrations. In order to reduce the transmission of evaporator vibrations to the insulation layer and their transmission to the outside of the layer, a bitumen film is applied to the evaporator. The bitumen film increases the mass of the evaporator, thereby changing its natural vibration frequency, so that the evaporator resists as much as possible the vibrations caused by the excitation frequencies acting on it during operation.

[0003] Complete damping of evaporator vibrations is not achieved by bit...

Examples

Embodiment Construction

[0021] figure 1 The housing of the refrigerating device shown in , comprises, in a known manner, a frame 1 and at least one door 2 hinged to the frame 1 , which together with said frame 1 delimits a refrigerated compartment 3 . Cut out from the back of the skeleton 1 is a machine compartment 4 in which a compressor 5 is housed. The compressor, as well as the condenser 7 and the evaporator 8 located outside the rear wall 6 of the frame 1 are part of the refrigerant circuit. The evaporator 8 is enclosed between a layer of heat insulating material 9 and a plastic liner delimiting the refrigerated compartment 3 .

[0022] Refrigerant from the condenser 7 reaches the evaporator 8 through narrow capillary tubes 10 . When the refrigerant flows out of the capillary tube 10 into the evaporator 8, turbulence may be generated which may cause the evaporator 8 to vibrate. These vibrations are transmitted to the layer of insulating material 9 and, if not effectively dampened, can cause t...