Noise reducing device, manufacturing method thereof and freezer

A noise reduction and refrigerant technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as poor noise reduction effects, achieve the effects of improving hearing, solving eruption noise, and reducing noise

Inactive Publication Date: 2014-07-09
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a noise reduction device, a manufacturing method and a refrigerator, which can solve the problem of poor noise reduction effect existing in the prior art

Method used

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  • Noise reducing device, manufacturing method thereof and freezer
  • Noise reducing device, manufacturing method thereof and freezer
  • Noise reducing device, manufacturing method thereof and freezer

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] refer to figure 2 As shown, a noise reduction device includes a pipe body 1. A conical cap 2 is provided inside the pipe body 1. Both ends of the pipe body 1 have necks 11 and 12, and one end of the neck 11 is connected to the refrigerant inlet. The tube 3 has a constricted port 12 at the other end to connect the refrigerant outlet tube 4.

[0033] like Figure 2-4 As shown, the conical cap 2 includes a central conical body 21 and a surrounding flange 22 , and the conical cap 2 is installed in the inner cavity of the tubular body 1 through the interference fit between the flange 22 and the inner wall of the tubular body 1 . The extension direction of the flange 22 around the conical cap 2 is the same as that of the cone 21 , and the extension direction of the flange 22 faces the refrigerant inlet pipe 3 , that is, the tip of...

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Abstract

The invention provides a noise reducing device, a manufacturing method thereof and a freezer and solves the problem of poor noise reducing effects in the prior art. According to the technical scheme, the noise reducing device comprises a tubular body, both ends of the tubular body are provided with necked openings, one of the necked opening is connected with a refrigerant inlet pipe, and the other necked opening is connected with a refrigerant outlet pipe; the inside of the tubular body is provided with at least one taper cap, the taper cap is provided with a plurality of silencing holes and at least two liquid separating holes. The invention also provides the manufacturing method of the noise reducing device and the freezer comprising the noise reducing device. The noise reducing device can fully release the pressure of jet flow of capillary pipes, diverse the jet flow through the taper cap to achieve gas-liquid separation, filter sound waves through the round holes in the taper cap, achieve reflection and attenuation of sound waves within a certain frequency band in a first chamber and a second chamber to effectively reduce noise, solve the problem of noise emission of the freezer system of a refrigerator and improve the auditory feeling of users.

Description

technical field [0001] The invention belongs to the technical field of refrigerators, and in particular relates to a noise reduction device, a manufacturing method and a refrigerator. Background technique [0002] The refrigeration system of the freezer usually uses capillary throttling to reduce pressure. Its function is to throttle the high-pressure and medium-temperature refrigerant liquid into a low-pressure and medium-temperature gas-liquid mixture. The liquid mixture is suddenly converted from the capillary tube with an inner diameter of 0.66-1.2mm to the evaporator space with an inner diameter of 4-6mm. Due to the sudden change of pressure, the impact of gas-liquid collision and jet turbulence, it is easy to generate large fluid noise. It is manifested in the user's hearing as a kind of noise, which may not have a high decibel value, but its loudness and poor sound quality make people feel bored, so users complain larger. [0003] Due to the lack of mathematical ana...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/00B23P15/00
Inventor 肖长亮刘越王哲芦小飞成俊亮姚书强刘占起孙科
Owner HAIER GRP CORP
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