CN100419262C - Fully-enclosed refrigerating compressor noise-reduction case and method for manufacturing same - Google Patents
Fully-enclosed refrigerating compressor noise-reduction case and method for manufacturing same Download PDFInfo
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- CN100419262C CN100419262C CNB2005100198899A CN200510019889A CN100419262C CN 100419262 C CN100419262 C CN 100419262C CN B2005100198899 A CNB2005100198899 A CN B2005100198899A CN 200510019889 A CN200510019889 A CN 200510019889A CN 100419262 C CN100419262 C CN 100419262C
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- lower casing
- loam cake
- wall
- densely covered
- reduction case
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Abstract
The invention relates to a noise reduction shell for hermetic refrigerating compressor and the manufacturing method, belonging to the manufacturing technology of refrigerating compressor, characterized in that densely covered dent or convex point is set in the inner or outer or in-out walls of upper cover and lower shell. The manufacturing method is that the densely covered dent is fabricated at the inner and outer surfaces of shell by mechanical or chemical corrosion method and the densely covered convex point can be sprayed at the inner and outer surfaces by polymers. The noise reduction shell is provided with simple structure, convenience operation, and good efficiency for noise reduction and applied in improving the shell of various refrigerating compressor.
Description
(1) technical field:
The present invention relates to the manufacturing technology of refrigeration compressor, particularly fully-enclosed refrigerating compressor noise-reduction case and manufacture method.
(2) background technique:
The noise reduction approach of refrigeration compressor mainly contains the raising machining accuracy, and runner reasonable in design adopts silencing apparatus efficiently, and above-mentioned technical development has reached a suitable level so far, and the cost that decibel of continuation reduction is paid is very expensive.Another approach that effectively reduces noise is exactly to improve the housing of compressor, mainly is to design double-deck sound insulation housing or directly add thick shell in the prior art, and its defective is significantly, and cost of material increases.In current market competition fierce day by day today, said method obviously is worthless.Remove the minority specialities and have to adopt expensive technology, most of products can't be used expensive technology.
(3) summary of the invention:
It is undesirable to the objective of the invention is to overcome existing ordinary refrigerant compressor housing noise reduction, provides a kind of to need to increase a small amount of cost, simple in structure, simple fully-enclosed refrigerating compressor noise-reduction case of technology and manufacture method.
Concrete scheme of the present invention is: the inwall of case top lid and lower casing or outer wall or inside and outside wall are made the surface with densely covered pit or salient point, be noise-reduction case of the present invention.
One of manufacture method of the above-mentioned noise-reduction case of the present invention is: at first carry out the impact briquetting basic shape, carry out shot blast or adopt roll cast technology to get densely covered pit at the inwall of loam cake and lower casing or outer wall or inside and outside wall through compressed air shotblasting machine again.
Two of the manufacture method of the above-mentioned noise-reduction case of the present invention is: at first carry out the impact briquetting basic shape, adopt chemical mordant to leave densely covered pit at the inwall of loam cake and lower casing or outer wall or inside and outside wall again.
Three of the manufacture method of the above-mentioned noise-reduction case of the present invention is: the respective face of its cavity surface of press tool is left scraggly surface, adopt heavy-duty press and above-mentioned press tool that loam cake and lower casing is one time punching molded again, make inwall or the outer wall or the densely covered pit of inside and outside wall generation of loam cake and lower casing.
Four of the manufacture method of the above-mentioned noise-reduction case of the present invention is: at first carry out the impact briquetting basic shape, spray out densely covered macromolecular material salient point again on the inwall of loam cake and lower casing or outer wall or inside and outside wall surface.
Principle of the present invention is: when compressor operating, the pit that the noise of generation can be gathered by the housing inside and outside wall or the surface of salient point cancel each other each sound wave effectively with the random scatters of sound wave travel direction, thereby reach the effect that reduces noise.
Noise-reduction case of the present invention is simple in structure, its moulding process is simple, cost of production is low, noise reduction is remarkable, have great application and commercial value, the noise-reduction case that adopts the present invention's production is than direct thickening type noise-reduction case, and every cost can reduce more than three yuans, in the manufacturer that produces 4000000 per year, its economic benefit is very considerable for general scale.
(4) description of drawings:
Fig. 1 is the loam cake stereogram of noise-reduction case of the present invention;
Fig. 2 is the lower casing stereogram of noise-reduction case of the present invention.
Among the figure: 1-loam cake, 2-lower casing.
(5) embodiment:
Example 1: at first get the thick steel plate cutting of 3mm, take existing method to stamp out the basic appearance structure of loam cake 1 and lower casing 2 by Fig. 1 Fig. 2, the inwall (or outer wall or inside and outside wall) with above-mentioned moulding loam cake 1 and lower casing 2 carries out shot-peening or roll cast processing on compressed air shotblasting machine or roll cast machine again.Promptly get densely covered pit, can make noise-reduction case of the present invention at the inside and outside wall of loam cake 1 and lower casing 2.
Example 2: at first by the loam cake 1 of example 1 blanking punching out noise-reduction case and the basic structure of lower casing 2, paste the mesh Polypropylence Sheet at the loam cake 1 of moulding and the outer wall of lower casing 2 (or inwall or inside and outside wall) again, take chemical corrosion liquid (as sulfuric acid, hydrochloric acid etc.), on brushing loam cake 1 and the lower casing 2, porose surface promptly is corroded, behind certain hour, clean the pit that then can make the cloth that gathers at the outer wall of loam cake 1 and lower casing 2, can make noise-reduction case of the present invention.
Example 3: at first by the loam cake 1 of example 1 blanking punching out noise-reduction case and the basic structure of lower casing 2, adopt inwall (or outer wall or inside and outside wall) the spraying macromolecular material of spray gun again at loam cake 1 and lower casing 2, this coating should form densely covered salient point layer (time post mesh cloth or adopt special spray gun as spraying), can make noise-reduction case of the present invention.
Example 4: at first get steel plate cutting, one time punching molded through special press tool again.Leave the surface of gather salient point or pit on the respective face that described special mould is its cavity surface (inwall or the outer wall surface of corresponding loam cake 1 and lower casing 2).
The present invention can reduce noise 1-2 decibel after adopting on the QD68YZ type compressor, have tangible noise reduction, and in Compressor Technology very ripe today, real is rare.
Claims (5)
1. fully-enclosed refrigerating compressor noise-reduction case includes loam cake and lower casing, it is characterized in that: the inwall of loam cake and lower casing or outer wall or inside and outside wall are shaped on densely covered pit or densely covered salient point.
2. make the manufacture method of the described fully-enclosed refrigerating compressor noise-reduction case of claim 1, it is characterized in that: at first carry out the impact briquetting basic shape, carry out shot blast or adopt roll cast technology to get densely covered pit through compressed air shotblasting machine again at the inwall of loam cake and lower casing or outer wall or inside and outside wall.
3. make the manufacture method of the described fully-enclosed refrigerating compressor noise-reduction case of claim 1, it is characterized in that: at first carry out the impact briquetting basic shape, adopt chemical mordant to leave densely covered pit again at the inwall of loam cake and lower casing or outer wall or inside and outside wall.
4. make the manufacture method of the described fully-enclosed refrigerating compressor noise-reduction case of claim 1, it is characterized in that: the respective face of its cavity surface of press tool is left scraggly surface, adopt heavy-duty press and above-mentioned press tool that loam cake and lower casing is one time punching molded again, make inwall or the outer wall or the densely covered pit of inside and outside wall generation of loam cake and lower casing.
5. make the manufacture method of the described fully-enclosed refrigerating compressor noise-reduction case of claim 1, it is characterized in that: at first carry out the impact briquetting basic shape, on the inwall of loam cake and lower casing or outer wall or inside and outside wall surface, spray out densely covered macromolecular material salient point again.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2005100198899A CN100419262C (en) | 2005-11-25 | 2005-11-25 | Fully-enclosed refrigerating compressor noise-reduction case and method for manufacturing same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2005100198899A CN100419262C (en) | 2005-11-25 | 2005-11-25 | Fully-enclosed refrigerating compressor noise-reduction case and method for manufacturing same |
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Publication Number | Publication Date |
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CN1971044A CN1971044A (en) | 2007-05-30 |
CN100419262C true CN100419262C (en) | 2008-09-17 |
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CNB2005100198899A Active CN100419262C (en) | 2005-11-25 | 2005-11-25 | Fully-enclosed refrigerating compressor noise-reduction case and method for manufacturing same |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104121693A (en) * | 2014-05-31 | 2014-10-29 | 党路明 | Novel method and device for shower hot water production and system noise and water temperature control |
CN103982400A (en) * | 2014-06-06 | 2014-08-13 | 黄石祥宇轻工配件有限公司 | Suction muffler with high noise reduction performance of refrigeration compressor |
CN104235069A (en) * | 2014-09-17 | 2014-12-24 | 芜湖欧宝机电有限公司 | Rust-proof low-noise shell body for freezer compressor and manufacturing method thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1165917A (en) * | 1996-05-20 | 1997-11-26 | 东芝株式会社 | Mfg. method for enclosed shell of sealing compressor as well as sealing compressor |
CN2407154Y (en) * | 2000-01-25 | 2000-11-22 | 中国科学院声学研究所 | Hooped low noise refrigeration compressor |
CN2542850Y (en) * | 2002-04-26 | 2003-04-02 | 天津大学 | Noise-reducing vibration-proof thin multi-layer casing |
US6575079B2 (en) * | 2001-02-23 | 2003-06-10 | Halla Climate Control Corporation | Swash plate compressor |
CN2733241Y (en) * | 2004-10-28 | 2005-10-12 | 浙江盾安人工环境设备股份有限公司 | Noise abatement apparatus |
CN2837553Y (en) * | 2005-11-25 | 2006-11-15 | 杨百昌 | Noise reducing casing of totally-enclosed refrigerating compressor |
-
2005
- 2005-11-25 CN CNB2005100198899A patent/CN100419262C/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1165917A (en) * | 1996-05-20 | 1997-11-26 | 东芝株式会社 | Mfg. method for enclosed shell of sealing compressor as well as sealing compressor |
CN2407154Y (en) * | 2000-01-25 | 2000-11-22 | 中国科学院声学研究所 | Hooped low noise refrigeration compressor |
US6575079B2 (en) * | 2001-02-23 | 2003-06-10 | Halla Climate Control Corporation | Swash plate compressor |
CN2542850Y (en) * | 2002-04-26 | 2003-04-02 | 天津大学 | Noise-reducing vibration-proof thin multi-layer casing |
CN2733241Y (en) * | 2004-10-28 | 2005-10-12 | 浙江盾安人工环境设备股份有限公司 | Noise abatement apparatus |
CN2837553Y (en) * | 2005-11-25 | 2006-11-15 | 杨百昌 | Noise reducing casing of totally-enclosed refrigerating compressor |
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CN1971044A (en) | 2007-05-30 |
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Assignee: Huangshi Donper Refrigeration Co. Ltd. Assignor: Yang Baichang Contract record no.: 2011420000055 Denomination of invention: Fully-enclosed refrigerating compressor noise-reduction case and method for manufacturing same Granted publication date: 20080917 License type: Exclusive License Open date: 20070530 Record date: 20110414 |