CN101070851B - Enclosed compressor for refrigeration agent for air conditioner or refrigerator - Google Patents
Enclosed compressor for refrigeration agent for air conditioner or refrigerator Download PDFInfo
- Publication number
- CN101070851B CN101070851B CN2006101281008A CN200610128100A CN101070851B CN 101070851 B CN101070851 B CN 101070851B CN 2006101281008 A CN2006101281008 A CN 2006101281008A CN 200610128100 A CN200610128100 A CN 200610128100A CN 101070851 B CN101070851 B CN 101070851B
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- refrigeration agent
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- filter screen
- compressor
- air conditioner
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Abstract
The invention aims at providing a filter screen which is assembled in a compressor to prevent the pressure loss increase of refrigerant agent caused by the passing area reduction of the filter screen, and prevent the reduction of the compressor performance. The inventive sealed compressor for the refrigerant agent of an air conditioner or a refrigeration machine includes a compressing mechanism, a bearing member (10) for bearing the compressing mechanism, a box (2) for receiving a motor (20) for driving the compressing mechanism, wherein a suction inlet for sucking the refrigerant agent gas which is guided by piping to the box from the refrigerant agent is arranged on the box, the suction inlet of the box is provided with the filter screen (19) which has larger outer diameter than that of the piping for sucking the refrigerant agent, and a fixed flange, the filter screen is fixed on the box for connecting a connection flange (24) which integrates with the piping for the suction of the refrigerant agent with the fixed flange.
Description
Technical field
The present invention relates to for example be used for the enclosed compressor for refrigeration agent of air conditioner or refrigerator.
Background technique
In refrigeration cycle, foreign matter such as the copper powder that can not be removed fully when existing some before use cleanings, iron powder.As the enclosed compressor for refrigeration agent of refrigeration cycle one constituting component, if sucked the refrigerant gas that contains these foreign matters, then can make the electric wire covering part damage of the motor of portion of drive compression mechanism, reduce insulating properties.In addition,, then can make the bearing track face and the rolling surface damage of supporting compression mechanical part, reduce bearing life significantly if these foreign matters are sneaked in the lubricant oil.Cause that in order to prevent that these foreign matters from sucking compressor reliability reduces, common way is that filter screen is set, and removes with this filter screen and sucks the foreign matter that contains in the refrigerant gas.In patent documentation 1, put down in writing the compressor that has filter screen.
Patent documentation 1: TOHKEMY 2000-320907 communique (Fig. 2)
Filter screen structure in the refrigeration cycle has filter screen is arranged on the such two big classes compressor outside and that be assembled in compressor inside.When filter screen is arranged on the compressor outside, owing to can set the area that passes through of filter screen to a certain extent arbitrarily, so, can suppress pressure loss increase because of the refrigerant gas that causes for a short time by area.On the other hand, when filter screen is assembled in compressor inside, there is the refrigerant cycle of making to oversimplify, make the advantages such as maintenance raising of compressor, but, owing to use with refrigeration agent suction pipe arrangement all-in-one-piece adpting flange and clamp filter screen, so, filter screen pass through area, can not set to such an extent that surpass refrigeration agent and suck external diameter with pipe arrangement.That is, when filter screen was assembled in compressor inside, because the area that passes through of filter screen dwindles, the pressure loss of refrigerant gas increased, the result, and circulating mass of refrigerant reduces, and the performance of compressor reduces.As an example of the structure of clamping filter screen with adpting flange, on the books in Fig. 2 of patent documentation 1.
Summary of the invention
The purpose of this invention is to provide a kind of high performance enclosed compressor for refrigeration agent,, also can enlarge the area that passes through of filter screen even filter screen is assembled in compressor inside.
To achieve these goals, the enclosed compressor for refrigeration agent that is used for air conditioner or refrigerator of the present invention's one example, have compression mechanical part, support the bearing part of this compression mechanical part, accommodate the case of the motor that drives above-mentioned compressor structure portion, on this case, have from refrigeration agent and suck the suction port that in case, imports refrigerant gas with pipe arrangement, have to suck at the suction oral area of above-mentioned case and compare the big filter screen of external diameter with the external diameter of pipe arrangement with above-mentioned refrigeration agent, and fastening flange, above-mentioned filter screen is fixed on the above-mentioned case by the said fixing flange, to suck the adpting flange that forms as one with pipe arrangement with above-mentioned refrigeration agent is connected in addition with the said fixing flange, in above-mentioned structure, compression mechanical part preferably is made of intermeshing at least one pair of male rotor and female rotor.
In addition, in above-mentioned structure, the most handy wire netting constitutes filter screen with the cylinder of fixing this wire netting, the outside of metal mesh arrangement at the refrigeration agent suction side of cylinder end face.
In addition, in above-mentioned structure, preferably fastening flange and filter screen form as one.
In addition, in above-mentioned structure, the most handy bolt connecting box and fastening flange.
In addition, in above-mentioned structure, the most handy welding engages case with fastening flange.
In addition, in above-mentioned structure, be preferably between case and the fastening flange, have sealed member.
According to the present invention, because and between refrigeration agent sucks with pipe arrangement all-in-one-piece adpting flange and filter screen, have the fastening flange that is used for fixing filter screen, so, can enlarge the area that passes through of filter screen, can obtain high performance enclosed compressor for refrigeration agent at an easy rate with simple structure.
Description of drawings
Fig. 1 is the figure of cross-section structure of the deuterostrophies compressor of expression one embodiment of the invention.
Fig. 2 is the figure of part cross-section structure of expression the present invention the 2nd embodiment's deuterostrophies compressor.
Fig. 3 is the figure of part cross-section structure of expression the present invention the 3rd embodiment's deuterostrophies compressor.
Fig. 4 is the figure of part cross-section structure of expression the present invention the 4th embodiment's deuterostrophies compressor.
Fig. 5 is the figure of part cross-section structure of expression the present invention the 5th embodiment's deuterostrophies compressor.
Embodiment
Below, with reference to the description of drawings embodiments of the invention.Fig. 1 is the figure of cross-section structure of the enclosed compressor for refrigeration agent of expression one embodiment of the invention.In the following explanation, as an example of the present invention, describe with hermetic screw compressor, but be not limited to screw compressor, also comprise the reciprocating type compressor that waits alternate manner with refrigeration agent.
Screw compressor has motor box 1, the main tank 2 that is connecting hermetically mutually and discharges case 3.In motor box 1, accommodating the drive motor 4 of portion of drive compression mechanism.In main tank 2, the suction port 6 that has formed thorax 5 cylindraceous and refrigerant gas has been imported cylindric thorax 5.Accommodating the male rotor 11 and the female rotor (not shown) of intermeshing in cylindric thorax 5, this male rotor 11 and female rotor are rotatably mounted by rolling bearing 7,8,9 and ball bearing 10.The axle of male rotor 11 directly is connected with drive motor 4.In addition, on main tank 2, form oil separator 12,, have the oil that accumulates lubricant oil 13 to accumulate portion 14 in the bottom that is communicated with oil separator 12.
Accommodate in the discharge case 3 of rolling bearing 9 and ball bearing 10, formed the drain passageway 15 of refrigerant gas, this drain passageway 15 is communicated with cylindric thorax 5 with the oil separator 12 of main tank 2 one formation, and at oil separator 12 openings.Discharge case 3 usefulness bolts etc. are fixed on the main tank 2.End discharging case 3 is installed with shield 17, and this shield 17 will be accommodated the bearing chamber 16 of rolling bearing 9 and ball bearing 10 and be closed.
At main tank 2 with discharge in the case 3, formed the oil supply path, the oil of main tank 2 is accumulated portion 14 be communicated with each bearing portion.Below, flowing of refrigerant gas and oil is described.
From being located at low temperature, the low pressure refrigerant gas of suction port 18 suctions on the motor box 1, after having been captured foreign matter by filter screen 19, by being located at gas passageway between drive motor 4 and the motor box 1 and the air clearance between stator 20 and the motor rotor 21, with drive motor 4 coolings.Cooled refrigerant gas from being formed on the suction port 6 on the main tank 2, is inhaled in the pressing chamber that mesh tooth face and main tank 2 by the positive and negative helical rotor form.Then, rotation along with the male rotor 11 that is being connected with drive motor 4, refrigerant gas is sealed in the pressing chamber that is formed by the mesh tooth face of positive and negative helical rotor and main tank 2, dwindling and be compressed gradually with pressing chamber, become the refrigerant gas of High Temperature High Pressure, by being formed at the drain passageway 15 of discharging in the case 3, be discharged to main tank 2 all-in-one-piece oil separators 12 in.During compression, act on the radial load in the compression counter-force on the positive and negative helical rotor, born by rolling bearing 7,8,9, axial load is born by ball bearing 10.Lubricated and the cooling oil of these bearings accumulates portion 14 from the oil that is located at the high-voltage section in the main tank 2, by the oily path that is communicated with each bearing portion, utilize the pressure reduction fuel feeding after, in compression refrigeration system gas is discharged to oil separator 12.The oil that contains in the compression refrigerant gas is separated by oil separator 12, and the oil that accumulates in main tank 2 bottoms accumulates portion 14.After oil separated, compression refrigerant gas was discharged from exhaust port 22.
Sucking with the integrally formed adpting flange 24 of pipe arrangement 23 with refrigeration agent, when directly being connected with the suction port 18 of motor box 1, filter screen 19 is to be connected flange 24 to sandwich the interior structure of motor box 1.Therefore, filter screen 19 pass through area, can not be set at refrigeration agent and suck with more than the external diameter of pipe arrangement 23.For this reason, between adpting flange 24 and filter screen 19, be provided for the fixedly fastening flange 25 of filter screen 19.Fastening flange 25 fixedly is to adopt bolt with motor box 1, between motor box 1 and fastening flange 25 and filter screen 19, with 26,27 sealings of O shape ring.The size of the filter screen assembly department by changing fastening flange 25 just can freely be set the area that passes through of filter screen 19.In the time of will be by enlarged areas, the pressure loss of the refrigerant gas in the time of reducing by filter screen 19 suppresses the minimizing of circulating mass of refrigerant, can obtain high-performance.
Fig. 2 represents the 2nd embodiment.In the present embodiment,, constitute filter screen 19 with the cylinder 33 of wire netting 34 and fixing metal net 34.Wire netting 34 is configured in the outside of the refrigeration agent suction side end face 35 of cylinder 33.Owing to the outside that wire netting 34 is configured in the refrigeration agent suction side end face 35 of cylinder 33, so, suck the foreign matter that contains in the refrigerant gas, be not easy to invade compressor inside from the wire netting 34 and the gap of cylinder 33.Therefore, can obtain the enclosed compressor for refrigeration agent of high reliability.
Fig. 3 represents the 3rd embodiment.In the present embodiment, fastening flange 25 and filter screen 19 are configured as one.Because fastening flange 25 and filter screen 19 are configured as one, so, very close to each other between fastening flange 25 and filter screen 19, eliminated the foreign matter that contains in the suction refrigerant gas is invaded compressor inside from the gap worry.Therefore, can obtain the enclosed compressor for refrigeration agent of high-performance, high reliability.
Fig. 4 represents the 4th embodiment.In the present embodiment, with motor box 1, engages, motor box 1 is engaged with fastening flange 25 owing to use to weld with the fixing fastening flange 25 of filter screen 19 with welding 28, so, the suction refrigerant gas of compressor inside can not drain to the compressor outside, can obtain high reliability.
Fig. 5 represents the 5th embodiment.In the present embodiment, motor box 1, fixedly between the fastening flange 25 and filter screen 19 of filter screen 19, with seal washer 29,30 sealings.When if sealed member adopts O shape ring, on motor box 1 and fastening flange 25, must processing O shape ring be installed by the groove of usefulness.And in the present embodiment, adopt seal washer 29,30, thus needn't processing groove, can obtain high-performance at low cost.
Claims (6)
1. the enclosed compressor for refrigeration agent that is used for air conditioner or refrigerator, have compression mechanical part, support this compression mechanical part bearing part, accommodate the case of the motor that drives above-mentioned compressor structure portion, on this case, have from refrigeration agent and suck the suction port that in case, imports refrigerant gas with pipe arrangement, it is characterized in that
Have to suck at the suction oral area of above-mentioned case and compare big filter screen of external diameter and fastening flange with the external diameter of pipe arrangement with above-mentioned refrigeration agent,
Above-mentioned filter screen is fixed on the above-mentioned case by the said fixing flange, will suck the adpting flange that forms as one with pipe arrangement with above-mentioned refrigeration agent and be connected with the said fixing flange.
2. the enclosed compressor for refrigeration agent that is used for air conditioner or refrigerator as claimed in claim 1 is characterized in that, above-mentioned compressor structure portion is made of intermeshing at least one pair of male rotor and female rotor.
3. the enclosed compressor for refrigeration agent that is used for air conditioner or refrigerator as claimed in claim 1, it is characterized in that, constitute above-mentioned filter screen with wire netting and the cylinder of fixing this wire netting, the outside of above-mentioned metal mesh arrangement at the refrigeration agent suction side of above-mentioned cylinder end face.
4. the enclosed compressor for refrigeration agent that is used for air conditioner or refrigerator as claimed in claim 1 is characterized in that, said fixing flange and above-mentioned filter screen form as one.
5. the enclosed compressor for refrigeration agent that is used for air conditioner or refrigerator as claimed in claim 1 is characterized in that, with welding above-mentioned case is engaged with the said fixing flange.
6. the enclosed compressor for refrigeration agent that is used for air conditioner or refrigerator as claimed in claim 1 is characterized in that, between above-mentioned case and said fixing flange, has sealed member.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006130968 | 2006-05-10 | ||
| JP2006-130968 | 2006-05-10 | ||
| JP2006130968A JP5033351B2 (en) | 2006-05-10 | 2006-05-10 | Hermetic compressor for refrigerant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101070851A CN101070851A (en) | 2007-11-14 |
| CN101070851B true CN101070851B (en) | 2011-07-27 |
Family
ID=38837465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101281008A Expired - Fee Related CN101070851B (en) | 2006-05-10 | 2006-09-04 | Enclosed compressor for refrigeration agent for air conditioner or refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5033351B2 (en) |
| CN (1) | CN101070851B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5197141B2 (en) | 2008-05-12 | 2013-05-15 | 株式会社神戸製鋼所 | Two-stage screw compressor and refrigeration system |
| JP5527396B1 (en) * | 2012-12-17 | 2014-06-18 | ダイキン工業株式会社 | Screw compressor |
| WO2021019639A1 (en) * | 2019-07-29 | 2021-02-04 | 三菱電機株式会社 | Compressor and refrigeration cycle device |
| JP2022046318A (en) * | 2020-09-10 | 2022-03-23 | サンデン・アドバンストテクノロジー株式会社 | Horizontal electric compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2271686Y (en) * | 1996-05-31 | 1997-12-31 | 诚茂科技股份有限公司 | Filtering bottle for refrigerant |
| CN1289896A (en) * | 1999-09-27 | 2001-04-04 | 开利公司 | Improvement of partial load performance of speed variable helical-lobe compressor |
| CN1434215A (en) * | 2002-01-25 | 2003-08-06 | 精工电子有限公司 | Gas compressor |
| CN2682226Y (en) * | 2004-02-12 | 2005-03-02 | 复盛易利达(上海)压缩机有限公司 | Air intake filter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5237288Y2 (en) * | 1973-07-02 | 1977-08-25 | ||
| JPS57181325U (en) * | 1981-05-08 | 1982-11-17 | ||
| JPS5823612U (en) * | 1981-08-05 | 1983-02-15 | 三菱電機株式会社 | Compressor strainer device |
| JPS6019789U (en) * | 1983-07-19 | 1985-02-09 | 三菱電機株式会社 | Refrigerant compressor piping connection device |
| JP2003322093A (en) * | 2002-04-26 | 2003-11-14 | Mitsubishi Heavy Ind Ltd | Screw type fluid machine and refrigerating device provided with the same |
| JP3796210B2 (en) * | 2002-11-01 | 2006-07-12 | 株式会社神戸製鋼所 | Screw compressor |
-
2006
- 2006-05-10 JP JP2006130968A patent/JP5033351B2/en not_active Expired - Fee Related
- 2006-09-04 CN CN2006101281008A patent/CN101070851B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2271686Y (en) * | 1996-05-31 | 1997-12-31 | 诚茂科技股份有限公司 | Filtering bottle for refrigerant |
| CN1289896A (en) * | 1999-09-27 | 2001-04-04 | 开利公司 | Improvement of partial load performance of speed variable helical-lobe compressor |
| CN1434215A (en) * | 2002-01-25 | 2003-08-06 | 精工电子有限公司 | Gas compressor |
| CN2682226Y (en) * | 2004-02-12 | 2005-03-02 | 复盛易利达(上海)压缩机有限公司 | Air intake filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5033351B2 (en) | 2012-09-26 |
| JP2007303319A (en) | 2007-11-22 |
| CN101070851A (en) | 2007-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160818 Address after: Hongkong, China Patentee after: Johnson Controls Hitachi air conditioning technology (Hong Kong) Co.,Ltd. Address before: Tokyo, Japan Patentee before: Hitachi Appliances, Inc. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180705 Address after: Tokyo, Japan Patentee after: HITACHI-JOHNSON CONTROLS AIR CONDITIONING, Inc. Address before: Hongkong, China Patentee before: Johnson Controls Hitachi air conditioning technology (Hong Kong) Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 |