WO2003104656A1 - 圧縮機の保護方法および保護構造 - Google Patents
圧縮機の保護方法および保護構造 Download PDFInfo
- Publication number
- WO2003104656A1 WO2003104656A1 PCT/JP2003/006110 JP0306110W WO03104656A1 WO 2003104656 A1 WO2003104656 A1 WO 2003104656A1 JP 0306110 W JP0306110 W JP 0306110W WO 03104656 A1 WO03104656 A1 WO 03104656A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compressor
- core
- temperature
- electromagnetic clutch
- heater
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
Definitions
- the present invention relates to a method and structure for protecting a compressor, and more particularly to a method and structure for protecting a compressor having an electromagnetic clutch, which is suitable for use in an air conditioner or the like.
- the sealing performance in the compressor may be reduced. If the compressor is restarted with a large amount of liquid refrigerant present in the compressor, the liquid refrigerant is compressed (so-called liquid compression state), and excessive pressure may be applied to each component in the compressor. There is.
- a compressor is provided with a means (for example, a thermistor) for detecting the temperature of the compressor, a heater (for example, a band heater), and a heater energizing control means for energizing the heater. Measures have been taken to prevent the temperature from dropping below the prescribed temperature.
- a means for example, a thermistor
- a heater for example, a band heater
- a heater energizing control means for energizing the heater. Measures have been taken to prevent the temperature from dropping below the prescribed temperature.
- Japanese Patent Application Laid-Open Nos. Hei 5-3-1128 and Hei 9-119389 disclose scroll relief: a relief passage having a relief valve in a compression chamber of a compressor. A proposal has been made to prevent excessive pressure rise in the compression chamber.
- an object of the present invention is to prevent a decrease in the reliability of a compressor while preventing a decrease in productivity, an increase in cost, and a decrease in performance, and also to prevent a compressor from being appropriately compressed by preventing liquid compression.
- An object of the present invention is to provide a compressor protection method and a protection structure that can be protected and easily applied to existing compressors.
- a method for protecting a compressor according to the present invention is characterized in that, when a compressor having an electromagnetic clutch is stopped, when the temperature of the compressor falls below a predetermined temperature,
- the method is characterized in that the core functions as a heater by energizing the core, and the temperature of the compressor is raised to make the temperature of the compressor equal to or higher than the predetermined temperature.
- the compressor protection structure it is desirable that heat from the core of the electromagnetic clutch functioning as a heater is efficiently transmitted to the compressor main body, and a heat transfer member is disposed between the core and the compressor main body.
- a heat transfer member is disposed between the core and the compressor main body.
- the actual contact area may be small because the joint surface between the two is not formed on a completely flat surface.
- a heat transfer member is arranged at the contact portion between the two, the actual contact area can be increased, and the heat transfer efficiency from the core functioning as a heater to the compressor body can be improved.
- a metal having high heat transfer efficiency can be used.
- a resin having a relatively high heat transfer efficiency for example, silicone rubber
- FIG. 1 is a longitudinal sectional view of a scroll compressor to which a protection structure according to one embodiment of the present invention is applied.
- FIG. 2 is an enlarged cross-sectional view showing a contact portion between a core of an electromagnetic clutch and a housing of the compressor in the compressor of FIG.
- the compressor 1 is provided with a thermistor 34 as a means for detecting the temperature inside the compressor.
- the thermistor 34 is electrically connected to the core conduction control means 35.
- a predetermined temperature for example, 110 ° C. or lower
- the core 31 is energized by the core energization control means 35.
- the core conduction control means 35 and the core 31 are connected by a lead wire 36.
- the refrigerant sucked into the compressor 1 from the suction port (not shown) It is taken into the fluid pocket formed between the spirals from the air gap on the outer peripheral side of the spiral. With the orbital movement of the orbiting scroll 10, the formed fluid pocket is moved toward the center while reducing its capacity, and the refrigerant is compressed accordingly.
- the compressed refrigerant is discharged from the discharge hole 23 into the discharge chamber 22 and is sent from the discharge port (not shown) to the outside of the compressor.
- the compressor temperature (in this embodiment, the internal temperature of the compressor 1) is set at a predetermined temperature (for example, 110 ° C.).
- the core energization control means 35 energizes the core 31 of the electromagnetic clutch 26 to heat the core 31. This heat is transferred to the housing 2 via the plate 33 and the heat transfer member 37, and the housing 2 is heated. As the housing 2 is heated, the temperature of the compressor 1, especially its internal temperature, rises. As a result, accumulation of the liquid refrigerant is prevented, and the amount of the liquid refrigerant inside the compressor is reduced, so that liquid compression is prevented and the internal members of the compressor 1 are appropriately protected.
- the electromagnetic clutch 26, particularly its core 31 is made to function as a heater, so that an increase in the number of parts can be suppressed, and a decrease in productivity and an increase in cost can be prevented.
- the thermistor 34 for detecting the temperature of the compressor 1 the one used for a band heater or the like of a conventional compressor can be diverted as it is.
- the heater energization control means of the conventional compressor can be diverted as the core energization control means 35 as it is. Therefore, the compressor protection mechanism according to the present invention can be easily applied to existing compressors only by making simple improvements.
- the heat transfer member 37 is disposed between the plate 33 of the core 31 and the housing 2, the substantial contact area between the two can be increased. Therefore, the heat transfer efficiency from the core 3 1 side to the housing 2 side can be improved, and the temperature rise efficiency of the compressor 1 can be improved. Can be improved.
- the internal temperature of the compressor 1 is detected by the thermistor 34, and the core 31 is energized by the core energization control means 35 according to the detected temperature.
- energization control may be performed based on a signal from a sensor that detects the outside air temperature and the flow of the refrigerant. It is also possible to control energization by a combination of a temperature switch and a timer.
- the method and structure for protecting a compressor according to the present invention it is possible to prevent an increase in liquid refrigerant accumulated in the compressor while preventing an increase in the number of parts, a decrease in productivity, and an increase in cost.
- the compressor can be prevented from being compressed when the compressor is restarted, and the compressor can be effectively protected.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Air-Conditioning For Vehicles (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2004-7018654A KR20050000427A (ko) | 2002-06-07 | 2003-05-16 | 압축기의 보호방법 및 보호구조 |
AU2003234807A AU2003234807A1 (en) | 2002-06-07 | 2003-05-16 | Compressor protective method and structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002167169A JP4181340B2 (ja) | 2002-06-07 | 2002-06-07 | 圧縮機の保護方法および保護構造 |
JP2002-167169 | 2002-06-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003104656A1 true WO2003104656A1 (ja) | 2003-12-18 |
Family
ID=29727655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/006110 WO2003104656A1 (ja) | 2002-06-07 | 2003-05-16 | 圧縮機の保護方法および保護構造 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP4181340B2 (ja) |
KR (1) | KR20050000427A (ja) |
CN (1) | CN1659381A (ja) |
AU (1) | AU2003234807A1 (ja) |
WO (1) | WO2003104656A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4548189B2 (ja) * | 2005-04-11 | 2010-09-22 | アイシン精機株式会社 | 開放型コンプレッサにおける温度制御方法及び装置 |
JP2007231880A (ja) * | 2006-03-02 | 2007-09-13 | Yanmar Co Ltd | スクロール式圧縮機 |
KR101241366B1 (ko) * | 2011-06-27 | 2013-03-11 | 경원기계공업(주) | 스크롤공기압축기의 냉각장치 및 냉각제어방법 |
CN103671107A (zh) * | 2013-12-25 | 2014-03-26 | 江苏晨宇车业有限公司 | 新型汽车空调用涡旋压缩机及其制造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5822310U (ja) * | 1981-08-07 | 1983-02-12 | トヨタ自動車株式会社 | 車両用空調装置 |
JPS6132581U (ja) * | 1984-07-30 | 1986-02-27 | 株式会社アツギユニシア | 温度スイツチの取付構造 |
JPS62159790A (ja) * | 1985-12-30 | 1987-07-15 | Yashima Denki Kk | ポンプ制御装置 |
JPS6342886U (ja) * | 1986-09-08 | 1988-03-22 | ||
JPS63162983A (ja) * | 1986-12-24 | 1988-07-06 | Shibaura Eng Works Co Ltd | ポンプ装置 |
-
2002
- 2002-06-07 JP JP2002167169A patent/JP4181340B2/ja not_active Expired - Fee Related
-
2003
- 2003-05-16 KR KR10-2004-7018654A patent/KR20050000427A/ko not_active Application Discontinuation
- 2003-05-16 AU AU2003234807A patent/AU2003234807A1/en not_active Abandoned
- 2003-05-16 WO PCT/JP2003/006110 patent/WO2003104656A1/ja active Application Filing
- 2003-05-16 CN CN03813117XA patent/CN1659381A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5822310U (ja) * | 1981-08-07 | 1983-02-12 | トヨタ自動車株式会社 | 車両用空調装置 |
JPS6132581U (ja) * | 1984-07-30 | 1986-02-27 | 株式会社アツギユニシア | 温度スイツチの取付構造 |
JPS62159790A (ja) * | 1985-12-30 | 1987-07-15 | Yashima Denki Kk | ポンプ制御装置 |
JPS6342886U (ja) * | 1986-09-08 | 1988-03-22 | ||
JPS63162983A (ja) * | 1986-12-24 | 1988-07-06 | Shibaura Eng Works Co Ltd | ポンプ装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20050000427A (ko) | 2005-01-03 |
AU2003234807A1 (en) | 2003-12-22 |
JP4181340B2 (ja) | 2008-11-12 |
JP2004011547A (ja) | 2004-01-15 |
CN1659381A (zh) | 2005-08-24 |
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