EP1653160A1 - Outdoor unit for air conditioner - Google Patents
Outdoor unit for air conditioner Download PDFInfo
- Publication number
- EP1653160A1 EP1653160A1 EP04746826A EP04746826A EP1653160A1 EP 1653160 A1 EP1653160 A1 EP 1653160A1 EP 04746826 A EP04746826 A EP 04746826A EP 04746826 A EP04746826 A EP 04746826A EP 1653160 A1 EP1653160 A1 EP 1653160A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressor
- discharge pipe
- outdoor unit
- muffler
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/30—Refrigerant piping for use inside the separate outdoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/08—Compressors specially adapted for separate outdoor units
- F24F1/12—Vibration or noise prevention thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/13—Vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/006—General constructional features for mounting refrigerating machinery components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2500/00—Problems to be solved
- F25D2500/02—Geometry problems
Definitions
- the present invention relates to reduction of vibrating stress of a discharge pipe during operation of a compressor in an outdoor unit for an air-conditioner.
- Fig. 2 shows a piping arrangement around a vertical type cylindrical compressor 51 in a prior art outdoor unit for an air-conditioner described in, for example, Japanese Patent Laid-Open Publication No. 9-196514 (1997).
- a suction pipe 52 and a discharge pipe 53 are connected between the compressor 51 and a heat exchanger 54, while a muffler 55 having a diameter and a mass larger than those of the discharge pipe 53 is mounted in the course of the discharge pipe 53 at a side of the compressor 51 so as to reduce noises produced by impactive flow of refrigerant gas from the compressor 51.
- the present invention has for its object to provide, with a view to eliminating the above mentioned drawbacks of prior art, an outdoor unit for an air-conditioner, in which vibrating stress of a discharge pipe during operation of a compressor can be reduced by an inexpensive arrangement and an installation area of the outdoor unit can be reduced.
- an outdoor unit for an air-conditioner includes a compressor, a heat exchanger connected with the compressor by a suction pipe and a discharge pipe and a muffler mounted on the discharge pipe so as to be disposed above the compressor and inside an outer contour of a casing of the compressor, with the outer contour being defined when the compressor is observed from above.
- FIG. 1 shows a piping arrangement around a vertical type compressor 1 in which an axis of a cylindrical casing 10 extends vertically.
- This outdoor unit further includes a heat exchanger 4 connected with the compressor 1 by a suction pipe 2 and a discharge pipe 3 and a muffler 5 for reducing noises produced by impactive flow of refrigerant gas from the compressor 1, which has a diameter larger than that of the discharge pipe 3.
- the suction pipe 2 is connected with a lower portion of a cylindrical side face 10a of the casing 10 of the compressor 1.
- the discharge pipe 3 is connected with a central portion of a circular upper face 10b of the casing 10 of the compressor 1 and rises vertically upwardly, as a central vertical portion 3a, from the central portion of the upper face 10b through a predetermined distance D.
- the muffler 5 of this outdoor unit for the air-conditioner is mounted on the central vertical portion 3a of the discharge pipe 3 rising vertically upwardly from the central portion of the upper face 10b of the casing 10 of the compressor 1 so as to be disposed above the compressor 1 and inside a circular outer contour C of the casing 10 of the compressor 1, which outer contour C is defined when the compressor 1 is observed from above.
- the muffler 5 is mounted on the central vertical portion 3a of the discharge pipe 3 rising vertically upwardly from the central portion of the upper face 10b of the casing 10 of the compressor 1, the muffler 5 is disposed close to the axis of the compressor 1 acting as a vibration source.
- moment of inertia of the muffler 5, which is produced by vibrations of the compressor 1 is reduced, so that it is possible to restrain increase of vibrating stress of the discharge pipe 3 caused by mounting the muffler 5 on the discharge pipe 3.
- the muffler 5 is mounted on the central vertical portion 3a of the discharge pipe 3 rising vertically upwardly from the central portion of the circular upper face 10b of the casing 10 of the compressor 1 so as to be disposed above the compressor 1 and inside the circular outer contour C of the casing 10 of the compressor 1, which outer contour C is defined when the compressor 1 is observed from above, the muffler 5 is disposed close to the axis of the compressor 1 acting as the vibration source. Hence, moment of inertia of the muffler 5, which is produced by vibrations of the compressor 1, is reduced, so that it is possible to restrain increase of vibrating stress of the discharge pipe 3 caused by mounting the muffler 5 on the discharge pipe 3.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
- Compressor (AREA)
Abstract
An outdoor unit for an air-conditioner includes a compressor (1), a heat exchanger (4) connected with the compressor (1) by a suction pipe (2) and a discharge pipe (3) and a muffler (5) mounted on the discharge pipe (3) so as to be disposed above the compressor (1) and inside an outer contour (C) of a casing (10) of the compressor (1), with the outer contour (C) being defined when the compressor (1) is observed from above.
Description
- The present invention relates to reduction of vibrating stress of a discharge pipe during operation of a compressor in an outdoor unit for an air-conditioner.
- In conventional outdoor units for heat exchangers, it has been a common practice that a muffler for reducing noises from a compressor is mounted on a discharge pipe connecting the compressor and a heat exchanger so as to be disposed at a side of the compressor.
- Fig. 2 shows a piping arrangement around a vertical type
cylindrical compressor 51 in a prior art outdoor unit for an air-conditioner described in, for example, Japanese Patent Laid-Open Publication No. 9-196514 (1997). In Fig. 2, asuction pipe 52 and adischarge pipe 53 are connected between thecompressor 51 and aheat exchanger 54, while amuffler 55 having a diameter and a mass larger than those of thedischarge pipe 53 is mounted in the course of thedischarge pipe 53 at a side of thecompressor 51 so as to reduce noises produced by impactive flow of refrigerant gas from thecompressor 51. - In the prior art arrangement of Fig. 2, since vibrations of the
compressor 51 generated by its operation are transmitted to thedischarge pipe 53, thedischarge pipe 53 is also vibrated. However, since the large-mass muffler 55 mounted on thedischarge pipe 53 is disposed away from an axis of thecompressor 51 acting as a vibration source, moment of inertia of thedischarge pipe 53 tends to increase its vibrating stress. In order to prevent thedischarge pipe 53 from being damaged by this vibrating stress, a countermeasure for damping vibrations of thedischarge pipe 53 should be taken in which themuffler 55 and thesuction pipe 52 are coupled with each other by acoupling member 60 as shown in Fig. 2. Meanwhile, as an alternative countermeasure, a yield strength of thedischarge pipe 53 against the vibrating stress should be raised by increasing a wall thickness of thedischarge pipe 53. As a result, in the prior art outdoor unit for theheat exchanger 54, such problems arise that use of the vibrationdamping coupling member 60 or increase of the wall thickness of thedischarge pipe 53 raises its production cost and enlarges its installation area. - The present invention has for its object to provide, with a view to eliminating the above mentioned drawbacks of prior art, an outdoor unit for an air-conditioner, in which vibrating stress of a discharge pipe during operation of a compressor can be reduced by an inexpensive arrangement and an installation area of the outdoor unit can be reduced.
- In order to accomplish this object, an outdoor unit for an air-conditioner according to the present invention includes a compressor, a heat exchanger connected with the compressor by a suction pipe and a discharge pipe and a muffler mounted on the discharge pipe so as to be disposed above the compressor and inside an outer contour of a casing of the compressor, with the outer contour being defined when the compressor is observed from above.
-
- Fig. 1 is a perspective view showing a piping arrangement around a compressor of an outdoor unit for an air-conditioner according to one embodiment of the present invention.
- Fig. 2 is a perspective view showing a piping arrangement around a compressor of a prior art outdoor unit for an air-conditioner.
- Hereinafter, an outdoor unit for an air-conditioner according to one embodiment of the present invention is described with reference to Fig. 1. Fig. 1 shows a piping arrangement around a
vertical type compressor 1 in which an axis of acylindrical casing 10 extends vertically. This outdoor unit further includes aheat exchanger 4 connected with thecompressor 1 by asuction pipe 2 and adischarge pipe 3 and amuffler 5 for reducing noises produced by impactive flow of refrigerant gas from thecompressor 1, which has a diameter larger than that of thedischarge pipe 3. Thesuction pipe 2 is connected with a lower portion of acylindrical side face 10a of thecasing 10 of thecompressor 1. Meanwhile, thedischarge pipe 3 is connected with a central portion of a circularupper face 10b of thecasing 10 of thecompressor 1 and rises vertically upwardly, as a centralvertical portion 3a, from the central portion of theupper face 10b through a predetermined distance D. - In contrast with a prior art arrangement of Fig. 2 in which a muffler is mounted in the course of a discharge pipe at a side of a compressor, the
muffler 5 of this outdoor unit for the air-conditioner is mounted on the centralvertical portion 3a of thedischarge pipe 3 rising vertically upwardly from the central portion of theupper face 10b of thecasing 10 of thecompressor 1 so as to be disposed above thecompressor 1 and inside a circular outer contour C of thecasing 10 of thecompressor 1, which outer contour C is defined when thecompressor 1 is observed from above. - In the above described arrangement of the outdoor unit for the air-conditioner, since the
muffler 5 is mounted on the centralvertical portion 3a of thedischarge pipe 3 rising vertically upwardly from the central portion of theupper face 10b of thecasing 10 of thecompressor 1, themuffler 5 is disposed close to the axis of thecompressor 1 acting as a vibration source. Thus, even if themuffler 5 has a large mass, moment of inertia of themuffler 5, which is produced by vibrations of thecompressor 1, is reduced, so that it is possible to restrain increase of vibrating stress of thedischarge pipe 3 caused by mounting themuffler 5 on thedischarge pipe 3. - As is apparent from the forgoing description of the outdoor unit for the air-conditioner in the present invention, since the
muffler 5 is mounted on the centralvertical portion 3a of thedischarge pipe 3 rising vertically upwardly from the central portion of the circularupper face 10b of thecasing 10 of thecompressor 1 so as to be disposed above thecompressor 1 and inside the circular outer contour C of thecasing 10 of thecompressor 1, which outer contour C is defined when thecompressor 1 is observed from above, themuffler 5 is disposed close to the axis of thecompressor 1 acting as the vibration source. Hence, moment of inertia of themuffler 5, which is produced by vibrations of thecompressor 1, is reduced, so that it is possible to restrain increase of vibrating stress of thedischarge pipe 3 caused by mounting themuffler 5 on thedischarge pipe 3. - Consequently, in the outdoor unit for the air-conditioner in the present invention, since the conventional need for using a vibration damping coupling member or increasing a wall thickness of the discharge pipe in order to reduce vibrating stress of the discharge pipe during operation of the compressor is eliminated, such marked effects are gained that the vibrating stress of the discharge pipe during operation of the compressor can be reduced at low cost and an installation area of the outdoor unit can be reduced.
Claims (2)
- An outdoor unit for an air-conditioner comprising:a compressor (1);a heat exchanger (4) which is connected with the compressor (1) by a suction pipe (2) and a discharge pipe (3); anda muffler (5) which is mounted on the discharge pipe (3) so as to be disposed above the compressor (1) and inside an outer contour (C) of a casing (10) of the compressor (1), with the outer contour (C) being defined when the compressor (1) is observed from above.
- The outer unit as claimed in Claim 1, wherein the compressor (1) is a vertical type compressor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003189349A JP2005024155A (en) | 2003-07-01 | 2003-07-01 | Outdoor unit of air conditioner |
PCT/JP2004/009357 WO2005003639A1 (en) | 2003-07-01 | 2004-06-25 | Outdoor unit for air conditioner |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1653160A1 true EP1653160A1 (en) | 2006-05-03 |
Family
ID=33562285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04746826A Withdrawn EP1653160A1 (en) | 2003-07-01 | 2004-06-25 | Outdoor unit for air conditioner |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1653160A1 (en) |
JP (1) | JP2005024155A (en) |
CN (1) | CN1806150A (en) |
WO (1) | WO2005003639A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009111024A3 (en) * | 2008-03-06 | 2009-10-29 | Carrier Corporation | Split discharge line with integrated muffler for a compressor |
US20120117999A1 (en) * | 2009-08-25 | 2012-05-17 | Su Nam Chae | Refrigerator |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103940002B (en) * | 2014-03-26 | 2016-11-09 | 美的集团股份有限公司 | Buffer unit and there is its air-conditioner outdoor unit |
JP2023160250A (en) * | 2022-04-22 | 2023-11-02 | サンデン株式会社 | fluid compressor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001295764A (en) * | 2000-04-14 | 2001-10-26 | Daikin Ind Ltd | Compressor for refrigerator |
-
2003
- 2003-07-01 JP JP2003189349A patent/JP2005024155A/en active Pending
-
2004
- 2004-06-25 CN CN 200480016723 patent/CN1806150A/en active Pending
- 2004-06-25 WO PCT/JP2004/009357 patent/WO2005003639A1/en not_active Application Discontinuation
- 2004-06-25 EP EP04746826A patent/EP1653160A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2005003639A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009111024A3 (en) * | 2008-03-06 | 2009-10-29 | Carrier Corporation | Split discharge line with integrated muffler for a compressor |
US20120117999A1 (en) * | 2009-08-25 | 2012-05-17 | Su Nam Chae | Refrigerator |
Also Published As
Publication number | Publication date |
---|---|
WO2005003639A1 (en) | 2005-01-13 |
CN1806150A (en) | 2006-07-19 |
JP2005024155A (en) | 2005-01-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20020134617A1 (en) | Suction muffler | |
CN208845368U (en) | Pulsation and vibration control apparatus | |
EP1653160A1 (en) | Outdoor unit for air conditioner | |
WO2005089151A2 (en) | Pipe support for compressor subassembly | |
JP3328952B2 (en) | Hermetic electric compressor | |
KR100360235B1 (en) | Structure for reduction of vibration and noise in air-conditioner | |
JPH071105B2 (en) | Anti-vibration device for air conditioner | |
EP1913283B1 (en) | Absorptive muffler suspension | |
US7000421B2 (en) | Piping structure of air conditioner | |
US20050264004A1 (en) | Damping device for pipe | |
WO2021064984A1 (en) | Refrigeration cycle device | |
US7281907B2 (en) | Offset mounting foot | |
CN211119711U (en) | Heat exchanger anti-vibration structure and have its air condensing units | |
KR100403656B1 (en) | Compressor supporting structure for an outdoor unit of air conditioner | |
WO2024041603A1 (en) | Liquid storage device and air-conditioning system thereof | |
CN210980125U (en) | Outdoor unit of air conditioner | |
JPH11304294A (en) | Air conditioner | |
JP6567062B2 (en) | Air conditioner outdoor unit | |
JP6289231B2 (en) | Rotary compressor | |
CN213873279U (en) | Air conditioning equipment | |
JP7319510B2 (en) | Piping structure and air conditioner | |
JPS605335Y2 (en) | High pressure pressure control valve mounting device | |
WO2011052146A1 (en) | Hermetic compressor | |
CN115540082A (en) | Vibration reduction foot pad, air conditioner and debugging and installing method of air conditioner | |
WO2021124562A1 (en) | Outdoor unit of refrigeration cycle device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20060201 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): ES GR IT |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): ES GR IT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20080409 |