WO2004031666A1 - 冷蔵庫 - Google Patents
冷蔵庫 Download PDFInfo
- Publication number
- WO2004031666A1 WO2004031666A1 PCT/JP2003/012374 JP0312374W WO2004031666A1 WO 2004031666 A1 WO2004031666 A1 WO 2004031666A1 JP 0312374 W JP0312374 W JP 0312374W WO 2004031666 A1 WO2004031666 A1 WO 2004031666A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compressor
- machine room
- refrigerator
- refrigerant
- refrigeration cycle
- 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.)
- Ceased
Links
Classifications
-
- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- 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
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/12—Inflammable refrigerants
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/24—Protection against refrigerant explosions
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/32—Removal, transportation or shipping of refrigerating devices from one location to another
Definitions
- the present invention relates to a refrigerator, and particularly to a piping configuration of a machine room in a refrigeration cycle using a hydrocarbon-based refrigerant.
- HC refrigerants hydrocarbon-based refrigerants
- R600a isobutane
- HC refrigerant for example, isobutane
- isobutane is used in the refrigerating machine oil of the compressor shown in Figure 6.
- the solubility is high, and it has the property of being extremely high especially in the low temperature range.
- HC refrigerant is a flammable refrigerant, if a refrigerant leaks, it may be ignited by sparks or the like, leading to fire.
- a temperature sensor or a pressure sensor is placed at the inlet and outlet of the air conditioner, and the presence or absence of refrigerant leakage is determined by comparing the temperature difference or the pressure difference between the two and a value stored in advance (for example, see Patent Document 1)
- a refrigerant leak detection device is provided around the cooler, and in the event of a refrigerant leak, the leaked refrigerant is forcibly discharged to the outside together with air through a communication hole that also serves as a drain for defrost water (Patent See Reference 2.)).
- FIG. 7 which is a conventional machine room configuration
- a suction pipe (75) led out of a cooler (not shown) into the machine room has its end connected to a compressor (69).
- the suction pipe (75) is derived. If the left side in the figure is upward, there is no refrigeration oil flowing out of the compressor, but if it is lying down with the outlet side down, the refrigeration oil in the compressor (69) will have gravity. As a result, the water flows downward and flows through the suction pipe (75) into the pipes in the cabinet body (61) such as a cooler.
- Refrigerators before being recycled are often stored outdoors, especially in winter, when the temperature of the cabinet decreases, and as described above, the amount of HC that can be dissolved in the refrigerating machine oil at low temperatures becomes extremely large.
- a large amount of refrigerant flows into the cabinet body together with the refrigerating machine oil.
- refrigeration oil flows out of the various pipes of the crushed refrigeration cycle, and a large amount of HC refrigerant, which is a flammable refrigerant, flows out of the refrigeration oil. There was a problem that the risk of ignition increased.
- the present invention has been made in view of the above points, and in a refrigerator using flammable HC refrigerant, even if the refrigerator is stored or transported in a lying state for recycling, the refrigeration inside the compressor is performed. It is intended to provide a refrigerator having a configuration in which machine oil does not flow into the cabinet and eliminating the risk of ignition of HC refrigerant in the refrigerator oil.
- a refrigerator according to claim 1 of the present invention is formed at a lower part of a heat insulating box main body, and a refrigeration cycle including a compressor using a combustible refrigerant, a condenser, a throttle device, and a cooler, A machine room in which a compressor is installed and piping connected to the compressor is drawn out of the refrigeration cycle part in the main body, and a machine room is provided at the outlet from the inside to the machine room and on the compressor surface. Between the formed connection A part of the piping connecting the compressors extends in such a way as to fit in the width direction of the compressor in the upright state, and is provided with an extension extending forward from the back of the compressor. It is assumed that.
- the invention according to claim 2 provides a refrigeration cycle including a compressor using a flammable refrigerant, a condenser, a throttling device, and a cooler, and a lower part of the heat insulation box main body.
- a machine room in which a pipe drawn from the refrigeration cycle component and connected to the compressor is disposed, and a portion connected to the machine room and a connection portion formed on a compressor surface on the side of the outlet portion are provided.
- a part of the piping that connects the pipes extends so as to overlap in the width direction of the compressor, and a trap is provided.At the end, a trap is formed that extends forward from the back of the compressor.
- the invention according to claim 3 is characterized in that a compressor using a combustible refrigerant, a refrigeration cycle including a condenser, a throttling device and a cooler, and a compressor formed at a lower portion of the heat insulation box main body. And place it inside the main unit.
- a trap that extends forward from the back of the compressor is formed in a part of the piping that connects between the compressor and the trap. With this configuration, the trapping of the refrigerating machine oil from the compressor to the cabinet side is simple. Can be prevented.
- the invention according to claim 4 is characterized in that at least a part of the connecting pipe passes through a substantially central portion of the compressor width, and has a simpler and standardized pipe configuration. Refrigeration oil from compressor to cabinet side Inflow can be prevented.
- the invention according to claim 5 provides a refrigeration cycle including a compressor, a condenser, a throttle device, and a cooler using a combustible refrigerant, and a refrigeration cycle formed at a lower portion of the heat insulation box main body.
- a machine room in which piping derived from the refrigeration cycle parts and connected to the compressor is arranged, and a ratio II of a check valve provided in a suction pipe connected to the compressor is made heavier than that of the refrigerator oil.
- FIG. 1 is a perspective view of a refrigerator machine room showing one embodiment of the present invention.
- FIG. 2 is a sectional view showing a schematic configuration of the compressor.
- FIG. 3 is a perspective view of the same portion as FIG. 1 showing another embodiment of the present invention.
- FIG. 4 is a perspective view of a machine room showing another embodiment of the present invention.
- FIG. 5 is an explanatory diagram showing a crushing and sorting configuration at the time of recycling a refrigerator.
- FIG. 6 is a graph showing the change in the amount of H 2 C refrigerant dissolved into the refrigerating machine oil.
- FIG. 7 is a perspective view of a machine room of the same part as FIG. 1 showing a conventional configuration.
- FIG. 1 is a perspective view showing a state in which a machine room of a refrigerator is viewed from the rear.
- the machine room (2) is provided at the rear lower part of the cabinet body (1) consisting of an insulated box, and the inclined bottom plate (4) and the left and right side plates (5) are located below the outer box rear plate (3). (6 ) And a comp base (7) that forms the bottom surface.
- a compressor (9) is installed on a comp table (7) forming the machine room (2) via a cushion body (8).
- the compressor (9) forms a part of a refrigeration cycle, discharges refrigerant from a discharge pipe (10), and is disposed on the back of the outer case rear plate (3) and the side plates (5) and (6), and on the bottom surface of the main body.
- a condenser (11) consisting of a heat-radiating pipe and a throttle device (12) into a cooler (not shown) arranged in the cabinet to perform the cooling function, and there is also a rotary type.
- reciprocating types which are mainly low-pressure cases, are now widely used.
- the evaporative refrigerant vaporized by cooling in the cooler is returned to the compressor (9).
- the suction pipe (15) is guided from the lower end of the rear panel (3) of the outer box to the machine room (2). It is directly connected to the suction section (9a) formed on the case surface of the compressor (9) on the outlet side of (15).
- the suction pipe (15) is suspended from the outlet (15a) to the machine room (2), and then extended so as to overlap almost the center in the width direction of the compressor (9).
- a trap portion (15b) is provided, and an end of the trap portion (15b) faces forward from the rear surface of the compressor in a space between the outlet portion (15a) and the compressor (2).
- This also forms a second trap (15c) that extends to almost the center of the depth dimension of the compressor and makes a U-turn, and the tip of the second trap (15c) is formed at the suction portion (15) of the compressor (9).
- the suction portion (9a) may be provided not on the side surface of the compressor case as shown in FIG. 1 but on the rear surface of the case (9d) having a circular outer shape.
- FIG. 2 shows a schematic cross-sectional configuration of the reciprocating compressor.
- the discharge pipe (10), suction pipe (15), motor (9 b) In contrast to the compressed cylinder (9c), the refrigerating machine oil (16) is sealed in the case (9e) of the compressor (9) as shown.
- the refrigerator is turned over or tilted, for example, the suction pipe (15) outlet to the machine room (2), that is, the left side plate (5) of the cabinet body (1) in FIG.
- the compressor When the compressor is tilted down, the refrigerating machine oil (16) in the compressor (9) flows out into the suction pipe (15) due to gravity, but the suction pipe (15) is then approximately centered in the width direction on the compressor side.
- the upper end of the suction pipe (15) in the sideways position is higher than the oil level of the refrigerating machine oil accumulated in the compressor, and the U-turn part is the trap part (15b).
- the refrigerating machine oil is prevented from flowing into the cabinet body (1).
- the second trap (15c) extends toward the front of the compressor (9) to almost the center of the depth dimension and is closed As a result, the upper end of the suction pipe (15) is higher than the oil level of the refrigerating machine oil in the compressor, thereby preventing the backflow of the refrigerating machine oil after the trap (15c) to the cabinet body (1) side.
- the suction pipe outlet (15a) Is located above the compressor (9), and the refrigerating machine oil in the compressor does not flow into the cabinet body (1).
- the suction pipe (15) on the compressor (9) is ) Is located higher than the center of the compressor dimension in each of the above directions, and is higher than the oil level of the refrigerating machine oil, so that the oil flows out of the compressor (9). I will not.
- the suction pipe (35) is led out to the machine room (2) from the lower end side of the outer case rear plate (3), contrary to the above embodiment.
- the suction pipe (35) is connected to a suction part (29a) formed on the case surface of the compressor (29) on the side opposite to the outlet side of the suction pipe (35). Is suspended from the outlet (35a) to the machine room (2), and is compressed in the space between the outlet (35a) and the compressor (29).
- a trap (35c) that is extended to almost the center of the depth dimension of the machine and made a U-turn, and after extending the end to the opposite side after passing behind the compressor (29) It is connected to the suction part (29a).
- a trap (35c) extended toward the front of the compressor to approximately the center of the depth dimension to make a U-turn.
- suction pipe (35) The upper end of the refrigeration oil is higher than the oil level of the refrigeration oil in the compressor (29), thereby preventing the refrigeration oil from flowing backward from the trap (35c) and preventing it from flowing into the cabinet (1).
- the refrigerating machine flows out of the compressor for the same reason as in the previous embodiment.
- a reciprocating type compressor In the case of a rotary type compressor, since it is a high-pressure case, as described above, there is a high possibility that the amount of HC refrigerant mixed into the refrigerating machine oil will increase.
- the suction pipe is connected to the cylinder of the compressor, and the refrigerant gas discharged from the cylinder is discharged into the case of the compressor and flows out of the discharge pipe. The same applies to other types of high-pressure case compressors.
- the present invention is not limited to the reciprocating type, and if a refrigerator equipped with a rotary type refrigerant compressor is overturned, the refrigerating machine oil may flow out of the discharge pipe.
- This discharge pipe may be configured in the same manner as the suction pipe configuration in the reciprocating compressor of the embodiment.
- FIG. 4 is a perspective view of a machine room of a refrigerator in which the same parts as those in the previous embodiment are denoted by the same reference numerals.
- a check valve (55) is connected to a suction pipe (55) to a reciprocating compressor (49).
- 55a) and the specific gravity of the valve element in this check valve (55a) is made heavier than the refrigerating machine oil.
- the check valve (55a) originally prevents the backflow of the coolant from the compressor (49) to the suction pipe (55) side. When the compressor is turned over, the suction pipe (55 ) May be located. If the specific gravity of the check valve (55a) is smaller than the refrigerating machine oil, the buoyancy will lift the valve body and the valve will not be able to close. To prevent this, by setting the specific gravity of the valve body larger than that of the refrigerating machine oil, it is possible to prevent the refrigerating machine oil from flowing out of the compressor to the suction pipe regardless of the direction in which the cabinet body falls down. .
- the refrigerator of the present invention when disassembling or crushing for recycling, the refrigerator is stacked in a sideways or inclined state instead of a regular upright state. Even when the refrigerator is stored outdoors or transported, a part of the piping connecting the outlet to the machine room and the suction and discharge parts of the piping formed on the compressor surface is It can be placed above the oil level of the refrigerating machine oil in the compressor when the side and back face down, and inside the crushed cabinet body when crushed. This prevents refrigeration oil from leaking out of the piping and prevents the flammable refrigerant dissolved in the chiller from escaping, thereby preventing the risk of ignition under some conditions.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE60330175T DE60330175D1 (de) | 2002-10-07 | 2003-09-26 | Kühlvorrichtung |
| EP03799145A EP1557623B1 (en) | 2002-10-07 | 2003-09-26 | Refrigerator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002293954A JP3946611B2 (ja) | 2002-10-07 | 2002-10-07 | 冷蔵庫 |
| JP2002-293954 | 2002-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004031666A1 true WO2004031666A1 (ja) | 2004-04-15 |
Family
ID=32064021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/012374 Ceased WO2004031666A1 (ja) | 2002-10-07 | 2003-09-26 | 冷蔵庫 |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1557623B1 (ja) |
| JP (1) | JP3946611B2 (ja) |
| KR (1) | KR20050054982A (ja) |
| CN (1) | CN100439826C (ja) |
| DE (1) | DE60330175D1 (ja) |
| TW (1) | TWI245873B (ja) |
| WO (1) | WO2004031666A1 (ja) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100575678B1 (ko) | 2004-05-18 | 2006-05-03 | 엘지전자 주식회사 | 진동 저감형 냉장고 |
| CN1323269C (zh) * | 2004-07-19 | 2007-06-27 | 广东科龙电器股份有限公司 | 一种立卧两用电冰箱 |
| JP4496944B2 (ja) * | 2004-10-20 | 2010-07-07 | パナソニック株式会社 | 冷蔵庫 |
| JP2010181130A (ja) * | 2009-02-09 | 2010-08-19 | Daikin Ind Ltd | 空気調和機の室外機 |
| ITTO20100051U1 (it) * | 2010-03-25 | 2010-06-24 | Mondial Group Srl | Apparecchio frigorifero ad elevata efficienza. |
| DE102011004592A1 (de) * | 2011-02-23 | 2012-08-23 | BSH Bosch und Siemens Hausgeräte GmbH | Elektrisches Haushaltsgerät |
| DE102014206718A1 (de) * | 2014-04-08 | 2015-10-08 | BSH Hausgeräte GmbH | Haushaltsgerät |
| CN105135768A (zh) * | 2015-09-30 | 2015-12-09 | 海信容声(广东)冷柜有限公司 | 一种制冷装置及其控制方法 |
| CN106813438B (zh) * | 2016-12-01 | 2019-12-06 | 青岛海尔股份有限公司 | 有油压机顶置的冰箱 |
| CN110887263B (zh) * | 2018-09-10 | 2021-07-13 | 安徽美芝制冷设备有限公司 | 压缩机系统 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233381A (ja) * | 1995-02-28 | 1996-09-13 | Hitachi Ltd | 低温用機器 |
| JPH09329386A (ja) * | 1996-06-07 | 1997-12-22 | Hitachi Ltd | 冷蔵庫 |
| JP2002081819A (ja) * | 2000-09-01 | 2002-03-22 | Sanyo Electric Co Ltd | ショーケース |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5841280A (ja) * | 1981-09-04 | 1983-03-10 | Matsushita Electric Ind Co Ltd | 圧縮機の防音構造 |
| SE506059C2 (sv) * | 1996-02-28 | 1997-11-03 | Electrolux Ab | Anordning vid en förångare |
| CN2260211Y (zh) * | 1996-05-15 | 1997-08-20 | 张晓辉 | 下水道用浮子式止回阀 |
| JPH11294332A (ja) * | 1998-04-08 | 1999-10-26 | Matsushita Electric Ind Co Ltd | 冷凍サイクルの圧縮機 |
| DE19845845A1 (de) * | 1998-10-05 | 2000-04-06 | Bsh Bosch Siemens Hausgeraete | Kältegerät |
-
2002
- 2002-10-07 JP JP2002293954A patent/JP3946611B2/ja not_active Expired - Lifetime
-
2003
- 2003-08-27 TW TW092123523A patent/TWI245873B/zh not_active IP Right Cessation
- 2003-09-26 DE DE60330175T patent/DE60330175D1/de not_active Expired - Lifetime
- 2003-09-26 WO PCT/JP2003/012374 patent/WO2004031666A1/ja not_active Ceased
- 2003-09-26 CN CNB038237792A patent/CN100439826C/zh not_active Expired - Fee Related
- 2003-09-26 EP EP03799145A patent/EP1557623B1/en not_active Expired - Lifetime
- 2003-09-26 KR KR1020057005616A patent/KR20050054982A/ko not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233381A (ja) * | 1995-02-28 | 1996-09-13 | Hitachi Ltd | 低温用機器 |
| JPH09329386A (ja) * | 1996-06-07 | 1997-12-22 | Hitachi Ltd | 冷蔵庫 |
| JP2002081819A (ja) * | 2000-09-01 | 2002-03-22 | Sanyo Electric Co Ltd | ショーケース |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1557623A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200409893A (en) | 2004-06-16 |
| JP2004125353A (ja) | 2004-04-22 |
| EP1557623A1 (en) | 2005-07-27 |
| DE60330175D1 (de) | 2009-12-31 |
| JP3946611B2 (ja) | 2007-07-18 |
| TWI245873B (en) | 2005-12-21 |
| CN1688854A (zh) | 2005-10-26 |
| EP1557623A4 (en) | 2006-04-12 |
| EP1557623B1 (en) | 2009-11-18 |
| KR20050054982A (ko) | 2005-06-10 |
| CN100439826C (zh) | 2008-12-03 |
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