WO2003078901A1 - Connection structure of coolant pipe of air conditioner - Google Patents
Connection structure of coolant pipe of air conditioner Download PDFInfo
- Publication number
- WO2003078901A1 WO2003078901A1 PCT/JP2003/002815 JP0302815W WO03078901A1 WO 2003078901 A1 WO2003078901 A1 WO 2003078901A1 JP 0302815 W JP0302815 W JP 0302815W WO 03078901 A1 WO03078901 A1 WO 03078901A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flange
- pipe
- refrigerant
- refrigerant pipe
- indoor unit
- 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
- F16L25/02—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00 specially adapted for electrically insulating the two pipe ends of the joint from each other
- F16L25/026—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00 specially adapted for electrically insulating the two pipe ends of the joint from each other for flanged joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/147—Arrangements for the insulation of pipes or pipe systems the insulation being located inwardly of the outer surface of the pipe
-
- 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
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor 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
- F24F1/26—Refrigerant piping
- F24F1/34—Protection means thereof, e.g. covers for refrigerant pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
-
- 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
- F25D23/003—General constructional features for cooling refrigerating machinery
Definitions
- the present invention relates to a connection structure of a refrigerant pipe of an air conditioner, and more particularly, to an air conditioner divided into an indoor unit and an outdoor unit, wherein the refrigerant is connected between the refrigerant pipe of the indoor unit and the refrigerant pipe of the outdoor unit.
- the present invention relates to a connection structure of a refrigerant pipe of an air conditioner for transmitting an electric signal of an indoor unit and an outdoor unit via a communication pipe for flowing air.
- connection between the indoor unit and the outdoor unit is generally performed by connecting the refrigerant piping between the indoor unit refrigerant piping and the outdoor unit refrigerant piping. This is performed by gas-side connection pipes and liquid-side connection pipes, and electrical connection wiring for transmitting electrical signals between the refrigerant pipes of the indoor unit and the refrigerant pipes of the outdoor unit.
- gas-side connection pipes and liquid-side connection pipes, and electrical connection wiring for transmitting electrical signals between the refrigerant pipes of the indoor unit and the refrigerant pipes of the outdoor unit.
- Japanese Patent Publication No. 7-65783 discloses a configuration in which a gas-side communication pipe and a liquid-side communication pipe are used as electrical connection wiring. Specifically, by providing an electrical insulation device at the connection between the gas side connection pipe and the liquid side connection pipe, the indoor unit refrigerant pipe and the outdoor unit refrigerant pipe, the refrigerant pipe of the indoor unit and the refrigerant pipe of the outdoor unit are provided. In this way, the gas side connection pipe and the liquid side connection pipe are electrically insulated from each other and used as electrical connection wiring.
- connection structure of the refrigerant pipe described above requires high reliability with respect to electrical insulation performance and refrigerant leakage performance.
- the refrigerant pipes on the indoor unit side and the outdoor unit side also have a function as a ground for the compressor and the S magnetic valve constituting the air conditioner, from this viewpoint, the indoor unit side and the outdoor unit side are also considered. Connection between refrigerant pipe on the side and connecting pipe It is necessary to ensure electrical insulation in the above. Disclosure of the invention
- An object of the present invention is to provide an air conditioner divided into an indoor unit and an outdoor unit, wherein the indoor unit and the outdoor unit are connected via a communication pipe for connecting the indoor unit and the outdoor unit and circulating a refrigerant.
- An object of the present invention is to improve the electrical insulation of a refrigerant pipe connection structure of an air conditioner for transmitting electric signals and the reliability against leakage of refrigerant.
- the first flange is provided at the end of the refrigerant pipe of the indoor unit on the connection pipe side and at the end of the refrigerant pipe of the outdoor unit on the connection pipe side.
- the second flange is provided on the connecting pipe corresponding to the first flange.
- the first insulating member is made of an electrically insulating material sandwiched between the first flange and the second flange.
- the plurality of ports fasten the first flange and the second flange.
- the second insulating member is an electrical insulating material interposed between at least one of the first flange and the second flange and the plurality of ports.
- the first flange and the second flange are electrically insulated through the first insulating member, and the first flange and the second flange are electrically insulated by the second insulating member.
- the connection structure of the refrigerant pipe of the air conditioner according to claim 2, wherein the flange structure in which the flange and the second flange are fastened to each other can improve electrical insulation and reliability against refrigerant leakage.
- the ends of the plurality of ports are covered with a coating material made of an electrically insulating material.
- the surface of each pipe may condense due to the temperature difference between the outside temperature and the inside temperature of each pipe. For this reason, even if electrical insulation is sufficient in a state without dew condensation, a state where dew condensation occurs In such a case, there is a risk that the refrigerant pipes and the connection pipes of the indoor unit and the outdoor unit may be energized via the dew condensation water.
- the first flange, the second flange, and the plurality of bolts are covered with a heat insulating material.
- FIG. 1 is a configuration diagram of an air conditioner according to an embodiment of the present invention.
- FIG. 2 is a diagram showing the electrical insulation device of the first embodiment.
- FIG. 3 is a diagram showing an electrical insulation device of a second embodiment. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a diagram showing a configuration of an air conditioner 1 of the present embodiment.
- the air conditioner 1 has an indoor unit 2 installed inside the outer wall 10 of the building, an outdoor unit 3 installed outside the outer wall 10 and a gas side connecting pipe 4 (communicating (Piping), liquid side connecting pipe 5 (connecting pipe), between gas side connecting pipe 4 and gas side refrigerant pipe 3a on indoor unit 2 side, and liquid side connecting pipe 5 and liquid side refrigerant on indoor unit 2 side
- Electrical insulation devices 1 1 and 1 2 provided between piping 2 b, gas-side connecting pipe 4 and outdoor unit 3 between gas-side refrigerant pipe 3 a and liquid-side connecting pipe 5 and outdoor unit
- the electrical insulation devices 13 and 14 provided respectively, the electrical connection wires 2 G and 2 d connected from the indoor unit 2 to the electrical insulation devices 11 and 12 respectively, and the electrical insulation from the outdoor unit 3
- the gas-side connection pipe 4 and the liquid-side connection pipe 5 including the electrical connection wirings 3
- the refrigerant pipes 2a and 2b on the indoor unit 2 side and the refrigerant pipes 3a and 3b on the outdoor unit 3 side are, for example, metal pipes such as copper, and are built in the indoor unit 2 and the outdoor unit 3. Connected to equipment.
- the electrical insulation device 11 is provided between the gas-side connecting pipe 4 and the gas-side refrigerant pipe 2a of the indoor unit 2, and is connected to the gas-side connecting pipe 4 and the gas-side refrigerant pipe 2a of the indoor unit 2 side. Are electrically insulated.
- the electrical insulation device 12 is provided between the liquid-side connecting pipe 5 and the liquid-side refrigerant pipe 2b of the indoor unit 2, and the liquid-side connecting pipe 5 and the liquid-side refrigerant pipe 2b of the indoor unit 2 And are electrically insulated.
- the electrical insulation device 13 is provided between the gas-side connecting pipe 4 and the gas-side refrigerant pipe 3a of the outdoor unit 3, and the gas-side connecting pipe 4 and the gas-side refrigerant pipe 3a of the outdoor unit 3 are provided.
- the electrical insulation device 14 is provided between the liquid-side connecting pipe 5 and the liquid-side refrigerant pipe 3 b of the outdoor unit 3, and is connected to the liquid-side connecting pipe 5 and the liquid-side refrigerant pipe 3 b of the outdoor unit 3.
- a, 2b, 3a, 3b are electrically isolated.
- the electrical connection wirings 2 c, 2 d, 3 c, and 3 d are conductors for transmitting electrical signals such as control signals between the indoor unit 2 and the outdoor unit 3. They are electrically connected to the gas-side communication pipe 4 and the liquid-side communication pipe 5 via 12, 13, and 14.
- the gas side communication pipe 4 has an electric wiring function for connecting between the electric connection wirings 2c and 3G
- the liquid side communication pipe 5 has the function of the electric connection wiring 2d and 3d. It has a function of electric wiring for connecting between them.
- the other electrical insulation devices 12, 13, and 14 have different connection positions with each pipe, but the structure is Description is omitted because it is the same as 1.
- the electrical insulation device 11 includes a refrigerant pipe connection 21 connected to the gas-side refrigerant pipe 2 a of the indoor unit 2 and a communication pipe connection connected to the gas-side communication pipe 4. 2 2, an insulating portion 2 3 for electrically insulating the refrigerant pipe connecting portion 2 1 from the gas side connecting pipe 4 and allowing the refrigerant to flow, and a terminal portion 2 to which the electric connection wiring 2 c is attached. 4 and have.
- the refrigerant pipe connection part 21 is, for example, a pipe made of metal such as copper, and is connected to the gas side of the indoor unit 2 by a flare nut 21 a provided on the refrigerant pipe 2 a side of the indoor unit 2. Connected to refrigerant pipe 2a.
- the communication pipe connection 22 is connected to the gas communication pipe 4 by a flare nut 22 a provided on the gas communication pipe 4 side.
- the refrigerant pipe connection 21 constitutes the end of the gas side refrigerant pipe 2 a on the gas side communication pipe 4 side
- the communication pipe connection 22 is the gas side refrigerant pipe 2 of the gas side communication pipe 4. It constitutes the end on the a side.
- the insulating portion 23 includes an annular first flange 21 b formed at an end of the refrigerant pipe connection portion 21 on the gas side communication pipe 4 side, and an end of the communication pipe connection portion 22 on the indoor unit 2 side.
- the first flange 21b, the second flange 22b, the plurality of through bolts 26 and the nuts 27 are metal members.
- the gasket 25 is an annular member made of an electrically insulating material such as rubber or resin.
- the sleeve 28 is a cylindrical member made of an electrically insulating material such as a resin. Further, the insulating portion 23 is covered with a heat insulating material 30.
- the insulating section 23 electrically insulates the refrigerant pipe connecting section 21 from the connecting pipe connecting section 22 so that the refrigerant can flow. This allows indoors
- the gas-side refrigerant pipe 2 a of the machine 2 and the gas-side communication pipe 4 are electrically insulated through the insulating part 23. Then, between the electrical connection wiring 2 c of the indoor unit 2 and the electrical connection wiring 3 G of the outdoor unit 3, an electric signal is transmitted via the gas-side communication pipe 4. Further, between the electric connection wiring 2 d of the indoor unit 2 and the electric connection wiring 3 d of the outdoor unit 3, an electric signal is transmitted via the liquid-side communication pipe 5.
- connection structure of the refrigerant pipe of the air conditioner of the present embodiment has the following features.
- the ends of the refrigerant pipes 2a and 2b of the indoor unit 2 of the present embodiment (the refrigerant pipe connection 21 in the present embodiment) and the ends of the refrigerant pipes 3a and 3b of the outdoor unit 3 (the present embodiment)
- a flange structure like the insulation part 23 of the electrical insulation devices 11 to 14 is adopted as the connection structure with the connection pipe connection part 2 2), so that reliability against refrigerant leakage is increased. ing.
- a plurality of ports 26 used for fastening the first flange 21- ⁇ and the second flange 22b are formed by a sleeve 28 made of an electrically insulating material and a washer 29 to form the first flange 21b. Because of this, the reliability of electrical insulation is also high.
- the heads 26 a of the plurality of ports 26 are coated with a coating material. Because it is covered, even if dew condensation occurs on the head 26 a of the bolt 26, there is no danger that the refrigerant pipe connection 21 and the connection pipe connection 22 will conduct electricity via the condensation.
- first flange 21b, the second flange 22b, and the plurality of ports 26 are covered with a heat insulating material, dew condensation in the electrical insulation devices 11 to 14 can be suppressed.
- This embodiment has the same basic configuration as the first embodiment, and the electrical insulation device is not required. Only the structure of the edges is different.
- the insulating portion 123 of the present embodiment will be described with reference to FIG.
- the electric insulating device 111 corresponding to the electric insulating device 11 in the first embodiment will be described, and the description of the other electric insulating devices 112 to 114 will be omitted.
- the insulating section 1 2 3 of the electrical insulation device 1 1 1 is connected to the annular first flange 1 2 1 b formed at the end of the refrigerant pipe connection section 1 2 1 on the gas side connection pipe 4 side and the connection pipe.
- An annular second flange 1 2 2b formed at an end of the unit 1 2 2 on the indoor unit 2 side, and provided between the first flange 1 2 1b and the second flange 1 2 2b Gasket 1 2 5 (first insulating member), multiple retainer ports 1 2 6 for fastening first flange 1 2 1 b and second flange 1 2 2 b, and first flange 1 2 1 b It comprises a sleeve 128 (second insulating member) interposed between the port hole and the holding bolt 126.
- the sleeve 128 has a washer portion 128a sandwiched between the head portion 126a (end portion) of the holding port 126 and the first flange 122b.
- the heads 126a of the holding bolts 126 are covered with a coating material made of an electrically insulating material such as ceramics resin.
- the first flange 1 2 1 b, the second flange 1 2 2 b, the plurality of through-ports 1 26 and the nuts 127 are metal members.
- the gasket 125 is an annular member made of an electrically insulating material such as rubber or resin.
- the sleeve 128 is a cylindrical member made of an electrically insulating material such as a resin.
- the insulating section 123 is covered with a heat insulating material 130.
- the first flange and the second flange are provided on the refrigerant pipe and the connection pipe via the refrigerant pipe connection and the connection pipe connection that constitute the electrical insulation device.
- it may be provided directly on the refrigerant pipe and the communication pipe.
- the washer may be attached to a force nut attached to the head side of the through port.
- the electrical insulation device is disposed outside the indoor unit and the outdoor unit, but may be incorporated inside the indoor unit and the outdoor unit.
- the flange structure is used to electrically insulate the refrigerant pipe of the indoor unit and the refrigerant pipe of the outdoor unit and the communication pipe, so that the electric insulation and the reliability with respect to the leakage of the refrigerant are performed. Can be increased.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Other Air-Conditioning Systems (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/506,633 US7017362B2 (en) | 2002-03-18 | 2003-03-10 | Connection structure of coolant pipe of air conditioner |
| AU2003213444A AU2003213444A1 (en) | 2002-03-18 | 2003-03-10 | Connection structure of coolant pipe of air conditioner |
| EP03708531A EP1486737A4 (en) | 2002-03-18 | 2003-03-10 | CONNECTING CONSTRUCTION FOR A COOLING PIPE OF AN AIR-CONDITIONING SYSTEM |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002/74380 | 2002-03-18 | ||
| JP2002074380A JP3985555B2 (ja) | 2002-03-18 | 2002-03-18 | 空気調和装置の冷媒配管の接続構造 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003078901A1 true WO2003078901A1 (en) | 2003-09-25 |
Family
ID=28035301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/002815 Ceased WO2003078901A1 (en) | 2002-03-18 | 2003-03-10 | Connection structure of coolant pipe of air conditioner |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7017362B2 (ja) |
| EP (1) | EP1486737A4 (ja) |
| JP (1) | JP3985555B2 (ja) |
| CN (1) | CN1325846C (ja) |
| AU (1) | AU2003213444A1 (ja) |
| WO (1) | WO2003078901A1 (ja) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1724534B1 (en) | 2004-03-09 | 2012-05-30 | Mitsubishi Denki Kabushiki Kaisha | Air conditioner, signal transmission method, and signal transmission method for air conditioner |
| JP4498157B2 (ja) * | 2005-01-31 | 2010-07-07 | 三菱電機株式会社 | 通信用治具及び空気調和機 |
| JP5531460B2 (ja) * | 2009-06-15 | 2014-06-25 | ダイキン工業株式会社 | 空気調和機 |
| JP5388969B2 (ja) * | 2010-08-23 | 2014-01-15 | 三菱電機株式会社 | 熱交換器及びこの熱交換器が搭載された空気調和機 |
| CN104075387A (zh) * | 2013-03-26 | 2014-10-01 | 海信(山东)空调有限公司 | 空调室内外机联机管路的连接结构和连接方法 |
| USD739506S1 (en) * | 2014-06-27 | 2015-09-22 | Eaton Corporation | Sensor enclosure assembly for a hose |
| USD755938S1 (en) * | 2014-06-27 | 2016-05-10 | Eaton Corporation | Sensor enclosure assembly for a hose |
| CN104075054A (zh) * | 2014-06-30 | 2014-10-01 | 常州市瑞泰工程机械有限公司 | 液压绝缘接头 |
| US10907735B2 (en) * | 2016-03-18 | 2021-02-02 | Shimizu Alloy Mfg. Co., Ltd. | Gasket and flange connection structure for plumbing instrument using the same |
| JP6583489B1 (ja) * | 2018-06-15 | 2019-10-02 | ダイキン工業株式会社 | 熱交換ユニット |
| WO2022110714A1 (zh) * | 2020-11-27 | 2022-06-02 | 广东美的制冷设备有限公司 | 空调器 |
| CN112747388A (zh) | 2021-02-03 | 2021-05-04 | 珠海格力电器股份有限公司 | 空调管路装置及空调 |
| CN114963474A (zh) * | 2022-04-22 | 2022-08-30 | 青岛海尔空调器有限总公司 | 导电组件及空调器 |
| CN119687537A (zh) * | 2023-09-22 | 2025-03-25 | 青岛海尔智慧楼宇科技有限公司 | 空调通讯传输系统 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51128024U (ja) * | 1975-04-14 | 1976-10-16 | ||
| JPH04136A (ja) * | 1990-04-13 | 1992-01-06 | Mitsubishi Electric Corp | 分離型空気調和機の運転制御装置 |
| JPH0765783A (ja) | 1993-08-31 | 1995-03-10 | Kawasaki Steel Corp | 二次イオン質量分析装置 |
| JPH1054498A (ja) * | 1996-08-09 | 1998-02-24 | Nippon Jiyaketsuto Kk | 配管接合部断熱材ユニットおよびその施工方法 |
| JP2000329273A (ja) * | 1999-05-18 | 2000-11-30 | Kubota Corp | 管継手部の絶縁構造 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1590813A (ja) * | 1968-11-04 | 1970-04-20 | ||
| AU528001B2 (en) * | 1979-05-09 | 1983-03-31 | Georg Mez | Air conducting passing insulation support |
| US5622058A (en) * | 1995-06-07 | 1997-04-22 | U.S. Natural Resources, Inc. | Modular room air conditioner |
| US5611680A (en) * | 1995-12-18 | 1997-03-18 | The Marley Company | Spool assembly for field adjustable column length pump systems |
-
2002
- 2002-03-18 JP JP2002074380A patent/JP3985555B2/ja not_active Expired - Fee Related
-
2003
- 2003-03-10 WO PCT/JP2003/002815 patent/WO2003078901A1/ja not_active Ceased
- 2003-03-10 CN CNB03804353XA patent/CN1325846C/zh not_active Expired - Fee Related
- 2003-03-10 US US10/506,633 patent/US7017362B2/en not_active Expired - Fee Related
- 2003-03-10 AU AU2003213444A patent/AU2003213444A1/en not_active Abandoned
- 2003-03-10 EP EP03708531A patent/EP1486737A4/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51128024U (ja) * | 1975-04-14 | 1976-10-16 | ||
| JPH04136A (ja) * | 1990-04-13 | 1992-01-06 | Mitsubishi Electric Corp | 分離型空気調和機の運転制御装置 |
| JPH0765783A (ja) | 1993-08-31 | 1995-03-10 | Kawasaki Steel Corp | 二次イオン質量分析装置 |
| JPH1054498A (ja) * | 1996-08-09 | 1998-02-24 | Nippon Jiyaketsuto Kk | 配管接合部断熱材ユニットおよびその施工方法 |
| JP2000329273A (ja) * | 1999-05-18 | 2000-11-30 | Kubota Corp | 管継手部の絶縁構造 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1486737A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1636123A (zh) | 2005-07-06 |
| EP1486737A1 (en) | 2004-12-15 |
| US20050120732A1 (en) | 2005-06-09 |
| AU2003213444A1 (en) | 2003-09-29 |
| US7017362B2 (en) | 2006-03-28 |
| EP1486737A4 (en) | 2010-05-05 |
| JP2003269749A (ja) | 2003-09-25 |
| JP3985555B2 (ja) | 2007-10-03 |
| CN1325846C (zh) | 2007-07-11 |
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