WO2003027578A1 - Outdoor unit of air conditioner - Google Patents
Outdoor unit of air conditionerInfo
- Publication number
- WO2003027578A1 WO2003027578A1 PCT/JP2002/009126 JP0209126W WO03027578A1 WO 2003027578 A1 WO2003027578 A1 WO 2003027578A1 JP 0209126 W JP0209126 W JP 0209126W WO 03027578 A1 WO03027578 A1 WO 03027578A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blower
- fan
- outdoor unit
- diameter
- air conditioner
- 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
- F24F1/46—Component arrangements in 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
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
Definitions
- the present invention relates to an outdoor unit of an air conditioner provided with two blowers arranged vertically.
- An air conditioner generally used includes an indoor unit arranged in a room to be air-conditioned and an outdoor unit arranged outdoors. Refrigerant piping and electric wiring are connected between these indoor and outdoor units.
- the inside of the outdoor unit main body which is a housing, is partitioned by a partition plate, while the space is a heat exchange room, and an outdoor heat exchanger, a blower, and the like are arranged.
- a compressor, refrigerant piping, electric parts box, etc. are arranged using the space as a machine room.
- the height of the outdoor heat exchanger provided in the outdoor unit is almost the same as the height of a person. Therefore, two blowers are required to send outside air to the outdoor heat exchanger in the vertical direction.
- Each blower has a large air flow and good air blowing efficiency, for example, has a propeller fan, and is fitted to the rotation shaft of the fan motor.
- the propeller fans are set to have the same diameter as long as they fit within the size of the outdoor unit body.
- the outside temperature is low, so that the drain water accumulated on the bottom plate may freeze before it is discharged.
- the defrosting operation is repeated, the ice of the drain water frozen on the bottom plate grows, and the height gradually increases.
- the propeller fan is locked by the ice and cannot rotate, causing overcurrent to flow through the fan motor and causing a failure. Even if the fan rotates, the propeller fan may hit the ice, and the fan itself may be deformed or damaged.
- the electric component box provided in the machine room accommodates various electric components therein, and for example, there are electric components such as giant transistors which generate an extremely large amount of heat. Therefore, an electric component cooler called a heat sink is installed near the electric component that generates a large amount of heat.
- This cooler for electric parts has a heat absorbing surface and a heat radiating surface, and an electric component having a large amount of heat is attached to the heat absorbing surface, and the heat radiating surface is finished.
- An object of the present invention is to provide a fan in which a fan of a lower side fan is frozen in order to suppress a reduction in an amount of blown air as much as possible, assuming that two blowers are arranged vertically.
- the reliability is improved due to less restriction of the ren water, and the large fan diameter near the cooler for electric components ensures that many winds are generated.
- An object of the present invention is to provide an outdoor unit of an air conditioner that flows to the electric component cooler side and prevents a decrease in heat radiation efficiency in the electric component cooler.
- the interior of the outdoor unit body is partitioned by a partition plate, one space of which is a heat exchange room in which an outdoor heat exchanger and a blower are arranged, and the other space is a compressor and a compressor.
- the blower includes a fan motor and a fan fitted to a rotation shaft of the fan motor. The two fans are arranged at a predetermined interval in the vertical direction, and the diameter of the fan of the upper fan is set to be larger than the diameter of the fan of the lower fan. .
- FIG. 1 is an exploded perspective view showing components constituting an outdoor unit according to an embodiment of the present invention.
- Figure 2 is an external view of the outdoor unit with some parts omitted.
- FIG. 1 is an exploded perspective view of each component
- FIG. 2 is a perspective view showing an internal configuration with parts on the front side omitted.
- the outdoor unit main body 1 composed of a housing has a vertically long rectangular box shape.
- the outdoor unit main body 1 uses a crossbar 1a whose left side and part of the rear side in the figure intersect in a rectangular shape, and the inside of the main body 1 can be seen through. All surfaces except the left side and the rear surface provided with the pier 1a are formed of a plate.
- the front of the outdoor unit body 1 is divided into a first front plate lb and a second front plate 1c provided side by side with the first front plate and partially bent in the lateral direction. I have.
- a peripheral surface is formed together with the crosspiece 1a, with a bent plate 1d forming a part of the right side surface and the rear surface. The upper and lower surfaces of this peripheral body are closed by a top plate le and a bottom plate 1f to form the outdoor unit body.
- the interior of the outdoor unit main body 1 is divided into two by a partition plate 3.
- the front side edge of the partition plate 3 coincides with the mating edge of the first front plate 1b and the second front plate 1c.
- the rear portion of the partition plate 3 is bent obliquely near the edge, and this edge coincides with the mating edge between the rear edge of the bent plate 1d and the end of the bar 1a.
- the upper end ⁇ of the partition plate 3 is in contact with the top plate 1 e, and the lower edge of the partition plate is in contact with the bottom plate 1 f to partition the inside of the outdoor unit 1.
- the fangards 2a and 2b are mounted side by side. These fan guards 2a and 2b are attached to a blower, which will be described later, disposed in the outdoor unit main body 1, and prevent the entry of fingers and objects to such an extent that the ventilation of the heat exchange air is not impaired. .
- One of the partition spaces in the outdoor unit main body 1 facing the installation site of the fang 2a is referred to as a heat exchange room 4, and the other space not facing the fang 2a is referred to as a machine room 5.
- the heat exchange chamber 4 is partially communicated with the outside from the part surrounded by the pier la, but the machine room 5 is surrounded by plates such as the second front plate 1c and the bent plate 1d. It is surrounded by the body and almost closed.
- the diameter of the lower bellmouth 6b and the outlet 7b is designed to be smaller than the diameter of the upper bellmouth 6a and the outlet 7a for the reason described below. .
- an outdoor heat exchanger 8 is arranged, and a blower support 9 is arranged.
- a first blower 10a and a second blower 10b are mounted and supported on the blower support 9 in a vertical direction.
- the outdoor heat exchanger 8 is mounted on the bottom plate 1f, and its height is designed to be almost the same as that of the first front plate 1b.
- the main body 1 is formed substantially in an L-shape in plan view so as to follow the crosspiece 1a forming the left side and the back of the main body 1.
- the blower support 9 has a vertically elongated shape in which a lower end is mounted and fixed on the bottom plate 1 f and an upper end is hooked on an upper end surface of the outdoor heat exchanger 8.
- the first and second blowers 10a and 10b supported by the blower support 9 are fitted to fan motors 11a and 11b, respectively, and a rotation shaft of the fan motor. It consists of propeller fans 12a and 12b, which are fixed and fixed, and force.
- the first and second blowers 10a, 10b are located at positions facing the outlets 7a, 7b.
- a part of the above-mentioned probe fans 12a and 12b is inserted into the vent holes 6a and 6b which are attached to the outlets 7a and 7b, and rotates inside the vent holes. Make a blow.
- the diameter of the propeller fan 12 a in the first blower 10 a (i> D a is the diameter of the propeller fan 12 b in the second blower 10 b ⁇ i) D b
- the level is set so that it is large (c /) D a ⁇ (/) D b).
- the diameter 0Da of the propeller fan 12a of the first blower 10a is set to be as large as possible due to space conditions, while the second blower 10O diameter of propeller fan 12b of b
- the output of the fan motor 11b of the second blower 10b is smaller than the output of the fan motor 11a of the first blower 10a.
- the mounting position of the first blower 10a on the upper side does not change, and the propeller fan 12a of the first blower 10a and the peripheral end of the second blower 10b do not change. If the mounting position of the second blower 10b is shifted to the upper side in order to keep the distance between the propeller fan 12b and the peripheral edge constant, the propeller fan of the second blower 10b The distance between the 1 2 b edge and the bottom plate 1 f will further increase.
- »Db is larger than the diameter of the propeller fan 12a of the first blower 10a
- the distance between the peripheral end of the propeller fan 12b of the second blower 10b and the bottom plate 1f increases by the amount set to be small.
- a compressor 13 is arranged, and an accumulator 14 is arranged alongside the compressor.
- a four-way valve 15 is provided above the compressor 13, and the compressor 13, the accumulator 14, and the four-way valve 15 are refrigerant (not shown). Connected via a tube. Further, the compressor 13 and the outdoor heat exchanger 8 are also connected via a refrigerant pipe (not shown) to form a refrigeration cycle with the indoor heat exchanger of the indoor unit.
- the electrical component box 16 has a front box member 16a to which inverters and other low-heat-dissipating electrical components such as terminals are attached, as well as control electrical components and giant transistors. It consists of a side box member 16b to which electrical components with a large amount of heat are attached.
- the side box member 16 b is attached to a heat absorbing surface formed on one side of an electric component cooler (also referred to as a heat sink) 20 disposed above the partition plate 3.
- the other side of the electric component cooler 20 is provided with a heat radiating surface, which is exposed to the heat exchange chamber 4 via the partition plate 3.
- the electric component cooler 20 is attached to the upper part of the partition plate 3, and It is located very close to the first blower 10a located at the top.
- an outside air introduction hole is provided in the upper portion on the back side of the bent plate 1d, and a machine room is provided in the partition plate 3 near the electric component cooler 20.
- a conduction hole is provided to connect the heat exchange chamber 4 to the heat exchange chamber 5.
- the compressor 13 When a command to start the operation of the cooling / freezing cycle is issued, the compressor 13 is driven and the first and second compressors are operated. Blowers 10a and 10b are driven. 6
- drain water collected on the bottom plate 1f may freeze before being discharged.
- the defrosting operation is repeated, the ice of the drain water frozen on the bottom plate 1f grows, and the height gradually increases.
- the diameter ⁇ Db of the propeller fan 12 b in the second blower 10 b on the lower side is changed to the propeller fan 1 b in the first blower 10 a on the upper side.
- the diameter ⁇ i> of 2 a is set to be smaller than D a, and a sufficient space is provided between the peripheral end of the propeller fan 12 b and the bottom plate 1 f.
- the propeller fan 12b is not restricted by the ice, is always rotatable, and an overcurrent flows through the fan motor 11b, and the propeller fan 12b The fan is not deformed or damaged by the ice, and reliability is ensured.
- the air flow of the first air blower 10a is different. Since the airflow was as large as possible and the airflow of the second blower 10b was kept to the minimum necessary, the heat exchange efficiency of the outdoor heat exchanger 8 could be reduced. Does not reach.
- the outside air introduction hole is provided in the bent plate 1 d and the conduction hole is provided in the partition plate 3 in the vicinity of the electric component cooler 20, the blowing action of each of the blowers 10 a and 10 b is provided. At the same time, outside air is guided into the machine room 5 from the outside air inlet, and further to the heat exchange chamber 4 via the conduction hole.
- the outside air guided into the machine room 5 from the outside air introduction hole is discharged to the heat exchange room 4 through the conduction holes together with the hot air discharged into the machine room, and therefore, the cooling inside the machine room 5 Is performed.
- the electric component cooler 2 ⁇ absorbs heat from the large heat-generating electric components such as the transistor and the transistor on the heat absorbing surface on the machine room 5 side, and the heat dissipating surface on the heat exchange room 5 side. Heat is dissipated and cools electrical components. Since a conduction hole is provided in the vicinity of the electric component cooler 20, when the outside air introduced into the machine room 5 is guided from the conduction hole to the heat exchange chamber 4, the electric component cooling is performed. This cools the vessel 20.
- the heat radiating surface of the electric component cooler 20 is exposed to the heat exchange chamber 4 via the partition plate 3 and is located very close to the first blower 10a on the upper side. ing. That is, the wind speed in the vicinity of the propeller fan 12a of the first blower 10a with respect to the electric component cooler 20 is increased, and the heat radiation efficiency is improved.
- the fall of the amount of ventilation is suppressed as much as possible, the fan of a lower side blower is restrained from being restrained by ice, and the fall of the radiation efficiency of the electric component cooler is prevented.
- An outdoor unit of an air conditioner can be obtained.
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)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02799463A EP1443282A4 (en) | 2001-09-21 | 2002-09-06 | EXTERNAL UNIT FOR AIR CONDITIONING |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001289812A JP2003097828A (ja) | 2001-09-21 | 2001-09-21 | 空気調和機の室外機 |
| JP2001-289812 | 2001-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003027578A1 true WO2003027578A1 (en) | 2003-04-03 |
Family
ID=19112252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2002/009126 Ceased WO2003027578A1 (en) | 2001-09-21 | 2002-09-06 | Outdoor unit of air conditioner |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1443282A4 (ja) |
| JP (1) | JP2003097828A (ja) |
| CN (1) | CN1556905A (ja) |
| WO (1) | WO2003027578A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004094917A1 (en) * | 2003-04-23 | 2004-11-04 | Lg Electronics, Inc. | Front suction/discharge type outdoor unit for air conditioner and outdoor unit installation system using it |
| CN1320319C (zh) * | 2003-04-23 | 2007-06-06 | Lg电子株式会社 | 嵌入式空调器室外机 |
| WO2007094578A3 (en) * | 2006-02-16 | 2009-06-04 | Lg Electronics Inc | Air conditioner |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100101019A (ko) * | 2005-05-31 | 2010-09-15 | 엘지전자 주식회사 | 분리형 공기조화기용 실외기 |
| FR2897600B1 (fr) * | 2006-02-21 | 2010-05-14 | Tecumseh Europe Sa | Montage de facades sur un boitier |
| ITBS20060045A1 (it) * | 2006-02-28 | 2007-09-01 | Olimpia Splendid S P A | Unita' esterna per condizionatori |
| EP1959204B1 (en) * | 2007-02-13 | 2011-08-03 | Mitsubishi Electric Corporation | Air/water heat exchange apparatus |
| CN101592363B (zh) * | 2008-05-26 | 2013-09-25 | 乐金电子(天津)电器有限公司 | 分体式空调室外机 |
| JP2014111998A (ja) * | 2011-03-28 | 2014-06-19 | Toshiba Carrier Corp | 熱源ユニット |
| JP5873995B2 (ja) * | 2011-04-28 | 2016-03-01 | パナソニックIpマネジメント株式会社 | 空気調和装置の室外ユニット |
| JP2015127593A (ja) * | 2012-04-27 | 2015-07-09 | 東芝キヤリア株式会社 | 空気調和機の室外機 |
| JP2015187506A (ja) * | 2012-08-08 | 2015-10-29 | 東芝キヤリア株式会社 | 冷凍サイクル装置の室外ユニット |
| JP6251802B2 (ja) * | 2014-05-02 | 2017-12-20 | 東芝キヤリア株式会社 | 冷凍サイクル装置の室外機 |
| CN104456764B (zh) * | 2014-10-29 | 2017-11-14 | 珠海格力电器股份有限公司 | 风机组件及具有其的空调器 |
| WO2016088748A1 (ja) * | 2014-12-05 | 2016-06-09 | 東芝キヤリア株式会社 | 冷凍サイクル装置の室外ユニット |
| WO2017033680A1 (ja) * | 2015-08-26 | 2017-03-02 | パナソニックヘルスケアホールディングス株式会社 | 超低温フリーザ |
| CN108204753A (zh) * | 2018-02-09 | 2018-06-26 | 珠海格力电器股份有限公司 | 热交换设备和空调机组 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6092070U (ja) * | 1983-11-30 | 1985-06-24 | 三菱電機株式会社 | 空気調和機の室外機 |
| JPS60104682U (ja) * | 1983-12-21 | 1985-07-17 | 三菱電機株式会社 | 空気調和機の室外機 |
| JPH09280608A (ja) * | 1996-04-17 | 1997-10-31 | Mitsubishi Heavy Ind Ltd | 空気調和機 |
| JPH09292142A (ja) * | 1996-04-25 | 1997-11-11 | Mitsubishi Heavy Ind Ltd | 空気調和機の室外ユニット |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07248133A (ja) * | 1994-03-11 | 1995-09-26 | Fujitsu General Ltd | 空気調和機の室外機 |
| JPH11118198A (ja) * | 1997-10-14 | 1999-04-30 | Daikin Ind Ltd | 空気調和機の室外機 |
| JP3244470B2 (ja) * | 1998-06-24 | 2002-01-07 | ダイキン工業株式会社 | 空気調和機用空冷式室外機 |
| JP2000161716A (ja) * | 1998-11-25 | 2000-06-16 | Sharp Corp | 空気調和機の室外機 |
-
2001
- 2001-09-21 JP JP2001289812A patent/JP2003097828A/ja not_active Abandoned
-
2002
- 2002-09-06 WO PCT/JP2002/009126 patent/WO2003027578A1/ja not_active Ceased
- 2002-09-06 CN CNA028184793A patent/CN1556905A/zh active Pending
- 2002-09-06 EP EP02799463A patent/EP1443282A4/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6092070U (ja) * | 1983-11-30 | 1985-06-24 | 三菱電機株式会社 | 空気調和機の室外機 |
| JPS60104682U (ja) * | 1983-12-21 | 1985-07-17 | 三菱電機株式会社 | 空気調和機の室外機 |
| JPH09280608A (ja) * | 1996-04-17 | 1997-10-31 | Mitsubishi Heavy Ind Ltd | 空気調和機 |
| JPH09292142A (ja) * | 1996-04-25 | 1997-11-11 | Mitsubishi Heavy Ind Ltd | 空気調和機の室外ユニット |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1443282A4 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004094917A1 (en) * | 2003-04-23 | 2004-11-04 | Lg Electronics, Inc. | Front suction/discharge type outdoor unit for air conditioner and outdoor unit installation system using it |
| US7191616B2 (en) | 2003-04-23 | 2007-03-20 | Lg Electronics Inc. | Front suction/discharge type outdoor unit for air-conditioner and outdoor unit installation system using it |
| CN1320319C (zh) * | 2003-04-23 | 2007-06-06 | Lg电子株式会社 | 嵌入式空调器室外机 |
| WO2007094578A3 (en) * | 2006-02-16 | 2009-06-04 | Lg Electronics Inc | Air conditioner |
| CN101675303B (zh) * | 2006-02-16 | 2012-06-27 | Lg电子株式会社 | 空调 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1443282A1 (en) | 2004-08-04 |
| JP2003097828A (ja) | 2003-04-03 |
| CN1556905A (zh) | 2004-12-22 |
| EP1443282A4 (en) | 2008-06-25 |
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