WO2009104471A1 - Boîte de commande d'unité extérieure - Google Patents

Boîte de commande d'unité extérieure Download PDF

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Publication number
WO2009104471A1
WO2009104471A1 PCT/JP2009/051790 JP2009051790W WO2009104471A1 WO 2009104471 A1 WO2009104471 A1 WO 2009104471A1 JP 2009051790 W JP2009051790 W JP 2009051790W WO 2009104471 A1 WO2009104471 A1 WO 2009104471A1
Authority
WO
WIPO (PCT)
Prior art keywords
control box
heat exchange
outdoor unit
exchange chamber
exhaust
Prior art date
Application number
PCT/JP2009/051790
Other languages
English (en)
Japanese (ja)
Inventor
康弘 内藤
Original Assignee
三菱重工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三菱重工業株式会社 filed Critical 三菱重工業株式会社
Priority to EP09713516.4A priority Critical patent/EP2244024A4/fr
Publication of WO2009104471A1 publication Critical patent/WO2009104471A1/fr

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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
    • F24F1/20—Electric components for 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
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components
    • 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
    • F24F2013/207—Casings or covers with control knobs; Mounting controlling members or control units therein

Definitions

  • the present invention relates to a control box for an outdoor unit that is disposed inside an outdoor unit of an air conditioner and in which a control board and other electrical components are accommodated.
  • Equipment such as a compressor, an outdoor heat exchanger, an outdoor fan, and a four-way selector valve are arranged inside the casing of the outdoor unit in the separate type air conditioner, and these outdoor unit side devices are controlled.
  • a control box in which a control board and other electrical components are accommodated is installed.
  • the inside of the casing of the outdoor unit is partitioned by a partition plate into a heat exchange chamber in which an outdoor heat exchanger, an outdoor fan, and the like are disposed, and a machine room in which devices such as a compressor and a four-way switching valve are disposed.
  • the control box is arranged between the heat exchange chamber and the machine room at the upper part of the partition plate so that the heat dissipating fins and the like of some electrical components are exposed to the heat exchange chamber side. .
  • the ventilation system path for heat dissipation formed in the control box serves as an intrusion system path for water droplets from the heat exchange chamber side into the control box
  • the outdoor space is used in the heat exchange chamber. If the water droplets wound up by the rotation of the fan collide with the partition plate and rebound, there is a risk of entering the control box as it is. If water drops enter the control box and it hits the electrical components such as the control board installed in the control box, it will cause corrosion and failure of the electrical components, which will reduce the product quality and reliability. Leads to problems.
  • the present invention has been made in view of such circumstances, and prevents water droplets from entering the control box by going back the ventilation system path from the control box to the heat exchange chamber, resulting from the intrusion of water droplets. It is an object of the present invention to provide an outdoor unit control box that can improve the quality and reliability of products by eliminating corrosion, failure, etc. of control boards and other electrical components.
  • control box of the outdoor unit of the present invention employs the following means. That is, one aspect of the control box of the outdoor unit according to the present invention is a machine room in which a heat exchanger is provided with an outdoor heat exchanger, an outdoor fan, etc., and a compressor is provided. Ventilation formed inside the control box in the control box of the outdoor unit that is partly extended to the heat exchanging chamber side at the upper part of the machine room in the housing partitioned into Provided at one end of the passage is an exhaust opening that opens in the heat exchange chamber so as to face the partition plate, extends into the control box at the exhaust opening, and opens at the end toward the ventilation path. An exhaust duct with a vent was provided.
  • the exhaust port opened to face the partition plate in the heat exchange chamber is provided on one end side of the ventilation path formed in the control box, and the exhaust port extends into the control box. Since the exhaust duct having a vent opening opened toward the ventilation path is provided at the end thereof, the ventilation path of the control box is caused by the suction action when the outdoor fan is driven and the outside air is circulated in the heat exchange chamber.
  • the air inside is exhausted to the heat exchange chamber side through the vent, exhaust duct, and exhaust port, and the heat in the control box is radiated, while water droplets rolled up by the outdoor fan are discharged from the exhaust port to the exhaust duct and vent If the water droplets repelled by the partition plate do not rebound further and proceed in the exhaust duct, they will not enter the control box. Not come. Thereby, it is possible to prevent water droplets from entering the control box by going back along the ventilation system. Therefore, it is possible to prevent corrosion, failure, and the like due to water droplets being applied to electrical components such as a control board, and to improve product quality and reliability.
  • the vent of the exhaust duct can be opened in any position, area, etc.
  • the heat dissipation efficiency in the control box and the cooling efficiency of the electrical components can be set optimally, and the heat dissipation efficiency and cooling efficiency can be increased.
  • by providing an exhaust duct at the exhaust port it is possible to reduce mechanical noise (compressor noise) radiated from the machine room to the heat exchange chamber through the ventilation system by using the muffler effect.
  • an exhaust system path bent in a crank shape by the vent, the exhaust duct, and the exhaust port may be formed.
  • the exhaust system path bent in a crank shape is formed by the vent, the exhaust duct, and the exhaust port, the water droplets wound up by the outdoor fan on the heat exchange chamber side are bent in the crank shape. It is difficult to enter the control box unless it repeatedly advances and repels several times. Therefore, it is possible to reliably prevent water droplets from entering the control box, and it is possible to more effectively reduce mechanical noise (compressor noise) diffused through the exhaust system.
  • the return portion since the return portion is formed in the attachment portion of the exhaust duct, the return portion can prevent water droplets from entering the control box from the gap of the attachment portion of the exhaust duct. Accordingly, it is possible to almost completely prevent water droplets from entering the control box from the ventilation path and improve the quality and reliability of the product.
  • the control box You can't get inside. This prevents water droplets from entering the control, thus preventing corrosion, failure, etc. caused by water droplets on the electrical components such as the control board, and improving product quality and reliability. Can do.
  • the vents of the exhaust duct can be opened in any position, area, etc., the heat dissipation efficiency in the control box and the cooling efficiency of the electrical components can be set to the optimum state, and the heat dissipation efficiency and cooling efficiency can be improved. it can. Furthermore, due to the muffler effect of the exhaust duct, it is possible to reduce mechanical noise (compressor noise) that is dissipated from the machine room through the ventilation system path to the heat exchange chamber side.
  • FIG. 3 is a front view in which the outdoor unit control box shown in FIG. 2 is partially broken. It is the longitudinal cross-sectional view which expanded the exhaust-portion part of the outdoor unit control box shown in FIG. It is a perspective view of the exhaust duct provided in the exhaust port of the outdoor unit control box shown in FIG. It is a perspective view of the fitting part in the attachment part of the exhaust duct shown in FIG.
  • Air conditioner separate type air conditioner
  • Outdoor unit 30 Housing 30A Partition plate 30B Machine room 30C Heat exchange chamber 31 Outdoor heat exchanger 32 Outdoor fan 33 Compressor 34 Control box 44 Ventilation channel 46 Exhaust port 47 Vent port 48 Exhaust duct 48A Return part 49 Exhaust system channel ( Ventilation path)
  • FIG. 1 is a perspective view of a separate air conditioner including an outdoor unit control box according to an embodiment of the present invention.
  • the separate type air conditioner 1 includes an indoor unit 2 installed indoors, an outdoor unit 3 installed outdoors, a refrigerant pipe 4 and an electrical wiring 5 that connect the indoor unit 2 and the outdoor unit 3, and air conditioning. And a remote controller 6 for operating the machine 1.
  • the indoor unit 2 includes a housing 22 having a room air inlet 20 and a temperature-controlled air outlet 21, an air filter 23 disposed in the housing 22, an indoor heat exchanger 24, and an indoor fan 25.
  • the indoor air is circulated by the indoor fan 25, and this air is heat-exchanged with the refrigerant in the indoor heat exchanger 24 to be cooled or heated, and blown into the room to air-condition the room. It has a function.
  • the outdoor unit 3 is arranged on the side of the heat exchange chamber 30C of the housing 30 and the housing 30 partitioned by the partition plate 30A into the machine room 30B and the heat exchange chamber 30C in which the outside air can be circulated.
  • the control box 34 and the like in which the electrical components are housed are installed, and the refrigerant compressed by the compressor 33 is converted into high-temperature / high-pressure gas or high-pressure liquid refrigerant condensed in the outdoor heat exchanger 31 by switching the four-way switching valve. It has the function of adjusting and supplying to the indoor unit 2.
  • the control box 34 is disposed in the upper part of the machine room 30B and directly below the top plate constituting the housing 30 with a predetermined gap, and a heat release part and a heat release component, which will be described later, form a part thereof.
  • a fin installation portion and the like are installed on the upper part of the partition plate 30A between the machine room 30B and the heat exchange chamber 30C so as to extend toward the heat exchange chamber 30C (see FIGS. 3 and 4). .
  • FIG. 2 is an external perspective view of the control box 34 provided in the housing 30.
  • FIG. 3 is a front view of a part of the control box 34.
  • FIG. An enlarged vertical sectional view is shown.
  • the control box 34 includes a box main body 40 and a lid body 41 attached to cover the upper surface of the box main body 40.
  • Each of the box body 40 and the lid body 41 is a resin molded product molded from a flame-retardant ABS resin or the like.
  • the box body 40 is provided with a terminal block 42 to which electrical wiring is connected on the outside side, and on the inside side, in addition to the control board 43, various electrical components such as an inverter power module, a capacitor, and an inductor which are not shown. Is housed and installed.
  • the control board 43 is installed in a substantially hermetically sealed state so that the pattern surface side is waterproof and dust-proof by the lid body 41 on the upper portion of the box body 40 with the pattern surface side facing upward.
  • a ventilation path 44 is formed on the lower side in the box body 40. After the outside air guided to one end side in the box body 40 has passed through the ventilation path 44, the heat exchange chamber 30C side is opened from the other end side. And the heat in the box body 40 can be dissipated.
  • the other end side of the box body 40 extends to the heat exchange chamber 30C side as described above, and a heat generating component such as an inverter power module is cooled in the extended portion exposed to the heat exchange chamber 30C.
  • a heat dissipating fin 45 of the heat sink is provided, and an exhaust port 46 for exhausting the cooling air that has passed through the box main body 40 to the heat exchange chamber 30C side is provided below the heat sink.
  • the exhaust port 46 is configured to be opened facing the partition plate 30 ⁇ / b> A in the heat exchange chamber 30 ⁇ / b> C by a guide portion 46 ⁇ / b> A formed integrally with the box body 40.
  • the exhaust port 46 is provided with a resin exhaust duct 48 that extends into the box main body 40 and has an air vent 47 that opens toward the ventilation path 44 at an end thereof.
  • An exhaust system passage 49 bent in a crank shape reaching the exhaust port 46 through the exhaust duct 48 is formed.
  • the exhaust duct 48 has an open lower end, and a return portion 48A is formed integrally with an attachment portion for the lower exhaust port 46.
  • the extension length (height direction dimension) of the exhaust duct 48 into the box body 40 is such that water droplets repelled by colliding with the partition plate 30A enter from the exhaust port 46, and collide with the inner surface of the duct. The length does not reach the vent 47 even if it is repeated several times.
  • the cross-sectional dimensions of the exhaust duct 48, the position and area of the vent 47 are set as appropriate so that the exhaust efficiency is optimized in consideration of the position of the electrical components arranged in the box body 40, the heat generation amount, and the like. It goes without saying that it is done.
  • a recess 50 on one side and a projection 51 on the other are integrally formed between the exhaust duct 48 and the exhaust duct mounting portion of the box body 40. When assembled to the box body 40, they are configured to be fitted to each other.
  • the separate air conditioner 1 in the outdoor unit 3, either the high-pressure liquid refrigerant or the high-temperature high-pressure gas refrigerant adjusted by the compressor 33, the outdoor heat exchanger 31, a four-way switching valve (not shown) or the like is connected to the refrigerant pipe 4.
  • the indoor unit 2 the refrigerant and the indoor air circulated by the indoor fan 25 are heat-exchanged by the indoor heat exchanger 24, and the air is cooled or heated and blown out into the room. Therefore, cooling or heating is performed.
  • the outdoor unit 3 is usually installed outdoors and exposed to wind and rain.
  • the control box 34 provided inside the outdoor unit 3 generally has a machine room in the housing 30. It is arranged directly under the top plate of 30B and is not directly exposed to wind and rain.
  • the heat generating electrical parts such as the inverter power module, capacitor, inductor and the like are arranged. In order to discharge the heat radiated from these electrical parts.
  • the ventilation path 44 is formed, and external air can be ventilated.
  • the ventilation of the outside air in the ventilation path 44 is such that the outside air taken in from the one end side of the box body 40 by the suction action when the outdoor fan 32 is driven and the outside air is circulated on the heat exchange chamber 30C side. This is achieved by exhausting to the heat exchange chamber 30C through the exhaust port 46 provided on the other end side. Thereby, the heat generated in the box body 40 is radiated to the outside, but when the air conditioner 1 is operated in rainy weather, rainwater sucked into the heat exchange chamber 30C is wound up by the outdoor fan 32, The water droplets flow backward from the exhaust port 46 and try to enter the control box 34.
  • the exhaust port 46 is provided with an exhaust duct 48 extended into the ventilation passage 44 of the box body 40, and further, the exhaust port 46 opened to face the partition plate 30A. Since the exhaust duct 48 and the vent 47 provided in the exhaust duct 48 form an exhaust system passage 49 bent in a crank shape, water droplets wound up by the outdoor fan 32 are applied to the partition plate 30A. Even if it collides and repels and enters the exhaust port 46, it reaches the air vent 47 and enters the box body 40 unless it collides with the inner surface of the exhaust passage 49 and repels several times. It is difficult.
  • the position, area, etc. of the vent 47 provided in the exhaust duct 48 can be arbitrarily set in consideration of the position of the electrical parts arranged in the box body 40, the amount of heat generation, etc.
  • the vent hole 47 By opening the vent hole 47 in the vicinity or reducing the opening area, the heat dissipation efficiency in the box body 40 and the cooling efficiency of the heat-generating components can be set optimally, and the heat dissipation efficiency and cooling efficiency can be increased.
  • the exhaust duct 48 at the exhaust port 46 the machine noise (compression) radiated from the machine room 30B to the heat exchange chamber 30C side through the ventilation system path (exhaust system path) 49 using the muffler effect. Machine noise) can be reduced.
  • the return portion 48A is provided at the attachment portion of the exhaust duct 48, water droplets that try to enter the box body 40 from the gap between the attachment portions of the exhaust duct 48 can be blocked by the return portion 48A. Accordingly, it is possible to almost completely prevent water droplets from entering the box body 40 from the ventilation system path (exhaust system path) 49, and to improve the quality and reliability of the product.
  • the exhaust duct 48 and the box body 40 are provided with a recess 50 on one side and a projection 51 on the other so as to be fitted to each other, thereby preventing erroneous assembly when the exhaust duct 48 is attached to the exhaust port 46. The direction of the vent 47 can be prevented from being reversed.
  • control box 34 is made of resin
  • control box 34 may be made of sheet metal.
  • the exhaust duct 48 is preferably made of resin from the viewpoint of ease of molding or the like, but is not limited to resin.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

L'invention porte sur une boîte de commande d'unité extérieure. La corrosion, la défaillance, et analogue, de composants électriques, tels qu'un tableau de commande, résultant de l'intrusion de gouttelettes, sont éliminées en empêchant les gouttelettes de s'écouler en retour par l'intermédiaire d'un conduit de système de ventilation et d'entrer dans la boîte de commande, et la qualité et la fiabilité d'un produit peuvent être améliorées. Une boîte de commande (34) d'une unité extérieure (3) est disposée au niveau d'une partie supérieure d'une salle de machine (30B) dans un boîtier (30), séparé par un panneau de séparation (30A) entre une chambre d'échange de chaleur (30C) et la salle de machine (30B) tout en s'étendant partiellement vers le côté de la chambre d'échange de chaleur (30C), une ouverture d'évacuation (46), s'ouvrant à l'opposé du panneau de séparation (30A) dans la chambre d'échange de chaleur (30C), étant disposée sur un côté d'extrémité d'un conduit de ventilation (44) formé dans la boîte de commande (34), et un conduit d'évacuation (48), s'étendant à travers la boîte de commande (34) et possédant un évent (47) s'ouvrant en direction du conduit de ventilation (44) au niveau de son extrémité, étant disposé au niveau de l'ouverture d'évacuation (46).
PCT/JP2009/051790 2008-02-20 2009-02-03 Boîte de commande d'unité extérieure WO2009104471A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09713516.4A EP2244024A4 (fr) 2008-02-20 2009-02-03 Boîte de commande d'unité extérieure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-039241 2008-02-20
JP2008039241A JP2009198064A (ja) 2008-02-20 2008-02-20 室外機のコントロールボックス

Publications (1)

Publication Number Publication Date
WO2009104471A1 true WO2009104471A1 (fr) 2009-08-27

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PCT/JP2009/051790 WO2009104471A1 (fr) 2008-02-20 2009-02-03 Boîte de commande d'unité extérieure

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EP (1) EP2244024A4 (fr)
JP (1) JP2009198064A (fr)
WO (1) WO2009104471A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011052898A (ja) * 2009-09-02 2011-03-17 Mitsubishi Heavy Ind Ltd 室外機用電装箱
WO2014034564A1 (fr) * 2012-08-27 2014-03-06 株式会社 東芝 Unité d'extérieur pour un dispositif de conditionnement d'air
US20170130975A1 (en) * 2015-11-09 2017-05-11 Carrier Corporation Climate Control Outdoor Unit with Inverter Cooling
TWI600863B (zh) * 2014-10-14 2017-10-01 三菱電機股份有限公司 除濕機
CN112432251A (zh) * 2020-11-18 2021-03-02 广东美的暖通设备有限公司 空调室外机

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JP6053636B2 (ja) * 2013-08-07 2016-12-27 三菱電機株式会社 空気調和機の室外機及び空気調和機の室外機の製造方法
JP6223262B2 (ja) * 2014-04-04 2017-11-01 三菱電機株式会社 空気調和機の室外機
US10480799B2 (en) * 2015-02-17 2019-11-19 Mitsubishi Electric Corporation Outdoor unit
KR101727413B1 (ko) * 2015-12-08 2017-04-14 엘지전자 주식회사 공기 조화기의 에어가이드
CN109716034B (zh) * 2016-09-27 2021-03-19 三菱电机株式会社 空调机的室外机及空调机
WO2018167928A1 (fr) * 2017-03-16 2018-09-20 三菱電機株式会社 Appareil de pompe à chaleur
US10557638B2 (en) 2017-11-21 2020-02-11 Haier Us Appliance Solutions, Inc. Fan assembly for a packaged terminal air conditioner unit
CN109442596A (zh) * 2018-12-27 2019-03-08 广东志高暖通设备股份有限公司 电控盒盖、电控盒组件及空调室外机
DE112019006768T5 (de) * 2019-01-30 2021-10-07 Mitsubishi Electric Corporation Außeneinheit und Klimaanlage
CN213983806U (zh) * 2020-11-23 2021-08-17 广东积微科技有限公司 一种空调电控箱和具有其的空调器

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JP2003056865A (ja) * 2001-08-09 2003-02-26 Toshiba Kyaria Kk 空気調和機の室外ユニット
JP2004239532A (ja) * 2003-02-06 2004-08-26 Toshiba Kyaria Kk 空気調和機の室外ユニット
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011052898A (ja) * 2009-09-02 2011-03-17 Mitsubishi Heavy Ind Ltd 室外機用電装箱
WO2014034564A1 (fr) * 2012-08-27 2014-03-06 株式会社 東芝 Unité d'extérieur pour un dispositif de conditionnement d'air
TWI600863B (zh) * 2014-10-14 2017-10-01 三菱電機股份有限公司 除濕機
US20170130975A1 (en) * 2015-11-09 2017-05-11 Carrier Corporation Climate Control Outdoor Unit with Inverter Cooling
US10928080B2 (en) * 2015-11-09 2021-02-23 Carrier Corporation Climate control outdoor unit with inverter cooling
CN112432251A (zh) * 2020-11-18 2021-03-02 广东美的暖通设备有限公司 空调室外机

Also Published As

Publication number Publication date
EP2244024A1 (fr) 2010-10-27
JP2009198064A (ja) 2009-09-03
EP2244024A4 (fr) 2017-01-25

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