EP2146151B1 - Boîtier de composant électrique et appareil de conditionnement d'air fourni avec ledit boîtier - Google Patents

Boîtier de composant électrique et appareil de conditionnement d'air fourni avec ledit boîtier Download PDF

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Publication number
EP2146151B1
EP2146151B1 EP08738453.3A EP08738453A EP2146151B1 EP 2146151 B1 EP2146151 B1 EP 2146151B1 EP 08738453 A EP08738453 A EP 08738453A EP 2146151 B1 EP2146151 B1 EP 2146151B1
Authority
EP
European Patent Office
Prior art keywords
electrical component
component box
control substrate
air conditioner
substrate
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.)
Not-in-force
Application number
EP08738453.3A
Other languages
German (de)
English (en)
Other versions
EP2146151A4 (fr
EP2146151A1 (fr
Inventor
Tomohiro Sugimoto
Masanori Ogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Publication of EP2146151A1 publication Critical patent/EP2146151A1/fr
Publication of EP2146151A4 publication Critical patent/EP2146151A4/fr
Application granted granted Critical
Publication of EP2146151B1 publication Critical patent/EP2146151B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24F1/22—Arrangement or mounting thereof
    • 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
    • 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

Definitions

  • the present invention relates to an air conditioner and, more particularly, to an electrical component box for the air conditioner.
  • a conventional air conditioner is used with an electrical component box having a control substrate, on which a plurality of electrical components are mounted, to control the air conditioner (see, for example, Patent Document 1).
  • Fig. 6 is an exploded perspective view depicting an example of a construction of an electrical component box as disclosed in Patent Document 1.
  • the electrical component box 21 for an air conditioner includes substrate holders 22, 23 each having electrical components such as, for example, an inverter and the like, a printed wiring board 27 mounted horizontally on the substrate holder 22 so as to cover an upper surface thereof, and a printed wiring board 30 mounted vertically on the substrate holder 23 so as to cover a rear surface thereof.
  • the printed wiring board 27 includes a set of radiating fins 26 exposed on one side of the substrate holder 22 and having exothermic electronic elements 24, 25 mounted thereon that are cooled by a cooling fan, while the printed wiring board 30 includes a set of radiating fins 29 exposed on the rear surface side of the substrate holder 23 and having an exothermic electronic element 28 mounted thereon that is cooled by the cooling fan.
  • the substrate holders 22, 23 accommodate a reactor 31 therein such that an upper surface and a rear surface of the reactor 31 may be covered with the printed wiring board 27 and the printed wiring board 30, respectively.
  • An inverter control device for driving a motor has been also proposed to control an air conditioner (see, for example, Patent Document 2).
  • Fig. 7 is a block diagram of such an inverter control device.
  • a main circuit includes an AC power source 51, a diode bridge 52 for converting an AC power to a DC power, a reactor 61 having a small capacity less than 2mH, a capacitor 62 having a small capacity less than 100 ⁇ F, an inverter 53 for converting a DC power to an AC power, and a motor 54 driven with the AC power converted by the inverter 53.
  • a control circuit includes a motor voltage command preparing means 64 for preparing a voltage command value for each phase of the motor 54 depending on a speed command ⁇ * for the motor 54 given from outside, a PN voltage detecting means 65 for detecting a DC voltage value applied to the inverter 53, and a PN voltage predicting means 69 for calculating a predicted DC voltage value at a timing when the inverter 53 actually outputs a voltage.
  • the control circuit also includes a PN voltage correcting means 66 for first deriving a PN voltage correction factor by dividing a previously set DC voltage reference value of the inverter 53 by the predicted DC voltage value calculated by the PN voltage predicting means 69, and for subsequently setting, when the detected DC voltage value is less than zero, a previously set maximum value of the PN voltage correction factor to the PN voltage correction factor.
  • the control circuit further includes a motor voltage command correcting means 67 for correcting the voltage command value for each phase by multiplying the voltage command value for each phase, prepared by the motor voltage command preparing means 64, by the PN voltage correction factor outputted from the PN voltage correcting means 66, and a PWM control means 68 for producing a PWM signal for the inverter 53 so that a motor voltage command correction value obtained by the motor voltage command correcting means 67 may be applied to the motor 54.
  • a motor voltage command correcting means 67 for correcting the voltage command value for each phase by multiplying the voltage command value for each phase, prepared by the motor voltage command preparing means 64, by the PN voltage correction factor outputted from the PN voltage correcting means 66
  • PWM control means 68 for producing a PWM signal for the inverter 53 so that a motor voltage command correction value obtained by the motor voltage command correcting means 67 may be applied to the motor 54.
  • the use of the small-capacity capacitor and the small-capacity reactor realizes a small-sized, lightweight, and inexpensive inverter control device for drive of the motor, with which even if the motor drive becomes difficult or impossible due to considerable changes in inverter DC voltage, the inverter is operated to make the voltage applied to the motor substantially constant, thereby making it possible to ensure the motor drive.
  • JP 2000-074422A addresses the problem of providing a controller for air-conditioner where a plurality of control substrates can be mounted in small space with superior working efficiency.
  • a controller of air-conditioner is provided with a first control unit that has a first control substrate being accommodated in a lower cover, and a second control unit that has a second control substrate being arranged at the upper part of the first control unit.
  • the control device has an engagement hole being provided in the first control unit and an engagement projection being provided in the second control unit, and fixes both the control units.
  • the present invention has been developed to overcome the above-described disadvantages.
  • the electrical component box for an air conditioner according to the present invention is an electrical component box according to claim 1.
  • Preferred embodiments are defined in the dependent claims.
  • an air conditioner comprising an electrical component box according to claims 1 to 3 is proposed in claim 4.
  • the size of the electrical component box for an air compressor be reduced, but the size of the air conditioner can also be reduced.
  • the electrical component box for an air conditioner includes a first control substrate having an exothermic element mounted thereon, a first substrate holder disposed above a partition plate, which partitions a compressor and a cooling fan from each other, to hold the first control substrate, a second control substrate having a non-exothermic element mounted thereon, a second substrate holder disposed generally perpendicular to the first substrate holder or generally horizontally on a compressor side with respect to the partition plate to hold the second control substrate, and a set of radiating fins mounted on the first control substrate so as to protrude therefrom on a fan side with respect to the partition plate.
  • This construction can reduce the size of an electrical component box.
  • the second substrate holder according to the first aspect of the invention has a slot defined therein into which the second control substrate is inserted.
  • the electrical component box according to the previous aspects further includes a reactor mounted on the second control substrate. This construction can reduce the size of the electrical component box.
  • an air conditioner including the electrical component box according to any one of the previous aspects of the invention. According to this aspect of the invention, the size of the air conditioner can be reduced.
  • Fig. 1 is an exploded perspective view depicting a construction of an electrical component box for an air conditioner according to a first embodiment of the present invention.
  • the electrical component box 1 is integrally formed of a resinous material and includes a substrate holder 2 constituting a first substrate holder, and a substrate holder 3 constituting a second substrate holder and extending in a direction generally perpendicular to the substrate holder 2 (substantially vertically downwardly).
  • a control substrate 4 constituting a first control substrate includes a plurality of electrical components mounted thereon and including an exothermic element 5, and is mounted on the substrate holder 2.
  • a set of radiating fins 6 are mounted on the control substrate 4 to radiate heat emitted from the exothermic element 5.
  • the exothermic element is an element that gives rise to a considerable power loss and heat generation incidental thereto and, hence, requires radiating fins for cooling.
  • Exothermic elements include a diode for use in a rectifying circuit that constitutes an inverter control device for a motor required to drive an air conditioner to convert an AC power to a DC power, as disclosed in Patent Document 2, an IGBT for use in an inverter circuit for converting a DC power to an AC power, and the like.
  • a control substrate 7 constituting a second control substrate includes a reactor 9 and a plurality of electrical elements mounted thereon and including no exothermic elements (electrical elements not producing much heat and requiring no radiating fins, or non-exothermic elements).
  • This control substrate 7 is inserted into a slot 8 defined in the substrate holder 3. Because of this, the control substrate 4 and the control substrate 7 are arranged generally perpendicular to each other.
  • Fig. 2 is a front view of an outdoor unit 10 of an air conditioner provided with the electrical component box according to this embodiment.
  • the outdoor unit 10 accommodates a compressor 11 and a cooling fan 12 therein, and the compressor 11 and the cooling fan 12 are separated by a vertically extending partition plate 13.
  • the electrical component box 1 is disposed above the partition plate 13 within the outdoor unit 10.
  • the control substrate 7 is disposed in a compressor side compartment with respect to the partition plate 13 so as to extend parallel to the partition plate 13.
  • the radiating fins 6 protrude downwardly through an opening 15 defined in the substrate holder 2 within a fan side compartment with respect to the partition plate 13. Accordingly, radiation from the radiating fins 6 is promoted by the cooling fan 12 driven by a fan motor 14.
  • control substrate 4 the control substrate 7, the compressor 11, and the fan motor 14 are connected to one another by a wire harness or the like.
  • control substrate 4 and the control substrate 7 are disposed generally perpendicular to each other, and the reactor 9 is mounted on the control substrate 7.
  • This construction can reduce the size of the whole electrical component box, thereby making it possible to locate the electrical component box 1 at a position not interfering with the compressor 11 or the cooling fan 12.
  • the outdoor unit 10 can be reduced in size.
  • control substrate 7 is attached to the electrical component box 1 by inserting the former into the slot 8 in the latter, attachment of the control substrate 7 is easy.
  • Fig. 3 is an exploded perspective view depicting a construction of an electrical component box for an air conditioner according to a second embodiment of the present invention.
  • like parts are designated by like reference numerals, and explanation thereof is omitted.
  • the electrical component box 101 is integrally formed of a resinous material and includes a substrate holder 102 constituting a first substrate holder, and a substrate holder 103 constituting a second substrate holder and extending in a direction generally parallel to the substrate holder 102.
  • a control substrate 104 constituting a first control substrate includes a plurality of electrical components mounted thereon and including an exothermic element 5, and is mounted on the substrate holder 102.
  • a set of radiating fins 6 are mounted on the control substrate 104 to radiate heat emitted from the exothermic element 5.
  • a control substrate 107 constituting a second control substrate includes a reactor 9 and a plurality of electrical elements mounted thereon and including no exothermic elements. This control substrate 107 is inserted into a slot 108 defined in the substrate holder 103. Because of this, the control substrate 104 and the control substrate 107 are both arranged generally horizontally. As described above, because the reactor 9 can be reduced in size and weight, it can be readily attached to the control substrate 107.
  • control substrate 104 and the control substrate 107.
  • high lead elements such as, for example, capacitors, reactors, and the like are mounted on the control substrate 104 and the control substrate 107.
  • control substrate 104 and the control substrate 107 are both attached to the electrical component box 101 such that an element surface of the former on which the lead elements are mounted and an element surface of the latter on which the lead elements are mounted are opposed to each other and, hence, all the lead elements mounted on the two control substrates 104, 107 are positioned so as not to be in contact with each other.
  • control substrate 104 In applications where a single-sided substrate is used for the control substrate 104, and surface-mount elements such as a microcomputer 117 and the like are mounted on the control substrate 104, a space is created on a surface (lead element surface) opposite to the surface on which the surface-mount elements are mounted.
  • the control substrate 107 By designing the control substrate 107 such that the high elements mounted thereon and including the reactor 9 are positioned in such a space, the control substrates can be efficiently accommodated in the electrical component box 101.
  • Fig. 4 is a front view of an outdoor unit 10 of an air conditioner provided with the electrical component box 101 according to this embodiment.
  • the outdoor unit 10 accommodates a compressor 11 and a cooling fan 12 therein, and the compressor 11 and the cooling fan 12 are separated by a vertically extending partition plate 13.
  • the electrical component box 101 is disposed above the partition plate 13 within the outdoor unit 10.
  • the control substrate 107 is disposed in a compressor side compartment with respect to the partition plate 13.
  • the radiating fins 6 protrude downwardly through an opening 15 defined in the substrate holder 102 within a fan side compartment with respect to the partition plate 13. Accordingly, radiation from the radiating fins 6 is promoted by the cooling fan 12 driven by a fan motor 14.
  • control substrate 104 the control substrate 107, the compressor 11, and the fan motor 14 are connected to one another by a wire harness or the like.
  • control substrate 104 and the control substrate 107 are disposed generally horizontally, and the reactor 9 is mounted on the control substrate 107.
  • This construction can reduce the size of the whole electrical component box, thereby making it possible to locate the electrical component box 101 at a position not interfering with the compressor 11 or the cooling fan 12.
  • the electrical component box 101 can be efficiently accommodated within a space delimited by the compressor 11, the partition plate 13, and a rear surface (not shown) and a side surface 16 of the outdoor unit 10, the size of the outdoor unit 10 can be reduced.
  • control substrate 107 is attached to the electrical component box by inserting the former into the slot 108 in the latter, attachment of the control substrate 107 is easy.
  • Fig. 5 is a front view of an outdoor unit 10 of an air conditioner provided with the electrical component box according to this example.
  • the electrical component box 17 constituting a first substrate holder and a fixing plate 18 constituting a second substrate holder are separated from each other.
  • the electrical component box 17 is disposed above the partition plate 13, while the fixing plate 18 is placed on the partition plate 13 on the side of the compressor 11.
  • the electrical component box 17 By arranging the electrical component box 17 above the partition plate 13 and arranging a control substrate 7 on a side surface of the partition plate 13 in the aforementioned manner, not only can the size of the electrical component box 17 be reduced, but the electrical component box 17 and the control substrate 7 can also be efficiently accommodated within a space delimited by the compressor 11, the partition plate 13, and a rear surface (not shown) and a side surface 16 of the outdoor unit 10, thereby making it possible to reduce the size of the outdoor unit 10.
  • the electrical component box according to the present invention can be reduced in size, it can be effectively utilized as an electrical component box for an air conditioner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Inverter Devices (AREA)

Claims (4)

  1. Boîtier de composants électriques (1, 17, 101) pour un climatiseur qui inclut un compresseur (11) et un ventilateur de refroidissement (12) séparés l'un de l'autre par une plaque de séparation (13), ledit boîtier de composants électriques (1, 17, 101) comprenant:
    un premier substrat de commande (4, 104) ayant un élément exothermique (5) monté sur celui-ci;
    un premier support de substrat (2, 102) disposé au-dessus de la plaque de séparation (13) pour maintenir le premier substrat de commande (4, 104);
    un deuxième support de substrat (3, 103) disposé généralement perpendiculairement au premier support de substrat (2, 102) ou généralement horizontalement sur un côté compresseur par rapport à la plaque de séparation (13) pour maintenir un deuxième substrat de commande (7, 107);
    un ensemble d'ailettes rayonnantes (6) monté sur le premier substrat de commande (4, 104) de manière à faire saillie à partir de celui-ci sur un côté ventilateur par rapport à la plaque de séparation (13);
    caractérisé en ce que
    le premier support de substrat (2, 102) est formé d'un seul tenant avec le deuxième support de substrat (4, 104), et
    le deuxième substrat de commande (7, 107) n'ayant que des éléments non exothermiques, qui ne nécessitent pas de refroidissement par des ailettes rayonnantes, montés sur celui-ci.
  2. Boîtier de composants électriques (1, 17, 101) pour un climatiseur selon la revendication 1, dans lequel un réacteur (9) est monté sur le deuxième substrat de commande (7, 107).
  3. Boîtier de composants électriques (1, 17, 101) pour un climatiseur selon l'une quelconque des revendications précédentes, dans lequel le deuxième support de substrat (3, 103) a une fente (8, 108) définie dans celui-ci dans laquelle le deuxième substrat de commande (7, 107) est inséré.
  4. Climatiseur comprenant un compresseur (11) et un ventilateur (14) séparés par une paroi de séparation (13) et le boîtier de composants électriques (1, 17, 101) selon l'une quelconque des revendications 1 à 3.
EP08738453.3A 2007-04-09 2008-04-01 Boîtier de composant électrique et appareil de conditionnement d'air fourni avec ledit boîtier Not-in-force EP2146151B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007101528 2007-04-09
PCT/JP2008/000841 WO2008126390A1 (fr) 2007-04-09 2008-04-01 Boîtier de composant électrique pour appareil de conditionnement d'air et appareil de conditionnement d'air fourni avec le boîtier de composant électrique

Publications (3)

Publication Number Publication Date
EP2146151A1 EP2146151A1 (fr) 2010-01-20
EP2146151A4 EP2146151A4 (fr) 2013-07-24
EP2146151B1 true EP2146151B1 (fr) 2018-10-17

Family

ID=39863550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08738453.3A Not-in-force EP2146151B1 (fr) 2007-04-09 2008-04-01 Boîtier de composant électrique et appareil de conditionnement d'air fourni avec ledit boîtier

Country Status (5)

Country Link
EP (1) EP2146151B1 (fr)
JP (1) JPWO2008126390A1 (fr)
CN (1) CN101680669B (fr)
MY (1) MY169630A (fr)
WO (1) WO2008126390A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4306868A4 (fr) * 2021-04-14 2024-09-18 Mitsubishi Heavy Industries Thermal Systems, Ltd. Unité d'extérieur
US12532439B2 (en) 2022-01-11 2026-01-20 Carrier Corporation Mechanical enclosure

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JP5849396B2 (ja) * 2011-01-31 2016-01-27 株式会社富士通ゼネラル 空気調和機の室外機
JP5873994B2 (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
JP2014096968A (ja) * 2012-11-12 2014-05-22 Murata Mfg Co Ltd インバータ装置
CN103822315B (zh) * 2012-11-16 2016-07-13 珠海格力电器股份有限公司 空调室外机
KR102166764B1 (ko) 2013-10-10 2020-10-19 삼성전자주식회사 컨트롤박스 및 이를 포함하는 공기조화기의 실외기
JP6333108B2 (ja) * 2014-08-04 2018-05-30 三菱電機株式会社 空気調和機の熱源側ユニット
CN204335267U (zh) * 2015-01-05 2015-05-13 广东美的制冷设备有限公司 空调器及其电控盒组件
BR112018001446A2 (pt) * 2015-07-31 2018-09-11 Hitachi-Johnson Controls Air Conditioning, Inc. unidade externa para ar condicionado, e ar condicionado
WO2017077647A1 (fr) 2015-11-06 2017-05-11 三菱電機株式会社 Unité extérieure et climatiseur utilisant ladite unité
AU2016395713B2 (en) * 2016-03-04 2019-06-20 Mitsubishi Electric Corporation Electrical Component module, and outdoor unit of air-conditioning apparatus
CN207019199U (zh) * 2016-03-14 2018-02-16 三菱电机株式会社 空调机的室外机
JPWO2018062170A1 (ja) * 2016-09-27 2019-01-10 三菱電機株式会社 空気調和機の室外機および空気調和機
CN106793690B (zh) * 2016-12-19 2019-11-26 四川长虹空调有限公司 变频空调散热器结构
JP6833014B2 (ja) * 2017-03-28 2021-02-24 三菱電機株式会社 冷凍サイクル装置
JP6882716B2 (ja) * 2017-04-28 2021-06-02 株式会社富士通ゼネラル 空気調和機の室外機
JP2018189263A (ja) * 2017-04-28 2018-11-29 株式会社富士通ゼネラル 空気調和機の室外機
WO2020075266A1 (fr) * 2018-10-11 2020-04-16 三菱電機株式会社 Unité extérieure
US11339977B2 (en) 2019-09-06 2022-05-24 Carrier Corporation Apparatus and method for providing adequate cooling inside an electrical equipment
CN116406129A (zh) 2022-01-06 2023-07-07 开利公司 用于功率电子器件冷却的散热器

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4306868A4 (fr) * 2021-04-14 2024-09-18 Mitsubishi Heavy Industries Thermal Systems, Ltd. Unité d'extérieur
AU2022257636B2 (en) * 2021-04-14 2025-06-26 Mitsubishi Heavy Industries Thermal Systems, Ltd. Outdoor unit
US12532439B2 (en) 2022-01-11 2026-01-20 Carrier Corporation Mechanical enclosure

Also Published As

Publication number Publication date
MY169630A (en) 2019-04-24
WO2008126390A1 (fr) 2008-10-23
EP2146151A4 (fr) 2013-07-24
CN101680669A (zh) 2010-03-24
CN101680669B (zh) 2012-06-13
JPWO2008126390A1 (ja) 2010-07-22
EP2146151A1 (fr) 2010-01-20

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