EP1500882B1 - Ausseneinheit für eine Klimaanlage - Google Patents

Ausseneinheit für eine Klimaanlage Download PDF

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Publication number
EP1500882B1
EP1500882B1 EP04016998A EP04016998A EP1500882B1 EP 1500882 B1 EP1500882 B1 EP 1500882B1 EP 04016998 A EP04016998 A EP 04016998A EP 04016998 A EP04016998 A EP 04016998A EP 1500882 B1 EP1500882 B1 EP 1500882B1
Authority
EP
European Patent Office
Prior art keywords
unit
electronic module
outdoor
outdoor unit
main body
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.)
Expired - Fee Related
Application number
EP04016998A
Other languages
English (en)
French (fr)
Other versions
EP1500882A2 (de
EP1500882A3 (de
Inventor
Masanori Ogawa
Shigeo Suzuki
Norifumi Yoshitsubaki
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
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Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of EP1500882A2 publication Critical patent/EP1500882A2/de
Publication of EP1500882A3 publication Critical patent/EP1500882A3/de
Application granted granted Critical
Publication of EP1500882B1 publication Critical patent/EP1500882B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F24F1/22—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
    • 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 an air conditioner; and, more particularly to an outdoor unit of a split type air conditioner.
  • the compressor and a control unit for controlling the compressor are installed in an outdoor unit of the air conditioner to operate a cooling cycle.
  • outdoor unit main body 100 includes at least compressor 110 having a compressor unit and a motor unit for driving the compressor unit, both of which are incorporated in a sealed vessel; outdoor radiator 120 for performing a heat exchange with the ambient air; and blower 130 for blowing the ambient air through the outdoor unit 100 for a heat exchange. All of these components, i.e., compressor 110, outdoor radiator 120 and blower 130 are incorporated in an outer frame body (not shown). Further, provided in an upper space of outdoor unit 100 is driving circuit unit 140 for driving the components of outdoor unit 100.
  • Driving circuit unit 140 includes a compressor control unit for controlling compressor 110, a blower control unit for controlling blower 130, cooling cycle control unit for controlling the cooling cycle, a wiring unit coupled to an indoor unit, and so forth. Among these components, the compressor control unit occupies most space of driving circuit unit 140.
  • the driving circuit for driving compressor 110 through an inverter control includes a converter circuit unit for converting a commercial AC power source into a DC; an inverter circuit unit for driving the motor unit of compressor 110 by way of converting the DC into a three-phase AC; a control circuit unit for controlling the converter circuit and the inverter circuit; and so forth.
  • control unit occupies a great volume of the outdoor unit, whereby a effective heat transfer area of the outdoor radiator is reduced, resulting in a deterioration of efficiency of the air conditioner.
  • an object of the present invention to provide an air conditioner including an outdoor unit with a reduced size and an increased effective heat transfer area of a radiator by way of efficiently disposing a scaled-down motor control unit, which is inverter-controlled by using a commercial AC power source, in the outdoor unit.
  • an outdoor unit of an air conditioner according to claim 1.
  • the electronic module operated by an inverter control using a commercial AC power source can be integrated within a housing to obtain a compact size and a water drip-proof structure. Further, since the electronic module can be independently disposed at any desired place within the outdoor unit, efficient use of the inner space of the outdoor unit is enabled and an effective heat transfer area of the outdoor radiator can be increased, thereby enhancing air conditioning efficiency.
  • the electronic module is disposed in an airflow path formed by the outdoor blower. Therefore, the electronic module can be efficiently cooled, thereby improving reliability of the circuit components within the electronic module.
  • the unit main body has a bottom plate, and the electronic module is mounted on the bottom plate.
  • the bottom plate can be utilized as a heat radiation plate of exothermic circuit elements within the electronic module, thereby further improving the reliability of the circuit components.
  • the electronic module is mounted on the bottom plate to be located below the compressor.
  • the electronic module is disposed in a dead water region of an airflow path formed by the outdoor blower. Therefore, efficient use of the inner space of the outdoor unit is enabled and a size-reduction of the outdoor unit can be achieved without deteriorating heat transfer efficiency.
  • the airflow path is formed by the outdoor blower with a bell mouth portion at least serving as an air guide, and the electronic module is installed at a peripheral portion of the bell mouth portion. Resultantly, efficient use of the inner space of the outdoor unit is enabled.
  • the outdoor blower includes a fan unit and a fan motor for driving the fan unit, and the electronic module is disposed at a rear side of the fan motor. Therefore, efficient use of the inner space of the outdoor unit is enabled, and a size reduction thereof can be achieved.
  • the electronic module includes a power supply terminal and the unit main body includes a side plate, wherein the electronic module is disposed on the side plate and the power supply terminal is disposed to be exposed to the outside of the outdoor unit. Accordingly, it becomes possible to use the side plate as a heat radiation plate of exothermic elements within the electronic module, which in turn enhances reliability of the circuit components. In addition, a connection of the power supply terminal to the outside gets easier.
  • FIG. 1 there is provided a cross sectional view of an electronic module in accordance with a first preferred embodiment of the present invention.
  • Electronic module main body 1 includes housing 5 formed by side plates 2, bottom plate 3 and ceiling plate 4.
  • housing 5 is a plurality of circuit components for driving a compressor.
  • the circuit components are accommodated by being grouped into three blocks: a converter circuit unit for converting a commercial AC power source into a DC, an inverter circuit unit for inverting a DC into an AC, and a control circuit unit.
  • Side plates 2, ceiling plate 4 and bottom plate 4 of housing 5 are made of, e.g., a metallic material having a high heat conductivity, and build up a water drip-proof structure.
  • diode 6 and circuit components 7 such as a capacitor and an inductor.
  • IGBT Insulated Gate Bipolar Transistor
  • control circuit components such as a control signal generator and a microcomputer.
  • power supply terminal 11 of a commercial AC power source and output terminal 12 for supplying the power to the compressor.
  • circuit components diode 6, circuit component 7, IGBT device 8, driving circuit 9 and control circuit component 10.
  • Exothermic circuit elements such as diode 6 of the converter circuit unit and IGBT device 8 of the inverter circuit unit are located to face side plates 2, and thermal conductors 14 made of a material with a high heat conductivity are intervened between side plates 2 and the exothermic circuit elements. Thermal conductors 14 serve to emit the heat generated from diode 6 and IGBT device 8 to the outside.
  • adhesive resin layer 15 may be disposed closely adhered to the exothermic circuit elements, e.g., the IGBT device 8.
  • resin 16 is charged between the circuit components within housing 5, thereby insulating the circuit components (diode 6, circuit component 7, IGBT device 8, driving circuit 9, and control circuit component 10) from each other and, at the same time, obtaining vibration resistance and moisture resistance.
  • electronic module main body 1 has the water drip-proof structure by forming housing 5 as a sealed one body, reliability of the circuit components within electronic module main body 1 can be improved. Moreover, since the circuit components disposed in housing 5 are protected by resin 16 charged therebetween, insulating property and vibration resistance can be obtained. Therefore, it becomes possible to secure the reliability of the circuit components even in case they are directly mounted on a vibration-generating source such as a compressor.
  • electronic module main body 1 can be of any shape, e.g., a cylindrical shape or a rectangular parellelopiped shape, depending on its location in an outdoor unit.
  • Outdoor unit main body 30 includes casing 31, outdoor radiator 32, outdoor blower 33, and compressor 34.
  • Casing 31 is of a box shape formed by bottom plate 35, left and right side plates 36, front plate 37, rear plate 38 and ceiling plate 39.
  • Outdoor blower 33 has fan unit 40 and fan motor 41 for driving fan unit 40.
  • bell mouth 42 serving as an air-guiding opening.
  • Outdoor radiator 32 is installed in an L shape along left side plate 36 and rear plate 38, as show in Fig. 2A to obtain a predetermined heat transfer area. Further, compressor 34 is isolated from the airflow path by cover 43.
  • electronic module main body 1 shown in Fig. 1 for driving at least compressor 34 is mounted on bottom plate 35 of casing 31 as shown in Figs. 2A and 2B . Since reduction in the size of electronic module main body 1 can be readily achieved as described in Fig. 1 , it can be disposed at any available position on bottom plate 35. Further, though the exothermic elements such as diode 6 of the converter circuit unit and IGBT device 8 of the inverter circuit unit are disposed to face side plates 2 in electronic module main body 1 shown in Fig. 1 , the first preferred embodiment employs a configuration where the exothermic elements are mounted on bottom plate 3 of electronic module main body 1, which is in turn disposed on bottom plate 35 of casing 31.
  • bottom plate 35 with a large radiation area as a heat radiation plate of the exothermic elements in electronic module main body 1. Further, since the vicinity of bottom plate 35 of casing 31 forms the airflow path described above, electronic module main body 1 may be forcibly cooled down by the wind in the airflow path. As a result, the inner space of outdoor unit main body 30 can be efficiently utilized while improving the reliability of the circuit components.
  • parts other than electronic module main body 1 for driving compressor 34 e.g., electrical component for driving fan motor 41
  • electrical component 44 may be disposed at their conventional positions with further reduced sizes
  • the conventional problem that electrical component 44 reduces the effective heat transfer area of outdoor radiator 32 can be solved, thereby improving a radiation performance thereof and enhancing the efficiency of the air conditioner.
  • Figs. 3A and 3B illustrate a plan and a front view of an outdoor unit of another air conditioner in accordance with the first preferred embodiment of the present invention.
  • electronic module main body 1 is mounted on bottom plate 35 of casing 31 of outdoor unit main body 30, and compressor 34 is disposed on electronic module main body 1.
  • compressor 34 can be integrated as one body with electronic module main body 1, assembling outdoor unit main body 30 may become easier and more efficient. Furthermore, the integration of compressor 34 and electronic module main body 1 as one unit also eases the maintenance thereof.
  • FIGs. 4A and 4B there are illustrated a plan and a front view of an outdoor unit of an air conditioner in accordance with a second preferred embodiment of the present invention.
  • the distinctiveness of the second preferred embodiment resides in that electronic module main body 1 is disposed in a dead water region of an airflow path within outdoor unit main body 1, the airflow path being formed by outdoor blower 33.
  • the term 'dead water region' herein used refers to a region where a wind does not blow at all or hardly blows.
  • electronic module main body 1 is disposed at a peripheral portion of bell mouth 42 which is provided at front plate 37 of casing 31 to serve as an air guide.
  • the peripheral portion of bell mouth 42 which hardly involves a wind blow or features a very low wind velocity, forms a useless space in outdoor unit main body 30.
  • since electronic module main body 1 is disposed in this space it is possible to efficiently use the inner space of outdoor unit main body 30, thereby realizing a size reduction thereof.
  • an increase of an air flow resistance and a resultant increase of power consumption of fan motor 41 can be prevented.
  • a high velocity air current is formed in a rotation region of fan unit 40, i.e., a peripheral portion of bell mouth 42. Accordingly, if a desired fin unit is installed at a part of housing 5 of electronic module main body 1 where the high velocity air current flows, it may serve to facilitate a radiation of exothermic circuit elements.
  • a plan and a front view of an outdoor unit of another air conditioner in accordance with the second preferred embodiment.
  • electronic module main body 1 is disposed at a rear plate 38 side of fan motor 41.
  • the region around the rear plate 38 side of fan motor 41 is an area where a wind suctioned by fan unit 40 does not blow, forming a useless space in outdoor unit main body 30.
  • electronic module main body 1 is disposed in this region, thereby enabling an efficient use of the inner space of outdoor unit main body 30 while realizing a size reduction thereof.
  • a high velocity air current suctioned by fan unit 40 is formed around an outer peripheral portion of fan motor 41. Accordingly, if a desired fin unit is installed at a part of housing 5 of electronic module main body 1 in a manner that it corresponds to the high velocity current area, it may serve to facilitate a radiation of exothermic circuit elements.
  • Figs. 6A and 6B describe a plan and a front view of an outdoor unit of an air conditioner in accordance with a third preferred embodiment of the present invention.
  • electronic module main body 1 is mounted on side plate 36 of casing 31 of outdoor unit main body 30 to be located above compressor 34 with its power supply terminal 47 exposed to the outside. Accordingly, side plate 36 having a large area can be utilized as a heat radiation plate of exothermic circuit elements in electronic module main body 1. Furthermore, by disposing electronic module main body 1 near compressor 34, a wiring connection therebetween becomes easier. Still further, by way of installing power supply terminal 47 of electronic module main body 1 to be exposed to the outside, a connection between power supply terminal 30 and an external power source can be readily accomplished. Consequently, an efficient use of the inner space of outdoor unit main body 30 is enabled while improving reliability of circuit components.
  • the outdoor unit can improve air conditioning efficiency. Therefore, the outdoor unit of the present invention can be used in various split type air conditioners for use in household and commercial environment.

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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)

Claims (10)

  1. Außeneinheit einer Klimaanlage, enthaltend:
    einen Einheitshauptkörper (30),
    einen Außenkühler (32);
    ein Außengebläse (33);
    einen Kompressor (34) zum Komprimieren eines Kältemittels; und
    ein elektronisches Modul (1), das Schaltungskomponenten aufweist, die eine Stromwandlerschaltungseinheit zum Antreiben des Kompressors, eine Umrichterschaltungseinheit und eine Steuerschaltungseinheit enthalten;
    dadurch gekennzeichnet, dass das elektronische Modul (1) in einem dichten Gehäuse (5) mit einem tropfwassergeschützten Aufbau eingebaut ist,
    wobei Gießharz (16) zwischen die Schaltungskomponenten innerhalb des Gehäuses (5) gefüllt ist.
  2. Außeneinheit nach Anspruch 1, wobei das elektronische Modul (1) in einem von dem Außengebläse (33) erzeugten Luftströmungsweg angeordnet ist.
  3. Außeneinheit nach Anspruch 1, wobei der Einheitshauptkörper (30) eine Bodenplatte (35) aufweist und das elektronische Modul (1) auf der Bodenplatte (35) montiert ist.
  4. Außeneinheit nach Anspruch 3, wobei der Kompressor (34) oberhalb des elektronischen Moduls (1) angeordnet ist.
  5. Außeneinheit nach Anspruch 1, wobei das elektronische Modul (1) in einem Totwasserbereich eines von den Außengebläse (33) erzeugten Luftströmungsweges angeordnet ist.
  6. Außeneinheit nach Anspruch 5, wobei der Luftströmungsweg von dem Außengebläse (33) erzeugt wird, wobei ein trichterförmiger Abschnitt (42) wenigstens als eine Luftführung dient, und wobei das elektronische Modul (1) an einem Randabschnitt des trichterförmigen Abschnitts (42) installiert ist.
  7. Außeneinheit nach Anspruch 5, wobei das Außengebläse (33) eine Gebläseeinheit (40) und einen Gebläsemotor (41) zum Antreiben der Gebläseeinheit (40) enthält, wobei das elektronische Modul (1) an einer Rückseite des Gebläsemotors (41) angeordnet ist.
  8. Außeneinheit nach Anspruch 1, wobei der Einheitshauptkörper (1) eine Seitenplatte (36) aufweist und das elektronische Modul (1) einen Stromversorgungsanschluss (11) enthält, und wobei das elektronische Modul (1) an der Seitenplatte (36) angeordnet ist und der Stromversorgungsanschluss (11) so angeordnet ist, dass er zur Außenseite der Außeneinheit weist.
  9. Außeneinheit nach Anspruch 1, wobei eine wärmeabgebende Schaltung (6, 8), die die Umrichterschaltungseinheit und die Stromwandlerschaltungseinheit enthält, so angeordnet ist, dass sie einer Seitenplatte (2) des elektronischen Moduls (1) zugewandt ist.
  10. Außeneinheit nach Anspruch 9, wobei das elektronische Modul (1) einen Wärmeleiter (14) aufweist, der zwischen der Seitenplatte (2) und der exothermen Schaltung (8) eingefügt ist.
EP04016998A 2003-07-22 2004-07-19 Ausseneinheit für eine Klimaanlage Expired - Fee Related EP1500882B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003277431 2003-07-22
JP2003277431 2003-07-22

Publications (3)

Publication Number Publication Date
EP1500882A2 EP1500882A2 (de) 2005-01-26
EP1500882A3 EP1500882A3 (de) 2006-08-16
EP1500882B1 true EP1500882B1 (de) 2012-10-17

Family

ID=33487677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04016998A Expired - Fee Related EP1500882B1 (de) 2003-07-22 2004-07-19 Ausseneinheit für eine Klimaanlage

Country Status (3)

Country Link
EP (1) EP1500882B1 (de)
CN (1) CN1266423C (de)
ES (1) ES2397008T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11371738B2 (en) 2019-01-09 2022-06-28 Johnson Controls Tyco IP Holdings LLP Enclosure for a controller of an HVAC system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006214635A (ja) * 2005-02-03 2006-08-17 Daikin Ind Ltd 空気調和装置の室外ユニット
JP2006214633A (ja) * 2005-02-03 2006-08-17 Daikin Ind Ltd 空気調和装置の室外ユニット
EP1862743B1 (de) * 2005-02-03 2014-09-03 Daikin Industries, Ltd. Ausseneinheit für klimaanlage
JP2006214632A (ja) * 2005-02-03 2006-08-17 Daikin Ind Ltd 空気調和装置の室外ユニット
JP3821153B2 (ja) * 2005-02-03 2006-09-13 ダイキン工業株式会社 空気調和装置の室外ユニット
US20150059389A1 (en) * 2013-09-05 2015-03-05 Trane International Inc. System and apparatus for heating or cooling having fluid cooled electronics
JPWO2019106854A1 (ja) * 2017-11-28 2020-11-19 シャープ株式会社 室外機

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02110227A (ja) * 1988-10-19 1990-04-23 Matsushita Seiko Co Ltd 空気調和機

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
US5294195A (en) * 1992-11-02 1994-03-15 Carrier Corporation Cover for the outside enclosure of an air conditioning system
JP3322778B2 (ja) * 1995-08-22 2002-09-09 東芝キヤリア株式会社 空気調和機の室外ユニット
JP2000022209A (ja) 1998-06-30 2000-01-21 Kyocera Corp 半導体発光装置
JP4582972B2 (ja) 2001-08-09 2010-11-17 東芝キヤリア株式会社 空気調和機の室外ユニット
JP2003106573A (ja) * 2001-09-28 2003-04-09 Matsushita Electric Ind Co Ltd セパレート型空気調和機室外機の電装品収納箱
JP3858661B2 (ja) * 2001-10-10 2006-12-20 ダイキン工業株式会社 電装品箱および空気調和機

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02110227A (ja) * 1988-10-19 1990-04-23 Matsushita Seiko Co Ltd 空気調和機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11371738B2 (en) 2019-01-09 2022-06-28 Johnson Controls Tyco IP Holdings LLP Enclosure for a controller of an HVAC system

Also Published As

Publication number Publication date
EP1500882A2 (de) 2005-01-26
ES2397008T3 (es) 2013-03-04
EP1500882A3 (de) 2006-08-16
CN1576729A (zh) 2005-02-09
CN1266423C (zh) 2006-07-26

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