EP2840326A1 - Unité extérieure de climatiseur - Google Patents

Unité extérieure de climatiseur Download PDF

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Publication number
EP2840326A1
EP2840326A1 EP14175373.1A EP14175373A EP2840326A1 EP 2840326 A1 EP2840326 A1 EP 2840326A1 EP 14175373 A EP14175373 A EP 14175373A EP 2840326 A1 EP2840326 A1 EP 2840326A1
Authority
EP
European Patent Office
Prior art keywords
engaging holes
water
gutter member
engaging
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.)
Withdrawn
Application number
EP14175373.1A
Other languages
German (de)
English (en)
Inventor
Wataru Ichikizaki
Hiroyuki Yamada
Masashi Tokorotani
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.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP2840326A1 publication Critical patent/EP2840326A1/fr
Withdrawn legal-status Critical Current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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
    • 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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
    • F24F1/58—Separate protective covers for outdoor units, e.g. solar guards, snow shields or camouflage
    • 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 air conditioner outdoor unit with a service panel detachably attached to a maintenance inspection opening provided in the casing.
  • PTL 1 discloses a configuration in which engaging claws provided on a service panel are engaged with engaging holes provided at multiple positions of a back panel, and then the service panel is fixed at one position with a fixing screw to the back panel so as to be detachable.
  • PTL 2 discloses a configuration in which engaging holes are provided at multiple upper and lower positions of side edge flanges of a front panel and a side panel, and while engaging claws provided at corresponding multiple positions of a service panel are inserted into the respective engaging holes, the service panel is moved upward in two steps to engage upper ends of the engaging claws with upper end edges of the respective engaging holes, and the service panel is detachably held to the casing at this position through a fixing means.
  • the service panel fixed by the claw fixing method can be more efficiently attached and detached compared with a service panel entirely fixed with screws.
  • the claw fixing method when the claw fixing method is used, as the engaging hole has to be larger than the engaging claw, rainwater can seep through the gap of the engaging hole after the service panel is mounted.
  • the machine room which communicates with a heat exchanger room and is at a negative pressure due to the suction action of the fan, is prone to seepage of rainwater through the engaging hole, and there is a concern that this rainwater may spatter on the electrical components susceptible to water seepage and cause troubles such as malfunction and control failure.
  • each hole is provided with a waterproofing measure such as attaching an insulation sheet to the engaging hole to block the gap.
  • a waterproofing measure such as attaching an insulation sheet to the engaging hole to block the gap.
  • the present invention has been made in view of these circumstances, and aims to provide an air conditioner outdoor unit in which a service panel fixed by the claw fixing method is provided with a permanent waterproofing measure which, even when rainwater seeps through the engaging hole, can treat the rainwater without affecting the internal parts and which can be realized in a simple and inexpensive configuration.
  • an air conditioner outdoor unit of the present invention has adopted the following solutions:
  • an air conditioner outdoor unit in which a maintenance inspection opening is provided on one side of exterior panels of the casing, and a service panel is detachably attached to the opening by having engaging claws engaged with multiple upper and lower engaging holes provided in an opening-side edge of the exterior panel, wherein a gutter member which extends in the vertical direction and covers the back side of the multiple engaging holes is provided on the back side of the opening-side edge in which the multiple engaging holes are provided, so that water seeping through the engaging holes is caused to flow down along the gutter member and the water can be drained at a lower position where the water is at least unlikely to spatter on the internal parts susceptible to water seepage.
  • the waterproofing measure requires only the provision of one gutter member which extends across the multiple upper and lower engaging holes in the vertical direction on the back side of these engaging holes, it is possible to simplify the waterproof structure and facilitate its assembly work, and to realize an inexpensive permanent waterproofing measure.
  • the gutter member may be a member which forms a space of any shape and size on the back side of the engaging holes which allows the seeping water to flow down.
  • the configuration of the gutter member itself can be made simple and inexpensive.
  • the gutter member may be made of a steel plate or a resin plate.
  • the gutter member may be extended to a position immediately above a drain pan which is formed on a bottom surface of the casing.
  • the rainwater seeping through the multiple engaging holes can be guided by the gutter member to above the drain pan and drained.
  • the lower end of the gutter member may be closed by a closing member at a position below the engaging hole located at a lowermost position so that the seeping water flowing down is drained from the engaging hole located at the lowermost position.
  • the closing member may be of a closed-cell foamed resin material.
  • the present invention although rainwater can seep through the claw engaging hole since the service panel is fixed by the claw fixing method which allows efficient attaching/detaching of the service panel, it is possible to receive the rainwater, even if it seeps, by the gutter member, which extends in the vertical direction and is provided on the back side of the engaging hole, and cause the water to flow downward along the gutter member and drain it to the inside or the outside of the casing at a lower position where the water is unlikely to spatter on the electrical components, etc. susceptible to water seepage. Thus, it is possible to prevent the situation where the water seeping through the engaging holes spatters on the electrical components, etc. susceptible to water seepage, and to solve the troubles arising from this situation.
  • the waterproofing measure requires only the provision of one gutter member which extends across the multiple upper and lower engaging holes in the vertical direction on the back side of these engaging holes, it is possible to simplify the waterproof structure and facilitate its assembly work to realize an inexpensive permanent waterproofing measure.
  • Fig. 1 is a perspective view of an air conditioner outdoor unit according to the one embodiment of the present invention
  • Fig. 2 is an exploded perspective view of a service panel and a rear panel for fixing the service panel of the outdoor unit.
  • An outdoor unit 1 includes a casing 8 which is covered by exterior panels such as a base panel 3 having installation legs 2, a front panel 5 provided with two blowout grilles 4, one at each of upper and lower positions, a rear panel 6 including a part of the right-side face, and an upper panel 7 covering the upper faces of these panels.
  • a suction grille is formed in a part of the back face and the left-side face of the casing 8.
  • the inside of the casing 8 is partitioned into the heat exchange room side and the machine room side.
  • an outdoor heat exchanger, an outdoor air blower, etc. (not shown) are disposed, while on the machine room side, a compressor, a control box, and other outdoor-side devices are disposed.
  • a maintenance inspection opening 9 is provided at a corner part of the front panel 5 from the front face to the side face of the casing 8, and a service panel 10 is detachably installed so as to cover the opening 9.
  • the service panel 10 is a panel bent such that a front-face side 10A and a side-face side 10B form an L-shaped cross-section, and is provided with a handhole 11 at a roughly central position in the vertical direction of the front-face side 10A.
  • the service panel 10 is fixed by having engaging claws 13 engaged with engaging holes 12 provided in opening-side edges 5A and 6A of the front panel 5 and the rear panel 6, at multiple positions at left and right ends (in this example, three positions on each of the left and right ends) of the service panel 10 in the vertical direction, and the service panel 10 is further fixed with screws 14 at one position at each of the upper and lower ends such that the service panel 10 is detachable from the side edges 5A and 6A.
  • a side edge portion 6B of a predetermined width which is bent to the side face into a crank shape, and an overlap portion 6C are formed on the opening-side edge 6A of the rear panel 6, and the engaging holes 12 for the engaging claws 13 are provided at even intervals at three positions in the vertical direction of the side edge portion 6B.
  • This engaging hole 12 is a vertically elongated slit-like hole, and the upper half of the engaging hole is gradually narrowed into a wedge shape.
  • a handhole 15 is also provided on the back side of the rear panel 6 at a position corresponding to the handhole 11 of the service panel 10.
  • the engaging claws 13 are provided on the end edge of the side-face side 10B of the service panel 10 at even intervals at three positions in the vertical direction corresponding to the engaging holes 12 provided at three positions of the rear panel 6.
  • This engaging claw 13 includes: a base portion protruding in parallel from the end edge of the service panel 10; a claw portion extending upward from the base portion by a predetermined dimension; and a groove portion provided between the claw portion and the end edge and having a thickness equivalent to the plate thickness of the rear panel 6, and the height dimension of the claw portion including the base portion is smaller than the length dimension of the slit-like engaging hole 12 by a predetermined dimension.
  • the engaging holes 12 and the engaging claw 13 have the configuration in which the multiple upper and lower engaging claws 13 provided on the service panel 10 are inserted into the multiple engaging holes 12 provided in the rear panel 6, and then the service panel 10 is slid upward by a predetermined dimension (e.g., approximately 10 mm) so as to engage the groove portions having a thickness equivalent to the plate thickness of the rear panel 6 provided in the engaging claws 13 with the upper halves of the engaging holes 12 which are gradually narrowed into a wedge shape.
  • the engaging holes 12 and the engaging claws 13 can be thereby engaged without looseness between them.
  • the service panel 10 is also provided with engaging claws (not shown) similar to those described above at three positions in the vertical direction corresponding to the part connected with the front panel 6, and provided with similar engaging claws 13 on the side edge of an extended portion 10C toward a lower part of the front panel 6. These engaging claws can be engaged with engaging holes (not shown) similar to those described above provided in the front panel 6 in a similar manner as described above without looseness between them.
  • the engaging claws 13 provided at left and right ends of the service panel 10 at multiple positions in the vertical direction are engaged with the engaging holes 12 provided in the front panel 5 and the rear panel 6 at multiple upper and lower positions, and then the service panel is fixed with a screw 14 at one position at each of the upper and lower ends.
  • the service panel 10 can be thereby detachably mounted. This service panel 10 can be easily removed by removing the screws 14 at two positions and then sliding the service panel 10 downward to disengage the engaging claws 13 from the engaging holes 12.
  • the service panel 10 which is provided at the opening 9 between the front panel 5 and the rear panel 6 of the outdoor unit 1 is detachably installed by the claw fixing method. Therefore, rainwater can seep through the gap of the engaging hole 12, with which the engaging claw 13 is engaged, to the machine room, and there is a possibility of spattering of this rainwater on the control box or the electrical components disposed inside the machine room. The following configuration has been adopted to prevent this situation.
  • the engaging holes 12 are provided in the side edge portion 6B of the opening-side edge 6A of the rear panel 6 at three positions in the vertical direction.
  • a gutter member 16 extending in the vertical direction is provided so as to cover the back side of these multiple engaging holes 12, and is fixed with screws 17 to the overlap portion 6C of the rear panel 6 at multiple positions in the vertical direction.
  • This gutter member 16 can collect the rainwater seeping through the engaging holes 12 so as not to directly spatter toward the inside of the machine room, and cause the rainwater to flow downward along the gutter member 16 and drain it at a lower position where the rainwater is at least unlikely to spatter on the internal parts susceptible to water seepage.
  • the gutter member 16 is a steel plate formed into an L-shape or a resin material formed into an L-shape, and covers the back side of the multiple engaging holes 12 with a short side 16A of the L-shape, and is fixed with screws with its long side 16B overlapping the overlap portion 6C of the rear panel 6. In this way, a space 18 of an appropriate size and shape which is shielded from the inside of the machine room is formed on the back side of the multiple engaging holes 12, and the gutter member serves as a passage which the rainwater seeping into the space 18 flows downward through.
  • gutter member 16 provided on the back side of the engaging holes 12 of the rear panel 6 has been described above, needless to say, the gutter member may be as necessary provided on the back side of the engaging holes (not shown) of the front panel 5 in a similar manner.
  • the service panel 10 of the outdoor unit 1 is attached and detached for maintenance inspection service of the control box and other outdoor-side devices disposed on the machine room side inside the casing 8, and by adopting the claw fixing method, the number of positions fixed with screws is minimized and the serviceability is improved.
  • the gutter member 16 which extends in the vertical direction and covers the back side of the multiple engaging holes 12 is provided on the back side of the opening-side edges 6A or 5A of the rear panel 6 or the front panel 5 in which the multiple engaging holes 12 are provided, so that the water seeping through the engaging holes 12 is caused to flow down along the gutter member 16 and the water can be drained to the inside or the outside of the casing 8 at a lower position where the water is at least unlikely to spatter on the internal parts such as electrical components susceptible to water seepage.
  • the waterproofing measure requires only the provision of one gutter member 16 which extends across the multiple upper and lower engaging holes 12 in the vertical direction on the back side of these multiple engaging holes 12, it is possible to simplify the waterproof structure and facilitate its assembly work to realize an inexpensive permanent waterproofing measure.
  • the gutter member 16 is a member which forms the space 18 of any shape and size on the back side of the engaging holes 12 which allows the seeping water to flow down, it is possible to cause the rainwater seeping through the multiple engaging holes 12 to flow downward through the space 18 of any shape and size formed by the gutter member 16, and drain the water to the inside or the outside of the casing 8 from the lower end of the gutter member.
  • the shape and the size of the space 18 formed by the gutter member 16 can be simple and small, just enough to allow minute amounts of rainwater seeping through the multiple engaging holes 12 to flow down through the space.
  • the configuration of the gutter member 16 itself can be made simple and inexpensive.
  • the gutter member 16 is made of a steel plate or a resin plate. Accordingly, unlike the configuration in which the gap of the engaging hole 12 is blocked by attaching an insulation sheet, there is no need to worry about peeling of the bonding surface or aged deterioration of the gutter member itself, etc. Thus, a permanent waterproofing measure can be provided, and the problems such as the risk of water seepage increasing over time can also be solved.
  • the present invention is not limited to the inventions according to the above-described embodiments, but can be appropriately changed without departing from the scope of the present invention.
  • the example with the engaging claws 13 and the engaging holes 12 provided at the left and right ends at three positions in the vertical direction has been described; however, the numbers of the engaging claws 13 and the engaging holes 12 may be appropriately increased or decreased according to the size, etc. of the service panel 10.
  • the example where the maintenance inspection opening 9 is provided at a corner part of the front panel 5 from the front face to the side face of the casing 8, and the service panel 10 with an L-shaped cross-section is detachably installed at the opening 9 has been described.
  • the position of the opening 9 does not have to be the corner part, and accordingly the service panel 10 does not have to be L-shaped in cross-section.
  • the opening 9 may be provided at a different position and the service panel 10 may be formed into a shape corresponding to the opening.

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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)
EP14175373.1A 2013-07-10 2014-07-02 Unité extérieure de climatiseur Withdrawn EP2840326A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013144516A JP5968271B2 (ja) 2013-07-10 2013-07-10 空気調和機の室外ユニット

Publications (1)

Publication Number Publication Date
EP2840326A1 true EP2840326A1 (fr) 2015-02-25

Family

ID=51167654

Family Applications (1)

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EP14175373.1A Withdrawn EP2840326A1 (fr) 2013-07-10 2014-07-02 Unité extérieure de climatiseur

Country Status (2)

Country Link
EP (1) EP2840326A1 (fr)
JP (1) JP5968271B2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3203161A1 (fr) * 2016-02-05 2017-08-09 Mitsubishi Heavy Industries Thermal Systems, Ltd. Appareil de climatisation
WO2018030892A1 (fr) * 2016-08-12 2018-02-15 Daikin Research & Development Malaysia Sdn. Bhd. Panneau de service de climatiseur
US11428421B2 (en) 2017-07-31 2022-08-30 Daikin Industries, Ltd. Outdoor unit of refrigeration apparatus
EP4102143A1 (fr) * 2021-06-07 2022-12-14 Panasonic Intellectual Property Management Co., Ltd. Dispositif de source de chaleur de pompe à chaleur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105972716B (zh) * 2016-06-23 2020-09-04 珠海格力电器股份有限公司 钣金件连接结构及空调室外机
CN108592247A (zh) * 2018-04-28 2018-09-28 广东美的暖通设备有限公司 空调室外机和具有其的空调器
WO2020012527A1 (fr) * 2018-07-09 2020-01-16 三菱電機株式会社 Unité extérieure pour dispositif de climatisation
AU2020431597B2 (en) * 2020-02-26 2024-01-25 Mitsubishi Electric Corporation Outdoor unit for air conditioner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09145096A (ja) * 1995-11-24 1997-06-06 Matsushita Electric Ind Co Ltd 空気調和機
JP2007247984A (ja) * 2006-03-16 2007-09-27 Matsushita Electric Ind Co Ltd 空気調和機の室外ユニット
JP2009250459A (ja) * 2008-04-02 2009-10-29 Panasonic Corp 空気調和機の室外ユニット
JP4559326B2 (ja) 2005-09-13 2010-10-06 三菱電機株式会社 空気調和機の室外ユニット
JP2012007777A (ja) 2010-06-23 2012-01-12 Fujitsu General Ltd 空気調和機の室外機
JP2013133969A (ja) * 2011-12-26 2013-07-08 Panasonic Corp 空気調和機の室外ユニット

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US6354936B1 (en) * 1998-08-10 2002-03-12 Lg Electronics Inc. Opening-closing structure of an inlet grille in an air conditioner
JP3019850B1 (ja) * 1998-11-13 2000-03-13 ダイキン工業株式会社 空気調和機の室外機
WO2007086640A2 (fr) * 2006-01-26 2007-08-02 Lg Electronics Inc. Unité intérieure pour un conditionneur d'air
JP5058004B2 (ja) * 2008-01-28 2012-10-24 三菱電機株式会社 室外機及びこれを備えた空気調和機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09145096A (ja) * 1995-11-24 1997-06-06 Matsushita Electric Ind Co Ltd 空気調和機
JP4559326B2 (ja) 2005-09-13 2010-10-06 三菱電機株式会社 空気調和機の室外ユニット
JP2007247984A (ja) * 2006-03-16 2007-09-27 Matsushita Electric Ind Co Ltd 空気調和機の室外ユニット
JP2009250459A (ja) * 2008-04-02 2009-10-29 Panasonic Corp 空気調和機の室外ユニット
JP2012007777A (ja) 2010-06-23 2012-01-12 Fujitsu General Ltd 空気調和機の室外機
JP2013133969A (ja) * 2011-12-26 2013-07-08 Panasonic Corp 空気調和機の室外ユニット

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3203161A1 (fr) * 2016-02-05 2017-08-09 Mitsubishi Heavy Industries Thermal Systems, Ltd. Appareil de climatisation
AU2017200655B2 (en) * 2016-02-05 2018-04-19 Mitsubishi Heavy Industries Thermal Systems, Ltd. Air conditioning apparatus
WO2018030892A1 (fr) * 2016-08-12 2018-02-15 Daikin Research & Development Malaysia Sdn. Bhd. Panneau de service de climatiseur
CN109564017A (zh) * 2016-08-12 2019-04-02 大金研发马来西亚私人有限公司 空调配电面板
CN109564017B (zh) * 2016-08-12 2021-04-06 大金研发马来西亚私人有限公司 空调配电面板
US11428421B2 (en) 2017-07-31 2022-08-30 Daikin Industries, Ltd. Outdoor unit of refrigeration apparatus
EP3663659B1 (fr) * 2017-07-31 2022-12-14 Daikin Industries, Ltd. Unité extérieure destinée à un dispositif frigorifique
EP4102143A1 (fr) * 2021-06-07 2022-12-14 Panasonic Intellectual Property Management Co., Ltd. Dispositif de source de chaleur de pompe à chaleur

Also Published As

Publication number Publication date
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JP2015017740A (ja) 2015-01-29

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