WO2019123596A1 - Outdoor unit for refrigeration cycle device - Google Patents

Outdoor unit for refrigeration cycle device Download PDF

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Publication number
WO2019123596A1
WO2019123596A1 PCT/JP2017/045883 JP2017045883W WO2019123596A1 WO 2019123596 A1 WO2019123596 A1 WO 2019123596A1 JP 2017045883 W JP2017045883 W JP 2017045883W WO 2019123596 A1 WO2019123596 A1 WO 2019123596A1
Authority
WO
WIPO (PCT)
Prior art keywords
heater
outdoor unit
bottom plate
refrigeration cycle
bracket
Prior art date
Application number
PCT/JP2017/045883
Other languages
French (fr)
Japanese (ja)
Inventor
登 吉永
Original Assignee
東芝キヤリア株式会社
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 東芝キヤリア株式会社 filed Critical 東芝キヤリア株式会社
Priority to CN201780097747.5A priority Critical patent/CN111480036A/en
Priority to PL434389A priority patent/PL240268B1/en
Priority to PCT/JP2017/045883 priority patent/WO2019123596A1/en
Priority to JP2019559953A priority patent/JP6916905B2/en
Publication of WO2019123596A1 publication Critical patent/WO2019123596A1/en
Priority to JP2021117593A priority patent/JP7096413B2/en

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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
    • F24F1/36—Drip trays for 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles

Definitions

  • An embodiment according to the present invention relates to an outdoor unit of a refrigeration cycle apparatus.
  • the outdoor unit of such a refrigeration cycle apparatus includes a housing having a bottom plate, a compressor provided inside the housing, a heat exchanger, and a blower for ventilating the heat exchanger.
  • the refrigeration cycle apparatus may form frost on the heat exchanger of the outdoor unit by continuing the heating (heating) operation in an environment where the outside air temperature is low, such as a cold region or a snowfall region.
  • the heat exchanger of the outdoor unit is frosted, the heat exchange performance of the refrigeration cycle apparatus is significantly reduced.
  • the refrigeration cycle apparatus periodically performs a defrosting operation (so-called defrosting operation) that melts the frost adhering to the heat exchanger of the outdoor unit.
  • defrosting operation a high temperature refrigerant is caused to flow through the heat exchanger of the outdoor unit to melt the adhered frost and drop it on the bottom plate.
  • the drain water (drainage, melted frost) generated by the defrosting operation is drained to the outside through the drainage port provided on the bottom plate of the outdoor unit.
  • drain water generated by the defrosting operation may freeze on the bottom plate before being drained to the outside of the outdoor unit. That is, the drain water freezes before reaching the drainage port and can not be drained normally.
  • the outdoor unit of the conventional refrigerating cycle apparatus is provided with the electric heating apparatus provided in the upper surface of the bottom plate.
  • the heating device of the conventional outdoor unit is equipped with a sheathed heater which can be bent somewhat but is difficult to lay along a free path as a heating device. That is, the heating device of the conventional outdoor unit needs to be manufactured in a shape adapted to the laying path in advance.
  • a flexible and freely bendable heater capable of flexibly setting the laying path may be applied to the electric heating device of the outdoor unit.
  • the heating capacity per unit area of the flexible heater is inferior to the heating capacity per unit area of the conventional sheathed heater. That is, there is a trade-off relationship between the degree of freedom of the heater installation path and the heat generation capacity per unit area of the heater.
  • the present invention proposes an outdoor unit of a refrigeration cycle apparatus capable of reliably draining drain water generated by a defrosting operation using a flexible heater having a lower heating capacity per unit area than conventional sheathed heaters. Do.
  • an outdoor unit of a refrigeration cycle apparatus is provided with a bottom plate having a drainage port, and flexibility, and doubles in all or part of the periphery of the drainage port. And a linear heater having a double laying section to be laid.
  • the outdoor unit of the refrigerating-cycle apparatus based on embodiment of this invention is provided with the partition plate integrally molded to a fixing tool, and being pinched
  • the outdoor unit of the refrigeration cycle apparatus includes a heater holding piece that is integrally molded with the fixture and causes the fixture to be held by plastic deformation. .
  • the fixture of the outdoor unit of the refrigeration cycle apparatus is made of a sheet metal, and the heater holding piece is positioned between the fixture and the bottom plate, so that the space between the heater and the bottom plate Preferably, a clearance of
  • An outdoor unit of a refrigeration cycle apparatus includes a heat exchanger disposed above the bottom plate, there are a plurality of the drainage ports, and all or part of the respective drainage ports are the above It is preferable to arrange
  • the fixture of the outdoor unit of the refrigeration cycle apparatus according to the embodiment of the present invention is integrally molded in the projection area.
  • the heater of the outdoor unit of the refrigeration cycle apparatus has a linear shape in which a heating wire and an electric wire parallel to the heating wire are integrated, and the heating wire is closer to the bottom plate than the electric wire. It is preferable that it is arrange
  • the outdoor unit of the refrigeration cycle apparatus includes a fan disposed on the bottom plate to be opposed to the heat exchanger.
  • the heater was laid on the bottom plate of the lower part of the blower.
  • FIG. 1 It is a disassembled perspective view of an example of the outdoor unit of the refrigerating cycle device concerning the embodiment of the present invention.
  • the top view of the baseplate of the outdoor unit which concerns on embodiment of this invention, and an electric heating apparatus.
  • the top view of the baseplate of the outdoor unit which concerns on embodiment of this invention, and an electric heating apparatus.
  • the top view of the baseplate of the outdoor unit which concerns on embodiment of this invention, and an electric heating apparatus.
  • BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the baseplate of the outdoor unit and electric heating apparatus which concern on embodiment of this invention.
  • BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the baseplate of the outdoor unit and electric heating apparatus which concern on embodiment of this invention.
  • FIGS. 1 to 10 Embodiments of an outdoor unit of a refrigeration cycle apparatus according to the present invention will be described with reference to FIGS. 1 to 10.
  • the same or corresponding components are denoted by the same reference numerals.
  • FIG. 1 is an exploded perspective view of an example of an outdoor unit of a refrigeration cycle apparatus according to an embodiment of the present invention.
  • the outdoor unit 1 of the refrigeration cycle apparatus includes a housing 13 having an air inlet 11 and an air outlet 12, and a compressor 15 disposed in the housing 13.
  • the air blower 16 disposed in the housing 13, the heat exchanger 17 disposed in the housing 13, and the electric component box 18 disposed in the housing 13.
  • the housing 13 has a rectangular parallelepiped shape.
  • the width dimension (the dimension in the left-right direction) of the housing 13 is larger than the depth dimension (the dimension in the front-rear direction) of the housing 13.
  • the housing 13 includes a bottom plate 21, a left side plate 22a covering the left side, a right side plate 22b covering the right side, a front plate 25 covering the front, fingers 26 covering the back, and a top plate 27 covering the top surface.
  • a partition plate 28 provided upright on the bottom plate 21 and partitioning the inside of the housing 13 into right and left.
  • the bottom plate 21 has a rectangular shape in plan view.
  • the width dimension of the bottom plate 21 is larger than the depth dimension of the bottom plate 21.
  • the bottom plate 21 is substantially parallel to the ground contact surface of the outdoor unit 1.
  • the bottom plate 21 is a thick sheet metal work to support each of the incorporated parts.
  • the compressor 15, the blower 16 and the heat exchanger 17 are supported and fixed to the bottom plate 21.
  • the front plate 25 that is the front of the housing 13 is made of a thin sheet metal.
  • the front plate 25 has a circular air outlet 12 at the center.
  • the air outlet 12 is provided with a fan guard 29 having a fine square opening.
  • the fingered 26 covers and hides the heat exchanger 17.
  • the partition plate 28 is a plate-like member extending in the vertical direction and made of sheet metal.
  • the partition plate 28 is fixed to the bottom plate 21 by screwing or the like.
  • the partition plate 28 divides the inside of the housing 13 in the width direction (left and right direction) of the housing 13.
  • a space on the right side in the housing 13 partitioned by the partition plate 28 is a machine room 31.
  • a space on the left side in the housing 13 partitioned by the partition plate 28 is a fan chamber 32.
  • the compressor 15 is disposed in the machine room 31. Inside the compressor 15, a compression mechanism (not shown) that compresses and delivers the refrigerant circulating in the refrigeration cycle, and a motor (not shown) that drives the compression mechanism are provided.
  • the blower 16 and the heat exchanger 17 are disposed in the blower chamber 32.
  • the heat exchanger 17 is a find tube type.
  • the heat exchanger 17 extends along the back surface and the left side surface of the housing 13 and has an L shape in plan view.
  • the blower 16 has a propeller fan.
  • the blower 16 is disposed between the front plate 25 of the housing 13 and the heat exchanger 17 with the rotation center line directed in the front-rear direction of the housing 13.
  • the blower 16 is disposed on the bottom plate 21 so as to face the heat exchanger 17.
  • the refrigeration cycle apparatus executes a defrosting operation for melting the frost adhering to the heat exchanger 17 periodically or when frost formation is detected.
  • the defrosting operation is performed in a cooling (cooling) operation state by driving a four-way valve (not shown) for switching the flow of refrigerant in the refrigeration cycle.
  • the heat exchanger 17 which has functioned as an evaporator during heating (warming) operation functions as a condenser.
  • the high temperature refrigerant flows in the heat exchanger 17.
  • the temperature of the heat exchanger 17 rises, the frost adhering to the fins and pipes constituting the heat exchanger 17 melts, and the melted water flows down onto the bottom plate 21.
  • the bottom plate 21 is a substantially flat plate, and in order to drain drain water to the outside of the outdoor unit 1, it mainly has an appropriate drainage port (hole) in the lower part of the heat exchanger.
  • the outdoor unit 1 which concerns on this embodiment is provided with the electric heating apparatus which prevents freezing of drain water.
  • An electric heating device of the outdoor unit 1 according to the present embodiment will be described.
  • FIG 2 to 4 are plan views of the bottom plate 21 and the electric heating device 46 of the outdoor unit according to the embodiment of the present invention.
  • FIG 5 and 6 are perspective views of the bottom plate 21 and the electric heating device 46 of the outdoor unit according to the embodiment of the present invention.
  • FIG. 2 is a figure for demonstrating arrangement
  • the electric heating device 46 is illustrated including a bracket 47 that attaches to the bottom plate 21.
  • the heat exchanger 17 installed on the bracket 47 is shown with the dashed-two dotted line. 5 corresponds to the perspective view of FIG. 3, and FIG. 6 corresponds to the perspective view of FIG.
  • the outdoor unit 1 of the refrigeration cycle apparatus includes an electric heating device 41 for preventing freezing of drain water dropped from the heat exchanger 17 during the defrosting operation.
  • the heating device 41 is provided on the bottom plate 21.
  • the heat exchanger 17 of the outdoor unit 1 is bent in an L-shape along the inner surface of the rear surface and the inner surface of the left surface of the outdoor unit 1.
  • a portion along the back surface of the outdoor unit 1 is referred to as a back surface portion 17a
  • a portion along the left side surface of the outdoor unit 1 is referred to as a side surface portion 17b.
  • the bottom plate 21 of the housing 13 has a drain port 43 for draining drain water dropped from the heat exchanger 17 to the outside (outside) of the outdoor unit 1.
  • a plurality of drainage ports 43 are provided. Most of the drainage ports 43 are disposed in a projection area PA (a heat exchanger 17 shown by a two-dot chain line in FIG. 3) on the bottom plate 21 of the heat exchanger 17 where the drain water drips most .
  • PA a heat exchanger 17 shown by a two-dot chain line in FIG. 3
  • the first drain port 43 a is disposed along the back surface of the outdoor unit 1 and is a long hole elongated in the width direction of the outdoor unit 1. As shown in FIG. 3, the first drain port 43 a entirely fits in the projection area PA on the bottom plate 21 of the back surface portion 17 a of the heat exchanger 17.
  • the second drainage port 43b is the largest drainage port of the opening area.
  • the second drain port 43 b is disposed along the back surface of the outdoor unit 1 and is circular.
  • the second drain port 43 b is disposed directly behind the blower 16 in a plan view.
  • the second drain port 43 b partially protrudes from the projection area PA of the heat exchanger 17 onto the bottom plate 21 toward the blower 16.
  • the second drain port 43 b is provided substantially at the center of the back surface 17 a of the heat exchanger 17. For this reason, the second drain port 43b is a drain port from which the largest amount of drain water flows.
  • the third drain port 43 c is disposed along the left side surface of the outdoor unit 1 and is a long hole elongated in the front-rear direction of the outdoor unit 1.
  • the third drain port 43 c is accommodated in the projection area PA on the bottom plate 21 of the side portion 17 b of the heat exchanger 17.
  • the third drain port 43c mainly drains drain water dropped from the side surface portion 17b of the heat exchanger 17 to the outside (lower portion).
  • the fourth drain port 43 d is disposed along the back surface of the outdoor unit 1 and is a long hole substantially elongated in the width direction of the outdoor unit 1.
  • the fourth drain port 43d is closer to a corner (corner) on the rear left side of the outdoor unit 1 than the second drain port 43b.
  • the fourth drain port 43 d is disposed near the corner on the far left side of the outdoor unit 1.
  • the fourth outlet 43 d fits in a projection area PA of the heat exchanger 17 onto the bottom plate 21.
  • the fifth drain port 43 e is disposed at a corner on the rear left side of the outdoor unit 1.
  • the fifth drain port 43 e is located directly below the bending portion of the L-shaped heat exchanger 17 and fits in the projection area PA of the heat exchanger 17 onto the bottom plate 21.
  • the fourth drainage port 43d and the fifth drainage port 43e are auxiliary drainage ports.
  • the fourth drain port 43d and the fifth drain port 43e are provided in consideration of the possibility that the drain water can not be drained by the main second drain port 43b and third drain port 43c.
  • the electric heating device 41 is flexible and has at least one linear heater 46 having a double laying portion 45 which is double laid around all or part of the periphery of the drainage port 43; A bracket 47 as a fixing tool for collectively fixing the double laying portion 45 of the heater 46 to the bottom plate 21 and a screw 48 as a fixing member for fixing the bracket 47 to the bottom plate 21 are provided.
  • the flexible heater 46 a so-called cord heater, is cheaper than the sheathed heater but has a smaller calorific value.
  • the heater 46 has two wires running in parallel and a coating made of silicon rubber or the like covering the periphery of the two wires.
  • One end 46a (starting end) of the heater 46 is an electrical input end for power supply connection.
  • the two internal wires are electrically connected by crimping or the like.
  • One of the two wires is a hot wire, and the other is a wire for supplying electricity to the hot wire.
  • the heater 46 is laid on the upper surface of the bottom plate 21 of the housing 13 while being held by the bracket 47. That is, after the heater 46 is laid on the bracket 47, the heater 46 is laid on the bottom plate 21 of the housing 13 integrally with the bracket 47 while maintaining the laying path.
  • the heater 46 starts from the starting end (one end 46 a) connected to the AC power supply in the electric component box 18 (FIG. 1) provided in the machine room 31 of the outdoor unit 1.
  • the heater 46 extends from one end 46a and enters the fan chamber 32, and once crosses the front of the first outlet 43a from right to left (portion 46c in FIG. 2). Subsequently, the heater 46 is folded back before reaching the second outlet 43b (portion 46d in FIG. 2).
  • the heater 46 follows the opening shape of the first drain port 43a, and extends to the second drain port 43b through the front side, the right side, and the back side of the first drain port 43a.
  • the heater 46 conforms to the opening shape of the second drainage port 43b, and passes through the back side of the second drainage port 43b.
  • the heater 46 follows the shape of the edge of the bottom plate 21 of the housing 13 and passes through the corner at the rear left of the bottom plate 21 and extends toward the third drainage port 43c. Subsequently, the heater 46 passes near the edge of the bottom plate 21 of the housing 13 more than the fourth drain port 43 d and the fifth drain port 43 e on the way from the second drain port 43 b to the third drain port 43 c.
  • the heater 46 reaches the third outlet 43c, it passes through the left side, the front side, and the right side of the third outlet 43c.
  • the heater 46 is folded back before reaching the fourth outlet 43d and the fifth outlet 43e and extends again toward the third outlet 43c.
  • the installation route of the heater 46 so far includes a portion corresponding to the outer route of the double installation part 45.
  • the heater 46 when the heater 46 reaches the third outlet 43c, it passes inside the outer path (a part near the third outlet 43c) and passes through the right side, the front side, and the left side of the third outlet 43c. It extends toward the outlet 43d. Before reaching the fourth outlet 43d, the heater 46 changes the stretching direction to the right to cross the front of the fourth outlet 43d and the fifth outlet 43e. The heater 46 extends toward the second outlet 43b when crossing the front of the fourth outlet 43d and the fifth outlet 43e. When the heater 46 reaches the second drainage port 43b, it passes inside the outer path (a part near the second drainage port 43b) and conforms to the shape of the second drainage port 43b and the back side of the second drainage port 43b It crosses and extends toward the first drain port 43a.
  • the heater 46 when the heater 46 reaches the first drainage port 43a, it passes through the inner side (a part near the first drainage port 43a) than the outer path, and passes through the back side, the left side, and the front side of the first drainage port 43a It extends toward the mouth 43b. Subsequently, when the heater 46 reaches the second drainage port 43b, it crosses the front side of the second drainage port 43b from the right side to the left side according to the shape of the second drainage port 43b.
  • the installation path of the heater 46 so far includes a portion corresponding to the inner path of the double installation portion 45. Then, among the laying paths of the heater 46, the front side, the right side, and the back side of the first drainage port 43a, the back side of the second drainage port 43b, the left side, the front side, and the right side of the third drainage port 43c And a portion extending from the first outlet 43a to the second outlet 43b, a portion extending from the second outlet 43b to the fourth outlet 43d, and a portion crossing the front side of the fifth outlet 43e, It is a double laying portion 45 of the heater 46.
  • the double laying portion 45 is appropriately set according to the inflow path of the drain water flowing into the drainage port and the inflow amount from the viewpoint of preventing freezing of the drain water around the drainage port 43. That is, even if the double laying portion 45 of the heater 46 and the single laying portion are mixed around the drainage port 43, the entire circumference of the drainage port 43 is surrounded by the double laying portion 45. Also good. For example, of the inner path of the heater 46, a portion extending toward the fourth outlet 43d via the left side of the third outlet 43c is diverted to the back side of the third outlet 43c to cover the entire periphery of the third outlet 43c. It is also possible to surround in the double laying part 45.
  • the heater 46 crosses the front side of the fourth drain port 43d, passes through the right side of the third drain port 43c, and enters the lower region (the region 16 indicated by a broken line in the figure) of the blower 16.
  • the heater 46 extends meanderingly from the right side to the left side of the lower region of the blower 16 to reach the end (the other end 46 b). That is, the heater 46 is also laid on the bottom plate of the lower part of the blower 16 in addition to the lower part of the heat exchanger 17.
  • the heater 46 surrounds the drain port 43, it is preferable that the heater 46 is not completely in close contact with the bottom plate 21 so that drain water in the defrosting operation reliably reaches the drain port 43.
  • the heater 46 is preferably separated from the bottom plate 21 in a range that does not substantially affect the heating of the bottom plate 21, for example, 0.5 mm or less. By this size setting, drain water can flow under the heater 46, and drain water dropped to the outside of the heater 46 can also flow under the heater 46 and flow into the drainage port 43.
  • the portion of the heater 46 installed in the lower area of the blower 16 melts the snow that has entered the outdoor unit 1 in order to prevent the snow that has entered the outdoor unit 1 from accumulating until it inhibits the rotation of the blower 16. It has become. In addition, if it installs in the cold district where there is not much snow, the heater 46 of this part is unnecessary.
  • the bracket 47 includes a double laying portion 45 of the heater 46, and a first bracket 51 hanging on a projection area PA of the heat exchanger 17 onto the bottom plate 21; and a second bracket 52 disposed in a lower area of the blower 16; Contains.
  • the first bracket 51 is integrally formed in the projection area PA.
  • the first bracket 51 is, for example, a sheet metal machined product obtained by processing a sheet metal.
  • the first bracket 51 follows the laying path of the heater 46 laid in the projection area PA, in other words, the laying path of the heater 46 including the double laying portion 45.
  • the first bracket 51 also has a bridge portion 53 for reinforcement.
  • the bridge portion 53 does not cover the heater 46.
  • the bridge portion 53 improves the overall strength of the first bracket 51 and improves the handling of the integrated first bracket 51 by laying the heater 46.
  • the bridging portion 53 is the right side of the first drain 43a (first bridge 53a), both left and right sides of the second drain 43b (second bridge 53b), and the first drain 43a and the second drain.
  • the first bracket 51 may be divided into a plurality of parts.
  • the first bracket 51 is an integral part including the double laying portion 45 around the first drain port 43a, an integral part including the double laying portion 45 around the second drain port 43b, and the third drainage port It may be divided into an integral part including a double laying portion 45 around 43c.
  • the second bracket 52 linearly extends the lower region of the blower 16 in the left-right direction (the width direction of the outdoor unit 1).
  • a part of the heater 46 protrudes from the second bracket 52 so as to cross in the extending direction of the second bracket 52 and meanders.
  • the meandering portion is used for adjustment of individual differences (variations among products) of the length of the heater 46.
  • the heater 46 is laid on the first bracket 51 and the second bracket 52, if there is an extra length at the end of the heater 46, more length is allocated to the meander portion to adjust the extra length.
  • the screw 48 is, for example, the back side of the first bridge 53a and the second outlet 43b, the left side of the fourth outlet 43d, the right side of the fourth bridge 53d and the third outlet 43c, and the right side of the second outlet 43b.
  • the first bracket 51 is fixed to the bottom plate 21 at an intermediate portion of the laying path from the lower portion toward the lower region of the blower 16 and at the end portion thereof.
  • a fixing flange 58 having a screw hole 57 described later is provided integrally with the first bracket 51.
  • the screw 48 fixes, for example, an appropriate portion of the second bracket 52 to the bottom plate 21.
  • FIG. 7 is a perspective view of a state in which the heater of the outdoor unit according to the embodiment of the present invention is installed on a bracket.
  • FIG 8 and 9 are perspective views of the bracket of the outdoor unit according to the embodiment of the present invention.
  • FIG. 8 is a perspective view of the bracket 47 as viewed from the upper side
  • FIG. 9 is a perspective view of the bracket 47 as viewed from the lower side.
  • the heater 46 of the outdoor unit 1 of the refrigeration cycle apparatus is laid and integrated on the bracket 47 before laying on the bottom plate 21 of the outdoor unit 1.
  • the bracket 47 of the outdoor unit 1 of the refrigeration cycle apparatus is integrally molded with the bracket 47 and holds the heater 46 by plastic deformation.
  • a heater holding piece 55 is provided.
  • the bracket 47 has a U-shaped open cross section for holding the heater 46.
  • the bracket 47 has the U-shaped open portion directed to the bottom plate 21.
  • Most of the side walls of the bracket 47 (the wall standing against the bottom plate 21 of the housing 13) are such that the heat of the heater 46 warms the bottom plate 21 as much as possible and releases heat from the bracket 47 side. It is separated from the bottom plate 21 of the housing 13 without reaching the bottom plate 21 of the housing 13.
  • the heater holding piece 55 is formed of a sheet metal integral with the bracket 47.
  • the heater holding piece 55 protrudes from the side wall of the bracket 47.
  • the heater holding piece 55 projects from the heater 46 laid on the bracket 47 while extending straight from the side wall of the bracket 47.
  • a bowl-shaped notch is provided at the root of this projecting portion.
  • the heater holding piece 55 can be easily bent at this narrowed notch.
  • the heater 46 is fixed to the bracket 47 by bending the heater holding piece 55 at the notch portion. When the bracket 47 is screwed to the bottom plate 21, the heater holding piece 55 is in close contact with the bottom plate 21.
  • the gap H between the bottom plate 21 and the heater 46 by the thickness of the heater holding piece 55 that is, the thickness of the sheet metal forming the bracket 47. Is formed. That is, by appropriately selecting the thickness of the metal plate of the bracket 47, the gap between the bottom plate 21 and the heater 46 can be appropriately secured.
  • the heater holding piece 55 is provided at an appropriate position of the bracket 47.
  • the heater holding piece 55 is provided around the portion where the flexible heater 46 is bent and laid, or the length of the non-fixed linear portion of the heater 46 does not exceed 50 mm. Or may be provided in the double laying portion 45 of the heater 46.
  • the heater holding piece 55 is not only bent to directly hold the heater 46, but may be inserted into a slit (not shown) of the bottom plate 21 and bent on the back (bottom) side of the bottom plate 21, for example.
  • the heater holding piece 55 not only holds the heater 46 on the bracket 47 but also serves as a fixing member for fixing the bracket 47 to the bottom plate 21. For example, it is particularly effective where there is no room for arranging the screw 48.
  • the bracket 47 is provided with a fixing flange 58 having a screw hole 57 through which the screw 48 is inserted.
  • the fixing flange 58 corresponds to the arrangement of the screws 48.
  • the fixing flange 58 is also integrally molded with a sheet metal bracket 47.
  • the fixing flange 58 is formed by bending a sheet metal including the bracket 47.
  • FIG. 10 is sectional drawing in the double installation part of the heater of the outdoor unit which concerns on embodiment of this invention.
  • the heater 46 of the outdoor unit 1 of the refrigeration cycle apparatus includes the heating wire 61, the electric wire 62 parallel to the heating wire 61, the heating wire 61 and the electric wire And 62 an outer cover 63 for bundling.
  • the jacket 63 is a flexible coating such as silicone rubber.
  • the bracket 47 holds the heater 46 such that the high heat side of the heater 46 is located closer to the bottom plate 21 than the low temperature side of the heater 46.
  • the heat wire 61 is disposed on the lower side of the wire 62 and on the near side of the bottom plate 21.
  • the bottom plate 21 side can be efficiently heated.
  • the first bracket 51 is provided with a partition plate 65 sandwiched between the heaters 46 of the double laying portion 45.
  • the partition plate 65 is integrally formed with the first bracket 51.
  • the partition plate 65 is formed integrally with the first bracket 51 by a so-called cutting and bending process in which a cut is formed in a part of the first bracket 51 and the cut is bent toward the back side of the top plate. Therefore, the first bracket 51 has an opening 66 at a position where the partition plate 65 is provided.
  • the partition plate 65 is disposed substantially at the center in the width direction of the first bracket 51 (the direction intersecting the extending direction). In other words, the partition plate 65 bisects the inside of the bracket 47 in the width direction.
  • the heat wire 61 is disposed on the opening side
  • the electric wire 62 is disposed on the back side
  • the heater 46 is accommodated for each of the divided recesses (inside of the bracket 47).
  • the double laying portion 45 of the heater 46 is sandwiched and held between the side wall of the first bracket 51 and the partition plate 65. Further, the heater 46 of the portion other than the double laying portion 45 of the heater 46, that is, the portion which is simply a single layer, arranges the heat wire 61 on the opening side and arranges the electric wire 62 on the back side. It is pinched and held.
  • the outdoor unit 1 of the refrigeration cycle apparatus is a linear heater that has flexibility and has a double laying portion 45 that is double laid around all or part of the outlet 43. It has 46. Therefore, the outdoor unit 1 is provided with a flexible heater 46 which is inferior in heat generation capacity per unit area to the conventional sheathed heater, but it is easy to increase the degree of freedom of the laying path of the heater 46. That is, the outdoor unit 1 doubles the heater 46 on all or part of the periphery of the drainage port 43 where drainage water is easily collected and drainage water is collected, thereby increasing the calorific value of the drainage port 43 Intensively warm and allow smooth drainage. In addition, the outdoor unit 1 suppresses the consumption of excess power without laying the heater 46 double even at a portion that does not affect the flow of drain water, even at a low temperature compared to the periphery of the drainage port 43. .
  • the outdoor unit 1 of the refrigeration cycle apparatus includes a bracket 47 for collectively fixing at least the double laying portion 45 of the heater 46 to the bottom plate 21. Therefore, the outdoor unit 1 can reliably hold the double laying portion 45 of the heater 46 by the bracket 47, and can ensure the heating capacity of the relevant portion with certainty.
  • the outdoor unit 1 of the refrigeration cycle apparatus is provided with the partition plate 65 which is integrally formed with the bracket 47 and is sandwiched between the heaters 46 of the double laying portion 45. Therefore, the outdoor unit 1 can reliably hold the double laying portion 45 of the flexible heater 46 even by vibration caused by the operation of the compressor 15 or the blower 16 or vibration during transportation.
  • the outdoor unit 1 of the refrigeration cycle apparatus includes the heater holding piece 55 that holds the heater 46 on the bracket 47 by plastic deformation. Therefore, when laying the heater 46, the outdoor unit 1 can reliably hold the double laying portion 45 with the bracket 47, and can reduce the effort required to lay the place.
  • the heater holding piece 55 is positioned between the bracket 47 and the bottom plate 21 so that a gap between the heater 46 and the bottom plate 21 is secured. Therefore, the outdoor unit 1 can appropriately secure a gap between the bottom plate 21 and the heater 46 to be, for example, 0.5 mm or less by appropriately selecting the thickness of the metal plate of the bracket 47. .
  • the outdoor unit 1 of the refrigeration cycle apparatus is provided with a plurality of drainage ports 43, all or part of which are disposed in the projection area PA on the bottom plate 21 of the heat exchanger 17.
  • the outdoor unit 1 can easily route (lay) the flexible heater 46 around the plurality of drainage ports 43.
  • the outdoor unit 1 of the refrigeration cycle apparatus includes the bracket 47 that is integrally molded in the projection area PA on the bottom plate 21 of the heat exchanger 17. Therefore, the outdoor unit 1 reliably holds the double laying portion 45 by the bracket 47 and can easily lay the flexible heater 46 collectively in the projection area PA.
  • the outdoor unit 1 of the refrigeration cycle apparatus includes the heater 46 having the heat wire 61 disposed closer to the bottom plate 21 than the electric wire 62. That is, the outdoor unit 1 can reliably arrange the heating wire 61 closer to the bottom plate 21 than the electric wire 62 by holding the flexible heater 46 securely by the bracket 47.
  • the drain water generated by the defrosting operation can be assured even when using the flexible heater 46 whose heat generation capacity per unit area is inferior to the sheathed heater. Can be drained.
  • first bracket 52 second bracket 53: bridge portion 53a first bridge portion 53b second bridge portion 53c third bridge portion 53d fourth bridge portion 53e ... fifth bridge portion, 55 ... heater holding piece, 57 ... screw hole, 58 ... fixed flange, 61 ... heat wire, 62 ... electric wire, 63 ... jacket, 65 ... partition plate, 66 ... opening.

Abstract

Provided is an outdoor unit for a refrigeration cycle device with which drainage water generated by a defrosting operation can be discharged reliably by using a flexible heater having an inferior heat generation capacity per unit area than a conventional sheath heater. This outdoor unit (1) for a refrigeration cycle device comprises: a base plate (21) having water discharge openings (43); and a flexible linear heater (46) having doubled sections (45) that are laid out in a doubled manner at all or a portion of the periphery of the water discharge openings (43).

Description

冷凍サイクル装置の室外機Outdoor unit of refrigeration cycle equipment
　本発明に係る実施形態は、冷凍サイクル装置の室外機に関する。 An embodiment according to the present invention relates to an outdoor unit of a refrigeration cycle apparatus.
　内部に冷凍サイクル機器を収納し、屋外に設置される冷凍サイクル装置の室外機として、空気調和機の室外機やヒートポンプ式給湯器の室外機がある。このような冷凍サイクル装置の室外機は、底板を有する筐体と、筐体の内部に設けられる圧縮機、熱交換器、およびこの熱交換器に通風を行う送風機と、を備える。 There are an outdoor unit of an air conditioner and an outdoor unit of a heat pump type water heater as an outdoor unit of a refrigeration cycle apparatus which houses a refrigeration cycle device inside and is installed outdoors. The outdoor unit of such a refrigeration cycle apparatus includes a housing having a bottom plate, a compressor provided inside the housing, a heat exchanger, and a blower for ventilating the heat exchanger.
　ところで、冷凍サイクル装置は、寒冷地や、降雪地域のように外気温度が低い環境の下で加熱（暖房）運転を継続することによって、室外機の熱交換器に着霜する場合がある。室外機の熱交換器が着霜した場合には、冷凍サイクル装置の熱交換性能が著しく低下する。 By the way, the refrigeration cycle apparatus may form frost on the heat exchanger of the outdoor unit by continuing the heating (heating) operation in an environment where the outside air temperature is low, such as a cold region or a snowfall region. When the heat exchanger of the outdoor unit is frosted, the heat exchange performance of the refrigeration cycle apparatus is significantly reduced.
　そこで、冷凍サイクル装置は、室外機の熱交換器に付着した霜を溶かす霜取り運転（所謂、除霜運転）を定期的に行う。除霜運転では、室外機の熱交換器に高温の冷媒を流通させることで付着した霜を溶かして、底板に滴下させる。この除霜運転によって生じるドレン水（排水、溶けた霜）が、室外機の底板に設けられた排水口を通じて外部に排水される。 Therefore, the refrigeration cycle apparatus periodically performs a defrosting operation (so-called defrosting operation) that melts the frost adhering to the heat exchanger of the outdoor unit. In the defrosting operation, a high temperature refrigerant is caused to flow through the heat exchanger of the outdoor unit to melt the adhered frost and drop it on the bottom plate. The drain water (drainage, melted frost) generated by the defrosting operation is drained to the outside through the drainage port provided on the bottom plate of the outdoor unit.
　しかしながら、外気温度が氷点下以下の場合には、除霜運転によって生じるドレン水が、室外機の外部に排水される前に底板上で凍結してしまうことがある。つまり、ドレン水は、排水口に達する前に凍結してしまい、正常に排水されなくなる。 However, when the outside air temperature is below the freezing point, drain water generated by the defrosting operation may freeze on the bottom plate before being drained to the outside of the outdoor unit. That is, the drain water freezes before reaching the drainage port and can not be drained normally.
　そこで、従来の冷凍サイクル装置の室外機は、底板の上面に設けられた電熱装置を備えている。 Then, the outdoor unit of the conventional refrigerating cycle apparatus is provided with the electric heating apparatus provided in the upper surface of the bottom plate.
特開２０１５－５５４５５号公報JP 2015-55455 A
　従来の室外機の電熱装置は、多少曲げることができるものの、自由な経路で敷設することが難しいシーズヒーターを電熱装置として備えている。つまり、従来の室外機の電熱装置は、予め敷設経路に適合する形状で製作される必要がある。 The heating device of the conventional outdoor unit is equipped with a sheathed heater which can be bent somewhat but is difficult to lay along a free path as a heating device. That is, the heating device of the conventional outdoor unit needs to be manufactured in a shape adapted to the laying path in advance.
　そこで、敷設経路を柔軟に設定することが可能な、可撓性を有して自由に曲げることが可能なヒーター（いわゆるコードヒーター）が、室外機の電熱装置に適用される場合がある。 Therefore, a flexible and freely bendable heater (so-called cord heater) capable of flexibly setting the laying path may be applied to the electric heating device of the outdoor unit.
　しかしながら、一般に、可撓なヒーターの単位面積あたりの発熱能力は、従来のシーズヒーターの単位面積あたりの発熱能力よりも劣る。つまり、ヒーターの敷設経路の自由度と、ヒーターの単位面積あたりの発熱能力とは、二律背反（トレードオフ）の関係にある。 However, generally, the heating capacity per unit area of the flexible heater is inferior to the heating capacity per unit area of the conventional sheathed heater. That is, there is a trade-off relationship between the degree of freedom of the heater installation path and the heat generation capacity per unit area of the heater.
　そこで、本発明は、従来のシーズヒーターに比べて単位面積あたりの発熱能力が劣る可撓なヒーターを用いて、除霜運転によって生じるドレン水を確実に排水可能な冷凍サイクル装置の室外機を提案する。 Therefore, the present invention proposes an outdoor unit of a refrigeration cycle apparatus capable of reliably draining drain water generated by a defrosting operation using a flexible heater having a lower heating capacity per unit area than conventional sheathed heaters. Do.
　前記の課題を解決するため本発明の実施形態に係る冷凍サイクル装置の室外機は、排水口を有する底板と、可撓性を有し、かつ前記排水口の周囲の全部または一部に二重に敷設される二重敷設部を有する線状のヒーターと、を備えている。 In order to solve the above problems, an outdoor unit of a refrigeration cycle apparatus according to an embodiment of the present invention is provided with a bottom plate having a drainage port, and flexibility, and doubles in all or part of the periphery of the drainage port. And a linear heater having a double laying section to be laid.
　また、本発明の実施形態に係る冷凍サイクル装置の室外機は、少なくとも前記ヒーターの前記二重敷設部を一括して前記底板に固定する固定具と、前記固定具を前記底板に固定する固定部材と、を備えていることが好ましい。 In the outdoor unit of the refrigeration cycle apparatus according to the embodiment of the present invention, a fixing member for collectively fixing at least the double laying portion of the heater to the bottom plate, and a fixing member for fixing the fixing member to the bottom plate And preferably.
　また、本発明の実施形態に係る冷凍サイクル装置の室外機は、固定具に一体成形されて前記二重敷設部における前記ヒーターの間に挟まる仕切板を備えていることが好ましい。 Moreover, it is preferable that the outdoor unit of the refrigerating-cycle apparatus based on embodiment of this invention is provided with the partition plate integrally molded to a fixing tool, and being pinched | interposed between the said heaters in the said double laying part.
　さらに、本発明の実施形態に係る冷凍サイクル装置の室外機は、前記固定具に一体成形され、かつ塑性変形することによって前記ヒーターを前記固定具に保持させるヒーター保持片を備えていることが好ましい。 Furthermore, it is preferable that the outdoor unit of the refrigeration cycle apparatus according to the embodiment of the present invention includes a heater holding piece that is integrally molded with the fixture and causes the fixture to be held by plastic deformation. .
　本発明の実施形態に係る冷凍サイクル装置の室外機の前記固定具は、板金からなり、前記固定具と前記底板との間に前記ヒーター保持片が位置することで前記ヒーターと前記底板との間の隙間が確保されることが好ましい。 The fixture of the outdoor unit of the refrigeration cycle apparatus according to the embodiment of the present invention is made of a sheet metal, and the heater holding piece is positioned between the fixture and the bottom plate, so that the space between the heater and the bottom plate Preferably, a clearance of
　本発明の実施形態に係る冷凍サイクル装置の室外機は、前記底板の上方に配置される熱交換器を備え、前記排水口は複数あり、かつそれぞれの前記排水口の全部または一部は、前記熱交換器の前記底板への投影領域内に配置されていることが好ましい。 An outdoor unit of a refrigeration cycle apparatus according to an embodiment of the present invention includes a heat exchanger disposed above the bottom plate, there are a plurality of the drainage ports, and all or part of the respective drainage ports are the above It is preferable to arrange | position in the projection area | region to the said baseplate of a heat exchanger.
　本発明の実施形態に係る冷凍サイクル装置の室外機の前記固定具は、前記投影領域内で一体成形されていることが好ましい。 It is preferable that the fixture of the outdoor unit of the refrigeration cycle apparatus according to the embodiment of the present invention is integrally molded in the projection area.
　本発明の実施形態に係る冷凍サイクル装置の室外機の前記ヒーターは、熱線と、前記熱線に平行する電線と、を一体化した線状であり、前記熱線は、前記電線よりも前記底板の近くに配置されていることが好ましい。 The heater of the outdoor unit of the refrigeration cycle apparatus according to the embodiment of the present invention has a linear shape in which a heating wire and an electric wire parallel to the heating wire are integrated, and the heating wire is closer to the bottom plate than the electric wire. It is preferable that it is arrange | positioned.
　本発明の実施形態に係る冷凍サイクル装置の室外機は、前記底板上に前記熱交換器と対向して配置された送風機を備えている。この送風機の下部の前記底板上に前記ヒーターを敷設した。 The outdoor unit of the refrigeration cycle apparatus according to the embodiment of the present invention includes a fan disposed on the bottom plate to be opposed to the heat exchanger. The heater was laid on the bottom plate of the lower part of the blower.
本発明の実施形態に係る冷凍サイクル装置の室外機の一例の分解斜視図である。It is a disassembled perspective view of an example of the outdoor unit of the refrigerating cycle device concerning the embodiment of the present invention. 本発明の実施形態に係る室外機の底板および電熱装置の平面図。The top view of the baseplate of the outdoor unit which concerns on embodiment of this invention, and an electric heating apparatus. 本発明の実施形態に係る室外機の底板および電熱装置の平面図。The top view of the baseplate of the outdoor unit which concerns on embodiment of this invention, and an electric heating apparatus. 本発明の実施形態に係る室外機の底板および電熱装置の平面図。The top view of the baseplate of the outdoor unit which concerns on embodiment of this invention, and an electric heating apparatus. 本発明の実施形態に係る室外機の底板および電熱装置の斜視図。BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the baseplate of the outdoor unit and electric heating apparatus which concern on embodiment of this invention. 本発明の実施形態に係る室外機の底板および電熱装置の斜視図。BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the baseplate of the outdoor unit and electric heating apparatus which concern on embodiment of this invention. 本発明の実施形態に係る室外機のヒーターをブラケットに敷設した状態の斜視図。The perspective view of the state which laid the heater of the outdoor unit concerning the embodiment of the present invention in the bracket. 本発明の実施形態に係る室外機のブラケットの斜視図。The perspective view of the bracket of the outdoor unit which concerns on embodiment of this invention. 本発明の実施形態に係る室外機のブラケットの斜視図。The perspective view of the bracket of the outdoor unit which concerns on embodiment of this invention. 本発明の実施形態に係る室外機のヒーターの二重敷設部における断面図。Sectional drawing in the double laying part of the heater of the outdoor unit which concerns on embodiment of this invention.
　本発明に係る冷凍サイクル装置の室外機の実施形態について、図１から図１０を参照して説明する。なお、複数の図面中、同一または相当する構成には同一の符号を付している。 Embodiments of an outdoor unit of a refrigeration cycle apparatus according to the present invention will be described with reference to FIGS. 1 to 10. In the drawings, the same or corresponding components are denoted by the same reference numerals.
　図１は、本発明の実施形態に係る冷凍サイクル装置の室外機の一例の分解斜視図である。 FIG. 1 is an exploded perspective view of an example of an outdoor unit of a refrigeration cycle apparatus according to an embodiment of the present invention.
　図１に示すように、本実施形態に係る冷凍サイクル装置の室外機１は、空気取入口１１と空気吹出口１２とを有する筐体１３と、筐体１３内に配置される圧縮機１５と、筐体１３内に配置される送風機１６と、筐体１３内に配置される熱交換器１７と、筐体１３内に配置される電気部品箱１８と、を備えている。 As shown in FIG. 1, the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment includes a housing 13 having an air inlet 11 and an air outlet 12, and a compressor 15 disposed in the housing 13. The air blower 16 disposed in the housing 13, the heat exchanger 17 disposed in the housing 13, and the electric component box 18 disposed in the housing 13.
　筐体１３は、直方体形状を有している。筐体１３の幅寸法（左右方向の寸法）は、筐体１３の奥行き寸法（前後方向の寸法）よりも大きい。筐体１３は、底板２１と、左側面を覆う左側板２２ａと、右側面を覆う右側板２２ｂと、正面を覆う前板２５と、背面を覆うフィンガード２６と、天面を覆う天板２７と、底板２１に立てて設けられて筐体１３内を左右に仕切る仕切板２８と、を備えている。 The housing 13 has a rectangular parallelepiped shape. The width dimension (the dimension in the left-right direction) of the housing 13 is larger than the depth dimension (the dimension in the front-rear direction) of the housing 13. The housing 13 includes a bottom plate 21, a left side plate 22a covering the left side, a right side plate 22b covering the right side, a front plate 25 covering the front, fingers 26 covering the back, and a top plate 27 covering the top surface. And a partition plate 28 provided upright on the bottom plate 21 and partitioning the inside of the housing 13 into right and left.
　底板２１は、平面視において長方形状を有している。底板２１の幅寸法は、底板２１の奥行き寸法よりも大きい。底板２１は、室外機１の接地面に対して実質的に平行する。底板２１は、内蔵された各部品を支持するために厚めの板金の加工品である。圧縮機１５、送風機１６、および熱交換器１７は、この底板２１に支持固定されている。 The bottom plate 21 has a rectangular shape in plan view. The width dimension of the bottom plate 21 is larger than the depth dimension of the bottom plate 21. The bottom plate 21 is substantially parallel to the ground contact surface of the outdoor unit 1. The bottom plate 21 is a thick sheet metal work to support each of the incorporated parts. The compressor 15, the blower 16 and the heat exchanger 17 are supported and fixed to the bottom plate 21.
　筐体１３の前面となる前板２５は、薄めの板金製である。前板２５は、中央に円形の空気吹出口１２を有している。空気吹出口１２には、細かいマス目状の開口を有するファンガード２９が設けられている。 The front plate 25 that is the front of the housing 13 is made of a thin sheet metal. The front plate 25 has a circular air outlet 12 at the center. The air outlet 12 is provided with a fan guard 29 having a fine square opening.
　フィンガード２６は、熱交換器１７を覆い隠している。 The fingered 26 covers and hides the heat exchanger 17.
　仕切板２８は、板金からなる上下方向に伸びた板状部材である。仕切板２８は、底板２１にネジ止め等で固定されている。仕切板２８は、筐体１３内を筐体１３の幅方向（左右方向）に二分している。仕切板２８によって仕切られた筐体１３内の右側の空間は、機械室３１である。仕切板２８によって仕切られた筐体１３内の左側の空間は、送風機室３２である。 The partition plate 28 is a plate-like member extending in the vertical direction and made of sheet metal. The partition plate 28 is fixed to the bottom plate 21 by screwing or the like. The partition plate 28 divides the inside of the housing 13 in the width direction (left and right direction) of the housing 13. A space on the right side in the housing 13 partitioned by the partition plate 28 is a machine room 31. A space on the left side in the housing 13 partitioned by the partition plate 28 is a fan chamber 32.
　圧縮機１５は機械室３１に配置されている。圧縮機１５の内部には、冷凍サイクルを循環する冷媒を圧縮して送り出す圧縮機構（図示省略）と、圧縮機構を駆動させる電動機（図示省略）と、が設けられている。 The compressor 15 is disposed in the machine room 31. Inside the compressor 15, a compression mechanism (not shown) that compresses and delivers the refrigerant circulating in the refrigeration cycle, and a motor (not shown) that drives the compression mechanism are provided.
　送風機１６および熱交換器１７は送風機室３２に配置されている。熱交換器１７は、フィンドチューブタイプである。熱交換器１７は、筐体１３の背面、および左側面に沿って拡がり、平面視においてＬ字形を有している。送風機１６は、プロペラファンを有している。送風機１６は、回転中心線を筐体１３の前後方向へ向けて、筐体１３の前板２５と熱交換器１７との間に配置されている。送風機１６は、底板２１上に熱交換器１７と対向して配置されている。 The blower 16 and the heat exchanger 17 are disposed in the blower chamber 32. The heat exchanger 17 is a find tube type. The heat exchanger 17 extends along the back surface and the left side surface of the housing 13 and has an L shape in plan view. The blower 16 has a propeller fan. The blower 16 is disposed between the front plate 25 of the housing 13 and the heat exchanger 17 with the rotation center line directed in the front-rear direction of the housing 13. The blower 16 is disposed on the bottom plate 21 so as to face the heat exchanger 17.
　寒冷地や、降雪地域のように外気温度が低い環境下で暖房運転を継続すると、室外機１の熱交換器１７は着霜する。そこで、冷凍サイクル装置は、熱交換器１７に付着した霜を溶かす除霜運転を定期的に、もしくは着霜を検知した時に実行する。除霜運転は、冷凍サイクル中の冷媒の流れを切換える四方弁（図示省略）を駆動させ、冷凍サイクルを冷房（冷却）運転状態で行われる。四方弁の切り換えによって、暖房（加温）運転中は蒸発器として機能していた熱交換器１７が凝縮器として機能する。そして、高温冷媒が熱交換器１７内を流通する。この結果、熱交換器１７の温度が上昇し、熱交換器１７を構成するフィンやパイプに付着した霜が溶け、溶けた水が底板２１上に流れ落ちる。 When the heating operation is continued in an environment where the outside air temperature is low, such as in a cold region or a snowfall region, the heat exchanger 17 of the outdoor unit 1 frosts. Therefore, the refrigeration cycle apparatus executes a defrosting operation for melting the frost adhering to the heat exchanger 17 periodically or when frost formation is detected. The defrosting operation is performed in a cooling (cooling) operation state by driving a four-way valve (not shown) for switching the flow of refrigerant in the refrigeration cycle. By switching the four-way valve, the heat exchanger 17 which has functioned as an evaporator during heating (warming) operation functions as a condenser. Then, the high temperature refrigerant flows in the heat exchanger 17. As a result, the temperature of the heat exchanger 17 rises, the frost adhering to the fins and pipes constituting the heat exchanger 17 melts, and the melted water flows down onto the bottom plate 21.
　しかしながら、外気温度が氷点下以下の場合には、除霜運転によって生じるドレン水、つまり熱交換器１７から滴下するドレン水（排水とも言う。）が、室外機１の外部に排水される前に凍結してしまう虞がある。なお、後述するように底板２１は、略平板で、ドレン水を室外機１の外部に排水するために、主として熱交換器の下部に適宜の排水口（孔）を有している。 However, if the outside air temperature is below the freezing point, drain water produced by the defrosting operation, that is, drain water dropped from the heat exchanger 17 (also referred to as drainage) is frozen before it is drained to the outside of the outdoor unit 1 There is a risk of In addition, as described later, the bottom plate 21 is a substantially flat plate, and in order to drain drain water to the outside of the outdoor unit 1, it mainly has an appropriate drainage port (hole) in the lower part of the heat exchanger.
　そこで、本実施形態に係る室外機１は、ドレン水の凍結を防止する電熱装置を備えている。本実施形態に係る室外機１の電熱装置について説明する。 Then, the outdoor unit 1 which concerns on this embodiment is provided with the electric heating apparatus which prevents freezing of drain water. An electric heating device of the outdoor unit 1 according to the present embodiment will be described.
　図２から図４は、本発明の実施形態に係る室外機の底板２１および電熱装置４６の平面図である。 2 to 4 are plan views of the bottom plate 21 and the electric heating device 46 of the outdoor unit according to the embodiment of the present invention.
　図５および図６は、本発明の実施形態に係る室外機の底板２１および電熱装置４６の斜視図である。 5 and 6 are perspective views of the bottom plate 21 and the electric heating device 46 of the outdoor unit according to the embodiment of the present invention.
　なお、図２は、室外機の底板２１に設置された電熱装置４６の配置を説明するための図である。ヒーター４６は、固定具であり、図２中に二点鎖線で示されるブラケット４７によって底板２１に取り付けられているため、図２のような状態は実際には存在しない。図３では、電熱装置４６を底板２１に取り付けるブラケット４７を含めて図示している。また、図３では、ブラケット４７の上に設置される熱交換器１７を二点鎖線で示している。図５は、図３の斜視図に相当し、図６は、図４の斜視図に相当する。 In addition, FIG. 2 is a figure for demonstrating arrangement | positioning of the electric heating apparatus 46 installed in the baseplate 21 of the outdoor unit. Since the heater 46 is a fixture and is attached to the bottom plate 21 by a bracket 47 shown by a two-dot chain line in FIG. 2, the state as shown in FIG. 2 does not actually exist. In FIG. 3, the electric heating device 46 is illustrated including a bracket 47 that attaches to the bottom plate 21. Moreover, in FIG. 3, the heat exchanger 17 installed on the bracket 47 is shown with the dashed-two dotted line. 5 corresponds to the perspective view of FIG. 3, and FIG. 6 corresponds to the perspective view of FIG.
　図２から図４に示すように、本実施形態の係る冷凍サイクル装置の室外機１は、除霜運転時に熱交換器１７から滴下するドレン水の凍結を防止する電熱装置４１を備えている。電熱装置４１は、底板２１に設けられている。 As shown in FIGS. 2 to 4, the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment includes an electric heating device 41 for preventing freezing of drain water dropped from the heat exchanger 17 during the defrosting operation. The heating device 41 is provided on the bottom plate 21.
　ここで先ず、室外機１の熱交換器１７は、室外機１の背面の内面および左側面の内面に沿ってＬ字に折り曲げられている。以下、熱交換器１７に関し、室外機１の背面に沿っている部位を背面部１７ａと呼び、室外機１の左側面に沿っている部位を側面部１７ｂと呼ぶ。 Here, first, the heat exchanger 17 of the outdoor unit 1 is bent in an L-shape along the inner surface of the rear surface and the inner surface of the left surface of the outdoor unit 1. Hereinafter, regarding the heat exchanger 17, a portion along the back surface of the outdoor unit 1 is referred to as a back surface portion 17a, and a portion along the left side surface of the outdoor unit 1 is referred to as a side surface portion 17b.
　筐体１３の底板２１は、熱交換器１７から滴下するドレン水を室外機１の外部（外側）へ排水する排水口４３を有している。 The bottom plate 21 of the housing 13 has a drain port 43 for draining drain water dropped from the heat exchanger 17 to the outside (outside) of the outdoor unit 1.
　排水口４３は複数、設けられている。各排水口４３のほとんどが、最もドレン水が滴下する場所である熱交換器１７の底板２１への投影領域ＰＡ（図３に二点鎖線で示される熱交換器１７）内に配置されている。 A plurality of drainage ports 43 are provided. Most of the drainage ports 43 are disposed in a projection area PA (a heat exchanger 17 shown by a two-dot chain line in FIG. 3) on the bottom plate 21 of the heat exchanger 17 where the drain water drips most .
　具体的には、第一排水口４３ａは、室外機１の背面に沿って配置され、かつ室外機１の幅方向に長尺な長穴である。第一排水口４３ａは、図３に示すように、その全体が熱交換器１７の背面部１７ａの底板２１への投影領域ＰＡに納まる。 Specifically, the first drain port 43 a is disposed along the back surface of the outdoor unit 1 and is a long hole elongated in the width direction of the outdoor unit 1. As shown in FIG. 3, the first drain port 43 a entirely fits in the projection area PA on the bottom plate 21 of the back surface portion 17 a of the heat exchanger 17.
　第二排水口４３ｂは、開口面積の最も大きい排水口である。第二排水口４３ｂは、室外機１の背面に沿って配置され、かつ円形である。第二排水口４３ｂは、平面視において、送風機１６の真後ろに配置されている。第二排水口４３ｂは、熱交換器１７の底板２１への投影領域ＰＡから送風機１６側に一部はみ出している。第二排水口４３ｂは、熱交換器１７の背面部１７ａのほぼ中央に設けられている。このため、第二排水口４３ｂは、最も大量のドレン水が流れ出す排水口となっている。 The second drainage port 43b is the largest drainage port of the opening area. The second drain port 43 b is disposed along the back surface of the outdoor unit 1 and is circular. The second drain port 43 b is disposed directly behind the blower 16 in a plan view. The second drain port 43 b partially protrudes from the projection area PA of the heat exchanger 17 onto the bottom plate 21 toward the blower 16. The second drain port 43 b is provided substantially at the center of the back surface 17 a of the heat exchanger 17. For this reason, the second drain port 43b is a drain port from which the largest amount of drain water flows.
　第三排水口４３ｃは、室外機１の左側面に沿って配置され、かつ室外機１の前後方向に長尺な長穴である。第三排水口４３ｃは、熱交換器１７の側面部１７ｂの底板２１への投影領域ＰＡに納まる。この第三排水口４３ｃは、主として熱交換器１７の側面部１７ｂから滴下したドレン水を外部（下部）に排水する。 The third drain port 43 c is disposed along the left side surface of the outdoor unit 1 and is a long hole elongated in the front-rear direction of the outdoor unit 1. The third drain port 43 c is accommodated in the projection area PA on the bottom plate 21 of the side portion 17 b of the heat exchanger 17. The third drain port 43c mainly drains drain water dropped from the side surface portion 17b of the heat exchanger 17 to the outside (lower portion).
　第四排水口４３ｄは、室外機１の背面に沿って配置され、実質的に室外機１の幅方向に長尺な長穴である。第四排水口４３ｄは、第二排水口４３ｂよりも室外機１の左奥側の角部（隅部）に近い。第四排水口４３ｄは、室外機１の左奥側の角部の近くに配置されている。第四排水口４３ｄは、熱交換器１７の底板２１への投影領域ＰＡに納まる。 The fourth drain port 43 d is disposed along the back surface of the outdoor unit 1 and is a long hole substantially elongated in the width direction of the outdoor unit 1. The fourth drain port 43d is closer to a corner (corner) on the rear left side of the outdoor unit 1 than the second drain port 43b. The fourth drain port 43 d is disposed near the corner on the far left side of the outdoor unit 1. The fourth outlet 43 d fits in a projection area PA of the heat exchanger 17 onto the bottom plate 21.
　第五排水口４３ｅは、室外機１の左奥側の角部（隅部）に配置されている。第五排水口４３ｅは、Ｌ字形の熱交換器１７の屈曲部位の真下に位置し、熱交換器１７の底板２１への投影領域ＰＡに納まる。第四排水口４３ｄおよび第五排水口４３ｅは、補助的な排水口である。第四排水口４３ｄおよび第五排水口４３ｅは、主となる第二排水口４３ｂと第三排水口４３ｃでドレン水を排水しきれない可能性に配慮して設けられている。 The fifth drain port 43 e is disposed at a corner on the rear left side of the outdoor unit 1. The fifth drain port 43 e is located directly below the bending portion of the L-shaped heat exchanger 17 and fits in the projection area PA of the heat exchanger 17 onto the bottom plate 21. The fourth drainage port 43d and the fifth drainage port 43e are auxiliary drainage ports. The fourth drain port 43d and the fifth drain port 43e are provided in consideration of the possibility that the drain water can not be drained by the main second drain port 43b and third drain port 43c.
　そして、電熱装置４１は、可撓性を有し、かつ排水口４３の周囲の全部または一部に二重に敷設される二重敷設部４５を有する１本の線状のヒーター４６と、少なくともヒーター４６の二重敷設部４５を一括して底板２１に固定する固定具としてのブラケット４７と、ブラケット４７を底板２１に固定する固定部材としてのネジ４８と、を備えている。 The electric heating device 41 is flexible and has at least one linear heater 46 having a double laying portion 45 which is double laid around all or part of the periphery of the drainage port 43; A bracket 47 as a fixing tool for collectively fixing the double laying portion 45 of the heater 46 to the bottom plate 21 and a screw 48 as a fixing member for fixing the bracket 47 to the bottom plate 21 are provided.
　可撓性を有するヒーター４６、いわゆるコードヒータ―は、シーズヒーターに比べ安価であるが発熱量が小さい。ヒーター４６は、並走する２本の配線と、２本の配線の周囲を覆うシリコンゴム等でなる被覆と、を有している。ヒーター４６の一方の端４６ａ（始端）は、電源接続のための電気入力端である。ヒーター４６の他方の端４６ｂ（終端）において、内部の２本の配線は、圧着などによって電気的に接続されている。２本の配線の内の一方は、熱線であり、他方はその熱線に電気を流すための電線である。 The flexible heater 46, a so-called cord heater, is cheaper than the sheathed heater but has a smaller calorific value. The heater 46 has two wires running in parallel and a coating made of silicon rubber or the like covering the periphery of the two wires. One end 46a (starting end) of the heater 46 is an electrical input end for power supply connection. At the other end 46 b (end) of the heater 46, the two internal wires are electrically connected by crimping or the like. One of the two wires is a hot wire, and the other is a wire for supplying electricity to the hot wire.
　ヒーター４６は、ブラケット４７に保持された状態で筐体１３の底板２１の上面に敷設される。つまり、ヒーター４６は、ブラケット４７上に敷設された後、その敷設経路を保ったまま、ブラケット４７と一体で筐体１３の底板２１に敷設される。 The heater 46 is laid on the upper surface of the bottom plate 21 of the housing 13 while being held by the bracket 47. That is, after the heater 46 is laid on the bracket 47, the heater 46 is laid on the bottom plate 21 of the housing 13 integrally with the bracket 47 while maintaining the laying path.
　以下、１本の線状からなるヒーター４６の配置について、ヒーター４６の一方の端４６ａ（始端）から他方の端４６ｂ（終端）に至る敷設経路を順に説明する。ヒーター４６は、室外機１の機械室３１に設けられた電気部品箱１８（図１）内で交流電源に接続される始端（一方の端４６ａ）から始まる。ヒーター４６は、一方の端４６ａから伸びて送風機室３２内へ入り込み、一旦、第一排水口４３ａの正面を右側から左側へ横切る（図２中、４６ｃ部分）。続いて、ヒーター４６は、第二排水口４３ｂに達する前に折り返される（図２中、４６ｄ部分）。ヒーター４６は、第一排水口４３ａの開口形状に倣い、かつ第一排水口４３ａの正面側、右側、および背面側を経て第二排水口４３ｂへ伸びる。ここでヒーター４６は、第二排水口４３ｂの開口形状に倣い、かつ第二排水口４３ｂの背面側を通過する。その先でヒーター４６は、筐体１３の底板２１の縁の形状に倣って底板２１の左奥の角部を通過して第三排水口４３ｃへ向かって伸びる。続いてヒーター４６は、第二排水口４３ｂから第三排水口４３ｃへの道程で第四排水口４３ｄおよび第五排水口４３ｅよりも筐体１３の底板２１の縁の近くを通り過ぎる。その後、ヒーター４６は、第三排水口４３ｃに達すると第三排水口４３ｃの左側、正面側、および右側を経る。ヒーター４６は、第四排水口４３ｄおよび第五排水口４３ｅに達する前に折り返して再び第三排水口４３ｃへ向かって伸びる。 In the following, with respect to the arrangement of one linear heater 46, the installation route from one end 46a (starting end) of the heater 46 to the other end 46b (termination) will be described in order. The heater 46 starts from the starting end (one end 46 a) connected to the AC power supply in the electric component box 18 (FIG. 1) provided in the machine room 31 of the outdoor unit 1. The heater 46 extends from one end 46a and enters the fan chamber 32, and once crosses the front of the first outlet 43a from right to left (portion 46c in FIG. 2). Subsequently, the heater 46 is folded back before reaching the second outlet 43b (portion 46d in FIG. 2). The heater 46 follows the opening shape of the first drain port 43a, and extends to the second drain port 43b through the front side, the right side, and the back side of the first drain port 43a. Here, the heater 46 conforms to the opening shape of the second drainage port 43b, and passes through the back side of the second drainage port 43b. At the tip of the heater 46, the heater 46 follows the shape of the edge of the bottom plate 21 of the housing 13 and passes through the corner at the rear left of the bottom plate 21 and extends toward the third drainage port 43c. Subsequently, the heater 46 passes near the edge of the bottom plate 21 of the housing 13 more than the fourth drain port 43 d and the fifth drain port 43 e on the way from the second drain port 43 b to the third drain port 43 c. Thereafter, when the heater 46 reaches the third outlet 43c, it passes through the left side, the front side, and the right side of the third outlet 43c. The heater 46 is folded back before reaching the fourth outlet 43d and the fifth outlet 43e and extends again toward the third outlet 43c.
　ここまでのヒーター４６の敷設経路は、二重敷設部４５の外側経路に相当する部位を含んでいる。 The installation route of the heater 46 so far includes a portion corresponding to the outer route of the double installation part 45.
　次いで、ヒーター４６は、第三排水口４３ｃに達すると外側経路よりも内側（第三排水口４３ｃに近い部位）を通り、かつ第三排水口４３ｃの右側、正面側、および左側を経て第四排水口４３ｄへ向かって伸びる。ヒーター４６は、第四排水口４３ｄに達する前に延伸方向を右方向へ変更して第四排水口４３ｄおよび第五排水口４３ｅの正面を横切る。ヒーター４６は、第四排水口４３ｄおよび第五排水口４３ｅの正面を横切ると、第二排水口４３ｂへ向かって伸びる。ヒーター４６は、第二排水口４３ｂに達すると外側経路よりも内側（第二排水口４３ｂに近い部位）を通り、かつ第二排水口４３ｂの形状に倣って第二排水口４３ｂの背面側を横切り第一排水口４３ａへ向かって伸びる。さらにヒーター４６は、第一排水口４３ａに達すると外側経路よりも内側（第一排水口４３ａに近い部位）を通り、かつ第一排水口４３ａの背面側、左側、正面側を経て第二排水口４３ｂに向かって伸びる。続いてヒーター４６は、第二排水口４３ｂに達すると、第二排水口４３ｂの形状に倣って第二排水口４３ｂの正面側を右側から左側へ横切る。 Next, when the heater 46 reaches the third outlet 43c, it passes inside the outer path (a part near the third outlet 43c) and passes through the right side, the front side, and the left side of the third outlet 43c. It extends toward the outlet 43d. Before reaching the fourth outlet 43d, the heater 46 changes the stretching direction to the right to cross the front of the fourth outlet 43d and the fifth outlet 43e. The heater 46 extends toward the second outlet 43b when crossing the front of the fourth outlet 43d and the fifth outlet 43e. When the heater 46 reaches the second drainage port 43b, it passes inside the outer path (a part near the second drainage port 43b) and conforms to the shape of the second drainage port 43b and the back side of the second drainage port 43b It crosses and extends toward the first drain port 43a. Furthermore, when the heater 46 reaches the first drainage port 43a, it passes through the inner side (a part near the first drainage port 43a) than the outer path, and passes through the back side, the left side, and the front side of the first drainage port 43a It extends toward the mouth 43b. Subsequently, when the heater 46 reaches the second drainage port 43b, it crosses the front side of the second drainage port 43b from the right side to the left side according to the shape of the second drainage port 43b.
　ここまでのヒーター４６の敷設経路は、二重敷設部４５の内側経路に相当する部位を含んでいる。そして、ヒーター４６の敷設経路のうち、第一排水口４３ａの正面側、右側、および背面側と、第二排水口４３ｂの背面側と、第三排水口４３ｃの左側、正面側、および右側とを含み、かつ第一排水口４３ａから第二排水口４３ｂへ達する部位と、第二排水口４３ｂから第四排水口４３ｄへ向かう部位と、第五排水口４３ｅの正面側を横切る部位とは、ヒーター４６の二重敷設部４５である。 The installation path of the heater 46 so far includes a portion corresponding to the inner path of the double installation portion 45. Then, among the laying paths of the heater 46, the front side, the right side, and the back side of the first drainage port 43a, the back side of the second drainage port 43b, the left side, the front side, and the right side of the third drainage port 43c And a portion extending from the first outlet 43a to the second outlet 43b, a portion extending from the second outlet 43b to the fourth outlet 43d, and a portion crossing the front side of the fifth outlet 43e, It is a double laying portion 45 of the heater 46.
　二重敷設部４５は、排水口４３の周囲におけるドレン水の凍結を防止する観点から、排水口に流れ込むドレン水の流入経路や、流入量に応じて、適宜に設定される。つまり、排水口４３の周囲には、ヒーター４６の二重敷設部４５と、一重の敷設部とが、混在していても、排水口４３の周囲の全てを二重敷設部４５で囲んでいても良い。例えば、ヒーター４６の内側経路のうち、第三排水口４３ｃの左側を経て第四排水口４３ｄへ向かって伸びる部位を第三排水口４３ｃの背面側に迂回させて第三排水口４３ｃの周囲全体を二重敷設部４５で囲むことも可能である。 The double laying portion 45 is appropriately set according to the inflow path of the drain water flowing into the drainage port and the inflow amount from the viewpoint of preventing freezing of the drain water around the drainage port 43. That is, even if the double laying portion 45 of the heater 46 and the single laying portion are mixed around the drainage port 43, the entire circumference of the drainage port 43 is surrounded by the double laying portion 45. Also good. For example, of the inner path of the heater 46, a portion extending toward the fourth outlet 43d via the left side of the third outlet 43c is diverted to the back side of the third outlet 43c to cover the entire periphery of the third outlet 43c. It is also possible to surround in the double laying part 45.
　次いで、ヒーター４６は、第四排水口４３ｄの正面側を横切り、第三排水口４３ｃの右側を経て送風機１６の下方領域（図中、破線で示す領域１６）へ入る。ヒーター４６は、送風機１６の下方領域を右側から左側へ、蛇行しながら伸びて、終端（他方の端４６ｂ）に達する。つまり、ヒーター４６は、熱交換器１７の下部に加えて、送風機１６の下部の底板上にも敷設されている。 Next, the heater 46 crosses the front side of the fourth drain port 43d, passes through the right side of the third drain port 43c, and enters the lower region (the region 16 indicated by a broken line in the figure) of the blower 16. The heater 46 extends meanderingly from the right side to the left side of the lower region of the blower 16 to reach the end (the other end 46 b). That is, the heater 46 is also laid on the bottom plate of the lower part of the blower 16 in addition to the lower part of the heat exchanger 17.
　なお、ヒーター４６は、排水口４３を囲んでいるため、除霜運転におけるドレン水が排水口４３へ確実に達するように、底板２１に完全に密着していないことが好ましい。ヒーター４６は、底板２１の加熱に実質的な影響のない範囲、例えば０．５ミリメートル以下の隙間を底板２１から隔てることが望ましい。この寸法設定によって、ヒーター４６の下方をドレン水が流通でき、ヒーター４６の外側に滴下したドレン水もヒーター４６の下方を通過して排水口４３に流れ込むことができる。 In addition, since the heater 46 surrounds the drain port 43, it is preferable that the heater 46 is not completely in close contact with the bottom plate 21 so that drain water in the defrosting operation reliably reaches the drain port 43. The heater 46 is preferably separated from the bottom plate 21 in a range that does not substantially affect the heating of the bottom plate 21, for example, 0.5 mm or less. By this size setting, drain water can flow under the heater 46, and drain water dropped to the outside of the heater 46 can also flow under the heater 46 and flow into the drainage port 43.
　また、送風機１６の下方領域に敷設されるヒーター４６の部分は、室外機１に入り込んだ雪が送風機１６の回転を阻害するまで堆積することを防ぐため、室外機１に入り込んだ雪を溶かすようになっている。なお、積雪が多くない寒冷地に設置されるであれば、この部分のヒーター４６は、不要である。 Also, the portion of the heater 46 installed in the lower area of the blower 16 melts the snow that has entered the outdoor unit 1 in order to prevent the snow that has entered the outdoor unit 1 from accumulating until it inhibits the rotation of the blower 16. It has become. In addition, if it installs in the cold district where there is not much snow, the heater 46 of this part is unnecessary.
　ブラケット４７は、ヒーター４６の二重敷設部４５を含み、熱交換器１７の底板２１への投影領域ＰＡに掛かる第一ブラケット５１と、送風機１６の下方領域に配置される第二ブラケット５２と、を含んでいる。 The bracket 47 includes a double laying portion 45 of the heater 46, and a first bracket 51 hanging on a projection area PA of the heat exchanger 17 onto the bottom plate 21; and a second bracket 52 disposed in a lower area of the blower 16; Contains.
　第一ブラケット５１は、投影領域ＰＡ内で一体成形されている。第一ブラケット５１は例えば板金を加工した板金加工品である。 The first bracket 51 is integrally formed in the projection area PA. The first bracket 51 is, for example, a sheet metal machined product obtained by processing a sheet metal.
　第一ブラケット５１は、投影領域ＰＡ内に敷設されるヒーター４６の敷設経路、換言すると二重敷設部４５を含むヒーター４６の敷設経路に倣う。また、第一ブラケット５１は、補強のための架橋部５３を有している。架橋部５３は、ヒーター４６に覆い被らない。架橋部５３は、第１ブラケット５１の全体強度を上げるとともに、ヒーター４６を敷設して一体化された第一ブラケット５１の取り扱いを向上させる。架橋部５３は、例えば、平面視において第一排水口４３ａの右側（第一架橋部５３ａ）、第二排水口４３ｂの左右両側（第二架橋部５３ｂ）、第一排水口４３ａと第二排水口４３ｂとの間の敷設経路の適宜の部位（第三架橋部５３ｃ）、第三排水口４３ｃの背面側（第四架橋部５３ｄ）、および第三排水口４３ｃの近傍で折り返すヒーター４６のループ部と送風機１６の下方領域へ侵入するヒーター４６の途中部分（第五架橋部５３ｅ）に設けられている。 The first bracket 51 follows the laying path of the heater 46 laid in the projection area PA, in other words, the laying path of the heater 46 including the double laying portion 45. The first bracket 51 also has a bridge portion 53 for reinforcement. The bridge portion 53 does not cover the heater 46. The bridge portion 53 improves the overall strength of the first bracket 51 and improves the handling of the integrated first bracket 51 by laying the heater 46. For example, in the plan view, the bridging portion 53 is the right side of the first drain 43a (first bridge 53a), both left and right sides of the second drain 43b (second bridge 53b), and the first drain 43a and the second drain. The appropriate portion of the laying path between the mouth 43b (third bridge portion 53c), the back side of the third outlet 43c (fourth bridge portion 53d), and the loop of the heater 46 that is folded back in the vicinity of the third outlet 43c It is provided in the middle part (5th bridge | crosslinking part 53e) of the heater 46 which penetrate | invades into the lower area | region of the part and the air blower 16. FIG.
　なお、第一ブラケット５１は、複数の部品に分割されていても良い。例えば、第一ブラケット５１は、第一排水口４３ａの周囲の二重敷設部４５を含む一体部品と、第二排水口４３ｂの周囲の二重敷設部４５を含む一体部品と、第三排水口４３ｃの周囲の二重敷設部４５を含む一体部品と、に分割されていても良い。 The first bracket 51 may be divided into a plurality of parts. For example, the first bracket 51 is an integral part including the double laying portion 45 around the first drain port 43a, an integral part including the double laying portion 45 around the second drain port 43b, and the third drainage port It may be divided into an integral part including a double laying portion 45 around 43c.
　第二ブラケット５２は、送風機１６の下方領域を左右方向（室外機１の幅方向）へ直線状に伸びる。 The second bracket 52 linearly extends the lower region of the blower 16 in the left-right direction (the width direction of the outdoor unit 1).
　なお、ヒーター４６の一部は、第二ブラケット５２の延伸方向へ交差するように第二ブラケット５２から飛び出して蛇行している。この蛇行部分は、第一ブラケット５１および第二ブラケット５２にヒーター４６を敷設する際に、ヒーター４６の長さの個体差（製品毎のばらつき）の調整に用いられる。第一ブラケット５１および第二ブラケット５２にヒーター４６を敷設したとき、ヒーター４６の末端に余長がある場合には、蛇行部分により多くの長さを割り当てて、余長分を調整する。 In addition, a part of the heater 46 protrudes from the second bracket 52 so as to cross in the extending direction of the second bracket 52 and meanders. When laying the heater 46 on the first bracket 51 and the second bracket 52, the meandering portion is used for adjustment of individual differences (variations among products) of the length of the heater 46. When the heater 46 is laid on the first bracket 51 and the second bracket 52, if there is an extra length at the end of the heater 46, more length is allocated to the meander portion to adjust the extra length.
　ネジ４８は、例えば、第一架橋部５３ａ、第二排水口４３ｂの背面側、第四排水口４３ｄの左側、第四架橋部５３ｄ、第三排水口４３ｃの右側、第二排水口４３ｂの右側から送風機１６の下方領域へ向かう敷設経路の途中部分、およびその末端部において第一ブラケット５１を底板２１に固定する。なお、第一ブラケット５１のネジ止め位置には、後述するネジ穴５７を有する固定フランジ５８が第一ブラケット５１に一体に設けられている。 The screw 48 is, for example, the back side of the first bridge 53a and the second outlet 43b, the left side of the fourth outlet 43d, the right side of the fourth bridge 53d and the third outlet 43c, and the right side of the second outlet 43b. The first bracket 51 is fixed to the bottom plate 21 at an intermediate portion of the laying path from the lower portion toward the lower region of the blower 16 and at the end portion thereof. In addition, at the screwing position of the first bracket 51, a fixing flange 58 having a screw hole 57 described later is provided integrally with the first bracket 51.
　また、ネジ４８は、例えば、第二ブラケット５２の適宜の箇所を底板２１に固定する。 Also, the screw 48 fixes, for example, an appropriate portion of the second bracket 52 to the bottom plate 21.
　図７は、本発明の実施形態に係る室外機のヒーターをブラケットに敷設した状態の斜視図である。 FIG. 7 is a perspective view of a state in which the heater of the outdoor unit according to the embodiment of the present invention is installed on a bracket.
　図８および図９は、本発明の実施形態に係る室外機のブラケットの斜視図である。 8 and 9 are perspective views of the bracket of the outdoor unit according to the embodiment of the present invention.
　なお、図８は、ブラケット４７を上側から見た斜視図であり、図９は、ブラケット４７を下側から見た斜視図である。 FIG. 8 is a perspective view of the bracket 47 as viewed from the upper side, and FIG. 9 is a perspective view of the bracket 47 as viewed from the lower side.
　図７に示すように、本実施形態に係る冷凍サイクル装置の室外機１のヒーター４６は、室外機１の底板２１へ敷設するより前に、ブラケット４７に敷設されて一体化される。 As shown in FIG. 7, the heater 46 of the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment is laid and integrated on the bracket 47 before laying on the bottom plate 21 of the outdoor unit 1.
　そのため、図８から図９に示すように、本実施形態に係る冷凍サイクル装置の室外機１のブラケット４７は、ブラケット４７に一体成形され、かつ塑性変形することによってブラケット４７にヒーター４６を保持させるヒーター保持片５５を備えている。 Therefore, as shown in FIG. 8 to FIG. 9, the bracket 47 of the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment is integrally molded with the bracket 47 and holds the heater 46 by plastic deformation. A heater holding piece 55 is provided.
　ここで先ず、ブラケット４７は、ヒーター４６を保持するＵ字形の開放断面を有している。ブラケット４７は、Ｕ字形の開放部分を底板２１へ向けている。ヒーター４６の熱が極力、底板２１を温め、ブラケット４７側から放熱してしまうことのないように、ブラケット４７の側壁（筐体１３の底板２１に対して立っている壁）の大部分は、筐体１３の底板２１に達することなく、筐体１３の底板２１から離間している。 Here, first, the bracket 47 has a U-shaped open cross section for holding the heater 46. The bracket 47 has the U-shaped open portion directed to the bottom plate 21. Most of the side walls of the bracket 47 (the wall standing against the bottom plate 21 of the housing 13) are such that the heat of the heater 46 warms the bottom plate 21 as much as possible and releases heat from the bracket 47 side. It is separated from the bottom plate 21 of the housing 13 without reaching the bottom plate 21 of the housing 13.
　ヒーター保持片５５は、ブラケット４７と一体の板金で形成されている。ヒーター保持片５５は、ブラケット４７の側壁から突出している。ヒーター保持片５５は、ブラケット４７の側壁から真っ直ぐに伸びた状態で、ブラケット４７に敷設されたヒーター４６よりも突出している。この突出部分の根元には、楔状の切欠きが設けられている。ヒーター保持片５５は、この細くなっている切欠き部分で容易に折り曲げることができる。ヒーター保持片５５を切欠き部分で折り曲げることによって、ヒーター４６は、ブラケット４７に固定される。ブラケット４７を底板２１へネジ止め固定すると、ヒーター保持片５５は底板２１に密着することになる。このため、ヒーター保持片５５で保持されていないヒーター４６の大部分においては、ヒーター保持片５５の厚み、すなわち、ブラケット４７を形成する板金の厚み分だけ底板２１とヒーター４６との間に隙間Ｈが形成される。つまり、ブラケット４７の板金の厚みを適切に選定することによって、底板２１とヒーター４６との間の隙間を適切に確保することができる。 The heater holding piece 55 is formed of a sheet metal integral with the bracket 47. The heater holding piece 55 protrudes from the side wall of the bracket 47. The heater holding piece 55 projects from the heater 46 laid on the bracket 47 while extending straight from the side wall of the bracket 47. At the root of this projecting portion, a bowl-shaped notch is provided. The heater holding piece 55 can be easily bent at this narrowed notch. The heater 46 is fixed to the bracket 47 by bending the heater holding piece 55 at the notch portion. When the bracket 47 is screwed to the bottom plate 21, the heater holding piece 55 is in close contact with the bottom plate 21. Therefore, in most of the heater 46 not held by the heater holding piece 55, the gap H between the bottom plate 21 and the heater 46 by the thickness of the heater holding piece 55, that is, the thickness of the sheet metal forming the bracket 47. Is formed. That is, by appropriately selecting the thickness of the metal plate of the bracket 47, the gap between the bottom plate 21 and the heater 46 can be appropriately secured.
　ヒーター保持片５５は、ブラケット４７の適宜の箇所に設けられている。例えば、ヒーター保持片５５は、可撓なヒーター４６が屈曲して敷設されている部分の周囲に設けられていたり、ヒーター４６の非固定の直線部分の長さが５０ミリメートルを超えないように設けられていたり、ヒーター４６の二重敷設部４５に設けられていたりする。 The heater holding piece 55 is provided at an appropriate position of the bracket 47. For example, the heater holding piece 55 is provided around the portion where the flexible heater 46 is bent and laid, or the length of the non-fixed linear portion of the heater 46 does not exceed 50 mm. Or may be provided in the double laying portion 45 of the heater 46.
　ヒーター保持片５５は、折り曲げられてヒーター４６を直接的に保持するだけでなく、例えば、底板２１のスリット（図示省略）に差し込まれ、底板２１の裏面（底面）側で折り曲げられても良い。この場合、ヒーター保持片５５は、ヒーター４６をブラケット４７に保持するのみならず、ブラケット４７を底板２１に固定する固定部材の役割も兼ねる。例えば、ネジ４８を配置する余裕のない場所で、特に有効である。 The heater holding piece 55 is not only bent to directly hold the heater 46, but may be inserted into a slit (not shown) of the bottom plate 21 and bent on the back (bottom) side of the bottom plate 21, for example. In this case, the heater holding piece 55 not only holds the heater 46 on the bracket 47 but also serves as a fixing member for fixing the bracket 47 to the bottom plate 21. For example, it is particularly effective where there is no room for arranging the screw 48.
　また、ブラケット４７は、ネジ４８を挿し通すネジ穴５７を有する固定フランジ５８を備えている。固定フランジ５８は、ネジ４８の配置に対応している。この固定フランジ５８も板金製のブラケット４７に一体成型されている。固定フランジ５８は、ブラケット４７を含む板金から折り曲げによって成形されている。 Also, the bracket 47 is provided with a fixing flange 58 having a screw hole 57 through which the screw 48 is inserted. The fixing flange 58 corresponds to the arrangement of the screws 48. The fixing flange 58 is also integrally molded with a sheet metal bracket 47. The fixing flange 58 is formed by bending a sheet metal including the bracket 47.
　図１０は、本発明の実施形態に係る室外機のヒーターの二重敷設部における断面図である。 FIG. 10: is sectional drawing in the double installation part of the heater of the outdoor unit which concerns on embodiment of this invention.
　図８および図９に加えて、図１０に示すように、本実施形態に係る冷凍サイクル装置の室外機１のヒーター４６は、熱線６１と、熱線６１に平行する電線６２と、熱線６１および電線６２を束ねる外被６３と、を備えている。外被６３は、シリコンゴム等の柔軟性を有する被覆である。ヒーター４６が通電されると、熱線６１が高温に発熱し、電線６２はほとんど発熱しない。 In addition to FIGS. 8 and 9, as shown in FIG. 10, the heater 46 of the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment includes the heating wire 61, the electric wire 62 parallel to the heating wire 61, the heating wire 61 and the electric wire And 62 an outer cover 63 for bundling. The jacket 63 is a flexible coating such as silicone rubber. When the heater 46 is energized, the heating wire 61 generates heat to a high temperature, and the wire 62 hardly generates heat.
　ブラケット４７は、ヒーター４６の低温側よりも高熱側が底板２１の近くに配置されるようにヒーター４６を保持している。換言すると、熱線６１は、電線６２の下側であって、底板２１の近い側に配置される。これによって底板２１側を効率的に加熱することができる。 The bracket 47 holds the heater 46 such that the high heat side of the heater 46 is located closer to the bottom plate 21 than the low temperature side of the heater 46. In other words, the heat wire 61 is disposed on the lower side of the wire 62 and on the near side of the bottom plate 21. Thus, the bottom plate 21 side can be efficiently heated.
　そして、第一ブラケット５１は、二重敷設部４５のヒーター４６の間に挟まる仕切板６５を備えている。 The first bracket 51 is provided with a partition plate 65 sandwiched between the heaters 46 of the double laying portion 45.
　仕切板６５は、第一ブラケット５１に一体成形されている。仕切板６５は、第一ブラケット５１の一部に抜き加工の切り込みを設け、この切り込みを天板の裏側へ向かって折り曲げた、所謂切り曲げ加工によって、第一ブラケット５１に一体成形されている。そのため、第一ブラケット５１は、仕切板６５を設けた箇所に開口６６を有している。仕切板６５は、第一ブラケット５１の幅方向（延伸方向に交差する方向）において、実質的に中央に配置されている。換言すると、仕切板６５は、ブラケット４７の内側を幅方向に二等分している。そして、この二分された凹部（ブラケット４７の内側）のそれぞれについて、熱線６１を開口側に配置し、電線６２を奥側に配置してヒーター４６が収納される。 The partition plate 65 is integrally formed with the first bracket 51. The partition plate 65 is formed integrally with the first bracket 51 by a so-called cutting and bending process in which a cut is formed in a part of the first bracket 51 and the cut is bent toward the back side of the top plate. Therefore, the first bracket 51 has an opening 66 at a position where the partition plate 65 is provided. The partition plate 65 is disposed substantially at the center in the width direction of the first bracket 51 (the direction intersecting the extending direction). In other words, the partition plate 65 bisects the inside of the bracket 47 in the width direction. Then, the heat wire 61 is disposed on the opening side, the electric wire 62 is disposed on the back side, and the heater 46 is accommodated for each of the divided recesses (inside of the bracket 47).
　なお、ヒーター４６の二重敷設部４５は、第一ブラケット５１の側壁と仕切板６５との間に挟み込まれて保持される。また、ヒーター４６の二重敷設部４５以外の部位、つまり単に一重となる部分のヒーター４６は、熱線６１を開口側に配置し、電線６２を奥側に配置して、ブラケット４７の両側壁に挟み込まれて保持される。 The double laying portion 45 of the heater 46 is sandwiched and held between the side wall of the first bracket 51 and the partition plate 65. Further, the heater 46 of the portion other than the double laying portion 45 of the heater 46, that is, the portion which is simply a single layer, arranges the heat wire 61 on the opening side and arranges the electric wire 62 on the back side. It is pinched and held.
　本実施形態に係る冷凍サイクル装置の室外機１は、可撓性を有し、かつ排水口４３の周囲の全部または一部に二重に敷設される二重敷設部４５を有する線状のヒーター４６を備えている。そのため、室外機１は、従来のシーズヒーターよりも単位面積あたりの発熱能力が劣る、可撓なヒーター４６を備える一方で、ヒーター４６の敷設経路の自由度を高めやすい。つまり、室外機１は、ドレン水の凍結が発生しやすい、ドレン水が集められる排水口４３の周囲の全部または一部にヒーター４６を二重に敷設し、排水口４３部分の発熱量を高めて集中的に温めて、円滑な排水を可能にする。また、室外機１は、排水口４３の周囲に比べて低温でも、ドレン水の流れやすさに影響の無い部位では、ヒーター４６を二重に敷設することなく、余分な電力の消費を抑制する。 The outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment is a linear heater that has flexibility and has a double laying portion 45 that is double laid around all or part of the outlet 43. It has 46. Therefore, the outdoor unit 1 is provided with a flexible heater 46 which is inferior in heat generation capacity per unit area to the conventional sheathed heater, but it is easy to increase the degree of freedom of the laying path of the heater 46. That is, the outdoor unit 1 doubles the heater 46 on all or part of the periphery of the drainage port 43 where drainage water is easily collected and drainage water is collected, thereby increasing the calorific value of the drainage port 43 Intensively warm and allow smooth drainage. In addition, the outdoor unit 1 suppresses the consumption of excess power without laying the heater 46 double even at a portion that does not affect the flow of drain water, even at a low temperature compared to the periphery of the drainage port 43. .
　本実施形態に係る冷凍サイクル装置の室外機１は、少なくともヒーター４６の二重敷設部４５を一括して底板２１に固定するブラケット４７と、を備えている。そのため、室外機１は、ヒーター４６の二重敷設部４５をブラケット４７で確実に保持し、当該箇所の加熱能力を確実に保障することができる。 The outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment includes a bracket 47 for collectively fixing at least the double laying portion 45 of the heater 46 to the bottom plate 21. Therefore, the outdoor unit 1 can reliably hold the double laying portion 45 of the heater 46 by the bracket 47, and can ensure the heating capacity of the relevant portion with certainty.
　また、本実施形態に係る冷凍サイクル装置の室外機１は、ブラケット４７に一体成形されて二重敷設部４５のヒーター４６の間に挟まる仕切板６５を備えている。そのため、室外機１は、圧縮機１５や送風機１６の運転にともなう振動や、運搬時の振動によっても可撓なヒーター４６の二重敷設部４５を確実に保持しておくことができる。 Further, the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment is provided with the partition plate 65 which is integrally formed with the bracket 47 and is sandwiched between the heaters 46 of the double laying portion 45. Therefore, the outdoor unit 1 can reliably hold the double laying portion 45 of the flexible heater 46 even by vibration caused by the operation of the compressor 15 or the blower 16 or vibration during transportation.
　さらに、本実施形態に係る冷凍サイクル装置の室外機１は、塑性変形することによってヒーター４６をブラケット４７に保持させるヒーター保持片５５を備えている。そのため、室外機１は、ヒーター４６を敷設する際に、二重敷設部４５をブラケット４７で確実に保持し、当該箇所の敷設に掛かる労力を軽減できる。 Furthermore, the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment includes the heater holding piece 55 that holds the heater 46 on the bracket 47 by plastic deformation. Therefore, when laying the heater 46, the outdoor unit 1 can reliably hold the double laying portion 45 with the bracket 47, and can reduce the effort required to lay the place.
　本実施形態に係る冷凍サイクル装置の室外機１は、ブラケット４７と底板２１との間にヒーター保持片５５が位置することでヒーター４６と底板２１との間の隙間が確保される。そのため、室外機１は、ブラケット４７の板金の厚みを適切に選定することによって、底板２１とヒーター４６との間の隙間を、例えば０．５ミリメートル以下となるように適切に確保することができる。 In the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment, the heater holding piece 55 is positioned between the bracket 47 and the bottom plate 21 so that a gap between the heater 46 and the bottom plate 21 is secured. Therefore, the outdoor unit 1 can appropriately secure a gap between the bottom plate 21 and the heater 46 to be, for example, 0.5 mm or less by appropriately selecting the thickness of the metal plate of the bracket 47. .
　さらにまた、本実施形態に係る冷凍サイクル装置の室外機１は、全部または一部が熱交換器１７の底板２１への投影領域ＰＡ内に配置されている複数の排水口４３を備えている。室外機１は、それら複数の排水口４３の周囲に可撓なヒーター４６を容易にルーティング（敷設）することができる。 Furthermore, the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment is provided with a plurality of drainage ports 43, all or part of which are disposed in the projection area PA on the bottom plate 21 of the heat exchanger 17. The outdoor unit 1 can easily route (lay) the flexible heater 46 around the plurality of drainage ports 43.
　また、本実施形態に係る冷凍サイクル装置の室外機１は、熱交換器１７の底板２１への投影領域ＰＡ内で一体成形されるブラケット４７を備えている。そのため、室外機１は、二重敷設部４５をブラケット４７で確実に保持し、かつ投影領域ＰＡ内に可撓なヒーター４６を一括して容易に敷設できる。 In addition, the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment includes the bracket 47 that is integrally molded in the projection area PA on the bottom plate 21 of the heat exchanger 17. Therefore, the outdoor unit 1 reliably holds the double laying portion 45 by the bracket 47 and can easily lay the flexible heater 46 collectively in the projection area PA.
　さらに、本実施形態に係る冷凍サイクル装置の室外機１は、電線６２よりも底板２１の近くに配置される熱線６１を有するヒーター４６を備えている。つまり、室外機１は、可撓なヒーター４６をブラケット４７で確実に保持することによって、熱線６１を電線６２よりも底板２１側へ確実に配置することができる。 Furthermore, the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment includes the heater 46 having the heat wire 61 disposed closer to the bottom plate 21 than the electric wire 62. That is, the outdoor unit 1 can reliably arrange the heating wire 61 closer to the bottom plate 21 than the electric wire 62 by holding the flexible heater 46 securely by the bracket 47.
　したがって、本実施形態に係る冷凍サイクル装置の室外機１によれば、シーズヒーターに比べて単位面積あたりの発熱能力が劣る可撓なヒーター４６を用いても、除霜運転によって生じるドレン水を確実に排水することができる。 Therefore, according to the outdoor unit 1 of the refrigeration cycle apparatus according to the present embodiment, the drain water generated by the defrosting operation can be assured even when using the flexible heater 46 whose heat generation capacity per unit area is inferior to the sheathed heater. Can be drained.
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 While certain embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.
　１…室外機、１１…空気取入口、１２…空気吹出口、１３…筐体、１５…圧縮機、１６…送風機、１７…熱交換器、１７ａ…背面部、１７ｂ…側面部、１８…電気部品箱、２１…底板、２２ａ…左側板、２２ｂ…右側板、２５…前板、２６…フィンガード、２７…天板、２８…仕切板、２９…ファンガード、３１…機械室、３２…送風機室、４１…電熱装置、４３…排水口、４３ａ…第一排水口、４３ｂ…第二排水口、４３ｃ…第三排水口、４３ｄ…第四排水口、４３ｅ…第五排水口、４５…二重敷設部、４６…ヒーター、４６ａ…ヒーターの一方の端（始端）、４６ｂ…ヒーターの他方の端（終端）、４６ｃ…ヒーターの第一排水口正面横切り部分、４６ｃ…ヒーターの第一排水口折返し部分、４７…ブラケット（固定具）、４８…ネジ（固定部材)、５１…第一ブラケット、５２…第二ブラケット、５３…架橋部、５３ａ…第一架橋部、５３ｂ…第二架橋部、５３ｃ…第三架橋部、５３ｄ…第四架橋部、５３ｅ…第五架橋部、５５…ヒーター保持片、５７…ネジ穴、５８…固定フランジ、６１…熱線、６２…電線、６３…外被、６５…仕切板、６６…開口。 DESCRIPTION OF SYMBOLS 1 ... Outdoor unit, 11 ... Air intake, 12 ... Air blower outlet, 13 ... Housing | casing, 15 ... Compressor, 16 ... Blower, 17 ... Heat exchanger, 17a ... Back part, 17b ... Side part, 18 ... Electricity Parts box 21 bottom plate 22a left side plate 22b right side plate 25 front plate 26 fingered 27 top plate 28 partition plate 29 fan guard 31 machine room 32 blower Room, 41: Electric heating device, 43: Drain, 43a: First drain, 43b: Second drain, 43c: Third drain, 43d: Fourth drain, 43e: Fifth drain, 45: Two Heavy laying part, 46: heater, 46a: one end of the heater (starting end), 46b: the other end of the heater (end), 46c: the first outlet of the heater front cross section, 46c: the first outlet of the heater Folded part, 47 ... bracket (fixing device), 48 ... screw Fixing members) 51: first bracket 52: second bracket 53: bridge portion 53a first bridge portion 53b second bridge portion 53c third bridge portion 53d fourth bridge portion 53e ... fifth bridge portion, 55 ... heater holding piece, 57 ... screw hole, 58 ... fixed flange, 61 ... heat wire, 62 ... electric wire, 63 ... jacket, 65 ... partition plate, 66 ... opening.

Claims (9)

  1. 排水口を有する底板と、
    　可撓性を有し、かつ前記排水口の周囲の全部または一部に二重に敷設される二重敷設部を有する線状のヒーターと、を備える冷凍サイクル装置の室外機。     A bottom plate having a drain,
    An outdoor unit of a refrigeration cycle apparatus comprising: a flexible, and a linear heater having a double laying portion laid in a double manner in all or a part of the periphery of the drainage port.
  2. 少なくとも前記ヒーターの前記二重敷設部を一括して前記底板に固定する固定具と、
    　前記固定具を前記底板に固定する固定部材と、を備える請求項１記載の冷凍サイクル装置の室外機。     A fixture for collectively fixing at least the double laying portion of the heater to the bottom plate;
    The outdoor unit of the refrigeration cycle apparatus according to claim 1, further comprising: a fixing member configured to fix the fixing member to the bottom plate.
  3. 前記固定具に一体成形され、前記二重敷設部における前記ヒーターの間に挟まる仕切板を備える請求項２に記載の冷凍サイクル装置の室外機。 The outdoor unit of the refrigeration cycle apparatus according to claim 2, further comprising: a partition plate integrally molded with the fixture and sandwiched between the heaters in the double laying portion.
  4. 前記固定具に一体成形され、かつ塑性変形することによって前記ヒーターを前記固定具に保持させるヒーター保持片を備える請求項２または３に記載の冷凍サイクル装置の室外機。 The outdoor unit of the refrigeration cycle apparatus according to claim 2 or 3, further comprising a heater holding piece that is integrally molded with the fixture and holds the heater on the fixture by plastic deformation.
  5. 前記固定具は、板金からなり、前記固定具と前記底板との間に前記ヒーター保持片が位置することで前記ヒーターと前記底板との間の隙間が確保される請求項２から４のいずれか１項に記載の冷凍サイクル装置の室外機。 The said fixing tool consists of sheet metal, and the clearance gap between the said heater and the said baseplate is ensured because the said heater holding piece is located between the said fixing tool and the said baseplate. An outdoor unit of the refrigeration cycle apparatus according to item 1.
  6. 前記底板の上方に配置される熱交換器を備え、
    　前記排水口は複数あり、かつそれぞれの前記排水口の全部または一部は、前記熱交換器の前記底板への投影領域内に配置されている請求項１から５のいずれか１項に記載の冷凍サイクル装置の室外機。     A heat exchanger disposed above the bottom plate,
    6. The water outlet according to any one of claims 1 to 5, wherein there are a plurality of water outlets, and all or part of each water outlet is disposed in a region projected onto the bottom plate of the heat exchanger. Outdoor unit of refrigeration cycle equipment.
  7. 前記底板の上方に配置される熱交換器を備え、
    　前記排水口は複数あり、かつそれぞれの前記排水口の全部または一部は、前記熱交換器の前記底板への投影領域内に配置され
    　前記固定具は、前記投影領域内で一体成形されている請求項２から５のいずれか１項に記載の冷凍サイクル装置の室外機。     A heat exchanger disposed above the bottom plate,
    There are a plurality of the drainage ports, and all or a part of each of the drainage ports is disposed in a projection area of the heat exchanger on the bottom plate, and the fixture is integrally formed in the projection area. The outdoor unit of the refrigerating cycle apparatus of any one of Claims 2-5.
  8. 前記ヒーターは、熱線と、前記熱線に平行する電線とを一体化した線状であり、
    　前記熱線は、前記電線よりも前記底板の近くに配置される請求項１から７のいずれか１項に記載の冷凍サイクル装置の室外機。     The heater has a linear shape in which a heating wire and a wire parallel to the heating wire are integrated,
    The outdoor unit of the refrigeration cycle apparatus according to any one of claims 1 to 7, wherein the heat wire is disposed closer to the bottom plate than the electric wire.
  9. 前記底板上に前記熱交換器と対向して配置された送風機を備え、
    　この送風機の下部の前記底板上に前記ヒーターを敷設した請求項６または７に記載の冷凍サイクル装置の室外機。     A blower disposed on the bottom plate opposite to the heat exchanger;
    The outdoor unit of the refrigeration cycle apparatus according to claim 6 or 7, wherein the heater is laid on the bottom plate of the lower portion of the blower.
PCT/JP2017/045883 2017-12-21 2017-12-21 Outdoor unit for refrigeration cycle device WO2019123596A1 (en)

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PCT/JP2017/045883 WO2019123596A1 (en) 2017-12-21 2017-12-21 Outdoor unit for refrigeration cycle device
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