WO2010087481A1 - Air conditioning device - Google Patents

Air conditioning device Download PDF

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Publication number
WO2010087481A1
WO2010087481A1 PCT/JP2010/051363 JP2010051363W WO2010087481A1 WO 2010087481 A1 WO2010087481 A1 WO 2010087481A1 JP 2010051363 W JP2010051363 W JP 2010051363W WO 2010087481 A1 WO2010087481 A1 WO 2010087481A1
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WO
WIPO (PCT)
Prior art keywords
electrical component
component module
casing
refrigerant
air
Prior art date
Application number
PCT/JP2010/051363
Other languages
French (fr)
Japanese (ja)
Inventor
則博 竹仲
亮 藤本
Original Assignee
ダイキン工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Publication of WO2010087481A1 publication Critical patent/WO2010087481A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20Electric components for separate outdoor units
    • F24F1/24Cooling of electric components
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46Component arrangements in separate outdoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • F24F2013/207Casings or covers with control knobs; Mounting controlling members or control units therein

Definitions

  • the present invention relates to an air conditioner that performs a vapor compression refrigeration cycle by circulating a refrigerant.
  • an air conditioner described in Patent Document 1 is known as an air conditioner that performs a vapor compression refrigeration cycle by circulating a refrigerant.
  • the air conditioning apparatus 200 includes an outdoor unit 202.
  • This outdoor unit 202 has a casing 204, and a part of the refrigerant circuit 206 is disposed inside the seeding 204.
  • a plurality of electrical components including a compressor 208, a heat exchanger 210, a blower fan 212, and the like, and a power element (not shown) such as an inverter as these control systems are mounted inside the casing 204.
  • An electrical component module (electrical component box) 220 is disposed.
  • the power element mounted on the electrical component module 220 generates heat when the air conditioner 200 is operated, and becomes high temperature. Therefore, in the air conditioner 200, the refrigerant passage (cooling pipe) 214 constituting a part of the refrigerant circuit 206 is thermally connected to the power element, and the power element is exchanged by heat exchange between the refrigerant in the refrigerant circuit 206 and the power element. Is cooled.
  • the refrigerant passage 214 is disposed in the vicinity of the electrical component module 220 in order to thermally connect the refrigerant passage 214 to the power element.
  • condensation or frost may be generated on the surface of the refrigerant passage 214 depending on the temperature of the refrigerant flowing in the refrigerant passage 214. Therefore, there is a concern that condensation or the like generated on the surface of the refrigerant passage 214 reaches the electric component module 220 through the refrigerant passage 214 and the electric component mounted on the electric component module 220 gets wet and is damaged. .
  • an object of the present invention is to provide an air conditioner in which an electrical component mounted on the electrical component module is hardly wetted even if a refrigerant passage is disposed in the vicinity of the electrical component module.
  • the present invention includes a refrigerant circuit in which a refrigerant circulates, a casing, a first circuit board that is disposed inside the casing and on which a power element is mounted, and a second circuit board on which an electrical component other than the power element is mounted. And an electrical component module having a cooled portion joined to the power element, and a cooling portion that is thermally connected to the refrigerant of the refrigerant circuit and cools the cooled portion,
  • the first circuit board is disposed on the opposite side of the cooling part with the cooled part interposed therebetween, and the second circuit board is disposed on the upper side of the cooling part.
  • FIG. 2 is a perspective view of the outdoor unit.
  • FIG. 3 is a perspective view of the outdoor unit, in which the second front plate is removed.
  • FIG. 4 is a perspective view of the outdoor unit, which shows a state in which the second front plate is removed.
  • FIG. 5 is a plan view of the outdoor unit, in which the second front plate is removed and the top plate is removed.
  • FIG. 6 is a perspective view of the outdoor unit.
  • FIG. 6 is a perspective view showing a state in which the first connection pipe and the second connection pipe are pulled out.
  • FIG. 7A is a partially enlarged perspective view of the upper part of the machine room, and FIG. 7B shows a state where the oil separator is removed from FIG.
  • FIG. 8 is a side view of the outdoor unit, in which the second front plate, the right side plate, the back side plate and the top plate are removed.
  • FIG. 9 is a perspective view from the back side of the electrical component module provided in the outdoor unit, and this figure shows a state in which the back protective cover is removed.
  • FIG. 10 is a perspective view from the lower front side of the electrical component module. This figure shows the terminal block in the open position.
  • FIG. 11 is a perspective view from above the front side of the electrical component module, and this figure shows the terminal block in the open position.
  • FIG. 12 is a perspective view from above the front side of the electrical component module, and this figure shows the terminal block in the closed position.
  • FIG. 10 is a perspective view from the lower front side of the electrical component module. This figure shows the terminal block in the open position.
  • FIG. 11 is a perspective view from above the front side of the electrical component module, and this figure shows the terminal block in the open position.
  • FIG. 12 is a perspective view from above the front
  • FIG. 13 is a diagram schematically showing a connection state between the power element mounted on the first substrate portion and the heat transfer plate.
  • FIG. 14A is a plan view schematically showing the flow of outdoor air taken into the outdoor unit
  • FIG. 14B is a schematic view showing the flow of outdoor air taken into the outdoor unit.
  • FIG. 15 is a diagram showing a procedure for disposing the electrical component module in the outdoor unit, and this figure shows a state before the electrical component module with the terminal block in the open position is lowered so as to be inserted into the back side of the refrigerant jacket.
  • FIG. FIG. 16 is a view showing a state in which the electrical component module in the state of FIG.
  • FIG. 17 is a perspective view of an outdoor unit of an air conditioner according to another embodiment, and this drawing shows the arrangement of components inside the outdoor unit.
  • FIG. 18 is a diagram schematically showing a piping system of a conventional air conditioner.
  • FIG. 1 shows a piping system of an air conditioner 10 according to the present embodiment.
  • the air conditioner 10 is a heat pump type air conditioner 10 capable of cooling operation and heating operation.
  • the air conditioner 10 includes an outdoor unit 11 installed outside and an indoor unit 12 installed indoors.
  • the outdoor unit 11 and the indoor unit 12 are connected via a first connection pipe 13 and a second connection pipe 14.
  • the air conditioner 10 is provided with a refrigerant circuit 18 in which pipes including the connection pipes 13 and 14 are connected in a closed circuit shape.
  • the refrigerant circuit 18 is mainly provided with an indoor heat exchanger 20, a compressor 23, an oil separator 24, an outdoor heat exchanger 25, an expansion valve 26 that is an expansion mechanism, an accumulator 27, and a four-way switching valve 28.
  • a refrigerant is circulated to perform a vapor compression refrigeration cycle.
  • the indoor heat exchanger 20 is a heat exchanger for exchanging heat between the refrigerant and room air, and is provided in the indoor unit 12.
  • the indoor heat exchanger 20 for example, a cross fin type fin-and-tube heat exchanger or the like can be employed.
  • An indoor fan (not shown) for blowing indoor air to the indoor heat exchanger 20 is provided in the vicinity of the indoor heat exchanger 20.
  • Compressor 23, oil separator 24, outdoor heat exchanger 25, expansion valve 26, accumulator 27, and four-way switching valve 28 are provided in outdoor unit 11. These are all housed in the casing 30 (see FIGS. 2 to 5).
  • the compressor 23 has a suction port, a compression mechanism, and a discharge port, compresses the refrigerant sucked from the suction port by the compression mechanism, and discharges it from the discharge port.
  • various compressors such as a scroll compressor, are employable, for example.
  • the oil separator 24 is for separating the lubricating oil from the mixed fluid of the lubricating oil and the refrigerant discharged from the compressor 23.
  • the separated refrigerant is sent to the four-way switching valve 28, and the lubricating oil is returned to the compressor 23.
  • the outdoor heat exchanger 25 is for exchanging heat between the refrigerant and outdoor air.
  • the outdoor heat exchanger 25 for example, a cross fin type fin-and-tube heat exchanger or the like can be employed.
  • an outdoor fan (air blowing means) 31 for blowing (supplying) outdoor air to the outdoor heat exchanger 25 is provided.
  • the expansion valve 26 is disposed between the outdoor heat exchanger 25 and the indoor heat exchanger 20 in the refrigerant circuit 18, and expands the refrigerant flowing therein to reduce the pressure to a predetermined pressure.
  • an electronic expansion valve 26 having a variable opening can be employed as the expansion valve 26.
  • the accumulator 27 is used for gas-liquid separation of the inflowing refrigerant, and is disposed between the suction port of the compressor 23 and the four-way switching valve 28 in the refrigerant circuit 18. The gas refrigerant separated by the accumulator 27 is sucked into the compressor 23.
  • the four-way switching valve 28 is provided with first to fourth ports.
  • the four-way switching valve 28 includes a first state (state indicated by a solid line in FIG. 1) in which the first port and the third port are communicated with each other and a second port and a fourth port, and the first port and the fourth port. Can be switched to a second state (state indicated by a broken line in FIG. 1) in which the second port and the third port are communicated simultaneously.
  • the first port is connected to the discharge port of the compressor 23 via the oil separator 24, the second port is connected to the suction port of the compressor 23 via the accumulator 27, and the third port is connected to the outdoor It is connected to the heat exchanger 25 and the fourth port is connected to the indoor heat exchanger 20 via the first connection pipe 13.
  • the four-way switching valve 28 is switched to the first state.
  • the four-way switching valve 28 is switched to the second state.
  • a refrigerant jacket 37 is joined to the liquid side pipe of the refrigerant circuit 18.
  • the refrigerant jacket 37 is for cooling the heat generating part of the electrical component module 35.
  • the liquid side pipe to which the refrigerant jacket 37 is joined is a liquid side pipe between the outdoor heat exchanger 25 and the expansion valve 26 in the refrigerant circuit 18, but the refrigerant to which the refrigerant jacket 37 is joined.
  • the piping is not limited to this. However, considering the cooling capacity, the refrigerant jacket 37 is preferably joined to the liquid side pipe.
  • the refrigerant condensed by the outdoor heat exchanger 25 flows during the cooling operation, and the refrigerant condensed by the indoor heat exchanger 20 and decompressed by the expansion valve 26 flows during the heating operation.
  • the temperature of these refrigerants varies depending on operating conditions and the like, but is about 40 to 45 ° C. during cooling operation, for example.
  • the refrigerant jacket 37 is formed in a flat shape, and is configured to be surface-bondable at a predetermined position of the electrical component module 35.
  • the electrical component module 35 is an electrical component assembly for performing operation control of the refrigerant circuit 18, and is provided in the outdoor unit 11. Detailed configurations of the electrical component module 35 and the refrigerant jacket 37 will be described later.
  • the outdoor unit 11 includes a bottom plate 30a as a base, a side plate 30b erected on the peripheral edge of the bottom plate 30a, and a top plate 30c provided at the upper end of the side plate 30b.
  • a casing 30 is provided.
  • the side plate 30b of the casing 30 includes a front side plate 130 and a rear side plate 131 that are substantially parallel to each other, and both ends in the width direction of the front side plate 130 and the rear side plate 131 (that is, the left side ends and the right side ends when viewed from the front side). And a pair of side surface plates 132 that connect each other).
  • the front side plate 130 is configured by two front plates (a first front plate 130a and a second front plate 130b) arranged side by side.
  • a partition plate 39 that divides the internal space of the casing 30 into two spaces is provided inside the casing 30.
  • the partition plate 39 has a size extending from the lower end portion to the upper end portion of the internal space of the casing 30, and is provided so as to stand on the bottom plate 30 a of the casing 30.
  • the internal space of the casing 30 accommodates the heat exchange chamber 40 in which the outdoor heat exchanger 25 and the outdoor fan 31 are accommodated, the compressor 23, the oil separator 24, the electrical component module 35, and the like.
  • the machine room 41 is partitioned.
  • the heat exchange chamber 40 is located on the left side when the casing 30 is viewed from the front, and the machine room 41 is positioned on the right side when the casing 30 is viewed from the front.
  • the first front plate 130 a is disposed on the front surface of the heat exchange chamber 40, and the second front plate 130 b is disposed on the front surface of the machine room 41.
  • the first front plate 130 a has an opening for blowing outdoor air taken into the heat exchange chamber 40 to the outside of the casing 30.
  • the second front plate 130b has an L-shape when viewed from the plane, with the right end bent to the back side (see FIG. 5).
  • a notch 135 is formed at the lower right end of the second front plate 130b. Specifically, the right lower end portion of the second front plate 130b is cut out from the substantially central portion in the width direction on the front surface side to the rear end portion of the bent portion.
  • a cover member 150 is disposed so as to close the notch 135.
  • the cover member 150 is a plate-like member that is bent in an L shape when viewed from above, and is provided to stand on the bottom plate 30a. A part of the cover member 150 (the lid portion 151) is configured to be removable on the front side and the right side. By removing the lid 151, a pipe lead-out hole (see FIG. 6) through which the pipe can be drawn out from the inside of the casing 30 is opened. The pipe lead-out hole communicates the inside and the outside of the casing 30 and is used for drawing out the first connection pipe 13 and the second connection pipe 14 from the inside of the casing 30.
  • the front-side lid 151 and the right-side lid 151 are drawn out from the outdoor unit 11 (casing 30) of the first connection pipe 13 and the second connection pipe 14 according to the installation status of the outdoor unit 11. Selectively removed.
  • first connection pipe 13 and the second connection pipe 14 are pulled out from the side surface of the outdoor unit 11, as shown in FIG.
  • the lid 151 is removed, and the first connection pipe 13 and the second connection pipe 14 are drawn out through the opened pipe lead-out hole.
  • the first connection pipe 13 and the second connection pipe drawn through the pipe drawing hole are bundled with a tape or the like.
  • the gap is generated between the pipe lead-out hole peripheral portion of the cover member 150 and the first connection pipe 13 and the second connection pipe 14.
  • the gap is filled with a putty or a special member.
  • the cover member 150 is provided with an opening 152.
  • the opening 152 is provided above each lid 151 in the cover member 150 and communicates the inside and the outside of the casing 30.
  • Each opening 152 is long in the horizontal direction. From the opening 152, outdoor air flows into the machine chamber 41 when the air conditioner 10 is operated.
  • the right side plate 132 (right plate 132a) constitutes the right side of the casing 30 together with the bent portion of the second front plate 130b, and therefore the left side plate 132 (left plate 132b). Is also formed to have a smaller width (see FIG. 5).
  • a screw hole 133 that is used when fixing the electrical component module 35 at the intermediate height position is provided at the front end portion of the right side plate 132a (see FIG. 15). In the present embodiment, two screw holes 133 are provided at intervals in the vertical direction.
  • the partition plate 39 has a height from the bottom plate 30a to the top plate 30c, its front end is coupled to the front side plate 130 (specifically, the right end of the first front plate 130a), and the rear end is outdoor heat. It is coupled to the end of the exchanger 25 (the right end in FIG. 5).
  • the partition plate 39 extends from the front end toward the back side of the casing 30 and is curved to the right from the substantially center position in the depth direction of the casing 30 toward the end of the outdoor heat exchanger 25 (see FIG. 5). ).
  • An opening 39 a (see FIG. 7B) that connects the machine room 41 and the heat exchange chamber 40 is provided on the upper part of the partition plate 39.
  • the opening 39a is long in the vertical direction and is provided at a curved portion on the rear end side of the partition plate 39. This part is a position on the back side of the oil separator 24 arranged in the vicinity of the upper portion of the partition plate 39 when viewed from the front (see FIGS. 7A and 7B).
  • the oil separator 24 prevents the electrical component from getting wet with rainwater or the like.
  • the oil separator 24 is disposed at a position facing the opening 39a.
  • the present invention is not limited to this, and other refrigerant circuit components are disposed at a position facing the opening 39a.
  • a member for supporting these refrigerant circuit components may be provided.
  • a dedicated member for preventing intrusion of rainwater or the like into the front side of the machine room 41 may be separately provided.
  • a fixing portion 39b for fixing the electrical component module 35 is provided at a predetermined height position corresponding to the screw hole 133 provided at the front end portion of the right side plate 132a ( (See FIG. 15).
  • the fixing portion 39b is a portion that protrudes from the partition plate 39 toward the inside of the machine room 41, and is a substantially triangular prism-like portion that extends vertically in the present embodiment.
  • a screw hole 134 is provided on the front side surface of the fixed portion 39b. Two screw holes 134 are lined up and down.
  • the outdoor heat exchanger 25 is installed on the bottom plate 30a of the casing 30, and has a size ranging from the lower end portion to the upper end portion of the heat exchange chamber 40. And the outdoor heat exchanger 25 is formed in L shape seeing from the plane, and is arrange
  • the machine room 41 is formed so as to occupy the whole in the front-rear direction, as shown in FIG.
  • An electrical component module 35 is disposed on the front side of the internal space of the machine room 41. That is, the electrical component module 35 is installed in the vicinity of the front side plate 130 so that the front surface thereof is approximately parallel to the front side plate 130 (specifically, the second front plate 130b) of the casing 30. Therefore, when the second front plate 130b is removed from the outdoor unit 11, the front surface of the electrical component module 35 is exposed on the most front side.
  • Refrigerant circuit components such as a refrigerant pipe and an accumulator 27 are disposed on the back side (rear side) of the electrical component module 35.
  • the electrical component module 35 is disposed in the middle of the machine room 41 in the height direction, and the upper and lower portions of the electrical component module 35 are spaces as shown in FIG.
  • one end (left end) in the width direction is coupled to the partition plate 39, while the other end (right end) is coupled to the side plate 30b (right plate 132a) of the casing 30 (see FIG. 16).
  • the electrical component module 35 includes a holding member 44, a circuit board 45, a terminal block 46, and a back protective cover 47 which is a protective member.
  • the holding member 44 includes a main member 51 configured to be coupled to the right side plate 132 a and the partition plate 39 of the casing 30, a resin interposed member 52 coupled to the main member 51, and an upper end of the main member 51. And a gripping member (plate member) 53 provided.
  • the main member 51 is formed by punching a proper portion of a member made of sheet metal and bending it into a predetermined shape.
  • the main member 51 includes a rectangular main surface portion 51a, a side surface portion 51b bent from a side end portion of the main surface portion 51a, and a top surface portion 51c bent from an upper end portion of the main surface portion 51a.
  • a cut and raised piece 51d (see FIG. 10) is provided at the left end of the main surface portion 51a.
  • the cut-and-raised piece 51 d is a part for connecting the left end portion of the electrical component module 35 to the partition plate 39.
  • the cut-and-raised piece 51d is formed by providing a cut from the left end portion of the main surface portion 51a to the left side surface portion (left-side surface portion) 51b and causing a portion surrounded by the cut to the front side. .
  • the cut and raised piece 51d is cut and raised in a shape along the surface provided with the screw hole 134 in the fixing portion 39b of the partition plate 39.
  • the cut-and-raised piece 51d is provided with a through hole 51e.
  • the through holes 51e are provided at positions corresponding to the two screw holes 134 arranged on the upper and lower sides provided in the fixing portion 39b of the partition plate 39, respectively.
  • the screw B1 is inserted into the through hole 51e, and the screw B1 is screwed into the screw hole 134 of the fixing portion 39b of the partition plate 39, whereby the left end portion of the electrical component module 35 is coupled to the partition plate 39. (See FIG. 16).
  • the contacted portion 153 is formed by bending the rear side end portion of the right side surface portion (right side surface portion) 51b of the left and right side surface portions 51b in parallel with the main surface portion 51a toward the outside. Yes.
  • a through hole 153a is provided at a position corresponding to the screw hole 133 at the front end of the right side plate 132a when the electrical component module 35 is fixed to the upper end and the lower end of the contacted portion 153.
  • the through hole 153a is used to connect the right end portion of the electrical component module 35 to the right side plate 132a.
  • the screw B2 is inserted into the through hole 153a, and the screw B2 is screwed into the screw hole 133 provided in the front end portion of the right side plate 132a. Is done. Thereby, the right end part of the electrical component module 35 is coupled to the right side plate 132a of the casing 30 (see FIG. 16).
  • the intervention member 52 is coupled to the main surface portion 51 a of the main member 51, and suppresses the heat of the circuit board 45 from being transmitted to the main member 51.
  • the gripping member 53 is a plate-like member whose front end protrudes from the upper end of the main member 51 to the front side along the horizontal plane.
  • the gripping member 53 is provided with a through hole 53a penetrating in the vertical direction at the tip.
  • the through hole 53 a is used when an operator or the like inserts a finger to grip the gripping member 53 when gripping the gripping member 53.
  • the grip member 53 is provided on the left side of the center of the main member 51 when viewed from the front. Further, the leading end portion and the left and right end portions are bent upward to form a rising portion 53b. The strength of the gripping member 53 is improved by the rising portion 53b.
  • a reactor 56c is placed on the rear end side of the through hole 53a.
  • the circuit board 45 includes a rear substrate 54 (see FIG. 9) disposed on the rear surface side of the main surface portion 51a of the main member 51, and a front substrate 55 disposed on the front surface side of the main surface portion 51a of the main member 51. (See FIGS. 10 to 12). These substrates 54 and 55 are arranged in the electrical component module 35 so as to be parallel to each other.
  • the back substrate 54 includes a first substrate portion 54a on which a plurality of electrical components 56 including a power element 56a (see FIG. 13) and an element 56b such as a capacitor other than the power element 56a are mounted, and an element 56b other than the power element 56a. And a second substrate part 54b on which a plurality of electrical components 56 are mounted. Examples of the electrical component 56 mounted on the second substrate unit 54b include a noise filter.
  • the second substrate portion 54b is fixed to the main member 51 so that the electrical component 56 is on the back side.
  • the second substrate portion 54b is coupled to the upper portion of the main surface portion 51a of the main member 51, and the first substrate portion 54a is disposed below the second substrate portion 54b.
  • the first substrate portion 54 a is coupled to an interposed member 52 that is coupled to the main surface portion 51 a of the main member 51. That is, the first substrate portion 54 a is indirectly coupled to the main member 51, while the second substrate portion 54 b is directly coupled to the main member 51.
  • Examples of the power element 56a provided in the first substrate portion 54a include a compressor control inverter and a fan motor control module. That is, a plurality of power elements 56a are mounted on the first substrate portion 54a. These power elements 56a are mounted on the front surface of the first substrate portion 54a. On the other hand, an electrical component 56 other than the power element 56a is mounted on the back surface of the first substrate portion 54a.
  • the electrical components mounted on the front substrate 55 include electrical components that are operated by an operator during trial operation and maintenance, electrical components that can display the control operation status, and the like.
  • the front side substrate 55 is disposed mainly on the upper side in the main surface portion 51 a of the main member 51. That is, the front substrate 55 is disposed on the main surface 51a above the place where the heat transfer plate 60 described later is disposed.
  • the heat transfer plate 60 is surface-bonded to the front surface of the plurality of power elements 56a mounted on the first substrate portion 54a (see FIG. 13). That is, the heat transfer plate 60 is a member having a size including the positions where the plurality of power elements 56a are disposed, and is made of a material having high thermal conductivity such as aluminum.
  • the first substrate portion 54a is coupled to the back surface of the interposed member 52 that is coupled to the back surface of the main surface portion 51a of the main member 51.
  • An opening 61 (see FIG. 9) having a size that allows the heat transfer plate 60 to be inserted is formed in the main surface portion 51 a of the main member 51 and the interposed member 52.
  • the heat transfer plate 60 is exposed to the front side of the main member 51 through the opening 61.
  • the opening 61 is L-shaped as indicated by a broken line in FIG.
  • a refrigerant jacket 37 is surface joined to the front surface of the heat transfer plate 60.
  • the refrigerant jacket 37 is fixed to the heat transfer plate 60 by screw fastening.
  • the refrigerant jacket 37 is made of a thick plate made of a material having high thermal conductivity such as aluminum.
  • a refrigerant pipe 18 a of the refrigerant circuit 18 is joined to the refrigerant jacket 37. That is, the refrigerant jacket 37 joined to the refrigerant pipe 18 a through which the refrigerant of the refrigerant circuit 18 flows is thermally connected to the power element 56 a via the heat transfer plate 60. Accordingly, the heat transfer plate 60 is joined to the power element 56a and functions as a receiving portion to which the refrigerant jacket 37 can be thermally connected.
  • the refrigerant jacket 37 is formed in a horizontally long rectangular shape.
  • the refrigerant jacket 37 has a groove (see FIG. 13) extending in the longitudinal direction. Two grooves are provided on the upper and lower sides, and are parallel to each other.
  • the refrigerant pipe 18 a bent in a U shape is press-fitted into the two grooves, so that the refrigerant pipe 18 a is joined to the refrigerant jacket 37.
  • the refrigerant pipe 18 a fixed to the refrigerant jacket 37 functions as a cooling passage through which the refrigerant of the refrigerant circuit 18 flows.
  • the refrigerant pipe 18a is fixed to the groove of the refrigerant jacket 37, but the present invention is not limited to this.
  • it is good also as a structure which forms two through-holes which penetrate the refrigerant
  • the refrigerant pipe 18 a joined to the refrigerant jacket 37 is a part of a pipe (liquid side pipe) provided between the outdoor heat exchanger 25 and the expansion valve 26 in the refrigerant circuit 18.
  • the refrigerant pipe 18a is connected to the upper ends of a pair of pipes (extension portions) 18b extending in the vertical direction. That is, one end of the U-shaped refrigerant pipe 18a is connected to the lower end of the outdoor heat exchanger 25 via one pipe 18b extending in the vertical direction, and the other end extends in the vertical direction.
  • the other pipe 18b is connected to the expansion valve 26.
  • the pair of pipes 18b extending in the vertical direction extend downward when viewed from the refrigerant jacket 37 and are connected to the lower end of the heat exchanger 25 and before being connected to the expansion valve 26. It is the site
  • the terminal block 46 is provided on the main member 51 so that the position can be changed between the open position P1 (see FIG. 11) and the closed position P2 (see FIG. 12).
  • the terminal block 46 forms a predetermined storage space with the main member 51 so that the refrigerant jacket 37 can be stored between the terminal block 46 and the main surface portion 51a of the main member 51 at the closed position P2, and the open position P1. In this case, the storage space is released.
  • the terminal block 46 when the terminal block 46 rotates, the position of the terminal block 46 is changed between the open position P1 and the closed position P2.
  • the terminal block 46 projects to the front side of the electrical component module 35 at the open position P1, and also serves as a gripping portion when an operator or the like holds the electrical component module 35.
  • the terminal block 46 is provided below the front substrate 55 on the front surface of the main surface portion 51a of the main member 51.
  • a plurality of terminal connection portions t are provided on the front side of the terminal block 46.
  • the terminal block 46 is formed by bending a member made of sheet metal so as to have a predetermined shape.
  • the terminal block 46 is formed on the main surface portion 51a of the main member 51 so that the lower end portion can be rotated around the upper end portion. Is retained.
  • the terminal block 46 includes a rectangular front surface portion 46a, a side surface portion 46b bent from the side end portion of the front surface portion 46a, and a bottom surface portion 46c bent from the lower end portion of the front surface portion 46a.
  • a contact portion 146 is formed on the right side surface portion 46b as viewed from the front.
  • the abutting portion 146 is formed by bending the rear end portion on the back side when the terminal block 46 is at the closed position P2 outward.
  • the contact portion 146 is a portion that contacts the contacted portion 153 of the right side surface portion 51b of the main member 51 when the terminal block 46 is at the closed position P2.
  • the contact portion 146 is provided with a through hole 146a at a position communicating with the lower through hole 153a provided in the contacted portion 153 when the terminal block 46 is in the closed position P2.
  • a plurality of terminal connection portions t are arranged on the front surface portion 46a as described above.
  • the terminal connection portion t is disposed on the front surface portion 46a.
  • the present invention is not limited to this, and another electrical component 56 may be disposed, or nothing may be disposed.
  • the terminal block 46 configured in this manner is rotatably held on the main surface portion 51a of the main member 51 via the support portion S.
  • the support portion S is a portion protruding from the main surface portion 51a to the front surface side.
  • the support portion S is a plate-like portion that extends in the vertical direction and extends in the front-rear direction.
  • This support portion S is provided at a position corresponding to both side surface portions 46b of the terminal block 46 in the main surface portion 51a, and supports the terminal block 46 on the main surface portion 51a so as to be rotatable.
  • the upper end portions of the side surface portions 46b of the terminal block 46 are rotatably connected to the upper end portions of the corresponding support portions S.
  • the rotation axis bolt B3 passes through the upper end portions of the side surface portion 46b and the support portion S that are overlapped on the left and right, so that the terminal block 46 and the support portion S are connected. It is connected so that it can rotate.
  • Each pivot shaft bolt B3 is positioned on the same straight line in the horizontal direction on both sides of the terminal block 46, thereby connecting the terminal block 46 to the support portion S so as to be pivotable about the pivot shaft bolt B3.
  • the terminal block 46 is positioned between the open position P1 and the closed position P2 by rotating the lower end portion around the upper end portion as the rotation center. Make changes.
  • the terminal block 46 is rotated to a position where the front surface portion 46a of the terminal block 46 is horizontal or substantially horizontal, and the upper end of the front surface portion 46a contacts the main surface portion 51a, whereby the rotation of the terminal block 46 is restricted.
  • the position thus regulated is the open position P1 of the terminal block 46.
  • the four-way switching valve 28 is switched to the first state.
  • the refrigerant compressed by the compressor 23 is separated by the oil separator 24 and then flows into the outdoor heat exchanger 25 via the four-way switching valve 28.
  • This refrigerant exchanges heat with outdoor air in the outdoor heat exchanger 25 and condenses to become a liquid refrigerant.
  • outdoor air is taken into the heat exchange chamber 40 from an intake opening (not shown) provided in the back side plate 131 of the casing 30 by the outdoor fan 31, and the front side plate 130 (specifically, the first front plate).
  • the outdoor air taken into the heat exchange chamber 40 is blown out of the casing 30 from the blowout opening provided in 130 a).
  • the outdoor heat exchanger 25 is disposed between the intake opening and the outdoor fan 31 (see FIG. 5)
  • the taken outdoor air passes through the outdoor heat exchanger 25. That is, outdoor air is supplied (blowed) to the outdoor heat exchanger 25 by the outdoor fan 31. In this way, when the outdoor air passes through the outdoor heat exchanger 25, heat exchange between the refrigerant and the outdoor air is performed via the outdoor heat exchanger 25, and the refrigerant is condensed by this heat exchange to form liquid refrigerant.
  • an opening 152 through which outdoor air flows is provided in a lower portion (cover member 150) of the side surface surrounding the machine chamber 41, and an opening 39a through which air flows out from the machine chamber 41 is an upper portion (partition) of the machine chamber 41. Since it is provided on the upper part of the plate 39, an air flow from the lower side to the upper side is formed in substantially the entire interior of the machine room 41. Due to this air flow, not only the electrical component module 35 but also other members arranged inside the machine room 41 are suitably cooled.
  • the liquid refrigerant which has been heat-exchanged with the outdoor air and condensed in the outdoor heat exchanger 25 flows upward through one pipe 18b extending in the vertical direction, and then flows through the refrigerant pipe 18a fixed to the refrigerant jacket 37. Flowing.
  • the power element 56a generates heat by driving the compressor 23 and the fan motor
  • the heat transfer plate 60 is heated by the heat generated by the power element 56a.
  • the heating element 60a is heated by the refrigerant flowing through the refrigerant pipe 18a.
  • the heat transfer plate 60 is cooled.
  • the refrigerant that has flowed through the refrigerant pipe 18a flows downward through the other pipe 18b that extends in the vertical direction, and is then decompressed by the expansion valve 26 and flows into the indoor heat exchanger 20.
  • This refrigerant is vaporized by exchanging heat with indoor air in the indoor heat exchanger 20.
  • the indoor air is cooled and blown into the room.
  • the refrigerant heated and evaporated by the room air flows into the accumulator 27 via the four-way switching valve 28.
  • the refrigerant is gas-liquid separated, and the gas refrigerant separated here is sucked into the compressor 23.
  • the refrigerant circulation is continuously performed.
  • the four-way switching valve 28 is switched to the second state.
  • the refrigerant discharged from the compressor 23 is introduced into the indoor heat exchanger 20 via the oil separator 24 and the four-way switching valve 28.
  • the indoor heat exchanger 20 the refrigerant is condensed by exchanging heat with room air. By this heat exchange, the room air is heated and blown into the room.
  • the refrigerant cooled and condensed by the indoor air is expanded by the expansion valve 26, and then flows upward through one pipe 18 b extending in the vertical direction, and then flows through the refrigerant pipe 18 a fixed to the refrigerant jacket 37. At this time, the refrigerant cools the heat transfer plate 60 heated by the heat generated by the power element 56a.
  • the refrigerant that has flowed through the refrigerant pipe 18a flows downward in the other pipe 18b that extends in the vertical direction, and is then introduced into the outdoor heat exchanger 25 to exchange heat with outdoor air.
  • a flow of air from below to above is formed in substantially the entire interior of the machine chamber 41.
  • Heat exchange is performed in the outdoor heat exchanger 25, and the evaporated refrigerant flows into the accumulator 27 via the four-way switching valve 28.
  • the gas refrigerant separated here is sucked into the compressor 23. This refrigerant circulation is continuously performed during the heating operation.
  • the terminal block 46 is rotated to the open position P1, and the terminal block 46 and the gripping member 53 at the open position P1 are gripped by an operator or the like, whereby the electrical component module 35 is held. At this time, an operator or the like holding the electrical component module 35 grips the gripping member 53 so as to insert a finger into a through hole 53 a provided on the distal end side of the gripping member 53.
  • the held electrical component module 35 is carried into the outdoor unit 11 with the front surface of the machine room 41 open. Specifically, the electrical component module 35 is moved in the horizontal direction from the front side of the outdoor unit 11 to the upper position on the back side of the refrigerant jacket 37 in the machine room 41 (see FIG. 15). Then, the electrical component module 35 is lowered from that position until the position of the heat transfer plate 60 reaches the same height as the refrigerant jacket 37. At this height position, the electrical component module 35 is fixed inside the outdoor unit 11 by coupling the left end to the partition plate 39 and coupling the right end to the side plate 30 b of the casing 30.
  • the cut and raised piece 51d provided at the left end portion of the main surface portion 51a of the main member 51 is formed.
  • the through hole 51e and the screw hole 134 of the fixing portion 39b of the partition plate 39 communicate with each other in the front-rear direction, and the right end portion of the electrical component module 35 is provided in the contacted portion 153 of the right side surface portion 51b of the main member 51.
  • the through hole 153a and the screw hole 133 at the front end of the right side plate 132a of the casing 30 communicate with each other in the front-rear direction.
  • the screw B1 is screwed into the screw hole 134 of the fixing portion 39b through the through hole 51e of the cut and raised piece 51d. Further, the screw B2 is screwed into the screw hole 133 of the right side plate 132a through the through hole 153a of the contacted portion 153. At this time, at the right end portion of the electrical component module 35, the screw B2 is screwed into the corresponding screw hole 133 via the upper through hole 153a. Thereby, the electrical component module 35 is fixed inside the casing 30. Note that the screw B2 is not screwed into the lower through-hole 153a at this time.
  • the operator or the like releases the terminal block 46 and the gripping member 53 that have been gripped.
  • the refrigerant jacket 37 is screwed to the heat transfer plate 60 by an operator or the like while the terminal block 46 is kept in the open position P1.
  • the terminal block 46 When the refrigerant jacket 37 is fixed to the heat transfer plate 60, the terminal block 46 is rotated to the closed position P2, and the refrigerant jacket 37 is stored in the storage space (see FIG. 16). In other words, when the position of the terminal block 46 becomes the closed position P ⁇ b> 2, the front surface side of the refrigerant jacket 37 and the heat transfer plate 60 is covered by the terminal block 46.
  • the through hole 146a of the contact portion 146 of the terminal block 46 and the contacted portion 153 of the main member 51 are formed at the lower portion of the right end portion of the electrical component module 35.
  • the lower through-hole 153a and the lower screw hole 133 at the front end portion of the right side plate 132a of the casing 30 are in communication with each other, and the screw B2 is screwed therein.
  • the electrical component module 35 is more securely fixed, and the position (posture) of the terminal block 46 is also securely fixed at the closed position P2.
  • the pair of pipes (extension portions) 18b of the refrigerant circuit 18 join the refrigerant jacket 37 to the heat transfer plate 60 of the electric component module 35, so that the electric component module 35 Even if it is disposed in the vicinity, the electrical component 56 disposed in the electrical component module 35 is hardly wetted by condensation, frost, or the like.
  • the heat transfer plate 60 is connected to the first substrate portion (the first circuit on which the power element 56a is mounted). Substrate) 54a and the refrigerant jacket 37, the heat transfer plate 60 prevents the dew condensation generated in the refrigerant jacket 37 from moving to the first substrate portion 54a. As a result, the electrical component 56 mounted on the first substrate portion 54a is difficult to get wet due to condensation or the like generated in the refrigerant jacket 37 or the like.
  • the circuit board (second circuit board) on which the power element 56a such as the second board portion 54b and the front side board 55 is not mounted is disposed above the refrigerant jacket 37, the above-described circuit board is provided.
  • the electrical components 56 mounted on the second circuit board 54 b and the front side board 55 are less likely to get wet due to condensation or the like generated in the refrigerant jacket 37.
  • the pair of pipes 18b extend downward, even if condensation occurs on the surfaces of the pair of pipes 18b, the condensation flows down the pair of pipes 18b, The electrical component module 35 becomes difficult to get wet due to condensation or the like generated in the pair of pipes 18b.
  • the refrigerant jacket 37 and the heat transfer plate 60 are thermally connected, whereby the refrigerant pipe 18a connected to the pair of pipes 18b and the power element 56a are thermally connected.
  • heat exchange between the refrigerant and the power element 56a becomes possible, and the power element 56a that generates high heat in the electrical component module 35 is effectively cooled by the low-temperature refrigerant.
  • the outdoor air flows from the lower side to the upper side at the arrangement position of the electrical component module 35 based on the flow of outdoor air that the outdoor fan 31 blows to the outdoor heat exchanger 25.
  • the casing 30 is configured to flow. Therefore, in addition to the cooling of the heat generated by the power element 56a by the refrigerant, the electrical component module 35 is also cooled by the outdoor air flowing upward from below. Moreover, since the direction in which the heated air deprives heat from the electrical component module 35 and the flow direction of the outdoor air at the position where the electrical component module 35 is disposed is the same direction, The flow of air at the arrangement position is not disturbed, and the electrical component module 35 is suitably cooled by the air.
  • the electrical component module 35 is disposed at an intermediate height position inside the machine room 41. Therefore, at the position where the electrical component module 35 is disposed, an air flow that flows upward from below is easily formed. That is, the electrical component module 35 is disposed at an intermediate height position inside the machine room 41, so that the outdoor air taken from the outside passes through the space or the electrical component module 35 to guide the lower part of the electrical component module 35. Thus, a space for guiding the outdoor air after being cooled (cooled) to the opening 39a that discharges from the machine room 41 is secured, and an air flow from the lower side to the upper side at the position where the electrical component module 35 is arranged is easily formed.
  • the electrical component module 35 Furthermore, by disposing the electrical component module 35 at an intermediate height position inside the machine room 41, other refrigerant passages included in the refrigerant circuit 18, etc. while shortening the pair of pipes 18 b extending downward. It is possible to prevent the electrical component module 35 from getting wet due to dew condensation or the like generated on the surface. Specifically, since many refrigerant circuit components (components of the refrigerant circuit 18) such as the compressor 23 and other refrigerant passages are usually arranged at the lower end portion inside the machine room 41, the electrical component module 35 Is disposed at the lower end inside the machine room 41, the electrical component module 35 is easily wetted by condensation or the like generated on the surface of the refrigerant circuit component.
  • the electrical component module 35 when the electrical component module 35 is disposed at the upper end portion inside the machine room 41, the electrical component module 35 is separated from the refrigerant circuit component, so that the electrical component module 35 is difficult to wet due to condensation or the like generated in the refrigerant circuit component.
  • the length dimension of a pair of piping 18b extended toward the downward side becomes large. Therefore, by disposing the electrical component module 35 at an intermediate height position inside the machine room 41 as described above, the pair of pipes 18b can be shortened, and the electrical component is caused by condensation or the like generated in the refrigerant circuit components. It is possible to suppress the module 35 from getting wet.
  • the casing 30 is configured such that the front surface of the machine room 41 is opened by removing a part of the front side plate 130 (second front plate 130b).
  • each circuit board 54a, 54b, 55 is arrange
  • the electrical component module 35 is disposed immediately inside the opening on the front surface. In the electrical component module 35, the circuit components 54a, 54b, and 55 are arranged in parallel, so that the electrical component module 35 has a substantially plate shape.
  • the thickness in the direction orthogonal to each circuit board 54a, 54b, 55 is smaller than the width in the direction along each circuit board 54a, 54b, 55 of the electrical component module 35. Therefore, the electrical component module 35 is arranged immediately inside the front side plate 130 so that the circuit boards 54a, 54b, and 55 are parallel to each other along the front side plate 130 of the casing 30 as described above.
  • the substantially plate-shaped electrical component module 35 is arranged in parallel along the front side plate 130, the thickness of the casing 30 in the depth direction can be further reduced.
  • the electrical component module 35 is disposed immediately inside the second front plate 130b of the front side plate 130, when the second front plate 130b is removed and the machine room 41 is opened, the electrical component module 35 is located on the most front side. Exposed to. Therefore, it becomes easy to work on the electrical component module 35.
  • an opening 152 that allows air to pass downward toward the electrical component module 35, and air after passing through the electrical component module 35.
  • an opening 39a that allows the machine room 41 to pass therethrough.
  • the electrical component module 35 is disposed between the opening 152 of the cover member 150 and the opening 39 a of the partition plate 39 in the vertical direction of the machine room 41. Therefore, a flow of outdoor air is formed in the machine room 41 from the opening 152 of the cover member 150 toward the opening 39a of the partition plate 39 and from the lower side to the upper side at the position where the electrical component module 35 is disposed.
  • the entire electrical component module 35 is suitably cooled by the flow of outdoor air.
  • the opening 152 is formed in the cover member 150 at the lower end of the casing 30, and the opening 39 a is provided on the upper part of the partition plate 39. Therefore, a flow of outdoor air directed from below to above is easily formed in substantially the entire interior of the machine room 41, and other refrigerants disposed not only in the electrical component module 35 but also in the machine room 41 due to the flow of outdoor air. Components can also be cooled.
  • the electrical component module 35 is detachably fixed to the casing 30 inside the casing 30, and a predetermined interval is provided between the upper end portion of the electrical component module 35 and the lower side from the upper end portion. Gripping portions (that is, the gripping member 53 and the terminal block 46) that can project from the respective portions. Therefore, by gripping these gripping portions 53 and 46, the electrical component module 35 is held without touching the electrical component 56 mounted on each circuit board 45 of the electrical component module 35, and is attached to the inside of the casing 30 or the casing. 30 can be removed.
  • the electrical component module 35 can be gripped at a position that is vertically separated from the upper end portion and a portion spaced from the upper end portion by a predetermined distance, the electrical component module 35 is stably held. be able to. As a result, it becomes easy to perform work when the electrical component module 35 is attached to or removed from the outdoor unit 11. In addition, it is possible to prevent the electrical component 56 from being damaged due to the operator or the like touching the electrical component 56.
  • the gripping portions 53 and 46 can project to the front side, and the lower gripping portion (terminal block) 46 can be switched between the open position P1 and the closed position P2.
  • the electrical component module 35 is easily held when the electrical component module 35 is attached to or detached from the outdoor unit 11.
  • the refrigerant jacket 37 joined to the heat transfer plate 60 is covered with the lower grip 46 by switching the lower grip 46 to the closed position P2. Is called. As a result, contact of an operator or the like with this part is prevented.
  • the lower gripping portion (terminal block) 46 is switched to the open position P1 and gripped together with the upper gripping member 53 protruding in the same direction, whereby the electrical component module 35 is stably held.
  • the attachment / detachment work of the electrical component module 35 to the outdoor unit 11 is facilitated.
  • the lower grip 46 is switched to the closed position P ⁇ b> 2
  • the refrigerant jacket 37 joined to the heat transfer plate 60 is covered by the lower grip 46.
  • contact of the worker or the like with this part is prevented, and the part is protected.
  • the reactor 56 c since the reactor 56 c is installed on the upper surface of the upper grip portion (grip member) 53, the electrical component disposed in the electrical component module 35 by gripping the upper grip portion 53. The vicinity of the portion where the heavy reactor 56c is attached can be gripped. This makes it possible to stably hold the electrical component module 35 having the reactor 56c attached to the upper end portion and having a high center of gravity.
  • the through-hole 53a is provided in the upper grip 53, the grip 53 can be reliably gripped by inserting a finger into the through-hole 53a and gripping the grip 53. Therefore, the attachment / detachment work of the electrical component module 35 with respect to the outdoor unit 11 becomes easier.
  • the air conditioning apparatus 10 of this invention is not limited to the said embodiment, Of course, a various change can be added in the range which does not deviate from the summary of this invention.
  • the internal space of the casing 30 is partitioned into the heat exchange chamber 40 and the machine chamber 41 by the partition plate 39, and the electrical component module 35 is arranged inside the machine chamber 41.
  • the electrical component module 35 may be disposed inside a casing 170 in which the internal space of the casing is not partitioned by a partition plate.
  • the electrical component module 35 is disposed at an intermediate height position inside the casing 170.
  • the electrical component module 35 is provided at an intermediate height position inside the casing 170, while shortening the pair of pipes 18b extending downward, the surface of other refrigerant passages and the like included in the refrigerant circuit 18 It is possible to prevent the electrical component module 35 from getting wet due to dew condensation or the like generated on the surface.
  • the internal space of the casing 30 is partitioned so that the heat exchange chamber 40 and the machine room 41 are arranged side by side, but the present invention is not limited to this.
  • the internal space of the casing may be partitioned so that the heat exchange chamber 40 and the machine chamber 41 are aligned vertically.
  • the heat exchange chamber 40 may be formed on the upper side and the machine chamber 41 may be formed on the lower side, or vice versa.
  • the electrical component module 35 is arranged at the intermediate height position inside the machine room 41, so that the electrical component module 35 is positioned downward. It is easy to form a flow of air that flows upward from the top.
  • the electrical component module 35 can be prevented from getting wet due to condensation or the like generated on the surface of another refrigerant passage or the like included in the refrigerant circuit 18 while shortening the pair of pipes 18b extending downward.
  • the opening part 152 which flows outdoor air into the machine room 41 is provided one each in the front side and side surface side of the lower end part of the casing 30, it is not limited to this, The front side or Any one of the side surfaces may be provided, and a plurality of each may be provided on the front surface side and the side surface side. Further, an opening for allowing outdoor air to flow into the machine room 41 may be provided on the back side of the casing 30.
  • one opening 39a through which outdoor air flows out from the machine room 41 is provided in the machine room 41, but a plurality of openings 39a may be provided.
  • the opening shape of the opening parts 152 and 39a is not limited.
  • the electrical component module 35 when the electrical component module 35 is fixed to the inside of the casing 30, it fixes with the screw
  • the lower gripping portion 46 is configured to be rotatable, and this gripping portion 46 also serves as a protective cover for the refrigerant jacket 37.
  • the lower grip 46 may be configured by a grip-only member whose posture is fixed.
  • the refrigerant jacket 37 is disposed on the front side of the holding member 44 of the electrical component module 35. However, the refrigerant jacket 37 is disposed on the back side of the holding member 44. May be.
  • the two outdoor fans 31 are arranged in the upper and lower directions, but the present invention is not limited to this.
  • only one outdoor fan 31 may be arranged.
  • the second circuit board 55 or 54b is disposed on the front side and the back side of the holding member 44 one by one, but the present invention is not limited to this.
  • a plurality of circuit boards may be arranged on each of the front side and the back side of the holding member 44, or the circuit boards may be arranged only on either the front side or the back side. Even in these cases, it is only necessary that all the second circuit boards 55 and 54b are disposed above the coolant jacket 37.
  • the rear substrate 54 is divided into the second substrate portion 54b disposed on the upper side and the first substrate portion 54a disposed on the lower side. Also good.
  • the refrigerant jacket 37 and the first circuit board (the first board part 54a and the second board part 54b) on which the power element 56a is mounted are arranged with the heat transfer plate 60 interposed therebetween, and the heat transfer plate 60 and The member (holding member 44) that supports the heat transfer plate 60 only needs to prevent the condensation of the refrigerant jacket 37 and the like from flowing toward the first circuit boards 54a and 54b.
  • the air conditioning apparatus 10 of the said embodiment although both a cooling operation and a heating operation are possible, it is not restricted to this, for example, the air conditioning apparatus which can perform only a cooling operation may be sufficient Or the air conditioning apparatus in which only heating operation is possible may be sufficient.
  • the air conditioner of the present embodiment is mounted with a refrigerant circuit in which refrigerant circulates, a casing, a first circuit board that is disposed inside the casing and on which a power element is mounted, and electrical components other than the power element.
  • An electrical component module having a second circuit board formed and a cooled part joined to the power element, and a cooling part that is thermally connected to the refrigerant of the refrigerant circuit and cools the cooled part.
  • the first circuit board is disposed on the opposite side of the cooling part with the cooled part interposed therebetween, and the second circuit board is disposed on the upper side of the cooling part. It is characterized by being.
  • the electrical component disposed in the electrical component module is condensed. It becomes difficult to get wet with frost.
  • the cooling target exists between the first circuit board and the cooling unit, and thus occurs in the cooling unit. Movement to the first circuit board such as dew condensation is hindered by the cooled portion. As a result, the electrical component mounted on the first circuit board is difficult to get wet.
  • the second circuit board is disposed above the cooling unit, it is difficult to get wet even if condensation occurs on the surface of the cooling unit as described above. Therefore, the electrical component mounted on the second circuit board is difficult to get wet due to condensation or the like.
  • the refrigerant circuit and the power element are thermally connected by thermally connecting the cooling part and the cooled part, and heat exchange between the refrigerant flowing through the refrigerant circuit and the power element becomes possible.
  • the power element that generates high heat is effectively cooled by the low-temperature refrigerant.
  • the refrigerant circuit includes a heat exchanger, and the heat exchanger and a blowing unit for blowing air to the heat exchanger are disposed inside the casing,
  • the air may flow from below to above in the arrangement position of the electrical component module based on the flow of air blown to the heat exchanger by the blowing means.
  • the electrical component in addition to the cooling of the heat generated by the power element by the refrigerant, the electrical component is caused by the air flowing upward from the bottom in the arrangement position of the electrical component module based on the flow of air blown to the heat exchanger by the blower means.
  • the module is cooled.
  • the air flow at the electrical component module placement location is the same. The flow is not disturbed, and the electrical component module is suitably cooled by the air.
  • the electrical component module may be disposed at an intermediate height position inside the casing.
  • an air flow that flows upward from below is easily formed at the position where the electrical component module is disposed. That is, after the electrical component module is arranged at an intermediate height position inside the casing, after passing through the space or electrical component module that guides the air taken in from the outside to the lower part of the electrical component module (cooled) Since it is easy to secure a space for guiding the air to the discharge opening, it is easy to form a flow of air from the lower side to the upper side at the position where the electrical component module is disposed.
  • the casing may include a partition plate that divides a space in the casing into a heat exchange chamber in which the heat exchanger and the air blowing unit are accommodated and a machine room in which the electrical component module is accommodated.
  • the electrical component module may be disposed at an intermediate height position in the machine room.
  • the electrical component module is arranged in the machine room in this way, the electrical component module is arranged at an intermediate height position in the machine room, so that air is guided to the upper and lower sides of the electrical component module in the machine room. It becomes easy to secure the space to do. As a result, it becomes easy to form a flow of air that flows upward from below at the position where the electrical component module is disposed.
  • a specific side surface of the casing is provided with a service opening that is opened by removing a part of the specific side surface, and the electrical component module is connected to the first circuit board.
  • the circuit boards may be arranged in parallel with the second circuit board, and each of the circuit boards may be arranged immediately inside the service opening in a posture parallel to the specific side surface.
  • the electrical component modules are substantially plate-shaped by arranging each circuit board in parallel, and the direction perpendicular to each circuit board is greater than the width in the direction along each circuit board of the electrical component module.
  • the thickness becomes smaller.
  • the electrical component module is arranged immediately inside the specific side surface so that each circuit board of the electrical component module is parallel to the specific side surface of the casing. It is possible to reduce the thickness.
  • the thickness of the casing in the direction needs to be larger than the width of the electrical component module.
  • the electrical component module is disposed immediately inside the position corresponding to the service opening on the specific side surface, the electrical component module is most removed by removing a part of the specific side surface and opening the service opening. Exposed on the front side. As a result, it becomes easier to work on the electrical component module.
  • the casing includes at least a machine room in which the electrical component module is accommodated, and air is passed through a side surface defining the machine room toward the lower side of the electrical component module.
  • a first opening and a second opening that allows air after passing through the electrical component module to pass therethrough are provided, and the electrical component module has the first opening and the second in the vertical direction. It may be arranged between the openings.
  • an air flow is formed in the machine room from the first opening toward the second opening and from below to above at the position where the electrical component module is disposed.
  • the entire electrical component module is suitably cooled by this air flow.
  • the casing includes a partition plate that divides a space in the casing so that the heat exchange chamber and the machine room in which the heat exchanger and the air blowing unit are accommodated are arranged side by side.
  • the first opening may be provided at a lower part of a side surface defining the machine room, and the second opening may be provided at an upper part of the partition plate.
  • an air flow from the lower side to the upper side is formed in substantially the entire machine room.
  • This air flow can cool not only the electrical component module but also other members arranged in the machine room.
  • the air in the machine chamber is sucked into the heat exchange chamber through the second opening by the flow of air in the heat exchange chamber formed by the blowing means.
  • the air in the machine chamber is sucked into the heat exchange chamber through the second opening by the flow of air in the heat exchange chamber formed by the blowing means.
  • external air is sucked into the machine room through the first opening.
  • an air flow from the first opening to the second opening is formed in the machine room.
  • the first opening is provided in the lower part of the side surface surrounding the machine room and the second opening is provided in the upper part of the partition plate, the air flowing upward from below to substantially the entire machine room. A flow is formed.
  • This air flow suitably cools not only the electrical component module but also other members disposed in the machine room.
  • the electrical component module is detachably disposed inside the casing with respect to the casing, and a predetermined interval is provided below the upper end portion of the electrical component module and the upper end portion thereof. You may have the holding part which each protrudes from the part which was.
  • the electrical component module is held without touching the electrical components mounted on the first and second circuit boards, and is attached to or detached from the casing. can do.
  • the electrical component module can be gripped at a position that is vertically separated from the upper end portion of the electrical component module and a portion spaced from the upper end portion by a predetermined distance. Therefore, the electrical component module can be stably held. As a result, it becomes easy to perform work when the electrical component module is attached to or removed from the outdoor unit, and damage to the electrical component due to the operator touching the electrical component can be prevented.
  • the gripping portion protrudes from the cooled portion toward the cooling portion, and the lower gripping portion protrudes from the cooled portion toward the cooling portion.
  • the position may be switchable between a position that covers a space that can accommodate the cooling part joined to the cooled part.
  • the electrical component module can be easily held when the electrical component module is attached to or detached from the outdoor unit.
  • the cooling part joined to the cooled part is covered by the lower gripping part, so that the contact of the operator or the like with this part is prevented.
  • the lower gripping portion is switched to a position protruding from the electrical component module, and the electrical component module is stably held by gripping with the upper gripping portion protruding in the same direction as the lower gripping portion. be able to. Therefore, it becomes easy to attach and detach the electrical component module to / from the outdoor unit.
  • the lower gripping part is switched to a position covering the space that can accommodate the cooling part, the cooling part joined to the cooled part is covered by the lower gripping part. Contact is blocked and the site is protected.
  • the upper gripping part is constituted by a horizontal or substantially horizontal plate member, and a reactor is installed on the upper surface of the plate member, and the protrusion protrudes from the installation position of the reactor in the plate member.
  • a hole may be provided in the direction side portion.
  • the refrigerant circuit may have an extending part extending downward from the cooling part.
  • the extension portion extends downward from the cooling portion, even if condensation or the like occurs on the surface of the extension portion, the condensation or the like does not go to the cooling portion.
  • the electrical component module is less likely to get wet due to dew condensation or the like generated at the extension portion.
  • the air conditioner according to the present invention is useful for an air conditioner in which a refrigerant circulates and performs a vapor compression refrigeration cycle, and the electrical component module is disposed at an intermediate height position inside the casing. Even if the refrigerant passage is disposed in the vicinity thereof, the electrical component mounted on the electrical component module is suitable for making it difficult to get wet.
  • Air conditioning apparatus 11 Outdoor unit 18 Refrigerant circuit 18b A pair of piping (extension part) 25 Outdoor heat exchanger 30 Casing 31 Outdoor fan (air blowing means) 35 Electrical component module 37 Refrigerant jacket (cooling part) 39 Partition plate 39a Opening (second opening) 40 Heat Exchange Room 41 Machine Room 46 Terminal Block (Lower Holding Part) 53 Gripping member (upper gripping part) 54a 1st board

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  • Other Air-Conditioning Systems (AREA)

Abstract

An air conditioning device (10) is provided with: a casing (30); an electric component module (35) provided within the casing (30) and having a first circuit board (54a) on which power elements (56a) are mounted, second circuit boards (54b, 55) on which electric components (56) other than the power elements (56a) are mounted, and a section (60) to be cooled which is joined to the power elements (56a); and a cooling section (37) which cools the section (60) to be cooled. In the electric component module (35), the first circuit board (54a) is provided on the opposite side of the section (60) from the cooling section (37), and the second circuit boards (54b, 55) are arranged above the cooling section (37).

Description

空気調和装置Air conditioner
 本発明は、冷媒が循環して蒸気圧縮式の冷凍サイクルを行う空気調和装置に関する。 The present invention relates to an air conditioner that performs a vapor compression refrigeration cycle by circulating a refrigerant.
 従来、冷媒が循環して蒸気圧縮式の冷凍サイクルを行う空気調和装置として特許文献1に記載のものが知られている。図18に示されるように、この空気調和装置200は、室外機202を備えている。この室外機202は、ケーシング204を有し、シーシング204の内部に冷媒回路206の一部が配設されている。具体的に、ケーシング204の内部には、圧縮機208、熱交換器210及び送風ファン212等と、これらの制御系としてインバータ等のパワー素子(図示省略)を含む複数の電装品が実装された電装品モジュール(電装品箱)220とが配設されている。 Conventionally, an air conditioner described in Patent Document 1 is known as an air conditioner that performs a vapor compression refrigeration cycle by circulating a refrigerant. As shown in FIG. 18, the air conditioning apparatus 200 includes an outdoor unit 202. This outdoor unit 202 has a casing 204, and a part of the refrigerant circuit 206 is disposed inside the seeding 204. Specifically, a plurality of electrical components including a compressor 208, a heat exchanger 210, a blower fan 212, and the like, and a power element (not shown) such as an inverter as these control systems are mounted inside the casing 204. An electrical component module (electrical component box) 220 is disposed.
 電装品モジュール220に実装されたパワー素子は、空気調和装置200の作動時に熱を発して高温となる。そのため、空気調和装置200では、冷媒回路206の一部を構成する冷媒通路(冷却用配管)214がパワー素子と熱的に接続され、冷媒回路206の冷媒とパワー素子との熱交換によりパワー素子が冷却される。 The power element mounted on the electrical component module 220 generates heat when the air conditioner 200 is operated, and becomes high temperature. Therefore, in the air conditioner 200, the refrigerant passage (cooling pipe) 214 constituting a part of the refrigerant circuit 206 is thermally connected to the power element, and the power element is exchanged by heat exchange between the refrigerant in the refrigerant circuit 206 and the power element. Is cooled.
 前記の室外機202では、冷媒通路214をパワー素子と熱的に接続するために当該冷媒通路214が電装品モジュール220の近傍に配設されている。この冷媒通路214では、当該冷媒通路214の内部を流れる冷媒の温度によって、冷媒通路214の表面に結露や霜が生じる場合がある。そのため、この冷媒通路214の表面に生じた結露等が当該冷媒通路214を伝って電装品モジュール220に到達し、当該電装品モジュール220に実装された電装品が濡れて損傷することが懸念される。 In the outdoor unit 202, the refrigerant passage 214 is disposed in the vicinity of the electrical component module 220 in order to thermally connect the refrigerant passage 214 to the power element. In the refrigerant passage 214, condensation or frost may be generated on the surface of the refrigerant passage 214 depending on the temperature of the refrigerant flowing in the refrigerant passage 214. Therefore, there is a concern that condensation or the like generated on the surface of the refrigerant passage 214 reaches the electric component module 220 through the refrigerant passage 214 and the electric component mounted on the electric component module 220 gets wet and is damaged. .
日本国特開2008-2741号公報Japanese Unexamined Patent Publication No. 2008-27441
 本発明は、上記問題点に鑑み、電装品モジュールの近傍に冷媒通路が配設されても、当該電装品モジュールに実装された電装品が濡れ難い空気調和装置を提供することを課題とする。 In view of the above problems, an object of the present invention is to provide an air conditioner in which an electrical component mounted on the electrical component module is hardly wetted even if a refrigerant passage is disposed in the vicinity of the electrical component module.
 本発明は、冷媒が循環する冷媒回路と、ケーシングと、前記ケーシングの内部に配置され、パワー素子が実装された第1の回路基板とパワー素子以外の電装品が実装された第2の回路基板と前記パワー素子に接合される被冷却部とを有する電装品モジュールと、前記冷媒回路の冷媒と熱的に接続されて前記被冷却部を冷却する冷却部と、を備え、前記電装品モジュールでは、前記第1の回路基板が前記被冷却部を挟んで前記冷却部と反対側に配置されると共に、前記第2の回路基板が前記冷却部よりも上方側に配置されていることを特徴とする。 The present invention includes a refrigerant circuit in which a refrigerant circulates, a casing, a first circuit board that is disposed inside the casing and on which a power element is mounted, and a second circuit board on which an electrical component other than the power element is mounted. And an electrical component module having a cooled portion joined to the power element, and a cooling portion that is thermally connected to the refrigerant of the refrigerant circuit and cools the cooled portion, The first circuit board is disposed on the opposite side of the cooling part with the cooled part interposed therebetween, and the second circuit board is disposed on the upper side of the cooling part. To do.
 以上より、電装品モジュールがケーシングの内部に配置され、この電装品モジュールの近傍に冷媒通路が配設されても、当該電装品モジュールに実装された電装品が濡れ難い空気調和装置を提供することができる。 As described above, even when the electrical component module is disposed inside the casing and the refrigerant passage is disposed in the vicinity of the electrical component module, an air conditioner in which the electrical component mounted on the electrical component module is difficult to get wet is provided. Can do.
図1は本実施形態に係る空気調和装置の配管系統を概略的に示す図である。Drawing 1 is a figure showing roughly the piping system of the air harmony device concerning this embodiment. 図2は前記室外機の斜視図である。FIG. 2 is a perspective view of the outdoor unit. 図3は前記室外機の斜視図であり、この図は第2前板を外した状態を示している。FIG. 3 is a perspective view of the outdoor unit, in which the second front plate is removed. 図4は前記室外機の斜視図であり、この図は第2前板を取り除いた状態を示している。FIG. 4 is a perspective view of the outdoor unit, which shows a state in which the second front plate is removed. 図5は前記室外機の平面図であり、この図は第2前板を外し、天板を取り除いた状態を示している。FIG. 5 is a plan view of the outdoor unit, in which the second front plate is removed and the top plate is removed. 図6は前記室外機の斜視図であり、この図は第1接続配管及び第2接続配管を引き出した状態を示す斜視図である。FIG. 6 is a perspective view of the outdoor unit. FIG. 6 is a perspective view showing a state in which the first connection pipe and the second connection pipe are pulled out. 図7(a)は機械室上部の一部拡大斜視図であり、図7(b)は図7(a)から油分離器を取り除いた状態を示している。FIG. 7A is a partially enlarged perspective view of the upper part of the machine room, and FIG. 7B shows a state where the oil separator is removed from FIG. 7A. 図8は前記室外機の側面図であり、この図は第2前板、右側板、背面側板及び天板を取り除いた状態を示している。FIG. 8 is a side view of the outdoor unit, in which the second front plate, the right side plate, the back side plate and the top plate are removed. 図9は前記室外機に設けられる電装品モジュールの背面側からの斜視図であり、この図は背面保護カバーを取り除いた状態を示している。FIG. 9 is a perspective view from the back side of the electrical component module provided in the outdoor unit, and this figure shows a state in which the back protective cover is removed. 図10は前記電装品モジュールの前面下方側からの斜視図であり、この図は端子台が開位置の状態を表している。FIG. 10 is a perspective view from the lower front side of the electrical component module. This figure shows the terminal block in the open position. 図11は前記電装品モジュールの前面上方側からの斜視図であり、この図は端子台が開位置の状態を表している。FIG. 11 is a perspective view from above the front side of the electrical component module, and this figure shows the terminal block in the open position. 図12は前記電装品モジュールの前面上方側からの斜視図であり、この図は端子台が閉位置の状態を表している。FIG. 12 is a perspective view from above the front side of the electrical component module, and this figure shows the terminal block in the closed position. 図13は第1基板部に実装されたパワー素子と伝熱板との接続状態を概略的に示す図である。FIG. 13 is a diagram schematically showing a connection state between the power element mounted on the first substrate portion and the heat transfer plate. 図14(a)は前記室外機の内部に取り込まれた室外空気の流れを概略的に示す平面図であり、図14(b)は前記室外機の内部に取り込まれた室外空気の流れを概略的に示す正面図である。FIG. 14A is a plan view schematically showing the flow of outdoor air taken into the outdoor unit, and FIG. 14B is a schematic view showing the flow of outdoor air taken into the outdoor unit. FIG. 図15は前記室外機に電装品モジュールを配設する手順を示す図であり、この図は、端子台が開位置の状態の電装品モジュールを冷媒ジャケットの奥側に差し込むように降下させる前の図である。FIG. 15 is a diagram showing a procedure for disposing the electrical component module in the outdoor unit, and this figure shows a state before the electrical component module with the terminal block in the open position is lowered so as to be inserted into the back side of the refrigerant jacket. FIG. 図16は図15の状態の電装品モジュールを降下させて冷媒ジャケットの奥側に配置した状態で固定し、端子台を閉位置に回動させた状態の図である。FIG. 16 is a view showing a state in which the electrical component module in the state of FIG. 15 is lowered and fixed in a state where it is disposed on the back side of the refrigerant jacket, and the terminal block is rotated to the closed position. 図17は他実施形態に係る空気調和装置の室外機の斜視図であり、この図は前記室外機の内部の構成要素の配置を示している。FIG. 17 is a perspective view of an outdoor unit of an air conditioner according to another embodiment, and this drawing shows the arrangement of components inside the outdoor unit. 図18は従来の空気調和装置の配管系統を概略的に示す図である。FIG. 18 is a diagram schematically showing a piping system of a conventional air conditioner.
 以下、本発明の一実施形態について、添付図面を参照しつつ説明する。 Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
 図1は、本実施形態に係る空気調和装置10の配管系統を示している。この空気調和装置10は、冷房運転と暖房運転とが可能なヒートポンプ式の空気調和装置10である。図1に示すように、空気調和装置10は、室外に設置される室外機11と、室内に設置される室内機12とを備えている。室外機11と室内機12とは、第1接続配管13及び第2接続配管14を介して接続されている。空気調和装置10には、これら接続配管13,14を含む配管が閉回路状に接続された冷媒回路18が設けられている。冷媒回路18には、主として、室内熱交換器20、圧縮機23、油分離器24、室外熱交換器25、膨張機構である膨張弁26、アキュムレータ27、四方切換弁28が設けられている。冷媒回路18では、冷媒が循環することにより、蒸気圧縮式の冷凍サイクルが行われる。 FIG. 1 shows a piping system of an air conditioner 10 according to the present embodiment. The air conditioner 10 is a heat pump type air conditioner 10 capable of cooling operation and heating operation. As shown in FIG. 1, the air conditioner 10 includes an outdoor unit 11 installed outside and an indoor unit 12 installed indoors. The outdoor unit 11 and the indoor unit 12 are connected via a first connection pipe 13 and a second connection pipe 14. The air conditioner 10 is provided with a refrigerant circuit 18 in which pipes including the connection pipes 13 and 14 are connected in a closed circuit shape. The refrigerant circuit 18 is mainly provided with an indoor heat exchanger 20, a compressor 23, an oil separator 24, an outdoor heat exchanger 25, an expansion valve 26 that is an expansion mechanism, an accumulator 27, and a four-way switching valve 28. In the refrigerant circuit 18, a refrigerant is circulated to perform a vapor compression refrigeration cycle.
 室内熱交換器20は、冷媒を室内空気と熱交換させるための熱交換器であり、室内機12に設けられている。室内熱交換器20として、例えばクロスフィン型のフィン・アンド・チューブ熱交換器等を採用することができる。室内熱交換器20の近傍には、室内空気を室内熱交換器20へ送風するための室内ファン(図示省略)が設けられている。 The indoor heat exchanger 20 is a heat exchanger for exchanging heat between the refrigerant and room air, and is provided in the indoor unit 12. As the indoor heat exchanger 20, for example, a cross fin type fin-and-tube heat exchanger or the like can be employed. An indoor fan (not shown) for blowing indoor air to the indoor heat exchanger 20 is provided in the vicinity of the indoor heat exchanger 20.
 圧縮機23、油分離器24、室外熱交換器25、膨張弁26、アキュムレータ27、四方切換弁28は、室外機11に設けられている。これらは、いずれもケーシング30(図2~図5参照)の内部に収容されている。 Compressor 23, oil separator 24, outdoor heat exchanger 25, expansion valve 26, accumulator 27, and four-way switching valve 28 are provided in outdoor unit 11. These are all housed in the casing 30 (see FIGS. 2 to 5).
 圧縮機23は、吸入ポート、圧縮機構及び吐出ポートを有し、吸入ポートから吸入した冷媒を圧縮機構で圧縮して、吐出ポートから吐出する。圧縮機23としては、例えば、スクロール圧縮機等の種々の圧縮機を採用することができる。 The compressor 23 has a suction port, a compression mechanism, and a discharge port, compresses the refrigerant sucked from the suction port by the compression mechanism, and discharges it from the discharge port. As the compressor 23, various compressors, such as a scroll compressor, are employable, for example.
 油分離器24は、圧縮機23から吐出された潤滑油及び冷媒の混合流体から潤滑油を分離するためのものである。分離された冷媒は四方切換弁28へ送られ、潤滑油は圧縮機23に戻される。 The oil separator 24 is for separating the lubricating oil from the mixed fluid of the lubricating oil and the refrigerant discharged from the compressor 23. The separated refrigerant is sent to the four-way switching valve 28, and the lubricating oil is returned to the compressor 23.
 室外熱交換器25は、冷媒を室外空気と熱交換させるためのものである。室外熱交換器25として、例えばクロスフィン型のフィン・アンド・チューブ熱交換器等を採用することができる。室外熱交換器25の近傍には、室外空気を室外熱交換器25へ送風(供給)するための室外ファン(送風手段)31が設けられている。 The outdoor heat exchanger 25 is for exchanging heat between the refrigerant and outdoor air. As the outdoor heat exchanger 25, for example, a cross fin type fin-and-tube heat exchanger or the like can be employed. In the vicinity of the outdoor heat exchanger 25, an outdoor fan (air blowing means) 31 for blowing (supplying) outdoor air to the outdoor heat exchanger 25 is provided.
 膨張弁26は、冷媒回路18において室外熱交換器25と室内熱交換器20との間に配設され、流入した冷媒を膨張させて所定の圧力に減圧させる。膨張弁26として、例えば開度可変の電子膨張弁26を採用することができる。 The expansion valve 26 is disposed between the outdoor heat exchanger 25 and the indoor heat exchanger 20 in the refrigerant circuit 18, and expands the refrigerant flowing therein to reduce the pressure to a predetermined pressure. As the expansion valve 26, for example, an electronic expansion valve 26 having a variable opening can be employed.
 アキュムレータ27は、流入した冷媒を気液分離するものであり、冷媒回路18において圧縮機23の吸入ポートと四方切換弁28との間に配設されている。アキュムレータ27で分離されたガス冷媒は、圧縮機23に吸入される。 The accumulator 27 is used for gas-liquid separation of the inflowing refrigerant, and is disposed between the suction port of the compressor 23 and the four-way switching valve 28 in the refrigerant circuit 18. The gas refrigerant separated by the accumulator 27 is sucked into the compressor 23.
 四方切換弁28には、第1~第4の4つのポートが設けられている。四方切換弁28は、第1ポートと第3ポートとを連通すると同時に第2ポートと第4ポートとを連通する第1状態(図1において実線で示す状態)と、第1ポートと第4ポートとを連通すると同時に第2ポートと第3ポートとを連通する第2状態(図1において破線で示す状態)とに切換可能となっている。第1ポートは、油分離器24を介して圧縮機23の吐出ポートに接続され、また第2ポートは、アキュムレータ27を介して圧縮機23の吸入ポートに接続され、また第3ポートは、室外熱交換器25に接続され、また第4ポートは、第1接続配管13を介して室内熱交換器20に接続されている。空気調和装置10が冷房運転を行うときには、四方切換弁28は第1状態に切り換えられる。また、空気調和装置10が暖房運転を行うときには、四方切換弁28は第2状態に切り換えられる。 The four-way switching valve 28 is provided with first to fourth ports. The four-way switching valve 28 includes a first state (state indicated by a solid line in FIG. 1) in which the first port and the third port are communicated with each other and a second port and a fourth port, and the first port and the fourth port. Can be switched to a second state (state indicated by a broken line in FIG. 1) in which the second port and the third port are communicated simultaneously. The first port is connected to the discharge port of the compressor 23 via the oil separator 24, the second port is connected to the suction port of the compressor 23 via the accumulator 27, and the third port is connected to the outdoor It is connected to the heat exchanger 25 and the fourth port is connected to the indoor heat exchanger 20 via the first connection pipe 13. When the air conditioner 10 performs the cooling operation, the four-way switching valve 28 is switched to the first state. When the air conditioner 10 performs the heating operation, the four-way switching valve 28 is switched to the second state.
 冷媒回路18の液側配管には、冷媒ジャケット37が接合されている。冷媒ジャケット37は、電装品モジュール35の発熱部を冷却するためのものである。図例では、冷媒ジャケット37が接合される液側配管は、冷媒回路18における室外熱交換器25と膨張弁26との間の液側配管となっているが、冷媒ジャケット37が接合される冷媒配管は、これに限られない。ただし、冷却能力を考慮すれば、冷媒ジャケット37は、液側配管に接合されるのが好ましい。 A refrigerant jacket 37 is joined to the liquid side pipe of the refrigerant circuit 18. The refrigerant jacket 37 is for cooling the heat generating part of the electrical component module 35. In the illustrated example, the liquid side pipe to which the refrigerant jacket 37 is joined is a liquid side pipe between the outdoor heat exchanger 25 and the expansion valve 26 in the refrigerant circuit 18, but the refrigerant to which the refrigerant jacket 37 is joined. The piping is not limited to this. However, considering the cooling capacity, the refrigerant jacket 37 is preferably joined to the liquid side pipe.
 冷媒ジャケット37に接合された配管には、冷房運転時には、室外熱交換器25で凝縮した冷媒が流れ、暖房運転時には、室内熱交換器20で凝縮し、膨張弁26で減圧された冷媒が流れる。これらの冷媒の温度は運転条件等によって異なるが、例えば冷房運転時で40~45℃程度である。 In the pipe joined to the refrigerant jacket 37, the refrigerant condensed by the outdoor heat exchanger 25 flows during the cooling operation, and the refrigerant condensed by the indoor heat exchanger 20 and decompressed by the expansion valve 26 flows during the heating operation. . The temperature of these refrigerants varies depending on operating conditions and the like, but is about 40 to 45 ° C. during cooling operation, for example.
 冷媒ジャケット37は、扁平状に形成されていて、電装品モジュール35の所定位置に面接合可能に構成されている。電装品モジュール35は、冷媒回路18の動作制御を行うための電装品組立体であり、室外機11に設けられている。電装品モジュール35及び冷媒ジャケット37の詳細な構成については後述する。 The refrigerant jacket 37 is formed in a flat shape, and is configured to be surface-bondable at a predetermined position of the electrical component module 35. The electrical component module 35 is an electrical component assembly for performing operation control of the refrigerant circuit 18, and is provided in the outdoor unit 11. Detailed configurations of the electrical component module 35 and the refrigerant jacket 37 will be described later.
 図2~図5に示すように、室外機11は、基台としての底板30aと、この底板30aの周縁部に立設された側板30bと、側板30bの上端部に設けられる天板30cとを有するケーシング30を備える。ケーシング30の側板30bは、互いに略平行な前面側板130及び背面側板131と、これら前面側板130と背面側板131との幅方向両端部(即ち、前面から見たときの左側端部同士及び右側端部同士)をそれぞれつなぐ一対の側面側板132とにより構成されている。さらに、前面側板130は、左右に並ぶ2枚の前板(第1前板130a及び第2前板130b)により構成されている。このように構成されるケーシング30によって、室外機11は、全体として略直方体形状の外観を呈している。 As shown in FIGS. 2 to 5, the outdoor unit 11 includes a bottom plate 30a as a base, a side plate 30b erected on the peripheral edge of the bottom plate 30a, and a top plate 30c provided at the upper end of the side plate 30b. A casing 30 is provided. The side plate 30b of the casing 30 includes a front side plate 130 and a rear side plate 131 that are substantially parallel to each other, and both ends in the width direction of the front side plate 130 and the rear side plate 131 (that is, the left side ends and the right side ends when viewed from the front side). And a pair of side surface plates 132 that connect each other). Furthermore, the front side plate 130 is configured by two front plates (a first front plate 130a and a second front plate 130b) arranged side by side. By the casing 30 configured in this way, the outdoor unit 11 has an approximately rectangular parallelepiped appearance as a whole.
 このケーシング30の内部には、当該ケーシング30の内部空間を2つの空間に区切る仕切り板39が設けられている。仕切り板39は、ケーシング30の内部空間の下端部から上端部に亘る大きさを有していて、ケーシング30の底板30aに立設されるように設けられている。この仕切り板39により、ケーシング30の内部空間は、室外熱交換器25及び室外ファン31が収容される熱交換室40と、圧縮機23、油分離器24、電装品モジュール35等が収容される機械室41とに仕切られている。 A partition plate 39 that divides the internal space of the casing 30 into two spaces is provided inside the casing 30. The partition plate 39 has a size extending from the lower end portion to the upper end portion of the internal space of the casing 30, and is provided so as to stand on the bottom plate 30 a of the casing 30. By this partition plate 39, the internal space of the casing 30 accommodates the heat exchange chamber 40 in which the outdoor heat exchanger 25 and the outdoor fan 31 are accommodated, the compressor 23, the oil separator 24, the electrical component module 35, and the like. The machine room 41 is partitioned.
 熱交換室40は、ケーシング30を前面から見たときの左側に位置し、機械室41は、ケーシング30を前面から見たときの右側に位置している。ケーシング30の前面側板130を構成する2枚の前板130a,130bのうち、第1前板130aは、熱交換室40の前面に配置され、第2前板130bは、機械室41の前面に配置されている。第1前板130aには、熱交換室40に取り入れられた室外空気をケーシング30の外部へ吹き出すための吹き出し口が開口している。 The heat exchange chamber 40 is located on the left side when the casing 30 is viewed from the front, and the machine room 41 is positioned on the right side when the casing 30 is viewed from the front. Of the two front plates 130 a and 130 b constituting the front side plate 130 of the casing 30, the first front plate 130 a is disposed on the front surface of the heat exchange chamber 40, and the second front plate 130 b is disposed on the front surface of the machine room 41. Has been placed. The first front plate 130 a has an opening for blowing outdoor air taken into the heat exchange chamber 40 to the outside of the casing 30.
 第2前板130bは、右側の端部が背面側に折り曲げられ、平面から見てL字形となっている(図5参照)。第2前板130bの右下端部には、切欠き部135が形成されている。具体的には、前面側の幅方向の略中央部から折り曲げ部位の後端部にかけて、第2前板130bの右下端部が切り欠かれている。この切欠き部135を塞ぐようにカバー部材150が配設されている。 The second front plate 130b has an L-shape when viewed from the plane, with the right end bent to the back side (see FIG. 5). A notch 135 is formed at the lower right end of the second front plate 130b. Specifically, the right lower end portion of the second front plate 130b is cut out from the substantially central portion in the width direction on the front surface side to the rear end portion of the bent portion. A cover member 150 is disposed so as to close the notch 135.
 カバー部材150は、平面から見てL字形に折り曲げられた板状の部材であり、底板30aに立設されるように設けられる。このカバー部材150の正面側と右側面側とでは、その一部(蓋部151)が取り外し可能に構成されている。この蓋部151を取り外すことによりケーシング30内部から配管を引き出すことができる配管引出穴(図6参照)が開口する。この配管引出穴は、ケーシング30の内部と外部とを連通し、第1接続配管13及び第2接続配管14のケーシング30の内部からの引き出しに用いられる。これら前面側の蓋部151と右側面側の蓋部151とは、室外機11の設置状況に応じた第1接続配管13及び第2接続配管14の室外機11(ケーシング30)からの引き出し方向に基づいて選択的に取り外される。 The cover member 150 is a plate-like member that is bent in an L shape when viewed from above, and is provided to stand on the bottom plate 30a. A part of the cover member 150 (the lid portion 151) is configured to be removable on the front side and the right side. By removing the lid 151, a pipe lead-out hole (see FIG. 6) through which the pipe can be drawn out from the inside of the casing 30 is opened. The pipe lead-out hole communicates the inside and the outside of the casing 30 and is used for drawing out the first connection pipe 13 and the second connection pipe 14 from the inside of the casing 30. The front-side lid 151 and the right-side lid 151 are drawn out from the outdoor unit 11 (casing 30) of the first connection pipe 13 and the second connection pipe 14 according to the installation status of the outdoor unit 11. Selectively removed.
 例えば、室外機11が設置され、この室外機11の側面から第1接続配管13及び第2接続配管14が引き出される場合には、図6に示されるように、カバー部材150の右側面側の蓋部151が取り外され、開口した配管引出穴を通じて第1接続配管13及び第2接続配管14が引き出される。尚、本実施形態では、配管引出穴を通じて引き出される第1接続配管13及び第2接続管は、テープ等により束ねられている。 For example, when the outdoor unit 11 is installed and the first connection pipe 13 and the second connection pipe 14 are pulled out from the side surface of the outdoor unit 11, as shown in FIG. The lid 151 is removed, and the first connection pipe 13 and the second connection pipe 14 are drawn out through the opened pipe lead-out hole. In the present embodiment, the first connection pipe 13 and the second connection pipe drawn through the pipe drawing hole are bundled with a tape or the like.
 このように、第1接続配管13及び第2接続管14が配設されたときに、カバー部材150の配管引出穴周縁部と第1接続配管13及び第2接続配管14との間に生じた間隙はパテや専用部材等によって埋められる。 As described above, when the first connection pipe 13 and the second connection pipe 14 are disposed, the gap is generated between the pipe lead-out hole peripheral portion of the cover member 150 and the first connection pipe 13 and the second connection pipe 14. The gap is filled with a putty or a special member.
 また、カバー部材150には、開口部152が設けられている。この開口部152は、カバー部材150における各蓋部151の上方に設けられ、ケーシング30の内部と外部とを連通している。各開口部152は、水平方向に長く開口している。この開口部152からは、空気調和装置10の作動時に室外空気が機械室41の内部に流入する。 Also, the cover member 150 is provided with an opening 152. The opening 152 is provided above each lid 151 in the cover member 150 and communicates the inside and the outside of the casing 30. Each opening 152 is long in the horizontal direction. From the opening 152, outdoor air flows into the machine chamber 41 when the air conditioner 10 is operated.
 ケーシング30を前面から見て右側の側面側板132(右側板132a)は、第2前板130bの前記折り曲げ部位と共にケーシング30の右側面を構成するため、左側の側面側板132(左側板132b)よりも幅が小さくなるように形成されている(図5参照)。この右側板132aの前端部には、その中間高さ位置に電装品モジュール35を固定するときに用いられるネジ穴133が設けられている(図15参照)。本実施形態では、2つのネジ穴133が上下に間隔をおいて設けられている。 When the casing 30 is viewed from the front, the right side plate 132 (right plate 132a) constitutes the right side of the casing 30 together with the bent portion of the second front plate 130b, and therefore the left side plate 132 (left plate 132b). Is also formed to have a smaller width (see FIG. 5). A screw hole 133 that is used when fixing the electrical component module 35 at the intermediate height position is provided at the front end portion of the right side plate 132a (see FIG. 15). In the present embodiment, two screw holes 133 are provided at intervals in the vertical direction.
 仕切り板39は、底板30aから天板30cまでの高さを有し、その前端部が前面側板130(詳細には、第1前板130aの右端部)に結合され、後端部が室外熱交換器25の端部(図5における右側の端部)に結合されている。この仕切り板39は、前端部からケーシング30の背面側に向って拡がり、ケーシング30の奥行方向の略中央位置から室外熱交換器25の端部に向って右側に湾曲している(図5参照)。この仕切り板39の上部には、機械室41と熱交換室40とを連通する開口部39a(図7(b)参照)が設けられている。 The partition plate 39 has a height from the bottom plate 30a to the top plate 30c, its front end is coupled to the front side plate 130 (specifically, the right end of the first front plate 130a), and the rear end is outdoor heat. It is coupled to the end of the exchanger 25 (the right end in FIG. 5). The partition plate 39 extends from the front end toward the back side of the casing 30 and is curved to the right from the substantially center position in the depth direction of the casing 30 toward the end of the outdoor heat exchanger 25 (see FIG. 5). ). An opening 39 a (see FIG. 7B) that connects the machine room 41 and the heat exchange chamber 40 is provided on the upper part of the partition plate 39.
 この開口部39aは、上下方向に長く開口し、仕切り板39の後端側の湾曲している部位に設けられている。この部位は、前面から見て、仕切り板39の上部近傍に配置された油分離器24の裏側となる位置である(図7(a)及び図7(b)参照)。このように仕切り板39の開口部39aに対向する位置に油分離器24が配置されることにより、熱交換室40から開口部39aを通じて機械室41へ雨水等が浸入したとしても、この雨水等は、油分離器24にぶつかって落下し、機械室41の前面側へ到達できない。後述するように機械室41の前面側には電装品が配設されているため、この電装品が雨水等で濡れることを油分離器24が阻止している。尚、本実施形態においては、開口部39aと対向する位置に油分離器24が配設されているが、これに限定されず、開口部39aと対向する位置に他の冷媒回路構成要素が配設されてもよく、これら冷媒回路構成要素を支持する部材等が配設されてもよい。また、雨水等の機械室41前面側への浸入を阻止するための専用部材が別途設けられてもよい。 The opening 39a is long in the vertical direction and is provided at a curved portion on the rear end side of the partition plate 39. This part is a position on the back side of the oil separator 24 arranged in the vicinity of the upper portion of the partition plate 39 when viewed from the front (see FIGS. 7A and 7B). By arranging the oil separator 24 at a position facing the opening 39a of the partition plate 39 in this way, even if rainwater or the like enters the machine room 41 from the heat exchange chamber 40 through the opening 39a, the rainwater or the like Falls on the oil separator 24 and cannot reach the front side of the machine room 41. As will be described later, since the electrical component is disposed on the front side of the machine room 41, the oil separator 24 prevents the electrical component from getting wet with rainwater or the like. In this embodiment, the oil separator 24 is disposed at a position facing the opening 39a. However, the present invention is not limited to this, and other refrigerant circuit components are disposed at a position facing the opening 39a. A member for supporting these refrigerant circuit components may be provided. In addition, a dedicated member for preventing intrusion of rainwater or the like into the front side of the machine room 41 may be separately provided.
 仕切り板39の前端部には、右側板132aの前端部に設けられたネジ穴133と対応する所定の高さ位置に、電装品モジュール35を固定するための固定部位39bが設けられている(図15参照)。この固定部位39bは、仕切り板39から機械室41の内部に向かって突出している部位であり、本実施形態では、上下に延びる略三角柱状の部位である。この固定部位39bの前面側の面には、ネジ穴134が設けられている。このネジ穴134は、上下に2つ並んでいる。 At the front end portion of the partition plate 39, a fixing portion 39b for fixing the electrical component module 35 is provided at a predetermined height position corresponding to the screw hole 133 provided at the front end portion of the right side plate 132a ( (See FIG. 15). The fixing portion 39b is a portion that protrudes from the partition plate 39 toward the inside of the machine room 41, and is a substantially triangular prism-like portion that extends vertically in the present embodiment. A screw hole 134 is provided on the front side surface of the fixed portion 39b. Two screw holes 134 are lined up and down.
 室外熱交換器25は、ケーシング30の底板30a上に設置されており、熱交換室40の下端部から上端部に亘る大きさを有する。そして、室外熱交換器25は、平面から見てL字形に形成されており、背面側板131及び左側板132bに沿うように配設されている(図5参照)。 The outdoor heat exchanger 25 is installed on the bottom plate 30a of the casing 30, and has a size ranging from the lower end portion to the upper end portion of the heat exchange chamber 40. And the outdoor heat exchanger 25 is formed in L shape seeing from the plane, and is arrange | positioned along the back side board 131 and the left side board 132b (refer FIG. 5).
 機械室41は、ケーシング30の内部空間の右側部において、図5に示すように、前後方向の全体を占めるように形成されている。そして、機械室41の内部空間の前面側には電装品モジュール35が配設されている。即ち、電装品モジュール35は、その前面がケーシング30の前面側板130(詳細には第2前板130b)におよそ平行になる姿勢で前面側板130の近傍に設置されている。従って、室外機11から第2前板130bが取り外されると、電装品モジュール35の前面が最も手前側で露出する。電装品モジュール35の背面側(後ろ側)には、冷媒配管、アキュムレータ27等の冷媒回路構成要素が配設されている。 The machine room 41 is formed so as to occupy the whole in the front-rear direction, as shown in FIG. An electrical component module 35 is disposed on the front side of the internal space of the machine room 41. That is, the electrical component module 35 is installed in the vicinity of the front side plate 130 so that the front surface thereof is approximately parallel to the front side plate 130 (specifically, the second front plate 130b) of the casing 30. Therefore, when the second front plate 130b is removed from the outdoor unit 11, the front surface of the electrical component module 35 is exposed on the most front side. Refrigerant circuit components such as a refrigerant pipe and an accumulator 27 are disposed on the back side (rear side) of the electrical component module 35.
 電装品モジュール35は、機械室41において高さ方向の中間部に配置されていて、図8に示されるように電装品モジュール35の上方及び下方は空間となっている。この電装品モジュール35では、幅方向の一端部(左端部)が仕切り板39に結合される一方、他端部(右端部)がケーシング30の側板30b(右側板132a)に結合される(図16参照)。 The electrical component module 35 is disposed in the middle of the machine room 41 in the height direction, and the upper and lower portions of the electrical component module 35 are spaces as shown in FIG. In this electrical component module 35, one end (left end) in the width direction is coupled to the partition plate 39, while the other end (right end) is coupled to the side plate 30b (right plate 132a) of the casing 30 (see FIG. 16).
 図9~図12に示すように、電装品モジュール35は、保持部材44と、回路基板45と、端子台46と、保護部材である背面保護カバー47と、を有している。保持部材44は、ケーシング30の右側板132a及び仕切り板39に結合可能に構成された主部材51と、この主部材51に結合される樹脂製の介装部材52と、主部材51の上端に設けられる把持部材(板部材)53とを備えている。 As shown in FIG. 9 to FIG. 12, the electrical component module 35 includes a holding member 44, a circuit board 45, a terminal block 46, and a back protective cover 47 which is a protective member. The holding member 44 includes a main member 51 configured to be coupled to the right side plate 132 a and the partition plate 39 of the casing 30, a resin interposed member 52 coupled to the main member 51, and an upper end of the main member 51. And a gripping member (plate member) 53 provided.
 主部材51は、板金からなる部材の適所に穴あけ加工を施すとともに、所定の形状になるように折り曲げ加工したものである。主部材51は、矩形状の主面部51aと、この主面部51aの側端部から折り曲げられた側面部51bと、主面部51aの上端部から折り曲げられた天面部51cとを有する。 The main member 51 is formed by punching a proper portion of a member made of sheet metal and bending it into a predetermined shape. The main member 51 includes a rectangular main surface portion 51a, a side surface portion 51b bent from a side end portion of the main surface portion 51a, and a top surface portion 51c bent from an upper end portion of the main surface portion 51a.
 主面部51aの左端部には、切り起こし片51d(図10参照)が設けられている。この切り起こし片51dは、電装品モジュール35の左端部を仕切り板39に結合するための部位である。具体的には、切り起こし片51dは、主面部51aの左端部から左側の側面部(左側面部)51bにかけて切り込みが設けられ、この切り込みに囲まれた部位を前面側に引き起こすことにより形成される。この切り起こし片51dは、電装品モジュール35を固定するときに、仕切り板39の固定部位39bにおけるネジ穴134が設けられた面に沿うような形状に切り起こされている。この切り起こし片51dには、貫通孔51eが設けられている。本実施形態では、仕切り板39の固定部位39bに設けられた上下に並ぶ2つのネジ穴134に対応する位置に貫通孔51eがそれぞれ設けられている。この貫通孔51eにネジB1が挿通され、仕切り板39の固定部位39bのネジ穴134にこのネジB1が螺入されることにより、当該電装品モジュール35の左端部が仕切り板39に結合される(図16参照)。 A cut and raised piece 51d (see FIG. 10) is provided at the left end of the main surface portion 51a. The cut-and-raised piece 51 d is a part for connecting the left end portion of the electrical component module 35 to the partition plate 39. Specifically, the cut-and-raised piece 51d is formed by providing a cut from the left end portion of the main surface portion 51a to the left side surface portion (left-side surface portion) 51b and causing a portion surrounded by the cut to the front side. . When the electrical component module 35 is fixed, the cut and raised piece 51d is cut and raised in a shape along the surface provided with the screw hole 134 in the fixing portion 39b of the partition plate 39. The cut-and-raised piece 51d is provided with a through hole 51e. In the present embodiment, the through holes 51e are provided at positions corresponding to the two screw holes 134 arranged on the upper and lower sides provided in the fixing portion 39b of the partition plate 39, respectively. The screw B1 is inserted into the through hole 51e, and the screw B1 is screwed into the screw hole 134 of the fixing portion 39b of the partition plate 39, whereby the left end portion of the electrical component module 35 is coupled to the partition plate 39. (See FIG. 16).
 左右の側面部51bのうち前面からみて右側の側面部(右側面部)51bの背面側端部が外側に向けて主面部51aと平行になるように折り曲げられて被当接部153が形成されている。この被当接部153の上端部と下端部とには、電装品モジュール35が固定されるときに右側板132a前端部のネジ穴133に対応する位置に貫通孔153aが設けられている。この貫通孔153aは、電装品モジュール35の右端部を右側板132aに結合するのに用いられる。具体的には、電装品モジュール35をケーシング30の内部に配置する際に、貫通孔153aにネジB2が挿通され、右側板132aの前端部に設けられたネジ穴133にこのネジB2が螺入される。これにより、当該電装品モジュール35の右端部がケーシング30の右側板132aに結合される(図16参照)。 The contacted portion 153 is formed by bending the rear side end portion of the right side surface portion (right side surface portion) 51b of the left and right side surface portions 51b in parallel with the main surface portion 51a toward the outside. Yes. A through hole 153a is provided at a position corresponding to the screw hole 133 at the front end of the right side plate 132a when the electrical component module 35 is fixed to the upper end and the lower end of the contacted portion 153. The through hole 153a is used to connect the right end portion of the electrical component module 35 to the right side plate 132a. Specifically, when the electrical component module 35 is disposed inside the casing 30, the screw B2 is inserted into the through hole 153a, and the screw B2 is screwed into the screw hole 133 provided in the front end portion of the right side plate 132a. Is done. Thereby, the right end part of the electrical component module 35 is coupled to the right side plate 132a of the casing 30 (see FIG. 16).
 介装部材52は、主部材51の主面部51aに結合されるものであり、回路基板45の熱が主部材51に伝わるのを抑制する。 The intervention member 52 is coupled to the main surface portion 51 a of the main member 51, and suppresses the heat of the circuit board 45 from being transmitted to the main member 51.
 把持部材53は、その先端側が主部材51の上端から水平面に沿って前面側に突出した板状の部材である。この把持部材53には、先端部に上下方向に貫通する貫通孔53aが設けられている。この貫通孔53aは、把持部材53を把持するときに作業者等が指を挿通させて当該把持部材53を把持するのに用いられる。この把持部材53は、前面から見て主部材51において中央よりも左寄りに設けられている。また、先端部と左右両側の端部とがそれぞれ上方に向って折り曲げられ、立ち上がり部53bが形成されている。この立ち上がり部53bによって把持部材53の強度が向上する。この把持部材53上には、貫通孔53aよりも後端側にリアクター56cが載置されている。 The gripping member 53 is a plate-like member whose front end protrudes from the upper end of the main member 51 to the front side along the horizontal plane. The gripping member 53 is provided with a through hole 53a penetrating in the vertical direction at the tip. The through hole 53 a is used when an operator or the like inserts a finger to grip the gripping member 53 when gripping the gripping member 53. The grip member 53 is provided on the left side of the center of the main member 51 when viewed from the front. Further, the leading end portion and the left and right end portions are bent upward to form a rising portion 53b. The strength of the gripping member 53 is improved by the rising portion 53b. On the gripping member 53, a reactor 56c is placed on the rear end side of the through hole 53a.
 回路基板45は、主部材51の主面部51aにおける背面側に配設される背面側基板54(図9参照)と、主部材51の主面部51aにおける前面側に配設される前面側基板55(図10~図12参照)とを備えている。これら各基板54,55は、互いに平行となるように電装品モジュール35に配設されている。 The circuit board 45 includes a rear substrate 54 (see FIG. 9) disposed on the rear surface side of the main surface portion 51a of the main member 51, and a front substrate 55 disposed on the front surface side of the main surface portion 51a of the main member 51. (See FIGS. 10 to 12). These substrates 54 and 55 are arranged in the electrical component module 35 so as to be parallel to each other.
 背面側基板54は、パワー素子56a(図13参照)及びパワー素子56a以外のコンデンサ等の素子56bを含む電装品56が複数実装される第1基板部54aと、パワー素子56a以外の素子56bからなる電装品56が複数実装される第2基板部54bとを備えている。第2基板部54bに実装される電装品56としては、例えばノイズフィルタ等が挙げられる。第2基板部54bは、電装品56が背面側になるように主部材51に固定されている。 The back substrate 54 includes a first substrate portion 54a on which a plurality of electrical components 56 including a power element 56a (see FIG. 13) and an element 56b such as a capacitor other than the power element 56a are mounted, and an element 56b other than the power element 56a. And a second substrate part 54b on which a plurality of electrical components 56 are mounted. Examples of the electrical component 56 mounted on the second substrate unit 54b include a noise filter. The second substrate portion 54b is fixed to the main member 51 so that the electrical component 56 is on the back side.
 第2基板部54bは、主部材51の主面部51aにおける上側部に結合されており、第1基板部54aは、第2基板部54bの下側に配設されている。第1基板部54aは、主部材51の主面部51aに結合された介装部材52に結合されている。即ち、第1基板部54aは、主部材51に間接的に結合される一方、第2基板部54bは、主部材51に直接的に結合されている。 The second substrate portion 54b is coupled to the upper portion of the main surface portion 51a of the main member 51, and the first substrate portion 54a is disposed below the second substrate portion 54b. The first substrate portion 54 a is coupled to an interposed member 52 that is coupled to the main surface portion 51 a of the main member 51. That is, the first substrate portion 54 a is indirectly coupled to the main member 51, while the second substrate portion 54 b is directly coupled to the main member 51.
 第1基板部54aに設けられるパワー素子56aとしては、例えば圧縮機制御用インバータ、ファンモータ制御用モジュール等が挙げられる。即ち、第1基板部54aには、複数のパワー素子56aが実装されている。これらパワー素子56aは第1基板部54aの前面に実装されている。一方、第1基板部54aの背面には、パワー素子56a以外の電装品56が実装される。 Examples of the power element 56a provided in the first substrate portion 54a include a compressor control inverter and a fan motor control module. That is, a plurality of power elements 56a are mounted on the first substrate portion 54a. These power elements 56a are mounted on the front surface of the first substrate portion 54a. On the other hand, an electrical component 56 other than the power element 56a is mounted on the back surface of the first substrate portion 54a.
 前面側基板55の前面には、パワー素子56a以外の電装品56が多数実装されている。前面側基板55に実装される電装品には、試運転時やメンテナンス時等に作業者が操作するための電装品、制御動作状況を表示可能な電装品等が含まれている。前面側基板55は、主部材51の主面部51aにおいて、主として上側寄りに配設されている。即ち、前面側基板55は、主面部51aにおいて、後述する伝熱板60が配設された場所よりも上方側に配設されている。 Many electrical components 56 other than the power element 56 a are mounted on the front surface of the front substrate 55. The electrical components mounted on the front substrate 55 include electrical components that are operated by an operator during trial operation and maintenance, electrical components that can display the control operation status, and the like. The front side substrate 55 is disposed mainly on the upper side in the main surface portion 51 a of the main member 51. That is, the front substrate 55 is disposed on the main surface 51a above the place where the heat transfer plate 60 described later is disposed.
 第1基板部54aに実装された複数のパワー素子56aの前面には、伝熱板60が面接合されている(図13参照)。即ち、伝熱板60は、これら複数のパワー素子56aの配設位置を包含する大きさの部材であり、例えばアルミニウム等の熱伝導性の高い材質で構成されている。 The heat transfer plate 60 is surface-bonded to the front surface of the plurality of power elements 56a mounted on the first substrate portion 54a (see FIG. 13). That is, the heat transfer plate 60 is a member having a size including the positions where the plurality of power elements 56a are disposed, and is made of a material having high thermal conductivity such as aluminum.
 第1基板部54aは、主部材51の主面部51aにおける背面に結合された介装部材52の背面に結合されている。主部材51の主面部51a及び介装部材52には、伝熱板60を挿通可能な大きさの開口部61(図9参照)が形成されている。そして、伝熱板60は、この開口部61を通して主部材51の前面側に露出している。なお、開口部61は、図9に破線で示すようにL字形となっている。 The first substrate portion 54a is coupled to the back surface of the interposed member 52 that is coupled to the back surface of the main surface portion 51a of the main member 51. An opening 61 (see FIG. 9) having a size that allows the heat transfer plate 60 to be inserted is formed in the main surface portion 51 a of the main member 51 and the interposed member 52. The heat transfer plate 60 is exposed to the front side of the main member 51 through the opening 61. The opening 61 is L-shaped as indicated by a broken line in FIG.
 伝熱板60の前面には、冷媒ジャケット37が面接合されている。冷媒ジャケット37は、ねじ締結により伝熱板60に固定されている。 A refrigerant jacket 37 is surface joined to the front surface of the heat transfer plate 60. The refrigerant jacket 37 is fixed to the heat transfer plate 60 by screw fastening.
 冷媒ジャケット37は、例えばアルミニウム等の熱伝導性の高い材質で構成された厚みのある板材により構成されている。この冷媒ジャケット37には冷媒回路18の冷媒配管18aが接合されている。即ち、冷媒回路18の冷媒を流通させる冷媒配管18aに接合される冷媒ジャケット37が、伝熱板60を介してパワー素子56aに熱的に接続されている。従って、伝熱板60は、パワー素子56aに接合されると共に、冷媒ジャケット37を熱的に接続可能な受け部として機能する。 The refrigerant jacket 37 is made of a thick plate made of a material having high thermal conductivity such as aluminum. A refrigerant pipe 18 a of the refrigerant circuit 18 is joined to the refrigerant jacket 37. That is, the refrigerant jacket 37 joined to the refrigerant pipe 18 a through which the refrigerant of the refrigerant circuit 18 flows is thermally connected to the power element 56 a via the heat transfer plate 60. Accordingly, the heat transfer plate 60 is joined to the power element 56a and functions as a receiving portion to which the refrigerant jacket 37 can be thermally connected.
 図10及び図13に示すように、冷媒ジャケット37は、横長の長方形状に形成される。この冷媒ジャケット37には、長手方向に延びる溝(図13参照)が形成されている。この溝は上下に2つ設けられており、互いに平行となっている。この2つの溝にU字状に折り曲げられた冷媒配管18aが圧入されることにより、冷媒ジャケット37に冷媒配管18aが接合される。冷媒ジャケット37に固定された冷媒配管18aは、冷媒回路18の冷媒を流通させる冷却用通路として機能する。尚、本実施形態では、冷媒ジャケット37の溝に冷媒配管18aを固定する構成としているが、これに限られるものではない。例えば、冷媒ジャケット37を貫通する貫通孔を2つ形成し、これらの一方に配管を接続すると共に、他方にU字管を接続する構成としてもよい。 As shown in FIGS. 10 and 13, the refrigerant jacket 37 is formed in a horizontally long rectangular shape. The refrigerant jacket 37 has a groove (see FIG. 13) extending in the longitudinal direction. Two grooves are provided on the upper and lower sides, and are parallel to each other. The refrigerant pipe 18 a bent in a U shape is press-fitted into the two grooves, so that the refrigerant pipe 18 a is joined to the refrigerant jacket 37. The refrigerant pipe 18 a fixed to the refrigerant jacket 37 functions as a cooling passage through which the refrigerant of the refrigerant circuit 18 flows. In the present embodiment, the refrigerant pipe 18a is fixed to the groove of the refrigerant jacket 37, but the present invention is not limited to this. For example, it is good also as a structure which forms two through-holes which penetrate the refrigerant | coolant jacket 37, connects a piping to one of these, and connects a U-shaped tube to the other.
 冷媒ジャケット37に接合される冷媒配管18aは、冷媒回路18において室外熱交換器25と膨張弁26との間に設けられる配管(液側配管)の一部である。具体的に、この冷媒配管18aは、上下方向に延びる一対の配管(延出部)18bの上端部につながっている。即ち、このU字状に形成された冷媒配管18aの一端部は、上下方向に延びる一方の配管18bを介して室外熱交換器25の下端部に接続され、他端部は、上下方向に延びる他方の配管18bを介して膨張弁26に接続されている。尚、本実施形態において、上下方向に延びる一対の配管18bとは、それぞれ冷媒ジャケット37から見て下方に向かって延び、熱交換器25の下端部や膨張弁26に接続される前までの部位であり、且つ水平よりも下方側に向かって延びている部位である。 The refrigerant pipe 18 a joined to the refrigerant jacket 37 is a part of a pipe (liquid side pipe) provided between the outdoor heat exchanger 25 and the expansion valve 26 in the refrigerant circuit 18. Specifically, the refrigerant pipe 18a is connected to the upper ends of a pair of pipes (extension portions) 18b extending in the vertical direction. That is, one end of the U-shaped refrigerant pipe 18a is connected to the lower end of the outdoor heat exchanger 25 via one pipe 18b extending in the vertical direction, and the other end extends in the vertical direction. The other pipe 18b is connected to the expansion valve 26. In the present embodiment, the pair of pipes 18b extending in the vertical direction extend downward when viewed from the refrigerant jacket 37 and are connected to the lower end of the heat exchanger 25 and before being connected to the expansion valve 26. It is the site | part extended toward the downward side rather than horizontal.
 端子台46は、開位置P1(図11参照)と閉位置P2(図12参照)との間で位置を変更可能に主部材51に設けられている。そして、端子台46は、閉位置P2のときに主部材51の主面部51aとの間に冷媒ジャケット37を収納できるように主部材51との間に所定の収納空間を形成し、開位置P1のときに収納空間を解放するように構成されている。本実施形態では、端子台46が回動することにより、開位置P1と閉位置P2との間で端子台46の位置変更が行われる。そして、端子台46は、開位置P1のときに電装品モジュール35の前面側に突出し、当該電装品モジュール35を作業者等が保持するときの把持部も兼ねる。 The terminal block 46 is provided on the main member 51 so that the position can be changed between the open position P1 (see FIG. 11) and the closed position P2 (see FIG. 12). The terminal block 46 forms a predetermined storage space with the main member 51 so that the refrigerant jacket 37 can be stored between the terminal block 46 and the main surface portion 51a of the main member 51 at the closed position P2, and the open position P1. In this case, the storage space is released. In the present embodiment, when the terminal block 46 rotates, the position of the terminal block 46 is changed between the open position P1 and the closed position P2. The terminal block 46 projects to the front side of the electrical component module 35 at the open position P1, and also serves as a gripping portion when an operator or the like holds the electrical component module 35.
 この端子台46は、主部材51の主面部51aの前面において前面側基板55の下方に設けられている。そして、端子台46の前面側には、複数の端子接続部tが設けられている。 The terminal block 46 is provided below the front substrate 55 on the front surface of the main surface portion 51a of the main member 51. A plurality of terminal connection portions t are provided on the front side of the terminal block 46.
 端子台46は、詳細には、板金からなる部材を所定の形状になるように折り曲げ加工したものであり、上端部を回転中心にして下端部を回動可能に主部材51の主面部51aに保持されている。端子台46は、矩形状の前面部46aと、この前面部46aの側端部から折り曲げられた側面部46bと、前面部46aの下端部から折り曲げられた底面部46cとを有する。端子台46が閉位置P2のときに、これら前面部46aと両側面部46bと底面部46cとが主部材51の主面部51a及び伝熱板60と共に収納空間を画定する。前面から見て右側の側面部46bには、当接部146が形成されている。この当接部146は、端子台46が閉位置P2のときの背面側先端部を外側に向けて折り曲げることにより形成される。当接部146は、端子台46が閉位置P2のときに、主部材51の右側の側面部51bの被当接部153に当接する部位である。当接部146には、端子台46が閉位置P2のときに被当接部153に設けられた下側の貫通孔153aと連通するような位置に貫通孔146aが設けられている。 Specifically, the terminal block 46 is formed by bending a member made of sheet metal so as to have a predetermined shape. The terminal block 46 is formed on the main surface portion 51a of the main member 51 so that the lower end portion can be rotated around the upper end portion. Is retained. The terminal block 46 includes a rectangular front surface portion 46a, a side surface portion 46b bent from the side end portion of the front surface portion 46a, and a bottom surface portion 46c bent from the lower end portion of the front surface portion 46a. When the terminal block 46 is at the closed position P2, the front surface portion 46a, the side surface portions 46b, and the bottom surface portion 46c together with the main surface portion 51a of the main member 51 and the heat transfer plate 60 define a storage space. A contact portion 146 is formed on the right side surface portion 46b as viewed from the front. The abutting portion 146 is formed by bending the rear end portion on the back side when the terminal block 46 is at the closed position P2 outward. The contact portion 146 is a portion that contacts the contacted portion 153 of the right side surface portion 51b of the main member 51 when the terminal block 46 is at the closed position P2. The contact portion 146 is provided with a through hole 146a at a position communicating with the lower through hole 153a provided in the contacted portion 153 when the terminal block 46 is in the closed position P2.
 前面部46aには、前記のように複数の端子接続部tが配置されている。本実施形態では、前面部46aには端子接続部tが配置されているが、これに限定されず、他の電装品56が配置されてもよく、何も配置されない状態であってもよい。 A plurality of terminal connection portions t are arranged on the front surface portion 46a as described above. In the present embodiment, the terminal connection portion t is disposed on the front surface portion 46a. However, the present invention is not limited to this, and another electrical component 56 may be disposed, or nothing may be disposed.
 このように構成される端子台46は、支持部Sを介して主部材51の主面部51aに回動可能に保持される。この支持部Sは、主面部51aから前面側に突出した部位である。具体的に、支持部Sは、上下方向に延び且つ前後方向に広がる板状の部位である。この支持部Sは、主面部51aにおいて端子台46の両側面部46bに対応する位置にそれぞれ設けられ、端子台46を主面部51aに回動可能に支持する。端子台46の各側面部46bの上端部が対応する支持部Sの上端部と回動可能に連結されている。詳細には、端子台46の両側端において、左右に重なっている側面部46bと支持部Sとの上端部同士を回動軸ボルトB3が貫通することにより、端子台46と支持部Sとが回動可能に連結されている。各回動軸ボルトB3は、端子台46の両側部において水平方向の同一直線上に位置し、これにより当該回動軸ボルトB3を回転軸として端子台46を回動可能に支持部Sに連結する。このように支持部Sが端子台46を支持することにより、端子台46は、上端部を回転中心にして下端部が回動移動することにより、開位置P1と閉位置P2との間で位置の変更を行う。尚、端子台46の前面部46aが水平若しくは略水平となる位置まで端子台46が回動して前面部46aの上端が主面部51aに当接することにより、端子台46の回動が規制される。このように規制された位置が端子台46の開位置P1となる。 The terminal block 46 configured in this manner is rotatably held on the main surface portion 51a of the main member 51 via the support portion S. The support portion S is a portion protruding from the main surface portion 51a to the front surface side. Specifically, the support portion S is a plate-like portion that extends in the vertical direction and extends in the front-rear direction. This support portion S is provided at a position corresponding to both side surface portions 46b of the terminal block 46 in the main surface portion 51a, and supports the terminal block 46 on the main surface portion 51a so as to be rotatable. The upper end portions of the side surface portions 46b of the terminal block 46 are rotatably connected to the upper end portions of the corresponding support portions S. Specifically, at both side ends of the terminal block 46, the rotation axis bolt B3 passes through the upper end portions of the side surface portion 46b and the support portion S that are overlapped on the left and right, so that the terminal block 46 and the support portion S are connected. It is connected so that it can rotate. Each pivot shaft bolt B3 is positioned on the same straight line in the horizontal direction on both sides of the terminal block 46, thereby connecting the terminal block 46 to the support portion S so as to be pivotable about the pivot shaft bolt B3. . As the support portion S supports the terminal block 46 in this way, the terminal block 46 is positioned between the open position P1 and the closed position P2 by rotating the lower end portion around the upper end portion as the rotation center. Make changes. The terminal block 46 is rotated to a position where the front surface portion 46a of the terminal block 46 is horizontal or substantially horizontal, and the upper end of the front surface portion 46a contacts the main surface portion 51a, whereby the rotation of the terminal block 46 is restricted. The The position thus regulated is the open position P1 of the terminal block 46.
 ここで、本実施形態の空気調和装置10の運転動作について説明する。 Here, the operation of the air conditioner 10 of the present embodiment will be described.
 この空気調和装置10では、冷房運転を行うときは、四方切換弁28は第1状態に切り換えられる。圧縮機23で圧縮された冷媒は、油分離器24で油分が分離された後、四方切換弁28を経由して室外熱交換器25に流入する。 In this air conditioner 10, when the cooling operation is performed, the four-way switching valve 28 is switched to the first state. The refrigerant compressed by the compressor 23 is separated by the oil separator 24 and then flows into the outdoor heat exchanger 25 via the four-way switching valve 28.
 この冷媒は、室外熱交換器25において室外空気と熱交換されて凝縮し、液冷媒となる。具体的には、室外ファン31によりケーシング30の背面側板131に設けられた取り込み開口(図示省略)から室外空気が熱交換室40の内部に取り込まれ、前面側板130(詳細には第1前板130a)に設けられた吹き出し開口から、熱交換室40の内部に取り込まれた室外空気がケーシング30の外部へ吹き出される。このとき、前記取り込み開口と室外ファン31との間に室外熱交換器25が配設されているため(図5参照)、取り込まれた室外空気が室外熱交換器25を通過する。即ち、室外ファン31によって室外空気が室外熱交換器25に供給(送風)される。このようにして室外空気が室外熱交換器25を通過する際に、室外熱交換器25を介して冷媒と室外空気との熱交換が行われ、この熱交換により冷媒が凝縮して液冷媒となる。 This refrigerant exchanges heat with outdoor air in the outdoor heat exchanger 25 and condenses to become a liquid refrigerant. Specifically, outdoor air is taken into the heat exchange chamber 40 from an intake opening (not shown) provided in the back side plate 131 of the casing 30 by the outdoor fan 31, and the front side plate 130 (specifically, the first front plate). The outdoor air taken into the heat exchange chamber 40 is blown out of the casing 30 from the blowout opening provided in 130 a). At this time, since the outdoor heat exchanger 25 is disposed between the intake opening and the outdoor fan 31 (see FIG. 5), the taken outdoor air passes through the outdoor heat exchanger 25. That is, outdoor air is supplied (blowed) to the outdoor heat exchanger 25 by the outdoor fan 31. In this way, when the outdoor air passes through the outdoor heat exchanger 25, heat exchange between the refrigerant and the outdoor air is performed via the outdoor heat exchanger 25, and the refrigerant is condensed by this heat exchange to form liquid refrigerant. Become.
 このとき、熱交換室40の内部における仕切り板39に沿った空気(取り込まれた室外空気)の流れにより、仕切り板39の開口部39aから機械室41の内部の空気が熱交換室40側に吸引される。このように機械室41の内部の空気が熱交換室40側に吸引されると、機械室41の内部の圧力が低下するため、カバー部材150の開口部152から室外空気が機械室41の内部に取り込まれる。これにより、機械室41の内部においてカバー部材150の開口部152から仕切り板39の開口部39aへ向かう空気の流れが形成される(図14(a)及び図14(b)参照)。しかも、室外空気が流入する開口部152が機械室41を囲う側面の下部(カバー部材150)に設けられ、機械室41から空気が流出する開口部39aが機械室41を囲う側面の上部(仕切り板39の上部)に設けられているため、機械室41の内部の略全体に下方から上方に向かう空気の流れが形成される。この空気の流れによって電装品モジュール35だけでなく機械室41の内部に配置された他の部材も好適に冷却される。 At this time, due to the flow of air (taken outdoor air) along the partition plate 39 inside the heat exchange chamber 40, the air inside the machine chamber 41 moves from the opening 39 a of the partition plate 39 to the heat exchange chamber 40 side. Sucked. When the air inside the machine chamber 41 is sucked to the heat exchange chamber 40 side in this way, the pressure inside the machine chamber 41 decreases, so that the outdoor air flows from the opening 152 of the cover member 150 into the machine chamber 41. Is taken in. Thereby, the flow of the air which goes to the opening part 39a of the partition plate 39 from the opening part 152 of the cover member 150 is formed in the inside of the machine room 41 (refer Fig.14 (a) and FIG.14 (b)). In addition, an opening 152 through which outdoor air flows is provided in a lower portion (cover member 150) of the side surface surrounding the machine chamber 41, and an opening 39a through which air flows out from the machine chamber 41 is an upper portion (partition) of the machine chamber 41. Since it is provided on the upper part of the plate 39, an air flow from the lower side to the upper side is formed in substantially the entire interior of the machine room 41. Due to this air flow, not only the electrical component module 35 but also other members arranged inside the machine room 41 are suitably cooled.
 前記のように室外熱交換器25において室外空気と熱交換され凝縮した液冷媒は、上下方向に延びる一方の配管18bを上方に向かって流れた後、冷媒ジャケット37に固定された冷媒配管18aを流れる。このとき、圧縮機23、ファンモータの駆動によってパワー素子56aが発熱していれば、パワー素子56aの発熱によって伝熱板60が加熱されているが、冷媒配管18aを流れる冷媒によって、この加熱された伝熱板60が冷却される。 As described above, the liquid refrigerant which has been heat-exchanged with the outdoor air and condensed in the outdoor heat exchanger 25 flows upward through one pipe 18b extending in the vertical direction, and then flows through the refrigerant pipe 18a fixed to the refrigerant jacket 37. Flowing. At this time, if the power element 56a generates heat by driving the compressor 23 and the fan motor, the heat transfer plate 60 is heated by the heat generated by the power element 56a. However, the heating element 60a is heated by the refrigerant flowing through the refrigerant pipe 18a. The heat transfer plate 60 is cooled.
 冷媒配管18aを流れた冷媒は、上下方向に延びるもう一方の配管18bを下方に向かって流れた後、膨張弁26で減圧されて、室内熱交換器20に流入する。この冷媒は、室内熱交換器20において室内空気と熱交換されて気化する。 The refrigerant that has flowed through the refrigerant pipe 18a flows downward through the other pipe 18b that extends in the vertical direction, and is then decompressed by the expansion valve 26 and flows into the indoor heat exchanger 20. This refrigerant is vaporized by exchanging heat with indoor air in the indoor heat exchanger 20.
 この熱交換によって、室内空気は冷却されて室内に吹き出される。室内空気によって加熱されて蒸発した冷媒は、四方切換弁28を経由してアキュムレータ27に流入する。アキュムレータ27では、冷媒が気液分離され、ここで気液分離されたガス冷媒は圧縮機23に吸入される。冷房運転時には、この冷媒循環が継続して行われる。 】 By this heat exchange, the indoor air is cooled and blown into the room. The refrigerant heated and evaporated by the room air flows into the accumulator 27 via the four-way switching valve 28. In the accumulator 27, the refrigerant is gas-liquid separated, and the gas refrigerant separated here is sucked into the compressor 23. During the cooling operation, the refrigerant circulation is continuously performed.
 一方、暖房運転時には、四方切換弁28は第2状態に切り換えられる。圧縮機23から吐出された冷媒は、油分離器24及び四方切換弁28を経由して室内熱交換器20に導入される。室内熱交換器20において、冷媒は室内空気と熱交換されて凝縮する。この熱交換により、室内空気は加熱されて室内に吹き出される。室内空気によって冷却されて凝縮した冷媒は、膨張弁26で膨張され、その後、上下方向に延びる一方の配管18bを上方に向かって流れた後、冷媒ジャケット37に固定された冷媒配管18aを流れる。このとき、冷媒はパワー素子56aの発熱によって加熱された伝熱板60を冷却する。 On the other hand, during the heating operation, the four-way switching valve 28 is switched to the second state. The refrigerant discharged from the compressor 23 is introduced into the indoor heat exchanger 20 via the oil separator 24 and the four-way switching valve 28. In the indoor heat exchanger 20, the refrigerant is condensed by exchanging heat with room air. By this heat exchange, the room air is heated and blown into the room. The refrigerant cooled and condensed by the indoor air is expanded by the expansion valve 26, and then flows upward through one pipe 18 b extending in the vertical direction, and then flows through the refrigerant pipe 18 a fixed to the refrigerant jacket 37. At this time, the refrigerant cools the heat transfer plate 60 heated by the heat generated by the power element 56a.
 冷媒配管18aを流れた冷媒は、上下方向に延びるもう一方の配管18bを下方に向かって流れた後、室外熱交換器25に導入されて室外空気と熱交換を行う。このとき、冷房運転時と同様に、熱交換室40を流れる室外空気に基づき、機械室41の内部の略全体に下方から上方へ向う空気の流れが形成される。 The refrigerant that has flowed through the refrigerant pipe 18a flows downward in the other pipe 18b that extends in the vertical direction, and is then introduced into the outdoor heat exchanger 25 to exchange heat with outdoor air. At this time, similarly to the cooling operation, based on the outdoor air flowing through the heat exchange chamber 40, a flow of air from below to above is formed in substantially the entire interior of the machine chamber 41.
 室外熱交換器25において熱交換が行われ、蒸発した冷媒は、四方切換弁28を経由してアキュムレータ27に流入する。ここで気液分離されたガス冷媒は圧縮機23に吸入される。暖房運転時には、この冷媒循環が継続して行われる。 Heat exchange is performed in the outdoor heat exchanger 25, and the evaporated refrigerant flows into the accumulator 27 via the four-way switching valve 28. The gas refrigerant separated here is sucked into the compressor 23. This refrigerant circulation is continuously performed during the heating operation.
 次に、電装品モジュール35の室外機11への配設手順について図15及び図16も参照しつつ説明する。 Next, a procedure for arranging the electrical component module 35 in the outdoor unit 11 will be described with reference to FIGS.
 端子台46が開位置P1に回動され、この開位置P1の端子台46と把持部材53とが作業者等に把持されることにより、電装品モジュール35が保持される。このとき、当該電装品モジュール35を保持する作業者等は、把持部材53の先端側に設けられた貫通孔53aに指を挿通するようにして当該把持部材53を把持する。 The terminal block 46 is rotated to the open position P1, and the terminal block 46 and the gripping member 53 at the open position P1 are gripped by an operator or the like, whereby the electrical component module 35 is held. At this time, an operator or the like holding the electrical component module 35 grips the gripping member 53 so as to insert a finger into a through hole 53 a provided on the distal end side of the gripping member 53.
 機械室41の前面が開口している状態の室外機11の内部に、前記保持された電装品モジュール35が運び込まれる。具体的に、電装品モジュール35は、機械室41における冷媒ジャケット37の背面側上方位置まで室外機11の前面側から水平方向に移動させられる(図15参照)。そして、電装品モジュール35は、その位置から伝熱板60の位置が冷媒ジャケット37と同じ高さ位置になるまで降下させられる。この高さ位置で、電装品モジュール35は、左端部を仕切り板39に結合される一方、右端部をケーシング30の側板30bに結合されることにより、室外機11の内部に固定される。 The held electrical component module 35 is carried into the outdoor unit 11 with the front surface of the machine room 41 open. Specifically, the electrical component module 35 is moved in the horizontal direction from the front side of the outdoor unit 11 to the upper position on the back side of the refrigerant jacket 37 in the machine room 41 (see FIG. 15). Then, the electrical component module 35 is lowered from that position until the position of the heat transfer plate 60 reaches the same height as the refrigerant jacket 37. At this height position, the electrical component module 35 is fixed inside the outdoor unit 11 by coupling the left end to the partition plate 39 and coupling the right end to the side plate 30 b of the casing 30.
 詳細には、電装品モジュール35が前記所定の高さ位置まで降下したときに、電装品モジュール35の左端部においては、主部材51における主面部51aの左端部に設けられた切り起こし片51dの貫通孔51eと、仕切り板39の固定部位39bのネジ穴134とが前後に連通する一方、電装品モジュール35の右端部においては、主部材51における右側面部51bの被当接部153に設けられた貫通孔153aとケーシング30の右側板132a前端部のネジ穴133とが前後に連通する。この状態で、切り起こし片51dの貫通孔51eを介して固定部位39bのネジ穴134にネジB1が螺入される。また、被当接部153の貫通孔153aを介して右側板132aのネジ穴133にネジB2が螺入される。このとき、電装品モジュール35の右端部においては、上側の貫通孔153aを介して対応するネジ穴133にネジB2が螺入される。これにより、電装品モジュール35がケーシング30の内部に固定される。尚、下側の貫通孔153aには、この時点ではネジB2が螺入されていない。 Specifically, when the electrical component module 35 is lowered to the predetermined height position, at the left end portion of the electrical component module 35, the cut and raised piece 51d provided at the left end portion of the main surface portion 51a of the main member 51 is formed. The through hole 51e and the screw hole 134 of the fixing portion 39b of the partition plate 39 communicate with each other in the front-rear direction, and the right end portion of the electrical component module 35 is provided in the contacted portion 153 of the right side surface portion 51b of the main member 51. The through hole 153a and the screw hole 133 at the front end of the right side plate 132a of the casing 30 communicate with each other in the front-rear direction. In this state, the screw B1 is screwed into the screw hole 134 of the fixing portion 39b through the through hole 51e of the cut and raised piece 51d. Further, the screw B2 is screwed into the screw hole 133 of the right side plate 132a through the through hole 153a of the contacted portion 153. At this time, at the right end portion of the electrical component module 35, the screw B2 is screwed into the corresponding screw hole 133 via the upper through hole 153a. Thereby, the electrical component module 35 is fixed inside the casing 30. Note that the screw B2 is not screwed into the lower through-hole 153a at this time.
 このように電装品モジュール35が所定の高さ位置で固定されると、作業者等は、把持していた端子台46と把持部材53とを放す。そして、端子台46が開位置P1に保たれた状態で、作業者等によって冷媒ジャケット37が伝熱板60にネジ締結される。 Thus, when the electrical component module 35 is fixed at a predetermined height position, the operator or the like releases the terminal block 46 and the gripping member 53 that have been gripped. The refrigerant jacket 37 is screwed to the heat transfer plate 60 by an operator or the like while the terminal block 46 is kept in the open position P1.
 冷媒ジャケット37が伝熱板60に固定されると、端子台46が閉位置P2に回動され、冷媒ジャケット37が収納空間に収納される(図16参照)。言い換えると、端子台46の位置が閉位置P2となることにより、冷媒ジャケット37及び伝熱板60がその前面側を端子台46によって覆われる。 When the refrigerant jacket 37 is fixed to the heat transfer plate 60, the terminal block 46 is rotated to the closed position P2, and the refrigerant jacket 37 is stored in the storage space (see FIG. 16). In other words, when the position of the terminal block 46 becomes the closed position P <b> 2, the front surface side of the refrigerant jacket 37 and the heat transfer plate 60 is covered by the terminal block 46.
 このように端子台46が閉位置P2に回動すると、電装品モジュール35の右端部の下部において、端子台46の当接部146の貫通孔146aと、主部材51の被当接部153の下側の貫通孔153aと、ケーシング30の右側板132a前端部の下側のネジ穴133とが一列に連通した状態となり、ここにネジB2が螺入される。これにより、電装品モジュール35がより確実に固定されると共に、端子台46の位置(姿勢)も閉位置P2に確実に固定される。 When the terminal block 46 is thus rotated to the closed position P2, the through hole 146a of the contact portion 146 of the terminal block 46 and the contacted portion 153 of the main member 51 are formed at the lower portion of the right end portion of the electrical component module 35. The lower through-hole 153a and the lower screw hole 133 at the front end portion of the right side plate 132a of the casing 30 are in communication with each other, and the screw B2 is screwed therein. As a result, the electrical component module 35 is more securely fixed, and the position (posture) of the terminal block 46 is also securely fixed at the closed position P2.
 以上説明したように、本実施形態では、冷媒回路18の一対の配管(延出部)18bが冷媒ジャケット37を電装品モジュール35の伝熱板60に接合させるようにして当該電装品モジュール35の近傍に配設されても、当該電装品モジュール35に配設された電装品56が結露や霜等で濡れ難くなる。 As described above, in the present embodiment, the pair of pipes (extension portions) 18b of the refrigerant circuit 18 join the refrigerant jacket 37 to the heat transfer plate 60 of the electric component module 35, so that the electric component module 35 Even if it is disposed in the vicinity, the electrical component 56 disposed in the electrical component module 35 is hardly wetted by condensation, frost, or the like.
 具体的に、一対の配管18bを流れる冷媒の温度により冷媒ジャケット37の表面に結露や霜が生じたとしても、伝熱板60が第1基板部(パワー素子56aの実装された第1の回路基板)54aと冷媒ジャケット37との間に存在するため、冷媒ジャケット37で生じた結露等の第1基板部54aへの移動が伝熱板60により妨げられる。その結果、第1基板部54aに実装された電装品56が冷媒ジャケット37等で生じた結露等によって濡れ難くなる。また、第2基板部54b及び前面側基板55のようなパワー素子56aの実装されていない回路基板(第2の回路基板)は、冷媒ジャケット37よりも上方側に配置されているため、前記のように冷媒ジャケット37の表面に結露等が生じたとしても濡れ難い。そのため、第2の回路基板54b及び前面側基板55に実装された電装品56が冷媒ジャケット37で生じた結露等によって濡れ難くなる。また、一対の配管18bが下方側に向かって延びているため、当該一対の配管18bの表面に結露等が生じたとしても、この結露等が当該一対の配管18bを伝って下方側に流れ落ち、当該一対の配管18bで生じた結露等によって電装品モジュール35が濡れ難くなる。 Specifically, even if dew condensation or frost occurs on the surface of the refrigerant jacket 37 due to the temperature of the refrigerant flowing through the pair of pipes 18b, the heat transfer plate 60 is connected to the first substrate portion (the first circuit on which the power element 56a is mounted). Substrate) 54a and the refrigerant jacket 37, the heat transfer plate 60 prevents the dew condensation generated in the refrigerant jacket 37 from moving to the first substrate portion 54a. As a result, the electrical component 56 mounted on the first substrate portion 54a is difficult to get wet due to condensation or the like generated in the refrigerant jacket 37 or the like. Further, since the circuit board (second circuit board) on which the power element 56a such as the second board portion 54b and the front side board 55 is not mounted is disposed above the refrigerant jacket 37, the above-described circuit board is provided. Thus, even if condensation occurs on the surface of the refrigerant jacket 37, it is difficult to get wet. Therefore, the electrical components 56 mounted on the second circuit board 54 b and the front side board 55 are less likely to get wet due to condensation or the like generated in the refrigerant jacket 37. Further, since the pair of pipes 18b extend downward, even if condensation occurs on the surfaces of the pair of pipes 18b, the condensation flows down the pair of pipes 18b, The electrical component module 35 becomes difficult to get wet due to condensation or the like generated in the pair of pipes 18b.
 また、冷媒ジャケット37と伝熱板60とが熱的に接続されることで一対の配管18bにつながる冷媒配管18aとパワー素子56aとが熱的に接続される。その結果、冷媒とパワー素子56aとの熱交換が可能となり、電装品モジュール35において高熱を発するパワー素子56aが低温の冷媒により効果的に冷却される。 Further, the refrigerant jacket 37 and the heat transfer plate 60 are thermally connected, whereby the refrigerant pipe 18a connected to the pair of pipes 18b and the power element 56a are thermally connected. As a result, heat exchange between the refrigerant and the power element 56a becomes possible, and the power element 56a that generates high heat in the electrical component module 35 is effectively cooled by the low-temperature refrigerant.
 また、本実施形態では、空気調和装置10の作動時に、室外ファン31が室外熱交換器25に送風する室外空気の流れに基づき、電装品モジュール35の配置位置において下方から上方に向って室外空気が流れるようにケーシング30が構成されている。そのため、パワー素子56aの発する熱の冷媒による冷却に加え、前記下方から上方に向かって流れる室外空気によっても電装品モジュール35が冷却される。しかも、電装品モジュール35から熱を奪って温まった空気が上昇しようとする方向と、当該電装品モジュール35の配置位置における前記室外空気の流れ方向とが同じ方向であるため、電装品モジュール35の配置位置における空気の流れが乱されず、当該空気により電装品モジュール35が好適に冷却される。 Further, in the present embodiment, when the air conditioner 10 is operated, the outdoor air flows from the lower side to the upper side at the arrangement position of the electrical component module 35 based on the flow of outdoor air that the outdoor fan 31 blows to the outdoor heat exchanger 25. The casing 30 is configured to flow. Therefore, in addition to the cooling of the heat generated by the power element 56a by the refrigerant, the electrical component module 35 is also cooled by the outdoor air flowing upward from below. Moreover, since the direction in which the heated air deprives heat from the electrical component module 35 and the flow direction of the outdoor air at the position where the electrical component module 35 is disposed is the same direction, The flow of air at the arrangement position is not disturbed, and the electrical component module 35 is suitably cooled by the air.
 また、本実施形態では、電装品モジュール35が機械室41の内部における中間高さ位置に配置されている。そのため、電装品モジュール35の配置位置において、下方から上方に向かって流れる空気の流れが形成され易い。即ち、電装品モジュール35が機械室41の内部における中間の高さ位置に配置されることにより、外部から取り込まれた室外空気を電装品モジュール35の下部まで案内するスペースや電装品モジュール35を通過した(冷却した)後の室外空気を機械室41から放出する開口部39aまで案内するスペースが確保され、当該電装品モジュール35の配置位置での下方から上方へ向かう空気の流れが形成され易い。 Further, in the present embodiment, the electrical component module 35 is disposed at an intermediate height position inside the machine room 41. Therefore, at the position where the electrical component module 35 is disposed, an air flow that flows upward from below is easily formed. That is, the electrical component module 35 is disposed at an intermediate height position inside the machine room 41, so that the outdoor air taken from the outside passes through the space or the electrical component module 35 to guide the lower part of the electrical component module 35. Thus, a space for guiding the outdoor air after being cooled (cooled) to the opening 39a that discharges from the machine room 41 is secured, and an air flow from the lower side to the upper side at the position where the electrical component module 35 is arranged is easily formed.
 さらに、機械室41の内部の中間高さ位置に電装品モジュール35が配置されることにより、下方側に延びる一対の配管18bの短縮化を図りつつ、冷媒回路18に含まれる他の冷媒通路等の表面に生じる結露等で電装品モジュール35が濡れるのを抑制することができる。詳細には、機械室41の内部の下端部には、通常、圧縮機23や他の冷媒通路等の冷媒回路構成要素(冷媒回路18の構成部材)が多く配置されるため、電装品モジュール35を機械室41の内部の下端部に配置すると冷媒回路構成要素の表面に生じた結露等によって当該電装品モジュール35が濡れ易くなる。一方、電装品モジュール35が機械室41の内部の上端部に配置されると、電装品モジュール35が冷媒回路構成要素から離れるため冷媒回路構成要素に生じる結露等によって電装品モジュール35が濡れ難くなるが、下方側に向かって延びる一対の配管18bの長さ寸法が大きくなる。そこで、前記のように電装品モジュール35を機械室41の内部の中間の高さ位置に配置することにより、一対の配管18bの短縮化を図りつつ、冷媒回路構成要素に生じる結露等によって電装品モジュール35が濡れることも抑制することができる。 Furthermore, by disposing the electrical component module 35 at an intermediate height position inside the machine room 41, other refrigerant passages included in the refrigerant circuit 18, etc. while shortening the pair of pipes 18 b extending downward. It is possible to prevent the electrical component module 35 from getting wet due to dew condensation or the like generated on the surface. Specifically, since many refrigerant circuit components (components of the refrigerant circuit 18) such as the compressor 23 and other refrigerant passages are usually arranged at the lower end portion inside the machine room 41, the electrical component module 35 Is disposed at the lower end inside the machine room 41, the electrical component module 35 is easily wetted by condensation or the like generated on the surface of the refrigerant circuit component. On the other hand, when the electrical component module 35 is disposed at the upper end portion inside the machine room 41, the electrical component module 35 is separated from the refrigerant circuit component, so that the electrical component module 35 is difficult to wet due to condensation or the like generated in the refrigerant circuit component. However, the length dimension of a pair of piping 18b extended toward the downward side becomes large. Therefore, by disposing the electrical component module 35 at an intermediate height position inside the machine room 41 as described above, the pair of pipes 18b can be shortened, and the electrical component is caused by condensation or the like generated in the refrigerant circuit components. It is possible to suppress the module 35 from getting wet.
 また、本実施形態では、前面側板130の一部(第2前板130b)を取り外すことにより機械室41の前面が開口するようにケーシング30が構成される。そして、電装品モジュール35では、各回路基板54a,54b,55が互いに平行となるように配置され、これら各回路基板54a,54b,55が前面側板130に対して平行となるようにケーシング30における前面の開口の直ぐ内側に電装品モジュール35が配置される。この電装品モジュール35では、各回路基板54a,54b,55が平行に配置されることにより電装品モジュール35が略板状となる。そのため、当該電装品モジュール35の各回路基板54a,54b,55に沿った方向の幅よりも各回路基板54a,54b,55と直交する方向の厚さが小さくなっている。そのため、電装品モジュール35が前記のようにケーシング30の前面側板130に沿って各回路基板54a,54b,55が平行となるように当該前面側板130の直ぐ内側に電装品モジュール35が配置されることにより、ケーシング30の前面側板130と直交する方向(室外機11の奥行き方向)の薄型化を図ることが可能となる。即ち、電装品モジュール35が奥行き方向に沿って配置されるとケーシング30の奥行き方向の厚さを電装品モジュール35の幅よりも大きくする必要がある。しかし、略板状の電装品モジュール35が前面側板130に沿って平行に配置されると、ケーシング30の奥行き方向の厚さをより小さくすることが可能となる。 In the present embodiment, the casing 30 is configured such that the front surface of the machine room 41 is opened by removing a part of the front side plate 130 (second front plate 130b). And in the electrical component module 35, each circuit board 54a, 54b, 55 is arrange | positioned so that it may mutually become parallel, and these circuit boards 54a, 54b, 55 are in the casing 30 so that it may become parallel with respect to the front side board 130. The electrical component module 35 is disposed immediately inside the opening on the front surface. In the electrical component module 35, the circuit components 54a, 54b, and 55 are arranged in parallel, so that the electrical component module 35 has a substantially plate shape. Therefore, the thickness in the direction orthogonal to each circuit board 54a, 54b, 55 is smaller than the width in the direction along each circuit board 54a, 54b, 55 of the electrical component module 35. Therefore, the electrical component module 35 is arranged immediately inside the front side plate 130 so that the circuit boards 54a, 54b, and 55 are parallel to each other along the front side plate 130 of the casing 30 as described above. This makes it possible to reduce the thickness of the casing 30 in the direction orthogonal to the front side plate 130 (the depth direction of the outdoor unit 11). That is, when the electrical component module 35 is arranged along the depth direction, the thickness of the casing 30 in the depth direction needs to be larger than the width of the electrical component module 35. However, when the substantially plate-shaped electrical component module 35 is arranged in parallel along the front side plate 130, the thickness of the casing 30 in the depth direction can be further reduced.
 しかも、前面側板130の第2前板130bの直ぐ内側に電装品モジュール35が配置されることにより、この第2前板130bを取り外して機械室41を開口させると電装品モジュール35が最も手前側に露出する。そのため、当該電装品モジュール35に対する作業が行い易くなる。 In addition, since the electrical component module 35 is disposed immediately inside the second front plate 130b of the front side plate 130, when the second front plate 130b is removed and the machine room 41 is opened, the electrical component module 35 is located on the most front side. Exposed to. Therefore, it becomes easy to work on the electrical component module 35.
 また、本実施形態では、電装品モジュール35の下方位置に室外空気を供給するために電装品モジュール35の下方に向けて空気を通過させる開口部152と、電装品モジュール35を通過した後の空気を通過させる開口部39aとが機械室41を画定する側面に設けられる。電装品モジュール35は、機械室41の上下方向において、カバー部材150の開口部152と仕切り板39の開口部39aとの間に配置されている。そのため、機械室41の内部にカバー部材150の開口部152から仕切り板39の開口部39aに向け、且つ電装品モジュール35の配置位置において下方から上方に向けた室外空気の流れが形成され、この室外空気の流れによって電装品モジュール35全体が好適に冷却される。 In the present embodiment, in order to supply outdoor air to a position below the electrical component module 35, an opening 152 that allows air to pass downward toward the electrical component module 35, and air after passing through the electrical component module 35. And an opening 39a that allows the machine room 41 to pass therethrough. The electrical component module 35 is disposed between the opening 152 of the cover member 150 and the opening 39 a of the partition plate 39 in the vertical direction of the machine room 41. Therefore, a flow of outdoor air is formed in the machine room 41 from the opening 152 of the cover member 150 toward the opening 39a of the partition plate 39 and from the lower side to the upper side at the position where the electrical component module 35 is disposed. The entire electrical component module 35 is suitably cooled by the flow of outdoor air.
 また、本実施形態では、開口部152がケーシング30下端部のカバー部材150に形成され、開口部39aが仕切り板39の上部に設けられている。そのため、機械室41の内部の略全体に下方から上方へ向う室外空気の流れが形成され易く、この室外空気の流れにより電装品モジュール35だけでなく機械室41の内部に配置された他の冷媒構成要素の冷却も可能となる。 In the present embodiment, the opening 152 is formed in the cover member 150 at the lower end of the casing 30, and the opening 39 a is provided on the upper part of the partition plate 39. Therefore, a flow of outdoor air directed from below to above is easily formed in substantially the entire interior of the machine room 41, and other refrigerants disposed not only in the electrical component module 35 but also in the machine room 41 due to the flow of outdoor air. Components can also be cooled.
 また、本実施形態では、電装品モジュール35は、ケーシング30の内部に当該ケーシング30に対して取り外し可能に固定され、電装品モジュール35の上端部とこの上端部から下方側に所定の間隔を置いた部位とからそれぞれ突出可能な把持部(即ち、把持部材53及び端子台46)を有している。そのため、これら把持部53,46を把持することにより、電装品モジュール35の各回路基板45に実装された電装品56に触れることなく電装品モジュール35を保持し、ケーシング30の内部に取り付け又はケーシング30から取り外すことができる。しかも、電装品モジュール35を上端部とこの上端部から下方側に所定の間隔をおいた部位との上下に離れた位置で把持することができるため、当該電装品モジュール35を安定して保持することができる。その結果、電装品モジュール35の室外機11への取り付けや室外機11からの取り外しの際に作業が行い易くなる。また、作業者等が電装品56に触れることによる電装品56の損傷等を防止することができる。 In the present embodiment, the electrical component module 35 is detachably fixed to the casing 30 inside the casing 30, and a predetermined interval is provided between the upper end portion of the electrical component module 35 and the lower side from the upper end portion. Gripping portions (that is, the gripping member 53 and the terminal block 46) that can project from the respective portions. Therefore, by gripping these gripping portions 53 and 46, the electrical component module 35 is held without touching the electrical component 56 mounted on each circuit board 45 of the electrical component module 35, and is attached to the inside of the casing 30 or the casing. 30 can be removed. In addition, since the electrical component module 35 can be gripped at a position that is vertically separated from the upper end portion and a portion spaced from the upper end portion by a predetermined distance, the electrical component module 35 is stably held. be able to. As a result, it becomes easy to perform work when the electrical component module 35 is attached to or removed from the outdoor unit 11. In addition, it is possible to prevent the electrical component 56 from being damaged due to the operator or the like touching the electrical component 56.
 また、本実施形態では、把持部53,46が前面側にそれぞれ突出可能であり、下側の把持部(端子台)46が開位置P1と閉位置P2との間で位置を切換可能に構成されている。このように上下一対の把持部53,46が同一方向に突出することにより、電装品モジュール35の室外機11への着脱の際に当該電装品モジュール35が保持し易くなる。しかも、電装品モジュール35を室外機11に取り付けた後は、下側の把持部46を閉位置P2に切り換えることによって伝熱板60に接合された冷媒ジャケット37が下側の把持部46に覆われる。その結果、この部位への作業者等の接触が防止される。 Further, in the present embodiment, the gripping portions 53 and 46 can project to the front side, and the lower gripping portion (terminal block) 46 can be switched between the open position P1 and the closed position P2. Has been. Thus, when the pair of upper and lower grips 53 and 46 protrude in the same direction, the electrical component module 35 is easily held when the electrical component module 35 is attached to or detached from the outdoor unit 11. Moreover, after the electrical component module 35 is attached to the outdoor unit 11, the refrigerant jacket 37 joined to the heat transfer plate 60 is covered with the lower grip 46 by switching the lower grip 46 to the closed position P2. Is called. As a result, contact of an operator or the like with this part is prevented.
 具体的に、下側の把持部(端子台)46が開位置P1に切り換えられ、同一方向に突出している上側の把持部材53と共に把持されることにより、安定して電装品モジュール35が保持される。その結果、室外機11への当該電装品モジュール35の着脱作業が行い易くなる。一方、下側の把持部46を閉位置P2に切り換えると、伝熱板60に接合された冷媒ジャケット37が下側の把持部46によって覆われる。その結果、この部位への作業者等の接触が阻止され、当該部位が保護される。 Specifically, the lower gripping portion (terminal block) 46 is switched to the open position P1 and gripped together with the upper gripping member 53 protruding in the same direction, whereby the electrical component module 35 is stably held. The As a result, the attachment / detachment work of the electrical component module 35 to the outdoor unit 11 is facilitated. On the other hand, when the lower grip 46 is switched to the closed position P <b> 2, the refrigerant jacket 37 joined to the heat transfer plate 60 is covered by the lower grip 46. As a result, contact of the worker or the like with this part is prevented, and the part is protected.
 また、本実施形態では、上側の把持部(把持部材)53の上面にリアクター56cが設置されているため、上側の把持部53を把持することにより、電装品モジュール35に配設される電装品56のうちで重量の大きなリアクター56cが取り付けられている部位の近傍を把持することができる。これにより上端部にリアクター56cが取り付けられて重心が高くなった電装品モジュール35を安定して保持することが可能となる。しかも、上側の把持部53に貫通孔53aが設けられることにより、この貫通孔53aに指を挿通させて把持部53を把持することにより当該把持部53を確実に把持することができる。そのため、室外機11に対する電装品モジュール35の着脱作業がより行い易くなる。 In the present embodiment, since the reactor 56 c is installed on the upper surface of the upper grip portion (grip member) 53, the electrical component disposed in the electrical component module 35 by gripping the upper grip portion 53. The vicinity of the portion where the heavy reactor 56c is attached can be gripped. This makes it possible to stably hold the electrical component module 35 having the reactor 56c attached to the upper end portion and having a high center of gravity. In addition, since the through-hole 53a is provided in the upper grip 53, the grip 53 can be reliably gripped by inserting a finger into the through-hole 53a and gripping the grip 53. Therefore, the attachment / detachment work of the electrical component module 35 with respect to the outdoor unit 11 becomes easier.
 尚、本発明の空気調和装置10は、上記実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。 In addition, the air conditioning apparatus 10 of this invention is not limited to the said embodiment, Of course, a various change can be added in the range which does not deviate from the summary of this invention.
 前記実施形態では、ケーシング30の内部空間が仕切り板39によって熱交換室40と機械室41とに仕切られ、電装品モジュール35が機械室41の内部に配置されているが、このような構成に限定されない。例えば、図17に示されるように、ケーシングの内部空間が仕切り板により仕切られていないケーシング170の内部に電装品モジュール35が配置されてもよい。この場合、ケーシング170の内部の中間高さ位置に電装品モジュール35が配置されるのが好ましい。このように電装品モジュール35が中間高さ位置に配置されることにより、電装品モジュール35の配置位置において下方から上方に向かって流れる空気の流れを形成することが容易になる。さらに、電装品モジュール35をケーシング170の内部の中間高さ位置に配置することによって、下方側に延びる一対の配管18bの短縮化を図りつつ、冷媒回路18に含まれる他の冷媒通路等の表面に生じる結露等で電装品モジュール35が濡れるのを抑制することができる。 In the above embodiment, the internal space of the casing 30 is partitioned into the heat exchange chamber 40 and the machine chamber 41 by the partition plate 39, and the electrical component module 35 is arranged inside the machine chamber 41. It is not limited. For example, as illustrated in FIG. 17, the electrical component module 35 may be disposed inside a casing 170 in which the internal space of the casing is not partitioned by a partition plate. In this case, it is preferable that the electrical component module 35 is disposed at an intermediate height position inside the casing 170. By arranging the electrical component module 35 at the intermediate height position in this way, it becomes easy to form a flow of air flowing from the lower side to the upper side at the arrangement position of the electrical component module 35. Further, by disposing the electrical component module 35 at an intermediate height position inside the casing 170, while shortening the pair of pipes 18b extending downward, the surface of other refrigerant passages and the like included in the refrigerant circuit 18 It is possible to prevent the electrical component module 35 from getting wet due to dew condensation or the like generated on the surface.
 また、前記実施形態では、熱交換室40と機械室41とが左右に並ぶようにケーシング30の内部空間が仕切られているが、これに限定されない。例えば、熱交換室40と機械室41とが上下に並ぶようにケーシングの内部空間が仕切られてもよい。この場合、ケーシング30の内部において、上側に熱交換室40が形成されると共に下側に機械室41が形成されてもよく、その逆でもよい。このように熱交換室40と機械室41とが上下に並ぶ場合でも、機械室41の内部の中間高さ位置に電装品モジュール35が配置されることにより、電装品モジュール35の配置位置において下方から上方に向かって流れる空気の流れを形成することが容易になる。また、下方側に延びる一対の配管18bの短縮化を図りつつ、冷媒回路18に含まれる他の冷媒通路等の表面に生じる結露等で電装品モジュール35が濡れるのを抑制することができる。 In the above embodiment, the internal space of the casing 30 is partitioned so that the heat exchange chamber 40 and the machine room 41 are arranged side by side, but the present invention is not limited to this. For example, the internal space of the casing may be partitioned so that the heat exchange chamber 40 and the machine chamber 41 are aligned vertically. In this case, inside the casing 30, the heat exchange chamber 40 may be formed on the upper side and the machine chamber 41 may be formed on the lower side, or vice versa. As described above, even when the heat exchange chamber 40 and the machine room 41 are arranged vertically, the electrical component module 35 is arranged at the intermediate height position inside the machine room 41, so that the electrical component module 35 is positioned downward. It is easy to form a flow of air that flows upward from the top. In addition, the electrical component module 35 can be prevented from getting wet due to condensation or the like generated on the surface of another refrigerant passage or the like included in the refrigerant circuit 18 while shortening the pair of pipes 18b extending downward.
 また、前記実施形態では、機械室41に室外空気を流入させる開口部152がケーシング30の下端部の前面側及び側面側に1個ずつ設けられているが、これに限定されず、前面側又は側面側のいずれかでもよく、前面側と側面側とに複数個ずつ設けられてもよい。また、機械室41に室外空気を流入させる開口部がケーシング30の背面側に設けられてもよい。 Moreover, in the said embodiment, although the opening part 152 which flows outdoor air into the machine room 41 is provided one each in the front side and side surface side of the lower end part of the casing 30, it is not limited to this, The front side or Any one of the side surfaces may be provided, and a plurality of each may be provided on the front surface side and the side surface side. Further, an opening for allowing outdoor air to flow into the machine room 41 may be provided on the back side of the casing 30.
 また、前記実施形態では、機械室41から室外空気が流出する開口部39aが機械室41に1個設けられているが、複数個設けられてもよい。また、開口部152,39aの開口形状は、限定されない。 In the embodiment, one opening 39a through which outdoor air flows out from the machine room 41 is provided in the machine room 41, but a plurality of openings 39a may be provided. Moreover, the opening shape of the opening parts 152 and 39a is not limited.
 また、前記実施形態では、電装品モジュール35がケーシング30の内部に固定されるときに、ネジB1及びB2により固定されているが、これに限定されず、他の固定手段が用いられてもよい。また、電装品モジュール35の左端部(一端部)が仕切り板39に結合され、電装品モジュール35の右端部(他端部)が右側板132aに結合されることによって、当該電装品モジュール35がケーシング30の内部の所定の高さ位置に固定される必要もない。例えば、底板30aに立設された支持部材等に電装品モジュール35が固定されてもよい。また、天板30cから電装品モジュール35が吊下げられてもよい。 Moreover, in the said embodiment, when the electrical component module 35 is fixed to the inside of the casing 30, it fixes with the screw | threads B1 and B2, but it is not limited to this, Other fixing means may be used. . Further, the left end portion (one end portion) of the electrical component module 35 is coupled to the partition plate 39, and the right end portion (the other end portion) of the electrical component module 35 is coupled to the right side plate 132a. It is not necessary to be fixed at a predetermined height position inside the casing 30. For example, the electrical component module 35 may be fixed to a support member or the like standing on the bottom plate 30a. Moreover, the electrical component module 35 may be suspended from the top plate 30c.
 また、本実施形態では、電装品モジュール35に設けられた把持部53,46のうち、下側の把持部46が回動可能に構成され、この把持部46が冷媒ジャケット37の保護カバーを兼ねているが、これに限定されない。即ち、姿勢が固定された把持専用の部材により下側の把持部46が構成されてもよい。 In the present embodiment, of the gripping portions 53 and 46 provided in the electrical component module 35, the lower gripping portion 46 is configured to be rotatable, and this gripping portion 46 also serves as a protective cover for the refrigerant jacket 37. However, it is not limited to this. That is, the lower grip 46 may be configured by a grip-only member whose posture is fixed.
 また、前記実施形態では、電装品モジュール35の保持部材44の手前側に冷媒ジャケット37が位置するように配置されているが、冷媒ジャケット37が保持部材44の奥側に位置するように配置されてもよい。 In the embodiment, the refrigerant jacket 37 is disposed on the front side of the holding member 44 of the electrical component module 35. However, the refrigerant jacket 37 is disposed on the back side of the holding member 44. May be.
 また、前記実施形態では、室外ファン31が上下に2つ配設された構成であるが、これに限定されず、例えば室外ファン31が1つだけ配設される構成であってもよい。 In the embodiment, the two outdoor fans 31 are arranged in the upper and lower directions, but the present invention is not limited to this. For example, only one outdoor fan 31 may be arranged.
 また、前記実施形態では、保持部材44の前面側と背面側とに第2の回路基板55又は54bが1枚ずつ配置されているが、これに限定されない。例えば、保持部材44の前面側と背面側とにそれぞれ複数枚ずつ回路基板が配置されてもよく、前面側と背面側とのいずれか一方のみに回路基板が配置されてもよい。これらの場合でも、全ての第2の回路基板55,54bが冷媒ジャケット37よりも上方側に配置されていればよい。また、前記実施形態では、背面側基板54が上側に配設された第2基板部54bと下側に配設された第1基板部54aとに分かれた構成を示したが、一体であってもよい。この場合でも、冷媒ジャケット37とパワー素子56aが実装された第1の回路基板(第1基板部54a及び第2基板部54b)とが伝熱板60を挟んで配置され、伝熱板60及びこの伝熱板60を支持する部材(保持部材44)により冷媒ジャケット37等の結露が第1の回路基板54a及び54b側に流れるのが阻止されていればよい。 In the above embodiment, the second circuit board 55 or 54b is disposed on the front side and the back side of the holding member 44 one by one, but the present invention is not limited to this. For example, a plurality of circuit boards may be arranged on each of the front side and the back side of the holding member 44, or the circuit boards may be arranged only on either the front side or the back side. Even in these cases, it is only necessary that all the second circuit boards 55 and 54b are disposed above the coolant jacket 37. In the above embodiment, the rear substrate 54 is divided into the second substrate portion 54b disposed on the upper side and the first substrate portion 54a disposed on the lower side. Also good. Even in this case, the refrigerant jacket 37 and the first circuit board (the first board part 54a and the second board part 54b) on which the power element 56a is mounted are arranged with the heat transfer plate 60 interposed therebetween, and the heat transfer plate 60 and The member (holding member 44) that supports the heat transfer plate 60 only needs to prevent the condensation of the refrigerant jacket 37 and the like from flowing toward the first circuit boards 54a and 54b.
 また、前記実施形態の空気調和装置10では、冷房運転と暖房運転との双方が可能であるが、これに限られるものではなく、例えば、冷房運転のみが可能な空気調和装置であってもよく、あるいは暖房運転のみが可能な空気調和装置であってもよい。 Moreover, in the air conditioning apparatus 10 of the said embodiment, although both a cooling operation and a heating operation are possible, it is not restricted to this, For example, the air conditioning apparatus which can perform only a cooling operation may be sufficient Or the air conditioning apparatus in which only heating operation is possible may be sufficient.
 以上説明した本実施形態をまとめると以下の通りである。 The embodiment described above is summarized as follows.
 すなわち、本実施形態の空気調和装置は、冷媒が循環する冷媒回路と、ケーシングと、前記ケーシングの内部に配置され、パワー素子が実装された第1の回路基板とパワー素子以外の電装品が実装された第2の回路基板と前記パワー素子に接合される被冷却部とを有する電装品モジュールと、前記冷媒回路の冷媒と熱的に接続されて前記被冷却部を冷却する冷却部と、を備え、前記電装品モジュールでは、前記第1の回路基板が前記被冷却部を挟んで前記冷却部と反対側に配置されると共に、前記第2の回路基板が前記冷却部よりも上方側に配置されていることを特徴とする。 That is, the air conditioner of the present embodiment is mounted with a refrigerant circuit in which refrigerant circulates, a casing, a first circuit board that is disposed inside the casing and on which a power element is mounted, and electrical components other than the power element. An electrical component module having a second circuit board formed and a cooled part joined to the power element, and a cooling part that is thermally connected to the refrigerant of the refrigerant circuit and cools the cooled part. In the electrical component module, the first circuit board is disposed on the opposite side of the cooling part with the cooled part interposed therebetween, and the second circuit board is disposed on the upper side of the cooling part. It is characterized by being.
 この空気調和装置によれば、冷却部が電装品モジュールの被冷却部と接合するようにして当該電装品モジュールの近傍に配設されても、当該電装品モジュールに配設された電装品が結露や霜等で濡れ難くなる。具体的に、冷媒回路を流れる冷媒の温度により冷却部の表面に結露や霜が生じたとしても、被冷却部が第1の回路基板と冷却部との間に存在するため、冷却部で生じた結露等の第1の回路基板への移動が被冷却部により妨げられる。その結果、第1の回路基板に実装された電装品が濡れ難くなる。また、第2の回路基板は、冷却部よりも上方側に配置されているため、前記のように冷却部の表面に結露等が生じても濡れ難い。そのため、第2の回路基板に実装された電装品が結露等によって濡れ難くなる。 According to this air conditioner, even if the cooling unit is disposed in the vicinity of the electrical component module so as to be joined to the cooled part of the electrical component module, the electrical component disposed in the electrical component module is condensed. It becomes difficult to get wet with frost. Specifically, even if dew condensation or frost is generated on the surface of the cooling unit due to the temperature of the refrigerant flowing in the refrigerant circuit, the cooling target exists between the first circuit board and the cooling unit, and thus occurs in the cooling unit. Movement to the first circuit board such as dew condensation is hindered by the cooled portion. As a result, the electrical component mounted on the first circuit board is difficult to get wet. In addition, since the second circuit board is disposed above the cooling unit, it is difficult to get wet even if condensation occurs on the surface of the cooling unit as described above. Therefore, the electrical component mounted on the second circuit board is difficult to get wet due to condensation or the like.
 また、冷却部と被冷却部とが熱的に接続されることにより冷媒回路とパワー素子とが熱的に接続され、冷媒回路を流れる冷媒とパワー素子との熱交換が可能となり、電装品モジュールにおいて高熱を発するパワー素子が低温の冷媒により効果的に冷却される。 Moreover, the refrigerant circuit and the power element are thermally connected by thermally connecting the cooling part and the cooled part, and heat exchange between the refrigerant flowing through the refrigerant circuit and the power element becomes possible. The power element that generates high heat is effectively cooled by the low-temperature refrigerant.
 また、前記空気調和装置において、前記冷媒回路には熱交換器が含まれ、前記ケーシングの内部には、前記熱交換器と、前記熱交換器に送風する送風手段とが配置され、前記ケーシングは、前記送風手段により前記熱交換器に送風される空気の流れに基づき前記電装品モジュールの配置位置において下方から上方に向って空気が流れてもよい。 Further, in the air conditioner, the refrigerant circuit includes a heat exchanger, and the heat exchanger and a blowing unit for blowing air to the heat exchanger are disposed inside the casing, The air may flow from below to above in the arrangement position of the electrical component module based on the flow of air blown to the heat exchanger by the blowing means.
 かかる構成によれば、パワー素子の発する熱の冷媒による冷却に加え、送風手段が熱交換器に送風する空気の流れに基づく電装品モジュールの配置位置における下から上に向って流れる空気により電装品モジュールが冷却される。しかも、電装品モジュールから熱を奪って温まった空気が上昇しようとする方向と、当該電装品モジュールの配置位置における空気の流れる方向とが同じ方向であるため、電装品モジュールの配置位置における空気の流れが乱されず、当該空気により電装品モジュールが好適に冷却される。 According to such a configuration, in addition to the cooling of the heat generated by the power element by the refrigerant, the electrical component is caused by the air flowing upward from the bottom in the arrangement position of the electrical component module based on the flow of air blown to the heat exchanger by the blower means. The module is cooled. In addition, since the direction in which the heated air is deprived of heat from the electrical component module and the direction in which air flows at the electrical component module placement position is the same direction, the air flow at the electrical component module placement location is the same. The flow is not disturbed, and the electrical component module is suitably cooled by the air.
 また、前記空気調和装置において、前記電装品モジュールは、前記ケーシングの内部における中間の高さ位置に配置されてもよい。 In the air conditioner, the electrical component module may be disposed at an intermediate height position inside the casing.
 かかる構成によれば、電装品モジュールの配置位置において、下方から上方に向かって流れる空気の流れが形成され易くなる。即ち、ケーシングの内部における中間の高さ位置に電装品モジュールが配置されることにより、外部から取り込まれた空気を電装品モジュールの下部まで案内するスペースや電装品モジュールを通過した(冷却した)後の空気を放出開口まで案内するスペースの確保が容易になるため、当該電装品モジュールの配置位置での下方から上方へ向かう空気の流れが形成し易くなる。 According to such a configuration, an air flow that flows upward from below is easily formed at the position where the electrical component module is disposed. That is, after the electrical component module is arranged at an intermediate height position inside the casing, after passing through the space or electrical component module that guides the air taken in from the outside to the lower part of the electrical component module (cooled) Since it is easy to secure a space for guiding the air to the discharge opening, it is easy to form a flow of air from the lower side to the upper side at the position where the electrical component module is disposed.
 また、前記空気調和装置において、前記ケーシングは、当該ケーシング内の空間を前記熱交換器及び前記送風手段が収容される熱交換室と前記電装品モジュールが収容される機械室とに区切る仕切り板を有し、前記電装品モジュールは、前記機械室内における中間高さ位置に配置されてもよい。 In the air conditioner, the casing may include a partition plate that divides a space in the casing into a heat exchange chamber in which the heat exchanger and the air blowing unit are accommodated and a machine room in which the electrical component module is accommodated. And the electrical component module may be disposed at an intermediate height position in the machine room.
 このように電装品モジュールが機械室に配置された場合でも、機械室内における中間高さ位置に電装品モジュールが配置されることにより、当該機械室において電装品モジュールの上方と下方とに空気を案内するスペースが確保し易くなる。その結果、電装品モジュールの配置位置において下方から上方に向かって流れる空気の流れを形成することが容易になる。 Even when the electrical component module is arranged in the machine room in this way, the electrical component module is arranged at an intermediate height position in the machine room, so that air is guided to the upper and lower sides of the electrical component module in the machine room. It becomes easy to secure the space to do. As a result, it becomes easy to form a flow of air that flows upward from below at the position where the electrical component module is disposed.
 また、前記空気調和装置において、前記ケーシングの特定の側面には、前記特定の側面の一部を取り外すことにより開口するサービス用開口が設けられ、前記電装品モジュールは、前記第1の回路基板と前記第2の回路基板とが平行となるように配置され、これら各回路基板は、前記特定の側面に対して平行となる姿勢で前記サービス用開口の直ぐ内側に配置されてもよい。 Further, in the air conditioner, a specific side surface of the casing is provided with a service opening that is opened by removing a part of the specific side surface, and the electrical component module is connected to the first circuit board. The circuit boards may be arranged in parallel with the second circuit board, and each of the circuit boards may be arranged immediately inside the service opening in a posture parallel to the specific side surface.
 かかる構成によれば、各回路基板が平行に配置されることにより電装品モジュールが略板状となり、当該電装品モジュールの各回路基板に沿った方向の幅よりも、各回路基板と直交する方向の厚さが小さくなる。ケーシングの特定の側面に沿って電装品モジュールの各回路基板が平行となるように当該特定の側面の直ぐ内側に電装品モジュールが配置されることにより、ケーシングの前記特定の側面と直交する方向における薄型化を図ることが可能となる。具体的に、電装品モジュールが前記特定の側面と直交する方向の面に沿って平行に配置されると、ケーシングの当該方向における厚さを前記電装品モジュールの幅よりも大きくする必要があるが、電装品モジュールが前記特定の側面に沿って平行に配置されることにより、ケーシングの前記特定の側面と直交する方向における厚さをより小さくすることが可能となる。 According to this configuration, the electrical component modules are substantially plate-shaped by arranging each circuit board in parallel, and the direction perpendicular to each circuit board is greater than the width in the direction along each circuit board of the electrical component module. The thickness becomes smaller. In the direction orthogonal to the specific side surface of the casing, the electrical component module is arranged immediately inside the specific side surface so that each circuit board of the electrical component module is parallel to the specific side surface of the casing. It is possible to reduce the thickness. Specifically, when the electrical component module is arranged in parallel along a plane perpendicular to the specific side surface, the thickness of the casing in the direction needs to be larger than the width of the electrical component module. By disposing the electrical component module in parallel along the specific side surface, it is possible to further reduce the thickness of the casing in the direction orthogonal to the specific side surface.
 また、電装品モジュールが特定の側面におけるサービス用開口に対応する位置の直ぐ内側に配置されることにより、この特定の側面の一部を取り外してサービス用開口を開口させることで電装品モジュールが最も手前側で露出する。その結果、当該電装品モジュールに対する作業が行い易くなる。 In addition, since the electrical component module is disposed immediately inside the position corresponding to the service opening on the specific side surface, the electrical component module is most removed by removing a part of the specific side surface and opening the service opening. Exposed on the front side. As a result, it becomes easier to work on the electrical component module.
 また、前記空気調和装置において、前記ケーシングは、少なくとも前記電装品モジュールが収容される機械室を有し、前記機械室を画定する側面には、前記電装品モジュールの下方に向けて空気を通過させる第1の開口部と、前記電装品モジュールを通過した後の空気を通過させる第2の開口部とが設けられ、前記電装品モジュールは、上下方向において、前記第1の開口部と前記第2の開口部との間に配置されてもよい。 In the air conditioner, the casing includes at least a machine room in which the electrical component module is accommodated, and air is passed through a side surface defining the machine room toward the lower side of the electrical component module. A first opening and a second opening that allows air after passing through the electrical component module to pass therethrough are provided, and the electrical component module has the first opening and the second in the vertical direction. It may be arranged between the openings.
 かかる構成によれば、機械室内に第1の開口部から第2の開口部に向けて、且つ電装品モジュールの配置位置において下方から上方に向けた空気の流れが形成される。この空気の流れによって電装品モジュール全体が好適に冷却される。 According to this configuration, an air flow is formed in the machine room from the first opening toward the second opening and from below to above at the position where the electrical component module is disposed. The entire electrical component module is suitably cooled by this air flow.
 また、前記空気調和装置において、前記ケーシングは、前記熱交換器及び前記送風手段が収容される熱交換室と前記機械室とが左右に並ぶようにケーシング内の空間を区切る仕切り板を有し、前記第1の開口部は、前記機械室を画定する側面の下部に設けられ、前記第2の開口部は、前記仕切り板の上部に設けられてもよい。 Further, in the air conditioner, the casing includes a partition plate that divides a space in the casing so that the heat exchange chamber and the machine room in which the heat exchanger and the air blowing unit are accommodated are arranged side by side. The first opening may be provided at a lower part of a side surface defining the machine room, and the second opening may be provided at an upper part of the partition plate.
 かかる構成によれば、機械室内の略全体に下方から上方へ向う空気の流れが形成される。この空気の流れにより電装品モジュールだけでなく機械室内に配置された他の部材の冷却も可能となる。 According to such a configuration, an air flow from the lower side to the upper side is formed in substantially the entire machine room. This air flow can cool not only the electrical component module but also other members arranged in the machine room.
 具体的に、送風手段により形成される熱交換室内の空気の流れによって第2の開口部を介して機械室内の空気が熱交換室内に吸引される。この機械室から熱交換室への空気の吸引によって第1の開口部を介して外部の空気が機械室内に吸引される。これにより、機械室内に第1の開口部から第2の開口部へ向かう空気の流れが形成される。しかも、第1の開口部が前記機械室を囲う側面の下部に設けられ、第2の開口部が仕切り板の上部に設けられているため、機械室内の略全体に下方から上方に向かう空気の流れが形成される。この空気の流れによって電装品モジュールだけでなく機械室内に配置された他の部材も好適に冷却される。 Specifically, the air in the machine chamber is sucked into the heat exchange chamber through the second opening by the flow of air in the heat exchange chamber formed by the blowing means. By sucking air from the machine room to the heat exchange room, external air is sucked into the machine room through the first opening. As a result, an air flow from the first opening to the second opening is formed in the machine room. In addition, since the first opening is provided in the lower part of the side surface surrounding the machine room and the second opening is provided in the upper part of the partition plate, the air flowing upward from below to substantially the entire machine room. A flow is formed. This air flow suitably cools not only the electrical component module but also other members disposed in the machine room.
 また、前記空気調和装置において、前記電装品モジュールは、前記ケーシングの内部に当該ケーシングに対して取り外し可能に配置され、前記電装品モジュールの上端部とこの上端部から下方側に所定の間隔を置いた部位とからそれぞれ突出する把持部を有してもよい。 Further, in the air conditioner, the electrical component module is detachably disposed inside the casing with respect to the casing, and a predetermined interval is provided below the upper end portion of the electrical component module and the upper end portion thereof. You may have the holding part which each protrudes from the part which was.
 かかる構成によれば、把持部を把持することにより、第1及び第2の回路基板に実装された電装品に触れることなく電装品モジュールを保持し、ケーシングの内部に取り付け又はケーシングの内部から取り外しすることができる。しかも、電装品モジュールの上端部とこの上端部から下方側に所定の間隔をおいた部位との上下に離れた位置で電装品モジュールを把持することができる。そのため、当該電装品モジュールを安定して保持することができる。その結果、電装品モジュールの室外機への取り付けや室外機からの取り外しの際に作業が行い易くなると共に作業者等が電装品に触れることによる電装品の損傷等を防止することができる。 According to such a configuration, by gripping the grip portion, the electrical component module is held without touching the electrical components mounted on the first and second circuit boards, and is attached to or detached from the casing. can do. Moreover, the electrical component module can be gripped at a position that is vertically separated from the upper end portion of the electrical component module and a portion spaced from the upper end portion by a predetermined distance. Therefore, the electrical component module can be stably held. As a result, it becomes easy to perform work when the electrical component module is attached to or removed from the outdoor unit, and damage to the electrical component due to the operator touching the electrical component can be prevented.
 また、前記空気調和装置において、前記把持部は、前記被冷却部から前記冷却部に向かってそれぞれ突出し、下側の前記把持部は、前記被冷却部から前記冷却部に向かって突出した位置と前記被冷却部に接合された前記冷却部を収容可能な空間を覆う位置との間で位置を切換可能に構成されてもよい。 Further, in the air conditioner, the gripping portion protrudes from the cooled portion toward the cooling portion, and the lower gripping portion protrudes from the cooled portion toward the cooling portion. The position may be switchable between a position that covers a space that can accommodate the cooling part joined to the cooled part.
 かかる構成によれば、上下一対の把持部が電装品モジュールから同一方向に突出しているため、電装品モジュールの室外機への着脱の際に当該電装品モジュールを容易に保持することができる。しかも、電装品モジュールを室外機に取り付けた後は、下側の把持部によって被冷却部に接合された冷却部が覆われるため、この部位への作業者等の接触が防止される。 According to this configuration, since the pair of upper and lower grips protrude in the same direction from the electrical component module, the electrical component module can be easily held when the electrical component module is attached to or detached from the outdoor unit. In addition, after the electrical component module is attached to the outdoor unit, the cooling part joined to the cooled part is covered by the lower gripping part, so that the contact of the operator or the like with this part is prevented.
 具体的に、下側の把持部を電装品モジュールから突出した位置に切り換え、下側の把持部と同一方向に突出する上側の把持部と共に把持することにより、安定して電装品モジュールを保持することができる。そのため、室外機への当該電装品モジュールの着脱作業が行い易くなる。一方、冷却部を収容可能な空間を覆う位置に下側の把持部を切り換えると、被冷却部に接合された冷却部が下側の把持部によって覆われるため、この部位への作業者等の接触が阻止され、当該部位が保護される。 Specifically, the lower gripping portion is switched to a position protruding from the electrical component module, and the electrical component module is stably held by gripping with the upper gripping portion protruding in the same direction as the lower gripping portion. be able to. Therefore, it becomes easy to attach and detach the electrical component module to / from the outdoor unit. On the other hand, when the lower gripping part is switched to a position covering the space that can accommodate the cooling part, the cooling part joined to the cooled part is covered by the lower gripping part. Contact is blocked and the site is protected.
 また、前記空気調和装置において、上側の前記把持部は、水平若しくは略水平の板部材により構成され、前記板部材の上面にはリアクターが設置され、前記板部材におけるリアクターの設置位置よりも前記突出方向側の部位には孔部が設けられてもよい。 Further, in the air conditioner, the upper gripping part is constituted by a horizontal or substantially horizontal plate member, and a reactor is installed on the upper surface of the plate member, and the protrusion protrudes from the installation position of the reactor in the plate member. A hole may be provided in the direction side portion.
 かかる構成によれば電装品モジュールに配設される電装品のうちで重量の大きなリアクターが取り付けられている部位の近傍を把持することができる。これにより上端部にリアクターが取り付けられて重心が高くなった電装品モジュールを安定して保持することが可能となる。しかも、把持部に孔部が設けられ、この孔部に指を挿通させて把持部を把持することにより、当該把持部を確実に把持することができる。その結果、室外機に対して電装品モジュールを着脱する作業がより行い易くなる。 According to such a configuration, it is possible to grip the vicinity of the portion where the heavy reactor is attached among the electrical components arranged in the electrical component module. This makes it possible to stably hold the electrical component module having a reactor attached to the upper end portion and having a high center of gravity. Moreover, a hole is provided in the grip portion, and the grip portion can be reliably gripped by inserting a finger into the hole portion and gripping the grip portion. As a result, the operation of attaching / detaching the electrical component module to / from the outdoor unit becomes easier.
 また、前記空気調和装置において、前記冷媒回路は、前記冷却部から下方に向かって延びる延出部を有してもよい。 Further, in the air conditioner, the refrigerant circuit may have an extending part extending downward from the cooling part.
 かかる構成によれば、延出部が冷却部から下方側に向かって延びているため、当該延出部の表面に結露等が生じても、この結露等が冷却部に向かわずに当該延出部を伝って下方側に流れ落ち、これにより当該延出部で生じた結露等によって電装品モジュールが濡れ難くなる。 According to such a configuration, since the extension portion extends downward from the cooling portion, even if condensation or the like occurs on the surface of the extension portion, the condensation or the like does not go to the cooling portion. The electrical component module is less likely to get wet due to dew condensation or the like generated at the extension portion.
 以上のように、本発明に係る空気調和装置は、冷媒が循環して蒸気圧縮式の冷凍サイクルを行う空気調和装置に有用であり、電装品モジュールがケーシングの内部の中間の高さ位置に配置され、その近傍に冷媒通路が配設されても、当該電装品モジュールに実装された電装品を濡れ難くするのに適している。 As described above, the air conditioner according to the present invention is useful for an air conditioner in which a refrigerant circulates and performs a vapor compression refrigeration cycle, and the electrical component module is disposed at an intermediate height position inside the casing. Even if the refrigerant passage is disposed in the vicinity thereof, the electrical component mounted on the electrical component module is suitable for making it difficult to get wet.
10   空気調和装置
11   室外機
18   冷媒回路
18b  一対の配管(延出部)
25   室外熱交換器
30   ケーシング
31   室外ファン(送風手段)
35   電装品モジュール
37   冷媒ジャケット(冷却部)
39   仕切り板
39a  開口部(第2の開口部)
40   熱交換室
41   機械室
46   端子台(下側の把持部)
53   把持部材(上側の把持部)
54a  第1基板部(第1の回路基板)
54b  第2基板部(第2の回路基板)
55   前面側基板(第2の回路基板)
56   電装品
56a  パワー素子
60   伝熱板(被冷却部)
130  前面側板
130a 第1前板
130b 第2前板
132a 右側板
150  カバー部材
152  開口部(第1の開口部)
P1   開位置
P2   閉位置
DESCRIPTION OF SYMBOLS 10 Air conditioning apparatus 11 Outdoor unit 18 Refrigerant circuit 18b A pair of piping (extension part)
25 Outdoor heat exchanger 30 Casing 31 Outdoor fan (air blowing means)
35 Electrical component module 37 Refrigerant jacket (cooling part)
39 Partition plate 39a Opening (second opening)
40 Heat Exchange Room 41 Machine Room 46 Terminal Block (Lower Holding Part)
53 Gripping member (upper gripping part)
54a 1st board | substrate part (1st circuit board)
54b Second board part (second circuit board)
55 Front side board (second circuit board)
56 Electrical component 56a Power element 60 Heat transfer plate (cooled part)
130 Front side plate 130a First front plate 130b Second front plate 132a Right side plate 150 Cover member 152 Opening (first opening)
P1 Open position P2 Closed position

Claims (11)

  1.  冷媒が循環する冷媒回路と、
     ケーシングと、
     前記ケーシングの内部に配置され、パワー素子が実装された第1の回路基板とパワー素子以外の電装品が実装された第2の回路基板と前記パワー素子に接合される被冷却部とを有する電装品モジュールと、
     前記冷媒回路の冷媒と熱的に接続されて前記被冷却部を冷却する冷却部と、を備え、
     前記電装品モジュールでは、前記第1の回路基板が前記被冷却部を挟んで前記冷却部と反対側に配置されると共に、前記第2の回路基板が前記冷却部よりも上方側に配置されていることを特徴とする空気調和装置。
    A refrigerant circuit through which the refrigerant circulates;
    A casing,
    An electrical component that is disposed inside the casing and includes a first circuit board on which a power element is mounted, a second circuit board on which an electrical component other than the power element is mounted, and a portion to be cooled that is joined to the power element. Product module,
    A cooling part that is thermally connected to the refrigerant of the refrigerant circuit and cools the cooled part,
    In the electrical component module, the first circuit board is disposed on the opposite side of the cooling part with the cooled part interposed therebetween, and the second circuit board is disposed on the upper side of the cooling part. An air conditioner characterized by comprising:
  2.  前記冷媒回路には熱交換器が含まれ、
     前記ケーシングの内部には、前記熱交換器と、前記熱交換器に送風する送風手段とが配置され、
     前記ケーシングは、前記送風手段により前記熱交換器に送風される空気の流れに基づき前記電装品モジュールの配置位置において下方から上方に向って空気が流れるように構成されることを特徴とする請求項1に記載の空気調和装置。
    The refrigerant circuit includes a heat exchanger,
    Inside the casing, the heat exchanger and a blowing means for blowing air to the heat exchanger are arranged,
    The said casing is comprised so that air may flow toward upper direction from the downward direction in the arrangement position of the said electrical component module based on the flow of the air ventilated to the said heat exchanger by the said ventilation means. The air conditioning apparatus according to 1.
  3.  前記電装品モジュールは、前記ケーシングの内部における中間の高さ位置に配置されることを特徴とする請求項2に記載の空気調和装置。 The air conditioner according to claim 2, wherein the electrical component module is disposed at an intermediate height position in the casing.
  4.  前記ケーシングは、当該ケーシング内の空間を前記熱交換器及び前記送風手段が収容される熱交換室と前記電装品モジュールが収容される機械室とに区切る仕切り板を有し、
     前記電装品モジュールは、前記機械室内における中間高さ位置に配置されることを特徴とする請求項2に記載の空気調和装置。
    The casing includes a partition plate that divides a space in the casing into a heat exchange chamber in which the heat exchanger and the air blowing unit are accommodated and a machine room in which the electrical component module is accommodated.
    The air conditioner according to claim 2, wherein the electrical component module is disposed at an intermediate height position in the machine room.
  5.  前記ケーシングの特定の側面には、前記特定の側面の一部を取り外すことにより開口するサービス用開口が設けられ、
     前記電装品モジュールは、前記第1の回路基板と前記第2の回路基板とが平行となるように配置され、これら各回路基板が前記特定の側面に対して平行となる姿勢で前記サービス用開口の直ぐ内側に配置されることを特徴とする請求項2乃至4の何れか1項に記載の空気調和装置。
    A specific side surface of the casing is provided with a service opening that is opened by removing a part of the specific side surface,
    The electrical component module is arranged such that the first circuit board and the second circuit board are parallel to each other, and the service openings are arranged in a posture in which each of the circuit boards is parallel to the specific side surface. The air conditioner according to any one of claims 2 to 4, wherein the air conditioner is disposed immediately inside.
  6.  前記ケーシングは、少なくとも前記電装品モジュールが収容される機械室を有し、
     前記機械室を画定する側面には、前記電装品モジュールの下方に向けて空気を通過させる第1の開口部と、前記電装品モジュールを通過した後の空気を通過させる第2の開口部とが設けられ、
     前記電装品モジュールは、上下方向において、前記第1の開口部と前記第2の開口部との間に配置されていることを特徴とする請求項2乃至5の何れか1項に記載の空気調和装置。
    The casing has a machine room in which at least the electrical component module is accommodated,
    The side surface that defines the machine room has a first opening that allows air to pass downward toward the electrical component module and a second opening that allows air after passing through the electrical component module to pass therethrough. Provided,
    6. The air according to claim 2, wherein the electrical component module is disposed between the first opening and the second opening in the vertical direction. Harmony device.
  7.  前記ケーシングは、前記熱交換器及び前記送風手段が収容される熱交換室と前記機械室とが左右に並ぶようにケーシング内の空間を区切る仕切り板を有し、
     前記第1の開口部は、前記機械室を画定する側面の下部に設けられ、
     前記第2の開口部は、前記仕切り板の上部に設けられることを特徴とする請求項6に記載の空気調和装置。
    The casing has a partition plate that divides a space in the casing so that a heat exchange chamber and the machine room in which the heat exchanger and the air blowing unit are accommodated are arranged side by side.
    The first opening is provided at a lower portion of a side surface defining the machine room,
    The air conditioner according to claim 6, wherein the second opening is provided in an upper part of the partition plate.
  8.  前記電装品モジュールは、前記ケーシングの内部に当該ケーシングに対して取り外し可能に配置され、前記電装品モジュールの上端部とこの上端部から下方側に所定の間隔を置いた部位とからそれぞれ突出する把持部を有することを特徴とする請求項1乃至7の何れか1項に記載の空気調和装置。 The electrical component module is disposed in the casing so as to be removable from the casing, and the electrical component module protrudes from an upper end portion of the electrical component module and a portion spaced downward from the upper end portion. The air conditioner according to any one of claims 1 to 7, further comprising a section.
  9.  前記把持部は、前記被冷却部から前記冷却部に向かってそれぞれ突出し、
     下側の前記把持部は、前記被冷却部から前記冷却部に向かって突出した位置と前記被冷却部に接合された前記冷却部を収容可能な空間を覆う位置との間で位置を切換可能に構成されることを特徴とする請求項8に記載の空気調和機。
    The gripping part protrudes from the cooled part toward the cooling part,
    The lower gripping portion can be switched between a position protruding from the cooled portion toward the cooling portion and a position covering the space capable of accommodating the cooling portion joined to the cooled portion. It is comprised by these, The air conditioner of Claim 8 characterized by the above-mentioned.
  10.  上側の前記把持部は、水平若しくは略水平の板部材により構成され、
     前記板部材の上面にはリアクターが設置され、
     前記板部材におけるリアクターの設置位置よりも前記突出方向側の部位には孔部が設けられることを特徴とする請求項8又は9に記載の空気調和装置。
    The upper gripping part is constituted by a horizontal or substantially horizontal plate member,
    A reactor is installed on the upper surface of the plate member,
    The air conditioner according to claim 8 or 9, wherein a hole is provided in a portion of the plate member that is closer to the protruding direction than a position where the reactor is installed.
  11.  前記冷媒回路は、前記冷却部から下方に向かって延びる延出部を有することを特徴とする請求項1乃至10の何れか1項に記載の空気調和装置。 The air conditioner according to any one of claims 1 to 10, wherein the refrigerant circuit has an extending part extending downward from the cooling part.
PCT/JP2010/051363 2009-02-02 2010-02-01 Air conditioning device WO2010087481A1 (en)

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