Invention title: Electrical component module
Technical field
[0001]
　The present invention relates to an electrical component module attached to a machine room behind a service panel in front of an outdoor unit of an air conditioner.
Background technology
[0002]
　As shown in FIG. 12, a general air conditioner includes an outdoor unit 10 installed outdoors and an indoor unit 20 installed indoors. The outdoor unit 10 and the indoor unit 20 are connected by a refrigerant pipe 30 to form a vapor compression refrigeration cycle.
[0003]
　The outdoor unit 10 is supplied with lubricating oil from an outdoor heat exchanger 11 that exchanges heat between outdoor air and a refrigerant, a blower fan 11F, a compressor 12 that compresses the refrigerant, and a mixed fluid of the lubricating oil and the refrigerant discharged from the compressor 12. An oil separator 13 for separation, an expansion valve 14 for expanding the inflowing refrigerant to reduce the pressure to a predetermined pressure, an accumulator 15 for separating the inflowing refrigerant into gas and liquid, a four-way valve 16 for switching between heating operation and cooling operation, and the like are provided. There is. Further, the indoor unit 20 is provided with an indoor heat exchanger 21 for exchanging heat between indoor air and a refrigerant, a blower fan 21F, and the like. The refrigerant pipe 30 connects the outdoor heat exchanger 11, the compressor 12, the oil separator 13, the expansion valve 14, the accumulator 15, the four-way valve 16, and the indoor heat exchanger 21. The refrigerant pipe 30 includes a liquid-side refrigerant pipe 30L and a gas-side refrigerant pipe 30G.
[0004]
　As shown in FIG. 13, the outdoor unit 10 is divided into a heat exchanger room 10A and a machine room 10B in the left-right direction by a partition plate 171, and the heat exchanger room 10A has the above-mentioned outdoor heat. The exchanger 11 and the blower fan 11F are arranged. The above-mentioned compressor 12, oil separator 13, expansion valve 14, accumulator 15, four-way valve 16 and the like are housed in the machine room 10B, and these are service panels (not shown) on the front surface of the housing 17 as shown in FIG. By removing the, it becomes visible from the outside.
[0005]
　Further, in the machine room 10B, an electrical component module 40 is arranged at a substantially intermediate position in the vertical direction thereof. The electrical component module 40 includes a control circuit that controls the overall operation of the air conditioner, a setting circuit for making various settings of the air conditioner, a display circuit that displays the state of the air conditioner, and an AC supplied from the outside. It is a module equipped with a converter circuit that converts power into DC power and outputs it, an inverter circuit that converts DC power output from the converter circuit into AC power and outputs it, and other circuits. It is equipped with multiple electronic components to realize the circuit. The printed circuit board 41 is composed of one printed circuit board 41 so as to secure a piping space on the back side of the machine room 10B.
[0006]
　FIG. 14 shows a front view of the electrical component module 40. The printed circuit board 41 is mounted in the machine room 10B in an upright posture. The printed circuit board 41 is divided into a light electric region 41A and a high electric region 41B in the vertical direction.
[0007]
　In the light electric region 41A, electronic components such as a microcomputer that constitutes a part of the above-mentioned control circuit, electronic components for operating the switch 41A1 that constitutes the setting circuit, the low power connector 41A2 for inserting and removing the plug, and the display circuit The electronic components of the light electric system such as the LED 41A3 constituting the above are mounted. Further, in the high power region 41B, a plurality of electronic components of the high power system for performing power conversion constituting the rest of the control circuit described above, for example, a power device 41B1 such as an IC of a converter circuit and an IC of an inverter circuit, for smoothing. Parts such as a large-capacity electrolytic capacitor 41B2 and a high-power connector 41B3 are mounted.
[0008]
　A cooler 50 for cooling the heat generated by the power device 41B1 is further arranged in the high electric power region 41B. The cooler 50 includes a heat sink (not shown) having a shape that is attached to the liquid side refrigerant pipe 30L of the refrigerant pipe 30. The heat sink is arranged so that the front side of the printed circuit board 41, which thermally couples the heat generated by the power device 41B1 so as to be transferred, faces the service panel side (not shown). The refrigerant condensed by the outdoor heat exchanger 11 flows through the liquid side refrigerant pipe 30L during the cooling operation, and the refrigerant condensed by the indoor heat exchanger 21 and depressurized by the expansion valve 14 flows during the heating operation. The heat sink of the cooler 50 is cooled, and the temperature of the power device 41B1 is kept below a predetermined value. The air conditioner described above is described in Patent Document 1.
Prior art literature
Patent documents
[0009]
Patent Document 1: Japanese Patent No. 5472364
Outline of the invention
Problems to be solved by the invention
[0010]
　By the way, in the outdoor unit 10 described above, the weak electric electronic components are arranged in the light electric region 41A1 and the strong electric electronic components are arranged in the high electric region 41A2, that is, the light electric electronic components are arranged in the vertical direction of the same front surface of the printed circuit board 41. Since the high-power electronic components are mounted side by side, there is a problem that the vertical size of the printed circuit board 41 becomes large. Therefore, such a printed circuit board 41 cannot be applied to the outdoor unit 10 having a small space above and below the machine room 10B. Therefore, it is conceivable to divide the printed circuit board 41 into two and mount the two printed circuit boards separately on the front surface and the back surface of the fixing plate. However, if the vertical size of each printed circuit board is different, printing is performed. The advantage of dividing the substrate 41 into two is impaired. Further, in the outdoor unit 10 described above, since the cooler 50 is arranged on the front side of the electrical component module 40, a special device is required to attach / detach the electrical component module 40.
[0011]
　An object of the present invention is to provide an electrical component module that can be effectively applied to an outdoor unit having a housing having a small vertical space, can be easily attached to and detached from the machine room, and can be reduced in vertical size. Is to provide.
Means to solve problems
[0012]
　In order to achieve the above object, the present invention controls an air conditioner in an electrical component module mounted in a machine room on the back side of a service panel arranged in front of an outdoor unit of an air conditioner having a refrigerant pipe. On the front, the main board on which the electronic components that make up part of the control circuit to be performed are mounted on the front, and the power board on which the electronic components including multiple power devices that make up the rest of the control circuit are mounted on the front. A fixed plate on which the main board and the power board are mounted is provided so that the back surface of the main board faces the back surface and the back surface of the power board faces the back surface. In addition, it is an electrical component module installed in the machine room, and the outdoor unit is equipped with a cooler attached to a part of the refrigerant pipe so as to face the service panel, and multiple power devices are vertically mounted on the front of the power board. Arranged and thermally coupled to the cooler, the power board is set with the vertical size of the power board corresponding to the vertical size of the vertical arrangement of multiple power devices, and the main board is the top and bottom of the main board. The directional size is set according to the vertical size of the power board.
Effect of the invention
[0013]
　According to the present invention, the vertical size of the electrical component module can be significantly reduced as compared with the case where one printed circuit board is used, and even for an outdoor unit having a housing having a small space above and below the machine room. It can be applied effectively. In addition, the plurality of vertically arranged power devices mounted on the power board are thermally coupled to the cooler, so that they are effectively cooled. Further, since the cooler faces the service panel, the cooler does not interfere with the attachment / detachment of the electrical component module from the front of the machine room.
A brief description of the drawing
[0014]
FIG. 1 is a perspective view showing an outdoor unit of an embodiment.
FIG. 2 is a perspective view showing an outdoor unit with the service panel removed.
FIG. 3 is a perspective view showing an outdoor unit in a state where the electrical component module is removed from the machine room.
FIG. 4 is an exploded perspective view of an electrical component module and a cooler.
FIG. 5 is an explanatory view of mounting the upper frame and the lower frame to the partition plate.
FIG. 6 is a vertical cross-sectional view of an electrical component module.
FIG. 7 is a cross-sectional view taken along the line AA in FIG.
FIG. 8 is a plan view of the outdoor unit with the top panel removed.
FIG. 9 is a right side view with the right side panel of the outdoor unit removed.
FIG. 10 is a front view of the main board.
FIG. 11 is a front view of the power board.
FIG. 12 is a circuit diagram of a refrigerant circuit of an air conditioner.
FIG. 13 is a front view of a conventional outdoor unit with the service panel removed.
FIG. 14 is a front view showing a conventional electrical component module.
Mode for carrying out the invention
[0015]
　1 to 3, 8 and 9 show the outdoor unit 100 according to the embodiment of the present invention. The housing 110 of the outdoor unit 100 includes a front panel 111, a service panel 112 on the right side of the front panel 111, a right side panel 113, a left side panel 114, a top panel 115, a back panel 116, and a bottom panel 117. There is. A stand 118 is attached to the bottom panel 117. The internal space of the housing 110 is partitioned in the left-right direction by a partition plate 119 so that the back side of the front panel 111 becomes the heat exchanger room 110A and the back side of the service panel 112 becomes the machine room 110B. The partition plate 119 constitutes a part of the wall surface of the machine room 110B. The outdoor heat exchanger 11 and the blower fan 11F described above are arranged in the heat exchanger room 110A. Further, the machine room 110B houses the above-mentioned refrigerant pipe 30, compressor 12, expansion valve 14, accumulator 15, sub-accumulator 15A, four-way valve 16, and the like. The internal space of the machine room 110B can be visually recognized from the front side of the outdoor unit 100 by removing the service panel 112.
[0016]
　As shown in FIGS. 4 to 9, the electrical component module 200 has a fixing plate 210 arranged in the machine chamber 110B so that the front surface faces the back surface of the service panel 112, and a long shape to which the upper portion of the fixing plate 210 is attached. An upper frame 220, a long lower frame 230 to which the lower part of the fixing plate 210 is attached, a mounting bracket 240 for attaching the upper frame 220 to the partition plate 119, and a mounting bracket 250 for attaching the lower frame 230 to the partition plate 119. , The main board 260 on which the electronic components and other electronic components that form a part of the control circuit are mounted, the electronic components and other electronic components that form the rest of the control circuit, and the plurality of power devices 274 described later. It includes a power board 270 to be mounted.
[0017]
　In this way, the printed circuit board of the electrical component module 200 is divided into a main board 260 and a power board 270, and the back surface 260b of the main board 260 faces the front surface 211a of the fixing plate 210 described later. It is mounted on the fixing plate 210. The power board 270 is mounted on the fixing plate 210 so that the back surface 270b described later faces the back surface 211b of the fixing plate 210 described later.
[0018]
　The cooler 300 is attached to the upper frame 220 and the lower frame 230 so as to straddle the upper frame 220 and the lower frame 230 with the U-shaped bent portion 31 of the refrigerant pipe 30L attached as described later.
[0019]
　The fixing plate 210 has a main body 211 on which the main board 260 is mounted on the front 211a and the power board 270 is mounted on the back 211b, and a reinforcing plate 210 bent 90 degrees from the upper end of the main body 211 toward the back 211b. It includes an upper horizontal piece 212 and an upper vertical piece 213 for mounting that is bent 90 degrees upward from the rear end of the upper horizontal piece 212. Further, the fixing plate 210 has a reinforcing lower horizontal piece 214 bent 90 degrees from the lower end of the main body 211 toward the front surface 211a, and a lower vertical piece 214 bent downward 90 degrees from the front end of the lower horizontal piece 214. It includes a piece 215 and. Mounting portions 215a projecting downward are formed at both ends of the lower vertical piece 215.
[0020]
　The upper frame 220 includes a vertical piece 221 screwed to the upper vertical piece 213 of the fixing plate 210, a reinforcing upper horizontal piece 222 bent 90 degrees rearward from the upper end of the vertical piece 221 and a vertical piece 211. A mounting piece 223 bent at 45 degrees from the left end to the front is provided. The upper end of the cooler 300 is attached to the end 224 of the upper frame 220.
[0021]
　The lower frame 230 includes a lower vertical piece 231 screwed to the lower vertical piece 215 of the fixing plate 210, an upper horizontal piece 232 bent 90 degrees rearward from the upper end of the lower vertical piece 231 and an upper horizontal piece 232. It includes a reinforcing upper vertical piece 233 bent upward by 90 degrees from the back end, and a mounting piece 234 bent 45 degrees from the left end of the lower vertical piece 231 toward the front. A terminal plate 400 is attached to the front side of the lower vertical piece 231. The lower end of the cooler 300 is attached to the end 235 of the lower frame 230.
[0022]
　The cooler 300 includes an aluminum heat sink 310 that is thermally coupled to a plurality of power devices 274 mounted on the front surface 270a of the power substrate 270 and described later, and two heat sinks 310 having a semicircular cross section. The U-shaped bent portion 31 of the liquid-side refrigerant pipe 30L fitted in the groove 311 and the sheet metal cover 320 for fixing the U-shaped bent portion 31 to the heat sink 310 are provided. In addition to the groove 311 the heat sink 310 has a thick plate portion 312 to which the power device 274 is pressed and thermally coupled, and cover mounting portions 313 and 314 formed on both sides of the thick plate portion 312. The cover 320 has a central pressing portion 321 for pressing the U-shaped bent portion 31 of the liquid side refrigerant pipe 30L, a hook portion 322 bent from one end of the pressing portion 321 and a hook portion 322 from the other end of the pressing portion 321. A mounting portion 323 that is bent so as to face the surface is provided.
[0023]
　As described above, electronic components and other electronic components that form a part of the control circuit are mounted on the front surface 260a of the main board 260. That is, as shown in FIG. 10, on the front surface 260a of the main board 260, there is an AC input current detection / temperature detection circuit 261, an actuator drive circuit 262 for driving the expansion valve 14 and the four-way valve 16, and an LED lamp 263a as a display. , Display setting circuit 263 including dip switch 263b and button switch 263c as an operation unit, main control IC264 such as a microcomputer, EMC (ElectroMagnetic) for measures against external noise and spontaneous noise including common mode choke coil 254a and capacitor 265b. (Compatibillity) A filter circuit 265, a switching power supply circuit 266 having a switching transformer 266a and a switching IC 266b, an inrush current control circuit 267, a plurality of connectors 268 arranged in a peripheral portion, and the like are mounted. 260b is the back surface of the main board 260. The main substrate 260 is formed in a quadrangle shape and has an upper end 260c, a lower end 260d, a left end 260e, and a right end 260f. The main board 260 is mounted on the front surface 211a of the fixing plate 210 so that the back surface 260b faces the front surface 211a of the main body portion 211 of the fixing plate 210.
[0024]
　On the front surface 270a of the power board 270, electronic components including a plurality of power devices 274 described later that form the remaining part of the control circuit as described above are mounted. That is, as shown in FIG. 11, a diode bridge circuit 271a for rectification, two IGBT (Insulated Gate Bipolar Transistor) elements 271b in which a MOSFET is incorporated in the gate portion of the bipolar transistor to reduce the operating resistance, and 2 for high-speed operation. Two FRD (Fast Recovery Diode) elements 271c, two PFC (Power Factor Correction) coils 271d for improving the power factor, two aluminum electrolytic capacitors 271e for high power smoothing, and the like are mounted. These diode bridge circuits 271a, IGBT element 271b, FRD element 271c, PFC coil 271d, electrolytic capacitor 271e and the like constitute a converter circuit 271 that converts and outputs AC power supplied from the outside. Furthermore, an IPM (Intelligent Power Module) element 272 and an inverter control IC 273 that constitute an inverter circuit that converts DC power supplied from the converter circuit 271 into AC power and outputs it by incorporating a drive circuit and self-protection function are also installed. There is. Reference numeral 270b is the back surface of the power substrate 270. The power substrate 270 is formed in a quadrangle shape and has an upper end 270c, a lower end 270d, a left end 270e, and a right end 270f. The diode bridge circuit 271a, the IGBT element 271b, the FRD element 271c, the IPM element 272, and the like are power devices 274 that generate a large amount of heat, and are mounted in a vertical arrangement in the vicinity of the left end 270e so that they can be easily cooled by the cooler 300. ing. The power substrate 270 is mounted on the back surface 211b so that the back surface 270b faces the back surface 211b of the main body 211 of the fixing plate 210. The cooler 300 faces and abuts a portion of the plurality of power devices 274.
[0025]
　The vertical size of the power board 270 is set according to the size of the vertical arrangement of the plurality of power devices 274, and the PFC coil 271d, the electrolytic capacitor 271e, the inverter control IC 273, and the like are included in the size. Be placed. In this way, the vertical size of the power substrate 270 is set to a slightly larger size corresponding to the vertical size of the vertical arrangement of the plurality of power devices 274. The main board 260 is set to the same vertical size corresponding to the vertical size of the power board 270, and the AC input current detection / temperature detection circuit 261 and the actuator drive circuit 262 are displayed so as to be within the size. The setting circuit 263, the main control IC 264, the EMC filter circuit 265, the switching power supply circuit 266, the inrush current control circuit 267, the connector 268, and the like are mounted. The IGBT element 271b may be replaced with a MOSFET.
[0026]
　The electronic components mounted on the main board 260 and the power board 270 described above are merely examples, and can be changed without departing from the spirit of the present invention. Further, the electronic components mounted on the main board 260 are low-voltage electronic components that operate at a low voltage, and the electronic components mounted on the power board 270 are high-voltage electronic components that operate at a high voltage. High-power electronic components generate more heat and generate more noise than light-power electronic components.
[0027]
　By the way, in order to arrange the electrical component module 200 in the machine room 110B of the outdoor unit 100, first, a mounting bracket 240 having a slope 241 and a mounting bracket 250 having a slope 251 are previously mounted on the partition plate 119. Then, as shown in FIG. 5, the mounting piece 223 of the upper frame 220 is screwed to the slope 241 of the mounting bracket 240, and the mounting piece 234 of the lower frame 230 is screwed to the slope 251 of the mounting bracket 250. As a result, the upper frame 220 and the lower frame 230 are attached to the partition plate 119 in a cantilevered state in a lateral direction.
[0028]
　Next, as shown in FIG. 6, the heat sink 310 of the cooler 300 is placed so as to straddle between the end 224 of the vertical piece 221 of the upper frame 220 and the end 235 of the upper vertical piece 233 of the lower frame 230. Attach with screws B1 and B2. Further, as shown in FIG. 7, after the U-shaped bent portion 31 of the refrigerant pipe 30L is pressed against the groove 311 of the heat sink 310, the hook portion 322 of the cover 320 is engaged with one cover mounting portion 313 of the heat sink 310. Then, the pressing portion 323 is pressed against the other cover mounting portion 314 of the heat sink 310, and the pressing portion 323 is fixed to the cover mounting portion 314 with screws B3 and B4. This work is performed with the back panel 116 of the outdoor unit 100 removed. As described above, the cooler 300 is provided so as to straddle between the end portion 224 of the upper frame 220 and the end portion 235 of the lower frame 230, and so that the thick plate portion 312 of the heat sink 310 faces the service panel 112. It is attached.
[0029]
　Further, the main board 260 is mounted on the front 211a of the main body 211 of the fixing plate 210, and the power board 260 is mounted on the back 211b. Then, the fixing plate 210 on which the main board 260 and the power board 270 are mounted is fitted with the upper vertical piece 213 on the vertical piece 221 of the upper frame 220 and the lower vertical piece 215 on the lower vertical piece 231 of the lower frame 230. As shown, it is attached by screws B5 and B6. At this time, the mounting piece 223 of the upper frame 220 is attached to the partition plate 119 by the mounting bracket 240, and the mounting piece 234 of the lower frame 230 is attached to the partition plate 119 by the mounting bracket 250, respectively, and the other end 224 of the upper frame 220 and the lower frame 230. Since the other end 235 of the above is fixed to the U-shaped bent portion 31 of the liquid side refrigerant pipe 30L by the cooler 300, the fixing plate 210 is firmly fixed. Further, the plurality of power devices 274 of the power substrate 270 are pressed against the thick plate portion 312 of the heat sink 310 of the cooler 300 so as to be thermally coupled there. Therefore, by starting the operation of the air conditioner, the heat generated in the power device 274 is cooled by the cooler 300. If a heat-dissipating grease having high thermal conductivity is applied to the thick plate portion 312 of the heat sink 310, the thermal coupling is further improved. After the electrical component module 200 is attached to the machine room 110B as described above, a plug to which the required wiring is connected is connected to the connector 263 of the main board 260 of the electrical component module 200, and the terminal plate 400 is required. Another wire is connected.
[0030]
　As described above, in this embodiment, the main board 260 and the power board 270 are mounted on the fixing plate 210 so as to be back-to-back with the fixing plate 210 attached to the machine room 110B. Therefore, the vertical size of the main board 260 and the power board 270 is significantly smaller than the vertical size of the printed circuit board when the main board 260 and the power board 270 are arranged vertically to form one sheet. It can be effectively applied to an outdoor unit having a housing having a small space above and below.
[0031]
　At this time, the vertical size of the power board 270 is set to a size corresponding to the vertical arrangement size of the plurality of power devices 274, and the main board 260 is also set to be the same as or substantially the same as the vertical size, and then a plurality. By allocating and mounting electronic components other than the power device 274 on the main board 260 and the power board 270, the size of the main board 260 and the power board 270 in the vertical direction can be reduced.
[0032]
　Further, the lower vertical piece 231 of the lower frame 230 projects toward the front side of the fixing plate 210 by the upper horizontal piece 232, and the terminal plate 400 is attached to the front surface 231a of the lower vertical piece 231. Therefore, the terminal plate 400 protrudes forward to facilitate access to the terminal plate 400, and a wide space SP can be secured on the back surface 231b of the lower vertical piece 231. Therefore, the lower frame 230 is arranged in the space SP. It will not interfere with such things.
[0033]
　Further, the plurality of power devices 274 mounted on the power board 270 are thermally coupled to the cooler 300 on the back surface 211b side of the fixing plate 210, but are only pressed against the cooler 300. Therefore, by loosening the screws B5 and B6, the fixing plate 210, the main board 260, and the power board 270 can be integrated and removed from the front of the machine room 110B without being disturbed by the cooler 300. Maintenance of the board 260 and the power board 270 becomes easy.
[0034]
　Further, on the main board 260, a display setting circuit 261 including an LED lamp 261a, a DIP switch 261b, a button switch 261c, and the like and a plurality of connectors 263 are mounted on the front surface 260a. Therefore, by simply removing the service panel 112 from the outdoor unit 100, the operation content of the air conditioner can be confirmed by the display content of the LED lamp 261a, or the setting content can be changed by operating the DIP switch 261b or the button switch 261c. It becomes easy to switch the circuit connection by inserting and removing the plug to and from the connector 263.
Description of the sign
[0035]
　30L: Liquid side refrigerant piping, 31: U-shaped bent part
　100: Outdoor unit, 110: Housing, 110A: Heat exchanger room, 110B: Machine room, 111: Front panel, 112: Service panel, 113: Right side Panel, 114: Left side panel, 115: Top panel, 116: Back panel, 117: Bottom panel, 118: Stand, 119: Partition plate
　200: Electrical component module
　210: Fixed plate, 211: Main body, 211a: Front , 211b: Back surface, 212: Upper horizontal piece, 213: Upper
　vertical piece, 214: Lower horizontal piece, 215: Lower vertical piece 220: Upper frame, 221: Vertical piece, 222: Horizontal piece, 223: Mounting piece
　230: Lower Frame, 231: Lower vertical piece, 232: Upper horizontal piece, 233: Upper vertical piece, 234: Mounting piece
　240: Mounting bracket
　250: Mounting bracket
　260: Main board, 260a: Front 260b: Back side
　270: Power board, 270a : Front, 270b: Back, 274: Power device
　300: Cooler, 310: Heat sink, 320: Cover
　400: Terminal board
The scope of the claims
[Claim 1]

　An electronic component that constitutes a part of a control circuit that controls the air conditioner 　in an electrical component module attached to the machine room behind the service panel arranged in front of the outdoor unit of the air conditioner having a refrigerant pipe. Is mounted on the front surface, a power board on which electronic components including a plurality of power devices constituting the remaining part of the control circuit are mounted on the front surface, and a back surface of the main board facing the front surface on the back surface. The main board and the fixing plate on which the power board is mounted are provided so that the back surfaces of the power board face each other, and the fixing plate is provided so that the front surface of the main board faces the direction of the service panel. An electrical component module attached to the machine room, the
　outdoor unit includes a cooler attached to a part of the refrigerant pipe so as to face the service panel, and the plurality of power devices are the power substrate. The
　power board is vertically arranged in front of the power board and thermally coupled to the cooler, and the vertical size of the power board is set corresponding to the vertical size of the vertical arrangement of the plurality of power devices.
　The main board is an electrical component module in which the vertical size of the main board is set corresponding to the vertical size of the power board.
[Claim 2]
　In the electrical component module according to claim 1, a
　long-shaped upper frame for attaching the upper part of the fixing plate to the machine room and a long-shaped lower frame for attaching the lower part of the fixing plate to the machine room. An
　electrical component module , wherein the cooler is attached so as to straddle the upper frame and the lower frame.
[Claim 3]
　In the electrical component module according to claim 2,
　a partition plate for partitioning a heat exchanger room and the machine room is attached to the outdoor unit, and
　one end of the upper frame and one end of the lower frame are the partition plates. An electrical component module that is attached to the cooler and the other end of the upper frame and the other end of the lower frame are attached to the cooler.
[Claim 4]
　In the electrical component module according to claim 3, the
　plurality of power devices are located between the other end of the upper frame and the other end of the lower frame.
[Claim 5]
　In the electrical component module according to any one of claims 1 to 4, the
　cooler includes a heat sink that is thermally coupled to the plurality of power devices and a cover that attaches the heat sink to a part of the refrigerant pipe. And, which has an electrical component module.