Outdoor unit of air conditioner

Abstract

The present invention provides an outdoor unit of an air conditioner, which can prevent moisture, such as rainwater, from reaching electrical components and can more reliably maintain the soundness of the electrical components. The outdoor unit (1) includes: two bell mouths (12), the two bell mouths (12) are substantially of the same shape, and are relatively connected in a state where any one bell mouth (12) is rotated 180 degrees relative to any other bell mouth (12) around the rotation center line of the blower (6), so as to divide two ventilation paths (42) in which the two blowers (6) are arranged and a non-ventilation space (58) divided by the outer sides of the two ventilation paths (42) and the inner surface of the shell (3); and an electrical component (59), which is arranged in the non-ventilation space (58). Each bell mouth (12) has a water conduit (61) arranged directly below the joint (41) of the two bell mouths (12).

Description

Technical Field

[0001] The present invention relates to an outdoor unit of an air conditioner. Background Art

[0002] The outdoor unit of the conventional air conditioner includes a power transformer installed in a casing. The power transformer is arranged in an air duct covered by a box-shaped cover plate made of a metal plate and through which air that has undergone heat exchange in a heat exchanger flows.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2016-065704 Summary of the invention

[0006] Technical problem to be solved by the invention

[0007] The outdoor unit is installed outdoors. Therefore, the outdoor unit is exposed to wind and rain. Moisture such as rainwater easily enters the air duct in the outdoor unit through which the air that has undergone heat exchange in the heat exchanger circulates.

[0008] Therefore, the waterproofness of the cover plate covering the electric components such as the power transformer arranged in the air duct in the outdoor unit must be reliably ensured. If the waterproofness of the cover plate is impaired, the soundness of the electric components in the cover plate may be impaired.

[0009] Therefore, an object of the present invention is to provide an outdoor unit of an air conditioner that can prevent moisture, such as rainwater, from reaching electrical components and can more reliably maintain the integrity of the electrical components.

[0010] Technical solutions to technical problems

[0011] The outdoor unit of the air conditioner according to the embodiment of the present invention for solving the above-mentioned problem comprises: a housing; two blowers arranged in the horizontal direction of the housing and sucking air from the inner side of the housing and blowing it out to the upper side of the housing; two bell mouths corresponding to the two blowers; a compressor housed in the housing; and an electrical component related to the drive of the compressor or the drive of the two blowers. The two bell mouths are substantially of the same shape, and are connected in a state where any one of the bell mouths is rotated 180 degrees relative to any other bell mouth around the rotation center line of the blower and are opposite to each other, so as to divide the two ventilation paths where the two blowers are arranged and the non-ventilation space divided by the outer sides of the two ventilation paths and the inner surface of the housing. The electrical component is arranged in the non-ventilation space. Each of the bell mouths has a water conduit arranged directly below the joint of the two bell mouths.

[0012] Preferably, each of the bell mouths of the outdoor unit of the air conditioner involved in the embodiment of the present invention has: a cover portion extending from the top surface of each of the bell mouths without a step difference and covering the water pipe directly above the bell mouth of the connection object; and a recessed portion on the top surface of the bell mouth that accommodates the cover portion of the bell mouth of the connection object without a step difference.

[0013] It is preferable that the electrical components of the outdoor unit of the air conditioner according to the embodiment of the present invention be arranged directly below the water conduit.

[0014] Effects of the Invention

[0015] According to an embodiment of the present invention, an outdoor unit of an air conditioner can be provided, which can prevent moisture, such as rainwater, from reaching electrical components and can more reliably maintain the integrity of the electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a perspective view of an outdoor unit of an air conditioner according to an embodiment of the present invention.

[0017] Figure 2 It is a perspective exploded view of a frame, a motor base, and a blower of an outdoor unit of an air conditioner according to an embodiment of the present invention.

[0018] Figure 3 It is a perspective view of a bell mouth of an outdoor unit according to an embodiment of the present invention.

[0019] Figure 4 It is a partial cross-sectional view between the bell mouth and the frame of the outdoor unit according to the embodiment of the present invention.

[0020] Figure 5 It is a partial cross-sectional view of a bell mouth of an outdoor unit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 5 Embodiments of the outdoor unit of the air conditioner according to the present invention will be described. In addition, in the plurality of drawings, the same reference numerals are given to the same or corresponding structures.

[0022] Figure 1 It is a perspective view of an outdoor unit of an air conditioner according to an embodiment of the present invention.

[0023] like Figure 1As shown, the air conditioner involved in this embodiment includes an outdoor unit 1 and an indoor unit (omitted in the figure). The indoor unit is installed indoors in a building. The outdoor unit 1 is installed outdoors in a building. The outdoor unit 1 is installed on a substantially horizontal foundation, that is, a setting surface. The indoor unit is embedded in the ceiling of the indoor unit, or is suspended from the ceiling or a beam.

[0024] In addition, the air conditioner is provided with a refrigeration cycle (not shown). The refrigeration cycle includes a heat exchanger 4 on the heat source side, a compressor 2, a heat exchanger on the utilization side (not shown), an expansion valve (not shown), and a refrigerant pipe (not shown) for circulating the refrigerant in these devices. The refrigeration cycle may include a four-way valve (not shown) for switching between the cooling operation and the heating operation of the air conditioner.

[0025] In addition, the air conditioner may be a cooling and heating simultaneous operation type. The cooling and heating simultaneous operation type air conditioner includes a plurality of indoor units, at least one outdoor unit, and a plurality of connecting pipes for circulating refrigerant between the plurality of indoor units and at least one outdoor unit. The plurality of connecting pipes include: a high-pressure gas pipe for circulating the high-pressure gas refrigerant discharged from the compressor 2; a liquid pipe for circulating the liquid refrigerant condensed by the heat exchanger 4 on the heat source side; and a low-pressure gas pipe for circulating the low-pressure gas refrigerant after heat exchange by the heat exchanger on the utilization side to the compressor 2.

[0026] The outdoor unit 1 contains a heat exchanger 4 on the heat source side of the refrigeration cycle, a compressor 2, a four-way valve, a first electrical component box 9, and a second electrical component box 59. The indoor unit contains a heat exchanger on the utilization side of the refrigeration cycle. The expansion valve can be contained in the indoor unit or in the outdoor unit. In addition, the expansion valve can also be provided in both the indoor unit and the outdoor unit.

[0027] The outdoor unit and the indoor unit are connected via a connecting pipe (not shown). The connecting pipe is a part of the refrigerant pipe. The air conditioner circulates the refrigerant between the heat exchanger 4 on the outdoor unit 1 side and the heat exchanger on the indoor unit side to condition the indoor air.

[0028] Figure 2 It is a perspective exploded view of a frame, a motor base, and a blower of an outdoor unit of an air conditioner according to an embodiment of the present invention.

[0029] Apart from Figure 1 In addition, such as Figure 2 As shown, the outdoor unit 1 of the air conditioner involved in this embodiment includes: a rectangular housing 3 with a width dimension smaller than a height dimension and a depth dimension smaller than a width dimension; a motor base 5 provided on the housing 3; and a blower 6 supported by the motor base 5.

[0030] Inside the housing 3, there are divided a machine room 7 for accommodating the heat exchanger 4 and the compressor 2, and a blower room 8 for accommodating the blower 6. The machine room 7 is arranged at the lower part of the housing 3. The blower room 8 is arranged above the machine room 7. A bell mouth 12 having a blow-out port 11 is provided on the upper surface of the blower room 8.

[0031] The air blower 8 is provided with two air blowers 6, namely a left air blower 6L and a right air blower 6R. A left bell mouth 12L having a left blow outlet 11L is provided just above the left air blower 6L. A right bell mouth 12R having a right blow outlet 11R is provided just above the right air blower 6R. That is, the outdoor unit 1 includes a plurality of air blowers 6, and the same number of blow outlets 11 and bell mouths 12 as the number of the air blowers 6.

[0032] The housing 3 includes a frame 15 and an outer plate 16 covering the front surface of the frame 15 .

[0033] The frame 15 is an assembly of a plurality of components that are sheet metal products of steel plates. Each component is fastened by screws and welded together. The frame 15 includes a base frame 21 disposed on the bottom surface of the housing 3, four columns 22 extending upward from the four corners of the base frame 21, and four cross beams 23 respectively installed between adjacent columns 22.

[0034] The base frame 21 includes a plurality of beam materials 25 extending parallel to the installation surface and combined in a crisscross shape. The plurality of beam materials 25 include a front beam material 25F along the front surface of the housing 3, a rear beam material 25R along the back surface of the housing 3, and a plurality of longitudinal beam materials 25C spanned between the front beam material 25F and the rear beam material 25R. The front beam material 25F extends parallel to the rear beam material 25F. The left end of the front beam material 25F corresponds to the left front corner of the bottom of the housing 3, and the right end of the front beam material 25F corresponds to the right front corner of the bottom of the housing 3. The left end of the rear beam material 25R corresponds to the left rear corner of the bottom of the housing 3, and the right end of the rear beam material 25R corresponds to the right rear corner of the bottom of the housing 3.

[0035] The four columns 22 extend parallel to each other. The four columns 22 have substantially the same length. The length of the column 22 is equivalent to the height of the housing 3.

[0036] The four cross beams 23 are installed at substantially the same position in the height direction of the housing 3 in the middle of the length of the column 22. In other words, when the housing 3 is grounded to the installation surface, the four cross beams 23 extend substantially parallel to the installation surface. The four cross beams 23 are the boundaries between the machine room 7 and the blower room 8. The internal space of the housing 3 below the four cross beams 23 is the machine room 7, and the internal space of the housing 3 above the four cross beams 23 is the blower room 8.

[0037] The four cross beams 23 include a front cross beam 23F mounted on the left front column 22 and the right front column 22, and a rear cross beam 23R mounted on the left rear column 22 and the right rear column 22. The front cross beam 23F and the rear cross beam 23R extend in parallel. In addition to the four cross beams 23, the housing 3 also includes a middle cross beam 23C mounted on the front cross beam 23F and the rear cross beam 23R.

[0038] The outer plate 16 covers the front side, that is, the front side, of the machine room 7 of the housing 3 and is appropriately divided in the same plane. The outer plate 16 includes a plurality of components that are sheet metal processed products of steel plates. Each component is screwed to the frame 15. The back, left side, and right side of the housing 3 have openings. The heat exchanger 4 is exposed to the openings.

[0039] The heat exchanger 4 accommodated in the outdoor unit 1 includes a left heat exchanger 4L and a right heat exchanger (not shown). The heat exchangers 4 are respectively arranged along the back, left and right sides of the housing 3 surrounded by the pillars 22. Each heat exchanger 4 is a plate-shaped heat exchanger formed in a U-shape (shape shown in the figure) in a top view of the housing 3, with the opening of the U-shape facing the front side of the housing 3, i.e., the outer plate 16. Therefore, the machine room 7 of the housing 3 has a structure in which external air is directly supplied to the heat exchanger 4 exposed to the openings on the back, left and right sides, and the external air is discharged to the blower room 8.

[0040] The front cross beam 23F is an integrally formed product of a steel plate having an L-shaped cross section. The front cross beam 23F is horizontally mounted between the left front column 22 and the right front column 22. The left end of the front cross beam 23F is screwed or welded to the left front column 22. The right end of the front cross beam 23F is screwed or welded to the right front column 22. The front cross beam 23F having an L-shaped cross section has a first plate portion 27 along the front surface of the housing 3, and a second plate portion 28 protruding from the front surface of the housing 3 toward the inside of the housing 3 in a flange shape.

[0041] The rear cross beam 23R has a mirror image shape of the front cross beam 23F. The rear cross beam 23R is an integrally formed product of a steel plate having an L-shaped cross section. The rear cross beam 23R is horizontally mounted between the left rear column 22 and the right rear column 22. The left end of the rear cross beam 23R is screwed or welded to the left rear column 22. The right end of the rear cross beam 23R is screwed or welded to the right rear column 22. The rear cross beam 23R having an L-shaped cross section has a first plate portion 27 along the back surface of the housing 3, and a second plate portion 28 protruding from the back surface of the housing 3 toward the inner side of the housing 3 in a flange shape.

[0042] The middle cross beam 23C is horizontally mounted between the central portion of the front cross beam 23F and the central portion of the rear cross beam 23R along the depth direction of the housing 3. A support portion 71 for supporting the bell mouth 12 is provided at the upper end of the middle cross beam 23C. A notch portion 23Ca is provided on the front side of the housing 3 of the middle cross beam 23C. A notch portion 27a is provided at the central portion of the first plate portion 27 of the front cross beam 23F. Between these notches 23Ca and 27a, a mounting portion 29 for mounting the second electrical component box 59 is horizontally provided.

[0043] The motor base 5 is an integrally formed product of a steel plate after sheet metal processing. The motor base 5 is mounted on the front cross beam 23F and the rear cross beam 23R, which are a pair of transverse frame materials. In other words, the motor base 5 is mounted in the depth direction of the housing 3. The outdoor unit 1 has the same number of motor bases 5 as the plurality of air blowers 6, that is, two motor bases 5. The left motor base 5L supports the left air blower 6L. The right motor base 5R supports the right air blower 6R.

[0044] The two blowers 6, i.e., the left blower 6L and the right blower 6R, are arranged in the horizontal direction of the housing 3 and in the width direction of the housing 3. The two blowers 6 inhale air from the inside of the housing 3 and blow it out to the top of the housing 3. That is, the left blower 6L inhales air exclusively through the left heat exchanger 4L and blows the air out to the top of the housing 3 from the left blow outlet 11L of the left bell mouth 12L. In addition, the right blower 6R inhales air exclusively through the right heat exchanger and blows the air out to the top of the housing 3 from the right blow outlet 11R of the right bell mouth 12R.

[0045] The blower 6 includes a motor 31 supported by the motor base 5 and an impeller 32 driven to rotate by the motor 31. The blower 6 has a rotating shaft 33 of the motor 31 oriented in the height direction of the casing 3, that is, in the vertical direction when the casing 3 is grounded on a horizontal surface.

[0046] The rotating shaft 33 of the motor 31 protrudes vertically upward from the sleeve 35 of the motor 31. The sleeve 35 includes a plurality of legs 36 protruding in a direction perpendicular to the rotating shaft 33. The blower 6 is supported by the motor base 5 via the legs 36.

[0047] The impeller 32 is a so-called axial flow impeller. The impeller 32 is also simply called a propeller. The impeller 32 is fixed to the rotating shaft 33 of the motor 31. The impeller 32 is arranged above the sleeve 35 of the motor 31.

[0048] The first electrical component box 9 is disposed in the front upper portion of the machine room 7 and is supported by the right front pillar 22 and the front cross member 23F. The first electrical component box 9 accommodates various electrical components including a control circuit, a drive circuit, and the like.

[0049] Figure 3 It is a perspective view of a bell mouth of an outdoor unit according to an embodiment of the present invention.

[0050] Figure 4 It is a partial cross-sectional view between the bell mouth and the frame of the outdoor unit according to the embodiment of the present invention.

[0051] remove Figure 1 In addition, such as Figure 3 and Figure 4 As shown, the outdoor unit 1 according to the present embodiment further includes two bell mouths 12 corresponding to the two air blowers 6 .

[0052] The two bell mouths 12 are substantially the same shape and substantially the same size. In addition, the two bell mouths 12 are connected in a state where any one bell mouth 12 is rotated 180 degrees around the rotation center line of the blower 6 relative to any other bell mouth 12 and is opposite to each other. In other words, when observing from the joint 41 side of the two bell mouths 12, that is, observing one bell mouth 12 from the side of the other bell mouth 12 or observing the other bell mouth 12 from the side of one bell mouth 12, the two bell mouths 12 are substantially the same shape and substantially the same size.

[0053] Each bell mouth 12 has a cylindrical portion 43 that defines a ventilation path 42 in which the blower 6 is arranged, a top plate portion 45 connected to the upper end of the cylindrical portion 43 , and a bottom plate portion 46 connected to the lower end of the cylindrical portion 43 .

[0054] The cylindrical portion 43 has a center line substantially coinciding with the rotation center line of the blower 6 and extends in the vertical direction of the casing 3. The ventilation path 42 is a space inside the cylindrical portion 43 and is a cylindrical space that does not hinder the rotation of the blower 6.

[0055] The top plate portion 45 extends along a plane that is straight with the center line of the cylindrical portion 43. The top plate portion 45 is expanded so as to close the space defined between the outer peripheral surface of the cylindrical portion 43 and the inner surface of the housing 3. The outer edge of the top plate portion 45 is provided with a reinforcing rib 48 that increases the rigidity of the top plate portion 45. The reinforcing rib 48 hangs down toward the bottom plate portion 46.

[0056] The bottom plate portion 46 extends along a plane that is straight with the center line of the cylindrical portion 43. The bottom plate portion 46 is expanded so as to close the space defined between the outer peripheral surface of the cylindrical portion 43 and the inner surface of the housing 3. The outer edge of the bottom plate portion 46 is provided with a reinforcing rib 49 for increasing the rigidity of the bottom plate portion 46. The reinforcing rib 49 hangs downward so as to be away from the top plate portion 45.

[0057] Furthermore, the bell mouth 12 includes a plurality of reinforcing ribs 50 provided at appropriate intervals in the circumferential direction of the cylindrical portion 43. Each reinforcing rib 50 extends over the outer peripheral surface of the cylindrical portion 43 and the upper surface of the bottom plate portion 46.

[0058] Each bell mouth 12 is divided into two in the vertical direction with the cylindrical portion 43 as the boundary. Each bell mouth 12 includes: a bell mouth lower member 51 integrally having a bottom plate portion 46 and an inlet side portion of the cylindrical portion 43; a bell mouth upper member 52 integrally having a top plate portion 45 and an outlet side portion of the cylindrical portion 43; and a locking mechanism 53 connecting the bell mouth lower member 51 and the bell mouth upper member 52. The locking mechanism 53 includes a combination of multiple concave and convex portions that are locked to each other. The concave portion is, for example, a hole, and the convex portion is, for example, a claw. The bell mouth lower member 51 and the bell mouth upper member 52 are combined and connected in the direction along the rotation center line of the blower 6. Preferably, the connecting surface 55 of the bell mouth lower member 51 and the bell mouth upper member 52 is close to the outlet side of the ventilation path 42.

[0059] The two bell mouths 12 divide the two ventilation paths 42 in which the two blowers 6 are arranged and the non-ventilation space 58 divided between the outside of the two ventilation paths 42 and the inner surface of the housing 3. The non-ventilation space 58 is the space outside the cylindrical portion 43 of each bell mouth 12 and the space inside the housing 3.

[0060] The outdoor unit 1 includes a second electrical component box 59 disposed in the non-ventilated space 58. The second electrical component box 59 contains a reactor (not shown) having, for example, a laminated iron core (not shown) and a coil (not shown) wound around the laminated iron core. The reactor suppresses the influence of noise generated by the inverter circuit that controls the drive of the compressor 2.

[0061] The non-ventilated space 58 defined by the two bell mouths 12 and the housing 3 is a space cut off from the ventilation path 42, and is not a space where the flow of air in the outdoor unit 1 actively circulates. That is, the second electrical component box 59 disposed in the non-ventilated space 58 is located outside the air duct through which the air circulates after heat exchange by the heat exchanger 4. Therefore, the second electrical component box 59 disposed in the non-ventilated space 58 is not exposed to moisture contained in the air passing through the air duct in the outdoor unit 1.

[0062] In addition, moisture such as rainwater may intrude into the non-ventilated space 58 defined by the two bell mouths 12 and the housing 3 through the joint 41 between the two bell mouths 12 .

[0063] Therefore, each bell mouth 12 of the outdoor unit 1 includes a water conduit 61 disposed directly below the joint 41 between the two bell mouths 12 .

[0064] Figure 5It is a partial cross-sectional view of a bell mouth of an outdoor unit according to an embodiment of the present invention.

[0065] Figure 5 The cross section is a cross section that intersects and passes through the joint 41 of the two bell mouths 12.

[0066] Apart from Figure 3 and Figure 4 In addition, such as Figure 5 As shown, the water conduit 61 of the outdoor unit 1 according to the present embodiment protrudes from the lower surface of the top plate 45 of one bell mouth 12 and reaches the lower surface of the top plate portion 45 of the other bell mouth 12. The cross-sectional shape of the water conduit 61 is a U-shape that is released toward the upper side of the housing 3, that is, toward the lower surfaces of the top plate portions 45 of the two bell mouths 12.

[0067] The water conduit 61 receives water such as rain water dripping through the slit 41 , guides the water to the end portion at the center of the joint 41 or the end portion at the end of the joint 41 , and causes the water to drip.

[0068] In addition, the water conduit 61 extends along the joint 41. The water conduit 61 may be inclined downward toward the center of the joint 41, may be inclined downward toward the end of the joint 41, or may extend substantially horizontally.

[0069] In addition, the two bell mouths 12 are substantially of the same shape. Therefore, for example, if the water conduit 61 exists over the entire length of the joint 41 of the two bell mouths 12, the water conduit 61 of one bell mouth 12 will interfere with the water conduit 61 of the other bell mouth 12, and the connection between the two bell mouths 12 will be blocked. In other words, in a state where any bell mouth 12 is rotated 180 degrees around the center line of the cylindrical portion 43 relative to any other bell mouth 12 and faces each other, if the water conduit 61 of one bell mouth 12 faces the water conduit 61 of the other bell mouth 12, the connection between the two bell mouths 12 will be blocked.

[0070] Therefore, when the two bell mouths 12 are connected and opposite to each other, the water conduit 61 of one bell mouth 12 and the water conduit 61 of the other bell mouth 12 are located at different positions from each other. In other words, when the two bell mouths 12 are connected and opposite to each other, the water conduit 61 of one bell mouth 12 and the water conduit 61 of the other bell mouth 12 are located at different positions from each other and are not opposite to each other. In the bell mouth 12 involved in this embodiment, in order to avoid the water conduit 61 of one bell mouth 12 being opposite to the water conduit 61 of the other bell mouth 12, the water conduit 61 is arranged on one end side closer to the joint 41 relative to the center of the joint 41, and is not arranged on the other end side closer to the joint 41 relative to the center of the joint 41. Figure 3In the embodiment, the water conduit 61 is provided at an end portion closer to the back side of the joint 41 than the center of the joint 41 , and is not provided at an end portion closer to the front side of the joint 41 than the center of the joint 41 .

[0071] The water conduits 61 provided in two bell mouths 12 staggered with each other may be connected along the joint 41 in a state where the two bell mouths 12 are connected, or may not be connected.

[0072] In addition, each bell mouth 12 includes: a cover portion 62 extending from the top surface 12a of each bell mouth 12 without a step difference and covering the water conduit 61 of the bell mouth 12 to be connected directly above; and a recessed portion 63 that accommodates the cover portion 62 of the bell mouth 12 to be connected without a step difference in the top surface 12a of the bell mouth 12.

[0073] The cover portion 62 protrudes from the top plate portion 45 of one bell mouth 12 and reaches the top plate portion 45 of the other bell mouth 12 .

[0074] The cover 62 is provided so that when the two bell mouths 12 are connected and opposite to each other, the cover 62 of one bell mouth 12 and the cover 62 of the other bell mouth 12 are located at different positions from each other. In other words, when the two bell mouths 12 are connected and opposite to each other, the cover 62 of one bell mouth 12 and the cover 62 of the other bell mouth 12 are located at different positions from each other and are not opposite to each other. In the bell mouth 12 involved in the present embodiment, in order to avoid the cover 62 of one bell mouth 12 from being opposite to the cover 62 of the other bell mouth 12, the cover 62 is provided on the other end side closer to the seam 41 relative to the center of the seam 41, and is not provided on the one end side closer to the seam 41 relative to the center of the seam 41. Figure 3 In the embodiment, the cover portion 62 is provided at an end portion that is closer to the seam 41 than the center of the seam 41 , and is not provided at an end portion that is closer to the back of the seam 41 than the center of the seam 41 .

[0075] The cover 62 extends along the joint 41. The cover 62 only needs to overlap with at least one end of the water conduit 61 located directly below. The cover 62 of this embodiment overlaps with the end of the water conduit 61 near the center of the joint 41.

[0076] The recessed portion 63 of each bell mouth 12 accommodates the cap portion 62 to be connected when the two bell mouths 12 are connected.

[0077] The reinforcing ribs 48 of the two bell mouths 12 are adjacent to each other at the joint 41 of the two bell mouths 12. Therefore, a labyrinth structure formed by the adjacent reinforcing ribs 48, the water conduit 61, and the cover 62 is formed at the joint 41 of the bell mouths 12. This structure can reliably prevent the intrusion of water.

[0078] The second electrical component box 59 is disposed directly below the water conduit 61. That is, the water conduit 61 prevents moisture flowing from the joint 41 of the two bell mouths 12 into the non-ventilated space 58 from falling into the second electrical component box 59 and keeps it away from the second electrical component box 59 so that the moisture does not reach the second electrical component box 59.

[0079] The bottom plate 46 of the bell mouth 12 has a cutout 65 for arranging the second electrical component box 59. The cutout 65 avoids the second electrical component box 59 so that the second electrical component box 59 is directly supported by the frame 15 (mounting portion 29) of the housing 3 when the two bell mouths 12 are connected.

[0080] In addition, whether observing from two directions toward the joint 41 of the two bell mouths 12 or observing from a direction intersecting the joint 41 of the two bell mouths 12, the second electrical component box 59 disposed in the non-ventilated space 58 overlaps with the cylindrical portion 43 of the bell mouth 12. The second electrical component box 59 enters the space of the wedge shape drawn by the two adjacent cylindrical portions 43 in a top view. Such a configuration of the second electrical component box 59 can suppress unnecessary expansion of the non-ventilated space 58 and can efficiently utilize the space in the housing 3.

[0081] like Figure 2 and Figure 4 As shown, the joint of the bottom plate portions 46 of the two bell mouths 12 is supported by the support portion 71 of the middle cross beam 23C. The support portion 71 is provided at the central portion of the middle cross beam 23C in the depth direction of the housing 3. The support portion 71 includes a right support piece 71R, a center support piece 71C, and a left support piece 71L. These support pieces 71R, 71C, and 71L are regularly arranged in the form of a right support piece 71R, a center support piece 71C, a left support piece 71L, a right support piece 71R, a center support piece 71C, a left support piece 71L, ... from the front side of the housing 3. The right support piece 71R and the center support piece 71C support the lower end of the reinforcing rib 49 of the bottom plate portion 46 of the bell mouth 12R. The left support piece 71L and the center support piece 71C support the lower end of the reinforcing rib 49 of the bottom plate portion 46 of the bell mouth 12L. As a result, the joint of the bottom plate portions 46 of the two bell mouths 12 has a gap. This gap allows moisture that has intruded into the non-ventilated space 58 from the joint 41 between the two bell mouths 12 and the gap between the bell mouth 12 and the housing 3 to be discharged to the machine room 7 of the housing 3 .

[0082] The outdoor unit 1 involved in this embodiment includes: two bell mouths 12, which are substantially of the same shape, and are relatively connected in a state where any one of the bell mouths 12 is rotated 180 degrees around the rotation center line of the blower 6 relative to any other bell mouth 12, so as to divide two ventilation paths 42 in which two blowers 6 are arranged and a non-ventilation space 58 divided by the outer sides of the two ventilation paths 42 and the inner surface of the housing 3; and a second electrical component box 59, which is arranged in the non-ventilation space 58. Each bell mouth 12 has a water conduit 61 arranged just below the joint 41 of the two bell mouths 12. That is, the non-ventilation space 58 is located outside the air duct in the outdoor unit 1 in the housing 3 and is divided into air for circulating air after heat exchange by the heat exchanger 4. The second electrical component box 59 of the outdoor unit 1 is arranged in the non-ventilation space 58. Furthermore, each bell mouth 12 of the outdoor unit 1 includes a water conduit 61 that receives moisture that enters the non-ventilated space 58 from the joint 41 between the two bell mouths 12. Therefore, the outdoor unit 1 can prevent moisture from dripping into the second electrical component box 59 and can more reliably maintain the soundness of the second electrical component box 59.

[0083] The bell mouth 12 of the outdoor unit 1 according to the present embodiment includes: a cover portion 62 extending from the top surface 12a without a step difference and covering the water conduit 61 of the bell mouth 12 to be connected, and a recessed portion 63 for receiving the cover portion 62 of the bell mouth 12 to be connected without a step difference in the top surface 12a of the bell mouth 12. Therefore, the outdoor unit 1 can more reliably prevent moisture from reaching the second electrical component box 59, and can further reliably maintain the soundness of the second electrical component box 59.

[0084] The second electrical component box 59 of the outdoor unit 1 according to this embodiment is disposed directly below the water conduit 61. Therefore, the outdoor unit 1 can keep moisture entering the non-ventilated space 58 away from the second electrical component box 59 and can more reliably maintain the health of the second electrical component box 59.

[0085] Therefore, according to the outdoor unit 1 of the air conditioner according to the present embodiment, it is possible to prevent moisture, for example, rainwater, from reaching the second electrical component box 59, and to more reliably maintain the soundness of the second electrical component box 59.

[0086] Several embodiments of the present invention have been described, but these embodiments are presented as examples only and are not intended to limit the scope of the present invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and their variations are included in the scope and spirit of the invention, and are also included in the invention described in the patent claims and their equivalents.

[0087] Description of symbols

[0088] 1Outdoor unit

[0089] 2 compressor

[0090] 3 Shell

[0091] 5 Motor base

[0092] 5L left motor base

[0093] 5R right motor base

[0094] 6 Blower

[0095] 6L left blower

[0096] 6R right blower

[0097] 7. Mechanical Room

[0098] 7L Left Mechanical Room

[0099] 7R Right Machinery Room

[0100] 8 Blower room

[0101] 8L left blower room

[0102] 8R right blower room

[0103] 11 Blowing outlet

[0104] 11L Left blow outlet

[0105] 11R Right blow outlet

[0106] 12 flared mouth

[0107] 12L Left Bell

[0108] 12R Right bell mouth

[0109] 12a Top surface

[0110] 15 Frames

[0111] 16 outer panels

[0112] 21 Base frame

[0113] 22 columns

[0114] 23 beam

[0115] 23F Front beam

[0116] 23R rear cross member

[0117] 25 Beam Material

[0118] 25F Front beam material

[0119] 25R rear beam material

[0120] 25C Stringer Material

[0121] 27 First board

[0122] 28 Second board

[0123] 31 Electric Motor

[0124] 32 Impeller

[0125] 33 Rotating Axis

[0126] 35 casing

[0127] 36 feet

[0128] 41 seams

[0129] 42 ventilation paths

[0130] 43 cylindrical portion

[0131] 45 Top plate

[0132] 46 bottom plate

[0133] 48, 49, 50 reinforcement ribs

[0134] 51 bell mouth lower member

[0135] 52 bell mouth upper component

[0136] 53 Locking mechanism

[0137] 55 connection surface

[0138] 58 Non-ventilated space

[0139] 59 Second electrical component box

[0140] 61 Aqueduct

[0141] 62 cover

[0142] 63 concavity

[0143] 65 notch part.

Claims

1. An outdoor unit of an air conditioner, characterized in that: include: case; Two blowers are arranged in a horizontal direction of the housing and suck air from the inside of the housing and blow it out toward the top of the housing; Two bell mouths, the two bell mouths corresponding to the two air blowers; a compressor housed in the housing; as well as an electrical component, which is related to the drive of the compressor or the drive of the two blowers, The two bell mouths are substantially of the same shape, and are connected in a state where any one of the bell mouths is rotated 180 degrees relative to any other bell mouth around the rotation center line of the blower to be opposite to each other, thereby dividing two ventilation paths where the two blowers are arranged and a non-ventilation space divided by the outer sides of the two ventilation paths and the inner surface of the shell. The electrical components are arranged in the non-ventilated space, Each of the bell mouths has a water conduit disposed directly below the joint between the two bell mouths. The water conduit is disposed on the end side of the joint relative to the center of the joint and is located at different positions from each other when the two bell mouths are opposed to each other.

2. The outdoor unit of the air conditioner according to claim 1, characterized in that: Each of the bell mouths has: a cover portion extending from the top surface of each bell mouth without a step difference and covering the water conduit of the bell mouth to be connected directly above; and a recessed portion for accommodating the cover portion of the bell mouth to be connected without a step difference in the top surface of the bell mouth.

3. The outdoor unit of the air conditioner according to claim 1 or 2, characterized in that: The electrical components are arranged directly below the water conduit.

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