KR100709465B1 - Outdoor unit of air conditioner - Google Patents

Abstract

The present invention provides an outdoor unit of an air conditioner capable of improving wind performance. The outdoor unit 3 of the air conditioner includes an outdoor unit casing, a blowing fan 38, a bell mouse 45, a fan motor 39, and a fan motor stand 44. The outdoor unit casing is a front plate provided with a ceiling plate 50 disposed on the upper surface, a bottom plate 51 disposed on the lower surface, and an air blowout hole 59 disposed on the front surface. 52, 52). The blowing fan 38 is accommodated in the outdoor unit casing, and generates the airflow blown out through the blowout hole 59 of the front plate 52. The bell mouse 45 guides the air flow generated by the blowing fan 38. The fan motor 39 drives the blowing fan 38 to rotate. The fan motor stand 44 has a fan motor 39 fixed thereto, an upper part fixed to all of the top plates 58, and a lower part fixed to all bottom plates 57, and the front side of the blowing fan 38. Is placed on. The bell mouth 45 and the fan motor stage 44 are positioned on the basis of the front plate 52.

Air conditioner, outdoor unit, blowing fan, fan motor, fan motor stand

Description

Outdoor unit of air conditioner {OUTDOOR UNIT OF AIR CONDITIONER}

The present invention relates to an outdoor unit of an air conditioner.

Generally, the outdoor unit of an air conditioner is equipped with the fan motor which rotationally drives a blowing fan, and a fan motor is attached to an outdoor unit via a fan motor stand. It is preferable that this fan motor stage is fixed to a ceiling board or a floor board in order to ensure strength. The fan motor stand fixed to the ceiling plate or the bottom plate is often disposed upstream of the conventional blower fan, and is disposed between the outdoor heat exchanger and the blower fan and fixed to the ceiling plate or the bottom plate.

On the other hand, the outdoor unit of the air conditioner is often provided with a bell mouse. The bell mouse is a member for guiding the air flow generated by the blowing fan, and is disposed to cover the circumference of the blowing fan. In addition, since the bell mouse is installed from the vicinity of the blowing fan to the downstream side of the blowing fan for guiding air, it is often fixed to the front plate installed at the front side of the outdoor unit on the downstream side of the blowing fan. (See Patent Document 1).

<Patent Document 1>

Japanese Patent Laid-Open No. 2003-124649

Thus, in the outdoor unit of the air conditioner provided with the fan motor stand fixed to a ceiling board or a floor board, a fan motor stand and a bell mouse are often arrange | positioned separately. However, in the mounting structure in which the fan motor stage and the bell mouse are arranged apart from each other, it is difficult to reduce the clearance between the bell mouse and the blowing fan. That is, since the fan motor stand and the bell mouse are disposed separately from each other, it is difficult to reduce the dimensional error of the arrangement of the fan motor stand and the bell mouse, and it is necessary to secure an extra clearance in anticipation of some errors. In order to improve the wind performance of the bell mouse, it is preferable to reduce the clearance between the bell mouse and the blowing fan, but in the above-described mounting structure, it is difficult to reduce the clearance and it is difficult to improve the wind performance.

An object of the present invention is to provide an outdoor unit of an air conditioner capable of improving wind performance.

The outdoor unit of the air conditioner according to the first invention includes an outdoor unit casing, a blowing fan, a bell mouse, a fan motor, and a fan motor stand. The outdoor unit casing includes a ceiling plate disposed on the upper surface, a bottom plate disposed on the lower surface, and a front plate disposed on the front surface and provided with air blowing holes. The blowing fan is accommodated in the outdoor unit casing and generates an air stream blowing through the blowout hole in the front plate. The bell mouse guides the airflow generated by the blower fan. The fan motor rotates the blowing fan. The fan motor stand has a fan motor fixed, an upper part fixed to the entire ceiling plate, and a lower part fixed to the entire bottom plate, and arranged on the front side of the blowing fan. The bell mouse and fan motor are positioned relative to the front plate.

In the outdoor unit of this air conditioner, since the upper part and the lower part of the fan motor stand are fixed to all of the top plate and the bottom plate, respectively, the fan motor and the fan motor stand are firmly mounted to the outdoor unit casing. In addition, since both the fan motor stand and the bell mouse are positioned on the basis of the front plate, errors in the dimensions of the arrangement of the fan motor stand and the bell mouse can be reduced. Therefore, in the outdoor unit of this air conditioner, it is easy to reduce the clearance between a bell mouse and a blowing fan, and can improve wind performance.

The outdoor unit of the air conditioner according to the second invention is the outdoor unit of the air conditioner of the first invention, wherein the fan motor stage and the bell mouse are arranged along the inner surface of the front plate.

In the outdoor unit of this air conditioner, since the fan motor stand and the bell mouse are arranged along the inner surface of the front plate, the fan motor stand and the bell mouse are easily positioned relative to the front plate. As a result, in the outdoor unit of the air conditioner, it is easy to reduce the clearance between the bell mouse and the blowing fan, and the wind performance can be improved.

The outdoor unit of the air conditioner according to the third aspect of the invention is the outdoor unit of the air conditioner of the second aspect of the invention, wherein the fan motor stage is disposed between the bell mouse and the front plate and inscribed with the bell mouse and the front plate.

In the outdoor unit of this air conditioner, the fan motor stage is disposed between the bell mouse and the front plate and inscribed to the bell mouse and the front plate, so that the positioning of the fan motor and the bell mouse is easier. For this reason, in the outdoor unit of this air conditioner, it is much easier to reduce the clearance between the bell mouse and the blowing fan, and the wind performance can be easily improved.

The outdoor unit of the air conditioner which concerns on 4th invention is an outdoor unit of the air conditioner of any one of 1st-3rd invention WHEREIN: A front board is a resin member.

In the outdoor unit of this air conditioner, since the front plate is a member made of resin, the manufacturing cost can be reduced as compared with the case where it is made of sheet metal or the like. In addition, when the front plate is mounted on the front plate and the front plate is a member made of resin, the strength of the portion where the fan motor stand is mounted becomes a problem, but in the outdoor unit of the air conditioner, the upper part of the fan motor stand is fixed to all the ceiling plates. And the lower part is fixed to all of the bottom plates, the strength is also secured.

The outdoor unit of the air conditioner which concerns on 5th invention is the outdoor unit of the air conditioner of any one of 1st-4th invention WHEREIN: The blowout hole of a front plate is comprised by the some slits partitioned by the grating | lattice. . The fan motor stage and the grid are arranged to reduce the blowout resistance of the air stream.

In general, when the fan motor stand is placed in the flow of air flow by the blowing fan, there is a fear that the blow-out resistance of the air is increased by the fan motor stand and the wind performance is lowered.

However, in the outdoor unit of this air conditioner, the fan motor stage and the lattice are arranged so that the blowout resistance of the air flow is reduced. For this reason, increase of the blowout resistance of air can be suppressed, and wind performance can be improved.

The outdoor unit of the air conditioner which concerns on 6th invention is an outdoor unit of the air conditioner of 5th invention WHEREIN: A fan motor stand has a vertical member. The vertical member extends in the vertical direction when viewed from the front and is disposed to overlap the lattice.

In the outdoor unit of this air conditioner, the vertical member of the fan motor stand extends in the vertical direction when viewed from the front and is arranged to overlap the lattice. For this reason, the increase of the blowout resistance of the airflow by a fan motor stand can be suppressed. For this reason, increase of the blowout resistance of air can be suppressed, and wind performance can be improved.

The outdoor unit of the air conditioner according to the seventh invention is the outdoor unit of the air conditioner of any one of the first to sixth inventions, wherein the front plate, the bell mouse, the blowing fan, the fan motor, and the fan motor stand are modularized.

In the outdoor unit of this air conditioner, since the front plate, the bell mouse, the blowing fan, the fan motor, and the fan motor stand are modularized, productivity is improved and positioning of the fan motor stand and the bell mouse relative to the front plate is easy. .

1 is an external view of an air conditioner.

2 is a configuration diagram of a refrigerant circuit.

3 is a perspective view illustrating a configuration of an outdoor unit.

4 is a perspective view of a part of the outdoor unit.

5 is a front view of a part of the outdoor unit.

6 is a top view of a part of the outdoor unit.

7 is an enlarged front view of the front plate.

<Explanation of symbols for the main parts of the drawings>

1: air conditioner 3: outdoor unit

5: outdoor unit casing 38: blowing fan

39: fan motor 44: fan motor stand

45: Bell Mouse 50: Ceiling Panel

51: bottom plate 52: electric plate

59: blowout hole 60: grid

65: vertical member

<Whole structure of air conditioner>

1 shows an appearance of an air conditioner 1 in which an embodiment of the present invention is employed.

This air conditioner 1 is equipped with the indoor unit 2 attached to the indoor wall surface, etc., and the outdoor unit 3 installed outdoors.

The indoor heat exchanger 70 is housed in the indoor unit 2, the outdoor heat exchanger 30 is housed in the outdoor unit 3, and each heat exchanger 30, 70 is connected by the refrigerant pipe 4. The refrigerant circuit is constituted by.

<Schematic outline of refrigerant circuit of air conditioner>

The structure of the refrigerant circuit of the air conditioner 1 is shown in FIG. This refrigerant circuit mainly comprises an indoor heat exchanger 70, an accumulator 31, a compressor 32, a four-way switching valve 33, an outdoor heat exchanger 30, and an electric expansion valve 34.

The indoor heat exchanger 70 installed in the indoor unit 2 performs heat exchange with the air in contact. In addition, the indoor unit 2 is provided with a cross flow fan 71 for sucking the indoor air and passing it through the indoor heat exchanger 70 to discharge the air after the heat exchange is performed to the room. This cross flow fan 71 is comprised by the long thin cylinder shape, and is arrange | positioned so that the center axis | shaft may become parallel in a horizontal direction. The cross flow fan 71 is rotationally driven by an indoor fan motor 72 provided in the indoor unit 2.

The outdoor unit 3 includes a compressor 32, a four-way switching valve 33 connected to the discharge side of the compressor 32, an accumulator 31 connected to the suction side of the compressor 32, and a four-way switching valve ( The outdoor heat exchanger 30 connected to 33 and the electric expansion valve 34 connected to the outdoor heat exchanger 30 are provided. The electric expansion valve 34 is connected to the pipe 41 through the filter 35 and the liquid closing valve 36, and is connected to one end of the indoor heat exchanger 70 through the pipe 41. . In addition, the four-way switching valve 33 is connected to the pipe 42 through the gas closing valve 37, and is connected to the other end of the indoor heat exchanger 70 through this pipe 42. These piping 41 and 42 correspond to the refrigerant | coolant piping 4 of FIG. In addition, the outdoor unit 3 is provided with a blowing fan 38 for discharging the air after the heat exchange in the outdoor heat exchanger 30 to the outside. This blowing fan 38 is rotationally driven by the fan motor 39.

Hereinafter, the configuration of the outdoor unit will be described in detail.

<Construction of the outdoor unit>

As shown in FIG. 3, the outdoor unit 3 includes an outdoor unit casing 5 (see FIG. 1), a compressor 32, a four-way switching valve 33, an electric expansion valve 34 (see FIG. 2), and a closing valve. (36, 37), reactor 40, electronics box 43, outdoor heat exchanger 30, blowing fan 38, fan motor 39, fan motor stand 44, bell mouse 45, etc. are provided.

The outdoor unit casing 5 mainly includes a ceiling plate 50, a bottom plate 51, a front plate 52, a left plate 53, a right plate 54, a closing valve cover 55, and a partition plate 56. .

The ceiling plate 50 is disposed on the upper surface of the outdoor unit 3 and covers the upper surface of the internal space of the outdoor unit 3. The ceiling plate 50 is formed of sheet metal. In addition, the edge of the ceiling plate 50 is bent downward in the vertical direction, and screw holes as fixing means for fixing the front plate assembly 6 (to be described later) to all the ceiling plates 58 located on the front side of the bent portion. Is installed.

The bottom plate 51 is arrange | positioned at the lower surface of the outdoor unit 3, and covers the lower part of the internal space of the outdoor unit 3. The bottom plate 51 is formed of sheet metal. In addition, the edge of the bottom plate 51 is bent upward in the vertical direction, and all of the bottom plates 57 located at the front side of the bent portion are provided with screw holes as fixing means for fixing the front plate assembly 6. have.

The front plate 52 is disposed in front of the outdoor unit 3 and covers the front of the interior space of the outdoor unit 3. A blowout hole 59 through which air blows out is provided in the front plate, and air blowing out from the inside of the outdoor unit 3 flows through. The front plate 52 will be described later in more detail.

The left plate 53 is disposed on the left side of the outdoor unit 3 and covers the left side of the internal space of the outdoor unit 3. The left side plate 53 is formed with sheet metal.

The right side plate 54 covers the right side of the internal space of the outdoor unit 3. The right side plate 54 is formed with sheet metal. Furthermore, the resin closing valve cover 55 is attached to the right side of the right side plate 54, that is, the outside.

The partition plate 56 is provided perpendicularly to the bottom plate 51, as shown in FIG. 4, and partitions the internal space of the outdoor unit 3 into two spaces to the left and right. The space located on the left side with respect to the partition plate 56 is a ventilation chamber, and is a space through which air taken in from the outside of the outdoor unit 3 is discharged to the outside through the outdoor heat exchanger 30. The space located on the right side with respect to the partition plate 56 is a machine room, and the space is somewhat blocked from the ventilation chamber. The machine room houses most of the mechanical parts. In addition, FIG. 4 is a perspective overview drawing which shows a part of structure of the outdoor unit 3, and abbreviate | omits the front plate 52 etc. for easy understanding.

The compressor 32 is arranged in the machine room and is fixed to the bottom plate 51. The four-way switching valve 33 is disposed on the side of the compressor 32. The electric expansion valve 34 (refer FIG. 2) is arrange | positioned similarly to the compressor 32, and is arrange | positioned at the side of the compressor 32. As shown in FIG. The closing valves 36 and 37 are disposed below the right side plate 54. The reactor 40 is disposed on the side wall on the machine room side of the partition plate 56. The electrical equipment box 43 is disposed above the machine room. The electronic device box 43 includes a control circuit such as a microcomputer chip for controlling various devices, a memory for storing a control program, and other circuit components, and includes a compressor 32 and a four-way switching valve ( 33), the electric expansion valve 34, the reactor 40 and the harness (harness) or the like.

The outdoor heat exchanger 30 is arranged in the ventilation chamber and performs heat exchange with the air passing through. The outdoor heat exchanger 30 is provided along the left side from the rear part of the ventilation chamber, and has an approximately L shape.

The blower fan 38, the fan motor 39, the fan motor stand 44, and the bell mouth 45 are arranged in the ventilation chamber and constitute the front plate assembly 6 modularized with the front plate 52. As shown in FIG. Hereinafter, the configuration of the front plate assembly 6 will be described in detail.

<Configuration of Plate Assembly>

As shown in FIG. 3, the front plate assembly 6 includes a front plate 52, a blowing fan 38, a fan motor 39, a fan motor stand 44, and a bell mouth 45 for the front plate 52. It is modularized and configured as a standard.

[Full board]

The front plate 52 is made of resin such as polypropylene and is provided on the front surface of the outdoor unit 3. The front plate 52 is disposed on the front side of the bell mouth 45 or the fan motor stand 44. Screw holes are provided at the upper and lower ends of the front plate 52, respectively. When the front plate assembly 6 is fixed to the outdoor unit 3, the screw passes through the screw holes of the front plate 52 and the screw holes provided in all of the top plate 58 and the bottom plate 57. And the top plate 50, the front plate 52 and the bottom plate 51 is screwed. Further, the front plate 52 is provided with a grating 60 (see FIG. 7) extending in the vertical direction and the horizontal direction, and a plurality of slit-shaped blowout holes 59 partitioned by the grating 60 are provided. The air flow generated by the blowing fan 38 and sucked into the ventilation chamber from the rear surface of the outdoor unit 3 is discharged to the outside of the outdoor unit 3 through this blowout hole 59. Moreover, in the vicinity of the center of the part in which the blowout hole 59 was provided, the circular solid part 61 in which the blowout hole 59 is not provided is provided, and this solid part 61 is seen from the front. It is arrange | positioned at the position which overlaps with the fan motor 39 in view.

(Blowing fan)

The blowing fan 38 is a propeller fan having a plurality of vanes, and is located downstream of the outdoor heat exchanger 30. As shown in FIG. 5, the blowing fan 38 is arrange | positioned in the substantially center of a ventilation chamber from the front view. In addition, FIG. 5 is a front view which shows a part of the structure of the outdoor unit 3, and abbreviate | omits the bell mouse 45 etc. for easy understanding. 4, the fan motor accommodating part 62 is provided in the center of the blowing fan 38. As shown in FIG. The fan motor accommodating part 62 has a hollow cylindrical shape in which one bottom surface is opened, and this opening is carried out in the state in which the blower fan 38 was accommodated in the outdoor unit 3. Is arranged to face the front side, ie the downstream side. The fan motor 39 is inserted and received from the front side in the fan motor accommodating part 62. The blowing fan 38 is fixed to the rotational axis of the fan motor 39, and is driven to rotate about the axis parallel to the front-rear direction by the fan motor 39. The air flow generated by the blowing fan 38 is taken into the ventilation chamber from the rear side of the outdoor unit 3 and is blown out through the blowout holes 59 of the outdoor heat exchanger 30, the bell mouth 45, and the front plate 52. Discharged to the outside of the outdoor unit (3).

[Bell mouse]

The bell mouth 45 shown in FIG. 3 and FIG. 6 is formed of resin, such as polypropylene, and forms the air path | route which guides the airflow which is produced by the blower fan 38 and blows to the outside. The bell mouth 45 is fixed to the inner surface of the front plate 52 along the inner surface of the front plate 52 and is disposed to cover the periphery of the blowing fan 38. The air flow generated by the blower fan 38 is received from the outside into the ventilation chamber through the rear side of the outdoor unit 3, through the outdoor heat exchanger 30, and the opening of the bell mouth 45 and the front plate 52. Blows out to the outside of the outdoor unit (3) through the take-out hole (59). The bell mouth 45 has the cylindrical part 63 and the flat part 64, as shown in FIG.

The cylindrical portion 63 has a thin hollow cylindrical shape. The cylindrical part 63 is provided in the rear part of the bell mouth 45, and comprises the circular opening which the airflow which the blower fan 38 produces | generates. The cylindrical part 63 is arrange | positioned so that the center of an opening may coincide with the rotation axis of the blowing fan 38. A part of the front side of the blowing fan 38 is inserted inside the cylindrical portion 63 (see FIG. 6).

The planar portion 64 is a thin member having a rectangular shape when viewed from the front, and is provided at the front side portion of the bell mouth 45. The flat portion 64 occupies most of its area by circular openings. The edge of this opening is continuous to the cylindrical part 63, and the air produced by the blowing fan 38 passes out. The flat part 64 is provided with the screw hole in the upper end and the lower end, and is fixed to the inner surface of the front plate 52 by screwing. Therefore, the bell mouse 45 is mounted on the inner surface of the front plate 52 and positioned based on the front plate 52.

[Fan motor]

The fan motor 39 is inserted into the cylindrical portion 63 of the blowing fan 38 from the front side and mounted to the blowing fan 38. The fan motor 39 is disposed so that the rotational axis is located in parallel in the front-rear direction of the outdoor unit 3. The rotation axis of the fan motor 39 is fixed to the rotation center of the blowing fan 38, and the fan motor 39 drives the blowing fan 38 to rotate.

[Fan motor stand]

The fan motor stand 44 is a member to which the fan motor 39 is fixed and supports the fan motor 39, and is formed of sheet metal. As shown in FIGS. 5 and 6, the fan motor stand 44 is disposed on the front side of the blowing fan 38, and on the front side of the fan motor 39, the front side of the bell mouth 45. It is arranged on the side. The fan motor stand 44 is disposed along the inner surface of the front plate 52 and is fixed to the inner surface of the front plate 52. Therefore, the fan motor stage 44 is positioned on the basis of the front plate 52. In addition, the fan motor stand 44 is located between the front plate 52 and the bell mouse 45 in the state where the front plate assembly 6 is assembled, and is inscribed to the front plate 52 and the bell mouse 45. As illustrated in FIG. 5, the fan motor stand 44 has a thin shape having a rectangular shape that is long in the vertical direction when viewed from the front, and extends to approximately the same height as the upper and lower surfaces of the outdoor unit 3. have. That is, the fan motor stand 44 has both upper and lower ends extending to the same height as the upper and lower ends of the front plate 52. Screw holes are provided at the upper and lower ends of the fan motor stand 44, respectively. The screw holes are installed to coincide with the screw holes respectively provided at the upper and lower ends of the front plate 52 with the front plate assembly 6 assembled. And when the front plate assembly 6 is fixed to the outdoor unit 3, the upper end of the front plate 52 and the upper end of the fan motor stand 44 are screwed to all the ceiling plates 58 by a common screw. In addition, the lower end of the front plate 52 and the lower end of the fan motor stand 44 are fixed to all the bottom plates 57 by a common screw.

In addition, a plurality of rectangular openings are provided in the fan motor stage 44 side by side in the vertical direction when viewed from the front. Each of these openings has a width of right and left that is slightly smaller than the width of left and right of the fan motor stage 44, and each of the openings is arranged in close proximity in the vertical direction. Therefore, the fan motor stage 44 is comprised by the two elongate vertical members 65 extending in a perpendicular direction, and the several elongate horizontal members 66 extending in a left-right direction, and are spaced apart The horizontal member 66 is connected between the vertical members 65 arranged with each other. For this reason, the fan motor stage 44 has a small surface area when viewed from the front, and the ventilation resistance by the blower fan 38 is reduced. In the state where the front plate assembly 6 is assembled, as illustrated in FIG. 7, the vertical member 65 of the fan motor stand 44 and the part of the grating 60 of the front plate 52 overlap each other. do. For this reason, the ventilation resistance by the blowing fan 38 is further reduced.

<Characteristic>

(One)

Conventionally, in the outdoor unit 3 of the air conditioner 1 having a structure in which the fan motor stage 44 is fixed to the top plate 50 and the bottom plate 51 to secure the strength, the fan motor stage 44 is It is often arranged between the fan motor 39 and the outdoor heat exchanger 30. In this case, at the time of assembling the outdoor unit 3 of the air conditioner 1, the fan motor base 44, the fan motor 39, and the blowing fan 38 are fixed in order from the back side, and the bottom plate ( The lower end of the fan motor stage 44 is fixed to 51. Apart from these, the front plate 52 and the bell mouse 45 are fixed. Thereafter, the blowing fan is inserted into the opening of the bell mouth 45, and the front plate 52 is fixed to the bottom plate 51. In this case, while the blowing fan 38 is positioned with respect to the bottom plate 51 via the fan motor stand 44, the bell mouse 45 is positioned with respect to the front plate 52. As shown in FIG. For this reason, it is difficult to improve the dimensional accuracy of the position of the blowing fan 38 and the bell mouth 45, and the inner peripheral surface of the opening of the bell mouth 45 and the blowing fan 38 of the blowing fan 38 are difficult to improve. It is difficult to make clearance between outer peripheries small. In order to improve the wind performance in the outdoor unit 3, it is preferable to reduce the clearance between the bell mouth 45 and the blowing fan 38, but in the outdoor unit 3 of the conventional air conditioner 1, the fan motor It was difficult to reduce the clearance while securing the strength of the mounting portion of the base 44.

In the outdoor unit 3 of this air conditioner 1, the fan motor base 44, the bell mouth 45, and the front plate 52 are combined integrally with respect to the front plate 52. As shown in FIG. For this reason, the fan motor stand 44 and the bell mouse 45 are positioned with respect to the front plate 52, respectively. Therefore, the dimension accuracy of the position of the blowing fan 38 and the bell mouse 45 improves, and centering of the blowing fan 38 and the bell mouse 45 is easy. As a result, the clearance between the inner circumferential surface of the opening of the bell mouth 45 and the outer circumference of the blower fan 38 can be easily reduced, and the wind performance can be improved and the unbalance of the wind performance can be reduced.

(2)

In the outdoor unit 3 of this air conditioner 1, the dimension accuracy of the position of the blowing fan 38 and the bell mouth 45 is improving. For this reason, it is easy to make the lattice 60 of the front plate 52 and the vertical member 65 of the fan motor stand 44 into the same position as viewed from the front, and to overlap them. For this reason, the ventilation resistance of the airflow blown out through the ventilation chamber and the front plate 52 can be further reduced.

(3)

In the outdoor unit 3 of the air conditioner 1, the blower fan 38, the fan motor 39, the fan motor stand 44, the bell mouse 45, and the front plate 52 are modularized. The components of the wind rotation are compactly concentrated. For this reason, cost down is possible. Moreover, the wiring process which connects these component parts becomes easy. This improves productivity in the outdoor unit 3 of the air conditioner 1.

<Other Example>

(One)

In the above embodiment, the front plate 52 is formed of resin, but may be formed of sheet metal. In view of cost down and weight reduction, however, the front plate 52 is preferably formed of a resin. In addition, in the present invention, since the fan motor stand 44 is fixed not only to the front plate 52 but also to the bottom plate 51 and the ceiling plate 50, it is necessary to ensure the required strength even if the front plate 52 is formed of resin. It is easy.

(2)

In the above embodiment, the ventilation resistance is reduced by arranging the lattice 60 of the front plate 52 and the vertical member 65 of the fan motor stand 44 so as to overlap when viewed from the front, but in another arrangement Therefore, ventilation resistance may be reduced. For example, the grating 60 and the horizontal member 66 may be arranged so as to overlap when viewed from the front, and the ventilation resistance can be reduced by arranging the slit and the fan motor stage symmetrically when viewed from the front. Do. In addition, in the present invention, since the fan motor stand 44 is positioned on the front plate 52, the size of the arrangement is improved, so that the outdoor unit 3 of the arrangement as described above can be manufactured more accurately. .

In this invention, since the clearance between a bell mouse and a blowing fan is easy to be made small, it is suitable for improving wind performance in the outdoor unit of an air conditioner.

Claims (7)

A front plate 52 provided with a top plate 50 disposed on an upper surface, a bottom plate 51 disposed on a lower surface, and an air blowout hole 59 arranged on a front surface thereof. Outdoor unit casing (5) having, A blowing fan 38 which is accommodated in the outdoor unit casing 5 and generates air flow blowing through the blowout hole 59 of the front plate 52; Bell mouse 45 for guiding the air flow generated by the blowing fan 38, A fan motor 39 which drives the blowing fan 38 to rotate; The fan motor 39 is fixed, the upper part is fixed to the front of the ceiling plate 50, the lower part is fixed to all of the bottom plate 51, the front side of the blowing fan 38 Fan Motor Stand Placed (44) And The bell mouse 45 and the fan motor stage 44 are positioned based on the front plate 52. The outdoor unit 3 of the air conditioner 1. The method of claim 1, The fan motor stage 44 and the bell mouse 45 are disposed along the inner surface of the front plate 52. The outdoor unit 3 of the air conditioner 1. The method of claim 2, The fan motor stand 44 is disposed between the bell mouse 45 and the front plate 52, and is inscribed with the bell mouse 45 and the front plate 52. The outdoor unit 3 of the air conditioner 1. The method of claim 1, The front plate 52 is a resin member The outdoor unit 3 of the air conditioner 1. The method of claim 1, The extraction hole 59 of the front plate 52 is composed of a plurality of slits partitioned by the lattice 60, The fan motor stage 44 and the grid 60 are arranged to reduce the blowout resistance of the air flow. The outdoor unit 3 of the air conditioner 1. The method of claim 5, The fan motor stage 44 has a vertical member 65 that extends in the vertical direction when viewed from the front and is disposed to overlap the lattice 60. The outdoor unit 3 of the air conditioner 1. The method according to any one of claims 1 to 6, The front plate 52, the bell mouse 45, the blowing fan 38, the fan motor 39, and the fan motor stand 44 are modularized. The outdoor unit 3 of the air conditioner 1.

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