JP2002267207A - Outdoor unit of split air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the height and a dimension of a casing, without being restricted by the diameter of a propeller fan of a blower or the diameter of a bell mouth, while keeping blowing performance. SOLUTION: The outdoor unit of a split air conditioner comprises a fan ring 600, which is provided with the bell mouth 610 on the front surface of a base plate 100, with a structure in which at least a portion of the propeller fan 553 of the blower is confronted with the bell mouth 610. A ceiling reinforcement plate 620 for reinforcing the ceiling of an outer body 700 is provided to the upper part of the fan ring 600, while a complementary recess 622 for the bell mouth 610 is formed on the plate 620.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit for a split type air conditioner, and more particularly, to a housing having a smaller height without being restricted by a fan diameter or a bell mouth diameter of a blower. The present invention relates to an outdoor unit of a split type air conditioner having high rigidity of a housing and capable of being made more compact.

[0002]

2. Description of the Related Art In a split type air conditioner (air conditioner), an indoor unit and an outdoor unit are connected via a pipe.
The outdoor unit is installed outdoors, for example, in a garden, on a veranda, on a roof, or the like. FIG. 19 schematically shows the internal structure of a general outdoor unit in plan view.

[0003] Usually, the outdoor unit has a box-shaped casing 1 in which a heat exchanger 2, a blower fan 3, a compressor 4 and the like are housed. In many cases, the number of the heat exchangers 2 is one, and some of them are arranged in a plane along one surface of the casing 1.
It is arranged substantially in an L-shape along the two surfaces.

[0004] Due to this, the compressor 4 is installed at a corner of the housing 1 and the blower fan 3 is arranged downstream of the heat exchanger 2. Although not shown, an electrical component box, an operation valve mounting board, and the like are provided around the compressor 4.

[0005]

However, such a component arrangement has the following problems. First, since there is only one L-shaped heat exchanger, there is naturally a limit to downsizing without reducing performance. In particular, the height is limited by the propeller fan diameter and the bellmouth diameter of the blower, so that it has been difficult to reduce the height.

Therefore, for example, when a split type air conditioner is purchased instead of an integrated type air conditioner which has been used up to now, an existing air conditioner designed to protrude from a wall hole to the outside for installation of the integrated type air conditioner is described. Although the outdoor unit is placed on the installation base, the conventional outdoor unit is uniformly too large, so that the existing installation base has to be remodeled.

Further, the housing is weak against a load from the ceiling surface and easily deformed. Since no partition plate is particularly provided around the compressor, noise tends to come out during operation. In addition, since the blower fan is mainly supported on the base plate side of the housing, vibration during operation is transmitted to the entire housing after being amplified by the base plate, and in extreme cases, large noise is generated due to resonance. appear. Further, when the base plate is deformed due to, for example, a drop impact during transportation, the compressor may be tilted and installed and operated as it is.

Further, since the compressor is disposed at the corner of the housing, the center of gravity of the outdoor unit is deviated. In other words, it is difficult to carry because of poor weight balance, and this imposes an extra burden on the operator, especially when lifting the ladder to a high place.

[0009]

According to the present invention, it is possible to reduce the height of the housing without being restricted by the propeller fan diameter or the bellmouth diameter of the blower while maintaining the blowing performance. . Further, an outdoor unit of a split-type air conditioner having high rigidity of the housing, low noise and vibration during operation, and good overall weight balance is provided.

To achieve the above object, the present invention provides a substantially rectangular base plate on which a blower and a compressor are mounted,
A heat exchanger disposed on at least a side surface of the base plate, a fan ring having a bell mouth disposed on a front side of the base plate, and the base configured to press the fan ring and the heat exchanger from above. An outer body covered with a plate, and an outdoor unit of a split type air conditioner in which at least a part of a propeller fan of the blower faces the bell mouth, an upper part of the fan ring includes a ceiling side of the outer body. A ceiling reinforcing plate for reinforcement is provided, and a part of the bell mouth is formed on the ceiling reinforcing plate side.

As described above, since the bell mouth is partially formed on the side of the ceiling reinforcing plate, the height of the housing can be maintained without being restricted by the propeller fan diameter or the bell mouth diameter of the blower while maintaining the blowing performance. Can be lower. In some cases, a part of the bell mouth may be formed on the base plate side.

According to a preferred aspect of the present invention, a pair of left and right heat exchangers which are bent substantially in an L-shape such that a part of each end goes around the back side are disposed on both left and right sides of the base plate. Along with the compressor, the compressor is disposed substantially at the center on the rear side of the base plate, and the compressor is surrounded by a partition plate having an opening disposed between the rear-side ends of the heat exchangers. The blower is arranged on the front side of the partition plate via a motor support, and the fan ring is arranged on the front side of the base plate, and the outer shell is formed of the fan ring and the heat exchanger. Covered from above, the ceiling surface of the outer trunk is supported by the partition plate,
The electrical component box and the operation valve mounting board are mounted in the opening of the partition plate.

As a result, the rigidity of the housing can be increased, noise and vibration during operation can be reduced, and the overall weight balance can be improved. Further, in order to further increase the rigidity of the housing, it is preferable to provide the ceiling reinforcing plate with a locking means for the heat exchanger.

In addition, the center of the air blowing grill attached to the front surface of the fan ring is bulged in an arc shape toward the outside, and in response to this, the trailing edge of the blade of the propeller fan is directed toward the center of the grill. By extending the predetermined dimension, the blowing performance can be improved.

If there is no room for attaching the ceiling reinforcing plate and at least a part of the bellmouth on the ceiling side of the bellmouth is cut off, the remaining part of the bellmouth is considered to have a uniform wind speed distribution by the propeller fan. It is preferable to form it into an elliptical shape.

[0016]

Next, an embodiment of the present invention will be described. First, with reference to an exploded perspective view of FIG. 1, a plan perspective view of FIG. 2, and a side perspective view of FIG. 3, basic components included in the outdoor unit according to this embodiment will be described.

The outdoor unit includes a base plate 100 having a substantially rectangular shape, and a pair of left and right heat exchangers 200, 200 disposed on both left and right sides of the base plate 100.
In this embodiment, the base plate 100 is made of a metal plate, and each of the four corners is provided with an installation leg 110 that is convex downward. FIG. 3 shows two of the installation legs 110 arranged at the four corners.

Each of the heat exchangers 200 is bent substantially in an L-shape so that a part of one end thereof goes around the back side of the base plate 100, and in this embodiment, it is symmetrical. That is, one heat exchanger 200 is used for both the left heat exchanger and the right heat exchanger in order to reduce parts costs.

At a substantially central portion on the back side of the base plate 100,
A compressor 300 is provided. Further, a partition plate 400 is provided on the base plate 100 so as to surround the compressor 300. In this embodiment, the partition plate 400 is made of sheet metal, and has an opening 410 disposed between the rear-side ends of the heat exchangers 200.

An electrical component box 430 and an operation valve mounting board 450 are mounted in the opening 410 of the partition plate 400. A blower 550 is attached to the front side of partition board 400 (opposite opening 410 side) via motor support base 500. The blower 550 includes a fan motor 551 and a propeller fan 553.

On the front side of the base plate 100, a fan ring 600 having a bell mouth 610 is disposed at a position facing the propeller fan 553. Fan ring 600
A ceiling reinforcing plate 620 is screwed to the upper part of the ceiling. The outer shell 700 is put on the heat exchangers 200 and 200 and the fan ring 600 in the final assembly process of the base plate 100, and the outlet grill 800 is attached to the front surface of the fan ring 600. When covering the outer shell 700, packing materials 230, 230 are arranged above the heat exchangers 200, 200. Further, although not shown, a similar packing material is disposed above the ceiling reinforcing plate 620.

Referring to FIG. 4, at the end of ceiling reinforcing plate 620, a locking piece 621 is bent downward at a substantially right angle. A locking slit 211 is provided at the upper end corner of 210. By inserting the locking piece 621 into the locking slit 211, the ceiling reinforcing plate 620 and the heat exchanger 200 are connected.

Referring to FIG. 1, female screw holes 212 are provided in, for example, two places in front header plate 210 of each heat exchanger 200. Correspondingly, the fan ring 600
A screw insertion hole 602 is also drilled on the side, and a male screw (not shown) screwed in from the fan ring 600 side,
Each heat exchanger 200 is screwed to fan ring 600.

The rear header plate 220 of the heat exchanger 200
The partition plate 400 is screwed to the end plate 411 at the opening 410. Each of the screws may be a self-tapping screw. In this way, the heat exchangers 200, 200, the fan ring 600, and the partition plate 400 are integrally connected.

The ceiling reinforcing plate 620 is provided to improve the strength against a load from the top surface side.
The ceiling reinforcing plate 620 plays another role. Usually, the bell mouth 610 of the fan ring 600 is formed continuously in an annular shape due to the air blowing performance of the propeller fan 553.

On the other hand, in this embodiment, in order to reduce the height of the outdoor unit, FIG.
00, as shown in FIG.
An arc-shaped complementary concave portion 622 that is continuous with the bell mouth 610 is formed in the ceiling reinforcing plate 620 in order to cut a portion on the upper side of 0 and complement the cut portion.

Thus, the larger-diameter propeller fan 5
53, the height of the outdoor unit can be reduced and the size can be reduced without lowering the air blowing performance. The assembled state of the bell mouth 610 is shown in the perspective view of FIG. In order to lower the height of the outdoor unit,
If the lower part of the bell mouth 610 also needs to be cut, the bell mouth 610 is also provided on the base plate 100 side.
It is sufficient to provide an arc-shaped complementary concave portion that is continuous with.

As another method, when, for example, the ceiling reinforcing plate 620 itself cannot be used due to restrictions on the height dimension and the complementary concave portion 622 of the bell mouth 610 cannot be formed, FIG. As shown in the figure, the bell mouth 610 which is originally formed in a circular shape is changed to an elliptical shape indicated by reference numeral 610a, and the clearance with the propeller fan 553 is adjusted to make the balance of the wind speed in the air blowing direction uniform. You can also plan.

Next, referring additionally to FIG. 8, the partition plate 400 is moved from the base plate 100 to the ceiling surface 71 of the outer shell 700.
It has a height substantially equal to the height to 0, and an upper flange 412 supporting the ceiling surface 710 is formed at the upper end thereof. In addition, a lower flange 415 for obtaining installation stability with respect to the base plate 100 is also formed on the lower end side of the partition plate 400.

In this case, a receiving plate 413 to which the upper end of the motor support 500 is screwed is connected to the upper flange 412. The receiving plate 413 is connected to the motor support base 500.
And a concave portion 414 for positioning with respect to. In addition,
When covering the outer body 700, the packing material is also attached to the upper flange 412, similarly to the heat exchanger 200.

The lower flange 415 has a base plate 100
9 is formed, but preferably, as illustrated in FIG. 9, a locking piece for positioning and screwing is formed by bending a part of the screwing piece 420 obliquely downward toward the base plate 100 side. 421 is formed, and a receiving plate 120 which is a counterpart of the locking piece 421 may be formed on the base plate 100 side correspondingly.

In order to perform more accurate positioning, for example, a diamond-shaped positioning hole 422 is formed in the screwing piece 420, and correspondingly, the positioning hole 422 is formed in the base plate 100 side. Cut-and-raised tongue piece 12 to be fitted
1 may be formed.

Although not shown, a sound insulating material is provided on the inner surface of the partition plate 400. The sound insulating material may be a resin coating film or a foamed resin sheet. Further, in this embodiment, the temperature inside the partition plate 400 is maintained properly and the compressor 3
In order to extend the life of the attached electrical components of
A louver 423 for heat dissipation is formed in a part of 00.

In this embodiment, since the accumulator 310 is attached to the side of the compressor 300, the partition plate 400 has a flat left side wall as illustrated in FIG. It has a left-right asymmetric shape in which the right wall side where the accumulator 310 exists is protruding.

Therefore, the ventilation resistance of the right heat exchanger 200 becomes higher than the ventilation resistance of the left heat exchanger 200,
The left and right heat exchangers have different suction air volumes. Therefore, in the present invention, the heat exchange capacity of the heat exchanger having the larger suction air flow (the left heat exchanger 200 in this example) is changed to the heat exchanger side having the smaller suction air flow (the right heat exchanger 20 in this example).
The heat exchange capacity is set to be larger than the heat exchange capacity of 0) so that the heat exchange capacity is optimized and noise is reduced.

As one of the methods, in this embodiment, as shown in FIG. 2, the refrigerant pipes are arranged, for example, in two rows (two passes) on the left heat exchanger 200 side, and are arranged in one row (1 path) on the right heat exchanger 200 side. Path), but as another method, the fin pitch or fin width of the heat exchanger may be varied, and the number or shape of the slits or louvers provided on the fins of the heat exchanger may be varied. Is also good.

Note that, unlike this embodiment, the accumulator 310 is arranged on the rear side or the front side of the compressor, and the partition plate 400 is made bilaterally symmetrical.
Since the intake air volumes passing through the left and right heat exchangers 200 are substantially equal, the same heat exchanger having the same heat exchange capacity can be used for each heat exchanger. Therefore, the number of parts can be reduced and the cost can be reduced accordingly.

Referring additionally to FIG. 10, motor support base 500 is arranged on the front side of partition plate 400, and supports ceiling surface 710 of outer shell 700 together with partition plate 400 to make the housing rigid. So that the upper end is the partition plate 4
00, and the lower end is fixed to the base plate 100.

In this embodiment, the motor support 50
0 is formed in a ladder shape, and a fan motor 55
One mounting hole 510 is provided. An upper frame 520 is provided on the upper portion of the motor support 500 so as to cover the receiving plate 413 of the partition plate 400. A positioning recess 521 that fits into the recess 414 of the receiving plate 413 is formed substantially at the center of the upper frame 520.
14 and recess 521 are fixed by tapping screws.

The side frame 530 of the motor support base 500 is provided with a spacer 531 which is in contact with the front surface of the partition plate 400 and keeps a constant distance from the partition plate 400 in order to suppress the vibration of the fan motor 551. ing.

In this case, the spacer 531 is
From a plate material that is bent integrally from the
In order to reduce the vibration transmission surface with respect to 00, a convex portion 532 is formed by drawing as shown in FIG.
FIG. 10 shows a spacer 531 on one side frame 530 side.
Although only shown, the other side frame 530 is similarly provided.

Further, a fixing flange 541 for the base plate 100 is continuously provided on the lower frame 540 of the motor support base 500. The fixing flange 541 is bent substantially at a right angle forward from the lower frame 540 so as to come into contact with the base plate 100 in a wide area, and is also moved right and left so as to be wider than the width of the motor support 500. The wings 542 and 542 are provided.

The motor support 500 includes a fixed flange 54
1 and the left and right wing pieces 542 and 542 are screwed to the base plate 100, whereby integration with the base plate 100 is achieved, and vibration of the fan motor 551 is more effectively suppressed.

As described above, the mounting legs 110 (see FIG. 3) for the mounting table are provided at the four corners of the base plate 100. Referring to FIG.
In addition to the installation legs 110, at least three compressor support legs 130 are formed around the compressor 300 by recessing the base plate 100 downward, for example, in a semicircular cross section (gutter shape). It is provided in.

The compressor supporting legs 130 are arranged concentrically around the compressor 300 at equal intervals, and each is formed in an arc shape having a predetermined curvature centered on the compressor 300 in plan view. Is preferred. Compressor support leg 130
Is lower than the mounting feet 110 and the compressor 300
The height of the base plate 100 is set to a height in contact with the installation table due to the bending of the base plate 100 due to the weight of the base plate 100.

With the support legs 130 for the compressor, the vibration of the base plate 100 due to the compressor 300 is suppressed.
Even if the base plate 100 is distorted due to a drop impact at the time of transportation or the like, there is no possibility that the compressor 100 is installed at an angle.

Referring to the rear side perspective view of FIG. 13, the electrical component box 430 and the operation valve mounting board 450 are mounted in the opening 410 of the partition plate 400 so that the electrical component box 430 is arranged in a vertical line. Have been.

The electrical component box 430 includes, as main electrical components,
A terminal (wiring connection part) 431, a capacitor 432 for the compressor, a capacitor 433 for the fan motor, and the like are provided. The operation valve mounting board 450 is provided with a two-way operation valve 451 and a three-way operation valve 452. I have.

According to the present invention, the two-way control valve 451 and the three-way control valve 452 are spaced apart from each other at a predetermined interval in the horizontal direction, and the three-way control valve 452 is located on the upper side, and the two-way control valve 451 is positioned on the upper side. Is also arranged on the lower side, thereby opening the vicinity of the service valve of the three-way operation valve 452 to facilitate connection of a charge hose (not shown). In addition,
It is preferable that the mounting angle of the two-way operation valve 451 be inclined toward the three-way operation valve 452.

On the electrical component box 430 side, the terminal 431 is disposed above the two-way operation valve 451 instead of the three-way operation valve 452 side. By adopting such an arrangement, as shown in FIG. 14, the connection work of the connection pipe CP connected to the indoor unit to the two-way operation valve 451 and the three-way operation valve 452 can be easily performed, and the electric connection can be easily performed. The code CA can also be easily connected to the terminal 431 without being obstructed by the thick pipe connected to the three-way operation valve 452.

Next, the outlet grill 800 attached to the fan ring 600 will be described. In this outdoor unit, for example, as shown in FIG.
The center portion 810 of the grille 00 is outwardly bulged in an arc shape, and the trailing edge of the blade of the propeller fan 533 is extended in accordance with the shape, thereby improving the air blowing performance. Note that the trailing edge of the blade of the propeller fan 533 is an edge located on the downstream side in the blowing direction.

In this embodiment, the propeller fan 5
Reference numeral 33 denotes three blades. FIG. 15A shows one of the blades in a perspective view, and FIG. 15B shows a helical cross section along the line AA. In these figures, the hatched portion is the extension 534 of the propeller fan 533, and the width W1 of the extension 534 along the spiral direction is actually 2
0 mm (1 in width W2 along the axial direction of the propeller fan)
6 mm), and the blowing performance was compared with a propeller fan without an extended portion (Comparative Example).

As a result, as can be seen from the comparison graph of the air volume and the rotation speed in FIG. 16, the air flow amount is increased by 80 m ³ / h in the example of the present invention at the same rotation speed.
According to the noise comparison graph, the noise value is higher by 0.8 dB in the example of the present invention at the same rotation speed. However, according to the air volume-noise comparison graph of FIG. 18, the noise value of the example of the present invention is lower by 0.6 dB at the same air volume. Therefore,
It can be said that the blowing performance was improved in the overall evaluation.

[0054]

As described above, according to the present invention,
A substantially rectangular base plate on which a blower and a compressor are mounted, a heat exchanger disposed on at least a side of the base plate, a fan ring having a bell mouth disposed on a front side of the base plate, and a fan ring And an outer shell covered on the base plate so as to press the heat exchanger from above, wherein an outdoor unit of a split type air conditioner is arranged such that at least a part of a propeller fan of the blower enters the bell mouth. A ceiling reinforcing plate is provided above the fan ring to reinforce the ceiling side of the outer shell, and a part of the bell mouth is formed on the ceiling reinforcing plate side to maintain the blowing performance while maintaining the propeller fan diameter and bell mouth of the blower. The height of the housing can be reduced without being restricted by the diameter.

A pair of left and right heat exchangers which are bent in a substantially L-shape such that a part of each end goes around the back side are disposed on the left and right sides of the base plate formed in a substantially rectangular shape. A compressor is disposed at a substantially central portion on the back side of the base plate, and the periphery of the compressor is surrounded by a partition plate having an opening disposed between the rear side ends of the heat exchangers. A blower is arranged on the front side via a motor support, and a fan ring is arranged on the front side of the base plate.The outer shell is placed over the fan ring and the heat exchanger to suppress the outer shell. Support the torso ceiling surface,
By mounting the electrical component box and the operation valve mounting board inside the opening of the partition plate, it has a high rigidity housing structure, reduces both noise and vibration during operation, and is more efficient and more compact. An outdoor unit of a split type air conditioner is provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an outdoor unit according to an embodiment of the present invention.

FIG. 2 is a plan perspective view of the outdoor unit.

FIG. 3 is a side perspective view of the outdoor unit.

FIG. 4 is an exploded perspective view of a main part showing a structure of a ceiling reinforcing plate and a heat exchanger locking means used in the outdoor unit.

FIG. 5 is a front view of a fan ring used in the outdoor unit.

FIG. 6 is a perspective view showing an assembled state around the fan ring.

FIG. 7 is a front view schematically showing a modification of the fan ring.

FIG. 8 is a perspective view showing a partition plate used in the outdoor unit.

FIG. 9 is a perspective view showing a preferred positioning element of the partition plate.

FIG. 10 is a perspective view showing a state where a motor support is attached to the partition plate.

FIG. 11 is a sectional view of a contact plate provided on the motor support base.

FIG. 12 is a plan view showing a compressor supporting leg formed on a base substrate around the compressor.

FIG. 13 is a rear view showing a state where an electrical component box and an operation valve mounting board are mounted on the partition plate.

FIG. 14 is a rear view similar to FIG. 13 showing a state of piping and wiring.

FIG. 15 is a perspective view and a sectional view showing a preferred example of a propeller fan used in the outdoor unit.

FIG. 16 is a graph showing a comparison between the air flow rate and the rotation speed of the propeller fan.

FIG. 17 is a graph showing a comparison between the number of revolutions of the propeller fan and noise.

FIG. 18 is a graph showing a comparison between air volume and noise of the propeller fan.

FIG. 19 is a schematic plan view showing the internal arrangement structure of a conventional outdoor unit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Base plate 110 Installation leg 130 Compressor support leg 200 Heat exchanger 210 Front header 220 Rear header 300 Compressor 310 Accumulator 400 Partition plate 410 Opening 430 Electrical component box 431 Terminal 450 Operating valve mounting board 451 Two One-way control valve 452 Three-way control valve 500 Motor support base 510 Motor mounting hole 520 Upper frame 530 Side frame 531 Spacer 540 Lower frame 541 Fixed flange 550 Blower 551 Fan motor 553 Propeller fan 600 Fan ring 610 Bell mouth 620 Ceiling reinforcing plate 621 Lock Piece 622 Complementary recess 700 Outer body 710 Ceiling surface 800 Blow-off grill 810 Grill center

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Nobuto Shintani 1116, Suenaga, Takatsu-ku, Kawasaki-shi, Kanagawa Prefecture F-term in Fujitsu General Limited 3L054 BA06 BB03

Claims (6)

[Claims] 1. A substantially rectangular base plate on which a blower and a compressor are mounted, a heat exchanger disposed on at least a side surface of the base plate, and a bell mouth disposed on a front side of the base plate. A split type comprising a fan ring having an outer shell covered on the base plate so as to press the fan ring and the heat exchanger from above, and at least a part of a propeller fan of the blower faces the bell mouth. In an outdoor unit of an air conditioner, a ceiling reinforcing plate for reinforcing a ceiling side of the outer body is provided above the fan ring, and a part of the bell mouth is formed on the ceiling reinforcing plate side. Outdoor unit of split type air conditioner. 2. A pair of left and right heat exchangers, each of which is bent substantially in an L-shape so that a part of each end goes around the back side, is disposed on both left and right sides of the base plate. The compressor is disposed at a substantially central portion of the heat exchanger, and the compressor is surrounded by a partition plate having an opening disposed between rear end portions of the heat exchangers, and a front side of the partition plate. The blower is arranged via a motor support base, the fan ring is arranged on the front side of the base plate, and the outer shell is covered over the fan ring and the heat exchangers, The outdoor unit of a split-type air conditioner according to claim 1, wherein a ceiling surface of the trunk is supported by the partition plate, and an electrical component box and an operation valve mounting board are mounted in an opening of the partition plate. 3. The split-type air conditioner outdoor unit according to claim 1, wherein a part of the bell mouth is formed also on the base plate side. 4. The outdoor unit of a split-type air conditioner according to claim 1, wherein said ceiling reinforcing plate has a locking means for said heat exchanger. 5. An air blowing grill whose central portion is bulged outward in a circular arc shape is attached to a front surface of the fan ring, and a rear edge of a blade of the propeller fan is directed toward the central portion of the grill. The outdoor unit of the split type air conditioner according to any one of claims 1 to 4, wherein the outdoor unit is extended by a predetermined dimension. 6. A substantially rectangular base plate on which a blower and a compressor are mounted, a heat exchanger disposed on a side surface of the base plate, and a bell mouth disposed on a front side of the base plate. A fan ring, including an outer shell covered on the base plate so as to press the fan ring and the heat exchanger from above, at least a part of a propeller fan of the blower is arranged to enter the bell mouth. In the split-type air conditioner outdoor unit, at least a portion of the bellmouth on the ceiling side of the outer body is cut away, and the remaining portion of the bellmouth is made to have a uniform wind speed distribution by the propeller fan. An outdoor unit of a split type air conditioner characterized by being formed in an elliptical shape.