JPH08178370A - Outdoor unit for air conditioning equipment - Google Patents

Abstract

PURPOSE: To provide an outdoor unit for an air conditioning equipment which achieves both of better working performance and higher servicing property and moreover, ensures sufficient linking strength in a vertical lamination of outdoor units. CONSTITUTION: A jutting piece 4 of a front link metal 3 provided on the top surface of a lower outdoor unit 1 is inserted into an insertion hole provided in an front end 7 of an installation leg of an upper outdoor unit 2 and fixed. A lower jutting part of a rear link metal 15 is inserted into a top side insertion part of the lower outdoor unit 1 and an upper jutting part thereof into a bottom side insertion part of the upper outdoor unit 2 separately and fixed. A link structure is covered with a decorative cover and an intermediate drain pan is set on the top surface of the lower outdoor unit 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit of an air conditioner that can be stacked vertically.

[0002]

2. Description of the Related Art In the case of stacking a plurality of outdoor units vertically, it has been customary to stack them separately by using a mounting member such as an angle. In addition, since a separate angle or the like is required as described above, there is a problem that workability is deteriorated.

Therefore, as an attempt to solve this problem, there is an outdoor unit for an air conditioner described in Japanese Utility Model Laid-Open No. 6-64034. FIG. 6 is a perspective view showing this outdoor unit. The main body of this outdoor unit comprises a base 41 having legs 46a and 46b and a box 42, and the box 42 is attached to the base 41 with an outer case 44 and a top plate 4.
It consists of 5. And the legs 46a, 46b
Is formed so as to be outside of the side surface of the box body 42, and when the outdoor units are vertically stacked, the box body 42 is sandwiched and supported from both sides. In addition, in order to further enhance safety, the legs 46a, 4
The holes 47 provided in 6b and corresponding screw holes 50 provided on the side surface of the top plate 45 are used to fix the upper and lower outdoor units with screws 48.

[0004]

However, in the outdoor unit of the air conditioner in the above-mentioned conventional example, the box body 42 including the top plate 45 and the outer case 44 is supported by being sandwiched by the legs 46a and 46b from both sides. I am trying. Therefore, there is a problem that it is difficult to remove the outer case 44 from the base 41 in a laminated state, and the serviceability is deteriorated. Although the box 42 is supported by being sandwiched from both sides, it is fixed only by the screw 48 against an external force applied in the vertical direction. Therefore, there is a problem that the connection strength against the upward pulling force, the durability against the corrosion of the screw 48, and the like are not sufficient.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object thereof is to achieve good workability and serviceability when stacking outdoor units vertically. An object is to provide an outdoor unit of an air conditioner that can obtain sufficient connection strength.

[0006]

Therefore, in the outdoor unit of the air conditioner according to claim 1, when a plurality of outdoor units 1 and 2 are vertically stacked, the outdoor unit is provided on the front side of the top plate 9 of the lower outdoor unit 1. The front connecting fitting 3 is provided, and the front connecting fitting 3 and the front end 7 of the installation leg of the upper outdoor unit 2 are connected.

In the outdoor unit for an air conditioner according to a second aspect of the present invention, the front connecting fitting 3 is provided with a protruding piece 4 protruding rearward, and an insertion hole 8 into which the protruding piece 4 can be inserted from the front side. It is characterized in that it is provided at the front end 7 of the installation leg, and the protruding piece 4 of the lower outdoor unit 1 is inserted into and connected to the insertion hole 8 of the upper outdoor unit 2.

Further, in the outdoor unit for an air conditioner according to a third aspect of the present invention, the top side connecting portion 13 is provided on the back side of the top plate 9 of the lower outdoor unit 1 and the back side of the bottom frame 10 of the upper outdoor unit 2 is provided. The bottom side connecting portion 11 is provided, and the top side connecting portion 13 and the bottom side connecting portion 11 are connected by the back side connecting fitting 15.

The outdoor unit of the air conditioner according to claim 4 is
An upper projecting portion 16 is provided on the upper end side of the rear surface connecting fitting 15 and a lower projecting portion 17 is provided on the lower end side thereof so as to project forward, and the lower projecting portion 17 is connected to the top side connecting portion 13 and the bottom side connecting portion 13 is connected. The upper protrusion 16 can be inserted into the portion 11 from the rear side, and the top insertion portion 14 and the bottom insertion portion 1 can be inserted.
2 and the lower protrusion 17 is provided in the lower outdoor unit 1
The upper protrusion 16 is inserted into the bottom insertion portion 14 of the upper outdoor unit 2 and connected to the top insertion portion 14 of the above.

The outdoor unit of the air conditioner according to claim 5 is
The upper protruding portion 16 is characterized in that it is provided so as to be inclined so that its tip end is directed obliquely downward.

An outdoor unit of an air conditioner according to claim 6 is
It is characterized in that a decorative cover 25 is provided to cover the connection structure between the upper outdoor unit 2 and the lower outdoor unit 1.

The outdoor unit of the air conditioner according to claim 7 is
An intermediate drain pan 21 for receiving drain water of the upper outdoor unit 2 is provided on the upper surface of the top plate 9 of the lower outdoor unit 1.

The outdoor unit of the air conditioner according to claim 8 is
The intermediate drain pan 21 is provided with a front projecting portion 22, and further, the front projecting portion 22 is provided with a lower projecting piece 23. The front connecting fitting 3 corresponds to the width of the front projecting portion 22, and the front projecting portion 22 is arranged from above. A notch 5 that can be inserted is provided, the front protrusion 22 is inserted into the notch 5, and the lower protrusion 23 is brought into contact with the front connecting fitting 3 from the front to install the intermediate drain pan 21. There is.

[0014]

In the outdoor unit for an air conditioner according to claim 1, the front connecting metal fitting 3 provided on the front side of the top plate 9 of the lower outdoor unit 1 and the front end 7 of the installation leg of the upper outdoor unit 2 are connected. I am trying. Therefore, the front plate of the casing,
Since the side plates and the like can be connected without being obstructed, serviceability can be improved, and workability can be improved because a separate installation member such as an angle is not required.

Further, in the outdoor unit for an air conditioner according to a second aspect of the invention, the protruding piece 4 provided on the front connecting fitting 3 is inserted into the insertion hole 8 provided at the front end 7 of the installation leg from the front side to be connected. There is. Therefore, it becomes possible to obtain sufficient strength against external force in the vertical direction by these, and it is possible to secure sufficient coupling strength even when the mounting member such as a screw is corroded.

Further, in the outdoor unit of the air conditioner according to the third aspect, the rear surface side of the top plate 9 of the lower outdoor unit 1 and the rear surface side of the bottom frame 10 of the upper outdoor unit 2 are connected. Therefore, since the front plate and the side plate of the casing are not blocked even if the rear side is connected, serviceability can be improved, and in this case also, a separate mounting member such as an angle is not necessary. It is possible to improve workability.

In the outdoor unit for an air conditioner according to a fourth aspect of the present invention, the projecting portions 16 and 17 provided on the rear coupling member 15 are inserted into the rear sides of the outdoor units 1 and 2 from the rear side to be connected. Therefore, it is possible to ensure the strength against the external force in the vertical direction and also ensure the connection strength even when the mounting member such as the screw is corroded.

In the outdoor unit for an air conditioner according to a fifth aspect, the tip of the upper protruding portion 16 of the rear connecting fitting 15 is provided so as to face obliquely downward. Therefore, since the back surface connection fitting 15 can be hooked on the bottom insertion portion 12 during assembly, it is possible to improve the assembly workability.

In the outdoor unit of the air conditioner according to the sixth aspect, since the decorative cover 25 for covering the connection structure is provided,
It is possible to improve the appearance.

In the outdoor unit for an air conditioner according to claim 7, since the intermediate drain pan 21 is provided on the upper surface of the top plate 9 of the lower outdoor unit 1, the drain water of the upper outdoor unit 2 can be effectively drained. It will be possible.

In the outdoor unit of the air conditioner according to the eighth aspect, the front protruding portion 22 of the intermediate drain pan 21 is inserted into the cutout portion 5 of the front connecting fitting 3, and the lower protruding piece 23 is brought into contact with the front surface of the front connecting fitting 3. The intermediate drain pan 21 is installed in contact with each other. Therefore, the positioning of the intermediate drain pan 21 becomes easy, the workability is improved, and the drainage is surely possible.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the outdoor unit of the air conditioner of the present invention will be described in detail with reference to the drawings.

FIG. 3 is an upper perspective view of the lower outdoor unit 1 when the outdoor units are vertically stacked. As shown in the figure, on the front surface side of the top plate 9 of the lower outdoor unit 1, a cross section L is formed so as to extend along the front end thereof.
The character-shaped front connecting fitting 3 is fixed and provided with tapping screws 31 ... Further, when the outdoor unit is not vertically stacked or when it is used as the upper outdoor unit 2, it is not necessary to attach the front connecting fitting 3 to the top plate 9, but even in that case, tapping screws 31 ... Are provided. To prevent rainwater from entering the casing. In the figure, 19 is a front plate and 20 is a side plate.

FIG. 4 shows the installation of the intermediate drain pan 21 in the lower outdoor unit 1 provided with the front connecting fitting 3. As shown in FIG. 3A, the front connecting fitting 3 is provided with a notch 5 corresponding to the front protrusion 22 of the intermediate drain pan 21 and having a width slightly wider than the width thereof. The intermediate drain pan 21 has a front protruding portion 22.
Is installed on the top surface of the top plate 9 so as to be inserted into the cutout portion 5 from above. An enlarged view of this insertion portion indicated by A in the figure is shown in FIG. As shown in this figure (b), at the time of the above-mentioned installation, the drain pan 21 is arranged so that the lower protruding piece 23 provided on the front protruding portion 22 is brought into contact with the front surface of the front connecting fitting 3 from the front. To Further, a drain hose 32 is connected to the intermediate drain pan 21 so that the collected drain water can be appropriately drained.

Next, the upper outdoor unit 2 is connected to the lower outdoor unit 1 assembled as described above.
1A and 1B are views showing this connection. FIG. 1A is a front perspective view and FIG. 1B is a rear perspective view. And the same figure (a)
2B is an enlarged view of the front side connecting structure shown by B in FIG. 2 and FIG. 2 is an enlarged view of the back side connecting structure shown by C in FIG. 1B.
It is shown in (b). As shown in FIGS. 1 (a) and 2 (a), the installation legs 6 are provided on both sides of the lower surface of the upper outdoor unit 2 so as to extend inward in some direction from both ends thereof. The length is slightly shorter than the depth of the outdoor units 1 and 2. Corresponding to the positions where the installation legs 6 and 6 are provided, projecting pieces 4 and 4 are provided on both side ends of the front coupling member 3 so as to project rearward. The front end 7 of the installation leg 6 is provided with an insertion hole 8 into which the protruding piece 4 can be inserted.
The upper outdoor unit 2 is slid from the rear side to insert the projecting piece 4 into the insertion hole 8 from the front side, and further, the front end 7 of the installation leg.
The upper outdoor unit 2 is connected to the lower outdoor unit 1 by sliding it until it comes into contact with the rear surface of the front connecting fitting 3.
Then, the front connecting metal fitting 3 and the front end 7 of the installation leg are fixed by using the tapping screws 31, 31, and both the outdoor units 1,
Connect two.

1 (b) and 2 (b) are views showing the rear side connecting structure as described above. As shown in both figures, bottom side connecting portions 11, 11 are provided at both end sides of the rear surface of the bottom frame 10 of the upper outdoor unit 2 so as to project somewhat rearward. Then, on the both sides of the back surface of the top plate 9 of the lower outdoor unit 1, at the positions corresponding to the lower side of the bottom side connecting portions 11, 11, similarly projecting somewhat backward, the top side connecting portion 13, 13 are provided. The bottom-side connecting portion 11 and the top-side connecting portion 13 are connected from the rear by a rear connecting metal fitting 15, and a lower projecting portion 17 protruding forward is provided at a lower end of the rear connecting metal fitting 15 and an upper end thereof. Are provided with upper projecting portions 16 each of which has a tip directed obliquely downward and projecting forward, and the lower projecting portion 1 is provided on the ceiling side connecting portion 13.
A top insertion portion 14 into which 7 can be inserted, and a bottom insertion portion 12 into which the upper protruding portion 16 can be inserted are provided in the bottom side connection portion 11, respectively. The upper protrusion 16 is connected to the bottom insertion portion 12 of the upper outdoor unit 2.
And the lower protrusion 17 is inserted into the upper insertion portion 14 of the lower outdoor unit 1 from the rear to connect the outdoor units 1 and 2. Then, the lower end side of the rear connecting metal fitting 15 is fixed to the ceiling side connecting portion 13 of the lower outdoor unit 1 using the tapping screw 31, and the both outdoor units 1 and 2 are connected from the rear side.

FIG. 5 shows how the decorative cover 25 is attached to the connecting structure of the outdoor units 1 and 2 connected as described above. First, the front decorative cover 25a is attached from the front so as to cover the front coupling member 3, and is fixed to the side surface of the installation leg 6 of the upper outdoor unit 2 by using the tapping screws 31 from both sides. And then the side cover 25b,
25b, the intermediate projecting piece 33 is attached to the mounting hole 35 provided in the installation leg 6, and the front end projecting piece 34 is attached to the front decorative cover 25.
Insert into each of the square holes (not shown) of a and attach the mounting legs 6 from both sides.

In the connecting structure as described above, on the front side thereof, the front connecting metal fitting 3 provided on the upper surface of the top plate 9 of the lower outdoor unit 1 and the front end 7 of the installation leg of the upper outdoor unit 2 are connected, and the rear surface. On the side, the back side connecting fittings 15 connect the top side connecting portion 13 provided on the back surface of the top plate 9 of the lower outdoor unit 1 and the bottom side connecting portion 11 provided on the back surface of the bottom frame 10 of the upper outdoor unit 2. There is. Therefore, since there is no obstruction to the front plate 19 or the side plate 20 and no connection is made by using them, the front plate 19 and the side plate 20 are removed in a state where the outdoor units 1 and 2 are vertically stacked, and services such as maintenance are performed. Work can be performed easily.
Further, since it is not necessary to separately provide an installation stand as in the conventional case, installation work can be easily performed.

Further, in the front side connecting structure, the protruding piece 4 protruding rearward is inserted into the front end 7 of the mounting leg from the front side, and in the rear side connecting structure, the upper protruding portion 16 protruding downward and the lower side. The protrusion 17 is inserted into the bottom side connecting portion 11 and the top side connecting portion 13 from the rear side so that both the outdoor units 1, 2
I am trying to connect. Therefore, the connection strength with respect to an external force applied in the vertical direction such as an upward pulling force is improved, and sufficient and reliable connection strength can be secured even when the tapping screws 31 ... Corrode. Further, the upper protruding portion 16 is provided so that its tip is directed obliquely downward. Therefore, this upper protrusion 1
By simply inserting 6 into the bottom insert 12,
The back surface connecting fitting 15 can be stably hooked on the bottom side connecting portion 11, and the subsequent fixing with the tapping screw 31 can be facilitated. Then, the back side connection fitting 15 is connected to the bottom side connection section 11 of the upper outdoor unit 2 not only from the upper side by the upper side protruding section 16 provided so that its tip is directed obliquely downward, but also from the front and back sides. Since it is also regulated from the direction, the tapping screw 31 should be fixed to the ceiling side connecting portion 13 of the lower outdoor unit 1 by one.
Only a book is sufficient, and it is possible to reduce the cost by reducing the number of parts and improve the assembling workability.

The connecting structure of the upper and lower outdoor units 1 and 2 is as follows.
Since it is covered with the makeup cover 25, the appearance can be improved. And this makeup cover 25 is for the front 2
5a, 25b for side surfaces, the installation leg 6 of the upper outdoor unit 2
It can be attached to. Therefore, makeup cover 2
The front plate 19 or the side plate 20 can be freely detached even in the state in which 5 is provided, and the serviceability can be improved.

The arrangement of the upper outdoor unit 2 on the upper surface of the lower outdoor unit 1 is restricted by the projecting piece 4 of the front connecting fitting 3 and the insertion hole 8 of the front end 7 of the installation leg so that the positions of the upper and lower outdoor units 2 in the both side end directions. At the same time, the front position of the front connecting fitting 3 is regulated by the abutment of the front end 7 of the mounting leg on the rear surface of the front connecting fitting 3. Therefore, the positioning can be easily performed, and the front plate 19 and the side plate 20 of both the outdoor units 1 and 2 can be connected by the decorative cover 25 to provide an excellent appearance.

Further, such easy and reliable positioning is effective for reliable drainage of the upper outdoor unit 2. That is, in the upper outdoor unit, since the top plate 9 of the lower outdoor unit 1 is located near the lower portion of the bottom frame 10, it is difficult to perform drainage drainage from below using a drain socket as usual. Therefore, the intermediate drain pan 21 is installed on the upper surface of the lower outdoor unit 1 to receive and drain the drain water from the drain drain hole provided in the bottom frame 10 of the upper outdoor unit 2. At this time, the intermediate drain pan 21 needs to be arranged at a position below the drain drain hole of the upper outdoor unit 2, so that the intermediate drain pan 21 has the front protruding portion 2 thereof.
2 and the notch 5 of the front connecting fitting 3 bring the both side positions in contact with each other, and the lower projecting piece 23 abuts from the front of the front connecting fitting 3 to restrict the rear position and to position the upper surface of the lower outdoor unit 1. To make it easier. Since the upper outdoor unit 2 is also positioned on the upper surface of the lower outdoor unit 1 as described above, the drain water dropped from the drain drain hole can be reliably received and drained by the intermediate drain pan 21.

Although the specific embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments. For example, the specific shapes of the front connecting fitting 3 and the rear connecting fitting 15 are as follows. Various modifications can be implemented within the scope of the present invention.

[0034]

According to the outdoor unit of the air conditioner of the first aspect, the front connecting fitting provided on the front side of the top plate of the lower outdoor unit and the front end of the installation leg of the upper outdoor unit are connected. There is. Therefore, since the front plate and the side plate of the casing can be connected without being blocked, the serviceability can be improved, and the installation work such as the angle is not required, and the workability can be improved. Become.

Further, in the outdoor unit for an air conditioner according to a second aspect of the present invention, the projecting piece provided on the front connecting fitting is inserted from the front into the insertion hole provided at the front end of the installation leg for connection. Therefore, it becomes possible to obtain sufficient strength against external force in the vertical direction by these, and it is possible to secure sufficient coupling strength even when the mounting member such as a screw is corroded.

Further, in the outdoor unit of the air conditioner according to the third aspect, the rear side of the top plate of the lower outdoor unit and the rear side of the bottom frame of the upper outdoor unit are connected. Therefore, even if the back side is connected, the front plate of the casing,
Since the side plates and the like are not blocked, serviceability can be improved, and in this case as well, a separate installation member such as an angle is not required, so that workability can be improved.

In the outdoor unit for an air conditioner according to a fourth aspect of the present invention, the projecting portion provided on the rear coupling fitting is inserted into the rear side of the outdoor unit from the rear side to be connected. Therefore, it is possible to ensure the strength against the external force in the vertical direction and also ensure the connection strength even when the mounting member such as the screw is corroded.

In the outdoor unit of the air conditioner according to the fifth aspect, the tip of the upper protruding portion of the rear connecting fitting is provided so as to face obliquely downward. Therefore, since the back surface connection fitting can be hooked on the bottom insertion portion during assembly, it is possible to improve assembly workability.

In the outdoor unit for an air conditioner according to the sixth aspect, since the decorative cover for covering the connection structure is provided, the appearance can be improved.

In the outdoor unit of the air conditioner according to the seventh aspect, since the intermediate drain pan is provided on the upper surface of the top plate of the lower outdoor unit, it is possible to effectively drain the drain water of the upper outdoor unit.

In the outdoor unit of the air conditioner according to the present invention, the front portion of the intermediate drain pan is inserted into the cutout portion of the front connecting metal fitting, and the lower protruding piece is brought into contact with the front surface of the front connecting metal fitting to form the intermediate drain pan. I am trying to install it.
Therefore, the positioning of the intermediate drain pan is facilitated, the workability is improved, and the drainage is surely possible.

[Brief description of drawings]

FIG. 1 is a perspective view showing a connection structure of an outdoor unit according to an embodiment of the present invention, (a) showing a front structure and (b) showing a rear structure.

FIG. 2 is an enlarged view of a main part of the connection structure of the outdoor unit, in which (a) shows a front surface structure and (b) shows a rear surface structure.

FIG. 3 is an exploded perspective view showing how the front mounting member is attached to the outdoor unit.

4A and 4B are views showing the attachment of the intermediate drain pan to the outdoor unit, wherein FIG. 4A is an exploded perspective view and FIG.

FIG. 5 is an exploded perspective view showing how the decorative cover is attached to the outdoor unit.

FIG. 6 is a perspective view showing an outdoor unit in a conventional example.

[Explanation of symbols]

 1 Lower Outdoor Unit 2 Upper Outdoor Unit 3 Front Connecting Metal Fitting 4 Projecting Piece 5 Notch 7 Front End of Installation Leg 8 Insertion Hole 9 Top Plate 10 Bottom Frame 11 Bottom Connecting Part 12 Bottom Inserting Part 13 Top Connecting Part 14 Top side insertion part 15 Rear connecting metal fitting 16 Upper side protruding part 17 Lower side protruding part 21 Intermediate drain pan 22 Front protruding part 23 Lower protruding part 25 Decorative cover

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Yoshiaki Okubo Yoshiaki Okubo 1000-2 Otani, Okamoto-cho, Shiga Prefecture Daikin Industry Co., Ltd. Shiga Works (72) Inventor Hiroshi Nakamura 1000 Otani, Okamoto-cho, Kusatsu-shi, Shiga Prefecture No. 2 Shiga Works of Daikin Industries, Ltd.

Claims (8)

[Claims] 1. When stacking a plurality of outdoor units (1) (2) vertically, a front connecting metal fitting (3) is provided on the front side of a top plate (9) of the lower outdoor unit (1), An outdoor unit for an air conditioner, characterized in that the front connecting fitting (3) and the front end (7) of the installation leg of the upper outdoor unit (2) are connected. 2. The front connecting fitting (3) is provided with a protruding piece (4) protruding rearwardly, and an insertion hole (8) into which the protruding piece (4) can be inserted from the front side is provided on the mounting leg. The protruding piece (4) of the lower outdoor unit (1) is provided at the front end (7), and the insertion hole (8) of the upper outdoor unit (2) is provided.
The outdoor unit of the air conditioner according to claim 1, wherein the outdoor unit is inserted into the air conditioner for connection. 3. The lower outdoor unit (1) is provided with a top connecting portion (13) on the back side of a top plate (9), and a bottom is provided on the back side of a bottom frame (10) of the upper outdoor unit (2). A side connecting part (11) is provided, and the top side connecting part (13) and the bottom side connecting part (11) are connected by a back side connecting metal fitting (15). The outdoor unit of the air conditioner. 4. The upper protruding portion (16) is provided on the upper end side of the back connecting metal fitting (15), and the lower protruding portion (17) is provided on the lower end side thereof.
Each of them is provided so as to project forward, and the top side connecting portion (1
3) The lower protrusion (17) is attached to the bottom connecting portion (11).
The upper protrusion (16) can be inserted from the rear side into the top side insertion part (14) and the bottom side insertion part (1).
2) are provided, the lower protrusion (17) is provided on the top insertion portion (14) of the lower outdoor unit (1), and the upper protrusion (16) is provided on the bottom side of the upper outdoor unit (2). Insert (1
The outdoor unit for an air conditioner according to claim 3, wherein the outdoor unit is inserted into the connection unit 2) to be connected. 5. The outdoor unit for an air conditioner according to claim 4, wherein the upper protrusion (16) is provided so as to be inclined so that a tip thereof is directed obliquely downward. 6. The air conditioner according to claim 1, further comprising a decorative cover (25) for covering a connection structure between the upper outdoor unit (2) and the lower outdoor unit (1). Outdoor unit. 7. An intermediate drain pan (21) for receiving drain water of the upper outdoor unit (2) is provided on the upper surface of the top plate (9) of the lower outdoor unit (1). The outdoor unit of the air conditioner of any of 6. 8. The intermediate drain pan (21) is provided with a front projecting portion (22), the front projecting portion (22) is further provided with a lower projecting piece (23), and the front connecting fitting (3) is projecting forward. Corresponding to the width of the portion (22), a notch (5) into which the front protrusion (22) can be inserted from above is provided, and the front protrusion (22) is inserted into this notch (5) to cause the downward protrusion. The outdoor unit for an air conditioner according to claim 7, wherein the piece (23) is brought into contact with the front connecting fitting (3) from the front side to install the intermediate drain pan (21).