JP3235324B2 - Drain pan mounting structure for air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a drain pan in an air conditioner.

[0002]

2. Description of the Related Art Conventionally, various mounting structures have been proposed as a mounting structure of a drain pan for receiving a drain attached to a surface of a heat exchanger in an air conditioner.
7, 8 and 9 show a typical drain pan mounting structure.

[0003] Drain pan mounting structure shown in FIG.
(Japanese Utility Model Publication No. 3-3861) discloses a drain pan disposed below the casing 2 by projecting outward along both sides of the casing 2 in which the heat exchanger 1 is housed and surrounding the flange 3. The bottom plate 4a is attached to the lower surface 3a of the flange 3 with metal fittings 5 and screws 6.

The drain pan mounting structure shown in FIG. 8 (Japanese Utility Model Publication No. 3-5777) is, as shown in FIG. 8A, a part of the outer surface of a bottom plate 11a of a casing 11 in which a heat exchanger is housed. On the side part, a hook receiving member 12 is provided, and a mounting member 14 is provided on a vertical surface 13 of the casing 11 which is perpendicular to the bottom plate 11a and desires the bottom plate 11a. Then, as shown in FIG.
The hook 16 provided on the inner surface of the side plate 15a is hooked on the hook receiver 12 on the casing 11 side. On the other hand, a mounting plate 17 provided on the upper end of the side plate 15b of the drain pan 15 is screwed to the mounting fixture 14 on the casing 11 side.

[0005] Further, the mounting structure of the drain pan shown in FIG.
The side plate 23a of the drain pan 23 disposed below the casing 22 in which is stored the housing 22 is attached to the side plate 22a of the casing 22 by a hanging bracket 24.

[0006]

However, in the drain pan mounting structure shown in FIG. 7, the drain pan 4 is mounted on the casing 2 with four metal fittings 5 (only two are shown in FIG. 7). Therefore, the number of parts required for installation is large, and the man-hour required for installation is also large. Similarly, in the drain pan mounting structure shown in FIG. 9, the drain pan 23 is mounted on the casing 22 with four hanging brackets 24 (only two are shown in FIG. 9). There is a problem that the number of parts and man-hours are large. The air conditioner is often installed in a corner of a room. At that time, as shown in FIG. 7 and FIG.
In the case where there are attachment points at both ends when attaching to the room 22, there is also a problem that it is difficult to attach / detach the attachment point at the end near the wall of the room.

In the drain pan mounting structure shown in FIG. 8, a hook 16 provided on one side of the drain pan 15 is hooked on the hook receiving member 12 on the casing 11 side, while the hook 16 is provided on the other side of the drain pan 15. It has a simple mounting structure in which the provided mounting plate 17 is screwed to the mounting member 14 on the casing 11 side. Also, the drain discharge position can be changed by changing the inclination direction of the attachment 14 on the casing 11 side. However, the drain port and the joints 18 for connecting the drain port to the drain pipe are connected to both ends of the drain pan 15 so that the drain can be discharged in any direction following the inclination direction of the fitting 14. In this case, it is necessary to provide a total of two parts, one for each, and there is a problem that the number of parts increases.

[0008] Normally, the internal pressure of the casings 2, 11, 22 accommodating the heat exchanger is higher than the external pressure. However, as can be seen in FIGS. 7, 8 and 9, in the conventional drain pan mounting structure, the space between the casings 2, 11, 22 and the drain pans 4, 15, 23 must be closed. Not in. Therefore, the drain blown out from the lower openings of the casings 2, 11, 22 by the air is scattered outside from the space between the casings 2, 11, 22 and the drain pans 4, 15, 23. There's a problem. In order to close the space, a new member for closing is required, and the number of parts is further increased.

Therefore, an object of the present invention is to provide an air conditioner which can close a space between a casing and a drain pan without using special parts, can easily change a drain drain direction, and have a small number of parts and easy installation. An object of the present invention is to provide a drain pan mounting structure for a machine.

[0010]

In order to achieve the above object, a drain pan mounting structure for an air conditioner according to the present invention comprises a housing for accommodating a heat exchanger 33 as illustrated in FIGS. A drain pan mounting structure for an air conditioner in which a drain pan 34 is attached to both side plates 31a, 31a of a casing 31 to be formed. The lower end of each of both side plates 31a, 31a of the casing 31 is formed by being bent outward. A flange 37 having the same shape is provided in line symmetry, and the bottom plate 40 of the drain pan 34 is
4 is inclined downward from one end to the other end, and inside the one end of the drain pan 34, a locking plate 43 having a horizontal portion 43b is provided. In the inside of the other end side, a partition plate 44 having a flange portion 44a capable of closely adhering to a flange 37 provided on the side plate 31a of the casing 31 is provided while vertically partitioning a space in the drain pan 34, The flange 37 of one side plate 31a of the casing 31 is sandwiched between the horizontal portion 43b of the locking plate 43 of the drain pan 34 and the bottom plate 40 of the drain pan 34, and the one end of the drain pan 34 is The flange 44a of the partition plate 44 of the drain pan 34 and the other side plate of the casing 31 are engaged with the one side of the casing 31. 1a flange of 3
7 and fasten with screws, and the drain pan 34
The space between the drain pan 34 and the casing 31 is closed by attaching the other end of the casing 31 to the other side of the casing 31.

[0011]

The flange 37 of one side plate 31a of the casing 31 of the heat exchanger 33 is sandwiched between the horizontal portion 43b of the locking plate 43 provided at one end of the drain pan 34 and the bottom plate 40 of the drain pan 34. The other end of the drain pan 34 is lifted while entering, and the flange portion 44a of the partition plate 44 provided at the other end is connected to the flange 3 of the other side plate 31a of the casing 31.
7 and screwed. Thus, the one end of the drain pan 34 is attached to the one of the casings, while the other end is attached to the other of the casing, and the space between the drain pan 34 and the casing 31 is closed. .

Further, both side plates 31a, 31a,
The flanges 37 formed at the lower ends of the respective portions 31a have the same shape and are provided line-symmetrically. Therefore, while the one end side of the drain pan 34 is attached to the other side of the casing, the other end side is attached to the one side of the casing, whereby the casing 31 of the drain pan 34 is attached.
Is easily changed by 180 degrees.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. FIG. 1 is a perspective view of a main part of an air conditioner to which a drain pan mounting structure of the air conditioner of the present embodiment is applied. In a casing 31 forming a box, a heat exchanger 33 for exchanging heat with air blown out from two fans 32, 32 arranged side by side is housed. A drain pan 34 is disposed below the opening at the bottom of the casing 31 and is attached to the casing 31 only with screws 35 and 35.

FIG. 2 is a cross-sectional view (corresponding to a side view) taken along the line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line BB in FIG.
FIG. Hereinafter, the attachment structure of the drain pan 34 to the casing 31 will be described in detail with reference to FIGS. The upper and lower ends of both side plates 31a, 31a constituting the casing 31 are bent outward to form flanges 36, 37. And
The top plate 38 of the casing 31 is attached to the upper flanges 36, 36.
Are attached at both ends. Here, both side plates 31a, 31a
The lower flanges 37, 37 have the same length and the same outwardly projecting width and are formed line-symmetrically.

The bottom plate 40 of the drain pan 34
Is formed horizontally at one end, while FIG.
As shown in the figure, the center is depressed so as to incline from both sides 40a, 40a toward the center. Further, the amount of depression in the central portion increases from the one end to the other end, and the entire bottom plate 40 is inclined so as to descend from the one end to the other end. . That is, the drain received by the drain pan 34 is
It naturally gathers at the center of the other end and is discharged from the joint portion 41. The drain pan 34 is formed in a symmetrical shape with respect to the center line, as shown in FIG.

As shown in FIG.
On one end side of the side plate 42, a locking plate 43 formed by bending the plate at a right angle is formed such that one portion forming the right angle (hereinafter, referred to as a vertical portion 43a) is vertically arranged, and The part (hereinafter, referred to as a horizontal part 43b) is attached by the attachment part 43c so as to be arranged horizontally. By inserting the lower flange 37 of the side plate 31 a of the casing 31 between the horizontal portion 43 b of the locking plate 43 and the bottom plate 40 of the drain pan 34, the one end of the drain pan 34 is connected to the side plate of the casing 31. It is locked to 31a.

On the other end of the side plate 42 of the drain pan 34, a partition plate 44 which stands vertically and partitions a space inside the drain pan 34 is provided on a first mounting portion 44.
Installed by c. The upper half of the partition plate 44 is bent outward at right angles except for both side portions to form a flange portion 44a, and the remaining portion without being bent forms a second mounting portion 44b. The partition plate 44
The upper surface of the flange portion 44a is tightly attached to the lower surface of the lower flange 37 of the side plate 31a of the casing 31 and fastened with screws 45, while the inner surface of the mounting portion 44b is closely attached to the side plate 31a of the casing 31 and fastened with screws 35. By doing so, the other end of the drain pan 34 is attached to the side plate 31a of the casing 31 and the space inside the drain pan 34 is completely partitioned into the inside of the casing 31 and the outside of the casing 31. However, a cutout 46 is provided at the lowermost part of the partition plate 44 so that the drain falling inside the casing 31 in the drain pan 34 can flow out of the casing 31 through the cutout 46. .

Thus, as shown in FIGS. 2 and 3,
The drain pan 34 is formed by the locking plate 43 and the partition plate 44.
4B, the lower flange 37 of the side plate 31a at the one end of the drain pan 34 comes into close contact with the bottom plate 40 of the drain pan 34, as shown in FIG. The space between the drain pan 34 is closed. On the other hand, the lower flange 37 of the side plate 31a on the other end side of the drain pan 34 is in close contact with the flange portion 44a of the partition plate 44, as shown in FIG. Is closed by the partition plate 44. Therefore, the drain blown out with the air from the lower opening of the casing 31 is:
Instead of being scattered outside the casing 31, they are collected in the central depression of the bottom portion 40, pass through the notch 46, and flow out of the casing 31 in an orderly manner.

Next, the drain pan 34 having the above structure
FIG.
It will be described according to. First, as shown in FIG. 5A, between the horizontal portion 43b of the locking plate 43 provided on the one end side (the right side in the figure) of the drain pan 34 and the bottom portion 40, the one end side of the casing 31 Of the lower flange 37 of the side plate 31a. Next, as shown by an arrow (C), the drain pan 34 is pulled up while pulling the drain pan 34 toward the other end (left side in the figure), and the entire lower flange 37 is locked.
5B, the flange portion 44a of the partition plate 44 and the lower flange 37 of the side plate 31a are brought into close contact with each other while being sandwiched between the bottom plate 3 and the bottom portion 40. The mounting portion 44b and the side plate 31a are brought into close contact with each other. And FIG.
As shown in the figure, the mounting portion 44b and the side plate 31a are fastened with screws 35, while the flange portion 44a and the lower flange 37 are fastened with screws 45.

As described above, according to the drain pan mounting structure of the present embodiment, after the locking plate 43 of the drain pan 34 is hooked on the lower flange 37 of the one side plate 31a, the other portions of the drain pan 34 are attached. The drain pan 34 is removed from the casing 3 in two steps by raising the end side and screwing the partition plate to the side plate 31a on the other end side.
1 can be easily attached.

At this time, the partition plate 44 for attaching the other end of the drain pan 34 to the side plate 31a also has a function of completely dividing the space inside the drain pan 34 into the inside of the casing 31 and the outside of the casing 31. Have. Therefore, in combination with the fact that the bottom portion 40 on the one end side of the drain pan 34 is in close contact with the lower end of the casing 31, the space between the casing 31 and the drain pan 34 can be closed without using any special parts. It is. The only components required at that time are the drain pan 34 and the screws 35 and 45 provided with the locking plate 43 and the partition plate 44, and the drain pan 34 can be attached with a very small number of components.

The lower flange 37 of the side plate 31a at one end of the casing 31 and the lower flange 37 of the side plate 31a at the other end have a width "a",
The distance "b" from the upper end of 1a and its length "c" (see FIG. 4) are formed exactly the same and are formed line-symmetrically. Further, as described above, the drain pan 34 is formed in a shape symmetric with respect to the center line. Therefore,
The drain pan 34 in FIG. 5B can be rotated by 180 degrees with respect to the casing 31 so that the joint 41 of the drain pan 34 is positioned at the one end of the casing 31 as shown in FIG. It becomes possible. At that time, the mounting method can be exactly the same as the above-described method. That is, according to the drain pan mounting structure in the present embodiment, the drain discharge direction can be easily changed without providing two joints.

As described above, in the drain pan mounting structure in this embodiment, the lower flanges 37, 37 having exactly the same dimensions are provided line-symmetrically at the lower ends of both side plates 31a, 31a of the casing 31 accommodating the heat exchanger 33. . On the other hand, the bottom plate 40 of the drain pan 34 is flat so that one end is flat, the center is gradually depressed toward the other end, and the whole is inclined so as to descend from the one end to the other end. Form. Then, a locking plate 43 having a horizontal portion 43b is attached to the one end side of the drain pan 34.
On the other hand, on the other end side, the space inside the drain pan 34 is partitioned into the inside of the casing 31 and the outside of the casing 31, and the lower flange 3 of the side plate 31 a of the casing 31.
A partition plate 44 having a flange portion 44a that can be in close contact with 7 and an attachment portion 44b that can be in close contact with the side plate 31a is attached.
Therefore, according to the drain pan mounting structure in this embodiment, the locking plate 43 and the bottom plate 40 of the drain pan 34 are provided.
After the lower flange 37 of the side plate 31a on the one end side is locked, the other end of the drain pan 34 is pulled up, and the flange portion 44a and the mounting portion 44b of the partition plate 44 are connected to the side plate on the other end side. 31a lower flange 37 and the side plate 31a
Screw the drain pan 34 in two steps
Can be easily attached to the casing 31.

At this time, at one end side, the side plate 3 is located between the locking plate 43 of the drain pan 34 and the bottom plate 40.
The lower end of the side plate 31a is in close contact with the bottom plate 40 of the drain pan 34 with the lower flange 37 of the drain plate 1a interposed therebetween. On the other hand, on the other end side, the flange portion 44a and the mounting portion 44b of the partition plate 44 of the drain pan 34 are in close contact with the lower flange 37 of the side plate 31a and the side plate 31a.
The inside of 4 is partitioned. Therefore, the space between the casing 31 and the drain pan 34 can be closed without using any special parts.

Further, both side plates 31a, 31a,
Lower flanges 37, 3 provided symmetrically at the lower end of 31a
7 is formed in exactly the same shape. Therefore, the lower flange 37 of the side plate 31a on the other end is locked between the locking plate 43 and the bottom plate 40 of the drain pan 34,
The flange portion 44a and the mounting portion 44b of the partition plate 44 of the drain pan 34 are connected to the lower flange 3 of the one side plate 31a.
7 and the side plate 31a. That is, the drain pan 3 with respect to the casing 31
4 can be changed to a direction rotated by 180 degrees. That is, according to the drain pan mounting structure in the present embodiment, by changing the mounting direction of the drain pan 34 to the casing 31, it is possible to provide a joint on both the one end side and the other end side of the drain pan 34, The drain direction of the drain can be easily changed.

Further, the drain pan mounting structure in this embodiment includes only the drain pan 34 to which the locking plate 43 and the partition plate 44 are mounted and the screws 35 and 45.
The drain pan 34 can be attached to the casing 31 with a very small number of parts.

The sectional shape of the bottom plate 40 of the drain pan 34 is V-shaped as shown in FIG. 2, but there is no particular limitation on the sectional shape. In short, the joint 41
It is sufficient if the shape is such that the drains are gathered at the location (1).

[0028]

As is apparent from the above description, the drain pan mounting structure of the air conditioner of the present invention is provided between the horizontal portion of the locking plate provided at one end of the drain pan and the bottom plate of the drain pan. A flange provided at the lower end of one of the side plates of the casing is sandwiched, and the one end of the drain pan is locked to the one of the casing, while a partition plate provided at the other end of the drain pan. Since the flange portion and the flange provided at the lower end of the other side plate in the casing are tightly screwed together, and the other end of the drain pan is attached to the other side of the casing. The space between the drain pan and the casing can be closed. Therefore, it is possible to prevent the drain blown out with the air from the lower opening of the casing from scattering to the outside of the drain pan without using any special parts.

According to the drain pan mounting structure, when the drain pan is mounted on the casing, one side plate of the casing is interposed between the locking plate at one end of the drain pan and the bottom plate of the drain pan. The other end of the drain pan is lifted while holding the flange of the drain pan, and the flange portion of the partition plate at the other end of the drain pan and the flange of the other side plate of the casing are screwed in close contact. The drain pan can be attached to the casing by a simple procedure.

Further, the only components required at that time are the drain pan and the screw to which the locking plate and the partition plate are attached, and the drain pan can be attached to the casing with a very small number of components.

The flanges provided at the lower ends of the two side plates of the casing are provided symmetrically and in the same shape. Therefore, by the same procedure as described above, the one end of the drain pan can be attached to the other of the casing, and the other end of the drain pan can be attached to the one of the casing. That is, according to the present invention, the drain direction of the drain can be easily changed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of an air conditioner to which a drain pan mounting structure for an air conditioner according to the present invention is applied.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is a sectional view taken along the line BB in FIG. 2;

FIG. 4 is a perspective view of the vicinity of a locking plate and the vicinity of a partition plate when a drain pan is attached to a casing.

FIG. 5 is an explanatory diagram of a drain pan mounting procedure according to the drain pan mounting structure of the present invention.

FIG. 6 shows the mounting direction of the drain pan in FIG.
It is explanatory drawing at the time of changing to the direction rotated by 80 degrees.

FIG. 7 is an explanatory view of a conventional drain pan mounting structure.

FIG. 8 is an explanatory view of a conventional drain pan attachment structure different from FIG. 7;

9 is an explanatory diagram of a conventional drain pan attachment structure different from FIGS. 7 and 8. FIG.

[Explanation of symbols]

31 ... casing, 31a ... side plate, 3
3 ... heat exchanger, 34 ... drain pan, 35, 45 ... screw, 37 ... lower flange, 40 ... bottom plate, 43 ... locking plate, 43b ... horizontal part, 44 ... partition plate, 44a ... flange part, 44b ... Attachment part, 46 ... notch part.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-185025 (JP, U) JP-A 54-125146 (JP, U) JP-A 63-194219 (JP, U) JP-A-1 172619 (JP, U) Shokai Sho 54-125149 (JP, U) Jiko Hira 3-5777 (JP, Y2) Jiko Hira 3-3861 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 1/00 361 F24F 1/00 401

Claims (1)

(57) [Claims] 1. A drain pan is provided on both side plates (31a, 31a) of a casing (31) forming a box for housing a heat exchanger (33).
(34) is attached to the drain pan mounting structure of the air conditioner, wherein the lower end of each of both side plates (31a, 31a) of the casing (31) has the same shape flange (37) formed by being bent outward. ) Is provided line-symmetrically, and the bottom plate (40) of the drain pan (34) is inclined so as to descend from one end side to the other end side of the drain pan (34). A locking plate (43) having a horizontal portion (43b) is provided inside the one end of the drain pan (34), while an inside of the drain pan (34) is provided inside the other end of the drain pan (34). In addition to partitioning the space vertically, a flange (44) which can be in close contact with the flange (37) provided on the side plate (31a) of the casing (31).
a) providing a partition plate (44) having a horizontal portion of the locking plate (43) of the drain pan (34);
(43b) and a flange (37) of one side plate (31a) of the casing (31) between the bottom plate (40) of the drain pan (34) and the one end side of the drain pan (34). And the flange (44a) of the partition plate (44) of the drain pan (34) and the flange (37) of the other side plate (31a) of the casing (31). ) And screwed down, and the other end of the drain pan (34) is attached to the other end of the casing (31),
A drain pan mounting structure for an air conditioner, wherein a space between the drain pan (34) and the casing (31) is closed.