WO2008038632A1

WO2008038632A1 - Outdoor unit for air conditioner

Info

Publication number: WO2008038632A1
Application number: PCT/JP2007/068563
Authority: WO
Inventors: Fumio Ohta; Kouji Kimoto
Original assignee: Daikin Industries, Ltd.
Priority date: 2006-09-27
Filing date: 2007-09-25
Publication date: 2008-04-03
Also published as: JP2008082616A; CN101517325A; JP4542533B2; CN101517325B

Abstract

An outdoor unit for an air conditioner, having improved assemblability and parts commonality. The outdoor unit (1) has a bottom frame (2), a generally L-shaped heat exchanger (3), and a casing (6). The generally L-shaped heat exchanger (3) is disposed on the bottom frame (2). The generally L-shaped heat exchanger (3) extends from the rear face side to the side face side of the outdoor unit. The casing (6) covers at least a side of the heat exchanger (3). The casing (6) has at least either of support parts (10, 11). The support parts (10, 11) are formed integrally with the side of the casing (6) so as to project to the inside of the casing (6). The support parts (10, 11) support the U-shaped tube portions (12) of a heat transmission tube projecting from a side face end of the heat exchanger (3).

Description

Specification

Air conditioner outdoor unit

Technical field

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

Background art

[0002] As described in Patent Document 1, an outdoor unit of an air conditioner that has been used conventionally includes a substantially L-shaped heat exchanger extending from the back side to the side surface, and a substantially L-shaped There is an outdoor unit of an air conditioner provided with a back plate and a tube plate attached to each end of the side plate of the heat exchanger.

In this outdoor unit, in order to fix the approximately L-shaped heat exchanger to the bottom frame of the outdoor unit, a tube plate or a fixture attached to the end of the approximately L-shaped heat exchanger is screwed to the bottom frame. It is fixed by a stop.

Patent Document 1: Japanese Unexamined Patent Application Publication No. 2004-183906

Disclosure of the invention

Problems to be solved by the invention

[0003] However, in the outdoor unit described in Patent Document 1, in order to fix the substantially L-shaped heat exchanger to the bottom frame, it is necessary to screw and fix the tube plate or fixture to the bottom frame. There is a problem that it takes S man-hours.

On the other hand, in the case of an outdoor unit without a tube sheet, a structure in which the heat exchanger is fixed by a bottom frame and a fan motor base is adopted. In such a structure, the specifications of the heat exchanger, for example, air Heat transfer tube force as viewed from the direction of flow ^ Depending on the single-row heat exchanger with only one row or two-row heat exchanger with only two rows of heat transfer tubes, specifications or dimensions of the bottom frame and fan motor base Changes, making it difficult to share parts.

An object of the present invention is to provide an outdoor unit of an air conditioner that can improve assembly workability and can share parts.

Means for solving the problem

[0004] An outdoor unit for an air conditioner according to a first aspect of the present invention includes a bottom frame, a substantially L-shaped heat exchanger, and a casing. And equipped. The substantially L-shaped heat exchanger is disposed on the bottom frame. The abbreviated heat exchanger extends from the back side to the side. The casing covers at least the sides of the heat exchanger. The casing has at least one support. The support portion is integrally formed on the side portion of the casing so as to protrude to the inside of the casing. The support portion supports the U-shaped tube portion of the heat transfer tube protruding from the side end portion of the heat exchanger.

Here, since the casing has at least one support portion for supporting the U-shaped tube portion of the heat transfer tube protruding from the side end portion of the heat exchanger, the side portion of the heat exchanger is shifted to the front side. This can be prevented and the assembly workability is improved.

[0005] An outdoor unit for an air conditioner according to a second aspect of the present invention is the outdoor unit for an air conditioner according to the first aspect, wherein an edge portion on the back side of the bottom frame is raised. The edge portion supports the back side of the heat exchanger so that the side part of the heat exchanger does not shift to the back side.

Here, the edge part on the back side of the bottom frame stands up. Since the edge portion supports the back side of the heat exchanger so that the side portion of the heat exchanger is not shifted to the back side, it is possible to prevent the heat exchanger from shifting to the back side.

[0006] The outdoor unit of the air conditioner of the third invention is the outdoor unit of the air conditioner of the first invention, and the support part has an outer support part and an inner support part. The outer support part supports the outer U-shaped pipe part when two rows of heat exchanger tubes are aligned. The inner support part supports the inner U-shaped tube part when two rows of heat exchanger tubes are aligned. Here, the support portion has an outer support portion that supports the outer U-shaped tube portion and an inner support portion that supports the inner U-shaped tube portion! /, So one row of heat transfer tubes is arranged. However, it can be applied to both a single-row heat exchanger and a two-row heat exchanger with two rows of heat transfer tubes, and the parts can be shared.

The invention's effect

[0007] According to the first invention, it is possible to prevent the side portion of the heat exchanger from shifting to the front side, and the assembly workability is improved.

According to the second invention, it is possible to prevent a problem that the heat exchanger shifts to the back side.

According to the third invention, the present invention can be applied to both the single-row heat exchanger and the double-row heat exchanger, and the parts can be shared. Brief Description of Drawings

FIG. 1 is a plan configuration diagram of an outdoor unit of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a mounting state of the heat exchanger of FIG.

FIG. 3 is a front view showing a mounting state of the heat exchanger of FIG.

FIG. 4 is a side view showing a mounting state of the heat exchanger of FIG.

Explanation of symbols

[0009] 1 outdoor unit

2 Bottom frame

3 Heat exchanger

6 Casing

10 Upper support

11 Lower support

13, 15 Outer support part

14, 16 Inner support part

BEST MODE FOR CARRYING OUT THE INVENTION

[0010] <Configuration of outdoor unit 1 of air conditioner>

The outdoor unit 1 of the air conditioner shown in FIGS.! To 2 includes a bottom frame 2, a substantially L-shaped heat exchanger 3, a rear tube plate 4, a front tube plate 5, and a casing 6. ing. Further, as shown in FIG. 1, the casing 6 accommodates a compressor 7, a fan 8, and a partition plate 9 that spatially partitions the compressor 7 and the fan 8.

The bottom frame 2 is a plate-like member manufactured from a thin metal plate or the like. The edge portion 2a on the back surface side of the bottom frame 2 stands up vertically. The edge portion 2a supports the back side portion 3a of the heat exchanger 3 so that the side surface side portion 3b of the heat exchanger 3 does not shift to the back side.

The substantially L-shaped heat exchanger 3 is disposed on the bottom frame 2. The heat exchanger 3 extends in a substantially L shape from the back side to the side surface. In the present invention, the heat exchanger 3 only needs to have at least one side surface portion 3b orthogonal to the back surface portion 3a. Two side surface portions 3b are disposed on both sides of the back surface portion 3a. Even a U-shaped heat exchanger 3! / The heat exchanger 3 of the embodiment is viewed from the direction in which the air introduced from the side surface and the back surface of the casing 6 flows. This is a single-row heat exchanger in which only the heat transfer tube force rows are arranged.

[0011] The rear tube plate 4 is attached to the end 3c of the back side portion 3a of the heat exchanger 3. The rear tube plate 4 has a plurality of through holes into which the heat transfer tubes of the heat exchanger 3 are inserted. The rear tube plate 4 is fixed to the bottom frame 2 by screwing or the like! /, But it is fixed! / May not be!

The front tube plate 5 is attached to the front end 3d of the side surface portion 3b of the heat exchanger 3! /. The front tube plate 5 has a plurality of through holes into which the heat transfer tubes of the heat exchanger 3 are inserted. The front tube plate 5 is not fixed to the bottom frame 2.

The casing 6 is a housing that covers at least the side surface portion 3b of the side portion of the heat exchanger 3. The casing 6 of the present embodiment has the same bottom area as that of the bottom frame 2 and covers the entire heat exchanger 3. The side portion 6b of the casing 6 is in a positional relationship facing the outside of the side surface portion 3b of the heat exchanger 3. A vent 6c is formed on the side 6b of the casing 6. <Configuration of upper support 10 and lower support 11>

As shown in FIGS. 1 to 4, the casing 6 has an upper support part 10 and a lower support part 11 for supporting the heat exchanger 3.

[0012] The upper support portion 10 and the lower support portion 11 are integrally formed with the side portion 6b of the casing 6 so as to protrude inside the casing 6, and the front side end portion 3d of the side surface portion 3b of the heat exchanger 3 is formed. Supports the U-shaped tube part 12 of the heat transfer tube protruding from it. In the embodiment, the entire casing 6, the upper support portion 10 and the lower support portion 11 are integrally formed by molding or injection molding using a synthetic resin.

Specifically, the upper support portion 10 includes an outer support portion 13 and an inner support portion 14. The outer support portion 13 and the inner support portion 14 each have an elongated annular shape, and can support two U-tube portions 12 respectively. The outer support portion 13 is located outside the casing 6 with respect to the inner support portion 14. The outer support portion 13 supports the two U-shaped tube portions 12 of the heat exchanger 3 in which the heat transfer tube power lines are arranged as viewed from the direction in which the air introduced from the back surface or side surface of the casing 6 flows. In addition, the outer support portion 13 is a case where the heat exchanger 3 is a two-row heat exchanger in which two rows of heat transfer tubes are arranged (as viewed from the direction in which air introduced from the back or side of the casing 6 flows). Supports the two U-tube sections 12 in the outer heat transfer tube row. The inner support portion 14 is transmitted by the heat exchanger 3. In the case of a two-row heat exchanger with two rows of heat tubes, the two U-tube sections 12 of the inner heat transfer tube row are supported.

The lower support part 11 has an outer support part 15 and an inner support part 16. The outer support portion 15 and the inner support portion 16 have a substantially horseshoe shape (Le, Les, or in other words, a U-shape that opens downward), and each has a U-tube portion 12 from above. It can be supported. The outer support portion 15 is located outside the casing 6 with respect to the inner support portion 16. The outer support portion 15 supports the U-shaped tube portion 12 of the heat exchanger 3 in which one row of heat transfer tubes is arranged. Further, the outer support portion 15 supports the U-shaped tube portion 12 of the outer heat transfer tube row when the heat exchanger 3 is a two-row heat exchanger in which two rows of heat transfer tubes are arranged. The inner support portion 16 supports the U-shaped tube portion 12 of the inner heat transfer tube row when the heat exchanger 3 is a two-row heat exchanger in which two rows of heat transfer tubes are arranged.

As described above, since the upper support portion 10 and the lower support portion 11 are integrally formed with the side portion 6b of the casing 6 so as to protrude to the inside of the casing 6, the side portion 3b of the heat exchanger 3 is in front. It will not shift to the side (direction force in the direction of arrow A in Fig. 1, forward side).

[0014] Further, since the heat exchanger 3 is fixed on the bottom frame 2 by the upper support portion 10 and the lower support portion 11, the heat exchanger 3 can be mounted without screwing. It becomes possible. 〔Characteristic〕

(1)

In the outdoor unit 1 of the embodiment, the U-shape of the heat transfer tube is integrally formed on the side of the casing 6 so that the casing 6 protrudes inside the casing 6 and protrudes from the side end 3d of the heat exchanger 3. Since it has the upper support part 10 and the lower support part 11 which support the pipe part 12, the side part 3b of the heat exchanger 3 is the front side (direct force in the direction of arrow A in FIG. 1, the front side). It will not slip.

Moreover, since the heat exchanger 3 is fixed on the bottom frame 2 by the upper support part 10 and the lower support part 11, the heat exchanger 3 can be mounted without screwing. Therefore, the assembly workability is improved.

(2)

In the outdoor unit 1 of the embodiment, the edge portion 2a on the back side of the bottom frame 2 stands up, The edge part 2a supports the rear side part 3a of the heat exchanger 3 so that the side part 3b of the heat exchanger 3 does not shift to the back side. Can be prevented. Further, the heat exchanger 3 is fixed on the bottom frame 2 while being sandwiched between the edge portion 2a of the bottom frame 2 and the upper support portion 10 (and the lower support portion 1 1). It is possible to easily attach the heat exchanger 3 without doing so.

(3)

In the outdoor unit 1 of the embodiment, the upper support portion 10 and the lower support portion 11 are provided with outer support portions 13 and 15 that support the outer U-shaped tube portion 12 and inner support portions that support the inner U-shaped tube portion 12. 14 and 16, so heat exchanger 3 is a one-row heat exchanger with one row of heat transfer tubes or a two-row heat exchanger with two rows of heat transfer tubes! The heat exchanger 3 can be securely fixed by the pair of the upper support portion 10 and the lower support portion 11. Therefore, it is possible to make common parts for fixing the heat exchanger 3. As a result, multi-product production using common parts becomes possible, and the manufacturing cost can be greatly reduced.

[Modification]

(A)

In the embodiment, the force S with which the rear tube plate 4 is screwed to the bottom frame 2, the present invention is not limited to this, the rear tube plate 4 is not screwed or the rear tube plate 4 is omitted. You may do it. Even in this case, since the heat exchanger 3 is fixed on the bottom frame 2 by the upper support portion 10 and the lower support portion 11, the heat exchanger 3 can be mounted without screwing. Assembling workability is improved. Further, both the rear tube plate 4 and the front tube plate 5 may be omitted.

Industrial applicability

The present invention can be applied to an outdoor unit of an air conditioner in which a heat exchanger is disposed on a bottom frame.

Claims

The scope of the claims

[1] Bottom frame (2),

A substantially L-shaped heat exchanger (3) disposed on the bottom frame (2) and extending from the back side to the side surface;

A casing ½) covering at least the side of the heat exchanger (3);

With

The casing (5) is formed integrally with the side portion of the casing (6) so as to protrude to the inside of the casing (6), and is a heat transfer tube protruding from the side end portion of the heat exchanger (3). An air conditioner outdoor unit (1) having at least one support (10, 11) for supporting a U-shaped tube portion.

[2] The rear edge (2a) of the bottom frame (2) is raised,

The edge portion (2a) supports the back side of the heat exchanger (3) so that the side portion of the heat exchanger (3) is not displaced to the back side! /

The outdoor unit (1) according to claim 1.

[3] The support portions (10, 11) include an outer support portion (13, 15) for supporting the U-shaped tube portion on the outside when two rows of heat transfer tubes of the heat exchanger (3) are arranged. An inner support portion (14, 16) for supporting the inner U-shaped tube portion when two rows of heat transfer tubes of the heat exchanger (3) are arranged,

The outdoor unit (1) according to claim 1.