JP2011007364A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner of a structure capable of regulating the movement of inner heat exchange parts by a simple constitution during the conveyance of an outdoor unit.SOLUTION: The air conditioner has a multiple row type heat exchanger 12 arranged on a bottom plate 21 of the outdoor unit in which the heat exchanger is formed of the plurality of heat exchange parts laminated and bent in a L-shape. In the air conditioner, one end of the heat exchanger 12 is fixed to the bottom plate via a tube plate and an inner lower part of the other end 12L bent in the L-shape is fixed to the bottom plate 21 by a pressing member 51 so as to be pressed outward.

Description

  The present invention relates to an outdoor unit of an air conditioner including a heat exchanger in which a plurality of heat exchange units are stacked.

In general, there is known an air conditioner including a multi-row heat exchanger formed by laminating a plurality of heat exchange portions on a bottom plate of an outdoor unit and bending it into an L shape (for example, Patent Document 1, Patent) Reference 2). In this type, one end of the multi-row heat exchanger is fixed to the bottom plate of the outdoor unit through a vertically long tube sheet, and the other end side bent in the L shape is The heat exchange part located outside is fixed to the bottom plate via a vertically long or short tube plate.
Japanese Utility Model Publication 4-52596 Japanese Patent Laid-Open No. 2002-165852

However, in the conventional one, the outer heat exchange part is fixed to the bottom plate, but the inner heat exchange part is not fixed. There was a fear of moving.
On the other hand, when the inner heat exchanging part is fixed, the inner heat exchanging part also requires a tube sheet, which complicates the assembly process of the heat exchanging part, increases the number of parts, and complicates parts management. Become.
Accordingly, an object of the present invention is to provide an air conditioner that has a structure that can eliminate the problems of the conventional techniques described above and that can regulate the movement of the inner heat exchanging unit when the outdoor unit is transported with a simple configuration. There is to do.

In order to solve the above problems, the present invention provides an air conditioner in which a multi-row heat exchanger formed by laminating a plurality of heat exchange portions and bending it in an L shape is disposed on a bottom plate of an outdoor unit. One end of the heat exchanger is fixed on the bottom plate through the tube plate, and fixed to the bottom plate by a pressing member so as to press the inner lower portion of the other end bent to the L shape outward. It is characterized by that.
According to this configuration, one end of the heat exchanger is fixed on the bottom plate via the tube plate, and the pressing member is used to press the inner lower portion of the other end bent in an L shape outward. Since it was fixed on the bottom plate, the inner and outer heat exchanging portions can be closely fixed not only at one end of the heat exchanger but also at the other end. Therefore, it is possible to avoid a situation in which the inner and outer heat exchanging parts move separately, and without using a tube plate member for fixing the inner and outer heat exchanging parts separately, the inner heat during the outdoor unit transportation can be achieved with a simple configuration. The movement of the exchange unit can be restricted.

In the above-described configuration, the other end may be pressed outward by the pressing member and held between the pressing member and a side surface of the bottom plate of the outdoor unit. According to this configuration, the other end portion of the heat exchanger is sandwiched between the pressing member and the side surface of the bottom plate of the outdoor unit, and the close contact degree of the inner and outer heat exchange portions and the supporting force of the other end portion are improved. Can do.
Further, in the above configuration, the plurality of heat exchange units may be band-stopped at the other end. According to this configuration, the other end is fixed only by the pressing member and the band, and the heat exchanger can be easily attached or detached.
In the above configuration, the pressing member may integrally include a support groove portion that supports a bend pipe of an inner heat exchange portion and a fixing portion that is fixed to a side surface of the bottom plate of the outdoor unit. According to this configuration, it is possible to avoid an increase in the number of parts, and it is easy to ensure the dimensional accuracy between the support groove portion and the fixed portion.

  ADVANTAGE OF THE INVENTION According to this invention, a movement of an inner side heat exchange part at the time of conveyance of an outdoor unit can be controlled with a simple structure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
<First Embodiment>
In FIG. 1, reference numeral 10 denotes an outdoor unit of an air conditioner. The outdoor unit 10 is installed outside and includes a casing 11 having a substantially rectangular parallelepiped box shape.
The outdoor unit 10 is an apparatus that constitutes an air conditioner in combination with an indoor unit (not shown). The outdoor unit 10 is connected to the indoor unit through a refrigerant pipe to form a refrigeration cycle circuit, and the refrigerant flows through the refrigeration cycle circuit. Thus, heat exchange with the outdoor air enables indoor air conditioning such as cooling and heating. In addition, the directions such as up and down and front and rear and right and left described below indicate directions when the outdoor unit 10 is viewed from the front side with the outdoor unit 10 installed.

2 and 3 are perspective views showing the internal configuration of the outdoor unit 10, and FIG. 4 is an exploded perspective view showing the housing 11 of the outdoor unit 10 together with the peripheral configuration.
As shown in FIG. 2 and FIG. 3, the outdoor unit 10 includes a steel plate partition plate 22 erected on a steel plate bottom plate 21 constituting a part of the housing 11. The housing 11 is partitioned into a heat exchange chamber A and a machine room B. The partition plate 22 is fixed to the bottom plate 21 with a fastening member such as a screw.
The heat exchange chamber A has an L shape in top view and a vertical width along a short side 21L1 (see FIG. 4) on one side (left side) of the bottom plate 21 and a long side 21L2 (see FIG. 4) on the back side. The outdoor heat exchanger 12 having a constant is arranged. In addition, an outdoor blower 14 is disposed on the front side of the outdoor heat exchanger 12 in the heat exchange chamber A via a motor support 13 (see FIG. 2).

The motor support 13 extends vertically on the front side of the outdoor heat exchanger 12 and supports the motor of the outdoor blower 14 at a substantially central position in the vertical direction. The motor support 13 has plate-like flange portions 13A and 13B at the upper and lower ends thereof, and is fixed to the housing 11 via the flange portions 13A and 13B.
More specifically, the upper flange portion 13 </ b> A has a shape that is bent substantially horizontally toward the outdoor heat exchanger 12 located on the back side, and extends to the left and right of the outdoor unit 10. Is fixed to the upper surface side of the outdoor heat exchanger 12 with a fastening member such as a screw. The flange portion 13B at the lower end has a shape bent substantially horizontally toward the front surface side, and is fixed to the bottom plate 21 with a fastening member such as a screw. That is, the motor support 13 is integrally connected to the outdoor heat exchanger 12 and fixed to the bottom plate 21, and also functions as a support member that supports the outdoor heat exchanger 12 on the front side.

In the machine room B, a compressor, an accumulator, a refrigerant pipe, and the like constituting a part of the refrigeration cycle circuit are arranged. The machine parts such as the compressor have a sound insulation performance and the like arranged in the machine room B. The cover member 34 is provided.
In addition, an electrical unit 16 that houses a control board for controlling the air conditioner is disposed above the partition plate 22. The electrical unit 16 has a horizontally long shape so as to support the control board in a horizontal state, and is disposed so as to straddle the heat exchange chamber A and the machine room B in the housing 11.
That is, as shown in FIGS. 2 and 3, the partition plate 22 is formed at a height lower than the upper surface of the outdoor heat exchanger 12, and the horizontally-long electrical unit 16 is disposed on the upper portion of the partition plate 22. Thus, the electrical unit 16 is disposed so as to straddle the heat exchange chamber A and the machine room B at substantially the same height as the upper surface of the outdoor heat exchanger 12.

  Thus, since the electrical unit 16 straddles the heat exchange chamber A and the machine room B, the electrical unit 16 functions as a part of a partition plate that partitions the heat exchange chamber A and the machine room B, and the electrical unit 16 A large electronic board 80 (not shown) can be accommodated. Further, by providing the heat sink 17 on the heat exchange chamber A side in the electrical unit 16, the heat of the electrical board 80 and the like can be efficiently released to the outside using the air blown by the outdoor blower 14. The electrical unit 16 includes an electrical case (frame member) 81 serving as a support frame that supports the electrical board 80, and a lid member 82 that is connected to the upper part of the electrical case 81 and covers the electrical board 80 from above. . In addition, the electrical case 81 is provided with a guide wall 84B in which a sponge-like sealing material (not shown) for partitioning the heat exchange chamber A and the machine room B at the position of the electrical case 81 is disposed.

As shown in FIG. 4, the casing 11 of the outdoor unit 10 covers one bottom plate 21 that constitutes a floor member of the heat exchange chamber A and the machine room B, and both the left and right sides of the heat exchange chamber A and the machine room B. Side plates 23 and 24 made of left and right steel plates, a steel plate front plate 25 covering the front surfaces of the heat exchange chamber A and the machine room B, and a steel plate top plate 26 covering the upper parts of the heat exchange chamber A and the machine room B have. The front plate 25 and the top plate 26 are integrally formed and are formed in a substantially L shape in a side view. In FIG. 1, reference numeral 11 </ b> A is a pedestal that supports the bottom plate 21 from below, and reference numeral 11 </ b> B is a grill that closes the blower opening provided in the front plate 25.
The cover parts 21, 23 to 26 constituting the housing 11 are connected to each other by fastening members such as screws. More specifically, the bottom plate 21 includes a bottom plate portion 21A formed in a substantially horizontal plate shape, and a rising edge 21B (bottom plate 21) bent upward from the outer peripheral edge (four sides 21L1 to 21L4) of the bottom plate portion 21A. The rising edge 21B extends along the four sides 21L1 to 21L4 of the bottom plate portion 21A and overlaps the left and right side plates 23, 24 and the front plate 25, and a female screw hole is formed in the overlapping portion. The left and right side plates 23, 24 and the front plate 25 are connected to each other by fastening screws (not shown) from the outside of the left and right side plates 23, 24 and the front plate 25 to the respective female screw holes.
Also, with respect to the other cover parts 23 to 26 other than the bottom plate 21, a female screw hole is provided in the inner part of the overlapping portion that overlaps with the other adjacent cover parts 23 to 26, and a male screw (not shown) is provided from the outside in the overlapped state. The cover parts 23 to 26 are connected to each other by being fastened.

There is no cover part on the back side of the heat exchange chamber A in the housing 11, and the outdoor heat exchanger 12 disposed on the bottom plate 21 is exposed to the outside.
As shown in FIG. 4, the side plate 23 on the heat exchange chamber A side is provided with a large number of openings 23 </ b> A over substantially the entire surface, and the side of the outdoor heat exchanger 12 positioned inside the side plate 23 (described later). The short side portion 12X) is covered with the side plate 23, and heat exchange is possible with the outside air flowing inside and outside through the opening 23A.
Further, the side plate 24 on the machine room B side is formed in an L shape in a top view integrally including a side surface covering part 24A that covers the side surface of the machine room B and a back surface covering part 24B that covers the back surface of the machine room B. Yes. The back cover portion 24B extends from the back side to a position that covers the end portion on the machine room B side of the outdoor heat exchanger 12 arranged on the bottom plate 21 (one end portion on the refrigerant in / out side) from the back side, The outdoor heat exchanger 12 is connected via a tube plate 35 fixed to one end 12R of the heat exchanger 12.

The side surface covering portion 24A includes a pair of upper and lower openings 24A1 and 24A2, and these openings 24A1 and 24A2 are covered with a cover plate 27 having a handle portion 27A.
Here, the upper opening 24A1 exposes an electronic component connecting portion (terminal plate or connector portion) 18A (see FIG. 3) arranged on the base plate 18 connected to the electrical unit 16, and the outside (indoor unit or This is an opening for connecting wiring from an external power source, and the wiring from the outside is passed through the cover plate 27 having the handle portion 27A. Further, the lower opening 24A2 is an opening for exposing a pipe connection part to the refrigerant pipe in the machine room B and connecting the refrigerant pipe to the indoor unit. Here, in FIG. 4, the code | symbol 28 is a small cover member attached to the piping connection part side. A handle portion is also provided on the side plate 23 facing the side plate 24.

Next, the outdoor heat exchanger 12 and its fixing structure will be described.
The outdoor heat exchanger 12 is a multi-row heat exchanger in which a plurality (two in this embodiment) of fin-tube heat exchangers 31 and 32 are stacked in the thickness direction.
Each of the heat exchange units 31 and 32 is a single row heat exchanger in which tubes extending in a substantially horizontal direction are arranged in a vertical row, and U-bend pipes 33 made of steel pipes connecting the upper and lower tubes at both ends thereof are vertically arranged. Connected in a row. Further, in the outdoor heat exchanger 12, a refrigerant inlet / outlet is provided at the end 12R on the machine room B side, and the end 12L on the heat exchange chamber A side is provided with this refrigerant and flows the refrigerant flowing in the tube. A refrigerant folding portion that flows to the end 12R side through the U-bend pipe 33 is formed.

Although the outdoor heat exchanger 12 of this configuration has an L shape, it does not overlap after the heat exchange portions 31 and 32 are bent into an L shape, but has a flat shape extending linearly. The heat exchanging portions 31 and 32 are overlapped in the thickness direction, the positions of one end portion 12R on the refrigerant exit / entry side are aligned and connected by the same tube plate 35, and the other end portion 12L on the refrigerant return side is defined as a free end. In this state, the end 12L side is bent at the same time to form an L shape.
Here, the other end portion 12L bent in an L shape is used as a free end in the process of bending into an L shape, and the heat exchanging portion 31 located outside and the heat exchanging portion 32 located inside. This is because there is a difference in the bending (curvature and curve length) of the bent portion 12M and the end portions 12L of the heat exchange portions 31 and 32 are not aligned at the same position. That is, the end portion 12L of the outdoor heat exchanger 12 has a smaller curvature and a longer curve length as the outer heat exchanging portion 31, and therefore the outer heat exchanging portion 31 is shifted to a position deeper than the inner end portion 32L. A stepped portion is formed.

Further, the outdoor heat exchanger 12 has an end portion 12L side bent in an L shape with respect to the bent portion 12M as a short straight portion, and an end portion 12R side which is not bent is a long straight portion. Hereinafter, the short end portion 12L side is referred to as a short side portion 12X, and the long end portion 12R side is referred to as a long side portion 12Y.
The outdoor heat exchanger 12 has the short side portion 12X along the short side 21L1 on the left side (heat exchange chamber side) of the bottom plate 21 and the long side portion 12Y along the long side 21L2 on the back side of the bottom plate 21. And placed on the bottom plate 21.

As shown in FIG. 4, the bottom plate 21 is integrally formed with a concave portion 21 </ b> C that is recessed downward over a substantially L-shaped region on which the outdoor heat exchanger 12 is placed, and from the bottom surface of the concave portion 21 </ b> C. Since the heat exchanger support 21D that supports the outdoor heat exchanger 12 from below is integrally formed at a higher position, the outdoor heat exchanger 12 is mounted on the bottom plate 21 in a state of floating from the bottom surface of the recess 21C. Placed.
That is, the concave portion 21C functions as a drain receiver that receives drain from the outdoor heat exchanger 12, and the drain accumulated in the drain receiver can be quickly and quickly discharged to the outside via a drain hole or drain hose (not shown). It is configured so that it can be discharged.
In addition, a plurality of the heat exchanger support bases 21D are provided, and in this configuration, the first support base 21D1 that supports the end 12R of the long side portion 12Y of the outdoor heat exchanger 12 from below, and the outdoor heat exchanger 12 are provided. A second support base 21D2 that supports a substantially intermediate position between the two end portions 12R and 12L from below, and a third support base 21D3 that supports the end 12L on the short side of the outdoor heat exchanger 12 from below. Yes.

In the outdoor heat exchanger 12, one end 12R on the long side 12Y side is fixed to the side plate 24 on the machine room B side through a single tube plate 35, and the other end on the short side 12X side is fixed. The outdoor heat exchanger 12 is stably fixed on the bottom plate 21 by fixing the end portion 12L to the bottom plate 21.
In this case, since the single tube plate 35 connects one end portions of the plurality of heat exchanging portions 31 and 32, one end portion of all the heat exchanging portions 31 and 32 is fixed to the side plate 24 together. Is done. Since the side plate 24 is fixed to the bottom plate 21, one end of all the heat exchange units 31 and 32 is fixed to the bottom plate 21 via the side plate 24.
For this reason, it is possible to sufficiently secure the fixing strength of the one end portion 12R of the outdoor heat exchanger 12, and it is possible to avoid a situation in which one of the end portions of the heat exchange portions 31 and 32 is moved by vibration.
The vertically long tube plate 35 and the side plate 24 are fixed by using a plurality of fastening members such as screws at intervals in the vertical direction, and the tube plate 35 is positioned on the back side of the tube plate 35. The side plate 24 is fixed to the back cover portion 24B of the side plate 24. Further, the tube plate 35 may be fixed to the bottom plate 21 with a fastening member such as a screw.

On the other hand, the other end portion 12L of the outdoor heat exchanger 12 bent into an L shape has a stepped portion inside and outside when bent into an L shape, so that the pipe connecting the inner and outer heat exchange portions 31, 32 A plate member (connecting member) is not provided. That is, if an attempt is made to provide a tube plate member for connecting the inner and outer heat exchange portions 31 and 32 on the other end 12L side, the shape of the tube plate member becomes complicated, leading to an increase in component costs. The tube sheet member which connects the heat exchange parts 31 and 32 is not provided.
In this case, if the tube plate is attached only to the end portion 32L of the outer heat exchanging portion 32 and fixed to at least one of the bottom plate 21 and the side plate 23 via the tube plate, the outer heat exchanging portion Only the end 32L of 32 is fixed. However, the inner heat exchanging portion 31 is not fixed, and since the heat exchanging portion 31 does not press the outer heat exchanging portion 32 from the inner side, only the outer heat exchanging portion 32 is fixed. Then, when the outdoor unit 10 is transported, the inner heat exchanging unit 31 may move due to vibration during transport.

In order to prevent the vibration of the inner heat exchanging portion 31, a method of attaching a tube plate to the inner heat exchanging portion 31 and fixing it to the housing 11 is conceivable. It is not desirable that the assembling process of 32 is complicated and the number of parts is increased, and that the assembling is complicated and the number of parts is increased only for countermeasures against vibrations when the outdoor unit is transported.
Therefore, in the present embodiment, for the other end portion 12L of the outdoor heat exchanger 12 bent in an L shape, a bottom plate is used by using a single pressing member 51 that presses the inner lower portion of the end portion 12L outward. 21 is fixed.

FIG. 5 is a perspective view showing a state in which the end 12L of the outdoor heat exchanger 12 is fixed by the holding member 51, FIG. 6 is a view of the holding member 51 as viewed from above together with the peripheral configuration, and FIG. 3 is a perspective view of a pressing member 51. FIG.
As shown in FIGS. 5 and 6, the pressing member 51 rises from the end portion 31 </ b> L of the inner heat exchanging portion 31 in the outdoor heat exchanger 12 placed on the bottom plate 21 and the front side of the bottom plate 21 in the outdoor unit 10. It is formed as a small component that fits in the space SP between the rising edge 21B.
More specifically, as shown in FIG. 7, the pressing member 51 includes a first plate portion (fixed portion) 52 that rises upward, and a front-rear direction (substantially horizontal direction) of the first plate portion 52 and the outdoor unit 10. A second plate portion (contact plate portion) 53 that rises upward with an interval, and a third plate portion (connection portion) 54 that connects the first plate portion 52 and the second plate portion 53, These are integrally formed by bending a single plate member having rigidity such as a metal plate. The pressing member 51 has the first plate portion 52 directed toward the rising edge 21B of the bottom plate 21 and the third plate portion 54 directed toward the end portion 31L of the heat exchanging portion 31 to thereby form the space SP. Inserted.

The first plate portion 52 has a through hole 52A that communicates with a through hole (not shown) formed in the rising edge 21B of the bottom plate 21, and a male screw 61 (see FIG. 6) passed through the communicated through hole and The nut 62 (see FIG. 6) is fixed to the rising edge 21B. More specifically, as shown in FIG. 6, the rising edge 21 </ b> B is integrally provided with a protruding portion 21 </ b> B <b> 1 that protrudes toward the back side toward the end portion 31 </ b> L side of the heat exchanging portion 31 placed on the bottom plate 21. The first plate portion 52 is fixed to the protruding portion 21B1.
If the protruding portion 21B1 in which a part of the rising edge 21B protrudes is formed in this way, the strength is improved as compared with the case where the rising edge 21B has a simple flat plate shape. By fixing the member 51, the supporting force of the pressing member 51 on the bottom plate 21 can be improved.

  In addition, the second plate portion 53 functions as a pressing portion that presses the inner lower portion of the inner heat exchanging portion 31 when the first plate portion 52 is fixed to the rising edge 21 </ b> B of the bottom plate 21. More specifically, the second plate portion 53 includes an end pressing portion 53A that contacts the lower portion of the end portion 31L of the heat exchanging portion 31 and presses against the back side of the outdoor unit 10, and an upper surface from the end pressing portion 53A. An inner lower pressing portion 53B that is bent at an angle of about 90 degrees as viewed and contacts the inner lower portion in the vicinity of the end portion 31L of the heat exchanging portion 31 and presses the left side of the outdoor unit 10 is provided. Thus, when the pressing member 51 is fixed to the bottom plate 21, the end portion 31 </ b> L of the inner heat exchanging portion 31 is pressed to the back side and the left side of the outdoor unit 10 with reference to the fixing portion (projecting portion 21 </ b> B <b> 1).

In this case, as shown in FIG. 6, the bent portion 12M of the outdoor heat exchanger 12 and the outer heat exchange portion 32 in the long side portion 12Y are located on the back side of the outdoor unit 10 in the inner heat exchange portion 31. . For this reason, if the end portion 31L of the inner heat exchanging portion 31 is pressed against the back side of the outdoor unit 10, the inner heat exchanging portion 31 presses the outer heat exchanging portion 32 at the bent portion 12M and the long side portion 12Y. .
Further, as shown in FIG. 6, the short side portion 12X of the outdoor heat exchanger 12 and the outer heat exchange portion 32 in the bent portion 12M are located on the left side of the outdoor unit 10 in the inner heat exchange portion 31, If the end portion 31L of the inner heat exchanging portion 31 is pressed to the left side of the outdoor unit 10, the inner heat exchanging portion 31 also presses the outer heat exchanging portion 32 in the short side portion 12X and the bent portion 12M.
That is, by pressing the end portion 31L of the inner heat exchanging portion 31 to the back side and the left side of the outdoor unit 10 with the holding member 51, the inner side heat in the long side portion 12Y from the short side portion 12X via the bent portion 12M. The exchanging part 31 can press the outer heat exchanging part 32 to be in close contact with each other, and avoids that only one of the heat exchanging parts 31 and 32 is moved by vibration during conveyance on the other end 12L side. can do.

Further, the end pressing portion 53 </ b> A of the second plate portion 53 is formed with a support groove portion 55 into which the U-bend pipe 33 provided at the lowermost portion of the inner heat exchanging portion 31 is inserted. The support groove 53C is provided with a rib 55A extending along the periphery of the groove into which the U-bend pipe 33 is inserted. The rib 55A supports the U-bend pipe 33 and reinforces the strength of the end pressing part 53A. .
Further, the pressing member 51 is integrally provided with a rib 56 that continues across the first plate portion 52, the third plate portion 54, and the second plate portion 53, and each portion of the pressing member 51 is reinforced by the rib 56. Thus, the strength of the entire pressing member 51 is reinforced.

Further, in the present embodiment, the inner heat exchanging portion 31 presses the outer heat exchanging portion 32 on the other end 12L side, so that the outer heat exchanging portion 32 has the rising edge 21B (bottom plate 21) of the bottom plate 21. The inner and outer heat exchanging portions 31 and 32 are sandwiched between the rising edge 21 </ b> B and the pressing member 51.
More specifically, the rising edge 21B is provided with a back-side contact portion 71 that protrudes inward (front side) from the back surface of the outdoor unit 10 and contacts the outer heat exchanging portion 31 in the long side portion 12Y. A left side abutting portion 72 that protrudes inward from the left side surface of the outdoor unit 10 and abuts against the outer heat exchanging portion 31 in the short side portion 12X is provided. The movement of the part 32 to the back side and the left side is restricted.
In other words, in this configuration, the pressing member 31 presses the inner heat exchanging portion 31 toward the outer heat exchanging portion 32, so that the pressing force to the back side and the left side also acts on the outer heat exchanging portion 32. Then, with this pressing force, the back surface side and the left side surface side of the outer heat exchanging portion 32 abut on the back surface side contact portion 71 and the left side surface side contact portion 72.

Therefore, the inner and outer heat exchanging portions 31 and 32 can be sandwiched between the back surface side contact portion 71 and the pressing member 51 and between the left side surface contact portion 72 and the pressing member 51. Sufficient support force for the inner and outer heat exchanging portions 31 and 32 on the other end 12L side can be secured.
In this case, the back surface side contact portion 71 and the left side surface contact portion 72 with which the outer heat exchanging portion 32 abuts are formed with the rising edge 21B partially protruding inward. The strength of 72 can be improved, and the supporting force of the outdoor heat exchanger 12 can be improved.
Thus, if the inner lower part of the other end 12L of the outdoor heat exchanger 12 is pressed outward by the pressing member 71 and fixed on the bottom plate 21, the supporting force required on the upper side of the other end 12L is It's small. For this reason, in this configuration, as shown in FIG. 2, a band is formed by a binding band 65 that passes between the inner and outer heat exchanging portions 31 and 32 through the left and right U-bend pipes 33 above the pressing member 51 at the other end 12L. Sufficient support force can be ensured with the simple connection structure stopped.
In this case, the inner and outer heat exchanging portions 31 and 32 are band-stopped on the other end portion 12L side and connected via the tube plate 35 on the one end portion 12L side, so even before the pressing member 51 is attached, The inner and outer heat exchanging portions 31 and 32 are not separated, and the attaching and removing operations of the outdoor heat exchanger 12 can be facilitated.

As described above, in the present embodiment, one end portion 12R of the outdoor heat exchanger 12 is fixed on the bottom plate 21 via the tube plate 35 connecting the inner and outer heat exchange portions 31 and 32, and L Since it fixed on the baseplate 21 with the pressing member 51 so that the inner lower part of the other end part 12L bent in the shape of a letter may be pressed outside, not only one end part 12R of the outdoor heat exchanger 12 but also the other end Also in the part 12L, the inner and outer heat exchange parts 31 and 32 can be closely fixed. Accordingly, it is possible to avoid the situation where the inner and outer heat exchanging parts 31 and 32 move separately, and without using a tube plate member for separately fixing the inner and outer heat exchanging parts 31 and 32, the outdoor unit The movement of the inner heat exchanging portion 31 during conveyance can be restricted.
In addition, in this configuration, the other end 12L of the outdoor heat exchanger 12 is pressed outward by the pressing member 51, and is sandwiched between the pressing member 51 and the side plate of the outdoor unit 10. The degree of adhesion of the heat exchange units 31 and 32 and the supporting force on the bottom plate 21 can be further improved.

Further, in this configuration, the other end portion 12L of the outdoor heat exchanger 12 is band-stopped between the plurality of heat exchanging portions 31 and 32, so that the other end portion 12L is fixed only by the pressing member 51 and the binding band 65. Therefore, the work of attaching and removing the outdoor heat exchanger 12 is easy.
Further, since the holding member 51 has the support groove portion 55 that supports the U bend pipe 33 of the inner heat exchanging portion 31, the inner lower portion of the inner heat exchanging portion 31 is more stably supported by the amount of support of the U bend pipe 33. It can support, and the inner lower part of the heat exchange part 31 can be stably pressed outside. The pressing member 51 is in contact with the first plate portion (fixed portion) 52 fixed to the bottom plate 21 and the inner lower portion of the heat exchanging portion 31 and the second plate portion (contact portion) having the support groove portion 55. 52 is integrally provided, an increase in the number of parts can be avoided, and the dimensional accuracy of the first plate portion 52 and the second plate portion 53 can be easily ensured.

Second Embodiment
FIG. 8 is a perspective view of a pressing member 51 used in the air conditioner of the second embodiment. In addition, the part similar to the pressing member 51 demonstrated in 1st Embodiment attaches | subjects the same code | symbol, abbreviate | omits description, A different part is demonstrated in detail.
The pressing member 51 is a small component that is fixed to the bottom plate portion 21 </ b> A of the bottom plate 21. More specifically, the pressing member 51 has an inner lower pressing portion 53B that abuts on the inner lower portion of the inner heat exchanging portion 31 and is formed in a large plate shape that extends to the bottom plate portion 21A of the bottom plate 21. A first plate portion (fixed portion) 51 that is bent substantially horizontally from the lower portion of the portion 53B toward the inner side of the inner heat exchanging portion 31 is provided.
The first plate portion 51 is provided with a through hole 52A penetrating vertically, and is fixed to the bottom plate portion 21A via a through hole 52A with a fastening member such as a screw.

In addition, the pressing member 51 includes an end pressing portion 53A in which the second plate portion 53 for pressing the inner lower portion of the inner heat exchanging portion 31 is in contact with the lower end portion 31L of the heat exchanging portion 31, and the inner inner portion. In addition to the lower pressing portion 53B, there is provided a vertical plate-shaped locking portion 53D that bends from one side portion of the end pressing portion 53A and locks to the outer lower portion in the vicinity of the end portion 31L of the heat exchanging portion 31. .
By providing this locking part 53D, the second plate part 53 holds the heat exchange part 31 inside between the locking part 53D and the inner lower pressing part 53B, and holds the heat exchange part 31 securely. can do. Therefore, by fixing the pressing member 51 to the bottom plate portion 21A, the pressing member 51 can be fixed so as to press the inner lower portion of the heat exchanging portion 31 outward.

<Third Embodiment>
FIGS. 9A, 9B and 10 are perspective views showing the pressing member 51 used in the air conditioner of the third embodiment together with the peripheral configuration.
The pressing member 51 is a component that is fixed to the protruding portion 21B1 formed on the rising edge 21B of the bottom plate 21 as in the first embodiment.
The pressing member 51 has a first plate portion (fixed portion) 51 fixed to the protruding portion 21B1, and the first plate portion 51 extends upward to a position higher than the rising edge 21B to exchange heat inside. It is formed in a vertical plate shape extending to a position higher than the U bend pipe 33 provided at the lowermost part of the portion 31.

A vertical plate-shaped third plate portion 54 that is bent at an angle of approximately 90 degrees and extends toward the inner surface of the inner heat exchanging portion 31 is formed from one side portion of the first plate portion 51. The lower half portion of the third plate portion 54 constitutes an inner lower pressing portion 53B that extends as it is and contacts the inner lower portion of the inner heat exchanging portion 31.
An end pressing portion 53A (see FIG. 10) that bends at an angle of approximately 90 degrees and contacts the end 31L of the inner heat exchanging portion 31 is formed from the upper half of the third plate portion 54. The pressing portion 53A abuts between the lowermost U-bend tube 33 and the upper U-bend tube 33 while escaping the U-bend tube 33 via the escape groove 57 that escapes the lowermost U-bend tube 33. Secure the contact area.
Further, similarly to the second embodiment, the end pressing portion 53A is bent from one side portion of the end pressing portion 53A and is locked to an outer lower portion in the vicinity of the end portion 31L of the heat exchanging portion 31. A locking portion 53D having a shape is provided, and the heat exchanging portion 31 is securely held by the pressing member 51.
Therefore, the inner lower portion of the heat exchanging portion 31 can also be pressed outward by fixing the pressing member 51 to the bottom plate 21.

  The best mode for carrying out the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and various modifications and changes can be made based on the technical idea of the present invention. . For example, in the above-described embodiment, the heat exchanger 12 in which the two heat exchange units 31 and 32 are stacked has been described. There may be. In this case as well, by pressing the inner lower portion of the heat exchanger 12 outward with the pressing member 51, it is possible to prevent any heat exchange part from moving due to vibration during the conveyance of the outdoor unit. Moreover, although the binding band 65 is used for the band stop, the present invention is not limited thereto, and a belt, a string, or the like may be used.

It is an external view of the outdoor unit of an air conditioner. It is a perspective view which shows the internal structure of an outdoor unit from the heat exchange chamber side. It is a perspective view which shows the internal structure of an outdoor unit from the machine room side. It is a disassembled perspective view which shows the housing | casing of an outdoor unit with a periphery structure. It is a perspective view which shows the state which fixed the edge part of the outdoor heat exchanger with the pressing member. It is the figure which looked at the pressing member from upper direction with the periphery structure. It is a perspective view of a pressing member. It is a perspective view of the pressing member used for the air conditioner of 2nd Embodiment. (A) is a figure which shows the pressing member used for the air conditioner of 3rd Embodiment with a periphery structure, (B) is a figure which shows the state which fixed the edge part of the outdoor heat exchanger with the pressing member. is there. It is a figure which shows the edge part press part of a pressing member with a periphery structure.

DESCRIPTION OF SYMBOLS 10 Outdoor unit 11 Case 12 Outdoor heat exchanger 14 Outdoor blower 16 Electrical unit 21 Bottom plate 21A Bottom plate part 21B Standing edge (side surface of bottom plate)
22 Partition plate 23, 24 Side plate 25 Front plate 26 Top plate 31, 32 Heat exchange part 33 U bend pipe (bend pipe)
35 Tube plate 51 Holding member 52 First plate portion (fixed portion)
53 Second plate (contact plate)
53A End pressing portion 53B Inner lower pressing portion 54 Third plate portion (connecting portion)
55 Support groove portion 65 Binding band 71 Back side contact portion 72 Left side surface contact portion A Heat exchange chamber B Machine room

Claims (4)

In an air conditioner in which a multi-row heat exchanger formed by laminating a plurality of heat exchange parts and bending in an L shape is arranged on the bottom plate of an outdoor unit,
One end of the heat exchanger is fixed on the bottom plate via a tube plate, and fixed to the bottom plate with a pressing member so as to press the inner lower portion of the other end bent in the L shape outward. An air conditioner characterized by   2. The air conditioner according to claim 1, wherein the other end is pressed outward by the pressing member and is held between the pressing member and a side surface of a bottom plate of the outdoor unit.   The air conditioner according to claim 1 or 2, wherein the plurality of heat exchanging portions are band-stopped at the other end portion.   4. The apparatus according to claim 1, wherein the pressing member integrally includes a support groove portion that supports a bend pipe of an inner heat exchanging portion and a fixing portion that is fixed to a side surface of a bottom plate of the outdoor unit. The air conditioner according to one item.

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