WO2014091800A1

WO2014091800A1 - Outdoor machine for air-conditioner

Info

Publication number: WO2014091800A1
Application number: PCT/JP2013/073148
Authority: WO
Inventors: 久保野　俊行; 寛之陣内
Original assignee: 三菱電機株式会社
Priority date: 2012-12-10
Filing date: 2013-08-29
Publication date: 2014-06-19
Also published as: EP2930441A4; CN203704184U; EP2930441A1; JP2014115023A; US20150316279A1; CN103868166A

Abstract

An outdoor machine for an air-conditioner, comprising: a case having an opening in the rear surface side thereof; and a heat exchanger having a flat area formed in a planar shape, and housed inside the case such that the flat area is exposed from the opening on the rear surface side of the case. A side edge section of the opening on the rear surface side is provided at a position facing the flat area, and is folded towards the heat exchanger side so as to fill in a gap between the side edge section and the heat exchanger.

Description

Air conditioner outdoor unit

The present invention relates to an outdoor unit of an air conditioner, and particularly to an outer structure of the outdoor unit.

In an outdoor unit of an air conditioner, an L-shaped heat exchanger having an L-shaped cross section has been proposed in order to reduce the size while ensuring a heat exchange amount. Usually, this L-shaped heat exchanger is accommodated in the housing so as to face one side surface of the outdoor unit and the surface on which the suction port of the outdoor unit is formed (surface on the suction port side). Here, a recent outdoor unit of an air conditioner may have a structure in which a suction port is formed on the back surface, a panel facing the suction port is eliminated, and a heat exchanger is exposed to the outside.

In such an outdoor unit, a gap is generated between the side edge (edge part) of the housing and the curved surface of the heat exchanger, and fingers or the like are inserted into this gap, or the side edge of the rear panel. Fingers may be touched. Therefore, in order to prevent the insertion of fingers or the like into the gap, it has been proposed to perform a bending process on the side edge portion of the back panel (see, for example, Patent Document 1). In Patent Document 1, the side edge portion of the back panel faces the curved surface portion, and the side edge portion is bent inward (to the heat exchanger side), whereby the side edge portion of the back panel and the heat exchanger are It is disclosed to narrow a gap generated between the two.

JP 2012-87996 A

By the way, it is desired that the bottom plate of the housing is made common so that both the L-shaped heat exchanger and the flat plate heat exchanger can be mounted. When a flat plate type heat exchanger is mounted on a panel in which the side edge of the panel is located on the curved surface portion of the heat exchanger as in Patent Document 1, a gap is generated between the panel and the heat exchanger. Thus, there is a demand for a structure that can ensure safety even when a flat plate heat exchanger is mounted as well as an L-shaped heat exchanger.

The present invention has been made to solve the above problems, and in an outdoor unit in which either an L-shaped heat exchanger or a flat plate heat exchanger can be mounted, the L-shaped heat exchanger or the flat plate heat It aims at providing the outdoor unit of the air conditioner which can ensure safety even if any of the exchangers is mounted.

An outdoor unit of an air conditioner according to the present invention has a housing having an opening on the back side and a planar area formed in a flat shape, and the planar area is exposed from the opening on the back side of the housing. A heat exchanger housed in the body, and the side edge of the opening on the back side is provided at a position facing the planar region and is bent toward the heat exchanger.

According to the outdoor unit for an air conditioner according to the present invention, the side edge of the housing is provided at a position facing the plane region of the heat exchanger and is bent inward, so that an L-shaped heat exchange is performed. Safety can be ensured even when either a heat exchanger or a flat plate heat exchanger is mounted.

It is a schematic perspective view which shows embodiment of the outdoor unit of the air conditioner of this invention. It is a perspective view which shows an example of the housing | casing of the outdoor unit of FIG. It is a schematic perspective view which shows an internal structure at the time of carrying an L-shaped heat exchanger in the outdoor unit of FIG. It is an upper surface schematic diagram which shows an internal structure in case the L-shaped heat exchanger is mounted in the outdoor unit of FIG. It is a schematic diagram which shows the periphery site | part of the back part in the outdoor unit of FIG. It is a schematic diagram which shows the periphery site | part of the side edge part of the opening of FIG. 5A. It is a schematic perspective view which shows an internal structure at the time of mounting a flat type heat exchanger in the outdoor unit of FIG. It is an upper surface schematic diagram which shows an internal structure at the time of mounting a flat type heat exchanger in the outdoor unit of FIG. It is a perspective view which shows another example of the housing | casing in the outdoor unit of FIG.

Hereinafter, embodiments of an outdoor unit of an air conditioner of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic perspective view showing an embodiment of an outdoor unit of an air conditioner of the present invention, and FIG. 2 is a perspective view showing an example of a housing 100A of the outdoor unit 100 of FIG. An outdoor unit 100 of the air conditioner of FIG. 1 is surrounded by a casing 100A constituted by a top panel 1, an outer panel 2, a side panel 3, and a bottom plate 4, and includes an upper panel 1 and an outer panel. 2. The side panel 3 is assembled on the bottom plate 4. A flange is provided on the upper part of the outer panel 2 and the side panel 3, and the top panel 1 is attached to the flange. Similarly, the bottom plate 4 is also provided with a flange, and the outer panel 2 and the side panel 3 are fixed to the flange with bolts or the like.

Further, the outer panel 2 has a shape in which a front part 2A, a side part 2B, and a back part 2C are integrally formed. Here, the back surface portion 2C covers a part of the back surface side of the housing 100A, and an opening 100B for exposing the heat exchanger 10 is formed on the back surface side of the housing 100A. In addition, in order to improve the ventilation property of the heat exchanger 10, the width | variety of the opening 100B is formed wider than the width | variety of the back part 2C.

The casing 100A is an L-shaped heat exchanger 10 having a flat area 10a, a curved area 10b, and a side area 10c shown in FIGS. 2 to 5, and a flat formed only by the flat areas shown in FIGS. Any of the mold heat exchangers 210 can be mounted. That is, the bottom plate 4 is made common so that both the L-shaped heat exchanger 10 and the flat heat exchanger 210 can be mounted. Hereinafter, the case where the L-shaped heat exchanger 10 is mounted and the case where the flat heat exchanger 210 is mounted will be described separately.

First, the case where the L-shaped heat exchanger 10 is mounted as a heat exchanger of the outdoor unit 100 will be described. 3 is a schematic perspective view showing the internal structure of the outdoor unit 100 on which the L-shaped heat exchanger 10 is mounted, and FIG. 4 is a schematic top view showing the internal structure of the outdoor unit 100 of FIG. As shown in FIGS. 3 and 4, the interior of the outdoor unit 100 is partitioned into a blower chamber WR and a machine chamber MR by a separator 5. A compressor 6, a refrigerant pipe 7, an electrical box (control box) 8 and the like are disposed on the machine room MR side, and an L-shaped heat exchanger 10, a blower 11 and the like are provided on the blower room WR side. It has been. The compressor 6 and the L-shaped heat exchanger 10 are installed on the bottom plate 4.

The compressor 6 sucks the refrigerant, compresses it into a high temperature and high pressure state, and conveys it to the refrigerant circuit via the refrigerant pipe 7. The electrical component box (control box) 8 accommodates control means for controlling the operation of the outdoor unit 100.

The L-shaped heat exchanger 10 exchanges heat between the outside air and the refrigerant, and functions as an evaporator during heating operation and as a condenser during cooling operation. The L-shaped heat exchanger 10 includes, for example, a heat transfer tube through which a refrigerant passes, and fins for increasing the heat transfer area between the refrigerant flowing through the heat transfer tube and the outside air, and a planar region 10a and a curved region 10b and side surface region 10c. The L-shaped heat exchanger 10 is disposed in the housing 100A such that the planar region 10a is exposed from the opening 100B on the back side of the housing 100A and the side surface region 10c faces the side surface 2B of the outer panel 2. Is done. The side surface portion 2B is provided with a vent hole 2X for improving the air permeability to the side surface region 10c (see FIGS. 1 and 2). Note that a gap is provided between the side surface portion 2B of the outer panel 2 and the side surface region 10c of the L-shaped heat exchanger 10 so as not to contact each other. A blower 11 that blows air is held by the blower holding unit 20 on the front side of the L-shaped heat exchanger 10.

FIG. 5A is a schematic diagram showing a peripheral portion of the back surface portion in the outdoor unit 100 of FIG. 4, and FIG. As shown in FIGS. 5A and 5B, the side edge 2D of the opening 100B on the back surface side is bent with respect to the plane region 10a side of the L-shaped heat exchanger 10, and the plane of the L-shaped heat exchanger 10 is The gap with the region 10a is narrowed. Specifically, the gap between the back surface portion 2C and the planar region 10a is spaced apart by a distance D1, while the side edge portion 2D, the planar region 10a, and the distance D10 are narrower than D1 (D1> D10). The bent portion is formed so that the distance D10 is, for example, 5 to 10 mm. Further, since the air permeability improves as the area where the back surface portion 2C and the planar region 10a face each other is smaller, the side edge portion 2D may be provided on the boundary 10x between the planar region 10a and the curved region 10b. Good.

As described above, the side edge 2D of the back surface 2C of the outer panel 2 is bent toward the flat region 10a so that the gap between the side edge 2D and the L-shaped heat exchanger 10 is narrowed. It is possible to prevent a finger or the like from entering the door and to ensure safety. Furthermore, since the side edge portion 2D is bent inward, it is not necessary to cover the side edge portion 2D with a resin or the like even if burrs or the like are generated on the side edge portion 2D, thereby ensuring safety.

Next, the case where the flat heat exchanger 210 is mounted as a heat exchanger of the outdoor unit 100 will be described. FIG. 6 is a schematic perspective view showing the internal structure of the outdoor unit 100 on which the flat heat exchanger 210 is mounted, and FIG. 7 is a schematic top view showing the internal structure of the outdoor unit 100 of FIG. 6 and 7, parts having the same configuration as the outdoor unit 100 of FIGS. 3 to 5 are denoted by the same reference numerals, and description thereof is omitted.

6 and 7, the flat heat exchanger 210 is formed in a flat plate shape, and extends to the connection portion (corner portion) between the side surface portion 2B and the back surface portion 2C on the back surface side of the housing 100A. Has been placed. In addition, since the model with low air-conditioning capability can ensure the performance even with the flat heat exchanger 210, the flat heat exchanger 210 is mounted on the outdoor unit 100. On the other hand, an L-shaped heat exchanger 10 is mounted on a model that requires high air conditioning capability.

Here, the flat heat exchanger 210 is disposed at the same position as the position where the planar region of the L-shaped heat exchanger 10 is disposed on the bottom plate 4. Therefore, the distance between the flat heat exchanger 210 and the side edge is equal to the distance between the planar region 10a of the L-shaped heat exchanger 10 and the side edge 2D. Therefore, even if the bottom plate 4 is shared by the outdoor unit 100 and either the L-shaped heat exchanger 10 or the flat heat exchanger 210 is mounted, the gap is filled by the bent portion of the side edge 2D. The gap is such that fingers and the like having a distance D10 (= about 5 to 10 mm) do not enter.

When the flat heat exchanger 210 is mounted in the outdoor unit 100, as shown in FIG. 8, in order to prevent foreign matter from entering the housing 100A, the side surface 2B has all the vent holes 2X. It is preferably formed in a closed flat plate shape. Such two types of side surface portion 2B or back surface portion 2C are manufactured by managing the insertion / extraction of the air holes 2X in the mold process while using the same mold.

According to the above-described embodiment, the side edge 2D of the opening 100B on the back surface is provided at a position facing the flat area 10a, and is bent toward the flat area 10a so as to fill a gap with the flat area 10a. Thus, even when the bottom plate 4 is shared and different types of

heat exchangers

10 and 210 are mounted, safety can be reliably ensured. Further, when the L-shaped heat exchanger 10 is mounted, if the side edge 2D is provided on the boundary 10x between the flat region 10a and the curved region 10b of the L-shaped heat exchanger 10, the back surface portion The area covered by 2C can be minimized.

The embodiment of the present invention is not limited to the above embodiment. For example, in FIG. 2, the case where the front part 2A, the side part 2B, and the back part 2C of the outer panel 2 are integrally formed is illustrated, but the outer panel 2 is assembled on the bottom plate 4 in a state of being formed separately. There may be. Even in this case, the back surface portion 2 </ b> C is arranged so that the side edge portion 2 </ b> D faces the planar region 10 a of the L-shaped heat exchanger 10.

5B illustrates the case where the side edge portion 2D is folded back in a single manner, but it may be folded back twice, or the folded portion may be curved without contacting the back surface portion 2C. It may be formed in a U shape.

1 to 8 exemplify the case where the back surface 2C side is formed in a flat plate shape, a ventilation hole may be provided to improve the air permeability.

1 top panel, 2 outer panel, 2A front part, 2B side part, 2C rear part, 2D side edge, 2X vent, 3 side panel, 4 bottom plate, 5 separator, 6 compressor, 7 refrigerant piping, 8 electricity Product box, 10 L-shaped heat exchanger, 10a plane area, 10b curved area, 10c side area, 10x boundary, 11 blower, 20 blower holder, 100 outdoor unit, 100A housing, 100B opening, 210 flat heat exchange , D1, D10 interval, MR machine room, WR blower room.

Claims

A housing having an opening on the back side;
A heat exchanger housed in the housing so that the flat region is exposed from an opening on the back side of the housing.
An outdoor unit of an air conditioner, wherein a side edge of the opening on the back side is provided at a position facing the planar region and is bent toward the heat exchanger.
The air conditioner according to claim 1, wherein the heat exchanger is an L-shaped heat exchanger having a curved surface region connected to the planar region and a side region connected to the curved region. Outdoor unit.
The outdoor unit for an air conditioner according to claim 2, wherein the side edge portion is provided on a boundary between the curved region and the planar region of the L-shaped heat exchanger.
The outdoor unit for an air conditioner according to claim 2 or 3, wherein a side surface of the housing that faces the side region has a vent hole.
The outdoor unit of an air conditioner according to claim 1, wherein the heat exchanger is a flat heat exchanger formed in a flat plate shape.
The outdoor unit of an air conditioner according to claim 5, wherein the side surface of the casing is formed by a flat plate that blocks ventilation.
7. The housing according to claim 1, wherein the housing has a back surface portion that surrounds a part of the back surface side, and a vent hole is formed in the back surface portion. Air conditioner outdoor unit.