JP2007127312A - Outdoor unit for air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit for an air conditioner with superior workability of closing valve attachment plate, capable of preventing tilting of the closing valve attachment plate. <P>SOLUTION: A bottom plate 2 is provided for forming a bottom of a casing of the outdoor unit, a front plate 5 is provided for forming a front face of the casing of the outdoor unit, and the closing valve attachment plate 1 is provided for attaching a closing valve arranged in a refrigerant piping connection opening. It is composed such that the bottom plate is joined to a lower part of the closing valve attachment plate 1, and the closing valve attachment plate 1 is joined to the front plate 5. Since, not only are the closing valve attachment plate 1 and the bottom plate 2 screwed together by a screw 9b, but the closing valve attachment plate 1 and the front plate 5 are also screwed together by a screw 9a, tilting of the closing valve attachment plate 1 toward a body side can be prevented in attachment work of piping to the closing valve by a nut. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to the structure of an outdoor unit of an air conditioner.

  In the outdoor unit of the separation type air conditioner in which the indoor unit and the outdoor unit are separated, the pipe filling port of the outdoor unit is arranged so that the refrigerant filled in the outdoor unit does not leak during installation or maintenance. A shut-off valve is provided to prevent leakage of refrigerant from the outdoor unit. And when attaching such a closing valve, the closing valve mounting plate is provided so that it can attach in the form exposed to the exterior of an outdoor unit. Conventionally, such a shut-off valve mounting plate is mounted on a bottom plate that forms an outer frame of an outdoor unit (see, for example, Patent Document 1).

  FIG. 6 is an enlarged view of a connection portion between the conventional closing valve mounting plate 100 and the bottom plate 200 described in Patent Document 1. As shown in FIG. 6, the closing valve mounting plate 100 includes a side portion 100a extending in the vertical direction, an extending piece portion 100b protruding inward of the outdoor unit from the lower end of the side portion 100a, and a distal end side of the extending piece portion 100b. The bottom plate 200 includes a bottom portion 200a extending in the horizontal direction, a rising wall 200b erected from an edge portion of the bottom portion 200a, and a projecting piece 300. The locking claw 400 and the projecting piece 300 are engaged to stabilize the rising state of the closing valve mounting plate 100.

FIG. 7 is an attachment perspective view in which the refrigerant pipe 110 is attached to the closing valve 100. In FIG. 7, when connecting the refrigerant | coolant piping 110 and the shut-off valve 100 using the conventional nut 120, the direction which tightens the nut 120 is a rotation direction of a right-handed screw normally. The arrow in FIG. 7 is the direction in which the nut 120 is tightened.
JP 2002-54823 A

  However, in the conventional configuration, when the direction in which the nut 120 is tightened is the right-handed screw rotation direction, it cannot be prevented from falling against the force in the direction of tilting the closing valve mounting plate 100 toward the main body. Had problems.

  The present invention solves the above-mentioned conventional problems, and provides an outdoor unit of an air conditioner that is excellent in workability of a closing valve mounting plate and can prevent the closing valve mounting plate from falling down.

  In order to solve the above-described conventional problems, an outdoor unit of an air conditioner according to the present invention includes a bottom plate that forms the bottom of a casing of the outdoor unit, a front plate that forms the front of the casing of the outdoor unit, and refrigerant piping A closing valve mounting plate for mounting a closing valve disposed at the connection port, the bottom plate and the lower part of the closing valve mounting plate are coupled, and the closing valve mounting plate and the front plate are coupled. It is a thing.

  As a result, the closing valve mounting plate and the front plate are screwed together with screws, so that the closing valve mounting plate can be prevented from falling to the main body side in the operation of mounting the pipe to the closing valve with the nut.

  The present invention provides an outdoor unit of an air conditioner that is excellent in workability of a closing valve mounting plate and can prevent the closing valve mounting plate from falling down.

  A first aspect of the present invention is a closing valve mounting for mounting a bottom plate that forms the bottom of a casing of an outdoor unit, a front plate that forms the front surface of the casing of the outdoor unit, and a closing valve disposed at a refrigerant pipe connection port An air conditioner outdoor unit comprising: a plate, wherein the bottom plate and the lower part of the closing valve mounting plate are coupled, and the closing valve mounting plate and the front plate are coupled. In the work of attaching the pipe with a nut, when the direction of tightening the nut is the direction of the right thread, the bottom plate and the lower part of the closing valve mounting plate are joined, and the closing valve mounting plate and the front plate are joined. Since the force applied in the direction of the right screw is supported by the respective coupling portions, the closing valve mounting plate can be prevented from falling to the main body side of the outdoor unit.

  According to a second aspect of the present invention, in the outdoor unit of the air conditioner of the first aspect of the invention, an extending piece extending substantially perpendicularly to the closing valve mounting plate is provided from the lower end of the closing valve mounting plate. By providing an extended piece at the lower part of the closing valve mounting plate, the force to fall the closing valve mounting plate to the main body side is further supported by the extended piece portion, and the main body side of the outdoor unit is It can be prevented from falling down.

  The third aspect of the invention is characterized in that in the outdoor unit of the air conditioner of the first or second aspect of the invention, a convex surface is provided so as to surround the attachment part of the closing valve of the closing valve attaching plate, When attaching a shut-off valve and piping arranged on a surface surrounded by a convex surface with a nut, a force in the torsional direction is applied to the surface surrounded by the convex surface, and the surface to which the force is applied is likely to be deformed. However, since there is a convex surface, the surface surrounded by the convex surface has a shape that is not easily deformed, so that the closing valve mounting plate can be prevented from being deformed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a perspective view of an outdoor unit 14 for an air conditioner according to a first embodiment of the present invention. In FIG. 1, an outdoor unit 14 of an air conditioner according to the present embodiment has a bottom plate 2 as a bottom, a front plate 5 as a front portion, a right plate 15 as a right side, a left plate 16 as a left side, and a top plate 18 as a top. A compressor, an outdoor heat exchanger, a fan, and the like (not shown) that constitute a refrigeration cycle are disposed inside the casing.

  FIG. 2 is an enlarged view of part A of FIG. 1 in the same embodiment of the present invention. As shown in FIG. 2, on the right side is a connection portion that connects the equipment constituting the refrigeration cycle inside the housing and the indoor unit with piping, and when the piping is not connected, the refrigeration inside the housing is Closed valves 20a and 20b are closed so as not to leak the refrigerant stored in the cycle, and a closed valve mounting plate 1 for mounting the closed valves 20a and 20b is provided. In the first embodiment, the closing valves 20a and 20b are provided on the right side surface. However, the present invention is not limited to this, and there is no problem even if the closing valves 20a and 20b are provided on the left side surface.

  Further, the closing valve mounting surface 7 to which the closing valve 20 b is mounted has a shape surrounded by the convex surface 8. In the first embodiment, only the lower closing valve 20b is surrounded by the convex surface 8. However, both the closing valves 20a and 20b may be surrounded by the convex surface 8. I do not care. However, since the closing valve 20b has a larger force for tightening the nut 12 when connecting the normal closing valves 20a and 20b to the pipe than the closing valve 20a, it is preferable to surround only the closing valve 20b.

3 is an exploded view of part A of FIG. 1 according to the embodiment of the present invention, and FIG. 4 is an assembly view of FIG. As shown in FIG. 4, the side plate 5a of the front plate 5 and the upper part of the closing valve mounting plate 1 are screwed with screws 9a, and the bottom plate 2 and the lower part of the closing valve mounting plate 1 are screwed with screws 9b. . In the first embodiment, the screws 9a and 9b are screwed to each other, but they may be engaged and connected by providing an engaging hole and an engaging piece in each part to be connected.

  Moreover, the extending piece 1b extended substantially perpendicularly with the closing valve attachment plate 1 from the lower end part of the side plate 1a of the closing valve attachment plate 1 is provided. In the first embodiment, the extending piece 1b extends from the lower end portion of the side plate 1a. However, not only the lower end portion of the side plate 1a but also the entire lower end portion of the closing valve mounting plate 1 is substantially vertical. Alternatively, the stretched piece may be extended.

  FIG. 5 is a cross-sectional view of an essential part in the same embodiment of the present invention. In FIG. 5, when the pipe 11 is connected to the closing valves 20 a and 20 b, the nut 12 is tightened with the spanner 13, and the tightening direction is the right-handed direction. The direction in which the nut 12 is tightened is indicated by an arrow.

  The operation and action of the outdoor unit of the air conditioner configured as described above will be described below.

  When the nut 12 is tightened with the spanner 13 in the direction of tightening the right screw, a force is applied to the closing valve mounting plate 1 in the direction of the arrow shown in FIG. However, since the closing valve mounting plate 1 and the front plate 5 are screwed by screws 9a, and the lower part of the closing valve mounting plate 1 and the bottom plate 2 are screwed by screws 9b, the closing valve is driven by force in the tightening direction. The mounting plate 1 is prevented from falling to the main body side.

  In addition, since the extending piece 1b extending substantially perpendicularly to the closing valve mounting plate 1 is provided from the lower end portion of the side plate 1a of the closing valve mounting plate 1, the closing valve mounting plate 1 is further provided on the main body side. Can be prevented from falling down.

  Moreover, since the shut-off valve mounting surface 7 to which the shut-off valve 20b is attached has a shape surrounded by the convex surface 8, it is connected to the shut-off valve 20b disposed on the shut-off valve mounting surface 7 surrounded by the convex surface 8 and piping. In the operation of attaching the nut 11 to the nut 12, a force in the twisting direction is applied to the closing valve mounting surface 7 surrounded by the convex surface 8, and the closing valve mounting surface 7 to which the force is applied tends to be deformed. Since there is 8, the closing valve mounting surface 7 surrounded by the convex surface 8 has a shape that is not easily deformed, so that the closing valve mounting plate 1 can be prevented from being deformed.

  As described above, in the first embodiment, the bottom plate 2 that forms the bottom of the casing of the outdoor unit 14, the front plate 5 that forms the front of the casing of the outdoor unit 14, and the refrigerant pipe connection port are disposed. And the closing valve mounting plate 1 for mounting the closing valves 20a and 20b, the bottom plate 2 and the lower part of the closing valve mounting plate 1 are connected, and the closing valve mounting plate 1 and the front plate 5 are connected. In the operation of attaching the pipe 11 to the closing valves 20a and 20b with the nut 12, when the direction in which the nut 12 is tightened is the direction of the right screw, the bottom plate 2 and the lower part of the closing valve mounting plate 1 are connected, and the closing is performed. Since the valve mounting plate 1 and the front plate 5 are combined, the closing valve mounting plate 1 is prevented from falling to the main body side of the outdoor unit 14 in order to support the force applied in the direction of the right-hand thread at each connecting portion. can do.

  Further, since the extending piece 1b extending substantially perpendicular to the closing valve mounting plate 1 is provided from the lower end of the closing valve mounting plate 1, the extending piece 1b is provided below the closing valve mounting plate 1. By this, the force which tries to fall down the closing valve mounting plate 1 to the main body side can be further supported by the extending piece 1b, and can be prevented from falling to the main body side of the outdoor unit 14.

Moreover, the convex surface 8 is provided so that the attachment part of the shut-off valve 20b of the shut-off valve attachment plate 1 may be enclosed, and the closure arrange | positioned by the shut-off valve attachment surface 7 enclosed by the convex surface 8 is characterized by the above-mentioned. In the operation of attaching the valve 20b and the pipe 11 with the nut 12, a force in the torsional direction is applied to the closing valve mounting surface 7, and the surface to which the force is applied tends to be deformed. Since the valve mounting surface 7 has a shape that is difficult to deform, the deformation of the closing valve mounting plate 1 can be prevented.

  As described above, the outdoor unit of an air conditioner according to the present invention is not limited to an air conditioner, and can be applied to a pipe connection structure such as various types of hot water heaters.

The perspective view of the outdoor unit of the air conditioner in Embodiment 1 of this invention An enlarged view of part A of the outdoor unit of the air conditioner Part A exploded view of the outdoor unit of the air conditioner Part A perspective view of the outdoor unit of the air conditioner Cross section of the main part of the outdoor unit of the air conditioner Exploded view of the main parts of a conventional air conditioner outdoor unit Perspective view of an outdoor unit of a conventional air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Closing valve mounting plate 2 Bottom plate 5 Front plate 7 Closing valve mounting surface 8 Convex surface 9a Screw 9b Screw 11 Piping 12 Nut 14 Outdoor unit 15 Right side plate 16 Left side plate 18 Top plate 20a Closing valve 20b Closing valve

Claims (3)

A bottom plate that forms the bottom of the casing of the outdoor unit, a front plate that forms the front surface of the casing of the outdoor unit, and a closing valve mounting plate that attaches a closing valve disposed at the refrigerant pipe connection port, An outdoor unit for an air conditioner, wherein a bottom plate and a lower part of the closing valve mounting plate are coupled, and the closing valve mounting plate and the front plate are coupled. The outdoor unit for an air conditioner according to claim 1, further comprising an extending piece extending substantially perpendicular to the closing valve mounting plate from a lower end portion of the closing valve mounting plate. The outdoor unit for an air conditioner according to claim 1 or 2, further comprising a convex surface so as to surround a mounting portion of the closing valve of the closing valve mounting plate.

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