JP2008292062A - Refrigerant vessel fixing device of compressor piping - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator vessel fixing device for compressor piping easy to mount a refrigerator vessel and capable of establishing a vibrationproof support. <P>SOLUTION: A fixing band 20 having a cut 22 in one place on a ring-shaped part 21 is fitted on the periphery of an accumulator 9 put in vertical attitude so that the accumulator 9 and the fixing band 20 are put in the mutually tightened relation, and an extension part 23 protruding radially from the cut 22 in the fixing band 20 is secured to a mounting plate 10 dangling from a top plate 3 of an air-conditioner outdoor unit. At the periphery of the accumulator 9, a downward facing level difference 9a is formed, whereto the top edge of the fixing band 20 is abutted. A vibration absorbing material 30 is pinched between the accumulator 9 and the fixing band 20. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  In a device including a refrigerant compressor, such as an outdoor unit of an air conditioner, a refrigerant container such as an accumulator or a receiver is disposed in a refrigerant pipe of the compressor. The present invention relates to a fixing device for such a refrigerant container.

Various proposals have been made to fix the refrigerant container, and examples thereof can be seen in Patent Documents 1-3. Patent Document 1 discloses a structure in which a lower end of an accumulator is fixed to a bottom plate via an accumulator fixing base, and an upper outer periphery of the accumulator is fixed to an L-shaped accumulator fixing plate in which a base end is fixed to an end fitting of a heat exchanger. Is disclosed. Patent Document 2 discloses a structure in which an accumulator is fixed to a device base via a support bracket. Patent Document 3 discloses a structure in which an accumulator is fixed to a partition plate in an outdoor unit of an air conditioner with an accumulator fixing band.
Japanese Utility Model Publication No. 4-95229 JP-A-6-117729 Japanese Utility Model Publication No. 60-113466

  The refrigerant container fixing structure described in Patent Literatures 1-3 has the following problems. First, since the thing of patent document 1 is a structure which mounts an accumulator on an accumulator fixed stand, it is hard to use for the type of accumulator from which piping is derived | led-out from a lower end. Also, the accumulator fixing base is installed on the bottom plate of the equipment, but a considerable part of the bottom plate is occupied by the compressor and the sound absorbing material wound around the compressor, and the installation space for the accumulator fixing base is narrow, The workability of the refrigerant container mounting work is poor. In the device described in Patent Document 2, only one point of the accumulator is in contact with the support bracket, and vibration countermeasures are not sufficient. In the device described in Patent Document 3, the accumulator is fixed by the partition plate in the outdoor unit of the air conditioner, and therefore the accumulator cannot be moved freely.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a refrigerant container fixing device for a compressor pipe that can be easily attached to the refrigerant container and can also provide vibration-proof support.

  (1) To achieve the above object, according to the present invention, when fixing a cylindrical refrigerant container disposed in a refrigerant pipe of a compressor, one annular portion is provided on the outer periphery of the refrigerant container in a vertical posture. A fixed band having a cut is fitted to the refrigerant container and the fixed band is put in a tightening relationship, and an extension projecting radially from the cut of the fixed band is fixed to a mounting plate hanging from the top plate of the device. It is characterized by.

  According to this configuration, the refrigerant container is attached not to the bottom plate of the equipment on which various components are placed, but to the top plate of the equipment with a large space. It is also easy to do. Since the refrigerant container is attached in a state of being fastened by a fixing band, it can be attached without rattling and vibration is prevented. Further, the position of the mounting plate can be freely determined, and the degree of freedom in setting the installation location of the refrigerant container is high.

  (2) In the refrigerant container fixing device for a compressor pipe having the above configuration, it is preferable that a downward step is formed on the outer periphery of the refrigerant container, and the upper edge of the fixing band is brought into contact with the step.

  With such a configuration, the fixing band engages with the step to prevent the refrigerant container from falling, so that the refrigerant container is held at a predetermined position even if the fixing band is slightly tightened.

  (3) Moreover, in the refrigerant container fixing device for a compressor pipe having the above-described configuration, it is preferable to sandwich a vibration absorbing material between the refrigerant container and the fixing band.

  With such a configuration, the vibration propagating from the compressor to the refrigerant container is less likely to be transmitted to the mounting plate and eventually to the top plate, and noise can be suppressed.

  (4) In the refrigerant container fixing device for a compressor pipe having the above-described configuration, it is preferable that the refrigerant container is attached to the top plate before the top plate is assembled to the equipment housing.

  With such a configuration, since the refrigerant container is attached to the top plate in an open space, workability is good.

  According to the present invention, the refrigerant container can be easily arranged and fixed in the device even if it is of a type in which piping is led out from the lower end. Further, the vibration isolation support of the refrigerant container is also possible.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 is a perspective view of a part of an air conditioner outdoor unit, FIG. 2 is a perspective view showing a state in which the accumulator is supported by a fixing band and a mounting plate, and FIG. 3 is a side view of the accumulator in an attached state. 4 is a perspective view of the mounting plate, and FIG. 5 is a perspective view of the fixed band.

  An outdoor unit of an air conditioner is configured by combining a plurality of side plates 2 (only a part thereof is indicated by imaginary lines in FIG. 1) and a top plate 3 in combination with a bottom plate 1. The interior of the housing is partitioned into a compressor chamber 5 and a heat exchanger chamber 6 by a vertical partition plate 4. A compressor 7 is installed in the compressor chamber 5, and a heat exchanger 8 is installed in the heat exchanger chamber 6. A cylindrical accumulator 9 is disposed in the refrigerant pipe of the compressor 6. The accumulator 9 is arranged with the axis line vertical, and refrigerant pipes P1 and P2 (see FIG. 3) are led out from the upper and lower ends. The accumulator 9 is fixed to the top plate 3 in the manner described below.

  A mounting plate 10 and a fixing band 20 are used to fix the accumulator 9. As shown in FIG. 5, the fixing band 20 has a substantially Ω shape as a whole, bends a thin plate of metal or synthetic resin to form an annular portion 21 that surrounds the outer periphery of the accumulator 9, and cuts one portion of the annular portion 21. 22 is formed, and the extended portion 23 is protruded from the cut 22 in the radial direction. There are two extensions 23, one on each side of the cut line 22, and they are in parallel with each other. A screw through hole 24 is formed at the end of each extension 23.

  As shown in FIG. 4, the mounting plate 10 is obtained by pressing a metal plate into an L shape, and is fixed to the top plate 3 so that the L-shaped short side 11 is applied to the lower surface of the top plate 3. Screw through holes 13 and 14 are formed at the center of the short side 11 and the lower end of the long side 12.

  On the outer periphery of the accumulator 9, a downward step 9a (see FIG. 3) is formed. In the illustrated embodiment, the lower surface of the large-diameter portion 9b formed near the upper end of the accumulator 9 in the vertical posture constitutes the step 9a.

  The attachment procedure of the accumulator 9 is as follows. First, a belt-shaped vibration absorber 30 (see FIG. 3) is wound around the neck portion of the step 9a. The vibration absorbing material 30 is made of a material such as a soft synthetic resin, rubber, or felt. Next, the fixed band 20, in which the interval between the two extension portions 23 is widened to enlarge the inner diameter of the annular portion 21, is fitted to the accumulator 9 from below and shifted upward, and the upper edge of the annular portion 21 abuts against the step 9 a. When the vertical engagement occurs between the step 9 a and the fixed band 20, the hand is released from the fixed band 20. Then, the annular portion 21 is contracted by the spring back, and the vibration absorbing material 30 is sandwiched between the annular portion 21 and the accumulator 9. The fixed band 20 is fitted to the accumulator 9 and lightly tightens the accumulator 9 via the vibration absorbing material 30. The values of the outer diameter of the accumulator 9, the thickness and elasticity of the vibration absorbing material 30, and the inner diameter and restoring force of the annular portion 21 are adjusted, so that the distance between the extension portions 23 is slightly wider than before the fitting with the accumulator 9. Keep it in a state.

  The long side 12 of the mounting plate 10 is inserted into the gap between the extension parts 23, and the screw through holes 24 (two) of the extension part 23 and the screw through holes 14 of the long side 12 are aligned. Then, screws 15 (see FIG. 3) are passed through these screw through holes, and nuts (not shown) are screwed onto the tips of the screws 15 to tighten the screws 15 firmly.

  When the screw 15 is tightened, the fixing band 20 and the mounting plate 10 are fixed, and at the same time, the interval between the extension portions 23 that have been spread is narrowed, the inner diameter of the annular portion 21 is reduced, and the accumulator 9 is firmly tightened.

  When the screw 15 is tightened, the fixing band 20 and the mounting plate 10 are kept at a right angle. A concave / convex engaging portion for maintaining a right angle may be provided between the fixing band 20 and the mounting plate 10.

  After the fixing band 20 and the mounting plate 10 are combined with the accumulator 9 as described above, the short side 11 of the mounting plate 10 is applied to the lower surface of the top plate 3 before being assembled to the housing, and the top plate is secured with screws and nuts (not shown). 3 and the mounting plate 10 are fastened and fixed. As a result, the mounting plate 10 is suspended from the top plate 3. The assembly of the accumulator 9 is completed by assembling the top plate 3 to the housing of the air conditioner outdoor unit. Since the work for attaching the accumulator 9 to the top plate 3 can be performed in an open space, workability is good.

  In the attached state, the accumulator 9 tries to slide down due to gravity, but since the vertical engagement occurs between the step 9a and the fixed band 20, the accumulator 9 remains at the height without sliding down. Therefore, the weight burden of the refrigerant pipes P1 and P2 does not increase and the pipe shape does not change. This structure is very advantageous in that it can withstand vibration during product transportation. In the embodiment, the lower surface of the large-diameter portion 9b formed in the accumulator 9 constitutes the step 9a. However, it is also possible to arrange protrusions at appropriate intervals on the circumference and form the step on the lower surface of the protrusion. it can.

  Since the vibration absorbing material 30 is sandwiched between the accumulator 9 and the fixed band 20, vibration propagating from the compressor 7 to the accumulator 9 and transportation vibration are not easily transmitted to the mounting plate 10 and eventually to the top plate 3. Can suppress noise. Further, since the mounting plate 10 supports the weight of the accumulator 9, the weight burden of the refrigerant pipe connected to the accumulator 9 is reduced.

  In the present specification, an accumulator is taken up as a refrigerant container, but it goes without saying that the present invention can also be applied to a receiver.

  Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the invention.

    The present invention can be widely used in equipment equipped with a refrigerant compressor.

Perspective view of some parts of the air conditioner outdoor unit The perspective view which shows the condition where the accumulator is supported by the fixed band and the mounting plate Side view of the accumulator in the mounted state Perspective view of mounting plate Perspective view of fixing band

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottom plate 3 Top plate 7 Compressor 8 Heat exchanger 9 Accumulator 9a Step 10 Mounting plate 20 Fixed band 21 Annular part 22 Break 23 Extension part 30 Damping material

Claims (4)

When fixing the cylindrical refrigerant container disposed in the refrigerant pipe of the compressor, a fixing band having a cut at one place of the annular portion is fitted to the outer periphery of the refrigerant container in a vertical posture. And a fixing band in a tightening relationship, and an extending portion protruding radially from the cut of the fixing band is fixed to a mounting plate hanging from the top plate of the apparatus. The refrigerant container fixing device for a compressor pipe according to claim 1, wherein a downward step is formed on an outer periphery of the refrigerant container, and an upper edge of the fixing band is brought into contact with the step. The refrigerant container fixing device for a compressor pipe according to claim 1 or 2, wherein a vibration absorbing material is sandwiched between the refrigerant container and the fixing band. The refrigerant container for a compressor pipe according to any one of claims 1 to 3, wherein the attachment of the refrigerant container to the top plate is performed at a stage before the top plate is assembled to an equipment housing. Fixing device.

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