JP3530506B2 - Refrigeration unit - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigeration unit in which a part of a refrigeration cycle component such as a compressor and a receiver tank is arranged on a bottom plate to form a single unit. About. 2. Description of the Related Art Conventionally, a refrigeration unit having a compressor and an electric box mounted on a bottom plate is sometimes installed in a machine room or the like.
(Refer to the refrigeration unit described in Japanese Patent Application No. 10-299556 proposed by the applicant). [0003] However, since the compressor is a vibration source, what is in contact with the installation portion resonates,
When a chattering sound is generated or a plurality of refrigeration units are installed, the noise may be felt very loud. [0004] It is also conceivable to provide a frame or the like and arrange the two units vertically, and in this case, if the frame is not a strong frame, there is a possibility that chattering noise may be generated. [0005] The present invention provides a refrigeration unit that can eliminate the noise when it is felt to be loud. SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a compressor, a receiver tank, and other components constituting a part of a refrigeration cycle, such as a compressor and a receiver tank. Placing the electrical box within the projection range of the bottom plate ,
A horizontal plane of the fixture is fixed to the peripheral end side of the bottom plate from above.
And elastic between the panel and the panel standing around the bottom plate
A vertical surface of the fixture and the panel with a body interposed therebetween;
Are fixed. An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a refrigeration unit, which is, for example, a compressor 2, a receiver tank 3,
In the present embodiment, a compressor 2 and a receiver are used in a refrigeration cycle in which components including a condenser (not shown), a pressure reducing device (not shown), an evaporator (not shown), and the like are connected in a ring by a refrigerant pipe. The tank 3 and the electrical box 4 are arranged on a single bottom plate. This refrigeration unit is assumed to be installed in a machine room or the like. In consideration of maintenance and cost reduction, an exterior panel surrounding components arranged on the bottom plate is attached from the beginning. It is not what you are doing. The electrical component box 4 contains electrical components for controlling the operation of the refrigeration cycle. Reference numeral 5 denotes a bottom plate on which equipment (components) such as the compressor 2 is attached. The bottom plate 5 has a substantially flat mounting surface 5A on which devices such as the compressor 2 are attached, and a slightly upward position facing the installation location (for example, the floor or ground on which the installation is performed). And a rising portion 5B that floats on the floor. 6A is a front panel, 6B is a left side panel,
6C is a rear panel, 6D is a top panel, and these are attached to the bottom plate 5 by using a fixture 7 as needed.
6E is a notch formed in the top panel 6D for passing the refrigerant pipe, and is closed after the pipe is passed. In FIG. 1, the right side is not surrounded by a panel. However, since the traveling direction of the sound from the compressor 2 is substantially hindered by the electrical box 4 and the receiver tank 3, it is necessary to surround the panel so strictly. Judging that there is no, it was not enclosed with the panel, but it is of course possible to surround it with the panel. In this embodiment (without the right side panel), the noise value was compared with the presence or absence of the right side panel, and the noise difference was not so large. However, the shape of the receiver tank, the capacity of the compressor In some cases, noise leakage to the right may not be large. The panels 6A, 6B, 6C, 6D and the fixture 7 are packaged separately from the unit and used as needed. As shown in FIG. 2, the fixture 7 has a support portion 7A,
Flange 7B which is a horizontal surface, flange 7 which is a water surface
C and a hole 7D for screwing. Support part 7A
Is formed in a substantially U-shape, to which a vibration-proof rubber (elastic body) 8 having a thickness of 3 mm is attached. And this support part 7A
Are positioned on the side of the rising portion 5B below the mounting surface 5A. The flange 7B is screwed to the mounting surface to fix the fixture 7 to the bottom plate 5, and the flange 7C is for mounting the panel through the screwed hole 7D. Such a refrigerating unit is connected to a condensing unit (condenser) or a use side unit (evaporator) by a refrigerant pipe to constitute a refrigerating machine. It is not necessary to install a panel because it is assumed to be installed in However, for example, when a plurality of units are installed or when it is desired to suppress noise as much as possible because a private house is nearby, a panel may be used to surround the compressor and provide sound insulation. First, the fixture 7 is screwed from above onto the mounting surface 5A of the bottom plate. At this time, even if there is a wall on the back of the refrigeration unit, it can be attached because it is not from the side (from the back side) but from above. Next, an anti-vibration rubber 8 is attached to the fixture 7.
At this time, the screw holes 8B are aligned with the screw holes 7D of the fixture 7. Then, the panel is mounted on the support portion 7A of the mounting member 7 on which the vibration isolating rubber 8 is mounted. At this time, the panel and the mounting member 7 are slightly pressed by the vibration isolating rubber 8 so that chattering of the panel and the like are prevented. After the panel is attached to the fixture 7 as described above, the panel is attached to the bottom plate even if screws are screwed into the screw holes of the flange 7B of the fixture 7. . As mentioned above, if there is a wall on the back of the refrigeration unit, only the rear panel will not be able to be fixed to the bottom plate, but because it is attached to the fixture slightly tightly, It can be considered that chattering sound hardly occurs due to the presence of the elastic body. Finally, when the panels are stopped with screws, the installation of the panels is completed, and the noise can be reduced by surrounding the compressor which is a noise source. At this time, since the support portion 7A is located on the side of the rising portion 5B, the panel and the bottom plate are overlapped with each other, making it difficult for noise to leak. As described above, according to the present invention, components forming a part of a refrigeration cycle, such as a compressor and a receiver tank, and an electric component box are mounted on a bottom plate provided opposite to the installation place. A fixture is disposed within the projection range, and is attached to a peripheral end of the bottom plate.
To fix the horizontal plane from above and surround the bottom plate
With an elastic body interposed between the panel and
By fixing the vertical surface of the fixture to the panel, the fixture and the panel can be attached from the upper side when noise suppression is performed, and the refrigeration unit can be mounted on a wall or the like on the rear side. Even if they are tightly attached to each other, the fixture can be attached, and a panel attached from above can surround a compressor or the like that is a noise source of the refrigeration unit, thereby preventing noise. Further, since an elastic body is interposed between the panel and the bottom plate, vibration of the panel can be prevented as much as possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a refrigeration unit of the present invention. FIG. 2 is a perspective view showing a relationship between a bottom plate, a fixture, and a panel of the refrigeration unit. FIG. 3 is a cross-sectional view illustrating a relationship among a bottom plate, a fixture, and a panel of the refrigeration unit. FIG. 4 is a perspective view showing a state where a panel is attached to the refrigeration unit. [Description of Signs] 1 Refrigeration unit 5 Bottom plate 5A Placement surface 5B Rising parts 6A to 6D Panel 7 Mounting fixture 7A Supporting part 8 Anti-vibration rubber (elastic body)

Continuation of front page       (56) References Hira 4-50333 (JP, U)                 Actual opening Hei 3-99473 (JP, U)                 Japanese Utility Model Showa 64-33779 (JP, U)                 Japanese Utility Model Hei 5-3823 (JP, U)                 Actual opening Hei 3-129833 (JP, U)                 3-3636 (JP, U)

Claims (1)

(57) [Claim 1] A component, which forms a part of a refrigeration cycle, such as a compressor and a receiver tank, and an electric box are provided within a projection range of the bottom plate provided on a bottom plate facing the installation location. Placed in front
When the horizontal surface of the fixture is fixed to the peripheral edge of the bottom plate from above
An elastic body between the panel and the panel that both stand so as to surround the bottom plate.
With the vertical surface of the mounting fixture and the panel interposed
A refrigeration unit, characterized by fixing.