JPH0849955A - Low temperature chamber - Google Patents

Abstract

PURPOSE:To effectively cancel vibration from the refrigerating unit of a compressor or the like installed in a machine chamber. CONSTITUTION:A low temperature chamber 1 comprises a heat insulating box member 6, a base leg angle 11 attached to the lower part of the heat insulating box member 6, main legs 13 formed on this base leg angle 11 ad protruding downward and a machine chamber 16 formed between the base leg angle 11 and the heat insulating box member 6, opened at least downward and provided with a refrigerating unit R including a compressor 33 or the like therein. Further, the chamber 1 has a first base 22 detachably fixed to the unit rail 14 of the base leg angle 11, auxiliary legs 26 which extend outside the machine chamber 16 and whose length is adjustable and a second base 31 attached onto the first base 22 through vibration proof rubbers 28, and the refrigerating unit R is attached onto the second base 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low temperature system in which a base leg angle is provided below a heat insulating box, and a machine room for arranging a refrigerating unit is formed between the base leg angle and the heat insulating box. It is about the warehouse.

[0002]

2. Description of the Related Art Conventionally, this type of low temperature storage is, for example, Jitsuko Sho 59
-33967 (F25D19 / 02) as a refrigerated showcase, a machine room is formed between the base leg angle (bottom plate) below the heat insulating box (heat insulating wall),
A refrigeration unit including a compressor, a blower, a condenser, and the like is installed in this machine room, and in this case, the refrigeration unit was mounted on a base (mounting table) directly fixed to the base leg angle.

[0003]

However, the compressor and the blower in the machine room are operated and generate vibrations.
This vibration becomes the largest at the time of starting / stopping during the thermocycle, and propagates from the base through the base leg angle to vibrate the heat insulating box above, and relatively large noise is generated. In particular, in recent years, there have been cases where low-temperature refrigerators have been installed in banquet halls such as hotels and restaurants and used as salad bars that allow customers to freely select food items such as salads. There was a problem that the noise made the customer noticeably uncomfortable.

The present invention has been made in order to solve the above-mentioned conventional technical problems, and is a low temperature chamber capable of effectively eliminating vibration from a refrigeration unit such as a compressor installed in a machine room. The purpose is to provide.

[0005]

A low temperature refrigerator according to the present invention includes a base leg angle attached to a lower portion of a heat insulating box, a main leg provided on the base leg angle and protruding downward, a base leg angle and heat insulation. A machine room which is formed between boxes and has at least a machine room opened downward, and a refrigerating unit including a compressor and the like is arranged in the machine room, the machine room being detachably fixed to a base leg angle. A base, a height-adjustable auxiliary leg protruding downward from the first base and extending outside the machine room, and a second base mounted on the first base via a vibration isolator. And a refrigerating unit is mounted on the second base.

[0006]

According to the low temperature refrigerator of the present invention, the first leg angle is the first.
The base is detachably fixed, and the height-adjustable auxiliary leg that projects downward from the first base and extends to the outside of the machine room is provided, and the second base is provided on the first base via a vibration isolation member. Since the base is attached and the refrigeration unit is attached on the second base, the first base is fixed to the base leg angle during transportation of the low temperature warehouse, the auxiliary leg is shortened and the lower end is It can be transported without hindrance by placing it higher than the lower ends of the legs.

When a low temperature storage is installed, the first
The base is removed from the base leg angle, the auxiliary leg is lengthened, the lower end of the base is brought into contact with the installation surface, and the first base is raised to separate the first base above the base leg angle. be able to. At this time, the vibration during the operation of the refrigeration unit is first absorbed by the vibration isolator, but the vibration transmitted to the first base via the vibration isolator has the first base separated from the base leg angle. As a result, transmission from the first base directly to the base leg angle is eliminated. Therefore, the vibration propagating from the refrigeration unit to the heat insulating box can be remarkably reduced, and an extremely quiet low temperature storage can be provided.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a vertical sectional front view of a low temperature storage compartment 1 of the present invention, FIG. 2 is a vertical sectional side view of the low temperature storage compartment 1, FIG. 3 is a top view of the low temperature storage compartment 1, and FIG. 4 is a bottom view of the low temperature storage compartment 1. The cold storage 1 of the present invention is carried to a banquet hall of a hotel or a restaurant, for example, and is used as a salad bar. A foamed polyurethane heat insulating material 4 is provided between an inner box 2 and an outer box 3 which are open on the upper surface. Is formed by an in-situ foaming method. On the side of the heat insulating material 4 of the inner box 2, there is a refrigerant pipe 7 which constitutes a cooler.
Is wound, and a storage chamber 8 for storing foods such as vegetables is formed in the inner box 2, and cages 9, 9 are placed on the inner bottom of the storage chamber 8.

On the other hand, a base leg angle 11 made of a relatively thick steel plate is attached to the lower part of the heat insulating box 6 to support the heat insulating box 6. The base leg angle 11 has a rectangular frame shape as a whole that is open to the periphery and downward, and its bottom side 11A is located below the lower surface of the heat insulating box 6 at a predetermined distance. Also, the foot angle 11
Mounting plates 12 are welded and fixed to the four corners attached to the bottom side 11A of the base plate 11. Main legs 13 are mounted on the mounting plates 12 ... And project downward with a predetermined size. Further, between the left and right mounting plates 12, 12, there are unit rails 14 and 1 made of steel plates which form a part of the base leg angle 11.
4 are attached to the left and right with a predetermined interval in the front and back.

Then, the bottom side 11 of the base leg angle 11
A machine room 16 is formed between A and the heat insulating box 6. The bottom surface of the storage chamber 8 is inclined low toward the drain hole 17, and a drain pipe 19 having an opening / closing valve 18 is connected to the drain hole 17 in the machine room 16. A drain hose 21 is connected to the. This drain pipe 1
A first base 22 made of a steel plate is provided on the unit rails 14, 14 at a position avoiding 9. The first base 22 extends between the front and rear unit rails 14 and 14, and four corners are detachably fixed to the unit rails 14 and 14 by bolts 23.

Four auxiliary legs 26 ... Are attached to the lower surface of the first base 22, pass between the front and rear unit rails 14, and project downward to the outside (downward) of the machine room 16. It has been extended. The base leg portion 26A attached to the lower end of each auxiliary leg 26 ... Is vertically expanded and contracted by rotating and screwing in or loosening, thereby,
The height is adjustable. Shafts 27 ... Are vertically attached to the four corners of the upper surface of the first base 22, and a vibration-proof rubber 28 as a vibration-proof member is attached to each shaft 27. And each anti-vibration rubber 28.
..The second base 31 is inserted into the shaft 27 ... While being mounted on the shaft 27. The upper end of the shaft 27 ... is spaced apart from the second base 31 by the nut 32. Is attached. As a result, the second base 31 is mounted on the first base 22 via the vibration-proof rubber 28.

A refrigeration unit R is mounted on the second base 31. This refrigeration unit R
Is composed of the refrigerant pipe 7 and a compressor 33, a condenser 34, a blower 36 for the condenser, etc., which constitute a known refrigeration cycle, all of which are installed on the upper surface of the second base 31 and housed in the machine room 16. ing. Further, in the machine room 16, an electrical equipment box 43 including a defrost timer, a knob 41 for temperature control, etc., and a lamp 42 is provided.

When the compressor 33 and the blower 36 are operated, the high-temperature and high-pressure gas refrigerant discharged from the compressor 33 flows into the condenser 34, where it is air-cooled and condensed and liquefied. Next, the condensed liquid refrigerant is decompressed by a decompression device (not shown), then flows into the refrigerant pipe 7 and evaporates there to exert a cooling effect. The inside of the storage chamber 8 is cooled to a predetermined refrigerating temperature by the refrigerant pipe 7 via the inner box 2.
A decorative panel (not shown) is attached around the machine room 16 to conceal each device in the machine room 16.

When the cold storage 1 of the present invention having the above-described structure is shipped from a factory or moved in a hotel or restaurant, the first base 22 is unitized by bolts 23 as shown in FIGS. It is fixedly placed on the rails 14, 14.
Further, the base leg portion 26A of the auxiliary leg 26 is also shortened and the lower end thereof is set higher than the lower end of the main leg 13. by this,
Since the auxiliary leg 26 floats above the installation surface, the first base 22, the second base 31, and the refrigerating unit R thereon are completely fixed to the unit rails 14, 14, that is, the base leg angle 11. Therefore, the cold storage 1 can be transported or moved in this state without any trouble.

Next, when the cold storage 1 is installed in a banquet hall or the like, the bolts 23 are removed to remove the first base 22 from the unit rails 14 and 14 (that is, the base leg angle 11), and auxiliary. By projecting the base leg portion 26A of the leg 26 for a long time so that its lower end abuts on the installation surface, and further lengthening the first base 22 to the unit rails 14, 1,
Make it higher than 4. As a result, the first base 22 is separated upward from the unit rails 14, 14 as shown in FIGS.

When the compressor 34 and the blower 36 are operated as described above, the vibration generated from them is first absorbed by the vibration isolating rubber 28 through the second base 31. Next, the vibration transmitted to the first base 22 via the vibration isolating rubber 28 is transmitted to the unit rails 14, 1 by the first base 22.
Since it is separated from No. 4, it is not transmitted from the first base 22 directly to the unit rails 14, 14 (base leg angle 11). Therefore, the vibration propagating from the refrigeration unit R to the heat insulating box body 6 is only transmitted through the pipes or the like, and is significantly reduced to realize extremely quiet operation.

Therefore, the customer invited to the banquet room is the storage room 8
You will not feel any discomfort when taking out the vegetables (salad) inside, and you will be able to proceed to the party without any problems.

In the embodiment, the present invention is applied to a low temperature warehouse used for a so-called salad bar, but it is needless to say that the present invention is also effective for a low temperature showcase, a refrigerator and the like.

[0019]

As described above in detail, according to the present invention, the first base is detachably fixed to the base leg angle, and the first base is attached.
Is provided with an auxiliary leg whose height can be adjusted so as to project downward from the base of the above and extends to the outside of the machine room, and the second base is mounted on the first base via a vibration isolating member. Since the refrigeration unit is attached, it is possible to fix the first base to the base leg angle during transportation of the low temperature warehouse, shorten the auxiliary leg, and place its lower end higher than the lower end of the main leg. Can be transported without.

When a low temperature storage is installed, the first
The base is removed from the base leg angle, the auxiliary leg is lengthened, the lower end of the base is brought into contact with the installation surface, and the first base is raised to separate the first base above the base leg angle. be able to. At this time, the vibration during the operation of the refrigeration unit is first absorbed by the vibration isolator, but the vibration transmitted to the first base via the vibration isolator has the first base separated from the base leg angle. As a result, transmission from the first base directly to the base leg angle is eliminated. Therefore, the vibration propagating from the refrigeration unit to the heat insulating box can be remarkably reduced, and an extremely quiet low temperature warehouse can be provided.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view of a low temperature refrigerator of the present invention (transport state).

FIG. 2 is a vertical cross-sectional side view of the low temperature refrigerator of the present invention (transport state).

FIG. 3 is a top view of a low temperature refrigerator of the present invention.

FIG. 4 is a bottom view of the low temperature refrigerator of the present invention.

FIG. 5 is a vertical cross-sectional front view of the low temperature refrigerator of the present invention in an installed state.

FIG. 6 is a vertical cross-sectional side view in the installed state of the low temperature refrigerator of the present invention.

[Explanation of symbols]

 1 Low Temperature Chamber 6 Insulation Box Body 11 Leg Angle 13 Main Leg 14 Unit Rail 16 Machine Room 22 First Base 23 Bolts 26 Auxiliary Leg 28 Anti-Vibration Rubber 31 Second Base R Refrigeration Unit

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G10K 11/16

Claims (1)

[Claims] 1. A base leg angle attached to the lower part of the heat insulating box, a main leg provided on the base leg angle and protruding downward, and a main leg formed between the base leg angle and the heat insulating box, and at least downward. In a low temperature warehouse having an open machine room, in which a refrigeration unit including a compressor and the like is disposed, a first base detachably fixed to the base leg angle and the first base The second base includes an auxiliary leg that protrudes further downward and extends outside the machine room, and has a height adjustable, and a second base mounted on the first base via a vibration isolating member. A low-temperature storage, characterized in that the refrigeration unit is attached to the top.