JPH1073363A - Show case incorporating refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an irregular deflection of a refrigerant tube which may be caused by a vibration at the time of transporting a show case, and guide and support the refrigerant tube such that the refrigerant tube extends or retracts in response to a pullout or an insertion of a condensing unit of a refrigerator, wherein the refrigerant tube is formed in a winding coil and is disposed between the condensing unit and an evaporator which are stored in the inside of a base strut. SOLUTION: A show case accommodates a condensing unit 10 of a refrigerator in a base strut 4 of a case body 1 such that the condensing unit 10 can be pulled out from the base strut 4. A refrigerant tube 11 which is formed in a winding coil is disposed between an evaporator 8 and the condensing unit 10 which are both accommodated in the inside of the show case. The refrigerating tube 11 has its coil-shaped winding portion longitudinally installed on a bottom surface of the case body 1 and has its both ends suspended from a support rail 12. Accordingly, in response to a pullout and an insertion of the condensing unit 10, the coil portion of the refrigerant tube 11 is guided and supported in such a manner that the coil portion can be extended or retracted longitudinally without falling from the support rail 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a showcase in which a refrigerator is built in a base of a case body.

[0002]

2. Description of the Related Art First, the structure of a refrigerator-incorporated showcase to which the present invention is applied is shown in FIG. 2, and the refrigerant circuit of the refrigerator is shown in FIG. In each figure, 1 is an outer box 2 of a heat insulating casing
And a case body 4 including an inner box 3, 4 is a base of the case body 1, 5 is a product display shelf arranged in a refrigerator of the case body 1, 6
Is a deck pan, in which a cool air circulation duct 7 surrounding the inner box 3 and being defined between the outer box 2 is provided with an evaporator (fin / tube type heat exchanger) 8 of a refrigerator described later and a fan 9 inside the refrigerator. Is incorporated. Further, a condensing unit 10 of the refrigerator is provided inside the base 4 so as to be able to be pulled out to the front of the case body 1 in consideration of maintainability, and the evaporator incorporated in the condensing unit 10 and the inside of the refrigerator. 8 and the high pressure side,
A refrigerant pipe 11 on the suction side is provided. As shown in FIG. 3, the condensing unit 10 is an assembly of a compressor 10a, a condenser 10b, and an external fan 10c. An expansion valve 12 and a solenoid valve 13 are connected to the inlet side of the evaporator 8. ing.

Here, a copper pipe having some flexibility is generally used for the refrigerant pipe 11 so that the condensing unit 10 can be moved to the position where the chain line is drawn out while the refrigerant pipe 11 is still piped. In order to achieve this, the refrigerant pipe 11 is wound in a coil shape along the pipe path as shown in the figure, and the pipe is extended and contracted by utilizing the flexibility of the copper pipe.

[0004]

However, the piping structure in which the refrigerant tube 11 is wound in a coil shape as described above has the following problems in terms of supporting and handling the piping. That is, if the pipe portion wound in a coil shape of the refrigerant pipe is left free inside the base 4, the refrigerant pipe 11 becomes improper due to vibration applied when the showcase is shipped from the factory to the location. There is a possibility that the copper pipe is cracked or broken by repeatedly bending the pipe in a regular manner.

Therefore, conventionally, measures have been taken to bind the coil portion of the refrigerant tube with tape or the like, or to fix the coil portion on a simple support so as not to bend freely during transportation. It is. Also, when the condensing unit 10 of the refrigerator drawn out from the base 4 is stored in the base during maintenance at the location, the coil part of the refrigerant pipe 11 may be entangled unless the coil part of the refrigerant pipe 11 is properly removed. As a result, when the condensing unit is pulled out next time, an excessive bending force may be applied to the refrigerant pipe, and the copper pipe may be broken.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to solve the above-mentioned problems and to prevent irregular bending due to vibration of a coiled refrigerant pipe during transportation in a showcase, Another object of the present invention is to provide a refrigerator-incorporated showcase that can guide and support a refrigerant pipe in a stable state following the insertion and removal of a refrigerator condensing unit, and in particular, to provide a piping support structure for the refrigerant pipe.

[0007]

According to the present invention, in order to achieve the above object, according to the present invention, a condensing unit of a refrigerator is housed inside a base of a case body so as to be able to be pulled out, and the condensing unit is installed inside a case body. In a refrigerator-incorporated showcase in which a refrigerant pipe is piped between an incorporated evaporator and a condensing unit, the refrigerant pipe is wound in a coil shape and is piped so as to be able to follow a drawing operation of the condensing unit. The coiled winding portion of the pipe is supported by a supporting member, and is guided and supported so as to be movable in the direction of expansion and contraction of the coil. The drawing direction of the condensing unit is such that the supporting member passes through the coiled winding portion of the refrigerant pipe. The support rail is configured to be fixed to the bottom surface of the case body.

[0008] According to this configuration, even when the condensing unit is taken in and out of the base at the time of vibration during transportation of the showcase and during maintenance at the location,
The coiled refrigerant tube does not fall off the support rail, and the condensing unit can be moved on the rail in the expansion and contraction direction when the condensing unit is taken in and out. As a result, it is possible to prevent an excessive bending stress from being applied to the coiled pipe portion of the refrigerant pipe and to prevent damage, thereby improving durability and reliability.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1A shows a state in which the condensing unit 10 of the refrigerator is stored inside the base of the showcase, and FIG. 1B shows a state in which the condensing unit 10 is drawn forward. In the drawing, the same members corresponding to FIG. 2 are denoted by the same reference numerals.

That is, between the evaporator 8 incorporated inside the case body 1 and the condensing unit 10 housed inside the base 4 so as to be able to be pulled out forward, the coil is wound in the same manner as in the prior art. A refrigerant tube 11 is provided, and the refrigerant tube 11 has its coiled portion suspended from a support rail 12 laid on the bottom side of the case body 1, and the coil portion extends and contracts in the front-rear direction along the rail. Guided and supported as possible.

The support rail 12 is a single beam-like member and is laid in parallel with the direction in which the condensing unit 10 is pulled out. Are fixed to the bottom surface of the case body 1 by screws. Due to such a configuration, the refrigerant pipe 11 bends greatly irregularly when the condensing unit 10 is put in and out of the vibration applied when the showcase is transported,
Without entanglement or falling off the support rails 12,
The guide is supported so as to be able to expand and contract in the front-rear direction along the rail while maintaining a stable coil shape. Therefore, the refrigerant pipe 1
No damage is caused by excessive bending stress being applied to (1).

[0012]

As described above, according to the structure of the present invention, the condensing unit is wound in a coil shape even when the condensing unit is taken in and out of the base at the time of the vibration during the transportation of the showcase and the maintenance at the location. The cooled refrigerant tube does not fall off the support rail, and can be moved in the expansion and contraction direction on the rail following the condensing unit when the condensing unit is put in and out. Thereby, it is possible to prevent breakage due to excessive bending stress applied to the coiled pipe portion of the refrigerant pipe, thereby improving the durability and reliability.

[Brief description of the drawings]

FIGS. 1A and 1B are configuration diagrams of an embodiment of the present invention, in which FIG. 1A shows a storage state of a condensing unit, and FIG.

FIG. 2 is a conventional configuration diagram of a refrigerator-incorporated showcase to which the present invention is applied;

FIG. 3 is a refrigerant circuit diagram of the refrigerator in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 4 Base 8 Evaporator of refrigerator 10 Condensing unit of refrigerator 11 Refrigerant pipe 12 Support rail

Claims (3)

[Claims] 1. A refrigerator in which a condensing unit of a refrigerator is housed inside a base of a case body so as to be able to be drawn out, and a refrigerant pipe is piped between the evaporator incorporated inside the case body and the condensing unit. In the built-in type showcase, the refrigerant pipe is wound in a coil shape and piped so as to follow the drawing operation of the condensing unit. A showcase with a built-in refrigerator that is guided and supported so as to be movable along. 2. A built-in refrigerator according to claim 1, wherein the support member is a support rail extending in a drawing direction of the condensing unit through a coiled winding portion of the refrigerant pipe. Type showcase. 3. The showcase according to claim 2, wherein the front and rear ends of the support rails are fixed to the bottom surface of the case body.