JPH08303819A - Assembling structure for refrigerating machine - Google Patents

Abstract

PURPOSE: To realize the assembling structure of a refrigerating machine, which is capable of assembling without fixing through screws, silent in operating sound and high in energy efficiency. CONSTITUTION: In a device having a refrigerating machine, the refrigerating machine is assembled while being wrapped into a package frame by a method wherein components 121-126, constituting the refrigerating machine, are fitted into component fixing recesses 4-7 provided in the package frame formed of a molded form of a plastic foamed body and/or a rubber foamed body and provided with a shape of a box constituted of an upper block body 2 and a lower block body 3, which are dividable into upper and lower parts, and one series of air flow passage 8 is formed, to fix them to the refrigerating machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an assembling structure for assembling refrigerating machine parts in a refrigerating machine and various apparatuses to which the refrigerating machine is applied.

[0002]

2. Description of the Related Art As a device equipped with a refrigerator, a refrigerator component is a main component of the device such as various air conditioners and various cooling devices, and for example, dry compressed air is supplied to an air device. As in the compressed air supply device, the parts such as the air compressor and the air tank are integrated with the compressed air dehumidifier that cools and dehumidifies the compressed air by the refrigerator, and the refrigerator unit is attached to part of the device. There are some types. In both of these types of devices, when assembling the refrigerator, on a steel plate mounting board,
It is a general method to fix the components of the refrigerator by screwing or the like, and then connect the components with piping or wiring to assemble them.

Taking a compressed air dehumidifier as an example,
As shown in FIG. 4 as an assembly system diagram, the compressed air dehumidifier includes a refrigerator component such as a refrigerant compressor 121, a refrigerant condenser 122, a refrigerant decompressor 124, and a condenser fan 123, and a compressed air inlet / outlet port. Compressed air cooling dehumidifying heat exchanger 12 in which a refrigerant evaporator of the refrigerator is incorporated in a tank
5, a mounting board 1 made of a steel plate provided on the bottom of the case, together with a large number of connecting parts for connecting and integrating these.
The compressed air dehumidifier is assembled by fixing it to 27 with screws.

This assembly work includes the assembly work of the fan 123 and the support frame 131 of the condenser 122, the installation work of the support legs 132 of the heat exchanger 125, and the like, as in the case of the compressor 121. 127 includes various screwing work such as screwing work through a rubber washer for vibration proof as necessary, and further, after connecting and fixing the parts to each other by piping or wiring, the heat exchanger 125
Parts such as the accumulator 126, the suction side pipe of the refrigerator, etc. that require coating with a heat insulating material in order to prevent dew condensation and improve thermal efficiency, have a heat insulating coating prepared in advance according to the shape. Members 128,129
It is performed by attaching the etc. 101
Is a cover plate that covers screws and the like protruding below the mounting substrate.

[0005]

[Problem] In the conventional assembly of refrigerator parts and assembly of a compressed air dehumidifier, there are many fixing points by screwing, and it takes a long time to assemble, which requires skill. There is a drawback of. Since the heat insulating coating process is also performed for each individual component, it is necessary to prepare various types of coating members, and there is a drawback in that attachment and fixing also take time. On the contrary, the refrigerator parts include parts that require air cooling, such as a condenser and a refrigerant compressor. Since cooling of these components is performed by a fan attached to the condenser, in order to obtain sufficient cooling air, the method of setting the air flow path is also limited, and the degree of freedom in device design is reduced.

Further, since the refrigerator generates noise, the inner surface of the case is covered with a sound absorbing material, and the vibrating member is
By taking measures such as screwing and fixing with a thick-walled cylindrical vibration-proof rubber 135, ... Between the board 127 and the board 127, vibration and resonance or resonance phenomenon of members are prevented, and noise leaks out of the case. Had been prevented. However, in the conventional device, since the compressor parts such as the compressor, which generate vibrations and noises, are directly screwed and fixed to the steel plate substrate,
The refrigerator case functions as a resonance box, and the sound absorbing material and the vibration isolating material stretched on the inner surface of these cases cannot sufficiently exert the noise and vibration suppressing effect.

[0007]

SUMMARY OF THE INVENTION It is a first object of the present invention to disclose a refrigerating machine assembling structure which does not require screwing and fixing of refrigerating machine parts and can be assembled quickly and easily. A second object of the present invention is to disclose a refrigerating machine assembly structure in which vibration and noise are small and the operating noise is quiet. The third object of the present invention is to
Disclosed is a refrigerating machine assembly structure having high heat insulation and high energy efficiency.

[0008]

According to a first aspect of the present invention, in a device having a refrigerator, parts constituting the refrigerator can be divided into a plurality of blocks made of a molded product of plastic foam and / or rubber foam. The refrigerator is assembled in the package frame by fitting and fixing the component in the component fixing recess provided in the package frame by the package frame in which a series of air flow paths are formed. It is in the assembly structure of the refrigerator characterized by.

In the above, as the plastic foam (plastic foam), for example, polystyrene foam, polyethylene foam, polypropylene foam, polyurethane foam, 6,6-nylon foam, polycarbonate foam, etc. may be used. it can. Further, as the rubber foam (rubber foam), synthetic rubber materials such as acrylonitrile butadiene rubber foam, butyl rubber foam and styrene butadiene rubber foam, and natural rubber foam can be used. These materials are used as a single type and also as a composite material in which a plastic foam and a rubber foam are laminated.

As the laminated composite material, for example, a rubber foam layer made of a rubber foam having a high elasticity is provided as a lower layer, and a plastic foam layer having a high heat insulating property and a rigidity is integrally formed on the rubber foam layer. It is possible to use a composite material having a two-layer structure provided in the. Such a material firmly holds the component by the component fixing recess provided in the plastic foam layer, and the lower rubber foam layer damps the vibration and suppresses the propagation of vibration and noise. Of course, in consideration of the characteristics based on the type and composition of the plastic foam or rubber foam, or the ease of molding and the ease of cutting work for rework at the time of assembly, etc., these may be used alone. It doesn't matter.

The package frame is divided into a plurality of blocks constituting the package frame, and the refrigerator component is inserted and fixed in the component fixing recess formed according to the shape and function of the component in these blocks. Refrigerator is constructed by connecting these parts with refrigerant pipes, etc., and then the block bodies are brought into close contact with each other, and the assembled refrigerating machines are fixed in the package frame. Then, the refrigerator is completed.

According to a second aspect of the present invention, in the refrigerator assembly structure defined in the first aspect, the package frame is a box constituted by an upper block body and a lower block body which are vertically separable. A series of air passages that form a shape and connect between a plurality of openings provided in the package frame are formed, and a refrigerant compressor that constitutes a refrigerator from an air inlet to an outlet of the air passage, In the refrigerating machine assembly structure, the refrigerant condenser is arranged and fixed in this order.

In such a structure of the package frame, the lower block body is integrally formed by forming the component fixing recess corresponding to the shape of the component in the lower block body and inserting the component in the component fixing recess provided therein. Therefore, even if the block bodies are not fixed to each other, they act as substrates for fixing the positions of the refrigerator parts to each other. The upper block body may be placed on the lower block body, and the upper block body may be covered around the dew condensation component. Further, when the upper block body is overlaid on the lower block body, the refrigerator is included, and the upper block body and the lower block body are clamped and fixed by the fixing band, the effect of the package frame becomes more remarkable.

In the assembly structure of the refrigerator using the package frame according to the present invention, the refrigerator parts have heat insulation, elasticity,
As it is assembled on the package frame made of material with sound insulation and vibration damping, vibration is dampened and driving noise becomes quiet. Assembling is simple, quick, and easy because it is supported by the fixing recess of the package frame with almost no screw fixing. Also, except for the air flow path, all refrigerator parts are in a state of being enclosed in the package frame, so noise is blocked, heat insulation characteristics are excellent, and impact resistance is improved, so energy efficiency and durability are improved. Significant cost reductions will be realized through improvements and simplification of transportation packaging.

[0015]

1 and 2 show a compressed air dehumidifying apparatus according to an embodiment of the present invention. Package frame 1
Is composed of an upper block body 2 and a lower block body 3, and each of the block bodies 2 and 3 is molded of polypropylene foam. Since the components themselves that make up the compressed air dehumidifier are the same as those shown in the prior art in FIG. 3, they will be described with the same reference numerals as the components in FIG.

The lower block body 3 serves as a mounting substrate for fixing the positions of the components, and the heat exchanger 12
5, a component fixing recess 4 into which the lower half of the component 5 can be fitted, the refrigerant compressor 1
Fixed recess 5 into which the lower part of 21 can be fitted, refrigerant condenser 122
A blower fan 123 attached to the lower portion of the accumulator 126 is provided with a fixed concave portion 6 to be fitted and fixed, a fixed concave portion 10 to which the lower portion of the accumulator 126 is housed and supported and fixed. These component fixing recesses are integrally molded in advance by molding, but may be used in combination with a component which is optionally removed with a blade for actual pipe connection.

The depth of the fixed concave portion 6 is determined according to the height of the legs 122a, ... Which support the condenser 122 and secure the space for mounting the blower fan 123. The legs 122a are fixed at the four corners, one surface of the wall surrounding the fan mounting space is missing and opened, and the missing opening 6a and the air inlet 7 opening on any one side surface 3a of the lower block body 3 are formed. A gutter-shaped air flow path 8 is formed by tying. The component fixing recess 5 for the refrigerant compressor 121 is in a state in which the horizontal half is scraped off by the air passage 8 except near the lower end thereof, and the compressor 121 is inserted into the recess 5. When fixed, one half of the compressor projects into the air flow path 8 and is exposed to the air stream to cool and prevent overheating.

Among the parts fixed by being fitted into the part fixing recesses of the lower block body 3, as parts requiring heat insulation coating from the viewpoint of preventing dew condensation or improving thermal efficiency, for example, the heat exchanger 125 and the accumulator 126.
And the pipes attached to these, the upper block body 2
When the upper block body 2 and the lower block body 3 are overlapped with each other by forming a recessed portion at a position corresponding to the shape of the heat insulating coated components protruding from the lower block body, these components are The shape of the upper block body is determined so that it is surrounded by the block bodies 2 and 3 and is shielded from the outside air.

That is, specifically, in FIG. 1, when the upper block body 2 overlaps with the upper surface of the lower block body 3, it has a box shape as a whole, and its back surface 2a has the upper surface of the heat exchanger 125. The condenser 122 is provided with a concave portion (not shown) into which the half portion, the accumulator 126, etc. are to be fitted, and is fixed by surrounding the periphery of the condenser 122 and the plane forming the ceiling surface of the air passage 8. An opening 9 is provided to serve as an outlet for the air passing through.

The upper block body 2 and the lower block body 3
And the dowel holes 3b provided in the other block body, ...
In the case where the fixing force is insufficient in the method of combining the above, or the fixing by the dowel, the fastening bands 21 and 21 are further applied and fixed as shown in FIG. Further, the adhesive tape may be stretched over the joints of the block bodies and straddle the eyes.
In this way, the assembly of the compressed air dehumidifying device is completed, but the compressed air dehumidifying device is further housed in an appropriate cabinet if necessary.

In particular, when fitting and fixing a component that generates vibration, such as the compressor 121, when the supporting and fixing force of the fixing recess 5 is insufficient, the refrigerant compressor 121, as shown in FIG. A projecting edge 121a is integrally provided at the lower end of 121, and a gap 5a into which the projecting edge 121a can be fitted is also extended horizontally in the bottom of the fitting recess of the lower block body 3. By using the elasticity of the material forming the lower block body to insert the protruding edge 121a therein, a more stable fixed state can be obtained.

Further, with respect to the fixation of the refrigerant condenser 122, the fan 123 and the condenser 122 may be constructed separately, in which case the unnecessary leg 122a is removed,
Alternatively, the wall surface surrounding the fitting recess 23 may be provided with a projecting edge or a step portion, so that the condenser 122 may be supported in a state where a ventilation space is secured below the condenser. or,
The lower block body is preferably integrally formed for positioning and fixing the components, but the upper block body may be further divided into a plurality of parts as necessary.
The package frame may be divided in the left-right direction, and may be divided in the vertical and horizontal directions.

The apparatus according to the above-described embodiment is simple in that it does not require screwing for assembly and fixing, and the air flow path is ideal considering the arrangement of the refrigerator parts by the upper and lower block bodies. By being formed in such a manner, it is possible to surround the noise-generating refrigerant compressor or the like with a sound absorbing material or a vibration isolating material without overheating, and it is possible to significantly reduce operating noise. In addition, since all the refrigerator parts are supported by the package frame, there is no unreasonable force applied to the joints between the parts, and there is no risk of damage due to shocks during product transportation, so packing and packaging is also possible. It can be greatly simplified. Since the substrate itself has a heat insulating property, a component requiring a heat insulating coating is completely covered with a heat insulating material, has no dew condensation, and is energy efficient. The thermal insulation coating process is also easy and quick.

[0024]

According to the present invention, the components can be supported and fixed only by inserting the refrigerator components into the component fixing recesses provided in the package frame, so that no skill is required for assembly and the assembly time is short. Workability is improved. Further, since the parts are supported by being surrounded by the package frame made of a material having a cushioning effect, the packaging at the time of shipping can be simplified, and at the same time, a large cost reduction can be realized.

Since all the refrigerator parts are surrounded by a package frame having excellent sound insulation and vibration resistance, vibration noise is spread to the outside by using the substrate as a transmission medium or a resonance medium as in the conventional case. It does not come out and the driving noise is quiet. In particular, if the blocks that make up the package frame are made of different materials according to the characteristics of the device or made of a composite material that uses both plastic foam and rubber foam, the operation noise will be quieter and the parts will be fixed. You can get good products. For example, in the above embodiment, if the lower block body that supports the parts is made of a composite material in which rubber foam and plastic foam having good vibration damping properties are laminated,
Compared with the case of a single material, it has a large effect of suppressing vibration and noise, excellent fixing property of parts, and also has a great effect of preventing external damage by absorbing impact.

Since all the refrigerant pipes are arranged on or surrounded by the package frame having a high heat insulating property, the heat insulating property is improved and there is no fear of dew condensation, and the looseness of the pipe connecting portion due to operational vibration is also prevented. In addition, no unreasonable stress concentration occurs at the joint portion of the pipe body, and noise due to resonance phenomenon does not occur. Further, since the air flow path can be set ideally, the cooling efficiency of the blower is improved and the performance of the entire device is improved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an outline of an embodiment of the present invention.

FIG. 2 is an explanatory view showing an assembled state of the compressed air dehumidifying device of FIG.

FIG. 3 is an explanatory diagram showing a main part of another embodiment of the present invention.

FIG. 4 is an explanatory view showing an example of assembly of a conventional compressed air dehumidifying device.

[Explanation of symbols]

 1 Package Frame 2 Upper Block Body 3 Lower Block Body 4, 5, 6, 7 Component Fixing Recess 7 Air Inlet 8 Air Flow Path 9 Air Outlet 121 Refrigerant Compressor 122 Refrigerant Condenser 123 Blower Fan 125 Heat Exchanger 126 Accumulator

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical indication location F26B 25/00 F26B 25/00 G (72) Inventor Hajime Miyazawa 246, Koutaka, Susaka City, Nagano Prefecture Orion Machinery Co., Ltd. (72) Inventor Norihisa Takeuchi 246, Kouji, Osaka, Suzaka City, Nagano Orion Machinery Co., Ltd. (72) Minoru Yamagishi, 246, Kosaka, Osaka Machinery, Suzaka, Nagano Prefecture (72) Inventor Takashi Hirano 246 Kodaka, Suzaka City, Nagano Prefecture Orion Machinery Co., Ltd. (72) Inventor Masaaki Yodo Masasaka Sudo, Nagano Prefecture 246 Kodaka, Orion Machinery Co., Ltd. (72) Inventor Masato Sato Suzaka City, Nagano Prefecture 246 Kodaka, Orion Machinery Co., Ltd. (72) Inventor Yoshiyuki Taguchi 246 Kodaka, Susaka City, Nagano Orion Machinery Incorporated (72) Inventor Hirohiro Sakaguchi Orion Machinery Co., Ltd.

Claims (3)

[Claims] 1. A device having a refrigerator, in which parts constituting the refrigerator are made of a molded product of plastic foam and / or rubber foam and can be divided into a plurality of blocks to form a series of air flow paths. A refrigerating machine assembling structure characterized in that a refrigerating machine is assembled in the package frame by fitting and fixing the parts in a component fixing recess provided in the package frame. . 2. A package frame has a box shape composed of an upper block body and a lower block body that are vertically separable, and a series of air flow paths connecting between a plurality of openings provided in the package frame. 2. The assembly structure according to claim 1, wherein the refrigerant compressor and the refrigerant condenser forming the refrigerator are arranged and fixed in this order from the air inlet to the outlet of the air flow path. 3. A package block lower block body is formed with a component fixing recess corresponding to the shape of the component, and the upper block body and the lower block body of the package frame containing the refrigerator are clamped and fixed by a fixing band. 3. The assembly structure according to claim 2, wherein