JP3136251B2 - Assembly structure of refrigerator parts - Google Patents

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 mounting a refrigerator component on a substrate in a refrigerator and various apparatuses having the refrigerator.

[0002]

2. Description of the Related Art As a device provided with a refrigerator, components of the refrigerator, such as various types of air conditioners and various types of cooling devices, have a main configuration of the device, and for example, dry compressed air is supplied to a pneumatic device. Such as a compressed air supply device for air conditioning, the components such as an air compressor and air tank are integrated with a compressed air dehumidifier that cools and dehumidifies compressed air with a refrigerator, and a refrigerator unit is installed in part of the device. There are types that are. In both types of devices,
When assembling a refrigerator, it is common practice to fix the components of the refrigerator on a mounting plate made of steel plate by screws or the like, and then assemble the components by connecting the components to each other by piping or wiring. Is the way.

For example, taking a compressed air dehumidifier as an example,
As shown in the assembly system diagram in FIG. 7, the compressed air dehumidifier 120 includes a refrigerator component such as a refrigerant compressor 121, a refrigerant condenser 122, a refrigerant decompressor 124, and a fan 123 for the condenser. A heat exchanger 125 for cooling and dehumidifying compressed air incorporating a refrigerant evaporator is provided. The heat exchanger 125 is connected to and integrated with a large number of connecting parts, and is fixed to a mounting board 127 provided at the bottom of the case, thereby providing compressed air. The dehumidifier is assembled.

[0004] This assembling work involves assembling the support frame 131 of the fan 123 and the condenser 122, attaching the support legs 132 of the heat exchanger 125, and the like, as in the case of the compressor 121. 127 includes an operation of screwing via a rubber washer or the like for vibration isolation as needed, and furthermore, after connecting and fixing the parts to each other by piping and wiring, the heat exchanger 125 and the accumulator 1
26. Parts that need to be covered with a heat insulating material in order to prevent dew condensation and enhance thermal efficiency, such as a suction side pipe of a refrigerator, are provided with heat insulating covering members 128 prepared in advance according to their shapes. , 129 and the like are fixed. Reference numeral 101 denotes a cover plate that covers screws and the like protruding below the mounting board.

[0005]

[Problem] In the conventional assembling of the refrigerator parts and the assembling work of the compressed air dehumidifier 120, there are many places to be fixed by screws, and it takes time to assemble, and the assembling work requires skill. There are drawbacks such as. In addition, since the refrigerator generates noise, the inner surface of the case is covered with a sound absorbing material, and measures are taken such that the vibrating member is screwed and fixed through a thick cylindrical anti-vibration rubber. Vibration, resonance, and resonance phenomena were prevented, and noise was prevented from leaking out of the case. However, in the conventional apparatus, since the refrigerator parts that generate vibration and noise, including the compressor, were directly screwed and fixed to the steel plate substrate,
The refrigerator case works as a resonance box, and the sound absorbing material and the vibration damping material stretched on the inner surface of these cases cannot sufficiently exhibit the noise and vibration suppressing effect.

[0006]

SUMMARY OF THE INVENTION A first object of the present invention is to disclose an assembling structure of a refrigerator component which can be assembled quickly and easily without the need for screwing and fixing the refrigerator component. Second embodiment of the present invention
It is an object of the present invention to disclose an assembling structure of a refrigerator component that has low vibration and noise and low operating noise. A third object of the present invention is to disclose an assembling structure of a refrigerator component having a heat insulating coating, which is rich in heat insulation, has high energy efficiency, and is easy to mount.

[0007]

SUMMARY OF THE INVENTION The first gist of the present invention is that in a device provided with a refrigerator, the components constituting the refrigerator are formed on a three-dimensional molded substrate made of a molded article made of plastic foam and / or rubber foam. It is fitted into the provided parts fixed recess Turkey
And the assembly structure of the refrigerator component is fixed to the three-dimensional molded substrate .

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 and the like can be used. it can. Also, as the foamed rubber, acrylonitrile butadiene rubber foam,
Synthetic rubber materials such as butyl rubber foam and styrene butadiene rubber foam, and natural rubber foam can also be used.
These materials can be used alone or as a composite material in which a plastic foam and a rubber foam are laminated.

As a 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 high rigidity is integrally formed on the rubber foam layer. Can be used. Such a material firmly holds the component by the component fixing recess provided in the plastic foam layer, and the lower rubber foam layer attenuates the vibration and suppresses the transmission of the vibration and the noise. Of course, in consideration of characteristics based on the type and composition of the plastic foam and the rubber foam, or the ease of molding and the ease of cutting at the time of assembling, these may be used alone.

According to a second aspect of the present invention, in the assembling structure of the refrigerator parts defined in the first aspect, among the parts constituting the refrigerator, the parts which require heat insulation coating are made of plastic foam and / or plastic foam. Alternatively, there is provided an assembling structure of a refrigerator component, which is wrapped by a covering block made of a molded product made of a rubber foam. These coated block bodies may be covered with heat from above, for example, as a cap-shaped integral molded product, or may be configured as a coated block piece that can be divided into two parts in the horizontal direction, and frozen from the horizontal direction. The components may be wrapped in the covering block so as to sandwich the machine parts. If such a covering block body is used, parts requiring heat insulation covering are completely wrapped by the three-dimensional molded substrate and the covering block body, which are rich in heat insulation, and the heat insulation is improved without dew condensation. , Energy efficiency is also improved.

[0011] A third gist of the present invention is that a component requiring heat insulation coating among components constituting a refrigerator is a coated block made of a molded article made of plastic foam and / or rubber foam. in encapsulated state, and characterized in that it is fixed to the three-dimensionally shaped substrate by Rukoto is fitted into component fixing recess formed in the three-dimensionally shaped substrate made of a plastic foam molding and / or rubber foam molded article In the assembly structure of the refrigerator parts.

In the assembly structure according to the second aspect, the refrigerator component is first fitted and fixed in a component fixing concave portion provided on a three-dimensional molded substrate having high heat insulation and elasticity, and then the component is subjected to heat insulation coating. Although advantageous in the case, the assembly structure according to the third aspect is that, for example, a component having a complicated shape is formed by placing a component requiring heat insulation coating in a mold and forming the heat insulation coating around the component. If the parts that are not fixed and fixed to the three-dimensional molded board are used as unit parts with heat insulation coating, they can be fixed and fixed to the board extremely stably.
In addition, since the adhesion between the heat insulating material and the component is good, the heat insulating property is also improved.

[0013]

Embodiment 1 FIGS. 1 to 5 show an assembly process of a compressed air dehumidifier according to a first embodiment of the present invention. The compressed air dehumidifier comprises a refrigerator and a heat exchanger accommodating an evaporator of the refrigerator, and the components constituting the device are fixed to a three-dimensional molded substrate 1 as shown in FIG. . The substrate 1 is composed of an upper plate 1a made of a plastic foam and a lower plate 1b made of a rubber foam integrally provided so as to line with the upper plate 1a. Component fixing recesses 2a to 2c formed in accordance with the shape of the base of the component to be formed are provided. These component fixing recesses are integrally formed in advance by die molding. In actual assembly, a component provided by removing a predetermined portion with a blade may be used in some cases. The three-dimensional molded substrate may be composed entirely of the same material, or when high rigidity is required, a three-dimensional molded substrate may be formed by integrally forming a foam molding on a plywood or metal plate.

In the component fixing recess 2a, a refrigerant condenser 12 and an intake fan 12a attached thereto are fixed by fitting the vicinity of the lower end thereof into the recess 2a.
The refrigerant compressor 11 is fixed to the component fixing recess 2b by fitting the base thereof. Similarly, in the component fixing recess 2c, the lower half of the heat exchanger 14, which reheats after cooling and dehumidifying the compressed air, is placed and stored and fixed, and the refrigerant evaporator in the heat exchanger is connected to the lower half. An accumulator 13 interposed between the refrigerant compressor 11 is housed and fixed. The accumulator 13 has its lower end 13a supported by the component fixing recess 2c, and its upper end located at the refrigerant pipe 1 end.
It is fixed by being supported by 3b.

In this way, the components of the compressed air dehumidifier fixed to the three-dimensional molded substrate 1 are more firmly positioned and fixed to each other by pipes, and further, are subjected to electrical wiring and the like, and the components are assembled. Ends. Among these components, since the heat exchanger 14 and the accumulator 13 form dew during operation, this includes a rectangular parallelepiped made of the same polypropylene foam as the material of the upper plate 1a of the substrate 1, as shown in FIG. Heat exchangers 14 connected by these pipes in the block
A covering block 3 having a space 3a capable of accommodating the water and the accumulator 13 is prepared, and the covering block 3 is put on the covering block 3 to perform a heat insulating covering process of the dew condensation component. The covering block 3 is also effective for fixing and holding the accumulator 13 and plays a role of complementing the component fixing recess 2c.

At this time, dowels or dowel holes are provided on the three-dimensional molded substrate side and the covering block body side to fix the substrate 1 and the covering block body 3, but instead, for example, around the accumulator 13. A rectangular or cylindrical coated block body is molded with a plastic foam, or a molded product is fitted and heat-insulated and prepared, and the heat-insulated coated component shape is prepared. Accordingly, a component fixing recess may be formed, a component may be fitted and fixed in the concave portion, and then components such as piping may be connected to each other.

The components of the compressed air dehumidifier assembled in this manner are further fixed to the cabinet panel 15 provided with the ventilation opening 15a on the front surface by screws using the frame 12b of the condenser 12, and the like. As shown in FIG. 5, the top plate edge 15 b is placed on the top surface of the covering block 3,
It may be fixed with an adhesive, an adhesive tape, or the like, or may be fixed by using a wood piece, a plastic piece, or the like which is provided by being embedded in the covering block before molding the covering block. Of course, a three-dimensional molded substrate for holding the refrigerator may be placed on the bottom plate of the cabinet case manufactured in advance.
Reference numeral 16 denotes an operation plate on which a power switch, an adjustment dial, and the like are mounted.

The apparatus according to the first embodiment does not require screw fixing for assembling parts, and the parts requiring heat insulation coating have heat insulating properties on the substrate itself.
Completely wrapped in heat insulation, no condensation and energy efficient. Insulation coating can be easily and quickly performed. The substrate is
Since it has a rubber foam in the lower layer, the damping effect by vibration absorption is high, and the driving sound is quiet.

[0019]

Embodiment 2 FIG. 6 shows a second embodiment of the present invention. The three-dimensional molded substrate 21 is formed of a polypropylene foam, and is for assembling a compressed air dehumidifying device as in the first embodiment. Therefore,
Since the components making up the apparatus are exactly the same, components having the same function will be described with the same reference numerals. The component fixing recess 2 into which the lower half of the heat exchanger 14 can be fitted is mounted on the substrate 21.
2. a fixed recess 23 into which the lower part of the refrigerant compressor 11 can be fitted;
Refrigerant condenser 12 and blower fan 12 attached to its lower part
a is provided with a fixed concave portion 24 to be fitted and fixed, a fixed concave portion 25 in which a lower portion of the accumulator 13 is to be stored and supported and fixed.

The fixing recess 24 supports the condenser 12 and secures a space for the blower fan 12a.
The depth is determined according to the height of the fan, and one surface of the wall that fixes and surrounds the fan 12a is missing and open,
A gutter-shaped air flow path 27 is formed by connecting the opening 24a and the outside air inlet 26 opening on one side of the substrate 21. Except for the vicinity of the lower end of the fixing recess 23 for the refrigerant compressor 14, a lateral half thereof is cut off by the air passage 27, and when the compressor 11 is fixed to the recess 23, One half of the compressor protrudes into the air flow path 27 and is exposed to the outside air flow, thereby preventing overheating.

As in the case of the first embodiment, the three-dimensional molded substrate 2
Among the components fixed by fitting into the component fixing recesses of No. 1 as components requiring heat insulation coating from the viewpoint of preventing dew condensation and improving thermal efficiency, the heat exchanger 14, the accumulator 13, and these pipings include: The heat insulating coating is performed by a coating block 31 made of the same material as the substrate 21.
In FIG. 6, the covering block body 31 is
1 is large enough to overlap the top surface, and its back surface 3
2 includes the upper half of the heat exchanger 14 and the accumulator 13
And the like, into which the air passage 2 is inserted.
An opening 33 to be an outlet of the air passing through the condenser is provided so as to surround the flat surface constituting the ceiling surface of No. 6 and the periphery of the condenser 12.

The coated block body 31 is
.. And the dowel holes 28, 28,... When the fixing force is insufficient with the dowels, the same applies to the case of the first embodiment. However, as a simple fixing method between the covering block body and the three-dimensionally formed substrate, a straddle between the two is adopted. For example, it is possible to employ an adhesive tape, or to wind and fix a band. In this way, the assembly of the compressed air dehumidifying device is completed. However, if necessary, the device may be stored in an appropriate cabinet.

In the apparatus according to the second embodiment, not only the assembling and fixing are simplified, but also the air flow path is ideal in consideration of the arrangement of the refrigerator components by the three-dimensional molded substrate and the covering block. The operation noise can be significantly reduced by being formed in a suitable manner and by surrounding the noise-generating refrigerant compressor or the like with a sound absorbing material or a vibration damping material without overheating.
In addition, since the refrigerator component is supported by the three-dimensional molded substrate and the covering block body, the fixing of the components to each other can be simplified, and there is no risk of damage due to a shock during transportation of the product. Can also be greatly simplified.

[0024]

According to the present invention, the component can be supported and fixed only by placing or inserting the refrigerator component in the component fixing recess provided in the three-dimensional molded substrate, so that no skill is required for assembly. Assembly time is short, and significant cost reduction is realized. Since all the refrigerator components are present on a substrate having excellent sound insulation and vibration damping properties, vibration noise does not directly go out to the outside with the substrate as a transmission medium or a resonance medium as in the past. In particular, if the three-dimensional molded substrate is made of a composite material using a combination of a plastic foam and a rubber foam, the effect of suppressing vibration and noise is remarkable compared to the case of a single material,
It has excellent fixation of parts, absorbs external shocks, and has a great effect of preventing damage to the device. Since the refrigerant pipes are all arranged on a three-dimensional molded substrate with high heat insulation or surrounded by a covering block, the heat insulation is improved and there is no worry about dew condensation, and there is no loosening of the pipe connection due to operation vibration. Also, no noise due to the resonance phenomenon or the like occurs.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a main part of a first embodiment of the present invention.

FIG. 2 is an explanatory view showing a state where components are mounted on the board of FIG. 1;

FIG. 3 is an explanatory view showing an example of a covering block body which is a main part of the present invention.

FIG. 4 is an explanatory diagram showing a cabinet panel of the device according to the first embodiment.

FIG. 5 is an explanatory view showing an assembled state of the first embodiment.

FIG. 6 is an explanatory view showing a second embodiment of the present invention.

FIG. 7 is an explanatory diagram showing an example of the related art.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1, 21 Three-dimensional molded board 1a Upper layer board 1b Lower layer board 2a-c, 22, 23, 24, 25 Component fixing concave part 3, 31 Coating block body 11 Refrigerant compressor 12 Condenser 12a Fan 13 Accumulator 14 Heat exchanger 26 Outside air inlet 33 air outlet

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazu Miyazawa 246 Osachiko, Oaza, Suzaka City, Nagano Prefecture Inside (72) Inventor Norihisa 246 Sachika, Oaza, Suzaka City, Nagano Prefecture Orion Machinery Co., Ltd. (72) Inventor Minoru Yamagishi Minoru, Kozuki, 246, Oji, Suzaka-shi, Nagano Inventor Takashi Hirano 246, Kodaka, Oaza, Suzuka, Nagano, Japan Orion-Machine Co., Ltd. (72) Masaaki Yodo 246, Kodachi, Sazaka, Nagano Pref.Orion Machinery Co., Ltd. 246 Orika Machine Co., Ltd. (72) Inventor Hirohiro Sakaguchi 246 Orika Machine Co., Ltd. The inner (56) references JitsuHiraku flat 3-83736 (JP, U) (58 ) investigated the field (Int.Cl. ^7, DB name) F25B 1/00 F24F 5/00

Claims (4)

(57) [Claims] In a device provided with a refrigerator, a component constituting the refrigerator is fitted into a component fixing recess provided on a three-dimensional molded substrate made of a molded product made of a plastic foam and / or a rubber foam. is the solid formed by Rukoto
An assembling structure of a refrigerator component fixed to a shaped substrate . 2. A component requiring heat insulation coating among components constituting a refrigerator is surrounded by a coating block made of a molded article made of plastic foam and / or rubber foam. Assembly structure. 3. A refrigerating machine component assembling structure according to claim 2, wherein the covering block is formed of a cap-shaped integral molded product or a block piece which can be divided into two parts in the lateral direction. 4. In a state in which a component requiring heat insulation coating among components constituting a refrigerator is wrapped by a covering block made of a molded product made of plastic foam and / or rubber foam, plastic It is fitted to the component fixing recess formed in the three-dimensionally shaped substrate made of foam molding and / or rubber foam molded product such by Rukoto
An assembling structure of a refrigerator component fixed to a three-dimensional molded substrate .