JPH09310889A - Refrigeration equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS TO BE SOLVED] Disclosed is a refrigerator which has a small amount of screwing and fixing work for a refrigerator component, can be assembled quickly and easily, has little vibration and noise, and has a high durability. SOLUTION: A component support frame 2, 3, 4 made of a plastic foam molding and provided with component fixing recesses for positioning and supporting the refrigerator components 121, 123 positions and fixes the refrigerator components therein. Component fixing recess 5,
6 and 7 and an air flow path that connects a plurality of air ports 8, 9 and 2a that open to the outer surface of the component support frame in series, and the refrigerant compressor 121 and the fan motor among the refrigerator components. A vibration generating component such as 123 is positioned and fixed in the component fixing recesses 5 and 6 through auxiliary frames 10 and 60 composed of frame reinforcing bodies 10b and 61 and component mounting means 10a and 62 provided in the frame reinforcing bodies. Refrigerating device characterized by being.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly structure of refrigerating machine parts constituting a refrigerating machine, and more particularly to improvement of a frame structure for positioning and fixing the refrigerating machine parts.

[0002]

2. Description of the Related Art When assembling a refrigerator, it is necessary to fix components constituting the refrigerator on a mounting plate made of steel plate by screwing or the like, and then connect these components by piping or wiring. , Is a common method.

Taking, for example, a refrigerating apparatus incorporated in a compressed air dehumidifier, as shown in an assembly system diagram in FIG. 8, the compressed air dehumidifier includes a refrigerant compressor 121, a refrigerant condenser 122, and a refrigerant. A compressor component such as a decompressor 124 and a condenser fan 123, and a compressed air cooling / dehumidifying heat exchanger 125 in which a refrigerant evaporator of the refrigerator is installed in a tank having a compressed air inlet / outlet are provided. The compressed air dehumidifying device is assembled by fixing together with a large number of connecting parts that connect and integrate these to a mounting plate 127 made of a steel plate provided at the bottom of the case 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 through a vibration-proof rubber washer 135, etc., if necessary. Further, after connecting and fixing parts to each other by piping or wiring, the heat exchange is performed. Parts such as the container 125, the accumulator 126, and the suction side pipe of the refrigerator that require coating with a heat insulating material in order to prevent dew condensation and improve thermal efficiency are prepared in advance according to their shapes. Heat insulating covering member 128,
129 etc. are attached and fixed. 1
Reference numeral 01 is a cover plate that covers screws and the like that project to the lower side of 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 it through a thick-walled cylindrical vibration-proof rubber 135, ... With the substrate 127, the vibration, resonance, resonance phenomenon, etc. of the member are prevented, and noise leaks out of the case. Was prevented. However, in the conventional device, the refrigerator parts that generate vibration and noise, including the compressor, are directly screwed and fixed to the substrate made of steel plate, so the refrigerator case functions as a resonance box. The sound absorbing material and the vibration damping material stretched on the inner surface could not 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 that requires little or no screwing and fixing work 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. A third object of the present invention is to disclose a refrigerating machine assembly structure having high heat insulation, high energy efficiency, and high durability.

[0008]

A first aspect of the present invention has a component support frame having a component fixing recess for positioning and supporting a refrigerator component, which is made of a molded product of a plastic foam and / or a rubber foam, In a device in which a refrigerating machine component is mounted in the component fixing recess and connected and fixed to each other to form a refrigerating cycle, at least a vibration generating component of the refrigerating machine component is provided on a frame reinforcing body and the frame reinforcing body. A refrigerating apparatus is characterized in that it is positioned and fixed in the component fixing recess through an auxiliary frame composed of component mounting means.

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.

Among refrigerating machine parts, particularly parts that generate vibrations such as a refrigerant compressor and a fan motor for a condenser, and parts having a large mass, are directly connected by the part fixing recesses formed of the plastic foam molding. When supported and fixed, repeated loading over a long period of time may lead to fatigue and deformation of the component fixing recesses, impairing the supported and fixed state. An auxiliary frame is used to prevent such a decrease in the supporting and fixing force of the component supporting frame.

[0012] The auxiliary frame supports the entire weight with a small area below the abutting part fixing recess like the parts which generate the vibrations and the water cooler in which the refrigerant evaporator is housed. As a result, it is used for a component that locally applies a large pressing force to the component fixing recess. The auxiliary frame is composed of a frame reinforcing body that evenly distributes the load of the component to the component supporting frame and reinforces the component supporting frame (or the component fixing recess), and a component mounting means fixed to the frame reinforcing body. .

The frame reinforcing member is preferably a member having a shape capable of abutting and integrating with the component supporting frame in a large area. For example, a plate-shaped member, a plate-shaped member provided with projections or projecting edges, an uneven plate or For example, corrugated sheet. These frame reinforcements may be attached to the component support frame by adhering to the component support frame surface, by fitting or crowning in the component fixing recesses, or by using both of them together, or The frame reinforcing body (or the auxiliary frame formed by fixing the component attaching means to the frame reinforcing body) may be used as an insert at the time of molding the component supporting frame, and embedded and supported in the component supporting frame as an integrally molded product.

The component attaching means is a fixing bolt or a rising piece erected on the frame reinforcing body, or a fitting hole formed on the frame reinforcing body, such as a shape or a property of a component to be supported and fixed (for repair, replacement, etc.). Whether or not a detachable structure is required) is appropriately selected. It is necessary that the material of the frame reinforcement has higher rigidity than the foam molded product that constitutes the component support frame, and if it is metal, plastic, wood-based material or similar plastic foam material, For example, a plastic foam having a lower foaming degree than the plastic foam.

The auxiliary frame has a frame reinforcing member,
It is composed of a plurality of split blocks made of a foam molded product having a rigidity higher than that of the foam material forming the component support frame, and a part or the whole of the refrigerator component is housed in the split blocks to secure the component fixing recess. Alternatively, it may be fitted and fixed. Each of the split blocks is provided with a recess corresponding to the concavo-convex shape of the refrigerator part as a part mounting means, so that the block is surrounded and fixed at least in a state of being in close contact with the periphery of the part. And in addition,
It is desirable that the shape of the fixed state can be maintained and the component can be mounted and fixed to the component support frame by being fitted into the component fixing recess.

Vibrations and loads of the refrigerator parts are distributed to the frame reinforcing body having a large area through the component mounting means, and are damped, while being attenuated, on the surface of the component supporting frame which abuts on the reinforcing body.
It will be transmitted uniformly. Also, the frame reinforcement is
Due to the rigidity, deformation of the component fixing recess is prevented against vibration and load. Unlike a foam molded article that is relatively liable to be deformed or damaged, the component mounting means is hardly damaged even if the component is repeatedly attached and detached for maintenance, and maintenance is easy. Excellent durability.

According to a second aspect of the present invention, in the refrigerating apparatus defined in the first aspect, the component support frame has a box shape which can be divided into a plurality of block bodies, and the refrigerator component is positioned and fixed therein. It is composed of a package frame provided with a component fixing recess to be formed and an air flow path that connects a plurality of air ports opened to the outer surface of the component support frame in series, and a panel shape is formed on the entire bottom surface of the package frame. A refrigerating apparatus is characterized in that a frame reinforcing body is integrally provided.

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 recesses formed in accordance with the shape and function of the component. 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. If a panel-shaped frame reinforcement is attached to the entire bottom surface by bonding it from the outside, or if it is embedded in the bottom, sufficient strength can be obtained without increasing the thickness of the component support frame bottom. This is advantageous for downsizing the device.

For example, when the package frame has a box shape composed of an upper block body and a lower block body which can be divided in the vertical direction, a component fixing recess corresponding to the shape of the component is formed in the lower block body, When the parts are fitted in the part fixing recesses provided in this, since the lower block bodies are integrally configured, they act as a substrate for fixing the positions of the refrigerator parts to each other without fixing the blocks 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. Furthermore, stack the upper block body on the lower block body,
If the refrigerator is included and the upper block body and the lower block body are tightened and fixed by the fixing band, the effect of the package frame becomes more remarkable.

In the refrigerating apparatus according to the present invention, since the refrigerating machine parts are assembled by the part supporting frame made of a material having heat insulation, elasticity, sound insulation, vibration damping, etc. The sound becomes quiet. To assemble,
Assembling is simple, quick and easy as it is supported by the fixing recess of the package frame with little screwing and fixing. In addition, the package frame, except for the air flow path, is in a state in which all refrigerator parts are enclosed, so noise is blocked, heat insulation characteristics are excellent, and impact resistance is improved, so energy efficiency and durability are improved. A significant cost reduction is realized by improving the efficiency and simplifying the transportation packaging.

The auxiliary frame prevents deformation of the component supporting frame when fixing the vibrating component or the heavy component, improves the strength, extends the product life, and facilitates maintenance. In addition, when selecting the foam material of the component support frame, there is less restriction on the purpose of fixing the component, and it is possible to select a material that excels in vibration damping, thus increasing the degree of freedom in selection.

[0022]

1 to 3 show a first embodiment of the present invention, in which a refrigerant evaporator of a refrigerator is stored in a heat exchange container, which is a compressed air flow path, so that compression is performed. It serves as an air dehumidifier. The component support frame for positioning and fixing the refrigerator parts is composed of an upper block body 2 and a lower block body 3, and is a package for fixing the refrigerator parts in predetermined positions in a state of being wrapped in these upper and lower block bodies 2, 3. It constitutes the frame 1. Each of the blocks 2 and 3 is formed of polypropylene foam. The components themselves that make up the compressed air dehumidifier are
In FIG. 8, there is no difference from what is shown as the prior art, so the description will be given by attaching the same reference numerals to the parts in FIG.

The lower block body 3 serves as a mounting substrate for fixing the positions of the parts, and a reinforcing body 3a made of a rectangular steel plate is formed on the back surface of the lower block body 3 with an adhesive.
It is provided integrally bonded. The reinforcing body 3a is fitted into a concave surface provided by recessing upward by an amount corresponding to the plate thickness of the reinforcing body 3a, leaving a slight width around the back surface of the lower block body 3 to form the lower block body. The back surface of 3 has a flat surface with almost no step.

On the upper surface of the lower block body 3, the heat exchanger 1
The component fixing recess 7 into which 25 can be fitted, the fixing recess 5 for positioning and fixing the refrigerant compressor 121, the refrigerant condenser 122 and the blower fan 123 attached to the lower part thereof, and the fixing recess 6 for fixing are provided. There is. These component fixing recesses are integrally molded in advance by a molding die, but since they are plastic foams, it is easy to use unnecessary tools to remove unnecessary parts and repair them in actual piping connection. it can.

In order to secure the mounting space for the blower fan 123 and to support the condenser 122, the fixed recessed portion 6 has a height of the peripheral wall 6a surrounding it defined. This blower fan 12
The fixing structure of No. 3 will be described below. First, as shown in FIG. 3, a pair of sleeper-like projections 6b and 6b are provided in parallel near the center of the bottom of the fixed recess 6. Notches 6d and 6d are provided on the upper facing surfaces of the protrusions 6b and 6b, and a box-shaped reinforcement 61 formed by providing a rising edge around a rectangular steel plate, and the reinforcement 61. An auxiliary frame 60 having a substantially circular mounting hole 62 formed as a component mounting means is fitted and fixed in the central portion of the fan, and the blower fan 12 is further fitted into the mounting hole 62.
The blower fan 123 is firmly fixed by inserting the third fan motor 123a.

One side of the peripheral wall 6a surrounding the fan mounting space is missing and opened to form an air inlet 8. Similarly, an air inlet 9 is opened on any one side surface surrounding the compressor fixing recess 5. There is. The fan mounting space and the fixed recess 5 of the compressor are
A part of the peripheral wall 6a forming the boundary is cut off, and the two are in communication with each other. The bottom surface of the fixing concave portion 5 is slightly depressed in a rectangular box shape, and the compressor fixing bolts 10a, ... Are attached to the reinforcing member 10b made of a rectangular metal plate having a rising edge around the bottom surface. The auxiliary frame 10 formed as a protrusion is adhered and integrally fixed. Such an auxiliary frame 10 may be integrally formed so as to embed and support the reinforcing body 10b in the foam molded article by exposing the auxiliary block 10 to the foamed molded article by embedding it simultaneously with the lower block body as an insert instead of adhering. .

Reference numeral 11 is a fixed recess of a control box for controlling the compressor, and 12 is a mounting opening of an auxiliary frame 16 (see FIG. 1) made of a metal panel for holding the compressed air inlet and outlet pipes 16a and 16b. . A step portion 6c is formed at the upper edge of the peripheral wall 6a that should surround the blower fan, and the lower end peripheral edge portion of the auxiliary block body 4 is fitted into the step portion 6c to be fixed. Auxiliary block body 4
A wind tunnel section 4a for the blower fan 123 and a fixed recess section 4b of the refrigerant condenser 122, which is composed of a peripheral wall surrounding the upper space of the wind tunnel section 4a in a U-shape, are formed on the inside. 4c
Is the entrance and exit of the refrigerant pipe.

The upper block body 2 includes a refrigerant condenser 122.
The air outlet 2a is provided according to the size of the.
Therefore, a refrigerator component (including a refrigerant evaporator as a compressed air cooler) is connected to and housed in the lower block body 3, and further, the refrigerant condenser 122 is fixed to the auxiliary block body 4 so that other parts are attached. After connecting with the upper block body 2,
As shown in FIG. 1, the fastening bands 15,
When it is fastened and fixed with 15, ..., the refrigerator is completed, and a series of air flow paths from the air inlets 8 and 9 to the air outlet 2a are formed with the operation of the blower fan 123.

Among the components fixed by being housed in the component fixing recesses of the lower block body 3, as components 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. Also, the drain discharge pipe 125a of the heat exchanger 125
Are taken out of the package frame 1 through the holes provided in the corresponding portions of the reinforcing body 3a.

The upper block body 2 and the lower block body 3
In addition to the fastening band 15,
An adhesive tape may be stretched over the eyes between the blocks. In this way, the assembly of the refrigerator (compressed air dehumidifier) is completed, but if necessary, the compressed air supply device can be stored together with the air compressor in an appropriate cabinet and connected together. Is completed.

4 to 6 show a second embodiment of the present invention. Unlike the case of the first embodiment, the component supporting frame is different from the package frame enclosing the component in that the component supporting frame 31 is integrally provided so as to line the upper layer plate 31a made of plastic foam. It may be made from the lower layer plate 31b made of rubber foam. Between the upper layer plate 31a and the lower layer plate 31b,
A reinforcing member 65 made of a metal plate, a plastic plate, a veneer plate or the like is integrally interposed by adhesion or the like. The upper layer plate 31a is provided with component fixing recesses 32a to 32c corresponding to the shapes of the components to be fitted and fixed.

On the component fixing frame 31, a refrigerant compressor 41, a refrigerant condenser 42, a blower fan 42a, a heat exchanger 44 for compressed air and a refrigerant evaporator, an accumulator 43,
If the control box mounting panel 46 and the like are fixed and the pipe connection (43b) and the like are performed, a refrigerator as a compressed air dehumidifying device is assembled, but among these components, particularly the refrigerant compressor 41 that is a vibration generating component. And blower fan 42a
, And the fan motor fixing pieces 67, 67 as component mounting means in advance in the corresponding positions of the component fixing recesses 32b, 32a in the reinforcing body 65. It is projected. These vibration sources and heavy parts include a reinforcing member 65 having a high rigidity and a large area, and a part mounting means (6
6 and 67), it is firmly held, and the vibration is widely and evenly dispersed and reduced to be absorbed by the lower plate. Appropriate cabinet panel 4
By surrounding these parts with 5b and the auxiliary part fixing frame 33, a refrigerating apparatus as shown in FIG. 6 is completed.

FIG. 7 shows an essential part of the third embodiment of the present invention, and shows another structure for fixing a refrigerant compressor 121, which is a heavy component that generates vibration. . The auxiliary frame 50 is composed of a pair of left and right split blocks 51, 52 made of a material (or a material having high rigidity) having a lower foaming rate than the component support frame 59, and each split block 51, 52 is a space 5 in which the left and right halves of the lower half of the compressor 121 are to be housed, respectively.
3, 54 are formed. If the lower half of the compressor 121 is surrounded by this split block and the lower part of the split block is fitted into the component fixing recess 58 formed in the component support frame 59 as it is, the split blocks 51, 52 are formed.
Are held in the component fixing recess 58 while the compressor is pressed.

The auxiliary frame composed of the split block serves as a reinforcing body for strengthening the component fixing recess 58, and the void 5 formed therein according to the component shape.
3, 54 act as component mounting means. The fixing by the split block enables quick mounting and fixing of the parts, and since the vibrating member is doubly wrapped by the foamed material, the effect of preventing noise and damping of vibration is high. Further, since the auxiliary frame 50 is a material having elasticity similar to the material of the component fixing concave portion, the abutting portions of the both are
Since excessive force is not applied, the deformation over time is extremely small.

[0035]

[Effect] In the device of the above example, the air flow path is ideally formed by the upper and lower block bodies in consideration of the arrangement of the refrigerator components, and the refrigerant compressor that generates noise is overheated. It can be surrounded by sound-absorbing materials or vibration-proofing materials, and can significantly reduce operating noise.If all the refrigerator parts are supported by the package frame, unreasonable force will be applied to the connecting parts of the parts. Also, since there is no risk of damage due to shock during product transportation, packing packaging can be greatly simplified, and for parts that require heat insulation coating, the part support frame itself has heat insulation, It is completely wrapped in a heat insulating material and has excellent features such as no condensation and good energy efficiency.

In particular, when mounting a component that generates vibration or noise or has a large weight, it is fixed to the component support frame via the auxiliary frame. As a result, they are dispersed or absorbed and transmitted to the component support frame, so that they withstand long-term use and do not undergo deformation or the like. Further, the mounting structure of these parts does not wear even after repeated attachment and detachment, and has high rigidity, which facilitates maintenance. Furthermore,
Since the necessity of determining the strength required for the component support frame based on these vibration components has been greatly reduced, the degree of freedom in selecting materials has increased, and materials with better vibration damping, soundproofing and heat insulation effects have been selected. It can be selected and cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a refrigeration apparatus of the present application.

FIG. 2 is an explanatory sectional view taken along the line AA of FIG. 1;

FIG. 3 is an explanatory diagram showing a configuration of a package frame of the refrigerating apparatus of FIG.

FIG. 4 is an explanatory diagram showing a component support frame according to a second embodiment of the present invention.

5 is an explanatory view showing a state in which a refrigerator component is mounted on the component support frame of FIG.

6 is an explanatory diagram showing a completed assembly state of the apparatus of FIG.

FIG. 7 is an explanatory diagram showing a main part of a third embodiment of the present invention.

FIG. 8 is an explanatory diagram showing an example of the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Package frame 2 Upper block body 3 Lower block body 4 Auxiliary block body 5, 6, 7, 11 Component fixing recesses 8, 9 Air inlet 2a Air outlet 10, 50, 60 Auxiliary frame 16 Mounting panel 121 Refrigerant compressor 122 Refrigerant condensing Device 123 Blower fan 125 Heat exchanger 126 Accumulator

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Tatsuo Yamazaki Inventor Tatsuo Yamazaki 246 Kodaka, Suzaka City, Nagano Orion Machinery Co., Ltd.

Claims (3)

[Claims] 1. A component support frame comprising a molded product of a plastic foam and / or a rubber foam and having a component fixing recess for positioning and supporting a refrigerator component, wherein the refrigerator component is in the component fixing recess. In a device that is mounted and connected and fixed to each other to form a refrigeration cycle, at least a vibration generating component of the refrigerator components includes a frame reinforcing body and a component mounting means provided on the frame reinforcing body. The refrigerating apparatus is characterized in that it is positioned and fixed in the component fixing recess via the. 2. A component support frame has a box shape that can be divided into a plurality of block bodies, a component fixing recess for positioning and fixing a refrigerator component therein, and a plurality of air openings on the outer surface of the component support frame. The refrigeration according to claim 1, comprising a package frame having an air flow path that connects the ports in series, and a panel-shaped frame reinforcing member integrally provided on the entire bottom surface of the package frame. apparatus. 3. The auxiliary frame is composed of a plurality of split blocks made of a foam molded product having a rigidity higher than that of the foam material constituting the component supporting frame, and a part or the whole of the refrigerator part is made of the split blocks. The refrigerating apparatus according to claim 1 or 2, wherein the refrigerating apparatus is housed in a shaped block and fitted and fixed in a component fixing recess.