JPH0688669A - Refrigerator - Google Patents

Abstract

PURPOSE:To provide a refrigerator capable of easily separating a condenser pipeline, a dew condensation-preventing heater and the like, which are mounted on the outer case of the refrigerator to prevent dew condensation, from the front face side of the outer case, facilitating the handling of the same at the time of disposal of the refrigerator, and having excellent recycling characteristics. CONSTITUTION:A space between an outer case 21 and an inner case 22 is filled with an expanded heat-insulating material 23 to form a heat-insulating casing to constitute a storage chamber. In a refrigerator having a machine chamber on the underside of the storage chamber, through ducts 29c whose one side is opened to the machine chamber, and the other side, to a ceiling part, are formed on the right and left rear face sides of a peripheral part 21a of an opening on the front face of the outer case 21, and a partition board having a dew condensation-preventing heater mounted thereon is provided on the front face of the partition wall dividing the storage chamber. Further, the front edge of the outer case is connected with the front end of the inner case by using a decorative laminate 29 made of resin, and a door gasket receiving face 29d, an outer case engaging part 29a, an inner case engaging part 29b and the through ducts 29c are formed unitarily with the decorative laminate 29. A magnetic adhesive tape 30 is stuck on the door gasket receiving face 29d of the decorative laminate 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and prevents dew condensation on the front opening peripheral edge portion and door packing portion.
The present invention relates to a refrigerator having a structure in which the components of the refrigerator are easily discarded (ease of disposal) and recyclable.

[0002]

2. Description of the Related Art Conventionally, for example, a refrigerator having a front opening peripheral edge portion and a door packing portion is prevented from being exposed to dew, for example,
The technique described in JP-A-63-65272 is known. 8 is a perspective view of the conventional refrigerator described in the above publication, FIG. 9 is a cross-sectional view of a main part of a front flange portion of the inner box of the refrigerator of FIG. 8 before assembly, and FIG. is there. Figure 8
The refrigerator main body 1 shown in FIG. 2 includes an outer box 2, an inner box 3 formed of a synthetic resin, and a foamed heat insulating agent 4 filled between the outer box 2 and the inner box 3. Reference numeral 7 indicates a condenser pipe.

Reference numeral 5 shown in FIG. 9 is a front flange of the inner box 3, and a recess 8 is provided at an end of the front flange 5. Reference numeral 9 denotes a heat-expandable sealing heat insulating material, the periphery of which is covered with a thin heat-conductive member 10. Reference numeral 11 shown in FIG. 10 denotes a concave groove provided in the front flange portion 6 of the outer box 2, and the width dimension l ₂ of the concave groove 11 is formed to be substantially equal to the dimension l ₁ of the concave portion 8 of the front flange 5. Then, the condenser pipe 7, the heat-expanding material 9 for thermal expansion sealing, and the front flange 5 of the inner box 3 are sequentially inserted from the bottom surface portion 12 of the groove 11.

That is, first, the condenser pipe 7 is inserted into the groove 11.
Then, the front flange 5 of the inner box 3 to which the heat-expandable heat insulating material 9 is fixed is inserted. After that, the temperature of the heat-expandable sealing heat insulating material 9 is increased by heating with a heater or the like to expand the heat-expandable sealing heat insulating material 9, whereby the condenser pipe 7 is thermally expanded through the heat conductive member 10. Is fixed to the bottom surface portion 12 of the concave groove 11 by the heat insulating material 9 for heat resistant seal, and the front flange of the inner box 3 and the concave portion 8 of the front flange 5
Is pressed and fixed to the side surface of the groove 11. After that, the foamed heat insulating material 4 is filled and foamed to form the refrigerator body 1.

[0005]

Recycling of waste, such as the enactment of the Recycling Law that promotes effective use of resources and reduction of waste, while the waste disposal capacity is approaching the limit, especially in metropolitan areas. The need to consider gender is increasing,
Even household appliances such as refrigerators are required to use structures and materials that facilitate recycling.

In the prior art of the refrigerator, the condenser pipe for preventing dew condensation of the outer box and the door packing is buried in the heat insulating box body, and the condenser pipe is removed from the heat insulating box body for recycling. Difficult to separate,
In other words, there is a problem that the structure does not take recycling into consideration.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and is intended to prevent dew on the opening edge of the refrigerator and the door gasket, and is attached to a refrigerator outer box to prevent dew. It is possible to easily separate the condenser piping, the dew-prevention heater, etc. from the outer box from the front side of the outer box, to facilitate the handling at the time of discarding the refrigerator, and to provide a refrigerator excellent in recyclability. It is intended.

[0008]

In order to achieve the above object, the structure of the first invention relating to the refrigerator of the present invention is an outer box integrally formed with a peripheral edge portion of the front opening, and the outer box is internally provided. In a refrigerator having an inner box and a foam insulation material filled and foamed between the inner and outer boxes to form a heat-insulating box, and a machine room at the bottom of the room, a front surface of the outer box On the left and right back sides of the opening peripheral part, one side forms a through duct that opens to the machine room and the other side opens to the ceiling part, and a partition plate is provided on the front surface of the partition wall that partitions the storage chamber. An attachment prevention heater is attached.

More specifically, the outer box front edge and the inner box front end are connected by a resin decorative plate, and the decorative plate is connected to the door gasket receiving surface, the outer box front edge engaging portion, the inner box front end engaging portion, Also, the through duct is integrally formed, and a magnetizing tape is attached to the door gasket receiving surface of the decorative plate. In addition, a partition plate attached to the front of the partition wall that divides the storage chamber into upper and lower parts is formed with a concave groove that opens to the outer box opening side, and after attaching a dew prevention heater to this concave groove, the decorative plate is fixed. It is a thing.

In order to achieve the above-mentioned object, the structure of the second invention relating to the refrigerator of the present invention is an outer box integrally formed with a front opening peripheral edge portion, and an inner box inside the outer box. In a refrigerator having a machine room in the lower part of the storage room, a heat insulation box body is formed by the foamed insulation material filled and foamed between the inner and outer boxes, and a refrigerator is provided with a machine room under the storage room. A concave groove that opens on the box opening side is formed, a condenser pipe that forms a part of the condenser is inserted into this concave groove, and a decorative plate is fixed on this insertion part to close the concave groove. is there.

More specifically, a partition plate mounted on the front surface of a partition wall that divides the storage chamber into upper and lower parts is formed with a concave groove that opens to the outer box opening side, and the concave groove forms a part of a condenser. A container pipe is inserted, and a decorative plate is fixed to the mounting portion to close the concave groove.

Further, in order to achieve the above-mentioned object, the structure of the third invention relating to the refrigerator of the present invention is such that the circumference of the front opening of the refrigerator main body is on the outer peripheral back surface of the door body closing the storage chamber of the refrigerator main body. The first gasket is provided at the abutting position, and the inner periphery of the first gasket is provided with a closing portion that abuts the front opening edge of the outer box and an engaging portion that engages a concave groove provided in the door inner plate. It is provided with a second gasket integrally formed.

[0013]

The function of the above technical means is as follows. According to the first invention, the temperature of the decorative plate 29 rises due to the warm air in the machine room passing through the duct portion formed on the decorative plate, and the decorative plate 29 is made of synthetic resin, so that the heat transfer from the inside is small. Therefore, it is possible to prevent dew condensation. Further, the partition plate mounted on the front surface of the partition wall increases the surface temperature due to the heat generated by the dew-prevention heater, so that the dew condensation can be prevented. When the refrigerator is discarded, since the condenser piping is not used as the dew condensation preventing means, it is not necessary to separate the condenser, and the recyclability is excellent.

According to the second aspect of the present invention, the condenser pipe arranged in the outer box for preventing the dew condensation of the outer box and the door packing is separated from the foamed heat insulating material filled in the inner and outer boxes into the outer box. It is installed. Therefore, when the refrigerator is discarded, the condenser can be easily removed by simply removing the decorative plate, and the recyclability is excellent.

According to the third aspect of the invention, since the door gasket is doubled, the space between the inner box which is the storage chamber and the door can be suppressed to be long and thin, and an adiabatic air layer without cold air convection can be formed. Therefore, it is possible to reduce the decrease in the surface temperature of the outer plate front edge portion located between the first and second gaskets. In other words, the surface temperature of the outer box front opening edge portion can be made sufficiently higher than the dew point temperature. There is no fear.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Each embodiment of the present invention will be described below with reference to FIGS. [Embodiment 1] First, an embodiment of the first invention will be described with reference to FIGS. 1 is a perspective view of a refrigerator according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line BB of FIG.

In each of FIGS. 1 to 3, 20 is
A refrigerator main body configured by filling a foam insulation material 23 between an outer box 21 and an inner box 22. The outer box 21 integrally includes both side surfaces, a top surface, a rear edge portion, and a front opening edge portion 21a of the refrigerator main body 20. Is formed. 24 is a freezing room, 25 is a refrigerating room, 26 is a vegetable room, and each storage space is divided by partition walls 27 and 28. Reference numeral 29 designates the outer box front opening edge 21a and the inner box 2
2 A decorative plate that connects the two front faces, and is made of synthetic resin. The decorative plate 29 includes an outer box engaging portion 29a, an inner box engaging portion 29b, a substantially U-shaped duct 29c, and a door gasket receiving surface 2
9d, and has a groove 29e in the gasket facing portion of the door gasket receiving surface. Reference numeral 30 is a magnetizing tape for magnetizing the gasket, which is attached to the concave groove 29e of the decorative plate gasket receiving surface. The decorative plate 29 is attached from the upper end to the lower end of the outer box.

Reference numeral 21b is a notch hole provided at a position facing the upper end of the duct 29c formed integrally with the decorative plate 29. Reference numeral 27 denotes a partition wall that divides the freezing compartment 24 and the refrigerating compartment 25, and a partition plate 31 is attached to the front surface. The duct 29c formed on the decorative plate 29 has a refrigerator body 2 on one side.
In the machine room formed in the lower part of 0, the other end is open to the cutout hole 21b in the ceiling of the outer box 21. Reference numeral 31a is a groove for embedding the dew-prevention heater 32 in the partition plate 31 from the opening edge side of the outer box front surface. After the dew-prevention heater 32 is inserted into the groove 31a, the mounting portion is closed. The decorative plate 33 is fixed to the partition plate 31.

With this structure, the warm air heated by the heat exchange of the compressor and the condenser (not shown) in the refrigerator bottom machine room passes through the duct 29c and has a notch formed in the ceiling of the outer box 21. It is discharged to the ceiling through the hole 21b. As a means for forcibly blowing the warm air in the machine room to the duct 29c, by installing a fan in the machine room, a certain amount of air can be sent to the duct.

The surface temperature of the door gasket receiving portions on the left and right front sides of the outer case according to this configuration is such that the temperature rise of the decorative plate 29 due to the warm air in the machine room passing through the duct 29c formed on the decorative plate 29, and the decorative plate 29 is Since it is a synthetic resin and the heat transfer from the inside is small, it is possible to reduce the amount of temperature decrease with respect to the outside air temperature and ensure the dew point temperature or higher to prevent dew condensation.

The partition plate 31 mounted on the front surface of the partition wall
The surface temperature rises due to the heat generated by the dew-condensation heater 32, so that dew condensation can be prevented. Further, by forming the partition plate 31 from a synthetic resin, the thermal conductivity can be made smaller than that of a steel plate or the like, the heat transfer from the inside of the refrigerator to the door gasket abutting part can be made small, and the surface temperature of the partition plate 31 can be reduced. It can be prevented. Further, when the partition plate 31 is made of a synthetic resin, a magnetizing tape (plate) 30 is attached to the door gasket contact portion of the partition plate 31 so that the door gasket adheres to the partition plate 31. There is an advantage that can improve.

When the refrigerator is discarded, since the condenser piping is not used as the dew condensation preventing means, it is not necessary to separate the condenser and the recyclability is excellent.

[Embodiment 2] Next, an embodiment of the second invention will be described with reference to FIGS. FIG. 4 is a perspective view of a refrigerator according to another embodiment of the present invention, and FIG. 5 is a C of FIG.
-C arrow sectional view, FIG. 6 is a DD sectional view of FIG. In each of FIGS. 4 to 6, 40 is an outer box 4.
1 is a refrigerator body configured by filling the foam insulation material 23 between the inner box 42, and the outer box 41 integrally forms both side surfaces, the top surface, the back edge portion, and the front opening edge portion 41a of the refrigerator body 40. is doing. 24 is a freezing room, 25 is a refrigerating room, and 26 is a vegetable room, and each storage space is divided by partition walls 43 and 44.

On the left and right sides and the upper surface of the outer box front opening edge portion 41a, concave grooves 41b opened to the front side are continuously formed. Further, on the back side of the outer box front opening edge 41a,
Engaging portion 41 for engaging the outer peripheral flange portion 42a of the inner box 42
c is integrally formed. Reference numeral 7 denotes a condenser pipe forming a part of the cooling device, which is bent so that it can be inserted into the recessed grooves 41b provided on the left and right sides of the opening edge portion on the front face of the outer box. The condenser pipe 7 is inserted into the concave grooves 41b formed on the left and right sides and the upper surface of the outer box front opening edge portion 41a, and then the concave groove 41b is closed and the decorative plate 45 serving as the door gasket receiving portion is stopped. Be worn.

Reference numeral 46 denotes a partition plate mounted on the front surfaces of the partition walls 43 and 44, and like the groove 41b provided in the opening edge portion 41a of the outer box front surface, the outer box opening side into which the condenser pipe 7 is inserted. It has a concave groove 46a that is open to the outside. Reference numeral 47 is a decorative plate that inserts the condenser pipe 7 into the groove 46a of the partition plate 46 and closes the groove 46a, and is fixed to the partition plate 46. The concave grooves 41b formed on the left and right sides and the upper surface of the outer box front opening edge portion 41a and the concave groove 46a formed on the partition plate 46 are connected so as to match the bent shape of the condenser pipe 7.

According to this configuration, the outer box 41 and the partition plate 4
The condenser pipe 7 arranged for the purpose of preventing dew condensation of 6 is
Since it is attached to the outer box front opening side, and is attached to the outer box 41 separately from the foamed heat insulating material 23 filled between the inner and outer boxes, when the refrigerator is discarded, The condenser pipe 7 can be easily removed only by removing the decorative plates 45 and 47, and a refrigerator having excellent recyclability can be provided.

[Embodiment 3] Next, an embodiment of the third invention will be described with reference to FIG. FIG. 7 is a cross-sectional view of a main part when the door of the refrigerator according to another embodiment of the present invention is closed. In the figure, the same reference numerals as those in FIG. 5 indicate the same parts as those in the previous embodiment. Reference numeral 52 is a door rotatably attached to the outer box 41, and has a sash 49 integrally formed with a gasket locking groove on the back surface of the outer peripheral edge.

Reference numeral 48 is a closing member 48a containing a magnet,
A first gasket composed of a mounting member 48b, a cushioning member 48c, a bellows member 48d, and the like. The first gasket 48 is engaged with the sash 49. Reference numeral 50 is an inner plate of the door, and a groove 50 is formed in the inner periphery of the first gasket 48.
a is formed. Reference numeral 51 denotes a recessed groove 50 of the door inner plate 50.
The closing portion 5 that engages with a and abuts against the outer casing front opening edge 41a
The second gasket 51 has a closing portion 51a and an engaging portion 51a as described above.
It has b integrally.

According to this structure, since the door gasket is doubled, the space between the inner box, which is the storage chamber, and the door is elongated, and a heat-insulating air layer free from cold air convection can be formed. That is, the cold air convection in the refrigerator is blocked by the second gasket portion 51, the cold air convection is small between the first gasket 48 and the second gasket 51, and the cold air convection is located between the first gasket 48 and the second gasket 51. The decrease in the surface temperature of the outer plate front edge portion 41a can be reduced, in other words, the outer box front opening edge 41a.
The surface temperature of the part can be set sufficiently higher than the dew point temperature, and there is no risk of dew condensation.

According to each of the above-mentioned embodiments, when the refrigerator is replaced by a new one, when the refrigerator is discarded due to an irreparable failure, the dew-prevention heater used as the dew-prevention means and the condenser pipe are provided from the front side of the refrigerator, and Since it is attached separately from the foamed heat insulating material, it can be easily removed from the refrigerator box body, and it is possible to provide a refrigerator having a dew condensation preventing means excellent in recyclability.

[0031]

As described above in detail, according to the present invention, it is possible to prevent the front edge of the refrigerator and the door gasket from being exposed to dew, and to prevent dew from being attached to the refrigerator outer casing. It is possible to easily separate the piping, the dew-prevention heater, etc. from the outer box, from the front side of the outer box, facilitate handling at the time of discarding the refrigerator, and provide a refrigerator excellent in recyclability.

[Brief description of drawings]

FIG. 1 is a perspective view of a refrigerator according to an exemplary embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

3 is a cross-sectional view taken along the line BB of FIG.

FIG. 4 is a perspective view of a refrigerator according to another embodiment of the present invention.

5 is a cross-sectional view taken along the line CC of FIG.

6 is a cross-sectional view taken along the line DD of FIG.

FIG. 7 is a cross-sectional view of essential parts when the door of the refrigerator according to another embodiment of the present invention is closed.

FIG. 8 is a perspective view of a conventional refrigerator.

9 is a cross-sectional view of a main part of a front flange portion of the inner box before the refrigerator of FIG. 8 is assembled.

10 is a cross-sectional view of an essential part of the refrigerator of FIG. 8 after assembly.

[Explanation of symbols]

 7 Condenser pipe 20,40 Refrigerator main body 21,41 Outer box 21a, 41a Outer box front opening edge 22,42 Inner box 23 Foam insulation 27,28,43,44 Partition wall 29 Decorative plate 29a Outer box engaging part 29b Inner box engaging part 29c Duct 29d Door gasket receiving surface 29e Recessed groove 30 Magnetizing tape 31,46 Partition plate 31a, 41b, 46a Recessed groove 32 Dew prevention heater 33,45,47 Decorative plate 48 First gasket 49 Sash 50 Internal plate 50a Recessed groove 51 Second gasket 51a Closing portion 51b Engaging portion

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Makoto Ashida 800 Tomita, Ohira-machi, Shimotsuga-gun, Tochigi Hitachi Tochigi Plant (72) Inventor Katsuri Shinohara 800-Tomita, Ohira-machi, Shimotsuga-gun, Tochigi Hitachi, Ltd. Tochigi Plant (72) Inventor Takehiro Kaneko 709, Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Prefecture 2 Hitachi Hitachi Tochigi Electronics Co., Ltd. (72) Inventor, Mitsuo Sato 800, Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Prefecture Hitachi Tochigi Factory

Claims (7)

[Claims] 1. A heat-insulating box body is formed by an outer box integrally forming a front opening peripheral edge portion, an inner box inside the outer box, and a foamed heat insulating material filled and foamed between the inner and outer boxes. In a refrigerator having no storage room and a machine room at the bottom of the storage room, in the left and right back sides of the front opening peripheral edge of the outer box, one side is formed with the machine room, and the other side is formed with a through duct that opens to the ceiling part. In addition, a partition plate is provided on the front surface of the partition wall that partitions the storage chamber,
A refrigerator characterized in that a dew-prevention heater is attached to this partition plate. 2. The outer box front edge and the inner box front end are connected by a resin decorative plate, and the decorative plate is connected to the door gasket receiving surface, the outer box front edge engaging portion, the inner box front end engaging portion, and the through-hole. 2. The refrigerator according to claim 1, wherein the duct is integrally formed and a magnetizing tape is attached to the door gasket receiving surface of the decorative plate. 3. A partition groove mounted on the front surface of a partition wall that divides the storage chamber into upper and lower parts is formed with a concave groove opening to the outer box opening side,
The refrigerator according to claim 1 or 2, wherein a decorative plate is attached to the groove after attaching a dew-prevention heater. 4. A heat insulating box body is formed by an outer box integrally forming a front opening peripheral edge portion, an inner box inside the outer box, and a foamed heat insulating material filled and foamed between the inner and outer boxes. In a refrigerator having a storage room and a machine room below the storage room, a concave groove that opens to the outer case opening side is formed at the peripheral edge of the front opening of the outer case, and a part of the condenser is formed in this concave groove. The refrigerator is characterized in that the condenser pipe is inserted, and a decorative plate is fixed on the insertion portion to close the concave groove. 5. A partition plate mounted on the front surface of a partition wall that divides a storage chamber into upper and lower parts is formed with a concave groove opening to the outer box opening side,
5. The refrigerator according to claim 4, wherein a condenser pipe forming a part of the condenser is inserted into the groove, and a decorative plate is fixed on the mounting portion to close the groove. 6. The refrigerator according to claim 1, wherein the partition plate to be mounted on the front surface of the partition wall is made of synthetic resin, and a magnetizing tape is attached to the facing portion of the door gasket. 7. A first gasket is provided at a position on the outer peripheral back surface of the door body closing the storage chamber of the refrigerator main body, the position being in contact with the front opening periphery of the refrigerator main body, and the inner periphery of the first gasket is 7. A second gasket, comprising: a second gasket integrally formed with a closing portion that comes into contact with an opening edge of the front face of the outer box and an engaging portion that engages with a concave groove provided in the inner plate of the door. Refrigerator.