JP6849770B2 - refrigerator - Google Patents

Description

Embodiments of the present invention relate to refrigerators.

Conventionally, refrigerators have been opened and closed with a dew-proof heater that prevents dew condensation due to the temperature difference between the outside air and the inside of the refrigerator, a temperature compensation heater that prevents the vegetable compartment from being cooled more than necessary, and a duct through which cold air flows. Various heating elements such as an antifreeze heater for preventing freezing of the damper device are arranged. However, when the heating element provided in the refrigerator is a linear heater wire, the heater wire generates desired heat for the heating target. It is necessary to arrange them at intervals according to the amount (see, for example, Patent Document 1 below).

Japanese Unexamined Patent Publication No. 2004-335934

Therefore, it is an object of the present invention to provide a refrigerator in which heater wires can be easily arranged at intervals according to a desired calorific value.

The refrigerator of one embodiment includes a cabinet in which a storage chamber that opens to the front is formed, and a double door that is rotatably pivotally supported on both left and right sides of the front opening of the storage chamber to close the front opening. , The gasket provided on the peripheral edge of the door on the storage chamber side, and the gasket attached to the opposite side of one of the doors and rotating according to the opening / closing door operation to come into contact with the gasket. In a refrigerator provided with a rotating partition that closes between the doors, the rotating partition is attached to a partition plate that comes into contact with the gasket and an opening provided in the partition plate when the door is closed. A lid body that is fitted together with the partition body and constitutes a front side portion of the rotary partition body, a partition cover that covers the rear of the partition plate, and a heating body provided on the rear surface of the partition plate are provided, and the rotation The front side portion of the partition body includes a metal portion made of a metal material and a resin portion made of a resin material, the heating body is provided on the rear surface side of the metal portion, and the rear surface of the heating body is heated from the partition plate. The partition cover is covered with a filler made of a material having low conductivity, and the partition cover includes a front partition cover that supports the partition plate, a rear partition cover provided behind the front partition cover, the front partition cover, and the partition cover. The front partition cover is provided with a heat insulating material housed between the rear partition cover and the front partition cover is provided with a through hole on the surface facing the partition plate, and the heat insulating material has a convex portion fitted in the through hole. To prepare .

It is a perspective view of the refrigerator which concerns on one Embodiment of this invention. It is an exploded perspective view of a rotating partition body. It is an enlarged sectional view of the main part of a refrigerator door and a rotating partition body in a closed state. It is a top view of the heating body. FIG. 4 is a cross-sectional view taken along the line AA of FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

As illustrated in FIG. 1, the refrigerator 1 includes a cabinet 1a made of a heat insulating box body filled with a heat insulating material between an outer box and an inner box, and storage chambers 2 to 6 are provided inside the cabinet 1a.

Specifically, inside the cabinet 1a, a refrigerating room 2 that opens to the left and right by a double door is provided at the uppermost stage, and a vegetable room 3 is provided below the refrigerating room 2. Below the vegetable compartment 3, an ice making chamber 4 and a temperature switching chamber 5 are provided adjacent to each other on the left and right, and a freezing chamber 6 is provided further below.

The front opening of the refrigerator compartment 2 is closed by a double door 8 and a right door 9 that divide the opening in the width direction. The left door 8 and the right door 9 are rotatably and pivotally supported by hinges 7 provided on both the left and right sides of the refrigerator body. A gasket 10 having a magnet inside is attached to the rear peripheral edges of the left door 8 and the right door 9 over the entire peripheral edge.

A rotating partition 20 extending in the vertical direction is rotatably attached to the back surface of the left door 8 facing the pivot side by a hinge 34 at the right end of the left door 8. , It is configured to rotate in conjunction with the opening and closing of the left door 8 (see FIG. 3).

When the left door 8 is closed as shown in FIG. 3, the rotating partition body 20 is in a posture of projecting from the right end portion of the left door 8 to the right door 9 on the back surface of the left door 8 and the right door 9. When the left door 8 is opened as shown in FIG. 1 by contacting the provided gasket 10 to close the gap between the right door 9 and the left door 9, the left door is in a posture of protruding rearward. When the 8 is opened and closed, it is retracted to a position where it does not come into contact with the right door 9.

As shown in FIGS. 2 and 3, the rotary partition body 20 covers the partition plate 22 with which the gasket 10 comes into contact when the left door 8 and the right door 9 are closed, and the front surface of the rotary partition body 20 so as to cover the peripheral edge and the rear of the partition plate 22. A partition cover 28 having a U-shaped cross section, a heat insulating material 24 provided in the partition cover 28, a heating body 26 provided in the partition plate 22, and a cap member provided at the upper end of the partition cover 28. 30 and. The partition plate 22 closes the front opening of the partition cover 28 with the heat insulating material 24 and the heating body 26 housed inside the partition cover 28.

The heating body 26 is a surface-shaped heating source that prevents dew condensation from occurring on the partition plate 22 that comes into contact with the outside air in the rotating partition body 20 due to the temperature difference between the inside of the refrigerator and the outside air. It forms a substantially rectangular shape that is elongated in the vertical direction according to the shape. As shown in FIGS. 4 and 5, the heating body 26 includes a flexible linear heater wire 26a arranged along the peripheral edge of a substantially rectangular heating body 26 elongated in the vertical direction, and the heater. A resin film 26b that covers the wire 26a is provided.

The heater wire 26a is derived from a linear heater in which a heating wire 26a-2 spirally wound around a flexible core material 26a-1 such as glass fiber is coated with an insulator 26a-3 such as silicone rubber. Therefore, the lead wire 27 is connected to a pair of connection terminals 26a-4 provided at both ends of the heater wire 26a, and power is supplied from a control unit (not shown).

The amount of heat generated by the heater wire 26a can be made different by changing the winding pitch width of the heating wire 26a-2 in the longitudinal direction. Therefore, for example, the partition plate 22 is divided into three regions in the vertical direction, and the winding pitch width of the heating wire 26a-2 is set narrow so that the heating body 26 located in the lower region generates a larger amount of heat. The amount of heat generated can be increased by setting the winding pitch width of the heating wire 26a-2 to be narrow in the portion of the body 26 where the partition plate 22 is arranged at a position where dew condensation is likely to occur.

The resin film 26b is made of a flame-retardant resin material such as polyethylene terephthalate or polyvinyl chloride, and is preferably a transparent or translucent film having light transmission and arranged at predetermined intervals. The heater wire 26a is integrally covered from the outside to maintain the distance between the heater wires 26a.

In the resin film 26b, a plurality of through holes 26c are formed inside the heater wire 26a arranged at the peripheral edge of the heating body 26 at intervals in the longitudinal direction (vertical direction) of the heating body 26, and are adjacent to each other in the vertical direction. A connecting portion 26d for connecting the heater wires 26a arranged at intervals in the left-right direction is provided between the through holes 26c.

An insertion hole 26e penetrating the resin film 26b is bored in the connecting portion 26d, and the protrusion 28a provided on the partition cover 28 is fitted into the insertion hole 26e to fit the heating body at a predetermined position on the partition cover 28. 26 is placed.

In the present embodiment, one of the plurality of through holes 26c is connected to the notch 26f that opens at the peripheral edge of the resin film 26b. In the cutout portion 26f, the tips of the pair of connection terminals 26a-4 provided on the heater wire 26a project from the resin film 26b so as to face each other with the cutout portion 26f interposed therebetween, and the tips of the pair of connection terminals 26a-4 are opposed to each other. A pair of connection terminals 26a-4 are arranged adjacent to each other so that the heater wire 26a does not exist between the sides (lead wire 27 side). The lead wire 27 connected to the connection terminals 26a-4 is drawn out from the notch 26f to the outside of the heating body 26.

Further, the base end side (heater wire 26a side) of the pair of connection terminals 26a-4 extends to the side of the through hole 26c connected to the notch 26f and the through hole 26c adjacent in the longitudinal direction, and the connection terminal 26a-. The connecting portion 26d is located on the side of 4.

The partition plate 22 is composed of a substantially rectangular plate-shaped steel plate elongated in the vertical direction, and has a suction surface 22a forming a magnet suction surface of the gasket 10 and an angle portion 22b extending rearward from both side edge edges of the suction surface 22a. ing. On the back side (insulation material 24 side) of the suction surface 22a, preferably on the back side at the position where the gasket 10 comes into contact when the left door 8 and the right door 9 are closed, the heating body 26 is along the peripheral edge of the suction surface 22a. The heater wire 26a provided in the above is provided in a state where heat can be exchanged.

The suction surface 22a is provided with an opening 22c penetrating the suction surface 22a at least in a part of the portion where the heater wire 26a provided on the heating body 26 does not exist, and is formed from a steel plate constituting the partition plate 22 made of synthetic resin or the like. A lid 32 made of a material having a low thermal conductivity is provided so as to close the opening 22c.

Specifically, as shown in FIG. 3, the suction surface 22a is provided with a recess 22d that is recessed toward the heat insulating material 24 inside the heater wire 26a provided at the peripheral edge, and an opening is provided at the bottom of the recess 22d. 22c is provided. The lid 32 is fitted so as to fill the recess 22d provided in the suction surface 22a, and the locking claw 32a provided in the lid 32 is locked to the peripheral edge of the opening 22c, thereby engaging the partition plate 22. On the other hand, it is fixed.

The partition cover 28 is divided into two front and rear by a front partition cover 36 and a rear partition cover 38. Both the front partition cover 36 and the rear partition cover 38 are made of a material having a lower thermal conductivity than the steel plate constituting the partition plate 22 such as synthetic resin.

The front partition cover 36 is provided in front of the rear partition cover 38, and the angle portion 22b of the partition plate 22 is locked to support the partition plate 22. A heating body 26 and a filler 40 are provided between the suction surface 22a of the partition plate 22 and the front partition cover 36. The filler 40 is made of a material having a lower thermal conductivity than the steel plate constituting the partition plate 22, and the filler 40 is filled in the space sandwiched between the heating body 26 provided on the partition plate 22 and the front partition cover 36. There is. In the present embodiment, the filler 40 is in the form of a tape such as a soft tape, and is provided on the back side of the partition plate 22 so as to sandwich the heating body 26 with the partition plate 22 so that the heating body 26 is outside. Covering from.

Further, the front partition cover 36 is provided with a through hole 36b and a protrusion 28a protruding toward the partition plate 22 at the bottom portion 36a facing the partition plate 22.

The protrusion 28a provided on the bottom 36a of the front partition cover 36 is provided on the resin film 26b after an adhesive such as a double-sided adhesive tape is provided on the front surface side of the heating body 26 and the filler 40 is attached on the back surface side. The heating body 26 is positioned and arranged with respect to the front partition cover 36 by being inserted into the insertion hole 26e, and in this state, the angle portion 22b of the partition plate 22 is locked to the front partition cover 36 to lock the partition plate 22. The heating body 26 abuts on a predetermined position on the back surface of the partition plate 22 and is adhesively fixed so that the heater wire 26a is located on the back surface side of the position where the gasket 10 abuts.

The rear partition cover 38 is provided behind the front partition cover 36, and forms a heat insulating space for accommodating the heat insulating material 24 with the front partition cover 36. The heat insulating material 24 housed in the heat insulating space is provided with a convex portion 24a that fits into the through hole 36b provided in the front partition cover 36, whereby the heat insulating material 24 is arranged in the through hole 36b. There is.

A seal member 42 extending in the vertical direction is provided on the outside of the side wall of the rear partition cover 38. In this example, a fin-shaped sealing member 42 is provided on the left wall of the rear partition cover 38 provided with the hinge 34, and when the left door 8 and the right door 9 are closed, the sealing member 42 is rearward from the back surface of the left door 8. It abuts on the convex portion 8a protruding toward. As a result, the sealing member 42 seals the gap between the rotating partition body 20 and the door 8 behind the gasket 10 provided on the back surface of the left door 8.

An elastic sheet 46 formed of a soft sponge is attached to the back surface of the rear partition cover 38, and is provided on the left door 8 when the rotating partition 20 rotates when the left door 8 is opened. It is possible to soften the impact on the convex portion 8a and alleviate the cooling of the rear partition cover 38 by the cold air in the refrigerating chamber 2 to suppress the cooling of the rotating partition body 20.

A guide groove 30a that engages with a guide pin 31 that projects downward from the ceiling surface of the refrigerating chamber 2 is formed on the upper end surface of the cap member 30 arranged at the upper end of the rotary partition body 20, and is left. As the guide pin 31 slides on the guide groove 30a as the door 8 opens and closes, the rotating partition body 20 rotates about the hinge 34.

In the refrigerator 1 of the present embodiment as described above, the heating body 26 provided on the left door 8 via the rotating partition body 20 covers the heater wires 26a arranged at intervals with the resin film 26b. Since the heater wires are formed of the shape heater and the intervals between the heater wires 26a are held by the resin film 26b, the heater wires can be easily arranged at intervals according to a desired calorific value.

In the present embodiment, since the resin film 26b constituting the heating body 26 is made of a flame-retardant resin material, the resin film 26b does not burn when the heating body 26 generates heat, and the safety is excellent.

Further, in the present embodiment, the heating body 26 that heats the partition plate 22 of the rotating partition body 20 is on the back side of the position where the heater wire 26a comes into contact with the gasket 10 when the left and right doors 8 and 9 are closed on the partition plate 22. Since it is provided in, the position of the gasket 10 provided on the doors 8 and 9 where it is difficult to secure the heat insulating performance and dew condensation is likely to occur can be heated intensively, which is necessary to prevent dew condensation on the partition plate 22. The calorific value of the heating body 26 can be suppressed.

Further, in the present embodiment, the partition plate 22 of the rotating partition body 20 is provided with an opening 22c at least in a part of the portion where the heater wire 26a provided in the heating body 26 does not exist, so that the heating body 26 is provided. The area of the partition plate 22 to be heated can be reduced, and the amount of heat generated by the heating body 26 required to prevent dew condensation on the partition plate 22 can be suppressed. Therefore, it is possible to prevent dew condensation that occurs on the rotating partition body 20 while suppressing the power consumption, and it is also possible to suppress the amount of heat of the heating body that leaks into the storage chamber.

Moreover, in the present embodiment, since the opening 22c provided in the partition plate 22 is provided with the lid 32 made of a material having a lower thermal conductivity than the steel plate constituting the partition plate 22, the heat of the heating body 26 is generated. It is possible to improve the heat insulating performance of the rotating partition body 20 by making it difficult for the air outside the refrigerator to enter the inside of the rotating partition body 20 through the opening 22c while suppressing the decrease in the amount of heat of the partition plate 22 by conducting heat to the lid body 32. it can.

Further, in the present embodiment, since the heating body 26 for heating the partition plate 22 is provided with a plurality of through holes 26c penetrating the resin film 26b, the heat released from the heater wire 26a is transferred to the partition plate 22. It is possible to suppress deterioration of heating efficiency due to transmission to the resin film 26b, which is difficult to contribute to heating, and since a connecting portion 26d for connecting the heater wire 26a is provided between adjacent through holes 26c, the through portion 26d is provided. It is possible to suppress a decrease in the rigidity of the heating body 26 due to the holes 26c.

Further, in the present embodiment, since the linear heater constituting the heating body 26 can adjust the calorific value by changing the winding pitch width of the heating wire 26a-2 in the longitudinal direction, the heating body 26 is partially used. The calorific value can be partially adjusted without changing the density at which the heating body 26 is arranged, such as meandering. Therefore, even when the place where the heating body 26 can be arranged is limited by providing the opening 22c in the partition plate 22, the calorific value of the heating body 26 is large according to the position of the partition plate 22. It becomes easy to adjust to.

Further, in the present embodiment, since the resin film 26b constituting the heating body 26 has light transmittance, the position of the heater wire 26a can be visually recognized, and the heater wire 26a can be easily arranged at a desired position.

Further, in the present embodiment, since the pair of connection terminals 26a-4 provided at both ends of the heater wire 26a of the heating body 26 are arranged adjacent to each other, the connection work with the lead wire 27 is easy.

Further, in the present embodiment, the partition cover 28 that covers the rear of the partition plate 22 is front and rear 2 by the front partition cover 36 that supports the partition plate 22 and the rear partition cover 38 that is provided behind the front partition cover 36. Since it is divided, the thermal resistance between the front partition cover 36 and the rear partition cover 38 becomes large, and it is possible to prevent the heat of the heating body 26 from leaking into the storage chamber through the partition cover 28.

Further, since the front partition cover 36 is provided with a through hole 36b in the bottom portion 36a facing the partition plate 22, the area of contact with the rear partition cover 38 via the heat insulating material 24 is reduced, and the front partition cover 36 is provided. The thermal resistance between the and the post-partition cover 38 can be made larger, and the heat of the heating body 26 can be suppressed from leaking into the storage chamber. At that time, since the through hole 36b provided in the front partition cover 36 is provided with the convex portion 24a of the heat insulating material 24, the air inside the rotating partition body 20 passes through the through hole 36b and the front partition cover 36. It is possible to prevent the heat from moving back and forth between the spaces before and after the heating body 26, and it is possible to prevent the heat of the heating body 26 from leaking into the storage chamber through the air inside the rotating partition body 20.

Further, when an air layer exists between the partition plate 22 and the front partition cover 36, the heat of the heating body 26 causes the air in the air layer to convect and the heat of the heating body 26 diffuses into the rotating partition body 20. However, in the present embodiment, since the filler 40 made of a material having a lower thermal conductivity than the steel plate constituting the partition plate 22 is provided between the heating body 26 and the front partition cover 36, the partition plate 22 and the front partition plate 22 and the front partition plate 22 are provided. The air layer formed between the partition cover 36 and the partition cover 36 can be reduced, and the decrease in heating efficiency to the partition plate 22 due to the heat of the heating body 26 diffusing into the rotating partition body 20 can be suppressed. Moreover, in the present embodiment, since the filler 40 is provided on the back surface side of the partition plate 22 so as to sandwich the heating body 26 with the partition plate 22 and covers the heating body 26 from the outside, the filler 40 The heat from the heating body 26 can be concentrated on the partition plate 22 having a smaller thermal resistance than the above, and the partition plate 22 can be heated efficiently.

In the above-described embodiment, the case where the heating body 26 is provided on the rotating partition body 20 attached to the door 8 has been described, but the present invention is not limited to this, and for example, dew condensation on the refrigerator body 11 is prevented. The heating body 26 is arranged in the heat insulating material of the cabinet 1a, and the heating body 26 is arranged in the heat insulating partition forming the bottom surface of the vegetable room to prevent the vegetable room from being cooled more than necessary. It can be installed.

Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... Refrigerator, 1a ... Cabinet, 8 ... Left door, 9 ... Right door, 10 ... Gasket, 20 ... Rotating partition, 22 ... Partition plate, 22a ... Adsorption surface, 22b ... Angle part, 22c ... Opening, 22d ... concave, 24 ... heat insulating material, 24a ... convex, 26 ... heating body, 26a ... heater wire, 26a-1 ... core material, 26a-2 ... heating wire, 26a-3 ... insulator, 26a-4 ... connection terminal , 26b ... resin film, 26c ... through hole, 26d ... connecting part, 26e ... insertion hole, 26f ... notch, 27 ... lead wire, 28 ... partition cover, 28a ... protrusion, 30 ... cap member, 30a ... guide groove, 31 ... Guide pin, 32 ... Lid, 32a ... Locking claw, 34 ... Hinge, 36 ... Front partition cover, 36a ... Bottom, 36b ... Through hole, 38 ... Rear partition cover, 40 ... Filler

Claims (2)

A cabinet in which a storage chamber that opens to the front is formed, a double door that is rotatably pivotally supported on both left and right sides of the front opening of the storage chamber to close the front opening, and a storage chamber side of the door. A gasket provided on the peripheral edge and one of the doors, which is attached to the opposite side of the door and rotates according to the opening / closing door operation to abut the gasket and close the space between the doors. In a refrigerator equipped with a moving partition
The rotating partition body is fitted into a partition plate that comes into contact with the gasket and an opening provided in the partition plate when the door is closed, and constitutes a front side portion of the rotating partition body together with the partition body. A lid body, a partition cover covering the rear of the partition plate, and a heating body provided on the rear surface of the partition plate are provided.
The front side portion of the rotating partition body includes a metal portion made of a metal material and a resin portion made of a resin material.
The heating body is provided on the rear surface side of the metal portion, and the rear surface of the heating body is covered with a filler made of a material having a lower thermal conductivity than the partition plate.
The partition cover includes a front partition cover that supports the partition plate, a rear partition cover provided behind the front partition cover, and a heat insulating material housed between the front partition cover and the rear partition cover. With
The front partition cover is provided with a through hole on the surface facing the partition plate.
The heat insulating material is a refrigerator having a convex portion that fits into the through hole. The refrigerator according to claim 1, wherein the filler is provided between the heating body and the front partition cover.

Images