JP2011112290A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance heat insulating performance of a door and to reduce noise generated by movability of a partitioning plate disposed on the door in a refrigerator. <P>SOLUTION: The refrigerator includes a first door 121A and a second door 121B which open and close in right and left directions are provided at a front opening part 120 of a heat insulating box 101, and a partitioning body 150 interlocking with either of the doors and mounted rotatably by a hinge member 160. A heat insulating material is filled in the partitioning body 150, the heat insulting material is made by filled and foamed urethane resin 156, and a gap in the partitioning body 150 is reduced so as to enhance heat insulating performance and to reduce power consumption. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a refrigerator having a double door with a partition made of a highly heat insulating material.

  In recent years, refrigerators are required to be further energy-saving from the viewpoint of protecting the global environment, and to be improved in usability and storage.

  Conventionally, in this kind of double-opening refrigerator, in order to keep the inside of the cabinet airtight, a method of attaching a rotatable partition body to the double-opening door has been adopted (for example, see Patent Document 1).

  6 to 8 show the configuration of a conventional refrigerator described in Patent Document 1. FIG.

  As shown in FIGS. 6 to 8, the outer box 2 that forms the outer wall of the heat insulating box 1, the inner box 3 that forms the inner wall of the heat insulating box 1, and foaming between the outer box 2 and the inner box 3. It is made of a urethane heat insulating material 4 filled, and has a refrigerator compartment 5, a freezer compartment 6, a vegetable compartment 7, and a bottle compartment 8. The front opening 20 of the refrigerator compartment 5 and the freezer compartment 6 is a rotary door. A refrigerator compartment first door 21 </ b> A, a refrigerator compartment second door 21 </ b> B, a freezer compartment first door 22 </ b> A, a freezer compartment second door 22 </ b> B are provided, and the vegetable compartment 7 and the bottle compartment 8 are located in the lower part from the center of the heat insulation box 1. In consideration of storability and ease of use, a drawer type vegetable room drawer door 23 and a bottle room drawer door 24 that can be easily removed are provided. Moreover, the upper partition member 25 and the lower partition member 26 are arrange | positioned so that the front-surface opening part 20 of the heat insulation box 1 may be divided into upper, middle, and lower three steps.

  Further, on the outside of the vertical wall 37 inside the gasket 40 located on the non-pivot side of the back surface of the first refrigerator door 21A, a partition body 50 having a substantially rectangular cross section is formed by two upper and lower hinge members 60. It can be mounted freely. Furthermore, the partition body 50 is installed in a synthetic resin main body 51 having a substantially U-shaped cross section extending up and down with a length that extends substantially over the length of the opening edge of the refrigerator compartment 5, and an upper and lower end portion of the main body 51. A cap 52, a metal pad 53 that is attached to the main body 51 and the cap 52 and forms a space between the main body 21, and a foamed polystyrene that is housed in the space formed by the pad plate 53 and the main body 51. The heat insulating material 54 is used.

  The operation of the partition plate 50 accompanying the door opening / closing operation will be described. When the refrigerator compartment first door 21 </ b> A is closed from the state where the door is opened, the projection 61 comes into contact with the entrance portion of the groove portion 55 of the partition body 50. . As it further closes, the contact portion between the protrusion 61 and the groove 55 sequentially moves the surface on the near side of the curved groove 55 to the back side of the groove 55 along this surface, and finally is located at the innermost portion. To do. As a result, the contact plate 53 is substantially flush with the front opening 20, and the magnetized surface of the gasket 40 located on the non-pivot side of the doors 21A and 21B can be configured and stably maintained. The opening of 5 is sealed. Further, the shielding portion 65 provided at the opening edge serves as a positioning member for the front portion of the guide member 63 for retrofitting separately, so that the front and rear positions of the guide member 63 can be easily positioned, and the guide member 63 is attached. And replacement work is facilitated.

JP-A-6-42857

  However, in the conventional configuration described above, when the refrigerator external space and the interior of the refrigerator are shut off, the heat of the high-temperature outside air easily enters the interior of the refrigerator through the partition, and particularly from a metal pad that is in direct contact with the outside air. There was a problem that heat invaded into the main body, which is a synthetic resin, and into the cabinet.

  Moreover, since the low temperature cool air in a store | warehouse | chamber conducts heat in the opposite direction on the same path | route as the said heat transfer, and finally cools a contact plate, there existed a subject that dew condensation arises by the temperature difference with the outside.

  Further, when the door having the partition is opened, the rear surface of the partition is in contact with the vertical wall so as not to hinder food removal in the warehouse. At this time, a collision sound and vibration due to the contact are generated. As a result, since the partition body is relatively close to the height of the human ear, there has been a problem that noise and door vibration are very worrisome.

  This invention solves the said conventional subject, and it aims at providing the refrigerator which further improved the heat insulation performance of the partition body in the partition body installed in the door of the double door spread refrigerator.

  In order to solve the above-described conventional problems, the refrigerator of the present invention includes a first door and a second door that open and close a front opening of a heat insulating box to the left and right, and the first door and the second door. In a refrigerator comprising a seal member that is provided at the periphery of the front surface and seals the periphery of the front opening, and a partition that is linked to either the first door or the second door and is rotatably attached. The partition body is provided with a heat insulating material, and the heat insulating material is filled and foamed urethane resin.

  Thereby, since the heat conductivity of a partition body falls by using a foaming urethane resin with high heat insulation performance compared with the past, the heat insulation of partition body itself improves.

  The refrigerator of this invention can suppress the heat | fever penetration | invasion from the high temperature air outside a store | warehouse | chamber inside to a store | warehouse | chamber by comprising most of a partition body with a urethane foam resin, and can reduce the power consumption of a refrigerator.

Schematic front view of the refrigerator in Embodiment 1 of the present invention Schematic sectional view of the refrigerator in the first embodiment of the present invention. Sectional drawing of the principal part of the rotary door of the refrigerator in Embodiment 1 of this invention. The perspective view of the partition of the rotary door in Embodiment 1 of this invention FIG. 4 is a cross-sectional view of the main part A of FIG. 4 in Embodiment 1 of the present invention. Schematic front view of a conventional refrigerator Main part perspective view of a conventional refrigerator An exploded perspective view of a conventional refrigerator partition

1st invention is provided in the peripheral edge of the 1st door and the 2nd door which open and close the front opening part of a heat insulation box right and left, and the 1st door and the 2nd door, and the front opening part peripheral part In a refrigerator comprising a seal member that seals and a partition body that is rotatably attached to either the first door or the second door, the partition body includes a heat insulating material therein. Since the heat insulating material is formed of urethane resin filled and foamed, the thermal conductivity of the partition is lowered, and the amount of heat intrusion from the high-temperature air outside the compartment into the compartment is greatly reduced in the partition. it can. As a result, the internal temperature rise rate can be reduced, and the power consumption of the refrigerator due to a reduction in the operation rate can be reduced. On the contrary, the heat conduction of cold air decreases from the low temperature air in the refrigerator to the outer surface of the refrigerator. Thereby, by preventing the temperature drop of the partition itself, condensation on the outer surface can be prevented and the reliability of the refrigerator can be improved.

  In addition to the first invention, the second invention has hinge members that are rotatable at the upper and lower portions of the partition body, and air vent holes of urethane resin filled and foamed at both ends between the hinge members. The urethane resin injection hole is disposed between the air vent holes, and the urethane resin filled from the injection hole leaks out from the air vent hole to form a partition, and is filled with the urethane resin. It can be confirmed by leaking that the urethane resin does not flow and no void is formed in the internal space of the partition.

  Moreover, in addition to 1st or 2nd invention, before 3rd invention is filled with the said urethane resin, another heat insulating material is filled in the both sides of the urethane resin by which it is filled inside the partition body. Since the hinge member is inserted and attached to the region of the other heat insulating material, the heat insulating property of the movable range of the hinge member can be ensured.

  4th invention sticks to the 2nd invention the buffer material which blocks an injection hole and / or an air vent hole, and prevents the said partition body colliding with the said door by rotation of the partition body interlock | cooperated at the time of door opening. It is a thing.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the same components as those of the above-described embodiments will be denoted by the same reference numerals, and detailed description thereof will be omitted. The invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows a schematic front view of the refrigerator in Embodiment 1 of the present invention, FIG. 2 shows a schematic sectional view of the refrigerator in Embodiment 1 of the present invention, and FIG. FIG. 4 shows a cross-sectional view of the main part of the revolving door of the refrigerating compartment in Embodiment 1 of the present invention, and FIG. 4 shows a perspective view of the partition of the revolving door in Embodiment 1 of the present invention, FIG. 5 shows a cross-sectional view of the main part A of FIG. 4 in Embodiment 1 of the present invention. In addition, the same code | symbol is attached | subjected about the same structure as background art.

  In the figure, for example, a heat insulating box 101 configured to be insulated from the surroundings with a heat insulating material such as hard foamed urethane is divided into a plurality of heat insulating sections by an upper partition member 125 and lower partition members 126A and 126B. The room 105, the drawer type freezer room 106, the vegetable room 107, the switching room 109, and the ice making room 110 are configured. Each heat insulation section is provided with a heat insulation door, and the first door 121A, the second door 121B, the vegetable room drawer door 123, the freezer compartment drawer door 127, the ice making room drawer door 128, which are revolving doors of the refrigerator compartment, This is a switching room drawer door 129.

  The refrigerator compartment 105 is normally set at 1 to 5 ° C. with the temperature that does not freeze for refrigerated storage as the lower limit. The vegetable room 107 is often set to a temperature setting of 2 ° C. to 7 ° C., which is the same as or slightly higher than that of the refrigerator room 105. If the temperature is lowered, the freshness of leafy vegetables can be maintained for a long time.

  The freezer compartment 106 is normally set at −22 to −18 ° C. for frozen storage, but may be set at a low temperature of −30 to −25 ° C., for example, to improve the frozen storage state.

FIG. 4 is a perspective view of the partition 150 as viewed from the back side (side corresponding to the inside of the refrigerator compartment 105). As shown in FIG. 5, the partition 150 includes a metal plate 150a in which a seal member 140 (hereinafter referred to as a gasket) is closely attached by a magnet, and a resin-made partition side surface member 150b sandwiching the metal plate 150a.
And the metal plate 150a, the outer wall is formed by the resin partition member back member 150c, and the space portion 173 is formed inside.

  A hinge member 160 fixed to the second door 121 </ b> B and rotatably attached to the partition body side member 150 b is pivotally supported at both longitudinal ends of the partition body 150.

  As shown in FIG. 4, the partition member back member 150 c is provided with a plurality of injection holes 170 for filling the hard urethane resin 156. In addition, when the urethane resin is filled, the air vent holes 171 for exhausting the air in the internal space and the gas generated during foaming to the outside are arranged alternately with the injection holes 170, and as shown in FIG. Reference numeral 171 denotes a longitudinal direction of the partitioning member back member 150c, and is formed at both ends of the first partition part 173a filled with urethane resin.

  Further, in the portions of the injection hole 170 and the air vent hole 171, a recess 172 is formed in the partitioning member back member 150c as shown in FIG.

  The space portion 173 is formed with three sections in the longitudinal direction, and is formed by sandwiching a first partition section 173a filled with foamed urethane resin between the hinge members 160, and more specifically, air vents at both ends. The space part of the attachment region of the hinge member 160 formed between the holes 171 is configured as a second partition part 173b, and unlike a urethane resin filled and foamed such as a styrene material, there is a gap or the like in terms of heat insulation performance. Although it is inferior, the heat insulation performance of the hinge member 160 periphery is ensured by inserting the heat insulating material which can ensure the mobility of the hinge member 160.

  FIG. 5 is a cross-sectional view of FIG. 4A. In the recess 172, the injection hole 170 and the air vent hole 171 described in FIG. 4 are formed, and the purpose of closing these holes and the partition 150 when the partition body 150 is movable are shown. A cushioning material 174 is attached to reduce the generation of sound when the body back member 150c hits the door inner plate 135.

  Therefore, the thickness of the buffer material 174 is thicker than the depth of the recess 172, and the upper surface in the thickness direction of the buffer material 174 protrudes upward in the state shown in FIG. 5 from the reference surface of the partitioning member back member 150c. A buffer material 174 is attached.

  Next, the operation of the partition 150 will be described.

  When the first door 121A and the second door 121B are closed, the inside of the refrigerator and the outside of the refrigerator are sealed by the gasket 140, so that intrusion heat is reduced. Further, since the inside of the partition 150 is filled with urethane resin 156, the heat source 181 such as a heater that prevents the metal plate 150a from touching the outside air and preventing condensation on the surface of the metal plate 150a attached to the back surface of the metal plate 150a is energized. Even when the operation is performed, the inside of the partition 150 can be thermally conducted to reduce the heat intrusion into the refrigerator compartment 105.

  Further, when the partition 150 is manufactured, a heat insulating material such as a styrene material is inserted into the second partition part 173b in advance, and then liquid urethane resin is filled into the first partition part 173a from the two injection holes 170. The filled urethane resin flows in the first partition part 173a and the first partition part 173a is intentionally leaked out from the air vent holes 171 provided at both ends of the first partition part 173a. It can be visually confirmed that the interior has been filled to every corner, and the generation of voids can be prevented.

  Therefore, the heat insulation of the first partition part 173a which is the main part of the partition 150 can be enhanced, and the heat of the metal plate 150a and the heat source 181 is transmitted through the partition 150 and is reduced from entering the refrigerating chamber 105. Can do.

  Further, the partition 150 is rotated by the hinge member 160 and the spring member 161 by opening and closing the second door 121B. In particular, when the door is opened, the partition 150 rotates as indicated by the arrow in FIG. At this time, since the buffer material 174 is thickened so that the partition back member 150c hits the door inner plate 135 instead of hitting the door inner plate 135, the impact sound can be reduced, and the buffer material 174 is made of urethane foam. Thereafter, the injection hole 170 and the air vent hole 171 are closed to prevent moisture absorption inside. Moreover, since the recessed part 172 is formed for positioning, the sticking variation of the buffer material 174 can be reduced and reliability can be ensured.

  As described above, in the refrigerator according to the present invention, most of the partition body is made of urethane foam resin, thereby suppressing the heat intrusion from the high-temperature air outside the refrigerator into the refrigerator and reducing the power consumption of the refrigerator. Therefore, it can be applied to a commercial refrigerator that constitutes a partition.

101 heat insulation box 120 front opening 121A first door 121B second door 140 sealing member (gasket)
150 Partition 156 Urethane resin 160 Hinge member 170 Injection hole 171 Air vent hole 174 Buffer material

Claims (4)

A first door and a second door that open and close the front opening of the heat insulation box to the left and right; a seal member that is provided on a periphery of the first door and the second door and seals the periphery of the front opening; In the refrigerator comprising a partition that is linked to either the first door or the second door and is rotatably attached by a hinge member, the partition is provided with a heat insulating material inside, A refrigerator characterized in that the heat insulating material is made of urethane resin filled and foamed. It has hinge members that can rotate freely at the upper and lower parts of the partition body, and is provided with air vent holes for filling and foaming urethane resin at both ends between the hinge members, and the urethane resin injection holes are arranged between the air vent holes The refrigerator according to claim 1, wherein the urethane resin filled from the injection hole leaks to the outside from the air vent hole to form a partition. Inside the partition, another heat insulating material is inserted into both sides of the urethane resin to be filled and foamed before the urethane resin is filled, and a hinge member is attached to the region of the other heat insulating material. The refrigerator according to claim 1 or 2. The refrigerator according to claim 2, wherein a buffer material that blocks the injection hole and / or the air vent hole and prevents the partition body from colliding with the door due to rotation of the partition body that is interlocked when the door is opened is attached.