JPH04126987A - Refrigerator - Google Patents

Abstract

PURPOSE:To eliminate influence of droplets to a lead switch upon opening/ closing of a door by burying a magnet in the, bottom of an article container disposed in a refrigerant at the time of blocking the door, and burying the switch in the bottom of the container and a part opposed to the magnet in a partition CONSTITUTION:A door pocket 41 formed in a circular arc shape along the edge of a shelf 21 is arranged on the surface opposed to the shelf 21 on the inner surface of a door 13 of a refrigerating chamber 7. The upper surface front part of a partition wall 6 is opposed to a bottom 42 in the chamber 7 at the time of blocking the door 13. The right and left parts of the bottom 42 are formed to protrude from the center to the interior of a refrigerator, and magnets 43 for controlling ON/OFF of a lead switch 46 are buried at the right and left parts together with holders 44 made of a heat insulator. The switch 46 in which its contact is turned ON/OFF by the magnetic force of the magnet 43 is buried at the front right side part of the wall 6, and the switch 46 is buried to be held in a holding heat insulator 47. Accordingly, the switch is not affected by the influence of dew-condensation upon opening/closing of the door.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] Industrial Field of Application The present invention relates to a refrigerator equipped with a door switch that is turned on and off based on the opening/closing operation of the door of a low-temperature refrigerator or the like.

Conventional technology Japanese Utility Model Publication No. 57-39753 provides a door switch that controls the operation of electric equipment such as interior lights and blowers installed in a low-temperature refrigerator based on the opening and closing operations of the door body of the low-temperature refrigerator. and Japanese Utility Model Publication No. 61-136297.

The above publication (■) discloses a technology that employs a seesaw switch that operates mechanically as a door switch, and the publication (■) above discloses a technology that employs a reed switch that operates magnetically as a door switch. is disclosed.

Problems to be Solved by the Invention The technology shown in the above publication (■) employs a seesaw switch that operates mechanically as a door switch to open and close electrical contacts. In addition to installing a push piece on the door body or insulating box, the seesaw switch must be exposed so that it can be pressed and operated by this push piece, so the switch and push piece are not only visible from the outside, but also Also, the suppression piece comes into contact with the outside air and is exposed to the influence of dew, so there is a risk of electrical leakage.Furthermore, due to repeated suppression operations, aging becomes noticeable and damage is likely to occur due to wear.

On the other hand, the technology shown in the above-mentioned publication (■) uses a reed switch that operates in a magnetic relationship, but two magnets that are directly involved in the operation of this reed switch are placed on the door body and the insulation box body. In order to keep the magnets close to each other, a special storage part should be formed protruding near the hinge for opening and closing the door. There is a problem in that dew that adheres to the inner surface of the door due to the opening/closing operation of the body tends to move and enter the storage section.

Therefore, the present invention provides a refrigerator equipped with a reed switch as the door switch, and a door switch in which the reed switch and the magnet are arranged in a part that is less affected by dew.

[Structure of the Invention] Means for Solving the Problems The present invention provides a refrigerator in which rotatable shelves are arranged, and a partition wall that partitions the interior of the refrigerator below and a door that closes off the interior of the refrigerator. The one side facing the shelf is shaped roughly along the rotation locus of the edge of the shelf, and the product storage section has a bottom that faces into the warehouse and faces the partition wall when the door is closed, and is buried in an appropriate location within the bottom. To provide a refrigerator equipped with a magnet and a lid switch that is buried in a partition wall so as to face the magnet when the door is closed and controls the energization of electric components such as an internal light and a blower.

The bottom of the active article storage section not only acts as a placing member for placing articles, but also as a storing member for burying a magnet, and when the door is closed, the buried magnet can be used as a reed switch buried in the compartment wall. When the door is opened, the magnet is moved away from the reed switch. Furthermore, since the reed switch is buried within the compartment wall, it is not affected by condensation that occurs when opening and closing the door.

Example Embodiments of the present invention will be described based on the drawings.

Reference numeral 1 denotes a refrigerator, and 2 denotes an insulating box body that is constructed by filling a foam insulation material such as polyurethane between an outer box made of metal and an inner box made of synthetic resin, forming an interior that is open to the front.

The inside of the heat insulating box 2 is partitioned 1' down by a partition wall 6, with the upper part of the partition wall 6 serving as a freezing chamber 7 that is cooled to freezing temperature. In addition, the space below the partition wall 6 is divided by a partition plate 8
Refrigerating compartment 10 is divided into three upper and lower compartments, with the uppermost part being cooled to the refrigeration temperature, and the middle 141 (cooled to the ice temperature zone, IJ).
The uppermost part of the ice room 11 is a vegetable compartment 12, and containers (not shown) with an upward opening are disposed in the ice compartment 11 and the vegetable compartment 12 so as to be freely ejectable. 13, 14, 15 and 16
is a heat insulating door body which closes each of the above-mentioned chambers 7, 10, 11 and 12 in a freely openable and closable manner.

Rotating shelves 2 are provided in the freezer compartment 7 and the refrigerator compartment 10, respectively.
1.22 are arranged in multiple stages. The shelves 21 and 22 are disk-shaped and are rotatably held by a plurality of rollers rotatably supported by a holding plate.

Note that the lowermost shelves 21 and 22 of both chambers 7 and 10 are arranged directly above the partition wall 6 and the partition plate 8, respectively. Therefore, even if the items placed on the sides 21 and 22'' are located at the back, they can be moved to the front by rotating the shelves, making the feeding operation easier.

At the back corners of both sides of the refrigerator compartment 10 where the shelf 22 is separated from the inner box, a cold air blowing tact and a cold air suction duct (both not shown) are arranged with their outer surfaces shaped approximately along the rotation locus of the shelf 22. has been done.

31. 32 and 33 are door bodies serving as article storage sections arranged vertically in order on the inner surface of the door body 14 of the refrigerator compartment 10)
- Both sides of each protrude toward the shelf 22 side, and one surface facing the shelf 22 has an arc shape that substantially follows the rotation locus of the shelf 22.

Further, the inner surface of the door body 14 has a shape in which the center part protrudes forward in an arc shape with a smaller curvature than the above-mentioned - surface, which makes it possible to effectively utilize the dead space on both sides of the front side of the shelf 22. The depth of the left and right parts of the door pocket is made thicker than the depth of the center part to ensure the volume of the door pockets 31, 32 and 33. Further, the front surface of the door body 14 also has a central portion protruding forward in an arc shape to ensure a heat insulating thickness of the door body 14. Therefore, the entire door body 14 has a curved shape forming an arc.

In this embodiment, the door pockets 31 and 32 are made of transparent resin, and the door pocket 33 is made of milky white resin. A small bottle, a large bottle on the door 1-33,
Synthetic resin containers called plastic bottles 1 to 1 are each housed therein.

Reference numeral 37 denotes a partition member that partitions the door pocket 32 into left and right sides, and is held in an upper part of one wall of the door pocket 32 so as to be able to be fitted and removed using elasticity.

The inner surface of the door body 13 of the freezer compartment 7 has a shelf 2 similar to the door body 14.
A door pocket 41 is disposed in which the surface (-surface) facing the door pocket 1 is formed in an arc shape along the edge of the shelf. This door body 1
3 is also curved into an arc to match the door body 14, ensuring the volume of the door pocket 41 and the heat insulation thickness of the door body.

Both sides of the door pocket 41 protrude toward the shelf 21,
The bottom portion 42 is shaped to close the lower surface of the cylinder formed by the inner surface of the door body 13 and one surface of the door pocket 41,
When the door body 13 is closed, the top front part of the partition wall 6 and the bottom part 42 face each other when facing into the freezing chamber 7. The left and right portions of the bottom portion 42 are formed to protrude toward the inside of the refrigerator than the center portion, and the left and right portions (in this embodiment, the right portion because the hinge is attached on the right side) are provided with a horizontal door switch 46, which will be described later. A magnet 43 for controlling on/off is buried together with a holder 44 made of a heat insulating material such as expanded polystyrene. As shown in FIG. 2, the compartment 6 has a resin upper plate 6A facing the freezer compartment 7 side and supporting the shelf 21, and a resin lower plate 6B facing the refrigerator compartment 10 side.
It consists of a heat insulating material 6C such as styrofoam located between the upper plate 6A and the lower plate 6B, and its front part is curved so as to protrude further forward than the side wall of the heat insulating box 2.

Further, a reed switch 46 whose contacts are turned on and off (that is, closed and opened) by the magnetic force of the magnet 43 is buried in the front right portion of the partition wall 6.

47 is a holding heat insulating material for embedding the reed switch 46, and 48 is a cap that closes an inspection opening 49 formed in the lower plate 6B. Incidentally, this reed switch 46 and the aforementioned magnet 43 constitute a door switch. Furthermore, the reed switch 46 is connected to electrical components such as a cooling fan and an interior light (both not shown), and is configured to control the energization of the electrical components, so that the reed switch 46 is configured to control the energization of the electrical components. When the magnet 43 is close to the reed switch 46, it is opened (turned on) by the magnetic force of the magnet 43, the door body 13 is opened, the magnet 43 and the reed switch 46 are separated, and the magnet 43 is closed.
The reed switch 46 is configured to open (turn off) when the magnetic force of the reed switch 46 no longer reaches the reed switch 46.

Next, embedding of the reed switch 46 and the magnet 43 will be explained. With the magnet 43 inserted into the recess 45 formed in the lower part of the holder 44, hold it at a proper position in the bottom 42 of the resin inner wall plate 13B, and then
Foam insulation material 13 is placed between 3B and the metal door outer panel 13A.
C (at this time, the magnet 43 is positioned close to the inner lower surface of the bottom portion 42) to form the door body 13. 13D is door body 1
This is a backing containing a magnet provided in a portion facing the partition wall 6 of No. 3. On the other hand, with the reed switch 46 inserted into the recess 50 formed in the upper part of the retaining insulating material 47, the retaining insulating material 47 is fixed in the retaining recess 51 formed in the insulating material 6C, and the upper plate 6A and Insulation material 6C on lower plate 6B
Clamp and fix. At this time, the lead wire 52 of the reed switch 46 is led to the inspection port 49 side of the lower plate 6B. Then, the lead wire 52 is connected to a lead wire (not shown) extending from the electrical component, and the inspection port 49 is closed with the cap 48, thereby creating the partition wall 6. Therefore, the reed switch 46 can be removed by removing the cap 48 and the holding heat insulating material 47, making it easy to inspect and replace the reed switch 46, and also to hold the reed switch in a part that is not affected by dew drops. .

In addition, the door body 15 of the ice greenhouse 11 and the door body 16 of the vegetable compartment 12
The refrigerator 1 also has a curved shape similar to the door bodies 13 and 14.
The door bodies 13 to 16 are all flush with each other.

With the above configuration, each door body has a curved shape that projects forward, but since the space in front of the door body is necessary for opening and closing the door body, this curved shape reduces the installation area of the refrigerator 1. Even if it is increased, the adverse effect of the increased installation area is extremely small.

〔Effect of the invention〕

As detailed above, according to the present invention, since the magnet is embedded in the bottom of the article storage section that faces the inside of the refrigerator when the door is closed, a special protrusion is formed to accommodate the magnet. There's no need. In addition, since the reed switch is buried in the bottom of the article storage part of the partition wall and the part facing the magnet, it is possible to effectively utilize the part of the partition wall where articles are not placed (so-called dead space). Eliminates the influence of dew droplets on the reed switch due to door opening/closing operations.

[Brief explanation of the drawing]

Each figure shows an embodiment of the present invention. Figure 1 is a side view of the refrigerator with the door open, Figure 2 is an exploded perspective view of the compartment wall and door, and Figure 3 is a reed switch and FIG. 4 is an exploded perspective view of the periphery of the fixed portion of the magnet, and a vertical sectional view of the main part when the door is closed, showing the positional relationship of the door switch. DESCRIPTION OF SYMBOLS 1... Refrigerator, 6... Compartment wall, 7... Freezer room, 13... Door body, 21... Shelf, 41... Door boggle I, (goods storage part), 42... ...bottom, 43
...Magnet, 46...Reed switch.

Claims (1)

[Claims] 1. In a refrigerator in which a rotatable shelf is arranged, there is a partition wall that divides the interior of the refrigerator into an upper and lower section, and a shelf edge that is arranged on the inner surface of a door that closes the interior of the refrigerator and that faces the shelf. an article storage section having a shape approximately following a rotational locus of the door and a bottom that faces the partition wall when the door is closed; a magnet embedded in a suitable position within the bottom; and a magnet that faces the magnet when the door is closed. and a reed switch that is embedded in the compartment wall and controls energization of electrical components such as an internal light and a blower.