JP2001091153A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a door switch from freezing and to prevent the door switch from being brought into a defective function. SOLUTION: A switch cover 36 to cover a door switch 30 is integrally situated at a rail board 35 mounted on an inner box 23 of a freezing chamber 28. A reinforcing plate 37 made of a metal plate situated on the side of the inner box 23 is integrally provided with a pipe contact part 38 fitted in an antisweating pipe 40, and a cover contact part 39 making contact with the inner surface of a switch cover 36 in a state to extend through the inner box 23. By transferring the heat of the antisweating pipe 40 to a door switch 30 through the reinforcing plate 37, the operation element 30a of the door switch 30 is prevented from freezing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator provided with a door switch at the edge of a front opening of a storage room, the door switch corresponding to a drawer-type door for opening and closing the front opening.

[0002]

FIG. 5 shows an example of a conventional structure of this type of refrigerator. In FIG. 5, the lowermost storage room of the storage rooms of the refrigerator body 1 is a freezer room 2,
A door (not shown) for opening and closing the front opening of the freezing compartment 2 is of a drawer type. A switch recess 4 is formed in the inner box 3 of the freezer compartment 2 at the edge of the front opening of the freezer compartment 2, and a door switch 5 is provided in the switch recess 4. ing. The switch cover 6 that covers the door switch 5 is made of, for example, plastic, and is provided with a pin 6a and a boss 6b.
It is configured to be inserted into the hole 4a formed in the inner box 3 and attached to the inner box 3 by screwing a screw 7 into the boss 6b from the outside (foam insulating material side) of the inner box 3. The door switch 5 is connected to a connector 8 provided in the switch recess 4.

A rail recess 9 extending rearward is formed above the switch recess 4 of the inner box 3.
A rail plate 10 is arranged on the inner surface of the inner box 3 so as to cover the rail recess 9. This rail plate 10
The first and second projections 10a, 10b projecting from the back side are inserted into holes 9a, 9b formed in the rail recess 9 of the inner box 3 and temporarily fixed, and the plate is inserted through the screw insertion hole 10c. Screw 1
1 is attached to the inner box 3 by screwing it into a screw hole 12a of a metal reinforcing plate 12 arranged on the outer side surface (foam insulating material side) of the inner box 3.

In the above-described conventional configuration, the temperature of the operator 5a of the door switch 5 responding to the opening and closing of the door is minus (below freezing). If it freezes, the function of the door switch 5 may be defective.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a refrigerator capable of preventing a door switch portion from freezing and preventing a door switch from malfunctioning. is there.

[0006]

In order to achieve the above object, the present invention provides a door switch responsive to a drawer type door for opening and closing the front opening at the edge of the front opening of the storage room. In the refrigerator provided, a rail plate provided on the inner surface of the inner box of the storage room and having a rail portion for guiding the sliding movement of the door in the front-rear direction, and disposed on the outer surface of the inner box of the storage room. A metal reinforcing plate attached to and fixed to the inner box together with the rail plate, and a dew-proof pipe disposed at an edge of a front opening of the storage room, wherein the door switch is provided on the rail plate. And a switch contact portion for integrally contacting the reinforcing plate and a cover contact portion for penetrating the inner box and contacting the switch cover portion. It is characterized by having .

According to this structure, the heat of the dew-proof pipe is transmitted to the switch cover via the metal reinforcing plate, so that the door switch can be prevented from falling below freezing. Can be prevented from freezing.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. First, in FIG. 4 showing the entire appearance of the refrigerator, the refrigerator body 21 has a well-known structure in which a foam insulating material (not shown) is filled between an outer box 22 made of a steel plate and an inner box 23 made of a synthetic resin. It is configured as an insulated box. The refrigerator main body 21 is provided with a refrigerating room 24, a vegetable room 25, an ice making room 26, a switching room 27 capable of switching the internal temperature in a plurality of stages, and a freezing room 28 in order from the top as a storage room (however, Ice making room 26 and switching room 27
Are arranged side by side). The switching room 2
Reference numeral 7 denotes a well-known configuration that is used in various modes such as a freezing room, a chilled room, a refrigerator room, and a vegetable room according to switching of the internal temperature.

A hinge-opening door 24a is provided on the front of the refrigerator compartment 24. A drawer-type storage compartment is provided on each front of the vegetable compartment 25, the ice making compartment 26, the switching compartment 27 and the freezing compartment 28. Doors 25a, 26a, 27a and 28a are slidably provided in the front-rear direction.

Here, the structure of the door switch 30 of the lowermost freezer compartment 28 of the storage compartment will be described with reference to FIGS. In the freezer compartment 28, a switch recess 31 is formed on the left side wall of the inner box 23, and a rail recess 32 is formed above the switch recess 31. Switch recess 3
1 includes a connector 33 for connecting the door switch 30.
Is provided. A plastic rail plate 35 having a rail portion 34 extending rearward is disposed on the inner side surface of the inner box 23 (surface on the side of the freezing compartment 28). A switch cover 36 that covers the switch 30 is provided integrally.

A metal reinforcing plate 37 is disposed on the outer side surface (on the side of the foam insulation) of the left side wall of the inner box 23. The reinforcing plate 37 is integrally provided with a pipe contact portion 38 having a U-shaped cross section at the front, and a cover contact portion 39 having an inverted L-shape at the lower portion of the front. . Of these, the pipe contact portion 38 is fitted to a dew-proof pipe 40 disposed inside the left side wall of the refrigerator body 21 (the edge of the front opening of the freezer compartment 28), and an aluminum tape 41 is provided.
(See FIG. 2). Further, the cover contact portion 39 penetrates through the inner box 23 through an opening 42 formed in the inner box 23 and comes into contact with the inner surface of the switch cover 36 (see FIG. 3).

In the rail plate 35, the first and second convex portions 43 and 44 projecting from the rear side are inserted into holes 45 and 46 formed in the rail concave portion 32 of the inner box 23 and temporarily. Screw the countersunk screw 48 inserted through the screw insertion hole 47 into the inner box 2
3 is attached to the inner box 23 by screwing into the screw holes 49 of the reinforcing plate 37 arranged on the outer surface (foam insulating material side). As shown in FIG. 3, the door switch 30 is disposed between the cover contact portion 39 and the inner box 23 inside the switch cover portion 36 in a state where the door switch 30 is connected to the connector 33. The operation element 30a projects forward from the switch cover section 36.
The space between the inner box 23 and the outer box 22 is filled with a foamed heat insulating material made of urethane foam (not shown). This foam insulation is used for the door switch 3 described above.
0, foam filling is performed in a state where the rail plate 35 and the reinforcing plate 37 are assembled to the inner box 23.

In the above configuration, the door 28a of the freezer compartment 28
Is closed, the operator 30a of the door switch 30 is pressed by the edge of the door 28a, and the door switch 30 is turned off. When the door 28a is opened, the operator presses the operator 30a of the door switch 30. Is released, the operator 30a projects forward, and the door switch 30 is turned on accordingly.

Here, the pipe contact portion 38 of the metal reinforcing plate 37 is fitted to the dew-proof pipe 40 and the cover contact portion 39 is brought into contact with the switch cover portion 36. Is transmitted to the switch cover portion 36 via the reinforcing plate 37, thereby preventing the door switch 30 from falling below freezing. Thus, even if water, juice, or the like is applied to the door switch 30, the operator 30a of the door switch 30 can be prevented from freezing, and the door switch 30 can be prevented from malfunctioning. .

Further, according to the above-described embodiment, since the switch cover 36 can be reinforced by the cover contact portion 39, the switch cover 36 can be prevented from being deformed by the foaming pressure of the foam heat insulating material. Further, since the switch cover 36 is provided integrally with the rail plate 35, the switch cover 36 is provided with pins 6a and bosses 6b for attaching the switch cover 6, like the conventional switch cover 6. No need. For this reason, when attaching the switch cover part 36, the connector 33 and its lead wire 33a are not pinched between the switch cover part 36 and the inner box 23, and the mounting workability can be improved. In the related art, when the switch cover 6 is attached to the inner box 3, there is a possibility that the connector 8 or its lead wire may be sandwiched between the pins 6 a or the boss portions 6 b of the switch cover 6 and the inner box 3.

In addition, the switch cover 36 can be simultaneously attached to the inner box 23 by attaching the rail plate 35 to the inner box 23, so that the switch cover 6, which is conventionally required as a separate component, and the switch cover 6 are attached to the inner box 3. Dedicated screw 7 can be eliminated, the number of parts can be reduced correspondingly, the number of assembly steps can be reduced, and the cost can be reduced.

In the above-described embodiment, the case where the present invention is applied to the door switch 30 for the freezing room 28 is exemplified. However, the present invention is not limited to this case. It can also be applied to the door switch part.

[0018]

As is apparent from the above description, according to the present invention, the edge of the front opening of the storage room is provided with a door switch which responds to a drawer type door for opening and closing the front opening. In this case, the door switch portion can be prevented from freezing, the door switch can be prevented from malfunctioning, and the switch cover is not required as a separate component, so that the effects can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part showing one embodiment of the present invention.

FIG. 2 is a cross-sectional plan view of a main part.

FIG. 3 is a cross-sectional plan view of a main part at a different part from FIG. 2;

FIG. 4 is an external perspective view of the entire refrigerator.

FIG. 5 is a diagram corresponding to FIG. 1 showing a conventional example.

[Explanation of symbols]

21 is a refrigerator main body, 22 is an outer box, 23 is an inner box, 28 is a freezing room (storage room), 28a is a door, 30 is a door switch, 33
Is a connector, 34 is a rail portion, 35 is a rail plate, 36 is a switch cover portion, 37 is a reinforcing plate, 38 is a pipe contact portion, 39 is a cover contact portion, and 40 is a dew-proof pipe.

Claims (1)

[Claims] 1. A refrigerator provided with a door switch responsive to a drawer-type door for opening and closing the front opening at an edge of a front opening of the storage room, wherein the refrigerator is provided on an inner surface of an inner box of the storage room. A rail plate having a rail portion for guiding sliding movement of the door in the front-rear direction; and a metal reinforcement disposed on an outer surface of the inner box of the storage room and fixed to the inner box together with the rail plate. A plate, and a dew-proof pipe provided at an edge of a front opening of the storage room. A switch cover portion that covers the door switch is integrally provided on the rail plate. A refrigerator, wherein a pipe contact portion that contacts the dew-proof pipe and a cover contact portion that penetrates the inner box and contacts the switch cover portion are provided integrally.