KR19980053170A - Refrigerator with door lock - Google Patents

Abstract

The present invention relates to a refrigerator having a door lock function for forming a negative pressure in the freezer compartment and the refrigerating compartment of the refrigerator.

In the refrigerator 10 in which the upper door 11 and the lower door 12 are formed, the present invention is mounted so as to communicate the inner and outer surfaces of the doors 11 and 12, and the openings and the air holes A in front and rear, respectively. Case 21 is formed; A support 26 mounted to protrude on the opening of the case 21 and having openings and air holes A formed in front and rear, respectively; A movable plate 22 mounted on the inner surface of the case 21 so as to be slidable, and having openings and air holes A formed in front and rear, respectively; A pressure rod (25) mounted on the support (26) so as to be slidable and moving the movable plate (22) by a handle (25a) exposed to the outside; A cap (27) detachably mounted on the support (26) and protecting the handle (25a) of the pressure rod (25); Pumping means for discharging the synchronous introduced into the air hole A of the case 21 to the outside; And return means for returning the internal sound pressure to the atmospheric pressure by the guide tube 32, the return button 30, etc., which are mounted to communicate the inner and outer sides of the door (11) (12).

Accordingly, the present invention has the effect of preventing the cold air is lost by lifting the door or infants frequently open the door.

Description

Refrigerator with door lock

The present invention relates to a refrigerator having a door lock function, and more particularly, a door lock function of forming a sound pressure in a freezer compartment and a refrigerating compartment when necessary to prevent the refrigerator door from being lifted or the infants frequently opening the door to prevent cold air from being lost. It is about a refrigerator with a.

With reference to FIG. 1, a home refrigerator typically includes an upper door 11 for opening and closing a freezer compartment and a lower door 12 for opening and closing a refrigerating compartment, and a compressor 13, a fan motor 14, and an evaporator 15. Refrigerant circulation system). Compressor 13 and condenser in such a configuration compresses and condenses the refrigerant to liquefy, vaporizes the liquid refrigerant in the evaporator 15, and operates the fan motor 14 to rapidly convert the latent heat of the surrounding gas into the refrigerant vaporization heat. Absorb.

The compressor 13 is turned on until the temperature of the refrigerating compartment reaches a predetermined value (usually 4 to 5 ° C.), lowers the temperature inside the freezing compartment and the refrigerating compartment, and turns off when the temperature is reached. After that, when the temperature of the refrigerating chamber becomes more than a predetermined value, the compressor 13 and the fan motor 14 are operated again, and the temperature adjustment operation is repeated, but the time required for one repetition is usually about 30 minutes.

On the other hand, the upper door 11 and the lower door 12 to maintain the airtight by using the magnetization packing to block the leakage of the refrigerant, the compressor 13 when the magnetic force of the packing is weakened or due to excessive use of the compressor 13 Fan motor 14 is operated frequently, causing unnecessary power consumption.

In addition, since the upper door 11 and the lower door 12 does not have a special locking means, the infants may open frequently and unnecessarily, causing loss of cold air, and may also cause a safety accident while there is no guardian.

Accordingly, the present invention provides a refrigerator having a door lock function to maintain the air tightness by forming a negative pressure inside the freezer compartment and the refrigerating compartment as necessary to prevent the door of the refrigerator is lifted or the children frequently open the door to lose the cold air. Its purpose is to provide.

1 is a perspective view showing a partially cut refrigerator according to the present invention,

2 is a configuration diagram showing, in partial section, an apparatus for forming a sound pressure;

3 is a configuration diagram showing a device for releasing sound pressure in a partial cross section;

* Description of the symbols for the main parts of the drawings *

11: upper door 12: lower door

13: Compressor 14: Fan motor

15: evaporator 20: door lock

21, 31: Case 22: Moving plate

23: Front valve 24: Rear valve

25: Pressure rod 25a: Handle

26: support 26b: projection

27: cap 30; return button

32: Information Center 33: Blocking Stopper

34: Spring A: Air hole

W1, W2: Junction

In order to achieve the above object, the present invention provides a refrigerator 10 in which upper doors 11 and lower doors 12 are formed to open and close functional spaces of a freezer compartment and a refrigerator compartment: the doors 11 and 12. A case 21 mounted to communicate the inner and outer sides of the casing, and having openings and air holes A formed in front and rear, respectively; A support 26 mounted to protrude on the opening of the case 21 and having openings and air holes A formed in front and rear, respectively; A movable plate 22 mounted on the inner surface of the case 21 so as to be slidable, and having openings and air holes A formed in front and rear, respectively; A pressure rod (25) mounted on the support (26) so as to be slidable and moving the movable plate (22) by a handle (25a) exposed to the outside; A cap (27) detachably mounted on the support (26) and protecting the handle (25a) of the pressure rod (25); Pumping means for discharging air introduced into the air hole A of the case 21 to the outside; And a return means for returning the internal sound pressure to an atmospheric pressure state by a guide tube 32 and a return button 30, etc., which are mounted to communicate the inner and outer sides of the doors 11 and 12. Provide a refrigerator with

At this time, the pumping means is a front valve 23 mounted to block the air hole (A) to the outer surface on the case 21, and to block the air hole (A) to the outer surface on the movable plate (22). A rear valve 24 to be mounted is provided.

In addition, the return means is mounted to the inner end of the guide tube 32 and has a case (31) with an air hole (A), pressurized by a spring (34) inside the case (31) and installed in the air hole ( Through A) is provided with a stopper 33 connected to one end of the return button (30).

EXAMPLE

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a perspective view showing a partially cut refrigerator according to the present invention.

The present invention is applied to the refrigerator 10 in which each of the upper doors 11 and the lower doors 12 for opening and closing the functional spaces of the freezer compartment and the refrigerating compartment is provided. The door control device 20 for forming a sound pressure and the sound pressure Return button 30 for releasing the structure is exposed to the outside of the door (11, 12) is mounted.

Since the door lock device 20 is a force acting during operation, it is installed on the hinge side of the doors 11 and 12 to prevent the doors 11 and 12 from being opened during operation. When the refrigerating compartment and the freezing compartment have independent refrigerant circulation systems, respectively, the door lock device 20 and the return button 30 are installed in the upper door 11 and the lower door 12, respectively, but in the case of having the same refrigerant circulation system, the upper door ( 11) or in the lower door (12).

1 is a block diagram showing, in partial cross-section, an apparatus for forming a sound pressure.

The door control device 20 according to the present invention has a fixed structure such as a case 21, a support 26, a cap 27, a movable plate 22, a pressure rod 25, a front valve 32, and a rear valve 24. The movable structure such as) is integrally assembled.

In this case, the case 21 of the present invention is mounted to communicate the inner and outer surfaces of the doors 11 and 12, and openings and air holes A are formed in front and rear, respectively.

The case 21 has a cylindrical container structure having a bottom surface, all surfaces of the inside to maintain a high-precision surface roughness. On the bottom surface, two air holes A having a diameter of about 10 mm are formed.

Moreover, the support stand 26 of this invention is mounted so that it may protrude on the opening of the case 21, and the opening and the air hole A are formed in front and back, respectively.

The support 26 also has a cylindrical container structure having a bottom surface, which is screwed or press-fitted into the opening of the front valve 23. On the bottom surface, a plurality of air holes A having a diameter of about 10 mm are formed, and on the outer circumferential surface, a plurality of protrusions 26b for mounting a cap 27 to be described later are formed.

In addition, the movable plate 22 of the present invention is mounted on the inner surface of the case 21 so as to be slidable, and openings and air holes A are formed in front and rear, respectively.

The movable plate 22 also has a cylindrical container structure having a bottom surface, the bottom surface and the outer peripheral surface of the inside to maintain a high-precision surface roughness. On the bottom surface, two air holes A having a diameter of about 10 mm are formed.

In addition, the pressure rod 25 of the present invention is slidably mounted on the support 26 and moves the movable plate 22 by a handle 25a exposed to the outside. The pressure rod 25 is a T-shaped structure having a handle 25a is joined to the center of the movable plate 22. The handle 25a is formed in a size that is easy for a user to manually operate, and protrudes outward of the support 26 even when pushed in as much as possible.

In addition, the cap 27 of the present invention is detachably mounted on the support 26 and protects the handle 25a of the pressure rod 25.

The cap 27 uses a flexible material such as plastic, and has a structure in which the cap 27 is engaged with the protrusion 26b of the support 26 and is demounted. It is also possible to open and close the cap 27 by forming a spiral instead of the protrusion 26b.

In addition, the present invention uses the air introduced into the air hole (A) of the case 21 and the pumping means to be discharged to the outside.

The pumping means has a function of discharging the air in the inner space of the upper door 11 and the lower door 12 to the outside by the manual force of the user.

At this time, the pumping means is a front valve 23 mounted to block the air hole (A) to the outer surface on the case 21, and to block the air hole (A) to the outer surface on the movable plate (22). And a rear valve 24 to be mounted.

The front valve 23 is welded onto the case 21 at the central junction W1 using one plate. The front valve 23 performs a one-way transfer function to move the air inside the outside only.

The rear valve 24 is welded onto the case 22 at the joint portion W2 on one side by using each plate cut in accordance with the number of air holes A. FIG. The rear valve 24 also performs a one-way transfer function to move the air inside only to the outside.

In the case of using the door lock device 20 having such a configuration, when the user opens the cap 27 and pulls the handle 25a, as much air as the stroke volume is collected between the case 21 and the movable plate 22 and the handle ( Pushing 25a) releases the collected air to the outside. When the internal sound pressure reaches a predetermined value during the repeated several times of this operation, since manual operation is no longer possible, the handle 25a is pushed in and the cap 27 is closed.

3 is a block diagram showing, in partial cross section, a device for releasing sound pressure;

The present invention uses a return means for returning the internal sound pressure to the atmospheric pressure by the guide tube 32, the return button 30, etc., which are mounted to communicate the inner and outer surfaces of the doors 11 and 12.

The return means is used in the case where it is difficult for the elderly to open and close the doors 11 and 12 by forming a negative pressure inside the door lock device 20 described above, and in the vicinity of the door lock device 20 (FIG. 1). Install.

At this time, the return means is mounted on the inner end of the guide tube 32 and has an air hole (A), and the spring (34) is mounted in the case 31 and mounted and the air hole ( Through A) is provided with a stopper 33 is connected to one end of the return button (30).

The guide tube 32 has a cylindrical container structure having a bottom surface, and is mounted so that the bottom surface having a plurality of air holes A faces outward.

The case 31 is a form in which the iron plate is formed into a small box shape, and a part of the side and the upper surface is opened for convenience of assembly. The bottom surface is formed with an air hole (A) in communication with the guide tube (32).

The blocking stopper 33 maintains a high-precision surface roughness at the bottom surface, and is in close contact with the bottom surface of the case 31 by the spring 34 to block the air hole (A).

The return button 30 is supported by the front and the stopper plug 33 of the guide tube 32 and is mounted so as to slide.

Accordingly, when the user presses the return button 30, the blocking plug 33 pressurized to the air hole A side by the spring 34 retreats, and the outside air passes through the air hole A of the guide tube 32. And the inside of the freezing compartment and the refrigerating compartment are easily opened to the atmospheric pressure state again because the suction hole is inside the air hole A of the stopper plug 33.

On the other hand, the embodiment of the present invention has been described with respect to the manual operation of the door lock device 20, but if you install a switch (not shown) connecting the solenoid (not shown) and applying power to the handle (25a) of the switch It is also possible to automatically pump one stroke per operation.

As described above, the refrigerator having the door locking function of the present invention maintains the air tightness by forming a negative pressure inside the freezer and the refrigerating chamber as necessary to prevent the door from being lifted or the children frequently opening the door to prevent the loss of cold air. It is effective.

While the invention has been shown and described with reference to certain preferred embodiments, it will be appreciated that the invention can be modified and modified in various ways without departing from the spirit or scope of the invention as set forth in the claims below. One of ordinary skill in the art will readily know.

Claims (3)

In the refrigerator 10 in which each of the upper door 11 and the lower door 12 for opening and closing the functional space of the freezer compartment and the refrigerating compartment is formed: A case 21 mounted to communicate the inner and outer surfaces of the doors 11 and 12, and having openings and air holes A formed in front and rear, respectively; A support 26 mounted to protrude on the opening of the case 21 and having openings and air holes A formed in front and rear, respectively; A movable plate 22 mounted on the inner surface of the case 21 so as to be slidable, and having openings and air holes A formed in front and rear, respectively; A pressure rod (25) mounted on the support (26) so as to be slidable and moving the movable plate (22) by a handle (25a) exposed to the outside; A cap (27) detachably mounted on the support (26) and protecting the handle (25a) of the pressure rod (25); Pumping means for discharging air introduced into the air hole A of the case 21 to the outside; And The door control function, characterized in that it comprises a return means for returning the internal sound pressure to the atmospheric pressure by the guide tube 32, the return button 30, etc., which are mounted to communicate the inner and outer sides of the door (11) (12). Refrigerator. 2. The pump according to claim 1, wherein the pumping means includes a front valve (23) mounted to block the air hole (A) outwardly on the case (21), and an air hole (A) on the movable plate (22). Refrigerator having a door lock function, characterized in that it comprises a rear valve (24) mounted to shut off to the side. The method of claim 1, wherein the return means is mounted to the inner end of the guide tube 32 and has a case (31) having an air hole (A), the inside of the case 31 is pressed by a spring (34) And a shut-off stopper 33 connected to one end of the return button 30 through the air hole A.