KR20130071919A - An automatic drawing door having a autowinder and a refrigerator thereof - Google Patents

An automatic drawing door having a autowinder and a refrigerator thereof Download PDF

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Publication number
KR20130071919A
KR20130071919A KR1020110139402A KR20110139402A KR20130071919A KR 20130071919 A KR20130071919 A KR 20130071919A KR 1020110139402 A KR1020110139402 A KR 1020110139402A KR 20110139402 A KR20110139402 A KR 20110139402A KR 20130071919 A KR20130071919 A KR 20130071919A
Authority
KR
South Korea
Prior art keywords
wire
door
winding device
refrigerator
automatic
Prior art date
Application number
KR1020110139402A
Other languages
Korean (ko)
Inventor
김명환
유대현
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020110139402A priority Critical patent/KR20130071919A/en
Publication of KR20130071919A publication Critical patent/KR20130071919A/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/47—Actuated drawers operated by mechanically-stored energy, e.g. by springs having both self-opening and self-closing mechanisms which interact with each other
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/483—Sliding drawers; Slides or guides therefor with single extensible guides or parts
    • A47B88/487—Sliding drawers; Slides or guides therefor with single extensible guides or parts with rollers, ball bearings, wheels, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • F25D25/025—Drawers

Abstract

PURPOSE: An automatically extractable door using an automatic winding device and a refrigerator having the same are provided to prevent a wire from becoming twisted or cut because the wire is wound around a winding device and stored inside the winding device and to improve durability. CONSTITUTION: An automatically extractable door using an automatic winding device comprises a drive unit, a wire (30), and an automatic winding device (100). The drive unit is installed on the inner side of a door (4) of a refrigerator and automatically opens and closes the door. The wire supplies power to the drive unit. When the door is opened, the wire is unwound from the automatic winding device unwinds the wire. When the door is closed, the wire is wound around the automatic winding device. The automatic winding device comprises a case (110), a leaf spring (130), and a winding shaft (120). The case receives the wound wire therein. The leaf spring has elastic restoring force. One end of the leaf spring is fixed to the winding shaft in the the case.

Description

Automatic retractable door using automatic winding device and refrigerator with same {AN AUTOMATIC DRAWING DOOR HAVING A AUTOWINDER AND A REFRIGERATOR THEREOF}

The present invention relates to a self-winding door using a self-winding device and a refrigerator having the same, more specifically, in the refrigerator having a self-winding door in accordance with the opening and closing of the door, the wire is twisted or unfolded by the operation The present invention relates to an automatic retractable door using an automatic winding device to be automatically wound up when closed through an automatic winding device, and to allow wires to be drawn out by the force of the door being drawn out when the automatic winding device is closed.

The refrigerator is a home appliance that is provided with a storage space shielded by a refrigerator door and stores food at a low temperature in the storage space. Such a refrigerator allows the food stored in the storage space to be optimally stored using cold air generated through heat exchange of a refrigerant circulating in a refrigeration cycle. Recently, in addition to the basic functions of the refrigerator, various functions have been added to increase the user's convenience, and the automatic retractable door is a kind of such function.

The automatic draw-out door is a conventional method in which an actuator is added to a door that is directly opened and closed by a user so that the door can be opened and closed by a driving force of an actuator rather than an attraction force, and is mainly used in a drawer type door called a drawer. This is because the drawer-type door is pulled out together, which requires more force to open and close the door of a conventional refrigerator.

As an actuator for drawing out the drawer, a drive motor is usually used, and a conductor for applying electric power to the drive motor is necessarily connected to the drive motor.

At this time, since the drawer type drawer-type door is drawn out and is connected from the power source for a long time, the lead wire is extended to be connected to the driving motor, and the connected wire may be twisted or broken during opening and closing of the door.

The present invention is to solve the problems of the prior art as described above, has the following object.

An object of the present invention is to prevent the wires, which are the conductors supplying power to the drive unit, from being pulled out or retracted in the drawer-type door of automatic draw, so that the wires are wound or drawn out of the automatic winding device so that the wires are not exposed to the outside. It is possible to eliminate the possibility of twisting or breaking and causing poor contact.

Another object of the present invention, there is a fear that the wire (wire) may be broken or separated due to interference with other components or carelessness of the operator during the manufacturing process or operation of the refrigerator, so that there is a fear of disconnection of the wire through the automatic winding device. To sweep.

Another object of the present invention, since the wire is wound and stored through the automatic winding device when the drawer is automatically closed, the wire is not folded or retracted phenomenon can be minimized to minimize the space occupied by unnecessary wire, wire Since the (wire) is wound around the optimized volume in the winding device, the compactness of the refrigerator parts is realized.

In order to achieve the above-mentioned object, the present invention will be realized by an embodiment having the following constitution as a preferred embodiment.

According to one embodiment of the invention, the present invention is mounted on the inside of the door of the refrigerator, the drive unit for automatically opening and closing the door in the drawer method; A wire that is a conductive wire for supplying power to the drive unit; And an automatic winding device in which the wire is unwound when the door is opened and the wire is automatically wound when the door is closed.

In this case, the automatic locking device, the wire is pulled out, or the case is wound up; A leaf spring having an elastic restoring force in a rotational direction; And a winding shaft in which one end of the leaf spring is fixed inside the case.

In addition, the wire is characterized in that the automatic winding by the elastic force of the leaf spring of the automatic winding device.

According to another embodiment of the present invention, a refrigerator main body provided with a refrigerating compartment and a freezing compartment therein; A refrigerator compartment door to open and close the refrigerator compartment; A freezing chamber door formed at a lower portion of the refrigerator body and opened and closed by a drawer type; A drive unit for automatically opening and closing the freezer door; A wire that is a conductive wire for supplying power to the drive unit; And an automatic winding device that the wire is released when the door is opened and the wire is automatically wound when the door is closed. The wire is drawn from the automatic winding device when the freezer door is opened. Offer a built-in refrigerator.

In this case, the automatic locking device, the wire is pulled out, or the case is wound up; A leaf spring having an elastic restoring force in a rotational direction; And a winding shaft in which one end of the leaf spring is fixed inside the case.

According to the aspects of the present invention having the configuration as described above, the present invention is a wire that is a wire for supplying power to the drive unit in the automatic drawer drawer type door is wound and stored in the winding device without folding or retracting wire Durability can be improved without causing problems such as twisting or cutting of the (wire).

The present invention can also minimize the occurrence of space occupied by unnecessary wires because the phenomenon that the wire is folded or retracted does not occur.

The present invention also enables compacting of the refrigerator components since the wires (wires) are wound in an optimized volume in the winding device.

1 is an elevation view showing a refrigerator equipped with an automatic winding apparatus of the present invention.
Figure 2 is a perspective view of the self-winding door equipped with the automatic winding device of the present invention.
Figure 3 is a perspective view of a drawer type door is equipped with an automatic winding device of the present invention.
Figure 4 is a detailed view showing the automatic winding apparatus of the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the self-drawing door and the refrigerator having the same using the automatic winding device according to the present invention will be described in detail.

Prior to this, terms and words used in the present specification and claims should not be construed as being limited to ordinary or dictionary terms, and the inventor should appropriately define the concept of the term to describe its invention in the best way The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

The present invention can be applied to any refrigerator including an actuator connected to a wire which is a conducting wire, in addition to the door driving. Hereinafter, the present invention will be described with reference to an example of a refrigerator having a bottom freeze type for convenience of explanation and understanding.

1 is a front view showing the appearance of a refrigerator according to the present invention, Figure 2 is a perspective view showing a self-drawing door is equipped with the automatic winding device of the present invention.

1 and 2, the refrigerator has an outer shape formed by a main body having a substantially rectangular parallelepiped shape, and a storage space for storing food is formed therein. The storage space of the refrigerator main body 1 is divided up and down so that a refrigerating chamber (unsigned) is formed in the upper portion, while a freezing chamber 2 is formed in the lower portion.

The opened front surface of the refrigerating chamber is shielded by a pair of left and right refrigerating chamber doors 3, and the open front surface of the freezing chamber 2 is shielded by one or a plurality of freezing chamber doors 4.

The refrigerating chamber door (3) is hinged to both sides of the refrigerator main body (1) is composed of a hinged door, the freezer door (4) is slidingly coupled to the refrigerator main body (1) is made of a drawer-type door. Here, the freezing chamber door 4 will be described in detail.

On the inner wall surface of the freezer compartment (2) is provided a rail assembly for withdrawing / entering the freezer compartment door (4) with the basket (5), the freezer door (4) on one side of the rail assembly is a basket (5) With the drive unit 10 is automatically installed to withdraw / withdraw.

The rail assembly is accommodated in a rail housing provided on the inner wall surface of the freezing compartment (2). The rail housings are provided on the left and right side walls of the freezing chamber 2, respectively, and extend from the front end to the rear end of the freezing chamber 2.

In addition, the rail housing may be fixed to the inner wall surface of the freezing compartment 2 by a coupling member such as a separate screw or to be coupled to a bracket (not shown) already mounted on the wall surface of the freezing compartment 2.

The rail assembly is configured such that a plurality of rails are sequentially stacked so as to slide while rolling by respective bearings (not shown) provided therein.

The drive unit 10 includes a drive motor and is engaged with the gear gear formed on the rail by the rotational operation of the drive motor so that the freezing chamber door 4 of the drawing type is automatically drawn out / retracted with the basket 5. do.

The drive motor provided in the drive unit 10 is composed of a bidirectional rotation motor that can selectively rotate in the forward and reverse direction. The rotating shaft of the driving motor is coupled to the driving shaft through an intermediate gear (not shown), and a wire 30, which is a lead wire for applying power to the driving motor, is received in a cable chain to electrically connect the driving motor to an external power source. And the cable chain is slidably coupled to the middle of the lower side of the rail.

Looking at the process of withdrawing / entering the freezer compartment door 10 in the refrigerator equipped with a safety device according to the present invention as follows.

That is, when the freezing chamber door 4 is pulled forward, the freezing chamber door 4 is pulled forward and the driving motor rotates in the opening direction. Then, the freezer door 4 is pulled out together with the basket 5 while the straight teeth formed on the rail and the teeth formed on the rotation shaft of the driving motor are engaged with each other to rotate in the opening direction. At the same time, since the rail assembly of the freezer compartment door 4 and the rail housing of the freezer compartment 2 are mutually coupled to each other, the rail assembly of the freezing compartment door 4 is slid to the front while gradually sliding relative movement to each other. Then, the freezing chamber door 4 is gradually opened, and the basket 5 is exposed to the outside as much as possible, so that food can be put or stored in the basket 5.

On the other hand, if the freezing chamber door 4 is pushed backward, the freezing chamber door 4 is pulled back to rotate the drive motor in the closing direction. Then, while the teeth of the rail and the teeth of the drive motor rotation shaft is engaged to rotate in the closing direction, the freezer compartment door 4 is introduced into the rear with the basket (5). At the same time, the rail assembly of the freezing compartment door 4 is overlapped while sliding in the opposite direction to the opening direction by the rail housing of the freezing compartment 2 so that the freezing compartment door 4 gradually closes, and the basket 5 is closed. It is completely inserted into the freezer compartment to refrigerated food stored in the basket (5).

When the freezer compartment door 4 moves forward and backward, the driving unit 10 moves together with the freezer compartment door 4. In this process, tension is applied to the wire 30 which is the lead wire, which may cause a problem such as the wire 30 is separated or separated from the driving unit 10. In order to prevent this, it is wrapped by a chain to protect the wire wire 30 is the lead wire.

In the existing automatic refrigerator automatic take-out system, when the wire 30 connected to the drawer-type freezer door 4 is withdrawn or returned to its original state, the chain is retracted or stretched. In order to protect the existing refrigerator wire 30, the cost competitiveness is reduced by using a chain which is a separate structure, and waste of unnecessary space occurs in a section in which the chain operates.

In this way, the automatic door disengagement system of the refrigerator includes a chain-type protection tube to retract when the door is closed to prevent the wire from being twisted or broken when the wire connected to the drawer is withdrawn or returned to its original state. When opened, try to unfold. That is, when using a chain, which is a separate structure to protect the refrigerator wire, the cost competitiveness is lowered, and unnecessary space is generated in the section in which the chain operates, thereby reducing convenience and economy.

Hereinafter, the wire breakage prevention and space optimization using the automatic winding apparatus of the present invention will be described with reference to FIGS. 3 and 4. Figure 3 is a perspective view showing a drawer-type door equipped with the automatic winding device of the present invention, Figure 4 is a detailed view showing the automatic winding device of the present invention.

3 and 4, the present invention is mounted inside the door of the refrigerator, the drive unit 10 for automatically opening and closing the door in the drawer method; A wire 30 which is a conductive wire for supplying electric power to the driving unit; And an automatic winding device 100, in which the wire 30 is unwound when the door is opened and the wire 30 is automatically wound when the door is closed, the automatic retracting device including the automatic winding device.

3 does not show a drive unit 10 for automatically drawing out the drawer type door of the present invention, but as shown in FIG. 2, the drive unit 10 is provided on one side of the freezer door 4, The gear unit is provided on the driving motor and the rotating shaft to engage with the teeth formed on the inner rail of the freezing chamber 2. In this case, the driving unit is formed to electrically connect the wire 30 to the rear of the automatic winding device 100 in FIG. 3.

In the related art, since the wire 30 is not provided with the automatic winding device 100, the wire 30 is protected by the chain tube and the driving unit 10 is integrally connected with the freezing chamber door 4. It moves together back and forth.

Accordingly, when the door is closed, the drive unit 10 enters into the freezer compartment 2, and the chain tube including the wire 30 is wrinkled. On the contrary, when the door is opened, the driving unit 10 is drawn out to the freezing chamber 2 and the chain including the wire 30 is opened.

Although protecting the wire 30 through such a conventional chain can prevent the wire 30 from being broken or twisted, unnecessary space is required, and economical efficiency may occur depending on the production of the tube chain.

As shown in FIG. 4, the automatic locking device 100 includes: a case 110 in which the wire 30 is pulled out, drawn out or wound; A leaf spring having an elastic restoring force in a rotational direction; And a winding shaft 120 in which one end of the leaf spring 130 is fixed inside the case 110.

In addition, the wire 30 is characterized in that the automatic winding by the elastic force of the leaf spring 130 of the automatic winding device.

Accordingly, when the automatic winding device 100 of the wire of the present invention is used, the wire 30 wound on the automatic winding device 100 is pulled out when the freezer door 4 which is a drawer type door is pulled out and connected with the central axis. The leaf spring 130 is wound around the winding shaft 120 to generate an elastic stress. In addition, when the drawer-type door is pushed to close, the wire 30 is automatically wound and returned to its original position by the elastic stress of the leaf spring 130 acting on the wire 30.

Accordingly, since the wire 30 does not fold or retract, the generation of space occupied by the unnecessary wire 30 can be minimized, and the wire 30 is wound and stored in the winding device 100 without being folded or retracted. Therefore, it is possible to improve durability without causing a problem such as twisting or cutting of the wire (wire, 30), and since the wire wire 30 is wound and takes up the optimized volume in the winding device 100, the refrigerator part Compactness is possible.

Looking at another embodiment of the present invention with reference to Figures 1 and 3, the refrigerator body (1) having a refrigerator compartment and a freezing compartment (2) therein; A refrigerator compartment door 3 for opening and closing the refrigerator compartment; A freezing chamber door (4) formed at a lower portion of the refrigerator body (1) and opened and closed by a drawer type; A drive unit (10) for automatically opening and closing the freezer door (4); A wire 30 which is a conductive wire for supplying power to the driving unit 10; And an automatic winding device 100 that the wire 30 is unwound when the door is opened and the wire 30 is automatically wound when the door is closed, and the automatic winding device 10 when the freezer door 4 is opened. When the wire 30 is drawn out from and closed, it provides a refrigerator in which the wire 30 is wound around the automatic winding device 100.

3 and 4, in the refrigerator of the present invention, the automatic locking device 100 includes: a case 110 in which the wire 30 is pulled out, drawn out or wound; A leaf spring having an elastic restoring force in a rotational direction; And a winding shaft 120 in which one end of the leaf spring is fixed inside the case.

The above-described embodiment can be easily carried out by a person having ordinary knowledge in the art (hereinafter referred to as a person skilled in the art) to use a self-winding door and a refrigerator having the same according to the present invention. The present invention is not limited to the above-described embodiment and the accompanying drawings, which are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that various changes, substitutions, and alterations can be made hereto without departing from the spirit of the present invention, and it is obvious that those parts easily changeable by those skilled in the art are also included in the scope of the present invention.

1: refrigerator body 3: refrigerator door
4: freezer door 5: basket
10: drive unit 30: wire (wire)
100: automatic winding device 110: case
120: winding axis 130: leaf spring

Claims (5)

A driving unit mounted inside the door of the refrigerator and automatically opening and closing the door in a drawer manner;
A wire that is a conductive wire for supplying power to the drive unit; And
The automatic retractable door using the automatic winding device comprising a; automatic winding device that the wire is unwinded, the wire is automatically wound when the door is opened.
The method of claim 1,
The automatic locking device,
A case in which the wire is pulled out, or is wound;
A leaf spring having an elastic restoring force in a rotational direction; And
Automatic retractable door using an automatic winding device, characterized in that it comprises a; winding shaft one end of the leaf spring is fixed in the case.
3. The method of claim 2,
The wire
Automatic take-out door using the automatic winding device, characterized in that the automatic winding by the elastic force of the leaf spring of the automatic winding device.
A refrigerator body having a refrigerator compartment and a freezer compartment therein;
A refrigerator compartment door to open and close the refrigerator compartment;
A freezing chamber door formed at a lower portion of the refrigerator body and opened and closed by a drawer type;
A drive unit for automatically opening and closing the freezer door;
A wire that is a conductive wire for supplying power to the drive unit; And
The wire is unwinded when the door is opened, the automatic winding device is automatically wound when the door is closed; Including the wire is drawn from the automatic winding device when the freezer door is opened, the wire is wound around the automatic winding device Onboard refrigerator.
The method of claim 4, wherein
The automatic locking device,
A case in which the wire is pulled out, or is wound;
A leaf spring having an elastic restoring force in a rotational direction; And
And a winding shaft in which one end of the leaf spring is fixed inside the case.
KR1020110139402A 2011-12-21 2011-12-21 An automatic drawing door having a autowinder and a refrigerator thereof KR20130071919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110139402A KR20130071919A (en) 2011-12-21 2011-12-21 An automatic drawing door having a autowinder and a refrigerator thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110139402A KR20130071919A (en) 2011-12-21 2011-12-21 An automatic drawing door having a autowinder and a refrigerator thereof

Publications (1)

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KR20130071919A true KR20130071919A (en) 2013-07-01

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