KR20110137425A - Apparatus and method for controlling of door for refrigerator - Google Patents

Apparatus and method for controlling of door for refrigerator Download PDF

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Publication number
KR20110137425A
KR20110137425A KR1020100057356A KR20100057356A KR20110137425A KR 20110137425 A KR20110137425 A KR 20110137425A KR 1020100057356 A KR1020100057356 A KR 1020100057356A KR 20100057356 A KR20100057356 A KR 20100057356A KR 20110137425 A KR20110137425 A KR 20110137425A
Authority
KR
South Korea
Prior art keywords
door
refrigerator
electromagnet
refrigerator door
safety switch
Prior art date
Application number
KR1020100057356A
Other languages
Korean (ko)
Inventor
황계환
Original Assignee
주식회사 대우일렉트로닉스
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 주식회사 대우일렉트로닉스 filed Critical 주식회사 대우일렉트로닉스
Priority to KR1020100057356A priority Critical patent/KR20110137425A/en
Publication of KR20110137425A publication Critical patent/KR20110137425A/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/0042—For refrigerators or cold rooms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
    • E05C19/166—Devices holding the wing by magnetic or electromagnetic attraction electromagnetic
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/614—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • 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
    • F25D27/00—Lighting arrangements
    • F25D27/005—Lighting arrangements combined with control means
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/006—Safety devices

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Refrigerator Housings (AREA)

Abstract

PURPOSE: A door control device and method are provided to enable a user to close a door with small power and to prevent save accidents by reducing closing speed of a door. CONSTITUTION: A door control device comprises a door switch(11), a door safety switch(12), an electromagnet(13), a permanent magnet(21), and a motor controller(22). The door switch is installed in the refrigerator body and turns a room lamp on or off according to opening and closing of a refrigerator door(20). The door safety switch selectively supplies electricity to the electromagnet, according to the opening and closing of the refrigerator door, in order to selectively convert polarity of the electromagnet. The magnetic force is generated between the permanent magnet and electromagnet. The motor controller controls the rotation direction, rotation angle, and rotation speed of the refrigerator door.

Description

Refrigerator door control device and door control method {APPARATUS AND METHOD FOR CONTROLLING OF DOOR FOR REFRIGERATOR}

The present invention relates to a door control device and a door control method for a refrigerator, and more particularly, to a door control device for a refrigerator including a door switch for detecting the opening or closing of the door to control the lighting and lighting of the indoor light installed in the refrigerator; It relates to a door control method.

In general, an indoor lamp is provided inside a storage compartment of a refrigerator.

The indoor light is turned on when the refrigerator door is opened, and is configured to provide a convenience to the user so that the user can easily identify the contents stored in the refrigerator at night or in a dark place around the refrigerator.

The door switch for controlling the lighting and turning off of the indoor light is generally installed on the interior wall of the refrigerator or the front of the main body, and part of the door switch is installed to protrude so as to contact the door. Accordingly, the indoor light is turned on or off while the door switch is pushed inward or restored to the original state by the door when the door is opened or closed.

However, in the conventional refrigerator equipped with the door switch, when the refrigerator door is closed with a predetermined force or less, the refrigerator door is not completely closed and cold air flows out, and the door switch is maintained in an off state. There is a problem that unnecessary power loss due to the lighting of the indoor light is caused by this.

In addition, in order to solve such a problem, when the user closes the refrigerator door with more force than necessary, a safety accident is concerned when a user's finger is caught between the door and the refrigerator main body due to carelessness.

Therefore, the present invention has been made to solve the above problems, the object of the present invention, when closing the refrigerator door initially acts as a repulsive force between the main body and the door to close the door slowly, and at a certain time and In position, the attraction force is such that the door does not open and closes completely.

In order to achieve the above object, a door control apparatus for a refrigerator according to the present invention includes: a door switch mounted on the refrigerator main body and switched on / off depending on whether the refrigerator door is opened or closed to turn off or turn on an indoor light; A door safety switch mounted on the refrigerator main body and performing an on / off operation according to whether the refrigerator door is opened or closed; An electromagnet mounted on the refrigerator main body, the power being selectively applied by the door safety switch according to whether the refrigerator door is opened or closed, and the polarity being selectively converted; A permanent magnet mounted to the refrigerator door and generating magnetic force with the electromagnet; And a motor control device mounted on a rotation shaft of the refrigerator door to control a rotation direction, a rotation angle, and a rotation speed of the refrigerator door, wherein the electromagnet has a predetermined time elapsed while the refrigerator door is not completely closed, When the rotation angle of the refrigerator door exceeds the set angle, the polarity is configured to convert from the repulsive force to the attraction force.

The door control method for a refrigerator according to the present invention includes determining whether the door safety switch is operated according to whether the refrigerator door is opened or closed; When the door safety switch is operated, it is determined whether power is supplied to the electromagnet, and when the refrigerator door is open, the power is applied to the electromagnet located in the refrigerator body by the door safety switch, and the refrigerator corresponding to the electromagnet is operated. Repulsive force is applied between the permanent magnet and the electromagnet mounted on the door; Determining whether the setting time has elapsed for the closing time when the refrigerator door is not completely closed or determining whether the setting angle has been exceeded with respect to the rotation angle of the refrigerator door; And converting the polarity of the electromagnet into the attraction force by the door safety switch when the set time has elapsed.

When the refrigerator door is completely closed and the door switch is operated, the door safety switch is turned off, and power is not applied to the electromagnet.

As described above, according to the door control apparatus and the door control method for a refrigerator according to the present invention, when the door safety switch at the beginning of closing the refrigerator door is operated so that the repulsive force acts between the door and the refrigerator main body to close the door closing speed. In order to prevent the safety accident of the user to reduce, and in this state, if a certain time elapses, there is an effect that the personnel can act between the door and the refrigerator body to close the door easily with a small force.

1 is a schematic horizontal cross-sectional view showing a door control apparatus for a refrigerator according to the present invention.
2 is a flowchart showing an embodiment of a door control method for a refrigerator according to the present invention.
3 is a flowchart showing another embodiment of a door control method for a refrigerator according to the present invention.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic horizontal cross-sectional view showing a door control apparatus for a refrigerator according to the present invention, FIG. 2 is a flowchart showing a door control method for a refrigerator according to the present invention, and FIG. 3 is a door for a refrigerator according to the present invention. A flowchart showing another embodiment of the control method.

As shown in FIG. 1, the refrigerator according to the present invention is installed on the front surface of the main body 10 or the wall surface of the inside of the refrigerator, and is installed in a protruding form so as to contact the refrigerator door 20. The door switch 11 which controls an extinction is provided.

The door switch 11 is turned on / off while being pushed inward from the front or wall of the refrigerator main body 10 or restored to its original state depending on whether the refrigerator door 20 is opened or closed. Turns off or lights up.

In addition, the refrigerator according to the present invention, the door safety switch 12 is installed on the front surface of the refrigerator main body 10 equipped with the door switch 11 or the wall surface of the inside of the refrigerator, and installed in a position close to the door switch 11. More).

In addition, the refrigerator door 20 has a permanent magnet 21 for generating a magnetic force between the electromagnet 13, which will be described later, is disposed on the front surface of the refrigerator main body 10 or the wall surface of the inside of the refrigerator An electromagnet 13 for generating magnetic force when power is applied by the door safety switch 12 is disposed. Here, the mounting position of the permanent magnet 21 and the electromagnet 13 may be replaced with each other in a corresponding position, but the electromagnet 13 is located close to the door safety switch 12 for applying power Since the door safety switch 12 is preferably located on the front surface of the refrigerator body 10 or the wall in the interior of the refrigerator.

In addition, the motor control device 22 is provided on the rotation shaft of the refrigerator door 20 to control the rotation direction, the rotation angle and the rotation speed of the refrigerator door 20. Here, the motor controller 22 is a step motor that rotates at a predetermined angle or at a predetermined speed in a predetermined direction corresponding to the number of input pulses, and the rotation is performed because the number of input pulses is proportional to the rotation angle or speed of the motor. The angle or rotation speed can be precisely controlled.

On the other hand, unlike the door switch 11, the door safety switch 12 is turned on / off by a control device (not shown) that determines whether power is supplied to the electromagnet 13 according to whether the refrigerator door 20 is opened or closed. OFF operation is performed. That is, while supplying power to the electromagnet 13 while the refrigerator door 20 is open, the polarity is changed so that repulsive force or attraction force can act between the electromagnet 13 and the permanent magnet 21.

In other words, the door safety switch 12 in the state in which the door 20 of the refrigerator is open applies power to the electromagnet 13 to have the same polarity as the permanent magnet 21 provided in the corresponding refrigerator door 20. Or reverse the polarity to force repulsion or attraction between the two magnets.

As shown in FIG. 2, the door safety switch 12 applies power to the electromagnet 13 when the refrigerator door 20 is opened and is closed by the user. By the same polarity of the permanent magnet 21 mounted on the refrigerator door 20 so that the repulsive force acts between the permanent magnet 21 and the electromagnet 13.

When the repulsive force acts between the permanent magnet 21 and the electromagnet 13 as described above, the door reaches the predetermined position, that is, the moment the magnetic force acts between the permanent magnet 21 and the electromagnet 13. Since the closing speed of 20 is closed slowly, safety accidents such as finger pinching accidents caused by carelessness can be prevented.

When the refrigerator door 20 is closed, the repulsive force acts between the permanent magnet 21 and the electromagnet 13, and then the door safety switch when a predetermined time elapses while the door 20 is not completely closed. 12 converts the polarity of the electromagnet 13 to the opposite of the polarity of the permanent magnet 21 mounted on the refrigerator door 20 so that an attractive force acts between the permanent magnet 21 and the electromagnet 13.

As such, when the attraction force acts between the permanent magnet 21 and the electromagnet 13, the door 20 is quickly closed as the closing speed of the refrigerator door 20 increases, so that the door 20 can be easily removed with a small force. Can be closed.

In a preferred embodiment according to the present invention, the point of time when the repulsive force acting between the permanent magnet 21 and the electromagnet 13 to the attraction force is when the refrigerator door 20 starts a closing operation time While the refrigerator door 20 is not completely closed, it may be determined that the refrigerator door 20 is rotated more than the position of the initial refrigerator door 20 and is in the almost closed state. This can be set in an appropriate time range by the controller.

Accordingly, when the refrigerator door 20 reaches the almost closed state, the attraction force acts between the two magnets so that the refrigerator door 20 can be easily closed.

When the refrigerator door 20 is completely closed, the door switch 11 mounted on the main body 10 corresponding to the refrigerator door 20 is pushed to the inside of the main body 10 so that the interior lamp of the inside of the refrigerator is turned off. Since the door safety switch 12 is turned off, power is not applied to the electromagnet 13. Here, while the door switch 11 is operated to turn off the lights in the interior of the room, the door safety switch 12 may be continuously operated to supply power to the electromagnet 13, but this may increase power consumption. Not.

The closing operation of the refrigerator door 20 is a power supply for the electromagnet 13 of the door safety switch 12 by accurately determining the rotation speed and the rotation direction of the refrigerator door 20 through the motor control device 22. Naturally, it is possible to control the application time and the magnetic conversion time.

On the other hand, as shown in Figure 3, according to another embodiment of the present invention, the control device is a refrigerator door 20 when the repulsive force acting between the permanent magnet 21 and the electromagnet 13 is converted to the attraction force The rotation angle of the main body 10 may be set to a time when the predetermined angle or less enters. Here, the control device can set the appropriate rotation angle range.

This can accurately control the rotation angle of the refrigerator door 20 through the motor control device 22, when the rotation angle of the refrigerator door 20 exceeds the set angle and the permanent magnet 21 and Preferably, the refrigerating force acting between the electromagnets 13 is converted into attraction force so that the refrigerator door 20 is completely closed.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the general knowledge in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Anyone with a variety of modifications can be made, as well as such changes are within the scope of the claims.

10: main body 11: door switch
12: door safety switch 13: electromagnet
20: door 21: permanent magnet
22: motor control device

Claims (3)

A door switch mounted on the refrigerator main body and switched on / off depending on whether the refrigerator door is opened or closed to turn off or turn on an indoor light;
A door safety switch mounted on the refrigerator main body and performing an on / off operation according to whether the refrigerator door is opened or closed;
An electromagnet mounted on the refrigerator main body, the power being selectively applied by the door safety switch according to whether the refrigerator door is opened or closed, and the polarity being selectively converted;
A permanent magnet mounted to the refrigerator door and generating magnetic force with the electromagnet; And
Is mounted on the rotation axis of the refrigerator door, and includes a motor control device for controlling the rotation direction, rotation angle and rotation speed of the refrigerator door,
The electromagnet is a refrigerator door control, characterized in that the polarity is converted from the repulsive force to the attraction force when a certain time elapses in the state that the refrigerator door is not completely closed, or when the rotation angle of the refrigerator door exceeds a set angle Device.
Determining whether the door safety switch is operated according to whether the refrigerator door is opened or closed;
When the door safety switch is operated, it is determined whether power is supplied to the electromagnet, and when the refrigerator door is open, the power is applied to the electromagnet located in the refrigerator main body by the door safety switch, and the refrigerator corresponding to the electromagnet is operated. Repulsive force is applied between the permanent magnet and the electromagnet mounted on the door;
Determining whether the setting time has elapsed for the closing time when the refrigerator door is not completely closed or determining whether the setting angle has been exceeded with respect to the rotation angle of the refrigerator door; And
And converting the polarity of the electromagnet into the attraction force by the door safety switch when the set time has elapsed.
The method of claim 2,
The door safety switch is turned off when the refrigerator door is completely closed and the door switch is operated, and power is not applied to the electromagnet.
KR1020100057356A 2010-06-17 2010-06-17 Apparatus and method for controlling of door for refrigerator KR20110137425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100057356A KR20110137425A (en) 2010-06-17 2010-06-17 Apparatus and method for controlling of door for refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100057356A KR20110137425A (en) 2010-06-17 2010-06-17 Apparatus and method for controlling of door for refrigerator

Publications (1)

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KR20110137425A true KR20110137425A (en) 2011-12-23

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KR1020100057356A KR20110137425A (en) 2010-06-17 2010-06-17 Apparatus and method for controlling of door for refrigerator

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106837046A (en) * 2016-12-27 2017-06-13 青岛海尔特种电冰柜有限公司 Electromagnetic type amortization door closer, refrigeration plant and door body method of controlling switch
CN108955078A (en) * 2018-08-21 2018-12-07 长虹美菱股份有限公司 A kind of domestic refrigerator is switched with TMR
CN112797714A (en) * 2021-01-13 2021-05-14 珠海格力电器股份有限公司 Door body control method, device and system and refrigerator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106837046A (en) * 2016-12-27 2017-06-13 青岛海尔特种电冰柜有限公司 Electromagnetic type amortization door closer, refrigeration plant and door body method of controlling switch
CN108955078A (en) * 2018-08-21 2018-12-07 长虹美菱股份有限公司 A kind of domestic refrigerator is switched with TMR
CN108955078B (en) * 2018-08-21 2023-11-28 长虹美菱股份有限公司 TMR switch for household refrigerator
CN112797714A (en) * 2021-01-13 2021-05-14 珠海格力电器股份有限公司 Door body control method, device and system and refrigerator

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