KR20170046831A - Elevating System Of Kim-Chi Storage Case and Control Method thereof - Google Patents

Elevating System Of Kim-Chi Storage Case and Control Method thereof Download PDF

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KR20170046831A
KR20170046831A KR1020150146442A KR20150146442A KR20170046831A KR 20170046831 A KR20170046831 A KR 20170046831A KR 1020150146442 A KR1020150146442 A KR 1020150146442A KR 20150146442 A KR20150146442 A KR 20150146442A KR 20170046831 A KR20170046831 A KR 20170046831A
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South Korea
Prior art keywords
storage
container
unit
weight
support plate
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KR1020150146442A
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Korean (ko)
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서성일
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호남대학교 산학협력단
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Priority to KR1020150146442A priority Critical patent/KR20170046831A/en
Publication of KR20170046831A publication Critical patent/KR20170046831A/en

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/10—Preserving with acids; Acid fermentation
    • A23B7/105—Leaf vegetables, e.g. sauerkraut
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/10—Preserving with acids; Acid fermentation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D23/026—Doors; Covers for open-top cabinets
    • 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
    • F25D29/005—Mounting of control devices
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/04—Sensors detecting the presence of a person

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

The present invention provides a system for elevating a storage container of a kimchi refrigerator and a control method thereof. The system for elevating a storage container of a kimchi refrigerator comprises: a main body which is opened and closed by a door joined to an upper side and has a storage chamber for accommodating a storage container and a machine chamber for cooling the storage chamber; a container support plate which is arranged in the storage chamber and supports the inserted storage container; a first elevation unit which is arranged under the container support plate in the storage chamber and raises up and places down the container support plate; a second elevation unit which is arranged on both side walls of the storage chamber and raises up and places down the container support plate; a weight measurement unit which is arranged on the container support plate and measures, in real time, weight of the storage container placed on the container support plate when the door is opened; sensing units which are arranged on both side walls of an upper end portion of the storage chamber and senses users hands; and a control unit which receives transmission of measured weight of the storage container from the weight measurement unit when receiving a user hand sensing signal from the sensing unit, compares the measured weight to a predetermined reference value, and controls driving of at least one of the first elevation unit and the second elevation unit in accordance with a comparison result. According to the present invention, the storage container located in a lower side of the storage chamber can be withdrawn in an easy manner by elevating the container support plate supporting the storage container by a signal of sensing users hands inserted in the storage chamber. As hybrid-type operation is performed in accordance with weight of the storage chamber, unnecessary consumption of electric energy is prevented, and maintenance costs can be reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a kimchi refrigerator,

The present invention relates to a storage vessel lifting system and a control method for a kimchi refrigerator, and more particularly, to a storage vessel lifting system and a control method for a kimchi refrigerator which are operated in a hybrid manner according to the weight of a storage vessel, The present invention relates to a storage vessel lifting system and a control method of a kimchi refrigerator capable of saving energy.

Generally, a kimchi refrigerator is a refrigerator designed for the purpose of matured kimchi and keep it fresh by utilizing the basic principle of a refrigerator.

Since Kimchi refrigerator is the most important element to keep Kimchi fresh by interrupting cold air and keeping it at a constant temperature, upwardly opening and closing type Kimchi refrigerator configured to minimize the outflow of cold air is most preferred.

The upward opening and closing type Kimchi refrigerator includes a main body including a storage chamber for storing the storage container and a machine room formed for properly cooling the temperature of the storage chamber, and a door coupled to an upper portion of the main body to open and close the storage chamber.

The upward and downward type Kimchi refrigerator is enlarged in order to secure a storage space of the storage room, so that the width and depth of the storage room are widened and the storage container accommodated in the storage room is also becoming larger. Accordingly, there is a problem that the user can not lift the heavy storage container housed in the lower part of the wider storage room directly.

More specifically, the storage containers containing food or kimchi are stacked in two or three stages above the container under the storage compartment. At this time, the upper storage container can be easily taken out by the user, but the storage container placed on the lower side should be pulled up by lifting the lower storage container by holding the waist down and putting the hand into the storage room deep enough to hold the handle of the lower storage container. And when the storage container is heavy, there is a problem that it is difficult for the elderly person or pregnant woman to take out the storage container.

In recent years, a storage container taking-out apparatus has been proposed in which a drive part and an elevating member are installed at the lower part of a storage room to vertically move the storage container up and down so that the user can easily draw the storage container out of the storage room without applying force .

However, since the conventional storage container withdrawing device pushes up the storage container with a certain force irrespective of the weight of the storage container, when the contents in the storage container are light, the storage container is strongly raised or a constant force is provided even in the lightness of the container If the contents in the storage container is heavy, the force to push up the storage container is weak, or a load is applied to the driving part, which shortens the service life of the driving part.

Korean Registered Patent: 10 - 0479878 (Published on Mar. 31, 2005)

Korean Registered Patent: 10 - 0541402 (Notification Date 2006. 01. 10)

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems,

An object of the present invention is to provide a storage container lifting and lowering system for a kimchi refrigerator which real-time measures the weight of a storage container placed on a container support plate when a door of the kimchi refrigerator is opened and lifts the storage container by a user's hand- And to provide a control method.

Another object of the present invention is to provide a kimchi refrigerator which comprises a first elevation unit provided at a lower end of a storage compartment of a kimchi refrigerator for lifting and lowering a container support plate for supporting a storage container, The first elevation unit and the second elevation unit are selectively driven according to the weight of the storage container measured after the user's hand detection signal or the first elevation unit and the second elevation unit are simultaneously driven, The present invention is to provide a storage vessel lifting system and a control method of a Kimchi refrigerator which can stabilize lifting according to the weight and prevent unnecessary energy consumption from being consumed, thereby saving management and maintenance costs.

According to an aspect of the present invention, there is provided a storage vessel lifting / lowering system for a kimchi refrigerator, comprising: a storage chamber that is opened and closed by a door coupled to an upper surface and accommodates a storage vessel; ; A container support plate disposed in the storage chamber and supporting the storage container; A first elevating unit provided at the lower portion of the container supporting plate in the storage chamber to move up and down the container supporting plate; A second lifting unit provided on both side walls of the storage chamber for lifting and lowering the container support plate; A weight measuring unit provided on the container support plate for real-time measuring the weight of the container placed on the container support plate when the door is opened; A sensing unit provided on both side walls of the upper end of the storage room to sense a user's hand; And a control unit for receiving a user's hand sensing signal from the sensing unit to receive a measured weight of the storage container from the weighing unit and comparing the measured weight with a preset reference value, and controlling at least one of the first and second lifting units And a control unit for controlling the control unit.

And the sensing unit transmits and receives an optical signal when the weight of the storage container measured by the weight measuring unit is less than a predetermined weight of the weight measured at the time of opening the door to sense the user's hand.

The sensing unit may include a light emitting element for outputting an optical signal and a light receiving element for receiving an optical signal output from the light emitting element. When the output light signal of the light emitting element is not received, Is applied.

And the controller controls the driving of the first and second lifting units at the same time when the weight of the storage container measured as a result of the comparison is greater than a predetermined reference value.

The control unit may control the driving of any one of the first lift unit and the second lift unit when the weight of the storage container measured as a result of the comparison is equal to or smaller than a predetermined reference value.

The first elevating unit includes a base plate for supporting the container support plate, a first end portion coupled to a bottom surface of the storage chamber of the main body, and a second end coupled to the bottom surface of the base plate and vertically moving the base plate through vertical movement of the piston rod And a cylinder portion.

The storage space of the main body is divided into an upper space for accommodating the storage container and a lower space for seating the cylinder.

In addition, the machine room is located at the lower part of the storage room, and the lower space of the storage room is drawn into the machine room to secure the installation space of the cylinder part.

The second lift unit includes a rack provided on both side walls of the storage chamber in a longitudinal direction, a pinion rotatably coupled to both sides of the container support plate to engage with the rack, and a driving unit for driving the pinion .

A method of controlling a lifting / lowering system of a Kimchi refrigerator according to the present invention comprises the steps of: measuring a weight of a storage container on which a signal is applied when a door of a storage room is opened; Sensing a user's hand entering the storage room; If the user's hand is sensed, comparing the measured weight of the storage container with a preset reference value; And a step S40 of applying a driving signal to at least one of the first elevating unit and the second elevating unit to elevate the container supporting plate according to the comparison result.

Here, the step S20 may transmit or receive an optical signal when the weight is less than a predetermined weight that is initially measured when the door is opened, thereby sensing a user's hand.

If it is determined in step S30 that the measured weight of the storage container is greater than a preset reference value, a driving signal is applied to both the first lift unit and the second lift unit to elevate the container support plate. If the measured weight of the storage container is equal to or smaller than a preset reference value, a driving signal is applied to any one of the first and second lifting units to elevate the container supporting plate.

When the first lift unit receives the drive signal in step S30, the cylinder unit is driven to vertically move the piston rod. The vertical movement of the piston rod pushes up the base plate coupled to the piston rod to lift the container base plate .

In addition, in step S30, when the second lift unit receives the drive signal, it drives the driving unit to rotate the pinion rotatably coupled to the side surface of the container support plate, and the rotated pinion moves along the rack provided on the side wall of the storage room So that the container support plate is moved up and down.

According to the embodiment of the present invention, the container support plate supporting the storage container is moved up and down by the hand sensing signal of the user entering into the storage compartment, so that the storage space located below the storage compartment The container can be easily taken out.

In addition, when the door of the Kimchi refrigerator is opened, the weight of the storage container placed on the container support plate is measured in real time, and the first and second lift units are selectively driven according to the measured weight of the storage container, It is possible to extend the service life of the first and second lifting units by not driving the first and second lifting and lowering units by driving the second lifting and lowering units simultaneously.

Further, since the hybrid type driving is performed in accordance with the weight of the storage container, it is possible to prevent unnecessary electric energy from being consumed and to reduce maintenance and maintenance costs.

In addition, the stable operation of the first and second lifting units enables stable retrieval and entry of the storage container.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an outer shape of a Kimchi refrigerator according to an embodiment of the present invention; FIG.
FIG. 2 is a sectional view showing a lifting system of a Kimchi refrigerator according to an embodiment of the present invention; FIG.
FIG. 3 is an enlarged perspective view illustrating a configuration of first and second lifting units in a storage vessel lifting / lowering system of Kimchi Django according to an embodiment of the present invention.
FIG. 4 is a block diagram showing an overall configuration of a storage vessel lifting system of a Kimchi refrigerator according to an embodiment of the present invention; FIG.
5 (a), 5 (b) and 5 (c) are enlarged sectional views for explaining the operation relationship between the weight measuring unit, the sensing unit, and the lift unit in the storage vessel lifting system of the Kimchi refrigerator according to the embodiment of the present invention .
6 and 7 are views for explaining a lifting operation of the storage vessel lifting system of the Kimchi refrigerator according to the embodiment of the present invention.
8 is a flowchart illustrating a method of controlling a storage vessel lifting / lowering system of a Kimchi refrigerator according to an embodiment of the present invention.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a storage vessel lifting system and a control method of a Kimchi refrigerator according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. For purposes of this specification, like reference numerals in the drawings denote like elements unless otherwise indicated.

FIG. 1 is a perspective view showing the outline of a Kimchi refrigerator according to an embodiment of the present invention, FIG. 2 is a sectional view showing a storage vessel lifting system of a Kimchi refrigerator according to an embodiment of the present invention, Fig. 4 is an enlarged perspective view illustrating the construction of the first and second lifting units in the storage vessel lifting system of the Kimchi Django according to the embodiment of the present invention. Fig. And Fig.

1 to 4, a storage vessel lifting / lowering system of a Kimchi refrigerator according to an embodiment of the present invention includes a storage room for storing a storage container and a machine room for cooling the storage room A first lift unit 300 provided at a lower portion of the container support plate in the storage chamber to move up and down the container support plate; A weight measuring unit 500 provided on the container support plate for measuring the weight of the container placed on the container support plate when the door is opened, A sensing unit 600 provided on both side walls of the upper portion of the storage chamber for sensing the user's hand, Comparison with a reference value predetermined to receive the transmission, and the result of the comparison is configured to include a first lift unit and the second lifting unit at least one control unit 700 that controls driving of the in accordance with the.

1 and 2, the main body 100 is provided at a lower portion of the storage chamber 110 and a storage chamber 110 in which the upper surface is opened to receive the storage container B to store the temperature of the storage chamber 110 And a machine room 120 formed for proper cooling. A door 130 for opening and closing the storage compartment 110 is coupled to the upper surface of the main body 100.

The storage room 110 of the main body can be divided into an upper space 111 for accommodating the storage container and a lower space 112 for accommodating the first lift unit. At this time, the lower space 112 may be formed to have a narrower space than the upper space so as to communicate with the upper space 111 but only the first lifting unit 300 is seated. In addition, the lower space 112 of the storage compartment may be provided in the machine room 120 so that the upper space 111 is maximally secured.

The container support plate 200 is disposed horizontally in the upper space 111 of the storage compartment to support the storage container B which is drawn into the storage compartment upper space 111. At this time, the storage container B placed on the container support plate 200 may be stacked in two or three stages.

As shown in FIGS. 2 and 3, a first lifting unit 300 for lifting and lowering the container support plate 200 is provided below the container support plate 200.

The first elevating unit 300 includes a base plate 310 for supporting the container support plate 200 and a piston rod 321 having one end coupled to the bottom surface of the storage chamber 110 and the other end coupled to the bottom surface of the base plate 310, And a cylinder part 320 for moving up and down the base plate 310 through vertical movement of the base plate 310.

The cylinder portion 320 is located in the lower space 112 of the storage chamber and the base plate 310 coupled with the piston rod 321 of the cylinder portion is positioned in the upper space 111 to support the container support plate 200 . At this time, the lower space may be provided with a pump for providing hydraulic or pneumatic pressure to the cylinder portion.

A second lift unit 400 is provided on both side walls of the upper space 111 of the storage compartment.

The second elevating unit 400 includes a rack 410 provided on both side walls of the upper space 111 of the storage room in the longitudinal direction and a rack 410 rotatably coupled to both side portions or bottom portions of the container supporting plate 200, And a driving unit 430 for driving the pinion 420. The driving unit 430 includes a driving unit 430,

Here, the container support plate 200 is provided with a fixing piece 210 that extends outward from the rim of both side portions so as to fix the pinion and the driving portion of the second lift unit. A pinion shaft 421 is rotatably coupled to the fixing piece 210 of the container support plate in a direction perpendicular to the rack longitudinal direction and a driving unit 430 coupled to the pinion shaft 421 is mounted.

That is, the pinion 420 and the driving unit 430 are mounted on the fixing piece 210 formed on both side portions of the container supporting plate 200 and the rack 410, which is engaged with the pinion 420 when the driving unit 430 is driven, So that the container support plate 200 is lifted and lowered.

The upper surface of the container support plate 200 is provided with a weight measuring unit 500 for measuring the weight of the storage container B placed on the container support plate 200.

Here, the weight measuring unit 500 may include a pressure sensor for measuring the weight of the storage container B, and a signal is applied when the door 130 is opened to measure the weight of the storage container B in real time.

The weight measuring unit 500 is electrically connected to the control unit 700 and transmits the measured weight of the storage container B to the control unit 700 in real time.

The control unit 700 receives the weight measured in real time from the weight measuring unit 500. When the weight of the sensing unit 600 is lower than a predetermined weight of the storage container when the door 130 is opened, And outputs a signal.

The sensing unit 600 includes a light emitting element 610 and a light receiving element 620. The light emitting element 610 and the light receiving element 620 are provided on both sides of the upper end of the storage chamber to output an optical signal.

That is, when the sensing signal is applied from the control unit 700, the sensing unit 600 receives the optical signal output from the light emitting device 610 by the light receiving device 620. When the light receiving signal is not received by the output optical signal, And transmits a detection signal to the control unit 700. [0050] FIG.

Here, the storage container B of the storage chamber 110 may be stacked on the container support plate 200 in two or three stages. If the optical signal is output from the light emitting device 610 of the sensing unit in a state where the storage container is stacked on the container support plate 200 in two or three stages, it becomes difficult to detect the user's hand by the storage container on the upper side.

The first weight measured by the weighing part 500 when the door B is opened is a weight in which the storage container is stacked in two or three stages so that the control part 700 can reduce the weight The storage container on the upper side is taken out, and it is determined that the storage container is removed, and a sensing signal is output to the sensing unit 600. However, if there is no change in the weight of the storage container transferred from the weighing unit 500, it is determined that the storage container B on the upper side is not taken out, and no signal is applied to the sensing unit 600.

That is, when a sensing signal is applied from the controller 700, the sensing unit 600 transmits and receives an optical signal to sense a user's hand entering the storage room.

The control unit 700 receiving the user's hand sensing signal from the sensing unit 600 receives the weight of the storage container measured in real time from the weight measuring unit 500 and compares it with a predetermined reference value.

Then, either one of the selected one of the first elevating unit 300 and the second elevating unit 400 is controlled according to the result of the comparison, or the selected one of the first elevating unit 300 and the second elevating unit 400 And controls the driving.

That is, when the weight of the storage container measured as a result of the comparison is greater than a preset reference value, the controller 700 simultaneously controls the driving of the first and second lifting units 300 and 400, When the weight of the container is equal to or smaller than a preset reference value, the control unit controls the driving of any one of the first elevating unit 300 and the second elevating unit 400.

The operation and control method of the storage vessel lifting / lowering system of the Kimchi refrigerator constructed as above will be described as follows.

5 (a), 5 (b) and 5 (c) are enlarged sectional views for explaining the operation relationship between the weight measuring unit, the sensing unit, and the lift unit in the storage vessel lifting system of the Kimchi refrigerator according to the embodiment of the present invention 6 and 7 are operation views for explaining a lifting operation of the storage vessel lifting system of the Kimchi refrigerator according to the embodiment of the present invention, Fig. 3 is a flowchart showing a method of controlling an elevating system. Fig.

First, as shown in FIG. 5 (a), the Kimchi refrigerator storage room 110 is stored with two or three stages of storage containers B in which food or Kimchi are stored.

When the door 130 of the kimchi refrigerator is opened to open the storage chamber 110, a signal is applied to the weight measuring unit 500 provided on the container support plate 200. The weight measuring unit 500 receives the signal, 200) of the storage container (B) is measured in real time and transmitted to the controller (700). At this time, the weight transferred to the control unit 700 is measured and transmitted to the total weight of the storage containers stacked in two or three stages (Step S10)

5 (b), when the user wants to take out the storage container on the lower side, the user takes out the storage container on the upper side first. The user can pull out the storage container by pulling the handle of the storage container, so that the storage container can be drawn out without a great deal of force. At this time, the weight of the storage container measured in real time in the weight measuring part 500 is measured before the upper storage container is taken out, that is, the weight reduced to less than a predetermined weight than the weight measured first when the door is opened, do.

Then, the control unit 700, which has received the weight reduced by a certain amount less than the weight of the storage container measured from the weight measuring unit 500, determines that the storage container on the upper side is drawn out and removed, And outputs a sensing signal.

The sensing unit 600 receiving the sensing signal from the control unit 700 outputs the optical signal from the light emitting device 610 and receives the optical signal output from the light receiving device 620 to transmit the user's hand Detection. That is, when the light receiving signal is not received, the user recognizes that the user's hand is sensed and transmits a detection signal to the controller 700. In operation S20,

The controller 700 receives the sensing signal from the sensing unit 600 and compares the weight of the storage container measured in real time with the predetermined reference value from the weight measuring unit 500. In operation S30,

As shown in FIG. 5 (c), the driving of at least one of the first elevating unit and the second elevating unit is controlled to elevate and lower the container supporting plate 200 according to the comparison result.

6, when the weight of the storage container B measured as a result of the comparison by the controller 700 is greater than a predetermined reference value, the first lift unit 300 and the second lift unit 400 And drives the first and second lifting units 300 and 400 simultaneously (S40 and S50)

The first lift unit 300 receives the drive signal from the controller 700 and vertically moves the piston rod 321 by driving the cylinder unit 320 to vertically move the piston rod 321, 310 are lifted up and the container support plate 200 is pushed upward.

At the same time, the second elevating unit 400 receiving the driving signal from the controller 700 rotates the pinion 420 by driving the driving unit 430, and the pinion 420, which is rotated, And moves up and down the container support plate 200 to which the pinion shaft 421 is coupled (step S70)

When the measured weight of the storage container mounted on the container support plate 200 is greater than a predetermined reference value, the first and second lifting units 300 and 400 are driven simultaneously to move the container support plate 200 up and down Accordingly, the first and second lifting units 300 and 400 are prevented from being damaged and the service life can be extended. Thus, the stable lifting of the storage container can be performed due to the stable operation of the first and second lifting units 300 and 400 .

If the weight of the storage container measured as a result of the comparison is equal to or smaller than a preset reference value, the controller 700 controls the selected one of the first lift unit 300 and the second lift unit 400 (Steps S40 and S60)

When the first elevating unit 300 is selected and driven, the first elevating unit 300 drives the cylinder 320 to vertically move the piston rod 321, and the vertical movement of the piston rod 321 The base plate 310 is lifted up and the container support plate 200 is pushed upward. At this time, since the drive signal is not applied to the second lift unit 400, the drive unit of the second lift unit is not driven and the pinion 420 idles by the force of the upward movement of the container support plate 200, 410) (refer to FIG. 6).

7, when the second lift unit 400 is selected and driven, the second lift unit 400 drives the drive unit 430 to rotate the pinion 420, 420 lifts up the container support plate 200 to which the pinion shaft 421 is coupled in the upward movement of the rack 410 which is engaged with the rack 410. In step S70, The first lift unit 300 is not driven because it is not applied.

Here, the container support plate 200 ascends and descends to the point where the handle of the storage container B positioned at the lower side is located at the entrance of the storage room. Therefore, the storage container on the lower side can be easily taken out without lowering the waist or putting the hand deep into the storage compartment.

A control panel unit 140 is provided on the front of the main body 100 to allow the user to select and control various functions of the Kimchi refrigerator. The control panel unit 140 is provided with a container And an off signal button 150 for lowering the base plate. That is, when the off signal button 150 is pressed, the first lift unit and the second lift unit, which have been lifted and lowered, are retracted and retracted to retract the storage container loaded on the container support plate into the storage chamber.

As described above, according to the present invention, the container support plate supporting the storage container is raised and lowered by the hand sensing signal of the user entering the storage compartment, so that the storage container located at the lower side of the storage compartment can be easily taken out .

In addition, when the door of the Kimchi refrigerator is opened, the weight of the storage container placed on the container support plate is measured in real time, and the first and second lift units are selectively driven according to the measured weight of the storage container, It is possible to extend the service life of the first and second lifting units by not driving the first and second lifting and lowering units at the same time by simultaneously driving the second lifting and lowering units.

In addition, since hybrid type driving is performed according to the weight of the storage container, it is possible to prevent unnecessary electric energy from being consumed and to reduce the maintenance cost.

In addition, stable operation of the first and second lifting and lowering units enables stable retrieval and entry of the storage container.

In the present invention, one elevator system is operated in one storage room. However, as shown in FIGS. 1 and 2, a plurality of storage rooms of the main body may be formed in accordance with products, The lift system can be operated individually. Also, when the storage containers are stacked on both left and right sides in one storage room, the elevator system may be applied to both the left and right sides, so that the lower storage containers stacked on both sides of the storage room can be independently lifted and lowered.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims, And equivalents may be resorted to as falling within the scope of the invention.

100: main body 110: storage room
111: upper space 112: lower space
120: machine room 130: door
140: control panel section 150: input section
200: container holding plate 210:
300: first elevating unit 310: base plate
320: Cylinder part 321: Piston rod
400: second lift unit 410: rack
420: Pinion 421: Pinion shaft
430: driving part 500: weight measuring part
600: sensing unit 610: light emitting element
620: Light receiving element
700:

Claims (15)

A body which is opened and closed by a door coupled to an upper surface and in which a storage room for storing the storage container and a machine room for cooling the storage room are formed;
A container support plate disposed in the storage chamber and supporting the storage container;
A first elevating unit provided at the lower portion of the container supporting plate in the storage chamber to move up and down the container supporting plate;
A second lifting unit provided on both side walls of the storage chamber for lifting and lowering the container support plate;
A weight measuring unit provided on the container support plate for real-time measuring the weight of the container placed on the container support plate when the door is opened;
A sensing unit provided on both side walls of the upper end of the storage room to sense a user's hand; And
Wherein the control unit receives the user's hand sensing signal from the sensing unit, receives the measured weight of the storage container from the weight measuring unit, compares the measured weight with a preset reference value, and drives at least one of the first and second lift units, A control unit for controlling the control unit;
And a storage container lifting / lowering system of the Kimchi refrigerator. The method according to claim 1,
Wherein the sensing unit senses a user's hand by transmitting and receiving an optical signal when the weight of the storage container measured by the weight measuring unit is less than a predetermined weight of the weight measured when the door is opened. 3. The method of claim 2,
Wherein the sensing unit includes a light emitting element for outputting an optical signal and a light receiving element for receiving an optical signal output from the light emitting element, wherein the sensing signal is applied to the control unit when the light receiving signal is not received by the output optical signal of the light emitting element And the storage container lifting / lowering system of the Kimchi refrigerator. The method according to claim 1,
Wherein the control unit simultaneously controls the driving of the first elevating unit and the second elevating unit when the weight of the storage container measured as a result of comparison is greater than a preset reference value. The method according to claim 1,
Wherein the control unit controls the driving of any one of the first lift unit and the second lift unit when the weight of the storage container measured as a result of the comparison is equal to or smaller than a predetermined reference value. system. The method according to claim 1,
The first elevating unit includes a base plate for supporting the container support plate, a first end portion coupled to a bottom surface of the storage chamber of the main body, and a second end coupled to the bottom surface of the base plate and vertically moving the base plate through vertical movement of the piston rod And a cylinder part. The system for lifting and lowering the storage vessel of a Kimchi refrigerator according to claim 1, The method according to claim 6,
Wherein the storage room of the main body is divided into an upper space for accommodating the storage container and a lower space for seating the cylinder part. 8. The method of claim 7,
Wherein the machine room is located at a lower portion of the storage room and the lower space of the storage room is inserted into the machine room to secure a space for installing the cylinder portion. The method according to claim 1,
The second lift unit includes a rack provided on both side walls of the storage chamber in a longitudinal direction, a pinion rotatably coupled to both sides of the container support plate to engage with the rack, and a driving unit for driving the pinion And the storage container lifting / lowering system of the Kimchi refrigerator. A step S10 of measuring the weight of the storage container on which the signal is applied when the door of the storage compartment is opened;
Sensing a user's hand inserted into the storage room;
If the user's hand is sensed, comparing the measured weight of the storage container with a preset reference value; And
(S40) a step of raising and lowering the container support plate by applying a driving signal to at least one of the first lift unit and the second lift unit according to the comparison result;
And a control unit for controlling the temperature of the storage container. 11. The method of claim 10,
Wherein the step S 20 is a step of transmitting and receiving an optical signal when the weight of the storage container measured at step S 10 is measured to be less than a predetermined weight of the weight measured at the time of opening the door, A method of controlling a storage vessel lifting system of a refrigerator. 11. The method of claim 10,
Wherein, in the step S30, when the measured weight of the storage container is greater than a predetermined reference value, the control unit applies a driving signal to both the first and second lift units to elevate the container support plate. A method for controlling a storage vessel lifting system. 11. The method of claim 10,
If it is determined in step S30 that the measured weight of the storage container is equal to or less than a predetermined reference value, a driving signal is applied to any one of the first and second lifting units to raise and lower the container base plate A method of controlling a storage vessel lifting system of a kimchi refrigerator. 11. The method of claim 10,
In the step S30, when the first lift unit receives the drive signal, the cylinder unit is driven to vertically move the piston rod, and the vertical movement of the piston rod pushes up the base plate coupled to the piston rod to lift the container base plate A control method of a storage vessel lifting system of a kimchi refrigerator. 11. The method of claim 10,
In step S30, when the second lift unit receives the drive signal, the second lift unit rotates the pinion rotatably coupled to the side surface of the container support plate by driving the drive unit. The rotated pinion moves on the rack provided on the side wall of the storage chamber, And the container holding plate is lifted and lowered.
KR1020150146442A 2015-10-21 2015-10-21 Elevating System Of Kim-Chi Storage Case and Control Method thereof KR20170046831A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190112557A (en) * 2018-03-26 2019-10-07 엘지전자 주식회사 Refrigerator
KR20190142590A (en) * 2018-06-18 2019-12-27 엘지전자 주식회사 Refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190112557A (en) * 2018-03-26 2019-10-07 엘지전자 주식회사 Refrigerator
KR20190142590A (en) * 2018-06-18 2019-12-27 엘지전자 주식회사 Refrigerator

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