CN100344927C - Bottom drawer type refrigerator having basket lift device - Google Patents

Bottom drawer type refrigerator having basket lift device Download PDF

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Publication number
CN100344927C
CN100344927C CNB2005100781280A CN200510078128A CN100344927C CN 100344927 C CN100344927 C CN 100344927C CN B2005100781280 A CNB2005100781280 A CN B2005100781280A CN 200510078128 A CN200510078128 A CN 200510078128A CN 100344927 C CN100344927 C CN 100344927C
Authority
CN
China
Prior art keywords
refrigerator
lift frame
basket
drawer door
driving screw
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CNB2005100781280A
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Chinese (zh)
Other versions
CN1727825A (en
Inventor
吴承桓
郑敬翰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN1727825A publication Critical patent/CN1727825A/en
Application granted granted Critical
Publication of CN100344927C publication Critical patent/CN100344927C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/17—Drawers used in connection with household appliances
    • 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
    • F25D25/04—Charging, supporting, and discharging the articles to be cooled by conveyors

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)

Abstract

In a refrigerator which includes a main body (10) having a lower cooling chamber (18) disposed at a lower portion of the main body, a base frame (30) is disposed to be moved in inward/outward directions at a lower cooling chamber (18) and has a drawer door (22) at a front side thereof. A lift frame (36) is disposed above the base frame (30), on which a basket (20) is placed. A rotatable lead screw (40) is vertically disposed at a rear surface of the drawer door (22), and a lift unit is formed at front of the lift frame (36) for moving up and down along the lead screw (40). A driving unit (38) rotates the lead screw (40) clockwise or counterclockwise. When the basket (20) is drawn out, the basket can be lifted to allow the user to take a food item out of the basket without bending his/her back. Thus, users' convenience can be enhanced.

Description

Bottom drawer type refrigerator with basket lift apparatus
Technical field
The present invention relates to a kind of refrigerator with basket lift apparatus, especially relate to a kind of basket lift apparatus, this basket lift apparatus can facilitate for the user by the basket that draws that lifting is installed in lower body part.
Background technology
Fig. 1 is the perspective view of refrigerator, and how the basket that draws that Fig. 2 shows according to conventional art is contained in the cutaway view of the refrigerator bottom of refrigerator main body.
General bottom drawer type refrigerator comprises the main body 102 with open front side portion and spatial accommodation, the cold house, bottom 112 (for example refrigerating chamber) that is arranged in the cold house, top 106 on these main body 102 tops and is arranged in these main body 102 bottoms, its cold house, middle and upper part 106 has a pair of respectively at top (" method " formula side by side) door 104 of rolling to each side and opening, and is used to keep being stored in the low temperature of food wherein; And cold house, bottom 112 wherein isolates and has the drawer door 110 of outside slip by next door 108 and this cold house, top 106.
Machine Room 116 comprises compressor 114 and other parts that are used to produce the cooling air that offers cold house, top 106 and cold house, bottom 112, and this Machine Room 116 is arranged on main body 102 rear portions.
What be used for holding therein food draws basket 120 slide arrangement in cold house, bottom 112, and this drawer door 110 is fixed the front side that this draws basket 120 as drawer panel.Therefore, when this drawer door 110 was pulled outwardly, this drew basket 120 to open thus, and when this drawer door 110 advanced, this drew basket 120 to close thus.Guide rail 124 is installed in each respectively and draws between basket 120 outsides and 112 inboards, cold house, bottom, with draw basket 120 guide inwardly/outward direction slides.
Can be arranged on this to food preservation one or more drawers 126 therein and draw above the basket 120, so that sliding opening.
In the bottom drawer type refrigerator of this routine, the food in being kept at this cold house, bottom 112 needs to take out or food need put in this cold house, bottom 112 time, and this drawer door 110 is pulled outwardly, thereby this draws basket 120 slidably and open.Draw food in the basket 120 to take out or after this food put into this and draw basket 120, this drawer door 110 was inwardly pushed away being stored in this, thereby this draw basket 120 sliding closings.
Yet the problem that this routine bottom drawer type refrigerator exists is, because this draws the installation setting of basket too low, therefore the user must reduce the figure, that is to say, for example, the user must stoop the back or bow and bend over, and so that food is put into or taken out, causes user's inconvenience.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of bottom drawer type refrigerator with basket lift apparatus, when be arranged on the refrigerator main body bottom draw basket to pull out the time, thereby this basket lift apparatus draws basket will draw the position of basket to raise and can facilitate for the user by lifting.
In order to realize according to the present invention these and other advantage and according to the present invention, here do and specialize and briefly description, here a kind of bottom drawer refrigerator that provides, comprise: main body, have the bottom refrigerating chamber that at least one is arranged on this lower body part, be arranged in the inside and outside underframe that moves and have drawer door in its front side of bottom refrigerating chamber; Be arranged on the lift frame of drawer chassis top surface, on lift frame, can place and draw basket; Be vertically set on the driving screw of drawer door rear surface; Be arranged on the lift unit that lift frame side and the clockwise or counterclockwise rotation by driving screw move up and down along driving screw; With the driver element that is used for clockwise or is rotated counterclockwise driving screw.
First pilot unit that is used to guide lift frame to rise and descends is arranged between lift frame and the drawer door.First pilot unit comprises at least one vertical guide stem of the rear surface that is connected in drawer door; With at least one targeting part that is arranged on the lift frame rear surface, it holds guide rod, so that targeting part can vertically move along guide rod.
By below in conjunction with the accompanying drawing detailed description of the invention, aforementioned and other purpose, characteristics, aspect and advantage of the present invention will become more obvious.
Description of drawings
Accompanying drawing provides further to be understood of the present invention, incorporates and form the part of specification into.Embodiments of the invention shown in the accompanying drawing and be used for illustrating principle of the present invention with specification.
In the accompanying drawings:
Fig. 1 is the front perspective view according to the bottom drawer type refrigerator of conventional art;
Fig. 2 is the sectional view according to the bottom drawer type refrigerator bottom of conventional art;
Fig. 3 be according to the bottom drawer type refrigerator of first embodiment of the invention it draw basket to open the time front perspective view;
Fig. 4 is the side view that illustrates according to the refrigerator basket lift apparatus of first embodiment of the invention;
Fig. 5 is the rear view according to the refrigerator basket lift apparatus of first embodiment of the invention;
Fig. 6 is the vertical view according to the refrigerator basket lift apparatus of first embodiment of the invention;
Fig. 7 is the enlarged drawing of part ' A ' in Fig. 6;
Fig. 8 is the block diagram according to the refrigerator basket lift apparatus control module of first embodiment of the invention;
Fig. 9 shows the side view according to the refrigerator basket lift apparatus duty of first embodiment of the invention;
Figure 10 is the rear view according to the bottom drawer type refrigerator basket lift apparatus of second embodiment of the invention.
The specific embodiment
The bottom drawer type refrigerator that has basket lift apparatus according to the present invention is described referring now to accompanying drawing.
Though may have a plurality of embodiment, below most preferred embodiment will be described with refrigerator of basket lift apparatus.
Fig. 3 is the refrigerator front perspective view of opening according to having of first embodiment of the invention that draws basket, and Fig. 4 is the side view that illustrates according to the refrigerator basket lift apparatus of first embodiment of the invention.
The refrigerator that is provided with basket lift apparatus of the present invention comprises: the main body 10 with spatial accommodation; But upper refrigerator compartment 14 that is arranged on main body 10 tops and has top (for example ' the French ') swing door of opening a pair of both sides 12; The bottom refrigerating chamber 18 that is arranged on main body 10 downsides and separates by next door 16 and upper refrigerator compartment 14; Be arranged on bottom refrigerating chamber 18 and can inside/outward direction slide draw basket 20, be used for stored food; And when drawing basket 20 to pull out, be used to promote by the bottom refrigerating chamber draw basket 20 draw the basket lift unit.
Preferably, upper refrigerator compartment 14 is as the refrigerating chamber that is used to store chilled food, and bottom refrigerating chamber 18 is as the refrigerating chamber that is used to store frozen food.
Drawer door 22 is arranged on the front side of bottom refrigerating chamber 18, and when along main body 10 inwardly/outside when mobile, drawer door pushes or pulls out basket 20.A plurality of drawers 24 can spur aboutly, and operationally are arranged on the top of bottom refrigerating chamber 18, to keep food ice cube for example wherein.
Drawer door 22 is included in the handle 26 of its front side, and comprises one or more console switch 28a and 28b that are used to operate lift unit.In the drawer door inboard underframe 30 is housed, hand basket 20 is installed on it, and pair of guide rails 32 is installed between bottom refrigerating chamber 18 and the underframe 30, be used for main body 10 inwardly/outward direction on guiding underframe 30.
Each guide rail 32 comprises: the retaining rail 32a that is fixed in bottom refrigerating chamber 18 bottom surfaces; The middle rail 32b that is slidingly connected with retaining rail 32a; And be slidingly connected with middle rail 32b and be fixed in movable rail 32c below the underframe 30.
Fig. 5 is the rear view according to the refrigerator basket lift apparatus of first embodiment of the invention, and Fig. 6 is the vertical view according to the refrigerator basket lift apparatus of first embodiment of the invention.
Lift unit comprises: be arranged on the lift frame 36 of underframe 30 tops, and draw basket 20 to be placed on the lift frame; Be used for driving up and down the driver element 38 of lift frame 36; Guiding lift frame linearly moving pilot unit about in the of 36; And when drawing basket 20 to pull out, be used to control the control module that promotes the driver element 32 that draws basket 20.
Driver element 38 comprises: the rotatable driving screw 40 that vertically is installed on drawer door 22 rear surfaces; From the lift arm 42 that the vertical rising part of lift frame 36 front sides stretches out forward, itself and driving screw 40 engagements are so that move up and down when driving screw 40 rotations; Be connected in the drive motors 44 of driving screw 40 lower ends, it can clockwise or be rotated counterclockwise driving screw 40 when energising.
The upper end of driving screw 40 is rotatably mounted by the upper support bearing or the axle sleeve 46 that are fixed on drawer door 22 rear surfaces, and the lower end of driving screw 40 is rotatably mounted by the lower supporting bearing 48 that also is fixed on drawer door 22 rear surfaces.
Pilot unit comprises: at least one vertically is installed on the guide rod 50 of drawer door 22 rear surfaces; And at least one vertical rising part from lift frame 36 extends and holds the leading arm 52 that guide rod 50 runs through forward, so leading arm 52 can vertically move along guide rod.The rear surface of drawer door 22 is fixed at the two ends of guide rod 50 respectively by fixed support 54.
With reference to figure 7, pair of guide rails 56 vertical fixing are in the respective side of underframe 30, and corresponding guiding outstanding 58 is formed at the side of lift frame 36 and inserts guide rail 56, can linearly move in guide rail 56, so that further guide and support the vertical motion of lift frame 36.
With reference to figure 8, control module comprises: operated so that promote the switch 28a and the 28b of hand basket 20 by the user; First sensor 60 is installed in top, drawer door 22 rear surface, and the lift frame 36 of sensing when being positioned at the maximum lift position; Second sensor 62 is installed in bottom, drawer door 22 rear surface, and the lift frame 36 of sensing when being positioned at minimum down position; And controller 64, be used for opening and closing the power supply that is supplied in drive motors 44 according to signal from switch 28a and 28b, first sensor 60 and second sensor 62.
Switch 28a and 28b are installed on the front surface of drawer door 22.When wanting to promote lift frame 36, the user operates the first switch 28a.When wanting to reduce lift frame 36, the user operates second switch 28b.
Preferably, the first sensor 60 and second sensor 62 form limit switch or optical pickocff, are used for providing signal to controller 64 when upwards promoting or reducing lift frame 36.
The operation of the basket lift apparatus of above-mentioned structure is as follows.
Fig. 9 illustrates the bottom drawer type refrigerator basket lift apparatus duty according to first embodiment of the invention.
Draw basket 20 or when therefrom taking out, the user draws drawer door 22 along outward direction when the user wants food put into, extract out from bottom refrigerating chamber 28 will draw basket 20, and operation is installed on the first switch 28a of drawer door 22 front surfaces.Then, in controller 64, and controller 64 makes motor 44 energisings with along forwards driving drive motors 44 to (along promoting the direction of drawing basket) from the signal application of the first switch 28a.
Then, when driving screw 40 rotated according to the driving of drive motors 44, the lift arm 42 that meshes with driving screw 40 moved up along driving screw 40, thereby promoted lift frame 36.When lift frame 36 arrives peaks, first sensor 60 sense this situation and with corresponding signal application in controller 64, and controller 64 cuts off the power supply of drive motors 44.
Under such state, the user puts into food to draw in the basket 20 or from draw basket 20 and takes out food, operates second switch 28b then.Then, controller 64 is in opposite direction to drive motors 44 power supply, and driving drive motors 44 in opposite direction, so driving screw 40 is along opposite direction rotation, reducing lift arm 42, thereby reduces lift frame 36.
When lift frame 36 reduces fully, second sensor 62 sense this situation and with corresponding signal application in controller 64, and the power supply of controller sever supply drive motors 44.When the user rolls back drawer door 22, draw basket 20 to be contained in the bottom refrigerating chamber 18.
Figure 10 illustrates the perspective view according to the basket lift apparatus of the refrigerator of second embodiment of the invention.
Basket lift apparatus according to second embodiment of the invention has the polycrystalline substance identical with the basket lift apparatus of first embodiment, except driving screw 40 by manual operations.
At length, the top of driving screw 40 is formed with square or hexagonal driving projection 70, can insert instrument on it.Work as instrument, i.e. crank handle 72 is inserted into and drives on the projection 70 and during rotation, therefore driving screw 40 is rotated can promote or reduce lift frame 36.
As mentioned above, the refrigerator with this basket lift apparatus has many advantages.
In other words, for example, be provided for being arranged on the basket lift apparatus that draws basket of refrigerator bottom.Therefore, when drawing basket to be drawn out, draw basket can be raised to allow the user under not curved back of the body situation, from draw basket, to take out food.Therefore, increased user's convenience.
Because the present invention can implement under the situation that does not break away from spirit of the present invention or essential feature in many ways, it will also be appreciated that the above-mentioned specific embodiment is not limited by any details of aforementioned specification, unless it is dated especially, can very wide in range explanation in the defined spirit and scope of claims, therefore belong to the border of claim and the institute in the scope and change and revise, therefore the equivalent structure of perhaps this border and scope also is contained in the appended claim.

Claims (11)

1. bottom drawer type refrigerator comprises:
Main body has the bottom refrigerating chamber that at least one is arranged on this lower body part, is arranged in the underframe that the bottom refrigerating chamber moved in or out and had in its front side drawer door;
Be arranged on the lift frame of underframe top, draw basket to be placed on the lift frame;
Rotatably be vertically set on the driving screw of drawer door rear surface;
The lift arm that is arranged on the lift frame front and when driving screw rotates, moves up or down along driving screw;
Between lift frame and drawer door, form first pilot unit, so that the guiding lift frame vertically promotes, and
Be used for clockwise or be rotated counterclockwise the driver element of driving screw.
2. refrigerator as claimed in claim 1, mounting guide rail between underframe and following refrigerating chamber wherein is so that the guiding underframe slides to the inside or the outside of main body.
3. refrigerator as claimed in claim 1, wherein first pilot unit comprises:
Be connected at least one vertical guide stem of drawer door back; And
Be arranged at least one leading arm of lift frame front, it holds guide rod and runs through, so leading arm can vertically move along guide rod.
4. refrigerator as claimed in claim 1 wherein forms second pilot unit between lift frame and underframe, move up and down with the guiding lift frame.
5. refrigerator as claimed in claim 4, wherein second pilot unit comprises:
Be individually fixed in a pair of vertical guide rail of each side of underframe; And
Be formed at each side of lift frame and can linearly moving direction protrusion in corresponding guide rail.
6. refrigerator as claimed in claim 1, wherein driver element comprises the drive motors that is connected in the driving screw lower end, it can clockwise or be rotated counterclockwise driving screw when energising.
7. refrigerator as claimed in claim 1, wherein driver element comprises:
Be formed at the driving projection of driving screw upper end; And
Can be used for manually rotating the crank handle of driving screw with the driving protrusion engagement.
8. refrigerator as claimed in claim 1 further comprises:
When being drawn out, underframe is used for drawing the control module of basket lifting by the control of control driver element.
9. refrigerator as claimed in claim 8, wherein control module comprises:
Operate by the user and to promote and reduce the switching device that draws basket;
Be installed in drawer door rear surface upside and be used for the first sensor of the maximum lift state of sensing lift frame;
Be installed in drawer door rear surface downside and be used for second sensor of the minimum decline state of sensing lift frame; And
Be used for according to the controller of the signal that applies from switch and first and second sensor to the drive motors power supply.
10. refrigerator as claimed in claim 9, wherein switching device comprises: be installed in the drawer door front surface and be used to promote first switch of lift frame by user operation; And also be installed in the drawer door front surface and be used to reduce the second switch of lift frame by user operation.
11. refrigerator as claimed in claim 9, wherein the first sensor and second sensor are limit switch or optical pickocff.
CNB2005100781280A 2004-07-29 2005-06-13 Bottom drawer type refrigerator having basket lift device Expired - Fee Related CN100344927C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040059930 2004-07-29
KR1020040059930A KR100652583B1 (en) 2004-07-29 2004-07-29 Refrigerator having basket lift apparatus

Publications (2)

Publication Number Publication Date
CN1727825A CN1727825A (en) 2006-02-01
CN100344927C true CN100344927C (en) 2007-10-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2005100781280A Expired - Fee Related CN100344927C (en) 2004-07-29 2005-06-13 Bottom drawer type refrigerator having basket lift device

Country Status (6)

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US (1) US20060021373A1 (en)
EP (1) EP1621837B1 (en)
KR (1) KR100652583B1 (en)
CN (1) CN100344927C (en)
AU (1) AU2005201538B2 (en)
DE (1) DE602005005571T2 (en)

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US20060021373A1 (en) 2006-02-02
EP1621837B1 (en) 2008-03-26
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AU2005201538A1 (en) 2006-02-16
EP1621837A3 (en) 2006-07-26
DE602005005571T2 (en) 2008-07-03
KR20060011224A (en) 2006-02-03
AU2005201538B2 (en) 2006-11-09
KR100652583B1 (en) 2006-12-06
CN1727825A (en) 2006-02-01

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