WO2020181928A1 - 一种具有升降层架的冰箱 - Google Patents

一种具有升降层架的冰箱 Download PDF

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Publication number
WO2020181928A1
WO2020181928A1 PCT/CN2020/073350 CN2020073350W WO2020181928A1 WO 2020181928 A1 WO2020181928 A1 WO 2020181928A1 CN 2020073350 W CN2020073350 W CN 2020073350W WO 2020181928 A1 WO2020181928 A1 WO 2020181928A1
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WO
WIPO (PCT)
Prior art keywords
shelf
traction rope
lifting
refrigerator
lifting shelf
Prior art date
Application number
PCT/CN2020/073350
Other languages
English (en)
French (fr)
Inventor
王仁华
申乃雨
张建
陈红欣
李利云
郭子豪
朱建高
张树栋
Original Assignee
海信（山东）冰箱有限公司
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
Priority claimed from CN201910178912.0A external-priority patent/CN111692795B/zh
Priority claimed from CN201910178913.5A external-priority patent/CN111692796B/zh
Priority claimed from CN201920773270.4U external-priority patent/CN210532784U/zh
Priority claimed from CN201920773289.9U external-priority patent/CN210532785U/zh
Priority claimed from CN201920774126.2U external-priority patent/CN210070335U/zh
Priority claimed from CN201910447476.2A external-priority patent/CN111998587A/zh
Priority claimed from CN201910448119.8A external-priority patent/CN111998589A/zh
Priority claimed from CN201910447468.8A external-priority patent/CN111998586A/zh
Application filed by 海信（山东）冰箱有限公司 filed Critical 海信（山东）冰箱有限公司
Publication of WO2020181928A1 publication Critical patent/WO2020181928A1/zh

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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
    • 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
    • A47B57/00—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions
    • A47B57/06—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of the shelves
    • 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

Definitions

  • the application number is 201910178913.5, the application name is “a refrigerator with a lifting shelf", the application number is 201910178912.0, and the application name is “a refrigerator” and 2019 It was submitted to the Chinese Patent Office on May 27.
  • the application numbers are 201910447476.2, 201920774126.2, 201910448119.8, 201920773270.4, 201910447468.8, 201920773289.9, the priority of the Chinese patent application titled “A refrigerator with a lifting shelf", the entire contents of which are incorporated by reference Incorporated in this application.
  • This application relates to the field of smart home appliances, and in particular to a refrigerator with a shelf that can automatically rise and fall.
  • the shelf racks of existing refrigerator products are mostly shelf shelves with a fixed position.
  • bladder ribs are formed on opposite sides of the refrigerator inner liner, and the layer racks can be placed on the bladder ribs.
  • a number of ribs are reserved in the refrigerator to adjust the position of the shelf.
  • the space utilization rate inside the refrigerator is low, and many relatively large foods cannot be placed, which affects the user experience.
  • the demand for large-volume refrigerators has increased and the height of the refrigerator has increased. In this way, it is difficult to access the items in the uppermost shelf of the refrigerator and has become a problem that plagues users.
  • the mechanism for driving the layer frame up and down includes a screw 33 and a nut 34.
  • the power part is driven by the drive wire.
  • the rod 33 rotates to realize the linear movement of the nut 34 up and down;
  • the nut 34 is connected with the housing 321 of the slider assembly 32 to drive the slider assembly 32 to move up and down along the guide rail 31.
  • the power part includes a motor 35, a first rotating shaft 38 and a second rotating shaft 39.
  • the output shaft of the motor 35 is connected to the first rotating shaft 38 through a belt 36 to drive the first rotating shaft 38 to rotate.
  • One side of the first rotating shaft 38 is decelerated by a worm gear pair.
  • the mechanism transmits rotational movement to the screw rod 33 of a set of lifting mechanisms.
  • This type of automatic lifting device for the shelf frame converts the worm gear mechanism and the screw nut mechanism into linear motion through the motor, and the structure is complicated. Both the worm gear mechanism and the screw nut mechanism occupy a large space, which affects the effective storage space of the storage room.
  • the technical problem to be solved by this application is that the existing refrigerator lifting shelf occupies a large space.
  • the present application provides a refrigerator automatic lifting shelf with a simple structure and a small space occupation. .
  • a refrigerator with a lifting shelf including:
  • a storage room the storage room is provided with a lifting shelf and a shelf driving mechanism that drives the lifting shelf to move up and down, and the layer drive mechanism includes:
  • a drive motor the output shaft of the drive motor is wound with a traction rope, the other end of the traction rope is fixed with the first support, and the drive motor drives the first support along the traction rope
  • the guide rail moves up and down.
  • the refrigerator of the present invention is provided with a lifting shelf and a shelf drive mechanism.
  • the lifting shelf can move up and down under the drive of the shelf drive mechanism, which is convenient for users to store food materials of different heights.
  • the shelf drive mechanism includes a guide rail and a first support member slidably connected to the guide rail.
  • the lifting shelf is fixedly connected to the first support member; the driving motor drives the first support member to move up and down along the guide rail through the traction rope. Since the transmission mode of the layer frame drive mechanism adopts a traction rope traction mode, it has a simple structure and takes up less space than the existing worm-worm mechanism and a screw-nut mechanism converted into linear motion.
  • Figure 1 is a prior art refrigerator with an automatic lifting shelf
  • Figure 2 is a schematic diagram of a driving mechanism for an automatic lifting shelf in the prior art
  • FIG. 3 is a perspective view of a refrigerator with an automatic lifting shelf in Embodiment 1 of the application;
  • FIG. 4 is a schematic diagram of the three-dimensional structure of the driving mechanism of the lifting and lowering shelf in Embodiment 1 of the application;
  • FIG. 5 is a schematic diagram of the installation structure of the driving motor in Embodiment 1 of the application.
  • FIG. 6 is a schematic diagram of the guide rail structure in Embodiment 1 of the application.
  • Figure 7 is a schematic diagram of the structure of the lifting shelf in Embodiment 1 of the application.
  • FIG. 9 is a schematic diagram of the drive mechanism of the shelf with the emergency stop device in the first embodiment of the application under normal working conditions
  • FIG. 10 is a schematic diagram of the driving mechanism of the shelf with the emergency stop device in the first embodiment of the application when the shelf meets the obstacle;
  • Fig. 11 is a circuit diagram of a power commutation signal with an emergency stop device in the first embodiment of the application;
  • Figure 12 is a schematic diagram of the elevating shelf rising to the highest position in Embodiment 1 of the application;
  • Figure 13 is a schematic diagram of the elevating shelf lowered to the lowest position in Embodiment 1 of the application;
  • FIG. 14 is a schematic cross-sectional view of the refrigerator compartment along the horizontal direction in Embodiment 1 of the application;
  • FIG. 15 is another schematic cross-sectional view of the refrigerator compartment along the horizontal direction in Embodiment 1 of the application;
  • Example 16 is a perspective view of the decorative board in Example 1 of the application.
  • Figure 17 is a rear view of the decorative board in Example 1 of the application.
  • 20 is a state diagram of the shielding baffle when the shelf in the embodiment 1 of the application is at the lowest position;
  • FIG. 21 is a state diagram of the shielding baffle when the shelf in the embodiment 1 of the application is at the highest position
  • 22 is a front and back view of the decorative panel and the shielding plate when the shelf in the embodiment 1 of the application is at the lowest position;
  • FIG. 23 is a front and back view of the decorative panel and the shielding plate when the middle shelf is located at the middle position in Example 1 of the application;
  • 24 is a front and back view of the decorative panel and the shielding plate when the shelf in the embodiment 1 of the application is at the highest position;
  • FIG. 25 is a schematic diagram of the structure of an automatic lifting shelf equipped with a traction rope position adjustment device and a micro switch position adjustment device in Embodiment 2 of the application;
  • 26 is a schematic diagram of the structure of the traction rope position adjustment device and the micro switch position adjustment device in Embodiment 2 of the application;
  • FIG. 27 is a schematic structural diagram of a traction rope position adjusting device in Embodiment 2 of the application.
  • FIG. 28 is a perspective view of the adjusting plate and pressing member of the traction rope position adjusting device in Embodiment 2 of the application;
  • FIG. 29 is a schematic structural diagram of the fixing plate in Embodiment 2 of the application;
  • FIG. 30 is a schematic diagram of a partial structure of the fixing plate in Embodiment 2 of the application.
  • FIG. 31 is a schematic structural diagram of a micro switch position adjusting device in Embodiment 2 of the application.
  • 35 is a schematic diagram of the three-dimensional structure of the driving mechanism of the lifting and lowering shelf in Embodiment 2 of the application;
  • Fig. 36 is a partial enlarged view of the installation method of the reset member in Fig. 35.
  • connection should be interpreted broadly unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • connection should be interpreted broadly unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • Fig. 3 is a perspective view of a specific embodiment of the refrigerator of the present application; referring to Fig. 3, the refrigerator 1 of this embodiment has an approximate rectangular parallelepiped shape.
  • the appearance of the refrigerator 1 is defined by a storage compartment 100 that defines a storage space and a plurality of doors 200 disposed in the storage compartment 100.
  • the storage compartment 100 has an open box, which is composed of a storage compartment, a storage compartment shell, and two The foamed layer between is formed.
  • the storage compartment 100 is vertically partitioned into a lower freezing compartment 100A and an upper refrigerating compartment 100B. Each of the separated spaces may have independent storage space.
  • the freezing compartment 100A is defined at the lower side of the storage compartment 100 and may be selectively covered by the drawer-type freezing compartment door 200A.
  • the space defined above the freezing compartment 100A is partitioned into left and right sides to define the refrigerating compartment 100B, respectively.
  • the refrigerating compartment 100B can be selectively opened or closed by a refrigerating compartment door 200B pivotally mounted on the refrigerating compartment 100B.
  • the storage compartment 100 in the embodiment of the present application includes a storage drawer 101 located on the lower side.
  • the storage drawer has two layers. It includes two dry and wet fresh-keeping drawers located on the lower layer, and A wider storage drawer for storing longer ingredients on the upper side of the wet freshness drawer;
  • the storage room 100 also includes a shelf on the storage drawer 101; wherein the shelf includes a fixed shelf 102 and a lift The shelf 103;
  • the fixed shelf 102 is a shelf whose position cannot move up and down after installation.
  • bladder ribs are formed on the inner walls of both sides of the storage room 10, and the fixed shelf 102 is placed on the bile ribs.
  • the elevating floor frame 103 is a floor frame that is adjustable up and down after installation. Specifically, the elevating floor frame 103 moves up and down under the drive of the floor drive mechanism 300.
  • the relative position of the lifting shelf 103 and the fixed shelf 102 is not unique.
  • the fixed shelf 102 may be located on the upper side, or the lifting shelf 103 may be located on the upper side.
  • the lifting shelf 103 is located on the upper side, so that when the overall height of the refrigerator is high, when the user cannot store the food on the uppermost shelf, the lifting shelf 103 can be adjusted to move down to store the food. , Convenient for users to use.
  • the shelf drive mechanism 300 includes: a guide rail 301 fixed in the storage room 100, a first support 302 slidably connected to the guide rail 301, and the lifting shelf 103 It is fixedly connected to the first support 302; it also includes a driving motor 303 that drives the first support 302 to lift.
  • the output shaft 3031 of the driving motor 303 is wound around the traction rope 304, and the other end of the traction rope 304 Connected with the first support 302; when the lifting shelf 103 needs to move down, the output shaft 3031 of the driving motor 303 is controlled to rotate in the first direction, the traction rope 304 extends, and the lifting shelf 103 is under gravity When the lifting shelf 103 needs to move up, the output shaft of the drive motor 303 is controlled to rotate in the second direction (the opposite direction to the first direction), the traction rope 304 is gradually wound, and the lifting layer The frame 103 moves upward. Since the transmission mode of the layer frame drive mechanism adopts a traction rope traction mode, it has a simple structure and takes up less space than the existing worm-worm mechanism and a screw-nut mechanism converted into linear motion.
  • a shelf lifting control button 108 is provided on the side wall of the storage room 100, and the shelf lifting control button 108 is controlled by the user
  • the drive motor rotates forward, reverse or stops.
  • the shelf lifting control button 108 includes three buttons: an up button, a down button, and a stop button; wherein the up button is located on the upper side with an upward arrow mark, and the stop button is located in the middle with a stop mark, and The button is located on the lower side with a downward arrow logo.
  • the elevator control button 108 includes two buttons, namely an up/stop button and a down/stop button.
  • the up/stop button is used to control the elevator 103 to rise or stop;
  • the /stop button is used to control the lowering or stopping of the lifting shelf 103.
  • a guide rail 301 and a first support 302 are respectively provided, the guide rail 301 is installed on the rear side wall of the storage room 100, and the first support 302 is fixedly connected to the middle and rear position of the lifting shelf 103; the driving motor 303 is arranged on the upper side of the guide rail 301.
  • the elevating shelf 103 is only supported and fixed by the intermediate position. If the weight difference of the items placed on both sides is large, the elevating shelf 103 may tilt.
  • two guide rails 301 are provided, which are respectively located on opposite sides of the storage room 100, and the drive motor 303 is arranged on the rear side of the storage room 100, and a first pulley 305 is fixed on the output shaft of the drive motor 303; the left and right sides of the storage room 100 are respectively provided with second pulleys 306 for changing the traction direction of the traction rope
  • One ends of the two traction ropes 304 are respectively fixed to the first pulley 305, the middle positions of the two traction ropes 304 respectively bypass the second pulley 306, and the other ends of the traction ropes 304 are respectively fixed On the first support 302.
  • the first pulley 305 includes a sleeve body 3051 sleeved on the output shaft 3031 of the drive motor 303 and three radially extending baffles 3052, respectively pulling the left and right sides
  • the traction ropes 304 of the first support 302 are separated by the blocking pieces 3052 respectively.
  • the guide rail 301 is selected as a steel ball slide
  • the steel ball slide includes an outer rail 3011, an inner rail 3012, and balls 3013 located between the two;
  • the outer rail 3011 is fixed to the With respect to the side wall of the storage room 100, the first support 302 is fixedly connected to the inner rail 3012.
  • the above-mentioned steel ball slide rails can make the lifting shelf 103 move up and down only by overcoming the rolling friction. Under the same load, only a small driving force is needed to move the lifting shelf 103 up and down.
  • the lifting shelf 103 includes a shelf body 1031 and a shelf support frame 1032 for supporting the shelf body 1031, and the shelf support frame 1032 is fixed Connected to the lower two sides of the shelf body 1031, the shelf support frame 1032 is provided with a hook 1033 on the rear side; the first support 302 is provided with a hanging hole 3021, as shown in Figure 8, the shelf The hook 1033 of the support frame 1032 is hooked on the hanging hole 3021 of the first support 302.
  • This hooking method has high reliability and is convenient for users to disassemble and clean the lifting shelf 103.
  • connection between the first support 302 and the traction rope 304 is not unique.
  • a connection hole is formed on the upper side of the first support 302, and the traction rope 304 is directly connected to the connection. Hole on.
  • the first support 302 fixes the lifting shelf 103 and the traction rope 304 at the same time, which requires a higher support capability for itself. Therefore, in this embodiment, preferably, as shown in FIG. 8, a traction rope fixing member 307 is provided on the upper side of the first support 302, and the traction rope fixing member 307 is fixedly connected to the inner rail 3012 .
  • the traction rope fixing member 307 and the first support member 302 are independent of each other, and respectively support the lifting shelf 103 and the traction rope 304, the supporting performance is easy to ensure, and the manufacturing and assembly are easy.
  • the layer frame drive mechanism 300 also includes an emergency stop device for obstruction, which is used to control the drive motor to stop when the lifting layer frame encounters resistance when it rises or falls.
  • the emergency stop device includes a downward emergency stop device and an upward emergency stop device.
  • the downward emergency stop device is used to ensure When the elevating shelf 103 moves down, it stops moving downward when encountering an object obstruction, and the upward emergency stop device is used to ensure that the elevating shelf 103 stops moving upward when encountering an object obstruction when moving upward.
  • both the downward resistance emergency stop device and the upward resistance emergency stop device can be implemented by detecting the current of the drive motor 303.
  • the drive motor 303 is provided with a current sensor that detects the magnitude of the current. When the lifting shelf 103 encounters resistance when moving up or down, the current of the driving motor 303 changes suddenly. At this time, the controller controls the driving motor to stop running.
  • the downward resistance emergency stop device includes a micro switch 601
  • the micro switch 601 is fixed on the rear wall of the refrigerator compartment 100B.
  • the detection arm 6011 of the micro switch 601 is provided with an annular sleeve 6012, which is sleeved on the traction rope 304.
  • the The ring sleeve 6012 is sleeved on the traction rope section between the first pulley 305 and the second pulley 306.
  • the traction rope 304 is under normal conditions, as shown in FIG.
  • the detection arm 6011 of the micro switch 601 maintains the same position in the normal working state, and the circuit is in a normally closed state.
  • the lifting shelf 103 encounters obstacles during its descent As shown in Figure 10, the traction rope 304 changes from a tensioned state to a slack state.
  • the position of the detection arm 6011 of the micro switch 601 changes from a normally closed state to a normally open state.
  • the control unit cuts off The circuit, the driving motor 303 stops, and the lifting shelf 103 stops its descending movement. Since the position of the traction rope will change immediately when it encounters an obstacle, the micro switch 601 detects the position of the traction rope 304 to increase the response speed and improve the detection reliability.
  • 11 is a circuit diagram of the power commutation signal of the emergency stop device when there is a resistance; including a power commutation chip 602, the power commutation chip 602 is used to switch the polarity of the output terminal according to the signal input information, and is located on both sides of the traction rope 304
  • the first micro switch 601A and the second micro switch 601B are connected in series with each other and then connected in parallel with the diode 603, and then connected in series with the driving motor 303 and then connected to the two output terminals of the power commutation chip 602, where the diode 603
  • the anode is connected to the driving motor 303, and the cathode of the diode 603 is connected to the power commutation chip 602.
  • the input terminal of the power commutation chip 602 includes a +24V power interface and a GND terminal connected to the positive and negative electrodes of the 24V DC power supply, and a signal input terminal connected to the I/O port of the single-chip microcomputer to send a commutation signal; the power supply
  • the two output ends of the commutation chip are connected in series in the loop to provide a power signal for the emergency stop device in case of resistance.
  • the signal input terminal receives the commutation signal from the microcontroller, the power polarity of the two output terminals is reversed (for example: from the upper +24V lower GND to the upper GND lower +24V).
  • the two output terminals of the power reversing chip 602 are the upper end +24V and the lower end GND.
  • the current direction in the loop is clockwise, and the current flows through the first micro switch 601A on the two traction ropes 304 And the second micro switch 601B, and then flow through the driving motor 303, and the driving motor 303 rotates to drive the lifting shelf 103 to descend.
  • the lifting shelf 103 encounters obstacles during the descending process, which causes the traction rope 304 to become loose.
  • One or both of the first micro switch 601A and the second micro switch 601B will be disconnected, so that the original circuit is cut off.
  • the driving motor 303 stops rotating, and the lifting shelf 103 stops descending.
  • the up button After the single-chip microcomputer receives the key information, it sends a power commutation signal to the power commutation chip 602 via the signal input terminal.
  • the power commutation chip 602 switches the power at the two output ends of the power source and becomes the upper end GND lower end + 24V. At this time, the loop current becomes counterclockwise.
  • the micro switch 601 (the first micro switch 601A and/or the second micro switch 601B) is disconnected, the current flows through the drive motor 303 and can be turned on again through the diode 603 , So the driving motor 303 rotates in the reverse direction, and the lifting shelf 103 rises.
  • the two micro switches 601A/601B return to the on state, and the down button restores the function, and the rise and fall of the shelf can be controlled freely through the up and down buttons.
  • the refrigerator further includes a shelf stroke control device, and the shelf stroke control device includes a stroke provided on the rear inner wall of the storage room 100.
  • a switch 308, the travel switch 308 is connected in series with the drive motor 303, and the travel switch 308 is in a normally closed state.
  • the stroke switch 308 is triggered to turn on and the driving motor 303 stops; as shown in FIG. 13, when the lifting shelf 103 moves When it reaches the set lowest position, the travel switch 308 is triggered to turn on, and the driving motor 303 stops.
  • the shelf drive mechanism 300 In order to further reduce the space occupied by the storage room 100 by the shelf drive mechanism 300, as shown in FIG.
  • a motor mounting groove 106 is formed on the back wall of the storage room 100, and a motor reinforcement iron 104 is provided on the inner side of the back wall of the storage room 100 ,
  • the driving motor 303 installed in the motor mounting slot 106 is connected to the motor reinforcing iron 104 by bolts.
  • the left and right side walls of the storage room 100 are formed with guide rail installation grooves 107, and the inner sides of the left and right side walls of the storage room 100 are provided with guide rail reinforcement irons 105, which are installed in the guide rail installation grooves 107.
  • the guide rail 301 is connected to the guide rail reinforcing iron 105 by bolts.
  • the storage room 100 In order to make the interior of the storage room 100 more beautiful and more integrated, it also includes a decorative structure covering the above-mentioned shelf drive mechanism 300.
  • a decorative structure covering the above-mentioned shelf drive mechanism 300.
  • An integral panel may be used to cover the entire area where the layer frame driving mechanism 300 is located, and openings are provided on both sides of the panel, and the lifting layer frame 103 can move up and down along the opening.
  • the refrigerator 1 is an air-cooled refrigerator.
  • an air duct assembly is provided on the inner wall of the rear side of the storage room 100, wherein the air duct assembly includes an air duct cover Plate 401 and air duct foam (not shown in the figure), the air duct foam is located on the rear side of the air duct cover 401, and is connected to the rear wall of the refrigerator compartment through the air duct cover 401
  • An air duct structure is formed inside the air duct foam, and a plurality of air outlets 402 are respectively provided on both sides of the air duct foam, and the air duct assembly is blown into the refrigerator compartment 100B through the air outlets 402.
  • the decorative structure covering the layer frame driving mechanism 300 includes two parts, one of which is the air duct cover 401 covering the driving motor 303 and the upper half of the traction rope 304. Since the driving motor 303 is installed on the rear wall of the refrigerating compartment 100B, the air duct cover 401 can be skillfully used to cover the upper half of the driving motor 303 and the traction rope 304 to make the appearance of the refrigerating compartment better.
  • the other part is a decorative board 501 covering the area where the guide rail 301 is located.
  • the decorative board 501 is located on the left and right sides of the air duct cover 401, and the decorative board 501 is lifted and lowered into the shelf, as shown in Figures 14 and 15.
  • One end of the decorative plate 501 is clamped in the guide rail installation groove 107, and the other end is fixed on the rear wall of the refrigerating compartment 100B by two screws, and the two sides of the air duct cover 401 can cover the decorative plate 501 In this way, the integrity of the storage room can be maintained, and the guide rails and pulley components are prevented from being exposed to the outside, and the storage items affect the lifting of the lifting shelf.
  • the decorative board 501 is provided with an air guiding surface 5014 at the air outlet 402 of the air duct assembly 400 for guiding the air outlet direction of the air duct assembly.
  • the air guide surface 5014 is inclined or inwardly recessed.
  • the air guide surface 5014 is provided at the air outlet 402 to prevent the decorative plate 501 from blocking the air flow of the air duct assembly 400, thereby affecting the refrigeration of the refrigerator compartment. effect.
  • the decorative board 501 is provided with a first opening 5011 extending up and down, and the shelf support frame 1032 of the lifting shelf 103 penetrates the first opening 5011
  • the lifting shelf 103 can move up and down along the first opening 5011; in order to prevent sliding friction with the side wall of the first opening 5011 when the lifting shelf 103 moves up and down, the area of the first opening 5011 is set to be slightly larger
  • the shelf drive mechanism provided inside is exposed through the first opening 5011.
  • the The decorative board 501 is provided with a shielding plate 502 on the side away from the lifting shelf 103.
  • the shielding plate 502 is provided with a second opening 50214 matching the size of the shelf support frame, and the shelf support frame is inserted On the second opening 50214, the shielding plate 502 can move up and down with the lifting shelf 103 and cover at least part of the first opening 5011.
  • the shielding plate 502 can shield most of the first opening 5011.
  • the shielding plate 502 moves accordingly, and the covering plate 502 does not affect the movement of the lifting shelf.
  • the structure avoids the risk of internal and external communication leading to foreign objects inside. At the same time, it ensures the lifting reliability of the lifting shelf 103.
  • the fixed installation method of the shielding plate 502 is not unique. It can be independently slidably connected to the guide plate located on the rear side of the decorative board. In this way, since there is still a gap between the shielding plate 502 and the decorative board 501, The entry of foreign objects cannot be completely avoided. Therefore, in this embodiment, the shielding plate 502 is slidably connected to the rear surface of the decorative plate 501.
  • the decorative plate 501 is provided with a guide portion 5012, and the shielding plate 502 is slidably connected to the rear surface of the decorative plate 501.
  • the guide portion 5012 is on.
  • the guide portion 5012 is not unique, it only needs to realize the longitudinal sliding of the shielding plate 502 on it.
  • the guide portion 5012 is a plurality of L-shaped guide ribs formed on the decorative board 501, the L-shaped guide ribs are arranged in two rows longitudinally, and the shielding plates 502 are located at two Row between the L-shaped guide ribs.
  • the shielding plate 502 when installed, the L-shaped guide ribs can be moved outward to complete the installation. The whole process is convenient and quick; and, since there are fewer sliding friction surfaces, the shielding plate 502 slides more smoothly.
  • the shielding plate 502 is an integral plate structure whose length is greater than about 2 times the height of the first opening to ensure that when the lifting shelf 103 is at the lowest or highest position, the shielding plate 502 always covers the first opening.
  • One opening 5011 is an integral plate structure whose length is greater than about 2 times the height of the first opening to ensure that when the lifting shelf 103 is at the lowest or highest position, the shielding plate 502 always covers the first opening.
  • One opening 5011 is an integral plate structure whose length is greater than about 2 times the height of the first opening to ensure that when the lifting shelf 103 is at the lowest or highest position, the shielding plate 502 always covers the first opening.
  • One opening 5011 is an integral plate structure whose length is greater than about 2 times the height of the first opening to ensure that when the lifting shelf 103 is at the lowest or highest position, the shielding plate 502 always covers the first opening.
  • One opening 5011 is an integral plate structure whose length is greater than about 2 times the height of the first opening to ensure that when the lifting shelf
  • the shielding plate 502 Since the lifting distance of the lifting shelf 103 is relatively large, if the shielding plate 502 is set as an integral plate, when it is moved down to the lowest position, the lower end of the shielding plate 502 extends downwards too much, which affects the fixing of the lower fixed shelf 102 , Or, when the lifting shelf 103 moves up to the highest position, the upper end of the shielding baffle 502 extends upwards too much to top the top wall of the storage room; because, as shown in FIG.
  • the shielding baffle 502 includes mutually slidingly connected The first shielding plate 5021 and the second shielding plate 5022, the second opening 50214 is provided on the first shielding plate 5021, and the second shielding plate 5022 is located above and/or below the second opening 50214 Side; when the second shielding plate 5022 is located on the upper side of the second opening 50214, the decorative board 501 is provided with a high position limiting portion (not shown in the figure) that limits the highest position of the second shielding plate 5022; When the second shielding plate 5022 is located at the lower side of the second opening 50214, the decorative board 501 is provided with a low position limiting portion that limits the lowest position of the second shielding plate 5022.
  • the upper limit portion restricts the highest position of the second shielding plate 5022, and the second shielding plate 5022 Slide to the inner side of the first shielding plate 5021 to avoid the risk that the second shielding plate 5022 continues to move upward and cause the top wall of the storage room; when the lifting shelf 103 moves down, the lowest limit part restricts the second shielding At the lowest position of the plate 5022, the second shielding plate 5022 slides to the inside of the first shielding plate 5021 to avoid the risk that the second shielding plate 5022 continues to move downwards and interferes with the supporting device of the lower fixed shelf.
  • the high-position limiting portion or the low-position limiting portion 5013 is a limiting rib formed on the decorative board 501.
  • the second shielding plate 5022 is located on the lower side of the second opening 50214 as an example to describe the relationship between the two and the working process.
  • the second shielding plate 5022 located on the upper side of the second opening 50214 has the same working principle, which will not be repeated here.
  • the first shielding plate 5021 and the second shielding plate 5022 are respectively provided with a first limiting portion and a second limiting portion, as shown in FIG. 20,
  • the first stopper and the low stopper can cooperate to restrict the second shielding plate 5022 to the first position.
  • the first shielding plate 5021 is provided with a sliding rib 50211 on the lower side of the second opening 50214, and the second shielding plate 5022 is provided with a sliding groove 50221 matching the sliding ribs.
  • the first limiting portion includes a limiting protrusion 50213 provided at the upper end of the sliding ribs, when the lower end surface of the second shielding plate 5022 is matched with the low limiting portion 5013, the limiting protrusion 50213 Cooperate with the upper end surface of the second shielding plate 5022 to limit the second shielding plate 5022 to the first position, see FIG.
  • the second limiting portion includes a lower end of the sliding rib 50211
  • the first stop 50212 and the second stop 50222 disposed at the upper end of the sliding groove 50221, the first stop 50212 and the second stop 50222 cooperate to limit the second shielding plate 5022 to the For the second position, see Figure 21 for details.
  • Figures 22-24 are structural diagrams of the front and rear sides of the decorative board 501 when the elevating shelf 103 is from the lowest position to the middle position to the highest position; wherein, when the elevating shelf 103 is at the lowest position, as shown in Figure 22 , The second opening 50214 is located on the lowermost side, the second shielding plate 5022 slides to the inner side of the first shielding plate 5021, the lower end surface of the second shielding plate 5022 is matched with the lower limit part 5013, the The limiting protrusion 50213 cooperates with the upper end surface of the second shielding plate 5022 to limit the second shielding plate 5022 to the first position; when the lifting shelf 103 is in the middle position, as shown in FIG.
  • the second opening 50214 is at the middle position, the first shielding plate 5021 slides relative to the second shielding plate 5022, so that the second shielding plate 5022 is located outside the first shielding plate 5021, and the first stop The stop 50212 cooperates with the second stop 50222 to limit the second shielding plate 5022 to the second position; when the lifting shelf 103 is at the highest position, as shown in FIG. 24, the second opening 50214 is located at the highest position, and the first shielding plate 5021 drives the second shielding plate 5022 to move up to the highest position.
  • the second shielding plate 5022 is provided with two T-shaped sliding grooves 50221, and the first shielding plate 5021 is correspondingly provided with two T-shaped sliding ribs 50211.
  • this embodiment 2 is basically the same as that of embodiment 1, the difference is: as shown in Figures 25-34, this embodiment adds a traction rope position adjustment device 700 for adjusting the position of the traction rope 304 and A micro switch position adjusting device 800 for adjusting the position of the micro switch 601.
  • the traction rope position adjustment device 700 for adjusting the length of the traction rope 304 adopts the following structure: as shown in FIG. 27,
  • the traction rope position adjustment device 700 includes an adjustment plate 701 that can slide relative to the inner wall of the storage room 100, and the adjustment plate 701 is fixedly provided with a pressing member that is pressed against the traction rope 304 702.
  • the sliding direction of the adjusting plate 701 is not parallel to the extending direction of the traction rope 304. In this way, when the left and right sides of the shelf are uneven, the adjusting plate 701 is slid to make the height of the shelf lower. Pull the traction rope 304 on the side upward to adjust the height of the shelf.
  • the pressing member 702 includes a fixed shaft 7021 fixedly connected to the adjusting plate 701, a rotating wheel 7022 rotatably connected to the fixed shaft 7021, and the rotating wheel 7022 passes
  • the nut is slidably connected to the fixed shaft 7021, and a sliding groove 70221 is formed on the wheel surface of the rotating wheel 7022 to cooperate with the traction rope 304.
  • the sliding friction between the fixing part and the traction rope 304 is smaller, which prevents the traction rope 304 from wearing; at the same time, by setting the sliding groove 70221 to cooperate with the traction rope 304, the horizontal direction of the traction rope 304 can be avoided Separated from the pressing member 702.
  • a fixing plate 703 is fixedly installed on the rear wall of the storage room 100, and the adjusting plate 701 is slidably installed on the rear wall of the storage room 100.
  • a guide part and an adjustment part are provided between the fixed plate 703 and the adjustment plate 701. The guide part is used to guide the sliding direction of the adjustment plate 701, and the adjustment part is used to adjust The sliding position of the adjustment plate 701.
  • the adjusting part includes: an adjusting bolt 704 and a return spring 705 arranged between the fixing plate 703 and the adjusting plate 701, and the fixing plate 703 is provided with a first threaded hole 703A, the adjusting bolt 704 is inserted through the first threaded hole 7031, and its end acts on the adjusting plate 701.
  • the elastic force of the return spring 705 is suitable for pressing the adjusting plate 701 against the Adjust the bolt 704 on. In this way, the adjustment of the position of the adjustment plate 701 can be realized by only rotating the adjustment bolt 704.
  • the fixed plate 703 includes a fixed plate main body 7031, and the adjustment plate 701 slides along the fixed plate main body 7031; the fixed plate 703 further includes A first mounting plate 7032 and a second mounting plate 7033 are provided on the surface of the board body 7031, the first mounting plate 7032 is provided with the first threaded hole 7031, and the second mounting plate 7033 is provided for mounting the Return the positioning shaft 70331 of the spring 705.
  • the structure of the guide part is not unique.
  • it can adopt a prismatic guide rail structure capable of linear sliding, such as a dovetail guide rail.
  • This type of guide rail is in surface contact when sliding, so it can be adjusted.
  • the guide portion preferably adopts the following structure: as shown in Figures 29-31, the guide portion includes a guide post 706 provided on the fixing plate 703 and a guide post 706 provided on the adjusting plate
  • the guide groove 707 on the 701 that is matched with the guide post 706, so that when the adjustment bolt 704 is rotated to make the adjustment plate 701 slide, the guide post 706 and the guide groove 707 are matched, and the two are in line contact ,
  • the adjustment plate 701 slides smoothly, which is convenient for users to adjust.
  • the guide portion is set to an even number, such as 2 or 4, which are symmetrically arranged on the axis of the adjustment bolt 704. On both sides.
  • the guide post 706 includes a first shaft 7061 with a smaller diameter and a second shaft 7062 with a larger diameter; the first shaft 7061 is connected to the fixing plate 703;
  • the guide groove 707 includes a guide section 7071 that cooperates with the first shaft 7061 and an insertion section 7072 that cooperates with the second shaft 7062.
  • the inserting section 7072 is formed as a circular arc groove with an opening, the diameter of the circular arc groove is matched with the diameter of the second shaft 7062, and the width of the guide section 7071 is the same as that of the first shaft 7061. The diameter size fits.
  • the adjusting plate 701 is slid until the first shaft 7061 is matched with the guide section 7071 . In this way, the positioning of the adjusting plate 701 in the horizontal direction can be realized, and the adjusting plate 701 is prevented from being separated from the fixing plate 703 in the horizontal direction.
  • the above-mentioned traction rope position adjustment device can be provided with one, which can set the traction rope position adjustment device on the longer end of the traction rope 304, so that the height of the traction rope 304 can be adjusted by the traction rope position adjustment device.
  • the traction rope 304 on both sides of the drive motor 303 are respectively provided with a traction rope position adjustment device.
  • the traction rope position adjustment device When the above-mentioned traction rope position adjustment device is used to adjust the height of the traction rope 304, due to the change of the position of the traction rope 304, the initial position of the micro switch detection arm 6011 sleeved on the traction rope 304 will change, which affects the micro switch Normal response. Therefore, when the position of the traction rope 304 changes, the position of the micro switch 601 needs to be changed accordingly.
  • the refrigerator of this embodiment includes a micro switch position adjustment device 800 for adjusting the installation position of the micro switch; as shown in FIGS. 31-32, the micro switch position adjustment device 800 includes an installation seat 801.
  • the micro switch is fixedly connected to the mounting seat 801, and the mounting seat 801 can slide relative to the inner wall of the storage room 100 along a sliding track.
  • the mounting seat 801 is slidably mounted on the fixing plate 703, the fixing plate 703 is provided with a second threaded hole 703B, and the mounting seat 801 is formed with a circular arc Adjust the hole 8011.
  • the mounting seat 801 is fixed to the fixing plate 703 by screws.
  • the fixing plate 703 is also provided with a third threaded hole 703C
  • the mounting seat 801 is correspondingly provided with a circular mounting hole 8012 matching the size of the third threaded hole 703C.
  • Figure 33 is a schematic diagram of the traction rope in the unadjusted initial state
  • Figure 34 is the state diagram of the traction rope after being adjusted by the traction rope position adjustment device 700. After the position of the traction rope is lowered, the micro switch 601 simultaneously passes through the micro switch The position adjusting device 800 changes the position, which can ensure the normal response of the micro switch.
  • Embodiment 1 As shown in FIG. 25, FIG. 35 and FIG. 36, another difference between this embodiment and Embodiment 1 is that a reset member 900 for keeping the first support member 302 at the initial position is added in this embodiment.
  • the first supporting member 302 cannot be held due to the small dead weight of the first support 302 and the low friction coefficient of the guide rail. Set the position, and the first support 302 on both sides cannot be kept in the same horizontal position. Therefore, by providing the resetting member 900 that provides downward force to the first supporting member 302, the first supporting member 302 can still be maintained at the initial position after the lifting shelf 103 is removed.
  • one end of the reset member 900 is fixed to the inner bladder of the box, and the other end is fixedly connected to the first support member 302. One end is kept fixed, and the other end can provide force to the first support 302.
  • the restoring member 900 is a tension spring located on the lower side of the first support member 302 or a compression spring located on the upper side of the first support member 302. All of them can provide downward force to the first support 302.
  • the fixed layer frame 102 is provided on the lower side of the lifting shelf, and the fixed layer frame 102 is detachably mounted on the second support member 109 on.
  • the upper end of the restoring member (tension spring) 900 is fixed on the first supporting member 302 and the lower end is fixed on the second supporting member 109.
  • the extension direction of the restoring member 900 is a vertical direction, which can ensure that the force of the tension spring is always vertically downward.
  • the restoring member 900 is a compression spring
  • the lifting shelf 103 is the uppermost shelf of the storage room
  • the upper end of the compression spring is fixed to the upper wall of the box body.
  • the lower end is fixed on the first support 302 (not shown in the figure).
  • the restoring member 900 is a compression spring
  • the fixed layer frame 102 is provided on the upper side of the lifting layer frame 103, and the fixed layer frame 102 is detachably mounted on the second support member 109
  • the upper end of the compression spring is fixed on the second support 109, and the lower end is fixed on the first support 302 (not shown in the figure).

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Abstract

具有升降层架(103)的冰箱(1)，包括储藏室(100)，储藏室(100)内设有升降层架(103)以及驱动升降层架(103)上下移动的层架驱动机构(300)，层架驱动机构(300)包括：固定于储藏室(100)内的导轨(301)，可滑动连接于导轨(301)上的支撑件(302)，升降层架(103)与支撑件(302)固定连接；以及驱动电机(303)，驱动电机(303)的输出轴(3031)与支撑件(302)之间设有牵引绳(304)，驱动电机(303)通过牵引绳(304)带动支撑件(302)沿导轨(301)上下移动。层架可自动升降方便用户存放不同高度的食材，同时由于该层架驱动机构(300)的传动方式采用牵引绳(304)牵引的方式，相比现有层架驱动机构结构简单，占用空间较小。

Description

一种具有升降层架的冰箱
本申请要求于2019年3月11日提交中国专利局，申请号为201910178913.5，申请名称为“一种具有升降层架的冰箱”、申请号为201910178912.0，申请名称为“一种冰箱”以及2019年5月27日提交中国专利局，申请号为201910447476.2、201920774126.2、201910448119.8、201920773270.4、201910447468.8、201920773289.9，申请名称为“一种具有升降层架的冰箱”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及智能家电领域，特别涉及一种层架能够自动升降的冰箱。
背景技术
随着生活质量日益提高，具有容积大、功能多、分类储存等特点的多门冰箱占有率日渐趋多，人们对冰箱产品的智能化的要求程度也越来越高。
现有冰箱产品的层架多为位置固定不变的层架，通常在冰箱内胆相对两侧成型胆筋，层架放置于胆筋上即可。为了方便用户调节，通常在冰箱设计时会预留数个胆筋来进行调节层架的位置。但是，层架之间的高度不能适应不同体积的物品的放置，存储空间有一定局限性，冰箱内部的空间利用率低，许多体积比较大的食物放置不下，影响用户体验。另外，近年来，大容积冰箱的需求量提升使冰箱高度有升高趋势，这样，冰箱最上层层架内的物品取用比较困难也成为困扰用户的问题点。
为解决上述技术问题，现有技术提供了一种可自动升降的层架结构，如图1、图2所示，其驱动层架升降的机构包括丝杆33和螺母34，动力部分通过驱动丝 杆33转动，实现螺母34直线上下移动；所述螺母34与滑块组件32的壳体321连接，以带动滑块组件32沿导轨31上下移动。动力部分包括电机35、第一转轴38和第二转轴39，电机35的输出轴通过皮带36与第一转轴38连接，带动第一转轴38转动，第一转轴38的一侧通过蜗轮蜗杆副减速机构向一组升降机构的丝杆33传递旋转运动。这种层架自动升降装置通过电机带动涡轮蜗杆机构和丝杠螺母机构转换为直线运动，结构复杂，涡轮蜗杆机构和丝杠螺母机构都占用空间很大，影响储藏室的有效存储空间。
申请内容
本申请要解决的技术问题是现有冰箱升降层架占用空间较大的问题。为此，本申请提供一种结构简单且占用空间较小的冰箱自动升降层架。。
针对上述技术问题，本申请提供如下技术方案：
一种具有升降层架的冰箱，包括:
储藏室，所述储藏室内设有升降层架以及驱动所述升降层架上下移动的层架驱动机构，所述层架驱动机构包括：
固定于所述储藏室内的导轨，
可滑动连接于导轨上的第一支撑件，所述升降层架与所述第一支撑件固定连接；
以及驱动电机，所述驱动电机的输出轴上缠绕有牵引绳，所述牵引绳的另一端与所述第一支撑件固定，所述驱动电机通过所述牵引绳带动所述第一支撑件沿所述导轨上下移动。
本发明的技术方案相对现有技术具有如下技术效果：
本发明的冰箱，设有升降层架以及层架驱动机构，升降层架可在层架驱动机构的驱动下可上下移动，方便用户存放不同高度的食材。层架驱动机构包括导轨以及可滑动连接于导轨上的第一支撑件，升降层架与第一支撑件固定连 接；驱动电机通过所述牵引绳带动第一支撑件沿导轨上下移动。由于该层架驱动机构的传动方式采用牵引绳牵引的方式，相比现有涡轮蜗杆机构和丝杠螺母机构转换成直线运动的方式结构简单，占用空间较小。
附图说明
下面将通过附图详细描述本申请中优选实施例，将有助于理解本申请的目的和优点，其中:
图1为现有技术具有自动升降层架的冰箱；
图2为现有技术中自动升降层架的驱动机构示意图；
图3为本申请实施例1中具有自动升降层架的冰箱立体图；
图4为本申请实施例1中升降层架的层架驱动机构的立体结构示意图；
图5为本申请实施例1中驱动电机安装结构示意图；
图6为本申请实施例1中导轨结构示意图；
图7为本申请实施例1中升降层架的结构示意图；
图8为本申请实施例1中升降层架与第一支撑件的连接关系图；
图9为本申请实施例1中具有遇阻急停装置的层架驱动机构在正常工作情况下的示意图；
图10为本申请实施例1中具有遇阻急停装置的层架驱动机构在层架遇阻情况下的示意图；
图11为本申请实施例1中具有遇阻急停装置的电源换向信号线路图；
图12为本申请实施例1中升降层架上升至最高位置处的示意图；
图13为本申请实施例1中升降层架下降至最低位置处的示意图；
图14为本申请实施例1中冷藏室沿水平方向的剖切示意图；
图15为本申请实施例1中冷藏室沿水平方向的另一剖切示意图；
图16为本申请实施例1中装饰板的立体图；
图17为本申请实施例1中装饰板的后视图；
图18为本申请实施例1中中装饰板与遮挡板的配合图；
图19为本申请实施例1中遮挡板的爆炸图；
图20为本申请实施例1中层架位于最低位置处时遮挡板的状态图；
图21为本申请实施例1中层架位于最高位置处时遮挡板的状态图；
图22为本申请实施例1中层架位于最低位置处时装饰板与遮挡板的正面及背面视图；
图23为本申请实施例1中层架位于中间位置处时装饰板与遮挡板的正面及背面视图；
图24为本申请实施例1中层架位于最高位置处时装饰板与遮挡板的正面及背面视图；
图25为本申请实施例2中安装有牵引绳位置调节装置和微动开关位置调节装置的自动升降层架结构示意图；
图26为本申请实施例2中牵引绳位置调节装置和微动开关位置调节装置的结构示意图；
图27为本申请实施例2中牵引绳位置调节装置的结构示意图；
图28为本申请实施例2中牵引绳位置调节装置的调节板及抵压件的立体图；图29为本申请实施例2中固定板的结构示意图；
图30为本申请实施例2中固定板的局部结构示意图；
图31为本申请实施例2中微动开关位置调节装置的结构示意图；
图32为本申请实施例2中安装座的结构示意图；
图33为本申请实施例2中牵引绳在未调节的初始状态的示意图；
图34为本申请实施例2中牵引绳位置调节装置调节后牵引绳的状态图；
图35为本申请实施例2中升降层架的层架驱动机构的立体结构示意图；
图36为图35中复位件安装方式的局部放大图。
具体实施方式
下面将结合附图对本申请的技术方案进行清楚、完整地描述，显然，所描述 的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
此外，下面所描述的本申请不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
实施例1
图3是本申请冰箱的一种具体实施方式的立体图；参照图3，本实施例的冰箱1具有近似长方体形状。冰箱1的外观由限定存储空间的储藏室100和设置在储藏室100中的多个门体200限定，储藏室100具有开口的箱体，其由储藏室内胆、储藏室外壳以及位于两者之间的发泡层形成。所述储藏室100被竖直分隔成下方的冷冻室100A以及上方的冷藏室100B。所隔开的空间中的每一个 可具有独立的存储空间。
详细地，冷冻室100A限定在储藏室100的下侧处并且可通过抽屉式冷冻室门200A选择性地覆盖。限定在冷冻室100A上方的空间被隔成左侧和右侧以分别限定冷藏室100B。冷藏室100B可通过可枢转地安装在冷藏室100B上的冷藏室门体200B选择性地打开或关闭。
在本申请实施方式中的所述储藏室100内，包括位于下侧的储物抽屉101，所述储物抽屉为两层，其包括位于下层的两个干、湿保鲜抽屉，以及位于干、湿保鲜抽屉上侧的用于储藏较长食材的较宽的储物抽屉；该储藏室100内还包括位于所述储物抽屉101上的层架；其中，层架包括固定层架102和升降层架103；固定层架102为安装后位置不能上下移动的层架，通常，在所述储藏室10的两侧内壁上成型胆筋，固定层架102放置于胆筋上。升降层架103为安装后上下可调的层架，具体地，升降层架103在层架驱动机构300的驱动下上下移动。
所述升降层架103与所述固定层架102的相对位置不唯一，可以所述固定层架102位于上侧，也可以所述升降层架103位于上侧。作为优选，本实施方式中，所述升降层架103位于上侧，这样，冰箱整体高度较高时，用户无法存放最上层层架上的食材时，可通过调节升降层架103下移存放食材，方便用户使用。
如图4、图5所示，所述层架驱动机构300包括：固定于所述储藏室100内的导轨301，可滑动连接于导轨301上的第一支撑件302，所述升降层架103与所述第一支撑件302固定连接；还包括驱动所述第一支撑件302进行升降的驱动电机303，所述驱动电机303的输出轴3031缠绕牵引绳304，所述牵引绳304的另一端与所述第一支撑件302连接；当升降层架103需要下移时，控制驱动电机303的输出轴3031向第一方向转动，所述牵引绳304伸出，所述升降层架 103在重力的作用下向下移动；当升降层架103需要上移时，控制驱动电机303的输出轴向第二方向(第一方向的反方向)转动，所述牵引绳304逐渐缠绕，所述升降层架103向上移动。由于该层架驱动机构的传动方式采用牵引绳牵引的方式，相比现有涡轮蜗杆机构和丝杠螺母机构转换成直线运动的方式结构简单，占用空间较小。
为了便于用户控制所述升降层架103的升降，如图3所示，在所述储藏室100的侧壁上设有层架升降控制按钮108，所述层架升降控制按钮108用户控制所述驱动电机正转、反转或停止。
具体地，一种方式中，所述层架升降控制按钮108包括上升按钮、下降按钮以及停止按钮三种按钮；其中上升按钮位于上侧设有向上箭头标识，停止按钮位于中间具有停止标识，下降按钮位于下侧具有向下箭头标识。另一种方式中，所述层架升降控制按钮108包括两个按钮，分别为上升/停止按钮、下降/停止按钮，上升/停止按钮用于控制所述升降层架103上升或上升停止；下降/停止按钮用于控制所述升降层架103下降或下降停止。
一种实施方式中，所述层架驱动机构300中，导轨301以及第一支撑件302分别设置一个，所述导轨301安装于所述储藏室100的后侧壁上，所述第一支撑件302与所述升降层架103的中后部位置固定连接；驱动电机303设置于所述导轨301的上侧，这种方式中，牵引绳304的牵引距离较短，结构更为简单，生产成本较低。但是，该实施方式中，升降层架103仅靠中间位置支撑固定，若两侧放置物品重量差别较大时，升降层架103有倾斜的可能。
另一种实施方式中，如图4所示，为了使升降层架103更加稳定地上下移动，所述导轨301设置为两个，分别位于所述储藏室100的相对两侧，所述驱动 电机303设置于所述储藏室100的后侧，所述驱动电机303输出轴上固定有第一滑轮305；所述储藏室100的左右两侧分别设有用于转换牵引绳牵引方向的第二滑轮306，两个所述牵引绳304一端分别固定于所述第一滑轮305上，两个所述牵引绳304的中间位置分别绕过所述第二滑轮306，所述牵引绳304的另一端分别固定于所述第一支撑件302上。
具体地，如图5所示，所述第一滑轮305包括套设于所述驱动电机303的输出轴3031上的轴套本体3051以及三个径向延伸的挡片3052，分别牵引左右两侧第一支撑件302的所述牵引绳304分别通过所述挡片3052间隔开。
具体地，如图6所示，所述导轨301选为钢珠滑轨，所述钢珠滑轨包括外轨3011、内轨3012以及位于两者之间的滚珠3013；所述外轨3011固定于所述储藏室100侧壁，所述第一支撑件302与所述内轨3012固定连接。采用上述钢珠滑轨可以使升降层架103上下移动时只需克服滚动摩擦即可，相同负载下，只需要较小的驱动力即可使升降层架103上下移动。
所述升降层架103与所述第一支撑件302的固定连接方式不唯一，其可以采用螺纹固定的方式也可以采用卡扣连接的方式。具体地，如图7所示，本实施方式中，所述升降层架103包括搁板本体1031以及用于支撑所述搁板本体1031的搁板支撑架1032，所述搁板支撑架1032固定连接于所述搁板本体1031的下部两侧，所述搁板支撑架1032后侧设有挂钩1033；所述第一支撑件302设有挂孔3021，如图8所示，所述搁板支撑架1032的所述挂钩1033钩挂于所述第一支撑件302的所述挂孔3021上。这种钩挂的方式可靠性较高，同时便于用户对升降层架103拆卸清洗。
所述第一支撑件302与所述牵引绳304的连接方式不唯一，一种实施方式 中，所述第一支撑件302上侧成型有连接孔，所述牵引绳304直接连接于所述连接孔上。这种方式中第一支撑件302同时固定升降层架103以及牵引绳304，对其本身支撑能力要求较高。因此，本实施方式中，优选地，如图8所示，所述第一支撑件302的上侧设有牵引绳固定件307，所述牵引绳固定件307固定连接于所述内轨3012上。所述牵引绳固定件307与所述第一支撑件302互相独立，分别支撑升降层架103和牵引绳304，支撑性能容易保证，同时制造装配均较为容易。
所述升降层架103在上下移动过程中，会有物品阻挡升降层架103的可能性，此时，需要立即停止升降层架103继续移动，以避免升降层架103一侧偏斜导致升降层架103上物品倾倒。因此，所述层架驱动机构300还包括遇阻急停装置，用于在所述升降层架上升或下降时遇到阻力时控制所述驱动电机停机。为了保证升降层架103向上和向下运动的安全性，所述遇阻急停装置包括向下遇阻急停装置和向上遇阻急停装置，所述向下遇阻急停装置用于保证升降层架103下移时遇到物品阻挡时停止向下移动，所述向上遇阻急停装置用于保证升降层架103上移时遇到物品阻挡时停止向上移动。具体地，所述向下遇阻急停装置和向上遇阻急停装置均可以通过检测所述驱动电机303的电流实现，具体地，所述驱动电机303上设置检测电流大小的电流传感器，当所述升降层架103向上或向下移动遇到阻力时，所述驱动电机303的电流突变，此时，控制器控制所述驱动电机停止运行。上述遇阻急停装置中，由于是通过电流的变化阈值来控制驱动电机的启停，若阈值设置不够合理时，例如设置过大时，升降层架103无法及时停下，设置过小时，升降层架103在不应该停下的位置停下。
为了提供一种能够更加精确控制升降层架103在遇到阻力情况下停止的遇 阻急停装置，如图9、图10所示，所述向下遇阻急停装置包括微动开关601，所述微动开关601固定于所述冷藏室100B的后壁上，所述微动开关601的检测臂6011上设有环形套6012，套设于所述牵引绳304上，优选地，所述环形套6012套设于所述第一滑轮305与所述第二滑轮306之间的所述牵引绳段，所述牵引绳304在正常情况下，如图9所示，由于所述升降层架103的重力作用下处于张紧状态，所述微动开关601的检测臂6011在正常工作状态下保持位置一致，所述电路处于常闭状态，当升降层架103下降途中遇到障碍物阻挡时，如图10所示，牵引绳304由张紧状态变为松弛状态，此时所述微动开关601的检测臂6011位置改变，由常闭状态变为常开状态，此时，控制单元切断电路，驱动电机303停转，升降层架103停止下降运动。由于牵引绳遇到障碍物时，马上会有位置变化，微动开关601检测牵引绳304的位置可以提高响应速度，提高了检测可靠性。
图11为遇阻急停装置的电源换向信号线路图；包括电源换向芯片602，所述电源换向芯片602用于根据信号输入信息切换输出端的极性，位于所述牵引绳304两侧的第一微动开关601A和第二微动开关601B互相串联后与二极管603并联，再与所述驱动电机303串联后接入所述电源换向芯片602的两个输出端，其中二极管603的阳极与所述驱动电机303连接，二极管603的阴极与电源换向芯片602连接。
具体地，所述电源换向芯片602的输入端包括连接24V直流电源的正极和负极的+24V电源接口和GND端以及连接单片机发出换向信号的I/O口的信号输入端；所述电源换向芯片的两输出端串联在回路中，为所述遇阻急停装置提供电源信号。当信号输入端接收到单片机发来的换向信号后，则两输出端的电源极性 上下互换(如：由上端+24V下端GND变为上端GND下端+24V)。
升降层架正常下降时，所述电源换向芯片602两输出端为上端+24V下端GND，此时回路中电流方向为顺时针，电流流过两个牵引绳304上的第一微动开关601A和第二微动开关601B，再流过所述驱动电机303，驱动电机303转动带动升降层架103下降。此时升降层架103下降过程中遇到障碍物阻挡，导致牵引绳304变松，第一微动开关601A和第二微动开关601B有一个或者两个会断开，这样原回路被切断，所述驱动电机303停转，升降层架103停止下降。此时，再按下降按钮升降层架103不会动作，但可以通过按住上升按钮让升降层架103上升。因按下上升按钮时，单片机接收到此按键信息后，发出电源换向信号经信号输入端给到电源换向芯片602，电源换向芯片602两输出端电源换向，变为上端GND下端+24V。此时回路电流变为逆时针，微动开关601(第一微动开关601A和/或第二微动开关601B)处虽然断开，但电流流过驱动电机303后可再经二极管603导通，于是驱动电机303反向转动，升降层架103上升。当升降层架103上升一定距离后，两微动开关601A/601B恢复接通状态，下降按键恢复功能，又可以通过上升键和下降键进行层架上升和下降的自由控制。
具体地，为了进一步精确控制所述升降层架103的移动位置，所述冰箱还包括层架行程控制装置，所述层架行程控制装置包括在所述储藏室100的后侧内壁上设置的行程开关308，所述行程开关308与所述驱动电机303串联连接，所述行程开关308处于常闭状态。如图12所示，当所述升降层架103移动至设定最高位置时，触发所述行程开关308打开，所述驱动电机303停止；如图13所示，当所述升降层架103移动至设定最低位置时，触发所述行程开关308打开，所述驱动电机303停止。为了进一步降低该层架驱动机构300占用储藏室 100的空间，如图5所示，所述储藏室100后壁成型有电机安装槽106，所述储藏室100后壁内侧设有电机加强铁104，安装于所述电机安装槽106内的所述驱动电机303通过螺栓与所述电机加强铁104连接。如图14、图15所示，所述储藏室100左右侧壁成型有导轨安装槽107，所述储藏室100左右侧壁内侧设有导轨加强铁105，安装于所述导轨安装槽107内的所述导轨301通过螺栓与所述导轨加强铁105连接。这样，层架驱动机构300中较大的两个零件:驱动电机303和导轨301均嵌设于储藏室内壁内侧的安装槽内，整个层架驱动机构300占用空间很小。
为了使储藏室100内部较为美观整体性较好，还包括覆盖上述层架驱动机构300的装饰结构，具体地，当冰箱为直冷冰箱时，所述储藏室100内侧不设置风道结构时，其可以采用一个整体面板覆盖住整个层架驱动机构300所在的区域，所述面板两侧设有开口，所述升降层架103可沿所述开口上下移动。
本实施方式中，所述冰箱1为风冷冰箱，如图14、图15所示，所述储藏室100的后侧内壁处设有风道组件，其中，所述风道组件包括风道盖板401以及风道泡沫(图中未示出)，所述风道泡沫位于所述风道盖板401后侧，并通过所述风道盖板401与所述冷藏室的后壁卡扣连接，所述风道泡沫内部形成风道结构，所述风道泡沫两侧分别设置若干个出风口402，将所述风道组件通过若干所述出风口402向冷藏室100B内送风。
所述覆盖上述层架驱动机构300的装饰结构包括两部分，其中一部分为覆盖所述驱动电机303以及所述牵引绳304的上半部分的所述风道盖板401。由于驱动电机303安装于冷藏室100B的后壁上，可以巧妙地利用风道盖板401覆盖在所述驱动电机303以及所述牵引绳304的上半部分使冷藏室内的外观整体性较好。其中另一部分为覆盖所述导轨301所在区域的装饰板501，所述装饰板501位于所述风道盖板401左右两侧，装饰板501升降层架其中，如图 14、图15所示，所述装饰板501一端卡装于导轨安装槽107内，另一端通过两个螺钉固定于所述冷藏室100B的后壁上，且所述风道盖板401两侧能够覆盖所述装饰板501的部分板面，这样，可以保持储藏室内的整体性，避免导轨以及滑轮组件等裸露在外部，存放物品影响升降层架升降等问题。
所述装饰板501在所述风道组件400的出风口402处设有导风面5014，用于引导所述风道组件的出风方向。具体地，所述导风面5014斜面或向内凹陷的弧面，通过在出风口402处设置导风面5014可以避免装饰板501阻挡所述风道组件400出风，进而影响冷藏室的冷藏效果。
如图16、图17、图18所示，所述装饰板501设有上下延伸的第一开口5011，所述升降层架103的所述搁板支撑架1032穿设于所述第一开口5011，所述升降层架103可沿所述第一开口5011上下移动；为了防止升降层架103上下移动时与所述第一开口5011侧壁滑动摩擦，所述第一开口5011的面积设置稍大防止两者接触，因此，设置在内部的层架驱动机构则通过所述第一开口5011暴露，当冰箱储藏室的食物进入内部则会影响到该层架驱动机构的可靠性；因此，所述装饰板501在远离所述升降层架103的一侧设有遮挡板502，所述遮挡板502设有与所述搁板支撑架大小匹配的第二开口50214，所述搁板支撑架插接于所述第二开口50214上，所述遮挡板502可随所述升降层架103上下移动且覆盖至少部分所述第一开口5011。
这样，遮挡板502可以遮挡所述第一开口5011的大部分区域，在升降层架103上下移动时，所述遮挡板502随之移动，遮挡板502不会影响升降层架的移动，上述遮挡结构避免内外相通导致内部进入异物的风险。同时，其保证了升降层架103的升降可靠性。
所述遮挡板502的固定安装方式不唯一，其可以独立地滑动连接于位于所述装饰板后侧的导向板上，这种方式中，由于遮挡板502与装饰板501之间仍有空隙，不能完全避免异物进入。因此，本实施方式中，所述遮挡板502滑动连接于所述装饰板501的后表面，具体地，所述装饰板501上设有导向部 5012，所述遮挡板502可上下滑动地连接于所述导向部5012上。
所述导向部5012的结构不唯一，其只要实现遮挡板502在其上纵向滑动即可。作为优选，如图17所示，所述导向部5012为成型于所述装饰板501上的若个L形导向筋，所述L形导向筋沿纵向设置两排，所述遮挡板502位于两排所述L形导向筋之间。这种方式中，安装所述遮挡板502时，可以向外掰动L形导向筋即可完成安装，整个过程方便快捷；并且，由于滑动摩擦面较少，遮挡板502的滑动更加顺畅。
其中一种实施方式中，所述遮挡板502为一个整体板结构，其长度大于第一开口高度的2倍左右即可保证升降层架103在最低位置或最高位置时，遮挡板502始终覆盖第一开口5011。
由于升降层架103的升降距离较大，若将遮挡板502设置成整体板时，向下移动至最低位置时，遮挡板502的下端向下伸出过多影响到下层固定层架102的固定，抑或，当升降层架103向上移动到最高位置时遮挡板502的上端向上伸出过多顶在储藏室顶壁上；因为，如图19所示，所述遮挡板502包括互相滑动连接的第一遮挡板5021和第二遮挡板5022，所述第二开口50214设置于所述第一遮挡板5021上，所述第二遮挡板5022位于所述第二开口50214的上侧和/或下侧；当第二遮挡板5022位于所述第二开口50214的上侧时，所述装饰板501设有限制所述第二遮挡板5022最高位置的高位限位部(图中未示出)；当第二遮挡板5022位于所述第二开口50214的下侧时，所述装饰板501设有限制所述第二遮挡板5022最低位置的低位限位部。
这样，通过设置能够相对滑动的第一遮挡板5021和第二遮挡板5022，在所述升降层架103上移时，最高限位部限制第二遮挡板5022的最高位置，第二遮挡板5022滑动至所述第一遮挡板5021的内侧，避免第二遮挡板5022继续上移导致顶在储藏室顶壁的风险；当所述升降层架103下移时，最低限位部限制第二遮挡板5022的最低位置，第二遮挡板5022滑动至所述第一遮挡板5021的内侧，避免第二遮挡板5022继续下移导致与下部固定层架的支撑装置 干涉的风险。
具体地，所述高位限位部或所述低位限位部5013为成型于所述装饰板501上的限位筋。
本实施方式中，如图18-图24所示，以所述第二遮挡板5022位于所述第二开口50214的下侧为例介绍两者之间的关系以及工作过程。对于本领域技术人员来讲，所述第二遮挡板5022位于所述第二开口50214的上侧具有同样的工作原理，在此不再赘述。
为了进一步限制所述第二遮挡板5022的滑动位置，所述第一遮挡板5021与所述第二遮挡板5022分别设有第一限位部和第二限位部，如图20所示，所述第一遮挡板5021向接近所述第二遮挡板5022的方向移动时，所述第一限位部与所述低位限位部配合可将所述第二遮挡板5022限位至第一位置；如图21所示，所述第一遮挡板5021向远离所述第二遮挡板5022的方向移动时，所述第二限位部可将所述第二遮挡板5022限位至第二位置。
具体地，如图19所示，所述第一遮挡板5021在所述第二开口50214下侧设有滑动筋50211，所述第二遮挡板5022设有与所述滑动筋匹配的滑动槽50221；所述第一限位部包括设置于所述滑动筋上端的限位凸起50213，当所述第二遮挡板5022下端面与所述低位限位部5013配合，所述限位凸起50213与所述第二遮挡板5022的上端面配合将所述第二遮挡板5022限位至所述第一位置，具体参见图20；所述第二限位部包括设置于所述滑动筋50211下端的第一止挡50212以及设置于所述滑动槽50221上端第二止挡50222，所述第一止挡50212与所述第二止挡50222配合将所述第二遮挡板5022限位至所述第二位置，具体参见图21。
图22-24为升降层架103从最低位置到中间位置至最高位置时，所述装饰板501前后两侧的结构图；其中，所述升降层架103位于最低位置时，如图22所示，所述第二开口50214位于最下侧，所述第二遮挡板5022滑动至第一遮挡板5021的内侧，所述第二遮挡板5022下端面与所述低位限位部5013配 合，所述限位凸起50213与所述第二遮挡板5022的上端面配合将所述第二遮挡板5022限位至所述第一位置；所述升降层架103位于中间位置时，如图23所示，所述第二开口50214位于中间位置，所述第一遮挡板5021相对第二遮挡板5022滑动，使所述第二遮挡板5022位于所述第一遮挡板5021的外侧，所述第一止挡50212与所述第二止挡50222配合将所述第二遮挡板5022限位至所述第二位置；所述升降层架103位于最高位置时，如图24所示，所述第二开口50214位于最高位置，所述第一遮挡板5021带动第二遮挡板5022上移至最高位置。
具体地，所述第二遮挡板5022上设置两条T形的滑动槽50221，所述第一遮挡板5021上对应设有两条T形的滑动筋50211。
实施例2
本实施例2与实施例1的结构基本相同，区别在于：如图25-图34所示，本实施例中增加了用于调节所述牵引绳304位置的牵引绳位置调节装置700以及用于调节所述微动开关601位置的微动开关位置调节装置800。
由于当两侧的牵引绳304的长度调节好时，容易导致层架左右高低不平，因此，调节所述牵引绳304长度的所述牵引绳位置调节装置700采用如下结构：如图27所示，所述牵引绳位置调节装置700包括调节板701，所述调节板701可相对所述储藏室100内壁滑动，所述调节板701上固定设有抵压于所述牵引绳304上的抵压件702，所述调节板701的滑动方向与所述牵引绳304的延伸方向不平行，这样，在层架左右两侧高低不平时，通过滑动所述调节板701，以使层架高度较低一侧的牵引绳304向上提拉，实现层架高度调节。
具体地，如图28所示，所述抵压件702包括固定连接于所述调节板701的固定轴7021，可转动连接于所述固定轴7021上的转动轮7022，所述转动轮7022通过螺母可滑动地连接于所述固定轴7021上，所述转动轮7022的轮面上成型有与所述牵引绳304配合的滑槽70221。转动轮7022与所述牵引绳304配合相比固定件与牵引绳304配合滑动摩擦小，避免牵引绳304磨损；同时，通 过设置滑槽70221与牵引绳304配合，可以避免牵引绳304沿水平方向与抵压件702脱离。
具体地，如图26及图29所示，为了方便所述调节板701安装与调节，所述储藏室100的后壁上固定安装有固定板703，所述调节板701可滑动地安装于所述固定板703上，所述固定板703与所述调节板701之间设有导向部和调节部，所述导向部用于引导所述调节板701的滑动方向，所述调节部用于调节所述调节板701的滑动位置。
具体地，如图26、图27所示，所述调节部包括：设置在固定板703与调节板701之间的调节螺栓704和复位弹簧705，所述固定板703上设有第一螺纹孔703A，所述调节螺栓704穿设于所述第一螺纹孔7031，其端部作用于所述调节板701上，所述复位弹簧705的弹力适于将所述调节板701抵压于所述调节螺栓704上。这样，只需旋转调节螺栓704即可实现对所述调节板701的位置调节。
更具体地，如图29-图31所示，所述固定板703包括固定板主体7031，所述调节板701沿所述固定板主体7031滑动；所述固定板703还包括垂直于所述固定板主体7031板面设置的第一安装板7032和第二安装板7033，所述第一安装板7032上设有所述第一螺纹孔7031，所述第二安装板7033设有用于安装所述复位弹簧705的定位轴70331。
具体地，所述导向部的结构不唯一，一种实施方式中，其可以采用能够实现直线滑动的棱柱形导轨结构，例如燕尾形导轨等，这类导轨形式由于滑动时是面接触，调节起来较为困难；因此，本实施中，导向部优选采用如下结构形式：如图29-图31所示，所述导向部包括设置于所述固定板703上的导向柱706以及设置于所述调节板701上与所述导向柱706配合的导向槽707，这样在旋转所述调节螺栓704使所述调节板701滑动时，所述导向柱706与所述导向槽707进行配合，两者为线接触，所述调节板701的滑动较顺畅，方便用户调节。
更具体地，为了避免设置一个所述导向部导致所述调节板701移动不稳定，所述导向部设置为偶数个，例如2个或4个，其对称地设置在所述调节螺栓704轴线的两侧。
更具体地，如图30所示，所述导向柱706包括直径较小的第一轴7061和直径较大的第二轴7062；所述第一轴7061与所述固定板703连接；如图28所示，所述导向槽707包括与所述第一轴7061配合的导向段7071以及与所述第二轴7062配合的插接段7072。其中，所述插接段7072成型为具有开口的圆弧槽，所述圆弧槽的直径与所述第二轴7062的直径尺寸配合，所述导向段7071的宽度与所述第一轴7061的直径尺寸配合。安装时，所述导向柱706的第二轴7062从所述导向槽707的所述插接段7072插入后，将所述调节板701滑动至所述第一轴7061与所述导向段7071配合。这样，可以实现所述调节板701在水平方向的定位，避免调节板701沿水平方向与所述固定板703脱离。
上述牵引绳位置调节装置可以设置一个，其可以将牵引绳位置调节装置设置于所述牵引绳304较长的一端，这样，通过牵引绳位置调节装置调节所述牵引绳304的高低将层架调节至水平；为了方便调节，在所述驱动电机303两侧的所述牵引绳304上分别设置一个上述牵引绳位置调节装置。
采用上述牵引绳位置调节装置调节牵引绳304的高度时，由于牵引绳304位置的变化，会使套设于牵引绳304上的微动开关检测臂6011的初始位置变化，影响该微动开关的正常响应。因此，在所述牵引绳304位置变化时，所述微动开关601的位置也需要随之改变。
因此，如图25所示，本实施例的冰箱包括调节所述微动开关安装位置的微动开关位置调节装置800；图31-32所示，所述微动开关位置调节装置800包括安装座801，所述微动开关固定连接于所述安装座801上，所述安装座801可相对于所述储藏室100内壁沿滑动轨迹滑动。
具体地，如图31所示，所述安装座801可滑动地安装于所述固定板703上，所述固定板703上设有第二螺纹孔703B，所述安装座801上成型有圆弧调 节孔8011，所述牵引绳304位置调节到位后，调节所述安装座801使所述圆弧调节孔8011与固定板703上的第二螺纹孔703B相对，使检测臂6011处于初始位置后，通过螺钉将所述安装座801固定于所述固定板703上。
为了进一步提高调节便利性，所述固定板703上还设有第三螺纹孔703C，所述安装座801上对应设有与所述第三螺纹孔703C尺寸匹配的圆形安装孔8012。这样，在安装调节时，首先通过螺钉将所述安装座801通过第二螺纹孔703B和第三螺纹孔703C定位于所述固定板703上(不进行锁紧连接)，调节所述安装座801使检测臂6011处于初始位置后，再通过螺钉将所述安装座801锁紧于所述固定板703上，完成所述安装座801及微动开关601位置的调节。
如图33所示为牵引绳在未调节的初始状态的示意图；图34为经过牵引绳位置调节装置700调节后牵引绳的状态图，牵引绳位置降低后，微动开关601同时通过微动开关位置调节装置800进行位置改变，其可以保证微动开关的正常响应。
如图25、图35及图36所示，本实施例与实施例1的另一处区别在于本实施例中增加了用于使第一支撑件302保持在初始位置处的复位件900。
由于冰箱内的层架需要不定期的进行拆卸清洗操作，当升降层架103进行拆卸时，由于第一支撑件302的自重较小且导轨的摩擦系数较小，第一支撑件302无法保持在设定位置，且两侧的第一支撑件302不能保持在同一水平位置。因此，通过设置向所述第一支撑件302提供向下的作用力的复位件900，可以使拆卸升降层架103后，所述第一支撑件302依然能够保持在初始位置处。
具体地，所述复位件900的一端与所述箱体内胆保持固定，另一端与所述第一支撑件302固定连接。其一端保持固定，另一端可向第一支撑件302提供作用力。
具体地，所述复位件900为位于所述第一支撑件302下侧的拉簧或者位于所述第一支撑件302上侧的压缩弹簧。其均可以向第一支撑件302提供向下 的作用力。
更具体地，一种实施方式中，如图35及图36所示，所述升降层架的下侧设置所述固定层架102，所述固定层架102可拆卸地安装于第二支撑件109上。所述复位件(拉簧)900的上端通过固定于所述第一支撑件302上，下端固定于所述第二支撑件109上。所述复位件900的延伸方向为竖直方向，其可以保证所述拉簧的作用力始终竖直向下。
另一种实施方式中，所述复位件900为压缩弹簧，所述升降层架103为所述储藏室的最上层的层架，所述压缩弹簧的上端固定于所述箱体内胆上壁，下端固定于所述第一支撑件302上(图中未示出)。
另一种实施方式中，所述复位件900为压缩弹簧，所述升降层架103的上侧设置所述固定层架102，所述固定层架102可拆卸地安装于第二支撑件109上；所述压缩弹簧的上端固定于所述第二支撑件109上，下端固定于所述第一支撑件302上(图中未示出)。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本申请创造的保护范围之中。

Claims (10)

  1. 一种具有升降层架的冰箱，包括:
    储藏室，所述储藏室内设有升降层架以及驱动所述升降层架上下移动的层架驱动机构，
    其特征在于：所述层架驱动机构包括：
    固定于所述储藏室内的导轨，
    可滑动连接于导轨上的第一支撑件，所述升降层架与所述第一支撑件固定连接；
    以及驱动电机，所述驱动电机的输出轴上缠绕有牵引绳，所述牵引绳的另一端与所述第一支撑件固定，所述驱动电机通过所述牵引绳带动所述第一支撑件沿所述导轨上下移动。
  2. 根据权利要求1所述的具有升降层架的冰箱，其特征在于：
    还包括遇阻急停装置，所述遇阻急停装置用于在所述升降层架上升或下降时遇到阻力时控制所述驱动电机停转。
  3. 根据权利要求2所述的冰箱，其特征在于：
    所述遇阻急停装置包括向上遇阻急停装置，所述向上遇阻急停装置包括用于检测所述驱动电机电流的电流传感器，所述电流传感器检测到电流突变时，控制所述驱动电机停转。
  4. 根据权利要求2所述的冰箱，其特征在于：
    所述遇阻急停装置包括向下遇阻急停装置，所述向下遇阻急停装置包括与所述驱动电机电连接的微动开关，所述微动开关的检测臂套设于所述牵引绳上，所述牵引绳的位置改变控制所述微动开关断开，进而控制所述驱动电机停转。
  5. 根据权利要求1所述的冰箱，其特征在于：
    所述导轨设置为两个，分别位于所述储藏室的相对两侧；
    所述驱动电机设置于所述储藏室的后侧，所述驱动电机输出轴上固定有第一滑轮；
    所述储藏室的左右两侧分别设有用于转换牵引绳牵引方向的第二滑轮，两个所述牵引绳一端分别固定于所述第一滑轮上，两个所述牵引绳的中间位置分别绕过所述第二滑轮，所述牵引绳的另一端分别固定于所述第一支撑件上。
  6. 根据权利要求1所述的具有升降层架的冰箱，其特征在于：
    还包括用于调节所述牵引绳位置的牵引绳位置调节装置，所述牵引绳位置调节装置包括：
    调节板，所述调节板可相对所述储藏室内壁滑动，所述调节板的滑动方向与所述牵引绳的延伸方向不平行；
    抵压件，安装于所述调节板上并抵压于所述牵引绳。
  7. 根据权利要求1所述的具有升降层架的冰箱，其特征在于：
    所述升降层架包括：
    搁板本体；
    支撑所述搁板本体的搁板支撑架，所述搁板支撑架固定连接于所述搁板本体的下部两侧，所述搁板支撑架后侧设有挂钩；
    所述第一支撑件设有挂孔，所述搁板支撑架的所述挂钩钩挂于所述第一支撑件的所述挂孔上。
  8. 根据权利要求7所述的具有升降层架的冰箱，其特征在于：
    还包括位于所述升降层架与所述层架驱动机构之间的装饰板，所述装饰板设有上下延伸的第一开口，所述搁板支撑架穿设于所述第一开口，所述升降层架 可沿所述第一开口上下移动；
    所述装饰板远离所述升降层架的一侧设有遮挡板，所述遮挡板设有与所述搁板支撑架大小匹配的第二开口，所述搁板支撑架插接于所述第二开口上，所述遮挡板可随所述升降层架上下移动且覆盖至少部分所述第一开口。
  9. 根据权利要求1所述的具有升降层架的冰箱，其特征在于：
    所述储藏室内还包括固定层架，所述固定层架可拆卸地安装于第二支撑件上，所述第一支撑件与所述第二支撑件之间设有复位件，所述复位件适于向所述第一支撑件提供向下的作用力。
  10. 根据权利要求1所述的具有升降层架的冰箱，其特征在于：
    所述导轨为钢珠滑轨，所述钢珠滑轨包括外轨、内轨以及位于两者之间的滚珠；所述外轨固定于所述储藏室侧壁，所述第一支撑件与所述内轨固定连接。
PCT/CN2020/073350 2019-03-11 2020-01-21 一种具有升降层架的冰箱 WO2020181928A1 (zh)

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CN201910178912.0 2019-03-11
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CN201920773270.4U CN210532784U (zh) 2019-05-27 2019-05-27 一种具有升降层架的冰箱
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CN201920774126.2U CN210070335U (zh) 2019-05-27 2019-05-27 一种具有升降层架的冰箱
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