WO2021036434A1 - 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

Info

Publication number
WO2021036434A1
WO2021036434A1 PCT/CN2020/096948 CN2020096948W WO2021036434A1 WO 2021036434 A1 WO2021036434 A1 WO 2021036434A1 CN 2020096948 W CN2020096948 W CN 2020096948W WO 2021036434 A1 WO2021036434 A1 WO 2021036434A1
Authority
WO
WIPO (PCT)
Prior art keywords
shelf
pulley
lifting shelf
refrigerator
lifting
Prior art date
Application number
PCT/CN2020/096948
Other languages
English (en)
French (fr)
Inventor
王仁华
张树栋
朱建高
申乃雨
李利云
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 CN201910791248.7A external-priority patent/CN112432416A/zh
Priority claimed from CN201921392757.4U external-priority patent/CN210980489U/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 WO2021036434A1 publication Critical patent/WO2021036434A1/zh

Links

Images

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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures

Definitions

  • the present disclosure relates to the field of smart home appliances, in particular to a refrigerator with a lifting shelf.
  • the shelf racks of existing refrigerator products are mostly shelf shelves with fixed positions.
  • 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 during the design of the refrigerator to adjust the position of the shelf.
  • the height between the shelves cannot be adapted to the placement of items of different sizes, and the storage space has certain limitations.
  • 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 it has become a problem that plagues users.
  • the present disclosure provides a refrigerator with a lifting shelf, comprising: a storage room provided with a lifting shelf and a shelf drive mechanism for driving the lifting shelf to move up and down, the shelf drive mechanism comprising: A drive motor installed on the inner wall of the storage room, the drive motor outputs torque through a drive output shaft; a guide rail fixed in the storage room, slidingly connected to the support on the guide rail, the lifting shelf and the The support is fixedly connected; and a first pulley fixedly connected to the drive output shaft, a traction rope is wound on the first pulley, and the other end of the traction rope is fixedly connected to the support; wherein
  • the traction rope includes a rope body and a limit block located at one end of the rope body.
  • the end surface of the first pulley is provided with an insertion groove for fixing the end of the traction rope.
  • the limiting groove matched with the limiting block and the connecting groove matched with the rope body, the connecting groove extending to the pulley surface of the first pulley.
  • Figure 1 is a refrigerator with an automatic lifting shelf in an embodiment of the disclosure
  • FIG. 2 is a schematic diagram of the driving mechanism of the automatic lifting shelf in the embodiment of the disclosure.
  • Figure 3 is a perspective view of a refrigerator with an automatic lifting shelf in an embodiment of the disclosure
  • FIG. 4 is a schematic diagram of the three-dimensional structure of the driving mechanism of the lifting and lowering shelf in the embodiment of the disclosure
  • FIG. 5 is a schematic diagram of the installation structure of the drive motor in the embodiment of the disclosure.
  • FIG. 6 is a diagram of the connection relationship between the traction rope, the first pulley and the motor mounting box in the embodiment of the disclosure
  • FIG. 7 is a schematic diagram of the fixed connection structure of the traction rope and the first pulley in the embodiment of the disclosure.
  • Fig. 10 is a schematic diagram of a guide rail structure in an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of the structure of the lifting shelf in the embodiment of the disclosure.
  • Figure 12 is a diagram of the connection relationship between the lifting shelf and the support in the embodiment of the disclosure.
  • FIG. 13 is a schematic diagram of the driving mechanism of the shelf with the emergency stop device in the embodiment of the disclosure under normal working conditions;
  • FIG. 14 is a schematic diagram of the driving mechanism of a shelf with an emergency stop device in an embodiment of the disclosure when the shelf encounters an obstruction;
  • 15 is a circuit diagram of a power supply commutation signal with an emergency stop device in an embodiment of the disclosure
  • Fig. 16A is a rear schematic view of the motor mounting box in the open state of the embodiment of the disclosure.
  • Figure 16B is a front schematic view of the motor mounting box in an open state in the embodiment of the disclosure.
  • FIG. 17A is a schematic diagram of the cam of the stroke detection device triggering the first stroke switch in the embodiment of the disclosure.
  • 17B is a schematic diagram of a second travel switch triggered by a cam of the travel detection device in an embodiment of the disclosure
  • FIG. 19 is a schematic cross-sectional view of the refrigerator compartment along the horizontal direction in the embodiment of the disclosure.
  • FIG 20 is another schematic cross-sectional view of the refrigerator compartment along the horizontal direction in the embodiment of the disclosure.
  • Figure 21 is a perspective view of a decorative board in an embodiment of the disclosure.
  • Figure 22 is a rear view of the decorative board in the embodiment of the disclosure.
  • Figure 23 is a matching diagram of a decorative board and a shielding plate in an embodiment of the disclosure.
  • FIG. 24 is an exploded view of the shielding baffle in the embodiment of the disclosure.
  • 25 is a state diagram of the shielding baffle when the shelf is at the lowest position in the embodiment of the disclosure.
  • FIG. 26 is a state diagram of the shielding baffle when the shelf is at the highest position in the embodiment of the disclosure.
  • FIG. 27 is a front and back view of the decorative board and the shielding plate when the shelf is at the lowest position in the embodiment of the disclosure.
  • FIG. 28 is a front and back view of the decorative panel and the shielding plate when the shelf is in the middle position in the embodiment of the disclosure.
  • Fig. 29 is a front and back view of the decorative panel and the shielding plate when the shelf is at the highest position in the embodiment of the disclosure.
  • connection should be understood in a broad sense.
  • they can be fixed or detachable.
  • 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.
  • the specific meanings of the above-mentioned terms in the present disclosure can be understood in specific situations.
  • Fig. 1 is a refrigerator with an automatic lifting shelf in an embodiment of the disclosure
  • Fig. 2 is a schematic diagram of a driving mechanism of an automatic lifting shelf in an embodiment of the disclosure.
  • the mechanism for driving the lifting and lowering of the shelf includes a screw rod 33 and a nut 34.
  • the power part drives the screw rod 33 to rotate to realize the straight up and down movement of the nut 34; the nut 34 and the slider assembly 32
  • the housing 321 is connected 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 kind of automatic lifting device of the shelf is converted into linear motion by the motor driving the worm gear mechanism and the screw nut mechanism, 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.
  • FIG. 3 is a perspective view of a refrigerator with an automatic lifting shelf in an embodiment of the present disclosure; referring to FIG. 3, the refrigerator 1 has an approximately rectangular parallelepiped shape, and its appearance is composed of a storage room 100 defining a storage space and a plurality of doors arranged in the storage room 100 As defined at 200, the storage compartment 100 has an open box, which is formed by the storage compartment bladder, the storage compartment shell, and a foam layer located between the two.
  • 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 an independent storage space.
  • the freezer compartment 100A is defined at the lower side of the storage compartment 100 and may be selectively covered by the drawer-type freezer compartment door 200A.
  • the space defined above the freezing compartment 100A is partitioned into left and right sides to respectively define the refrigerating compartment 100B.
  • 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 includes a storage drawer 101 located on the lower side, and the storage drawer has two layers, which includes two dry and wet fresh-keeping drawers located on the lower layer, and a storage drawer located on the dry and wet fresh-keeping drawers.
  • a wider storage drawer for storing longer ingredients on the side; the storage room 100 also includes a shelf on the storage drawer 101; wherein the shelf includes a fixed shelf 102 and a lifting 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 can be adjusted 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 elevating floor frame 103 and the fixed floor frame 102 is not unique.
  • the fixed floor frame 102 may be located on the upper side, or the elevating floor frame 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. , It is convenient for users to use.
  • the shelf drive mechanism 300 includes a guide rail 301 fixed in the storage room 100, a support 302 slidably connected to the guide rail 301, and the elevating shelf 103 is connected to the The support 302 is fixedly connected; it also includes a motor assembly that drives the support 302 to lift.
  • the motor assembly includes a drive motor 303 and a deceleration mechanism 312. The drive motor 303 decelerates through the deceleration mechanism 312 and then drives the output shaft 313.
  • a traction rope 304 is wound on the driving output shaft 313, and the other end of the traction rope 304 is connected to the support 302; when the lifting shelf 103 needs to move down, the output shaft 3031 of the driving motor 303 is controlled Rotate in the first direction, the traction rope 304 extends, and the elevating floor frame 103 moves downward under the action of gravity; when the elevating floor frame 103 needs to move up, the output axis of the driving motor 303 is controlled to the second direction (The opposite direction to the first direction) rotates, the traction rope 304 is gradually wound, and the lifting shelf 103 moves upward. Since the transmission mode of the layer frame drive mechanism adopts the traction rope traction mode, it has a simple structure and a smaller space occupation than the conventional worm gear mechanism and the screw nut mechanism to convert 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; the up button is located on the upper side with an upward arrow mark, the stop button is located in the middle with a stop mark, and the down button is located in the middle. It has a downward arrow logo on the lower side.
  • 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 supporting member 302 are respectively provided, and the guide rail 301 is installed on the rear side wall of the storage room 100, and the supporting member 302 is connected to the supporting member 302.
  • the middle and rear positions of the lifting shelf 103 are fixedly connected; the driving motor 303 is arranged on the upper side of the guide rail 301. In this manner, the traction distance of the traction rope 304 is shorter, the structure is simpler, and the production cost is lower.
  • 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 be inclined.
  • the guide rails 301 are provided in two, which include a first guide rail 301A and a second guide rail 301B, respectively located at the On opposite sides of the storage room 100, a first support 302A is slidably connected to the first guide rail 301A, and a second support 302B is slidably connected to the second guide rail 301B; the driving motor 303 is disposed on the On the rear side of the storage room 100, a first pulley 305 is fixed on the drive output shaft 313; 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 rope 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 two traction ropes 304 are respectively fixed to the first pulley 306.
  • a support 302A and a second support 302B are attached.
  • two annular pulley grooves 3053 are formed on the wheel surface of the first pulley 305, and the traction ropes 304 of the left and right support members 302 are respectively wound around the pulley grooves 3053.
  • FIG. 6 is a diagram of the connection relationship between the traction rope, the first pulley and the motor mounting box in the embodiment of the disclosure
  • FIG. 7 is a schematic diagram of the fixed connection structure of the traction rope and the first pulley in the embodiment of the disclosure.
  • the fixing method of the traction rope 304 and the first pulley 305 is not unique.
  • An insertion groove 3051 for fixing the end of the traction rope is provided on the end surface.
  • the traction rope 304 includes a rope body 3041 and a limiting block 3042 located at one end of the rope body.
  • the limiting groove 3051A matched with the limiting block 3042 and the connecting groove 3051B matched with the rope body 3041, the outer end of the connecting groove 3051B extends to the pulley groove of the first pulley 305.
  • the traction rope adopts a steel rope structure
  • the cross-sectional area of the limiting block 3042 is larger than the cross-sectional area of the rope body 3041.
  • the limiting block 3042 adopts a rectangular block structure with a larger cross section, which is welded and connected to the rope body as a whole.
  • the limiting groove 3051A matches the shape and size of the limiting block 3042
  • the width of the connecting groove 3051B matches the diameter of the rope body 3041
  • the connecting groove 3051B is in the first
  • the end surface of the pulley 305 extends in an arc shape.
  • the driving motor 303 is installed in the motor mounting box 309, the driving output shaft 313 extends from the front side of the motor mounting box 309, and the first pulley 305 is fixedly connected to the driving output shaft 313 by screws.
  • FIG. 8 is a diagram of the connection relationship between the housing and the motor mounting box in the embodiment of the disclosure
  • FIG. 9 is a diagram of the cross-sectional connection relationship between the housing and the motor mounting box in the embodiment of the disclosure.
  • the outer side of the motor mounting box 309 is provided with a cover 310 covering the first pulley 305.
  • the cover 305 is threadedly connected to the motor mounting box 309, and the cover
  • the shell 310 is provided with a mounting hole through which the traction rope 304 is inserted. In this way, in the front-rear direction, the stop block 3041 of the traction rope 304 is respectively restricted by the front end surface of the cover 310 and the motor mounting box 309 and will not slip out.
  • Fig. 10 is a schematic diagram of a guide rail structure in an embodiment of the present disclosure.
  • 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 a ball 3013 located between the two;
  • the outer rail 3011 is fixed to the storage room 100 side wall,
  • the 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.
  • FIG. 11 is a schematic diagram of the structure of the lifting shelf in the embodiment of the disclosure.
  • the lifting shelf 103 includes a shelf body 1031 and a shelf support frame 1032 for supporting the shelf body 1031.
  • the shelf supports The frame 1032 is fixedly connected to both sides of the lower part of the shelf body 1031, the rear side of the partition support frame 1032 is provided with a hook 1033; the support member 302 is provided with a hanging hole 3021, as shown in FIG.
  • the hook 1033 of the board support frame 1032 is hooked on the hanging hole 3021 of the support 302. This hooking method is highly reliable, and at the same time, it is convenient for the user to disassemble and clean the lifting shelf 103.
  • FIG. 12 is a diagram of the connection relationship between the lifting shelf and the support in the embodiment of the disclosure.
  • a traction rope fixing member 307 is provided on the upper side of the supporting member 302, and the traction rope fixing member 307 is fixedly connected to the inner rail 3012.
  • the traction rope fixing member 307 and the 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 driving mechanism 300 further includes an emergency stop device for obstruction, which is used to control the driving 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 up.
  • 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.
  • FIG. 13 is a schematic diagram of the shelf drive mechanism with the emergency stop device in the embodiment of the disclosure under normal working conditions
  • FIG. 14 is the shelf drive mechanism with the emergency stop device in the embodiment of the disclosure when the shelf meets Schematic diagram in the case of resistance.
  • the downward emergency stop device Including 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 annular sleeve 6012 is sleeved on the traction rope section between the first pulley 305 and the second pulley 306, and the traction rope 304 is under normal conditions, as shown in FIG.
  • the detection arm 6011 of the micro switch 601 Since the lifting shelf 103 is in a tensioned state under the action of gravity, 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 is descending
  • 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 rotating, 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.
  • Fig. 15 is a circuit diagram of a power commutation signal with an emergency stop device in an embodiment of the disclosure. As shown in FIG. 15, it includes a power commutation chip 602, which is used to switch the polarity of the output terminal according to the signal input information.
  • the micro switch 601B is connected in series with each other and then connected in parallel with the diode 603, and then connected in series with the drive motor 303 and then connected to the two output terminals of the power commutation chip 602.
  • the anode of the diode 603 is connected to the drive motor 303.
  • the cathode of 603 is connected to the power supply 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 terminals 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 sent by the single-chip microcomputer, the power polarity of the two output terminals is reversed up and down (for example, from the upper end +24V and the lower end GND to the upper end GND and the lower end +24V).
  • the two output terminals of the power reversing chip 602 are the upper end +24V and the lower end GND.
  • the direction of the current 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 button information, it sends a power commutation signal to the power commutation chip 602 through the signal input terminal, and the power commutation chip 602 two output ends of the power commutation, becoming 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 up and down buttons can be used to freely control the rising and falling of the shelf.
  • the refrigerator further includes a shelf stroke control device, and the shelf stroke detection device is used to detect the moving stroke of the lifting shelf; the control device is used for The drive motor is controlled to start and stop according to the detection signal of the shelf travel detection device.
  • the drive motor 303, the deceleration mechanism 312 and the shelf stroke detection device are integratedly installed in the motor mounting box 309, and the motor mounting box 309 is extended with The drive output shaft 313 outputs the torque of the drive motor 303.
  • Fig. 16A is a rear schematic diagram of the motor mounting box in an open state in an embodiment of the disclosure
  • Fig. 16B is a front schematic diagram of the motor mounting box in an open state in an embodiment of the disclosure.
  • the shelf travel detection device includes: at least one travel switch installed in the motor mounting box 309, the travel switch is provided with a trigger part;
  • the cam 311 on the output shaft 313 respectively triggers the triggering part when the cam 311 rotates to a set position along with the forward or reverse rotation of the drive output shaft 313.
  • FIG. 17A is a schematic diagram of the stroke detection device cam triggering a first travel switch in an embodiment of the disclosure
  • FIG. 17B is a schematic diagram of a stroke detection device cam triggering a second travel switch in an embodiment of the disclosure.
  • the motor mounting box 309 includes a first travel switch 308A and a second travel switch 308B.
  • the first travel switch 308A is provided with a first trigger portion 3081A
  • the second travel switch 308B is provided with a second travel switch.
  • the second trigger part 3081B is provided with a first travel switch 3081A.
  • the cam 311 rotates forward to the set position to trigger the first trigger portion 3081A, trigger the travel switch 308A to turn on, and the drive motor 303 to stop;
  • the cam 311 reversely rotates to the set position to trigger the second trigger portion 3081B.
  • the limit switch 308 is triggered to be turned on, the driving motor 303 is stopped.
  • the motor mounting box 309 includes a front shell 3091 and a rear shell 3092, which are fixedly connected together by bolts after being clamped. As shown in FIG. 14, the first limit switch 308A and the second limit switch 308B are fixed on the rear housing 3092 by screws.
  • the reduction mechanism 312 is located between the output shaft 3031 of the drive motor 303 and the drive output shaft 313, and the reduction mechanism 312 includes a multi-stage gear transmission mechanism. Specifically, it can be set in two or three stages according to the reduction ratio. -Stage gear transmission mechanism.
  • a motor mounting groove 106 is formed on the rear wall of the storage room 100, and a motor reinforcement iron 104 is provided on the inner side of the rear wall of the storage room 100.
  • the motor mounting box 309 is fixed in the motor mounting slot 106.
  • the motor mounting box 309 is provided with connecting lugs, and the motor mounting box 309 is connected to the motor reinforcing iron 104 by bolts passing through the connecting lugs. .
  • the output shaft 3031 of the driving motor 303 is parallel to the rear wall of the storage compartment 100, which can further reduce the size of the motor mounting box 309 in the thickness direction.
  • FIG. 19 is a schematic cross-sectional view of the refrigerator compartment along the horizontal direction in the embodiment of the disclosure
  • FIG. 20 is another schematic cross-sectional view of the refrigerator compartment along the horizontal direction in the embodiment of the disclosure.
  • 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 two larger parts of the shelf drive mechanism 300 the drive motor 303 and the guide rail 301 are both embedded in the installation groove on the inner wall of the storage chamber, and the entire shelf drive mechanism 300 occupies a small space.
  • 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 elevating 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 compartment 100, wherein the air duct assembly includes an air duct.
  • the cover plate 401 and the air duct foam (not shown in the figure), the air duct foam is located on the back side of the air duct cover plate 401, and is buckled with the rear wall of the refrigerator compartment through the air duct cover plate 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 refrigerating compartment 100B through the plurality of 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 part 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 19 and 20.
  • 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 both 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.
  • FIG. 21 is a perspective view of the decorative board in the embodiment of the disclosure
  • FIG. 22 is a rear view of the decorative board in the embodiment of the disclosure
  • FIG. 23 is a mating diagram of the decorative board and the shielding plate in the embodiment of the disclosure.
  • 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 through 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 decorative board 501 is provided with a shielding plate 502 on the side away from the lifting shelf 103, and 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 a part of the first opening 5011.
  • the shielding plate 502 can shield most of the area of the first opening 5011.
  • the shielding plate 502 moves accordingly, and the covering plate 502 will 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, and it only needs to realize the longitudinal sliding of the shielding plate 502 thereon.
  • 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 along the longitudinal direction, and the shielding plates 502 are located in two rows. Row between the L-shaped guide ribs. In this manner, when the shielding plate 502 is installed, the L-shaped guide ribs can be moved outward to complete the installation, and 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. Opening 5011.
  • the shielding plate 502 includes a first shielding plate 5021 and a second shielding plate 5022 that are slidably connected to each other.
  • the second opening 50214 is provided on the first shielding plate 5021, and the second shielding plate 5022 is located on the first shielding plate 5021.
  • 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 upwards and cause the top wall of the storage room; when the lifting shelf 103 moves downwards, the lowest limit part restricts the second shielding At the lowest position of the plate 5022, the second shielding plate 5022 slides to the inner side of the first shielding plate 5021 to avoid the risk of the second shielding plate 5022 continuing to move downward and causing interference 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.
  • FIG. 25 is a state diagram of the shielding baffle when the shelf is at the lowest position in the embodiment of the disclosure
  • FIG. 26 is a state diagram of the shielding baffle when the shelf is at the highest position in the embodiment of the disclosure
  • the front and back views of the decorative panel and the shield at the lowest position
  • Figure 28 is the front and back views of the decorative panel and the shield at the intermediate position in the embodiment of the disclosure
  • Figure 29 is the front and back views of the decorative panel and the shield in the embodiment of the disclosure.
  • the front and back views of the decorative panel and the shielding plate At the highest position, the front and back views of the decorative panel and the shielding plate.
  • the second shielding plate 5022 is located on the lower side of the second opening 50214 as an example to introduce 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. 25,
  • 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 rib, 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 provided 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 26 for details.
  • the second opening 50214 is located at the lowermost side, the second shielding plate 5022 slides to the inner side of the first shielding plate 5021, and the second shielding
  • the lower end surface of the plate 5022 cooperates with the lower limit portion 5013, and the limit 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;
  • the lifting shelf 103 is in the middle position, as shown in FIG.
  • the second opening 50214 is in the middle position, and the first shielding plate 5021 slides relative to the second shielding plate 5022, so that the second shielding plate 5022 Located on the outer side of the first shielding plate 5021, the first stop 50212 cooperates with the second stop 50222 to limit the second shielding plate 5022 to the second position; the lifting shelf 103 When it is at the highest position, as shown in FIG. 29, the second opening 50214 is 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.

Abstract

本公开提供一种具有升降层架的冰箱，包括：储藏室，储藏室内设有升降层架以及层架驱动机构，其包括：安装于储藏室内壁上的驱动电机，其通过驱动输出轴输出扭矩；固定于储藏室内的导轨，滑动连接于导轨上的支撑件，升降层架与支撑件固定连接；以及固定连接于驱动输出轴上的第一滑轮，第一滑轮上缠绕有牵引绳，牵引绳的另一端与支撑件固定连接；其中，牵引绳包括绳体以及限位块，第一滑轮的端面上设有用于固定牵引绳端部的插接槽，插接槽包括限位槽以及连接槽，连接槽延伸至第一滑轮的滑轮面上。

Description

一种具有升降层架的冰箱
本公开要求在2019年08月26日提交中国专利局、申请号为201910791248.7、发明名称为“一种具有升降层架的冰箱”的中国专利申请、要求在2019年08月26日提交中国专利局、申请号为201921392757.4、发明名称为“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
本公开涉及智能家电领域，特别涉及一种具有升降层架的冰箱。
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。
发明内容
本公开提供了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：安装于所述储藏室内壁上的驱动电机，所述驱动电机通过驱动输出轴输出扭矩；固定于所述储藏室内的导轨，滑动连接于所述导轨上的支撑件，所述升降层架与所述支撑件固定连接；以及固定连接于所述驱动输出轴上的第一滑轮，所述第一滑轮上缠绕有牵引绳，所述牵引绳的另一端与所述支撑件固定连接；其中，所述牵引绳包括绳体以及位于绳体一侧端部的限位块，所述第一滑轮的端面上设有用于固定所述牵引绳端部的插接槽，所述插接槽包括与所述限位块配合的限位槽以及与所述绳体配合的连接槽，所述连接槽延伸至所述第一滑轮的滑轮面上。
附图说明
为了更清楚地说明本申请的技术方案，下面将对实施例中所需要使用的附图作简单地介 绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。此外，以下描述中的附图可以视作示意图，并非对本公开实施例所涉及的产品的实际尺寸的限制。
图1为本公开实施例中具有自动升降层架的冰箱；
图2为本公开实施例中自动升降层架的驱动机构示意图；
图3为本公开实施例中具有自动升降层架的冰箱立体图；
图4为本公开实施例中升降层架的层架驱动机构的立体结构示意图；
图5为本公开实施例中驱动电机安装结构示意图；
图6为本公开实施例中牵引绳、第一滑轮及电机安装盒的连接关系图；
图7为本公开实施例中牵引绳与第一滑轮的固定连接结构示意图；
图8为本公开实施例中罩壳与电机安装盒的连接关系图；
图9为本公开实施例中罩壳与电机安装盒的剖面连接关系图；
图10本公开实施例中导轨结构示意图；
图11为本公开实施例中升降层架的结构示意图；
图12为本公开实施例中升降层架与支撑件的连接关系图；
图13为本公开实施例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14为本公开实施例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15为本公开实施例中具有遇阻急停装置的电源换向信号线路图；
图16A为本公开实施例中电机安装盒打开状态下后向示意图；
图16B为本公开实施例中电机安装盒打开状态下正向示意图；
图17A为本公开实施例中行程检测装置凸轮触发第一行程开关的示意图；
图17B为本公开实施例中行程检测装置凸轮触发第二行程开关的示意图；
图18为本公开实施例中行程开关与电机安装盒的安装示意图；
图19为本公开实施例中冷藏室沿水平方向的剖切示意图；
图20为本公开实施例中冷藏室沿水平方向的另一剖切示意图；
图21为本公开实施例中装饰板的立体图；
图22为本公开实施例中装饰板的后视图；
图23为本公开实施例中装饰板与遮挡板的配合图；
图24为本公开实施例中遮挡板的爆炸图；
图25为本公开实施例中层架位于最低位置处时遮挡板的状态图；
图26为本公开实施例中层架位于最高位置处时遮挡板的状态图；
图27为本公开实施例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28为本公开实施例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29为本公开实施例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。
具体实施方式
下面将结合附图对本公开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公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，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，都属于本公开保护的范围。
在本公开的描述中，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公开和简化描述，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公开的限制。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。
在本公开的描述中，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公开中的具体含义。
此外，下面所描述的本公开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。
图1为本公开实施例中具有自动升降层架的冰箱；图2为本公开实施例中自动升降层架的驱动机构示意图。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。
图3是本公开实施例中具有自动升降层架的冰箱立体图；参照图3，冰箱1具有近似长方体形状，其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。
在一些实施方式中，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。
在一些实施方式中，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。
图4为本公开实施例中升降层架的层架驱动机构的立体结构示意图，图5为本公开实施例中驱动电机安装结构示意图。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上的支撑件302，所述升降层架103与所述支撑件302固定连接；还包括驱动所述支撑件302进行升降的电机组件，所述电机组件包括驱动电机303以及减速机构312，所述驱动电机303经过减速机构312减速后通过驱动输出轴313输出驱动扭矩，所述驱动输出轴313上缠绕牵引绳304，所述牵引绳304的另一端与所述支撑件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。
在一种实施方式中，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。
在一种实施方式中，所述层架驱动机构300中，导轨301以及支撑件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。
在另一种实施方式中，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，其包括第一导轨301A和第二导轨301B，分别位于所述储藏室100的相对两侧，所述第一导轨301A上滑动连接有第一支撑件302A，所述第二导轨301B上滑动连接有第二支撑件302B；所述驱动电机303设置于所述储藏室100的后侧，所述驱动输出轴313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306，两个所述牵引绳304的另一端分别固定于所述第一支撑件302A和第二支撑件302B上。
具体地，如图5所示，所述第一滑轮305的轮面上成型两个环形的滑轮槽3053，分别牵引左右两侧支撑件302的所述牵引绳304分别缠绕在所述滑轮槽3053内。
图6为本公开实施例中牵引绳、第一滑轮及电机安装盒的连接关系图；图7为本公开实施例中牵引绳与第一滑轮的固定连接结构示意图。所述牵引绳304与所述第一滑轮305的固定方式不唯一，为了方便所述牵引绳304的拆装，在一些实施方式中如图6、图7所示，所述第一滑轮305的端面上设有用于固定所述牵引绳端部的插接槽3051，所述牵引绳304包括绳体3041以及位于绳体一侧端部的限位块3042，所述插接槽3051包括与所述限位块3042配合的限位槽3051A以及与所述绳体3041配合的连接槽3051B，所述连接槽3051B的外侧端部延伸至所述第一滑轮305的滑轮槽上。
具体地，所述牵引绳采用钢丝绳结构，所述限位块3042的横截面积大于所述绳体3041 的横截面积。例如，如图6所示，所示限位块3042采用横截面较大的矩形块结构，其与所述绳体焊接连接成一体。
具体地，所述限位槽3051A与所述限位块3042的形状和大小匹配，所述连接槽3051B的宽度与所述绳体3041的直径尺寸匹配，所述连接槽3051B在所述第一滑轮305的端面上沿弧形延伸。
所述驱动电机303安装于电机安装盒309内，所述驱动输出轴313从所述电机安装盒309的前侧伸出，所述第一滑轮305通过螺钉与所述驱动输出轴313固定连接。
图8为本公开实施例中罩壳与电机安装盒的连接关系图；图9为本公开实施例中罩壳与电机安装盒的剖面连接关系图。如图8、图9所示，所述电机安装盒309外侧设有罩设于第一滑轮305上的罩壳310，所述罩壳305螺纹连接于所述电机安装盒309上，所述罩壳310上设有穿设所述牵引绳304的安装孔。这样，前后方向上，所述牵引绳304的限位块3041分别被所述罩壳310和电机安装盒309的前端面限位，不会滑出。
图10本公开实施例中导轨结构示意图。如图10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。图11为本公开实施例中升降层架的结构示意图。在一些实施方式中，如图11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，所述隔板支撑架1032后侧设有挂钩1033；所述支撑件302设有挂孔3021，如图8所示，所述隔板支撑架1032的所述挂钩1033钩挂于所述支撑件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。图12为本公开实施例中升降层架与支撑件的连接关系图。在一些实施方式中，如图12所示，所述支撑件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。
图13为本公开实施例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14为本公开实施例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。在一些实施方式中，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13、图14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13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14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15为本公开实施例中具有遇阻急停装置的电源换向信号线路图。如图15所示，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，所述层架行程检测装置用于检测所述升降层架的移动行程；控制装置用于根据所述层架行程检测装置的检测信号控制所述驱动电机启停。其中，为了便于组件化安装，所述驱动电机303、所述减速机构312与所述层架行程检测装置集成地安装于所述电机安装盒309内，所述电机安装盒309上伸出有用于输出所述驱动电机303扭矩的驱动输出轴313。
图16A为本公开实施例中电机安装盒打开状态下后向示意图；图16B为本公开实施例中电机安装盒打开状态下正向示意图。如图16A、图16B所示，所述层架行程检测装置包括：安装于所述电机安装盒309内的至少一个行程开关，所述行程开关上设有触发部；以及套设于所述驱动输出轴313上的凸轮311，所述凸轮311随所述驱动输出轴313的正向或反向转动至设定位置时分别触发所述触发部。
图17A为本公开实施例中行程检测装置凸轮触发第一行程开关的示意图；图17B为本公开实施例中行程检测装置凸轮触发第二行程开关的示意图。如图17A、图17B所示，所述电 机安装盒309内包括第一行程开关308A和第二行程开关308B，所述第一行程开关308A设置第一触发部3081A，第二行程开关308B设置第二触发部3081B。当所述升降层架103移动至设定最高位置时，所述凸轮311正向转动至设定位置触发所述第一触发部3081A，触发所述行程开关308A打开，所述驱动电机303停止；当所述升降层架103移动至设定最低位置时，所述凸轮311反向转动至设定位置触发所述第二触发部3081B。触发所述行程开关308打开，所述驱动电机303停止。
在一些实施方式中，如图16A及图16B所示，所述电机安装盒309包括前壳3091和后壳3092，两者卡接后通过螺栓固定连接在一起。如图14所示，所述第一行程开关308A和第二行程开关308B通过螺钉固定于所述后壳3092上。
所述减速机构312位于所述驱动电机303的输出轴3031与所述驱动输出轴313之间，所述减速机构312包括多级齿轮传动机构，具体地，其可以根据减速比设置两级或三级齿轮传动机构。
为了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，所述电机安装盒309固定于所述电机安装槽106内。
在一些实施方式中，如图8所示，所述电机安装盒309上设有连接支耳，所述电机安装盒309通过穿设于所述连接支耳的螺栓与所述电机加强铁104连接。所述驱动电机303的输出轴3031与所述储藏室100的后壁平行，这样可以进一步降低所述电机安装盒309在厚度方向的尺寸。
图19为本公开实施例中冷藏室沿水平方向的剖切示意图；图20为本公开实施例中冷藏室沿水平方向的另一剖切示意图。如图19、图20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。
在一些实施方式中，所述冰箱1为风冷冰箱，如图19、图20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19、图20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。
图21为本公开实施例中装饰板的立体图；图22为本公开实施例中装饰板的后视图；图23为本公开实施例中装饰板与遮挡板的配合图。如图21、图22、图23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22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。
在一些实施方式中，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24本公开实施例中遮挡板的爆炸图所示，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。
图25为本公开实施例中层架位于最低位置处时遮挡板的状态图；图26为本公开实施例中层架位于最高位置处时遮挡板的状态图；图27为本公开实施例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28为本公开实施例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29为本公开实施例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。在本公开的一些实施方式中，如图23-图29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25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26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24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25；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26。
所述升降层架103位于最低位置时，如图27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28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29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。
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公开创造的保护范围之中。

Claims (10)

  1. 一种具有升降层架的冰箱，其特征在于：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：
    安装于所述储藏室内壁上的驱动电机，所述驱动电机通过驱动输出轴输出扭矩；
    固定于所述储藏室内的导轨，滑动连接于所述导轨上的支撑件，所述升降层架与所述支撑件固定连接；
    以及固定连接于所述驱动输出轴上的第一滑轮，所述第一滑轮上缠绕有牵引绳，所述牵引绳的另一端与所述支撑件固定连接；
    其中，所述牵引绳包括绳体以及位于绳体一侧端部的限位块，所述第一滑轮的端面上设有用于固定所述牵引绳端部的插接槽，所述插接槽包括与所述限位块配合的限位槽以及与所述绳体配合的连接槽，所述连接槽的自由端延伸至所述第一滑轮用于缠绕所述牵引绳的滑轮槽上。
  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：所述限位块的横截面积大于所述绳体的横截面积。
  3. 根据权利要求2所述的具有升降层架的冰箱，其特征在于：所述限位槽与所述限位块的形状和大小匹配，所述连接槽的宽度与所述绳体的直径尺寸匹配，所述连接槽在所述第一滑轮的端面上沿弧形延伸。
  4. 根据权利要求1-3任一所述的具有升降层架的冰箱，其特征在于：所述导轨包括分别固定于所述储藏室相对两侧的第一导轨和第二导轨，所述第一导轨上滑动连接有第一支撑件，所述第二导轨上滑动连接有第二支撑件；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的插接槽上，两个所述牵引绳的中间位置分别绕过位于所述储藏室两侧的所述第二滑轮，所述牵引绳的另一端分别固定于所述第一支撑件和第二支撑件上。
  5. 根据权利要求4所述的具有升降层架的冰箱，其特征在于：所述第一滑轮包括套设于所述驱动输出轴上的轴套本体以及三个径向延伸的挡片，相邻所述挡片用于将两个所述牵引绳隔开，所述插接槽设置于位于外侧的两个所述挡片上。
  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：所述驱动电机安装于电机安装盒内，所述驱动输出轴从所述电机安装盒的前侧伸出，所述第一滑轮通过螺钉与所述驱动输出轴固定连接。
  7. 根据权利要求6所述的具有升降层架的冰箱，其特征在于：所述电机安装盒外侧设有罩设 于第一滑轮上的罩壳，所述罩壳螺纹连接于所述电机安装盒上，所述罩壳上设有穿设所述牵引绳的安装孔。
  8. 根据权利要求1所述的具有升降层架的冰箱，其特征在于：所述电机安装盒内还包括层架行程检测装置，所述层架行程检测装置用于检测所述升降层架的移动行程；控制装置，所述控制装置用于根据所述层架行程检测装置的检测信号控制所述驱动电机启停。
  9. 根据权利要求9所述的具有升降层架的冰箱，其特征在于：所述层架行程检测装置包括：安装于所述电机安装盒内的至少一个行程开关，所述行程开关上设有触发部；以及套设于所述驱动输出轴上的凸轮，所述凸轮随所述驱动输出轴的正向或反向转动至设定位置时分别触发所述触发部。
  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：所述电机安装盒内还包括减速机构，所述减速机构位于所述驱动电机的输出轴与所述驱动输出轴之间，所述减速机构包括多级齿轮传动机构。
PCT/CN2020/096948 2019-08-26 2020-06-19 一种具有升降层架的冰箱 WO2021036434A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201921392757.4 2019-08-26
CN201910791248.7A CN112432416A (zh) 2019-08-26 2019-08-26 一种具有升降层架的冰箱
CN201910791248.7 2019-08-26
CN201921392757.4U CN210980489U (zh) 2019-08-26 2019-08-26 一种具有升降层架的冰箱

Publications (1)

Publication Number Publication Date
WO2021036434A1 true WO2021036434A1 (zh) 2021-03-04

Family

ID=74684425

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/096948 WO2021036434A1 (zh) 2019-08-26 2020-06-19 一种具有升降层架的冰箱

Country Status (1)

Country Link
WO (1) WO2021036434A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5714419A (en) * 1980-06-30 1982-01-25 Nippon Steel Weld Prod & Eng Co Ltd Method of setting end part of welding wire to winding frame
CN104925591A (zh) * 2014-03-21 2015-09-23 博世力士乐（北京）液压有限公司 一种线缆固定机构及固定线缆的方法
CN106586706A (zh) * 2015-10-16 2017-04-26 江阴市华硕机械制造有限公司 钢丝绳绕绳器
CN106586714A (zh) * 2015-10-16 2017-04-26 江阴市华硕机械制造有限公司 钢丝绳绕绳器
CN106642961A (zh) * 2016-12-01 2017-05-10 Tcl集团股份有限公司 一种冰箱搁架升降装置及冰箱
CN208154913U (zh) * 2018-04-13 2018-11-27 江苏雷利电机股份有限公司 一种冰箱搁物架用升降装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5714419A (en) * 1980-06-30 1982-01-25 Nippon Steel Weld Prod & Eng Co Ltd Method of setting end part of welding wire to winding frame
CN104925591A (zh) * 2014-03-21 2015-09-23 博世力士乐（北京）液压有限公司 一种线缆固定机构及固定线缆的方法
CN106586706A (zh) * 2015-10-16 2017-04-26 江阴市华硕机械制造有限公司 钢丝绳绕绳器
CN106586714A (zh) * 2015-10-16 2017-04-26 江阴市华硕机械制造有限公司 钢丝绳绕绳器
CN106642961A (zh) * 2016-12-01 2017-05-10 Tcl集团股份有限公司 一种冰箱搁架升降装置及冰箱
CN208154913U (zh) * 2018-04-13 2018-11-27 江苏雷利电机股份有限公司 一种冰箱搁物架用升降装置

Similar Documents

Publication Publication Date Title
US11243024B2 (en) Refrigerator with lifting shelf
WO2020181928A1 (zh) 一种具有升降层架的冰箱
WO2021036435A1 (zh) 一种具有升降层架的冰箱
CN210070335U (zh) 一种具有升降层架的冰箱
CN112240666A (zh) 一种具有升降层架的冰箱
CN210532785U (zh) 一种具有升降层架的冰箱
WO2021169091A1 (zh) 一种冰箱
CN111692795B (zh) 一种冰箱
CN112240663A (zh) 一种具有升降层架的冰箱
CN112444042A (zh) 一种具有升降层架的冰箱
CN111998587A (zh) 一种具有升降层架的冰箱
WO2021036434A1 (zh) 一种具有升降层架的冰箱
CN210688862U (zh) 一种具有升降层架的冰箱
CN210688861U (zh) 一种具有升降层架的冰箱
CN112240667A (zh) 一种具有升降层架的冰箱
CN210532784U (zh) 一种具有升降层架的冰箱
CN210772940U (zh) 一种具有升降层架的冰箱
CN210772941U (zh) 一种具有升降层架的冰箱
CN210772938U (zh) 一种具有升降层架的冰箱
CN210688863U (zh) 一种具有升降层架的冰箱
CN111692796B (zh) 一种具有升降层架的冰箱
CN111998589A (zh) 一种具有升降层架的冰箱
CN210772939U (zh) 一种具有升降层架的冰箱
CN210980489U (zh) 一种具有升降层架的冰箱
CN112229129A (zh) 冰箱及其控制方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20856027

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20856027

Country of ref document: EP

Kind code of ref document: A1