WO2021036435A1 - Réfrigérateur ayant une étagère réglable en hauteur - Google Patents

Réfrigérateur ayant une étagère réglable en hauteur Download PDF

Info

Publication number
WO2021036435A1
WO2021036435A1 PCT/CN2020/096951 CN2020096951W WO2021036435A1 WO 2021036435 A1 WO2021036435 A1 WO 2021036435A1 CN 2020096951 W CN2020096951 W CN 2020096951W WO 2021036435 A1 WO2021036435 A1 WO 2021036435A1
Authority
WO
WIPO (PCT)
Prior art keywords
shelf
refrigerator
lifting shelf
lifting
pulley
Prior art date
Application number
PCT/CN2020/096951
Other languages
English (en)
Chinese (zh)
Inventor
王仁华
张树栋
张秋菊
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 CN201910816671.8A external-priority patent/CN112444042A/zh
Priority claimed from CN201921432625.XU external-priority patent/CN210625076U/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
Priority to EP20851364.8A priority Critical patent/EP4023966A4/fr
Priority to JP2021508279A priority patent/JP7020584B2/ja
Priority to US17/183,656 priority patent/US11243024B2/en
Publication of WO2021036435A1 publication Critical patent/WO2021036435A1/fr

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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • 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
    • 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
    • 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
    • F25D2325/00—Charging, supporting or discharging the articles to be cooled, not provided for in other groups of this subclass
    • F25D2325/021—Shelves with several possible configurations

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.
  • a refrigerator with a lifting shelf comprising: a storage room provided with a lifting shelf, a shelf driving mechanism for driving the lifting shelf to move up and down, and a maximum moving stroke for detecting the lifting shelf
  • the layer frame stroke detection device wherein the layer frame drive mechanism includes a drive motor and a gear transmission mechanism, the gear transmission mechanism includes at least one set of transmission gears, the drive motor outputs torque by driving an output shaft, and the drive
  • a first pulley is provided on the output shaft;
  • the other end of the traction rope is fixedly connected to the support;
  • the strut detection device of the layer frame includes: a travel switch, and a trigger part is provided on the travel switch; a linkage member, the linkage members are respectively Cooperating with the travel switch and the transmission gear, a positioning portion is provided on the inner wheel surface of the transmission gear, and
  • Figure 1 is a refrigerator with an automatic lifting shelf provided by an embodiment of the present disclosure
  • Figure 2 is a schematic diagram of a driving mechanism for an automatic lifting shelf provided by an 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
  • 16A is a schematic structural diagram of the motor mounting box in an open state in an embodiment of the disclosure.
  • 16B is a cross-sectional view of the motor mounting box in the embodiment of the disclosure.
  • FIG. 17A is a schematic structural diagram of the travel switch in an untriggered state in an embodiment of the disclosure.
  • FIG. 17B is a schematic diagram of the structure in a state where the limit switch is triggered 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.
  • FIG. 23 is a matching diagram of the decorative board and the shielding plate in the 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 provided by an embodiment of the present disclosure
  • Fig. 2 is a schematic diagram of a driving mechanism of an automatic lifting shelf provided by an embodiment of the present disclosure.
  • the mechanism for driving the lifting and lowering of the shelf includes a screw 33 and a nut 34.
  • the power part drives the screw 33 to rotate to realize the straight up and down movement of the nut 34; the nut 34 and the housing of the slider assembly 32
  • the body 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 passes through a worm gear
  • the transmission 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 approximate 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 by 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 in the embodiment of the present disclosure 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, as well as two dry and wet fresh-keeping drawers located on the lower layer.
  • the storage room 100 also includes a shelf on the storage drawer 101; wherein the shelf includes a fixed shelf 102 and a lift Shelf 103;
  • the fixed shelf 102 is a shelf that 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 lifting shelf 103 and the support
  • the member 302 is fixedly connected; it also includes a motor assembly that drives the supporting member 302 to lift.
  • the motor assembly includes a drive motor 303 and a gear transmission mechanism.
  • the drive motor 303 is decelerated by the gear transmission mechanism and is driven by the output shaft 313.
  • the drive output shaft 313 is wound with a traction rope 304, 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 drive motor 303 is controlled to move to the first Rotating in one 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 upward, the output axis of the driving motor 303 is controlled to the second direction (the first The opposite direction of one 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 lift 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, and the stop button is located in the middle with a stop mark, and the down button is located in the middle. 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.
  • the shelf drive mechanism 300 a guide rail 301 and a support 302 are respectively provided, the guide rail 301 is installed on the rear side wall of the storage room 100, and the support 302 It 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 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 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;
  • 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, two One ends of the 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 two traction ropes 304 are respectively fixed to the On the first support 302A and the second support 302B
  • 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.
  • the fixing method of the traction rope 304 and the first pulley 305 is not unique.
  • the end surface of the first pulley 305 An insertion groove 3051 for fixing the end of the traction rope is provided.
  • the traction rope 304 includes a rope body 3041 and a limit block 3042 located at one end of the rope body.
  • the limiting groove 3051A matched with the position 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.
  • 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.
  • the traction rope adopts a steel wire rope structure
  • the cross-sectional area of the stop 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 same shape and size.
  • the end surface of the first 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, and the shelf support frame 1032 is fixedly connected to the shelf body 1031.
  • the rear side of the partition support frame 1032 is provided with a hook 1033;
  • the support 302 is provided with a hanging hole 3021, as shown in FIG. 8, the hook 1033 of the partition 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 present disclosure.
  • the upper side of the support 302 is provided with a traction rope fixing member 307,
  • 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 elevating layer frame 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 emergency stop device in order to provide an emergency stop device that can more accurately control the lifting shelf 103 to stop when encountering resistance, as shown in FIG. 13 and FIG.
  • the emergency stop device includes a micro switch 601 which is fixed on the rear wall of the refrigerating compartment 100B.
  • the detection arm 6011 of the micro switch 601 is provided with an annular sleeve 6012 which is sleeved on the traction On the rope 304, preferably, the annular 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. 13 As shown, because the lifting shelf 103 is under tension 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 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 closed 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.
  • 15 is a circuit diagram of the power commutation signal of the emergency stop device in case of obstruction; 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 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 travel detection device 700, which is used to detect the highest and lowest movement of the lifting shelf. Stroke; the control device is used to control the start and stop of the drive motor according to the detection signal of the shelf stroke detection device 700.
  • the drive motor 303, the gear transmission mechanism and the shelf travel detection device 700 are integratedly installed in the motor mounting box 309, and the motor mounting box 309 extends It is a drive output shaft 313 that outputs the torque of the drive motor 303.
  • the gear transmission mechanism may be provided with a two-stage or three-stage gear transmission mechanism according to the reduction ratio, and the gear transmission mechanism may be provided with a plurality of transmission gears 312.
  • FIG. 16A is a schematic structural diagram of the motor mounting box in an open state in an embodiment of the disclosure
  • FIG. 16B is a cross-sectional view of the motor mounting box in an embodiment of the disclosure.
  • the shelf travel detection device 700 includes: a travel switch 701, the travel switch 701 is provided with a trigger portion 7011; a linkage 702, the linkage 702 and the travel switch respectively 701 cooperates with the transmission gear 312, the inner wheel surface of the transmission gear 312 is provided with a positioning portion 3121, and the driving motor 303 drives the transmission gear 312 to rotate until the positioning portion 3121 is in contact with the linkage 702 At this time, the linkage 702 triggers the trigger portion 7011 of the travel switch 701.
  • the transmission gear 312 may be any one of the gear transmission mechanisms that rotates no more than one revolution within the maximum stroke range of the lifting shelf 103, but is subject to the size of the stroke switch and the motor.
  • the arrangement of the mounting box is restricted.
  • the travel switch is matched with the last-stage output gear where the drive output shaft is located to realize the triggering of the highest and lowest travel of the shelf.
  • the linkage member 702 includes a central hinge portion 7021, which is swingably connected to the motor mounting box through the central hinge portion 7021, and the linkage member 702 further includes a first extension extending outward from the central hinge portion 7021.
  • the arm 7022, the second extension arm 7023 and the third extension arm 7024, the second extension arm 7023 and the third extension arm 7024 are located on the same straight line, the first extension arm 7022 and the second extension arm 7023 and the first extension arm 7023 are located on the same straight line.
  • the three extension arms 7024 are vertically arranged, and the linkage member 702 is T-shaped as a whole.
  • the first extension arm 7022 is used to cooperate with the transmission gear 312
  • the second extension arm 7023 is used to cooperate with the travel switch 701
  • the linkage 702 is between the motor mounting box 309
  • a return spring 703 is provided, and the elastic force of the return spring 703 is suitable for pressing the linkage 702 against the trigger portion 7011 of the travel switch 701.
  • a positioning protrusion 7023A is formed on the opposite surface of the second extension arm 7023 and the mating surface of the travel switch 701, and one end of the return spring 703 is sleeved on the positioning protrusion 7023A, so The other end of the return spring 703 is sleeved on the convex rib on the motor mounting box 309.
  • the positioning portion 3121 is a groove formed on the inner wheel surface of the transmission gear 312.
  • the linkage member 702 swings around the central hinge part 7021 until the second extension arm 7023 abuts on the trigger part 7011, so that the travel switch 701 is triggered; as shown in FIG. 17B, the first extension arm 7022 is connected to the trigger part 7011.
  • the linkage 702 swings around the middle hinge portion 7021 until the second extension arm 7023 is separated from the trigger portion 7011.
  • Two layer frame stroke detection devices are provided, and the two layer frame stroke detection devices are respectively triggered when the lifting shelf moves to the highest position and the lowest position.
  • the control device controls the driving motor 303 Stop, the lifting shelf 103 stops moving;
  • the transmission gear 312 rotates in a second direction opposite to the first direction, the lifting shelf 103 moves downward, when the other stroke detection device Triggered by the transmission gear 312, the control device controls the driving motor 303 to stop, and the lifting shelf 103 stops moving.
  • 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 The air duct cover 401 and the 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 passes through the air duct cover 401 and the rear wall of the refrigerator compartment With a snap connection, 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 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 Figs.
  • 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 an embodiment of the present disclosure
  • FIG. 22 is a rear view of the decorative board in an embodiment of the present disclosure
  • FIG. 23 is a mating diagram of the decorative board and a shielding board in an embodiment of the present 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 To prevent the two from contacting, therefore, 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.
  • 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 protrudes 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 plate 502 protrudes upwards too much to top the top wall of the storage room; because, as shown in FIG.
  • the shielding plate 502 includes mutually slidingly connected The first shielding plate 5021 and the second shielding plate 5022, the second opening 50214 is disposed 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 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. 24 is an exploded view of the shielding plate in the embodiment of the disclosure
  • FIG. 25 is a state diagram of the shielding plate when the shelf is at the lowest position in the embodiment of the disclosure
  • FIG. 26 is the shielding plate when the shelf is at the highest position in the embodiment of the disclosure
  • Figure 27 is the front and back views of the decorative panel and the shield when the shelf is at the lowest position in the embodiment of the disclosure
  • Figure 28 is the front and back views of the decorative panel and the shield when the shelf is at the intermediate position in the embodiment of the disclosure
  • Figure 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
  • 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. 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.
  • Figures 27-29 are structural diagrams of the front and rear sides of the decorative panel 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 27 , 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, 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 located in 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. 29, 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.

Landscapes

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

Abstract

La présente invention concerne un réfrigérateur ayant une étagère réglable en hauteur, comprenant : une étagère réglable en hauteur, un mécanisme d'entraînement d'étagère et un dispositif de détection de mouvement d'étagère. Le mécanisme d'entraînement d'étagère comprend : un moteur d'entraînement et un mécanisme de transmission à engrenage, le mécanisme de transmission à engrenage comprenant au moins un ensemble d'engrenages de transmission, le moteur d'entraînement délivrant un couple au moyen d'un arbre de sortie d'entraînement, l'arbre de sortie d'entraînement étant pourvu d'une première poulie ; un rail de guidage, relié de manière coulissante à un support sur le rail de guidage, l'étagère réglable en hauteur étant reliée de manière fixe au support ; et un câble de traction disposé autour de la première poulie, une extrémité du câble de traction étant reliée de manière fixe au support. Le dispositif de détection de mouvement d'étagère comprend : un commutateur de mouvement, un élément de déclenchement étant prévu sur le commutateur de mouvement ; et un élément de liaison, coopérant respectivement avec le commutateur de mouvement et les engrenages de transmission, un élément de fixation de position étant disposé sur une surface d'engrenage interne de l'engrenage de transmission, et lorsque le moteur d'entraînement entraîne l'engrenage de transmission à tourner vers l'élément de fixation de position et en contact avec l'élément de liaison, l'élément de liaison déclenche l'élément de déclenchement du commutateur de mouvement.
PCT/CN2020/096951 2019-08-30 2020-06-19 Réfrigérateur ayant une étagère réglable en hauteur WO2021036435A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20851364.8A EP4023966A4 (fr) 2019-08-30 2020-06-19 Réfrigérateur ayant une étagère réglable en hauteur
JP2021508279A JP7020584B2 (ja) 2019-08-30 2020-06-19 昇降式ラック付き冷蔵庫
US17/183,656 US11243024B2 (en) 2019-08-30 2021-02-24 Refrigerator with lifting shelf

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201910816671.8A CN112444042A (zh) 2019-08-30 2019-08-30 一种具有升降层架的冰箱
CN201921432625.XU CN210625076U (zh) 2019-08-30 2019-08-30 一种具有升降层架的冰箱
CN201910816671.8 2019-08-30
CN201921432625.X 2019-08-30

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/183,656 Continuation US11243024B2 (en) 2019-08-30 2021-02-24 Refrigerator with lifting shelf

Publications (1)

Publication Number Publication Date
WO2021036435A1 true WO2021036435A1 (fr) 2021-03-04

Family

ID=74684095

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/096951 WO2021036435A1 (fr) 2019-08-30 2020-06-19 Réfrigérateur ayant une étagère réglable en hauteur

Country Status (3)

Country Link
EP (1) EP4023966A4 (fr)
JP (1) JP7020584B2 (fr)
WO (1) WO2021036435A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113266989A (zh) * 2021-04-21 2021-08-17 合肥艾普科技有限公司 一种冰箱门磁敏开关及其控制安装盒
CN113899151A (zh) * 2021-10-12 2022-01-07 珠海格力电器股份有限公司 一种冰箱隔架和具有该冰箱隔架的冰箱及其控制方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11585595B2 (en) 2020-07-14 2023-02-21 Samsung Electronics Co., Ltd. Refrigerator

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
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
CN210625076U (zh) * 2019-08-30 2020-05-26 海信（山东）冰箱有限公司 一种具有升降层架的冰箱

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102591763B1 (ko) * 2016-11-04 2023-10-23 삼성전자주식회사 냉장고

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
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
CN210625076U (zh) * 2019-08-30 2020-05-26 海信（山东）冰箱有限公司 一种具有升降层架的冰箱

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4023966A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113266989A (zh) * 2021-04-21 2021-08-17 合肥艾普科技有限公司 一种冰箱门磁敏开关及其控制安装盒
CN113899151A (zh) * 2021-10-12 2022-01-07 珠海格力电器股份有限公司 一种冰箱隔架和具有该冰箱隔架的冰箱及其控制方法

Also Published As

Publication number Publication date
EP4023966A4 (fr) 2023-08-23
EP4023966A1 (fr) 2022-07-06
JP2022501562A (ja) 2022-01-06
JP7020584B2 (ja) 2022-02-16

Similar Documents

Publication Publication Date Title
CN210625076U (zh) 一种具有升降层架的冰箱
WO2020181928A1 (fr) Réfrigérateur doté d'une étagère de levage
WO2021036435A1 (fr) Réfrigérateur ayant une étagère réglable en hauteur
CN210070335U (zh) 一种具有升降层架的冰箱
CN111692795B (zh) 一种冰箱
CN210532785U (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
WO2021169091A1 (fr) Réfrigérateur
WO2022193779A1 (fr) Dispositif de levage et armoire de rangement
CN112444042A (zh) 一种具有升降层架的冰箱
CN112240663A (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 (fr) Réfrigérateur ayant une étagère de levage
CN210688861U (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
CN210532784U (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
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
CN210772939U (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
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
CN210980489U (zh) 一种具有升降层架的冰箱

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2021508279

Country of ref document: JP

Kind code of ref document: A

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

Ref document number: 20851364

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020851364

Country of ref document: EP

Effective date: 20220329