WO2021096090A2 - Appareil élévateur intelligent de dispositif d'installation à grande hauteur d'élévation et son procédé de commande - Google Patents

Appareil élévateur intelligent de dispositif d'installation à grande hauteur d'élévation et son procédé de commande Download PDF

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Publication number
WO2021096090A2
WO2021096090A2 PCT/KR2020/014442 KR2020014442W WO2021096090A2 WO 2021096090 A2 WO2021096090 A2 WO 2021096090A2 KR 2020014442 W KR2020014442 W KR 2020014442W WO 2021096090 A2 WO2021096090 A2 WO 2021096090A2
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WO
WIPO (PCT)
Prior art keywords
high place
installation device
power
place installation
power abnormality
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Application number
PCT/KR2020/014442
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English (en)
Korean (ko)
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WO2021096090A3 (fr
Inventor
신정훈
Original Assignee
주식회사 릴테크
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Application filed by 주식회사 릴테크 filed Critical 주식회사 릴테크
Priority to CN202080075987.7A priority Critical patent/CN114641446B/zh
Publication of WO2021096090A2 publication Critical patent/WO2021096090A2/fr
Publication of WO2021096090A3 publication Critical patent/WO2021096090A3/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/485—Control devices automatic electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54—Safety gear

Definitions

  • the present invention relates to a smart elevation installation device elevating device and a control method thereof, and more particularly, a smart elevation installation device elevating device having a structure to elevate the elevation installation apparatus installed at a high place by winding or unwinding a wire rope on a drum, and the same. It relates to the control method.
  • high place lighting is installed on the ceiling of hotel lobby and factory, gymnasium, and street lamps on roads.
  • Sodium bulbs and mercury bulbs are mainly installed in such high place lightings, and the life of these high place lightings is limited to about 5000 to 6000 hours, so they must be replaced periodically.
  • high place lighting installed in service companies such as hotel lobby and wedding halls needs to be replaced with periodic cleaning work for the exterior and exhibition effect.
  • a wire rope is fixed to the lighting lamp, and the wire rope is wound on a pulley fixed to the ground through the ceiling.
  • a manual lifting device for high place lighting that lifts and lowers the high place lighting by manipulating the connected handlebar, and an automatic lifting device for the high place lighting using a driving motor instead of the handle bar have been proposed.
  • the automatic elevating device of an aerial lighting lamp includes a socket part (body) fixed at a predetermined height on the ceiling side, a light fixture (elevating body) that is inserted into the socket and connected to a contact point and mounted with a light bulb on the lower side, and the light fixture.
  • the wire rope is provided in a state where one end is fixed to the upper side and the other end is wound by a predetermined length on a drum placed at a certain position of the socket part, and the wire rope is automatically unwound and wound on the drum at the user's selection. It has a drive motor for raising and lowering the light fixture.
  • a technique related to the configuration of unwinding and winding a wire rope in an automatic lifting device for a high place lighting lamp is disclosed in, for example, Korean Patent No. 10-1056847.
  • the high place lighting lifting device of Korean Patent No. 10-1056847 is pressed by contact with the sensing plate material pushed outward of the drum as the layer of wire rope wrapped around the drum increases, and when the sensing plate material is pushed to the set position. It includes a drive switch for stopping the operation of the drive means for rotating the drum by operation, and discloses a structure in which the drum is arranged to be placed in an erect state in the main body.
  • An object of the present invention is to provide a smart high place installation device lifting device and a control method thereof having a structure capable of solving the problem of turning off the entire electric circuit again by the device.
  • the present invention is provided with a drum on which a wire rope can be wound and a main body in which a driving motor providing rotational force to the drum is installed, and a device coupling part which is suspended from the wire rope and mounted at a lower portion thereof.
  • a smart high place installation device elevating device comprising a microcomputer for controlling the power, (a) supplying power to a plurality of high place installation devices by the on (On) of the circuit breaker; (b) automatically switching the circuit breaker to an off state when a power abnormality occurs in at least one of the plurality of aerial installation devices; (c) immediately after the circuit breaker is turned off, the microcomputer checks whether or not there is a power failure of the aerial installation device; (d) storing power abnormality information in the microcomputer of the elevator device when it is recognized as a power abnormality state as a result of the check; (e) checking power abnormality information of the aerial installation device stored in the microcomputer when the circuit breaker is turned on again; And (f) turning off power to a height installation device in which power abnormality
  • a plurality of the micoms are provided to correspond one-to-one to the plurality of high place installation devices, and in step (c), the micom checks whether the corresponding high place installation device is shorted, and in step (f), As a result of the above confirmation, the aerial installation device corresponding to the microcomputer in which the power abnormality information including the short-circuit state is stored, shuts off the power by turning off the relay, and at the same time, the complaint corresponding to the microcomputer without the power abnormality information is stored For the installed device, the relay can be turned on to supply power.
  • a plurality of micoms are provided to correspond one-to-one to the plurality of high place installation devices, and in step (b), when the breaker is turned on again, the breaker automatically restarts due to the power abnormality. It is switched to the off state, and in step (c), the micom may recognize a power abnormality state by checking whether the corresponding high place installation device is overvoltage.
  • a condenser capable of supplying emergency power to the micom is connected to the micom, and in step (d), the micom is operated by the condenser immediately after the circuit breaker is turned off to check whether the high place installation device has a power abnormality. And, the power error information can be stored in the memory.
  • the high place installation device is at least one selected from a lighting lamp, a ventilation fan, and a CCTV camera.
  • a drum installed at a predetermined height and wound around a wire rope, and a main body installed with a driving motor providing rotational force to the drum;
  • An elevating body suspended from the wire rope and mounted at a lower portion thereof;
  • a coupling part provided with a receiving structure located under the main body and having an open lower part to be coupled to the lifting body, and a stopper installed on the receiving structure to provide a fall prevention function of the lifting body;
  • An upper contact part and a lower contact part respectively installed on the main body and the lifting body and contacting each other when the lifting body is raised by the winding of the wire rope and coupled to the main body;
  • a power abnormality detection unit for detecting whether or not an electric power abnormality of the aerial device is installed; And immediately after the circuit breaker is turned off, the power abnormality information is checked by checking whether there is a power abnormality through the power abnormality detection unit.
  • a smart high place installation device including a microcomputer that cuts off the power to the aerial installation device in which the information is stored and supplies power to the aerial installation device in which the power abnormality information is not stored.
  • the present invention it is possible to solve the problem that the entire electric circuit is repeatedly turned off every time the breaker is turned on again by recognizing a specific high place installation device in a power abnormal state among a plurality of aerial installation devices by the microcomputer and performing power supply cutoff control. have.
  • FIG. 1 is a partial cross-sectional view illustrating the configuration of a smart high place installation device lifting device to which a control method of a smart high place installation device lifting device according to a preferred embodiment of the present invention is applied.
  • FIG. 2 is a block diagram showing a functional configuration for performing a control method of a smart height installation device lifting device according to a preferred embodiment of the present invention.
  • 3 to 5 are flowcharts illustrating a process in which a method of controlling a smart height installation device lifting device according to a preferred embodiment of the present invention is performed.
  • FIG. 6 is a side view showing an application example of a smart high place installation device lifting device according to an embodiment of the present invention.
  • FIG. 7 is a side view showing a state in which the aerial installation device is lowered in FIG. 6.
  • FIG. 8 is a side view showing an application example of a smart height installation device lifting device according to another embodiment of the present invention.
  • FIG. 9 is a side view showing a state in which the high place installation device is lowered in FIG. 8.
  • FIG. 1 is a partial cross-sectional view showing a configuration example of a smart height installation device lifting device to which a control method of a smart height installation device lifting device according to a preferred embodiment of the present invention is applied
  • FIG. 2 is a smart high place according to a preferred embodiment of the present invention. It is a block diagram showing a functional configuration for performing the control method of the installation device lifting device.
  • the smart high place installation device elevating device the body 100 is installed at a height position of a predetermined height and the drum 101 is installed therein, and a couple located under the body 100
  • a lifting body 200 provided with a ring part 104 and a device coupling part 204 capable of mounting an aerial installation device 10 at the lower end and suspended from the wire rope 1 wound around the drum 101, and the lifting body 200
  • the upper contact part 109 and the lower contact part 202 contact each other, and power for the operation and lifting and lowering of the high place installation device 10
  • Power supply supplied to the high place installation device 10 is turned on/off based on the power abnormality information of the high place installation device 10 stored in the circuit breaker 301 having the opening and closing function of the memory 300b and the memory 300b.
  • the main body 100 is installed at a height of a predetermined height above a supporting structure such as a building ceiling or a street light.
  • a mounting member 111 made of, for example, ring bolts is provided on the upper end of the main body 100.
  • a predetermined support bracket (not shown) that can be coupled to a predetermined H-beam provided on the ceiling of a building may be connected to the main body 100.
  • the main body 100 is provided with a drum 101 on which the wire rope 1 can be wound and a driving motor 113 for providing rotational force in the forward and reverse directions to the drum 101.
  • the furnace is preferably a geared motor (Geared motor) is employed.
  • the drum 101 is a cylindrical bobbin capable of winding and unwinding the wire rope 1.
  • the drum 101 is preferably installed in the main body 100 so as to be rotatable in a state in which the hollow is laid to open substantially in the vertical direction with respect to the ground.
  • the drum 101 it is also possible for the drum 101 to be arranged erect in the body.
  • a coupling part 104 having a hollow receiving structure 105 is provided at a lower portion of the main body 100.
  • the coupling part 104 is located under the main body 100 and is mediated so that it can be coupled to the correct position of the main body 100 when the lifting body 200 is raised to a predetermined point by the hoisting of the wire rope 1. Plays a role.
  • the coupling part 104 is a combination of a receiving structure 105 of a predetermined shape to guide the lifting body 200 to be aligned with the center lower portion of the body 100, and the lifting body 200 to the body 100 It is provided with a stopper 106 to fix the state.
  • the accommodation structure 105 is configured in a cylindrical shape having an inner space in which the lower part is open and at least the upper part of the lifting body 200 can enter and exit.
  • the receiving structure 105 may be formed integrally with the main body 100, alternatively, it may be configured as a separate member from the main body 100 so as to be detachably coupled to the lower portion of the main body 100.
  • the receiving structure 105 is located in the hollow of the drum 101 disposed in the body 100. That is, the drum 101 is disposed substantially in a shape surrounding the receiving structure 105. According to this structure, the hollow of the drum 101 can be utilized as a space for coupling between the main body 100 and the lifting body 200.
  • an anti-friction roll 107 in contact with the inner circumferential surface of the drum 101 is rotatably installed to guide the drum 101 to rotate in a horizontal state. do.
  • a guide groove 108 is formed on the lower surface of the main body 100 to surround the housing structure 105 in a substantially circular shape.
  • the guide groove 108 is coupled to the guide protrusion 203 provided in the elevator 200 when the lifting body 200 is fitted to the receiving structure 105, so that the main body 100 and the lifting body 200 are fixed. It serves to guide it to be joined in position.
  • the stopper 106 is installed to protrude from the inner wall surface of the receiving structure 105 to fix the position of the lifting body 200 inserted into the receiving structure 105.
  • a plurality of stoppers 106 are installed at equal intervals in the circumferential direction based on the center of the receiving structure 105.
  • the stopper 106 is provided with a wedge-shaped body whose lower surface is inclined at an angle, and is installed to maintain a horizontal state at all times when no external force is applied.
  • the stopper 106 is installed to be rotatable about a shaft fastened to a part of the body so that it can be pushed upward when the lifting body 200 is raised.
  • a predetermined spring (not shown) for elastically biasing is coupled to the stopper 106 to enable restoration to a horizontal state.
  • the stopper 106 may be configured to selectively protrude from the inner wall surface of the receiving structure 105 by a driving means such as a solenoid.
  • the elevating body 200 is installed to be suspended from the wire rope 1 and is raised and lowered simultaneously with the hoisting and lowering of the wire rope 1.
  • a device coupling part 204 made of, for example, ring bolts is provided at the lower end of the lifting body 200.
  • the device coupling unit 204 may be of any shape as long as it is a structure or member capable of supporting the high place installation device 10.
  • the device coupling unit 204 may be formed of a screw structure capable of screw coupling with the high place installation device 10.
  • the device coupling portion 204 may be configured as a separate member or integrated with a part of the lifting body 200.
  • the device coupling unit 204 is coupled to a height installation device 10 corresponding to, for example, a lighting lamp, a ventilation fan, a CCTV camera, and the like.
  • the high place installation device 10 is not limited to a lighting lamp, a ventilation fan, a CCTV camera, and the like, and various other electronic/electrical devices for installing a high place may be employed.
  • a locking projection 201 corresponding to the stopper 106 is formed.
  • the locking jaw 201 rotates by pushing the stopper 106, while the groove portion is coupled with the stopper 106 to fix the position of the lifting body 200.
  • the wire rope 1 unwound from the drum 101 extends downward through the hollow of the drum 101 and is connected to the lifting body 200.
  • a plurality of guide rolls 103 for guiding the wire rope 1 unwound from the drum 101 into the hollow interior of the drum 101 are disposed on the side and upper portions of the drum 101.
  • the guide roll 103 positioned above the drum 101 is mounted on the guide frame 102 disposed so as to cross the upper portion of the drum 101 inside the main body 100. .
  • the arrangement structure of the wire rope 1 is a single row type, that is, when the wire rope 1 passing through the hollow of the drum 101 is one row, at least one of the plurality of guide rolls 103 is a guide roll 103 It is arranged at a point where the wire rope 1 can be guided to the hollow center of the drum 101.
  • the arrangement structure of the wire rope (1) is a two-row type, that is, if the wire rope (1) passing through the hollow of the drum 101 is two, a certain distance is spaced from the center of the drum 101 The wire rope (1) passes through both sides.
  • the upper contact part 109 and the lower contact part 202 are provided on the lower part of the main body 100 and the upper part of the lifting body 200, respectively, so that when the main body 100 and the lifting body 200 are combined, they contact each other to conduct electricity. .
  • the upper contact portion 109 is fixed on the receiving structure 105 of the coupling portion 104 disposed in the inner region of the drum 101.
  • a through hole 110 for passing the wire rope 1 may be provided at the center of the upper contact part 109.
  • the lower contact part 202 is fixed to the upper end of the lifting body 200, and is inserted into the receiving structure 105 of the coupling part 104 when the main body 100 and the lifting body 200 are coupled to the upper contact part 109 ) And make contact. That is, the upper contact portion 109 and the lower contact portion 202 are substantially in contact with each other in the hollow inner region of the drum 101.
  • a through hole 205 for passage of the wire rope 1 may be provided at the center of the lower contact part 202.
  • microcomputer 300 it is preferable that a plurality of microcomputers 300 are provided to correspond one-to-one to the plurality of high place installation devices 10.
  • the microcomputer 300 may be embedded in the main body 100.
  • the control unit 300a provided in the microcomputer 300 checks whether or not there is a power abnormality in the corresponding high place installation device 10 and stores the power abnormality information in the memory 300b.
  • the control unit 300a of the microcomputer 300 checks the power abnormality information of the aerial installation device 10 stored in the memory 300b when the circuit breaker 301 is turned on again, and the power abnormality information For the aerial installation device 10 in which is stored, the relay 304 is turned off to cut off the power supply, and at the same time, the relay ( 304)) is turned on to perform control to supply power.
  • the relay 304 is turned off by the corresponding micom 300. Power is cut off and power is supplied to the aerial installation device 10 in which the power abnormality has not occurred, the relay 304 is turned on by the microcomputer 300 to be supplied with power.
  • the aerial installation device 10 As power is supplied to the aerial installation device 10, the aerial installation device 10 enters a standby state for operation. In the standby state for operation, when the high place installation device 10 corresponds to a lighting lamp, the lighting lamp is turned on when the administrator manipulates a switch to turn on the high place installation device 10 using a remote control (see 11 in FIG. 7) or the like.
  • the micom 300 receives a detection signal from the power abnormality detection unit 302 and recognizes whether the high place installation device 10 or the electric circuit connected to the high place installation device 10 is short.
  • the power abnormality detection unit 302 employs a voltage sensor or a current sensor.
  • the circuit breaker 301 is a device that opens and closes the power system, and is automatically turned off when a short occurs to cut off the power supplied to the plurality of aerial installation devices 10 connected thereto.
  • the circuit breaker 301 may be arranged to collectively open and close the power to all of the plurality of high place installation devices 10 installed in a predetermined facility, and the high place installation devices 10 are set by a predetermined number (for example, around 10). They can also be grouped and arranged in groups.
  • 3 to 5 illustrate a process in which a method for controlling a smart height installation device lifting device according to a preferred embodiment of the present invention is performed.
  • the circuit breaker 301 is automatically turned off (steps S103 and S104).
  • the microcomputer 300 Immediately after the circuit breaker 301 is turned off, the microcomputer 300 operates by the emergency power of the capacitor 303 to detect and recognize the power off state and overcurrent due to a short circuit, and transmit the state information to the memory 300b. Save (steps S105 and S106).
  • the power abnormality detection unit 302 is composed of a current sensor.
  • the microcomputer 300 receives an overcurrent detection signal from the power abnormality detection unit 302 and recognizes that a power abnormality has occurred due to a short circuit in the aerial installation device 10 corresponding thereto.
  • step S107 After the breaker 301 is turned off, if the breaker 301 is turned on again and the power is turned on again (step S107), the microcomputer 300 is booted and the status information on whether a short circuit stored in the memory 300b is checked and the corresponding Drive control is performed on the relay 304 connected to the aerial installation device 10 (steps S108 and S109). For example, when information indicating that a power abnormality (overcurrent) has occurred due to a short circuit in the high place installation device 10 is stored in the memory 300b, the microcomputer 300 blocks the operation of the relay 304 It blocks the supply of power to the high place installation device (10).
  • the circuit breaker 301 is normally supplied with power to the high place installation devices 10 where the short has not occurred without going down again due to the high place installation device 10 in which the short has occurred, so that the descending operation and the device turn-on are performed. Waiting for a power-on signal for (step S110).
  • the power abnormality detection unit 302 is composed of a voltage sensor.
  • the micom 300 turns on the circuit breaker 301 as the administrator raises the circuit breaker 301 again, and the circuit breaker 301 is momentarily turned on due to a power abnormality.
  • the microcomputer 300 recognizes the power abnormality state by storing power abnormality state information in the memory 300b by checking whether the corresponding high place installation device is overvoltage immediately after the breaker 301 is turned off. In this case, by sequentially operating the plurality of high place installation devices 10, which are opened and closed by the same circuit breaker 301, one by one, it is possible to check which high place installation device 10 has a power abnormality.
  • step S110 in a state in which the power is turned on and a power-on signal is waiting for the descending operation and the device turn-on (step S110), the process of selecting and operating one of the plurality of elevators is sequentially performed (step S111). .
  • the micom 300 performs driving control to operate the relay 304 connected to the high place installation device 10 when a signal for lowering the elevator 200 is detected as the manager operates the remote control 11 or the like. (Steps S112 and S113).
  • the circuit breaker 301 When a power abnormality occurs due to an overvoltage in the high place installation device 10, the circuit breaker 301 is turned off (steps S114 and S115). After checking the power abnormality, the micom 300 lowers the elevator 200 and the high place installation device 10 to the ground so that the equipment can be checked (step S116).
  • FIG. 5 specifically shows a process of servicing the high place installation device 10 in which a short circuit has occurred.
  • the micom 300 operates the drive motor 113 disposed in the main body 100 when a signal for lowering the elevator body 200 is sensed as the manager operates the remote control 11 and the like to operate the drum 101.
  • the lifting body 200 and the high place installation device 10 are lowered to the ground by rotating (steps S120 and S121). Specifically, the micom 300 releases the stopper 106 from the lifting body 200 and then rotates the drum 101 in the reverse direction to release the wire rope 1 through the hollow of the drum 101.
  • the lifting body 200 is lowered to the ground.
  • the drum 101 may be driven to slightly raise the lifting body 200 by slightly rotating in the forward direction. By this process, the stopper 106 escapes from the side of the lift body 200 and returns to its original position, and accordingly, the lift body 200 can be switched to a state in which it can be freely lowered.
  • the elevation installation device 10 may be turned on by elevating the elevator body 200 again and combining it with the main body 100 (steps S122 and S123).
  • the hoisting operation of the wire rope 1 is performed by the drum 101 disposed in the main body 100 and rotating in the forward direction by the drive motor 113.
  • the wire rope 1 is pulled up while passing through the hollow of the drum 101, and then the direction is switched by the guide roll 103 and wound around the drum 101.
  • the lifting body 200 rises and reaches a predetermined point by the winding of the wire rope 1, the reaching state is detected by a predetermined limit switch (not shown), and the drum 101 is In addition to stopping the rotation, the locking protrusion 201 provided on the upper outer circumferential surface of the lifting body 200 is caught by the stopper 106 protruding from the inner wall of the receiving structure 105 of the coupling part 104 so that the lifting body 200 becomes the main body ( 100).
  • the lifting body 200 is inserted and fixed to the receiving structure 105 and at the same time, the upper contact part 109 and the lower contact part 202 contact each other to conduct electricity.
  • the configuration and control method of the smart high place installation device elevating device as described above can be preferably applied when the high place installation device 10 is a lighting lamp installed on the ceiling inside the facility, as shown in FIGS. 6 and 7.
  • the high place installation device 10 is a ventilation fan installed on the ceiling inside the facility.
  • the smart high place installation device elevating device recognizes the specific height installation device 10 in a power abnormal state by the microcomputer 300 and performs power supply cut-off control when the circuit breaker 301 is raised again. There is a remarkable effect that can solve the problem of repeatedly turning off the electric circuit.
  • the microcomputer automatically detects this and eliminates the problem that the entire electric circuit is repeatedly turned off every time the breaker is turned on again. Can be reduced and maintenance can be performed quickly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Control And Safety Of Cranes (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

La présente invention concerne un appareil élévateur intelligent de dispositif d'installation à hauteur d'élévation élevée, et un procédé de commande associé, et plus particulièrement : un appareil élévateur intelligent de dispositif d'installation à hauteur d'élévation élevée possédant une structure qui élève un dispositif d'installation à une hauteur d'élévation élevée à installer à une hauteur élevée par enroulement d'un câble métallique sur un tambour ou par déroulement de celui-ci d'un tambour ; et un dispositif de commande associé.
PCT/KR2020/014442 2019-11-12 2020-10-21 Appareil élévateur intelligent de dispositif d'installation à grande hauteur d'élévation et son procédé de commande WO2021096090A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202080075987.7A CN114641446B (zh) 2019-11-12 2020-10-21 智能高处安装设备升降装置及其控制方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0144559 2019-11-12
KR1020190144559A KR102280972B1 (ko) 2019-11-12 2019-11-12 스마트 고소설치기기 승강장치 및 그 제어 방법

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WO2021096090A3 WO2021096090A3 (fr) 2021-07-08

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CN114641446A (zh) 2022-06-17
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WO2021096090A3 (fr) 2021-07-08

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