CN116201690A - Power generation device with gravity energy storage device and power generation method - Google Patents

Power generation device with gravity energy storage device and power generation method Download PDF

Info

Publication number
CN116201690A
CN116201690A CN202310217227.0A CN202310217227A CN116201690A CN 116201690 A CN116201690 A CN 116201690A CN 202310217227 A CN202310217227 A CN 202310217227A CN 116201690 A CN116201690 A CN 116201690A
Authority
CN
China
Prior art keywords
energy storage
storage device
power generation
tower
support platform
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310217227.0A
Other languages
Chinese (zh)
Inventor
郑天禄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202310217227.0A priority Critical patent/CN116201690A/en
Publication of CN116201690A publication Critical patent/CN116201690A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/80—Arrangement of components within nacelles or towers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/13—Combinations of wind motors with apparatus storing energy storing gravitational potential energy
    • F03D9/16—Combinations of wind motors with apparatus storing energy storing gravitational potential energy using weights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G3/00—Other motors, e.g. gravity or inertia motors
    • F03G3/087—Gravity or weight motors
    • F03G3/094—Gravity or weight motors specially adapted for potential energy power storage stations; combinations of gravity or weight motors with electric motors or generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine

Abstract

The invention discloses a power generation device with a gravity energy storage device and a power generation method, wherein the device is embedded into a ground plane and comprises the following components: the device comprises a tower barrel, a vertical shaft, a wind power generation mechanism, a gravitational potential energy generation mechanism and an electric control device; the tower cylinder is arranged on the ground level; the vertical shaft is embedded into the ground plane, and the top end of the vertical shaft is communicated with the bottom end of the tower barrel; the wind power generation mechanism is arranged on the tower barrel; the electric control device comprises: plc controller, energy storage device and traction motor; the energy storage device is electrically connected with the plc controller, the traction motor and the wind power generation mechanism respectively; an input electric quantity sensor is arranged in the energy storage device. According to the invention, the weight is pulled by the three-phase asynchronous motor, and the weight drops to drive the three-phase asynchronous motor to generate electricity, so that gravitational potential energy is adopted to generate electricity; the tower enters the tower through the external supporting platform, the tower door and the internal supporting platform, and is maintained; the ground base frame is buried in the ground, and the foundation frame is connected with the tower barrel, so that the stability of the whole device is improved.

Description

Power generation device with gravity energy storage device and power generation method
Technical Field
The invention relates to the technical field of power generation devices, in particular to a power generation device with a gravity energy storage device and a power generation method.
Background
The fossil fuel is used for generating electricity at the end of the 20 th century, but the fossil fuel is not a lot of resources, so that people are gradually more using renewable energy sources (water energy, solar energy, wind energy, geothermal energy, ocean energy and the like) to generate electricity, and the working principle of the generator is electromagnetic induction, and the generator is driven to rotate by mechanical energy to generate electricity during working.
In the wind power generation structure in the prior art, only a wind power generation mechanism is arranged, and when the wind power is reduced or no wind exists, the power generation structure cannot operate to generate power; the gravitational potential energy generating mechanism is arranged in the device, and gravitational potential energy is generated through falling of the heavy objects to generate electricity, so that the problems in the prior art can be effectively solved.
Therefore, how to provide a power generation device with a gravity energy storage device and a power generation method for generating power by gravitational potential energy is one of the technical problems that need to be solved in the art.
Disclosure of Invention
In view of this, the present invention provides a power generation device equipped with a gravity energy storage device and a power generation method. The purpose is to solve the above-mentioned shortcomings.
In order to solve the technical problems, the invention adopts the following technical scheme:
a power generation device provided with a gravity energy storage device, the device being embedded within a ground plane, the device comprising: the device comprises a tower barrel, a vertical shaft, a wind power generation mechanism, a gravitational potential energy generation mechanism and an electric control device; the tower cylinder is arranged on the ground plane; the vertical shaft is embedded into the ground plane, and the top end of the vertical shaft is communicated with the bottom end of the tower barrel; the wind power generation mechanism is arranged on the tower barrel; the electric control device comprises: plc controller, energy storage device and traction motor; the energy storage device is respectively and electrically connected with the plc controller, the traction motor and the wind power generation mechanism; an input electric quantity sensor is arranged in the energy storage device and used for monitoring the input electric quantity of the wind power generation mechanism; the gravitational potential energy generating mechanism comprises: the device comprises a support frame, a gearbox, a three-phase asynchronous motor and a weight; the supporting frame is arranged in the tower barrel, and the bottom end of the supporting frame is embedded into the ground plane; the gearbox and the three-phase asynchronous motor are fixedly arranged at the top end of the support frame; the traction motor is connected with the gearbox through a first traction piece; the gearbox is in transmission connection with the three-phase asynchronous motor; the three-phase asynchronous motor is connected with the weight through a second traction piece; the weight is far away from or extends into the vertical shaft; the three-phase asynchronous motor is electrically connected with the energy storage device.
Preferably, the method further comprises: the built-in support platform is fixedly connected with the inner side wall of the tower barrel and is positioned above the gravitational potential energy generating mechanism; the electric control device is fixedly arranged on the top surface of the built-in supporting platform.
Preferably, the method further comprises: the external support platform is fixedly connected with the outer side wall of the tower barrel, and the external support platform and the internal support platform are located at the same height.
Preferably, a tower door is arranged on the side wall of the tower, the tower door is located between the internal support platform and the external support platform, and the bottom end of the tower door is close to the top surface of the internal support platform or the top surface of the external support platform.
Preferably, guardrails are arranged around the external supporting platform; one side of the guardrail is provided with a notch, and the notch is connected with an external crawling ladder.
Preferably, a crane is arranged on the external supporting platform and is used for hanging weights.
Preferably, the method further comprises: the foundation frame is buried below the ground level, and the top end of the foundation frame is fixedly connected with the base end of the tower.
A method of generating electricity provided with a gravity energy storage device, comprising the steps of:
the wind power generation mechanism receives the driving of the fan and converts mechanical energy into electric energy to be stored in the energy storage device; the energy storage device provides electric energy for the plc controller and the traction motor; when the input electric quantity sensor detects that the input electric quantity of the wind power generation mechanism is small or no input electric quantity, the traction motor provides kinetic energy for the gearbox, and the low-speed end of the gearbox moves to draw a heavy object; the weight reaches a preset height, the weight is released, the high-speed end of the gearbox moves, the three-phase asynchronous motor generates electricity, and the electric energy is stored in the energy storage device.
Compared with the prior art, the invention has the following technical effects:
the gearbox is low in rotation speed to lift the heavy object, and when the electric quantity sensor monitors that the input electric quantity of the wind power generation mechanism is reduced or disappears, the gearbox is high in rotation speed to rotate the heavy object to fall into the vertical shaft, so that the technical effect of power generation through gravitational potential energy can be achieved;
the tower barrel door is positioned between the internal support platform and the external support platform, the bottom end of the tower barrel door is close to the top surface of the internal support platform or the top surface of the external support platform, and the tower barrel door and the internal support platform enter the tower barrel through the external support platform and the tower barrel door;
the foundation frame is buried below the ground level, and the top end of the foundation frame is fixedly connected with the base end of the tower barrel, so that the stability of the whole device is improved.
In summary, the invention has reasonable integral structure, the weight is pulled by the three-phase asynchronous motor, and the weight drops to drive the three-phase asynchronous motor to generate electricity, thereby realizing the adoption of gravitational potential energy to generate electricity; the external support platform, the tower drum door and the internal support platform enter the tower drum to carry out maintenance; the foundation frame is buried in the ground and connected with the tower, so that the stability of the whole device is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
in the figure:
1-ground plane; 2-tower; 21-a tower door; 3-shaft; 4-a wind power generation mechanism; 5-a gravitational potential energy generating mechanism; 51-supporting frames; 52-a gearbox; 53-three-phase asynchronous motor; 54-weight; 6-an electric control device; 7-a built-in support platform; 8-an external supporting platform; 81-an external cat ladder; 9-ground base frame.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to figures 1 and 2 there is shown a power generation device provided with a gravity energy storage device embedded within a ground plane 1, the device comprising: the tower 2, shaft 3, wind power generation mechanism 4, gravitational potential energy power generation mechanism 5, electric control device 6, built-in supporting platform 7 and external supporting platform 8, wherein, tower 2 sets up on ground level 1, shaft 3 embedding ground level 1, and shaft 3 top and tower 2 bottom intercommunication.
The wind power generation mechanism 4 includes: a nacelle, a wind generator, a hub, and a plurality of blades; the nacelle is fixedly connected to the top end of the tower 2, and the nacelle is parallel to the ground. The wind driven generator is arranged in the cabin, and a rotating shaft of the wind driven generator extends out of the cabin. The hub is fixedly connected with a rotating shaft of the wind driven generator, and a plurality of blades are fixedly connected to the periphery of the hub.
The electronic control device 6 includes: plc controller, energy storage device and traction motor; the energy storage device is electrically connected with the plc controller, the traction motor and the wind power generator respectively; the energy storage device is internally provided with an input electric quantity sensor for monitoring the input electric quantity of the wind driven generator.
The gravitational potential energy generating mechanism 5 includes: a support frame 51, a gearbox 52, a three-phase asynchronous motor 53 and a weight 54; the support frame 51 is arranged in the tower 2, and the bottom end of the support frame 51 is embedded into the ground plane 1; the gearbox 52 and the three-phase asynchronous motor 53 are fixedly arranged at the top end of the supporting frame 51; the traction motor is connected to the gearbox 52 by a first traction element; the gearbox 52 is in transmission connection with a three-phase asynchronous motor 53; the three-phase asynchronous motor 53 is connected with the weight 54 through a second traction piece; the weight 54 is far away from or extends into the shaft 3; the three-phase asynchronous motor 53 is electrically connected to an energy storage device. The weight 54 descends downwards, the three-phase asynchronous motor 53 generates electricity, and the energy storage device is charged with electric energy.
The built-in supporting platform 7 is fixedly connected with the inner side wall of the tower drum 2, the built-in supporting platform 7 is positioned above the gravitational potential energy generating mechanism 5, and the electric control device 6 is fixedly arranged on the top surface of the built-in supporting platform 7. The external supporting platform 8 is fixedly connected with the outer side wall of the tower 2, and the external supporting platform 8 and the internal supporting platform 7 are positioned at the same height. The side wall of the tower drum 2 is provided with a tower drum door 21, the tower drum door 21 is positioned between the internal support platform 7 and the external support platform 8, and the bottom end of the tower drum door 21 is close to the top surface of the internal support platform 7 or the top surface of the external support platform 8. Enters the internal supporting platform 7 through the external supporting platform 8 and the tower door 21.
The guardrail is arranged around the external supporting platform 8, one side of the guardrail is provided with a notch, and the notch is connected with an external cat ladder 81. And climbs to the external support platform 8 through the external crawling ladder 81.
The external supporting platform 8 is provided with a crane for hanging heavy objects.
In this embodiment, the method further includes: the foundation frame 9, foundation frame 9 buries below ground level 1, and the top of foundation frame 9 and the base end fixed connection of a tower section of thick bamboo 2 for improve the stability of whole device.
In this embodiment, the weight 54 may be a metal casing, and sand, rock, soil, etc. may be used in the casing, and the specific materials may be determined with comprehensive economy.
In this embodiment, the first traction member is a power cable and a pulley assembly, and the second traction member is a power cable and a pulley assembly.
The diameter and depth of the vertical shaft 3 can be changed according to the energy storage capacity requirement, and the capacity of the gearbox 52, the three-phase asynchronous motor 53 and the weight of the weight 54 can be flexibly configured according to the actual requirement.
The weight support height and shaft depth can also be extended up and down depending on the conditions to obtain greater energy storage capacity, with embodiments optimized for weight standards for economy.
The energy storage device of the wind turbine generator is provided with necessary measuring elements, can accurately calculate stored, storable and releasable energy through measurement, is provided with necessary protection devices, ensures that a motor, a gearbox, a gear train, a steel wire rope and the like work normally in the working process, is provided with a weight monitoring device, ensures that weights are safely arranged up and down, and various components and sensor signals are connected into a PLC (programmable logic controller), so that an automatic measurement and control function is realized.
The energy storage information (energy storable and energy dischargeable) of each fan is accessed to an energy storage control platform, and the energy storage control platform refers to AGC (active control platform) and wind power prediction conditions, automatically gives out the energy storage and discharge strategy of the energy storage device, and can automatically realize the energy storage and discharge.
The motor is provided with an electromagnetic brake, the electromagnetic brake monitoring controller monitors the control of the controller, and the main function of the electromagnetic brake is to fix the weight when the energy storage equipment does not work, so that the height of the weight is kept by avoiding working of the motor, and the effects of convenience in control and energy conservation are achieved.
The motor of the energy storage system is connected to the grid end of the grid-connected system of the wind turbine generator, and is electrically connected through an independent full-power converter, and is provided with a grid-connected contactor, so that the contactor and the converter are controlled according to an energy storage and release control strategy, and further the motor can work accurately.
A method of generating electricity provided with a gravity energy storage device, comprising the steps of:
the wind power generation mechanism 4 receives the driving of a fan, converts mechanical energy into electric energy and stores the electric energy in the energy storage device; the energy storage device provides electric energy for the plc controller and the traction motor;
when the input electric quantity sensor detects that the input electric quantity of the wind driven generator is small or no, the traction motor provides kinetic energy for the gearbox 52, and the low-speed end of the gearbox 52 moves to draw the weight 54;
the weight 54 reaches a predetermined height, the weight 54 is released, the gearbox 52 moves at a high speed end, the three-phase asynchronous motor 53 generates electricity, and the electricity is stored in the energy storage device.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (8)

1. A power generation device provided with a gravity energy storage device, characterized in that the device is embedded in a ground plane (1), the device comprising: the device comprises a tower (2), a vertical shaft (3), a wind power generation mechanism (4), a gravitational potential energy generation mechanism (5) and an electric control device (6);
the tower (2) is arranged on the ground plane (1); the vertical shaft (3) is embedded into the ground plane (1), and the top end of the vertical shaft (3) is communicated with the bottom end of the tower barrel (2);
the wind power generation mechanism (4) is arranged on the tower (2);
the electric control device (6) comprises: plc controller, energy storage device and traction motor; the energy storage device is respectively and electrically connected with the plc controller, the traction motor and the wind power generation mechanism (4); an input electric quantity sensor is arranged in the energy storage device and used for monitoring the input electric quantity of the wind power generation mechanism (4);
the gravitational potential energy generating mechanism (5) comprises: a supporting frame (51), a gearbox (52), a three-phase asynchronous motor (53) and a weight (54); the support frame (51) is arranged in the tower (2), and the bottom end of the support frame (51) is embedded into the ground plane (1); the gearbox (52) and the three-phase asynchronous motor (53) are fixedly arranged at the top end of the supporting frame (51); the traction motor is connected with the gearbox (52) through a first traction piece; the gearbox (52) is in transmission connection with the three-phase asynchronous motor (53); the three-phase asynchronous motor (53) is connected with the weight (54) through a second traction piece; the weight (54) is far away from or extends into the vertical shaft (3); the three-phase asynchronous motor (53) is electrically connected with the energy storage device.
2. The power generation device equipped with a gravity energy storage device of claim 1, further comprising: the built-in support platform (7), the built-in support platform (7) is fixedly connected with the inner side wall of the tower (2), and the built-in support platform (7) is positioned above the gravitational potential energy generating mechanism (5); the electric control device (6) is fixedly arranged on the top surface of the built-in supporting platform (7).
3. A power plant provided with a gravity energy storage device according to claim 2, further comprising: the support device comprises an external support platform (8), wherein the external support platform (8) is fixedly connected with the outer side wall of the tower (2), and the external support platform (8) and the internal support platform (7) are located at the same height.
4. A power plant provided with a gravity energy storage device according to claim 3, characterized in that the side wall of the tower (2) is provided with a tower door (21), the tower door (21) is located between the inner support platform (7) and the outer support platform (8), and the bottom end of the tower door (21) is adjacent to the top surface of the inner support platform (7) or the top surface of the outer support platform (8).
5. A power plant provided with a gravity energy storage device according to claim 3, characterized in that the periphery of the external support platform (8) is provided with guardrails; one side of the guardrail is provided with a notch, and the notch is connected with an external crawling ladder (81).
6. A power plant provided with a gravity energy storage device according to claim 3, characterized in that the external support platform (8) is provided with a crane for lifting the weight.
7. The power generation device equipped with a gravity energy storage device of claim 1, further comprising: the foundation frame (9), foundation frame (9) buries in below ground level (1), just the top of foundation frame (9) with the base end fixed connection of tower section of thick bamboo (2).
8. A method of generating electricity with a gravity energy storage device, characterized in that it is implemented with a power generation device with a gravity energy storage device according to any of claims 1-7, comprising the steps of:
the wind power generation mechanism (4) receives the driving of the fan, converts mechanical energy into electric energy and stores the electric energy in the energy storage device; the energy storage device provides electric energy for the plc controller and the traction motor;
when the input electric quantity sensor detects that the input electric quantity of the wind power generation mechanism (4) is small or no input electric quantity, the traction motor provides kinetic energy for the gearbox (52), and the low-speed end of the gearbox (52) moves to draw a heavy object (54);
the weight (54) reaches a preset height, the weight (54) is released, the high-speed end of the gearbox (52) moves, the three-phase asynchronous motor (53) generates electricity, and the electricity is stored in the energy storage device.
CN202310217227.0A 2023-03-08 2023-03-08 Power generation device with gravity energy storage device and power generation method Pending CN116201690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310217227.0A CN116201690A (en) 2023-03-08 2023-03-08 Power generation device with gravity energy storage device and power generation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310217227.0A CN116201690A (en) 2023-03-08 2023-03-08 Power generation device with gravity energy storage device and power generation method

Publications (1)

Publication Number Publication Date
CN116201690A true CN116201690A (en) 2023-06-02

Family

ID=86509322

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310217227.0A Pending CN116201690A (en) 2023-03-08 2023-03-08 Power generation device with gravity energy storage device and power generation method

Country Status (1)

Country Link
CN (1) CN116201690A (en)

Similar Documents

Publication Publication Date Title
US9957018B1 (en) System for wave amplifying, wave energy harnessing, and energy storage
US8030790B2 (en) Hybrid water pressure energy accumulating wind turbine and method
CN202348569U (en) Vertical axis wind generator
AU2012100203A4 (en) Multiple Generator Wind Turbines with Rotary Blade Cage
CN102016294A (en) Wave power plant and transmission
CN102439289B (en) Wind generating device
CN101881256A (en) Wind power generator
Zafar Literature review of wind turbines
CN101514677B (en) Vertical wind driven generator
US9537371B2 (en) Contra rotor wind turbine system using a hydraulic power transmission device
CN111706469A (en) New energy wind power generation device
CN101545452B (en) Vertical wind-powered generator
CN102418674B (en) Energy storage wind driven power generation device
CN107740754A (en) A kind of transmission device used for wind-energy power generation
CN116201690A (en) Power generation device with gravity energy storage device and power generation method
CN116867966A (en) Mass-member-shifting energy storage and power generation equipment
CN202370757U (en) Energy-storage wind power generating set
WO2011143799A1 (en) Wind-ocean dual-effect power generator
CN101550917A (en) Vertical wind power generator
CN114837898A (en) Gravity energy storage type wind power generation tower provided with segmented supporting mechanism
CN211008943U (en) Integrated power generation system of wind energy and ocean wave energy
CN201705571U (en) Wind driven generator
CN220769646U (en) Underground energy storage device
KR101278301B1 (en) The barge for the transfer and an establishment of the offshore wind turbine
CN218376720U (en) Novel wind power generation device of relative rotation double-impeller yaw-free motor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination