CN108224302B - Street lamp with charging pile function - Google Patents

Street lamp with charging pile function Download PDF

Info

Publication number
CN108224302B
CN108224302B CN201711291385.1A CN201711291385A CN108224302B CN 108224302 B CN108224302 B CN 108224302B CN 201711291385 A CN201711291385 A CN 201711291385A CN 108224302 B CN108224302 B CN 108224302B
Authority
CN
China
Prior art keywords
charging
module
lamp
charging pile
street lamp
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.)
Active
Application number
CN201711291385.1A
Other languages
Chinese (zh)
Other versions
CN108224302A (en
Inventor
郝明亮
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.)
Shenzhen Research And Development Center Of Yeal Electric Co ltd
Original Assignee
Shenzhen Research And Development Center Of Yeal Electric Co ltd
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 Shenzhen Research And Development Center Of Yeal Electric Co ltd filed Critical Shenzhen Research And Development Center Of Yeal Electric Co ltd
Priority to CN201711291385.1A priority Critical patent/CN108224302B/en
Publication of CN108224302A publication Critical patent/CN108224302A/en
Application granted granted Critical
Publication of CN108224302B publication Critical patent/CN108224302B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

The invention relates to a street lamp with a charging pile function, which comprises a lamp bracket, an illuminating lamp arranged at the tail end of the lamp bracket and a charging pile arranged at the lower part of the lamp bracket, wherein the lamp bracket is provided with a lamp hole; the charging pile is provided with a power supply module, an alternating current-to-direct current module connected with the power supply module, a charging module connected with the power supply module, an illuminating lamp connected with the alternating current-to-direct current module and a charging head connected with the charging module. The charging pile has the functions of charging piles, occupies small space, is low in overall cost, and has wide application prospect.

Description

Street lamp with charging pile function
Technical Field
The invention relates to the field of charging equipment, in particular to a street lamp with a charging pile function.
Background
At present, the use amount of new energy automobiles is steadily increased, the consumption of petrochemical energy is reduced, and the urban environment is improved, but with the increase of new energy automobiles, users often find that charging piles are difficult to find during charging, and the use experience of the new energy automobiles is reduced; in reality, can lay in a large number on the road and fill electric pile, but increased use cost.
Disclosure of Invention
The invention provides a street lamp with a charging pile function, aiming at solving the problems that a charging pile in the prior art cannot meet the use requirement and has high use cost, and the street lamp comprises a lamp bracket, an illuminating lamp arranged at the tail end of the lamp bracket and the charging pile arranged at the lower part of the lamp bracket; the charging pile is provided with a power supply module, an alternating current-to-direct current module connected with the power supply module, a charging module connected with the power supply module, an illuminating lamp connected with the alternating current-to-direct current module and a charging head connected with the charging module.
Further, the charging module pre-stage converter and the charging module post-stage converter.
Further, the pre-stage converter is a VIENNA rectifier, the post-stage converter is two paths of three-level half-bridge LLC, and the VIENNA rectifier and the three-level half-bridge LLC adopt SCI communication.
Furthermore, the charging pile further comprises a control module, the control module is connected with the power module, the alternating current-to-direct current module and the charging module, and the control module is used for controlling the on-off of the power module, controlling the current output to the illuminating lamp by the alternating current-to-direct current module and controlling the on-off of a switch tube in the charging module.
Further, the display touch screen connected with the control module is further included.
Further, the illuminating lamp adopts an LED lamp.
Further, a charging switch is arranged on the charging head.
Through the technical scheme of above-mentioned embodiment, integrate the street lamp with the function of filling electric pile, reduced the extra installation and filled the electric pile and occupy the condition in roadside space, also increased the occupation ratio of filling electric pile in the city. The VIENNA rectifier and the three-level half-bridge LLC topology staggered parallel connection scheme are adopted to realize the functions of voltage-stabilized output and isolation.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
fig. 1 is a schematic structural diagram of a street lamp with a charging post function according to some embodiments of the present invention;
fig. 2 is a schematic circuit diagram of a street lamp with a charging post function according to some embodiments of the present invention;
fig. 3 is a schematic structural diagram of a charging module of a street lamp with a charging post function according to some embodiments of the present invention;
fig. 4 is a schematic structural diagram of a VIENNA rectifier of a street lamp with a charging post function according to some embodiments of the invention;
fig. 5 is a schematic diagram of a three-level half-bridge LLC structure of a street lamp with a charging post function in some embodiments of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
As shown in fig. 1 and 2, the present invention provides a street lamp 100 with a charging post function, which includes a lamp holder 110, an illumination lamp 120 disposed at a terminal 111 of the lamp holder, and a charging post 130 disposed at a lower portion of the lamp holder 110; the charging pile 130 is provided with a power module 131, an ac-to-dc module 132 connected to the power module 131, a charging module 133 connected to the power module 131, an illumination lamp 120 connected to the ac-to-dc module 132, and a charging head 140 connected to the charging module 133. According to the invention, the functions of the charging pile and the street lamp are integrated, so that the occupied space of the charging pile is reduced, and meanwhile, after the integration, the overall cost is reduced, so that the cost for laying the charging pile in a large area is reduced, and the charging pile occupation ratio is increased.
The charging pile 130 of the invention can meet the following requirements:
(1) rated output power: 15kW, the front stage rectifier needs to reach 16 kW;
(2) input voltage: 304-456 VAC;
(3) output voltage: 200 to 750 VDC;
(4) maximum constant current output: 20A;
(5) efficiency: greater than or equal to 94%;
(6) input power factor: greater than 0.99 under full load;
(7) THD (harmonic distortion) < 5%, 100% load.
Correspondingly, the charging module 133 includes a pre-stage converter and a post-stage converter. In order to realize power factor correction and reduce harmonic content, and a charging pile does not need reverse feedback of energy, the design requirement can be met as long as unidirectional circulation of the energy is met, so a VIENNA rectifier is adopted in the preceding stage; the rear stage adopts a scheme of two paths of three-level half-bridge LLC topology interleaving parallel connection to realize voltage-stabilizing output and isolation functions, and two-stage conversion is realizedThe chemists communicate through SCI to communicate and exchange data. The overall system structure is shown in fig. 3. As defined below: vOUT＝VOUT1+VOUT2VBUS＝Vin。
Wherein, VOUTIndicating the output voltage, V, of the systemOUT1And VOUT2Respectively representing the output voltage of two circuits of staggered and parallel modules. VBUSRepresenting the output voltage, V, of the preceding stage VIENNAinRepresents the input voltage of the latter three-level LLC converter, where O represents the midpoint potential.
The front-stage PFC circuit adopts a VIENNA rectifier, and the voltage stress of the device is reduced and the high power factor is realized by utilizing the three-level structure of the VIENNA rectifier. The topological structure is shown in fig. 4, and a three-phase three-wire system L filtering mode is adopted. Six diodes (DAF +, DBF +, DCF +, DAF-, DBF-, DCF-) in the figure constitute the uncontrolled rectifying part of the circuit, where VBUS＝Udc1+Udc2Boost inductor (L)a、Lb、Lc) And an output capacitor (C)H、CL) And a switch tube (S)a、Sb、Sc) Constituting the active part of the circuit.
In order to meet the voltage range requirement of 200V-750V output of the charging pile and the high-efficiency technical index, the half-bridge three-level LLC resonant converter is selected finally. It is capable of achieving ZVS over the full load range as shown in fig. 5. It mainly consists of the following advantages:
(1) ZVS (zero Voltage switch) can be realized in the full output Voltage range without specially designing a soft switching circuit.
(2) The DC voltage gain can be changed in a large range through the change of the switching frequency.
(3) The secondary side diode of the transformer can realize ZCS in a certain working area, and the size of the system can be reduced because a smoothing reactor is not needed.
Because the charging pile does not require the new energy automobile to reversely provide energy and simultaneously considers that the voltage level is higher, a half-bridge three-level LLC converter is adopted on the primary side, and a full-bridge LLC converter is adopted on the secondary sideThe bridge does not control the rectifier circuit, as shown in fig. 5. Wherein, the main switch tube S1，S2，S3，S4And a clamping tube D5，D6Forming a half-bridge three-level structure. D1To D4And C1To C4Is the body diode and parasitic capacitance of the switching tube. Flying capacitor CSSFor decoupling S1、S4And S2、S3The switching process of (1). Inductor Lm、LrAnd a capacitor CrParameters of resonant cavity constituting converter, DR1To DR4To form a secondary side unidirectional rectifying circuit.
The charging pile 130 further includes a control module 134, the control module 134 is connected to the power module 131, the ac-to-dc conversion module 132 and the charging module 133, and the control module 134 is configured to control on/off of the power module 131, control current output from the ac-to-dc conversion module 132 to the lighting lamp 120, and control on/off of a switch tube in the charging module 133. The control module 134 may be a processor, an ARM processor, a single chip processor, or a PC processor.
In order to facilitate timely information display and rapid control instruction reception, the street lamp in the embodiment of the present invention further includes a display touch screen 135 connected to the control module 134, the display touch screen 135 controls the lighting time, and the like of the street lamp during charging, and the lighting lamp 120 employs an LED lamp to control the display current of the LED lamp to control the lighting brightness.
In order to prevent the danger of electric shock, the charging head 140 is provided with a charging switch 141, and the charging switch 141 is turned on to perform charging after the charging head 140 is reliably contacted.
The street lamp has the function of a charging pile, occupies small space, is low in overall cost and has wide application prospect.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A street lamp with a charging pile function comprises a lamp holder, and is characterized by further comprising an illuminating lamp arranged at the tail end of the lamp holder and a charging pile arranged at the lower part of the lamp holder; the charging pile is provided with a power supply module, an alternating current-to-direct current module connected with the power supply module, a charging module connected with the power supply module, an illuminating lamp connected with the alternating current-to-direct current module and a charging head connected with the charging module; the charging module comprises a pre-stage converter and a post-stage converter, the pre-stage converter is a VIENNA rectifier, the post-stage converter is two paths of three-level half-bridge LLC connected in parallel in a staggered mode, the VIENNA rectifier and the three-level half-bridge LLC are communicated by SCI, and the output voltage of the charging module is the sum of the output voltages of the two paths of three-level half-bridge LLC; the first output end of the VIENNA rectifier is connected with the first input ends of the two paths of three-level half-bridge LLC, the third output end of the VIENNA rectifier is connected with the second input ends of the two paths of three-level half-bridge LLC, and the third output end of the VIENNA rectifier is connected with the first input ends of the two paths of three-level half-bridge LLC through a capacitor; a third output end of the VIENNA rectifier is connected with second input ends of the two paths of three-level half-bridge LLC through capacitors; the capacitors comprise a first capacitor and a second capacitor which are connected in series, a second output end of the VIENNA rectifier is connected with a middle point of the first capacitor and the second capacitor, and the second output end of the VIENNA rectifier outputs a midpoint potential.
2. The street lamp with the function of the charging pile according to claim 1, wherein the charging pile further comprises a control module, the control module is connected with the power module, the AC-to-DC module and the charging module, and the control module is used for controlling the on-off of the power module, controlling the current output by the AC-to-DC module to the illuminating lamp and controlling the on-off of a switch tube in the charging module.
3. The street lamp with the charging post function as claimed in claim 2, further comprising a display touch screen connected to the control module.
4. The street lamp with the charging post function as claimed in claim 1, wherein the illuminating lamp is an LED lamp.
5. The street lamp with the function of the charging post according to claim 1, wherein the charging head is provided with a charging switch.
CN201711291385.1A 2017-12-08 2017-12-08 Street lamp with charging pile function Active CN108224302B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711291385.1A CN108224302B (en) 2017-12-08 2017-12-08 Street lamp with charging pile function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711291385.1A CN108224302B (en) 2017-12-08 2017-12-08 Street lamp with charging pile function

Publications (2)

Publication Number Publication Date
CN108224302A CN108224302A (en) 2018-06-29
CN108224302B true CN108224302B (en) 2020-05-22

Family

ID=62653392

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711291385.1A Active CN108224302B (en) 2017-12-08 2017-12-08 Street lamp with charging pile function

Country Status (1)

Country Link
CN (1) CN108224302B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110572040B (en) * 2019-09-24 2021-04-02 西北工业大学 Half-bridge LLC resonant converter interleaved parallel circuit and current-sharing control method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5738594A (en) * 1980-08-20 1982-03-03 Ushio Electric Inc Device for firing discharge lamp
CN104283293A (en) * 2014-09-29 2015-01-14 深圳市泰金田科技有限公司 Method and system for achieving vehicle wireless charging through resonance-frequency shift
CN205610296U (en) * 2016-03-09 2016-09-28 江南大学 LED street lamp fills electric pile integration equipment with electric automobile
CN206031103U (en) * 2016-08-26 2017-03-22 安徽佑赛科技有限公司 Street lamp formula car fills electric pile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5738594A (en) * 1980-08-20 1982-03-03 Ushio Electric Inc Device for firing discharge lamp
CN104283293A (en) * 2014-09-29 2015-01-14 深圳市泰金田科技有限公司 Method and system for achieving vehicle wireless charging through resonance-frequency shift
CN205610296U (en) * 2016-03-09 2016-09-28 江南大学 LED street lamp fills electric pile integration equipment with electric automobile
CN206031103U (en) * 2016-08-26 2017-03-22 安徽佑赛科技有限公司 Street lamp formula car fills electric pile

Also Published As

Publication number Publication date
CN108224302A (en) 2018-06-29

Similar Documents

Publication Publication Date Title
Cheng et al. A novel single-stage high-power-factor LED street-lighting driver with coupled inductors
CN101588139B (en) High power factor isolated buck-type power factor correction converter
CN101860192B (en) Three-state three-level PFC circuit and multi-state three-level PFC circuit
CN103944396A (en) LLC resonance type three-port DC-DC converter and control method thereof
CN107041036B (en) A kind of single-stage LED drive circuit of integrated bridgeless Boost and LLC circuit
CN107222100B (en) A kind of single-stage LED drive circuit of integrated Buck-Boost and LLC circuit
CN108235509B (en) A kind of single-stage LED drive circuit of integrated decompression Cuk and LLC circuit
CN102361403A (en) Staggered series direct current (DC)/DC converter circuit
CN103647448B (en) Integrated step-down-flyback type high power factor constant current circuit and device
CN103269164A (en) Primary side constant current controlled quasi single-stage high power factor circuit and device
CN210807100U (en) Power transmission circuit
CN104619076A (en) Electrolytic capacitance-free interleaved flyback LED (light emitting diode) driving power source
CN108224302B (en) Street lamp with charging pile function
CN105751915A (en) Photovoltaic energy storage direct current quick charging pile
CN104541443B (en) Rectification circuit and method for nonequilibrium two-phase DC power networks
CN203466729U (en) Multi-level LLC converter
CN102412740A (en) Multiphase AC-DC (alternating current-direct current) isolating conversion circuit and multiphase AC-DC power supply
CN106851925B (en) High efficiency single-stage LED drive device based on Flyback and Class-E
CN110012574A (en) A kind of mixing control LED drive circuit of the single-stage without bridge Sepic and LLC
CN109194165A (en) AC-DC power converter
Wang et al. High-efficiency high-power bridgeless integrated AC-DC converter for on-board vehicle battery charger
CN108966418A (en) A kind of multiple constant current LED drive power based on high-frequency ac square wave bus
CN101304174B (en) Energy recovery system for alternating-current power supplier
CN208227386U (en) A kind of multiple-channel output constant current driver circuit for LED
CN203326884U (en) Primary-side constant-current control quasi-single-stage high-power-factor circuit and device

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
GR01 Patent grant
GR01 Patent grant