CN206404857U - A kind of high-power multi-phase permanent direct current generator direct-drive type ball mill - Google Patents
A kind of high-power multi-phase permanent direct current generator direct-drive type ball mill Download PDFInfo
- Publication number
- CN206404857U CN206404857U CN201621305078.5U CN201621305078U CN206404857U CN 206404857 U CN206404857 U CN 206404857U CN 201621305078 U CN201621305078 U CN 201621305078U CN 206404857 U CN206404857 U CN 206404857U
- Authority
- CN
- China
- Prior art keywords
- annular
- rotor
- direct
- ball mill
- balling
- 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.)
- Expired - Fee Related
Links
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model is related to a kind of high-power multi-phase permanent direct current generator direct-drive type ball mill, including balling-drum body, and balling-drum body two ends set feeding of ball mill end and discharging end of ball mill respectively；The position that balling-drum outer body wall surface is located between 2 sliding bearings is provided with annular direct driving motor, and annular direct driving motor is made up of annular direct driving motor housing, annular generator stator and annular generator rotor；Annular generator stator is made up of stator core with the stator winding for being wound in stator core periphery, and annular generator stator is assemblied in annular direct driving motor case inside；Balling-drum body outer surface increase has semiconductor heat-dissipating layer；Stator core lateral wall is provided with thermoelectric converter, and thermoelectric converter is circumscribed with cooling fan.The utility model is conducive to improving production efficiency and energy-saving and emission-reduction, improves the separate run times of motor, meets the use demand that high-power multi-phase permanent direct current generator direct-drive type ball mill is worked continuously.
Description
Technical field
The utility model is related to direct-drive type ball mill technical field, more particularly to a kind of high-power multi-phase permanent direct current generator
Direct-drive type ball mill.
Background technology
Ball mill is a kind of equipment by crushing material, and its general principle is to be promoted to the steel ball in cylinder using revolving force
Certain altitude, which leaves, to be pounded to material, passes through contacting with each other crushing material between steel ball and material.Conventional bead mill is used
The cumbersome transmission mechanism such as asynchronous machine and decelerator, gear drives rotating cylinder rotary shaft to be rotated, and has the disadvantage that drive system is imitated
Rate is low, and transmission mechanism loss is big and maintenance rate is high, starts unstable etc..
Conventional bead mill, as power, is driven by the cumbersome transmission mechanism such as decelerator, gear-box and turned using asynchronous machine
Cylinder rotation, drive-train efficiency is low, and transmission mechanism loss is big and maintenance rate is high, starts unstable.
Analyzed based on more than, my company sets up research and development group, by long-term experimental test and scientific research, design is a kind of
High-power multi-phase permanent direct current generator direct-drive type ball mill, meets the operation demand of direct-drive type ball mill, improves drive efficiency, drop
Underneath drive is lost, at the same time, and cooling mechanism improvement is carried out to the permanent magnet DC motor being related to, when improving the single operation of motor
Between, meet the use demand that high-power multi-phase permanent direct current generator direct-drive type ball mill is worked continuously.
Utility model content
The purpose of this utility model is, for existing ball mill with motor using technical problem present in process,
A kind of high-power multi-phase permanent direct current generator direct-drive type ball mill is designed, rotating cylinder is directly driven by direct-drive type annular generator, it is numerous
Trivial transmission mechanism is all cancelled, and operation is more stable, without power transmission loss, is conducive to improving production efficiency and energy-saving and emission-reduction,
In the case that power device voltage and current ability is constant, realize high-power, meet the operation demand of direct-drive type ball mill, improve
Drive efficiency, reduces power transmission loss, at the same time, carries out cooling mechanism improvement to the permanent magnet DC motor being related to, improves motor
Separate run times, meet the use demand that high-power multi-phase permanent direct current generator direct-drive type ball mill is worked continuously.
The utility model is achieved through the following technical solutions：
A kind of high-power multi-phase permanent direct current generator direct-drive type ball mill, it is characterised in that including balling-drum body
(1), balling-drum body (1) two ends set feeding of ball mill end (101) and discharging end of ball mill (102) respectively；
The balling-drum body (1) is sheathed in sliding bearing (11), and sliding bearing (11) is assemblied in the support of bearing
(12) on；
The position that balling-drum body (1) outer side wall surface is located between 2 sliding bearings (11) is provided with annular
Direct driving motor, the annular direct driving motor is by annular direct driving motor housing (7), annular generator stator and annular generator rotor structure
Into；
The annular direct driving motor housing (7) is assemblied on motor support support (41)；
The annular generator stator is by stator core (4) and is wound in peripheral stator winding (401) structure of stator core (4)
Into annular generator stator is assemblied on the inside of annular direct driving motor housing (7)；
The annular generator rotor is the rotor electrical excitation magnetic pole (3) being fixedly connected with pole wheel support (305), rotor
Pole bracket (305) is fixed on balling-drum body (1) shell body, and rotor electrical excitation magnetic pole (3) is assemblied in rotor-exciting
Conductive copper rail (302), rotor electrical excitation magnetic pole (3) periphery is wound with rotor magnetic pole Exciting Windings for Transverse Differential Protection (301)；
Brush (8) is provided between the annular generator stator and annular generator rotor, brush (8) passes through brush support frame
(801) it is fixed on brush holder (802) on annular direct driving motor housing (7)；
The brush (8) is in contact with the conductive copper rail (302) of rotor-exciting；
1~2cm gap is preset between the annular generator stator and annular generator rotor；
Further, the rotor electrical excitation magnetic pole (3) is fixed on by rotor magnetic pole Exciting Windings for Transverse Differential Protection fixing bolt (303) and turned
On the conductive copper rail (302) of sub- excitation.
Further, the conductive copper rail (302) of the rotor-exciting is solid by the conductive copper rail insulating carriage (304) of rotor-exciting
Due on rotor magnetic pole support (305).
Further, balling-drum body (1) the outer surface increase has semiconductor heat-dissipating layer (2).
Further, stator core (4) lateral wall is provided with thermoelectric converter (5), and thermoelectric converter (5) is circumscribed with scattered
Air-heater (6).
Further, the cooling fan (6) is assemblied in sliding bearing (11) top.
Further, the cooling fan (6) is just relative with stator core (4).
Further, the annular generator rotor is assembled into integral structure with balling-drum body (1).
The utility model provides a kind of high-power multi-phase permanent direct current generator direct-drive type ball mill, with prior art phase
Than beneficial effect is：
1st, the high-power multi-phase permanent direct current generator direct-drive type ball mill of the utility model design, including balling-drum sheet
Body (1), balling-drum body (1) two ends set feeding of ball mill end (101) and discharging end of ball mill (102) respectively；Ball milling
Machine drum body (1) is sheathed in sliding bearing (11), and sliding bearing (11) is assemblied on the support of bearing (12)；Ball mill turns
The position that cylinder body (1) outer side wall surface is located between 2 sliding bearings (11) is provided with annular direct driving motor, annular direct driving motor
It is made up of annular direct driving motor housing (7), annular generator stator and annular generator rotor；Above-mentioned design structure, by annular generator
Rotor is assembled into integral structure with balling-drum body (1), and balling-drum body (1) surface passes through rotor magnetic pole support
(305) rotor electrical excitation magnetic pole (3) is installed, rotor electrical excitation magnetic pole (3) periphery is wound with rotor magnetic pole Exciting Windings for Transverse Differential Protection (301),
Annular generator stator by stator core (4) and be wound in stator core (4) periphery stator winding (401) constitute, annular generator
Stator is assemblied on the inside of annular direct driving motor housing (7)；1~2cm is preset between annular generator stator and annular generator rotor
Gap；Operationally, square wave current is gradually input to each phase of annular generator stator using current transformer by certain phase sequence
In armature winding, when certain of stator winding (401) is mutually powered, the magnetic field that the phase current is produced and rotor electrical excitation magnetic pole (3)
Produced magnetic field interaction and produce torque, driving rotor rotation is real so as to drive balling-drum body (1) to rotate
Now directly drive, above-mentioned type of drive, compared with existing ball mill type of drive, cumbersome transmission mechanism is all cancelled, fortune
Row is more stable, without power transmission loss, is conducive to improving production efficiency and energy-saving and emission-reduction, in power device voltage and current ability not
In the case of change, realize high-power.
2nd, the high-power multi-phase permanent direct current generator direct-drive type ball mill of the utility model design, balling-drum body
(1) outer surface increase has semiconductor heat-dissipating layer (2)；Stator core (4) lateral wall is provided with thermoelectric converter (5), heat to electricity conversion
Device (5) is circumscribed with cooling fan (6)；Cooling fan (6) is assemblied in sliding bearing (11) top；Cooling fan (6) and stator iron
Core (4) is just relative；Above-mentioned design structure, the semiconductor heat-dissipating layer (2) of design is conducive to fast transfer balling-drum body (1)
And the heat of annular generator rotor surface, the thermoelectric converter (5) and cooling fan (6) of design are conducive to fixed in running
The heat produced on sub- iron core (4) carries out thermoelectric conversion, and for the operation of cooling fan (6), by cooling fan (6) to fixed
Sub- iron core (4) carries out surface radiating, it is ensured that stable temperature environment is kept in ball mill motor running, so as to improve
The separate run times of motor, meet the use demand that high-power multi-phase permanent direct current generator direct-drive type ball mill is worked continuously.
Brief description of the drawings
High-power multi-phase permanent direct current generator direct-drive type ball mill that Fig. 1 designs for the utility model faces structural representation
Figure.
The side view structural representation for the high-power multi-phase permanent direct current generator direct-drive type ball mill that Fig. 2 designs for the utility model
Figure.
The sectional structure signal for the high-power multi-phase permanent direct current generator direct-drive type ball mill that Fig. 3 designs for the utility model
Figure.
Fig. 4 is the rotor electrical excitation magnetic pole distributed architecture schematic diagram of annular electrode in the utility model.
Embodiment
The utility model is described further refering to accompanying drawing 1, Fig. 2, Fig. 3 and Fig. 4.
The utility model is related to a kind of high-power multi-phase permanent direct current generator direct-drive type ball mill, it is characterised in that including
Balling-drum body (1), balling-drum body (1) two ends set feeding of ball mill end (101) and ball mill discharging respectively
Hold (102)；
The balling-drum body (1) is sheathed in sliding bearing (11), and sliding bearing (11) is assemblied in the support of bearing
(12) on；
The position that balling-drum body (1) outer side wall surface is located between 2 sliding bearings (11) is provided with annular
Direct driving motor, the annular direct driving motor is by annular direct driving motor housing (7), annular generator stator and annular generator rotor structure
Into；
The annular direct driving motor housing (7) is assemblied on motor support support (41)；
The annular generator stator is by stator core (4) and is wound in peripheral stator winding (401) structure of stator core (4)
Into annular generator stator is assemblied on the inside of annular direct driving motor housing (7)；
The annular generator rotor is the rotor electrical excitation magnetic pole (3) being fixedly connected with pole wheel support (305), rotor
Pole bracket (305) is fixed on balling-drum body (1) shell body, and rotor electrical excitation magnetic pole (3) is assemblied in rotor-exciting
Conductive copper rail (302), rotor electrical excitation magnetic pole (3) periphery is wound with rotor magnetic pole Exciting Windings for Transverse Differential Protection (301)；
Brush (8) is provided between the annular generator stator and annular generator rotor, brush (8) passes through brush support frame
(801) it is fixed on brush holder (802) on annular direct driving motor housing (7)；
The brush (8) is in contact with the conductive copper rail (302) of rotor-exciting；
1~2cm gap is preset between the annular generator stator and annular generator rotor；
As an improvement, the rotor electrical excitation magnetic pole (3) is fixed on by rotor magnetic pole Exciting Windings for Transverse Differential Protection fixing bolt (303)
In rotor-exciting conduction copper rail (302).
As an improvement, the conductive copper rail (302) of the rotor-exciting passes through the conductive copper rail insulating carriage (304) of rotor-exciting
It is fixed on rotor magnetic pole support (305).
As an improvement, balling-drum body (1) the outer surface increase has semiconductor heat-dissipating layer (2).
As an improvement, stator core (4) lateral wall is provided with thermoelectric converter (5), thermoelectric converter (5) is circumscribed with
Cooling fan (6).
As an improvement, the cooling fan (6) is assemblied in sliding bearing (11) top.
As an improvement, the cooling fan (6) is just relative with stator core (4).
As an improvement, the annular generator rotor is assembled into integral structure with balling-drum body (1).
Compared with prior art, the high-power multi-phase permanent direct current generator direct-drive type ball mill of the utility model design, bag
Balling-drum body (1) is included, balling-drum body (1) two ends set feeding of ball mill end (101) and ball mill to go out respectively
Expect end (102)；Balling-drum body (1) is sheathed in sliding bearing (11), and sliding bearing (11) is assemblied in the support of bearing
(12) on；Directly driven provided with annular at the position that balling-drum body (1) outer side wall surface is located between 2 sliding bearings (11)
Motor, annular direct driving motor is made up of annular direct driving motor housing (7), annular generator stator and annular generator rotor；It is above-mentioned to set
Structure is counted, annular generator rotor and balling-drum body (1) are assembled into integral structure, balling-drum body (1) table
Rotor electrical excitation magnetic pole (3) is installed in face by rotor magnetic pole support (305), and rotor electrical excitation magnetic pole (3) periphery is wound with rotor
Magnetic pole excitation winding (301), annular generator stator is by stator core (4) and is wound in the peripheral stator winding of stator core (4)
(401) constitute, annular generator stator is assemblied on the inside of annular direct driving motor housing (7)；Annular generator stator turns with annular generator
1~2cm gap is preset between son；Operationally, square wave current is gradually input to by certain phase sequence using current transformer
In each phase armature winding of annular generator stator, when certain of stator winding (401) is mutually powered, the phase current produce magnetic field with
Magnetic field interaction produced by rotor electrical excitation magnetic pole (3) and produce torque, driving rotor rotation, so as to drive ball mill to turn
Cylinder body (1) is rotated, and is realized and is directly driven, above-mentioned type of drive, compared with existing ball mill type of drive, cumbersome transmission
Mechanism all cancels, and operation is more stable, without power transmission loss, is conducive to improving production efficiency and energy-saving and emission-reduction, in power device
In the case that voltage and current ability is constant, realize high-power.
The high-power multi-phase permanent direct current generator direct-drive type ball mill of the utility model design, balling-drum body (1)
Outer surface increase has semiconductor heat-dissipating layer (2)；Stator core (4) lateral wall is provided with thermoelectric converter (5), thermoelectric converter
(5) it is circumscribed with cooling fan (6)；Cooling fan (6) is assemblied in sliding bearing (11) top；Cooling fan (6) and stator core
(4) it is just relative；Above-mentioned design structure, design semiconductor heat-dissipating layer (2) be conducive to fast transfer balling-drum body (1) and
The heat of annular generator rotor surface, the thermoelectric converter (5) and cooling fan (6) of design are conducive to stator in running
The heat produced on iron core (4) carries out thermoelectric conversion, and for the operation of cooling fan (6), by cooling fan (6) to stator
Iron core (4) carries out surface radiating, it is ensured that stable temperature environment is kept in ball mill motor running, so as to improve electricity
The separate run times of machine, meet the use demand that high-power multi-phase permanent direct current generator direct-drive type ball mill is worked continuously.
The utility model is when in use, straight to the high-power multi-phase permanent of design according to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4
Stream motor-direct-drive type ball mill is assembled, it is necessary to which the material for carrying out ball milling enters via feeding of ball mill end (101), via ball
Grinding machine discharge end (102) is discharged；Balling-drum body (1) surface rotor electrical excitation is installed by rotor magnetic pole support (305)
Magnetic pole (3), rotor electrical excitation magnetic pole (3) periphery is wound with rotor magnetic pole Exciting Windings for Transverse Differential Protection (301), and annular generator stator is by stator iron
Core (4) and stator winding (401) composition for being wound in stator core (4) periphery, annular generator stator are assemblied in annular straight drive electricity
On the inside of casing body (7)；1~2cm gap is preset between annular generator stator and annular generator rotor；Operationally, utilize
Square wave current is gradually input in each phase armature winding of annular generator stator by current transformer by certain phase sequence, works as stator winding
(401) when certain is mutually powered, magnetic field interaction produced by magnetic field and rotor electrical excitation magnetic pole (3) that the phase current is produced and
Torque is produced, driving rotor rotation, so as to drive balling-drum body (1) to rotate, realizes direct drive.
As described above, you can the utility model is applied.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (8)
1. a kind of high-power multi-phase permanent direct current generator direct-drive type ball mill, it is characterised in that including balling-drum body
(1), balling-drum body (1) two ends set feeding of ball mill end (101) and discharging end of ball mill (102) respectively；
The balling-drum body (1) is sheathed in sliding bearing (11), and sliding bearing (11) is assemblied in the support of bearing (12)
On；
Directly driven provided with annular at the position that balling-drum body (1) outer side wall surface is located between 2 sliding bearings (11)
Motor, the annular direct driving motor is made up of annular direct driving motor housing (7), annular generator stator and annular generator rotor；
The annular direct driving motor housing (7) is assemblied on motor support support (41)；
The annular generator stator by stator core (4) and be wound in stator core (4) periphery stator winding (401) constitute,
Annular generator stator is assemblied on the inside of annular direct driving motor housing (7)；
The annular generator rotor is the rotor electrical excitation magnetic pole (3) being fixedly connected with pole wheel support (305), rotor magnetic pole
Support (305) is fixed on balling-drum body (1) shell body, and it is conductive that rotor electrical excitation magnetic pole (3) is assemblied in rotor-exciting
Copper rail (302), rotor electrical excitation magnetic pole (3) periphery is wound with rotor magnetic pole Exciting Windings for Transverse Differential Protection (301)；
Brush (8) is provided between the annular generator stator and annular generator rotor, brush (8) passes through brush support frame
(801) it is fixed on brush holder (802) on annular direct driving motor housing (7)；
The brush (8) is in contact with the conductive copper rail (302) of rotor-exciting；
1~2cm gap is preset between the annular generator stator and annular generator rotor.
2. high-power multi-phase permanent direct current generator direct-drive type ball mill according to claim 1, it is characterised in that described turn
Sub- electrical excitation magnetic pole (3) is fixed on the conductive copper rail (302) of rotor-exciting by rotor magnetic pole Exciting Windings for Transverse Differential Protection fixing bolt (303)
On.
3. high-power multi-phase permanent direct current generator direct-drive type ball mill according to claim 1, it is characterised in that described turn
The conductive copper rail (302) of sub- excitation is fixed on rotor magnetic pole support (305) by the conductive copper rail insulating carriage (304) of rotor-exciting
On.
4. high-power multi-phase permanent direct current generator direct-drive type ball mill according to claim 1, it is characterised in that the ball
The increase of grinding machine drum body (1) outer surface has semiconductor heat-dissipating layer (2).
5. high-power multi-phase permanent direct current generator direct-drive type ball mill according to claim 1, it is characterised in that described fixed
Sub- iron core (4) lateral wall is provided with thermoelectric converter (5), and thermoelectric converter (5) is circumscribed with cooling fan (6).
6. high-power multi-phase permanent direct current generator direct-drive type ball mill according to claim 5, it is characterised in that described to dissipate
Air-heater (6) is assemblied in sliding bearing (11) top.
7. high-power multi-phase permanent direct current generator direct-drive type ball mill according to claim 5, it is characterised in that described to dissipate
Air-heater (6) is just relative with stator core (4).
8. high-power multi-phase permanent direct current generator direct-drive type ball mill according to claim 1, it is characterised in that the ring
Shape rotor is assembled into integral structure with balling-drum body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621305078.5U CN206404857U (en) | 2016-11-30 | 2016-11-30 | A kind of high-power multi-phase permanent direct current generator direct-drive type ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621305078.5U CN206404857U (en) | 2016-11-30 | 2016-11-30 | A kind of high-power multi-phase permanent direct current generator direct-drive type ball mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206404857U true CN206404857U (en) | 2017-08-15 |
Family
ID=59551362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621305078.5U Expired - Fee Related CN206404857U (en) | 2016-11-30 | 2016-11-30 | A kind of high-power multi-phase permanent direct current generator direct-drive type ball mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206404857U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108452937A (en) * | 2018-01-31 | 2018-08-28 | 湖北环电磁装备工程技术有限公司 | The screw washer that no frame permanent magnet synchronous motor directly drives |
| CN111854288A (en) * | 2020-07-03 | 2020-10-30 | 湖南桃花鸭食品科技有限公司 | Stew in soy sauce article cooling device |
| CN112121695A (en) * | 2020-10-01 | 2020-12-25 | 湖南长重机器股份有限公司 | Novel mixing driving system of steel sintering drum mixer |
| CN112547231A (en) * | 2020-11-20 | 2021-03-26 | 王江 | Ball mill heat dissipation barrel device capable of avoiding grinding overheating |
-
2016
- 2016-11-30 CN CN201621305078.5U patent/CN206404857U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108452937A (en) * | 2018-01-31 | 2018-08-28 | 湖北环电磁装备工程技术有限公司 | The screw washer that no frame permanent magnet synchronous motor directly drives |
| CN111854288A (en) * | 2020-07-03 | 2020-10-30 | 湖南桃花鸭食品科技有限公司 | Stew in soy sauce article cooling device |
| CN112121695A (en) * | 2020-10-01 | 2020-12-25 | 湖南长重机器股份有限公司 | Novel mixing driving system of steel sintering drum mixer |
| CN112547231A (en) * | 2020-11-20 | 2021-03-26 | 王江 | Ball mill heat dissipation barrel device capable of avoiding grinding overheating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206404857U (en) | A kind of high-power multi-phase permanent direct current generator direct-drive type ball mill | |
| CN201041974Y (en) | A dual protrusion pole axial magnetic field permanent magnetic electromotor | |
| CN107317449A (en) | A kind of high efficiency high-pressure explosion-proof type three-phase asynchronous | |
| CN106899160A (en) | Super environmentally friendly generator | |
| CN203645516U (en) | Outer rotor permanent magnet synchronous motor and industrial ceiling fan | |
| CN206838229U (en) | A kind of electric excitation synchronous motor direct-drive type energy-saving ball mill | |
| CN204013092U (en) | A kind of wide voltage motors | |
| CN202043009U (en) | Double-stator planar motor | |
| CN202593503U (en) | Train locomotive | |
| CN203843807U (en) | Angle grinder | |
| CN203645515U (en) | External rotor permanent magnet synchronous motor of industrial big fan | |
| CN204652135U (en) | Solid rotor box hat brake motor | |
| CN203251205U (en) | Power drive DC motor of electric vehicle | |
| CN203843805U (en) | Coaxial electric tool | |
| CN207184183U (en) | DC low-speed motor and its large-scale ceiling fan | |
| CN203189293U (en) | Driving device of electric fan | |
| CN207069845U (en) | High efficiency high-pressure explosion-proof type three-phase asynchronous | |
| CN209050524U (en) | A kind of threephase asynchronous casing grinding device | |
| CN206894461U (en) | A kind of reliable asynchronous machine equipment of new type of safe | |
| CN206650563U (en) | A kind of hydroelectric synchronous machine | |
| CN105162284A (en) | Novel motor structure | |
| CN201337947Y (en) | Alternating current spin magnetic separator | |
| CN209562333U (en) | A kind of modified form rotor for magneto | |
| CN104617686A (en) | Axial-field modular motor | |
| CN205092729U (en) | Novel electric motor structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 Termination date: 20201130 |