CN105703529B - A kind of DC linear drives motor - Google Patents
A kind of DC linear drives motor Download PDFInfo
- Publication number
- CN105703529B CN105703529B CN201410707666.0A CN201410707666A CN105703529B CN 105703529 B CN105703529 B CN 105703529B CN 201410707666 A CN201410707666 A CN 201410707666A CN 105703529 B CN105703529 B CN 105703529B
- Authority
- CN
- China
- Prior art keywords
- assembly
- motor
- electric machine
- switching control
- gear
- 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
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 230000009467 reduction Effects 0.000 claims abstract description 18
- 238000004804 winding Methods 0.000 claims description 21
- 230000000712 assembly Effects 0.000 claims description 17
- 238000000429 assembly Methods 0.000 claims description 17
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000005662 electromechanics Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000000306 component Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A kind of DC linear drives motor, it is used to control hatch door to open or close, and forms as follows：Electric machine assembly (1), reduction gearing mechanism (2), switching control mechanism (3) and electric connector (4)；Electric machine assembly (1) is used as power source, converts electrical energy into mechanical energy；The turning moment of the small torque of the high speed of motor is converted into the linear thrust of low speed high torque by reduction gearing mechanism (2)；Switching control mechanism (3) realizes automatically shutting down for motor as control unit；Electric connector (4) is to provide the component of electric interfaces.The turning moment that motor exports effectively can be converted into linear thrust by the DC linear driving motor, have the advantages that precise positioning, low energy consumption, high efficiency, high thrust.It can meet the environmental requirement of any required output linear thrust or pulling force, there are boundless market prospects.
Description
Technical field
The present invention relates to the structure design and applied technical field of motor, specifically provides a kind of DC linear driving electricity
Machine.
Background technology
At present, commonly used linear motor externally exports straight line torque, but power consumption is high, and vibration is big.Working performance is unstable
It is fixed.
People are highly desirable to obtain a kind of excellent DC linear driving motor of technique effect.
The content of the invention
The object of the present invention is to provide a kind of excellent DC linear of technique effect to drive motor.It is mainly used for control cabinet
Door opens or closes；
The DC linear driving motor forms as follows：Electric machine assembly 1, reduction gearing mechanism 2,3 and of switching control mechanism
Electric connector 4；Electric machine assembly 1 is used as power source, converts electrical energy into mechanical energy；Reduction gearing mechanism 2 is small by the high speed of motor
The turning moment of torque is converted into the linear thrust of low speed high torque；Switching control mechanism 3 realizes motor as control unit
Automatically shut down；Electric connector is to provide the component of electric interfaces.Electric signal is passed to motor by the electric connector 4, is electrically connected
Device 4 is connected with switching control mechanism 3, and switching control mechanism 3 is connected with the outside of reduction gearing mechanism 2, and electric machine assembly 1 is positioned at deceleration
Inside transmission mechanism 2, switching control mechanism 3 is formed with electric machine assembly 1 and is electrically connected, and switching control mechanism 3 controls 1 turn of electric machine assembly
It is dynamic；The electric machine assembly 1 includes：Stator module 11, rotor assembly 12, motor end cover component 13, brake assemblies 14, gear assembly
15 and spring 16；The stator module 11, rotor assembly 12 and motor end cover component 13 are the main parts of motor, are realized electromechanical
Energy transformation function；Stator module 11 as structural support is enclosed in the outside of rotor assembly 12, and supports rotor assembly 12
One end, stator module 11 is structural support, and provide excitation field and brake magnetic field；Rotor assembly mainly produces armature magnetic
, it is the core component for realizing energy converting between mechanical；Motor end cover component 13 supports the other end of rotor assembly 12, is used to support
Rotor assembly 11 and placement brush；And stator module 11 is closed, gear assembly 15 and rotor as electromechanics energy output terminal
One end of component 12 is connected by straight pin, and the spring 16 withstands brake assemblies 14, makes brake assemblies 14 and stator module
There are 0.3mm gaps between 11, brake assemblies 14 are close to gear assembly 15, and spring 16 and brake assemblies 14 pass through magnetic field phase of braking
Interaction, realizes the shut-off immediately of motor.Reduction gearing mechanism 2 forms as follows：Drive sleeve 21, inner cylinder 22, geared sleeve 23, deceleration
Machine 24, tripod 25, big bearing 26, arc block plate 27 and upper cover 28；The reduction gearing mechanism 2 rises in whole electric system
To installation, fixed, support, slow down, effect of the connection motor with switching control assembly and external output mechanical energy.The gear reducer
24 be specially planetary gear set, is three-level reducing gear, the small torque of high rotating speed of electric machine assembly 1 is converted into the slow-speed of revolution turns greatly
Square；Gear reducer 24 is supported by the big bearing 26 in 22 side top of inner cylinder and connects tripod 25, makes tripod with subtracting
Fast mechanism synchronous operation, spiral channel of the tripod 25 in the drive sleeve 21 positioned at the outside of geared sleeve 23 rotate, and make transmission
Set 21 is axially moved, and drives the geared sleeve 23 positioned at the outside of inner cylinder 22 to rotate in a circumferential direction movement by arc block plate 27；On described
Lid 28 closes drive sleeve 21；The small torque of high rotating speed of electric machine assembly is converted into the big torque of the slow-speed of revolution by gear reducer 24；Lead to again afterwards
The cooperation of tripod and drive sleeve is crossed, the turning moment that electric machine assembly exports is converted into linear thrust or pulling force；Finally use
Spacing slideway on inner cylinder coordinates with the slideway on geared sleeve is converted into circumferential distance by the rectilinear path of whole system.It is described to open
Pass control mechanism 3 forms as follows：Shell 31, rotating shaft assembly 32, seat 33, switch module 34 and firm banking 35；Close control machine
Structure 3 as the control section in whole electric system, mainly realize motor automatically shut down and the function of feedback signal in place.Institute
State rotating shaft assembly 32 and switch module 34 be transversely attached connects, rotating shaft assembly 32 fix it is present between 33 and firm banking 35,
Shell 31 is sleeved on rotating shaft assembly 32, seat 33, switch module 34 and the outside of firm banking 35；The circle that reduction gearing mechanism 2 converts
All distances can pass to the rotating shaft assembly in switching control mechanism by the mating reaction of geared sleeve and switch gear, drive rotation
Cam rotation in rotating assembly, cam can turn off normally closed switch when reaching fixed position, while feed back DC voltage, realize
Motor automatically shuts down the function with feedback signal in place.Motor operation drives rotating shaft assembly rotation, when running to end positions,
Automatic lockout switch component, and export signal in place.By adjusting the cam of the quantitative commitments rotating shaft assembly of adjust pad
The transverse axis of circular portion and microswitch component contacts.
The electric connector is electric interfaces part, and input power signal, exports signal in place.Electric connector uses screw thread
Connection mode, contact use welding form, and connection is reliable.
The rotor windings of the rotor assembly 12 use Double-wire parallel wound, the form of lap wound.
The stator module 11 includes stator case and stator winding；The stator module is symmetrically fixed in stator case
Cambered surface on.
The brake assemblies 14 include：Winding and brake brake around piece.When electrical power works, brake winding produces electromagnetism
Field is attracted brake block, motor is departed from on-position, when motor powers off, brake block is withstood under motor gear under the action of the spring
Gasket, makes motor stop immediately.
The stator case is provided with annular groove close to one end of gear assembly 15, and brake winding is located in annular groove, the brake
Car winding is connected with stator winding.
The electric machine assembly 1 realizes the forward and backward function of motor using series excitation structure, and electric machine assembly 1 uses a pair of symmetrical
The magnetic pole of the identical polar of position, during one of magnetic pole ON operation, corresponds to motor and rotates forward or reversion respectively.Rotor assembly
12 rotor windings use Double-wire parallel wound, the form of lap wound.Such structure makes motor commutation more smooth, reduces motor
Torque pulsation.
The turning moment that motor exports effectively can be converted into linear thrust by the DC linear driving motor, be had
The advantages that precise positioning, low energy consumption, high efficiency, high thrust.It can meet the environment of any required output linear thrust or pulling force
It is required that there are boundless market prospects.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail：
Fig. 1 is motor component structure schematic diagram；
Fig. 2 drives electric machine structure schematic diagram for DC linear；
Fig. 3 is reduction gearing mechanism structure diagram；
Fig. 4 is switching control mechanism structure diagram.
Embodiment
Embodiment 1
The DC linear driving motor forms as follows：Electric machine assembly 1, reduction gearing mechanism 2,3 and of switching control mechanism
Electric connector 4；Electric machine assembly 1 is used as power source, converts electrical energy into mechanical energy；Reduction gearing mechanism 2 is small by the high speed of motor
The turning moment of torque is converted into the linear thrust of low speed high torque；Switching control mechanism 3 realizes motor as control unit
Automatically shut down；Electric connector is to provide the component of electric interfaces.Electric signal is passed to motor by the electric connector 4, is electrically connected
Device 4 is connected with switching control mechanism 3, and switching control mechanism 3 is connected with the outside of reduction gearing mechanism 2, and electric machine assembly 1 is positioned at deceleration
Inside transmission mechanism 2, switching control mechanism 3 is formed with electric machine assembly 1 and is electrically connected, and switching control mechanism 3 controls 1 turn of electric machine assembly
It is dynamic；The electric machine assembly 1 includes：Stator module 11, rotor assembly 12, motor end cover component 13, brake assemblies 14, gear assembly
15 and spring 16；
The stator module 11, rotor assembly 12 and motor end cover component 13 are the main parts of motor, realize electromechanical energy
Measure transformation function；Stator module 11 as structural support is enclosed in the outside of rotor assembly 12, and supports rotor assembly 12
One end, stator module 11 are structural support, and provide excitation field and brake magnetic field；Rotor assembly mainly produces armature magnetic
, it is the core component for realizing energy converting between mechanical；Motor end cover component 13 supports the other end of rotor assembly 12, is used to support
Rotor assembly 11 and placement brush；And stator module 11 is closed, gear assembly 15 and rotor as electromechanics energy output terminal
One end of component 12 is connected by straight pin, and the spring 16 withstands brake assemblies 14, makes brake assemblies 14 and stator module
There are 0.3mm gaps between 11, brake assemblies 14 are close to gear assembly 15, and spring 16 and brake assemblies 14 pass through magnetic field phase of braking
Interaction, realizes the shut-off immediately of motor.Reduction gearing mechanism 2 forms as follows：Drive sleeve 21, inner cylinder 22, geared sleeve 23, deceleration
Machine 24, tripod 25, big bearing 26, arc block plate 27 and upper cover 28；The reduction gearing mechanism 2 rises in whole electric system
To installation, fixed, support, slow down, effect of the connection motor with switching control assembly and external output mechanical energy.The gear reducer
24 be specially planetary gear set, is three-level reducing gear, the small torque of high rotating speed of electric machine assembly 1 is converted into the slow-speed of revolution turns greatly
Square；Gear reducer 24 is supported by the big bearing 26 in 22 side top of inner cylinder and connects tripod 25, makes tripod with subtracting
Fast mechanism synchronous operation, spiral channel of the tripod 25 in the drive sleeve 21 positioned at the outside of geared sleeve 23 rotate, and make transmission
Set 21 is axially moved, and drives the geared sleeve 23 positioned at the outside of inner cylinder 22 to rotate in a circumferential direction movement by arc block plate 27；On described
Lid 28 closes drive sleeve 21；The small torque of high rotating speed of electric machine assembly is converted into the big torque of the slow-speed of revolution by gear reducer 24；Lead to again afterwards
The cooperation of tripod and drive sleeve is crossed, the turning moment that electric machine assembly exports is converted into linear thrust or pulling force；Finally use
Spacing slideway on inner cylinder coordinates with the slideway on geared sleeve is converted into circumferential distance by the rectilinear path of whole system.It is described to open
Pass control mechanism 3 forms as follows：Shell 31, rotating shaft assembly 32, seat 33, switch module 34 and firm banking 35；Close control machine
Structure 3 as the control section in whole electric system, mainly realize motor automatically shut down and the function of feedback signal in place.Institute
State rotating shaft assembly 32 and switch module 34 be transversely attached connects, rotating shaft assembly 32 fix it is present between 33 and firm banking 35,
Shell 31 is sleeved on rotating shaft assembly 32, seat 33, switch module 34 and the outside of firm banking 35；The circle that reduction gearing mechanism 2 converts
All distances can pass to the rotating shaft assembly in switching control mechanism by the mating reaction of geared sleeve and switch gear, drive rotation
Cam rotation in rotating assembly, cam can turn off normally closed switch when reaching fixed position, while feed back DC voltage, realize
Motor automatically shuts down the function with feedback signal in place.Motor operation drives rotating shaft assembly rotation, when running to end positions,
Automatic lockout switch component, and export signal in place.By adjusting the cam of the quantitative commitments rotating shaft assembly of adjust pad
The transverse axis of circular portion and microswitch component contacts.
The electric connector is electric interfaces part, and input power signal, exports signal in place.Electric connector uses screw thread
Connection mode, contact use welding form, and connection is reliable.
The rotor windings of the rotor assembly 12 use Double-wire parallel wound, the form of lap wound.
The stator module 11 includes stator case and stator winding；The stator module is symmetrically fixed in stator case
Cambered surface on.
The brake assemblies 14 include：Winding and brake brake around piece.When electrical power works, brake winding produces electromagnetism
Field is attracted brake block, motor is departed from on-position, when motor powers off, brake block is withstood under motor gear under the action of the spring
Gasket, makes motor stop immediately.
The stator case is provided with annular groove close to one end of gear assembly 15, and brake winding is located in annular groove, the brake
Car winding is connected with stator winding.
The electric machine assembly 1 realizes the forward and backward function of motor using series excitation structure, and electric machine assembly 1 uses a pair of symmetrical
The magnetic pole of the identical polar of position, during one of magnetic pole ON operation, corresponds to motor and rotates forward or reversion respectively.Rotor assembly
12 rotor windings use Double-wire parallel wound, the form of lap wound.Such structure makes motor commutation more smooth, reduces motor
Torque pulsation.
The turning moment that motor exports effectively can be converted into linear thrust by the DC linear driving motor, be had
The advantages that precise positioning, low energy consumption, high efficiency, high thrust.It can meet the environment of any required output linear thrust or pulling force
It is required that there are boundless market prospects.
Claims (5)
1. a kind of DC linear drives motor, it is used to control hatch door to open or close, it is characterised in that：The DC linear drives
Dynamic motor forms as follows：Electric machine assembly (1), reduction gearing mechanism (2), switching control mechanism (3) and electric connector (4)；It is described
Electric signal is passed to motor by electric connector (4), and electric connector (4) is connected with switching control mechanism (3), switching control mechanism
(3) with being connected outside reduction gearing mechanism (2), electric machine assembly (1) is located at reduction gearing mechanism (2) inside, switching control mechanism
(3) form and be electrically connected with electric machine assembly (1), switching control mechanism (3) control electric machine assembly (1) rotates；The electric machine assembly (1)
Including：Stator module (11), rotor assembly (12), motor end cover component (13), brake assemblies (14), gear assembly (15) and bullet
Spring (16)；Stator module (11) is enclosed on the outside of rotor assembly (12), and supports one end of rotor assembly (12), electric motor end cap group
The other end of part (13) support rotor assembly (12), and close stator module (11), the gear as electromechanics energy output terminal
Component (15) is connected with one end of rotor assembly (12) by straight pin, and the spring (16) withstands brake assemblies (14), makes
There are 0.3mm gaps between brake assemblies (14) and stator module (11), brake assemblies (14) are close to gear assembly (15), slow down
Transmission mechanism (2) forms as follows：Drive sleeve (21), inner cylinder (22), geared sleeve (23), gear reducer (24), tripod (25), big axis
Hold (26), arc block plate (27) and upper cover (28)；The gear reducer (24) is specially planetary gear set, is three-level reducing gear,
The small torque of high rotating speed of electric machine assembly (1) is converted into the big torque of the slow-speed of revolution；Gear reducer (24) passes through positioned at inner cylinder (22) side
Big bearing (26) in top supports and connects tripod (25), and tripod is run simultaneously with reducing gear, the tripod
(25) spiral channel in the drive sleeve (21) on the outside of geared sleeve (23) rotates, and is axially moved drive sleeve (21), and lead to
Crossing arc block plate (27) drives the geared sleeve (23) on the outside of the inner cylinder (22) to rotate in a circumferential direction movement；Upper cover (28) closing passes
Dynamic set (21)；The switching control mechanism (3) forms as follows：Shell (31), rotating shaft assembly (32), seat (33), switch module
(34) and firm banking (35)；The rotating shaft assembly (32) with switch module (34) is transversely attached connects, rotating shaft assembly (32)
Fixed to be present between (33) and firm banking (35), shell (31) is sleeved on rotating shaft assembly (32), seat (33), switch module (34)
With firm banking (35) outside.
2. drive motor according to DC linear described in claim 1, it is characterised in that：The rotor windings of the rotor assembly (12)
Using the form of Double-wire parallel wound, lap wound.
3. drive motor according to DC linear described in claim 2, it is characterised in that：The stator module (11) includes stator case
Body and stator winding；The stator module is symmetrically fixed in the cambered surface in stator case.
4. drive motor according to DC linear described in claim 3, it is characterised in that：The brake assemblies (14) include：Friction
Piece and brake sheet metal.
5. drive motor according to DC linear described in claim 4, it is characterised in that：The stator case is close to gear assembly
(15) one end is provided with annular groove, and brake winding is located in annular groove, and the brake winding is connected with stator winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707666.0A CN105703529B (en) | 2014-11-27 | 2014-11-27 | A kind of DC linear drives motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707666.0A CN105703529B (en) | 2014-11-27 | 2014-11-27 | A kind of DC linear drives motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105703529A CN105703529A (en) | 2016-06-22 |
| CN105703529B true CN105703529B (en) | 2018-05-04 |
Family
ID=56230456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410707666.0A Active CN105703529B (en) | 2014-11-27 | 2014-11-27 | A kind of DC linear drives motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105703529B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230145B (en) * | 2020-10-16 | 2024-04-19 | 中车永济电机有限公司 | Modularized linear induction motor rotation test device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751998A (en) * | 1971-05-18 | 1973-08-14 | A Vasilatos | Linear actuator |
| CN1065712A (en) * | 1991-02-25 | 1992-10-28 | 罗斯-海姆设计公司 | Miniature linear actuator |
| CN102820753A (en) * | 2012-08-09 | 2012-12-12 | 张峰 | Mechanical-braking asynchronous motor |
| CN202663233U (en) * | 2012-07-02 | 2013-01-09 | 深圳市佳顺伟业科技有限公司 | Linear movement device driven by direct current motor or alternating current motor |
| CN104061299A (en) * | 2014-06-25 | 2014-09-24 | 西安交通大学 | Mechanism capable of realizing mutual conversion between push force and pull force of force amplifying |
| CN204349684U (en) * | 2014-11-27 | 2015-05-20 | 沈阳兴华航空电器有限责任公司 | A kind of DC linear drive motors |
-
2014
- 2014-11-27 CN CN201410707666.0A patent/CN105703529B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751998A (en) * | 1971-05-18 | 1973-08-14 | A Vasilatos | Linear actuator |
| CN1065712A (en) * | 1991-02-25 | 1992-10-28 | 罗斯-海姆设计公司 | Miniature linear actuator |
| CN202663233U (en) * | 2012-07-02 | 2013-01-09 | 深圳市佳顺伟业科技有限公司 | Linear movement device driven by direct current motor or alternating current motor |
| CN102820753A (en) * | 2012-08-09 | 2012-12-12 | 张峰 | Mechanical-braking asynchronous motor |
| CN104061299A (en) * | 2014-06-25 | 2014-09-24 | 西安交通大学 | Mechanism capable of realizing mutual conversion between push force and pull force of force amplifying |
| CN204349684U (en) * | 2014-11-27 | 2015-05-20 | 沈阳兴华航空电器有限责任公司 | A kind of DC linear drive motors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105703529A (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20250262921A1 (en) | High efficiency electric motor | |
| CN104332346B (en) | Electric-machine directly-driven operating mechanism used for high-voltage switch and control method thereof | |
| CN105703529B (en) | A kind of DC linear drives motor | |
| CN105048707A (en) | Direct-current brushless in-wheel motor with power outage brake function | |
| CN204349684U (en) | A kind of DC linear drive motors | |
| CN201608585U (en) | Electromagnetic braking variable-frequency speed regulation three-phase asynchronous motor | |
| CN1141775C (en) | Directly driven synchronous dragger with Nd-Fe-B permanent magnetic rotor | |
| CN205190100U (en) | Motorcycle engine electricity starting drive | |
| CN101447362A (en) | Permanent magnet swing angle electric operating mechanism of high voltage circuit breaker | |
| CN202251582U (en) | Electromagnetic brake | |
| CN207651435U (en) | A kind of permanent magnet mechanism for outdoor breaker | |
| CN204407245U (en) | A kind of oil immersion electrodynamic type high voltage load switch | |
| CN204012962U (en) | A kind of asynchronous voltage and frequency motor | |
| CN206040508U (en) | A high-voltage circuit breaker asymmetric winding motor operating mechanism | |
| CN102075063B (en) | Non-contact magnetic brake mechanism | |
| CN101976933B (en) | Electromagnetic ultrasonic compound motor and control method thereof | |
| CN104503363A (en) | Switch control system and method | |
| CN208939743U (en) | A kind of brushless permanent magnet motor applied to deep water manipulator | |
| CN206809785U (en) | A kind of automatically controlled curtain-drawing device of stage | |
| CN205911225U (en) | Permanent magnetism vacuum contactor | |
| CN217927394U (en) | Valve positioner rotor motor type I/P conversion unit | |
| CN202103533U (en) | Internal combustion generating electric welding charger | |
| CN111427258B (en) | Multi-redundancy servo control fault safety type straight-stroke rapid cut-off actuating mechanism | |
| CN201351757Y (en) | Driving structure | |
| CN203339880U (en) | Brake mechanism of electric sliding door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |