CN207146128U - A kind of track lamp - Google Patents
A kind of track lamp Download PDFInfo
- Publication number
- CN207146128U CN207146128U CN201721210808.8U CN201721210808U CN207146128U CN 207146128 U CN207146128 U CN 207146128U CN 201721210808 U CN201721210808 U CN 201721210808U CN 207146128 U CN207146128 U CN 207146128U
- Authority
- CN
- China
- Prior art keywords
- rail portion
- lamp body
- body module
- rail
- orbitrap electrodes
- 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.)
- Withdrawn - After Issue
Links
- 238000002955 isolation Methods 0.000 claims abstract description 20
- 230000005489 elastic deformation Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model discloses a kind of track lamp, including orbit portion and at least one lamp body module being installed on orbit portion, the orbit portion includes rail portion, and it is arranged on the orbitrap electrodes in rail portion, the lamp body module is provided with the connection terminal electrically connected with orbitrap electrodes, the rail portion is provided with electrode isolation portion between orbitrap electrodes, the electrode isolation portion is provided with engaging portion close to one end of lamp body module, the lamp body module is additionally provided with the elastic buckles coordinated with engaging portion, the connection terminal is arranged on the outside of elastic buckles, the elastic buckles and engaging portion with reference to when produce elastic deformation and connection terminal is closely abutted with orbitrap electrodes.The utility model makes full use of the attachment structure between lamp body module and orbit portion to strengthen the electrical contact between orbitrap electrodes and lamp body module, reliability is improved while simplifying structure, it is easier for installation quick and lamp body module press-in orbit portion can be operated disposably in place.
Description
Technical field
Lighting device is the utility model is related to, particularly a kind of track lamp.
Background technology
Track lamp is a kind of lighting device that lamp installation is in orbit, its except provide illuminate in addition to, moreover it is possible to according to
The various demands at family are flexibly arranged in pairs or groups use, so as to form different decorative effects, therefore, its be widely used in market, exhibition center,
Hotel.
Existing track lamp generally comprises guide rail body and lamp body, and guide rail body is provided with U-type groove, and the two of U-type groove are relative
Madial wall is provided with mounting groove, and for installing bare wire, lamp body is provided with pcb board, pcb board both ends close to two bare wires two
Side is respectively equipped with flexible connection terminal, and when lamp body, which pushes, to be inserted at the top of guide rail body, connection terminal produces elasticity
Deformation and closely abutted with bare wire, such as Publication No. CN205592721U utility model patent, the structure due to lamp body with
The elastic force clamping fixed of connection terminal is relied solely between guide rail body, connection and electrical contact between lamp body and guide rail body
Reliability is poor, and easily because the installation reason such as mismachining tolerance or vibrations, and causes poor electric contact, or even lamp body is from guide rail
Come off on body.Creep age distance simultaneously between two bare wires in guide rail body is short, is not suitable for the lamp body of high voltage operation,
Application is limited.
Utility model content
The utility model is intended to one of above-mentioned technical problem at least solving in correlation technique to a certain extent.Therefore,
The utility model proposes a kind of track lamp, its can make connection between orbit portion and lamp body module and electrical contact is more stable can
Lean on, and can lifting operating voltage, improve security and application.
In order to solve the above technical problems, the utility model provides a kind of track lamp, including orbit portion and it is installed in orbit portion
On at least one lamp body module, the orbit portion includes rail portion, and the orbitrap electrodes being arranged in rail portion, the lamp body
Module is provided with the connection terminal electrically connected with orbitrap electrodes, and the rail portion is provided with electrode isolation between orbitrap electrodes
Portion, the electrode isolation portion are provided with engaging portion close to one end of lamp body module, and the lamp body module is additionally provided with and engaging portion
The elastic buckles of cooperation, the connection terminal are arranged on the outside of elastic buckles, and elasticity is produced when the elastic buckles are combined with engaging portion and is become
Shape and connection terminal is closely abutted with orbitrap electrodes.
Further, the rail portion is provided with the insulating protection wall relative with electrode isolation portion on the outside of orbitrap electrodes,
The insulating protection wall is provided with the groove of setting-in orbitrap electrodes.
Further, the lamp body module includes lamp socket, and the light source portion on lamp socket, and what is be connected with lamp socket are located at light
Diffuser outside the portion of source, the lamp socket are provided at both ends with the plug with the elastic buckles.
Further, the incidence surface of the diffuser and/or exiting surface are provided with the concaveconvex structure for increasing light refraction.
Further, the incidence surface is provided with multiple bar-shaped troughs extended along rail portion length direction.
Further, the light source portion extends respectively to the outer end plate of both sides plug along the both ends on rail portion length direction,
The diffuser extends respectively to concordant with the outer end plate of both sides plug and forms closing along the both ends on rail portion length direction
End.
Further, the diffuser is provided with the lower light trough and is used for integrally formed with the lower light trough in lamp socket
Clamp the cavity in light source portion.
Further, the lamp socket is provided with along the both ends on rail portion width and is coated on enclosing on the outside of rail portion
Side.
Further, the orbit portion also includes the peace for being used to be installed on rail portion on face to be installed being connected with rail portion
Fill support.
Further, the mounting bracket is provided with the clamping for being used to clamp rail portion along the extension of rail portion length direction
Groove, the shoe abutted against with rail portion is provided with the buckling groove.
Further, the back side of the mounting bracket is provided with the cunning for being used to be embedded in magnet along the extension of rail portion length direction
Groove.
The beneficial effects of the utility model are：
1st, the utility model is set by setting the electrode isolation portion with engaging portion between orbitrap electrodes in lamp body module
The elastic buckles coordinated with engaging portion are put, elastic deformation is produced when being combined by elastic buckles with engaging portion to make connection terminal and track
Electrode seal abuts, so that the connection and electrical contact between orbit portion and lamp body module are more reliable and more stable.This practicality is new
Type makes full use of the attachment structure between lamp body module and orbit portion to strengthen the electrical contact between orbitrap electrodes and lamp body module,
Reliability is improved while simplifying structure, and lamp body module press-in orbit portion can be operated disposably in place, and installation is more square
Just it is quick.
2nd, electrode isolation part adds creep age distance, so as to improve the operating voltage of track lamp from orbitrap electrodes
And security.
3rd, by being arranged to add to the concaveconvex structure of light refraction in the incidence surface and/or exiting surface of diffuser, so as to
So that the uniform light that track lamp issues is soft, hot spot is eliminated.
4th, by the way that light source portion to be extended respectively to the outer end plate of both sides plug along the both ends on rail portion length direction, and will
Diffuser extends respectively to concordant with the outer end plate of both sides plug and forms blind end along the both ends on rail portion length direction, from
And multiple lamp body block combiners can be made to realize slitless connection when on orbit portion, the dark space of lamp body module adjacent position is eliminated,
Improve light extraction light efficiency.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is a kind of dimensional structure diagram of track lamp of the present utility model；
Fig. 2 is a kind of decomposing schematic representation of track lamp of the present utility model；
Fig. 3 is a kind of side schematic view of track lamp of the present utility model (omission electrical power source connection)；
Fig. 4 is the side schematic view of another track lamp of the present utility model (omission electrical power source connection)；
Fig. 5 is the dimensional structure diagram of the plug in the utility model；
Fig. 6 is the dimensional structure diagram of the diffuser in the utility model；
Fig. 7 is the dimensional structure diagram of the electrical power source connection in the utility model；
Fig. 8 is the dimensional structure diagram of another angle of the electrical power source connection in the utility model.
Embodiment
Referring to figs. 1 to Fig. 8, a kind of track lamp provided by the utility model, including orbit portion 1 and be installed on orbit portion 1
At least one lamp body module 2, the orbit portion 1 includes rail portion 11, and the orbitrap electrodes 12 being arranged in rail portion 11, institute
State the one end of rail portion 11 and be provided with the electrical power source connection 10 electrically connected with orbitrap electrodes 12, power supply is supplied to direction guiding rail portion 11,
The rail portion 11 is provided with electrode isolation portion 111 between orbitrap electrodes 12, and the electrode isolation portion 111 has separated orbitrap electrodes
12, creep age distance is added, so as to improve the operating voltage of track lamp and security.The electrode isolation portion 111 is close to lamp
One end of module 2 is provided with engaging portion 1111, and the lamp body module 2 is provided with the connection terminal electrically connected with orbitrap electrodes 12
201, and the elastic buckles 202 coordinated with engaging portion 1111, the connection terminal 201 be arranged on the outside of elastic buckles 202, the elasticity
Button 202 with engaging portion 1111 with reference to when generation elastic deformation and connection terminal 201 is closely abutted with orbitrap electrodes 12.
Reference picture 3, the connection terminal 201 is flexible, and specifically, the connection terminal 201 is provided with towards track
The terminal bending section 2011 that electrode 12 is bent.The elastic buckles 202, which push, produces elastic deformation when being caught in engaging portion 1111, it is certainly
It is pressed on by end on connection terminal 201, so as to promote connection terminal 201 to be only pushed against on orbitrap electrodes 12, strengthens connection
Electrical contact between terminal 201 and orbitrap electrodes 12.In other embodiments, reference picture 4, the orbitrap electrodes 12 have bullet
Property, specifically, the orbitrap electrodes 12 are inlaid in rail portion 11, and the elastic buckles 202 push to be produced when being caught in engaging portion 1111
Raw elastic deformation, its free end is pressed on orbitrap electrodes 12, so as to promote orbitrap electrodes 12 tightly to compress connection terminal
201。
The utility model make full use of the attachment structure between lamp body module 2 and orbit portion 1 strengthen orbitrap electrodes 12 with
Electrical contact between lamp body module 2, reliability is improved while simplifying structure, and lamp body module 2 be pressed into orbit portion 1 can one
Secondary property operation is in place, easier for installation quick.
Preferably, the rail portion 11 is provided with the insulation relative with electrode isolation portion 111 in the outside of orbitrap electrodes 12
Protection walls 112, the insulating protection wall 112 are provided with the groove of setting-in orbitrap electrodes 12.The insulating protection wall 112 is gone along with sb. to guard him in-orbit
The outside of road electrode 12, avoids orbitrap electrodes 12 from being touched and cause electric shock accidents, while orbitrap electrodes 12 are flush-mounted in insulating protection
On wall 112, be arranged on relative to orbitrap electrodes 12 in electrode isolation portion 111, or installed in insulating protection wall 112 and electrode every
From the spacing that on the position between portion 111, can extend to the full extent between two orbitrap electrodes 12, operating voltage and peace are improved
Quan Xing.In the present embodiment, the rail portion 11 is integrally formed, i.e., the one of described electrode isolation portion 111 and insulating protection wall 112 into
Type, but do not limit, the electrode isolation portion 111 and insulating protection wall 112 can also split settings, such as electrode isolation portion 111
It is respectively installed on channled rail body with insulating protection wall 112, is combined by channled rail body, or the left and right sides is exhausted
Edge protection walls 112 are integrally formed, and electrode isolation portion 111 is by the known connected mode such as mode such as clamping, mode connects for screw and absolutely
Edge protection walls 112 connect.
Rail portion 11 is fixedly installed into wall for convenience to wait on mounting surface, the orbit portion 1 also includes and guide rail
The mounting bracket 13 for being used to be installed on rail portion 11 on face to be installed that portion 11 connects.Specifically, the mounting bracket 13 is set
The buckling groove 131 for being used to clamp rail portion 11 along the extension of the length direction of rail portion 11 is equipped with, is provided with the buckling groove 131
The shoe 14 abutted against with rail portion 11, the friction between rail portion 11 and buckling groove 131 is increased by shoe 14,
Prevent rail portion 11 from sliding or even deviating from buckling groove 131.Certainly, the connected mode of the rail portion 11 and mounting bracket 13
This is not limited to, can also use other known means such as mode connects for screw etc..
Preferably, the back side of the mounting bracket 13 is provided with along the extension of the length direction of rail portion 11 for being embedded in magnet
15 chute 132.User can lay the quantity and placement location of magnet 15 according to installation requirements in chute 132, by
Setting-in magnet 15 in the chute 132, you can rail portion 11 of the present utility model is conveniently and efficiently adsorbed onto on metal mounting surface.
In order to prevent magnet 15 from deviating from out of chute 132, the inwall of described chute 132 is provided with the raised line for increasing friction.Institute
Stating mounting bracket 13 can also be fixed by screws on face to be installed, and the spiral shell passed through for screw is set in the mounting bracket 13
Follow closely mounting hole.
Reference picture 2, the lamp body module 2 includes lamp socket 21, the light source portion 22 on lamp socket 21, and is connected with lamp socket 21
The diffuser 23 being located at outside light source portion 22, the light source portion 22 includes substrate, and the light-emitting component being arranged on substrate, institute
It can be LED or OLED etc. to state light-emitting component.The lamp socket 21 includes pedestal 211, and the plug 212 located at the both ends of pedestal 211, institute
State plug 212 and be provided with the described elastic buckles 202 coordinated with electrode isolation portion 111.Described one end of connection terminal 201 and light source
The substrate in portion 22 is fixed, and the other end inserts orbit portion 1 through plug 212, is electrically connected with orbitrap electrodes 12.As the utility model
It is preferred, the lamp socket 21 is provided with the surrounding edge for being coated on the outside of rail portion 11 along the both ends on the width of rail portion 11
210, the second of paired orbitrap electrodes 12 further improves security to protection.Reference picture 2 and Fig. 5, the plug 212 are logical
Attachment screw 25 to be crossed to be connected with pedestal 211, the plug 212 sets the screw hole 2121 with installation attachment screw 25, and correspondingly
The storage tank 2122 of setting-in plug 26 is provided with the screw hole 2121, screw is blocked by plug 26, can both improve security,
Also the aesthetic property of lighting device can be improved.
In order that the uniform light that track lamp issues is soft, eliminate hot spot, the incidence surface 231 of the diffuser 23 and/
Or exiting surface 232 is arranged to add to the concaveconvex structure of light refraction.In the present embodiment, the incidence surface 231 is curved, arc
Incidence surface 231 on be provided with it is multiple along the length direction of rail portion 11 extension bar-shaped troughs 2311 and form concaveconvex structure, so as to
So that track lamp forms the light efficiency of more homogeneous soft on the length direction of rail portion 11.The exiting surface 232 can pass through frosted
The rough surface with concaveconvex structure is formed etc. mode, further to improve the uniformity of light.Further, it is also possible in printing opacity
Diffusant is uniformly added in cover 23, the diffusion effect for the light that diffuser 23 is sent to light source portion 22 is improved by diffusant.
In order that slitless connection is realized in multiple lamp assembly combinations when on guide rail, the light source portion 22 is grown along rail portion 11
Both ends on degree direction extend respectively to the outer end plate 2123 of both sides plug 212, in order to eliminate lamp assembly adjacent position
Dark space, improves light extraction light efficiency, and the diffuser 23 extends respectively to and both sides plug along the both ends on the length direction of rail portion 11
212 outer end plate 2123 is concordant and forms blind end.The diffuser 23 is integrally formed with blind end, without using plug 212
Closing, it is dark relative to the structure of the closing diffuser 23 of plug 212 using light-transmitting materials, lamp body top entirely lighting, seamless
Area, the illuminating effect and dicoration of track lamp are good.
Reference picture 6, the diffuser 23 are provided with for clamping light in the lower light trough 24 integrally formed with lower light trough 24
The cavity 241 in source portion 22.The structure forms integrated light trough structure, integral light-transmitting, light extraction by lower light trough 24 with diffuser 23
Effect is more uniform.In other embodiments, the diffuser 23 also can be with the lower split settings of light trough 24, such as described lower light trough 24
It is fixed on by connected modes such as screws on lamp socket 21, or lower light trough 24 is slideably inlaid on pedestal 211, lower light trough 24
Both ends carried out by the plug 212 being connected with pedestal 211 it is spacing etc..
Reference picture 7 and Fig. 8, the electrical power source connection 10 includes the power electrode 101 electrically connected with orbitrap electrodes 12, and uses
In the junction button 102 that engaging portion 1111 snaps connection, the power electrode 101 is arranged on the outside of junction button 102, the junction button
102 with engaging portion 1111 with reference to when produce elastic deformation and power electrode 101 is closely abutted with orbitrap electrodes 12.Ensure power supply
Connected between connecting portion 10 and orbit portion 1 reliable.In order to prevent electrical power source connection 10 from deviating from from rail portion 11, the power supply connection
Portion 10 is provided with the limit buckle 103 snapped connection with engaging portion 1111, a side of the limit buckle 103 away from engaging portion 1111
It is provided with the protuberance 1031 abutted against with rail portion 11.As it is of the present utility model preferably, the electrical power source connection 10 is set
There is rectifier circuit, to realize the 2 non-directional installation of lamp body module, when ensureing orbitrap electrodes 12 with 101 reversal connection of power electrode,
Track lamp also can normal work.
In description of the present utility model, it is to be understood that term " on ", " under ", "front", "rear", "left", "right",
Orientation or position relationship Deng instruction are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this practicality newly
Type and simplifying describes, rather than instruction or implies that signified device or element must have specific orientation, with specific orientation
Construction and operation, therefore it is not intended that to limitation of the present utility model.
In description of the present utility model, " multiple " are meant that at least two, such as two, three etc., unless otherwise
It is clearly specific to limit.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
It is further to note that each specific technical characteristic described in above-mentioned embodiment, not
In the case of contradiction, it can be combined by any mode, for unnecessary repetition, the utility model is to various possible
Combination not otherwise stated, certainly, it can also be combined between different embodiments, it is new without departing from this practicality
The creation thought of type.
Above example is only not limited to illustrate the technical solution of the utility model, all without departing from this
Any modification of utility model spirit and scope or equivalent substitution, it all should cover the scope in technical solutions of the utility model
It is interior.
Claims (10)
1. a kind of track lamp, including orbit portion and at least one lamp body module for being installed on orbit portion, the orbit portion include
Rail portion, and the orbitrap electrodes being arranged in rail portion, the lamp body module are provided with the connection end electrically connected with orbitrap electrodes
Son, it is characterised in that：The rail portion is provided with electrode isolation portion between orbitrap electrodes, and the electrode isolation portion is close to lamp body
One end of module is provided with engaging portion, and the lamp body module is additionally provided with the elastic buckles coordinated with engaging portion, the connection terminal
Be arranged on the outside of elastic buckles, the elastic buckles and engaging portion with reference to when generation elastic deformation and make connection terminal tight with orbitrap electrodes
Close abutting.
A kind of 2. track lamp according to claim 1, it is characterised in that：The rail portion is set in the outside of orbitrap electrodes
There is the insulating protection wall relative with electrode isolation portion, the insulating protection wall is provided with the groove of setting-in orbitrap electrodes.
A kind of 3. track lamp according to claim 1, it is characterised in that：The lamp body module includes lamp socket, located at lamp socket
On light source portion, and the diffuser being located at outside light source portion being connected with lamp socket, the lamp socket be provided at both ends with the bullet
The plug of property button.
A kind of 4. track lamp according to claim 3, it is characterised in that：The incidence surface and/or exiting surface of the diffuser
It is provided with the concaveconvex structure for increasing light refraction.
A kind of 5. track lamp according to claim 4, it is characterised in that：The incidence surface is provided with multiple along guide rail minister
Spend the bar-shaped trough of direction extension.
A kind of 6. track lamp according to claim 3, it is characterised in that：The light source portion is along rail portion length direction
Both ends extend respectively to the outer end plate of both sides plug, the diffuser along the both ends on rail portion length direction extend respectively to
The outer end plate of both sides plug is concordant and forms blind end.
A kind of 7. track lamp according to claim 3, it is characterised in that：The diffuser is integrally formed with lamp socket
Lower light trough, the cavity for clamping light source portion is provided with the lower light trough.
A kind of 8. track lamp according to claim 1, it is characterised in that：The orbit portion also includes what is be connected with rail portion
For the mounting bracket being installed on rail portion on face to be installed.
A kind of 9. track lamp according to claim 8, it is characterised in that：The mounting bracket is provided with along rail portion length
Direction extension is used to clamp the buckling groove of rail portion, and the shoe abutted against with rail portion is provided with the buckling groove.
A kind of 10. track lamp according to claim 8, it is characterised in that：The back side of the mounting bracket is provided with edge and led
The chute for being used to be embedded in magnet of rail portion length direction extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210808.8U CN207146128U (en) | 2017-09-20 | 2017-09-20 | A kind of track lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210808.8U CN207146128U (en) | 2017-09-20 | 2017-09-20 | A kind of track lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207146128U true CN207146128U (en) | 2018-03-27 |
Family
ID=61668262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721210808.8U Withdrawn - After Issue CN207146128U (en) | 2017-09-20 | 2017-09-20 | A kind of track lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207146128U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559676A (en) * | 2017-09-20 | 2018-01-09 | 珠海拓比光科技有限公司 | A kind of track lamp |
| CN115681911A (en) * | 2022-08-01 | 2023-02-03 | 欧普照明股份有限公司 | Buckle structure and conductive module |
-
2017
- 2017-09-20 CN CN201721210808.8U patent/CN207146128U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559676A (en) * | 2017-09-20 | 2018-01-09 | 珠海拓比光科技有限公司 | A kind of track lamp |
| WO2019056434A1 (en) * | 2017-09-20 | 2019-03-28 | 珠海拓比光科技有限公司 | Track light |
| CN107559676B (en) * | 2017-09-20 | 2020-03-20 | 珠海拓比光科技有限公司 | Track lamp |
| CN115681911A (en) * | 2022-08-01 | 2023-02-03 | 欧普照明股份有限公司 | Buckle structure and conductive module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180327 Effective date of abandoning: 20200320 |