CN102570734A - Method for overlaying double radial magnetic field linear rotating motor stators with high starting thrust force - Google Patents
Method for overlaying double radial magnetic field linear rotating motor stators with high starting thrust force Download PDFInfo
- Publication number
- CN102570734A CN102570734A CN2012100180838A CN201210018083A CN102570734A CN 102570734 A CN102570734 A CN 102570734A CN 2012100180838 A CN2012100180838 A CN 2012100180838A CN 201210018083 A CN201210018083 A CN 201210018083A CN 102570734 A CN102570734 A CN 102570734A
- Authority
- CN
- China
- Prior art keywords
- utmost point
- silicon steel
- steel sheet
- stator
- type silicon
- 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.)
- Granted
Links
Images
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a method for overlaying double radial magnetic field linear rotating motor stators with high starting thrust force. A stator iron core of a linear rotating stepper motor is provided with P pairs of poles, and is formed by overlaying two silicon steel sheets. The method comprises the following steps of: overlaying a polar tooth on an M type silicon steel sheet to form a first magnetic pole pair; and overlaying an N type silicon steel sheet, forming a first magnetic pole tooth pair and an adjacent second magnetic pole tooth pair simultaneously, rotating by a polar distance away from a first overlaying position, and overlaying an M type silicon steel sheet for serving as a second magnetic pole tooth pair till stator magnetic pole overlaying of a Pth magnetic pole pair is completed and the length of the stator iron core is met. The method is suitable for a stator designing and molding technology of a cylindrical linear rotating stepper reluctance motor with high start linear thrust force. The stator can be taken as a stator of the conventional cylindrical linear reluctance stepper motor as well as a stator of a linear rotating reluctance stepper motor. The method is simple, and the linear starting thrust force can be enhanced greatly.
Description
Technical field
The present invention relates to a kind of stator structure design, particularly a kind of high starting radial thrust magnetic field linear rotary electric machine biplate laminates method.
Background technology
The radial magnetic field cylinder-shape linear stepping motor that the existing monolithic rotation technology of laminating forms and the magnetic structure of straight-line rotating stepper motor; There is 2P magnetic pole in each cross section of its stator; 1 pair of very tooth can only be arranged; Stator tooth is apart from (P-1) times that be rotor slot-pitch, thus straight line to play dynamicthrust less.
Summary of the invention
The present invention be directed to present linear stepping motor straight line and play the little problem of dynamicthrust, proposed a kind of high starting radial thrust magnetic field linear rotary electric machine biplate and laminated method, can to produce 2 pairs be the utmost point of the utmost point tooth stator cross section of 2P magnetic pole.Stator tooth distance and rotor slot-pitch, slot pitch equate.Under the identical condition of other parameters of motor, can increase substantially straight line and play dynamicthrust like this, the application of extensive this type of motor of popularization is had extremely important meaning.
Technical scheme of the present invention is: a kind of high starting radial thrust magnetic field linear rotary electric machine biplate laminates method, specifically comprises the steps:
1) the linear stepping motor stator core has P to the utmost point, is formed by stacking two kinds of silicon steel sheets, and a kind of M type silicon steel sheet comprises stator yoke, magnetic pole of the stator, the 1 pair of utmost point tooth and (P-1) to utmost point groove; Another kind of N type silicon steel sheet comprises stator yoke, magnetic pole of the stator, the 2 pairs of utmost point teeth and (P-2) to utmost point groove; M type silicon steel sheet is identical with the shape of utmost point groove with the utmost point tooth of N type silicon steel sheet, and the polar arc that internal diameter is big forms the utmost point groove of stator core, and the polar arc that internal diameter is little forms the utmost point tooth of stator core;
2) the stator poles tooth of radial magnetic field linear stepping motor stator core, utmost point groove queueing discipline are: utmost point tooth, the utmost point groove of each magnetic pole of stator are arranged in order along stator shaft orientation; The width of utmost point groove, utmost point tooth satisfies following formula: stator shaft orientation utmost point tooth pitch is
; The stator shaft orientation utmost point facewidth
, utmost point groove width
; The utmost point facewidth
;
3) utmost point groove silicon steel sheet sheet number of each magnetic pole of stator is that number is
for the silicon steel sheet sheet of
, utmost point tooth: silicon steel sheet thickness is
, the silicon steel sheet sheet number of the silicon steel sheet sheet number of stator poles groove
, utmost point tooth is
;
4) biplate is rotary shifted laminates, and P carries out according to the magnetic pole of the stator logarithm:
The first step: the first pair pole tooth that forms stator with 1 pair of utmost point tooth of M type silicon steel sheet a slice;
Second step: fold on first step M type silicon steel sheet with N type silicon steel sheet a slice, 2 pairs of utmost point teeth of N type silicon steel sheet continue to form the first pair pole tooth, form second pair of adjacent utmost point tooth clockwise simultaneously;
The 3rd step: turn over a pole span with M type silicon steel sheet a slice clockwise than the first step, fold on the second step N type silicon steel sheet, 1 pair of utmost point tooth of M type silicon steel sheet, continuation forms second pair of utmost point tooth of stator;
The 4th step: turn over a pole span with N type silicon steel sheet a slice clockwise than second step, fold on the 3rd step M type silicon steel sheet, 2 pairs of utmost point teeth of N type silicon steel sheet continue to form second pair of utmost point tooth, form the 3rd pair of adjacent utmost point tooth clockwise simultaneously;
The 5th step: turn over a pole span with M type silicon steel sheet a slice clockwise than the 3rd step, fold on the 4th step N type silicon steel sheet, 1 pair of utmost point tooth of M type silicon steel sheet, continuation forms the 3rd pair of utmost point tooth of stator;
The 6th step: turn over a pole span clockwise than the 4th step with N type silicon steel sheet a slice; Fold on the 5th step M type silicon steel sheet; 2 pairs of utmost point teeth of N type silicon steel sheet continue to form the 3rd pair of utmost point tooth; And the like, get back to the position of the first step up to M type silicon steel sheet position, accomplish once rotation; The angle θ of each rotation is a pole span, i.e.
;
5) repeating step 4) up to the length requirement of the iron core that satisfies stator.
Beneficial effect of the present invention is: the high starting of the present invention radial thrust magnetic field linear rotary electric machine biplate laminates method, is applicable to the stator design and the forming technique of the cylindrical linear rotation stepping reluctance motor of high starting linear thrust.This stator both can be used as the stator of conventional drum type brake straight-line magneto resistance stepping motor, also was applicable to the stator of straight line rotation magnetic resistance stepping motor.Can increase substantially straight line and play dynamicthrust, be that a kind of structural approach is simple, the widely applicable novel stator forming technique of height starting linear thrust.
Description of drawings
Fig. 1 is the high starting of the present invention radial thrust magnetic field linear rotary electric machine core structure figure;
Fig. 2 laminates M sections core lamination figure in the method for the high starting of the present invention radial thrust magnetic field linear rotary electric machine biplate;
Fig. 3 laminates N sections core lamination figure in the method for the high starting of the present invention radial thrust magnetic field linear rotary electric machine biplate;
Fig. 4 laminates method first step AA for the high starting of the present invention radial thrust magnetic field linear rotary electric machine biplate
,Magnetic pole is the location drawing that laminates of utmost point tooth;
Fig. 5 laminates second step of method AA for the high starting of the present invention radial thrust magnetic field linear rotary electric machine biplate
,And BB
,Magnetic pole be utmost point tooth laminate with other magnetic poles be utmost point groove structure chart;
Fig. 6 laminates the 3rd step of method BB for the high starting of the present invention radial thrust magnetic field linear rotary electric machine biplate
,Magnetic pole be utmost point tooth laminate with other magnetic poles be utmost point groove structure chart;
Fig. 7 laminates the 4th step of method BB for the high starting of the present invention radial thrust magnetic field linear rotary electric machine biplate
,And CC
,Magnetic pole be utmost point tooth laminate with other magnetic poles be utmost point groove structure chart;
Fig. 8 laminates the 5th step of method CC for the high starting of the present invention radial thrust magnetic field linear rotary electric machine biplate
,Magnetic pole be utmost point tooth laminate with other magnetic poles be utmost point groove structure chart;
Fig. 9 laminates the 6th step of method CC for the high starting of the present invention radial thrust magnetic field linear rotary electric machine biplate
,And AA
,For utmost point tooth laminate with other magnetic poles be utmost point groove structure chart.
Embodiment
The stator core lamination of the cylinder-shape linear stepping motor of high starting linear thrust radial magnetic field or the straight-line rotating stepper motor of radial magnetic field is as shown in Figure 1.This stator core is to adopt the rotary shifted technology of laminating of biplate to form by two kinds of different silicon steel sheets of planform, and its stator structure has stator yoke, magnetic pole of the stator, stator tooth to constitute, and is as shown in Figure 1.Two kinds of laminations that form the radial magnetic field linear stepping motor stator core of high starting linear thrust are shaped as M type such as Fig. 2, the N type is shown in Figure 3.
The axial teeth groove calculation method of parameters of stator core magnetic pole:
1) stator shaft orientation groove width
: calculating formula is
(1); In the formula,
is the magnetic pole axial length; Z is the every utmost point number of teeth of stator.
2) the stator shaft orientation facewidth
: calculating formula is
(2); In the formula,
is tooth pitch.
The axial teeth groove queueing discipline of stator core magnetic pole: the teeth groove queueing discipline of radial magnetic field linear stepping motor stator core is: an axial tooth one groove is arranged in order along the stator pole shoes surface for the tooth of each magnetic pole, groove; And the width of groove
satisfies formula (1), and the width of tooth
satisfies formula (2).
Adopt the rotary shifted shape that laminates the stator silicon steel sheet of method of biplate: adopt the rotary shifted manufactured radial magnetic field linear stepping motor stator core that laminates of biplate, stator lasmination must be designed to two kinds of planforms, Fig. 2, shown in Figure 3.Fig. 2, Fig. 3 are for forming two kinds of used iron core steel discs of stator, i.e. M, N type lamination figure.
Adopt the rotary shifted lamination that laminates manufactured radial magnetic field linear stepping motor stator core stator of biplate P to be arranged to the utmost point, the lamination of two kinds of different structural forms.Wherein to have only 1 pair of utmost point be utmost point tooth to M type lamination, and all the other utmost points are utmost point grooves, and M type lamination is as shown in Figure 2.P=3 among Fig. 2; 6 magnetic poles are respectively
,
,
,
,
,
; Form three extremely right; Be respectively:
extremely to right for utmost point tooth,
,
are extremely right to being utmost point groove.It is utmost point teeth that N type lamination has only 2 pairs of utmost points, and all the other are utmost point groove, and are as shown in Figure 3.6 magnetic poles are respectively
,
,
,
,
,
among Fig. 3, form three extremely right.Be respectively:
extremely to extremely right to being utmost point tooth with
,
is extremely right to being utmost point groove.Each is identical to the shape of magnetic pole; Promptly
utmost point is extremely identical with
,
utmost point extremely identical with
,
utmost point is extremely identical with
.The polar arc that internal diameter is big forms the utmost point groove of stator core; Like
; The polar arc that internal diameter is little forms the utmost point tooth of stator core, like
.
The rotary shifted method that laminates of employing biplate forms the stator shaft orientation tooth, well width is to utilize silicon steel sheet thickness through calculating; The silicon steel sheet number that need calculate stator shaft orientation arc tooth respectively for
, the silicon steel sheet number of stator shaft orientation deep-slotted chip breaker for
with the mechanical angle
that once rotates, its computational methods are following:
1) dead axle to its calculating formula of the silicon steel sheet number
of arc tooth is:
(3); In the formula, D is the thickness of silicon steel sheet;
2) dead axle to its calculating formula of the silicon steel sheet number
of deep-slotted chip breaker is:
(4); In the formula, D is the thickness of silicon steel sheet;
3) being calculated as of an anglec of rotation:
(5); In the formula,
pole span for representing with mechanical angle.
Form the rotary shifted method that laminates of biplate of stator shaft orientation teeth groove: for radial magnetic field cylinder-shape linear stepping motor and straight-line rotating stepper motor, the rotary shifted method that laminates is carried out according to magnetic pole of the stator logarithm P.Its method step is for comprising:
The first step: motor stator P is AA to the utmost point (P=3)
,, BB
,, CC
,, with M type silicon steel sheet a slice
Extremely to the AA of stator
,Utmost point alignment is to stator AA
,Extremely, as shown in Figure 4 to for utmost point tooth laminates;
Second step: with N type silicon steel sheet a slice
Extremely to
Extremely to the AA of stator
,, BB
,Extremely to alignment, to the AA of stator
,, BB
,Extremely, as shown in Figure 5 to for utmost point tooth laminates;
The 3rd step: with M type silicon steel sheet a slice
Extremely to the BB of stator
,Utmost point alignment is than the first step pole span that turns clockwise, to BB
,Extremely, as shown in Figure 6 to for utmost point tooth laminates;
The 4th step: with the a-a of N type silicon steel sheet a slice
,Extremely to and b-b
,Extremely to the BB of stator
,, CC
,Extremely to alignment, than the second step pole span that turns clockwise, to the BB of stator
,, CC
,Extremely, as shown in Figure 7 to for tooth laminates;
The 5th step: with M type silicon steel sheet a slice
Extremely to the CC of stator
,Utmost point alignment is than the 3rd step pole span that turns clockwise, to CC
,Extremely, as shown in Figure 8 to for utmost point tooth laminates;
The 6th step: with the a-a of N type silicon steel sheet a slice
,Extremely to and b-b
,Extremely to the CC of stator
,, AA
,Extremely to alignment, than the 4th step pole span that turns clockwise, to the CC of stator
,, AA
,Extremely to laminating for utmost point tooth; Through laminating of a tooth pitch of above six steps completion, as shown in Figure 9.
The 7th step: it is inferior to repeat above six steps
, promptly satisfies the length requirement of the iron core of stator.
Claims (1)
1. one kind high starting radial thrust magnetic field linear rotary electric machine biplate laminates method, it is characterized in that, specifically comprises the steps:
1) the linear stepping motor stator core has P to the utmost point, is formed by stacking two kinds of silicon steel sheets, and a kind of M type silicon steel sheet comprises stator yoke, magnetic pole of the stator, the 1 pair of utmost point tooth and (P-1) to utmost point groove; Another kind of N type silicon steel sheet comprises stator yoke, magnetic pole of the stator, the 2 pairs of utmost point teeth and (P-2) to utmost point groove; M type silicon steel sheet is identical with the shape of utmost point groove with the utmost point tooth of N type silicon steel sheet, and the polar arc that internal diameter is big forms the utmost point groove of stator core, and the polar arc that internal diameter is little forms the utmost point tooth of stator core;
2) the stator poles tooth of radial magnetic field linear stepping motor stator core, utmost point groove queueing discipline are: utmost point tooth, the utmost point groove of each magnetic pole of stator are arranged in order along stator shaft orientation; The width of utmost point groove, utmost point tooth satisfies following formula: stator shaft orientation utmost point tooth pitch is
; The stator shaft orientation utmost point facewidth
, utmost point groove width
; The utmost point facewidth
;
3) utmost point groove silicon steel sheet sheet number of each magnetic pole of stator is that number is
for the silicon steel sheet sheet of
, utmost point tooth: silicon steel sheet thickness is
, the silicon steel sheet sheet number of the silicon steel sheet sheet number of stator poles groove
, utmost point tooth is
;
4) biplate is rotary shifted laminates, and P carries out according to the magnetic pole of the stator logarithm:
The first step: the first pair pole tooth that forms stator with 1 pair of utmost point tooth of M type silicon steel sheet a slice;
Second step: fold on first step M type silicon steel sheet with N type silicon steel sheet a slice, 2 pairs of utmost point teeth of N type silicon steel sheet continue to form the first pair pole tooth, form second pair of adjacent utmost point tooth clockwise simultaneously;
The 3rd step: turn over a pole span with M type silicon steel sheet a slice clockwise than the first step, fold on the second step N type silicon steel sheet, 1 pair of utmost point tooth of M type silicon steel sheet, continuation forms second pair of utmost point tooth of stator;
The 4th step: turn over a pole span with N type silicon steel sheet a slice clockwise than second step, fold on the 3rd step M type silicon steel sheet, 2 pairs of utmost point teeth of N type silicon steel sheet continue to form second pair of utmost point tooth, form the 3rd pair of adjacent utmost point tooth clockwise simultaneously;
The 5th step: turn over a pole span with M type silicon steel sheet a slice clockwise than the 3rd step, fold on the 4th step N type silicon steel sheet, 1 pair of utmost point tooth of M type silicon steel sheet, continuation forms the 3rd pair of utmost point tooth of stator;
The 6th step: turn over a pole span clockwise than the 4th step with N type silicon steel sheet a slice; Fold on the 5th step M type silicon steel sheet; 2 pairs of utmost point teeth of N type silicon steel sheet continue to form the 3rd pair of utmost point tooth; And the like, get back to the position of the first step up to M type silicon steel sheet position, accomplish once rotation; The angle θ of each rotation is a pole span, i.e.
;
5) repeating step 4) up to the length requirement of the iron core that satisfies stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210018083 CN102570734B (en) | 2012-01-20 | 2012-01-20 | Method for overlaying double radial magnetic field linear rotating motor stators with high starting thrust force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210018083 CN102570734B (en) | 2012-01-20 | 2012-01-20 | Method for overlaying double radial magnetic field linear rotating motor stators with high starting thrust force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102570734A true CN102570734A (en) | 2012-07-11 |
| CN102570734B CN102570734B (en) | 2013-09-25 |
Family
ID=46415398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210018083 Expired - Fee Related CN102570734B (en) | 2012-01-20 | 2012-01-20 | Method for overlaying double radial magnetic field linear rotating motor stators with high starting thrust force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102570734B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935091A (en) * | 2014-03-20 | 2015-09-23 | 舍弗勒技术股份两合公司 | Annular silicon steel sheet with separation structure, iron core and installation method |
| CN107332365A (en) * | 2017-07-31 | 2017-11-07 | 广东威灵电机制造有限公司 | Motor stator core stamping sheet, motor stator core and compressor |
| CN107482805A (en) * | 2017-07-31 | 2017-12-15 | 广东威灵电机制造有限公司 | Motor stator core stamping sheet, motor stator core and compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5315751A (en) * | 1990-10-24 | 1994-05-31 | International Business Machines Corporation | Method of fabricating a combined linear-rotary direct drive step motor |
| CN1094869A (en) * | 1993-04-27 | 1994-11-09 | 东方电机株式会社 | Linear pulse electric motor |
| CN1110024A (en) * | 1993-09-24 | 1995-10-11 | 东方电机株式会社 | Linear pulse motor |
| JPH08237933A (en) * | 1995-02-28 | 1996-09-13 | Oriental Motor Co Ltd | Linear motor |
| JP3220535B2 (en) * | 1992-12-14 | 2001-10-22 | オリエンタルモーター株式会社 | Linear pulse motor |
| CN101860130A (en) * | 2010-04-08 | 2010-10-13 | 上海理工大学 | Method for folding and compressing lamination of stator of radial magnetic field linear rotating motor through rotating and displacing |
-
2012
- 2012-01-20 CN CN 201210018083 patent/CN102570734B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5315751A (en) * | 1990-10-24 | 1994-05-31 | International Business Machines Corporation | Method of fabricating a combined linear-rotary direct drive step motor |
| JP3220535B2 (en) * | 1992-12-14 | 2001-10-22 | オリエンタルモーター株式会社 | Linear pulse motor |
| CN1094869A (en) * | 1993-04-27 | 1994-11-09 | 东方电机株式会社 | Linear pulse electric motor |
| CN1110024A (en) * | 1993-09-24 | 1995-10-11 | 东方电机株式会社 | Linear pulse motor |
| JPH08237933A (en) * | 1995-02-28 | 1996-09-13 | Oriental Motor Co Ltd | Linear motor |
| CN101860130A (en) * | 2010-04-08 | 2010-10-13 | 上海理工大学 | Method for folding and compressing lamination of stator of radial magnetic field linear rotating motor through rotating and displacing |
Non-Patent Citations (1)
| Title |
|---|
| 怡勇: "磁阻式直线旋转步进电机的直线运动磁场分析", 《微电机》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935091A (en) * | 2014-03-20 | 2015-09-23 | 舍弗勒技术股份两合公司 | Annular silicon steel sheet with separation structure, iron core and installation method |
| CN104935091B (en) * | 2014-03-20 | 2019-12-17 | 舍弗勒技术股份两合公司 | Annular silicon steel sheet with separation structure, iron core and installation method |
| CN107332365A (en) * | 2017-07-31 | 2017-11-07 | 广东威灵电机制造有限公司 | Motor stator core stamping sheet, motor stator core and compressor |
| CN107482805A (en) * | 2017-07-31 | 2017-12-15 | 广东威灵电机制造有限公司 | Motor stator core stamping sheet, motor stator core and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102570734B (en) | 2013-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102157998B (en) | Rotor of built-in permanent magnet motor and magnetic steel structural parameter determining method thereof | |
| CN104300755B (en) | Double-deck wound-rotor type Dual-stator brushless double-fed motor | |
| JP5450189B2 (en) | Method for manufacturing armature core | |
| CN104092342B (en) | A kind of magnetic resistance modulation system Dual-stator brushless double-fed motor | |
| CN110323863B (en) | Asymmetric mixed magnetic pole type permanent magnet motor | |
| JP2012115129A (en) | Rotor of synchronous reluctance machine and method for manufacturing rotor of synchronous reluctance machine | |
| CN105490476B (en) | For the single-phase winding technique method of p motor in axial magnetic field, winding construction, printed circuit board, motor | |
| CN101478210A (en) | Asymmetric groove shaped permanent synchronizing motor | |
| CN101860130B (en) | Method for folding and compressing lamination of stator of radial magnetic field linear rotating motor through rotating and displacing | |
| Palmieri et al. | High-speed scalability of synchronous reluctance machines considering different lamination materials | |
| CN102820757A (en) | Half-gear winding switch reluctance motor | |
| CN102570734B (en) | Method for overlaying double radial magnetic field linear rotating motor stators with high starting thrust force | |
| US10090720B2 (en) | Rotor comprising protruding webs | |
| JP2006230116A5 (en) | ||
| WO2023216635A1 (en) | Axial flux switched reluctance motor having wide and narrow stator poles, and control method therefor | |
| CN202068306U (en) | Three-phase permanent magnetic servo motor with void slot structure | |
| CN104471845B (en) | Stator component for electromagnetic machine or electromagnetic generator includes the winding and its production method of the rigid branch of at least one solid memder formula | |
| CN203313031U (en) | Super-strong new structure hybrid stepping motor | |
| CN202068307U (en) | Three-phase permanent-magnetic servo electric motor | |
| CN103780040A (en) | Outer rotor magnetic bridge type transverse magnetic flow permanent magnet synchronous motor | |
| CN103326534A (en) | Super-strong type hybrid stepping motor with new structure | |
| CN203014522U (en) | Synchronous reluctance motor rotor structure | |
| CN209402384U (en) | 10 pole three-phase permanent magnetic brushless motor of electric vehicle and 18 slot | |
| CN103222166B (en) | A kind of three-phase permanent-magnetic servo | |
| CN201975969U (en) | Three-phase permanent magnet servo motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20160120 |
|
| EXPY | Termination of patent right or utility model |