CN105703534B - Reversing arrangement for motor - Google Patents
Reversing arrangement for motor Download PDFInfo
- Publication number
- CN105703534B CN105703534B CN201510901641.9A CN201510901641A CN105703534B CN 105703534 B CN105703534 B CN 105703534B CN 201510901641 A CN201510901641 A CN 201510901641A CN 105703534 B CN105703534 B CN 105703534B
- Authority
- CN
- China
- Prior art keywords
- brush
- reversing arrangement
- bus
- bar
- receiving element
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/148—Slidably supported brushes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/383—Brush holders characterised by the electrical connection to the brush holder
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
- Dc Machiner (AREA)
Abstract
The present invention relates to a kind of reversing arrangement for motor, which there is the brush in brushgear housing, brushgear housing to be equipped with the receiving element for keeping bus-bar and brush plate.The receiving hole of receiving element has more axially extending than the thickness bigger of the bus-bar of insertion or brush plate.
Description
Technical field
The present invention relates to a kind of reversing arrangements as described in the preamble for motor according to claim 1.
Background technology
The reversing arrangement for becoming known for motor is used to transmit electric current and redirect to the armature coil of rotor-side.It should
Reversing arrangement includes commutator (Kollektor) or commutator in rotor-side, is arranged to distribution on periphery with multiple
Commutator segment, againsts the carbon brush being powered for being maintained at stator side at commutator segment, which keeps in which can move radially
In brushgear housing.Brushgear housing is arranged at brush plate, the brush plate electrical grounding.By bus-bar realize be powered, brush plate and
Bus-bar is respectively configured to plate-like and is axially located at the side of brushgear housing set relatively.Such as in document DE 20
2007 013 137 U1, DE 10 2,010 063 688 describe this type in A1 or 10 2,009 002 725 A1 of DE
Reversing arrangement.
A kind of application of reversing arrangement is the starting electric notor for starting device, for starting internal combustion engine.In order to answer
In start stop system, it is necessarily designed to for multiple starting process through frayed carbon brush.
Invention content
It is an object of the present invention to so construct reversing arrangement by simple structural measure, that is, when ensureing long operation
Between.
According to the present invention, which is realized by the feature of claim 1.Dependent claims provide suitable improvement side
Case.
Reversing arrangement use according to the present invention is in motor, for being powered and generating for the armature winding of rotor-side
Electromagnetic field, the electromagnetic field with either by permanent magnet or by can electric excitation stator side coil generate stator side field it is mutual
Effect.
Reversing arrangement is for example applied in the starting electric notor of starting device, to start internal combustion engine.Here, starter motor is driven
Dynamic starter pinion, the starter pinion are engaged with the gear ring of internal combustion engine.Starter pinion is permanently bonded in gear ring,
Or by means of starter relay with gear ring be pulled be disengaged position and promote with the bonding station of gear ring it
Between adjust.Starting device can be applicable in the range of start stop system, which must be competent at multiple starting process.
Reversing arrangement includes the commutator being connected with the armature spindle of motor or commutator and guides electric current in stator side
Brush, brush sticks at the circumferential surface of commutator and is contained in brushgear housing.Advantageously, brush is with relative to the motor longitudinal axis
The mode that line can move radially is supported in brushgear housing and the power of spring element that is applied on brush is towards commutator
Loading force on the direction of circumferential surface.
Brush sticks at the commutator segment of commutator, these commutator segments are electrical each other by Separation in circumferential direction
It detaches and is electrically connected with armature winding.
Brushgear housing has receiving element, is used to be connected with brush plate and bus-bar.Preferably, receiving element is axially
(refer to motor longitudinal axis) positioned at the outside that the opposite of brushgear housing is set, to which correspondingly, brush plate and bus-bar are along axis
It is contained in the receiving element of each brushgear housing to outside that is opposite and setting.Brush plate is arranged and is maintained at the case of motor
And electrical grounding (cathode).Bus-bar by positive electricity load (anode) and equally can with the case of motor is mechanically connected connects.
Brush is arranged in pairs, wherein corresponding there are one brushes and bus-bar to be electrically connected, and in diametrically (diametral) phase
Pair and the brush set is electrically connected with brush plate.Four or six brushes are for example arranged in a manner of being distributed on periphery, wherein
Brush is arranged in a manner of alternating polarity.
Brush sticks at the commutator segment of commutator, these commutator segments are mutually electrical by Separation in circumferential direction
It detaches and is electrically connected with armature winding.For this purpose, the commutator segment of commutator can be connected by coupling twisted wire with armature winding
It connects.
According to advantageous embodiment, on the side of armature winding and connection twisted wire, bus-bar is located at brush
In the relevant receiving element of seat.It is axially opposed and on the side set, other appearances in the outside for being arranged in brushgear housing
It receives and accommodates brush plate in element.But in principle, opposite embodiment is also contemplated for, wherein, brush plate is arranged in electricity
At brush holder on the side of armature winding, and bus-bar is arranged on the side of the separate armature winding at brushgear housing.
According to advantageous embodiment, the receiving element at brushgear housing is implemented as angularThe horn-like part includes axial and radial direction section, and L-shaped is collectively formed and limits radially
The receiving hole for accommodating bus-bar or brush plate being outwardly or inwardly directed toward.Advantageously, such angular receiving member
Part is being diametrically opposed to one another positioned at two of brushgear housing at the axial end side set, and to not only bus-bar but also brush plate can hold
It is contained in receiving element.In this embodiment, brushgear housing is mechanically installed into the bus-bar and electricity being separated from each other in an axial direction
On brush board.
The receiving hole of receiving element, preferably all receiving elements at at least side of brushgear housing has than insertion
The thickness bigger of bus-bar or brush plate it is axially extending.Correspondingly, bus-bar or brush plate are maintained at receiving with axial gap
In the receiving hole of element.The gap realizes brushgear housing and is surrounded transverse to motor longitudinal axis direction together with brush therein is contained in
Axis inclination.The spring force of the radial effect for being tilted through spring element of brushgear housing realizes that the spring element is arranged in
In brushgear housing and brush is radially against the circumferential surface loading force of commutator.The reaction force of spring element radially piezoelectricity
Brush holder, wherein have the point of rotation of spacing for example at carrier board axially with respect to spring position, away from armature
It is contained in the receiving element of brushgear housing on side.Carrier board is preferably brush plate, but if possible also can be in the position
Place's arrangement bus-bar.
By making brushgear housing tilt, stability is realized, thereby while the region of the receiving portion in bus-bar and/or brush plate
In there is gap, brushgear housing to be arranged in a manner of secure fit and eliminate undesirable freedom of motion.Preferably, it is tilted in this
It is not more than several years, such as 5 ° maximum, maximum 3 ° or 1 ° maximum in region.
It can be appropriately not only bus-bar but also brush plate is maintained at respectively with axial gap in the receiving element attached
Receiving hole in.This simplifies assembly, wherein in spite of gap, is also to provide the secure fit of brushgear housing.
According to the suitable embodiment of another angular shape more particularly to receiving element, receiving hole is in radial direction
On be configured to it is open.It can be the appropriately receiving hole of receiving element at the side that the axially opposed of brushgear housing is set
It is radially directed opposite direction.This simplifies and facilitates the inclination of brushgear housing, while the elimination of associated movement degree of freedom.For example,
On the side in face of armature, the receiving hole in receiving element is configured to open wide radially inward, and on opposite side
It is configured to radially open wide.Also can realize opposite embodiment, wherein, receiving hole in receiving element in face of
It is configured to radially open wide on the side of armature, and is configured to open wide radially inward on opposite side.
According to another suitable embodiment, receiving element and brushgear housing construction are integral.Brushgear housing is by the material that is electrically insulated
Material is made and is for example made of plastics or agglomerated material.
According to another suitable embodiment, brush is implemented as Multilayer brush, in the circumferential direction of commutator or rotation side
It is made of upwards at least two different layers.These layers are for example configured to performance layer and are configured to commutation layer, and resistance can be
Different；Expediently, performance layer has resistance more smaller than commutation layer.Performance layer is for example located at front along direction of rotation, and
Commutation layer is located behind.Advantageously, all layers of brush all extend in entire axial brush length.
Description of the drawings
The advantages of can obtaining other from other claims, drawings, description and drawings and suitable embodiment.Its
In：
Fig. 1 shows that the starting device for internal combustion engine with starter pinion, starter pinion can pass axially through
Starter relay adjusts and rotatably by starting electric motor drive,
Fig. 2 shows the longitudinal section of motor, which is used for example as starting electric notor, also shows reversing arrangement,
Fig. 3 shows the brushgear housing of the reversing arrangement in inclined installation site to amplify,
Fig. 4 shows the section of Multilayer brush.
In the accompanying drawings, identical component is equipped with identical reference numeral.
Specific implementation mode
Starting device 1 shown in FIG. 1 for internal combustion engine has starter pinion 2, should in order to start internal combustion engine 4
Starter pinion is engaged with the gear ring 3 of internal combustion engine.Starter pinion 2 is axially movable twelve Earthly Branches as indicated by double-head arrow
It holds in drive shaft 5, wherein starter pinion 2 can not be coupled with 5 phase of drive shaft with the relative rotation, such as pass through multi start thread
Mutually couple.Starter pinion 2 in the non-working position of the gear ring 3 with internal combustion engine 4 being pulled and is pushed away by starter relay 6
Into bonding station between adjust, starter relay 6 is configured to electromagnetic type and includes the relay winding 7 that can be powered and past
Compound armature 8, the reciprocating armature are axially pulled in when relay winding 7 is powered into the relay winding.It is reciprocating
Armature 8 is kinematically coupled with 2 phase of starter pinion by engaging lever 9, to which reciprocating armature 8 is in resting position and adjustment
It is corresponding between non-working position and bonding station that axial adjustment movement between position is converted to starter pinion 2
Axial adjustment campaign.
The drive motion for passing to the rotation in drive shaft 5 or on starter pinion 2 is generated by means of starting electric notor 11, should
Electric notor is started to couple with 5 phase of drive shaft by being especially implemented as the transmission mechanism 12 of planetary gear mechanism.It is manipulating
By drive shaft 5 and thus also starter pinion 2 is placed in rotation when starting electric notor 11.Starter motor 11 is for example configured to
The motor of the permanent-magnet-field with permanent magnet and with being connected with armature spindle with armature winding on the inside of stator
Armature, armature winding are powered by reversing arrangement.
It is assigned adjusting or controller 10 for starting device 1, starter relay 6 and starter motor 11 are controlled by it
Function.
In the case that reciprocating armature 8 is axially adjusted movement when manipulating starter relay 6, reaching adjustment position
By making switch element kinematically couple the electricity connected for starter motor 11 with the adjustment movement of reciprocating armature 8 when setting
Stream to 11 setting in motion of starter motor and is rotatably driven drive shaft 5 and starter pinion 2.
Starting device 1 is equipped with free wheel device provided, is configured to idler wheel freewheel (Rollenfreilauf) 14.Engaging lever 9
It is applied on spring element 13, axially with the drivening piece 15 of power load idler wheel freewheel 14, wherein idler wheel freewheel 14
Pinion gear flange or idler wheel flange 16 and 15 collective effect of drivening piece, and pinion gear flange 16 is configured to starter pinion 2
One.Idler wheel freewheel 14 allows to transmit rotary motion on the driving direction for starting electric notor 11.However, if in internal combustion engine
The rotary speed of gear ring 3 is very high after 4 startings so that driving direction is reversed, is eliminated in drivening piece 15 by idler wheel freewheel 14
Kinematic between pinion gear flange 16 couples.
Fig. 2 locally shows the longitudinal section in the region of reversing arrangement 25 of motor 11.Motor 11 is forming stator
Case and there is armature spindle 23 in end side is by 21 closed case 20 of commutator bearing cap, which rotatably supports
In bearing 22 in bearing cap 21.Armature 24 is fixedly connected with armature spindle 23, and armature is powered by reversing arrangement 25
Armature winding carrier.
Commutator 26 and brush carrier or brush device 27, brush carrier or brush device of the reversing arrangement 25 including rotor-side
Including being arranged in the brush plate 28 of stator side and brushgear housing 29 and being contained in brush 30 therein.Multiple brushes 30 divide on periphery
Accordingly it is arranged in brushgear housing 29 to cloth, wherein corresponding two form associated brush pair in the brush for being diametrically opposed to one another and setting,
One of brush has anode, and brush that is opposite and setting has cathode.Each brush 30 accommodates in which can move radially
Direction in brushgear housing 29 and by the power for the spring element 31 being supported in brushgear housing 29 radially towards commutator 26 adds
Carry power.Brush 30 is contacted positioned at the end side of inner radial with the circumferential surface of commutator 26, side of the commutator to be distributed on periphery
Formula have multiple commutator segments, mutual electrical separation and respectively by couple twisted wire 37 be connected with the armature winding of armature 24
It connects.Connection twisted wire 37 is connected by retaining element 38 with the commutator segment of commutator 26 in portion at one end.Connection twisted wire 37 exists
The other end is connected with the winding overhang of armature winding；But such embodiment is also feasible, that is, wherein, connection
Twisted wire 37 is connect to be formed by the winding overhang of armature winding.Connection twisted wire 37 on the circumferential surface of commutator 26 is axially only
Extend on the relatively short partial-length of commutator 26.
There are multiple permanent magnets 32 for being distributed on periphery at the inside of case 20, it is mutual with the field of armature winding
Effect.
Brushgear housing 29 is equipped with angular receiving element 35, the receiving element and brushgear housing on its outside in face of armature 24
29 implement integrally.Receiving element 35 is implemented L-shaped and has the receiving hole being radially inwardly directed towards, annular bus-bar 36
It is inserted into the receiving hole.
Bus-bar 36 and brush plate 28 are axially located on the outside of brushgear housing 29 set relatively.Brush plate 28 also accommodates
In angular receiving element (Fig. 3).
Brush carrier or brush device 27 in case 20 are shown with the amplification in obliquity in figure 3, are
Illustration purpose, is shown in an exaggerated way.Brushgear housing 20 surrounds the axis radially to stretch relative to motor longitudinal axis and tilts.
Bus-bar 36 is inserted into the receiving element 35 openly constructed radially inward, wherein the axial direction of the receiving hole of receiving element 35
Extend the thickness that (being looked up in the side of motor longitudinal axis) is more than bus-bar 36, to which bus-bar 36 is contained in axial gap
In receiving element 35.It is equally applicable in axially opposed and on the side set receiving element 35, brush plate 28 is inserted into the side
In.Not only it is contemplated that for bus-bar 36 and for the different size of gap in the receiving element 35 of brush plate 28, also may be used
Consider the gap of same size.
Radial load is applied on the brush 30 in brushgear housing 29 by spring element 31, wherein passes through the anti-of brushgear housing 29
The active force radially loading force on the direction of the inner wall of case 20.Brushgear housing 29 may be disposed to relative in case 20
Wall has distance.Reaction force is transmitted to by the receiving element 35 of brushgear housing 29 on brush plate 28, wherein accommodates brush plate 28
Receiving element 35 is configured to radially open wide.Especially between sufficiently large in the receiving element 35 of bus-bar 36
The gap and sufficiently large gap in the receiving element 35 for brush plate 28 allows showing in an exaggerated manner for brushgear housing 29
The inclination gone out, wherein all freedom of motion of the brushgear housing 29 in case are eliminated in inclined state.Thereby it is ensured that
The reliable and fixed cooperation of brushgear housing 29.
As can be obtained from Fig. 2 and Fig. 3 combinations Fig. 4, brush 30 is configured to two-layer equation brush and includes two
Layer 30a and 30b, the two layers are different from each other in terms of its material property.Two layers 30a and 30b are fixedly connected to each other, layer
30a is located at front along direction of rotation and is configured to performance layer, and commutation layer is formed along the layer 30b that direction of rotation is located behind.Phase
Ying Di, in revolution, performance layer 30a is contacted first with the commutator segment of commutator 26 and and then commutate layer 30b ability and correlation
Commutator segment contact.Performance layer 30a especially has resistance more smaller than commutation layer 30b.The phase of two layers 30a, 30b in brush
Extend on same axial length.
The described embodiment of brush is related to all brushes of reversing arrangement.According to embodiment, in reversing arrangement
In the brush of different number, such as four or six brushes may be present.Brush plate 28 can be clamped in end side and the bearing of case 20
Between lid 21.But also it is possible that brush plate is screwed at case or at bearing cap.
In addition, the electric excitation of motor 11 is also contemplated for, to which electric winding to be arranged in the inside of case 20 instead of permanent magnet
Place.Instead of be arranged in motor 11 on the side of bearing cap 21, reversing arrangement may be arranged at axially opposed when necessary
And on the side set.
Claims (12)
1. a kind of reversing arrangement for motor, which carries the commutator (26) being connected with armature spindle (23) and draws
The brush (30) of electrical conduction current, the brush are sticked at the circumferential surface of the commutator (26) and are contained in brushgear housing (29),
The brushgear housing is connected with brush plate (28) and is connected with bus-bar (36), wherein the brush (30) is by spring element
Direction loading force of the part (31) to the commutator (26), which is characterized in that the bus-bar (36) and/or the brush plate
(28) it is respectively received in the receiving hole of the receiving element (35) at the brushgear housing (29), wherein opposite motor longitudinal axis
(34) for, the receiving hole of the receiving element (35) has than the bus-bar (36) of insertion or the thickness of brush plate (28)
Bigger it is axially extending.
2. reversing arrangement according to claim 1, which is characterized in that be applied not only to the receiving element of the bus-bar (36)
(35) receiving hole and the receiving hole of the receiving element (35) for the brush plate (28) have the confluence than insertion
Arrange the axially extending of the axial width bigger of (36) or brush plate (28).
3. reversing arrangement according to claim 1 or 2, which is characterized in that the bus-bar (36) and the brush plate
(28) axial gap in different sizes is contained in the corresponding receiving hole of the receiving element (35).
4. reversing arrangement according to claim 3, which is characterized in that with the brush plate (28) in its receiving element (35)
In compare, the bus-bar (36) is contained in the axial gap of bigger in the receiving element (35) attached.
5. reversing arrangement according to claim 1 or 2, which is characterized in that the bus-bar (36) is arranged in the brush
The outside of seat (29).
6. reversing arrangement according to claim 5, which is characterized in that the receiving member in the outside of the brushgear housing (29)
Part (35) is configured to angular receiving section, and the bus-bar (36) is inserted into the section of described accommodation section.
7. reversing arrangement according to claim 1 or 2, which is characterized in that the receiving hole of the receiving element (35) is in diameter
It is configured to on direction open.
8. reversing arrangement according to claim 7, which is characterized in that in the side that the axially opposed of brushgear housing (29) is set
Receiving hole at portion is configured to open on diametrically opposite direction.
9. reversing arrangement according to claim 1 or 2, which is characterized in that the brush (30) is configured to Multilayer brush
And there are at least two different layers (30a, 30b).
10. reversing arrangement according to claim 1, which is characterized in that the reversing arrangement is for starting device (1)
The reversing arrangement of starter motor (11).
11. a kind of motor, with reversing arrangement according to any one of claim 1 to 10 (25).
12. a kind of starting device of internal combustion engine, with motor according to claim 11 as starter motor (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014225391.8 | 2014-12-10 | ||
| DE102014225391.8A DE102014225391A1 (en) | 2014-12-10 | 2014-12-10 | Commutation device for an electrical machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105703534A CN105703534A (en) | 2016-06-22 |
| CN105703534B true CN105703534B (en) | 2018-08-07 |
Family
ID=56082417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510901641.9A Expired - Fee Related CN105703534B (en) | 2014-12-10 | 2015-12-09 | Reversing arrangement for motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105703534B (en) |
| DE (1) | DE102014225391A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406963A (en) * | 1977-10-28 | 1983-09-27 | Interelectric Ag | Electrical machine |
| CN1449093A (en) * | 2002-03-29 | 2003-10-15 | 三菱电机株式会社 | Rotary motor |
| CN101159360A (en) * | 2006-10-06 | 2008-04-09 | 雷米国际有限公司 | Dynamoelectric machine brush holder assembly and met |
| CN102460909A (en) * | 2009-04-29 | 2012-05-16 | 罗伯特·博世有限公司 | Brush apparatus for an electric machine and electric machine |
| CN103296825A (en) * | 2012-02-27 | 2013-09-11 | 株式会社美姿把 | Motor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0728519B2 (en) * | 1987-05-27 | 1995-03-29 | 株式会社日立製作所 | DC motor with built-in winding ignition prevention device |
| DE4241405B4 (en) * | 1992-12-09 | 2006-04-06 | Robert Bosch Gmbh | Noise-isolated brush holder |
| EP1005115A1 (en) * | 1998-11-27 | 2000-05-31 | Siemens Aktiengesellschaft | Hammer brush holder with anti-tilt security mechanism |
| JP2007124726A (en) * | 2005-10-24 | 2007-05-17 | Toshiba Tec Corp | Commutator motor |
| DE202007013137U1 (en) | 2007-09-18 | 2009-05-14 | Hoffmann & Co. Elektrokohle Ag | Brushing apparatus of an electric machine |
| DE102010063688A1 (en) | 2010-12-21 | 2012-06-21 | Robert Bosch Gmbh | Brush apparatus for an electric machine |
-
2014
- 2014-12-10 DE DE102014225391.8A patent/DE102014225391A1/en not_active Withdrawn
-
2015
- 2015-12-09 CN CN201510901641.9A patent/CN105703534B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406963A (en) * | 1977-10-28 | 1983-09-27 | Interelectric Ag | Electrical machine |
| CN1449093A (en) * | 2002-03-29 | 2003-10-15 | 三菱电机株式会社 | Rotary motor |
| CN101159360A (en) * | 2006-10-06 | 2008-04-09 | 雷米国际有限公司 | Dynamoelectric machine brush holder assembly and met |
| CN102460909A (en) * | 2009-04-29 | 2012-05-16 | 罗伯特·博世有限公司 | Brush apparatus for an electric machine and electric machine |
| CN103296825A (en) * | 2012-02-27 | 2013-09-11 | 株式会社美姿把 | Motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105703534A (en) | 2016-06-22 |
| DE102014225391A1 (en) | 2016-06-16 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180131 Address after: Stuttgart, Germany Applicant after: SEG Automotive Germany GmbH Address before: Stuttgart Applicant before: ROBERT BOSCH GmbH |
|
| 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: 20180807 Termination date: 20211209 |