CN208656607U - Dual-gripper double-stator permanent magnet synchro traction machine - Google Patents
Dual-gripper double-stator permanent magnet synchro traction machine Download PDFInfo
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- CN208656607U CN208656607U CN201820870777.7U CN201820870777U CN208656607U CN 208656607 U CN208656607 U CN 208656607U CN 201820870777 U CN201820870777 U CN 201820870777U CN 208656607 U CN208656607 U CN 208656607U
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Abstract
The utility model discloses a kind of dual-gripper double-stator permanent magnet synchro traction machines, including first shell, second shell, the first stator module, the second stator module, the first rotor component, the second rotor assembly, encoder, brake etc., the permanent magnet of the first rotor component by annular, be radially disposed on the inner peripheral surface of brake rim, the permanent magnet of the second rotor assembly by annular, be radially disposed on the inner peripheral surface of traction sheave.First stator module and the interaction of the first rotor component generate torque, and the second stator module and the interaction of the second rotor assembly generate torque；First stator module and the second stator module can be powered load simultaneously, and can also individually be powered load, each stator module can drive rotor assembly to rotate.The dual-gripper double-stator permanent magnet synchro traction machine of the utility model is more more firm and compact in overall structure than the traction machine of traditional structure, improves the power density and traction lifting capacity of traction machine, solves the design challenges of heavy-duty traction machine.
Description
Technical field
The utility model relates to permanent magnetic synchronous traction machine technical field, in particular to a kind of dual-gripper double-stator permanent magnet is synchronous
Traction machine.
Background technique
With science and technology, the fast development of society, the use of elevator and demand are more and more, thus permanent-magnet synchronous traction
The application of machine is also more and more extensive.Traditional permanent magnetic synchronous traction machine is usually cantilevered outer-rotor structure, the axis of cantilever design
By very big bending moment, bending shaft deformation is easily led to, bearing service life is short.In order to improve the traction capacity of traction machine,
Common practice is by the very thick of axis design and to select biggish bearing, or the bearings at both ends of rotor assembly is separately mounted to
On the base and bracket of two sides, it is also less compact that both the above method usually can all increase the volume of traction machine, overall structure.And
Under normal conditions, in order to reduce building cost, computer room space all will not be very sufficient, thus just need to the structure of traction machine into
Row optimization design, makes that the small in size of traction machine, power density are big, traction capacity is strong as far as possible.
Utility model content
The technical problem to be solved by the utility model is to for above-mentioned skill present in existing permanent magnetic synchronous traction machine
Art problem and a kind of dual-gripper double-stator permanent magnet synchro traction machine is provided, which integrally ties
Structure is extremely compact, and the power density and traction capacity of traction machine can be improved under same volume.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of dual-gripper double-stator permanent magnet synchro traction machine, including first shell, second shell, the first stator module,
Two stator modules, the first rotor component, the second rotor assembly, encoder and brake；The first shell and second shell pair
It connects and is fixed together, first stator module is fixedly mounted on the first shell, and second stator module is fixedly mounted
On the second housing；The first rotor component includes several first permanent magnets and brake rim, if the first rotor component
Dry first permanent magnet is interlocked with annular and the pole N, S, is evenly arranged on the inner peripheral surface of the brake rim, is set on the brake rim
It is equipped with brake outer circumference surface；Second rotor assembly includes several second permanent magnets and traction sheave, and the of second rotor assembly
Two permanent magnets are in an annular manner and the pole N, S interlocks, is evenly arranged on the inner peripheral surface of traction sheave, and the traction sheave passes through fastening
Part is connect with the brake rim；The stationary part of the encoder is mounted in the second shell, the rotor of the encoder
It is partially installed on brake rim；The brake is mounted in the first shell, when brake, drives the brake, described
Brake outer circumference surface on brake rim is contacted with the brake friction to brake.
In a preferred embodiment of the utility model, it is provided in the first shell in first axis protrusion
Heart mounting portion and the prominent periphery mounting portion of an at least first axis；It is axially projecting that one second is additionally provided in the second shell
Central mounting portion and at least one second axially projecting periphery mounting portion, the prominent center installation of first axis in the first shell
Portion docks with the second axially projecting central mounting portion in the second shell and passes through fastener and connect, in the first shell
The prominent periphery mounting portion of first axis the second axially projecting periphery mounting portion corresponding in the second shell dock and lead to
Fastener is crossed to link together.
In a preferred embodiment of the utility model, one first stator module peace is provided in the first shell
It fills circumferential surface and the first stator module positioned at first stator module installation circumferential surface periphery installs ring cavity, in the second shell
On be provided with the second stator module installation circumferential surface and be looped around the second stator pack of second stator module installation circumferential surface periphery
Part installs ring cavity, and first stator module is fixed on the first stator module installation circumferential surface of the first shell and is received
In first stator module installation ring cavity, second stator module is mounted on the second stator module of the second shell
On installation circumferential surface and it is accommodated in the second stator module installation ring cavity；The brake rim includes coaxial with its inner peripheral surface
Cylinder support portion, the cylinder support portion axis is located at the excircle of the prominent central mounting portion of first axis of the first shell
On face.
In a preferred embodiment of the utility model, the cylinder support portion of the brake rim passes through inner bearing and outer shaft
It holds axis to be located on the outer circumference surface of the prominent central mounting portion of first axis of the first shell, the inner bearing and outer bearing point
The inner bearing end cap and outer bearing end cap progress axial limiting on inside and outside end not by being fixed on the cylinder support portion, institute
The rotor portion for stating encoder is mounted on the outer bearing end cap.
In a preferred embodiment of the utility model, first stator module include the first stator core assemblies and
Several the first windings of phase, are provided with several first winding slots on first stator core assemblies, several phases first around
Group is wound on respectively in corresponding first winding slot；Second stator module includes the second stator core assemblies and several phase the
Two windings, are provided with several second winding slots on second stator core assemblies, several second windings of phase rotating around
It makes in corresponding second winding slot；The internal diameters of first stator core assemblies, outer diameter, thickness, the first winding slot flute profile,
Internal diameter, outer diameter, the thickness, the flute profile of the second winding slot, second of the size of first winding slot and second stator core assemblies
The size of winding slot is identical or not identical；The first winding of several phases and second stator module in first stator module
In the second winding of several phases corresponding arrangement or the certain angle arrangement that is staggered radially.
The first winding of several phases and institute in a preferred embodiment of the utility model, in first stator module
Winding classification, winding mode, the line footpath of enameled wire, the number of turns for stating the second winding of several phases in the second stator module are identical or not
Together.
In a preferred embodiment of the utility model, the number of poles of the first rotor component and the second rotor assembly
Number of poles is identical or different.
In a preferred embodiment of the utility model, several first permanent magnets of the first rotor component and second
Several second permanent magnets of the identical polar of rotor assembly radially arrange by corresponding arrangement or the certain angle that is staggered.
In a preferred embodiment of the utility model, several first permanent magnets of the first rotor component and second
The length size of several second permanent magnets of rotor assembly is identical or different.
In a preferred embodiment of the utility model, several first permanent magnets of the first rotor component are with annular
The circle diameter of arrangement and several second permanent magnets of the second rotor assembly are identical or different with the circle diameter of annular array.
In a preferred embodiment of the utility model, the traction sheave and the first rotor component of second rotor assembly
Brake rim it is separately manufactured or be cast integrally.
The utility model compares with prior art, and effect is it will be evident that manufacture actively and relative to prior art
Permanent magnetic synchronous traction machine only has a set of stator assembly and rotor assembly corresponding effect, and traction capacity is restricted.This is practical new
The dual-gripper double-stator permanent magnet synchro traction machine that type provides has two sets stator assembly and rotor assembly to distinguish corresponding effect, significantly
Improve the power density and traction capacity of traction machine.
Detailed description of the invention
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the sectional view of the utility model dual-gripper double-stator permanent magnet synchro traction machine.
Fig. 2 is the structure chart of the utility model dual-gripper double-stator permanent magnet synchro traction machine.
Fig. 3 is the structure chart of the first shell of the utility model embodiment.
Fig. 4 is the structure chart of the second shell of the utility model embodiment.
Fig. 5 is the sectional view of first stator module of the utility model embodiment.
Fig. 6 is the structure chart of first stator module of the utility model embodiment.
Fig. 7 is the sectional view of the first rotor component of the utility model embodiment.
Fig. 8 is the structure chart of the first rotor component of the utility model embodiment.
Fig. 9 is the sectional view of second rotor assembly of the utility model embodiment.
Figure 10 is the structure chart of second rotor assembly of the utility model embodiment.
Figure 11 is the sectional view of the rotor assembly of the utility model embodiment.
Figure 12 is the structure chart of the rotor assembly of the utility model embodiment.
Figure 13 is the structure chart of the outer bearing end cap of the utility model embodiment.
Figure 14 is the structure chart of the encoder of the utility model embodiment.
Figure 15 is the sectional view that the encoder rotor part of the utility model embodiment is installed.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Referring to Fig. 1 to Figure 15, dual-gripper double-stator permanent magnet synchro traction machine shown in figure, including first shell 100,
Two shells 200, the first stator module 300, the second stator module 400, the first rotor component 500, the second rotor assembly 600.
The first stator module installation circumferential surface 120, the prominent central mounting portion of first axis are provided in first shell 100
130, the prominent periphery mounting portion 140 of first axis and the first stator module positioned at 120 periphery of the first stator module installation circumferential surface
Ring cavity 150 is installed, the first stator module installs ring cavity 150, the first stator module installation circumferential surface 120, the prominent center of first axis
130 three of mounting portion is coaxial, and the prominent periphery mounting portion 140 of first axis is located on the bottom edge of first shell 100.
It is provided with the second stator module installation circumferential surface 210 in second shell 200, is looped around the second stator module installation week
The second stator module installation ring cavity 220, the second axially projecting central mounting portion 230 and the second axially projecting week of 210 periphery of face
Side mounting portion 240, the second stator module installs circumferential surface 210, the second stator module installs ring cavity 220, the second axially projecting center
230 three of mounting portion is coaxial, and the second axially projecting periphery mounting portion 240 is located on the bottom edge of second shell 200.
First stator module 300 include the first stator core assemblies 310, several first insulation boards 320, several phases first around
Group 330, several first winding slots are provided on the first stator core assemblies 310, first paste several first insulation boards 320 respectively
It is attached on every one first winding slot, then several the first windings of phase 330 is wound on respectively in corresponding first winding slot.First is fixed
If the inner hole sleeve of sub- core assemblies 310 is on the first stator module installation circumferential surface 120 of first shell 100 and passes through bolt stem
730 are fixed in first shell 100, and the first stator module 300 is accommodated in the first stator module installation ring cavity after installing
In 150.
Second stator module 400 include the second stator core assemblies 410, several second insulation boards 420, several phases second around
Group 430, several second winding slots are provided on the second stator core assemblies 410, first paste several second insulation boards 420 respectively
It is attached on every one second winding slot, then several the second windings of phase 430 is wound on respectively in corresponding second winding slot.Second is fixed
If the inner hole sleeve of sub- core assemblies 410 is on the second stator module installation circumferential surface 210 of second shell 200 and passes through bolt stem
740 are fixed in second shell 200, and the second stator module 400 is accommodated in the second stator module installation ring cavity after installing
In 220.
In this embodiment, the slot of the internal diameter of the first stator core assemblies 310, outer diameter, thickness, the first winding slot
Shape, the internal diameter of the size of the first winding slot and the second stator core assemblies 410, outer diameter, thickness, the flute profile of the second winding slot, the
The size of two winding slots is identical or not identical；The size and structure and second of the first insulation board 320 in first stator module 300
The size of the second insulation board 420 in stator module 400 is identical with structure or not identical.
The first winding of several phases 330 in first stator module 300 and several phases second in the second stator module 400 around
Group 430 corresponds to arrangement or the certain angle that is staggered radially.The first winding of several phases 330 in first stator module 300 and
Winding classification, winding mode, the line footpath of enameled wire, the number of turns of the second winding of several phases 430 in two stator modules 400 it is identical or
It is different.
The first rotor component 500 includes several first permanent magnets 510 and brake rim 520, and brake is provided on brake rim 520
Turning circumferential surface 521, inner peripheral surface 522 and cylinder support portion 523, brake outer circumference surface 521, inner peripheral surface 522 and cylinder branch
523 three of support part is coaxial.Several first permanent magnets 510 are evenly arranged in brake rim 520 in such a way that annular and N, S are extremely staggered
On inner peripheral surface 522, the inner peripheral surface 522 of permanent magnet 510 and brake rim 520 is bonded using super glue.
Cylinder support portion 523 on brake rim 520 is located at first shell 100 by inner bearing 750,760 axis of outer bearing
It is fixed on the outer circumference surface of the prominent central mounting portion 130 of first axis and with shaft block ring 770.
Inner bearing end cap 780 and outer bearing end cap are equipped with by bolt respectively on the inside and outside end of cylinder support portion 130
790, inner bearing end cap 780 and outer bearing end cap 790 carry out axial limiting to inner bearing 750 and outer bearing 760 respectively.
After the first rotor component 500 installs, several first permanent magnets 510 are looped around the outer of the first stator module 300
It encloses.
Second rotor assembly 600 includes several second permanent magnets 610 and traction sheave 620, draging in present embodiment
Running wheel 620 and brake rim 520 are separately manufactured, are fixedly connected between the two by bolt 800.It can certainly be by traction sheave 620
It is integrated with the casting of brake rim 520.
Several second permanent magnets 610 are evenly arranged in the inner peripheral surface of traction sheave 620 in such a way that annular and N, S are extremely staggered
On 621, the inner peripheral surface 621 of several second permanent magnets 610 and traction sheave 620 is bonded using super glue.Several second permanent magnetism
Body 610 is looped around the periphery of the second stator module 400.
In this embodiment, the number of poles of the number of poles of the first rotor component 500 and the second rotor assembly 600 is identical.
Several second permanent magnets of the identical polar of several first permanent magnets 510 and the second rotor assembly 600 of the first rotor component 500
610 correspond to arrangement or the certain angle arrangement that is staggered radially.Several first permanent magnets 510 of the first rotor component 500 and
The length size of several second permanent magnets 610 of two rotor assembly 600 is identical or not identical.The first rotor component 500
Several first permanent magnets 510 are with several second permanent magnets 610 of the circle diameter of annular array and the second rotor assembly 600 with ring
The circle diameter of shape arrangement is identical or different.
Encoder 900 includes that encoder stationary part 910, encoder rotor part 920 will be compiled according to shown in Fig. 1 sectional view
Code device stationary part 910 is mounted on corresponding mounting portion in second shell 200.It, will in conjunction with shown in the sectional view of Fig. 1 and Figure 15
Encoder rotor part 920 is mounted on corresponding mounting portion on outer bearing end cap 790.
Finally, in conjunction with shown in Fig. 1 sectional view and Fig. 2 structure chart, when assembly, the first axis in first shell 100 is dashed forward
Central mounting portion 130 is docked and is led to using chimeric mode with the second axially projecting central mounting portion 230 in second shell 200 out
The connection of bolt 710 is crossed, the prominent periphery mounting portion 140 of the first axis in first shell 100 corresponding in second shell 200 the
Two axially projecting periphery mounting portions 240 are linked together by bolt 720, then brake 930 is mounted in first shell 100
Corresponding mounting portion completes the assembly of the dual-gripper double-stator permanent magnet synchro traction machine of the present embodiment.
When brake, brake 930, brake outer circumference surface 521 and 930 CONTACT WITH FRICTION of brake on brake rim 520 are driven
It brakes.
The dual-gripper double-stator permanent magnet synchro traction machine of the utility model, first shell 100 and second shell 200 are propped up jointly
The first rotor component 500 and the second rotor assembly 600 are supportted, the first stator module 300 and the first rotor component 500 are in vertical direction
On center line align and interact and generate torque, the second stator module 400 and the second rotor assembly 600 are in vertical direction
On center line align and interact and generate torque, dual-gripper keeps overall structure more firm, reliable, and bimorph transducer improves
Power density and traction capacity.
It is worth noting that, in present embodiment, 500 phase interaction of the first stator module 300 and the first rotor component
With torque is generated, the second stator module 400 and the interaction of the second rotor assembly 600 generate torque；First stator module, 300 He
Second stator module 400 can be powered load simultaneously, and can also individually be powered load, each stator module, which can drive, to be turned
Sub-component rotation.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (11)
1. a kind of dual-gripper double-stator permanent magnet synchro traction machine, which is characterized in that determine including first shell, second shell, first
Sub-component, the second stator module, the first rotor component, the second rotor assembly, encoder and brake；The first shell and
Two shells are butted against and fixed together, and first stator module is fixedly mounted on the first shell, second stator module
It is fixedly mounted on the second housing；The first rotor component includes several first permanent magnets and brake rim, the first rotor
Several first permanent magnets of component are interlocked with annular and the pole N, S, are evenly arranged on the inner peripheral surface of the brake rim, the brake
Brake outer circumference surface is provided on vehicle drum；Second rotor assembly includes several second permanent magnets and traction sheave, second rotor
Second permanent magnet of component is in an annular manner and the pole N, S interlocks, is evenly arranged on the inner peripheral surface of traction sheave, the traction sheave
It is connect by fastener with the brake rim；The stationary part of the encoder is mounted in the second shell, the coding
The rotor portion of device is mounted on brake rim；The brake is mounted in the first shell, when brake, drives the braking
Device, the brake outer circumference surface on the brake rim is contacted with the brake friction to brake.
2. a kind of dual-gripper double-stator permanent magnet synchro traction machine as described in claim 1, which is characterized in that in the first shell
The prominent central mounting portion of a first axis and the prominent periphery mounting portion of an at least first axis are provided on body；In the second shell
One second axially projecting central mounting portion and at least one second axially projecting periphery mounting portion, the first shell are additionally provided on body
The prominent central mounting portion of first axis on body docks and leads to the second axially projecting central mounting portion in the second shell
Fastener connection is crossed, the prominent periphery mounting portion of first axis and in the second shell corresponding second in the first shell
Axially projecting periphery mounting portion is docked and is linked together by fastener.
3. a kind of dual-gripper double-stator permanent magnet synchro traction machine as claimed in claim 2, which is characterized in that in the first shell
One first stator module installation circumferential surface and the first stator positioned at first stator module installation circumferential surface periphery are provided on body
Component installs ring cavity, and the second stator module installation circumferential surface is provided in the second shell and is looped around second stator pack
The second stator module that part installs circumferential surface periphery installs ring cavity, and first stator module is fixed on the first of the first shell
It on stator module installation circumferential surface and is accommodated in the first stator module installation ring cavity, second stator module is mounted on
On the second stator module installation circumferential surface of the second shell and it is accommodated in the second stator module installation ring cavity；It is described
Brake rim includes the cylinder support portion coaxial with its inner peripheral surface, and the cylinder support portion axis is located at the first of the first shell
On the outer circumference surface of axially projecting central mounting portion.
4. a kind of dual-gripper double-stator permanent magnet synchro traction machine as claimed in claim 2, which is characterized in that the brake rim
The outer circle that cylinder support portion passes through the prominent central mounting portion of first axis that inner bearing and outer bearing axis are located at the first shell
On circumferential surface, the inner bearing and outer bearing the inner bearing end cap on the inside and outside end by being fixed on the cylinder support portion respectively
Axial limiting is carried out with outer bearing end cap, the rotor portion of the encoder is mounted on the outer bearing end cap.
5. a kind of dual-gripper double-stator permanent magnet synchro traction machine as described in any one of Claims 1-4 claim, feature
It is, first stator module includes the first winding of the first stator core assemblies and several phases, in first stator core
Several first winding slots are provided on component, several first windings of phase are wound on respectively in corresponding first winding slot；Institute
Stating the second stator module includes the second stator core assemblies and several second windings, is arranged on second stator core assemblies
There are several second winding slots, several second windings are wound on respectively in corresponding second winding slot；The first stator iron
Internal diameter, outer diameter, thickness, the flute profile of the first winding slot, the size of the first winding slot and the second stator core group of heart component
The internal diameter of part, outer diameter, thickness, the flute profile of the second winding slot, the size of the second winding slot are identical or not identical；First stator
The first winding of several phases in component and the second winding of several phases in second stator module radially corresponding arrangement or
The certain angle that is staggered arrangement.
6. a kind of dual-gripper double-stator permanent magnet synchro traction machine as claimed in claim 5, which is characterized in that first stator
Winding classification with the second winding of several phases in second stator module of the first winding of several phases in component, coiling side
Formula, the line footpath of enameled wire, the number of turns are identical or different.
7. a kind of dual-gripper double-stator permanent magnet synchro traction machine as claimed in claim 6, which is characterized in that the first rotor
The number of poles of the number of poles of component and the second rotor assembly is identical or different.
8. a kind of dual-gripper double-stator permanent magnet synchro traction machine as claimed in claim 7, which is characterized in that the first rotor
Several second permanent magnets of the identical polar of several first permanent magnets and the second rotor assembly of component are corresponding radially to be arranged
Or the certain angle arrangement that is staggered.
9. a kind of dual-gripper double-stator permanent magnet synchro traction machine as claimed in claim 8, which is characterized in that the first rotor
The length size of several second permanent magnets of several first permanent magnets and the second rotor assembly of component is identical or different.
10. a kind of dual-gripper double-stator permanent magnet synchro traction machine as claimed in claim 9, which is characterized in that described first turn
Several first permanent magnets of sub-component are with several second permanent magnets of the circle diameter of annular array and the second rotor assembly with ring
The circle diameter of shape arrangement is identical or different.
11. a kind of dual-gripper double-stator permanent magnet synchro traction machine as described in any one of Claims 1-4 claim, special
Sign is, the traction sheave of second rotor assembly and the brake rim of the first rotor component are separately manufactured or be cast integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820870777.7U CN208656607U (en) | 2018-06-06 | 2018-06-06 | Dual-gripper double-stator permanent magnet synchro traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820870777.7U CN208656607U (en) | 2018-06-06 | 2018-06-06 | Dual-gripper double-stator permanent magnet synchro traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208656607U true CN208656607U (en) | 2019-03-26 |
Family
ID=65780250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820870777.7U Withdrawn - After Issue CN208656607U (en) | 2018-06-06 | 2018-06-06 | Dual-gripper double-stator permanent magnet synchro traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208656607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551247A (en) * | 2018-06-06 | 2018-09-18 | 永大电梯设备（中国）有限公司 | Dual-gripper double-stator permanent magnet synchro traction machine |
-
2018
- 2018-06-06 CN CN201820870777.7U patent/CN208656607U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551247A (en) * | 2018-06-06 | 2018-09-18 | 永大电梯设备（中国）有限公司 | Dual-gripper double-stator permanent magnet synchro traction machine |
| CN108551247B (en) * | 2018-06-06 | 2023-09-22 | 上海吉亿电机有限公司 | Double-support double-stator permanent magnet synchronous traction machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190805 Address after: 201615 Shanghai city Songjiang District town Jiuting Yaohan Road No. 77 Patentee after: SHANGHAI GIE EM Co.,Ltd. Address before: 201615 Shanghai, Songjiang District, No. nine new road, No. 99 Patentee before: YUNGTAY ELEVATOR EQUIPMENT (CHINA) Co.,Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190326 Effective date of abandoning: 20230922 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190326 Effective date of abandoning: 20230922 |