CN108900031A - A kind of low vibration motor of low noise - Google Patents
A kind of low vibration motor of low noise Download PDFInfo
- Publication number
- CN108900031A CN108900031A CN201810757251.2A CN201810757251A CN108900031A CN 108900031 A CN108900031 A CN 108900031A CN 201810757251 A CN201810757251 A CN 201810757251A CN 108900031 A CN108900031 A CN 108900031A
- Authority
- CN
- China
- Prior art keywords
- shaft
- fixedly connected
- rotor plate
- damping device
- casing
- 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- Withdrawn
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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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of low vibration motors of low noise,Including casing,Determine winding,Shaft,Right aling cap,Flabellum,Support damping device,Left sealing cap and shaft damping device,It is described to determine winding setting on casing inner wall,Determine to be provided with dynamic winding on the inside of winding,The shaft setting is being determined in the middle part of winding and is being fixedly connected,Right side is provided with several flabellums in shaft,The right aling cap is arranged in casing right end and is fixedly connected,Left sealing cap is arranged in casing left end and is fixedly connected,The right aling cap left end is provided with inner sleeve,The support damping device is arranged between inner sleeve and casing,Rotor plate mounting groove is provided in the middle part of right aling cap,The shaft right end is provided with rotor plate and is fixedly connected by the second screw,Rotor plate,Rotor plate mounting groove,First ball and the second ball form the device for being similar to cylindrical bearing additional plane bearing,Frictional force when can greatly reduce shaft rotation,It can prevent shaft from moving left and right the friction that collides again,It makes a noise.
Description
Technical field
The present invention relates to a kind of motor, the low vibration motor of specifically a kind of low noise.
Background technique
Motor is to refer to realize that electric energy is converted into the device of kinetic energy according to the law of electromagnetic induction, and motor is widely used
It is general, as long as almost there is machine place all to be unable to do without motor, currently, common motor on the market, can make a noise at work,
Its noise source mainly comes from vibration and friction.
Machine shaft can inevitably be moved left and right in rotation, so that its limiting device is collided with motor wall, to occur
Friction generates noise；In the process of running, magnetostriction can occur motor for winding, and so as to cause vibration, vibration is transmitted to shaft
On motor housing, to collide, noise is generated；In addition the radiator fan in motor at runtime, can be by extraneous dust
It brings into inside motor, to rub with motor inner body, causes to damage, finally damage motor.Therefore, art technology
Personnel provide a kind of low vibration motor of low noise, to solve the problems mentioned in the above background technology.
Summary of the invention
The purpose of the present invention is to provide a kind of low vibration motors of low noise, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides the following technical solutions：
A kind of low vibration motor of low noise, including casing, determine winding, shaft, right aling cap, flabellum, support damping device, left envelope
Lid and shaft damping device, it is described to determine winding setting on casing inner wall, determine to be provided with dynamic winding on the inside of winding, the shaft is set
It sets and is determining in the middle part of winding and be fixedly connected, right side is provided with several flabellums in shaft, and the right aling cap is arranged in casing right end
And be fixedly connected, left sealing cap is arranged in casing left end and is fixedly connected；
The right aling cap left end is provided with inner sleeve, and the support damping device is arranged between inner sleeve and casing, right
Capping middle part is provided with rotor plate mounting groove, and the shaft right end is provided with rotor plate and is fixedly connected by the second screw, institute
It states right aling cap right end and corresponds to and be provided with postive stop baffle at rotor plate mounting groove and be fixedly connected, set between postive stop baffle and rotor plate
It is equipped with plane bearing, upper and lower ends are provided with positioning pipe on the inside of the left sealing cap, and locating rod, two positioning are inserted in positioning pipe
Bar opposite end is provided with shaft damping device and is fixedly connected, and is provided with the first bullet between the shaft damping device and positioning pipe
It spring and is fixedly connected, is corresponded in the shaft and be provided with boss at shaft damping device.
As a further solution of the present invention：The right aling cap left end is provided with outer sleeve and is set on casing, housing
Cylinder is fixedly connected between casing by screw.
As further scheme of the invention：The rotor plate is in cylindrical, is provided with first sliding groove on side wall,
Several the first balls are provided between first sliding groove and rotor plate installation groove sidewall, are arranged in left wall on the inside of rotor plate mounting groove
There is annular second sliding slot, several the second balls are provided between second sliding slot and rotor plate, the shaft is connect with rotor plate
Locate hexagonal bar shape.
As further scheme of the invention：It is provided with right dust cover on the right side of the right aling cap, right dust cover left end is set
It is equipped with several right mounting blocks and is fixedly connected by screw with right aling cap, postive stop baffle left end is provided with several postive stop baffles
It mounting blocks and is fixedly connected by screw with right aling cap, right dust cover left end is provided with foam-rubber cushion.
As further scheme of the invention：The left sealing cap right end is provided with several left mounting blocks and passes through screw
It is fixedly connected with casing, left sealing cap left end is provided with mounting base, and mounting base left end is arranged with left dust cover, right side on the inside of mounting base
It is provided with bearing, bearing is set in shaft.
As further scheme of the invention：The support damping device includes outer gum cover, interior gum cover and elastic component, outside
Gum cover is arranged on the outside of interior gum cover, several elastic components are provided between outer gum cover and interior gum cover.
As further scheme of the invention：The shaft damping device include pressing plate, guide hole, guide rod, second spring,
Support plate, idler wheel and fixing axle, pressing plate is arc-shaped and its top is fixedly connected with locating rod, several are provided in pressing plate and is led
Hole is inserted with guide rod in guide hole, and guide rod bottom is provided with support plate, and second spring is provided between support plate and pressing plate, supports
Board bottom portion front and rear sides are provided with connecting rod, and bottom is provided with fixing axle between two connecting rods, and idler wheel, idler wheel are arranged in fixing axle
It is tangent with shaft.
As further scheme of the invention：Several are provided on the dust cover, left sealing cap and right aling cap thoroughly
Stomata.
Compared with prior art, the beneficial effects of the invention are as follows：
1, the rotor plate of shaft right end acts on the position of limitation shaft, prevents shaft from moving left and right in rotation, rotates
Plate, rotor plate mounting groove, the first ball and the second ball form the device for being similar to cylindrical bearing additional plane bearing,
Structure is simpler, and can greatly reduce frictional force when shaft rotates, and can prevent shaft from moving left and right the friction that collides, and sends out
Noise out.
2, the vibration that shaft damping device acts on that anti-stop winding generates is transmitted to shell, upper and lower two damping by shaft
For device by the first spring and the opposite clamping shaft of second spring, limitation shaft prevents its from occurring strenuous vibration, damping device with
Shaft is contacted by idler wheel, and friction is small for generation.
3, support damping device acts on the vibration reduced between right aling cap and casing and collides, to reduce motor sending
Noise.
4, fan, which acts on, makes motor internal gas and extraneous circulation, increases heat dissipation performance, is respectively provided at left and right sides of motor
There is dust cover, be provided with foam-rubber cushion in dust cover, can prevent dust from entering motor, rub with part in motor, causes to damage
Wound.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the low vibration motor of low noise.
Fig. 2 is partial enlarged view A in the low vibration motor of low noise.
Fig. 3 is the structural schematic diagram of damping device in the low vibration motor of low noise.
Fig. 4 is the structural schematic diagram that damping device is supported in the low vibration motor of low noise.
In figure：1- casing, 2- determine winding, 3- moves winding, 4- shaft, 5- outer sleeve, 6- screw, 7- right aling cap, the right peace of 8-
It fills block, the right dust cover of 9-, 10- postive stop baffle, 11- flabellum, 12- inner sleeve, 13- and supports damping device, the left mounting blocks of 14-, 15-
Left sealing cap, 16- positioning pipe, 17- locating rod, the first spring of 18-, 19- boss, 20- shaft damping device, the left dust cover of 21-,
22- mounting base, 23- bearing, 41- rotor plate, the second screw of 42-, 43- plane bearing, the first ball of 44-, 45- first sliding groove,
In the outer gum cover of 71- rotor plate mounting groove, 72- second sliding slot, the second ball of 73-, 101- postive stop baffle mounting blocks, 131-, 132-
Gum cover, 133- elastic component, 201- pressing plate, 202- guide hole, 203- guide rod, 204- second spring, 205- support plate, 206- idler wheel,
207- fixing axle.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~4, in the embodiment of the present invention, a kind of low vibration motor of low noise, including casing 1, determine winding 2, shaft
4, right aling cap 7, flabellum 11, support damping device 13, left sealing cap 15 and shaft damping device 20, it is described to determine the setting of winding 2 in machine
On 1 inner wall of shell, determine to be provided with dynamic winding 3 on the inside of winding 2, the setting of shaft 4 is being determined 2 middle part of winding and is being fixedly connected, shaft 4
Upper right side is provided with several flabellums 11, and the right aling cap 7 is arranged in 1 right end of casing and is fixedly connected, and the setting of left sealing cap 15 exists
It 1 left end of casing and is fixedly connected；
7 left end of right aling cap is provided with inner sleeve 12, and the support damping device 13 is arranged in inner sleeve 12 and casing 1
Between, rotor plate mounting groove 71 is provided in the middle part of right aling cap 7,4 right end of shaft is provided with rotor plate 41 and by the second spiral shell
Nail 42 is fixedly connected, and 7 right end of right aling cap, which corresponds to, to be provided with postive stop baffle 10 and be fixedly connected at rotor plate mounting groove 71, limit
It is provided with plane bearing 43 between position baffle 10 and rotor plate 41, the 15 inside upper and lower ends of left sealing cap are provided with positioning pipe
16, locating rod 17 is inserted in positioning pipe 16, and two locating rods, 17 opposite end is provided with shaft damping device 20 and is fixedly connected, institute
It states and is provided with the first spring 18 between shaft damping device 20 and positioning pipe 16 and is fixedly connected, correspond to shaft in the shaft 4
Boss 19 is provided at damping device 20.
7 left end of right aling cap is provided with outer sleeve 5 and is set on casing 1, passes through spiral shell between outer sleeve 5 and casing 1
Nail 6 is fixedly connected.
The rotor plate 41 is in cylindrical, and first sliding groove 45 is provided on side wall, and first sliding groove 45 and rotor plate are pacified
It is provided with several first balls 44 between 71 side wall of tankage, it is sliding that annular second is provided in 71 inside left wall of rotor plate mounting groove
Slot 72 is provided with several the second balls 73, the shaft 4 and 41 junction of rotor plate between second sliding slot 72 and rotor plate 41
Hexagonal bar shape.
Right dust cover 9 is provided on the right side of the right aling cap 7, right 9 left end of dust cover is provided with several right mounting blocks 8 and leads to
It crosses screw to be fixedly connected with right aling cap 7,10 left end of postive stop baffle is provided with several postive stop baffle mounting blocks 101 and passes through screw
It is fixedly connected with right aling cap 7, right 9 left end of dust cover is provided with foam-rubber cushion.
15 right end of left sealing cap is provided with several left mounting blocks 14 and is fixedly connected by screw with casing 1, left envelope
15 left end of lid is provided with mounting base 22, and 22 left end of mounting base is arranged with left dust cover 21, and 22 inside right side of mounting base is provided with axis
23 are held, bearing 23 is set in shaft 4.
The support damping device 13 includes outer gum cover 131, interior gum cover 132 and elastic component 133, and the outer setting of gum cover 131 exists
Interior 132 outside of gum cover, is provided with several elastic components 133 between outer gum cover 131 and interior gum cover 132.
The shaft damping device 20 include pressing plate 201, guide hole 202, guide rod 203, second spring 204, support plate 205,
Idler wheel 206 and fixing axle 207, pressing plate 201 is arc-shaped and its top is fixedly connected with locating rod 17, if being provided in pressing plate 201
A guide hole 202 is done, is inserted with guide rod 203 in guide hole 202,203 bottom of guide rod is provided with support plate 205, support plate 205 and pressing plate
Second spring 204 is provided between 201,205 bottom front and rear sides of support plate are provided with connecting rod, and bottom is arranged between two connecting rods
There is fixing axle 207, idler wheel 206 is arranged in fixing axle 207, idler wheel 206 and shaft 4 are tangent.
Several air holes are provided on the dust cover 9, left sealing cap 15 and right aling cap 7.
The working principle of the invention is：
The present invention relates to a kind of low vibration motor of low noise, the rotor plate 41 of 4 right end of shaft acts on the position of limitation shaft 4
It sets, prevents shaft 4 from moving left and right in rotation, rotor plate 41 and rotor plate mounting groove 71 and the formation of the first ball 44 and bearing
The device quite acted on, to support the right end of shaft 4 and reduce frictional force, between rotor plate 41 and rotor plate mounting groove 71
Two balls 73 act on the frictional force reduced between rotor plate 41 and rotor plate mounting groove 71, and rotor plate 41 and postive stop baffle 10
Between be also equipped with plane bearing 43 to further decrease frictional force, shaft damping device 20 acts on anti-stop winding 3 and generates
Vibration shell 1 is transmitted to by shaft 4, upper and lower two damping device 20 is pressed in opposite directions by the first spring 18 and second spring 204
Tight shaft 4, limitation shaft 4 prevent it from strenuous vibration occurs, and damping device 20 is contacted with shaft 4 by idler wheel 206, and generation rubs
The vibration collision that power is smaller, and damping device 13 is supported to act between reduction right aling cap 7 and casing 1 is wiped, to reduce motor hair
Noise out, fan 11, which acts on, makes motor internal gas and extraneous circulation, increases heat dissipation performance, is respectively provided at left and right sides of motor
There is dust cover 9, can prevent dust from entering motor, rub with part in motor, causes to damage.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of low vibration motor of low noise, including casing (1), determine winding (2), shaft (4), right aling cap (7), flabellum (11), branch
Support damping device (13), left sealing cap (15) and shaft damping device (20), which is characterized in that described to determine winding (2) setting in machine
On shell (1) inner wall, determine to be provided with dynamic winding (3) on the inside of winding (2), shaft (4) setting is being determined in the middle part of winding (2) and fixed
It connects, right side is provided with several flabellums (11) in shaft (4), and right aling cap (7) setting is in casing (1) right end and fixed company
It connects, left sealing cap (15) is arranged in casing (1) left end and is fixedly connected；
Right aling cap (7) left end is provided with inner sleeve (12), the support damping device (13) setting inner sleeve (12) with
Between casing (1), it is provided with rotor plate mounting groove (71) in the middle part of right aling cap (7), shaft (4) right end is provided with rotor plate
(41) and by the second screw (42) it is fixedly connected, right aling cap (7) right end corresponds to be provided at rotor plate mounting groove (71)
It postive stop baffle (10) and is fixedly connected, plane bearing (43), the left side is provided between postive stop baffle (10) and rotor plate (41)
Upper and lower ends are provided with positioning pipe (16) on the inside of capping (15), are inserted with locating rod (17), two locating rods in positioning pipe (16)
(17) opposite end is provided with shaft damping device (20) and is fixedly connected, the shaft damping device (20) and positioning pipe (16) it
Between be provided with the first spring (18) and be fixedly connected, corresponded on the shaft (4) at shaft damping device (20) and be provided with boss
(19)。
2. the low vibration motor of low noise according to claim 1, which is characterized in that right aling cap (7) left end is provided with outer
It sleeve (5) and is set on casing (1), is fixedly connected between outer sleeve (5) and casing (1) by screw (6).
3. the low vibration motor of low noise according to claim 1, which is characterized in that the rotor plate (41) is in cylindrical,
It is provided on its side wall first sliding groove (45), is provided with several between first sliding groove (45) and rotor plate mounting groove (71) side wall
First ball (44) is provided with annular second sliding slot (72) on the inside of rotor plate mounting groove (71) in left wall, second sliding slot (72) with
Several the second balls (73) are provided between rotor plate (41), the shaft (4) and rotor plate (41) junction are hexagonal
Bar shape.
4. the low vibration motor of low noise according to claim 1, which is characterized in that be provided with the right side on the right side of the right aling cap (7)
Dust cover (9), right dust cover (9) left end are provided with several right mounting blocks (8) and connect by the way that screw and right aling cap (7) are fixed
It connects, postive stop baffle (10) left end is provided with several postive stop baffle mounting blocks (101) and connects by the way that screw and right aling cap (7) are fixed
It connects, right dust cover (9) left end is provided with foam-rubber cushion.
5. the low vibration motor of low noise according to claim 1, which is characterized in that the left sealing cap (15) is if right end is provided with
It does a left mounting blocks (14) and is fixedly connected by screw with casing (1), left sealing cap (15) left end is provided with mounting base (22), peace
Dress seat (22) left end is arranged with left dust cover (21), and right side is provided with bearing (23) on the inside of mounting base (22), and bearing (23) is arranged
On shaft (4).
6. the low vibration motor of low noise according to claim 1, which is characterized in that the support damping device (13) includes outer
Gum cover (131), interior gum cover (132) and elastic component (133), outer gum cover (131) setting is on the outside of interior gum cover (132), outer gum cover
(131) several elastic components (133) are provided between interior gum cover (132).
7. the low vibration motor of low noise according to claim 1, which is characterized in that the shaft damping device (20) includes pressure
Plate (201), guide hole (202), guide rod (203), second spring (204), support plate (205), idler wheel (206) and fixing axle (207),
Pressing plate (201) is arc-shaped and its top is fixedly connected with locating rod (17), is provided with several guide holes (202) in pressing plate (201),
It is inserted with guide rod (203) in guide hole (202), guide rod (203) bottom is provided with support plate (205), support plate (205) and pressing plate
(201) it is provided between second spring (204), support plate (205) bottom front and rear sides are provided with connecting rod, bottom between two connecting rods
Portion is provided with fixing axle (207), is arranged in fixing axle (207) idler wheel (206), and idler wheel (206) and shaft (4) are tangent.
8. the low vibration motor of low noise according to claim 1, which is characterized in that the dust cover (9), left sealing cap (15) and
Right aling cap is provided with several air holes on (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757251.2A CN108900031A (en) | 2018-07-11 | 2018-07-11 | A kind of low vibration motor of low noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757251.2A CN108900031A (en) | 2018-07-11 | 2018-07-11 | A kind of low vibration motor of low noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108900031A true CN108900031A (en) | 2018-11-27 |
Family
ID=64348680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810757251.2A Withdrawn CN108900031A (en) | 2018-07-11 | 2018-07-11 | A kind of low vibration motor of low noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108900031A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098689A (en) * | 2019-06-22 | 2019-08-06 | 陈路阳 | A kind of electric motor end cap assembly and motor |
| CN111293839A (en) * | 2020-03-26 | 2020-06-16 | 绍兴文理学院 | Sealing device for end part of air cooling motor and installation method of fan |
| CN112366884A (en) * | 2020-10-22 | 2021-02-12 | 吕恒王涛 | Protective device for reducing noise of motor |
| CN113036995A (en) * | 2021-03-06 | 2021-06-25 | 南京吉奇图汽车用品有限公司 | Fixing device for damping and heat dissipation of motor |
| CN113758049A (en) * | 2021-08-19 | 2021-12-07 | 刘亚超 | Double-temperature air source heat pump unit |
| CN115102325A (en) * | 2022-07-14 | 2022-09-23 | 中磁电科有限公司 | Vibration/noise reduction type generator |
-
2018
- 2018-07-11 CN CN201810757251.2A patent/CN108900031A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098689A (en) * | 2019-06-22 | 2019-08-06 | 陈路阳 | A kind of electric motor end cap assembly and motor |
| CN111293839A (en) * | 2020-03-26 | 2020-06-16 | 绍兴文理学院 | Sealing device for end part of air cooling motor and installation method of fan |
| CN112366884A (en) * | 2020-10-22 | 2021-02-12 | 吕恒王涛 | Protective device for reducing noise of motor |
| CN113036995A (en) * | 2021-03-06 | 2021-06-25 | 南京吉奇图汽车用品有限公司 | Fixing device for damping and heat dissipation of motor |
| CN113758049A (en) * | 2021-08-19 | 2021-12-07 | 刘亚超 | Double-temperature air source heat pump unit |
| CN115102325A (en) * | 2022-07-14 | 2022-09-23 | 中磁电科有限公司 | Vibration/noise reduction type generator |
| CN115102325B (en) * | 2022-07-14 | 2023-07-28 | 中磁电科有限公司 | Damping and noise-reducing generator |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200302 Address after: 301700 Ziyun Huayuan community, xiazhuzhuang street, Wuqing District, Tianjin Applicant after: Tianjin fengwuding Intellectual Property Service Co., Ltd Address before: 065000 Hebei city of Langfang province Edmonton East Road No. 133 Applicant before: Zhang Mingming |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181127 |