CN106321783A - Worm supporting structure - Google Patents
Worm supporting structure Download PDFInfo
- Publication number
- CN106321783A CN106321783A CN201610852796.2A CN201610852796A CN106321783A CN 106321783 A CN106321783 A CN 106321783A CN 201610852796 A CN201610852796 A CN 201610852796A CN 106321783 A CN106321783 A CN 106321783A
- Authority
- CN
- China
- Prior art keywords
- flange
- worm screw
- bearing
- supporting construction
- arcuate socket
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0409—Electric motor acting on the steering column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/039—Gearboxes for accommodating worm gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H2057/0213—Support of worm gear shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Gear Transmission (AREA)
- Power Steering Mechanism (AREA)
Abstract
The invention provides a worm supporting structure. The worm supporting structure comprises an elastic connection sleeve, a bearing and a disk-shaped spring; the outer surface of the bearing is in interference fit with the inner wall of the elastic connection sleeve; the inner surface of the bearing is in interference fit with a worm; the first face of the disk-shaped spring is attached to the bearing; an annular clamped flange is arranged at the first end of the elastic connection sleeve and is provided with two limiting open grooves which divide the clamped flange into a first flange and a second flange; the disk-shaped spring is provided with a first arc-shaped hole and a second arc-shaped hole; supporting ribs matched with the limiting open grooves are formed between the first arc-shaped hole and the second arc-shaped hole; and the first flange and the second flange penetrate the first arc-shaped hole and the second arc-shaped hole correspondingly to be attached to the second face of the disk-shaped spring. By means of the worm supporting structure, the possibility that large abnormal sound happens to a steering system can be greatly lowered.
Description
Technical field
The present invention relates to automobile steering system technical field, be specifically related to a kind of worm screw supporting construction.
Background technology
In the electric boosting steering system of automobile, especially in pipe column type electric servo steering system, it is common that utilize
Worm and gear is as reducing gear.The transferring element of a power during wherein worm screw is reducing gear, worm screw and reducing gear shell
Use worm screw supporting construction between body, support worm screw and the effect of transmission power to play.
NVH (english abbreviation of Noise, Vibration, Harshness) performance has become the emphasis of car load quality the most
Paying close attention to content, the NVH performance of each system is being paid close attention to and promoted to each automobile brand all, and wherein the NVH performance of steering is to car load
Comfortableness quality have large effect.The NVH of steering optimizes, and mainly carries out its bang path, transmission gap
Improving, wherein worm screw supporting construction is also one of vitals of improvement.Worm screw supporting construction is usually standard rolling bearing, i.e. at present
Worm screw is supported by bearing and realizes the connection of worm screw and reducing gear housing.Owing to bearing is rigid element, its
Can not preferably buffer the radial impact that worm screw is subject to, cause producing because of shock between bearing and reducing gear housing abnormal sound,
Meanwhile, it can not preferably buffer the axial impact that worm screw is subject to so that this axial impact can be delivered to be connected with worm screw
Each connect on drive disk assembly, cause producing because of shock between each connection drive disk assembly abnormal sound, and then make steering
Abnormal sound is bigger.
Summary of the invention
It is an object of the invention to provide a kind of worm screw supporting construction, bigger to solve steering abnormal sound in prior art
Problem.
For achieving the above object, the technical scheme is that
A kind of worm screw supporting construction, it includes elastic connection sleeve, bearing and butterfly spring, the outer surface of described bearing with
The inwall interference fit of described elastic connection sleeve, the inner surface of described bearing and worm screw interference fit；The of described butterfly spring
One side fits with described bearing；First end of described elastic connection sleeve is provided with the engaging flange of annular, described engaging flange
On be provided with two limit opening grooves, described engaging flange is divided into the first flange and the second flange by limit opening groove described in two；
The first arcuate socket and the second arcuate socket it is provided with, between described first arcuate socket and described second arcuate socket on described butterfly spring
There is the brace rod matched with described limit opening groove；Described first flange and described second flange are each passed through described first
Arcuate socket and described second arcuate socket fit with the second face of described butterfly spring.
Preferably, it also includes the back-up ring being arranged between described engaging flange and described second, remote on described back-up ring
The side of described engaging flange is provided with limit rib；It is provided with, at described first arcuate socket, the limit matched with described limit rib
Position groove.
Preferably, it is provided with the projection corresponding with described limited impression at described first arcuate socket.
Preferably, described second being provided with alignment pin, it is fixed with described to be provided with in the installing hole of reducing gear housing
The locating slot that position pin matches.
Preferably, described alignment pin is arranged on the side on described butterfly spring away from described brace rod.
Preferably, the first side of described second arcuate socket is provided with multiple first opening, and each described first opening is distributed on
On the bearing of trend of described first side.
Preferably, the second side of described second arcuate socket is provided with multiple second opening, and each described second opening is distributed on
On the bearing of trend of described second side.
Preferably, each described first opening is arranged with each described second interleaved openings.
Preferably, described second flange is provided with construction opening groove.
Preferably, the second end of described elastic connection sleeve is provided with gear and connects flange, and described gear connects the side of flange with described
Bearing fits, and described gear connects the opposite side of flange and fits with the limiting stand terrace on described worm screw.
The beneficial effects of the present invention is:
The worm screw supporting construction of the present invention, its bearing is arranged in elastic connection sleeve, efficiently avoid bearing and deceleration
Mechanism shell directly contacts so that be not likely to produce abnormal sound between bearing and reducing gear housing；Simultaneously as this elastic connection sleeve
It is arranged on butterfly spring so that worm screw can be supported by this worm screw supporting construction by butterfly spring, when worm screw is subject to
When axial impact and radial impact, butterfly spring will deform on axially and radially such that it is able to axial impact and
Radial impact preferably buffers so that is less susceptible between bearing and reducing gear housing produce abnormal sound, and makes and worm screw
The each connection being connected is not easy to produce abnormal sound between drive disk assembly, and then greatly reduces the steering bigger abnormal sound of generation
Probability.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to institute in embodiment
Need the accompanying drawing used to be briefly described, and by combining accompanying drawing, the specific embodiment of the present invention is made the most specifically
Bright, wherein
The schematic diagram of the worm screw supporting construction that Fig. 1 provides for the embodiment of the present invention；
The schematic diagram of the butterfly spring that Fig. 2 provides for the embodiment of the present invention；
The schematic diagram of the back-up ring that Fig. 3 provides for the embodiment of the present invention；
The schematic diagram of the elastic connection sleeve that Fig. 4 provides for the embodiment of the present invention；
The schematic diagram of the bearing that Fig. 5 provides for the embodiment of the present invention；
The schematic diagram of the worm screw that Fig. 6 provides for the embodiment of the present invention；
The schematic diagram of the locating slot that Fig. 7 provides for the embodiment of the present invention；
The worm screw supporting construction that Fig. 8 provides for embodiment of the present invention schematic diagram in use.
Labelling in accompanying drawing:
11, butterfly spring the 12, first opening 13, brace rod 14, projection 15, alignment pin
16, limited impression the 17, first arcuate socket the 18, second opening 21, elastic connection sleeve
22, first flange the 23, second flange 24, limit opening groove 25, construction opening groove
26, gear connects flange 31, back-up ring 32, limit rib 41, bearing 51, worm screw
52, limiting stand terrace 61, reducing gear housing 62, locating slot
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with specific embodiment pair
This programme is discussed in detail further.
As shown in Figures 1 to 8, embodiments provide a kind of worm screw supporting construction, it include elastic connection sleeve 21,
The inwall interference fit of bearing 41 and butterfly spring 11, the outer surface of its middle (center) bearing 41 and elastic connection sleeve 21, bearing 41
Inner surface and worm screw 51 interference fit；First of butterfly spring 11 fits with bearing 41；First end of elastic connection sleeve 21
Being provided with the engaging flange of annular, engaging flange is provided with two limit opening grooves 24, engaging is turned over by two limit opening grooves 24
While be divided into the first flange 22 and the second flange 23；The first arcuate socket 17 and the second arcuate socket it is provided with on butterfly spring 11, first
There is between arcuate socket 17 with the second arcuate socket the brace rod 13 matched with limit opening groove 24；First flange 22 and second turns over
Limit 23 is each passed through the second face of the first arcuate socket 17 and the second arcuate socket and butterfly spring 11 and fits.It is understood that
When mounted, the first flange 22 is through second clamping laminating of the first arcuate socket 17 with butterfly spring 11, the second flange simultaneously
23 will through second clamping laminating of the second arcuate socket and butterfly spring 11, with butterfly spring 11 is clamped on engaging flange with
Between bearing 41, during now brace rod 13 will be located in limit opening groove 24；The first arcuate socket 17 and can certainly be interpreted as
Butterfly spring 11 is divided into inner ring and outer ring by two arcuate sockets, is connected by two brace rods 13 between inner ring and outer ring, and inner ring is permissible
Axially-movable the axial impact being subject to worm screw 51 by the elastic deformation of brace rod 13 are preferably buffered；Butterfly spring
11 and elastic connection sleeve 21 outer wall and the installing hole of reducing gear housing 61 at wall fit；After limiting lock during installation
Reducing gear housing is fastened by jack panel, can realize this worm screw supporting construction installation in reducing gear housing.
The worm screw supporting construction that the embodiment of the present invention provides, its bearing 41 is arranged in elastic connection sleeve 21, effectively keeps away
Exempt from bearing 41 directly to contact with reducing gear housing 61 so that be not likely to produce different between bearing 41 and reducing gear housing 61
Ring；Simultaneously as this elastic connection sleeve 21 is arranged on butterfly spring 11 so that this worm screw supporting construction can pass through butterfly bullet
Worm screw 51 is supported by spring 11, when worm screw 51 is by axial impact and radial impact, butterfly spring 11 will axially and
Radially deform such that it is able to axial impact and radial impact are preferably buffered so that bearing 41 and reductor
Be less susceptible to produce abnormal sound between structure housing 61, and make to be connected with worm screw 51 each be connected between drive disk assembly be not easy to produce different
Ring, and then greatly reduce the probability of the steering bigger abnormal sound of generation.
As it is shown on figure 3, in another embodiment that the embodiment of the present invention provides, this worm screw supporting construction can also include setting
Putting the back-up ring 31 between engaging flange and second, on back-up ring 31, the side away from engaging flange is provided with limit rib 32；The
The limited impression 16 matched with limit rib 32 it is provided with at one arcuate socket 17.This makes it possible to make butterfly by the setting of back-up ring 31
The clamping force that the inner ring of shape spring 11 is subject in the circumferential is more uniform so that butterfly spring 11 and elastic connection sleeve 21 it
Between connection the most firm；It also is able to make the intensity of this worm screw supporting construction be improved simultaneously.It is understood that it is spacing
Muscle 32 can be formed on back-up ring 31 by the processing mode of indent.
Further, the projection 14 corresponding with limited impression 16 can be provided with at the first arcuate socket 17 such that it is able to
Abutted against with the outer surface of the first flange 22 by the protruding end of 14, so that the radial direction of worm screw 51 can be rushed by this projection 14
The power of hitting buffers, it is also possible to make the connection reliability between elastic connection sleeve 21 and butterfly spring 11 higher.It is appreciated that
, the first flange 22 is also provided with dodging hole, with the generation preferably avoided interference with.
As shown in Figure 2 and Figure 7, in order to the installation between butterfly spring 11 and reducing gear housing 61 is carried out preferably
Location, ground, prevents butterfly spring 11 from rotating after mounting simultaneously, second can be provided with alignment pin 15, reducing gear
The installing hole of housing 61 is provided with the locating slot 62 matched with alignment pin 15.
Specifically, alignment pin 15 can be arranged on the side on butterfly spring 11 away from brace rod 13, so that location
Pin 15 and brace rod 13 are positioned at the both sides of butterfly spring 11, and then can better profit from brace rod 13 to buffer suffered by worm screw 51
The impact arrived so that the buffering effect of this worm screw supporting construction is more preferably.Preferably, alignment pin 15 and two brace rods 13 can in etc.
Lumbar triangle shape is distributed on butterfly spring 11 such that it is able to the worm screw supporting construction that the embodiment of the present invention is provided has more preferably
Ground buffer capacity.
In the another embodiment that the present invention provides, the first side of the second arcuate socket can be provided with multiple first opening
12, each first opening 12 is distributed on the bearing of trend of the first side, so that between the second flange 23 and the second arcuate socket
Install more convenient；Also improve the elasticity of butterfly spring 11 such that it is able to preferably buffering footpath suffered by worm screw 51 simultaneously
To impact.
Further, the second side of the second arcuate socket can be provided with multiple second opening 18, and each second opening 18 is uniform
On the bearing of trend of the second side, thus greatly increase the property easy for installation between the second flange 23 and the second arcuate socket,
Also further increase the elasticity of butterfly spring 11 so that this butterfly spring 11 can be to the axial punching suffered by worm screw 51 simultaneously
Hit, with radial impact, there is preferably buffering effect.
Specifically, each first opening 12 can be crisscross arranged with each second opening 18, so that this butterfly spring 11 exists
There is at second arcuate socket identical intensity and elasticity, and then enable to butterfly spring 11 and be hardly damaged and can be the most slow
Rush the impact suffered by worm screw 51.It is understood that the opening direction of the first opening 12 is towards the center of butterfly spring 11, the
The center of the opening direction of two openings 18 butterfly spring 11 dorsad.
As shown in Figure 4, in order to make the second flange 23 have preferable deformability, so that the second flange 23 and butterfly bullet
Installation between spring 11 is more convenient, and the second flange 23 can be provided with construction opening groove 25.Preferably, this construction opening groove
The medium position of 25 bearing of trends that can be arranged on the second flange 23, the carrying out installed to be more convenient for.
Further, the second end of elastic connection sleeve 21 can be provided with gear and connect flange 26, gear connect the side of flange 26 with
Bearing 41 fits, and gear connects the opposite side of flange 26 and fits with the limiting stand terrace 52 on worm screw 51, as shown in Figure 6, thus
Efficiently avoid when bearing 41 directly contacts with this limiting stand terrace 52 and produce abnormal sound because of shock, connect flange now by gear
The cushioning effect of 26, reduce further steering and the probability of bigger abnormal sound occurs.Preferably, gear connect flange 26 can edge
A circumferentially extending whole circle of this second end, to play preferably buffering effect.
The above is only the preferred embodiment of the present invention, it should be pointed out that these embodiments are merely to illustrate this
Invention rather than restriction the scope of the present invention, and, after having read present disclosure, relevant technical staff in the field
The present invention can make various change or amendment, and these equivalent form of values fall into the application appended claims equally and are limited
Scope.
Claims (10)
1. a worm screw supporting construction, it is characterised in that it includes elastic connection sleeve, bearing and butterfly spring, described bearing
The inwall interference fit of outer surface and described elastic connection sleeve, the inner surface of described bearing and worm screw interference fit；Described butterfly
First of shape spring fits with described bearing；First end of described elastic connection sleeve is provided with the engaging flange of annular, institute
State engaging flange on be provided with two limit opening grooves, limit opening groove described in two described engaging flange is divided into the first flange and
Second flange；The first arcuate socket and the second arcuate socket, described first arcuate socket and described second it is provided with on described butterfly spring
There is between arcuate socket the brace rod matched with described limit opening groove；Described first flange and described second flange are worn respectively
The second face crossing described first arcuate socket and described second arcuate socket and described butterfly spring fits.
Worm screw supporting construction the most according to claim 1, it is characterised in that its also include being arranged on described engaging flange with
Back-up ring between described second, on described back-up ring, the side away from described engaging flange is provided with limit rib；Described first arc
The limited impression matched with described limit rib it is provided with at shape hole.
Worm screw supporting construction the most according to claim 2, it is characterised in that be provided with described at described first arcuate socket
The projection that limited impression is corresponding.
Worm screw supporting construction the most according to claim 1, it is characterised in that be provided with alignment pin on described second, subtract
The installing hole of speed mechanism shell is provided with the locating slot matched with described alignment pin.
Worm screw supporting construction the most according to claim 4, it is characterised in that described alignment pin is arranged on described butterfly spring
On away from the side of described brace rod.
Worm screw supporting construction the most according to claim 1, it is characterised in that the first side of described second arcuate socket is provided with
Multiple first openings, each described first opening is distributed on the bearing of trend of described first side.
Worm screw supporting construction the most according to claim 6, it is characterised in that the second side of described second arcuate socket is provided with
Multiple second openings, each described second opening is distributed on the bearing of trend of described second side.
Worm screw supporting construction the most according to claim 7, it is characterised in that each described first opening is opened with each described second
Mouth is crisscross arranged.
Worm screw supporting construction the most according to claim 1, it is characterised in that be provided with construction opening on described second flange
Groove.
10. according to the worm screw supporting construction described in any one of claim 1 to 9, it is characterised in that the of described elastic connection sleeve
Two ends are provided with gear and connect flange, and described gear connects the side of flange and fits with described bearing, described gear connect the opposite side of flange with
Limiting stand terrace on described worm screw fits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610852796.2A CN106321783B (en) | 2016-09-26 | 2016-09-26 | A kind of worm screw support construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610852796.2A CN106321783B (en) | 2016-09-26 | 2016-09-26 | A kind of worm screw support construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321783A true CN106321783A (en) | 2017-01-11 |
| CN106321783B CN106321783B (en) | 2019-04-16 |
Family
ID=57820083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610852796.2A Expired - Fee Related CN106321783B (en) | 2016-09-26 | 2016-09-26 | A kind of worm screw support construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321783B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019219269A1 (en) * | 2018-05-17 | 2019-11-21 | Robert Bosch Gmbh | Steering gear and method for producing the steering gear |
| CN110654446A (en) * | 2018-06-29 | 2020-01-07 | 北汽福田汽车股份有限公司 | Speed reduction mechanism, electric power steering column, electric power steering and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201428774Y (en) * | 2009-04-30 | 2010-03-24 | 比亚迪股份有限公司 | Worm wheel and worm device |
| CN101734279A (en) * | 2008-11-12 | 2010-06-16 | 万都株式会社 | Reducer of electronic power steering apparatus |
| CN102421654A (en) * | 2009-05-08 | 2012-04-18 | Zf操作***有限公司 | Bearing system for a worm in a steering gear |
| CN102770675A (en) * | 2009-12-15 | 2012-11-07 | Zf操作***有限公司 | Steering gear having a fixed bearing and a floating bearing for a screw pinion |
| CN203717841U (en) * | 2014-02-26 | 2014-07-16 | 安徽江淮汽车股份有限公司 | Radial clearance eliminating structure and worm and gear clearance eliminating structure |
| DE102014218303A1 (en) * | 2014-09-12 | 2016-03-17 | Schaeffler Technologies AG & Co. KG | steering gear |
-
2016
- 2016-09-26 CN CN201610852796.2A patent/CN106321783B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734279A (en) * | 2008-11-12 | 2010-06-16 | 万都株式会社 | Reducer of electronic power steering apparatus |
| CN201428774Y (en) * | 2009-04-30 | 2010-03-24 | 比亚迪股份有限公司 | Worm wheel and worm device |
| CN102421654A (en) * | 2009-05-08 | 2012-04-18 | Zf操作***有限公司 | Bearing system for a worm in a steering gear |
| CN102770675A (en) * | 2009-12-15 | 2012-11-07 | Zf操作***有限公司 | Steering gear having a fixed bearing and a floating bearing for a screw pinion |
| CN203717841U (en) * | 2014-02-26 | 2014-07-16 | 安徽江淮汽车股份有限公司 | Radial clearance eliminating structure and worm and gear clearance eliminating structure |
| DE102014218303A1 (en) * | 2014-09-12 | 2016-03-17 | Schaeffler Technologies AG & Co. KG | steering gear |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019219269A1 (en) * | 2018-05-17 | 2019-11-21 | Robert Bosch Gmbh | Steering gear and method for producing the steering gear |
| CN112105544A (en) * | 2018-05-17 | 2020-12-18 | 罗伯特·博世有限公司 | Steering gear and method for producing a steering gear |
| US11447172B2 (en) | 2018-05-17 | 2022-09-20 | Robert Bosch Gmbh | Steering gear and method for producing the steering gear |
| CN112105544B (en) * | 2018-05-17 | 2023-01-31 | 罗伯特·博世有限公司 | Steering gear and method for producing a steering gear |
| CN110654446A (en) * | 2018-06-29 | 2020-01-07 | 北汽福田汽车股份有限公司 | Speed reduction mechanism, electric power steering column, electric power steering and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106321783B (en) | 2019-04-16 |
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| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: ANHUI JIANGHUAI AUTOMOBILE Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |