CN106931143A - A kind of dual input shaft three-speed gear - Google Patents
A kind of dual input shaft three-speed gear Download PDFInfo
- Publication number
- CN106931143A CN106931143A CN201511035459.6A CN201511035459A CN106931143A CN 106931143 A CN106931143 A CN 106931143A CN 201511035459 A CN201511035459 A CN 201511035459A CN 106931143 A CN106931143 A CN 106931143A
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- Prior art keywords
- input shaft
- gear
- clutch
- speed
- motor
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- 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.)
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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
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
-
- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H2003/445—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion without permanent connection between the input and the set of orbital gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The present invention provides a kind of dual input shaft three-speed gear, and it is mainly used in electric automobile.The speed changer can provide three forwards, solve the problems, such as only single-stage speed reducing than electric automobile can not take into account driving force and speed.The speed changer is including epicyclic gear train, gear selecting component, the first input shaft, the second input shaft etc., two input shafts link with two groups of motors respectively, by two groups of gear selecting components respectively using the sun gear or gear ring of epicyclic gear train as input block, planet carrier can obtain three kinds of gear ratio of not synchronized ratio as output block.This kind of speed changer not only has compact conformation, lightweight, also with advantages such as transmission efficiency, reliable transmissions, is particularly suitable for the speed changer for electric automobile.
Description
Technical field
The present invention relates to automotive transmission technology, more particularly to a kind of dual input shaft three-speed gear.
Background technology
The driving cycle of automobile is complicated and changeable, and running resistance and travel speed change greatly, need very when anxious acceleration and climb very steep slopes
Big driving force overcomes running resistance, driving wheel speed higher is needed when running at high speed again, using only one of which gear ratio
The electric automobile of single reduction gear transmission is often attended to one thing and lose sight of another, it is difficult to meet operating mode needs that automobile has very large driving force,
Some operating modes need the power demand complicated and changeable of very high speed.
Some electric automobiles use more powerful motor, and automobile dynamic quality is lifted with bigger reserve capacity.But it is high-power
Motor directly causes that the cost of motor, electric machine control system, battery system increases, and is unfavorable for penetration and promotion.
If electric automobile has more gear numbers and the gear of suitable gear ratio can be selected according to the power demand of automobile, no
But the power performance of electric automobile can be obviously improved, moreover it is possible to reduce to motor, electric machine control system, power battery pack
It is required that, so as to reduce power system of electric automobile cost.The further efficiency collection of illustrative plates research to motor understands, with more
The electric automobile gear device of many gear numbers can be such that the power output of motor is more pasted with the power demand of automobile by reasonable gear selecting
Near match so that motor has delivery efficiency higher, this is also very meaningful to saving electric energy, extension distance travelled.
Patent document CN101380768A discloses a kind of two-speed automatic transmission for electric vehicle, including input shaft,
Output shaft, clutch, brake, epicyclic gear train and differential mechanism, input shaft couple with sun gear, and brake can be by gear ring
Locking, clutch can be synchronous by sun gear and gear ring and connection is rotated together.Operational brake drives gear ring locking, clutch
Open, motion and moment of torsion by input shaft by sun gear input planet gear arrange slow down after again by planet carrier output can obtain one compared with
The low or first gear of big gear ratio；Operational brake discharges gear ring, and closure clutch is linked together sun gear and gear ring, moves
Being exported by planet carrier again after input shaft is arranged by sun gear and gear ring input planet gear with moment of torsion can obtain a direct high.
The speed changer is skillfully constructed, and can obtain the bottom gear and a direct high for smaller gear ratio of larger gear ratio, improves
The power performance of electric automobile, but the shifting of transmission speed discrepancy is too big, and shift quality, and only two speed changes are influenceed unavoidably
The electric automobile gear device of ratio can't well meet the changeable power demand of Automobile Complex.
Booming electric automobile market needs the speed changer with more gear numbers, and research and development are adapted to the multi gear of electric automobile
Position speed changer accords with the demands of the market.
The content of the invention
Have three gears, shift qualities high it is an object of the invention to provide one kind, and compact conformation, lightweight automobile become
Fast device, is particularly suitable for the dual input shaft three-speed gear of electric automobile.
To achieve the above object, the technical scheme taken of the present invention is：A kind of dual input shaft three-speed gear is provided, including：
First input shaft, the second input shaft, output shaft, case of transmission, wherein, the dual input shaft three-speed gear also includes
Epicyclic gear train, epicyclic gear train input shaft, the first gear selecting component, the second gear selecting component, the first input shaft and planetary gear
Row's input shaft transmits motion and moment of torsion by gear (or sprocket wheel), and the sun gear of epicyclic gear train is selected by the first gear selecting component
Select and link transmission motion and moment of torsion with epicyclic gear train input shaft or be locked out sun gear with case of transmission link, planet tooth
The gear ring of schedule selects to link transmission motion and moment of torsion or and speed changer with epicyclic gear train input shaft by the second gear selecting component
Housing links is locked out gear ring, and used as output shaft, the second input shaft passes through gear to the planet carrier of epicyclic gear train with planet carrier
(or sprocket wheel) transmission motion and moment of torsion.
In some embodiments, the first input shaft is coaxial with the second input shaft or parallel arrangement, the first input shaft and one group of drive
Dynamic motor (or other engines) connection, the second input shaft couples with another group of motor (or other engines).
In some embodiments, the first input shaft is coaxial with the second input shaft or is arranged in parallel, and the speed of the dual input shaft three becomes
Fast device also includes first clutch, first clutch axle, and the first input shaft couples with first clutch, first clutch axle and
One group of motor (or other engines) connection, the second input shaft joins with another group of motor (or other engines)
Connect.
In some embodiments, the first input shaft is coaxial with the second input shaft or is arranged in parallel, and the speed of the dual input shaft three becomes
Fast device also includes first clutch, first clutch axle, second clutch, second clutch axle, the first input shaft and first
Clutch connection, the second input shaft couple with second clutch, first clutch axle and one group of motor (or other start
Machine) couple, second clutch axle couples with another group of motor (or other engines).
In some embodiments, the gear selection preferred synchronizer of component.
Beneficial effect
By the description of preceding solution, it is understood that the dual input shaft four-speed gear box of present invention offer because using above-mentioned side
Case, can obtain following beneficial effect：
Three gear ratio can be provided, it is more interval than, wide in range gear ratio with careful tooth；
It is compact conformation, lightweight；
Structural reliability is high, transmission efficiency；
Because having two input shafts, can link with two motors (or other engines) respectively, be capable of achieving gear pre-selection, change
Shelves do not interrupt power input, along with careful tooth ratio, with shift quality higher；
Because have two input shafts, can respectively with two motors (or other engines) link, then add more gear numbers,
Wider range of gear ratio is interval, and the gear of smaller gear ratio may be selected when power needed for automobile cruise traveling is smaller and company is disconnected
Tying one of motor can improve motor delivery efficiency, the gear of larger gear ratio may be selected when suddenly accelerating or climbing and make two
Individual motor exports power and can improve automobile dynamic quality jointly, meets the power demand of user Geng Gao.
Brief description of the drawings
Accompanying drawing as herein described is only used for illustrative purpose, it should be understood that illustrate and specific example is only intended to illustrate mesh
, without being intended to limit scope disclosed by the invention.
In the accompanying drawings, identical label as one man represents identical element, component or feature.
Fig. 1 is the dual input shaft three-speed gear structural representation according to one of the preferred embodiment of the present invention.
Fig. 2 is the dual input shaft three-speed gear structural representation according to the two of the preferred embodiment of the present invention.
Fig. 3 is the dual input shaft three-speed gear structural representation according to the three of the preferred embodiment of the present invention.
Fig. 4 is the connection relationship by gear selecting component according to associated components in one of preferred embodiment of the present invention, two, three.
Description of reference numerals：
01st, the dual input shaft three-speed gear according to one of the preferred embodiment of the present invention
02nd, the dual input shaft three-speed gear of two according to the preferred embodiment of the present invention
03rd, the dual input shaft three-speed gear of three according to the preferred embodiment of the present invention
11st, the first input shaft
12nd, the second input shaft
13rd, epicyclic gear train input shaft
21st, first clutch
22nd, second clutch
23rd, first clutch axle
24th, second clutch axle
30th, epicyclic gear train
31st, gear ring
32nd, planet carrier (output shaft)
33rd, sun gear
40th, case of transmission
41st, the first gear selecting component
42nd, the second gear selecting component
50th, the first input shaft gear (or sprocket wheel)
51st, epicyclic gear train input shaft gear (or sprocket wheel)
52nd, the second input shaft gear (or sprocket wheel)
53rd, planet carrier gear (or sprocket wheel)
Specific embodiment
To make technical problem solved by the invention, technical scheme and beneficial effect become more apparent, below in conjunction with accompanying drawing and
Preferred embodiment, is described in further detail to the present invention.It should be appreciated that specific embodiments described below is only
Be used to illustrate, explain the present invention, it is substantially only exemplary, rather than be intended for limitation disclosure of the invention, should
With or purposes.
As shown in figure 1, the dual input shaft three-speed gear 01 according to one of the preferred embodiment of the present invention, including：First is defeated
Enter axle 11, the second input shaft 12, output shaft (planet carrier) 32, case of transmission 40, wherein, the dual input shaft three
Speed transmission 01 also includes epicyclic gear train 30, epicyclic gear train input shaft 13, the first gear selecting component 41, the second gear selecting
Component 42, the first input shaft 11 and epicyclic gear train input shaft 13 by gear (or sprocket wheel) 50 and 51 transmit motion and
Moment of torsion, the sun gear 33 of epicyclic gear train is selected to link with epicyclic gear train input shaft 13 and passed by the first gear selecting component 41
Pass motion and moment of torsion or linking with case of transmission 40 is locked out sun gear 33, the gear ring 31 of epicyclic gear train passes through the
Two gear selecting component 42 is selected to link transmission motion and moment of torsion with epicyclic gear train input shaft 13 or linked with case of transmission 40
Be locked out gear ring, the planet carrier 32 of epicyclic gear train as output shaft, the second input shaft 12 and output shaft (planet carrier)
32 transmit motion and moment of torsion by gear (or sprocket wheel) 52 and 53.
Wherein, the first input shaft 11 and the second input shaft 12 coaxial or parallel arrangement, the first input shaft 11 and one group of driving
Motor (or other engines) couples, and the second input shaft 12 couples with another group of motor (or other engines).
Gear selecting component 41 (or 42) of the present invention is a kind of dress for making associated components link transmission motion and moment of torsion two-by-two
Put, such as synchronizer.
Preferred synchronizer is used as gear selecting component, the first input shaft 11 and epicyclic gear train input shaft in the preferred embodiment of the present invention
13 preferred gear transmission motions and moment of torsion, the second input shaft 12 transmit motion and moment of torsion with the preferred gear of output shaft 14.
First input shaft 11 and the first input shaft gear (or sprocket wheel) 50 can be reduced to same part, the second input shaft 12
Same part, epicyclic gear train input shaft 13 and epicyclic gear train can be reduced to the second input shaft gear (or sprocket wheel) 52
Input shaft gear (or sprocket wheel) 51 can be reduced to same part, and planet carrier 32 can letter with planet carrier gear (or sprocket wheel) 53
Turn to same part.
When the selection of the first gear selecting component 41 makes sun gear 33 link transmission motion and moment of torsion with epicyclic gear train input shaft 13,
Sun gear 33 disconnects with case of transmission 40 and linking；Conversely, when the selection of the first gear selecting component 41 makes sun gear 33 and speed change
When device housing 40 links and is locked out sun gear 33, sun gear 33 disconnects with epicyclic gear train input shaft 13 and linking；When
When the selection of second gear selecting component 42 makes gear ring 31 link transmission motion and moment of torsion with epicyclic gear train input shaft 13, gear ring 31
Disconnected with case of transmission 40 and linked；Conversely, when the selection of the second gear selecting component 42 makes gear ring 31 and case of transmission 40
When linking and being locked out gear ring 31, gear ring 31 disconnects with epicyclic gear train input shaft 13 and linking.
To more fully understand the dual input shaft three-speed gear 01 according to one of the preferred embodiment of the present invention, below to the implementation
Each shelves power transmission line of dual input shaft three-speed gear is described in detail in example：
First grade of power transmission line：
The selection of first gear selecting component 41 makes sun gear 33 link transmission motion and moment of torsion with epicyclic gear train input shaft 13, the
The selection of two gear selecting component 42 makes gear ring 31 link with case of transmission 40 is locked out gear ring 31.
The power of first group of motor (or other engines) is input into through the first input shaft 11, then through the first input shaft gear (or
Sprocket wheel) 50, epicyclic gear train input shaft gear (or sprocket wheel) 51 pass to epicyclic gear train input shaft 13, then by first
Gear selecting component 41 passes to sun gear 33, defeated by planet carrier 32 after being slowed down by the input planet gear of sun gear 33 row 30.
The power of second group of motor (or other engines) is input into through the second input shaft 12, then through the second input shaft gear (or
Sprocket wheel) 52, planet carrier gear (or sprocket wheel) 53 pass to planet carrier 32, exported by planet carrier 32.
The power transmission line of second gear：
The selection of first gear selecting component 41 makes sun gear 33 link with case of transmission 40 is locked out sun gear 33, the second choosing
The shelves selection of component 42 makes gear ring 31 link transmission motion and moment of torsion with epicyclic gear train input shaft 13.
The power of first group of motor (or other engines) is input into through the first input shaft 11, then through the first input shaft gear (or
Sprocket wheel) 50, epicyclic gear train input shaft gear (or sprocket wheel) 51 pass to epicyclic gear train input shaft 13, by second choosing
Shelves component 42 passes to gear ring 31, then after being slowed down by the input planet gear of gear ring 31 row 30, is exported by planet carrier 32.
The power of second group of motor (or other engines) is input into through the second input shaft 12, then through the second input shaft gear (or
Sprocket wheel) 52, output shaft gear (or sprocket wheel) 53 pass to planet carrier 32, exported by planet carrier 32.
The power transmission line of third gear：
The selection of first gear selecting component 41 makes sun gear 33 link transmission motion and moment of torsion with epicyclic gear train input shaft 13, the
The selection of two gear selecting component 42 makes gear ring 31 link transmission motion and moment of torsion with epicyclic gear train input shaft 13.
The power of first group of motor (or other engines) is input into through the first input shaft 11, then through the first input shaft gear (or
Sprocket wheel) 50, epicyclic gear train input shaft gear (or sprocket wheel) 51 pass to epicyclic gear train input shaft 13, dynamic branch,
A part passes to sun gear 33 through the first gear selecting component 41, by the input planet gear of sun gear 33 row 30, another part
Gear ring 31 is passed to through the second gear selecting component 42, by the input planet gear of gear ring 31 row 30, then is exported by planet carrier 32.
The power of second group of motor (or other engines) is input into through the second input shaft 12, then through the second input shaft gear (or
Sprocket wheel) 52, output shaft gear (or sprocket wheel) 53 pass to planet carrier 32, exported by planet carrier 32..
As shown in Fig. 2 according to the preferred embodiment of the present invention two dual input shaft three-speed gear 02, according to the present invention it is excellent
The two of embodiment dual input shaft three-speed gear 02 is selected to become with the speed of dual input shaft three according to one of the preferred embodiment of the present invention
The Main Differences of fast device 01：The first clutch is additionally arranged between the first input shaft 11 and motor (or other power sources)
Device 21, with reference to according to the dual input shaft three-speed gear 01 of one of the preferred embodiment of the present invention be understood that preferred embodiment it
Two dual input shaft transmission 02.
As shown in figure 3, according to the preferred embodiment of the present invention three dual input shaft three-speed gear 03, according to the present invention it is excellent
The three of embodiment dual input shaft three-speed gear 03 is selected to become with the speed of dual input shaft three according to one of the preferred embodiment of the present invention
The Main Differences of fast device 01：The first clutch is additionally arranged between the first input shaft 11 and motor (or other power sources)
Device 21；Second clutch 22 is additionally arranged between the second input shaft 12 and motor (or other power sources), with reference to root
The three of preferred embodiment dual input shaft is understood that according to the dual input shaft three-speed gear 01 of one of the preferred embodiment of the present invention
Speed changer 03.
As shown in figure 4, being to pass through gear selecting component according to associated components in one of preferred embodiment of the present invention (or two or three)
Connection relationship.
It should be understood that dual input shaft four-speed gear box of the invention, can be by one group of motor (or other engines)
There is provided power, also can two groups of motors (or other engines) and meanwhile provide power.
It should be understood that the description more than present invention is only exemplary, and without departing from the variant of essence of the invention
Intention is within the scope of the present invention.This variant is not regarded as a departure from the spirit and scope of the invention.
Claims (5)
1. a kind of dual input shaft three-speed gear, including：First input shaft, the second input shaft, output shaft, speed change
Device housing, it is characterised in that the dual input shaft three-speed gear also includes epicyclic gear train, planet tooth
Schedule input shaft, the first gear selecting component, the second gear selecting component, the first input shaft are input into epicyclic gear train
Axle transmits motion and moment of torsion by gear (or sprocket wheel), and the sun gear of epicyclic gear train passes through the first gear selecting
Component selects to link transmission motion and moment of torsion or link with case of transmission with epicyclic gear train input shaft to make
Sun gear is locked out, and the gear ring of epicyclic gear train selects to be input into epicyclic gear train by the second gear selecting component
Axle links transmission motion or moment of torsion or linking with case of transmission is locked out gear ring, the row of epicyclic gear train
Used as output shaft, the second input shaft transmits motion and moment of torsion to carrier with planet carrier by gear (or sprocket wheel).
2. dual input shaft three-speed gear according to claim 1, it is characterised in that the first input shaft and
Two input shafts are coaxial or are arranged in parallel, and the first input shaft couples with one group of motor or other power sources,
Second input shaft couples with another group of motor or other power sources.
3. dual input shaft three-speed gear according to claim 1, it is characterised in that the first input shaft and
Two input shafts are coaxial or parallel arrangement, and the dual input shaft three-speed gear is also comprising first clutch, the
One clutch shaft, the first input shaft couples with first clutch, first clutch axle and one group of motor
Or other power sources couple, the second input shaft couples with another group of motor or other power sources.
4. dual input shaft three-speed gear according to claim 1, it is characterised in that the first input shaft and
Two input shafts are coaxial or parallel arrangement, and the dual input shaft three-speed gear is also comprising first clutch, the
One clutch shaft, second clutch, second clutch axle, the first input shaft couples with first clutch,
Second input shaft couples with second clutch, first clutch axle and one group of motor or other power sources
Connection, second clutch axle couples with another group of motor or other power sources.
5. according to any described dual input shaft three-speed gear in Claims 1-4, it is characterised in that gear selecting
The preferred synchronizer of component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511035459.6A CN106931143A (en) | 2015-12-31 | 2015-12-31 | A kind of dual input shaft three-speed gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511035459.6A CN106931143A (en) | 2015-12-31 | 2015-12-31 | A kind of dual input shaft three-speed gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106931143A true CN106931143A (en) | 2017-07-07 |
Family
ID=59443823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511035459.6A Pending CN106931143A (en) | 2015-12-31 | 2015-12-31 | A kind of dual input shaft three-speed gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106931143A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204429A (en) * | 2016-12-16 | 2018-06-26 | 重庆硬核派传动科技有限公司 | A kind of three speed compare epicyclic transmission |
| CN111365436A (en) * | 2020-04-17 | 2020-07-03 | 丁红涛 | Automatic gearbox of power switch |
| CN111677823A (en) * | 2020-07-20 | 2020-09-18 | 合肥工业大学 | Gear box is lubricated with three-speed gear pump power pack |
| CN113650488A (en) * | 2021-08-20 | 2021-11-16 | 北方汤臣传动科技有限公司 | Transmission system with double-motor power coupling function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1418297A (en) * | 2000-11-17 | 2003-05-14 | 安东诺夫汽车技术有限公司 | Tranmission devices, for group vehicles and move particularly for motors-cars |
| CN202152008U (en) * | 2011-07-19 | 2012-02-29 | 东风汽车公司 | Driving system of hybrid power automobile based on planetary wheel transmission |
| CN103727189A (en) * | 2012-10-15 | 2014-04-16 | 通用汽车环球科技运作有限责任公司 | Hybrid transmission with single planetary gear set and multiple operating modes |
-
2015
- 2015-12-31 CN CN201511035459.6A patent/CN106931143A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1418297A (en) * | 2000-11-17 | 2003-05-14 | 安东诺夫汽车技术有限公司 | Tranmission devices, for group vehicles and move particularly for motors-cars |
| CN202152008U (en) * | 2011-07-19 | 2012-02-29 | 东风汽车公司 | Driving system of hybrid power automobile based on planetary wheel transmission |
| CN103727189A (en) * | 2012-10-15 | 2014-04-16 | 通用汽车环球科技运作有限责任公司 | Hybrid transmission with single planetary gear set and multiple operating modes |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204429A (en) * | 2016-12-16 | 2018-06-26 | 重庆硬核派传动科技有限公司 | A kind of three speed compare epicyclic transmission |
| CN108204429B (en) * | 2016-12-16 | 2021-09-14 | 重庆红岭动力技术有限公司 | Three-speed-ratio planetary gear speed change mechanism |
| CN111365436A (en) * | 2020-04-17 | 2020-07-03 | 丁红涛 | Automatic gearbox of power switch |
| CN111677823A (en) * | 2020-07-20 | 2020-09-18 | 合肥工业大学 | Gear box is lubricated with three-speed gear pump power pack |
| CN111677823B (en) * | 2020-07-20 | 2024-04-19 | 合肥工业大学 | Gear box lubrication is with three-speed gear pump power pack |
| CN113650488A (en) * | 2021-08-20 | 2021-11-16 | 北方汤臣传动科技有限公司 | Transmission system with double-motor power coupling function |
| CN113650488B (en) * | 2021-08-20 | 2023-11-21 | 北方汤臣传动科技有限公司 | Transmission system with double-motor power coupling function |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190916 Address after: 400000 Qingyan science and technology venture Valley, 4 Xinglong Road, Jiulongpo District, Chongqing Applicant after: Chongqing Hongling Power Technology Co., Ltd. Address before: Unit 22-2 No. 1963, Ruitian Road, Yuzhong District, Chongqing 400043 Applicant before: Chongqing hard core drive technology Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |
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| RJ01 | Rejection of invention patent application after publication |