CN109378935A - A kind of external ventilation cooling system of scaled bulb tubular hydraulic generator - Google Patents
A kind of external ventilation cooling system of scaled bulb tubular hydraulic generator Download PDFInfo
- Publication number
- CN109378935A CN109378935A CN201811607118.5A CN201811607118A CN109378935A CN 109378935 A CN109378935 A CN 109378935A CN 201811607118 A CN201811607118 A CN 201811607118A CN 109378935 A CN109378935 A CN 109378935A
- Authority
- CN
- China
- Prior art keywords
- cooling system
- external ventilation
- hydraulic generator
- tubular hydraulic
- stator
- 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.)
- Pending
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of external ventilation cooling systems of scaled bulb tubular hydraulic generator, including external ventilation shaft and scaled bulb tubular hydraulic generator, external ventilation shaft is set in the outer concrete foundation of unit, external ventilation shaft connect respectively with the blast area in unit and the motor seat ring outside unit establish atmospheric closed self-loopa ventilation cooling system again, reduce ventilation cooling system for the occupancy of the confined space in unit, to enable middle-size and small-size scaled bulb tubular hydraulic generator that perfect atmospheric closed self-loopa ventilation cooling system is arranged, and then the profile arrangement of certifiable unit is smaller, to guarantee that scaled bulb tubular hydraulic generator has higher efficiency.
Description
Technical field
The present invention relates to technical field of hydraulic generators, especially a kind of external of scaled bulb tubular hydraulic generator is logical
Air cooling system.
Background technique
Atmospheric closed self-loopa ventilation cooling system is internal after generator longtime running because it is with good ventilation effect
It is still able to maintain clean and tidy clean, is conducive to the advantages that guaranteeing the electrical of coil insulation, mechanical performance for a long time, in bulb through-flow water wheels
It is widely used on generator.Limit of the middle-size and small-size scaled bulb tubular hydraulic generator by Turbine Flow Passage size
System, to guarantee hydraulic turbine efficiency with higher, base wall outer diameter dimension cannot obtain larger.Base wall outer dimension is opposite
It is smaller, perfect ventilation cooling system can not be arranged in generator unit, realize the closed self-loopa ventilating and cooling of generator.For
Guarantee that middle-size and small-size scaled bulb tubular hydraulic generator using closed self-loopa ventilation cooling system, has invented a kind of bulb through-flow
The external ventilation cooling system of formula hydrogenerator.
Summary of the invention
In order to fill up the blank of the prior art, the present invention provides a kind of external ventilation of scaled bulb tubular hydraulic generator
Cooling system.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of external ventilation cooling system of scaled bulb tubular hydraulic generator, including external ventilation shaft and motor
Seat ring, the motor seat ring are provided with multichannel ventilating duct and communicate with the inner cavity of tubular-turbine generator, and the motor seat ring is another
One end connects the external ventilation shaft air intake vent, is provided with air cooler in the external ventilation shaft, in the bubble head
It is provided with the unit wind deflector for separating generating set, blast area, the blast area opening are provided on the unit wind deflector
Towards stator or rotor, the stator core between cog of the stator offers axial ventilation hole, and the generating set is far from the drum
The space of the side Feng Qu is connected to ventilating duct.By the way that ventilation shaft is external, external ventilation shaft again respectively with the drum in unit
Atmospheric closed self-loopa ventilation cooling system is established in motor seat ring connection outside wind area and unit, reduces ventilation cooling system
For the occupancy of the confined space in unit, so that it is close to enable middle-size and small-size scaled bulb tubular hydraulic generator that perfect normal pressure is arranged
Close self-loopa ventilation cooling system.
As an improvement of the above scheme, the external ventilation shaft is set between workshop cover board and flow passage cover plate, institute
It states and is also filled with concrete between workshop cover board and the flow passage cover plate, offered on the flow passage cover plate inside connection bubble head
Through-hole, the external ventilation shaft air outlet are connected to by the through-hole with the blast area inside the bubble head.
As an improvement of the above scheme, the stator uses wall-attaching type structure, and external water stream is by bulb shell to stator
Carry out heat transfer cooling.Out frame is eliminated, using light bulb body case as out frame, the heat that can sufficiently generate stator
Amount passes in the river water being dissipated in runner, and can reduce hydrogenerator and bulb housing diameter, unit light bulb ratio is reduced, into one
Step optimization overcurrent condition is a kind of economic, high-efficient frame mode.
As an improvement of the above scheme, it is provided with array high pressure blower in the blast area, to increase ventilating system air quantity,
Enhance its air blast effect.
As an improvement of the above scheme, the rotor is shaftless cantilever structure, and the rotor bearing is on combination bearing
And be rigidly connected with hydrogenerator rotary shaft, specifically, the rotor uses shaftless cantilever structure, and unit reduces one
A rotor main shaft, weight saving are overhauled more simple and efficient.
As an improvement of the above scheme, bearing diagonal device is provided with below the bubble head, bearing diagonal device one end is solid
Due to water flow passage bottom, the fixed bubble head of other end support, hydrogenerator hull outside is provided with vertical supporting device,
The vertical supporting device is correspondingly arranged in below the stator adherence formula structure, and water is fixed in described vertical supporting device one end
Runner bottom is flowed, the other end is welded and fixed with generator housing, the setting of the bearing diagonal device and vertical supporting device, increases
The rigidity of unit, can effectively prevent vibrating, to guarantee inside the external ventilation shaft air outlet and the bubble head
The stability of blast area connection, prevents from that its leakproofness is caused to be destroyed because of vibration, to influence the blast area cooling wind air quantity.
As an improvement of the above scheme, the gap between the blast area opening, axial ventilation hole or stator and rotor, with
And the ventilating duct of motor seat ring forms air circulation path.
As an improvement of the above scheme, the generator unit further includes the brake apparatus with rotor field spider cooperation,
The brake apparatus is set on the air circulation path.
The beneficial effects of the present invention are: the present invention is by external by ventilating and cooling pipeline, external ventilation shaft is distinguished again
It is connect with the blast area in unit and the motor seat ring outside unit and establishes atmospheric closed self-loopa ventilation cooling system, reduced
Ventilation cooling system for the confined space in unit occupancy, so that middle-size and small-size scaled bulb tubular hydraulic generator be enable to be arranged
Perfect atmospheric closed self-loopa ventilation cooling system, and then the profile arrangement of certifiable unit is smaller, to guarantee lamp
Bubble tubular-turbine generator has higher efficiency.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is sectional view of the present invention；
Fig. 2 is stator core sectional view of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.Below in conjunction with embodiment, the present invention will be described in detail.
The present invention relates to a kind of external ventilation cooling systems of scaled bulb tubular hydraulic generator, below to of the invention
Preferred embodiment is described in further detail.
As shown in Figure 1, a kind of external ventilation cooling system of scaled bulb tubular hydraulic generator, including it is set to unit
Outer external ventilation shaft 10, the motor seat ring 20 being embedded in the outer concrete foundation of unit, described 20 one end of motor seat ring
It is connected and fixed with tubular-turbine generator, and is provided with multichannel ventilating duct and is communicated with tubular-turbine generator, be connected to position
The side for being placed in space between the stator core 51 and rotor 60 is installed, to guarantee the heat of subsequent cooling complete stator and rotor 60
Wind can come together in the space of stator core 51 and 60 side of rotor and be successfully entered in the ventilating duct that the motor seat ring 20 is arranged,
20 other end of motor seat ring connects 10 air intake vent of external ventilation shaft, so that hot wind can be from the motor seat ring 20
Into the external ventilation shaft 10, it is provided with air cooler 11 in the external ventilation shaft 10, with described outer to entering
The hot wind set in formula ventilation shaft 10 is cooled down, and is provided with the unit wind deflector 30 for separating generating set in the bubble head,
Blast area 40 is provided on the unit wind deflector 30, the blast area 40 is open towards stator 50 or rotor 60, the stator
50 stator core (51) between cog offers axial ventilation hole 511, and the design of the axial ventilation hole 511 can both make cooling wind
It is fully cooled stator core 51, the hot wind after can also making to have cooled down stator core 51 is smoothly collected to 20 ventilating duct of motor seat ring
Then place can smoothly enter into the ventilation shaft and participate in self-loopa.Space of the generating set far from 40 side of blast area
It is connected to ventilating duct., the present invention is preferably provided with a blast area 40, and the opening of blast area 40 is towards empty between stator 50 and rotor 60
Between, because rotor 60 is rotation, the cooling wind that blast area 40 is transmitted can cool down the circumferential direction of the rotor 60 of rotation, stator iron
Core 51 be also correspondingly arranged on axial ventilation hole 511 for cooling wind pass through stator core 51 is cooled down, and stator core 51 also
Heat is taken away by the circulating water in water flow passage using 50 wall-attaching type structure of stator, therefore a blast area 40 need to be only set
Unit is cooled down enough, to can guarantee the smaller of the profile arrangement of unit, to guarantee that through-flow type hydro-turbo generates electricity
Machine has higher efficiency.
Preferably, the external ventilation shaft 10 is set between workshop cover board 70 and flow passage cover plate 80, the stream
Road cover board 80 is the sealing plate between water flow passage and concrete foundation, between the workshop cover board 70 and the flow passage cover plate 80
Concrete is also filled with to enhance its leakproofness, 10 air intake vent end of the external ventilation shaft bending, opening connects the electricity
The ventilating duct that field ring 20 is arranged offers the through-hole inside connection bubble head, the external ventilation on the flow passage cover plate 80
10 air outlet of pipeline is connected to by the through-hole with the blast area 40 inside the bubble head.
Preferably, being provided with array high pressure blower 41 in the blast area 40, to increase ventilating system air quantity, enhance it
Air blast effect.
Preferably, the gap between the opening of blast area 40, axial ventilation hole 511 or stator 50 and rotor 60, with
And the ventilating duct of motor seat ring 20 forms air circulation path, the generator unit further includes cooperating with the rotor field spider
Brake apparatus 120, the brake apparatus 120 are set on the air circulation path, and traditional braking device 120 is due to position spy
Very, cooling difficulty, it is difficult to it is placed in traditional ventilation cooling system and is cooled down, and in the present invention, the brake apparatus 120
It can be by being set to the cooling effect reached on the air circulation path to the brake apparatus 120, good cooling results.
Preferably, the rotor 60 be shaftless cantilever structure, the rotor 60 be supported on combination bearing 90 and with
The rigid connection of hydrogenerator rotary shaft, specifically, the rotor 60 uses shaftless cantilever structure, and unit reduces one
60 main shaft of rotor, weight saving are overhauled more simple and efficient.
Preferably, being provided with bearing diagonal device 100 below the bubble head, described 100 one end of bearing diagonal device is fixed on
Water flow passage bottom, the fixed bubble head of other end support, hydrogenerator hull outside are provided with vertical supporting device 110,
The vertical supporting device 110 is correspondingly arranged in below the 50 wall-attaching type structure of stator, described 110 one end of vertical supporting device
It is fixed on water flow passage bottom, the other end is welded and fixed with generator housing, the bearing diagonal device 100 and vertical supporting device
110 setting increases the rigidity of unit, can effectively prevent vibrating, thus guarantee the external ventilation shaft air outlet with
The stability of blast area connection inside the bubble head, prevents from that its leakproofness is caused to be destroyed because of vibration, to influence the drum
Wind area cooling wind air quantity.
As shown in Fig. 2, 51 between cog of stator core is provided with axial ventilation hole 511, the axial ventilation hole 511 is set
It sets, the blast area 40 for being set to space side between the stator core 51 and rotor 60 can be made to realize cooling effect to the greatest extent
Fruit, for the stator core 51 after the cooling air cooling exported by blast area 40, a small amount of amount of residual heat passes through 50 wall-attaching type of stator
Structure is taken away by the circulating water of water flow passage.
Cooling wind ventilating and cooling path of the invention: when unit is run, rotor 60 is there are fanning effect, and the wind of rotor 60
It is identical as the wind direction that the blast area 40 generates to fan the wind direction that effect generates, therefore in the fanning effect of rotor 60 and institute
It states in blast area 40 under the action of high pressure blower 41, due to the blocking of the unit wind deflector 30, cooling wind is pressed into unit
Portion, space of a part between stator 50, rotor 60 and the axial ventilation hole 511 pass through, and takes away stator 50, rotor 60
Most of heat, a small amount of stator 50, rotor 60 heat by 50 wall adhering structure of stator by the circulating water band in water flow passage
It walks, another part is pressed into generating set lower part and the cooling brake apparatus 120, and stator 50 and rotor 60 are far from blast area 40
Side is summarized from the hot-air of space and axial ventilation hole 511 out between stator 50, rotor 60, these hot-airs pass through
The ventilating duct that motor seat ring 20 is arranged enters the external ventilation shaft 10 being set in concrete foundation, is divulged information by external
The cooling wind after cooling of air cooler 11 in pipeline 10 is again introduced into blast area 40, reenters generator by blast area 40
Group is internal to cool down generating set, forms an atmospheric closed self-loopa ventilation cooling system.
Finally, it is stated that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is limited, to the greatest extent
Pipe is described the invention in detail referring to preferred embodiment, it should be appreciated by those of ordinary skill in the art that can be right
Technical solution of the present invention is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be contained
It covers in scope of the presently claimed invention.
Claims (9)
1. a kind of external ventilation cooling system of scaled bulb tubular hydraulic generator, it is characterised in that: divulge information including external
Pipeline (10) and motor seat ring (20), the motor seat ring (20) are provided with the interior of multichannel ventilating duct and tubular-turbine generator
Chamber communicates, and motor seat ring (20) other end connects external ventilation shaft (10) air intake vent, the external ventilation
It is provided with air cooler (11) in pipeline (10), is provided with the unit wind deflector (30) for separating generating set, institute in the bubble head
It states and is provided on unit wind deflector (30) blast area (40), the blast area (40) is open towards stator (50) or rotor (60),
Stator core (51) between cog of the stator (50) offers axial ventilation hole (511), and the generating set is far from the air blast
The space of area (40) side is connected to ventilating duct.
2. a kind of external ventilation cooling system of scaled bulb tubular hydraulic generator according to claim 1, feature
Be: the external ventilation shaft (10) is set between workshop cover board (70) and flow passage cover plate (80), the workshop cover board
(70) it is also filled with concrete between the flow passage cover plate (80), is offered on the flow passage cover plate (80) inside connection bubble head
Through-hole, external ventilation shaft (10) air outlet by the through-hole and it is described bubble head inside blast area (40) even
It is logical.
3. a kind of external ventilation cooling system of scaled bulb tubular hydraulic generator according to claim 1, feature
Be: the stator (50) uses wall-attaching type structure, and external water stream carries out heat transfer cooling to stator (50) by bulb shell.
4. a kind of external ventilation cooling system of scaled bulb tubular hydraulic generator according to claim 1, feature
It is: is provided with array high pressure blower (31) in the blast area (40).
5. a kind of external ventilation cooling system of scaled bulb tubular hydraulic generator according to claim 1, feature
Be: the rotor (60) is shaftless cantilever structure, and the rotor (60) is supported on combination bearing (90) and sends out with water wheels
Electric machine rotational axis rigid connection.
6. a kind of external ventilation cooling system of scaled bulb tubular hydraulic generator according to claim 1, feature
It is: is provided with bearing diagonal device (100) below the bubble head, water flow passage is fixed in described bearing diagonal device (100) one end
Bottom, the fixed bubble head of other end support.
7. a kind of external ventilation cooling system of scaled bulb tubular hydraulic generator according to claim 1, feature
Be: hydrogenerator hull outside is provided with vertical supporting device (110), and the vertical supporting device (110) is correspondingly arranged
Below the stator (50) wall-attaching type structure, water flow passage bottom is fixed in described vertical supporting device (110) one end, another
End is welded and fixed with generator housing.
8. a kind of external ventilation cooling system of scaled bulb tubular hydraulic generator according to claim 1, feature
It is: the gap between blast area (40) opening, axial ventilation hole (511) or stator (50) and rotor (60), Yi Ji electricity
The ventilating duct of field ring (20) forms air circulation path.
9. a kind of external ventilation cooling system of scaled bulb tubular hydraulic generator according to claim 8, feature
Be: the generator unit further includes the brake apparatus (120) with rotor field spider cooperation, the brake apparatus (120)
It is set on the air circulation path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811607118.5A CN109378935A (en) | 2018-12-27 | 2018-12-27 | A kind of external ventilation cooling system of scaled bulb tubular hydraulic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811607118.5A CN109378935A (en) | 2018-12-27 | 2018-12-27 | A kind of external ventilation cooling system of scaled bulb tubular hydraulic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109378935A true CN109378935A (en) | 2019-02-22 |
Family
ID=65371832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811607118.5A Pending CN109378935A (en) | 2018-12-27 | 2018-12-27 | A kind of external ventilation cooling system of scaled bulb tubular hydraulic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109378935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994354A (en) * | 2021-02-20 | 2021-06-18 | 浙江富春江水电设备有限公司 | Large-scale bulb tubular hydraulic generator ventilation cooling system without air cooler |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156309A (en) * | 1976-06-23 | 1977-12-26 | Hitachi Ltd | Air cooler for rotary machine |
| JPS59220045A (en) * | 1983-05-25 | 1984-12-11 | Fuji Electric Co Ltd | Valve hydraulic turbine generator |
| JPH01138948A (en) * | 1987-11-26 | 1989-05-31 | Tokyo Electric Power Co Inc:The | Cooling device for vertical shaft rotary electric machine |
| CN1889332A (en) * | 2006-07-25 | 2007-01-03 | 四川东风电机厂有限公司 | Medium and high speed large capacity hydroelectric generator |
| CN204030860U (en) * | 2014-08-28 | 2014-12-17 | 广东梅雁吉祥水电股份有限公司坝头水电站 | There is the hydraulic generator of ventilation cooling device |
| CN104467285A (en) * | 2014-12-11 | 2015-03-25 | 北京百正创源科技有限公司 | Novel motor cooling system |
| CN205753850U (en) * | 2016-05-20 | 2016-11-30 | 湖南云箭科技有限公司 | The ventilation cooling device of a kind of vertical hydrogenerator and vertical hydrogenerator |
| CN107147245A (en) * | 2017-06-30 | 2017-09-08 | 湖南云箭集团有限公司 | A kind of scaled bulb tubular hydraulic generator |
| CN207150345U (en) * | 2017-06-30 | 2018-03-27 | 湖南云箭集团有限公司 | A kind of ventilation cooling system of hydrogenerator |
-
2018
- 2018-12-27 CN CN201811607118.5A patent/CN109378935A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156309A (en) * | 1976-06-23 | 1977-12-26 | Hitachi Ltd | Air cooler for rotary machine |
| JPS59220045A (en) * | 1983-05-25 | 1984-12-11 | Fuji Electric Co Ltd | Valve hydraulic turbine generator |
| JPH01138948A (en) * | 1987-11-26 | 1989-05-31 | Tokyo Electric Power Co Inc:The | Cooling device for vertical shaft rotary electric machine |
| CN1889332A (en) * | 2006-07-25 | 2007-01-03 | 四川东风电机厂有限公司 | Medium and high speed large capacity hydroelectric generator |
| CN204030860U (en) * | 2014-08-28 | 2014-12-17 | 广东梅雁吉祥水电股份有限公司坝头水电站 | There is the hydraulic generator of ventilation cooling device |
| CN104467285A (en) * | 2014-12-11 | 2015-03-25 | 北京百正创源科技有限公司 | Novel motor cooling system |
| CN205753850U (en) * | 2016-05-20 | 2016-11-30 | 湖南云箭科技有限公司 | The ventilation cooling device of a kind of vertical hydrogenerator and vertical hydrogenerator |
| CN107147245A (en) * | 2017-06-30 | 2017-09-08 | 湖南云箭集团有限公司 | A kind of scaled bulb tubular hydraulic generator |
| CN207150345U (en) * | 2017-06-30 | 2018-03-27 | 湖南云箭集团有限公司 | A kind of ventilation cooling system of hydrogenerator |
Non-Patent Citations (1)
| Title |
|---|
| 费树年: "《大型灯泡贯流式水轮发电机通风冷却技术》", 《东方电机》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994354A (en) * | 2021-02-20 | 2021-06-18 | 浙江富春江水电设备有限公司 | Large-scale bulb tubular hydraulic generator ventilation cooling system without air cooler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3819497B1 (en) | Generator and wind turbine | |
| CN213717784U (en) | Cooling system of two-stage air suspension centrifugal permanent magnet motor direct-drive air compressor | |
| CN101834490B (en) | Cooler of wind power generator | |
| CN103490558B (en) | Direct wind-driven generator cooling system | |
| WO2021027301A1 (en) | Stator block, stator assembly, and cooling system for stator assembly | |
| CN106481567A (en) | Electronic liquid pump | |
| CN112260485B (en) | Double-pumping interactive high-power density motor | |
| CN210927353U (en) | Low-vibration low-noise vertical motor | |
| CN109391088A (en) | Disc type electric machine and its radiator structure | |
| CN113202794A (en) | Compact suspension air blower and air self-cooling method of compact suspension air blower | |
| CN109980852A (en) | A kind of wind-driven generator aeration radiation system | |
| CN209001745U (en) | Disc type electric machine and its radiator structure | |
| CN101350543A (en) | Low-temperature lifting wind power generator | |
| CN109378935A (en) | A kind of external ventilation cooling system of scaled bulb tubular hydraulic generator | |
| CN101442238B (en) | Hollow air cooler for motor | |
| CN201252447Y (en) | Air-to-air cooler for motor | |
| CN211266681U (en) | Forced cooling type solid rotor motor | |
| WO2020220834A1 (en) | Cooling system, motor, and wind turbine generating set | |
| CN103825405B (en) | Cooling structure of double-rotor motor | |
| CN206432844U (en) | One kind is used for rotor winding formula motor ventilation and cooling structure | |
| CN208793321U (en) | A kind of air cooling equipment for boiler pump motor | |
| CN114696537B (en) | Cooling system for wind generating set and wind generating set | |
| CN105406634B (en) | Micro digital air suction motor | |
| CN211183621U (en) | Noise-reduction heat dissipation structure of motor shell | |
| CN107040090A (en) | Impeller assembly, integrated motor and household electrical appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190222 |
|
| RJ01 | Rejection of invention patent application after publication |