CN108683154B - A kind of over-pressure safety device of Internet of Things radiofrequency launcher - Google Patents
A kind of over-pressure safety device of Internet of Things radiofrequency launcher Download PDFInfo
- Publication number
- CN108683154B CN108683154B CN201810629374.8A CN201810629374A CN108683154B CN 108683154 B CN108683154 B CN 108683154B CN 201810629374 A CN201810629374 A CN 201810629374A CN 108683154 B CN108683154 B CN 108683154B
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- electromagnet
- contact
- cutting ferrule
- sliding block
- 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.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 206010014357 Electric shock Diseases 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/041—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature additionally responsive to excess current
Landscapes
- Toys (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The invention discloses a kind of over-pressure safety devices of Internet of Things radiofrequency launcher; device noumenon two sides have been respectively fixedly connected with sleeve; sleeve communication apparatus body interior and the external world; device noumenon upper left-hand is equipped with sliding slot; be slidably connected the sliding block that insulate in sliding slot; device noumenon top is equipped with strip through slot; sliding slot is located at strip through slot two sides; and insulation sliding block passes through strip through slot; insulation sliding block lower end is fixedly connected with metal plate; it is fixedly connected with flexible conductive column in the middle part of metal plate left side, be slidably connected cable and damper ends in flexible conductive column, and cable passes through sleeve.The device passes through cutting ferrule and contact current turns ON, electromagnet energizing magnetic attracts metal plate, it is lower under electromagnet magneticaction after Panasonic's insulation sliding block that cutting ferrule is kept to be bonded conduction with contact, when voltage is excessive, fusible link is blown, it is magnetic that electromagnet loses point recession, under spring force effect cutting ferrule is separated at this time with contact, prevents from forgetting to operate a switch when replacing fusible link from dynamic circuit breaker lock that maloperation is caused to get an electric shock.
Description
Technical field
The present invention relates to a kind of circuit protection device, the over-pressure safety device of specifically a kind of Internet of Things radiofrequency launcher.
Background technique
When overvoltage protection refers to that protected circuit voltage is more than scheduled maximum value, disconnects power supply or keep controlled plant electric
A kind of low protected mode of pressure drop.Usual way is using metallic conductor as melt and by circuit disjunction, by it currently on the market
Be series in circuit, when overload or short circuit current pass through melt when, melt itself will generate heat and fuse, thus to electric system,
Various electrical equipments and household electrical appliance all play certain protective effect.
But after existing protective device first needs to pull down in electric brake in renewal part the comprehensive power-off of realization mostly at present
Just replaceable, when staff forgets to operate a switch and replace, there are great security risks, and electric shock risk easily occurs, serious to endanger
The life and health of evil staff.
Summary of the invention
The purpose of the present invention is to provide a kind of over-pressure safety devices of Internet of Things radiofrequency launcher, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of over-pressure safety device of Internet of Things radiofrequency launcher, including device noumenon, flexible conductive column, insulation sliding block,
Fixed cylinder, torch, electromagnet, micromotor and temperature sensor, described device ontology two sides have been respectively fixedly connected with sleeve, set
Cylinder communication apparatus body interior and the external world, device noumenon upper left-hand are equipped with sliding slot, and be slidably connected the sliding block that insulate in sliding slot, device
Body upper part is equipped with strip through slot, and sliding slot is located at strip through slot two sides, and the sliding block that insulate passes through strip through slot, sliding block lower end of insulating
It is fixedly connected with metal plate, insulation sliding block is that rigid plastics material is made；Flexible lead is fixedly connected in the middle part of the metal plate left side
Electric column, be slidably connected in flexible conductive column cable and damper ends, and cable passes through sleeve, and metal plate right side top and the bottom are fixed respectively connects
It takes over a job lever, motion bar right part is sheathed in fixed cylinder, fixed cylinder fixed connection apparatus inner body wall；It is set inside the fixed cylinder
There is spring, spring right end is fixedly connected on the right side of fixed cylinder, and spring left end abuts motion bar right end, and metal plate uses irony material
It is made；The metal plate right flank middle part is fixedly connected with torch, and torch is electrically connected flexible conductive column, and the fixed company of torch right end
Cutting ferrule is connect, is hollow form, the circumferentially equidistant multiple through-holes of distribution in cutting ferrule surface inside cutting ferrule；It is fixed on the right side of described device body interior
Electromagnet is connected, contact is fixedly connected in the middle part of electromagnet left side, contact and cutting ferrule are located on same axis, and cutting ferrule internal diameter omits
Greater than contact outer diameter, contact is passed through in the middle part of electromagnet, while contact right end connects fusible link, and fusible link right end connection cables melt
Fracture of wire is electrically connected electromagnet.
As a further solution of the present invention: described device ontology right side wall is equipped with temperature sensor, temperature sensor
Signal connects micromotor, micromotor fixed connection apparatus body upper part.
As further scheme of the invention: described device ontology lower end two sides are respectively fixedly connected with mounting base.
As further scheme of the invention: the hinged sealing plate of described device ontology right hand external.
As further scheme of the invention: being fixedly connected with handle in the middle part of the sealing plate.
As further scheme of the invention: the micromotor lower rotational connects driving shaft, and driving shaft passes through dress
It sets ontology and bearing is rotatablely connected therewith, driving shaft lower end is fixedly connected with radiator fan, and device noumenon upper surface is equipped with ventilation hole.
As further scheme of the invention: the mounting base internal screw thread connects fastening bolt.
Compared with prior art, the beneficial effects of the present invention are: the device passes through cutting ferrule and contact current turns ON, electricity
Magnet energizing magnetic attracts metal plate, and Panasonic, which insulate, lower under electromagnet magneticaction after sliding block keeps cutting ferrule and contact to paste
Conduction is closed, fusible link is blown when voltage is excessive, and electromagnet mistake point recession is magnetic, makes card in the case where spring force acts at this time
Set is separated with contact, prevents from forgetting to operate a switch when replacing fusible link from dynamic circuit breaker lock that maloperation is caused to get an electric shock；Temperature sensor detection
Driving shaft is driven to rotate driving radiator fan rotation blowing heat dissipation in turn to micromotor is powered on.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the over-pressure safety device of Internet of Things radiofrequency launcher.
Fig. 2 is the overall schematic of the over-pressure safety device of Internet of Things radiofrequency launcher.
Fig. 3 is the cross-sectional view of insulation sliding block and sliding slot in the over-pressure safety device of Internet of Things radiofrequency launcher.
In figure: 1- device noumenon；2- sleeve；3- stretches conductive column；4- metal plate；5- insulation sliding block；6- sliding slot；7- activity
Bar；8- fixed cylinder；9- spring；10- torch；11- cutting ferrule；12- contact；13- electromagnet；14- fusible link；15- micromotor；
16- driving shaft；17- radiator fan；18- temperature sensor；19- mounting base；20- fastening bolt；21- sealing plate；22- handle.
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. 1~3, in the embodiment of the present invention, a kind of over-pressure safety device of Internet of Things radiofrequency launcher, including dress
Set ontology 1, flexible conductive column 3, insulation sliding block 5, fixed cylinder 8, torch 10, electromagnet 13, micromotor 15 and temperature sensor
18；1 two sides of described device ontology have been respectively fixedly connected with sleeve 2,2 communication apparatus ontology of sleeve, 1 inside and extraneous, device noumenon
1 upper left-hand is equipped with sliding slot 6, and be slidably connected in sliding slot 6 sliding block 5 that insulate, and 1 top of device noumenon is equipped with strip through slot, and sliding slot 6
In strip through slot two sides, and the sliding block 5 that insulate passes through strip through slot, and insulation 5 lower end of sliding block is fixedly connected with metal plate 4, and insulate sliding block 5
It is made for rigid plastics material；It is fixedly connected with flexible conductive column 3 in the middle part of 4 left side of metal plate, sliding in the conductive column 3 that stretches
Connection cables end, cable passes through sleeve 2, and 4 right side top and the bottom of metal plate are respectively fixedly connected with motion bar 7, and motion bar 7 is right
Portion is sheathed in fixed cylinder 8,8 fixed connection apparatus ontology of fixed cylinder, 1 inner wall；Spring 9, spring 9 are equipped with inside the fixed cylinder 8
Right end is fixedly connected with 8 right side of fixed cylinder, and 9 left end of spring abuts 7 right end of motion bar, and metal plate 4 is made using irony material, when
7 right end of motion bar is located at 8 left end of fixed cylinder when spring 9 descends in the raw, i.e. insulation sliding block 5 is in 6 left end of sliding slot；It is described
4 right flank middle part of metal plate is fixedly connected with torch 10, and torch 10 is electrically connected flexible conductive column 3, and the fixed company of 10 right end of torch
Cutting ferrule 11 is connect, is hollow form, the circumferentially equidistant multiple through-holes of distribution in 11 surface of cutting ferrule inside cutting ferrule 11.
1 inner right side of described device ontology is fixedly connected with electromagnet 13, is fixedly connected with contact in the middle part of 13 left side of electromagnet
12, contact 12 and cutting ferrule 11 are located on same axis, and 11 internal diameter of cutting ferrule is slightly larger than 12 outer diameter of contact, and contact 12 passes through electromagnet
13 middle parts, while 12 right end of contact connects fusible link 14,14 right end connection cables of fusible link, fusible link 14 is electrically connected electromagnet
13, when pulling insulation sliding block 5 to drive metal plate 4 to move right with cutting ferrule 11 when 6 move right along the chute, motion bar 7 exists at this time
It is moved to right under external force and compresses spring 9, the current turns ON when cutting ferrule 11 is contacted with contact 12,13 energizing magnetic of electromagnet
Attract metal plate 4, keep cutting ferrule 11 to be bonded conduction with contact 12 down under 13 magneticaction of electromagnet after Panasonic's insulation sliding block 5,
When voltage is excessive, fusible link 14 is blown, and electromagnet 13 loses point recession magnetism, makes cutting ferrule under the effect of 9 elastic force of spring at this time
11 separate with contact 12, prevent from forgetting to operate a switch when replacing fusible link 14 from dynamic circuit breaker lock that maloperation is caused to get an electric shock.
1 right side wall of described device ontology is equipped with temperature sensor 18, and 18 signal of temperature sensor connects micromotor 15,
15 fixed connection apparatus ontology of micromotor, 1 top, and 15 lower rotational of micromotor connects driving shaft 16, driving shaft 16 passes through
Device noumenon 1 and therewith bearing are rotatablely connected, and 16 lower end of driving shaft is fixedly connected with radiator fan 17, and 1 upper surface of device noumenon is set
There is ventilation hole, when temperature sensor 18 detects that being powered on micromotor 15 drives driving shaft 16 to rotate
And then drive the rotation blowing heat dissipation of radiator fan 17；1 lower end two sides of described device ontology are respectively fixedly connected with mounting base 19, installation
19 internal screw threads of seat connect fastening bolt 20, and the hinged sealing plate 21 of 1 right hand external of device noumenon, are fixedly connected in the middle part of sealing plate 21
Handle 22 is sealed fusible link 14 by sealing plate 21, and sealing plate 21 can be opened easy maintenance and replacement and melted by pull handle 22
Fracture of wire 14.
The working principle of the invention is: when spring 9 descends in the raw, 7 right end of motion bar is located at 8 left end of fixed cylinder,
That is insulation sliding block 5 is in 6 left end of sliding slot, when pulling insulation sliding block 5 drives metal plate 4 and cutting ferrule 11 when 6 move right along the chute
It moves right, motion bar 7 moves to right under external force at this time compresses spring 9, and when cutting ferrule 11 is contacted with contact 12, electric current is connect
Logical, 13 energizing magnetic of electromagnet attracts metal plate 4, the lower holding under 13 magneticaction of electromagnet after Panasonic's insulation sliding block 5
Cutting ferrule 11 is bonded conduction with contact 12, and when voltage is excessive, fusible link 14 is blown, and electromagnet 13 loses point recession magnetism, exists at this time
So that cutting ferrule 11 is separated with contact 12 under the effect of 9 elastic force of spring, prevent from forgetting to operate a switch when replacing fusible link 14 making from dynamic circuit breaker lock
It gets an electric shock at maloperation, when temperature sensor 18 detects that being powered on micromotor 15 drives driving shaft 16
It rotates and then drives the rotation blowing heat dissipation of radiator fan 17；1 lower end two sides of described device ontology are respectively fixedly connected with mounting base 19,
19 internal screw thread of mounting base connects fastening bolt 20, and the hinged sealing plate 21 of 1 right hand external of device noumenon, fixes in the middle part of sealing plate 21
Connect handle 22, fusible link 14 is sealed by sealing plate 21, pull handle 22 can by sealing plate 21 open facilitate maintenance and more
Change fusible link 14.
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 (6)
1. a kind of over-pressure safety device of Internet of Things radiofrequency launcher, including device noumenon (1), flexible conductive column (3), insulation cunning
Block (5), fixed cylinder (8), torch (10), electromagnet (13), micromotor (15) and temperature sensor (18), which is characterized in that
Described device ontology (1) two sides have been respectively fixedly connected with sleeve (2), and sleeve (2) communication apparatus ontology (1) is internal and extraneous, dress
Ontology (1) upper left-hand is set equipped with sliding slot (6), interior insulate sliding block (5) that are slidably connected of sliding slot (6), device noumenon (1) top is equipped with
Strip through slot, sliding slot (6) are located at strip through slot two sides, and insulate sliding block (5) across strip through slot, and insulation sliding block (5) lower end is solid
Surely metal plate (4) are connected, insulation sliding block (5) is that rigid plastics material is made；It is fixedly connected in the middle part of metal plate (4) left side
Flexible conductive column (3), be slidably connected cable and damper ends in flexible conductive column (3), and cable passes through sleeve (2), and on the right side of metal plate (4)
Face top and the bottom are respectively fixedly connected with motion bar (7), and motion bar (7) right part is sheathed in fixed cylinder (8), and fixed cylinder (8) is fixed to be connected
Connection device ontology (1) inner wall；Spring (9) are equipped with inside the fixed cylinder (8), spring (9) right end is fixedly connected with fixed cylinder (8) right side
Side, spring (9) left end abuts motion bar (7) right end, and metal plate (4) is made using irony material；On the right side of the metal plate (4)
Middle face is fixedly connected torch (10), and torch (10) is electrically connected flexible conductive column (3), and torch (10) right end is fixedly connected with card
It covers (11), is hollow form, the circumferentially equidistant multiple through-holes of distribution in cutting ferrule (11) surface inside cutting ferrule (11)；Described device ontology (1)
Inner right side is fixedly connected electromagnet (13), is fixedly connected contact (12) in the middle part of electromagnet (13) left side, contact (12) and card
Set (11) is located on same axis, and cutting ferrule (11) internal diameter is slightly larger than contact (12) outer diameter, and contact (12) passes through electromagnet (13)
Middle part, while contact (12) right end connection fusible link (14), fusible link (14) right end connection cables, fusible link (14) are electrically connected
Electromagnet (13)；
Wherein, the state of the spring (9) is divided into the following two kinds, one is insulate sliding block under playing the bed mat made of woven strips of bamboo (9) in the raw
(5) it is in sliding slot (6) left end, cutting ferrule (11) is not contacted with contact (12), is in off-position；The second is spring (9) is in pressure
Under contracting state, cutting ferrule (11) is contacted with contact (12), and electromagnet (13), which is powered, attracts metal plate (4), is in conduction state；Its
In, conduction state is divided into following two situation again, first is that when normal voltage, fusible link (14) works normally situation, keeps conductive；
Second is that when excessive voltage, fusible link (14) is blown situation, and electromagnet (13) power loss subsides magnetic, cutting ferrule (11) and contact (12)
It is separated under spring (9) effect, keeps open circuit.
2. a kind of over-pressure safety device of Internet of Things radiofrequency launcher according to claim 1, which is characterized in that the dress
Ontology (1) right side wall is set equipped with temperature sensor (18), temperature sensor (18) signal connects micromotor (15), micro electric
Machine (15) fixed connection apparatus ontology (1) top；Micromotor (15) lower rotational connects driving shaft (16), driving shaft
(16) it passes through device noumenon (1) and bearing is rotatablely connected therewith, driving shaft (16) lower end is fixedly connected with radiator fan (17), device
Ontology (1) upper surface is equipped with ventilation hole.
3. a kind of over-pressure safety device of Internet of Things radiofrequency launcher according to claim 1, which is characterized in that the dress
It sets ontology (1) lower end two sides and is respectively fixedly connected with mounting base (19).
4. a kind of over-pressure safety device of Internet of Things radiofrequency launcher according to claim 1, which is characterized in that the dress
Set the hinged sealing plate of ontology (1) right hand external (21).
5. a kind of over-pressure safety device of Internet of Things radiofrequency launcher according to claim 4, which is characterized in that described close
Handle (22) are fixedly connected in the middle part of sealing plate (21).
6. a kind of over-pressure safety device of Internet of Things radiofrequency launcher according to claim 3, which is characterized in that the peace
Fill seat (19) internal screw thread connection fastening bolt (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810629374.8A CN108683154B (en) | 2018-06-19 | 2018-06-19 | A kind of over-pressure safety device of Internet of Things radiofrequency launcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810629374.8A CN108683154B (en) | 2018-06-19 | 2018-06-19 | A kind of over-pressure safety device of Internet of Things radiofrequency launcher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108683154A CN108683154A (en) | 2018-10-19 |
| CN108683154B true CN108683154B (en) | 2019-08-23 |
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ID=63811340
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810629374.8A Expired - Fee Related CN108683154B (en) | 2018-06-19 | 2018-06-19 | A kind of over-pressure safety device of Internet of Things radiofrequency launcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108683154B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110428987B (en) * | 2019-07-09 | 2021-03-05 | 浙江海洋大学 | Safety protection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2731804Y (en) * | 2004-06-24 | 2005-10-05 | 广东天乐通信设备有限公司 | Safety device of general wiring rack overvoltage protection |
| CN101479898A (en) * | 2006-07-06 | 2009-07-08 | 奥宝贝特曼股份有限两合公司 | Device for protecting electrical equipment against overvoltages |
| CN103518240A (en) * | 2011-02-18 | 2014-01-15 | 德恩及索恩两合股份有限公司 | Overvoltage protection device comprising at least one surge arrester |
| CN104466898A (en) * | 2013-09-24 | 2015-03-25 | 成都新方洲信息技术有限公司 | Overvoltage protective device for internet-of-things radio frequency emitter |
| CN205335836U (en) * | 2016-01-13 | 2016-06-22 | 北京兴天通电讯科技有限公司 | A overvoltage protector for photovoltaic equipment |
| CN205753390U (en) * | 2016-06-28 | 2016-11-30 | 诺朗德（北京）科技有限公司 | A kind of piezoresistor type surge protection device |
-
2018
- 2018-06-19 CN CN201810629374.8A patent/CN108683154B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2731804Y (en) * | 2004-06-24 | 2005-10-05 | 广东天乐通信设备有限公司 | Safety device of general wiring rack overvoltage protection |
| CN101479898A (en) * | 2006-07-06 | 2009-07-08 | 奥宝贝特曼股份有限两合公司 | Device for protecting electrical equipment against overvoltages |
| CN103518240A (en) * | 2011-02-18 | 2014-01-15 | 德恩及索恩两合股份有限公司 | Overvoltage protection device comprising at least one surge arrester |
| CN104466898A (en) * | 2013-09-24 | 2015-03-25 | 成都新方洲信息技术有限公司 | Overvoltage protective device for internet-of-things radio frequency emitter |
| CN205335836U (en) * | 2016-01-13 | 2016-06-22 | 北京兴天通电讯科技有限公司 | A overvoltage protector for photovoltaic equipment |
| CN205753390U (en) * | 2016-06-28 | 2016-11-30 | 诺朗德（北京）科技有限公司 | A kind of piezoresistor type surge protection device |
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| Publication number | Publication date |
|---|---|
| CN108683154A (en) | 2018-10-19 |
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Granted publication date: 20190823 Termination date: 20200619 |