CN206685912U - Online energy taking device for transmission line of electricity - Google Patents
Online energy taking device for transmission line of electricity Download PDFInfo
- Publication number
- CN206685912U CN206685912U CN201720466905.7U CN201720466905U CN206685912U CN 206685912 U CN206685912 U CN 206685912U CN 201720466905 U CN201720466905 U CN 201720466905U CN 206685912 U CN206685912 U CN 206685912U
- Authority
- CN
- China
- Prior art keywords
- electricity
- ground wire
- transmission line
- lightning protection
- taking device
- 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.)
- Active
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides the online energy taking device for transmission line of electricity, belongs to field of power, and online energy taking device includes：The lightning protection decoupler being connected on transmission line of electricity, the input of lightning protection decoupler are connected by joint with steel tower, ground wire, and the output end of lightning protection decoupler is connected with the input of transformer；The output end of transformer is connected through lightning protection circuit with rectifier filter, and the output end of rectifier filter is connected with DC DC modules, and the output end of DC DC modules is connected through electrochemical capacitor with monitoring device.Being taken by using the on-line monitoring system of " ground wire takes energy " can scheme.The advantages of program, is to re-use the original qualitative lightning conducter induced voltage for transmission losses, not only save a large amount of system maintenance costs, the job stability and service life for making on-line monitoring kind equipment greatly prolong, and device is easy for installation, wiring is simple, disclosure satisfy that requirement of all kinds of on-line monitoring systems to reliable power supply.
Description
Technical field
The utility model belongs to field of power, the more particularly to online energy taking device for transmission line of electricity.
Background technology
Transmission line of electricity on-line detecting system be by wireless public network communication transfer mode, long-distance video to transmission line of electricity,
The system that the line conditions such as microclimate, shaft tower inclination, burglar alarm, icing are monitored and are uploaded to Surveillance center, mainly by
System main website and various monitoring devices composition.
Powering mode is almost " photovoltaic panel+battery " used by current power transmission circuit on-Line Monitor Device.The confession
Energy mode efficiently solves the power issue of transmission line online monitoring system from far-off regions, but the acquisition of luminous energy is by the shadow of environment
Sound is larger, and under the weather of the illumination such as sleet, dense fog deficiency, electric energy caused by photovoltaic panel can not meet equipment normal work need
Will.Even in fine day, the time that photovoltaic panel exports electric energy at full capacity is also no more than 5h.Therefore, it has to using Large Copacity
Battery, to ensure under the weather of the illumination such as sleet, dense fog deficiency, work energy is provided for monitoring device by battery.
From the point of view of the lead-acid accumulator and cadmium-nickel accumulator that are generally used from transmission line of electricity on-line monitoring equipment, what battery used is averaged
Life-span was less than 1 year.
But because the acquisition of luminous energy is protected from environmental larger, under the weather of the illumination such as sleet, dense fog deficiency, it can influence
Equipment normal operation.
Utility model content
In order to solve shortcoming and defect present in prior art, the utility model is provided for ensureing monitoring device just
The online energy taking device often run.
In order to reach above-mentioned technical purpose, the utility model provides the online energy taking device for transmission line of electricity, described
Online energy taking device is arranged on transmission line of electricity, for being powered to the monitoring device on transmission line of electricity, it is described
Line energy taking device, including：
The lightning protection decoupler being connected on transmission line of electricity, the input of the lightning protection decoupler by joint and steel tower,
Line is connected, and the output end of the lightning protection decoupler is connected with the input of transformer；
The output end of the transformer is connected through lightning protection circuit with rectifier filter, and the output end of the rectifier filter connects
DC-DC module is connected to, the output end of the DC-DC module is connected through electrochemical capacitor with the monitoring device.
Optionally, in the online energy taking device, the power supply management circuit being connected with the rectifier filter is additionally provided with,
Lithium battery is connected with the output end of the power supply management circuit.
Optionally, the first tension force tower and the second tension force tower are provided with the transmission line of electricity, in the first tension force tower and
The first ground wire and the second ground wire are connected between the second tension force tower, is set between first ground wire and second ground wire
There is the tangent tower of predetermined number, insulator is equipped between first ground wire, second ground wire and the tangent tower.
Optionally, one end of input is connected on first ground wire in the lightning protection decoupler, and the other end is connected to
On the tangent tower of N roads, and it is connected by shorting stub with second ground wire, the both ends of the N roads tangent tower are equipped with insulation
Son；
Wherein, N span is positive integer.
Optionally, one end of input is connected on first ground wire in the lightning protection decoupler, and the other end is connected to
On the tangent tower of N roads, insulator is provided between the N roads tangent tower and first ground wire；
Wherein, N span is positive integer.
Optionally, one end of input is connected on first ground wire in the lightning protection decoupler, and the other end is connected to
On first tension force tower, and it is connected by shorting stub with second ground wire, the both ends of the N roads tangent tower are not provided with insulating
Son；
Wherein, N span is positive integer.
Optionally, one end of input is connected on first ground wire in the lightning protection decoupler, and the other end is connected to
On first tension force tower, the both ends of the N roads tangent tower are not provided with insulator；
Wherein, N span is positive integer.
Optionally, the online energy taking device include being used for accommodating, lightning protection decoupler, transformer, lightning protection circuit, rectification filter
Ripple device, DC-DC module, the shell body of electrochemical capacitor, the shell body are made up of epoxy resin.
Optionally, in the online energy taking device, except the lightning protection decoupler, it is additionally provided with including adjustable clearance end
Three-level lightning protection device including son, lightning protection for power supply.
Optionally, in the online energy taking device, it is additionally provided with the communication day of the output end connection of the DC-DC module
Line.
The beneficial effect that technical scheme provided by the utility model is brought is：
Being taken by using the on-line monitoring system of " ground wire takes energy " can scheme.The advantages of program, is
The lightning conducter induced voltage of transmission losses re-uses, and not only saves a large amount of system maintenance costs, sets on-line monitoring class
Standby job stability and service life greatly prolongs, and device is easy for installation, and wiring is simple, disclosure satisfy that all kinds of on-line monitorings
Requirement of the system to reliable power supply.
Brief description of the drawings
It is required in being described below to embodiment to use in order to illustrate more clearly of the technical solution of the utility model
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of the online energy taking device provided by the utility model for transmission line of electricity；
Fig. 2 is the structural representation one of online energy taking device provided by the utility model；
Fig. 3 is the structural representation two of online energy taking device provided by the utility model；
Fig. 4 is the structural representation three of online energy taking device provided by the utility model；
Fig. 5 is the structural representation four of online energy taking device provided by the utility model.
Embodiment
To make structure and advantage of the present utility model clearer, structure of the present utility model is made below in conjunction with accompanying drawing
It is further described through.
Embodiment one
In order to reach above-mentioned technical purpose, the utility model provides the online energy taking device for transmission line of electricity, described
Online energy taking device is arranged on transmission line of electricity, for being powered to the monitoring device on transmission line of electricity, it is described
Line energy taking device, as shown in figure 1, including：
The lightning protection decoupler being connected on transmission line of electricity, the input of the lightning protection decoupler by joint and steel tower,
Line is connected, and the output end of the lightning protection decoupler is connected with the input of transformer；
The output end of the transformer is connected through lightning protection circuit with rectifier filter, and the output end of the rectifier filter connects
DC-DC module is connected to, the output end of the DC-DC module is connected through electrochemical capacitor with the monitoring device.
In force, " photovoltaic panel+battery " this kind of power supply is used in order to solve on-Line Monitor Device in the prior art
The defects of pattern is present, the on-line monitoring system that the utility model embodiment proposes use " ground wire takes energy " take energy scheme.Should
The advantages of scheme, is to re-use the original qualitative lightning conducter induced voltage for transmission losses, not only saves a large amount of systems
System maintenance cost, the job stability and service life for making on-line monitoring kind equipment greatly prolong, and device is easy for installation, wiring
Simply, it disclosure satisfy that requirement of all kinds of on-line monitoring systems to reliable power supply.
According to Maxwell's principle, transmission line of electricity produces alternating magnetic field when conveying load around it, and the alternating magnetic field is cut
Cut the metal loop being made up of lightning protection ground wire and steel tower and become generation induced electromotive force, induced-current is produced if loop closes.
The AC magnetic field of power transmission line can cut the plane that ground wire and shaft tower form by space, so as to be produced in earth wire of power transmission line plane
Raw electric current.If it can rationally utilize this ground wire circulation, it is possible to obtain the energy that enough on-line monitoring device for transmission line use
Amount.
Based on above-mentioned principle, the online energy taking device of the utility model embodiment offer, including：Whole circuit includes lightning protection
Decoupler, etc. than transformer, rectifying and wave-filtering, lightning protection overvoltage protection, DC-DC and Charge Management.The ground wire of high voltage transmission line is through anti-
After thunder decoupler, inflow transformer, transformer obtains AC energy, and the output of transformer flows into rectification after lightning-protection module circuit
Wave filter, DC-DC module conversion is output to after the interference of rectifier filter filtering common mode and DM EMI, then is filtered through electrochemical capacitor
The clutter of direct current is further filtered out, is finally connected with on-line monitoring equipment, wherein overvoltage crowbar is to suppress to input
Terminal voltage it is too high and cause below device burn.Circuit design frame diagram is as shown in Figure 1.
Power transmission line can all have certain energy loss in energy transport on ground line loop.And ground wire energy taking device
Effective utilization not only is carried out to this ground wire induced electricity for being treated as line loss always using undesirable mutual electromagnetic inductance technology, more
On-line monitoring on transmission line of electricity provides a safe and reliable power supply, and the installation for transmission line of electricity on-line monitoring equipment provides
Solid backing is created in strong guarantee, the construction to intelligent grid.
Optionally, in the online energy taking device, the power supply management circuit being connected with the rectifier filter is additionally provided with,
Lithium battery is connected with the output end of the power supply management circuit.The work of electricity support certain time is still available for by built-in lithium battery
Make.
Optionally, the first tension force tower and the second tension force tower are provided with the transmission line of electricity, in the first tension force tower and
The first ground wire and the second ground wire are connected between the second tension force tower, is set between first ground wire and second ground wire
There is the tangent tower of predetermined number, insulator is equipped between first ground wire, second ground wire and the tangent tower.
In force, because main primary end has larger impedance, electricity is produced in power input port when the current flows
U is pressed, therefore according to Ohm's law：P=U × I (U is power port voltage, and I is the electric current for flowing through main primary) can be with acquisition
Power.But main primary end can not possibly be directly sealed in practical engineering application in earth cord network, therefore actually should
In we be utilize with segmented ground aerial earth wire network itself the characteristics of, do not changing the feelings of original ground wire framework
Under condition, that realizes power taking equipment seals in operation.
Specifically, the position installed according to the online energy taking device is different, following four kinds of situations can be divided into and be introduced.
Situation one
As shown in Fig. 2 one end of input is connected on the first ground wire in lightning protection decoupler, the other end is connected to N roads
On tangent tower, and it is connected by shorting stub with the second ground wire, the both ends of N roads tangent tower are equipped with insulator；
Wherein, N span is positive integer.
In force, if our electrical equipment be arranged on Fig. 2 shown in " on tangent tower 2 ", ground wire power taking power supply
It is also required to be arranged on " on tangent tower 2 ".In segmented ground section, the earth point of ground wire is " on tension force tower 1 ", and on other towers
Aerial be attached by the insulator chain in belt discharge gap between lightning protection ground wire and steel tower, therefore we can be power supply system
The end of input one of system be connected on " on ground wire 1 ", the other end and the " short circuit of ground wire 2 ", then by " ground wire 1 ", " tangent tower 2 ", " ground wire
2 " and " tension force tower 1 " form a close access, induced-current this close access flow, can be not according to aforementioned principles
Change and supply unit is sealed in earth cord network under conditions of original ground wire, form tangent tower and double earth wire is connect using segmentation
The connection mode on ground.
Situation two
As shown in figure 3, one end of input is connected on the first ground wire in lightning protection decoupler, the other end is connected to N roads
On tangent tower, insulator is provided between N roads tangent tower and the first ground wire；
Wherein, N span is positive integer.
In force, if revocation shorting stub, such that closed-loop path becomes serve as reasons " ground wire 1 ", " tangent tower N ", "
Line 2 " and " tension force tower 1 " forms a close access, and induced-current flows in this close access, can be according to aforementioned principles
Do not change and supply unit is sealed in earth cord network under conditions of original ground wire, form tangent tower and single ground wire is connect using segmentation
The connection mode on ground.
Situation three
As shown in figure 4, one end of input is connected on the first ground wire in lightning protection decoupler, the other end is connected to first
On power tower, and it is connected by shorting stub with the second ground wire, the both ends of N roads tangent tower are not provided with insulator；
Wherein, N span is positive integer.
In force, relative to situation one, shorting stub can also be moved at the first tension force tower, so then formed by "
Line 1 ", " the first tension force tower ", " ground wire 2 " and " tangent tower N " form, induced-current this close access flow, according to foregoing
Principle can seal in supply unit in earth cord network under conditions of original ground wire is not changed, and form tension force tower and double earth wire
Use the connection mode of segmented ground.
Situation four
As shown in figure 5, one end of input is connected on the first ground wire in lightning protection decoupler, the other end is connected to first
On power tower, the both ends of N roads tangent tower are not provided with insulator；
Wherein, N span is positive integer.
In force, relative to situation three, shorting stub can also be removed, so then form by " ground wire 1 ", " first
Power tower ", " ground wire 2 " and " tangent tower N " form, induced-current this close access flow, can be not according to aforementioned principles
Change and supply unit is sealed in earth cord network under conditions of original ground wire, form tension force tower and single ground wire uses segmented ground
Connection mode.
Optionally, the online energy taking device include being used for accommodating, lightning protection decoupler, transformer, lightning protection circuit, rectification filter
Ripple device, DC-DC module, the shell body of electrochemical capacitor, the shell body are made up of epoxy resin.
In force, this material of epoxy resin has easy processing, sturdy and durable, good insulation preformance, safe spy
Point, and it is cheap, will not get rusty, the aluminium being commonly used relative to the field has abandoned that its is yielding, and difficulty of processing is big
The defects of, due to needing to fix many electric elements on panel, it is necessary to take the measure of being dielectrically separated to electric elements, use aluminium meeting
Cause processing assembling difficulty increase so that cost increase.
Optionally, in the online energy taking device, except the lightning protection decoupler, it is additionally provided with including adjustable clearance end
Three-level lightning protection device including son, lightning protection for power supply.
In force, adjustable clearance terminal：The main function of the terminal be thunderbolt when by energy be released to the earth, principle with
The discharging gap of transmission line of electricity is consistent, therefore the spacing of the terminal should be maintained at 8~11mm, should adjust the gap of terminal when safeguarding
To 8~11mm.
Optionally, in the online energy taking device, it is additionally provided with the communication day of the output end connection of the DC-DC module
Line.
For the scalability of product, emphasis is taken to energy electric supply installation to the ground wire further " wisdom ", makes lightning conducter
Take not only can provide regulated power for equipment on transmission line of electricity, moreover it is possible to provide the Monitoring Data of lightning conducter, realize lightning conducter
Automatic monitoring and alarm, so as to lift the integrated level of whole transmission line faultlocating system, advocated energetically now to national
Intelligent grid strides forward.Whole system is communicated using GSM data, and user can send the commands to obtain whole system by SMS
The running status of system.
The utility model provides the online energy taking device for transmission line of electricity, and online energy taking device is arranged on transmission line of electricity
On, for being powered to the monitoring device on transmission line of electricity, online energy taking device includes：It is connected on transmission line of electricity
Lightning protection decoupler, the input of lightning protection decoupler is connected by joint with steel tower, ground wire, the output end of lightning protection decoupler and change
The input of depressor is connected；The output end of transformer is connected through lightning protection circuit with rectifier filter, the output end of rectifier filter
DC-DC module is connected with, the output end of DC-DC module is connected through electrochemical capacitor with monitoring device.By using " ground wire takes energy "
On-line monitoring system take can scheme.The advantages of program, is the original qualitative lightning conducter induced electricity ballast for transmission losses
Newly use, not only save a large amount of system maintenance costs, make the job stability of on-line monitoring kind equipment and service life big
It is big to extend, and device is easy for installation, wiring is simple, disclosure satisfy that requirement of all kinds of on-line monitoring systems to reliable power supply.
Each sequence number in above-described embodiment is for illustration only, does not represent the elder generation during the assembling or use of each part
Order afterwards.
Embodiment of the present utility model is the foregoing is only, it is all in the utility model not to limit the utility model
Spirit and principle within, any modification, equivalent substitution and improvements made etc., should be included in protection model of the present utility model
Within enclosing.
Claims (10)
1. for the online energy taking device of transmission line of electricity, the online energy taking device is arranged on transmission line of electricity, for installation
Monitoring device on transmission line of electricity is powered, it is characterised in that the online energy taking device, including：
The lightning protection decoupler being connected on transmission line of electricity, the input of the lightning protection decoupler pass through joint and steel tower, ground wire phase
Even, the output end of the lightning protection decoupler is connected with the input of transformer；
The output end of the transformer is connected through lightning protection circuit with rectifier filter, and the output end of the rectifier filter is connected with
DC-DC module, the output end of the DC-DC module are connected through electrochemical capacitor with the monitoring device.
2. the online energy taking device according to claim 1 for transmission line of electricity, it is characterised in that take energy online described
In device, the power supply management circuit being connected with the rectifier filter is additionally provided with, is connected in the output end of the power supply management circuit
It is connected to lithium battery.
3. the online energy taking device according to claim 1 for transmission line of electricity, it is characterised in that in the transmission line of electricity
In be provided with the first tension force tower and the second tension force tower, be connected with the first ground between the first tension force tower and the second tension force tower
Line and the second ground wire, the tangent tower of predetermined number is provided between first ground wire and second ground wire, described first
Insulator is equipped between ground wire, second ground wire and the tangent tower.
4. the online energy taking device according to claim 3 for transmission line of electricity, it is characterised in that：
One end of input is connected on first ground wire in the lightning protection decoupler, and the other end is connected to N roads tangent tower
On, and be connected by shorting stub with second ground wire, the both ends of the N roads tangent tower are equipped with insulator；
Wherein, N span is positive integer.
5. the online energy taking device according to claim 3 for transmission line of electricity, it is characterised in that：
One end of input is connected on first ground wire in the lightning protection decoupler, and the other end is connected to N roads tangent tower
On, insulator is provided between the N roads tangent tower and first ground wire；
Wherein, N span is positive integer.
6. the online energy taking device according to claim 3 for transmission line of electricity, it is characterised in that：
One end of input is connected on first ground wire in the lightning protection decoupler, and the other end is connected to the first tension force tower
On, and be connected by shorting stub with second ground wire, the both ends of the N roads tangent tower are not provided with insulator；
Wherein, N span is positive integer.
7. the online energy taking device according to claim 3 for transmission line of electricity, it is characterised in that：
One end of input is connected on first ground wire in the lightning protection decoupler, and the other end is connected to the first tension force tower
On, the both ends of the N roads tangent tower are not provided with insulator；
Wherein, N span is positive integer.
8. the online energy taking device for transmission line of electricity according to any one of claim 1 to 7, it is characterised in that：
The online energy taking device is included for accommodating, lightning protection decoupler, transformer, lightning protection circuit, rectifier filter, DC-DC
The shell body of module, electrochemical capacitor, the shell body are made up of epoxy resin.
9. the online energy taking device for transmission line of electricity according to any one of claim 1 to 7, it is characterised in that in institute
State in online energy taking device, except the lightning protection decoupler, three be additionally provided with including adjustable clearance terminal, lightning protection for power supply
Level lightning protection device.
10. the online energy taking device for transmission line of electricity according to any one of claim 1 to 7, it is characterised in that in institute
State in online energy taking device, be additionally provided with the communication antenna of the output end connection of the DC-DC module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720466905.7U CN206685912U (en) | 2017-04-28 | 2017-04-28 | Online energy taking device for transmission line of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720466905.7U CN206685912U (en) | 2017-04-28 | 2017-04-28 | Online energy taking device for transmission line of electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206685912U true CN206685912U (en) | 2017-11-28 |
Family
ID=60406756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720466905.7U Active CN206685912U (en) | 2017-04-28 | 2017-04-28 | Online energy taking device for transmission line of electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206685912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086610A (en) * | 2017-04-28 | 2017-08-22 | 国网浙江桐庐县供电公司 | Online energy taking device for transmission line of electricity |
-
2017
- 2017-04-28 CN CN201720466905.7U patent/CN206685912U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086610A (en) * | 2017-04-28 | 2017-08-22 | 国网浙江桐庐县供电公司 | Online energy taking device for transmission line of electricity |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105914868B (en) | Super capacitor energy-storage uninterruptible power supply and its method of supplying power to based on current transformer | |
| CN102368631B (en) | Efficient and reliable power supply architecture of data center electronic equipment | |
| CN107086610A (en) | Online energy taking device for transmission line of electricity | |
| CN2788273Y (en) | Remote monitoring terminal for high-voltage power line | |
| CN105322665A (en) | Resonant wireless power supply system for high-voltage power transmission line | |
| CN104979853B (en) | Power transmission line sectioned insulating overhead ground wire multi-point power accessing system based on electromagnetic induction | |
| CN206878552U (en) | It is a kind of that there is the end power-supply system for exchanging uninterrupted output function | |
| CN103117587A (en) | Supercapacitor power supply device applicable to ring main units | |
| CN103267889A (en) | Novel intelligent photovoltaic confluence device | |
| CN203590054U (en) | Embedded series communication power supply system | |
| CN206685912U (en) | Online energy taking device for transmission line of electricity | |
| CN204721106U (en) | Based on the power transmission line overhead ground wire electromagnetism energy taking device of super capacitor | |
| CN106887898A (en) | A kind of three-phase high-voltage transmission line of electricity monitors equipment energy supply method and system on-line | |
| CN203481926U (en) | Power supply device for on-line monitoring unit on power transmission line | |
| CN211184586U (en) | Outdoor ETC rack | |
| CN202602351U (en) | Time sharing power supply energy storage system for residence | |
| CN203014501U (en) | Wireless data acquisition apparatus having self-powered function | |
| CN201674271U (en) | Special electricity saving device for injection molding oil pump motor | |
| CN205753568U (en) | A kind of elevator five side's intercom system back-up source using ultracapacitor | |
| CN108667140A (en) | Automatic monitoring systems and design method along flow domain based on direct-current remote feeding power | |
| CN209462075U (en) | The Anti-Typhoon photoelectric integral emergency power supply of encircling type | |
| CN207219127U (en) | Remote monitoring street lamp Intelligent power saving system | |
| CN206331077U (en) | A kind of discharge current on-line monitoring platform of use solar panels and battery | |
| CN103199711A (en) | Novel high-power direct current communication power supply | |
| CN103199611B (en) | A kind of power circuit of the network equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Han Lin Inventor after: Liu Junwen Inventor after: Cheng Zengming Inventor after: Bao Long Inventor after: Geng Decheng Inventor after: Dai Minjie Inventor after: Wang Fei Inventor after: Hong Jie Inventor after: Chen Xiaohong Inventor after: Fan Hongxing Inventor after: Xiao Gaoyuan Inventor after: Fan Zhiwen Inventor after: Wang Yang Inventor after: Ni Xiaolu Inventor after: Xu Feng Inventor after: Xu Qiang Inventor after: Yu Fengming Inventor before: Han Lin Inventor before: Liu Junwen Inventor before: Cheng Zengming Inventor before: Bao Long Inventor before: Geng Decheng Inventor before: Dai Minjie Inventor before: Wang Fei Inventor before: Hong Jie Inventor before: Fan Hongxing Inventor before: Xiao Gaoyuan Inventor before: Fan Zhiwen Inventor before: Wang Yang Inventor before: Ni Xiaolu Inventor before: Xu Feng Inventor before: Xu Qiang Inventor before: Yu Fengming |