CN104393823B - A kind of solar panel system with dismountable driving engaging zones - Google Patents
A kind of solar panel system with dismountable driving engaging zones Download PDFInfo
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- CN104393823B CN104393823B CN201410551729.8A CN201410551729A CN104393823B CN 104393823 B CN104393823 B CN 104393823B CN 201410551729 A CN201410551729 A CN 201410551729A CN 104393823 B CN104393823 B CN 104393823B
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- contiguous block
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- thread spindle
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- 238000012423 maintenance Methods 0.000 claims description 18
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 210000001138 tear Anatomy 0.000 claims description 3
- 230000004913 activation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 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
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
A kind of solar panel system with dismountable driving engaging zones, comprise framework body (1), multiple solar panel (3) and cell panel pivot driver device (4), wherein, described framework body (1) comprises column (2), described multiple solar panel (3) self is pivoted on the trunnion axis (22) of described column (2) separatedly, and trunnion axis (22) is orthogonal with described column (2) and be fixedly connected with.
Description
Technical field
Solar panel system of the present invention, especially a kind of maintenance of solar panel system of overhead multilayer.
Background technology
The fundamental characteristics of solar cell has polarity, the performance parameter of solar cell, voltage-current characteristic three fundamental characteristics of solar-electricity environment-friendly battery of solar cell.
Solar energy electric field uses a large amount of cell panels, in order to the area that saves space, cell panel may be needed to be arranged on elevated structure, adopts multi-layer cell plate to carry out conversion generating.Or, on some high buildings, solar panel can be installed and carry out environment protection-type energy resource supply.
Summary of the invention
The present invention aims to provide a kind of solar panel system utilizing cog belt to drive, and it is convenient to when certain cell panel breaks down safeguard.
According to aspects of the present invention, a kind of solar panel system with dismountable driving engaging zones, comprise framework body, multiple solar panel and cell panel pivot driver device, wherein, described framework body comprises column, described multiple solar panel self is pivoted on the trunnion axis of described column separatedly, and trunnion axis is orthogonal with described column and be fixedly connected with;
Described cell panel pivot driver device is used for carrying out pivot driver to selected driven cell panel, described cell panel pivot driver device comprises: telescopic drive motor, contiguous block, retractor device, base, motor side screw rod, contiguous block side first screw rod and contiguous block side second screw rod, described telescopic drive motor is for driving the flexible of described retractor device, described telescopic drive motor to be connected with described retractor device with between described retractor device at described telescopic drive motor by described contiguous block, the first end threaded engagement of the electric machine casing of described motor side screw rod and described telescopic drive motor, contiguous block side first screw rod and contiguous block side second screw rod and described contiguous block threaded engagement, screw drive is provided with in base, described screw drive comprises the first cog belt belt wheel for drive motors side screw rod, for driving the second cog belt belt wheel of contiguous block side first screw rod and for driving the 3rd cog belt belt wheel of contiguous block side second screw rod, described first cog belt belt wheel, second cog belt belt wheel and the 3rd cog belt pulley diameters identical, and connected by ring-type cog belt, described ring-type cog belt also engages with driving pulley, described driving pulley connects with screw drive motor power,
Described retractor device comprises outer sleeve, expansion link and thread spindle, one end of described outer sleeve is fixedly connected with contiguous block, the other end has the first internal spline, described expansion link is divided into body shaft portion and end touch part, described body shaft portion is provided with the first external splines coordinated with described first internal spline, the axis part place in described body shaft portion is provided with the internal thread cavity of hollow, described internal thread cavity and described thread spindle threaded engagement, described end touch part is for engaging described selected driven cell panel to carry out pivot driver;
Described thread spindle is provided with the thread spindle cavity of hollow in the part of described contiguous block, the second internal spline is provided with in described thread spindle cavity, in described contiguous block, thrust bearing is installed, between two screws that described thrust bearing coordinates with described contiguous block side first screw rod and contiguous block side second screw rod at described contiguous block, described thread spindle extend in described thrust bearing near the end of described contiguous block, and described thread spindle is provided with collar flange, described collar flange is resisted against the inner ring of described thrust bearing towards the end of described retractor device at described thrust bearing, the outer ring of described thrust bearing is resisted against described contiguous block,
Described telescopic drive motor comprises described electric machine casing and barrel connector, second end place of described electric machine casing is provided with the 3rd external splines, one end of described barrel connector is fixedly connected with described contiguous block, the other end is provided with the 3rd internal spline, and described 3rd internal spline coordinates with the 3rd external splines; Described telescopic drive motor also has drive shaft, described drive shaft is provided with the second external splines, and described drive shaft extend in described thread spindle cavity, and described second external splines coordinates with described second internal spline;
Described solar panel has pivoting hole, and be divided into wafer attach area and drive engaging zones, described pivoting hole is in described wafer attach area and drive between engaging zones, wafer attach area and driving engaging zones lay respectively at the front and back of described solar panel, described driving engaging zones is used for engaging with described end touch part thus driving when described expansion link stretches out described solar panel pivotable to make the panel backside corresponding with described wafer attach area near described framework body, now selected driven solar panel is in maintenance state, the maintenance space corresponding with each described solar panel is provided with in described framework body, also reduction torsion spring is provided with between described solar panel and described trunnion axis, the operating state receiving sunlight is reset to can make described solar panel when described expansion link bounces back, now, the wafer attach area pivotable of described solar panel leaves described framework body, the metal flexible stay cord that the stroke of described reset is limited also is provided with between described solar panel and described trunnion axis,
Described driving engaging zones is the metallic plate of alloy steel material, and described metallic plate can be dismantled from described solar panel, thus can change after described metallic plate weares and teares;
Every layer of maintenance space corresponding with described solar panel all arranges floor, and described base is fixedly installed on the floor in the maintenance space corresponding with described solar panel of the bottom;
During use, described driving pulley synchronously can drive three described bolt rotaries, thus makes described expansion link aim at the selected driving engaging zones wanting driven solar panel; Described telescopic drive motor drives described expansion link to stretch out and pushes up the described driving engaging zones of pressure wants driven solar panel pivotable enter maintenance state to make described selecting; The pressure on top surface that described expansion link bears is delivered on described contiguous block by described thread spindle and described thrust bearing, freely can slide axially due to spline fitted between described thread spindle and described drive shaft, therefore make drive shaft and described pressure on top surface completely cut off; Spline fitted between electric machine casing and barrel connector makes can slide to axial between electric machine casing and barrel connector, therefore, the screw rod strain be delivered to by contiguous block caused by the pressure on top surface on contiguous block side first screw rod and contiguous block side second screw rod can be absorbed by the slip to axial between electric machine casing and barrel connector, therefore, the described screw rod strain of described electric machine casing and contiguous block side first screw rod and contiguous block side second screw rod completely cuts off.
Pass through such scheme, engage embody rule occasion of the present invention, because the installation site of solar panel is usually higher, be not easy to safeguard, and by setting of the present invention, it can when certain cell panel breaks down, corresponding cell panel is switched to the position near safeguarding space, thus maintenance process is carried out to the back side of cell panel, simultaneously, also be convenient to safeguard the front of cell panel, it can operate each piece of cell panel of upper and lower vertical distribution, and can cell panel be made after the activation to automatically reset, maintenance speed is fast, improve the generating efficiency of whole panel system.
Accompanying drawing explanation
Fig. 1 is the structural representation of panel system framework body of the present invention;
Fig. 2 is the structure chart of retractor device of the present invention.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the partial enlarged drawing of Fig. 2.
Fig. 5 is the schematic diagram of screw drive structure of the present invention.
Embodiment
1-5 by reference to the accompanying drawings, makes detailed explaination to the present invention.
A kind of solar panel system with dismountable driving engaging zones, comprise framework body 1, multiple solar panel 3 and cell panel pivot driver device 4, wherein, described framework body 1 comprises column 2, described multiple solar panel 3 self is pivoted on the trunnion axis 22 of described column 2 separatedly, and trunnion axis 22 is orthogonal with described column 2 and be fixedly connected with;
Described cell panel pivot driver device 4 is for carrying out pivot driver to selected driven cell panel, described cell panel pivot driver device 4 comprises: telescopic drive motor 45, contiguous block 48, retractor device 46, base 41, motor side screw rod 42, contiguous block side first screw rod 43 and contiguous block side second screw rod 44, described telescopic drive motor 45 is for driving the flexible of described retractor device 46, described contiguous block 48 is between described telescopic drive motor 45 with described retractor device 46 and be connected with described retractor device 46 by described telescopic drive motor 45, the first end threaded engagement of the electric machine casing 453 of described motor side screw rod 42 and described telescopic drive motor 45, contiguous block side first screw rod 43 and contiguous block side second screw rod 44 and described contiguous block 48 threaded engagement, screw drive is provided with in base 41, described screw drive comprises the first cog belt belt wheel 420 for drive motors side screw rod 42, for driving the second cog belt belt wheel 430 of contiguous block side first screw rod 43 and for driving the 3rd cog belt belt wheel 440 of contiguous block side second screw rod 44, described first cog belt belt wheel 420, second cog belt belt wheel 430 and the 3rd cog belt belt wheel 440 diameter identical, and connected by ring-type cog belt 411, described ring-type cog belt 411 also engages with driving pulley 412, described driving pulley 412 connects with screw drive motor power,
Described retractor device 46 comprises outer sleeve 461, expansion link 462 and thread spindle 463, one end of described outer sleeve 461 is fixedly connected with contiguous block 48, the other end has the first internal spline 4611, described expansion link 462 is divided into body shaft portion and end touch part 4622, described body shaft portion is provided with the first external splines coordinated with described first internal spline 4611, the axis part place in described body shaft portion is provided with the internal thread cavity of hollow, described internal thread cavity and described thread spindle 463 threaded engagement, described end touch part 4622 is for engaging described selected driven cell panel to carry out pivot driver,
Described thread spindle 463 is provided with the thread spindle cavity 4632 of hollow in the part of described contiguous block 48, the second internal spline is provided with in described thread spindle cavity, in described contiguous block 48, thrust bearing 481 is installed, between two screws that described thrust bearing coordinates with described contiguous block side first screw rod 43 and contiguous block side second screw rod 44 at described contiguous block 48, described thread spindle extend in described thrust bearing 481 near the end of described contiguous block 48, and described thread spindle is provided with collar flange 4631, described collar flange 4631 is resisted against the inner ring of described thrust bearing 481 towards the end of described retractor device 46 at described thrust bearing 481, the outer ring of described thrust bearing 481 is resisted against described contiguous block 48,
Described telescopic drive motor 45 comprises described electric machine casing 453 and barrel connector 452, second end place of described electric machine casing 453 is provided with the 3rd external splines, one end of described barrel connector 452 is fixedly connected with described contiguous block 48, the other end is provided with the 3rd internal spline, and described 3rd internal spline coordinates with the 3rd external splines; Described telescopic drive motor 45 also has drive shaft, described drive shaft is provided with the second external splines, and described drive shaft extend in described thread spindle cavity 4632, and described second external splines coordinates with described second internal spline;
Described solar panel 3 has pivoting hole 32, and be divided into wafer attach area 33 and drive engaging zones 31, described pivoting hole 32 is in described wafer attach area 33 and drive between engaging zones 31, wafer attach area 33 and driving engaging zones 31 lay respectively at the front and back of described solar panel 3, described driving engaging zones 31 is for engaging with described end touch part 4622 thus driving when described expansion link 462 stretches out described solar panel 3 pivotable to make the panel backside corresponding with described wafer attach area 33 near described framework body 1, now selected driven solar panel 3 is in maintenance state, the maintenance space 11 corresponding with each described solar panel 3 is provided with in described framework body 1, also reduction torsion spring is provided with between described solar panel 3 and described trunnion axis 22, the operating state receiving sunlight is reset to can make described solar panel 3 when described expansion link 462 bounces back, now, wafer attach area 33 pivotable of described solar panel 3 leaves described framework body 1, the metal flexible stay cord 321 that the stroke of described reset is limited also is provided with between described solar panel 3 and described trunnion axis 22,
Described driving engaging zones 31 is the metallic plate of alloy steel material, and described metallic plate can be dismantled from described solar panel 3, thus can change after described metallic plate weares and teares;
Every layer of maintenance space 11 corresponding with described solar panel 3 all arranges floor 111, and described base 41 is fixedly installed on the floor 111 in the maintenance space 11 corresponding with described solar panel 3 of the bottom;
During use, described driving pulley 412 can synchronously drive three described screw rods 42,43,44 to rotate, thus makes described expansion link 462 aim at the selected driving engaging zones 31 wanting driven solar panel 3; Described telescopic drive motor 45 drives described expansion link 462 to stretch out and pushes up the described driving engaging zones 31 of pressure wants driven solar panel 3 pivotable enter maintenance state to make described selecting; The pressure on top surface that described expansion link 462 bears is delivered on described contiguous block 48 by described thread spindle 463 and described thrust bearing 481, freely can slide axially due to spline fitted between described thread spindle 463 and described drive shaft, therefore make drive shaft and described pressure on top surface completely cut off; Spline fitted between electric machine casing 453 and barrel connector 452 makes can slide to axial between electric machine casing 453 and barrel connector 452, therefore, the screw rod strain be delivered to by contiguous block 48 caused by the pressure on top surface on contiguous block side first screw rod 43 and contiguous block side second screw rod 44 can be absorbed by the slip to axial between electric machine casing 453 and barrel connector 452, therefore, described electric machine casing 453 completely cuts off with the described screw rod strain of contiguous block side first screw rod 43 and contiguous block side second screw rod 44.
Above embodiment is just for explanatory information of the present invention, and the scope of not intended to be limiting the claims in the present invention.
Claims (1)
1. one kind has the solar panel system of dismountable driving engaging zones, comprise framework body (1), multiple solar panel (3) and cell panel pivot driver device (4), wherein, described framework body (1) comprises column (2), described multiple solar panel (3) self is pivoted on the trunnion axis (22) of described column (2) separatedly, and trunnion axis (22) is orthogonal with described column (2) and be fixedly connected with;
Described cell panel pivot driver device (4) is for carrying out pivot driver to selected driven cell panel, described cell panel pivot driver device (4) comprising: telescopic drive motor (45), contiguous block (48), retractor device (46), base (41), motor side screw rod (42), contiguous block side first screw rod (43) and contiguous block side second screw rod (44), described telescopic drive motor (45) is for driving the flexible of described retractor device (46), described contiguous block (48) is positioned at described telescopic drive motor (45) and described telescopic drive motor (45) is connected with described retractor device (46) with between described retractor device (46), the first end threaded engagement of the electric machine casing (453) of described motor side screw rod (42) and described telescopic drive motor (45), contiguous block side first screw rod (43) and contiguous block side second screw rod (44) and described contiguous block (48) threaded engagement, base is provided with screw drive in (41), described screw drive comprises the first cog belt belt wheel (420) for drive motors side screw rod (42), for driving the second cog belt belt wheel (430) of contiguous block side first screw rod (43) and for driving the 3rd cog belt belt wheel (440) of contiguous block side second screw rod (44), described first cog belt belt wheel (420), second cog belt belt wheel (430) and the 3rd cog belt belt wheel (440) diameter identical, and connected by ring-type cog belt (411), described ring-type cog belt (411) is also engaged with driving pulley (412), described driving pulley (412) connects with screw drive motor power,
Described retractor device (46) comprises outer sleeve (461), expansion link (462) and thread spindle (463), one end of described outer sleeve (461) is fixedly connected with contiguous block (48), the other end has the first internal spline (4611), described expansion link (462) is divided into body shaft portion and end touch part (4622), described body shaft portion is provided with the first external splines coordinated with described first internal spline (4611), the axis part place in described body shaft portion is provided with the internal thread cavity of hollow, described internal thread cavity and described thread spindle (463) threaded engagement, described end touch part (4622) is for engaging described selected driven cell panel to carry out pivot driver,
Described thread spindle (463) is provided with the thread spindle cavity (4632) of hollow in the part of described contiguous block (48), the second internal spline is provided with in described thread spindle cavity, thrust bearing (481) is installed in described contiguous block (48), described thrust bearing is positioned between two screws that described contiguous block (48) coordinates with described contiguous block side first screw rod (43) and contiguous block side second screw rod (44), described thread spindle extend in described thrust bearing (481) near the end of described contiguous block (48), and described thread spindle is provided with collar flange (4631), described collar flange (4631) is resisted against the inner ring of described thrust bearing (481) towards the end of described retractor device (46) at described thrust bearing (481), the outer ring of described thrust bearing (481) is resisted against described contiguous block (48),
Described telescopic drive motor (45) comprises described electric machine casing (453) and barrel connector (452), second end place of described electric machine casing (453) is provided with the 3rd external splines, one end of described barrel connector (452) is fixedly connected with described contiguous block (48), the other end is provided with the 3rd internal spline, and described 3rd internal spline coordinates with the 3rd external splines; Described telescopic drive motor (45) also has drive shaft, described drive shaft is provided with the second external splines, and described drive shaft extend in described thread spindle cavity (4632), and described second external splines coordinates with described second internal spline;
Described solar panel (3) has pivoting hole (32), and be divided into wafer attach area (33) and drive engaging zones (31), described pivoting hole (32) is positioned at described wafer attach area (33) and drives between engaging zones (31), wafer attach area (33) and driving engaging zones (31) lay respectively at the front and back of described solar panel (3), described driving engaging zones (31) is for engaging with described end touch part (4622) thus driving when described expansion link (462) stretches out described solar panel (3) pivotable to make the panel backside corresponding with described wafer attach area (33) near described framework body (1), now selected driven solar panel (3) is in maintenance state, the maintenance space (11) corresponding with each described solar panel (3) is provided with in described framework body (1), also reduction torsion spring is provided with between described solar panel (3) and described trunnion axis (22), the operating state receiving sunlight is reset to can make described solar panel (3) when described expansion link (462) bounces back, now, wafer attach area (33) pivotable of described solar panel (3) leaves described framework body (1), the metal flexible stay cord (321) that the stroke of described reset is limited also is provided with between described solar panel (3) and described trunnion axis (22),
The metallic plate that described driving engaging zones (31) is alloy steel material, and described metallic plate can be dismantled from described solar panel (3), thus can change after described metallic plate weares and teares;
Every layer of maintenance space (11) corresponding with described solar panel (3) all arranges floor (111), and described base (41) is fixedly installed on the floor (111) in the maintenance space (11) corresponding with described solar panel (3) of the bottom;
During use, described driving pulley (412) can synchronously drive three described screw rods (42,43,44) to rotate, thus makes described expansion link (462) aim at the selected driving engaging zones (31) wanting driven solar panel (3), described telescopic drive motor (45) drives described expansion link (462) to stretch out and pushes up the described driving engaging zones (31) of pressure and enters maintenance state to make described selected driven solar panel (3) pivotable of wanting, the pressure on top surface that described expansion link (462) bears is delivered on described contiguous block (48) by described thread spindle (463) and described thrust bearing (481), freely can slide axially due to spline fitted between described thread spindle (463) and described drive shaft, therefore make drive shaft and described pressure on top surface completely cut off, spline fitted between electric machine casing (453) and barrel connector (452) makes can slide to axial between electric machine casing (453) and barrel connector (452), therefore, the screw rod strain be delivered to by contiguous block (48) caused by the pressure on top surface on contiguous block side first screw rod (43) and contiguous block side second screw rod (44) can be absorbed by the slip to axial between electric machine casing (453) and barrel connector (452), therefore, described electric machine casing (453) completely cuts off with the described screw rod strain of contiguous block side first screw rod (43) and contiguous block side second screw rod (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551729.8A CN104393823B (en) | 2014-10-17 | 2014-10-17 | A kind of solar panel system with dismountable driving engaging zones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551729.8A CN104393823B (en) | 2014-10-17 | 2014-10-17 | A kind of solar panel system with dismountable driving engaging zones |
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| Publication Number | Publication Date |
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| CN104393823A CN104393823A (en) | 2015-03-04 |
| CN104393823B true CN104393823B (en) | 2015-11-11 |
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| CN201410551729.8A Active CN104393823B (en) | 2014-10-17 | 2014-10-17 | A kind of solar panel system with dismountable driving engaging zones |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080015897A (en) * | 2008-01-09 | 2008-02-20 | 주식회사 티.엠.테크 | A high capacity solar beam energy accumulating apparatus |
| KR20090003817U (en) * | 2007-10-19 | 2009-04-23 | 주식회사 대경에너텍 | An Apparatus for Controlling Rotation of Son Light Module Installing Structure |
| CN201256369Y (en) * | 2008-09-08 | 2009-06-10 | 动力新跃(北京)汽车科技有限公司 | Telescopic solar panel |
| CN201809911U (en) * | 2010-10-01 | 2011-04-27 | 华汇工程设计集团有限公司 | Translating and sliding support type photovoltaic sun shading system |
-
2014
- 2014-10-17 CN CN201410551729.8A patent/CN104393823B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090003817U (en) * | 2007-10-19 | 2009-04-23 | 주식회사 대경에너텍 | An Apparatus for Controlling Rotation of Son Light Module Installing Structure |
| KR20080015897A (en) * | 2008-01-09 | 2008-02-20 | 주식회사 티.엠.테크 | A high capacity solar beam energy accumulating apparatus |
| CN201256369Y (en) * | 2008-09-08 | 2009-06-10 | 动力新跃(北京)汽车科技有限公司 | Telescopic solar panel |
| CN201809911U (en) * | 2010-10-01 | 2011-04-27 | 华汇工程设计集团有限公司 | Translating and sliding support type photovoltaic sun shading system |
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| Publication number | Publication date |
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| CN104393823A (en) | 2015-03-04 |
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Inventor after: Jin Hang Inventor after: He Lin Inventor after: Deng Xianqin Inventor after: Gu Liuxing Inventor after: Li Xianning Inventor after: Zhao Yang Inventor after: Peng Ming Inventor after: Liao Wei Inventor before: Lou Biyun |
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Effective date of registration: 20151120 Address after: 200002 Shanghai City, Pudong New Area source deep road, No. 1122 Patentee after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Address before: 510640 Guangdong city of Guangzhou province Tianhe District gold Yinglu No. 1 was 1106 room two Patentee before: GUANGDONG HUABO ENTERPRISE MANAGEMENT CONSULTING Co.,Ltd. Effective date of registration: 20151120 Address after: 510640 Guangdong city of Guangzhou province Tianhe District gold Yinglu No. 1 was 1106 room two Patentee after: GUANGDONG HUABO ENTERPRISE MANAGEMENT CONSULTING Co.,Ltd. Address before: 322001, No. 21, No. 5 Futian two district, Yiwu City, Zhejiang, Jinhua Patentee before: YIWU KAIJING IMPORT & EXPORT CO.,LTD. |