CN105244216B - Double-cutter head three-station - Google Patents
Double-cutter head three-station Download PDFInfo
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- CN105244216B CN105244216B CN201510741456.8A CN201510741456A CN105244216B CN 105244216 B CN105244216 B CN 105244216B CN 201510741456 A CN201510741456 A CN 201510741456A CN 105244216 B CN105244216 B CN 105244216B
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- conductive plate
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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Abstract
The present invention relates to power switchgear technical field, particularly a kind of Double-cutter head three-station.The problem of operating mechanism is complicated and moving knife seat wears is brought for moving knife hilted broadsword head, the torque drive pattern of existing three-stations load switch, the present invention is designed using Double-cutter head, the new structure of rotating insulated axle driving moving knife motion.Shaft insulation uses piecewise combination pattern, solves the problems, such as mould processed complex and thermoplastic deformation.The beneficial effects of the invention are as follows：Double-fracture designs, and optimizes the Electric Field Distribution of switch cutter, improves electrical security, extends the service life of switch.
Description
Technical field
The present invention relates to power switchgear technical field, particularly a kind of three-station of double-pole header structure.
Background technology
In power distribution network power switchgear, moving knife one end of three-stations load switch is connected to moving knife seat, in moving knife
Portion is provided with hole cylinder lever connecting rod, forms the arm of force by pull bar and moving knife seat pivot point, the motion of moving knife is driven using torque.Document
CN104967009A discloses the said structure of movable switch knife, and insulated tension pole one end is connected with isolation switch blade, is drawn by insulating
The rotation of isolation switch blade is realized in the horizontal movement of bar.Document CN203596308U discloses a kind of rotary moving knife structure,
Using moving knife one end dress on the rotary shaft, moving knife is driven to rotate the combined floodgate for realizing switch, separating brake by operating rotary shaft.Existing three
The major defect of position switch：1st, need using circular arc or spherical manner and increase between moving knife and the electric-conductor of pivot point connection
Spring is added to ensure the reliability of connection, joint face also has abrasion so as to increase loop resistance.2nd, moving knife seat or rotary shaft need
Conductive copper piece is connected, Electric Field Distribution is complicated.
The content of the invention
It is an object of the invention to provide a kind of Double-cutter head three-station, solves the connection reliability deficiency of existing moving knife
The problem of with Electric Field Distribution complexity.
In order to solve the above problems, the technical scheme is that：A kind of Double-cutter head three-station, including main connecting plate
1st, insulating part 6, main connection board insulated piece 7, geostationary knife 8 under the left insulating part 3 of shaft insulation 2, conductive plate, conductive plate 5, conductive plate, its
It is characterised by：Conductive plate 5 has the left static contact 5.1 of conductive plate and conductive plate lower static contact 5.2, and the left static contact 5.1 of conductive plate is fixed
On the left insulating part 3 of conductive plate, conductive plate lower static contact 5.2 is fixed under conductive plate on insulating part 6；Main connecting plate 1 is fixed on
On main connection board insulated piece 7, main connecting plate（1）Arranged in positive apparent direction for level side（Such as Fig. 1）；It is provided among shaft insulation 2
Symmetrical double contact blades 2.5；Main connecting plate 1, shaft insulation 2, conductive plate lower static contact 5.2 center on one wire,
The left static contact 5.1 of conductive plate, shaft insulation 2, geostationary knife 8 center on one wire；Main connecting plate 1, the left static contact of conductive plate
5.1st, conductive plate lower static contact 5.2, geostationary the center line of knife 8 with the centerline of symmetrical double contact blades 2.5 in same
In one plane.
Shaft insulation 2 is combined successively by axle front end 2.1, connecting lever 2.2, shaft rear end 2.3.Shaft insulation 2（Fig. 5）Main body is logical
Cross the spline shape flange shaft of axle front end 2.1 to be inserted in one end spline shape flange sleeve of connecting lever 2.2, be continuously inserted in totally three connecting levers 2.2, then
Shaft rear end 2.3 is connected to complete（Fig. 6）；Each intracavitary of connecting lever 2.2 is provided with the double contact blades 2.5 of two pieces and is fixed on pin 2.4 and turned
On arm 2.2；Double both ends blade support members 2.6 of contact blade 2.5 support, and put disc spring nut tightening, disc spring with screw
Located at double outsides of contact blade 2.5.3 connecting levers 2.2 at the middle part of shaft insulation 2, respectively to A, B, C three-phase of inductive switch.Axle front end
2.1 one end are circular shafts, and have and dock connecting port with operating mechanism.The other end of axle front end 2.1 is spline shape flange shaft.Connecting lever 2.2
One end is provided with spline shape flange sleeve, and the other end is spline shape flange shaft.The one end of shaft rear end 2.3 is provided with spline shape flange sleeve, another
End is circular shaft.
The spline shape flange sleeve of connecting lever 2.2 is provided with inner groovy 2.28 and interior double wedge 2.29, the spline shape flange shaft of connecting lever 2.2
Provided with outer double wedge 2.21, external groove 2.22 and flange face 2.23.Inner groovy 2.28 coordinates with outer double wedge 2.21, interior double wedge 2.29 with
External groove 2.22 coordinates.Spline shape flange shaft can use four teeth or six teeth or octadentate structure, can be with symmetrical or asymmetric
Distribution.Interior reinforcement 2.27 is provided with spline shape flange sleeve and spline shape flange shaft.Square through hole is provided among connecting lever 2.2
2.25, both ends are provided with pin hole 2.24.Reinforcement can also be increased in square through hole 2.25.4 faces in the outside of square through hole 2.25
It is upper respectively added with external reinforcing ribs 2.26.Pin hole 2.24 is used for fixed double contact blades 2.5.
Respectively there are two contacts 2.51, a supported hole 2.52 and a fixing hole 2.53 in double both ends of contact blade 2.5.It is double to touch
Head blade 2.5 both ends center is respectively provided with a seam, extends to fixing hole 2.53.Contact 2.51 can be riveting power switch
Special contact or double punch formings of contact blade 2.5, and hardened and silver-plated process, improve its electric conductivity and
Wearability.In the case that the double both ends of contact blade 2.5 centers are not cracked, because tolerance and error, double contact blades be present in assembling
4 contacts on 2.5 may contact it is uneven, or even to have 1 to 2 contact hanging, the problem of bringing loose contact, and
Loop resistance is caused to increase, heating is serious.In order to solve this problem, a seam is respectively provided with double both ends of contact blade 2.5 center,
Two contacts each are kept effectively being connected by the pressure of spring with quiet knife.Double contact blades（2.5）Respectively it is provided among the contact of both ends
Wide 2~3 millimeters long 50~80 millimeters of groove.Calculated according to blade material and its thickness and the contact pressure that may apply, contact
2.51 centers are advisable for 20 millimeters to 40 millimeters to supported hole centre distance, the center of contact 2.51 to the centre distance 50 of fixing hole 2.53
Millimeter is advisable to 80 millimeters.30 millimeters of the center of contact 2.51 to supported hole center preferred distance, the center of contact 2.51 to fixing hole
Preferably 65 millimeters of 2.53 centre distances.
Shaft insulation 2 adds glass fibre to be process by mould using plastics.Axle front end 2.1, connecting lever 2.2, shaft rear end 2.3
It is process respectively by mould by Shooting Technique.Shaft insulation 2 can also take unitary mould to process, but mold design is more multiple
It is miscellaneous, while be easily caused because length is longer after processing and local contraction metaboly occur, influence the quality of product.Glass fibre carries
The high intensity of plastics, reduces thermoplastic deformation.Plastics, glass fibre are all insulating materials, solve the phase insulation of switch
Problem.
Movable switch knife assembly method：1., 2 double contact blades 2.5 and connecting lever 2.2 are cleaned totally；2., 2 double are touched
The head contact of blade 2.5 is relative, and drains into the square opening of connecting lever 2.2；3., with pin 2.4 pass through pin hole 2.24, be then passed through double touch
The fixing hole 2.53 of head blade 2.5, simultaneously steady pin 2.4 is passed from another side；4., in the supported hole of 2 double contact blades 2.5
Load blade support member 2.6 between 2.52, then passed through with soket head cap screw and passed through from the outside of double contact blades 2.5 after disc spring pad
Supported hole 2.52 and blade support member 2.6, then passed from the supported hole 2.52 of the double contact blades 2.5 in another side, plus pad and
Disc spring, finally tightened with nut；5., by adjusting the distance between double contact blades 2.5, to adjust contact pressure value.To reduce
Influence of the screw to Electric Field Distribution, most handy hemispherical nut seal the screw exposed.
The assembly method of Double-cutter head three-station：1., by the spline shape flange of 3 connecting levers for installing movable switch knife 2.2
Axle is docked in the spline shape flange sleeve of previous connecting lever 2.2, the spline shape flange sleeve of flange face 2.23 and previous connecting lever 2.2
End contact；2., axle front end 2.1 and previous step are assembled into the spline flange sleeve of moving knife connecting lever 2.2 to connecting again, shaft rear end
2.3 assemble the spline flange shaft of moving knife connecting lever 2.2 to connecting with previous step；3., by axle on the front end sleeve of the shaft insulation 2 installed
Set 11 loads in the mounting hole of front shoe 9；4., the rear end of shaft insulation 2 load onto the installation that bearing 12 is installed to rear fixed plate 10
Kong Li；5., insulating part 6 under the left insulating part 3 of conductive plate, conductive plate, main connection board insulated piece 7 are separately fixed at front mounting plate again
9 and rear installing plate 10 on, tightened with interior hexagonal trip bolt 13；6., again by main connecting plate 1 be attached to it is main connection board insulated piece 7 on,
Conductive plate 5 is attached under the left insulating part 3 of conductive plate and conductive plate on insulating part 6, after adjusting cutter head position at grade, is tightened
Prohibit solid nut 4 and sealed the screw exposed with hemispherical nut；7., will geostationary knife 8 is on the grounding copper bar 8.1, with ground connection
Grounding copper bar 8.1 is fixed on front shoe 9 and rear fixed plate 10 by clamp nut 8.2.
Present invention eliminates traditional pull bar, torque mode drives the pattern that moving knife moves, operating mechanism driving shaft insulation
The division operation that can realizes moving knife is rotated, simplifies operating mechanism design.
The present invention realizes the double-fracture of switch, improves electrical security, particularly when safeguarding, has more preferably ensured fortune
The safety of dimension personnel.
Due to being had the advantages that compared with prior art using above-mentioned technical proposal, the present invention：
1. the present invention is simple in construction, the double-fracture function of three-station is realized.Improve the electric safety of product.
2. Double-cutter head symmetric design of the present invention, under shaft insulation drive realizing Double-cutter head is synchronously turned on or off.No
The connection of traditional moving knife and moving knife seat is worn, and extends the service life of product.
3. the connecting lever assembly model of the present invention, reduces the complexity of mould, reduces thermoplastic deformation, improve product
Qualification rate.
Brief description of the drawings
Fig. 1 is three-station combined floodgate schematic diagram of the present invention.
Fig. 2 is three-station separating brake schematic diagram of the present invention.
Fig. 3 is three-station ground state schematic diagram of the present invention.
Fig. 4 is three-station left view of the present invention.
Fig. 5 is shaft insulation of the present invention and moving knife right view.
Fig. 6 is shaft insulation assembling schematic diagram of the present invention.
Fig. 7 is connecting lever front view of the present invention.
Fig. 8 is connecting lever rearview of the present invention.
Fig. 9 is the double contact blade left views of the present invention.
Label declaration in accompanying drawing：It is main connecting plate 1, shaft insulation 2, axle front end 2.1, connecting lever 2.2, outer double wedge 2.21, outer recessed
Groove 2.22, flange face 2.23, pin hole 2.24, square opening 2.25, external reinforcing ribs 2.26, interior reinforcement 2.27, inner groovy 2.28,
Interior double wedge 2.29, pin 2.4, double contact blades 2.5, contact 2.51, supported hole 2.52, fixing hole 2.53, blade support member 2.6,
The left insulating part 3 of conductive plate, clamp nut 4, conductive plate 5, the left static contact 5.1 of conductive plate, conductive plate lower static contact 5.2, conductive plate
Lower insulating part 6, geostationary main connection board insulated piece 7, knife 8, grounding copper bar 8.1, ground connection clamp nut 8.2, front shoe 9, rear solid
Fixed board 10, axle sleeve 11, bearing 12, interior hexagonal trip bolt 13.
Embodiment
It is that the following description is substantially merely exemplary and be not intended to limit the disclosure, application or purposes.Below
The embodiment of Double-cutter head three-station of the present invention is further described with reference to Figure of description.
Embodiment 1：With reference to Fig. 1-4, a kind of Double-cutter head three-station, including main connecting plate 1, shaft insulation 2, conductive plate are left
Insulating part 6, main connection board insulated piece 7, geostationary knife 8 under insulating part 3, conductive plate 5, conductive plate, it is characterised in that：Conductive plate 5 has
The left static contact 5.1 of conductive plate and conductive plate lower static contact 5.2, the left static contact 5.1 of electroplax are fixed on conductive plate and done on insulating part, lead
Electroplax lower static contact 5.2 is fixed under conductive plate on insulating part 6；Main connecting plate 1 is fixed on main connection board insulated piece 7, insulation
Symmetrical double contact blades 2.5 are provided among axle 2；Main connecting plate 1, shaft insulation 2, the center of conductive plate lower static contact 5.2
On one wire, the left static contact 5.1 of conductive plate, shaft insulation 2, geostationary knife 8 center on one wire；Main connecting plate 1, conductive plate
The center of left static contact 5.1, geostationary conductive plate lower static contact 5.2, the center line of knife 8 and symmetrical double contact blades 2.5
Line is in the same plane.In Fig. 1, Double-cutter head is also turned on quiet knife and the conductive plate lower static contact 5.2 on main connecting plate 1, real
Switch closing function is showed.In Fig. 2, Double-cutter head is in vacant state, not charged, realizes switch separating brake function.It is double in Fig. 3
Cutter head is also turned on geostationary knife 8 and the left static contact 5.1 of conductive plate, realizes switch grounding function.
Shaft insulation 2 is combined successively by axle front end 2.1, connecting lever 2.2, shaft rear end 2.3.Shaft insulation 2（Fig. 5）Main body is logical
Cross the spline shape flange shaft of axle front end 2.1 to be inserted in one end spline shape flange sleeve of connecting lever 2.2, be continuously inserted in totally three connecting levers 2.2, then
Shaft rear end 2.3 is connected to complete（Fig. 6）；Each intracavitary of connecting lever 2.2 is designed with the double contact blades 2.5 of two pieces and is fixed on pin 2.4
On connecting lever 2.2；Double both ends blade support members 2.6 of contact blade 2.5 support, and put disc spring nut tightening, dish with screw
Spring is located at double outsides of contact blade 2.5.3 connecting levers 2.2 at the middle part of shaft insulation 2, respectively to A, B, C three-phase of inductive switch.Before axle
It is circular shaft to hold 2.1 one end, and has the flat position docked with operating mechanism.The other end of axle front end 2.1 is spline shape flange shaft.Connecting lever
2.2 one end are provided with spline shape flange sleeve, and the other end is spline shape flange shaft.The one end of shaft rear end 2.3 is provided with spline shape flange sleeve, separately
One end is circular shaft.
Shaft insulation 2（Fig. 5）It is process using plastics plus glass fibre by mould.After axle front end 2.1, connecting lever 2.2, axle
End 2.3 is process by mould by Shooting Technique respectively.Shaft insulation 2 can also take unitary mould to process, but mold design
It is more complicated, while be easily caused because length is longer after processing and local contraction metaboly occur, influence the quality of product.Glass fibers
Dimension improves the intensity of plastics, reduces thermoplastic deformation.Plastics, glass fibre are all insulating materials, solve the alternate of switch
Insulation Problems.
With reference to Fig. 7 and Fig. 8, the spline shape flange sleeve of connecting lever 2.2 is provided with inner groovy 2.28 and interior double wedge 2.29, connecting lever 2.2
Spline shape flange shaft be provided with outer double wedge 2.21, external groove 2.22 and flange face 2.23.Inner groovy 2.28 is matched somebody with somebody with outer double wedge 2.21
Close, interior double wedge 2.29 coordinates with external groove 2.22.Spline shape flange can use four teeth or six teeth or octadentate structure, can be symmetrical
Distribution or asymmetric distribution.Interior reinforcement 2.27 is provided with spline shape flange sleeve and spline shape flange shaft.It is provided among connecting lever 2.2
Square through hole 2.25, both ends are provided with pin hole 2.24.Respectively added with external reinforcing ribs 2.26 on 4 faces in the outside of square through hole 2.25.
Pin hole 2.24 is used for fixed double contact blades 2.5.
Respectively there are two contacts 2.51, a supported hole 2.52 and a fixing hole 2.53 in double both ends of contact blade 2.5.With reference to
Fig. 9, the double both ends of contact blade 2.5 centers are respectively provided with a seam, extend to fixing hole 2.53.Contact 2.51 can be riveting
The special contact of power switch.The center of contact 2.51 to 30 millimeters of supported hole centre distance, the center of contact 2.51 to fixing hole 2.53
65 millimeters of centre distance.
Claims (1)
1. a kind of Double-cutter head three-station, including main connecting plate（1）, shaft insulation（2）, the left isolation beam of conductive plate（3）, conductive plate
（5）, isolation beam under conductive plate（6）, main connecting plate isolation beam（7）, geostationary knife（8）, it is characterised in that：Conductive plate（5）There is conduction
The left static contact of plate（5.1）With conductive plate lower static contact（5.2）, the left static contact of conductive plate（5.1）It is fixed on the left isolation beam of conductive plate
（3）On, conductive plate lower static contact（5.2）It is fixed on isolation beam under conductive plate（6）On；Main connecting plate（1）It is fixed on main connecting plate
Isolation beam（7）On, shaft insulation（2）Centre is provided with symmetrical double contact blades（2.5）；Main connecting plate（1）, shaft insulation（2）、
Conductive plate lower static contact（5.2）Center on one wire, the left static contact of conductive plate（5.1）, shaft insulation（2）, geostationary knife（8）'s
Center is on one wire；Main connecting plate（1）, the left static contact of conductive plate（5.1）, conductive plate lower static contact（5.2）, geostationary knife（8）
Center line and symmetrical double contact blades（2.5）Center line it is in the same plane；Shaft insulation（2）By axle front end
（2.1）, connecting lever（2.2）, shaft rear end（2.3）Combine successively；Axle front end（2.1）One end is circular shaft, and is had and operating mechanism
The flat position of docking, axle front end（2.1）The other end is spline shape flange shaft；Shaft rear end（2.3）One end is provided with spline shape flange sleeve, separately
One end is circular shaft；Connecting lever（2.2）Intracavitary is provided with the double contact blades of two pieces（2.5）And use pin（2.4）It is fixed on connecting lever（2.2）On；
Double contact blades（2.5）Both ends blade support member（2.6）Support, and disc spring nut tightening is put with screw, disc spring is located at
Double contact blades（2.5）Outside；Shaft insulation（2）Centre is provided with symmetrical double contact blades（2.5）；Double contact blades
（2.5）Respectively there are two contacts at both ends（2.51）, a supported hole（2.52）With a fixing hole（2.53）, contact（2.51）Center
To 20 millimeters to 40 millimeters of supported hole centre distance, contact（2.51）Center is to fixing hole（2.53）50 millimeters to 80 of centre distance
Millimeter；Double contact blades（2.5）Both ends center is respectively provided with a seam, extends to fixing hole（2.53）；Contact（2.51）In
The heart is to 30 millimeters of supported hole centre distance, contact（2.51）Center is to fixing hole（2.53）65 millimeters of centre distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510741456.8A CN105244216B (en) | 2015-11-05 | 2015-11-05 | Double-cutter head three-station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510741456.8A CN105244216B (en) | 2015-11-05 | 2015-11-05 | Double-cutter head three-station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105244216A CN105244216A (en) | 2016-01-13 |
| CN105244216B true CN105244216B (en) | 2018-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510741456.8A Active CN105244216B (en) | 2015-11-05 | 2015-11-05 | Double-cutter head three-station |
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| CN (1) | CN105244216B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706037B (en) * | 2017-10-29 | 2020-11-03 | 默飓电气有限公司 | High-voltage load switch |
| CN112735897B (en) * | 2020-12-14 | 2024-03-29 | 河南平高电气股份有限公司 | Grounding switch and interphase coupling device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05182567A (en) * | 1991-05-23 | 1993-07-23 | Siemens Ag | Multi-position rotary switch operated by arc extinguishing gas |
| CN2859788Y (en) * | 2006-01-05 | 2007-01-17 | 镇江龙源电力科技有限公司 | Indoor integrated isolating switch |
| CN201780923U (en) * | 2010-09-02 | 2011-03-30 | 广西银河迪康电气有限公司 | Moving blade device of load switch |
| CN201820688U (en) * | 2010-06-17 | 2011-05-04 | 广西银河迪康电气有限公司 | Moving knife component of high-voltage load switch |
| CN202034286U (en) * | 2011-03-31 | 2011-11-09 | 厦门科力特电气有限公司 | Combined rotatable insulating spindle with isolators |
| CN103367019A (en) * | 2013-07-27 | 2013-10-23 | 北海银河开关设备有限公司 | Movable switch knife |
| CN205092182U (en) * | 2015-11-05 | 2016-03-16 | 北海银河开关设备有限公司 | Double knives head three -workers bit switch |
-
2015
- 2015-11-05 CN CN201510741456.8A patent/CN105244216B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05182567A (en) * | 1991-05-23 | 1993-07-23 | Siemens Ag | Multi-position rotary switch operated by arc extinguishing gas |
| CN2859788Y (en) * | 2006-01-05 | 2007-01-17 | 镇江龙源电力科技有限公司 | Indoor integrated isolating switch |
| CN201820688U (en) * | 2010-06-17 | 2011-05-04 | 广西银河迪康电气有限公司 | Moving knife component of high-voltage load switch |
| CN201780923U (en) * | 2010-09-02 | 2011-03-30 | 广西银河迪康电气有限公司 | Moving blade device of load switch |
| CN202034286U (en) * | 2011-03-31 | 2011-11-09 | 厦门科力特电气有限公司 | Combined rotatable insulating spindle with isolators |
| CN103367019A (en) * | 2013-07-27 | 2013-10-23 | 北海银河开关设备有限公司 | Movable switch knife |
| CN205092182U (en) * | 2015-11-05 | 2016-03-16 | 北海银河开关设备有限公司 | Double knives head three -workers bit switch |
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| Publication number | Publication date |
|---|---|
| CN105244216A (en) | 2016-01-13 |
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Effective date of registration: 20210409 Address after: 536000 2 / F and 3 / F, information center building, Yinhe software science and Technology Park, 11 Tibet Road, Beihai City, Guangxi Zhuang Autonomous Region Patentee after: GUANGXI YINHE DECOM ELECTRIC Co.,Ltd. Address before: 536000 the Guangxi Zhuang Autonomous Region Beihai Haicheng District Tibet Road 11 Galaxy Science and Technology Park Complex Building Patentee before: BEIHAI GALAXY SWITCH DEVICES Co.,Ltd. |
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Effective date of registration: 20211209 Address after: 536000 2 / F and 3 / F, information center building, Yinhe software science and Technology Park, 11 Tibet Road, Beihai City, Guangxi Zhuang Autonomous Region Patentee after: Dikang Electric Co.,Ltd. Address before: 225000 in Zhongman power Jiangsu Co., Ltd., Zhongman Road, high tech Development Zone, Yangzhou City, Jiangsu Province Patentee before: Jiangsu deyidikang Technology Co.,Ltd. |