CN106783339B - The plug-in strip of anti-contact sparking - Google Patents
The plug-in strip of anti-contact sparking Download PDFInfo
- Publication number
- CN106783339B CN106783339B CN201611236256.8A CN201611236256A CN106783339B CN 106783339 B CN106783339 B CN 106783339B CN 201611236256 A CN201611236256 A CN 201611236256A CN 106783339 B CN106783339 B CN 106783339B
- Authority
- CN
- China
- Prior art keywords
- contact
- rotation axis
- static contact
- flabellum
- plug
- 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
- 230000003068 static effect Effects 0.000 claims abstract description 51
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 241000883990 Flabellum Species 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000012774 insulation material Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 2
- 239000010931 gold Substances 0.000 claims 2
- 229910052737 gold Inorganic materials 0.000 claims 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 229920001596 poly (chlorostyrenes) Polymers 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 3
- 238000010891 electric arc Methods 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical group [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011224 oxide ceramic Substances 0.000 description 2
- -1 polybutylene terephthalate Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 244000145845 chattering Species 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/54—Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/12—Bases; Stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
Abstract
The invention discloses a kind of plug-in strips of anti-contact sparking, including：Insulation shell；Pedestal, it is arranged inside the insulation shell, the pedestal upper horizontal rotation is provided with the first rotation axis and the second rotation axis, and first rotation axis is mutually perpendicular to second rotation axis, first rotation axis is fixed with the first angular wheel, the second angular wheel is fixed in second rotation axis, first angular wheel is meshed with second angular wheel；One end of moving contact and static contact, the moving contact is fixed in first rotation axis, and the static contact is fixed on the base, and the moving contact is arranged in a manner of caning turn to the other end and being contacted with the static contact.The present invention can effectively prevent the generation of contact spark phenomenon, additionally it is possible to remove the dust for falling product in plug-in strip, improve the contact condition between dynamic/static contact.
Description
Technical field
The present invention relates to electric power electric fields.It is more particularly related to a kind of plug-in strip of anti-contact sparking.
Background technology
Plug-in strip is the electrical equipment relatively common in low pressure electrical domain, however the range that common thing uses
More extensive, therefore, people also proposed increasingly higher demands to the safe application performance of plug-in strip, in usual life, people
Often it can be seen that such case, during being closed a floodgate or being opened a sluice gate to plug-in strip, dynamic/static contact contact or separation
Moment has blue electric arc and lightens, in fact, this electric arc is not to be generated when dynamic/static contact contacts, but in dynamic/static contact
Before contact, sharp parts point discharge on moving contact simultaneously ionizes portion of air, makes to generate positive and negative charge in air and establishes electricity
The electric arc that flow path generates, this electric arc is easy to cause spark, once electric wire aging fire, meanwhile, this electric arc
The high temperature that moment generates can melt static contact, cause the loss of stationary contact head material, after long-time use, will be produced between dynamic/static contact
Raw gap, is easy to cause poor contact, and poor contact when can not only damage electrical appliance but also can be further exacerbated by contact
Spark phenomenon.
Invention content
It is an object of the invention to solve at least the above, and provide the advantages of at least will be described later.
In order to realize these purposes and other advantages according to the present invention, a kind of plug-in strip of anti-contact sparking, packet are provided
It includes：
Insulation shell.
Pedestal is arranged inside the insulation shell, and pedestal upper horizontal rotation is provided with the first rotation axis and the
Two rotation axis, and first rotation axis is mutually perpendicular to second rotation axis, first rotation axis is fixed with the first cone
Shape gear is fixed with the second angular wheel, first angular wheel and second angular wheel in second rotation axis
It is meshed.
One end of moving contact and static contact, the moving contact is fixed in first rotation axis, and the static contact is fixed
On the base, the moving contact is arranged in a manner of caning turn to the other end and being contacted with the static contact, the static contact
For the U-shaped structure that middle part inside contracts, the moving contact forms smooth protrusion with the position of the contact of the static contact, described convex
Go out portion to match with the static contact lower part, it is big compared with the static contact that the bottom outer surface of the static contact is covered with coefficient of thermal expansion
Metal layer.
Even slice flabellum, uniform ring are located in second rotation axis, the edge contour of the opposite sides of the flabellum
Meet parabola, and the thickness of flabellum is gradually increased by one side edge to another lateral edges, the flabellum is plastics material
Matter, number are that the free end of the flabellum of odd number is provided with a bar shaped cavity, and a metal ball is placed in the bar shaped cavity.
Flabellum shell is enclosed in outside second rotation axis and the even slice flabellum, and is formed towards the static contact
Gas channel.
Preferably, first rotation axis, the first angular wheel, the second rotation axis and the second angular wheel are insulation
Fire proofing is made.
Preferably, the flame-resistant insulation material is polyvinyl chloride.
Preferably, first rotation axis, the first angular wheel, the second rotation axis and the second tapered camming surface are coated with
Wear-resistant coating.
Preferably, the transmission ratio of first angular wheel and the second angular wheel is 1：10.
Preferably, the flabellum is both connected on a becket, and the becket is connected to described by a bearing
In two rotation axis.
Preferably, the material of the static contact is silver-nickel, and the material of the metal layer is albronze.
Preferably, the parabolical expression formula of the edge contour of the flabellum is y=0.55x (1-x) ± 0.42x0.5
(1-x)1.5。
The present invention includes at least following advantageous effect：
1, the present invention can effectively prevent the generation of contact spark phenomenon.
2, the present invention can also remove the dust for falling product in plug-in strip, improve the contact condition between dynamic/static contact.
3, structure of the invention is simple and does power, clean environment firendly without other energy.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the structural schematic diagram of the plug-in strip of anti-contact sparking of the present invention；
Structural schematic diagram when Fig. 2 is moving contact of the present invention and static contact contact.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and is not the dress of instruction or hint meaning
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
As depicted in figs. 1 and 2, the present invention provides a kind of plug-in strip of anti-contact sparking, including：
Insulation shell.
Pedestal 1 is arranged inside the insulation shell, and the rotation of 1 upper horizontal of the pedestal is provided with 2 He of the first rotation axis
Second rotation axis 3, and first rotation axis 2 is mutually perpendicular to second rotation axis 3, first rotation axis 2 is fixed with
First angular wheel 4, is fixed with the second angular wheel 5 in second rotation axis 3, first angular wheel 4 and described the
Two angular wheels 5 are meshed.
One end of moving contact 6 and static contact 7, the moving contact 6 is fixed in first rotation axis 2, the static contact 7
It is fixed on the pedestal 1, the moving contact 6 is arranged in a manner of caning turn to the other end and being contacted with the static contact 7, described
Static contact 7 is the U-shaped structure that middle part inside contracts, and the moving contact 6 forms smooth protrusion with the position of the contact of the static contact 7
Portion 8, the protrusion 8 are matched with 7 lower part of the static contact, and the bottom outer surface of the static contact 7 is covered with coefficient of thermal expansion
The big metal layer 9 of the static contact.
Even slice flabellum 10, uniform ring are located in second rotation axis 3, the edge of the opposite sides of the flabellum 10
Profile meets parabola, and the thickness of flabellum 10 is gradually increased by one side edge to another lateral edges, the flabellum 10
For plastic material, number is that the free end of the flabellum 10 of odd number is provided with a bar shaped cavity, and one is placed in the bar shaped cavity
Metal ball.
Flabellum shell 11 is enclosed in outside second rotation axis 3 and the even slice flabellum 10, and is formed towards described quiet
The gas channel of contact 7.
The plug-in strip for the anti-contact sparking that this programme provides, when in use, rotation moving contact 6 make it be leaned on to 7 direction of static contact
Hold together, the first angular wheel 4 rotation that moving contact 6 will drive the first rotation axis 2 and be connected in the first rotation axis 2, and because
It is engaged for the first angular wheel 4 and the second angular wheel 5, so rotational action will be passed to second by the first angular wheel 4
Angular wheel 5, the second angular wheel 5 continue to drive the second rotation axis 3 and are connected to 10 turns of flabellum in the second rotation axis 3 again
It is dynamic, and because the edge contour of flabellum 10, which is parabola, meets aerodynamic requirement, larger wind-force, Er Qieye can be generated
The metal ball of piece end is avoided that the chattering during flabellum rotation, reduces flabellum irregular movement and reduces wind-force, fans
The wind that leaf rotation generates blows to static contact 7 by the gas channel that flabellum shell 11 surrounds, and wind can confuse in air during blowing
The movement locus of positive and negative charge is allowed to cannot to be formed the phenomenon that electric arc is struck sparks so as to avoid contact, and when wind is blown
The dust being accumulated on pedestal 1 can also be cleared up, moving contact 6 and the contact site of static contact 7 form smooth protrusion 8, do not have
The sharp parts at similar right angle largely avoid point discharge phenomenon, but when dynamic/static contact contacts will produce it is larger
Contact resistance cause 7 moment of static contact heat up, be covered on the bottom outer surface of static contact 7 metal layer 9 because thermally expand be
Number is big compared with static contact 7, will expand and wrap static contact 7, so that static contact 7 is contacted with moving contact 6 more complete, reduces because quiet
Poor contact phenomenon caused by 7 material of contact is lost in.
In another embodiment, first rotation axis 2, the first angular wheel 4, the second rotation axis 3 and the second conical tooth
Wheel 5 is that flame-resistant insulation material is made, the flame-resistant insulation material include polybutylene terephthalate (PBT) or polyvinyl chloride or
Polypropylene flame redardant, the flame-resistant insulation material are avoided that conductive short circuit accident occurs, will not burn and cause having electric spark
Fire.
In another embodiment, the flame-resistant insulation material is polyvinyl chloride, and material is simple and easy to get and has some strength, symbol
Close the transmission requirement of the present invention.
In another embodiment, first rotation axis 2, the first angular wheel 4, the second rotation axis 3 and the second conical tooth
It takes turns 5 surfaces and is coated with wear-resistant coating, the abrasion-resistant coating material includes aluminium oxide or chromium oxide ceramics or titanium oxide ceramics, because on
State that transmission parts are easy to wear, thus after coating wear-resistant coating can high degree extend the service life of each transmission parts.
In another embodiment, the transmission ratio of first angular wheel, 4 and second angular wheel 5 is 1：10, the transmission
Than flabellum 10 can be made to rotate generation for a long time, persistently wind-force carrys out arc extinguishing.
In another embodiment, the flabellum 10 is both connected on a becket, and the becket is connected by a bearing
In second rotation axis 3, bearing and becket are because stiction follows the second rotation axis 3 to rotate together, and the
Two rotation axis 3 remain to continue rotation a period of time after stopping operating, to reduce the temperature on static contact 7.
In another embodiment, the material of the static contact 7 is silver-nickel, and small resistance value is good contact material,
The material of the metal layer 9 is albronze, and coefficient of thermal expansion is much larger than silver-nickel, can be wrapped up well after expanded by heating
Firmly static contact 7 and generate side pressure.
In another embodiment, the parabolical expression formula of the edge contour of the flabellum 10 be y=0.55x (1-x) ±
0.42x0.5(1-x)1.5, which preferably meets aerodynamic demands, can generate the wind-force of bigger.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (7)
1. a kind of plug-in strip of anti-contact sparking, which is characterized in that including：
Insulation shell；
Pedestal is arranged inside the insulation shell, and the pedestal upper horizontal rotation is provided with the first rotation axis and second turn
Moving axis, and first rotation axis is mutually perpendicular to second rotation axis, first rotation axis is fixed with the first conical tooth
It takes turns, is fixed with the second angular wheel in second rotation axis, first angular wheel is mutually nibbled with second angular wheel
It closes；
One end of moving contact and static contact, the moving contact is fixed in first rotation axis, and the static contact is fixed on institute
It states on pedestal, the moving contact is arranged in a manner of caning turn to the other end and being contacted with the static contact, during the static contact is
The U-shaped structure that portion inside contracts, the moving contact form smooth protrusion, the protrusion with the position of the contact of the static contact
It is matched with the static contact lower part, the bottom outer surface of the static contact is covered with the big gold of the coefficient of thermal expansion static contact
Belong to layer；
Even slice flabellum, uniform ring are located in second rotation axis, and the edge contour of the opposite sides of the flabellum accords with
Parabola is closed, and the thickness of flabellum is gradually increased by one side edge to another lateral edges, the flabellum is plastic material, is compiled
Number the free end of flabellum of odd number is provided with a bar shaped cavity, a metal ball is placed in the bar shaped cavity；
Flabellum shell is enclosed in outside second rotation axis and the even slice flabellum, and forms the gas towards the static contact
Circulation road.
2. the plug-in strip of anti-contact sparking as described in claim 1, which is characterized in that first rotation axis, the first conical tooth
Wheel, the second rotation axis and the second angular wheel are that flame-resistant insulation material is made.
3. the plug-in strip of anti-contact sparking as claimed in claim 2, which is characterized in that the flame-resistant insulation material is polychlorostyrene second
Alkene.
4. the plug-in strip of anti-contact sparking as claimed in claim 2, which is characterized in that first rotation axis, the first conical tooth
Wheel, the second rotation axis and the second tapered camming surface are coated with wear-resistant coating.
5. the plug-in strip of anti-contact sparking as described in claim 1, which is characterized in that first angular wheel and the second taper
The transmission ratio of gear is 1：10.
6. the plug-in strip of anti-contact sparking as described in claim 1, which is characterized in that the flabellum is both connected to a becket
On, the becket is connected to by a bearing in second rotation axis.
7. the plug-in strip of anti-contact sparking as described in claim 1, which is characterized in that the material of the static contact is that silver-colored nickel closes
The material of gold, the metal layer is albronze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236256.8A CN106783339B (en) | 2016-12-28 | 2016-12-28 | The plug-in strip of anti-contact sparking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236256.8A CN106783339B (en) | 2016-12-28 | 2016-12-28 | The plug-in strip of anti-contact sparking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106783339A CN106783339A (en) | 2017-05-31 |
| CN106783339B true CN106783339B (en) | 2018-08-17 |
Family
ID=58924836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611236256.8A Active CN106783339B (en) | 2016-12-28 | 2016-12-28 | The plug-in strip of anti-contact sparking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106783339B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529373Y (en) * | 2002-02-03 | 2003-01-01 | 郑春生 | Multifunction combined isolation knife switch |
| CN103578834A (en) * | 2012-07-25 | 2014-02-12 | 湖北网安科技有限公司 | Outdoor low-voltage protection isolation switch |
| CN104992872A (en) * | 2015-08-07 | 2015-10-21 | 马人欢 | Safety electric power knife switch |
| CN205452130U (en) * | 2016-02-17 | 2016-08-10 | 陕西亚彩数码光电科技有限公司 | Outdoor load switch |
| CN205508693U (en) * | 2016-04-07 | 2016-08-24 | 福建恒冠机电设备有限公司 | Isolating switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8063333B2 (en) * | 2008-02-05 | 2011-11-22 | Southern States, Inc. | Limited flash-over electric power switch |
-
2016
- 2016-12-28 CN CN201611236256.8A patent/CN106783339B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529373Y (en) * | 2002-02-03 | 2003-01-01 | 郑春生 | Multifunction combined isolation knife switch |
| CN103578834A (en) * | 2012-07-25 | 2014-02-12 | 湖北网安科技有限公司 | Outdoor low-voltage protection isolation switch |
| CN104992872A (en) * | 2015-08-07 | 2015-10-21 | 马人欢 | Safety electric power knife switch |
| CN205452130U (en) * | 2016-02-17 | 2016-08-10 | 陕西亚彩数码光电科技有限公司 | Outdoor load switch |
| CN205508693U (en) * | 2016-04-07 | 2016-08-24 | 福建恒冠机电设备有限公司 | Isolating switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106783339A (en) | 2017-05-31 |
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|---|---|---|---|
| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180710 Address after: 325608 No. 43, agricultural trade East Road, Hongqiao Town, Yueqing, Wenzhou, Zhejiang Applicant after: Li Gangfang Address before: 542800 1 the Guangxi Zhuang Autonomous Region Hezhou high tech Industrial Development Zone Applicant before: Hezhou Stone Information Technology Co. Ltd. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No.65 Beijing Road, Haicheng District, Beihai City, Guangxi Zhuang Autonomous Region Patentee after: Li Gangfang Address before: 325608 No. 43, agricultural trade East Road, Hongqiao Town, Yueqing, Wenzhou, Zhejiang Patentee before: Li Gangfang |
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| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210514 Address after: 102200 423, 4 / F, block a, Xinhua future city building, 175 Litang Road, Changping District, Beijing Patentee after: Li Qiannan Address before: No.65 Beijing Road, Haicheng District, Beihai City, Guangxi Zhuang Autonomous Region Patentee before: Li Gangfang |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211210 Address after: 271000 Eastern New District, Taishan District, Shandong, Tai'an Patentee after: SHANDONG TAIKAI POWER SWITCHGEAR Co.,Ltd. Address before: 102200 423, 4 / F, block a, Xinhua future city building, 175 Litang Road, Changping District, Beijing Patentee before: Li Qiannan |
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| TR01 | Transfer of patent right |