CN112002526A - High-voltage wireless power transmission coil - Google Patents
High-voltage wireless power transmission coil Download PDFInfo
- Publication number
- CN112002526A CN112002526A CN202010909057.9A CN202010909057A CN112002526A CN 112002526 A CN112002526 A CN 112002526A CN 202010909057 A CN202010909057 A CN 202010909057A CN 112002526 A CN112002526 A CN 112002526A
- Authority
- CN
- China
- Prior art keywords
- epoxy resin
- resin base
- base layer
- coil
- layer
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/327—Encapsulating or impregnating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The application discloses high-voltage wireless power transmission coil relates to wireless power transmission technical field, includes: the coil comprises an epoxy resin base layer, a coil layer, an insulating layer and a fixing mechanism; the center of the top surface of the epoxy resin base layer is provided with a through hole penetrating through the epoxy resin base layer; the coil layer is arranged on the top surface of the epoxy resin base layer; the insulating layer covers the outer surface of the coil layer; the fixing mechanism is arranged on the epoxy resin base layer and is provided with a plurality of adjustable clamping ends which movably extend into the through holes; a clamping gap is formed between the plurality of clamping ends. The use requirement under the high pressure environment can be satisfied, and light in weight installs simple reliable.
Description
Technical Field
The application relates to the technical field of wireless power transmission, in particular to a high-voltage wireless power transmission coil.
Background
The wireless power transmission technology has huge application potential due to the characteristics of non-contact power transmission, and can solve the power supply problem for intelligent monitoring equipment of a high-voltage power transmission line. Through the specially designed electric energy transmission coil, meter-level transmission of electric energy from the high-voltage transmission line to the tower side monitoring device can be realized, and meanwhile, electrical isolation between the receiving end and the transmitting end is guaranteed.
The wireless coil device is applied to wireless power supply from a power transmission line to detection equipment at present, and due to the limitation of the structural design, the use reliability under the high-voltage condition is difficult to guarantee, and the problems of heavy weight and high installation difficulty exist.
Disclosure of Invention
In view of this, an object of the present application is to provide a high-voltage wireless power transmission coil, which can meet the use requirement in a high-voltage environment, and is light in weight and simple and reliable in installation.
In order to achieve the above technical object, the present application provides a high voltage wireless power transmission coil, including: the coil comprises an epoxy resin base layer, a coil layer, an insulating layer and a fixing mechanism;
the center of the top surface of the epoxy resin base layer is provided with a through hole penetrating through the epoxy resin base layer;
the coil layer is arranged on the top surface of the epoxy resin base layer;
the insulating layer covers the outer surface of the coil layer;
the fixing mechanism is arranged on the epoxy resin base layer and is provided with a plurality of adjustable clamping ends which movably extend into the through holes;
a plurality of the clamping ends form a clamping gap therebetween.
Furthermore, the coil layer consists of n turns of windings, wherein n is more than or equal to 2 and is an integer;
and the n turns of windings are spirally distributed around the through hole and are sequentially arranged along the through hole towards the outer peripheral surface direction of the epoxy resin base layer.
Further, the top surface of the epoxy resin base layer is provided with an interface terminal;
the interface terminal is respectively and electrically connected with the 1 st turn of winding and the nth turn of winding.
Furthermore, the width of each turn of the winding distributed along the through hole towards the direction of the outer peripheral surface of the epoxy resin base layer is gradually increased.
Further, the fixing mechanism is composed of a plurality of locking assemblies;
the locking assemblies are distributed around the circumference of the vertical center line of the through hole and respectively comprise a screw rod and two nuts;
one end of the screw rod movably extends into the through hole through the peripheral surface of the epoxy resin base layer to form the clamping end;
the nut is sleeved on the rod section of the screw rod extending out of the peripheral surface of the epoxy resin base layer;
and the other nut is sleeved on the rod section of the screw rod extending into the through hole and is fixedly connected with the epoxy resin base layer.
Further, the interface terminal is specifically a terminal with an anti-reverse-plugging function.
According to the technical scheme, the stable characteristics of the epoxy resin material in the high-temperature and high-pressure environment are fully utilized to design the epoxy resin base layer, and the insulating layer is used, so that the constructed coil can meet the use requirement in the high-pressure environment. Moreover, the light weight of the epoxy resin material is utilized, so that the whole constructed coil is light in weight and convenient to transport. Meanwhile, the through hole is formed in the middle of the epoxy resin base layer, and a clamping gap is formed in the through hole through the fixing mechanism and used for installation and fixation, so that the installation is simple and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic top view of a high-voltage wireless power transmission coil provided in the present application;
fig. 2 is a partial cross-sectional view of a high voltage wireless power transfer coil provided herein;
fig. 3 is a schematic structural diagram of a high-voltage wireless power transmission coil provided in the present application when applied to a power transmission tower;
in the figure: 1. an epoxy resin base layer; 11. a through hole; 12. a via hole; 2. a coil layer; 21. a winding; 3. a fixing mechanism; 31. a locking assembly; 311. a screw; 312. a nut; 4. an interface terminal; 100. a transmission coil; 200. a pole tower; 300. a power taking device; 401. a camera device; 402. a main chassis; 403. a wind speed and direction sensor; 404. a pole tower inclination angle sensor.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses a high-voltage wireless power transmission coil.
Referring to fig. 1, an embodiment of a high-voltage wireless power transmission coil provided in an embodiment of the present application includes:
the coil comprises an epoxy resin base layer 1, a coil layer 2, an insulating layer and a fixing mechanism 3; the center of the top surface of the epoxy resin base layer 1 is provided with a through hole 11 penetrating through the epoxy resin base layer; the coil layer 2 is arranged on the top surface of the epoxy resin base layer 1; an insulating layer (not shown) covers the outer surface of the coil layer 2; the fixing mechanism 3 is arranged on the epoxy resin base layer 1 and is provided with a plurality of adjustable clamping ends which movably extend into the through holes 11; a clamping gap is formed between the plurality of clamping ends. Wherein the insulating layer can be formed by spraying, for example, an insulating paint on the entire outer surface of the coil layer 2 by a spraying device to form the insulating layer. Wherein the insulating coating can be a nano-scale insulating coating, and those skilled in the art can make appropriate changes based on the nano-scale insulating coating without limitation
According to the technical scheme, the stable characteristics of the epoxy resin material in the high-temperature and high-pressure environment are fully utilized to design the epoxy resin base layer 1, and the insulating layer is used, so that the constructed coil can meet the use requirement in the high-pressure environment. Moreover, the light weight of the epoxy resin material is utilized, so that the whole constructed coil is light in weight and convenient to transport. Meanwhile, the through hole 11 is formed in the middle of the epoxy resin base layer 1, and a clamping gap is formed in the through hole 11 through the fixing mechanism 3 and used for installation and fixation, so that the installation is simple and reliable.
The above is a first embodiment of a high-voltage wireless power transmission coil provided in the embodiments of the present application, and the following is a second embodiment of a high-voltage wireless power transmission coil provided in the embodiments of the present application, please refer to fig. 1 to 3 specifically.
A high voltage wireless power transmission coil comprising: the coil comprises an epoxy resin base layer 1, a coil layer 2, an insulating layer and a fixing mechanism 3; the center of the top surface of the epoxy resin base layer 1 is provided with a through hole 11 penetrating through the epoxy resin base layer; the coil layer 2 is arranged on the top surface of the epoxy resin base layer 1; the insulating layer covers the outer surface of the coil layer 2; the fixing mechanism 3 is arranged on the epoxy resin base layer 1 and is provided with a plurality of adjustable clamping ends which movably extend into the through holes 11; a clamping gap is formed between the plurality of clamping ends.
Furthermore, the structure of the coil layer 2 can be composed of n turns of windings 21, wherein n is more than or equal to 2 and is an integer; the n-turn windings 21 are spirally distributed around the through hole 11 and are sequentially arranged along the through hole 11 towards the peripheral surface of the epoxy resin base layer 1.
Specifically, as shown in fig. 1 or fig. 2, the 1 st turn winding 21 and the 2 nd turn winding 21 … … may be distributed in sequence from the inside to the outside, that is, arranged in sequence along the through hole 11 toward the outer peripheral surface of the epoxy resin base layer 1.
Further, the widths of the turns of the winding 21 may be equal or different. In order to further improve the wireless power transmission efficiency, a gradually-changing line width design may be adopted, for example, the width design of each turn of winding 21 may gradually increase along the through hole 11 toward the outer peripheral surface of the epoxy resin base layer 1, that is, wn＞wn-1＞……＞w2＞w1. Those skilled in the art can make appropriate changes based on the above without limitation.
Further, the top surface of the epoxy resin base layer 1 is provided with an interface terminal 4; the interface terminal 4 is electrically connected to the 1 st turn winding 21 and the n-th turn winding 21, respectively.
Specifically, taking the 1 st turn winding 21 as the innermost winding 21 and the nth turn winding 21 as the outermost winding 21 as an example, the innermost winding 21 may be led out to the outermost winding 21 through the via 12 as shown in fig. 2, so as to be connected to the interface terminal 4. In addition, the interface terminal 4 may be made of a terminal having an anti-reverse insertion function, such as an aviation connector terminal. When the constructed transmission coil 100 is used as a transmitting coil, the interface terminal 4 can be used as a port for inputting high-frequency alternating current and is connected with a power taking device 300 on a power transmission line through a high-voltage insulated cable to obtain electric energy; when the transmission coil 100 is used as a receiving coil, the interface terminal 4 is used as a port for providing high-frequency alternating current for a rear-stage load, and is connected with intelligent monitoring equipment on the tower 200 through a wire via an electric energy conversion device, so that remote power supply is realized.
Further, the fixing mechanism 3 is composed of a plurality of locking assemblies 31; the plurality of locking assemblies 31 are circumferentially distributed around the vertical center line of the through hole 11 and each comprise a screw 311 and two nuts 312; one end of the screw 311 movably extends into the through hole 11 through the peripheral surface of the epoxy resin base layer 1 and forms a clamping end; a nut 312 is sleeved on the rod section of the screw 311 extending out of the peripheral surface of the epoxy resin base layer 1; the other nut 312 is sleeved on the rod section of the screw 311 extending into the through hole 11 and is fixedly connected with the epoxy resin base layer 1.
Specifically, the number of the locking assemblies 31 may be 3 or more than 3, and as shown in fig. 1 and 2, the number of the locking assemblies 31 may be 4. When locking assembly 31 uses, rotate earlier and loosen the nut 312 that is located epoxy base course 1 periphery face, whole rotation screw rod 311 this moment again, make screw rod 311 take place screw-thread fit between being fixed in nut 312 on the through-hole 11 inner wall, thereby adjusting screw rod 311 stretches into the degree of depth of through-hole 11, adjust the screw rod 311 back, rotate the nut 312 outside epoxy base course 1 periphery face again, make this nut 312 offset with the last contact of epoxy's periphery, thereby fix screw rod 311, accomplish the locking. The locking and fixing mode has the advantages of simple structure, convenience in assembly and disassembly and firmness in use. Of course, the locking component 31 can also be a direct screw 311, which movably extends into the through hole 11 through the outer peripheral surface of the epoxy resin substrate 1 and is in threaded fit with the epoxy resin substrate 1. That is, the epoxy resin substrate 1 is provided with a threaded hole matched with the screw 311, and the adjustment principle is that displacement adjustment is realized through threaded matching. Those skilled in the art can make appropriate changes based on the above without limitation.
The specific application of the transmission coil 100 designed by the present application may be as follows:
for example, as shown in fig. 3, when the transmission coil 100 is installed, the fixing mechanism 3 of the transmission coil 100 may be adjusted to increase the clamping gap in the transmission coil 100, so as to ensure that the transmission coil 100 can be respectively sleeved on the first end and the last end of the insulator string, and then the fixing mechanism 3 is adjusted to enable the end of the screw 311 extending into the through hole 11 to clamp the mandrel of the insulator string, thereby completing installation and fixation.
When in use, the transmission coil 100 as a transmitting coil is connected with the power taking device 300 on the power transmission line through a high-voltage insulated cable to receive electric energy; after receiving the wireless power of the transmission coil 100 serving as a transmitting coil, the transmission coil 100 serving as a receiving coil is converted by the power conversion device and then transmitted to the intelligent monitoring device on the tower 200, where the intelligent monitoring device may include a camera 401, a main chassis 402, a wind speed and direction sensor 403, a tower tilt sensor 404, and the like shown in fig. 3, which is not limited specifically.
In summary, the content of the present specification should not be construed as a limitation to the present application, and a person skilled in the art can easily understand that the present application is not limited to the above description.
Claims (6)
1. A high-voltage wireless power transmission coil, comprising: the coil comprises an epoxy resin base layer, a coil layer, an insulating layer and a fixing mechanism;
the center of the top surface of the epoxy resin base layer is provided with a through hole penetrating through the epoxy resin base layer;
the coil layer is arranged on the top surface of the epoxy resin base layer;
the insulating layer covers the outer surface of the coil layer;
the fixing mechanism is arranged on the epoxy resin base layer and is provided with a plurality of adjustable clamping ends which movably extend into the through holes;
a plurality of the clamping ends form a clamping gap therebetween.
2. The high-voltage wireless electric energy transmission coil as claimed in claim 1, wherein the coil layer is composed of n turns of windings, wherein n is greater than or equal to 2 and is an integer;
and the n turns of windings are spirally distributed around the through hole and are sequentially arranged along the through hole towards the outer peripheral surface direction of the epoxy resin base layer.
3. The wireless transmission coil for high-voltage electric energy according to claim 2, wherein the top surface of the epoxy resin base layer is provided with an interface terminal;
the interface terminal is respectively and electrically connected with the 1 st turn of winding and the nth turn of winding.
4. The wireless transmission coil for high-voltage electric energy according to claim 2, wherein the width of each turn of the winding distributed along the through hole in the direction of the outer peripheral surface of the epoxy resin base layer is gradually increased.
5. The wireless high-voltage power transmission coil according to claim 1, wherein the fixing mechanism is composed of a plurality of locking assemblies;
the locking assemblies are distributed around the circumference of the vertical center line of the through hole and respectively comprise a screw rod and two nuts;
one end of the screw rod movably extends into the through hole through the peripheral surface of the epoxy resin base layer to form the clamping end;
the nut is sleeved on the rod section of the screw rod extending out of the peripheral surface of the epoxy resin base layer;
and the other nut is sleeved on the rod section of the screw rod extending into the through hole and is fixedly connected with the epoxy resin base layer.
6. The high-voltage wireless power transmission coil according to claim 3, wherein the interface terminal is a terminal with an anti-reverse-plugging function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010909057.9A CN112002526B (en) | 2020-09-02 | 2020-09-02 | High-voltage wireless power transmission coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010909057.9A CN112002526B (en) | 2020-09-02 | 2020-09-02 | High-voltage wireless power transmission coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112002526A true CN112002526A (en) | 2020-11-27 |
| CN112002526B CN112002526B (en) | 2021-06-29 |
Family
ID=73465149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010909057.9A Active CN112002526B (en) | 2020-09-02 | 2020-09-02 | High-voltage wireless power transmission coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112002526B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113808814A (en) * | 2021-11-19 | 2021-12-17 | 山东晨宇电气股份有限公司 | Energy-saving short-circuit impact resistant offshore wind power transformer |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015051A (en) * | 2004-09-09 | 2007-08-08 | 株式会社半导体能源研究所 | Radio chip |
| CN103257457A (en) * | 2012-01-26 | 2013-08-21 | 庄臣及庄臣视力保护公司 | Ophthalmic lens assembly having an integrated antenna structure |
| JP2014124018A (en) * | 2012-12-20 | 2014-07-03 | Tdk Corp | Coil unit |
| JP2016004990A (en) * | 2014-06-20 | 2016-01-12 | 日本特殊陶業株式会社 | Resonator |
| CN106130133A (en) * | 2016-08-19 | 2016-11-16 | 深圳市元征科技股份有限公司 | Wireless charging coil module and electronic product thereof |
| CN205945251U (en) * | 2015-08-21 | 2017-02-08 | 苹果公司 | Equipment of induction coil subassembly, induction charging part and preparation induction coil subassembly |
| CN207530574U (en) * | 2017-11-22 | 2018-06-22 | 深圳市立创富五金塑胶有限公司 | A kind of wireless charging device of high heat dissipation |
| CN208752362U (en) * | 2016-08-25 | 2019-04-16 | 株式会社日本显示器 | Electronic equipment and display device |
| CN110323838A (en) * | 2018-03-30 | 2019-10-11 | Tdk株式会社 | Coil unit, wireless power supply, wireless receiving device and Wireless power transmission system |
| CN111091962A (en) * | 2018-10-23 | 2020-05-01 | 丰田自动车株式会社 | Coil unit |
| CN111446072A (en) * | 2019-01-17 | 2020-07-24 | 深圳市百柔新材料技术有限公司 | Wireless charging coil and preparation method thereof |
-
2020
- 2020-09-02 CN CN202010909057.9A patent/CN112002526B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015051A (en) * | 2004-09-09 | 2007-08-08 | 株式会社半导体能源研究所 | Radio chip |
| CN103257457A (en) * | 2012-01-26 | 2013-08-21 | 庄臣及庄臣视力保护公司 | Ophthalmic lens assembly having an integrated antenna structure |
| JP2014124018A (en) * | 2012-12-20 | 2014-07-03 | Tdk Corp | Coil unit |
| JP2016004990A (en) * | 2014-06-20 | 2016-01-12 | 日本特殊陶業株式会社 | Resonator |
| CN205945251U (en) * | 2015-08-21 | 2017-02-08 | 苹果公司 | Equipment of induction coil subassembly, induction charging part and preparation induction coil subassembly |
| CN106130133A (en) * | 2016-08-19 | 2016-11-16 | 深圳市元征科技股份有限公司 | Wireless charging coil module and electronic product thereof |
| CN208752362U (en) * | 2016-08-25 | 2019-04-16 | 株式会社日本显示器 | Electronic equipment and display device |
| CN207530574U (en) * | 2017-11-22 | 2018-06-22 | 深圳市立创富五金塑胶有限公司 | A kind of wireless charging device of high heat dissipation |
| CN110323838A (en) * | 2018-03-30 | 2019-10-11 | Tdk株式会社 | Coil unit, wireless power supply, wireless receiving device and Wireless power transmission system |
| CN111091962A (en) * | 2018-10-23 | 2020-05-01 | 丰田自动车株式会社 | Coil unit |
| CN111446072A (en) * | 2019-01-17 | 2020-07-24 | 深圳市百柔新材料技术有限公司 | Wireless charging coil and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113808814A (en) * | 2021-11-19 | 2021-12-17 | 山东晨宇电气股份有限公司 | Energy-saving short-circuit impact resistant offshore wind power transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112002526B (en) | 2021-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110454335B (en) | Lightning protection system for wind power blade | |
| CN201174264Y (en) | Tubular dielectric bus | |
| CN112002526B (en) | High-voltage wireless power transmission coil | |
| US4158185A (en) | Overhead transmission line with communication core | |
| CN105449874B (en) | High voltage occasion application remote-wireless electric energy transmission coil configuration method | |
| EP3378076B1 (en) | A wireless power transfer system | |
| CN105515000B (en) | The device of AC power frequency supply is obtained in AC high-voltage electric transmission line | |
| CN100449653C (en) | High-pressure insulation core with lining layer | |
| CN208368907U (en) | A kind of marine worker winch slip ring | |
| CN109167407A (en) | A kind of aerial earth wire energy obtaining system | |
| CN211788368U (en) | Sleeve insulator | |
| CN203871092U (en) | Novel sheath structure for improving insulating property of overhead bare conductor | |
| US20210218319A1 (en) | Slip ring assembly | |
| CN105119326B (en) | Electric field overhead transmission line is wireless energy taking device | |
| CN209016398U (en) | A kind of conducting slip ring | |
| CN212624972U (en) | Ultrahigh voltage synthetic insulator structure | |
| CN205509495U (en) | Acquire device that exchanges power frequency power supply in exchanging high tension transmission line | |
| CN216671404U (en) | Coaxial high-voltage film capacitor | |
| CN210517218U (en) | 10kV outdoor single-phase capacitive energy-taking power supply | |
| CN104332258A (en) | Improved high voltage wall bushing | |
| JP2001258183A (en) | Power supply utilizing electrostatic induction | |
| CN212848801U (en) | Short-wave double-layer array log-periodic broadband antenna | |
| CN203166747U (en) | Connecting device used for convertor station high-voltage capacitor and high-voltage side loop tubular bus | |
| CN203827078U (en) | Multiple combined inductive high-voltage transmission line power acquisition and power transformation apparatus | |
| CN214473576U (en) | All-fiber current transformer capable of adjusting measurement precision |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Applicant after: China Southern Power Grid Power Technology Co.,Ltd. Address before: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Applicant before: GUANGDONG ELECTRIC POWER SCIENCE RESEARCH INSTITUTE ENERGY TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |