CN113659371B - Electric connection structure for improving operation reliability of sleeve - Google Patents
Electric connection structure for improving operation reliability of sleeve Download PDFInfo
- Publication number
- CN113659371B CN113659371B CN202110931917.3A CN202110931917A CN113659371B CN 113659371 B CN113659371 B CN 113659371B CN 202110931917 A CN202110931917 A CN 202110931917A CN 113659371 B CN113659371 B CN 113659371B
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- CN
- China
- Prior art keywords
- improving
- control assembly
- connection structure
- response control
- way response
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/04—Pins or blades for co-operation with sockets
-
- 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
- H01F27/02—Casings
- H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
- H01R13/17—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member on the pin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application relates to an electric connection structure for improving the operation reliability of a sleeve, which comprises the following components: the connecting male head comprises a main conductor body, a plurality of watchband contact finger annular grooves which are arranged on the main conductor body and used for arranging watchband contact fingers, and a three-way response control assembly mounting hole which is provided with the three-way response control assembly, wherein the connecting female head is provided with an axial groove at a position corresponding to the three-way response control assembly mounting hole, and the three-way response controller is clamped in the axial groove under the action of the elastic element. The electric connection structure for improving the operation reliability of the sleeve provided by the application controls or reduces the relative displacement between the male connection head and the female connection head in three directions through the three-way response control assembly arranged between the male connection head and the female connection head, ensures the reliable electric contact between the watchband contact finger and the female connection head, and improves the reliability of the electric connection structure.
Description
Technical Field
The application relates to the technical field of transformer bushing electric connection structures, in particular to an electric connection structure for improving the operation reliability of a bushing.
Background
In recent years, a plurality of firing accidents of the extra-high voltage converter transformer occur, the firing is rapid, the burning time is long, the fire passing area is large, and the generated firing accidents not only affect the normal operation of a power grid, but also cause serious economic loss.
When the extra-high voltage converter transformer with the fire burning accident is subjected to field inspection, the accident is found to be directly related to the current carrying failure of the sleeve electric connection structure in the extra-high voltage converter transformer. Researches show that the failure of the sleeve electric connection structure can cause abnormal phenomena such as overheating and discharge faults, and the high-capacity converter transformer has the characteristics of large load current, high harmonic component, strong mechanical vibration, high operating temperature and the like, and the load current is more than 5000A and is far higher than the load current of a common power transformer. The bushing operates under the current-carrying condition of high current, and when the bushing electrical connection structure fails, the high-capacity converter transformer is likely to be ignited and exploded. Therefore, the operation reliability of the bushing electric connection structure has important significance for the normal and stable operation of the high-capacity converter transformer.
The power equipment inevitably has factors which are unfavorable for the operation of the power equipment such as power frequency vibration, temperature change, electromagnetic excitation and the like under the working condition, and the large-capacity converter transformer also has factors which are unfavorable for the operation of the large-capacity converter transformer, and the adverse factors can further cause the relative displacement between the electric connection structural components of the watchband contact fingers in the sleeve, and the specific expression is as follows: the connecting male head deflects or the center of the connecting male head and the center of the connecting female head are not aligned under the action of gravity; and the male connector and the female connector are axially and relatively displaced under the temperature effect. These phenomena all easily lead to the change of the contact resistance of the watchband contact finger electric connection structure, and then lead to the current carrying failure, and reduce the operation reliability of the sleeve electric connection structure.
Disclosure of Invention
The application provides an electric connection structure for improving the operation reliability of a sleeve, which aims to solve the problem that the contact resistance of a watchband contact finger electric connection structure is changed due to the fact that relative displacement is generated between parts of the watchband contact finger electric connection structure in the sleeve when the traditional sleeve operates.
The technical scheme adopted by the application for solving the technical problems is as follows:
the utility model provides an electric connection structure for improving sleeve pipe operational reliability, is in including connecting public head, three-dimensional response control assembly, watchband touch finger, cover and establish connect female head on the public head, three-dimensional response control assembly includes three-dimensional response controller and elastic element, connect public head including main conductor body, follow the axial of main conductor body sets up a plurality of watchbands on the main conductor body touch finger annular groove, set up a plurality of three-dimensional response control assembly mounting holes of main conductor body first end, three-dimensional response control assembly mounting hole include radial mounting hole and with the axial mounting hole of radial mounting hole intercommunication, connect female head in with the corresponding position of axial mounting hole is provided with axial recess, the watchband touch finger sets up in the watchband touches finger annular groove, elastic element sets up in the radial mounting hole, three-dimensional response controller sets up in the axial mounting hole, three-dimensional response controller is in the effect of elastic element is blocked and is established in the axial recess.
Further, the first end of the main body is provided with four three-way response control assembly mounting holes, and the three-way response control assembly mounting holes are uniformly distributed along the circumferential direction of the main body.
Further, a rubber cushion block is arranged in the axial groove.
Further, the surface of the three-way response control component mounting hole is provided with an insulating coating.
Further, the surface of the three-way response control component is provided with an insulating coating.
Further, an insulating coating is arranged on the inner wall of the axial groove.
Further, the three-way response controller is made of metal.
Further, the main conductor body is made of red copper.
Further, the depth of the watch band contact finger ring-shaped groove is 2mm.
Furthermore, the material of the watchband contact finger is copper-based silver plating, and the installation angle deviation is +/-2 degrees.
The technical scheme provided by the application has the following beneficial technical effects:
the electric connection structure for improving the operation reliability of the sleeve provided by the application comprises the following components: the connecting male head comprises a main conductor body, a plurality of watchband contact finger annular grooves arranged on the main conductor body along the axial direction of the main conductor body, and a three-way response control assembly mounting hole arranged at the first end of the main conductor body, wherein the three-way response control assembly mounting hole comprises a radial mounting hole and an axial mounting hole communicated with the radial mounting hole, the connecting female head is provided with an axial groove at a position corresponding to the axial mounting hole, watchband contact fingers are arranged in the watchband contact finger annular grooves and are in contact with the inner wall of the connecting male head, the elastic element is arranged in the radial mounting hole, and the three-way response controller is arranged in the axial mounting hole and is clamped in the axial groove under the action of the elastic element. According to the electric connection structure for improving the operation reliability of the sleeve, the three-way response control assembly arranged between the male connection head and the female connection head is used for controlling or reducing the relative displacement between the male connection head and the female connection head in three directions, so that the reliable electric contact between the watchband contact finger and the female connection head is ensured, and the reliability of the electric connection structure is improved.
Drawings
FIG. 1 is a schematic view of an electrical connection structure for improving the operation reliability of a bushing according to a first embodiment of the present application;
fig. 2 is a schematic diagram of a first embodiment of a connection male structure according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a first embodiment of a connection female according to an embodiment of the present application;
FIG. 4 is a schematic view illustrating the installation of an electrical connection structure for improving the operation reliability of a bushing according to a first embodiment of the present application;
fig. 5 is a schematic installation diagram of an electrical connection structure for improving operation reliability of a bushing according to a second embodiment of the present application.
Reference numerals illustrate: the three-dimensional sensing device comprises a male connector 1-connected, a three-dimensional response control component 2-connected, a watchband contact finger 3-connected, a female connector 4-connected, a main conductor body 11-connected, a watchband contact finger annular groove 12-connected, a three-dimensional response control component mounting hole 13-connected, a main conductor body first end 14-connected, a radial mounting hole 15-connected, a radial mounting hole 16-connected, a three-dimensional response controller 21-connected, a flexible element 22-connected, a flexible element 41-connected, and a cushion block 42-connected.
Detailed Description
In order to facilitate description and understanding of the technical solutions of the application, some concepts related to the present application will be described below first.
The transformer bushing is the main insulation device outside the transformer box, and the outgoing lines of the transformer winding must pass through the insulation bushing, so that the outgoing lines are insulated from each other and the outgoing lines are insulated from the transformer shell, and the transformer bushing plays a role in fixing the outgoing lines.
Referring to fig. 1, a schematic electrical connection structure for improving operation reliability of a bushing according to a first embodiment of the present application is provided. As shown in fig. 1, the electrical connection structure for improving the operational reliability of the bushing includes: the connecting male head 1, a connecting female head 4 sleeved on the connecting male head 1, watchband contact fingers 3 and a three-way response control assembly 2 for controlling relative displacement between the connecting male head 1 and the connecting female head 4, wherein the connecting female head 4 is of a cylindrical structure corresponding to the shape of the connecting male head 1.
Referring to fig. 2, a schematic structural diagram of a first embodiment of a connection male according to an embodiment of the present application is provided. As shown in fig. 2, the connection male 1 includes a main guide body 11, a plurality of band-contact finger annular grooves 12 provided at a central portion of the main guide body 11 in an axial direction of the main guide body 11, a plurality of three-way response control assembly mounting holes 13 provided at a first end 14 of the main guide body, the three-way response control assembly mounting holes 13 including radial mounting holes 15 and axial mounting holes 16 communicating with the radial mounting holes 15, and the three-way response control assembly 2 including a three-way response controller 21 and an elastic member 22.
Specifically, the material of the main conductor body 11 may be selected from red copper. The number of the watchband contact finger annular grooves 12 is determined according to the current carrying requirement of the electric connection structure, the depth is 2mm, the watchband contact finger 3 is required to be matched with the type of the selected watchband contact finger 3, the watchband contact finger 3 is arranged in the watchband contact finger annular grooves 12 and is a key component for carrying current of the electric connection structure, a multi-layer product of STAUBII company can be adopted, different types are selected according to the use scene of the watchband contact finger electric connection structure, and the allowable installation angle deviation of the watchband contact finger 3 is +/-2 degrees, and the material is copper-based silver plating. The three-way response control assembly mounting holes 13 formed by the radial mounting holes 15 and the axial mounting holes 16 are uniformly distributed along the circumferential direction of the first end 14 of the main conductor body, four identical three-way response control assembly mounting holes 13 which are positioned on the same cross section of the first end 14 of the main conductor body can be selectively arranged, and the inner wall surface of each three-way response control assembly mounting hole 13 is provided with an insulating coating, wherein the radial mounting holes 15 are arranged along the radial direction of the main conductor body 11, the shape of the radial mounting holes corresponds to the shape of the elastic element 22, and the axial mounting holes 16 are arranged along the axial direction of the main conductor body 11, and the shape of the axial mounting holes corresponds to the shape of the three-way response controller 21. The elastic element 22 is arranged in the radial mounting hole 15, a coil spring can be selected as the elastic element 22, the three-way response controller 21 is arranged in the axial mounting hole 16, the surfaces of the three-way response controller 21 and the elastic element 22 are coated with insulating materials, and the three-way response controller 21 can be made of metal materials with higher rigidity.
Referring to fig. 3, a schematic cross-sectional structure of a first embodiment of a connection female according to an embodiment of the present application is shown. As shown in fig. 3, the connection female 4 is provided with four axial grooves 41 uniformly distributed in the circumferential direction at the positions of the inner wall corresponding to the axial mounting holes 16, and the inner wall of the axial grooves 41 is also provided with an insulating coating.
Referring to fig. 4, an installation schematic diagram of an electrical connection structure for improving operation reliability of a bushing according to a first embodiment is provided. As shown in fig. 4, the connection female 4 is sleeved on the connection male 1, and the watchband contact finger 3 is arranged in the watchband contact finger annular groove 12 and is contacted with the inner wall of the connection female 4; the three-way response controller 21 in the three-way response control assembly 2 is partially clamped in the axial groove 41 under the action of the elastic element 22, so that the relative displacement between the connecting male head 1 and the connecting female head 4 in three directions can be controlled or reduced, the three-way response controller 21 is made of a metal material with higher rigidity, the situation that the connecting male head 1 and the connecting female head 4 cannot generate larger relative displacement due to abrasion or damage of the three-way response controller 21 in a long-term working state can be ensured, and the reliability and the stability of connection between the two are ensured.
Referring to fig. 5, an installation schematic diagram of an electrical connection structure for improving operation reliability of a bushing according to a second embodiment of the present application is provided. Unlike the electrical connection structure of the first embodiment for improving the operational reliability of the bushing, the electrical connection structure of the second embodiment for improving the operational reliability of the bushing is provided with a cushion block in the axial groove 41, the cushion block may be a rubber cushion block 42, and the rubber cushion block 42 may be provided, so that on one hand, the gap between the three-way response controller 21 and the axial groove 41 may be further reduced, and on the other hand, the relative displacement between the connection male head 1 and the connection female head 4 may be better controlled, and on the other hand, the loss of insulating paint may be reduced, and further the operational reliability and stability of the electrical connection structure may be ensured.
According to the electric connection structure for improving the operation reliability of the sleeve, the three-way response control assembly 2 is arranged between the connecting male head 1 and the connecting female head 4 so as to control or reduce the relative displacement between the connecting male head 1 and the connecting female head 4 in three directions, so that the reliable electric contact between the watchband contact finger 3 and the connecting female head 4 is ensured, and the reliability of the electric connection structure is improved.
The above description is only a preferred embodiment of the present application, and is not intended to limit the present application in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present application fall within the protection scope of the present application.
Claims (10)
1. An electric connection structure for improving the operation reliability of a sleeve is characterized by comprising a connection male head (1), a three-way response control assembly (2), a watchband contact finger (3) and a connection female head (4) sleeved on the connection male head (1), wherein the three-way response control assembly (2) comprises a three-way response controller (21) and an elastic element (22), the connection male head (1) comprises a main conductor body (11), a plurality of watchband contact finger annular grooves (12) which are arranged on the main conductor body (11) along the axial direction of the main conductor body (11), a plurality of watchband contact finger annular grooves (12) which are arranged at the first end (14) of the main conductor body, a plurality of three-way response control assembly mounting holes (13) which are arranged at the first end (14) of the main conductor body, the three-way response control assembly mounting holes (13) comprise radial mounting holes (15) and axial mounting holes (16) which are communicated with the radial mounting holes (15), the connection female head (4) is provided with an axial groove (41) at a position corresponding to the axial mounting holes (16), the watchband contact finger (3) is arranged in the watchband contact finger annular grooves (12), the elastic element (22) is arranged in the radial direction response control hole (21), the three-way response controller (21) is clamped in the axial groove (41) under the action of the elastic element (22).
2. The electrical connection structure for improving operational reliability of a bushing according to claim 1, wherein the main body first end (14) is provided with four three-way response control assembly mounting holes (13), and the three-way response control assembly mounting holes (13) are uniformly distributed along the circumferential direction of the main body (11).
3. The electrical connection for improving the operational reliability of a bushing according to claim 1, characterized in that a rubber spacer is provided in the axial groove (41).
4. Electrical connection structure for improving the operational reliability of bushings according to claim 1 or 2, characterized in that the surface of the three-way response control assembly mounting hole (13) is provided with an insulating coating.
5. The electrical connection structure for improving the operational reliability of a bushing according to claim 1, characterized in that the surface of the three-way response control assembly (2) is provided with an insulating coating.
6. Electrical connection structure for improving the operational reliability of bushings according to claim 1, characterized in that the inner wall of the axial groove (41) is provided with an insulating coating.
7. The electrical connection structure for improving operational reliability of a bushing according to claim 1, wherein the material of the three-way response controller (21) is a metallic material.
8. Electrical connection structure for improving the operational reliability of bushings according to claim 1, characterized in that the material of the main conductor body (11) is red copper.
9. The electrical connection for improving the operational reliability of bushings according to claim 1, characterized in that the depth of the band contact annular groove (12) is 2mm.
10. The electrical connection for improving the operational reliability of bushings according to claim 1, characterized in that the material of the watchband contact fingers (3) is copper-based silver-plated and the installation angle deviation is ±2°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110931917.3A CN113659371B (en) | 2021-08-13 | 2021-08-13 | Electric connection structure for improving operation reliability of sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110931917.3A CN113659371B (en) | 2021-08-13 | 2021-08-13 | Electric connection structure for improving operation reliability of sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113659371A CN113659371A (en) | 2021-11-16 |
| CN113659371B true CN113659371B (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110931917.3A Active CN113659371B (en) | 2021-08-13 | 2021-08-13 | Electric connection structure for improving operation reliability of sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113659371B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3970355A (en) * | 1973-05-15 | 1976-07-20 | Spinner Gmbh, Elektrotechnische Fabrik | Coaxial cable fitting |
| JP2001093741A (en) * | 1999-09-20 | 2001-04-06 | Daihen Corp | Transformer and bushing for the transformer |
| CN102412053A (en) * | 2010-09-21 | 2012-04-11 | 江苏思源赫兹互感器有限公司 | Capacitive transformer bushing |
| CN103344792A (en) * | 2013-06-28 | 2013-10-09 | 国家电网公司 | End screen downwards leading structure for monitoring transformer sleeve |
| CN203983666U (en) * | 2014-08-15 | 2014-12-03 | 上海航天科工电器研究院有限公司 | A kind of radio frequency (RF) coaxial connector floating structure |
| WO2017085005A1 (en) * | 2015-11-17 | 2017-05-26 | Phoenix Contact E-Mobility Gmbh | Contact element having a contact lamella arranged in a contact body |
| CN206894179U (en) * | 2017-05-31 | 2018-01-16 | 河南森源电气股份有限公司 | A kind of plug-in insulated sleeve component and gas-filling cabinet |
| CN207994541U (en) * | 2018-01-09 | 2018-10-19 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of current-carrying connection structure being exclusively used in HVDC Wall Bushing end |
| CN110247206A (en) * | 2019-05-07 | 2019-09-17 | 山东泰开电缆有限公司 | Attachment device for insulating tube type busbar end |
| CN111312495A (en) * | 2020-04-17 | 2020-06-19 | 广东电网有限责任公司 | Watchband contact finger connecting piece |
-
2021
- 2021-08-13 CN CN202110931917.3A patent/CN113659371B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3970355A (en) * | 1973-05-15 | 1976-07-20 | Spinner Gmbh, Elektrotechnische Fabrik | Coaxial cable fitting |
| JP2001093741A (en) * | 1999-09-20 | 2001-04-06 | Daihen Corp | Transformer and bushing for the transformer |
| CN102412053A (en) * | 2010-09-21 | 2012-04-11 | 江苏思源赫兹互感器有限公司 | Capacitive transformer bushing |
| CN103344792A (en) * | 2013-06-28 | 2013-10-09 | 国家电网公司 | End screen downwards leading structure for monitoring transformer sleeve |
| CN203983666U (en) * | 2014-08-15 | 2014-12-03 | 上海航天科工电器研究院有限公司 | A kind of radio frequency (RF) coaxial connector floating structure |
| WO2017085005A1 (en) * | 2015-11-17 | 2017-05-26 | Phoenix Contact E-Mobility Gmbh | Contact element having a contact lamella arranged in a contact body |
| CN206894179U (en) * | 2017-05-31 | 2018-01-16 | 河南森源电气股份有限公司 | A kind of plug-in insulated sleeve component and gas-filling cabinet |
| CN207994541U (en) * | 2018-01-09 | 2018-10-19 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of current-carrying connection structure being exclusively used in HVDC Wall Bushing end |
| CN110247206A (en) * | 2019-05-07 | 2019-09-17 | 山东泰开电缆有限公司 | Attachment device for insulating tube type busbar end |
| CN111312495A (en) * | 2020-04-17 | 2020-06-19 | 广东电网有限责任公司 | Watchband contact finger connecting piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113659371A (en) | 2021-11-16 |
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