CN215955493U - High-speed train high-voltage equipment box cable connecting terminal shielding and insulation reinforcing device - Google Patents
High-speed train high-voltage equipment box cable connecting terminal shielding and insulation reinforcing device Download PDFInfo
- Publication number
- CN215955493U CN215955493U CN202122561029.5U CN202122561029U CN215955493U CN 215955493 U CN215955493 U CN 215955493U CN 202122561029 U CN202122561029 U CN 202122561029U CN 215955493 U CN215955493 U CN 215955493U
- Authority
- CN
- China
- Prior art keywords
- plate
- equipment box
- voltage equipment
- speed train
- reinforcing device
- 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
Images
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model discloses a cable connecting terminal shielding and insulation reinforcing device of a high-speed train high-voltage equipment box, which relates to the technical field of reliable power supply of the high-speed train high-voltage equipment box and comprises a bottom plate, the utility model optimizes and controls the electric field strength value near the current conducting plate through the shielding cover, slows down the aging speed of the insulating sheath on the surface of the current conducting plate, the silicon rubber attaching plate with the thickness more than 4mm is additionally arranged on the surface of the current conducting plate with the optimized structure, so that the lightning impulse voltage tolerance level of the air gap between the end part of the cable connector and the wall surface of the box body can be effectively improved, therefore, on the premise of not changing the size of the existing high-voltage equipment box, the electric field intensity of an air area near the end part of the high-voltage fitting of the cable connector is reduced, the aging of the umbrella skirt is delayed, the mounting bolt is shielded, and the local insulation structure is optimized.
Description
Technical Field
The utility model relates to the technical field of reliable power supply of high-speed train high-voltage equipment boxes, in particular to a cable connecting terminal shielding and insulation reinforcing device of a high-speed train high-voltage equipment box.
Background
The high-voltage equipment box of the existing high-speed train is positioned between a pantograph and a traction transformer, equipment such as a cable connector, a vacuum circuit breaker, a lightning arrester and the like are integrated in the box body, and the equipment is connected through a multi-strand cable or a bare metal guide rod.
After a discharge test is carried out on the whole high-voltage equipment box, the corona starting voltage at the end part of the cable connector is low, discharge is easy to develop from the corona starting voltage, the cable connector consists of a porcelain body, a metal guide rod, a metal shell, a matched bolt and the like, the bolt fixes a connecting terminal of the cable connector and a connecting cable end head communicated with a vacuum circuit breaker, measures for increasing the size of the box body can be taken for improving the breakdown voltage value of an air gap in the box body, but the change of the size of the box body can cause the change of a vehicle body structure, the breakdown voltage value between the end part of the cable connector and the air gap of the box body can be improved to a certain extent by directly wrapping the end part of the cable connector, the connecting bolt and the like with an insulating sheath, if the insulating sheath is directly additionally arranged at the end part of a device of the existing high-voltage equipment box, the aging speed of the sheath nearby can be accelerated by strong electric fields at the edge angle of the connecting terminal, the end part of the fixing bolt and the like, the aged sheath is easily broken down, and the broken-down sheath loses the ability to improve the insulation level, so it is necessary to control the electric field strength values of the terminal and the bolt end.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-speed train high-voltage equipment box cable connecting terminal shielding and insulation reinforcing device, which solves the technical problem that equipment in a box body is unsafe to use due to small breakdown voltage value of an air gap between the box bodies.
In order to solve the technical problem, the cable connecting terminal shielding and insulation reinforcing device for the high-voltage equipment box of the high-speed train comprises a bottom plate, wherein a porcelain body is fixed at the upper end of the bottom plate, a metal guide rod is inserted at the upper end of the porcelain body, a metal shell is sleeved at the upper end of the metal guide rod, a shielding cover is fixedly connected at the right end of the metal guide rod through a bolt, and insulation sheaths are arranged on the outer surfaces of the porcelain body, the metal shell and the metal guide rod;
the shielding cover comprises a wrapping ring, and a binding plate is fixed on the surface of the wrapping ring;
the metal guide rod comprises a guide plate, a conductive plate is fixed at the right end of the guide plate, and a conductive rod is fixed at the lower end of the guide plate;
the insulating sheath comprises a sheath body, a connecting plate is arranged at the lower end of the sheath body, and a wired intersection is arranged on the right side of the sheath body.
Preferably, the surface of the current-conducting plate is provided with a fixing hole and a screw rod is arranged in the fixing hole, and the attachment plate and the current-conducting plate are fixed together by the screw rod.
Preferably, the surface of the metal shell is provided with a groove, and the position of the groove is aligned with the conductive plate.
Preferably, a through hole is formed in the porcelain body, the conducting rod is fixed in the through hole, and the bottom of the conducting rod is connected with the bottom plate.
Preferably, the surface of the porcelain body is provided with a fixed notch, and the connecting plate is clamped in the fixed notch.
Preferably, the surface of the conductive plate is connected with the wire by a screw and the wire is pulled out from the wire port.
Compared with the prior art, the high-speed train high-voltage equipment box cable connecting terminal shielding and insulation reinforcing device provided by the utility model has the following beneficial effects:
according to the utility model, the electric field strength value near the current-conducting plate is optimally controlled through the shielding case, the aging speed of the insulating sheath on the surface of the current-conducting plate is slowed down, the silicon rubber attaching plate with the thickness larger than 4mm is additionally arranged on the surface of the current-conducting plate after the structure optimization, the lightning impulse voltage tolerance level of an air gap between the end part of the cable connector and the wall surface of the box body can be effectively improved, so that the electric field strength of the air area near the end part of a high-voltage hardware fitting of the cable connector is reduced on the premise of not changing the size of the existing high-voltage equipment box, the aging of the umbrella skirt is delayed, meanwhile, the mounting bolt is shielded, and the local insulation structure optimization is implemented.
Drawings
FIG. 1 is a main body structure view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a view showing the structure of a metal guide bar according to the present invention;
fig. 4 is a structural view of an insulating sheath according to the present invention.
Reference numbers in the figures: 1. an insulating sheath; 2. a porcelain body; 3. a base plate; 4. a metal shell; 5. a metal guide rod; 6. a shield case; 11. a sleeve body; 12. a connecting plate; 13. a line crossing; 51. a guide plate; 52. a conductive rod; 53. a conductive plate; 61. attaching a plate; 62. and (6) wrapping a ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment is given by figures 1-4, and the utility model comprises a high-speed train high-voltage equipment box cable connecting terminal shielding and insulation reinforcing device, which comprises a bottom plate 3, wherein a porcelain body 2 is fixed at the upper end of the bottom plate 3, a metal guide rod 5 is inserted at the upper end of the porcelain body 2, a metal shell 4 is sleeved at the upper end of the metal guide rod 5, a shielding cover 6 is fixedly connected at the right end of the metal guide rod 5 through a bolt, and an insulation sheath 1 is arranged on the outer surfaces of the porcelain body 2, the metal shell 4 and the metal guide rod 5;
the shielding cover 6 comprises a wrapping ring 62, and a binding plate 61 is fixed on the surface of the wrapping ring 62;
the metal guide rod 5 comprises a guide plate 51, a conductive plate 53 is fixed at the right end of the guide plate 51, and a conductive rod 52 is fixed at the lower end of the guide plate 51;
the insulating sheath 1 comprises a sheath body 11, a connecting plate 12 is arranged at the lower end of the sheath body 11, and a wire intersection 13 is arranged on the right side of the sheath body 11.
The working principle is as follows:
the line crossing that will connect gets into set internal portion, rotates the screw rod on conducting plate surface afterwards, makes the gap increase between attaching plate and the conducting plate, fixes the copper wire on circuit surface on the conducting plate surface, and the screw rod is rotated in the opposite direction then conducting plate and attaching plate extrude each other and fix the circuit on the conducting plate surface, overlaps the metal shell on the surface of metal guide arm, fixes insulating sheath on the surface of porcelain body at last.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The high-speed train high-voltage equipment box cable connection terminal shielding and insulation reinforcing device comprises a bottom plate (3), wherein a porcelain body (2) is fixed at the upper end of the bottom plate (3), a metal guide rod (5) is inserted into the upper end of the porcelain body (2), and a metal shell (4) is sleeved at the upper end of the metal guide rod (5), and is characterized in that a shielding cover (6) is fixedly connected to the right end of the metal guide rod (5) through a bolt, and an insulation sheath (1) is arranged on the outer surfaces of the porcelain body (2), the metal shell (4) and the metal guide rod (5);
the shielding case (6) comprises a wrapping ring (62), and a jointing plate (61) is fixed on the surface of the wrapping ring (62);
the metal guide rod (5) comprises a guide plate (51), a conductive plate (53) is fixed at the right end of the guide plate (51), and a conductive rod (52) is fixed at the lower end of the guide plate (51);
the insulating sheath (1) comprises a sheath body (11), a connecting plate (12) is arranged at the lower end of the sheath body (11), and a wire port (13) is arranged on the right side of the sheath body (11).
2. The high-speed train high-voltage equipment box cable connection terminal shielding and insulation reinforcing device according to claim 1, wherein a fixing hole is formed in a surface of the conductive plate (53) and a screw is formed inside the fixing hole, and the screw fixes the attachment plate (61) and the conductive plate (53) together.
3. A high-speed train high-voltage equipment box cable connection terminal shielding and insulation reinforcing device according to claim 1, wherein the surface of the metal shell (4) is provided with a groove and the position of the groove is aligned with the conductive plate (53).
4. The high-speed train high-voltage equipment box cable connection terminal shielding and insulation reinforcing device is characterized in that a through hole is formed in the porcelain body (2), a conductive rod (52) is fixed in the through hole, and the bottom of the conductive rod (52) is connected with the bottom plate (3).
5. The high-voltage equipment box cable connection terminal shielding and insulation reinforcing device for the high-speed trains according to claim 1, wherein the surface of the porcelain body (2) is provided with a fixing notch, and the connecting plate (12) is clamped inside the fixing notch.
6. The high-speed train high-voltage equipment box cable connection terminal shielding and insulation reinforcing device according to claim 5, wherein a surface of the conductive plate (53) is connected with a line by a screw and the line is pulled out from the line port (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122561029.5U CN215955493U (en) | 2021-10-21 | 2021-10-21 | High-speed train high-voltage equipment box cable connecting terminal shielding and insulation reinforcing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122561029.5U CN215955493U (en) | 2021-10-21 | 2021-10-21 | High-speed train high-voltage equipment box cable connecting terminal shielding and insulation reinforcing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215955493U true CN215955493U (en) | 2022-03-04 |
Family
ID=80410824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122561029.5U Active CN215955493U (en) | 2021-10-21 | 2021-10-21 | High-speed train high-voltage equipment box cable connecting terminal shielding and insulation reinforcing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215955493U (en) |
-
2021
- 2021-10-21 CN CN202122561029.5U patent/CN215955493U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110729684B (en) | Ultra/extra-high voltage SF6Gas insulation wall bushing and insulation supporting structure thereof | |
| CN215955493U (en) | High-speed train high-voltage equipment box cable connecting terminal shielding and insulation reinforcing device | |
| CN1007098B (en) | Gas protecting cover | |
| CN102957122A (en) | Solid insulated sleeve with inserting type connection | |
| CN203481034U (en) | Open type current transformer | |
| CN107345974B (en) | A kind of novel test operation junction pole | |
| CN107481817A (en) | Utilize the lower electric discharge part in elastic conduction coil reset discharge gap | |
| CN205724703U (en) | A kind of cable ledge | |
| CN201247663Y (en) | Whole insulation composite greatcoat type metal-oxide lighting arrester core body | |
| CN209641511U (en) | A kind of current transformer preventing suspended voltage | |
| CN201345261Y (en) | Overhead insulated conductor lightning protection hardware | |
| CN112397911A (en) | Copper belt type short circuit grounding wire | |
| CN107610832B (en) | Submarine cable with ultralow thermal resistance loss and preparation method thereof | |
| CN207800181U (en) | It is lightning-arrest to draw lower cable | |
| CN203660276U (en) | Gap lightning protection device | |
| CN209804357U (en) | Lightning protection equipment for overhead line | |
| CN109599214A (en) | A kind of wear-resisting letter electric control electric wire of high temperature resistant vehicle | |
| CN213752148U (en) | Novel lightning protection ceramic insulator | |
| CN207624461U (en) | A kind of lightning protection pillar insulator with shielding case | |
| CN108231300A (en) | A kind of parallel connection clearance device of anti-thunder insulator | |
| CN214280429U (en) | 500kV discharge gap device | |
| CN207896663U (en) | A kind of lower electric discharge part with elastic conduction coil | |
| CN107359025A (en) | Utilize the lightning protection pillar insulator of elastic conduction coil increase discharging gap | |
| CN110120642B (en) | Sleeve wiring device and power transmission equipment | |
| CN215815408U (en) | Microcrystal ceramic insulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |