CN215183446U

CN215183446U - High-voltage air-core reactor multi-tap external arrangement structure

Info

Publication number: CN215183446U
Application number: CN202121504585.2U
Authority: CN
Inventors: 李霞; 廖军红; 胥军; 周扬; 易吉良
Original assignee: Sunten Electric Equipment Co ltd
Current assignee: Sunten Electric Equipment Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-12-14
Anticipated expiration: 2031-07-01

Abstract

The utility model provides a high-pressure air-core reactor takes a percentage external arrangement structure more, including high-voltage coil, coil connecting element, punch holder subassembly, lower plate subassembly, the connection pad, the conducting rod, insulating sleeve and insulating assembly, high-voltage coil presss from both sides and locates between punch holder subassembly and the lower plate subassembly, coil connecting element installs on high-voltage coil, the one end of conducting rod is installed on coil connecting element, insulating sleeve is connected to the other end, insulating sleeve fixed mounting is on the connection pad, the connection pad passes through insulating assembly to be fixed on punch holder subassembly and lower plate subassembly, punch holder subassembly and lower plate subassembly pass through fastening components interconnect, the periphery cover of conducting rod is equipped with a plurality of layers of high-pressure pyrocondensation pipe. The utility model discloses effectively solved high voltage, take a percentage air-core reactor tolerance voltage and required high, spatial layout is difficult, the little difficult problem in assembly space, can realize the multi-capacity service function, this arrangement structure has novel structure, compressive property is good, occupation space is little, the characteristics that the practicality is strong.

Description

High-voltage air-core reactor multi-tap external arrangement structure

Technical Field

The utility model relates to an air-core reactor, in particular to high pressure air-core reactor takes a percentage external arrangement structure more.

Background

The conventional air reactor coil is bound and fixed by an upper star frame and a lower star frame by using an insulating drawstring, the coil manufacturing mode generally adopts a dry winding method rolling immersion process or a vertical winding method wet winding process, and because the high-voltage multi-tap air reactor has high voltage tolerance requirement, high creepage distance requirement and more tapping outgoing lines, the volume of the air reactor manufactured by adopting the process needs to be very large if the multi-tap outgoing line structure is to be realized, so that the volume of the air reactor can be ultra-wide and ultra-high, and the structure of the air reactor becomes very complex; therefore, the conventional dry winding method rolling dipping process or the vertical winding method wet winding process is difficult to realize a multi-tap structure.

Therefore, further improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compact structure novelty, installation area are little, light in weight, radiating effect are good, can realize the high-pressure air core reactor of multi-capacity service, practicality are strong take a percentage external arrangement structure more to overcome prior art crow's voltage, take a percentage air core reactor product production size super wide superelevation, installation space is not enough, product structure is complicated weak point.

According to the external arrangement structure of taking a percentage more of high-pressure air-core reactor that this purpose designed, including high-voltage coil, its characterized in that: the high-voltage coil comprises a coil connecting element, an upper clamping plate assembly, a lower clamping plate assembly, a connecting disc, a conductive rod, an insulating sleeve and an insulating assembly, wherein the high-voltage coil is clamped between the upper clamping plate assembly and the lower clamping plate assembly, the coil connecting element is installed on the high-voltage coil, one end of the conductive rod is installed on the coil connecting element, the other end of the conductive rod is connected with the insulating sleeve, the insulating sleeve is fixedly installed on the connecting disc, the connecting disc is fixed on the upper clamping plate assembly and the lower clamping plate assembly through the insulating assembly, the upper clamping plate assembly and the lower clamping plate assembly are mutually connected through a fastening assembly, and a plurality of layers of high-voltage heat-shrinkable tubes are sleeved on the periphery of the conductive rod.

The upper clamp plate assembly comprises an upper clamp plate and an upper cushion block, the lower clamp plate assembly comprises a lower clamp plate and a lower cushion block, the upper cushion block is installed on the upper clamp plate, the lower cushion block is installed on the lower clamp plate, and the high-voltage coil is clamped between the upper cushion block and the lower cushion block.

The limiting grooves are formed in the peripheries of the upper cushion block and the lower cushion block, counter bores are formed in the peripheries of the upper clamping plate and the lower clamping plate, limiting nails are mounted on the counter bores, and the limiting nails are connected with the limiting grooves.

The fastening assembly comprises a clamping screw and a clamping nut, the clamping screw sequentially penetrates through the upper clamping plate, the upper cushion block, the high-voltage coil, the lower cushion block and the lower clamping plate, and two ends of the clamping screw are respectively locked on the upper clamping plate and the lower clamping plate through the clamping nut, so that the connection of the upper clamping plate assembly, the lower clamping plate assembly and the high-voltage coil is realized; the periphery of the clamping screw is sleeved with a high-pressure heat-shrinkable tube.

And a hoisting plate for hoisting the high-voltage air-core reactor is installed at the top of the upper clamping plate, and an insulator is installed at the bottom of the lower clamping plate.

The coil connecting element is a connecting nut, a boss is arranged on one side of the high-voltage coil, the connecting nut is integrally cast on the boss, and one end of the conductive rod is locked on the connecting nut; the periphery of the connecting nut is sleeved with a plurality of layers of high-pressure heat-shrinkable tubes.

The insulating assembly comprises a reinforcing plate and a supporting plate, the reinforcing plate is installed on the supporting plate, a connecting disc is fixedly installed on the reinforcing plate, and the supporting plate is fixed on the upper clamping plate and the lower clamping plate through fasteners.

The high-voltage coil is a multi-tap coil, the upper clamping plate, the lower clamping plate, the connecting disc, the reinforcing plate and the supporting plate are formed by cutting an epoxy laminated glass cloth plate, and the conducting rod is formed by welding a copper rod and a copper plate.

The clamping screw, the limiting nail and the lifting plate are made of non-magnetic materials, and the upper cushion block and the lower cushion block are resin insulation cushion blocks.

The high-voltage coil is formed by vacuum casting of epoxy resin.

The utility model discloses a high-pressure coil of high-pressure air-core reactor is formed with epoxy vacuum casting, utilize the punch holder, upper and lower cushion, the stop pin, it is whole that clamping screw makes the reactor form a rigidity, the connection pad of external arrangement utilizes reinforcing plate and the backup pad of epoxy preparation to fix on the punch holder, binding post utilizes the conducting rod, the insulating sleeve switching, and utilize high-pressure pyrocondensation pipe to be insulation treatment to withstand voltage weak position, high voltage has been solved, it is high to take a percentage hollow reactor withstand voltage requirement more, spatial layout is difficult, the small difficult problem in assembly space, this arrangement structure has novel structure, high pressure resistance, the installation takes up an area of the space little, light in weight, the characteristics that the suitability is strong.

Drawings

Fig. 1 is a front view of a high-voltage air-core reactor according to an embodiment of the present invention.

Fig. 2 is a top view of a high-voltage air-core reactor according to an embodiment of the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-3, the high-voltage hollow reactor multi-tap external arrangement structure is suitable for a vacuum casting hollow reactor multi-tap high-voltage coil 1, and comprises a high-voltage coil 1, a coil connecting element, an upper clamping plate assembly, a lower clamping plate assembly, a connecting disc 2, a conductive rod 3, an insulating sleeve 4 and an insulating assembly, wherein the high-voltage coil 1 is clamped between the upper clamping plate assembly and the lower clamping plate assembly, the coil connecting element is installed on the high-voltage coil 1, one end of the conductive rod 3 is installed on the coil connecting element, the other end of the conductive rod is connected with the insulating sleeve 4, the insulating sleeve 4 is fixedly installed on the connecting disc 2, the connecting disc 2 is fixed on the upper clamping plate assembly and the lower clamping plate assembly through the insulating assembly, the upper clamping plate assembly and the lower clamping plate assembly are connected with each other through a fastening assembly, and four layers of high-voltage heat-shrinkable tubes 5 are sleeved on the periphery of the conductive rod 3. The casting mold of the high-voltage coil 1 adopts the existing dry-to-vacuum casting mold of a dry-type transformer, the outer diameter of the high-voltage coil 1 is not more than 1575mm, the height of a single coil can be determined according to the size of the total inductance value and the tapping quantity, the whole high-voltage coil is formed by vacuum casting of epoxy resin, and the high-voltage coil 1 adopts a multi-tap wire outlet structure mode and an epoxy resin thin insulation vacuum casting process without filler; the conducting rod 3 is designed in a matched mode according to the actual installation position of the insulating sleeve 4 and the diameter of the copper conducting rod of the sleeve, the conducting rod 3 is subjected to special insulating wrapping treatment by the aid of the high-voltage heat-shrinkable tube 5, the voltage-resistant weak portion of the conducting rod is prevented from being damaged due to high voltage bearing, and the conducting rod 3 is connected with the insulating sleeve 4 in a switching mode to serve as a wiring terminal.

The upper clamp plate assembly comprises an upper clamp plate 6 and an upper cushion block 7, the lower clamp plate assembly comprises a lower clamp plate 8 and a lower cushion block 9, the upper cushion block 7 is installed on the upper clamp plate 6, the lower cushion block 9 is installed on the lower clamp plate 8, and the high-voltage coil 1 is clamped between the upper cushion block 7 and the lower cushion block 9.

Limiting grooves are formed in the peripheries of the upper cushion block 7 and the lower cushion block 9, counter bores are formed in the peripheries of the upper clamping plate 6 and the lower clamping plate 8, limiting nails 10 are mounted on the counter bores, and the limiting nails 10 are connected with the limiting grooves; the limiting nail 10 can limit the upper cushion block 7 and the lower cushion block 9, so that the product is prevented from vibrating and shifting, and the stability of the whole structure of the coil is ensured.

The fastening assembly comprises a clamping screw and a clamping nut 11, the clamping screw sequentially penetrates through the upper clamping plate 6, the upper cushion block 7, the high-voltage coil 1, the lower cushion block 9 and the lower clamping plate 8, the upper end and the lower end of the clamping screw are respectively locked on the upper clamping plate 6 and the lower clamping plate 8 through the clamping nut 11, and the connection of the upper clamping plate assembly, the lower clamping plate assembly and the high-voltage coil 1 is realized; the periphery of the clamping screw is sleeved with a high-voltage heat-shrinkable tube 5, and the high-voltage heat-shrinkable tube 5 can improve the voltage endurance of the clamping screw and prevent discharge between the clamping screw and the high-voltage coil 1.

And a hoisting plate 12 for hoisting the high-voltage air-core reactor is arranged at the top of the upper clamping plate 6, the upper end of the clamping screw penetrates through the hoisting plate 12 and is locked by a clamping nut 11, and an insulator 13 is arranged at the bottom of the lower clamping plate 8.

The coil connecting element is a connecting nut 14, a boss 1.1 is arranged on one side of the high-voltage coil 1, the connecting nut 14 is integrally cast on the boss 1.1, the connecting nuts 14 are distributed on the high-voltage coil 1 up and down, left and right according to a conventional dry-variant tapping nut distribution mode, and one end of the conductive rod 3 is locked on the connecting nut 14; the periphery of the connecting nut 14 is sleeved with four layers of high-pressure heat-shrinkable tubes 5. When the conducting rod 3 is wrapped by the high-voltage heat-shrinkable tube 5 in an insulating mode, the two layers of high-voltage heat-shrinkable tubes 5 are sleeved on the root portion of the conducting rod 3 to the periphery of the conducting rod 3 and the periphery of the connecting nut 14, and the two layers of high-voltage heat-shrinkable tubes 5 are sleeved on the root portion of the connecting nut 14 to the periphery of the connecting nut 14 and the periphery of the conducting rod 3.

The insulation assembly comprises a reinforcing plate 15 and a supporting plate 16, wherein the reinforcing plate 15 is installed on the supporting plate 16, the connecting disc 2 is fixedly installed on the reinforcing plate 15, and the supporting plate 16 is fixed on the upper clamping plate 6 and the lower clamping plate 8 through fasteners.

The high-voltage coil 1 is a multi-tap coil, the upper clamping plate 6, the lower clamping plate 8, the connecting disc 2, the reinforcing plate 15 and the supporting plate 16 are formed by cutting epoxy laminated glass cloth plates, the conducting rod 3 is formed by welding a copper rod and a copper plate, the insulating sleeve 4 is selected according to the voltage grade, the flow guiding capacity and the stress strength of an actual product, and the high-voltage heat-shrinkable tube 5 is selected according to the voltage tolerance grade requirement.

The clamping screw, the limiting nail 10 and the lifting plate 12 are made of non-magnetic materials, the upper cushion block 7 and the lower cushion block 9 are resin insulation cushion blocks, and the insulator 13 is selected according to the voltage tolerance level requirement.

When the high-voltage air-core reactor is installed, firstly, the insulator 13 is assembled at the bottom of the lower clamping plate 8, the lower cushion block 9 and the limit nail 10 are installed at the corresponding position of the lower clamping plate 8, then the high-voltage coil 1 is placed at the upper end of the lower clamping plate 8, then an upper cushion block 7 is placed at the corresponding position of the upper edge of the high-voltage coil 1, an upper clamping plate 6 provided with a limit nail 10 is placed at the upper edge of the high-voltage coil 1, the upper splint 6 and the lower splint 8 are tightened to form a whole by 4 clamping screws inside and outside, then the connecting disc 2 is fastened with the supporting plate 16 through the reinforcing plate 15, the supporting plate 16 is fastened with the upper clamping plate 6 and the lower clamping plate 8 through the fasteners, then each conductive rod 3 is firstly screwed on a connecting nut 14 and locked by the nut, then the conductive rod 3 is insulated by a high-voltage heat-shrinkable tube 5, then the conductive rod is connected and fixed on the connecting disc 2 by an insulating sleeve 4 in a switching way, and finally a lifting plate 12 is installed.

The high-voltage coil 1 adopts a vacuum casting coil process, and utilizes a common dry-type transformer vacuum casting mold to realize a coil multi-tap wire outgoing mode, so that the reactor coil can realize a multi-capacity service function, the high-voltage coil 1 external arrangement mode adopts upper and lower epoxy laminated glass cloth plates for clamping, and a cushion block, a limiting nail and a clamping screw rod are utilized to enable the integral structure to form a rigid whole; the structure solves the problem that the conventional winding process coil arrangement mode is difficult to adopt for the high-voltage multi-tap air-core reactor under the conditions of height limitation and width limitation, has novel overall structure, simple outlet structure and convenient connection, can greatly reduce the volume of the reactor, reduces the manufacturing cost of products and high installation cost, and has excellent performance and outstanding economic benefit.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high-pressure air-core reactor takes a percentage external arrangement structure more, includes high-voltage coil (1), its characterized in that: still include coil connecting element, the punch holder subassembly, the lower plate subassembly, connection pad (2), conducting rod (3), insulating sleeve (4) and insulating assembly, high-voltage coil (1) clamp is located between punch holder subassembly and the lower plate subassembly, coil connecting element installs on high-voltage coil (1), the one end of conducting rod (3) is installed on coil connecting element, insulating sleeve (4) are connected to the other end, insulating sleeve (4) fixed mounting is on connection pad (2), connection pad (2) are fixed on punch holder subassembly and lower plate subassembly through insulating assembly, punch holder subassembly and lower plate subassembly pass through fastening components interconnect, the periphery cover of conducting rod (3) is equipped with a plurality of layers of high-pressure pyrocondensation pipe (5).

2. The high-voltage air-core reactor multi-tap external connection arrangement structure according to claim 1, characterized in that: the upper clamp plate assembly comprises an upper clamp plate (6) and an upper cushion block (7), the lower clamp plate assembly comprises a lower clamp plate (8) and a lower cushion block (9), the upper cushion block (7) is installed on the upper clamp plate (6), the lower cushion block (9) is installed on the lower clamp plate (8), and the high-voltage coil (1) is clamped between the upper cushion block (7) and the lower cushion block (9).

3. The high-voltage air-core reactor multi-tap external connection arrangement structure as claimed in claim 2, characterized in that: the limiting groove is formed in the periphery of the upper cushion block (7) and the periphery of the lower cushion block (9), counter bores are formed in the periphery of the upper clamping plate (6) and the periphery of the lower clamping plate (8), limiting nails (10) are installed on the counter bores, and the limiting grooves are connected with the limiting nails (10).

4. The high-voltage air-core reactor multi-tap external connection arrangement structure as claimed in claim 3, wherein: the fastening assembly comprises a clamping screw and a clamping nut (11), the clamping screw sequentially penetrates through the upper clamping plate (6), the upper cushion block (7), the high-voltage coil (1), the lower cushion block (9) and the lower clamping plate (8), and two ends of the clamping screw are respectively locked on the upper clamping plate (6) and the lower clamping plate (8) through the clamping nut (11), so that the connection of the upper clamping plate assembly, the lower clamping plate assembly and the high-voltage coil (1) is realized; the periphery of the clamping screw is sleeved with a high-pressure heat-shrinkable tube (5).

5. The high-voltage air-core reactor multi-tap external connection arrangement structure as claimed in claim 4, wherein: and a lifting plate (12) for lifting the high-voltage air-core reactor is installed at the top of the upper clamping plate (6), and an insulator (13) is installed at the bottom of the lower clamping plate (8).

6. The high-voltage air-core reactor multi-tap external connection arrangement structure as claimed in claim 5, wherein: the coil connecting element is a connecting nut (14), a boss (1.1) is arranged on one side of the high-voltage coil (1), the connecting nut (14) is integrally cast on the boss (1.1), and one end of the conductive rod (3) is locked on the connecting nut (14); the periphery of the connecting nut (14) is sleeved with a plurality of layers of high-pressure heat-shrinkable tubes (5).

7. The high-voltage air-core reactor multi-tap external connection arrangement structure as claimed in claim 6, wherein: the insulating assembly comprises a reinforcing plate (15) and a supporting plate (16), the reinforcing plate (15) is installed on the supporting plate (16), the connecting disc (2) is fixedly installed on the reinforcing plate (15), and the supporting plate (16) is fixed on the upper clamping plate (6) and the lower clamping plate (8) through fasteners.

8. The high-voltage air-core reactor multi-tap external connection arrangement structure as claimed in claim 7, wherein: the high-voltage coil (1) is a multi-tap coil, the upper clamping plate (6), the lower clamping plate (8), the connecting disc (2), the reinforcing plate (15) and the supporting plate (16) are formed by cutting epoxy laminated glass cloth plates, and the conducting rod (3) is formed by welding a copper rod and a copper plate.

9. The high-voltage air-core reactor multi-tap external connection arrangement structure as claimed in claim 8, wherein: the clamping screw, the limiting nail (10) and the lifting plate (12) are made of non-magnetic-conductive materials, and the upper cushion block (7) and the lower cushion block (9) are resin insulation cushion blocks.

10. The high-voltage air-core reactor multi-tap external connection arrangement structure as claimed in any one of claims 1 to 9, characterized in that: the high-voltage coil (1) is formed by vacuum casting of epoxy resin.