CN216054127U

CN216054127U - Cake-type coil high-voltage series reactor based on high sealing performance

Info

Publication number: CN216054127U
Application number: CN202122607963.6U
Authority: CN
Inventors: 胡道浩; 张士会
Original assignee: Jiangsu Laibao Electric Power Co ltd
Current assignee: Jiangsu Laibao Electric Power Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-03-15
Anticipated expiration: 2031-10-28

Abstract

The utility model discloses a high-tightness cake-type coil high-voltage series reactor, which comprises an upper mounting seat and a lower mounting seat, wherein a plurality of iron core columns are arranged between the upper mounting seat and the lower mounting seat in parallel, a coil is sleeved outside the iron core columns, a first mounting plate is arranged inside the upper mounting seat, a second mounting plate is arranged inside the lower mounting seat, concave grooves are respectively formed inside the first mounting plate and the second mounting plate, a backing plate is attached to the inner wall of each concave groove, a wiring screw is arranged at the top end of the upper mounting seat, an observation mechanism is arranged at the top end of the upper mounting seat and outside the wiring screw, vibration can be reduced and partial noise can be absorbed by arranging the backing plates made of natural rubber between the first mounting plate and a first pressing block, between the second mounting plate and a second pressing block, and the first pressing block and the second pressing block are made of nonmagnetic steel materials, the reactor is ensured to have higher quality factor and lower temperature rise.

Description

Cake-type coil high-voltage series reactor based on high sealing performance

Technical Field

The utility model relates to the technical field of reactors, in particular to a high-voltage series reactor with a pie-shaped coil based on high sealing performance.

Background

The LBCK series reactor is one of important equipment of a low-voltage reactive power compensation device, is connected with a low-voltage parallel capacitor in series and is connected into a power supply system to play a role in reactive power compensation, and has the functions of inhibiting the amplification of higher harmonics of the power supply system, limiting the higher harmonic current flowing into the capacitor, ensuring the safe operation of the low-voltage parallel capacitor and other power supply and distribution equipment and the like.

High-voltage series reactor of prior art mainly comprises high-voltage coil and ground connection iron core post, the iron core post comprises a plurality of iron core cakes, it forms non-magnetic conduction clearance to fill up non-magnetic insulating material between the iron core cake, when the top and bottom clamp plate of iron core post is connected between the gap is great, the vibrations space of iron core post is great, and then the noise that produces is more, under expend with heat and contract with cold effect, the wiring screw can produce not hard up, and then can lead to wiring screw department contact resistance to increase, and whether the screw is not hard up be difficult to directly perceived discovery, need screw up one by one to it, waste time and energy. Therefore, the improvement is made, and the pancake coil high-voltage series reactor based on high sealing performance is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a high-tightness cake-type coil high-voltage series reactor, which comprises an upper mounting seat and a lower mounting seat, a plurality of iron core columns are arranged between the upper mounting seat and the lower mounting seat in parallel, coils are sleeved outside the iron core columns, a first mounting plate is arranged inside the upper mounting seat, a second mounting plate is arranged inside the lower mounting seat, the first mounting plate and the second mounting plate are both internally provided with a concave groove, the inner wall of the concave groove is adhered with a backing plate, the top end of the upper mounting seat is provided with a wiring screw, the top end of the upper mounting seat is arranged outside the wiring screw and is provided with an observation mechanism, the observation mechanism comprises a support fixedly connected to the outer surface of the upper mounting seat, a moving block is fixedly connected to the position, located above the wiring screw, inside the support, and two ends of the moving block movably penetrate through two side walls of the support and are fixedly connected with indicating plates.

As a preferred technical solution of the present invention, a first pressing block is disposed inside the first mounting plate and at the top end of the core limb, and a second pressing block is disposed inside the second mounting plate and at the bottom end of the core limb.

As a preferred technical solution of the present invention, the first pressing block is clamped inside a groove of the first mounting plate, and the second pressing block is clamped inside a groove of the second mounting plate.

As a preferred technical scheme of the utility model, the iron core column is formed by overlapping a plurality of layers of iron core cakes, and is made of low-loss high-quality silicon steel sheets.

As a preferred technical scheme of the utility model, the first pressing block and the second pressing block are made of non-magnetic steel materials, and the backing plate is made of natural rubber materials.

As a preferable technical scheme of the utility model, the top end of the moving block is fixedly connected with two springs, and the top ends of the springs are fixedly connected with ejector rods.

As a preferred technical scheme of the utility model, the top end of the ejector rod extends to the outside of the bracket and is fixedly connected with a bolt, and the two side surfaces of the bracket are positioned outside the indicating plate and are provided with sliding grooves.

The utility model has the beneficial effects that:

1. according to the cake-type coil high-voltage series reactor based on high sealing performance, the base plates made of natural rubber materials are arranged between the first mounting plate and the first pressing block, the second mounting plate and the second pressing block, vibration can be reduced, partial noise can be absorbed, the first pressing block and the second pressing block are made of non-magnetic steel materials, the reactor is guaranteed to have high quality factors and low temperature rise, the coil and the iron core column of the reactor are assembled into a whole and then subjected to the process of pre-baking, vacuum paint dipping and hot baking solidification, H-level impregnating varnish is adopted, the coil and the iron core of the reactor are firmly combined together, noise in operation is greatly reduced, high heat-resisting level is achieved, and the reactor can be guaranteed to operate at high temperature in a low-noise mode.

2. This kind of cake formula coil high pressure series reactor based on high leakproofness through when the not hard up phenomenon of binding screw appearance, the binding screw can drive movable block and indicator plate and shift up in the inside of support, and the spring produces the shrink this moment, and the elasticity degree of binding screw is judged through the distance of shifting up of observing the indicator plate, is convenient for audio-visual observation binding screw's elasticity situation and gives timely restoration.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic plane structure diagram of a high-voltage series reactor of a pie-shaped coil based on high sealing performance;

FIG. 2 is an enlarged structural schematic diagram of a part A in FIG. 1 of a pancake coil high-voltage series reactor based on high sealing performance;

FIG. 3 is a schematic diagram of an iron core column mounting structure of a high-voltage series reactor of a pancake coil based on high sealing performance;

FIG. 4 is a schematic diagram of a base plate structure of a high-voltage series reactor based on a pancake coil with high sealing performance.

In the figure: 1. an upper mounting seat; 2. a lower mounting seat; 3. a first mounting plate; 4. a second mounting plate; 5. a first pressing block; 6. a second pressing block; 7. a core limb; 8. a coil; 9. a base plate; 10. a wiring screw; 11. a support; 12. a moving block; 13. an indicator panel; 14. a spring; 15. a top rod; 16. and (4) bolts.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-4, the high-tightness cake-type coil high-voltage series reactor comprises an upper mounting seat 1 and a lower mounting seat 2, a plurality of iron core columns 7 are arranged between the upper mounting seat 1 and the lower mounting seat 2 in parallel, coils 8 are sleeved outside the iron core columns 7, a first mounting plate 3 is arranged inside the upper mounting seat 1, a second mounting plate 4 is arranged inside the lower mounting seat 2, concave grooves are formed inside the first mounting plate 3 and the second mounting plate 4, a backing plate 9 is attached to the inner wall of each concave groove, a wiring screw 10 is arranged at the top end of the upper mounting seat 1, an observation mechanism is arranged at the top end of the upper mounting seat 1 and outside the wiring screw 10 and comprises a support 11 fixedly connected to the outer surface of the upper mounting seat 1, a moving block 12 is fixedly connected to the inside of the support 11 and above the wiring screw 10, and indicator plates 13 are fixedly connected to two ends of the moving block 12 and movably penetrate through two side walls of the support 11.

Wherein, the inside top that is located iron core post 7 of first mounting panel 3 is provided with first briquetting 5, and the inside bottom that is located iron core post 7 of second mounting panel 4 is provided with second briquetting 6, and inside the recess of first mounting panel 3 of 5 joints of first briquetting, inside the recess of second mounting panel 4 of 6 joints of second briquetting, first briquetting 5 and second briquetting 6 are no magnetism metal material, ensure that the reactor has higher figure of merit and lower temperature rise.

The iron core column 7 is formed by overlapping multiple layers of iron core cakes, the iron core column 7 is made of low-loss high-quality silicon steel sheets, the coil 8 and the iron core column 7 are assembled into a whole and then subjected to the process of pre-drying, vacuum paint dipping and hot drying curing, and H-level paint dipping is adopted, so that the coil and the iron core of the reactor are firmly combined together, the coil is protected from being attacked by rainwater, and the service life is prolonged.

Wherein, first briquetting 5 and second briquetting 6 are no magnetic steel material, and backing plate 9 is the natural rubber material, and the natural rubber sets up and to alleviate vibrations, partial noise absorption.

Wherein, two springs 14 of top fixedly connected with of movable block 12, the top fixedly connected with ejector pin 15 of spring 14, the top of ejector pin 15 extends to the outside fixedly connected with bolt 16 of support 11, the outside that the both sides surface of support 11 is located indicator plate 13 has seted up the spout, when the not hard up phenomenon appears in wiring screw 10, wiring screw 10 can drive movable block 12 and indicator plate 13 and shift up in the inside of support 11, the elasticity degree of wiring screw 10 is judged through observing the distance that shifts up of indicator plate 13.

The working principle is as follows: the two ends of the iron core column 7 are respectively fixed through a first pressing block 5 and a second pressing block 6, the first pressing block 5 and the second pressing block 6 are respectively clamped in clamping grooves formed in a first mounting plate 3 and a second mounting plate 4, high fixing stability is achieved, a cushion plate 9 made of natural rubber materials is arranged between the first mounting plate 3 and the first pressing block 5 and between the second mounting plate 4 and the second pressing block 6, vibration can be reduced, partial noise can be absorbed, the first pressing block 5 and the second pressing block 6 are made of non-magnetic steel materials, the electric reactor is guaranteed to have high quality factors and low temperature rise, after a coil 8 and the iron core column 7 of the electric reactor are assembled into a whole, the technological process of pre-baking, vacuum impregnating varnish and thermal baking solidification is carried out, H-level impregnating varnish is adopted, the coil and the iron core of the electric reactor are firmly combined together, noise in operation is greatly reduced, and high heat-resistant level is achieved, the reactor can be ensured to run at low noise even at high temperature, when the wiring screw 10 becomes loose, the wiring screw 10 can drive the moving block 12 and the indicating plate 13 to move upwards in the support 11, the spring 14 contracts at the moment, the tightness degree of the wiring screw 10 is judged by observing the upwards moving distance of the indicating plate 13, the tightness state of the wiring screw 10 can be conveniently and visually observed, and timely repair is provided.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cake-type coil high-voltage series reactor based on high sealing performance comprises an upper mounting seat (1) and a lower mounting seat (2), and is characterized in that a plurality of iron core columns (7) are arranged between the upper mounting seat (1) and the lower mounting seat (2) in parallel, coils (8) are sleeved outside the iron core columns (7), a first mounting plate (3) is arranged inside the upper mounting seat (1), a second mounting plate (4) is arranged inside the lower mounting seat (2), concave grooves are formed in the first mounting plate (3) and the second mounting plate (4), a backing plate (9) is attached to the inner wall of each concave groove, a wiring screw (10) is arranged at the top end of the upper mounting seat (1), an observation mechanism is arranged outside the wiring screw (10) at the top end of the upper mounting seat (1), and comprises a support (11) fixedly connected to the outer surface of the upper mounting seat (1), the inside of the support (11) is located above the wiring screw (10) and is fixedly connected with a moving block (12), and two ends of the moving block (12) movably penetrate through two side walls of the support (11) and are fixedly connected with indicating plates (13).

2. The high-tightness pancake coil high-voltage series reactor according to claim 1, wherein a first pressing block (5) is arranged inside the first mounting plate (3) at the top end of the iron core column (7), and a second pressing block (6) is arranged inside the second mounting plate (4) at the bottom end of the iron core column (7).

3. The high-tightness cake-type coil high-voltage series reactor as claimed in claim 2, wherein the first pressing block (5) is clamped inside a groove of the first mounting plate (3), and the second pressing block (6) is clamped inside a groove of the second mounting plate (4).

4. The high-tightness cake-type coil high-voltage series reactor as claimed in claim 1, wherein the core limb (7) is formed by stacking a plurality of layers of core cakes, and the core limb (7) is made of low-loss high-quality silicon steel sheets.

5. The high-tightness pancake coil high-voltage series reactor according to claim 3, wherein the first pressing block (5) and the second pressing block (6) are made of non-magnetic steel materials, and the backing plate (9) is made of natural rubber materials.

6. The high-tightness pancake coil high-voltage series reactor according to claim 1, wherein two springs (14) are fixedly connected to the top end of the moving block (12), and a top rod (15) is fixedly connected to the top end of each spring (14).

7. The high-tightness cake-type coil high-voltage series reactor as recited in claim 6, wherein a bolt (16) is fixedly connected to the outside of the top rod (15) extending to the support (11), and sliding grooves are formed in the two side surfaces of the support (11) outside the indicator plate (13).