CN220543697U

CN220543697U - Hollow reactor

Info

Publication number: CN220543697U
Application number: CN202321512394.XU
Authority: CN
Inventors: 杜超; 陆迪军
Original assignee: Yilaite Wuxi Power Equipment Co ltd
Current assignee: Yilaite Wuxi Power Equipment Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-02-27
Anticipated expiration: 2033-06-14

Abstract

The utility model relates to the technical field of reactors, in particular to an air-core reactor which comprises a cylinder body, an insulating cylinder, a coil and an air channel stay, and further comprises a supporting frame; the insulating cylinder, the coil and the air passage stay are all positioned on the inner side of the cylinder body; the periphery of the cylinder body is at least partially wrapped on the inner side of the supporting frame, so that the deformation of the air-core reactor after being pressed can be avoided, and the working performance of the air-core reactor is ensured.

Description

Hollow reactor

Technical Field

The utility model relates to the technical field of reactors, in particular to an air-core reactor.

Background

Urban rail transit vehicles generally acquire direct-current voltage from a direct-current power supply network, and control a three-phase alternating-current asynchronous traction motor through a traction inverter to drive trains to run. A filter reactor and an LC filter loop formed by a filter capacitor are arranged in an input loop of the traction inverter, and the LC filter loop can limit the voltage fluctuation of a direct-current side capacitor of the traction inverter to a certain range; meanwhile, when the main circuit has some abrupt changes, such as load abrupt changes, the LC filter circuit can restrain the abrupt changes of load current, so that the traction system can continue to work normally. Generally, the filter reactor mainly adopts an air core reactor and an iron core reactor, wherein the air core reactor has the characteristics of light weight, no magnetic saturation and the like, is beneficial to weight reduction and cost reduction of a train, and the inductance value of the air core reactor is beneficial to real-time control of a traction system.

The air-core reactor is an inductive high-voltage electric appliance used for limiting short-circuit current, reactive compensation and equal movement in an electric power system, and magnetic flux forms a loop through air, so the air-core reactor is called as an air-core reactor.

In the prior art, like a Chinese patent CN214336533U, the hollow reactor (2020.11.27 and 2021.10.01) adopts a cylindrical structure with multiple layers of windings connected in parallel, ventilation air passages are formed between the envelopes, and two hollow reactors are arranged on the same insulating cylinder, so that the occupied space of the hollow reactor can be effectively reduced, but the hollow reactor is inevitably tilted in the process of leaving a factory or carrying, the periphery of the cylinder of the hollow reactor is not provided with a protection device, when the hollow reactor is tilted sideways, the periphery of the cylinder of the hollow reactor is grounded, and is easy to deform under pressure, and the serious deformation of the ventilation air passages between the windings in the cylinder of the hollow reactor can cause the influence on the working performance of the hollow reactor.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the air-core reactor, which can prevent the air-core reactor from deforming after being pressed and ensure the working performance of the air-core reactor.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the hollow reactor comprises a cylinder body, an insulating cylinder, a coil and an air channel stay, and further comprises a supporting frame; the insulating cylinder, the coil and the air passage stay are all positioned on the inner side of the cylinder body; the periphery of the cylinder body is at least partially wrapped on the inner side of the supporting frame.

Preferably, the support frame comprises an insulating plate; the insulating plate is arranged on the outer side of the cylinder body, and the axis of the cylinder body is perpendicular to the main plane of the insulating plate; the projection of the cylinder body along the axis direction of the cylinder body falls on the insulating plate, and the projection is positioned on the inner side of the edge of the insulating plate.

Preferably, the insulating plate is provided with two insulating plates; two insulating plates are respectively arranged at the upper end and the lower end of the cylinder; the insulating plate is longitudinally provided with a through hole, and a bracket is arranged in the through hole; the two ends of the insulating cylinder are fixedly connected with the brackets at the corresponding sides.

Preferably, the support frame further comprises a first pair of tie bolts and a second pair of tie bolts; the two insulating plates are connected with the first split bolt through the second split bolt.

Preferably, the second split bolt is coaxially arranged with the insulating cylinder; the first split bolt is arranged on the outer side of the cylinder body.

Preferably, the first pair of tie bolts are provided in plurality; the first split bolts are uniformly distributed around the axis of the cylinder.

Preferably, the insulating plate is a square plate or a circular plate.

Preferably, the air core reactor further comprises an outlet line row and an insulator; the outgoing line row and the insulator are arranged on the outer side of the insulating plate.

Preferably, the bracket is a cross bracket, and the intersection point of the cross bracket corresponds to the axis position of the insulating cylinder.

Preferably, the first pair of pull bolts is provided with four.

Compared with the prior art, the utility model has the beneficial effects that: through set up first insulation board and second insulation board at the both ends of barrel, the projection of barrel along self axle center direction all falls on first insulation board and second insulation board, and the projection is located the inboard that corresponds the insulation board edge, and first insulation board and second insulation board provide the support for the barrel, can reduce the emergence of the deformation condition that the barrel touched the ground and initiated, and then guarantee air core reactor's working property.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

fig. 2 is a schematic diagram of the lower side structure of the air-core reactor of the present utility model;

fig. 3 is a schematic side view of the air-core reactor of the present utility model;

fig. 4 is a schematic structural view of a support frame according to the present utility model.

In the figure: the novel high-voltage transformer comprises a first insulating plate, a 101 through hole, a 102 bracket, a 2 second insulating plate, a 3 first split bolt, a 4 second split bolt, a 5 cylinder, a 6 insulating cylinder, a 7 coil, an 8 air passage stay, a 9 second wire outlet row, a 10 first wire outlet row and an 11 insulator.

Detailed Description

The following detailed description of the utility model, taken in conjunction with the accompanying drawings, will provide those skilled in the art with a more readily understood understanding of how the utility model may be practiced. While the present utility model has been described in connection with the preferred embodiments thereof, these embodiments are set forth only and are not intended to limit the scope of the utility model.

First embodiment: referring to fig. 1-4, an air-core reactor, comprising: the device comprises a supporting frame, a cylinder body 5, an insulating cylinder 6, a coil 7, an air passage stay 8, a second outgoing line row 9, a first outgoing line row 10 and an insulator 11.

The insulating cylinder 6 is arranged on the inner side of the cylinder body 5, and the insulating cylinder 6 is coaxial with the cylinder body 5; a plurality of airway struts 8; the coil 7 is wound around the insulating cylinder 6, each layer of the coil 7 is provided with an air passage stay 8, and the air passage stay 8 is axially parallel to the insulating cylinder 6, so that a heat dissipation air duct is formed between the coils 7; further, the coil 7 is separated from the insulating cylinder 6 and the cylinder body 5 by an air passage stay 8.

The support frame comprises a first insulating plate 1, a second insulating plate 2, a second split bolt 4 and a plurality of first split bolts 3; a through hole 101 longitudinally penetrating through the first insulating plate 1 is formed in the first insulating plate, and a bracket 102 is arranged in the through hole 101; the bracket 102 is a cross bracket, and the intersection point of the bracket 102 corresponds to the axis position of the insulating cylinder 6; in this embodiment, the number of the first split bolts 3 is four.

The first insulating plate 1 and the second insulating plate 2 have the same structure; the first insulating plate 1 and the second insulating plate 2 are arranged opposite to each other, and the first insulating plate and the second insulating plate are fixed through a second split bolt 4 and a first split bolt 3; the first insulating plate 1 is positioned on the upper side of the second insulating plate 2;

the cylinder body 5 and the insulating cylinder 6 are fixedly arranged between the first insulating plate 1 and the second insulating plate 2, and the axis of the cylinder body 5 is perpendicular to the main planes of the first insulating plate 1 and the second insulating plate 2; the second split bolt 4 penetrates through the insulating cylinder 6; the plurality of first split bolts 3 are disposed around the second split bolts 4 and are all located outside the cylinder 5.

The second wire outlet row 9, the first wire outlet row 10 and the insulator 11 are all arranged on the upper side of the first insulating plate 1, wherein the first wire outlet row 10 is arranged on the upper end part of the second split bolt 4, and the second wire outlet row 9 is alternatively arranged on the upper end part of the first split bolt 3; the two insulators 11 are arranged, the two insulators 11 are arranged in one-to-one correspondence with the second wire outlet row 9 and the first wire outlet row 10, and meanwhile, the insulators 11 are arranged on the lower sides of the second wire outlet row 9 or the first wire outlet row 10; the second outgoing line row 9 and the first outgoing line row 10 are connected with the coil 7.

In this embodiment, in order to provide protection for the cylinder 5, the projections of the cylinder 5 along the axial direction of the cylinder are located on the first insulating plate 1 and the second insulating plate 2, and the projections are located on the inner sides of the edges of the corresponding insulating plates, so that when the cylinder 5 is placed upside down, the edges of the first insulating plate 1 and the second insulating plate 2 are grounded to provide support, the periphery of the cylinder 5 cannot be grounded, and meanwhile, the first split bolts 3 on the periphery can also provide protection for the cylinder 5, so that the pressure resistance of the cylinder 5 is improved.

In this embodiment, the first insulating plate 1 and the second insulating plate 2 are square plates, and in other embodiments, the first insulating plate 1 and the second insulating plate 2 may be circular plates.

Through this technical scheme, through set up first insulation board and second insulation board at the both ends of barrel, the projection of barrel along self axle center direction all falls on first insulation board and second insulation board, and the projection is located the inboard that corresponds the insulation board edge, and first insulation board and second insulation board provide the support for the barrel, can reduce the emergence of the deformation condition that the barrel touched the ground and initiated, and then guarantee air core reactor's working property.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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

1. The utility model provides an air core reactor, includes barrel (5), insulating cylinder (6), coil (7) and airway stay (8), its characterized in that: the hollow reactor further comprises a supporting frame; the insulating cylinder (6), the coil (7) and the airway stay (8) are all positioned on the inner side of the cylinder body (5); the periphery of the cylinder (5) is at least partially wrapped on the inner side of the supporting frame; the support frame comprises an insulating plate; the insulating plate is arranged on the outer side of the cylinder body (5), and the axis of the cylinder body (5) is perpendicular to the main plane of the insulating plate; the projections of the cylinder (5) along the axis direction of the cylinder fall on the insulating plate, and the projections are positioned on the inner side of the edge of the insulating plate; the insulating plate is provided with two insulating plates; two insulating plates are respectively arranged at the upper end and the lower end of the cylinder body (5); the insulating plate is longitudinally provided with a through hole, and a bracket is arranged in the through hole; two ends of the insulating cylinder (6) are fixedly connected with the brackets at the corresponding sides.

2. An air-core reactor according to claim 1, characterized in that: the support frame also comprises a first split bolt (3) and a second split bolt (4); the two insulating plates are connected with the first split bolt (3) through the second split bolt (4).

3. An air-core reactor according to claim 2, characterized in that: the second split bolt (4) and the insulating cylinder (6) are coaxially arranged; the first split bolt (3) is arranged on the outer side of the cylinder body (5).

4. An air-core reactor according to claim 2, characterized in that: the first split bolts (3) are provided with a plurality of split bolts; the first split bolts (3) are uniformly distributed around the axis of the cylinder (5).

5. An air-core reactor according to claim 1, characterized in that: the insulating board is square board or circular board.

6. An air-core reactor according to claim 1, characterized in that: the hollow reactor further comprises an outlet line row and an insulator; the outgoing line row and the insulator are arranged on the outer side of the insulating plate.

7. An air-core reactor according to claim 1, characterized in that: the bracket is a cross bracket, and the intersection point of the bracket corresponds to the axis position of the insulating cylinder (6).

8. An air-core reactor according to claim 4, wherein: the first split bolts (3) are provided with four split bolts.