CN2770056Y

CN2770056Y - Electric capacitive filter

Info

Publication number: CN2770056Y
Application number: CN 200420103394
Authority: CN
Inventors: 余志东
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-24
Filing date: 2004-12-24
Publication date: 2006-04-05
Anticipated expiration: 2014-12-24

Abstract

The utility model discloses an electric power capacitive filter which comprises a box body, wherein two or more magnetic loops composed of multiple layers of silicon steel sheets are arranged in the box body side by side, each of the magnetic loops are respectively wound with an electrical conducting wire, and both ends of each of the electrical conducting wires are respectively arranged on a connecting terminal of the box body; a spacer plate is arranged between each magnetic loop and the electrical conducting wire thereof and an adjacent magnetic loop and an electrical conducting wire thereof in the box body; because the electric power capacitive filter comprises the two or more magnetic loops, each of the electrical conducting wires can be respectively wound on different magnetic loops instead of the situation that the electrical conducting wires are all wound on one magnetic loop, and thus, the interference among the electrical conducting wires is smaller; in addition, the spacer plate is arranged between each magnetic loop and the electrical conducting wire thereof and the adjacent magnetic loop and the electrical conducting wire thereof, and thus, the interference among the electrical conducting wires can be further reduced; thus, the working performance of the filter is stabler.

Description

A kind of electric capacitor filter

Technical field

The utility model relates to a kind of filter, especially a kind of electric capacitor filter.

Background technology

Along with the develop rapidly of power electronic technology, the application of all kinds of power electronic equipments in industrial and mining enterprises and household electrical appliance is increasingly extensive, has obtained huge social benefit and economic benefit.The application of power electronic technology and device has also caused the harmonic pollution of electric power system, and is on the rise but meanwhile.After electric power system is subjected to harmonic pollution, gently then increase energy consumption, heavy then damage equipment or cause serious for using electrification; The harmonic problem that adopts the electric capacitor filter to administer in the electrical network is a kind of method commonly used in the electric power system, its many electric leads that contained of existing power capacitive filter all are wrapped on the same magnet ring, this structure makes that the interference between each electric lead is very big, influences the stability of filter service behaviour.

Summary of the invention

In order to overcome the deficiencies in the prior art, the purpose of this utility model provides a kind of electric capacitor filter, and the interference between its inner each electric lead is less.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of electric capacitor filter comprises box body, is placed with two or more magnet rings of being made up of the multilayer silicon steel sheet in the described box body side by side, and each magnet ring is wound with electric lead respectively, and the two ends of every electric lead are installed in respectively on the binding post of box body.

As a kind of improvement of technique scheme, in the described box body, between each magnet ring and electric lead thereof and adjacent magnet ring and the electric lead thereof dividing plate is arranged.

The beneficial effects of the utility model are: because this electric capacitor filter comprises two or more magnet rings, so each electric lead can be wrapped in respectively on the different magnet rings, rather than electric lead all is wrapped on the same magnet ring, so the interference between each electric lead is less, as a kind of improvement, there is dividing plate to separate the interference that can further reduce between the electric lead between each magnet ring and electric lead thereof and adjacent magnet ring and the electric lead thereof, thereby makes that the service behaviour of filter is more stable.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the structural representation of existing power capacitive filter;

Fig. 2 is the structural representation after a kind of execution mode of the present utility model removes its box body loam cake;

Fig. 3 is the vertical view of Fig. 2;

Fig. 4 is the structural representation of the preferred implementation of the utility model middle magnetic ring.

Embodiment

With reference to Fig. 2, a kind of electric capacitor filter, comprise box body 1, be placed with two or more magnet rings of forming by the multilayer silicon steel sheet 2 in the described box body 1 side by side, each magnet ring 2 is wound with electric lead 3 respectively, the two ends of every electric lead 3 are installed in respectively on the binding post 31 of box body, because each electric lead is wrapped in respectively on the different magnet rings, rather than many electric leads all are wrapped on the same magnet ring, as shown in Figure 1, so can reduce the interference between each electric lead greatly, thereby make that the service behaviour of filter is more stable.

Wherein, the quantity of magnet ring 2 can be chosen to be two or three according to actual conditions.

In box body 1, between each magnet ring and electric lead thereof and adjacent magnet ring and the electric lead thereof dividing plate can be set, can further reduce the interference between the electric lead like this.

With reference to Fig. 3,, also have thermovent 5 on the box body 1 for the ease of the filter heat radiation.

With reference to Fig. 4, on the cross section of magnet ring 2 a kerf 21 can be set, be provided with high-temperature insulation film 22 in the otch 21, be with the stirrup 23 of magnet ring 2 and high-temperature insulation film 22 bandings so that the both ends of the surface of high-temperature insulation film 22 and otch 21 fit tightly at magnet ring 2 outer, owing on the magnet ring 2 otch 21 is arranged, so can reduce the eddy current that produced in the magnet ring 2 greatly, thereby be provided with in above-mentioned otch 21 in addition that high-temperature insulation film 22 that the both ends of the surface with otch fit tightly can reduce again that noise that magnet ring produces greatly reduces the energy loss that brings because of eddy current and noise and to the harm of electrical network.

Wherein, described stirrup 23 comprises steel band 24 and snap close 25, thereby lock magnetic ring body 2 and high-temperature insulation film 22 bandings by snap close 25 at steel band 24 two ends.This banding mode is simple in structure, easy for installation.

Above-mentioned is preferred implementation of the present utility model, and it does not constitute the restriction to technical solutions of the utility model.The utility model can also have other execution mode; can also adopt other known structure as its stirrup; in a word; so long as a kind of electric capacitor filter; comprise box body, be placed with two or more magnet rings of being made up of the multilayer silicon steel sheet in the described box body side by side, each magnet ring is wound with electric lead respectively; the two ends of every electric lead are installed in the structure on the binding post of box body respectively, all belong to the protection range of ability with new technique.

Claims

1. electric capacitor filter, it is characterized in that: comprise box body (1), be placed with two or more magnet rings of forming by the multilayer silicon steel sheet (2) in the described box body (1) side by side, each magnet ring (2) is wound with electric lead (3) respectively, and the two ends of every electric lead (3) are installed in respectively on the binding post (31) of box body (1).

2. a kind of electric capacitor filter according to claim 1 is characterized in that in described box body (1), dividing plate (4) is arranged between each magnet ring and electric lead thereof and adjacent magnet ring and the electric lead thereof.

3. a kind of electric capacitor filter according to claim 1 and 2 is characterized in that described magnet ring (2) is two or three.

4. a kind of electric capacitor filter according to claim 1 and 2 is characterized in that having on the described box body (1) thermovent (5).

5. a kind of electric capacitor filter according to claim 1 and 2, it is characterized in that on the cross section of described magnet ring (2) a kerf (21) being arranged, be provided with high-temperature insulation film (22) in the otch (21), be with the stirrup (23) of magnet ring (2) and high-temperature insulation film (22) banding so that the both ends of the surface of high-temperature insulation film (22) and otch (21) fit tightly at magnet ring (2) outer.

6. a kind of electric capacitor filter according to claim 5 is characterized in that described stirrup (23) comprises steel band (24) and snap close (25), and the two ends of steel band (24) are by snap close (25) locking.