CN201820576U

CN201820576U - Magnetic core reactor

Info

Publication number: CN201820576U
Application number: CN2010205776321U
Authority: CN
Inventors: 钱旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-26
Filing date: 2010-10-26
Publication date: 2011-05-04
Anticipated expiration: 2020-10-26

Abstract

The utility model discloses a magnetic core reactor which comprises an upper plywood and a lower plywood which are symmetrically arranged with each other, wherein the upper plywood and the lower plywood are tightly fixed by a through screw rod to fix the whole reactor. A coil comprises a plurality of cake insulating supports and a plurality of turn-to-turn insulating supports which are evenly distributed, as well as plurality of flat copper wires, wherein the cake insulating supports and the turn-to-turn insulating supports which are evenly distributed form a good heat-dissipating passageway. An iron core part consists of an inner-side iron core, an outer-side iron core and an insulating cylinder. The magnetic core reactor is an ideal reactor which is small in noise, good in inductance linearity, less in loss, less in flux leakage, small in volume, good in heat dissipation, and applied to mini type machines and medium type machines with various purposes.

Description

A kind of magnetic core reactor

Technical field

The utility model relates to a kind of magnetic reactor.

Background technology

Reactor mainly is being divided into two kinds of iron core reactor and air core reactors at present on the market as a kind of widely used circuit block, and the reactor major advantage of core structure is that loss is little, Electro Magnetic Compatibility is better, volume is little.Its shortcoming be big noise is arranged and when fault current is big core sataration lost current limiting capacity.The major advantage of air core reactor is that the inductance value linearity ability and noise good, that have very strong limiting short-circuit current are little.Shortcoming is that loss is big, volume is big, leakage field is big.

The utility model content

Existing iron core reactor noise is big in order to solve, a little less than the current limiting capacity, and big, the bulky technical problem of air core reactor loss, the utility model provides the magnetic core reactor that is adapted to middle-size and small-size various uses that a kind of noise is little, the inductance value linearity is good, loss is little, leakage field is little, volume is little, thermal diffusivity is good.

In order to realize above-mentioned technique effect, the technical solution of the utility model is, a kind of magnetic core reactor, it comprises train wheel bridge, lower plate, two outside iron cores, inboard iron core, insulating cylinder, many flat type copper wires, insulation support body between a plurality of turn-to-turn insulation supporters and a plurality of cake, described insulating cylinder is the column tube of hollow, described inboard iron core is the column hollow cylinder contour with insulating cylinder that is formed by multilayer silicon steel sheet stack back bending, insulating cylinder is arranged at the inside of inboard iron core and is close to inboard iron core, described outside iron core is by after the stack of multilayer silicon steel sheet, heart part perforate therein forms, the diameter of its perforate is consistent with the diameter of inboard iron core, two outside iron cores are set in the two ends of inboard iron core, form the middle part and leave the I-shaped shape core structure in the space of coiling flat type copper wire, described many flat type copper wires are respectively around inboard iron core winding, and all support between each root flat type copper wire and between flat type copper wire and inboard iron core and outside iron core and insulate with insulation support body between turn-to-turn insulation supporter or cake, between each root copper cash for being connected in parallel, described train wheel bridge and lower plate are fixed whole reactor by core through screw rod, and train wheel bridge and the corresponding position of the lower plate and the hollow parts of insulating cylinder have the hole with the identical size of insulating cylinder internal diameter.

Above-mentioned a kind of magnetic core reactor in axial direction has an inboard iron core slit on its described inboard iron core, the width in described inboard iron core slit is the 0.1-2 millimeter.

Above-mentioned a kind of magnetic core reactor, its described two outside iron cores are having iron core slit, the outside with corresponding position, inboard iron core slit, and the width in iron core slit, the described outside is the 0.1-2 millimeter.

Technique effect of the present utility model is, owing to adopted stacked silicon steel sheet to make iron core, and its inside is left hollow, iron core is very little at this reactor consumption, thereby loss is also very little, and weight is also low weight, will reduce 1/3 with respect to the iron core reactor weight with capacity; The existence of iron core has simultaneously reduced the stray field of reactor again, loss with respect to air core reactor, the utility model has only about 1/5 of its loss, and formed good heat dissipation channel by the insulator support in the coil that the flat type copper wire coiling forms, help whole reactor good heat radiating, have the slit on the iron core, be used to prevent after the iron core short circuit that heating expands and damage reactor.

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

Description of drawings

Fig. 1 is a cutaway view of the present utility model.

Wherein, 1 is train wheel bridge, and 2 is lower plate, and 3 is outside iron core, and 4 is inboard iron core, and 5 is insulating cylinder, and 6 is flat type copper wire, and 7 is the turn-to-turn insulation supporter, and 8 is insulation support body between cake.

Embodiment

Referring to Fig. 1, the utlity model has symmetrically arranged train wheel bridge 1 and lower plate 2, last lower plate symmetry is drilled with mounting hole, with the tension of stainless steel core through screw rod, between the clamping plate that insulating cylinder 5 is fixing firmly.Iron core divides inboard iron core 4 and outside iron core 5, and inboard iron core 4 is that the silicon steel sheet of high permeability material is turned to cylinder after stacked, cuts the seam of a 0.1-2 millimeter again, in case heating scaling loss reactor after the iron core short circuit; The iron core that outside iron core 5 is formed by stacking for the high permeability material silicon steel sheet, the middle same seam that cuts a 0.1-2 millimeter.Inboard iron core 4 is fixed on the insulating cylinder 5 and fastening with insulating material, again after the uniform support on the inboard iron core 4 with coil winding on inboard iron core 4.The coil that flat type copper wire 6 turns to is a parallel-connection structure, is evenly equipped with turn-to-turn insulation supporter 7 between the coil turn and supports to form heat dissipation channel.Also be evenly equipped with insulation support body 8 support formation heat dissipation channels between cake between every cake coil, make the thermal diffusivity of coil very good.After coil winding is intact outside iron core 5 insulate is supported and fixed between coil and the last lower plate, strains to assemble with the punching bolt at last and carries out the processing of overall vacuum pressure dipping lacquer, so that firm integral body of whole reactor formation.Inboard iron core of the present utility model and outside iron core seam on bulk requires little as much as possible little, and distance is less than 0.5mm, to reduce the reactor leakage field.

Because inboard iron core 4 and outside iron core 3 have formed a seamless substantially core of reactor, iron core is close to the effective magnetic conduction of coil and has shielded leakage flux, reduce in a large number with respect to pure air core reactor leakage field, and relative iron core reactor, volume of the present utility model is much smaller, has saved silicon steel material while core structure form and has determined that this reactor noise is littler than iron core reactor.

Claims

1. magnetic core reactor, it is characterized in that, comprise train wheel bridge (1), lower plate (2), two outside iron cores (3), inboard iron core (4), insulating cylinder (5), many flat type copper wires (6), insulation support body (8) between a plurality of turn-to-turn insulation supporters (7) and a plurality of cake, described insulating cylinder (5) is the column tube of hollow, described inboard iron core (4) is the column hollow cylinder contour with insulating cylinder (5) that is formed by multilayer silicon steel sheet stack back bending, insulating cylinder (5) is arranged at the inside of inboard iron core (4) and is close to inboard iron core (4), described outside iron core (3) is by after the stack of multilayer silicon steel sheet, heart part perforate therein forms, the diameter of its perforate is consistent with the diameter of inboard iron core (4), two outside iron cores (3) are set in the two ends of inboard iron core (4), form the middle part and leave the I-shaped shape core structure in the space of coiling flat type copper wire (6), described many flat type copper wires (6) are respectively around inboard iron core (4) coiling, and all support between each root flat type copper wire (6) and between flat type copper wire (6) and inboard iron core (4) and outside iron core (3) and insulate with insulation support body (8) between turn-to-turn insulation supporter (7) or cake, between each root copper cash for being connected in parallel, described train wheel bridge (1) and lower plate (2) are fixed whole reactor by core through screw rod, and train wheel bridge (1) and the corresponding position of the lower plate (2) and the hollow parts of insulating cylinder have the hole with the identical size of insulating cylinder internal diameter.

2. a kind of magnetic core reactor according to claim 1 is characterized in that, in axial direction has an inboard iron core slit on the described inboard iron core (4), and the width in described inboard iron core slit is the 0.1-2 millimeter.

3. a kind of magnetic core reactor according to claim 1 and 2 is characterized in that, described two outside iron cores (3) are having iron core slit, the outside with corresponding position, inboard iron core slit, and the width in iron core slit, the described outside is the 0.1-2 millimeter.