CN202443831U

CN202443831U - Three-phase wound iron core reactor

Info

Publication number: CN202443831U
Application number: CN201220064176XU
Authority: CN
Inventors: 郭耀粤
Original assignee: 郭家华
Priority date: 2012-02-24
Filing date: 2012-02-24
Publication date: 2012-09-19
Anticipated expiration: 2022-02-24

Abstract

The utility model discloses a three-phase wound iron core reactor. The three-phase wound iron core reactor comprises an upper yoke, a lower yoke, iron core limbs and a coil which is wound onto the iron core limb, wherein the upper yoke and the lower yoke are rolled into circular rings by silicon steel strips; the iron core limbs of a three-phase iron core are uniformly distributed along the end faces of the circular rings of the upper yoke and the lower yoke and clamped between the upper yoke and the lower yoke; the quantity of the distributed iron core limbs is the integral multiple of 3; the iron core limbs are formed by overlaying a plurality sections of iron core cakes which are rolled into cakes by means of the silicon steel strips in a manner of reserving air gaps; and the iron core cakes are provided with radius air gaps. The iron core limbs of the three-phase wound iron core reactor are circularly, stereometrically and uniformly distributed, and the magnetic resistances of magnetic circuits of all phases of iron cores are the same, so that all the phases of magnetic flow are balanced. The iron core cakes are arranged in the manner that reserving the air gaps among the sections, so that the magnetic saturation of the iron cores is prevented, and the stability and the linearity of the reactor are improve. The iron core cakes are provided with the radius air gaps, so that eddy current loss is reduced, and the temperature rising of the reactor is effectively reduced. Compared with the conventional production process of shearing and laminating the iron cores, the three-phase wound iron core reactor saves more labor and time when producing products.

Description

Three-phase volume iron-core reactor

Technical field

The utility model relates to the reactor technical field in the power equipment.

Background technology

Traditional tri-phase iron core reactor, its structure mostly adopt plane laminated core structure.Because every length of magnetic path unshakable in one's determination mutually is different with magnetic resistance, is difficult to reach three-phase equilibrium, thereby cause the stability of three pole reactor value (reactance value) and consistency is poor, poor linearity, cause the vibration of reactor and noise big, loss is big, temperature rise.Plane laminated core structure fabrication complex process, the folded again system of silicon steel sheet that is cut into different size by silicon steel sheet forms.Waste leftover pieces during snip, lamination technology time and effort consuming, cost of manufacture is high.

The utility model content

The technical problem that the utility model will solve provides a kind of three-phase magnetic resistance balance, have high stability, the high degree of balance and high linearity the three pole reactor value roll iron-core reactor, reduce consumptive material, enhance productivity.

The utility model technical problem to be solved is to realize through following technical scheme: a kind of three-phase volume iron-core reactor; Include yoke, down yoke, core limb and the coil on the core limb; It is characterized in that: the said yoke of going up is rolled into circular with following yoke by silicon strip; The unshakable in one's determination core limb of three-phase evenly distributes and is clamped between yoke and the following yoke along the annulus end face of last yoke and following yoke; The quantity that said core limb distributes is 3 integral multiple, and the cake unshakable in one's determination that said core limb is rolled into round pie by plurality of sections by silicon strip is reserved air gap ground string and folded and form, and said cake unshakable in one's determination offers the radius air gap.

Adopt the beneficial effect that the utility model brought: because the rounded three-dimensional even distribution of core limb of the utility model; Each magnetic circuit magnetic resistance unshakable in one's determination mutually is identical; Inductance value, reactance value, pressure drop, every phase magnetic flux all reach balance, have reduced vibration, have reduced noise; Because core limb is by folded the forming of multistage cake string unshakable in one's determination, and intersegmental air gap setting, has avoided magnetic saturation unshakable in one's determination, has improved the stability and the linearity of reactor; Because cake unshakable in one's determination is provided with the radius air gap, has reduced eddy current loss, has reduced the temperature rise of reactor effectively, has prolonged useful life; Because last yoke, following yoke and cake unshakable in one's determination all adopt silicon strip to roll and form, replaced snip, the lamination manufacture craft of traditional iron core, production is simple and convenient, and material-saving is laborsaving to save time, and cost of manufacture is minimized.

Description of drawings

Fig. 1 is the top structure sketch map (quantity that core limb distributes is three) of the utility model three-phase volume iron-core reactor;

Fig. 2 is the top structure sketch map (quantity that core limb distributes is six) of the utility model three-phase volume iron-core reactor;

Fig. 3 is the top structure sketch map (quantity that core limb distributes is nine) of the utility model three-phase volume iron-core reactor;

Fig. 4 is the cross-sectional view of the utility model three-phase volume iron-core reactor;

Fig. 5 is the structural representation of the cake unshakable in one's determination of the utility model three-phase volume iron-core reactor.

Embodiment

As shown in Figure 4; A kind of three-phase volume iron-core reactor; The last yoke 1 of this reactor and following yoke 2 are rolled into circular, core limb 3 by silicon strip and are folded by plurality of sections cake 31 strings unshakable in one's determination and form; Cake 31 unshakable in one's determination also is rolled into round pie by silicon strip, reserves air gap 32 between the cake unshakable in one's determination 31 that string gathers into folds, and avoids magnetic saturation unshakable in one's determination.The core limb 3 of three-phase iron core evenly distributes along the annulus end face of last yoke 1 and following yoke 2, utilizes bolt draw bar 4 tensions to go up yoke 1 and following yoke 2, is clamped in core limb 3 between yoke 1 and the following yoke 2 bolt draw bar 4 non-magnetic conduction bolt of employing and insulating cases.

Wherein the quantity of core limb 3 distributions is 3 integral multiple.As shown in Figure 1, the quantity that core limb 3 distributes is three, is separated by 120 ° between the core limb 3, and every core limb 3 formations one are unshakable in one's determination mutually.As shown in Figure 2, the quantity that core limb 3 distributes is six, is separated by 60 ° between the core limb 3, presses the ABCABC phase sequence and arranges, and every radially relative two core limbs 3 are homophase.As shown in Figure 3, the quantity that core limb 3 distributes is nine, is separated by 40 ° between the core limb 3, press the ABCABCABC phase sequence and arranges, and 120 ° three core limbs 3 of whenever being separated by are homophase.As shown in Figure 5, cake 31 unshakable in one's determination offers radius air gap 31.1, to reduce eddy current loss.

According to actual needs; Coil 5 on core limb 3 can be by the solid conductor coiling or by the parallel coiling of multiple conducting wires; Also can be divided into some groups of separate coils, utilize the serial or parallel connection mode, change the connected mode that homophase is organized coil more; Realize the connection of multiple range, to change various unit for electrical property parameters such as inductance value and load current value.

Claims

1. a three-phase is rolled up iron-core reactor; Include yoke, down yoke, core limb and the coil on the core limb; It is characterized in that: the said yoke of going up is rolled into circular with following yoke by silicon strip; The unshakable in one's determination core limb of three-phase evenly distributes and is clamped between yoke and the following yoke along the annulus end face of last yoke and following yoke; The quantity that said core limb distributes is 3 integral multiple, and the cake unshakable in one's determination that said core limb is rolled into round pie by plurality of sections by silicon strip reserves that the air gap string is folded to form, and said cake unshakable in one's determination offers the radius air gap.