CN204792343U

CN204792343U - Three -dimensional triangle -shaped reactor

Info

Publication number: CN204792343U
Application number: CN201520372722.XU
Authority: CN
Inventors: 王建刚; 曾平
Original assignee: Qingdao Yunlu Energy Technology Co Ltd
Current assignee: Qingdao Yunlu Special Transform Intelligent Technology Co Ltd
Priority date: 2015-06-03
Filing date: 2015-06-03
Publication date: 2015-11-18
Anticipated expiration: 2025-06-03

Abstract

The utility model relates to a reactor technical field especially relates to a three -dimensional triangle -shaped reactor, its converter or contravariant cabinet that is arranged in electric power system, and it is good to have the symmetry, efficient, characteristics that the impedance deviation is little, it includes three core limb, upper yoke and lower indisputable yoke, and wherein three core limb becomes triangular configuration, still including fixed insulating integral structure, fixed insulating integral structure includes indisputable yoke fixed slot and center pillar fixed slot, and the quantity of center pillar fixed slot is 3, and becomes triangular configuration, it can make three core limb become triangle -shaped through adopting fixed insulating integral structure to in manufacturing, transportation, storage and the use of reactor, the difficult emergence in the position of three iron core post is removed, makes the reactor can to maintain the form that the core limb becomes triangle -shaped symmetrical arrangement, makes it have magnetic circuit symmetry, the impedance deviation is little, the loss is little, work efficiency is high characteristics.

Description

3-D triangle reactor

Technical field

The utility model relates to reactor technical field, particularly relates to a kind of 3-D triangle reactor, and in its current transformer for electric power system or inverter cabinet, have symmetry good, efficiency is high, the feature that impedance deviation is little.

Background technology

In the current transformer of electric power system or inverter cabinet, current signal by DC inversion be exchange time, a large amount of harmonic wave can be produced, can not direct grid-connected or connect power consumption equipment, reactor must be increased and electric capacity carries out filtering process.Now adopt the filtering mode of LC in industry, i.e. the filtering mode of inductance L+electric capacity C, to reduce harmonic content, reaches grid-connected requirement or power consumption equipment instructions for use more.

Traditional inductor design scheme is by silicon steel as magnetic material, and reactor is plane, three-phase magnetic circuit non complete symmetry, three pole reactor cannot reach complete equipilibrium, and silicon steel magnetic material eddy current loss is in high frequency very large, cause the loss of reactor excessive, affect the efficiency of whole system.

Chinese utility model patent CN203706810U provides a kind of 3-D triangle dry reactor, it comprises iron core, insulating barrier is provided with at the outer wall of described iron core, coil is wound with at described insulating barrier outer wall, cushion block and lower cushion block is provided with at the two ends of described iron core, cushion block is provided with upper yoke on described, on described upper yoke, cover has upper clamping piece, described lower cushion block is provided with lower yoke, on described lower yoke, cover has lower clamping piece, described lower clamping piece is provided with feet, is fastened by bolts between described lower clamping piece and feet; Described iron core is made up of three core limbs, and each core limb stacks into cylindrical-shaped structure by multiple iron-cored cake, is folded with air gap plate between adjacent stator core cake; Further described iron-cored cake is made up of non-crystaline amorphous metal soft magnetic material.This patented technology by reactor being arranged to the form of 3-D triangle, and adopts non-crystaline amorphous metal soft magnetic material, makes it have magnetic hysteresis loss and the smaller advantage of eddy current loss.

But in above-mentioned patented technology, between Double layer iron yoke and the upper and lower surface of core limb, lower cushion block is set, the outer setting folder from top to bottom of Double layer iron yoke, it is fastening that upper clamping piece and lower clamping piece pass through screw rod, thus core limb is fixed between Double layer iron yoke, therefore there is following defect in this patented technology: 1, Double layer iron yoke, upper lower cushion block, the upper and lower surface of 3 core limbs is all planar shaped, three core limb triangularities are maintained by means of only the pressure that the screw rod between folder from top to bottom is fastening, in the manufacture of reactor, transport, store and use procedure in, easily there is trickle or even larger movement in the position of three iron core column, make reactor can not maintain leg-of-mutton form, its loss is increased, operating efficiency degradation, 2, upper cushion block and lower cushion block are arranged between iron yoke and core limb, and it is to the effect of insulation, and this independent insulation system, increases the volume of reactor, 3, the air gap plate of reconciling inductance parameters is set equally between adjacent stator core cake, also increases the volume of reactor.

Utility model content

In order to solve the problem, the purpose of this utility model is to provide a kind of 3-D triangle reactor, it is by adopting fixed insulation integral structure, three core limb triangularities can be made, and in the manufacture of reactor, transport, storage and use procedure, the position of three iron core column is not easily moved, the form making reactor can maintain core limb triangularity to be arranged symmetrically with, and makes it have magnetic circuit symmetry, impedance deviation is little, loss is little, feature that operating efficiency is high.

The technical solution of the utility model is: a kind of 3-D triangle reactor, comprise three core limbs, upper yoke and lower yokes, wherein three core limb triangularities are arranged, also comprise fixed insulation integral structure, described fixed insulation integral structure comprises iron yoke holddown groove and center pillar holddown groove, the quantity of center pillar holddown groove is 3, and triangularity is arranged.

Optimize, described fixed insulation integral structure adopts insulating material to make.

Optimize, the quantity of iron yoke holddown groove is 2, lays respectively at the upper and lower of fixed insulation integral structure; Center pillar holddown groove is positioned at the middle part of fixed insulation integral structure.

Optimize, the inside of upper yoke and lower yoke is set to leg-of-mutton hollow-core construction, and the main body of upper yoke and lower yoke adopts silicon steel band one-time continuous winding to form.

Optimize, core limb adopts metal magnetic powder core compacting to form.

Optimize, described metal magnetic powder core adopts iron silica magnetic particle core.

Optimize, also comprise the coil be wrapped in outside core limb, the upper clamping piece be enclosed within upper yoke, the lower clamping piece be enclosed within lower yoke.

In the utility model, three core limb triangularities are arranged and are referred to: three circle center line connectings of three cylindrical core posts form triangle; 3 center pillar holddown grooves are circular, and triangularity is arranged and referred to: the circle center line connecting of three center pillar holddown grooves forms triangle.Concrete as shown in accompanying drawing 1-4, the triangle of above-mentioned formation is equilateral triangle, in the utility model, this arrangement is become triangular symmetry and arranges.

The shape of three iron yoke holddown grooves and the profile of specification and upper yoke and lower yoke adapt, for fixing upper yoke and lower yoke; The profile of the shape of center pillar holddown groove and specification and core limb adapts, for fixed iron core post; Because 3 center pillar holddown groove triangularities are arranged, so after core limb fixed placement enters center pillar holddown groove, 3 core limbs also triangularity layout, and pass through the fixation of center pillar holddown groove, make not easily to move in the preparation of position at reactor of 3 core limbs, storage, transportation; The upper yoke of reactor, three core limbs, lower yokes just can be fixed together by 2 fixed insulation integral structures by each reactor simultaneously, make reactor overall structure more firmly stable, each positioning parts is accurate, Double layer iron yoke and core limb are closely cooperated, form integral structure, effectively can reduce noise, also ensure that magnetic circuit symmetry simultaneously.

The beneficial effects of the utility model are:

1, by adopting fixed insulation integral structure, iron yoke holddown groove and center pillar holddown groove can make three core limb triangularities be arranged symmetrically with, and in the manufacture of reactor, transport, storage and use procedure, the position of three iron core column is not easily moved, the form that core limb triangularity is arranged symmetrically with can be maintained, make the feature that reactor has magnetic circuit symmetry, impedance deviation is little, loss is little, operating efficiency is high.

2, fixed insulation integral structure adopts insulating material, plays insulating effect, makes reactor need not arrange separately cushion block and lower cushion block again, save space, reduce the volume of reactor, make magnetic circuit utilance high, compact conformation, take up room less, effectively reduce winding, reduce costs.

3, core limb adopts metal magnetic powder core compacting to form, and makes core limb inherently have equally distributed air gap, does not need to add separately air gap plate, achieve the effect that reactor volume is reduced further.

4, iron core of electric reactor post adopts metal magnetic powder core as magnetic material, reduces the eddy current loss under high-frequency harmonic; Upper yoke and lower yoke adopt silicon steel band, and core limb adopts metal magnetic powder core, makes reactor have both the advantage of two kinds of magnetic materials, makes reactor itself not produce harmonic wave.

5, reactor adopts the form of 3-D triangle, and magnetic circuit is dividing both direction and other post magnetic circuit interlinkage through upper and lower iron yoke magnetic flux along triangle, increases the effective rate of utilization of magnetic circuit, the sectional area of upper and lower iron yoke can be effectively reduced, reduce the loss of iron yoke, reduce cost unshakable in one's determination, raise the efficiency.

Accompanying drawing explanation

The overall schematic of the 3-D triangle reactor that Fig. 1 provides for the utility model;

The Double layer iron yoke of the 3-D triangle reactor that Fig. 2 provides for the utility model and the structure chart of core limb;

Fig. 3 is magnetic circuit schematic diagram of the present utility model (in figure, arrow moves towards to represent magnetic line of force direction);

The fixed insulation integral structure schematic diagram that Fig. 4 provides for the utility model.

1, upper yoke; 2, coil; 3, upper clamping piece; 4, fixed insulation integral structure; 5, lower clamping piece; 6, core limb; 7, lower yoke; 8, iron yoke holddown groove; 9, center pillar holddown groove.

Embodiment

Below in conjunction with accompanying drawing, enforcement of the present utility model is illustrated.

The technical scheme of present embodiment is: a kind of 3-D triangle reactor, comprise three core limbs, upper yoke and lower yokes, wherein three core limb triangularities are arranged, also comprise fixed insulation integral structure, described fixed insulation integral structure comprises iron yoke holddown groove and center pillar holddown groove, the quantity of center pillar holddown groove is 3, and triangularity is arranged.

Wherein, described fixed insulation integral structure adopts insulating material to make.

Wherein, the quantity of iron yoke holddown groove is 2, lays respectively at the upper and lower of fixed insulation integral structure; Center pillar holddown groove is positioned at the middle part of fixed insulation integral structure.

Wherein, the inside of upper yoke and lower yoke is set to leg-of-mutton hollow-core construction, and the main body of upper yoke and lower yoke adopts silicon steel band one-time continuous winding to form.

Wherein, core limb adopts metal magnetic powder core compacting to form.

Wherein, described metal magnetic powder core adopts iron silica magnetic particle core.

Wherein, the coil be wrapped in outside core limb, the upper clamping piece be enclosed within upper yoke, the lower clamping piece be enclosed within lower yoke is also comprised.

The principle of accompanying drawing 3 pairs of reactors is illustrated, impose a condition: three-phase reactor flows through the alternating current of superposition harmonic wave, static for the A phase moment, fundamental current is I, and after excitatory, magnetic line of force direction upwards, as shown in the schematic diagram of accompanying drawing 3, through triangle iron yoke, a part of magnetic line of force is along shortest path and other post interlinkage, and another part magnetic line of force is path and other post interlinkage in reverse direction.

Claims

1. a 3-D triangle reactor, comprise three core limbs, upper yoke and lower yokes, wherein three core limb triangularities are arranged, it is characterized in that: also comprise fixed insulation integral structure, described fixed insulation integral structure comprises iron yoke holddown groove and center pillar holddown groove, the quantity of center pillar holddown groove is 3, and triangularity is arranged.

2. 3-D triangle reactor according to claim 1, is characterized in that: described fixed insulation integral structure adopts insulating material to make.

3. 3-D triangle reactor according to claim 2, is characterized in that: the quantity of iron yoke holddown groove is 2, lays respectively at the upper and lower of fixed insulation integral structure; Center pillar holddown groove is positioned at the middle part of fixed insulation integral structure.

4. 3-D triangle reactor according to claim 3, is characterized in that: the inside of upper yoke and lower yoke is set to leg-of-mutton hollow-core construction, and the main body of upper yoke and lower yoke adopts silicon steel band one-time continuous winding to form.

5. 3-D triangle reactor according to claim 4, is characterized in that: core limb adopts metal magnetic powder core compacting to form.

6. 3-D triangle reactor according to claim 5, is characterized in that: described metal magnetic powder core adopts iron silica magnetic particle core.

7. 3-D triangle reactor according to claim 6, is characterized in that: also comprise the coil be wrapped in outside core limb, the upper clamping piece be enclosed within upper yoke, the lower clamping piece be enclosed within lower yoke.