CN209515407U - A kind of stacked iron core of the three-phase stereo of three-phase reactor - Google Patents

Abstract

The utility model discloses a kind of stacked iron cores of the three-phase stereo of three-phase reactor, belong to reactor technical field, including upper yoke, lower yoke, stem between upper yoke and lower yoke, and the fixed mechanism for fixing iron yoke and stem, the upper yoke and lower yoke are the three-phase iron yoke of triangle, and the three-phase iron yoke includes three single-phase iron yokes, and three single-phase iron yokes splice composition equilateral triangle two-by-two；The quantity of the stem is three, is correspondingly connected with three angles of three-phase iron yoke, and the stem includes core through screw rod, the discus being through on core through screw rod and air gap pad, and the discus and air gap pad are alternately placed.The utility model solves in the iron core of conventional three-phase reactor, the unequal unequal problem of reactance value for leading to three-phase reactor of the mutual distance of stem and discus cause three-phase reactor to there are problems that flux loss and hot-spot by traditional stack mode stack.

Description

A kind of stacked iron core of the three-phase stereo of three-phase reactor

Technical field

The utility model belongs to reactor technical field, is related to the iron core of three-phase reactor, in particular to a kind of three-phase electricity The stacked iron core of the three-phase stereo of anti-device.

Background technique

The iron core of conventional three-phase reactor is constituted as shown in figure 5, being sequentially connected by upper yoke, stem and lower yoke, upper iron Yoke and lower yoke are mountain font iron yoke (001), are formed by silicon steel sheet stack mountain-shaped, in stack, at center and both ends Reserved core through screw rod hole (007)；Stem is in a line arrangement in the horizontal direction, and stem is discus (005) and air gap pad (006) it alternately passes through core through screw rod to form, the both ends of stem are connect with the foot portion of mountain font iron yoke (001).This structure Iron core the problem is that: the length of three-phase magnetic circuit differs, specifically, the magnetic circuit that A phase compares B phase with C phase is long；And three cores The mutual distance of column is unequal, and the distance for causing the coil of three-phase reactor mutual is also unequal, spatial position phase It is mutually asymmetric, it is unequal so as to cause the reactance value of three-phase reactor.

For the iron core of conventional three-phase reactor, as shown in Fig. 6 .1, k is magnetic flux diffusion breadth, and g5 is that discus is high, G6 is that air gap is high, and when main flux passes through stem, magnetic flux enters another discus by a discus (005) after air gap pad (006) (005), when main flux is by gap where air gap pad (006), since edge effect part magnetic flux can be caused to external diffusion Added losses；The discus (005) of the iron core of conventional three-phase reactor is formed by axially disposed multiple silicon steel sheet stacks, Top view the parallel stack of multiple silicon steel sheets and is fitted closely as shown in Fig. 6 .2, and one is additionally provided on the silicon steel sheet at center and is worn Heart screw hole (007), the discus (005) of stack, can be directly entered in the magnetic flux parallel direction of external diffusion in a manner described Silicon steel sheet, but the part magnetic flux in vertical direction can then enter discus (005) perpendicular to silicon steel sheet, and this can cause very big whirlpool Stream loss, be easy to cause serious hot-spot.

Therefore, in response to the above problems, the present invention proposes a kind of stacked iron cores of the three-phase stereo of three-phase reactor.

Summary of the invention

The purpose of this utility model is that: a kind of stacked iron core of three-phase stereo of three-phase reactor is provided, is solved In the iron core of conventional three-phase reactor, the unequal reactance value for leading to three-phase reactor of the mutual distance of stem is unequal Problem and discus cause three-phase reactor to there are problems that flux loss and hot-spot by traditional stack mode stack.

The technical solution adopted in the utility model is as follows:

A kind of stacked iron core of the three-phase stereo of three-phase reactor, including upper yoke, lower yoke are located at upper yoke and lower iron Stem between yoke, and the fixed mechanism for fixing iron yoke and stem, the upper yoke and lower yoke are triangle Three-phase iron yoke, the three-phase iron yoke include three single-phase iron yokes, and three single-phase iron yokes splice composition equilateral triangle two-by-two；

The quantity of the stem is three, is correspondingly connected with three angles of three-phase iron yoke, the stem includes core through screw rod, wears Discus and air gap pad on core through screw rod, the discus and air gap pad are alternately placed.

Further, the silicon steel sheet in the discus by weight radially stack at multiple segments.

Further, the discus further includes wheel rim, spoke and wheel hub, and the silicon steel sheet is arranged in wheel rim and spoke structure At segment in, the wheel hub is looped around outside core through screw rod.

Further, the single-phase iron yoke includes outer folder, iron yoke lamination and the interior folder that ecto-entad is set gradually, institute It states and iron yoke lamination is tensed by tensioning mechanism between outer folder and interior folder.

Further, the iron yoke lamination includes the n lamination that ecto-entad is successively layering, and is added to after i-th layer Lamination and its next laminates seamed edge corresponding points line, the angle with horizontal direction is 30 °, and jth layer and its before The seamed edge of the lamination of equal amount layer and core through screw rod are axially tangent afterwards, and the seamed edge is the seamed edge close to adjacent single-phase iron yoke, Wherein, the relationship of n and i, j are as follows:I, j and n is the integer greater than 1.

Further, the iron yoke lamination includes the n-layer inverted U lamination that ecto-entad is successively staggeredly superimposed layer by layer, In, every layer of inverted U lamination is connected with each other by lateral lamination, long lamination and short lamination, and the height of the long lamination is more than The height of lateral lamination, the height of the short lamination are that the height of long lamination subtracts the height of lateral lamination；

Wherein, the inverted U lamination connection type of singular layer are as follows: the left end of lateral lamination and stem are circumscribed in the axial direction, and External one axially placed long lamination, the right end and circle inscribe of lateral lamination, the diameter of a circle D is as the diameter of stem Greatly, the lower surface of lateral lamination connects an axially placed short lamination, the right end of the right end of the short lamination and lateral lamination It flushes；

Wherein, the inverted U lamination connection type of even numbers layer are as follows: the left end of lateral lamination and circle inscribe, the diameter of a circle D Big as the diameter of stem, the lower surface of lateral lamination connects an axially placed short lamination, the left end of the short lamination It is flushed with the left end of lateral lamination；The right end of lateral lamination and stem are circumscribed in the axial direction, and an external axially placed length Lamination.

Further, the iron yoke lamination includes the n rectangle lamination that ecto-entad is successively layering, and is added to The line of the seamed edge corresponding points of lamination and its next laminates after i-th layer, the angle with horizontal direction is 30 °, and jth layer It is axial tangent with the seamed edge and core through screw rod 7 of the lamination of its front and back equal amount layer, wherein the relationship of n and i, j are as follows: I, j and n is the integer greater than 1, and the seamed edge is the seamed edge close to adjacent single-phase iron yoke；For being less than i-th layer of lamination, It can be overlapped into cuboid, other structures can also be laminated in, the isosceles ladder body such as to stand upside down is less than i-th The seamed edge and circle inscribe, the diameter of a circle D of the lamination of layer are big as the diameter of stem.

Further, the outer folder is arch channel steel, including outer folder web and outer folder supporting plate, the outer folder two It holds and is provided with iron yoke screw hole on the outer folder web of bending place, the single-phase iron yoke is spliced two-by-two by equilateral triangle, is led to The iron yoke screw hole for crossing iron yoke screw rod two outer folders of connection is fixed.

Further, the tensioning mechanism include U-shaped fixed plate outside the side for be arranged in outer folder on folder supporting plate, it is solid The U-shaped screw rod and one end being scheduled in U-shaped fixed plate are fixed on U-shaped screw rod, the other end is fixed on the drawing on drawstring slot Band, the drawstring slot are arranged in outside the other side of outer folder on folder supporting plate.

Further, the fixed mechanism includes basin-shaped washer and fixed screw, and the core through screw rod of the every stem is equal Across three angles of upper yoke and three angles of lower yoke, the both ends of core through screw rod, the fixation is arranged in the basin-shaped washer Screwed lock is at the both ends of the basin-shaped washer.

In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:

1. three single-phase iron yokes, are spliced into the three-phase of triangle by a kind of stacked iron core of the three-phase stereo of three-phase reactor Iron yoke is correspondingly connected with stem at three angles of three-phase iron yoke, keeps the spatial position between each stem symmetrical, and by solid Determine the connection that mechanism is fixed between upper yoke, stem and lower yoke, constitute the three-phase stereo iron core of three-phase reactor, uses The reactor of the iron core, the spatial position between three coils are equal, to make the electricity of the three-phase reactor comprising the iron core Anti- value is also equal.

2. silicon steel sheet in discus described in the utility model by weight radially stack at multiple segments, when When entering discus to the magnetic flux of external diffusion due to edge effect, the magnetic flux in whichever direction will all be parallel to silicon steel sheet and enter iron Cake, it is possible to reduce eddy-current loss.

3. discus described in the utility model further includes wheel rim, wheel hub is looped around outside core through screw rod described in spoke and wheel hub Portion does not need to perforate on silicon steel sheet, reduces loss；The silicon steel sheet is arranged in the segment that wheel rim and spoke are constituted, Reduce closed assembly working hour and the difficulty of silicon steel sheet, and short and small silicon steel sheet can be made full use of, keeps the utilization rate of silicon steel sheet higher.

4. being tensed by tensioning mechanism to iron yoke lamination between outer folder and interior folder described in the utility model, institute Stating tensioning mechanism includes U-shaped fixed plate outside the side for be arranged in outer folder on folder supporting plate, the U being fixed in U-shaped fixed plate Type screw rod and one end are fixed on U-shaped screw rod, the other end is fixed on the drawstring on drawstring slot, the drawstring slot setting Outside the other side of outer folder on folder supporting plate.Drawstring folder supporting plate outside the side of outer folder pulls out, and bypasses interior folder It is fixed on outside the other side of outer folder on folder supporting plate with iron yoke lamination, interior folder and iron yoke lamination is tensed, setting is more Simply, easy for installation.

5. iron yoke lamination described in the utility model includes the n-layer inverted U lamination that ecto-entad is successively staggeredly superimposed layer by layer, Successively staggeredly the mode of superposition can make the structure of iron yoke stronger to this inverted U lamination ecto-entad layer by layer.

6. iron yoke lamination described in the utility model includes the n rectangle lamination that ecto-entad is successively layering, fold The line of the seamed edge corresponding points of lamination and its next laminates after being added to i-th layer, the angle with horizontal direction is 30 °, right In the lamination for being less than i-th layer, it can be overlapped into cuboid, operation is simpler, other structures can also be laminated in, Such as the isosceles ladder body of handstand, more saving material, different actual demands can satisfy.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings, in which:

Fig. 1 is the three-dimensional structure diagram of the utility model；

Fig. 2 is the front view of the utility model；

Fig. 3 is the sectional view in Fig. 2 at A-A；

Fig. 4 .1 is the schematic cross-section of discus in the utility model；

Fig. 4 .2 is the front view of discus in the utility model；

Fig. 4 .3 is the structural schematic diagram of discus in the utility model；

Fig. 4 .4 is the stack schematic diagram of silicon steel sheet in the utility model；

Fig. 5 is the core structure schematic diagram of conventional three-phase reactor；

Fig. 6 .1 is the core column structure schematic diagram of conventional three-phase reactor；

Fig. 6 .2 is the discus schematic top plan view of conventional three-phase reactor；

Fig. 7 is the single-phase iron yoke structure chart of the utility model embodiment one；

Fig. 8 is the inverted U lamination schematic diagram of the utility model embodiment one；

Fig. 9 is the single-phase iron yoke structure chart of the utility model embodiment two；

Figure 10 is the single-phase iron yoke structure chart of the utility model embodiment three；

Marked in the figure: 001. mountain font iron yoke, 005. discus, 006. air gap pad, 007. core through screw rod hole, 1. outer folders, 11. outer clamp insulation, 101. outer folder webs, 102. outer folder supporting plates, 103. iron yoke screw holes, 104. iron yoke screw rods, 2. inner clips Part, clamp insulation in 12., 3. iron yoke laminations, 301. lateral laminations, 302. long laminations, 303. short laminations, 4. tensioning mechanisms, 401.U type fixed plate, 402.U type screw rod, 403. drawstrings, 404. drawstring slots, 5. discuses, 501. wheel rims, 502. spokes, 503. Wheel hub, 504. silicon steel sheets, 6. air gap pads, 7. core through screw rod, 8. fixed mechanisms, 801. basin-shaped washers, 802. fixed screws, 9. pads Foot.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this Utility model is not used to limit the utility model, i.e. described embodiment a part of the embodiment for being the utility model, Instead of all the embodiments.Usually being described herein as can be with each with the component of the utility model embodiment shown in the accompanying drawings Different configurations is planted to arrange and design.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Reality based on the utility model Apply example, those skilled in the art's every other embodiment obtained without making creative work belongs to The range of the utility model protection.

It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive Property include so that include a series of elements process, method, article or equipment not only include those elements, but also Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described There is also other identical elements in the process, method, article or equipment of element.

It is described in further detail below with reference to feature and performance of the embodiment to the utility model.

Embodiment one

The preferred embodiment of the utility model provides a kind of stacked iron core of three-phase stereo of three-phase reactor, including Upper yoke, lower yoke, the stem between upper yoke and lower yoke, and the fixed mechanism for fixing iron yoke and stem, The upper yoke and lower yoke are the three-phase iron yoke of triangle, and the three-phase iron yoke includes three single-phase iron yokes, and three single-phase Iron yoke splices composition equilateral triangle two-by-two, is provided with insulation board at the butt joint edge of the single-phase iron yoke spliced two-by-two, described Insulation board with a thickness of 1mm；

The quantity of the stem is three, is correspondingly connected with three angles of three-phase iron yoke, the stem include core through screw rod 7, The discus 5 and air gap pad 6 being through on core through screw rod 7, the discus 5 and air gap pad 6 are alternately placed, the core through screw rod 7 be every Magnetic stainless steel screw rod, surface are additionally provided with epoxy stringing.

Further, the top layer of the stem and lowest level are discus 5, between discus 5 and upper yoke and lower yoke It is provided with the high-strength insulating thin slice of 0.5mm, the diffusion of the magnetic flux in gap is reduced, is also coated between heat insulating lamella and upper yoke Epoxy resin makes the discus 5 of top layer tightly be bonded together with upper yoke, convenient for lifting upper yoke acting air gap adjustment.

Further, radially stack is at multiple segments by 5 center of discus for the silicon steel sheet 504 in the discus 5, such as Shown in Fig. 4 .1 and Fig. 4 .4, Fig. 4 .1 is the schematic cross-section of discus 5, and Fig. 4 .4 is the stack schematic diagram of silicon steel sheet 504, is pressed The discus 5 of above method stack, when entering discus 5 to the magnetic flux of external diffusion due to edge effect, the magnetic in whichever direction The logical silicon steel sheet 504 that will all be parallel to enters discus 5, it is possible to reduce eddy-current loss.

Further, the discus 5 further includes wheel rim 501, spoke 502 and wheel hub 503, and the silicon steel sheet 504 is arranged In the segment that wheel rim 501 and spoke 502 are constituted, as shown in Fig. 4 .1 to Fig. 4 .3, Fig. 4 .1 is the schematic cross-section of discus 5, Fig. 4 .2 is the front view of discus 5, and dash area is spoke 502 in figure, knot when Fig. 4 .3 is 5 not set silicon steel sheet 504 of discus Structure schematic diagram, the wheel hub 503 are looped around outside core through screw rod 7, are not needed to perforate on silicon steel sheet, are reduced loss；Spoke 502 will be divided into multiple segments between wheel hub 503 and wheel rim 501, silicon steel sheet 504 is axially inserted into wheel rim 501 and spoke 502 is constituted This multiple segment in, compared to the segment relatively constituted without wheel rim 501 and spoke 502, directly by silicon steel sheet 504 in radiation Shape stack reduces closed assembly working hour and the difficulty of silicon steel sheet 504 at the mode of multiple segments, and can make full use of short and small Silicon steel sheet keeps the utilization rate of silicon steel sheet higher.

Further, the gap between the silicon steel sheet 504 and spoke 502 is cast with epoxy resin, stablizes discus 5 Molding；The wheel rim 501 and wheel hub 503 be empire cloth coiled sheet at torus.

Further, the single-phase iron yoke includes outer folder 1, iron yoke lamination 3 and the interior folder that ecto-entad is set gradually 2, iron yoke lamination 3 is tensed by tensioning mechanism 4 between the outer folder 1 and interior folder 2.

Further, as shown in Fig. 7, Fig. 9 and Figure 10, d is the diameter of core through screw rod 7 in figure, and the iron yoke lamination 3 includes The n lamination that ecto-entad is successively layering, the be added to lamination after i-th layer and the seamed edge corresponding points of its next laminates Line, the angle with horizontal direction are 30 °, it is therefore an objective to so that three single-phase iron yokes is can make up equilateral triangle, and jth layer with The seamed edge of the lamination of its front and back equal amount layer is axial tangent with core through screw rod 7, and the seamed edge is close to adjacent single-phase iron yoke Seamed edge, wherein the relationship of n and i, j are as follows:I, j and n is the integer greater than 1；I can take arbitrary integer, this implementation In example, n=25, i=9, then j=17, the 16th, 17 and 18 layer of seamed edge is just axial tangent with core through screw rod 7.

Further, as shown in fig. 7, the iron yoke lamination 3 includes that ecto-entad successively staggeredly fall layer by layer by the n-layer of superposition U-shaped lamination, wherein every layer of inverted U lamination is connected with each other by lateral lamination 301, long lamination 302 and short lamination 303, institute The height for stating long lamination 302 is more than the height of lateral lamination 301, and the height of the short lamination 303 is that the height of long lamination 302 subtracts Go the height of lateral lamination 301；

Wherein, the inverted U lamination connection type of singular layer are as follows: as shown in the F1 in Fig. 8, the left end of lateral lamination 301 with Stem is circumscribed in the axial direction, and an external axially placed long lamination 302, the right end and circle inscribe of lateral lamination 301, described Diameter of a circle D is big as the diameter of stem, and the lower surface of lateral lamination 301 connects an axially placed short lamination 303, institute The right end for stating short lamination 303 is flushed with the right end of lateral lamination 301；

Wherein, the inverted U lamination connection type of even numbers layer are as follows: as shown in the F2 in Fig. 8, the left end of lateral lamination 301 with Circle inscribe, the diameter of a circle D is big as the diameter of stem, the lower surface of lateral lamination 301 connect one it is axially placed Short lamination 303, the left end of the short lamination 303 are flushed with the left end of lateral lamination 301；The right end and stem of lateral lamination 301 It is circumscribed in the axial direction, and an external axially placed long lamination 302；

Successively staggeredly the mode of superposition can make the structure of iron yoke stronger to this inverted U lamination ecto-entad layer by layer.

Further, the outer folder 1 is arch channel steel, including outer folder web 101 and outer folder supporting plate 102, institute It states and is provided with iron yoke screw hole 103 on the outer folder web 101 of outer 1 both ends bending place of folder, the single-phase iron yoke presses equilateral triangle Shape is spliced two-by-two, is fixed by the iron yoke screw hole 103 that iron yoke screw rod 104 connects two outer folders 1, the iron yoke spiral shell The quantity of hole 103 and iron yoke screw rod 104 is corresponding, is increased and decreased according to actual needs.

Further, outer clamp insulation 11 is additionally provided between the outer folder 1 and iron yoke lamination 3, the iron yoke is folded Interior clamp insulation 12 is additionally provided between piece 3 and interior folder 2.

Further, the tensioning mechanism 4 is U-shaped solid on folder supporting plate 102 outside the side of outer folder 1 including being arranged in Fixed board 401, the U-shaped screw rod 402 being fixed in U-shaped fixed plate 401 and one end are fixed on U-shaped screw rod 402, the other end is solid Folder supporting plate 102 outside the other side of outer folder 1 is arranged in the drawstring 403 being scheduled on drawstring slot 404, the drawstring slot 404 On.The drawstring 403 folder supporting plate 102 outside the side of outer folder 1 pulls out, and is fixed on around interior folder 2 and iron yoke lamination 3 outer Outside the other side of folder 1 on folder supporting plate 102, interior folder 2 and iron yoke lamination 3 are tensed, simpler, installation side is set Just；4 quantity of tensioning mechanism is arranged according to the size of iron yoke in practice, and iron yoke is bigger, and iron yoke lamination 3 is longer, then fastener The quantity of structure 4 is more.

Further, the fixed mechanism 8 includes basin-shaped washer 801 and fixed screw 802, the punching of the every stem Screw rod 7 both passes through three angles of upper yoke and three angles of lower yoke, and the basin-shaped washer 801 is arranged in the two of core through screw rod 7 End, the lock of fixed screw 802 is at the both ends of the basin-shaped washer 801.In this way, the both ends of three stems are provided with fixed machine Structure 8, to fix the connection of upper yoke, stem and lower yoke.

Further, the lower end of the lower yoke is provided with feet 9, is additionally provided with pad between the feet 9 and lower yoke Foot insulation.

Three single-phase iron yokes are spliced into the three-phase iron yoke of triangle by the utility model, corresponding at three angles of three-phase iron yoke Connect stem, keep the spatial position between each stem symmetrical, and by fixed mechanism fix upper yoke, stem and under Connection between iron yoke constitutes the three-phase stereo iron core of three-phase reactor, using the reactor of the iron core, between three coils Spatial position be equal, thus make comprising the iron core three-phase reactor reactance value it is also equal.

Embodiment two

The present embodiment on the basis of example 1, as shown in figure 9, the difference is that, the iron yoke lamination 3 include by N rectangle lamination being successively layering outside to inside, the lamination after i-th layer that is added to are corresponding with the seamed edge of its next laminates The line of point, the angle with horizontal direction is 30 °, and the seamed edge and punching of the lamination of jth layer and its front and back equal amount layer Screw rod 7 is axial tangent, wherein the relationship of n and i, j are as follows:I, j and n is the integer greater than 1, and the seamed edge is close The seamed edge of adjacent single-phase iron yoke；For being less than i-th layer of lamination, it can be overlapped into cuboid, the iron yoke of the structure is folded Piece 3 operates simpler in superposition.

Embodiment three

The present embodiment on the basis of example 1, as shown in Figure 10, the difference is that, the iron yoke lamination 3 includes The n lamination that ecto-entad is successively layering, the be added to lamination after i-th layer and the seamed edge corresponding points of its next laminates Line, the angle with horizontal direction are 30 °, and the seamed edge and core through screw rod 7 of the lamination of jth layer and its front and back equal amount layer It is axial tangent, wherein the relationship of n and i, j are as follows:I, j and n is the integer greater than 1, and the seamed edge is close to adjacent The seamed edge of single-phase iron yoke；For being less than i-th layer of lamination, other structures can also be laminated in, the isosceles rank such as stood upside down Prismatoid is less than the seamed edge and circle inscribe of i-th layer of lamination, and the diameter of a circle D is big as the diameter of stem, the structure Iron yoke lamination 3 than shown in Fig. 9, i.e., the iron yoke lamination 3 of embodiment two more saves material.

The above is only the preferred embodiment of the utility model only, the protection model being not intended to limit the utility model It encloses, anyone skilled in the art any modification made within spirit of the present utility model and principle is equally replaced It changes and improves, should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of stacked iron core of the three-phase stereo of three-phase reactor, including upper yoke, lower yoke are located at upper yoke and lower yoke Between stem, and the fixed mechanism for fixing iron yoke and stem, it is characterised in that: the upper yoke and lower yoke are The three-phase iron yoke of triangle, the three-phase iron yoke include three single-phase iron yokes, and three single-phase iron yokes splice composition equilateral three two-by-two It is angular；

The quantity of the stem is three, is correspondingly connected with three angles of three-phase iron yoke, the stem includes core through screw rod (7), wears Discus (5) and air gap pad (6) on core through screw rod (7), the discus (5) and air gap pad (6) are alternately placed.

2. a kind of stacked iron core of three-phase stereo of three-phase reactor according to claim 1, it is characterised in that: the iron Silicon steel sheet (504) in cake (5) by discus (5) center radially stack at multiple segments.

3. a kind of stacked iron core of three-phase stereo of three-phase reactor according to claim 2, it is characterised in that: the iron Cake (5) further includes wheel rim (501), spoke (502) and wheel hub (503), and silicon steel sheet (504) setting is in wheel rim (501) and wheel In the segment that spoke (502) is constituted, it is external that the wheel hub (503) is looped around core through screw rod (7).

4. a kind of stacked iron core of three-phase stereo of three-phase reactor according to claim 1, it is characterised in that: the list Phase iron yoke includes outer folder (1), iron yoke lamination (3) and the interior folder (2) that ecto-entad is set gradually, the outer folder (1) with Iron yoke lamination (3) is tensed by tensioning mechanism (4) between interior folder (2).

5. a kind of stacked iron core of three-phase stereo of three-phase reactor according to claim 4, it is characterised in that: the iron Yoke lamination (3) includes the n lamination that ecto-entad is successively layering, and be added to the lamination after i-th layer and its next laminates Seamed edge corresponding points line, the angle with horizontal direction is 30 °, and the lamination of jth layer and its front and back equal amount layer Seamed edge is axial tangent with core through screw rod (7), and the seamed edge is the seamed edge close to adjacent single-phase iron yoke, wherein the relationship of n and i, j Are as follows:I, j and n is the integer greater than 1.

6. a kind of stacked iron core of three-phase stereo of three-phase reactor according to claim 5, it is characterised in that: the iron Yoke lamination (3) includes the n-layer inverted U lamination that ecto-entad is successively staggeredly superimposed layer by layer, wherein every layer of inverted U lamination is by cross To lamination (301), long lamination (302) and short lamination (303) are connected with each other, and the height of the long lamination (302) is more than cross To the height of lamination (301), the height of the short lamination (303) is that the height of long lamination (302) subtracts lateral lamination (301) Highly；

Wherein, the inverted U lamination connection type of singular layer are as follows: the left end of lateral lamination (301) and stem are circumscribed in the axial direction, and External one axially placed long lamination (302), the right end and circle inscribe, the diameter of a circle D and stem of lateral lamination (301) Diameter it is equally big, the lower surface of lateral lamination (301) connects an axially placed short lamination (303), the short lamination (303) right end is flushed with the right end of lateral lamination (301)；

Wherein, the inverted U lamination connection type of even numbers layer are as follows: the left end of lateral lamination (301) and circle inscribe, the diameter of a circle D is big as the diameter of stem, and the lower surface of lateral lamination (301) connects an axially placed short lamination (303), described short The left end of lamination (303) is flushed with the left end of lateral lamination (301)；The right end and stem of lateral lamination (301) are outer in the axial direction It cuts, and an external axially placed long lamination (302).

7. a kind of stacked iron core of three-phase stereo of three-phase reactor according to claim 5, it is characterised in that: the iron Yoke lamination (3) includes the n rectangle lamination that ecto-entad is successively layering, and the lamination after i-th layer that is added to is next with it The line of the seamed edge corresponding points of laminates, the angle with horizontal direction are 30 °, and jth layer and equal amount layer before and after it The seamed edge of lamination is axial tangent with core through screw rod (7), wherein the relationship of n and i, j are as follows:I, j and n is greater than 1 Integer, the seamed edge are the seamed edge close to adjacent single-phase iron yoke.

8. a kind of stacked iron core of three-phase stereo of three-phase reactor according to claim 4, it is characterised in that: described outer Folder (1) is arch channel steel, including outer folder web (101) and outer folder supporting plate (102), outer folder (1) the both ends bending It is provided with iron yoke screw hole (103) on the outer folder web (101) at place, the single-phase iron yoke is spelled two-by-two by equilateral triangle It connects, is fixed by the iron yoke screw hole (103) that iron yoke screw rod (104) connect two outer folders (1).

9. a kind of stacked iron core of three-phase stereo of three-phase reactor according to claim 4, it is characterised in that: the drawing Tight mechanism (4) include be arranged U-shaped fixed plate (401) outside the side of outer folder (1) on folder supporting plate (102), be fixed on it is U-shaped U-shaped screw rod (402) and one end in fixed plate (401) are fixed on U-shaped screw rod (402), the other end is fixed on drawstring slot (404) drawstring (403) on, the drawstring slot (404) are arranged outside the other side of outer folder (1) on folder supporting plate (102).

10. a kind of stacked iron core of three-phase stereo of three-phase reactor according to claim 1, it is characterised in that: described Fixed mechanism (8) includes basin-shaped washer (801) and fixed screw (802), and the core through screw rod (7) of the every stem both passes through Three angles of iron yoke and three angles of lower yoke, the basin-shaped washer (801) setting are described solid at the both ends of core through screw rod (7) Screw (802) lock is determined at the both ends of the basin-shaped washer (801).