CN208908172U - Transformer and its sub-frame iron core - Google Patents

Abstract

The utility model discloses a kind of transformer and its sub-frame iron cores, sub-frame iron core includes the lamination of multilayer stack together, every layer of lamination includes multiple points of laminations, dividing lamination described in each is trapezoidal, in every layer of lamination between frame oil duct cooperate divide lamination to be first point of lamination, two waist edges of first point of lamination divide the waist edge of lamination to connect with the waist edge of second point of lamination and third respectively；Second point of lamination and third divide the maximum distance between lamination less than the length on the long bottom edge of first point of lamination.It so ensure that the long bottom edge stack of first point of lamination of only multilayer lamination forms the face that oil duct cooperates between frame, avoid the technique that wedge angle is decapitated, simultaneously avoid be decapitated wedge angle formed burr the case where, substantially increase sub-frame iron core packaging efficiency it is low and operation it is simpler.

Description

Transformer and its sub-frame iron core

Technical field

The utility model relates to transformer technology fields, more specifically to a kind of transformer and its sub-frame iron core.

Background technique

As super-pressure and extra-high voltage grid construction and development, the demand to the huge transformer of large capacity high voltage are also more next It is bigger, but remote districts that are meagrely-populated, having inconvenient traffic often are built in many power stations in, and this is just caused to the transport of high-power transformer Very big difficulty.

The application of field assembled transformer just solves problem above, the sub-frame iron core structure as assembly type transformer Just become the important component of on-site assembly transformer.Oil duct between frame is typically provided between the frame of sub-frame iron core, multilayer lamination is folded Product forms sub-frame iron core, and every layer of lamination includes multiple points of laminations 02.As shown in Figure 1, multiple points of laminations 02 of multilayer are handed over When misconnection stitches stack, it often will appear wedge angle 01, to avoid oil duct between wedge angle 01 and frame from interfering, oil duct two sides are stretched out between reducing frame Overlapped the risk of wedge angle 01 improves transformer reliability, and wedge angle 01 will be stretched out on the face that oil duct cooperates between frame by, which generally taking, cuts The method gone.However, often being there is burr after wedge angle 01 is decapitated, the performance for dividing lamination is influenced.In addition, assembling divides frame every time It requires to be decapitated the wedge angle stretched out on the face that oil duct cooperates between frame when iron core, causes packaging efficiency low, it is cumbersome.

It is current ability in conclusion how to efficiently solve the low and cumbersome problem of sub-frame iron core packaging efficiency Field technique personnel's urgent problem.

Utility model content

In view of this, first of the utility model is designed to provide a kind of sub-frame iron core, the structure of the sub-frame iron core Design can efficiently solve the low and cumbersome problem of sub-frame iron core packaging efficiency, and second purpose of the utility model is A kind of transformer including above-mentioned sub-frame iron core is provided.

In order to reach above-mentioned first purpose, the utility model is provided the following technical solutions:

A kind of sub-frame iron core of transformer, the lamination including multilayer stack together, every layer of lamination include multiple points Lamination, it is each described that lamination is divided to be trapezoidal, in every layer of lamination between frame oil duct cooperate divide lamination to be first point Lamination, two waist edges of first point of lamination divide the waist edge of lamination with the waist edge of second point of lamination and third respectively Connect；

The length that second point of lamination and third divide the maximum distance between lamination to be less than first point of lamination The length on bottom edge.

Preferably, in the sub-frame iron core of above-mentioned transformer, which includes two points of frames, each described to divide frame by more A frame side surrounds jointly, and each frame side includes that multilayer divides lamination, and every layer of each frame side divides lamination to include one point Lamination.

Preferably, described that frame is divided to be that rectangle divides frame in the sub-frame iron core of above-mentioned transformer.

Preferably, in the sub-frame iron core of above-mentioned transformer, iron core chip size is divided on the opposite two frame side for being divided to frame It is identical with shape.

Preferably, in the sub-frame iron core of above-mentioned transformer, the angle between each trapezoidal bottom edge and waist edge is 45°。

Preferably, described that lamination is divided to be silicon steel sheet in the sub-frame iron core of above-mentioned transformer.

A kind of transformer, including the sub-frame iron core as described in any one of above-mentioned.

From the foregoing, it will be observed that in the sub-frame iron core provided in the utility model embodiment, due to second point of lamination and third point Maximum distance between lamination less than the long bottom edge of first point of lamination length, ensure that the first of only multilayer lamination The long bottom edge stack of point lamination forms the face that oil duct cooperates between frame, and second point of lamination and third divide lamination to be respectively positioned on the The same side of one point of lamination and the other side formation wedge angle that will not extend to first point of lamination.It is avoided with this and wedge angle is decapitated Technique, while avoid be decapitated wedge angle formed burr the case where, substantially increase sub-frame iron core packaging efficiency it is low and operation more Add simple.

In order to reach above-mentioned second purpose, the utility model additionally provides a kind of transformer, which includes above-mentioned Any sub-frame iron core.Since above-mentioned sub-frame iron core has above-mentioned technique effect, the transformer with the sub-frame iron core is also answered With corresponding technical effect.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the top view that the sub-frame iron core before wedge angle is decapitated in the prior art；

Fig. 2 is the top view that the sub-frame iron core after wedge angle is decapitated in the prior art；

Fig. 3 is the top view of sub-frame iron core provided by the embodiment of the utility model.

In Fig. 1-2:

01- wedge angle, 02- divide lamination；

In Fig. 3:

1- first divides lamination, 2- second that lamination, 3- third is divided to divide lamination, 4- the 4th point of lamination.

Specific embodiment

First of the utility model is designed to provide a kind of sub-frame iron core, and the structure design of the sub-frame iron core can have Effect ground solves the problems, such as that sub-frame iron core packaging efficiency is low and cumbersome, and second purpose of the utility model is to provide a kind of packet Include the transformer of above-mentioned sub-frame iron core.

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", " left side " and " right side " The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, and being merely for convenience of description, this is practical new Type and simplified description, rather than the position of indication or suggestion meaning or element must have particular orientation, with specific orientation structure At and operation, therefore should not be understood as the limitation of the utility model.In addition, term " first ", " second " are used for description purposes only, It is not understood to indicate or imply relative importance.

Referring to Fig. 3, the sub-frame iron core provided in the utility model embodiment, the iron core including multilayer stack together Piece, every layer of lamination include multiple points of laminations, it is preferred that emphasis is, each dividing lamination is trapezoidal, each divides lamination packet Two waist edges and two bottom edges are included, two bottom edges are parallel to each other and length is different, and the both ends of waist edge are connect with two bottom edges respectively. In every layer of lamination between frame oil duct cooperate divide lamination be first point of lamination 1, first point of lamination 1 of multilayer lamination Stack is to the face for being formed together between frame oil duct and cooperating.Two waist edges of first point of lamination 1 respectively with second point of lamination 2 Waist edge and third divide the waist edge of lamination 3 to connect, i.e., and one of a waist edge of second point lamination 2 and first point of lamination 1 Waist edge connects, and third divides a waist edge of lamination 3 to connect with another waist edge of first point of lamination 1.In addition, second point of iron Lamination 2 and third divide the maximum distance between lamination 3 less than the length on the long bottom edge of first point of lamination 1, wherein second point The maximum distance that lamination 2 and third are divided between lamination 3 is second point of lamination 2 and third divides lamination 3 farthest away from right The distance between the point of side, be arranged such ensure that the long bottom edge stack of first point of lamination 1 of only multilayer lamination formed with The face that oil duct cooperates between frame, the same side and that second point of lamination 2 and third divide lamination 3 to be respectively positioned on first point of lamination 1 The other side that first point of lamination 1 will not be extended to forms wedge angle.

From the foregoing, it will be observed that in the sub-frame iron core provided in the utility model embodiment, due to second point of lamination 2 and third point Maximum distance between lamination 3 less than the long bottom edge of first point of lamination 1 length, ensure that the of only multilayer lamination The long bottom edge stack of one point of lamination 1 forms the face that oil duct cooperates between frame, and second point of lamination 2 and third divide lamination 3 equal Positioned at first point of lamination 1 the same side and will not extend to first point of lamination 1 the other side formed wedge angle.It is avoided with this The technique of wedge angle is decapitated, while avoiding and the case where wedge angle forms burr is decapitated, it is low to substantially increase sub-frame iron core packaging efficiency And operation is simpler.

It should be noted that the waist edge of above-mentioned first point of lamination 1 and second point of lamination 2 or third divide lamination 3 Waist edge connects, i.e., between waist edge and second point of lamination 2 or the third of first point lamination 1 are divided between the waist edge of lamination 3 and had Gap or contact.

In one embodiment, which includes two points of frames, each divides frame to be surrounded jointly by multiple frame sides, often A frame side includes that multilayer divides lamination, and every layer of each frame side divides lamination to include a point of lamination.I.e. each frame side it is every Layer divides lamination to include one and trapezoidal divides lamination.Certainly, every layer of each frame side divides lamination to include multiple trapezoidal points Lamination is not limited thereto.

Further, each dividing frame is that rectangle divides frame.Divide frame by the successively end to end formation of four frame sides.Each divide frame Every layer of lamination include that first point of lamination, 1, second point of lamination 2, third divide lamination 3 and the 4th point of lamination 4.Multilayer The long bottom edge stack of first point of lamination 1 of lamination forms the face that oil duct cooperates between frame.The bottom edge of first point of lamination 1 with The bottom edge of second point of lamination 2 is mutually perpendicular to, and the bottom edge of first point of lamination 1 also divides the bottom edge of lamination 3 mutually to hang down with third Directly, the bottom edge of second point of lamination 2 divides the bottom edge of lamination 3 to be parallel to each other with third.

Certainly, dividing frame can also be other shapes, including more frame sides, be not limited thereto.

Wherein, the opposite two frame side of above-mentioned point of frame divides lamination size and shape identical.Certainly, divide the opposite of frame Two frame sides divide iron core chip size that can also be slightly different, be not limited thereto.

In another embodiment, the angle between each trapezoidal bottom edge and waist edge is 45 °.I.e. each trapezoidal is Trapezoidal, waist, and the angle of upper bottom edge and waist edge is 45 °, the angle of bottom and waist edge is 45 °.Certainly, two adjacent ladders Can be with the angle between one bottom edge and waist edge in shape piece 30 ° another bottom edge and waist edge between angle be 60 °, This is not construed as limiting.

In above-mentioned each embodiment, dividing lamination is silicon steel sheet, can be not limited thereto certainly with other materials.

The sub-frame iron core provided in based on the above embodiment, the utility model additionally provide a kind of transformer, the transformer Including any one sub-frame iron core in above-described embodiment.Since the transformer uses the sub-frame iron core in above-described embodiment, institute Above-described embodiment is please referred to the beneficial effect of the transformer.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (7)

1. a kind of sub-frame iron core of transformer, the lamination including multilayer stack together, every layer of lamination include multiple points of iron Lamination, which is characterized in that it is each described that lamination is divided to be trapezoidal, in every layer of lamination between frame oil duct cooperate divide lamination For first point of lamination (1), two waist edges of first point of lamination (1) respectively with the waist edge of second point of lamination (2) and Third divides the waist edge of lamination (3) to connect；

Second point of lamination (2) and third divide the maximum distance between lamination (3) to be less than first point of lamination (1) Long bottom edge length.

2. the sub-frame iron core of transformer according to claim 1, which is characterized in that the sub-frame iron core includes two points of frames, Frame is divided to be surrounded jointly by multiple frame sides described in each, each frame side includes that multilayer divides lamination, and every layer of each frame side is divided Lamination includes a point of lamination.

3. the sub-frame iron core of transformer according to claim 2, which is characterized in that described that frame is divided to be that rectangle divides frame.

4. the sub-frame iron core of transformer according to claim 3, which is characterized in that the opposite two frame side for being divided to frame Divide lamination size and shape identical.

5. the sub-frame iron core of transformer according to claim 1, which is characterized in that each trapezoidal bottom edge and waist Angle between side is 45 °.

6. the sub-frame iron core of transformer according to claim 1, which is characterized in that described that lamination is divided to be silicon steel sheet.

7. a kind of transformer, which is characterized in that including sub-frame iron core such as of any of claims 1-6.