CN206480479U

CN206480479U - A kind of transformer iron core

Info

Publication number: CN206480479U
Application number: CN201720214861.9U
Authority: CN
Inventors: 王成
Original assignee: Foshan Hundred Cisco Iron Core Manufacturing Co Ltd
Current assignee: Foshan Hundred Cisco Iron Core Manufacturing Co Ltd
Priority date: 2017-03-07
Filing date: 2017-03-07
Publication date: 2017-09-08
Anticipated expiration: 2027-03-07

Abstract

The utility model discloses a kind of transformer iron core, including transformation iron core body, the inner chamber of the transformation iron core body is provided with spring, and the two ends of spring are fixedly installed on the two ends of transformation iron core inner chamber.The utility model is when in use by the way that copper cash to be wrapped in the outside of iron core body; and device is fixed by the spring of iron core body interior; copper cash is protected; the winding of copper cash can be made compacter; and the magnetic conductive area of iron core is added on the premise of mechanical strength is met; overlapping area is small; the region that magnetic flux is passed through just accordingly increases small; so as to reduce open circuit loss; and the magnetic conductive area of iron core is added on the premise of mechanical strength is met; overlapping area is small, the region that magnetic flux is passed through just accordingly increase it is small, so as to reduce open circuit loss.

Description

A kind of transformer iron core

Technical field

The utility model is related to transformation core technology field, specially a kind of transformer iron core.

Background technology

At present, transformer is manufactured according to electromagnetic induction principle.Magnetic energy is the medium of electric energy conversion, and iron core is transformer Magnetic circuit part, the main function of iron core is magnetic conduction, and iron core is made up of magnetic conductivity very high cold-reduced silicon sheet, and iron core is in excitation When, open circuit loss can be produced, the quadergy of absorption system forms no-load current, and iron core will produce temperature rise, to transformer Speech, the temperature rise of iron core can influence the temperature rise of low pressure winding.Iron core can also produce noise in excitation, can also when full voltage closes a floodgate Excitation surge current is produced, the structure of iron core can also influence on partial discharge, because iron core is the electrode of a ground connection, core lamination stack is electricity again Capacitive is grounded, in addition, the open circuit loss of iron core is mainly caused by the magnetic hystersis loss in lamination, eddy-current loss and no-load current Resistance loss composition, in open circuit loss be mostly lamination in loss, the resistance of no-load current in the windings Usual very little is lost, can be ignored, in the case where applied voltage is certain, open circuit loss is unrelated with transformer load, it Influenceed by supply voltage waveform, flux waveformses distortion can also cause open circuit loss to increase, the rotation of post piece and yoke piece transitional region The open circuit loss of iron core can be influenceed by turning magnetic flux, and iron core magnetic flux density is influence transformer core open circuit loss and no-load current Important parameter, therefore to reduce open circuit loss, it is necessary to making the magnetic flux distribution of iron core various pieces tends to be uniform.

Utility model content

The purpose of this utility model is to provide a kind of transformer iron core, with asking for solving to propose in above-mentioned background technology Topic, is had an advantageous effect in that：The equipment when in use, by the way that copper cash to be wrapped in the outside of iron core body, and passes through iron Device is fixed the spring of core body interior, and copper cash is protected, and the winding of copper cash can be made compacter, and full The magnetic conductive area of iron core is added on the premise of sufficient mechanical strength, overlapping area is small, the region that magnetic flux is passed through just accordingly increase it is small, from And reduce open circuit loss.

To achieve the above object, the utility model provides following technical scheme：A kind of transformer iron core, including transformation iron core Body, the inner chamber of the transformation iron core body is provided with spring, and the two ends of spring are fixedly installed on transformation iron core inner chamber Two ends.

It is preferred that, the inside of the transformation iron core is evenly equipped with spring, and quantity is three.

It is preferred that, the transformation iron core is made up of core winding, and to penetrate layer core as standard during welding, solder joint can not Protrusion.

It is preferred that, the transformation iron core internal layer is fitted closed seamless gap, no flexural deformation with core.

It is preferred that, the transformation iron core is combined by two and half iron cores, and the identical gap between two and half iron cores is small In 0.03mm.

Compared with prior art, the beneficial effects of the utility model are：The equipment when in use, by the way that copper cash is wrapped in The outside of iron core body, and device is fixed by the spring of iron core body interior, copper cash is protected, copper can be made The winding of line is compacter, and adds on the premise of mechanical strength is met the magnetic conductive area of iron core, and overlapping area is small, magnetic flux The region passed through just accordingly increase it is small, so as to reduce open circuit loss.

Brief description of the drawings

Fig. 1 is top view of the present utility model；

Fig. 2 is sectional view of the present utility model.

In figure：1- springs；2- transformation iron core bodies.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.

Refer to Fig. 1 and Fig. 2, a kind of embodiment that the utility model is provided：A kind of transformer iron core, including transformation iron core Body 2, the inner chamber of transformation iron core body 2 is provided with spring 1, and the two ends of spring 1 are fixedly installed on the inner chamber of transformation iron core 2 Two ends.

Operation principle：In use, the outside by the way that copper cash to be wrapped in iron core body 2, and by iron core body 2 inside Device is fixed spring 1, so that copper cash winding is even closer, and copper cash can be protected.

It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation Involved claim.

Claims

1. a kind of transformer iron core, including transformation iron core body（2）, it is characterised in that：The transformation iron core body（2）Inner chamber It is provided with spring（1）, and spring（1）Two ends be fixedly installed on transformation iron core（2）The two ends of inner chamber.

2. a kind of transformer iron core according to claim 1, it is characterised in that：The transformation iron core（2）Inside it is uniform There is spring（1）, and quantity is three.

3. a kind of transformer iron core according to claim 1, it is characterised in that：The transformation iron core（2）Wound by core It is made, and to penetrate 2 layers of core as standard during welding, solder joint can not protrude.

4. a kind of transformer iron core according to claim 1, it is characterised in that：The transformation iron core（2）Internal layer and core Laminating closed seamless gap, no flexural deformation.

5. a kind of transformer iron core according to claim 1, it is characterised in that：The transformation iron core（2）By two and half iron Core is combined, and the identical gap between two and half iron cores is less than 0.03mm.