CN202601372U

CN202601372U - Magnetic leakage transformer

Info

Publication number: CN202601372U
Application number: CN 201220009221
Authority: CN
Inventors: 谈征宇; 朱继
Original assignee: SHANGHAI YIYA ELECTRONIC INSTRUMENT CO Ltd
Current assignee: SHANGHAI YIYA ELECTRONIC INSTRUMENT CO Ltd
Priority date: 2012-01-10
Filing date: 2012-01-10
Publication date: 2012-12-12
Anticipated expiration: 2022-01-10

Abstract

The utility model provides a magnetic leakage transformer, which mainly comprises: a magnetic core column, where the magnetic core column is a T-shaped magnetic core column composed of a top and a cylinder; and a pair of magnet yokes, wherein the magnet yokes are arranged at two sides of the magnetic core column respectively and form a complete magnetic structure together with the magnetic core column, and the periphery of the magnetic core column is provided with a multi-step step structure. During usage, free magnetic lines at two end faces of the magnetic core column can be fully utilized and absorbed, electromagnetic transfer efficiency of the transformer is improved, self power consumption of the transformer is lowered, copper consumption is reduced, and manufacture cost of the transformer is lowered.

Description

Magnetic flux leakage-type transformer

Technical field

The utility model relates to the high-tension transformer field, relates in particular to a kind of magnetic flux leakage-type transformer that is applicable to neon light.

Background technology

Magnetic flux leakage-type transformer belongs to the boost category of dry-type transformer of leakage field, is used for the electronic equipment that load sharply changes and require the state that progressively tends towards stability, like equipment such as neon lamp power source, ionic pump power supplys.It is bigger that this type load shows as when starting working impedance, needs higher transient voltage; And when steady operation, load impedance is less, needs load current limit in permissible value, so that it can operate as normal.

For example, when magnetic flux leakage-type transformer is applied to neon light, use as a lamp bright before, this magnetic flux leakage-type transformer can provide a voltage higher than power supply to start lamp, this magnetic flux leakage-type transformer can play the effect of current limliting again after lamp is lighted, and lamp is stably worked.

Fig. 3 a schematically shows a kind of coil magnetic field figure of traditional magnetic flux leakage-type transformer.Shown in Fig. 3 a, the cross section of the cylinder of the core post 301 of the magnetic flux leakage-type transformer of prior art is generally rectangular, and such structure can make the edge of core post the dissociation of the magnetic line of force occur.For example, the range of scatter of the magnetic line of force 301a of the iron core 302a edge among Fig. 3 a is bigger, has free phenomenon, and it is outside that wherein coil 303a is coated on iron core 302a.

The utility model content

To the above-mentioned deficiency of prior art, the utility model provides a kind of novel magnetic flux leakage-type transformer.Particularly, the magnetic flux leakage-type transformer of the utility model mainly comprises: core post, said core post are the T type core post that is made up of a top and a cylinder; And pair of magnetic yoke, be arranged at the both sides of said core post respectively, to constitute a complete magnetic structure with said core post, wherein, have multistage hierarchic structure around the said cylinder of said core post respectively.

According to a preferred embodiment of the utility model, in above-mentioned magnetic flux leakage-type transformer, the cross section of the said cylinder of said core post is similar round.

According to a preferred embodiment of the utility model, in above-mentioned magnetic flux leakage-type transformer, said pair of magnetic yoke is the L type respectively, and said pair of magnetic yoke constitutes the complete magnetic structure of day font with said core post.

A preferred embodiment according to the utility model in above-mentioned magnetic flux leakage-type transformer, also comprises: coil is placed on the cylinder of said T type core post.

According to a preferred embodiment of the utility model, in above-mentioned magnetic flux leakage-type transformer, the quantity of said coil is two, and is embedded with the magnetic shunt piece between said two coils.

The magnetic flux leakage-type transformer of the utility model makes the horizontal cross sectional geometry of this core post be an approximate circle shape through around the cylinder of core post, adopting multistage hierarchic structure.Like this, in use, the absorption that is fully utilized of the free magnetic power of core post both ends of the surface has improved the electromagnetic conversion efficient of transformer.On the other hand, according to the mathematics extreme value theory, the girth in circle shape cross section is the shortest under equal sectional area.Therefore, the structure of the utility model can effectively shorten the girth of the every number of turn of coil, has reduced the resistance of direct current copper and the corresponding hear rate of copper cash; Reduced the oneself power consumption of transformer; Practice thrift copper consumption, reduced the manufacturing cost of transformer, reached the double effects of energy-saving material-saving.

Should be appreciated that the above generality of the utility model is described and following detailed description all is exemplary and illustrative, and be intended to further explanation is provided for as claimed in claim the utility model.

Description of drawings

Comprise that accompanying drawing is for providing the utility model further to be understood, they are included and are constituted the application's a part, and accompanying drawing shows the embodiment of the utility model, and play the effect of explaining the utility model principle with this specification.In the accompanying drawing:

Fig. 1 is the decomposition texture according to the magnetic flux leakage-type transformer of a preferred embodiment of the utility model.

Fig. 2 schematically shows the magnetic circuit figure of the magnetic flux leakage-type transformer of Fig. 1.

Fig. 3 a schematically shows the coil magnetic field figure of traditional transformer.

Fig. 3 b schematically shows the coil magnetic field figure according to the magnetic flux leakage-type transformer of the utility model.

Embodiment

The embodiment of the utility model will be described with reference to the drawings now in detail.

Fig. 1 is the decomposition texture according to the magnetic flux leakage-type transformer of a preferred embodiment of the utility model.As shown in Figure 1, the magnetic flux leakage-type transformer 100 of the utility model mainly comprises: core post 101,

yoke

102a and 102b, coil 103 and leakage field sheet 104.

In the embodiment shown in fig. 1, core post 101 is the T type core post that are made up of a top 105 and a cylinder 106.In addition; Yoke 102a and yoke 102b are

type respectively, and are arranged at the both sides of core post 101 respectively.This pair of magnetic yoke can constitute the complete magnetic structure of type with core post 101, and is as shown in Figure 2.

In addition, in this preferred embodiment, two coils 103 all are placed on the cylinder 106 of said T type core post 101, and magnetic shunt piece 104 is embedded between said two coils 103.Certainly, those skilled in the art will appreciate that and in the utility model, also can adopt the coil of other known type and the set-up mode of magnetic shunt piece that i.e. the present invention is not limited to the coil that Fig. 1 illustrates and the set-up mode of magnetic shunt piece.

The structure that constitutes with mode shown in Figure 1 will obtain magnetic circuit figure as shown in Figure 2.Among Fig. 2, the dotted line 201 expression magnetic lines of force, the arrow on the dotted line is represented the direction of the formed magnetic line of force of magnetic flux leakage-type transformer of the utility model.In addition, the magnetic line of force of the 202 expression magnetic shunts of the dotted line among Fig. 2.

Rotate back into Fig. 1, as shown in Figure 1, in the magnetic flux leakage-type transformer 100 of the utility model, have multistage hierarchic structure around the cylinder 106 of core post 101 respectively.Please be simultaneously with reference to figure 1 and Fig. 3 b, four edges of the level cross-sectionn of this core post 101 constitute a plurality of chamfering ladders 107 respectively, so that the shape of these four corner type of forming arcs.Therefore, the entire cross section of the cylinder 106 of the core post 101 of the magnetic flux leakage-type transformer 100 of the utility model will be rendered as and be similar to circle.

Fig. 3 b schematically shows the coil magnetic field figure according to the magnetic flux leakage-type transformer of the utility model.Magnetic chart than the rectangular cross section cylinder of the prior art shown in Fig. 3 a; The absorption that can be fully utilized of the free magnetic line of force 304 of four edges of the core post 101 of the utility model shown in Fig. 3 b, thus the electromagnetic conversion efficient of this magnetic flux leakage-type transformer 100 can effectively be improved.

In addition, according to the mathematics extreme value theory, the girth in circle shape cross section is the shortest under equal sectional area, so the core post structure of the utility model can effectively shorten the girth that twines the every number of turn of coil on it.Because the coil turn on the core post is huge; Therefore the structure of the utility model can significantly reduce the resistance of direct current copper and the corresponding hear rate of copper cash, has reduced the oneself power consumption of transformer, has practiced thrift copper consumption; Reduce the manufacturing cost of transformer, thereby reached the double effects of energy-saving material-saving.

Those skilled in the art can be obvious, can carry out various modifications and modification to the above-mentioned exemplary embodiment of the utility model and do not depart from the spirit and the scope of the utility model.Therefore, be intended to make the utility model to cover modification and the modification that drops in appended claims and the come scope thereof to the utility model.

Claims

1. a magnetic flux leakage-type transformer is characterized in that, comprising:

Core post, said core post are the T type core post that is made up of a top and a cylinder; And

Pair of magnetic yoke is arranged at the both sides of said core post respectively, constituting a complete magnetic structure with said core post,

Wherein, the said cylinder of said core post around have multistage hierarchic structure respectively.

2. magnetic flux leakage-type transformer as claimed in claim 1 is characterized in that the cross section of the said cylinder of said core post is similar round.

3. magnetic flux leakage-type transformer as claimed in claim 1 is characterized in that said pair of magnetic yoke is the L type, and said pair of magnetic yoke constitutes the complete magnetic structure of day font with said core post.

4. magnetic flux leakage-type transformer as claimed in claim 1 is characterized in that, also comprises:

Coil is placed on the cylinder of said T type core post.

5. magnetic flux leakage-type transformer as claimed in claim 4 is characterized in that, the quantity of said coil is two, and is embedded with the magnetic shunt piece between said two coils.