CN204178858U

CN204178858U - EI type transformer

Info

Publication number: CN204178858U
Application number: CN201420732344.7U
Authority: CN
Inventors: 徐超
Original assignee: TAOYUAN ZHONGCHI ELECTRONIC PRODUCT FACTORY
Current assignee: TAOYUAN ZHONGCHI ELECTRONIC PRODUCT FACTORY
Priority date: 2014-11-27
Filing date: 2014-11-27
Publication date: 2015-02-25
Anticipated expiration: 2024-11-27

Abstract

The utility model relates to a kind of EI type transformer, comprise insulation shell, day font iron core, insulated coil skeleton and the coil of winding on described insulated coil skeleton, described day font iron core, insulated coil skeleton and coil be all arranged in described insulation shell, is extended with two hard contacts from described insulation shell; Described day font iron core is provided with at least one leakage field space iron core.The utility model is provided with at least one leakage field space iron core in the leakage field space of EI type transformer, and leakage flux can be made to be significantly improved, and then improves transformer impedance, greatly reduces the stray loss of transformer, reduces the adverse effect of leakage field simultaneously.

Description

EI type transformer

Technical field

The utility model relates to field transformer, particularly relates to a kind of EI type transformer.

Background technology

Transformer is a kind of converting electric power and static electromagnetic device electric energy being delivered to another circuit from a circuit.EI transformer is a kind of in electronic transformer, and its iron core is by " E " matrix and " " matrix stacks up I, is referred to as EI transformer according to its shape.EI transformer generally uses as power frequency (low frequency) transformer, power transformer and audio frequency transformer.

Current EI transformer can only realize general impedance, cannot realize high impedance, and more the shell of part EI transformer has and adopt plastics or ceramic material, easily damaged because of collision, and then may threaten the safety of user.

Utility model content

The purpose of this utility model proposes a kind of EI type transformer, can improve transformer impedance.

For achieving the above object, the utility model provides a kind of EI type transformer, comprise insulation shell, day font iron core, insulated coil skeleton and the coil of winding on described insulated coil skeleton, described day font iron core, insulated coil skeleton and coil be all arranged in described insulation shell, is extended with two hard contacts from described insulation shell; Described day font iron core is provided with at least one leakage field space iron core.

Further, described leakage field space iron core is made up of permeability magnetic material and gap backing plate, and is positioned at the centre position of described day font iron core.

Further, described day font iron core be formed by stacking by E type silicon steel sheet and I type silicon steel sheet, and the middle part extension of described E type silicon steel sheet is described leakage field space iron core.

Further, crashproof layer is respectively equipped with in the upper and lower surface of described insulation shell.

Further, described crashproof layer adopts fiber.

Further, described hard contact is connected with described insulated coil skeleton.

Based on technique scheme, the utility model is provided with at least one leakage field space iron core in the leakage field space of EI type transformer, and leakage flux can be made to be significantly improved, and then improves transformer impedance, greatly reduce the stray loss of transformer, reduce the adverse effect of leakage field simultaneously.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the structural representation of an embodiment of the utility model EI type transformer.

Fig. 2 is the structural representation of the Sino-Japan font iron core of the utility model EI type transformer embodiments.

Embodiment

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

See Fig. 1,2, the EI type transformer of the present embodiment comprise insulation shell 1, day font iron core 2, insulated coil skeleton 3 and the coil 4 of winding on insulated coil skeleton 3, iron core 2, insulated coil skeleton 3 and coil 4 are all arranged in insulation shell 1, are extended with two hard contacts 5 from insulation shell 1.This hard contact 5 is connected with insulated coil skeleton 3.Day font iron core 2 is provided with at least one leakage field space iron core 7.

Owing to being provided with at least one leakage field space iron core in the leakage field space of EI type transformer, leakage flux can be made to be significantly improved, and then improve transformer impedance, greatly reduce the stray loss of transformer, reduce the adverse effect of leakage field simultaneously.

As shown in Figure 2, leakage field space iron core 7 is made up of permeability magnetic material 72 and gap backing plate 71, is positioned at a day centre position for font iron core 2.And day font iron core 2 to be formed by stacking by E type silicon steel sheet 21 and I type silicon steel sheet 22, and the middle part extension of E type silicon steel sheet 21 is leakage field space iron core 7.

Preferably, can arrange crashproof layer 6 respectively in the upper and lower surface of insulation shell, this crashproof layer 6 can avoid EI type transformer impaired because of collision, improves use safety.Crashproof layer 6 preferably adopts fiber.

Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to embodiment of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.

Claims

1. an EI type transformer, it is characterized in that, comprise insulation shell, day font iron core, insulated coil skeleton and the coil of winding on described insulated coil skeleton, described day font iron core, insulated coil skeleton and coil be all arranged in described insulation shell, is extended with two hard contacts from described insulation shell; Described day font iron core is provided with at least one leakage field space iron core.

2. EI type transformer according to claim 1, is characterized in that, described leakage field space iron core is made up of permeability magnetic material and gap backing plate, and is positioned at the centre position of described day font iron core.

3. EI type transformer according to claim 1, is characterized in that, described day font iron core be formed by stacking by E type silicon steel sheet and I type silicon steel sheet, and the middle part extension of described E type silicon steel sheet is described leakage field space iron core.

4. EI type transformer according to claim 1, is characterized in that, be respectively equipped with crashproof layer in the upper and lower surface of described insulation shell.

5. EI type transformer according to claim 4, is characterized in that, described crashproof layer adopts fiber.

6. EI type transformer according to claim 1, is characterized in that, described hard contact is connected with described insulated coil skeleton.