CN2286920Y

CN2286920Y - Transformer with new-type iron-core structure

Info

Publication number: CN2286920Y
Application number: CN 97200573
Authority: CN
Inventors: 李少夫; 齐兰香
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-14
Filing date: 1997-01-14
Publication date: 1998-07-29
Anticipated expiration: 2007-01-14

Abstract

The utility model relates to a transformer with a novel iron core structure, which is characterized in that ratio of the border width of an E-shaped or a Chinese character 'shan'-shaped transformer iron core and tongue width is between 0.8 to 2.4, and a broadside type transformer is formed. The utility model can reduce the outer magnetic leakage of a transformer, can reduce the noise of a power transformer, interferences to exterior can be reduced, signal transmission quality of an audio transformer can be enhanced, etc. The utility model is suitable for the use on a power transformer or an audio transformer in electric appliances, instruments, and electroacoustic equipment.

Description

A kind of novel core structure transformer

The utility model relates to a kind of core structure of transformer

At present, the wide ratio of the E type that transformer uses or the border width of mountain font core lamination stack and tongue is all less than 0.7, and standard design is between the 0.5-0.68.Usually, for audio frequency transformer, after the requirement of having satisfied no-load voltage ratio and power, another important techniques index is exactly that requirement has high signal transmission quality, for a long time, people were doing a large amount of work aspect the raising HD Audio transformer signal transmission quality, carried out around the following aspects but conclude all:

1) winding method of the coil of improvement transformer reduces distributed capacitance and leakage inductance as far as possible;

2) make more rational coil design parameter to improve " sense of hearing ";

3) use more heavy in section iron core, make transformer be fully operational in the magnetic hysteresis linear zone;

4) use consummate manufacturing process and select better raw material for use.

Though in reform in the past, transformer performance is increased, up to the present, in the HD Audio scope, the design of transformer and the quality of making the signal transmission that still can not reach comparatively desirable.

The purpose of this utility model is to provide a kind of and reduces the outside leakage flux of transformer, so that transformer has the novel core structure transformer of signal transmission quality and power supply degree of purity preferably as audio frequency transformer or power transformer.

The utility model purpose realizes that key is: the wide ratio of the border width of E type or mountain font transformer core and tongue constitutes broadside type transformer between 0.8-2.4.

Aforesaid novel core structure transformer can be equipped with additional broadening iron core frame on traditional transformer core lamination edge, form broadside type transformer jointly by traditional transformer core lamination and additional broadening iron core frame.Described broadening iron core frame can be by the bar shaped lamination 1 of traditional transformer laminated coil axis direction, and the bar shaped laminated core 2 in the coil outside is formed splicing form framework.Described broadening iron core frame can also be made up of the strip iron core.But segmentation splicing of described broadening iron core frame or general frame structure.

The utility model reduces the power transformer noise and to external disturbance, improves audio frequency transformer signal transmission quality etc. for reducing the outside leakage field of transformer, all has than obvious effects.

The drawing explanation:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is an embodiment of the present utility model

Structure of the present utility model is seen accompanying drawing: a is a border width among Fig. 1, b is that tongue is wide, wherein a:b is that the utility model is on traditional transformer core lamination edge at Fig. 2 between the 0.8-2.4, an embodiment of additional broadening iron core frame is set, it is near traditional transformer core lamination edge, be equipped with additional broadening iron core frame, described broadening iron core frame can be by the bar shaped laminated core 1 of former laminated coil axis direction, the bar shaped laminated core 2 in the coil outside is formed splicing form framework, and 3 is traditional transformer standard core lamination stack.Described broadening iron core can also be made up of the strip iron core, and above-mentioned broadening iron core can be the segmentation splicing, or whole frame structure.

The utility model is applicable to as power transformer and audio frequency transformer in electrical equipment, instrument and the electroacoustic equipment of higher gear time.

Claims

1. novel core structure transformer is characterized in that: the wide ratio of the border width of E type or mountain font transformer core and tongue constitutes broadside type transformer between 0.8-2.4.

2. a kind of novel core structure transformer as claimed in claim 1, it is characterized in that: on traditional transformer core lamination edge, be equipped with additional broadening iron core frame, form broadside type transformer jointly by traditional transformer core lamination and additional broadening iron core frame.

3. novel core structure transformer as claimed in claim 2 is characterized in that: broadening iron core frame; Can be by the bar shaped lamination 1 of traditional transformer lamination coil axis direction, the bar shaped laminated core 2 in the coil outside is formed splicing form framework.

4. novel core structure transformer as claimed in claim 2 is characterized in that: broadening iron core frame can also be made up of the strip iron core.

5. as claim 2 or 4 described novel core structure transformers, it is characterized in that: but segmentation splicing of broadening iron core frame or general frame structure.