CN2938351Y

CN2938351Y - Improved transformer

Info

Publication number: CN2938351Y
Application number: CN 200620044391
Authority: CN
Inventors: 杨晨
Original assignee: SHANGHAI CHARLES ELECTRONICS CO Ltd
Current assignee: SHANGHAI CHARLES ELECTRONICS CO Ltd
Priority date: 2006-07-31
Filing date: 2006-07-31
Publication date: 2007-08-22
Anticipated expiration: 2016-07-31

Abstract

The utility model discloses an improved transformer which comprises two iron cores. A winding rack is provided between two cores. A plurality of the first pins and the second pins are provided at the subface of the transformer; the position of the first pin and the second pin are not completely symmetrical. The protrusion parts are provided at the flank of a winding rack which is as high as the upper end of the pins. A plurality of the first prongs and the second prongs are provided on the relative position corresponding with the first pin and the second pin at the subface of the winding rack. A primary coil and a secondary coil are convolved on the winding rack, which are respectively connected with an outer circuit through the first pin and the second pin. The utility model is easily identified and changes the substructure of the prior transformer at the same time; when the transformer is used on the circuit board, the conveniency and reliability is greatly improved.

Description

A kind of improved transformer

Technical field

The utility model relates to a kind of transformer, especially a kind of improved transformer.

Background technology

Transformer commonly used comprises iron core, drum stand and coil, and coil comprises elementary winding and two groups of coils of secondary winding, because the pin count of two windings is identical, and, transformer is a symmetrical structure normally, and the situation of wrong pin when causing using easily causes the damage of transformer.

And, because the integrated level of circuit is more and more higher, require to have good being connected between transformer and the circuit board, but traditional transformer can't be accomplished this point.

Summary of the invention

The utility model proposes a kind of transformer of easy identification pin at the problems referred to above, has also changed the partial structurtes of existing transformer simultaneously, has improved convenience and reliability that transformer uses on circuit board greatly.

In order to realize the foregoing invention purpose, the technical solution of the utility model is that a kind of improved transformer is characterized in that, comprising: two iron cores; Drum stand, be arranged between described two iron cores, its bottom surface is provided with a plurality of first pins and second pin, the position of described first pin and second pin is symmetry not exclusively, side at the drum stand 1 of each pin upper end isometry position is provided with jut, also is provided with a plurality of first pins and second pin at the bottom surface of drum stand and first pin and the corresponding position of second pin; Primary coil and secondary coil, winding are on this drum stand, and described primary coil is connected with external circuit by first, second pin respectively with secondary coil.

Reasonablely be that described primary coil and secondary coil are that the upper end by jut is connected with first, second pin downwards.

Reasonable is that described second pin is located at opposite side relative with first pin on the drum stand.

Reasonablely be, described drum stand bottom surface be provided with groove in twos between the pin.

Reasonable is that the spacing between the center pillar of described two iron cores is 0.9-1.1mm.

Reasonablely be, it is 0.15～0.17mm that the line of described primary coil directly requires, and it is 0.22～0.24mm that the line of described secondary coil directly requires.

Reasonablely be, the number of turns of described primary coil is 180 ± 10, and the number of turns of described secondary coil is 18 ± 2.

Description of drawings

Below, with reference to accompanying drawing, for those skilled in the art that, to the detailed description of the present utility model, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.

Fig. 1 is the decomposing schematic representation of transformer of the present utility model;

Fig. 2 is the upward view of the transformer after Fig. 1 makes up;

Fig. 3 is the end view of the transformer after Fig. 1 makes up.

Embodiment

See also shown in the accompanying drawing 1, transformer of the present utility model comprises two iron cores 5,6, being relative E font combines, drum stand 1 is arranged between the iron core 5,6, on drum stand 1, be arranged with primary coil 2 respectively and secondary coil 3, two coils are connected with external circuit by two pins respectively.

See also shown in the accompanying drawing 2, have 10 pin positions on the drum stand in the diagram, promptly 21-25 and 36-40 in existing transformer device structure, all are provided with pin on ten pin positions, are very easy to obscure the position relation of primary and secondary end when assembling.Improvements of the present utility model are, the pin of primary and secondary end is reduced to each two, and the asymmetric both sides, bottom surface that are distributed in drum stand 1, as shown in the figure, the pin of primary side is 22,24, be connected with the

extension

27,28 of primary coil 2 respectively, the

39,40 of secondary end is connected with the

extension

31,32 of secondary coil 3 respectively, since drum stand 1 form groove in twos between the pin, the

extension

27,28 of primary coil 2 and the

extension

31,32 of secondary coil 3 are embedded in this groove.

In addition, for transformer of the present utility model is installed on the circuit board, the side of the drum stand 1 of isometry position is provided with jut on each pin, totally ten (Fig. 3 only illustrated one of them jut 51), the design of this jut is to make things convenient for this transformer to plug on circuit board.

In addition, the

extension

27,28 of above-mentioned primary coil 2 and the extension the 31, the 32nd of secondary coil 3 are connected with pin downwards by the upper end of jut.Be uneven when having avoided transformer like this on being plugged in circuit board, and contingent short circuit phenomenon.

In said structure, it is 0.9～1.1mm that the spacing between the center pillar of iron core 5,6 requires, and it is 0.15～0.17mm that the line of primary coil 2 directly requires, and it is 0.22～0.24mm that the line of secondary coil 3 directly requires.And the former number of turns is 180 ± 10, and the latter's the number of turns is 18 ± 2.

More than all embodiment only for the explanation the utility model usefulness, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, so all technical schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.

Claims

1, a kind of improved transformer is characterized in that, comprising:

Two iron cores;

Drum stand, be arranged between described two iron cores, its bottom surface is provided with a plurality of first pins and second pin, the position of described first pin and second pin is symmetry not exclusively, side at the drum stand 1 of each pin upper end isometry position is provided with jut, also is provided with a plurality of first pins and second pin at the bottom surface of drum stand and first pin and the corresponding position of second pin;

Primary coil and secondary coil, winding are on this drum stand, and described primary coil is connected with external circuit by first, second pin respectively with secondary coil.

2, improved transformer according to claim 1 is characterized in that,

Described primary coil and secondary coil are that the upper end by jut is connected with first, second pin downwards.

3, improved transformer according to claim 2 is characterized in that, described second pin is located at opposite side relative with first pin on the drum stand.

4, according to claim 2 or 3 described improved transformers, it is characterized in that,

Described drum stand bottom surface be provided with groove in twos between the pin.

5, improved transformer according to claim 4 is characterized in that,

Spacing between the center pillar of described two iron cores is 0.9-1.1mm.

6, improved transformer according to claim 5 is characterized in that,

It is 0.15～0.17mm that the line of described primary coil directly requires, and it is 0.22～0.24mm that the line of described secondary coil directly requires.

7, improved transformer according to claim 6 is characterized in that,

The number of turns of described primary coil is 180 ± 10, and the number of turns of described secondary coil is 18 ± 2.