CN201160028Y - Transformer - Google Patents

Abstract

The utility model discloses a transformer, which comprises a wire winding base and a plurality of pins, wherein the pins are arranged at the bottom end of the wire winding base, each pin is provided with a first limit part and a second limit part, the first limit part is connected with the second limit part, and the first limit part and the second limit part present a shape of hug in the direction of projection. The transformer has the advantages that the wire winding is convenient, and the transformer meets the requirement of microminiaturization and conforms to the safety specifications of the electrical elements.

Description

Transformer

Technical field

The utility model relates to a kind of transformer, especially relates to a kind of transformer that can conveniently wind the line and meet the microminiaturization demand and reach the electric component safety requirements.

Background technology

Along with the fast development of science and technology, the application of electronic correlation product more and more widely, and the stability of power supply supply often depends on the process of the driving voltage in the transformer conversion electron circuit.Because transformer relates to the conversion process of electric power, it has potential danger, therefore wants to meet safety standard, can use.

See also Fig. 1, Fig. 1 is the schematic diagram of existing transformer.Existing transformer 1 be with coiling 14 in being wrapped on the pin 12, the mode with welding 14 is fixed on coiling on the pin 12 again.Yet this type of processing method regular meeting causes many problems, for example when coiling 14 line footpath is thick, must spends and manyly manually twine, and the coiling 14 after twining still slides easily, and be unfavorable for the carrying out of follow-up welding.Moreover, because coiling 14 there is no fixing winding shape when being wrapped in pin 12, thereby can cause in shape irregular, make that the safe distance between two pins 12 is not easy control, the user just causes danger in use easily.Moreover when being mounted to transformer 1 on the circuit board, pin 12 also contacts with other electronic component easily and causes short circuit, so have the many risks that can not expect on reality is used.

In view of this, how to provide a kind of and can effectively dwindle the pin volume, keep the enough safe distances and the transformer of processing easily, real is one of important topic.

The utility model content

The purpose of this utility model is to provide a kind of transformer, and it can conveniently wind the line, and meets the microminiaturization demand, and reaches the electric elements safety requirements.

The purpose of this utility model is to realize like this, a kind of transformer is promptly proposed, comprise a bobbin winder base and a plurality of pin, pin is arranged at the bottom of bobbin winder base, and each pin has one first limiting section and one second limiting section, and first limiting section links to each other with second limiting section and first limiting section, second limiting section affiliated with it is the shape of filling the span of a man's arms on projecting direction.

As above-mentioned transformer, those pins have more a junction, and this connecting portion links to each other first limiting section with second limiting section, and per second limiting section is arranged at the end of the pin under it.First limiting section and second limiting section respectively have a protuberance, and it pulls out a plurality of the coiling in pin separately, and every coiling is arranged between first limiting section and its second limiting section.First limiting section respectively has an opening, and second limiting section respectively has an opening.In addition, the opening of per first limiting section and per second limiting section is different toward each other, and every coiling is contained in the opening of first limiting section and second limiting section simultaneously, and a pin and a circuit board link, the coiling group is a level winding, and is an enamelled wire or a multilayer insulation line.In addition, first limiting section, second limiting section affiliated with it is of similar shape, and first limiting section and second limiting section are a semicircle, circle, spirality or other shape, and bobbin winder base has a through hole and the iron core group assembling that has with transformer, make iron core group partly be arranged in through hole, iron core group is EE sections core or EI sections core, and transformer is a horizontal type transformer.

Advantage of the present utility model is because coiling is arranged between first limiting section and second limiting section, via the formed pin in welding back, all to have similar size shape each other.Therefore, when pin is soldered to circuit board and connects, be not easy to produce variation, the consistency of transformer is good, the easier requirement that meets safety requirements on market.Thus, be applied on the horizontal type transformer, help now desired microminiaturization design on the market, product has more competitiveness.

For above-mentioned and other purposes of the present utility model, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended accompanying drawing, be described in detail below:

Description of drawings

Fig. 1 is the schematic diagram of existing transformer;

Fig. 2 A is a transformer schematic diagram of the present utility model;

Fig. 2 B is the bobbin winder base generalized section of Fig. 2 A;

The pin schematic perspective view of Fig. 3 A Fig. 2 A;

Fig. 3 B is the pin vertical view of Fig. 3 A.

The main element symbol description

1,2: transformer 12,22: pin

14: coiling 2: transformer

21: bobbin winder base 211: through hole

222: the second limiting sections of 221: the first limiting sections

223: connecting portion 224a, 224b: protuberance

225a, 225b: opening 23: iron core group

24: coiling group 241: coiling

Embodiment

Please consult Fig. 2 A and Fig. 2 B simultaneously, Fig. 2 A is a transformer schematic diagram of the present utility model, and Fig. 2 B is the bobbin winder base cross-sectional schematic of Fig. 2 A.Transformer 2 of the present utility model comprises a bobbin winder base 21, a coiling group 24, an iron core group 23 and a plurality of pins 22.Bobbin winder base 21 has a through hole 211 can allow iron core group 23, for example is EE sections core or EI sections core, can partly be located in the through hole 211.And coiling group 24 is formed by a plurality of coilings, for example is enamelled wire or multilayer insulation line.22 bottoms that are arranged at bobbin winder base of pin.

Please consult Fig. 3 A and Fig. 3 B simultaneously, the pin schematic perspective view of Fig. 3 A Fig. 2 A, Fig. 3 B are the pin vertical view of Fig. 3 A.Pin 22 has one first limiting section 221, one second limiting section 222 and a junction 223, first limiting section 221 and second limiting section 222 respectively have an opening 225a, 225b, and the opening 225b of the opening 225a of first limiting section 221 and second limiting section 222 is different toward each other, see it with projecting direction, first limiting section 221 and second limiting section 222 shape of filling the span of a man's arms each other is so that the fixing usefulness of the coiling of follow-up manufacture craft.In addition, 223 of connecting portions are between first limiting section 221 and second limiting section 222, and as linking first and second limiting section 221,222 usefulness, and second limiting section 222 is arranged at the end of the pin 22 under it.

Be unfavorable for fixing in order to improve the coiling that existing transformer pulled out in the course of processing, make pin excessive, cause the not good problem of Product Safety and consistency, transformer 2 of the present utility model, because the edge of first limiting section 221 and second limiting section 222 all has opening 225a, 225b, and on projecting direction for filling the span of a man's arms the design of shape, so coiling group 24, the coiling 241 that for example inferior winding is pulled out, can be in regular turn by the 225a that opens of first limiting section 221, connecting portion 223 enters in the pin 22 with entering with the opening 225b of second limiting section 222, shown in Fig. 2 A.Because coiling 241 is by 221,222 restrictions of first and second limiting section, and can not produce irregular curvedly, what coiling 241 can be neat is fixed in the pin 22.Afterwards,, the space between coiling 241 and first limiting section 221, second limiting section 222 and the linking part 223 is filled up, can be formed the pin 22 of size shape all similar again with the scolding tin fusing mode.Thus, pin 22 shapes are able to unanimity, when transformer 2 when linking with a circuit board, just do not have and contact with the nearby electron element and produce the doubt of short circuit, can effectively improve reliability of products.

In addition, if any considering of microminiaturization, can coiling 241 finish with scolding tin fixing after, clip second clamping part 222 of pin 22 ends, or clip second clamping part 222 of pin 22 ends and the length of part connecting portion 223, link with connecting portion 223 and circuit board.So, more help the design of product microminiaturization.

Moreover, if any the convenience of considering installing, can be preferably at opening 225a, the 225b of first limiting section 221 and second limiting section 222, design a protuberance 224a, 224b respectively, only need when mounted coiling 241 is rested on protuberance 224a, 224b, introduce in first limiting section 221 and second limiting section 222 along the edge of protuberance 224a, 224b, can finish assembling, shown in Fig. 2 A and Fig. 3 B.Thus, not only winding the line 241 can be fixed on the pin 22 easily, is beneficial to follow-up operation, but also can avoid 241 scratches that cause winding the line of sharp-pointed place, edge because of first limiting section 221 and second limiting section 222.

In addition, first limiting section 221 and second limiting section 222 are except can identical each other shape, and the shape of first limiting section 221 and second limiting section 222, can be half circle, circle, spirality or other shape, right true form variation then determines according to product and utilization situation, no matter how to change in shape, can reach the effect of location coiling 241.

In sum, because coiling is arranged between first limiting section and second limiting section,, all has similar size shape each other via the formed pin in welding back.Therefore, when pin is soldered to circuit board and connects, be not easy to produce variation, the consistency of transformer is good, the easier requirement that meets safety on market.Thus, be applied on the horizontal type transformer, help now desired microminiaturization design on the market, product has more competitiveness.

Claims (16)

1, a kind of transformer is characterized in that, comprising: bobbin winder base; And at least one pin, be arranged at the bottom of this bobbin winder base, and this pin has first limiting section and second limiting section; Wherein, this first limiting section links to each other with this second limiting section, and this second limiting section is the shape of filling the span of a man's arms on projecting direction under this first limiting section and its.

2, transformer as claimed in claim 1 is characterized in that, this pin also has connecting portion, and this connecting portion links to each other this first limiting section with this second limiting section.

3, transformer as claimed in claim 1 is characterized in that, this second limiting section is arranged at the end of this pin under it.

4, transformer as claimed in claim 1 is characterized in that, this first limiting section and this second limiting section respectively have a protuberance.

5, transformer as claimed in claim 1 is characterized in that, this transformer also has the coiling group, and its end is wound in this pin.

6, transformer as claimed in claim 5 is characterized in that, this coiling is arranged between this first limiting section and this second limiting section.

7, transformer as claimed in claim 6 is characterized in that, this first limiting section has an opening, and this second limiting section has an opening, and the opening of this first limiting section and this second limiting section is towards being different each other.

8, transformer as claimed in claim 7 is characterized in that, the end of this coiling is contained in the opening of this first limiting section and this second limiting section simultaneously.

9, transformer as claimed in claim 5 is characterized in that, this pin and circuit board link.

10, transformer as claimed in claim 5 is characterized in that, this coiling group is a winding, and should the coiling group be enamelled wire or multilayer insulation line.

11, transformer as claimed in claim 1 is characterized in that, this first limiting section with its this second limiting section of corresponding genus be of similar shape.

12, transformer as claimed in claim 1 is characterized in that, this first limiting section and this second limiting section are semicircle, circle, spirality or other shape.

13, transformer as claimed in claim 1 is characterized in that, this bobbin winder base has through hole.

14, transformer as claimed in claim 13 is characterized in that, this transformer also has iron core group, and this iron core group partly is located in this through hole, and this iron core group is EE sections core or EI sections core.

15, transformer as claimed in claim 1 is characterized in that, this transformer is the horizontal type transformer.

16, a kind of bobbin winder base is characterized in that, the bottom of this bobbin winder base is provided with at least one pin, and this pin has at least one limiting section.

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