CN201478064U

CN201478064U - Winding structure of transformer

Info

Publication number: CN201478064U
Application number: CN2009201632268U
Authority: CN
Inventors: 刘清伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-30
Filing date: 2009-06-30
Publication date: 2010-05-19
Anticipated expiration: 2019-06-30

Abstract

The utility model discloses a winding structure of a transformer and relates to a winding structure of a transformer used for a mobile phone charger. The winding structure comprises a transformer skeleton, and the transformer skeleton is sequentially wound with a layer of copper foil, a first enameled wire, a second enameled wire, an insulated wire and a third enameled wire from inside to outside, wherein a first adhesive tape is pasted on the outer surface of the copper foil, and a lead wire welded on the copper foil is connected with a first pin on the transformer skeleton; the beginning end of the first enameled wire is connected with a second pin, the terminal end is connected with a third pin, and a circle of second adhesive tape is wrapped outside the first enameled wire; the beginning end of the second enameled wire is connected with a fourth pin, the terminal end is connected with the third pin, and a circle of third adhesive tape is wrapped outside the second enameled wire; the beginning end of the insulated wire is connected with an S pin, the terminal end is connected with an F pin, and a circle of fourth adhesive tape is wrapped outside the insulated wire; and the beginning end of the third enameled wire is connected with the first pin, the terminal end is connected with a fifth pin, and two circles of adhesive tapes are wrapped outside the third enameled wire. The transformer structure has the characteristics of strong anti-interference performance and radiation resistance.

Description

A kind of transformer coiling structure

Technical field

The utility model relates to a kind of transformer coiling structure, relates in particular to the winding structure of a kind of charger for mobile phone with transformer.

Background technology

At present, general RCC (discrete Switching Power Supply) power source design that adopts designs low-cost charger for mobile phone, but there is the shortcoming of anti-interference and radiation resistance difference in employed transformer in this kind charger for mobile phone, generally need on the surface-mounted integrated circuit of charger for mobile phone, increase as removals such as filter circuits and disturb, increase the complexity of design, also increased cost of manufacture.

The utility model content

The purpose of this utility model is to solve the defective that transformer exists in the existing charger for mobile phone, provides a kind of radioresistance and interference strong transformer.

The technical scheme that the utility model adopted is: a kind of transformer coiling structure, comprise transformer framework, and be wound with successively from inside to outside on the transformer framework,

One deck outer surface is pasted with the Copper Foil of first adhesive tape, and the outer end of described Copper Foil is between two ends of described first adhesive tape, and the inner and the outer end of described Copper Foil overlap each other; The lead-in wire that welds on the described Copper Foil is connected to first pin on the transformer framework;

First enamelled wire, the initiating terminal of described first enamelled wire is connected to second pin, and clearing end is connected to the 3rd pin; Described first enamelled wire is surrounded by a circle second adhesive tape outward;

Second enamelled wire, the initiating terminal of described second enamelled wire is connected to the 4th pin, and clearing end is connected to described the 3rd pin; Described second enamelled wire is surrounded by a circle the 3rd adhesive tape outward;

Insulated wire, the initiating terminal of described insulated wire is connected to the S pin, and clearing end is connected to the F pin; Described insulated wire is surrounded by a circle the 4th adhesive tape outward; And,

The 3rd enamelled wire, the initiating terminal of described the 3rd enamelled wire is connected to first pin, and clearing end is connected to the 5th pin; Described the 3rd enamelled wire is surrounded by two circles the 5th adhesive tape outward.

Preferably, described first enamelled wire is wound with four layers, evenly close 136 circles that are wound with of three first layers, the 4th layer of close 27 circle that is wound with placed in the middle; Described second enamelled wire is wound with one deck, close 17 circles that are wound with placed in the middle; And described insulated wire is wound with one deck, close 12 circles that are wound with placed in the middle; Described the 3rd enamelled wire is wound with one deck, close 15 circles that are wound with placed in the middle.

Preferably, described first pin, second pin, the 3rd pin, the 4th pin, and the 5th pin is respectively 1 pin, 5 pin, 3 pin, 4 pin and 2 pin of transformer framework.

Preferably, described Copper Foil is of a size of long 25.5mm, wide 6mm, thick 0.025mmm; The diameter of described first enamelled wire and the 3rd enamelled wire is 0.13mm; The diameter of described second enamelled wire is 0.1mm; The diameter of described insulated wire is 0.25mm, and the external diameter of insulating barrier is 0.47mm.

Preferably, described first adhesive tape, second adhesive tape, the 3rd adhesive tape, the 4th adhesive tape, and the wide of the 5th adhesive tape is 7.2mm.

The beneficial effects of the utility model are: transformer coiling structure described in the utility model has stronger anti-interference and radiation resistance, use is in the low-cost charger for mobile phone that adopts the design of RCC power source design, can remove from filter circuit is set, save cost of manufacture, simplified production process.

Description of drawings

Fig. 1 is the transverse sectional view of transformer coiling structure described in the utility model.

Embodiment

Now in conjunction with the accompanying drawings embodiment of the present utility model is described in detail.

A kind of transformer coiling structure as shown in Figure 1, comprises transformer framework a, is wound with successively from inside to outside on the transformer framework a:

One deck outer surface is pasted with the Copper Foil 10 of first adhesive tape 20, and the outer end 12 of described Copper Foil 10 is between two

ends

21 and 22 of described first adhesive tape 10, and the inner 11 and the outer end 12 of described Copper Foil 10 have the part that overlaps each other, as Copper Foil 10 coilings 1.1 circles; The lead-in wire of welding is connected to first pin on the transformer framework a on the described Copper Foil 10, as the pin 1 of transformer framework a;

First enamelled wire 30, the initiating terminal of described first enamelled wire 30 is connected to second pin, and as 5 pin of transformer framework a, clearing end is connected to the 3rd pin, as 3 pin of transformer framework; Described first enamelled wire, 30 an outer circle second adhesive tapes 40 that are surrounded by; Wherein, first enamelled wire can be wound with four layers, evenly close 136 circles that are wound with of three first layers, the 4th layer of close 27 circle that is wound with placed in the middle;

Second enamelled wire 50, the initiating terminal of described second enamelled wire 50 is connected to the 4th pin, and as 4 pin of transformer framework a, clearing end is connected to described the 3rd pin, as 3 pin of transformer framework a; Described second enamelled wire, 50 an outer circle the 3rd adhesive tapes 60 that are surrounded by; Wherein, second enamelled wire can be wound with one deck, close 17 circles that are wound with placed in the middle;

Insulated wire 70, the initiating terminal of described insulated wire 70 is connected to the S pin, and clearing end is connected to the F pin, and promptly insulated wire 70 is as the secondary coil of transformer; Described insulated wire 70 an outer circle the 4th adhesive tapes 80 that are surrounded by; Wherein, described insulated wire 70 can be wound with one deck, close 12 circles that are wound with placed in the middle;

The 3rd enamelled wire 90, the initiating terminal of described the 3rd enamelled wire 90 is connected to first pin, and as 1 pin of transformer framework, clearing end is connected to the 5th pin, as 2 pin of transformer framework; Described the 3rd enamelled wire 90 outer two circles the 5th adhesive tapes 100 that are surrounded by; Wherein, described the 3rd enamelled wire 90 can be wound with one deck, close 15 circles that are wound with placed in the middle.

Above-mentioned insulated wire 70, and the number of turns of first, second and the 3rd enamelled wire coiling can be adjusted according to the specification of transformer.

Above-mentioned Copper Foil 10, insulated wire 70, first, second and the 3rd enamelled wire, and the size of first to the 5th adhesive tape can set according to the specification of transformer framework a can be long 25.5mm, wide 6mm, thick 0.025mmm as the size of Copper Foil 10; The diameter of first enamelled wire 30 and the 3rd enamelled wire 90 can be 0.13mm; The diameter of second enamelled wire 50 can be 0.1mm; The diameter of described insulated wire 70 can be 0.25mm, and the external diameter of insulating barrier can be 0.47mm.

And described first adhesive tape 20, second adhesive tape 40, the 3rd adhesive tape 60, the 4th adhesive tape 80, and the wide of the 5th adhesive tape 100 can be 7.2mm.

In addition, those skilled in the art should be understood that, Fig. 1 only is the clear winding structure that shows transformer, in the reality, paste each other for the 3rd layer of the both sides of second adhesive tape 40 and first enamelled wire, and between second adhesive tape 40 and the 3rd adhesive tape 60, between the 3rd adhesive tape 60 and the 4th adhesive tape 80, and all be pasted together in both sides between the 4th adhesive tape 80 and the 5th adhesive tape 100.

Being the utility model preferred embodiment only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to technology category of the present utility model.

Claims

1. transformer coiling structure is characterized in that: comprises transformer framework, is wound with successively from inside to outside on the transformer framework,

2. a kind of transformer coiling structure according to claim 1 is characterized in that: described first enamelled wire is wound with four layers, evenly close 136 circles that are wound with of three first layers, the 4th layer of close 27 circle that is wound with placed in the middle; Described second enamelled wire is wound with one deck, close 17 circles that are wound with placed in the middle; And described insulated wire is wound with one deck, close 12 circles that are wound with placed in the middle; Described the 3rd enamelled wire is wound with one deck, close 15 circles that are wound with placed in the middle.

3. a kind of transformer coiling structure according to claim 2 is characterized in that: described first pin, second pin, the 3rd pin, the 4th pin, and the 5th pin is respectively 1 pin, 5 pin, 3 pin, 4 pin and 2 pin of transformer framework.

4. according to claim 1,2 or 3 described a kind of transformer coiling structures, it is characterized in that: described Copper Foil is of a size of long 25.5mm, wide 6mm, thick 0.025mmm; The diameter of described first enamelled wire and the 3rd enamelled wire is 0.13mm; The diameter of described second enamelled wire is 0.1mm; The diameter of described insulated wire is 0.25mm, and the external diameter of insulating barrier is 0.47mm.

5. a kind of transformer coiling structure according to claim 4 is characterized in that: described first adhesive tape, second adhesive tape, the 3rd adhesive tape, the 4th adhesive tape, and the wide of the 5th adhesive tape is 7.2mm.