JPH058913U - Trance - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a transformer that is easy to assemble and has a high degree of magnetic coupling. [Structure] The transformer according to the present invention is a first winding which is a primary winding.
An insulating layer 6 is provided around the outer periphery of the conductive portion 5 and a second conductive portion 7 serving as a secondary winding is provided around the outer periphery of the insulating layer 6, and the coaxial winding 3 is wound around the core 1. It has a structure. The first conductive portion 5 serving as the primary winding and the second conductive portion 7 serving as the secondary winding become one wire, and the coaxial winding 3 can be wound around the core 1 in one working process. it can.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a small transformer suitable for high frequencies.

[0002]

[Prior art]

  In the conventional transformer, the primary winding 3 is wound around the bobbin 2 as shown in FIG. The winding 4 is wound and the core 1 is attached to the bobbin 2. Also, this tran As shown in FIG. 5, the primary winding 3 used for the coil is placed around the outside of the linear first conductive portion 5. A triple insulating layer 6 made of insulating tape is applied, and the triple insulating layer 6 is the first conductive portion. 5, a first layer 6a that adheres closely to 5, a second layer 6b that is coated on the first layer 6a, and a second layer 6b And a third layer 6c coated thereon. Of the first layer 6a, the second layer 6b and the third layer 6c All of them are polyethylene, polyethylene terephthalate, polyimide, poly Ester, polyether, polyacetal, polyvinyl formal, polyureta Selected from the group consisting of amines, epoxies and polyphenylene sulfides. Made of insulating material.

[0003]

[Problems to be solved by the device]

  Since the primary winding and the secondary winding are individually wound on the core, the work is troublesome and electrically However, the degree of magnetic coupling was not good.

[0004]   The purpose of the present invention is to easily attach the primary winding and the secondary winding to the core and to assemble them easily. The purpose is to provide the transformer.

[0005]

[Means for Solving the Problems]

  The transformer according to the present invention has an insulating layer around the outer periphery of the first conductive portion, which is the primary winding. And a second conductive portion serving as a secondary winding provided around the outside of the insulating layer. Wrap the towie around the core. The first or second conductive portion may be a stranded wire. .

[0006]

[Action]

  The first conductive portion, which is a primary winding, and the secondary winding, which are held in an insulated state from each other, The two conductive parts become one coaxial winding, and the coaxial winding is wound around the core in one work process. be able to.

[0007]

【Example】

  Hereinafter, the transformer according to the present invention will be described with reference to FIGS. 1 to 3 The same parts as those shown in FIGS. 4 and 5 are designated by the same reference numerals, and the description thereof will be omitted.

[0008]   The transformer according to the present invention, as shown in FIG. Of the conductive portion 5, the triple insulating layer 6 wound around the outside of the conductive portion 5, and the triple insulating layer 6 A coaxial winding (magnifying coil) composed of a second conductive portion 7 which is a secondary winding wound around the outside. Net wire) 9 is wound, and core 1 is attached to bobbin 2. Second An enamel coating 8 is applied to the outside of the conductive portion 7. The first conductive portion 5 and the second conductive portion When the number of turns of the conductive part 7 is different, for example, the conductive part 5 is wound more than the second conductive part 7. When the number is large, the second conductive portion 7 may be removed and the first conductive portion 5 may be added. Guide The electric part 5 or 7 can also be formed by a stranded wire. In this embodiment, the insulating layer 6 is used. Conductive parts 5 and 7 held in an insulated state from each other form a single wire, The conductive part 5 and the conductive part 7 as the secondary winding can be efficiently used for the bobbin 2 in one working process. Can be wrapped around. In addition, since the conductive parts 5 and 7 are the coaxial windings 3, The degree of mechanical coupling can be improved.

[0009]   FIG. 3 shows another embodiment in which the conductive parts 5 and 7 have a flat cross section. Almost the same as Fig. 1 Since it is the same, the description is omitted.

[0010]   Although the insulating layer 6 having three layers is shown in the above embodiment, the insulating layer 6 is not limited to three layers. Not of.

[0011]

[Effect of device]

  As described above, in the present invention, the first conductive portion 5 serving as the primary winding and the secondary winding serve as the secondary winding. Since the second conductive portion 7 and the second conductive portion 7 are coaxially arranged, they can be easily wound around the core, Moreover, it is possible to obtain a transformer having a good magnetic coupling degree.

[Brief description of drawings]

FIG. 1 is a sectional view of a transformer according to the present invention.

FIG. 2 is a sectional view of a coaxial winding used in the transformer according to the present invention.

FIG. 3 is a cross-sectional view showing another embodiment of the coaxial winding used in the transformer of the present invention.

FIG. 4 is a sectional view of a conventional transformer.

FIG. 5 is a perspective view of a winding used in a conventional transformer.

[Explanation of symbols]

1 ... Core, 2 ... Bobbin, 3 ... Coaxial winding, 5 ... 1
First conductive part to be the next winding, 6 ... Insulating layer, 7 ... Second conductive part to be the secondary winding

Claims (2)

[Scope of utility model registration request] 1. A magnet wire comprising an insulating layer provided around a first conductive portion serving as a primary winding, and a second conductive portion serving as a secondary winding provided around the outside of the insulating layer. A transformer characterized by being wound around a core. 2. The transformer according to claim 1, wherein the first or second conductive portion is composed of a stranded wire.