JPH04307406A - Magnetic head - Google Patents

Abstract

PURPOSE:To reduce the actual number of windings and to save space by providing another conductor adjacent to one conductor within the latter conductor via an insulation coating in a longitudinal direction. CONSTITUTION:Conductors 1 and 2 of same kind or different kinds are completely insulated with double tubular insulation coatings 3 and 4 and will not be short-circuited. By connecting these conductors 1 and 2 in series, twice the number of windings can be obtained. Accordingly, only half the number of windings is required to obtain the normal number of windings, and the space for windings can be reduced. By using different kinds of materials for the conductors 1 and 2, a line diameter can be changed because the resistance values of these materials are different from each other.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding for transmitting energy of a magnetic head.

0002

2. Description of the Related Art FIG. 7 is a sectional view showing a conventional winding wire. In the figure, 11 is a conductor, which functions to mutually convert electrical energy to mechanical energy using magnetic energy as a medium. Reference numeral 12 denotes an insulating film for preventing short circuits between the conductors 11 or other conductors.

FIG. 8 shows a state in which a conventional winding is attached to a magnetic head, and one closed magnetic path is formed by magnetic cores 13, 14, and 15. The cross section of the winding is as shown in the enlarged view of section A. A magnetic head is a converter between a magnetic signal and an electrical signal; when a current flows through a winding, a magnetic flux is induced, and when the magnetic flux changes over time, a current flows through the winding. The winding plays an important role in this energy conversion,
In order to increase the amount of conversion, it is necessary to increase the number of turns of the winding.

0004

[Problems to be Solved by the Invention] Since magnetic heads using conventional windings are constructed as described above, the space for the windings becomes large due to the relationship between the wire diameter and the number of turns, which results in the size of peripheral equipment. There were problems such as restrictions on performance.

[0005] This invention was made to solve the above-mentioned problems, and by making one conductor wire adjacent to another conductor wire through an insulating film in the longitudinal direction, If these are connected in series, the length will be more than double, and the purpose is to reduce the actual number of turns and save space.

[0006]

[Means for Solving the Problems] In order to achieve the above object, a magnetic head according to the present invention is wound in a coil around a magnetic core having a magnetic gap, and uses magnetic energy as a medium to convert electric energy to mechanical energy. In a magnetic head with a wire winding intended for mutual exchange,
2 mutually insulated by an insulating film along the longitudinal direction
It is equipped with a winding in which there are conductor parts of the same type or different types made of a structure of layers or more.

[0007]

[Operation] When the winding of the magnetic head according to the present invention is made of N-layer conductors of the same type that are mutually insulated along the longitudinal direction, the cross-sectional area of each layer is equal, so if the winding is the same as the conventional one, it will be substantially The number of turns is N times larger than that of the conventional one, and in order to obtain substantially the same number of turns as the conventional one, it is necessary to wind only 1/N of the conventional one.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of the electric wire. In the figure, 1 and 2 are conductors of the same type or different types, and are completely insulated by double tubular insulating coatings 3 and 4 along the longitudinal direction, and will not be short-circuited. If these conductors 1 and 2 are connected in series, the number of turns can be doubled. Therefore, in order to obtain the normal number of turns, half the number of turns is required, so the space for winding the wire can be reduced as shown in FIG.

FIG. 3 shows a comparison between a conventional conducting wire and a winding wire according to an embodiment of the present invention. The cross-sectional areas of conductor 1 and conductor 2 are equal, and the conductor resistance of radius r is also equal to radius (R-r ) is also comparable to that of the radius R of the conventional winding conductor 11. If the conductors 1 and 2 are made of different materials, their resistance values will be different, and the wire diameters can also be changed.

FIG. 4 shows a case where the conductors 1 and 2 are divided into two circles, FIG. 5 shows a case where the conductors are divided into three by a radial insulation film, and FIG. 6 shows a case where they are divided into four by a radial insulation film. .

FIG. 2 shows the windings 13, 14,
1 shows a magnetic head according to the present invention wound in a coil around a magnetic core having a magnetic gap of 15 mm. As can be seen from a comparison with FIG. 8, the space for the winding portion is significantly reduced.

0012

As described above, according to the present invention, it is possible to magnetically conduct a winding in which there are conductor parts of the same type or different types, which are composed of two or more layers of structure mutually insulated by an insulating film along the longitudinal direction. Since the core is wound in a coil, twice the number of turns can be obtained even with the same number of turns as before, and conversely, in order to have the same number of turns as before, the number of turns can be less than half, so the device It has the effect of making it more compact and saving space.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an electric wire according to an embodiment of the present invention.

FIG. 2 is a perspective view of a magnetic head and an enlarged cross-sectional perspective view of a winding according to an embodiment of the present invention.

FIG. 3 is a sectional view showing a comparison between a conventional electric wire and an electric wire according to an embodiment of the present invention.

FIG. 4 is a sectional view of a two-part electric wire according to an embodiment of the present invention.

FIG. 5 is a sectional view of a three-part electric wire according to an embodiment of the present invention.

FIG. 6 is a sectional view of a four-part electric wire according to an embodiment of the present invention.

FIG. 7 is a sectional view showing a conventional electric wire.

FIG. 8 is a perspective view of a conventional magnetic head and an enlarged cross-sectional perspective view of a winding.

[Explanation of symbols]

1 Conductor 2 Conductor 3 Insulating film 4 Insulating film 13 Magnetic core 14 Magnetic core 15 Magnetic core

Claims (1)

[Claims] 1. A magnetic head comprising a wire winding wound in a coil around a magnetic core having a magnetic gap for the purpose of mutual conversion such as electrical energy to mechanical energy using magnetic energy as a medium. 1. A magnetic head comprising a winding in which conductor portions of the same type or different types are formed of two or more layers of structure mutually insulated by an insulating film along the periphery of the winding.