JPH03100907A - Magnetic head - Google Patents

Abstract

PURPOSE:To produce the magnetic head at a low cost by coating a magnetic core with an insulation covering body for electric wire and winding a lead wire on the magnetic core via this insulation covering body. CONSTITUTION:The magnetic head 1 is constituted by cladding the insulation covering body 5 on the part which is projectingly provided at one end of a slider 2 consisting of ferrite and constitutes the magnetic core 4 as a part of a winding part 3. The lead wire 7 is wound on the core 4 via the covering body 5, by which the magnetic head is formed. The insulation resistance between the core 4 and the lead wire 7 is assured by the covering body 5. This covering body 5 which remains after removing a square body 6 of the square electric wire 8 and is cut to a suitable length is used as the covering body 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head, and particularly to a magnetic head used in a magnetic recording device that is easy to manufacture.

[Prior Art] Conventionally, in a magnetic head in which a lead wire is wound around a magnetic core made of Mn-Zn ferrite or a metal magnetic material to form a coil, the insulation resistance between the magnetic core and the lead wire is low. In order to ensure this, a bobbin molded with insulating resin is attached to the magnetic core, and a lead wire is wound over the bobbin to form a coil.

[Problems to be Solved by the Invention] However, since the magnetic head is extremely small, the above-mentioned bobbin is also extremely small. Therefore, it is difficult to manufacture and maintain the bobbin mold, resulting in an increase in the cost of the magnetic head.

Additionally, conventional bobbins tend to generate burrs during molding, which affects the performance of the magnetic head.

This was a cause of lowering its reliability.

The present invention has been made in view of the above circumstances, and its objective is to provide a magnetic head that can be manufactured at low cost and has stable performance.

[Means for Solving the Problems] In order to solve the above problems, the present invention has the following configuration. That is, in a magnetic head in which a lead wire is wound around a magnetic core to form a coil, the magnetic core is covered with an insulating covering for electric wire, and the lead wire is connected to the magnetic core through the insulating covering. It is wrapped. In this case, the insulation sheath for the electric wire can be one obtained by removing the rectangular conductor of a commonly used rectangular electric wire and cutting it into a predetermined length.

[Example] Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention. The magnetic head 1 of the present invention includes an insulating coating for electric wires on a portion that will become a magnetic core 4, which is a part of a U-shaped winding portion 3, which is protruded from one end of a slider 2 made of Mn-Zn ferrite. The lead wire 7 is wound around the magnetic core 4 with the insulating cover 5 interposed therebetween. Insulation resistance between the magnetic core 4 and the lead wire 7 is ensured by the insulation coating 5.

In addition, as shown in FIG. 2, the insulating sheath 5 for the electric wire is made by removing the rectangular body 6 of the rectangular electric wire 8, and then cutting the remaining sheath 5 made of insulating resin into an appropriate length. I am using a cut piece. In this case, after the cutting, a cut is formed in the longitudinal direction and the magnetic core 4 is mounted so as to cover the magnetic core 4. Since the insulating cover 5 is naturally manufactured in the process of manufacturing commonly used electric wires, it is not necessary to specially manufacture it using a mold like a conventional bobbin.

[Effects of the Invention] As explained above, the present invention provides a magnetic head in which a lead wire is wound around a magnetic core to form a coil, in which the magnetic core is covered with an insulating sheath of a rectangular electric wire. Since the lead wire is wound around the magnetic core through the insulating coating, the magnetic head can be manufactured at low cost. Furthermore, unlike conventional bobbins, there is no occurrence of flash, so there is no loss of reliability of the magnetic head, and it is possible to supply a magnetic head with stable performance.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the magnetic head of the present invention, and FIG. 2 is a perspective view showing the structure of a rectangular electric wire. l: magnetic head 2 varnish slider 3: winding section 5: wire coating 6: rectangular conductor 7: lead wire 8: rectangular electric wire

Claims (2)

[Claims] (1) In a magnetic head formed by winding a lead wire around a magnetic core to form a coil, the magnetic core is covered with an insulating sheath for electric wire, and the lead wire is connected to the magnetic core through the insulating sheath. A magnetic head characterized by being wrapped with. (2) In a magnetic head formed by winding a lead wire around a magnetic core to form a coil, the insulating sheath obtained by removing the rectangular conductor of the rectangular electric wire is cut to a predetermined length, and the insulating A magnetic head characterized in that the magnetic core is covered with a covering, and a lead wire is wound around the magnetic core via the insulating covering.