JP2503363Y2 - Magnetic head - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a magnetic head having a rectifying diode bridge element therein, which is particularly used in a digital magnetic tape recorder, a magnetic card reader and the like.

[Prior Art] FIG. 3 and FIG. 4 show examples of conventional digital magnetic heads incorporating a rectifying diode bridge element.

As shown in the drawing, a winding frame 2 around which a winding 3 is wound and a lead terminal 4 projecting to the outside is provided on two linear magnetic cores of a C-shaped magnetic core. 1'is fixed to the holders 6 and 6'by adhesives. The two magnetic cores 1 and 1'are tightened together with a butting holder 6 and 6'with a tightening screw 8 with a spacer material 5 such as a titanium foil having a magnetic gap formed at a tip portion facing the magnetic medium. A rectifying diode bridge element 7 is adhered to the lower surface of the back gap 9 corresponding to the magnetic gap of the clamped magnetic cores 1, 1 ', and the output terminal 10 of the rectifier diode bridge element 7 is attached to one winding frame 2
It is soldered to the lead terminal 4 provided on the other end, and the lead terminal 4 and the input terminal 11 of the other winding frame 2'are used for electrical output. A magnetic head having a built-in rectifying diode bridge element 7 is formed by polishing the tip portions of the magnetic cores 1, 1'into an arc shape.

[Problems to be Solved by the Invention] However, since the rectifying diode bridge element 7 of the conventional magnetic head is attached to the lower surface of the back gap 9, the dimension from the magnetic gap to the back surface becomes large and it cannot be thinned. was there.

[Means for Solving the Problems] In the present invention, except for such drawbacks in the related art, one winding frame in which the winding 3 is wound around the linear body of the pair of substantially C-shaped magnetic cores. The lead terminal 4 projecting outward from the collar 2 is connected to the output terminal 10 of the rectifying diode bridge element 7 arranged on the side surface of the magnetic core 1, and the input terminal 11 of the bridge element 7 is external. The magnetic core 1'provided with the substrate connected to the lead terminal 4'provided on the other winding frame 2 ', which is connected to the wiring board for coupling, is nonmagnetic in the magnetic gap portion between the magnetic core 1 and the magnetic core 1'. The magnetic head is formed by sandwiching and abutting the spacer material 5.

[Operation] The rectifying diode bridge element 7 is fixed to the side surface of the winding frame 2 in parallel with the body of the magnetic core 1, and its output terminal 10 is connected to the lead terminal 4 of the winding frame 2 and the input terminal 11 is also externally coupled. Since the magnetic head is attached to the wiring board for use, the height of the magnetic head becomes low and the magnetic head becomes thin.

[Embodiment] An embodiment of the magnetic head of the present invention is shown in FIG. 1 and FIG.

As shown in the drawing, the lead terminal 4 and the output terminal of the rectifying diode bridge element 7 projecting outward from the flange of the winding frame 2 in which the winding 3 is wound around the linear body of the C-shaped magnetic core 1.
Combine 10 The lead terminal 4, the output terminal 10 and the input terminal 11 of the rectifying diode bridge element 7 are connected to a substrate 12 on which external coupling wiring is printed. The lead terminal 4'of the winding frame 2'of the other magnetic core 1'is connected to the other substrate 12 '. Rectifying diode bridge element 7
A non-magnetic spacer such as a titanium foil in which the magnetic core 1 to which is attached and another magnetic core 1'are fixed to the holders 6 and 6'by an adhesive and a magnetic gap is formed at the tip portion facing the magnetic medium. Inserting the material 5 and butt tightening screw 8
Fix with. A magnetic head is formed by polishing the magnetic gap portions of the assembled magnetic cores 1, 1'into an arc shape.

[Advantage of the Invention] As described above, according to the present invention, since the lead terminal 4 and the rectifying diode bridge element 7 of the winding frame 2 are disposed on the side surface of the magnetic core 1, the height of the magnetic head is low and thin. Easy to shape.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the magnetic head of the present invention, FIG. 2 is a longitudinal sectional front view of the assembled magnetic head in FIG. 1, FIG. 3 is an exploded perspective view of an example of a conventional magnetic head,
FIG. 4 is an assembled cross sectional front view of FIG. 1,1 ': magnetic core, 2,2': reel, 3: winding, 4,4 ': lead terminal, 5: spacer material, 6,6': holder, 7: rectifying diode bridge element, 8: Tightening screw, 9: back gap, 1
0: Output terminal, 11: Input terminal, 12, 12 ': Board.

Claims (1)

(57) [Scope of utility model registration request] 1. A rim of one winding frame 2 having a winding 3 wound around a linear body of a substantially C-shaped magnetic core 1, 1'composed of a magnetic material and extending outward from the flange. The protruding lead terminal 4 is connected to the output terminal 10 of the rectifying diode bridge element 7 arranged on the side surface of the magnetic core 1, and the input terminal 11 of the rectifying diode bridge element 7 is a wiring for external coupling. A magnetic head connected to the substrate 12.