JPH0227379Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic head in which a conductor pattern for winding is formed on a core holding member.

In a magnetic head, which is formed by abutting a pair of core halves each having a winding thereon, processing the winding is an extremely difficult task, and conventionally there have been many accidents such as wire breakage.

For this reason, the applicant proposed arranging a relay plate made of a printed circuit board on the inner surface of the side of the core holding member as disclosed in Publication of Utility Model Publication No. 53-6413, but such a structure is not suitable for arranging a printed circuit board. In addition to being limited in the miniaturization of the magnetic head, the process of adhering the magnetic head and other work involved is intrusive, making it difficult to mass-produce.

The present invention solves these conventional drawbacks, and one embodiment thereof will be described in detail below with reference to the drawings.

FIG. 1 shows a portion related to one core half of an embodiment of a monaural recording or reproducing magnetic head according to the present invention, and shows a required winding portion 2 ₁ around which a winding 1 is wound. The core half 2 having the core half 2 is fixed to a flat plate-shaped holding member 3 at its back surface opposite to the abutting surface ₂₂ forming the gap.

The holding member 3 is formed of an insulating substrate, for example, a ceramic substrate, and has a length sufficient compared to the length l ₁ of the core half 2, and its front surface 3 ₁ and rear surface 3 ₂ are extremely smooth.

The core half 2 may have its tape-facing surface 2 ₃ substantially aligned with the corresponding side surface 3 ₃ of the holding member 3 and may be fixed to the surface 3 ₁ of the holding member 3 with an adhesive. In this embodiment, a conductive metal layer 4 is provided on a required area of the surface ₃₁ by vapor deposition or printing, the core half 2 is placed on this metal layer 4, and the boundary with the metal layer 4 is It is welded and fixed by irradiating laser light along the direction.

In addition, in the vicinity of the winding portion 2 _{1 of the core half 2 of the surface 3 1} excluding the area where the metal layer 4 of the holding member ₃ is formed,
Required first conductor pattern portions _{5 1} , 5 ₂ to which each winding start and winding end 1 1 , 1 ₂ of the winding are to be connected, respectively.
is provided, and the winding start end 1 ₁ is a conductor pattern part 5 ₁
Furthermore, the winding end ends 1 ₂ are connected to the conductor pattern portions 5 ₂ in correspondence with each other.

Furthermore, in the vicinity of the side surface 3 ₄ on the opposite side to the side surface 3 ₃ of the back surface 3 ₂ of the holding member 3, a conductor wire 6 ₁ for external connection and a conductor wire 6 for interconnection with the winding of the other core half, which will be described later, are provided.
_{2 are} connected to the holding member _{3 ,} respectively _.
A through hole 8 that penetrates from the front surface 3 ₁ to the back surface 3 _2
1 , 8 ₂ and the required third conductor pattern portions 9 ₁ , 9 ₂ formed on the back surface 3 ₂ are connected to the corresponding first conductor pattern portions 5 ₁ , 5 ₂ , respectively.

The core half 2 fixed to the surface ₃₁ of the holding member 3 in this way is connected to the remaining core half 2' fixed to the holding member 3' in the same way and the required spacer 10.
After abutment and bonding as shown in FIG. It may be housed in a required shield case depending on the situation.

The magnetic head of the present invention having the above configuration has a simple configuration because the conductive pattern portions that connect the ends of the windings and the connecting wires are formed on the holding member itself that forms the core half. A small magnetic head can be realized without requiring additional space for arranging a printed circuit board.

In addition, the conductor pattern section that connects the conductor pattern section for connecting the end of the winding wire and the conductor pattern section for connecting the external conductor wire is simply formed on the opposite side of the surface to which the core half is fixed via the through hole. Since the lead wires of the windings are fixed without being connected to each other, it is possible to prevent poor insulation or disconnection caused by the lead wires of the windings coming into contact with other windings, holding members, or cases, etc., as in the case of conventional wires, and also to prevent the lead wires of the windings from coming into contact with other windings, holding members, cases, etc. Since the conductor pattern portion for the connection conductor wire is formed not on the surface but on the outside surface, the work of connecting the connection conductor wire to the conductor pattern portion is facilitated.

Note that the present invention is not limited to the monaural channel of the above-mentioned embodiment, but can be applied not only to two-channel stereo but also to two-channel stereo by providing the holding member with a plurality of core halves, windings attached to these, and conductor pattern parts. , it is obvious that it can be applied to other multi-channels as well.

[Brief explanation of the drawing]

FIG. 1a is a perspective view of a surface on which the core half is fixed in relation to one core half of an embodiment of the magnetic head according to the present invention, FIG. 1b is a plan view of the opposite surface, and FIG. Figure c is a sectional view taken along the line X-X of Figure 1b;
Figures 2a and 2b show a front view and a plan view, respectively, of a magnetic head according to the present invention. 1...Winding, 1 ₁ ...Starting end of winding, 1 ₂ ...
End of winding, 2, 2'...Core half, 3,
3'... Holding member, 5 ₁ , 5 ₂ ... First conductor pattern portion, 6 ₁ , 6 ₂ ... Connection conductor wire, 7 ₁ , 7 ₂ ...
Second conductor pattern section, 8 ₁ , 8 ₂ ... through hole, 9 ₁ , 9 ₂ ... third conductor pattern section, 10 ...
…Spacer.

Claims (1)

[Claims for Utility Model Registration] Core halves that are abutted against each other via a required spacer to form a required working gap, and a winding wound around the winding portion formed on the core half. In a magnetic head having a wire and an insulating plate-like holding member that holds a surface opposite to an abutting surface of the core half, the holding member is connected to the winding portion of the holding member. a first conductor pattern portion formed to connect the winding start and winding end of the winding, respectively, on opposing surfaces and in the vicinity of the winding portion; and on the other surface of the holding member and in the holding member. At the end of the member, a second conductor pattern portion formed to connect a connecting conductor, and a through hole penetrating between one surface and the other surface of the holding member, the first conductor pattern portion. A magnetic head comprising: a third conductor pattern portion formed on the other surface of the holding member and in the through hole to connect the conductor pattern portion with the second conductor pattern portion. .