JPH058705U - Magnetic head - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a magnetic head capable of securely fixing a substrate for input / output wiring of electric signals. [Structure] Core holders 3 and 4 for holding magnetic cores are provided with recesses for accommodating a substrate 5 for wiring to the outside. The recess extends parallel to the substrate 5,
A magnetic head having a substrate pressing portion 3a for pressing the substrate 5 from above the recess is obtained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of a magnetic head.

[0002]

[Prior Art]

 A conventional magnetic head of this type will be described with reference to FIGS. 2, 3 and 4. A conventional magnetic head has a magnetic core around which recording and reproducing windings are wound. As shown in FIG. 4, this magnetic core has cores 1 and 2 whose side cross-section is machined into a substantially U shape, one end of which is magnetically connected, and the other end of which is magnetic. A gap G is formed. Generally, a gap material made of a non-magnetic material is sandwiched in the magnetic gap G to maintain its size. This magnetic core is held by core holders 3 and 4, as shown in FIG. For example, a magnetic head is assembled by fixing a wound magnetic core to a core holder with resin, sandwiching a gap material near the magnetic gap, and fixing the core holder by screwing or the like. In the drawing, the upper surface of this magnetic head is polished to R surface, and the magnetic medium slides on this surface. Further, referring to FIG. 2, a recess is formed on the side opposite to the sliding surface of the core holders 3 and 4. A base plate 5 for input / output (electrical signal) wiring of the magnetic head is attached to the core holder 4 with screws 6 in the recess. Each end portion 7 of the winding wound around the magnetic core is soldered to the soldering portion 5a on the board 5, and a cable from an electronic device or the like is soldered to the soldering portion 5b. ing. The screw 6 also serves as the ground.

[0003]

[Problems to be solved by the device]

 In the conventional magnetic head, since the substrate 5 is fixed at one point by the screw 6 as described above, the substrate 5 is turned over when an external force is applied from a cable or the like as shown by an arrow F in FIG. This causes a disconnection failure such as a disconnection of the winding wire or a damage from the soldering portion 5a. An object of the present invention is to provide a magnetic head capable of securely fixing an input / output board.

[0004]

[Means for Solving the Problems]

 According to the present invention, in a magnetic head having a core holder for holding a magnetic core and a concave portion formed in the core holder and accommodating a substrate for wiring to the outside, the concave portion is provided with respect to the substrate. A magnetic head having a substrate pressing portion that extends in parallel with each other and presses the substrate from above the recess is obtained.

[0005]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a magnetic head according to this embodiment. In the figure, the same or corresponding parts as in the conventional example are designated by the same reference numerals. A magnetic core around which recording and reproducing windings similar to those in the conventional example are wound is held by core holders 1 and 2. In the figure, the bottom surface is polished to the R surface, and the magnetic medium slides on this surface. A recess is formed on the side opposite to the sliding surface of the core holders 3 and 4. This recess is formed by three wall surfaces and a bottom surface. A base plate pressing portion 3a is formed on one surface of the three wall surfaces. After the winding from the magnetic core is pulled out from the soldering portion 5a, the substrate 5 for the input / output wiring of the magnetic head is connected to the substrate pressing portion 3a of the substrate 5 by the bottom surface of the recess and the substrate pressing portion 3a. It is inserted in the gap and fixed by screws 6. Each end portion 7 of the winding wound around the magnetic core is soldered to the soldering portion 5a on the board 5, so that a cable from an electronic device or the like is soldered to the soldering portion 5b. ing. The screw 6 also serves as a ground. In the magnetic head manufactured as described above, the substrate 5 is held by the screw 6 and the substrate holding portion 3a against the core holder. The position where the substrate pressing portion 3a is provided is not limited to this embodiment, but it is preferable that the substrate pressing portion 3a is located far from the retaining screw on the substrate surface.

[0006]

[Effect of the device]

 In the magnetic head according to the present invention, the board is securely fixed to the core holder by the screw and the board holding portion. Therefore, disconnection failure due to the external force applied to the substrate is unlikely to occur.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a magnetic head according to the present invention.

FIG. 2 is a perspective view showing a conventional magnetic head.

FIG. 3 is a perspective view showing a conventional magnetic head.

FIG. 4 is a diagram showing a magnetic core applied to a conventional example and this example.

[Explanation of symbols]

 1, 2 cores 3, 4 cores holder 5 substrate 6 screw 7 end of winding G gap

Claims (1)

Claims for utility model registration: 1. A magnetic head comprising: a core holder for holding a magnetic core; and a recess formed in the core holder for accommodating a substrate for wiring to the outside. Is a magnetic head having a substrate pressing portion that extends parallel to the substrate and presses the substrate from above the recess.