JPS60164909A - Magnetic head of magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To attain sure and simple connection even if a thin coil wire is used by providing a connecting part onto a mobile stand and installing a winding frame to the mobile stand to attain electric connection between a connection pin and the connection part. CONSTITUTION:After the connecting part 25 is placed and fixed on the mobile stand 10, one end of electric wires 34-37 is fixed to the front end of circuit use copper foils 27-30 by soldering the wires. Coils 22-24 are wound around an axis 16 of the winding frames 14, 15 and wound around both ends 20a-20c, 21a, 21b. Each connecting pin is opposed from the upper part to the rear end of the copper foils 27-31 for circuit to mount each winding frame to a recording/reproducing core 11a and an erasure core 12. Thus, each connecting pin is connected and fixed easily to the upper face of the rear end of the copper foils 27- 31.

Description

[Detailed Description of the Invention] Technical Field The present invention is provided with a magnetic head that is mounted on a movable table that is moved by touching the surface of a magnetic recording medium and performs recording and reproduction on the magnetic recording medium. The present invention relates to a magnetic recording/reproducing device, and particularly to a magnetic head thereof.

BACKGROUND ART Conventionally, as shown in FIG. 1, for example, in this type of magnetic head, a pair of recording/reproducing cores 2 are provided protrudingly on a moving table 1 made of a metal plate, and one recording/reproducing core 2 is provided with a pair of recording/reproducing cores 2. A coil 3 is wound thereon, and an erasing core 4 is placed on the moving table 1.
is provided protrudingly, and a coil 5 is wound around the core 4. The ends of a printed circuit board 6, which is flexible and has a predetermined number of circuit copper wires 7 printed on the upper surface thereof, are fixed on the moving table 1, and each circuit copper a1
The upper surface of the end portion of 87 has the end portion 3a of each of the two coils 3 and 5.
, 5a are each fixed with solder.

However, in this conventionally configured magnetic head, each -
When soldering the ends 3a and 5ε1 of the coils 3 and 5 to each circuit copper foil 7, the outer diameter of the coil 3.5 is 40 mm.
11+n~70μ01'C-atsu (, because it is very thin,
The end portions 1a and 5a of each of the coils 3 and 5 had to be held in place with a bottlelet or the like and the process was very troublesome. 1. Also, during this connection work, each coil 3, 5 is disconnected and the insulation sheath 11 of the IC coil 3, 5 is cracked, resulting in a short circuit between each coil 3.5!
There was a risk of it getting stiff. Furthermore, in this conventional example, the end of the grounding copper foil 8 is connected to the movable platform 1 by soldering, but the end of the grounding copper foil 8 is
There is a problem in that it is difficult to perform connection work because of the proximity to the file 5.

Purpose of the Invention This invention was made in order to eliminate the 1fi point between the above, and its purpose is to connect the end of each coil and the electric wire for transmitting and receiving electricity to and from the coil. Iff 11 is a magnetic head of a new magnetic recording and reproducing device that can be easily and reliably connected to an IC connection part.
It's about being able to do something.

Structure of the Invention In order to achieve the above-mentioned object, in the present invention, each end of a coil wound around a winding frame attached to the outer periphery of a magnetic helad core is wound separately and connected. A plurality of connection bins are provided protruding from the winding frame body, and a connecting portion to which an electric wire for transmitting and receiving an electric signal to and from the coil is connected is provided on the movable table. When the body is placed on the moving platform, the connecting bin and the connecting portion are electrically connected. 1 Example Below, an example embodying this defense' is shown in Figures 2 to 5.
This will be explained according to the diagram. As shown in Figures 2 and 5,
A moving stage 1 is moved on the surface of a disk-shaped magnetic recording body (not shown) in the radial direction J, that is, in the direction of the arrow in FIG.
0 is formed of a metal plate, and a pair of recording and reproducing cores 11 formed of magnetic 111 are mounted on the rear upper surface of the movable table 10.
a, 11b and for erasing: A 12 are provided projecting through the movable table 10 at predetermined intervals. A pair of recording/reproducing cores 11a, 111] are connected between their upper portions by a connecting rod 13 made of a magnetic material. One of the recording and reproducing cores 11a and the erasing core 12 are made of synthetic resin and have a pair of winding frames 1/1/2 having the same shape.
1 and 15 are respectively attached.

Each winding frame 14, 15 has a hollow shaft part 1 (3), which has a rectangular cross section, and is integrally formed with C projecting at a predetermined interval on both the upper and lower parts and the middle part on the outer periphery of the shaft part 16. The shaft portion 16 is fitted into each of the cores 11a and 12 at the shaft portion 16.

In addition, the three flange portions 17 to 1 of each winding frame body 14.15
On the front surface of the flange portion 17 at position R1 of 9, there are three connecting bins 20a, 20c, 2 which protrude forward in FIG.
1a to 21c are each formed integrally. Although the left and right winding frames 14 and 15 are the same, as shown by chain lines in FIG. Since the connecting pin 21c is unnecessary for assembly, it is removed after molding.

A pair of recording and reproducing coils 2 having a wire diameter of 40 to 70/1IIl is disposed on the outer periphery of the shaft portion 16 between each flange portion 17 to 19 of the winding frame body 14 attached to the recording and reproducing core 11a.
2.23 are respectively wound, and both ends 22a and 23a of each coil 22.23 are connected to predetermined connection bins 20a to 20c.
are wrapped around each. Further, an erasing coil 24 having a wire diameter of 40 to 70 μm is wound around the outer periphery of the shaft portion 16 between the flange portions 17 and 18 of the winding frame 15 attached to the erasing core 12. /4a is wound around each connection pin 21a, 21b.

A moving table 10 is provided in front of each winding frame 1/1.15.
A connecting portion 25 formed in a block shape from an insulating synthetic resin is placed and fixed on the top, and a recess 26 with a semicircular cross section extending vertically over the entire thickness of the connecting portion 25 is provided on the right side of the connecting portion 25.
has been formed. Further, on the upper surface of the front mu C connection part 25, Gosen's circuit copper foils 27 to 31 corresponding to the respective connection bins 20a to 20c, 21a, and 21b are wired, and two strips of circuit copper foil 28 are wired. .31 is connected at its forward end. Further, on the right side surface of the connecting portion 25) and the inner surface of the recess 26, there is a copper foil 32 continuous to the circuit copper foil 31.
At the same time, as shown in FIG. 4, an arc-shaped copper foil 33 that is continuous with the circuit copper foil 32 is printed and wired on the outer periphery of the recess 26 on the lower surface of the connecting portion 25.

Then, the connecting portion 25 is in a state d5 arranged on the moving table 10, and each of the connecting bins 20a to 20C121a,
211+ or each circuit copper foil 27-, 3-1 is installed close to the rear end and upper surface of each connection bin 20a to 20c, 2
1a, 2'1b each -1i/L/22~
The ends 22a to 24a of 24 are electrically connected to copper a527 to 31 by soldering.

Further, each of the coils 22 to 30 is attached to the front end of each of the copper foils 27 to 30.
Electric wires 34 to 3 for transmitting and receiving electrical signals to and from 24
7 are electrically connected to each other by soldering wires +'11'. Furthermore, by flowing a conductive adhesive into the recess 26, the copper foil 33 and the movable base 10 are connected, and each =1 tile 22 to 24 is connected to the movable base 10 through the copper foil 28, 31, 32. is shorted to.

In addition, as shown by the dotted line C in FIG. 2, on the lower surface of the movable table 10 there are provided a magnetic recording body (not shown) and gears 17 facing each other. A north portion 39 provided therein is provided in a protruding manner.

Now, when assembling the magnetic head configured as described above, first, the connection part 25 is placed and fixed on the moving table 10, and then each electric wire is attached to the front end of each circuit copper foil 27 to 30. 34
~ 37 is fixed with solder (=J-C). Then, a conductive adhesive is flowed between the recess 26 of the connecting part 25 and the moving table 10, and the copper foil 33 and the moving table 10 are bonded together. In this case, since the inner peripheral edge of the recess 26 is formed in an arc shape and the joint portion of the movable table 10 is large, the conductive adhesive connects the connecting portion 25 and the movable table. 10 and [
It is possible to easily penetrate into the adhesive and securely entangle the copper r) 33 and the moving table 10.Furthermore, it is possible to determine the position of the adhesive application (A)11. .

Next, the coils 22 to 24 are wound around the axis t; Ii I C5 of each winding frame body 14, 15, and both ends 2
Each connection bin 20 corresponds to 1 each of 2a- and 2'la.
a ~ 20c, 2'la, 21+1.

And each connection bin 20a-2()C, 21, 1, 21
1) Remove the copper foil for each circuit 27~3' + 17) Attach the phase λ・1 from one side to the rear end! In this state, each winding frame body is attached to the recording/reproducing If II a 1'1a and the fire extinguishing core 12. Depending on the error, each connection bin 20a to 20c,
21a, 211) can be easily disposed on two sides of the rear end of each copper foil 27-31. Therefore, in this state, hold the ends 22a to 2/1a of each coil 22 to 24 with a pin and remove the ends 22a,
24a can be easily connected and fixed to the 6 copper h27-31 with solder.

In this case, the solder is applied to each connection bottle 20a to 20c.
, 21a, fill 21+1, iU? The heat of this solder removes the insulating coating from the ends 22a to 24a of the coils 22 and 27' to the other coils 22 to 24. The circuit copper foils 27 to 31 are electrically connected to each other.

Next, by connecting the upper ends of each of the recording and re-living cores 118'' and 11b with the connecting rod 13, it is possible to completely cover the rough angle of the magnetic head. Since the winding frame 14.1!:l of CLl:, -ta.
6, the connecting portion 25 can be easily short-circuited to the moving table 10.

Effects of the Invention As mentioned in the Song Dynasty V, R 2nd Edition, this invention provides a method in which each end of a coil wound around a winding frame attached to the outer periphery of a magnetic herad core is wound separately and connected. As shown in FIG.
By installing this connecting portion on the moving table 1 and installing the winding frame body on the moving table, the connecting pin and the connecting portion are electrically connected. Even if the coil is used, the coil can be connected to the connection part reliably and easily, reducing manufacturing costs (G
It produces a great effect.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a conventional example of this invention, and FIGS.
The drawings show an embodiment embodying the present invention, in which Fig. 2 is a plan view, Fig. 3 is an enlarged front view of the winding frame, Fig. 4 is a bottom view of the connecting part, and Fig. 4 is a bottom view of the connecting portion. Figure 5 is a perspective view. In the figure, 10 is a moving base, 11a and 11b are recording and reproducing cores, 12 is an erasing core, 7.14.15 is a winding frame,
20a to 20c, 21a to 21c are connection pins, 2
2.23 is the Knee 1. 24 is the erasing coil, 25 is the connection part, 34 to 37 are electrical patents.

Claims (1)

[Claims] 1. A movable platform 10 that is moved while being fixed on the surface of a magnetic recording medium.
) is installed on the outer periphery of the magnetic head core (11a, 11b, 12) in a 141 recording and reproducing apparatus equipped with a magnetic head f'-1() mounted on the magnetic recording medium for recording and reproducing information on the magnetic recording medium. The coil (
Each end (22a...24a) of the winding frame body (14) is wound separately and connected
, 15) protruding from a plurality of connection pins (20a to 20
C, 21a, 2 lb), and the moving table (i o
>-1-, and the electric line (to 3/l, 3
7) and a connecting portion (25) to which the connecting pins (208 to 20c are connected);
, 21a, 21b) and the connecting portion (25) are electrically connected to each other.