JP2000215426A - Magnetic head device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable sure connection even with a structure which has magnetic heads on a low capacitance side and high capacitance side and has a large number of wiring. SOLUTION: This magnetic head device is constituted by mounting a magnetic head unit which is built with the magnetic head core parts for the low capacitance and high capacitance in a magnetic head slider and has a bobbin 61 mounted in the magnetic head core parts and a coil wound on the bobbin 61 to a gimbals member. A supporting plate 66 is extended to a collar plate 65 of the bobbin 61 and leading terminal parts 68 for connection of the winding ends wound at the coil and leading terminal parts 68 for connection of the wiring around the magnetic head core are respectively formed at the supporting plate 66. A terminal substrate 80 which has a plurality of wiring junctures and is connected with connection wiring to the respective wiring junctures is disposed at the magnetic head unit described above by electrically connecting its wiring junctures to the leading terminal parts 68.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head device having a structure in which a coil winding for a magnetic head and wiring around the coil winding can be connected well to connection wiring.

[0002]

2. Description of the Related Art Conventionally, a floppy disk drive which has been used as one of the basic information recording devices of a personal computer has a storage capacity of 720 k of the floppy itself.
Since B is as small as about 1.44 MB and the information reading speed is slow, various attempts have been made to develop a high-capacity drive other than a floppy disk drive. Against this background, in recent years, there has been a need to develop a magnetic recording device that is compatible with floppy disks and can use disks with much higher capacity than floppy disks, and that can read and write information at high speed. Is underway.

The magnetic head device shown in FIGS. 11 to 14 is an example of a magnetic head device for a high-capacity drive of this type which is compatible with a floppy drive. A triangular plate-shaped load beam 2 is connected to a fixed mount 1 connected to a drive drive mechanism of the apparatus, and a mounting mount 3 is provided at the tip of the load beam 2. A gimbal suspension member 4 mounted on the mounting mount 3 , The magnetic head slider 5 is mounted. As shown in FIGS. 13 and 14, a high-capacity magnetic head core portion H1 and a low-capacity magnetic head core portion H2 are incorporated in the magnetic head slider 5 so as to be separated from each other.

FIGS. 13 and 14 show the mounting state of the gimbal suspension member 4 on the mounting mount 3 and the mounting state of the magnetic head slider 5 on the gimbal suspension member 4, respectively. FIG. 13 and FIG. A plate-shaped gimbal suspension member 4 is provided so as to be closed, and a magnetic head slider 5 is attached so as to protrude outward at the center of the gimbal suspension member 4. A coil member 7 for the high-capacity magnetic head core H1 is provided outside the mounting mount 3, and coil members 8 and 9 for the low-capacity magnetic head core H2 are provided.
Here, the magnetic head core H2 on the low capacity side is used for reading (R
/ W) and a coil member 9 for erasing (for ER).

In the magnetic head device shown in FIGS. 11 to 14, the lead wires 11 and 12 from the coil member 7 for the high-capacity magnetic head core H1 and the coils of the low-capacity magnetic head core H2 are provided. Lead wire 1 for reading and writing from member 8
3, 14; a lead 15 serving as a common set for reading and writing of the coil member 8; a lead 16 from the coil member 9; a common lead 17 of the coil member 9; A grounding lead 18 is provided. Here, in the low-capacity magnetic head H2,
Since the magnetic head H2 slides on a magnetic recording medium such as a floppy disk, a ground lead 18 is provided as a measure against static electricity. Against this background, even if the common lead lines 15 and 17 are grouped together, the wiring from the magnetic head device is connected to the lead lines 11 and 1 as shown in FIG.
2, 13, 14, 15, 16, and 18 are required.

[0006]

In the magnetic head device having the above-described structure, in order to connect seven lead wires to the drive circuit of the magnetic head device, the relay board 2 shown in FIG.
0 is provided at the tip of the load beam 2,
The lead wires are connected to the printed circuit formed at 0 by soldering, and the stranded connection wires 21 and 22 for connecting to the printed circuit of the relay board 20 to the drive circuit of the magnetic head device are connected. Wire ends were connected by soldering. However, in the magnetic head device, the slider portion is a very small part having a size of about several mm square, and the load beam 2 supporting the slider portion is also a small component. Therefore, the small relay substrate 20 mounted on the flexure 2 is small. However, positioning and soldering as many as seven outgoing leads is an extremely complicated task, and positioning of the outgoing leads is difficult, so that reliable soldering work has been difficult.

The present invention has been made in view of the above circumstances, and has a structure in which a head structure having a magnetic head and a structure having a large number of wirings can be securely connected without using a relay board in a load beam portion. It is an object of the present invention to provide a magnetic head device.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a magnetic head core in which a magnetic head core portion is incorporated in a magnetic head slider which is moved relative to a magnetic recording medium; A magnetic head having a mounted bobbin and a coil wound on the bobbin is configured to be attached to a gimbal member, a terminal block is extended on a flange plate of the bobbin, and the terminal block is wound around the coil. A lead terminal portion for connection of the turned winding end and a lead terminal portion for wiring connection around the magnetic head core were respectively formed, and a plurality of wiring connection portions were provided, and connection wiring was connected to each wiring connection portion. A terminal board is provided on the magnetic head unit so as to electrically connect the wiring connection portion to the lead terminal portion. If various wirings for the bobbin of the magnetic head part are wound around the lead terminal part and connection wiring is connected to the wiring connection part of the terminal board, the wiring of the lead terminal part is soldered to the terminal board by means such as soldering. By connecting, the relay board conventionally required can be omitted, and wiring connection becomes easy.

Further, according to the present invention, the magnetic head slider is provided with a low-capacity magnetic head core and a high-capacity magnetic head core, and the low-capacity magnetic head core includes a reading core and an erasing core. The reading core is provided with a bobbin, and the erasing core is provided with a bobbin, and each bobbin is provided with a lead-out terminal portion. As in this structure, having a plurality of low-capacity and high-capacity magnetic head cores increases the number of connection wires.However, if connection wires are connected using a lead terminal portion provided on a bobbin and a terminal board, Thus, even with many connection wirings, connection work can be performed more easily than before. Furthermore, the present invention
A bar member made of a magnetic material is provided on each of the reading core and the erasing core of the low-capacity side magnetic head core portion via a magnetic gap, and these bar members penetrate the gimbal member and the back side of the gimbal member. And a back bar is attached to the tip side of the bar member, and a magnetic circuit is constituted by the bar member and the back bar. According to the present invention, the magnetic head core portion is supported by a mounting mount, and the mounting mount is supported by a load beam, and a cutout portion is formed around a portion of the mounting mount supported by the load beam to make the periphery of the mounting mount thinner. It is characterized by being done. By providing the notch in the mounting mount, it becomes possible to fit the terminal board into the mounting mount and mount the terminal board well, and at the same time, to contribute to downsizing and weight reduction of the mounting mount. In addition, the notch of the mounting mount can be used as a space for connection wiring, so the space for wiring connection is widened, workability during wiring is improved, and accidents such as disconnection due to erroneous operation during wiring work are prevented. Can be prevented. The present invention is characterized in that the terminal board is exposed on one surface side of the mounting mount through a cutout portion of the mounting mount, and a lead wire is wired through the exposed portion. According to the present invention, a wiring connection portion is formed in a peripheral portion of the terminal board, a lead-out terminal portion of the bobbin is installed near a peripheral portion of the terminal board, and the lead-out portion is provided in a wiring connection portion in a peripheral portion of the terminal board. The terminal portion is soldered. If a structure is adopted in which the wiring connection part of the terminal board and the lead-out terminal part of the bobbin can be arranged close to each other, it is easy to solder the wiring connection part of the terminal board and the lead-out terminal part of the bobbin that are closely arranged. Therefore, the accuracy of the wiring work is increased and the efficiency of the wiring work is improved. Further, in the present invention, the wiring circuit connected to the coil of the erasing core,
The terminal board may be arranged from the substrate extending portion on the erasing bobbin side to the extending portion on the reading bobbin side via the main body portion of the terminal substrate.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of a magnetic head device according to the present invention will be described with reference to the drawings. Figure 1
FIG. 9 shows a first embodiment of a magnetic head device according to the present invention. The magnetic head device of this embodiment includes a magnetic head unit 31 and an elongated triangular plate-shaped load beam 32 supporting the magnetic head unit 31. The base plate 33 provided on the base end side of the load beam 32 is mainly used, and the magnetic head unit 31 is relatively moved with respect to the magnetic recording medium by attaching the base plate 33 to a drive device for the magnetic recording medium. It is configured to be able to. The magnetic head device of the present embodiment has a high-capacity magnetic head unit and a low-capacity magnetic head unit to be described later incorporated in a magnetic head slider. The low-capacity magnetic head has a capacity of 1 MB to 2 MB. Is used as a magnetic recording medium, and slides with respect to the floppy disk. The high-capacity magnetic head has a higher capacity than the floppy disk (for example, in a case of approximately the same size as the floppy disk). A magnetic recording medium containing a 200 MB (200 MB) disk is used, and magnetic information is recorded and reproduced while flying on the magnetic recording medium.

The magnetic head unit 31 is shown in FIG.
2 and 9, a hollow rectangular frame-shaped mounting mount 35, a plate-shaped gimbal member 36 mounted on the opening thereof as shown in FIGS. 1, 2, and 9, and a bottom-side central portion of the gimbal member 36 And a magnetic head slider 37 attached to the main body. The mounting mount 35 is provided by supporting protrusions 35a, 35a formed at the upper center of the rectangular frame at the distal end of the load beam 32, and is provided on both sides of the portion of the mounting mount 35 supported by the distal end of the load beam 32. A notch 35A is formed in the mounting mount 35.
Are formed thin on both sides. The gimbal member 36 is exposed through the portions opened by the cutouts 35A, 35A so that the gimbal member 36 can be easily seen from the outside. The gimbal member 36 is easily visible from the outside by these cutouts 35A, 35A,
The configuration is such that a wiring connection operation described later is easily performed.

The gimbal member 36 has a single plate shape as shown in FIGS.
0, an inner frame 41 disposed inside the inner plate 41, and an inner plate 42 disposed further inside the inner frame 41.
In the gimbal member 36, outer bridges 43, 4 formed at a coaxial position on one side and the other side of the inner peripheral portion of the outer frame body 40.
3, the inner bridges 41 are formed on the inner peripheral portion of the inner frame 41 at coaxial positions substantially orthogonal to the positions where the outer bridges 43 are formed. The inner plate 42 is supported inside the inner frame 41 by the bridges 45, 45. Here, the four corners of the outer frame body 40 are fixed to the corners of the opening of the frame-shaped mounting mount 35, and the mounting mount 35
The inside plate 42 is suspended from the inside of the opening through the outer bridges 43 and 43 and the inner bridges 45 and 45.

The magnetic head slider 37 of this embodiment is
A high-capacity magnetic head portion H3 is provided on one side in the width direction of the flat joint portion 47, and a low-capacity magnetic head portion H4 is provided on the other side. The high-capacity magnetic head H3
Is constituted by combining magnetic core halves 51 and 52 made of a magnetic material such as ferrite as shown in FIGS.
On the upper side of the magnetic core halves 51 and 52, bonding materials 50 and 53 made of a non-magnetic material such as glass for bonding the magnetic core halves 51 and 52 are provided. Is provided with an extension portion 55. Further, the portion between the magnetic core halves 51 and 52 and the joining material 50,
A magnetic gap is formed in a portion between 53. As shown in FIGS. 6 and 7, the low-capacity magnetic head H4 is provided with L-shaped bar members 58 and 59 on both sides of the I-shaped bar member 57 at the center.
Is a magnetic gap G between each of the I-shaped bar members 57.
1, a through hole 54A through which the bar members 57, 58, 59 can be inserted is formed at the center of the inner plate 42 of the gimbal member 36 as shown in FIG. Then, the bar members 57, 58, 59 are inserted through the through holes 54A into the inside of the mounting mount 35, and the joining portion 47 is fixed to the internal plate 42 by a fixing means such as an adhesive. It is attached to the gimbal member 36. The high-capacity magnetic head portion H3 is provided between the lower portions of the magnetic core halves 51 and 52 and the extending portions 55 with respect to the through holes 54B formed in the internal plate 42.
Is attached to the gimbal member 36 together with the joint 47 in a state where the lower portion of the member is inserted.

Next, the bar members 57, 58 inserted through the inner plate 42 and inserted into the inside of the mounting mount 35,
An I-shaped back bar 60 bridging these is provided on the tip end side of 59 as shown by a two-dot chain line in FIG.
The central portion of the back bar 60 is divided by an insulating material 60a to form a magnetic circuit having a magnetic gap G1 between the bar members 57 and 59, and a magnetic circuit having a magnetic gap G2 between the bar members 57 and 58. Is formed.

At the distal end of the bar members 58, 59, there are provided rectangular cylindrical bobbins 61, 62 inserted through the bar members 58, 59, and these bobbins 61, 62 are provided with windings. Thus, coils K, K as shown in FIG. 9 are formed. The bobbins 61 and 62 are respectively shown in FIG.
As shown in FIG. 5, a winding drum 63 and flange plates 65 at both ends thereof are provided, and a terminal plate 66 is formed on one of the flange plates 65 so as to extend the flange plate 65. The required number of lead-out terminal portions 68 is, for example, 3 in the structure of FIG.
A similar terminal block 70 is also formed on the flange plate 65 of the bobbin 62, and a required number of, for example, three, protruding lead terminal portions 71 are formed on the terminal block 70.
And these lead-out terminal parts 68A, 68B, 68C,
The windings of the coils K, K and other necessary wiring are drawn out and wound around 71A, 71B, 71C.

Further, as shown in FIG.
A terminal board 80 made of a printed board is provided so as to contact and bridge the terminal blocks 66 and 70 of
An extension 81 is formed on one side of the terminal board 80 so as to correspond to the lead terminal sections 68A, 68B, 68C of one bobbin 61, and an extension 82 is formed on the other side of the terminal board 80 with the other bobbin 62. Of the lead terminal portions 71A, 71B,
It is formed so as to correspond to 71C. That is, the terminal board 80 is formed on both sides of a rectangular main body portion 80A bridging the bobbins 61 and 62 and the rectangular extension portions 81 along the terminal blocks 66 and 70 of the bobbins 61 and 62, respectively. 82. In addition, wiring connecting portions 83, 84, 85, 86 are formed in the extending portion 81, and wiring connecting portions 85A, 86A, 87, 88, 8 are formed in the extending portion 82.
9 are formed, and these wiring connection portions 83, 84, 85,
A plurality of connection wirings connected to 86 are gathered and pulled out as a stranded lead wire 90, and the wiring connection portions 87, 8
A plurality of connection wirings connected to 8 and 89 are gathered and pulled out as a stranded lead wire 91. Further, one extension 81 of the terminal board 80 has a wiring connection 68
A and a projecting portion 81A are formed on the other extension 82 so as to be positioned between the wiring connecting portions 71A and 71B.
A is formed. In FIG. 10, a reference numeral 93 indicates a restraining tube through which a stranded lead wire 90 is inserted, and a reference numeral 94 indicates a restraining tube through which a stranded lead wire 91 is inserted.

Next, in the high-capacity magnetic head portion H3 having the above-described structure, as shown in FIG.
A winding window 73 is formed at the boundary between 1 and 52, and a coil winding is applied to the winding window 73, so that two connection wires are drawn from the high-capacity magnetic head H3.
Next, in the low-capacity magnetic head portion H4, two connection wires are drawn out from the bobbin 61 corresponding to the reading head, and two connection wires are drawn out from the bobbin 62 corresponding to the erase head. Six are drawn out of which
Since three common wirings can be shared, a total of four connection wirings are drawn out, and a grounding wiring is drawn out of the magnetic head portion H4, so that a total of five connection wirings are drawn out. From the above, it is necessary to connect a total of seven connection wirings of the above-described magnetic head portions H3 and H4.
Are wound around the respective lead terminal portions.

Next, the detailed structure of each of the wiring connection portions will be described below. First, two connection wires drawn out from the bobbin 61 on the side corresponding to the low-capacity reading head are connected to the upper lead terminal 68A and the center lead terminal 68B of the bobbin 61 shown in FIG. The common wiring from the bobbin 61 on the side corresponding to the reading head is wound around each of the individual lead terminals 68C of the bobbin 61. Then, the bobbin 6 shown in FIG.
The wiring of the reading coil wound around the upper extraction terminal portion 68A of the first terminal board 80 is connected to the wiring connection portion 83 on the extension portion 81 side of the terminal board 80 by soldering, and the extraction terminal portion 68B on the center side of the bobbin 61 is connected. The wiring of the reading coil wound around is connected to the wiring connection portion 84 on the extension portion 81 side by soldering, and the lead terminal portion 68C on the lower side of the bobbin 61 is connected.
The common wire wound around the extension 8
It is connected to the wiring connection part 86 on one side. With the above structure, by utilizing the main body portion 80A for wiring, the wiring of the low-capacity side coil and the wiring of the high-capacity side coil can be divided into the extension portion 81 and the extension portion 82, and can be manufactured. Workability during wiring work at the time can be improved.

Further, one of the two wires drawn out from the bobbin 62 on the side corresponding to the low-capacity erasing head is located at the upper side in FIG. The other one is wound around the lead terminal 71A, and the other one is a lead terminal 71C located on the lower side of FIG.
Is wrapped around. The wiring of the erasing coil wound around the lead terminal portion 71A located on the upper side of FIG. 10A is connected to the wiring connection portion 8 on the extension portion 82 side by soldering.
5A, and the wiring connection portion 85A is connected to the third wiring connection portion 85 from the top of the extension portion 81 via a wiring circuit 85B formed on the main body portion 80A of the terminal board 80. The wiring of the erasing coil wound around the lead-out terminal portion 71C located on the lower side of FIG. 10A in the lead-out terminal portion on the bobbin 62 side is connected to the wiring connection portion 86A on the extension portion 82 side by soldering. The wiring connection part 86A is connected to the wiring connection part 86 on the extension part 81 side via a wiring circuit 86B formed on the main body part 80A of the terminal board 80.

Finally, the two lead wires from the high-capacity magnetic head portion H3 are directly connected to the first and third wiring connection portions 87 and 89 from the top of the extension portion 82 of the terminal board 80. While being soldered, the ground wiring of the low-capacity magnetic head portion H4 is directly soldered to the wiring connection portion 88 on the extension portion 82 side without winding the lead terminal portion 71B. Then, each wiring connection part 83, 84, 8
A plurality of connection wirings individually connected to 5, 86 are bundled to form a stranded lead wire 90, and each wiring connection portion 87, 8
A plurality of connection wires individually connected to 8, 89 are bundled to form a stranded lead wire 91.

With the wiring connection structure configured as described above, even when a plurality of wirings for the magnetic head portions H3 and H4 are required, the lead wire 90 composed of the connection wiring,
91 are connected in advance to the wiring connection portions 83 to 89 of the terminal board 80.
And the terminal board 80 is attached to the mounting mount 3.
5 and the wiring connection portion 8 of the terminal board 80
3 to 89 are provided on the bobbins 61 and 62, and a lead-out terminal 68 is provided.
・ Since it is sufficient to connect the wires 71,... By soldering, it is not necessary to adopt the conventional structure in which each wire is positioned and soldered to the relay board on the load beam, The wiring connection is completed by soldering the wiring connection portions 83 to 89 positioned on the terminal board 80 to the respective wirings positioned on the extraction terminal portions 68, 71,... Of the bobbins 61, 62. As a result, the positioning of the wires to be connected can be easily performed, so that there is an effect that the wiring connection operation can be simplified. Further, the disconnection of the coil winding, which has occurred in the conventional work, can be prevented at the same time by simplifying the wiring work. From the above, as shown in FIG. 10A, as a terminal board 80 mounted on the terminal blocks 66 and 70 of the bobbins 61 and 62, a main body 80A for bridging the bobbins 61 and 62 is provided.
And an extension portion 81 attached to the terminal block 66 of the bobbin 61 and an extension portion 82 attached to the terminal block 70 of the bobbin 62 are effective.
Has wiring connection portions 83 to 86 that can be soldered to the connection terminal portions 68A, 68B, 68C of the terminal block 66, and can be soldered to the extension portions 82 to the connection terminal portions 71A, 71C of the terminal block 70 of the bobbin 62. Wiring connection portions 88, 89, which are capable of directly soldering wiring to the extension portions 82,
It is effective to have wiring connection portions 85A and 86A connected to the wiring connection portion 85 on the extension portion 81 side by a circuit on the substrate.

At the time of these wiring operations, notches 35A, 35A are formed in the mounting mount 35, and the terminal board 80 is widely open to the outside at these notches 35A, 35A. This open portion can be effectively used as a wiring work space. Therefore, the workability at the time of wiring connection work is improved, and the possibility of disconnection of the connection wiring due to an erroneous operation at the time of wiring work can be avoided. Next, the above-mentioned terminal board 80 has extending portions 81 and 82 for providing the wiring connecting portions 83 to 89, and has a shape that greatly bulges to both sides of the bobbins 61 and 62, These extension portions 81 and 82 may be installed in the portion where the cutout 35A of the mounting mount 35 is provided, that is, in the open portions on the left and right sides of the mounting mount 35. , 35
By providing B and making the left and right sides open,
The terminal board 80 is also configured to be easily installed. Further, since the terminal board 80 itself has a shape that can be easily mounted on the mounting mount 35, it is not necessary to separately provide the terminal board 80 on the load beam side, which contributes to downsizing and weight reduction.

[0023]

As described above, according to the present invention, a terminal block is provided on a bobbin for winding of a magnetic head section of a magnetic head slider having a magnetic head section, and a lead terminal section is formed on the terminal block. The magnetic head slider is supported since the windings are drawn out to the extraction terminal portion and the connection wiring is arranged at the wiring connection portion of the terminal board and electrically connected to the extraction terminal portion of the terminal block. Without using the relay board conventionally provided on the flexure, soldering the wiring at the wiring connection portion of the terminal board and the wiring of the drawn-out terminal portion of the bobbin without positioning each wiring one by one. The necessary wiring connection to the magnetic head can be performed by the connection by the joining means. Therefore,
Wiring connection work can be performed reliably by facilitating the wiring connection positioning work.

Next, the low-capacity magnetic head section and the high-capacity magnetic head section are divided into reading and erasing cores, and lead terminals of the terminal block provided on the bobbin even if the number of lead wires to be wired is increased. It is possible to easily cope with a large number of wiring connections by appropriately adjusting the number of parts and adjusting the number of wiring connection parts of the terminal board to correspond to this.

Further, a magnetic head core portion made of a bar member is provided so as to be supported by the gimbal member, and the bar member of the magnetic head core portion is projected to the back side of the gimbal member and these are connected by a back bar to form a magnetic gap. The magnetic circuit can be configured on the back side of the gimbal member, a terminal block is provided using a bobbin for coil formation provided on a bar member on the back side of the gimbal member, and a lead terminal portion provided on this terminal block is used. This makes it possible to easily connect the coil winding and the surrounding wiring to the connection wiring.

Further, by providing a notch in the mounting mount for supporting the magnetic head, the terminal board can be fitted in the mounting mount and can be mounted well.
This contributes to downsizing and weight reduction of the mounting mount. In addition, since the notch of the mounting mount can be used as an operation space for connection wiring, the operation space of the wiring connection portion is widened, workability at the time of wiring is improved, and disconnection due to erroneous operation at the time of wiring work is prevented. Accidents can be prevented. Furthermore, if a structure is adopted in which the wiring connection part of the terminal board and the lead-out terminal part of the bobbin can be arranged close to each other, the wiring connection part of the terminal board placed close to the lead-out terminal part of the bobbin is connected by soldering or the like. Since the connection can be easily performed by the means, the accuracy of the wiring connection work is increased, the efficiency of the wiring work is improved, and the disconnection accident can be suppressed. Furthermore, by wiring the wiring circuit connected to the coil of the erasing core from the substrate extending portion on the erasing bobbin side to the extending portion on the reading bobbin side via the main body portion of the terminal board, the main body portion is used for wiring. By effectively utilizing, the wiring of the low-capacity side coil and the wiring of the high-capacity side coil can be divided and wired into one extending portion on the erasing bobbin side and the other extending portion on the reading bobbin side, Workability during wiring work during manufacturing can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a magnetic head device according to the present invention as viewed from above.

FIG. 2 is a perspective view of the first embodiment of the magnetic head device according to the present invention as viewed from the lower surface side.

FIG. 3 is an enlarged view of a gimbal suspension and a magnetic head part according to the first embodiment.

FIG. 4 is a plan view of a high-capacity magnetic head unit provided in the magnetic head device according to the first embodiment;

FIG. 5 is a side view of a high-capacity magnetic head provided in the magnetic head device according to the first embodiment;

FIG. 6 is an exemplary plan view of a low-capacity magnetic head provided in the magnetic head device according to the first embodiment;

FIG. 6 is a side view of a low-capacity magnetic head provided in the magnetic head device according to the first embodiment;

FIG. 8 is a side view showing the magnetic core of the first embodiment.

FIG. 9 is a side view showing a magnetic core and a coil portion of the first embodiment.

FIG. 10 shows a connection portion between the winding bobbin and the wiring provided in the first embodiment, and FIG.
10B is a plan view, FIG. 10B is a perspective view showing an installation state of the terminal board with respect to the bobbin, and FIG. 10C is a cross-sectional view showing a soldering state of the lead terminal portion and the terminal board.

FIG. 11 is a perspective view of an example of a magnetic head device having a conventional structure as viewed from a lower surface side.

FIG. 12 is an exemplary perspective view of an example of the magnetic head device as viewed from above;

FIG. 13 is an enlarged view showing a gimbal suspension portion and a magnetic head core of an example of the magnetic head device.

FIG. 14 is a side view showing a magnetic core and a coil portion of the magnetic head device.

[Explanation of symbols]

G1, G2: magnetic gap; H3: high-capacity magnetic head core; H4: low-capacity magnetic head core;
・ Magnetic head unit, 32 ... Load beam, 35 ...
Mounting mount, 35A: Notch, 36: Gimbal member, 37: Magnetic head slider, 57, 58, 59 ...
Bar member, 60 ... back bar, 61, 62 ... bobbin,
K: coil, 65: flange plate, 66, 70: terminal block, 6
8A, 68B, 68C, 71A, 71B, 71C: lead-out terminal part, 80: terminal board, 83, 84, 8
5, 86, 87, 88, 89... Wiring connection portion.

Claims (7)

[Claims] A magnetic head having a bobbin mounted on the magnetic head core and a coil wound around the bobbin; A unit is configured to be attached to a gimbal member, a terminal block is extended on a flange plate of the bobbin, and a lead terminal portion for connecting a winding end wound around the magnetic head core portion is formed on the terminal block. And a terminal board having a plurality of wiring connection portions and having connection wiring connected to each wiring connection portion, the terminal board being provided in the magnetic head unit by electrically connecting the wiring connection portion to the lead-out terminal portion. A magnetic head device characterized by the above-mentioned. 2. The magnetic head slider is provided with a low-capacity magnetic head core and a high-capacity magnetic head core, and the low-capacity magnetic head core is provided with a reading core and an erasing core. 2. The magnetic head device according to claim 1, wherein a bobbin is provided on the reading core, and a bobbin is provided on the erasing core, and a lead terminal portion is formed on each bobbin. 3. A bar member made of a magnetic material is provided on each of a reading core and an erasing core of the low-capacity magnetic head core unit via a magnetic gap, and these bar members penetrate the gimbal member. 3. The magnetic head device according to claim 2, wherein a magnetic circuit is formed by projecting to a back surface side of the gimbal member, and a back bar is attached to a tip side of the bar member, and the bar member and the back bar constitute the magnetic circuit. 4. A notch for thinning a peripheral portion of the mounting mount around a portion of the mounting mount supported by the load beam, the magnetic head core portion being supported by a mounting mount, the mounting mount being supported by a load beam. The magnetic head device according to any one of claims 1 to 3, wherein the magnetic head device is formed. 5. The terminal board according to claim 4, wherein the terminal board is exposed on one surface side of the mounting mount through a cutout portion of the mounting mount, and a lead wire is wired through the exposed portion. Magnetic head device. 6. A wiring connection portion is formed in a peripheral portion of the terminal board, a lead-out terminal portion of the bobbin is installed near a peripheral portion of the terminal board, and a wiring connection portion in a peripheral portion of the terminal board is provided. 6. The magnetic head device according to claim 1, wherein the lead terminal portion is soldered. 7. A wiring circuit connected to a coil of an erasing core is arranged from a substrate extending portion on an erasing bobbin side to a substrate extending portion on a reading bobbin side via a main body of the terminal substrate. 3. The magnetic head device according to claim 2, wherein: