KR20010024012A - Hard disk drive head tray - Google Patents

Abstract

The present invention relates to a tray for storing and carrying a plurality of HDD heads. The tray 10 according to the present invention has a minute projection provided at a position corresponding to a position where a plurality of HDD heads 30 are set on the surfaces of the positioning portions 12 and 15. As an example of the micro projections, the hemispherical projections 20 having a height (a few hundred micrometers) slightly larger than the thickness of the wiring 34 can be given. Another example is a linear ridge 21 having a width of several hundred micrometers and a few millimeters in length. According to this configuration, since the wiring surface of the HDD head 30 is in contact with the positioning portions 12 and 15 of the tray 10 only in the micro projections 20 and 21, the friction therebetween becomes sufficiently small. . Thus, the problem of damage or disconnection of the wiring 34 due to friction can be reliably prevented.

Description

Hard disk drive head tray {Hard disk drive head tray}

The HDD head is a thin plate-shaped precision part of about several centimeters in length, and is composed of a magnetic head (reading and writing), a fixing part and a suspension arm. The suspension arm connects the read-write head and the fixing portion, and fine wiring is provided on the surface thereof. As described above, since the HDD head is precise and brittle, rough handling causes problems such as damage or contamination of wiring. For this reason, for example, at the manufacturing site of an HDD head, the HDD head is stored in a dedicated tray (hereinafter simply referred to as a tray) capable of collectively storing a plurality of HDD heads, and in this state, necessary processing such as cleaning is performed. . After such processing, a plurality of trays holding HDD heads are stacked and vacuum-packed to avoid adhesion of dust and the like. The tray thus stacked is hereinafter referred to as tray assembly.

The tray vibrates when vacuuming the tray assembly or when transporting the vacuum packed tray assembly. When this vibration occurs, the wiring surface of the HDD head may match the inner surface of the tray, and the wiring may be damaged or cut off. In order to solve such a problem, an object of the present invention is to provide a tray in which the damage of the HDD head due to such friction does not occur.

The present invention relates to a tray used for carrying a head (hereinafter referred to as an HDD head) used for a hard disk drive (HDD).

1 is a perspective view of a tray which is an embodiment of the present invention;

2 is a plan view of the tray,

3 is a left side view of the tray;

4 is a front view of the tray,

5 is a bottom view of the tray,

6 is a cross-sectional view taken along the line VI-VI of FIG. 2;

7 is a cross-sectional view taken along the line VII-VII of FIG. 2;

8 is an enlarged view of a portion A of FIG. 2;

9 is a view of the portion A of FIG. 2 seen from the right side;

10 is an enlarged view showing a modification of the portion A of FIG. 2;

FIG. 11 is a view of the right side of FIG. 2A from FIG.

12 is a view showing a preferred form of the linear projection, an enlarged view showing a portion corresponding to part A of FIG.

13 is a view showing a preferred form of the linear projection, a view of the portion A of Figure 2 from the right side;

14 is a plan view showing another form of the positioning unit;

15 is a perspective view illustrating a tray set including a plurality of trays of FIG. 1;

16 is a front view of the tray set of FIG. 15;

17 is a plan view of a tray that is another embodiment of the present invention;

18 is a cross-sectional view taken along the line B-B in FIG. 17.

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a tray for holding a plurality of hard disk drive heads having a wiring surface, except that each tray has a plurality of positioning parts for holding one hard disk drive head. Provided is a tray characterized in that micro projections are provided on a surface of a portion in contact with a wiring surface of a hard disk drive head.

The tray according to the present invention is provided with minute projections on the surface of the positioning portion for positioning the plurality of HDD heads in contact with the wiring surface of each HDD head. Examples of the size and shape of the microprotrusions include hemispherical protrusions having a diameter of several hundred micrometers (µm), linear hulls of several hundred micrometers in width, and several millimeters (mm) in length. Can be mentioned. In the case where the micro-projections are made of linear ridges, the longitudinal direction thereof is preferably coincident with the longitudinal direction of the positioned HDD head. The micro projections are preferably provided at positions (and directions) in contact with the wiring surface in an empty area in which no wiring is provided in the wiring surface of the HDD head.

According to the tray according to the present invention as described above, since the wiring surface of the HDD head makes contact only with the positioning portions of the tray, the friction between the wiring surface of the HDD head and the positioning portions of the tray is sufficiently small. Therefore, the problem of damage or disconnection of the wiring due to friction can be reliably prevented.

Embodiments of the tray according to the present invention will be described below with reference to the drawings.

1 to 5 is a view showing a tray of an embodiment of the present invention, Figure 1 is a perspective view, Figure 2 is a plan view, Figure 3 is a left side view, Figure 4 is a front view, Figure 5 is a bottom view. In addition, although not shown, the right side view of the tray 10 appears symmetrically with the left side view, and the rear view of the tray 10 appears symmetrically with the front view.

1 to 5, the tray 10 includes a pair of plate portions 12 and a plurality of positioning protrusions, each of which has a plurality of positioning pins (hereinafter referred to as pins) 11 arranged in a row on an upper surface thereof. 13 and 14, a pair of bars 15 arranged in a line on the upper surface, a plurality of cross beams 16 supporting orthogonal to the plate portion 12 and the bars 15, and a plate It is mainly composed of a frame 17 holding the part 12, the bar 15, and the horizontal beam 16. Among them, the pin 11 provided on the plate 12 and the projections 13 and 14 provided on the bar 15 constitute the positioning unit according to the present invention, whereby the HDD head is positioned. The HDD head 30 accommodated in the tray 10 includes a fixing part 31 having a screw hole 32 for fixing the HDD head 30 to the hard disk with screws, a suspension arm 33, and a suspension arm ( 33 has a magnetic head attached to the tip. If the HDD head 30 is placed in the tray 10 so that the arm 33 is positioned between the protrusion 13 and the protrusion 14 adjacent to the screw hole 32 via the pin 11, the HDD head 30 The position of is determined. As can be seen in Figure 1, each plate 12 is provided with twelve pins 11 and the entire tray 10 can accommodate 24 HDD heads 30.

The structure of the tray 10 holding the HDD head 30 will be described below.

6 and 7, cylindrical sleeves 18 are arranged in a row on the rear surface of the plate portion 12. Here, each sleeve 18 is located at the back of each pin 11. The sleeve 18 cooperates with the pin 11 to hold the HDD head 30 as follows. First, as described above with reference to FIGS. 1 to 5, the HDD head 30 is disposed in the tray 10A. At this time, the wiring surface of the HDD head 30 faces downward. Thereafter, the second tray 10B is stacked on the first tray 10A. In such an overlapping state, the tip of the pin 11 of the first tray 10A enters the hole of the sleeve 18 of the second tray 10B, and the sleeve 18 of the second tray 10B is inserted. There is a slight gap between the tip of the and the upper surface of the plate portion 12 of the first tray 10A. In this way, the fixing portion 31 of the HDD head 30 is loosely held up and down by the plate portion 12 of the first tray 10A and the sleeve 18 of the second tray 10B so that the HDD head 30 Will not fall out.

8 is an enlarged view of the portion A of FIG. 2, and FIG. 9 is a view of the portion A of FIG. 2 viewed from the right side. 8 and 9, the hemispherical micro-projections 20 are formed on the upper surface of the bar 15 between the projections 13 and the projections 14. The diameter (or height) of the minute protrusions 20 is slightly larger than the thickness of the wiring 34 fixed to the arm 33 of the HDD head 30 (for example, about several hundred micrometers). The fine protrusions 20 are in contact with the arm 33 in the blank area of the surface of the arm 33 of the HDD head 30 where the wire 34 does not pass. Therefore, as shown in FIG. 9, when the HDD head 30 is held in the tray 10, a gap occurs between the arm 33 and the upper surface of the bar 15. Therefore, even when the tray 10 is vibrated when the air for vacuuming the tray 10 is removed or when the tray 10 is vacuum-packed, the wiring 34 remains on the upper surface of the bar 15 or the tray 10. It is not in contact with any other part of.

In addition, the shape of the microprotrusion provided in the bar 15 is not limited to hemispherical shape. For example, FIG. 10 and FIG. 11 show another example of the micro projections, of which FIG. 10 is an enlarged view showing a modification of the portion A of FIG. 2, and FIG. 11 is a view of the portion A of FIG. . In this example, the linear ridge 21 is formed on the upper surface of the bar 15. The linear ridge 21 is formed to extend along the arm 33 of the HDD head 30 disposed in the tray 10 as described above. The height of the linear ridge 21 is slightly larger than the thickness of the wiring 34. In this manner, the same effects as in the case of the microprotrusions 20 can be obtained.

12 and 13 are views showing a preferred form of the linear ridge, wherein FIG. 12 is an enlarged view showing a portion corresponding to portion A of FIG. 2, and FIG. 13 is a view of portion A of FIG. 2 seen from the right side. In the bar 15 of this form, the linear ridges 21a and 21b formed on both sides of the projection 14 are formed to extend in a symmetrical direction. In this way, in the blank area where the wiring 34 is not provided, the arm 33 of the HDD head 30 is placed on either side of the projection 14 so that the linearly raised bumps 21a and 21b are arm 33. Because of the contact with, the degree of freedom of positioning of the HDD head 30 is increased.

In the above example, the HDD head 30 is arranged in the tray 10 so that the arm 33 crosses the bar 15 at an angle, but this is not a requirement in the present invention. For example, FIG. 14 is a plan view showing another form of the positioning unit, but in this form, the linearly ridge 22 parallel to the horizontal beam 16 is disposed between the protrusions 13 and the protrusions 14 of the bar 15. Formed. Since the pin 11 is located on an extension line of the linear ridge 22, the HDD head 30 is perpendicular to the bar 15. In this manner, the same effects as described above can be obtained.

FIG. 15 is a perspective view showing a tray assembly 40 including a plurality of trays (shown in FIG. 1) having six HDD heads (not shown) (six pieces in this example). These trays 10 are stacked, and a pair of clamps 41 and 42 hold both sides thereof. The upper cover 43 and the lower cover 44 are attached to the upper and lower surfaces of the stacked trays, respectively. Such a tray assembly is assembled for the convenience of handling wheat conveyance.

In the tray assembly 40, the upper cover 43 and the lower cover 44 have the same dimensions and shapes, and the upper cover 43 or the lower cover (depending on where the upper or lower surface of the case is mounted). It is divided into 44). The number of trays included in one tray assembly is determined by the dimensions of the clamps 41 and 42. Therefore, if you use different dimensions of clamps, the number of trays included in one tray assembly can be arbitrarily changed.

FIG. 16 is a front view of the stacked trays (as seen from the direction of arrow XVI in FIG. 15). FIG. As can be seen in FIG. 16, when the plurality of trays 10 are stacked, a wall surface of the tray on which the frames 17 of the tray 10 are stacked is formed, and the plurality of openings 45 are formed on the front wall surface. It is formed between two adjacent trays 10. Although not shown, the opening 45 is similarly formed in the wall surface of the stacked tray back surface. By providing these openings 45, the efficiency of cleaning the HDD head held in the tray assembly 40 is increased as follows. That is, in the cleaning process using the washing water (for example, pure water), the tray assembly 40 containing the HDD head is immersed in the flow of the cleaning liquid in a state where the upper and lower covers 43 and 44 are removed. The cleaning liquid flows into the tray assembly 40 and contacts the HDD head housed therein. At this time, since the cleaning liquid flows not only from the upper and lower surfaces of the tray assembly 40 but also from the openings 45 provided in the front and rear walls, the washing water does not stay in the tray assembly 40, and the fresh washing water is always kept in the HDD head. Because of contact with, the cleaning efficiency is increased.

17 and 18 show a tray as another embodiment of the present invention, in which FIG. 17 is a plan view and FIG. 18 is a cross-sectional view taken along the line X′-X ′ of FIG. 17. 17 and 18, the same components are denoted by the same reference numerals, and the description thereof will be referred to when the components are described.

17 and 18, in the tray 10C, in addition to the plate portion 12 and the bar 15, a plurality of pairs of protrusions 23 and 24 such as the bar 15 are provided in pairs and in a row. Bar 25 is included in the positioning portion. The second bar 25 is provided for positioning and holding of the HDD head having the ring portion 35 at the rear end as in the HDD head 30a shown in the drawing. Moreover, although the expansion part 36 for printing a high precision electronic circuit is formed in the HDD head 30a shown in the figure, static electricity which is an enemy of an electronic component accumulates easily in this expansion part 36. In consideration of this problem, in the tray 10C, the end 26 is formed on the upper surface of the horizontal beam 16 by partially increasing the thickness of the horizontal beam 16 supporting the second bar 25 from below. . The end portion 26 is in contact with an extension 36 of the HDD head 30a. In this way, since the static electricity in the expansion part 36 is discharged to the tray 10C through the end part 26, the accumulation of static electricity in the expansion part 36 is reliably prevented. If the surface of the tray 10C is coated electrically, the accumulation of static electricity in the HDD head 30a is more reliably prevented. This conductive coating is not limited to the tray 10C of this embodiment, but can be preferably applied to any type of tray according to the present invention.

Further, the following proposal is made in the tray 10C for stably storing and retaining a relatively large head such as the HDD head 30a of FIG. That is, on the bottom side of the tray 10C, a rod-shaped rib 27 is provided in parallel between the plate portion 12 and the second bar 25. When the HDD head 30a is disposed at a predetermined position in the tray 10C and the other trays 10C are superimposed thereon, the ribs 27 of the upper tray 10C are rearward of the HDD head 30a in the lower tray 10C. Lightly touch the top surface. In this case, since the movement of the housed HDD head 30a is properly controlled, damage to the wiring is less likely to occur.

Claims (6)

A tray for holding a plurality of hard disk drive heads having a wiring surface, the tray having a plurality of positioning portions each holding one hard disk drive head, the wiring surface of the hard disk drive head being positioned at each positioning portion. A tray for a hard disk drive head, wherein micro projections are provided on a surface of a contact portion. 2. The hard disk drive head according to claim 1, wherein the minute projections come into contact with the wiring surface in an empty area in which no wiring is provided in the wiring surface of the hard disk drive head positioned by the positioning unit. tray. 2. The positioning device according to claim 1, wherein the positioning portion has a discharge contact portion in contact with the portion of the hard disk drive head in order to promote the discharge of the static electricity from the portion where the wiring is not easily provided in the portion where no wiring is provided. Characteristic Tray for hard disk drive heads. The tray for a hard disk drive head according to claim 1, wherein the surface of the tray is coated with a conductive material. The hard disk drive head tray according to claim 1, further comprising a frame portion for stacking a plurality of trays. The cutout portion is provided in the frame portion, and when the plurality of trays are stacked to form a structure, the cutout portion forms an opening for passing a fluid at the side of the structure. Tray for the hard disk drive head.