JP3126687U - Disk unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the amount of rotating air flowing through a ventilation path of a disk tray by taking in rotating air on the upper surface side of a disk without increasing the size, and to promote cooling of a spindle motor.
An opening 2b for guiding a rotating air generated between a disk D and a disk cover 2 is provided in the disk cover, and an air passage 8 for guiding the rotating air is provided on a disk mounting portion of the disk tray 1. A substantially C-shaped separation piece 9 is provided on the back surface side and separates the rotating air between the disk cover and the disk and the rotating air between the disk and the disk tray at the base end of the ventilation path. Rotating air passes between the disc cover and the disc, and the rotating air passes between the disc and the disc mounting portion of the disc tray through the inside of the separation piece, and the rotating air is merged in the disc tray ventilation path. The spindle motor at the center of the disc placement portion of the disc tray is cooled, and the contact portion between the disc cover and the disc tray is formed in a slope shape.
[Selection] Figure 1

Description

  The present invention relates to a disk device that cools the spindle motor by applying rotational air generated by the rotation of the disk to a spindle motor that rotates a turntable of a chucking mechanism.

  The first prior art is shown in FIGS. As shown in FIGS. 5 (a) and 5 (b), this conventional optical disk drive device includes an optical disk 114 that is rotationally driven, and an optical head device 115 that is disposed to face the surface of the optical disk 114. In an optical disk drive device in which a plate-shaped member 117 is interposed between the device 115 and the optical disk 114, an air flow path 118 that guides an air flow generated by the rotation of the optical disk 114 to the optical head device 115 is formed by the air guide member 119. ing. (For example, refer to Patent Document 1).

  In this optical disk drive device, the air guide member 119 is used to form the air flow passage 118, and the cost is high because separate parts are used, and the air passage 118 is placed in the middle of the plate-like member 117. Due to the formation, there is a problem that the casing 111 is enlarged and is not suitable for downsizing.

  A second prior art is shown in FIG. As shown in FIG. 6, this conventional disk apparatus generates a rotational air induced in the gap S between the disk D and the disk mounting portion 212 of the disk tray 201 as the disk D rotates. Is guided from the front surface side to the rear surface side of the disk mounting portion 212 by the air passage 207 provided in the rear surface of the disk mounting portion 212, and then the rear surface of the disk mounting portion 212 is turned to be oriented to the installation location of the motor 203. A groove-shaped air passage 208 having a shape in which the groove width becomes narrower toward a portion closer to the end is formed on the back surface of the disk mounting portion 212. (For example, refer to Patent Document 2).

  However, in this case, the rotating air between the rotating disk D and the disk mounting portion 212 of the disk tray 201 can be guided to the air passage 207, but the rotating air generated on the upper side of the disk D is passed through the air path 208. There was a problem that could not be guided to.

  The third prior art is shown in FIG. As shown in FIG. 7, the heat dissipation structure in this conventional disk device has a shaft portion 305 protruding from the upper surface of a clamper 304 disposed on the upper side of the turntable 303 of the loader 302 in the disk device 301. The blade body 306 is provided, corner side guide pieces 308 and 308 that are curved outward are provided at the left and right corners of the lid portion 307a of the housing 307 of the disk device 301, and the inner surface of the upper wall where the blade body 306 is located in the lid portion 307a. A pair of left and right central guide pieces 309 and 309 that are curved inward are provided, and the blade body 306 is rotated through the shaft portion 305 by the rotation of the clamper 304 that rotates integrally with the turntable 303 to generate wind, and the housing 307 The inside corner side guide pieces 308 and 308 and the center side guide pieces 309 and 309 generate a flow of wind, and the flow of wind from the heat generating components on the printed circuit board P Heat was configured to heat radiation and cooling in the housing 307. (For example, refer to Patent Document 3).

However, in this case, since the blade body 306 is provided, there is a problem that the blade body 306 becomes a separate member and the cost is increased. Further, since a space for providing the blade body 306 is required, there is a problem that the casing 307 takes a large width in the vertical direction and becomes large.
Japanese Patent Laid-Open No. 11-25667 JP 2006-40389 A JP 2002-230962 A

  The present invention has been made in view of the above-described conventional problems, and can be made compact without increasing its size, preventing an increase in cost, and rotating air on the upper surface side of a rotating disk. The purpose of the present invention is to provide a disk device that can increase the amount of rotating air flowing through the ventilation path below the disk tray and can promote cooling of the spindle motor that rotates the turntable. Yes.

  The present invention has been proposed in order to solve the above problems, and the device according to claim 1 is configured such that a disk cover is placed on an upper part of a disk tray on which a disk is placed. A disk placed on the disk mounting portion of the tray and carried into the set position is held at a position where it is lifted from the disk tray by a chucking mechanism connected to a rotating shaft of a spindle motor. The recording surface of the disk rotated together with the king mechanism is scanned by an optical pickup, and the chucking mechanism is directly connected to the rotating shaft of the motor. The turntable is movable up and down, and the disk is moved upward by the turntable. Is provided at the bottom of the disc cover so as to be clamped with the turntable A disc device having an opening that is positioned in the center of the disc mounting portion and allows the turntable to move up and down. The disc and the disc are rotated by rotation of the disc. The disk cover is provided with an opening formed so that the upper end side gradually expands in order to guide the rotating air generated in the gap between the cover to the back side of the disc tray. A ventilation path for guiding the rotating air generated between the disk tray and the disk tray is provided radially on the back surface side of the disk mounting portion of the disk tray, and the disk is provided at the beginning of the ventilation path. Separating the rotating air between the cover and the disc and the rotating air between the disc and the disc tray The separation air is provided, and the rotary air that has passed through the separation piece is merged in the ventilation path on the back side of the disk tray and merged with the spindle motor located at the center of the disk mounting portion of the disk tray. The spindle motor is cooled by a rotating wind, and the separation piece is formed in a substantially C shape, and the outside of the substantially C-shaped separation piece is disposed between the disk cover and the disk. Rotating air passes between the disc and the disc mounting portion of the disc tray, and the rotating air passes through the ventilation path on the back side of the disc tray. Further, the contact portion of the disc cover and the disc tray is formed in a slope shape corresponding to each other, and the disc cover and the disc are It is characterized by a structure that prevents the rotating wind from leaking outside.

  The invention according to claim 2 is configured such that a disk cover is placed on an upper part of a disk tray on which a disk is placed, and the disk placed on the disk placement portion of the disk tray and carried into the set position is provided. The recording surface of the disc held by the chucking mechanism connected to the rotating shaft of the spindle motor is lifted from the disc tray and rotated together with the chucking mechanism by the spindle motor is scanned by the optical pickup, and the chucking is performed. A king mechanism is connected to the rotary shaft of the spindle motor and is movable up and down, and the turn table is moved upward to hold the disc between the turntable and the lower portion of the disc cover. And a clamper provided on the disc tray. In the disk apparatus in which an opening that allows the turntable to move up and down is formed in the center of the disk mounting portion, the disk cover has a rotating airflow between the disk cover and the disk generated by the rotation of the disk. An opening for guiding the disk is formed, and a rotating wind generated between the disk cover and the disk and a rotating wind generated between the disk and the disk mounting portion of the disk tray are formed on the back side of the disk tray. An air passage for cooling the spindle motor is formed radially on the spindle motor located in the central opening of the disc placement portion of the tray, and at the start end of the air passage, the disc cover and the disc Between the disk and the disk mounting portion of the disk tray. Separating strip for passing away is characterized by being provided.

  According to a third aspect of the present invention, in the device according to the second aspect of the present invention, the air flow between the disk and the disk mounting portion of the disk tray is applied to the disk tray at the start end of the ventilation path. A guide opening for guiding to the road is formed.

  According to a fourth aspect of the present invention, there is provided the device according to the second or third aspect, wherein the lower surface of the disk tray is in contact with an upper surface of a tray receiving portion disposed at a lower position of the disk tray, When the tray is inserted into the set position, a small protrusion is formed to slightly move the disc tray upward so that the upper end of the disc tray and the lower end of the disc cover come into contact with each other so that no gap is generated. ing.

  According to the first aspect of the present invention, the rotational air between the disk cover and the disk due to the rotation of the disk is substantially C-shaped in the opening provided on the disk cover and formed so that the upper end side gradually expands. It is guided to the outside of the separation piece and guided to a ventilation path provided radially on the back side of the disc tray, and the rotating air between the disc and the disc tray passes through the inside of the substantially C-shaped separation piece. Thus, the spindle motor can be efficiently cooled by the spindle motor that is guided to the ventilation path and is located at the center of the disk mounting portion of the disk tray. Furthermore, the amount of the rotating air flowing through this ventilation path is increased, and the spindle motor can be cooled more efficiently. Further, since the upper rotating wind and the lower rotating wind are separated by the substantially C-shaped separation piece, the upper rotating wind of the disk and the lower rotating wind of the disk do not collide toward the ventilation path. It can be made to flow smoothly. Further, since the contact portion between the disc cover and the disc tray is formed in a corresponding slope shape, the rotating air between the disc cover and the disc can be efficiently guided to the ventilation path without leaking to the outside. Moreover, since the substantially C-shaped separation piece is provided, a separate member is not used, and a reduction in size and cost can be achieved.

  According to the second aspect of the present invention, the rotation air between the disk cover and the disk due to the rotation of the disk is guided from the opening to the ventilation path on the back surface side of the disk tray through the outside of the separation piece. Rotating wind between the tray and the disk placement section is guided to the ventilation path through the inside of the separation piece and applied to the spindle motor located at the center of the disk placement section of the disk tray from the front end of the ventilation path. It can be cooled efficiently. Further, the amount of the rotating air flowing through the ventilation path can be increased, and the spindle motor can be cooled more efficiently. Moreover, since the separation piece is provided, a separate member is not used, and a reduction in size and cost can be achieved. Further, the separation piece can smoothly flow toward the ventilation path without collision between the rotating air on the upper side of the disk and the rotating air on the lower side of the disk.

  According to the third aspect of the present invention, since the guide opening is formed in the disc tray, the rotating wind between the disc and the disc mounting portion of the disc tray is directed toward the ventilation path from the guide opening. Can be taken in smoothly.

  According to the fourth aspect of the present invention, when the disc tray is inserted, the small protrusion formed on the disc tray comes into contact with the upper surface of the tray receiving portion so that there is no gap between the upper end of the disc tray and the lower end of the disc cover. The rotating air between the disc cover and the disc can be prevented from leaking to the outside, and this rotating air can be guided to the air passage without any problem, increasing the cooling effect of the spindle motor be able to.

  Hereinafter, embodiments of a disk device according to the present invention will be described with reference to the drawings.

  FIG. 1 is a longitudinal sectional view showing a disk device according to a first embodiment of the present invention, FIG. 2 is an enlarged perspective view showing a main part of the device, and FIG. 3 is a ventilation in a state where a disk tray is covered on the disk tray of the device. It is a schematic plan view which shows the flow of the rotation wind in a path.

  As shown in FIG. 1, the disk device of the first embodiment is configured such that a disk cover 2 is placed on top of a disk tray 1 on which a disk D is placed. Slope-shaped portions 1a and 2a corresponding to each other are formed in the contact portion. A chucking mechanism 3 for holding the disk D is provided at the disk mounting portion of the disk tray 1. The chucking mechanism 3 includes a turntable 6 provided at the upper end of the rotating shaft 5a of the spindle motor 5 on the movable frame 4 that is moved up and down, and a clamper 7 provided at the lower part of the disc cover 2. When the disk 6 is moved upward, the disk D is chucked by the turntable 6 and the clamper 7. In this state, the disk D is chucked with the disk D slightly lifted from the disk mounting portion of the disk tray 1.

  An opening 1b is formed at the center of the disk mounting portion of the disk tray 1, and the upper portion of the spindle motor 5 is positioned in the opening 1b. As shown in FIG. 2, the disk cover 2 is formed with an opening 2 b into which a rotating air generated by the rotation of the disk D is introduced. As shown also in FIG. 3, the disk tray 1 is provided with a ventilation path 8 that guides the rotating air generated by the rotation of the disk D to the back side of the disk tray 1. The ventilation path 8 is formed such that its width gradually decreases as it becomes the center of the disk mounting portion of the disk tray 1. A guide port 1 c for guiding the rotational air between the disk D and the disk tray 1 is provided in the disk tray 1, and the opening 2 b of the disk cover 2 is communicated with the ventilation path 8 of the disk tray 1. A substantially C-shaped separation piece 9 is provided at the base end of the ventilation path 8 for separating the rotating air between the disk cover 2 and the disk D and the rotating air between the disk tray 1 and the disk D.

  The rotating air introduced from the opening 2b of the disc cover 2 passes through the outside of the separating piece 9, and the rotating air introduced from the guide port 1c of the disc tray 1 passes through the inside of the separating piece 9 and is a ventilation path. 8, the spindle motor 5 is cooled by the spindle motor 5 at the end of the ventilation path 8.

  Therefore, according to the first embodiment, the rotational wind between the disk cover 2 and the disk D due to the rotation of the disk D is provided in the opening 2b provided in the disk cover 2 and formed so that the upper end side gradually becomes wider. Is guided to the outside of the substantially C-shaped separation piece 9 and is guided to the ventilation path 8 provided radially on the back side of the disc tray 1, and the rotational wind between the disc D and the disc tray 1 is substantially The spindle motor 5 can be efficiently cooled by the spindle motor 5 that passes through the inside of the C-shaped separation piece 9 and is guided to the ventilation path 8 and positioned at the center of the disk mounting portion of the disk tray 1. . Further, the amount of the rotating air flowing through the ventilation path 8 is increased, and the spindle motor 5 can be cooled more efficiently. Further, since the upper rotating wind and the lower rotating wind are separated by the substantially C-shaped separation piece 9, the upper rotating wind of the disk D and the lower rotating wind of the disk D do not collide with each other. It can be made to flow smoothly toward 8.

  Further, since the contact portions of the disc cover 2 and the disc tray 1 are formed in the corresponding slope-shaped portions 1a and 2a, the air flow between the disc cover 2 and the disc D is efficiently leaked without leaking outside. Can be guided to. Moreover, since the substantially C-shaped separation piece 9 is provided, a separate member is not used, and compactness and cost reduction can be achieved. Further, since the width of the ventilation path 8 is gradually narrowed as it becomes the center of the disk mounting portion of the disk tray 1, the wind speed increases as it approaches the end of the ventilation path 8, and the rotation of this fast wind speed is increased. Since the wind hits the spindle motor 5, the spindle motor 5 can be cooled more efficiently.

  FIG. 3 is a partial longitudinal sectional view showing the disk device of the second embodiment. Note that the same members and the same portions as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  In the second embodiment, as shown in FIG. 4, the disc tray 1 is inserted into the set position by contacting the lower surface of the disc tray 1 with the upper surface of the tray receiving portion 10 disposed below the disc tray 1. In this case, a small protrusion 11 is formed for slightly moving the disc tray 1 upward. Therefore, according to the second embodiment, when the disc tray 1 is inserted, the small protrusions 11 formed on the disc tray 1 come into contact with the upper surface of the tray receiving portion 10, so that the upper end of the disc tray 1 and the lower end of the disc cover 2 are Can be prevented so that there is no gap between them, and the rotating air between the disc cover 2 and the disc D can be prevented from leaking to the outside. The cooling effect of the spindle motor 5 can be enhanced.

1 is a longitudinal sectional view showing a disk device according to a first embodiment of the present invention. It is an expansion perspective view which shows the principal part of the same apparatus. It is a schematic plan view which shows the flow of the rotation wind in a ventilation path in the state which covered the disk cover on the disk tray of the same apparatus. It is a fragmentary longitudinal cross-section which shows the disc apparatus of 2nd Embodiment. A conventional optical disk drive is shown, (a) is a partial plan view thereof, and (b) is a partial longitudinal sectional view thereof. It is a longitudinal cross-sectional view of a conventional disk device. It is a longitudinal cross-sectional view which shows the thermal radiation structure in the conventional disc apparatus.

Explanation of symbols

D Disc 1 Disc tray 1a Slope shape portion 1b Opening 1c Guide port 2 Disc cover 2a Slope shape portion 2b Opening portion 3 Chucking mechanism 4 Movable frame 5 Spindle motor 5a Rotating shaft 6 Clamper 8 Ventilation path 9 Substantially C-shaped Separation piece 10 Tray receiving part 11 Small protrusion

Claims (4)

  The disc cover is placed on the upper portion of the disc tray on which the disc is placed, and the disc placed on the disc placement portion of the disc tray and carried into the set position is connected to the rotating shaft of the spindle motor. The recording surface of the disk held by the chucking mechanism at a position lifted from the disk tray and rotated together with the chucking mechanism by the spindle motor is scanned by an optical pickup, and the chucking mechanism is rotated by the spindle motor. A turntable that is directly connected to the turntable, and a clamper provided at a lower portion of the disc cover for sandwiching the disc with the turntable by moving the turntable upward, In the center of the disc placement section on the disc tray In the disk device in which an opening that allows the turntable to be moved up and down is formed, rotating air generated in a gap between the disk and the disk cover due to rotation of the disk is generated on the back side of the disk tray. The disk cover is provided with an opening formed so that the upper end side gradually expands for guiding, and the rotating air generated between the disk and the disk tray is guided to the back side of the disk tray. A ventilation path is provided radially on the back surface side of the disk mounting portion of the disk tray, and at the start end of the ventilation path, there is a rotation air between the disk cover and the disk and between the disk and the disk tray. A separating piece for separating the rotating air is provided, and the rotating air that has passed through the separating piece is behind the disc tray. The spindle motor is cooled by the rotating air that is merged in the ventilation path on the side and merged with the spindle motor positioned at the center of the disk mounting portion of the disk tray, and the separating piece is The rotary air between the disc cover and the disc passes outside the substantially C-shaped separation piece, and the disc and the disc tray are inside the separation piece. The rotating wind passes between the disk mounting portion and the rotating wind is merged in the ventilation path on the back side of the disk tray, and the disk cover and the disk tray are in contact with each other. The portions are formed in slope shapes corresponding to each other, and have a structure that prevents the rotating air between the disc cover and the disc from leaking to the outside. Equipment.   The disc cover is placed on the upper portion of the disc tray on which the disc is placed, and the disc placed on the disc placement portion of the disc tray and carried into the set position is connected to the rotating shaft of the spindle motor. The recording surface of the disk held by the chucking mechanism at a position lifted from the disk tray and rotated together with the chucking mechanism by the spindle motor is scanned by an optical pickup, and the chucking mechanism is rotated by the spindle motor. A turntable that is directly connected to the turntable, and a clamper provided at a lower portion of the disc cover for sandwiching the disc with the turntable by moving the turntable upward, In the center of the disc placement section on the disc tray In the disk device in which an opening that allows the turntable to be moved up and down is formed, the disk cover is formed with an opening that guides the rotating air between the disk cover and the disk generated by the rotation of the disk. In addition, on the back surface side of the disc tray, the rotating air generated between the disc cover and the disc and the rotating air generated between the disc and the disc mounting portion of the disc tray are subjected to the disc mounting portion of the disc tray. An air passage that cools the spindle motor is formed in a radial manner against the spindle motor located in the central opening of the disc, and the rotating air between the disc cover and the disc and the disc are formed at the start end of the air passage. For separating and passing the rotating air between the disk tray and the disk mounting portion of the disk tray Disk apparatus characterized by Hanarehen is provided.   3. The guide hole for guiding the rotating air between the disk and a disk mounting portion of the disk tray to the ventilation path is formed in the disk tray at a start end of the ventilation path. Disk unit.   The lower surface of the disc tray is in contact with the upper surface of a tray receiving portion disposed below the disc tray, and when the disc tray is inserted into the set position, the disc tray is slightly moved upward. 4. The disk apparatus according to claim 2, wherein a small protrusion is formed for contacting the upper end of the disk tray and the lower end of the disk cover so that no gap is generated.