JP2005322277A - Optical disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk device for sufficiently cooling even in an extremely thin optical disk device and for reducing deterioration in recording/reproducing characteristics. <P>SOLUTION: An opening 3f is provided at outside 3e of an optical disk fitting region at the side of a bezel 8 so that it faces an opening 3c in a tray 3, and an optical pickup module 4 is mounted to the tray 3 via the opening 3c. In the extremely thin optical disk device, a cover 6b at a part opposite to a spindle motor 5 in a cover 6 of the optical pickup module 4 is higher than other parts and an opening 6c is also provided at the region of the cover 6b. When the optical pickup module 4 is mounted to the tray 3, an opening 6c is positioned at the lower side of the outside 3e of an optical disk fitting region, and an opening 3f is positioned in the opening 6c. A wall for introducing an air flow is formed so that it is positioned in the opening 6c. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an optical disk device mounted on an electronic device such as a personal computer or a notebook computer.

  As optical disk devices, CD-ROM, CD-R / RW, DVD, and the like have already been put into practical use, and application to various areas and development for high performance are being actively carried out. Particularly recently, with the rapid market expansion of personal computers, the penetration rate of built-in optical disk devices in personal computers has increased.

  A perspective view of a conventional optical disc apparatus is shown in FIG.

  In FIG. 10, the optical disc apparatus 1 includes a housing 2 and a tray 3 that is held in the housing 2 so as to be able to appear and retract. The housing 2 is formed in a bag shape by combining metal housing portions 2 a and 2 b, and the tray 3 is projected and retracted from the opening of the housing 2.

  An optical pickup module 4 is attached to the tray 3 from the back side. Rails 3 a are provided on both sides of the tray 3 so as to be movable. The rails 3 a are held by rail holding portions 3 b provided integrally with the tray 3. In FIG. 10, the rail 3a is provided only on one side, but a similar rail is provided on the other side.

  The optical pickup module 4 has at least a spindle motor 5 for rotating the optical disk, a metal cover 6 provided with an opening 6a from the spindle motor 5 to the outer periphery, and a carriage 7 partially exposed from the opening 6a. . The carriage 7 is movably held by a plurality of support shafts provided in the optical pickup module 4 and can be moved toward and away from the spindle motor 5 by a feed motor (not shown). Reference numeral 8 denotes a bezel provided on the front surface of the tray 3, and the bezel 8 is configured to have a size enough to block the opening of the housing 2. The carriage 7 includes a light source such as a high-power laser diode, various optical members, and an objective lens that forms a light spot on the optical disk.

  In recent years, in particular, a thin optical disk device has been demanded, and a case where the thickness of the central portion of the housing 2 is 9.5 mm has already been developed. The configuration is shown in FIGS.

  FIG. 11 is a perspective view of the conventional optical disc apparatus as seen from the front side with the optical pickup module 4 attached to the tray 3, and FIG. 12 is a perspective view of what is shown in FIG. FIG. 13 is also a perspective view of what is shown in FIG. FIG. 14 is a perspective view of the one shown in FIG. 11 turned over and viewed from the bottom side, and FIG. 15 is a perspective view of the state shown in FIG. 14 in an exploded state.

  When recording on an optical disk, a high output light source, an IC for driving the light source, and the like are required. As a result, the heat generation of the light source and the IC is enormous and the recording / reproducing characteristics are affected. In particular, in a thin optical disk apparatus in which the thickness of the central portion of the housing 2 is 9.5 mm or less, the heat capacity is lowered, so that if a high-power laser is used, it will be thermally broken.

As for the method of cooling the inside of the optical disc apparatus, for example (Patent Document 1), (Patent Document 2)
It is described in.
Japanese Patent Laid-Open No. 11-25667 JP 2000-231782 A

  These describe the method of cooling by guiding the air flow generated when the optical disk is rotated to the carriage 7. However, these methods are originally such that the thickness of the central portion of the housing 2 is 9.5 mm or less. Therefore, such an ultra-thin optical disk device cannot be said to have a sufficient cooling effect.

  The inventor has already filed an application for a thin optical disk device in which means for introducing an air flow is provided in a region of the tray opposite to the optical disk mounting side to enhance the cooling effect. It was found that there is room for improvement in an extremely thin optical disk device such as 9.5 mm or less in order to obtain a cooling effect by introducing an air flow.

  In a thin optical disk device of 9.5 mm or less, the gap between the cover 6 and the carriage 7 of the optical pickup module 4 is reduced. Therefore, the cover 6 of the optical pickup module 4 has to adopt a structure different from the conventional one. This will be described below.

  The carriage 7 needs to be set perpendicular to the surface of the optical disk 9 and is maintained in this state by adjusting the tilt of the support shaft 10. The state of this tilt adjustment is shown in FIG. As shown in FIG. 16A, the pickup 11 mounted on the carriage 7 is set perpendicular to the surface of the optical disk 9. The pickup 11 moves in the radial direction of the optical disc 9 along the support shaft 10, but needs to be perpendicular to the surface of the optical disc 9 at any position. However, due to variations in component dimensions and assembly, the required verticality cannot be ensured simply by assembling. Therefore, the support shaft 10 can adjust the support height at both ends, and the tilt adjustment as shown in FIG. 16B is performed so as to be perpendicular to the surface of the optical disc 9 (FIG. 16). 16 (b) shows a state where the outer peripheral side is lifted along with the disk 9). As a result of this adjustment, the carriage 7 moves up and down as it goes outward, so that the outer side of the cover 6 of the optical pickup module 4 escapes upward, so that the carriage 7 can be adjusted without contacting the cover 6. I am doing so. However, in the optical disk device in which the cover 6 of the optical pickup module 4 has such a structure, the outer surface of the tray 3 and the surface of the cover 6 are close to each other because the outside of the cover 6 escapes upward. However, it is difficult to obtain a cooling effect by effectively introducing an air flow with the conventional configuration.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described conventional problems, and to provide an optical disc apparatus capable of sufficiently cooling even an extremely thin optical disc apparatus and capable of reducing deterioration in recording / reproducing characteristics. To do.

The present invention has been made in order to solve the above-described problems, and includes a rotation driving means for rotating an optical disk, a carriage provided with at least a light source and various optical members, and a cover provided with a first opening. An optical pickup module having a second opening, a tray having a second opening, the optical pickup module being mounted so that a part of the optical pickup module is exposed from the second opening, and a housing for holding the tray in a retractable manner A first main surface of the tray includes an optical disk mounting area and an outside of the optical disk mounting area provided outside the optical disk mounting area, and the tray is disposed so that the outside of the optical disk mounting area and the optical pickup module face each other. A portion where the optical pickup modules are coupled to each other and which is outside the optical disk mounting area of the tray and faces the first opening When the optical pickup module is attached to the tray, the gas flow generated on the outer periphery of the optical disk through the third opening is passed through the third opening and the first opening on the side opposite to the first main surface is provided. 2 is an optical disk device characterized in that a wall as a means for guiding between the two main surfaces and the housing is provided in the second opening.

  According to the present invention, the air at a relatively low temperature on the optical disc mounting side of the tray can be effectively introduced into the region opposite to the optical disc mounting side of the tray. Therefore, it is possible to suppress problems such as deterioration of recording / reproducing characteristics due to heat.

  According to a first aspect of the present invention, there is provided a rotary drive means for rotating an optical disk, a carriage provided with at least a light source and various optical members and movably provided, an optical pickup module provided with a cover provided with a first opening, A first main surface of the tray having an opening and a tray on which the optical pickup module is mounted so that a part of the optical pickup module is exposed from the second opening; Includes an optical disk mounting area and an outside of the optical disk mounting area provided outside the optical disk mounting area, and the tray and the optical pickup module are coupled to each other so that the outside of the optical disk mounting area and the optical pickup module face each other. A third opening is provided outside the mounting area and opposed to the first opening, and light is applied to the tray. When the backup module is mounted, the gas flow generated on the outer periphery of the optical disk by rotation of the optical disk is guided through the third opening between the second main surface opposite to the first main surface and the housing. An optical disc apparatus characterized in that a wall as a means is provided so as to be positioned in the second opening.

  With this configuration, even in an extremely thin optical disc apparatus in which the gap between the cover surface of the optical pickup module and the carriage is small and the cover surface of the optical pickup module and the outer peripheral surface of the tray are close to each other, The air flow can be efficiently guided to a region where the temperature tends to be high due to the generation of heat, and the cooling effect can be enhanced.

  According to a second aspect of the present invention, in the optical disc apparatus of the first aspect, a wall is provided along an edge outside the optical disc mounting area of the tray so as to be continuous with the wall provided so as to be positioned in the first opening. It is characterized by that.

  With only the wall provided so as to be located in the first opening, a part of the air flow may leak without being guided between the second main surface and the housing. By providing a wall along the outside edge of the optical disk mounting area of the tray, it is possible to prevent leakage of the air flow and to effectively guide the air flow between the second main surface and the housing, thereby improving the cooling efficiency. Will improve. In a thin optical disk device, the rigidity of the tray tends to decrease because the thickness of the tray is thin. However, by providing this wall, the rigidity can be increased and the strength can be improved.

  According to a third aspect, in the optical disc apparatus according to the first aspect, the height of the wall is adjusted so that the wall and the carriage do not come into contact with the movement of the carriage.

In a thin optical disk device, when the carriage moves, the objective lens and the like mounted on the optical pickup module easily come into contact with the wall provided on the tray. In particular, the carriage may move upward due to tilt adjustment of the optical pickup module,
When a warped optical disc is loaded, the carriage may move upward as the objective lens tries to follow the focus direction. Further, when an impact such as a drop is applied to the optical disc apparatus, the carriage easily comes into contact with the wall. In the present invention, the carriage is prevented from being damaged by adjusting the height of the wall so that the wall and the carriage do not come into contact with the movement of the carriage.

  According to a fourth invention, in the optical disk apparatus of the first invention, the third opening is provided in communication with the optical disk mounting area.

  With this configuration, when the air at a relatively low temperature between the housing and the optical disk is guided between the housing and the tray along with the rotation of the optical disk, it can be directly guided without being scattered. Air flow introduction efficiency is good.

  According to a fifth aspect of the present invention, in the optical disc apparatus of the first aspect, the first opening is provided between the rotation driving means and the outer end of the optical pickup module, and the end of the first opening opposite to the rotation driving means. Is provided on the front end face side of the tray.

  With this configuration, when the optical disc apparatus is mounted on an electronic device or the like, the third opening can be disposed on the side close to the outside air, so that the cooling effect is high.

  According to a sixth aspect of the present invention, in the optical disc apparatus of the first aspect, the third opening is provided in the front end surface portion of the tray with respect to the rotation driving means.

  With this configuration, when the optical disc apparatus is mounted on an electronic device or the like, the third opening can be disposed on the side close to the outside air, so that the cooling effect is high.

  The seventh invention is characterized in that, in the optical disk apparatus of the first invention, the thickness of the central portion of the housing is 9.5 mm or less, and the cooling effect is particularly remarkable in such a thin optical disk apparatus.

(Embodiment 1)
Embodiments of an optical disk device according to the present invention will be described below.

  FIG. 1 is a perspective view of an optical disc apparatus according to Embodiment 1 of the present invention. FIG. 2 shows an exploded perspective view of the optical disc apparatus according to Embodiment 1 of the present invention.

  In FIG. 1, an optical disc apparatus 1 has a housing 2 and a tray 3 held in the housing 2 so as to be able to appear and retract. The housing 2 is formed in a bag shape by combining metal housing portions 2 a and 2 b, and the tray 3 is projected and retracted from the opening of the housing 2.

  The housing part 2a and the housing part 2b are firmly fixed to each other using a locking means and a spiral not shown. As the constituent material of the housing 2, a conductive material such as a metal material such as iron, iron alloy, aluminum, aluminum alloy, and magnesium alloy is preferably used. In addition, a case in which each casing portion is made of a resin material and a highly conductive metal film is formed thereon using a technique such as electrodeposition is also used. Furthermore, each of the housing part 2a and the housing part 2b may be made of the same kind of material, or may be made of different materials. In addition, the average thickness of the main plane portion of each of the housing portion 2a and the housing portion 2b is between 0.3 mm and 1.6 mm, and when the average thickness is relatively thin, the housing portion 2a and the housing portion. The body part 2b is made of a metal material, and is formed, for example, by pressing a metal plate. Further, when the average thickness is relatively large, the casing 2a and the casing 2b are made of die casting (aluminum, magnesium alloy, etc.).

  The tray 3 is composed of a resin frame and is provided with an opening 3c. Rails 3 a are provided on both sides of the tray 3 so as to be movable. The rails 3 a are held by rail holding portions 3 b provided integrally with the tray 3. In FIG. 1, the rail 3a is provided only on one side, but the same rail is provided on the other side.

  An optical disk mounting area 3d is provided in a portion of the tray 3 that faces the disk when the disk is mounted, and the outer periphery is circular according to the shape of the optical disk. An optical disk mounting area outside 3e is provided outside the optical disk mounting area 3d, and the optical disk mounting area 3d is about 1.5 mm to 4 mm (same as the thickness of the optical disk to be mounted) with respect to the optical disk mounting area outside 3e. Slightly larger extent) A depressed recess is formed.

  In the present embodiment, the tray 3 has a substantially square shape, and the optical disk having the maximum diameter to be mounted assumes a disk shape. Therefore, the optical disk mounting area 3d has a substantially circular shape as described above, and The diameter of the optical disk mounting area 3d is the same as the diameter of the largest optical disk that can be mounted, or about 1 mm to 7 mm larger. The outside 3e of the optical disk mounting area has a generally triangular shape. Further, the optical disk mounting area 3d indicates an area including a portion facing the optical disk and having a slight gap on the outer periphery when the optical disk is mounted. The optical disk mounting area outside 3e is the main surface of the optical disk. This is a region that does not face at all.

  An opening 3c is provided in the optical disc mounting area 3d, and the optical pickup module 4 is attached to the opening 3c by being inserted from the back surface.

  A spindle motor 5 is provided substantially at the center of the optical disk mounting area 3d. The optical disc mounting area 3 d is mainly formed by a part of the surface of the tray 3 and the surface of the cover 6. At least a part of the spindle motor 5 protrudes from the opening 3c, and the carriage 7 and the cover 6 are also exposed.

  The optical pickup module 4 has at least a spindle motor 5 for rotating the optical disk, a metal or resin cover 6 provided with an opening 6a from the spindle motor 5 to the outer periphery, and a carriage 7 partially exposed from the opening 6a. ing. The carriage 7 is mounted with a light source such as a high-power laser diode, various optical members, an objective lens that forms a light spot on the optical disk, and an IC that drives the light source. The carriage 7 is movably held by a plurality of support shafts (not shown) provided in the optical pickup module 4, and is moved closer to and away from the spindle motor 5 by a feed motor (not shown). Move to.

  Reference numeral 8 denotes a bezel provided on the front end surface of the tray 3, and the bezel 8 is configured to have a size enough to block the opening of the housing 2.

  In the embodiment of the present invention, an opening 3f is provided in a portion of the optical disc mounting area outside 3e on the bezel 8 side that faces the opening 6a when the optical pickup module 4 is attached. By providing the opening 3f in this way, the opening 6a is exposed also on the outside 3e of the optical disc mounting area.

Of the cover 6 of the optical pickup module 4, the cover 6 b, which is the part opposite to the spindle motor 5, is higher than the other parts. This is necessary because of the tilt adjustment described above. The opening 6a provided in the cover 6 is also provided in a region of the cover 6b formed higher than the other part, and this part of the opening 6a is referred to as an opening 6c. When the optical pickup module 4 is attached to the tray 3, the opening 6c is positioned below the outside 3e of the optical disk mounting area of the tray 3. Thus, the opening 3f is positioned in the opening 6c. Although not shown in the drawing, for the purpose of securing the strength of the cover 6, ribs may be provided in the opening 6a at right angles to the moving direction of the carriage 7, and the space between the opening 6a and the opening 6c may be separated.

  FIG. 3 is an exploded perspective view seen from the back side of FIG. In the tray 3, a wall 3g is formed along the edge of the region where the opening 3f is provided. The gas flow generated on the outer peripheral portion of the optical disk by blowing is blown into the opening 3f, and the wall 3g and the inclined surface 3k provided in the opening 3f allow the gap between the back surface of the tray 3 and the housing 2b through the opening 3f. Led to.

  In the present invention, the opening 3f is positioned in the opening 6c, and the wall 3g is formed in the opening 6c. In an extremely thin optical disc apparatus, the outer peripheral surface of the tray 3 is used. This is because the air flow generated in the outer peripheral portion of the optical disk by rotation of the optical disk cannot be introduced into the back side of the tray 3 because the surface of the cover 6 and the surface of the cover 6 are close to each other. That is, when the surface on the outer peripheral side of the tray 3 and the surface of the cover 6 are close to each other, the gap between them becomes narrow, and the air flow cannot be sufficiently secured and controlled. In the present invention, the opening 3f is positioned in the opening 6c, and the wall 3g is formed in the opening 6c so that the outer peripheral surface of the tray 3 and the surface of the cover 6 approach each other. Even in the situation, a space for forming the wall 3g and the inclined surface 3k can be secured, and the air flow is guided between the back surface of the tray 3 and the housing portion 2b through the opening 3f. Can do.

  Further, a wall 3h is provided along the edge of the outside 3e of the optical disk mounting area of the tray 3 so as to be continuous with the wall 3g. With only the wall 3g, a part of the air flow may leak without being guided between the back surface of the tray 3 and the housing portion 2b. However, the edge of the optical disk mounting area outside 3e of the tray 3 continues to the wall 3g. By providing the wall 3h along the wall, it is possible to reduce the leakage of the air flow and to effectively guide the air flow along the wall between the back surface of the tray 3 and the housing portion 2b. Cooling efficiency is improved. In a thin optical disc apparatus, the thickness of the tray 3 is thin, so that the rigidity is likely to decrease. However, by providing the wall 3h, the rigidity can be increased and the strength can be improved.

  Of the cover 6 of the optical pickup module 4, the cover 6 b, which is the part on the opposite side of the spindle motor 5, is higher than the other parts. However, when the optical pickup module 4 is attached to the tray 3, It is necessary that 6b does not contact the walls 3g and 3h. Therefore, the position where the height of the cover 6 rises is set to be on the outer peripheral side with respect to the width of the wall 3h. The wall 3g is set so as to be accommodated in the opening 6c.

  FIG. 4 shows a state where the optical pickup module 4 is attached to the tray 3 as viewed from the bottom side. As shown in FIG. 4, the opening 3 f provided in the tray 3 is located in an opening 6 c that is a part of the opening 6 a of the optical pickup module 4. Further, an inclined surface 3k is provided so that the air flow is effectively guided between the back surface of the tray 3 and the housing portion 2b through the opening 3f. FIG. 5 shows the opening 3f, the wall 3g, and the opening 6c in an enlarged manner. In this manner, in the thin optical disc apparatus in which the opening 3f is in the opening 6c and the wall 3g is in the opening 6c, the outer peripheral surface of the tray 3 and the surface of the cover 6 must approach each other. In addition, the air flow can be effectively guided between the back surface of the tray 3 and the housing portion 2b.

FIG. 6 shows a state where the optical pickup module 4 is attached to the tray 3 as viewed from the front side, and FIG. 7 shows a state where the carriage 7 has moved to the vicinity of the opening 3f. Of the outside 3e of the optical disk mounting area, the area 3i corresponding to the upper surface of the opening 3f corresponding to the upper surface of the opening 3f is formed to be higher than the other areas. This is because the opening 3f is provided on the upper side as much as possible to efficiently take in the gas flow generated in the outer peripheral portion by the rotation of the optical disk. Even if the entire optical disc mounting area outside 3e is configured with the height of the area 3i corresponding to the upper surface of the opening 3f, the air intake ability is the same. Even if the area 3i corresponding to the upper surface of the opening 3f is an opening, the tray 3 is housed in the housing during actual driving, so that the housing 2a serves as a wall on the upper surface, and an air flow is generated in the opening 3f. Flowing. Therefore, although the efficiency is somewhat reduced, a region 3i corresponding to the upper surface of the opening 3f may be an opening depending on the required level of cooling efficiency.

  Further, as shown in FIG. 7, the carriage 7 moves to the vicinity of the opening 3f. At this time, it is necessary that the carriage 7 does not contact the wall of the opening 3f. A configuration for this purpose will be described with reference to FIG.

  FIG. 8 is an exploded perspective view seen from the bottom side when the optical pickup module 4 is attached to the tray 3. The height of the wall 3 g is such that the wall 3 g and the carriage 7 come into contact with the movement of the carriage 7. It has been adjusted so that it does not. Specifically, in the region where the carriage 7 reaches, the height of the wall 3g is lowered, or a notch 3j is provided in a part thereof. On the other hand, what is shown in FIG. 9 is an example in which the wall 3g is formed without providing the notch 3j. If only the effect of introducing the air flow is taken into consideration, it is more advantageous not to provide the notch 3j as shown in FIG. 9, but in order to prevent contact with the carriage 7, as shown in FIG. In addition, it is advantageous to adjust the height of the wall 3g and provide the notch 3j. Which one to select can be appropriately determined in consideration of the thickness of the optical disk device and the cooling efficiency.

  According to the above configuration, when the optical disk is mounted and the tray 3 is stored in the housing 2, the air in the portion having a relatively low temperature between the housing portion 2a and the optical disk is effectively removed by the rotation of the optical disk. It can be led between the portion 2b and the tray 3, and the cooling effect is high.

  If the air flow path is simply configured as in the prior art, effective cooling is difficult in an optical disc apparatus having a thickness of the central portion of the housing 2 of 9.5 mm or less. According to the configuration of the embodiment, the air flow generated in the optical disc can be guided very effectively to the space between the housing 2b and the tray 3 in which most of the carriage 7 is accommodated, so that extremely high cooling performance is obtained. be able to.

  In the present embodiment, an opening 3f is provided in the outside of the optical disk mounting area 3e so as to be continuous with the optical disk mounting area 3d, and the outer peripheral part of the mounted optical disk and the opening 3f are located very close to each other. Can do. Therefore, it is possible to effectively guide the air flow.

  In the embodiment of the present invention, an opening 3f is provided between the optical disc mounting area 3d and the front end face side of the tray 3, that is, the end portion on the side where the bezel 8 is provided. Further, the opening 6a is also formed between the spindle motor 5 and the end of the tray 3 where the bezel 8 is provided, and the longitudinal direction of the opening 6a is inclined so as to be non-perpendicular to the bezel 8. Is provided. By arranging the opening 3f on the bezel side of the tray 3 as described above, the normal casing 2 portion is accommodated in an electronic device such as a personal computer, and the bezel 8 side is disposed outside the electronic device. Therefore, it becomes easy to flow in relatively cooled air or the like.

  In the present embodiment, air is used as the gas flow, but other gases may be used.

Since the optical disk apparatus of the present invention can circulate the air flow efficiently, it is possible to take measures against heat of an optical disk apparatus that is particularly thin and miniaturized, and suppresses problems such as deterioration of recording / reproducing characteristics due to heat. Can do. Therefore, the present invention can be applied to electronic devices such as personal computers and notebook computers.

The perspective view which shows the state which pulled out the tray in the optical disk apparatus in Embodiment 1 of this invention. 1 is an exploded perspective view of an optical disc apparatus according to Embodiment 1 of the present invention. The exploded perspective view seen from the back side of FIG. View of the optical pickup module attached to the tray as seen from the bottom side Figure showing enlarged opening and wall View of the optical pickup module attached to the tray as seen from the front The figure which shows the state which the carriage moved to the vicinity of opening An exploded perspective view seen from the bottom side when attaching the optical pickup module to the tray The figure which shows the example which formed the wall without providing a notch in the disassembled perspective view seen from the bottom side when attaching an optical pick-up module to a tray A perspective view of a conventional optical disc apparatus In a conventional optical disc apparatus, a perspective view of a state where an optical pickup module is attached to a tray, as viewed from the front side The perspective view which looked at what was shown in FIG. 11 changing the direction The perspective view which looked at what was shown in FIG. 11 changing the direction The perspective view which turned over what was shown in FIG. 11 and was seen from the bottom side The perspective view of the state which decomposed | disassembled what was shown in FIG. Diagram showing how to adjust the tilt

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical disk apparatus 2 Housing | casing 2a, 2b Housing | casing part 3 Tray 3a Rail 3b Rail holding | maintenance part 3c Opening 3d Optical disk mounting area | region 3e Optical disk mounting area exterior 3f Opening 3g Wall 3h Wall 3i Area | region which hits the upper surface of opening 3f 3j Notch 3k Inclination Surface 4 Optical pickup module 5 Spindle motor 6 Cover 6a Opening 6b Cover 6c Opening 7 Carriage 8 Bezel 9 Optical disk 10 Support shaft 11 Pickup

Claims (7)

Rotation driving means for rotating the optical disk, carriage provided with at least a light source and various optical members and movably provided, an optical pickup module having a cover provided with a first opening, and a second opening having the second opening A tray on which the optical pickup module is attached so that a part of the optical pickup module is exposed from the opening of 2, and a housing that holds the tray in a retractable manner, and the first main surface of the tray is An optical disk mounting area and an outside of the optical disk mounting area provided outside the optical disk mounting area are included, and the tray and the optical pickup module are coupled to each other so that the outside of the optical disk mounting area and the optical pickup module face each other. , Outside of the optical disk mounting area of the tray and facing the first opening When the optical pickup module is attached to the tray, the gas flow generated on the outer periphery of the optical disk through the third opening is opposite to the first main surface through the third opening. An optical disc apparatus characterized in that a wall as a means for guiding between the second main surface of the optical disc and the housing is provided so as to be positioned in the first opening. 2. The optical disc apparatus according to claim 1, wherein a wall is provided along an edge outside the optical disc mounting area of the tray so as to be continuous with the wall provided so as to be positioned in the first opening. . 2. The optical disc apparatus according to claim 1, wherein the height of the wall is adjusted so that the wall and the carriage do not come into contact with the movement of the carriage. 2. The optical disc apparatus according to claim 1, wherein the third opening is provided in communication with the optical disc mounting area. The first opening is provided between the rotation driving means and the outer end of the optical pickup module, and the end opposite to the rotation driving means of the first opening is provided on the front end surface side of the tray. 2. The optical disk apparatus according to claim 1, wherein 2. The optical disc apparatus according to claim 1, wherein the third opening is provided in a front end surface portion of the tray with respect to the rotation driving means. 2. The optical disc apparatus according to claim 1, wherein a thickness of a central portion of the casing is 9.5 mm or less.

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