WO2016189588A1 - Disc drive and disc drive device - Google Patents
Disc drive and disc drive device Download PDFInfo
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- WO2016189588A1 WO2016189588A1 PCT/JP2015/064783 JP2015064783W WO2016189588A1 WO 2016189588 A1 WO2016189588 A1 WO 2016189588A1 JP 2015064783 W JP2015064783 W JP 2015064783W WO 2016189588 A1 WO2016189588 A1 WO 2016189588A1
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- disk
- opening
- disk drive
- dust
- rotation
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
Definitions
- the present invention relates to a disk drive for reproducing or recording a disk.
- a disk drive for reproducing or recording a disk is provided in various electronic devices such as a car audio and a navigation device.
- the disk drive the disk is reproduced or recorded by an optical pickup.
- the disc drive has a highly airtight structure. In this case, however, once dust enters the disk drive, it is difficult to discharge the dust to the outside due to high airtightness. If the disk drive is simply provided with a round hole or a square hole in order to discharge the dust that has entered the disk drive to the outside, the airtightness is lowered, and the dust is more likely to enter through the hole.
- Patent Document 1 discloses that a cover surface on the side facing a device panel of a disk device has a corner on the rotation direction side of the disk. A configuration is disclosed in which an opening serving as an exhaust hole is provided and exhaust is performed by rotating the disk.
- Patent Document 1 merely suggest that a simple exhaust hole may be provided at one place or a plurality of holes may be provided. Therefore, it is difficult to say that the dust can be efficiently discharged taking into consideration the characteristics of the flow of dust generated by the rotation of the disk.
- the exhaust hole as a simple hole described in Patent Document 1 it is natural that dust easily enters through the hole.
- the structure which provides the opening-and-closing member displaced according to this is also disclosed. However, if the characteristics of the member are not appropriate, the open / close member does not function as intended, and there is a problem that it is difficult to adjust the characteristics.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a disk drive in which internal dust is easily discharged and dust is difficult to enter from the outside.
- the disk drive according to the present invention is formed in a casing in which a disk to be reproduced or recorded is placed, and a side surface that intersects the rotating surface of the disk in the casing, and the disk rotates in the tangential direction of the circumference of the disk. It is characterized by comprising an opening through which the discharged dust enters, and a wall that extends from the peripheral edge of the opening and overlaps the side with a length that does not hinder the movement of the dust entering the opening. It is.
- Embodiment 1 is an exploded perspective view of a disk drive device according to Embodiment 1 of the present invention. It is sectional drawing and the front view of the disk drive which concern on Embodiment 1 of this invention. It is a figure which expands and shows a part of FIG. It is a figure which shows the modification of a wall part.
- FIG. 1 shows an exploded perspective view of a disk drive device 1 according to Embodiment 1 of the present invention.
- the disk drive device 1 controls the operation of the disk drive 2 having an optical pickup and a spindle motor for reproducing or recording the disk inside the box-shaped housing 20 and the operation of the disk drive 2 to obtain information on the disk.
- Substrates 3a and 3b are provided for reading and writing information on the disk.
- the disk drive 2 has an opening 20a into which a disk is inserted.
- the substrate 3a and the substrate 3b are connected to each other by a flexible cable 4, and are also connected to the disk drive 2 by wiring (not shown).
- the disk drive device 1 is used as an in-vehicle electronic device such as a car audio or a navigation device.
- the disk drive device 1 also includes a mechanical bracket 5 for attaching and fixing the disk drive 2 and the substrates 3a and 3b, a front chassis 6, a rear chassis 7, and a bottom chassis 8.
- the front chassis 6 has an opening 6a into which a disk is inserted at a position facing the opening 20a of the disk drive 2 when the entire disk drive device 1 is assembled.
- the disk drive device 1 has a top cover 9 located on the uppermost surface of the device.
- the disk drive device 1 is a so-called slot-in type in which when a user inserts a disk from the opening 6a, the disk is carried by a feed roller (not shown) provided in the disk drive 2 and set at a predetermined position. Is.
- FIG. 2A is a cross-sectional view of the disk drive 2 taken along a plane parallel to the disk 10.
- the disk 10 is placed inside the housing 20 of the disk drive 2 as a disk to be reproduced or recorded.
- FIG. 2B is a front view of the disk drive 2.
- FIG. 3 is an enlarged view of a portion A in FIG. A direction X and a direction Y in FIG. 2 are directions parallel to the rotation surface of the disk 10, the direction X corresponds to the width direction when the disk drive 2 is viewed from the front, and the direction Y is the depth direction. Equivalent to.
- the direction Z is a direction parallel to the rotation axis of the disk 10 and corresponds to a height direction when the disk drive 2 is viewed from the front.
- the dust that has entered the disk drive 2 due to its centrifugal force is released in the tangential direction at each point on the circumference of the disk 10.
- FIG. 2A the flow of dust emitted when the disk 10 rotates clockwise on the paper surface is indicated by arrows in the figure.
- the flow of these dusts is directed to the side surface 20 b that intersects the rotation surface of the disk 10 among the surfaces of the housing 20 of the disk drive 2.
- the rotation surface of the disk 10 means a virtual plane including the rotation surface.
- An opening 20c is formed on a side surface 20b of the housing 20 other than the surface on which the opening 20a into which the disk 10 is inserted is formed.
- a wall portion 20 d that extends substantially parallel to the rotation surface of the disk 10 from a part of the peripheral edge portion thereof is formed so as to be bent inside the housing 20.
- the wall portion 20 d whose one end is located at the peripheral edge of the opening 20 c overlaps the portion having a length a from the other end without contacting the side surface 20 b of the housing 20.
- a labyrinth structure is formed at 20c.
- the length a which is the amount by which the wall 20d overlaps the side surface 20b, is designed so as not to hinder the movement of dust entering the opening 20c, as shown in FIG. Since the angle ⁇ formed by the movement direction of the dust entering the opening 20c and the side surface 20b varies depending on the position of the opening 20c, the length a also varies depending on the position of the opening 20c. For example, as shown in FIG. 3, the movement direction F1 of dust released by the rotation of the disk 10 forms an angle ⁇ 1 with the side surface 20b, and the movement direction F2 of other dust forms an angle ⁇ 2 with the side surface 20b. Then, each enters a different opening 20c.
- the length a1 that is the overlap amount of the labyrinth structure provided in the opening 20c into which the dust in the moving direction F1 enters is the labyrinth provided in the opening 20c into which the dust in the moving direction F2 enters. It becomes shorter than the length a2 which is the overlap amount of the structure. If the length a1 of the wall 20d extending from the peripheral edge of the opening 20c into which the dust in the moving direction F1 enters is the same as the length a2, the length a1 is increased to the dust opening 20c in the moving direction F1. Will be prevented from entering. To prevent this, the wall portion 20d and the side surface 20b are overlapped by a length that does not hinder the movement of dust entering the opening 20c.
- the amount of overlap with the side surface 20b of the wall portion 20d is determined in consideration of the angle of entry of the dust released by the rotation of the disk 10 into the opening portion 20c.
- the dust entering the inside of the disk drive 2 is discharged in the tangential direction of the disk 10 by the rotation of the disk 10 and is smoothly and efficiently discharged to the outside.
- by forming a labyrinth structure in the opening 20c by the wall 20d it becomes difficult for dust to enter the inside of the disk drive 2 through the opening 20c.
- the opening 20c and the wall 20d extending from a part of the peripheral edge of the opening 20c can be formed at the same time as the housing 20 is manufactured by die casting.
- a case 20 with an opening 20c manufactured by processing a sheet metal and a resin part having a substantially S-shaped cross section obtained by injection molding one end of the resin part is connected to the peripheral part of the opening 20c.
- a resin part having a substantially S-shaped cross section may be used as the wall portion 20d by fixing it with a burring caulking or the like.
- the position and the number of the labyrinth structure provided by the opening 20c and the wall 20d are not limited to those illustrated in FIG. Even if there is only one somewhere on the side surface 20b of the housing 20, it is possible to discharge the dust and prevent the dust from entering from the part. However, when the dust released by the rotation of the disk 10 enters at a substantially right angle with respect to the opening 20c, it is possible to secure a sufficient amount of overlap between the wall 20d and the side surface 20b to form a labyrinth structure. Therefore, it is preferable to avoid forming the opening 20c and the wall 20d at such a position. For example, the region C in FIG. 2 corresponds to a region where it is preferable to avoid the formation of the opening 20c and the wall 20d.
- the angle ⁇ formed by the side surface 20b and the moving direction of the dust that is released by the rotation of the disk 10 and enters the opening 20c is set to a position that is equal to or less than the set value
- a wall 20d having an opening 20c and an appropriate length a may be formed.
- the side surface 20b is a rectangular surface whose both ends are arranged in the X direction or the Y direction in FIG. 2, but at the end of the both ends that is on the back side when viewed from the rotation direction of the disk 10.
- the opening 20c and the wall 20d are formed at the approached positions. In the case of the side surface 20b on the right side in FIG. 2A, the opening 20c and the wall 20d are formed at a position close to the end where the portion A is located.
- a plurality of labyrinth structures composed of one opening 20c and one wall 20d may be provided on the side surface 20b of the housing 20. At this time, a plurality may be provided side by side in the X direction or the Y direction in FIG. 2, or a plurality may be provided in the Z direction. In addition, in the Z direction, if the opening 20c is provided at a position that intersects with the rotation surface of the disk 10, the dust discharge efficiency is particularly high.
- the wall portion 20 d may be formed so as to be bent to the outside of the housing 20.
- FIG. 4 shows a wall portion 20d formed so as to be bent outward with respect to the opening portion 20c provided at the position shown in FIG. Even if it does in this way, the effect equivalent to the labyrinth structure shown in FIG. 3 can be acquired.
- the disk drive 2 is described as being of the slot-in type, but the labyrinth structure as described above may be applied to the tray type disk drive 2.
- a tray on which the disk 10 is placed slides out and enters from the housing 20 of the disk drive 2.
- a labyrinth structure similar to the slot-in type is formed on the side surface 20b of the housing 20.
- the wall 20d extending from the peripheral edge of the opening 20c is moved by the dust that is released by the rotation of the disk 10 and enters the opening 20c.
- the labyrinth structure is formed by overlapping with the side surface 20b with a length that does not hinder. Thereby, the internal dust is easily discharged through the opening 20c, and even if the opening 20c is formed, it is difficult for the dust to enter from the outside.
- the opening 20c is formed at a position close to the end on the back side when viewed from the rotation direction of the disk 10 out of both ends aligned in the direction parallel to the rotation surface of the disk 10 on the side surface 20b. It was decided. Accordingly, it is possible to more reliably realize dust discharge and prevention of intrusion.
- the opening 20c is formed at a position where it intersects with the rotating surface of the disk 10. Therefore, the discharge of dust is promoted.
- any component of the embodiment can be modified or any component of the embodiment can be omitted within the scope of the invention.
- the disk drive according to the present invention is configured to perform reproduction or recording of a disk such as a car audio because the internal dust is easily discharged and the dust does not easily enter the inside from the outside. It is suitable for use in electronic equipment.
- 1 disk drive device 2 disk drive, 3a, 3b board, 4 flexible cable, 5 mechanical bracket, 6 front chassis, 6a opening, 7 rear chassis, 8 bottom chassis, 9 top cover, 10 disks, 20 housing, 20a Opening, 20b side, 20c opening, 20d wall.
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- Feeding And Guiding Record Carriers (AREA)
Abstract
A disc drive (2), wherein openings (20c) are provided to a casing (20) in which a disc (10) used for playback or recording is placed in the interior. Wall parts (20d) extending from the peripheral edges of the openings (20c) overlap side surfaces (20b) at such a length as to impede the movement of dust that is let off by the rotation of the disc (10) and that enters the openings (20c), and a labyrinth structure is formed.
Description
この発明は、ディスクの再生又は記録を行うディスクドライブに関するものである。
The present invention relates to a disk drive for reproducing or recording a disk.
ディスクの再生又は記録を行うディスクドライブは、カーオーディオ、ナビゲーション機器等の様々な電子機器に設けられている。ディスクドライブでは、光ピックアップによりディスクの再生又は記録が行われる。光ピックアップに塵埃が堆積すると、ディスクの再生不良、書き込み不良等が発生するため、ディスクドライブでは、気密性の高い構造が採られる。しかしこの場合、ディスクドライブ内部にひとたび塵埃が侵入すると、気密性が高いためにその塵埃を外部へ排出するのが難しくなる。ディスクドライブ内部に侵入した塵埃を外部へ排出するために、ディスクドライブに単に丸孔、角孔を設けると、気密性が低くなり、むしろその孔を介して塵埃が侵入しやすくなる。
気密性を保ちながら、かつ塵埃の排出を図った技術として、例えば、特許文献１には、ディスク装置の装置パネルに対向する側のカバー面内において、ディスクの回転方向側にある隅部側に寄せて排気孔となる開口部を設け、ディスクの回転により排気を行うようにした構成が開示されている。 A disk drive for reproducing or recording a disk is provided in various electronic devices such as a car audio and a navigation device. In the disk drive, the disk is reproduced or recorded by an optical pickup. When dust accumulates on the optical pickup, a disc reproduction failure, a writing failure, or the like occurs. Therefore, the disc drive has a highly airtight structure. In this case, however, once dust enters the disk drive, it is difficult to discharge the dust to the outside due to high airtightness. If the disk drive is simply provided with a round hole or a square hole in order to discharge the dust that has entered the disk drive to the outside, the airtightness is lowered, and the dust is more likely to enter through the hole.
As a technique for achieving dust discharge while maintaining airtightness, for example, Patent Document 1 discloses that a cover surface on the side facing a device panel of a disk device has a corner on the rotation direction side of the disk. A configuration is disclosed in which an opening serving as an exhaust hole is provided and exhaust is performed by rotating the disk.
気密性を保ちながら、かつ塵埃の排出を図った技術として、例えば、特許文献１には、ディスク装置の装置パネルに対向する側のカバー面内において、ディスクの回転方向側にある隅部側に寄せて排気孔となる開口部を設け、ディスクの回転により排気を行うようにした構成が開示されている。 A disk drive for reproducing or recording a disk is provided in various electronic devices such as a car audio and a navigation device. In the disk drive, the disk is reproduced or recorded by an optical pickup. When dust accumulates on the optical pickup, a disc reproduction failure, a writing failure, or the like occurs. Therefore, the disc drive has a highly airtight structure. In this case, however, once dust enters the disk drive, it is difficult to discharge the dust to the outside due to high airtightness. If the disk drive is simply provided with a round hole or a square hole in order to discharge the dust that has entered the disk drive to the outside, the airtightness is lowered, and the dust is more likely to enter through the hole.
As a technique for achieving dust discharge while maintaining airtightness, for example, Patent Document 1 discloses that a cover surface on the side facing a device panel of a disk device has a corner on the rotation direction side of the disk. A configuration is disclosed in which an opening serving as an exhaust hole is provided and exhaust is performed by rotating the disk.
しかしながら、上記特許文献１に記載の内容は、排気孔に関しては、単純な排気孔を一箇所に設けただけ、あるいは単に複数の孔を設けてもよい旨の示唆があるにとどまる。従って、ディスクの回転により発生する塵埃の流れの特性を十分に考慮した、効率的な塵埃の排出ができているとは言い難い。また、上記特許文献１に記載の単純な孔としての排気孔では、当然その孔を介して塵埃が侵入しやすくなるため、同文献１には、その解決手段として、排気孔に風圧あるいは温度差に応じて変位する開閉部材を設ける構成も開示されている。しかし、部材の特性が適切でなければ、開閉部材は意図通りに機能せず、特性の調整が難しいという課題があった。
However, the contents described in Patent Document 1 merely suggest that a simple exhaust hole may be provided at one place or a plurality of holes may be provided. Therefore, it is difficult to say that the dust can be efficiently discharged taking into consideration the characteristics of the flow of dust generated by the rotation of the disk. In addition, in the exhaust hole as a simple hole described in Patent Document 1, it is natural that dust easily enters through the hole. The structure which provides the opening-and-closing member displaced according to this is also disclosed. However, if the characteristics of the member are not appropriate, the open / close member does not function as intended, and there is a problem that it is difficult to adjust the characteristics.
この発明は、上記のような課題を解決するためになされたもので、内部の塵埃が排出され易く、かつ、外部から塵埃が侵入しにくいディスクドライブを得ることを目的とする。
The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a disk drive in which internal dust is easily discharged and dust is difficult to enter from the outside.
この発明に係るディスクドライブは、再生又は記録対象のディスクが内部に置かれる筐体と、筐体におけるディスクの回転面と交わる側面に形成されて、ディスクの回転によりディスクの円周の接線方向に放出される塵埃が進入する開口部と、開口部の周縁部から延びて、開口部に進入する塵埃の移動を妨げない長さで側面とオーバラップする壁部とを備えることを特徴とするものである。
The disk drive according to the present invention is formed in a casing in which a disk to be reproduced or recorded is placed, and a side surface that intersects the rotating surface of the disk in the casing, and the disk rotates in the tangential direction of the circumference of the disk. It is characterized by comprising an opening through which the discharged dust enters, and a wall that extends from the peripheral edge of the opening and overlaps the side with a length that does not hinder the movement of the dust entering the opening. It is.
この発明によれば、内部の塵埃が排出され易く、かつ、外部から塵埃が侵入しにくいディスクドライブを得ることができる。
According to the present invention, it is possible to obtain a disk drive in which internal dust is easily discharged and dust is difficult to enter from the outside.
以下、この発明をより詳細に説明するために、この発明を実施するための形態について、添付の図面に従って説明する。
実施の形態１．
図１に、この発明の実施の形態１に係るディスクドライブ装置１の分解斜視図を示す。ディスクドライブ装置１は、ディスクの再生又は記録を行うための光ピックアップ及びスピンドルモータ等を箱型の筐体２０内部に有するディスクドライブ２と、ディスクドライブ２の動作を制御して、ディスクの情報を読み出させたり、ディスクに情報を書き込ませたりする基板３ａ，３ｂを有する。ディスクドライブ２には、ディスクが挿入される開口部２０ａが形成されている。基板３ａと基板３ｂは、互いにフレキシブルケーブル４により接続され、それぞれ不図示の配線によりディスクドライブ２とも接続されている。ディスクドライブ装置１は、例えばカーオーディオ、ナビゲーション機器等の車載電子機器として使用される。 Hereinafter, in order to explain the present invention in more detail, modes for carrying out the present invention will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 shows an exploded perspective view of a disk drive device 1 according to Embodiment 1 of the present invention. The disk drive device 1 controls the operation of thedisk drive 2 having an optical pickup and a spindle motor for reproducing or recording the disk inside the box-shaped housing 20 and the operation of the disk drive 2 to obtain information on the disk. Substrates 3a and 3b are provided for reading and writing information on the disk. The disk drive 2 has an opening 20a into which a disk is inserted. The substrate 3a and the substrate 3b are connected to each other by a flexible cable 4, and are also connected to the disk drive 2 by wiring (not shown). The disk drive device 1 is used as an in-vehicle electronic device such as a car audio or a navigation device.
実施の形態１．
図１に、この発明の実施の形態１に係るディスクドライブ装置１の分解斜視図を示す。ディスクドライブ装置１は、ディスクの再生又は記録を行うための光ピックアップ及びスピンドルモータ等を箱型の筐体２０内部に有するディスクドライブ２と、ディスクドライブ２の動作を制御して、ディスクの情報を読み出させたり、ディスクに情報を書き込ませたりする基板３ａ，３ｂを有する。ディスクドライブ２には、ディスクが挿入される開口部２０ａが形成されている。基板３ａと基板３ｂは、互いにフレキシブルケーブル４により接続され、それぞれ不図示の配線によりディスクドライブ２とも接続されている。ディスクドライブ装置１は、例えばカーオーディオ、ナビゲーション機器等の車載電子機器として使用される。 Hereinafter, in order to explain the present invention in more detail, modes for carrying out the present invention will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 shows an exploded perspective view of a disk drive device 1 according to Embodiment 1 of the present invention. The disk drive device 1 controls the operation of the
また、ディスクドライブ装置１は、ディスクドライブ２及び基板３ａ，３ｂを取り付けて固定するためのメカブラケット５、フロントシャーシ６、リアシャーシ７及びボトムシャーシ８を有する。特にフロントシャーシ６には、ディスクドライブ装置１全体を組み立てたときにディスクドライブ２の開口部２０ａと対面する位置に、ディスクが挿入される開口部６ａが形成されている。さらにディスクドライブ装置１は、装置最上面に位置するトップカバー９を有する。
ディスクドライブ装置１は、ユーザが開口部６ａからディスクを挿入すると、ディスクドライブ２の内部に設けられた不図示の送りローラによってディスクが運ばれて所定の位置にセットされる、いわゆるスロットイン方式のものである。 The disk drive device 1 also includes amechanical bracket 5 for attaching and fixing the disk drive 2 and the substrates 3a and 3b, a front chassis 6, a rear chassis 7, and a bottom chassis 8. In particular, the front chassis 6 has an opening 6a into which a disk is inserted at a position facing the opening 20a of the disk drive 2 when the entire disk drive device 1 is assembled. Further, the disk drive device 1 has a top cover 9 located on the uppermost surface of the device.
The disk drive device 1 is a so-called slot-in type in which when a user inserts a disk from the opening 6a, the disk is carried by a feed roller (not shown) provided in thedisk drive 2 and set at a predetermined position. Is.
ディスクドライブ装置１は、ユーザが開口部６ａからディスクを挿入すると、ディスクドライブ２の内部に設けられた不図示の送りローラによってディスクが運ばれて所定の位置にセットされる、いわゆるスロットイン方式のものである。 The disk drive device 1 also includes a
The disk drive device 1 is a so-called slot-in type in which when a user inserts a disk from the opening 6a, the disk is carried by a feed roller (not shown) provided in the
図２（ａ）は、ディスクドライブ２を、ディスク１０と平行な平面で切断した際の断面図である。ディスク１０は、再生又は記録対象のディスクとして、ディスクドライブ２の筐体２０内部に置かれている。図２（ｂ）は、ディスクドライブ２の正面図である。また、図３は、図２（ａ）のうちの部分Ａを拡大して示す図である。
図２中の方向Ｘ及び方向Ｙは、ディスク１０の回転面に平行な方向であり、方向Ｘは、ディスクドライブ２を正面から見た際の幅方向に相当し、方向Ｙは、奥行き方向に相当する。また、方向Ｚは、ディスク１０の回転軸に平行な方向であり、ディスクドライブ２を正面から見た際の高さ方向に相当する。 FIG. 2A is a cross-sectional view of thedisk drive 2 taken along a plane parallel to the disk 10. The disk 10 is placed inside the housing 20 of the disk drive 2 as a disk to be reproduced or recorded. FIG. 2B is a front view of the disk drive 2. FIG. 3 is an enlarged view of a portion A in FIG.
A direction X and a direction Y in FIG. 2 are directions parallel to the rotation surface of thedisk 10, the direction X corresponds to the width direction when the disk drive 2 is viewed from the front, and the direction Y is the depth direction. Equivalent to. The direction Z is a direction parallel to the rotation axis of the disk 10 and corresponds to a height direction when the disk drive 2 is viewed from the front.
図２中の方向Ｘ及び方向Ｙは、ディスク１０の回転面に平行な方向であり、方向Ｘは、ディスクドライブ２を正面から見た際の幅方向に相当し、方向Ｙは、奥行き方向に相当する。また、方向Ｚは、ディスク１０の回転軸に平行な方向であり、ディスクドライブ２を正面から見た際の高さ方向に相当する。 FIG. 2A is a cross-sectional view of the
A direction X and a direction Y in FIG. 2 are directions parallel to the rotation surface of the
ディスク１０が回転すると、その遠心力により、ディスクドライブ２内部に侵入した塵埃は、ディスク１０の円周の各点における接線方向に放出される。図２（ａ）では、ディスク１０が紙面における時計回りに回転する場合に放出される塵埃の流れを、図中の各矢印で示している。これらの塵埃の流れは、ディスクドライブ２の筐体２０における各面のうちの、ディスク１０の回転面と交わる側面２０ｂに向かう。なお、ここで、ディスク１０の回転面とは、当該回転面を含む、仮想の平面を意味する。
When the disk 10 rotates, the dust that has entered the disk drive 2 due to its centrifugal force is released in the tangential direction at each point on the circumference of the disk 10. In FIG. 2A, the flow of dust emitted when the disk 10 rotates clockwise on the paper surface is indicated by arrows in the figure. The flow of these dusts is directed to the side surface 20 b that intersects the rotation surface of the disk 10 among the surfaces of the housing 20 of the disk drive 2. Here, the rotation surface of the disk 10 means a virtual plane including the rotation surface.
筐体２０の側面２０ｂのうちの、ディスク１０が挿入される開口部２０ａが形成されている面以外の面には、開口部２０ｃが形成されている。開口部２０ｃでは、その周縁部の一部から、ディスク１０の回転面に略平行に延びる壁部２０ｄが、筐体２０の内側に折り曲げられるようにして形成されている。一端が開口部２０ｃの周縁部に位置する壁部２０ｄは、図３のようにその他端から長さａの部分が、筐体２０の側面２０ｂと接触せずにオーバラップしており、開口部２０ｃにラビリンス構造が形成されている。
An opening 20c is formed on a side surface 20b of the housing 20 other than the surface on which the opening 20a into which the disk 10 is inserted is formed. In the opening portion 20 c, a wall portion 20 d that extends substantially parallel to the rotation surface of the disk 10 from a part of the peripheral edge portion thereof is formed so as to be bent inside the housing 20. As shown in FIG. 3, the wall portion 20 d whose one end is located at the peripheral edge of the opening 20 c overlaps the portion having a length a from the other end without contacting the side surface 20 b of the housing 20. A labyrinth structure is formed at 20c.
壁部２０ｄが側面２０ｂとオーバラップする量である長さａは、図３に示すように、開口部２０ｃに進入する塵埃の移動を妨げない長さに設計される。開口部２０ｃの位置によって、開口部２０ｃに進入する塵埃の移動方向が側面２０ｂと成す角度θは異なるので、長さａも開口部２０ｃの位置によってそれぞれ異なる。
例えば、図３に示すように、ディスク１０の回転により放出される塵埃の移動方向Ｆ１は、側面２０ｂと角度θ１を成し、他の塵埃の移動方向Ｆ２は、側面２０ｂと角度θ２を成して、それぞれ別の開口部２０ｃに進入する。θ１＞θ２の場合、移動方向Ｆ１の塵埃が進入する開口部２０ｃに設けられたラビリンス構造のオーバラップ量である長さａ１は、移動方向Ｆ２の塵埃が進入する開口部２０ｃに設けられたラビリンス構造のオーバラップ量である長さａ２より短くなる。もし、移動方向Ｆ１の塵埃が進入する開口部２０ｃの周縁部から延びる壁部２０ｄの長さａ１を、長さａ２と同じにして長くしてしまうと、移動方向Ｆ１の塵埃の開口部２０ｃへの進入が妨げられてしまう。こうしたことが無いよう、開口部２０ｃに進入する塵埃の移動を妨げない長さだけ、壁部２０ｄと側面２０ｂとをオーバラップさせる。 The length a, which is the amount by which thewall 20d overlaps the side surface 20b, is designed so as not to hinder the movement of dust entering the opening 20c, as shown in FIG. Since the angle θ formed by the movement direction of the dust entering the opening 20c and the side surface 20b varies depending on the position of the opening 20c, the length a also varies depending on the position of the opening 20c.
For example, as shown in FIG. 3, the movement direction F1 of dust released by the rotation of thedisk 10 forms an angle θ1 with the side surface 20b, and the movement direction F2 of other dust forms an angle θ2 with the side surface 20b. Then, each enters a different opening 20c. When θ1> θ2, the length a1 that is the overlap amount of the labyrinth structure provided in the opening 20c into which the dust in the moving direction F1 enters is the labyrinth provided in the opening 20c into which the dust in the moving direction F2 enters. It becomes shorter than the length a2 which is the overlap amount of the structure. If the length a1 of the wall 20d extending from the peripheral edge of the opening 20c into which the dust in the moving direction F1 enters is the same as the length a2, the length a1 is increased to the dust opening 20c in the moving direction F1. Will be prevented from entering. To prevent this, the wall portion 20d and the side surface 20b are overlapped by a length that does not hinder the movement of dust entering the opening 20c.
例えば、図３に示すように、ディスク１０の回転により放出される塵埃の移動方向Ｆ１は、側面２０ｂと角度θ１を成し、他の塵埃の移動方向Ｆ２は、側面２０ｂと角度θ２を成して、それぞれ別の開口部２０ｃに進入する。θ１＞θ２の場合、移動方向Ｆ１の塵埃が進入する開口部２０ｃに設けられたラビリンス構造のオーバラップ量である長さａ１は、移動方向Ｆ２の塵埃が進入する開口部２０ｃに設けられたラビリンス構造のオーバラップ量である長さａ２より短くなる。もし、移動方向Ｆ１の塵埃が進入する開口部２０ｃの周縁部から延びる壁部２０ｄの長さａ１を、長さａ２と同じにして長くしてしまうと、移動方向Ｆ１の塵埃の開口部２０ｃへの進入が妨げられてしまう。こうしたことが無いよう、開口部２０ｃに進入する塵埃の移動を妨げない長さだけ、壁部２０ｄと側面２０ｂとをオーバラップさせる。 The length a, which is the amount by which the
For example, as shown in FIG. 3, the movement direction F1 of dust released by the rotation of the
このように、ディスク１０の回転により放出される塵埃の開口部２０ｃへの進入角度を考慮して、壁部２０ｄの側面２０ｂとのオーバラップ量が決められている。これにより、ディスクドライブ２内部に侵入している塵埃は、ディスク１０の回転によりディスク１０の接線方向に放出されて、スムーズにかつ効率的に外部へ排出される。また、壁部２０ｄにより開口部２０ｃにラビリンス構造を形成することで、塵埃が開口部２０ｃを介してディスクドライブ２内部に侵入しづらくなる。特に、ディスク１０の回転時は、当該ディスク１０の回転に伴い気流も発生し、開口部２０ｃではディスクドライブ２内部から外部へと向かう気流も通過するので、外部から開口部２０ｃを介して塵埃が侵入することはほとんどない。
Thus, the amount of overlap with the side surface 20b of the wall portion 20d is determined in consideration of the angle of entry of the dust released by the rotation of the disk 10 into the opening portion 20c. As a result, the dust entering the inside of the disk drive 2 is discharged in the tangential direction of the disk 10 by the rotation of the disk 10 and is smoothly and efficiently discharged to the outside. Further, by forming a labyrinth structure in the opening 20c by the wall 20d, it becomes difficult for dust to enter the inside of the disk drive 2 through the opening 20c. In particular, when the disk 10 is rotated, an air flow is generated along with the rotation of the disk 10, and an air flow from the inside to the outside of the disk drive 2 also passes through the opening 20 c, so that dust is generated from the outside through the opening 20 c. There is almost no invasion.
開口部２０ｃ及び開口部２０ｃの周縁部の一部から延びる壁部２０ｄは、ダイカストにより筐体２０を製造すると同時に形成することができる。あるいは、板金を加工して製造された開口部２０ｃ付きの筐体２０と、射出成形して得た断面略Ｓ字の樹脂部品とを用いて、当該樹脂部品の一端を開口部２０ｃの周縁部にバーリングカシメ等にて固定することで、断面略Ｓ字の樹脂部品を壁部２０ｄとしてもよい。
The opening 20c and the wall 20d extending from a part of the peripheral edge of the opening 20c can be formed at the same time as the housing 20 is manufactured by die casting. Alternatively, by using a case 20 with an opening 20c manufactured by processing a sheet metal and a resin part having a substantially S-shaped cross section obtained by injection molding, one end of the resin part is connected to the peripheral part of the opening 20c. A resin part having a substantially S-shaped cross section may be used as the wall portion 20d by fixing it with a burring caulking or the like.
なお、開口部２０ｃと壁部２０ｄとによりラビリンス構造を設ける位置及び個数は、図２（ａ）で示したものに限らない。筐体２０の側面２０ｂのどこかに１つあるだけでも、塵埃の排出とその部位からの塵埃の侵入防止は可能である。ただし、ディスク１０の回転により放出される塵埃が開口部２０ｃに対してほぼ直角に進入する場合は、ラビリンス構造とするのに十分な壁部２０ｄと側面２０ｂとのオーバラップ量を確保することができないので、そうした位置に開口部２０ｃ及び壁部２０ｄを形成するのは避けるほうが好ましい。例えば、図２の領域Ｃは、開口部２０ｃ及び壁部２０ｄの形成を避けるのが好ましい領域に当たる。
In addition, the position and the number of the labyrinth structure provided by the opening 20c and the wall 20d are not limited to those illustrated in FIG. Even if there is only one somewhere on the side surface 20b of the housing 20, it is possible to discharge the dust and prevent the dust from entering from the part. However, when the dust released by the rotation of the disk 10 enters at a substantially right angle with respect to the opening 20c, it is possible to secure a sufficient amount of overlap between the wall 20d and the side surface 20b to form a labyrinth structure. Therefore, it is preferable to avoid forming the opening 20c and the wall 20d at such a position. For example, the region C in FIG. 2 corresponds to a region where it is preferable to avoid the formation of the opening 20c and the wall 20d.
塵埃の排出と侵入防止をより確実に両立するには、ディスク１０の回転により放出されて開口部２０ｃに進入する塵埃の移動方向と側面２０ｂとが成す角度θが設定値以下となる位置に、開口部２０ｃ及び適切な長さａを持つ壁部２０ｄを形成するとよい。例えば、側面２０ｂは、図２におけるＸ方向又はＹ方向に両端部が並ぶ矩形形状の面であるが、その両端部のうちの、ディスク１０の回転方向からみて奥側となる方の端部に寄った位置に、開口部２０ｃ及び壁部２０ｄを形成するようにする。図２（ａ）の紙面右側の側面２０ｂであれば、部分Ａが位置する端部に寄った位置に、開口部２０ｃ及び壁部２０ｄを形成する。
In order to achieve both dust discharge and intrusion prevention more reliably, the angle θ formed by the side surface 20b and the moving direction of the dust that is released by the rotation of the disk 10 and enters the opening 20c is set to a position that is equal to or less than the set value A wall 20d having an opening 20c and an appropriate length a may be formed. For example, the side surface 20b is a rectangular surface whose both ends are arranged in the X direction or the Y direction in FIG. 2, but at the end of the both ends that is on the back side when viewed from the rotation direction of the disk 10. The opening 20c and the wall 20d are formed at the approached positions. In the case of the side surface 20b on the right side in FIG. 2A, the opening 20c and the wall 20d are formed at a position close to the end where the portion A is located.
塵埃をより多く排出させるには、１つの開口部２０ｃと１つの壁部２０ｄとからなるラビリンス構造を、筐体２０の側面２０ｂに複数設けるとよい。このとき、図２におけるＸ方向又はＹ方向に複数並べて設けてもよいし、Ｚ方向に複数並べて設けてもよい。なお、Ｚ方向においては、ディスク１０の回転面と交わる位置に開口部２０ｃを設けると、塵埃の排出効率が特に高くなる。
In order to discharge more dust, a plurality of labyrinth structures composed of one opening 20c and one wall 20d may be provided on the side surface 20b of the housing 20. At this time, a plurality may be provided side by side in the X direction or the Y direction in FIG. 2, or a plurality may be provided in the Z direction. In addition, in the Z direction, if the opening 20c is provided at a position that intersects with the rotation surface of the disk 10, the dust discharge efficiency is particularly high.
また、図４に示すように、壁部２０ｄが、筐体２０の外側に折り曲げられるようにして形成されていてもよい。図４は、図３に示す位置に設けた開口部２０ｃに対して、外側に折り曲げられるようにして形成された壁部２０ｄを示したものである。このようにしても、図３に示すラビリンス構造と同等の効果を得ることができる。
Further, as shown in FIG. 4, the wall portion 20 d may be formed so as to be bent to the outside of the housing 20. FIG. 4 shows a wall portion 20d formed so as to be bent outward with respect to the opening portion 20c provided at the position shown in FIG. Even if it does in this way, the effect equivalent to the labyrinth structure shown in FIG. 3 can be acquired.
上記では、ディスクドライブ２がスロットイン方式のものであるとして説明したが、トレイ方式のディスクドライブ２に対して、上記のようなラビリンス構造を適用してもよい。トレイ方式は、ディスク１０を乗せるトレイが、ディスクドライブ２の筐体２０からスライドして出たり入ったりするものである。トレイ方式のディスクドライブ２の場合も、その筐体２０の側面２０ｂに、スロットイン方式と同様のラビリンス構造を形成する。
In the above description, the disk drive 2 is described as being of the slot-in type, but the labyrinth structure as described above may be applied to the tray type disk drive 2. In the tray system, a tray on which the disk 10 is placed slides out and enters from the housing 20 of the disk drive 2. Also in the case of the tray type disk drive 2, a labyrinth structure similar to the slot-in type is formed on the side surface 20b of the housing 20.
以上のように、この実施の形態１に係るディスクドライブ装置１によれば、開口部２０ｃの周縁部から延びる壁部２０ｄは、ディスク１０の回転により放出されて開口部２０ｃに進入する塵埃の移動を妨げない長さで側面２０ｂとオーバラップして、ラビリンス構造を形成する。これにより、開口部２０ｃを介して内部の塵埃が排出され易くなり、かつ、開口部２０ｃを形成しても外部から塵埃が侵入しにくくなる。
As described above, according to the disk drive device 1 according to the first embodiment, the wall 20d extending from the peripheral edge of the opening 20c is moved by the dust that is released by the rotation of the disk 10 and enters the opening 20c. The labyrinth structure is formed by overlapping with the side surface 20b with a length that does not hinder. Thereby, the internal dust is easily discharged through the opening 20c, and even if the opening 20c is formed, it is difficult for the dust to enter from the outside.
また、開口部２０ｃは、側面２０ｂのディスク１０の回転面に平行な方向に並ぶ両端部のうちの、ディスク１０の回転方向からみて奥側となる方の端部に寄った位置に形成されることとした。従って、塵埃の排出と侵入防止をより確実に実現できる。
In addition, the opening 20c is formed at a position close to the end on the back side when viewed from the rotation direction of the disk 10 out of both ends aligned in the direction parallel to the rotation surface of the disk 10 on the side surface 20b. It was decided. Accordingly, it is possible to more reliably realize dust discharge and prevention of intrusion.
また、開口部２０ｃ及び壁部２０ｄは、複数備えられていることとした。従って、塵埃の排出が促進される。
Also, a plurality of openings 20c and walls 20d are provided. Therefore, the discharge of dust is promoted.
また、開口部２０ｃは、ディスク１０の回転面と交わる位置に形成されていることとした。従って、塵埃の排出が促進される。
Further, the opening 20c is formed at a position where it intersects with the rotating surface of the disk 10. Therefore, the discharge of dust is promoted.
なお、本願発明はその発明の範囲内において、実施の形態の任意の構成要素の変形、もしくは実施の形態の任意の構成要素の省略が可能である。
In the present invention, any component of the embodiment can be modified or any component of the embodiment can be omitted within the scope of the invention.
以上のように、この発明に係るディスクドライブは、内部の塵埃が排出され易く、かつ、外部から内部に塵埃が侵入しにくいものであるため、カーオーディオ等のディスクの再生又は記録を行う構成を必要とする電子機器に組み込んで用いるのに適している。
As described above, the disk drive according to the present invention is configured to perform reproduction or recording of a disk such as a car audio because the internal dust is easily discharged and the dust does not easily enter the inside from the outside. It is suitable for use in electronic equipment.
１ ディスクドライブ装置、２ ディスクドライブ、３ａ，３ｂ 基板、４ フレキシブルケーブル、５ メカブラケット、６ フロントシャーシ、６ａ 開口部、７ リアシャーシ、８ ボトムシャーシ、９ トップカバー、１０ ディスク、２０ 筐体、２０ａ 開口部、２０ｂ 側面、２０ｃ 開口部、２０ｄ 壁部。
1 disk drive device, 2 disk drive, 3a, 3b board, 4 flexible cable, 5 mechanical bracket, 6 front chassis, 6a opening, 7 rear chassis, 8 bottom chassis, 9 top cover, 10 disks, 20 housing, 20a Opening, 20b side, 20c opening, 20d wall.
Claims (5)
- 再生又は記録対象のディスクが内部に置かれる筐体と、
前記筐体における前記ディスクの回転面と交わる側面に形成されて、前記ディスクの回転により前記ディスクの円周の接線方向に放出される塵埃が進入する開口部と、
前記開口部の周縁部から延びて、前記開口部に進入する前記塵埃の移動を妨げない長さで前記側面とオーバラップする壁部とを備えることを特徴とするディスクドライブ。 A housing in which a disc to be reproduced or recorded is placed;
An opening that is formed on a side surface of the housing that intersects the rotation surface of the disk, and into which dust that is released in a tangential direction of the circumference of the disk by the rotation of the disk enters;
A disk drive comprising: a wall portion extending from a peripheral edge portion of the opening portion and having a length that does not prevent movement of the dust entering the opening portion and overlaps the side surface. - 前記開口部は、前記側面の前記回転面に平行な方向に並ぶ両端部のうちの、前記ディスクの回転方向からみて奥側となる方の端部に寄った位置に形成されることを特徴とする請求項１記載のディスクドライブ。 The opening is formed at a position close to an end on the back side when viewed from the rotation direction of the disk, of both end portions of the side surface aligned in a direction parallel to the rotation surface. The disk drive according to claim 1.
- 前記開口部及び前記壁部は、複数備えられていることを特徴とする請求項１記載のディスクドライブ。 2. The disk drive according to claim 1, wherein a plurality of the openings and the wall are provided.
- 前記開口部は、前記回転面と交わる位置に形成されていることを特徴とする請求項１記載のディスクドライブ。 2. The disk drive according to claim 1, wherein the opening is formed at a position intersecting with the rotating surface.
- 請求項１記載のディスクドライブを備えることを特徴とするディスクドライブ装置。 A disk drive device comprising the disk drive according to claim 1.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017520066A JP6456493B2 (en) | 2015-05-22 | 2015-05-22 | Disk drive and disk drive device |
| CN201590001401.7U CN207264781U (en) | 2015-05-22 | 2015-05-22 | Disk drives and disc drive appts |
| PCT/JP2015/064783 WO2016189588A1 (en) | 2015-05-22 | 2015-05-22 | Disc drive and disc drive device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/064783 WO2016189588A1 (en) | 2015-05-22 | 2015-05-22 | Disc drive and disc drive device |
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| WO2016189588A1 true WO2016189588A1 (en) | 2016-12-01 |
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| PCT/JP2015/064783 WO2016189588A1 (en) | 2015-05-22 | 2015-05-22 | Disc drive and disc drive device |
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| JP (1) | JP6456493B2 (en) |
| CN (1) | CN207264781U (en) |
| WO (1) | WO2016189588A1 (en) |
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| JP2008226329A (en) * | 2007-03-12 | 2008-09-25 | Mitsubishi Electric Corp | Dust prevention structure of optical disk |
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2015
- 2015-05-22 JP JP2017520066A patent/JP6456493B2/en not_active Expired - Fee Related
- 2015-05-22 WO PCT/JP2015/064783 patent/WO2016189588A1/en active Application Filing
- 2015-05-22 CN CN201590001401.7U patent/CN207264781U/en not_active Expired - Fee Related
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|---|---|---|---|---|
| GB189012A (en) * | 1922-01-17 | 1922-11-23 | Ernest Leonard Ford | Automatic ventilators for the prevention of draughts caused by disturbed air and wind in the interiors of private and commercial cars or vehicles, and for the ventilation of interiors and the like |
| JPS5514990Y2 (en) * | 1975-03-14 | 1980-04-07 | ||
| JPS55168410U (en) * | 1979-05-22 | 1980-12-03 | ||
| JPS6138017Y2 (en) * | 1981-06-19 | 1986-11-04 | ||
| JP2008226329A (en) * | 2007-03-12 | 2008-09-25 | Mitsubishi Electric Corp | Dust prevention structure of optical disk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN207264781U (en) | 2018-04-20 |
| JPWO2016189588A1 (en) | 2017-08-24 |
| JP6456493B2 (en) | 2019-01-23 |
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