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WO2007077709A1 - Dispositif a disque - Google Patents

Dispositif a disque Download PDF

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Publication number
WO2007077709A1
WO2007077709A1 PCT/JP2006/324266 JP2006324266W WO2007077709A1 WO 2007077709 A1 WO2007077709 A1 WO 2007077709A1 JP 2006324266 W JP2006324266 W JP 2006324266W WO 2007077709 A1 WO2007077709 A1 WO 2007077709A1
Authority
WO
WIPO (PCT)
Prior art keywords
disk
housing
control device
air
suction port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2006/324266
Other languages
English (en)
Japanese (ja)
Inventor
Takashi Takebuchi
Toshinori Mochizuki
Akira Shimizu
Shuji Ogiwara
Yusuke Hirano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corp filed Critical Pioneer Corp
Priority to CN2006800473865A priority Critical patent/CN101331551B/zh
Priority to JP2007552888A priority patent/JP4652419B2/ja
Publication of WO2007077709A1 publication Critical patent/WO2007077709A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G11B33/1446—Reducing contamination, e.g. by dust, debris
    • G11B33/146—Reducing contamination, e.g. by dust, debris constructional details of filters

Definitions

  • the present invention relates to a disk device, and more particularly to a disk device capable of circulating air between the outside and the inside of a housing.
  • a disk device that performs at least one of recording of information recorded on an inserted disk and recording of information on the disk is not capable of air flow between the outside and the inside of the housing.
  • a fan for circulation is provided. The air outside the housing is sucked into the housing through the suction port as the fan rotates, passes through the housing, and is exhausted to the outside through the discharge port. Thereby, air is circulated between the outside and the inside of the housing, and cooling by the air passing through the inside of the housing is performed.
  • This disk device is provided with a disk rotating device.
  • This disk rotating device is a spindle motor that rotates a disk inserted into the housing, a pick-up device that reads or writes information recorded on the rotating disk, and is inserted into the disk device. It is equipped with multiple mechanisms such as a loading device that moves the disc to the disc playback position.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2005-56462 Disclosure of the invention
  • the disk rotating device generates heat during operation of the disk device. Therefore, in the disk device shown in Patent Document 1, since the disk rotating device has a sealed structure, heat tends to be trapped in the disk rotating device. Therefore, in Patent Document 1 described above, by enclosing the disk rotation device with a highly heat-absorbing shielding plate, heat in the disk rotation device is efficiently transmitted to the air flowing inside the housing (case).
  • the present invention solves the above-described problem as an example, and sufficiently suppresses the effect of dust flowing into the housing, and sufficiently provides the cooling effect by the air passing through the housing.
  • An object of the present invention is to provide a disk device that can be used.
  • the disc device according to claim 1 of the present invention is formed on the front surface and has a disc insertion port for inserting the disc into the housing from the outside, and an intake port for sucking air into the housing from the outside.
  • a housing having a discharge port for exhausting the air sucked into the housing to the outside, and a position in the housing facing the disk insertion port at a position substantially opposed to the inside of the housing.
  • a disk rotating device that is arranged in a sealed manner, rotates a disk inserted by the disk insertion locuser and reads at least information recorded on the rotating disk, and a discharge port from the inside of the housing.
  • a fan for forcibly discharging the air sucked from the suction port to the outside and a position inside the housing facing the disk rotating device, and at least the disk of the disk by the disk rotating device.
  • a control device that controls the reading of information recorded on the rotating disk and the drive control of the fan, wherein the suction port and the discharge port are included in the housing.
  • the disk rotation device is formed at a position where air sucked from the suction port passes between the disk rotation device and the control device and can be discharged from the discharge roller.
  • the portion through which the air passes has a substantially flat structure along the air flow.
  • the disk device according to the present invention has an effect that the cooling effect by the air passing through the inside of the housing can be sufficiently exerted while the influence of the dust flowing into the housing is suppressed.
  • FIG. 1 is a diagram (plan view) showing a configuration example of a disk device that works well with this embodiment.
  • FIG. 2 is a diagram (front view) showing an example of the configuration of a disk device that works on this embodiment.
  • FIG. 3 is a diagram (rear view) showing an example of the configuration of a disk device that works well with this embodiment.
  • FIG. 4 is a diagram (side view) showing an example of the configuration of a disk device that works on this embodiment.
  • FIG. 5 is a detailed view of the inside of the housing.
  • FIG. 6 is a diagram showing a configuration example of a disk rotating device.
  • FIG. 7 is a connector cross-sectional view of the back surface of the disk device.
  • the disk device includes at least a housing, a disk rotating device, a fan, and a control device.
  • the housing has a disk insertion port, a suction port, and a discharge port.
  • the disk insertion slot is formed on the front surface of the housing, that is, the front surface of the disk device, and is used for inserting a powerful disk into the housing with an external force.
  • the suction port is for sucking air from outside into the housing.
  • the discharge port is for exhausting the heat generated with the air sucked into the housing to the outside.
  • the suction port and the discharge port are formed in the housing at a position where the air sucked from the suction port passes between the disk rotating device and the control device, and the discharge rocker can be discharged.
  • the disk rotating device is arranged so as to be substantially sealed with respect to the inside of the housing.
  • This disk rotating device rotates a disk inserted from a disk insertion slot and reads at least information recorded on the rotating disk.
  • the fan forcibly discharges the heat generated with the air sucked from the inlet through the outlet through the outlet.
  • the control device is arranged in a position facing the disk rotating device inside the housing. This control device performs at least disk rotation control by the disk rotation device, reading control of information recorded on the rotating disk, and fan drive control.
  • the portion through which the air passes has a substantially flat structure along the air flow.
  • the disk device according to the first embodiment is characterized by the above-described configuration, so that the disk rotating device is disposed in a substantially hermetically sealed manner inside the housing. Even if dust is contained in the sucked air, the dust can be prevented from entering the disk rotating device. Thereby, the influence by the dust which flows in into a housing
  • the surface of the disk device according to the first embodiment facing the control device of the disk rotating device is substantially flat.
  • the disc device according to the second embodiment is characterized by the above-described configuration, so that the air sucked from the suction port smoothly passes through the surface facing the control device of the disc rotation device to the discharge port. It flows with direction. Therefore, the heat of the disk rotating device is easily transferred to the air passing through the inside of the housing through the surface of the disk rotating device facing the control device. As a result, the disk rotating device can be sufficiently cooled by the air passing through the inside of the housing.
  • the opening that communicates with the inside of the housing of the disk rotating device is closed by a closing member.
  • the disc device according to Embodiment 3 is characterized by the above-described configuration, whereby the disc is rotated by the disc rotating device, so that the internal force of the housing is sucked into the disc rotating device from the suction port. Can be prevented from being sucked. Therefore, it is possible to prevent dust from entering the disk rotating device.
  • the surface of the control device that faces the disk rotation device is covered with a substantially flat member. ! /
  • the disk device according to Embodiment 4 is characterized by the above-described configuration, so that air sucked from the suction port smoothly flows to the discharge port on the surface of the control device facing the disk rotation device. It flows with direction. Therefore, the surface of the control device facing the disk rotation device.
  • the heat of the control device that is, the heat of the electronic component force mounted on the control device that generates heat is easily transmitted to the air passing through the inside of the housing. Thereby, the control device can be sufficiently cooled by the air passing through the inside of the housing.
  • accumulation of dust between electronic components can prevent the dust from adhering to the control device. As a result, the malfunction of the disk device can be suppressed.
  • the disk device according to the fifth embodiment is the same as the disk device according to any one of the first to fourth embodiments, among the electronic components mounted on the control device and projecting toward the disk rotating device.
  • the electronic component protruding from the electronic component is arranged near the end rather than the central portion of the control device.
  • the disk device according to the fifth embodiment is characterized by the above-described configuration, so that when the air sucked from the suction port passes between the disk rotating device and the control device, the electronic unit It becomes difficult to collide with the product, and it is possible to suppress the stagnation of the flow. Therefore, the cooling effect by the air passing through the inside of the housing can be sufficiently exerted.
  • the disk device according to Embodiment 6 is the disk device according to any one of Embodiments 1 to 5, in which the housing communicates with the outside except for the disk insertion port, the suction port, and the discharge port. Is a hermetically sealed structure.
  • the disc device according to Embodiment 6 is characterized by the above-described configuration, so that external air is sucked from only the suction port, passes through the inside of the housing, and only the discharge port is discharged to the outside. It is done. Therefore, it is possible to suppress the disturbance of the air flow sucked into the housing. As a result, the suction air can be surely passed between the disk rotating device and the control device, and the cooling effect by the air passing through the inside of the housing can be sufficiently exerted.
  • the disk device according to Embodiment 7 is the disk device according to any one of Embodiments 1 to 6, wherein the suction port is at least on both side surfaces near the front surface or the bottom surface of the disk device 1. One or more are formed on either side.
  • the disc device according to Embodiment 7 is characterized by the above-described configuration.
  • the suction port may be filled with external force dust from the vehicle. It will be formed other than the part exposed on the front (front). Therefore, compared with the case where the suction port is formed in the passenger compartment, the dust contained in the air sucked from the suction port is reduced, and the dust contained in the air sucked into the housing can be reduced. .
  • dust can be prevented from entering the housing, and dust can be prevented from entering the inside of the disk rotating device and dust from adhering to the control device. Can be suppressed.
  • the area of the suction port is equal to or larger than the area of the discharge port.
  • the disk device according to the eighth embodiment is characterized by the above-described configuration, so that the pressure difference between the inside and the outside of the housing during driving of the fan can be reduced. Therefore, compared with the case where the atmospheric pressure inside the housing is lower than the external atmospheric pressure, the number of rotations of the fan at the same discharge amount can be reduced. Thereby, the noise of a fan can be suppressed.
  • FIG. 1 to FIG. 4 are diagrams showing an example of the configuration of a disk device that works on this embodiment.
  • FIG. 5 is a detailed view of the inside of the housing.
  • FIG. 6 is a diagram showing a configuration example of the disk rotating device.
  • FIG. 7 is a cross-sectional view of the connector on the back of the disk device.
  • FIG. 5 is a perspective view showing a state where the upper lid of the housing and the exposed plate are removed.
  • an in-vehicle disk device attached to a console panel of a passenger compartment will be described.
  • the power to explain the disc device that can only reproduce the information recorded on the inserted disc, the reproduction of the information recorded on the inserted disc, and the inserted disc It may be a disk device capable of recording information on the disk.
  • the disc includes an optical disc such as a DVD (Digital Versatile Disc), a CD (Compact Disc), a BD (Blu-ray Disc), and an HDDVD (High Definition Digital Versatile Disc).
  • the disk device 1 includes a housing 2, a disk rotating device 3, and a fan 4. And a control device 5, a sealing member 6, and a support member 7.
  • the disk rotation device 3, the fan 4, and the control device 5 are housed in the housing interior 24, which is inside the housing 2.
  • the disk rotation device 3 and the control device 5 are housed so as to face each other.
  • the housing 2 houses the disk rotating device 3, the fan 4, and the control device 5 in a housing interior 24 that is the inside of the housing 2.
  • the housing 2 includes a chassis 21, an exposed plate 22, and an upper lid 23.
  • the chassis 21 includes side portions 21a and b which are both side surfaces of the disk device 1, a back surface portion 21c which is the back surface of the disk device 1, a bottom surface portion 21d which is the bottom surface of the disk device 1, a suction port 21e, and a discharge port. 21f.
  • suction port 21e and the discharge port 21f are configured so that the air sucked from each suction port 21e in the casing 2 passes through the interior of the casing 24, that is, between the disk rotating device 3 and the control device 5, and is It is formed at a position where it can be discharged from the outlet 2 If.
  • the exposed plate 22 is the front surface of the disk device 1.
  • the upper lid 23 is the upper surface of the disk device 1.
  • the chassis 21 is made of a metal plate, and has side portions 21a and b which are both side surfaces of the disk device 1, a back surface portion 21c which is the back surface of the disk device 1, and a bottom surface which is the bottom surface of the disk device 1. Part 21d.
  • a plurality of suction ports 21e are formed in the side surface portions 21a and b, respectively.
  • Each suction port 21e communicates the outside with the inside 24 of the housing, and sucks outside air into the inside 24 of the housing.
  • Each suction port 21e is formed in the vicinity of the exposed plate 22 in each of the side surface portions 21a, b. That is, each suction port 21e is formed on both side surfaces near the front surface of the disk device 1.
  • a fan 4 and a plurality of connectors 25 are attached to the back surface portion 21c on the inside of the housing.
  • a plurality of discharge ports 21f (in this embodiment, three locations) are formed in the back surface portion 21c.
  • Each discharge port 21f communicates the outside and the inside of the housing 24 via the fan 4, and discharges the air sucked into the inside of the housing 24 from each suction port 21e. Therefore, as shown by an arrow A, the air sucked from each suction port 21e passes through the inside of the casing 24, that is, between the disk rotating device 3 and the control device 5, and is discharged from each discharge port 21f.
  • Each of the outlets 21f is formed in the vicinity of the center portion of the back surface portion 21c.
  • a plurality of support members 7 are fixed to the bottom surface portion 21d on the inside of the housing.
  • the bottom surface portion 2 Id is formed with locking holes 21h (in the present embodiment, two locations, not shown) in the vicinity of the exposed plate 22.
  • the control device 5 is supported and fixed in the housing interior 24 by screwing a fixing means such as a screw into the support member 7.
  • the exposed plate 22 covers the front surface (not shown) of the chassis 21.
  • the exposed plate 22 is made of synthetic resin, etc., and a disc insertion port 22a for inserting a disc (not shown) from the outside into the housing 24, here the disc rotating device 3, and the outside of the inserted disc.
  • An eject switch 22b for instructing unloading is formed.
  • the idato switch 22b is connected to the control device 5, and when the user force eject switch 22b is pressed, the control device 5 drives a loading device (not shown) of the disk rotation device 3 which will be described later.
  • the disc inserted inside is carried out to the outside through the disc insertion slot 22a.
  • the exposed plate 22 is formed with a protruding portion 22d protruding on the chassis side so as to face the respective locking holes 21h of the bottom surface portion 21d on the chassis-side surface 22c.
  • Each protruding portion 22d is formed with a locking projection 22e that locks the exposed plate 22 to the chassis 21 by entering each locking hole 21h.
  • the exposed plate 22 is formed with a protruding portion 22f protruding on the chassis side so as to face the respective locking holes 23a of the upper lid 23 on the surface 22c on the chassis side.
  • Each protrusion 22f is formed with a locking projection 22g that locks the exposed plate 22 to the upper lid 23 by entering each locking hole 23a.
  • protrusions 22d, f are formed so as to cover the respective locking holes 21h, 23a. That is, when the exposed plate 22 is locked to the chassis 21 and the upper lid 23, the locking holes 21h and 23a are sealed by the protruding portions 22d and f formed on the exposed plate 22, respectively. .
  • the exposed plate 22 is a portion of the disk device 1 that is exposed to the passenger compartment when the disk device 1 is mounted on a vehicle (not shown). That is, the casing 2 is not exposed to the passenger compartment except for the exposed plate 22, that is, the chassis 21 and the upper lid 23. Therefore, each suction port 21e is not exposed to the vehicle compartment where dust may enter from the outside of the vehicle, and the air sucked from each suction port 21e is compared to the case where each suction port 21e is formed in the vehicle cabin. As a result, the amount of dust contained in the air can be reduced, and the amount of dust contained in the air sucked into the housing 24 can be reduced.
  • the upper lid 23 covers the upper surface (not shown) of the chassis 21.
  • the upper lid 23 is made of a metal plate, and locking holes 23a (in this embodiment, two locations) are formed in the vicinity of the exposed plate 22.
  • the upper lid 23 is fixed to the chassis 21 by screwing a fixing means such as a screw to at least one of the side surface portions 21a, b and the rear surface portion 21c of the chassis 21.
  • a hole that communicates the outside with the inside 24 of the housing is not formed as much as possible. If there is a hole that communicates the outside with the inside 24 of the housing, for example, a bracket or rubber is attached to the inside of the housing of the hole, or a screw is screwed together. If a gap is formed between the exposed member exposed from the inside 24 of the housing and the housing 2, a closing member that closes the gap is provided between the exposed member and the housing 2. Seal by placing. For example, as shown in FIG. 7, when a gap is formed between each connector 25 and the opening 21g of the back surface portion 21c, for example, a sponge or rubber is provided between each connector 25 and the back surface portion 21c. Place sealing member 9 such as packing.
  • the housing 2 has a sealed structure in which the portions communicating with the outside except for the disk rod inlet 22a, each suction port 21e, and each discharge port 21f are substantially sealed. Accordingly, the outside air is sucked only from the respective suction ports 21e, passes through the inside of the casing 24, and the force is discharged to the outside only by the discharge port 21f. Therefore, it is possible to suppress the disturbance of the air flow sucked into the housing interior 24. As a result, the air sucked from each suction port 21e can surely pass between the disk rotating device 3 and the control device 5, and the cooling effect by the air passing through the inside of the housing 24 can be sufficiently exhibited. Can do.
  • the disk rotating device 3 rotates a disk (not shown) inserted into the housing interior 24 from the disk insertion port 22a and reads information recorded on the rotating disk.
  • the disk rotating device 3 is not shown in the drawing, and a spindle motor (not shown) for rotating the disk and reading information recorded on the rotating disk.
  • V a pickup device, and a loading device (not shown) for moving a disk inserted in the housing interior 24 to a disk playback position and carrying out the disk positioned at the disk playback position to the outside.
  • the disk rotating device 3 is disposed at a position facing the disk slot 22a in the housing interior 24.
  • the disk rotating device 3 has an outer peripheral surface made of a metal plate, and a surface 3a facing the disk insertion port 22a and a surface (not shown) facing the upper lid 23 are opened without being blocked.
  • the disk rotating device 3 is fixed to the chassis 21 by screwing fixing means such as screws into the side surface portions 21a, b of the chassis 21.
  • the surface 3a facing the disc cage inlet 22a is closed by the exposed plate 22.
  • a surface (not shown) facing the upper lid 23 is closed by a sealing member 6 such as a sponge or rubber packing disposed between the upper lid 23 and the surface.
  • the disk rotating device 3 is disposed in the housing interior 24 in a substantially hermetically sealed manner with respect to the housing interior 24, even if dust is contained in the air sucked from the suction ports 21e, This dust can be prevented from entering the inside of the rotating device 3.
  • the surface of the disk rotating device 3 opposite to the surface (not shown) facing the upper lid 23, that is, the surface B facing the control device 5 is formed substantially flat. Accordingly, the air sucked into the housing interior 24 from each suction port 21 e can smoothly flow toward the respective discharge ports 21 f on the surface B facing the control device 5. As a result, when the disk device 1 is in operation, the heat of the disk rotating device 3 is easily transferred to the air passing through the housing interior 24 via the surface B of the disk rotating device 3 facing the control device 5. Thereby, the disk rotating device 3 can be sufficiently cooled by the air passing through the inside 24 of the housing.
  • openings 3b are formed on the surface B facing the control device 5.
  • a cable 31 extends from each opening 3b to the outside of the disk rotating device 3.
  • Each of the openings 3b communicates with the disk rotating device 3 and the inside of the housing 24.
  • Each opening 3 b is closed by a closing member 32 such as a sheet that can be fixed to the surface B facing the control device 5.
  • Each cable 31 is used to connect the control device 5 that controls each of the devices included in the disk rotating device 3 to the devices. [0047]
  • the disk rotating device 3 rotates the inserted disk to generate an air flow therein.
  • the fan 4 forcibly discharges the air sucked into the housing interior 24 from each suction port 21e from the housing interior 24 through the discharge ports 21f.
  • the fan 4 is composed of a main body part 41 and a rotating part 42.
  • the main body 41 is attached to the inside 24 of the casing so as to face each discharge port 21f of the back surface 21c.
  • the main body 41 is formed with a storage portion 41a. Since the storage portion 41a communicates with each discharge port 21f, the air inside the housing 24 is discharged to the outside through the storage portion 41a and each discharge port 21f.
  • the rotating part 42 is rotatably supported and stored in the storage part 41a.
  • the rotating portion 42 is formed with a plurality of fins 42a (four in this embodiment), and is rotated by a motor (not shown) provided in the rotating portion 42 or the like.
  • a motor not shown
  • the rotating part 42 rotates, the air inside the housing 24 is sucked into the fan 4 by the plurality of fins 42a and is forcibly discharged to the outside through the discharge ports 21f.
  • a pressure difference is generated between the inside 24 of the casing and the outside, outside air is sucked into the casing 24 from each suction port 21e.
  • the control device 5 controls the operation of the disk device 1.
  • the control device 5 is recorded on a rotating disc by a pickup device, not shown by a spindle motor, not shown by the spindle motor, or by a pick-up device, not shown by the spindle motor.
  • Information read control, drive control of a loading device (not shown), and drive control of the fan 4 are performed.
  • the control device 5 is arranged in a position facing the disk rotating device 3 in the housing interior 24.
  • the control device 5 includes a substrate portion 51, a flat member 52, an electronic component group (not shown), a protruding electronic component 53, and a connection connector 54 to which each cable 31 of the disk rotating device 3 is connected. ing.
  • the board portion 51 is for mounting, that is, mounting, the electronic component group (not shown), the protruding electronic component 53, and the connection connector 54, and is formed to have a size that substantially covers the bottom surface portion 21d.
  • An electronic component group (not shown) is mounted on the central portion of the substrate portion 51. This electronic component group protrudes toward the disk rotating device side as compared with the protruding electronic component 53, and is an electronic component.
  • the flat member 52 is made of a metal plate, and is fixed to the substrate unit 51 so as to face the surface B of the disk rotating device 3 facing the control device 5.
  • An electronic component group (not shown) mounted on the central portion is covered with the flat member 52.
  • a surface facing the control device 5, that is, a surface C facing the disk rotating device 3 of the control device 5 is formed substantially flat. That is, therefore, the air sucked into the housing interior 24 from each suction port 21e can smoothly flow toward the respective discharge ports 21f on the surface C facing the disk rotating device 3.
  • the heat of the control device 5 generated by heat generation of an electronic component group (not shown) through the surface C facing the disk rotation device 3 of the control device 5 is generated inside the housing. It becomes easy to be transmitted to the air passing through 24. Thereby, the control device 5 can be sufficiently cooled by the air passing through the inside 24 of the housing. Further, dust can be prevented from adhering to the control device 5 by collecting dust between the electronic components of the electronic component group (not shown). As a result, the malfunction of the disk device 1 can be suppressed.
  • the protruding electronic component 53 is an electronic component that is mounted on the control device 5 and protrudes from the electronic component group (not shown) among the electronic components that protrude toward the disk rotating device.
  • the protruding electronic component 53 is arranged in the vicinity of the end portion of the board portion 51 rather than the central portion where the electronic component group (not shown) is mounted. In other words, the protruding electronic component 53 is located in the vicinity of the end of the board portion 51 at a position that does not hinder the flow of air (arrow A) that is sucked from the suction ports 21e and discharged to the outside from the discharge ports 21f. Has been placed.
  • the air sucked from each suction port 21e can smoothly pass between the disk rotating device 3 and the control device 5. That is, it is possible to suppress the occurrence of a portion where air is trapped between the disk rotating device 3 and the control device 5. Thereby, the cooling effect by the air passing through the housing interior 24 can be sufficiently exerted. Further, as described above, since the disk rotating device 3 is substantially sealed with respect to the inside 24 of the housing, dust can be prevented from entering the inside of the disk rotating device 3. It is possible to suppress the influence of dust flowing into the.
  • the suction port is formed in the vicinity of the exposed plate 22 of the side surface portions 21a, 21b, but the present invention is not limited to this.
  • it may be formed near the side surface portions 21a, b of the bottom surface portion 21d.
  • it may be formed from the bottom surface portion 21d to the side surface portions 21a, b.
  • the side portions 21a and b may be formed outside the vicinity of the exposed plate 22.
  • other suction ports may be formed at positions away from the suction ports 21e!
  • the flat member 52 is made of a metal plate, but the present invention is not limited to this.
  • a sheet that can be fixed to the substrate 51 of the control device 5 or the like may be used.
  • the total area of each suction port 21e which is the area of the suction port, is preferably equal to or greater than the total area of each discharge port 21f, which is the area of the discharge port. If the total area of each suction port 21e is significantly smaller than the total area of each discharge port 21f, the pressure difference between the inside 24 of the casing and the outside during driving of the fan 4 becomes large. Fan 4 has an air resistance as the air pressure in the housing 24 decreases. The resistance decreases and the rotation speed increases. Therefore, if the total area of each suction port 21e is significantly smaller than the total area of each discharge port 21f, there is a possibility that noise due to an increase in the rotational speed of the fan 4 may increase.
  • each suction port 21e is set to be equal to or greater than the total area of each discharge port 21f, it is possible to reduce the pressure difference between the inside 24 of the casing and the outside during driving of the fan 4.
  • the rotation speed of the fan 4 in the same discharge amount can be reduced, and the noise of a fan can be suppressed.
  • the disk insertion port 22a is formed on the front surface of the disk device 1 and the disk is also inserted into the housing interior 24 by the external force.
  • the housing 2 having each suction port 21e for sucking air and each discharge port 21f for exhausting the air sucked into the housing 24 to the outside, and the disk insertion port 22a of the housing 24 facing each other.
  • the disc rotating device 3 is arranged in a substantially sealed manner with respect to the inside 24 of the housing, rotates the disc inserted from the disc insertion port 22a, and reads at least the information recorded on the rotating disc.
  • each suction port 21e and each discharge port 21f are provided with a housing.
  • the air sucked from each suction port 21e passes between the disk rotation device 3 and the control device 5, and is formed at a position where it can be discharged from each discharge port 21f.
  • the disk rotation device 3 and the control device 5 Of these, the part through which air passes has a substantially flat structure along the air flow. Thereby, the cooling effect by the air passing through the inside of the housing can be sufficiently exhibited while suppressing the influence of the dust flowing into the housing.
  • the disk device according to the present invention is useful for a disk device including a fan that forcibly exhausts air from the inside of the housing, and in particular, due to dust flowing into the housing. It is suitable for exerting sufficient cooling effect by air passing through the inside of the housing while suppressing the influence.

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  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

La présente invention concerne des ouvertures d’aspiration (21e) et des ouvertures d’évacuation (21f) qui sont formées dans les parties d’un logement (2) qui permettent à l’air aspiré par les ouvertures d’aspiration (21e) de passer entre un dispositif de rotation de disque (3) et un dispositif de commande (5) et d’être sorti par les ouvertures d’évacuation (21f). Le dispositif de rotation de disque (3) est placé dans (24) le logement de manière sensiblement étanche. Les parties du dispositif de rotation de disque (3) et du dispositif de commande (5), par lesquelles passe l’air, présentent des structures sensiblement planes (la surface (B) située à l’opposée du dispositif de commande (5) et la surface (C) située à l’opposée du dispositif de rotation de disque (3) sont sensiblement planes) le long d’un écoulement d’air. Même si l’air passant dans (24) le logement contient de la poussière, celle-ci entre difficilement dans le dispositif de rotation de disque (3) et l’air aspiré par l’ouverture d’aspiration (21e) peut passer de manière fluide entre le dispositif de rotation de disque (3) et le dispositif de commande (5).
PCT/JP2006/324266 2006-01-06 2006-12-05 Dispositif a disque Ceased WO2007077709A1 (fr)

Priority Applications (2)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8332182B2 (en) 2008-05-27 2012-12-11 Vega Grieshaber Kg Evaluation of an echo shape of filling level sensors
US9001866B2 (en) 2009-11-03 2015-04-07 Unwired Planet, Llc Multi-standard communication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102959629B (zh) * 2011-02-17 2015-12-09 松下电器产业株式会社 光盘驱动装置及布线构造

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08203263A (ja) * 1994-11-21 1996-08-09 Ricoh Co Ltd 記録ディスク駆動装置
JP2003007048A (ja) * 2001-06-22 2003-01-10 Hitachi-Lg Data Storage Inc 光ディスク装置
JP2005293796A (ja) * 2004-04-05 2005-10-20 Funai Electric Co Ltd 光ディスク装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08203263A (ja) * 1994-11-21 1996-08-09 Ricoh Co Ltd 記録ディスク駆動装置
JP2003007048A (ja) * 2001-06-22 2003-01-10 Hitachi-Lg Data Storage Inc 光ディスク装置
JP2005293796A (ja) * 2004-04-05 2005-10-20 Funai Electric Co Ltd 光ディスク装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8332182B2 (en) 2008-05-27 2012-12-11 Vega Grieshaber Kg Evaluation of an echo shape of filling level sensors
US9001866B2 (en) 2009-11-03 2015-04-07 Unwired Planet, Llc Multi-standard communication

Also Published As

Publication number Publication date
CN101331551A (zh) 2008-12-24
JP4652419B2 (ja) 2011-03-16
JPWO2007077709A1 (ja) 2009-06-11
CN101331551B (zh) 2010-09-29

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