JP2004253134A - Recording and/or reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely make a recording and/or reproducing section dustproof and efficiently air-cool the inside of a heat generating part storage section. <P>SOLUTION: A recording and/or reproducing section 12, which records and/or reproduces a disk 2 that is inserted from a disk inserting port 5 of a main body armor 4, is stored in a dustproof case 10 and arranged inside the armor 4. The case 10 and a heat generating part storage section 20 are arranged close to the front side of the armor main body 4 and a heat radiating ventilation port 21 is formed on the front side of the body 4. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a recording and / or reproducing apparatus which is most suitable for applying to a disk apparatus for recording and / or reproducing a recording medium such as an optical disk or a magneto-optical disk, and particularly to a recording and / or reproducing unit having dust prevention. It is related to heat radiation of heat-generating components.

2. Description of the Related Art Conventionally, in a disk device that records and / or reproduces an optical disk, a magneto-optical disk, and the like, a recording and / or reproducing unit in which a disk table, an optical pickup, and the like are arranged is housed in a dust-proof housing and incorporated into an exterior of a main body. An opening / closing lid is attached to the disc insertion slot formed in the front panel of the main unit exterior to protect the recording and / or playback unit from dust. Inside the main unit exterior, heat-generating components are stored at the rear position of the dustproof housing. A heat-generating component storage section is provided to allow cooling air sucked in from the heat-dissipating air vent formed along the lower part of the front panel disk insertion port to bypass the narrow gap at the lower part of the dust-proof housing inside the body exterior and And the air-cooling of the heat-generating components.
JP-A-3-201285

  The problem to be solved is that the cooling air sucked in from the heat-dissipating vent formed along the lower part of the front panel disk insertion hole bypasses the narrow gap at the lower part of the dustproof enclosure inside the main unit exterior and generates heat at the rear. In the case of cooling the heat-generating components by flowing into the component housing, the cooling air cannot efficiently flow into the heat-generating component housing from the heat-dissipating ventilation holes, and the heat-generating component housing can be efficiently air-cooled. There was a problem that it could not be done.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and it is possible to reliably prevent dust from a recording and / or reproducing unit and efficiently air-cool the inside of a heat generating component storage unit. In order to do so, a body exterior provided with a recording medium insertion opening with an open / close lid on the front panel,
A recording and / or reproducing unit that is housed in a dustproof housing and is disposed inside the main body exterior, and that records and / or reproduces a recording medium inserted from the recording medium insertion slot; and is disposed inside the main body exterior. A heat-generating part housing part in which the heat-generating parts are housed, and a heat-dissipating air vent for introducing cooling air into the heat-generating part housing part and air-cooling the heat-generating part housing part, wherein the air is the dustproof housing. And a heat-dissipating air vent disposed in close proximity to the heat-generating component housing so as to be introduced into the heat-generating component housing without bypassing the lower part or the like.

  According to the recording and / or reproducing apparatus of the present invention, the recording and / or reproducing unit can be housed in the dust-proof housing to reliably prevent dust, and can be disposed close to the heat-generating component housing arranged in the exterior of the main body. The cooling air introduced through the heat-dissipating ventilation holes formed on the exterior of the main body is introduced into the heat-generating component housing without bypassing the lower part of the dust-proof housing, etc., and the heat-generating components in the heat-generating component housing are efficiently and air-cooled. be able to.

  The purpose of improving the efficiency of introducing the cooling air introduced from the heat-dissipating ventilation holes into the heat-generating component storage unit is to dispose the dust-proof housing and the heat-generating component storage unit close to the front side of the exterior main body, Is formed on the front side of the exterior body.

  The purpose of efficiently introducing cooling air from the ventilation holes for heat dissipation was realized by forming the front panel of the exterior body to be horizontally long and wide.

  Hereinafter, an embodiment of a dustproof device for a disk device to which the present invention is applied will be described with reference to the drawings.

  First, in an example of a recording / reproducing apparatus, the disk device 1 records and / or reproduces a disk 2 such as an optical disk or a magneto-optical disk as an example of a recording medium. The disk 2 is housed in a disk cartridge 3. It has been used. The disc 2 has a center hole 2a.

  The substantially rectangular body exterior 4 of the disk device 1 is attached to a plurality of horizontal and vertical chassis 40 made of a thick sheet metal or the like, and is attached to the outer periphery of the chassis 40 with screws or the like. An exterior plate 41 made of a thin metal plate or the like, a front panel 42 formed of synthetic resin or the like and attached to the front side of the chassis 40 with screws or the like, and attached to the bottom of the chassis 40 with screws or the like. And four legs 43 made of rubber or the like.

  On the front panel 42 of the body exterior 4, a horizontally long and horizontal disk insertion slot 5 which is a recording medium insertion slot is formed. However, the disc insertion slot 5 is formed so as to be slightly shifted to one side from the center position of the front panel 42 in the left-right direction.

  On the outside of the front panel 42, an opening / closing lid 6 for opening and closing the disk insertion slot 5 is attached.

  As shown in FIGS. 5 and 6, this opening / closing lid 6 is made of synthetic resin or the like, and is vertically moved in FIGS. 5 and 6 around a pair of left and right fulcrum shafts 7 provided on the lower end side. It is attached so as to be rotatable in the directions indicated by arrows a and b. The opening / closing lid 6 is rotationally urged by a torsion coil spring 8 as urging means in a direction of an arrow a which is a lid closing direction. A substantially rectangular ring-shaped packing 9 made of rubber or the like is attached along the end surface of a horizontally long rectangular rib 6a integrally formed on the back side of the opening / closing lid 6 by bonding or the like. . The packing 9 is pressed against the outer periphery of the disc insertion port 5 in the direction of arrow a by the spring force of the torsion coil spring 8 on the outer surface 42a of the front panel 42, thereby sealing the disc insertion port 5 from the outside.

  Here, the opening / closing lid 6 is attached to the outer side surface 42a of the front panel 42 in an outward opening manner, but the opening / closing lid 6 is attached to the inner side surface 42b of the front panel 42 in the same manner as this. Alternatively, an open / close lid may be attached to the outside surface 42a and the inside surface 42b of the front panel 42 so as to be double inside and outside.

  Next, a dustproof case 10 having a substantially rectangular shape smaller than the body exterior 4 is horizontally arranged inside the body exterior 4. However, the dustproof housing 10 is displaced in two directions, that is, the front panel 42 side and one side (leftward and downward in FIG. 1A) inside the main body exterior 4 in accordance with the disk insertion slot 5. It is located at the specified position.

  The dustproof housing 10 includes a mechanical chassis 100 made of aluminum die cast or the like, and a housing 101 formed of a thin metal plate or the like attached to the upper portion of the mechanical chassis 100 by screws or the like with a plurality of set screws 102. This seals the upper and lower surfaces, the left and right surfaces, and the back surface. The dustproof housing 10 has a front surface 101a, which is a front side of the housing 101, and has a horizontally long opening 11 opposed to the disk insertion opening 5 of the front panel 42.

  Further, a recording and / or reproducing unit 12 for recording and / or reproducing the disk 2 is accommodated in the dustproof case 10. The recording and / or reproducing unit 12 includes a spindle 13 and a disk table 14 for rotating the disk 2, a spindle motor 15 for integrally rotating the disk 13, an optical pickup and an external magnetic field head as needed. And a loading and ejecting mechanism 16 for loading and ejecting the disc 2 to and from the spindle and the disc table 14 in the dustproof housing 10 by the disc cartridge.

  A floating structure in which four lower corners of the mechanical chassis 100 of the dustproof case 10 are elastically supported on the upper part of the chassis 40 of the main body exterior by four dampers 17 is employed, and the vibration damping function of the entire dustproof case 10 is improved. Provided.

  At this time, as shown in FIG. 7, these four dampers 17 are formed, for example, in a shape in which a substantially hemispherical damper main portion 17a and a lower flange 17b are integrally formed by an elastic member such as rubber. I have. Then, the lower flange 17b is horizontally mounted on the chassis 40 by a pair of stoppers 170 such as snap pins, and the damper contact portions 100a formed at the four lower corners of the mechanical chassis 100 are placed on the damper main portion 17a. I have. Then, a set screw 171 vertically inserted into the damper contact portion 100a from above is screwed into a nut 172 which is integrally insert-molded on the top of the damper main portion 17a and fixed.

  Therefore, even if the chassis 40 vibrates in the horizontal and vertical directions due to external vibrations applied to the main body exterior 4, the external vibrations are absorbed by the four dampers 17, so that the anti-vibration function of the entire dustproof housing 10 is obtained. Can be The damper 17 can be of various shapes.

In order to obtain the vibration-proof function of the dust-proof casing 10 as a whole, the front face 10a, the rear face 10b, and the left and right sides of the dust-proof casing 10 are so arranged that the dust-proof casing 10 does not collide with the inner wall of the main body exterior 4 due to external vibration or the like. Sufficient gaps G ₁ , G ₂ , G _3, and G ₄ between the side surfaces 10c and the upper surface 10d and the front inner wall surface 4a, the rear inner wall surface 4b, the left and right inner wall surfaces 4c, and the upper inner wall surface 4d of the body exterior ₄ Must be formed.

However, the front side of the gap G ₁ be disposed opening 11 of the dust proofing box 10, dust-proof function of the dust proofing box 10 is reduced.

Therefore, the outer periphery of the disk insertion slot 5, the front 10a of the dust proofing box 10, is attached a dustproof member 18 capable of sealing a front side of the gap G ₁ that exists between the front inner wall surface 4a of the body armor 4 .

  The dustproof member 18 is formed in a substantially square ring shape by a member having dustproofness and flexibility, such as neoprene sponge, malt precious sponge, rubber, and filter paper.

Then, as shown in FIGS. 5 and 6, for example, the dustproof member 18 is held by a substantially rectangular ring-shaped dustproof member holding rib 19 formed on the outer periphery of the opening 11 on the front surface 101a of the housing 101 of the dustproof housing 10. so as to, the dustproof member 18 in the front inside the gap G _1, is disposed on the outer periphery of the disk insertion slot 5. Then, both the front and rear end surfaces 18a and 18b of the dustproof member 18 are elastically formed on both the substantially square ring-shaped rib 42c formed integrally with the inner side surface 42b of the front panel 42 and the front surface 101a of the casing 101, and It is crimped with low contact force.

  At this time, if necessary, the dustproof member 18 may be bonded to the dustproof member holding rib 19, the front surface 101a, or the like, or the dustproof member holding rib 19 may be integrally formed on the inner side surface 42b of the front panel 42. Thus, the front and rear ends of the dustproof member 18 may be held by a pair of dustproof member holding ribs 19.

  As a result, as shown by hatching in FIGS. 1A and 1B, the entire inside of the dustproof casing 10 connected through the opening 11 to the disc insertion slot 5 having the open / close lid 6 is completely sealed by the dustproof member 18. As a result, an extremely high dustproof function of the recording and / or reproducing unit 12 can be obtained.

  However, since the dustproof member 18 has flexibility and is in contact with the front panel 42 and the housing 101 with low contact force, the vibration damping function of the entire dustproof housing 10 by the four dampers 17 is slightly reduced. Also does not interfere.

  Note that a structure in which the dustproof case 10 is fixed on the chassis 40 and the recording and / or reproducing unit 12 in the dustproof case 10 is allowed to float on the mechanical chassis 40 via the plurality of dampers 17 can also be adopted. . Then, at this time, the dustproof housing 10 itself does not need to have the dustproof function, so that the flexibility of the dustproof member 18 is not particularly required.

  At the time of loading the disk 2, as shown in FIG. 6, the opening / closing lid 6 is rotated in the direction of arrow b against the torsion coil spring 8 to open the disk insertion slot 5. Then, the disc cartridge 3 is inserted horizontally into the loading and ejecting mechanism 16 of the recording and / or reproducing unit 12 in the dustproof case 10 from the disc insertion opening 5 through the opening 11 in the direction of arrow c. Then, as shown in FIGS. 2 and 4, the loading and ejecting mechanism 16 pulls the disk cartridge 3 horizontally into the dustproof casing 10 in the direction of arrow c, and then lowers it vertically in the direction of arrow d, and the disk cartridge 3 is moved downward. The disk 2 in the cartridge 3 is inserted into the spindle 13 by the center hole 2a and mounted horizontally on the disk table 14.

  Therefore, as shown in FIG. 5, the opening / closing lid 6 is rotated in the direction of arrow a by the torsion coil spring 8, the disc insertion slot 5 is sealed from the outside by the packing 9, and the entire inside of the dustproof casing 10 is completely sealed.

  Then, the disk 2 is rotationally driven integrally with the spindle 13 and the disk table 14 by the spindle motor 15 of the recording and / or reproducing unit 12, and a desired optical disk 2 is used by using an optical pickup and an external magnetic field head if necessary. Recording and / or reproduction.

  During recording and / or reproduction of the disc 2, the entire inside of the dustproof case 10 is completely sealed, so that entry of dust and the like into the recording and / or reproduction unit 12 can be completely prevented. Therefore, the output does not decrease at all due to the attachment of dust or the like to the disk 2, and the recording and / or reproducing characteristics of the disk 2 can be remarkably improved.

  When ejecting the disc 2 after recording and / or reproducing the disc 2, the opening / closing lid 6 is opened in the direction of arrow b as shown in FIG. 6, and loading and ejecting is performed as shown in FIGS. After the disk cartridge 3 is lifted vertically in the direction of arrow e by the mechanism 16 to detach the disk 2 from the spindle 13 and the disk table 14, the disk cartridge 3 is removed from the dustproof housing 10 through the opening 11 and the disk insertion port 5. It is discharged horizontally outside the front panel 42 in the direction of arrow f.

  By the way, when the heat-generating components are housed in the dust-proof case 10 by completely sealing the inside of the dust-proof case 10, heat is trapped in the dust-proof case 10.

  Therefore, as shown in FIGS. 1 to 4, the dustproof housing 10 is biased in two directions, that is, the front panel 42 side and one side (leftward and downward in FIG. 1A) inside the main body exterior 4. The heat-generating component housing portion 20 surrounded by the inner partition wall 44 and the other side (the upper side in FIG. 1) of the inner partition 44 and the outer plate 41 is formed outside the dustproof housing 10 inside the main body exterior 4. A heat generating component (not shown), which is a heat generating source such as a power supply circuit or an amplifier, is stored in the heat generating component storage section 20.

Then, are formed in wide in landscape along just connected through the front side of the gap G ₁ to the heat generating component housing portion 20, the heat radiating ventilation holes 21 of Yoroiita shape at the bottom of the cover 6 of the front panel 42 .

  As a result, it is possible to prevent the heat generated from the heat-generating components in the heat-generating component storage portion 20 from being trapped inside the dustproof housing 10 and to use the horizontally long and wide heat-dissipating vent 21 to store the heat-generating components. The inside of the section 20 can be efficiently cooled by air.

  As described above, one embodiment of the present invention has been described, but the present invention is not limited to the above-described embodiment, and various modifications can be made based on the technical idea of the present invention.

  For example, in the above embodiment, a disk cartridge type disk device is shown as an example of the recording / reproducing device. However, a tray type disk device for loading and ejecting a bare disk by a tray may be used.

  This recording / reproducing apparatus is applicable to a recording / reproducing apparatus for recording and / or reproducing various recording media such as a disk-shaped recording medium and a tape-shaped recording medium.

FIG. 1A is a schematic plan view of an entire disk device for explaining an embodiment of the present invention, and FIG. 1B is a schematic side view of FIG. 1A. It is an expanded sectional side view in the AA arrow of (A) of FIG. FIG. 2 is an enlarged front view as viewed in the direction of arrows BB in FIG. FIG. 2 is an enlarged cross-sectional side view taken along the line CC of FIG. FIG. 4 is an enlarged cross-sectional side view taken along the line DD of FIG. 3 for explaining a mounting structure of a dustproof member of the disk device. FIG. 6 is an enlarged sectional side view showing an open state of the open / close lid of FIG. 5. FIG. 7A is an enlarged cross-sectional side view of the structure of the damper, taken along line EE of FIG. 1A, and FIG. 7B is a sectional view of FIG. FIG. 4 is a cross-sectional plan view as viewed from the arrow -F.

Explanation of reference numerals

1 Disk device (recording / reproducing device)
2 disk (recording medium)
Reference Signs List 4 body exterior 40 body exterior chassis 41 body exterior exterior plate 42 body exterior front panel 44 body exterior exterior partition 5 disk insertion slot (recording medium insertion slot)
6 Opening / closing lid 7 Support shaft 8 Torsional coil spring (biasing means)
Reference Signs List 9 packing 10 dustproof case 100 dustproof case mechanical chassis 101 dustproof case case 101a front surface of dustproof case case 11 opening of dustproof case 12 recording and / or reproducing unit 17 damper 18 dustproof member 19 rib for holding dustproof member 20 the gap between the front surface and the body outer front panel of the heat generating component housing 21 for heat dissipation vents G ₁ dustproof housing

Claims (3)

A body exterior in which a recording medium insertion opening with an opening / closing lid is provided on a front panel,
A recording and / or reproducing unit that is housed in a dustproof housing and is disposed inside the main body exterior, and records and / or reproduces a recording medium inserted from the recording medium insertion port;
A heat-generating component storage portion that is arranged inside the main body exterior and stores a heat-generating component;
A heat-dissipating air vent for introducing cooling air into the heat-generating component housing and air-cooling the heat-generating component housing, wherein the air does not bypass the lower part of the dust-proof housing or the like. A recording and / or reproducing apparatus, comprising: a heat-dissipating air vent disposed in close proximity to the heat-generating component storage section so as to be introduced into the heat-generating component storage section. The dustproof housing and the heat-generating component housing are arranged close to the front side of the exterior body,
2. The recording and / or reproducing apparatus according to claim 1, wherein the heat-dissipating vent is formed on a front side of the exterior body. 3. The recording and / or reproducing apparatus according to claim 2, wherein the heat-dissipating vent is formed in the front panel in a horizontally long and wide width.

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