JP2005063534A - Disk recording and/or reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem wherein there is the possibility of mulfunction or the like caused by a heat effect on a table rotary device, an optical pickup device or the like due to the heat generated by the operation of an electronic component or the like which is mounted on a printed circuit board. <P>SOLUTION: A fluid passage 96, having an inlet formed in a bottom surface and an outlet in an upper surface, is disposed in an exterior case 7, and a fan 97 is disposed in the fluid passage 96. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a disk recording and / or reproducing apparatus capable of recording and / or reproducing information signals with respect to a disk-shaped recording medium, and particularly to an imaging apparatus that uses the disk-shaped recording medium as an information storage medium. The present invention relates to a disk recording and / or reproducing apparatus having a heat source in an outer case.

  As a conventional disk recording and / or reproducing apparatus using a disk-shaped recording medium as a storage medium, for example, there is one described in Patent Document 1. Japanese Patent Application Laid-Open No. 2004-133867 discloses a patent application previously filed by the applicant of the patent, and relates to a cooling structure for an electronic device in consideration of soundproofing such as a cooling fan and a hard disk.

  In the electronic device cooling structure described in Patent Document 1, in an electronic device having a heating element and a noise generation source in a housing, a cooling air introduction port opened on a side surface or a rear surface of the housing or in the vicinity thereof, and A cooling fan positioned at a position where the cooling air from the inlet of the cooling air is guided to the front surface in the housing and flows to the rear surface, and the cooling air flow path formed by the cooling fan The heat generating element is disposed in the structure.

  According to the electronic apparatus having such a configuration, even when the hot air discharge port in the housing is on the rear surface or in the vicinity thereof, the cooling air flow path from the side surface or rear surface of the housing to the front surface by the arrangement of the cooling fan. The cooling air is introduced to the front to create a flow of air from the front to the rear, so that the cooling effect can be maintained and the opening is lost at or near the front of the chassis. Therefore, it can be expected that noise generated inside can be reduced from leaking outside the front surface.

  Another example of this type of conventional disk recording and / or reproducing apparatus is that described in Patent Document 2, for example. Japanese Patent Application Laid-Open No. 2004-133867 discloses that heat generated by a heat generating component such as a power source does not act on a heat-sensitive component such as an optical component disposed in a disk device main body or a housing so as to radiate heat from the heat generating component satisfactorily. The heat dissipation structure in the disk device and the heat dissipation structure in the housing are described.

  The heat radiating structure in the disk device described in Patent Document 2 forms a chimney-shaped heat radiating space formed of a heat insulating material for disposing heat-generating parts such as a power source on the side of the disk device main body. The heat generating component is arranged on the upper side of the inside, and from the air suction port formed on the side wall of the disk device main body through the disk device main body toward the exhaust port provided above the heat radiation space from the inside of the heat radiation space. It is configured so that air flows, and is configured so that heat generated by the heat generating portion does not affect heat-sensitive components such as optical components in the disk device main body.

  According to the heat dissipation structure in the disk device having such a configuration, it is possible to separate the heat-generating component and the heat-sensitive component without using a heat dissipation fan or the like by using air convection. It is expected that effects such as good heat dissipation and cost reduction can be expected (paragraphs [0015] to [0019] in the specification).

However, in the case of the electronic device cooling structure described in Patent Document 1, a cooling air inlet and a cooling fan are provided in the casing of the electronic device, and the cooling air is introduced into the casing from the inlet. Mixing with air, taking the heat from the heating element with the mixed air and exhausting it to the outside, the temperature inside the heating element and the casing is kept below a predetermined temperature.
Further, in the case of the heat dissipation structure in the disk device described in Patent Document 2, a chimney-shaped heat dissipation space formed of a heat insulating material is provided in the disk device main body, a heat generating component is disposed in the heat dissipation space, and an optical component or the like. The heat-sensitive parts are isolated from the heat-generating parts.

  In such a conventional cooling structure of an electronic device or a heat dissipation structure in a disk device, a certain effect can be expected when the volume of the electronic device or the like is large or the temperature difference between the heating element and its surroundings is large. However, since it is necessary to secure a space part of a certain size for a heat radiation space or the like, it is difficult to reduce the size of an electronic device or the like. That is, when the volume of the electronic device or the like is small and the whole is saturated with temperature, there is a problem that the cooling effect cannot be expected with the internal heat sink.

Further, if a heat pipe, a heat radiating sheet, or the like is provided to directly transfer the heat of the heating element to the outer case, the outer case may become too hot. In this case, it is possible to make a ventilated structure by making a hole in the outer case, but in that case, garbage or water will enter from the hole, so in electronic devices such as video camera recorders that are often used outdoors. It was impossible to make a hole in the outer case.
JP 2003-151255 A Utility Model Registration No. 3087597

  The problem to be solved is that the table rotation device, the optical pickup device, etc. are affected by heat based on the heat generated by the operation of the electronic components mounted on the printed circuit board, which may cause malfunction. Is a point.

  The invention according to claim 1 of the present application is a table rotating device that rotationally drives a disc-shaped recording medium that is detachably mounted, and information signal recording on the disk-shaped recording medium that is rotationally driven by the table rotating device. And / or a pickup device that performs reproduction, a table rotating device and a printed circuit board on which a control circuit for driving and controlling the pickup device is mounted, and an exterior case that houses the table rotating device, the pickup device, and the printed circuit board. The main feature of the disk recording and / or reproducing apparatus provided is that the exterior case is provided with a fluid passage having both ends opened on one side or two sides, and a fan is provided in the fluid passage.

  In the invention according to claim 2 of the present application, the disk recording and / or reproducing apparatus has a solid-state image sensor that can obtain an image corresponding to a subject by light input through the lens device. The image pickup apparatus is characterized in that the obtained image can be recorded on a disk-shaped recording medium.

  In the invention according to claim 3 of the present application, the imaging device has a display device capable of displaying an image obtained by the solid-state imaging device, and the display device includes an image supplied from the solid-state imaging device and a disk shape. An image read from a recording medium can be selectively or divided and displayed simultaneously.

  The invention according to claim 4 of the present application is characterized in that the fluid passage has an inlet at one end opened at the lower surface of the outer case and an outlet at the other end opened at the upper surface of the outer case.

  The invention according to claim 5 of the present application is characterized in that the fluid passage is provided with a drainage channel for guiding water that has entered from the discharge port to the suction port and discharging it to the outside.

  The invention according to claim 6 of the present application is characterized in that the fluid passage is formed by a duct member made of a heat conductor.

  The invention described in claim 7 of the present application is characterized in that fins are provided on the inner surface or the outer surface of the fluid passage.

  The invention described in claim 8 of the present application is characterized in that an uneven portion that forms a gap between the exterior case and the outer surface is provided outside the suction port of the fluid passage.

  According to the invention described in claim 1 of the present application, since the fluid passage having both ends opened on one or two sides is provided in the exterior case and the fan is provided in the fluid passage, the exterior case is passed through the fluid passage. By flowing cooling air from the outside to the outside, the heat in the outer case can be discharged from the fluid passage to the outside. As a result, the heat generated by the heat source in the exterior case is dissipated to the outside, preventing or suppressing the table rotating device and the pickup device from being affected by heat and becoming hot, making the table rotating device etc. more than necessary. It is possible to prevent or suppress the malfunction due to the high temperature and the deterioration of the rotation efficiency.

  According to the invention described in claim 2 of the present application, since the solid-state imaging device that provides an image corresponding to the subject by light input through the lens device is provided, the disk recording and / or reproducing device is An image obtained by the solid-state imaging device can be configured as an imaging device capable of recording on a disk-shaped recording medium. Thereby, the heat generated by the operation of the electronic component mounted on the printed circuit board can be radiated to the outside, and the table rotating device, the pickup device, etc. are prevented or suppressed from being heated due to the thermal effect, It is possible to prevent or suppress the table rotating device or the like from becoming unnecessarily high temperature and causing malfunction or deterioration of rotation efficiency.

  According to the invention described in claim 3 of the present application, since the display device is provided in the imaging device, the image supplied from the solid-state imaging device and the image read from the disk-shaped recording medium can be selectively or It can be divided into screens and displayed at the same time, and those images can be visually recognized and known.

  According to the invention described in claim 4 of the present application, since the suction port of the fluid passage is opened on the lower surface of the outer case and the discharge port is opened on the upper surface of the outer case, cold air is discharged from the lower surface of the suction port. By sucking and discharging hot air from the exhaust port on the upper surface, the heat of the heat generation source in the outer case can be radiated to the outside and the temperature of the heat generation source can be lowered.

  According to the invention described in claim 5 of the present application, since the drainage channel is provided in the fluid passage, the rainwater entering from the drainage port is guided from the drainage channel to the suction port, and rainwater is discharged from the suction port to the outside by its own weight. It is possible to prevent rainwater from entering the outer case.

  According to the invention described in claim 6 of the present application, since the fluid passage is formed by the duct member which is a heat conductor, the heat of the heat source can be easily transmitted to the fluid passage through the duct member. .

  According to invention of Claim 7 of this application, since it was set as the structure which provides a fin in the inner surface or outer surface of a fluid passage, it can thermally radiate still more efficiently.

  Further, according to the invention described in claim 8 of the present application, since the uneven portion is provided on the outside of the suction port of the outer case, the fluid passage is provided even when the imaging device is attached to a tripod or placed on a desk. The intake by can be secured and heat can be dissipated.

  The purpose of radiating the heat generated from the heat generation source in the outer case to the outside is realized by a simple structure by providing a fluid passage having both ends opened in the outer case and a fan in the fluid passage.

  1 to 13 show an embodiment of the present invention. 1 to 4 are diagrams of an imaging apparatus showing an embodiment of the disk recording and / or reproducing apparatus of the present invention, FIG. 5 is a perspective view of the imaging apparatus with the substrate side panel removed, and FIG. FIG. 7 to FIG. 9 are assembly drawings of the partition wall and the disk drive device of the imaging apparatus, FIG. 10 is a perspective view of the partition wall, and FIGS.

  An imaging apparatus 1 shown in FIG. 1 and the like shows an embodiment of a disk recording and / or reproducing apparatus, and uses a DVD (Digital Versatile Disc) as a specific example of a disk-shaped recording medium that is an information storage medium. An optical image is converted into an electrical signal by a CCD (solid-state imaging device) and recorded on a DVD or displayed on a display device such as a liquid crystal monitor (hereinafter referred to as “disk type imaging device”). is there. However, the disc-shaped recording medium of the present invention is not limited to a DVD, and a CD-ROM or other recordable optical disc can be used, for example, a magneto-optical disc, a magnetic disc, etc. In addition, a disc-shaped recording medium of another recording method can be applied.

  As shown in FIGS. 1 to 6, the disk-type imaging device 1 includes a disk drive device 3 that performs recording (writing) and reproduction (reading) of an information signal by rotationally driving a DVD 2 that is detachably mounted; A printed circuit board 4 provided with a control circuit for controlling the drive of the disk drive device 3, a lens device 6 that takes an image of a subject as light and guides it to the CCD 5, and an exterior case in which the disk drive device 3 and the like are stored 7, a disk lid 9 that is rotatably attached to the exterior case 7 and can cover the disk storage portion 8 so that it can be opened and closed, a partition wall 10 that divides the interior of the exterior case 7 into two chambers, and the like. It is configured.

  The outer case 7 is disposed in front of and behind the lens device 6 in the optical axis direction of the disk side panel 12 and the substrate side panel 13 combined so as to sandwich the disk drive device 3 and the like from both sides, and is combined with both the panels 12 and 13. It consists of a front panel 14 and a rear panel 15, and these form a hollow housing. The lens device 6 is fixed to the upper part of the exterior case 7, and the objective lens 16 penetrates the upper part of the front panel 14 forward and is exposed to the front surface. In the exterior case 7, a CCD 5 is disposed behind the lens device 6, and a viewfinder 17 is disposed behind the CCD 5.

  The viewfinder 17 is exposed at the upper part of the outer case 7 and is configured to be able to turn the rear part up and down with the front side as the turning center. As a result, the viewfinder 17 can be adjusted to an arbitrary angle within a predetermined angle range from a horizontal state parallel to the optical axis of the lens device 6 to an upward state in which the rear portion is lifted upward. Furthermore, an accessory shoe 18 to which a video light, an external microphone, and the like are detachably attached is attached to the front side of the viewfinder 17 on the top of the exterior case 7. A stereo microphone 20 is incorporated below the lens device 6 on the front panel 14.

  As shown in FIGS. 2 and 4, a battery housing portion 22 to which the power battery 21 is detachably attached is provided at a substantially central portion of the rear panel 15 of the exterior case 7. The battery housing part 22 is opened on the upper surface and the rear surface of the outer case 7, and the power battery 21 can be inserted and removed from the rear obliquely upward. Further, the rear panel 15 is provided with two mounting brackets 25 for hanging straps. Of the two mounting brackets 25, one mounting bracket 25 is disposed at the upper portion on the right side, and the other mounting bracket 25 is disposed at the lower portion on the left side.

  As shown in FIGS. 3 and 4, a display device 27 is attached to the substrate side panel 13 of the outer case 7 so that the posture can be changed. The display device 27 includes a flat liquid crystal monitor 28, a panel case 29 in which the liquid crystal monitor 28 is accommodated, and a panel support mechanism 30 that supports the panel case 29 with respect to the exterior case 7 so that the posture can be changed. Has been.

  The panel support mechanism 30 has a horizontal rotation function that allows the panel case 29 to rotate approximately 90 degrees in the horizontal direction with the vertical axis as the rotation center, and the panel case 29 in the front-rear direction with the horizontal axis as the rotation center. It has a front / rear rotation function that can be rotated at a time. Accordingly, the display device 27 moves the panel case 29 from the storage state shown in FIG. 3, the state in which the panel case 29 shown in FIG. A state in which the liquid crystal monitor 28 is turned forward by rotating 180 degrees can be selectively taken.

  Further, the board side panel 13 has an inner operation portion 32 made up of a large number of operation buttons covered with a panel case 29 so as to be freely opened and closed, and an outer upper operation portion 33 made up of a number of operation buttons arranged above the panel case 29. In addition, an outer front operation unit 34 including a plurality of operation buttons and an operation dial disposed in front of the panel case 29 is provided. Reference numeral 35 shown in FIG. 3 and the like is a panel lock mechanism that locks the panel case 29 in a closed state.

  As shown in FIG. 1, the disk side panel 12 of the outer case 7 is provided with a disk storage chamber 8 having an opening for exposing a part of the disk drive device 3. A table rotating device of the disk drive device 3 is disposed at a substantially central portion of the disk storage chamber 8, and the disk drive device 3 is supported by the outer case 7 in this state. The disc storage chamber 8 is configured to be opened and closed by a disc lid 9.

  The disc lid 9 has a shape that matches the shape of the disc storage chamber 8, and includes a flat portion 9 a that covers the flat side of the disc storage chamber 8, and a side surface of the disc storage chamber 8 that is continuous with a part of the flat portion 9 a. It has the side part 9b which covers a notch part. Further, a pair of bearing portions 9c, 9c are provided on both sides of the lower end of the disk lid 9, and a support shaft 38 is rotatably inserted into these bearing portions 9c, 9c. Both ends of the support shaft 38 protrude outward from the respective bearing portions 9 c, and the protruding ends are fixed to the disk side panel 12. Thus, the disc lid 9 is rotatably supported on the disc side panel 12 via the support shaft 38.

  A torsion spring 39 is mounted on the support shaft 38, and a spring piece at one end of the torsion spring 39 is locked to the disk lid 9, and a spring piece at the other end is locked to the disk side panel 12. As a result, the disk lid 9 is constantly urged in the direction to open the disk storage chamber 8 by the spring force of the torsion spring 39. Further, a link mechanism 40 that restricts the opening amount of the disk lid 9 is spanned between the disk lid 9 and the disk side panel 12. The link mechanism 40 includes a lid-side link 41 that is rotatably supported by the disk lid 9 and a panel-side link 42 that is rotatably supported by the disk-side panel 12. Are rotatably connected to each other.

  The disc lid 9 is configured to be lockable in a state in which the disc storage chamber 8 is closed by a lid lock device 44 disposed at a portion farthest from the support shaft 38. The lid lock device 44 includes a lock member that is fixed to the disk lid 9 and does not appear in the figure, an operation member 51 that is slidably attached to the disk side panel 12, a slide member, and the like. While the lock member is provided with a lock claw, the slide member is provided with a claw stopper that can be engaged with the lock claw. The claw stopper of the slide member is arranged on the movement trajectory of the lock claw by the spring force of the spring member.

  Thus, by pressing the disc lid 9 against the disc-side panel 12 side, the lock claw engaged with the claw stopper moves the slide member against the spring force of the spring member. As a result, the claw stopper gets over the lock claw, and the claw stopper and the lock claw are engaged with each other. As a result, the disc storage chamber 8 is closed by the disc lid 9, and the disc lid 9 is locked to the disc side panel 12. This unlocking can be performed by sliding the operation member 51 in the unlocking direction against the spring force of the spring member.

  A hand strap 60 is attached to the disk side panel 12 so as to surround the disk lid 9. The hand strap 60 supports a portion of a user's hand that grips the disc lid 9 portion, which is a grip portion of the outer case 7, and prevents the disc-type imaging device 1 from being removed.

  The hand strap 60 includes a support belt 61 having both ends fixed to the disk-side panel 12 and a protective pad 62 that is attached to the support belt 61 and comes into contact with the back of the user's hand. One end of the support belt 61 is fixed to a mounting bracket 63 fixed to the front lower portion of the disk side panel 12, and the other end is inserted inside through a through hole provided in the rear middle part of the disk side panel 12. It is being fixed to the mounting bracket provided in.

  As shown in FIG. 2 and the like, a power switch 64, a recording button 65, and a mode switching dial 66 are arranged in the middle of the rear side of the disk side panel 12. A shutter button 67 and a zoom lever 68 are arranged on the upper rear side of the disk side panel 12. A recess 12a is set between the zoom lever 68 of the disk side panel 12 and the operation member 51, and a discharge port 70 opened to the recess 12a is provided. The discharge port 70 forms one opening of a duct described later. A suction port 71 that forms the other opening of the duct is provided at the lower portion of the disk side panel 12 corresponding to the discharge port 70 (see FIG. 6).

  As a material of the outer case 7 having such a configuration, for example, ABS (acrylonitrile, butadiene, styrene resin) is preferable, but other engineering plastics can be applied, as well as aluminum alloys other than synthetic resins, etc. These metals can also be used.

  As shown in FIGS. 5 and 6, the interior of the exterior case 7 described above is partitioned in the left-right direction (direction intersecting with the optical axis of the lens device 6) by the partition wall 10, and the first on the disk drive device 3 side. A chamber 72 and a second chamber 73 on the printed circuit board 4 side are provided. The partition wall 10 has a shape as shown in FIG. 10, is formed of a plate-like member, and is fastened and fixed inside the outer case 7 by fixing means such as screws. The partition wall 10 serves as a frame, and a plurality of support projections 74 (four in this embodiment) for supporting the disk drive device 3 are provided on one side, and a printed circuit board is provided on the other side. A number of support pieces 75 for supporting 4 and the like are provided.

  Furthermore, the partition wall 10 is provided with openings 10a and notches 10b at a plurality of locations for reducing the weight. As a material of the partition wall 10, for example, stainless steel (SUS) is suitable, but it is possible to use steel steel, aluminum alloy and other metals, and engineering plastics other than metals can also be used. Note that most of the opening 10a and the notch 10b have a structure in which the first chamber 72 and the second chamber 73 are separated from each other so that heat is not easily transmitted. Yes.

  That is, an insulating plate 11 having a predetermined shape and structure is overlaid on one surface of the partition wall 10 so as to cover substantially the entire partition wall 10 as shown by a lattice pattern in FIGS. 5 and 7 to 9. It is constructed integrally. Further, in order to electrically connect the disk drive device 3 disposed in the first chamber 72 and the printed circuit board 4 disposed in the second chamber 73, the insulating plate 11 has a communication hole through which a flexible wiring board is inserted. 76 is provided.

  As a means for fixing the insulating plate 11 to the partition wall 10, for example, a method of screwing using a plurality of fixing screws is suitable, but other methods such as bonding with an adhesive or fixing with screws are also used. Various fixing means can be used. As a material of the insulating plate 11, for example, ABS which is light and excellent in heat insulation is suitable, but other engineering plastics can be applied, and ceramics, new ceramics, and the like can also be used.

  As shown in FIG. 6, the disk drive device 3 is elastically supported on the surface of the partition wall 10 on which the insulating plates 11 are overlapped via an insulator 77 made of an elastic body. The insulator 77 is made of a rubber-like elastic body formed in a cylindrical shape, and an annular groove 77a that is continuous in the circumferential direction is provided in an axially intermediate portion of the outer peripheral surface thereof.

  A predetermined number (4 in the present embodiment) of the insulators 77 are annularly formed in the notch holes provided in the four insulator receiving portions 80a and the insulator receiving pieces 80b of the mechanical chassis 80 made of the conductor of the disk drive device 3, respectively. It is mounted by fitting the groove 77a. These four insulators 77 are respectively fitted to four support pins 74 protruding from one surface of the partition wall 10. Each support pin 74 includes a support portion 74a having a diameter similar to that of the insulator 77 and a projection 74b protruding from the center portion of the support portion 74a, and is fixed to the partition wall 10 by fixing means such as caulking. Has been.

  The four insulators 77 are respectively attached to the support pins 74 by fitting the center holes of the insulators 77 into the protrusions 74 b of the support pins 74. The insulators 77 are prevented from falling off by the mounting screws 78 screwed into the tips of the protrusions 74b of the support pins 74. The mechanical chassis 80 elastically supported by the partition wall 10 through the insulator 77 is constituted by a frame-like member having a sufficiently large strength. The partition wall 10 and the mechanical chassis 80 are electrically connected to each other by a grounding member (not shown) having excellent electrical conductivity.

  Further, as shown in FIGS. 6 and 7, the mechanical chassis 80 is mounted with a table rotating device 82 to which the DVD 2 is detachably mounted and an optical pickup device 86 showing a specific example of the pickup device. The table rotating device 82 includes a spindle motor 83 fixed to the mechanical chassis 80 and a turntable 84 fixed to the rotating portion of the spindle motor 83.

  The turntable 84 includes a fitting portion 84a into which the center hole 2a of the DVD 2 is fitted, and a placement portion 84b on which the peripheral edge of the center hole 2a is placed. Furthermore, a plurality of engaging claws 85a for holding the DVD 2 by engaging with the peripheral edge of the center hole 2a of the DVD 2 are arranged at equal intervals in the circumferential direction in the fitting portion 84a. Each engagement claw 85a is urged radially outward by a spring 85b. By retracting the engagement claw 85a against the spring force of the spring 85b, the DVD 2 is attached to and detached from the fitting portion 84a. Operation is possible. The surface of the mounting portion 84b is set parallel to the surface of the mechanical chassis 80.

  The optical pickup device 86 includes a biaxial actuator 88 having a pickup lens 87 facing the information recording surface of the DVD 2, a slide member 89 on which the biaxial actuator 88 is mounted, and the like. The slide member 89 is movable by being guided by two guide shafts not shown in the drawing. The two guide shafts are parallel to each other across the spindle motor 83, and a pickup moving device 90 is provided in the vicinity of one of the guide shafts.

  As shown in FIG. 7, the pickup moving device 90 includes a feed screw shaft 91 engaged with a feed nut (not shown) fixed to the slide member 89, and a feed motor 92 having the feed screw shaft 91 as a rotation shaft. It is configured. The feed screw shaft 91 is set parallel to the guide shaft of the optical pickup device 86 and is rotatably supported by the mechanical chassis 80. Thus, by rotationally driving the feed motor 92, the optical pickup device 86 is selectively moved in a direction approaching the turntable 84 and a direction away from the turntable 84 in accordance with the rotational direction of the feed screw shaft 91.

  The mechanical chassis 80, the table rotating device 82, the optical pickup device 86, and the pickup moving device 90 constitute a disk drive device 3. Most of the upper surface of the disk drive device 3 is covered with a protective cover 93 except for a predetermined area for the turntable 84 and the optical pickup device 86 and a feed motor 92 portion.

  The disk drive device 3 having such a configuration attaches the partition wall 10 to a predetermined position in the exterior case 7 as shown in FIG. The first chamber 72 is positioned at a predetermined position. At this time, the turntable 84 and its peripheral part of the disk drive device 3 face the disk storage chamber 8 of the disk side panel 12 and face the disk lid 9. As shown in FIG. 6, a heat insulating gap 100A made of an air layer is set between the disk drive device 3 and the partition wall 10 or the insulating plate 11, and the heat from the partition wall 10 is transferred to the disk drive device. 3 is difficult to convey.

  A duct member 95 extending in the up-down direction intersecting with the front-rear direction is fixed to a midway part in the front-rear direction of the surface of the partition wall 10 opposite to the insulating plate 11 by fixing means such as screws. The duct member 95 sets a fluid passage (duct) penetrating in the vertical direction at a substantially central portion of the exterior case 7, and a fluid passage 96 is formed between the partition member 10 and the duct member 95.

  The duct member 95 is configured as shown in FIGS. That is, the duct member 95 has a crank shape that is biased in the front-rear direction at the upper portion, and a shift portion 95a, a bulging portion 95b, and a pedestal portion 95c are provided at the upper portion. The lower end of the duct member 95 is formed with a lower end opening 96b communicating with the suction port 71 provided on the lower surface of the disk side panel 12, and the displacement portion 95a is provided with a discharge port provided on the upper surface of the disk side panel 12. An upper end opening portion 96 a communicating with 70 is formed.

  As shown in FIGS. 12A, 12B, 12C, and 12D, the central portion of the duct member 95 extends in the up-down direction, and covers one plane so as to surround the flat portion 120a extending in the vertical direction and the side edge of the flat portion 120a. A side surface portion 120b that protrudes to the side is provided, and a fluid passage 96 is formed inside the flat surface portion 120a and the side surface portion 120b. Further, as shown in FIG. 12D, the fluid passage 96 is partitioned in the left-right direction by a partition 121 extending in the up-down direction, thereby forming a drainage channel 122.

  The upper part of the partition 121 of the duct member 95 is formed as a partition wall 121a connected to the shift portion 95a. The partition wall 121a guides rainwater that may enter the fluid passage 96 from the upper end opening 96a to the drainage passage 122, and the lower end. The air is discharged from the opening 96b through the suction port 71 to the outside. As shown in FIGS. 12A, 12B, and 13B, the pedestal portion 95c of the duct member 95 is provided with a first opening 98a that is opened to the outside, and the bulging portion 95b that follows the shift portion 95a A second opening 98b that opens toward the pedestal 95c is provided. A fan 97 that forcibly flows outside air (air) through the fluid passage 96 is fastened and fixed to the pedestal portion 95c by means of fixing means by means of mounting screws 97a via an insulator made of an elastic body.

  The first opening 98 a of the duct member 95 is opposed to the intake port of the fan 97, and the second opening 98 b is opposed to the discharge port of the fan 97. As a result, when the fan 97 is driven to rotate, negative pressure acts on the lower end opening 96b of the fluid passage 96, and cold air of the outside air flows from the suction port 71 opened on the lower surface of the exterior case 7 through the lower end opening 96b. It is introduced into the passage 96. Then, the air enters the intake port of the fan 97 from the first opening 98a, and the air is discharged from the discharge port of the fan 97 to the upper end opening 96a through the second opening 98b. Further, the air discharged to the upper end opening 96 a is discharged to the outside from the discharge port 70 opened on the upper surface of the outer case 7.

  The duct member 95 having such a configuration is provided with a plurality of mounting pieces 95d into which mounting screws are inserted in order to fix the duct member 95 to the partition wall 10. Reference numeral 95e shown in FIG. 12A and the like is a support protrusion for supporting the printed circuit board 4. As a material of the duct member 95, for example, an aluminum alloy or other metal excellent in thermal conductivity is suitable, but an engineering plastic excellent in thermal conductivity can also be used.

  As shown in FIG. 6, a plurality of printed boards 4 (three printed boards 4 </ b> A, 4 </ b> B, and 4 </ b> C are shown in FIG. 6) in the second chamber 73 of the outer case 7. It is arranged. The three printed boards 4A, 4B, and 4C are arranged in layers with an appropriate gap therebetween, and an air layer is formed between adjacent printed boards and between the printed boards and the partition wall 10 or the board side panel 13. Insulating gaps 100B, 100C, 100D and 100E are set.

  For example, the first printed circuit board 4 </ b> A is fastened and fixed to the tips of a plurality of support pieces 75 erected on the partition wall 10 by mounting screws 99 a, whereby a heat insulating gap 100 </ b> B is formed between the first printed circuit board 4 </ b> A and the partition wall 10. Is set. The second printed board 4B is fastened and fixed to a plurality of brackets 101 fixed to the inner surface of the board side panel 13 by mounting screws 99b, whereby a heat insulating gap 100C is formed between the second printed board 4B and the first printed board 4A. Is set.

  Further, the third printed circuit board 4C is fastened and fixed to the support protrusions 13a provided on the board-side panel 13 by mounting screws 99c. Thereby, a heat insulating gap 100D is set between the third printed board 4C and the second printed board 4B, and a heat insulating gap 100E is set between the third printed board 4C and the board side panel 13. ing.

  The electronic component 102 mounted on the first printed board 4A (for example, an LSI or a microprocessor that generates heat during operation) and the duct member 95 are made of a heat conductive molded body having excellent heat conductivity. A heat radiating rubber 104A is interposed. Further, a heat radiating plate 105 having excellent thermal conductivity is fastened and fixed to the upper surface of the bulging portion 95b of the duct member 95 by mounting screws 106a. A heat radiating rubber 104B is interposed between the heat radiating plate 105 and the first printed circuit board 4A, and a heat radiating rubber 104C is interposed between the heat radiating plate 105 and the second printed circuit board 4B.

  Examples of the heat radiation rubbers 104A, 104B, and 104C include “Cool Provided” manufactured by Kitagawa Industries Co., Ltd. This cool provide consists of a silicone gel molded body having thermal conductivity, has excellent flexibility, and can be easily molded into various shapes.

  As features of cool provide, for example, the following matters can be mentioned. The color of Cool Provide is visually “green”, the thermal conductivity is 2 (W / m · K) by the test method (QTM method), the specific gravity is 1.92, and the hardness (ASKERC) is 20 by JISK6253. It had flammability and the measured value was V-1 by the test method UL94. Furthermore, the cool provide has a tack property (a property of sticking to an object or sticking an object). If an object or part of a certain weight is used, the surface portion can be removed without using a fixing means such as a screw. Parts and the like can be temporarily fixed only by the adhesive force.

  In the heat radiating rubber 104 having such properties, one surface of the heat radiating rubber 104A is bonded to the surface of the duct member 95, and the other surface is bonded to one surface of the first printed board 44A. One surface of the heat radiating rubber 104B is bonded to the other surface of the first printed board 4A, and one surface of the heat radiating plate 105 is bonded to the other surface. One surface of the heat radiation rubber 104C is bonded to the other surface of the heat radiating plate 105, and one surface of the second printed circuit board 4B is bonded to the other surface. Note that the heat-dissipating rubber 104 is not used for the third printed circuit board 4C because the electronic components that generate significant heat are not mounted on the third printed circuit board 4C.

  With such a configuration, when the first printed circuit board 4A generates heat due to the operation of the mounted electronic component or the like, heat is conducted from the electronic component 102 to the duct member 95 via the heat dissipation rubber 104A. On the other hand, heat is conducted to the duct member 95 via the heat radiation rubber 104 </ b> B and the heat radiation plate 105. Further, when the second printed circuit board 4B generates heat due to the operation of an electronic component or the like, heat is conducted to the duct member 95 via the heat dissipation rubber 104C and the heat dissipation plate 105. As a result, since both the heat radiating rubber 104 and the heat radiating plate 105 are formed of a conductor that transfers heat well, the heat of the first printed board 4A and the second printed board 4B is efficiently conducted to the duct member 95. can do.

  Further, not only the duct member 95 is formed of a heat conductor, but also a fluid passage 96 is formed therein, and a fan 97 is provided in the fluid passage 96. By driving and circulating outside air in the fluid passage 96, the duct member 95 can be deprived of heat and cooled. Therefore, the heat of the first and second printed circuit boards 4A and 4B is efficiently released to the outside through the heat radiation rubber 104, the heat radiation plate 105, and the duct member 95, and the temperature in the second chamber 73 is higher than necessary. Can be prevented.

  Further, as shown in FIG. 5, the lens device 6 is housed in the second chamber 73 of the outer case 7 with the objective lens 16 exposed to the outside of the outer case 7. The lens device 6 includes a lens barrel 110 in which a plurality of lenses including the objective lens 16 are housed, and a CCD 5 is disposed on the optical axis on the back surface of the lens barrel 110. Reference numeral 111 shown in FIG. 5 is a heat radiating plate surrounding the upper surface and one side surface of the lens barrel 110. The heat radiating plate 111 is for suppressing the heat generation of the lens device 6 and the CCD 5 to ensure a smooth operation of the lens device 6 and the CCD 5.

  The heat radiating plate 111 has an upper surface portion 111a, a side surface portion 111b, and a rear surface portion 111c, and is fixed to the lens barrel 110 by a fixing means such as a mounting screw (not shown). The outer surface of the lens barrel 110 is in contact with the inner surfaces of the upper surface portion 111a and the side surface portion 111b of the heat radiating plate 111, and the CCD 5 is fixed to the front surface of the rear surface portion 111c. Examples of the heat source of the lens device 6 and the like include a zoom lens motor that generates heat in accordance with the operation thereof, an electronic component such as the CCD 5, and the like. As a material of the heat sink 111, for example, a copper plate which is a heat conductor is suitable, but other metals can be used, and an engineering plastic can also be used if it is a heat conductor.

  According to the disk type imaging device 1 having such a configuration, the fluid passage 96 formed by the duct member 95 is provided in the substantially central portion of the outer case 7 so as to penetrate in the vertical direction. In addition, the heat generated from the large heat generating electronic component built in the outer case 7 can be efficiently radiated to the outside using the fluid passage 96.

  That is, the duct member 95 is formed of a heat conductor, and as shown in FIG. 6, the heat of the heat source such as the electronic component 102 that generates large heat mounted on the printed circuit board 44 is efficiently collected in the duct member 95. It has a configuration that can be. A fluid passage 96 is formed inside the duct member 95, and is sucked from a suction port 71 opened on the outer surface of the outer case 7, passes through the fluid passage 96, and is also opened on the outer surface of the outer case 7. Air is discharged from the discharge port 70 to the outside. Therefore, the heat in the exterior case 7 is absorbed by the cold air passing through the fluid passage 96, and the air heated thereby is discharged from the fluid passage 96 to the outside, so that the interior of the exterior case 7 can be cooled.

  Therefore, it is possible to prevent the temperature of the spindle motor 83, the biaxial actuator 88, etc. of the disk drive device 3 from becoming higher than necessary. As a result, rotation failure or malfunction of the spindle motor 83, etc. due to temperature rise can be prevented. Can be prevented. In addition, a fan 97 is disposed in the fluid passage 96, and driving the fan 97 forcibly circulates outside air into the fluid passage 96, thereby improving the cooling efficiency of the internal device. Furthermore, by providing fins in the fluid passage 96, the cooling efficiency can be further improved.

  On the other hand, since the discharge port 70 is opened on the upper surface of the disk side panel 12, rainwater may enter the fluid passage 96 from the discharge port 70 in, for example, outdoor photography during rainy weather. Also in such a case, the rainwater that has entered the fluid passage 96 is guided to the lower end opening 96b side from the drainage passage 122 formed by the partition wall 121a. Moreover, since the air inlet of the fan 97 is opposed to the first opening 98 a of the pedestal 95 c separated from the drainage channel 122 by the partition 121, rainwater that has entered the upper end opening 96 a It does not flow into the air intake. Therefore, it is possible to prevent a problem that the fan 97 comes into contact with rainwater and rusts.

  In addition, in the said Example, although the two opening parts of the inlet and outlet of a fluid passage were demonstrated in two surfaces, the upper surface and the lower surface of the exterior case 7, two openings were, for example, It is good also as a structure provided in two places of the same surface like a lower surface or an upper surface or a side surface. The reason for this is that, in the present invention, since the fan is provided in the fluid passage, air can be sufficiently circulated even in the same plane by forcibly circulating air with the fan. .

  The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention. For example, in the above-described embodiment, an example in which the present invention is applied to a disk-type imaging device using a DVD as a recording medium has been described. However, it is possible to use a disk-shaped recording medium of another recording system such as a magneto-optical disk or a magnetic disk. Of course. In the above embodiment, the present invention is applied to a device capable of recording as well as reproducing as a disk recording and / or reproducing device. However, the present invention can be applied to a reproducing disk reproducing device and a recording dedicated disk recording device. is there.

1 is a perspective view showing a disk type imaging apparatus according to an embodiment of a disk recording and / or reproducing apparatus of the present invention, with a disk lid being opened. FIG. It is the perspective view which looked at the disk lid side of the disk type imaging device shown in FIG. 1 from the back side. It is the perspective view which looked at the display apparatus side of the disc type imaging device shown in FIG. 1 from the front side. It is the perspective view which opened the display apparatus of the disc type imaging device shown in FIG. 1, and was seen from the back side. It is the perspective view seen from the back side which removes the board | substrate side panel of the disk-type imaging device shown in FIG. 1, and shows an internal partition wall. FIG. 2 is an explanatory view in which the disk type imaging device shown in FIG. It is a top view of the assembly state of the partition wall and disc drive which concern on the disc type imaging device shown in FIG. FIG. 2 is a bottom view of an assembled state of a partition wall and a disk drive device according to the disk type imaging apparatus shown in FIG. 1. FIG. 2 is a side view of an assembled state of a partition wall and a disk drive device according to the disk type imaging apparatus shown in FIG. 1. It is a perspective view of the partition wall which concerns on the disc type imaging device shown in FIG. It is a perspective view of the duct member which concerns on the disc type imaging device shown in FIG. 1 shows a duct member according to the disk type image pickup apparatus shown in FIG. 1. FIG. 1A is a left side view with a partial cross section, FIG. B is a front view, FIG. C is a right side view, and FIG. FIG. 12 is a plan view, FIG. 12B is a sectional view taken along line XX of FIG. 12B, FIG. 12C is a sectional view taken along line YY of FIG. 12B, and FIG. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Disk imaging device (disk recording and / or reproducing | regenerating apparatus), 2 ... DVD (disk-shaped recording medium), 3 ... Disk drive apparatus, 4A, 4B, 4C ... Printed circuit board, 5 ... CCD (solid-state image sensor), 6 DESCRIPTION OF SYMBOLS ... Lens apparatus, 7 ... Exterior case, 8 ... Disc storage room, 9 ... Disc lid, 10 ... Partition wall, 12 ... Disc side panel, 13 ... Substrate side panel, 27 ... Display device, 28 ... Liquid crystal monitor, 35 ... Panel Lock mechanism, 50 ... Lid lock device, 72 ... First chamber, 73 ... Second chamber, 80 ... Mechanical chassis, 82 ... Table rotating device, 84 ... Turntable, 86 ... Optical pickup device, 90 ... Pickup moving device 95 ... Duct member, 96 ... Fluid passage, 104A, 104B, 104C ... Heat radiating rubber (heat conduction molding), 105 , 111 ... Heat sink

Claims (8)

A table rotating device that rotationally drives a disk-shaped recording medium that is detachably mounted;
A pickup device for recording and / or reproducing information signals to and from the disk-shaped recording medium rotated by the table rotating device;
A printed circuit board on which a control circuit for driving and controlling the table rotating device and the pickup device is mounted;
An exterior case in which the table rotating device, the pickup device and the printed circuit board are stored;
In a disk recording and / or playback device comprising:
A disk recording and / or reproducing apparatus, wherein a fluid passage having both ends opened on one or two sides is provided in the outer case, and a fan is provided in the fluid passage.   The disk recording and / or reproducing apparatus includes a solid-state image sensor that can obtain an image corresponding to a subject by light input through a lens device, and the image obtained by the solid-state image sensor is the disk-shaped recording medium. The disk recording and / or reproducing apparatus according to claim 1, wherein the imaging apparatus is capable of recording on the disk.   The imaging device includes a display device capable of displaying an image obtained by the solid-state imaging device, and the display device includes an image supplied from the solid-state imaging device and an image read from the disk-shaped recording medium. 3. The disk recording and / or reproducing apparatus according to claim 2, wherein can be displayed simultaneously selectively or divided.   3. The disk recording and / or the disc recording and / or the recording medium according to claim 2, wherein the fluid passage has an inlet port at one end opened at a lower surface of the outer case and a discharge port at the other end opened at an upper surface of the outer case. Playback device.   5. The disk recording and / or reproducing apparatus according to claim 4, wherein the fluid passage is provided with a drainage channel that guides water entering from the discharge port to the suction port and discharges the water to the outside.   3. The disk recording and / or reproducing apparatus according to claim 2, wherein the fluid passage is formed by a duct member made of a heat conductor.   7. The disk recording and / or reproducing apparatus according to claim 6, wherein fins are provided on an inner surface or an outer surface of the fluid passage.   3. The disk recording and / or reproducing apparatus according to claim 2, wherein an uneven portion that forms a gap with an outer surface is provided outside the suction port of the fluid passage in the outer case.

Images