JP2009296469A - Information recording and reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information recording and reproducing device which sucks air of the quantity required for radiating heat into the information recording and reproducing device, thereby efficiently cooling a component that becomes a heat generating source, and which is made compact. <P>SOLUTION: The information recording and reproducing device 1 includes: an exterior case 11; a cooling fan 50 disposed inside the exterior case 11; inlets 23 and 24 which are formed in an area, which becomes a photographer side in photographing, of the exterior case 11 and intakes external air by driving the cooling fan 50; and an outlet 15 which is provided on the exterior case 11 for exhausting an airflow generated by driving the cooling fan 50. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information recording / reproducing apparatus for recording information on a recording medium and / or reproducing information recorded on the recording medium.

  2. Description of the Related Art Conventionally, in an information recording / reproducing apparatus (for example, a video camera), an information recording / reproducing apparatus is used as a heat dissipation measure for heat generated from circuit components such as LSI mounted on a circuit board disposed in the information recording / reproducing apparatus. A heat dissipation plate such as a copper plate with excellent thermal conductivity is connected to the metal frame that is the skeleton of the structure to dissipate heat to the external housing, and heat dissipation is improved by connecting the heat dissipation plate and circuit board with heat dissipation rubber. Etc. have been made.

In addition, the exterior case of the information recording / reproducing apparatus is provided with a fluid passage in which an air intake port is opened on the lower surface and an exhaust port is opened on the upper surface, and a cooling fan is disposed in the fluid passage, An information recording / reproducing apparatus has been introduced that suppresses a temperature rise inside the apparatus by an air flow generated by exhausting air sucked from the intake port by an air fan from the exhaust port. (For example, refer to Patent Document 1).
JP 2005-63534 A

  In recent years, with the increase in image quality of information recording / reproducing apparatuses, the amount of heat generated by image sensors and circuit boards has increased, and there has been an increasing demand for miniaturization of the entire apparatus as much as possible. In order to meet this demand for downsizing, in an information recording / reproducing apparatus that radiates heat by an air flow generated by a cooling fan, the area of the air intake port sucked by the cooling fan is the amount necessary to perform the radiating. It is difficult to ensure that there is enough space to inhale air. For example, the information recording / reproducing apparatus described in Patent Document 1 has a configuration in which one intake port for the air is opened on the lower surface located in the middle in the front-rear direction of the outer case. There is a risk that it will be difficult to ensure the safety.

  The present invention has been made in view of such circumstances, and a quantity of air necessary for heat radiation can be sucked into the information recording / reproducing apparatus, and a component that becomes a heat source can be efficiently cooled. Another object of the present invention is to provide an information recording / reproducing apparatus in which downsizing is achieved.

  In order to achieve this object, the present invention provides an information recording / reproducing apparatus including an imaging unit that images a subject, and a disk drive that records captured image information on a recording medium and reads information recorded on the recording medium. An external case, a cooling fan disposed in the external case, and an external air formed by driving the cooling fan in an area of the external case on a photographer side during photographing Provided is an information recording / reproducing apparatus comprising a plurality of air intake ports, each having an air intake port for sucking air and an air exhaust port that is provided in the exterior case and discharges airflow generated by driving the cooling fan. Is.

  According to the present invention, an information recording / reproducing apparatus in which a necessary amount of air for performing heat radiation can be sucked into the apparatus, and a component serving as a heat source can be efficiently cooled, and at the same time, miniaturization is achieved. Can be provided.

  Next, an information recording / reproducing apparatus according to a preferred embodiment of the present invention will be described with reference to the drawings. In addition, embodiment described below is the illustration for demonstrating this invention, and this invention is not limited only to these embodiment. Therefore, the present invention can be implemented in various forms without departing from the gist thereof.

  FIG. 1 is a perspective view showing the appearance of the information recording / reproducing apparatus according to the present embodiment as viewed from the front. FIG. 2 is a perspective view showing the appearance of the information recording / reproducing apparatus shown in FIG. 3 is a front view of the information recording / reproducing apparatus shown in FIG. 1, FIG. 4 is a rear view of the information recording / reproducing apparatus shown in FIG. 1, and FIG. 5 is formed in the information recording / reproducing apparatus shown in FIG. FIG. 6 is a view of the outer case removed from the rear side so that the relationship between the ventilation duct connecting the two exhaust ports and the cooling fan can be seen. FIG. 6 is a line VI-VI shown in FIG. FIG. 7 is a cross-sectional view taken along the line, and FIG. 7 shows a state in which the rear side and the right side of the display unit and the outer case are removed from the rear side so that the relationship between the cooling fan and the main board of the information recording / reproducing apparatus shown in FIG. 8 is a cross-sectional view taken along the line VIII-VIII shown in FIG. 11, and FIG. FIG. 10 is a front view of the apparatus with the imaging unit and the display unit removed, FIG. 10 is a left side view of the information recording / reproducing apparatus shown in FIG. 7, and FIG. 11 is the information recording / reproducing apparatus shown in FIG. It is the top view seen from the upper part.

  In the drawings, for easy understanding, the thickness, size, enlargement / reduction ratio, etc. of each member are not matched with the actual ones. For ease of explanation, in each of the drawings, only the housing (outer shape) of the cooling fan is shown, and in FIG. 8, the hatching showing the cross section is omitted.

  In the present embodiment, the side that is the photographer at the time of shooting is referred to as “rear side” or “rear side”, and the opposite side of the rear side (that is, the side facing the subject at the time of shooting) is referred to as “front side” or “ This will be described as “front side”. In the present embodiment, the right side toward the rear side of the apparatus is described as “right”, and the left side toward the rear side of the apparatus is described as “left”. The vertical direction of the apparatus is the vertical direction when shooting.

  As shown in FIGS. 1 to 6, 8, and 9, the information recording / reproducing apparatus 1 (for example, a video camera) according to the present embodiment has an exterior case 11 that constitutes the exterior of the apparatus. The exterior case 11 has a size that allows a photographer to hold and operate it with one hand, and is disposed on the right side of the body case 11A, a body case 11A in which a photographing optical system and the like are disposed, An R case 11B in which an optical disk drive 30 and the like are disposed, and an R case cover 12 disposed on the right side of the R case 11B so as to be openable and closable with respect to the R case 11B and in which a hard disk drive 40 is disposed. It is equipped with. The R case cover 12 is a grip portion that is curved outward so that the user can easily hold the information recording / reproducing apparatus 1. By opening the R case cover 12, the optical disc drive 30 has an optical disc at a predetermined position. The optical disk that has been mounted or the mounted optical disk can be taken out.

  At the upper part of the front side of the main body case 11A, a lens barrel 13 incorporating a photographing optical system extends in the front-rear direction, and a front portion thereof is provided so as to face the front surface of the main body case 11A. A microphone 14 for picking up sound is disposed on the upper surface of the front portion of the lens barrel 13 at the upper part on the front side of the main body case 11A. Further, an exhaust port 15 (see FIGS. 3 and 9) is formed in the lower part on the front side of the main body case 11A through which an air flow generated by a cooling fan 50 described later is discharged. On the other hand, on the rear side of the upper part of the main body case 11A, an SD memory card (Secure Digital memory card) is connected to an SD connector 90 (see FIGS. 5, 7, 10 and 11) disposed in the main body case 11A. An opening / closing cover 18 is provided that is opened and closed when inserting or removing the.

  A battery mounting portion 20 for detachably mounting the battery 19 is formed on the rear side surface (back surface) of the main body case 11A. As shown particularly in FIG. 4, the battery mounting portion 20 includes a battery mounting area 21 in which the battery 19 is mounted, and an attachment / detachment area 22 that is a space for sliding the battery 19 with respect to the battery mounting area 21. have. An air inlet 23 for taking air into the main body case 11 </ b> A is formed below the battery mounting portion 20, and an air inlet 24 for taking air into the outer case 11 is formed in the attachment / detachment region 22. Is formed. As described above, since the two intake ports 23 and 24 are formed, the total area of the intake ports can be increased, and an amount of air necessary for heat dissipation can be reliably taken into the body case 11A. can do.

  Here, the attachment / detachment region 22 is used to slide the battery 19 when the battery 19 is attached to or removed from the battery attachment region 21, but the battery 19 is attached to the battery attachment region 21. When exposed, it is exposed to the outside. Therefore, since the battery 19 does not block the intake port 24, intake from the intake port 24 is not hindered. In addition, when the battery 19 is mounted in the battery mounting area 21, the air inlet 24 is disposed in the detachable area 22 that becomes a dead space, and therefore it is necessary to separately allocate an area for disposing the air inlet 24. Even if the intake port 24 is formed with an area that secures a necessary intake amount, there is no problem in downsizing the information recording / reproducing apparatus 1. A recording button 25 for starting and stopping recording is provided on the rear side surface of the main body case 11A.

  On the left side of the main body case 11A, a display unit 16 made of, for example, a liquid crystal display device, which displays an image or the like at the time of shooting / playback, is disposed. The display unit 16 can be opened / closed and rotated with the display unit fulcrum unit 17 as a fulcrum, and can be adjusted to an angle suitable for the state of use.

  Next, the internal structure of the information recording / reproducing apparatus 1 will be described with reference to FIGS. As shown in FIGS. 10 and 11, a barrel 13 is arranged in the main body case 11 </ b> A so as to extend from the front side toward the rear side, and on the front side of the barrel 13. , A lens 31 is disposed, and a CMOS (Complementary Metal Oxide Semiconductor) substrate 32, a GYR (Gyro: Gyro mounted) substrate 33, and a REG (Regulator: power source) are arranged in order from the front side on the rear side end of the lens barrel 13. Adjustment circuit) A substrate 34 is provided. Further, on the rear side of the REG board 34, an SD board (SD memory card circuit board) 35 is disposed on the rear side of the SD board 35. The SD memory card is received and the SD memory card is inserted into the SD board 35. An SD connector 90 is provided for electrical connection to the.

  When the SD connector 90 receives the SD memory card therein, the surface of the SD memory card on which the connection terminal with the SD connector 90 is formed faces in the front-rear direction (roughly the surface facing the photographer at the time of shooting). The insertion slot for inserting the SD memory card is formed on the upper surface. Here, the SD memory card usually has a substantially rectangular parallelepiped, but the narrower edge is the left-right direction of the information recording / reproducing apparatus 1, and the longer edge is the upper and lower sides of the information recording / reproducing apparatus 1. The information recording / reproducing apparatus 1 is inserted from the upper part toward the lower part so as to be in the direction. Therefore, the SD memory card does not become a factor that increases the length of the information recording / reproducing apparatus 1 in the left-right direction. Further, since the SD memory card can be inserted from the top of the information recording / reproducing apparatus 1, operability can be improved.

  Below the lens barrel 13, an OIS (Optical Image Stabilizer) substrate 41 is disposed with the surface on which the circuit is mounted substantially horizontal, and below the OIS substrate 41 is the main of the information recording / reproducing apparatus 1. The main board 42 on which an integrated circuit for signal processing related to the system is mounted is spaced apart from the OIS board 41 and parallel to the OIS board 41 (that is, in a state where the circuit mounting surface is substantially horizontal). It is arranged. Further, a JACK board 43 is disposed below the main board 42 in parallel with the main board 42 at a distance from the main board 42.

  Here, in the conventional information recording / reproducing apparatus, the main substrate is normally disposed on the rear side of the lens barrel (lens portion) perpendicularly to the bottom surface of the main body case 11A. In order to reduce the (left-right direction), it is necessary to take a shape to escape the lens part so as not to interfere with the lens part. Therefore, in order to secure the required area of the main board, it is practically impossible to shorten the length in the front-rear direction (length from the front end surface to the rear end surface). The information recording / reproducing apparatus 1 according to the present embodiment includes a configuration in which the OIS substrate 41, the main substrate 42, and the JACK substrate 43 are disposed substantially horizontally below the lens barrel 13 (lens portion). The length of the information recording / reproducing apparatus 1 in the front-rear direction can be reduced as compared with the case where the OIS substrate 41 and the main substrate 42 are disposed substantially vertically on the rear side of the lens barrel 13 (lens portion). Also, in the conventional information recording / reproducing apparatus, normally, a terminal for external connection or the like is disposed below the lens barrel (lens portion), and there is a dead space. Since the space below the lens barrel 13 (lens portion) is used as a space for substrate placement, a portion that has been a dead space can be used effectively, and further downsizing can be achieved.

  A cooling fan 50 is disposed on the rear side of the main board 42 and below the SD connector 90. On the rear side of the cooling fan 50, a ventilation duct 60 is provided for communicating the cooling fan 50 with the intake ports 23 and 24. By disposing the ventilation duct 60, air can be sucked without waste from the air inlet 24 formed away from the cooling fan 50. Further, as shown in FIG. 5, the ventilation duct 60 has a streamlined shape that gently curves from the inlet port 24 toward the inlet port 23, and the flow path formed in the inside thereof also conforms to this. Streamlined. Here, the air sucked from the intake ports 23 and 24 by driving the cooling fan 50 reaches the cooling fan 50 through the ventilation duct 60. At this time, the air flow defined by the ventilation duct 60 is reached. Since the path is streamlined, air can be circulated smoothly. Further, since the air inlet 23 is formed at a position facing the cooling fan 50, the air sucked from the air inlet 23 immediately moves to the front side. Therefore, air can be distributed efficiently.

  Further, as described above, the main board 42, the OIS board 41, and the like, which are components that are likely to become high temperature, are arranged substantially horizontally below the lens barrel 13, and are on the trajectory of the airflow formed by the cooling fan 50. Therefore, since this airflow directly hits the main board 42, the OIS board 41, etc., these can be radiated (cooled) without waste.

  In the present embodiment, as the cooling fan 50, a suction-type fan that sucks external air into the main body case 11A is used. In addition, since the cooling fan 50 is disposed on the rear side and the microphone 14 is disposed on the front side so that the two are separated from each other, the driving sound of the cooling fan 50 is collected by the microphone 14. It can also be prevented. Further, since the airflow generated by driving the cooling fan 50 flows from the rear side to the front side and is discharged to the outside from the exhaust port 15, the discharged airflow (air) is prevented from hitting the photographer. You can also.

  The R case 11B protects the optical disc drive 30 for recording a moving image on the optical disc, and the optical disc drive 30 can be loaded and unloaded by opening the R case cover 12. A resin plate 37 as a support for supporting the optical disc drive 30 is disposed in the R case 11B. The resin plate 37 is formed by molding a resin. The optical disk drive 30 is positioned on the right side surface of the resin plate 37, and a screw is mounted on the wall portion of the R case 11B located near the main body case 11A together with the optical disk drive 30. It is fastened together by fixing members such as. The resin plate 37 separates the imaging unit side and the optical disc drive 30 side, and also plays a role of blocking air flow between the imaging unit side and the optical disc drive 30 side. A drive circuit board 36 is disposed on the left side surface of the resin plate 37 as shown in FIGS.

  Here, since the resin plate 37 is formed by molding with a degree of freedom in the processing shape, for example, a gap is formed in the resin plate 37 itself as compared with the case where the resin plate 37 is formed by pressing metal or the like. It is formed in any shape. Accordingly, since the air is hardly circulated between the main body case 11A side (imaging unit side) and the R case 11B side (optical disc drive 30 side) with the resin plate 37 as a boundary, the cooling fan 50 The air sucked in is hardly reached the optical disk drive 30 side. For this reason, even if dust is mixed in the air sucked by the cooling fan 50, the dust can be prevented from entering the optical disk drive 30 side.

  The optical disc may be, for example, various DVDs such as DVD (Digital Versatile Disc) -R and DVD + RW, BD (Blue-ray Disc), HD (High Definition) -DVD, and the like.

  The right side surface of the optical disk drive 30 is an optical disk mounting surface 38 on which an optical disk is mounted. The optical disk drive 30 is inserted into a central hole formed in the mounted optical disk at a substantially central portion of the optical disk mounting surface 38. A clamping part 39 for chucking is formed.

  In the present embodiment, the case where the two intake ports 23 and 24 are formed on the rear side of the main body case 11A has been described. However, the present invention is not limited to this, and three or more intake ports may be formed as desired. . In the present embodiment, the case where the air inlet 23 is formed below the battery mounting portion 20 and the air inlet 24 is formed in the attachment / detachment region 22 has been described. Can be selected as long as it is an area on the photographer side (that is, the rear side of the outer case 11) when photographing the outer case 11.

  Moreover, although the case where the air inlet 23 and the air inlet 24 were connected by the ventilation duct 60 was demonstrated in this Embodiment, it does not necessarily need to provide the ventilation duct 60 not only in this. Further, the shape of the ventilation duct 60 is not limited to the streamline type, and can be arbitrarily set according to the formation position of the intake port 23 and the intake port 24, for example.

  In the present embodiment, the case where the cooling fan 50 is disposed in the lower part on the rear side of the main body case 11 </ b> A has been described. However, the present invention is not limited to this, and the cooling fan 50 is connected to the intake port 23 and the intake port 24. If air can be inhaled and heat can be radiated by an air flow generated by the inhaled air, it can be arranged at other positions as desired.

  In the present embodiment, the OIS substrate 41, the main substrate 42, and the JACK substrate 43 are disposed substantially horizontally below the lens portion (lens barrel 13) for the purpose of achieving miniaturization and efficient heat dissipation. However, the present invention is not limited to this. For example, if desired, only the main substrate 42 may be disposed substantially horizontally below the lens unit (lens barrel 13). The substrate 42 and the JACK substrate 43 may be arranged at other positions. In this case, it is desirable to determine the position of each substrate so that the substrates that need to be radiated can be efficiently cooled by the cooling fan 50 and can be reduced in size.

  In the present embodiment, the case where the optical disk drive 30 is supported by the resin plate 37 has been described. However, the present invention is not limited to this, and in the case of an information recording / reproducing apparatus of the type not equipped with the optical disk drive 30, the resin plate 37 The drive 40 may be supported. In the present embodiment, the case where the resin plate 37 is formed by molding in order to block the air flow between the imaging unit side and the disk drive side has been described. However, the present invention is not limited to this, and the disk drive is supported. The support is not necessarily made of resin, and is not necessarily formed by molding.

  In the present embodiment, the case where the SD memory card is inserted from the top of the information recording / reproducing apparatus 1 has been described. However, the present invention is not limited to this, and the SD memory card may be inserted from another direction as desired. Good.

  Furthermore, in this embodiment, the case where an optical disk, a hard disk, and an SD memory card are used as the recording medium has been described. However, the present invention is not limited to this, and various recording media can be used as long as the information recording / reproducing apparatus 1 can function. Can be selected arbitrarily.

It is a perspective view which shows the state which looked at the external appearance of the information recording / reproducing apparatus concerning embodiment of this invention from the front. It is a perspective view which shows the state which looked at the external appearance of the information recording / reproducing apparatus shown in FIG. 1 from back. It is a front view of the information recording / reproducing apparatus shown in FIG. It is a rear view of the information recording / reproducing apparatus shown in FIG. It is the figure which looked at the state which removed the rear side of the exterior case from the back side so that the relationship between the ventilation duct and the cooling fan which connect two exhaust ports formed in the information recording / reproducing apparatus shown in FIG. . It is sectional drawing along the VI-VI line shown in FIG. FIG. 2 is a view of a state in which a rear side and a right side of a display unit and an outer case are removed so that a relationship between a cooling fan and a main board of the information recording / reproducing apparatus shown in FIG. It is sectional drawing along the VIII-VIII line shown in FIG. It is the figure which looked at the state which removed the imaging part and the display part from the information recording / reproducing apparatus shown in FIG. 1 from the front side. It is a left view of the information recording / reproducing apparatus shown in FIG. It is a top view of the information recording / reproducing apparatus shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Information recording / reproducing apparatus, 11 ... Outer case, 13 ... Body tube, 15 ... Exhaust port, 16 ... Display part, 19 ... Battery, 20 ... Battery attaching part, 21 ... Battery mounting area, 22 ... Detaching area, 23 , 24 ... Intake port, 30 ... Optical disk drive, 37 ... Resin plate, 40 ... Hard disk drive, 41 ... OIS board, 42 ... Main board, 50 ... Cooling fan, 60 ... Ventilation duct, 90 ... SD connector

Claims (11)

An information recording / reproducing apparatus comprising: an imaging unit that images a subject; and a disk drive that records the captured image information on a recording medium and reads information recorded on the recording medium,
An exterior case,
A cooling fan disposed in the exterior case;
An air inlet that is formed in a region on the photographer side of the outer case at the time of photographing, and sucks external air by driving the cooling fan;
An exhaust port that is provided in the exterior case and discharges airflow generated by driving the cooling fan;
With
An information recording / reproducing apparatus in which a plurality of the air inlets are formed.   The information recording / reproducing apparatus according to claim 1, wherein the plurality of air inlets and the cooling fan are connected by a ventilation duct.   The information recording / reproducing apparatus according to claim 2, wherein the ventilation duct has a streamlined flow path through which air sucked from the intake port passes.   A battery mounting portion for detachably mounting a battery is formed on a surface of the outer case facing the photographer at the time of shooting, and the battery mounting portion includes a battery mounting area to which the battery is mounted, and the battery mounting area. An attachment / detachment region for attaching / detaching a battery to / from the battery, and at least one of the intake ports is formed in the attachment / detachment region. Information recording / reproducing apparatus.   The information recording / reproducing apparatus according to any one of claims 1 to 4, wherein at least one of the air inlets is formed at a position of the outer case facing the cooling fan. A circuit board disposed in the outer case and mounted with an integrated circuit for signal processing;
A lens unit disposed in the exterior case and receiving an optical image of a subject;
Further comprising
6. The circuit board according to claim 1, wherein a surface on which the integrated circuit is mounted is disposed at a position below the lens portion at the time of photographing so that the surface on which the integrated circuit is mounted is substantially horizontal at the time of photographing. The information recording / reproducing apparatus according to Item. Further provided with a support body disposed in the outer case and supporting the disk drive;
The information according to any one of claims 1 to 6, wherein the support body separates the imaging unit side and the disk drive side and blocks air flow between the imaging unit side and the disk drive side. Recording / playback device.   The information recording / reproducing apparatus according to claim 7, wherein the support is molded. The recording medium is an optical disc;
9. The information recording / reproducing apparatus according to claim 7, wherein the support supports an optical disc drive. The recording medium is an SD memory card;
A circuit board for an SD memory card disposed in the outer case;
An SD connector disposed in the outer case and receiving the SD memory card and electrically connecting to the SD memory card circuit board;
Further comprising
The information recording / reproducing apparatus according to any one of claims 1 to 9, wherein the SD connector has an SD memory card insertion slot formed at an upper position during photographing.   11. The information according to claim 10, wherein when the SD memory card is received by the SD connector, a surface on which a connection terminal with the SD connector is formed is substantially parallel to a surface facing the photographer at the time of shooting. Recording / playback device.

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