JP2011141923A - Optical disk playback apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To radiate heat produced inside a casing in a disk playback apparatus, and to improve the appearance thereof. <P>SOLUTION: A BD playback apparatus is equipped with: a display device; and a main apparatus 4 having a BD disk playback portion 41. Inside the main apparatus 4, a control board 42 which produces heat during operation of the apparatus and a heat sink located on the lower side of the control board 42 are stored in addition to the BD disk playback portion 41. A lid 11 and a recess 12 to store the lid 11 therein are provided on an upper surface of the casing of the main apparatus 4. On rising parts 12a-12c of the recess 12, air holes 61 penetrating to the inside of the casing of the main apparatus 4 are formed. A clearance for circulating outside air inside the casing of the main apparatus 4 via the air holes 61 when the lid 11 is closed is retained between the lid 11 and the recess 12. Heat produced from the control board 42 is conducted to the heat sink provided on the lower side of the control board 42, the heat on the heat sink raises from an outer periphery of control board 42, and is radiated to the outside via the air holes 61. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an optical disk reproducing apparatus having an air hole for dissipating heat generated in an apparatus main body casing.

  Conventionally, a reproducing apparatus in which an air hole for dissipating heat generated from a microcomputer or the like stored inside the apparatus main body casing is provided in the casing. This type of reproducing apparatus has a problem that air holes provided in the housing are often conspicuous and have poor appearance. However, when the air hole is not provided in the housing of the playback device, the temperature of the inside of the housing rises to a predetermined level or more, and the microcomputer stored in the housing may break down.

  On the other hand, Patent Document 1 discloses a disc player that increases the cooling effect of the disc cover by providing a slit in the disc mounting portion cover. However, this disk player cannot radiate the heat generated by the microcomputer or the like inside the apparatus main body casing, and thus cannot solve the above problem.

  Patent Documents 2 and 3 disclose a disk device in which a hole is provided on the outer peripheral side of the disk mounting portion to form a vent hole. However, in these disk devices, the air holes are provided at positions that are easily visible to the user, so that the appearance is bad and the above problem cannot be solved.

Patent 3127942 JP 2001-155479 A JP 2006-66021 A

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an optical disc reproducing apparatus that can dissipate heat generated in the housing of the apparatus main body and has a good appearance.

  In order to achieve the above object, the invention according to claim 1 is characterized in that a control board that generates heat during operation of the apparatus is stored in the apparatus main body casing, and a lid that can be opened and closed, and a recess for accommodating the lid. An optical disk reproducing device provided outside the apparatus main body casing, wherein an air hole penetrating the inside of the apparatus main body casing is formed in a rising portion of the concave portion.

  Further, the invention of claim 2 is the optical disc reproducing apparatus according to claim 1, wherein when the lid is stored in the recess, the device is interposed between the lid and the recess via the air hole. A gap for circulating the outside air is secured inside the main body casing.

  The invention of claim 3 is the optical disk reproducing apparatus according to claim 1 or 2, further comprising a rotation drive unit for rotating the optical disk, wherein the air hole is air generated by rotation of the optical disk by the rotation drive unit. It is formed in the vicinity of the negative static pressure location by the flow.

  According to the first aspect of the present invention, since the air hole penetrating the inside of the apparatus main body housing is formed in the rising portion of the recess for storing the lid, the lid is stored in the recess (the lid is closed). The air holes are not noticeable not only when the lid is opened but also when the optical disk playback device looks good. Further, since the air hole is provided in the apparatus main body casing, heat generated from the control board or the like inside the apparatus main body casing can be radiated. In general, when a molding error or the like is taken into consideration, a gap is necessarily formed between the lid and the recess when the lid is closed. With the configuration in which the hole is provided, even when the lid is closed, the hot air from the inside of the apparatus main body housing can be surely exhausted from the gap between the lid and the recess through the air hole. it can.

  According to the invention of claim 2, the effect of claim 1 can be obtained accurately.

  According to the invention of claim 3, since the air hole is formed in the vicinity of the negative static pressure portion, the outside air can be sufficiently sucked into the housing from the air hole.

The perspective view which shows the BD reproducing | regenerating apparatus concerning embodiment of this invention. The perspective view of the main body apparatus of the said BD reproducing | regenerating apparatus. The schematic sectional drawing of the air hole vicinity of the said main body apparatus. The schematic sectional drawing of the air hole vicinity in the state which closed the cover of the said main body apparatus. The schematic sectional drawing of the air hole vicinity which shows the modification of the air hole formed in the standing part of the said main body apparatus.

  A portable Blu-ray disc playback apparatus (optical disc playback apparatus) according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a portable Blu-ray disc playback device (hereinafter referred to as BD playback device) 1.

  The BD playback device 1 includes a display device 2 having a display 21 for displaying video, and a main body device 4 having a BD disc playback unit (rotation drive unit) 41 that reads data by rotating an optical disc. A lid 11 is provided on the upper part of the housing of the main unit 4, and FIG. 1 shows a state in which the lid 11 is closed. The display device 2 and the main device 4 are connected via a hinge mechanism 5. The hinge mechanism 5 holds the display device 2 so as to be rotatable about the A axis as indicated by an arrow R in the drawing, and holds the display device 2 so as to be opened and closed in the direction of the arrow B.

  FIG. 2 shows the main body device 4 in a state where the lid 11 is opened. Inside the housing of the main unit 4, in addition to the BD disc playback unit 41, a control board 42 on which a microcomputer or the like for controlling various operations is placed, and heat generated from the control board 42 is diffused. A heat radiating plate 43 (see FIG. 3) is stored. In the figure, reference numeral 41a denotes a Blu-ray disc placed on top of the BD disc playback unit 41, and reference numeral 41b in the figure reads data by irradiating the Blu-ray disc 41a with laser light. Show the pickup. The control board 42 generates heat when the microcomputer is in operation. The control board 42 is located below the BD disc reproducing unit 41, and the heat sink 43 is located below the control board 42.

  On the upper surface of the housing of the main unit 4, there are provided a lid 11 that can be opened and closed around the B axis in the figure and a recess 12 for housing the lid 11. The lid 11 closes the exposure of the optical disc mounted on the BD disc reproducing unit 41 by being housed in the closed state, that is, in the recess 12. Air holes 61 are formed in the rising portions 12 a to 12 c of the recess 12 so as to penetrate the inside of the housing of the main body device 4.

  Next, the air flow path in the air hole 61 will be described with reference to FIGS. 3 shows a schematic cross section near the air hole 61 formed in the rising portion 12a when the lid 11 is open, and FIG. 4 shows the vicinity of the air hole 61 formed in the rising portion 12a when the lid 11 is closed. The schematic cross section of is shown. P in the figure indicates a corner near the rising portion 12 a in the housing of the main body device 4.

  As shown in FIG. 4, between the lid 11 and the recess 12, when the lid 11 is housed in the recess 12, that is, when the lid 11 is closed, the housing of the main body device 4 is connected via the air hole 61. A gap S for circulating the outside air is secured.

  Heat generated during operation of the control board 42 is conducted to the heat radiating plate 43 provided at the lower part of the control board 42, and the heat from the heat radiating plate 43 flows upward from the outer periphery of the control board 42 to the upper part inside the housing. And reaches the outside through the gap S from the air hole 61 located in the upper part inside the housing. That is, the heat from the heat radiating plate 43 goes from the outer periphery of the control board 42 to the upper part inside the housing along the direction of the white arrow in the figure. And it gathers in the corner P vicinity inside a housing | casing, and is thermally radiated outside through the clearance gap S from the air hole 61. FIG. In addition, although the air flow path by the air hole 61 formed in the rising part 12a was demonstrated here, the air flow path by the air hole 61 formed in the rising parts 12b and 12c is also formed in the rising part 12a. Since it is the same as the air hole 61 made, the description is omitted.

  Further, the air flow generated by the rotation of the optical disk by the BD disk reproducing unit 41 causes the air hole 61 formed in the rising portion 12b to be near the negative static pressure portion, so that the air suction effect is more effective than other portions. It is large and can sufficiently suck outside air into the housing.

  Next, a modified example of the air hole 61 formed in the rising portion 12a will be described with reference to FIG. As shown in FIG. 5, the air hole 61 may be formed in the edge portion E of the rising portion 12 a in the recess 12. Similarly, air holes 61 may be formed in the edge portions of the rising portions 12b and 12c in the air holes 61 formed in the rising portions 12b and 12c.

  As described above, in the BD playback device 1 according to the present embodiment, the air hole 61 penetrating the inside of the housing of the main body device 4 is formed in the rising portions 12 a to 12 c of the recess 12 for housing the lid 11. Therefore, the air hole 61 becomes inconspicuous not only when the lid 11 is housed in the recess 12 (with the lid closed) but also when the lid 11 is opened, and the appearance of the BD playback device 1 is improved. Will be better.

  In addition, since the air hole 61 is provided in the housing of the main device 4, heat generated from the control board 42 and the like inside the housing of the main device 4 can be radiated. In general, when a molding error or the like is taken into consideration, a gap S is necessarily formed between the lid 11 and the recess 12 when the lid 11 is closed. Since the air holes 61 are provided in the rising portions 12a to 12c, the hot air from the inside of the housing of the main body device 4 can be transferred to the recesses of the lid 11 through the air holes 61 even when the lid 11 is closed. Thus, the air can be reliably exhausted from the gap S between the two.

  In addition, since a gap S is inevitably formed between the lid 11 and the recess 12, heat generated from the control board 42 and the like inside the housing of the main body device 4 can be radiated accurately.

  Further, since the air hole 61 is formed in the vicinity of the negative static pressure location inside the housing of the main body device 4, the outside air can be sufficiently sucked into the housing from the air hole 61, and the heat generation inside the housing is generated. Can be efficiently dissipated.

  Further, the heat from the heat radiating plate 43 collects as an upward flow from the outer peripheral portion of the control board 42 at the corner P inside the housing located near the heat radiating hole 61. Since heat is radiated from the heat radiating hole 61 located in the vicinity of the corner P, the heat generated inside the housing can be radiated efficiently.

  Further, as shown in FIG. 5, by forming the air hole 61 in the edge portion of the rising portions 12a to 12c, even when the lid 12 is opened, the air hole 61 is further inconspicuous, and the BD reproducing apparatus The appearance of 1 is improved.

  In addition, this invention is not restricted to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not change the meaning of invention. For example, in the above embodiment, an example in which the optical disk playback device in the claims is a BD playback device has been described. However, the optical disk playback device is not limited to this, and may be a DVD player, for example.

  In addition, the BD playback device has a rising portion near the outer edge portion of the main body device, and an air hole is formed in the rising portion, thereby increasing the heat radiation effect by sucking and exhausting outside air from the upper four corners inside the housing. It may be a thing.

1 BD playback device (optical disk playback device)
4 Main Device 11 Lid 12 Recess 41 BD Disc Playback Unit (Rotation Drive Unit)
42 Control board 61 Air hole 12a-12c Standing part S Crevice

Claims (3)

A control board that generates heat during operation of the apparatus is stored inside the apparatus main body casing, and a lid that can be opened and closed, and a recess for storing the lid are provided outside the apparatus main body casing. A device,
An optical disk reproducing apparatus characterized in that an air hole penetrating into the inside of the apparatus main body casing is formed in the rising part of the recess.   A gap is provided between the lid and the recess to allow outside air to flow through the air hole into the apparatus body housing when the lid is stored in the recess. 2. The optical disk reproducing apparatus according to claim 1, wherein A rotation drive unit for rotating the optical disc;
The optical disk reproducing apparatus according to claim 1, wherein the air hole is formed in the vicinity of a negative static pressure portion caused by an air flow generated by rotation of the optical disk by the rotation driving unit.

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