JP2002008361A - Video signal recording and/or reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a sound insulation effect in a video signal recording and/or reproducing device which incorporates a hard disk drive. SOLUTION: The disk drive 9 which is incorporated within a casing body of equipment 1 is fixed to an attaching base 41, the attaching base 41 is fixed onto a lower side circuit board 7 at a required interval via leg pieces 41b, 41c, and an upper circuit board 6 is arranged by being supported with supporting members 42, 46 so as to provide a required interval between the circuit board 16 and the upper surface side of the hard disk drive 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a video signal recording and / or reproducing apparatus incorporating a hard disk drive.

[0002]

2. Description of the Related Art Hitherto, hard disk drives have been used mainly in personal computers. Basically, personal computers were often used in offices.

On the other hand, in recent years, the storage capacity of a hard disk drive has dramatically increased, the cost has been reduced, and the digitization of various electronic devices has led to hard disk drives becoming video recording / reproducing devices, audio recording / reproducing devices, game machines, and the like. It has been considered to be mounted on many electronic devices such as televisions and set-top boxes.

However, a personal computer used in an office and an electronic device used in a home are different from each other in terms of usage, installation location, quietness, temperature rise, impact resistance, and the like. The electronic devices used are much more demanding.

For example, in a video recording / reproducing apparatus or an audio recording / reproducing apparatus, if a hard disk drive emits noise at the time of a quiet scene at the time of movie reproduction or pianissimo of music, it becomes very intriguing.

In the case of reproduction while writing in a hard disk drive, for example, when a television program is watched with a delay of 5 minutes, the contents of the broadcast 5 minutes ago are recorded while the currently broadcasted program is recorded in the hard disk drive. The reading is repeated, and in this case, the head moves back and forth on the disk, generating loud noise.

For example, in a video recording / reproducing apparatus or an audio recording / reproducing apparatus, when it is stored in a shelf or the like together with an amplifier and an MD deck, it is preferable that the size and the shape are similar to those of other devices. It is necessary to be able to generate heat even if the side is closed inside. Furthermore, it is necessary to withstand shocks and drops in the same manner as when carrying ordinary amplifiers and VCRs.

[0008]

SUMMARY OF THE INVENTION The present invention is to replace a hard disk drive originally used for a personal computer which is originally an office equipment with a video signal recording and / or reproducing apparatus which is an electronic equipment used at home. The purpose of this is to solve the problem that arises.

[0009]

According to the present invention, there is provided a video signal recording and / or reproducing apparatus having a hard disk drive built in a housing, the housing having a large rectangular surface on an upper surface. It is a substantially rectangular parallelepiped, closed at least from the front side to the top side, and is configured such that the hard disk drive device is disposed at a substantially central portion between upper and lower circuit boards having substantially the same size as the largest surface of the housing.

The present invention also relates to a video signal recording and / or reproducing apparatus having a hard disk drive device built in a housing, wherein the hard disk drive device is provided at a substantially central portion on a circuit board substantially the same size as the largest surface of the housing. The sound-insulating material is arranged at a required interval on the upper surface side of the hard disk drive.

In the above configuration, one or a plurality of hard disk drive devices are arranged in a vertical position on a circuit board,
It is possible to adopt a configuration in which soundproofing materials are arranged at predetermined intervals above and in front of the hard disk drive.

As described above, in the video signal recording and / or reproducing apparatus according to the present invention, the hard disk drive is arranged at a substantially central portion between the upper and lower circuit boards having substantially the same size as the maximum surface of the housing. The drive operation sound emitted from the hard disk drive device is blocked by the upper and lower circuit boards, preventing transmission to the outside, improving the soundproofing effect,
Since the device can be used comfortably and does not use a soundproofing material, the device can be made thinner.

Further, the hard disk drive device is disposed at a substantially central portion on a circuit board having substantially the same size as the largest surface of the housing,
By arranging the soundproofing material on the upper surface side of the hard disk drive, the soundproofing effect is further improved.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. First, FIG.
Referring to FIG. 8, a first embodiment will be described. In this embodiment, a digital video recorder of a hard disk recording type is shown as an example of a video signal recording and / or reproducing device having a built-in hard disk.

The video signal recording and / or
Alternatively, the playback device has a configuration in which one or a plurality of hard disk drive devices are arranged at a substantially central portion of a substantially rectangular parallelepiped housing structure having a large rectangular surface on an upper surface, so that an impact upon drop of the device can be obtained. It is located farthest from the four corner legs on the lower surface side, which increases the shock resistance. In addition, the vibration generated by the hard disk drive device is equally received by the four corner legs, and the vibration is sent to the outside It is difficult to convey.

Further, in the device of the present embodiment, the hard disk drive device is disposed in the housing structure at substantially the center of the upper and lower circuit boards substantially the same size as the largest surface of the housing, and the upper and lower circuit boards can be used as soundproofing materials. It is used to improve the soundproofing effect. In addition, the hard disk drive device is arranged on the circuit board, soundproofing materials are provided above and in front of the hard disk drive device to further improve the soundproofing effect, and by providing a required interval between the hard disk drive device and the soundproofing material, And air cooling at the same time.

In the apparatus of this embodiment, an intake fan is disposed as a first fan between the tuner circuit unit and the hard disk drive in the housing structure, and a second fan is disposed behind the power supply circuit unit. Air cooling fan to cool the tuner circuit unit, which is most vulnerable to temperature rise, and then to cool the metal plate side, which is the surface side of the hard disk drive, and It is configured to generate a flow of air that flows between circuit components and is discharged to the outside, thereby improving a cooling effect in the housing structure. In addition, vents are formed on the lower surfaces of the side and front portions of the housing structure as intake holes, and the side surfaces are formed in a V-shape in cross section, and vents are formed in the valleys. Intake is ensured when stored on a shelf or the like, and even when the side surface is in close contact with the inner wall of the shelf, intake can be ensured by a through hole on the lower surface of the front portion.

Further, the housing structure is a thin and substantially rectangular parallelepiped, and sufficient cooling can be performed by an intake fan and an exhaust fan even when members such as a hard disk drive are arranged between large upper and lower circuit boards. It is.

FIG. 1 is an external view of an apparatus according to the first embodiment. The housing of the device 1 has a substantially rectangular parallelepiped shape having a large rectangular surface on the top side, and various operation buttons 3 such as a power button 2, a recording button, and a program button are provided on a front end of the front panel 11 on the front side of the housing. Are provided, and a power supply display section 4 that illuminates when the power is turned on is provided in the center of the front panel 11.

FIG. 2 is an exploded view of the present apparatus. In the figure, reference numeral 5 denotes a chassis which forms a base of the apparatus. Circuit boards 6 and 7 on which electronic circuit components are mounted are vertically arranged and fixed on the chassis 5, and a power supply is located between the circuit boards 6 and 7. A circuit unit 8, a hard disk drive device 9 as a recording medium driving device incorporating a hard disk as a recording medium, a tuner circuit unit 10, and the like are arranged and fixed.

A plurality of exterior panels, that is, a front panel 11 on the front side, left and right side panels 12, a top plate 13 and a rear plate 14 are combined and fixed to the chassis 5 so as to surround the chassis 5, and the exterior housing is assembled. Make up.

The housing structure will be further described.
In the chassis 5, a side plate portion 5b is integrally formed on the surface side end of a bottom plate portion 5a as a main plate portion, and a front edge side of the bottom plate portion 5a is formed.
The front plate 15 formed of the same metal plate as the chassis 5 is attached by fixing the lower edge flange portion 15a thereof to the front edge flange portion 5c of the bottom plate portion 5a of the chassis 5. The left and right side panels 12 are attached to the chassis 5.
Are mounted by hooking hook pieces 16a projecting from the front and rear of the lower portion on the inner surface side into engagement holes 17a formed in the side plate portion 5b of the chassis 5. further,
Protrusions 16b are protrudingly provided at the front and rear portions on the inner side of the left and right side panels 12, and between the front protrusions 16b,
An upper edge flange portion 15b of the front plate 15 attached to the chassis 5 is bridged, and a stay 18 is bridged between the rear projecting pieces 16b and fixed by screwing.

The front panel 11 has a mounting plate portion 11d extending above the inner surface thereof, a lower surface plate portion 11e extending horizontally from a lower edge, and a rear edge of the lower surface plate portion 11e of the chassis 5. Attach the mounting plate 1 to the front edge of the bottom
1d is an upper edge flange portion 15b of the front plate 15 of the chassis 6.
And fixed with screws. Also, the top plate 13
Are fixed to the upper edge flange 15b and the stay 18 of the front plate 15 by screwing, and the rear plate 14 is fixed to the rear edge of the chassis 5 by screwing.

In this housing structure, the left and right side panels 12 are formed in a substantially rectangular cross section to form ventilation holes 12a in respective valleys.
a corresponding one of the side plate portions 5b of the chassis 5
Is formed with a notched concave portion 17b, and the other side plate portion 5b is formed with a vent hole 17c. Vent holes 17d and 11f are also formed in the bottom plate 5a, which is the main plate of the chassis 5, and the lower plate 11e of the front panel 11, respectively.

In this case structure, an aluminum plate is used for each of the front panel 11, the left and right side panels 12 and the top plate 13, and the surface thereof is subjected to a hairline processing to give a sense of quality.

In the apparatus having such an exterior structure, in this embodiment, the front panel 11 and the left and right side panels 1 are provided.
As shown in FIG. 4, a structure is adopted in which the portion combined with No. 2 is cut at an inclination corresponding to each other.

In this case, since the front panel 11 and the side panel 12 are combined at a right angle, the end surfaces 11A and 12A, which are the mating surfaces, are cut at an inclination of 45 °, and the cut surfaces are joined to join the two. There is.

With this structure, the front panel 11 and the left and right side panels 12
Since the thickness of each panel (aluminum plate) is not visible on the surface in the combination portion with the above, it is possible to realize a clean and beautiful appearance in design.

Further, in this structure, the contact area of the combined portion of the front panel 11 and the side panel 12 can be increased, so that the shielding property of the housing is increased, which is advantageous against unnecessary radiation and the like.

In this embodiment, only the combined portion of the front panel 11 and the side panel 12 is cut at an angle corresponding to each other, but this structure is combined with the combined portion of the front panel 11 and the top plate 13 and the side panel 1.
It is needless to say that the present invention can be applied to a combination portion of 2 and the top plate 13.

At the right end of the front panel 11, a cursor button arrangement section 20 is provided as shown in an enlarged manner in FIG.

As operation buttons shown here, 21 is a cursor button for leftward movement, 22 is a cursor button for rightward movement, 23 is a cursor button for upward movement, and 24 is a cursor button for downward movement. Yes, and 25 is an OK button. Cursor buttons 21, 22, 23, 24 are set buttons 25
Are arranged in the shape of a cross at substantially equal intervals around the center, so as to constitute a so-called cross cursor, and are formed in the shape of an arrow indicating the direction of movement of each cursor.

Reference numeral 26 denotes a menu display button, and 27 denotes a list display button. When the menu display button 26 or the list display button 27 is pressed, the cursor on the screen is pressed by pressing the cursor buttons 21 to 24 in the contents displayed on the screen. By moving the button and pressing the determination button 25, the content is selected.

In the apparatus of this embodiment, as an arrangement structure of these operation buttons, the front panel 11 is formed in a V-shaped vertical cross-sectional shape such that the center is concave, and the center portion of the valley bottom portion 11a is provided for movement in the left-right direction. Cursor buttons 21 and 22, a determination button 25, a menu display button 26, and a list display button 27, and cursor buttons 23 and 24 for vertical movement are arranged on upper and lower inclined surfaces 11b and 11c, respectively. Have been.

In particular, in this configuration, the cursor buttons 21 and 2 for moving in the left-right direction are provided on the resin member 30 as a convex portion protruding from the central valley bottom portion 11a of the front panel 11.
2. Provided with a determination button 25, a menu display button 26, and a list display button 27, and are respectively moved up and down on resin members 31 and 32 as protrusions protruding from upper and lower inclined surfaces 11b and 11c of the front panel 11. Cursor button 2 for
3 and 24 are provided.

Next, the internal structure of the apparatus 1 of the present embodiment will be described with reference to FIGS. 2, 3, and 6 to 8. FIG.

The power supply circuit unit 8, the hard disk drive 9, the tuner circuit unit 10, and the like are disposed in the housing configured as described above.
The hard disk drive 9 is mounted on the lower circuit board 7 via a mounting base 41.

As shown in FIG. 7, the mounting base 41 has a quadrilateral shape which is a mounting and fixing surface of the hard disk drive 9, in this example a rectangular main plate portion 41a. In this example, the leg pieces 41b and 41c are formed by bending to the required height downward on both opposite short sides, and stand on one of the long sides facing in the other direction, in this example, the long sides facing each other. The raised side surface 41d is bent downward on the other long side to form the falling side surfaces 41e, and the upper side circuit board 6 is supported at a required interval on the falling side surfaces 41e. A support leg piece 42 to be fixed is formed upright. The main plate portion 41a of the mounting base 41 has a through hole 4 through which a circuit component mounted on the circuit board of the hard disk drive device 9 faces and a screw insertion hole 4 for fixing the device.
3 are also formed, and through holes 44 for mounting screws are also formed in the ground surfaces of the leg pieces 41b and 41c.

The hard disk drive 9 is mounted and positioned on the main plate portion 41a on the mounting base 41 thus formed, and is fixed by inserting a screw into the insertion hole 43 from the back side and tightening.

As described above, the hard disk drive 9
Is fixed to a predetermined portion of the lower circuit board 7 by screwing the leg pieces 41b and 41c. By fixing the mounting base 41 to the circuit board 7 in this manner, the main plate portion 4 of the mounting base 41 is
The leg pieces 41b and 41c are provided between the base plate 1a and the board surface of the circuit board 7.
Is generated, and not only interference with circuit components on the circuit board 7 is prevented but also ventilation is possible.

In this embodiment, two hard disk drives 9 are fixed to the lower circuit board 7 in this manner. The lower circuit board 7 is mounted on the bottom plate 5 a of the chassis 5.
Above, and fixed by screwing is placed on the bottom plate portion 5a plurality of supporting protrusions 5a ₁ provided in raised form, the supporting projection 5a Between the circuit board 7 and the chassis bottom plate portion 5a An interval equal to the height of ₁ is created to allow ventilation. In addition, chassis 5
Changing from the bottom portion 5a on supporting protrusion 5a ₁ to raised together, and fixing the support member separately from the bottom portion 5a, it is possible to fix the circuit board 7 of the lower side.

The chassis bottom plate 5 of the circuit board 7
a to the hard disk drive 9
Are arranged substantially at the center of the chassis 5. In the present example device, two hard disk drive devices 9 are arranged as described above. Therefore, these two hard disk drive devices 9 are installed horizontally on the circuit board 7 in the front-rear direction, and are located almost in the center of the chassis 5. And place it,
It is designed to balance front, back, left and right.

As described above, in order to install two hard disk drive devices 9 on the circuit board 7, the hard disk drive devices 9 are mounted on the mounting base 4 as described above.
1 and the circuit board 7 via the mounting base 41.
Fixed to. In this example, the support leg piece 42 is fixed to the rear mounting base 41 on one side, but the support leg piece is not fixed to the front mounting base 41 on the other side, For this reason, a supporting leg 46 having the same height as the supporting leg 42 is fixedly mounted on the circuit board 7. In this case, the support leg 42 may be fixed to the front mounting base 41, and the support leg on the circuit board 7 side may be omitted.

The power supply circuit unit 8 includes a chassis 5
In this example, the power supply circuit board 45 is mounted and mounted on the bottom plate portion 5a separately from the circuit board 7 described above.

On the upper surface side of the chassis 5 on which the power supply circuit unit 8 and the bird disk drive device 9 are arranged, the upper circuit board 6 is arranged and fixed. The arrangement and fixing of the upper circuit board 6 is performed by the mounting base 41 described above.
And mounted on the upper support surface of the support leg 46 fixed to the support leg 42 and the lower circuit board 7 and fixed by screws. On the inner surface side of the upper circuit board 6, that is, on the side facing the lower circuit board 7, the tuner circuit unit 10 is opposite to the power supply circuit unit 8 with the hard disk drive device 9 interposed therebetween. Mounted on the unit. The tuner circuit unit 10 is also provided with a BS tuner circuit and the like, and an analog circuit, an analog / digital conversion circuit and the like are mounted on the upper circuit board 6.

The chassis 5 contains a cooling intake fan 51 and an exhaust fan 52 for cooling, and the intake fan 51 is arranged on a component side having a relatively small amount of heat generation. The fan 52 is disposed on the side of the component that generates a large amount of heat.

That is, in this example, the intake fan 51
Are arranged corresponding to the side of the hard disk drive 9 on the tuner circuit unit 10 side.
The casing 53 of the intake fan 51 is fixed to the lower circuit board 7 in a duct shape in which an upper fan surface 53a is inclined downward toward the hard disk drive device 9 and an intake opening 53b is formed on a higher side surface. And the fan surface 5
3a is opposed to the upper circuit board 6 so as to increase the space in the direction of the hard disk drive 9. A plurality of intake fans 51 can be arranged.

On the other hand, the exhaust fan 52 is disposed at the rear of the chassis 5 behind the power supply circuit unit 8 which generates a large amount of heat.
In 4, the fan portion surface 54 a is located perpendicular to the bottom plate portion 5 a of the chassis 5, and the exhaust opening faces the ventilation hole formed in the back plate 14. Further, legs 55 are mounted near the four corners of the bottom plate portion 5a of the chassis 5.

The apparatus 1 as a hard disk recording type digital video recorder according to the present embodiment having the above-described configuration includes a hard disk drive 9 mounted on a lower circuit board 7 to which the chassis 5 is fixed at a required interval. Is fixed at a required interval via a mounting base 41. An upper circuit board 6 is disposed on the upper surface of the hard disk drive 9 at a required interval.
Is sandwiched between the upper circuit board 6 and the lower circuit board 7 at a required interval in a so-called sandwich shape, so that noise such as operation noise generated from the hard disk drive 9 is reduced by the upper and lower circuit boards. The sound is blocked by 6 and 7, and transmission to the outside is suppressed. In this case, sound insulation members are interposed between the lower circuit board 7 and the mounting base 41, between the hard disk drive 9 and the upper circuit board 6, between the upper circuit board 6 and the top plate 13, and the like. By doing so, the soundproofing effect is further improved.

As the sound insulating structure, a sound insulating member may be attached to the inner surface of the front panel 11, the inner surface of the top plate 13, or the like. The sound insulating member may be a sound absorbing material such as neoprene (registered trademark) sponge. Can be used.

The hard disk drive 9 is
The mounting base 41 is fixed to the mounting base 41.
Are attached to the lower circuit board 7 with the leg pieces 41b, 4 of the required height.
1c, and the lower circuit board 7 is
A support projection 5a is provided on the bottom plate 5a. ₁Or fixed via a support member
By setting, the hard disk drive 9 and
A plurality of layers of space will be formed with the chassis 5.
From the chassis 5 to the hard disk drive 9
The applied shock can be reduced, and the equipment 1 can be transported or installed incorrectly.
The shock when dropped down is reduced without being directly applied.
Damage is prevented.

Further, by driving the cooling intake fan 51 and the exhaust fan 52 disposed in the chassis 5, the ventilation cooling in the chassis 5, that is, the housing of the device 1 is forcibly performed. That is, the driving of the intake fan 51 causes the outside air to enter the front panel 1 inside the housing of the device 1.
1 through a ventilation hole 11f formed in the lower surface plate portion 11e, a ventilation hole 12a formed in the side panel 12, a ventilation hole 17d formed in the bottom plate portion 5a of the chassis 5, a concave portion 17b formed in the side plate portion 5b, and a ventilation hole 17c. The fan part surface 53 of the casing 53 of the intake fan 51 that has been sucked in
a to cool the tuner circuit unit 10 and the like which are circulated obliquely upward from the upper side of the circuit board 6 and are fixed to the upper circuit board 6 side.
The hard disk drive 9 is also cooled by flowing through the space between the lower circuit board 7 and the mounting base 41 of the hard disk drive 9.

On the other hand, when the exhaust fan 52 is driven, the air in the housing of the device 1 is forcibly exhausted. The exhaust fan 52 is disposed on the power supply circuit unit 8 side which generates a large amount of heat. Accordingly, the air around the power supply circuit unit 8 is forcibly exhausted, and the heat generated in the power supply circuit unit 8 is released to the outside and cooled. When the intake fan 51 and the exhaust fan 52 are driven in this manner, the hard disk drive 9 and the upper circuit board 6 and the lower circuit board 7 are connected between the hard disk drive 9 and the upper circuit board 7 by the intake fan 51 in the housing of the device 1. Is circulated to the power supply circuit unit 8 side and is discharged to the outside by the exhaust fan 52, so that each component and member in the housing of the device 1 can be efficiently cooled.

The device 1 of this embodiment incorporates a cooling intake fan 51 and a cooling fan 52,
The cooling efficiency is improved by arranging the intake fan 51 on the side of the component that generates a relatively small amount of heat and the exhaust fan 52 on the side of the component that generates a large amount of heat.

As described above, the apparatus 1 of the first embodiment has one or a plurality of hard disk drives in the substantially central portion of a substantially rectangular parallelepiped housing structure having a large rectangular surface on the upper surface. Since the device 9 is provided, the hard disk drive device 9 has a bottom portion of the housing structure that receives an impact when the device 1 falls, that is, the bottom plate portion 5 of the chassis 5.
Since it is located farthest from each of the legs 55 near the four corners of a, the shock resistance is increased, and it is protected from a shock, thereby preventing breakage and the like.

In particular, when such a device is mounted on a mounting table by a user, one side is lifted up, the other side is grounded first, and then the ground is dropped so that the one side is dropped. Let
Although it is often placed in a so-called cantilever drop state, in the device 1 of the present embodiment, the hard disk drive device 9 is disposed almost at the center of the housing structure, so that one side of the device 1 as shown in FIG. When the side is lifted to a certain height H and the other side is grounded, the height of the central portion where the hard disk drive 9 is disposed is H / 2,
Even if one side is dropped in this state, the impact on the hard disk drive 9 is reduced, and damage or the like is prevented.

When the hard disk drive 9 is driven in a state where the apparatus 1 is mounted on a mounting table and grounded, vibrations are generated.
Since the hard disk drive 9 is disposed substantially at the center of the housing structure, each leg 55 near the bottom of the housing structure, that is, the four corners of the bottom plate 5 a of the chassis 5.
Therefore, the transmission to the outside is suppressed and the user does not feel uncomfortable.

The hard disk drive 9 is
In the housing structure, the upper and lower circuit boards 6 and 7 having an area larger than the surface area of the hard disk drive device 9 are arranged with a required space therebetween, so that the two circuit boards 6 and 7 are disposed. It also acts as a soundproofing material and suppresses transmission of noise such as driving noise generated by driving the hard disk drive device 9 to the outside, so that the user does not feel uncomfortable.

As described above, equipment used at home must be driven quietly, and in order to prevent transmission of this drive sound to the outside, a soundproofing material must be built in, so that video recorders and audio equipment for home use In the case of a housing structure having a thin rectangular shape similarly to the above, there is a problem in securing a space for incorporating a soundproofing material, but in the device 1 of the present embodiment, the circuit boards 6 and 7 are arranged above and below the hard disk drive device 9. By using this as a soundproofing material, this difficulty is solved and the soundproofing effect is improved.

Then, the device of this example is constructed in a housing structure.
An intake fan 5 as a first fan is provided between the tuner circuit unit 10 and the hard disk drive 9.
1 and the exhaust fan 52 as a second fan is disposed on the rear side of the power supply circuit unit 8, so that external air is formed on the side panel 12 of the housing structure by driving the intake fan 97. The tuner circuit unit 10 which flows through the air holes 12a and the air holes 11f formed in the lower plate portion 11e of the front panel 11 and is vulnerable to temperature rise.
And the air flows along the surface of the hard disk drive 9 through the intake fan 51 to cool the surface metal plate side.

As described above, the air flowing while cooling the hard disk drive 9 flows to the power supply circuit unit 8 side, circulates and cools between the circuit components, and is discharged to the outside by the exhaust fan 52.

As described above, the inside of the casing structure of the apparatus 1 is cooled by the forced flow of air, and the temperature of the tuner circuit unit 10 is 55 ° C.
The heat generation temperature of the hard disk drive 9 is kept below 60 ° C, and the heat generation temperature of the power supply circuit unit 8 is kept almost 100 ° C. Satisfactorily cleared the severe heat-resistant conditions.

In the apparatus 1 of this embodiment, the ventilation holes of the housing structure are formed on the side surface and the lower surface of the front part.
The side panel 12 is formed in a V-shape in cross section, and the vent hole 12a is formed in its valley, so that the air intake can be secured even when the device 1 is stored and installed on a shelf or the like.
Even when the device 1 is housed and installed with the side surface in close contact with the inner wall of the shelf, ventilation is ensured by the ventilation holes 11f formed in the lower surface plate 11e of the front panel 11, so that the device 1 is always irrespective of the installation location. Air circulation cooling can be reliably performed.

Further, the hard disk drive device 9 in which the device 1 of the present embodiment is built in a substantially rectangular parallelepiped shape having a thin housing structure is arranged between the circuit boards 6 and 7 having large upper and lower areas. By driving the fan 52, the air flows smoothly between the two circuit boards 6 and 7 and is reliably cooled.

Next, a second embodiment of the present invention will be described with reference to FIGS. This second embodiment also shows a hard disk recording type digital video recorder as a video signal recording and / or reproducing apparatus.
In this example, one or a plurality of hard disk drives are arranged vertically.

FIG. 10 is an external view of the device of the second embodiment in a partially disassembled state, and FIG. 11 is a vertical sectional side view of the device of the second embodiment. As shown in FIG. 10 and FIG.
Has a substantially rectangular parallelepiped shape having a large rectangular surface on the upper surface side, and a front panel 63 on the front has various operation buttons 65 such as a power button 64, a recording button, and a program button.
And a display unit 66 are arranged. An opening 68 for inserting and removing the hard disk drive is formed at a substantially central portion of the top plate 67 corresponding to an arrangement portion of the hard disk drive to be described later. It is fixed and closed. In addition,
The opening 68 of the top plate 67 is formed with a step receiving surface 68a for closely fitting the cover plate 69 from above.

Further, ventilation holes 72 are formed in both side plates 71, ventilation holes (not shown) are formed in one side of the bottom plate 73, and legs 74 are provided in the vicinity of the four corners on the lower surface. Is installed. An exhaust port (not shown) is formed in the rear plate 75 in correspondence with an exhaust fan described later.
On the inner side of the housing 62, from the front side to the upper side, in this example, the inner side of the front panel 63 and the cover plate 6
A soundproof material 76 made of rubber, sponge material, or the like is adhered to the inner surface of 9.

Next, the apparatus 61 of the present embodiment configured as described above.
The internal structure of the housing 62 will be described with reference to FIGS. 11, 12, and 13. FIG. A chassis 77 is fixed to an upper surface of a bottom plate 73 of the housing 62, and a circuit board 78 is mounted on the chassis 77.

A plurality of hard disk drives 90 are mounted on the circuit board 78 at a position substantially at the center of the housing 62 at a required interval in the front-rear direction at a vertical position, and as shown in FIG. Corresponding to the opening 68.

The plurality of hard disk drive devices 9
In the present example, the 0s are arranged in a zigzag shape, each of which is slightly swung to both sides, but may be arranged in a line. As shown in FIG. 13, the loading arrangement portion on the circuit board 78 of each hard disk drive device 90 is disposed on the circuit board 78 at the position where the respective hard disk drive device 90 is arranged. Connector 92 is arranged corresponding to the
For example, a guide holding frame 93 having, for example, a U-shaped cross section is opposed and fixed on both sides with the support 2 interposed therebetween. Each of the hard disk drive devices 90 is provided with the guide holding frame 9.
3 and the connector portion 91 is fitted and connected to the connector 92 to be loaded. The loading of each hard disk drive device 90 is performed by inserting the hard disk drive device 90 through the opening 68 of the top plate 67 of the housing 62 as shown in FIG. In order to reinforce and stabilize the guide holding frame 93, all the guide holding frames 9 are used.
The three members are connected by a connecting member 94.

As described above, the plurality of hard disk drive devices 90 mounted and arranged on the circuit board 78 in the vertical position have the soundproofing material on the inner surface side of the front panel 63 on the front side of the arrangement row as shown in FIGS. The upper surface corresponds to the soundproofing material 76 on the inner surface of the cover plate 69, and the transmission of noise such as driving noise generated by driving the hard disk drive 90 to the outside of the housing 62 is prevented.

Also, in the apparatus 61 of the present embodiment, a power supply circuit unit, a tuner circuit unit, and a cooling fan are built in a housing 62 as in the apparatus 1 of the first embodiment. The power supply circuit unit 95 is mounted and mounted on one side of the circuit board 78, that is, on the left side in the illustrated example, on the side corresponding to the power supply button 64 disposed on the front panel 63 described above. Is the operation button 6 on the other side of the circuit board 78, in the illustrated example, on the right side.
5 is mounted and arranged on the side corresponding to 5.

The housing 62 has a built-in intake fan 97 and an exhaust fan 98 as cooling fans, and the intake fan 97 is provided on the circuit board 78 on the tuner circuit unit 96 side of the hard disk drive 90. The suction fan 97 has a duct-like circuit in which a fan portion 97a is inclined low toward the hard disk drive device 90 and an intake opening is formed on a high side surface of the casing. It is fixed to the substrate 78.

In the intake fan 97, the air flow flowing obliquely upward from the lower side through the space of the hard disk drive 90 because the fan portion 97 a faces the side of the hard disk drive 90 obliquely upward from below. Generated.

On the other hand, the exhaust fan 98 is disposed on the rear side of the housing 62 behind the power supply circuit unit 95 that generates a large amount of heat. And the exhaust opening of the casing faces an exhaust port formed in the back plate 75.

The digital video recorder of the hard disk recording type as the video signal recording and / or reproducing apparatus of the second embodiment configured as described above,
The housing 62 of the device 61 has a substantially rectangular parallelepiped shape having a large rectangular surface on the upper surface side, and one or a plurality of hard disk drive devices 90 are loaded and arranged at a substantially central portion inside the device. 61 is located farthest from the legs 74 in the vicinity of the four corners on the bottom plate 73 side where the impact is caused by the drop of 61, the shock resistance is increased, and the vibration generated by the drive of the hard disk drive device 90 is increased. It becomes difficult to transmit the vibration to the outside by equally receiving the vibration with the leg 74.

Further, the front side and the top side inside the housing 62, in this example, the inside side of the front panel 63 and the inside side of the lid plate 69 that closes the opening 68 for inserting and removing the hard disk drive 90 on the top plate 67 side. The soundproof material 76 is adhered to the hard disk drive device 90 so that the upper soundproof material 7
6 and the circuit board 78 located on the lower side, so that a soundproofing effect is achieved in combination with the soundproofing material 76 on the front side, and a housing for noise such as driving noise generated by driving the hard disk drive 90. The transmission of 62 to the outside is prevented.

In this case, a gap is formed as shown in FIG. 11 between the soundproof material 76 adhered to the inner surface side of the cover plate 69 and the upper surface of the hard disk drive 90, so that a cooling space to be described later is formed in the gap. The cooling effect is improved by the flow of the air, and cooling and soundproofing can be realized at the same time. Also,
The soundproofing material 76 and the hard disk drive 90 may be brought into close contact. In this case, rattling of the hard disk drive device 90 can be further suppressed, and vibration can be suppressed.

The housing fan 62 has an intake fan 9.
By arranging the exhaust fan 7 and the exhaust fan 98 and forcibly generating an airflow, the temperature rise in the housing 62 is suppressed. That is, the intake fan 97 is connected to the hard disk drive 90 and the tuner circuit unit 96.
And the exhaust fan 98 is disposed behind the power supply circuit unit 95, so that the outside air flows in from the vent hole 72 of the side plate 71 of the housing 62 by the driving of the intake fan 97. The tuner circuit unit 9 flows along the tuner circuit unit 95 that is vulnerable to temperature rise.
5 is cooled, and the air flows to the side of the hard disk drive 90 via the intake fan 97.

Since the hard disk drives 90 are arranged at a required distance in the longitudinal direction and in the front-rear direction, air flows through the space to cool the hard disk drive 9, but the hard disk drive 90 has one By arranging the units in a zigzag manner slightly in both sides, the flow of the air becomes smooth and the cooling effect of the hard disk drive device 90 is improved.

As described above, while cooling the hard disk drive device 90, the air flowing through the space flows to the power supply circuit unit 95 side, flows between the circuit components and cools, and is discharged to the outside by the exhaust fan 97. You.

By the forced flow of air in the housing 62, the inside of the housing 62 is cooled. By measuring the temperature of each member, the heat generation temperature of the tuner circuit unit 96 is suppressed to 55 ° C. or less. The heat generation temperature was suppressed to 60 ° C. or less, and the heat generation temperature of the power supply circuit unit 95 was suppressed to almost 100 ° C., which sufficiently cleared the severe heat-resistant condition compared with ordinary consumer equipment.

The embodiment of the present invention has been described above.
The present invention is not limited to this embodiment,
Various changes can be made without departing from the spirit of the present invention.

For example, the shapes of the front panel 11 and the left and right side panels 12 in the exterior of the housing structure, the configuration and the shape of the display unit can be arbitrarily changed without being limited to the embodiment. The shape and the like of each member can be arbitrarily changed.

The present invention is not limited to a hard disk recording type video recorder, but can be applied to a magneto-optical disk recording / reproducing device, a floppy (registered trademark) disk recording / reproducing device, and the like. Applicable. Further, the present invention can be applied to various electronic devices such as an audio recorder, a set-top box, and a personal computer.

[0086]

As described above, the video signal recording and / or reproducing apparatus according to the present invention is constructed by disposing the hard disk drive at substantially the center between the upper and lower circuit boards having substantially the same size as the largest surface of the housing. As a result, the drive operation noise emitted from the hard disk drive device is blocked by the upper and lower circuit boards, preventing transmission to the outside, improving the soundproofing effect, making it possible to use comfortably, and using no soundproofing material, making the device thinner Becomes possible.

Further, the hard disk drive is arranged at a substantially central portion on a circuit board substantially the same as the largest surface of the housing,
By arranging the soundproofing material on the upper surface side of the hard disk drive, the soundproofing effect is further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an external appearance of an example of a device according to the present invention.

FIG. 2 is an exploded perspective view showing the internal structure of the device shown in FIG.

FIG. 3 is a longitudinal sectional view of the device shown in FIG. 1 with a part thereof omitted;

FIG. 4 is a sectional view of a combined portion of a front panel and a side panel of the apparatus shown in FIG.

FIG. 5 is a front view of a cursor button arrangement unit in the device shown in FIG.

6 is a perspective view showing a positional relationship of an internal structure of the apparatus shown in FIG. 1 with a top plate and the like removed.

7 is an exploded perspective view of a part of the internal structure of the device shown in FIG.

8 is a cross-sectional view of the internal structure of the device shown in FIG.

FIG. 9 is an explanatory view of the device shown in FIG. 1 in a falling state.

FIG. 10 is a partially exploded perspective view showing the appearance of another example of the device according to the present invention.

11 is a longitudinal sectional side view of the device shown in FIG.

12 is a perspective view showing the internal structure of the device shown in FIG.

13 is an exploded perspective view of a part of the internal structure of the device shown in FIG.

[Explanation of symbols]

1 ‥‥ device, 5 ‥‥ chassis, 6, 7 ‥‥ circuit board, 8
{Power supply circuit unit, 9} Hard disk drive, 10} Tuner circuit unit, 11 {Front panel, 12} Side panel, 41} Mounting base, 41b, 41c {Leg, 42} Support Leg piece, 4
6 ‥‥ support legs, 51 ‥‥ intake fan, 52 ‥‥ exhaust fan

Claims (9)

[Claims] 1. A video signal recording and / or reproducing apparatus having a hard disk drive device built in a housing, wherein the housing is a substantially rectangular parallelepiped having a large rectangular surface on an upper surface, and is closed at least from a front side to an upper surface side. A video signal recording and / or reproducing apparatus, wherein the hard disk drive device is arranged at a substantially central portion between upper and lower circuit boards having substantially the same size as the largest surface of the housing. 2. The video signal recording and / or recording method according to claim 1, wherein
Or a playback device, wherein the hard disk drive is fixed to a mounting base, the mounting base is fixed on the lower circuit board at a required interval, and the upper circuit board is fixed between the upper circuit board and the hard disk drive. A video signal recording and / or reproducing apparatus supported at a required interval. 3. A video signal recording and / or reproducing apparatus according to claim 1, wherein a plurality of said hard disk drive devices are arranged in a horizontal position. . 4. The video signal recording and / or reproducing apparatus according to claim 1, wherein one or a plurality of said hard disk drives are arranged in a vertical position. Or a playback device. 5. The video signal recording and / or reproducing apparatus according to claim 1, wherein a plurality of the hard disk drives are arranged in a vertical direction at a required interval in a front-rear direction and in a zigzag manner in a horizontal direction. A video signal recording and / or reproducing apparatus characterized in that: 6. A video signal recording and / or reproducing apparatus having a hard disk drive device built in a housing, wherein the hard disk drive device is provided at a substantially central portion on a circuit board having substantially the same size as the largest surface of the housing. A video signal recording and / or reproducing apparatus, wherein a soundproof material is arranged at a predetermined interval on the upper surface side of the hard disk drive device. 7. The video signal recording according to claim 6, and / or
Or a reproducing apparatus, wherein the hard disk drive device is disposed in a vertical position on the circuit board, and a soundproof material is disposed at a required interval above and in front of the hard disk drive device, wherein a video signal recording is provided. And / or a playback device. 8. The video signal recording according to claim 7, and / or
A video signal recording and / or reproducing apparatus, wherein a plurality of the hard disk drive apparatuses are arranged in a vertical direction at a required interval in a front-rear direction and in a zigzag manner in a horizontal direction. 9. The video signal recording and / or reproducing apparatus according to claim 7, wherein an opening that can be opened and closed is provided on an upper surface side of the housing, and the hard disk drive is inserted into and removed from the opening. And a video signal recording and / or reproducing apparatus.