JP2002008362A - Video signal recording and/or reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently cool the built-in parts of a hard disk drive assembly, etc., of a video signal recording and/or reproducing device in which the hard disk drive is built. SOLUTION: The hard disk drive built 9 built into a casing of the device is fixed to a mounting base 41 and this mounting base 41 is fixed part a prescribed spacing by means of leg pieces 41b and 41c on a lower circuit board 7. The lower circuit board 7 is fixed apart a prescribed spacing to a chassis 5 and an upper circuit board 6 is arranged to leave a required spacing by being supported by means of a supporting member 42 between the lower circuit board and the top surface side of the hard disk drive 9. A tuner circuit unit 10 is arranged in one side part on the upper circuit board 6 side. A fan 51 for air intake is arranged to incline downwardly toward the hard disk drive 9 between the upper and lower circuit boards 6 and 7. A power source circuit unit 8 is arranged between the upper and lower circuit boards 6 and 7 and a fan 52 for exhaust is arranged on the rear end side of the power source circuit unit 8.

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 and is closed at least from the front side to the top side. One or more hard disk drive devices are arranged at a substantially central portion of the housing, and a tuner portion is arranged on one side of the hard disk drive device. And a power supply unit is disposed on the other side, a first fan is disposed between the hard disk drive device and the tuner unit, and a second fan is disposed on the rear side of the power supply unit. It is configured to generate an airflow that flows through the hard disk drive device to the power supply unit and reaches the outside.

In the above configuration, the first fan is an intake fan, and the second fan is an exhaust fan.

In the above structure, the side surface of the housing is formed in a substantially rectangular shape in cross section, and a ventilation hole is formed in a valley in the front-rear direction of the side surface, and a ventilation hole is formed on the lower surface side of the front surface of the housing. It can be configured.

In the above configuration, one or a plurality of hard disk drive units may be arranged in a horizontal position and in a vertical position.

Further, in the above configuration, a plurality of hard disk drives are arranged in a zigzag manner in the horizontal direction at a required interval in the front-rear direction, and an air flow is generated in the interval in the hard disk drive. be able to.

As described above, in the video signal recording and / or reproducing apparatus according to the present invention, an intake fan as a first fan is disposed between a tuner circuit section and a hard disk drive in a housing, and a power supply is provided. By arranging an exhaust fan as a second fan on the rear side of the circuit portion, external air is ventilated on the side surface of the housing and formed on the lower surface of the front portion by driving the intake fan. The air flows in through the port and flows along the tuner circuit part that is vulnerable to temperature rise and cools this tuner circuit part, and this air flows along the surface of the hard disk drive device through the intake fan and flows through this hard disk drive device. The air that flows while cooling flows to the power supply circuit side, circulates between the circuit components and cools, and is exhausted to the outside by the exhaust fan and The body cooling is ensured by forced flow of air.

Further, the side surface of the housing is formed in a rectangular shape in cross section, and a ventilation hole is formed in a valley thereof, so that air can be secured even when the apparatus is stored and installed on a shelf or the like.
Also, even when the device 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 formed on the lower surface on the front side, so that the device always performs air circulation and cooling regardless of the installation location. Can be.

Further, even if the hard disk drive is housed in a substantially rectangular parallelepiped shape having a thin housing, and is disposed between large circuit boards having large vertical areas, air is generated by driving the intake fan and the exhaust fan. Cooling is ensured by flowing smoothly between the circuit boards.

[0017]

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.

In the apparatus of this embodiment, the hard disk drive is disposed in the housing structure at substantially the center of the upper and lower circuit boards which are substantially the same as the largest surface of the housing, and the upper and lower circuit boards are 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 the present 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 provided 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, substantially rectangular parallelepiped, and sufficient cooling can be performed by the intake fan and the 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 apparatus of this embodiment. 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 back 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 11d extending above the inner surface thereof, a lower surface plate 11e extending horizontally from the lower edge, and a rear end edge of the lower surface plate 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 at 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 the front panel 11, the left and right side panels 12 and the top plate 13, and the surface thereof is subjected to 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 faces 11A and 12A, which are the mating faces, are cut at an inclination of 45 °, and the cut faces 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 placement section 20 is provided as shown in an enlarged manner in FIG.

As operation buttons shown here, 21 is a cursor button for moving leftward, 22 is a cursor button for moving rightward, 23 is a cursor button for moving upward, and 24 is a cursor button for moving downward. 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. By pressing the menu display button 26 or the list display button 27 and pressing the cursor buttons 21 to 24 in the contents displayed on the screen, the cursor on the screen is displayed. 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 valley bottom portion 11a is provided with a left-right movement section. 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 placed 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, an internal structure of the apparatus 1 of the present embodiment will be described with reference to FIGS.

The power supply circuit unit 8, the hard disk drive 9, the tuner circuit unit 10 and the like are arranged 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, which in this example is a rectangular main plate portion 41a serving as a mounting and fixing portion surface of the hard disk drive 9, and a side opposed to one direction in this example. 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 on the main plate portion 41a and positioned on the mounting base 41 thus formed, and is fixed by inserting a screw through 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 a bottom plate 5a 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.

In order to install two hard disk drives 9 on the circuit board 7 as described above, the hard disk drives 9 are mounted on the mounting bases 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 in which the power supply circuit unit 8 and the bird disk drive device 9 are arranged as described above, 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 has a cooling intake fan 51 and an exhaust fan 52 built therein, and the intake fan 51 is arranged on a part 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 that 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 fixed to a chassis 5 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 a neoprene (registered trademark) sponge. Can be used.

The hard disk drive 9 is
The mounting base 41 is fixed to the mounting base 41.
On the lower circuit board 7 with 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 space of a plurality of layers is 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 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 casing 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. However, the exhaust fan 52 must be arranged on the power supply circuit unit 8 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 equipment 1 of this embodiment incorporates a cooling intake fan 51 and an exhaust 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 at a 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 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 while the device 1 is mounted on the 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 is built in. 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 outside by the exhaust fan 52.

In this way, the inside of the casing structure of the apparatus 1 is cooled by the forced flow of air, and the temperature of each member is measured, so that the heat generation 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 device 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.

Furthermore, 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.

A ventilation hole 72 is formed in both side plates 71, a ventilation hole (not shown) is formed in one side of the bottom plate 73, and a leg 74 is formed 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 substantially vertical position at a required interval in the front-rear direction at a substantially central portion of the housing 62, 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 units 90 mounted and arranged on the circuit board 78 in the vertical position have the soundproofing material on the inner 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, similarly to 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. The intake fan 97 is provided on the circuit board 78 at the side of the hard disk drive 90 at the tuner circuit unit 96 side. 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, since the fan portion 97a faces the side surface of the hard disk drive device 90 obliquely upward from below, the airflow flowing obliquely upward from the lower portion through the space portion of the hard disk drive device 90. 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 in the housing 62, in this example, the inner side of the front panel 63 and the inner side of the lid plate 69 for closing 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 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 predetermined intervals in the longitudinal direction and in the front-rear direction, air flows through the space and cools the hard disk drive 9, but the hard disk drive 90 has one space. 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 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 may 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.

[0089]

As described above, in the video signal recording and / or reproducing apparatus according to the present invention, the intake fan as the first fan is disposed between the tuner circuit section and the hard disk drive in the housing. By arranging an exhaust fan as a second fan on the rear side of the power supply circuit section, external air is formed on a vent formed on a side surface of a housing and a lower surface of a front portion by driving an intake fan. The air flows through the tuner circuit that is weak from the temperature rise and cools down the tuner circuit, and the air flows along the surface of the hard disk drive through the intake fan and the hard disk drive The air flowing while cooling the device flows to the power supply circuit part side, circulates between the circuit components and cools, and is exhausted to the outside by the exhaust fan. Housing the cooling is ensured by forced flow of air.

Further, the side surface of the housing is formed in a rectangular shape in cross section, and a ventilation hole is formed in its valley, so that even when the apparatus is stored and installed on a shelf or the like, air can be secured.
In addition, even when the device 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 formed on the lower surface on the front side, so that the device always performs ventilation cooling regardless of the installation location. Can be.

Further, even if the hard disk drive is housed in a thin rectangular parallelepiped hard disk drive, and is disposed between large circuit boards having a large vertical area, air is driven by the intake fan and the exhaust fan. Cooling is ensured by flowing smoothly between the circuit boards.

[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 circuit unit, 9} Hard disk drive, 10} Tuner circuit unit, 11} Front panel, 12} Side panel, 41} Mounting base, 41b, 41c {Legs, 42} Support Leg piece, 4
6 ‥‥ support legs, 51 ‥‥ intake fan, 52 ‥‥ exhaust fan

Claims (6)

[Claims] 1. A video signal recording and / or reproducing apparatus in which a hard disk drive device is 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. Arranging one or more hard disk drives in a substantially central portion of the housing, arranging a tuner on one side and sandwiching a power supply on the other side with the hard disk drive interposed therebetween; A first fan is disposed between the hard disk drive and the tuner, and a second fan is disposed behind the power supply. The first fan is circulated from the tuner to the power supply through the hard disk drive. And a video signal recording and / or reproducing apparatus for generating an air flow to the outside. 2. The video signal recording and / or recording method according to claim 1, wherein
Alternatively, in the reproducing apparatus, the first fan is an intake fan, and the second fan is an exhaust fan. 3. The video signal recording and / or recording method according to claim 1, wherein
Alternatively, in the reproducing apparatus, the side surface of the housing is formed in a substantially rectangular shape in cross section, and a ventilation hole is formed in a valley in the front-rear direction of the side surface, and a ventilation hole is formed on the lower surface side of the front portion of the housing. A video signal recording and / or reproducing apparatus characterized by the above-mentioned. 4. The video signal recording and / or recording method according to claim 1, wherein
A video signal recording and / or reproducing apparatus, wherein one or a plurality of hard disk drives are arranged in a horizontal position in a reproducing apparatus. 5. The video signal recording and / or recording method according to claim 1, wherein
A video signal recording and / or reproducing apparatus, wherein one or a plurality of hard disk drives are arranged in a vertical position in a reproducing apparatus. 6. The video signal recording and / or recording method according to claim 1, wherein
Alternatively, in the reproducing apparatus, a plurality of hard disk drive devices are arranged in a zigzag shape in the horizontal direction at a required interval in the front-rear direction, and an air flow is generated in the interval portion in the hard disk drive device. Video signal recording and / or reproducing apparatus.