JP2003308135A - Portable electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide portable electronic equipment where it is possible to easily listen to a voice emitted by a speaker. <P>SOLUTION: The portable electronic equipment is provided with a case body (3) whose upper face is equipped with a keyboard (21), a speaker (335) disposed in the casing, and a plurality of holes (346) opened on the upper face of the casing, and faced to the speaker. The speaker is formed so as to be faced to the front part of the casing, and inclined forward to the lower part of the keyboard. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic device such as a portable computer in which a speaker is arranged inside a casing having a keyboard.

[0002]

2. Description of the Related Art A book-type or notebook-type portable computer includes a computer main body for accommodating main components such as a hard disk drive, and a display unit supported at the rear end of the computer main body. . The computer main body has a flat box-shaped housing, and the keyboard is arranged on the upper surface of the housing.

In this type of portable computer, a speaker for outputting, for example, a warning sound or a voice is housed inside the housing. The speaker is installed at a position away from the keyboard, and a hole is formed on the upper surface of the housing facing the speaker so that the sound emitted by the speaker is emitted to the outside of the housing.

[0004]

In the conventional portable computer, the speaker is installed inside the housing in a horizontal posture so as to face the hole for emitting sound. With this configuration, most of the sound emitted by the speaker is emitted toward the upper side of the housing, and the emission direction of the sound is different from the position of the operator when operating the portable computer.

As a result, the sound emitted from the speaker becomes difficult to hear, and the noise from the surroundings causes it to be erased.

The present invention has been made under these circumstances, and an object of the present invention is to provide a portable electronic device in which the sound emitted from a speaker can be easily heard.

[0007]

In order to achieve the above object, a portable electronic device according to one aspect of the present invention includes a housing having a keyboard on an upper surface, and a housing arranged in the housing.
It is characterized in that the speaker is provided with a speaker facing forward of the housing and inclined forward and downward with respect to the keyboard, and a plurality of holes opened on an upper surface of the housing and facing the speaker.

According to such a configuration, the sound from the speaker is emitted obliquely upward and forward of the housing, so that the sound emitted by the speaker can be easily heard.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings applied to a portable computer.

FIG. 1 shows a B5 size notebook type portable computer 1. This computer 1
Includes a computer main body 2 placed on a table. The computer main body 2 has a flat box-shaped housing 3. The housing 3 is divided into a lower housing 4 and an upper housing 5. The lower housing 4 and the upper housing 5 are made of a synthetic resin material such as ABS resin.

The lower housing 4 has a flat rectangular bottom wall 4a and left and right side walls 4b and 4c connected to the bottom wall 4a.
It has a front wall 4d and a rear wall 4e. These side walls 4
The b, 4c, the front wall 4d, and the rear wall 4e extend upward from the peripheral edge of the bottom wall 4a, and these walls 4b to 4d form the front, rear, left, and right peripheral walls of the housing 3.

The upper housing 5 has a substantially flat plate shape having an upper wall 5a. The upper wall 5a faces the bottom wall 4a, and the front, rear, left, and right side edges of the upper wall 5a are connected to the side walls 4b, 4c, the front wall 4d, and the rear wall 4d of the lower housing 4, respectively. The upper wall 5a has a pair of display support portions 6a and 6b. The display support portions 6a and 6b project upward from the upper wall 5a at both left and right sides of the rear end of the upper wall 5a.

The front half of the upper wall 5a of the upper housing 5 forms a flat palm rest 7 for placing a hand. A rectangular keyboard mounting opening 8 is opened in the latter half of the upper wall 5a connected to the palm rest 7. As shown in FIG. 2, the keyboard mounting opening 8 has a size that covers substantially the entire rear half of the upper wall 5a. As shown in FIG. 11, a downwardly extending peripheral wall 9 is integrally formed at the opening side edge and the opening rear edge of the keyboard mounting opening 8, and the peripheral wall 9 is formed at the left end of the keyboard mounting opening 8.
A support wall 10 is formed integrally with the lower end of the support wall.
The support wall 10 is arranged substantially parallel to the bottom wall 4a of the lower housing 4.

As shown in FIGS. 2 and 11, a keyboard support portion 12 is formed at the front edge of the opening of the keyboard mounting opening 8. The keyboard support portion 12 extends in the left-right direction along the front edge of the opening of the keyboard mounting opening 8, and both left and right ends thereof are connected to the peripheral wall 9. The keyboard support 12 is
It is provided with first to third mounting recesses 13a to 13c. These mounting recesses 13a to 13c are located at the left and right ends and the central part of the keyboard support 12,
The second mounting recess 13b at the center thereof is formed wider in the left-right direction than the first and third mounting recesses 13a, 13c at the left and right ends.

As shown in FIGS. 11 and 17, each of the first to third mounting recesses 13a to 13c has a flat upper surface 14 and an upright surface 15 extending upward from the rear end of the upper surface 14. ing. The upper surface 14 is the keyboard mounting opening 8
Nut 16 is embedded in the upper surface 14 of each of the mounting recesses 13a to 13c.

As shown in FIG. 2, a keyboard 21 is detachably attached to the keyboard attachment opening 8. The keyboard 21 includes a keyboard panel 22 made of synthetic resin. The keyboard panel 22 is in the form of a flat rectangular plate having a size that can be fitted into the keyboard mounting opening 8. A large number of keys 23 and a joystick 24, which is a kind of pointing device, are arranged on the upper surface of the keyboard panel 22.

A metal reinforcing plate 25 is attached to the lower surface of the keyboard panel 22. The reinforcing plate 25 is for preventing leakage of switching noise due to key operation and for reinforcing the keyboard panel 22, and has a flat rectangular plate shape having a size that covers the entire lower surface of the keyboard panel 22. I am doing it. In the case of this embodiment, the reinforcing plate 25 is made of an aluminum alloy having excellent thermal conductivity.

The keyboard panel 22 includes first to third
The supporting pieces 27a to 27c are provided. Support piece 27a-
27 c is integrally extended from the front edge of the keyboard panel 22. When the keyboard 21 is mounted in the keyboard mounting opening 8, the support pieces 27a to 27c enter the first to third mounting recesses 13a to 13c and are stacked on the upper surface 14 thereof. The keyboard 21 is fixed to the keyboard mounting opening 8 by inserting a screw 28 into the support pieces 27a to 27c from above and screwing the insertion end of the screw 28 into the nut 16.

When the keyboard 21 is fixed to the keyboard mounting opening 8, the left end portion of the reinforcing plate 25 overlaps the upper surface of the support wall 10 and the remaining portion of the reinforcing plate 25 is exposed inside the housing 3. It has become.

As shown in FIG. 2, the decorative panel 30 is detachably locked to the front edge of the keyboard mounting opening 8. The decorative panel 30 covers the keyboard support 12 from above, and extends in the left-right direction along the front edge of the opening of the keyboard mounting opening 8. This decorative panel 30 is
It is located between the palm rest 7 and the key 23 in the front row of the keyboard 21. The upper surface of the decorative panel 30 is flush with the palm rest 7 and is a part of the palm rest 7.

A pair of click switch buttons 31a and 31b are arranged at a substantially central portion of the palm rest 7. The click switch buttons 31a and 31b are pressed by fingertips when executing and canceling commands, and slightly project from the upper surface of the palm rest 7.

As shown in FIGS. 4 and 7, the housing 3 has a battery accommodating portion 34. The battery storage portion 34 is
The bottom wall 4a, the front wall 4d, and the right side wall 4c of the lower housing 4 are formed as recesses that open continuously, and extend in the left-right direction below the palm rest 7.

The battery accommodating portion 34 includes the lower housing 4
An erecting wall 35 that extends continuously in the left-right direction from the bottom wall 4a of
It has a ceiling wall 36 connected to the upper end of the standing wall 35. The upright wall 35 and the ceiling wall 36 are the battery housing portion 3
4 is separated from the inside of the housing 3, and the ceiling wall 3
6 faces the palm rest 7. A connector lead-out port 37 that is continuous with the inside of the housing 3 is opened at the left end portion of the battery accommodating portion 34.

The battery pack 40 is placed in the battery accommodating portion 34.
Is detachably attached. Battery pack 40
Is a power supply for driving the computer 1 when it is used in a place where a commercial power supply cannot be obtained. When the battery pack 40 is mounted in the battery accommodating portion 34, the outer peripheral surface of the battery pack 40 is continuous with the bottom wall 4a, the front wall 4d, and the right side wall 4c of the lower housing 4.

As shown in FIGS. 5, 6 and 28, first to third circuit boards 43 are provided inside the lower housing 4.
~ 45 are housed. The first circuit board 43 is a system board and has a front surface 43a and a back surface 43b. As shown in FIG. 19 and FIG. 26, the first circuit board 4
3 is a plurality of boss portions 4 on the bottom wall 4a of the lower housing 4.
It is being fixed to 6 through the screw 47. Therefore, the first
The circuit board 43 is accommodated inside the lower housing 4 in a posture parallel to the bottom wall 4a.

The first circuit board 43 is located below the keyboard 21. A first stacking connector 50 and a second stacking connector 51 are arranged on the left side of the front surface 43a of the circuit board 43.

The second circuit board 44 is a power supply board.
The second circuit board 44 is arranged substantially parallel to the first circuit board 43 above the left end portion of the first circuit board 43. The second circuit board 44 has an extension portion 44 a that is inserted between the connector lead-out port 37 of the battery housing portion 34 and the left side wall 4 b of the lower housing 4.

The second circuit board 44 is the first circuit board 4
A third stacking connector 52 is provided on the lower surface of the portion facing 3 rd. Third stacking connector 5
2 is fitted to the first stacking connector 50 from above, and by this fitting, the first circuit board 43
And the second circuit board 44 are electrically connected. The first and third stacking connectors 50, 52 have a rectangular shape extending in the front-rear direction of the lower housing 4.

The third circuit board 45 is an acoustic board.
The third circuit board 45 is arranged above the second circuit board 44 and substantially parallel to the second circuit board 44. The third circuit board 45 extends in the left-right direction along the palm rest 7, and the substantially right half thereof is the palm rest 7.
And the ceiling wall 36 of the battery accommodating portion 34. The third circuit board 45 is screwed to the upper surface of the ceiling wall 36.

A fourth stacking connector 54 is provided on the third circuit board 45 via a flexible wiring board 53.
Are connected. Fourth stacking connector 54
Is fitted to the second stacking connector 51 from above, and by this fitting, the first circuit board 43 and the third circuit board 45 are electrically connected.

As shown in FIG. 5, a battery connector 57 is attached to the extension portion 44a of the second circuit board 44. The battery connector 57 includes a connector main body 58 made of synthetic resin and a plurality of connection terminals 59 supported by the connector main body 58. The connector body 58 is in the shape of an elongated rectangular box that faces the connector outlet 37 of the battery accommodating portion 34, and is attached to the lower surface of the extension portion 44a. The connection terminals 59 are exposed in the battery accommodating portion 34 through the connector lead-out port 37, and the power supply terminals and the signal terminals (not shown) of the battery pack 40 are in contact with these connection terminals 59.

As shown in FIG. 9, the lower housing 4 is
A pair of fitting grooves 61a and 61b for positioning the battery connector 57 is provided. Fitting grooves 61a, 61b
Are located on the front and rear opening edges of the connector outlet 37. The one fitting groove 61a is provided on the front wall 4 of the lower housing 4.
It extends vertically along the inner surface of d. The other fitting groove 61b extends in the up-down direction along the end of the upright wall 35 of the battery accommodating portion 34.

The connector body 58 has fitting protrusions 62a and 62b at both ends in the longitudinal direction. Mating projection 6
2a and 62b extend along the up-down direction of the connector body 58. When the second circuit board 44 is housed in the lower housing 4, the fitting protrusions 62a and 62b are fitted into the fitting grooves 61a and 6b from above the lower housing 4.
It is adapted to fit in 1b. By this fitting, the battery connector 57 is held in the lower housing 4 with the connection terminal 59 exposed in the connector lead-out port 37.

The battery connector 57 is the lower housing 4
The inner cover 64 is attached to the upper portion of the battery outlet 37 in the state of being held at. The inner cover 64 includes the upper surface of the connector main body 58 and the connector lead-out port 3.
The inner cover 64 is provided with a pair of guide portions 65a and 65b which are fitted into the fitting grooves 61a and 61b at both ends thereof.

At the upper end of the inner cover 64, a support piece 66 is formed so as to overlap with the upper surface of the ceiling wall 36.
The support piece 66 is sandwiched between the circuit board 45 and the ceiling wall 36 when the third circuit board 45 is screwed to the ceiling wall 36, whereby the inner cover 64 is provided. Is retained on the upper portion of the connector outlet 37 and retained.

As shown in FIGS. 7 and 8, the lower end corner portion defined by the front wall 4d and the bottom wall 4a of the lower housing 4 is curved in an arc shape in accordance with the design requirements of the computer 1. It forms a curved portion 69. Due to the presence of the curved portion 69, the lower end of the one fitting groove 61a is formed in a taper shape as it goes downward, as shown in FIG.

In this case, since the lower end corner portion 63 of the fitting convex portion 62a fitted into the fitting groove 61a is square at right angles, when the fitting convex portion 62a is fitted into the fitting groove 61a. The lower end corner portion 63 of the fitting convex portion 62a interferes with the inner surface of the fitting groove 61a, and the fitting of the fitting convex portion 62a is hindered.

Therefore, in this embodiment, a plurality of vent holes 70 connected to the inside of the lower housing 4 are formed in a line in the left-right direction at positions corresponding to the curved portions 69 on the front wall 4d. One of these vents 70 is shown in FIG.
As shown in, the opening is made at the lower end of the fitting groove 61a. For this reason, the fitting protrusion 62a of the connector body 58 is fitted into the fitting groove 6
When the fitting convex portion 62a is fitted from above, the lower end corner portion 63 of the fitting convex portion 62a enters the ventilation hole 70, and interference between the fitting convex portion 62a and the fitting groove 61a is avoided.

In this embodiment, the fitting convex portion 62a of the connector main body 58 is inserted into the vent hole 70, but interference between the end portion of the second circuit board 44 and the curved portion 69 is a problem. If so, the vent hole 70 may be formed in a slit shape extending in the left-right direction, and the end portion of the second circuit board 44 may be inserted into the vent hole 70.

As shown in FIG. 5, at the end portion of the third circuit board 45, a pair of jacks 72a and 72b serving as audio input and output terminals and a volume adjusting dial 73 are provided.
Are arranged. The jacks 72a and 72b and the dial 73 are provided on the left side wall 4b of the lower housing 4.
Is exposed to.

The surface of the third circuit board 45 faces the palm rest 7, and a pair of click switches 75a and 75b are arranged on this surface. The click switches 75a and 75b are click switch buttons 31.
It is pressed by a and 31b, and is connected to the third circuit board 45 via a flexible wiring board 76.

As shown in FIG. 4, at the rear end of the surface 43a of the first circuit board 43, a connection port 80 for connecting a peripheral device having an interface of RS232C standard, and a printer are connected. The parallel port 81, the expansion connector 82 used for expanding the functions of the computer 1, and the power connector 83 into which the power plug is inserted are arranged in a line in the left-right direction.

At the rear end of the first circuit board 43,
As shown in FIG. 32, a metal connector panel 85 is attached. The connector panel 85 supports the connection port 80, the parallel port 81, and the expansion connector 82. The connector panel 85 stands upright on the first circuit board 43. A locking portion 85a extending in the left-right direction is formed on the upper portion of the connector panel 85. The locking portion 85a is located above the connection port 80 and the extension connector 83.

The connector panel 85 is used for the first circuit board 4
3 and the bottom wall 4a of the lower housing 4 have an extension 85b. The extension portion 85b is substantially parallel to the bottom wall 4a, and the end portion of the extension portion 85b has the bottom wall 4a.
The upper boss portion 46 is supported together with the first circuit board 43. (See FIG. 26) The connector panel 85 extends in the left-right direction along the rear wall 4e of the lower housing 4.
This rear wall 4e has a connection port 80 and a parallel port 8
1 and the extension connector 82 are exposed to the first connector outlet 86, and the power supply connector 83 is exposed to the second connector outlet 87.

The lower housing 4 has a connector cover 88.
Is equipped with. The connector cover 88 is movably supported by the lower housing 4 between a first position where the first connector outlet 86 is opened and a second position where the first connector outlet 86 is closed. This connector cover 88
Is moved to the first position, the bottom wall 4a of the lower housing 4 and the extension portion 85b of the connector panel 85.
It is designed to be stored between and.

As shown in FIG. 4, a card accommodating portion 91 is arranged on the surface 43a of the first circuit board 43. The card accommodating portion 91 is the right end portion of the first circuit board 43a and is located on the rear side of the battery accommodating portion 34. The card accommodating portion 91 is a PCMCIA (personal computer
expansion card (not shown) such as memory card international association) card or interface card
For removably accommodating.

The card accommodating portion 91 includes a card connector 92 to which an expansion card is connected, and a card case 93 having a guide for guiding the expansion card to the card connector 92. The card case 93 is made of a metal material such as stainless steel. The card case 93 has a flat upper surface 93a, and the upper surface 93a is
It is exposed at the right end of the keyboard mounting opening 8. And
The upper surface 93a of the card case 93 has a keyboard mounting opening 8
Inside, the upper surface of the support wall 10 and the upper surface 14 of the keyboard support portion 12 are located substantially on the same plane.

As shown in FIGS. 2 and 19, the hard disk mounting portion 100 is formed on the surface 43a of the first circuit board 43. The hard disk mounting portion 100 is surrounded by the card housing portion 91, the second circuit board 44, and the battery housing portion 34, and is located at a substantially central portion of the first circuit board 43. The hard disk mounting unit 100 is
It has a hard disk connector 101. The hard disk connector 101 is located at the rear end portion of the first circuit board 43 and faces the standing wall 35 of the battery housing portion 34.

The hard disk mounting portion 100 is connected to the keyboard mounting opening 8 at a substantially central portion thereof, and the keyboard 21
By removing the decorative panel 30 from the keyboard mounting opening 8, the decorative panel 30 is exposed to the outside of the housing 3.

A hard disk drive device 103 (hereinafter referred to as HDD) is detachably housed in the hard disk mounting section 100. The HDD 103 is taken in and out of the hard disk mounting section 100 through the keyboard mounting port 8, and its details are shown in FIG.

The HDD 103 is a metal housing 10
It is equipped with 4. The housing 104 has a flat rectangular box shape with an open upper end.
The upper end of 4 is hermetically closed by the top cover 105.

The housing 104 has a motor mounting hole 106.
Has a bottom wall 104a opened. Bottom wall 104a
A motor bracket 107 is attached to the motor mounting hole 106 of. The motor bracket 107 has a body 108 fitted in the motor mounting hole 106, and this body 108 has a flat bottom surface 108a protruding below the bottom wall 104a.

The motor 110 is housed inside the housing 104. The motor 110 is the motor bracket 1
07 has a shaft 111 supported by a body 108, and a boss portion 112a of a rotor 112 is rotatably supported on an outer peripheral surface of the shaft 111. A disk-shaped magnetic recording medium 113 is supported on the outer peripheral portion of the rotor 112.

A carriage having a magnetic head (not shown) and a voice coil motor for rotating the carriage are housed inside the housing 104.

A circuit board 115 is supported on the bottom wall 104a of the housing 104. The circuit board 115 has a rectangular plate shape having substantially the same size as the housing 104. The circuit board 115 is the bottom wall 10 of the housing 104.
The motor 110, the magnetic head, and the voice coil motor are electrically connected to the circuit board 115.

A relay connector 116 is attached to the circuit board 115. The relay connector 116 is located at one end of the housing 104 in the longitudinal direction and is detachably fitted to the hard disk connector 101.

Further, the circuit board 115 is formed with an opening 117 into which the body 108 of the motor bracket 107 is inserted. The opening 117 is for avoiding interference between the circuit board 115 and the body 108.
The bottom surface 108a of each of the circuit boards slightly protrudes from the bottom surface of the circuit board 115.

As shown in FIG. 15, a bracket 121 made of sheet metal is attached to the housing 104 of the HDD 103. The bracket 121 includes a pair of side plate portions 122a, 12 screwed to the left and right side surfaces of the housing 104.
It has 2b and the top plate part 123 which connects between these side plate parts 122a and 122b.

The top plate 123 is placed on the upper surface of the top cover 105. The top plate 123 includes an extending portion 124 that extends horizontally. The extension part 124 is the HDD 103.
Of the tongue piece 125a, which extends from the end opposite to the relay connector 116.
125b is integrally formed. Tongue pieces 125a, 12
5b is adapted to be superposed on the upper surface 14 of the second mounting recess 13b of the keyboard supporting portion 12 when the HDD 103 is mounted on the hard disk mounting portion 100, and the screw 28 is inserted through these tongue pieces 125a and 125b. The holes 126a and 126b are opened. Then, the upright surface 15 of the second mounting recess 13b continuous with the upper surface 14
As shown in FIGS. 12 and 17, the tongue pieces 125 a, 1
Escape holes 127a and 127b into which 25b is inserted are formed.

As shown in FIG. 2, the hard disk mounting portion 1 is provided on the peripheral wall 9 connected to the rear edge of the opening of the keyboard mounting opening 8.
A pair of left and right guide walls 128 extending downward toward 00
a and 128b are integrally formed. Guide wall 128
a and 128b are the hard disk connector 101 and HD
The HDD 103 is positioned in the left-right direction with respect to the D 103, and the HDD 103 is inserted between the guide walls 128a and 128b.

Next, a procedure for mounting the HDD 103 on the hard disk mounting section 100 will be described. First, the keyboard 21 is removed from the housing 3, and the keyboard mounting opening 8
The hard disk mounting part 100 is opened toward above the housing 3 through.

Then, as shown in FIG. 12 and FIG.
The DD 103 is inserted into the hard disk mounting section 100 from above the housing 3 through the keyboard mounting opening 8. On this occasion,
The HDD 103 inserts the tongue pieces 125a and 125b toward the hard disk mounting section 100 in an obliquely downward posture with the tongue pieces 125a and 125b at the top, and inserts the tongue pieces 125a and 125b into the second position.
While being inserted into the escape holes 127a and 127b of the mounting recess 13b, the tip edge of the extension portion 124 of the bracket 121 is brought into contact with the corner defined by the upper surface 14 and the upright surface 15 of the second mounting recess 13b.

Next, with the tip of the extension portion 124 as a fulcrum, H
The DD 103 is rotated downward, and the HDD 103 is dropped into the hard disk mounting portion 100 through the space between the guide walls 128a and 128b. As a result, as shown in FIG. 18, the HDD 103 is placed on the surface 43a of the first circuit board 43, the relay connector 116 thereof faces the hard disk connector 101, and the extension portion 124 of the bracket 121 is attached to the second mounting portion. It overlaps the upper surface 14 of the recess 13b.

In this state, as shown in FIG.
103 is slid toward the rear of the housing 3 to fit the relay connector 116 into the hard disk connector 101. By this fitting, the tongue pieces 125a and 125b slip out from the escape holes 127a and 127b, move to the upper surface 14 of the second mounting recess 13b, and the tongue pieces 125a and 125b are released.
The insertion holes 126a and 126b of 5b are aligned with the nut 16.

Finally, the insertion hole 1 of the tongue pieces 125a and 125b
The screw 28 is inserted through 26 a and 126 b, and the insertion end of the screw 28 is screwed into the nut 16. This makes HD
D103 is fixed to the hard disk mounting unit 100, and a series of mounting work is completed.

The screw 28 for fixing one tongue piece 125b also serves to fix the keyboard 21, and the tongue piece 125b is fixed to the second mounting recess 13b together with the second supporting piece 27b of the keyboard 21. To be done.

According to such a mounting structure of the HDD 103, when the HDD 103 is inserted into the hard disk mounting portion 100 in a posture in which the HDD 103 is inclined obliquely downward, the HDD 1
Escape hole 127 into which the tongue pieces 125a and 125b of 03 enter
Since the a and 127b are formed on the housing 3 side, it is not necessary to secure a special space around the second mounting recess 13b that allows the tongues 125a and 125b to move when the HDD 103 is slid. Therefore, it is possible to prevent useless space from being generated inside the housing 3, and it is possible to perform high-density mounting.

As shown in FIG. 14, the surface 43a of the first circuit board 43 facing the hard disk mounting portion 100 is covered with a smooth insulating sheet 131. The insulating sheet 131 is for preventing contact between the circuit board 115 of the HDD 103 and the first circuit board 43.
When D103 is slid, the circuit board 115 is slidably contacted.

Since the body 108 of the motor bracket 107 of the HDD 103 penetrates the opening 117 of the circuit board 115 and slightly protrudes from the lower surface of the circuit board 115 as described above, the insulating sheet 131 is 1
It has an escape hole 132 to avoid 08. This escape hole 1
32 has an elongated elliptical shape in the sliding direction of the HDD 103, and has an opening shape larger than the body 108.

According to this structure, the insulating sheet 131 on which the circuit board 115 of the HDD 103 slidably contacts the HD
Since the escape hole 132 for escaping the body 108 of D103 is opened, when the HDD 103 is slid, the body 10
The bottom surface 108a of 8 does not get caught in the insulating sheet 131. Therefore, the sliding operation of the HDD 103 can be smoothly performed, and the insulating sheet 103 can be prevented from being damaged.

The shape of the escape hole 132 is not limited to an ellipse but may be a perfect circle.

As shown in FIG. 11, when the HDD 103 is fixed to the hard disk mounting portion 100, the top plate portion 123 of the bracket 121 is located between the support wall 10 of the keyboard mounting opening 8 and the upper surface 93a of the card case 93. Is located in. A convex portion 135 extending in the left-right direction of the keyboard mounting opening 8 is integrally formed on the top plate portion 123. The convex portion 135 rises in an arcuate cross section with respect to the ceiling surface 123. The tip of the convex portion 135 is located on substantially the same plane as the upper surface 93 a of the card case 93 and the upper surface of the support wall 10.

Therefore, when the keyboard 21 is attached to the keyboard mounting opening 8, the convex portion 135 of the bracket 121 and the upper surface 93a of the card case 93 come into contact with the lower surface of the reinforcing plate 25 of the keyboard 21. Therefore, it is possible to support the keyboard 21 from the inside of the housing 3 by using the bracket 121 of the HDD 103 and the card case 93, and the rattling of the keyboard 21 when the key 23 is operated and the bending of the keyboard panel 22 are caused. Can be prevented.

As shown in FIGS. 11 and 15, a ribbon 140 used when the HDD 103 is taken out of the hard disk mounting section 100 is attached to the top plate 123 of the bracket 121. The ribbon 140 is made of a synthetic resin sheet material and has a band shape with a width of about 30 mm. The ribbon 140 has such strength that it can maintain its linear shape.

The ribbon 140 has a locking piece 141 at one end thereof.
have. The locking piece 141 is bent at a right angle from one end of the ribbon 140 and has a rectangular shape wider than the ribbon 140. The locking piece 141 is the top plate portion 1.
The locking piece 141 has a slit-shaped insertion hole 142 through which the ribbon 140 can be inserted.

Further, a mounting hole 143 through which the ribbon 140 is inserted is formed in the top plate portion 123. The mounting hole 143 has a slit shape extending in the left-right direction of the top plate 123.

To attach the ribbon 140 to the top plate portion 123, first, the locking piece 141 is superposed on the top surface of the top plate portion 123, and the insertion hole 142 and the attachment hole 143 are opposed to each other. Then, the tip end portion 140a of the ribbon 140 on the side opposite to the locking piece 141 is guided through the lower portion of the top plate portion 123 to the opening portion of the mounting hole 143, and is inserted into the mounting hole 143 from below the top plate portion 123.

Next, the leading end 140a of the ribbon 140 is inserted into the insertion hole 142 from below the locking piece 141, and this leading end is pulled upward. As a result, as shown in FIG. 15, the locking piece 141 overlaps with the upper surface of the top plate 123 and the ribbon 140 continuous with the locking piece 141.
One end of the ribbon is wrapped around the top plate 123, and the ribbon 14
0 is fixed to the top plate 123 so as not to come off.

In the state where the ribbon 140 is fixed to the top plate portion 123, the ribbon 140 maintains a state of protruding upward from the HDD 103 toward the keyboard mounting opening 8 due to its own strength, as shown in FIG. There is. Therefore, the HDD 103 can be slid toward the front of the housing 3 by grasping the tip end portion 140a of the ribbon 140 with a fingertip and pulling it toward the palm rest 7 side, and the fitting between the hard disk connector 101 and the relay connector 116 is released. be able to.

After the connectors 110 and 116 are disengaged from each other, the HDD 140 can be taken out from the hard disk mounting section 100 by pulling up the ribbon 140 diagonally forward.

It should be noted that the keyboard 2 is attached to the keyboard mounting opening 8.
1 is attached to the ribbon 140, the keyboard 21 and H
It is folded up with the DD 103 so as not to interfere with the mounting of the keyboard 21.

As shown in FIGS. 20 to 23, TCP (Tape Carrier) as a circuit element is provided on the first circuit board 43.
Package) 150 is implemented. TCP150 is
Due to the increase in speed and the increase in capacity accompanying the diversification of functions of the computer 1, the amount of heat generated during operation is extremely large. This TCP 150 is the first circuit board 4
3 is located on the back surface 43b of the keyboard 3, and is located below the left rear end portion of the keyboard 21.

As shown in FIG. 24A, TCP15
0 is a carrier 151 made of a flexible resin film,
The semiconductor chip 152 supported by the carrier 151 is provided. The carrier 151 is in the shape of a quadrangular frame having four edges that are orthogonal to each other, and a large number of leads 154 made of copper foil are formed on the carrier 151.

The semiconductor chip 152 has a flat surface 152.
It has a substantially square shape having a and a back surface 152b.
One end of a plurality of leads 154 is bonded to the outer periphery of the back surface 152b of the semiconductor chip 152. The connecting portion of these leads 154 is covered with potting resin 155. The tip of the lead 154 is attached to the carrier
1 is derived from the edge. The tips of these leads 154 are connected to the connection pads 1 on the back surface 43b of the first circuit board 43.
Soldered to 56.

The surface 152a of the semiconductor chip 152 is not covered with the potting resin 155 but is exposed to the outside as it is, and the entire surface of the surface 152a is plated with a conductive material.

As shown in FIGS. 20 and 24, the first circuit board 43 has a square hole 1 at the mounting portion of the TCP 150.
It is equipped with 58. The hole 158 has a similar shape to the semiconductor chip 152 and has an opening shape larger than the planar shape of the semiconductor chip 152. This hole 158
Faces the semiconductor chip 152.

As shown in FIG. 24A, the first circuit board 43 has a large number of through holes 160 arranged so as to surround the hole 158. These through holes 160
Penetrates through the first circuit board 43 in the thickness direction. Therefore, one end of the through hole 160 is opened in the back surface 43b of the first circuit board 43 and is adjacent to the semiconductor chip 152, and the other end of the through hole 160 is in the front surface of the first circuit board 43. It is opened at 43a. Then, as shown in FIG. 24B, the inner surface of each through hole 160 is plated with copper having excellent thermal conductivity, and the entire inner surface of the through hole 160 is covered with the plating layer 161. There is.

On the surface 43a of the first circuit board 43, a heat transfer layer 162 formed by depositing a copper foil is formed. The heat transfer layer 162 is arranged so as to surround the periphery of the hole 158, and the other end of the through hole 160 is opened in the heat transfer layer 162. Therefore, the heat transfer layer 162 is continuous with the plated layer 161 on the inner surface of the through hole 160.

As shown in FIGS. 20 to 25, the heat dissipation unit 165 is attached to the mounting portion of the TCP 150 on the first circuit board 43. Heat dissipation unit 16
5 includes a heat dissipation member 166 arranged on the front surface 43a of the first circuit board 43 and a cover 167 arranged on the back surface 43b of the first circuit board 43.

The heat radiating member 166 is made of a metal material having excellent thermal conductivity such as brass or aluminum alloy. The heat dissipation member 166 has a flat square shape having a plane shape much larger than the hole 158. The heat dissipation member 166 has a flat lower surface 166 a facing the surface 43 a of the first circuit board 43 and an upper surface 166 b as a heat dissipation surface exposed above the first circuit board 43.
And have.

The lower surface 166a has seat portions 169 at its four corners. The seat portion 169 slightly projects from the lower surface 166a. The front end surfaces of the seat portions 169 are located on the same plane and the front surface 43a of the first circuit board 43 is formed.
Touches.

Therefore, as shown in FIG.
When the heat dissipating member 166 is installed on the surface 43a of the first circuit board 43, the heat dissipating member 166 is separated from the surface 43a of the first circuit board 43 by an amount corresponding to the height of the seat portion 169. And the lower surface 166a of the heat dissipation member 166
A first adiabatic gap 170 is formed between and.

At the center of the lower surface 166a of the heat radiating member 166, a convex portion 171 is integrally projected. Convex portion 171
Has entered the hole 158. A second heat insulating gap 172 that is continuous in the circumferential direction is formed between the outer peripheral surface of the convex portion 171 and the inner peripheral surface of the hole 158.

The convex portion 171 has a flat heat receiving surface 173 exposed on the back surface 43b of the first circuit board 43. The heat receiving surface 173 has a larger area than the front surface 152a of the semiconductor chip 152, and the back surface 43b of the first circuit board 43.
And is located on the same plane. Then, in the case of the present embodiment, the semiconductor chip 15 is formed on the heat receiving surface 173 of the convex portion 171.
The second surface 152a is adhered without a gap via a heat conductive adhesive 174 as a die attach material.

On the lower surface 166a of the heat radiating member 166, a heat transfer portion 175 that surrounds the periphery of the convex portion 171 is formed. The heat transfer portion 175 has a lower surface 16 similar to the seat portion 169.
It slightly projects from 6a. The heat transfer section 175 has a flat tip surface 175a. As shown in FIG. 24B, the front end surface 175a contacts the heat transfer layer 162 of the first circuit board 43 and closes the open end of the through hole 160.

The upper surface 166b of the heat dissipating member 166 has cylindrical boss portions 177 at its four corners. These boss portions 177 project upward from the upper surface 166b and are arranged at positions corresponding to the seat portion 169.

As shown in FIG. 23 and FIG. 24A, the heat dissipation member 166 has four screw holes 178 extending from the seat 169 to the boss 177. One end of the screw hole 178 is opened to the tip end surface of the seat portion 169, and the other end of the screw hole 178 is opened to the upper surface of the boss portion 177.

As shown in FIG. 21, the first circuit board 43
Has four mounting holes 180 at the contact portion with the seat 169.
have. The mounting hole 180 is located outside the mounting area of the TCP 150. Each mounting hole 180 is
It is connected to the screw hole 178 of the heat dissipation member 166.

Of the four mounting holes 180, the two mounting holes 180 located on the diagonal line of the heat dissipation member 166 have screws 187 inserted from below the first circuit board 43. The screw 187 penetrates the mounting hole 180 and is screwed into the screw hole 178 of the heat dissipation member 166. Due to this screw-in, the heat dissipation member 166 is attached to the first circuit board 4
3 is fixed to the surface 43a.

As shown in FIGS. 20, 21 and 24 (A), the cover 167 has a square panel 183 having substantially the same size as the heat radiating member 166, and this panel 1.
And a support frame 184 adhered to the lower surface of 83.
The panel 183 is made of a metal material having excellent thermal conductivity such as an aluminum alloy.
The center portion of the upper surface of the semiconductor chip 152 faces the back surface 152b of the semiconductor chip 152. The support frame 184 is made of a synthetic resin material, and the leads 154 of the TCP 150 and the connection pads 15 are formed.
It surrounds the connection with 6 from the outside. Therefore, the cover 167 is not limited to the TCP 150 and the TCP
The connecting portion between 150 and the first circuit board 43 is integrally covered and hidden.

The panel 183 has insertion holes 186 at its four corners.
a to 186d. Insertion holes 186a to 186d
Are located outside the mounting area of the TCP 150, and are connected to the screw holes 178 of the heat dissipation member 166 via the mounting holes 180 of the first circuit board 43.

Of these four insertion holes 186a to 186d, screws 235 are inserted from below the cover 167 into the two insertion holes 186a and 186b located on the diagonal line of the panel 183, respectively. The screw 235 penetrates the mounting hole 180 and is screwed into the screw hole 178 of the heat dissipation member 166. By this screwing, the heat dissipation member 166
The cover 167 is clamped and fixed to each other with the first circuit board 43 sandwiched therebetween, and the TCP 150 is housed inside the cover 167.

A soft elastic sheet 189 is bonded to the center of the upper surface of the panel 183. The elastic sheet 189 is, for example, a rubber-like elastic body formed by adding alumina to silicone resin, and has thermal conductivity. The elastic sheet 189 is attached to the panel 183 as the screw 235 is tightened.
And the back surface 152b of the semiconductor chip 152.

Therefore, due to the presence of the elastic sheet 189, the semiconductor chip 152 is sandwiched between the panel 183 of the cover 167 and the convex portion 171 of the heat dissipation member 166. Therefore, the contact state between the panel 183 and the semiconductor chip 152 is kept good, and the heat of the semiconductor chip 152 is efficiently transferred to the panel 183. A small hole 190 is formed at the center of the elastic sheet 189.
Is opened.

In the case of this embodiment, the cover 167 is
Thermistor 1 for measuring the heat of the semiconductor chip 152
It is equipped with 91. As shown in FIG. 24A, the thermistor 191 is supported by a flexible thin wiring board 192, and this wiring board 192 is provided with a reinforcing plate 193.
It is attached to the elastic sheet 189 via. The thermistor 191 is embedded in the small hole 190 of the elastic sheet 189 and faces the central portion of the panel 183. Therefore, the thermistor 191 mainly measures the temperature of the panel 183 which is affected by the heat of the semiconductor chip 152.

The wiring board 192 has an elongated lead portion 195.
have. The lead portion 195 is led out to the outside of the cover 167, and the terminal portion 195 a at the tip of the lead portion 195 is connected to the connector 196 on the back surface 43 b of the first circuit board 43. Therefore, the thermistor 191
The temperature information of the panel 183 measured in 4 is input to the control unit of the first circuit board 43.

As shown in FIG. 20 and FIG. 21, the main heat sink 20 is attached to the heat dissipation member 166 of the heat dissipation unit 165.
1 is detachably attached. Heat sink 20
1 is die-cast molded of a metal material having excellent thermal conductivity such as an aluminum alloy.

The heat sink 201 is a heat dissipation panel 202.
Is equipped with. The lower surface of the heat dissipation panel 202 has a heat dissipation member 1
The heat receiving surface 203 is flat and faces the upper surface 166 b of 66. The heat receiving surface 203 has a planar shape that is much larger than the upper surface 166b. Heat dissipation panel 202
Is a flat heat dissipation surface 204 exposed inside the housing 3.
Is doing. A large number of columnar heat dissipation projections 205 are integrally provided on the heat dissipation surface 204, and the existence of these heat dissipation projections 205 ensures a sufficient heat dissipation area of the heat dissipation surface 204.

The heat receiving surface 203 is formed with four recesses 206 into which the boss portions 177 of the heat dissipation member 166 are fitted. The recesses 206 project from the upper surface of the heat dissipation panel 202, and the heat dissipation member 166 and the heat dissipation panel 202 are positioned by fitting the recesses 206 and the bosses 177.

Communication holes 207 are opened at the ends of the recesses 206, respectively. The communication hole 207 is continuous with the screw hole 178 of the boss portion 177 and is opened on the upper surface of the heat dissipation panel 202. Screws 209 are inserted into the communication holes 207 from above, and the heat dissipation panel 202 and the heat dissipation member 166 are connected to each other by screwing the insertion ends of the screws 209 into the screw holes 178.

A soft elastic sheet 210 is arranged between the heat receiving surface 203 of the heat dissipation panel 202 and the upper surface 166b of the heat dissipation member 166. The elastic sheet 210 is, for example, a rubber-like elastic body formed by adding alumina to silicone resin, and has thermal conductivity. This elastic sheet 21
0 is sandwiched between the heat receiving surface 203 and the upper surface 166b as the screw 209 is tightened. Therefore, the upper surface 166b of the heat dissipation member 166 is in close contact with the heat receiving surface 203 of the heat dissipation panel 202 via the elastic sheet 210, and the heat of the semiconductor chip 152 released to the heat dissipation member 166 is
The heat dissipation panel 202 is efficiently transmitted.

As shown in FIG. 5, the heat dissipation panel 202 is
On the front surface 43a of the first circuit board 43, it is located at the left rear end portion of the front surface 43a and is adjacent to the HDD 103.

As shown in FIGS. 21 and 23, a fan support portion 212 is integrally formed at the rear end of the heat dissipation panel 202. The fan support portion 212 includes a pair of left and right support walls 213a and 213b extending in the vertical direction and a horizontal tongue piece 214 connected to the lower ends of the support walls 213a and 213b.
a and 214b. This fan support 212
Is located at the rear end of the first circuit board 43. In this case, a notch 215 that avoids the fan support portion 212 is formed at the left rear corner of the first circuit board 43, and the support walls 213 a and 21 are provided through the notch 215.
The lower end of 3b projects below the first circuit board 43.

As shown in FIGS. 25 and 26, connecting pieces 216a to 216c are integrally formed at the rear end of the fan supporting portion 212 and at the front and rear two positions on the left side of the heat radiating panel 202, respectively. Connecting piece 216a of the fan supporting part 212
Are superposed on the surface 43 a of the first circuit board 43 and fixed to the boss portion 46 of the lower housing 4 with screws 47. Connecting pieces 216b and 216c of the heat dissipation panel 202
Is mounted on the boss portion 46 of the lower housing 4 via the screw 217.
It is fixed to. Therefore, the heat sink 201 is
It is supported by not only the first circuit board 43 but also the lower housing 4.

The electric fan 220 is supported by the fan supporting portion 212. The electric fan 220 has a square fan frame 221 and a rotor 222 supported at the center of the fan frame 221. This rotor 2
A plurality of blades 223 are integrally formed on the outer peripheral surface of 22.

The fan frame 221 is made of a metal material having a high thermal conductivity such as an aluminum alloy. The fan frame 221 includes a support wall 213a,
This fan frame 2 is arranged between 213b.
The lower end of 21 is screwed to the upper surfaces of the tongues 214a and 214b. Therefore, the fan frame 221 is integrally connected to the heat dissipation panel 202 via the support walls 213a and 213b, and the lower portion of the rotor 222 is located between the first circuit board 43 and the bottom wall 4a of the lower housing 4. It is overhanging.

As shown in FIG. 6, the electric fan 220 is
It is connected to the first circuit board 43 via a lead wire 226. Therefore, the electric fan 226 is controlled by the control unit of the first circuit board 43.
In the case of the present embodiment, when the temperature of the panel 183 measured by the thermistor 191 exceeds 80 degrees, the rotor 222
Is driven to rotate.

As shown in FIG. 25, the heat dissipation panel 202 in which the electric fan 220 is integrated is provided in the keyboard mounting opening 8
It is located below the support wall 10 and the reinforcing plate 25 of the keyboard 21. A part of the support wall 10 and the reinforcing plate 25 faces the heat dissipation surface 204 of the heat dissipation panel 202,
A cooling air passage 227 is formed inside the housing 3 in cooperation with the heat dissipation surface 204. The cooling air passage 227 is connected to the electric fan 220, and the heat dissipation convex portion 205 is located in the cooling air passage 227.

When the rotor 222 of the electric fan 220 rotates, the air in the cooling air passage 227 and the air between the first circuit board 43 and the bottom wall 4a of the lower housing 4 are sucked toward the rotor 222. This air is discharged toward the rear of the rotor 222.

As shown in FIG. 6 and FIG. 26, the electric fan 2
20 are arranged on the left side of the connector panel 85, and together with this connector panel 85, the rear wall 4e of the lower housing 4
It is located inside. An exhaust port 228 as shown in FIG. 10 is opened in the rear wall 4e. The exhaust port 228 is
It is connected to the electric fan 220 and is adjacent to the second connector outlet 87.

As shown in FIGS. 20 and 21, the cover 16
A sub heat sink 230 is attached to the device 7. The sub heat sink 230 is made of a metal material having excellent thermal conductivity such as an aluminum alloy.

The sub heat sink 230 has a flat plate portion 231. The plate portion 231 is superposed on the lower surface of the panel 183 of the cover 167. The plate portion 231 has a substantially square shape that is slightly larger than the panel 183. The plate portion 231 has a pair of first communication holes 232a and 232b and a pair of second communication holes 233a and 233b. First and second communication holes 232a, 232b, 233a, 233b
Is located on the diagonal of the plate portion 231, and
It is adapted to match the insertion holes 186a to 186b of the panel 183.

The plate portion 23 of the sub heat sink 230
1 is fixed to the cover 167 using the screw 235. The screw 235 is inserted from below the plate portion 231 into the first communication holes 232a and 232b, and the panel 1
83 through the two insertion holes 186a and 186b and the mounting hole 180 of the first circuit board 43.
6 is screwed into the screw hole 178.

Second communication hole 233 of plate portion 231
a, 233b, the heat dissipation member 166 is connected to the first circuit board 43.
Has a size that allows the screw 187 to be fixed therethrough to be inserted, and the screw 18 is provided inside the communication holes 233a and 233b.
It contains 7 heads.

The plate portion 231 is composed of a pair of brackets 2
36a and 236b are provided. One bracket 23
As shown in FIG. 26, 6a is interposed between the connecting piece 216a of the heat dissipation panel 202 and the boss portion 46 of the lower housing 4, and is fixed to the boss portion 46 together with the connecting piece 216a. The other bracket 236b is interposed between the connecting piece 216c of the heat dissipation panel 202 and the boss portion 46 of the lower housing 4, as shown in FIG.
It is fixed to the boss 46 together with 16c. for that reason,
The sub heat sink 230 is connected to the lower housing 4 and the heat dissipation panel 202.

As shown in FIG. 6, the heat sink 201 having the electric fan 220 is adjacent to the rear end of the left side wall 4b of the lower housing 4. A large number of cooling air inlets 240 are opened in the side wall 4b. The cooling air introduction port 240 is arranged at a position biased forward of the heat sink 201 and faces the left edge of the second circuit board 44. Therefore, the cooling air inlet 240
Is located on the opposite side of the electric fan 220 with the cooling air passage 227 sandwiched therebetween.

As shown in FIG. 26, the fan support portion 212.
The right side support wall 213b is adjacent to the connector panel 85. A bracket 245 is integrally formed on the upper end of the support wall 213b. This bracket 24
A first heat dissipation plate 246 is attached to the unit 5.
The first heat dissipation plate 246 is made of a metal material having excellent thermal conductivity such as an aluminum alloy.

The first heat dissipation plate 246 is an elongated plate body 247 extending in the left-right direction of the lower housing 4.
And a connecting piece 24 connected to one end of the plate body 247.
8 and. The first heat dissipation plate 246 is
By fixing the connecting piece 248 to the lower surface of the bracket 245 via the screw 250, the connecting piece 248 is integrally supported by the support wall 213b. The plate body 247 is a connector panel 8
The plate body 24 is arranged along
The rear end of the connector 7 is hooked on the locking portion 85a of the connector panel 85.

Therefore, the first heat dissipation plate 246 is
It straddles between the heat sink 201 and the connector panel 85, and the heat of the heat sink 201 is made to escape to the connector panel 85.

The first heat radiation plate 246 is located below the rear end of the upper housing 5. A large number of heat dissipation holes 252 as shown in FIG. 10 are opened at the rear end of the upper housing 5, and the outside air is guided to the periphery of the first heat dissipation plate 246 through these heat dissipation holes 252. . A large number of cooling fins 253 are formed on the upper surface of the plate body 247, and the presence of these cooling fins 253 ensures a sufficient contact area between the plate body 247 and the outside air.

As shown in FIGS. 6 and 13, the heat dissipation panel 2
A support wall 256 is integrally formed at the right end of 02. The support wall 256 is adjacent to the HDD 103,
A second heat dissipation plate 257 is attached to the upper end of the support wall 256. The second heat radiating plate 257 is made of a metal material having excellent thermal conductivity such as an aluminum alloy.

As shown in FIG. 13, the second heat dissipation plate 257 has a plate body 258 that extends in the left-right direction of the housing 3 across the upper surface of the HDD 103, and one end of the plate body 256 has a screw 259 interposed therebetween. Is fixed to the upper surface of the support wall 256.

The plate body 258 is arranged inside the keyboard mounting opening 8. The upper surface of the plate body 258 includes the support wall 10 of the keyboard mounting opening 8, the upper surface 93a of the card case 93, and the convex portion 1 of the bracket 121.
It is located substantially flush with the tip of 35. for that reason,
The upper surface of the plate body 258 is in contact with the reinforcing plate 25 of the keyboard 21, supports the keyboard 21 from below, and allows the heat of the heat sink 201 to escape to the reinforcing plate 25.

The plate body 258 of the second heat dissipation plate 257 may be formed to have substantially the same size as the reinforcing plate 25. According to this structure, the heat dissipation performance of the heat sink 201 is further improved, and it is more convenient for preventing the bending of the keyboard 21 during key operation.

As shown in FIGS. 27 to 29, the housing 3
An expansion space 261 is formed inside. The expansion space 261 is located between the bottom wall 4a of the lower housing 4 and the first circuit board 43, and the TCP 150
Next to each other. The expansion space 261 is for accommodating a memory board 262 for expansion. The memory board 262 has a stacking connector 263 on the upper surface facing the first circuit board 43. The stacking connector 263 is arranged at a position biased to one end side of the memory board 262.

The expansion space 261 is the memory board 263.
A board insertion port 264 is provided for inserting and removing. The board insertion opening 264 is opened in the bottom wall 4 a of the lower housing 4, and the bottom lid 2 that closes the board insertion opening 264 in the bottom wall 4 a.
65 is removably attached. Bottom lid 265
Is made of a sheet metal material and has a substantially flat rectangular plate shape. The bottom cover 265 has a pair of screw insertion holes 2 at one end thereof.
66a and 266b, and the screw insertion hole 2
66a, 266b opposite to the other end of the pair of locking pieces 2
67a and 267b.

At the opening edge of the board insertion port 264, the bottom cover 2 is attached.
A support portion 270 is formed to receive the peripheral edge portion of 65.
The support portion 270 has screw insertion holes 266a and 266b.
A pair of nuts 271a and 271b connected to the bottom cover 26
A metal conducting piece 272 that is in contact with 5 is arranged.

The bottom lid 265 has locking pieces 267a, 267b.
Is hooked on the opening edge portion of the substrate insertion opening 264, the peripheral edge portion thereof is overlapped with the support portion 270 of the substrate insertion opening 264. The bottom cover 265 is provided with the screw insertion hole 2
The screws 272 are inserted through 66a and 266b, respectively, and the insertion ends of these screws 272 are screwed into the nuts 271a and 271b, whereby the screws are fixed to the bottom wall 4a.

A stacking connector 275 is arranged on the back surface 43b of the first circuit board 43 facing the expansion space 261. The stacking connector 275 is fitted to the stacking connector 263 of the memory board 262, and by this fitting, the first circuit board 43 and the memory board 262 are electrically connected.

As shown in FIG. 28A, a pair of boss portions 2 for supporting the memory substrate 262 in the expansion space 261.
77a and 277b are arranged. Boss portion 277a,
277b is formed integrally with the support portion 270 of the board insertion port 264, and is arranged inside the board insertion port 264 so as to be separated in the front-rear direction. The middle portion of the memory substrate 262 is superposed on the lower surfaces of the boss portions 277a and 277b. This memory board 262 has screws 27
It is removably supported by the bosses 277a and 277b via 8.

As shown in FIG. 29, the bosses 277a, 2
77b is located directly below the fitting portion between the first stacking connector 50 and the third stacking connector 52. The boss portions 277a and 277b are connected to the bridge portion 280.
Are integrally connected via. Bosses 277a, 2
The top surfaces of the 77b and the bridge portion 280 form a flat support surface 281. The support surface 281 extends along the first and third stacking connectors 50 and 52.

As shown in FIGS. 27 and 28A, a metal conductive piece 283 is attached to the bridge portion 280. The conductive piece 283 includes a pair of first conductive portions 285a and 285b that cover lower surfaces of the boss portions 277a and 277b,
It integrally has a second conductive portion 284 that covers the support surface 281.

The first conductive portions 284a and 284b are in contact with the upper surface of the memory substrate 262. This memory board 26
As shown in FIG. 28B, the ground wiring layer 2 facing the first conductive portions 285a and 285b is provided on the upper surface of the second wiring layer 2
86 is formed. The ground wiring layer 286 contacts the first conductive portions 285a and 285b when the memory substrate 262 is screwed to the boss portions 277a and 277b, and this contact causes the memory substrate 262 to be grounded to the housing 3. Has become.

The second conductive portion 284 is connected to the first circuit board 4
3 is in contact with the back surface 43b. This first circuit board 43
As shown in FIG. 28B, the back surface 43b of the second
A ground wiring layer 287 is formed to face the conductive portion 284 of the ground wiring layer 287, and the ground wiring layer 287 extends along the bridge portion 280. Ground wiring layer 287
Comes into contact with the second conductive portion 284 when the first circuit board 43 is fixed to the lower housing 4, and by this contact,
The first circuit board 43 is grounded to the housing 3.

Therefore, the support surface 28 of the bridge portion 280 is
1 is the first circuit board 43 through the second conductive portion 284.
Of the first circuit board 43, and supports the first circuit board 43 from below at a position corresponding to the fitting portion with the first and third stacking connectors 50 and 52.

According to this structure, even when the third stacking connector 52 is pressed against the first stacking connector 50 from above when connecting the second circuit board 44 to the first circuit board 43, The mating portions of these stacking connectors 50 and 52 are fitted with bosses 277 from below.
a, 277b and the bridge part 280. Therefore, it is possible to prevent the first circuit board 43 from bending downward or sinking when the first and third stacking connectors 50 and 52 are fitted to each other. Can be performed reliably and easily.

As shown in FIG. 1, the display unit 300 is supported by the display supporting portions 6a and 6b of the housing 3. The display unit 300 includes a flat box-shaped housing 301 and a color liquid crystal display 302 housed inside the housing 301. Housing 301 is front panel 303
And a rear panel 304, and an opening 305 for exposing the color liquid crystal display 302 is formed in the front panel 303.

The housing 301 has a connecting portion 307 interposed between the display supporting portions 6a and 6b. The connecting portion 307 extends in the left-right direction of the housing 3, and both left and right ends of the connecting portion 307 are the hinge device 30.
It is rotatably supported by the display supporting portions 6a and 6b of the housing 3 via 8 (one of which is shown in FIGS. 25 and 26).

Therefore, the display unit 300
Can be rotated between a closed position in which the palm rest 7 and the keyboard 21 are covered from above and an open position in which the color liquid crystal display 302 stands upright behind the keyboard 21.

As shown in FIG. 30, a recess 310 is formed in the connecting portion 307 of the housing 301. A cable 311 connected to the drive circuit of the color liquid crystal display 302 is guided to the recess 310. At the rear end of the upper wall 5a of the upper housing 5, a cable guide 313 is provided.
Is attached. This cable guide 313
The recess 3 of the connecting portion 307 is continuous with the inside of the housing 3.
It's getting into 10. A cable insertion port 314 facing the side surface of the recess 310 is opened on the side surface of the cable guide 313. (See Figure 23). The cable 311 is inserted into the cable insertion port 314 from the side surface of the recess 310.
Also, it is guided to the inside of the housing 3 through the cable guide 313.

The cable 311 is guided to the lower side of the right end portion of the keyboard 21 along the inner surface of the rear end portion of the upper wall 5a, and the connector 315 at the tip end of this cable 311 is the first.
Connected to the circuit board 43.

As shown in FIGS. 30 to 32, the upper wall 5
An icon mounting opening 318 is opened at the rear end of a.
The icon mounting opening 318 is located immediately after the keyboard mounting opening 8 and is located between the display support portions 6a and 6b. This icon mounting port 318 has an icon 3
19 are arranged. The icon 319 is made of a translucent synthetic resin material and has an icon mounting opening 318.
Is glued to.

On the surface of the icon 319, a plurality of display marks 321 for displaying the operating state and the content of the function of the computer 1 in a pattern are drawn. The display marks 321 are arranged at intervals in the left-right direction of the housing 3, and are exposed on the housing 3 together with the keyboard 21 when the display unit 300 is rotated to the open position. .

As shown in FIG. 30, a holder 325 made of synthetic resin is arranged inside the rear end of the upper wall 5a. The holder 325 includes a substrate support portion 326 and a speaker support portion 3
27 and a cable support portion 328 are integrally provided.
Each of these supporting portions 326 to 328 is the keyboard mounting opening 8
Are arranged in a line along the rear edge of the opening of the substrate supporting portion 326 and the cable supporting portion 328, and the ends of the substrate supporting portion 326 and the cable supporting portion 328 are provided with the screw 32.
It is supported on the inner surface of the upper wall 5 a via the shaft 9.

As shown in FIG. 32, the substrate support portion 326.
Is located below the icon 319. The diode substrate 331 is supported on the upper surface of the substrate support portion 326. The diode board 331 is arranged substantially parallel to the icon 319, and a flexible wiring board 332 is attached to the upper surface of the diode board 331. As shown in FIG. 30, the wiring board 332 has an elongated lead portion 332a, and the tip of this lead portion 332a is connected to the first circuit board 43.

A plurality of light emitting diodes 333 are arranged in a line on the upper surface of the wiring board 332. The light emitting diode 333 is arranged at a position facing the display mark 321 of the icon 319. Light emitting diode 333
When illuminates, the display mark 321 corresponding to the illuminates, and the operating state and the content of the function of the computer 1 are displayed.

As shown in FIGS. 30 and 33, the speaker support portion 327 supports a speaker 335 for outputting sound. The speaker 335 includes a ring-shaped frame 336 that supports a diaphragm (not shown), and the frame 3
It has a guard 337 fixed to 36 and covering the front surface of the diaphragm, and has a flat disc shape as a whole.

The speaker supporting portion 327 that supports the speaker 335 has a circular fitting portion 340 into which the speaker 335 is fitted. As shown in FIG. 33, the fitting portion 3
40 is located in a range extending from the rear end of the upper wall 5a to below the keyboard 21, and is inclined downward as it goes from the upper wall 5a to the keyboard 21. Therefore, the speaker 335 is arranged inside the housing 3 in a posture in which the speaker 335 is inclined downward and the front half of the speaker 335 is inserted under the keyboard 21.

The speaker 335 is the speaker holder 341.
It is fitted into the fitting portion 340 via. The speaker holder 341 is made of a flexible rubber-like elastic body. The speaker holder 341 has a ring-shaped holder main body 342 into which the frame 336 of the speaker 335 is fitted, and a sound insulating wall 343 extending upward is integrally formed in the front half of the holder main body 342. The upper end of the sound insulation wall 343 is in contact with the lower surface of the reinforcing plate 25 of the keyboard 21 and the lower surface of the second heat dissipation plate 257.

Therefore, the sound insulation wall 343 cooperates with the reinforcing plate 25 and the first heat dissipation plate 257 to form a space 345 that suppresses the diffusion of the sound emitted from the front half of the speaker 335.

As shown in FIG. 33, the rear half of the speaker 335 is located below the upper wall 5a. This upper wall 5a
A plurality of slit-shaped holes 346 for emitting the sound from the speaker 335 are opened. The hole 346 faces the latter half of the speaker 335 and the icon 319.
It is located to the side of.

As shown in FIGS. 31 and 33, the speaker 3
When 35 is mounted on the upper housing 5 together with the holder 325, the peripheral wall 9 connected to the rear edge of the opening of the keyboard mounting port 8 is located between the front half and the rear half of the speaker 335. At the lower end of this peripheral wall 9, a notch 3 that connects the space 345 and the space around the latter half of the speaker 335.
47 is formed.

The lead wire 348 of the speaker 335.
Are connected to the first circuit board 43.

According to such a mounting structure of the speaker 335, the front half of the speaker 335 has the keyboard 21
The sound from the front half of the speaker 335 is transmitted to the keyboard 21 and the lower housing 4 since
It is released toward the space between and.

However, since the speaker holder 341 in which the speaker 335 is fitted has the sound insulation wall 343 in contact with the reinforcing plate 25 of the keyboard 21, the sound from the front half of the speaker 335 is surrounded by the reinforcement plate 25 and the sound insulating wall 343. It is trapped in the open space 345 and is prevented from diffusing into the inside of the housing 3.

Since the space 345 is continuous with the space around the latter half of the speaker 335 through the cutout 347, the space 3
The sound emitted to the speaker 45 is guided to the space around the latter half of the speaker 335 through the notch 347, and the sound emitted from the latter half of the speaker 335 and the hole 3 for sound emission.
It is discharged to the outside of the housing 3 through 46.

Therefore, although the front half of the speaker 335 has entered under the keyboard 21, the sound emitted from this front half is not largely diffused inside the housing 3. Therefore, there is an advantage that the sound quality of the speaker 335 can be improved and the volume emitted to the outside of the housing 3 is increased.

Further, as shown in FIG. 33, the speaker 3
The speaker 3 is tilted so that the speaker 35 is inclined downward.
The sound emitted by 35 is emitted obliquely upward and forward with respect to the housing 3. As a result, when operating the portable computer 1, it becomes easier to hear the sound from the speaker 335.

As shown in FIG. 30, the cable support portion 328 of the holder 325 has a bottom wall 350 facing the upper wall 5a.
have. The bottom wall 350 extends from the lower side of the cable guide 313 toward the right side, and the core (not shown) of the cable 311 introduced into the housing 3 through the cable guide 313 is held on the bottom wall 350. ing.

As shown in FIG. 1, a pair of left and right cushioning members 355 are attached to the housing 301 of the display unit 300.
Is attached. The buffer member 355 is for preventing a collision between the front panel 303 of the housing 301 and the upper surface of the palm rest 7 when the display unit 300 is rotated to the closed position, and is made of a flexible rubber-like elastic body. ing.

As shown in FIGS. 34 and 35, the cushioning member 3
55 is attached to the front surface of the front panel 303. A recess 356 for attaching the cushioning member 355 is formed on the front surface of the front panel 303. A small-diameter insertion hole 357 is formed in the bottom surface of the recess 356. The insertion hole 357 is opened toward the inside of the front panel 303.

The cushioning member 355 integrally has a main body 358 fitted in the recess 356 and a string-like gripping portion 359 connected to the main body 358. The grip portion 359 has a diameter that can be inserted into the insertion hole 357, and a large diameter portion 360 is integrally formed at an end portion of the grip portion 359 that is continuous with the main body 358. The diameter of the large diameter portion 360 is set to be slightly larger than the diameter of the insertion hole 357.

To attach such a cushioning member 355 to the front panel 303, first, the tip of the grip portion 359 is inserted from the outside of the front panel 303 into the insertion hole 357. Then, the front end of the grip portion 359 is grasped from the inside of the front panel 303 with a fingertip, and the grip portion 359 is pulled toward the inside of the front panel 303.

Then, the main body 358 fits into the recess 356, and the large-diameter portion 360 of the grip portion 359 is inserted into the insertion hole 3.
The main body 358 is bitten into the inner surface of 57 and is retained in the concave portion 356 so as to be retained. Therefore, as shown in FIG. 34, the main body 358 is held by the front panel 303 in a state of slightly protruding from the front surface of the front panel 303.

The portable electronic device according to the present invention is not limited to a notebook portable computer, but can be similarly implemented in another portable information processing device such as a word processor.

[0176]

According to the present invention described in detail above, it becomes easy to hear the sound emitted from the speaker in the housing.

[Brief description of drawings]

FIG. 1 is a perspective view of a portable computer according to an embodiment of the present invention.

FIG. 2 is a perspective view of a portable computer showing a state in which a keyboard and an HDD are removed from the housing in an exploded manner.

FIG. 3 is a front view of a portable computer.

FIG. 4 is a diagram showing a first housing having a heat sink in a lower housing.
FIG. 3 is a perspective view showing a state in which the circuit board of FIG.

FIG. 5 is an exploded perspective view showing a state in which the first to third circuit boards are incorporated in the lower housing.

FIG. 6 is a perspective view showing a state where the first to third circuit boards are incorporated in the lower housing.

FIG. 7 is a perspective view of a battery housing portion.

FIG. 8 is a cross-sectional view of a housing showing a mounting portion of a battery connector.

FIG. 9 is a plan view of a housing showing a mounting portion of a battery connector.

FIG. 10 is a rear view of the portable computer.

FIG. 11 is a perspective view showing a state where the HDD is incorporated in the hard disk mounting portion of the housing.

FIG. 12 is a perspective view showing a state where the HDD is tilted and inserted into the hard disk mounting portion of the housing.

FIG. 13: HD incorporated in the hard disk mounting part
Sectional drawing of the housing | casing which shows the positional relationship of D and a keyboard.

FIG. 14 is a sectional view of the HDD.

FIG. 15 is a perspective view of an HDD to which a bracket is attached.

FIG. 16 is a perspective view of the HDD seen from the back side.

FIG. 17 is a sectional view of the portable computer showing a state where the HDD is tilted and inserted into the hard disk mounting portion of the housing.

FIG. 18 is a cross-sectional view of the portable computer showing a state where the HDD is dropped in the hard disk mounting portion of the housing.

FIG. 19 is a cross-sectional view of the portable computer showing a state where the HDD is incorporated in the hard disk mounting portion of the housing.

FIG. 20 is an exploded perspective view showing a mounting structure of a TCP, a heat dissipation unit, a heat sink, and a sub heat sink on the first circuit board.

FIG. 21 is an exploded perspective view showing a mounting structure of a TCP, a heat dissipation unit, a heat sink, and a sub heat sink on a first circuit board.

FIG. 22 is a perspective view showing a state in which the cover having the thermistor is removed from the first circuit board.

FIG. 23 is a cross-sectional view of a portable computer showing the structure of a mounting portion of a TCP, a heat dissipation unit, a heat sink, and a sub heat sink.

FIG. 24A is a sectional view of a TCP mounting portion.
FIG. 24B is a cross-sectional view showing an enlarged part X of FIG.

FIG. 25 is a cross-sectional view of a portable computer showing the structure of a mounting portion of a TCP, a heat dissipation unit, a heat sink and a sub heat sink.

FIG. 26 is a cross-sectional view of the portable computer showing the structure of the attachment portion of the heat sink, the sub heat sink, and the first heat dissipation plate to the housing.

FIG. 27 is a perspective view of the portable computer showing an exploded state of the memory substrate and the bottom cover removed from the housing.

FIG. 28A is a cross-sectional view of the portable computer showing the structure of the mounting portion of the memory substrate and the bottom lid with respect to the housing. FIG. 29B is an enlarged cross-sectional view showing the Y portion of FIG.

FIG. 29 is a cross-sectional view of the portable computer showing the structure of the mounting portion of the memory board and the bottom cover with respect to the housing.

FIG. 30 is an exploded perspective view of the portable computer showing a state where the holder is removed from the upper housing.

FIG. 31 is a perspective view of a portable computer showing a state where an icon and a speaker are incorporated in a housing.

FIG. 32 is a cross-sectional view of the portable computer showing the structure of the attachment part of the icon.

FIG. 33 is a cross-sectional view of the portable computer showing the structure of the mounting portion of the speaker.

FIG. 34 is a perspective view showing a state where a buffer member is attached to the housing of the display unit.

FIG. 35 is a perspective view showing a state in which the buffer member is removed from the housing of the display unit.

[Explanation of symbols]

3 ... Casing, 21 ... Keyboard, 327 ... Speaker support part, 335 ... Speaker, 346 ... Hole.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yuki Ito             1-1 Shibaura, Minato-ku, Tokyo Co., Ltd.             Toshiba headquarters office

Claims (9)

[Claims] 1. A housing having a keyboard on an upper surface thereof, a speaker arranged in the housing, facing the front of the housing, and tilted downward to the front of the keyboard, and an opening on the upper surface of the housing. And a plurality of holes facing the speaker, the portable electronic device. 2. The structure according to claim 1, wherein the housing is
A portable electronic device having a built-in holder having a speaker support portion, wherein the speaker is supported by the speaker support portion. 3. In the description of claim 1 or 2,
The speaker is located at the rear end of the housing,
The portable electronic device, wherein the plurality of holes are located behind the keyboard. 4. The speaker according to claim 3, wherein the speaker is supported by the speaker supporting portion via a speaker holder, and the speaker holder has a ring-shaped holder body into which the speaker fits. Portable electronic device. 5. The speaker according to claim 4, wherein the speaker has a front half portion that enters below the keyboard and a rear half portion that faces the hole, and the holder main body corresponds to the front half portion of the speaker. At a position, there is a sound insulating wall that extends so as to contact the lower surface of the keyboard and prevents sound emitted from the front half of the speaker from diffusing into the inside of the housing. Is a portable electronic device connected to the latter half of the speaker. 6. The display device according to claim 1, wherein the housing has a display support portion supporting a display unit at a rear end portion thereof, and the display unit includes the keyboard from above. A portable electronic device, which is rotatable between a cover closed position and an open position standing upright behind the keyboard. 7. A housing having a keyboard on an upper surface thereof, a speaker supporting portion arranged in the housing, a speaker supporting portion supported by the speaker supporting portion, facing the front of the housing, and falling forward with respect to the keyboard. A portable electronic device comprising: a tilted speaker; and a plurality of holes that are opened in an upper surface of the housing and face the speaker. 8. The housing according to claim 7, wherein the housing is
The display unit has a display support portion for supporting a display unit at a rear end thereof, and the display unit has a closed position in which the display unit is laid down to cover the keyboard and the hole, and an open position in which the display unit stands upright behind the keyboard and the hole. A portable electronic device characterized in that it is rotatable between them. 9. In the description of claim 7 or claim 8,
The speaker support portion has a fitting portion that faces the front of the housing and is inclined frontward and downward with respect to the keyboard, and the speaker is fitted into the fitting portion via a ring-shaped speaker holder. A portable electronic device characterized in that