JP3346801B2 - Electronics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device such as a book-type personal computer or a word processor, and more particularly to a structure for locking a storage component such as a battery pack removably housed in its housing.

[0002]

2. Description of the Related Art Recently, a flat box-shaped base unit has
Various book-type or notebook-type personal computers provided with a keyboard and a flat panel display unit are provided.

[0003] This type of personal computer is provided with a rechargeable battery pack that acts as a driving power source so that it can be used in places where commercial power is not available. Since the battery pack needs to be replaced with a new battery pack when the charging function is deteriorated due to long-term use, the battery pack is removable from the base unit.

For this reason, the conventional personal computer has a storage space for storing the battery pack inside the base unit. The storage space is provided with a lock mechanism that locks the battery pack into the storage space so that the battery pack cannot be taken out and that can artificially release the lock.

[0005] The lock mechanism has a knob that can be operated by a fingertip by an operator. The knob is exposed on the side surface or the bottom surface of the base unit. By sliding the knob with a fingertip, the lock of the battery pack is released, and the battery pack can be pulled out from the base unit.

[0006]

However, when the knob is exposed outside the base unit, the operability of the knob is improved, but since the fingertip easily touches the knob, the knob is erroneously inserted. There may be a risk of moving.

As a countermeasure against this, it is conceivable to provide a cover for covering the knob on the base unit. However, according to this configuration, it is necessary to remove the cover when operating the knob, or to hold the cover at a position where the knob is exposed, and there is a problem that the knob is operated in two stages.

Further, after the unlocking of the battery pack is completed, it is necessary to return the cover to the original position or to attach the cover to the base unit, which complicates the work. In addition, if the cover is neglected after the lock is released, the knob is left exposed, and there is a problem that erroneous operation cannot be prevented.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electronic device which can prevent a shutter from being forgotten and prevent erroneous operation.

[0010]

In order to achieve the above object, an electronic apparatus according to the present invention is provided with a housing having a peripheral wall having an open window and a storage space, and a housing which can be taken out of the housing space. It has a storage component to be stored and a lock mechanism for locking the storage component in the storage space. The lock mechanism has an engagement piece removably engaged with the storage component, and a pressing piece facing the window, and a locking position where the engagement piece engages with the storage component; A lock lever supported by the housing so as to be rotatable over a lock release position where the engagement piece is disengaged from the storage component; and a first spring for urging the lock lever toward the lock position. The movable portion is movable between a closed position for closing the window portion and an open position for opening the window portion to expose the pressing piece of the lock lever, and when the opening portion is moved, the pressing piece is caught. It is characterized by including a shutter having an edge, and a second spring for urging the shutter toward a normally closed position.

[0011]

In this configuration, when a storage component is stored in the storage space, the engagement piece of the lock lever is hooked on the storage component, and the storage component is locked in the storage space. To release the lock of the storage component, first, the shutter is moved from the closed position to the open position. Due to this movement, the pressing piece of the lock lever is hooked on the edge of the shutter, and the shutter is held at the open position.
Therefore, the window is opened, and the pressing piece of the lock lever is exposed to the outside of the housing through the window.

Next, the pressing piece exposed at the window is pressed with a fingertip. By this pressing, the lock lever rotates from the lock position to the unlock position against the urging force of the first spring, and the engagement piece of the lock lever is disengaged from the storage member. Therefore, the lock of the storage member is released, and the storage member can be removed from the storage space.

When the pressing piece is pressed, the pressing piece separates from the edge of the shutter, and the holding of the shutter is released. Therefore, the shutter is forcibly pushed from the open position to the closed position by the second spring, and closes the window.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings.

FIG. 4 discloses an A4 size book-type personal computer 1. The personal computer 1 includes a flat box-shaped base unit 2 and a flat panel display unit 3.

As shown in FIG. 1, the housing 4 constituting the outer shell of the base unit 2 is divided into a bottom case 5 having an upper surface opened and a top cover 6 covering the upper surface opening of the bottom case 5. ing. The bottom case 5 and the top cover 6 are made of a synthetic resin material such as an ABS resin.

As shown in FIG. 3, the bottom case 5 has a bottom wall 5a and a peripheral wall 5b connected to the bottom wall 5a. The top cover 6 has an upper wall 6a and a peripheral wall 6b connected to the upper wall 6a. Peripheral wall 6 of top cover 6
b is continuous with the peripheral wall 5b of the bottom case 5, and the peripheral walls 5b and 6b constitute the front surface, the left and right side surfaces, and the rear surface of the housing 4.

A keyboard outlet 7 is opened in the front half of the upper wall 6a of the top cover 6. Keyboard outlet 7
Has a size that covers substantially the entire front half of the upper wall 6a. A projection 8 is formed at the rear end of the upper wall 6a. The projection 8 extends over the entire width of the top cover 6.
Leg mounting portions 10a, 10 formed in the left and right ends of the
b is formed. At the bottom of the leg attachment portions 10a, 10b, openings 11a,
11b is formed.

As shown in FIGS. 3 and 4, a keyboard device 13 is incorporated in the front half of the housing 4. The keyboard device 13 includes a keyboard body 14 made of a synthetic resin. The keyboard body 14 is provided with the keyboard outlet 7
It is shaped like a rectangular plate that fits into. The keyboard body 14 has a flat upper surface and a lower surface, and a large number of keys 15 are arranged on the upper surface.

The film 1 is provided on the lower surface of the keyboard body 14.
The reinforcing plate 17 made of aluminum is overlapped with the intermediary 6. A circuit pattern (not shown) for guiding switching input by key operation is printed on the film 16. The reinforcing plate 17 has a rectangular plate shape having the same size as the keyboard body 14. The reinforcing plate 17 has a shielding function of reinforcing the keyboard body 14 and at the same time preventing switching noise accompanying key operation from leaking into the housing 4. Such a keyboard device 13
The key 15 is exposed on the upper surface of the housing 4 through the keyboard outlet 7 and the reinforcing plate 17 is exposed inside the housing 4.

As shown in FIG. 4, the display unit 3 includes a thin box-shaped housing 20 and a housing 2.
And a liquid crystal display 21 housed in the liquid crystal display 21.
The housing 20 is divided into a front panel 20a and a rear panel 20b.
A display window 22 for exposing the liquid crystal display 21 is formed on the display.

The left and right ends of the housing 20 are formed with pivoting legs 24 and 25, respectively. Legs 24, 25
As shown in FIG. 6, one leg portion 24 is representatively formed by abutting a front leg portion 24a continuous with the front panel 20a and a rear leg portion 24b continuous with the rear panel 20b. The legs 24 and 25 enter the leg attachment portions 10a and 10b and are connected to the bottom case 5 of the housing 4 via hinge devices 26, respectively.

The hinge device 26 has a hinge shaft 27 projecting from the side surface of the leg 24, as shown in FIG.
It has. The hinge shaft 27 is fixed to a bracket (not shown) accommodated in the leg 24, and another bracket 28 is connected to the leading end of the hinge shaft 27 so as to be rotatable around the axis. I have. A wave washer 29 is interposed between the bracket 28 and the hinge shaft 27. The wave washer 29 provides frictional resistance between the bracket 28 and the hinge shaft 27, and the free rotation of the hinge shaft 27 is restricted by the presence of the frictional resistance. The bracket 28 is inserted into the bottom case 5 from above the bottom case 5, and is fixed to the rear surface of the bottom case 5 via screws 23.

The hinge shaft 27 serves as a pivot of the display unit 3. Therefore, the display unit 3 has a first position that covers the keyboard device 13, a second position in which the liquid crystal display 21 stands up behind the keyboard device 13, and a position where the liquid crystal display 21 is nearly horizontal to the opposite side of the keyboard device 13. It is rotatable over a third position that has been tilted down to an angle. As shown in FIG. 5, when the display unit 3 is rotated to the first position, the housing 20 of the display unit 3 is flush with the front and side surfaces of the housing 4 and the projection 8, and The computer 1 has a flat box shape which is convenient to carry.

The top cover 6 is attached to the bottom case 5
The display unit 3 mounted on the bottom case 5 is detachably mounted on the bottom case 5 in a state where the display unit 3 is rotated to the third position. As a result, the hinge device 26 is covered with the projection 8 of the top cover 6, and the legs 24 and 25 are apparently connected to the leg attachment portions 10a and 10a.
10b.

As shown in FIG. 2, a floppy disk drive (hereinafter referred to as FDD) 30, a hard disk drive (hereinafter referred to as HDD) 40 and a battery pack are provided in the front half of the bottom case 5 from right to left. 50 are arranged in this order. The FDD 30, HDD 40, and battery pack 50 are located below the keyboard device 13.

The FDD 30 has a metal casing 31. On the front surface of the casing 31, an insertion slot 32 for inserting and removing a floppy disk and a push button 33 for pressing when removing the inserted floppy disk are arranged. Metal brackets 34a and 34b are attached to the left and right side surfaces of the casing 31, respectively. Each bracket 34a, 34b is
, A pair of tongue pieces 35a, 35b, 36a,
36b.

The FDD 30 is mounted on the bottom wall 5a with the insertion port 32 and the push button 33 facing forward of the bottom case 5. For this reason, the insertion opening 3 is located at a position deviated rightward on the front surface of the bottom case 5.
2 and the elongated opening 37 exposing the push button 33
Is formed.

As shown in FIG. 2 and FIG. 3, the HDD 40 is a housing 4 having a closed structure for accommodating a magnetic disk and a head.
1 and a circuit board 42 mounted on the upper surface of the housing 41. On the upper surface of the circuit board 42, the HDD 4
Various circuit components 43 constituting the control circuit and the drive circuit
Has been implemented. A metal bracket 44 is attached to the peripheral surface of the housing 41. Bracket 44
Has a pair of fixing pieces 45a and 45b. These fixing pieces 45a and 45b are fixed to the boss portion 46 on the bottom wall 5a via screws 47.

The battery pack 50 serves as a power supply for driving the personal computer 1 when the personal computer 1 is used cordlessly, and is of a rechargeable type. The battery pack 50 includes a flat rectangular box-shaped case 51. The case 51 contains a plurality of batteries (not shown). This case 51 is a bottom wall 5a of the bottom case 5.
It is placed on.

As shown in FIG. 2 and FIG.
A pair of guide walls 52a, 52b that guide the left and right side surfaces of the case 51 are provided upright on the bottom wall 5a. The guide walls 52 a and 52 b define a storage space 53 for the battery pack 50 inside the bottom case 5. The storage space 53 is located at the left end of the bottom case 5, and a battery insertion opening 54 connected to the storage space 53 is opened at a position on the left side of the front surface of the bottom case 5. For this reason, the battery pack 50 is inserted and removed from the front of the housing 4.

As shown in FIG.
Is a bottom opening 5 wrapping around the bottom wall 5a of the bottom case 5.
4a. The opening front edge of the bottom opening 54 a is recessed from the front surface of the bottom case 5. As shown in FIG. 8A, the case 51 of the battery pack 50
At the front end of the bottom surface, a convex portion 55 projecting downward is formed over the entire width. The convex portion 55 is connected to the battery pack 50.
Is inserted into the storage space 53, the bottom opening 54a
The bottom case 5 forms a part of the bottom wall 5 a of the bottom case 5. The protrusion 55 serves as a finger hook when the battery pack 50 is pulled out of the storage space 53.

As shown in FIG. 8, a pair of stoppers 56a and 56b is provided at the end of the storage space 53 so as to project therefrom. The stoppers 56a and 56b are configured to abut on the insertion end surface of the battery pack 50, and the abutment defines the insertion position of the battery pack 50. As shown in FIG. 8B, positive and negative power supply terminals 57 a and 57 b connected to the battery are provided on the insertion end surface of the case 51.
A pair of connection terminals 58a and 58b connected to a temperature fuse and a temperature sensor (not shown) in the case 51 are arranged.

As shown in FIG. 2, a board unit 60 is accommodated in the rear half of the bottom case 5. The board unit 60 is located behind the FDD 30, the HDD 40 and the battery pack 50, and extends over the entire width of the bottom case 5. As shown in FIGS. 9 and 11, the board unit 60 of the present embodiment includes first to fifth circuit boards 61.
a to 61e and the circuit boards 61a to 61e
And a shield frame 62 that surrounds the circuit boards 61a to 61e while juxtaposing them in three steps with an interval in the thickness direction.

First to fifth circuit boards 61a to 61e
Is cut out of a single rigid substrate base to an appropriate size, and a predetermined circuit pattern (not shown) is printed on both sides thereof. As shown in FIG.
The first to fifth circuit boards 61a to 61e include a first board assembly 63 in which first to third circuit boards 61a to 61c are juxtaposed in the width direction of the bottom case 5, and fourth and fifth circuit boards 61a to 61e. 5 is divided into a second board assembly 64 in which the five circuit boards 61d and 61e are arranged side by side in the width direction of the bottom case 5.

The first circuit board 61a and the second circuit board 6
1b is electrically connected to the first circuit board 6 via a flexible first connection board 65a.
1a and the third circuit board 61c are flexible
Are electrically connected via the connection board 65b. Similarly, the fourth circuit board 61d and the fifth circuit board 61e are electrically connected via a flexible third connection board 65c. Further, the first circuit board 61a and the fourth circuit board 61d are electrically connected via a flexible fourth connection board 65d. Therefore, the first to fifth circuit boards 61a to 61e are electrically connected in spite of being divided from each other.

A large number of circuit components 66 are mounted on both sides of each of the circuit boards 61a to 61e. The circuit components 66 are electrically connected via the circuit pattern. The circuit components 66 include components that emit high-frequency noise during operation and components that generate heat. In particular, in the case of the present embodiment, the third circuit board 61c is a power supply board, and the circuit components 66 that generate heat during operation are gathered here.

The shield frame 62 includes a first shield substrate 68 and a second shield substrate 69, and a connecting end plate 70 interposed between the shield substrates 68 and 69.
And The shield substrates 68 and 69 and the connection end plate 70 are made of sheet metal having an electromagnetic shielding function.

As shown in FIGS. 3 and 10, the first shield substrate 68 is composed of an elongated substrate 71 overlaid on the bottom wall 5 a of the bottom case 5, and a rising portion rising from a side edge of the substrate 71. 72 are integrally provided. Board part 71
Is a first support piece 73 for receiving the first circuit board 61a.
And a second support piece 74 for receiving the second circuit board 61b
And a third support piece 75 for receiving the third circuit board 61c. Each of these support pieces 73, 74, 75
Is configured by cutting and raising the substrate unit 71 upward,
The rising heights of the first support piece 73 and the second support piece 74 are substantially equal. On the other hand, the third support piece 7
The rising height of 5 is higher than the rising height of the other support pieces 73 and 74.

As shown in FIG. 9, the first circuit board 61a
The second circuit board 61b is screwed to the tip of the first support piece 73 and the second support piece 74, respectively. In this case, the board part 71 covers the first and second circuit boards 61a and 61b from below, and
The circuit component 66 enters between the circuit board 1 and the circuit boards 61a and 61b.

The first circuit board 61a and the third circuit board 6
As shown in FIG. 9, the second connection board 65b for connecting the first circuit board 1c to the third circuit board 61c is bent in a substantially U-shape. Above the circuit boards 61a and 61b. The end of the third circuit board 61c opposite to the connection portion with the connection board 65b is screwed to the tip of the third support piece 75. From this, the first shield substrate 6
8, the first to third circuit boards 61a to 61c are supported in a two-tiered state.

The substrate part 71 of the first shield substrate 68
The end corresponding to the second circuit board 61b is extended rightward. The extension 71a is located just behind the FDD 30, and a cover 80 made of sheet metal as shown in FIG. 10 is installed on the extension 71a. The cover 80 includes a partition wall 8 located above the extension 71a.
One. A plurality of tongue pieces 82 are formed at four corners of the cover 80. The tongue piece 82 is extended portion 71a
And the tip of the second support piece 74 are fixed via screws 83, respectively.

As shown in FIGS. 2 and 9, the second shield substrate 69 includes an elongated substrate portion 85 extending in the width direction of the housing 4.
And an upright portion 8 rising from one side edge of the substrate portion 85
6 are integrally provided. The board portion 85 includes a first support piece 87 that receives the fourth circuit board 61d and a second support piece 88 that receives the fifth circuit board 61e. 4th
The circuit board 61d is screwed to the tip of the first support piece 87, and the fifth circuit board 61e is screwed to the tip of the second support piece 88.

With the circuit boards 61a to 61e fixed to the first shield board 68 and the second shield board 69, respectively, as shown in FIG.
8, 69 are connected to each other via a fourth connection board 65d. And these shield substrates 68 and 69 are
Of the connection board 65d is bent into a substantially U-shape.
And are connected to each other via screws (not shown). As a result, each shield substrate 68,
The 69 substrate portions 71 and 85 face each other, and the substrate portion 8
Fourth and fifth circuit boards 61d, 61 fixed to
e is the first to third circuit boards 61a on the board section 71
-61c.

Therefore, the first to fifth circuit boards 6
1a to 61e are stacked in three stages in the thickness direction of the housing 4. In the case of the present embodiment, the power supply substrate having a large heat value, that is, the third circuit board 61c is replaced with the first circuit board 61c.
a and the fourth circuit board 61d.

First and second shield substrates 68 and 69
In a state in which the shield frame 62 is overlapped, the upright portions 72 and 86 are substantially flush with each other and constitute the rear surface and the left side surface of the shield frame 62. The upright portions 72 and 86 are provided with a plurality of connector insertion openings 92 for leading out various connectors 91.

As shown in FIGS. 2 and 3, the connecting end plate 70 is interposed at the front ends of the board portions 71 and 85, and is fixed to the board portions 71 and 85 via screws 93. . The connection end plate 70 constitutes the front surface of the shield frame 62, and a fourth circuit board 61d is supported on the upper end of the connection end plate 70. Also, the connection end plate 70
A recess 94 is formed at the left end of the battery pack 50, into which the insertion tip of the battery pack 50 enters.

First to fifth circuit boards 61a to 61e
And a shield frame 62 as a unit are incorporated in the latter half of the bottom case 5 as they are. Then, as shown in FIGS. 2 and 3, the plurality of tongue pieces 95 extending from the connection end plate 70 and the tongue piece 95 at the front right end of the second shield substrate 69 are attached to the bottom wall 5 a of the bottom case 5. Is fixed via screws 47 to the boss portion 46 above the boss portion.

Fixing pieces 96a, 96b are formed at the left and right ends of the upright portions 72, 86, which are the rear surfaces of the shield frame 62. The fixing pieces 96a and 96b are
And the fixing pieces 96a, 9
The bracket 28 of the hinge device 26 is fastened to 6b together. For this reason, the shield frame 62 also supports the display unit 3.

As shown in FIGS. 1 and 2, a pair of left and right covers 98a and 98b made of synthetic resin are fixed to the rear end of the upper surface of the shield frame 62. Cover 9
8a and 98b cover the open ends of the leg attachment portions 10a and 10b from below when the top cover 6 is put on the bottom case 5, and these covers 98a and 98b are provided.
b constitutes the bottom surface of the leg attachment portions 10a and 10b.

As shown in FIG. 2, among the first to fifth circuit boards 61a to 61e stacked in three layers, the fourth circuit board 61d located at the uppermost level has, for example, a keyboard controller on its upper surface. It is provided with a scheduled addition section 101 for adding the circuit component 100 for version upgrade. The planned extension portion 101 is formed by a circuit pattern, and is located at the center in the length direction of the board unit 60. The board portion 85 of the second shield substrate 69 that covers the fourth circuit board 61d from above has a notch 102 at least in a portion corresponding to the planned addition portion 101, and includes the planned addition portion 101 through the cutout 102. Most of the upper surface of the fourth circuit board 61d is exposed above the board unit 60.

As shown in FIG. 1, the upper surfaces of the FDD 30, the HDD 40, and the battery pack 50
05. The shield plate 105 includes a flat rectangular plate-shaped main portion 105 a corresponding to the planar shape of the front half of the bottom case 5. Mounting tongues 106 are formed at a plurality of locations on the periphery of the main portion 105a.

The shield plate 105 has a plurality of portions of the main portion 105a which are mounted on the bracket 3 of the FDD 30 through screws (not shown).
The tongue pieces 4a, 34b are fixed to the tongue pieces 35a, 35b, 36a, 36b, and the mounting tongue piece 106 is fixed to the boss 46 on the bottom wall 5a of the bottom case 5 via screws 47. In this case, the mounting tongue piece 106 located on the trailing edge side of the main portion 105a overlaps the tongue pieces 95a and 95b of the shield frame 62 on the boss portion 46, and the shield frame 62 and the shield plate 105 are electrically connected. It is kept in condition.

As shown in FIG. 3, the main portion 105a of the shield plate 105 is located below the keyboard device 13 and faces the reinforcing plate 17 of the keyboard device 13. Metal leaf springs 107a and 107b are screwed to the left and right ends of the upper surface of the shield plate 105.
Each of the leaf springs 107a and 107b has a plurality of contact pieces 108 that can be elastically deformed. The contact piece 108 is in contact with the reinforcing plate 17 of the keyboard device 13, so that the shield plate 105 and the reinforcing plate 17 are kept in a conductive state.

As shown in FIG. 12, the shield plate 105
Has an extension 110 integrally extending from the rear end of the main portion 105a toward the substrate unit 60. Extension 110
Has a shape corresponding to the notch 102 of the shield frame 62, and covers the fourth circuit board 61d including the notch 102 and the planned extension portion 101 from above. A connecting piece 111 is integrally formed at the tip of the extension 110. The connecting piece 111 is screwed to the rear end of the shield frame 62, and thereby the lifting of the extension 110 is suppressed.

As shown in FIG. 3, the extension 110 is close to the rear half of the upper wall 6a of the top cover 6. The extension 110 is provided in the elongated recess 1 extending in the width direction of the housing 4.
12 are provided. A reflective liquid crystal display 113 for displaying the operation state of the personal computer 1 is attached to the recess 112. Liquid crystal display 11
Numeral 3 is in the shape of an elongated strip. The liquid crystal display 113 is fitted in the recess 112 so as to be immovable in the width direction of the housing 4, but is fitted in the front and rear direction of the housing 4 so as to be movable over a predetermined range.

That is, the size of the concave portion 112 in the front-rear direction is larger than the size of the liquid crystal display 113 in the front-rear direction, and a pair of locking pieces extending inward at the front edge and the rear edge of the concave portion 112, respectively. 114a, 114b, 1
15a and 115b are cut and raised. As shown in an enlarged manner in FIG. 13, the locking pieces 114a, 114b, 115
A gap 116 is formed between the liquid crystal display 113a and the edge of the liquid crystal display 113, and the liquid crystal display 113 can move back and forth by the gap. The liquid crystal display 113 is connected to the extension 110
Project above the upper surface of the.

An elongated display window 117 for exposing the liquid crystal display 113 is opened in the rear half of the upper wall 6a of the top cover 6. The display window 117 is closed by a transparent protective cover 118.

As shown in FIG. 13, protrusions 120a extending along the front and rear edges of the display window 117 are provided on the inner surface of the upper wall 6a.
120b are integrally provided. Projections 120a, 12
0b is located just above the leading edge corner and the trailing edge corner of the liquid crystal display 113. These projections 120a, 120
The mutually opposing portions b are guide surfaces 121a and 121b that are inclined in a direction away from each other as they go downward. When the top cover 6 is put on the bottom case 5, the guide surfaces 121 a and 121 b
Are in contact with the leading edge corner and the trailing edge corner, respectively.

By this contact, the liquid crystal display 113
Move back and forth according to the inclination of the guide surfaces 121a and 121b, and a dimensional error between the display window 117 of the top cover 6 and the liquid crystal display 113 is absorbed. At the same time, the liquid crystal display 113 is pressed against the bottom surface of the recess 112 so that the liquid crystal display 113 is prevented from tilting.

As shown in FIG. 14, the board unit 6
0 is the first card slot 125 and the second
Card slot 126. These card slots 125 and 126 are arranged in two rows vertically along the thickness direction of the housing 4. The lower first card slot 125 is provided with the first shield substrate 68.
And a partition wall 81 of the cover 80. The card slot 125 has an expansion card 1 that is used in a fixed manner and has a low frequency of insertion and extraction.
27 is inserted. Then, as apparent from FIG. 9, the first card slot 125
A second circuit board 61b is located at the end of the second circuit board 61, and a connector (not shown) for connecting the expansion card 127 is mounted on the second circuit board 61b.

The second card slot 1 located on the upper side
26 is formed between the partition wall 81 of the cover 80, the substrate portion 85 of the second shield substrate 69, and the shield plate 105. For example, an interface card 128 that is frequently inserted and removed is inserted into the card slot 126. As shown in FIG. 2, the interface card 128 has terminal portions 129a at both ends.
129b, and is thinner than the expansion card 127. And the second card slot 1
A fifth circuit board 61e is located at the end of 26, and a connector (not shown) to which the terminal section 129a of the interface card 127 is connected is mounted on the fifth circuit board 61e.

As shown in FIGS. 17 and 18, the board unit 60 has a third card slot 131 at the left end. The third card slot 131 is formed between the fifth circuit board 61e and the board section 85 of the second shield board 69. Third card slot 131
Has a slit-shaped card insertion opening 133 opened on the left side surface of the shield frame 62, and another expansion card 132 is inserted into the card slot 131 via the card insertion opening 133. . A connector (not shown) to which the expansion card 132 is connected is mounted on the fifth circuit board 61e.

As shown in FIG. 14 and FIG.
Is provided with an opening 135 connected to the first card slot 125 and the second card slot 126.
The opening 135 includes a side opening 135a opened on the right side surface of the housing 4 and a top opening 135b opened on the upper wall 6a of the top cover 6 continuously with the side opening 135a.
And a bottom opening 135c opened to the bottom wall 5a of the bottom case 5 continuously to the side opening 135a. On the edge of the upper wall 6a connected to the upper opening 135b,
A flat receiving portion 136 projecting inside the upper surface opening 135b is formed.

As shown in FIG. 15, the opening 135 is covered by a cover 140. The cover 140 is a cover support 141 fixed to the bottom case 5 of the housing 4.
And a first cover member 142 detachably connected to the cover support 141, and a second cover member 143 pivotally supported by the cover support 141 to be openable and closable.

The cover support 141 has a bottom opening 135.
c, and a flat fitting portion 144 to be fitted into the fitting portion 144.
And a pair of vertical holding walls 145a, 145b located inside the side opening 135a. The holding walls 145a and 145b are separated from each other in the front-rear direction of the housing 4 and the boss portions 146a and
6b are fixed via screws 147, respectively. The holding walls 145a and 145b have substantially the same height as the peripheral wall 5b of the bottom case 5. Further, the holding walls 145a, 145
5b is provided with engagement holes 148a, 148b and
9a and 149b.

The first cover member 142 is for opening and closing the first card slot 125, and has an elongated flat plate shape extending between the holding walls 145a and 145b. The first cover member 142 has a side opening 135a.
And holding walls 145a, 145b
A pair of engaging projections 150a and 150b is provided on the surface facing the pair. The engagement protrusions 150a and 150b are
48a and 148b are removably engaged. By this engagement, the first cover member 142 is attached to the cover support 14.
1 and closes the first card slot 125 from the side. In this state, the first cover member 142 is flush with the peripheral wall 5b of the bottom case 5 and forms a part of the peripheral wall 5b.

The second cover member 143 is for opening and closing the second card slot 126,
An upper wall portion 152 that covers the upper surface 35b and a side wall portion 153 that covers the upper half of the side opening 135a continuously to the upper wall portion 152 are provided. Each of the upper wall portion 152 and the side wall portion 153 has a flat plate shape that is elongated in the front-rear direction.

A pair of legs 154a and 154b extending downward are formed at both front and rear ends of the side wall 153. The legs 154a, 154b sandwich the holding walls 145a, 145b of the cover support 141. Each of the legs 154a and 154b has a pivot hole 155 at its tip.
a, 155b are open. Rotation holes 155a, 15
5b is rotatably fitted to the pivoting projections 149a, 149b. By this fitting, the second cover member 14
Reference numeral 3 denotes a closed position covering the upper half of the upper surface opening 135b and the side opening 135a with the rotation holes 155a and 155b serving as fulcrums, and a right side of the housing 4 to rotate both the openings 135b and 135b. It is designed to rotate over an open position where 135a is opened.

When the second cover member 143 is rotated to the closed position, the upper wall portion 152 is flush with the upper wall 6a of the top cover 6, and the side wall portion 153 is connected to the side wall 6b of the top cover 6. And constitutes a part of the top cover 6. Moreover, the upper wall portion 152 overlaps the receiving portion 136 inside the upper surface opening 135b from above, thereby suppressing the rising of the upper wall 6a of the top cover 6.

As shown in FIG. 14, when the second cover member 143 is rotated to the closed position, the locking portion 156 at the tip of the upper wall 152 is locked with the locking projection 157 at the edge of the upper wall 6a.
a, 157b to hold the second cover member 143 in the closed position.

As shown in FIGS. 14 to 16, the side wall portion 153 of the second cover member 143 has a terminal outlet 160 connected to the second card slot 126. The terminal outlet 160 is provided at a position facing the terminal portion 129 b of the interface card 128, and has a long hole shape extending in the front-rear direction of the housing 4.

The side wall 153 has a terminal outlet 160
A cover plate 161 that opens and closes is mounted. Lid plate 16
1 has an elongated plate shape that matches the opening shape of the terminal outlet 160, and has a pivot 162 and a locking projection 163 (only one is shown in FIG. 14) at the front and rear ends. The pivot 162 is rotatably supported by the opening edge of the terminal outlet 160. For this reason, the cover plate 161 pivots around the pivot 162 between a closed position in which the terminal outlet 160 is closed and an open position in which the terminal outlet 160 is rotated to the right of the side wall 153 to open the terminal outlet 160. It is supposed to be.

When the cover plate 161 is rotated to the closed position, the locking projection 163 is hooked on the edge of the opening of the terminal outlet 160 and holds the cover plate 161 at the closed position. At the same time, when the cover plate 161 is closed,
Are flush with the side wall 153 of the second cover member 142 and constitute a part of the side wall 153.

As shown in FIG. 14, when the cover plate 161 is turned to the open position in a state where the interface card 128 is inserted in the second card slot 126, the terminal of the interface card 128 is passed through the terminal outlet 160. The portion 129b is exposed. Therefore, the second
The connector 164 of the external extension device can be connected to the terminal portion 129b without opening the cover member 143 of FIG.

As shown in FIGS. 5 and 18, a card insertion slot 170 connected to the third card slot 131 is opened on the left side surface of the rear half of the housing 4. Card slot 170
Has a long hole shape extending in the front-rear direction of the housing 4, and is formed on the peripheral wall 6 b of the top cover 6.

A cover plate 171 for opening and closing the card insertion slot 170 is attached to the peripheral wall 6b of the top cover 6. The cover plate 171 is formed in an elongated plate shape that matches the opening shape of the card insertion slot 170, and has a pivot 172 and a locking projection 173 (only one is shown in FIGS. 17 and 18) at both front and rear ends. . The pivot 172 is connected to the card slot 170.
Are rotatably pivoted at the opening edge portion. For this reason, the cover plate 171 is pivotally mounted on the pivot 172 as a fulcrum.
The card 70 is pivoted between a closed position where it closes 70 and an open position where it is pivoted to the left side of the housing 4 to open the card insertion slot 170.

When the cover plate 171 is rotated to the closed position, the locking projection 173 is hooked on the opening edge of the card insertion slot 170, and holds the cover plate 171 at the closed position. At the same time, when the cover plate 171 is closed,
1 is flush with the peripheral wall 6b of the top cover 6, and forms a part of the peripheral wall 6b.

As shown in FIGS. 17 and 18, a power switch 180 is arranged at the left end of the board unit 60. The power switch 180 includes an actuator 181 that can be retracted. The actuator 181 is
The shield case 62 extends through the left side surface of the shield frame 62, that is, between the peripheral wall 5 b of the bottom case 5 through the upright portion 72 of the first shield substrate 68.

An operation button 18 made of synthetic resin for turning on / off the power switch 180 is provided on the peripheral wall 5b of the bottom case 5.
2 are arranged. As shown in FIGS. 19 and 20, the operation button 182 includes a square pressing portion 183 operated by a fingertip by an operator. The pressing portion 183 is connected to the peripheral wall 5b.
The bottom case 5 is exposed on the left side surface through a through hole 184 formed in the bottom case 5.

At the front and rear ends of the pressing portion 183, a pair of stopper walls 18 facing the upright portion 72 of the first shield substrate 68 are provided.
5a and 185b are formed. These stopper walls 1
Plate-like support portions 186a, 186b extending downward are integrally formed on the side surfaces of 85a, 185b. The lower end portions of the support portions 186a and 186b are connected by an elongated plate-shaped connection portion 187.
a, 186b and the connecting portion 187 can be elastically deformed. The connecting portion 187 is located below the pressing portion 183 and is mounted on the bottom wall 5 a of the bottom case 5.

A pair of support walls 189a, 189b project from the bottom wall 5a of the bottom case 5. Support wall 18
9a and 189b are located below the through hole 184. Each of the support walls 189a and 189b has a groove 190 which is open at the upper edge thereof, and the connecting portion 187 of the operation button 182 is fitted into the groove 190. For this reason, the operation button 182 is held on the bottom wall 5a of the bottom case 5 via the connecting portion 187, and the elasticity of the portion from the connecting portion 187 to the support portions 186a, 186b causes the pressing portion 183 to move the pressing portion 183 to the peripheral wall 5b. Are held in the through hole 184 in a state parallel to the above.

As shown in FIG. 18, when the pressing portion 183 is pressed by a fingertip, the connecting portion 187 causes the supporting portions 186a, 186 to move.
6b is elastically deformed, and the pressing portion 183 is pushed into the bottom case 5. The pressing of the pressing portion 183 is performed until the stopper walls 185a and 185b contact the rising portion 72 of the first shield substrate 68, and the pressing stroke of the pressing portion 183 is regulated by the presence of the stopper walls 185a and 185b.

As shown in FIG. 19, a pressing tongue piece 191 extending upward is integrally provided on the back surface of the lower end of the pressing portion 183. The pressing tongue piece 191 can be elastically deformed in a direction in which the pressing tongue piece 191 comes into contact with or separates from the pressing portion 183, and an upper end serving as a free end thereof is in contact with the actuator 181. Therefore, when the pressing portion 183 of the operation button 182 is pressed with a fingertip, the actuator 181 is pressed via the pressing tongue piece 191 and the power switch 180 is turned on or off.

According to the power switch 180 having such a configuration, the pressing portion 183 is stroked until the stopper walls 185a and 185b contact the shield frame 62.
In this case, since the pressing tongue piece 191 that can be elastically deformed is interposed between the pressing portion 183 and the actuator 181, the stroke of the pressing portion 183 is reduced due to, for example, deformation of the stopper walls 185a and 185b. Even if it increases, the pressing tongue piece 191 elastically deforms to absorb the excessive stroke of the pressing portion 183.

Therefore, when the operation button 182 is pressed, an excessive load can be prevented from being applied to the actuator 181, and trouble such as failure or breakage of the power switch 180 can be eliminated.

As shown in FIGS. 7 and 21, a lock mechanism 200 is incorporated at the left end of the front half of the bottom case 5. The lock mechanism 200 is for locking the battery pack 50 in the storage space 53 and for manually releasing the lock. The lock mechanism 200 includes a lock lever 201 which is detachably hooked to the case 51 of the battery pack 50. This lock lever 2
Reference numeral 01 is arranged between the peripheral wall 5b constituting the left side surface of the bottom case 5 and the left guide wall 52a.

As shown in FIG. 25, the lock lever 201
Is a cylindrical boss 202, an engaging piece 203 extending from the peripheral surface of the boss 202, and a pressing piece extending from the peripheral surface of the boss 202 to the opposite side of the engaging piece 203. 204
And The boss 202 is rotatably supported by a pivot 205 projecting from the bottom wall 5 a of the bottom case 5, whereby the engagement piece 203 and the pressing piece 204 rotate in opposite directions about the pivot 205. It is supposed to.

As shown in FIG. 7, the left guide wall 52a
Has a notch 207 that opens into the storage space 53. The notch 207 is provided at a position corresponding to the engaging piece 203 of the lock lever 201, and the engaging piece 203 and the side surface of the case 51 face each other through the notch 207. An engagement recess 208 is formed on a side surface of the case 51. The engagement recess 208 is located in the notch 207 when the battery pack 50 is completely inserted into the storage space 53, and the engagement piece 2
03 is opposed to the engagement protrusion 209 at the tip.

Therefore, the lock lever 201 has a lock position (shown in FIG. 21) where the engagement protrusion 209 of the engagement piece 203 is hooked on the engagement recess 208 of the battery pack 50 through the notch 207. The engagement protrusion 209 is rotatable over a lock release position (shown in FIG. 22B) where the engagement protrusion 209 is disengaged from the engagement recess 208 of the battery pack 50. When the lock lever 201 is rotated to the lock position, the pressing piece 2 of the lock lever 201
04 is held at a position closer to the left side surface of the bottom case 5 than the guide wall 52a. When the lock lever 201 is turned to the unlock position, the tip of the pressing piece 204 of the lock lever 201 is held at a position closer to the guide wall 52a than the left side surface of the bottom case 5.

As shown in FIGS. 21 and 22, a torsion coil spring 210 as a first spring is disposed behind the lock lever 201. The torsion coil spring 210 includes a coil portion 210a supported on a support 211 on the bottom wall 5a, and a pair of arms 210b and 210c connected to the coil portion 210a. The tip of one arm 210b is locked to the bottom case 5, and the tip of the other arm 210c is
03. For this reason, the lock lever 201
Is always urged clockwise so that the engagement piece 203 faces the notch 207, whereby the lock lever 201 is held at the lock position, and the engagement of the engagement piece 203 is performed. The projection 209 projects into the storage space 53.

Therefore, when the battery pack 50 is completely inserted into the storage space 53, the engagement projections 209 are fitted into the engagement recesses 208 of the case 51, and the battery pack 50 is thereby fitted into the storage space 53. Is retained.

A window 213 is formed on the left side of the bottom case 53 for inserting a fingertip when the battery pack 50 is unlocked. The window 213 is located on the side of the pressing piece 204 of the lock lever 201. Therefore, when the fingertip is inserted into the window 213 as shown in FIG. 22B and the pressing piece 204 is pressed with the fingertip, the lock lever 201 is turned counterclockwise against the urging force of the torsion coil spring 210. To rotate. As a result, the lock lever 201 rotates from the lock position to the unlock position, and the engagement protrusion 209 is disengaged from the engagement recess 208 of the battery pack 50. Therefore, the lock of the battery pack 50 is released.

The lock mechanism 200 has a shutter 215 for opening and closing the window 213. Shutter 215
Is disposed between the left guide wall 52a and the peripheral wall 5b of the bottom case 5 immediately before the lock lever 201. As shown in FIGS. 24 and 25, the shutter 215 includes a side wall 216 extending along the inner surface of the peripheral wall 5b, an upper wall 217 extending horizontally from the upper edge of the side wall 216 toward the guide wall 52a, and It has a front wall 218 connected to the front edge of the wall 217 and the side wall 216.

The lower edge of the side wall 216 is slidably fitted in a front-rear guide groove 220 formed in the bottom wall 5a, and the upper wall 217 and the front wall 218.
Is slidably in contact with the guide wall 52a. For this reason, the shutter 215 is connected to the window 213 and the lock lever 2.
A closing position (shown in FIG. 21) interposed between the pressing piece 204 of FIG. 01 and the opening position (shown in FIG. 21) that opens from the space between the window 213 and the pressing piece 204 to open the window 213 ( 22 (shown in FIG. 22).

A compression coil spring 222 as a second spring is interposed between the front wall portion 218 of the shutter 215 and the spring receiver 221 at the front end of the bottom case 5 in a compressed state. Therefore, the shutter 215 is constantly pressed toward the closed position.

As shown in FIG. 21, when the shutter 215 is slid to the closed position, the lock lever 201 is closed.
The pressing piece 204 enters the inside of the side wall 216 of the shutter 215 and is elastically pressed against the inner surface of the side wall 216. As shown in FIG. 22A, when the shutter 215 is slid from the closed position to the open position, the side wall 216 of the shutter 215 is separated from the side of the pressing piece 204, and the pressing piece 204 passes through the window 213. It is exposed outside.

At the same time, since the lock lever 201 is urged to rotate in the clockwise direction by the torsion coil spring 210, the lock lever 201 is further rotated by the thickness of the side wall portion 216, and the tip of the pressing piece 204 is moved to the side wall. The edge 216a of the tip of the part 216 faces each other. When the user releases the shutter 215 in this state, the shutter 215 is released.
Is constantly pressed toward the closed position by the compression coil spring 222, so that the edge 21 of the side wall portion 216
6a is caught on the tip of the pressing piece 204, and the shutter 2
15 is held in the open position against the urging force of the compression coil spring 222.

The side wall 216 of the shutter 215
Is provided with a finger hook rib 223 facing the window 213.

As shown in FIGS. 2 and 26, an additional connector 231 for connecting a trackball 230 is arranged at the right end of the front half of the bottom case 5. The trackball 230 is a kind of pointing device used for specifying a position on the screen of the liquid crystal display 21, and has a spherical operation unit 233 on the upper surface of the main body case 232 as shown in FIG. 30. Operation unit 233
Is to be rotated with the fingertips of the operator,
By this rotation, a cursor or the like on the screen is moved to an arbitrary position.

A connector 235 detachably connected to one end of the main body case 232 to the additional connector 231.
Is arranged. The connector 235 includes a connector body 236 made of a synthetic resin. Connector body 23
6 is a pair of fitting protrusions 236a and 236b, and the contact terminal 2 disposed between the fitting protrusions 236a and 236b.
37.

As shown in FIG. 26, the additional connector 231 of the bottom case 5 has a connector body 24 made of synthetic resin.
0 is provided. The connector body 240 has an elongated box shape extending in the front-rear direction of the bottom case 5, and has flange portions 241a, 241 at both ends along the longitudinal direction.
b is integrally provided. The connector body 240 is disposed along the peripheral wall 5b constituting the right side surface of the bottom case 5, and a pair of bosses 242a, 242b having flange portions 241a, 241b at both ends protruding from the bottom wall 5a are screwed on the pair of bosses 242a, 242b. Has been fixed through. The connector body 240 is located on the right side of the FDD 30 as shown in FIG.

As shown in FIG. 27, the connector body 24
0 denotes the fitting protrusions 236a, 236 of the connector 235.
b has a fitting recess 244 to which it is detachably fitted. The fitting recess 244 is opposed to the peripheral wall 5 b that forms the right side surface of the bottom case 5, and a terminal plate 245 that is in electrical contact with the contact terminal 237 of the connector 235 is disposed on the terminal surface of the fitting recess 244. ing. The terminal plate 245 is
It is electrically connected to the board unit 60 via a flexible connection board 246. Connector body 24
The fitting recess 244 and the terminal plate 245 are exposed to the outside through an elongated connector outlet 248 opened on the right side of the bottom case 5.

As shown in FIG. 26, the connector body 24
A metal conductive plate 250 is integrally molded with the conductive plate 250. The conductive plate 250 has a first exposed portion in the fitting concave portion 244.
Exposed portion 251 and a second exposed portion 2 that is continuously exposed to the first exposed portion 251 and is exposed to the rear surface of the connector body 240.
52. As shown in FIG. 27, the first exposed portions 251 extend closer to the opening ends of the fitting recesses 244 than the terminal plates 245, and are located on both upper and lower sides of the terminal plates 245.

As shown in FIG. 26, the second exposed portion 252
Is provided integrally with a pair of ground terminal portions 255a and 255b. In the case of the present embodiment, one of the ground terminals 255
As shown in FIG. 28, a is overlapped on the lower surface of the front flange portion 241a of the connector body 240, and the other ground terminal portion 255b is overlapped on the upper surface of the rear flange portion 241b.

The one ground terminal 255a and the boss 24
An earth metal fitting 256 is interposed between the ground metal 2a and the ground metal 2a.
The earth metal fitting 256 is connected to the boss 242 through the screw 243.
a. The ground metal fitting 256 integrally has a conductive piece 257 that is superimposed on the tongue piece 36b of the adjacent FDD 30. The conductive piece 257 is attached to the tongue piece 36.
b through a screw 258.
The shield plate 105 is superimposed on 57. From this, the conductive plate 250 of the connector body 240 is
Via the ground terminal 255a and the ground metal fitting 256
It is electrically connected to the casing 31 of the FDD 30 and the shield plate 105.

In such a configuration, when the connector 235 of the trackball 230 is connected to the additional connector 231, a discharge may occur between the contact terminal 237 and the terminal plate 245 due to the charged static electricity.

However, the additional connector 231 has the conductive plate 250 which is integrally molded.
Has a first exposed portion 251 extending to the opening end side of the fitting concave portion 244 beyond the terminal plate 245. For this reason,
When the connector is connected, the first exposed portion 251 comes closer to the contact terminal 237 before the terminal plate 245, and a discharge occurs between the first exposed portion 251 and the contact terminal 237. Since the conductive plate 250 is electrically connected to the casing 31 of the FDD 30 via the earth metal fitting 256, static electricity can be released to the casing 31 of the FDD 30 and the shield plate 105 from the casing 31.

As shown in FIGS. 27 to 29, a shutter plate 260 for opening and closing the connector outlet 248 is attached to the bottom case 5. Shutter plate 260
Has a rectangular plate shape that matches the opening shape of the connector outlet 248. This shutter plate 260
A closing position for closing the connector outlet 248 along the peripheral wall 5b constituting the right side surface of the bottom case 5,
The connector outlet 248 is opened to open the connector body 24
It is slid back and forth over an open position exposing the 0 fitting recess 244.

As shown in FIGS. 26 and 29, the shutter plate 2 is disposed between the bottom wall 5a of the bottom case 5 and the peripheral wall 5b.
A guide wall 261 that slidably sandwiches 60 is provided upright. The guide wall 261 is located behind the connector body 240, and the peripheral wall 5 of the connector body 240
A flat wall portion 262 that is continuous with the guide wall 261 is formed at an end portion facing b. The wall portion 262 holds the shutter plate 260 with the peripheral wall 5b when the shutter plate 260 is slid to the closed position. Therefore,
The extension connector 231 of this embodiment is provided with the shutter plate 26.
It also functions as a guide wall for guiding the zero slide.

The shutter plate 260 has a finger hook 263 facing the connector outlet 248.

In the personal computer 1 having such a configuration, the battery pack 50 is inserted into the storage space 53 from the battery insertion opening 54 on the front surface of the bottom case 5. Then, when the side surface of the case 51 of the battery pack 50 reaches the notch 207, the engagement protrusion 209 of the lock lever 201 rotated to the lock position comes into contact with the side surface of the case 51. This contact causes the lock lever 2
01 rotates counterclockwise to allow the battery pack 50 to be inserted.

The battery pack 50 is connected to the stoppers 56a, 5a.
When it is inserted into the storage space 53 until it comes into contact with 6b,
The engaging recess 208 of the case 51 and the engaging protrusion 209 of the lock lever 201 face each other.
08 elastically. Therefore, the battery pack 50
Is locked in the storage space 53 so that it cannot be pulled out.

To release the lock of the battery pack 50, first insert a fingertip into the window 213 and hook the fingertip on the rib 223 of the shutter 215. Then, the shutter 215 is slid from the closed position to the open position against the urging force of the compression coil spring 222.

At this time, the lock lever 201 is rotationally urged toward the lock position by the torsion coil spring 210, and the tip of the pressing piece 204 of the lock lever 201 contacts the inner surface of the side wall 216 of the shutter 215. Therefore, when the shutter 215 reaches the open position, the inner surface of the side wall 216 separates from the tip of the pressing piece 204.
Due to this detachment, the lock lever 201 further rotates by the thickness of the side wall 216, and the tip of the pressing piece 204 faces the edge 216 a of the side wall 216.

Since the shutter 215 is pressed toward the closed position by the compression coil spring 222,
When you release your hand from the shutter 215, the shutter 21
5, the edge 216a of the side wall 216 is hooked on the pressing piece 204, and the shutter 215 is held at the open position.

As a result, the window 213 is opened, and the lock lever 201 is opened through the window 213.
Of the lock lever 201 is exposed.
Is pressed with a fingertip. Then, the lock lever 201 rotates counterclockwise from the locked position to the unlocked position against the torsion coil spring 210, and the engagement projection 209 of the lock lever 201 engages with the engagement recess 208 of the battery pack 50. Break away from

As long as the pressing piece 204 is pressed with a fingertip, the lock of the battery pack 50 is maintained in an unlocked state. This battery pack 50
From the storage space 53.

When the pressing piece 204 is pressed with a fingertip,
The tip of the pressing piece 204 is the edge 216 of the side wall 216.
Since the shutter 215 is released from the position a, the holding of the shutter 215 is simultaneously released. Therefore, when the fingertip is pulled out of the window 213 and the pressing of the pressing piece 204 is released, the shutter 215 is released.
Is forcibly slid from the open position to the closed position by the compression coil spring 222, and the window 213 is automatically closed by the shutter 215.

According to the lock mechanism 200 having such a configuration, when the shutter 215 is slid from the closed position to the open position, the shutter 215
01 is held in the open position by engagement with the pressing piece 204. Therefore, when pressing the pressing piece 204 of the lock lever 201 with a fingertip, it is not necessary to hold the shutter 215 so as not to move. Therefore, operability of the lock lever 201 can be favorably maintained despite the provision of the shutter 215 that covers the lock lever 201.

Further, the pressing piece 20 of the lock lever 201
4 and the battery pack 50 is unlocked, the pressing piece 204 and the side wall 21 of the shutter 215 are released.
6 is disengaged. Therefore, when the fingertip is pulled out from the window 213, the shutter 215 slides from the open position to the closed position, and the window 213 is automatically closed.

Therefore, forgetting to close the window 213 can be reliably prevented, and erroneous operation of the lock lever 201 can be eliminated.

The present invention is not limited to the above embodiment, but can be variously modified within the scope of the present invention.

For example, the storage components housed in the housing are not limited to the battery pack, but may be an extension device such as a modem unit or a hard disk drive unitized as one module.

Further, the present invention is not limited to a book-type personal computer, but can be similarly applied to other electronic devices such as a word processor.

[0126]

According to the present invention described in detail above, it is possible to prevent the user from forgetting to close the window of the housing beforehand and to eliminate the erroneous operation of the lock lever.

[Brief description of the drawings]

FIG. 1 is an exemplary exploded perspective view showing a housing of a base unit of a personal computer according to an embodiment of the present invention.

[Figure 2] Board unit, FDD and HDD in the bottom case
FIG. 2 is a perspective view showing a state in which such functional components are incorporated.

FIG. 3 is a sectional view of a base unit showing a positional relationship between a shield plate, a board unit, and an HDD.

FIG. 4 is an exemplary perspective view of the personal computer with a display unit opened;

FIG. 5 is an exemplary perspective view of the personal computer with a display unit closed;

FIG. 6 is an exploded perspective view showing a connection portion between a display unit and a base unit.

FIG. 7 is a perspective view showing a storage space of a bottom case.

FIG. 8A is a cross-sectional view illustrating a state where a battery pack is mounted in a storage space. (B) is sectional drawing which follows the AA line of FIG.

FIG. 9 is a perspective view showing a state in which circuit boards are fixed to a pair of shield boards, respectively.

FIG. 10 is a perspective view of a first shield substrate.

FIG. 11 is an exemplary plan view showing the first to fifth circuit boards in an unfolded state;

FIG. 12 is a perspective view of a shield plate and a liquid crystal display supported by a concave portion of the shield plate.

FIG. 13 is an enlarged cross-sectional view showing a mounting portion of a liquid crystal display.

FIG. 14 is a cross-sectional view of first and second card slots in a housing and a cover that opens and closes these slots.

FIG. 15 is an exemplary exploded perspective view showing a cover for opening and closing a card slot;

FIG. 16 is a right side view of the personal computer.

FIG. 17 is a sectional view of an operation button for opening and closing a third card slot and a power switch.

FIG. 18 is a sectional view showing a state where the operation button is pressed.

FIG. 19 is a perspective view showing a structure for attaching operation buttons to the bottom case.

FIG. 20 is a perspective view of an operation button.

FIG. 21 is a sectional view showing a lock mechanism of the battery pack.

FIG. 22A is a cross-sectional view illustrating a state in which a shutter is opened to expose a lock lever of a lock mechanism. (B)
FIG. 4 is a cross-sectional view of a state where a lock lever of a lock mechanism is pressed with a fingertip to unlock a battery pack.

FIG. 23 is a sectional view showing a positional relationship between a shutter and a lock lever.

24 is a sectional view taken along the line BB of FIG.

FIG. 25 is a perspective view showing a positional relationship between a shutter and a lock lever.

FIG. 26 is a perspective view showing a mounting structure of an extension connector to which a trackball is connected.

FIG. 27 is a perspective view showing a state where the extension connector is attached to the bottom case.

FIG. 28 is a cross-sectional view showing an attachment structure and an earth structure of the extension connector.

FIG. 29 is a plan view showing a state where the extension connector is incorporated in the bottom case.

FIG. 30 is a perspective view of a trackball.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 4 ... Case 5b ... Peripheral wall 50 ... Storage parts 53 ... Storage space 200 ... Lock mechanism 201 ... Lock lever 202 ... Boss part 203 ... Engagement piece 204 ... Pressing piece 210 ... First spring (torsion coil spring) 213 ... Window Part 215 ... Shutter 216a ... Edge 222 ... Second thru-ring (compression coil spring)

Claims (4)

(57) [Claims] A housing having a peripheral wall with an open window and a storage space; a storage component removably stored in the storage space of the housing; and a lock mechanism for locking the storage component to the storage space. The lock mechanism comprises: an engagement piece detachably engaged with the storage component; and a pressing piece facing the window, wherein the engagement piece engages with the storage component. A lock position supported by the housing so as to be rotatable over a lock position where the engagement piece is disengaged from the storage component, and a lock lever that is urged toward the lock position. A first spring, which is movable between a closed position for closing the window portion and an open position for opening the window portion to expose the pressing piece of the lock lever, and when moved to the open position. ,Up An electronic device, comprising: a shutter having an edge on which the pressing piece is hooked; and a second spring for urging the shutter toward a normally closed position. 2. A housing having a peripheral wall with an open window and a storage space, a storage component removably stored in the storage space of the housing, and a lock mechanism for locking the storage component to the storage space. The lock mechanism comprises: an engagement piece detachably hooked on the storage component; and a pressing piece facing the window, and a lock position where the engagement piece is hooked on the storage component. A lock lever rotatably supported by the housing over a lock release position where the engagement piece is disengaged from the storage component; and a first spring for urging the lock lever toward the lock position. A shutter movable between a closed position for closing the window, an open position for opening the window and exposing the pressing piece of the lock lever; and An electronic apparatus comprising Flip a second spring for urging the position. 3. The method according to claim 1, wherein
The electronic device according to claim 1, wherein the lock lever has a pivot point serving as a rotation center thereof, and the pressing piece is located on an opposite side of the engagement piece with the pivot point interposed therebetween. . 4. A housing having a window, a pressing portion housed in the housing and facing the window, a closing position for closing the window, and opening the window to expose the pressing portion. An electronic device, comprising: a shutter supported by the housing so as to be movable over an open position; and a spring that constantly biases the shutter toward a closed position.