JP3788991B2 - Information processing device - Google Patents

Description

  The present invention relates to an information processing apparatus such as a book-type portable computer.

  A portable information processing apparatus such as a book-type or notebook-type computer is advantageous in that it is easy to carry and can be used freely even when away from home where a commercial power source cannot be obtained.

  This type of information processing apparatus includes a housing that houses a circuit board and a keyboard device that is supported by the housing. The housing includes a keyboard mounting portion for mounting the keyboard device, and conductive plating is applied to the inner surface of the keyboard mounting portion and the housing as a countermeasure against electromagnetic interference. The keyboard device is located above the circuit board, and its back surface is covered with a reinforcing plate. The reinforcing plate comes into contact with the plating layer covering the keyboard mounting portion when the keyboard device is mounted on the keyboard mounting portion.

  However, according to the conventional configuration, since the shield plate of the keyboard device is merely in contact with the plating layer of the housing, there is a problem that the contact state between the shield plate and the plating layer becomes unstable.

  For this reason, electrical continuity between the shield plate and the housing may be hindered, and high-frequency noise emitted from the circuit board cannot be sealed inside the housing.

  An object of the present invention is to obtain an information processing apparatus in which electrical conduction between a casing and a shield plate is ensured and high-frequency noise emitted from a circuit board can be prevented from leaking outside the casing.

In order to achieve the above object, an information processing apparatus according to one aspect of the present invention provides:
A conductive housing that houses a circuit board and has a bottom case and a top cover;
A keyboard mounting portion provided on the top cover of the housing;
A keyboard device that is detachably installed on the keyboard mounting portion and has a shield plate on the back surface;
A conductive plate provided between the keyboard mounting portion and the keyboard device and electrically connected to the housing;
The shield plate of the keyboard device contacts the conductive plate when the keyboard device is installed on the keyboard mounting portion, and is electrically connected to the casing through the conductive plate.

  According to the present invention, electrical continuity between the shield plate and the housing is improved. As a result, high-frequency noise emitted from the circuit board during the operation of the information processing apparatus can be sealed inside the housing, and electromagnetic wave interference due to leakage of high-frequency noise can be prevented.

    The present invention will be described below based on an embodiment shown in FIGS.

  FIG. 1 shows a B5 size book-type portable computer 1. The computer 1 includes a base unit 2. A casing 3 that is an outline of the base unit 2 has a flat box shape. The housing 3 is divided into a bottom case 4 and a top cover 5 that is detachably covered on the bottom case 4. The bottom case 4 and the top cover 5 are made of a synthetic resin material such as ABS resin.

  The bottom case 4 includes a flat bottom surface 4a having a rectangular shape, a front surface 4b, a rear surface 4c, and left and right side surfaces 4d and 4e connected to the bottom surface 4a. The top cover 5 has a substantially flat plate shape with an upper surface 5a facing the bottom surface 4a, and the front, rear, left and right side edges of the upper surface 5a are the front surface 4b, the rear surface 4c and the left and right side surfaces of the bottom case 4. It is connected to 4d and 4e, respectively. A pair of left and right display support portions 5b and 5c are arranged at the rear end portion of the upper surface 5a of the top cover 5. The display support portions 5b and 5c protrude upward from the upper surface 5a at both left and right end portions of the upper surface 5a.

  The inner surfaces of the bottom case 4 and the top cover 5 are subjected to conductive plating as a countermeasure against electromagnetic interference.

  The top surface 5a of the top cover 5 has a front half and a rear half. The front half of the upper surface 5a forms a flat palm rest 6, and a keyboard mounting opening 7 is opened in the rear half of the upper surface 5a. The keyboard mounting opening 7 has a size over substantially the entire rear half. As shown in FIGS. 2 and 3, flange portions 7 a to 7 c that extend downward are integrally formed on the opening rear edge and the opening side edge of the keyboard mounting opening 7.

  The flange portion 7a positioned at the rear edge of the keyboard mounting opening 7 has a plurality of notches 8a as second engaging portions opened at the lower edge of the flange portion 7a, and a tension in the keyboard mounting port 7. A plurality of support pieces 8b are formed. The notches 8a are arranged at intervals in the left-right direction of the keyboard mounting opening 7, and support pieces 8b are arranged between these notches 8a.

  As shown in FIGS. 2, 3, and 11, a keyboard support portion 9 is formed at the opening front edge of the keyboard mounting opening 7. The keyboard support portion 9 extends in the left-right direction, and both left and right ends thereof are connected to the flange portions 7b and 7c. The keyboard support portion 9 is disposed at a position that is one step lower than the upper surface 5 a of the top cover 5.

  Moreover, the keyboard support part 9 has the upper surface 9a which faces the keyboard mounting opening 7, and the support surface 9b which continues to this upper surface 9a. The upper surface 9 a of the keyboard support portion 9 is positioned below the upper surface 5 a of the top cover 5. A mounting recess 10 as a second mounting portion is integrally formed at the left and right ends and the center of the upper surface 9a, and a metal nut 11 is embedded in the bottom surface of each mounting recess 10.

  The support surface 9 b of the keyboard support portion 9 extends downward from the rear edge of the upper surface 9 a and faces the keyboard mounting opening 7. A plurality of support pieces 12 are arranged on the support surface 9b at intervals in the left-right direction, and these support pieces 12 protrude into the keyboard mounting opening 7.

  As shown in FIGS. 2 and 5, the housing 3 includes a battery housing portion 13. The battery housing part 13 extends in the left-right direction below the palm rest 6. As shown in FIG. 6, the battery housing portion 13 is configured by a recess that opens continuously to the bottom surface 4 a, the front surface 4 b, and the right side surface 4 e of the bottom case 4. The battery housing portion 13 includes a standing surface 13a that extends in the left-right direction continuously to the bottom surface 4a, an end surface 13b that is positioned at the left end of the standing surface 13a, and a ceiling surface 13c that continues to the standing surface 13a and the end surface 13b. It is determined by. And the standing surface 13a, the end surface 13b, and the ceiling surface 13c partition between the battery accommodating part 13 and the inside of the housing | casing 3, and the connector outlet 14 is opened by the end surface 13b.

  As shown in FIGS. 3 and 10, a plurality of boss portions 18 are erected on the bottom surface 4 a of the bottom case 4. These boss portions 18 are distributed and disposed in each portion on the bottom surface 4a, and have an opening portion 18a that opens toward the bottom of the bottom surface 4a. The openings 18a of these boss portions 18 also serve as screw insertion holes, and two of them are located on the left and right sides of the rear end of the bottom surface 4a as shown in FIG.

  As representatively shown in FIG. 11, the top cover 5 has a plurality of screw receiving portions 19 extending downward. The screw receiving portion 19 faces a part of the boss portion 18 when the top cover 5 is put on the bottom case 4. A metal nut 20 is embedded in these screw receiving portions 19, and the nut 20 is exposed at the lower end surface of the screw receiving portion 19. The top cover 5 has its peripheral edge hooked on the upper edge of the bottom case 4, and a screw 21 is inserted into a part of the plurality of bosses 18 from below, and the screw 21 is screwed into the nut 20. Thus, it is coupled to the bottom case 4.

  As shown in FIGS. 7 to 9, first to third circuit boards 24 to 26 are accommodated in the bottom case 4. The first circuit board 24 is a system board and is located behind the battery housing portion 13. The first circuit board 24 has a plurality of peripheral portions that are fastened to the boss portion 18 on the bottom surface 4 a via screws 21 and are positioned below the keyboard mounting opening 7. The peripheral edge portion of the first circuit board 24 is adjacent to the upright surface 13a of the battery housing portion 13, the right side surface 4e and the rear surface 4c of the bottom case 4. A first relay connector 27 is disposed on the upper surface of the first circuit board 24, and the first relay connector 27 extends along the standing surface 13a at a position adjacent to the standing surface 13a. It is arranged with a proper posture.

  The second circuit board 25 is a power supply board, and is located between the left side surface 4 d and the end surface 13 b of the battery housing portion 13 in the bottom case 4. The second circuit board 25 includes an extension plate portion 28 that extends to the right along the upright surface 13a of the battery housing portion 13, and a plurality of locations including the extension plate portion 28 are formed on the boss portion 18 on the bottom surface 4a. It is fixed via a screw 21.

  A second relay connector 29 is disposed on the upper surface of the extension plate portion 28. The 2nd relay connector 29 is arrange | positioned with the attitude | position which follows this standing surface 13a in the position adjacent to the standing surface 13a. For this reason, the 1st relay connector 27 and the 2nd relay connector 29 are arrange | positioned along with right and left in the position adjacent to the standing surface 13a.

  As shown in FIG. 9, the extension plate portion 28 of the second circuit board 25 enters between the first circuit board 24 and the bottom surface 4a at a position adjacent to the upright surface 13a. Therefore, a part of the first circuit board 24 and the second circuit board 25 are arranged so as to overlap each other, and an IC chip is formed on both surfaces of the first and second circuit boards 24 and 25. A large number of circuit components 30 such as capacitors are mounted.

  If the two circuit boards 24 and 25 are arranged in such a manner as described above, the mounted circuit components 30 can be arranged three-dimensionally, and a large number of circuit components 30 can be placed in the bottom case 4 having a limited size. Can be arranged without difficulty.

  The third circuit board 26 is a relay board that electrically connects the first circuit board 24 and the second circuit board 25, and is placed vertically along the rising surface 13a at a position adjacent to the rising surface 13a. It is arranged with the posture. The third circuit board 26 includes third and fourth relay connectors 31 and 32 at both ends thereof. The third and fourth relay connectors 31 and 32 are fitted to the first and second relay connectors 27 and 29, respectively. By this fitting, the first circuit board 24 and the second circuit board 25 are electrically connected, and the third circuit board 26 itself is held in a vertical posture.

  Then, starting with the third circuit board 26, the connecting portion between the first relay connector 27 and the third relay connector 31 and the connecting portion between the second relay connector 29 and the fourth relay connector 32 are: It is located below the keyboard support portion 9 and detached from the keyboard mounting opening 7.

  As shown in FIG. 8, the first and second circuit boards 24 and 25 have a plurality of conductive portions 33 that come into contact with the boss portion 18. The conductive portion 33 is connected to a ground wiring pattern (not shown) printed on the first and second circuit boards 24 and 25, and these circuit boards 24 and 25 are screwed to the bottom case 4. As a result, the conductive portion 33 comes into contact with the plating layer on the inner surface of the bottom case 4.

  Therefore, the bottom case 4 and the first and second circuit boards 24 and 25 are electrically connected to each other by the contact between the conductive portion 33 and the plating layer.

  As shown in FIG. 8, a power connector 36 is attached to the second circuit board 25. The power connector 36 faces the connector outlet 14 of the bottom case 4, and the power connector 36 includes a plurality of contact terminals 35 exposed to the battery housing portion 13. These contact terminals 35 can be elastically deformed in a direction projecting and retracting into the battery housing portion 13, and are always projected into the battery housing portion 13.

  As shown in FIG. 7, on the upper surface of the first circuit board 24, a card accommodating portion 38 for accommodating a memory card or an interface card is formed. The card accommodating portion 38 is disposed immediately after the battery accommodating portion 13 and at a position adjacent to the right side surface 4 e of the bottom case 4. The card accommodating portion 38 includes a pair of guide rails 39a and 39b that hold the card and guide the insertion and removal of the card. The guide rails 39a and 39b extend in the left-right direction of the bottom case 4 in parallel with each other. One end of the guide rails 39a and 39b is adjacent to the right side surface 4e of the bottom case 4, and a card connector 40 to which the card is detachably connected is disposed between the other ends of the guide rails 39a and 39b. Yes.

  The card accommodating part 38 is provided with an ejector for taking out the card. The ejector has the same configuration as that conventionally known, and has an eject button 42 supported by one guide rail 39a, and an engaging claw (not shown) that is interlocked with the eject button 42 and hooked to the insertion tip of the card. And an eject plate 43. The eject button 42 is arranged next to one end of the guide rail 39 a and is adjacent to the right side surface 4 e of the bottom case 4.

  An FDD connector 41 for connecting an external floppy disk drive is disposed on the upper surface of the first circuit board 24. The FDD connector 41 is adjacent to the right side surface 4 e of the bottom case 4 behind the card housing portion 38.

  As shown in FIGS. 2 and 7, a 2.5-inch hard disk drive 44 is accommodated in the bottom case 4. The hard disk drive 44 is disposed at a corner defined by the rear surface 4 c and the left side surface 4 d of the bottom case 4, and is adjacent to the first and second circuit boards 24 and 25 in the bottom case 4. The hard disk drive 44 is connected to the first circuit board 24 via a flexible wiring board 45.

  As shown in FIG. 7, the right side surface 4 e of the bottom case 4 has a card insertion port 46 connected to the card housing portion 38 and a connector lead-out port 47 through which the FDD connector 41 is exposed side by side. One end of the guide rails 39 a and 39 b and the eject button 42 face the card insertion slot 46, and the card insertion slot 46 is opened and closed by a side cover 48. The side cover 48 is supported by the right side surface 4e of the bottom case 4 and spans a closed position that covers the card insertion slot 46 and an open position that falls to the right side of the bottom case 4 and opens the card insertion slot 46. To be rotated. When the side cover 48 is turned to the closed position, the side cover 48 stands along the right side surface 4e of the bottom case 4 and constitutes a part of the right side surface 4e.

  As shown in FIGS. 12 and 13, a first connector cover 50 that opens and closes the connector outlet 47 is supported on the right side surface 4 e of the bottom case 4. The first connector cover 50 has shaft portions 51 on both sides at the lower end thereof, and the shaft portions 51 are pivotally supported by the opening side edge portion of the connector outlet 47. For this reason, the first connector cover 50 rotates between the closed position where the connector outlet 47 is closed with the shaft portion 51 as a fulcrum, and the open position where the first connector cover 50 falls to the right side of the bottom case 4 and opens the connector outlet 47. It has come to be. When the first connector cover 50 is rotated to the closed position, the first connector cover 50 stands along the right side surface 4e of the bottom case 4 and constitutes a part of the right side surface 4e. .

  On the inner surface of the lower end portion of the first connector cover 50, a spring receiving portion 52 is projected. The spring receiving portion 52 enters the inside of the connector outlet 47 when the first connector cover 50 is rotated to the closed position. A part 53 is arranged. The spring support portion 53 is formed integrally with the bottom case 4 and has an opening 53 a in a portion from the side surface facing the first connector cover 50 to the lower surface. The spring receiving portion 52 is inserted into the opening 53a when the first connector cover 50 is rotated to a certain angle toward the closed position.

  A return spring 55 that holds the first connector cover 50 forcibly rotating toward the closed position is held inside the spring support portion 53. As shown in FIG. 13, the return spring 55 is formed by bending a metal plate, and integrally includes a bent portion 56 that is bent so as to protrude downward at one end thereof. The bent portion 56 is positioned at the upper edge of the opening 53a, and when the spring receiving portion 52 enters the opening 53a as the first connector cover 50 is rotated in the closing direction, the spring receiving portion. The upper end of 52 is pressed from above.

  The pressure contact position of the bent portion 56 with respect to the spring receiving portion 52 enters the inside of the connector outlet 47 with respect to the shaft portion 51, whereby the first connector cover 50 is directed upward with the shaft portion 51 as a fulcrum. A pressing force is applied to rotate the lens. Due to the presence of this pressing force, the first connector cover 50 is forcibly rotated toward the closed position and held at the closed position as shown by the arrow in FIG.

  When the first connector cover 50 is rotated from the closed position toward the open position, the spring receiving portion 52 is bent at the bending portion 56 when the angle of rotation of the connector cover 50 toward the side reaches a certain value. Leave. When the spring receiving portion 52 is detached from the bent portion 56, the pressing force for turning the first connector cover 50 in the closing direction disappears, so that the first connector cover 50 can be turned to the open position. it can.

  Since the first connector cover 50 is held in the closed position by the pressing force of the return spring 55, it is not necessary to provide the first connector cover 50 with a claw that can be detachably locked to the bottom case 4. Therefore, even when the opening and closing of the first connector cover 50 is repeated, there is no problem that the claws are damaged, and the problem that the first connector cover 50 cannot be held in the closed position due to the damage is solved. it can.

  Further, when the spring receiving portion 52 is caught by the bent portion 56 of the return spring 55, the first connector cover 50 is automatically rotated toward the closed position by the pressing force of the return spring 55. It is not necessary to completely push the one connector cover 50 to the closed position. Therefore, the operability when opening and closing the first connector cover 50 is improved together with the fact that the claws are not damaged as described above.

  As shown in FIG. 14, a second connector outlet 68 is opened on the rear surface 4 c which is the rear end wall of the bottom case 4. The second connector outlet 68 has a horizontally long opening extending in the left-right direction of the bottom case 4, and the rear end of the first circuit board 24 is adjacent to the second connector outlet 68.

  At the rear end of the first circuit board 24, for example, a connection port 61 for connecting an external device having an RS232C standard interface, a parallel port 62 for connecting a printer, and the function of the computer 1 are expanded. The expansion connectors 63 used for the mounting are arranged in a line in the left-right direction. The expansion connector 63 has positioning holes 63a and 63b on the left and right sides thereof.

  A metal connector panel 64 that supports the connection port 61, the parallel port 62, and the expansion connector 63 is attached to the rear end portion of the first circuit board 24. The connector panel 64 is arranged in an upright posture with respect to the first circuit board 24, and covers the connection part between the circuit board 24, the connection port 61, the parallel port 62, and the expansion connector 63 from the rear. As shown in FIG. 14, the connection port 61, the parallel port 62, and the extension connector 63 are exposed to the rear of the housing 3 through the second connector outlet 68.

  The bottom case 4 supports a second connector cover 69 that opens and closes the second connector outlet 68. The second connector cover 69 has a closed position for closing the second connector outlet 68, an open position for opening the second connector outlet 68, and a space between the bottom surface 4 a of the bottom case 4 and the first circuit board 24. It can be selectively moved over the accommodation position.

  The support structure of the second connector cover 69 will be described. As shown in FIG. 17, the connector panel 64 is extended at the lower end thereof so as to enter the lower side of the first circuit board 24. Is integrated. The extension portion 70 is parallel to the bottom surface 4a of the bottom case 4, and a cover housing portion 71 into which the second connector cover 69 enters is formed between the bottom surface of the extension portion 70 and the bottom surface 4a. In a state where the second connector cover 69 is inserted into the cover housing portion 71, the connector cover 69 is squeezed between the bottom surface 4a and the extension portion 70, and rattling of the connector cover 69 is prevented. It has become so.

  As shown in FIG. 18, the bottom surface 4 a of the bottom case 4 has a pair of side walls 72 a and 72 b positioned on the left and right sides of the cover housing portion 71, and a front wall 72 c positioned at the front end of the cover housing portion 71. Is erected. Each of these walls 72 a to 72 c partitions the cover housing portion 71 inside the bottom case 4, and the rear end portions of the side walls 72 a and 72 b are connected to the opening side edge portion of the second connector outlet 68. .

  Guide grooves 73 extending in the front-rear direction are formed at the ends of the side walls 72a, 72b on the second connector outlet 68 side. The rear end of the guide groove 73 facing the second connector lead-out port 68 is closed without being opened on the rear surface 4c of the bottom case 4, and the closed end has a bearing 73a curved in an arc shape. There is no.

  Further, shaft portions 74 a and 74 b that are slidably fitted into the guide groove 73 are provided on both ends of the second connector cover 69. When the second connector cover 69 is inserted into the cover accommodating portion 71, the shaft portions 74a and 74b are separated from the guide groove 73 and are slidably inserted between the side walls 72a and 72b. . Thus, when the second connector cover 69 is inserted into the cover housing portion 71, the connector cover 69 is prevented from tilting or rattling.

  The side walls 72a and 72b are respectively provided with stopper portions 76 that limit the insertion amount of the second connector cover 69. The stopper portion 76 protrudes into the cover housing portion 71 from the opposing surfaces of the side walls 72a and 72b, and the protruding end comes into contact with the shaft portions 74a and 74b. Due to this contact, insertion of the second connector cover 69 into the cover accommodating portion 71 is restricted, and the connector cover 69 slightly protrudes from the second connector outlet 68 at its rear edge as shown in FIG. In this state, it is held in the cover housing portion 71.

  When the second connector cover 69 held in the cover accommodating portion 71 is pulled out rearward, the shaft portions 74a and 74b enter the guide groove 73 and abut against the bearing portion 73a. Therefore, the second connector cover 69 is configured to rotate in the vertical direction to either the closed position or the open position with the contact portion between the shaft portions 74a, 74b and the bearing portion 73a as a fulcrum. When the second connector cover 69 is turned to the closed position and the second connector lead-out port 68 is closed, the connector cover 69 stands along the rear surface 4c and constitutes a part of the rear surface 4c. To do.

  Note that the second connector cover 69 includes a latch 77. When the second connector cover 69 is rotated to the closed position, the latch 77 is hooked on the rear edge of the top cover 5 to hold the second connector cover 69 in the closed position.

  In order to rotate the second connector cover 69 from the closed position to the open position, the fingertip is hooked on the upper edge, and the second connector cover 69 is pulled backward. Then, the second connector cover 69 rotates rearward with the contact portion between the shaft portions 74a, 74b and the bearing portion 73a as a fulcrum, and is substantially rearward of the bottom case 4 as shown in FIG. It falls down horizontally. When the second connector cover 69 is pushed forward in this state, the second connector cover 69 slides forward using the guide groove 73 as a guide and is inserted into the cover housing portion 71.

  As shown in FIG. 19, the computer 1 includes an RGB adapter 80 for connecting an external CRT display. The RGB adapter 80 includes a box-shaped adapter main body 81 as shown in FIG. The adapter main body 81 includes a front surface 81a and a rear surface 81b facing each other, and an upper surface 81c straddling between the both surfaces 81a and 81b. An interface connector 82 that is detachably connected to the expansion connector 63 is disposed on the front surface 81a, and an RGB connector 83 that connects an external CRT display is disposed on the rear surface 81b.

  A lock claw 84 is disposed on the front surface 81 a of the adapter main body 81. When the interface connector 82 is connected to the expansion connector 63, the lock claw 84 is detachably locked in the locking hole 85 of the connector panel 64. By this locking, the RGB adapter 80 is connected to the computer 1. Retained. The locking claw 84 is unlocked from the locking hole 85 by sliding the release lever 86 on the upper surface 81c of the adapter body 81 rearward, so that the RGB adapter 80 can be removed from the computer 1. Yes.

  As shown in FIGS. 7 and 14, a power connector 88 is disposed on the rear surface 4 c of the bottom case 4. The power connector 88 is attached to the upper surface of the first circuit board 24, and an AC adapter plug connected to a commercial power source is inserted into the power connector 88.

  As shown in FIG. 16, a pair of left and right engagement ports 90 a and 90 b are opened at the rear end portion of the bottom surface 4 a of the bottom case 4. The engagement ports 90 a and 90 b have a long hole shape extending in the front-rear direction of the bottom case 4. The engagement ports 90a and 90b are arranged separately on the left and right sides of the expansion connector 63 when the bottom case 4 is viewed from the rear.

  As shown in FIG. 47, the engagement ports 90 a and 90 b are located below the first circuit board 24. A metal terminal piece 91 is disposed at the open end of the engagement ports 90a, 90b into the bottom case 4. The terminal piece 91 is fixed to the lower surface of the terminal support portion 92 connected to the left and right ends of the extension portion 70 of the connector panel 64 by means such as spot welding, and is electrically connected to the extension portion 70 and thus the connector panel 64. .

  As shown in FIG. 1, a battery pack 100 is detachably attached to the battery housing portion 13 of the bottom case 4. The battery pack 100 is a power source for driving the computer 1 in a cordless manner and is rechargeable. The battery pack 100 includes a case 101 containing a nickel-cadmium battery (not shown). The case 101 has a shape substantially equal to that of the battery housing portion 13.

  For this reason, in the state where the battery pack 100 is mounted in the battery housing portion 13, the outer peripheral surface 101a of the case 101 is continuous with the bottom surface 4a, the front surface 4b, and the right side surface 4e of the bottom case 4, and these surfaces 4a, 4b , 4e respectively. And if the battery accommodating part 13 is continuously open | released by three surfaces of the bottom case 4 in this way, the occupation space of the battery accommodating part 13 in the bottom case 4 can be decreased, and this bottom case 4 The bottom case 4 can be made compact without sacrificing any mounting space inside.

  As shown in FIG. 22, the battery pack 100 includes a plurality of signal and power supply terminals 104 that come into contact with the contact terminals 35 on the front end face that faces the end face 13 b of the battery housing portion 13. As shown in FIG. 6, the case 101 of the battery pack 100 has an upper surface 101 b that faces the ceiling surface 13 c of the battery housing part 13. Guide convex portions 102 a and 102 b extending in the longitudinal direction of the battery pack 100 protrude from both side portions of the upper surface 101 b. Each of the guide convex portions 102 a and 102 b has a plurality of first engaging portions 103, and these first engaging portions 103 are arranged at intervals in the longitudinal direction of the battery pack 100.

  The ceiling surface 13c of the battery housing part 13 has guide concave parts 105a and 105b into which the guide convex parts 102a and 102b enter. The guide recesses 105 a and 105 b extend along the longitudinal direction of the battery housing part 13 of the battery pack 100. These guide recesses 105a and 105b have a plurality of second engagement portions 106, and these second engagement portions 106 are arranged at intervals in the longitudinal direction of the guide recesses 105a and 105b.

  The second engaging portion 106 is connected to the first engaging portion 103 when the battery pack 100 is fitted in the battery housing portion 13 and then the terminal 104 is slid in a direction to contact the contact terminal 35. The battery pack 100 is held in the battery housing part 13 by this engagement.

  On the standing surface 13 a of the battery housing portion 13, a lock piece 107 that can protrude and retract in the battery housing portion 13 is disposed. The lock piece 107 is positioned at an opening end of the battery housing portion 13 to the right side surface 4e of the bottom case 4, and the lock piece 107 is always protruded toward the battery housing portion 13 by a spring (not shown). The lock piece 107 is adapted to engage with a recess 108 formed in the case 101 when the battery pack 100 is completely attached to the battery housing portion 13, and this engagement causes the battery pack 100 to be engaged with the battery housing portion. 13 is held in place.

  As shown in FIG. 16, a release lever 109 interlocking with the lock piece 107 is disposed on the bottom surface 4 a of the bottom case 4. The release lever 109 is supported by the bottom case 4 so as to be slidable between a lock position where the lock piece 107 protrudes toward the battery housing portion 13 and a lock release position where the lock piece 107 is detached from the battery housing portion 13. Yes. For this reason, when the release lever 109 is slid to the lock position, the lock piece 107 is retracted from the battery housing portion 13 and the engagement with the recess 108 is released. Thereby, the battery pack 100 can be removed from the battery accommodating part 13.

  A lock lever 110 is disposed on the bottom surface 4a of the bottom case 4 to hold the release lever 109 in the locked position.

  Further, as shown in FIG. 7 and FIG. 21, a stopper 115 that prevents the battery pack 100 from popping out when the battery pack 100 is unlocked is disposed on the ceiling surface 13 c of the battery housing portion 13.

  The stopper 115 includes a stopper body 116 made of a synthetic resin and a spring 117 that presses the stopper body 116. The stopper main body 116 has an engaging claw 118 at one end thereof, and an end opposite to the engaging claw 118 is pivotally supported on the ceiling surface 13c via a pivot 119 so as to be vertically rotatable. . And the engaging claw 118 protrudes in the battery accommodating part 13 so that it can protrude and retract through the through-hole 120 opened in the ceiling surface 13c. For this reason, the stopper main body 116 can be rotated in the vertical direction between a first position protruding from the battery housing portion 13 and a second position retracted from the battery housing portion 13.

  Further, as shown in FIG. 22, the spring 117 is interposed between the stopper main body 116 and the upper surface 5a of the top cover 5, and urges the stopper main body 116 to rotate toward the first position. Due to this urging, the engaging claw 118 of the stopper main body 116 always protrudes from the through hole 120 into the battery accommodating portion 13.

  For this reason, as shown in FIG. 22A, when the battery pack 100 is completely mounted in the battery accommodating portion 13 and the terminal 104 of the battery pack 100 is in contact with the contact terminal 35, the engagement claw 118 faces the guide protrusion 102a on the upper surface 101b of the battery pack 100 from the side opposite to the contact terminal 35.

  When the release lever 109 is operated to release the lock of the battery pack 100 in a state where the battery pack 100 is attached to the battery housing portion 13, the contact terminal 35 is always urged in a direction that protrudes to the battery housing portion 13. Therefore, as shown in FIG. 22B, the battery pack 100 is pushed away from the contact terminal 35. Then, the first engaging portion 103 of the battery pack 100 may be disengaged from the second engaging portion 106 of the battery housing portion 13.

  However, in the above configuration, the engaging claw 118 of the stopper main body 116 always protrudes from the ceiling surface 13c of the battery accommodating portion 13 and faces the guide convex portion 102a of the battery pack 100, so that FIG. As shown, when the battery pack 100 is pushed out by the contact terminal 35, the guide protrusion 102 a is engaged with the engagement claw 118 before the engagement between the first engagement portion 103 and the second engagement portion 106 is released. Get caught in. As a result, the battery pack 100 is prevented from being pushed out, and the engagement between the first engaging portion 103 and the second engaging portion 106 is maintained. For this reason, it is possible to prevent the battery pack 100 from popping out and the battery pack 100 from being accidentally dropped off.

  In order to remove the battery pack 100 from the battery housing portion 13, the battery pack 100 is gripped with fingers and forcibly slid in a direction of being detached from the contact terminal 35. Then, as shown in FIG. 23, the engaging claw 118 rides on the guide convex portion 102a, and the stopper main body 116 is rotated upward against the spring 117. Therefore, the engaging claw 118 and the guide convex portion 102a Is disengaged. For this reason, the battery pack 100 can be pulled out in the direction in which the first engagement portion 103 is detached from the second engagement portion 106, and the battery pack 100 can be removed from the battery housing portion 13.

  Further, the stopper 115 for preventing the battery pack 100 from popping out is divided into a stopper main body 116 pivotally supported on the ceiling surface 13c and a spring 117 for pressing the stopper main body 116. Therefore, the spring 117 having a different set load is used. If several types of are prepared and an appropriate spring 117 is selected, the catching strength of the stopper main body 116 with respect to the battery pack 100 can be changed.

  For this reason, compared with the case where the stopper 115 is integrally formed in the battery housing part 13, the catching strength according to the weight of the battery pack 100 can be easily obtained. That is, when the stopper 115 is integrally formed with the battery housing portion 13, it is necessary to change the mold structure of the molding die of the top cover 5 every time the hook strength with respect to the battery pack 100 is changed. This can be dealt with by replacing the spring 117.

  In addition, when the spring 117 falls and the hook strength is reduced, only the spring 117 needs to be replaced, and the pop-out preventing function of the battery pack 100 can be favorably maintained for a long time.

  As shown in FIG. 24, the battery housing part 13 includes support legs 125 that support the ceiling surface 13 c when the battery pack 100 is taken out from the battery housing part 13. The support leg 125 has a plate-like leg main body 126, and a shaft portion (not shown) of one end of the leg main body 126 is rotatably connected to the ceiling surface 13c.

  For this reason, the leg main body 126 is rotatable over a storage position rotated so as to be parallel to the ceiling surface 13c and a use position protruding downward from the ceiling surface 13c. When the leg main body 126 is rotated to the use position, the bottom surface 4a of the bottom case 4 and the bottom surface 4a of the bottom case 4 are positioned at a position where the ground contact surface 126a at the lower end of the leg main body 126 is biased toward the right side surface 4e. They are positioned on the same plane.

  A storage recess 127 into which the leg main body 126 enters when the leg main body 126 is rotated to the closed position is formed on the ceiling surface 13c of the battery housing portion 13. As shown in FIG. 25, when the leg main body 126 is inserted into the storage recess 127, the lower surface of the leg main body 126 is continuous with the ceiling surface 13c. The storage recess 127 has a slightly larger shape than the leg main body 126, and a gap 128 is formed between the storage recess 127 and the ground contact surface 126 a at the lower end of the leg main body 126. The gap 128 is for inserting a fingertip when the leg main body 126 that has entered the storage recess 127 is caused. By hooking the fingertip on the grounding surface 126a of the leg main body 126, the leg main body 126 is used. Can be pulled out towards

  A locking piece 129 protrudes from the bottom surface of the storage recess 127 that defines the gap 128. When the leg main body 126 is rotated to the retracted position, the locking piece 129 is detachably hooked on the leg main body 126 and holds the leg main body 126 in the retracted position.

  Further, as shown in FIGS. 1 and 10, the bottom case 4 is attached with a metal plate reinforcing metal fitting 133 positioned at an opening end portion of the battery housing portion 13 to the side. The reinforcing metal fitting 133 is used to reinforce the side opening end of the battery housing portion 13 when the battery pack 100 is removed from the battery housing portion 13. Two reinforcing portions 133b. The first reinforcing portion 133a is overlapped on the upper surface of the ceiling surface 13c and extends in the width direction of the battery housing portion 13, and the second reinforcing portion 133b is overlapped on the inner surface of the standing surface 13a and extends in the vertical direction. It extends.

  A screw 134 is inserted through the overlapping portion between the first reinforcing portion 133a and the ceiling surface 13c from the battery housing portion 13 side. The insertion end of the screw 134 is screwed into a boss portion 135 on the inner surface of the palm rest 6, thereby connecting the battery accommodating portion 13 and the palm rest 6. A support piece 137 is integrally formed at the lower end of the second reinforcing portion 133b. As shown in FIG. 10, the support piece 137 is interposed between the boss portion 18 and the first circuit board 24, and is fastened together with screws 21.

  Therefore, the reinforcing metal fitting 133 has a first reinforcing portion 133 a sandwiched between the ceiling surface 13 c and the palm rest 6, and also serves to reinforce the palm rest 6 at the same time as reinforcing the battery housing portion 13.

  On the other hand, as shown in FIG. 1, the display unit 141 is supported on the display support portions 5 b and 5 c of the top cover 5. The display unit 141 includes a thin box-shaped housing 142 and a liquid crystal display 143 accommodated in the housing 142, and a display window 144 exposing the liquid crystal display 143 is opened on the front surface of the housing 142. Yes.

  The housing 142 includes a connecting portion 145 interposed between the display support portions 5b and 5c. The left and right ends of the connecting portion 145 are connected to the display support portions 5b and 5c via hinge devices (not shown).

  For this reason, the display unit 141 has a first position that covers the palm rest 6 and the keyboard mounting opening 7 of the housing 3 from above, a second position that stands behind the keyboard mounting opening 7, and the rear of the housing 3. It can be rotated within a range of about 180 ° over the third position where it falls down horizontally. As shown in FIG. 16, when the display unit 141 is rotated to the first position, the housing 142 of the display unit 141 is substantially flush with the front surface and the left and right side surfaces of the housing 3, and the computer 1 has a box shape convenient for carrying.

  As shown in FIG. 26, a cable 147 connected to the liquid crystal display 143 is routed inside the top cover 5. The cable 147 extends in the left-right direction inside the top cover 5 along the rear edge of the opening of the keyboard mounting opening 7. A cylindrical core 148 that protects the cable 147 is attached to the outer periphery of the cable 147. ing. The tip of the cable 147 is connected to a display connector 149 (shown in FIG. 2) on the upper surface of the first circuit board 24.

  As shown in FIG. 26 and FIG. 27, a rear shield plate 155 made of sheet metal as a second shield plate is attached to the inner surface of the rear end portion of the top cover 5. The rear shield plate 155 extends in the left-right direction along the opening rear edge of the keyboard mounting opening 7, and both left and right end portions thereof are screwed to metal brackets 156 that support the hinge device. The rear shield plate 155 is located above the connection port 61, the parallel port 62 and the expansion connector 63 at the rear end of the first circuit board 24, and the rear end of the rear shield plate 155 is connected to the connector panel 64. It touches the top edge.

  For this reason, the rear shield plate 155 integrally cooperates with the connector panel 64 to surround the connection portion between the first circuit board 24 and the connection port 61, the parallel port 62, and the expansion connector 63. Prevents leakage of high frequency noise from the rear.

  As shown in FIG. 27, the rear shield plate 155 integrally includes a cable guide 157 extended so as to wrap around the core 148 of the cable 147 and a conductive piece 158 facing the rear opening edge of the keyboard mounting opening 7. I have. The cable guide 157 defines the insertion position of the cable 147 by pinching the core 148 between the top surface 5 a of the top cover 5.

  If the cable guide 157 for holding the core 148 is integrally formed on the rear shield plate 155 located in the vicinity of the cable 147 in this way, a dedicated holding member for holding the core 148 and its mounting structure are not required. Thus, the number of parts can be reduced and the internal structure of the housing 3 can be simplified.

  As shown in FIG. 26, a pair of left and right keyboard support plates 161 and 162 made of metal are screwed to the inner surface of the top cover 5. The keyboard support plates 161 and 162 are arranged along the left and right opening side edges of the keyboard mounting opening 7. The right keyboard support plate 161 is integrated with the bracket 156 of the hinge device, and the rear end of the left keyboard support plate 162 is screwed to the bracket 156. For this reason, the left and right keyboard support plates 161 and 162 are electrically connected to the rear shield plate 155 via the bracket 156. A conductive plate 164 (shown in FIG. 2) having a plurality of conductive pieces 163a is disposed on the upper surface of the left keyboard support plate 162.

  As shown in FIGS. 2 to 4, a keyboard device 165 as an information input unit is detachably mounted on the keyboard mounting opening 7 from above the housing 3. The keyboard device 165 includes a keyboard body 166 made of synthetic resin. The keyboard body 166 has a flat rectangular plate shape that can be fitted into the keyboard mounting slot 7, and a large number of keys 167 and a joystick 168 that is a kind of pointing device are arranged on the upper surface of the keyboard body 166. .

  The lower surface of the keyboard body 166 is covered with a first metal shield plate 170. The first shield plate 170 is for preventing leakage of switching noise due to key operation, and has a function of reinforcing the keyboard body 166.

  On the rear edge of the keyboard body 166, a plurality of engaging pieces 171 as first engaging portions are projected. These engagement pieces 171 are arranged at intervals in the left-right direction of the keyboard body 166 so that when the keyboard device 165 is attached to the keyboard attachment opening 7, it is detachably engaged with the notch 8a. It has become.

  A plurality of attachment pieces 172 as first attachment portions project from the front edge portion of the keyboard body 166. These attachment pieces 172 are arranged at intervals in the left-right direction of the keyboard body 166, and are fitted into the attachment recesses 10 of the keyboard support portion 9 when the keyboard device 165 is attached to the keyboard attachment opening 7. It has become so. As shown in FIG. 11, a plurality of tongue pieces 173 extended so as to protrude below the attachment piece 172 are integrally formed on the front edge of the first shield plate 170. These tongue pieces 173 are superimposed on the lower surface of the attachment piece 172 and are in contact with the bottom surface of the attachment recess 10 and the nut 11.

  Such a keyboard device 165 is attached to the keyboard attachment opening 7 in the following procedure.

  That is, as shown in FIG. 4, the keyboard device 165 is inserted into the keyboard mounting opening 7 from above in an oblique posture with the rear edge of the keyboard body 166 as the head. By this insertion, the engagement piece 171 is first engaged with the notch 8a, and the front edge of the keyboard body 166 is hooked on the upper surface of the support piece 8b.

  In this state, the keyboard device 165 is rotated downward with the hook portion between the rear edge of the keyboard body 166 and the support piece 8 b as a fulcrum, and the keyboard body 166 is fitted into the keyboard mounting opening 7. By this fitting, the attachment piece 172 fits into the attachment recess 10 at the front part of the keyboard device 165, the tongue piece 173 contacts the nut 11, and the front edge part of the lower surface of the first shield plate 170 is It is supported by the support piece 12.

  Further, on the left and right sides of the keyboard device 165, the lower surface of the first shield plate 170 contacts the upper surfaces of the keyboard support plates 161 and 162 and the conduction plate 164 and is supported by the keyboard support plates 161 and 162. Similarly, at the rear end of the keyboard device 165, the lower surface of the first shield plate 170 contacts the conductive piece 158 and the support piece 8b and is supported by the support piece 8b.

  For this reason, the keyboard device 165 is supported inside the keyboard mounting opening 7 by the front, back, left, and right side edges of the keyboard body 166, and the keyboard device 165 is tilted and rattled in the keyboard mounting opening 7. Is blocked.

  When the keyboard device 165 is completely assembled into the keyboard mounting port 7 in this manner, the screw 174 is inserted into the attachment piece 172, and the insertion end of the screw 174 is screwed into the nuts 11 and 20. By this screwing, the first shield plate 170 is held in contact with the nuts 11 and 20, the keyboard support plates 161 and 162, the conduction plate 164 and the conduction piece 158, and the attachment of the keyboard device 165 to the top cover 5 is completed. To do.

  When the keyboard device 165 is completely attached, the first shield plate 170 covers the first circuit board 24 and the hard disk drive device 44 on the bottom case 4 from above.

  According to such an attachment structure of the keyboard device 165, the front edge and the rear edge of the keyboard body 166 are held by the opening edge portion of the keyboard attachment opening 7, so that the attachment position of the keyboard device 165 with respect to the keyboard attachment opening 7 is Determined with good accuracy. For this reason, the appearance of the attachment portion of the keyboard device 165 is improved, and the keyboard device 165 can be firmly fixed to the keyboard mounting opening 7.

  Moreover, since the keyboard device 165 is screwed to the top cover 5, the first shield plate 170 is pressed against the keyboard support plates 161, 162, the conductive plate 164 and the conductive piece 158 of the rear shield plate 155, and the two are in contact with each other. The state can be maintained well. For this reason, the first shield plate 170, the rear shield plate 155, and the connector panel 64 that continuously cover the first circuit board 24 from the upper side to the rear side are electrically connected to each other. The high frequency noise emitted from the first circuit board 24 can be sealed in the housing 3, and electromagnetic wave interference due to leakage of the high frequency noise can be prevented.

  In addition, in the above configuration, the tongue piece 173 that is superimposed on the lower surface of the attachment piece 172 of the keyboard body 166 is integrally formed on the front edge of the first shield plate 170, and the attachment piece 172 is attached to the keyboard support portion 9. The tongue 173 is in contact with the nut 11 when screwed into the recess 10. Since the nut 11 is electrically connected to the ground wiring pattern via the conductive portion 33 on the first circuit board 24, the keyboard device 165 is grounded using the attachment portion to the top cover 5. Can be made.

  For this reason, special lead wires and connectors for grounding the keyboard device 165 can be omitted. At the same time, since the grounding work is completed simultaneously with the fixing of the keyboard device 165, the number of work steps can be reduced and the assembly work of the computer 1 can be easily performed.

  As shown in FIG. 28, a cover 181 that covers the upper surface 9 a of the keyboard support portion 9 from above is detachably locked to the opening front edge of the keyboard mounting opening 7. The cover 181 extends in the left-right direction along the keyboard mounting opening 7 and is interposed between the palm rest 6 of the top cover 5 and the key 167 in the front row of the keyboard device 165. The upper surface of the cover 181 is continuous with the upper surface of the palm rest 6 and is a part of the palm rest 6.

  By providing such a cover 181, the screw 174 for fixing the keyboard device 165 and the fitting portion between the keyboard body 166 and the keyboard support portion 9 can be covered, and the top surface 5 a of the top cover 5 and the keyboard device 165 are covered. A sense of unity can be obtained.

  As shown in FIGS. 29 and 30, operation buttons 185 and 186 for canceling and executing commands displayed on the liquid crystal display 143 are arranged in the front and rear in the center of the palm rest 6. The operation buttons 185 and 186 have pressing portions 185a and 186a that are pressed by a fingertip. The pressing portions 185a and 186a are connected to each other by a connecting portion 187, and the pressing portions 185a and 186a and the connecting portion 187 are integrally formed of a synthetic resin material. The connecting portion 187 can be elastically deformed in the vertical direction, and the front end thereof is fixed to the lower surface of the palm rest 6 by means such as caulking. The pressing portions 185 a and 186 a are exposed on the upper surface of the palm rest 6 through through holes 188 and 189 opened in the palm rest 6.

  For this reason, when the pressing portions 185a and 186a are pressed with the fingertip, the connecting portion 187 is elastically deformed downward, and the pressing portions 185a and 186a are pushed in.

  As shown in FIG. 30, one operation button 185 positioned on the operator's hand side is thinner than the thickness of the pressing portion 186a of the other operation button 186 where the thickness of the pressing portion 185a is close. Yes. Therefore, the pressing portion 185a of one operation button 185 is disposed at a position lower than the pressing portion 186a of the other operation button 186.

  The upper surface of the palm rest 6 is recessed around the one operation button 185, and the recessed portion forms a first finger placement portion 191 for placing a fingertip. And while the press part 185a is located in the bottom face of this 1st finger rest part 191, the peripheral part of this bottom face continues to the upper surface of the palm rest 6 drawing a smooth curvature.

  Further, the upper surface of the palm rest 6 protrudes upward between the other operation button 186 and the front row key 167 of the keyboard device 165, and this protruding portion is a second finger placement for placing a fingertip. Part 192 is formed. The second finger rest portion 192 is connected to the upper surface of the palm rest 6 with a smooth curvature so that the fingertip can be easily moved in the front-rear and left-right directions.

  Since the operation buttons 185 and 186 have different heights of the pressing portions 185a and 186a exposed on the upper surface of the palm rest 6, as long as the functions of the operation buttons 185 and 186 are recognized, Command cancellation and execution operations can be performed by blind touch while viewing the liquid crystal display 143.

  In addition, since the first and second finger rests 191 and 192 are formed on the top surface of the palm rest 6 around the operation buttons 185 and 186, the positions of the operation buttons 185 and 186 are determined. It can be easily confirmed by simply moving the fingertip without looking at the palm rest 6. Therefore, it is not necessary to check the positions of the operation buttons 185 and 186 by shifting the line of sight during the input operation, and the operability is improved.

  As shown in FIGS. 7 and 9, the operation buttons 185 and 186 are located immediately above the ceiling surface 13 c of the battery support portion 13. On the upper surface of the ceiling surface 13c, a pair of switches 195 and 196 that are turned on and off by the pressing portions 185a and 186 of the operation buttons 185 and 186 are arranged. The switches 195 and 196 are supported on a flexible wiring board 197.

  The wiring board 197 is overlaid on the upper surface of the ceiling surface 13 c, and the wiring board 197 is integrally provided with a connection piece 198 that extends toward the third circuit board 26. A wiring pattern (not shown) connected to the switches 195 and 196 including the connection piece 198 is printed on the wiring board 197. The connection piece 198 of the wiring board 197 is guided downward along the upright surface 13 a of the battery housing part 13, and the tip of the connection piece 198 is connected to the connection connector 199 on the third circuit board 26. Removably connected from above. For this reason, the connection piece 198 does not protrude greatly above the first circuit board 24.

  As shown in FIG. 7, a first battery housing portion 200 is formed on the upper surface of the ceiling surface 13 c adjacent to the mounting portion of the wiring board 197. An RTC (real time clock) battery 201 is attached to the battery housing part 200. The cable 202 connected to the RTC battery 201 is wired along the upper surface of the ceiling surface 13c, and the connector 203 at the tip of the cable 202 is detachably connected to the first circuit board 24.

  Further, in the bottom case 4, a sub-battery 206 for setting the resume function can be taken out between the upright surface 13 a of the battery housing portion 13 and one side edge portion of the first circuit board 24. Is housed in. A connector 208 is connected to the sub-battery 206 via a cable 207, and this connector 208 is detachably connected to the extension plate portion 28 of the second circuit board 25. The connection portion between the first circuit board 24 and the RTC battery 201 and the connection portion between the second circuit board 25 and the sub-battery 206 are close to the upright surface 13b of the battery housing portion 13, and the keyboard device 165. The overhang of the bottom is suppressed as much as possible.

  For this reason, in addition to the fact that the connection portions of the first to third circuit boards 24 to 26 are positioned below the keyboard support portion 9, a connector or a connector is provided between the keyboard device 165 and the first circuit board 24. Wirings do not have to protrude greatly, and most of the first circuit board 24 can be utilized as a mounting space for the circuit component 30.

  In addition, the connection piece 198 of the wiring board 197, the cable 202 of the RTC battery 201, and the cable 207 of the sub battery 206 are all connected to the first to third circuit boards 24-26 at positions adjacent to the standing surface 13b. Since these connection operations can be performed collectively from above the bottom case 4, there is no need to change the orientation of the bottom case 4 when performing this connection operation, and in the bottom case 4 with a limited size. Connection work can be performed easily.

  As shown in FIGS. 1, 31, and 32, an icon 215 is arranged in the rear half of the upper surface 5 a of the top cover 5. The icon 215 is exposed between the display unit 141 and the keyboard device 165 when the display unit 141 is rotated to the second position. In this embodiment, the operator can For easy viewing, the top surface 5a of the top cover 5 is located at the center along the left-right direction.

  The icon 215 includes a rectangular icon substrate 216 having translucency. On the icon substrate 216, a plurality of display units 217 for displaying the operation state and function contents of the computer 1 in a pattern are arranged in the horizontal direction. It is drawn at intervals. The icon substrate 216 is fixed to the upper surface 5a of the top cover 5 by means such as adhesion.

  An opening 218 is opened on the upper surface 5 a of the top cover 5. The opening 218 extends in the left-right direction so as to face the plurality of display portions 217 of the icon substrate 216, and a light shielding wall 220 extending downward is formed at the opening front edge of the opening 218. In addition, a plurality of partition walls 221 interposed between the display units 217 are integrally formed on the inner surface of the top cover 5. The front ends of these partition walls 221 are connected to the light shielding wall 220. Therefore, the adjacent display units 217 are partitioned from each other by the light shielding wall 220 and the partition wall 221.

  A diode substrate 224 facing the opening 218 is accommodated in the top cover 5. As shown in FIG. 32, the diode substrate 224 is located between the upper surface 5 a of the top cover 5 and the rear shield plate 155. The diode substrate 224 of this embodiment is screwed to the top cover 5 together with the rear shield plate 155, and the upper surface of the diode substrate 224 is in contact with the light shielding wall 220 and the partition wall 221.

  As shown in FIG. 33, the diode substrate 224 includes a flexible wiring substrate 225 and a reinforcing plate 226 attached to the lower surface of the wiring substrate 225. The wiring board 225 has an extension piece 225 a extending to the side of the reinforcing plate 226, and the connection piece 225 a is guided into the bottom case 4 and connected to the first circuit board 24.

  On the upper surface of the wiring board 225, a plurality of light emitting diodes 227 are arranged at intervals in the left-right direction. The light emitting diode 227 serves as a light source for the icon 215, and is positioned corresponding to the lower side of each display unit 217. For this reason, when the light-emitting diode 227 emits light, the display unit 217 corresponding to the light-emitting diode 227 is turned on, and the operation state of the computer 1 is displayed.

  As shown in FIG. 33, the wiring board 225 has a reinforcing portion 229 around the light emitting diode 227. The reinforcing portion 229 is made of an aluminum deposited film having light reflectivity, and a part of the reinforcing portion 229 is opposed to the display portion 217 through the opening 218.

  For this reason, of the light emitted from the light emitting diode 227, the light leaking inside the top cover 5 is reflected on the reinforcing portion 229 and becomes the light toward the display portion 217, and the amount of light toward the display portion 217 correspondingly. Will increase. Therefore, the luminance of the display unit 217 is improved, and the visibility of the display unit 217 is improved.

  Further, according to the configuration of the icon 215, the plurality of display units 217 are drawn on the single icon substrate 216. Therefore, the icon substrate 216 is simply attached to the upper surface 5 a of the top cover 5. A plurality of display portions 217 can be arranged on the upper surface 5a. For this reason, the icon 215 can be easily assembled as compared with the case where the plurality of display portions 217 are individually provided on the upper surface 5 a of the top cover 5.

  In addition, since the top cover 5 includes a partition wall 221 interposed between the plurality of display units 217, the display units 217 are partitioned from each other, and the display units adjacent to the respective display units 217 are provided. The light from the light emitting diode 227 corresponding to 217 is not mixed. Therefore, the display part 217 that is lit and the display part 217 that is not lit are clearly identified, and the visibility of the icon 215 is improved.

  As shown in FIG. 33, one end of the diode substrate 224 is extended laterally, and a normally closed power switch 232 for turning off the power of the computer 1 is mounted on the extended portion 231. The power switch 232 is connected to the first circuit board 24 via a wiring pattern (not shown) printed on the diode board 224. The power switch 232 is turned off by the display unit 141 when the display unit 141 is rotated to the first position, and includes a manipulator 233 that can project and retract.

  As shown in FIG. 34, a through hole 234 that faces the operation element 233 of the power switch 232 is opened at the rear end portion of the upper surface 5 a of the top cover 5. Between the through hole 234 and the operation element 233, a metal pressing piece 235 capable of elastic deformation is disposed. One end of the pressing piece 235 is screwed to the inner surface of the top cover 5, and the other end that is the free end of the pressing piece 235 is opposed to the operating element 233.

  Further, the connecting portion 145 of the display unit 141 has a convex portion 237 having a cam shape located at a portion facing the through hole 234. As shown in FIG. 35, the convex portion 237 faces the through-hole 234 and presses the pressing piece 235 downward when the display unit 141 is rotated to the first position. By this pressing, the pressing piece 235 is elastically deformed to press the operating element 233, and the power switch 232 is turned off.

  According to this configuration, when the display unit 141 is rotated to the first position, the power switch 232 is turned off, so that it is possible to reliably prevent the computer 1 from being forgotten to be turned off.

  In addition, since the power switch 232 is mounted on the extension portion 231 of the diode substrate 224, the power switch 232 and the first circuit substrate 24 are connected using a wiring pattern printed on the diode substrate 224. be able to. For this reason, special cables and connectors connected to the power switch 232 can be omitted, and wiring in the housing 3 can be simplified.

  As shown in FIG. 16, a pair of leg attachment portions 241 and 242 are formed at the left and right corners defined by the rear surface 4c of the bottom case 4 and the left and right side surfaces 4d and 4e. The leg attachment portions 241 and 242 are formed of recesses that are continuously opened toward the rear, side, and lower side of the bottom case 4, and the base unit 2 is attached to the operator by the operator. A pair of legs 243 and 244 that are tilted up in the direction of lowering the hand side are attached. One end of each of the legs 243 and 244 is pivotally supported by the leg mounting portions 241 and 242 via the pivot 245.

  For this reason, the legs 243 and 244 are rotated toward the lower side of the leg attaching portions 241 and 242 and enter the leg attaching portions 241 and 242 so as to protrude downward from the bottom surface 4a of the bottom case 4. Thus, it can be rotated over the storage position rotated. When the legs 243 and 244 are rotated to the retracted position, the legs 243 and 244 are substantially flush with the rear surface 4c and the side surfaces 4d and 4e of the bottom case 4.

  In order to assemble the computer 1 having such a configuration, first, the first to third circuit boards 24 to 26 and the hard disk drive device 44 are screwed to the bottom case 4. Next, a wiring board 197 having switches 195 and 196 is placed on the upper surface of the ceiling surface 13 c of the battery support portion 13, and the connection piece 198 is connected to the connection connector 199 of the third circuit board 26. Then, the RTC battery 201 is attached to the first battery housing part 200, and the connector 203 connected to the RTC battery 201 is connected to the first circuit board 24. Similarly, the sub battery 206 is accommodated in the bottom case 4, and the connector 208 of the cable 207 connected to the sub battery 200 is connected to the extension plate portion 28 of the second circuit board 25.

  Subsequently, the top cover 5 is put on the bottom case 4, and the top cover 5 is screwed to the bottom case 4. At this time, the display unit 141 is previously attached to the top cover 5 via a hinge device, and the display unit 141 is rotated to the third position. For this reason, the display unit 141 falls greatly toward the rear of the housing 3, and the keyboard mounting opening 7 on the upper surface 5 a of the top cover 5 is exposed, so that the first inside of the bottom case 4 through the keyboard mounting opening 7 is exposed. Most of the circuit board 24 is exposed. Therefore, a fingertip is inserted into the keyboard mounting opening 7, and the cable 147 connected to the display unit 141 and the connection piece 225 a of the diode substrate 224 are connected to the first circuit substrate 24.

  Next, the keyboard device 165 is fitted into the keyboard mounting opening 7 from above and screwed to the keyboard support portion 9. Finally, a cover 181 is attached to the keyboard support portion 9, and the cover 181 covers the screwed portions between the top cover 5 and the keyboard device 165, whereby the assembly of the series of computers 1 is completed.

  By the way, in the computer 1 configured as described above, the battery pack 100 is detached from the battery housing portion 13 and connected to the power connector 88, for example, when the battery pack 100 is connected to an external charging device for charging. It may be used by inserting the plug.

  In a state where the battery pack 100 is removed from the battery housing portion 13, the battery housing portion 13 extends in the left-right direction at the front portion of the bottom case 4 as seen in FIG. 5, and from the front surface 4 b of the bottom case 4. Since it is continuously open to the right side surface 4e, when an input operation is performed through the keyboard device 165, there is a possibility that the computer 1 may be tilted toward the operator's hand or the posture of the computer 1 may become unstable. .

  In particular, the keyboard device 165 is arranged in the rear half of the top surface 5a of the top cover 5, and the front half of the top surface 5a is the palm rest 6, so that the operator can perform an input operation by placing his hand on the palm rest 6 during the input operation. Will do. Then, since the palm rest 6 pushed from above is located immediately above the battery housing portion 13, there is a possibility that the computer 1 may fall further to the hand side.

  However, in the above configuration, since the support leg 125 is pivotally supported on the ceiling surface 13c of the battery housing portion 13, when the input operation is performed with the battery housing portion 13 empty as described above, FIG. The support leg 125 is rotated downward toward the use position as shown in FIG. Then, since the ground contact surface 126a of the leg main body 126 is positioned on the same plane as the bottom surface 4a of the bottom case 4, the support leg 125 can support the ceiling surface 13c of the battery housing portion 13.

  Therefore, even if the key 167 of the keyboard device 165 is pressed, the computer 1 does not tilt or rattle. Therefore, the computer 1 can be maintained in a stable posture, and the input operability is improved.

  Further, since the computer 1 has the palm rest 6 on the upper surface 5a of the top cover 5, it is possible to perform an input operation by placing a hand on the palm rest 6. For this reason, the input operation can be easily performed without being forced to have an unnatural posture with the wrist lifted during the input operation.

  When the computer 1 is used alone, when the computer 1 is connected to an external peripheral device, an external unit 300 for function expansion as shown in FIGS. 36 to 49 is used.

  The external unit 300 is used by connecting to the rear part of the computer 1 and includes a base 301 as shown in FIGS. The base 301 is divided into a lower case 302 and an upper case 303 that covers the lower case 302. The lower case 302 and the upper case 303 are made of a synthetic resin material such as ABS resin.

  As shown in FIG. 39, the lower case 302 includes a flat bottom surface 302a having a rectangular shape, a rear surface 302b continuous with the bottom surface 302a, and left and right side surfaces 302c and 302d. A plurality of boss portions 304 (shown in FIG. 46) are erected on the bottom surface 302 a, and the circuit board 305 is fixed on these boss portions 304 via screws 314. The circuit board 305 is positioned in the rear half of the lower case 302, and the rear edge and the left and right side edges thereof are adjacent to the rear surface 302b and the side surfaces 302c and 302d of the lower case 302.

  At the rear end of the circuit board 305, for example, a parallel port 306 for connecting a printer, a connection port 307 for connecting an external device having an RS232C standard interface connector, and RGB for connecting an external CRT display A connector 308, expansion connectors 309 and 310 for connecting a mouse and an external keyboard, and a power connector 311 into which an AC adapter plug is inserted are arranged in a line in the left-right direction.

  An FDD connector 312 for connecting an external floppy disk drive is disposed at the right end of the circuit board 305. A relay connector 313 is attached to the front end of the circuit board 305. The relay connector 313 is electrically connected to the connection port 307 and various connectors 309 to 312 via a wiring pattern (not shown) printed on the circuit board 305.

  A metal first connector panel 315 is attached to the rear end of the circuit board 305. The first connector panel 315 is screwed together with the circuit board 305 to the boss 304 on the bottom surface 302a. The first connector panel 315 is arranged in an upright posture with respect to the circuit board 305, and covers the connection part between the circuit board 305, the connection port 307, and the connectors 308 to 311 from the rear. A pair of support pieces 315a and 315b extending upward are integrally formed at the left and right ends of the first connector panel 315. 36, a plurality of outlets 316 are opened on the rear surface 302b of the lower case 302, and the connection port 307 and the connectors 308 to 311 are exposed to the rear of the base 301 through the outlets 316. ing.

  A metal second connector panel 318 is attached to the right end of the circuit board 305. The second connector panel 318 is screwed together with the circuit board 305 to the boss 304 on the bottom surface 302a. The second connector panel 318 is disposed in an upright posture with respect to the circuit board 315, and covers a connection portion between the circuit board 305 and the FDD connector 312 from the side. A single outlet 317 is opened on the right side surface 302 d of the lower case 302, and the FDD connector 312 is exposed to the side of the base 301 through the outlet 317.

  The bottom surface 302a of the lower case 302 is covered with a metal first shield plate 319. The first shield plate 319 is screwed to the boss portion 304 together with the circuit board 305. At this time, the circuit board 305 has a conductive portion 320 (shown in FIG. 39) at a contact portion with the boss portion 304. The conductive portion 320 is connected to a wiring pattern for ground (not shown) printed on the circuit board 305. With the circuit board 305 screwed to the boss portion 304, the circuit board 305 and the first shield plate 319, The first and second connector panels 315 and 316 are electrically connected.

  As shown in FIGS. 39 and 40, a metal second shield plate 321 is attached to the upper surface of the circuit board 305. The second shield plate 321 integrally covers the connection port 307 and various connectors 308 to 311 located at the rear end of the circuit board 305 and the FDD connector 312 at the right end of the circuit board 305 from above. Yes. The second shield plate 321 is fixed to the upper end portion of the first connector panel 315 via a screw 322. The peripheral edge portion of the second shield plate 321 is in contact with the first connector panel 315, the second connector panel 318, and the first shield plate 319. The first shield plate 319, the first and second shield plates 319, The connector panels 315 and 318 are electrically connected.

  Therefore, the first and second shield plates 319 and 321 and the first and second connector panels 315 and 318 cooperate with each other to surround the connection port 307 and the various connectors 308 to 312. In addition, leakage of high-frequency noise from these connection ports 307 and various connectors 308 to 312 is prevented.

  As shown in FIG. 38, the upper case 303 has a placement surface 325 for placing the computer 1 and a pair of left and right stopper portions 326 and 327 that are connected to the rear end of the placement surface 325. .

  The mounting surface 325 is continuously open to the front and left and right sides of the base 301, and has a size that substantially corresponds to the rear half of the bottom surface 4 a of the computer 1. Therefore, when the computer 1 is placed on the placement surface 325, the front half of the computer 1 protrudes from the front end of the base 301 toward the operator's hand as shown in FIG. Yes.

  In the case of the present embodiment, the mounting surface 325 is inclined downward as it advances forward from the rear end connected to the stopper portions 326 and 327, and the width dimension of the mounting surface 325 in the left-right direction is the above computer. The distance between the left and right legs 243 and 244 is set slightly smaller. Moreover, the height dimension from the mounting surface 325 to the bottom surface 302a of the lower case 302 is set to be larger than the projecting dimension from the bottom surface 4a of the bottom case 4 when the legs 243 and 244 are rotated to the use position. Yes.

  Therefore, as shown in FIG. 37, even if the computer 1 is placed on the placement surface 325 with its legs 243 and 244 protruding to the use position, the legs 243 and 244 are left and right of the base 301. The legs 243 and 244 do not interfere with the placement surface 325 and do not hit the top plate or the like of the desk on which the external unit 300 is placed.

  Since the stopper portions 326 and 327 have the same structure, one stopper portion 326 will be described as a representative. As shown in FIGS. 36 and 38, the stopper portion 326 includes a substantially vertical stopper surface 331 continuous with the rear end of the mounting surface 325, a flat upper surface 332 continuous with the upper end of the stopper surface 331, and the upper surface 332 or And an outer peripheral surface 333 continuous with the stopper surface 331. The outer peripheral surface 333 is continuous with the rear surface 302b and the side surfaces 302c and 302d of the lower case 302.

  The rear end portions of the stopper portions 326 and 327 are integrally connected by a connecting wall 335. The connecting wall 335 is continuous with the rear surface 302b of the lower case 302 as shown in FIG. The upper case 303 includes an opening 336 (shown in FIG. 38) defined by the rear edge of the mounting surface 325, left and right stoppers 326, 327, and a connecting wall 335. The opening 336 is The second shield plate 321 is positioned directly above.

  The upper case 303 is coupled to the lower case 302 by screwing the outer peripheral surface 333 to the support pieces 315a and 315b from the rear and screwing both front end sides of the mounting surface 325 to the bottom surface 302a. ing.

  As shown in FIGS. 39 and 46, a connector unit 340 is accommodated in the base 301. The connector unit 340 includes a metal frame 341. The frame 341 is overlaid on the upper surface of the second shield plate 321, and the rear end portion thereof is fastened to the upper end portion of the first connector panel 315 via the screw 322. A pair of left and right support pieces 342 a and 342 b extending in the forward direction are integrally formed at the front end portion of the frame 341. The support pieces 342a and 342b are fixed to the upper surface of the front end portion of the circuit board 305 via the screw 314 and are in contact with the conductive portion 320 of the circuit board 305.

  For this reason, the frame 341 is electrically connected to the circuit board 305 and the second shield plate 321 together with the rear portion thereof being overlapped with the second shield plate 321.

  As shown in FIG. 43, a pair of left and right guide portions 344 and 345 are integrally projected on both sides of the front end of the frame 341. The guide portions 344 and 345 are positioned below the placement surface 325, and the guide portions 344 and 345 include a pair of left and right guide rails 346a, 346b, 347a, and 347b, respectively. The guide rails 346a, 346b, 347a, 347b extend in the front-rear direction below the placement surface 325, and the lower edges of the guide rails 346a, 346b, 347a, 347b are supported by the bottom surface 302a of the lower case 302. Yes.

  The guide rails 346a, 346b, 347a, 347b include guide holes 350a, 350b, 351a, 351b extending in the front-rear direction. As shown in FIG. 40, the guide holes 350a, 350b, 351a, 351b are inclined forward and downward so as to be parallel to the placement surface 325 described above. Then, curved portions 352 and 353 that are curved in an arc shape downward are formed at the front end portions of one guide holes 350a and 351a of the respective guide portions 344 and 345.

  In addition, guide walls 355a and 355b extending in the front-rear direction are formed on both sides of the rear end of the frame 341. Slide holes 356a and 356b extending in the front-rear direction are formed in the guide walls 355a and 355b, and these slide holes 356a and 356b are inclined forward and downward so as to follow the inclination of the mounting surface 325.

  As shown in FIG. 46, a synthetic resin connector cover 361 is fixed to the frame 341 via screws 362. As shown in FIG. 38, the connector cover 361 enters the opening 336 of the upper case 303. The connector cover 361 includes a substantially vertical connector installation surface 363 that is continuous with the rear end of the placement surface 325 and an upper surface 364 that is continuous with the upper end of the connector installation surface 363. A recess 364a that continues to the connecting wall 335 is formed.

  The connector installation surface 363 is flush with the stopper surfaces 331 of the stopper portions 326 and 327, and an extension connector 365 is disposed on the connector installation surface 363. The expansion connector 365 is detachably connected to the expansion connector 63 of the computer 1 and includes a pair of positioning pins 365a and 365b at both left and right ends thereof. The positioning pins 365a and 365b are removably inserted into the positioning holes 63a and 63b of the expansion connector 63, and the expansion connectors 63 and 365 are aligned with each other by this insertion.

  The extension connector 365 is supported by the connector cover 361, and most of the expansion connector 365 is covered with the connector cover 361 except for the exposed portion of the connector installation surface 363. As shown in FIG. 46, a flexible wiring board 367 is connected to the extension connector 365. The wiring board 367 is inverted into a U shape inside the connector cover 361 and then guided below the placement surface 325. A second relay connector 368 is attached to the front end of the wiring board 367, and the second relay connector 368 is connected to the first relay connector 313 at the front end of the circuit board 305.

  Therefore, the expansion connector 365 is connected to the connection port 307 and various connectors 308 to 312 via the wiring board 367 and the circuit board 305, and a signal input to the single expansion port 307 is connected to the connection port 307. 307 and various connectors 308 to 312 are distributed.

  On the other hand, as shown in FIGS. 40, 46 and 49, a metal slide plate 371 is mounted on the frame 341 so as to be slidable in the front-rear direction. The slide plate 371 is integrally provided with a pair of left and right slide guides 372a and 372b interposed between guide rails 346a, 346b, 347a and 347b of the guide portions 344 and 345 (shown in FIGS. 43 and 44). Guide pins 373a and 373b are attached to the front ends of the slide guides 372a and 372b. Both end portions of the guide pins 373a and 373b are slidably fitted into the guide holes 350a, 350b, 351a and 351b, respectively.

  As shown in FIGS. 46 and 49, support walls 374a and 374b facing the guide walls 355a and 355b are formed on the left and right sides of the rear end of the slide plate 371, respectively. Guide pins 375a and 375b project from the support walls 374a and 374b, and the guide pins 375a and 375b are slidably fitted into the slide holes 356a and 356b.

  For this reason, the slide plate 371 is slidable in the front-rear direction using a fitting portion between the guide pins 373a and 373b and the guide holes 350a and 350b, 351a and 351b and the guide pins 375a and 375b and the slide holes 356a and 356b as a guide. It is supported by the frame 341.

  As shown in FIGS. 39, 42, and 44, a pair of locking pieces 377 a and 377 b that are bent downward are formed on the left and right sides of the front end of the frame 341. On the bottom surface 302a of the lower case 302, spring receivers 378a and 378b project from the locking pieces 377a and 377b. A toggle spring 380 is installed between the locking pieces 377a and 377b and the spring receivers 378a and 378b. The toggle spring 380 is configured by a tension coil spring, and pulls the slide plate 371 toward the front side of the lower case 302 at all times.

  Claw fittings 385a and 385b are interposed between the guide rails 346a, 346b, 347a and 347b of the guide portions 344 and 345, respectively. One end of each of the claw fittings 385a and 385b is rotatably supported by the guide pins 373a and 373b, and is slid back and forth integrally with the slide plate 371.

  As shown in FIG. 49, the claw fittings 385a and 385b include fitting pins 386. The fitting pin 386 is slidably fitted into one guide hole 350a, 351a having the curved portions 352, 353 in front of the guide pins 373a, 373b. As shown in FIG. 45, the claw fittings 385a and 385b are urged in the direction of pushing up the end opposite to the pivot end by the torsion coil spring 387 mounted on the outer periphery of the guide pins 373a and 373b. By this urging, the fitting pin 386 is slidably pressed against the opening edges of the guide holes 350a and 351a.

  Therefore, when the claw fittings 385a and 385b are slid forward through the slide plate 371, when the fitting pin 386 reaches the curved portions 352 and 353 of the guide holes 350a and 351a, the claw fittings 385a and 385b are guided. The pins 373a and 373b are pivoted downward about the fulcrum.

  Each claw fitting 385a, 385b is integrally provided with an engaging claw 390a, 390b extending upward. As shown in FIG. 38, the engaging claws 390a and 390b are pierced through a pair of slits 391a and 391b opened in the mounting surface 325, and the slits 391a and 391b It extends in the front-rear direction so as to follow the moving direction of 385b.

  The engaging claws 390a and 390b are retracted from the mounting surface 325 when the fitting pins 386 of the claws 385a and 385b are guided by the curved portions 352 and 353 as the slide plate 371 slides forward. On the contrary, when the fitting pin 386 is slid to a position out of the curved portions 352 and 353, it passes through the slits 391a and 391b and protrudes onto the mounting surface 325. .

  Accordingly, the engaging claws 390a and 390b extend from the first position where the engaging claws 390a and 390b are retracted from the placement surface 325 to the second position adjacent to the connector installation surface 363 while protruding on the placement surface 325. The engaging claw 390a, 390b has a moving stroke larger than the fitting length of the expansion connectors 63, 365.

  Further, the slits 391 a and 391 b of the mounting surface 325 face the engagement ports 90 a and 90 b opened in the bottom surface 4 a of the bottom case 4 when the computer 1 is mounted at a predetermined position on the mounting surface 325. It is like that. For this reason, when the engaging claws 390a and 390b are moved to the second position in a state where the computer 1 is placed on the placing surface 325, the engaging claws 390a and 390b are opened at the peripheral edges of the engaging ports 90a and 90b. And contact with the terminal piece 91 exposed in the engagement ports 90a and 90b.

  As shown in FIGS. 45 and 46, the connector unit 340 includes an operation mechanism 400 for moving the engaging claws 390a and 390b to the first position and the second position. The operation mechanism 400 includes an operation lever 401 operated by a fingertip, and a pair of left and right toggle links 402a and 402b that rotatably connect the operation lever 401 and a rear end portion of the slide plate 371. The operation lever 401 has a pair of arm portions 403a and 403b at both left and right end portions thereof, and the distal ends of these arm portions 403a and 403b are connected to the connector cover 361 via the pivot 404 so as to be vertically rotatable. .

  One end of the toggle links 402a and 402b is rotatably connected to an intermediate portion of the arm portions 403a and 403b via a pivot 405, and the other end of the toggle links 402a and 402b is connected to the guide pins 375a and 375b. It is connected so that it can rotate. The connecting portion between the operating lever 401 and the toggle links 402a and 402b is located behind the connecting portion between the operating lever 401 and the connector cover 361. The rotation range of the operating lever 401 is the toggle link 402a. , 402b.

  That is, as shown in FIG. 49, when the operating lever 401 is rotated upward, the connecting portion between the operating lever 401 and the toggle links 402a and 402b is drawn upward while moving upward, so that the toggle links 402a and 402b. And the guide pins 375a and 375b are slid forward. The upward rotation of the operation lever 401 is stopped when the guide pins 375a and 375b reach the front ends of the slide holes 356a and 356b. At this time, the rising angle of the operation lever 401 is maximized.

  On the contrary, as shown in FIG. 40, when the operation lever 401 is rotated downward, the connecting portion between the operation lever 401 and the toggle links 402a and 402b moves downward against the urging force of the toggle spring 380. Since it is pushed backward, the toggle links 402a and 402b are laid down to an angle that is substantially parallel to the slide plate 371, and the guide pins 375a and 375b are slid rearward. The downward rotation of the operation lever 401 is stopped when the guide pins 375a and 375b reach the rear ends of the slide holes 356a and 356b. At this time, the rising angle of the operation lever 401 is minimized.

  Therefore, the operation lever 401 can be rotated between a release position rotated upward of the connector cover 361 and a connection position lying substantially horizontally so as to be continuous with the upper surface 364 of the connector cover 361. ing.

  In the state where the operation lever 401 is rotated to the release position, as shown in FIG. 49, the guide pins 375a and 375b are positioned at the front ends of the slide holes 356a and 356b, so that the slide plate 371 is slid forward, The fitting pins 386 of the claws 385a and 385b are guided by the curved portions 352 and 353 of the guide holes 350a and 351a. Therefore, the claw fittings 385a and 385b are rotated downward, and the engagement claws 390a and 390b are moved to the first position.

  In the state where the operation lever 401 is rotated to the coupling position, as shown in FIG. 40, the guide pins 375a and 375b are positioned at the rear ends of the slide holes 356a and 356b, so that the slide plate 371 slides backward. Then, the fitting pins 386 of the claws 385a and 385b are detached from the curved portions 352 and 353. Therefore, the engaging claws 390a and 390b move to the second position and project on the placement surface 325.

  Therefore, the slide plate 371 substantially constitutes a part of the operation mechanism 400. In this embodiment, the urging force of the toggle spring 380 that attempts to slide the slide plate 371 forward is It is determined to be smaller than the fitting force of the expansion connectors 63 and 365.

  As shown in FIGS. 38 and 48, the upper case 303 of the base 301 includes a pair of left and right guide members 410 and 411 that determine the mounting position of the computer 1 with respect to the mounting surface 325. The guide members 410 and 411 are supported by the stopper portions 326 and 327 of the upper case 303. Since these guide members 410 and 411 have the same structure, one guide member 410 will be described as a representative.

  As shown in FIG. 48, the guide member 410 includes a synthetic resin main body 412 having a hollow cylindrical shape. In addition, a guide housing chamber 413 that houses the main body 412 is formed inside the stopper portion 326. The guide storage chamber 413 is connected to the mounting surface 325 through a through hole 414 opened in the stopper surface 331, and a support plate 415 that is flush with the mounting surface 325 is provided in the guide storage chamber 413. Has been placed. Therefore, the main body 412 of the guide member 410 is disposed between the support plate 415 and the placement surface 325 through the through hole 414 and extends along the front-rear direction of the upper case 303.

  A stopper portion 416 is formed on the outer peripheral surface of the intermediate portion of the main body 412 so as to be hooked from the inside of the guide housing chamber 413 to the opening edge portion of the through hole 414. In a state where the stopper portion 416 is caught by the opening edge portion of the through hole 414, the front half portion of the main body 412 protrudes on the mounting surface 325.

  Therefore, the guide member 410 has a first guide position in which the front half of the main body 412 protrudes on the mounting surface 325 and a second guide position in which a large part of the main body 412 is retracted into the guide accommodating chamber 413. It is supported by the stopper 326 so as to be freely slidable in the front-rear direction.

  Further, the guide member 410 is always biased toward the first guide position by the spring 418. By this urging, the stopper portion 416 is hooked on the opening edge portion of the through hole 414, and the guide member 410 is held at the first guide position.

  The guide member 410 has an engaging portion 420 that is detachably hooked to the computer 1 at the front end portion of the main body 412 thereof. The engaging portion 420 includes a first engaging surface 421 that receives the rear end portion of the bottom surface 4 a of the bottom case 4, and a second engaging surface 422 that receives the rear surface 4 c of the bottom case 4. An engaging projection 423 is provided on the engaging surface 421. When the computer 1 is placed on the placement surface 325, the engagement protrusion 423 is detachably fitted into the openings 18a on both sides of the rear end of the bottom surface 4a.

  By this fitting, the computer 1 is positioned with respect to the mounting surface 325, and the engagement claws 390a and 390b and the engagement holes 90a and 90b are aligned.

  Next, a procedure for connecting the computer 1 to the external unit 300 having such a configuration will be described.

  Prior to the connection of the computer 1, in the external unit 300, first, the operation lever 401 is rotated toward the release position. By this rotation, the claw fittings 385a and 385b are slid forward via the slide plate 371. Therefore, the claw fittings 385a and 385b are rotated downward, and the engagement claws 390a and 390b are rotated to the first position. Moved. For this reason, the engaging claws 390 a and 390 b are kept in a state of being stored inside the base 301 without protruding on the placement surface 325.

  Therefore, when the computer 1 is placed on the placement surface 325, the engaging claws 390a and 390b do not get in the way or get caught by the computer 1.

  Next, the rear end portion of the computer 1 is placed on the placement surface 325. At this time, since the guide members 410 and 411 for positioning the computer 1 exist at the left and right ends of the mounting surface 325, the bottom surface 4a of the bottom case 4 is superimposed on the first engagement surface 421. The rear surface 4 c of the bottom case 4 is brought into contact with the second engagement surface 422. As a result, rough positioning of the placement surface 325 and the computer 1 is performed.

  Then, the computer 1 is moved left and right using the second engagement surface 422 as a guide, and the engagement protrusion 423 on the first engagement surface 421 is fitted into the opening 18 a of the bottom surface 4 a of the computer 1. By this fitting, the position of the computer 1 with respect to the mounting surface 325 is determined, and the engagement claws 390a and 390b and the engagement ports 90a and 90b are aligned. At this time, since the engaging claws 390a and 390b are retracted below the placement surface 325, the engaging claws 390a and 390b do not interfere with the bottom surface 4a of the computer 1 and the computer 1 is aligned. Can be easily performed.

  When the position of the computer 1 with respect to the mounting surface 325 is determined, the operation lever 401 is rotated downward toward the coupling position against the urging force of the toggle spring 380. By this rotation, the claw fittings 385a and 385b are slid rearward via the slide plate 371, so that the claw fittings 385a and 385b move rearward while turning upward, and the engagement claws 390a and 390b Moved to position 2.

  Then, the engaging claws 390a and 390b are hooked on the engaging openings 90a and 90b on the bottom surface 4a of the computer 1 and are moved rearward toward the connector installation surface 363 as they are, so that the computer 1 is engaged with the engaging claws 390a and 390b. Following this movement, the connector is installed on the connector installation surface 363.

  At this time, the left and right guide members 410 and 411 hooked on the bottom surface 4a of the computer 1 can freely slide in the front-rear direction, so that the computer 1 is not obstructed. In addition, since the guide members 410 and 411 are hooked on the left and right ends of the bottom surface 4a, and the engaging claws 390a and 390b are also engaged with the left and right portions of the bottom surface 4a, the computer 1 is retracted when the computer 1 is pulled. 1 does not shift so as to incline left and right, and the parallelism between the connector installation surface 363 and the rear surface 4c of the computer 1 can be maintained.

  When the computer 1 is pulled toward the connector installation surface 363, the positioning pins 365a and 365b of the expansion connector 365 are positioned in the positioning holes 63a and 63b of the expansion connector 63 before the engaging claws 390a and 390b reach the second position. To fit. By this fitting, final alignment between the expansion connector 63 and the expansion connector 365 is performed. When the computer 1 is completely pulled in, the connection between the expansion connector 63 and the expansion connector 365 is completed, and the computer 1 and the external unit 300 are electrically connected.

  For this reason, a connection port 307 and various connectors 308 to 312 are added to the computer 1, and when this computer 1 is used alone, it is possible to connect a mouse and an external keyboard such as a printer and an external CRT display.

  On the other hand, in order to remove the external unit 300 from the computer 1, the operation lever 401 is rotated upward from the connection position toward the release position. By this rotation, the claw fittings 385a and 385b are slid forward via the slide plate 371, so that the claw fittings 385a and 385b are rotated downward, and the engagement claws 390a and 390b are moved to the first position. Moved. For this reason, the engaging claws 390a and 390b are disengaged from the engaging openings 90a and 90b and retracted below the placement surface 325, so that the retraction of the computer 1 is released. When the engaging claws 390a and 390b are immersed in the slits 391a and 391b, the ends of the engaging claws 390a and 390b abut against the front ends of the engaging ports 90a and 90b, and the computer 1 is moved away from the connector installation surface 363. Press on. By this pressing, the computer 1 is pushed out from the placement surface 325, and the connection between the expansion connector 63 and the expansion connector 365 is released.

  If the hand is released from the operation lever 401 in the process of rotating the operation lever 401 to the release position, the slide plate 371 and the claw fittings 385a and 385b are engaged with the engagement claws 390a and 390b and the engagement port 90a by the toggle spring 380. , 90b, the computer 1 may be pushed from the placement surface 325 at a stretch.

  However, in the above configuration, the urging force of the toggle spring 380 is set to be smaller than the fitting force between the expansion connector 63 and the expansion connector 365, so that this fitting force overcomes the force that pushes out the computer 1. . Therefore, the rotation of the operation lever 401 is temporarily stopped before returning to the release position, and the computer 1 and the external unit 300 are held in a state of being connected by the extension connectors 63 and 365. Is done.

  Therefore, the connection of the expansion connectors 63 and 365 is released at once, and the computer 1 is not dropped from the placement surface 325, and adverse effects on the computer 1 can be prevented.

  According to such an external unit 300, the engaging claws 390 a and 390 b that draw the computer 1 into the connector installation surface 363 are hooked on the bottom surface 4 a of the computer 1, thereby pressing the bottom surface 4 a onto the mounting surface 325. Therefore, even if the front end portion of the computer 1 is lifted when the external unit 300 is connected to the computer 1, the computer 1 does not float from the placement surface 325, and the computer 1 is firmly placed on the placement surface 325. It can be depressed.

  Therefore, the connecting portions of the expansion connectors 63 and 365 are not subjected to excessive bending or twisting, and the expansion connectors 63 and 365 can be prevented from being damaged. At the same time, since the expansion connectors 63 and 365 are not unexpectedly disconnected, important data is not erased and the computer 1 does not malfunction, and the reliability of the connection between the computer 1 and the external unit 300 is improved. There are advantages.

  Moreover, since the mounting surface 325 of the external unit 300 has a size that allows the rear portion of the computer 1 to be mounted, the engaging claws 390a and 390b are positioned close to the connection portions of the expansion connectors 63 and 365. 1 is caught on the bottom surface 4a. For this reason, even when the front portion of the computer 1 is lifted, the parallelism between the rear surface 4c of the computer 1 and the connector installation surface 363 of the external unit 300 is maintained. It becomes difficult to add torsion, which contributes effectively by preventing the expansion connectors 63 and 365 from being damaged.

  Since the engaging claws 390a and 390b are engaged with the engaging openings 90a and 90b of the computer 1, they contact the ground terminal piece 91 exposed in the engaging openings 90a and 90b. 1 and the engaging claws 390a and 390b are kept in a conductive state. Since the engaging claws 390a and 390b are in contact with the first shield plate 319 in the base 301 via the metal frame 341, the grounding terminal piece 91 is engaged with the engaging claws 90a and 90b. It can be grounded to the external unit 300 side.

  Therefore, when the computer 1 is connected to the external unit 300 and used, special lead wires and connectors for grounding the computer 1 are not necessary.

  Furthermore, since the mounting surface 325 of the external unit 300 is inclined downward as it proceeds from the connector installation surface 363 to the operator's hand side, when the computer 1 is connected to the external unit 300, the computer 1 Tilt up to a position where the side of the hand is lowered. For this reason, the operativity of the keyboard apparatus 165 becomes favorable and usability improves.

  At the same time, since the computer 1 includes the FDD connector 41 on the right side surface 4e, the FDD connector 41 can be used alone even when the external unit 300 is connected to the computer 1. Since the external unit 300 also includes a dedicated FDD connector 312, an external floppy disk drive device can be connected to each of the FDD connectors 41 and 312. For this reason, two external floppy disk drive devices can be connected to the computer 1, and for example, when exchanging data, it is not necessary to replace the floppy disk, improving usability.

  Further, according to the above configuration, when a plurality of peripheral devices such as an external keyboard and a printer are connected to the computer 1, when the connection between these peripheral devices and the computer 1 is released, the operation lever 401 is set as described above. The connection between the extension connector 63 and the extension connector 365 may be released by operating to the release position. For this reason, it is not necessary to release the connection between the plurality of peripheral devices and the computer 1, so that this operation can be performed quickly in a short time, and portability is important as in the portable computer 1. Will be convenient to what is done.

  In addition, in a state where the operation lever 401 of the external unit 300 is rotated to the coupling position, the toggle links 402a and 402b are swung in a posture substantially parallel to the slide plate 371, and the toggle links 402a and 402b are operated. A connection point with the lever 401 and a connection point between the toggle links 402a and 402b and the slide plate 371 are positioned on a straight line along the front-rear direction. For this reason, unless the operation lever 401 is operated, the engaging claws 390a and 390b cannot be slid back and forth. Even when the computer 1 is connected to the external unit 300 and the computer 1 is pulled to the near side, The connection between the extension connector 63 and the extension connector 365 cannot be released.

  Therefore, when the connection between the computer 1 and the external unit 300 is released, a conscious operation such as turning the operation lever 401 from the coupling position toward the release position is always required, which is accompanied by an inadvertent release. Trouble can be prevented beforehand.

1 is a perspective view of a portable computer according to an embodiment of the present invention. The perspective view which decomposes | disassembles and shows the state which removed the keyboard apparatus from the base unit. The side view of the computer which cut the attachment part of the keyboard apparatus. The side view of the computer which shows the state which incorporates a keyboard apparatus in a housing | casing. The front view of the computer which shows the state which removed the battery pack from the battery accommodating part. The perspective view which shows a battery accommodating part and the battery pack accommodated here. The perspective view which shows the state which incorporated the 1st thru | or 3rd circuit board and the hard-disk drive device in the bottom case. The perspective view which shows the positional relationship of the 1st thru | or 3rd circuit board. Sectional drawing which shows the state which integrated the 1st thru | or 3rd circuit board in the bottom case. Sectional drawing of a battery accommodating part. Sectional drawing of the connection part of a bottom case, a top cover, and a keyboard apparatus. The perspective view which shows the right end part of a computer. Sectional drawing of the attaching part of the 1st connector cover which opens and closes a connector outlet. The perspective view of the computer which shows the state which rotated the 2nd connector cover to the open position. The perspective view of the computer which shows the state which moved the 2nd connector cover to the accommodation position. The perspective view of the computer which shows the state which rotated the 2nd connector cover to the closed position. Sectional drawing of the state which inserted the 2nd connector cover in the cover accommodating part. (A) is a top view of the attachment part of the 2nd connector cover. (B) is a perspective view of the attachment part of the 2nd connector cover with respect to a bottom case. The perspective view which shows the state which connected the RGB adapter to the computer. The perspective view of a RGB adapter. The perspective view of the stopper which prevents the battery pack from popping out. (A) is a front view of a computer partially showing a state in which a battery pack is completely mounted in a battery housing part. (B) is a front view of the computer which shows the state which cancelled | released the lock | rock of the battery pack in a partial cross section. The front view of the computer which shows the state which pulls out a battery pack from a battery accommodating part in a partial cross section. The perspective view which shows the state which rotated the support leg to the use position. The perspective view which shows the state which rotated the support leg to the storing position. The top view which looked at the latter half part of the top cover from the inner side of the housing | casing. FIG. 27 is a side view of a computer showing a section taken along line AA in FIG. 26. The perspective view of the computer which shows the state which removed the cover from the base unit. The perspective view which expands and shows the operation button periphery on a hand-placement part. Sectional drawing around the operation button. The perspective view which expands and shows the icon periphery of a top cover. Sectional drawing of the attachment part of an icon. The perspective view of a diode board | substrate. Sectional drawing of the state in which the power switch is turned ON. Sectional drawing of the state in which the power switch is turned off. The perspective view of the state which connected the external unit to the computer. The side view of the state which connected the external unit to the computer. The perspective view of an external unit. An exploded perspective view of the external unit Sectional drawing of an external unit. The rear view of an external unit. The perspective view of the external unit of the state which removed the upper case. The perspective view of a connector unit. The perspective view of the connector unit of the state which rotated the operation lever to the connection position. The perspective view of the connector unit of the state which rotated the operation lever to the cancellation | release position. Sectional drawing of the connector unit of the state which rotated the operation lever to the cancellation | release position. The side view which shows the state by which the engaging nail was caught by the computer in a partial cross section. The side view of the external unit which shows the attachment part of a guide member in a cross section. Sectional drawing which shows the state in which the guide member was caught by the computer.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 3 ... Case, 4 ... Bottom case, 5 ... Top cover, 7 ... Keyboard mounting part (keyboard mounting port), 8a ... 2nd engaging part (notch), 10 ... 2nd attaching part (mounting recessed part) , 24 ... Circuit board (first circuit board), 164 ... Conducting plate, 165 ... Keyboard device, 170 ... Shield plate (first shield plate), 171 ... First engaging portion (first engaging piece) , 172... First mounting portion (mounting piece), 174... Screw, 181.

Claims (7)

A conductive housing that houses a circuit board and has a bottom case and a top cover;
A keyboard mounting portion provided on the top cover of the housing;
A keyboard device that is detachably installed on the keyboard mounting portion and has a shield plate on the back surface;
A conductive plate provided between the keyboard mounting portion and the keyboard device and electrically connected to the housing;
The shield plate of the keyboard device is in contact with the conductive plate when the keyboard device is installed in the keyboard mounting portion, and is electrically connected to the housing through the conductive plate. Processing equipment.   2. The circuit board according to claim 1, wherein the circuit board has a ground wiring pattern, the conductive plate is electrically connected to the wiring pattern, and the shield plate covers the circuit board from above. An information processing apparatus characterized by that.   2. The information processing apparatus according to claim 1, wherein the keyboard device is fixed to the keyboard mounting portion via a screw, and the shield plate is pressed against the conductive plate by the fixing. A conductive case having a bottom case and a top cover coupled to the bottom case and provided with a keyboard mounting portion;
A circuit board housed in the housing;
A conductive plate provided in the keyboard mounting portion and electrically connected to the housing;
A keyboard device that is detachably installed on the keyboard mounting portion and has a shield plate on the back surface;
The keyboard device has a front edge portion and a rear edge portion located on the opposite side of the front edge portion, and a first engagement portion is provided on one of the front edge portion and the rear edge portion. In addition, a first attachment portion is provided on the other side,
The top cover is mounted with a second engagement portion in which the first engagement portion of the keyboard device is detachably engaged with the keyboard mounting portion, and a first attachment portion of the keyboard device. A second attachment portion,
The keyboard device is inserted into the keyboard mounting portion from above the housing in an oblique posture with the first engagement portion at the top , whereby the first engagement portion is inserted into the second engagement portion. to then engage, further said first mounting portion is fixed to the housing by screws to said second attachment portion, with the housing shield plate of the keyboard apparatus through the conductive plate Conducted ,
The screwing portions of the first mounting portion and the second mounting portion are covered with a cover that is detachably provided on the top cover so as to extend along the keyboard mounting portion. Information processing apparatus.   5. The circuit board according to claim 4, wherein the circuit board has a ground wiring pattern, the conductive plate is electrically connected to the wiring pattern, and the shield plate covers the circuit board from above. An information processing apparatus characterized by that.   6. The shield plate according to claim 5, wherein the shield plate has a tongue piece extended to a position corresponding to the first attachment portion of the keyboard device, and the second attachment portion of the top cover is screwed with the screw. An information processing apparatus comprising: a conductive nut, wherein the nut is electrically connected to the wiring pattern, and the tongue piece is in contact with the nut.   7. The information processing apparatus according to claim 4, wherein the screw is inserted into the first mounting portion from above the housing. 8.

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