KR920005835B1 - Portable computer with detachable flat panel display unit - Google Patents

Abstract

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Description

Portable electronics with detachable flat panel display unit

1 is a front perspective view showing a display unit of a portable computer in a closed state in a main body to which the present invention is applied;

2 is a front perspective view of a portable computer showing the display unit in an open state.

3 is a perspective view of the top cover.

4 is a front perspective view of the portable computer shown with the display unit removed from the main body.

5 is an exploded enlarged view of a mounting portion of the display unit and the voltage conversion unit.

6 is a cross-sectional view taken along the line IV-IV of FIG.

7 is a perspective view of a slide guide unit.

8 is a plan view of a slide piece.

9 and 10 illustrate the operation of the slide piece shown in the slide guide unit.

11 is a cross-sectional view taken along the line IX-IX of FIG.

12 is a perspective view of a rotating shaft.

FIG. 13 is a diagram for explaining a state when the slide piece of FIG. 11 enters deeply into the display unit.

14 is a view showing another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

3, 63: main body 5: display unit

7: voltage conversion unit 9: base

11: top cover 13: keyboard

14 main power 17 plasma display

19: connection part 25: front upper part

27: upper center 29: upper back

37: setting surface 43: shaft hole

47: rotation axis 55: slide click

113: slide piece 115, 129: coil spring

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to portable electronic devices, such as laptop computers or word processors, and more particularly to portable electronic devices having detachable flat panel display units.

At present, a laptop-type portable computer or a portable word processor having a flat panel display unit and the like are in widespread use.

Among the laptop top portable electronic devices described above, portable electronic devices that can be detached from the main body are low voltage drive LCD units which are flat panel display units such as US 4,749,364. In portable electronic devices that can remove the display, a connector on the main body side for electrically connecting the main body and the LCD unit is provided in a socket rotatable with respect to the main body. When the LCD unit is mechanically connected as a socket, the LCD unit is rotatable between the position of covering the keyboard and the position when the operator operates according to the rotation operation of the socket. When the LCD unit is detached from the main body, the portable electronic device capable of detaching the display electrically connects the main body and the CRT display to enable display by the CRT. Therefore, a portable electronic device capable of detaching the display uses an LCD unit when carrying the main body frequently, and uses a CRT display for visual display with color display. The display becomes operational.

The portable electronic device capable of detaching the display having the structure of USp 4,749,364 has the following problems because the connector on the main body side is installed in a rotatable socket. In Fig. 1, the unnecessary rotatable socket when the LCD was originally removed remains in the main body after the LCD is removed. Becomes In FIG. 2, a signal cable for electrically connecting the connector and the CPU of the main body or a power cable for supplying power to the LCD unit from the main body needs to be disposed in the rotation axis between the socket and the main body, making manufacturing difficult during assembly do. In FIG. 3, a unit using a high power voltage of about 200V, such as a plasma display, is used as the flat panel display unit. The high power voltage is supplied through the connector in the socket, and there is a danger of electric shock if the operator accidentally touches the hand near the socket. In FIG. 4, when a high power voltage flat panel display unit is used, when a high voltage is supplied to the connector and the display unit can be detached, the high voltage is momentarily inputted to or disconnected from the display unit. To give a great electric shock.

The present invention has been devised to improve the above problems.

It is a first object of the present invention to provide an electronic device in which unnecessary parts are not left in the main body when the flat panel display unit is detached. Hereinafter, a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front perspective view of the portable computer shown with the display unit closed in the main body, and FIG. 2 is a front perspective view of the portable computer shown with the keyboard exposed by freezing the display unit.

The portable computer 1 is provided with the main body 3, the display unit 5, and the voltage conversion unit 7 which converts low voltage power supply into high voltage power supply. The main body 3 has a base 9 and an upper cover 11. The base 9 has a main power source 14 for supplying a keyboard 13 at its front portion and a low voltage power supply at its rear portion. The display unit 5 comprises a display 19 and a connection 19 for mechanically and rotatably maintaining the plasma display unit 5 for displaying the back 15 and the data on the upper cover 11 and the voltage conversion unit 7. A pair of latch clicks 21 for latching the unit 5 on the main body 3 and the main body 3 and the display when the display unit 5 is closed on the main body 3 as if the display unit 5 covers the keyboard 13. It has a side cover 23 for covering the gap which arises between the units 5.

3 is a perspective view of the top cover.

The upper cover 11 has a front 25, a central upper portion 27, and a rear upper portion 29. The front 25 is provided with a pair of latch grooves 31 for engaging the latch click 21 at the front end thereof, and an opening 33 for exposing the keyboard 13 at the center thereof. In the center upper portion 27, a connector hole 35 is formed in the center portion for exposing the connector on the main body side described later. A setting surface 37 for positioning the voltage conversion unit 7 is formed at the rear end of the center upper portion 27. When the voltage converting unit 7 is connected on the main body 3, the setting surface 37 is lower than the center upper part 27 so that the rear upper part 29 and the upper part of the voltage converting unit 7 form a substantially flat surface. It is being formed. In the upper portion of the rear surface 29, a screw hole 39 for fixing the voltage conversion unit 7 to the upper cover 11 is formed in the center portion thereof. When the display unit 5 is closed on the main body 1 to cover the keyboard 13, the rear upper part 29 so that the rear upper part 29 and the rear surface 15 of the display unit 5 form a substantially flat surface. Is formed higher than the central upper portion 27 and the front upper portion 25. A pair of shaft holes 43 are formed in the inner side surface 41 between the central upper portion 27 and the rear upper portion 29 for exposing the rotating shaft to be described later.

4 is a front perspective view of the portable computer shown with the display unit removed from the main body.

The connector 45 on the main body side for electrically connecting the main body 3 to the display unit 5 and the voltage conversion unit 7 is provided so as to be exposed from the connector hole 35. A rotating shaft 47 for rotating the display unit 5 between the first position covering the keyboard 13 and the second position for operating the portable computer 1 while looking at the plasma display 17 is respectively. It is provided so that it may expose from the shaft hole 43 of this.

5 is an enlarged exploded view of the vicinity of the mounting portion between the display unit and the voltage conversion unit.

The connecting portion 19 of the display unit 5 has a pair of outer side surfaces 49, a pair of inner side surfaces 51 and a front surface 53. Each outer side surface 49 is provided with a slide click 55 which engages with the rotation shaft 47 and mechanically connects the display unit 5 and the main body 3 to each other. Each inner side surface 51 is provided with a circular hole 57 for rotatably connecting the display unit 5 and the voltage conversion unit 7 to each other. A pair of L-shaped holes 59 are formed in the front surface 53. Each L-shape is connected to a slide click 55, the third position for engaging the rotary shaft 47 after the slide click 55 protrudes from the outer side 49, and the slide click 55 to the outer side. (49) A slide knob 61 is provided to slide between the fourth position for inserting it deeply and releasing engagement with the rotation shaft 47. The voltage converting unit 7 includes a unit support 63, a cylindrical cable doctor 65, a doctor support 67 connecting the cable doctor 65, and a main body 63, and a voltage converting unit 7. And a unit fixing part 71 in which a screw hole 69 for fixing to 11 is formed. The cable doctor 65 has a connector cover 75 which covers the side face 73 and the connector on the side of the voltage conversion unit 7 described later in pairs. Each side 73 has a cylindrical hinge portion 77. A circular hole 79 is formed in the hinge portion 77. A signal cable 81 for electrically connecting the CPU of the main body 3 and the plasma display 19 and a power cable 83 for supplying a voltage from the voltage converting unit 7 to the plasma display 19 are connected. Connected to the display unit 5, the connector on the voltage conversion unit 7 side, the display unit 5, and the unit body 63 through the hole 57 of the 19 and the hole 79 of the cable doctor 65. It is becoming.

6 is a cross-sectional view taken along the line IV-IV of FIG.

The connector 85 on the side of the voltage conversion unit 7 is fixed to the connector holder 87 via a screw 89. The connector holder 87 is fixed to the cable doctor 65 in a state of being pinched by the upper circumference 91 and the lower support 93 protruding from the inner wall of the cable doctor 65. The main body side connector 45 is supported by the connector holder 95. The connector holder 95 is fixed to the housing 99 in the base 9 via screws 97. The connector 85 and the connector 45 are connected in the connector hole 35. In the unit body 63 of the voltage conversion unit 7, the main power source 14, the power cable 101, the board 102, the signal-power cable 103, the connectors 45 and 85, the power cable 105 A substrate 107 having a converter circuit for converting a low voltage supplied through the circuit into a high voltage is provided. The high voltage power converted by the converter circuit is supplied to the plasma display 17 via a power cable. The signal from the CPU in the base 9 is supplied to the plasma display 17 through the substrate 102, the signal-power cable 103, the connectors 45 and 85, and the signal cable 81.

FIG. 7 is a perspective view of the slide guide unit provided in the connection portion of the display unit, and FIG. 8 is a plan view of the slide axis.

The slide guide unit 109 has a pair of slide shafts 113 having a unit body 11, a slide click 55 and a slide knob 61, and a force in the direction A in the drawing with respect to each slide shaft 113. It has a coil spring 115 for imparting a tensile force to apply. The unit main body 11 has a pair of spring fixing parts 117 for fixing one end of each coil spring 115, and a pair of L-shaped holes 119 are formed. Each slide shaft 113 has a spring fixing portion 121 for fixing the other end of the coil spring 115. Moreover, the rectangular hole 119 for operating the slide knob 61 in B direction is formed. The slide knob 61 is slidably attached to the rectangular hole 119.

9 and 10 are diagrams for explaining the operation of the slide axis of the slide guide unit.

9 shows the state when the slide click 55 projects from the outer side surface 49 of the connecting portion 19 to be engaged with the rotation shaft 47. In contrast to the force that increases the force of the coil spring 115 in the state of FIG. 9, when the slide knob 61 is moved in the arrow C direction, the slide piece 113 is moved to the slide piece guide 118 as shown in FIG. 10. Thus, moving in the direction of arrow D, coil spring 115 is compressed. FIG. 10 shows a state in which the slide click 55 is deeply inserted into the outer side surface 49 of the connecting portion 19 and the engagement between the slide click 55 and the rotation shaft 47 is released. In the state of FIG. 10, the slide piece 113 receives a force to increase the force in the direction of the arrow A by the action of the coil spring 115, but the slide knob 61 has a side wall of the L-shaped hole 119. By contacting 123, the operation in the arrow A direction of the slide piece 113 is regulated. When the slide knob 61 is operated in the direction of the arrow E, the slide piece 113 whose regulation is released is returned to the state of FIG. 9 by the action of the coil spring 115.

11 is a cross-sectional view taken along the line IX-IX of FIG.

When the restriction of the slide knob 61 is released, the slide click 55 protrudes from the outer side surface 49 of the connecting portion 19 and engages with the insertion hole 124 of the rotation shaft 47. By engaging this slide click 55 with the rotary shaft 47, the display unit 5 is mechanically connected to the main body 3, and also by the action of the rotary shaft 47, the keyboard 13 of the main body 3. ) And the second position for operating the portable computer 1 while looking at the plasma display 17 and the plasma display 17.

12 is a perspective view of the rotating shaft 47.

The rotating shaft 47 has a coil spring surrounding the outer side of the shaft holder 127 and the shaft main body 125 for fixing the shaft main body 125 with the insertion hole 124 and the rotating shaft 47 to the upper cover 11 ( 129 and a stopper 131 of the coil spring 129. By the action of the coil spring 129, the display unit 5 is fixed at an arbitrary position between the first position and the second position.

FIG. 13 is a view showing a state where the slide click 55 is deeply inserted into the outer side surface 49 of the connecting portion 19 in FIG.

In the state of FIG. 13, the engagement of the slide click 55 and the rotational shaft 47 is released, whereby the mechanical connection between the display unit 5 and the main body 3 is released, and the operator arrows the display unit 5. In the upward direction, the display unit 5 is detached from the main body. When the display unit 5 is raised in the arrow F direction, the connection between the connector 45 and the connector 85 is released, and the electrical connection between the display unit 5 and the main body 3 is also released.

Next, an operation method of the portable computer of the present embodiment will be described.

In the state of FIG. 1 and FIG. 2, the slide click 55 is inserted into the insertion hole 124 of the rotating shaft 47. As shown in FIG. Therefore, the slide click 55 and the rotating shaft 47 are engaged, and the display unit 5 is mechanically engaged with the main body 3. The connector 85 is connected to the connector 45, and the display unit 5 is electrically connected to the main body 3. The voltage conversion unit 7 is fixed to the upper cover 11 of the main body 3 by screws 16. In addition, in the state of FIG. 1, the latch click 21 is engaged with the opening 33. As shown in FIG.

In the state of FIG. 1, the display unit 5 is closed to cover the keyboard 13, and the portable computer 1 is shaped almost like an Atache case.

In FIG. 1, when the operator releases the latch click 21, the display unit 5 shown in FIG. 1 covers the keyboard 13 by the action of the rotation shaft 47. The display unit 5 is connected to the main body 3 and the voltage conversion unit 7 between the position of and the second position of operating the portable computer 1 while looking at the plasma display 17 shown in FIG. Is rotated against. The display unit 5 is set at an arbitrary angle between the first position and the second position by the action of the coil spring 129 of the rotation shaft 47.

In the state of FIG. 2, when the operator switches on the main power supply 14 of the main body 1, a low voltage of 5 volts is applied to each electronic component in the base 9 through the power supply cable 101 through the main power supply 14. Supplied. In addition, a low voltage of 5 volts is supplied to the converter circuit provided on the substrate 10 through the power cable 101, the signal-power cable 103, the connector 45, the connector 85, and the power cable 105. . The converter circuit converts a low voltage of 5 volts to a high voltage of 200 volts. The high voltage of 200 volts is supplied to the plasma display 17 via the power cable 83.

In the second state, when the operator slides the slide knob 61 from the third position shown in FIG. 9 to the fourth position shown in FIG. 10, the insertion hole 124 of the rotation shaft 47 is present. Slide click 55, which has been engaged with (), deeply enters the connecting portion 19, and the engagement of the slide click 55 with the rotation shaft 47 is released. The engagement between the slide click 55 and the rotation shaft 47 is released, thereby releasing the mechanical connection between the display unit 7 and the main body 3. When the operator releases the screw 16, the mechanical connection between the voltage conversion unit 7 and the main body 3 is released. After releasing the mechanical connection of the display unit 7 and the main body 3 and the mechanical connection of the voltage conversion unit 7 and the main body 3, the operator lifts the display unit 5 up, as shown in FIG. As shown, the display unit 5 and the voltage conversion unit 7 are released from the main body 3.

As shown in FIG. 4, when the display unit 5 and the voltage conversion unit 7 are removed, the connector of the CRT connector CRT provided at the rear end of the main body 3 is connected. 3) can be displayed on the CRT.

When attaching the display unit 5 and the voltage exchange unit 7 removed from the main body 3 to the main body 3, the operations described above may be performed in the reverse order.

In the portable computer of this embodiment, the main body does not have a movable part such as a rotary socket in a state where the display unit and the voltage conversion unit are removed. Therefore, it is excellent in portability when an operator carries with a main body in the state which removed the display unit and the voltage conversion unit. In addition, since there is no unnecessary protrusion such as a rotary socket, the clock when the operator performs CRT display using the main body with the display unit and the voltage conversion unit removed is good.

In the portable computer of this embodiment, a connector for electrically connecting the display unit and the main body is provided in a portion separate from the hinge portion of the display unit and the main body. Therefore, the shape of the hinge portion can be made small, so that a small portable computer can be realized.

In the portable computer of the present embodiment, a cable for electrically connecting the display unit and the main body is disposed at a portion other than the hinge portion. Since the shape of the hinge portion can be reduced and the size of the portion on which the cable is arranged can be arbitrarily selected, the manufacturability of the portable computer is improved.

In the portable computer of this embodiment, a voltage conversion unit for converting a low voltage into a high voltage is provided on the display unit side rather than the main body side. Therefore, since high voltage is not applied to the connector, no electric shock is applied to the main body or the display unit when attaching and detaching the display unit. In addition, there is no fear of electric shock even when the operator accidentally contacts the connector.

Therefore, the present invention is not limited to only the above embodiments. For example, as shown in Fig. 14, the same effect can be obtained by providing the rotation shaft 47 on the display unit 5 side and the slide click 55 on the main body 3 side. In addition, the same effect can be obtained even if the voltage exchange unit 7 is provided in the display unit 5.

Claims (20)

A main body having a top cover having a connector hole, a keyboard, a main power supply, and a first connector provided in the connector hole and electrically connected to the main power supply; A display unit having a second connector electrically and mechanically connected to the first connector and a flat panel display driven by a voltage supplied from the main power supply through the first and second connectors; Rotating means for rotating the flat panel display with respect to the main body between a first position covering the keyboard and a second position for operating the keyboard while looking at the flat panel display; Engaging means for rotatably connecting the display unit to the main body in engagement with the rotation means in a third position, releasing the engagement in the fourth position, and providing connecting means for releasing the mechanical connection. Electronic device, characterized in that. The electronic device of claim 1 wherein said display unit is rotatable relative to said flat panel display and includes connector support means for supporting said second connector. The electronic device according to claim 2, wherein the rotating means is provided in the main body, and the connecting means is installed at a position opposite to the rotating means of the display unit. 4. The rotating means according to claim 3, wherein said rotating means has an insertion hole in a surface opposite said connecting means, said connecting means projecting in a surface opposite said rotating means of said display unit at said third position thereon. And an engaging means inserted into the insertion hole and engaged with the rotating means, the engaging means for releasing the engagement deep into the opposing surface of the display unit at the position 4; . 5. An electronic device according to claim 4, wherein said connecting means includes moving means for operating said engaging means thereon between said third position and said fourth position. 5. An electronic device as claimed in claim 4, wherein said connecting means has means for applying a force thereon to generate said tensile force in said engagement means in the direction of said insertion hole. 7. An electronic device as claimed in claim 6, wherein said connecting means includes a restricting means for holding said engaging means in said fourth position opposite to a force of said means for applying said force thereon. The pair of fastening means is provided on both sides of the connector supporting means, and the rotating means is provided in a pair opposite to each of the fastening means of the main body. Electronics. The front cover according to claim 8, wherein the upper cover is provided behind the front end and the front end, and has a front upper part having an opening to which the keyboard is installed, and a rear upper part of the front upper part, and the connector A central upper portion having a top portion, and a rear upper portion formed behind the central upper portion and formed higher than the central upper portion, and the pair of rotating means are respectively provided, and having a pair of side surfaces for connecting the central upper portion and the upper rear portion; And the flat panel display is opposed to an upper end positioned above the front end at the first position thereon, a bottom portion having the connector supporting means and the connecting means, and the pair of rotating means, respectively. And a pair of side surfaces of the pair of fastening means, each of which reads out and enters deeply. Group. The electronic device according to claim 3, wherein the rotating means is provided in the display unit, and the connecting means is installed at a position opposite to the rotating means of the main body. A main body having a keyboard, a main power supply for supplying a low voltage, and a first connector electrically connected to the main power supply; A second connector electrically and mechanically connected to the first connector, voltage conversion means for receiving the voltage through the first and second connectors, converting the voltage into a high voltage, and supplying the high voltage; And a display unit having a flat panel display driven by the high voltage. 12. The apparatus of claim 11, further comprising: rotating means for rotating the flat panel display relative to the body between a first position covering the keyboard and a second position for operating the upper keyboard while viewing the flat panel display; ; Engaging means for engaging the rotatable means in a third position and mechanically rotatablely connecting the flat panel display to the body, releasing the engagement and disengaging the mechanical connection in a fourth position. Electronic device characterized in that. 13. The voltage converting unit according to claim 12, wherein the display unit has the second connector thereon and is fixed to the connector support and the connector support that is rotatable with respect to the flat panel display and has the voltage converting means. And the main body has an upper cover having a connector hole on which the first connector is installed and a setting portion for setting the voltage conversion unit. The top cover according to claim 13, wherein the top cover has a front top and a front top having an opening to be installed behind the front end and the keyboard installed thereon, and behind the front top and the connector hole mounted thereon. And a central upper portion having a laid portion, a rear upper portion installed behind the central upper portion and formed higher than the upper central portion, and the rotating means installed, and having a side surface for connecting the upper central portion and the upper rear portion. Electronic equipment. The electronic device according to claim 14, wherein said connector hole is provided in front of said set portion of said top cover. 15. The method of claim 14, wherein the connector support portion is a first power cable for electrically connecting the first connector and the voltage conversion means, and a second for electrically connecting the voltage conversion means and the flat panel display. And a cable arrangement portion on which a power cable of 7 and a signal cable for electrically connecting the second connector and the flat panel display are arranged. The electronic device according to claim 15, wherein the setting portion is provided at a position lower than the upper portion of the front. 15. The electronic device according to claim 14, further comprising fixing means for fixing the voltage conversion unit on the rear surface thereof. 17. The display device according to claim 16, wherein the connector support portion has cylindrical display unit connection portions at both ends, and the display unit is rotatable on each of the display connection portions, and the second power cable and the signal cable are disposed. An electronic device comprising a pair of circular openings. The electronic apparatus according to claim 13, wherein the display unit has a pair of the connecting means at both ends of the connector support, and the rotating means is installed at a position of the main body opposite to each of the connecting means.

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