JPH0588783A - Compact information processor - Google Patents

Abstract

(57) [Abstract] [Purpose] The objective is to provide a space-saving information processing device. In a small-sized information processing device including a device body 10, a display unit 20, and an input unit 40, the device body 10 includes a processor unit 100 that processes data.
0, a display control unit 2000 that performs display control, and an I / O
I / O control unit 3000 for controlling input / output to / from the device
The printed circuit board 120 includes a first printed circuit board 120 on which is mounted and a housing 19 that houses the printed circuit board 120.
Of the I / O control unit 3000 are arranged on the second end side, and the display control unit 2000 is arranged between them. Are arranged. [Effect] It is possible to effectively use the office space and improve the office environment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing device such as a personal computer or a workstation for performing office work in office work, and more particularly to a space-saving type small information processing device.

[0002]

2. Description of the Related Art At present, offices are required to improve the work environment in the background of quality of life and other factors.
Aiming to transition to a new office format. For example,
The daily necessities section of the Ministry of International Trade and Industry considers the appearance of the new office to be "a place for human life", "a place for information centering", "a place for discovering corporate culture", and "a place for internationalization". (Ministry of International Trade and Industry, Consumer Goods Division: New office guidelines; Sho 6
3-4). As indicated by this guideline, recent office plans focus on creating functional and comfortable living spaces that bring out creativity and allow work to proceed efficiently. In particular,
Effective use of space is required to create a comfortable office. In order to meet such demands, it is necessary to reexamine information processing devices / computer devices such as workstations, which are often installed in offices to support office work.

As a typical configuration of the information processing apparatus / computer equipment such as the conventional work station, there is US Pat. No. 4,571,456 (Japanese Patent Laid-Open No. 59-91524) by Grid Corporation.

[0004]

However, in the above-mentioned prior art, the installation area for storage during operation is constant and has a vertically long structure, and the improvement of office productivity with emphasis on processing performance / function is the first priority. Was being considered. In addition, the size of the keyboard is reduced in order to reduce the size, and the user interface and usability are sacrificed.

By the way, in this type of information processing apparatus, it is required that the main body be as small as possible, and that the keyboard and the display unit are as easy to operate and easy to see as possible.

However, in the conventional information processing apparatus, a small-sized information processing apparatus is endeavored to be miniaturized infinitely, and performance and usability tend to be sacrificed. On the other hand, the desktop type has the highest performance, and is not considered for downsizing.

[0007] Therefore, the above-mentioned prior art is related to the effective use of office space, environment, safety, and operability for the user. Was sacrificed and had a point contrary to the goal of creating a new office environment.

An object of the present invention is to provide an information processing apparatus capable of ensuring a sufficient cooling capacity while saving space and mounting circuit elements such as a processor, a memory and a control circuit IC at a high density. To provide.

[0009]

The present invention has been made to achieve the above object, and according to one aspect thereof, in a small-sized information processing apparatus including a device main body, a display unit, and an input unit. The apparatus main body includes a processor unit for processing data, a display control unit for display control, and an I / O control unit for input / output control for an I / O device. A printed circuit board is provided with a housing for accommodating the printed circuit board, a circuit element forming a processor section is arranged on a first end side of the printed circuit board, and a circuit element forming an I / O control section is formed on a second end side. Is provided, and a circuit element forming a display control unit is provided between them.

In the printed circuit board, the first and second ends are located in the left-right direction when the housing is viewed from the front.
It can be housed in a housing. Also, the printed circuit board may be arranged along the bottom surface of the housing.

The processor unit has a central processing unit and a main memory. The central processing unit and the main memory are arranged such that the central processing unit is on the rear side and the main memory is on the front side when the housing is viewed from the front. , Can be placed on a printed circuit board.

The display controller has at least a drawing controller, a frame memory and a font memory, and the frame memory and the font memory can be arranged on the front side of the printed circuit board.

The present invention further has a plurality of connectors for making connections inside the main body and connections outside the main body, and these connectors are first and second connectors which are predetermined on the printed circuit board. It can be arranged in the arrangement area.

The first connector arrangement area may be an area along a side of the printed circuit board which is arranged on the rear side of the housing.

[0015]

In the apparatus main body, a processor section for processing data, a display control section for display control, and an I / O control section for controlling input / output to / from the I / O device are mounted on one printed circuit board. There is. As a result, the number of printed circuit boards can be reduced, and the housing for housing the printed circuit boards can be made thinner. In addition, by arranging the printed circuit board in a horizontally long shape, the housing that accommodates the printed circuit board can also be made horizontally long, and the depth of the main body can be reduced. Therefore, by adjusting the lateral size of the keyboard to this, it is not necessary to forcibly reduce the size of the keys, and the usability does not deteriorate.

On the printed circuit board, the circuit elements forming the processor section are arranged on the first end side, and the circuit elements forming the I / O control section are arranged on the second end side. The circuit elements that form the display control unit are arranged between them. As a result, the densities of wirings such as buses connecting them can be made uniform, and higher density can be achieved.

Further, by arranging the circuit elements constituting the processor section on one end side of the printed circuit board, it is possible to cool them with fresh air from the outside, so that the cooling efficiency is improved. Therefore, it is possible to sufficiently cope with the increase in heat generated due to the high density.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

The following embodiments are examples in which the compact information processing apparatus of the present invention is applied to a space-saving workstation. Of course, the present invention is not limited to this. It should be noted that, in the following, specific numerical values for the size of the device and the like are illustrated for easier understanding of the description, but the present invention is not limited to this.

FIG. 1 shows an example of the overall external appearance of a space-saving workstation which is an embodiment of the present invention.

This device is a space-saving desk type in which the keyboard can be separated, and is mainly composed of the display unit 20 and the main body 1.
0, a keyboard unit 40.

The main body 10 has a housing 19, and the housing 1
As will be described later, a processor that executes information processing, a hard disk drive, a floppy disk drive, a power supply unit, and the like are stored in the storage unit 9. A step portion 10 a is provided on the front surface side (front surface of the apparatus) of the housing 19. The housing 19 is configured such that the step area of the plane parallel to the installation surface during use becomes smaller in the order of the lower portion 11, the intermediate portion 12, and the upper portion 13 in accordance with the step portion 10a.

On the front surface of the housing 19, a keyboard main body fixing step 350 projects forward. Further, from the middle portion 12 and the lower portion 11 of the front surface portion of the housing 19,
SI, which is a memory module with a small mounting area
MM (single in-line memory module) insertion part 7
0 is provided. On the other hand, on one side surface of the housing 19, a disc insertion opening 50a of the 3.5-inch floppy disk drive 50 is provided in the middle portion 12, and the upper portion 13
In addition, a power switch 60 is provided.

A frame 21 is provided on one surface of the display unit 20.
A liquid crystal display 30 is provided surrounded by. The liquid crystal display 30 includes, for example, a TFT (Thin-Fi).
A lm-Transistor) drive type liquid crystal display is used. The liquid crystal display 30 of the present embodiment has a multi-tone structure capable of changing the gradation in eight steps. In addition, the liquid crystal display 30 has a structure that is illuminated by a backlight. The backlight has a function of being turned off to save power when no operation is performed for a certain period of time.

The frame 21 has a pilot portion 22 indicating that the main body is in a power-on state, and a surface (first surface / display surface) on which the liquid crystal display of the display unit 20 is provided.
And the surface not provided (second surface / non-display surface), respectively, are symmetrically provided. By the way, when the power is on and the backlight is off, there is a possibility that the power is turned off and the power switch is turned off or the power plug is disconnected from the outlet. Depending on the operating system, it may be necessary to complete the procedure according to a certain procedure. In such a system, when the power is turned off, the data in the main memory may be destroyed despite the non-termination. Therefore, in this embodiment, the pilot portion 22 is provided on the first surface of the display unit 20. Further, when the pilot portion 22 is further provided on the second surface, the display unit 2
It can be confirmed that the power is on even when 0 is tilted to the front of the main body 10 so that the liquid crystal display cannot be seen from the front.

As shown in FIG. 1, the pilot portion 22 is provided on the frame 21 near the corner portion on the upper right side when viewed from the front side of the liquid crystal display 30. In particular, it is provided near the outer periphery of the frame 21. By providing the liquid crystal display 30 in such a position, the user can
It is hard to be anxious when gazing at.

The pilot portion 22 is formed by providing a small opening in the frame 21 and accommodating a light emitting body inside the display unit 20. The luminous body is, for example, FIG.
As shown in FIG. 3, the light guide member 24 is substantially T-shaped, and the light emitting diode 23 is attached to the light guide member 24.

The pin 23a of the light emitting diode 23 is fixed to the printed circuit board 20a in the display unit 20,
It is connected to a circuit conductor (not shown) on the printed circuit board 20a.

As shown in FIG. 24 (B), the light guide member 24 is divided into a light emitting diode housing portion 24a, a reflecting portion 24b for laterally dividing the light emitted from the light emitting diode 23, and a reflecting portion 24b. A guide portion 24c for guiding the light and a radiation end 24d for radiating the guided light to the outside.
And 24e. Radiating ends 24d and 24e
The end faces of the display unit 20 appear on the first and second faces of the display unit 20, respectively.

As shown in FIG. 24C, the radiating end 24d is formed so that its end face becomes a flat surface. The radiating end 24d is inserted into the hole a provided in the frame 21 of the display unit 20 such that the surface position of the radiating end 24d is aligned with the surface 21b of the frame 21. On the other hand, the radiating end 24e is formed such that its end face is a curved surface, as shown in FIG. The radiating end 24e is inserted into a hole 20b provided in the non-display surface side cover 20a of the display unit 20. Hole 20
A step portion 20d having a large diameter is provided in the opening portion of b on the outer surface 20c side of the display unit 20. Radiant end 2
4e is inserted into the space inside the step portion 20d, and is positioned such that its tip end is in surface alignment with the outer surface 20c of the display unit 20.

Since the end face of the radiating end 24d is formed flat, the radiated light from the radiating end 24d is radiated in a state where the directivity is relatively strong. As a result, the pilot unit 22 can be seen by the eyes of the operator who is gazing at the liquid crystal display 30.
It prevents the light from entering and it becomes a visual noise. On the other hand, since the display surface is set upright when used, it can be easily visually recognized even with light having a strong directivity. Further, when not in use, even when the entire display unit is viewed from a slightly distant position, the directivity is strong, so that the radiated energy reaches a distance and the pilot unit 2
The light of 2 is easily visible.

Since the radiation end 24e has a curved surface,
Synchrotron radiation is easy to diffuse. Since the display unit 20 is provided with the step portion 20d, the diffused and emitted light travels in a wide range. By the way, the pilot portion 22 on the non-display surface side of the display unit 20 is necessary for informing whether or not the power is on when the display unit 20 is tilted forward of the main body 10. In this state, the non-display surface of the display unit 20 is generally viewed from an oblique direction. In this embodiment, the radiation end 24
Since the emitted light from e is diffused and emitted, the lighting state of the pilot portion 22 can be visually recognized from any direction.

Further, the surface color and its brightness are set so that the surface of the frame 21 has the same brightness and color as any of the multiple gradations of the liquid crystal display 30. .. In this embodiment, a gray color is selected, and the brightness is selected so that the reflectance is 26.1%. When the reflectance is in the range of 20 to 50%, even if the user is heading toward the display for a long time, the difference in brightness between the liquid crystal display 30 and its surroundings is small, and therefore the screen does not feel a sense of discomfort with the surroundings. It also reduces eye fatigue.

In the above embodiment, one light emitting diode is used to emit light from the front and back pilot portions of the display unit. However, it is also possible to configure the pilot unit by using different light emitting bodies for the display surface and the non-display surface.

The keyboard unit 40 is separable in consideration of operability. Further, in consideration of storability, for example, as shown in FIG. 6, it can be integrally connected to the main body 10.

Next, the internal structure of the main body 10 of the workstation of this embodiment will be described.

FIG. 2 shows the internal structure of the main body of this embodiment.
Note that FIG. 2 schematically shows the configuration, and the actual arrangement is shown in FIGS. 25 and 26.

In the workstation of this embodiment, a printed circuit board (base board) 120 is provided with a processor section 1000 for processing data and the like, and a display unit 20.
And a display control unit 2000 for controlling display of
I / O control unit 30 for controlling input / output of O equipment
00, a system bus 4000 connecting them, various connectors 5001 to 5016, and a reset switch 6
And 000 are provided.

The processor section 1000 includes a central processing unit (CPU) 1100 for executing calculations and the like, and a CPU 1100.
Processor bus 1110 connected to, for example 8MB
A main memory 1300 having a storage capacity of, a processor bus 1110, a memory bus 1310 and a system bus 4
000 connected to the bus control and main memory 1300
Bus control / main memory control unit 120 for controlling input / output of
With 0 and. The memory bus 1310 is connected to the additional memory connector 5001.

The display controller 2000 includes a drawing bus 2400 for transferring image data and a system bus 4000.
And a drawing controller 2100 that is connected to the drawing bus 2400 to generate image data, a frame memory 2200 that stores the image data from the drawing bus 2400, and a font ROM (Read Only Memor) that stores the character font.
y) 2300. The keyboard 40 is connected to the drawing control unit 2100 via the keyboard connector 5013, and accepts instructions, data input, etc. from the keyboard. A mouse 49 can be connected to the keyboard 40. The output side of the frame memory 2200 is connected to the liquid crystal display 30 via the liquid crystal connector 5012. Driving power is supplied to the liquid crystal display 30 via the liquid crystal power supply connector 5011.

The I / O control unit 3000 uses the system bus 4
I / O data processing unit 3100, an Ethernet controller 3200, a floppy disk controller 3300, and a calendar unit 3400. The I / O data processing unit 3100 includes an HD (hard disk) control unit 3110 that controls input and output of data to and from a hard disk, and a floppy disk (FD).
Or F that controls the input / output of data to / from the printer
D / printer controller 3120 and serial connector 50
Serial i for controlling input / output of data via 04
/ F (interface) control unit 3130. The I / O control unit 3000 also controls the operations of the Ethernet controller 3200 connected via the Ethernet connector 5005 and the floppy disk drive 50 connected via the FD connector 5006.
A D controller 3300, a printer connector 5007 for connecting a printer (not shown), a calendar 3400 for generating and outputting calendar data including year, month, day and time, and an HD connector 5009 for connecting a hard disk drive 80. And SCSI (Smal
lConputer System Interface) connector 5008 is connected. Drive power is supplied to the hard disk drive 80 via a hard disk power connector 5010.

In addition to this, PK extension connectors 5002 and 5003 for connecting the optional package 100
And electric power for driving the exhaust heat fan 130 is supplied F
An AN connector 5014, a power supply connector 5015 for connecting to the power supply unit 130 and receiving power supply,
And an LED connector 5016 for driving the light emitting diode 23 of the pilot section 22.

Next, the arrangement relationship of each part on the base board 120 will be described. In addition, the planar layout relationship is
It is schematically shown in FIG. 25, and the vertical arrangement relationship is schematically shown in FIG.

In FIG. 25, on the base board 120,
The processor section 1000 is provided at one end side thereof, the I / O control section 3000 is provided at the other end side thereof, and the display control section 200 is provided therebetween.
0 is placed. Since the processor unit 1000 has a CPU 1100 that generates a large amount of heat, this CPU 11
In order to sufficiently cool 00, it is positioned on the upstream side of the cooling air taken into the housing 19 from the outside. For example, as shown in FIG. 7, the CPU 110 is provided near the air intake 240.
It is arranged so that 0 is located.

Further, in this embodiment, the base board 120
Various connectors are separately arranged in two regions arranged side by side along the longitudinal direction of the base board 120. The first area (L-type connector group area) A is the base board 1
It is one side along the longitudinal direction of 20 and the peripheral edge of the side located on the rear side (upper side in FIG. 25) of the housing 19. The second area (vertical connector group area) B is an area along a position where a step portion from the lower portion 11 to the intermediate portion 12 is provided as shown in FIG. 1, that is, slightly forward of the center portion of the base board 120. Is a strip-shaped region along the longitudinal direction at the position.

In the first area A, from the left side, a PK expansion connector 5002, a SCSI connector 5008, an Ethernet connector 5005, a serial connector 5004, a printer connector 5007 and a PK expansion connector 500.
3 is provided. These connectors are, for example, as shown in FIG. 23, a mounting surface on the base board 120,
A so-called L, which is arranged in a vertical relationship with an end face for connecting a connector plug (not shown) on the cable side
A type (or F type) connector is used. For example, in the L-shaped connector group area A of the base board 120, the PK expansion connector 5002 has its mounting surface 5002a opposed to the base board component surface 120a on the component surface 120a of the base board 120, and its connection end surface. Base board 1 with 5002b facing the rear of the main unit
Placed on 20. Also, for example, the SCSI connector 5
008 has its mounting surface 5008a opposed to the baseboard component surface 120a, and the connecting end surface 50.
08b is placed on the base board 120 with the main body 08b facing the rear of the main body and being fixed to the fixing member 5100. In addition, the electrical connection is made by connecting those pins, for example, 5008c, to through holes (not shown) of the base board 120.
This is performed by inserting 5002c, protruding the tip toward the solder surface 120b side of the base board 120, and soldering it.

The rear peripheral edge of the base board 120 is
The central part thereof has a convex shape protruding rearward. In this convex portion 121, SC
SI connector 5008, Ethernet connector 500
5, a serial connector 5004 and a printer connector 5007 are arranged. Also, in the part that does not protrude,
PK extension connectors 5002 and 5003 are provided. By doing so, as shown in FIG. 9, a SCSI connector 5008, an Ethernet connector 5005, and a serial connector 5004, which need to be connected to the outside, are required.
And the printer connector 5007 to the baseboard 12
While fixed to 0, their ends can be exposed directly on the rear surface of the housing 19. On the other hand, the housing 19
P that internally connects to the optional package 100
The K expansion connectors 5002 and 5003 are usually, for example,
As shown in FIG. 9, it is covered with a cover 340. Cover 3
The screw 40 is detachably fixed with a screw 15.

The optional package 100 is provided with a cover 440 provided on the side surface of the housing 19 shown in FIG.
Is removed and the main body 10 is attached and detached from this portion. Further, as shown in FIG. 8, the optional package cable 220 is connected at this portion. The optional package 100 includes, for example, a functional expansion such as connection with a network or another computer, a functional expansion for executing a specific application, and the like.

Further, in the second area B, two additional memory connectors 5001 and 5001 are arranged in the central portion. The area on the left side is the power connector 5015, F
AN power connector 5014 and keyboard connector 5
013 is arranged. In the right area, HD
A connector 5009, an FD connector 5006, a liquid crystal connector 5012, an HD power supply connector 5010, an LED connector 5016, and a liquid crystal power supply connector 5011 are arranged. As these connectors, for example, as shown in FIG. 23, connectors in which a mounting surface on the base board 120 and an end surface for connection are arranged in parallel are used. For example, in the vertical connector group region B of the base board 120, the additional memory connector 5001 is mounted on the component surface 120a of the base board 120 and the mounting surface 500 thereof.
1a is placed on the base board 120 in a state in which 1a is opposed to the base board component surface 120a and the connecting end surface 5001b is directed upward. The electrical connection is the same as in the case of the L-type connector described above.

The base board 120 has a space of the intermediate portion 12 above the rear side of the position where the additional memory connector 5001 is provided. Therefore, the CPU 110
0, it is possible to dispose a relatively thick circuit element element such as various connectors. On the other hand, the thickness of the space is small on the front side of the position where the additional memory connector 5001 is provided. Therefore, memory elements such as the main memory 1300, the font ROM 2300, the frame memory 2200, and elements having a relatively small thickness such as the reset switch 6000 are arranged. These memory elements are, in this embodiment, the component areas 122 and 12 shown in FIG.
Implemented in 3. That is, it is mounted on the component surface 120a and the solder surface 120b of the base board 120,
It has a double-sided mounting structure. The main memory 1300,
Of the memory elements such as the font ROM 2300 and the frame memory 2200, some or all of the elements may be mounted only in the component area 122.

Further, in this embodiment, the main memory 1300 is arranged at the corner portion of the base board 120. Generally, in this type of board, since there are few wirings at the corners, a large number of wirings associated with the main memory 1300 can be easily arranged, and other wirings are less likely to become an obstacle.

As shown in FIG. 25, the processor bus 1110 and the system bus 4000 are arranged in the area rearward of the position where the additional memory connector 5001 is provided, in the longitudinal direction of the base board 120 (in the left-right direction of the apparatus housing 19). )
It is installed along. In addition, the additional memory connector 500
In the area in front of the position where 1 is provided, the drawing bus 24
00 are provided along the longitudinal direction of the base board 120 (the left-right direction of the apparatus housing 19). Further, in the area on the left side of the position where the additional memory connector 5001 is provided, the CP
A memory bus 1310 is provided between the U1100 and the bus control / main memory control unit 1200 and the main memory 1300. Note that these buses schematically show the wiring direction, and the actual wiring is complicated. The wiring of the bus or the like can be allocated by using a known automatic wiring algorithm when the base board 120 is provided with a multi-layer structure.

The base board 120 is constructed by laminating a plurality of layers in which a conductor such as copper is provided on a dielectric such as polyimide. There are various methods for laminating, and any method may be used. For example, a method of sequentially laminating dielectric sheets provided with necessary conductors in advance can be adopted. As shown in FIG. 26, the base board 120 of the present embodiment is, from the lower surface side, A layer (solder surface), B layer, C layer, D layer (ground layer), E layer (power supply layer), F layer, The G layer and the H layer (component surface) are laminated in this order. Where A, B, C,
The arrows shown in the F, G, and H layers schematically indicate the wiring directions in the respective layers. That is, the layers A and H are wiring in the Y-axis direction, and the layers B and G are
Layers indicate wirings in the X-axis direction, and layers C and F indicate wirings in diagonal directions intersecting with each other. With such a wiring structure, the areas parallel to each other in which crosstalk is likely to occur are reduced, and the A layer and the B layer are formed.
Crosstalk between the layer and the C layer can be suppressed. Similarly, crosstalk between the G layer and the H layer and the F layer can be suppressed. Further, with such a wiring structure, it is sufficient to dispose one set of the power supply layer and the ground layer between the wiring layers that form one set of the X, Y and diagonal wirings. When the wiring layers are formed only in the X-axis direction and the Y-axis direction and do not include diagonal wiring layers, a power supply layer or a ground layer should be sandwiched between each wiring layer to suppress crosstalk. Is preferred. Further, when the wiring layer in the X-axis direction or the wiring layer in the Y-axis direction is adjacent to the wiring layer in which the wirings in the same direction are provided, the wiring length of the portion in which the adjacent wirings are parallel to each other is obtained. The wiring route may be determined so that this is less than the predetermined length. This also makes it possible to suppress crosstalk.

FIG. 27 schematically shows an example of the diagonal wiring. The diagonal wiring is a wiring grid 901 that follows the X-axis and the Y-axis.
Is virtually considered, and the wiring route is determined on this wiring grid 901. The procedure is as follows.
1, necessary component terminal hole 902, through hole 903,
The position of the connection terminal 904 is determined and its coordinates are registered. Next, the starting coordinates and the destination coordinates are determined. Then, the wiring route is searched. In the search for the wiring route, first, it is determined whether or not there is a failure in the direction of 45 degrees from the starting grid point to the direction of the target grid point, based on the coordinate data registered in advance. For example, determine the route of the diagonal wiring. This is sequentially performed for each grid point. On the other hand, if there is a failure, the detour routes in the X and Y directions are searched for, and the shortest route is determined as the wiring route. Thereafter, this is repeated to determine the wiring route to the target grid point.

Base board 1 thus formed
An example of 20 is shown in FIG. 29 together with dimensions.

Next, the internal mounting structure of the main body 10 will be described with a design concept.

The mounting structure of the entire inside is shown in FIG.

In this embodiment, the inside of the housing is mounted from the following three viewpoints.

(1) Weight Distribution (Balance) and Compact Mounting FIG. 4 shows the power supply unit 110 arranged in the main body 10.
It shows the arrangement status of the above. FIG. 5 shows the main body 10.
It is a mounting view showing a structure seen through from the side.

FIG. 6 is an external side view of the apparatus housing.

The base board 120 on which the electronic parts / semiconductor parts are mounted is arranged on the bottom surface of the housing. In this case,
The board 120 is arranged to be parallel to the desktop installation surface of the housing.

The hard disk drive 80, the floppy disk drive 50, and the power supply unit 110, which account for most of the weight of this apparatus, are arranged on the rear surface of the housing, and the hard disk drive 80 and the floppy disk drive 5 are arranged.
0 means a position below the power supply unit 110. In this case, the hard disk drive 80 is arranged on the left side surface of the main body 10 and the floppy disk drive 50 is arranged on the right side surface of the case. The reason why the floppy disk drive 50 is arranged on the right side is that many people are right-handed.

Further, the heat exhaust fan 130 is arranged on the side surface of the housing on the side of the power supply unit 110. Furthermore, the hard disk drive 80 and the floppy disk drive 5
The option package 100 is attached to the lower space of 0 so as to be parallel to the base board 120.

Here, the optional package 100 is
As shown in FIG. 23, the component surface 1 on which the component is mounted
00a is arranged so as to face the component surface 120a of the base board 120. Regarding the arrangement interval, for example, on the side of the base board 120, the CPU 1100 is assumed to have a height of about 17 mm, while the height of the component region 101 of the option package 100 is assumed to be about 8 mm, and a slight gap is taken into consideration. Is about 27 mm. With this configuration, it is not necessary to prepare a special space even when mounting a tall component. Also,
Base board 120 and optional package 100
A space S for passing the cooling air can be secured between and, and the cooling efficiency is improved. Moreover, not only the components on the base board 120 but also the components mounted on the option package 100 can be cooled by the same cooling air.

The SIMM board of the additional memory 90 is attached to the front side of the hard disk drive 80 and the option package 100 so as to be perpendicular to the base board 120. As a result, the hard disk 80, etc. will
It does not get in the way of attaching 0. In addition, this SI
The MM board has a certain angle, for example, 4 mm, so that the MM board can be easily installed and removed from the SIMM insertion portion 70 described later.
It may be inclined at about 5 °.

As shown in FIG. 6, the housing 19 has a rear height of 126 mm, a depth of 340 mm and a front height of 47.
The size is mm, and the design is rounded as a whole. Legs 250 are provided on the housing rear portion 330. A hinge portion 260 that connects the display unit 20 and the main body 10 is provided on the upper front side of the housing 19.

With the above arrangement, the left and right weights of the device are balanced and the display unit 20 is provided.
The weight before and after standing is balanced, and stable installation is possible even though the installation area of the main body 10 is space-saving. Further, the workability at the time of mounting the additional memory 90 is good.

As shown in FIGS. 5 and 6, when the apparatus is not used, the keyboard unit 40 is placed on the step 350 for fixing the keyboard main body, and the display unit 20 is closed to be integrated with the main body 10. The configuration makes it convenient to carry. In particular, keyboard 4
For 0, this effect is great because it is a separate type from the main body. Further, in this embodiment, since the keyboard unit 40 is sandwiched between the display unit 20 and the keyboard fixing step 350 when the display unit 20 is closed, when carrying it, The keyboard unit 40 is prevented from falling off and is excellent in safety. Further, as shown in FIG. 5, the surface of the housing rear portion 330 is a line perpendicular to the housing bottom surface 300 that is the installation surface when the housing 19 is installed so that the base board 120 is in the horizontal direction. , Several times, for example, 3 ~
It is formed so as to be inclined about 5 degrees.

In addition, in the housed state, the display unit 20 and the keyboard unit 40 are shaped so that the front end portions thereof coincide with each other, and the design is such that the beauty and the sense of quality of the device are obtained.

(2) High-efficiency cooling As shown in FIG. 6, an air intake port for taking in air for cooling the inside of the casing from the outside on the side face of the casing 19 opposite to the side face where the floppy disk drive is provided. 24
0 and an air outlet 230 for discharging the taken-in air are provided. The air intake port 240 is provided on the lower side of the side surface, and the air exhaust port 230 is arranged thereon. The air exhaust port 230 is the exhaust heat fan 1 shown in FIG.
It is provided at a position corresponding to the position of 30.

In general, in a small-sized information processing apparatus which uses a semiconductor component such as a CPU to realize high-speed / high-performance processing, the power supply unit 110 and the printed circuit board 120 on which the semiconductor component is mounted generate a large amount of heat. For this reason, the exhaust heat fan 130 and its cooling air intake 240 are essential. In this device, an air intake port 240 is provided in the lower portion of the side surface of the housing in order to improve the cooling efficiency. The air intake 240 has a mesh pattern in consideration of the strength of the housing. In addition, the height is set to be equal to or more than the sum of the thicknesses of the base board 120 and the option package 100 and the height of the semiconductor component / electronic component mounted on the board (see, for example, FIG. 23). The width maximizes the depth of the main body 10.

The heat exhaust fan 130 is arranged on the upper side surface of the housing. Further, particularly, the power supply unit 1 that generates a large amount of heat
Base board 1 on which 10 and semiconductor components are mounted
Air passages are formed so that cooling air may pass between printed circuit boards such as 20. It should be noted that this flow path is formed by the floppy disk drive 50 and the hard disk drive 80 that generate a small amount of heat, and the cooling air is supplied to the base board
It leads from 20 to the power supply unit 110.

The air discharge port 230 is used for the heat exhaust fan 130.
It is specified by the size of. In addition, the discharged air is efficiently discharged so that it does not bounce back into the housing, dust and dust are prevented from entering from the outside, and noise such as wind noise of the heat exhaust fan 130 is eliminated. It has a mesh shape to prevent it.

Although not described in detail, a flexible printed wiring board (FPC) is used to connect each unit constituting the apparatus and the base board 120, thereby further miniaturizing and passing cooling air. We are trying to secure space.

The air flow realized by the above structure is
This will be described with reference to FIGS. 7, 8 and 28.

A part of the cool air taken in from the air intake port is formed between the base board 120 and the option package 100, and the option package 100 and the hard disk 80. And reaches the right side inside the housing through a flow path formed between the disk and the floppy disk drive 50. At this time, the optional package 100, the additional memory 90, the base board 120, etc. are cooled. In this case, by arranging the floppy disk drive 50 and the hard disk drive 80 between the air intake port 240 and the air exhaust port 230, it is possible to prevent air from directly leaking from the air intake port 240 to the air exhaust port 230.

The air that has reached the inner right side of the main body 10 is folded back and flows out of the air outlet 230 through the inside and the periphery of the power supply unit 110. In this case, the power source unit 110, which is the largest heat generation source, is
The heat-discharging fan 130 is disposed near 0, and the heat-exhausting fan 130 is disposed immediately next to the heat-dissipating fan 130. This prevents heat generated from the power supply unit 110 from spreading into the housing and allows rapid discharge. Further, as described above, by disposing the CPU 1100 having a large heat generation amount in the vicinity of the air intake port 240, it is possible to efficiently cool the cooling air with a low temperature.

Further, as shown in FIG. 28, the air taken in from the air intake port 240 (see FIGS. 6 and 7) is divided into the rear side and the front side of the additional memory connector 5001. As described above, the rear side is the baseboard 1
A large space is formed between 20 and the optional package 100. On the other hand, the front side is the baseboard 12
The space above 0 is small. Therefore, most of the taken-in air flows on the rear side of the additional memory connector 5001. By the way, as described above, since the memory with a small heat generation amount is mainly arranged on the front side of the additional memory connector 5001, there is no problem in cooling even if the air flow amount is small. On the other hand, since the CPU 1100 and the like that generate a large amount of heat are arranged on the rear side of the additional memory connector 5001, it is preferable that more cooling air be ventilated through this portion. In this embodiment, since a space is provided between the base board 120 and the option package 100, it is possible to secure a sufficient amount of ventilation.

As described above, since the parts with large heat generation are cooled intensively, the cooling balance with the parts with small heat generation can be maintained inside the device, and the entire device can be cooled efficiently.

Further, by adopting such an arrangement, the above-mentioned high efficiency cooling is possible, the mounting efficiency in the apparatus is improved, and the apparatus is miniaturized, and the width is 390 mm × the depth 340 mm × the height. A device of 126 mm is realized.

(3) Office Environment and Safety Next, the suitability and safety for the office environment when the workstation of this embodiment is installed in an office will be described.

In this embodiment, the upper surface and the rear surface have an apparatus outer shape as shown in FIG. 9, for example. Further, the side surface thereof has an apparatus outer shape as shown in FIG. 10, for example.
Further, the outer front surface of the apparatus casing with the display unit 20 opened has a form as shown in FIG.

The case 19 has a width of 390 mm and a depth of
It is 230 mm. Further, the display unit and the keyboard have the same width according to the main body 10. When the display unit 20 is perpendicular to the installation surface, the height of the device is 331.15 mm. The tilt angle of the display unit 20 is 30 degrees at maximum.

A power connector 32 is provided on the rear surface of the housing 19.
0, a housing rear portion 330, and a cover 340 that covers a work opening for connecting the option package 100 and the base board 120. From this work opening, the PK expansion connector 5002 of the baseboard 120
5003 and a connector (not shown) of the option package 100 are connected using a flexible flat cable (not shown). Power connector 320
Is a horizontal connector because it is located above the housing rear portion 330.

Since various I / Os are connected to the housing rear part 330 by cables, it is possible to secure a space on the front side or the lateral side of the apparatus, and it is possible to prevent discomfort caused by visual noise.

On the side surface of the housing 19, at the intermediate portion 12,
A floppy disk insertion port 50a of the FD drive 50 is provided. A power switch 60 is provided on the upper portion 13. The power switch 60 has only an ON operation section 61, which is operated when it is turned ON, on the surface. The part operated when off is covered with a switch cover 63 that can be opened and closed. This is because, depending on the operating system installed, if the power is turned off before the end operation is performed according to a certain procedure, the data in the main memory will be erased without being saved. This is to protect it from turning off. Further, a plurality of minute protrusions 62 are arranged on the surface of the ON operation portion 61. This can prevent the fingers from slipping during the operation. Further, by making the arrangement pattern of the protrusions 62 unique, when the power switch is turned on by the hand, the operator feels the fingertip and the one touched by the finger is the power switch. It can be determined whether or not. This also applies to other switches and operating members.

Further, the lower part 11 on the side surface of the housing 19 is provided with an option package insertion port covered with the option package insertion port cover 440. Cover 44
0 is, of course, removable. Optional package 10 that has necessary extension functions in the main body 10
If 0 is mounted, the cable can be connected to the optional package 100 when necessary by removing the cover 440. By providing a groove for guiding the option package 100 inside the option package insertion port, connection with the base board 120 can be easily achieved. This facilitates maintenance of the optional package 100 and maintenance.

The display unit 20 includes the display unit 20.
A display lock release button 290 for releasing the connection between the keyboard unit 40 and the keyboard unit 40 is provided. The front display lock release button 290 is a slide type button for inserting and removing a display lock pawl 370 described later. This display unlock button 2
Similarly to the power switch described above, the 90 has a minute protrusion 290a on its surface.

On one side surface of the display unit 20, a liquid crystal control volume 360 for controlling the brightness and contrast of liquid crystal is provided. Liquid crystal control volume 360 for adjusting the contrast and brightness of the liquid crystal display 30
Is incorporated in the display unit 20, has an effect of preventing visual noise that gives the user an unpleasant feeling, and obtains a beautiful appearance and a high-class feeling. In addition, the cover of the display unit 20 is provided with an indentation according to the size of the liquid crystal control volume 360, and the liquid crystal control volume 36 by a finger is used.
It is easy to perform 0 operation.

On the non-display surface side of the display unit 20,
A slide-type housing cover 2 that slides according to the opening / closing operation of the display unit 20 to cover and protect the elbow 260.
70 is provided. The slide type housing cover 270 is a plate having a substantially rectangular shape, and one side in the longitudinal direction is rotatably connected to the display unit 20, and the other side facing the side is the upper surface 19 a of the case 19. Is slid according to the opening and closing of the display unit 20. As a result, the slide-type housing cover 270 covers and protects the hinge portion 260 regardless of the tilted state of the display unit 20, and a cable (not shown) for connecting the display unit 20 and the main body 10. Etc. are covered and protected. The slide-type housing cover 270 may have a function of supporting the display unit 20. Further, three slide members 19b made of, for example, synthetic resin are provided on the upper surface 19a of the housing 19 in order to smoothly slide the housing cover 270.

Further, on the front surface of the display unit 20, the above-mentioned pilot portion 22 and the display lock pawl 370 are provided. As described above, the display lock pawl 370 is configured to be stored in the display unit 20 by the display lock release button 290. As a result, when the device is used, the surface of the display unit 20 is flat and the visual noise can be reduced. Further, the display lock pawl 370 has a key-like shape such that clothes or the like can be easily caught, and there is a high possibility that the device will fall down when the pawl 370 is caught. However, since the display lock pawl 370 can be stored,
The safety of the device can also be secured.

On the front surface of the lower portion 11 of the housing 19, a keyboard fixing step 350 is provided. The keyboard fixing step 350 is provided with an inclination of 14 degrees when the keyboard unit 40 is attached. As a result, even when the keyboard is fixed to the main body 10 and used, excellent operability for the human interface can be obtained. Also, the keyboard fixing step 350
Has a flat convex shape when viewed from the front side. Due to the step portion 351 having the convex shape, the keyboard unit 4
A positioning guide can be provided when the 0 is connected to the main body 10. Further, step 350 for fixing the keyboard
A hole 352 for operating the reset switch is provided at a part of the front end of the
Is provided.

On the front surface of the intermediate portion 12 of the housing 19,
Keyboard lock mechanism 390 and keyboard I / F unit 3
80 and a SIMM insertion unit 70 are provided. The additional memory can be easily mounted by removing the lid of the SIMM insertion unit 70. The lid of the SIMM insertion portion 70 has a shape including a part of the front surface portion and the front surface upper portion of the housing 19, in other words, an “inverted L-shape”, and both the front surface portion and the front surface upper portion. Space is secured and it is easier to work. Further, by stacking the respective units at the rear of the device and ensuring the height of the rear of the housing, SIMMs can be easily mounted in the vertical direction and in the diagonal direction, which facilitates maintenance and maintenance work. Keyboard I / F
The portion 380 has a structure in which a horizontal keyboard connector can be stored, and facilitates connection with the main body 10 of the keyboard unit 40.

The keyboard unit 40 has an upper surface structure and a side surface structure as shown in FIG. The width of the keyboard unit 40 is the same size as the main body 10. The keyboard unit 40 has a front height of 19.5 mm and a rear height of 43 mm.

The keyboard unit 40 includes various keys 4
1, a keyboard lock pawl 400, a curl cord storage area 410, a keyboard unit 40, and a main body 1
There are provided a keyboard fixing release button 280 for releasing the connection with 0 and a keyboard slip stopper 310 for suppressing the slippage of the keyboard unit 40 and stabilizing the bottom surface of the device.

In the keyboard unit 40 of this embodiment, the outer shape of the keyboard unit 40 is thin on the front side and thick on the rear side, and the key surface 42 on which the keys 41 are provided is inclined, whereby the operability of key input is improved. Is increasing. Also, the rear surface portion 450
By giving a tilt to the,
00 should be invisible to the operator (see Figure 13),
Eliminating visual noise.

The curled cord 420 (see FIG. 1) for connecting the keyboard unit 40 and the main body 10 has a curled portion with a diameter not larger than the thickness of the keyboard unit 40. In addition, the curl card of the keyboard unit 40
As shown in FIG. 12, the door connecting portion 460 is arranged on the right side in the curl cord storage area 410. Thus, the keyboard unit 40 is inserted so that the keyboard locking pawl 400 is inserted into the keyboard locking mechanism 390.
When is moved along the keyboard fixing step 350, the curl cord is naturally stored in the curl cord storage area 410. Therefore, it is not necessary to store the curl cord 420 in advance, and the keyboard unit 40 can be fixed easily.

The keyboard I / F section 38 of the main body 10
0 and the curl cord connecting portion 4 of the keyboard unit 40
The left-right positional relationship with 60 may be reversed.

FIG. 14 shows the state of the apparatus when the keyboard is used separately, and FIG. 15 shows the state of the apparatus when the keyboard is used without being separated. The device of this embodiment can be operated according to the style of use of the user.

Further, the keyboard unit 40 is shown in FIG.
As shown in FIG. 6, a keyboard stand 430 is provided on the rear side of the bottom surface. This keyboard stand 430 is a key
It is configured to be rotatable back and forth around a joint portion with the board unit 40 as an axis. By tilting it toward the front side of the keyboard unit, it can be stored along the bottom surface of the keyboard unit. This keyboard stand 4
If the keyboard is separated by setting 30 up,
The configuration is such that a larger inclination can be obtained according to the preference of the user.

The keyboard unit 40 is attached to the main body 10.
Keyboard stand 430
Is placed automatically on the keyboard fixing step 350 by sliding the rear portion of the bottom surface of the keyboard and sliding it toward the main body 10 as it is, so that it is easy to handle.

As described above, the keyboard unit 40
Can be easily mounted by placing the keyboard unit 40 on the keyboard main body fixing step 350, sliding the keyboard unit 40 toward the main body 10, and inserting the keyboard locking pawl 400 into the keyboard locking mechanism 390. .. On the other hand, the removal can be easily performed by pushing the keyboard fixing release button 280 and pulling out the keyboard unit 40.

Since the keyboard fixing release button 280 is arranged on the upper surface of the keyboard unit, it is hidden by the display unit 20 when being carried, so that it cannot be pressed by mistake.

The main body 10 and the keyboard unit 40
It is of course possible to provide a lock mechanism between the key board and the key board on the step 350 for fixing the keyboard body. If provided on both sides, the holding of the keyboard unit 40 becomes more reliable.

FIG. 17 shows the state of the apparatus when the workstation of this embodiment is not used temporarily.

This apparatus uses the keyboard unit 40 as a key.
The keyboard unit 40 can be temporarily held on the front portion of the main body 10 or the display unit 20 by placing the keyboard unit 40 on the board main body fixing step 350 in an upright state. In this case, the keyboard unit 40 does not hide the entire display unit 20. As a result, it is possible to check the execution state of the process while protecting the display screen. Further, since the pilot portion 22 provided in the frame 21 is not hidden, the amount of calculation is large and the processing time is long, so that the operation is performed for a certain period of time such as when the user leaves the desk. When not
Even when the liquid crystal display 30 is in the power saving mode and the brightness of the liquid crystal display 30 is reduced, the pilot portion 22 can be reliably viewed. Therefore, it can be confirmed that the device is in the power-on state, and it is possible to prevent the execution from being erroneously stopped.

The method of locking the keyboard unit in this case is not particularly limited, but it is possible, for example, by providing a stepped portion on the upper surface of the step 350 for fixing the keyboard body. is there. Furthermore, without leaning against the main body 10 or the display unit 20, the keyboard unit 40
It is also possible to provide a locking means capable of locking the. However, in this case, the effect of protecting the display screen of the display unit 20 is reduced.

FIG. 18 shows the state of the apparatus when the workstation of this embodiment is not used.

In this embodiment, the housing rear portion 330 can be used as an installation surface when not in use.
In this case, legs 250 are provided on the rear part 330 of the housing so that the device is stable. The occupied space on the desk when not in use is only the area of the rear part 330 of the housing, and the space can be saved.

Another embodiment will be described.

This embodiment is basically the same in construction as the above-mentioned embodiments, but is characterized in that a handle portion used when the apparatus is moved on a desk is provided.

In this embodiment, as shown in FIG. 19, a recess 500 having a size such that a finger can be hung on the rear bottom of the left and right side surfaces of the housing 19 is provided as a guide for the handle. As a result, when moving the device, the depression 5
You can hang your finger on 00. This facilitates the movement and prevents the device from being accidentally dropped. Also,
It does not lead to an increase in the size of the device. In this way, if the position to which the finger is applied is determined in consideration of the weight balance of the main body, it is possible to hold the main body with good weight balance.

The form of the guide portion is not limited to this. For example, as shown in FIGS.
The same effect can be obtained by providing a housing base 510 having a smaller installation area than the housing 19 on the lower side of the housing 19 to secure a space for access to the lower side of the housing 19. .. In this case, the hands can be inserted not only from the left and right sides but also from the front and back sides. Also, the size of the air outlet is not limited. Furthermore, when a double-sided mounting board is used, a space for components mounted on the back side of the board can be secured by utilizing the internal space of the housing base 510.

In this case, as shown in FIG. 22, the base board 120 is attached to the support base 470 provided on the bottom surface of the housing base 510 by using the board fixing screws 460 to fix the base board 120 to the housing. Can be fixed. In this case, the periphery of the base board 120 is surrounded by the edge portion 51 of the housing stand 510.
Since it is supported by 1, it is possible to stabilize the support.

In the above embodiments, the display unit having a liquid crystal display is used, but the present invention is not limited to this. Other panel displays besides liquid crystals can be used. Of course, CR
It is also possible to apply the present invention to an information processing system having a T display.

Further, in each of the above-described embodiments, an example having a hard disk drive and a floppy disk drive is shown, but the present invention is not limited to this. For example, an optical disk drive may be mounted instead of or in addition to the hard disk drive.

As described above, according to the present invention, the following effects can be obtained by using the above mounting structure.

Circuit elements such as a processor, a memory, and a control circuit IC can be mounted at high density while achieving space saving, and the information processing apparatus can be downsized and more efficient cooling can be realized. it can.

The stability when installed on a desk can be enhanced.

Even if the keyboard is separated, the human interface has an excellent inclination even if it is not separated, so that the operability is not impaired.

By eliminating the visual noise, it is possible to secure the beauty of appearance and the sense of quality and at the same time eliminate the discomfort caused by the noise from the heat exhaust fan.

When not in use temporarily, since the keyboard can be stored in the main body, the depth can be made smaller than the A4 size file binder on the desk, so that space can be saved and the office environment can be effectively used.

Since the keyboard fixing step is provided on the front part of the device, the maximum area of the base substrate can be secured and the function can be expanded.

By adopting a structure in which the front portion of the main body can be detached like a key, maintenance and maintenance such as SIMM insertion / removal can be facilitated.

The keyboard can be attached / detached with one touch. Therefore, it is possible to contribute to effective use of office space and construction of a comfortable office environment.

Although all of the above-described embodiments have one hard disk and one floppy disk as the storage device, the type of the storage device is not limited to this, and for example, It may be an optical disk device. Also, the number and arrangement of the cooling air are not limited to the above-described configuration as long as the same flow passage as the above-described cooling air flow passage and sufficient stability can be secured.

According to the above embodiment, the stability of the device and the safety of carrying it are high. Furthermore, operability is also improved.

[0128]

As described above, according to the present invention, the space saving is achieved.
Processor, memory, control circuit IC
Circuit elements such as can be mounted at high density, and a sufficient cooling capacity can be secured.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external configuration showing an embodiment of the present invention.

FIG. 2 is a block diagram showing a functional configuration inside the main body of the embodiment.

FIG. 3 is a perspective view showing a mounted state of the entire apparatus of the above embodiment.

FIG. 4 is an explanatory view showing a mounted state in the apparatus of the above embodiment.

FIG. 5 is a side perspective view showing a mounted state in the apparatus of the above embodiment.

FIG. 6 is a side view of the apparatus of the above embodiment.

FIG. 7 is a front perspective view showing the flow of cooling air in the main body of the above embodiment.

FIG. 8 is a perspective view showing the flow of cooling air in the main body of the embodiment.

9A and 9B are a top view and a rear view showing the outer shape of the apparatus according to the above embodiment.

FIG. 10 is a side view showing the outer shape of the device with the display unit used in this embodiment opened.

FIG. 11 is a front view showing the outer shape of the device with the display unit used in this embodiment opened.

FIG. 12 is a side view and a plan view showing the outline of the configuration of the keyboard unit used in this embodiment.

FIG. 13 is an explanatory view showing the state of visual noise reduction of the keyboard unit used in this embodiment.

FIG. 14 is a perspective view showing an example of a usage state of the present embodiment in a state where the keyboard unit is separated.

FIG. 15 is a perspective view showing an example of a usage state of this embodiment in a state where the keyboard unit is not separated.

FIG. 16 is an explanatory view showing a standing state of the keyboard stand used in this embodiment.

FIG. 17 is an explanatory view showing a state of this embodiment in a temporary holding state of the keyboard unit.

FIG. 18 is an explanatory diagram showing a form of the present embodiment in a state where the device is “standing up” when not in use.

FIG. 19 is a perspective view showing the outline of the external configuration of another embodiment of the present invention.

FIG. 20 is a perspective view showing still another embodiment of the present invention, in which a housing base is provided.

FIG. 21 is a front view and a side view showing an external configuration of an embodiment provided with the housing base.

FIG. 22 is an explanatory diagram showing a fixed state of the substrate in the embodiment provided with the housing base.

FIG. 23 is an explanatory diagram showing an example of a layout relationship between a base board and an option package used in the embodiment of the present invention.

FIG. 24 is a front view showing an example of a pilot part used in an embodiment of the present invention and a side view of a main part of the parts thereof.

FIG. 25 is an explanatory diagram showing an outline of circuit arrangement in the base board in the embodiment of the present invention.

FIG. 26 is an explanatory view showing the wiring direction of each layer of the base board having a multi-layer structure used in the above embodiment.

FIG. 27 is an explanatory diagram showing an example of diagonal wiring used in the base board.

FIG. 28 is an explanatory view showing the flow of cooling air on the base board.

FIG. 29 is an explanatory view showing the dimensions of an example of the base board used in the above-mentioned embodiment.

[Explanation of symbols]

10: body, 20: display unit, 30: liquid crystal display, 40: keyboard unit, 50: floppy disk drive, 60: power switch, 70: SIMM insertion part, 80: hard disk drive, 90: expansion memory, 100: optional package , 110: power supply unit, 120: base board, 130: heat exhaust fan,
220: Cable for optional package, 230: Air outlet, 240: Air inlet, 250: Leg, 26
0: Hinji part, 270: Sliding type housing cover, 28
0: keyboard lock release button, 290: display lock release button, 300: chassis bottom, 310: slip suppression, 320: power plug, 330: chassis rear part, 34
0: Option package insertion port cover, 350: Key
Step for fixing board, 360: Liquid crystal control volume,
370: Display lock pawls, 380: Keyboard
De I / F section, 390: keyboard lock mechanism, 400:
Keyboard lock pawl, 410: curl cord storage area, 420: curl cord, 430: keyboard stand, 440: optional package cable connection cover, 450: rear face portion, 460: board fixing screw, 47
0: substrate screw fastening, 500: hollow, 510: housing stand,
1000: processor unit, 1100: CPU, 120
0: bus control / main memory control unit, 1300: main memory,
1310: Memory Bus, 2000: Display Control Unit, 210
0: drawing control unit, 2200: frame memory, 230
0: font ROM, 2400: drawing bus, 3000:
I / O control unit, 3100: I / O data processing unit, 400
0: System bus, connector: 5001 to 5016.

Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI Technical display location 7927-5B G06F 1/00 320 F (72) Inventor Kiyokazu Nishioka 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Stock expression Hitachi, Ltd., Microelectronics Device Development Laboratory (72) Inventor Hideki Kammaki, 292, Yoshida-cho, Totsuka-ku, Yokohama, Kanagawa Stock Company, Hitachi Microelectronics Device Development Laboratory (72) Inventor Ryoichi Mizuno Aichi 1 Ikegami, Haruoka-cho, Owariasahi, Oita Prefecture, Ltd., Asahi Plant, Hitachi, Ltd. (72) Inventor, Koichi Isaji, 810, Shimoimaizumi, Ebina, Kanagawa Prefecture, Ltd., Hitachi Systems Design and Development Center, Ltd.

Claims (24)

[Claims] 1. A small information processing apparatus comprising a device body, a display unit, and an input unit, wherein the device body comprises a processor section for processing data, a display control section for display control, and an I / O apparatus. A printed circuit board having an I / O control unit for controlling input / output to and from a housing that houses the printed circuit board. The printed circuit board has a circuit forming a processor unit on the first end side thereof. Information in which the elements are arranged, the circuit elements forming the I / O control unit are arranged on the second end side, and the circuit elements forming the display control unit are arranged between them. Processing equipment. 2. The printed circuit board according to claim 1,
An information processing apparatus, characterized in that the first and second ends are housed in the housing so as to be positioned in the left-right direction when the housing is viewed from the front. 3. The information processing apparatus according to claim 2, wherein the printed circuit board is arranged along the bottom surface of the housing. 4. The processor unit according to claim 3, wherein the processor unit has a central processing unit and a main memory, and the central processing unit and the main memory are the central processing unit and the front side when viewed from the front of the housing. An information processing device, which is arranged on a printed circuit board so as to serve as a main memory. 5. The display control unit according to claim 4, wherein the display control unit includes at least a drawing control unit, a frame memory, and a font memory, and the frame memory and the font memory are arranged on the front side of the printed circuit board. A characteristic information processing device. 6. The apparatus according to claim 5, further comprising a plurality of connectors for making connections inside the main body and connections outside the main body, and these connectors are first and first predetermined on the printed circuit board. An information processing device, wherein the information processing device is arranged in the second connector arrangement area. 7. The information processing apparatus according to claim 6, wherein the first connector arrangement area is an area along a side of the printed board that is arranged on a rear side of the housing. 8. The connector arranged in the first connector arranging region according to claim 7, wherein an end face for connecting the connector and a face for mounting the connector are provided vertically. An information processing device. 9. The information processing apparatus according to claim 7, wherein the second connector arrangement area is a position behind the area where the frame memory is arranged. 10. The connector arranged in the second connector arrangement area according to claim 9, wherein an end surface for connecting the connector and a surface for mounting the connector are provided in parallel. An information processing device. 11. The information processing apparatus according to claim 10, wherein a connector for connecting an additional memory is included as the connector arranged in the second connector arrangement area. 12. The information processing apparatus according to claim 11, wherein the housing has a front surface portion having an extension unit insertion opening and a cover covering the insertion opening at a corresponding position of a connector for connecting an expansion memory. 13. The information according to claim 4, further comprising one or more disk type storage means and a power supply unit in a housing, and the printed circuit board, the disk type storage device and the power supply unit are arranged in this order from below. Processing equipment. 14. The air intake port and the exhaust port are provided on one of the side surfaces of the housing, and the air intake port is opened corresponding to the space between the printed circuit board and the disk storage device. , The air outlet is arranged corresponding to the position of the power supply unit, the information processing apparatus. 15. The information processing apparatus according to claim 14, further comprising a heat exhaust fan, wherein the heat exhaust fan is disposed in the vicinity of the air exhaust port. 16. The information processing apparatus according to claim 15, wherein the option package is arranged in the space between the printed circuit board and the disk storage device. 17. The information processing apparatus according to claim 16, wherein the printed circuit board and the option package are arranged so that surfaces on which components are mounted face each other. 18. The printed circuit board and the option package according to claim 17, wherein the printed circuit board and the option package have at least a space corresponding to the sum of the height of the central processing unit mounted on the printed circuit board and the height of the component area of the option package. Information processing device to be placed. 19. The information processing device according to claim 18, wherein the disk type storage device is a hard disk drive and a floppy disk drive, both of which are arranged side by side in the left-right direction of the housing. 20. The information processing apparatus according to claim 19, wherein the air intake port is provided on a side surface of the housing on the side where the processor section is arranged. 21. The system bus according to claim 9, wherein the system bus is arranged in an area behind the second connector arrangement area, and the drawing bus is arranged in an area in front of the second connector arrangement area. , Information processing device. 22. The information processing apparatus according to claim 1, wherein the printed circuit board has a structure in which a plurality of wiring layers are laminated, and the wiring layers include diagonal wiring layers. 23. The information according to claim 1, wherein the display unit has a display surface for displaying and a non-display surface for not displaying, and has pilots on both surfaces. Processing equipment. 24. The information processing apparatus according to claim 23, wherein the pilot on the display surface is capable of emitting radiation having a strong directivity, and the pilot on the non-display surface is provided with a light emitter capable of being diffused and emitting radiation. ..