JP4085349B2 - Information processing device with built-in keyboard - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a keyboard built-in information processing apparatus, and more particularly to a keyboard built-in information processing apparatus with an improved structure for heat dissipation.
[0002]
[Prior art]
2. Description of the Related Art In recent years, notebook personal computers (hereinafter referred to as notebook PCs) whose usage is increasing have internal heating components such as microprocessors and DC / DC converters. If the temperature inside the notebook PC rises too much due to the heat generated from these heat-generating parts, the internal parts of the notebook PC will be adversely affected. Therefore, it is known to provide a vent on the surface such as the top surface of the notebook PC in order to dissipate heat generated from the heat-generating component. However, when an air vent is to be provided on the top surface of the notebook PC, etc., a keyboard is fixedly attached to the top surface of the main body, and a floppy disk insertion slot and a CD-ROM are inserted on the side and back of the main body. The layout is difficult because the mouth or the connector is installed. That is, there are many cases where there is no space for providing a vent on the surface of the casing of the notebook PC. Moreover, even when vents are provided on the surface of the housing as described above, the mounting density of internal components has increased and miniaturization has been further advanced in recent notebook PCs. There is a problem that heat generated in the heat generating part is not discharged from the vent hole and heat is accumulated inside.
Therefore, as a recent notebook PC, a type in which an air-cooling fan is installed on a microprocessor or a side surface of a housing for heat radiation is increasing. However, the installation of an air cooling fan has a problem that the apparatus becomes larger by the amount of space for installing the air cooling fan. There is a problem that it is inconvenient to carry when the size is increased.
In addition, as described in JP-A-7-153880 and JP-A-8-263162, a structure in which an air cooling fan and an exhaust duct are provided in a notebook PC, or an air cooling fan is provided and a space is secured. It is also known to use. However, in this case as well, since the mounting density of the internal components is high, there is a problem that it is difficult to secure an exhaust duct and a space in the notebook PC together with the above-described air cooling fan.
[0003]
[Problems to be solved by the invention]
The present invention has been made in order to solve the above-described conventional problems, and in a keyboard-embedded information processing apparatus such as a notebook PC that is miniaturized and mounted with high density, without installing an air cooling fan. An object of the present invention is to provide a keyboard built-in information processing apparatus capable of dissipating heat generated from a heat-generating component through a vent.
[0004]
[Means for Solving the Problems]
  In order to achieve the above-mentioned object, a keyboard built-in information processing device according to claim 1 is a keyboard built-in information processing device comprising a main body containing a heat-generating component and a keyboard arranged on the main body. The keyboard has a separate structure that can be moved from the main body, is located near the front end of the keyboard, is rotatably attached to the keyboard, and slides on a front guide protrusion installed on a side surface of the main body. A front support member having a straight long hole for movably mounting, and a rear side located in the vicinity of the rear end of the keyboard and pivotally attached to the keyboard and installed on the side of the main body A rear support member having a long hole bent in an L shape or a J shape for slidably attaching to the guide protrusion, and holding the keyboard forward from the storage position in the main body. The back side of the rear side guide projections raisedsupportLong hole of memberIn the lower bending holeThe keyboard is arranged in an input operation posture in which the back side becomes higher than when stored and the front side is equal to the height when stored and forwards with respect to the storage. According to a second aspect of the present invention, in the keyboard-embedded information processing device according to the first aspect, the keyboard is placed in a predetermined input operation posture on the upper surface of the main body by the front support member and the back support member. A switch for detecting that the keyboard is held is provided, and key input using the keyboard is canceled unless the switch detects that the keyboard is supported in a predetermined input operation posture. .
[0005]
  According to a third aspect of the present invention, in the keyboard-embedded information processing device according to the second aspect, unless the switch detects that the keyboard is supported in a predetermined input operation posture, By limiting the operation of the DC / DC converter, the amount of heat generated from the heat-generating component is suppressed.And
[0006]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First embodiment)
  FIG. 1 is a diagram showing an outline of a first embodiment according to the present invention.
  The notebook PC shown in FIG. 1 has a display device such as an LCD and a lid portion 1 pivotally supported by a rear portion of a main body 3 so as to be opened and closed in the front-rear direction, a keyboard 2 having a large number of input keys, And a heat generating component such as a processor and a DC / DC converter, and a main body 3 incorporating other components.
  Further, the keyboard 2 in the first embodiment has a structure different from that of the main body 3, and can be locked to a predetermined input operation posture moved (floated) from the upper surface of the main body 3. A partition plate 4 is provided to prevent foreign matter or the like from entering the inside of the main body 3 when 2 is levitated. Further, a vent hole 5 for heat dissipation is formed in the vicinity of the partition plate 4. The lid 1 is pivotally supported on the main body 3 by a hinge or the like so that it can be opened and closed in the front-rear direction.
  FIG. 1A shows a state in which the lid 1 is opened and the keyboard 2 is placed at the storage position. Figure1(B) is a diagram showing a state in which a space for heat dissipation is formed between the keyboard 2 and the main body 1 by moving (floating) the keyboard 2 to the input operation posture. FIG. 1C is a diagram showing the top surface of the main body 3 without the keyboard 2. In addition, the state without the keyboard 2 described in FIG. 1C is described for explaining the upper surface of the main body 3 and does not indicate a state where it is actually used. As shown in FIG. 1B, in order to make the keyboard 2 slide and move partially toward the front side and to be in a state where it is partially lifted and locked in the input operation posture, a support tool is used in the first embodiment.
  Hereinafter, a support for locking the keyboard 2 to the input operation posture in which the keyboard 2 is partially lifted will be described.
[0007]
FIG. 2 is a side view showing the configuration of the first embodiment.
As shown in FIG. 2, the keyboard 2 in the first embodiment is a support member for locking the keyboard 2 in an input operation posture in which the keyboard 2 is partially lifted from the main body 1 (slid forward and the rear end is lifted). The keyboard support member 7 and the support tool 11 which is a support member for preventing the front portion of the keyboard from falling off the main body 3 are locked in the operation input posture.
The keyboard support member 7 has a round hole 7a for attaching to the keyboard 2 and a long hole 7b for slidably attaching to the main body 3. The long hole 7b is bent into a substantially "L" or "J" shape. ing. A round hole 7 a of the keyboard support member 7 is rotatably attached in the vicinity of the rear end of the keyboard 2, and the long hole 7 b of the keyboard support member 7 slides on the guide protrusion 10 installed on the side surface of the main body 3. Freely fitted.
The support member 11 located on the front also has a round hole 11a for pivotally attaching to the keyboard 2 and a long hole 11b slidably engaged with the main body 3. The long hole 11b of the support member 11 is linear, for example. The round hole 11 a of the support member 11 is attached in the vicinity of the front side end of the keyboard 2, and the long hole 11 b of the support member 11 is slidably fitted to the guide protrusion 40 installed on the side surface of the main body 3. The The reason why the long hole 11b of the support member 11 is linear is that the front side of the keyboard 2 is supported by the front upper corner portion 6 of the main body 3, and the keyboard 2 is simply vertically oriented with this portion as a fulcrum. It is because it rotates to.
[0008]
The operation for locking the keyboard 2 in the storage position shown in FIG. 1A to the input operation posture is to lift the keyboard 2 set on the upper surface of the main body as shown in FIG. 1A in the direction 8 in FIG. Is done. At this time, the keyboard support member 7 slides with the long hole 7b sandwiching the guide protrusion 10. In the state of FIG. 1A, the guide protrusion 10 is in contact with the upper end of the long hole 7b of the keyboard support member 7, and as the keyboard 2 floats, the guide protrusion 10 moves relatively downward in the long hole 7b. Finally, it enters the bending hole at the lower part of the long hole and stops at its end. The keyboard 2 is locked in the input operation posture by sliding the keyboard support member 7 in this way and seating the guide protrusion in the bent hole at the lower part of the long hole. At that time, the front support member 11 also slides with the long hole 11b sandwiching the guide protrusion 40. The sliding direction of the support member 11 is a direction from the upper end to the lower end of the long hole 11b.
To return the keyboard 2 locked in the input operation posture shown in FIG. 2 to the storage position on the main body 3, the keyboard 2 is once lifted in the direction 9 and then lowered to the storage position on the main body 3. Also in this case, the keyboard support member 7 slides such that the long hole 7b sandwiches the guide protrusion 10. The sliding direction of the keyboard support member 7 at that time slides so that the guide projection 10 comes out of the bent hole of the long hole 7b of the keyboard support member 7 and relatively moves upward in the long hole 7b. As the keyboard support member 7 operates in this manner, the keyboard 2 is released from the position locked in the input operation posture and is stored in the storage position on the main body 3 shown in FIG. At that time, the front support member 11 also slides along the guide protrusion 40 in the long hole 11b. The moving direction of the support member 11 is a direction from the lower end to the upper end of the long hole 11b.
[0009]
In this way, even a notebook PC as a keyboard-embedded information processing apparatus that is miniaturized and has high-density components stored therein can secure a vent for dissipating internal heat generation. Further, these vent holes 5 are provided over a wide range of the upper surface of the main body, and by disposing the vent holes 5 in the vicinity of the heat-generating component, the vent holes 5 function effectively to radiate the internal heat effectively. Even if a path for guiding heat generation to the vent is not secured due to the high density of the internal parts, the notebook PC is originally thin, and if the vent hole 5 having a wide area is arranged on the upper surface of the main body, the notebook PC can be removed. This heat can be easily guided to the vent hole 5 for waste heat. In particular, if the vent hole 5 is appropriately arranged near the heat generating component, the waste heat effect is sufficient.
Next, the switch 12 provided on the upper surface of the main body 3 will be described. The switch 12 indicates that the keyboard 2 seated and stored in the storage position on the main body 3 is partially lifted and locked in the input operation posture position, and a space for discharging heat is created above the vent hole 5. It is a switch to detect. The switch 12 is a means for detecting the distance between the lower surface of the keyboard 2 and the upper surface of the main body 3 in the input operation posture.
For example, assuming that the switch 12 is not provided, the keyboard can be used without any limitation even if the keyboard 2 remains placed in the storage position on the main body 3. Then, the keyboard 2 is used in a state where heat cannot be radiated from the vent hole 5 on the main body 3, and there is a possibility that the temperature inside the apparatus rises and the apparatus malfunctions. However, if the switch 12 is provided so that the keyboard 2 cannot be used unless the keyboard 2 rises from the storage position on the main body 3 to the input operation posture, the temperature inside the device and malfunction of the device can be avoided. it can.
Hereinafter, an electric circuit using a signal detected by the switch 12 will be described.
[0010]
FIG. 3 is a functional block diagram of an electric circuit using a signal detected by the switch 12.
In addition to the keyboard 2 and the switch 12, the circuit shown in FIG. 3 includes a DC / DC converter 31 that supplies power to the inside of a keyboard built-in information processing apparatus (hereinafter referred to as the present processing apparatus), and a commercial power supply voltage. Adapter 32 for DC conversion to supply to DC / DC converter 31; battery 32 for supplying DC voltage when voltage cannot be obtained from a commercial power supply; and supply from DC / DC converter 31 to the inside of the processing apparatus. A power control microcomputer 34 that manages the power to be used, a CPU 35 that controls the entire internal apparatus of the processing apparatus, a bus 36 that is a signal path between the internal apparatuses of the processing apparatus, and a keyboard microcomputer 37 that controls the keyboard 2. And other peripheral devices 38 such as a ROM storing the BIOS. The power control microcomputer 34 and the DC / DC converter 31, and the power control microcomputer 34, the CPU 35, the keyboard microcomputer 37, and other peripheral devices 38 are connected by a bus 36.
Next, the operation of FIG. 3 will be described.
The DC / DC converter 31 supplies a DC voltage VCC suitable for each internal device of the present processing device under the control of the power control microcomputer 34.
[0011]
While the switch 12 detects that the keyboard 2 is not in the input operation posture, the power control microcomputer 34 stops the voltage output from the DC / DC converter 31 to the keyboard 2 or the BIOS in the other peripheral devices 38. The key input operation by the keyboard 2 is invalidated by controlling the keyboard microcomputer 37 so that the input from the keyboard 2 is invalidated using the ROM storing the.
When the switch 12 detects that the keyboard 2 is in the input operation posture, the power control microcomputer 34 uses the detection signal as a trigger to start voltage output from the DC / DC converter 31 to the keyboard 2 or other peripherals. By using the ROM storing the BIOS in the device 38 so that the input from the keyboard 2 to the keyboard microcomputer 37 is valid, the key input operation by the keyboard 2 is validated.
By operating in this way, the keyboard 2 can be invalidated when the keyboard 2 is not locked in the input operation posture. As a result, it is possible to eliminate the possibility of causing a temperature rise inside the apparatus and a malfunction of the apparatus.
[0012]
By the way, even if the keyboard 2 is invalidated as described above, if the contents to be automatically operated are programmed in the activation program of the keyboard built-in information processing apparatus, the temperature inside the apparatus may be increased or the apparatus may malfunction. There is a problem that remains. Also, if you want to use the keyboard built-in information processing device only for a short time, the keyboard built-in information processing device can be used only after the keyboard 2 is locked to the input operation posture at startup. Have the problem of inconvenience.
Therefore, in the present invention, when the keyboard 2 is not in the input operation posture, instead of disabling the key input operation using the keyboard 2, the operation of the heat generating portion (heat generating component) in the keyboard built-in information processing device is performed. The problem is solved by limiting.
In this case, the circuit configuration is the same as in FIG. 3, but the operation contents are different as follows.
That is, while the switch 12 detects that the keyboard 2 is not in the input operation posture, the power control microcomputer 34 limits the voltage output from the DC / DC converter 31 to the heat generating part in the processing apparatus. Specifically, the voltage output from the DC / DC converter 31 is limited, the charging current to the battery 33 is limited, or the operation speed of the CPU 35 is limited. This restriction is performed using a ROM storing the BIOS in the other peripheral devices 38 according to an instruction from the power control microcomputer 34.
When the switch 12 detects that the keyboard 2 is in the input operation posture, the power control microcomputer 34 releases the restriction using the detection signal as a trigger.
[0013]
By operating in this way, even when the keyboard 2 is not locked in the input operation posture, the operation content of the keyboard built-in information processing apparatus can be limited and operated. Therefore, even if the contents to be automatically operated are programmed in the startup program, it is possible to eliminate the possibility of causing the temperature rise inside the apparatus and the malfunction of the apparatus. In addition, even if the keyboard 2 is not in the input operation posture, the operation can be performed in a state where the operation of the heat-generating component is restricted. Can be eliminated.
By the way, in the said 1st Embodiment, the angle by which the keyboard 2 is locked by an input operation attitude | position is one type. However, since the preferred angle of the input operation posture differs depending on the individual operator, some operators feel inconvenience in the input operation posture of the keyboard 2. In the second embodiment to be described next, the above-described problem is solved by providing a mechanism that can arbitrarily change and set the angle of the input operation posture of the keyboard 2.
[0014]
(Second Embodiment)
The second embodiment shown in FIG. 4 is different from the first embodiment shown in FIG. 2 with respect to a support member for partially floating the keyboard 2 and locking it to the input operation posture. Therefore, the support member of the second embodiment different from the first embodiment will be described below.
FIG. 4 is a side view showing the configuration of the second embodiment.
The only difference between the configuration shown in FIG. 4 and the configuration shown in FIG. 2 is that the keyboard support member 7 in FIG. 2 is changed to a keyboard support member 13 having a different shape in FIG. The configuration is the same. Therefore, detailed description of the configuration other than the keyboard support member 13 is omitted.
The keyboard support member 13 is the same as the keyboard support member 7 in that it has a round hole 13 a for attaching to the keyboard 2, but bent into an “L” shape for slidably attaching to the main body 3. There is no long hole 7b. Instead, the keyboard support member 13 has a saw-toothed long hole 13b having a plurality of lock positions provided corresponding to each input operation posture. Each one of the serrated teeth 13c in the long hole 13b is a position where it is locked by the guide projection 10, that is, a lock position of the input operation posture.
The operation for locking the keyboard 2 to the input operation posture is to lift the keyboard 2 in the direction 8 and place the guide projection 10 at the position of the tooth 13c arbitrarily selected in the sawtooth shape, and then lower the keyboard 2 slightly. Thus, the keyboard support member 13 is locked at the position of the serrated teeth 13c, and the keyboard 2 is also locked in the input operation posture arbitrarily selected in accordance therewith.
[0015]
The method of returning the keyboard 2 locked in the arbitrarily selected input operation posture to the storage position on the main body 3 is the same as in the case of the first embodiment. Further, in order to lock the keyboard 2 locked in the arbitrarily selected input operation posture, in another input operation posture, the keyboard 2 is once lifted in the direction 9 and then the position of the other sawtooth-like teeth 13c is positioned. The keyboard 2 may be moved slightly so as to position the guide protrusion 10 and then slightly lowered.
Thus, in the second embodiment, the keyboard 2 can be locked in an arbitrary input operation posture. Therefore, in the second embodiment, the keyboard 2 can be locked in accordance with a preferable input operation posture of the keyboard 2 which is different for each operator, and as a result, the operability of the keyboard 2 is improved.
By the way, when the keyboard 2 is locked in the input operation posture as in the above embodiments, the lid 1 is not closed as it is. Therefore, in order to close the lid 1, the keyboard 2 must be manually returned to the storage position on the main body 3, and there is a problem that the operator feels inconvenience. Further, there is a problem that, if the keyboard 1 is locked in the input operation posture and the lid 1 is accidentally closed, a display device such as an LCD provided in the lid 1 may be damaged. is there. In a third embodiment to be described next, the above-described problem is solved by providing a mechanism in which the keyboard 2 automatically returns to the storage position of the main body 3 in conjunction with the operation of closing the lid 1.
[0016]
(referenceForm)
  FIG.Reference of the present inventionIt is a side view which shows the structure of the outline of a form.
  Of FIG.referenceThe form is a fan-shaped protrusion 14 that is provided on the shaft of the hinge that supports the cover 1 or an extension of the shaft and rotates integrally with the cover 1, and a hook-shaped protrusion that engages with the fan-shaped protrusion 14 upward. An L-shaped member 15 having an engaging portion 15a and having a hypotenuse 15b below and operating in parallel up and down in conjunction with the rotation of the fan-shaped protrusion 14, and the hypotenuse 15b of the L-shaped member 15 The transmission member 16 that is pressed through the oblique side portion 16a to move in the horizontal direction, and the push-up member 23 that pushes up the keyboard 2 in the direction 9 by the horizontal movement of the transmission member 16.
  A long hole 15c extending in the vertical direction is formed through the triangular portion located below the L-shaped member 15, and a guide protrusion 40 protruding from the main body 3 is loosely fitted in the long hole 15c. The character-shaped member 15 is configured to be lifted and lowered along a predetermined vertical direction path. If necessary, the L-shaped member 15 may be elastically biased downward, or a guide for stably moving in the vertical direction may be provided.
  Further, a guide protrusion 42 protruding from the main body 3 is loosely fitted in the elongated hole 16b of the transmission member 16, and guides the transmission member 16 so as to be slidable in the lateral direction. The transmission member 16 moves back and forth in the lateral direction by a lateral thrust load generated by sliding between the oblique side portion 16a and the oblique side portion 15b. If necessary, a guide may be provided to elastically bias the transmission member 16 in the return direction opposite to the arrow 18 or to advance and retract in the lateral direction while maintaining the horizontal posture.
[0017]
Accordingly, when the operation of closing the lid portion 1 is performed, the fan-shaped protrusion 14 rotates in the counterclockwise direction → the operation in the upward direction 17 of the L-shaped member 15 → the operation in the direction 18 of the transmission member 16 → Ascending operation and rotating operation of the push-up member 23 are performed, and finally the keyboard 2 is automatically pushed up in the direction 9. Note that the raising operation and the rotation operation of the push-up member 23 are clockwise rotation about the shaft 20 fixed to the main body 3 when the lower end 21 of the push-up member 23 is pushed in the horizontal direction by the transmission member 16. This means that the push-up member 23 itself is pushed up in the long side direction while rotating in the direction. After moving in the direction 9, the keyboard 2 finally descends due to its own weight or the like and sits in the storage position on the main body 3.
In this way, the keyboard 2 can be automatically returned from the input operation posture to the storage position on the main body 3 in conjunction with the operation of closing the lid 1, so that the operator can close the lid 1 when closing the lid 1. The inconvenience felt can be eliminated, and the LCD or the like is not damaged even if the lid 1 is accidentally closed when the keyboard 2 is locked in the input operation posture.
In addition, the transmission method of the operation | movement in 3rd Embodiment may be other transmission methods, for example, it replaces with the fan-shaped protrusion part 14, the L-shaped member 15, and the transmission member 16 of FIG. One end is fixed, the other end of the wire is fixed to the lower end 21 of the push-up member 23, and the wire is guided along a predetermined path by a pulley provided in the main body or the like, thereby interlocking with the operation of closing the lid portion 1. You may comprise so that a keyboard may descend | fall and sit in a storage position.
[0018]
【The invention's effect】
As described above, according to the first aspect of the present invention, even if it is a keyboard-embedded information processing apparatus such as a notebook PC that is miniaturized and has high-density mounting of components, a vent for dissipating internal heat generation Can be secured. In other words, since the keyboard is designed to float from the top of the main unit so that the vent can be provided over a wide area on the top of the PC, the vents are always open when the keyboard is used. It will surely be possible to waste heat. In particular, since notebook PCs are thin and the distance from the internal heat generating part to the air vent is small, even if the internal parts are tightly packed, securing a large air vent makes it relatively efficient. The internal heat can be dissipated. In particular, the waste heat efficiency can be further increased by forming the vent hole aiming at the location of the heat generating component.
Further, in the present invention according to claim 2, since the keyboard prevents the keyboard built-in information processing apparatus from being used unless the keyboard is partially lifted from the storage position on the main body and assumes an input operation posture. Temperature rise inside the device and malfunction of the device can be avoided.
[0019]
  According to the third aspect of the present invention, even when the keyboard is not locked in the input operation posture, the keyboard-embedded information processing apparatus can be used although the operation content is limited. Therefore, the inconvenience felt by the operator can be eliminated, and even if the contents to be automatically operated are programmed in the startup program, there is no possibility of causing a temperature rise inside the apparatus or a malfunction of the apparatus.it can.
[Brief description of the drawings]
FIGS. 1A, 1B and 1C are diagrams showing an outline of a first embodiment according to the present invention.
FIG. 2 is a side view showing the configuration of the first embodiment.
FIG. 3 is a functional block diagram of an electric circuit using a signal detected by a switch.
FIG. 4 is a side view showing a configuration of a second embodiment.
FIG. 5 is a side view showing a schematic configuration of a third embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Cover part, 2 ... Keyboard, 3 ... Main body, 4 ... Guide, 5 ... Vent, 6 ... Front side of main body 3, 7, 13 ... Keyboard support Member, 8, 9, 17, 18 ... direction, 10, 40 ... guide projection, 11 ... guide projection, 12 ... switch, 14 ... fan-shaped projection, 15 ...... L Character-shaped member, 16 ... transmission unit, 31 ... DC / DC converter, 32 ... AC adapter, 33 ... battery, 34 power control microcomputer, 35 ... CPU, 36 ... bus, 37 ... Keyboard microcomputer, 38 ... Other peripheral devices, 23 ... Push-up unit

Claims (3)

In a keyboard built-in type information processing apparatus comprising a main body containing a heat generating component and a keyboard arranged on the main body,
The keyboard is a separate structure movable from the main body,
A front support having a linear slot for slidably attaching to a front guide protrusion installed on a side surface of the main body, which is located near the front end of the keyboard and is pivotally attached to the keyboard. A member,
It is located in the vicinity of the back end of the keyboard and is attached to the keyboard so as to be rotatable, and is L-shaped or J-shaped for slidably attaching to a back guide protrusion installed on the side of the main body. A back support member having a bent long hole,
By lifting the keyboard from the storage position in the main body to the front side and seating the back side guide projection in the bending hole at the bottom of the long hole of the back side support member, the back side becomes higher than the storage time, and the front side is stored. A keyboard-embedded information processing apparatus, wherein a keyboard is arranged in an input operation posture that is equivalent to the height of the time and forward of the storage. Provided on the upper surface of the main body is a switch for sensing that the keyboard is held in a predetermined input operation posture by the front support member and the back support member,
2. The keyboard built-in information according to claim 1, wherein key input using the keyboard is canceled unless it is detected that the keyboard is supported in a predetermined input operation posture by the switch. Processing equipment. Unless the switch detects that the keyboard is supported in a predetermined input operation posture, the operation of the microprocessor and the DC / DC converter as the heat generating component is continuously restricted, thereby suppressing the amount of heat generated from the heat generating component. The keyboard built-in information processing apparatus according to claim 2 .

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