JP2008262597A - Information processor and extension device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently eliminate heat generated inside an information processor and to attenuate noise due to passage of discharge air flow caused by a cooling fan for improving silence properties. <P>SOLUTION: The extension device is provided with a cooling means, which is a second cooling fan arranged on the outside surface corresponding to a heat conductive member in integration with the information processor for generating discharge air flow to be discharged to the outside for cooling heat transmitted via the heat conductive member, an inlet port arranged on the outside surface corresponding to an outlet port in integration with the information processor for introducing discharge air flow discharged from the information processor by a first cooling fan, a first silencing means attenuating noise generated by passage of the discharge air flow introduced from the inlet port, a second silencing means attenuating noise generated by passage of the discharge air flow generated by the second cooling fan, and the outlet port for discharging the discharge air flow. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information processing device and an expansion device, and in particular, an information processing device including a CPU, a main memory, an input unit, a display unit, and an expansion device including an expansion power supply unit, an external storage unit, various interface units, and the like. The present invention relates to an information processing apparatus and an expansion apparatus in a system configured to be detachable.

CPUs used in recent personal computers are required to have high-speed processing, so that their operating frequencies have increased, and power consumption has increased accordingly. In particular, portable information processing apparatuses such as notebook personal computers and PDAs are mounted with high density for the purpose of miniaturization, and thus heat generation increases with an increase in power consumption.
In such an information processing apparatus, cooling means using a cooling fan, a heat sink, a heat pipe, or the like is usually used, and it is required to use these to efficiently cool. In order to cope with the full operation of the CPU, it is conceivable to increase the rotation speed of the cooling fan in addition to increasing the size of the cooling means or installing a plurality of cooling means.

  Enlarging the cooling means or increasing the number of installations goes against the downsizing of the apparatus, and it is difficult to secure an installation space inside the apparatus. Further, if the cooling fan is driven at a high speed, noise is generated, and it is necessary to install a silencer for attenuating the generated noise. As a silencer, it is conceivable to install a sound absorbing material or silencer inside the device, but in this case as well, it is difficult to secure a space inside the device due to the downsizing of the device, and effective silence is achieved. Has not been realized.

  An expansion device (referred to as a docking station) equipped with an extended power supply unit, external storage means, various interface units, etc., and an information processing device equipped with a CPU, main memory, input means, display means, etc. are detachable from the expansion device There is a configured information processing system. In a configuration including such an expansion device, it has been proposed to install a cooling means on the expansion device side to remove heat generated on the information processing device side (for example, Patent Document 1 (Japanese Patent No. 2908418). )reference).

In this Patent Document 1, a heat sink is provided on the information processing device side, a cooling means such as a cooling fan is provided on the expansion device side, and the heat sink on the information processing device side is used when the information processing device is integrated with the expansion device. The cooling means on the expansion device side is connected with a heat conductor such as silicon rubber so that the heat on the information processing device side is radiated on the expansion device side.
In addition, it has been proposed to suppress noise by controlling the number of rotations of a cooling fan provided on the information processing apparatus side in accordance with a power management mode or the like (for example, Patent Document 2 (Japanese Patent Laid-Open No. Hei 10). -11176)).

In the information processing system as described in Patent Document 1, it is possible to cool the heat generated in the information processing device by the cooling means provided in the expansion device, but no noise countermeasures for the cooling fan are taken. During operation, noise caused by passage of the cooling fan and the exhaust flow generated by the cooling fan becomes a problem.
Further, in the information processing system described in Patent Document 2, although the cooling fan is stopped and silenced when the CPU is in an idle state, the cooling fan is operated when the CPU operates at full power. There is a problem that noise is generated because of driving.
Japanese Patent No. 2908418 Japanese Patent Laid-Open No. 10-11176

  It is an object of the present invention to efficiently eliminate heat generated inside an information processing apparatus and attenuate noise caused by passage of an exhaust flow generated by a cooling fan to reduce noise.

  An expansion device according to a first aspect of the present invention includes a heat conduction member for transmitting heat generated therein to the vicinity of a joint portion with the expansion device, and first cooling for generating an exhaust flow for discharging internal air. An expansion device that is detachable from the information processing device having a fan and an outlet for discharging the exhaust flow, and is provided on the outer surface corresponding to the heat conducting member when integrated with the information processing device, Cooling means that is a second cooling fan that generates an exhaust flow that is discharged to the outside in order to cool the heat transmitted through the heat conducting member, and an outside corresponding to the outlet when integrated with the information processing apparatus An introduction port provided on the surface for introducing an exhaust flow exhausted from the information processing device by the first cooling fan into the interior, and a first silencing for attenuating sound generated along with the passage of the exhaust flow introduced from the introduction port Generated by the means and the second cooling fan Comprising a second silencing means for damping sound generated with the passage of the air flow, and outlet for discharging the exhaust stream.

  In this case, when the information processing device unit and the expansion device are integrated, the outlet on the information processing device side and the introduction port on the expansion device side are connected, and the exhaust flow generated by the first cooling fan is Introduced from the information processing device to the expansion device, the heat conducting member of the information processing device cooperates with the heat radiation by the second cooling means of the expansion device, so that the inside of the information processing device can be efficiently cooled. Further, the noise generated by the first cooling fan can be attenuated by the first silencer, and the noise generated by the second cooling fan can be attenuated by the second silencer, so that the noise can be reduced.

  An information processing apparatus according to a second aspect of the present invention introduces an air flow into a cooling means that is a second cooling fan that generates an exhaust flow to be discharged to the outside in order to cool heat transmitted to the outer surface. An information processing apparatus that is detachable from an expansion device including an introduction port, and includes a first cooling fan that generates an exhaust flow for exhausting internal air, and heat generated in the expansion device. A heat conducting member that is in the vicinity and is transmitted to the outer surface of the expansion device, a fan restricting means that attenuates or stops the rotation speed of the first cooling fan when integrated with the expansion device, and a separation device from the expansion device. An exhaust port that is opened to discharge the exhaust flow generated by the first cooling fan to the outside and is closed when used integrally with the expansion device, and an expansion device When used separately from When used in an integrated state with the expansion device, the guide is opened to introduce the exhaust flow generated by the first cooling fan into the expansion device through the introduction port of the expansion device. And an exit.

  By adopting such a configuration, even when the information processing device is integrated with the expansion device and the CPU is fully operated, the heat conduction member of the information processing device radiates heat through the outer surface of the expansion device. It is possible to reduce the number of rotations of the first cooling fan provided in the information processing apparatus, and in some cases, it is possible to achieve noise reduction by stopping. Further, when the information processing apparatus is used separately from the expansion device, the exhaust port is opened, and the exhaust flow generated by the first cooling fan can be discharged through the exhaust port. Further, when the information processing device is used in an integrated manner with the expansion device, the exhaust port is closed and an exhaust flow is introduced into the expansion device through the outlet port, thereby the first cooling of the information processing device. The fan can also cool the inside of the expansion device.

  An information processing apparatus according to a third aspect of the present invention is an information processing apparatus that is attachable to and detachable from an expansion device further provided with a connection connector for connecting to the information processing device. A connector connection determination unit that determines whether the connection connector is used separately from the expansion device or integrated with the expansion device based on whether it is connected to the expansion device via the connection connector. And a cooling fan drive control unit that performs rotation control of the first cooling fan, and the fan regulating means opens or closes the exhaust port and the outlet port based on the determination result of the connector connection determination unit, so that the first cooling is performed. The fan rotation control is performed.

  In this case, it is determined whether or not the information processing device is integrated with the expansion device, and the exhaust port and the outlet port are automatically opened or closed, and the exhaust flow by the first cooling fan of the information processing device is supplied to the expansion device. When introduced, it is possible to cool the information processing apparatus and the expansion apparatus, and it is possible to achieve noise reduction by controlling the rotation of the first cooling fan.

  According to the present invention, it is an object to efficiently eliminate heat generated inside an information processing apparatus and attenuate noise associated with passage of an exhaust flow generated by a cooling fan to achieve noise reduction.

[First Embodiment]
A first embodiment of the present invention will be described with reference to FIGS.
The information processing system according to the first embodiment includes an information processing apparatus 1 and an expansion apparatus 2 that are detachably configured.
The information processing apparatus 1 includes a display unit 11 such as a liquid crystal display panel, a keyboard 12 in which a plurality of keys are arranged, a pointing device 13 including a touch panel, a trackball, and the like. A mother board (not shown) on which a memory and the like are mounted, a battery (not shown), and the like are incorporated.

  In addition, a cooling fan 14 that generates an exhaust flow for sucking air in the vicinity of a heat generating portion such as a CPU or a graphic chip and exhausting it outside is provided inside the information processing apparatus 1. As shown in FIG. 2, an outlet 15 for discharging the exhaust flow generated by the cooling fan 14 to the lower side of the information processing apparatus 1 is provided on the lower surface of the information processing apparatus 1. The outlet 15 can be configured to be closed when the information processing apparatus 1 is separated from the expansion apparatus 2 and used and opened when the information processing apparatus 1 is integrated with the expansion apparatus 2. .

  The expansion device 2 is connected to an AC adapter or the like to supply power to the information processing device 1, an external storage means such as a CD-ROM drive, a DVD drive, or a flexible disk drive, and a connection terminal for an external device. It includes various interface units. Further, a structure capable of receiving and physically integrating the information processing device 1 is formed on the upper surface of the expansion device 2, and the information processing device 1 is supplied with power when the information processing device 1 is integrated. Electrical connection is performed so that various data can be exchanged while supplying.

  The expansion device 2 is provided with an introduction port 20 for introducing the exhaust flow from the cooling fan 14 into the expansion device 2 at a position corresponding to the outlet 15 of the information processing device 1 (see FIG. 4). In addition, a silencer 21 for attenuating noise generated along with the passage of the exhaust flow introduced into the expansion device 2 is provided inside the introduction port 20. The silencer 21 includes, for example, a silencer in which a sound absorbing material such as glass wool or a ceramic sound absorbing plate is attached to the inner surface of the exhaust flow passage, or a fin that protrudes from the inner surface of the passage so as to attenuate the speed of the fluid passing therethrough. It can be set as this structure.

In such a first embodiment, when the information processing apparatus 1 is separated from the expansion apparatus 2 and used, the outlet 15 is closed as shown in FIG. As a result, the exhaust flow generated by the cooling fan 14 is discharged to the outside through the exhaust port 16 provided on the side surface of the information processing apparatus 1.
When the information processing device 1 and the expansion device 2 are integrated and used, as shown in FIG. 4, the exhaust port 16 is closed and the outlet port 15 is opened, so that the introduction port 20 of the expansion device 2 is opened. Is continued. Therefore, the exhaust flow generated by the cooling fan 14 is guided and silenced by the silencer 21 via the outlet 15 and the inlet 20, and then discharged to the outside of the expansion device 2.

Therefore, in the first embodiment, when the information processing apparatus 1 and the expansion apparatus 2 are used in an integrated state, the noise generated by the cooling fan 14 can be silenced by the silencer 21. There is no need to reduce the rotation speed, and even if the CPU performance is kept high, the cooling effect can be maintained and the noise can be suppressed.
[Second Embodiment]
A second embodiment of the present invention will be described with reference to FIGS.

Similarly to the first embodiment, the information processing system according to the second embodiment includes an information processing device 1 and an expansion device 2 that are detachably configured.
The information processing apparatus 1 includes a display unit such as a liquid crystal display panel, a keyboard in which a plurality of keys are arranged, a pointing device composed of a touch panel, a trackball, and the like (not shown), and has a CPU inside. And a mother board (not shown) on which a main memory and the like are mounted, a battery (not shown), and the like are incorporated.

In addition, a cooling fan 14 that generates an exhaust flow for sucking air in the vicinity of a heat generating portion such as a CPU or a graphic chip and exhausting it outside is provided inside the information processing apparatus 1. The exhaust flow generated by the cooling fan 14 is exhausted through an exhaust port (not shown) formed on the side surface of the information processing apparatus 1.
As shown in FIG. 6, a heat conduction member 17 that transfers heat generated inside the information processing device 2 to the lower surface of the information processing device 2 and the expansion device 2 are integrated on the lower surface of the information processing device 1. A connection connector 18 is provided for electrical connection.

The heat conducting member 17 is composed of silicon rubber, a heat pipe, or the like, and transfers heat generated in the vicinity of the CPU to the vicinity of the joint portion with the expansion device 2.
The connection connector 18 includes a power connector for receiving power supplied from the expansion device 2 side, a signal connector for transmitting / receiving data to / from the expansion device 2, and the like, and is integrated with the expansion device 2. Sometimes it is connected to a connection connector provided at a corresponding position on the expansion device 2.

The expansion device 2 is connected to an AC adapter or the like to supply power to the information processing device 1, an external storage means such as a CD-ROM drive, a DVD drive, or a flexible disk drive, and a connection terminal for an external device. It includes various interface units.
Further, a structure capable of receiving and physically integrating the information processing device 1 is formed on the upper surface of the expansion device 2, and the information processing device 1 is connected when the information processing device 1 is integrated. A connection connector 23 connected to the connector 18 is provided.

  Further, on the upper surface of the expansion device 2, a cooling unit 22 is disposed at a position corresponding to the heat conducting member 17 of the information processing device 1 when integrated with the information processing device 1. The cooling means 22 can be composed of a heat conductive member such as silicon rubber or a heat pipe whose upper surface is in contact with the heat conductor 17 and transfers heat to the expansion device 2 side, and has a heat dissipating fin projecting downward. It is also possible to have a configuration comprising

FIG. 7 shows a simplified block diagram of fan regulating means for controlling the rotation of the cooling fan 14.
The fan regulating means includes a power supply unit 31, a power management unit 32, a cooling fan drive control unit 33, and a connector connection detection unit 34.
The power supply unit 31 supplies power used by the information processing apparatus 1, and supplies power from a battery built in the information processing apparatus 1 when the information processing apparatus 1 is disconnected from the expansion device 2. When the information processing device 1 is integrated with the expansion device 2, the power supply supplied from the expansion device 2 is supplied.

The power management unit 32 manages the power supplied from the power supply unit 31 and manages the operating status of other functional units and the power status currently supplied.
The connector connection detection unit 34 determines whether or not the connection connector 18 of the information processing device 1 and the connection connector 23 of the expansion device 2 are connected, and transmits the determination result to the cooling fan drive control unit 33. To do.

The cooling fan drive control unit 33 controls the rotation of the cooling fan 14. The cooling fan drive control unit 33 controls the rotation of the cooling fan 14 based on the power state managed by the power management unit 32 and the connection determination result detected by the connector connection detection unit 34. A target rotational speed is determined and a control signal based on the target rotational speed is supplied to the cooling fan 14.
The cooling fan drive control unit 33 makes the supply power unstable when the CPU clock or drive voltage is suppressed or when the remaining battery level is low based on the power state managed by the power management unit 32. In some cases, the cooling fan 14 is configured to attenuate the rotational speed.

  When the connector connection detection unit 34 detects the connection state of the connection connectors 18 and 23, the cooling fan drive control unit 33 attenuates or stops the target rotational speed of the cooling fan 14. This is because, when the connector connection detection unit 34 detects the connection state, the heat conductor 17 of the information processing device 1 and the cooling means 22 of the expansion device 2 are connected, and the heat conductor 17 and the cooling means 22 are connected. This is because the heat generated in the information processing apparatus 1 can be radiated through. Therefore, even if the rotational speed of the cooling fan 14 is attenuated or stopped, the heat generated in the information processing apparatus 1 can be released, and the CPU can be maximized without reducing the cooling effect while suppressing noise. It can also be used by ability.

[Third Embodiment]
A third embodiment of the present invention will be described with reference to FIGS.
Similarly to the first embodiment, the information processing system according to the third embodiment includes an information processing device 1 and an expansion device 2 that are configured to be detachable.
The information processing apparatus 1 includes a display unit 11 such as a liquid crystal display panel, a keyboard in which a plurality of keys are arranged, a pointing device including a touch panel, a trackball, and the like (not shown). A mother board (not shown) on which a CPU, a main memory, and the like are mounted, a battery (not shown), and the like are incorporated.

In addition, a cooling fan 14 that generates an exhaust flow for sucking air in the vicinity of a heat generating portion such as a CPU or a graphic chip and exhausting it outside is provided inside the information processing apparatus 1. The exhaust flow generated by the cooling fan 14 is exhausted through an exhaust port (not shown) formed on the side surface of the information processing apparatus 1.
As shown in FIG. 9, a heat conduction member 17 that transmits heat generated inside the information processing device 2 to the lower surface of the information processing device 2 is provided on the lower surface of the information processing device 1.

The heat conducting member 17 is composed of silicon rubber, a heat pipe, or the like, and transfers heat generated in the vicinity of the CPU, graphic chip, or the like to the vicinity of the joint portion with the expansion device 2.
The expansion device 2 is connected to an AC adapter or the like to supply power to the information processing device 1, an external storage means such as a CD-ROM drive, a DVD drive, or a flexible disk drive, and a connection terminal for an external device. It includes various interface units.

Further, a structure capable of receiving the information processing apparatus 1 and physically integrating it is formed on the upper surface of the expansion apparatus 2.
Furthermore, a heat conduction means 24 is provided on the upper surface of the expansion device 2 at a position corresponding to the heat conduction member 17 of the information processing device 1 when integrated with the information processing device 1. The heat conducting means 24 can be configured by silicon rubber, a heat pipe or the like in the same manner as the heat conducting member 17 of the information processing apparatus 1.

Further, inside the expansion device 2, a cooling unit 22 to which heat from the information processing device 1 is transmitted via the heat conducting unit 24 is arranged. The cooling means 22 can be constituted by a second cooling fan that generates an exhaust flow for discharging the heat transmitted by the heat conducting means 24 to the outside.
The exhaust flow generated by the cooling means 22 (second cooling fan) is introduced into the second silencer means 25 provided adjacent to the cooling means 22. For example, the second silencer 25 attenuates the velocity of the fluid passing through a structure in which a sound absorbing material such as glass wool or a ceramic sound absorbing plate is attached to the inner surface of the exhaust flow passage, or a fin or the like protruding from the inner surface of the passage. The silencer can be configured as described above, and the sound generated with the passage of the exhaust flow generated by the cooling means 22 is attenuated.

In the third embodiment, the cooling means 22 may be configured as a heat sink or a heat pipe, and the second silencing means 25 may be omitted.
In the third embodiment, the information processing apparatus 1 can be efficiently cooled by the cooling means 22 provided on the expansion apparatus 2 side when the information processing apparatus 1 is integrated with the expansion apparatus 2. 1 can be configured to attenuate or stop the rotational speed of the cooling fan 14 built in the motor 1. Further, even when a second cooling fan is provided as the cooling means 22, it is possible to reduce the noise by the second silencer 25. Further, when a heat sink or a heat pipe is used as the cooling means 22, the internal space of the information processing apparatus 1 is reduced because the cooling means 22 is arranged on the expansion device 2 side even if the cooling means 22 is enlarged in order to increase the cooling efficiency. There is no pressure.

[Fourth Embodiment]
A fourth embodiment of the present invention will be described with reference to FIGS.
The information processing system according to the fourth embodiment includes an information processing device 1 and an expansion device 2 configured to be detachable in the same manner as in the first embodiment.
The information processing apparatus 1 includes a display unit 11 such as a liquid crystal display panel, a keyboard in which a plurality of keys are arranged, a pointing device (not shown) including a touch panel, a trackball, and the like. A mother board (not shown) on which a CPU, a main memory, and the like are mounted, a battery (not shown), and the like are incorporated.

  In addition, a cooling fan 14 that generates an exhaust flow for sucking air in the vicinity of a heat generating portion such as a CPU or a graphic chip and exhausting it outside is provided inside the information processing apparatus 1. On the lower surface of the information processing apparatus 1, as shown in FIG. 11, an outlet 15 for discharging the exhaust flow generated by the cooling fan 14 to the lower side of the information processing apparatus 1 and the inside of the information processing apparatus 2 are generated. And a heat conduction member 17 that transmits heat to the lower surface of the information processing apparatus 2.

The outlet 15 is configured to be closed when the information processing apparatus 1 is used separately from the expansion apparatus 2 and to be opened when the information processing apparatus 1 is integrated with the expansion apparatus 2.
The heat conducting member 17 is made of silicon rubber, a heat pipe, or the like, and transfers heat generated in the vicinity of the CPU, graphic chip, or the like to the vicinity of the joint portion with the expansion device 2.

  The expansion device 2 is connected to an AC adapter or the like to supply power to the information processing device 1, an external storage means such as a CD-ROM drive, a DVD drive, or a flexible disk drive, and a connection terminal for an external device. It includes various interface units. Further, a structure capable of receiving and physically integrating the information processing device 1 is formed on the upper surface of the expansion device 2, and the information processing device 1 is supplied with power when the information processing device 1 is integrated. Electrical connection is performed so that various data can be exchanged while supplying.

  The expansion device 2 is provided with an inlet (not shown) for introducing the exhaust flow from the cooling fan 14 into the expansion device 2 at a position corresponding to the outlet 15 of the information processing device 1. In addition, a silencer 21 for attenuating noise generated with the passage of the exhaust flow introduced into the expansion device 2 is provided inside the introduction port. The silencer 21 includes, for example, a silencer in which a sound absorbing material such as glass wool or a ceramic sound absorbing plate is attached to the inner surface of the exhaust flow passage, or a fin that protrudes from the inner surface of the passage so as to attenuate the speed of the fluid passing therethrough. It can be set as this structure.

Furthermore, a heat conduction means 24 is provided on the upper surface of the expansion device 2 at a position corresponding to the heat conduction member 17 of the information processing device 1 when integrated with the information processing device 1. The heat conducting means 24 can be configured by silicon rubber, a heat pipe or the like in the same manner as the heat conducting member 17 of the information processing apparatus 1.
Further, inside the expansion device 2, a cooling unit 22 to which heat from the information processing device 1 is transmitted via the heat conducting unit 24 is arranged. The cooling means 22 can be constituted by a second cooling fan that generates an exhaust flow for discharging the heat transmitted by the heat conducting means 24 to the outside.

  The exhaust flow generated by the cooling means 22 (second cooling fan) is introduced into the second silencer means 25 provided adjacent to the cooling means 22. For example, the second silencer 25 attenuates the velocity of the fluid passing through a structure in which a sound absorbing material such as glass wool or a ceramic sound absorbing plate is attached to the inner surface of the exhaust flow passage, or a fin or the like protruding from the inner surface of the passage. The silencer can be configured as described above, and the sound generated with the passage of the exhaust flow generated by the cooling means 22 is attenuated.

In such a third embodiment, when the information processing apparatus 1 is separated from the expansion apparatus 2 and used, the outlet 15 is closed. As a result, the exhaust flow generated by the cooling fan 14 is discharged to the outside through an exhaust port (not shown) provided on the side surface of the information processing apparatus 1.
When the information processing device 1 and the expansion device 2 are used in an integrated manner, the exhaust port is closed and the outlet port 15 is opened to be continuous with the introduction port of the expansion device 2. Therefore, the exhaust flow generated by the cooling fan 14 is guided and silenced by the silencer 21 through the outlet 15 and the inlet, and then discharged to the outside of the expansion device 2.

The heat generated in the information processing apparatus 1 is transmitted to the cooling means 22 of the expansion device 2 via the heat conducting member 17 and the heat conducting means 24. When the cooling means 22 is composed of a second cooling fan, the sound is silenced via the second silencer 25 and the exhaust flow is discharged outside the apparatus.
Therefore, in the third embodiment, when the information processing device 1 and the expansion device 2 are used in an integrated state, the cooling effect can be enhanced by the cooling fan 14 and the cooling means 22, The second silencer 25 can reduce the noise. Further, when the cooling means 22 is constituted by the second cooling fan, it is possible to further reduce the noise by decreasing or stopping the rotation speed of any one of the cooling fans.

  In addition, when a heat sink or a heat pipe is used as the cooling means 22, the internal space of the information processing apparatus 1 is reduced because the cooling means 22 is arranged on the expansion device 2 side even if the cooling means 22 is enlarged to increase the cooling efficiency. There is no pressure.

  According to the present invention, it is possible to efficiently eliminate heat generated inside the information processing apparatus and attenuate noise caused by the passage of the exhaust flow generated by the cooling fan to achieve silence.

It is an explanatory perspective view of a 1st embodiment of the present invention. It is a bottom view of an information processor. It is a partial longitudinal cross-sectional view of an information processing apparatus. It is a partial longitudinal cross-sectional view at the time of integration. It is a perspective view for explanation of a 2nd embodiment. It is a bottom view of an information processor. It is a control block diagram of a fan control means. It is a perspective view for explanation of a 3rd embodiment. It is a bottom view of an information processor. It is a perspective view for explanation of a 4th embodiment. It is a bottom view of an information processor.

Claims (3)

A heat conduction member for transmitting heat generated inside to the vicinity of the joint with the expansion device, a first cooling fan for generating an exhaust flow for exhausting internal air, and a guide for exhausting the exhaust flow. An information processing device with an exit and a detachable expansion device,
A first air flow that is provided on an outer surface corresponding to the heat conducting member when being integrated with the information processing device and that exhausts the heat to be discharged to cool the heat transmitted through the heat conducting member. 2 cooling means that are cooling fans;
An inlet that is provided on an outer surface corresponding to the outlet when integrated with the information processing device, and that introduces an exhaust flow discharged from the information processing device by the first cooling fan;
First silencing means for attenuating sound generated with the passage of the exhaust flow introduced from the inlet;
A second silencer for attenuating the sound generated with the passage of the exhaust flow generated by the second cooling fan;
An outlet for discharging the exhaust stream;
An expansion device comprising: It is detachable from an expansion device including a cooling means that is a second cooling fan that generates an exhaust flow that is discharged to the outside in order to cool the heat transmitted to the outer surface, and an introduction port that introduces an air flow inside. An information processing device,
A first cooling fan that generates an exhaust flow for exhausting internal air;
A heat-conducting member that transfers heat generated inside to the outer surface of the expansion device in the vicinity of the joint of the expansion device;
Fan regulating means for attenuating or stopping the rotational speed of the first cooling fan when integrated with the expansion device;
When used separately from the expansion device, the exhaust flow generated by the first cooling fan is opened to discharge to the outside, and when used in an integrated manner with the expansion device, it is closed. An exhaust port to
When used separately from the expansion device, it is closed, and when used integrated with the expansion device, the exhaust flow generated by the first cooling fan is introduced into the expansion device. An outlet opening that is opened for introduction into the interior of the expansion device via the mouth;
An information processing apparatus comprising: An information processing apparatus that is detachable from the expansion device further comprising a connection connector for connecting to the information processing apparatus,
A connector for connecting to the expansion device;
A connector connection determination unit that determines whether the expansion device is used separately from the expansion device or whether the expansion device is integrated with the expansion device based on whether the expansion device is connected to each other via a connection connector; ,
A cooling fan drive controller for controlling rotation of the first cooling fan;
Further comprising
The fan control unit opens or closes the exhaust port and the outlet port based on a determination result of the connector connection determination unit, and controls the rotation of the first cooling fan. Information processing device.

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