JP2000003231A - Information processing system having radiation accelerating function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the scale of a heat radiator of an information processor by forming a ventilating hole on a connection surface that is placed at the side of the information processor when this processor is mechanically connected to an extension device and providing a fan on a connecting surface placed at the side of the extension device that is set opposite to the ventilating hole. SOLUTION: An extension device 2 has a heat radiator to accelerate the heat radiating capability of an information processor 1 when the device 2 is connected to the processor 1. That is, a ventilating hole is drilled through a cabinet 1a of the processor 1 at a position opposite to a cabinet 2a of the device 2. The device 2 has a fan 2b at a position opposite to the ventilating hole to draw out the air warmed in the processor 1 through the ventilating hole. Meanwhile, the cabinet 2a has an opening part to take in the air warmed in the processor 1 to the inside of the device 2 and also an exhaust hole to exhaust the air taken in by the fan 2b through the opening part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an information processing apparatus,
The present invention relates to an information processing system that is connected to an information processing apparatus for the purpose of function expansion and includes an extension device that supplies power to the information processing apparatus. More specifically, the present invention relates to an information processing system including, for example, a notebook personal computer as an information processing device and a docking station as an extension device.

[0002]

2. Description of the Related Art A conventional information processing system comprising an information processing apparatus and an extension device is provided with a heat radiating device as necessary, and each heat radiating device independently radiates heat. Was. In this configuration, the heat radiating device included in the information processing device needs to have the ability to cope with any use situation. For example, when the information processing device is used alone, only a low power consumption operation is performed and a heat radiating device is not required. However, when the information processing device is connected to an extended device such as a printer or a display, the information processing device constitutes the C device.
Since the PU (central processing unit) performs a high power consumption operation, a heat dissipation device is required. Therefore, the information processing apparatus is provided with a heat radiating device capable of coping with even the highest power consuming operation, irrespective of the bias of the heat generation state, for example, in which the power consuming operation is relatively often performed. There is a need. Actually, when the heat radiator is designed in consideration of the case where the CPU performs a high power consumption operation, there is a problem that the heat radiator tends to be large.

As an example of a conventional temperature control method for an information processing system, there is a temperature control method for a computer system disclosed in Japanese Patent Application Laid-Open No. 6-301451. In this method, each device constituting the computer system is connected by a duct, and air, which is a refrigerant, flows to all the devices through the duct with one exhaust device, thereby promoting the heat radiation capability of all the devices. is there. Then, the room temperature at the place where the computer system is installed is kept constant by discharging the warmed air lastly to the outside of the room. This method is effective in terms of heat radiation efficiency because the means for promoting the heat radiation capability is one exhaust device.

[0004]

As described above, when a heat dissipation device is provided in an information processing device, considering that the heat dissipation device guarantees sufficient heat dissipation of the information processing device, the heat dissipation device is There is a problem in that the space is large and the space is large and the cost is high. On the other hand, when a heat radiating device is provided in the information processing device, it is desirable to use a heat radiating device as small as possible in consideration of securing the degree of freedom in designing the information processing device. There is a problem that a small-scale device cannot guarantee sufficient heat radiation of the information processing device.

The method disclosed in Japanese Patent Application Laid-Open No. 6-301451 can solve the above-mentioned problems, but it is necessary to connect ducts to both ends of the information processing device and the extension device. However, there is a problem that the degree of freedom with respect to the arrangement of the elements is reduced. Furthermore, since it is necessary to prevent air from entering and exiting at locations other than the predetermined openings provided in each device, there is a problem that the heat radiation effect is reduced as a result.

[0006] By the way, the role of the extension device connected to the information processing device is to supply power to the information processing device and to provide an interface with a device of the extension device. No contribution was made to the heat radiation of the processing unit. But,
As compared with the information processing device, the extension device has less restrictions on its shape and weight in terms of application, and can be equipped with a large-scale heat dissipation device. On the other hand, it is essential that the information processing device is small and light in use, and it is difficult to mount a large-scale heat radiation device. Therefore, it is conceivable to mount a heat radiator on the extension device to promote the heat radiating ability of the information processing device.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. By promoting the heat dissipation capability of an information processing device by using an extension device, the heat dissipation device in the information processing device can be reduced in size. It is an object to provide an information processing system that can be removed.

[0008]

According to a first aspect of the present invention, there is provided an information processing system comprising an information processing apparatus operable alone and an extension device to which the information processing apparatus is mechanically connected. An information processing system, wherein a ventilation hole is formed in a connection surface on the information processing device side when mechanically connected, and a fan is provided on a connection surface on the extension device side facing the ventilation hole. .

According to a second aspect of the present invention, in the information processing system according to the first aspect, when the information processing apparatus is mechanically connected to an extension device, a part of a cabinet of the information processing apparatus is provided. Has an opening mechanism. When the information processing device is connected to the extension device, the surface of the cabinet of the information processing device that is covered by the extension device or the connecting member (hereinafter, referred to as “covered surface”) is in the eyes and hands of the user. Do not touch. That is, as long as the information processing device is connected to the extension device, there is no problem in operating the information processing system even without the covering surface of the cabinet, and the heat dissipation capability of the information processing device is further promoted. Can be.

An information processing system according to a third aspect of the present invention is an information processing apparatus operable alone when connected to a battery or a power supply, and operable when connected to a power supply. An information processing system comprising an extension device having a function of supplying power to the information processing device by being electrically connected to the device, and a connection surface on the information processing device side when mechanically connected In the case where a ventilation hole is formed, a fan is provided on the connection surface of the extension device facing the ventilation hole, and the information processing device operates alone without being mechanically connected to the extension device. In the case where the power consumption is suppressed to a size corresponding to the heat dissipation capability of the information processing apparatus and the operation is performed in a state of being mechanically connected to the extension device, the power consumption is reduced by a mechanical connection with the extension device. And it has a power management function of adjusting the size corresponding to the heat radiation ability to be promoted by.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an information processing system with a heat dissipation promoting function according to the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of an information processing system with a heat dissipation promoting function according to the present invention.
FIG. 3 is an enlarged view illustrating an example of the information processing apparatus 1 included in the information processing system illustrated in FIG. 1 in more detail, and FIG. 3 illustrates an example of the extended device 2 included in the information processing system illustrated in FIG. It is an enlarged view shown in FIG. 1 and 3
An arrow A shown therein indicates a sliding direction when the information processing device 1 is moved to the extension device 2 side in order to connect the information processing device 1 to the extension device 2.

The information processing system includes an information processing apparatus 1 operable alone when a battery 3 is attached or connected to an AC power supply (AC power supply) via a dedicated connection cord 4 and a dedicated connection. AC via code 5
The information processing apparatus 1 is operable when connected to a power supply, and includes an extension device 2 having a function of supplying power to the information processing apparatus 1 by being electrically connected to the information processing apparatus 1.

The information processing apparatus 1 is, for example, a notebook personal computer and includes a CPU (not shown), a cabinet 1a, a display 1b, a touch pad 1c, a keyboard 1d, and the like. The cabinet 1a is not shown. , Memory, hard disk, flexible disk, speaker, modem, etc. A heat radiating device (not shown) such as a fin or a fan may be provided around the heat generating portion such as the CPU as necessary. The cabinet 1 a is provided with a ventilation hole 1 a 1 at a position facing the cabinet 2 a of the extension device 2 when the information processing device 1 is connected to the extension device 2.

The extension device 2 includes a terminal group for connecting peripheral devices such as a keyboard, a mouse, and a display, an extension card, an extension board, and the like, and may further include an external storage device.

The extension device 2 has a heat radiating device so that the heat dissipation capability of the information processing device 1 can be enhanced by the extension device 2 when the information processing device 1 is connected to the extension device 2.
As an example of the heat radiating device, a fan 2b provided at a position opposed to the ventilation hole 1a1 for sucking air warmed in the information processing device 1 from the ventilation hole 1a1 of the cabinet 1a of the information processing device 1 is provided. is there. Further, the cabinet 2a of the extension device 2 has an opening 2a1 for taking air warmed in the information processing device 1 into the cabinet 2a of the extension device 2, and a fan 2b through the opening 2a1. And an exhaust hole 2a2 for exhausting the air taken into the device.

The cabinet 1a of the information processing device 1
The information processing device 1 and the extension device 2 are respectively provided on surfaces (hereinafter, referred to as “connection surfaces”) 1as and 2as of the cabinet 2a of the extension device 2 that face each other when the information processing device 1 is connected to the extension device 2. In addition to transmitting and receiving signals to and from the extension device 2, when the information processing device 1 is connected to the extension device 2, connection terminals 1e and 2c are provided at positions facing each other. These connection terminals 1e and 2c are provided to supply the AC power to the information processing device 1 when the information processing device 1 is connected to the expansion device 2 and AC power is connected to the expansion device 2. Have been.

The extension device 2 is provided with a bottom plate 2d that supports the information processing device 1 when the information processing device 1 is connected to the extension device 2. The bottom plate 2d extends so as to protrude forward from the connection surface 2as of the cabinet 2a of the extension device 2.

The bottom plate 2d is composed of a plate portion 2d2 having a constant thickness and sliding portions 2d1 and 2d provided at both ends thereof.
And 3. As shown in the figure, the upper surfaces of the sliding portions 2d1 and 2d3 have a predetermined angle θ with respect to the bottom surfaces thereof.
It has a slope having. That is, the sliding section 2d1,
The thickness of 2d3 gradually increases as it approaches the connection surface 2as of the cabinet 2a from the tip. On the other hand, the upper surface of the central portion 2d2 is parallel to the bottom surface, and the thickness of the central portion 2d2 is uniform. Therefore,
The upper surface of the bottom plate 2d is in a state where the central portion 2d2 is recessed as compared with the sliding portions 2d1 and 2d3.

A mechanism (for example, a guide rail) that prevents the information processing apparatus 1 from shifting in a direction other than the sliding direction (the direction indicated by the arrow A) when the information processing apparatus 1 is connected to the extension device 2 is provided with a bottom plate 2d. It is more preferably provided on the upper surface of the sliding portions 2d1, 2d3. In addition, when the information processing apparatus 1 is used in a state where the information processing apparatus 1 is connected to the extension device 2, the mechanical connection between the information processing device 1 and the extension device 2 is ensured so that the information processing device 1 does not come off from the extension device 2. It is more preferable that a lock mechanism that can be made strong is provided on the bottom plate 2d.

The warmed air sucked into the extension device 2 passes through the extension device 2 and is discharged from the exhaust hole 2a2. For example, when there is a possibility that the expansion device 2 may be adversely affected because the temperature of the heated air is too high, etc.
It is preferable that the distance between the exhaust hole 2a2 of the extension device 2 and the fan 2b is as short as possible, and that no heat source is arranged therebetween. If the adverse effects cannot be avoided, FIG.
As shown in (1), a wind guide means may be provided between the opening 2a1 of the cabinet 2a of the extension device 2 and the exhaust hole 2a2. As an example of the air guiding means, there is a duct 2a3 using a heat insulating material as a material. In FIG. 4, the flow of air is indicated by an arrow B indicated by a broken line.

When it is necessary to provide a means for promoting heat dissipation of the extension device itself, as shown in FIG. 5, the fan 2b provided on the opening 2a1 side of the extension device 2 Provided on the side of the hole 2a2,
Air guide means may be provided between the air outlet 1 and the exhaust hole 2a2. As an example of the air guide means, there is a duct 2a4 using a heat insulating material as a material. This duct 2a4 has an extension device 2
A suction port 2a41 for sucking air inside is provided, and a duct 2a4 is arranged so as to pass around a place requiring heat radiation, and the expansion device 2 is connected through the suction port 2a41.
By sucking the air inside, the heat radiation of the extension device itself can be promoted. In FIG. 5, the flow of air is represented by an arrow C indicated by a broken line.

The diameter of the duct 2a4 shown in FIG. 5 is narrowed smoothly in front of the suction port 2a41 when viewed from the upstream side of the air flow, and the flow velocity near the suction port 2a41 increases, so that the vicinity of the suction port 2a41 is negative. Pressure. As a result, warm air around the suction port 2a41 is sucked into the duct 2a4 and discharged from the exhaust hole 2a2, so that heat radiation of the extension device can be promoted. As for the shape of the duct 2a4, a shape in which the flow of the air sucked in from the information processing device 1 is a straight line rather than a curve is preferable because the disturbance of the air flow is small and the heat radiation effect is high. When the temperature of the air sucked in from the information processing device 1 is higher than the temperature around the duct 2a4, it is preferable to use a material having heat insulating properties as the material of the duct 2a4 because the heat radiation effect becomes higher. The temperature of the air sucked from the device 1 is changed to the duct 2a.
When the temperature is lower than the temperature around 4, it is preferable to use a material having thermal conductivity as the material of the duct 2a4 because the heat radiation effect becomes higher.

The information processing apparatus 1 has a mechanism for opening a part of the cabinet 1a when connected to the extension device 2. When the information processing device 1 is connected to the extension device 2, the cabinet 1 of the information processing device 1
The bottom surface (covered surface) of a that is covered by the bottom plate 2d of the extension device 2 does not touch the eyes or hands of the user.
Therefore, in the present embodiment, as shown in FIG. 2, a part of the bottom surface of the cabinet 1a is
It consists of two.

The cabinet opening / closing lid 1a2 is, for example, a square plate member.
It is rotatably connected to a cabinet 1a of the information processing device 1, and has a claw 1a2 on another side opposite to one side thereof.
1 is formed. Further, a locking hole 1a3 is formed in the connection surface 1as of the cabinet 1a of the information processing device 1, and the hook 1a21 is hooked on the locking hole 1a3 to close the cabinet opening / closing lid 1a2. Can be kept. A projection 2a5 is provided on the connection surface 2as of the cabinet 2a of the extension device 2. The protruding portion 2a5 allows the information processing device 1 to be connected to the extension device 2
When the information processing device 1 is connected to the extension device 2, the locking hole 1 a is provided at a position facing the locking hole 1 a 3 of the cabinet 1 a of the information processing device 1.
The claw 1a21 fits into the a3 and can be pushed inside the cabinet 1a.

When the cabinet opening / closing lid 1a2 is opened, external air can easily enter the information processing apparatus 1 and a heat radiation effect can be obtained. However, if the heated air can be efficiently discharged to the outside, the heat radiation effect can be further improved. Goes up.
Therefore, the ventilation hole 1a1 of the information processing device 1 is
It is preferable that the fan 2b is large enough to quickly discharge the air heated inside the information processing apparatus 1, and the structure inside the information processing apparatus 1 is such that the air from the cabinet opening / closing lid 1a2 to the ventilation hole 1a1 is It is preferable not to have a shield or a compartment that blocks the flow path.

The heat radiation effect due to the opening of the cabinet opening / closing lid 1a2 is caused by the reason that the information processing device 1 is mechanically connected to the extension device 2 and that no AC power is connected to the extension device 2. It is also obtained when the device 1 is driven by the battery 3. Therefore, the degree to which the heat dissipation of the information processing device 1 is promoted can be divided into three stages. First, as a first stage, the information processing apparatus 1
May operate alone, that is, heat dissipation may not be promoted. As a second stage, the information processing apparatus 1
A connected mechanically to the extension device 2
There is a case where the heat radiation is promoted only by not being driven by the C power supply, that is, only by opening the cabinet opening / closing lid 1a2.
Is mechanically and electrically connected to the extension device 2 and A
In some cases, heat dissipation is promoted by being driven by the C power supply, that is, by opening the cabinet opening / closing lid 1a2 and exhausting by the fan 2b.

In the information processing system of the present invention, the information processing device 1 has a power management function. This function constantly monitors the operation status of the information processing system, and delays or stops the operation of devices and parts that do not need to operate. As described above, by selectively slowing or stopping a part of the operation, the supply of power to unnecessary parts can be stopped, and the power consumption of the entire information processing apparatus 1 can be reduced. As a result, Heat generation in the information processing device 1 can be suppressed. This power management function, specifically,
When the information processing device 1 operates alone without being connected to the extension device 2, the power consumption is suppressed to a size corresponding to the heat dissipation capability of the information processing device 1, and the information processing device 1 is connected to the extension device 2. When the operation is performed in a state in which the cabinet opening / closing lid 1a2 is opened or the fan 2b
Is adjusted to a size corresponding to the heat dissipation ability promoted by the rotation. By providing this function, the heat radiating device provided in the information processing apparatus 1 may be designed to be able to cope with heat generated while power consumption is reduced, so that the size can be reduced.

If the power management function is defined by a different definition from that of the above-described specific example, the temperature of each part of the information processing system is constantly monitored, and if there is a place where it is necessary to suppress heat generation, the relevant part is related. It can be defined as slowing or stopping the operation of the device or part that performs the operation. In any of the definitions, this power management function enables the heat radiation device provided in the information processing device 1 to be downsized. The power management function is provided by the information processing device 1 and the extension device 2.
When the connection with is detected, the suppression of the power consumption is released.
At this time, the fan 2b of the extension device 2 starts to rotate,
The increase in heat generated by canceling the suppression of power consumption is offset by the promotion of heat dissipation by the extension device 2.

Further, the rotation speed of the fan 2b may be the maximum speed at all times, or may be a speed controlled as needed by the power management function to an optimum state. The distance between the opposing fan 2b and the ventilation hole 1a1 of the information processing device 1 is
The narrower the space, the more air that can be sucked out of the cabinet 1a of the information processing apparatus 1 and the less air flows into the expansion device 2 from the outside, thus improving the heat radiation efficiency. Therefore, when the information processing device 1 and the extension device 2 are connected to each other, the information processing device 1 and the extension device 2 have a structure that can be more closely attached to each other. It is preferable to provide a sealing means for increasing the airtightness between the ventilation hole 1a1 of the processing apparatus 1 and the opening 2a1 of the extension device 2. As an example of the sealing means, there is a cylindrical connecting member whose one end is fixed to or fitted in the opening 2a1. In this case, the length of the connection member needs to be set such that the other end is in close contact with the ventilation hole 1a1 of the information processing device 1 when the information processing device 1 and the extension device 2 are connected. . An information processing device 1 such as a CPU;
The part of the information processing device 1 where the heat is to be radiated particularly is the ventilation hole 1a.
In the case of being separated from 1, the air guiding means is preferably provided between the portion and the ventilation hole 1a1.

Here, the procedure for opening the cabinet opening / closing lid 1a2 when the information processing apparatus 1 is connected to the extension device 2 will be described with reference to FIGS. 1, 2, 3, and 6, and then FIG. The procedure for closing the cabinet opening / closing lid 1a2 when removing the information processing apparatus 1 from the extension device 2 will be described with reference to FIGS.

In order to connect the information processing device 1 to the extension device 2, first, the information processing device 1 is slid in the direction indicated by arrow A while using the upper surfaces of the sliding portions 2d1 and 2d3 of the bottom plate 2d as the sliding surfaces ( Step S61). When the user further slides, the protrusion 2a5 of the extension device 2 pushes the claw 1a21 of the cabinet opening / closing lid 1a2, and the claw 1a21
Is removed from the locking hole 1a3 (step S62). At the same time, the cabinet opening / closing lid 1a2 naturally opens toward the center 2d2 of the bottom plate 2d (in the direction indicated by the arrow D1) by its own weight (step S63), and comes into contact with the upper surface of the center 2d2 of the bottom plate 2d (step S64). Open / close lid 1a
2 is completely open.

On the other hand, to remove the information processing device 1 from the extension device 2, first, the information processing device 1 is turned in the opposite direction to the direction indicated by arrow A while using the upper surfaces of the sliding portions 2d1 and 2d3 of the bottom plate 2d as sliding surfaces. (Step S7)
1). When the door is slid, the recess of the central portion 2d2 of the bottom plate 2d gradually becomes shallow, so that the cabinet opening / closing lid 1a2 is pushed up in the direction shown by the arrow D2 (step S7).
2). If you slide it further, the cabinet opening / closing lid 1
The claw 1a21 of a2 fits into the locking hole 1a3 (step S73), and the cabinet opening / closing lid 1a2 is completely closed.

According to the above-described mechanism, when the information processing apparatus 1 is lifted while the information processing apparatus 1 is being slid to remove it from the extension device 2, the cabinet opening / closing lid 1a2
Cannot be closed automatically. Therefore, it is necessary to slide the information processing device 1 in a state where the bottom surface of the information processing device 1 is in close contact with the upper surfaces of the sliding portions 2d1 and 2d3 of the bottom plate 2d. Therefore, it is necessary to provide a mechanism for preventing the information processing apparatus 1 from being lifted. As an example of this mechanism, there is a mechanism in which a fixing device is provided in the extension device 2 to suppress the upper surface of the information processing device 1. Further, as another example, a groove is provided in the bottom surface of the information processing device 1 in parallel with the sliding direction, while the sliding portions 2d1, 2d3 of the bottom plate 2d are provided.
In some cases, a rail having a shape that fits into a groove on the bottom surface of the information processing apparatus 1 is provided on the upper surface of the information processing apparatus 1. In this case, in order to prevent the information processing device 1 from lifting during the slide,
The cross-sectional shape of the groove provided on the bottom surface of the information processing device 1 needs to be trapezoidal in which the upper side is shorter than the lower side.

As described above, there are three stages in the degree to which the heat radiation of the information processing apparatus 1 is promoted. Next, a procedure for adjusting the power management function corresponding to these three stages will be described with reference to FIG.

First, it is determined whether or not the information processing device 1 is mechanically connected to the extension device 2 (step S8).
1). If it is not mechanically connected (if the result of the determination in step S81 is NO), heat dissipation is not promoted at all, that is, power management is strengthened and power consumption is suppressed as much as possible (step S82). ). On the other hand, if it is mechanically connected (if the determination result in step S81 is YES), it is further determined whether or not the information processing apparatus 1 is electrically connected to the extension device (step S83). If it is not electrically connected (if the determination result in step S83 is NO), heat dissipation is promoted only by opening the cabinet opening / closing lid 1a2, so that power management is weakened and power consumption is reduced to some extent. It is suppressed (step S84). on the other hand,
If it is electrically connected (if the determination result in step S83 is YES), the cabinet opening / closing lid 1
Since the heat radiation is promoted by the opening of a2 and the exhaust by the fan 2b, the power consumption is not reduced by eliminating the power management (step S85).

When the information processing apparatus 1 enables advanced temperature detection by the power management function, there is no need to adjust the information to the three stages described above. In such a case, for example, by suppressing power consumption so as to maintain a predetermined constant temperature, optimal power management can always be performed.

[0038]

As described above, according to the first aspect of the present invention,
The information processing system described above is an information processing system including an information processing device that can operate alone and an extension device to which the information processing device is mechanically connected, and the information processing system when the information processing device is mechanically connected. Since a ventilation hole is formed in the connection surface of the information processing device and a fan is provided in the connection surface of the extension device facing the ventilation hole, the heat radiation device of the information processing device can be reduced in size. it can.

Further, since the information processing system according to the second aspect of the present invention has a mechanism for opening a part of the cabinet of the information processing apparatus, the information processing apparatus is electrically connected to the extension device. If not, heat dissipation can be promoted.

An information processing system according to a third aspect of the present invention is operable by being connected to a battery or a power supply and operating independently of the information processing apparatus. An information processing system comprising an extension device having a function of supplying power to the information processing device by being electrically connected to the information processing device, wherein the information processing device has A ventilation hole is formed in the connection surface, and a fan is provided on the connection surface of the extension device facing the ventilation hole, and the information processing device operates alone without being mechanically connected to the extension device. In the case where the power consumption is suppressed to a size corresponding to the heat dissipation capability of the information processing apparatus, and the power consumption is controlled by a mechanical device connected to the extension device, the Since those having a power management feature of adjusting the size corresponding to the heat radiation ability to be promoted by Do connections can be small on or removing the heat dissipation device of the information processing apparatus.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of an information processing system with a heat dissipation promoting function of the present invention.

FIG. 2 is an enlarged view showing an example of an information processing device constituting the information processing system shown in FIG. 1 in more detail;

FIG. 3 is an enlarged view showing an example of an extended device constituting the information processing system shown in FIG. 1 in more detail;

FIG. 4 is a cross-sectional view illustrating an example of a wind guide provided between an opening and an exhaust hole of the extension device illustrated in FIG. 3;

FIG. 5 is a cross-sectional view showing another example of a baffle provided between an opening and an exhaust hole of the extension device shown in FIG. 3;

6 is a flowchart showing a procedure for opening a cabinet opening / closing lid when the information processing apparatus shown in FIG. 1 is connected to an extension device.

FIG. 7 is a flowchart showing a procedure for closing a cabinet opening / closing lid when the information processing apparatus shown in FIG. 1 is detached from an extension device.

8 is a flowchart showing a procedure for adjusting a power management function of the information processing system shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Information processing apparatus 1a Cabinet 1b Display 1c Touch pad 1d Keyboard 1e Connection terminal 2 Expansion device 2a Cabinet 2b Fan 2c Connection terminal 2d Bottom plate

Claims (3)

[Claims] An information processing system comprising an information processing device operable alone and an extension device to which the information processing device is mechanically connected, wherein the information processing when the information processing device is mechanically connected An information processing system, wherein a ventilation hole is formed on a connection surface on the device side, and a fan is provided on a connection surface on the extension device side facing the ventilation hole. 2. The information processing system according to claim 1, further comprising a mechanism for opening a part of a cabinet of the information processing apparatus when the information processing apparatus is mechanically connected to an extension device. . 3. An information processing apparatus operable alone by being connected to a battery or a power supply, and operable by being connected to a power supply, and information being operable by being electrically connected to the information processing apparatus. An information processing system comprising an extension device having a function of supplying power to the processing device, wherein a ventilation hole is formed in a connection surface of the information processing device when mechanically connected, and A fan is provided on the connection surface on the side of the extension device facing the hole, and when the information processing device operates alone without being mechanically connected to the extension device, the heat dissipation capability of the information processing device has the power consumption. When operating in a state of being mechanically connected to the extension device, the power consumption is reduced to a size corresponding to the heat dissipation capability promoted by the mechanical connection with the extension device. The information processing system characterized by having a power management feature of adjusted to.