JP2006203666A - Euthermic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an euthermic device such as an information processing device, etc. by which high heat dissipation effect can be obtained using a speaker. <P>SOLUTION: The euthermic device is provided with a speaker main body prepared in an enclosure, a 1st valve for intake air prepared in the enclosure, and a 2nd valve for gas discharge prepared in the enclosure. It has also a speaker device which intakes from the 1st valve, and exhausts from the 2nd valve by vibrating the speaker main body, and performs enforced ventilation operation, an euthermic component which emits heat, and a heat sink in which an end side is close to the euthermic component, and another end side is close to the speaker device. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a heat generating device, and more particularly to a heat generating device such as a small information processing device having a speaker device.

  In a small information processing apparatus, heat generated in the information processing apparatus is dissipated by various methods. For example, the generated heat is transmitted to the housing of the information processing device, and heat is dissipated from the housing, or an opening is provided in the housing, and heat is dissipated from the opening by natural ventilation. Furthermore, when heat dissipation is not in time with these methods, it is possible to efficiently dissipate heat by providing a small fan in the information processing device and forcibly sucking and exhausting air inside the information processing device. I am doing so.

  However, when heat is transmitted to the housing of the information processing apparatus, there is a problem that the amount of heat that can be radiated from the housing is relatively small. In addition, in the case where an opening is provided in the housing, there is a possibility that effective ventilation cannot be performed unless the use posture of the information processing apparatus is determined. That is, for example, when the opening is provided on the right side of the casing and the information processing apparatus is used by placing the table on the table so that the right side of the casing faces downward, the opening is closed. It will come off and effective ventilation will not be possible. In addition, dust or dust may enter the information processing apparatus from the opening, which is not preferable from the viewpoint of durability of the information processing apparatus. Furthermore, in order to comply with UL 60950, which is one of the safety standards for information processing devices, there is a restriction that the width of the opening must be 1 mm or less.

  When forced intake / exhaust is performed using a small fan, power is required to drive the fan, which increases the power consumption of the information processing device, and the time that can be driven by the battery of the information processing device. There is a problem of shortening. Further, the volume of the fan itself in the information processing apparatus increases, which hinders downsizing of the information processing apparatus. In addition, there is a problem that fan driving noise is generated, which is annoying.

In order to solve such a problem, there is a technique in which a speaker provided in the information processing apparatus is used to perform forced intake / exhaust inside the information processing apparatus (Patent Document 1: Japanese Patent Application Laid-Open No. 2004-274326). Patent Document 2: JP-A-9-163271). However, there is a problem in that the intake / exhaust capacity of the speaker is not necessarily high, and a sufficient heat dissipation effect cannot be obtained.
JP 2004-274326 A JP-A-9-163271

  Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a heat-generating device such as an information processing device that can obtain a high heat dissipation effect using a speaker.

In order to solve the above problems, an exothermic device according to the present invention is provided.
A speaker main body provided in the enclosure; a first valve for intake provided in the enclosure; and a second valve for exhaust provided in the enclosure, wherein the speaker main body vibrates. A forced intake / exhaust operation in which air is taken in from the first valve and exhausted from the second valve;
Exothermic components that emit heat; and
A heat sink, wherein one end side is close to the exothermic component and the other end side is close to the speaker device;
It is characterized by providing.

  In this case, the other end side of the heat sink may be positioned in the vicinity of the first valve.

  Or the said other end side of the said heat sink is in contact with the said enclosure of the said speaker apparatus, The heat generating apparatus of Claim 1 characterized by the above-mentioned.

  Alternatively, the heat generating device according to claim 1, wherein the other end side of the heat sink is located at a predetermined distance from the enclosure of the speaker device.

  In these cases, a speaker drive signal output unit that outputs an intake / exhaust signal for causing the speaker device to perform the forced intake / exhaust operation may be further provided.

  In this case, the speaker drive signal output unit may steadily output the intake / exhaust signal to the speaker device.

  Alternatively, the speaker drive signal output unit may combine an output signal for reproducing audio data and the intake / exhaust signal and output the combined signal to the speaker device.

Alternatively, it further comprises a control unit for controlling whether or not to output the intake / exhaust signal from the speaker drive signal output unit to the speaker device,
The control unit determines whether audio data is being reproduced from the speaker device, and if the audio data is not being reproduced, causes the speaker drive signal output unit to output the intake / exhaust signal. May be.

  In this case, when the audio data is being reproduced from the speaker device, the control unit analyzes the audio data and determines whether or not the forced intake / exhaust operation is performed in the speaker device by reproducing the audio data. When the forced intake / exhaust operation is determined not to be performed, the speaker drive signal output unit outputs the intake / exhaust signal, and the forced intake / exhaust operation is determined to be performed. The speaker drive signal output unit may not output the intake / exhaust signal.

  Alternatively, when audio data is being reproduced from the speaker device, the control unit analyzes the audio data and determines whether the forced intake / exhaust operation is performed in the speaker device by reproducing the audio data. If it is determined that the forced intake / exhaust operation is not performed, the audio data is changed so that the forced intake / exhaust operation is performed by the speaker device, and the speaker drive signal output unit is The exothermic device according to claim 8, wherein the intake / exhaust signal is not output.

A temperature detector for detecting the temperature inside the exothermic device;
A control unit for controlling whether to output the intake / exhaust signal from the speaker drive signal output unit to the speaker device;
The control unit may cause the speaker driving signal output unit to output the intake / exhaust signal only when the temperature detected by the temperature detection unit is higher than a predetermined temperature.

Alternatively, a temperature detection unit that detects the temperature inside the exothermic device,
A control unit for controlling whether to output the intake / exhaust signal from the speaker drive signal output unit to the speaker device;
When the temperature detected by the temperature detection unit is higher than a predetermined temperature, the control unit determines whether the audio data is being reproduced from the speaker device, and if the audio data is not being reproduced, The speaker drive signal output unit outputs the intake / exhaust signal,
When audio data is being reproduced from the speaker device, the control unit analyzes the audio data and determines whether the forced intake / exhaust operation is performed in the speaker device by reproducing the audio data. If it is determined that the forced intake / exhaust operation is not performed, the speaker drive signal output unit outputs the intake / exhaust signal, and if it is determined that the forced intake / exhaust operation is performed, the speaker The drive signal output unit may not output the intake / exhaust signal.

  The speaker drive signal output unit may output the intake / exhaust signal having a frequency outside the human audible range.

  The speaker device may be provided exclusively for the forced intake / exhaust operation without reproducing the audio data.

The exothermic device according to the present invention comprises:
A speaker main body provided in the enclosure; a first valve for intake provided in the enclosure; and a second valve for exhaust provided in the enclosure, wherein the speaker main body vibrates. A forced intake / exhaust operation in which air is taken in from the first valve and exhausted from the second valve;
An exothermic component provided within the enclosure for generating heat;
A housing for storing the speaker device and the heat-generating component;
It is characterized by providing.

[First Embodiment]
FIG. 1 is a block diagram illustrating an example of the internal configuration of the information processing apparatus 10 according to the present embodiment. This information processing apparatus 10 is an example of a heat generating device having a speaker device.

  As shown in FIG. 1, the information processing apparatus 10 includes a main CPU 20, a hard disk drive 22, a USB (Universal Serial Bus) controller 24, and a flash memory 26, which are connected to each other via an internal bus. Has been.

  The USB controller 24 is connected to a connector 28 to which a USB cable is connected. The hard disk drive 22 and the flash memory 26 constitute a rewritable nonvolatile storage device in the present embodiment. In the present embodiment, it is assumed that the main CPU 20 and the USB controller 24 are main heat sources.

  A sub CPU 30, an SDRAM (Synchronous DRAM) 32, a display unit 34, and a speaker drive signal output unit 36 are connected to the main CPU 20. The sub CPU 30 mainly controls processing that requires real-time performance, and, for example, a keyboard 40 is connected thereto. The display unit 34 is a so-called display, and includes, for example, an LCD (Liquid Crystal Display) panel. A speaker device 42 is connected to the speaker drive signal output unit 36.

  The information processing apparatus 10 further includes a battery 50 and a voltage conversion supply circuit 52. The voltage conversion supply circuit 52 receives supply of power from the battery 50, converts it into various voltages required inside, and supplies it to each unit.

  FIG. 2 is a block diagram illustrating an example of an internal layout in the information processing apparatus 10 of FIG. As shown in FIG. 2, in the present embodiment, the components of the information processing apparatus 10 are stored inside the housing 60. The housing 60 may or may not have a sealing property. However, in order to efficiently perform heat radiation by forced intake and exhaust of the speaker device 42, it is desirable that the housing 60 has a certain degree of sealing property.

  A display unit 34 is provided on the left side of the housing 60 in the drawing. A hard disk drive 36 is provided on the back side of the display unit 34. On the other hand, a speaker device 42 is provided on the right side of the housing 60 in the drawing. The speaker device 42 includes an enclosure 62 and a speaker main body 64 stored in the enclosure 62. The enclosure 62 is provided with a first valve 66 and a second valve 68. The first valve 66 is a valve that allows only inflow of air from the outside to the inside of the enclosure 62, and vice versa, and prevents outflow of air from the inside of the enclosure 62 to the outside. On the other hand, the second valve 68 is a valve that allows only the outflow of air from the inside of the enclosure 62 to the outside, and vice versa, the inflow of air from the outside to the inside of the enclosure 62 is blocked.

  For this reason, in the enclosure 62, a flow is formed in which the air inside the housing 60 flows into the enclosure 62 from the first valve 66 and flows out of the housing 60 from the second valve 68. The first valve 66 and the second valve 68 can be constituted by, for example, valves used for a photographic blower. A battery 50 is disposed below the speaker device 42.

  A substrate 70 and a heat sink 72 are provided between the speaker device 42 and the hard disk drive 36. Electronic components such as ICs are arranged on both the front surface and the back surface of the substrate 70. In the present embodiment, in particular, the electronic component and the heat sink 72 are arranged so that one end side of the heat sink 72 is close to the main CPU 20 and the USB controller 24 that are considered to be main heat sources. Here, that one end side of the heat sink 72 is close to the main CPU 20 and the USB controller 24, the one end side of the heat sink 72 may be in direct contact with the main CPU 20 or the USB controller 24 as shown in FIG. As shown in FIG. 3, it means that the main CPU 20 and the USB computer 24 may be located at a predetermined distance instead of being in direct contact with each other.

  The other end of the heat sink 72 is arranged so as to be close to the speaker device 42. Here, that the other end side of the heat sink 72 is close to the speaker device 42, the other end side of the heat sink 72 may be in direct contact with the enclosure 62 of the speaker device 42 as shown in FIG. As shown in FIG. 2, this means that the speaker device 42 may be positioned at a predetermined distance from the enclosure 62 instead of being in direct contact. In particular, in the present embodiment, as shown in FIG. 2, the other end side of the heat sink 72 extends to the vicinity of the air inlet of the first valve 66. Therefore, the heat of the main CPU 20 and the USB controller 24 is transmitted to the other end side of the heat sink 72, and air is sucked into the first valve 66, whereby the other end side of the heat sink 72 is cooled. The main CPU 20 and the USB controller 24 can dissipate heat.

  Next, based on FIG. 4, the principle that the speaker device 42 forcibly intakes and exhausts air will be described. As shown in FIG. 4, the diaphragm 80 of the speaker body 64 is at position 1 when the speaker body 64 is stationary. When an analog signal is input to the speaker main body 64, the diaphragm 80 moves to the position 2. At this time, the air in the enclosure 62 is compressed and discharged from the second valve 68.

  Subsequently, the diaphragm 80 moves to position 3. At this time, the inside of the enclosure 62 has a negative pressure and is sucked from the first valve 66. The vibration plate 80 repeats this operation, whereby air intake / exhaust circulation in the enclosure 62 is configured. As a result, the air in the housing 60 is forcibly exhausted.

  In other words, when a signal is applied to the speaker main body 64, the vibration plate 80 moves between the position 2 and the position 3 in amplitude. For this reason, the volume surrounded by the position 2 and the position 3 of the diaphragm 80 is the volume of air exhausted at a time.

  FIG. 5 is a diagram illustrating an example of an internal configuration of the speaker drive signal output unit 36. As shown in FIG. 5, the speaker drive signal output unit 36 includes a digital / analog converter 100, an amplifier 102, an oscillator 104, an amplifier 106, and a coupler 108.

  Digital audio data is input to the digital / analog converter 100 from the main CPU 20. Here, the voice data is a broad concept including data such as human voice and music. The digital audio data is converted into an analog signal by the digital / analog converter 100 and output.

  In the oscillator 104, an analog signal having a predetermined frequency (for example, 60 Hz) is generated and output to the amplifier 106. The analog signal generated by the oscillator 104 is a signal having a frequency outside the audible range that cannot be heard by the human ear. In general, this frequency is preferably 20 Hz to less than f0 (minimum resonance frequency) of the speaker. The amplifier 106 amplifies this analog signal and outputs it to the coupler 108. The amplification factor in the amplifier 106 is predetermined in design.

  In the combiner 108, the analog signal from the digital / analog converter 100 and the analog signal from the amplifier 106 are combined and output to the amplifier 102. The amplifier 102 amplifies the input analog signal and outputs it to the speaker device 42 described above. The amplification factor in the amplifier 102 varies depending on the volume set in the information processing apparatus 10 by the user.

  With this configuration, the speaker device 42 can be driven by mixing the audio data reproduction signal and the intake / exhaust signal.

  In the speaker drive signal output unit 36 shown in FIG. 5, the amplifier 106 can be omitted as shown in FIG. In this case, the analog signal for intake / exhaust of a predetermined frequency generated by the oscillator 104 is input to the coupler 108 without being amplified, and after being combined with the analog signal for audio data reproduction by the coupler 108, the amplifier Amplified at 102.

  In the speaker drive signal output unit 36 shown in FIG. 5, the coupler 108 can be moved to the subsequent stage of the amplifier 102 as shown in FIG. In this case, the combiner 108 combines the audio signal reproduction analog signal amplified by the amplifier 102 with the analog signal for intake / exhaust of a predetermined frequency amplified by the amplifier 106. With this configuration, an analog signal suitable for intake / exhaust can be supplied to the speaker device 42 without being affected by the volume set by the user, and the speaker body 64 can be used for intake / exhaust. Appropriate vibration can be achieved.

  Next, the conditions under which analog signals for intake and exhaust should be applied to the speaker device 42 will be examined. The simplest technique is a technique in which an analog signal for intake and exhaust is steadily applied from when the information processing apparatus 10 is turned on until the power is turned off. In this case, an analog signal for intake and exhaust is continuously supplied to the speaker device 42 while the audio data is being output from the speaker device 42 or not.

  As another method, while the audio data is not being reproduced by the speaker device 42, the speaker device 42 is vibrated by the analog signal for intake and exhaust from the oscillator 104, and the audio data is reproduced by the speaker device 42. In the meantime, there is also a method of vibrating the speaker device 42 by the sound data.

  FIG. 8 is a flowchart illustrating an example of specific processing for realizing this method. In the present embodiment, the intake / exhaust signal supply process shown in FIG. 8 is a process realized by the main CPU 20 reading and executing the intake / exhaust signal supply program stored in the hard disk drive 22. . The intake / exhaust signal supply process is a process that is regularly executed.

  As shown in FIG. 8, in this intake / exhaust signal supply process, first, the main CPU 20 determines whether or not audio data is currently being reproduced from the speaker device 42 (step S10). This determination is made based on, for example, whether the audio data is being output from the main CPU 20 to the speaker drive signal output unit 36.

  When the audio data is not reproduced by the speaker device 42 (step S10: NO), the main CPU 20 turns on the oscillator 104 or maintains the on state of the oscillator 104 (step S12). As a result, an analog signal for intake / exhaust is output from the oscillator 104 and the speaker device 42 performs the intake / exhaust operation.

  On the other hand, when it is determined in step S10 that the audio data is being reproduced (step S10: YES), the main CPU 20 can intake and exhaust the output audio data. It is determined whether it is a sound (step S14). Specifically, since a sound with a low frequency is considered to enhance the intake / exhaust capacity of the speaker device 42 over a sound with a high frequency, a sound with a frequency lower than a predetermined frequency (for example, , 500 Hz) is included.

  If the sound data is a sound that allows intake and exhaust (step S14: YES), the main CPU 20 turns off the oscillator 104 or maintains the off state (step S16). For this reason, the speaker device 42 vibrates based on the audio data, but the speaker device 42 performs intake and exhaust while making this vibration. And it returns to the process of step S10 mentioned above.

  On the other hand, if it is determined in step S14 that the sound data is a sound that cannot be sucked or exhausted (step S14: NO), the main CPU 20 turns off the oscillator 104 or maintains the off state. (Step S18). Then, the main CPU 20 changes the sound data so that the sound can be sucked and exhausted, and then outputs the sound data to the speaker drive signal output unit 36 (step S20). For example, a new low frequency sound outside the audible area is added to the audio data, or a low frequency sound existing in the audio data is increased. Therefore, the speaker device 42 performs an intake / exhaust operation based on the audio data output from the main CPU 20. And it returns to the process of step S10 mentioned above.

  As described above, according to the information processing apparatus 10 according to the present embodiment, the speaker apparatus 42 can be used as a means for performing forced intake / exhaust to dissipate heat inside the information processing apparatus 10. Particularly, since one end side of the heat sink 72 is brought close to the main CPU 20 and the USB controller 24 considered as heat generation sources, and the other end side of the heat sink 72 is brought close to the speaker device 42, the speaker having only a small suction capability. Even with the device 42, efficient heat dissipation can be realized.

  Further, since the intake and exhaust are performed using the speaker device 42, it is not necessary to provide an opening in the housing 60 as in the prior art, and dust and dust can be prevented from entering the information processing apparatus 10. it can. In addition, since the second valve 68 is opened when the air inside the speaker device 42 is discharged to the outside, it is possible to prevent dust and dust from entering the speaker device 42.

  Further, since it is not necessary to turn the motor as compared with a forced intake / exhaust system using a fan, power consumption can be reduced and noise can be prevented from being generated. Furthermore, since a new space for the forced intake / exhaust system is not required, space saving can be achieved.

  In addition, even in the information processing apparatus 10 whose use posture is not fixed, it is considered that the user rarely places the speaker apparatus 42 on a table or the like so that the speaker apparatus 42 faces downward. It is considered that there is very little possibility that the speaker device 42 is blocked.

[Second Embodiment]
In the second embodiment, the first embodiment described above is modified to use the speaker device 42 only when the temperature inside the information processing apparatus 10 becomes higher than a predetermined temperature. Intake and exhaust of air. Hereinafter, only different parts from the above-described first embodiment will be described.

  FIG. 9 is a block diagram illustrating the internal configuration of the information processing apparatus 10 according to the present embodiment, and corresponds to FIG. 1 in the first embodiment described above. As shown in FIG. 9, a temperature detection unit 200 is added to the information processing apparatus 10 according to the present embodiment. The temperature detection unit 200 is configured by a thermistor, for example, and is connected to the main CPU 20.

  FIG. 10 is a flowchart illustrating the contents of the intake / exhaust signal supply processing according to the present embodiment. In the present embodiment, the intake / exhaust signal supply processing shown in FIG. 10 is realized by the main CPU 20 reading and executing the intake / exhaust signal supply program stored in the hard disk drive 22. . The intake / exhaust signal supply process is a process that is regularly executed.

  As shown in FIG. 10, first, the main CPU 20 acquires temperature information from the temperature detection unit 200 and detects the temperature (step S50). Subsequently, the main CPU 20 determines whether or not the detected temperature is higher than a predetermined temperature (step S52). This predetermined temperature is, for example, 50 ° C.

  When the detected temperature is not higher than the predetermined temperature (step S52: NO), the process returns to step S50 described above. On the other hand, when the detected temperature is higher than the predetermined temperature (step S52: YES), the main CPU 20 turns on the oscillator 104 of the speaker drive signal output unit 36 (step S54).

  Next, the main CPU 20 acquires temperature information from the temperature detection unit 200 and detects the temperature (step S56). Subsequently, the main CPU 20 determines whether or not the detected temperature is lower than a predetermined temperature (step S58). This predetermined temperature is 45 ° C., for example. The reason why the temperature in step S52 is different from the temperature in step S58 is that hysteresis is set so that intake / exhaust for heat dissipation by the speaker device 42 is continuously performed.

  If the detected temperature is not lower than the predetermined temperature (step S58: NO), the process returns to step S56 described above. On the other hand, when the detected temperature is lower than the predetermined temperature (step S58: YES), the main CPU 20 turns off the oscillator 104 of the speaker drive signal output unit 36 (step S60). And it returns to the process of step S50 mentioned above.

  FIG. 11 is a flowchart illustrating still another modified example of the intake / exhaust signal supply processing. As shown in FIG. 11, first, the main CPU 20 acquires temperature information from the temperature detection unit 200 and detects the temperature (step S100). Subsequently, the main CPU 20 determines whether or not the detected temperature is higher than a predetermined temperature (step S102). This predetermined temperature is, for example, 50 ° C.

  When the detected temperature is not higher than the predetermined temperature (step S102: NO), the process returns to step S100 described above. On the other hand, when the detected temperature is higher than the predetermined temperature (step S102: YES), the main CPU 20 performs the processes of steps S10 to S20 of FIG. 8 in the first embodiment described above. That is, if the audio data is not being reproduced, the oscillator 104 is turned on. If the voice data is being reproduced, the voice data is analyzed. If the voice data can be sucked / exhausted, the voice data is directly reproduced from the speaker device 42. To be reproduced from the speaker device 42.

  And after step S16 or after step S20, main CPU20 acquires temperature information from the temperature detection part 200, and detects temperature (step S110). Subsequently, the main CPU 20 determines whether or not the detected temperature is lower than a predetermined temperature (step S112). This predetermined temperature is 45 ° C., for example. The reason why the temperature in step S102 is different from the temperature in step S112 is that hysteresis is set so that intake and exhaust for heat radiation by the speaker device 42 is continuously performed.

  When the detected temperature is not lower than the predetermined temperature (step S112: NO), the process returns to step S10 described above. On the other hand, when the detected temperature is lower than the predetermined temperature (step S112: YES), the process returns to step S100 described above.

  As described above, according to the information processing apparatus 10 according to the present embodiment, only when the temperature inside the information processing apparatus 10 is detected by the temperature detection unit 200 and the internal temperature becomes higher than a predetermined temperature, Forced intake / exhaust from the speaker device 42 is performed. Therefore, when the internal temperature has not risen, the driving of the speaker device 42 can be stopped, and the power consumption can be further reduced.

[Third Embodiment]
The third embodiment is such that a forced intake / exhaust speaker device is provided separately from the speaker device for sound reproduction in the first embodiment or the second embodiment described above. Hereinafter, only parts different from the first embodiment or the second embodiment described above will be described.

  FIG. 12 is a block diagram illustrating an example of the internal configuration of the information processing apparatus 10 according to the present embodiment. As shown in FIG. 12, in the information processing apparatus 10 according to the present embodiment, a speaker device 300 for sound reproduction is provided in addition to the speaker device 42 for forced intake / exhaust. A dedicated speaker drive signal output unit 310 is connected to the speaker device 42 for forced intake / exhaust, and a dedicated speaker drive signal output unit 320 is connected to the speaker device 300 for sound reproduction. That is, the speaker drive signal output unit 320 is configured by a normal output circuit for outputting audio data. Note that the speaker device 300 and the speaker drive signal output unit 320 can be omitted when the information processing apparatus 10 is not provided with a function for reproducing audio data.

  FIG. 13 is a block diagram illustrating an example of the internal configuration of the speaker drive signal output unit 310 according to the present embodiment. As shown in FIG. 13, the speaker drive signal output unit 310 is provided with an oscillator 104 and an amplifier 106 similar to those in the first embodiment or the second embodiment described above.

  That is, the oscillator 104 generates an analog signal having a predetermined frequency (for example, 60 Hz) outside the audible range and outputs the analog signal to the amplifier 106. The amplifier 106 amplifies this analog signal and outputs it to the speaker device 42. Since the analog signal for reproducing the audio data is not supplied to the speaker device 42, the speaker device 42 functions as a speaker dedicated to forced intake / exhaust for heat dissipation. The amplification factor of the amplifier 106 may be determined in advance, or may be arbitrarily set by the user.

  The drive control of the speaker device 42 in the present embodiment can employ the various methods described above. The simplest technique is a technique in which an analog signal for intake and exhaust is steadily applied to the speaker device 42 from when the information processing apparatus 10 is turned on until the power is turned off. In this case, since the temperature detection inside the information processing apparatus 10 is unnecessary, the temperature detection unit 200 can be omitted.

  As described with reference to FIG. 10, the intake / exhaust analog signal may be applied to the speaker device 42 only when the internal temperature of the information processing apparatus 10 becomes high.

  As described above, according to the information processing apparatus 10 according to the present embodiment, since the speaker device 42 is a dedicated speaker device for performing forced intake / exhaust for heat dissipation, the structure of the speaker device 42 is compulsory intake / exhaust. It can be made a structure suitable for. In addition, since the audio reproduction speaker device 300 can concentrate on reproduction of audio data, the sound quality can be improved.

[Fourth Embodiment]
In the fourth embodiment, the first to third embodiments described above are modified and the main CPU 20, the USB controller 24, and the hard disk drive 36 with high heat generation are stored in the enclosure 62 of the speaker device 42. Is.

  FIG. 14 is a block diagram illustrating an example of an internal layout of the information processing apparatus 10 according to the present embodiment. As shown in FIG. 14, in this embodiment, the main CPU 20, the USB controller 24, and the hard disk drive 36 that are considered to have high heat generation are stored in the enclosure 62 of the speaker device 42. For this reason, the speaker main body 64 is vibrated so that air is sucked from the first valve 66 and discharged from the second valve 68 so that the air inside the enclosure 62 can be forcibly sucked and exhausted. Thus, the heat of the main CPU 20, the USB controller 24, and the hard disk drive 36 can be released.

  In general, since it is difficult to seal the housing 60 of the small information processing apparatus 10, it is more efficient to store components with high exothermicity inside the enclosure 62 of the speaker device 42 and radiate heat intensively. It is thought that. In the present embodiment, the main CPU 20 and the USB controller 24 are illustrated as components having high heat generation properties, and these are arranged on the same substrate 70. Further, since the hard disk drive 36 can also be a heat source, it is stored in the enclosure 62.

  The specific drive control of the speaker device 42 in the present embodiment may be any method described in the first to third embodiments.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible. For example, in the above-described embodiment, the main CPU 20 and the USB controller 24 are illustrated as heat sources, and the hard disk drive 36 is illustrated as a heat source. However, it goes without saying that other components can be heat sources.

  In the above embodiment, the information processing apparatus 10 has been described as an example of the exothermic device. However, the present invention is also applied to other types of exothermic devices having exothermic components. Can do.

  About each process demonstrated by the above-mentioned embodiment, the program for realizing each process is recorded on recording media, such as a flexible disk, CD-ROM (Compact Disc-Read Only Memory), ROM, and a memory card, It can be distributed in the form of a recording medium. In this case, the above-described embodiment can be realized by causing the information processing apparatus 10 to read and execute the program recorded on the recording medium.

  Further, the information processing apparatus 10 may include other programs such as an operating system and another application program. In this case, in order to utilize another program included in the information processing apparatus 10, a program including an instruction for calling a program that realizes processing equivalent to the above-described embodiment from among the programs included in the information processing apparatus 10 May be recorded on a recording medium.

  Furthermore, such a program can be distributed not as a recording medium but as a carrier wave through a network. The program transmitted in the form of a carrier wave on the network is taken into the information processing apparatus 10, and the above-described embodiment can be realized by executing this program.

  Also, when a program is recorded on a recording medium or transmitted as a carrier wave on a network, the program may be encrypted or compressed. In this case, the information processing apparatus 10 that has read the program from the recording medium or the carrier wave needs to execute the program after decoding or decompressing the program.

FIG. 2 is a block diagram for explaining an example of the internal configuration of the information processing apparatus according to the first embodiment. The figure explaining an example of the internal layout of the information processing apparatus which concerns on 1st Embodiment thru | or 3rd Embodiment. The figure explaining the modification of the internal layout of information processing apparatus. The block diagram of the speaker apparatus for demonstrating the principle of the intake / exhaust using a speaker apparatus. The block diagram explaining an example of a structure of the speaker drive signal output part of FIG. The block diagram explaining the modification of the speaker drive signal output part of FIG. The block diagram explaining another modification of the speaker drive signal output part of FIG. The figure which shows the flowchart explaining the content of the signal supply process for intake / exhaust in 1st Embodiment. The block diagram explaining an example of the internal structure of the information processing apparatus which concerns on 2nd Embodiment. The figure which shows the flowchart explaining the content of the signal supply process for intake / exhaust in 2nd Embodiment. The figure which shows the flowchart explaining the content of the signal supply process for another intake / exhaust in 2nd Embodiment. The block diagram explaining an example of the internal structure of the information processing apparatus which concerns on 3rd Embodiment. The block diagram explaining an example of a structure of the speaker drive signal output part of FIG. The figure explaining an example of the internal layout of the information processing apparatus which concerns on 4th Embodiment.

Explanation of symbols

10 Information processing apparatus 20 Main CPU
22 Hard disk drive 24 USB controller 26 Flash memory 28 Connector 30 Sub CPU
32 SDRAM
34 Display Unit 36 Speaker Drive Signal Output Unit 40 Keyboard 42 Speaker Device 50 Battery 52 Voltage Conversion Supply Circuit

Claims (15)

A speaker main body provided in the enclosure; a first valve for intake provided in the enclosure; and a second valve for exhaust provided in the enclosure, wherein the speaker main body vibrates. A forced intake / exhaust operation in which air is taken in from the first valve and exhausted from the second valve;
Exothermic components that emit heat; and
A heat sink, wherein one end side is close to the exothermic component and the other end side is close to the speaker device;
An exothermic device comprising:   The exothermic device according to claim 1, wherein the other end side of the heat sink is located in the vicinity of the first valve.   The exothermic device according to claim 1, wherein the other end side of the heat sink is in contact with the enclosure of the speaker device.   The exothermic device according to claim 1, wherein the other end side of the heat sink is located at a predetermined distance from the enclosure of the speaker device.   5. The speaker drive signal output unit that outputs an intake / exhaust signal for causing the speaker device to perform the forced intake / exhaust operation to the speaker device. The exothermic device described.   The exothermic device according to claim 5, wherein the speaker drive signal output unit steadily outputs the intake / exhaust signal to the speaker device.   6. The heat generating device according to claim 5, wherein the speaker driving signal output unit combines an output signal for reproducing audio data and the intake / exhaust signal and outputs the combined signal to the speaker device. A control unit for controlling whether to output the intake / exhaust signal from the speaker drive signal output unit to the speaker device;
The control unit determines whether audio data is being reproduced from the speaker device, and if the audio data is not being reproduced, causes the speaker drive signal output unit to output the intake / exhaust signal. The exothermic device according to claim 5.   When audio data is being reproduced from the speaker device, the control unit analyzes the audio data and determines whether the forced intake / exhaust operation is performed in the speaker device by reproducing the audio data. If it is determined that the forced intake / exhaust operation is not performed, the speaker drive signal output unit outputs the intake / exhaust signal, and if it is determined that the forced intake / exhaust operation is performed, the speaker The exothermic device according to claim 8, wherein the drive signal output unit does not output the intake / exhaust signal.   When audio data is being reproduced from the speaker device, the control unit analyzes the audio data and determines whether the forced intake / exhaust operation is performed in the speaker device by reproducing the audio data. When it is determined that the forced intake / exhaust operation is not performed, the audio data is changed so that the forced intake / exhaust operation is performed by the speaker device, and the intake / exhaust operation is performed on the speaker drive signal output unit. The exothermic device according to claim 8, wherein an exhaust signal is not output. A temperature detector for detecting the temperature inside the exothermic device;
A control unit for controlling whether to output the intake / exhaust signal from the speaker drive signal output unit to the speaker device;
The control unit causes the speaker drive signal output unit to output the intake / exhaust signal only when the temperature detected by the temperature detection unit is higher than a predetermined temperature. Exothermic device. A temperature detector for detecting the temperature inside the exothermic device;
A control unit for controlling whether to output the intake / exhaust signal from the speaker drive signal output unit to the speaker device;
When the temperature detected by the temperature detection unit is higher than a predetermined temperature, the control unit determines whether the audio data is being reproduced from the speaker device, and if the audio data is not being reproduced, The speaker drive signal output unit outputs the intake / exhaust signal,
When audio data is being reproduced from the speaker device, the control unit analyzes the audio data and determines whether the forced intake / exhaust operation is performed in the speaker device by reproducing the audio data. If it is determined that the forced intake / exhaust operation is not performed, the speaker drive signal output unit outputs the intake / exhaust signal, and if it is determined that the forced intake / exhaust operation is performed, the speaker The exothermic device according to claim 5, wherein the drive signal output unit does not output the intake / exhaust signal.   The exothermic device according to any one of claims 5 to 12, wherein the speaker drive signal output unit outputs the intake / exhaust signal having a frequency outside a human audible range.   The exothermic device according to claim 1, wherein the speaker device is provided exclusively for the forced intake / exhaust operation without reproducing audio data. A speaker main body provided in the enclosure; a first valve for intake provided in the enclosure; and a second valve for exhaust provided in the enclosure, wherein the speaker main body vibrates. A forced intake / exhaust operation in which air is taken in from the first valve and exhausted from the second valve;
An exothermic component provided within the enclosure for generating heat;
A housing for storing the speaker device and the heat-generating component;
An exothermic device comprising:

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