Electronic device

Abstract

To provide an electronic apparatus capable of reducing the influence of sound outside the apparatus as compared with a case where a sound sensor is not covered with a cover part inside an exterior cover.SOLUTION: The frame 202 supports a sound source that generates an operation sound by disposing the sound source inside. The frame 202 is formed with an opening 202a communicating with the space 201 in which the sound source is disposed. A sound sensor 200 for collecting sound from a sound source through the opening 202a is disposed outside the frame 202. An inner cover 204 is provided so as to cover the sound sensor 200 and the 202a of the opening at least when viewed from the outside of the device. Further, an exterior cover 206 is provided so as to cover the outside of the inner cover 204.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to electronic devices. [Background technology]

[0002] Patent Document 1 discloses a paper transport device that includes a transport abnormality identification means that arranges multiple acoustoelectric transducers at predetermined intervals on a paper transport path, and that is equipped with a normal sound storage means that stores normal sounds generated when paper transport is normal for each acoustoelectric transducer position, and a comparative sound recording means that records comparative sounds that are generated when paper transport is abnormal for each acoustoelectric transducer position, and that identifies the location of a transport abnormality within the transport path based on the difference when the normal sounds stored in the normal sound storage means are compared with the comparative sounds recorded in the comparative sound recording means. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-249046 Summary of the Invention [Problem to be solved by the invention]

[0004] In some cases, multiple sound sensors are installed inside an image forming device to detect the sound of sound sources such as the drive system and analyze the cause of abnormalities. In this case, if the sound sensors are installed near the sound source, the operating noise will be too loud and it will be difficult to detect the abnormal noise. Therefore, it is necessary to install the sound sensors at a position that is a reasonable distance from the sound source.

[0005] However, if the sound sensor is installed near the exterior cover, there is a problem in that it detects sounds from outside the device.

[0006] An object of the present disclosure is to provide an electronic device that can reduce the influence of sounds outside the device compared to when the sound sensor is not covered by a covering portion on the inside of the exterior cover. [Means for solving the problem]

[0007] An electronic device of a first aspect of the present disclosure includes a sound source that generates operating sounds, a frame that supports and positions the sound source inside and has an opening that leads to the space in which the sound source is positioned, a sound sensor that is positioned outside the frame and collects sound from the sound source through the opening, a cover that is positioned to cover the sound sensor and the opening at least when viewed from outside the device, and an exterior cover that covers the outside of the cover.

[0008] An electronic device according to a second aspect of the present disclosure is the electronic device according to the first aspect, wherein a space between the cover and the exterior cover is used as an air flow path.

[0009] An electronic device according to a third aspect of the present disclosure is the electronic device according to the second aspect, further comprising a fan that exhausts air in the air flow path to the outside of the device.

[0010] An electronic device according to a fourth aspect of the present disclosure is the electronic device according to the first aspect, wherein the cover has a shape that reflects sound collected through the opening to the sound sensor.

[0011] An electronic device according to a fifth aspect of the present disclosure is the electronic device according to the fourth aspect, wherein the cover portion has a shape of a part of an ellipsoid.

[0012] An electronic device according to a sixth aspect of the present disclosure is the electronic device according to the fifth aspect, wherein the sound sensor and the opening are respectively arranged at two focal positions of the shape of a part of the ellipsoid.

[0013] An electronic device of a seventh aspect of the present disclosure is the electronic device of the fourth aspect, wherein the cover portion has a shape of a part of a sphere, and the sound sensor collects sound from the sound source through the plurality of openings.

[0014] An electronic device according to an eighth aspect of the present disclosure is the electronic device according to the fourth aspect, wherein the cover portion has a shape of a part of a polyhedron.

[0015] An electronic device of a ninth aspect of the present disclosure is the electronic device of the seventh or eighth aspect, wherein the sound sensor is arranged at a position where sound from the opening is reflected by the cover and collected.

[0016] An electronic device according to a tenth aspect of the present disclosure is the electronic device according to the fourth aspect, wherein the sound sensor has a sound collection section that collects sound, and the sound collection section is disposed at a position different from the opening. [Effects of the Invention]

[0017] According to the electronic device of the first aspect of the present disclosure, it is possible to reduce the influence of sounds outside the device compared to when the sound sensor is not covered by the inner covering portion of the exterior cover.

[0018] According to the electronic device of the second aspect of the present disclosure, the influence of sounds outside the device can be reduced compared to when no air flow path is formed between the sound sensor and the exterior cover.

[0019] According to the electronic device of the third aspect of the present disclosure, it is possible to reduce the influence of sound outside the device while cooling the inside of the device.

[0020] According to the electronic device of the fourth aspect of the present disclosure, it is possible to more easily collect sound from the sound source compared to a case where the shape of the cover is not taken into consideration.

[0021] According to the electronic device of the fifth aspect of the present disclosure, it is possible to more easily collect sound from the sound source compared to a case where the shape of the cover is not taken into consideration.

[0022] According to the electronic device of the sixth aspect of the present disclosure, it is possible to more easily collect sound from a sound source compared to a case where the position of the sound sensor is not taken into consideration.

[0023] According to the electronic device of the seventh aspect of the present disclosure, it is possible to more easily collect sound from the sound source compared to a case where the shape of the cover is not taken into consideration.

[0024] According to the electronic device of the eighth aspect of the present disclosure, it is possible to more easily collect sound from the sound source compared to a case where the shape of the cover is not taken into consideration.

[0025] According to the electronic device of the ninth aspect of the present disclosure, it is possible to more easily collect sound from a sound source compared to a case where the position of the sound sensor is not taken into consideration.

[0026] According to the electronic device of the tenth aspect of the present disclosure, even if the sound collection section is placed at a position different from the opening, it is possible to make it easier to collect sound from the sound source. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a schematic diagram illustrating a configuration of an image forming apparatus according to an embodiment of the present disclosure. [Figure 2] FIG. 1 is a schematic diagram showing the periphery of a sound sensor according to an embodiment of the present disclosure. [Figure 3] FIG. 10 is a diagram illustrating a modified example of the periphery of a sound sensor according to an embodiment of the present disclosure. [Figure 4] FIG. 10 is a diagram illustrating a modified example of the periphery of a sound sensor according to an embodiment of the present disclosure. [Figure 5] FIG. 1 is a diagram illustrating an example of installation of a sound sensor according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0028] Next, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0029] Fig. 1 is a diagram showing the configuration of an image forming apparatus 10 according to an embodiment of the present disclosure. Fig. 1 is a diagram showing the image forming apparatus 10 as viewed from the front side of the image forming apparatus 10. Also, the external cover 206 and the like are omitted to show the internal structure of the image forming apparatus 10.

[0030] 1, image forming apparatus 10 has an apparatus main body 12, which contains image forming units 14K, 14Y, 14M, and 14C, an intermediate transfer belt 16, a paper tray 17, a paper transport path 18, a fixing device 19, and a control device 20. Image forming apparatus 10 is a multifunction device that has a printer function for printing image data received from a personal computer (not shown) or the like, as well as a full-color copier function and a facsimile function.

[0031] In this embodiment, four image forming units 14K, 14Y, 14M, and 14C corresponding to the colors black (K), yellow (Y), magenta (M), and cyan (C) are arranged horizontally at regular intervals along the intermediate transfer belt 16. These four image forming units 14K, 14Y, 14M, and 14C sequentially form toner images as developer images of the respective colors based on image data input from the control device 20, and transfer (primary transfer) these multiple toner images to the intermediate transfer belt 16 at a timing when they are superimposed on one another. Note that the order of the colors of the image forming units 14K, 14Y, 14M, and 14C is not limited to black, yellow, magenta, and cyan, and can be any order, such as yellow, magenta, cyan, and black.

[0032] The paper transport path 18 is disposed below the intermediate transfer belt 16. Recording paper 26 as a recording medium supplied from a paper tray 17 is transported on this paper transport path 18, and the toner images of each color transferred in multiple layers onto the intermediate transfer belt 16 are transferred together (called secondary transfer), and the transferred toner images are fixed by a fixing device 19 and discharged to the outside.

[0033] Next, each component of the image forming apparatus 10 will be described in more detail.

[0034] Image forming units 14K, 14Y, 14M, and 14C are arranged in parallel at regular intervals in the horizontal direction and are configured similarly except for the colors of the images they form. Therefore, the following description focuses on image forming unit 14K. The configuration of each image forming unit 14 is distinguished by adding the letter K, Y, M, or C. For this reason, image forming units 14K, 14Y, 14M, and 14C may be collectively referred to as "image forming units 14."

[0035] The image forming unit 14K is composed of a photosensitive drum 152K that holds a toner image, an exposure device 140K that exposes the photosensitive drum 152K by scanning it with a laser beam in accordance with image data input from the control device 20, a charging device 154K that uniformly charges the surface of the photosensitive drum 152K, a developing device 156K that develops the electrostatic latent image formed on the photosensitive drum 152K, and a cleaning device 158K. That is, the electrostatic latent image formed on the photosensitive drum 152K is developed with black (K) toner by the developing device 156K and transferred to the intermediate transfer belt 16. After the toner image transfer process, residual toner, paper dust, and the like adhering to the photosensitive drum 152K are removed by the cleaning device 158K.

[0036] Similarly, the other image forming units 14Y, 14M, and 14C each have photosensitive drums 152Y, 152M, and 152C, exposure devices 140Y, 140M, and 140C, charging devices 154Y, 154M, and 154C, developing devices 156Y, 156M, and 156C, and cleaning devices 158Y, 158M, and 158C, and form toner images of yellow (Y), magenta (M), and cyan (C) colors, and transfer the formed toner images of each color to the intermediate transfer belt 16.

[0037] The intermediate transfer belt 16 is formed in the shape of an endless belt, and is wound around a drive roll 164, idle rolls 165, 166, and 167, a backup roll 168, and an idle roll 169 with a constant tension. The drive roll 164 is driven to rotate by a drive motor (not shown), and the intermediate transfer belt 16 is driven to circulate at a predetermined speed in the direction of arrow A.

[0038] Furthermore, primary transfer rolls 162K, 162Y, 162M, and 162C serving as primary transfer devices are disposed on the intermediate transfer belt 16 at positions facing the image forming units 14K, 14Y, 14M, and 14C, respectively. The toner images of each color formed on the photosensitive drums 152K, 152Y, 152M, and 152C are transferred in multiple layers onto the intermediate transfer belt 16 by these primary transfer rolls 162K, 162Y, 162M, and 162C. Residual toner adhering to the intermediate transfer belt 16 is removed by a cleaning blade or brush of a belt cleaning device 189 provided downstream of the secondary transfer position.

[0039] The paper transport path 18 is provided with a paper feed roll 181 that takes out the recording paper 26 from the paper tray 17, a pair of rolls 182, 183, and 184 for transporting the paper, and a registration roll 185 that transports the recording paper 26 to the secondary transfer position at a predetermined timing.

[0040] Furthermore, at the secondary transfer position on the paper transport path 18, a secondary transfer roll 186 is disposed as a secondary transfer device that is in pressure contact with the backup roll 168. The toner images of each color that have been transferred in multiple layers onto the intermediate transfer belt 16 are secondarily transferred onto the recording paper 26 by the pressure contact force and electrostatic force of this secondary transfer roll 186.

[0041] Then, the recording paper 26 onto which the toner images of each color have been transferred is transported to the fixing device 19 by a transport belt 188 and is discharged onto a tray 191 by a pair of discharge rolls 190.

[0042] The fixing device 19 includes a cylindrical heating roll and a cylindrical pressure roll facing the heating roll, and applies heat and pressure to the recording paper 26 to melt and fix the toner to the recording paper 26 .

[0043] The drive systems, such as the image forming unit 14, paper feed roll 181, roll pairs 182, 183, 184, registration roll 185, secondary transfer roll 186, conveyor belt 188, fixing device 19, and discharge roll pair 190, are sources of operating noise. For this reason, a sound sensor 200 is provided around these drive systems to acquire (collect) the operating noise of these drive systems and paper, etc.

[0044] The control device 20 performs image processing such as gradation correction and resolution correction on image data input from a personal computer (not shown) or the like via a network line such as a LAN, and outputs the image data to the image forming units 14K, 14Y, 14M, and 14C. The control device 20 also detects abnormal sounds based on the operating sounds acquired from the sound sensor 200, and senses abnormalities in the device.

[0045] FIG. 2 is a vertical cross-sectional view of the periphery of the sound sensor 200 as seen from the side of the image forming apparatus 10. As shown in FIG.

[0046] Sound sources such as the image forming unit 14, paper feed roll 181, roll pairs 182, 183, and 184, registration roll 185, secondary transfer roll 186, conveyor belt 188, fixing device 19, and discharge roll pair 190 are arranged in a space 201 inside a frame 202 that constitutes the device body 12. The frame 202 is made of, for example, metal, and is configured to support the sound sources arranged inside. An opening 202a that leads to the space 201 in which the sound sources are arranged is formed in the frame 202.

[0047] An inner cover 204, which is a covering portion that covers the opening 202a from the outside of the frame 202, is provided at the opening 202a. The inner cover 204 is made of, for example, resin, and is configured to include the shape of part of a polyhedron (part of a pentahedron in FIG. 2). A sound sensor 200 is disposed in a space 207 between the frame 202 and the inner cover 204, outside the frame 202 and inside the inner cover 204. In other words, the sound sensor 200 is disposed in the space 207 that leads to the space 201 in which the sound source is disposed. The sound sensor 200 is disposed at a position where sound from the opening 202a is reflected by the inner cover 204 and collected. This makes it easier for the sound sensor 200 to collect sound from the sound source through the opening 202a.

[0048] The inner cover 204 is provided so as to cover the sound sensor 200 and the opening 202a at least when viewed from the outside of the device. In other words, the sound sensor 200 is covered at least on the outside of the device main body 12 (the front side of the image forming device 10 in FIG. 1) by the inner cover 204. In other words, the sound sensor 200 and the opening 202a do not have to be covered entirely, as long as at least the outside of the device main body 12 is covered.

[0049] An exterior cover 206 that can be opened and closed relative to the apparatus body 12 (or frame 202) is provided on the outside of the inner cover 204. The exterior cover 206 is made of, for example, resin, and is provided so as to cover the outside of the inner cover 204. The exterior cover 206 is configured to be opened by a hinge, allowing replacement of the photosensitive drum 152 and the like arranged inside the apparatus body 12. A space 203 is formed between the exterior cover 206 and the inner cover 204.

[0050] In this way, at least the outside of the device main body 12 of the sound sensor 200 is covered by the inner cover 204, and the outside of the inner cover 204 is further covered by the exterior cover 206. As a result, sound from outside the device is reduced by the exterior cover 206 and the inner cover 204, and the sound sensor 200 can easily collect sound from inside the device main body 12 while reducing the influence of sound from outside the device. As a result, it is possible to accurately detect abnormal sounds and easily detect abnormalities in the device.

[0051] 3 and 4 are diagrams showing modified examples of the periphery of the sound sensor 200.

[0052] FIG. 3(A) shows Modification 1. In this modification, a fan 208 is provided in the space 203 between the inner cover 204 and the exterior cover 206 described above. Driving the fan 208 exhausts the atmosphere in the space 203 to the outside of the device. That is, driving the fan 208 uses the space 203 as an air flow path (also called a duct), and exhausts the atmosphere in the space 203 to the outside of the device. Therefore, the space 203 acts as a soundproof wall that blocks sound from outside the device. This reduces (also called sound insulation) sound from outside the device, and the sound sensor 200 can easily collect sound from inside the device body 12 while reducing the influence of sound from outside the device. As a result, it is possible to accurately detect abnormal sounds while cooling the inside of the device with efficient layout, making it easier to detect abnormalities in the device.

[0053] FIG. 3(B) shows Modification 2. In this modification, the shape of the inner cover 304 is different from the shape of the inner cover 204 described above. The inner cover 304 has a shape that reflects sound collected through the opening 202a to the sound sensor 200. Specifically, the inner cover 304 is configured to include the shape of a portion of an ellipsoid. The sound sensor 200 and the opening 202a are configured to be disposed at two focal positions of the ellipsoid-shaped inner cover 304, respectively. As a result, sound from the opening 202a is reflected by the inner cover 304 and collected by the sound sensor 200. Therefore, external sound is reduced, and the sound sensor 200 can more easily collect internal sound within the device body 12 while reducing the influence of external sound. As a result, abnormal sounds can be detected with high accuracy, making it easier to detect abnormalities in the device.

[0054] FIG. 4(A) shows Modification 3. In this modification, the shape of the inner cover 404 is configured to include the shape of a portion of a sphere. Furthermore, a plurality of openings 202a are formed in the frame 202. The sound sensor 200 is placed at a focal point (near the center), which is a position where sounds from the plurality of openings 202a are reflected by the spherical inner cover 404 and collected. As a result, sounds from the plurality of openings 202a are reflected by the inner cover 404 and collected by the sound sensor 200. Even in this case, the same effect as in Modification 2 described above can be obtained.

[0055] Fig. 4(B) shows Modification 4. In this modification, the shape of the inner cover 504 is configured to include the shape of part of a polyhedron (part of an octahedron in Fig. 4(B)). The sound sensor 200 is placed in a position where sound from the opening 202a is reflected by the polyhedron-shaped inner cover 504 and collected. As a result, sound from the opening 202a is reflected by the inner cover 504 and collected by the sound sensor 200. Even in this case, the same effect as in Modification 2 described above can be obtained.

[0056] Next, an example of installation of the sound sensor 200 will be described with reference to Fig. 5. Fig. 5(A) is a view of the periphery of the sound sensor 200 as seen from the front side of the image forming apparatus 10. Fig. 5(B) is a view of the periphery of the sound sensor 200 as seen from the side side of the image forming apparatus 10. Note that the inner cover 204 and the outer cover 206 are omitted from Figs. 5(A) and 5(B).

[0057] As described above, the sound sensor 200 is disposed around the opening 202a on the outside of the frame 202. The sound sensor 200 has, for example, a sound collection unit 200a that collects sound, and a circuit board 200b on which the sound collection unit 200a is mounted. The inner surface of the upper part of the circuit board 200b abuts against a spherical protrusion 601 provided on the outside of the frame 202, and a screw 602 is inserted into a hole 200c formed in the lower part of the circuit board 200b, thereby fixing the circuit board 200b to the outside of the frame 202. A space 603 is formed between the frame 202 and the circuit board 200b.

[0058] The sound collection unit 200a is configured to be disposed at a different position from the opening 202a of the frame 202 when viewed from the front side of the image forming apparatus 10 (also referred to as the outside of the apparatus), but not overlapping with it. The sound collection unit 200a is also configured to be disposed at a different height from the opening 202a of the frame 202 when viewed from the side of the image forming apparatus 10. An inner cover 204 is provided to cover the opening 202a and the sound collection unit 200a at least when viewed from the front side of the image forming apparatus 10 (also referred to as the outside of the apparatus). Furthermore, an exterior cover 206 is provided to cover the outside of the inner cover 204. In this way, external noise is reduced, and the sound sensor 200 can more easily collect internal noise while reducing the influence of external noise. As a result, abnormal noise can be detected with high accuracy, making it easier to detect abnormalities in the apparatus.

[0059] [Variations] In the above embodiment, the present disclosure has been described as being applied to the image forming apparatus 10, but the present disclosure is not limited to this. The present disclosure can also be applied to electronic devices equipped with sound sensors.

[0060] In addition, in the above embodiment, the inner cover has been described as having a shape that is a part of an ellipsoid, a part of a sphere, or a part of a polyhedron, but the present disclosure is not limited to this. The inner cover may have any shape that reflects the sound collected through the opening 202a to the sound sensor 200.

[0061] Furthermore, in the above embodiment, a case has been described in which an image forming unit of four colors, YMCK, is provided, but the present disclosure is not limited to this and can be similarly applied to a case in which an image forming unit of four or more colors, or a black and white (monochrome) image forming unit is provided.

[0062] [Note] Preferred embodiments of the present disclosure will be described below.

[0063] (((1))) a sound source that generates an operating sound; a frame that supports the sound source disposed inside and has an opening that communicates with a space in which the sound source is disposed; a sound sensor provided on the outside of the frame and configured to collect sound from the sound source through the opening; a cover portion provided to cover the sound sensor and the opening portion when viewed at least from the outside of the device; an exterior cover that covers the outside of the cover portion; An electronic device comprising:

[0064] (((2))) The electronic device according to (((1))), wherein a space between the covering portion and the exterior cover is used as an air flow path.

[0065] (((3))) The electronic device according to (((2))), further comprising a fan that exhausts air in the air flow path to the outside of the device.

[0066] (((4))) The electronic device described in any one of (((1))) to (((3))), wherein the cover portion has a shape that reflects sound collected through the opening portion to the sound sensor.

[0067] (((5))) The electronic device according to (((4))), wherein the cover portion has a shape of a part of an ellipsoid.

[0068] (((6))) The electronic device according to (((5))), wherein the sound sensor and the opening are respectively arranged at two focal positions of the shape of a portion of the ellipsoid.

[0069] (((7))) the cover portion has a shape of a part of a sphere, The electronic device according to (((4))), wherein the sound sensor collects sound from the sound source through the plurality of openings.

[0070] (((8))) The electronic device according to (((4))), wherein the cover portion has a shape of a part of a polyhedron.

[0071] (((9))) The electronic device according to (((7))) or (((8))), wherein the sound sensor is arranged at a position where sound from the opening is reflected by the cover and collected.

[0072] (((10))) The sound sensor has a sound collection unit that collects sound, The electronic device according to any one of (((4))) to (((9))), wherein the sound collection unit is disposed at a position different from the opening.

[0073] The effects of the configuration described above will be described below.

[0074] According to the electronic device of (((1))), it is possible to reduce the influence of sounds outside the device compared to when the sound sensor is not covered by the inner covering portion of the exterior cover.

[0075] According to the electronic device of (((2))), the influence of sounds outside the device can be reduced compared to when no air flow path is formed between the sound sensor and the exterior cover.

[0076] According to the electronic device of (((3))), it is possible to reduce the influence of sound outside the device while cooling the inside of the device.

[0077] According to the electronic device of (((4))), it is possible to more easily collect sound from the sound source compared to a case where the shape of the cover is not taken into consideration.

[0078] According to the electronic device of (((5))), it is possible to more easily collect sound from the sound source compared to a case where the shape of the cover portion is not taken into consideration.

[0079] According to the electronic device of (((6))), it is possible to more easily collect sound from a sound source compared to a case where the position of the sound sensor is not taken into consideration.

[0080] According to the electronic device of (((7))), it is possible to more easily collect sound from the sound source compared to a case where the shape of the cover is not taken into consideration.

[0081] According to the electronic device of (((8))), it is possible to more easily collect sound from the sound source compared to a case where the shape of the cover is not taken into consideration.

[0082] According to the electronic device of (((9))), it is possible to more easily collect sound from a sound source compared to a case where the position of the sound sensor is not taken into consideration.

[0083] According to the electronic device of (((10))), even if the sound collection section is placed at a position different from the opening, it is possible to easily collect sound from the sound source. [Explanation of symbols]

[0084] 10 Image forming device 14 Image forming unit 16 Intermediate transfer belt (an example of an intermediate transfer body) 17 Paper Tray 18 Paper transport path 19 Fixing device 20 Control device 26 Recording paper (an example of a recording medium) 140 Exposure equipment 152 Photosensitive drum (an example of a photosensitive body) 154 Charging device 156 Developing device 158 Cleaning device 162 Primary transfer roll (an example of a primary transfer device) 164 Drive Roll 165, 166, 167, 169 Idol Roll 168 Backup Roll 181 Paper feed roll 182, 183, 184 Roll vs. 185 Resist Roll 186 Secondary transfer roll (an example of a secondary transfer device) 188 Conveyor Belt 189 Belt cleaning device 190 discharge roll pairs 191 Tray 200 Sound Sensor 200a Sound collection section 200b circuit board 200c hole 202 frames 202a opening 204, 304, 404, 504 Inner cover (example of cover) 206 Exterior cover 208 Fans 601 Protrusion 602 Bis

Claims

1. a sound source that generates an operating sound; a frame that supports the sound source disposed inside and has an opening that communicates with a space in which the sound source is disposed; a sound sensor provided on the outside of the frame and configured to collect sound from the sound source through the opening; a cover portion provided to cover the sound sensor and the opening portion when viewed at least from the outside of the device; an exterior cover that covers the outside of the cover portion; An electronic device comprising:

2. The electronic device according to claim 1 , wherein a space between the covering portion and the exterior cover is used as an air flow path.

3. The electronic device according to claim 2 , further comprising a fan that exhausts the air in the air flow path to the outside of the device.

4. The electronic device according to claim 1 , wherein the cover has a shape that reflects the sound collected through the opening toward the sound sensor.

5. The electronic device according to claim 4 , wherein the cover portion has a shape of a part of an ellipsoid.

6. The electronic device according to claim 5 , wherein the sound sensor and the opening are respectively disposed at two focal positions of the shape of the part of the ellipsoid.

7. the cover portion has a shape of a part of a sphere, The electronic device according to claim 4 , wherein the sound sensor collects the sound from the sound source through the plurality of openings.

8. The electronic device according to claim 4 , wherein the cover portion has a shape of a part of a polyhedron.

9. The electronic device according to claim 7 , wherein the sound sensor is disposed at a position where sound from the opening is reflected by the cover and collected.

10. The sound sensor has a sound collection unit that collects sound, The electronic device according to claim 4 , wherein the sound collecting section is disposed at a position different from the opening.

Images