JP6427368B2 - Portable electronic devices - Google Patents

Description

  The present invention relates to a portable electronic device.

  For example, Patent Document 1 discloses a portable electronic device. The portable electronic device has a sound passage hole penetrating the front surface.

  A general sound passage hole is shaped like a long hole in the lateral direction and is sufficiently large. For this reason, even if liquid accumulates in the sound passage hole, it is easy to be drained.

Japanese Patent Application Laid-Open No. 2002-171465

  In recent years, a design is required for the appearance of a portable electronic device including a sound passing hole, and the sound passing hole has various shapes. If the design is considered and the sound passage hole is smaller than the long hole shape, there is a possibility that liquid may be accumulated in the sound passage hole. Then, the liquid closes the sound transmission holes by surface tension, and the sound transmission performance is reduced. For this reason, even if the design is taken into consideration, even if the portable electronic device is used under conditions such as being exposed to wind and rain, the liquid is prevented from accumulating in the sound passage hole, It is required that the reduction in sound quality be prevented. Therefore, improvement in drainage performance is particularly required in the sound passage hole.

  Therefore, in view of the above-described circumstances, the present invention has an object to provide a portable electronic device having a sound-permeable hole portion whose drainage property is improved.

One aspect of the portable electronic device of the present invention, have a casing, a portable electronic device which forms to be used is assumed while rotating the housing part, the housing part A plurality of sound passing holes disposed in the housing and penetrating the housing between the surface of the housing and the back of the housing in the thickness direction of the housing; In the back surface of the part, the plurality of sound passing holes are arranged to respectively communicate with the plurality of sound passing holes adjacent to each of the sound passing holes in different directions. A plurality of communication grooves having different directions are provided.

  According to the present invention, it is possible to provide a portable electronic device having a sound-permeable hole whose drainage property is improved.

FIG. 1 is an external view of a portable electronic device. FIG. 2A is a view of the periphery of the sound passage hole viewed from the surface side of the housing. FIG. 2B is a view of the periphery of the sound passage hole viewed from the back side of the case. FIG. 2C is a cross-sectional view taken along line 2C-2C shown in FIG. 2A. FIG. 2D is a cross-sectional view taken along line 2D-2D shown in FIG. 2A. FIG. 2E is a partially enlarged view of 2E shown in FIG. 2D.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
[One embodiment]
[Constitution]
One embodiment will be described with reference to FIGS. 1, 2A, 2B, 2C, 2D and 2E.

[Electronic device 10]
The electronic device 10 as shown in FIG. 1 is a portable type, and uses wireless, for example, for business use, and is used in an outdoor environment or an outdoor environment. Such an electronic device 10 includes, for example, a wireless device.

  As shown in FIG. 1, the electronic device 10 outputs a voice received by radio, a housing unit 11 functioning as a box-shaped case, a transceiver unit 13 having an antenna for transmitting and receiving data including voice by radio, and And an audio output unit 15 having a speaker (not shown). In addition, the electronic device 10 includes a display unit 17 that is a monitor that displays data transmitted and received wirelessly and a state of using wireless communication such as in-range and out-of-range; And a voice input unit 21 having a microphone for inputting voice in order to transmit voice wirelessly.

[Sound passing hole 31]
As shown in FIG. 1, FIG. 2A, FIG. 2B and FIG. 2C, the housing unit 11 has, for example, a sound transmission hole 31 disposed in, for example, the front surface 11 a of the housing unit 11. The sound passing hole 31 functions as a through hole passing through the housing 11 between the surface 11 b of the housing 11 and the back surface 11 c of the housing 11 in the thickness direction of the housing 11. . The front surface 11b of the housing unit 11 functions as an outer wall, and the back surface 11c of the housing unit 11 functions as an inner wall. The sound passage hole portion 31 is disposed to emit the sound output from a speaker (not shown) disposed inside the casing portion 11 to the outside. For this reason, the sound passage holes 31 are disposed around the sound output unit 15.

  As shown in FIG. 2A, a plurality of sound passage holes 31 are provided. The shape of the sound passage hole 31 is, for example, square, but is not particularly limited.

  As shown in FIG. 2A, a plurality of sound passage holes 31 are disposed on the same straight line in the height direction of the electronic device 10. In this case, the sound passage holes 31 are disposed, for example, at equal intervals. Further, a plurality of sound passing holes 31 are arranged on the same straight line in the width direction of the electronic device 10. In this case, the sound passage holes 31 are disposed, for example, at equal intervals. Thus, the sound passage holes 31 are disposed, for example, in a lattice shape. The disposition position of the sound passage hole 31 is not particularly limited.

[Vertical communication groove 33, horizontal communication groove 35 and oblique communication groove 37]
As shown in FIG. 2B, FIG. 2C and FIG. 2D, the housing unit 11 includes the vertical communication groove 33 communicating with the sound passing holes 31 adjacent to each other in the height direction of the electronic device 10; It further has a lateral communication groove 35 communicating with the sound passing holes 31 adjacent to each other in the width direction of the. Further, the housing unit 11 further includes oblique communication groove portions 37 communicating with the sound passage holes 31 adjacent to each other in the oblique direction with respect to the height direction of the electronic device 10. In other words, the vertical communication groove portion 33 communicates the sound passage hole portion 31 with the sound passage hole portion 31 adjacent to the sound passage hole portion 31 in the height direction of the electronic device 10. Further, the lateral communication groove 35 communicates the sound passage 31 with the sound passage 31 adjacent to the sound passage 31 in the width direction of the electronic device 10. The oblique communication groove portion 37 communicates the sound passage hole portion 31 with the sound passage hole portion 31 adjacent to the sound passage hole portion 31 in the oblique direction. The vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are disposed in the lower part from the sound transmission hole 31 disposed in the upper part in the height direction of the electronic device 10. Function as a flow path through which liquid flows.

  As shown in FIGS. 2B, 2C and 2D, the vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are disposed on the back surface 11c of the front surface 11a of the housing 11. That is, the vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are not exposed to the outside, are disposed inside the housing 11, and are hidden from the outside. The vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are recessed from the back surface 11c of the housing 11 toward the surface 11b of the housing 11 in the thickness direction of the housing 11. The vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are thinner than the sound transmission hole 31.

  The vertical communication groove 33 is disposed, for example, linearly along the height direction of the electronic device 10. The lateral communication groove portion 35 is disposed, for example, linearly along the width direction of the electronic device 10. The oblique communication groove portion 37 is disposed, for example, linearly along the oblique direction of the electronic device 10. The vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are disposed, for example, to pass through the central portion of the sound transmission hole 31.

  As shown in FIG. 2B, the vertical communication groove 33a may communicate with the horizontal communication grooves 35 adjacent to each other in the height direction of the electronic device 10. As shown in FIG. 2B, the horizontal communication grooves 35a may communicate with the vertical communication grooves 33 adjacent to each other in the width direction of the electronic device 10. As shown in FIG. 2B, the horizontal communication groove 35a may intersect the vertical communication groove 33a. As shown in FIG. 2B, the diagonal communication groove 37a may be in communication with the sound transmission hole 31 and the horizontal communication groove 35. As shown in FIG. 2B, the diagonal communication groove 37b may communicate with the sound transmission hole 31 and the vertical communication groove 33. As shown in FIG. 2B, the oblique communication groove 37c may communicate with the vertical communication groove 33 and the horizontal communication groove 35. As shown to FIG. 2B, diagonal communication groove parts 37 comrades may mutually cross | intersect. Although not shown, the oblique communication grooves 37a, 37b, 37c may intersect the vertical communication groove 33a and the horizontal communication groove 35a. The arrangement positions of the vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are not particularly limited.

  The vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 may have the same width or may have different widths. The shapes of the vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are not particularly limited.

  The width of the vertical communication groove 33 may be uniform in the traveling direction of the liquid, or may be gradually wider in the traveling direction of the liquid. The depth of the vertical communication groove 33 may be uniform in the traveling direction of the liquid, or may be gradually deeper in the traveling direction of the liquid. The contents described above are the same for the lateral communication groove 35 and the oblique communication groove 37.

[Peripheral groove 39]
As shown in FIGS. 2B and 2C, the housing unit 11 has a peripheral groove 39 disposed around the sound passage 31 disposed at the lowermost position in the height direction of the electronic device 10. Have. The peripheral groove portion 39 is disposed on the back surface 11 c of the front surface 11 a of the housing unit 11. That is, the peripheral groove portion 39 is not exposed to the outside, is disposed inside the housing portion 11, and is hidden from the outside. The peripheral groove portion 39 is recessed from the back surface 11 c of the housing portion 11 toward the surface 11 b of the housing portion 11 in the thickness direction of the housing portion 11. The peripheral groove portion 39 is continuous with the sound transmission hole portion 31, the vertical communication groove portion 33, the horizontal communication groove portion 35 and the oblique communication groove portion 37. The peripheral groove 39 may be continuous to at least the sound passage hole 31 and the vertical communication groove 33.

[Vent hole 41]
As shown in FIG. 2B, FIG. 2D and FIG. 2E, the casing 11 has a vent 41 disposed on the front surface 11a of the casing 11, for example. The vent hole portion 41 is disposed, for example, at a position higher than the sound passing hole portion 31 disposed at the top in the height direction of the electronic device 10. The vent hole portion 41 functions as a through hole portion which penetrates the housing portion 11 between the front surface 11 b and the back surface 11 c in the thickness direction of the housing portion 11. The vent hole portion 41 is disposed to allow the outside air to communicate between the inside of the housing portion 11 and the outside of the housing portion 11 even when all the sound passing holes 31 are closed. ing.

  As shown in FIG. 2B, a plurality of vent holes 41 are provided. The shape of the sound passage hole 31 is, for example, a circular shape, but is not particularly limited.

  As shown in FIG. 2B, a plurality of vent holes 41 are disposed, for example, on the same straight line in the width direction of the electronic device 10. In this case, the vent holes 41 are disposed, for example, at equal intervals. The vent holes 41 are smaller than the sound passing holes 31.

[Cover groove 45]
As shown in FIG. 1, FIG. 2A, FIG. 2C, FIG. 2D and FIG. 2E, the casing 11 further has a cover groove 45 in which a cover member 43 for covering the vent hole 41 is disposed. . The cover groove 45 is disposed on the front surface 11 a of the housing 11. The cover groove 45 is recessed from the front surface 11 b of the housing 11 to the back surface 11 c of the housing 11 in the thickness direction of the housing 11. The cover groove 45 is larger than the vent hole 41. On the surface 11 b side, the cover groove 45 is continuous with the vent 41 in the width direction of the electronic device 10. That is, one cover groove 45 is provided for the three vents 41. The cover groove 45 is continuous with the vent hole 41 in the thickness direction of the housing 11. The cover groove 45 is, for example, linearly disposed.

  The cover member 43 covers the vent hole 41 so as not to seal the vent hole 41 but to cover the vent hole 41. In other words, the cover member 43 only needs to prevent the vent hole portion 41 from being directly viewed. For this reason, in the cover member 43, the cover groove 45, and the vent hole 41, a flow path (see the arrow shown in FIG. 3E) through which the outside air flows is formed. Therefore, the cover member 43 is smaller than the cover groove 45 so that the flow path is formed. The cover member 43 is attached to the cover groove 45 by, for example, an adhesive 43 a such as double-sided tape. The cover member 43 is separate from the housing unit 11. The thickness of the cover member 43 and the thickness of the adhesive 43 a are adjusted as desired such that the surface 11 b of the cover member 43 is flush with the surface 11 b of the housing 11. The adhesive 43 a is disposed offset with respect to the vent hole portion 41.

[Effect]
For example, when the electronic device 10 is exposed to wind and rain, liquid accumulates in the sound passage holes 31. The accumulated liquid flows through the vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37, and then flows to another sound transmission hole 31 adjacent to the sound transmission hole 31. This operation is repeated, and the liquid flows to the peripheral groove 39, flows from the peripheral groove 39 to the surface 11b from the back surface 11c of the casing 11 through the sound transmission hole 31 continuous with the peripheral groove 39, and drains to the outside Be done.

  In the present embodiment, since the vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are disposed, the liquid is prevented from blocking the sound transmission hole 31 by surface tension. In other words, the surface tension is eliminated by the vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37. Therefore, regardless of the conditions under which the electronic device 10 is used, it is possible to prevent the liquid from collecting in the sound passage hole portion 31 and to prevent the decrease in the sound passage property. Then, the drainage performance is improved in the sound passage holes 31.

  Further, even if the electronic device 10 is flooded or submerged, if the electronic device 10 is taken out, or if the electronic device 10 is discharged, the vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are disposed. Therefore, the liquid is prevented from accumulating in the sound passage hole portion 31, the decrease in the sound passage property is prevented, and the drainage is carried out. In particular, special operations such as shaking the electronic device 10 for drainage are unnecessary, and the trouble for drainage is eliminated.

  Along with the above, a drop in sound pressure is prevented, the sound pressure is maintained, and the electronic device 10 is used continuously.

  The vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are disposed only on the back surface 11c and are hidden from the outside. Therefore, in the present embodiment, the design of the appearance of the electronic device 10 including the sound transmission hole 31 is prevented from being impaired by the vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37.

  Further, the liquid flows downward without waste by the vertical communication groove 33. Further, when the electronic device 10 is rotated 90 degrees, the liquid flows downward without waste by the lateral communication groove portion 35. Further, the downward flow of the liquid is promoted by the oblique communication groove 37.

  The peripheral groove portion 39 is disposed around the sound passage hole portion 31 disposed at the lowermost position in the height direction of the electronic device 10. Therefore, the liquid is collectively drained from the peripheral groove portion 39 to the outside through the sound transmission hole 31. The liquid is also facilitated to drain by the peripheral groove 39.

  Even in the state in which all the sound passing holes 31 are closed, the vent hole 41 is disposed, so external air is communicated between the inside of the housing 11 and the outside of the housing 11 It is possible.

[effect]
As described above, in the present embodiment, it is possible to prevent the liquid from blocking the sound transmission hole 31 by surface tension. Therefore, even if the electronic device 10 is used under any circumstances, it is possible to prevent the liquid from collecting in the sound passage hole portion 31 and to prevent the decrease in the sound passage property. And drainage property can be improved in the sound passage hole 31.

  In addition, it is possible to eliminate the need for special operations such as shaking the electronic device 10 for drainage, and it is possible to eliminate the time and effort for drainage.

  Along with the above, the sound pressure can be prevented from being reduced, the sound pressure can be maintained, and the electronic device 10 can be used continuously.

  The vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37 are disposed only on the back surface 11c and are hidden from the outside. Therefore, in the present embodiment, the design for the appearance of the electronic device 10 including the sound transmission hole 31 can be prevented from being impaired by the vertical communication groove 33, the horizontal communication groove 35, and the oblique communication groove 37.

  Further, in the present embodiment, the liquid can be made to flow downward without waste by the vertical communication groove 33. Further, when the electronic device 10 is rotated 90 degrees, the liquid can be made to flow downward without waste by the lateral communication groove portion 35. Further, the oblique communication groove 37 can promote the flow of the liquid downward.

  Further, in the present embodiment, the liquid can be collectively drained from the peripheral groove portion 39 to the outside through the sound transmission hole portion 31, and drainage can be promoted by the peripheral groove portion 39.

  Further, in the present embodiment, the sound passing hole 31 itself can function as a waterproof type. Therefore, there is no need to cover the back surface 11c of the housing 11 including the sound passage 31 with a waterproof sheet (not shown), so that a large internal space of the housing 11 can be secured, or the housing 11 can be miniaturized.

  Further, even in the state where all the sound passing holes 31 are closed, external air can be communicated between the inside of the casing 11 and the outside of the casing 11 by the vent holes 41.

  In the present embodiment, since the vent holes 41 are concealed by the cover member 43, the design for the appearance of the electronic device 10 including the sound passing holes 31 can be prevented from being damaged. Further, even if the cover member 43 is disposed, a flow passage portion through which the outside air flows is formed in the cover member 43, the cover groove portion 45, and the vent hole portion 41. Therefore, the outside air can be communicated between the inside of the housing 11 and the outside of the housing 11.

  In addition, it is also conceivable that the sound passing hole portion 31 is not a square shape but a rectangular shape long in the width direction of the electronic device 10. In this case, if at least the vertical communication groove 33 is disposed, the above-described effect can be achieved.

  Further, in the present embodiment, at least one of the peripheral groove portion 39 and the vent hole portion 41 may be disposed.

  The present invention is not limited directly to the above-described embodiment. In practice, the structural elements can be modified and embodied without departing from the spirit of the invention. In addition, various inventions can be formed by appropriate combinations of a plurality of components disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, components in different embodiments may be combined as appropriate.

  DESCRIPTION OF SYMBOLS 10 electronic device 11 housing part 11a front surface 11b front surface 11c back surface 31 sound transmission hole 33 longitudinal communication groove 35 lateral communication groove 37 oblique communication groove 39 Peripheral groove portion, 41: vent hole portion, 43: cover member, 43a: adhesive, 45: cover groove portion.

Claims (3)

Have a casing, a portable electronic device which forms to be used is assumed while rotating the casing,
A plurality of sound passage holes disposed in the housing and penetrating the housing between the surface of the housing and the back surface of the housing in the thickness direction of the housing; ,
In the back surface of the housing, the plurality of sound passing holes are arranged to communicate with the plurality of sound passing holes adjacent in different directions with respect to the respective sound passing holes. A plurality of communication grooves different in arrangement direction ,
A portable electronic device characterized by comprising. The plurality of communication grooves are:
A plurality of vertical communication grooves disposed so as to respectively communicate between the plurality of sound passing holes adjacent in the height direction of the casing;
A plurality of lateral communication grooves disposed to respectively communicate between a plurality of sound passing holes adjacent in the width direction of the housing, and a plurality of sound passing holes adjacent in the diagonal direction of the housing And at least one of a plurality of diagonal communication grooves disposed to communicate with each other
It characterized by having a portable electronic device according to claim 1. A peripheral groove portion which is disposed around the sound passage hole portion disposed at the lowermost position in the height direction of the electronic device, and further disposed on the back surface and continuous with the vertical communication groove portion;
The housing unit is disposed at a position higher than the sound passing hole disposed at the top in the height direction of the electronic device and disposed in the housing unit, and the housing unit in the thickness direction of the housing And a plurality of vent holes penetrating between the front surface and the back surface;
The portable electronic device according to claim 1, further comprising at least one of: