JP5304179B2 - Electronic equipment - Google Patents

Description

  The present invention relates to an electronic device including an acoustic component.

  Conventionally, for example, electronic parts such as a mobile phone, a PDA (Personal Digital Assistant), a digital camera, a personal computer, a portable digital music player, and a radio receiver are provided with acoustic components such as a microphone, a receiver, and a speaker. Therefore, an acoustic hole for securing a sound path is formed in the housing of the electronic device. However, liquid enters from the acoustic hole.

  Therefore, the foaming sleeve arranged inside the acoustic hole absorbs the entering liquid and reduces the pressure of the entering liquid, and for the liquid that has entered the sleeve, A technique of draining in the direction in which gravity works is taken (see, for example, Patent Document 1).

Further, in order to prevent the intrusion of liquid while ensuring the acoustic performance, a method of arranging a waterproof paper between the front air chamber and the acoustic component is employed (for example, see Patent Document 2).
JP-A-6-292288 Japanese Patent Laid-Open No. 7-131375

  However, as in Patent Document 1, in order to drain the liquid that has entered the inside of the sleeve in the direction in which the weight works, a flow path for drainage is formed or water is passed for drainage. Since it is necessary to use a material, there exists a problem that a structure is restrict | limited.

  Further, as in the above-mentioned Patent Document 2, in the method of disposing waterproof paper between the front air chamber and the acoustic component, the liquid accumulated in the front air chamber becomes difficult to escape from the acoustic hole, and the target acoustic performance is achieved. There is a problem that it cannot be secured.

  An object of the present invention is to provide an electronic device that can easily drain water with a simple configuration in view of the above-described conventional situation.

  The electronic apparatus accommodates an acoustic component, a housing in which a space for the acoustic component is formed, a first position that covers a part of the space, and the space more than the first position. And a lid that takes a second position that increases the opening area to the outside of the casing.

  In the disclosed electronic device, the lid has a first position that covers a part of the space for the acoustic component, and a second position that makes the opening area of the space outside the housing larger than the first position. , Take. For this reason, when the lid is in the second position, it is easy to drain the water accumulated in the space. Therefore, according to the disclosed electronic device, draining can be facilitated with a simple configuration.

Hereinafter, an electronic device according to an embodiment of the present invention, for example, a mobile phone, will be described with reference to the drawings.
FIG. 1A is a plan view showing an open state of the mobile phone 1 according to one embodiment of the present invention. FIG. 1B is a left side view showing the opened state of the mobile phone 1.

FIG. 2A is a plan view of a main part of the mobile phone 1. 2B is a cross-sectional view taken along the line II of FIG. 2A. FIG. 2C is an enlarged view of a portion A in FIG. 2B.
FIG. 3A is a plan view of the main part of the mobile phone 1 with the cap 4 removed. 3B is a cross-sectional view taken along the line II-II in FIG. 3A. FIG. 3C is an enlarged view of a portion B in FIG. 3B.

As shown in FIG. 2C and the like, the mobile phone 1 includes a microphone unit 2 as an acoustic component, a housing 3 that accommodates the microphone unit 2, and a cap 4 as a lid.
The cellular phone 1 can be folded around a hinge portion 5 shown in FIGS. 1A and 1B. On one side of the mobile phone 1 with the hinge 5 interposed therebetween, that is, on the front side in FIG. 1A and FIG. 1B, a microphone hole 3a as an acoustic hole opened outside the housing 3, the cap 4, and an operation unit 6 including a numeric keypad. On the other side, a rectangular liquid crystal display unit 7, a speaker hole 3b for a speaker (not shown), and the like are provided.

  As shown in FIG. 2C, the microphone unit 2 is an SMT (Surface Mount Technology) microphone mounted on the substrate 8, and penetrates the microphone hole 3 a, a front air chamber 9 and a rear air chamber 10 described later, and the substrate 8. Sound outside the housing 3 is collected through the hole 8a.

  Inside the housing 3, a front air chamber 9 and a rear air chamber 10 are formed between the microphone hole 3 a and the microphone portion 2 as acoustic parts, for example, a space for the microphone portion 2. In the state shown in FIG. 2C, water W enters the front air chamber 9 from the microphone hole 3a.

  The front air chamber 9 communicates with the microphone hole 3 a and the rear air chamber 10 communicates with the through hole 8 a of the substrate 8. In addition, a waterproof sheet 11 is disposed between the front air chamber 9 and the rear air chamber 10 as a waterproof portion that allows sound to pass while blocking water.

  The front air chamber 9 is partitioned by a housing 3, a cap 4, a waterproof sheet 11 and an annular double-sided tape 12. The double-sided tape 12 is disposed between the housing 3 and the waterproof sheet 11 and constitutes the side wall of the front air chamber 9.

  The rear air chamber 10 is partitioned by the microphone portion 2, the substrate 8, the waterproof sheet 11, and the annular foam cushioning material 13. The foamable cushioning material 13 is disposed between the waterproof sheet 11 and the substrate 8 and constitutes the side wall of the rear air chamber 10.

  As shown in FIGS. 2A, 2B, etc., the cap 4 has a base 4a located on the front side of the mobile phone 1, that is, the front side in FIGS. 1A and 1B, and the center of the upper end of the base 4a toward the microphone hole 3a. Extending part 4b extending in a plan view and presents a T-shape in plan view.

  As shown in FIG. 2C, the housing 3 is formed with a recess 3 c that accommodates the extended portion 4 b so that the extended portion 4 b of the cap 4 does not protrude from the outer surface of the housing 3. The housing 3 has an opening 3d at a position continuous with the recess 3d.

  The cap 4 has a first position P1 (see FIGS. 2A to 2C) that covers a part of the front air chamber 9 by the extension 4b in the opening 3d, and a front air chamber 9 that is closer than the first position P1. The second position P2 (see FIGS. 3A to 3C) for increasing the opening area to the outside of the housing 3 is taken.

Specifically, the cap 4 is detachable with respect to the housing 3. When the cap 4 is attached to the housing 3, the cap 4 is in the first position P 1, and the removed position is the second position P 2. .
The extension part 4b of the cap 4 covers a part of the opening 3d of the housing 3 at the first position P1, thereby covering a part of the front air chamber 9 and an uncovered part of the opening 3d. The cap hole 3a is formed in

Further, the cap 4 covers the connection terminal 14 as an interface unit, which is located on the front side of the mobile phone 1 and connected to the external device, at the first position P1 by the base portion 4a.
In the present embodiment described above, the cap 4 has the first position P1 that covers a part of the front air chamber 9, and the opening of the front air chamber 9 to the outside of the housing 3 beyond the first position P1. A second position P2 for increasing the area is taken. Therefore, when the cap 4 is in the second position P2, that is, when the cap 4 is removed, the draining operation of the water accumulated in the front air chamber 9 is facilitated. Therefore, according to the present embodiment, it is possible to easily drain the water W accumulated in the front air chamber 9 with a simple configuration in which the cap 4 is disposed.

  In addition, according to the present embodiment, the cap 4 covers the connection terminal 14 at the first position P1 where the microphone hole 3a is formed. Therefore, it is not necessary to increase the number of components, and thus the front end can be configured with a simpler configuration. It is possible to easily drain the water W collected in the air chamber 9. Furthermore, when connecting an external device to the connection terminal 14, the water W can be drained together by opening the cap 4.

  In addition, according to the present embodiment, the cap 4 forms the microphone hole 3a that opens to the outside of the housing 3 between the cap 3 and the housing 3 at the first position P1, and thus has a simpler configuration. It is possible to easily drain the water W collected in the front air chamber 9.

  In addition, according to the present embodiment, the cap 4 forms the microphone hole 3a by covering a part of the front air chamber 9 separated from the rear air chamber 10 by the waterproof sheet 11, so that the front air chamber 9 and The water W accumulated in the front air chamber 9 can be easily drained while ensuring the acoustic performance by the rear air chamber 10.

  In addition, according to the present embodiment, the cap 4 is attached to the housing 3 at the first position P1 where the microphone hole 3a is formed, and is detachable from the housing 3. Therefore, the cap 4 is attached and detached. Therefore, it is possible to easily drain the water W, and therefore it is possible to further easily drain the water W.

  In the present embodiment described above, the cellular phone 1 has been described as an example of the electronic device. However, the electronic device may be any device including acoustic components such as a microphone, a receiver, a speaker, and the like. Other electronic devices such as a PDA (Personal Digital Assistant), a digital camera, a personal computer, a portable digital music player, and a radio receiver may be used.

  In the present embodiment, the two spaces of the front air chamber 9 and the rear air chamber 10 have been described as examples of the space for the acoustic component. However, the number of spaces may be one. The space for the acoustic component does not have to be an acoustic component, for example, the front air chamber 9 and the rear air chamber 10 (space) dedicated to the microphone unit 2, and may be a space that performs other functions.

  The space for the acoustic component may be a space that is continuous with the microphone hole 3a and has the same diameter as the microphone hole 3a. In that case, the cap 4 is disposed so as to extend in the depth direction of the space, It is preferable to cover a part of the space from the side.

Moreover, although the microphone part 2 was demonstrated to the example in this Embodiment as an acoustic component, other acoustic components, such as a receiver and a speaker, may be used as an acoustic component.
In the present embodiment, the cap 4 that is detachable from the housing 3 has been described as an example of the lid, but the lid is movable between the first position P1 and the second position P2. For example, a sliding lid may be used. In that case, since the movable lid has only to make the opening area of the front air chamber 9 larger than the first position P1 at the second position P2, the second position P2 is the front air chamber 9 It is not restricted to the position which does not cover, but the position which covers a part of the front air chamber 9 may be sufficient.

  Even using such a movable lid, similarly to the removable cap 4, the water W can be easily drained by moving the cap 4. Therefore, the water W can be drained. It can be made easier.

  Further, the cap 4 does not necessarily need to form an acoustic hole, for example, the microphone hole 3a, at the first position P1, and covers a part of the front air chamber 9 at a position not adjacent to the microphone hole 3a. Also good.

  Further, the cap 4 is, for example, one that can be detached while the base 4a is partly fixed to the housing 3, one that can be detached from the base 4a and the extension 4b, another space, For example, what covers the front air chamber 9 through a hole formed in the housing 3 may be used.

  In this embodiment, the connection terminal 14 is described as an example of the interface unit. However, as the interface unit, the connection terminal 14 used for connection with an external device, other external connection units, an operation unit such as a power source, a lamp, etc. And the like, and when the cap 4 covers a part of the front air chamber 9, the interface unit other than the connection terminal 14 may be covered.

FIG. 4 is a plan view showing an open state of the mobile phone 1 ′ according to the modification of the embodiment of the present invention.
5A and 5B are a plan view and a left side view of the cellular phone 1 ′ with the cap 4 ′ removed.

  In the cap 4 ′ of the mobile phone 1 ′ according to the present modification, the base 4 a ′ is not a part that covers the interface part, for example, the connection terminal, but is an attachment part to the housing 3. Therefore, it is not necessary to extend the base portion 4a ′ in the width direction, that is, the left-right direction in FIGS. 4 and 5A, and the width of the base portion 4a ′ is equal to the width of the extension portion 4b ′.

  Even if the base 4a ′ uses the cap 4 ′ that does not cover the connection terminal as in this modification, the water W accumulated in the front air chamber 9 can be easily drained with a simple configuration in which the cap 4 is arranged. can do.

Regarding the embodiment described above and its modifications, the following additional notes are disclosed.
(Appendix 1)
A housing that accommodates an acoustic component and in which a space for the acoustic component is formed;
A lid that takes a first position that covers a part of the space, and a second position in which the opening area of the space to the outside of the housing is larger than the first position;
An electronic device comprising:
(Appendix 2)
An interface unit;
The lid body covers a part of the space and further covers the interface unit in the first position.
The electronic device as set forth in appendix 1, wherein:
(Appendix 3)
2. The electronic apparatus according to claim 1, wherein the lid forms an acoustic hole that opens to the outside of the casing at the first position.
(Appendix 4)
The space includes a front air chamber, and a rear air chamber located between the front air chamber and the acoustic component,
The electronic device further includes a waterproof part positioned between the front air chamber and the rear air chamber,
The lid covers a part of the front air chamber in the first position;
The electronic device as set forth in appendix 1, wherein:
(Appendix 5)
The electronic apparatus according to claim 1, wherein the lid is attached to the casing at the first position and is detachable from the casing.
(Appendix 6)
The electronic apparatus according to claim 1, wherein the lid is movable between the first position and the second position.

It is a top view which shows the open state of the mobile telephone which concerns on one embodiment of this invention. It is a left view which shows the open state of the mobile telephone which concerns on one embodiment of this invention. It is a principal part top view of the mobile telephone which concerns on one embodiment of this invention. It is II sectional drawing of FIG. 2A. It is the A section enlarged view of FIG. 2B. It is a principal part top view of the state which removed the cap of the mobile telephone which concerns on one embodiment of this invention. It is II-II sectional drawing of FIG. 3A. It is the B section enlarged view of Drawing 3B. It is a top view which shows the open state of the mobile telephone which concerns on the modification of one embodiment of this invention. It is a top view of the state which removed the cap of the mobile telephone which concerns on the modification of one embodiment of this invention. It is the left view of the state which removed the cap of the mobile telephone which concerns on the modification of one embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable terminal 2 Microphone part 3 Housing | casing 3a Microphone hole 3b Speaker hole 3c Recessed part 3d Opening part 4 Cap 4a Base part 4b Extension part 5 Hinge part 6 Operation part 7 Liquid crystal display part 8 Board | substrate 8a Through-hole 9 Front air chamber 10 Rear air Chamber 11 Waterproof sheet 12 Double-sided tape 13 Foam cushioning material 14 Connection terminal

Claims (3)

A housing in which an acoustic component having an acoustic hole opened to the outside as a sound path is housed, and a space for the acoustic component is formed between the acoustic component and the acoustic hole ;
A first position in which a part of the covering has the space to the opening from the acoustic hole to the outside of the housing of the space, and to increase the opening area to the housing outside of the space than the first position A lid that takes a second position;
An interface unit,
The lid body covers a part of the space and further covers the interface unit in the first position.
Electronic device comprising a call. The electronic device according to claim 1, wherein the acoustic hole is formed between the lid and the housing at the first position. The space includes a front air chamber, and a rear air chamber located between the front air chamber and the acoustic component,
The electronic device further includes a waterproof part positioned between the front air chamber and the rear air chamber,
The lid covers a part of the front air chamber in the first position;
The electronic device according to claim 1.

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