JP2005100312A - Electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic device capable of further improving flexibility in shape of a housing. <P>SOLUTION: In the electronic device, the housing 10 has a lower case 11 and an upper case 12 covering the lower case 11. A loudspeaker 61 is stored in the housing 10. The lower case 11 and the upper case 12 are provided with wall parts 22, 32 made to abut against each other in front of the loudspeaker 61, respectively. Openings for emitting a sound 71, 72 opposed to the loudspeaker 61 are arranged at the wall part 22 of the lower case 11 and the wall part 32 of the upper case 12, respectively. The loudspeaker 61 is provided with a support member 63, and the support member 63 is supported by the housing 10 via a cushioning material 76. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electronic device such as a portable computer including a speaker.

  For example, as an electronic device such as a portable computer, an electronic device having a speaker is conventionally known. The housing includes a case main body whose bottom surface and back surface are opened over the entire surface, and a bottom plate that covers the bottom surface opening of the case main body. The front wall of the case body has a notch. The speaker is supported by a support panel to form a speaker unit. A large number of small holes for sound emission are formed at the center of the support panel.

The speaker is housed in the housing by incorporating the speaker unit into a notch formed in the front wall of the housing. The support panel is substantially flush with the front wall and the left and right side walls of the case body, and constitutes a part of the front wall and the left and right side walls.
Japanese Patent Laid-Open No. 7-13660 (paragraphs 0034 to 0035, paragraphs 0133 to 0139, FIG. 32)

In the technique described in Patent Document 1, a wall is projected downward from the edge of the upper wall of the case body constituting the housing by a height corresponding to the speaker, and the speaker is accommodated facing the wall. ing. And the sound emission hole is formed in the position facing the speaker of the wall projected from the edge of the upper wall of the case body. Alternatively, in another conventional technique, the casing is raised upward from the edge of the lower wall by the height corresponding to the speaker, and the speaker is accommodated facing this wall. In addition, a sound emitting hole is formed at a position facing the speaker on the wall rising from the edge of the lower wall of the case body. Thus, when housing a speaker in a portable computer, Since the wall is raised from the edge of one of the upper wall and the lower wall by the height corresponding to the speaker, the shape of the housing is restricted and the design is impaired. .

  The present invention has been made based on such circumstances, and an object of the present invention is to provide an electronic device that can further increase the degree of freedom of the shape of the housing.

  An electronic apparatus according to one aspect of the present invention includes a first case and a housing having a second case covering the first case, and a speaker housed in the housing. The first case and the second case each have a wall portion facing each other so as to face the speaker, and on the wall portion of the first case and the wall portion of the second case, Sound emission holes facing the speaker are provided, and the speaker has a support, and the support is supported by the housing via an elastic material.

  ADVANTAGE OF THE INVENTION According to this invention, the electronic device which can raise the freedom degree of the shape of a housing | casing more is obtained.

  A first embodiment of the present invention will be described below with reference to FIGS. 1 to 4 applied to a portable computer 1 as an electronic device.

  FIG. 1 discloses a notebook portable computer 1. The portable computer 1 includes a device main body 2 and a liquid crystal display unit 3.

  The apparatus main body 2 has a housing 10 made of resin. The housing 10 has a lower case 11 as a first case and an upper case 12 as a second case, and is formed in a flat box shape. The lower case 11 has a rectangular bottom wall 20, a front wall 22 as a wall portion that rises upward from the front edge portion of the bottom wall 20, and the upper side from the left and right side edges and the rear edge of the bottom wall 20. Left and right side walls 23 and 24 and a rear wall 25 are provided. The upper case 12 includes a rectangular upper wall 30 that faces the bottom wall 20, a front wall 32 that extends downward from the front edge of the upper wall 30, left and right side edges of the upper wall 30, and the rear It has left and right side walls 33 and 34 and a rear wall 25 extending downward from the edge.

  The upper case 12 has the front wall 32, the left and right side walls 33 and 34, and the front end of the rear wall 35 abut the front wall 22, the left and right side walls 23 and 24, and the front end of the rear wall 25, respectively. The lower case 11 is covered from above. In the present embodiment, the inside of the opening end of the upper case 12 is cut out in the circumferential direction, the outside of the opening end of the lower case 11 is cut out in the circumferential direction, and the cutout portion of the upper case 12 and the cutout portion of the lower case 11 are Are in contact with each other. In this state, the upper case 12 is fixed to the lower case 11. The outer surface 20a of the bottom wall 20 of the lower case 11 is a mounting surface, and the housing 10 is configured such that the outer surface 20a of the bottom wall 20 is opposed to an installation surface (not shown) such as a table top, for example. It can be installed on the installation surface.

  An outer surface 30 a of the upper wall 30 of the upper case 12 has a palm rest 40. The upper case 12 is provided with a keyboard mounting portion 41 behind the palm rest 40. A keyboard 42 is attached to the keyboard attachment portion 41. A pair of legs 43 a and 43 b for supporting the display unit are provided at the rear end of the upper case 12 so as to be separated from each other in the width direction of the housing 10. In this embodiment, the upper case 12 is formed of a single member. However, the upper case 12 includes a front member having a palm rest 40, and a rear member having a keyboard mounting portion 41 and legs 43a and 43b. You may comprise.

  The liquid crystal display unit 3 includes a display housing 50 and a liquid crystal panel 51 accommodated in the display housing 50. A display opening 53 is provided in the front wall 52 of the display housing 50. The opening 53 has a size covering most of the front wall 52, and the display screen of the liquid crystal panel 51 is exposed to the outside of the display housing 50 through the opening 53.

  The display housing 50 has a pair of connecting recesses 54 and 54b at one end thereof. These connecting recesses 54 a and 54 b are configured by depressions that open toward the front, lower, and rear of the display housing 50. The connection recesses 54 a and 54 b are arranged to be separated from each other in the width direction of the display housing 50 and are led to the leg portions 43 a and 43 b of the housing 10, respectively. These connecting recesses 54a and 54b are rotatably supported at the rear end of the housing 10 via hinge fittings.

  Therefore, the liquid crystal display unit 3 is rotatable between a closed position where the liquid crystal display unit 3 is tilted so as to cover the palm rest 40 and the keyboard 42 from above, and an open position where the palm rest 40 and the keyboard 42 are exposed. 1 and 2, the portable computer 1 is shown in the open position.

  As shown in FIGS. 3 and 4, a printed wiring board (not shown), HDD (hard disk drive, not shown), FDD (floppy disk drive) 60, a pair of speakers 61, etc. Is housed. The printed wiring board, HDD, and FDD 60 are screwed to the bottom wall 20 of the housing 10.

  The front wall 22 and the front wall 32 of the lower case 11 are spaced apart in the width direction of the housing 10 so as to face the pair of speakers 61, respectively, and sound emission holes 71 as first and second holes. , 72 are provided. Specifically, the front wall 32 of the upper case 12 is formed with a pair of openings 73 that expose the pair of speakers 61. A mesh member 74 having a mesh portion 74a and a frame portion 74b that supports the mesh portion 74a is fitted into the openings 73. The plurality of holes in the mesh portion 74 a become the plurality of sound emission holes 72 that emit the sound from the speaker 61 to the outside of the housing 10. A plurality of sound emission holes 71 are formed in the front wall 22 of the lower case 11. The sound emitting hole 71 of the lower case 11 is formed larger than the sound emitting hole (mesh portion hole) 72 of the upper case 12. Further, a support plate 75 that supports the speaker 61 projects in a vertical direction from the inner surface 20 b of the bottom wall 20 of the lower case 11.

  The speaker 61 has a vibrating body 62 and a support member 63. The vibrating body 62 is a device that converts sound current into sound, and is vibrated by, for example, a permanent magnet or an electromagnet. The speaker 61 is configured by surrounding the upper portion 62a, left and right side portions (not shown), the lower portion 62b, the peripheral edge of the front portion 62d, and the rear portion 62c of the vibrating body 62 with a case-like support member 63. The front part 62 d of the vibrating body 62 is exposed through the front opening 63 e of the support member 63.

  The speaker 61 is disposed such that the front portion 62 d of the vibrating body 62 exposed from the front opening 63 e of the support member 63 faces the sound emitting holes 71 and 72 of both the lower case 11 and the upper case 12. That is, the speaker 61 is disposed so as to straddle between the lower case 11 and the upper case 12.

  Between the speaker 61 and the inner surface of the housing 10, a cushion material 76 is provided as a vibration absorbing material that absorbs vibration. The speaker 61 is fixed to the housing 10 by a cushion material 76. The cushion material 76 is formed between the upper outer surface 63a of the support member 63 and the inner surface 30b of the upper wall 30 of the housing 10, and the front edge portion outer surface 63b of the support member 63 and the front wall of the housing 10, for example, the inner surface 32b of the front wall 22. Between the lower outer surface 63 c of the support member 63 and the inner surface 20 b of the bottom wall 20, and between the rear outer surface 63 d of the support member 63 and the front surface of the support plate 75. In FIG. 4, only the cushion material (elastic material) 76 provided on one side in the width direction of the speaker 61 is illustrated, but the cushion material 76 is also provided on the other side in the width direction of the speaker 61. Yes. That is, in this embodiment, a total of eight cushion materials 76 are provided. The cushion material 76 may be an integrally molded product that supports the speaker 61 so as to cover it.

  According to the portable computer 1 of the present embodiment, the lower case 11 and the upper case 12 have the front walls 22 and 32 as wall portions that face each other in front of the speaker 61, respectively. Sound emitting holes 71 and 72 facing the speaker 61 are provided in the front wall 22 and the front wall 32 of the upper case 12, respectively. Therefore, unlike the conventional portable computer, it is not necessary to raise the wall corresponding to the height of the speaker 61 only from the edge of one of the lower wall of the lower case or the upper wall of the upper case. . Therefore, the freedom degree of the shape of the housing | casing 10 can be raised more. Therefore, since the housing 10 can be designed with a higher degree of freedom than in the past, the portable computer 1 with good design can be obtained.

  Moreover, according to the portable computer 1 of the present embodiment, since the speaker 61 is arranged so as to straddle between the lower case 11 and the upper case 12, the sound emitted from the speaker 61 is used for sound emission of the lower case 11. Sound can be emitted to the outside of the housing 10 through the sound emitting holes 71 and 72 of both the hole 71 and the sound emitting hole 72 of the upper case 12.

  Further, since the size of the sound emitting hole 71 of the lower case 11 is formed larger than the size of the sound emitting hole 72 of the upper case 12, a relatively low sound emitted from the speaker 61 (with a relatively long wavelength). Sound) from the sound emission hole 71 of the lower case 11 to the outside of the housing 10 can be favorably emitted.

  Further, in the conventional technique, since the speaker 61 is screwed to the housing 10, vibration generated by the operation of the HDD or the FDD 60 is easily transmitted to the speaker 61 through the housing 10. Therefore, in the conventional technology, the speaker 61 may malfunction or abnormal noise (so-called chatter noise) may be generated due to vibration from the HDD or FDD 60.

  On the other hand, in the portable computer 1 of the present embodiment, a cushion material 76 as a vibration absorbing material that absorbs vibration is provided between the speaker 61 and the inner surface of the housing 10, and the speaker 61 is fixed by the cushion material 76. ing. For this reason, it is possible to make it difficult to transmit the vibration generated by the operation of the HDD or the FDD 60 to the speaker 61. Accordingly, it is possible to suppress the operation error of the speaker 61 and the occurrence of abnormal noise.

  Hereinafter, a second embodiment of the present invention will be described with reference to FIG.

  In the present embodiment, the opening 73 and the mesh member 74 are omitted, and a plurality of sound emission holes 72 are directly formed in the front wall 32 of the upper case 12. Further, the sound emission hole 72 of the upper case 12 is formed to be smaller than the sound emission hole 71 of the lower case 11. Note that other configurations are the same as those in the first embodiment described above including the portions not shown, and therefore, duplicate descriptions are omitted by attaching the same reference numerals to the drawings. In the present embodiment, the same effect as in the first embodiment can be obtained.

  In the first and second embodiments, the sound emitting hole 71 of the lower case 11 is formed larger than the sound emitting hole 72 of the upper case 12, but the sound emitting hole 71 of the lower case 11 is It may be formed to have the same size as the sound emission hole 72 of the upper case 12 or smaller than the sound emission hole 72 of the upper case 12.

  In the first and second embodiments, the speaker 61 is provided to face the front walls 22 and 32. However, the wall that faces the speaker 61 is not limited to the front walls 22 and 32. The speaker 61 may be provided so as to be opposed to the wall portion that is abutted with each other in front of the speaker 61 of the housing 10. For example, the speaker 61 is opposed to the side walls 23 and 33, the side walls 24 and 34, or the rear walls 25 and 35. Also good.

  Furthermore, in the first and second embodiments, the first case is the lower case 11 and the second case is the upper case 12. However, the first case and the second case that covers the first case are the second case. The case does not have to be joined in the vertical direction.

  The electronic device according to the present invention is not limited to a portable computer and can be widely applied to various electronic devices such as an electronic notebook and a PDA.

1 is a perspective view showing a portable computer according to a first embodiment of the present invention. The front view which shows the portable computer of FIG. Sectional drawing shown along the III-III line in FIG. Sectional drawing shown along the IV-IV line in FIG. Sectional drawing which shows the speaker vicinity of the portable computer which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Electronic device (portable computer), 10 ... Housing | casing, 11 ... 1st case (lower case), 12 ... 2nd case (upper case), 22 ... Wall part (front wall), 32 ... Wall part ( Front wall), 61 ... Speaker, 63 ... Support (support member), 71 ... Sound emission hole (first hole), 72 ... Sound emission hole (second hole), 76 ... Elastic material (cushion material) )

Claims (6)

A housing having a first case and a second case covering the first case;
A speaker housed in the housing,
The first case and the second case respectively have wall portions that face each other and face each other, and are formed on the wall portions of the first case and the second case, respectively. The sound emission hole facing the speaker is provided, and the speaker has a support body, and the support body is supported by the housing via an elastic material. machine.   The electronic apparatus according to claim 1, wherein the speaker is disposed so as to straddle between the first case and the second case.   3. The electronic apparatus according to claim 1, wherein the sound emitting hole of the first case and the sound emitting hole of the second case are formed in different sizes.   The first case is a lower case having a mounting surface, and the second case is an upper case that covers the first case from above, and the sound emission hole of the first case is the above-described case. The electronic device according to claim 3, wherein the electronic device is formed larger than the sound emitting hole of the second case. A first case having a wall portion provided with a first hole, and a wall portion provided with a second hole coupled to the first wall portion and formed smaller than the first hole. A second case comprising: a housing comprising:
A speaker housed in the housing and facing the first and second holes;
And
The speaker includes a support body, and the support body is supported by the housing via an elastic material.   6. The electronic apparatus according to claim 5, wherein the first hole is formed larger than the second hole.

Images