WO2013080669A1 - Dustproofing structure and electronic device - Google Patents

Dustproofing structure and electronic device Download PDF

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Publication number
WO2013080669A1
WO2013080669A1 PCT/JP2012/076022 JP2012076022W WO2013080669A1 WO 2013080669 A1 WO2013080669 A1 WO 2013080669A1 JP 2012076022 W JP2012076022 W JP 2012076022W WO 2013080669 A1 WO2013080669 A1 WO 2013080669A1
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WO
WIPO (PCT)
Prior art keywords
opening
annular
dust
lid
proof
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Application number
PCT/JP2012/076022
Other languages
French (fr)
Japanese (ja)
Inventor
翔 西山
加藤　茂
Original Assignee
Ｎｅｃカシオモバイルコミュニケーションズ株式会社
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Application filed by Ｎｅｃカシオモバイルコミュニケーションズ株式会社 filed Critical Ｎｅｃカシオモバイルコミュニケーションズ株式会社
Publication of WO2013080669A1 publication Critical patent/WO2013080669A1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment

Definitions

  • the present invention relates to a dustproof structure for preventing dust and liquid from entering through an opening of a casing of an electronic device, and an electronic device including the dustproof structure.
  • a mobile phone as a portable electronic device is required to be able to be carried safely without any breakdown even under various usage conditions.
  • the range of use of mobile phones is expanding, and the use of mobile phones is increasing in bathrooms and pools.
  • mobile phones with sufficient dust resistance (sand prevention) It is desired.
  • Patent Document 1 a configuration in which a grommet having an insertion hole through which a cable is inserted is attached to an opening, and an O-ring is attached to an outer peripheral portion of the grommet is disclosed (Patent Document 1). reference).
  • Patent Document 1 a configuration in which a grommet having an insertion hole through which a cable is inserted is attached to an opening, and an O-ring is attached to an outer peripheral portion of the grommet is disclosed (Patent Document 1). reference).
  • Patent Document 1 a configuration in which a grommet having an insertion hole through which a cable is inserted is attached to an opening, and an O-ring is attached to an outer peripheral portion of the grommet is disclosed.
  • a configuration is provided in which a lid for opening and closing the opening of the housing is provided, and an O-ring for ensuring waterproofness is provided on the outer peripheral portion of the lid. Is also known.
  • a waterproof member such as an O-ring or packing is used in order to ensure the waterproof property of the opening closed by the grommet, the lid, or the like.
  • a waterproof member such as an O-ring arranged on the grommet or the lid also functions as a dustproof member.
  • dust may enter the vicinity of the waterproof member. Therefore, in the structure in which the opening of the housing is closed with the lid, waterproofness is impaired by sand dust entering between the waterproof member provided on the outer periphery of the lid and the opening when the lid is opened and closed. There was a problem.
  • an object of the present invention is to provide a dustproof structure and an electronic device that can solve the problems of the related techniques.
  • An example of an object of the present invention is to provide a dustproof structure and an electronic device that can improve dustproofness and waterproofness of an opening closed by a lid.
  • a dustproof structure according to the present invention is arranged in a gap between a casing having an opening, a lid for opening and closing the opening, and the lid and the opening for closing the opening.
  • the annular dustproof member is disposed on the outer peripheral side of the annular waterproof member with a space from the annular waterproof member. The annular dustproof member and the annular waterproof member are compressed by the casing and the lid body in a state where the lid is closed.
  • the electronic device according to the present invention includes the dustproof structure of the present invention.
  • the waterproof property of the annular waterproof member can be prevented from being impaired, and the dustproof property and the waterproof property can be enhanced.
  • 1 is a perspective view showing a mobile phone according to a first embodiment.
  • 1 is a perspective view showing a mobile phone according to a first embodiment. It is a disassembled perspective view for demonstrating the dust-proof structure in 1st Embodiment. It is sectional drawing for demonstrating the state by which the battery cover of the dustproof structure in 1st Embodiment is opened and closed. It is sectional drawing for demonstrating the state by which the battery cover of the dustproof structure in 1st Embodiment is opened and closed. In 1st Embodiment, it is sectional drawing which shows the clearance gap between a battery cover and opening. It is sectional drawing for demonstrating the state by which the battery cover of the dustproof structure in 2nd Embodiment is opened and closed.
  • FIG. 1A and 1B are perspective views of the mobile phone according to the first embodiment.
  • FIG. 2 shows an exploded perspective view for explaining the dustproof structure in the first embodiment.
  • 3A and 3B are sectional views for explaining a state in which the battery lid having the dustproof structure in the first embodiment is opened and closed.
  • FIG. 4 shows a cross-sectional view of the gap between the battery lid and the opening in the first embodiment.
  • the cellular phone of this embodiment includes a circuit board (not shown), a display unit 5 having an LCD, an input unit 6 such as a button key, a transmitter unit 7 having a microphone, a receiver unit 8 having a receiver, and a receiver having an antenna. Although it is configured with a circuit (not shown), these components that are not related to the dustproof structure of the present invention are not related to the features of the present invention, and thus the description thereof is omitted.
  • the mobile phone according to the embodiment includes a battery mounting portion 10 to which a secondary battery (not shown) is mounted, and the battery mounting portion 10 is a battery from the outside of the housing 11.
  • a dustproof structure 1 is provided for preventing liquid and dust from entering the mounting portion 10.
  • the dust-proof structure 1 in the first embodiment includes a housing 11 having an opening 12 and a battery lid 13 as a lid for opening and closing the opening 12. And an annular dustproof member 16 and an annular waterproof member for sealing the gap 15, which are arranged between the battery lid 13 closing the opening 12 and the opening 12 and extending from the outside of the housing 11 toward the inside. 17.
  • the annular dustproof member 16 is disposed on the outer peripheral side of the annular waterproof member 17 with a space S separated from the annular waterproof member 17.
  • the dustproof structure 1 is configured such that the annular dustproof member 16 and the annular waterproof member 17 are compressed by the housing 11 and the battery lid 13 when the battery lid 13 closes the opening 12.
  • the gap 15 extends in a direction intersecting the opening surface from the first portion toward the inside of the housing 11 from the first portion 15 a extending in a direction parallel to the opening surface of the opening 12. And a second portion 15b.
  • An annular dustproof member 16 is disposed on the first portion 15a
  • an annular waterproof member 17 is disposed on the second portion 15b.
  • the gap 15 has a third portion 15 c extending from the first portion 15 a toward the outside of the housing 11 in a direction orthogonal to the opening surface.
  • the “opening surface” refers to a virtual plane connecting the edges of the opening.
  • annular dustproof member 16 a low repulsion material such as a so-called low repulsion elastomer or a low repulsion cushion is used.
  • annular waterproof member 17 a so-called annular waterproof packing such as an O-ring is used.
  • the low repulsion material forming the annular dustproof member 16 requires less force for compression and less repulsion after compression than silicon elastomer and urethane elastomer. For this reason, it is possible to easily perform an opening / closing operation using the battery lid 13, and it is possible to prevent the battery lid 13 from opening when the dustproof structure 1 is dropped. Therefore, the engagement hook 18 can be simply configured. Even if sand dust is sandwiched between the annular dust-proof member 16 and the housing 11, the housing 11 is hardly damaged and is highly flexible, so that it is easy to maintain a sealed state.
  • the annular dustproof member and the annular waterproofing member may be formed of the same material as necessary.
  • the present embodiment includes an engagement structure for engaging the battery lid 13 with the housing 11.
  • this invention is not limited to the structure provided with an engagement structure, Fixing members, such as a fixing screw (not shown) which fixes a battery cover to a housing
  • the battery lid 13 is formed with an engagement hook 18 as an engagement portion that engages with the housing 11 on the inner peripheral side of the annular waterproof member 17.
  • the engagement hooks 18 are formed at a plurality of locations along the circumferential direction of the battery lid 13, but may be formed in an annular shape over the entire circumference.
  • the housing 11 has an engagement recess 19 that engages with the engagement hook 18 of the battery lid 13 in the vicinity of the opening 12 and is formed in an annular shape along the circumferential direction of the opening 12.
  • the engagement state between the engagement hook 18 and the engagement recess 19 is released by elastically deforming the engagement hook 18 from the outer peripheral side to the inner peripheral side of the annular waterproof member 17.
  • the inner surface and the edge of the opening 12 are formed in a smooth surface from the outer side to the inner side of the housing 11. For this reason, even when dust adheres to the inner surface and the edge of the opening 12, it is possible to easily wipe the dust when the battery cover 13 is opened.
  • the dust-proof structure 1 maintains the state in which the battery cover 13 closes the opening 12 by engaging the engagement hook 18 of the battery cover 13 with the engagement recess 19. With the battery lid 13 closing the opening 12, the annular dustproof member 16 and the annular waterproof member 17 disposed in the gap 15 are respectively compressed by the battery lid 13 and the housing 11.
  • the annular dust-proof member 16 disposed in the gap 15 causes the dust to enter the inside of the housing 11 with the battery cover 13 closing the opening 12 of the housing 11. Can be prevented.
  • the annular dustproof member 16 and the annular waterproofing member 17 are arranged with a space S in the gap 15 between the battery lid 13 that closes the opening 12 of the housing 11 and the opening 12. Therefore, even if sand dust enters the inside of the housing 11 from the annular dustproof member 16, there is a high possibility that the dust will be retained by the space S between the annular dustproof member 16 and the annular waterproof member 17. The possibility that dust entering from the annular dustproof member 16 reaches the annular waterproofing member 17 can be reduced.
  • the sand adhering to the outer peripheral side of the annular dustproof member 16 can be easily washed away.
  • the dust-proof structure 1 in the present embodiment can be used with peace of mind even under conditions where a lot of dust adheres to the housing 11 such as sea bathing or field work, and a mobile phone having a high dust-proof property. realizable.
  • the dust-proof structure 1 in the first embodiment includes the engagement hook 18 that engages the battery lid 13 with the housing 11, the battery lid 13 can be adjusted by adjusting the shape of the engagement hook 18. It is possible to adjust the compression amount of the annular dustproof member 16 that is compressed when is closed. Even if the opening 12 of the housing 11 or the battery lid 13 is warped or uneven in the process of designing and manufacturing the dustproof structure 1, by adjusting the compression amount of the annular dustproof member 16, The hermeticity of the opening 12 closed by the battery lid 13 can be maintained.
  • the engagement hook 18 is provided only on the inner peripheral side of the battery lid 13, and on the outer peripheral side of the battery lid 13 as in other embodiments described later. Compared with the configuration in which the engagement hook is provided, this is advantageous in terms of downsizing and simplifying the entire dustproof structure 1. Furthermore, since the configuration of the outer edge portion of the battery cover 13 is simpler than that of other embodiments described later, this embodiment exits from the gap 15 to the outside of the housing 11 when dust enters the gap 15. It becomes easy.
  • (Second Embodiment) 5A and 5B are sectional views for explaining a state in which the battery lid having a dustproof structure in the second embodiment is opened and closed.
  • the dust-proof structure in the second embodiment is different from the first embodiment in that it includes a battery lid provided with engagement hooks on the outer peripheral side and the inner peripheral side of the annular dust-proof member.
  • the dust-proof structure 2 in the second embodiment includes a casing 21 having an opening 22 and a battery lid 23 for opening and closing the opening 22.
  • the battery lid 23 is provided with an outer hook 28a and an inner hook 28b as an outer engagement portion and an inner engagement portion on the outer peripheral side of the annular dust-proof member 16 and the inner peripheral side of the annular waterproof member 17, respectively.
  • the outer hooks 28 a are formed at a plurality of locations along the circumferential direction of the battery lid 13 on the outer peripheral side of the annular dust-proof member 16.
  • the inner hooks 28 b are formed at a plurality of locations along the circumferential direction of the battery lid 13 on the inner peripheral side of the annular waterproof member 17.
  • the casing 21 is formed with an outer recess 29a and an inner recess 29b in the vicinity of the opening 22 for engaging the outer hook 28a and the inner hook 28b of the battery lid 23, respectively.
  • the outer recess 29 a is formed in an annular shape along the circumferential direction of the opening 22 on the outer peripheral side of the opening 22.
  • the inner recess 29 b is formed in an annular shape along the circumferential direction of the opening 22 on the inner peripheral side of the opening 22.
  • the battery lid 23 needs to be elastically deformed when the outer hook 28a and the inner hook 28b are engaged with the outer recess 29a and the inner recess 29b, respectively. Is preferably formed.
  • the battery lid 23 When the battery lid 23 is attached to the opening 22 in the dustproof structure 2 by being formed with a material having flexibility or a dimension that exhibits flexibility, first, the inner hook 28b is engaged with the inner recess 29b, Subsequently, the outer hook 28a is engaged with the outer recess 29a, so that the battery lid 23 can be smoothly engaged with the casing 21.
  • the annular dust-proof member 16 is attached. Since excessive force is applied or the annular dust-proof member 16 is disposed on the outer peripheral side of the annular waterproof member 17, a larger amount of air is contained in the housing 21 than when the annular waterproof member 17 is sealed first. As a result, the pressure in the housing 21 becomes relatively high. As described above, as the internal pressure of the housing 21 increases, a lid that closes the other openings of the housing 21 with a relatively small holding force, for example, a cover that closes the memory card slot opens. May occur. However, in the present embodiment, by using the battery cover 23 having flexibility, the outer hook 28a can be engaged after the inner hook 28b is engaged first, which causes the above-described disadvantages. Can be prevented.
  • the inner hook 28b is elastically deformed in a direction from the outer peripheral side of the annular dust-proof member 16 toward the inner peripheral side with respect to the housing 21 when the engagement state with the inner concave portion 29b is released. Will do.
  • the outer hook 28a is elastically deformed in the direction from the inner peripheral side of the annular dust-proof member 16 toward the outer peripheral side with respect to the housing 21 when the engagement state with the outer concave portion 29a is released.
  • the outer hook 28a and the inner hook 28b are reversely elastically deformed when the engagement state with the casing 21 is released. Therefore, the battery lid 23 is opened by an impact or the like when dropped. Can be further prevented from coming off.
  • the outer hook 28 a and the inner hook 28 b are arranged on the battery lid 23 having flexibility with a desired interval between the outer peripheral side of the annular dust-proof member 16 and the inner peripheral side of the annular waterproof member 17.
  • it can be configured to elastically deform in the opposite direction when the engagement state with the housing 21 is released.
  • the dustproofness and waterproofness can be improved as in the first embodiment.
  • the dust-proof structure 2 in the second embodiment includes a battery lid 23 in which a pair of outer hooks 28a and inner hooks 28b are formed on the outer peripheral side of the annular dust-proof member 16 and the inner peripheral side of the annular waterproof member 17.
  • the annular dustproof member 16 can be uniformly compressed over the outer peripheral side and the inner peripheral side. Thereby, the dustproof property of the annular dustproof member 16 can be further enhanced.
  • FIG. 6A to 6C are cross-sectional views for explaining a state in which the battery lid having a dustproof structure in the third embodiment is opened and closed.
  • the dustproof structure in the third embodiment is different from the above-described embodiment in that the battery lid includes a dustproof outer lid and a waterproof inner lid.
  • the dust-proof structure 3 includes a housing 21 having an opening 22 and a battery lid 33 for opening and closing the opening 22.
  • the battery lid 33 closes the opening 22 and a dust-proof outer lid 33 a as a first lid that presses the annular dustproof member when the opening 22 is closed. It is configured in combination with a waterproof inner lid 33b as a second lid body that sometimes presses the annular waterproof member 17.
  • the outer lid 33a for dust prevention is formed with an outer hook 38a that engages with the casing 21, and the annular dust-proof member 16 is attached to the inner peripheral side of the outer hook 38a.
  • the waterproof inner lid 33b is arranged inside the dustproof outer lid 33a.
  • the waterproof inner lid 33b is formed with an inner hook 38b that engages with the casing 21, and the annular waterproof member 17 is attached to the outer peripheral side of the inner hook 38b. Yes.
  • the inside of the outer lid 33a for dust prevention has an inner surface substantially parallel to the opening surface.
  • the outer surface of the waterproof inner lid 33b has an outer surface substantially parallel to the opening surface.
  • the dust can be removed by removing it from the opening, washing the entire battery lid with water, drying and attaching it to the opening.
  • the housing side it is not possible to wash the water around the opening with the battery lid removed from the opening, so it is necessary to carefully and carefully wipe off the dust adhering to the periphery of the opening.
  • the battery cover in the above-described embodiment is configured by combining two parts, a dust-proof outer lid 33a and a waterproof inner lid 33b. .
  • the outer lid 33a for dust protection is removed from the opening 22, and the outer casing 33a for dust prevention and the inner lid 33b for waterproofing are attached. Both 21 can be washed together.
  • the dust attached to the periphery of the opening 22 can be easily removed by washing the casing 21 side with water.
  • the dust-proof outer lid 33a is first removed from the opening 22.
  • the dust-proof outer lid 33a and the waterproof lid are each washed with water.
  • the waterproof inner lid 33b is formed using a transparent material, and the shape of the waterproof inner lid 33b and the housing 21 is devised to provide a gap between the waterproof inner lid 33b and the opening 22. It is also possible to easily confirm the presence or absence of dust that remains without being removed. Thereby, the dust can be removed smoothly without leaving the dust around the opening 22.
  • the annular dustproof member 16 and the annular waterproof member 17 are separate bodies, a battery configured by combining the dustproof outer lid 33a and the waterproof inner lid 33b.
  • a lid 33 can be provided.
  • the dustproof outer lid 33a and the waterproof inner lid 33b the dust adhered to the battery lid 33 and the housing 21 can be more reliably removed.
  • the outer hook 38 a provided on the dust-proof outer lid 33 a and the inner hook 38 b provided on the waterproof inner lid 33 b release the engaged state with the housing 21. Since the direction of elastic deformation is sometimes reversed, similarly to the second embodiment, it is possible to further prevent the battery lid 23 from being removed from the opening 22 due to an impact at the time of dropping or the like.
  • FIG. 7A and 7B are cross-sectional views for explaining a state in which the battery lid having a dustproof structure in the fourth embodiment is opened and closed.
  • 8A to 8C are cross-sectional views for explaining the operation of the annular dustproof member when the battery lid having the dustproof structure in the fourth embodiment is opened.
  • FIG. 9 sectional drawing for demonstrating operation
  • the fourth embodiment when the battery cover is closed, the annular dustproof member is compressed in a direction perpendicular to the opening surface of the opening of the housing.
  • the fourth embodiment is different from the above-described embodiment in that the annular dustproof member 14 is compressed in a direction parallel to the opening surface of the opening of the housing. .
  • the dustproof structure 4 in the fourth embodiment is different from the annular dustproof member 16 in the first embodiment in the shape of the annular dustproof member.
  • the dust-proof structure 4 in the fourth embodiment includes an annular dust-proof member 46 disposed on the outer peripheral side of the annular waterproof member 17.
  • An annular dustproof member 46 and an annular waterproof member 17 for sealing the gap 15 are disposed in the gap 15 extending from the outside of the housing 11 to the inside between the battery lid 13 and the opening 12 that close the opening 12. Yes.
  • the annular dustproof member 46 is disposed on the outer peripheral side of the annular waterproof member 17 with a space S spaced from the annular waterproof member 17.
  • the dustproof structure 4 is configured such that the annular dustproof member 46 and the annular waterproof member 17 are compressed by the housing 11 and the battery lid 13 when the battery lid 13 closes the opening 12.
  • the annular dustproof member 46 includes a sliding portion 46a that slides on a third portion 15c extending in a direction orthogonal to the opening surface when the battery lid 13 opens and closes the opening 12. Have. When the battery cover 13 closes the opening 12, the sliding part 46a is compressed in a direction parallel to the opening surface. Strictly speaking, in the annular dustproof member 46, the sliding portion 46a extends in a direction inclined with respect to the opening surface, and is slightly compressed in a direction orthogonal to the opening surface.
  • the engagement hook 18 is engaged with the engagement recess 19, and the battery cover 13 is attached to the housing 11 by the static frictional force generated by the annular dust-proof member 46 and the annular waterproof member 17.
  • the annular dustproof member 46 and the annular waterproofing member 17 are elastically deformed by being compressed by the battery lid 13 and the housing 11 and keep the opening 12 sealed.
  • the annular dustproof member 46 has a function of preventing dust from entering the inside of the housing 11, but with respect to a liquid such as water, the annular waterproofing member 17 allows the liquid such as water to enter the inside of the housing 11. In order to prevent this, the annular dust-proof member 46 may allow the liquid to enter the inside of the housing 11.
  • the sliding portion 46a of the annular dustproof member 46 is formed on the edge of the opening 12 of the housing 11 as shown in FIG. Guided along the surface 12a to the inside of the housing 11, the sliding portion 46a is compressed without being damaged.
  • the guide surface 12a is formed as an inclined surface at the edge of the opening 12, and the end of the sliding portion 46a of the annular dustproof member 46 is formed in an arc shape so that it slides when the battery lid 13 is opened.
  • the dust is swept out of the opening 12 by the portion 46a, and when the battery lid 13 is closed, the sliding portion 46a slides along the edge of the opening 12, thereby smoothly elasticating the annular dustproof member 46. It can be deformed and compressed.
  • annular dustproof member does not compress with respect to the direction parallel to the opening surface of the opening 12 like this embodiment over the perimeter of the circumferential direction of the battery cover 13, but a part of cyclic
  • an outer hook may be provided on the outer peripheral side of the annular dustproof member 46, and the same effect as in the third embodiment is obtained.
  • both the annular dustproof member 46 and the annular waterproof member 17 are compressed in the direction parallel to the opening surface of the opening 12. A repulsive force in the direction perpendicular to the surface is avoided. For this reason, it is possible to prevent the force from acting in the direction of opening the battery cover 13 with the opening 12 closed, and to prevent the battery cover 13 with the opening 12 closed when the dustproof structure 4 is dropped. Since it is not necessary to have a large holding force, the structure of the engagement hook 18 and the engagement recess 19 can be simplified.
  • the present invention is applied to the battery cover for opening and closing the opening of the housing, but the present invention is not limited to the battery cover, and may be applied to other openings in which connection terminals and the like are arranged. Of course.
  • the present invention is suitable for all small portable electronic devices that require dustproof and sandproof performance, such as cellular phones, portable audio devices, PDAs (Personal Data Assistants), notebook PCs (personal computers), and electronic book readers. is there.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention is provided with: a casing (11) having an opening (12); a lid body (13) for opening/closing the opening (12); and placed in a gap (15) between the opening (12) and the lid body (13) closing the opening (12), a ring-shaped dustproofing member (16) and a ring-shaped waterproofing member (17) that exist for the purpose of sealing the gap (15). The ring-shaped dustproofing member (16) is placed on the outer edge of the casing (11) relative to the ring-shaped waterproofing member (17), leaving a space (S) to the ring-shaped waterproofing member (17). In a state in which the lid body (13) has closed the opening (12), the ring-shaped dustproofing member (16) and the ring-shaped waterproofing member (17) are compressed by the casing (11) and the lid body (13).

Description

防塵構造及び電子機器Dust-proof structure and electronic equipment
　本発明は、電子機器の筐体の開口から砂塵や液体が入ることを防ぐための防塵構造、及び防塵構造を備える電子機器に関する。 The present invention relates to a dustproof structure for preventing dust and liquid from entering through an opening of a casing of an electronic device, and an electronic device including the dustproof structure.
　携帯型の電子機器としての携帯電話機は、様々な利用状況下においても故障することなく、安心して携帯できることが求められている。携帯電話機の利用範囲が拡大しており、浴室やプールなどで利用される場合も増えている。携帯電話機の利用範囲を更に拡大するために、海水浴や畑仕事などの砂塵が多い場所での利用を考えた場合、防水性に加えて、十分な防塵性（防砂性）を備えた携帯電話機が望まれている。 A mobile phone as a portable electronic device is required to be able to be carried safely without any breakdown even under various usage conditions. The range of use of mobile phones is expanding, and the use of mobile phones is increasing in bathrooms and pools. In order to further expand the range of use of mobile phones, when considering use in places where there is a lot of dust such as sea bathing and field work, in addition to waterproofness, mobile phones with sufficient dust resistance (sand prevention) It is desired.
　本発明に関連する電子機器としては、ケーブルが挿通される挿通孔を有するグロメットが、開口に取り付けられており、グロメットの外周部にＯリングが取り付けられた構成が開示されている（特許文献１参照）。この構成では、グロメットと開口との間に配されたＯリングによって、開口の防水性が高められている。 As an electronic apparatus related to the present invention, a configuration in which a grommet having an insertion hole through which a cable is inserted is attached to an opening, and an O-ring is attached to an outer peripheral portion of the grommet is disclosed (Patent Document 1). reference). In this configuration, the waterproofness of the opening is enhanced by the O-ring disposed between the grommet and the opening.
　また、本発明に関連する電子機器としては、筐体の開口を開閉するための蓋体を備えており、蓋体の外周部に、防水性を確保するためのＯリングが設けられている構成も知られている。 In addition, as an electronic device related to the present invention, a configuration is provided in which a lid for opening and closing the opening of the housing is provided, and an O-ring for ensuring waterproofness is provided on the outer peripheral portion of the lid. Is also known.
特開２０１１－２０５４９８号公報JP 2011-205498 A
　上述したように、一般に、グロメットや蓋体等によって閉じられた開口の防水性を確保するために、Ｏリングやパッキン等の防水部材が用いられている。 As described above, generally, a waterproof member such as an O-ring or packing is used in order to ensure the waterproof property of the opening closed by the grommet, the lid, or the like.
　本発明に関連する携帯電話機では、防塵性を有しているものであっても、グロメットや蓋体に配されたＯリング等の防水部材が、防塵部材としての機能を兼ねている。このような構成では、防水部材の近傍まで塵埃が入り込んでしまう可能性があった。したがって、筐体の開口を蓋体で閉じる構造では、蓋体の開閉時に、蓋体の外周部に設けられた防水部材と開口との間に砂塵が入り込むことで、防水性が損なわれてしまう問題があった。 In the cellular phone related to the present invention, even if the cellular phone has a dustproof property, a waterproof member such as an O-ring arranged on the grommet or the lid also functions as a dustproof member. In such a configuration, there is a possibility that dust may enter the vicinity of the waterproof member. Therefore, in the structure in which the opening of the housing is closed with the lid, waterproofness is impaired by sand dust entering between the waterproof member provided on the outer periphery of the lid and the opening when the lid is opened and closed. There was a problem.
　そこで、本発明は、上記関連する技術の課題を解決することができる防塵構造及び電子機器を提供することを目的とする。本発明の目的の一例は、蓋体によって閉じられた開口の防塵性及び防水性を高めることができる防塵構造及び電子機器を提供することにある。 Therefore, an object of the present invention is to provide a dustproof structure and an electronic device that can solve the problems of the related techniques. An example of an object of the present invention is to provide a dustproof structure and an electronic device that can improve dustproofness and waterproofness of an opening closed by a lid.
　上述した目的を達成するため、本発明に係る防塵構造は、開口を有する筐体と、開口を開閉するための蓋体と、開口を閉じる蓋体と開口との間の間隙に配置され、間隙を密封するための環状の環状防塵部材及び環状防水部材と、を備える。環状防塵部材は、環状防水部材の外周側に、環状防水部材に対して空間を隔てて配置される。環状防塵部材及び環状防水部材は、蓋体が開口を閉じている状態で、筐体と蓋体とによって圧縮される。 In order to achieve the above-described object, a dustproof structure according to the present invention is arranged in a gap between a casing having an opening, a lid for opening and closing the opening, and the lid and the opening for closing the opening. An annular annular dustproof member and an annular waterproofing member for sealing. The annular dustproof member is disposed on the outer peripheral side of the annular waterproof member with a space from the annular waterproof member. The annular dustproof member and the annular waterproof member are compressed by the casing and the lid body in a state where the lid is closed.
　また、本発明に係る電子機器は、本発明の防塵構造を備える。 Also, the electronic device according to the present invention includes the dustproof structure of the present invention.
　本発明によれば、環状防水部材の防水性が損なわれることを防ぎ、防塵性及び防水性を高めることができる。 According to the present invention, the waterproof property of the annular waterproof member can be prevented from being impaired, and the dustproof property and the waterproof property can be enhanced.
第１の実施形態の携帯電話機を示す斜視図である。1 is a perspective view showing a mobile phone according to a first embodiment. 第１の実施形態の携帯電話機を示す斜視図である。1 is a perspective view showing a mobile phone according to a first embodiment. 第１の実施形態における防塵構造を説明するための分解斜視図である。It is a disassembled perspective view for demonstrating the dust-proof structure in 1st Embodiment. 第１の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図である。It is sectional drawing for demonstrating the state by which the battery cover of the dustproof structure in 1st Embodiment is opened and closed. 第１の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図である。It is sectional drawing for demonstrating the state by which the battery cover of the dustproof structure in 1st Embodiment is opened and closed. 第１の実施形態において、電池蓋と開口との間の間隙を示す断面図である。In 1st Embodiment, it is sectional drawing which shows the clearance gap between a battery cover and opening. 第２の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図である。It is sectional drawing for demonstrating the state by which the battery cover of the dustproof structure in 2nd Embodiment is opened and closed. 第２の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図である。It is sectional drawing for demonstrating the state by which the battery cover of the dustproof structure in 2nd Embodiment is opened and closed. 第３の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図である。It is sectional drawing for demonstrating the state by which the battery cover of the dustproof structure in 3rd Embodiment is opened and closed. 第３の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図である。It is sectional drawing for demonstrating the state by which the battery cover of the dustproof structure in 3rd Embodiment is opened and closed. 第３の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図である。It is sectional drawing for demonstrating the state by which the battery cover of the dustproof structure in 3rd Embodiment is opened and closed. 第４の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図である。It is sectional drawing for demonstrating the state by which the battery cover of the dust-proof structure in 4th Embodiment is opened and closed. 第４の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図である。It is sectional drawing for demonstrating the state by which the battery cover of the dust-proof structure in 4th Embodiment is opened and closed. 第４の実施形態における防塵構造の電池蓋を開くときの環状防塵部材の動作を説明するための断面図である。It is sectional drawing for demonstrating operation | movement of the cyclic | annular dustproof member when opening the battery cover of the dustproof structure in 4th Embodiment. 第４の実施形態における防塵構造の電池蓋を開くときの環状防塵部材の動作を説明するための断面図である。It is sectional drawing for demonstrating operation | movement of the cyclic | annular dustproof member when opening the battery cover of the dustproof structure in 4th Embodiment. 第４の実施形態における防塵構造の電池蓋を開くときの環状防塵部材の動作を説明するための断面図である。It is sectional drawing for demonstrating operation | movement of the cyclic | annular dustproof member when opening the battery cover of the dustproof structure in 4th Embodiment. 第４の実施形態における防塵構造の電池蓋を閉じるときの環状防塵部材の動作を説明するための断面図である。It is sectional drawing for demonstrating operation | movement of the cyclic | annular dustproof member when closing the battery cover of the dustproof structure in 4th Embodiment.
　以下、本発明の具体的な実施形態について、図面を参照して説明する。 Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
　（第１の実施形態）
　図１Ａ、１Ｂに、第１の実施形態の携帯電話機の斜視図を示す。図２に、第１の実施形態における防塵構造を説明するための分解斜視図を示す。図３Ａ、３Ｂに、第１の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図を示す。図４に、第１の実施形態において、電池蓋と開口との間の間隙の断面図を示す。 (First embodiment)
1A and 1B are perspective views of the mobile phone according to the first embodiment. FIG. 2 shows an exploded perspective view for explaining the dustproof structure in the first embodiment. 3A and 3B are sectional views for explaining a state in which the battery lid having the dustproof structure in the first embodiment is opened and closed. FIG. 4 shows a cross-sectional view of the gap between the battery lid and the opening in the first embodiment.
　本実施形態の携帯電話機は、回路基板（不図示）、ＬＣＤ等を有する表示部５、ボタンキー等の入力部６、マイクを有する送話部７、レシーバを有する受話部８、アンテナを有する受信回路（不図示）を備えて構成されるが、これらの本発明の防塵構造に関連しない構成部品については、本発明の特徴に関連しないので説明を省略する。 The cellular phone of this embodiment includes a circuit board (not shown), a display unit 5 having an LCD, an input unit 6 such as a button key, a transmitter unit 7 having a microphone, a receiver unit 8 having a receiver, and a receiver having an antenna. Although it is configured with a circuit (not shown), these components that are not related to the dustproof structure of the present invention are not related to the features of the present invention, and thus the description thereof is omitted.
　図１Ａ及び図１Ｂに示すように、実施形態の携帯電話機は、二次電池（不図示）が装着される電池装着部１０を備えており、電池装着部１０が、筐体１１の外部から電池装着部１０内に液体及び砂塵が入ることを防ぐための防塵構造１を有している。 As shown in FIGS. 1A and 1B, the mobile phone according to the embodiment includes a battery mounting portion 10 to which a secondary battery (not shown) is mounted, and the battery mounting portion 10 is a battery from the outside of the housing 11. A dustproof structure 1 is provided for preventing liquid and dust from entering the mounting portion 10.
　第１の実施形態における防塵構造１は、図２、図３Ａ、図３Ｂ及び図４に示すように、開口１２を有する筐体１１と、開口１２を開閉するための蓋体としての電池蓋１３と、開口１２を閉じる電池蓋１３と開口１２との間の、筐体１１の外側から内側に向かって延びる間隙１５に配置された、間隙１５を密封するための環状防塵部材１６及び環状防水部材１７と、を備えている。 As shown in FIGS. 2, 3A, 3B, and 4, the dust-proof structure 1 in the first embodiment includes a housing 11 having an opening 12 and a battery lid 13 as a lid for opening and closing the opening 12. And an annular dustproof member 16 and an annular waterproof member for sealing the gap 15, which are arranged between the battery lid 13 closing the opening 12 and the opening 12 and extending from the outside of the housing 11 toward the inside. 17.
　環状防塵部材１６は、図４に示すように、環状防水部材１７の外周側に、環状防水部材１７に対して空間Ｓを隔てて配置されている。そして、防塵構造１は、電池蓋１３が開口１２を閉じているときに、環状防塵部材１６と環状防水部材１７が、筐体１１と電池蓋１３とによって圧縮されるように構成されている。 As shown in FIG. 4, the annular dustproof member 16 is disposed on the outer peripheral side of the annular waterproof member 17 with a space S separated from the annular waterproof member 17. The dustproof structure 1 is configured such that the annular dustproof member 16 and the annular waterproof member 17 are compressed by the housing 11 and the battery lid 13 when the battery lid 13 closes the opening 12.
　間隙１５は、図４に示すように、開口１２の開口面に平行な方向に延びる第１の部分１５ａと、第１の部分から筐体１１の内側に向かって開口面に交差する方向に延びる第２の部分１５ｂと、を有している。環状防塵部材１６が第１の部分１５ａに配されており、環状防水部材１７が第２の部分１５ｂに配されている。また、間隙１５は、第１の部分１５ａから筐体１１の外側に向かって、開口面に直交する方向に延びる第３の部分１５ｃを有している。なお、本発明において、「開口面」とは、開口の縁部を結ぶ仮想的な平面を指している。 As shown in FIG. 4, the gap 15 extends in a direction intersecting the opening surface from the first portion toward the inside of the housing 11 from the first portion 15 a extending in a direction parallel to the opening surface of the opening 12. And a second portion 15b. An annular dustproof member 16 is disposed on the first portion 15a, and an annular waterproof member 17 is disposed on the second portion 15b. Further, the gap 15 has a third portion 15 c extending from the first portion 15 a toward the outside of the housing 11 in a direction orthogonal to the opening surface. In the present invention, the “opening surface” refers to a virtual plane connecting the edges of the opening.
　環状防塵部材１６としては、いわゆる低反発性を有するエラストマーや低反発性クッション等の低反発材料が用いられる。環状防水部材１７としては、Ｏリング等のいわゆる環状の防水用パッキンが用いられる。 As the annular dustproof member 16, a low repulsion material such as a so-called low repulsion elastomer or a low repulsion cushion is used. As the annular waterproof member 17, a so-called annular waterproof packing such as an O-ring is used.
　すなわち、本発明では、防水性を得るために最適な環状防水部材１７と、防塵性を得るために最適な環状防塵部材１６とを組み合わせて用いることが可能であり、防塵性と防水性をそれぞれ適切に確保することができる。 That is, in the present invention, it is possible to use a combination of the optimum annular waterproof member 17 for obtaining waterproofness and the optimum annular dust-proof member 16 for obtaining dustproof properties. It can be secured appropriately.
　また、環状防塵部材１６を形成する低反発材料は、シリコンエラストマやウレタンエラストマに比べて、圧縮するために要する力が小さく、圧縮後の反発力も小さい。このため、電池蓋１３を用いた開閉操作を容易に行うことを可能にし、防塵構造１を落下させたときに電池蓋１３が開くことが抑えられ、後述する係合フック１８によって大きな反発力に抗して係合する必要がなくなり、係合フック１８を簡素に構成することができる。また仮に、環状防塵部材１６と筐体１１との間に砂塵を挟み込んだ場合であっても、筐体１１を傷付けにくく、柔軟性が高いので、密閉状態を保ちやすくなる。なお、必要に応じて、環状防塵部材と環状防水部材は、同一材料によって形成されてもよいことは勿論である。 Also, the low repulsion material forming the annular dustproof member 16 requires less force for compression and less repulsion after compression than silicon elastomer and urethane elastomer. For this reason, it is possible to easily perform an opening / closing operation using the battery lid 13, and it is possible to prevent the battery lid 13 from opening when the dustproof structure 1 is dropped. Therefore, the engagement hook 18 can be simply configured. Even if sand dust is sandwiched between the annular dust-proof member 16 and the housing 11, the housing 11 is hardly damaged and is highly flexible, so that it is easy to maintain a sealed state. Of course, the annular dustproof member and the annular waterproofing member may be formed of the same material as necessary.
　また、本実施形態は、電池蓋１３を筐体１１に係合させるための係合構造を備えている。なお、本発明は、係合構造を備える構成に限定されるものではなく、電池蓋を筐体に固定する固定ネジ（不図示）等の固定部材が用いられてもよい。 In addition, the present embodiment includes an engagement structure for engaging the battery lid 13 with the housing 11. In addition, this invention is not limited to the structure provided with an engagement structure, Fixing members, such as a fixing screw (not shown) which fixes a battery cover to a housing | casing, may be used.
　図３Ａ及び図３Ｂに示すように、電池蓋１３には、筐体１１に係合する係合部としての係合フック１８が、環状防水部材１７の内周側に形成されている。係合フック１８は、電池蓋１３の周方向に沿った複数箇所に形成されているが、全周に亘って環状に形成されてもよい。 As shown in FIGS. 3A and 3B, the battery lid 13 is formed with an engagement hook 18 as an engagement portion that engages with the housing 11 on the inner peripheral side of the annular waterproof member 17. The engagement hooks 18 are formed at a plurality of locations along the circumferential direction of the battery lid 13, but may be formed in an annular shape over the entire circumference.
　また、筐体１１は、開口１２近傍に、電池蓋１３の係合フック１８が係合する係合凹部１９が、開口１２の周方向に沿って環状に形成されている。係合フック１８と係合凹部１９との係合状態は、係合フック１８が、環状防水部材１７の外周側から内周側に向かって弾性変形することによって解除される。 Also, the housing 11 has an engagement recess 19 that engages with the engagement hook 18 of the battery lid 13 in the vicinity of the opening 12 and is formed in an annular shape along the circumferential direction of the opening 12. The engagement state between the engagement hook 18 and the engagement recess 19 is released by elastically deforming the engagement hook 18 from the outer peripheral side to the inner peripheral side of the annular waterproof member 17.
　なお、開口１２の内面及び縁部は、筐体１１の外側から内側に亘って滑らかな面に形成されている。このため、開口１２の内面及び縁部に砂塵が付着した場合であっても、電池蓋１３を開いたときに砂塵を容易に拭き取ることが可能になっている。 In addition, the inner surface and the edge of the opening 12 are formed in a smooth surface from the outer side to the inner side of the housing 11. For this reason, even when dust adheres to the inner surface and the edge of the opening 12, it is possible to easily wipe the dust when the battery cover 13 is opened.
　以上のように構成された防塵構造１について、電池蓋１３を開閉させたときの環状防塵部材１６及び環状防水部材１７の状態を、図面を参照して説明する。 Regarding the dust-proof structure 1 configured as described above, the state of the annular dust-proof member 16 and the annular waterproof member 17 when the battery cover 13 is opened and closed will be described with reference to the drawings.
　図３Ａに示すように、防塵構造１は、電池蓋１３の係合フック１８を係合凹部１９に係合させることで、電池蓋１３が開口１２を閉じている状態が保たれる。電池蓋１３が開口１２を閉じている状態で、間隙１５内に配置された環状防塵部材１６及び環状防水部材１７は、電池蓋１３と筐体１１とによってそれぞれ圧縮されている。 As shown in FIG. 3A, the dust-proof structure 1 maintains the state in which the battery cover 13 closes the opening 12 by engaging the engagement hook 18 of the battery cover 13 with the engagement recess 19. With the battery lid 13 closing the opening 12, the annular dustproof member 16 and the annular waterproof member 17 disposed in the gap 15 are respectively compressed by the battery lid 13 and the housing 11.
　また、図３Ｂに示すように、電池蓋１３の係合フック１８と係合凹部１９との係合状態を解除することによって、開口１２から電池蓋１３を取り外し、開口１２が開かれる。 Also, as shown in FIG. 3B, by releasing the engagement state between the engagement hook 18 and the engagement recess 19 of the battery lid 13, the battery lid 13 is removed from the opening 12, and the opening 12 is opened.
　上述したように、実施形態における防塵構造１によれば、間隙１５に配置された環状防塵部材１６によって、電池蓋１３が筐体１１の開口１２を閉じている状態で筐体１１の内側に塵埃が入ることを防ぐことができる。 As described above, according to the dust-proof structure 1 in the embodiment, the annular dust-proof member 16 disposed in the gap 15 causes the dust to enter the inside of the housing 11 with the battery cover 13 closing the opening 12 of the housing 11. Can be prevented.
　加えて、防塵構造１は、筐体１１の開口１２を閉じている電池蓋１３と、開口１２との間隙１５に、環状防塵部材１６と環状防水部材１７とが空間Ｓを隔てて配置されることによって、万が一、環状防塵部材１６から筐体１１の内側に砂塵が入った場合であっても、環状防塵部材１６と環状防水部材１７との間の空間Ｓによって砂塵が留められる可能性が高く、環状防塵部材１６から入った塵埃が、環状防水部材１７に達する可能性を低減することができる。その結果、電池蓋１３の開閉時に、砂塵が開口１２の内面と環状防水部材１７との間の空間Ｓに入り込むことによって防水不良となることを防ぐことができ、防塵性及び防水性を高めることができる。 In addition, in the dustproof structure 1, the annular dustproof member 16 and the annular waterproofing member 17 are arranged with a space S in the gap 15 between the battery lid 13 that closes the opening 12 of the housing 11 and the opening 12. Therefore, even if sand dust enters the inside of the housing 11 from the annular dustproof member 16, there is a high possibility that the dust will be retained by the space S between the annular dustproof member 16 and the annular waterproof member 17. The possibility that dust entering from the annular dustproof member 16 reaches the annular waterproofing member 17 can be reduced. As a result, when the battery lid 13 is opened and closed, it is possible to prevent sand from entering the space S between the inner surface of the opening 12 and the annular waterproofing member 17, thereby preventing water from being defective, and improving dustproofness and waterproofness. Can do.
　また、電池蓋１３が開口１２を閉じている状態で、開口１２周辺の水洗いを行うことによって、環状防塵部材１６の外周側に付着した砂塵を容易に洗い流すことができる。 Also, by washing the periphery of the opening 12 with the battery lid 13 closing the opening 12, the sand adhering to the outer peripheral side of the annular dustproof member 16 can be easily washed away.
　したがって、本実施形態における防塵構造１は、海水浴や畑仕事などの、筐体１１に砂塵が多く付着するような条件下でも安心して使用することが可能であり、高い防塵性を有する携帯電話機を実現できる。 Therefore, the dust-proof structure 1 in the present embodiment can be used with peace of mind even under conditions where a lot of dust adheres to the housing 11 such as sea bathing or field work, and a mobile phone having a high dust-proof property. realizable.
　加えて、第１の実施形態における防塵構造１は、電池蓋１３を筐体１１に係合させる係合フック１８を備えているので、係合フック１８の形状を調整することによって、電池蓋１３が閉じているときに圧縮される環状防塵部材１６の圧縮量を調整することができる。防塵構造１の設計、製造の過程において、筐体１１の開口１２や電池蓋１３に反りや凹凸が発生してしまった場合であっても、環状防塵部材１６の圧縮量を調整することで、電池蓋１３によって閉じられた開口１２の密閉性を保つことができる。 In addition, since the dust-proof structure 1 in the first embodiment includes the engagement hook 18 that engages the battery lid 13 with the housing 11, the battery lid 13 can be adjusted by adjusting the shape of the engagement hook 18. It is possible to adjust the compression amount of the annular dustproof member 16 that is compressed when is closed. Even if the opening 12 of the housing 11 or the battery lid 13 is warped or uneven in the process of designing and manufacturing the dustproof structure 1, by adjusting the compression amount of the annular dustproof member 16, The hermeticity of the opening 12 closed by the battery lid 13 can be maintained.
　また、第１の実施形態における防塵構造１は、係合フック１８が、電池蓋１３の内周側のみに設けられており、後述する他の実施形態のように、電池蓋１３の外周側にも係合フックが設けられる構成と比較して、防塵構造１全体を小型化、簡素化する観点で有利である。さらに、本実施形態は、後述する他の実施形態に比べ、電池蓋１３の外縁部の構成が簡素であるので、間隙１５内に砂塵が入ったときに間隙１５から筐体１１の外側に出やすくなる。 Further, in the dust-proof structure 1 in the first embodiment, the engagement hook 18 is provided only on the inner peripheral side of the battery lid 13, and on the outer peripheral side of the battery lid 13 as in other embodiments described later. Compared with the configuration in which the engagement hook is provided, this is advantageous in terms of downsizing and simplifying the entire dustproof structure 1. Furthermore, since the configuration of the outer edge portion of the battery cover 13 is simpler than that of other embodiments described later, this embodiment exits from the gap 15 to the outside of the housing 11 when dust enters the gap 15. It becomes easy.
　次に、他の実施形態における防塵構造について、図面を参照して説明する。他の実施形態において、第１の実施形態における防塵構造１と同一の構成部材には第１の実施形態と同一の符号を付して説明を省略する。 Next, a dustproof structure in another embodiment will be described with reference to the drawings. In other embodiments, the same components as those in the dustproof structure 1 in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof is omitted.
　（第２の実施形態）
　図５Ａ、５Ｂに、第２の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図を示す。 (Second Embodiment)
5A and 5B are sectional views for explaining a state in which the battery lid having a dustproof structure in the second embodiment is opened and closed.
　第２の実施形態における防塵構造は、環状防塵部材の外周側及び内周側に係合フックがそれぞれ設けられた電池蓋を備える点が、第１の実施形態と異なる。 The dust-proof structure in the second embodiment is different from the first embodiment in that it includes a battery lid provided with engagement hooks on the outer peripheral side and the inner peripheral side of the annular dust-proof member.
　図５Ａ及び図５Ｂに示すように、第２の実施形態における防塵構造２は、開口２２を有する筐体２１と、開口２２を開閉するための電池蓋２３と、を備えている。 As shown in FIGS. 5A and 5B, the dust-proof structure 2 in the second embodiment includes a casing 21 having an opening 22 and a battery lid 23 for opening and closing the opening 22.
　電池蓋２３には、環状防塵部材１６の外周側と環状防水部材１７の内周側に、外側係合部及び内側係合部としての外側フック２８ａ及び内側フック２８ｂがそれぞれ設けられている。外側フック２８ａは、環状防塵部材１６の外周側の、電池蓋１３の周方向に沿った複数箇所に形成されている。内側フック２８ｂは、環状防水部材１７の内周側の、電池蓋１３の周方向に沿った複数箇所に形成されている。 The battery lid 23 is provided with an outer hook 28a and an inner hook 28b as an outer engagement portion and an inner engagement portion on the outer peripheral side of the annular dust-proof member 16 and the inner peripheral side of the annular waterproof member 17, respectively. The outer hooks 28 a are formed at a plurality of locations along the circumferential direction of the battery lid 13 on the outer peripheral side of the annular dust-proof member 16. The inner hooks 28 b are formed at a plurality of locations along the circumferential direction of the battery lid 13 on the inner peripheral side of the annular waterproof member 17.
　また、筐体２１には、開口２２近傍に、電池蓋２３の外側フック２８ａ及び内側フック２８ｂがそれぞれ係合される外側凹部２９ａ及び内側凹部２９ｂが形成されている。外側凹部２９ａは、開口２２の外周側に、開口２２の周方向に沿って環状に形成されている。内側凹部２９ｂは、開口２２の内周側に、開口２２の周方向に沿って環状に形成されている。 The casing 21 is formed with an outer recess 29a and an inner recess 29b in the vicinity of the opening 22 for engaging the outer hook 28a and the inner hook 28b of the battery lid 23, respectively. The outer recess 29 a is formed in an annular shape along the circumferential direction of the opening 22 on the outer peripheral side of the opening 22. The inner recess 29 b is formed in an annular shape along the circumferential direction of the opening 22 on the inner peripheral side of the opening 22.
　電池蓋２３は、外側フック２８ａ及び内側フック２８ｂを外側凹部２９ａ及び内側凹部２９ｂに係合させるときにそれぞれ弾性変形させるが必要があるので、柔軟性を有する材料や、柔軟性が発揮される寸法で形成されることが好ましい。 The battery lid 23 needs to be elastically deformed when the outer hook 28a and the inner hook 28b are engaged with the outer recess 29a and the inner recess 29b, respectively. Is preferably formed.
　柔軟性を有する材料や、柔軟性が発揮される寸法で形成されることによって、防塵構造２において、電池蓋２３を開口２２に取り付ける場合に、まず内側フック２８ｂを内側凹部２９ｂに係合させ、続いて外側フック２８ａを外側凹部２９ａに係合させて、電池蓋２３をスムーズに筐体２１に係合させることが可能になる。 When the battery lid 23 is attached to the opening 22 in the dustproof structure 2 by being formed with a material having flexibility or a dimension that exhibits flexibility, first, the inner hook 28b is engaged with the inner recess 29b, Subsequently, the outer hook 28a is engaged with the outer recess 29a, so that the battery lid 23 can be smoothly engaged with the casing 21.
　一方、筐体２１に係合された電池蓋２３を取り外す場合には、まず外側フック２８ａと外側凹部２９ａとの係合状態を解除し、続いて内側フック２８ｂと内側凹部２９ｂとの係合状態を解除する。 On the other hand, when removing the battery cover 23 engaged with the housing 21, first, the engagement state between the outer hook 28a and the outer recess 29a is released, and then the engagement state between the inner hook 28b and the inner recess 29b. Is released.
　仮に、電池蓋２３を開口２２に取り付けるときに、先に外側フック２８ａを係合させた後に内側フック２８ｂを係合させて、環状防塵部材１６から先に密閉されると、環状防塵部材１６に無理な力がかかったり、環状防塵部材１６が環状防水部材１７よりも外周側に配置されているので、環状防水部材１７から先に密閉されたときに比べて多くの空気を筐体２１内に含んでしまうことになり、筐体２１内の圧力が比較的高くなってしまったりする。このように、筐体２１の内圧が高くなることに伴って筐体２１の他の開口を閉じている保持力が比較的小さい蓋体、例えばメモリカードスロットを塞ぐカバーが開いてしまったりする不都合が生じる可能性がある。しかしながら、本実施形態では、柔軟性を有する電池蓋２３を用いることによって、先に内側フック２８ｂを係合させた後に外側フック２８ａを係合させることが可能になるので、上述した不都合を招くことを防ぐことができる。 If the battery cover 23 is attached to the opening 22, if the inner hook 28 b is engaged after the outer hook 28 a is first engaged and the annular dust-proof member 16 is sealed first, the annular dust-proof member 16 is attached. Since excessive force is applied or the annular dust-proof member 16 is disposed on the outer peripheral side of the annular waterproof member 17, a larger amount of air is contained in the housing 21 than when the annular waterproof member 17 is sealed first. As a result, the pressure in the housing 21 becomes relatively high. As described above, as the internal pressure of the housing 21 increases, a lid that closes the other openings of the housing 21 with a relatively small holding force, for example, a cover that closes the memory card slot opens. May occur. However, in the present embodiment, by using the battery cover 23 having flexibility, the outer hook 28a can be engaged after the inner hook 28b is engaged first, which causes the above-described disadvantages. Can be prevented.
　また、本実施形態において、内側フック２８ｂは、内側凹部２９ｂとの係合状態を解除するときに、筐体２１に対して、環状防塵部材１６の外周側から内周側に向かう方向に弾性変形することになる。一方、外側フック２８ａは、外側凹部２９ａとの係合状態を解除するときに、筐体２１に対して、環状防塵部材１６の内周側から外周側に向かう方向に弾性変形することになる。このように、外側フック２８ａと内側フック２８ｂは、筐体２１との係合状態を解除するときに弾性変形する向きが逆になっているので、落下時の衝撃等で電池蓋２３が開口２２から外れてしまうことを更に防ぐことができる。 Further, in the present embodiment, the inner hook 28b is elastically deformed in a direction from the outer peripheral side of the annular dust-proof member 16 toward the inner peripheral side with respect to the housing 21 when the engagement state with the inner concave portion 29b is released. Will do. On the other hand, the outer hook 28a is elastically deformed in the direction from the inner peripheral side of the annular dust-proof member 16 toward the outer peripheral side with respect to the housing 21 when the engagement state with the outer concave portion 29a is released. Thus, the outer hook 28a and the inner hook 28b are reversely elastically deformed when the engagement state with the casing 21 is released. Therefore, the battery lid 23 is opened by an impact or the like when dropped. Can be further prevented from coming off.
　本実施形態では、柔軟性を有する電池蓋２３に、環状防塵部材１６の外周側と、環状防水部材１７の内周側とに所望の間隔をあけて、外側フック２８ａと内側フック２８ｂを配置することによって、筐体２１との係合状態を解除するときに逆向きに弾性変形するように構成することが可能になっている。 In the present embodiment, the outer hook 28 a and the inner hook 28 b are arranged on the battery lid 23 having flexibility with a desired interval between the outer peripheral side of the annular dust-proof member 16 and the inner peripheral side of the annular waterproof member 17. Thus, it can be configured to elastically deform in the opposite direction when the engagement state with the housing 21 is released.
　第２の実施形態においても、環状防塵部材１６及び環状防水部材１７を備えることで、第１の実施形態と同様に、防塵性及び防水性を高めることができる。 Also in the second embodiment, by providing the annular dustproof member 16 and the annular waterproof member 17, the dustproofness and waterproofness can be improved as in the first embodiment.
　加えて、第２の実施形態における防塵構造２は、環状防塵部材１６の外周側と、環状防水部材１７の内周側に、一対の外側フック２８ａ及び内側フック２８ｂが形成された電池蓋２３を備えることによって、環状防塵部材１６を外周側と内周側に亘って均一に圧縮させることができる。これによって、環状防塵部材１６の防塵性を更に高めることができる。 In addition, the dust-proof structure 2 in the second embodiment includes a battery lid 23 in which a pair of outer hooks 28a and inner hooks 28b are formed on the outer peripheral side of the annular dust-proof member 16 and the inner peripheral side of the annular waterproof member 17. By providing, the annular dustproof member 16 can be uniformly compressed over the outer peripheral side and the inner peripheral side. Thereby, the dustproof property of the annular dustproof member 16 can be further enhanced.
　（第３の実施形態）
　図６Ａ～６Ｃに、第３の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図を示す。 (Third embodiment)
6A to 6C are cross-sectional views for explaining a state in which the battery lid having a dustproof structure in the third embodiment is opened and closed.
　第３の実施形態における防塵構造は、電池蓋が、防塵用の外側蓋と、防水用の内側蓋とを含む点が、上述した実施形態と異なっている。 The dustproof structure in the third embodiment is different from the above-described embodiment in that the battery lid includes a dustproof outer lid and a waterproof inner lid.
　図６Ａに示すように、第３の実施形態における防塵構造３は、開口２２を有する筐体２１と、開口２２を開閉するための電池蓋３３と、を備えている。 As shown in FIG. 6A, the dust-proof structure 3 according to the third embodiment includes a housing 21 having an opening 22 and a battery lid 33 for opening and closing the opening 22.
　図６Ｂ及び図６Ｃに示すように、電池蓋３３は、開口２２を閉じているときに環状防塵部材を押圧する第１の蓋体としての防塵用の外蓋３３ａと、開口２２を閉じているときに環状防水部材１７を押圧する第２の蓋体としての防水用の内蓋３３ｂとを組み合わせて構成されている。 As shown in FIGS. 6B and 6C, the battery lid 33 closes the opening 22 and a dust-proof outer lid 33 a as a first lid that presses the annular dustproof member when the opening 22 is closed. It is configured in combination with a waterproof inner lid 33b as a second lid body that sometimes presses the annular waterproof member 17.
　防塵用の外蓋３３ａは、図６Ａ及び図６Ｂに示すように、筐体２１に係合する外側フック３８ａが形成されており、外側フック３８ａの内周側に、環状防塵部材１６が取り付けられている。防水用の内蓋３３ｂは、防塵用の外蓋３３ａの内側に配される。防水用の内蓋３３ｂは、図６Ｂ及び図６Ｃに示すように、筐体２１に係合する内側フック３８ｂが形成されており、内側フック３８ｂの外周側に、環状防水部材１７が取り付けられている。 As shown in FIGS. 6A and 6B, the outer lid 33a for dust prevention is formed with an outer hook 38a that engages with the casing 21, and the annular dust-proof member 16 is attached to the inner peripheral side of the outer hook 38a. ing. The waterproof inner lid 33b is arranged inside the dustproof outer lid 33a. As shown in FIGS. 6B and 6C, the waterproof inner lid 33b is formed with an inner hook 38b that engages with the casing 21, and the annular waterproof member 17 is attached to the outer peripheral side of the inner hook 38b. Yes.
　また、防塵用の外蓋３３ａの内側には、開口面に略平行な内面を有している。同様に、防水用の内蓋３３ｂの外側には、開口面に略平行な外面を有している。防塵用の外蓋３３ａと防水用の内蓋３３ｂは、開口２２を閉じたときに内面と外面が当接する。 In addition, the inside of the outer lid 33a for dust prevention has an inner surface substantially parallel to the opening surface. Similarly, the outer surface of the waterproof inner lid 33b has an outer surface substantially parallel to the opening surface. When the opening 22 is closed, the inner surface and the outer surface of the outer cover 33a for dust prevention and the inner cover 33b for waterproof come into contact with each other.
　上述した第１及び第２の実施形態の防塵構造１、２では、電池蓋が閉じている状態のままで開口の周囲を水洗いすることによって、電池蓋や筐体に付着した砂塵が全て取り除かれることを想定している。しかしながら、例えば水洗いが不十分に行われることなどによって、砂塵が全て取り除かれないおそれもある。このような場合、開口から電池蓋を取り外したときに、電池蓋と環状防塵部材の間や、環状防塵部材と筐体の開口との間に、砂塵が僅かに残ってしまう可能性がある。 In the dust- proof structures 1 and 2 of the first and second embodiments described above, all the dust adhering to the battery lid and the casing is removed by washing the periphery of the opening with the battery lid closed. Assumes that. However, there is a possibility that not all dust is removed due to insufficient washing with water, for example. In such a case, when the battery cover is removed from the opening, there is a possibility that a slight amount of dust may remain between the battery cover and the annular dustproof member or between the annular dustproof member and the opening of the housing.
　電池蓋側に関しては、開口から取り外して電池蓋全体の水洗いを行い、乾かした後に、開口に取り付けることで、砂塵を取り除くことができる。しかしながら、筐体側に関しては、電池蓋を開口から取り外した状態で、開口の周囲の水洗いを行うことができないので、開口の周囲に付着した砂塵を慎重かつ丁寧に拭き取る必要がある。 For the battery lid side, the dust can be removed by removing it from the opening, washing the entire battery lid with water, drying and attaching it to the opening. However, with respect to the housing side, it is not possible to wash the water around the opening with the battery lid removed from the opening, so it is necessary to carefully and carefully wipe off the dust adhering to the periphery of the opening.
　そこで、第３の実施形態では、図６Ｃに示すように、上述した実施形態における電池蓋が、防塵用の外蓋３３ａと防水用の内蓋３３ｂとの２つの部品を組み合わせて構成されている。これによって、開口２２の周囲に砂塵が付着した場合には、開口２２から防塵用の外蓋３３ａを取り外し、防塵用の外蓋３３ａと、防水用の内蓋３３ｂが取り付けられた状態の筐体２１の両方を共に水洗いすることが可能にされている。このように第３の実施形態では、筐体２１側も水洗いすることによって、開口２２の周囲に付着した砂塵を容易に取り除くことができる。 Therefore, in the third embodiment, as shown in FIG. 6C, the battery cover in the above-described embodiment is configured by combining two parts, a dust-proof outer lid 33a and a waterproof inner lid 33b. . As a result, when dust adheres to the periphery of the opening 22, the outer lid 33a for dust protection is removed from the opening 22, and the outer casing 33a for dust prevention and the inner lid 33b for waterproofing are attached. Both 21 can be washed together. As described above, in the third embodiment, the dust attached to the periphery of the opening 22 can be easily removed by washing the casing 21 side with water.
　図６Ｂに示すように、電池蓋３３を閉じた状態から開いた状態にするときに、まず、防塵用の外蓋３３ａを開口２２から取り外す。次に、防塵用の外蓋３３ａと、防水用の内蓋３３ｂが取り付けられたままの筐体２１の少なくとも一方側に砂塵が付着していた場合には、防塵用の外蓋３３ａと、防水用の内蓋３３ｂが取り付けられた筐体２１をそれぞれ水洗いする。 As shown in FIG. 6B, when the battery lid 33 is changed from the closed state to the opened state, the dust-proof outer lid 33a is first removed from the opening 22. Next, when dust is adhered to at least one side of the casing 21 with the dust-proof outer lid 33a and the waterproof inner lid 33b attached, the dust-proof outer lid 33a and the waterproof lid The casings 21 to which the inner lids 33b are attached are each washed with water.
　最後に、防水用の内蓋３３ｂが取り付けられた状態の筐体２１を乾かした後に、図６Ｃに示すように、開口２２から防水用の内蓋３３ｂを取り外す。 Finally, after the casing 21 with the waterproof inner lid 33b attached is dried, the waterproof inner lid 33b is removed from the opening 22 as shown in FIG. 6C.
　なお、防水用の内蓋３３ｂを透明な材料を用いて形成すると共に、防水用の内蓋３３ｂや筐体２１の形状を工夫することで、防水用の内蓋３３ｂと開口２２との間に、取り除かれずに残留する砂塵の有無を容易に確認することもできる。これによって、開口２２の周辺に砂塵を残留させることなく、砂塵をスムーズに取り除くことができる。 The waterproof inner lid 33b is formed using a transparent material, and the shape of the waterproof inner lid 33b and the housing 21 is devised to provide a gap between the waterproof inner lid 33b and the opening 22. It is also possible to easily confirm the presence or absence of dust that remains without being removed. Thereby, the dust can be removed smoothly without leaving the dust around the opening 22.
　上述したように、第３の実施形態は、環状防塵部材１６と環状防水部材１７とが別体であるので、防塵用の外蓋３３ａと防水用の内蓋３３ｂとを組み合わせて構成される電池蓋３３を備えることが可能になっている。第３の実施形態は、防塵用の外蓋３３ａ及び防水用の内蓋３３ｂを備えることによって、電池蓋３３や筐体２１に付着した砂塵を更に確実に除去することができる。 As described above, in the third embodiment, since the annular dustproof member 16 and the annular waterproof member 17 are separate bodies, a battery configured by combining the dustproof outer lid 33a and the waterproof inner lid 33b. A lid 33 can be provided. In the third embodiment, by providing the dustproof outer lid 33a and the waterproof inner lid 33b, the dust adhered to the battery lid 33 and the housing 21 can be more reliably removed.
　また、第３の実施形態では、防塵用の外蓋３３ａに設けられた外側フック３８ａと、防水用の内蓋３３ｂに設けられた内側フック３８ｂが、筐体２１との係合状態を解除するときに弾性変形する向きが逆になっているので、第２の実施形態と同様に、落下時の衝撃等で電池蓋２３が開口２２から外れてしまうことを更に防ぐことができる。 In the third embodiment, the outer hook 38 a provided on the dust-proof outer lid 33 a and the inner hook 38 b provided on the waterproof inner lid 33 b release the engaged state with the housing 21. Since the direction of elastic deformation is sometimes reversed, similarly to the second embodiment, it is possible to further prevent the battery lid 23 from being removed from the opening 22 due to an impact at the time of dropping or the like.
　（第４の実施形態）
　図７Ａ、７Ｂに、第４の実施形態における防塵構造の電池蓋が開閉される状態を説明するための断面図を示す。図８Ａ～８Ｃに、第４の実施形態における防塵構造の電池蓋を開くときの環状防塵部材の動作を説明するための断面図を示す。図９に、第４の実施形態における防塵構造の電池蓋を閉じるときの環状防塵部材の動作を説明するための断面図を示す。 (Fourth embodiment)
7A and 7B are cross-sectional views for explaining a state in which the battery lid having a dustproof structure in the fourth embodiment is opened and closed. 8A to 8C are cross-sectional views for explaining the operation of the annular dustproof member when the battery lid having the dustproof structure in the fourth embodiment is opened. In FIG. 9, sectional drawing for demonstrating operation | movement of the cyclic | annular dustproof member when closing the battery cover of the dustproof structure in 4th Embodiment is shown.
　第１～第３の実施形態では、電池蓋が閉じられたときに、環状防塵部材が、筐体の開口の開口面に直交する方向に圧縮されている。第４の実施形態は、図７Ａ、７Ｂに示すように、環状防塵部材１４が、筐体の開口の開口面に平行な方向に対して圧縮される点が、上述した実施形態と異なっている。 In the first to third embodiments, when the battery cover is closed, the annular dustproof member is compressed in a direction perpendicular to the opening surface of the opening of the housing. As shown in FIGS. 7A and 7B, the fourth embodiment is different from the above-described embodiment in that the annular dustproof member 14 is compressed in a direction parallel to the opening surface of the opening of the housing. .
　第４の実施形態における防塵構造４は、環状防塵部材の形状が、第１の実施形態における環状防塵部材１６と異なっている。 The dustproof structure 4 in the fourth embodiment is different from the annular dustproof member 16 in the first embodiment in the shape of the annular dustproof member.
　図７Ａ及び図７Ｂに示すように、第４の実施形態における防塵構造４は、環状防水部材１７の外周側に配置された環状防塵部材４６を備えている。開口１２を閉じる電池蓋１３と開口１２との間の、筐体１１の外側から内側に向かって延びる間隙１５に、間隙１５を密封するための環状防塵部材４６及び環状防水部材１７が配置されている。環状防塵部材４６は、環状防水部材１７の外周側に、環状防水部材１７に対して空間Ｓを隔てて配置されている。そして、防塵構造４は、電池蓋１３が開口１２を閉じているときに、環状防塵部材４６と環状防水部材１７が、筐体１１と電池蓋１３とによって圧縮されるように構成されている。 7A and 7B, the dust-proof structure 4 in the fourth embodiment includes an annular dust-proof member 46 disposed on the outer peripheral side of the annular waterproof member 17. An annular dustproof member 46 and an annular waterproof member 17 for sealing the gap 15 are disposed in the gap 15 extending from the outside of the housing 11 to the inside between the battery lid 13 and the opening 12 that close the opening 12. Yes. The annular dustproof member 46 is disposed on the outer peripheral side of the annular waterproof member 17 with a space S spaced from the annular waterproof member 17. The dustproof structure 4 is configured such that the annular dustproof member 46 and the annular waterproof member 17 are compressed by the housing 11 and the battery lid 13 when the battery lid 13 closes the opening 12.
　図８Ａ及び図８Ｂに示すように、環状防塵部材４６は、電池蓋１３が開口１２を開閉するときに、開口面に直交する方向に延びる第３の部分１５ｃに摺動する摺動部４６ａを有している。摺動部４６ａは、電池蓋１３が開口１２を閉じたときに、開口面に平行な方向に対して圧縮されている。厳密には、環状防塵部材４６は、摺動部４６ａが、開口面に対して傾斜された方向に延ばされており、開口面に直交する方向に対しても僅かに圧縮されている。 As shown in FIGS. 8A and 8B, the annular dustproof member 46 includes a sliding portion 46a that slides on a third portion 15c extending in a direction orthogonal to the opening surface when the battery lid 13 opens and closes the opening 12. Have. When the battery cover 13 closes the opening 12, the sliding part 46a is compressed in a direction parallel to the opening surface. Strictly speaking, in the annular dustproof member 46, the sliding portion 46a extends in a direction inclined with respect to the opening surface, and is slightly compressed in a direction orthogonal to the opening surface.
　電池蓋１３が開口１２を閉じている状態では、係合フック１８が係合凹部１９に係合し、環状防塵部材４６及び環状防水部材１７によって生じる静摩擦力によって、電池蓋１３が筐体１１に固定される。環状防塵部材４６及び環状防水部材１７は、電池蓋１３と筐体１１によって圧縮されることによって弾性変形し、開口１２を密封した状態に保っている。ここで、環状防塵部材４６は、砂塵が筐体１１の内部へ入ることを防ぐ機能を奏するが、水などの液体に関しては、環状防水部材１７が水などの液体が筐体１１の内側へ入ることを防ぐので、環状防塵部材４６が筐体１１の内側へ液体を浸入させてもかまわない。 In a state where the battery cover 13 closes the opening 12, the engagement hook 18 is engaged with the engagement recess 19, and the battery cover 13 is attached to the housing 11 by the static frictional force generated by the annular dust-proof member 46 and the annular waterproof member 17. Fixed. The annular dustproof member 46 and the annular waterproofing member 17 are elastically deformed by being compressed by the battery lid 13 and the housing 11 and keep the opening 12 sealed. Here, the annular dustproof member 46 has a function of preventing dust from entering the inside of the housing 11, but with respect to a liquid such as water, the annular waterproofing member 17 allows the liquid such as water to enter the inside of the housing 11. In order to prevent this, the annular dust-proof member 46 may allow the liquid to enter the inside of the housing 11.
　以上のように構成された防塵構造４において、環状防塵部材４６の摺動部４６ａの動作を説明する。 In the dustproof structure 4 configured as described above, the operation of the sliding portion 46a of the annular dustproof member 46 will be described.
　電池蓋１３が閉じた状態から開いた状態に移動するときに、図８Ｂ及び図８Ｃに示すように、環状防塵部材４６の摺動部４６ａが第３の部分１５ｃに沿って摺動することで、環状防塵部材４６の外周側の間隙１５に入り込んだ砂塵を、開口１２の外側に向かってかき出す。これによって、環状防塵部材４６の外周側に付着した塵埃を容易に除去することが可能になる。 When the battery cover 13 moves from the closed state to the open state, as shown in FIGS. 8B and 8C, the sliding portion 46a of the annular dustproof member 46 slides along the third portion 15c. The sand dust that has entered the gap 15 on the outer peripheral side of the annular dustproof member 46 is scraped out toward the outside of the opening 12. This makes it possible to easily remove the dust adhering to the outer peripheral side of the annular dustproof member 46.
　そして、電池蓋１３が閉じた状態から開いた状態への移行が完了したとき、環状防水部材１７及び環状防塵部材４６にかかる圧縮力が無くなり、弾性を有する環状防水部材１７及び環状防塵部材４６は、圧縮された状態から元の形状に復帰する。 When the transition from the closed state of the battery cover 13 to the open state is completed, the compressive force applied to the annular waterproof member 17 and the annular dustproof member 46 is lost, and the elastic annular waterproof member 17 and the annular dustproof member 46 have elasticity. The original shape is restored from the compressed state.
　一方、電池蓋１３が開いた状態から閉じた状態に移行するとき、環状防塵部材４６の摺動部４６ａは、図９に示すように、筐体１１の開口１２の縁部に形成されたガイド面１２ａに沿って筐体１１の内側に案内され、摺動部４６ａが損傷することなく圧縮される。 On the other hand, when the battery cover 13 shifts from the opened state to the closed state, the sliding portion 46a of the annular dustproof member 46 is formed on the edge of the opening 12 of the housing 11 as shown in FIG. Guided along the surface 12a to the inside of the housing 11, the sliding portion 46a is compressed without being damaged.
　開口１２の縁部にガイド面１２ａが傾斜面として形成されると共に、環状防塵部材４６の摺動部４６ａの端部が円弧状に形成されることで、電池蓋１３を開くときに、摺動部４６ａによって砂塵が開口１２の外方に掃き出され、電池蓋１３を閉じるときに、開口１２の縁部に沿って摺動部４６ａが摺動することで、環状防塵部材４６をスムーズに弾性変形させて圧縮させることができる。 The guide surface 12a is formed as an inclined surface at the edge of the opening 12, and the end of the sliding portion 46a of the annular dustproof member 46 is formed in an arc shape so that it slides when the battery lid 13 is opened. The dust is swept out of the opening 12 by the portion 46a, and when the battery lid 13 is closed, the sliding portion 46a slides along the edge of the opening 12, thereby smoothly elasticating the annular dustproof member 46. It can be deformed and compressed.
　なお、電池蓋１３の周方向の全周に亘って、本実施形態のように、開口１２の開口面に平行な方向に対して圧縮するのではなく、環状防塵部材の一部が、第１の実施形態のように、開口１２の開口面に直交する方向に対して圧縮されるように構成してもよい。これにより、電池蓋を筐体に係合させる係合フックを有する係合構造等に関して、意匠及び構造設計の自由度を高めることができる。 In addition, it does not compress with respect to the direction parallel to the opening surface of the opening 12 like this embodiment over the perimeter of the circumferential direction of the battery cover 13, but a part of cyclic | annular dustproof member is 1st. As in the embodiment, it may be configured to be compressed in a direction perpendicular to the opening surface of the opening 12. Thereby, the freedom degree of design and structure design can be raised regarding the engagement structure etc. which have the engagement hook which engages a battery cover with a housing | casing.
　また、電池蓋１３においても、第３の実施形態と同様に、環状防塵部材４６の外周側に外側フックが設けられてもよく、第３の実施形態と同様の効果が得られる。 Also in the battery lid 13, as in the third embodiment, an outer hook may be provided on the outer peripheral side of the annular dustproof member 46, and the same effect as in the third embodiment is obtained.
　第４の実施形態における防塵構造４によれば、第１の実施形態で得られる効果に加え、電池蓋１３が開口１２を開くときに、間隙１５における環状防塵部材４６の外周側に入り込んだ砂塵を、環状防塵部材４６の摺動部４６ａによって開口１２の外側に容易にかき出すことができる。 According to the dust-proof structure 4 in the fourth embodiment, in addition to the effects obtained in the first embodiment, when the battery lid 13 opens the opening 12, sand dust that has entered the outer peripheral side of the annular dust-proof member 46 in the gap 15. Can be easily scraped to the outside of the opening 12 by the sliding portion 46 a of the annular dust-proof member 46.
　また、第４の実施形態では、電池蓋１３が閉じているときに、環状防塵部材４６と環状防水部材１７の両方が、開口１２の開口面に平行な方向に対して圧縮されるので、開口面に直交する方向に対する反発力が生じることが避けられている。このため、開口１２を閉じた電池蓋１３を開く方向に力が作用することが抑えられ、防塵構造４の落下時に開口１２を閉じている電池蓋１３が開くことを防ぎ、係合フック１８が大きな保持力を有する必要がないので、係合フック１８及び係合凹部１９の構造を簡素化することができる。 In the fourth embodiment, when the battery lid 13 is closed, both the annular dustproof member 46 and the annular waterproof member 17 are compressed in the direction parallel to the opening surface of the opening 12. A repulsive force in the direction perpendicular to the surface is avoided. For this reason, it is possible to prevent the force from acting in the direction of opening the battery cover 13 with the opening 12 closed, and to prevent the battery cover 13 with the opening 12 closed when the dustproof structure 4 is dropped. Since it is not necessary to have a large holding force, the structure of the engagement hook 18 and the engagement recess 19 can be simplified.
　なお、本実施形態では、筐体の開口を開閉するための電池蓋に適用されたが、電池蓋に限定されるものではなく、接続端子等が配置された他の開口に適用されてもよいことは勿論である。 In this embodiment, the present invention is applied to the battery cover for opening and closing the opening of the housing, but the present invention is not limited to the battery cover, and may be applied to other openings in which connection terminals and the like are arranged. Of course.
　本発明は、例えば、携帯電話機、携帯オーディオ機器、ＰＤＡ（Personal　Data　Assistant）、ノート型ＰＣ（パーソナルコンピュータ）、電子書籍リーダ等の、防塵、防砂性能が求められる小型の携帯電子機器全般に好適である。 INDUSTRIAL APPLICABILITY The present invention is suitable for all small portable electronic devices that require dustproof and sandproof performance, such as cellular phones, portable audio devices, PDAs (Personal Data Assistants), notebook PCs (personal computers), and electronic book readers. is there.
　以上、実施形態を参照して本発明を説明したが、本発明は上記実施形態に限定されるものでない。本発明の構成や詳細は、本発明のスコープ内で当業者が理解し得る様々な変更をすることができる。 The present invention has been described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.
　この出願は、２０１１年１１月２８日に出願された日本出願特願２０１１－２５８８０７を基礎とする優先権を主張し、その開示の全てをここに取り込む。 This application claims priority based on Japanese Patent Application No. 2011-258807 filed on November 28, 2011, the entire disclosure of which is incorporated herein.
　　１　防塵構造
　１１　筐体
　１２　開口
　１３　電池蓋
　１５　間隙
　１６　環状防塵部材
　１７　環状防水部材
　　Ｓ　空間 DESCRIPTION OF SYMBOLS 1 Dust-proof structure 11 Housing | casing 12 Opening 13 Battery cover 15 Gap | gap 16 Annular dust-proof member 17 Annular waterproof member S Space

Claims (9)

  1. 　開口を有する筐体と、
    　前記開口を開閉するための蓋体と、
    　前記開口を閉じる前記蓋体と前記開口との間の間隙に配置され、前記間隙を密封するための環状防塵部材及び環状防水部材と、を備え、
    　前記環状防塵部材は、前記環状防水部材の外周側に、前記環状防水部材に対して空間を隔てて配置され、
    　前記環状防塵部材及び前記環状防水部材は、前記蓋体が前記開口を閉じている状態で、前記筐体と前記蓋体とによって圧縮される、防塵構造。     A housing having an opening;
    A lid for opening and closing the opening;
    An annular dustproof member and an annular waterproof member disposed in a gap between the lid for closing the opening and the opening, and sealing the gap;
    The annular dust-proof member is disposed on the outer peripheral side of the annular waterproof member with a space from the annular waterproof member,
    The said annular dust-proof member and the said annular waterproof member are dust-proof structures compressed by the said housing | casing and the said cover body in the state which the said cover closed the said opening.
  2. 　前記間隙は、前記開口の開口面に沿う方向に延びる第１の部分と、前記第１の部分から前記筐体の内側に向かって前記開口面に交差する方向に延びる第２の部分と、を有し、
    　前記環状防塵部材が前記第１の部分に配され、前記環状防水部材が前記第２の部分に配されている、請求項１に記載の防塵構造。     The gap includes a first portion extending in a direction along the opening surface of the opening, and a second portion extending in a direction intersecting the opening surface from the first portion toward the inside of the housing. Have
    2. The dust-proof structure according to claim 1, wherein the annular dust-proof member is disposed in the first portion, and the annular waterproof member is disposed in the second portion.
  3. 　前記間隙は、前記第１の部分から前記筐体の外側に向かって、前記開口面に交差する方向に延びる第３の部分を有する、請求項２に記載の防塵構造。 The dust-proof structure according to claim 2, wherein the gap has a third portion extending from the first portion toward the outside of the housing in a direction intersecting the opening surface.
  4. 　前記蓋体が前記開口を閉じているときに、前記環状防塵部材が前記開口の開口面に交差する方向に圧縮され、前記環状防水部材が前記開口面に沿う方向に圧縮されている、請求項１ないし３のいずれか１項に記載の防塵構造。 The annular dustproof member is compressed in a direction intersecting the opening surface of the opening when the lid closes the opening, and the annular waterproofing member is compressed in a direction along the opening surface. The dust-proof structure according to any one of 1 to 3.
  5. 　前記蓋体が前記開口を閉じているときに、前記環状防塵部材及び前記環状防水部材が前記開口面に沿う方向にそれぞれ圧縮されている、請求項１ないし３のいずれか１項に記載の防塵構造。 The dust-proof according to any one of claims 1 to 3, wherein when the lid closes the opening, the annular dust-proof member and the annular waterproof member are respectively compressed in a direction along the opening surface. Construction.
  6. 　前記環状防塵部材は、前記蓋体に固定され、前記蓋体が前記開口を開くときに前記第３の部分に沿って摺動する摺動部を有する、請求項３に記載の防塵構造。 The dust-proof structure according to claim 3, wherein the annular dust-proof member has a sliding portion that is fixed to the lid and slides along the third portion when the lid opens the opening.
  7. 　前記蓋体は、前記開口を閉じているときに前記環状防塵部材を押圧する第１の蓋体と、前記開口を閉じているときに前記環状防水部材を押圧する第２の蓋体とを含む、請求項１ないし４のいずれか１項に記載の防塵構造。 The lid includes a first lid that presses the annular dustproof member when the opening is closed, and a second lid that presses the annular waterproof member when the opening is closed. The dust-proof structure according to any one of claims 1 to 4.
  8. 　前記蓋体は、前記環状防塵部材の外周側に形成されて前記筐体に係合する外側係合部と、前記環状防水部材の内周側に形成されて前記筐体に係合する内側係合部とを有する、請求項１ないし７のいずれか１項に記載の防塵構造。 The lid body is formed on the outer peripheral side of the annular dust-proof member and engages with the casing, and the inner engagement member is formed on the inner peripheral side of the annular waterproof member and engages with the casing. The dustproof structure according to any one of claims 1 to 7, comprising a joint portion.
  9. 　請求項１ないし８のいずれか１項に記載の防塵構造を備える電子機器。 Electronic equipment comprising the dustproof structure according to any one of claims 1 to 8.
PCT/JP2012/076022 2011-11-28 2012-10-05 Dustproofing structure and electronic device WO2013080669A1 (en)

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JP2011258807 2011-11-28
JP2011-258807 2011-11-28

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2911032A1 (en) * 2014-02-21 2015-08-26 Samsung Electronics Co., Ltd Electronic device and protective cover therefor
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Publication number Priority date Publication date Assignee Title
EP2911032A1 (en) * 2014-02-21 2015-08-26 Samsung Electronics Co., Ltd Electronic device and protective cover therefor
KR20150099326A (en) * 2014-02-21 2015-08-31 삼성전자주식회사 Electronic device and protection cover thereof
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KR102246134B1 (en) * 2014-02-21 2021-04-29 삼성전자주식회사 Electronic device and protection cover thereof
CN108243588A (en) * 2018-01-17 2018-07-03 山东超越数控电子股份有限公司 A kind of conductive contact joint treatment structure
CN113336410A (en) * 2021-05-18 2021-09-03 成都环能德美环保装备制造有限公司 Plane embedded type annular structure and manufacturing process thereof
CN113336410B (en) * 2021-05-18 2022-11-04 成都环能德美环保装备制造有限公司 Plane embedded type annular structure and manufacturing process thereof

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