JP2013090117A - Electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain compact electronic equipment configured to reduce the number of components and assembly time by allowing a seal member integrally formed on a second cabinet to surely seal a plurality of locations on a front side and a back side.SOLUTION: A back side of a front side cabinet 3 (first cabinet) is covered with a back side cabinet 4 (second cabinet), and a back side of the back side cabinet 4 is covered with a battery lid 5 (third cabinet). A seal member 10 is integrally disposed on the back side cabinet 4. The seal member 10 includes: a front side seal part 11 that seals between the front side cabinet 3 and the back side cabinet 4 by contacting with the front side cabinet 3 via the front side of the front side seal part 11; and a back side seal part 12 that seals between the battery lid 5 and the back side cabinet 4 by contacting with the battery lid 5 via the back side of the back side seal part 12.

Description

  The present invention relates to an electronic device having a waterproof function for sealing between a plurality of cabinets.

  2. Description of the Related Art Conventionally, in an electronic device casing composed of a first and second casing that can be coupled and separated, a waterproof packing is fitted into a groove provided on the periphery of the first casing, so that the first casing and the second casing are fitted. Waterproofing between the body is performed (for example, refer patent document 1).

  Moreover, like patent document 2, while being provided between this apparatus main body, the rechargeable battery comprised so that attachment or detachment to this apparatus main body, this rechargeable battery and an apparatus main body, it is substantially the same shape as the outer periphery of a rechargeable battery. 2. Description of the Related Art A portable electronic device is known that includes an annular portion and an elastic waterproof member that includes an annular portion and a locking tongue piece integrally formed with the annular portion at a predetermined interval. In this portable electronic device, a dedicated waterproof member is required for the battery lid that covers the rechargeable battery.

JP-A-8-130382 Japanese Patent Laid-Open No. 9-4715

  However, in a structure in which a groove is provided in the peripheral edge of the housing as in Patent Document 1 and a waterproof packing is fitted in the groove, a width for providing the groove is required, and the size of the electronic device is increased. Moreover, it takes time to fit the waterproof packing in the groove without twisting.

  Furthermore, not only the first housing and the second housing as in Patent Document 1, but also an electronic device having a battery lid as in Patent Document 2, the first housing and the second housing are disposed between the first housing and the second housing. It is necessary to provide separate sealing members between the two housings and the battery lid, which increases the number of parts and the number of assembly steps.

  The present invention has been made in view of such points, and the object of the present invention is to reduce the number of parts and the number of assembling steps by ensuring that a plurality of places can be sealed with a single sealing member formed integrally. However, it is intended to obtain a compact electronic device.

  In order to achieve the above object, in the present invention, a sealing member capable of sealing the front side and the back side of the second cabinet is formed integrally with the second cabinet.

Specifically, the electronic device of the first invention is:
A first cabinet;
A second cabinet covering the back side of the first cabinet;
A third cabinet covering the back side of the second cabinet;
A front-side sealing portion that is provided integrally with the second cabinet, contacts the first cabinet on the front side of the second cabinet, and seals between the first cabinet and the second cabinet; and the front side A sealing member having a back side sealing portion that is continuous with the sealing portion and contacts the third cabinet on the back side of the second cabinet and seals between the third cabinet and the second cabinet; Yes.

  According to said structure, since the sealing member is integrally provided in the 2nd cabinet, while saving space compared with the case where conventional waterproof packing is inserted in a groove | channel, the assembly of a troublesome sealing member is carried out. It becomes unnecessary. In addition, even a sealing member with a complicated shape can be molded, and the waterproof function is remarkably improved, and the front side seal part and the back side seal part are integrally molded continuously, so the number of parts is reduced and the seal The effect of reducing the labor required for assembling the parts is doubled.

In the second invention, in the first invention,
The front-side seal portion and the back-side seal portion are continuously formed by a continuous forming through hole provided in the second cabinet.

  According to said structure, since the sealing member fuse | melted through the through-hole for continuous formation can be filled from the one side to the other side, integral molding becomes very easy.

In the third invention, in the first or second invention,
A substrate is mounted on the front side of the second cabinet,
The through hole for continuous formation includes a through hole for electrically connecting an attachment component attached to the back side of the second cabinet and the substrate.

  According to said structure, even when attaching the attachment component for connecting to a board | substrate to the back side of a 2nd cabinet, since the periphery of the through-hole for the connection can be sealed with one waterproof member, the number of parts reduces. At the same time, the waterproof effect is improved.

In the fourth invention, in the third invention,
The mounting part is an antenna, and the contact of the antenna is connected to the substrate through the through hole,
The seal member covers the entire periphery of the through hole and seals between the attachment component and the periphery of the through hole.

  According to the above configuration, the antenna needs to be provided on the outside of the housing as much as possible. Even when the antenna must be separated from the substrate, the seal member covers the entire periphery of the through hole. The gap is easily and reliably sealed.

In a fifth invention, in any one of the first to fourth inventions,
The front-side seal portion covers a periphery of the insertion hole through which a fastening member that fastens the first cabinet and the second cabinet is inserted, and prevents water from flowing into the first cabinet through the insertion hole. ing.

  According to the above configuration, the peripheral edge of the insertion hole on the opposite side of the head that cannot be waterproofed even if an O-ring is attached to the head of the fastening member as in the prior art can be covered with the seal member. A ring is also unnecessary.

In a sixth invention, in any one of the first to fifth inventions,
The first cabinet is a front cabinet in which a display unit is mounted on the front side and a rechargeable battery is mounted on the back side,
The second cabinet is a back-side cabinet in which an opening for a rechargeable battery surrounding the rechargeable battery is formed while covering a back surface of the front-side cabinet.
The third cabinet is a battery lid that covers the rechargeable battery exposed from the rechargeable battery opening,
The said back side seal part has covered the said opening periphery for rechargeable batteries.

  According to said structure, with one sealing member, not only between the front side cabinet and back side cabinet which are not normally decomposed | disassembled, but the opening for rechargeable batteries required in order to accommodate a thick rechargeable battery, The battery lid can be easily and reliably sealed.

  As described above, according to the present invention, the number of parts and the number of assembly steps can be reduced by reliably sealing a plurality of locations on the front side and the back side with a single sealing member formed integrally with the second cabinet. However, a compact electronic device can be obtained.

It is the II sectional view taken on the line of FIG. 8 concerning the portable telephone of this embodiment. It is the perspective view which looked at the mobile telephone from the front side. It is the perspective view which looked at the mobile telephone from the back side. It is the perspective view which decomposed | disassembled the battery cover and antenna component of a mobile telephone. It is the perspective view which looked at the back side cabinet from the front side. It is the perspective view which looked at the back side cabinet from the back side. It is a perspective view which shows the front side of a cover member. It is a front view of a mobile phone. It is the IX-IX line expanded sectional view of FIG. FIG. 9 is an enlarged sectional view taken along line XX in FIG. 8. It is the expansion perspective view which looked at the antenna components from the front side.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  2 to 4 show a mobile phone 1 as an electronic apparatus according to an embodiment of the present invention. The mobile phone 1 is provided with a display unit 2 having a touch panel on the surface side. The cellular phone 1 includes a front side cabinet 3 as a first cabinet that incorporates a display unit 2 on the front side, a back side cabinet 4 as a second cabinet that covers the back side of the front side cabinet 3, and the back side cabinet. 4 is provided with a battery lid 5 as a third cabinet that covers the back side of 4. The front side cabinet 3, the back side cabinet 4 and the battery lid 5 are each made of a resin molded product such as a polyamide resin containing glass reinforcing fibers.

  As shown in FIG. 4, when the battery cover 5 is removed, the rechargeable battery 6 and the antenna 7 as an attachment member are exposed on the back side of the back side cabinet 4. As shown in FIG. 2, three operation buttons 8 are arranged at the lower end of the mobile phone 1, and the periphery thereof is covered with a decorative plate 9.

  And the sealing member 10 is provided in the back side cabinet 4 integrally. As shown by hatching in FIG. 5, the sealing member 10 has a rear surface so as to contact the front cabinet 3 on the front side of the rear cabinet 4 and seal between the front cabinet 3 and the rear cabinet 4. A front-side seal portion 11 is integrally formed along the front-side periphery of the side cabinet 4. Moreover, as shown by hatching in FIG. 6, the sealing member 10 is a substantially rectangular plate on the back side peripheral edge of the rechargeable battery opening 4 a for accommodating the rechargeable battery 6 of the back side cabinet 4 and on the front side of the battery cover 5. A back-side seal portion 12 is provided that contacts the outer peripheral surface of a frame portion 5a (shown in FIG. 7) that stands upright and seals between the battery lid 5 and the back-side cabinet 4.

  Although not shown in detail, this seal member 10 is made of, for example, melted silicon or the like from a gate 13 formed of a plurality of circular through holes provided on the back side by fitting the back side cabinet 4 after molding into an injection mold. The front side seal part 11 and the back side seal part 12 are integrally formed continuously at a time by filling a material having high fluidity and good adhesion to the back side cabinet 4. In order to improve the adhesiveness between the seal member 10 and the back side cabinet 4, a primary may be applied to the bonded portion of the seal member 10 in the back side cabinet 4.

  In order to ensure this integral molding, as shown in FIGS. 1, 5, and 9, a plurality of continuous forming through holes 14 such as a rectangular shape are formed through the back side cabinet 4. Since the molten material such as silicon injected from the front side through the gate 13 flows through the continuous formation through hole 14 to the front side, the front side seal portion 11 and the back side seal portion 12 are continuous. To be formed.

  As shown in FIGS. 9 and 10, a substrate 15 is mounted on the front side of the back side cabinet 4 (strictly speaking, the back side of the front side cabinet 3). On the other hand, as shown in FIG. 11, the antenna 7 has a metal receiving portion 7b formed on the outer periphery of the resin molded product body 7a, and a pair of contacts for electrical connection to the substrate 15 on the front side thereof. 7c is provided.

  The continuous formation through hole 14 shown in FIGS. 9 and 10 serves as a through hole for electrically connecting the antenna 7 and the substrate 15. The entire periphery including the front side and the back side of the through hole 14 for continuous formation is covered with the seal member 10.

  As shown in FIG. 10, the front-side seal portion 11 covers the front side periphery of the insertion hole 17 through which the screw 16 as a fastening member for fastening the front-side cabinet 3 and the rear-side cabinet 4 is inserted, and the insertion hole 17. This prevents water from flowing into the front cabinet 3 side.

  As described above, since the sealing member 10 is provided integrally with the back side cabinet 4, space saving can be achieved as compared with the case where a conventional waterproof packing is fitted in the groove, and the troublesome assembly of the sealing member 10 is performed. Is no longer necessary. Further, not only the annular portion along the outer periphery but also a sealing member 10 having a complicated shape such as the periphery of the through hole can be molded, and the waterproof function is greatly improved, and the front side seal portion 11 and the back side seal portion 12 are continuous. Thus, since the number of parts is reduced, the effect of reducing the labor for assembling the seal member 10 is doubled.

  Further, when the molten seal member 10 is injected through the gate 13, the melted seal member 10 through the continuous forming through hole 14 can be filled from the back side to the front side, so that integral molding is extremely easy.

  Further, even when the antenna 7 needs to be provided as much as possible outside the backside cabinet 3 and must be separated from the substrate 15, the seal member 10 covers the entire periphery of the continuous through-hole 14 for connection. Therefore, the space between the antenna 7 and the periphery of the through hole 14 for continuous formation is easily and reliably sealed.

  Further, not only between the front-side cabinet 3 and the back-side cabinet 4 that are not normally disassembled by one seal member 10, but also a rechargeable battery opening 4a necessary for accommodating the thick rechargeable battery 6. By sealing the peripheral edge, the space between the battery lid 5 and the back side cabinet 4 can be easily and reliably sealed.

  Furthermore, since the periphery of the insertion hole 17 on the opposite side (front side) of the head that cannot be waterproofed even if an O-ring is attached to the head of the screw 16 as in the prior art can be covered with the seal member 10, it can be reliably waterproofed. , O-ring is also unnecessary.

  Therefore, according to the mobile phone 1 according to the present embodiment, the number of parts and the assembly can be assured so that the sealing on the front side and the back side can be reliably performed by the single sealing member 10 formed integrally with the back side cabinet 4. A compact mobile phone 1 can be obtained while reducing the number of steps.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the above embodiment, the waterproof function by the seal member 10 has been mainly described, but the seal member 10 made of silicon or the like exhibits not only a waterproof function but also dustproof and vibration proof effects.

  In the above embodiment, the first to third cabinets are cabinets constituting the casing of the mobile phone 1, but PHS (Personal Handy-phone System), PDA (Personal Digital Assistant), smartphone, personal computer, mobile tool, electronic Not only portable terminals such as dictionaries, calculators, and game machines, but also cabinets constituting electronic devices capable of exhibiting waterproof, dustproof, or antivibration effects such as desktop personal computers and AV devices.

  In the above embodiment, the mounting member is the antenna 7, but is not particularly limited thereto, and is not particularly limited as long as it is a component that passes through a through-hole penetrating the back side cabinet 3.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

1 Mobile phone (electronic equipment)
2 Display unit 3 Front cabinet (first cabinet)
4 Back cabinet (second cabinet)
4a Rechargeable battery opening 5 Battery cover (third cabinet)
5a Frame part 6 Rechargeable battery 7 Antenna (mounting parts)
7a Contact 10 Seal member 11 Front side seal part 12 Back side seal part 13 Gate 14 Through hole for continuous formation 15 Substrate 16 Screw 17 Insertion hole

Claims (6)

A first cabinet;
A second cabinet covering the back side of the first cabinet;
A third cabinet covering the back side of the second cabinet;
A front-side sealing portion that is provided integrally with the second cabinet, contacts the first cabinet on the front side of the second cabinet, and seals between the first cabinet and the second cabinet; and the front side A sealing member having a back side sealing portion that is continuous with the sealing portion and contacts the third cabinet on the back side of the second cabinet and seals between the third cabinet and the second cabinet; An electronic device characterized by The electronic device according to claim 1,
The electronic device characterized in that the front side seal part and the back side seal part are continuously formed by through holes for continuous formation provided in the second cabinet. The electronic device according to claim 1 or 2,
A substrate is mounted on the front side of the second cabinet,
The said continuous formation through-hole includes the through-hole for electrically connecting the attachment component attached to the back side of the said 2nd cabinet, and the said board | substrate, The electronic device characterized by the above-mentioned. The electronic device according to claim 3,
The mounting part is an antenna, and the contact of the antenna is connected to the substrate through the through hole,
The said sealing member covers the whole said through-hole periphery, and seals between the said attachment components and the said through-hole periphery, The electronic device characterized by the above-mentioned. The electronic device according to any one of claims 1 to 4,
The front-side seal portion covers a periphery of the insertion hole through which a fastening member that fastens the first cabinet and the second cabinet is inserted, and prevents water from flowing into the first cabinet through the insertion hole. An electronic device characterized by that. The electronic device according to any one of claims 1 to 5,
The first cabinet is a front cabinet in which a display unit is mounted on the front side and a rechargeable battery is mounted on the back side,
The second cabinet is a back-side cabinet in which an opening for a rechargeable battery surrounding the rechargeable battery is formed while covering a back surface of the front-side cabinet.
The third cabinet is a battery lid that covers the rechargeable battery exposed from the rechargeable battery opening,
The said back side seal | sticker part has covered the said opening periphery for rechargeable batteries, The electronic device characterized by the above-mentioned.

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