JP5995606B2 - Gasket having multiple contacts and portable terminal equipped with the same - Google Patents

Description

  The present invention relates to a gasket having a plurality of contacts and a portable terminal having the gasket.

  Conventionally, for example, as disclosed in Patent Document 1, an elastic member formed into a shape having a pair of surfaces respectively opposed to one surface of the case body and the facing surface of the electronic component connecting member by using an elastic material; And a conductive flexible portion formed of a flexible material and provided over a pair of surfaces of the elastic member, and a portion of the conductive flexible portion facing one surface of the case body or facing one surface of the electronic component connecting member There is known a gasket that is provided in a state of integrally protruding outward from one edge of a portion to be attached and attached to the facing surface of the case body or the electronic component connecting member by an attaching means. Yes.

JP 2007-157342 A

  However, in the conventional gasket, when there are a plurality of contacts on the substrate, a plurality of gaskets must be provided, and the mounting work is troublesome. Moreover, the mounting location of the mounting protrusion of each gasket must be provided on the substrate side, and space saving cannot be achieved.

  The present invention has been made in view of such a point, and an object of the present invention is to make it possible to easily attach a gasket having a plurality of contacts in a narrow area.

  In order to achieve the above object, in the present invention, one cushion material is covered with a plurality of conductive films.

Specifically, in the first invention, on the premise of a gasket having a plurality of contacts,
The gasket is
Cushion material,
A plurality of conductive films covering the outer periphery of the cushion material at intervals, and
And an adhesive member provided in a region without the conductive film between the plurality of conductive films.

  According to said structure, since the adhesive member is provided in the part which is not covered with the conduction | electrical_connection film, the whole thickness is suppressed. In addition, since a plurality of contacts can be conducted with one gasket, the gasket can be easily attached and the number of adhesive members can be reduced.

In the second invention, on the premise of a gasket having a plurality of contacts,
Cushion material,
A plurality of conductive films covering the outer periphery of the cushion material at intervals, and
An adhesive member provided between the plurality of conductive films,
The adhesive member parts component provided is lower relative to the adhesive surface than the portion covered by the conductive film.

  According to the above configuration, the double-sided tape is lower in the thickness direction than the conductive film, so if you press down while deforming the cushion material when sticking the double-sided tape to the insulation buffer band, it will return The gasket is adhered to the substrate while the force is applied. For this reason, the conductive film and the plurality of contacts of the substrate are reliably connected.

A portable terminal of a third invention is a gasket having a plurality of contacts of the first or second invention,
It has a substrate on which a plurality of contacts provided at intervals corresponding to the plurality of conductive films and an insulating buffer band to which the adhesive member between the plurality of contacts is bonded.

  According to said structure, in order to affix a gasket, since the area | region which occupies for a board | substrate is restrict | limited to a some contact and the insulation buffer zone between them, the magnitude | size of a board | substrate can be made small.

As described above, according to the present invention, covered with a plurality of conductive films at a respective spacing periphery of the cushion material, by providing the adhesion member in a region with no conductor through the film between the plurality of conductive films , Gasket with multiple contacts can be easily attached in a narrow area.

It is a perspective view which shows a gasket and a flexible substrate. It is the perspective view which looked at the mobile telephone concerning the embodiment of the present invention from the front side. It is the disassembled perspective view which looked at the 1st case from the front side. It is the disassembled perspective view which looked at the 1st case from the back side. It is the VV line expanded sectional view of FIG. It is a rear view which shows a flexible substrate, a liquid crystal substrate, and its periphery. It is a perspective view which expands and shows the liquid-crystal board | substrate with which the gasket was affixed, and its periphery. The gasket is shown enlarged, (a) is a perspective view, (b) is a sectional view taken along the line VIIIb-VIIIb of (a), and (c) is an enlarged bottom view of the VIIIc portion.

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

  FIG. 2 is a perspective view of a mobile phone as a mobile terminal according to the embodiment of the present invention as viewed from the front side. 3 is an exploded perspective view of the first casing as viewed from the front side, and FIG. 4 is an exploded perspective view of the first casing as viewed from the back side. In the cellular phone 1, a first housing 3 having a display unit 2 and a second housing 5 having an operation unit (not shown) such as operation buttons can be folded and opened with a hinge 6 as a center. It is connected to. Although not shown in detail, the second housing 5 accommodates a battery, a main board that controls the entire mobile phone 1, and the like.

  The 1st housing | casing 3 has the front side cabinet 3a which accommodates the display part 2, and the back cover 3b which covers this from the back. A liquid crystal substrate 7 for controlling the display unit 2 and the like is accommodated on the back side of the front cabinet 3a. The liquid crystal substrate 7 and the main substrate are electrically connected by a flexible substrate 8 that passes through the hinge portion 6. The flexible substrate 8 is held in the front cabinet 3a by a liquid crystal holder 9 made of, for example, a resin molded product. Note that a sub-display 10 is provided below the liquid crystal holder 9 in FIG. 4 so that the user can see the display from the window portion 11 made of a transparent acrylic plate or the like of the back cover 3b. Yes.

  FIG. 1 is a perspective view showing a gasket 20 and a flexible substrate 8 according to an embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view taken along line VV in FIG. 2, and FIG. 6 is a rear view showing the flexible substrate 8, the liquid crystal substrate 7, and the periphery thereof. As shown in FIGS. 1 and 4 to 6, the flexible substrate 8 is electrically connected to a connection portion 7 a of the liquid crystal substrate 7 by a contact connector 12. Thereby, a control signal or the like is transmitted from the main substrate to the display unit 2, the sub display 10 and the like via the flexible substrate 8. In addition, the flexible substrate 8 needs to be grounded (grounded) in the mobile phone 1 for noise prevention or the like. As shown in FIG. 1, the flexible substrate 8 has flexible side first and second contacts 13 and 14 for the purpose of grounding and the like. Between these two flexible side first and second contacts 13, 14, a flexible side insulating buffer band 15 that does not conduct electricity is provided. The flexible substrate 8 includes waterproof packings 8a and 8b made of an elastomer or the like for hermetically sandwiching the first housing 3 and the second housing 5 respectively.

  FIG. 7 is an enlarged perspective view showing the liquid crystal substrate 7 to which the gasket 20 is attached and the periphery thereof. Corresponding to the flexible side first and second contacts 13, 14, substrate side first and second contacts 17, 18 are provided on the liquid crystal substrate 7 side. Between the substrate side first and second contacts 17, 18, a substrate side insulating buffer band 19 that does not conduct electricity is formed.

  FIG. 8 is an enlarged view of the gasket 20, in which (a) is a perspective view, (b) is a sectional view taken along the line VIIIb-VIIIb of (a), and (c) is an enlarged bottom view of the VIIIc portion. The gasket 20 has a cushion material 21 made of a highly functional urethane foam or the like, for example, a 0.8 mm rectangular plate. The outer periphery of the cushion material 21 is covered with two conductive films 22 at intervals. The conductive film 22 includes, for example, a 0.035 mm EVA resin laminate 22a and a metal film 22b such as an aluminum foil covering the surface. The conductive film 22 covers the left and right ends of the cushion material 21 in a U shape in plan view.

  A double-sided tape 23 as an adhesive member is affixed between the pair of conductive films 22. As this double-sided tape 23, for example, a very thin and high adhesive strength of 0.03 mm is used. As shown in FIG. 8B, the double-sided tape 23 is lower than the conductive film 22 in the thickness direction. For this reason, the gasket 20 is adhered to the liquid crystal substrate 7 with a force to return to the original state after the cushion material 21 is pressed while being deformed when the double-sided tape 23 is attached to the substrate-side insulating buffer band 19. Yes. Thus, the conductive film 22 is surely connected to the substrate side first and second contacts 17 and 18.

  The flexible substrate 8 is held at a fixed position in the flexible container 9a provided in the liquid crystal holder 9 shown in FIG. 3, and the conductive film 22 is pressed against the flexible first and second contacts 13 and 14, respectively. doing. FIG. 1 shows the positional relationship when the contact is made.

  Thus, in this embodiment, since the double-sided tape 23 is provided in the part which is not covered with the conduction | electrical_connection film 22, the whole thickness is suppressed.

  In addition, since one gasket 20 can connect two contact points, the gasket 20 can be easily attached and the number of double-sided tapes 23 can be reduced.

  Furthermore, since the area occupied by the liquid crystal substrate 7 is limited to the substrate-side first and second contacts 17 and 18 and the substrate-side insulating buffer band 19 therebetween, the size of the liquid crystal substrate 7 can be reduced. .

  Therefore, according to this embodiment, the gasket 20 having a plurality of contacts can be easily attached in a narrow area.

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

  That is, in the above embodiment, the plurality of contacts are two contacts, but may be three or more. In the case of three or more, the conductive films 22 other than both sides may be wound in the width direction, and a double-sided tape 23 may be attached between each pair of conductive films 22.

  In the above embodiment, the double-sided tape 23 is affixed only to the liquid crystal substrate 7 side in relation to operations such as assembly, repair, and recycling, but it may also be affixed to the flexible substrate 8 side. Conversely, it may be attached only to the flexible substrate 8.

  In the said embodiment, although the adhesive member is the double-sided tape 23, it is good also as what provided the adhesive agent by printing.

  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.

  As described above, the present invention is useful for a portable terminal such as a mobile phone or a gasket having a plurality of contacts for conducting to a substrate.

1 Mobile phone (mobile terminal)
2 display section
3 First housing
3a Front cabinet
3b Back cover
5 Second housing
6 Hinge part
7 Liquid crystal substrate
7a Connection part
8 Flexible substrate
8a, 8b Waterproof packing
9 Liquid crystal holder
9a Flexible container
10 Sub display
11 Window
12 Contact connector
13, 14 Flexible side first and second contacts
15 Flexible insulation buffer zone
17, 18 Substrate side first and second contacts
19 Substrate side insulation buffer band
20 Gasket
21 Cushion material
22 Conductive film
22a Laminate material
22b metal film
23 Double-sided tape (adhesive material)

Claims (3)

In gaskets with multiple contacts,
Cushion material,
A plurality of conductive films covering the outer periphery of the cushion material at intervals, and
A gasket having a plurality of contacts, comprising: an adhesive member provided in a region without the conductive film between the plurality of conductive films. In gaskets with multiple contacts,
Cushion material,
A plurality of conductive films covering the outer periphery of the cushion material at intervals, and
An adhesive member provided between the plurality of conductive films,
The adhesive member parts component provided is a gasket having a plurality contacts, characterized in that it is lower than the adhesive surface than the portion covered by the conductive film. A portable terminal comprising a gasket having a plurality of contacts according to claim 1 or 2,
A portable terminal comprising a substrate on which a plurality of contacts provided at intervals corresponding to the plurality of conductive films and an insulating buffer band to which the adhesive member between the plurality of contacts is bonded are formed. .

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