JP2523881Y2 - Portable communication equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable communication device such as a cordless telephone handset and a portable telephone, and more particularly to a portable communication device having a rechargeable battery as a power source.

[0002]

2. Description of the Related Art For example, in a cordless telephone, as shown in FIG. 3, a slave unit 2 is usually set on a charger 1 in a standby state and placed in a charged state during standby. It is often the case that the portable device 2 is detached from the charger 1 and carried to the place, and placed next to the device. When the portable device 2 is placed in a place where water is used, such as a kitchen or a washroom, the portable device 1
However, there is a possibility that the battery may get wet, get into the inside of the cabinet through the insertion portion of the charging terminal, and cause a failure or the like.

Therefore, in the prior art, as shown in FIG.
A waterproof gasket 6 is fitted into the through hole 5 from the outside thereof. Thereafter, the charging terminal 4 is inserted into the through hole 5, and a screw portion at the tip is screwed into a terminal nut 7 with a terminal to be fastened. By doing so, the portion through which the charging terminal 4 is inserted is waterproofed, and the charging terminal 4 is electrically connected to the circuit portion via the lead wire 8 soldered to the terminal of the plate nut 7.

[0004]

However, in the conventional structure, a special packing is required for waterproofing, and a lead wire and the like are required for electrical connection between the charging terminal and the circuit portion. Since the number of parts is large, not only the workability at the time of assembling is deteriorated, but also the cost is disadvantageous.

[0005]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above-mentioned problems, and the invention according to claim 1 has a substrate having a plurality of fixed contacts and a key top having a movable contact. And a key switch device composed of a rubber contact or the like formed with a plurality of mobile phones, a built-in rechargeable battery as a power source, and a charging terminal for charging the rechargeable battery provided with one end thereof exposed to the outside. In the device, the charging terminal insertion portion of the cabinet is watertightly closed by the rubber contact.

According to a second aspect of the present invention, there is provided a portable communication device according to the first aspect, wherein one end of the charging terminal and the substrate are screwed to a boss of the cabinet to form a circuit between the charging terminal and the substrate. And a rubber contact is sandwiched between the charging terminal and the cabinet, and a projection is formed on the charging terminal crimping surface of the rubber contact.

[0007]

According to the structure of the first aspect, the charging terminal insertion portion of the cabinet can be waterproofed by using the rubber contact of the key switch device, and the exclusive packing is omitted to reduce the number of parts. Can be planned.

According to the second aspect of the present invention, the charging terminal and the circuit section can be electrically connected without using a lead wire, and the number of parts can be reduced, so that the workability at the time of assembly can be improved. It is possible to provide an advantage in terms of cost and cost.

[0009]

1 and 2, an embodiment of the present invention will be described in detail with reference to FIG.

The cabinet 3 of the slave unit 2 has, for example, a slit-shaped insertion hole 9 formed at the bottom thereof, and a rectangular rib 10 surrounding the insertion hole 9 on its inner surface and a boss 11 at a position near the rib. The rib 10 has a portion on the boss 11 side that is one step lower than the other portions.

The rubber contact 12 is formed by integrally forming a plurality of key tops having movable contact portions, and comprises a conventionally well-known key switch device together with a substrate 13 having a plurality of fixed contact portions. The key switch device is built in the cabinet 3 of the slave unit 2, and each key top portion is arranged to face the dial key 14 (see FIG. 3).

A part of the rubber contact 12 is extended to form a waterproof packing portion 15. The waterproof packing portion 15 is fitted into the upper end of the rib 10 of the cabinet 3 with a groove 16 on the back surface. Also, the waterproof packing part 15
A through hole 17 is formed facing the insertion hole 9 of the cabinet 3, and a step 18 is provided by lowering the portion on the boss 11 side from the through hole 17 on the upper surface by one step, and a plurality of steps are provided on the surface of the step 18. The projections 19 are formed.

The charging terminal 20 has an L-shape, and one end 20a is screwed to the boss 11 together with the substrate 13 by a screw 2.
1 and the other end 20b is projected out of the cabinet 3 through the through hole 17 and the insertion hole 9 of the rubber contact 12. Thus, one end of the charging terminal 20 is in contact with the connection end of the substrate 13 in the attached state, and is electrically connected to the charging circuit on the substrate 5.

In the above configuration, the charging terminal 20 is attached according to the following procedure. First, the waterproof packing part 15 of the rubber contact 12 is fitted to the upper end of the rib 10 of the cabinet 3 with the groove 16 on the back surface, and then one end 20 b of the charging terminal 20 is inserted through the through hole 17 through the insertion hole 9.
And the other end 20b side is fitted into the step portion 18 of the waterproof packing portion 15 and its tip is located on the boss portion 11. After a while, the substrate 13
Is overlaid on the charging terminal 20 and fastened to the boss portion 11 together with the charging terminal 20 with the screw 21 to complete the process.

In this state, the space between the charging terminal 20 and the rib 10 of the cabinet 3 is closed in a water-tight manner by the waterproof packing part 15, so that the charging terminal 20 insertion portion in the cabinet 3 is waterproofed. Further, the charging terminal 20 is in direct contact with the substrate 13 and is electrically connected to the circuit portion. Further, even if the screw 21 is slightly loosened, the contact pressure is prevented from being reduced by the protrusion 19. , Become stable.

[0016]

As described above, according to the first aspect of the present invention, in a portable communication device such as a cordless telephone handset, waterproofing of a charging terminal insertion portion in a cabinet is performed using a rubber contact of a key switch device. And a dedicated waterproof packing as in the related art can be omitted, and the number of parts can be reduced.

According to the second aspect of the present invention, it is possible to omit a lead wire for connecting the charging terminal and the circuit section, to reduce the number of parts, and to improve the workability during assembly. In addition, it is possible to provide a cost-effective product.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a main part of a portable communication device according to an embodiment of the present invention.

FIG. 2 is an exploded configuration view of the main part.

FIG. 3 is an external perspective view showing a standby state of a slave unit of the cordless telephone.

FIG. 4 is a sectional view showing the structure of a conventional charging terminal insertion portion.

[Explanation of symbols]

 2 Cordless Telephone Handset 3 Cabinet 9 Insertion Hole 10 Rib 11 Boss 12 Rubber Contact 13 Substrate 14 Dial Key 15 Waterproof Packing 17 Through Hole 20 Charging Terminal

Claims (2)

(57) [Scope of request for utility model registration] A key switch device including a substrate having a plurality of fixed contact portions and a rubber contact formed with a plurality of key top portions having a movable contact portion;
In a portable communication device having a built-in rechargeable battery as a power supply and a charging terminal for charging the rechargeable battery provided with one end thereof exposed to the outside, the charging terminal insertion portion of the cabinet is watertight by the rubber contact. A portable communication device characterized by being temporarily blocked. 2. An end portion of the charging terminal and a substrate are screwed to a boss of the cabinet to electrically connect the charging terminal and a circuit portion of the substrate, and a rubber is provided between the charging terminal and the cabinet. 2. The mobile communication device according to claim 1, wherein the contact is sandwiched, and a projection is formed on a charging terminal crimping surface of the rubber contact.