JPH0897890A - Charging terminal equipment for cordless telephone equipment - Google Patents

Abstract

PURPOSE: To clean the contact surface of a terminal at the time of usage by coping with contact failure and continuity failure caused by the dirt or the formation of an oxide film on the contact surface of the terminal. CONSTITUTION: In a charger 5, a pair of U-shaped terminal members 11, 11 provided with elastic arms 10, 10, which are respectively provided with movable terminals 8 to their tips, in a state where the movable terminals 8 oppose each other are provided so that the movable terminals project to the inside of the recessed part 6 of the charger 5 while 11 are closely and parallelly arranged. On the other hand, a cordless telephone equipment 1 is provided with fixed terminals 3, 3 opposing each other on both sides near the terminal parts in an exposed state. Then, with the attaching and detaching of the cordless telephone equipment 1 to the recessed part 6, the movable terminals 8, 8 of the charger 5 and the fixed terminals 3, 3 of the cordless telephone equipment 1 are rubbed with each other to clean the contact surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging terminal device for a cordless telephone, and more particularly to a structure of a connecting terminal portion between a cordless telephone and a charger.

[0002]

2. Description of the Related Art As a conventional charging terminal portion for a cordless telephone, for example, as shown in FIG. 4, a metal plate is attached to a wall of a case C of a charger B which also serves as a mounting base of the cordless telephone A. The elastic arms D, D made of steel are attached in a cantilevered state by screws E, and a movable terminal F is formed near the tip of the elastic arm D. The movable terminals F, F project outward from the wall surface of the case C. In the cordless telephone A, the fixed terminals G and G are provided so as to be exposed on the wall of the case H of the cordless telephone A. -With the placement of dress telephone A, cord telephone A
In many cases, the fixed terminals G, G in FIG. 1 are pressed against the movable terminals F, F kept elastically in a substantially vertical direction which coincides with the movable direction. Although the above example is a stand-up type, the pressure contact relationship between the fixed terminal and the movable terminal is almost the same as in the stand-up type also in the horizontal type and the wall-mounted type.

[0003]

In the above-mentioned prior art, since the terminals facing each other are pressed against each other while facing each other,
When the spring action of the elastic arm D is weak or deteriorates, poor contact is likely to occur and charging may be hindered, and the contact surface of the terminal may be soiled or an oxide film may be formed. It is easy to cause conduction failure and disturb charging.
When a problem occurs during charging as described above, the above-mentioned conventional technique has the disadvantages that it is necessary to inspect, clean, and replace the charging terminal.

Therefore, an object of the present invention is to deal with contact failure and continuity failure due to contamination of the contact surface of the terminal or formation of an oxide film, so that as long as it is normally used, no special maintenance is required. Another object of the present invention is to provide a charging terminal device for a cordless telephone at a low cost, in which the contact surface is not soiled or an oxide film is not formed.

[0005]

In order to achieve the above object, the present invention sets an elastic arm having a movable terminal projecting inward toward a tip end inside a charger so that the movable terminals face each other. The pair of substantially U-shaped terminal members that are provided are installed in the state in which the positive and negative electrodes are arranged in close proximity to each other, and the movable terminals are attached so as to project inside the receiving portion of the charger. Both terminal members are separately connected to the terminals of the charging circuit unit provided in the charger, while the cordless telephone has a pair of positive and negative poles on both sides near the ends thereof. It is characterized in that the fixed terminals to be formed are exposed and are wider than the interval between the movable terminals in the facing state, and are connected to the internal storage battery.

[0006]

When the cordless telephone is inserted into and removed from the movable terminals provided in the receiving portion of the charger so as to face each other, the movable terminal and the fixed terminal are separated from each other. By rubbing in a pressed contact state, the movable terminal and the fixed terminal are cleaned by this rubbing to maintain a good contact relationship at all times, and the cordless telephone is inserted and placed in the receiving portion of the charger. , The storage battery is charged.

Further, when the cordless telephone is inserted for connection between the movable terminals provided in the receiving portion of the charger so as to face each other, the fixed terminal portion comes into pressure contact with the corresponding movable terminal. , For example, when the cordless telephone is biased to one side without being placed in the center between both movable terminals, the contact state between the movable terminal and the fixed terminal is one set of + pole and − pole on one side. However, the contact pressure decreases in one set on the other side, but a reliable connection is always obtained regardless of uneven distribution of insertion.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings.

A cordless telephone 1 applied to this embodiment.
For example, as shown in FIG. 1 to FIG. 3, fixed charging terminals 3 and 3 are provided in an exposed state at the end of the elongated flat case 2 on the side of the transmitter, and the storage battery 4 is provided inside the case 2. Is provided so as to be electrically connected to the fixed terminals 3 and 3, and as the charger 5 therefor, a case 7 having a concave portion 6 adapted to receive the lower end portion of the cordless telephone 1 is provided. In addition to providing the movable terminals 8 for charging corresponding to the fixed terminals 3, 3 of the cordless telephone 1 in the concave portion 6, the case 7 is provided with the tip protruding.
A charging circuit unit 9 is provided therein, and its output side is electrically connected to the movable terminals 8 and 8, so that FIG.
As described above, the cordless telephone 1 is placed in the concave portion 6 of the case 7 in a loosely fitted state, and the fixed terminals 3 and 3 are kept in pressure contact with the movable terminals 8 and 8. Adopt a model that is designed to charge the storage battery 4 built in the.

The structure of the present invention for the above type is as follows:
In the embodiment of FIGS. 1 to 3, the elastic arm 10 having the movable terminals 8 and 8 projecting inward toward the tip is placed inside the charger 5 so that the movable terminals 8 and 8 face each other. A pair of upright substantially U-shaped terminal members 11, 11
With the movable terminals 8 and 8 protruding inward from the holes 12 and 12 of the recess 6 of the charger 5, the screws 13 and
13 and both of these terminal members 11, 1
Reference numeral 1 separately connects these to a charging circuit unit 9 provided in a case 7, and the cordless telephone 1 has a pair of positive and negative poles on both side surfaces near its ends. With the fixed terminals 3 and 3 exposed,
The movable terminals 8 in the opposed state are provided wider than the space between them and connected to the internal storage battery 5.

Under the above-mentioned structure, when charging,
The dress telephone 1 and the charger 5 are separated from each other as shown in FIG. 1, and the cordless telephone 1 is inserted and mounted in the recess 6 of the charger 5 at the lower end portion thereof. The fixed terminals 3 and 3 are in pressure contact with the movable terminals 8 and 8 of the charger 5 while rubbing against each other, and a stable connection state is maintained.

Even when the cordless telephone is not placed in the center between both movable terminals and is biased to one side, the contact state between the movable terminal and the fixed terminal is + and − on one side. The contact pressure decreases in one set of the poles, but the contact pressure increases in the other set on the other side, so that a reliable connection state is always obtained regardless of uneven insertion.

[0013]

As described above, according to the present invention, the pair of substantially U-shaped terminal members 11 and 11 in which the elastic movable terminals 8 and 8 are erected so as to face each other are the positive pole and the negative pole, respectively. As a result, the movable terminals 8, 8 are juxtaposed in the interior of the charger 5 so as to project into the concave portion 6 in the proximity state. On the other hand, the cordless telephone 1 is provided on both sides of the end portion of the cordless telephone 1. Since the fixed terminals 3 and 3 forming a pair of + pole and − pole are exposed and are wider than the space between the movable terminals 8 in the facing state, the recesses 6 of the charger 5 are provided. As the cordless telephone 1 is inserted / removed, the movable terminals 8 and 8 and the fixed terminals 3 and 3 are rubbed in a state of being pressed against each other, and both terminals are cleaned by their own friction by this rubbing, and special maintenance is performed. Despite not applying it, always maintain good contact There is no possibility to cause a charging failure due to poor connection.

Further, since the cordless telephone is inserted between the movable terminals provided in the receiving portion of the charger so as to face each other, the fixed terminal portion elastically moves between the movable terminals. Since the cordless telephone is biased to one side without being placed in the center between the two movable terminals due to the pressure contact with the sandwiched state, one set of + pole and − pole on one side Although the contact pressure is reduced, the contact pressure is increased in one set on the other side, so that a reliable connection state can always be obtained regardless of uneven insertion.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view illustrating a cordless telephone equipped with a charging terminal device of the present invention in a state in which a cordless telephone is removed from a charger.

FIG. 2 is a vertical sectional front view showing a charging state of the charging terminal device for the cordless telephone of FIG.

3 is a cross-sectional plan view taken along the line III-III in FIG.

FIG. 4 is a vertical cross-sectional side view illustrating a conventional charging terminal device for a cordless telephone.

[Explanation of symbols]

 1 cordless telephone 3 fixed terminal 5 charger 6 recess 8 movable terminal 9 charging circuit unit 10 elastic arm 11 terminal member

Claims (1)

[Claims] 1. An elastic arm (10) having a movable terminal (8),
(10) is a terminal member (11) having a substantially U-shape, in which the movable terminals (8), (8) are erected so as to face each other,
The movable terminals (8) and (8) project inside the recessed portion (6) for receiving inside the charger (5) while the (11) is arranged as a positive pole and a negative pole side by side in close proximity. These terminal members (1
1) and 11) respectively connect these to the charging circuit unit (9), and the cordless telephone (1), on the other hand, has a positive pole and a negative pole on both sides of the cordless telephone (1). Under the condition that the fixed terminals (3) and (3) forming a pair are exposed, the fixed terminals (3) and (3) are connected to the internal storage battery (5) with a width wider than the distance between the movable terminals (8) and (8). A charging terminal device for a cordless telephone.