JP2003348209A - Battery charger for portable telephone set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a user or the like from getting an electric shock at the time of touching a feed terminal of a battery charger for a portable telephone set. <P>SOLUTION: The battery charger 2 provided with feed terminals 24 so as to be connected to a power supply to charge a battery 14 of the portable telephone set 1 by bringing charging terminals 16 of the portable telephone set 1 put on the charger 2 into contact with the feed terminals 24 is provided with a switch 28a for turning ON a charge circuit 28 built in the charger 2 when the portable telephone set 1 is put on the charger 2 and turning OFF the circuit 28 when the telephone set 1 is removed from the charger 2. <P>COPYRIGHT: (C)2004,JPO

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging stand for charging a battery of a portable telephone, and more particularly to a charging stand that can be charged only when the portable telephone is placed on the charging stand.

[0002]

2. Description of the Related Art FIG. 1 shows a folding portable telephone (1) and a conventional charging stand (2). The mobile phone (1) has a hinge part between the operating cabinet (11) and the display cabinet (12).
It is formed so as to be foldable and connected at (13). FIG.
As shown in (1), a battery (14) is detachably mounted on the back of the operation side cabinet (11). Operation cabinet (1
1) has locking grooves (15) and (15) on both sides of the free end. As shown in FIG. 2, the locking grooves (15) and (15) are provided on the back of the cabinet (11).
It has charging terminals (16) and (16) in close proximity to. Charging terminal (1
6) and (16) are electrically connected to the battery (14). At one end of the pivot side of the operation side cabinet (11), a locking recess (1
7) is formed.

A charging stand (2) is provided with a charging terminal of the portable telephone (1) on one side of one end of a mounting part (21) on which the portable telephone (1) is placed with the operation side cabinet (11) facing down. (16) Equipped with power supply terminals (24) and (24) capable of contacting with (16), and in the locking grooves (15) and (15) of the mobile phone (1) near the power supply terminals (24) and (24). Engageable fixed claws (2
3) It has (23). A mobile phone at the other end of the charging stand (2)
The lock lever (26) of (1) is built-in, and the lever is spring-biased so that the hook piece (26c) at the tip of the lock lever (26) comes out of the locking recess (17) so as to be detachable. . The terminal (3) of the AC adapter for connecting to the power supply is connected to the charging stand (2), and is electrically connected to the power supply terminals (24) and (24) through the power supply circuit (28) of the charging stand (2). .

A charging stand is provided in the locking groove (15) (15) of the portable telephone (1).
When the mobile phone (1) is placed on the base such that the fixing claws (23) and (23) of (2) are fitted, the hook pieces (26c) of the lock lever (26)
Is pushed by the end of the mobile phone (1) and retreats. When the mobile phone (1) is correctly placed on the charging stand (2), the hook piece (26c) of the lock lever (26) fits into the locking recess (17).
At this time, the charging terminals (16) and (16) of the mobile phone (1)
Contacting the power supply terminals (24) and (24) in (2)
Charging of the battery (14) of (1) is started.

[0005]

A conventional charging stand (2) is
When connected to a power supply via the AC adapter, the charging circuit in the charging base (2) is energized regardless of whether the mobile phone (1) is mounted on the base. Therefore, when a finger shakes at the same time on the two power supply terminals 24 of the empty charging stand 2, a minute current flows through the body, and there is a possibility that a burn may occur depending on conditions. The present invention provides a mobile phone with a charging stand (2).
It is an object of the present invention to clarify a charging stand that can solve the above-mentioned problem by allowing the charging circuit to be energized only when (1) is placed.

[0006]

The charging stand of the present invention has a power supply terminal (2).
4) connected to a power supply with a charging circuit (28) having (24),
The charging terminals (16) and (16) of the placed mobile phone (1) are brought into contact with the power supply terminals (24) and (24), and the battery of the mobile phone (1) is
In the charging stand for charging (14), the charging stand (2) is provided with a charging circuit (28) by placing the mobile phone (1) on the stand.
Is turned on, and a switch (28a) for turning off the charging circuit (28) by removing the mobile phone (1) from the charging stand (2) is provided.

[0007]

[Operation and Effect] When the mobile phone (1) is not placed on the charging stand (2), the charging circuit (28) is OFF, and the power supply terminals (24) and (24) are energized. It has not been. Therefore, even if the two power supply terminals 24, 24 are simultaneously touched by a finger, no current flows through the body. Charging stand
(2) When the mobile phone (1) is placed on the battery, the charging circuit (28) is automatically turned on and the battery (14) of the mobile phone (1) is turned on.
Is charged. As described above, the charging circuit (28) is in the OFF state unless the mobile phone (1) is placed on the charging stand (2). There is no danger of electric shock even if the finger touches).

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment, a charging stand (2) for a portable telephone (1) according to FIGS. 1 and 2 will be described.

The charging stand (2) is, as shown in FIGS.
It is formed in a flat hollow housing, and the upper surface is a mounting portion (21) for the mobile phone (1). Positioning walls (22) and (22) project upward from both corners on one end side of the mounting portion (21), and fixing claws (23) and (23) face inward at the upper ends of the positioning walls (22) and (22). ) Is provided. Power supply terminals (24) and (24) are provided on the mounting portion (21) close to the positioning walls (22) and (22). The power supply terminals (24) and (24) are formed by bending a spring plate, and are provided with holes (2) formed in the mounting portion (21).
5) It is outside from (25). The power supply terminals (24) and (24)
It is connected to a charging circuit (28) provided in the charging stand (2).

The other end of the charging stand (2) has an AC connected to a power supply circuit.
A connection port (29) for connecting the terminal (3) of the adapter is provided. A hollow guide projection (27) is provided in a protruding manner at one corner of the connection port (29) side end of the charging stand (2), and is provided near the guide projection (27) as shown in FIG. A lock lever (26) is provided in the charging stand (2) to be rotatable about a pivot (26d) in a vertical plane.

The lock lever (26) has two free ends (26a) and (26b) which are opened by about 90 ° about the pivot (26d), and one free end (26a) is connected to the guide projection (27). The hook piece (26c) is bent at the front end. A hole is formed in the wall of the guide projection (27) on the side where the mobile phone is placed.
(27a) is opened, and the hook piece (26c) is exposed to the outside of the lock lever (26) from the hole. Lock lever
The other free end (26b) of (26) faces the switch (28a) on the charging circuit (28). The lock lever (26) is urged by a spring (not shown) in a direction in which the hook piece (26c) projects from the hole (27a).

As shown in FIG. 5, a portable telephone is provided on a charging stand (2).
When (1) is not placed, the free end (26b) of the lock lever (26) on the switch (28a) side pushes the switch to turn off the charging circuit (28). Mobile phone (1) such that fixing claws (23, 23) of charging stand (2) fit into locking grooves (15, 15) of operating cabinet (11) of mobile phone (1). The charging stand
As shown in FIG. 6, the lock lever (26) is pushed by the hinge (13) side end of the portable telephone (1) and pivots clockwise as shown in FIG. Open the phone downhill,
As shown in FIG. 7, the portable telephone set (1) is correctly placed on the placing section (21).

[0013] The portable telephone (1) is placed on the mounting portion (21) of the charging stand (2).
At the same time as the hook piece (2
6c) is opposed to the locking recess (17) of the mobile phone (1), the lock lever (26) is rotated by the spring force, and the hook piece (26c) is used for locking the mobile phone (1). Fits in the recess (17). As a result, the mobile phone (1) is softly locked. At this time, the posture of the lock lever (26) is different from that when the charging stand (2) shown in FIG. Without operating (28a)
The charging circuit (28) is turned on. When the mobile phone (1) is placed on the charging stand (2), the locking groove of the mobile phone (1)
(15) and (15) press and contact the power supply terminals (24) and (24) of the charging stand (2), and the battery (14) of the mobile phone (1) is charged.

As described above, the portable telephone is placed on the charging stand (2).
When (1) is not mounted, the charging circuit (28) is turned off.
F, and the power supply terminals (24) and (24) are not energized. Therefore, even if the two power supply terminals 24, 24 are simultaneously touched by a finger, no current flows through the body.
Also, without placing the telephone (1) on the charging stand (2), the charging circuit (2)
In order to turn the lock lever (26) to turn on 8), the hook piece (26c) of the lock lever (26) must be
7) must be pressed in, but since this pressing direction is different from the direction in which the finger touches the power supply terminals (24) and (24) by 90 °,
There is no danger that the pressing of the hook piece (26c) and the touching of the power supply terminals (24) and (24) are performed unconsciously and simultaneously, thereby further improving the safety.

When the mobile phone (1) is placed on the charging stand (2), the charging circuit (28) is automatically turned on, and the mobile phone is turned on.
The battery (14) of (1) is charged.

As shown in FIG. 7, when the mobile phone (1) is softly locked to the charging stand (2) and the hinge (13) of the mobile phone (1) is lifted, the lock lever is raised. (26) hook piece
(26c) is pushed back by the edge of the locking recess (17) of the mobile phone (1) and retreats, allowing the mobile phone (1) to be detached from the charging stand (2).

FIG. 4 shows another embodiment of the present invention, in which a switch (28a) on a charging circuit (28) is exposed outside from a mounting portion (21) of a charging stand (2). And the mobile phone (1) directly hits the switch (28a) to turn on the charging circuit (28).
It is turned off.

The description of the above embodiments is for the purpose of illustrating the present invention and should not be construed as limiting the invention described in the appended claims or reducing the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims.

[Brief description of the drawings]

FIG. 1 is a perspective view of a mobile phone and a charging stand.

FIG. 2 is a rear perspective view of the mobile phone.

FIG. 3 is a perspective view of the charging stand of the present invention.

FIG. 4 is a perspective view of a charging stand according to another embodiment.

FIG. 5 is a sectional view showing a relationship between a lock lever and a switch when a charging circuit is OFF.

FIG. 6 is a cross-sectional view showing a relationship between a lock lever and a switch while the mobile phone is being placed on the charging stand.

FIG. 7 is a cross-sectional view showing a relationship between a lock lever and a switch in a state where a mobile phone is placed on a charging stand.

[Explanation of symbols]

(1) Mobile phone (14) Battery (15) Lock groove (16) Charging terminal (17) Locking recess (2) Charge stand (21) Receiver (24) Power supply terminal (26) Lock lever (28) Charge circuit

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor, Nagata             Sanyo-cho, 1-1, Sanyocho, Daito-shi, Osaka             Communications Co., Ltd. F-term (reference) 5G003 AA01 BA01 FA02                 5H030 AA06 AS14 AS18 BB01 BB12                       DD06 DD25                 5K023 AA07 BB23 DD08 KK04 LL04                 5K067 AA35 BB04 EE02 KK06 KK17

Claims (2)

[Claims] 1. A charging circuit (28) having power supply terminals (24) (24).
The charging terminals (16) and (16) of the mobile phone (1) which are connected to a power source and placed thereon are brought into contact with the power supply terminals (24) and (24) so that the battery ( In the charging stand for charging 14), the charging stand (2) turns on the charging circuit (28) by placing the portable telephone (1) on the stand, and the portable telephone is transferred from the charging stand (2). Turn off charging circuit (28) by removing (1)
A charging stand for a mobile phone equipped with a switch (28a). 2. A lock lever for engaging a locking recess (17) on a mobile phone (1) to softly lock the mobile phone (1) on the base. (26), the lock lever
The charging circuit (28) is generated by the displacement of the lock lever (26) depending on the presence / absence of engagement between the locking lever (26) and the locking recess (17) of the mobile phone (1).
The charging stand according to claim 1, wherein the charging stand is turned on and off.