JP2005117700A - Power receiving terminal structure of electronic apparatus and charging terminal structure of charger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide power receiving terminal and charging terminal structure in which the charging terminal of a charger can make a direct sliding connection with the power receiving terminal of an electronic apparatus, e.g. a mobile phone, without scratching the case part thereof when the power receiving terminal is formed in the recess of the electronic apparatus and the power receiving terminal surface on the corresponding electronic apparatus side exhibits high wiping effect. <P>SOLUTION: In the charger for an electronic apparatus, an actuator is fixed into the charger case while being spring charged such that a protrusion provided at one end of the rotary shaft of the actuator projects outward from the opening of the charger case around the center of rotation, a press part is formed at the other end of the actuator, a charging terminal spring charged to project the contact part of the charging terminal outward from the opening is pressed inward of the charger case by the press part, the power receiving terminal of the electronic apparatus is fixed to face the opening such that the protrusion of the actuator is pushed in, and then the charging terminal is projected and connected with the power receiving terminal on the electronic apparatus side. The power receiving terminal surface on the electronic apparatus side is arranged to incline in the facing direction against the charging terminal contact part on the charger side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a power receiving terminal structure of an electronic device such as a mobile phone, which has a high effect of preventing connection failure, and a charging terminal structure of a charger corresponding thereto.

In an electronic device such as a mobile phone (hereinafter sometimes referred to as a telephone), a charger is used to charge a built-in battery.
In such a charger, the charging terminal is generally exposed to the outside at all times, and there is a risk of short-circuiting with a metal product, or a low voltage when touched by a person, but feeling uncomfortable. Some people may cause injury (electric injury).
Also, when the electronic device is attached to the charger, the power receiving terminal of the electronic device is attached with a recess in the case for safety, so if the charging terminal portion of the charger protrudes to the outside, first the case It may rub against the part, peel off the resin or paint, adhere to the charger contact part, and cause charging failure.
In addition, there is a case where an insulating film is formed on the power receiving terminal of the electronic device and the charging terminal of the charger due to aging, and if such an insulating film is not removed, it may cause a charging failure. There was also.
Japanese Patent Application Laid-Open Nos. 2003-169121 and 2000-134808 disclose a technique in which a charging terminal protrudes and contacts a power receiving terminal such as a mobile phone. Since it only protrudes oppositely, the correspondence to an insulating film was inadequate.
Japanese Patent Laid-Open No. 2002-272004 discloses that when a portable communication device is not attached to a charger, a charging terminal is accommodated in a charger case, a brush is attached to the notch for the charging terminal, and the charging terminal protrudes. A technique for cleaning the charging terminal is disclosed, and JP-A-10-172617 provides a movable shielding member at the opening of the charging terminal of the charger. Although a technique for cleaning the charging terminal with a brush provided on the shielding member in a state covered with the shielding member is disclosed, there is no effect on the insulating film of the power receiving terminal on the portable communication device side.

JP 2003-169121 A JP 2000-134808 A JP 2002-272004 A Japanese Patent Laid-Open No. 10-172617

  In view of the above technical problem, the present invention is such that when a power receiving terminal is formed in a recess of an electronic device such as a mobile phone, the charging terminal of the charger is directly connected to the power receiving terminal without rubbing against the case portion of the electronic device. An object is to provide a power receiving terminal and a charging terminal structure that can be slidably connected and have a high wiping effect on the corresponding power receiving terminal surface on the electronic device side.

  According to a first aspect of the present invention, in the charger for an electronic device, the actuator is attached with a spring so that the projecting portion provided at one end projects outward from the opening of the charger case with the rotation shaft of the actuator as a rotation center. The charging terminal is mounted in the charger case while being biased, a pressing portion is formed at the other end of the actuator, and the charging terminal spring-biased so that the contact portion of the charging terminal protrudes from the opening to the pressing portion. After pressing the charger case inward and mounting the receiving terminal of the electronic device facing the opening so as to push in the protruding portion of the actuator, the charging terminal protrudes and connects to the receiving terminal on the electronic device side This is the point that I tried to do.

  With the rotation axis of the actuator as the center of rotation, the spring biased so that the protruding part provided at one end protrudes outside from the charger case opening means that the electronic device is not attached to the charger The protrusion of the actuator is spring-biased so as to protrude from the case opening, and when the electronic device is attached to the charger, the protrusion is pushed into the case of the electronic device against the spring elasticity. Means that it was placed in

When the protruding part of the actuator hits the case of the electronic device and is pushed, the pressing part formed on the opposite side of the protruding part around the rotating shaft will rise and retreat. The contact portion of the charging terminal is also spring-biased so as to protrude from the same opening as that for the actuator protruding portion of the charger case, so that the protruding portion of the actuator is pushed in Project in the opposite direction.
Therefore, in the present invention, the contact portion of the charging terminal does not necessarily need to be stored in the case of the charger when the electronic device is mounted, and the protruding portion of the actuator may be higher than the charging terminal.
This is because if the tip of the protruding portion of the actuator is positioned above the contact portion of the charging terminal when the electronic device is not mounted, the tip of the charging terminal is protected by the protruding portion of the actuator.
In addition, the charging terminal protrudes according to the amount of rotation of the actuator when the protruding part of the actuator hits the case of the electronic device and is pushed, so the contact part of the charging terminal is mounted so as to rub the surface of the receiving terminal on the electronic device side. Will be.

According to the second aspect of the present invention, since the power receiving terminal surface on the electronic device side is inclined with respect to the charging terminal contact portion on the charger side in the opposite direction, It acts to rub the surface more strongly.
Here, the fact that the power receiving terminal surface is inclined in the opposite direction means that the charging terminal is inclined so as to face the direction in which the charging terminal protrudes.

In the present invention, the contact portion of the charging terminal that is spring-biased by rotating so that the protruding portion of the actuator is pushed into the case of the electronic device protrudes. Since the charging terminal on the charger side is at the position of the opening where it protrudes, interference between the case part of the electronic device and the charging terminal is prevented, and the resin or coating on the surface of the charging terminal due to sliding contact between the case part and the charging terminal contact part Can prevent contact failure.
In addition, when the electronic device is slid, the charging terminal contact portion slides on the surface of the power receiving terminal of the electronic device, so even if an insulating film or dirt is formed on the contact terminal, this film or the like Can be removed by rubbing.
Contact failure is prevented by the wiping effect of the electronic device power receiving terminal surface by the charging terminal contact portion.
Further, since the surface of the power receiving terminal on the electronic device side is inclined so as to face the contact portion of the charging terminal, that is, confronts, the wiping effect is further enhanced.

FIG. 1 shows a perspective view of an embodiment of a charger 10 according to the present invention, FIG. 2 shows a component configuration diagram, and FIG. 3 shows an operation diagram of a charging terminal.
Note that all electronic devices of the charging specification are targeted, but a mobile phone will be described as an example.
First, the overall movement will be described with reference to FIG. 1. A mobile phone to be charged is mounted by sliding along a guide 13 provided on the upper surface of the charger upper case 12 of the charger 10.
When sliding, the case portion of the cellular phone first pushes the actuator protrusion 16a into the charger upper case 12, and in conjunction with the rotation of the actuator 16, the spring is extended from the charging terminal protrusion opening 15 of the charger. The contact portion 11c of the charged charging terminal 11 protrudes and comes into contact with the power receiving terminal of the mobile phone.

Next, the operation of the charging terminal will be specifically described with reference to FIG.
FIG. 3A shows a state in which the mobile phone is not attached.
The actuator 16 is rotatably attached to the charger upper case 12 by an actuator rotating shaft 16c, and the actuator protrusion 16a protrudes from the protrusion opening 15 of the charger upper case by an actuator spring (torsion spring) 17. Is spring-biased.
The actuator spring 17 is a torsion spring, and as shown in FIGS. 2 and 3 (a), one end 17a is constrained to the charger case side and the other end 17c is constrained to the actuator side. Torsional elasticity occurs.
Further, the charging terminal 11 is also connected to the board in the charger case so that the contact part 11c of the charging terminal protrudes from the opening 15 of the charger upper case 12 to the coil spring part 11a via the connecting part 11b. In the state where the mobile phone is attached, the coil spring portion 11a of the charging terminal 11 is provided by the protruding charging terminal pressing portion 16b provided on the actuator 16 as shown in FIG. The connecting portion 11b of the charging terminal is pressed downward so that the contact portion 11c of the charging terminal does not protrude above the protruding portion 16a of the actuator 16.
Therefore, the actuator spring 17 is set stronger than the coil spring portion 11 a of the charging terminal 11.

Next, when charging the mobile phone, the mobile phone 1 is slid along the guide portion 13 of the charger upper case 12 as shown in FIG.
Note that the mobile phone has a diagonal line in the case portion for easy understanding, and the power receiving terminal 2 is formed by providing a concave portion in the case portion.
As described above, since the power receiving terminal of the mobile phone is generally attached with a recess formed in the case so as not to be discharged by touching the outside, the protruding portion 16a of the actuator 16 is attached to the case portion 3 of the mobile phone. First you will win.
When the protruding portion 16a is pushed by the case portion 3 of the telephone, as shown in FIG. 3 (c), the actuator 16 rotates in the direction of W around the rotating shaft 16c. The pressing portion 16b of the actuator that has been pressed in the direction moves upward.
Then, since the charging terminal contact portion 11c is spring-biased by the coil spring portion 11a, the charging terminal contact portion 11c protrudes in the direction of f1 in conjunction with the rotation of the actuator 16, and hits the power receiving terminal attached to the concave portion of the telephone.
The charging terminal contact portion 11c is mounted from the position S1 in FIG. 3 (c) where the charging terminal contact portion 11c starts to hit the power receiving terminal 2 of the mobile phone to the state S2 shown in FIG. 3 (d). Since the spring is biased in the direction of f1 while rubbing the surface of the power receiving terminal 2, the contact portion is reliably connected.
At this time, since the surface of the power receiving terminal 2 is disposed so as to face the charging terminal, the contact portion of the charging terminal is in sliding contact with the surface strongly so that the wiping action is large.

The external appearance perspective view of the charger for portable telephones which concerns on this invention is shown. The case of the battery charger for mobile phones which concerns on this invention, and the principal part exploded view of a charger charge terminal part are shown. It represents the operation of the charging terminal when a mobile phone is attached to the charger.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile phone 2 Receiving terminal 3 of mobile phone Mobile phone case part 10 Charger 11 Charge terminal 11a Coil spring part 11b Connection part 11c of a charge terminal and a coil spring part Charge terminal contact part 11d Board connection side 12 of a charge terminal Charger upper case 13 Guide part 14 Charger lower case 15 Charging terminal and projecting opening 16 of actuator projecting part Actuator 16a Actuator projecting part 16b Actuator charging terminal pressing part 16c Actuator rotating shaft 17 Actuator spring (torsion spring)

Claims (2)

  In the charger for electronic devices, the actuator is spring-biased in the charger case so that the protruding portion provided at one end protrudes outside from the opening of the charger case with the rotation axis of the actuator as the rotation center. Attach and form a pressing part at the other end of the actuator, and connect the charging terminal spring-biased so that the contact part of the charging terminal protrudes outside from the opening. The charging terminal protrudes and is connected to the power receiving terminal on the electronic device side after mounting the power receiving terminal of the electronic device facing the opening so as to push the protruding portion of the actuator. Charge terminal structure of the charger to be used.   A power receiving terminal structure for an electronic device, wherein the power receiving terminal surface on the electronic device side is inclined with respect to the charging terminal contact portion on the charger side in an opposite direction.

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