JP2006304524A - Battery charger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery charger that prevents an electric shock or short circuit by storing a charging terminal inside a casing when an electronic apparatus is not mounted, that is excellent in connectability with the electronic apparatus when mounted, and that is effective in reducing the number of components. <P>SOLUTION: This battery charger is provided with the casing that has a mounting surface on which the electronic apparatus to be charged is mounted, a rotating body inside the casing, and a rotating body actuation member that actuates the rotation of the rotating body. The rotating body actuation member is provided so as to be freely slidable almost in parallel to the mounting surface. A pressing portion faces the mounting surface from the inside of the casing and the connection portion is pivotally attached to the rotating body, which has a rotating shaft and the charging terminal. The contact portion of the charging terminal is made to freely protrude from and retreat into the mounting surface by sliding the rotating body actuation member, which is activated by a spring in such a way as to keep the contact portion of the charging terminal in a retreat position. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a charging base for electronic devices, and more particularly to a charging base for portable electronic devices such as mobile phones.

In a portable electronic device, for example, a mobile communication device such as a mobile phone uses a charging stand to charge a built-in battery.
Such a charging stand may be short-circuited by a metal product if its charging terminal is always exposed to the outside, or it may feel uncomfortable even when touched by a person, or it may cause injury to some people. There is a fear.
For this reason, a technique for storing the charging terminal in the case when the mobile phone is not charged has been proposed.
Japanese Patent Laid-Open No. 2003-134680 discloses a technique for switching a charging terminal between a protruding position and a retracted position from a case.
This is to switch the protrusion and depression of the charging terminal by pushing the pressed part protruding from the case for a predetermined stroke with the mobile phone. A mobile phone is pushed in and attached.
Therefore, the operation is a two-step operation including a positioning operation and a pushing operation.
In addition, the number of parts was large due to the two-stage operation mechanism.
Furthermore, if the positioning is insufficient, the charging terminal hits the mold part, and contact failure due to resin adhesion is likely to occur.
Japanese Patent Application Laid-Open No. 2003-348209 discloses a technique for switching a connection to a charging terminal by providing a switch in the charging circuit. However, the positioning of the mobile phone is also interlocked with the switch operation before the connection to the charging terminal is performed. Action was necessary.
In addition, switch parts are necessary, and the number of parts is large, which is one of the causes of high costs.

JP 2003-134680 A JP 2003-348209 A

  In view of the above technical problems, the present invention accommodates the charging terminal in the case when the electronic device is not attached, prevents electric shock or short circuit, and has excellent connectivity with the electronic device when attached, and is effective in reducing the number of components. The purpose is to provide a basic charging stand.

  According to a first aspect of the present invention, there is provided a charging base for an electronic device, wherein the charging base includes a case having a mounting surface for mounting the electronic device to be charged, a rotating body in the case, and the rotating body rotating. A rotating body operating member to be operated. The rotating body operating member is provided so as to be slidable substantially parallel to the mounting surface, and has a pressed portion at one end and a rotating body at the other end. A connecting portion; the pressed portion faces the mounting surface from within the case; the connecting portion is pivotally attached to the rotating body; the rotating body has a rotating shaft and a charging terminal; This is a point in which the contact portion of the charging terminal can be protruded and sunk freely on the mounting surface by sliding, and the rotating body operating member is elastically biased into the contact portion immersing state of the charging terminal.

The electronic device is mounted on the case as it is by pressing the pressed portion along the mounting surface.
By pushing the pressed portion, the rotating body operating member slides parallel to the mounting surface, the rotating body pivoted on the end of the rotating body rotates, and the tip of the charging terminal attached to the rotating body is mounted. Projects to the surface and connects to the power receiving terminal of the electronic device.
In this way, the pressed portion is pushed in by a linear motion when the electronic device is mounted along the mounting surface, and the rotating body operating member is synchronized with the linear motion, and is converted into a rotating motion in the rotating body, and the charging terminal protrudes. It becomes operation.
In this case, since the position where the electronic device abuts against the pressed portion of the rotating body operating member is determined, the timing of protruding the charging terminal is also determined in synchronization.
Further, when the electronic device is removed from the case, the charging terminal is immersed in the case by the restoring force of the elastic body operating member.

  The technical gist of the invention described in claim 2 is that a concave housing wall portion that roughly matches the convex pressing portion shape of the electronic device main body is formed at the end portion of the mounting surface of the case, and the central portion of the housing wall portion is formed. It is the point which has arrange | positioned the to-be-pressed part of a rotary body operation member.

When the electronic device is inclined to be mounted by forming the storage wall at the end of the mounting surface so as to substantially match the shape of the convex pressing portion of the electronic device main body, the pressing portion of the electronic device is stored in the storage wall. It won't go into the back of the department.
Therefore, if the pressed part is arranged at the center of the concave-shaped storage wall part, the pressed part is arranged in a recessed part. Therefore, when the electronic device is tilted, the electronic device pressing part is turned to the rotating body operating member. This prevents the charging terminal from protruding without the electronic device being mounted.

  The charging stand according to the present invention is excellent in mountability because the charging terminal can be protruded by a series of operations of sliding mounting the electronic device along the mounting surface formed on the charging stand.

The movement of the rotating body operating member sliding along with the mounting operation of the electronic device is converted into the rotating operation by the rotating body and directly linked to the protruding operation of the charging terminal, so that the charging timing of the charging terminal is also determined in synchronization.
In addition, the structure is simple and effective in reducing the number of parts.

  Since a concave storage wall that substantially matches the shape of the convex pressing part of the main body of the electronic device is provided on the mounting surface formed on the case, and the pressed part of the rotating body operating member is arranged at the center, the careless cover Prevents improper protrusion of the charging terminal due to the pressing of the pressing portion, and prevents a short circuit or electric shock accident when the electronic device is mounted.

The electronic apparatus to which the present invention is applied is not particularly limited as long as it is rechargeable. Hereinafter, a charging stand for a mobile phone (such as a charging desktop holder) will be described as an example.
FIG. 2 (a) shows an external view of the charging stand, and FIG. 3 shows an exploded main part view.
The case of the charging stand 10 is formed by fitting an upper case 11 and a lower case 12 molded with resin, and has a mounting surface 13 of a mobile phone on the upper surface of the upper case 11.
A pair of charging terminal projecting and recessed openings 14 into which the contact portions 23a of the charging terminal project and sink are provided at one end of the mounting surface 13 on the longitudinal direction side.
On the other end, a storage wall 40 is formed so as to rise from the mounting surface 13, and a pressed portion protruding opening 15 is provided in the storage wall 40, and a rotating body operating member to be described later is provided from this opening 15. The pressed part 31 is protruded.
A guide-shaped guide wall 41 along the side surface 2a of the mobile phone to be mounted is protruded upward from the upper case 11 on both the left and right sides of the opening 14 for charging terminal protrusion.
The storage wall portion 40 is formed on the terminal end side 11a in the mobile phone mounting direction, and is concave so as to surround the pressed portion 31 in a substantially arc shape.
On the side of the charging terminal protrusion / subtraction opening portion 14, a hook portion 16 is provided and a small hook portion 50 is provided.
The hook portion 50 has a shaft 52 attached to the bearing 18 c and urges the claw 51 with a spring 53.
When the cellular phone 1 is inserted in the direction of arrow A along the mounting surface 13 and the protruding pressing portion 5 at the tip is abutted against the abutting portion 40a which is a recessed portion of the storage wall portion 40, the charging claw 17 of the charging base and the mobile phone 1 are carried. The engaging groove 6 of the telephone is engaged, and the receiving part 3 of the bottom part 2b of the mobile telephone and the claw 51 of the hook part 50 are engaged.
The hook portion 50 is set to a low height from the mounting surface 13 so as not to hinder the insertion operation of the mobile phone 1.
FIG. 2B shows a state in which the mobile phone is mounted on the charging stand.
When the mobile phone 1 is inserted by sliding the bottom 2b along the mounting surface 13 in the direction of arrow A shown in FIG. 2 (a), the pressing portion 5 of the main body 2 of the mobile phone 1 presses the pressed portion 31. And push it in the direction of arrow A.
The charging base 10 uses this pushing force to project the charging terminal contact portion 23a from the charging terminal protrusion / subtraction opening 14, and connects the contact portion 23a to the pad-shaped power receiving terminal 4 of the mobile phone 1 for charging. Do.
The operation of the charging terminal at this time will be described with reference to the operation explanatory diagram shown in FIG. 1 and the exploded main part diagram shown in FIG.
FIG. 1 shows a longitudinal section of the charging stand, and only the main parts are shown for easy understanding.
FIG. 1 (a) shows a state before the mobile phone is attached.
A rotating body (swivel arm) 20 is provided in the charging stand 10 so as to be rotatable by a rotating shaft 21, and a rod-shaped rotating body operating member (actuator) 30 is provided along the mounting surface 13, and one end thereof is provided. It is pivotally attached to the rotating body.
The rotating body 20 is depicted by drawing a side surface thereof and seeing through a connecting portion between the charging terminal 23 and the rotating body operating member 30.
The rotating body operating member 30 is formed in a substantially L shape when viewed from the side in the sliding direction. The rotating body operating member 30 is fitted into the guides inside the cases 11 and 12 so that a predetermined range in the longitudinal direction of the mounting surface 13 can be moved substantially parallel to the mounting surface. An elastic member (coil spring) 33 is provided between the spring receiving portion 18d on the case 11 side and the spring mounting portion 30a on the rotating body operating member side, and is biased in a direction in which the pressed portion 31 protrudes.
The end of the rotating body operating member 30 on the rotating body 20 side is pivotally attached to the connecting section 22 of the rotating body provided with a U-shaped connecting portion 32 and spaced from the rotating shaft 21 toward the mounting surface 13. ing.
FIG. 5A shows a plan view of the rotating body 20 and the rotating body operating member 30 taken out.
As shown in the sectional view taken along the line D-D in FIG. 5B, the rotating body 20 is located between the connecting portion 22 and the rotating shaft 21 at a predetermined distance from the rotating shaft 21 toward the mounting surface. A charging terminal 23 made of a torsion spring-like elastic body is attached.
The charging terminal 23 is connected (not shown) to the connector 19 shown in FIG.
The tip of the charging terminal 23 is bent into a mountain shape, and the top is used as a contact portion 23a.
The rotating body 20 rotates from the position where the contact portion faces the charging terminal protrusion / opening opening 14 from the inside so that the rotating body 20 protrudes out of the case 11 through the opening 14 or is inserted into the case 11. 21 is attached to the inside of the case 11.
When the electronic device is not mounted, the rotating body operating member 30 is spring-biased by the elastic member 33 to rotate the rotating body 20, and the contact portion 23 a is immersed in the case 11.
The end of the rotating body operating member 30 on the opposite side of the rotating body 20 extends in the L shape toward the mounting surface 13 to form a pressed part 31.
The pressed portion 31 protrudes from the pressed portion protruding opening 15 in which the upper case 11 is opened.

FIG. 1B shows a state in which the mobile phone is inserted in the direction of arrow A and the mobile phone main body 2 is brought into contact with the pressed portion.
In this state, when the pressed portion 31 is pushed by the mobile phone 1, the rotating body operating member 30 moves in the same direction (arrow B direction) along the mounting surface 13 in synchronization therewith.
FIG. 1 (d) shows an enlarged view of the rotating body portion.
Since the rotating body operating member 30 is connected to the connecting portion 22 of the rotating body 20, the rotating body 20 rotates around the rotating shaft 21 (arrow C), and is attached to the rotating body 20 thereby. The charging terminal 23 also rotates.
Then, the charging terminal contact portion 23a starts to rise toward the charging terminal projecting / opening portion 14.
The timing at which the charging terminal 23 starts to rise can be set at a position where the pressed part 31 is provided.
Further, since the contact portion 23a of the charging terminal 23 rotates, the speed at which the contact portion 23a ascends can be set by changing the distance between the rotation shaft 21 and the contact portion 23a, for example.
As described above, the structure can be easily set so as to raise the charging terminal 23 in synchronization with the movement of the position of the mobile phone power receiving terminal 4 while having a simple structure with few intervening parts.
Therefore, the charging terminal 23 and the power receiving terminal 4 can be moved while sliding the mobile phone 1 without positioning the mobile phone and a part of the charging stand at the beginning of the mounting operation of the mobile phone as in the prior art. Can be connected accurately.
By accurately connecting the charging terminal 23 and the power receiving terminal 4 in this way, for example, the charging terminal 23 is deformed by rubbing the mold part 4a around the power receiving terminal 4 or contact by shavings scraped off the mold part 4a. Defects can be prevented.
The cellular phone 1 is slid along the mounting surface 13, the pressing portion 5 of the cellular phone case is abutted against the abutting portion 40a, and the engaging groove 6 of the cellular phone 1 is fitted into the locking claw 17 of the abutting portion 40a. Include.
The engagement groove 6 is depicted only on the back side for easy understanding.
Then, as shown in FIG. 1B, the mobile phone 1 is pressed as it is toward the mounting surface 13 to engage the hook portion 50 and the hook receiving portion 3 of the bottom portion 2b.
In this state, the connection between the contact portion 23a and the power receiving terminal 4 is completed.
Since the pressing operation of the cellular phone 1 is completely different from the conventional operation of pushing the pressed portion to protrude the charging terminal, the cellular phone 1 is simply engaged by the hook portion 50. The pressing stroke can be minimized.
The operation until the mobile phone 1 is locked to the hook portion 50 is an operation of moving the mobile phone 1 in substantially the same direction, and can be performed with almost no change in the longitudinal direction of the mobile phone 1.
Thus, the mounting operation can be performed quickly and easily as a series of operations (one-step operation).
Although the drawing shows a state where the electronic device is slid from the longitudinal direction along the mounting surface 13, the electronic device is mounted on the mounting surface 13 from above, so that the pressing portion 5 faces the pressed portion 31. The pressed part 31 may be pushed in by sliding from there.

Next, the pressing restriction of the pressed portion when the mobile phone is inserted by the storage wall will be described.
As shown in FIG. 2 (a), the storage wall portion 40 has a recessed cellular phone insertion side, and protrudes so as to surround the pressed portion 31 in an arc shape symmetrically in the width direction of the charging base upper case 11. .
Both ends of the substantially arc-shaped portion protrude from the pressed portion 31 to the contact portion 23a side (mobile phone insertion side).
As shown in FIG. 2B, the recessed shape of the storage wall portion 40 is recessed in a shape that roughly matches the outer diameter shape of the pressing portion 5 of the mounted mobile phone 1, and follows the shape of the distal end portion 5 of the mounted mobile phone 1. It has a shape that fits.
For this reason, when the mobile phone 1 is inserted in an upward direction with respect to the normal insertion direction, for example, as shown in FIG. The leading end portion upper side 5 a interferes with the abutting portion 40 a of the storage wall portion 40.
At this time, the tip side lower side 5 b interferes with the mounting surface 13.
As described above, the storage wall portion 40 has a shape that interferes with the distal end portion of the shift portion of the mobile phone with respect to the normal insertion position, thereby restricting the pressing of the pressed portion by the inclined mobile phone.
Further, for example, as shown in FIG. 4B, when the mobile phone 1 is to be inserted while being inclined in the horizontal direction, even if the mobile phone 1 is tried to be substantially parallel to the mounting surface 13 as it is, FIG. ), The guide wall portion 41 interferes with the mobile phone bottom portion 2b.
At this time, the upper end portion 5a of the mobile phone 1 interferes with the abutting portion 40a, and the lower end portion 5b of the mobile phone 1 interferes with the mounting surface 13 to prevent the pressed portion 31 from being pushed.
Since the guide wall 41 interferes with the mobile phone bottom 2b and the direction of the mobile phone 1 cannot be made substantially parallel to the mounting surface 13, it prevents the abutment portion 40a and the mounting surface 13 from interfering with the mobile phone main body 2. is doing.
The size of the pressed portion 31 is preferably set to a minimum necessary size that allows a predetermined protruding operation of the charging terminal to be obtained and the mobile phone to be surely pushed in, in order to restrict pushing by an inclined electronic device.
In order to prevent the electronic device main body portion to be mounted to be tilted from coming in front of the storage wall portion, it is preferably located at the back side of the concave storage wall portion abutting portion 40a, preferably in the center in the left-right direction, and in the vertical direction. It is good to provide a to-be-pressed part in the center part.
Thereby, the pushing-in of the pressed portion 31 is restricted to prevent the charging terminal from protruding in an erroneous mounting state.
In this way, the storage wall and the guide wall are provided to prevent the charging terminal from protruding when the mobile phone is inadvertently tilted and mounted, and a short circuit or electric shock accident due to the charging terminal protruding accidentally. Can be prevented.

Operation | movement explanatory drawing of the charging stand which concerns on this invention is shown. (A) shows an external view of the charging stand, and (b) shows an external view of the mobile phone mounted state. The exploded principal part figure of a charging stand is shown. Explanatory drawing of the effect | action with respect to the mobile telephone of a storage wall part is shown. (A) shows the top view which took out the rotation body and the rotation body operation member, (b) shows DD sectional view.

Explanation of symbols

1 Mobile phone (electronic equipment)
2 Mobile phone body 4 Mobile phone power receiving terminal 5 Mobile phone press 10 Mobile phone charging base (electronic equipment charging base, charging desktop holder)
DESCRIPTION OF SYMBOLS 11 Charging stand upper case 12 Charging stand lower case 12a Screw 12b Rubber leg 13 Mounting surface 14 Charging terminal protrusion opening portion 15 Pressed portion protrusion opening portion 16 Hook opening portion 18a Rotating body operation member guide 18b Rotating body bearing 18c Lock portion Bearing 18d Spring receiving portion 20 Rotating body 21 Rotating shaft 22 Rotating body connecting portion 23 Charging terminal 23a Charging terminal contact portion 30 Rotating body operating member (actuator)
30a Spring mounting part 31 Pressed part 32 Connecting part 33 Elastic member (coil spring)
40 Storage wall portion 40a Abutting portion 41 Guide wall portion 50 Hook portion 51 Hook portion claw 52 Hook portion shaft 53 Hook portion spring

Claims (2)

In the charging stand for electronic devices,
The charging stand includes a case having a mounting surface for mounting an electronic device to be charged, a rotating body in the case, and a rotating body operation member that rotates the rotating body.
The rotating body operating member is provided so as to be slidable substantially parallel to the mounting surface, and has a pressed portion at one end and a connecting portion with the rotating body at the other end.
The pressed part faces the mounting surface from inside the case, the connecting part is pivotally attached to the rotating body, the rotating body has a rotating shaft and a charging terminal, and the contact of the charging terminal by sliding of the rotating body operating member A charging stand characterized in that the rotating part operating member is elastically urged into the contact part immersion state of the charging terminal.   Forming a concave housing wall that roughly matches the shape of the convex pressing portion of the electronic device main body at the end of the mounting surface of the case, and placing the pressed portion of the rotating body operating member at the center of the housing wall The charging stand according to claim 1, wherein:

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