JP2001351719A - Rotary power plug device - Google Patents

Abstract

(57) [Summary] [Problem] To provide a rotary power plug which is compatible with European and American standards of 200V, has a simple structure, has a small number of parts, and is downsized. A plug support piece (10) is rotatably provided at one end of an insertion plug accommodating recess (3) provided on the surface of a housing (1).
, The plug support piece 10 supports and protrudes the insertion plug 11 made of a conductive metal material, and the bottom face 10 b of the plug support piece 10 is provided with a contact 19 that is electrically connected to each insertion plug 11. When the plug support piece 10 is inserted and raised with the plug 11, the contact 19 comes into contact with the connection terminal 20 in the housing 1, and the inserted plug 11 falls down together with the plug support piece 10 and is accommodated in the recess 3. So that the bottom surface 10a of the plug support piece 10
The stopper projection 31 is urged in a projecting direction by a spring 36 so that the stopper projection 31 can be freely moved in and out.
Stopper operation knob 34 for operating 1 in the retraction direction
Is provided on the surface of the plug support piece 10 and is inserted into the housing 1 so that the stopper projection 31
Is provided with a stopper engagement portion 30 with which the engagement is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary power supply plug device for use in an AC charger or the like for charging a storage battery type portable electronic device from an AC power supply. The present invention relates to a rotary power plug device that is stored in a recess of a housing when not in use, and protrudes when used to be inserted into an outlet.

[0002]

2. Description of the Related Art Conventionally, an AC charger for charging a storage battery of a portable electronic device such as a portable telephone or a notebook personal computer has been developed mainly based on European standards.
For connection to a 0V power source, as shown in FIG. 11, a plug support piece 102 is formed integrally with a housing 101, and round plug-shaped insertion plugs 103, 103 are supported by the plug support piece 102. It is protruding.

[0003] In the case where the plug is fixedly protruded from the housing plug as described above, the whole plug is bulky and inconvenient for carrying, but most of the round bar type plugs of this kind are integrally formed from the housing. In general, the plug has a shape in which the plug is projected.

On the other hand, in an AC charger based on Japanese domestic standards, for example, as shown in Japanese Patent Application Laid-Open No. 6-68930, a pair of insertion plugs having a rectangular plate shape are held integrally with a plug support piece. The plug support piece is rotatably supported with respect to the housing. When not in use, the plug is inserted into the plug accommodating recess formed on the outer surface of the housing, and the plug is folded down together with the support piece. Various types of rotary power plug devices have been developed and used.

[0005]

However, this kind of conventional rotary power plug according to Japanese domestic standard cannot be used as it is for a power plug compatible with 200 V of European and American standards.

Further, in the conventional rotary power plug, the mechanism for preventing the plug support piece from falling down to the housing and releasing the fall prevention from the housing is complicated, and the housing becomes large, so that there is a limit to downsizing.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a rotary power plug having a simple structure, a small number of parts, and a reduced size, which is compatible with European and American standards of 200V. is there.

[0008]

SUMMARY OF THE INVENTION The features of the present invention for solving the conventional problems as described above and achieving the intended purpose are as follows.
A recess for inserting a plug is provided on the surface of the housing, and a plug support piece is rotatably supported at one end of the recess, and the plug support piece supports an insertion plug made of a conductive metal material and protrudes. A contact is provided on the bottom surface of the plug support piece, which is electrically connected to each insertion plug.When the plug support piece is raised with the insertion plug, the contact comes into contact with a connection terminal in the housing. In a rotary power plug device in which an insertion plug is folded down together with the plug support piece and is accommodated in the recess, a stopper projection is urged in a projecting direction by a spring on the bottom surface of the plug support piece. A stopper operation knob provided so as to be able to freely move in and out, and operating the stopper projection in a retracting direction is provided on a surface of the plug support piece, and Lies in that the stopper projections upon standing state of the Insert plug is provided with a stopper engaging portion engaged.

In the apparatus having the above characteristics, a slider is movably accommodated inside the plug support piece, a stopper operation knob is integrally provided on the back surface of the slider, and a stopper projection is provided at a tip of the slider moving direction side. Integrally provided, the slider is urged by a spring in the direction in which the stopper projection is pushed out, and the side opposite to the plug protruding surface of the plug support piece is formed as a semi-cylindrical surface centered on the rotation center of the plug support piece. Extending the bottom surface of the concave portion to a position close to the semi-cylindrical surface of the plug support piece, accommodating an electronic circuit device for an AC charger in a housing main body, and connecting a terminal that contacts a contact on a back surface of the plug support piece to the circuit. It is preferable that the device is fixed to a printed circuit board of the device and that the insertion plug has a round bar shape.

[0010]

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

FIGS. 1 to 10 show an embodiment of a rotary power plug apparatus according to the present invention.

This embodiment is a 200 V-compatible power plug device in which a round plug-shaped insertion plug is rotatably supported with respect to a housing. In FIG. 1, reference numeral 1 denotes a housing. The housing 1 includes a housing body 1a and a lid 1b.
Are fitted to each other to form a hollow box shape.

A so-called AC charger circuit, which converts a 200V AC power supply into a 6V DC power supply and supplies it to a battery of a mobile phone or the like, is held and accommodated in the housing body 1a.

A recess 3 for accommodating a plug is integrally formed in the lid 1b in a shape in which the outer surface of the lid is depressed. A plug support piece 10 made of an insulating synthetic resin material is rotatably housed inside one end of the recess 3, and the base end side of a round bar-shaped insertion plug 11 is integrally embedded in the plug support piece 10. It is protruding.

At both ends of the plug support piece 10, support shafts 10a, 10a are integrally provided at the center of rotation thereof, and the support shafts are supported by bearings 12, 12 provided on both sides of the concave portion 3. I have.

Each of the bearings 12 has a substantially semicircular shape and is provided on the housing body 1a and the lid 1b.
It is constituted by a pair of bearing halves 12a and 12b. One of the bearing halves 12a is formed at the tip of a bearing projection 13 protruding from the housing body 1a,
The other bearing half 12b is a bearing projecting piece 14 horizontally projecting from an opening edge on both sides of one end of the recess 3 in the lid 1b.
By fitting the housing body 1a and the lid 1b together, the bearing projection 13 is inserted into the lid 1b, and the two halves 12a and 12b are joined to each other to form a circular bearing. 12 are configured.

Then, the plug support piece 10 is set in the recess 3 with the support shaft 10a aligned with the bearing half 12b, and then the lid 1b and the housing main body 1a are fitted to each other. Is inserted into the lid 1b, the bearing half 12a at the tip thereof is aligned with the other bearing half 12b from below the support shaft 10a, and the bearing 12 supporting the support shaft 10a is After being assembled, the plug support piece 10 is assembled to the housing 1.

A bottom surface 10b of the plug supporting piece 10 opposite to the plug projecting portion is formed into a semi-cylindrical surface centered on the rotation center of the support shafts 10a, 10a.
The tip of a is extended to below the plug support piece 10, and the upper surface is substantially in contact with the bottom surface 10b.

Further, window holes 16 are formed on both sides of the distal end portion of the bottom cover 3a, through which bearing projections 13 projecting from the housing body 1a are inserted.

On the bottom surface of the plug support piece 10, contacts 19, 19, which are electrically connected to the plug, protrude from the extension of the rear end side of the plug inserted therein. On the other hand, on the surface of the AC charger circuit board 2 accommodated in the housing body 1a, a connection terminal 20 made of a leaf spring is fixed at a position corresponding to each contact 19 of the plug support piece 10, and the insertion plug is inserted. By rotating together with the plug support piece 10 in the upright direction, each contact 19 comes into elastic contact with the connection terminal 20.

The substrate 2 is fixed by screws 21 so as to close the opening of the lid 1b, and the lid 1b and the housing body 1a are fitted to each other to fix each of the circuit components fixed to the substrate 2. Electronic components are accommodated in the housing body 1a.

The plug accommodating recess 3 has a wide portion formed to a depth and width corresponding to the outer shape of the plug support piece 10, and a narrower and shallower bottom portion, corresponding to the length and width of both insertion plugs 11. In the state where the insertion plug is turned in parallel with the upper surface of the housing, the entire plug support piece 10 and the insertion plug are inserted into the plug receiving recess 3. It is to be housed inside.

On both sides of the narrow portion of the plug accommodating concave portion, a pair of plug engaging projections 2 facing the center side is provided on the open side edge.
The plugs 2 and 22 are integrally provided so that the plugs 11 are elastically deformed and pushed in by the plug locking projections 22 when the plugs are dropped into the recesses 3. Thereby, the operation of the insertion plug in the upright direction is regulated, and the state of being accommodated in the concave portion 3 is maintained.

A power supply output cord lead-out window 23 is formed in the housing body 1a, and an electric cord 24 for outputting a DC power supply extends outward from the window.

The plug supporting piece 10 and the bottom plate 3a of the plug accommodating recess 3 are provided with a falling-prevention mechanism. This mechanism includes a stopper engaging portion 30 opened at the tip of the bottom plate portion 3a.
The stopper projection 3 protrudes from the bottom surface of the plug support piece 10, that is, the side opposite to the plug projection.
1 engages to prevent the plug support piece 10 from falling down, and by pulling the projection 31 into the plug support piece 10, the engagement is released, and the plug support piece 10 becomes rotatable in the falling direction. That's what we do.

The stopper projection 31 is provided on the plug support piece 1.
A slider 33 is slidably accommodated in a slide groove 32 formed in a central portion of the slider 0 and integrally protrudes from a tip of the slider 33.

The slider 33 is formed in a rectangular plate shape as shown in FIG. 8, and has the stopper projection 31 protruding at the tip thereof, and a stopper operation knob 34 integrally formed at the center of the front surface. It is protruding. Then, the stopper projection 31 is fitted into the projection insertion hole opened in the center of the bottom surface of the plug support piece 10, and the stopper operation knob 34 is moved outward from the window hole 35 opened in the front of the plug support piece 10. The coil spring 36 urges the stopper projection 31 in the projecting direction.

The stopper projection 31 is provided on the plug support piece 1.
The one side of the rotation direction 0 is an inclined surface 31a. When the insertion plug 11 is operated in the rising direction, the inclined surface 31a is slidably brought into contact with the distal end surface of the concave bottom plate portion 3a and is pushed in. When the plug support piece 10 reaches the joint portion 30, it is pushed out by the coil spring 36, protrudes into the engagement portion 30, and stops the plug support piece 10 from rotating.

The plug support piece 10 is connected to the main body 4 shown in FIG.
10 and a lid 41 shown in FIG.
1 and 11 are assembled, and the slider housing 4
2, and a window hole 34 is opened in communication therewith.
The lid body 41 has a slider presser 44 integrally formed at the center thereof.

Contact fitting portions 45a and 45b are formed at the bottom of the plug support piece between the main body portion 40 and the lid portion 41, and the contacts 19 are fitted into both fitting portions. 40
By contacting the lid 41 with the contact member 19, the contact 19 is incorporated so as not to fall off. The contact 19 is electrically connected to the insertion plug 11 via a conductive material 46.

In the rotary power plug device constructed as described above, the plug is inserted into the plug support piece 1 when not in use.
By falling down into the recess 3 together with 0, the protrusion of the plug is eliminated, the bulk is reduced, and the shape becomes convenient for carrying. In use, the insertion plug is raised from the inside of the recess 3 so as to be pivoted in the upright direction about the support shafts 10a, 10a, and the fall prevention projection 31 projecting from the plug support piece 10 is turned into the recess 3. The upright state is maintained by engaging with the stopper engaging portion 30 opened in the bottom plate portion 3a of the base plate 3a, and at the same time, the contact 19 elastically contacts the connection terminal 20 on the substrate 2 to electrically connect with the AC charger circuit. A connection is made.

From this standing state, the stopper operation knob 3
4, the slider 33 is moved in the protrusion retraction direction against the coil spring 36, whereby the stopper projection 31 is retracted into the plug support piece 10, and the engagement with the stopper engagement portion 30 is released, and the plug support is released. The movement of the piece 10 in the falling direction becomes possible.

[0033]

As described above, according to the present invention, a plug receiving recess is provided on the surface of the housing, and the plug support piece is rotatably supported at one end of the recess. The plug support piece supports and protrudes an insertion plug made of a conductive metal material, and a contact is provided on the bottom surface of the plug support piece so as to conduct to each of the insertion plugs, and the plug support piece is raised with the insertion plug. In the rotating power plug device, the contact contacts the connection terminal in the housing when the connector is in the retracted state, and the inserted plug is folded down together with the plug support piece to be accommodated in the recess. A stopper operation knob for urging the stopper projection on the bottom surface of the support piece in the projecting direction by a spring so that the stopper projection can be freely moved in and out, and operating the stopper projection in the retracting direction. , Provided on the surface of the plug support piece,
By providing the housing with a stopper engagement portion with which the stopper projection engages when the insertion plug is in the upright state, the fall prevention mechanism in the upright state of the insertion plug is housed in the plug support piece. The plug support piece is stored in the plug storage groove when not in use,
It can be installed without increasing the shape of the housing. Further, in a state in which the above-mentioned fall-preventing mechanism is assembled to the plug support piece, the piece can be incorporated into the housing, which facilitates the assembly.

According to the present invention, in the above rotary power plug device, a slider is movably housed inside the plug support piece, a stopper operation knob is integrally provided on the back surface of the slider, and the slider operation direction side is provided. A stopper projection is integrally provided at the tip, and the slider is urged in the direction in which the stopper projection is pushed out by a spring. In a 200 V power plug device of European standard using a plug, it is possible to incorporate the plug without increasing the shape of the plug support piece.

Further, according to the present invention, in the above-mentioned rotary type power plug apparatus, the side opposite to the plug projecting surface of the plug supporting piece is a semi-cylindrical surface centered on the center of rotation of the plug supporting piece, and By extending the bottom surface to a position close to the semi-cylindrical surface of the plug support piece, the back surface of the rotating plug support piece and the bottom surface of the concave portion are always in close proximity, and the gap leading to the inside of the housing is always set to a predetermined level or less. It becomes easy to do.

Further, according to the present invention, in the above rotary power plug device, an electronic circuit device for an AC charger is accommodated in a housing main body, and a terminal for contacting a contact on a back surface of the plug support piece is printed by the printed circuit device. By fixing to the substrate, a compact and portable AC charger that can fold the plug can be configured.

Further, according to the present invention, in the above-mentioned rotary type power plug device, a 200 V power plug device of European standard can be obtained by forming the insertion plug into a round bar shape.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of an AC charger in which a rotary power plug device according to the present invention is implemented, in a plug standing state.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a partial cross-sectional view showing a bearing portion of the device shown in FIG.

FIG. 4 is a sectional view taken along line AA in FIG.

FIG. 5 is a sectional view taken along line BB in FIG. 4;

FIG. 6 is a sectional view taken along line CC in FIG. 5;

FIG. 7 is a sectional view taken along line DD in FIG.

8 (A) is a plan view, FIG. 8 (B) is a front view, and FIG. 8 (C) is a longitudinal sectional view.

9 (A) is a plan view, FIG. 9 (B) is a front view, and FIG. 9 (C) is a longitudinal sectional view.

10 (A) is a plan view, FIG. 10 (B) is a front view, and FIG. 10 (C) is a longitudinal sectional view.

FIG. 11 is a perspective view showing a conventional example.

DESCRIPTION OF SYMBOLS 1 Housing 1a Housing body 1b Lid 2 Substrate 3 Recess for plug accommodation 3a Bottom plate 10 Plug support piece 10a Support shaft 10b Bottom surface 11 Insertion plug 12 Bearing 12a, 12b Bearing half 13 Bearing protrusion 14 Overhanging piece for bearing 16 Window hole 19 Contact 20 Connection terminal 21 Screw 22 Plug locking projection 23 Power output cord lead-out window 24 Electric cord 30 Stopper engaging part 31 Stopper projection 31a Inclined surface 32 Slide groove 33 Slider 34 Stopper operation Knob 35 Window hole 36 Coil spring 40 Body part 41 Lid body part 42 Slider accommodation part 43 Window hole 44 Slider holder 45a, 45b Contact fitting part 46 Conductive material

Claims (5)

[Claims] 1. An insertion plug receiving recess is provided on a surface of a housing, and a plug support piece is rotatably supported at one end of the recess, and the plug support piece is made of a conductive metal material. The plug is supported and protruded, and a contact is provided on the bottom surface of the plug support piece so as to be electrically connected to each insertion plug. When the plug support piece is raised with the insertion plug, the contact is connected to the connection terminal in the housing. , And the insertion plug is turned down together with the plug support piece so as to be accommodated in the concave portion. A stopper projection is provided on a bottom surface of the plug support piece by a spring in a projecting direction. A stopper operation knob is provided on the surface of the plug support piece so that the stopper projection is operated in the retracting direction by urging the plug support piece in and out. A rotary power plug device comprising a housing and a stopper engaging portion that engages with the stopper projection when the insertion plug is in an upright state. 2. A slider which is movably accommodated inside a plug supporting piece, a stopper operation knob is integrally provided on the back surface of the slider, and a stopper projection is integrally provided on a tip end of the slider moving direction side. 2. The rotary power plug device according to claim 1, wherein the spring is urged by a spring in a direction in which the protrusion for the stopper is pushed out. 3. The plug support piece has a semi-cylindrical surface opposite to the plug projecting surface with respect to the center of rotation of the plug support piece, and the bottom surface of the recess is close to the semi-cylindrical surface of the plug support piece. The rotary power plug device according to claim 1 or 2, wherein the power plug device is extended to a position. 4. An electronic circuit device for an AC charger is accommodated in a housing main body, and a terminal for contacting a contact on a back surface of a plug support piece is fixed to a printed circuit board of the circuit device. 4. The rotary power plug device according to claim 1. 5. An insertion plug according to claim 1, wherein said insertion plug has a round bar shape.
The rotary power plug device according to 3 or 4.