JP2582141Y2 - Plate Battery Charger Plug - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a small, lightweight, particularly thin plug for charging a plate-shaped battery.

[0002]

2. Description of the Related Art A plate-shaped battery is used as a power source of a portable electric device which is particularly required to be thin. As shown in FIG. 6, the plate-shaped battery 100 has electrode portions 101 near both ends and has a plate shape. Therefore, the charger used for charging the plate-shaped battery is also required to be thin.

[0003] Such a thin charger is proposed, for example, in Japanese Utility Model Registration Application No. 35792 and Utility Model Registration Application No. 35793 in 1992. This charger has a main body for accommodating a plate-shaped battery, a lid, and a plug for plugging into an outlet during charging. In such a charger, when charging the plate battery, the lid of the charger is opened with the hinge portion as a fulcrum, the plate battery is stored in the main body, and the lid is closed. On the other hand, the plug is rotated at an arbitrary angle with respect to the charger main body, and inserted into the outlet to perform charging. The function of the plug is to be rotatable with respect to the conductive terminal and to be able to always maintain electrical contact with the conductive terminal.

An example of a conventional plug is shown in FIGS. That is, the plug 103 is connected to the exposed electrode 1
08 and a conical trapezoidal slide washer 111 are integrally formed by a resin mold 112 while maintaining a conductive state. On the other hand, the plug connection terminal 115 is
It is fitted into a groove or the like provided in a plug storage frame 116 integrally formed with the plug.

As shown in FIG. 10, a connection terminal hole 119 is provided in the plug connection terminal 115, and a slide washer 111 of the plug 103 is fitted into the connection terminal hole 119. Thus, even if the plug 103 rotates, the exposed electrode 1
08 and the plug connection terminal 115 are always kept conductive.

[0006] The plug 103 is a plate-shaped battery storage case 110.
7 and 8 are shown in perspective views. FIG.
In the plug connection terminal 115, a lead wire or the like is connected to the constricted portion 120 by soldering or the like, and is connected to the circuit side (not shown) of the substrate.

[0007]

The plug 103 having such a structure has the following disadvantages. That is, the slide washer 111 of the plug 103 and the plug connection terminal 11
5 to improve the electrical contact of the plug connection terminal 115
Sliding washer 11 of plug 103 from the width between both end faces of
The contact pressure is secured by making the length between the contact surfaces of both sides slightly larger in dimension and making it elastically deform so as to make pressure contact.

Therefore, the plug housing frame 116 is pushed to both sides by the sliding washers. At this time, the plate-shaped battery housing case 110 is thin and may bend.
That is, FIG. 11 is a side view of the plate battery charger including the plate battery storage case 110 viewed from the plug side. As shown in FIG. 11, the main body warps to the back cover side, and cracks may occur in the wiring pattern of the board. There is a possibility that. In addition, the sliding washer 111 of the plug 103 and the conductive portion of the connection terminal hole 119 of the plug connection terminal 115 may cause electrical contact failure due to wear. In addition, when the plug 103 is incorporated into the charger main body, the finished dimensions protrude from the recesses on the back surface of the main body, or apply unnecessary external force to the charger main body to always maintain the contact when the plug rotates. .

The present invention has been made in view of the above circumstances, and solves the above-mentioned problems as a structure of a rotatable plug required for a thin charger, and provides a plug having good electrical contact. It is intended to be realized.

[0010]

According to this object, a plug of a plate-shaped battery charger according to the present invention has a plate-shaped battery storage case having a main body capable of containing a plate-shaped battery and a lid. A battery charger plug, wherein the plug has a protruding position protruding outside the plate-shaped battery storage case near a periphery of a main body of the plate-shaped battery storage case and a storage position stored in a recess of the plate-shaped battery storage case. A plug having an exposed electrode which can be inserted into an outlet and a conductive rotating shaft fixed to a rotation fulcrum portion of the exposed electrode and extending laterally. And an elastic deformation in which a bearing force is formed by a spring force to contact a bearing portion provided on the main body and supporting the rotating shaft and a rotating shaft attached to the main body and extending from the bearing portion. Possible conductive contacts It is characterized in that it comprises.

[0011]

In order to incorporate such a plug into the plate-shaped battery storage case, remove the back cover from the plate-shaped battery storage unit body,
The rotating shaft of the plug is rotatably fitted into the bearing, the rotating shaft is brought into contact with the conductive contact, and finally the back cover is attached to the main body of the plate-shaped battery housing, and the assembling operation is completed. FIG. 2 is a perspective view of FIG. 2 showing a state in which the plug is incorporated in the plate-shaped battery housing body. The plug is freely rotatable in a range of 180 ° while being supported by the bearing by the rotating shaft.

The exposed electrode of the plug is kept in a conductive state irrespective of its rotation by the contact of the rotating shaft and the conductive contact having spring pressure. At this time, only the spring force in the thickness direction of the plate-shaped battery storage case body required for the contact between the rotating shaft and the conductive contact acts between the two, and the force for expanding the plug housing frame in the axial direction of the rotating shaft is Does not work at all.

Therefore, even if it is a thin charger, its main body does not turn over. FIG. 5 is a view of the plate battery charger viewed from the plug side.

The use of a rod-shaped rotary shaft having a polygonal cross section of a quadrangle or more can lock the exposed electrode at an arbitrary rotation angle.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings showing one embodiment. FIG. 1 is a side view of a plate-shaped battery charger, 1 is a plate-shaped battery charger, and the plate-shaped battery charger 1 includes a plate-shaped battery storage case 2 and a plug 3 attached thereto. . The plate-shaped battery storage case 2 has a main body 4 and a lid 5. The lid 5 is connected to the main body 4 via a hinge 9 so that the upper surface of the main body 4 can be opened and closed. The main body 4 and the lid 5 cooperate with each other to accommodate the plate-shaped battery 100. The main body 4 includes a plate-shaped battery housing main body 6 for housing a circuit board and the like, and a back cover 7 for closing the lower surface opening of the plate-shaped battery housing main body 6. The plug 3 is rotatably attached to the plate-shaped battery housing main body 6 of the main body 4.

FIG. 2 is a perspective explanatory view showing a state where the plug of the present invention is taken into the main body of the plate-shaped battery storage case and the back cover is removed. To explain the present invention with reference to FIG.
4A and 4B are described with reference to the plan view and the side view of the plug of the present invention, and the perspective view of the conductive contact of the present invention of FIG.

As shown in FIG. 3, the plug 3 is integrally formed with a resin mold 12 while keeping the exposed electrode 8 and the rotating shaft 11 in a conductive state. The rotating shaft 11 is a rod made of a conductive material such as brass, and comprises a cylindrical rotating shaft portion 11a and a cylindrical or polygonal electrode contact portion 11b.
At the rotation fulcrum portion of. On the other hand, the plate-shaped battery housing body 6 has a recess 13 in which the plug 3 can be housed.
Are formed, and along the edge of the depression 13, a plug storage frame 16 integrally formed in a bank shape is formed,
Further, a groove is formed in the plug housing frame 16. This groove functions as a bearing 14 that supports the rotary shaft 11 of the plug 3. The plug 3 is rotatably supported on the main body 4 by the bearing 11 supporting the rotating shaft 11 of the plug 3.

As shown in FIG. 1, the plug 3 is rotatable within 180 ° between a protruding position and a stored position, and after charging is completed, a recess 13 provided in the main body for convenient carrying.
So that it does not protrude from the lower plate surface of the main body. Since the width of the exposed electrode 8 is specified to be 7 mm according to JIS, the recess 13 has a depth of about 7.5 mm as a limit that the plug 3 can be stored without protruding.

The rotating shaft 11 protrudes and extends on both sides of the bearing portion 14, and the electrode contact portion 11 b is in contact with the conductive contact 15. The conductive contact 15 is, as shown in FIG.
It is made of a conductive material such as phosphor bronze, and is formed by bending a rectangular plate material into a rectangular shape to form a spring. The spring force maintains contact with the electrode contact portion 11b of the plug 3. . The conductive contact 15 is connected to a circuit board (not shown) arranged in the main body 4 of the plate-shaped battery storage case 2.

When such a plug 3 is incorporated in the plate-shaped battery storage case 2, the plate-shaped battery storage section main body 6 of the main body 4 is used.
The back cover 7 is removed from the shaft, and the rotating shaft 11 of the plug 3 is
4, the electrode contact portion 11b is brought into contact with the conductive contact 15, the bearing sesame 17 is put on the rotating shaft portion 11a, and finally the back cover 7 is attached to the plate-shaped battery housing main body 6 and assembled. Ends. The plug 3 is kept conductive by the electrode contact portion 11b and the conductive contact 15 while being supported by the bearing portion 14 by the rotating shaft portion 11a of the rotating shaft 11, and can be freely rotated within a range of 180 °.

The exposed electrode 8 of the plug 3 is connected to an electrode contact portion 11b.
The conductive state of the contact 15 is maintained irrespective of its rotation. At this time, only the spring force in the thickness direction of the main body 4 necessary for the contact between the electrode contact portion 11b and the conductive contact 15 acts between the two, and pushes out the plug housing frame 16 in the center line direction of the rotating shaft 11. Power does not work at all.

Therefore, even if it is a thin charger, its main body will not bend. FIG. 5 is a view of the plate battery charger 1 viewed from the plug 3 side.

By using a polygonal prism having a cross section of the electrode contact portion 11b of the rod-shaped rotary shaft 11 of a quadrangle or more, the exposed electrode 8 can be locked at an arbitrary rotation angle. For example, when the electrode contact portion 11b is a quadrangle having a rectangular cross section, one side of the square of the electrode contact portion 11b is pressed by the conductive contact 15 and can be locked at a position of 90 ° or 180 °.

[0024]

As described above, by using the plug according to the present invention, in a thin charger in which the thickness of the main body must be reduced as much as possible, a force which gives a deformation to the main body of the charger is applied. Thus, it is possible to provide a plate-shaped battery charger that can always maintain a stable contact even by rotation of the plug.

Further, by forming the electrode contact portion of the rotating shaft of the plug as a quadrangular prism having a rectangular cross section, even when the exposed electrode is inserted into the outlet at a position of 90 ° or 180 ° with respect to the charger main body. It has the same effect as the lock mechanism that can hold the posture of the charger with respect to the wall surface.

[Brief description of the drawings]

FIG. 1 is a side view of a plate battery charger.

FIG. 2 is a perspective explanatory view showing a state in which the plug of the present invention is incorporated in a main body of the plate-shaped battery storage case and a back cover is removed.

FIG. 3 is a plan view and a side view of the plug of the present invention.

FIG. 4 is an explanatory perspective view of the conductive contact of the present invention.

FIG. 5 is a side view showing a state in which the plug of the present invention is incorporated in the main body of the plate-shaped battery storage case.

FIG. 6 is an explanatory perspective view of a plate battery.

FIG. 7 is a perspective explanatory view showing a state where a conventional plug is incorporated in a plate-shaped battery storage case.

FIG. 8 is a perspective explanatory view showing a state where a conventional plug is incorporated in a plate-shaped battery storage case and a back cover is removed.

FIG. 9 is a plan view of a conventional plug.

FIG. 10 is a partial plan view showing a contact state between a conventional plug and a connection terminal.

FIG. 11 is an explanatory side view of a conventional plate battery charger.

[Description of Signs] 1 Plate Battery Charger 2 Plate Battery Storage Case 3 Plug 4 Main Body 5 Lid 6 Plate Battery Storage Unit Main Body 7 Back Cover 8 Exposed Electrode 9 Hinge 11 Rotation Axis 11a Rotation Axis 11b Electrode Contact Part DESCRIPTION OF SYMBOLS 12 Resin mold 13 Depression 14 Bearing part 15 Conductive contact 16 Plug storage frame 17 Bearing sesame 100 Plate battery 103 Plug 108 Exposed electrode 110 Plate battery storage case 111 Sliding washer 112 Resin mold 115 Plug connection terminal 116 Plug storage frame 119 Connection terminal hole 120 Neck

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tsutomu Ogata 1-6-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) References JP-A 1-157069 (JP, A) JP-A Heisei 5-144502 (JP, A) Japanese Utility Model Hei 3-2569 (JP, U) Japanese Utility Model Application 58-8878 (JP, U) Japanese Utility Model Utility Model 5-88151 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) H01R 13/46 302 H01M 10/46 101 H02J 7/00 301

Claims (2)

(57) [Scope of request for utility model registration] 1. A plug of a plate-shaped battery charger having a plate-shaped battery storage case having a main body capable of containing a plate-shaped battery and a lid, wherein the plug is located near a periphery of the main body of the plate-shaped battery storage case. The plug is rotatably mounted at an angle of 180 ° between a protruding position protruding outside the plate-shaped battery storage case and a storage position stored in the recess of the plate-shaped battery storage case. A plug having an exposed electrode that can be inserted into the main body, a conductive rotating shaft fixed to a rotating fulcrum portion of the exposed electrode and extending laterally, and a bearing provided on the main body and supporting the rotating shaft And a resiliently deformable conductive contact that is attached to the main body and that is in contact with the rotating shaft extending from the bearing portion by forming a contact pressure by a spring force. Characteristic plate battery Electric plug. 2. The plug according to claim 1, wherein a cross section of the rotating shaft is a polygon having a shape of a quadrangle or more.