JP2741183B2 - Rechargeable small electric equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small electric device having a built-in rechargeable battery, and takes measures to recover the rechargeable battery.

[0002]

2. Description of the Related Art In recent years, rechargeable batteries have become mainstream power sources for small electric devices such as rechargeable electric razors, because they can be used repeatedly unlike dry batteries.
-Since rechargeable batteries such as Cd batteries use harmful substances such as cadmium, discarding the entire device anywhere is not preferable for preventing pollution. Therefore, it is necessary to collect the rechargeable battery from the inside of the device for disposal.

[0003]

However, unlike rechargeable batteries, rechargeable batteries cannot be easily removed from equipment. That is, as the storage form of the rechargeable battery in the device, it is conceivable to use a contact terminal plate such as a coil spring or a leaf spring as in the case of the dry battery, but in such a case, the contact resistance with the contact terminal plate increases with time, The characteristic of the rechargeable battery that a large current can be taken out cannot be exhibited. Therefore, the rechargeable battery must be securely connected and fixed to the circuit in the device by soldering or the like. In such a mounted state of the rechargeable battery, the rechargeable battery cannot be taken out of the device unless the soldered portion is removed or the lead piece is cut with a blade or the like. In particular, in the case where the rechargeable battery is taken out by an actual general user instead of a service person of the device, it has been extremely difficult because there is no special removal jig. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and has as its object to facilitate removal of a rechargeable battery, thereby contributing to facilitation of the collection operation.

[0004]

In order to achieve the above object, in a small-sized rechargeable electric device according to the present invention, a rechargeable battery 5 is connected and fixed to at least a terminal of the rechargeable battery 5 in a main body case 1.
By cutting off the peripheral parts of the lead pieces 9 and 10
The wiring board 4 which is detachably mounted and held is built in,
Some of the main body case 1, the opposite to the rechargeable battery 5
Forming a rechargeable battery outlet 11 over multiple surfaces of the body case 1
Then, the rechargeable battery outlet 11 is closed by the corresponding opening / closing lid 12.
The finger insertion knobs S1 and S are opened and closed by opening and closing the open / close lid 12 on both front and back sides of the wiring board 4 facing the rechargeable battery outlet 11.
2 is provided.

[0005]

The rechargeable battery outlet 11 is removed by removing the opening / closing lid 12.
When the rechargeable battery 5 is taken out from the outlet 11, at least the connection portion between the wiring board 4 and the rechargeable battery 5 side is required .
The rechargeable battery 5 can be detached from the wiring board 4 by breaking and breaking a portion around the lead pieces 9 and 10 of the rechargeable battery 5. At that time, the battery outlet 11 is charged
Formed over multiple surfaces of main body case 1 facing pond 5
In addition, since the finger insertion knob spaces S1 and S2 are provided on both front and back sides of the wiring board 4 ,
A place near the rechargeable battery on the wiring board 4 through the rechargeable battery outlet 11
Hold the fixed location or the rechargeable battery
In addition, a destructive force can be applied to the upper and lower portions, and the connection portion between the two can be easily separated to facilitate removal.

[0006]

【Example】

(First Embodiment) FIGS. 1 to 4 show an embodiment in which the present invention is applied to a rechargeable electric shaver. In FIG. 2, a rectangular main body case 1 of an electric razor is formed by integrally connecting front and rear half cases 1a and 1b with screws or the like, and a razor blade unit 2 is charged on an upper portion thereof and a bottom portion thereof is charged. Power supply pins 3 are provided. A motor for driving a razor blade (not shown) is provided inside the main body case 1.
And the wiring board 4 and the like. The wiring board 4 includes a rechargeable battery 5 such as a Ni-Cd battery, and a transformer 6
And so on. A rechargeable battery outlet 11 is opened in a part of the main body case 1 over three front, side and rear surfaces of the case 1, and an opening / closing lid 12 having a U-shaped cross section is detachably attached to the outlet 11. . The rechargeable battery 5 on the wiring board 4 is disposed so as to face the rechargeable battery outlet 11. The negative and positive bipolar terminals 7 and 8 of the rechargeable battery 5 are connected and fixed to lead pieces 9 and 10 on the wiring board 4 by soldering or the like.

A region on the wiring substrate 4 that surrounds the periphery of the rechargeable battery 5, that is, a region including a portion corresponding to immediately below the rechargeable battery 5 and a portion around the connection portion between the lead pieces 9 and 10 of the terminals 7.8. A break-off line 13 is inserted in the portion 4a. As a result, the area 4a of the wiring board 4 is broken along the fold line 13 so that the rechargeable battery 5 is connected to the lead pieces 9 and 10.
The connection portion with the wiring board 4 can be completely removed from the wiring board 4. In addition, a knob 14 is provided in the foldable region 4a of the wiring board 4 so as to protrude from the side edge E of the substrate 4 so that the region 4a can be easily gripped and folded. This makes it easier to perform the destruction operation. That is, by providing the knob portion 14 so as to protrude from the side edge E of the wiring board 4, the knob portion 14 extends over a plurality of surfaces (three surfaces).
As shown in FIG. 1, finger-holding spaces S1 and S1 are inserted through the rechargeable battery outlet 11 opened on both sides of the knob portion 14 as shown in FIG.
2 are formed. Therefore, the finger insertion space S1.
Since a finger can be inserted into S2 and the knob 14 can be picked directly from both front and back sides and moved up and down, the breaking and breaking operation can be easily performed.

FIGS. 1 and 3
A groove 15 having a V-shaped cross section is inserted into the wiring board 4 as shown in FIG. 4 to reduce the thickness of the wiring board 4, or a small elongated hole or round hole 1 penetrating in the thickness direction as shown in FIG.
6 are provided side by side. In this case, as shown in FIG. 3, notches 17 and 17 are provided at the base of the knob portion 14 with the substrate 4 and a small hole 18 is provided at a connecting portion between the grooves 15 which are orthogonal to each other. Holding the part 14 by hand
By bending in the direction of arrow A, the cuts 17
, And it becomes easier to break off along the breaking line 13.

(Second Embodiment) FIGS. 5 and 6 show a second embodiment of the present invention. In this embodiment, the connection portion of the snapping lines 13 and handle portion 14 and the Yin Ryokyokutanko 7, 8 of the rechargeable battery 5 in the wiring board 4
Provided only at the peripheral portions 4b, 4b of certain lead pieces 9, 10, the peripheral portions 4b of the connection portion with the cathode terminal 7,
The peripheral portion 4b of the connection portion with the anode terminal 8 can be folded separately. In the case of this configuration, the rechargeable battery 5 can be removed not only by manually breaking the wiring board 4 by hand as in the above-described embodiment, but also between the portions 4b and 4b on the board 4 as shown in FIG. Since the pattern P can be formed also on the back side of the portion corresponding to the position directly below the rechargeable battery 5, the pattern P at this portion can be used effectively, and the pattern P becomes an obstacle when the rechargeable battery 5 is removed. Nothing.

(Third Embodiment) FIGS. 7 and 8 show a third embodiment of the present invention. In this embodiment, the negative and positive bipolar terminals 7 of the rechargeable battery 5 of the wiring board 4 are used.
.4b around the lead pieces 9 and 10 , which is the connection part with 8
A break line 13 is provided in each of the portions 4b, and a cutout portion 20 is provided immediately below the rechargeable battery 5 between the portions 4b. As shown in FIG. 8, in this embodiment also, the finger-inserting and holding space S is provided on both the front and back sides of the wiring board 4.
1 · S2 is formed. In the case of such a configuration, since the finger insertion knob space S2 on the rear surface side is formed wider by the cutout portion 20, the rechargeable battery 5 is directly grasped by a finger even in a narrow space in the main body case 1 and the substrate 4 Of the connecting portion with the bipolar terminals 7 and 8 can easily be cut off.

(Fourth Embodiment) FIGS. 9 and 10 show a fourth embodiment of the present invention. In this embodiment, the wiring board 4
The mounting form of the rechargeable battery 5 is different from each of the above-described embodiments, and a notch 19 is provided on one side edge E of the wiring board 4, and the rechargeable battery 5 has upper and lower peripheral surfaces thereof in the notch 19. Spaces S1 and S for finger placement above and below upper and lower portions of the peripheral surface of rechargeable battery 5 are accommodated so as to protrude from both front and back surfaces of wiring board 4.
2 are formed (see FIG. 10), and the peripheral portions 4b of the connecting portions of the bipolar terminals 7, 8 with the lead pieces 9, 10.
In FIG. 4B, a break-off line 13 is inserted. In the case of such a configuration, similarly to the case of the third embodiment, the rechargeable battery 5 is grasped with a finger, and the peripheral portions 4b and 4b of the connection portion with the bipolar terminals 7 and 8 of the wiring board 4 are connected to the breaking line 13. Can be cut along. The portion of the connection portion that is broken off is set smaller than in the first embodiment and the second and third embodiments, and this portion is small in order to recover the rechargeable battery 5 itself. Needless to say, in any case, it is only necessary to break and separate between the rechargeable battery 5 and the wiring board 4.

(Other Embodiments) It is needless to say that the present invention can be applied to not only one rechargeable battery 5 mounted on the wiring board 4 but also two or more rechargeable batteries.

[0013]

According to the present invention, the rechargeable small-sized electric device is a rechargeable battery.
On both front and back sides of the wiring board 4 facing the rechargeable battery outlet 11 extending over a plurality of surfaces of the main body case facing the front side 5, a finger insertion knob space S 1.
S2 was provided. Therefore, the finger insertion space S1
-The front and back of the wiring board 4 or the rechargeable battery 5 itself via S2
Can be picked up directly from both sides to apply vertical destructive force.
In this case, the connection portion between the wiring board 4 and the rechargeable battery 5 is broken to make it easier to take out, and the work of collecting the rechargeable battery 5 from the device can be easily performed.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an electric shaver according to a first embodiment.

FIG. 2 is a perspective view showing the electric shaver of the first embodiment with its opening / closing lid removed.

FIG. 3 is a plan view of a part of the wiring board according to the first embodiment;

FIG. 4 is a plan view of a modified example corresponding to FIG.

FIG. 5 is a perspective view of a part of a wiring board according to a second embodiment.

FIG. 6 is a rear view of a part of the wiring board according to the second embodiment;

FIG. 7 is a perspective view of a part of a wiring board according to a third embodiment.

FIG. 8 is a sectional view of a part of a wiring board according to a third embodiment.

FIG. 9 is a perspective view of a part of a wiring board according to a fourth embodiment.

FIG. 10 is a sectional view of a part of a wiring board according to a fourth embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 4 Wiring board 5 Rechargeable battery 11 Rechargeable battery outlet 12 Opening / closing lid 13 Breaking wire S1 ・ S2 Finger insertion space

Claims (1)

(57) [Claims] 1. A rechargeable battery 5 is provided in a main body case 1 at least.
Of the lead pieces 9 and 10 connected and fixed to the terminals of the rechargeable battery 5
And that the wiring board 4 which is removably tower mounting the holding is built in to break off the peripheral portion, a portion of the main body case 1, opposite to the rechargeable battery 5 present
Forming a rechargeable battery outlet 11 over multiple surfaces of the body case 1
Then, the rechargeable battery outlet 11 is closed by the corresponding opening / closing lid 12.
In addition to the openable and closable closure, finger insertion knob spaces S1 and S2 are provided on both front and back sides of the wiring board 4 facing the rechargeable battery outlet 11 when the openable cover 12 is opened. Characteristic rechargeable small electric equipment.