JP2729776B2 - 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, unlike dry batteries, have become mainstream power sources for small electric devices such as rechargeable electric razors, in order to enable repeated use.
Since rechargeable batteries such as Ni-Cd batteries use harmful substances such as cadmium, it is not preferable to dispose the entire device anywhere with respect to pollution prevention. Therefore, when disposing of the battery, it is necessary to collect the rechargeable battery from the device.

[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 wiring board in the device by soldering or the like. In order to remove the rechargeable battery from the mounted state, the soldered portion of the rechargeable battery is removed or the lead piece is cut with a blade or the like. Since it is mounted close to other electronic components, it is not easy to take it out. In particular, in the case where the removal of the rechargeable battery is performed by an actual general user rather than by a service person of the device, it has been extremely difficult since no special removal jig is provided.

[0004] Therefore, the present invention aims to simplify the removal of the rechargeable battery by improving the mounting form of the rechargeable battery on the wiring board in the electric equipment, thereby contributing to the facilitation of the collection operation. Aim.

[0005]

In order to achieve the above object, in a rechargeable small-sized electric device according to the present invention, a wiring board 4 is housed inside a main body case 1, and
Charging the battery 5, in parallel to the horizontal mounting state and the circuit board 4, and
Seesaw with support 7 arranged on wiring board 4 as a fulcrum
By swinging, the terminal connection of the rechargeable battery 5 with the wiring board 4 is made.
The connecting portion is detachably mounted on the main body case 1 at least on the rechargeable battery 5 on the wiring board 4.
The rechargeable battery 5 over its entire length in the longitudinal direction.
Outlet 13 preparative battery exposing stand is provided, the charge
An open / close lid 14 is detachably attached to the pond outlet 13 .

[0006]

When collecting the rechargeable battery, the rechargeable battery is disposed.
When removing from the wiring board 4, simply touch the fingertip on the wiring board 4.
To press the longitudinal end of the rechargeable battery 5 and swing the seesaw
This makes it easier to connect the terminal of the rechargeable battery 5 to the wiring board 4.
Can be separated. When collecting the rechargeable battery 5, the main body
Remove the open / close lid 14 without disassembling the entire case 1.
Just remove it and the rechargeable battery 5 will be
It will be exposed over the entire length in the direction. For this reason,
By inserting a finger into the battery outlet 13, the length of the
The seesaw swing operation of pressing the direction end and
The separation operation from the wiring board 4 can be easily performed, and
Easy removal of the rechargeable battery 5 through the rechargeable battery outlet 13
I can do it.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIGS. 1 to 6 show one 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 provided at an upper portion thereof and a bottom portion thereof is provided. The charging plug 3 is provided with a retractable operation. A razor blade driving motor (not shown), a wiring board 4 and the like are housed and arranged inside the main body case 1. The wiring board 4
Is mounted with a rechargeable battery 5 such as a Ni-Cd battery, and a transformer 6 and the like. In this case, the rechargeable battery 5 is arranged near one end of the wiring board 4 so that the rechargeable battery 5 is In addition to making it easy to grasp without being disturbed by other electronic components, other electronic components such as the transformer 6 can be mounted without being disturbed by the rechargeable battery 5. Body case 1
A rechargeable battery outlet 13 is opened in two parts of the front and side surfaces of the main body case 1, and an opening / closing lid 14 having an L-shaped cross section is detachably attached to the outlet 13. As shown in FIGS. 2 and 4, the rechargeable battery 5 on the wiring board 4 is exposed to the rechargeable battery outlet 13 over the entire length in the longitudinal direction , and more than half of the cross section of the rechargeable battery 5 is the main body case 1. Is provided so as to be exposed from the opening edge 13a of the rechargeable battery outlet 13 formed on the side surface of the battery. Therefore, when the opening / closing lid 14 is removed, the wiring base is
The rechargeable battery 5 on the plate 4 is exposed over its entire length in the longitudinal direction.
However, more than half of the cross section of the rechargeable battery 5 can be easily grasped without being obstructed by the opening edge 13a of the rechargeable battery outlet 13.

[0008] The rechargeable battery 5 is positioned on one end of the wiring board 4.
Is mounted on a support 7 whose center in the longitudinal direction is fitted and fixed in a hole of the board 4, and both ends thereof are floated from the wiring board 4. In addition, the rechargeable battery 5 has the negative and positive bipolar terminals 8 and 9 connected and fixed to the lead members 10 and 11 on the wiring board 4 by soldering or the like, and is normally held on the support 7 in a horizontal posture. Battery holding protrusions 15
Is provided, and when the opening / closing lid 14 is closed, the protruding portions 15, 15 press down on the peripheral surface of the rechargeable battery 5 at positions located on both sides of the support base 7, so that the rechargeable battery 5 can be easily placed in the main body case 1. I try not to wobble.

In FIG. 4, the lead members 10 and 11 are provided with a constricted portion 12 and the like in the middle to form a dangerous cross section. The dangerous cross section is located on the open / close lid 14 as shown in FIG.
Is opened, the rechargeable battery 5 is swung back and forth with the support base 7 as a fulcrum by finger pressure, and when a tensile load is applied, the rechargeable battery 5 is set to be broken by stress concentration. At that time, open / close lid 14
When opened, the rechargeable battery 5 is
Since it is exposed over the entire length in the longitudinal direction, the
Saw swing operation and separation operation from the wiring board 4 are easy.
I can do it.

As the lead materials 10 and 11, thin plate pieces,
Although a foil piece or a thin wire such as a copper wire is used, a copper foil (thickness of 35 μm) is particularly preferable because it can be easily cut with the seesaw swing of the rechargeable battery 5. As means for forming the lead members 10 and 11 in a dangerous cross section, a perforation 16 is formed in the middle of the lead members 10 and 11 as shown in FIG. Alternatively, as shown in FIG. 6, a groove 17 for reducing the plate thickness may be formed.

(Second Embodiment) FIGS. 7 and 8 show a second embodiment of the present invention. This embodiment is the same as the first embodiment in that the center of the rechargeable battery 5 on the wiring board 4 is mounted on the support base 7 and both ends are alternately swingable back and forth. However, due to the swing of the seesaw, the connection portion 18a of the pattern 18 on the wiring board 4 with the lead materials 10 and 11 is formed.
Is torn apart. In the connecting portion 18a of the pattern 18, small holes 19 are annularly arranged around the entire circumference of the connecting portion 18a so that this cutting can be surely performed. In addition, as shown in FIG. 7, the number of the support bases 7 may be two or more. In this embodiment, FIG.
As shown in FIG. 1, the rechargeable battery outlet 13 formed on the side surface of the main body case 1 exposes the rechargeable battery 5 over its entire length in the longitudinal direction.
As well as out, its open edge 13a is formed to a depth that is lower than the wiring board 4, which seesaw rocking so as to expose the entire battery 5 from its opening edge 13a Te than
It is easy to move and easy to grasp.

(Third Embodiment) FIG. 9 shows a third embodiment of the present invention. This embodiment is different from the case of the first embodiment in that the center of the rechargeable battery 5 on the wiring board 4 is mounted on the support base 7 and both ends are mounted so that the seesaw can be swung alternately by the finger load. However, the difference is that the connection portion 4a of the wiring board 4 with the lead members 10 and 11 is torn off as the seesaw swings. The connecting portion 4a of the substrate 4 is provided with a notch 20 all around the connecting portion 4a so that the cutting can be performed reliably and easily. The support 7 may be welded to the substrate 4 or may be formed by outsert molding. The point that the entire rechargeable battery 5 is exposed from the opening edge 13a of the rechargeable battery outlet 13 is the same as in the second embodiment.

(Fourth Embodiment) FIGS. 10 to 12 show a fourth embodiment of the present invention. In this embodiment, the support 7 is formed in a ring shape, and two of them are passed through the rechargeable battery 5 and mounted on the wiring board 4. The terminals 8 and 9 at both ends of the rechargeable battery 5 are connected to the lead members 10 and 11 on the wiring board 4 by soldering or the like, as in the above-described embodiment. Normally, as shown in FIG.
Are arranged on the rechargeable battery 5 with an increased distance between them, and the support base detents 21.
At 21, the movement of the supports 7 is stopped. Therefore,
The support 7 in this case also has a function of preventing the rechargeable battery 5 from rattling in the main body case 1. At the time of removing the rechargeable battery 5, the open / close lid 14 is removed as shown in FIG. The point that the entire rechargeable battery 5 is exposed from the opening edge 13a of the rechargeable battery outlet 13 is the same as in the second and third embodiments.

(Fifth Embodiment) FIGS. 13 and 14 show a fifth embodiment of the present invention. In this embodiment, openings 22 are formed at locations corresponding to both sides of the support 7 on the wiring board 4, and both ends of the rechargeable battery 5 are oscillated in the opening 22 with the support 7 as a fulcrum. Shall move. Then, the terminals 8 and 9 of the rechargeable battery 5 and the lead materials 10 and 11 accompany the swing of the seesaw.
And the spot welded portion can be peeled off. According to this, since the height of the support base 7 can be made as low as possible by opening the opening 22, the thickness of the main body case 1 can be reduced. In this case, if a rectangular thin battery is used as the rechargeable battery 5, the main body case 1 can be further thinned. Also in this embodiment, the entire rechargeable battery 5 is exposed from the opening edge 13a of the rechargeable battery outlet 13, so that the rechargeable battery 5 can be easily rocked by a seesaw and easily grasped.

(Sixth Embodiment) FIGS. 15 and 16 show a sixth embodiment of the present invention. In this embodiment, the wiring board 4
The opening 23 is provided at a position directly below the rechargeable battery 5, while the support 7 supporting the center of the rechargeable battery 5 is provided so as to protrude from the inner wall of the main body case 1 into the opening 23. is there. In addition, on the peripheral surface of the rechargeable battery 5, the battery holding projection 24 provided on the inner surface of the opening / closing lid 14 is used to prevent rattling.
Thus, as shown in FIG. 16, when the rechargeable battery 5 is rocked on the seesaw with the support 7 as a fulcrum, the terminals 8 and 9 of the rechargeable battery 5
The same as in the fifth embodiment in that the spot welds between the lead members 10 and 11 are peeled off.

[0016] (Other Embodiments) The present invention is not rechargeable battery 5 mounted on the wiring board 4 only one, it is naturally applicable similarly be two or more.

[0017]

According to the present invention , the rechargeable battery 5 can be recovered.
When removing the rechargeable battery 5 from the wiring board 4,
Simply press the end of the rechargeable battery 5 in the longitudinal direction with a fingertip on the wire substrate 4
And swing the seesaw with the support 7 as a fulcrum.
The rechargeable battery 5 can be operated in a simple operation without using a tool such as a blade.
The terminal connection part with the wiring board 4 can be easily separated,
These batteries 5 can be easily collected. Also, charge the battery
The outlet 13 is provided so that the rechargeable battery 5 on the wiring board 4
Since it is provided so as to be exposed over a long
4 and remove the rechargeable battery
Seesaw swing operation of rechargeable battery 5 and wiring board 4
Separation operation can be easily performed, and removal of rechargeable battery 5 after separation
The advantage that it can be easily performed through the rechargeable battery outlet 13
There is.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cut-off state of a terminal connection portion of a rechargeable battery in 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 vertical sectional front view of a main part of the electric shaver of the first embodiment.

FIG. 4 is a partially cutaway bottom view of the electric shaver of the first embodiment.

FIG. 5 is a perspective view showing a modified example of the lead material of the rechargeable battery of the first embodiment.

FIG. 6 is a perspective view showing still another modification of the lead material of the rechargeable battery of the first embodiment.

FIG. 7 is a longitudinal sectional side view of a main part of an electric shaver according to a second embodiment.

FIG. 8 is a plan view of a part of a wiring board according to a second embodiment.

FIG. 9 is a vertical sectional side view of a wiring board according to a third embodiment.

FIG. 10 is a perspective view of a main part of an electric shaver according to a fourth embodiment.

FIG. 11 is a longitudinal sectional side view of a main part of an electric shaver according to a fourth embodiment.

FIG. 12 is a perspective view showing a cutting procedure of a terminal connecting portion of the rechargeable battery of the fourth embodiment.

FIG. 13 is a perspective view of a main part of an electric shaver according to a fifth embodiment.

FIG. 14 is a sectional view showing a state in which a rechargeable battery according to a fifth embodiment is removed.

FIG. 15 is a longitudinal sectional side view of a main part of an electric shaver according to a sixth embodiment.

FIG. 16 is a vertical sectional side view showing a detached state of the rechargeable battery of the sixth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 4 Wiring board 5 Rechargeable battery 13 Rechargeable battery outlet 13a Opening edge

Claims (1)

(57) [Claims] [Claim 1] A housed inside the wiring board 4 of the main body case 1, a charging battery 5 on the wiring board 4, with parallel horizontal mounting state and the circuit board 4, and disposed on the wiring board 4 Supporting point 7
And swinging the seesaw, the wiring base of the rechargeable battery 5
The terminal connection part with the board 4 is detachably mounted so as to be detached , and at least the charging of the main body case 1 on the wiring board 4 is performed.
Place the rechargeable battery 5 on the surface facing the upper part of the pond 5 in its longitudinal direction.
A rechargeable battery outlet 13 that is exposed over the entire length is provided , and an opening / closing lid 14 is detachably attached to the rechargeable battery outlet 13.
A small rechargeable electric device characterized by being attached .