JPS6314995B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hand-held device such as a facial beauty device or an electric razor, which uses a battery as a power source.

In general, such battery devices use a cylindrical grip as a battery housing case to house the batteries, but when the device is held in the hand, the device shakes, causing the batteries housed inside to wobble, making it inconvenient to use. In conventional battery appliances, protrusions are formed on the inner wall of the battery housing case to reduce the gap between the inner wall and the outer periphery of the battery to prevent the battery from rattling.

However, even batteries with the same specifications vary in their outer diameter, and if the height of the front protruding strip is increased to match a small-diameter battery, the battery storage space becomes smaller, making it impossible to insert a large-diameter battery. On the other hand, if the height of the protrusion is lowered in accordance with larger diameter batteries, all the batteries can be accommodated, but there is a problem in that small diameter batteries tend to wobble more.

The present invention was made in view of such problems,
The purpose is to provide a battery device that has improved usability by reducing rattling within the battery storage case.

Embodiments of the present invention will be described below based on drawings showing an example of a facial beauty device.

1 is the main body case, motor 2, reduction gear 3,
4 and a drive shaft 5, and a battery housing case 8 that houses a battery 7. A movable brush 9 is attached to the tip of the drive shaft 5, and a fixed brush 10 fixed to the driver housing case 6 is disposed around the outer periphery of the movable brush 9. A fitting cylindrical part 11 having a thread formed on the outer peripheral surface is provided at the lower end of the driver housing case 6, and a terminal fitting 13 having a cylindrical shape and having a flange part 12 formed at the lower end is provided in the fitting cylindrical part 11.
is mounted so that the collar portion 12 is in contact with the lower end surface of the fitting cylinder portion 11, and the terminal fitting 13 is connected to the cathode side input of the motor 2 via a printed circuit board 14. Further, the battery housing case 8 has a bottomed cylindrical shape with an opening at one end, and a screw is formed on the inner circumferential surface of the opening so that it can be detachably attached to the fitting cylindrical part 11 of the driver housing case 6. In addition, two batteries 7 can be housed in series, and the fitting portion is sealed with a sealing member 23. Further, a battery spring 15 is disposed at the bottom of the battery housing case 8, and a current-carrying metal fitting 16 is provided along the inner wall of the battery housing case 8, and the middle part thereof is formed into a substantially dogleg shape. One end of the current-carrying metal fitting 16 is connected to the battery spring 15 and supported at the bottom of the battery housing case 8, and the other end extends in the circumferential direction along the inner wall of the battery housing case 8 and has a protruding tip at its tip. Contact piece 1 forming part 17
There are 8. Further, the battery housing case 12
A plurality of rows of protrusions 19 for holding batteries are formed in the circumferential direction on the inner wall, and protrusions 2 for holding a current-carrying metal fitting are formed.
0, 21, and a protrusion 22 formed at the upper end of the protruding rib 20 prevents the current-carrying metal fitting 16 from falling inside the case.
1 supports the current-carrying metal fitting 16 so that it does not fall in the circumferential direction.

When the batteries 7, 7 are housed in series as shown in FIG. 4, the current-carrying metal fitting 16 is placed in a circular area (indicated by a dashed-dotted line D) connecting each protrusion 19, as shown in FIG. Since the current-carrying metal fitting 16 is located at the center side of the battery 7, the current-carrying metal fitting 16 does not come into contact with the battery 7, so that the current-carrying metal fitting 16 is not deformed by the battery 7 when the battery 7 is inserted. Further, when the battery housing case 8 and the driver housing case 6 are fitted together as shown in FIG. 14 to the anode side input of the motor 2, and the cathode of the battery 7 is connected to the cathode side input of the motor 2 via the battery spring 15, the current-carrying fitting 16, the terminal fitting 13, and the printed circuit board 14. When turned on, the motor 2 rotates, which is transmitted to the drive shaft 5 via the reduction gears 3 and 4 to rotate the movable brush 9. Further, when the battery housing case 8 and the driver housing case 6 are fitted together, the terminal metal fitting 13 comes into contact with the contact piece 18 of the current-carrying metal fitting 16 and presses the current-carrying metal fitting 16 downward, thereby energizing the metal fitting 16. As shown in FIG.
It protrudes toward the center beyond the circular area connecting the points 9 (indicated by the dashed line B) and comes into pressure contact with the outer periphery of the battery 7.

In the above embodiment, one current-carrying metal fitting is provided, but the present invention is not limited to this, and as shown in FIG. Good too.

As described above, in the present invention, one end of the current-carrying metal fitting is pressed with the terminal fitting provided in the driver housing case which is detachably attached to the opening at one end of the battery housing part, and the intermediate part thereof is protruded inwardly, and the terminal fitting is attached to the outer periphery of the battery. Since the battery is in pressure contact, when inserting or removing the battery by removing the driver housing case, no external force is applied to the battery, making it easy to replace the battery. When the battery is in use, the battery is pressed against the side wall by the current-carrying metal fittings, reducing rattling, improving usability and stabilizing the contact connection state of the battery.

[Brief explanation of the drawing]

1 to 6 show a facial beauty device according to an embodiment of the present invention, FIG. 1 is an external perspective view, FIG. 2 is a sectional view,
Figure 3 is a sectional view taken along line AA in Figure 2, Figure 4 is a sectional view with the battery housing case removed, Figure 5 is a sectional view taken along CC in Figure 4, and Figure 6 shows the brush removed. The omitted exploded perspective view and FIG. 7 are main part sectional views showing a different embodiment. 1...Main body case, 6...Drive unit housing case, 7...
Battery, 8...Battery storage case, 13...Terminal fitting, 1
6...Electricity fitting, 19...Protrusion.

Claims (1)

[Claims] 1. A main body case is constituted by a driver housing case and a battery housing case, one pole of the battery is connected to the anode of the driver, and the other pole of the battery is connected along the inner wall of the battery housing part. In a battery device connected to the cathode of a driver via a current-carrying metal fitting arranged in the same direction, the battery housing case has a bottomed cylindrical shape with an opening at one end, and the driver housing is detachably provided in the opening. A driving body is housed in a case, and a terminal fitting is provided at an end of the driving body housing case to be connected to a cathode of the driving body and to be in contact with a current-carrying metal fitting, and one end of the current-carrying metal fitting is supported at a bottom of the battery accommodating portion. A battery device characterized in that the other end is pressed by the terminal metal fitting, and the intermediate portion thereof protrudes approximately toward the center so as to come into pressure contact with the outer periphery of the battery. 2. The battery device according to claim 1, wherein the current-carrying metal fitting is made of a leaf spring, and the intermediate portion thereof is formed into a substantially dogleg shape. 3. The battery accommodating part is a cylindrical body with a circular cross section, and a plurality of rows of protrusions are formed in the circumferential direction of the inner wall thereof, and the middle part of the current-carrying metal fitting protrudes and retracts approximately toward the center from the area connecting the tips of the respective protrusions. 2. The battery device according to claim 1, wherein the battery device is flexible.