JPH09320642A - Battery pack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery pack from which faces having common thickness for its fixation are eliminated by forming two types of fitting recessed parts having different standard faces in a charger fitting face of battery packs and fitting battery packs with different thickness in a desk charger and an on-vehicle charger. SOLUTION: This battery pack is for portable radio equipment chargeable by two kinds of chargers having different fitting method based on the thickness of battery pack and in the charger fitting face of the battery pack, two kinds of recessed parts for fitting are formed. Of recessed parts for fitting in battery packs a, b having different thickness, the recessed part 1 for desk type charger exists at a prescribed position from the back sides 11, 21 of the battery packs a, b and the recessed part 2 for fitting on-vehicle charger exists at a prescribed position from the fitting face of a portable radio equipment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack, and more particularly to a battery pack having a structure that can be charged by two types of chargers having different fitting methods depending on the thickness.

[0002]

2. Description of the Related Art A conventional battery pack for a portable wireless device can be charged depending on a condition in which the portable wireless device is fitted and a battery pack is a single item, and the battery pack is positioned on the back surface of the battery pack by contacting a charger. When using a desktop charger with a structure and a vehicle-mounted charger that can be charged in a fitted state with the wireless device main body and the wireless device main body and the charger are locked, charge battery packs of different thickness Since it is necessary to provide a back surface of the battery pack with a common thickness, the external shape of the battery pack is limited.

FIG. 5 is a perspective view showing an embodiment of a conventional battery pack of this type. FIG. 5 (a) shows a battery pack 30 having a small thickness dimension, and FIG. 5 (b) shows a thickness. A large-sized battery pack 40 is shown. A charger fitting recess 3 is provided on the charger fitting surface of these battery packs, and a charging terminal 4 is provided on the same surface as the fitting recess 3. Further, the back surface 41 of the battery pack 40 is provided with a back surface 42 having the same thickness dimension as the back surface 31 of the battery pack 30.

FIG. 6 is a cross-sectional view showing an embodiment of a conventional battery pack and a desktop charger fitted together, in which a battery pack 30, 40 is fitted in a desktop charger case 50.
At this time, the battery pack is positioned with respect to the desktop charger by the back surfaces 31 and 41, and the battery pack 40 has a stable fitting state with the desktop charger case 50.
The battery pack 30 needs a back surface 42 that has a common thickness with the battery pack 30, and the charger has a convex portion 52 for supporting the back surface 42 and a battery pack fitting convex portion that fits in the charger fitting concave portion 3. Part 51 is required.

FIG. 7 is a cross-sectional view showing an example of a conventional battery pack and a vehicle-mounted charger fitted together. The battery packs 30 and 40 mounted on the portable wireless device 70 are fitted together. Has been done. At this time, the portable wireless device 70 and the vehicle-mounted charger case 60 are structured to be locked.

FIG. 8 is a view showing the position of the recess 3 for fitting the charger in the battery packs 30, 40. The fitting recess 3 of the battery pack 30 and the fitting recess 3 of the battery pack 40 are both located at a fixed position from the fitting surface with the portable wireless device 70, and the projection 5
It is at a fixed position from the contact surface with 2. This is because the charger fitting recess 3 is commonly used for fitting the desktop charger case 50 and the vehicle-mounted charger case 60, and as a result, the electric packs 30 and 40 have the same thickness dimension. A large back 42 is required.

[0007]

SUMMARY OF THE INVENTION In the conventional method for fitting the battery packs 30 and 40 for portable radios having different thickness dimensions to the desktop charger 50 and the vehicle-mounted charger 60 described above, the battery pack and the charger are attached. In order to fix the battery pack, the back surface 42 having the same thickness dimension of the battery pack is always required, and the external shape is limited.

An object of the present invention is to eliminate the common thickness dimension for fixing the battery pack in a configuration in which battery packs having different thickness dimensions are fitted to a desktop charger and a vehicle-mounted charger, and to improve the appearance shape. It is to provide a structure that is not restricted.

[0009]

The battery pack of the present invention comprises:
For both the desktop charger and the in-vehicle charger Is provided with another recess for fitting the charger.

More specifically, in battery packs having different thicknesses, the first charger fitted to the battery pack fitting convex portion of the desktop charger and having the same distance from the back surface of the battery pack in contact with the charger. The fitting recess has a second charger fitting recess that is fitted to the battery pack fitting protrusion of the on-vehicle charger and has the same distance from the fitting surface of the portable wireless device body of the battery pack. .

Therefore, in the battery pack of the present invention, the battery pack and the charger can be fixed without providing a common back surface for fixing the battery pack and the charger in the same thickness dimension of the battery pack.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the battery pack of the present invention. 1A shows a battery pack 10 having a small thickness dimension, and FIG. 1B shows a battery pack 20 having a large thickness dimension. The battery charger fitting surface of each of these battery packs is provided with a desktop charger fitting recess 1 and an in-vehicle charger fitting recess 2 separately. The charging terminal 4 is provided on the same surface as the fitting recess 2.

FIG. 2 is a cross-sectional view showing an embodiment in which the battery pack and the desktop charger of the present invention are fitted together, and the battery packs 10 and 20 are fitted in the desktop charger case 50. At this time, the convex portion 51 for fitting the battery pack of the desktop charger
And the desktop charger fitting recess 1 located at the same distance from the back surfaces 11 and 21 of the battery packs 10 and 20 are in a fitted state, and the back surface 11 of the battery pack 10 and the back surface of the battery pack 20. Since 21 is in contact with the desktop charger case 50, the positioning and the fitted state with the desktop charger are stabilized.

FIG. 3 is a cross-sectional view showing an embodiment in which the battery pack of the present invention and the on-vehicle charger are fitted together, and the battery packs 30 and 40 fitted to the portable wireless device 70 are fitted therein. Have been combined. At this time, the battery pack fitting convex portion 61 of the on-vehicle charger and the vehicle battery charger fitting concave portion 2 which is constant for the battery packs 10 and 20 from the fitting surface of the portable wireless device 70 are fitted together. The mobile wireless device 70 and the vehicle-mounted charger case 60 are positioned and locked.

FIG. 4 is a diagram showing the positions of the table charger recess 1 and the vehicle charger fitting recess 2 of the battery packs 10, 20. Recess 1 for fitting of battery pack 10 and battery pack 2
The fitting recess 1 of 0 is at a fixed position from the back surfaces 11 and 21 of the battery packs 10 and 20, and the fitting recess 2 of the battery pack 10 and the fitting recess 2 of the battery pack 20 are both portable wireless devices 70. It is at a fixed position from the mating surface of.

When charging with a desktop charger without a lock mechanism, the fitted state is stabilized by the contact between the charger case and the back surface of the battery pack, but the positioning at that time must be based on the back surface of the battery pack. In the on-vehicle charger, the positioning reference must be the mating surface with the body of the portable wireless device.

[0018]

As described above, in the conventional battery pack, a portion having a common thickness dimension is formed on the back surface of the battery pack and the recess for fitting the charger is commonly used. However, in the battery pack of the present invention, When the battery pack is fitted into the battery pack, the shape of the battery pack becomes large or a common part of the back thickness dimension that may be a design neck is not required, and the external shape can be restricted.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a battery pack of the present invention.

FIG. 2 is a cross-sectional view showing a state in which the battery pack of the present invention is mounted on a desktop charger.

FIG. 3 is a cross-sectional view showing a state where the battery pack of the present invention is mounted on a vehicle-mounted charger.

FIG. 4 is a diagram showing the positions of the table charger fitting recess and the vehicle charger fitting recess of the battery pack of the present invention.

FIG. 5 is a perspective view showing an example of a conventional battery pack.

FIG. 6 is a cross-sectional view showing a state in which a conventional battery pack is mounted on a desk charger.

FIG. 7 is a cross-sectional view showing a state in which a conventional battery pack is mounted on a vehicle-mounted charger.

FIG. 8 is a diagram showing a position of a recess for fitting a charger of a conventional battery pack.

[Explanation of symbols]

 1, 2, 3 Fitting recess 4 Charging terminal 10, 20, 30, 40 Battery pack 11, 21, 31, 41, 42 Back 50 Desktop charger case 51, 61 Fitting projection 52, 62 Projection 60 In-vehicle Charger case 70 Portable radio

Claims (4)

[Claims] 1. A battery pack for a portable wireless device, which has a structure capable of being charged by two types of chargers having different fitting methods depending on the thickness of the battery pack. A battery pack having two different types of fitting recesses. 2. The recess for fitting is located at the same position from the fitting surface of the portable wireless device main body of the battery packs having different thicknesses and at the same position from the back surface of the battery pack which contacts the charger. Battery pack described. 3. The battery pack according to claim 1, wherein the two types of chargers are a desktop charger and a vehicle-mounted charger. 4. In battery packs having different thickness dimensions, a first charger fitting concave portion that fits with a battery pack fitting convex portion of a desktop charger and has the same distance from the back surface of the battery pack that contacts the charger. A battery having a second charger fitting concave portion that is fitted to the battery pack fitting convex portion of the on-vehicle charger and has an equal distance from the fitting surface of the portable wireless device body of the battery pack pack.