JPH11167908A - Battery and battery box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set a cylindrical battery in the correct direction in a battery box. SOLUTION: In a battery 1 having a cylindrical outer case 2 and having a positive terminal and a negative terminal at the ends of the outer case 2, a circular recessed groove 2A along in the circumferential direction of the outer case 2 is formed in a position where the outer circumferential surface of the outer case 2 is and is not the central part in the axial direction of the battery 1, and projections 15A, 15B engaging with the recessed groove 2A are formed within a battery box 11. The battery 1 surely makes setting in a specified direction to the inside of the battery box 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery capable of setting a battery in a correct direction when the battery is set in various devices and the like using a battery as a power source, and a method for using the battery. The present invention relates to a battery box for setting.

[0002]

2. Description of the Related Art Batteries are used as power supplies for various devices such as radios, mobile phones, small tape recorders, and electric shavers. As this type of battery, a cylindrical battery having a positive electrode formed at one end and a negative electrode formed at the other end is generally used. It is prepared.

As described above, when a conventional cylindrical battery is set in a battery box such as a radio, a cellular phone, a small tape recorder, and an electric shaver, the positive and negative poles are distinguished from each other, and the batteries are placed in a designated direction. The batteries are set in the battery box.

[0004]

However, in the conventional cylindrical battery, the positive electrode formed on one end face only slightly protrudes. Therefore, when the battery is set in the battery box, the battery is erroneously inserted. The battery may be set in a wrong orientation, and as a result, one or more batteries may be connected with opposite polarities.

[0005] When the battery is set in the battery box in the wrong direction, a reverse voltage is applied to the device, which causes a malfunction or a malfunction. Furthermore, if only one battery among a plurality of batteries is set in the opposite direction, for example, even if the device operates temporarily, the current flows in the oppositely set battery in the opposite direction. In the case of an alkaline battery, an alkaline liquid leaks out of the battery, which may damage the device or cause burns by adhering to the user's skin and causing accidents.

[0006] It is an object of the present invention to provide an improved battery and battery box that can solve the above-mentioned problems in the prior art.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a cylindrical battery having a positive electrode terminal and a negative electrode terminal provided at both ends, respectively. An annular groove along the circumferential direction of the outer peripheral surface is provided at a position off the center in the direction.

According to a first aspect of the present invention, there is provided a battery comprising a cylindrical outer case and a positive electrode terminal and a negative electrode terminal provided at ends of the outer case. The point is that the groove is provided on the outer peripheral surface of the outer case at a position off the axial center of the battery.

According to a second aspect of the present invention, there is provided a battery box in which the battery according to the first aspect is set, wherein the battery box is located in a space for setting the battery and the concave groove of the battery is to be located. Is provided with a convex portion that engages with the concave groove.

By providing the concave groove in the outer case of the battery as described above, the battery can be set only in a predetermined direction in the battery box by providing a convex portion that engages with the concave groove on the battery case side. Can not do it. As a result, it is possible to reliably prevent the battery from being set in the wrong direction when the user sets the battery.

Since the groove is annular, the battery can be set in the battery box regardless of the circumferential position of the battery as long as the battery is not inserted in the wrong direction.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view showing an example of an embodiment of a battery according to the present invention, and FIG. 2 is a perspective view of the same.

The battery 1 has an outer case 2 having a substantially cylindrical shape as a whole. A positive terminal 3 is provided at one end of the outer case 2, and a negative terminal 4 is provided at the other end of the outer case 2. . Since the internal structure of the battery 1 is basically the same as that of a conventional battery, a detailed description of the internal structure is omitted.

The outer case 2 has an annular groove 2A formed along its circumferential direction. This concave groove 2A is
Is formed at a position deviated from the center in the axial direction. In the present embodiment, the concave groove 2A is formed at a position near the negative electrode terminal 4.

As described above, when the concave groove 2A is formed on the outer peripheral surface of the outer case 2 of the battery 1 as described above, the convex portion engaging with the concave groove 2A is positioned on the battery case side. By forming the battery 1 in a proper position, the battery 1 can be always set in a predetermined direction and set in the battery case. As a result, reverse connection of the battery 1 due to carelessness of the user can be reliably prevented.

FIG. 3 is a perspective view showing an example of an embodiment of a battery box suitable for setting the battery 1 according to the present invention shown in FIGS. 1 and 2 for use. The battery box 11 has a configuration in which two batteries 1 are set side by side, and a main body case 12 of the battery box 11 has
In order to set the batteries 1 separately, battery spaces 13 and 14 having shapes corresponding to the batteries 1 are formed. In the battery spaces 13 and 14, terminals 13a and 14a for making electrical contact with the positive terminal 3 of the battery 1 and terminals 13 for making electrical contact with the negative terminal 4 of the battery 1 are provided.
b and 14b are provided (see FIG. 4).

It is ensured that the battery 1 is set in the battery space 13 in a predetermined direction, that is, such that the positive terminal 3 contacts the terminal 13a and the negative terminal 4 contacts the terminal 13b. Therefore, in the battery space 13, a pair of convex portions 15A, 15B engaging with the concave groove 2A of the battery 1 is provided.
Are formed integrally with the main body case in the form of protrusions on the inner wall surfaces 13c and 13d of the battery space. Convex portion 15A,
Reference numeral 15B is provided at a position corresponding to the position of the concave groove 2A when the battery 1 is set in the battery space 13 in a correct direction.

Therefore, the user can use the concave groove 2A of the battery 1
Only by inserting the battery 1 into the battery space 13 so that the protrusions 15A and 15B in the battery space 13 engage therein, as shown in FIG. Can be set in As a result, if the battery 1 and the battery box 11 are used, the positive terminal 3 of the battery 1 always contacts the terminal 13a, and the negative terminal 4 of the battery 1 always contacts the terminal 13b. 1 can be reliably prevented from being reversed.

As can be seen from the above description, the protrusions 15A, 1
5B may omit one of them. The projections 15A and 15B may be formed only at the opening edge of the battery space 13 in addition to the configuration shown in FIG. That is, the protrusions 15A and 15B may have any form as long as the purpose of the arrangement of preventing the battery 1 from being set in the reverse direction can be achieved.

If the battery 1 is a cylindrical battery (for example, a single to a single 5 type battery), it may be a primary battery such as a manganese battery, an alkaline battery, a lithium battery, or a secondary battery such as a lithium ion battery. There may be.

The battery box is not limited to those shown in FIGS. 3 and 4, but may have a configuration in which two batteries 1 are set in series as shown in FIG. In the case of the battery box 21 shown in FIG. 5, a slender battery space 23 for two batteries 1 is formed in the main body case 22.
B and 25A, 25B are formed, and the protrusions 24A, 24
B engages with the concave groove 2A of one battery 1 and the convex portions 25A,
5B engages with the concave groove 2A of the other battery 1,
Two batteries 1, 1 can always be set in series in a predetermined direction.

In the above embodiment, the battery box 1
Each of the examples 1 and 21 is a single type. However, the present invention can be applied to all types of battery boxes incorporated in devices such as a transistor radio and a small tape recorder in the same manner as the present invention. Of course, the battery box incorporated in the device is also included in the scope of the present invention.

[0023]

According to the present invention, the groove is provided on the outer peripheral surface of the cylindrical battery so as to avoid the center in the axial direction.
By providing the convex portion engaging with the concave groove in the battery box, it is possible to reliably guarantee that the battery is set in a predetermined direction in the battery box. Therefore, it is possible to reliably prevent an accident that the battery is set to the reverse polarity due to the carelessness of the user.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of an embodiment of a battery according to the present invention.

FIG. 2 is a perspective view of the battery shown in FIG.

FIG. 3 is a perspective view showing an example of an embodiment of a battery box according to the present invention for setting the battery shown in FIG. 1 for use.

FIG. 4 is a plan view showing a state where two batteries shown in FIG. 1 are set side by side in the battery box shown in FIG. 3;

FIG. 5 is a plan view showing another embodiment of the battery box of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Battery 2 Outer case 2A Concave groove 11, 21 Battery box 15A, 15B, 16A, 16B, 24A, 24B, 2
5A, 25B convex part

Claims (2)

[Claims] 1. A battery comprising a cylindrical outer case and a positive electrode terminal and a negative electrode terminal provided at the ends of the outer case, wherein an annular concave groove along the circumferential direction of the outer case is formed around the outer case. A battery provided on a surface of the battery and provided at a position deviated from an axial center of the battery. 2. A battery box in which the battery according to claim 1 is set, wherein the battery box is engaged with the groove at a position where the groove of the battery is to be located in a space for setting the battery. A battery box provided with a convex portion.