JPH0562955U - Battery housing - Google Patents

Abstract

(57) [Abstract] [Purpose] Even if a battery is accidentally attached with the positive and negative electrodes reversed, it is possible to reliably prevent damage to the device and deterioration of the battery. Moreover, to provide a battery housing that can be constructed at low cost. [Structure] The corresponding part to which the positive electrode part of the battery is attached,
It has a projecting portion formed of an insulating material and provided so as to surround at least a part of the terminal electrode portion. The height of the protruding portion from the outer end surface of the terminal electrode portion to the protruding portion is set smaller than the height dimension of the positive electrode portion of the battery. Further, the diameter of the portion of the protrusion, which is defined at least inward in the radial direction with respect to the mounting direction of the battery, is set smaller than the diameter of the outer diameter of the battery.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a battery container to which a dry battery or a storage battery is attached for discharging and charging.

[0002]

[Prior Art]

 Dry batteries are widely used as an easy-to-use DC power source for household appliances such as flashlights and portable radio cassettes. There are various types of dry batteries, such as manganese dry batteries and alkaline dry batteries, which have so-called single to single-sized specifications and shapes according to their electric capacities, and these are commonly attached to one end of a cylindrical body. It has a shape having a protruding positive electrode portion and a flat negative electrode portion at the other end. In addition, nickel-cadmium storage batteries, etc., which have a shape compatible with such dry batteries and can be used repeatedly many times by charging, are widely used.

Such a battery is connected to the device or mounted in a battery container such as a battery holder or a battery case provided integrally with the device. Then, electricity is exchanged through the terminal electrode portion provided in the battery container. That is, the battery is discharged from an electric load or charged from a power source or the like. In addition, since the battery has a polarity, the battery container is usually provided with a polarity display to which the positive and negative electrodes should be attached.

[0004]

[Problems to be solved by the device]

 If the battery is accidentally attached with the positive and negative electrodes reversed, the device may be damaged or the battery may deteriorate. In such a case, there is a battery housing body in which a protection circuit is built in or connected to prevent the reverse connection of the battery even if the battery is reversely connected, but it is expensive, and the mounting is complicated and a required space is required. In general, the battery housing of the device in which the battery is used is set at a low price, and therefore, the attention is paid to the above polarity display at the most. In this way, some kind of solution has been eagerly awaited.

The present invention has been made in view of the above facts, and its problem is that even if the battery is connected with the positive and negative electrode parts mounted reversely, the device is damaged. It is an object of the present invention to provide a battery container which can surely prevent deterioration of a battery and a battery and can be configured at low cost.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in a battery housing of the present invention, a battery having a cylindrical positive electrode part at one end and a planar negative electrode part at the other end, and a battery having a discharge or Is a battery accommodating body that is mounted for charging, and is formed of an insulating material at the corresponding portion where the positive electrode part of the battery is mounted and surrounds at least a part of the terminal electrode part. The protrusion has a height from the outer end surface of the terminal electrode portion to the protrusion that is greater than the height of the positive electrode portion of the battery. The protrusion is set to have a small diameter, and the diameter of at least a portion defined inward in the radial direction with respect to the battery mounting direction is smaller than the diameter dimension defined by the outer dimensions of the battery. It is assumed that it was formed.

[0007]

[Action]

 At the corresponding portion of the battery housing to which the positive electrode portion of the battery is to be attached, the positive electrode portion of the battery contacts the terminal electrode portion and is energized. In this case, the projecting part surrounds at least a part without hindering the terminal electrode part, and the projecting part is set smaller than the height dimension of the positive electrode part of the battery. Therefore, the battery can be easily installed without any problem. However, when the battery is installed in reverse, the diameter of the protrusion is at least defined inward in the radial direction with respect to the battery installation direction, and the diameter is smaller than the diameter specified by the external dimensions of the battery. .. Therefore, the negative electrode portion of the battery comes into contact with the protruding portion, which limits the position. Therefore, it does not reach the terminal electrode portion inside the protrusion. That is, the negative electrode portion does not contact the terminal electrode portion, and the battery is not energized in the battery container.

[0008]

【Example】

 An embodiment of a battery container according to the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a battery charger for charging six storage batteries having the same shape as an AA battery, (a) is a plan view, (b) is a front view, and (c) is a cross-sectional view taken along line YY. Is. The details of the sectional view in (c) are omitted. The battery charger 1 is constructed by fitting a resin-molded upper lid 3 and a lower lid 4 made of, for example, ABS resin. The battery housing 2 is integrally formed on the upper lid 3.

A conversion means for converting an AC power source into a predetermined DC voltage is provided in a portion 20 (not shown), and the output voltage is connected to the terminal electrode group 21 of the battery housing 2. FIG. 2 is an enlarged view of a part of the battery container 2 as seen obliquely from above. As shown in FIG. 2, the storage battery 5 (hereinafter referred to as a battery) has a positive electrode portion 8 on the left side of the drawing and a negative electrode portion 9 on the right side of the drawing, and the battery housing is oriented in the corresponding direction. The terminal electrode portions 6 and 7 are set.

The positive terminal electrode portion 6 corresponding to the positive electrode portion 8 of the battery 5 is formed by punching out a conductive steel plate such as brass in a predetermined shape so that a substantially central portion thereof slightly protrudes toward the battery side. The terminal protrusions 15 are provided and nickel-plated. The positive terminal electrode portion 6 is fitted into the frame portion 32 integrally formed with the upper lid body 3 and the protruding portions 11 and 11 also formed on both sides thereof. In addition, the positive terminal electrode portion 6 is positioned, held and fixed by the flange portion 31 of the protrusion 11 and the frame portion 32. Although not shown, a lead wire for electrical connection is soldered to the lower side of the positive terminal electrode portion 6.

On the other hand, the negative terminal electrode portion 7 corresponding to the negative electrode portion 9 of the battery 5 is integrally formed by crimping a spring material on a conductive steel plate, and similarly to the above, the upper lid body 3, The frame portion 32 and the projecting portions 12, 12 provided on both sides interpose and are fitted and fixedly held. Further, they are electrically connected by lead wires (not shown).

FIG. 3 is an enlarged plan view of the battery container 2 of FIG. 2 as seen from above. 3A shows a state in which the battery 5 is mounted in a predetermined direction, and FIG. 3B shows a state in which the battery 5 is mounted in reverse. In FIG. 3, the protrusion 11 has a height t from the terminal protrusion 15 (that is, the outer end surface) of the positive terminal electrode portion 6 to the end of the protrusion 11 and is a positive electrode of the battery 5. It is set smaller than the height dimension T of the portion 8. Therefore, as shown in (a) of the figure, the positive electrode portion 8 is brought into contact with the positive terminal electrode portion 6 to be electrically conductive. Further, the negative electrode portion 9 also comes into contact with the spring material 10 and is electrically conductive to the negative terminal electrode portion 7.

However, when the battery 5 is mounted in reverse, the position of the planar negative electrode portion 9 of the battery 5 is limited by the protrusions 11 and 11 as shown in FIG. This is because the diameter dimension L defined by surrounding the positive terminal electrode portion 6 is set to be smaller than the diameter dimension D defined by the outer dimension of the battery 5. Therefore, the negative electrode portion 9 and the positive terminal electrode portion 6 do not come into contact with each other, and conversely, it is possible to prevent an accident when the battery 5 is attached.

FIG. 4 shows another embodiment of the protrusion 11 shown in FIGS. 1 to 3. In both (a) and (b), the height t is set smaller than the height T of the positive electrode portion 8 of the battery 5, and the diameter L is set smaller than the diameter D of the battery 5. Is formed. Therefore, the same effect as described above can be obtained. Although one embodiment of the battery housing according to the present invention has been described above, the present invention is not limited to such an embodiment, and various modifications and corrections can be made without departing from the scope of the present invention. is there.

[0015]

[Effect of the device]

 Since the battery container of the present invention has the above-mentioned configuration, even if the battery is installed upside down, it can be constructed inexpensively without causing damage to the device or deterioration of the battery. A battery housing that can be obtained is obtained.

[Brief description of drawings]

FIG. 1 shows an embodiment of a battery housing according to the present invention,
(A) is a plan view, (b) is a front view thereof, and (c) is a sectional view.

FIG. 2 is an enlarged perspective view of a main part of the battery container shown in FIG.

FIG. 3 is a plan view showing a usage state of the battery housing body shown in FIGS. 1 and 2.

FIG. 4 is a partial perspective view showing another embodiment.

[Explanation of symbols]

 2 battery housing 5 battery 6 positive terminal electrode portion 11 projecting portion

Claims (1)

[Scope of utility model registration request] 1. A battery having a cylindrical positive electrode portion at one end and a flat negative electrode portion at the other end of a cylindrical main body, and a battery container mounted for discharging or charging the battery. There, a corresponding portion to which the positive electrode portion of the battery is attached has a protrusion formed of an insulating material and provided so as to surround at least a part of the terminal electrode portion, The height of the protruding portion from the outer end surface of the terminal electrode portion to the protruding portion is set smaller than the height dimension of the positive electrode portion of the battery, and the protruding portion is A battery container characterized in that the diameter of at least a portion defined radially inward with respect to the battery mounting direction is set smaller than the diameter dimension defined by the outer dimensions of the battery. .