JP3039798U - Battery adapter case - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a battery adapter case that can be used in a battery housing of an electric product to use a battery smaller than the standard. [Structure] Battery adapter cases A, B, which can be used in a battery housing of an electric product to use a battery smaller than the standard
C has a cylindrical case body 1 formed in the same shape as the outer diameter of the standard battery housed in the battery housing, and a lid body 2 attached to the end of the case body 1. An electrode 4 that comes into contact with the positive electrode of a small battery contained therein is provided at the tip of the case body 1, and a holding portion 3 that holds at least both ends of the small battery is formed inside the case body 1. Is provided with an electrode 5 that comes into contact with the cathode of a small battery contained in the case body 1.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a battery adapter case that can use a battery of a standard smaller than that of a standard battery used in a battery housing of an electric product.

[0002]

[Prior art]

 Normally, batteries are standardized as AA, AA, AA, AA, etc. depending on the application, and the battery storage part of various conventional electric products has one of the standardized battery shapes. By being formed together, batteries of applicable standards can be used. For example, an AA battery was used for an electric product having a battery case for AA, and an AA battery was used for an electric product having an AA battery case.

[0003]

[Problems to be solved by the device]

 However, since the conventional battery compartment uses batteries of a standard that has been determined in advance for each type of electrical product, it is not possible to use batteries of different standards, and battery performance has improved. If a battery with a small standard shape can still be used, or if you have an extra nonstandard battery, or in an emergency or outdoors, use a battery that meets the standard of the battery compartment. There is a problem that non-standard batteries cannot be used when it is difficult to obtain.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a battery adapter case that can be used in a battery storage portion of an electric product to use a battery smaller than the standard. There is.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention is a battery adapter case that can be used in a battery storage part of an electric product to use a battery smaller than the standard, and is a standard battery specified in the battery storage part. It has a cylindrical case body formed in the same shape as the outer diameter of the case, and a lid body attached to the end of the case body. An electrode that is in contact with the anode is provided, a holding portion that holds at least both ends of the small battery is formed inside the case body, and the lid body has a cathode of the small battery that is built in the case body. It is characterized by the provision of an electrode that contacts the.

According to a second aspect of the present invention, the holding portion is an annular or arc-shaped projection that slides on the outer peripheral surface of the small battery formed inside the case body.

According to a third aspect of the present invention, the battery adapter case is formed in the same shape as the outer diameter of the AA battery, the AA battery, or the AA battery.

[0008]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described based on the illustrated example. FIG. 1 shows a battery adapter case according to an embodiment of the present invention, where reference symbol A is a battery adapter case having the same standard size as a single battery, and B is a battery adapter having the same standard size as a single battery. Case C is a battery adapter case having the same standard dimensions as the AA battery, and shows a state in which the AAA battery is built in the battery adapter case C.

The battery adapter case A is composed of a cylindrical case body 1 and a lid body 2 attached to the case body. With the lid body 2 attached to the case body 1, the battery adapter case A has the same standard size as a single battery. Is configured. The same applies to the battery adapter cases B and C.

The outer diameter of the case body 1 is formed to be substantially the same as that of the AA battery, and the inside of the case body 1 is formed with a sufficient space for accommodating the AA battery. A holding unit 3 for a built-in C battery is provided on the side.

The holding portion 3 is a protrusion formed on the inner peripheral surface of the case body 1, has an inner diameter dimension substantially the same as the outer diameter of the C-cell, and extends along the outer peripheral surface of the C-cell. It is formed in a ring shape. Alternatively, the battery may be divided into a plurality of arcuate shapes along the outer peripheral surface of the C-cell. Therefore, the holding portion 3 forms a recess 3a on the front end side of the case body 1, and the front end side of the C-cell is held in a state of being fitted into the recess 3a.

A positive electrode 4 is fixed to the tip side of the case body 1. The positive electrode 4 is a convex cylindrical metal piece that can be conducted by fitting the positive electrode of the battery inside, and as shown in FIG. 2, the flat plate portion at the tip is radially divided into a plurality of pieces. By being divided and bent inward, it is electrically connected to the anode of the built-in battery. The base end of the positive electrode 4 is preferably formed integrally with the case body 1.

Further, the holding portion 3 on the rear end side also plays a role of a guide when the C-cell is inserted into the case body 1. Further, the outer peripheral surface of the holding portion 3 on the rear end side of the case main body 1 has a diameter reduced, and a screw with which the lid body 2 is screwed is formed.

The lid body 2 is formed in a cap shape having a concave cross-section, and a screw that is screwed with the outer peripheral surface of the holding portion 3 of the case body 1 is formed on the inner side surface. Further, on the back surface of the lid body 2, there is provided a negative electrode 5 which comes into contact with the cathode of the AA battery contained in the case body 1. The negative electrode 5 is formed in a spring shape and one end thereof is fixed to the back surface of the lid body 2, and at least the central portion of the lid body 2 to which the negative electrode 5 is fixed is made of a conductor that is electrically connected to the front surface side.

The battery built in the case body 1 is constantly pressed toward the tip side by the negative electrode 5, and the battery built in the case body 1 is connected to the positive electrode 4 and the negative electrode 5 of the case body 1. Securely held between. The lid 2 may be a conductor as a whole, and the holding portion 3 may be formed in the center of the case body 1.

Although a battery adapter case B is built in the battery adapter case A of the present embodiment shown in FIG. 1, the battery adapter case B can contain a C battery. Of course, the AA battery may be built in the battery adapter case C provided inside the battery adapter case B.

Further, the battery adapter case B is formed to have the same outer dimensions as the AA battery, the battery adapter case C is formed to have the same outer dimension as the AA battery, and the other configurations are the battery adapter case. The same as A. The same parts of each battery adapter case are designated by the same reference numerals and the description thereof will be omitted.

As described above, in the battery adapter cases A, B, and C according to the present embodiment, not only the batteries of the standard smaller by one rank can be used independently, but also as shown in FIG. The four battery adapter cases can be combined to use the AAA battery 6 as an AA battery, or the battery adapter cases A and B can be combined to use an AA battery as an AA battery.

At this time, the positive electrodes 4 of the battery adapter cases A, B, and C are connected to overlap each other as shown in FIG. 1, and the negative electrodes 5 are also electrically connected via the lid 2. Therefore, the electrodes of the built-in AAA battery are electrically connected to the electrodes of the battery adapter case A.

As described above, by using the battery adapter case of the present embodiment, it is possible to use a battery of a small standard in the battery storage portion of the electric product of a predetermined standard.

[0021]

[Effect of the invention]

 The present invention has a cylindrical case body formed in the same shape as the outer diameter of a standard battery defined in the battery housing, and a lid body attached to the end of the case body. An electrode that comes into contact with the anode of the built-in small battery is provided at the tip of the case body, holding parts are formed inside the case body to hold at least both ends of the small battery, and the lid body holds the inside of the case body. Since an electrode that comes into contact with the cathode of the small battery built in the is installed, it is possible to load and use a small battery smaller than the standard in the battery storage part of the electrical product.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing a state in which a plurality of battery adapter cases according to the present invention are overlapped with each other.

FIG. 2 is an external perspective view of a battery adapter case according to the present invention.

[Explanation of symbols]

 1 Case body 2 Lid body 3 Holding part 4 Positive electrode (electrode) 5 Negative electrode (electrode) 6 AAA battery (small battery)

Claims (3)

[Utility model registration claims] 1. A battery adapter case that can be used in a battery storage portion of an electric product to use a battery smaller than the standard, and has the same outer diameter dimension as the standard battery defined in the battery storage portion. It has a formed cylindrical case body, and a lid body attached to an end portion of the case body, and an electrode that comes into contact with the anode of the built-in small battery is provided at the tip of the case body. A holding portion that holds at least both ends of the small battery is formed inside the case body, and an electrode that is in contact with the cathode of the small battery built in the case body is provided on the lid body. A battery adapter case characterized in that 2. The battery adapter case according to claim 1, wherein the holding portion is a ring-shaped or arc-shaped protrusion that slides on the outer peripheral surface of the small battery formed inside the case body. . 3. The battery adapter case according to claim 1, wherein the battery adapter case is formed in the same shape as the outer diameter dimension of the AA battery, the AA battery or the AA battery. Battery adapter case.