JP3032083U - Battery case - Google Patents

Abstract

(57) Abstract: It is possible to use an AA dry cell as an AA dry cell. SOLUTION: Four ribs 18 are provided on an inner peripheral surface (10b) of a first cylindrical member (10), and two ribs AA batteries are provided.
(19) can be inserted side by side. End cap (11)
The columnar shape formed by fitting into the first cylindrical member (10) has the same outer diameter and the same length as the C-type dry battery. The positive and negative electrodes of the AA dry battery (19) are in contact with the metal member (17) attached to each end surface of the first cylindrical member (10), and the AA battery is inserted through the metal member (17). The dry cell can be connected to an external circuit as an AA dry cell.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a battery case for using a small size dry cell (hereinafter, “size” refers to both outer diameter and length) as a large size dry cell. More specifically, for example, the present invention relates to a battery case that can be used as an AA type or AA type dry battery by incorporating an AA type dry battery into the present battery case.

[0002]

[Prior art]

 Generally, an electric device using a dry battery as a power source (for example, a portable radio) has a dedicated space for storing the dry battery. For example, when the electric device uses a C-type dry battery as a power source, the space for exclusive use of the dry battery is usually designed according to the size of the C-type dry battery. For this reason, even if a size AA dry cell or size AA dry cell that is smaller than the size A1 dry cell is inserted, the size of the dry cell dedicated space is larger. It cannot be fixed in position, and after all, AA or AA dry batteries cannot be used as a power source.

Therefore, in the case of using an electric device dedicated to the AA type dry battery, even if the AA type dry battery is owned, it is necessary to newly prepare the AA type dry battery.

[0004]

[Problems to be solved by the device]

 AA, AA and AA batteries all have the same voltage (1.5 volts). Therefore, even an electric device dedicated to AA dry batteries can be driven by AA dry batteries. However, as mentioned above, in the conventional equipment where the space for accommodating dry batteries is formed exclusively for AA dry batteries, only AA dry batteries are used because of size problems. It was impossible to do.

The present invention has been made in order to eliminate the inconvenience caused by the conventional electric equipment being designed to use only a single size dry battery, and thus has a large size. For devices that are designed with a dry battery (for example, AA dry battery or AA dry battery) as the power source, and small size dry batteries (for example, for a device for AA dry battery, AA or AA dry batteries). It is an object of the present invention to provide a battery case that can be used with AA dry batteries) for equipment for 3 type dry batteries and AA type dry batteries.

[0006]

[Means for Solving the Problems]

 In order to achieve this object, the battery case according to the first aspect of the present invention has one end face opened and the other end face closed, and a through hole is provided at the center of the other end face. The first cylindrical member that is open and one end surface of which is open and the other end surface of which is closed, and the first cylindrical member and the first cylindrical member can be fitted to each other. A second cylindrical member that forms a cylindrical shape by forming a cylindrical space and a metal that is formed so as to project from the through hole of the first cylindrical member. A first metal member formed of a pillar and a metal piece integrally formed with the metal pillar and extending along the inner surface of the other end surface of the first cylindrical member; and a second cylindrical member of the second cylindrical member. A second cylindrical member mounted on the second cylindrical member so as to be exposed on both the front and back surfaces of the other end surface. And a metal member. Four ribs extending parallel to the axial direction of the cylindrical member are formed on the inner peripheral surface of at least one of the first cylindrical member and the second cylindrical member. The ribs are arranged such that when two dry batteries having a first outer diameter R1 and a first length L1 are inserted in the cylindrical space (for example, AA dry batteries), the two dry batteries are arranged in parallel. When a single dry cell (for example, a single AA dry cell) having a second outer diameter R2 and a second length L2 is placed in the cylindrical space, the dry cell can be supported in the state. It is arranged on the inner peripheral surface described above in such a positional relationship that it can support the. A dry cell in which the outer diameter and length of the columnar shape formed by fitting the first cylindrical member and the second cylindrical member have a third outer diameter R3 and a third length L3. It is formed so as to have the same outer diameter R3 and length L3 (for example, a single dry cell) (where R1 <R2 <R3 and L1 <L2 <L3), and the first outer diameter R1 and When two dry cells having the first length L1 or the dry cells having the second outer diameter R2 and the second length L2 are put into the cylindrical space, the positive electrodes of these dry cells are The one metal member is in contact with the metal piece, and the negative electrode is in contact with the second metal member.

A battery case according to the present invention in a second aspect is a first cylindrical member in which one end face is open, the other end face is closed, and the center part of the other end face is open. , One end face is open, the other end face is closed, the central part of the other end face is open, and the first cylindrical member can be fitted to each other, and A second cylindrical member that forms a cylindrical shape by fitting with the cylindrical member and that forms a cylindrical space inside is provided. The outer diameter and length of the cylindrical space formed by fitting the first cylindrical member and the second cylindrical member are the first outer diameter R1 and the first length L1. It is the same as the outer diameter R1 and the length L1 of the dry battery (for example, AA dry battery) that it has, and is formed by fitting the first cylindrical member and the second cylindrical member. The outer diameter of the columnar shape is the same as the outer diameter R2 and the length L2 of the dry battery (for example, either one of the size A dry battery or the size A dry battery) having the second outer diameter R2 and the second length L2. (Where R1 <R2 and L1 <L2), and when the dry battery having the first outer diameter R1 and the first length L1 is placed in the cylindrical space, the dry battery is Of the positive electrode is the end surface of one of the first cylindrical member and the second cylindrical member. Exposed from the central portion, the negative electrode is formed so as to be exposed from the other of the central portion of the other end face of said first cylindrical member and second cylindrical member.

Further, it is possible to use the battery cases in the above two modes in combination. For example, the battery case according to the second aspect in which one dry battery (for example, an AA dry battery) having the first outer diameter R1 and the first length L1 is put in the cylindrical space. Can be used in a state of being put inside the cylindrical space of the battery case according to the first aspect.

[0009]

1 and 2 show an embodiment of a battery case according to claim 1. FIG. 1 is a perspective view of the battery case viewed from the front, and FIG. 2 is a perspective view of the battery case viewed from the rear.

The battery case according to the present embodiment has a first cylindrical member 10 and an end cap 11 as a second cylindrical member. One end face 12 (end face appearing in FIG. 2) of the first cylindrical member 10 is open, and the other end face 13 (end face appearing in FIG. 1) is closed. A through hole 14 is provided at the center of the end face 13, and two small holes 15 are provided in the diameter direction of a concentric circle centered on the through hole 14. As shown in FIG. 1, the first cylindrical member 10 is formed with a small diameter portion 10a starting from the opening end surface 12.

On the other hand, the end cap 11 includes a circular bottom surface 11a and an annular outer peripheral wall 11b that stands upright on the outer circumference of the circular bottom surface 11a. The inner diameter of the annular outer peripheral wall 11b is equal to the outer diameter of the small diameter portion 10a of the first cylindrical member 10, and the height of the annular outer peripheral wall 11b is equal to the length of the small diameter portion 10a. Therefore, the end cap 11 can be fitted into the opening end face 12 of the first cylindrical member 10, and by fitting the end cap 11 into the first cylindrical member 10, One cylinder A (see FIG. 5) is formed, and a cylindrical space B (not shown) is formed inside the cylinder A.

A first metal member 16 is attached to the through hole 14 of the first cylindrical member 10. As shown in FIG. 1, the first metal member 16 is composed of a cylindrical metal pillar 16a and a substantially elliptical metal piece 16b, and the metal pillar 16a is fixed to the center of the metal piece 16b. . The first metal member 16 is attached so that the metal column 16a projects from the through hole 14 of the first cylindrical member 10 to the outside. Therefore, the metal piece 16a is attached in contact with the inner surface 13a (see FIG. 2) of the end surface 13.

In addition, at the time of this attachment, the metal piece 16 b is prevented from overlapping the small hole 15. Preferably, the first metal member 16 is attached to the first cylindrical member 10 so that the long axis of the metal piece 16b is orthogonal to the line segment connecting the two small holes 15.

On the other hand, a second metal member 17 is attached to the end cap 11. The end cap 11 has two slits (not shown) that are parallel to each other, and the metal plate 17 is formed from both ends of the end cap 11 to the outer peripheral wall 11b from the outside of the end cap 11 through the two slits. It is inserted toward the side that is being. After that, the metal plate 17 is bent so that one end 17a is in contact with the circular bottom surface 11a, and the other end 17b is obliquely bent so as to form an angle with the circular bottom surface 11a. The intermediate portion 17c between the end portions 17a and 17b is attached to the outer surface 11c of the circular end surface 11a of the end cap 11 as shown in FIG.

Four ribs 18 are formed on the inner peripheral surface 10 b of the first cylindrical member 10. The rib 18 has a substantially trapezoidal cross section and projects toward the central axis of the first cylindrical member 10. The rib 18 extends from the opening end face 12 to the end face 13 parallel to the axial direction of the first cylindrical member 10. There is.

The end cap 11 and the first cylindrical member 10 have an outer diameter and a length of a cylinder A (see FIG. 5) formed by fitting the end cap 11 into the first cylindrical member 10. Is provided so as to be equal to the outer diameter and the length of the C-type dry battery. Further, the length of the internal cylindrical space B formed by fitting the end cap 11 into the first cylindrical member 10 in the axial direction is made equal to the length of the AA battery. There is.

The dimensions of the cylindrical space B and the four ribs 18 and the positional relationship between them are determined so as to satisfy the following two conditions. The first condition is that, as shown in FIG. 3, when two AA dry batteries 19 are placed inside the cylindrical space B, those two AA dry batteries 19 are supported side by side. Is to be able to. In this case, each AA battery 19 is supported at four points, that is, the apexes of the two ribs 18, one point 10c of the inner peripheral surface 10b of the first cylindrical member 10, and the other AA battery. It will be.

The second condition is that one C-type dry battery 20 can be supported inside the cylindrical space B as shown in FIG. In this case, the AA battery 20 is supported at each apex of the four ribs 18.

As described above, the four ribs 18 can support two AA dry batteries 19 or one AA dry battery 20 inside the cylindrical space B. . In the first metal member 16 described above, a pair of ribs 18 (for example, a pair of ribs 18a and 18b and a pair of ribs 18c and 18d shown in FIG. 3) whose longitudinal axes of the metal pieces 16b are located closer to each other are provided. The first cylindrical member 10 is attached to the first cylindrical member 10 so as to face the assembly. By attaching the first metal member 16 in this way, the long axis of the metal piece 16b is oriented in the same direction as the direction in which the two AA dry batteries 19 are arranged, and the two AA dry batteries 19 are attached. When it is placed inside the cylindrical space B, the positive electrodes of the two AA dry batteries 19 both come into contact with the metal piece 16b.

When one AA dry cell 20 is placed in the cylindrical space B, the positive electrode of the AA dry cell 20 contacts the metal piece 16b regardless of the orientation of the metal piece 16b.

The battery case according to this embodiment having the above structure is used as follows. First, the first metal member 16 is fixed to the first cylindrical member 10 so that the metal column 16a projects from the through hole 14 of the first cylindrical member 10. At this time, the metal piece 16b is attached so that the long axis of the metal piece 16b faces the set of ribs 18a and 18b and the set of ribs 18c and 18d.

Next, two AA batteries 19 are inserted into the first cylindrical member 10 with their positive electrodes facing the end surface 13 side of the first cylindrical member 10. The two AA batteries 19 are supported in parallel by the four ribs 18 as shown in FIG. In this state, each positive electrode of the two AA dry batteries 19 is in contact with the metal piece 16b of the first metal member 16.

Alternatively, instead of the two AA dry batteries 19, one AA dry battery 20 is inserted into the first cylindrical member 10. The AA dry cell 20 is supported by the apexes of the four ribs 18 in the state shown in FIG.

Next, the end cap 11 is fitted into the small diameter portion 10a of the first cylindrical member 10. This state is shown in FIG. As shown in FIG. 5, the end 17b of the second metal member 17 attached to the end cap 11 is in contact with the negative electrode of one of the AA batteries 19, and the end 17a (or the length of the end 17b is longer). Depending on the size, both ends 17b and 17a) are in contact with the negative electrode of the other AA battery 19.

As described above, the outer diameter and the length of the cylinder A formed by fitting the end cap 11 into the first cylindrical member 10 are the same as the outer diameter and the length of the AA battery. And the metal column 16a of the first metal member 16 protruding from the through hole 14 of the end surface 13 of the first cylindrical member 10 functions as a positive electrode, and The intermediate portion 17c of the second metal member 17 extending on the outer side surface 11c of the circular bottom surface 11b of the part cap 11 functions as a negative electrode. Therefore, the present battery case having the two AA dry batteries 19 inside can be used as an AA dry battery.

Alternatively, when the AA dry battery 20 is inserted into the first cylindrical member 10, the AA dry battery can be substituted for the AA dry battery by the battery case in the same manner. In addition, in the above-described embodiment, the AA-type or AA-type dry batteries 19 and 20 are inserted so that the positive electrode faces the end surface 13 of the first cylindrical member 10, but the positive and negative electrodes may have opposite directions. .

The two small holes 15 provided in the end surface 13 of the first cylindrical member 10 have a function of releasing heat generated inside the first cylindrical member 10. Since the metal piece 16b of the first metal member 16 is arranged so as not to overlap the two small holes 15, the two small holes 15 are not blocked by the two AA batteries 19 (Fig. 5), good heat dissipation performance can be exhibited. Further, if the dry battery is caught inside the first cylindrical member 10, a thin rod can be inserted through the small hole 15 and the dry battery inside can be pushed out.

As described above, according to the battery case according to the present embodiment, it becomes possible to substitute the AA dry battery or the AA dry battery as the A1 dry battery.

6 and 7 show an embodiment of the battery case according to claim 2. The battery case according to the present embodiment has an end cap 21 as a first cylindrical member and a second cylindrical member 22.

The end cap 21 includes a circular bottom surface 21a and an annular outer peripheral wall 21b that stands upright from the outer circumference of the circular bottom surface 21a. The circular bottom surface 21a is provided with a slit 21c in one diameter direction and a circular opening 21d in the center. On the other hand, the second cylindrical member 22 has a small diameter portion 22a formed at one end, and the end surface 22b (the end surface shown in FIG. 6) on the side where the small diameter portion 22a is provided is open. The other end face 22c (the end face appearing in FIG. 7) is closed, but a circular opening 22d is formed in the center thereof.

The end cap 21 is formed so that it can be fitted into the second cylindrical member 22 via the small diameter portion 22a. Further, the height of the outer peripheral wall 21b of the end cap 21 is formed to be equal to the length of the small diameter portion 22a of the second cylindrical member 22. Therefore, by fitting the end cap 21 into the small-diameter portion 22b of the second cylindrical member 22, one column C is formed and a columnar space D is formed inside the column C.

The outer diameter and the length of the cylinder C are equal to the outer diameter and the length of the C-type dry battery. Further, the inner diameter and the length of the cylindrical space D are equal to the outer diameter and the length of the AA battery.

The battery case according to this embodiment having the above structure is used as follows. First, the AA battery 19 is inserted into the second cylindrical member 22 from the negative electrode side through the open end surface 22b of the second cylindrical member 22. The AA battery 19 is pushed until it reaches the end surface 22c of the second cylindrical member 22.

Next, the end cap 21 is fitted to the small diameter portion 22 a of the second cylindrical member 22. In this state, the positive electrode of the AA battery 19 is exposed from the circular opening 21d of the end cap 21, and the negative electrode is exposed from the circular opening 22d of the end surface 22c of the second cylindrical member 22. There is.

As described above, according to the present embodiment, the outer diameter and the length of the cylinder C formed by fitting the end cap 21 into the second cylindrical member 22 are the same as those of the C-sized dry battery. Since the outer diameter and the length are equal to each other, the AA dry battery 19 can be substituted into the AA dry battery by inserting the AA dry battery 19 into the battery case.

In the above embodiment, the outer diameter and the length of the second cylindrical member 22 are set to be the same as the outer diameter and the length of the AA dry battery. If the outer diameter and the length of 22 are set to be the same as the outer diameter and the length of the AA dry cell, the AA dry cell can be used as the AA dry cell by this battery case. .

In the battery case according to the first embodiment described above (shown in FIGS. 1 to 5), two AA batteries are used in order to substitute the AA dry battery for the AA dry battery. A dry cell is required, but by using it together with the battery case according to the second embodiment (as shown in FIGS. 6 and 7), one AA dry cell can be converted into an AA dry cell. It is possible to substitute it.

First, one AA dry battery 19 is inserted into the battery case according to the second embodiment to form a cylinder C having the same size as the AA dry battery. The column C is inserted into the battery case according to the first embodiment. Thus, by using the two battery cases according to the first and second embodiments together, even one single AA dry cell can be used as an AA dry cell.

In each of the above-described two embodiments, each battery case is composed of one cylindrical member 10, 22 and one end cap 11, 21, but this combination is replaced by two. It is also possible to use one cylindrical member. By constructing these two cylindrical members so that they can be fitted to each other and adding the elements constituting the cylindrical members 10 and 22 or the end caps 11 and 21, respectively, the above two embodiments can be realized. A battery case similar to the related battery case can be obtained.

Further, when the battery case according to the first embodiment is configured by using two cylindrical members, the rib 18 may be formed on either one of the two cylindrical members. Alternatively, it may be formed on both of the two cylindrical members.

Furthermore, in the above-described two embodiments, the case of using the AA type to AA type dry batteries is assumed, but the battery case according to the present invention has dry batteries of other sizes (for example, AA type or AA type). It can also be applied when using AA batteries) instead of larger size batteries.

However, when the AA type dry battery or the AA type 5 dry battery is used as a substitute for the AA type dry battery, the difference in length between them is relatively large, and therefore it is necessary to provide means for compensating for the difference. For example, in the case of using the battery case according to the second embodiment described above and substituting the AAA dry cell as the AA dry cell, as shown in FIG. 8, the end surface 22c side of the second cylindrical member 22 is provided. , A cylindrical metal block 24 having a length equal to the difference in length between the AAA dry cell 23 and the AAA dry cell and having an outer diameter equal to the inner diameter of the second cylindrical member 22 in advance. I embed it. The metal block 24 brings the negative electrode of the AAA battery 23 into contact with the outside through the metal block 23.

[0043]

[Effect of device]

 As described above, according to the battery case of the present invention, a small size dry cell can be used as a larger size dry cell in the following manner, for example. (1) Use of two AA dry batteries as AA dry batteries (see FIGS. 3 and 5) (2) Use of one AA dry battery as AA dry batteries (see FIG. 4) 3) Use of one AA dry cell as AA dry cell or AA dry cell (see FIG. 6 or FIG. 7) (4) Use of one AA dry cell as AA dry cell

In addition to the batteries listed above, it is also possible to use AAA or AA dry batteries as larger size AA, AA or AA dry batteries. Therefore, according to the present invention, it is possible to use only a small size dry cell (for example, AA dry cell) without preparing a large size dry cell (for example, AA or AA dry cell). It is possible to use various devices designed with a dry battery as a power source.

[Brief description of drawings]

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

FIG. 2 is a perspective view of the battery case shown in FIG. 1 as viewed from the rear.

FIG. 3 is a perspective view showing one usage mode of the battery case shown in FIGS. 1 and 2.

FIG. 4 is a perspective view showing another usage mode of the battery case shown in FIGS. 1 and 2.

FIG. 5 is a perspective view showing a usage pattern similar to FIG.

FIG. 6 is a front perspective view of another embodiment of the battery case according to the present invention.

7 is a perspective view of the battery case shown in FIG. 6 as viewed from the rear.

8 is a perspective view of a modified example of the battery case shown in FIG.

[Explanation of symbols]

 10 First Cylindrical Member 10a Small Diameter Part of First Cylindrical Member 10b Inner Surface of First Cylindrical Member 11 End Cap 11a Circular Bottom Surface of End Cap 11b End Cap Outer Wall 11c End Cap Outer side surface of circular bottom surface of 12, 13 End surface of first cylindrical member 14 Through hole 15 Small hole 16 First metal member 16a Metal column 16b Metal piece 17 Second metal member 18 Rib 19 AA dry cell 20 Single Type 2 dry battery 21 End cap 21a End cap bottom surface 21b End cap outer peripheral wall 21c Slit 21d Circular opening 22 Second cylindrical member 22a Second cylindrical member small diameter portion 22b, 22c Second cylindrical shape End face of member 22d Circular opening 23 AAA battery 25 Metal block

Claims (5)

[Scope of utility model registration request] 1. A first cylindrical member having one end face opened and the other end face closed, and a through hole provided at the center of the other end face, and one end face opened and the other Has an end face closed and is capable of mutually fitting with the first cylindrical member, and by fitting with the first cylindrical member, a cylindrical shape is formed, and a cylindrical shape is formed inside. A second cylindrical member forming a space, a metal column formed so as to project from the through hole of the first cylindrical member, and a metal column integrally formed with the first cylindrical shape. A first metal member consisting of a metal piece extending along the inner surface of the other end face of the member, and the second cylindrical shape so as to be exposed on both the front and back surfaces of the other end face of the second cylindrical member. A second metal member attached to the member, the first cylindrical member and the second cylindrical member Four ribs extending in parallel to the axial direction of the cylindrical member are formed on at least one of the inner peripheral surfaces of the cylindrical member, and the four ribs are the first ribs in the cylindrical space. Outer diameter R
1 and a second outer diameter R2 and a second outer diameter R2 in the cylindrical space so that the two dry cells can be supported in parallel when two dry cells having a first length L1 are inserted. The first cylindrical member and the second cylindrical member are arranged on the inner peripheral surface in a positional relationship such that they can support one dry battery having a second length L2. The outer diameter and the length of the cylindrical shape formed by fitting and are the same as the outer diameter R3 and the length L3 of the dry battery having the third outer diameter R3 and the third length L3. Are formed (where R1 <R2 <R3 and L1 <L2 <L3), and two dry cells having the first outer diameter R1 and the first length L1 or the second outer diameter R2 and second When a dry cell having a length of L2 is placed in the cylindrical space, Battery case, wherein the electrode is in contact with said metal piece of the first metal member, the negative electrode is one that is in contact with the second metal member. 2. A first cylindrical member having one end face opened, the other end face closed, and a central portion of the other end face opened, and one end face opened, and the other end face. Is closed, the central portion of the other end face is open, and the first cylindrical member can be fitted to each other, and by fitting with the first cylindrical member, a cylindrical shape can be obtained. And a second cylindrical member that forms a cylindrical space inside, and the cylindrical shape that is formed by fitting the first cylindrical member and the second cylindrical member. The outer diameter and the length of the space are the same as the outer diameter R1 and the length L1 of the dry cell having the first outer diameter R1 and the first length L1, and the first cylindrical member and the second The outer diameter of the columnar shape formed by fitting with the cylindrical member is a second outer diameter R2 and a second length L2. It is formed to be the same as the outside diameter R2 and the length L2 of the batteries with (where, R1 <R2
And L1 <L2), when a dry battery having the first outer diameter R1 and the first length L1 is placed in the cylindrical space, the positive electrode of the dry battery becomes the first cylindrical member and the second cylindrical member. The negative electrode is exposed from the central portion of the other end surface of one of the cylindrical members, and the negative electrode is exposed from the central portion of the other end surface of the other of the first cylindrical member and the second cylindrical member. A battery case characterized by being formed as described above. 3. The battery case according to claim 1, wherein one dry battery having the first outer diameter R1 and the first length L1 is placed in the cylindrical space. The battery case used in the state of being put inside the cylindrical space of the battery case. 4. The dry battery having the first outer diameter R1 and the first length L1 is an AA dry battery, and the second outer diameter R1.
The dry cell having 2 and the second length L2 is a C-type dry cell, and the dry cell having the third outer diameter R3 and the third length L3 is a C-type dry cell. 1
Battery case described in. 5. The dry battery having the first outer diameter R1 and the first length L1 is an AA dry battery, and the second outer diameter R1.
2 and the dry cell having the second length L2 are a single type or a single type.
The battery case according to claim 2, wherein the battery case is a dry battery.