WO2013014785A1

WO2013014785A1 - Battery spacer

Info

Publication number: WO2013014785A1
Application number: PCT/JP2011/067261
Authority: WO
Inventors: 一平大作
Original assignee: 大作商事株式会社
Priority date: 2011-07-28
Filing date: 2011-07-28
Publication date: 2013-01-31

Abstract

The present invention pertains to a battery spacer, and addresses the problem of providing a spacer that prevents reverse loading when loading a battery inside the spacer, prevents the occurrence of shorting, high heat, and the like, when loading a battery in reverse, and allows a reverse loaded state to be recognized. The battery spacer has a curved contact fitting which is housed in the lid of the spacer case, and electrically connects with an electrode of a battery, and has a protruding section between the contact fitting and the lid. At the bottom of the case, the battery spacer has a protruding section on a contact fitting that electrically connects with an electrode of a battery, and has a protrusion for preventing reverse loading in the vicinity of the protruding section of the contact fitting. The protrusion for preventing reverse loading prevents electricity from being conducted when a battery is loaded in reverse, and prevents the battery from being housed in the case when loaded in reverse.

Description

Battery spacer

The present invention relates to a dry cell spacer of a primary battery, and more particularly to a dry cell spacer that can be used as a single dry cell using an AA dry cell.

Currently, cylindrical dry batteries as primary batteries are used in a wide variety of devices, and their shapes are standardized in order to improve versatility.
Therefore, according to each device, single standard single battery, single two standard single two dry battery, single three standard AA dry battery, single four standard single four dry battery, single five standard single five dry battery, single six There are standard AAA batteries.
Single standard and AA standard batteries are widely used, and are used in place of single batteries by incorporating AA batteries into a case of the size of a single battery standard. Has already been used.

For example, as shown in Utility Model Registration No. 3070475, three AA standard batteries are placed in a single standard size case, and a positive electrode and a negative electrode are arranged at both end terminals respectively. It is used as a dry battery.
In addition, dry cell spacers are often used in which a single AA standard dry cell is placed in a case of a single dry cell standard size and used as a single dry cell.

Noto 3070475

This is because, for each electrical device using a dry cell, the storage location of the dry cell is designed on the premise that the dry cell of a predetermined standard is stored. Therefore, it follows the shape of the dry cell installation space of the case. However, only dry batteries of other standards can be properly installed, and dry batteries of other standards cannot be used.
Therefore, using AA standard batteries, which are most frequently used at present, they are housed in a spacer of a single standard battery different from this standard and used as a single standard battery. It is what.

In particular, a single standard battery has a larger diameter than an AA standard battery, and as shown in Patent Document 1, a plurality of AA batteries are used and mounted in a single standard spacer. Some are used as batteries.
However, when using a plurality of AA standard batteries in this way, it cannot be energized if the orientation is wrong, and depending on the spacer installation condition, the attached batteries become energized and become hot. May cause a short circuit or a short circuit.

Therefore, it is necessary to pay particular attention to mounting in the spacer, but many users often mount without worrying, and some improvement is required.
In particular, when using multiple dry batteries with respect to dry cell spacers, the installation situation is that the dry batteries are connected in parallel with multiple batteries, which is different from the series installation, which is a general equipment installation state. There is.
That is, with respect to general electric devices, there are many cases in which the mounting directions are reversed so that the plus and minus poles are alternated.

On the other hand, with regard to the dry cell spacer, when installing multiple dry cells, the positive and negative poles must be aligned, and the positive and negative poles are separated from each other in the direction of the end and in contact with each electrode fitting. It will be what.
Accordingly, a plurality of dry batteries are attached together with positive electrodes at one end, and each battery is connected to each other with connection fittings and then function as a positive electrode with the electrode fittings. In this case, the negative electrode is also attached and each battery is connected with a connection metal fitting, and then the electrode metal fitting functions as a negative electrode.

Therefore, if the dry batteries are mistakenly installed in reverse, the batteries are directly energized in series as they are, and a short circuit or heat generation may occur, resulting in a dangerous state.
Therefore, some structure for preventing reverse loading is required.

In view of the above, in order to prevent such reverse loading, the invention according to claim 1 is a dry cell spacer that accommodates a smaller-diameter dry cell. The spacer case has a lid that can be opened and closed, and the lid is opened to accommodate the dry cell. This is a dry cell spacer that can be used as a spacer by electrically connecting a dry cell by closing the lid, and the back side of the lid has a bent negative electrode that should be electrically connected to the negative electrode of the stored dry cell An electrode connection fitting, a protrusion between the negative electrode connection fitting and the lid, and a protruding positive electrode connection fitting in a protruding shape to be electrically connected to the positive electrode of the dry battery at the bottom of the case And a protrusion for preventing reverse loading around the protrusion of the positive electrode electrode fitting, and the protrusion for preventing reverse loading is at least positive. It is higher than the height of the protruding portion of the electrode connection fitting, and is equal to or slightly lower than the combined height of the protruding portion of the positive electrode connecting fitting and the protruding shape of the positive electrode cylindrical shape of the dry battery to be stored. It is a dry cell spacer made of a protruding protrusion for preventing reverse loading having a height, and the above-described problems can be solved by the invention.

In addition, as in the invention according to claim 2, in the dry cell spacer for storing a smaller-sized dry cell, the case of the spacer has a lid that can be opened and closed, and the lid is opened to store the dry cell, and the lid is closed. The dry cell spacer can be used as a spacer by electrically connecting the dry cell to the bottom of the case, and has a bent negative electrode connection fitting in a bent shape to be electrically connected to the negative electrode of the stored dry battery at the bottom of the case. Protrusion between the negative electrode electrode fitting and the bottom of the case, and the protruding part of the positive electrode electrode fitting with a protruding shape that should be electrically connected to the positive electrode of the stored dry battery on the back side of the lid And a protrusion for preventing reverse loading around the protruding portion of the positive electrode electrode fitting, and the protrusion for preventing reverse loading is at least a positive electrode. It is higher than the height of the protruding portion of the pole connection fitting, and is equal to or slightly lower than the combined height of the protruding portion of the positive electrode connecting fitting and the protruding shape of the cylindrical shape of the positive electrode of the battery to be stored. It is a dry cell spacer composed of a protruding protrusion for preventing reverse loading having a height, and the above-mentioned problem can be solved by such an invention.

Alternatively, as in the invention according to claim 3, the battery to be housed is composed of a dry battery spacer which is at least two dry batteries, and such an invention may be used.
Furthermore, the invention according to claim 4 is a dry cell spacer in which the dry cell spacer is matched to the shape of a single dry cell, and the dry cell to be stored is an AA dry cell battery. Can be used.

In these cases, a dry cell spacer using a wound spring-shaped negative electrode electrode fitting may be used instead of the bent negative electrode electrode fitting as in the invention according to claim 5.
Alternatively, as in the invention according to claim 6, instead of the dry battery, a dry battery spacer using a secondary battery approximating the shape of the dry battery may be used.

With regard to the dry cell spacer according to the present invention, when a single cell or other type of battery is used in a device, a smaller standard dry battery is incorporated in a spacer of the size of a large dry cell such as a single standard. In particular, two dry batteries can be installed inside.
In this case, the present invention can solve the problem caused by the mistake in installing the dry battery, particularly when the dry battery is installed.

In other words, when installing dry batteries in equipment, the positive and negative poles are often placed in opposite orientations, but for dry battery spacers, multiple batteries must be installed in the positive and negative poles. Are arranged in such a manner that the positive electrode and the negative electrode are separated from each other in the direction of the respective ends and are in contact with the respective electrode fittings.
Alternatively, it is possible to install them by mistake even if they are mounted alternately.

Such a mounting mistake may cause a short circuit or heat generation, which may be a dangerous state. However, the reverse loading can be prevented by adopting the configuration of the present invention.
In other words, when reverse loading is performed, there is a great effect that current is not supplied and the lid is not closed.
Therefore, the device can be used safely.
In particular, by using the inventions according to claims 1 and 2, the protruding portion of the positive electrode connection fitting prevents electrical connection of the positive electrode of a dry battery that has been incorrectly installed, and controls energization.

Also, a dry battery to be mounted in the spacer can be mounted with elastic pressure by means of a bent negative electrode connection fitting.
Furthermore, the invention according to claim 3 can be used for a dry cell spacer for mounting two or more dry cells.
Accordingly, the attached dry battery can have a large capacity.
According to the invention of claim 4, the dry cell spacer is a single standard dry cell spacer, and the dry cell mounted in the spacer is the most commonly used AA standard dry cell, providing the most convenient combination. it can.

According to the fifth aspect of the invention, instead of the bent negative electrode electrode fitting, a widely used wound spring shaped negative electrode electrode fitting can be used.
Furthermore, the dry battery to be mounted according to the invention of claim 6 is not limited to a so-called primary battery, and a secondary battery having the same shape as that of the dry battery can be used.

The perspective view of an example of the spacer of the dry cell concerning the present invention The figure which shows the state which opened the cover of the case of the dry-cell spacer shown in FIG. Sectional drawing of an example of the state which opened the lid | cover of the dry battery spacer which concerns on this invention The figure which showed an example of the back of the lid in the state where the lid was opened, and the bottom of the case The figure which shows an example of the state with which the AA battery is mounted in the dry battery spacer which concerns on this invention, and the lid | cover is closed. The figure which shows an example of the state with which the AA battery is mounted in the dry battery spacer which concerns on this invention, and the lid | cover is closed. The figure which shows an example of the state which does not close a lid | cover by mistake | installing the AA battery in the dry cell spacer which concerns on this invention

FIG. 1 is a perspective view of a spacer of a dry battery according to the present invention, and includes a case 1 having a size of a single standard dry battery.
In the configuration shown in this figure, the lid 10 is in a closed state and can be used as it is as a single dry battery.
In the upper part, a flat plate-like negative electrode fitting 22 is clearly shown.
Although not shown in the drawing, a positive electrode metal fitting is disposed on the bottom which is the opposite surface.
In such a case, two AA batteries are accommodated.

FIG. 2 is a view showing a state in which the lid 10 of the case 1 which is the dry cell spacer according to the present invention shown in FIG. 1 is opened, and the back side of the lid 10 is a minus-shaped metal fitting for spring-like contacts in a bent state. It has a pole electrode fitting 20 and a fitting to which two electrodes for mounting two dry batteries are to be connected respectively.
Since the negative electrode electrode fitting 20 of the contact fitting is arranged in a bent state, the built-in dry battery can be firmly and elastically attached by this elasticity.
In this case, the negative electrode of the dry battery is located in the lid 10 portion, and electrical connection is achieved by the negative electrode electrode fitting 20.

Each of the negative electrode electrode fittings 20 is electrically connected by a connection fitting 21, and further, an electrode fitting 22 electrically connected thereto is arranged on the surface of the case 1.
The negative electrode electrode fitting 20 is arranged in a bent state as described above, the bent portion of the bent electrode is located on the back surface of the lid 10, and one end thereof is installed in a state having a distance from the lid 10. .
Furthermore, it is in contact with the negative electrode of the AA battery stored in the one end direction, and when the lid is closed, the one end of the bent negative electrode electrode fitting 20 is pressed in the direction of the cover to be elastically mounted. It becomes.

In this case, the negative electrode electrode fitting 20 has a protrusion 11 on the back surface of the lid corresponding to a position bent in one end direction and away from the lid 10.
This is to prevent the negative electrode electrode fitting 20 from being bent when it is pressed in the direction of the lid 10 or exceeding the repulsive force caused by bending to increase the degree of bending and prevent it from returning. Can be prevented.
Furthermore, as will be described later, the lid 10 can be closed if a dry battery is mounted in a fixed position at the time of mounting. It is possible to prevent the lid 10 from being completely closed while preventing the negative electrode electrode fitting 20 from being bent by the protrusion 11.

Therefore, when a reverse loading state occurs, the inserted AA battery is not exactly inside the case, but slightly protrudes, preventing the lid 10 from being closed in the wrong battery mounting state and reverse loading. The state can be revealed.
Therefore, the user can understand reverse loading and can quickly perform normal mounting.
In addition, it has the

locking tools

12 and 13 for maintaining the cover 10 in the closed state.

FIG. 3 is a cross-sectional view showing a state in which the lid 10 as an example of the dry cell spacer according to the present invention is opened.
The lid 10 has a protruding portion 11 in the inner direction thereof, and is electrically connected by a negative electrode electrode fitting 20 and a connecting fitting 21 subsequently, and further, a negative electrode fitting on the surface of the lid 10. 22.
The negative electrode electrode fitting 20 is arranged in a bent state, and has a projection 11 on the back surface of the lid located between the negative electrode electrode fitting 20 and the back surface of the lid 10.

In this configuration, the protrusion 11 has a triangular shape corresponding to the bent state of the negative electrode electrode fitting 20.
Of course, the projection 11 regulates the fixed position of the battery to be accommodated and prevents the negative electrode electrode fitting 20 from being bent. The projection 11 may have another shape instead of the triangular shape.
The lid 10 can be opened and closed by the locking tool 12 and can be kept in a tightly closed state.

Further, the case 1 has the introduction rib 14 in the case 1 so that the position where the dry battery is attached is exactly within the fixed position in the case.
This makes it possible to accurately position the dry battery.
Naturally, a partition such as a wall may be formed inside the case itself instead of the rib shape to guide the dry battery mounting position to a fixed position.
Furthermore, the bottom of the case 1 has a positive electrode electrode fitting 30 that is electrically connected to the positive electrode of the dry battery, and this portion is electrically connected to the positive electrode of the dry battery.

The positive electrode connection fitting 30 is electrically connected by a connection fitting 31 and is further protruded from the case bottom surface by an electrode fitting 32 electrically connected thereto.
A positive electrode protruding in a cylindrical shape is formed in the same manner as the positive electrode of a normal single dry battery.
In this case, the positive electrode electrode fitting 30 is configured to have a protruding portion for electrical connection with the positive electrode of the AA dry battery.
Further, around the projecting portion of the positive electrode electrode fitting 30, at least the height of the projecting portion, and the height of the projecting portion and the dry battery to be stored, that is, the AA dry battery in this figure, the cylindrical projecting shape of the positive electrode. A protrusion 4 for preventing reverse loading having a protruding shape having a height that is equal to or slightly lower than the combined height is provided.

The reverse loading prevention protrusion 4 is provided at the bottom of the case 1 corresponding to at least the surface portion around the positive electrode in the positive electrode direction, for example, the position around the shoulder or the surface region around the positive electrode when the AA battery is mounted. Yes.
Therefore, when the AA battery is inserted and mounted, and the positive electrode of the AA battery is mounted in the bottom direction, the reverse loading prevention projection does not contact the AA battery.

On the other hand, when the AA dry battery is inserted and attached with the negative pole facing the bottom, the negative pole face collides with the reverse loading preventing projection 4 and further insertion is prevented.
Accordingly, the positive electrode of the AA dry battery protrudes outward from the insertion opening in the direction of the lid 10 of the case 1 and is mounted so as to protrude outward from the case rather than a fixed position.
Accordingly, the lid is not closed by the protruding portion of the plus pole.

FIG. 4 is a view clearly showing the back surface of the lid 10 and the bottom surface of the case 1 with the lid 10 opened.
As shown in the figure, the lid 10 has a projection 11 and a negative electrode electrode fitting 20, and has a locking tool 12 and a locking tool 13 for closing the lid.
The bottom of the case 1 has a storage location for storing two AA batteries and an introduction rib 14 for guiding it to a fixed position.
Furthermore, it has a positive electrode connection fitting 30, a connection fitting 31, and an electrode fitting 32 for electrical connection with the positive electrode of the inserted AA battery.

FIGS. 5 and 6 are views showing an example of a state in which the AA battery is correctly installed in the dry battery spacer according to the present invention and the lid 10 is closed.
As shown in this figure, the AA batteries are housed in a case, and the negative poles of the two dry batteries are in contact with the negative pole electrode connection fitting 20 in an elastic state.
Further, a plate-shaped electrode fitting 22 is provided outside the case via the connection fitting 21.
Further, the positive electrode of the AA battery is in contact with the positive electrode electrode fitting 30, and is electrically connected and constitutes an electrode fitting 32 that protrudes from the case bottom surface via the connector 31.

Therefore, two AA batteries are stored in parallel, and are stored in a case of a single dry battery, and can be stored in the battery periphery of various devices for the single dry battery. At the same time, power can be supplied by the dry cell spacer by the electrode fitting.
In this case, the reverse loading prevention protrusion 4 is not in contact with the dry battery, and the positive electrode of the dry battery is in contact with the positive electrode connection fitting 30.

FIG. 7 is a diagram illustrating an example of a reverse loading state.
That is, when one dry battery is mounted in the reverse direction, the negative electrode surface of the dry battery collides with the reverse loading prevention protrusion 4 to prevent further insertion.
Therefore, the positive electrode portion of the AA battery protrudes in the outward direction, which is the outer direction of the case, and the negative electrode electrode fitting 20 on the back side of the lid 10 becomes more bent due to the protruding portion of the positive electrode. The protrusion 11 between the portion and the lid prevents the bending more than necessary, and the lid 10 does not close.
The locking tool 13 is also not locked at the fixed position.

With this configuration, since the lid 10 is not closed, the reverse loading state can be recognized by anyone, and further, in this state, the occurrence of a short circuit or a heat generation state can be prevented without energization.
This is provided with a reverse loading prevention projection 4 provided around the protruding portion of the positive electrode connection fitting 30, which is at least higher than the height of the protruding portion of the positive electrode connection fitting 30. The protrusion 4 has a height that is equal to or slightly lower than the combined height of the protruding portion of the positive battery and the cylindrical protruding height of the dry battery to be stored. This is because the dry battery protrudes from the height of the protrusion of the positive electrode portion of the AA dry battery to a level slightly lower than this, and is attached.

Providing a battery spacer that is an epoch-making invention capable of preventing reverse loading when mounting an AA battery to be stored as described above, which is extremely safe and can promptly inform the user of the reverse loading state Is possible.
In this figure, the dry battery to be stored is an AA dry battery, and the spacer-shaped dry battery is shown as a single dry battery. However, the present invention is not limited to this, but other standards such as a single dry battery, a single dry battery, etc. It may be one that accommodates other standard dry batteries, or the spacer itself may use a spacer having another standard shape, such as a single AA dry battery or AA dry battery.

It is sufficient that the standard of the dry battery to be stored at least uses a smaller dry battery than the standard of the spacer dry battery.
Moreover, although the dry battery to store is based on two, three or more may be sufficient.
Furthermore, instead of the bent negative electrode electrode fitting, a wound spring-like negative electrode electrode fitting may be used.
Even if it comprises in this way, it can fully connect electrically and can accommodate the dry battery to accommodate with elasticity.
Furthermore, in the above description, an example is shown in which the lid has a negative electrode electrode fitting and the case bottom has a positive electrode electrode fitting, but the present invention is not limited to this. The negative electrode electrode fittings may be arranged at the bottom of the case, and other parts may be arranged corresponding to each.

Even if configured in this way, it can function satisfactorily as a dry cell spacer, and can be arbitrarily determined at the position of the lid of the spacer, and is only concerned with the orientation of the dry cell in the case. Any one of the electrodes may be connected, and any other electrode in the case may be used as long as the electrode has a corresponding electrode.
Therefore, for example, at the bottom of the case, it has a bent negative electrode connection fitting that should be electrically connected to the negative electrode of the stored dry battery, and has a protrusion between the negative electrode connection fitting and the case bottom, On the back side of the lid, there is a protruding portion of a protruding positive electrode connection fitting that should be electrically connected to the positive electrode of the stored dry battery, and for back loading prevention around the protruding portion of the positive electrode connection fitting It may have a protrusion.

In particular, in this case, the protrusion for preventing reverse loading is at least higher than the height of the protruding portion of the positive electrode electrode fitting, and the height of the protruding portion of the positive electrode electrode fitting is equal to the cylinder of the positive electrode of the dry battery, for example, an AA dry battery. When the battery is stored in the reverse direction by being a protrusion for reverse loading prevention having a protruding shape having a height that is the same as or slightly lower than the combined height of the protruding shapes, the dry battery Is in a state of protruding from the case and the lid cannot be closed.
Further, the positive electrode of the dry battery in the lid is not in contact with the positive electrode electrode fitting by the reverse loading prevention protrusion provided on the lid, and electricity is not connected anywhere.

Further, the structure shown in FIGS. 1 to 7 for the dry cell spacer according to the present invention is a structure in which the lid is connected to the upper part of the main body via a hinge and can be freely opened and closed with a locking tool. The lid may be a screw-type lid or a lid that is detachably mounted with a locking tool or the like, for example, a lid having another configuration such as a cap-shaped lid.
Therefore, for example, when a screw-in type lid is used, it may have a connection fitting connected to the dry battery directly or via another member on the back side of the screw lid.
In this way, the lid is screwed in and attached, and in this state, the power is supplied. On the other hand, when the dry battery is reversely loaded, it cannot be properly loaded and is not energized.

Further, in the case of reverse loading of the dry battery, if the lid does not close properly, the user understands the reverse loading itself.
Next, with regard to the cap-type lid, for example, a cap that can be removed from the body of various shapes and has attachment members such as various fasteners and various fitting portions, so that it can be detachably attached to the body. The same applies to the case of using a formula lid.
In other words, by attaching a lid, power is supplied in this state. On the other hand, when a dry battery is reversely loaded, it cannot be properly loaded and is not energized.

Furthermore, if the lid does not close when the dry battery is reversely loaded, the user understands the reverse loading itself.
The lid in the present invention means a lid shape configured to cover a part of the housing, and is not necessarily limited to the one end surface portion of the cylindrical housing that can be removed, but a part of the one end surface portion. It may be one that opens and closes or attaches and detaches freely, or may be attached to a portion other than the one end surface portion.
Furthermore, the shape of the casing may be used for a casing made of various arbitrary shapes.

Next, the connection fitting on the back of the upper lid of the present invention may be provided directly on the back of the lid or may be provided via another member. Of course, both are included.
Therefore, it is possible to arbitrarily set the storage location of the dry battery in accordance with the shape of the various casings, and it is only necessary that the connection fittings be arranged so as to be interlocked with attachment of the lid, for example, opening and closing of the lid. As long as it is attached to the back of the lid, which is the inside of the housing, as long as it has a connection fitting directly or via another member as described above.

Next, in the present invention, the dry battery usually refers to a primary battery, but the dry battery used in the present invention may also be used for a cylindrical secondary battery that approximates the shape of the dry battery.
Even secondary batteries that are widely used rechargeable batteries have the same shape as dry batteries, and are used for electrical equipment used in dry batteries as a substitute for dry batteries. You may use for a battery.
Therefore, not only the shape of the AA standard dry battery but also a secondary battery approximating the shape of another standard dry battery may be used. In addition, a so-called water battery that generates power by injecting water is treated as being included in the secondary battery in the present specification, and such a water battery can also be used in the present invention as a secondary battery. .

DESCRIPTION OF SYMBOLS 1 Case 10 Cover 11 Protrusion part 12 Locking tool 13 Locking tool 14 Introducing rib 20 Negative electrode electrode fitting 21 Connecting metal 22 Negative electrode metal fitting 30 Positive electrode connecting metal 31 Connecting metal 32 Positive electrode metal fitting 4 Reverse Loading prevention protrusion

Claims

In the battery spacer that accommodates smaller batteries,
The spacer case 1 has a lid 10 that can be opened and closed, and the lid 10 is opened to store a dry cell, and the lid 10 is closed to electrically connect the dry cell to be used as a spacer. ,
On the back side of the lid 10, there is a bent negative electrode connection fitting 20 that is to be electrically connected to the negative electrode of the stored dry battery, and a protrusion 11 is provided between the negative electrode connection fitting 20 and the lid 10. Have
The bottom of the case 1 has a protruding portion of a positive electrode electrode fitting 30 having a protruding shape to be electrically connected to the positive electrode of the dry battery, and a reverse loading preventing protrusion 4 around the protruding portion of the positive electrode electrode fitting 30. Having
The protrusion 4 for preventing reverse loading is at least higher than the height of the protruding portion of the positive electrode connection fitting 30 and protrudes in the cylindrical shape of the positive electrode of the battery to be accommodated with the height of the protruding portion of the positive electrode connection fitting 30. A dry cell spacer characterized by comprising a protrusion 4 for preventing reverse loading having a protruding shape having a height equal to or slightly lower than the combined height.
In the battery spacer that accommodates smaller batteries,
The spacer case 1 has a lid 10 that can be opened and closed, and the lid 10 is opened to store a dry cell, and the lid 10 is closed to electrically connect the dry cell to be used as a spacer. ,
The bottom of the case 1 has a bent negative electrode connection fitting 20 that is to be electrically connected to the negative pole of the stored dry battery, and has a protrusion 4 between the negative electrode connection fitting 20 and the bottom of the case 1. And
On the back side of the lid 10, there is a protruding portion of a protruding positive electrode connection fitting 30 having a protruding shape to be electrically connected to the positive electrode of a stored dry battery, and reverse loading prevention is provided around the protruding portion of the positive electrode connection fitting 30. A projection 4 for
The protrusion 4 for preventing reverse loading is at least higher than the height of the protruding portion of the positive electrode connection fitting 30 and protrudes in the cylindrical shape of the positive electrode of the battery to be accommodated with the height of the protruding portion of the positive electrode connection fitting 30. A dry cell spacer characterized by comprising a protrusion 4 for preventing reverse loading having a protruding shape having a height equal to or slightly lower than the combined height.
3. The dry cell spacer according to claim 1, wherein at least two dry cells are to be stored.
The dry cell spacer according to any one of claims 1 to 3, wherein the dry cell spacer is a dry cell spacer adapted to the shape of a single dry cell, and the dry cell to be stored is an AA dry cell.
The dry cell spacer according to any one of claims 1 to 4, wherein a wound spring-shaped negative electrode electrode fitting 20 is used instead of the bent negative electrode electrode fitting 20.
6. The dry cell spacer according to claim 1, wherein a secondary cell approximating the shape of the dry cell is used instead of the dry cell.