JPH10134786A - Battery case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an electrode from coming into contact with at least one connection terminal on a battery case in the case that an electrode of a battery is oppositely inserted into the battery case. SOLUTION: A guard 12 having a insulation frame 15 that is higher than a protrusion height of a contact 10 protruded on a face of a positive electrode side connection terminal 5 and that is lower than a protrusion height from a battery main body end face of a positive electrode in a battery is formed, inserted into the positive electrode side connection terminal 5 of the battery case, and fixed by a hook claw 11, whereby a gap between a contact face 10 of the positive electrode side connection terminal 5 of the case and the negative electrode face of the battery is generated in the case that the electrode direction of the battery is attached in the opposite direction to the battery case.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a battery case for accommodating and electrically connecting a rod-shaped battery.

[0002]

2. Description of the Related Art As shown in FIG. 10, for example, a conventional battery case includes a plate spring-shaped anode connection terminal 21 and a cathode connection terminal 22 formed by bending a conductive and elastic plate material.
Are fixed to both wall surfaces in the battery case 1 and the battery 2
At the time of mounting, the anode-side connection terminal 21 shown by a two-dot chain line
By pressing and inserting, the terminals 21 and 22 are configured to resiliently contact each of the poles 3 or 4 of the battery 2.

[0003]

However, the conventional battery case 30 has no problem if the battery 2 is mounted in the correct orientation as shown in FIG. 10, but as shown in FIG. Even if the battery is inserted in the opposite direction, the two poles 3 and 4 of the battery 2 may be inserted in the battery case 30 in the opposite direction.
Current can flow in the opposite direction because it can be mounted in contact with each of the two terminals 21 and 22.
There is a problem that a device using the battery 2 may be damaged.

[0004] Therefore, the present invention has been made in view of the above problems, and when the battery electrode is inserted in a reversed manner,
An object of the present invention is to provide a battery case in which a battery electrode is prevented from contacting at least one of an anode and a cathode connection terminal on the battery case side.

[0005]

In order to achieve the above object, a first aspect of the present invention is to fold a substantially rectangular plate material having conductivity and elasticity so as to elastically contact with an anode or a cathode of a battery and electrically. In a battery case having a connection terminal to be connected, when the electrode direction of the battery is mounted in the battery case in an opposite direction to the battery case, contact of the electrode with at least one of the connection terminals on the cathode side or the anode side of the battery case is performed. And a guard for preventing reverse insertion contact. Thereby, when the battery electrode is inserted in the battery case in reverse, the cathode surface of the battery contacts the guard,
When a gap is formed between the surface of the anode-side connection terminal and the cathode surface of the battery, contact between the two becomes impossible. Claim 2
The guard covers the back surface of the anode connection terminal of the battery case and is parallel to the front surface connected to the back surface.
Along the sides, using an insulating material, a frame shape that is higher than the surface position of the anode contact portion of the battery and lower than the protruding height of the battery anode from the end of the battery body is formed. It is formed so that it can be inserted from the open end and hooked on the anode connection terminal side. Thereby, the guard formed in the frame shape is in a state where the contact portion of the anode-side connection terminal is exposed, and the height of the frame on the anode-side connection terminal surface is lower than the protruding height of the battery anode from the end of the battery body. For,
It is possible for the anode of the battery to come into contact with the anode-side connection terminal of the battery case.If the battery electrode is inserted in reverse, the battery's cathode surface contacts the guard, making electrical connection impossible. Become.

[0006]

1 to 9 show an embodiment of the present invention. FIG. 1 is a top view of a battery case, and FIG.
FIG. 3 is a cross-sectional view as viewed in the direction of the arrow B in FIG. 1, FIG. 4 is a cross-sectional view as viewed in the direction of the arrow C in FIG. 1, FIG. 5 is a cross-sectional view as viewed in the direction of the arrow D in FIG. 7 is a perspective view of a guard, FIG. 8 is a perspective view of a common connection terminal, and FIG. 9 is a perspective view of a cathode-side connection terminal.

FIG. 1 shows an example of a battery case in which two batteries 2 can be inserted. A common connection terminal 18 is provided at the right end in the battery case 1 and an independent connection terminal is provided at the left end. 5 and 13 are provided, and the anode 3 of the battery 2 is provided on the upper side.
Is mounted leftward, and the anode 3 of the battery 2 is mounted rightward, that is, in series, on the lower side. In addition, 2a, 2 in the figure
FIG. 2B is a guide view of the battery 2 mounting direction printed on the bottom surface of the battery case 1.

The common connection terminal 18 provided at the right end in the battery case 1 is formed by bending a plate material having conductivity and elasticity, for example, a plate material of phosphor bronze into a U-shape as shown in FIG.
The two contact portions 10 where the anodes 3 or the cathodes 4 of the two batteries 2 are in contact with each other are projected in a hemispherical shape, and the battery case 1
Is fixed in a state where the end wall 1a (FIG. 3) is sandwiched.

The connection terminal provided on the left end of the upper stage of the battery case 1 is an anode connection terminal 5 shown in FIG. 6, and this connection terminal 5 is made of a cylinder which generates elasticity by using the same material as the common connection terminal 18. A bent portion 6 having a rectangular shape is formed, and a vertical portion 7 connected to the bent portion 6 is fixed to the side wall 1b of the battery case 1 as shown in FIG. The connection terminal 8 is provided. Note that an opening 1d is formed in a portion of the battery case 1 in which the external connection terminal portion 8 is mounted.

On the other hand, an open end connected to the cylindrical bent portion 6 and formed in a plane is formed as a leaf spring-like terminal portion 9 exhibiting elastic force, and the anode of the battery 2 contacts the surface thereof. The protruding contact portion 10 is formed in a hemispherical shape, and a locking claw 11 for fixing a guard 12, which will be described later, is provided on the rear surface side.

A connection terminal provided on the left side of the lower part of the battery case 1 is a cathode-side connection terminal shown in FIG. 9, and is made of a material similar to that of the common terminal 18 and has a cylindrical bent portion for generating elasticity. 6, and a vertical portion 7 connected to the bent portion 6 is fixed to the side wall 1b, and a horizontal portion 8 is formed for an external connection terminal in the same manner as the anode-side connection terminal 5. In this case, since the width of the terminal portion 14 does not require the guard 12 to be manually provided, the terminal portion 9 of the anode-side connection terminal 5 is not required.
, And a hemispherical contact portion 10 with which the cathode of the battery 2 comes into contact is projected on the surface thereof.

According to the present invention, a guard 12 formed as shown in FIG. 7 is provided as shown in FIG. 6 in order to prevent the battery 2 from being reversely brought into contact with the anode connection terminal 5 in the battery case 1 having the above configuration. It is to be attached to. The guard 12 is made of an insulating material, such as bakelite or plastic, and is higher than the protruding height of the contact portion 3 on the surface of the terminal portion 9 along two parallel sides of the rectangular terminal portion 9, and The battery anode forms a frame 15 having a height H (FIGS. 6 and 7) lower than the protruding height from the battery body end face 2a, and the back surface thereof is integrally formed with a flat plate 19;
A groove 16 is formed in a connection portion with the terminal portion 9 so that it can be inserted from the end of the terminal portion 9 through the groove 16. Further, a hooking hole 17 is formed at a position corresponding to the hooking claw 11 formed on the terminal portion 9 side, and the hooking claw 11 falls into the hooking hole 17 when being inserted into the terminal portion 9 and is hooked. Thus, the guard 12 is prevented from falling off from the terminal portion 9.

With respect to the battery case 1 having the above structure, the battery 2
Is inserted in the correct orientation, the height of the anode 3 protruding from the battery body in the battery 2 is
Is larger than the height H, the anode of the battery 2 can contact the contact portion 10 of the anode-side connection terminal 5 of the battery case 1 as shown in FIGS. 1 and 2.

When the electrode 3 of the battery 2 is inserted in the reverse direction with respect to the battery case 1, the cathode surface 4 of the battery 2 comes into contact with the surface of the frame 15 of the guard portion 12 so that the cathode surface 4
A gap is created between the contact portion 10 of the anode-side connection terminal 5 and the contact portion 10 of the anode-side connection terminal 5, so that the contact between the two is impossible.

In this embodiment, since two batteries 2 are mounted in series, if the guard 12 is manually provided for one anode connection terminal 5 in the battery case 1, the battery 2 can be mounted. Although the purpose of preventing reverse insertion contact can be achieved, when the batteries 2 are mounted in parallel, each of the anode connection terminals 5
A similar effect can be obtained by manually providing a guard.

[0016]

According to the present invention, by providing a guard for preventing the battery from being inserted into the anode terminal of the battery case at the anode side connection terminal, the battery can be mounted in the battery case in the opposite direction. In this case, a gap is formed between the cathode surface of the battery and the anode-side connection terminal surface of the battery case, so that contact between the two becomes impossible. Therefore, if the battery is not properly mounted, the battery is not electrically connected, and it is possible to prevent the device from being damaged due to the reverse mounting of the battery.

[Brief description of the drawings]

FIG. 1 is a top view of a battery case according to Embodiment 1 of the present invention.

FIG. 2 is a sectional view taken in the direction of arrow A in FIG. 1;

FIG. 3 is a sectional view taken in the direction of arrow B in FIG. 1;

FIG. 4 is a sectional view taken in the direction of arrow C in FIG. 1;

FIG. 5 is a sectional view taken along the arrow D in FIG. 1;

FIG. 6 is a perspective view of an anode-side connection terminal provided with a guard.

FIG. 7 is a perspective view of a guard.

FIG. 8 is a perspective view of a common connection terminal.

FIG. 9 is a perspective view of a cathode-side connection terminal.

FIG. 10 is an explanatory view of a conventional battery case.

FIG. 11 is an explanatory view of a conventional battery case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery case 2 Battery 3 Battery anode 4 Battery cathode 5 Anode side connection terminal part 6 Circular shape 7 Fixed part 8 External connection terminal 9 Terminal part 10 Contact part 11 Hook claw 12 Guard 13 Cathode side connection terminal 14 Terminal part 15 Frame 16 Groove 17 Hook hole 18 Common connection terminal 19 Flat plate

Claims (2)

[Claims] 1. A battery case having a connection terminal that bends a substantially rectangular plate material having conductivity and elasticity to elastically contact an anode or a cathode of a battery and electrically connect the battery case to the battery case. A battery case comprising a guard for preventing a reverse insertion contact that makes it impossible to contact an electrode with at least one of connection terminals on a cathode side or an anode side of a battery case when the electrodes are mounted in a reverse direction. 2. The battery according to claim 1, wherein the guard covers the back surface of the anode-side connection terminal of the battery case, and is made of an insulating material along two sides parallel to the front surface connected to the back surface. It is possible to form a frame that is higher than the surface position of the part and lower than the protruding height of the battery anode from the end of the battery body, and can be inserted from the open end of the anode connection terminal and hooked to the anode connection terminal side 2. The battery case according to claim 1, wherein the battery case is formed.