JPH1012205A - Battery housing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery housing device by which metal mold cost can be reduced and which has a terminal part whose power quantity can be easily changed and which can be molded in an optional shape. SOLUTION: A terminal part 8 is composed of an insulator 10 molded by a resin mold and a linear spring composed of a conductive material incorporated into this insulator 10. The insulator 10 is composed of an almost T-shaped upper plate part 14, a lower plate part 16 positioned under this upper plate part 14 and an intermediate plate part 18 positioned between the upper plate part 14 and the lower plate part 16. A fixed side part 20 and a movable side part 22 of the linear spring are arranged on an under surface of the intermediate plate part 18. A curved part 24 is locked on a locking part 32 formed in the lower plate part 16, and the movable side part 22 is arranged so as to be optionally movable downward, and in a contact part 28 of the movable side part 22, its tip part projects above the intermediate plate part 18 from a defect part 33, and is exposed in a battery case 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery storage device, and more particularly, to a structure of a terminal portion for a battery contact attached to a battery case.

[0002]

2. Description of the Related Art In most cases, a terminal portion for a battery contact used in a battery case of a conventional battery storage device has a structure in which a leaf spring processed by a mold is attached to the battery case.

[0003]

The terminal portion for the battery contact using the leaf spring as described above requires a mold for forming the leaf spring, and when the force of the leaf spring is changed, the mold is changed. There is a need to. Further, since the shape of the leaf spring that can be formed is limited, it is difficult to process the leaf spring into an arbitrary shape according to the type of the battery. The present invention has been made by paying attention to the above points, and by using a wire spring for the terminal portion, the cost of the mold can be reduced, the amount of force of the spring can be easily changed, and the terminal can be formed into an arbitrary shape. An object of the present invention is to provide a battery storage device including a unit.

[0004]

In order to achieve the above object, the present invention relates to a battery storage device in which a terminal portion is provided at the bottom of a battery case, wherein the terminal portion is attached to the bottom of the battery case. And a linear spring made of a conductive material mounted on the insulator. The linear spring has a contact portion protruding inward of the battery case from the insulator. It is characterized by having been done.

According to the present invention, when a battery is inserted, the contact portion of the battery comes into contact with the contact portion of the linear spring to push down the linear spring and apply a constant load to the contact portion. Since the terminal portion is formed of a linear spring, the followability is good, and the force of the spring can be changed only by changing the length and diameter.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. In FIG. 1, a pop-up coil spring 6 is attached to one end of a battery case 4 having a battery storage portion 2 of a battery storage device 1, and a terminal portion 8 is provided at a bottom portion. The terminal portion 8 includes an insulator 10 molded by a resin mold and a linear spring 12 made of a conductive material incorporated in the insulator 10.

The insulator 10 includes a substantially T-shaped upper plate portion 14,
It comprises a lower plate 16 located below the upper plate 14 and an intermediate plate 18 located between the upper plate 14 and the lower plate 16. As shown in FIG. 1, the intermediate plate portions 18 are respectively located on both outer sides of the linear portion 1402 of the upper plate portion 14, and the lower plate portion 16 is located outside the upper plate portion 14 and the intermediate plate portion 18. I have. The upper plate portion 14, the intermediate plate portion 18, and the lower plate portion 16 are integrally formed by a wall portion 19 extending in the thickness direction of the plate portions, and the lower plate portion 16 is attached to the bottom of the battery case 4. (See FIG. 2).

The linear spring 12 is formed by bending, and as shown in FIG. 3, a fixed side portion 20 and a movable side portion 22 which extend linearly in parallel with each other, and a fixed side portion 20. A curved portion 24 connecting the base of the movable side 22 to the base of the movable side 22, a bent portion 26 bent downward at a substantially right angle to a tip of the fixed side 20 and a curved upward at the tip of the movable side 22. And protruding contact portions 28.

The fixed side portion 20 and the movable side portion 2 of the linear spring 12
2 is arranged on the lower surface of the intermediate plate portion 18. The curved portion 24 is locked by a locking portion 32 formed on the lower plate portion 16, and the fixed piece portion 20 is positioned such that the distal end side is located on the convex piece 1602 of the lower plate portion 16 so that it cannot move downward. Have been. The bent portion 26 of the fixed side portion 20 protrudes downward from the lower plate portion 16 and is fixed to the wiring board 42 attached to the lower portion of the battery case 4 by soldering.

The movable side portion 22 includes a notch 33 formed from the tip of the intermediate plate portion 18 to the lower plate portion 16 and the lower plate portion 1.
6 can be arbitrarily moved downward through the opening 17. The contact portion 28 of the movable side portion 22 is
The tip of the battery case 3 projects above the intermediate plate 18 and is exposed in the battery case 4. The linear springs 12 having the same shape are provided on the lower surfaces of the left and right intermediate plate portions 18 respectively, and constitute a positive terminal portion and a negative terminal portion.
The insulator 10 is molded by a resin mold, and the linear spring 12 is fitted into the insulator 10 after molding, whereby the linear spring 12 is incorporated into the insulator 10.

The battery 34 applied to the battery storage device 1
Are the positive and negative contact portions 3 on the side step 36.
This is a lithium battery of the type in which No. 8 is formed. The battery 34 is inserted from the right side of the battery case 4 into the battery case 4.
2 is inserted in the left direction (the direction of the arrow) along the side wall 40 of FIG. In this position, the contact portion 38 of the battery 34 contacts the contact portion 28 of the linear spring 12. After the battery 34 is inserted, a lid (not shown) is attached to the upper part (the right side in FIG. 1) of the battery case 4, whereby the contact part 28 is pressed by the contact part 38. Contact 38
When the contact portion 28 is pressed, the movable side portion 22
2 is pressed down as indicated by the chain line in FIG.
8 conducts when a load is constantly applied.

As described above, in the battery storage device 1 of the present embodiment, since the terminal portion 8 is constituted by using the insulator 10 and the linear spring 12, a mold such as a leaf spring is not required. Die cost and design change cost are reduced. In addition, the movable piece 2
By changing the length of 2, or by changing the diameter of the linear spring 12, the amount of force of the spring can be easily changed, and
It is easy to mold and can be molded into any shape. In addition, since the mounting operation is completed only by fitting the linear spring 24 into the insulator 10, the terminal portion 8 can be easily assembled.

In the embodiment, the case where the battery is a lithium battery has been described. However, the battery to which the present invention is applied is not limited to the lithium battery, but may be used for other secondary batteries and primary batteries other than the lithium battery. The shape of the insulator 10 and the shape of the linear spring 12 are variously changed depending on the battery to be applied.

[0014]

As described in detail above, the present invention relates to a battery housing device having a terminal portion provided on the bottom of a battery case, wherein the terminal portion is an insulator attached to the bottom of the battery case. And a linear spring made of a conductive material mounted on the insulator, wherein the linear spring is formed with a contact portion projecting inward of the battery case from the insulator. And That is, since the terminal portion is configured using a linear spring, the cost of the mold and the cost of changing the design are reduced, and the amount of force of the spring is also easily changed, and the molding is easy and can be formed into any shape. In addition, the terminals can be easily assembled.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a battery storage device of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

3A is a plan view of a linear spring, and FIG. 3B is a side view.

[Explanation of symbols]

4 ... Battery case, 8 ... Terminal part, 10 ... Insulator, 1
2 ... linear spring, 14 ... upper plate, 16 ... lower plate, 1
8 ... Intermediate plate part, 20 ... Fixed side part, 22 ... Movable side part, 24 ... Bend part, 28 ... Contact part, 32 ... Lock part, 38 ... Battery contact part, 42 ... Wiring board.

Claims (5)

[Claims] 1. A battery storage device having a terminal portion provided on a bottom portion of a battery case, wherein the terminal portion has an insulator attached to a bottom portion of the battery case, and a conductive member attached to the insulator. A linear spring made of the material described above, wherein the linear spring is formed with a contact portion projecting inward of the battery case from the insulator. 2. The insulator has a plate surface facing the bottom of the battery case, and the linear spring has a base end locked to the insulator side and extends a predetermined length below the plate surface. 2. A movable piece which is capable of swinging downward about a base end as a fulcrum, and wherein a contact portion is formed at a tip of the movable piece and protrudes above a plate surface from a cutout of the plate surface. The battery storage device as described in the above. 3. The insulator has a plate surface facing the bottom of the battery case, and the linear spring is fixed at a base end thereof to the insulator side and extends a predetermined length below the plate surface. The battery housing according to claim 1, further comprising: a bent portion provided at a tip of the fixed piece portion, wherein the bent portion is connected to a wiring board disposed below the insulator. apparatus. 4. The linear spring includes a fixed piece and a movable piece that extend a predetermined length in parallel with each other, and a base of the fixed piece and a base of the movable piece are connected by a curved portion. A bent portion that is bent downward is provided at the tip of the fixed piece, and the contact portion is formed to be curved upward at the tip of the movable piece,
The insulator has a plate surface facing the bottom of the battery case, the fixed piece portion and the movable piece portion extend below the plate surface, the curved portion is locked on the insulator side, and the bent portion is Connected to a wiring board disposed below the insulator, the movable piece is disposed so as to be able to swing downward, and the contact portion extends upward from the cutout formed on the plate surface. The battery storage device according to claim 1, which protrudes. 5. A pair of said linear springs are arranged in parallel corresponding to plus and minus electrodes of a battery.
The battery storage device according to claim 1.