JPH0116282Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a battery contact piece that comes into contact with the positive electrode side of a dry battery.

[Prior Art] Conventionally, the shape of the battery contact piece that comes into contact with the positive electrode of a dry battery corresponds to the shape of the positive electrode of this battery, and the tip surface of this positive electrode is in contact with this contact piece. It was composed of

[Problem to be solved] However, since there is only one contact surface between the positive electrode of the dry battery and the battery contact piece, dirt may adhere to this positive electrode surface or the contact piece, or dust may become trapped between the two. Alternatively, the batteries tend to become misaligned, often resulting in poor contact.

Therefore, an object of the present invention is to provide a battery contact piece that can prevent poor contact between the positive electrode of a dry battery and the contact piece.

[Means for Solving the Problems] The present invention is characterized by the lead portion 1b and the electrode portion 11a.
and an arm portion 6 formed on this electrode portion, and this arm portion is bent from the electrode portion so that it can come into elastic contact with the side of the positive electrode 3 of the dry battery. It's right there.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIG. 1, a battery contact piece 1 disposed in a battery housing (not shown) is made of an elastic conductive material, and includes an electrode part 1a and a lead part 1b. are integrally formed. The positive electrode 3 of the dry battery 2 is placed in the center of the electrode portion 1a.
A contact portion 4 is formed at a position corresponding to , and this contact portion comes into elastic contact with this positive electrode.

By the way, a narrow groove 5 is formed in the right side end of the electrode part 1a from the upper end to the lower end along this side, and as shown in the second figure, the outer piece of this narrow groove is The arm portion 6 is formed by bending the electrode portion 1a at right angles to the surface direction. Arm part 6
has a width approximately equal to the length of the positive electrode 3,
A bent part 6a bent in a dogleg shape along the side of this positive electrode is formed at its upper end, and this bent part comes into elastic contact with the side of this positive electrode to enable electrical conduction. .

The bending portion 6a increases the pressure contact area with the positive electrode 3, and serves as a guide when inserting the dry battery 2 into the battery storage portion, thereby facilitating the insertion.

Therefore, when the dry battery 2 is inserted into the battery compartment, the tip surface of the positive electrode 3 comes into contact with the contact part 4,
Further, an arm portion 6 is in elastic contact with the side surface of this positive electrode, and conduction is established at two locations.

Next, another embodiment of the present invention will be described.

As shown in FIG. 3, the electrode portion 11a of the contact piece 11
A second arm portion 12 is formed on the lead portion 11b side in a positional relationship opposite to the arm portion 6 of the embodiment described above.

This second arm portion 12 is connected to the electrode portion 11 of the contact piece 11.
L-shaped notches 13a, 13 are formed between the lead portion 11b and the lead portion 11b to form a piece having a width corresponding to the length of the positive electrode 3 and a length approximately equal to the diameter.
b, and this piece is bent at right angles to the surface direction of the contact piece 11. Furthermore, the upper end of this piece on the electrode part 11a side is bent in a dogleg shape toward the positive electrode 3 to form a bent part 12a, and a second arm that can come into contact with the left side surface of the positive electrode 3 is formed. Part 12
is formed facing the arm portion 6.

Therefore, the tip end surface of the positive electrode 3 of the dry cell battery 2 inserted into the battery compartment comes into contact with the contact portion 4, and the side surface of this positive electrode is such that both arms 6 and 12 can be electrically conductive and elastic. Since the batteries 2 are pressed and clamped together, and there is a three-point contact, it is possible to completely prevent the dry battery 2 from shifting.

[Effects] According to the present invention, since there are multiple contact points between the positive electrode of the dry cell and the contact piece, even if one point has a poor contact, continuity can be maintained at other points, and the dry cell There will be no contact failure, and continuity is ensured. Furthermore, since the arm is in elastic pressure contact with the positive electrode, the dry battery does not shift and can be held in position reliably. Of course, since the contact piece can be molded from a single conductive metal plate, it is easy to manufacture and the manufacturing cost is low.

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a right side view of FIG. 1, and FIG. 3 is a plan view showing another embodiment. 1, 11... contact piece, 1a, 11a... electrode part,
1b, 11b...Lead part, 2...Dry battery, 3...
...Positive electrode, 4...Contact part, 6, 12...Arm part.

Claims (1)

[Scope of claims for utility model registration] (1) Lead parts 1b, 11b and electrode parts 1a, 11a
and arm portions 6 and 12 formed on this electrode portion, and a contact portion 4 is formed in the center of the electrode portion, and the contact portion is connected to the positive electrode 3 of the dry battery 2. A contact piece for a battery, wherein the arm part is bent from the electrode part and is formed in a position where it can come into elastic contact with a side surface of the positive electrode. (2) The battery contact piece according to claim 1 of the utility model registration claim, characterized in that two arms are provided facing each other.