JPH044374Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to the structure of a connecting terminal that can stabilize the electrical connection to a protruding electrode of a battery or the like.

(Prior art) In various devices that use batteries such as dry batteries as a power source, connection terminals with a spring structure made of conductive metal and thin plates are pressed against the positive and negative electrodes of the battery. Obtaining electrical connection.

Conventionally, connection terminals shown in FIGS. 2a and 2b have been used as connection terminals connected to the positive side electrode of each electrode of a battery. Each of these terminals 1 and 2 has a planar surface 1a and 2a that contacts the positive electrode 4 of the battery 3, and the electrode 4
It is designed to make one-point contact with a single protrusion 5.

By the way, there are surface contact, line contact, point contact, etc. in the contact mode between the electrode and the connection terminal, but when observed microscopically, most of the surface contact and line contact belong to multi-point contact. Since the pressure force due to the spring structure is distributed to each point, the pressure force at each point decreases, resulting in poor contact conditions. On the other hand, single-point contact is advantageous compared to multi-point contact because the pressure contact force at one point can be made stronger.

However, the single protrusion 5 formed on the battery
If the structure is such that the flat surfaces 1a and 2a are connected to each other, the protrusion 5 of the battery will be worn out or crushed, resulting in a line contact. In addition, there is a risk that the line contact may easily become defective due to changes in conditions such as misalignment of the battery or reduction in spring pressure of the connection terminal. By the way, Japanese Utility Model Application No. 62-160147 discloses a spring section in which a part of the ground plate is cut out and bent in order to connect the terminal part of a tuner pack incorporated in a television, radio, etc. to the ground plate inside the device. However, what is disclosed in this publication relates to a connection structure between a tuner pack and a ground plate as a unit that is incorporated into equipment such as a television set during the manufacturing stage, and moreover, the tuner pack is Once incorporated into a device during the manufacturing stage, it is rarely possible to remove it, and in most cases it is fixed so that it cannot be moved. Further, the spring portion is composed of a single tongue-like piece, and has a structure in which this single tongue-like piece is brought into elastic contact with one terminal surface extending from the tuner pack, so that it can be connected to a movable part such as a battery. If it is used for connection, it may cause a decrease in spring pressure, misalignment of the parts,
There is no compensating means to maintain a good connection in the event of terminal wear or the like.

(Purpose of the invention) The present invention was made in view of the above, and is intended to maintain a good connection between a protruding electrode of a dry battery, etc. and a connecting terminal connected to it, even when the connection condition deteriorates. The present invention provides a structure of a connecting terminal that can be used.

(Summary of the invention) A connecting terminal for establishing electrical continuity by elastically pressing against a protruding electrode, the connecting terminal having two or more notches formed at appropriate locations in a conductive thin plate, and having two or more notches formed between the notches. The contact piece is characterized by comprising a pair of contact pieces formed by protruding areas defined by.

(Example) Hereinafter, the structure of the connection terminal of the present invention will be explained in detail.

FIGS. 1A, 1B and 1C are a plan view, an AA sectional view, and a BB sectional view showing the structure of an embodiment of the present invention.

This connection terminal is composed of a base 10 made of a thin plate of conductive metal, and two pairs of parallel notches 11 are formed in the base 10 at a predetermined interval. The contact piece 12 is formed by bending each region 12 defined by each pair of cuts 11 to one side. The base 10 is fixed to an electrode in a battery box in which a battery to be connected is housed.

Note that the shape of the notch 11 does not have to be linear, and various shapes such as a curved shape, a circular arc shape, a curved shape, etc. can be applied, and the shape of the region 1
2, that is, the shape of the contact piece 12 may also vary. Further, it is preferable that the contact pieces 12 are configured as a pair.

The base portion 10 and the contact piece 12 can be integrally molded by punching or the like.

Each contact piece 12 can independently change its posture (protrusion amount) in various ways through its own elastic deformation action, so when the battery is installed in a proper posture, the electrode surface ( While each contact piece 12 is brought into pressure contact (surface contact) with equal pressure to a position that avoids the protrusion of the positive electrode, the relative positional relationship between the two may vary due to misalignment of the battery, etc. In some cases, they can individually elastically deform to follow the electrode surface and maintain a sufficient connection.
Further, since the positive electrode 4 is connected to the surface electrode avoiding the protrusion 5, it is possible to always ensure contact at two or more locations regardless of the presence or absence of the protrusion 5.

The point is that the contact piece can freely change its posture with respect to the electrode surface due to the elastic deformation of the contact piece itself, so that at least one of the contact pieces can always maintain reliable contact with the electrode surface. The gist of the present invention lies in the configuration.

(Effects of the invention) As described above, according to the structure of the connection terminal of the invention, the connection state between the protruding electrode of a dry battery, etc. and the connection terminal connected thereto is always good even when the connection condition deteriorates. can be held.

[Brief explanation of the drawing]

Figures 1a, b and c are a plan view, an AA sectional view and a BB sectional view showing the configuration of an embodiment of the present invention;
FIGS. 2a and 2b are explanatory diagrams of connection states using conventional connection terminals. 10...Base, 11...Notch, 12...Contact piece.

Claims (1)

[Scope of utility model registration request] A connecting terminal for establishing electrical continuity by elastically pressing against a protruding electrode, the connecting terminal having two or more notches formed at appropriate locations on a conductive thin plate and defined between the notches. A structure of a connecting terminal characterized by comprising a pair of contact pieces formed by protruding regions.