JPS5937777Y2 - camera battery storage - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a battery storage device for a camera.

Conventionally, cameras have used flexible printed circuits (FPC) as the wiring material to reduce wiring man-hours and make the wiring more compact.

However, despite the introduction of such wiring materials into cameras, battery storage devices still require a contact piece that is insulated from the camera body to make contact with the battery electrode, and a contact piece that connects this contact piece to each circuit. Uses lead wires for power supply to connect.

As a result, there have been disadvantages such as the structure of the battery storage device being complicated, the number of soldering steps being increased, and poor conductivity occurring due to incomplete soldering.

Therefore, the present invention provides a battery storage device that has a simple structure and can reduce the number of soldering points.

To this end, the present invention includes a battery storage chamber provided in the camera body, a lid portion that closes the battery storage chamber and has a contact that is connected to one electrode of a battery stored in the battery storage chamber; A first flexible printed circuit with an exposed conductor is connected to the other electrode of the battery stored in the battery storage chamber, and the first flexible printed circuit is connected to one electrode of the battery via a contact when the lid closes the battery storage chamber. A second flexible printed circuit with exposed conductors is connected thereto, and a battery storage device is provided for extracting battery voltage between the conductors of the first and second flexible printed circuits.

The present invention will be explained below with reference to the drawings.

The figure is a sectional view showing an embodiment of a battery storage device in which batteries are loaded from the bottom of the camera body.

A battery storage chamber 2 is bored in the camera body 1.

The first flexible printed circuit 3 is located at the upper end of the battery compartment 2, with one overlay 3a removed to expose the conductor 3b to the battery compartment 2.

This first FPC 3 connects the conductor 3b to the battery storage chamber 2.
It is biased inward into the battery storage chamber by a leaf spring 4 that is disposed toward the side and comes into contact with the other overlay 3c.

Therefore, the conductor 3b is insulated by the overlays 3a, 3c and acts as a power supply terminal.

The second flexible printed circuit 5 is arranged at the lower end of the battery storage chamber 2, and has an opening along the outer periphery of the storage chamber so as not to interfere with battery storage.

This second FPC 5 has one overlay 5a removed to expose the conductor 5b, and the other overlay 5a exposed.
c is arranged so that it is in contact with the camera body 1 and the conductor 5b faces downward.

Therefore, conductor 5b is insulated by overlays 5a, 5c and acts as a power supply terminal.

The bottom cover 6 is provided with a hole 6a that serves as a pedestal for a cover portion to be described later, and is fixed to the camera body 1 so as to be sandwiched between the bottom cover 6 and the camera body 1 of the second FPC 5.

Here, the conductor 5b of the second FPC 5 is exposed in the hole 6a.

The lid 7 closes the battery storage chamber 2 by screwing, and is itself made of a conductive material.

This lid part 7 has a contact 7c that comes into contact with the electrode of the battery.
It has a hole 6a in the bottom cover 6 and is screwed into the battery storage chamber 2.

A battery holder 8 made of plastic or the like is installed in the inner cylinder 7a of the lid part 7.
is inserted.

For example, two batteries 9 and 10 are loaded in series in this holder.

It comes into contact with the lid 7 of the negative electrode of the battery 9.

Now, as shown in the figure, when the lid part 7 with the batteries 9 and 10 loaded in the holder 8 is screwed into the battery storage chamber 2,
The flange 7b of the lid 7 is connected to the conductor 5b of the second FPC 5.

On the other hand, the positive electrode of the battery 10 is connected to the conductor 3b of the first FPC 3.

Here, the contact pressure between the positive electrode of the battery 10 and the conductor 3b is ensured by the leaf spring 4.

Therefore, the battery voltage can be extracted between the conductors 3b and 5b of the first and second FPCs.

Note that the lid part 7 does not need to be made entirely of conductive material, and when the battery is stored, the negative electrode of the battery 9 and the conductor 5 of the second FPC are
It is sufficient if the connection is made between the terminal and the terminal b.

In addition, the battery can be pre-loaded into the lid 7.
It may be stored in the battery storage chamber 2 and then screwed into the lid.

At this time, the lid can also be hinged.

Furthermore, in this embodiment, when the lid part 7 is closed, the conductor 5b may be worn out due to the rotation and sliding of the flange part 7b, so it may be considered to attach a reinforcing conductor ring to the conductor 5b. .

According to the present invention as described above, since the conductor of the FPC is used as a direct connection terminal, there is no need for special insulating materials or lead wires, and the first and second FPCs can be connected to other circuit elements. Since it can be constructed integrally with the FPC, a battery storage device with an extremely simple structure can be obtained.

[Brief explanation of drawings]

The figure is a sectional view of one embodiment of the present invention. Explanation of symbols of main parts, 1...Camera body,
2...Battery storage chamber, 7c...Contactor,
7... Lid part, 3... First flexible printed circuit, 5... Second flexible printed circuit, 4... Biasing member.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A battery storage chamber provided in the camera body, a lid portion that closes the battery storage chamber and has a contact that is connected to the electrodes of the battery, and a battery stored in the battery storage chamber. a first flexible printed circuit having a conductor exposed within the battery compartment so as to be connected to the other electrode of the battery; 1. A battery storage device for a camera, comprising a second flexible printed circuit with a conductor exposed so as to be connected to an electrode, and a battery voltage is taken out between the conductors of the first and second flexible printed circuits. 2. Utility model registration claim 1, characterized in that the first flexible printed circuit is biased by a biasing member so that its conductor has an appropriate contact pressure with the other electrode of the battery. camera battery storage.