JPH0419713Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a battery storage mechanism for a small electronic device that prevents the contents of the memory from being erased when replacing the battery.

[Background of the idea]

For example, in electronic watches, in addition to the time display,
Some electronic watches are known to have a memory section for phone numbers, schedules, etc.; however, when the battery is removed when replacing the battery, the contents of the memory section are erased. I had a flaw that caused things to happen.

For this reason, conventionally, as shown in FIG. 1, the clock circuit 1 and the memory section 2 are operated with separate batteries 3 and 4, respectively, so that even when the battery 3 of the clock circuit is replaced, the circuit of the memory section 2 is not affected. The idea behind this is known.

However, when the battery 4 in the memory section reaches the end of its life, the battery 4 must be replaced, which has the disadvantage that all the contents of the memory section are erased. For this reason, as shown in FIG. 2, it has been considered to connect a plurality of batteries 5 and 6 in parallel to an electronic circuit 7 consisting of a memory section and a clock circuit to extend the battery life. Normally, when a battery reaches the end of its lifespan and is replaced, it is common to remove batteries 5 and 6 at the same time and insert a new battery, but in this case as well, the contents of the memory section of the electronic circuit 7 will be erased. .

[Purpose of invention]

Therefore, it is an object of the present invention to provide a battery storage mechanism for a small electronic device that does not affect the circuitry of the memory section in any way even when replacing the battery, that is, prevents the possibility of erasing the contents of the memory section. The purpose is to

[Key points of the idea]

In order to achieve this purpose, in this project, multiple batteries are connected in parallel, a battery support plate is rotatably attached to the main body, and one battery is always connected even when replacing batteries. It has a mechanism that allows the battery to be removed while it is electrically connected to the electronic circuit.

〔Example〕

An embodiment of the present invention will be described below using an electronic wristwatch as an example.

Figures 3 and 4 show a watch body (watch module) 11 placed inside a watch case (not shown), with a cylindrical battery storage recess 1 on the back side.
Punch 2,13. Batteries 14 and 15 are electrically connected to a circuit board 16 in the main body, and these batteries are connected in parallel to an electronic circuit 16a formed of a clock circuit and a memory section on the circuit board 16. Information obtained by this electronic circuit 16a is displayed on a liquid crystal display device 16c via an interconnector 16b.

17 is a fan-shaped support plate whose end part is pivoted coaxially with the central axis of the back surface of the main body 11;
As shown in the figure, both batteries 14 and 15 are supported from the back side, but when moving in one direction, for example, to the right as shown in Figure 5, one of the batteries 14 is unsupported and the The structure is such that the battery can be removed and replaced. That is, the angles formed by both sides of the support plate 17 may be set in a positional relationship that passes approximately through the center of each battery 14, 15 housed in the main body 11.

18, 18 are provided at a constant interval on the back surface of the main body 1, and are provided on either the left or right side of the support plate 17 so that only one battery can be pulled out when the support plate 17 moves leftward or rightward. 19 is a stopper that engages with the surface and prevents its movement;
This is a guide piece that is provided on a part of the outer periphery of the support plate 17 and has grooves 20 that support the arcuate portion of the support plate 17.

Further, 17a is a support member that supports the support plate 17, and is made of metal, and electrically connects the positive potential of the battery to the circuit board 16 via a spring 17b.

Batteries 14 and 15 are housed in the recessed portions 12 and 13 of the watch body 11, and are electrically connected in parallel to an electronic circuit 16a of a circuit board 16 within the body.

As shown in FIG. 3, these batteries 14 and 15 are normally located in a positional relationship that passes approximately through the center of each of the batteries 14 and 15 housed on both sides of the support plate 17, so that the batteries do not slip out.

Now, when the battery is nearing the end of its life or for other reasons, the support plate 17 is fan-shaped in one direction, for example, to the right until it abuts the right stopper 18 as shown in FIG. By doing so, the support plate 17 releases the support for one of the batteries 14, and the battery can be taken out and replaced. At this time, even when replacing batteries, other batteries 15
Since it maintains a parallel connection with the clock circuit and memory section of the electronic circuit 16a, there is no risk of erasing the contents of the memory section.

Next, when it is desired to replace the battery 15 on the right side of the main body 11, the support plate 17 is moved in a fan-like manner to the left until it contacts the stopper 18 on the left side as shown in FIG. Since the support is removed, the battery can be removed and replaced.

[Effect of idea]

As described above, the present invention is a compact electronic device that has an extremely simple configuration and multiple functions, and that even when replacing the battery, the circuit of the memory section is not affected in any way. This can prevent the possibility of erasing the contents of the section.

[Brief explanation of the drawing]

The figure shows the case where this invention is applied to an electronic wristwatch. Figures 1 and 2 are explanatory diagrams of conventional circuits, Figures 3 to 6 are examples of the present invention, and Figure 3 is the surface of the watch body. Figure 4 is a sectional view taken along the line shown in Figure 3,
5 and 6 are rear views of the entire device, respectively, for explaining the operation of the embodiment of the present invention. 11... Watch body, 12, 13... Battery storage recess, 14, 15... Battery, 17... Support plate, 1
8,18...stopper.

Claims (1)

[Scope of utility model registration request] A battery storage main body having a plurality of battery storage openings formed in parallel for storing a plurality of batteries connected in parallel with an electronic circuit, and a battery storage main body rotatably attached to the battery storage main body. A central position that simultaneously supports each of the plurality of batteries arranged in each of the openings for storage, and a position rotated left and right from this central position allows one of the plurality of batteries to be inserted and removed from the opening for battery storage. A battery storage mechanism for a small electronic device, comprising: a battery support plate that is moved to a position where the remaining battery is supported within the battery storage opening;