JPH02274128A - Battery case for electronic instrument - Google Patents

Abstract

PURPOSE:To improve the water-proof performance of a battery case when the case is separated from an electronic device main body by making an intermediate electrode connecting a battery contained in the battery case and an electrode of the electronic device main body of a pressing conductive rubber. CONSTITUTION:An intermediate electrode 1 connecting a battery 4 contained in a battery case and an electrode of an electronic device main body 6 is made of a pressing conductive rubber. When the battery case is assembled to a radio equipment main body 6, the intermediate electrode 1 of the battery case is compressed by the electronic device main body such as an electrode 5 of a portable radio equipment main body 6, then the intermediate electrode 1 is energized and the power is supplied from the battery 4 to the radio equipment main body 6. When the battery case is separated from the radio equipment main body 6, since no pressing force is exerted to the intermediate electrode 1, the intermediate electrode 1 is insulated and acts like a packing sealing the inside and the outside of a cover 2 of the battery case. Thus, water-proof performance is considerably improved.

Description

[Detailed Description of the Invention] [1 Already Required] Regarding the battery case of an electronic device, particularly a portable radio, the purpose is to improve the waterproofness of the battery case when separated from the main body of the electronic device, and to attach and detach it to the main body of the electronic device. The present invention relates to a battery case for an electronic device, in which an intermediary electrode that mediates between the battery housed in the battery case and the electrode of the electronic device main body is made of pressurized conductive rubber. , especially regarding battery cases for portable radios.

[Conventional technology]

FIGS. 4 and 5 show conventional battery cases when a portable radio is used as an electronic device. This conventional battery case consists of a frame 13 that houses a battery 14 and a lid 12 that covers one end surface of the frame 13.
A gasket 19 is sandwiched between and M12 for sealing. ! A pair of intermediary electrodes 11 made of leaf springs are fixed to 112, and each intermediary electrode 11 penetrates through the lid 12 and contacts the electrode of the battery 14 on the inside of 112, while the radio connected to the M12 side It is configured to contact the electrode 15 of the machine body 16.

The electrode 15 of the radio main body 16 has a recess 16a formed at a position corresponding to the intermediate electrode 11 on the end face of the radio main body 16.
It protrudes from the center of the M12, and the recess 1
An annular protrusion 12a is formed which is fitted into the middle electrode 6a and surrounds the intermediate electrode 11 and the radio side electrode 15, and when the radio main body 16 and the battery case are assembled, the radio main body 16
The gap between the inner circumferential surface of the recess 16a and the outer circumferential surface of the protrusion 12a of the lid 12 is sealed by the O-ring 17 fitted to the inner circumferential surface of the four parts 16a.

[Problems to be solved by the invention] This conventional battery case has 1. When separated from the frameless machine main body 16 as an electronic device, the intermediate electric bridge 11 is exposed to the outside 7, and when moisture adheres to the intermediate electrode 11, electricity is applied between the electrodes 11, and the attached moisture is transferred to the intermediate electrode. 1
If the leakage current penetrates into the inside of the lid 12 through the leakage current, the leakage current becomes even larger.

This invention was made in view of the above circumstances,
The purpose is to improve the waterproofness of the battery case when separated from the electronic device main body. [Means for Solving the Problem] In order to achieve the above object, the present invention In the battery case that can be attached and detached, an intermediary electrode 1 that mediates between the battery 4 housed in the battery case and the electrode of the electronic device main body 6 is formed of pressurized conductive rubber.

[Effect]

In this invention, pressurized conductive rubber refers to an elastic body such as silicone rubber in which a few metal particles such as nickel are arranged in one direction, and when pressure is applied in that direction, the metal fine particles inside are connected to each other. A material that exhibits electrical conductivity, and when the pressure is removed, the elastic restoring force of the rubber causes the metal particles to separate from each other and become insulated. Although the material of the elastic body is not particularly limited, it is recommended to use silicone rubber, which has excellent voltage resistance and weather resistance, as well as flame retardancy and toughness.

In this invention, when the battery case is assembled to the radio main body 6, the intermediate electrode 1 of the battery case is pressed by the electrode 5 of the electronic device main body, for example, the portable radio main body 6, and the intermediate electrode 1 becomes conductive. Power can be supplied from the battery 4 to the main body 6 of the radio device. Further, when the battery case is separated from the radio main body 6, no pressure is applied to the intermediate electrode 1, so the intermediate electrode 1 becomes insulated and acts as a gasket that seals the inside and outside of M2 of the battery case.

[Embodiment] FIGS. 1 and 2 show an embodiment of the present invention in a case where the electronic device is a portable wireless device.

The battery case includes a frame 3 that houses a battery 4, a lid 2 that covers one end of the frame, a gasket 9, and a pair of intermediate electrodes 1.
・It is equipped with 1. The gas furnace 52 and 9 are inserted between the frame 3 and the lid 2 to prevent moisture from entering the battery case through the gap between them.

On the bottom surface of the radio body 6 to which this battery case is assembled, there is a
A pair of recesses 6a, 6a are formed, and electrodes 5, 5 protrude downward from the center of each recess 6a, 6a. Correspondingly, protrusions 2a, 2a are formed on the lid 2 of the battery case to be fitted into the recesses 6a, 6a, and these protrusions 2a, 2a are formed.
Electrode insertion holes 2b, 2b for receiving the electrodes 5, 5 of the radio main body 6 are formed inside the hole a. These electrode insertion holes 2b
- The above-mentioned intermediate electrode 1 is fitted inside 2b.

As shown in the figure, each intermediary electrode 1 is formed of pressurized conductive rubber that exhibits conductivity when compressed in the vertical direction, and the terminal of the battery 14 in the battery case is brought into contact with its inner end surface.

In addition, O rings 7, 7 are provided on the inner peripheral surfaces of the four parts 6a, 6a.
The O-rings 7 and 7 prevent moisture from flowing into the connection between the electrodes 5 and 5 and the intermediary electrodes 1 and 1 from the gaps between the protrusions 2a and 2a of the battery case and the recesses 6a and 6a. Infiltration is prevented. In addition, the radio device main body 6
There is a buckle 8 for holding the assembled battery case.
8 is provided, and the frame body 3 is formed with engaging portions 3a, 3a to which the buckles 8, 8 are engaged.

In this battery case, when it is assembled to the radio main body 6, the intermediary electrodes 1, 1 are vertically compressed by the electrodes 5, 5 of the radio main body 6 and become conductive, so that the battery 4 is connected to the radio main body. While it becomes possible to supply power to 6,
When separated from the non-gA machine body 6, the intermediate electrodes 1 and 1
The compressive force is removed, and the intermediate electrodes 1, 1 become insulated, and act as a sealing member to prevent moisture from entering into the battery case from the electrode insertion holes 2b, 2b. Therefore, when the battery case is separated from the radio main body 6, moisture is completely prevented from entering into the battery case due to the sealing action between the intermediate electrode 1 bow and the gasket 9, and even if the battery case is submerged in water, Since both intermediary electric currents if.1 are in an insulated state, there is no risk of them becoming energized, and consumption of the battery 4 can be reliably prevented. As a result, there is no need for a waterproof container or waterproof packaging, which was conventionally required when carrying or storing the wireless device separately from the main body 6, reducing total cost and reducing storage space.

In the above embodiment, for example, as shown in FIG. 3, it is possible to attach the metal electrode 1a to one or both sides of the intermediate electrode 1 by adhesion, fusion, etc. to increase the wear resistance of the electrode end surface. .

Further, although the description has been made only for the case where the electronic device is a portable radio device, the present invention may be applied to other electronic devices 2 =.

〔Effect of the invention〕

As described above, according to the present invention, by forming the intermediary electrode of the battery case with pressurized conductive rubber, the intermediary electrode prevents moisture from entering from the outside when separated from the main body of an electronic device such as a radio. At the same time, it is possible to prevent electrical leakage to the outside, so waterproofness can be significantly improved. Also,
Since it is possible to prevent electrical leakage to the outside when separated from the main body of the electronic device, there is no need for waterproof containers or waterproof packaging during storage, reducing total costs and reducing storage space.

[Brief explanation of drawings]

FIG. 1 shows S;I of a battery case according to an embodiment of the present invention.
1tFi side view, FIG. 2 is a vertical cross-sectional view of the battery case assembled to the main body of the radio, FIG. 3 is a vertical cross-sectional view of a modified example of the intermediate electrode, and FIG. 4 is a vertical cross-sectional view of a conventional battery case. , Fig. 5 is a vertical cross-sectional view of a conventional battery case with 11 (, t) attached to the main body of the radio. (electronic device) Figure 1 Figure 3

Claims (1)

[Scope of Claims] [1] In a battery case that is attached to and removed from an electronic device main body (6), an intermediary between the battery (4) housed in the battery case and the electrode (5) of the electronic device main body (6). A battery case for an electronic device, characterized in that an intermediate electrode (1) is made of pressurized conductive rubber.