JPH073756Y2 - Connection structure of watertight container for wave receiver - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to an electrical connection structure of a watertight container for a wave receiver used underwater, in particular, an electronic component mounted inside filled with an insulating solution such as oil. The present invention relates to a connection structure of a watertight container for a wave receiver that houses a substrate.

(Prior Art) FIG. 4 is a sectional view of a conventional connection structure, and FIG. 5 is a side view of the same.

In the figure, 1 is a cylindrical case of a watertight container for a wave receiver, and 12 is a mounting board for electronic components, which is held in the cylindrical case 1 by a spring 13.

Reference numeral 14 denotes an end plate having an outer periphery with a flange 14a for closing the end portion of the cylindrical case 1 in a watertight state, and 15 denotes an electric signal from the electronic component mounting board 12 housed inside via the end plate 14 to the outside. Pin-shaped water pressure resistant connection terminal, 16
It is a lead wire.

The end plate 14 has a flange 14a portion adhered thereto with an adhesive 17 or the like so as to seal the inside of the cylindrical case 1 and withstand a long time water pressure, and the connection terminal 15 portion also similarly has a long duration. It is watertightly sealed to withstand water pressure.

(Problems to be solved by the present invention) As described above, the watertight container for a wave receiver used in water is used in an environment where water pressure is applied, and a glass connection terminal is usually used for its connection terminal. However, this requires a large space, and if the number of terminals is large, the end plate must be made large, which inevitably results in an increase in size.

Further, when soldering, the glass connection terminal may be cracked due to the heat thereof and the watertight structure may be broken.

Further, since the number of terminals for electrical connection between the terminals on the mounting board and the connection terminals and between the connection terminals and the external signal lines increases, there is a problem that the number of connection steps increases and the reliability decreases.

An object of the present invention is to eliminate the above-mentioned problems and to provide a compact and low-cost connection structure for a watertight container for a receiver.

(Means for Solving the Problems) Next, means for solving the above problems will be described with reference to FIGS. 1 to 3 corresponding to the embodiment.

That is, according to the present invention, in the electrical connection structure of the watertight container for the wave receiver, the end portion 2a of the mounting substrate 2 is elongated and the circuit pattern 9 as a connection terminal for an external signal is continuously formed to the tip thereof. Then, the end plate 3 of the watertight container is formed with a slit 6 having a taper 7 toward the outside, and a rubber plate 8 is attached to the inside surface.

The end 2a of the mounting board 2 is passed through the slit 6, and the slit 6 is filled with a resin material 12 to ensure watertightness and the mounting board 2
Is easily held and the signal is taken out.

(Operation) In such a configuration, first, the cylindrical case 1 of the watertight container
The mounting substrate 2 is housed therein, and the end 2a of the mounting substrate 2 is passed through the slit 6 of the end plate 3.

Next, the end of the cylindrical case 1 and the flange 3a of the end plate 3 are glued together.
A resin material 12 on the liquid, which is fixed to the mounting substrate 2 and the end plate 3 and has good adhesiveness, is provided with a taper 7 around the recess 5 and the slit 6.
Fill inside and solidify. In this way, it becomes a watertight structure as a whole.

Although the present invention exemplifies a single substrate, a plurality of substrates can also have the present connection structure.

(Embodiment) FIG. 1 is a partial sectional view of a connection structure according to an embodiment of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a plan view of the same mounting substrate.

Here, 1 is a cylindrical case of a watertight container for a wave receiver, 2 is
Electronic component mounting boards housed in the cylindrical case 1, 3
Is a disk-shaped end plate that covers both sides of the cylindrical case 1, and a flange that abuts the end of the cylindrical case 1 on the outer peripheral portion thereof.
3a, and a recess 5 is formed on the outer surface of the end plate 3 on the center side.

A slit 6 is provided substantially in the center of the recess 5, and a taper 7 is formed on the outer periphery of the slit 6 toward the outside.

Inside the end plate 3, a rubber plate 8 having a rubber hardness of, for example, 50 degrees and having a slit smaller than the slit 6 is attached.

As shown in FIG. 3, the mounting board 2 has both ends 2a.
Is elongated, and a circuit pattern 9 for an external signal is formed up to the land 10 at the tip.

(Effect of the Invention) As described in detail above, according to the present invention, the terminals for external signals are formed on the mounting substrate and are exposed to the outside of the watertight container. To improve
It can be expected that the watertight container will be shortened.

Further, since the mounting board is also fixed, the number of parts can be reduced and the assembling can be facilitated.

Further, since the slit portion penetrating the end portion of the mounting board is tapered outward, even if an external pressure is applied, the filled and solidified resin material tightens the mounting board, so that watertightness can be maintained.

By sticking a rubber plate to the bottom of the flange, the resin material will not leak inside when the resin material is filled.

[Brief description of drawings]

FIG. 1 is a partial sectional view of a connection structure according to an embodiment of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a plan view of the same mounting board.
FIG. 4 is a partial sectional view of a conventional connecting structure, and FIG. 5 is a side view of the same.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Hiroaki Mori 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd. (56) References

Claims (1)

[Scope of utility model registration request] 1. An end integrally provided on a part of an outer wall portion of a watertight container for a wave receiver, with a slit having an outward taper, and being integrated with a part of an electronic component mounting substrate inside the watertight container through the slit. The circuit board is filled with a resin material and fixed by water so as to be watertight and hold the mounting board, and a circuit pattern that is continuous inward and outward of the watertight container is formed at the end of the mounting board. A connection structure of a watertight container for a wave receiver, which is configured to extract signals inside and outside the watertight container by a pattern.