JPH0126148B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to improvements in underwater cable connectors used, for example, in underwater motors.

[Prior art]

As a conventional device of this kind, there was one shown in Japanese Utility Model Publication No. 11608/1983 as shown in FIG. In the figure, 1 is the frame of the underwater motor, 2 is an internal terminal arranged in this frame 1, 3 is a connection terminal connected to this internal terminal 2, and 4 is a frame 1
A protrusion 5 that is inserted into the interior and surrounds the connection terminal 3 is continuous with the protrusion 4 and has a flange 6 that is in close contact with the frame 1.
7 is the cable connected to the connection terminal 3, and 7 is the flange 5.
A cable lead-out portion that surrounds the cable 6 continuously,
It is bent at a substantially right angle at a distance from the flange portion 5.
Note that the protruding portion 4, the collar portion 5, and the cable lead-out portion 7 are integrally molded with an insulating material, and together with the cable 6 constitute a cable connector 8.

In the structure configured as described above, when the cable connector 8 is attached to the frame 1, the flange portion 5 comes into close contact with the end face of the frame 1, thereby sealing the inside and outside of the frame 1.

However, since the cable 6 extends upward from the center of the flange 5 and is bent at a substantially right angle at a position away from the flange 5, the bent portion of the cable 6 protrudes largely from the frame 1. Therefore, if the cable 6 is attached in the axial direction of the frame 1, the axial dimension of the frame becomes large, and if it is attached in the radial direction, the radial dimension of the frame becomes large, and the cable connector 8 is attached. Not only does this have the disadvantage of increasing the size of the device including the cable connector 8, but when attaching the cable connector 8 to the frame 1, the flange 5 that protrudes slightly in the radial direction must be fixed with a bolt (not shown), for example. It has to be tightened, and the pressing force applied to the flange 5 of the cable connector 8 tends to be uneven, which also has the disadvantage that watertightness tends to deteriorate.

[Summary of the invention]

This invention has been made to eliminate such drawbacks, and includes a shaft-shaped insulating part that has a built-in connecting terminal and is molded with an insulating material, and a shaft-shaped insulating part that is continuous with the connecting part and has a diameter larger than that of the connecting part. , a mounting part molded with an insulating material; a cable lead-out part molded with an insulating material that is continuous with the mounting part and leads out the cable in a direction perpendicular to the axial direction of the connection part in proximity to the connection part; By providing a metal ring that covers the outer periphery of the mounting part and is molded integrally with the mounting part, and a metal lid that is molded as a pair on the side of the mounting part opposite to the connection part, The purpose of the present invention is to provide an underwater cable connector that can be significantly reduced in height and maintain reliable watertightness when attached to equipment.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 2 to 6.
This will be explained with a diagram. In the figure, reference numeral 9 denotes a fitting part made of an insulating material that is fitted into a device (not shown, the same applies hereinafter), and a small diameter part 9b having a plurality of protrusions 9a on the outer periphery.
The small diameter portion 9b is coaxially continuous with the small diameter portion 9b.
It has a large diameter portion 9c configured to have a larger diameter than b,
It forms the connection part. 10 is a connection terminal integrally molded within the fitting part 9; 11 is continuous with the fitting part 9 and has a larger diameter than the large diameter part 9c, through which a bolt or the like for attaching to a device is inserted. The mounting portion has a plurality of through holes 11a, and the end surface opposite to the fitting portion 9 is configured to be flat. 12 is connection terminal 1
0 is connected to the fitting part 9 and led out in a direction orthogonal to the axis of the fitting part 9; 13 is a cable lead-out part that surrounds the cable 12 and is continuous with the mounting part 11; 14 is a cable lead-out part of the mounting part 11; A notch 14a is formed at the upper end of the ring, and the cable 12 is led out through the notch 14a. 1
Reference numeral 5 denotes a metal lid that covers the end surface of the attachment part, and a through hole 15a is formed opposite to the through hole 11a.
It is integrally molded with the mounting portion 11.
In addition, the fitting part 9, the mounting part 11, the cable lead-out part 1
3, the cable 12, the ring 14, and the lid 15 constitute a cable connector 16, and the fitting part 9, the mounting part 11, and the cable lead-out part 13 are integrally made of an elastic insulating material.

In the device configured as described above, when mounting it on a device, the small diameter portion 9b and the large diameter portion 9c are first fitted into the device, and then the through hole 1 of the mounting portion 11 is fitted.
By passing a bolt (not shown) through 1a and screwing this bolt into the device, the head of the bolt presses the lid 15, and the entire lid 15 closes the attachment part 11.
is compressed. Here, since the outer periphery of the mounting part 11 is surrounded by the ring 14, expansion in the radial direction is suppressed, the mounting part 11 is firmly attached to the surface of the device, and the cable connector 16 is connected to the device. Provides sufficient watertightness.

Further, since the entire lid 15 presses the end face of the mounting portion 11, the mounting portion 11 is uniformly compressed, and the close contact with the equipment is also uniform.

In addition, since the cable 12 is located close to the fitting part 9 and is orthogonal to the axis of the fitting part 9,
The height dimension of the cable 12 is derived at a position lower than the height of the attachment part 11, and the height dimension of the cable connector 16 is significantly reduced.

Next, another embodiment will be explained with reference to FIGS. 7 to 9. In the figure, reference numeral 17 is a ground wire provided within the cable 12, and reference numeral 15b is a ground terminal formed by cutting a portion of the lid 15, which is connected to the ground wire 17.

In this configuration, the ground wire 17 connects to the lid 15.
Since it is connected to the ground terminal 15b of the cable, the lid 15 can be used as a ground terminal, and for example, there is no need to expose the ground wire 17 from the cable 12 and connect it to a special ground terminal. It is.

Next, still another embodiment will be described with reference to FIGS. 10 and 11. In the figure, reference numeral 15c is an opening that passes through approximately the center of the lid 15, and constitutes an inlet for insulating material when molding the cable connector 16 with an insulating material.

In this configuration, the opening 15c of the lid 15
Since this is used as the injection port, the remainder of the insulating material after molding remains in the opening 15c.
Therefore, when removing the remaining part, since it is surrounded by the metal lid 15, the removal work can be carried out without damaging the attachment part 11 or the cable lead-out part 13, especially for underwater connectors. It is effective in applications where the connector itself is required to be watertight.

〔Effect of the invention〕

As described above, the present invention includes a shaft-shaped connection part that has a built-in connection terminal and is molded with an insulating material, and a shaft-shaped connection part that is continuous with the connection part and has a diameter larger than that of the connection part, and is molded with an insulating material. a mounting part, a cable lead-out part molded with an insulating material that is continuous with the mounting part and leads out the cable in a direction perpendicular to the axial direction of the connection part in close proximity to the connection part; It has a metal ring integrally molded with the attachment part, and a metal lid integrally molded on the opposite side of the attachment part from the connection part, so the height dimension can be significantly reduced. Instead, the attachment part can be compressed into the device through the lid, which has the effect of significantly improving the watertightness of the device.

Further, if a ground terminal is provided on the lid and the ground wire of the cable is connected, a special ground terminal is not required and the structure is simplified.

Furthermore, by providing an opening in the lid and using this opening as an inlet for insulating material, it is possible to prevent damage to the attachment part and cable lead-out part when removing the remaining part of the insulating material, thereby improving quality. There is an effect that can be done.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a conventional device, FIG. 2 is a sectional view showing an embodiment of the present invention, FIG. 3 is a bottom view thereof, FIG. 4 is a plan view showing the ring in FIG. 2, and FIG.
6 is a plan view showing the lid shown in FIG. 2, FIG. 7 is a sectional view showing another embodiment of the invention, and FIG. 8 is a front view showing the lid shown in FIG. 7. FIG. 9 is a sectional view taken along the line A--A, FIG. 10 is a sectional view showing still another embodiment of the invention, and FIG. 11 is a plan view showing the lid of FIG. 10. In the figure, 9 is a fitting part, 10 is a connection terminal, 11 is a mounting part, 13 is a cable lead-out part, 14 is a ring, 15 is a lid, 1
5b is a ground terminal, 15c is an opening, and 17 is a ground wire. Note that the same reference numerals in each figure indicate the same or equivalent parts.

Claims (1)

[Claims] 1 A shaft-shaped connection part that has a built-in connection terminal and is molded with an insulating material, a mounting part that is connected to this connection part and is formed in the shape of a flange with a diameter larger than the diameter of this connection part and is molded with an insulating material; A cable lead-out part molded with an insulating material that is continuous with the mounting part and leads out the cable in a direction perpendicular to the axial direction of the connection part in close proximity to the connection part, which covers the outer periphery of the mounting part and is integrated with the mounting part. and a metal lid integrally provided on a side of the mounting part opposite to the connection part, the mounting part passing through the mounting part and the lid in the axial direction. Underwater cable connector with a through hole for use.