JPH0565076U - Metal connector - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a metal connector which prevents water from entering inside through a gap of an insulator inserted in a shell. [Structure] Metal shell 1 formed in a substantially hollow cylindrical shape
1, a metal connector 10 including an insulator 13 made of an insulating material such as epoxy resin and fixed in the shell, and a plurality of pin contacts 14 planted so as to penetrate the insulator. In the above, the metal connector 10 is configured such that the gap between the insulator and the shell is filled with the rubber-based sealing material 17 having water resistance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a metal connector, especially a waterproof metal connector.

[0002]

[Prior Art]

 Conventionally, for example, in a remote control device such as a crane, a hydraulic control unit and a hydraulic valve control unit provided in the crane are connected by a multi-core cable. In order to connect both ends of this multi-core cable to the remote controller operation section and the operation control section, a metal connector is generally adopted.

Such a metal connector is configured, for example, as shown in FIG. That is, in FIG. 2, the metal connector 1 comprises a metal shell 2 formed in a substantially hollow cylindrical shape, and a holding ring 3 inserted into the shell 2 and made of an elastic material such as phosphor bronze. An insulator 4 fixed to the inner surface of the shell 2 and made of an insulating material such as epoxy resin, and a plurality of pin contacts 5 planted so as to penetrate the insulator 4.

Further, on the outer peripheral surface of the shell 2, a flange portion 2a formed integrally with the shell 2 and protruding outward, and a screw provided on the peripheral surface from the flange portion 2a toward one end It has a portion 2b and a nut 7 that is screwed into the screw portion 2b and faces the flange portion 2a with a washer 6 interposed therebetween.

The metal connector 1 configured as described above is configured such that the screw portion 2b of the shell 2 is inserted from the outside into the mounting hole 8a provided in the mounting panel 8 of a device (not shown), and the inside of the mounting panel is inserted. The metal connector 1 is fixed to the mounting panel by mounting the washer 6 and the nut 7 on the protruding screw portion 2b and tightening the nut 7.

At this time, since the gasket 2a ′ is provided on the end surface of the flange portion 2a of the shell 2 as shown in the figure, the shell 2 is liquid-tight with respect to the mounting hole 8a of the mounting panel 8. Can be attached.

A connecting cord is connected by soldering to the tip ends of the pin contacts 5 exposed inside the mounting panel of the metal connector 1.

In this manner, the metal connector 1 fixed to the mounting panel is fitted with a female metal connector 9 having a similar structure corresponding to the front surface of the metal connector 1, and at that time, the shell 2 By contacting the tip 2c with the gasket 9a provided inside the female metal connector 9, the insides of the metal connector 1 and the female metal connector 9 are liquid-tightly sealed to the outside. obtain.

The female metal connector 9 includes an insulator 9c inserted and fixed in a substantially hollow cylindrical shell 9b, and a plurality of socket contacts 9d embedded in the insulator 9c.

[0010]

[Problems to be solved by the device]

 However, in the metal connector 1 configured as described above, the connection portion of the metal connector 1 and the female metal connector 9 and the attachment portion of the metal connector 1 to the attachment panel 8 are liquid-tight to the outside. However, the insulator 4 of the metal connector 1 is not liquid-tightly fixed to the inner surface of the shell 2.

Therefore, for example, when the jacket of the cable C connected to the female metal connector 9 is damaged, water may enter the cable C from the damaged portion of the cable C. The water that has entered the cable C reaches the shell 2 of the metal connector 1 from the inside of the female metal connector 9 along the cable, further passes through the gap between the insulator 4 and the shell 2, and the metal connector 1 In the drawing, there is a problem that it flows into the right side and finally enters the inside of the mounting panel 8 and the parts, circuits, etc. provided inside the mounting panel get wet.

The present invention has been made in view of the above points, and an object thereof is to provide a metal connector in which water does not enter inside through a gap of an insulator inserted in a shell.

[0013]

[Means for Solving the Problems]

 According to the present invention, the above object is to provide a shell made of a metal having a substantially hollow cylindrical shape, an insulator made of an insulating material such as an epoxy resin and fixed in the shell, and a penetrating the insulator. In a metal connector including a plurality of pin contacts implanted as described above, a rubber-based sealing material having water resistance is filled in a gap between the insulator and the shell. , With a metal connector.

[0014]

[Action]

 According to the above configuration, in the inside of the shell, the gap between the insulator and the inner surface of the shell is liquid-tightly sealed by the sealing material filled in the gap. If the cable etc. connected to the metal connector to be combined is damaged, the water that has penetrated through the cable to the outside of the insulator inside the shell of this metal connector will not flow between the shell and the insulator. It is possible to prevent the water from entering the inside of the insulator through the gap, so that water may enter the inside of the mounting panel to which the metal connector is attached or the case of various devices. There is no problem, and a completely waterproof structure will be obtained.

[0015]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. FIG. 1 shows an embodiment of a metal connector according to the present invention.

The metal connector 10 includes a shell 11 made of a metal formed into a substantially hollow cylinder, and a retaining ring 12 inserted into the shell 11 and made of an elastic material such as phosphor bronze. It is composed of an insulator 13 made of an insulating material such as an epoxy resin and fixed to the pin 13, and a plurality of pin contacts 14 implanted so as to penetrate the insulator 13.

Further, on the outer peripheral surface of the shell 11, a flange portion 11a formed integrally with the shell 11 and protruding outward, and a screw portion provided on the peripheral surface toward one end from the flange portion 11a. 11b and a nut 16 screwed into the threaded portion 11b and opposed to the flange portion 11a with a washer 15 sandwiched therebetween.

The above structure is similar to the conventional metal connector 1 shown in FIG. 2, but in the metal connector 10 according to the present invention, a gap between the insulator 13 and the inner surface of the shell 11 is further added. A sealing material 17 having water resistance and insulating properties, such as silicone rubber or RTV rubber (specifically, Shin-Etsu Silicone One-Component RTV rubber manufactured by Shin-Etsu Chemical Co., Ltd.) is filled. As a result, the gap between the insulator 13 and the inner surface of the shell 11 is liquid-tightly sealed.

The metal connector 10 according to the present invention is configured as described above, and when the metal connector 10 is attached to the mounting hole 18a provided in the mounting panel 18 of a device (not shown), the mounting is performed. From the outside of the panel 18, the threaded portion 11b of the shell 11 is inserted, the washer 15 and the nut 16 are attached to the threaded portion 11b protruding inside the mounting panel 18, and the nut 16 is tightened to tighten the metal connector. 10 is fixed to the mounting panel 18.

At this time, the gasket 11a ′ is provided on the end surface of the flange portion 11a of the shell 11 as shown in the drawing, so that the shell 11 is in liquid contact with the mounting hole 18a of the mounting panel 18. Can be mounted tightly.

A connecting cord is connected to the tip of each pin contact 14 exposed inside the mounting panel 18 of the metal connector 10 by soldering.

The metal connector 10 fixed to the mounting panel 18 in this manner has its shell 11 when a female metal connector 19 having a similar structure is mounted from its front surface. The tip 11c of the abutment abuts against the gasket 19a provided inside the female metal connector 19 so that the insides of the metal connector 10 and the female metal connector 19 are liquid-tightly sealed to the outside. Can be done.

Further, since the inside of the shell 12 of the metal connector 10 is liquid-tightly closed by the insulator 13 and the seal member 17, the inside of the mounting panel 18 to which the metal connector 10 is mounted is attached. Again, it is sealed.

Therefore, for example, due to damage to the jacket of the cable C connected to the female metal connector 19, water penetrates into the cable C from the damaged portion of the cable C, and along the cable C. Even if water enters from the female metal connector 19 into the shell 11 of the metal connector 10, since the gap between the shell 11 and the insulator 13 is sealed by the sealing material 17, Water can be reliably prevented from penetrating through the gap to the inside of the insulator 13.

The female metal connector 19 includes an insulator 19d inserted and fixed in a shell 19c having a substantially hollow cylindrical shape, and a plurality of socket contacts 19e embedded in the insulator 19d.

[0026]

[Effect of the device]

 As described above, according to the present invention, it is possible to provide an extremely excellent metal connector in which water does not enter the inside through the gap of the insulator inserted in the shell.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of a metal connector according to the present invention.

FIG. 2 is a schematic sectional view showing an example of a conventional metal connector.

[Explanation of symbols]

 10 Metal Connector 11 Shell 12 Retaining Ring 13 Insulator 14 Pin Contact 15 Washer 16 Nut 17 Sealing Material 18 Mounting Panel 19 Female Metal Connector C Cable

Claims (1)

[Scope of utility model registration request] 1. A metal shell formed in a substantially hollow cylindrical shape, an insulator made of an insulating material such as an epoxy resin inserted into and fixed to the shell, and an insulator that is planted so as to penetrate the insulator. A metal connector including a plurality of pin contacts, characterized in that a gap between the insulator and the shell is filled with a rubber-based sealing material having water resistance.
Metal connector.