Underwater separation electrical connector assembly and its plug

Abstract

The invention relates to the field of electric connectors, in particular to an underwater separation electric connector and a plug thereof. The plug comprises a plug casing, wherein a mandrel casing pipe, a mandrel, a sliding sleeve, a steel ball, a pushing and pressing spring and a locking spring are arranged in the plug casing; a rotating part is also arranged on the plug casing; the mandrel casing pipe is arranged in the plug casing in a laterally slidable manner; the rotating part and the mandrel casing pipe form a lead screw nut mechanism for driving an adapted locking ring to reciprocate; a sealing section is arranged on one of the mandrel and the mandrel casing pipe; a sealing matched structure is arranged on the other one of the mandrel and the mandrel casing pipe; the sealing section and the sealing matched structure are mutually matched to block off the front part and the rear part of an inner hole in the mandrel casing pipe; and when the mandrel casing pipe and the adopted locking ring are unlocked and continuously pull the mandrel backwards, the sealing section and the sealing matched structure are staggered at the front part and the rear part and two ends of the inner hole in the mandrel casing pipe are communicated. According to the underwater separation electric connector assembly, the pressure relief separation is realized and the prevention of short circuit in the process that a socket is separated from the plug and after the socket is separated from the plug can be also realized.

Description

technical field [0001] The invention relates to the field of electric connectors, in particular to an underwater separation electric connector assembly and a plug thereof. Background technique [0002] The electrical connector assembly with the mandrel locking mechanism has been widely used due to its characteristics of easy operation, reliable locking and remote unlocking. For example, the electrical connectors or electrical connector assemblies disclosed in Chinese patents with application numbers of 2006201337066, 2009101025876, 2010102038113, 2011203736752, 2011203734371 and 2011205725131 all use the mandrel locking mechanism. [0003] The mandrel locking mechanism mainly includes a mandrel, a mandrel sleeve, a sliding sleeve, a locking spring, a pushing spring, a steel ball and a locking ring. Wherein mandrel, mandrel sleeve pipe, sliding sleeve, locking spring, pushing spring and steel ball mostly are assembled on the plug, and locking ring is assembled on the socket....

AI Technical Summary

Problems solved by technology

When using this method, since the plug and the socket are sealed to each other, in deep water, when the two are separated, it is necessary to overcome the water pressure first, and the water pressure is generally relatively large, for example, at a depth of 100m When separating the electrical connector assembly with a sealed diameter of Φ50, the water pressure to be overcome can reach 2000N, which makes it extremely inconvenient to unlock and separate the plug and socket

In addition, since the socket needs to be soaked in water after being separated from the plug, the reliability of the logic circuit anti-short circuit method cannot be guaranteed when there are many signal lines in the electrical connector assembly.

Another underwater separation method of electrical connector components is pressure relief separation, which is to first break the seal between the plug and socket before separating them, so that the water pressure in the plug and socket is kept the same as the external water pressure , and then separate the two. This separation method does not need to overcome the water pressure, and the operation is much more convenient, but it still does not solve the short-circuit prevention problem of the plug and the socket at the moment of separation and after separation.

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