Novel wet-type watertight connector

Abstract

The utility model provides a novel wet-type watertight connector comprising a connector body which is composed of a terminal and a rubber shell formed on the terminal through injection molding. The cable is electrically connected with the wiring end of the terminal; the POM sleeve is connected to the joint of the cable and the terminal in a sleeving manner; the flange is connected to the outer side of the rubber shell and the outer side of the POM sleeve in a sleeving manner; and the vulcanization layer is filled between the flange and the rubber shell and covers the outer sides of the flange and the cable. According to the novel wet-type watertight connector provided by the utility model, the flange and the rubber shell are hermetically connected through the vulcanization layer, so that the overall waterproof grade of the connector is improved; compared with the prior art adopting a plastic threaded connection structure to realize connection of the male end and the female end of the connector, the scheme realizes connection of the male end and the female end of the connector through the flange, and has the characteristics of low temperature resistance, oil resistance, tensile strength, mildew resistance, explosion prevention and long service life in an underwater environment.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a novel wet-type watertight connector. Background Art

[0002] In the power supply, signal and network transmission of surface and underwater equipment, and in the construction of underwater projects, watertight connectors, as an indispensable electrical connection device, play a vital role. The quality of watertight connectors largely determines the stability of photoelectric transmission, as well as the installation and maintenance of underwater equipment projects. Traditional wet watertight connectors are mostly assembled with plastic nuts. Special wet watertight connectors assembled with plastic parts have the disadvantages of not being resistant to low temperatures, not being oil-proof, having poor tensile strength, being prone to mold due to water vapor erosion, failing to meet explosion-proof requirements, and having a short service life.

[0003] Therefore, in view of the shortcomings of the prior art, it is necessary to design a new wet watertight connector to solve the above problems. Utility Model Content

[0004] In order to overcome the deficiencies in the above-mentioned prior art, the technical problem to be solved by this patent is to provide a special wet watertight connector, which has the characteristics of easy processing, high waterproof grade, resistance to low temperature, oil, tensile strength, mildew, explosion-proof and long service life in underwater environment.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: a new type of wet watertight connector, comprising:

[0006] A connector body, the connector body being composed of a terminal and a plastic shell injection-molded on the terminal;

[0007] A cable, the cable being electrically connected to a terminal end of the terminal;

[0008] A POM sleeve, the POM sleeve being sleeved at the connection between the cable and the terminal;

[0009] A flange, the flange being sleeved on the outer sides of the plastic shell and the POM sleeve;

[0010] The vulcanized layer is filled between the flange and the plastic shell, and is coated on the outer sides of the flange and the cable.

[0011] The preferred technical solution is: the plastic shell is constructed as a step column structure and includes a large diameter section and a small diameter section arranged in sequence from the plug-in end to the wiring end, the large diameter section and the small diameter section are connected by a transition section, and the transition section includes a conical surface structure transitionally connected to the small diameter section; the flange is provided with a step hole matching the large diameter section and the transition section, and an annular groove structure is formed between the conical surface structure and the step hole and is filled with the vulcanized layer.

[0012] The preferred technical solution is that the terminal is a male terminal or a female terminal.

[0013] The preferred technical solution is: a sealing ring groove or a sealing ring is provided at one end of the flange close to the terminal plug-in end.

[0014] The preferred technical solution is: the flange is provided with through holes for the bolts to pass through.

[0015] Due to the application of the above technical solution, the utility model has the following beneficial effects:

[0016] The utility model provides a novel wet watertight connector, which seals the connection flange and the plastic shell through a vulcanized layer, thereby improving the overall waterproof level of the connector; compared with the prior art that uses a plastic threaded connection structure to connect the male and female ends of the connector, this solution uses a flange to connect the male and female ends of the connector, and has the characteristics of low temperature resistance, oil resistance, tension resistance, mildew resistance, explosion resistance and long service life in underwater environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of a wet watertight connector.

[0018] Figure 2 It is a cross-sectional view of the wet watertight connector involved in the utility model. DETAILED DESCRIPTION

[0019] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0020] See also Figure 1-Figure 2. It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Example:

[0023] like Figure 1 As shown, according to an overall technical concept of the utility model, a new wet watertight connector is provided, including a connector body, the connector body is composed of a terminal 1 and a plastic shell 2 injection molded on the terminal 1; a cable 3, the cable 3 and the terminal 1 are electrically connected; a POM sleeve 4, the POM sleeve 4 is sleeved at the connection between the cable 3 and the terminal 1; a flange 5, the flange 5 is sleeved on the outside of the plastic shell 2 and the POM sleeve 4; a vulcanized layer 6, the vulcanized layer 6 is filled between the flange 5 and the plastic shell 2, and is coated on the outside of the flange 5 and the cable 3.

[0024] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the utility model, the plastic shell 2 is constituted as a step column structure and includes a large diameter section 21 and a small diameter section 23 arranged in sequence from the plug-in end to the wiring end, the large diameter section 21 and the small diameter section 23 are connected by a transition section 22, and the transition section 22 includes a conical surface structure 221 transitionally connected to the small diameter section 23; the flange 5 is provided with a step hole 51 matching the large diameter section 21 and the transition section 22, and an annular groove structure is formed between the conical surface structure 221 and the step hole 51 and is filled with a vulcanized layer 6.

[0025] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the present invention, the terminal 1 is a male terminal or a female terminal.

[0026] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the present utility model, a sealing ring groove or a sealing ring 7 is provided at one end of the flange 5 close to the plug-in end of the terminal 1 .

[0027] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the present invention, the flange 5 is provided with a through hole 52 for the bolts to pass through.

[0028] Therefore, the utility model has the following advantages:

[0029] The utility model provides a novel wet watertight connector, which seals the connection flange and the plastic shell through a vulcanized layer, thereby improving the overall waterproof level of the connector; compared with the prior art that uses a plastic threaded connection structure to connect the male and female ends of the connector, this solution uses a flange to connect the male and female ends of the connector, and has the characteristics of low temperature resistance, oil resistance, tension resistance, mildew resistance, explosion resistance and long service life in underwater environments.

[0030] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A new type of wet watertight connector, characterized in that: include: A connector body, the connector body being composed of a terminal and a plastic shell injection-molded on the terminal; A cable, the cable being electrically connected to a terminal end of the terminal; A POM sleeve, the POM sleeve being sleeved at the connection between the cable and the terminal; A flange, the flange being sleeved on the outer sides of the plastic shell and the POM sleeve; The vulcanized layer is filled between the flange and the plastic shell, and is coated on the outer sides of the flange and the cable.

2. A novel wet type watertight connector according to claim 1, characterized in that: The plastic shell is constituted as a step column structure and includes a large diameter section and a small diameter section arranged in sequence from the plug-in end to the wiring end, the large diameter section and the small diameter section are connected by a transition section, and the transition section includes a conical surface structure transitionally connected to the small diameter section; the flange is provided with a step hole matching the large diameter section and the transition section, and an annular groove structure is formed between the conical surface structure and the step hole and is filled with the vulcanized layer.

3. A novel wet-type watertight connector according to claim 1, characterized in that: The terminal is a male terminal or a female terminal.

4. A novel wet type watertight connector according to claim 1, characterized in that: A sealing ring groove or a sealing ring is provided at one end of the flange close to the terminal plug-in end.

5. A novel wet type watertight connector according to claim 1, characterized in that: The flange is provided with through holes for bolts to pass through.

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