CN2553528Y - Water-tight electric connector - Google Patents

Abstract

The utility model discloses a watertight electrical connector. It is divided into two parts: plug and socket. One end of the inner housing in the plug has a protruding platform. The elastic retaining ring and lock nut are set outside the inner housing and inside the protruding platform. The jack is set in the inner housing. There is a gap between one end and the end of the inner shell, forming a sunken round hole. The sealing seat A is a columnar structure with a gap for the pin insertion. There is a crescent-shaped groove on the edge of the side wall. The sealing body A seals the wire at the other end of the socket. ;The pins in the socket should be installed on the holes of the supporting block, and in the socket housing, an annular groove is arranged on the inner wall of the front part of the socket housing, and a cylindrical sealing seat B is installed in the cavity, and its side wall and the socket housing The groove is matched, and there is a crescent-shaped boss on the edge of the side wall. The pin is installed in the middle of the bottom and is in close contact with the support block. The root of the pin is provided with a cone; The outer walls are all provided with threads. The utility model has good watertight effect.

Description

A watertight electrical connector

technical field

The utility model relates to a power supply and signal electrical connector, in particular to a watertight electrical connector.

Background technique

At present, most of the existing watertight electrical connectors in China are sealed with an end face 'O' ring, which has a single form, so that the watertightness cannot be fully guaranteed; most of the connection structures are flange connections, and the form is single, which makes the applicability very limited. big limit. In addition, there are defects in varying degrees in terms of convenience of use, reliability of connection, and corrosion resistance in deep seawater environments; the products have not been standardized and serialized.

Utility model content

In order to overcome the above disadvantages, the purpose of this utility model is to provide a watertight electrical connector with good sealing effect for power supply and signal use.

The technical scheme of the utility model is: divided into two parts, a plug and a socket, wherein: the plug is composed of a lock nut, a socket, an inner shell, an elastic retaining ring, a sealing seat A for internal and external sealing and a sealing body A, and the inner There is a raised platform at one end of the housing, and the elastic retaining ring and the lock nut are set outside the inner housing, and are stuck inside the raised platform. The sinking round hole, the sealing seat A forms a columnar structure with a gap for the pin insertion, and has a crescent-shaped groove on the edge of the side wall for positioning together, and the sealing body A seals the wire at the other end of the socket;

The socket is composed of a sealing body B for sealing, a supporting block, a sealing seat B, a socket housing, pins, a sealing 'O' ring, a washer and a connecting nut. There are at least 3 holes on the supporting block, and the pins are installed correspondingly. On the hole of the support block, the two are put into the socket housing together, and the inner wall of the front part of the socket housing is provided with an annular groove, and the sealing seat B is installed in the cavity of the groove, and the sealing seat B is a simple shape, and its side wall and The groove of the socket shell is matched, and there is a crescent-shaped boss on the edge of the side wall for positioning, which is matched with the crescent-shaped groove of the sealing seat A. The pin is installed in the middle of the bottom of the simple shape, and it is in close contact with the support block. A cone is set around the needle root; the rear part of the socket housing is sealed with a sealing body B, and the outer walls of the front and rear ends of the socket housing are provided with threads;

The connecting nut is installed on the rear end of the socket housing, and a ring groove is formed on the socket housing, and the 'O' ring and the washer are put into the two side walls of the ring groove respectively, and the connecting nut is matched with the thread on the rear end of the socket housing; Installed on the rear end of the socket housing, put the 'O' ring in the mounting groove of the flange 'O' ring on the socket housing; the structural shape of the sealing body A is linear or L-shaped; the number of jacks and pins is 3, 6. 8 pairs, or more than 8 pairs; sealing body A, sealing seat A and sealing seat B are made of neoprene material; sealing body B is made of epoxy resin material; socket shell and inner shell are made of metal material.

The utility model has the following advantages:

1. Good watertight effect. Aiming at the key watertight requirements of the watertight connector, the utility model adopts a multi-point and multiple sealing method, that is, through the compression fit of the rubber cone at the root of the socket pin and the sinking rubber round hole at the end of the plug hole, the Each pair of pin sockets is independently sealed; through the compression fit between the end face of the metal socket housing and the vulcanized rubber sealing seat A plane at the bottom of the plug (the axial compression force is generated by the tightened lock nut), Seal all the pin sockets of the connector as a whole; seal the plug and socket itself by sealing the sealing seat A and sealing seat B, sealing body A and sealing body B of epoxy resin and neoprene material; The connection is sealed by an 'O' ring. The above-mentioned structural design and sealing arrangement ensure the watertightness of the utility model series watertight connectors most fully.

2. Wide adaptability and strong practicability. The working pressure range of the series watertight connectors of the utility model is 0-6.895Mpa, and it can still work safely in the environment where the water depth exceeds 500 meters. Long and short through-wall and flange socket design and straight and right-angle plug design expand its use space and application fields.

3. Excellent electrical characteristics. The connectors of the utility model can withstand a high voltage test of 1500VDC between the wires and the wires and between the wires and the shell, the insulation resistance is less than 100 megohms, and the maximum current leakage is 10 microamps.

4. The structure is novel and compact, the arrangement of pins and sockets and the positioning method are reasonable, and the operation is simple. The design of the female and male circular arc columnar positioning structures on the plug and socket of the utility model makes the installation of the connectors convenient and fast, and there is absolutely no possibility of wrong installation. The lock nut makes the connection more reliable. The two small holes on it can be used not only for the purpose of installing the force tool, but also for the purpose of inspection: check whether the end surface of the socket and the bottom surface of the plug are in correct contact and fit, which fully guarantees the reliability of the connection; the application of the socket support block , so that the arrangement and positioning of the pins are more accurate and reliable; the application of the retaining ring makes the disassembly of the connector easier, and so on. These provide great convenience for the use of connectors.

5. Both the signal cable and the power cable of the utility model can be used.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the plug structure of the utility model.

Fig. 3 is a schematic diagram of the socket structure of the utility model.

Fig. 4 is a left side view of Fig. 3 .

Detailed ways

Describe the utility model in detail below in conjunction with accompanying drawing and embodiment.

Example 1

As shown in Figures 1 and 2, it is divided into two parts: a plug 1 and a socket 2, wherein: the plug 1 is composed of a lock nut 11, a socket 12, an inner shell 13, a retaining ring 14, and a sealing seat A15 for internal and external sealing. and sealing body A16, the inner casing 13 has a raised platform at one end, the circlip 14 and the lock nut 11 are set outside the inner casing 13, and are stuck inside the raised platform, and the jack 12 is set in the inner casing 13 , there is a gap between one end of the jack 12 and the end of the inner casing 13 to form a sunken round hole, and the sealing seat A15 forms a columnar structure for leaving a gap for the pin, and has a crescent-shaped groove on the edge of the side wall ( Female type), the sealing body A16 seals the wire at the other end of the jack 12;

As shown in Figures 3 and 4, the socket 2 is composed of a sealing body B21 for sealing, a support block 22, a sealing seat B23, a socket housing 24, pins 25, a sealing 'O' ring 26, a washer 27 and a connecting nut 28. , the support block 22 is provided with at least 3 holes, and the pins 25 are correspondingly installed on the holes of the support block 22, and the two are put into the socket housing 24 together, and the inner wall of the front part of the socket housing 24 is provided with an annular groove. The sealing seat B23 is installed in the groove cavity, and the sealing seat B23 is cylindrical, and its side wall is matched with the groove of the socket housing 24, and there is a crescent-shaped boss (masculine type) on the edge of the side wall for positioning together, and the sealing seat B23 The A15 crescent-shaped groove is matched, and the pin 25 is installed in the middle of the cylindrical bottom, and is in close contact with the support block 22, which plays the role of fixing and sealing the pin 25, and a cone is set around the root of the pin 25; the socket housing 24 The rear part is encapsulated with a sealing body B21, and the front and rear outer walls of the socket housing 24 are all provided with threads;

The sealing body A16, the sealing seat A15 and the sealing seat B23 are made of neoprene material; the sealing body B21 is made of epoxy resin material; the socket shell 24 and the inner shell 13 are made of stainless steel metal material;

In this embodiment, the socket shell 24 passes through the wall, and then the connecting nut 28 is installed on the rear end of the socket shell 24 to form a ring groove on the socket shell 24, and an 'O' ring 26 is placed in the socket shell in the ring groove 24, the 'O' ring installation groove, the washer 27 is placed on the side of the connecting nut 28, and the connecting nut 28 is matched with the thread at the rear end of the socket housing 24; according to the difference in the installation wall thickness, the distance between the formed ring grooves is also different, therefore, The utility model can be divided into two forms of long and short through the wall; in order to avoid obstacles, the structural shape of the sealing body A16 is L-shaped; the number of jacks 12 and pins 25 is 6 pairs.

There are four ways to realize the sealing of the utility model:

1) When the plug 1 is connected to the socket 2, the pin 25 is aligned with the jack 12, and the rubber cone at the root of the pin 25 of the socket 2 is pressed against the sinking rubber round hole at the end of the jack 12 of the plug 1 , independently seal each pair of pin sockets;

2) Through the tight fit between the lock nut 11 on the plug 1 and the external thread at the front end of the inner shell 13 of the socket 2, the socket 2 and the plug 1 are tightly combined, and the sealing is realized by using the deformation of the rubber material of the sealing seat A15 at the contact part ;

3) The plug 1 and the socket 2 are sealed by sealing the sealing seat A15 and the sealing seat B23, the sealing body A16 and the sealing body B21 of epoxy resin and neoprene material;

4) The connection part is sealed by the 'O' ring 26 again.

The working pressure of the utility model ranges from 0 to 6.895Mpa, which can still ensure safe work in an environment where the water depth exceeds 500 meters. The wire and wire of the connector and between the wire and the shell can withstand a high-voltage test of 1500VDC, the insulation resistance is less than 100 megohms, and the maximum current leakage is 10 microamps.

Example 2

The difference from the example is that:

It is installed on the rear end of the socket housing 24 with a flange, and an annular groove is formed on the socket housing 24, and an 'O' ring 26 and a gasket 27 are placed in the annular groove; the structural shape of the sealing body A16 is linear; the socket 12, pin The number of 25 is also 8 pairs.

The quantity of jack 12 and pin 25 described in the utility model also can be 3 pairs, or more than 8 pairs.

Claims (6)

1. watertight electrical connector, it is characterized in that: be divided into plug (1) and socket (2) two parts, wherein: described plug (1) is by locking nut (11), jack (12), inner housing (13), circlip (14), interior external seal is formed with seal receptacle A (15) and seal A (16), inner housing (13) one ends have protruding platform, circlip (14) and locking nut (11) are sleeved on outside the inner housing (13), be stuck in protruding platform inboard, jack (12) is arranged in the inner housing (13), and the gap is left in jack (12) one end distance inner housing (13) ends, form the sinking circular hole, seal receptacle A (15) forms column structure for leaving contact pin with the space, has a crescent shaped groove that plays the role of positioning in sidewall edge, and seal A (16) envelope lead is in jack (12) other end;

Described socket (2) is by sealing seal B (21), rest pad (22), seal receptacle B (23), Socket casing (24), contact pin (25), sealing ' O ' circle (26), packing ring (27) and attaching nut (28) form, and rest pad (22) is provided with at least 3 holes, and contact pin (25) correspondence is installed on the hole of rest pad (22), both together pack in the Socket casing (24), Socket casing (24) front inner wall is established annular groove, and seal receptacle B (23) is installed in its groove cavity, and seal receptacle B (23) is a tubular, its sidewall and Socket casing (24) groove fit, have a crescent boss that plays the role of positioning in sidewall edge, match, contact pin (25) is installed in the middle of its cylindrical base with seal receptacle A (15) crescent shaped groove, and closely contact with rest pad (22), around contact pin (25) root, establish frustum; Socket casing (24) rear portion encapsulates with seal B (21), and Socket casing (24) front and back ends outer wall is equipped with screw thread.

2. according to the described watertight electrical connector of claim 1, it is characterized in that: be installed in Socket casing (24) rear end with attaching nut (28), go up the formation annular groove at Socket casing (24), the two side is put into ' O ' circle (26) and packing ring (27), the threaded engagement of attaching nut (28) and Socket casing (24) rear end respectively in the annular groove.

3. according to claim 1 or 2 described watertight electrical connectors, it is characterized in that: be packed in Socket casing (24) rear end with flange, put ' O ' circle (26) in the circle of the flange ' O ' on the Socket casing (24) mounting groove.

4. according to the described watertight electrical connector of claim 1, it is characterized in that: seal A (16) planform is linear pattern or L type.

5. according to the described watertight electrical connector of claim 1, it is characterized in that: jack (12), contact pin (25) quantity are 3,6,8 pairs, or more than 8 pairs.

6. according to the described watertight electrical connector of claim 1, it is characterized in that: seal A (16), seal receptacle A (15) and seal receptacle B (23) adopt chloroprene rubber material; Seal B (21) adopts epoxide resin material; Socket casing (24), inner housing (13) adopt metal material.

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