CN213782418U - Circular electric connector - Google Patents

Abstract

The utility model discloses a circular electric connector, which comprises a plug and a socket, wherein the plug comprises a plug shell and jacks arranged on a jack base in the plug shell, the plug shell is provided with a connecting nut, the socket comprises a socket shell and pins arranged on a pin base in the socket shell, the tail part of the socket is provided with a first thread, the head part of the socket is provided with a second thread matched with the connecting nut, the thread directions of the first thread and the second thread are opposite, and the plug is connected with the socket through the connecting nut; the utility model has the characteristics of small, resistant environment, high reliability.

Description

Circular electric connector

Technical Field

The utility model relates to an electric connector technical field, especially a circular electric connector.

Background

The connector is used for connecting and separating the ignition power supply and the actuating element, and meets the requirements of customers on small volume and high reliability of the electric connector; the socket is a socket inserted by one or more circuit wiring, the socket can be connected with the wiring through the socket, and is convenient for being connected with other circuits, and the socket is fixed on a panel of the case through screws or threads; the plug is a movable connector and is connected with a device using electric power through a wire. The original product has the shape shown in fig. 1, wherein I in fig. 1 is a socket, II is a plug, fig. 2 is a schematic structural diagram of the original socket, fig. 3 is a right side view of the original socket, and fig. 4 is a schematic structural diagram of the original plug, the original socket comprises a socket shell 5, a convex key 10, a contact pin 7, a boundary gasket 12, a hexagon nut 13, an O-shaped sealing ring 11 and a contact pin base 6; at present, the electric connector used by the equipment occupies a large space, has more parts, is complex to process, has larger overall dimension and is not beneficial to the miniaturization requirement of military equipment. On the one hand, the volume of the electric connector needs to be compressed, and the electric connector is still interchangeable with the original electric connector, and the normal use of the original electric connector is kept. Therefore, the size of the interface of the improved electrical connector is required to be unchanged, that is, the positioning mode and the connection mode of the plug and the socket are required to be unchanged, on the basis, the electrical connector is made as small as possible, and the occupied space is as small as possible.

In summary, the conventional electrical connector has the following disadvantages:

1. the socket of the original electric connector is large in size and large in occupied space, and the requirement on narrow space is difficult to meet;

2. the socket I of the original electric connector is arranged on a panel of a chassis by adopting the hexagon nut 13, and the thread directions of the hexagon nut 13 and the connecting nut 4 on the plug II are consistent, so that the installed hexagon nut 13 is easy to loosen when the plug II and the socket I are plugged; the loosening of the hexagon nut 13 can lead to the situation that the inside of the case cannot be sealed, and the electrical continuity of the electrical connector is poor;

3. the socket I of the original electric connector is provided with only one convex key 10 for positioning the plug, and the plug II can not be inserted after rotating 180 degrees relative to the socket I.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the prior art, the utility model aims at providing a circular electric connector, the utility model has the characteristics of small, resistant environment, high reliability.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a circular electric connector, includes plug and socket, the plug includes plug housing and locates jack on the jack base in the plug housing, the last coupling nut that is equipped with of plug housing, the socket includes socket housing and locates contact pin on the contact pin base in the socket housing, the socket afterbody is equipped with first screw thread, the head of socket be equipped with the second screw thread that coupling nut matches, just the screw thread opposite direction of first screw thread and second screw thread, the plug passes through coupling nut with the socket is connected.

As a further improvement of the utility model, the inner wall of the junction of socket shell and plug shell is equipped with the convex key, the inner wall of the junction of plug shell and socket shell be equipped with the recess that the convex key matches.

As a further improvement, the inner wall of the junction of the socket housing and the plug housing is provided with a pair of convex keys, the inner wall of the junction of the plug housing and the socket housing is provided with a pair of grooves matched with the convex keys.

As a further improvement of the utility model, the afterbody of socket is equipped with O type sealing washer.

As a further improvement of the utility model, the contact pin base is provided with a boundary pad.

As a further improvement of the present invention, the maximum outer diameter of the socket housing is a square structure.

As a further improvement of the utility model, the contact pin base is made of polyphenylene sulfide, and the contact pin is made of brass.

As a further improvement of the present invention, the socket housing is made of stainless steel.

The utility model has the advantages that:

1. the utility model provides an original electric connector be difficult to satisfy installation space's demand, the great problem of occupation space:

original electric connector socket size: a1 ═ 20mm, φ B ═ 22mm, and D ═ 20 mm;

improved electrical connector receptacle dimensions: a is 13mm, phi M is 14mm, and C is 18 mm;

2. the utility model solves the problems that the original socket of the electric connector adopts the hexagon nut to be arranged on the panel, the thread directions of the hexagon nut and the connecting nut on the plug are consistent, and the installed hexagon nut is easy to loosen when the plug and the socket are plugged, and the improved thread at the tail part of the socket is designed into a thread opposite to the thread;

3. the utility model solves the problem that the plug can not be inserted after rotating 180 degrees relative to the socket because only one convex key is arranged on the socket of the prior electric connector and positioned with the plug; the improved electric connector socket has two convex keys positioned with the plug, and the two convex keys have the same size, and the plug can still be inserted after rotating 180 degrees relative to the socket.

Drawings

FIG. 1 is a schematic view of a prior art product;

FIG. 2 is a schematic structural diagram of an original socket;

FIG. 3 is a right side view of the prior art socket;

FIG. 4 is a schematic structural diagram of an original plug;

fig. 5 is a schematic structural diagram of a socket according to an embodiment of the present invention;

fig. 6 is a right side view of the socket according to the embodiment of the present invention.

Reference numerals:

I. socket, II, plug, 1, plug casing, 2, jack base, 3, jack, 4, coupling nut, 5, socket casing, 6, contact pin base, 7, contact pin, 8, first screw thread, 9, second screw thread, 10, convex key, 11, O type sealing washer, 12, boundary pad, 13, hexagon nut.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Examples

As shown in fig. 4-6, a circular electrical connector comprises a plug and a socket, wherein the plug comprises a plug housing 1 and a jack 3 arranged on a jack base 2 in the plug housing 1, a connection nut 4 is arranged on the plug housing 1, the socket comprises a socket housing 5 and a pin 7 arranged on a pin base 6 in the socket housing 5, a first thread 8 is arranged at the tail of the socket, a second thread 9 matched with the connection nut 4 is arranged at the head of the socket, and the first thread 8 and the second thread 9 have opposite thread directions, and the plug is connected with the socket through the connection nut 4.

As shown in fig. 6, in the present embodiment, a convex key 10 is disposed on an inner wall of a connection portion between the socket housing 5 and the plug housing 1, and a concave groove (not shown) matching with the convex key 10 is disposed on an inner wall of a connection portion between the plug housing 1 and the socket housing 5; specifically, in this embodiment, a pair of convex keys 10 is disposed on an inner wall of a connection portion between the socket housing 5 and the plug housing 1, and a pair of concave grooves matching with the convex keys 10 is disposed on an inner wall of a connection portion between the plug housing 1 and the socket housing 5.

In this embodiment, the tail of the socket is provided with an O-ring 11.

In this embodiment, the pin base 6 is provided with a dense pad 12.

In the present embodiment, the maximum outer diameter of the socket housing 5 is a square structure.

In the present embodiment, the pin base 6 is made of polyphenylene sulfide, and the pin 7 is made of brass.

In the present embodiment, the socket housing 5 is made of stainless steel.

The present embodiment is further illustrated below:

on the premise of still being interchangeable with the original product, the embodiment reduces the space occupied by the socket of the electric connector on one hand and reduces the part types of the electric connector on the other hand. The original one convex key 10 is changed into two convex keys 10 with the same size on the design of the electric connector socket, so that the plug can still be inserted after rotating 180 degrees relative to the socket.

The circular electric connector socket provided by the embodiment can be applied to the fields of aerospace, aviation, ships, electronic devices and the like, and has the characteristics of small volume, environmental resistance and high reliability compared with the original similar products. The socket of the electric connector comprises a socket shell 5, a pin base 6, an O-shaped sealing ring 11, a pin 7, a boundary gasket 12 and a twisted-pair cable, and the problems in the prior art are solved through reasonable structural design and material selection.

The socket housing 5 in this embodiment is the main support part of the socket, on which the remaining parts are mounted and which has a positioning function when connected to the plug; the pin base 6 is assembled in the socket shell 5; the 1 pin 7 is assembled in the pin base 6; the O-shaped sealing ring 11 is assembled in an outer groove of the socket shell 5; the interface gasket 12 is tightly assembled on the end surface of the pin base 6; the twisted pair cable is connected to the pin 7 by crimping to form a pin assembly that fits within the pin base 6 and the receptacle housing 5. Specifically, the tail encapsulation cavity of the socket in this embodiment is cylindrical, and an annular groove is formed in the cylindrical encapsulation cavity to fix the glue solution after encapsulation and increase the firmness of the glue solution.

According to the use requirement, in order to keep the interchangeability of the original electric connector plug and the improved socket and enable the plug and the improved socket to be normally matched for use, the original contact pair spacing (d), the contact pair plugging depth (L) and the connecting thread size (M1) are reserved on the design; on the other hand, the diameter and the length of the electric connector socket are lower than those of the original electric connector socket; when the socket is improved, starting from the tail part of an outlet wire of the original electric connector socket, the original locking mode of the hexagon nut 13 of the electric connector socket is changed into a mode of changing the rear end of the socket into a thread (M3), and the socket is arranged on a panel through the first thread 8, so that the tail part size of the original electric connector socket can be reduced, the installation space is saved, and the types of parts are reduced; the rear end of the improved socket is designed into a second thread 9 of M3, which is opposite to the direction of a first thread 8 of M1, and the socket arranged on a panel cannot be loosened by screwing the connecting nut 4 when the plug and the socket are plugged together, so that the unreliable contact with the plug and the leakage inside the case are caused; the socket is designed into a square shape in the largest appearance, and is convenient to screw when being installed in the later period. The original socket is only provided with one convex key 10 for positioning the plug, and the plug cannot be plugged for normal use after rotating 180 degrees relative to the socket; in order to ensure that the plug can still be inserted and normally used after rotating 180 degrees relative to the socket, two symmetrical convex keys 10 are designed on the improved socket and have the same size, and two grooves matched with the convex keys are designed on the plug.

The key technical point of the embodiment is that the socket is directly arranged on the panel through a first thread 8 at the rear end and is sealed through an O-shaped sealing ring 11; the socket is provided with two symmetrical convex keys 10 with the same size, so that the plug can still be inserted after rotating 180 degrees relative to the socket; thereby realizing the structure and the characteristic of butt joint and conduction of the hole sites of the plug and the socket.

For the materials of each component in the embodiment:

1. pin base material:

the pin base 6 is made of polyphenylene sulfide (PPS-G30) and meets the standard HG/T2001-1991. The material has higher dielectric constant and mechanical strength, is suitable for manufacturing high-voltage-resistant parts, and has better dimensional stability. Because the fluidity of the molten state is good, the injection molding machine is suitable for injection processing of parts with complex structures, and the pin 7 is assembled and pressed into the pin base 6 at the later stage.

2. And pin 7 material:

the contact pin 7 is made of copper wire of brass H62-Y2 which meets the national standard GB/T14954-94. The pin base 6 is plated with gold according to the national military standard GJB 1941, and the thickness of the gold plating layer is not less than 1.27 mu m. The materials are all domestic common electric contact base materials.

3. Socket housing 5 material:

the casing part contains socket casing 5, and the casing part adopts stainless steel material, and the material trade mark is: 316L, which conforms to the national standard GB/T1220-94. The material characteristics are as follows: the metal shell has good mechanical property and excellent corrosion resistance, 316L has the best salt spray resistance and environmental adaptability, and the metal shell has the capability of preventing electromagnetic interference.

The socket shell 5 is machined by a numerical control lathe, a numerical control milling machine, a numerical control slotting machine, a machining center and other equipment.

4. Sealing element:

the interface gasket 12 and the O-shaped sealing ring 11 are important sealing elements in the electric connector and play an important role in the connector; silicon rubber (6145) which is a material commonly used in the electric connector industry is adopted. The silicon rubber has excellent environmental resistance, ageing resistance and corrosion resistance, has good elasticity, can normally work at the temperature of between 55 ℃ below zero and 200 ℃, keeps the elasticity and achieves the sealing effect.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (8)

1. The utility model provides a circular electric connector, includes plug and socket, the plug includes plug housing and locates jack on the jack base in the plug housing, be equipped with coupling nut on the plug housing, a serial communication port, the socket includes socket housing and locates contact pin on the contact pin base in the socket housing, the socket afterbody is equipped with first screw thread, the head of socket be equipped with the second screw thread that coupling nut matches, just the screw thread opposite direction of first screw thread and second screw thread, the plug passes through coupling nut with the socket is connected.

2. The circular electrical connector as claimed in claim 1, wherein the inner wall of the junction of the socket housing and the plug housing is provided with a protruding key, and the inner wall of the junction of the plug housing and the socket housing is provided with a groove matching with the protruding key.

3. The circular electrical connector as claimed in claim 2, wherein the inner wall of the junction of the socket housing and the plug housing is provided with a pair of protruding keys, and the inner wall of the junction of the plug housing and the socket housing is provided with a pair of grooves matching with the protruding keys.

4. The circular electrical connector as claimed in claim 1, wherein the rear portion of the socket is provided with an O-ring seal.

5. The circular electrical connector as claimed in claim 1, wherein the pin base is provided with a gasket.

6. The circular electrical connector of claim 1, wherein the maximum outer diameter on the receptacle housing is a square configuration.

7. The circular electrical connector as claimed in claim 1, wherein the pin base is made of polyphenylene sulfide and the pin is made of brass.

8. The round electrical connector as recited in claim 1, wherein the receptacle housing is made of stainless steel.

Images