CN216355179U

CN216355179U - Miniature electric connector

Info

Publication number: CN216355179U
Application number: CN202123229114.8U
Authority: CN
Inventors: 邱磊; 何文鼎
Original assignee: Mianyang City Jinhua Western Electric Manufacturing Co ltd
Current assignee: Mianyang City Jinhua Western Electric Manufacturing Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-04-19
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a miniature electric connector, which comprises a plug and a socket which are matched with each other; the socket includes: the socket comprises a socket shell, wherein a mounting cavity is formed in the socket shell; the hole front mounting plate is assembled in the mounting cavity; the jack sleeve is assembled in the hole front mounting plate; the first sealing ring is assembled in the mounting cavity; the boundary sealing gasket is assembled on the front end surface of the hole front mounting plate and is in sealing connection with the sealing ring; one end of the first cable is connected with the jack sleeve, and the other end of the first cable is arranged outside the installation cavity; the socket tail cover is arranged at the tail end of the socket shell; and the pouring sealant is used for fully pouring the mounting cavity between the rear end face of the mounting plate before the hole and the tail part of the mounting cavity. 1. The problem of original electric connector be difficult to satisfy installation space's demand, occupation space is great is solved.

Description

Miniature electric connector

Technical Field

The utility model relates to the technical field of electric connectors, in particular to a miniature electric connector.

Background

Currently, most of the electrical connectors on the market have the following drawbacks:

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

2. the original electric connector has few paths, a plurality of electric connectors need to be arranged, the using space and the wiring difficulty are increased, and the error probability is increased;

3. can not be used in two low-pressure environments, namely 20Pa and 6.65 multiplied by 10^-3The problem of normal work under Pa;

4. the original cable has larger outer diameter, fewer cores and heavy weight.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a micro electrical connector, which is intended to solve the problems of the related art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a miniature electric connector comprises a plug and a socket which are matched with each other; the socket includes: the socket comprises a socket shell, wherein a mounting cavity is formed in the socket shell; the hole front mounting plate is assembled in the mounting cavity; the jack sleeve is assembled in the hole front mounting plate; the first sealing ring is assembled in the mounting cavity; the boundary sealing gasket is assembled on the front end surface of the hole front mounting plate and is in sealing connection with the sealing ring; one end of the first cable is connected with the jack sleeve, and the other end of the first cable is arranged outside the installation cavity; the socket tail cover is arranged at the tail end of the socket shell; and the pouring sealant is used for fully pouring the mounting cavity between the rear end face of the mounting plate before the hole and the tail part of the mounting cavity.

In some embodiments, the plug comprises: the plug comprises a plug shell, a needle front mounting plate, a contact pin assembly, a second sealing ring, a second cable and a plug tail cover, wherein the needle front mounting plate is assembled in the plug shell; the contact pin assembly is assembled in the contact pin front mounting plate; the second sealing ring is assembled outside the plug shell; the second cable is connected with the pin assembly, when the plug is connected with the socket, the pin assembly is correspondingly inserted into the jack sleeve, the plug tail cover is installed at the tail end of the plug shell, and pouring sealant is filled in the plug shell between the pin front installation plate and the plug tail cover in a pouring mode.

In some embodiments, the plug housing is provided with a connection ring for connecting and locking with the socket housing.

In some embodiments, the pin assembly is a twisted wire pin.

Drawings

FIG. 1 is a schematic structural diagram of a miniature electrical connector according to an embodiment;

FIG. 2 is a schematic view of a receptacle of the miniature electrical connector of the embodiment;

FIG. 3 is a schematic diagram of a plug of the miniature electrical connector of the embodiment;

illustration of the drawings:

12-socket, 13-plug, 14-socket housing, 15-first sealing ring, 16-packing, 17-jack sleeve, 18-O-ring, 19-jack front mounting plate, 20-socket tail cap, 21-first cable, 22-stranded wire pin, 23-pin front mounting plate, 24-connecting ring, 25-plug housing, 26-second sealing ring, 27-plug tail cap, 28-second cable.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

On the contrary, this application is intended to cover any alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the application as defined by the appended claims. Furthermore, in the following detailed description of the present application, certain specific details are set forth in order to provide a better understanding of the present application. It will be apparent to one skilled in the art that the present application may be practiced without these specific details.

A micro electrical connector according to an embodiment of the present application will be described in detail with reference to fig. 1 to 3. It is to be noted that the following examples are only for explaining the present application and do not constitute a limitation to the present application. The socket referred to in this embodiment refers to a socket into which one or more circuit wires are inserted, through which the wires can be inserted to facilitate connection with other circuits, and the socket is fixed on the panel of the chassis by screws or threads.

In an embodiment of the present application, as shown in FIGS. 1-3, a miniature electrical connector may include a plug 13 and a receptacle 12 that mate with each other; the socket 12 includes: a socket housing 14, said socket housing 14 being the main supporting part of the socket 12, on which the remaining components are mounted and which has a positioning function when connected to the plug 13; an installation cavity is arranged in the socket shell 14; a pre-orifice mounting plate 19, the pre-orifice mounting plate 19 being fitted within the mounting cavity; a jack sleeve 17, the jack sleeve 17 being fitted within the pre-hole mounting plate 19; a first seal ring 15, wherein the first seal ring 15 is assembled in the mounting cavity; the interface sealing gasket 16 is assembled on the front end surface of the hole front mounting plate 19 and is connected with the sealing ring in a sealing way; one end of the first cable 21 is connected with the jack sleeve 17, and the other end of the first cable 21 is arranged outside the mounting cavity; a socket tail cap 20, the socket tail cap 20 being mounted at the tail end of the socket housing 14; and pouring sealant, wherein the pouring sealant is filled in the mounting cavity between the rear end face of the mounting plate 19 before the hole and the tail part of the mounting cavity.

The plug 13 includes: the plug comprises a plug shell 25, a pin front mounting plate 23, a pin assembly, a second sealing ring 26, a second cable 28 and a plug tail cover 27, wherein the plug shell 25 is a main supporting part of the plug 13, and the rest parts are arranged on the plug shell and have a positioning function when being connected with the socket 12; the needle front mounting plate 23 fits within the plug housing 25; the pin assembly is assembled in the pin front mounting plate 23; the second seal ring 26 is assembled outside the plug housing 25; the second cable 28 is connected with the pin assembly, when the plug 13 is connected with the socket 12, the pin assembly is correspondingly inserted into the jack sleeve 17, the plug tail cover 27 is installed at the tail end of the plug shell 25, and pouring sealant is filled and sealed in the plug shell 25 between the pin front installation plate 23 and the plug tail cover 27, so that sealing can be achieved, and firmness of the plug shell can be improved.

The utility model discloses an electric connector socket 12 which can be applied to the fields of aerospace, aviation, ships, electronic devices and the like, and has the characteristics of small volume, environmental resistance, high reliability and stable operation under low air pressure compared with the original similar products. The electric connector socket 12 comprises a socket shell 14, a hole front mounting plate 19, a first sealing ring 15, a jack sleeve 17, a dense gasket 16, a first cable 21, an O-shaped ring (phi 13.5 multiplied by phi 1.5) and a socket tail cover 20, and solves the problems in the prior art through reasonable structural design and material selection. The O-ring plays a very important role in the installation and use of the socket 12; the utility model also discloses an electric connector plug 13 which can be applied to the fields of aerospace, aviation, ships, electronic devices and the like, and has the characteristics of small volume, environmental resistance, high reliability and stable operation under low air pressure compared with the original similar products. The electric connector plug 13 comprises a plug shell 25, a stranded wire contact pin 22, a second sealing ring 26, a connecting ring 24, a plug tail cover 27, a second cable 28 and a pin front mounting plate 23, and the problems in the prior art are solved through reasonable structural design and material selection.

The socket 12 is a socket into which one or more circuit wiring is inserted, and through which the wiring can be inserted, so that the socket is convenient to be connected with other circuits, and the socket 12 is fixed on a panel of the case through screws or threads; the plug 13 is a movable connector and is connected with a device using electric power through a wire.

The miniature electric connector provided by the utility model reduces the space occupied by the socket 12 and the plug 13 of the electric connector on one hand, and greatly reduces the radial and axial dimensions compared with the original electric connector, and saves the installation space in the axial and radial directions; on the other hand, the number of contact pairs of the electric connector is increased on the basis of reducing the radial and axial sizes, and is increased from the original 4 cores to the current 19 cores, compared with the prior art, the 15-core passage is increased, more signals can be transmitted, the number of the electric connectors is reduced, the layout on equipment is simplified, the wiring is easier, and the reliability is obviously improved; meanwhile, the types and the number of the parts of the electric connector plug 13 and the socket 12 are reduced, so that the processing period is shortened.

In the design of the electric connector socket 12, the contact elements are changed from the original jacks into the jack sleeves 17, so that the processing difficulty of the jacks is reduced, the diameters of the jacks are reduced, the volume is saved, and more contact elements can be arranged in a limited space.

In the design of the electric connector plug 13, the contact is changed from the original rigid contact pin to the elastic stranded wire contact pin 22, compared with the original electric connector contact pin, the processing difficulty of the contact pin is increased to a certain extent, but the diameter of the jack is reduced, the volume is reduced, the contact reliability of the plug 13 and the socket 12 in the connection use is improved, and more contact elements can be arranged in a limited space; the elastic stranded wire contact pin 22 enables the plug 13 and the socket 12 to correct errors generated by machining in the inserting and combining process, improves the contact reliability of the plug 13 and the socket 12 after inserting and combining, and enables the plug to be more stable and reliable in severe environments such as impact and vibration.

The plug 13 is connected with the thread on the socket 12 through the thread on the connecting ring 24, so that the locking is reliable, the self-locking advantage is achieved, the processing difficulty is low during processing and manufacturing, the measurement and detection are easy, and the cost is low. The plug 13 is connected with an actuating element or other required equipment and devices; the socket 12 is mounted on a power supply cabinet or functional equipment or device; the plug 13 is inserted into the socket 12 for the purpose of completing the circuit to operate the actuators, devices and equipment.

The hole front mounting plate 19 and the needle front mounting plate 23 are made of polybutylene terephthalate (PBT) and meet 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 mobility of molten state is good, be fit for the spare part of injection processing complex structure, assemble respectively in the contact pin base and the jack base with contact pin subassembly and jack sleeve 17 later stage.

The sleeve of the pin assembly of the jack sleeve 17 is made of phi 2 tin bronze wires which meet the national standard GB/T14954-94. The substrate is gold-plated according to the national military standard GJB 1941, and the thickness of the gold-plated layer is not less than 1.27 μm. The twist needle is made of beryllium bronze wire, has excellent elasticity and conductivity, and 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.

The casing part contains socket casing 14, plug casing 25, plug tail-hood 27, socket tail-hood 20, and the casing part all 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 high-strength stainless steel has good mechanical property and excellent corrosion resistance, 316L in stainless steel materials has excellent salt spray resistance and environmental adaptability, and the conductive metal shell has electromagnetic interference resistance.

The socket shell 14, the plug shell 25, the plug tail cover 27 and the socket tail cover 20 are all machined by adopting equipment such as a numerical control lathe, a numerical control milling machine, a numerical control slotting machine, a machining center and the like.

The sealing gasket 16 and the first and

second sealing rings

15 and 26 are important sealing elements in the electrical connector, wherein the first and

second sealing rings

15 and 26 are used for sealing the end faces of the plug 13 and the socket 12 respectively after the plug 13 and the socket 12 are butted. And the packer 16 serves to seal the receptacle bushing 17 and the pre-hole mounting plate 19. Plays an important role in the connector; silicon rubber (6144) which is a material commonly used in the electrical 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 good sealing effect.

In some embodiments, the plug housing 25 is provided with a connection ring 24 for connecting and locking with the receptacle housing 14. The plug 13 is connected with the thread on the socket 12 through the thread on the connecting ring 24, so that the locking is reliable, the self-locking advantage is achieved, the processing difficulty is low during processing and manufacturing, the measurement and detection are easy, and the cost is low. The plug 13 is connected with an actuating element or other required equipment and devices; the socket 12 is mounted on a power supply cabinet or functional equipment or device; the plug 13 is inserted into the socket 12 for the purpose of completing the circuit to operate the actuators, devices and equipment.

The working environment of the existing high-voltage electric connector is mainly under the atmospheric condition, the working voltage in the low-pressure environment can be obviously reduced, and the working voltage is only 1/5-1/10 under the normal temperature; the high working voltage capability in a low-pressure environment is poor and the volume is large. Under the condition of electrification, air molecules around the contact element (the jack) tend to be separated from intermolecular constraint, the molecular gap is small under the normal temperature normal state, the acting force of the air molecules separated from the intermolecular constraint is small, the molecular motion is in a stable state, and higher voltage can be borne. In a low-pressure state, the air molecule gap is large, the acting force for separating from the restraint between molecules is large, and the movement tendency is large, so that the voltage bearing capacity of the product is reduced under the low pressure.

Aiming at the phenomenon, the product is filled with glue solution through the tail encapsulation pouring sealant, so that the air channel is blocked, air molecules in the electric connector socket 12 are not diffused outwards under low air pressure, the air density is not reduced, and the product can bear the impact action of high voltage when being electrified. And after the potting adhesive is in pressure connection with the cable at the tail part of the jack, the potting adhesive can play an insulating role between the jacks, so that the medium voltage resistance of the electric connector is improved.

The micro electrical connector disclosed in the present application may have the following advantages, including but not limited to:

1. the problems that the original electric connector is difficult to meet the requirement of installation space and occupies a large space are solved;

2. the problem that the number of cores of the conventional electric connector is small is solved;

3. solves the problem that the prior art can not realize 20Pa and 6.65 multiplied by 10 Pa under two low-pressure environments^-3The problem of normal work under Pa;

4. the problems of large outer diameter, small number of cores and heavy weight of the original cable are solved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A miniature electrical connector, comprising:

a plug and a socket which are matched with each other; the socket includes:

the socket comprises a socket shell, wherein a mounting cavity is formed in the socket shell;

the hole front mounting plate is assembled in the mounting cavity;

the jack sleeve is assembled in the hole front mounting plate;

the first sealing ring is assembled in the mounting cavity;

the boundary sealing gasket is assembled on the front end surface of the hole front mounting plate and is in sealing connection with the sealing ring;

one end of the first cable is connected with the jack sleeve, and the other end of the first cable is arranged outside the installation cavity;

the socket tail cover is arranged at the tail end of the socket shell;

and the pouring sealant is used for fully pouring the mounting cavity between the rear end face of the mounting plate before the hole and the tail part of the mounting cavity.

2. The miniature electrical connector of claim 1, wherein said plug comprises: the plug comprises a plug shell, a needle front mounting plate, a contact pin assembly, a second sealing ring, a second cable and a plug tail cover, wherein the needle front mounting plate is assembled in the plug shell; the contact pin assembly is assembled in the contact pin front mounting plate; the second sealing ring is assembled outside the plug shell; the second cable is connected with the pin assembly, when the plug is connected with the socket, the pin assembly is correspondingly inserted into the jack sleeve, the plug tail cover is installed at the tail end of the plug shell, and pouring sealant is filled in the plug shell between the pin front installation plate and the plug tail cover in a pouring mode.

3. The miniature electrical connector of claim 2, wherein said plug housing has an attachment ring for locking with said receptacle housing.

4. The miniature electrical connector of claim 3, wherein said pin assembly is a twisted wire pin.