CN110768046A

CN110768046A - Chip type signal electric connector

Info

Publication number: CN110768046A
Application number: CN201911168666.7A
Authority: CN
Inventors: 齐鹏程; 孔德勇; 熊渊; 刘晓辉; 张浚哲; 崔艳磊
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-02-07

Abstract

The invention relates to a chip type signal electric connector, which comprises a plug and a socket, wherein the front ends of the plug and the socket are butted, and at least one layer of signal hole site which extends along the axial direction and is used for assembling a chip type contact pin/chip type jack is arranged in an insulator of the plug and the socket; the tail part of the socket insulator is connected with an insulating pressing plate for fixing and sealing the tail part of the sheet type jack extending out of the insulator; the tail parts of the plug insulator and the socket insulating pressing plate are in a step shape, and the tail parts of the sheet type contact pins and the sheet type jack which are arranged in a layered mode are located on the corresponding step surfaces and are provided with exposed cable connecting parts; and the tail part of the plug insulator and the outer side of the socket insulator are both injection-molded with a plastic package shell, and the rear end of the plastic package shell extends to the rear of the contact and is matched with the sheath of the cable connected with the tail part of the contact. The invention solves the use requirements of quick and reliable connection and miniaturization, and has the characteristics of simple process, low cost and easy mass production.

Description

Chip type signal electric connector

Technical Field

The invention relates to the technical field of signal connectors, in particular to a chip type signal electric connector.

Background

Electric bicycle and electric scooter etc. green vehicle become city traffic's main power gradually because of its advantages such as convenient to use, small, green environmental protection, wherein signal electric connector plays especially important effect as electric motor car control system's main component part. The miniaturization and intelligence of the electric bicycle also put higher demands on the signal electric connector, and the signal electric connector in the future will be developed towards the direction of fast and reliable connection, miniaturization and low cost.

The existing electric bicycle signal connector interfaces on the market are various and miscellaneous, do not form a uniform standard, and have the following problems: (1) the existing signal connector has larger size and does not accord with the miniaturization intelligent development trend of the electric vehicle; (2) the existing signal connector adopts a mode of round pin and round hole, the production process is complex, the cost is high, and batch production is not easy to realize.

Disclosure of Invention

The invention aims to provide a novel chip type signal electric connector, which meets the use requirements of quick and reliable connection and miniaturization by adopting a chip type contact element structure, forcibly installing a plurality of chip type contact elements into hole positions of an insulator, welding wires at the tail part and then plastically packaging and integrally molding.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The invention provides a chip type signal electric connector, which comprises a plug and a socket, wherein the front ends of the plug and the socket are butted, and at least one layer of signal hole site which extends along the axial direction and is used for assembling a chip type pin/chip type jack is arranged in an insulator of the plug and the socket; the tail part of the socket insulator is connected with an insulating pressing plate for fixing and sealing the tail part of the sheet type jack extending out of the insulator; the tail parts of the plug insulator and the socket insulating pressing plate are in a step shape, and the tail parts of the sheet type contact pins and the sheet type jack which are arranged in a layered mode are located on the corresponding step surfaces and are provided with exposed cable welding parts; and the tail part of the plug insulator and the outer side of the socket insulator are both injection-molded with a plastic package shell, and the rear end of the plastic package shell extends to the rear of the contact and is matched with the sheath of the cable welded at the tail part of the contact.

The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.

In the chip signal electrical connector, the end of the insulator is in a bidirectional step shape.

In the chip signal electrical connector, the plug insulator and the socket insulator are respectively provided with an annular groove for plastic package material to flow into when plastic package is integrally formed so as to improve the bonding force between the plastic package shell and the insulator.

In the chip signal electric connector, the outer peripheral surface of the plug insulator is provided with the annular convex rib, and the socket plastic package outer shell is internally provided with the annular groove which is in interference fit with the annular convex rib to realize locking and waterproof sealing.

In the chip signal electrical connector, the front end of the annular convex rib is provided with a guide surface, and the insertion surface of the plastic package housing of the socket is provided with a guide surface which is matched with the insertion surface to realize smooth insertion of the two.

In the chip signal electrical connector, the insulation pressing plate and the socket insulator are fixed by matching the boss and the groove on the connecting surface of the insulation pressing plate and the socket insulator.

According to the chip type signal electric connector, the welding spots at the tail part of the chip type contact element are protected by glue after the chip type contact element is welded with a cable, and the purposes of preventing the welding spots from falling off and enhancing the tail part sealing during plastic package integrated forming are achieved.

In the chip type signal electric connector, the chip type jack adopts a double-side cantilever beam structure which forms double-side contact when being inserted into the chip type pin to realize stable signal transmission.

In the chip signal electric connector, the chip contact pin and the chip jack are both plated with gold at the contact part, nickel is plated at the middle part, and tin is plated at the welding part at the tail part.

The chip type signal electrical connector as set forth above, wherein said plug and socket insulators have colors for identifying the number of the product cores.

Compared with the prior art, the invention has obvious advantages and beneficial effects. By the technical scheme, the chip type signal electric connector can achieve considerable technical progress and practicability, has wide industrial utilization value and at least has the following advantages: the contact pieces are arranged in layers, and the welding surfaces of the tail parts of different layer contact pieces can be staggered in layers, so that the tail ends of the contact pieces of the multi-hole-site connector can be welded in layers, the arrangement density of the contact pieces is improved, and the overall dimension of a product is greatly reduced.

The sheet type jack adopts a bilateral cantilever beam structure, and a sheet type contact pin forms bilateral contact when inserted, so that current signal transmission is realized, and the structure has reliable performance and stronger fatigue endurance; barb structures are arranged on the sheet type contact pin and the jack, and a double-layer barb is arranged on the sheet type jack to realize the stable installation of the contact element; welding knurls are designed at the tail ends of the sheet type contact pins and the jacks so as to facilitate welding of cables.

To sum up: the tail ends of the plug and the socket are in plastic package forming with the cable, and the cable is directly connected to the corresponding position of the electric vehicle. When the two plastic package shells are plugged, the plastic package shells are held by hands to align triangular arrows on the two plastic package shells and forcibly plug the triangular arrows, and signal current is transmitted through cables and the sheet type contact pin jacks after the two plastic package shells are plugged. When the plug and the socket are separated, only the tail ends of the plug and the socket plastic package shell are respectively held tightly, and the plug and the socket are pulled out forcibly. The invention solves the use requirements of quick and reliable connection and miniaturization, has the characteristics of brand-new sheet type contact element structure design, simple process, low cost and easy mass production, and is very favorable for improving the productivity and reducing the cost.

Drawings

FIG. 1 is a schematic structural diagram of a chip signal electrical connector according to the present invention;

FIG. 2 is a cross-sectional view of a plug of the chip signal electrical connector of the present invention;

FIG. 3 is a schematic view of a plug insulator of the chip signal electrical connector according to the present invention;

FIG. 4 is a cross-sectional view of a wafer signal electrical connector socket according to the present invention;

FIG. 5 is a schematic view of an insulator of the chip signal electrical connector socket according to the present invention;

fig. 6 is a schematic diagram of the contact mating of the chip signal electrical connector according to the present invention.

[ description of main element symbols ]

1: plug with a locking mechanism

2: socket with improved structure

3: plug insulator

4: plug plastic package casing

5: sheet type long contact pin

6: chip type short contact pin

7: cable with a protective layer

8: a first annular groove

9: large chamfer angle

10: annular convex rib

11: socket insulator

12: sheet type long jack

13: sheet type short jack

14: plastic package casing of socket

15: annular groove

16: second annular groove

17: insulating pressing plate

18: key groove

19: sheet type contact pin

20: sheet type jack

21: welding knurling

22: double-layer barb

23: cantilever arm

24: barb

25: first step end face

26: anti-skid convex rib

27: second step end face

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the chip signal electrical connector according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Please refer to fig. 1-6, which are schematic structural diagrams of various parts of a chip type signal electrical connector according to the present invention, the electrical connector includes a plug 1 and a socket 2, wherein the plug 1 includes a plug insulator 3 and a plug plastic package housing 4, at least one layer of axially extending signal hole sites is radially disposed in the plug insulator, the tail end of the insulator having the signal hole sites arranged in layers is stepped, each layer of signal hole sites corresponds to one layer of step, and the upper portion of the signal hole sites on the surface of each layer of step is open, so that the surface of the tail end of the insulator in each layer of hole sites for connecting with a cable is open. In the embodiment of the invention, in order to reduce the size of the connector, the tail end of the insulator is in a bidirectional step shape.

Each layer of the signal hole sites comprises one or more signal hole sites. The piece type contact pin is arranged in the signal hole position in a forced mode, and barbs are arranged on two sides of the piece type contact pin. After the sheet type contact pin is forcibly installed, the tail part of the sheet type contact pin is exposed out of the insulator part and is connected with a cable. In the embodiment of the present invention, the portion of the sheet type pin for connecting with the cable is provided with the welding knurl 21, but is not limited thereto. The plug plastic package shell 4 is formed on the outer side of the tail of the plug insulator 3 in an injection molding mode, and the rear end of the plug plastic package shell extends to the rear of the contact and is matched with the sheath of the cable.

The socket 2 comprises a socket insulator 11, a socket plastic package shell 14 and an insulating pressure plate 17, wherein at least one layer of signal hole sites which extend along the axial direction and have open upper/lower parts at the tail ends are arranged in the socket insulator 11 along the radial direction. Each layer of the signal hole sites comprises one or more signal hole sites, sheet type jacks 20 are forcibly arranged in each signal hole site, and barbs are arranged on two sides of each sheet type jack 20.

After the sheet type jacks are forcibly installed in the signal hole sites in the socket insulator, the insulating pressing plate provided with the hole sites for the sheet type jacks 20 to penetrate is buckled at the tail ends of the socket insulator to fix the tail parts of the sheet type jacks 20. The tail end of the insulating pressing plate is in a step shape, each layer of step corresponds to one layer of signal hole site, and the signal hole sites on the surface of each layer of step are in an open state, so that the tail end of the piece type jack 20 is exposed out of the insulating pressing plate, and the surface of the exposed insulating pressing plate is welded with a cable. And the end surfaces of the tail parts of the insulating pressing plates where the adjacent layer sheet type jacks are located are not on the same plane, so that the tail parts of the sheet type jacks 20 on different layers can be conveniently welded with cables.

In the embodiment of the invention, the part of the sheet type jack, which is used for being welded with a cable, is provided with the welding knurl 21, so that the rapid automatic welding of a lead is easy to realize. The socket plastic package shell 14 is formed on the outer side of the insulator in an injection molding mode, and the rear end of the plastic package shell extends to the rear of the contact element and is matched with the sheath of the cable.

In the embodiment of the present invention, the insulating pressing plate 17 and the socket insulator 11 are fixed by the engagement of the projections and the recesses on the abutting surfaces thereof, so as to fix the tail portions of the contacts, but the present invention is not limited thereto.

The following describes in detail the embodiment of the present invention by taking a typical six-core product as an example, and other core numbers have the same effect.

The plug 1 of the six-core connector comprises 3 sheet type long pins 5, 3 sheet type

short pins

6, 1

plug insulator

3, 1 socket

plastic package shell

4 and 1 cable 7. Firstly, 3 chip type long pins 5 with barbs arranged on two sides are forcibly arranged in a plug insulator 3, the tail parts of the pins are flush with the end face 27 of a second-level step, then 3 chip type short pins 6 with barbs arranged on two sides are forcibly arranged in the plug insulator, the tail parts of the pins are flush with the end face 25 of a first-level step, a cable 7 is stripped and then welded to the position of a welding knurl 21 at the tail end of a chip type pin 19, finally, the pins are molded integrally by adopting a mold, and the tail part of a socket plastic package shell 4 extends to the outer skin of the cable 7 to be matched with the outer skin of the cable 7.

The plug insulator 3 is provided with an annular convex rib which can be matched with a plastic package shell on the socket end to form interference when being inserted, so that the functions of locking and sealing are achieved.

The plug insulator 3 is also provided with a first annular groove 8, and plastic package material flows into the annular groove during plastic package integrated molding, so that the binding force of the plastic package shell and the insulator is improved.

The bidirectional ladder formed at the tail end of the plug insulator 3 comprises two first ladder end faces 25 and one second ladder end face 27, so that the welding faces at the tail part of the contact can be staggered in a layered mode, the tail end of the multi-hole-site connector contact can be welded in a layered mode, the arrangement density of the contact is improved, and the overall dimension of a product is greatly reduced.

The welding point at the tail part of the chip type contact pin is protected by glue after welding, so that the welding point is prevented from falling off when the plastic package is integrally formed, and the tail part can be better sealed.

The socket 2 of the six-core connector comprises 3 sheet-type long jacks 12, 3 sheet-type

short jacks

13, 1

socket insulator

11, 1 insulating pressing plate 17, 1 socket

plastic package shell

14 and 1 cable 7. Firstly, 3 sheet type long jacks 12 with barbs arranged on two sides are forcibly arranged in the socket insulator of 3 hole sites in the middle layer, then 3 sheet type short jacks with barbs arranged on two sides are forcibly arranged in the hole sites on two sides of the socket insulator, then the insulating pressing plate 17 is buckled into the tail end of the socket insulator 11, and the jacks are fixed and limited.

The afterbody of insulating clamp plate 17 is double-deck echelonment, the terminal surface 27 parallel and level of the long jack 12 tail end of piece formula and second ladder, the short jack 13 afterbody of piece formula and first step terminal surface 25 parallel and level to contact afterbody welding face can stagger by layer, can realize that porous position connector contact tail end layering welds, improves the density of arranging of contact, has reduced the overall dimension of product greatly.

And stripping the cable, welding the cable to the welding knurling position at the tail end of the contact element, and then plastically packaging the cable into a whole by adopting a die, wherein the tail part of the plastic packaging shell extends to the outer skin of the cable to be matched with the outer skin of the cable. The welding spot at the tail part of the contact piece is protected by glue after welding, so that the welding spot is prevented from falling off when the plastic package is integrally formed, and the tail part can be better sealed.

In another embodiment of the invention, the contact tail part is crimped with the cable, and the crimped part is protected by glue.

The guide post on the insulating pressing plate 17 enters the groove on the socket insulator to form interference fit, so that the tail end of the sheet type jack is fixed on the insulating pressing plate, and the hole position at the tail part of the socket insulator is sealed. An annular groove 15 is formed in the socket plastic package shell 14, and can be matched with an annular convex rib 10 on a plug insulator on a plug end to form interference during opposite insertion, so that locking and sealing waterproof effects are achieved.

The socket insulator is provided with a second annular groove 16, and plastic package material flows into the annular groove during plastic package integrated molding, so that the bonding force between the plastic package shell and the socket insulator is improved.

In the embodiment of the invention, the sheet type jack adopts a bilateral cantilever beam structure, and the sheet type contact pin forms bilateral contact when inserted, so that the transmission of current signals is realized.

In the present embodiment, axially extending keyways 18 are provided on the outer periphery of the receptacle insulator and corresponding guide keys are provided in the plug insulator.

The piece type contact pin and the piece type jack are both in a local electroplating mode, gold is plated on a contact part, nickel is plated on a middle part, and tin is plated at a connection part of a tail part and a cable, so that the cost is greatly reduced while the performance is ensured.

In the embodiment of the invention, the tail parts of the plug and the socket are provided with anti-skid convex ribs 26 so as to facilitate the mutual insertion of the plug and the socket. The plug and socket insulators are provided with different colors according to different core numbers so as to be convenient for quickly distinguishing products with different core numbers.

The large chamfer is arranged at the annular convex rib of the plug insulator, the chamfer with gentle transition is also arranged at the opposite insertion face of the socket plastic package shell of the socket, and the smooth opposite insertion can be realized when the chamfer and the opposite insertion are opposite inserted.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a chip type signal electric connector, includes plug and the socket of front end butt joint, its characterized in that: wherein, the insulator of the plug and the socket is at least provided with a layer of signal hole site which extends along the axial direction and is used for assembling the sheet type pin/sheet type jack;

the tail part of the socket insulator is connected with an insulating pressing plate for fixing and sealing the tail part of the sheet type jack extending out of the insulator;

the tail parts of the plug insulator and the socket insulating pressing plate are in a step shape, and the tail parts of the sheet type contact pins and the sheet type jack which are arranged in a layered mode are located on the corresponding step surfaces and are provided with exposed cable connecting parts;

and the tail part of the plug insulator and the outer side of the socket insulator are both injection-molded with a plastic package shell, and the rear end of the plastic package shell extends to the rear of the contact and is matched with the sheath of the cable connected with the tail part of the contact.

2. The electrical chip signal connector of claim 1, wherein: wherein the tail end of the insulator is in a bidirectional step shape.

3. The electrical chip signal connector of claim 2, wherein: the plug insulator and the socket insulator are respectively provided with an annular groove for plastic package material to flow into when plastic package is integrally formed so as to improve the bonding force between the plastic package shell and the insulator.

4. The electrical chip signal connector of claim 2, wherein: the plug insulator outer peripheral surface on be equipped with cyclic annular protruding muscle, be equipped with in the socket plastic envelope shell body and realize locking and waterproof annular groove of sealed with this cyclic annular protruding muscle interference fit.

5. The electrical chip signal connector of claim 2, wherein: the insulating pressing plate and the socket insulator are fixed through the matching of the lug boss and the groove on the connecting surface of the insulating pressing plate and the socket insulator.

6. The electrical chip signal connector of claim 2, wherein: the chip contact piece is connected with the cable and then protected by glue, so that the aims of preventing the connection point from falling off and enhancing tail sealing during plastic package integrated forming are fulfilled.

7. The electrical chip signal connector of claim 2, wherein: the sheet type jack adopts a double-side cantilever beam structure which forms double-side contact when being inserted into the sheet type contact pin to realize stable signal transmission.

8. The electrical chip signal connector of claim 1, wherein: barbs are arranged on two sides of the sheet type jack and two sides of the sheet type contact pin, and welding knurls are arranged at the tail parts of the sheet type jack and the sheet type contact pin; and two sides of the sheet type jack are provided with double-layer barbs.

9. The electrical chip signal connector of claim 1, wherein: the chip type contact pin and the chip type jack are both in a local electroplating mode, the contact part is plated with gold, the middle part is plated with nickel, and the tail connecting part is plated with tin.

10. The electrical chip signal connector of claim 1, wherein: wherein the plug and receptacle insulators have colors for identifying the number of product cores.