CN210350162U

CN210350162U - Electrical connector

Info

Publication number: CN210350162U
Application number: CN201921494812.0U
Authority: CN
Inventors: 陈宏基; 刘琨; 黄斌
Original assignee: Dongguan Xuntao Electronic Co Ltd
Current assignee: Dongguan Xuntao Electronic Co Ltd
Priority date: 2019-09-07
Filing date: 2019-09-07
Publication date: 2020-04-17
Anticipated expiration: 2029-09-07

Abstract

An electric connector comprises an insulating body and a terminal module arranged on the insulating body; the terminal module comprises a first terminal unit, a second terminal unit and conductive plastic clamped between the first terminal unit and the second terminal unit, wherein the first terminal unit comprises a first insulator and a plurality of first terminals fixed on the first insulator; the second terminal unit comprises a second insulator and a plurality of second terminals fixed on the second insulator, and is characterized in that: the first insulator is provided with a first isolation portion for isolating the first terminals from the conductive plastic, and the second insulator is provided with a second isolation portion for isolating the second terminals from the conductive plastic. So set up, protected first, second terminal, avoided external force to first, second terminal to produce the destruction.

Description

Electrical connector

Technical Field

The utility model relates to an electric connector can be applied to high-speed connector technical field.

Background

Conventional connectors generally include a conductive plastic and a terminal module mounted on the conductive plastic. In one embodiment, the terminal module comprises an insulating block and an upper row of terminals and a lower row of terminals embedded and molded on the insulating block, wherein the grounding terminals are exposed out of the insulating block and are electrically contacted with or not contacted with the conductive plastic; however, the structure of this design is prone to anomalies that occur during use or production. On the other hand, the combination of the conductive plastic and the terminal module is usually only to place the conductive plastic between the terminal modules and to sleeve the terminal module and the conductive plastic with a housing without fixing structures such as a buckle. Therefore, it is a technical problem for those skilled in the art to stably and reliably mount the terminal module on the conductive plastic without damaging the conductive terminals.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an easily install first terminal unit and second terminal unit on insulator and do not produce the electric connector that destroys first, second terminal.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric connector comprises an insulating body and a terminal module arranged on the insulating body; the terminal module comprises a first terminal unit, a second terminal unit and conductive plastic clamped between the first terminal unit and the second terminal unit, wherein the first terminal unit comprises a first insulator and a plurality of first terminals fixed on the first insulator; the second terminal unit comprises a second insulator and a plurality of second terminals fixed on the second insulator, the first insulator is provided with a first isolation part for isolating the first terminals from the conductive plastic, and the second insulator is provided with a second isolation part for isolating the second terminals from the conductive plastic.

As the utility model discloses further modified technical scheme, electrically conductive plastic is equipped with first block arm, first insulator and the second insulator is equipped with second block arm and third block arm respectively, second block arm reaches third block arm divide and first block arm joint each other.

As a further improved technical scheme of the utility model, electrically conductive plastic is equipped with a plurality of fins that are located its upper and lower surface, the first insulator with the internal surface of second insulator be equipped with respectively with fin matched with recess.

As a further improved technical solution of the present invention, the first terminal includes a plurality of signal terminals and a plurality of ground terminals, wherein two adjacent signal terminals and ground terminals form a group;

the second terminals comprise a plurality of signal terminals and a plurality of grounding terminals, wherein two adjacent signal terminals and the grounding terminals form a group;

the groove is located at a position corresponding to a position of the ground terminal among the first terminal and the second terminal.

As a further improved technical solution of the present invention, the distance between the ground terminal located in the first isolation portion and the protruding rib is 0.01 mm to 0.25 mm.

As a further improved technical solution of the present invention, the first insulator is provided with a plurality of first protrusions protruding toward the second insulator, and the second insulator is provided with a plurality of second protrusions protruding toward the first insulator; the conductive plastic is provided with a plurality of accommodating grooves for accommodating the first bulges and the second bulges.

As a further improved technical solution of the present invention, the accommodating groove of the conductive plastic is provided with a first groove wall adjacent to the first terminal unit and a second groove wall adjacent to the second terminal unit; the first protrusion is provided with a first protruding block extending along the first groove wall, the second protrusion is provided with a second protruding block extending along the second groove wall, the first protruding block and the second protruding block are arranged between the first groove wall and the second groove wall, and the plurality of first protrusions and the plurality of second protrusions are arranged at intervals.

As a further improved technical scheme of the utility model, insulator includes roof, diapire and connection the roof with two lateral walls of diapire, the roof with first insulator is equipped with first draw-in groove and the first fixture block that mutual card was held, the diapire with second insulator is equipped with second draw-in groove and the second fixture block that mutual card was held.

As a further improved technical solution of the present invention, the first clamping groove is disposed on an inner surface of the top wall, the first clamping block is disposed on the first insulator, and the first clamping block is provided with a first guiding inclined plane for guiding the first insulator to be inserted; the second clamping groove is formed in the inner surface of the bottom wall, the second clamping block is arranged on the second insulator, and the second clamping block is provided with a second guide inclined surface used for guiding the second insulator to be inserted.

As a further improved technical solution of the present invention, the inner surface of the top wall is provided with a plurality of first positioning protrusions, the first insulator is provided with a plurality of first positioning grooves matched with the first positioning protrusions, the first positioning protrusions are provided with first inclined planes, and the first positioning grooves are provided with second inclined planes matched with the first inclined planes; the inner surface of diapire is equipped with a plurality of second location archs, the second insulator be equipped with a plurality of second constant head tank of second location arch matched with, the second location arch is equipped with the third inclined plane, the second constant head tank be equipped with third inclined plane matched with fourth inclined plane.

Compared with the prior art, the utility model has the advantages that the first terminal unit and the second terminal unit are easily installed on the insulating body through the conductive plastic clamped between the first terminal unit and the second terminal unit; in addition, the conductive plastic is not directly contacted with the first terminal and the second terminal through the first isolation part and the second isolation part, so that the first terminal and the second terminal are protected, and the first terminal and the second terminal are prevented from being damaged by external force.

Drawings

Fig. 1 is a schematic perspective view of the electrical connector of the present invention.

Fig. 2 is a perspective view of fig. 1 from another angle.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a rear view of fig. 1.

Fig. 5 is a partially exploded perspective view of fig. 1.

Fig. 6 is a partial exploded perspective view of fig. 5 at another angle.

Fig. 7 is a front view of the terminal module, the second terminal module and the conductive plastic of fig. 6 assembled together.

Fig. 8 is a side view of fig. 7.

Fig. 9 is a schematic sectional view taken along line a-a in fig. 3.

Fig. 10 is a further exploded perspective view of fig. 6 with the conductive plastic separated.

Fig. 11 is a further exploded perspective view of fig. 10, with the terminal module separated from the second terminal module.

Fig. 12 is an exploded perspective view of fig. 11 from another angle.

Fig. 13 is a top view of the second terminal module of fig. 12.

Fig. 14 is a perspective view of the conductive plastic.

Fig. 15 is a front view of fig. 14.

Detailed Description

Referring to fig. 1 to 15, the present invention discloses an electrical connector 100 for mating with a mating connector (not shown) to transmit signals (such as high speed signals). Referring to fig. 5, the electrical connector 100 includes an insulative housing 1, a terminal module 2 mounted on the insulative housing 1, and a shielding shell 3 shielding the insulative housing 1. In one embodiment of the present invention, the shielding shell 3 is made of a metal material.

Referring to fig. 5 and 6, the insulative housing 1 includes a mating surface 14 and a mounting surface 15 for mounting the electrical connector 100 on the circuit board, wherein the mating surface 14 has a slot 141 for mating with the mating connector, and the mounting surface 15 has a mounting slot 151 for receiving the terminal module 2.

Structurally, the insulating body 1 comprises a top wall 11, a bottom wall 12 and two side walls 13 connecting the top wall 11 and the bottom wall 12. The two side walls 13 are respectively provided with a slot 131. The insertion groove 141 is defined by the top wall 11, the bottom wall 12 and the two side walls 13. The middle of the top wall 11 is provided with a groove 111 for matching with the docking connector. In the illustrated embodiment of the present invention, the groove 111 does not penetrate the top wall 11 downward, i.e., the groove 111 is not communicated with the slot 141. A plurality of first slots 112 are formed in the top wall 11 near the mounting surface 15, and the first slots 112 are located on the inner surface of the top wall 11. Referring to fig. 5, in the illustrated embodiment of the present invention, the first engaging groove 112 extends through the top wall 11. Referring to fig. 6, the inner surface of the top wall 11 is further provided with a plurality of first positioning protrusions 113 for matching with the terminal module 2, and the first positioning protrusions 113 are provided with first inclined surfaces 114.

In the illustrated embodiment of the present invention, the bottom wall 12 is provided with a snap projection 121 for engaging with the shielding shell 3. The cross section of the snap lug 121 is T-shaped. A plurality of second locking grooves 122 are formed in the bottom wall 12 near the mounting surface 15, and the second locking grooves 122 are located on the inner surface of the bottom wall 12. Referring to fig. 6, in the illustrated embodiment of the present invention, the second locking groove 122 extends through the bottom wall 12. Referring to fig. 12, the inner surface of the bottom wall 12 is further provided with a plurality of second positioning protrusions 123 for matching with the terminal module 2, and the second positioning protrusions 123 are provided with third inclined surfaces 124.

The shielding shell 3 is substantially shaped like a frame and is sleeved on the insulating body 1. The shielding case 3 includes an upper case 31 shielded on the top wall 11, a lower case 32 covered on the bottom wall 12, and two side cases 33 connecting the upper case 31 and the lower case 32 and partially covering the two side walls 13, respectively. In an embodiment of the present invention, the upper case 31, the lower case 32, and the side case 33 may be integrally formed.

Referring to fig. 1, 3 and 5, a locking space 30 for locking the mating connector is disposed between the upper shell 31 of the shielding shell 3 and the top wall 11 of the insulating housing 1. The upper case 31 is provided with a locking hole 311 connected to the locking space 30. Of course, the locking space 30 can also be used to achieve a preliminary positioning of the two when mating with the mating connector. The two side casings 33 are respectively provided with mounting feet 331 which pass through the slots 131 and are used for mounting to a circuit board. With such an arrangement, the slot 131 can limit the mounting leg 331 to prevent the mounting leg 331 from being deformed to be disadvantageous to be mounted on a circuit board.

Referring to fig. 5 and 6, in the illustrated embodiment of the present invention, the shielding shell 3 is formed by stamping a metal sheet, wherein the lower shell 32 includes a first shell portion 321 and a second shell portion 322, and the first shell portion 321 and the second shell portion 322 are fastened together by a dovetail groove 323. The lower shell 32 is provided with a snap notch 324 which is matched with the snap lug 121, so that the snap lug 121 can be installed and positioned with the lower shell 32 on one hand; on the other hand, the snap recesses 324 can also prevent the first housing portion 321 from being separated from the second housing portion 322.

The terminal module 2 includes a first terminal unit 21, a second terminal unit 22, and a conductive plastic 23 clamped between the first terminal unit 21 and the second terminal unit 22. In the embodiment of the present invention, the first terminal unit 21 and the second terminal unit 22 are symmetrically disposed on the upper and lower sides of the conductive plastic 23. Preferably, the first terminal unit 21 and the second terminal unit 22 may be made of the same component, and when assembling, the components are turned over by 180 degrees.

Referring to fig. 9, 12 and 13, the first terminal unit 21 has a first insulator 211 and a plurality of first terminals 212 fixed on the first insulator 211. In an embodiment of the present invention, the first terminal 212 is insert-molded on the first insulator 211. Structurally, the first terminal 212 includes a first fixing portion 2121 fixed to the first insulator 211, a first contact portion 2122 extending forward from the first fixing portion 2121, and a first welding portion 2123 bent and extending backward from the first fixing portion 2121. Functionally, the first terminal 212 includes a signal terminal (S) and a ground terminal (G), wherein two adjacent signal terminals (S) and ground terminals (G) form a group, and the first terminal 212 includes a plurality of groups of such signal terminals (S) and ground terminals (G).

Referring to fig. 5, 6, 9 and 12, the first insulator 211 has a first isolation portion 2111 for isolating the first terminals 212 from the conductive plastic 23. The first insulator 211 and the top wall 11 are provided with a first engaging groove 112 and a first engaging block 2112, which are engaged with each other. In the illustrated embodiment of the present invention, the first engaging groove 112 is located on the top wall 11 of the insulating housing 1, and the first engaging block 2112 is located on the top wall of the first insulating housing 211. Of course, in other embodiments, the first locking groove 112 may also be disposed on the first insulator 211, and the first locking block 2112 is disposed on the top wall 11 of the insulator 1, so as to achieve the purpose of locking the two. Preferably, the first latching block 2112 is provided with a first guide slope 2113 for guiding the insertion of the first insulator 211. In addition, a plurality of first positioning grooves 2114 matched with the first positioning protrusions 113 are further formed in the top wall of the first insulator 211, and second inclined surfaces 2115 matched with the first inclined surfaces 114 are formed in the first positioning grooves 2114.

Referring to fig. 9, 12 and 13, the second terminal unit 22 has a second insulator 221 and a plurality of second terminals 222 fixed on the second insulator 221. In one embodiment of the present invention, the second terminal 222 is insert-molded on the second insulator 221. In terms of structure, the second terminal 222 includes a second fixing portion 2221 fixed to the second insulator 221, a second contact portion 2222 extending forward from the second fixing portion 2221, and a second welding portion 2223 bent and extending backward from the second fixing portion 2221. Functionally, the second terminals 222 include signal terminals (S) and ground terminals (G), wherein two adjacent signal terminals (S) and ground terminals (G) form a set, and the first terminals 212 include a plurality of sets of such signal terminals (S) and ground terminals (G).

Referring to fig. 3, the insulating housing 1 includes a first positioning groove 161 and a second positioning groove 162 located at two sides of the first terminal unit 21 and the second terminal unit 22, wherein the first positioning groove 161 and the second positioning groove 162 are respectively located at two sides of the slot 141 and are used for matching with the mating connector.

Referring to fig. 6, 9 and 12, the second insulator 221 is provided with a second isolation portion 2211 for isolating the second terminals 222 from the conductive plastic 23. The second insulator 221 and the bottom wall 12 are provided with a second locking groove 122 and a second locking block 2212, which are mutually locked. In the illustrated embodiment of the present invention, the second locking groove 122 is located on the bottom wall 12 of the insulating main body 1, and the second locking block 2212 is located on the bottom wall of the second insulating body 221. Of course, in other embodiments, the second locking groove 122 may be disposed on the second insulator 221, and the second locking block 2212 is disposed on the bottom wall 12 of the insulating main body 1, so as to achieve the purpose of locking the two. Preferably, the second fixture block 2212 is provided with a second guide slope 2213 for guiding the insertion of the second insulator 221. In addition, a plurality of second positioning grooves 2214 matched with the second positioning protrusions 123 are further disposed on the bottom wall of the second insulator 221, and the second positioning grooves 2214 are provided with fourth inclined surfaces 2215 matched with the third inclined surfaces 124.

Referring to fig. 8 to 15, the conductive plastic 23 has a plurality of ribs 231 on the upper and lower surfaces thereof, and the inner surfaces of the first insulator 211 and the second insulator 221 have grooves 24 respectively corresponding to the ribs 231. In addition, the conductive plastic 23, the first insulator 211 and the second insulator 221 are further provided with a plurality of engaging arms 25 which are engaged with each other to prevent the conductive plastic 23 from being withdrawn backwards after being inserted. In the illustrated embodiment of the present invention, the conductive plastic 23 is provided with a first engaging arm 232, the first insulator 211 and the second insulator 221 are respectively provided with a second engaging arm 213 and a third engaging arm 223, and the second engaging arm 213 and the third engaging arm 223 are respectively engaged with the first engaging arm 232. In the illustrated embodiment of the present invention, the conductive plastic 23 is separated from the first terminal 212 and the second terminal 222 by a layer of plastic (i.e., the first separating portion 2111 and the second separating portion 2211), and the rib 231 of the conductive plastic 23 does not directly contact with the first terminal 212 or the second terminal 222, so as to protect the terminals. Meanwhile, the first isolation portion 2111 and the second isolation portion 2211 serve as an intermediate medium for coupling the conductive plastic 23 and the corresponding first terminal 212 and second terminal 222. The ground terminal (G) of the first separator 2111 is spaced from the rib 231 by a distance of 0.01 mm to 0.25 mm, and the ground terminal (G) of the second separator 2211 is spaced from the rib 231 by a distance of 0.01 mm to 0.25 mm; this distance allows the ground terminal (G) to be electrically conductive with the conductive plastic 23. Referring to fig. 13, the position of the groove 24 corresponds to the position of the ground terminal (G) in the first terminal 212 and the second terminal 222.

Referring to fig. 7, 12 and 14, the first insulator 211 is provided with a plurality of first protrusions 214 protruding toward the second insulator 221, and the second insulator 221 is provided with a plurality of second protrusions 224 protruding toward the first insulator 211; the conductive plastic 23 is provided with a plurality of receiving grooves 233 for receiving the plurality of first protrusions 214 and the plurality of second protrusions 224. In order to facilitate the first protrusion 214 and the second protrusion 224 to be installed in the corresponding receiving groove 233, the conductive plastic 23 is further provided with a chamfer 234 at the front end of the receiving groove 233. The receiving groove 233 may or may not penetrate the conductive plastic 23. Referring to fig. 11 and 14, in the embodiment of the present invention, the receiving groove 233 of the conductive plastic 23 is provided with a first groove wall 2331 adjacent to the first terminal unit 21 and a second groove wall 2332 adjacent to the second terminal unit 22; the first protrusion 214 is provided with a first protrusion 2141 extending along the first slot wall 2331, the second protrusion 224 is provided with a second protrusion 2241 extending along the second slot wall 2332, and the first protrusion 2141 and the second protrusion 2241 are disposed between the first slot wall 2331 and the second slot wall 2332. The first protrusions 214 and the second protrusions 224 are arranged at intervals and are arranged in a row along the left-right direction. In addition, the first insulator 211 and the second insulator 221 are further provided with ribs 215 protruding outward to press against the inner walls of the two sides of the mounting groove 151, so as to improve the friction force and improve the mounting reliability of the terminal module 2.

When the terminal module 2 is completely inserted into the mounting groove 151 from the rear to the front, the first latching block 2112 is latched to the first latching groove 112, and the second latching block 2212 is latched to the second latching groove 122, so as to prevent the terminal module 2 from being withdrawn backwards. At this time, the first contact portion 2122 and the second contact portion 2222 extend toward each other and each protrude into the slot 141 to be matched with the mating connector.

It should be noted that the terms "first", "second" and "third" used in the present invention are only used for distinguishing the names of the elements, and do not have any logical meaning.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical people in the related art, for example, the descriptions of the directions such as "front", "back", "left", "right", "up", "down", etc., although the present specification has described the present invention in detail with reference to the above embodiments, the ordinary skilled in the art should understand that the technical people in the related art can still modify or substitute the present invention, and all the technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electrical connector (100) comprising an insulative housing (1) and a terminal module (2) mounted on the insulative housing (1); the terminal module (2) comprises a first terminal unit (21), a second terminal unit (22) and conductive plastic (23) clamped between the first terminal unit (21) and the second terminal unit (22), wherein the first terminal unit (21) comprises a first insulator (211) and a plurality of first terminals (212) fixed on the first insulator (211); the second terminal unit (22) comprises a second insulator (221) and a plurality of second terminals (222) fixed to the second insulator (221), characterized in that: the first insulator (211) is provided with a first isolation portion (2111) for isolating the plurality of first terminals (212) from the conductive plastic (23), and the second insulator (221) is provided with a second isolation portion (2211) for isolating the plurality of second terminals (222) from the conductive plastic (23).

2. The electrical connector (100) of claim 1, wherein: conductive plastic (23) are equipped with first block arm (232), first insulator (211) and second insulator (221) are equipped with second block arm (213) and third block arm (223) respectively, second block arm (213) and third block arm (223) divide with first block arm (232) mutual joint.

3. The electrical connector (100) of claim 1, wherein: the conductive plastic (23) is provided with a plurality of convex ribs (231) positioned on the upper surface and the lower surface of the conductive plastic, and the inner surfaces of the first insulator (211) and the second insulator (221) are respectively provided with a groove (24) matched with the convex ribs (231).

4. The electrical connector (100) of claim 3, wherein:

the first terminal (212) comprises a plurality of signal terminals (S) and a plurality of ground terminals (G), wherein two adjacent signal terminals (S) and the ground terminals (G) form a group;

the second terminals (222) comprise a plurality of signal terminals (S) and a plurality of ground terminals (G), wherein two adjacent signal terminals (S) and the ground terminals (G) form a group;

the groove (24) is located at a position corresponding to the position of the ground terminal (G) in the first terminal (212) and the second terminal (222).

5. The electrical connector (100) of claim 4, wherein: the ground terminal (G) located at the first isolation portion (2111) and the rib (231) have a distance between 0.01 mm and 0.25 mm.

6. The electrical connector (100) of claim 1, wherein: the first insulator (211) is provided with a plurality of first protrusions (214) protruding toward the second insulator (221), and the second insulator (221) is provided with a plurality of second protrusions (224) protruding toward the first insulator (211); the conductive plastic (23) is provided with a plurality of accommodating grooves (233) for accommodating the plurality of first bulges (214) and the plurality of second bulges (224).

7. The electrical connector (100) of claim 6, wherein: the accommodating groove (233) of the conductive plastic (23) is provided with a first groove wall (2331) adjacent to the first terminal unit (21) and a second groove wall (2332) adjacent to the second terminal unit (22); the first protrusion (214) is provided with a first bump (2141) extending along the first slot wall (2331), the second protrusion (224) is provided with a second bump (2241) extending along the second slot wall (2332), the first bump (2141) and the second bump (2241) are arranged between the first slot wall (2331) and the second slot wall (2332), and the plurality of first protrusions (214) and the plurality of second protrusions (224) are arranged at intervals.

8. The electrical connector (100) of claim 1, wherein: the insulation body (1) comprises a top wall (11), a bottom wall (12) and two side walls (13) connected with the top wall (11) and the bottom wall (12), the top wall (11) and the first insulator (211) are provided with a first clamping groove (112) and a first clamping block (2112) which are mutually clamped, and the bottom wall (12) and the second insulator (221) are provided with a second clamping groove (122) and a second clamping block (2212) which are mutually clamped.

9. The electrical connector (100) of claim 8, wherein: the first clamping groove (112) is arranged on the inner surface of the top wall (11), the first clamping block (2112) is arranged on the first insulator (211), and the first clamping block (2112) is provided with a second clamping block (2212) for guiding the first insulator (211) to be inserted; the second locking groove (122) is disposed on the inner surface of the bottom wall (12), the second locking block (2212) is disposed on the second insulator (221), and the second locking block (2212) is provided with a second guiding inclined surface (2213) for guiding the second insulator (221) to be inserted.

10. The electrical connector (100) of claim 8, wherein: the inner surface of the top wall (11) is provided with a plurality of first positioning protrusions (113), the first insulator (211) is provided with a plurality of first positioning grooves (2114) matched with the first positioning protrusions (113), the first positioning protrusions (113) are provided with first inclined planes (114), and the first positioning grooves (2114) are provided with second inclined planes (2115) matched with the first inclined planes (114); the internal surface of diapire (12) is equipped with a plurality of second location arch (123), second insulator (221) be equipped with a plurality of second constant head tank (2214) of second location arch (123) matched with, second location arch (123) are equipped with third inclined plane (124), second constant head tank (2214) be equipped with third inclined plane (124) matched with fourth inclined plane (2215).