Connector

Abstract

The invention relates to a connector, comprising: a terminal assembly comprising an insulating body, a plurality of signal terminals fixed with the insulating body, and grounding terminals located among the plurality of signal terminals; the insulation body comprises a first insulation part, a second insulation part and an outer wrapping insulation part covering the first insulation part and the second insulation part. The signal terminals comprise an upper row of terminals and a lower row of terminals, the upper row of terminals are arranged along the first insulating part, and the lower row of terminals are arranged along the second insulating part; the grounding terminal is arranged between the first insulating part and the second insulating part, the upper row of terminals are provided with upper contact pieces, the lower row of terminals are provided with lower contact pieces, and the upper contact pieces and the lower contact pieces are both in contact connection with the grounding terminal; the metal shell is encircled by a metal wall to form a ring shape, is hollow, is provided with openings at two ends and is annularly arranged at the periphery of the insulating body; the grounding terminal separates the upper row of terminals and the lower row of terminals, crosstalk is effectively restrained, the upper contact piece and the lower contact piece are elastically connected with the grounding terminal in a pressing mode, a low-impedance grounding path is ensured, and high-frequency signal transmission quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of connectors, and in particular to a connector. Background Art

[0002] With the vigorous development of 5G and artificial intelligence technologies, digital signal transmission equipment is ushering in a new wave of upgrades. As a key transmission medium, the technical specifications and functional requirements of electrical connectors are also evolving. Take the new generation of DP interface as an example. This high-performance digital video interface not only supports 8K ultra-high-definition video transmission, but also can simultaneously carry multi-channel audio, high-speed USB data and power supply, which perfectly meets the stringent requirements of smart display terminals for high-bandwidth and multi-function interfaces.

[0003] Chinese patent CN119050709A discloses a socket connector, which includes an insulating body and a plurality of signal terminals fixed to the insulating body, wherein the plurality of signal terminals are divided into an upper row of terminals and a lower row of terminals, wherein the upper row of terminals and the lower row of terminals are respectively fixed in a first insulating member and a second insulating member, and then the positions of the first insulating member and the second insulating member are fixed by an external insulating member to achieve overall structural stability. However, in the DP connector, the spacing between the upper row of terminals and the lower row of terminals in the structure is small, which may cause crosstalk, impedance mismatch and signal integrity problems.

[0004] Therefore, it is necessary to develop a connector to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a connector with good shielding effect.

[0006] To achieve the above object, the present invention provides the following technical solution: a connector, comprising: A terminal assembly, comprising an insulating body, a plurality of signal terminals fixed to the insulating body, and a ground terminal located between the plurality of signal terminals; The insulating body comprises a first insulating member, a second insulating member and an outer insulating member covering the first insulating member and the second insulating member; The signal terminals include an upper row of terminals and a lower row of terminals, the upper row of terminals are arranged along the first insulating member, and the lower row of terminals are arranged along the second insulating member; The grounding terminal is arranged between the first insulating member and the second insulating member, the upper row of terminals has an upper contact piece, the lower row of terminals has a lower contact piece, and both the upper contact piece and the lower contact piece are in contact with and connected to the grounding terminal; The metal shell is surrounded by a metal wall in a ring shape and is hollow in the middle and open at both ends, and is arranged around the outer periphery of the insulating body.

[0007] Further, an upper window is formed in the upper row of terminals, and the upper window penetrates the upper and lower surfaces of the upper row of terminals. One end of the upper contact piece is fixedly connected to the inner wall of the upper window, and the other end extends out of the upper window and extends towards the grounding terminal and contacts the grounding terminal.

[0008] Further, a lower window is formed in the lower row of terminals, and the lower window penetrates the upper and lower surfaces of the lower row of terminals. One end of the lower contact piece is fixedly connected to the inner wall of the lower window, and the other end extends out of the lower window and extends towards the grounding terminal and contacts the grounding terminal.

[0009] Further, the first insulating member has a first base portion, the second insulating member has a second base portion, and both the first base portion and the second base portion have clearance areas penetrating their upper and lower surfaces. The upper contact piece and the lower contact piece are respectively exposed in the clearance areas.

[0010] Further, the upper contact piece and the lower contact piece are arranged oppositely, and the outer insulating member covers the upper window and the lower window and wraps the upper contact piece and the lower contact piece.

[0011] Further, a first front tongue plate is formed at the front end of the first base portion. The first front tongue plate has a plurality of communication grooves formed by extending from the front end opening along the lower surface towards the rear end. A second front tongue plate is formed at the front end of the second base portion. The second front tongue plate has a plurality of communication grooves formed by extending from the front end opening along the upper surface towards the rear end. The grounding terminal is located between the communication grooves of the first front tongue plate and the communication grooves of the second front tongue plate.

[0012] Further, the outer insulating member fills the gap between the first insulating member and the second insulating member, covers the communication grooves, and wraps the grounding terminal.

[0013] Further, a through hole penetrating the upper and lower surfaces is formed at the front end of the grounding terminal, and the through hole corresponds to the communication groove.

[0014] Further, the first insulating member has positioning posts, and the second insulating member has positioning holes. The positioning posts penetrate the grounding terminal and then extend into the positioning holes.

[0015] Further, the grounding terminal is in a sheet shape and separates the upper row of terminals and the lower row of terminals.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is a connector with good shielding effect. The grounding terminal separates the upper row of terminals and the lower row of terminals, effectively suppressing crosstalk. The upper contact piece of the upper row of terminals and the lower contact piece of the lower row of terminals are elastically pressed against the grounding terminal to ensure a low-impedance grounding path and improve the high-frequency signal transmission quality. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic three-dimensional structure diagram of a connector of the present invention; Figure 2 For Figure 1 It is an exploded structure diagram of the connector shown; Figure 3 For Figure 1 It is an exploded structure diagram of the terminal assembly of the connector shown; Figure 4 For Figure 1 It is a partial exploded structure diagram of the terminal assembly of the connector shown; Figure 5 For Figure 1 It is a structure diagram of the first insulating member and the second insulating member of the connector shown; Figure 6 For Figure 1 It is a cross-sectional view of the connector shown. Detailed Description of the Embodiments

[0019] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following, in conjunction with the drawings and preferred embodiments, will describe in detail the specific embodiments, structures, features, and effects of the connector proposed according to the present invention. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0021] The following will specifically describe the specific solution of the connector provided by the present invention in conjunction with the drawings.

[0022] Please refer to Figures 1 to 6 , the present invention is a connector, which includes a terminal assembly 1 and a metal housing 2 surrounding the periphery of the terminal assembly 1. The metal housing 2 and the terminal assembly 1 jointly define an insertion space opening forward for docking with a connector (not shown).

[0023] Please refer to Figures 1 to 4, the terminal assembly 1 includes an insulating body 11, a plurality of signal terminals 12 and a grounding terminal 13 fixed within the insulating body 11. The insulating body 11 forms a base portion 111 and a tongue plate 112 extending forward from the front end surface of the base portion 111. The metal shell 2 is disposed around the periphery of the base portion 111. Specifically, the insulating body 11 includes a first insulating member 3, a second insulating member 4 and an outer insulating member 5. The signal terminals 12 include upper row terminals 121 and lower row terminals 122. The upper row terminals 121 are arranged along the first insulating member 3 and integrally formed with the first insulating member 3. The lower row terminals 122 are arranged along the second insulating member 4 and integrally formed with the second insulating member 4.

[0024] Please refer to Figure 4 , the first insulating member 3 includes a first base portion 31, a first front tongue plate 32 extending forward from the front end surface of the first base portion 31, and a first rear tongue plate 33 extending backward from the rear end surface of the first base portion 31; the second insulating member 4 includes a second base portion 41, a second front tongue plate 42 extending forward from the front end surface of the second base portion 41, and a second rear tongue plate 43 extending backward from the rear end surface of the second base portion 41. The first base portion 31 and the second base portion 41 are correspondingly arranged. The first front tongue plate 32 and the second front tongue plate 42 are correspondingly arranged. The first rear tongue plate 33 and the second rear tongue plate 43 are correspondingly arranged.

[0025] Both the first base portion 31 and the second base portion 41 have clearance areas 113 penetrating their upper and lower surfaces. The upper row terminals 121 and the lower row terminals 122 are respectively exposed in the clearance areas 113. On both sides of the first base portion 31, positioning posts 311 extending vertically from the lower surface towards the second base portion 41 are formed. On both sides of the second base portion 41, positioning holes 411 penetrating its upper and lower surfaces are formed. The positioning posts 311 and the positioning holes 411 correspond to each other, and the positioning posts 311 can extend into the positioning holes 411 and be snap-connected therewith, so that the first insulating member 3 and the second insulating member 4 can be pre-assembled and positioned before integrally injection molding the outer insulating member 5.

[0026] Please refer to Figure 5 , the first front tongue plate 32 has a plurality of first implant grooves 341 extending from the front end opening along the upper surface towards the rear end. The second front tongue plate 42 has a plurality of first implant grooves 341 extending from the front end opening along the lower surface towards the rear end. The first rear tongue plate 33 and the second rear tongue plate 43 have a plurality of second implant grooves 342 extending from the rear end opening towards the front end. The plurality of first implant grooves 341 and the plurality of second implant grooves 342 correspond to and communicate with each other one by one. The signal terminals 12 are located in the first implant grooves 341 and the second implant grooves 342.

[0027] The first front tongue plate 32 further has a plurality of communication grooves 323 formed by extending backward from the front-end opening along the lower surface, and the second front tongue plate 42 further has a plurality of communication grooves 323 formed by extending backward from the front-end opening along the upper surface. The communication grooves 323 of the first front tongue plate 32 are arranged opposite to the communication grooves 323 of the second front tongue plate 42.

[0028] The first front tongue plate 32 and the second front tongue plate 42 have a support portion 343 formed by extending forward from the front-end surface. Preferably, the support portion 343 is formed by extending forward from the front-end surface of the first implantation groove 341. The upper row of terminals 121 and the lower row of terminals 122 are respectively laid on the surface of the support portion 343.

[0029] The first rear tongue plate 33 and the second rear tongue plate 43 are respectively perpendicular to the first base 31 and the second base 41.

[0030] The ground terminal 13 is arranged between the first insulating member 3 and the second insulating member 4. Specifically, the ground terminal 13 is in a sheet shape and separates the upper row of terminals 121 and the lower row of terminals 122.

[0031] Please refer to Figures 1 to 3 , the outer insulating member 5 is fixedly combined with the first insulating member 3 and the second insulating member 4 by integral molding, covering other regions of the front-end faces of the first base 31 and the second base 41 except for the first front tongue plate 32 and the second front tongue plate 42 and the rear-end faces of the first rear tongue plate 33 and the second rear tongue plate 43, and also covering the left and right side faces and the front-end face of the first front tongue plate 32 and the second front tongue plate 42, and all regions of the first rear tongue plate 33 and the second rear tongue plate 43 except for the end faces. Preferably, the outer insulating member 5 also fills the gap between the first insulating member 3 and the second insulating member 4, that is, covers the communication grooves 323, fixes the ground terminal 13 located between the first insulating member 3 and the second insulating member 4, and the outer insulating member 5 can enhance the bonding force between the first insulating member 3 and the second insulating member 4 and their ground terminal 13.

[0032] Preferably, the upper and lower surfaces of the position where the outer insulating member 5 covers the first front tongue plate 32 and the second front tongue plate 42 have protrusions 51. The protrusions 51 extend from the front-end face to the rear-end face of the outer insulating member 5 and are in abutting contact with the front-end face of the signal terminal 12.

[0033] Please refer to Figure 6, in this application, the signal terminal 12 can actually be a DP (Display Port) socket connector, with twenty signal terminals 12 provided, namely ten upper row terminals 121 and ten lower row terminals 122. Among them, the upper row terminal 121 includes a first fixed section 1211 fixed to the first base 31, a first contact section 1212 extending forward from the first fixed section 1211 and fixed within the first front tongue plate 32, and a first docking section 1213 extending backward from the first fixed section 1211 and fixed within the first rear tongue plate 33; the lower row terminal 122 includes a second fixed section 1221 fixed to the second base 41, a second contact section 1222 extending forward from the second fixed section 1221 and fixed within the second front tongue plate 42, and a second docking section 1223 extending backward from the second fixed section 1221 and fixed within the second rear tongue plate 43.

[0034] Please refer to Figure 4 and Figure 6 , the ground terminal 13 is located between the first base 31 and the second base 41, between the first front tongue plate 32 and the second front tongue plate 42, and between the first rear tongue plate 33 and the second rear tongue plate 43. Specifically, the upper and lower surfaces of the ground terminal 13 are attached to the lower surface of the first base 31 and the upper surface of the second base 41, the positioning post 311 penetrates through the ground terminal 13 and then extends into the positioning hole 411, the front end of the ground terminal 13 is attached to the lower surface of the first front tongue plate 32 and the upper surface of the second front tongue plate 42, the front end of the ground terminal 13 has a through hole 131 penetrating its upper and lower surfaces, the through hole 131 corresponds to the communication groove 323 of the first front tongue plate 32 and the communication groove 323 of the second front tongue plate 42, and the outer insulating member 5 covers the through hole 131 to enhance the bonding force between the outer insulating member 5 and the ground terminal 13.

[0035] Please refer to Figure 6 , the upper row terminal 121 is provided with an upper window 1214, and the upper window 1214 penetrates the upper and lower surfaces of the upper row terminal 121. Specifically, the upper row terminal 121 provided with the upper window 1214 is exposed in the clearance area 113, an upper contact piece 1215 is arranged in the upper window 1214, one end of the upper contact piece 1215 is fixedly connected to the inner wall of the upper window 1214, and the other end extends out of the upper window 1214 and extends towards the ground terminal 13 and contacts the ground terminal 13.

[0036] The lower row terminal 122 is provided with a lower window 1224, and the lower window 1224 penetrates the upper and lower surfaces of the lower row terminal 122. Specifically, the lower row terminal 122 provided with the lower window 1224 is exposed in the clearance area 113, a lower contact piece 1225 is arranged in the lower window 1224, one end of the lower contact piece 1225 is fixedly connected to the inner wall of the lower window 1224, and the other end extends out of the lower window 1224 and extends towards the ground terminal 13 and contacts the ground terminal 13.

[0037] The upper contact piece 1215 and the lower contact piece 1225 are oppositely arranged. When the outer insulating member 5 covers them, it enters the upper window 1214 and the lower window 1224 to wrap the upper contact piece 1215 and the lower contact piece 1225.

[0038] The outer insulating member 5 has a boss 52 formed by protruding outward from the surface, and a stop surface 53 is formed on the side surface of the boss 52.

[0039] Please refer to Figure 2 , the metal housing 2 is surrounded by a metal wall 21 in a ring shape and forms a hollow accommodating cavity 20 with openings at both ends. The terminal assembly 1 is inserted forward from the rear end of the metal housing 2 and assembled into the accommodating cavity 20. Specifically, the metal wall 21 includes a top plate 211 and a bottom plate 212 that are spaced apart and correspondingly arranged in the up and down directions, and two side plates 213 that integrally connect the left and right end edges of the top plate 211 and the bottom plate 212 respectively. The rear end edges of the top plate 211, the bottom plate 212 and the side plates 213 define a limiting portion 214. After the terminal assembly 1 is inserted forward from the rear end of the metal housing 2 and assembled into the accommodating cavity 20, the limiting portion 214 of the metal wall 21 abuts against the stop surface 53.

[0040] The top plate 211, the bottom plate 212 and the side plates 213 all have elastic pieces 215, and the elastic pieces 215 extend obliquely into the accommodating cavity 20.

[0041] The present invention is a connector, which has the characteristics of good shielding effect. The grounding terminal separates the upper row of terminals and the lower row of terminals, effectively suppressing crosstalk. The upper contact piece of the upper row of terminals and the lower contact piece of the lower row of terminals are elastically pressed against the grounding terminal to ensure a low-impedance grounding path and improve the transmission quality of high-frequency signals.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connector, characterized in that, Comprising: A terminal assembly (1), including an insulating body (11), a plurality of signal terminals (12) fixed to the insulating body (11), and a ground terminal (13) located between the plurality of signal terminals (12); The insulating body (11) includes a first insulating member (3), a second insulating member (4), and an outer insulating member (5) covering the first insulating member (3) and the second insulating member (4); The signal terminals (12) include an upper row of terminals (121) and a lower row of terminals (122). The upper row of terminals (121) is arranged along the first insulating member (3), and the lower row of terminals (122) is arranged along the second insulating member (4); The ground terminal (13) is provided between the first insulating member (3) and the second insulating member (4). The upper row of terminals (121) has an upper contact piece (1215), and the lower row of terminals (122) has a lower contact piece (1225). The upper contact piece (1215) and the lower contact piece (1225) are both in contact connection with the ground terminal (13); A metal shell (2), surrounded by a metal wall (21) to form a ring shape with a hollow and both ends open, and is arranged around the insulating body (11).

2. The connector according to claim 1, characterized in that: The upper row of terminals (121) is provided with an upper window (1214). The upper window (1214) penetrates the upper and lower surfaces of the upper row of terminals (121). One end of the upper contact piece (1215) is fixedly connected to the inner wall of the upper window (1214), and the other end extends out of the upper window (1214) and extends towards the ground terminal (13) to contact the ground terminal (13).

3. The connector according to claim 2, characterized in that: The lower row of terminals (122) is provided with a lower window (1224). The lower window (1224) penetrates the upper and lower surfaces of the lower row of terminals (122). One end of the lower contact piece (1225) is fixedly connected to the inner wall of the lower window (1224), and the other end extends out of the lower window (1224) and extends towards the ground terminal (13) to contact the ground terminal (13).

4. The connector according to claim 1, wherein: The first insulating member (3) has a first base (31), and the second insulating member (4) has a second base (41). Both the first base (31) and the second base (41) have clearance areas (113) penetrating their upper and lower surfaces. The upper contact piece (1215) and the lower contact piece (1225) are respectively exposed in the clearance areas (113).

5. The connector according to claim 3, wherein: The upper contact piece (1215) and the lower contact piece (1225) are arranged oppositely. The outer insulating member (5) covers the upper window (1214) and the lower window (1224), and wraps the upper contact piece (1215) and the lower contact piece (1225).

6. The connector according to claim 4, characterized in that: A first front tongue plate (32) is formed at the front end of the first base portion (31). The first front tongue plate (32) has a plurality of communication grooves (323) formed by extending backward from the front end opening along the lower surface. A second front tongue plate (42) is formed at the front end of the second base portion (41). The second front tongue plate (42) has a plurality of communication grooves (323) formed by extending backward from the front end opening along the upper surface. The grounding terminal (13) is located between the communication grooves (323) of the first front tongue plate (32) and the communication grooves (323) of the second front tongue plate (42).

7. The connector according to claim 6, wherein: The outer insulating member 5 fills the gap between the first insulating member (3) and the second insulating member (4), covers the communication grooves (323), and wraps the grounding terminal (13).

8. The connector according to claim 6, characterized in that: The front end of the grounding terminal (13) has a through hole (131) penetrating its upper and lower surfaces, and the through hole (131) corresponds to the communication groove (323).

9. The connector according to claim 1, characterized in that: The first insulating member (3) has a positioning post (311), the second insulating member (4) has a positioning hole (411), and the positioning post (311) penetrates through the grounding terminal (13) and then extends into the positioning hole (411).

10. The connector according to claim 1, wherein: The grounding terminal (13) is in a sheet shape and separates the upper row of terminals (121) and the lower row of terminals (122).

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