Electric connector

Abstract

An electric connector comprises two rows of conductive terminals which are longitudinally arranged and transversely opposite to each other, two insulating bodies which hold the two rows of conductive terminals to form two terminal modules, and a shell which is held outside the insulating bodies. Each row of conductive terminals comprises a holding part which is held on the insulating bodies, a contact part which is formed by extending upwards from the holding part, and a welding part which extends downwards from the holding part, each row of conductive terminals comprises a signal terminal and a grounding terminal, and the electric connector also comprises longitudinally extending metal plate bodies which are respectively held on the two insulating bodies. The grounding terminal in each row of conductive terminals is formed by integrally extending from the metal plate body, the metal plate body is located between the two rows of conductive terminals in the transverse direction, and the two metal plate bodies are welded to each other so that the two terminal modules can be fixed. The grounding terminals of each row of conductive terminals are connected in series through the metal plate body, the metal plate body is arranged between the two rows of conductive terminals, the high-frequency performance of the electric connector is good, and the metal plate bodies in the two terminal modules are welded with each other, so that the two terminal modules are fixed reliably.

Description

[Technical field]

[0001] The invention relates to an electric connector, in particular to an electric connector with high strength and good high frequency performance. [Background technology]

[0002] The prior art refers to Chinese invention number CN216289316U, which discloses an electrical connector, two rows of conductive terminals, two insulating bodies respectively holding the two rows of conductive terminals, and a shell held outside the insulating body, a conductive object is arranged between the two rows of conductive terminals, the conductive object is formed of conductive paint, conductive resin or conductive glue, and the conductive object contacts the grounding terminals in the two rows of conductive terminals to make all the grounding terminals connected, thereby improving high-frequency performance. However, in high-temperature conditions such as furnace welding, the insulating body of the electrical connector is easily warped by heat, and it is impossible to ensure that the conductive object and the grounding terminal remain conductive, and the warping of the insulating body by heat will also cause the contact portion of the conductive terminal to be offset, thereby failing to ensure reliable docking between the electrical connector and the docking connector.

[0003] Therefore, it is necessary to improve the existing electrical connector to meet the needs. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide an electrical connector with reliable structural strength and good high-frequency performance.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: an electrical connector, comprising two rows of conductive terminals arranged in a longitudinal direction and opposite to each other in a transverse direction perpendicular to the longitudinal direction, two insulating bodies respectively holding the two rows of conductive terminals to form two terminal modules, and a shell held outside the insulating bodies, each row of conductive terminals comprising a holding portion held in the insulating body, a contact portion extending upward from the holding portion, and a welding portion extending downward from the holding portion out of the insulating body, each row of conductive terminals comprising a signal terminal and a grounding terminal, the electrical connector further comprising a metal plate body extending in the longitudinal direction and respectively held in the two insulating bodies, the grounding terminal in each row of conductive terminals being formed by integrally extending from the metal plate body, the two metal plates being located between the two rows of conductive terminals in the transverse direction, and the two metal plates being welded and fixed to each other so that the two terminal modules are fixed to each other.

[0006] Furthermore, each insulating body is extended from both longitudinal sides of each metal plate body and extends laterally toward the other metal plate body to form a welding plate, and the welding plates of the two metal plates are welded to each other to fix the two terminal modules to each other.

[0007] Furthermore, each of the metal plates includes a base body and welding plates extending from upper and lower ends of both longitudinal sides of the base body and spaced apart from each other.

[0008] Furthermore, each row of conductive terminals and the metal plate are injection molded on the insulating body, and each row of conductive terminals extends upward from the retaining portion of the insulating body to form an elastic arm having the contact portion. The insulating body is retained at the lower end of the shell, and the upper end of the shell is provided with a docking cavity with a socket for accommodating the elastic arm.

[0009] Furthermore, the metal plate body is located on the inner side of the retaining portion of the signal terminal, the upper side of the metal plate body extends the insulating body upward to form an elastic arm of the grounding terminal, the lower side of the metal plate body extends the insulating body downward to form a welding portion of the grounding terminal, and the retaining portion of the grounding terminal is formed on the metal plate body.

[0010] Furthermore, in each row of conductive terminals, the retaining portion of the grounding terminal includes a vertical portion located inside the retaining portion of the signal terminal and an extension portion formed by bending and extending outward from upper and lower sides of the vertical portion, and the retaining portion of the grounding terminal is roughly in a "[" shape.

[0011] Furthermore, the mating surfaces of the two insulating bodies that abut against each other in the lateral direction are provided with mutually mating positioning columns and positioning holes, and in each terminal module, the metal plate is closer to the mating surface than the retaining portion of the signal terminal.

[0012] Furthermore, in each row of conductive terminals, two adjacent signal terminals form a differential terminal pair, the differential terminal pair and the ground terminals are arranged alternately, and the retaining portions of the signal terminals are exposed to the longitudinal outer side surface of the insulating body.

[0013] Furthermore, the longitudinal outer side surface of the insulating body protrudes between adjacent differential terminal pairs to form a separation rib.

[0014] Furthermore, the shell is made of insulating material, and the longitudinal outer side surface of the insulating body protrudes to form a plurality of protrusions, and the protrusions include interference protrusions that interfere with the inner wall surface of the shell and retaining protrusions that are buckled with retaining holes provided in the shell.

[0015] Compared with the prior art, the present invention has the following beneficial effects: in the electrical connector of the present invention, the grounding terminals of each row of conductive terminals are connected in series through a metal plate body, and the metal plate body is arranged between two rows of conductive terminals. The electrical connector has good high-frequency performance, and the metal plates in the two terminal modules are welded to each other, which can reliably suppress the heat-induced warping and deformation of the insulating body, thereby ensuring the reliability of the electrical connector.

Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional diagram of the electrical connector of the present invention.

[0017] Figure 2 yes Figure 1Another perspective of the stereogram.

[0018] Figure 3 This is a separation view of the electrical connector terminal module and the housing of the present invention.

[0019] Figure 4 It is a three-dimensional diagram of the two terminal modules of the present invention without being matched.

[0020] Figure 5 It is a three-dimensional exploded view of the terminal module of the present invention.

[0021] Figure 6 yes Figure 5 A three-dimensional view with the insulating body removed.

[0022] Figure 7 yes Figure 1 Section view along line AA.

[0023] Figure 8 yes Figure 1 Section view along line BB. [Specific implementation method]

[0024] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0025] See also Figures 1 to 8 As shown, the present invention discloses an electrical connector 100, comprising two rows of conductive terminals 1 arranged along the longitudinal direction and opposite to each other in a lateral direction perpendicular to the longitudinal direction, two insulating bodies 2 respectively holding the two rows of conductive terminals 1 to form two terminal modules 10, and a shell 3 held outside the insulating body 2.

[0026] Each row of conductive terminals 1 includes a signal terminal 10S and a ground terminal 10G. In each row of conductive terminals 1, two adjacent signal terminals 10S form a differential terminal pair 101, and the differential terminal pair 101 and the ground terminal 10G are arranged alternately. Each row of conductive terminals 1 includes a retaining portion 11 retained in the insulating body 2, a contact portion 12 extending upward from the retaining portion 11, and a welding portion 13 extending downward from the retaining portion 11 out of the insulating body 2. In the present invention, each row of conductive terminals 1 extends upward from the retaining portion 11 out of the insulating body 2 to form an elastic arm 14 having the contact portion 12.

[0027] The two insulating bodies 2 have mating surfaces 21 that are opposite to each other and abut against each other in the transverse direction. The mating surfaces 21 are provided with positioning columns 211 and positioning holes 212 that are mated with each other. The insulating bodies 2 are positioned by the positioning columns 211 and the positioning holes 212. Each of the insulating bodies 2 further holds a metal plate body 4 extending in the longitudinal direction. The grounding terminals 10G in each row of conductive terminals 1 are integrally extended from the metal plate body 4. The two metal plate bodies 4 are located between the two rows of conductive terminals 1 in the transverse direction. The metal plate body 4 is disposed between the two rows of conductive terminals 1 and connects several grounding terminals 10G in each row of conductive terminals 1 in an integral manner to be connected in series, thereby making the high-frequency performance of the electrical connector 100 better. In the present invention, the metal plates 4 held in the two insulating bodies 2 are welded and fixed to each other, so that the grounding terminals in the two rows of conductive terminals 1 are connected in series with each other, which not only further improves the high-frequency performance of the electrical connector 100, but also enables the two terminal modules 10 to be reliably fixed. In the present invention, each row of conductive terminals 1 and a metal plate body 4 are respectively injection molded on one of the insulating bodies 2. The longitudinal sides of each metal plate body 4 extend out of each of the insulating bodies 2 and extend laterally toward the other metal plate body 4 to form welding plates 41. The welding plates 41 of the two metal plate bodies 4 are welded to each other, so that the two terminal modules 10 are reliably fixed to each other. Specifically, each of the metal plate bodies 4 includes a base 40 and upper and lower welding plates 41 extending from the upper and lower ends of the longitudinal sides of the base 40 toward the other metal plate body 4. The transversely opposite end edges of the welding plates 41 of the two metal plate bodies 4 are welded and fixed to each other. In the present invention, the metal plates 4 respectively arranged in the two terminal modules 10 are welded to each other to form an annular metal body.

[0028] Specifically, in each row of conductive terminals 1, the metal plate 4 is located inside the retaining portion 11 of the signal terminal 10S and is spaced apart from the retaining portion 11 of the signal terminal 10S in the lateral direction, that is, the metal plate 4 is closer to the mating surface 21 than the retaining portion 11 of the signal terminal 10S. The upper side of the metal plate 4 extends upward from the insulating body 2 to form the elastic arm 14 of the ground terminal 10G, and the lower side of the metal plate 4 extends downward from the insulating body 2 to form the welding portion 13 of the ground terminal 10G. The retaining portion 11 of the grounding terminal 10G is formed on the base 40 of the metal plate body 4. The retaining portion 11 of the grounding terminal 10G includes a vertical portion 401 located on the inner side of the signal terminal 10S and an extension portion 402 formed by bending and extending from the upper and lower sides of the vertical portion 401 outward toward the retaining portion 11 close to the signal terminal 10S. The retaining portion 11 of the grounding terminal 10G composed of the vertical portion 401 and a pair of extension portions 402 is roughly in a "[" shape. The retaining portion 11 of the grounding terminal 10G with a "["-shaped structure can effectively suppress the warping and deformation of the insulating body 2 after being heated.

[0029] The shell 3 is made of insulating material, the insulating body 2 is fixed at the lower end of the shell 3, and the upper end of the shell 3 is provided with a docking cavity 31 for accommodating the elastic arm 14, and the docking cavity 3 penetrates upward through the top surface of the shell 3 to form a socket 30 for inserting a docking connector (not shown) into the docking cavity 31. The longitudinal outer side surface 22 of the insulating body 2 protrudes to form a plurality of protrusions 220, and the protrusions 220 include interference protrusions 2201 that interfere with the inner wall surface 32 of the shell 3 and retaining protrusions 2202 that are engaged with the retaining holes 33 provided in the shell 3. In each row of conductive terminals 1, the lateral outer surface 110 of the retaining portion 11 of the signal terminal 10S is exposed to the longitudinal outer side surface 22 of the insulating body, and the longitudinal outer side surface 22 of the insulating body 2 protrudes between adjacent differential terminal pairs 101 to form a partition rib 221. The lower ends of both longitudinal sides of the housing 3 protrude to form a protrusion 34. The protrusion 32 is provided with a through hole 341 penetrating from top to bottom. A board fixture 5 is installed in the through hole 341 from top to bottom to reliably install the electrical connector 100 on a circuit board (not shown).

[0030] In summary, in the electrical connector 100 of the present invention, the grounding terminals 10G of each row of conductive terminals 1 are connected in series through the metal plate 4, and the metal plate 4 is disposed between two rows of conductive terminals 1. The electrical connector 100 has good high-frequency performance, and the metal plates 4 in the two terminal modules 10 are welded to each other, which can reliably suppress the heat-induced warping and deformation of the insulating body 2, thereby ensuring the reliability of the electrical connector 100. It should be noted that the above is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereto. That is, all simple equivalent changes and modifications made in accordance with the claims of the present invention and the contents of the present invention specification should still fall within the scope of the present invention.

Claims

1. An electrical connector, comprising two rows of conductive terminals arranged in a longitudinal direction and opposite to each other in a transverse direction perpendicular to the longitudinal direction, two insulating bodies respectively holding the two rows of conductive terminals to form two terminal modules, and a shell held outside the insulating bodies, each row of conductive terminals comprising a holding portion held by the insulating body, a contact portion extending upward from the holding portion, and a welding portion extending downward from the holding portion out of the insulating body, each row of conductive terminals comprising a signal terminal and a ground terminal, characterized in that: The electrical connector also includes a metal plate body extending longitudinally and respectively fixed on the two insulating bodies. The grounding terminals in each row of conductive terminals are integrally extended from the metal plate body. The two metal plates are located between the two rows of conductive terminals in the transverse direction. The two metal plates are welded and fixed to each other so that the two terminal modules are fixed to each other.

2. The electrical connector according to claim 1, wherein: Each insulating body is extended from both sides of each metal plate in the longitudinal direction and extends laterally toward the other metal plate to form a welding plate. The welding plates of the two metal plates are welded to each other to fix the two terminal modules to each other.

3. The electrical connector according to claim 2, wherein: Each of the metal plates comprises a base body and welding plates extending from upper and lower ends of both longitudinal sides of the base body and arranged at intervals from top to bottom.

4. The electrical connector according to claim 1, wherein: Each row of conductive terminals and the metal plate are injection molded on the insulating body. Each row of conductive terminals extends upward from the retaining portion of the insulating body to form an elastic arm with the contact portion. The insulating body is retained at the lower end of the shell. The upper end of the shell is provided with a docking cavity with a socket for accommodating the elastic arm.

5. The electrical connector according to claim 4, wherein: The metal plate body is located on the inner side of the retaining portion of the signal terminal, the insulating body extends upward from the upper side of the metal plate body to form an elastic arm of the grounding terminal, the insulating body extends downward from the lower side of the metal plate body to form a welding portion of the grounding terminal, and the retaining portion of the grounding terminal is formed on the metal plate body.

6. The electrical connector according to claim 5, wherein: In each row of conductive terminals, the retaining portion of the grounding terminal includes a vertical portion located inside the retaining portion of the signal terminal and an extension portion formed by bending and extending outward from the upper and lower sides of the vertical portion, and the retaining portion of the grounding terminal is roughly in a "[" shape.

7. The electrical connector according to claim 1, wherein: The mating surfaces of the two insulating bodies that abut against each other in the transverse direction are provided with mutually mating positioning columns and positioning holes. In each terminal module, the metal plate is closer to the mating surface than the retaining portion of the signal terminal.

8. The electrical connector according to claim 1, wherein: In each row of conductive terminals, two adjacent signal terminals form a differential terminal pair, the differential terminal pair and the grounding terminals are arranged alternately, and the retaining portions of the signal terminals are exposed to the longitudinal outer side surface of the insulating body.

9. The electrical connector according to claim 8, wherein: The longitudinal outer side surface of the insulating body protrudes between adjacent differential terminal pairs to form a separation rib.

10. The electrical connector according to claim 9, wherein: The shell is made of insulating material, and the longitudinal outer side surface of the insulating body protrudes to form a plurality of protrusions, which include interference protrusions that interfere with the inner wall surface of the shell and retaining protrusions that are buckled with retaining holes provided in the shell.

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