Electrical connectors

Abstract

This utility model provides an electrical connector including an insulating body and two rows of conductive terminals fixed to the insulating body. Each row of conductive terminals includes a first terminal and a second terminal. The first terminal has a first holding portion fixed to the insulating body, a first contact portion extending from one end of the first holding portion out of the insulating body, and a first connecting portion extending from the other end of the first holding portion. The second terminal has a second holding portion fixed to the insulating body, a second contact portion extending from one end of the second holding portion out of the insulating body, and a second connecting portion extending from the other end of the second holding portion. The first connecting portion is electrically connected to a cable, and the second connecting portion is exposed outside the insulating body. The insulating body includes a first insulator and a second insulator respectively formed outside the two rows of conductive terminals. The first insulator and the second insulator have mating surfaces disposed opposite to each other and a snap-fit ​​assembly located on the mating surfaces to snap the first insulator and the second insulator together.

Description

Technical Field

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector with excellent high-frequency performance. Background Technology

[0002] In existing technologies, for electrical connectors with low-speed and high-speed signal terminals, the high-speed signal terminals typically require a circuit board to be connected to the high-speed cable, and this connection can interfere with signal integrity. Similarly, the low-speed signal terminals are also connected to an external connector via a circuit board, which limits the application range of these electrical connectors.

[0003] Therefore, it is indeed necessary to provide a new electrical connector to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this invention is to provide an electrical connector with excellent high-frequency performance.

[0005] The objective of this utility model is achieved through the following technical solution: An electrical connector includes an insulating body and two rows of conductive terminals fixed to the insulating body. Each row of conductive terminals includes a first terminal and a second terminal. The first terminal has a first holding portion fixed to the insulating body, a first contact portion extending from one end of the first holding portion out of the insulating body, and a first connecting portion extending from the other end of the first holding portion. The second terminal has a second holding portion fixed to the insulating body, a second contact portion extending from one end of the second holding portion out of the insulating body, and a second connecting portion extending from the other end of the second holding portion. The first connecting portion is electrically connected to a cable, and the second connecting portion is exposed outside the insulating body. The insulating body includes a first insulator and a second insulator respectively formed outside the two rows of conductive terminals. The first insulator and the second insulator have opposing mating surfaces and a snap-fit ​​assembly located on the mating surfaces to snap the first insulator and the second insulator together.

[0006] Furthermore, the electrical connector also includes an insulating housing disposed outside the insulating body, the insulating housing having a pair of long sidewalls and a pair of short sidewalls, the long sidewalls and the short sidewalls surrounding and forming a mating cavity, the first contact portion and the second contact portion being received in the mating cavity.

[0007] Furthermore, a plurality of second contact portions of the conductive terminals in the same row are arranged in the lateral direction, each second contact portion extends in the front-back direction perpendicular to the lateral direction, and the second connecting portion extends in the lateral direction. The second retaining portion has a bending portion so that the second contact portion and the second connecting portion can extend in mutually perpendicular directions. The first connecting portion and the first contact portion both extend in the front-back direction.

[0008] Furthermore, both the first insulator and the second insulator have mating surfaces that engage with a mating connector, and the second connection portions of each row of conductive terminals are exposed on two of the mating surfaces.

[0009] Furthermore, the second connection portion includes a mating portion that mates with the mating connector and a terminal retaining portion that extends further from the end of the mating portion by bending. The terminal retaining portion is flat and gradually moves away from the mating surface to form an angle with the mating portion. The insulating body covers the terminal retaining portion to enhance the retaining force on the second connection portion.

[0010] Furthermore, the first insulator and the second insulator have a receiving cavity formed by recesses from the mating surface, and the first connecting portion is exposed in the receiving cavity for electrical connection with the cable.

[0011] Furthermore, the first insulator and the second insulator have through holes for the cable to pass through, and the cable enters the receiving cavity through the through holes.

[0012] Furthermore, the snap-fit ​​assembly includes a snap-fit ​​block and a snap-fit ​​groove disposed on the mating surface. The snap-fit ​​block is configured to protrude from the mating surface. The snap-fit ​​block is disposed on the mating surface of one of the first insulators and the second insulator. The snap-fit ​​block has a dovetail structure. The snap-fit ​​groove is correspondingly disposed on the mating surface of the other insulator. The structure of the snap-fit ​​groove is adapted to the snap-fit ​​block to ensure that the first insulator and the second insulator can be stably fastened in a direction perpendicular to the mating surface.

[0013] Furthermore, the second connecting portion extends outward from the insulating body to be mounted and electrically connected to an external circuit board.

[0014] Furthermore, the second connecting part is fisheye shaped, with an opening and two contact arms arranged around the outer periphery of the opening. The two contact arms are arranged side by side in the front-rear direction, with their head ends connected and their tail ends connected.

[0015] Compared with existing technologies, this invention has the following advantages: In this invention, the high-speed signal terminals of the electrical connector are directly connected to the cable, avoiding the influence of the circuit board on signal integrity. Furthermore, the low-speed signal terminals are mounted with their insulating bodies exposed for direct electrical connection to external connectors or external circuit boards, thus broadening its application range. Attached Figure Description

[0016] Figure 1 This is a perspective view of the electrical connector of this utility model mating with a mating connector.

[0017] Figure 2 This is an exploded perspective view of the electrical connector and the mating connector of this utility model.

[0018] Figure 3 This is an exploded perspective view of the electrical connector of this utility model.

[0019] Figure 4 yes Figure 3 A three-dimensional exploded view from another direction.

[0020] Figure 5 This is an exploded perspective view of the two rows of conductive terminals and the insulating body formed outside the conductive terminals of this utility model.

[0021] Figure 6 yes Figure 5 A three-dimensional exploded view from another direction.

[0022] Figure 7 This is an exploded perspective view of the first insulator and the second insulator in the insulating body of this utility model.

[0023] Figure 8 This is an exploded perspective view of the two rows of conductive terminals of this utility model.

[0024] Figure 9 yes Figure 8 A three-dimensional exploded view from another direction.

[0025] Figure 10 This is a perspective view of the electrical connector of the second embodiment of the present invention mating with an external circuit board.

[0026] Figure 11 This is an exploded perspective view of the electrical connector and an external circuit board according to the second embodiment of this utility model.

[0027] Figure 12 This is a perspective view of the electrical connector according to the second embodiment of this utility model.

[0028] Figure 13 This is an exploded perspective view of the electrical connector according to the second embodiment of this utility model.

[0029] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0030] The following will combine Figures 1 to 13 This invention relates to an electrical connector.

[0031] Please refer to Figures 1 to 9 As shown, the electrical connector 100 of the first embodiment of this utility model includes an insulating body 1 and two rows of conductive terminals 2 fixed to the insulating body 1. Each row of conductive terminals 2 includes a first terminal pair for transmitting high-frequency signals and a ground terminal G alternately spaced with the first terminal pair, a second terminal pair for transmitting low-frequency signals, and a plurality of ground terminals G alternately spaced with the second terminal pair. Each first terminal pair has two first terminals 21 spaced apart in the lateral direction, and each second terminal pair has two second terminals 22 spaced apart in the lateral direction. The first terminals 21 are electrically connected to a cable 3, and the second terminals 22 are electrically connected to a mating connector 200.

[0032] Specifically, please refer to Figures 3 to 9 As shown, the first terminal 21 has a first holding portion 211 fixed to the insulating body 1, a first contact portion 212 extending from one end of the first holding portion 211 out of the insulating body 1, and a first connecting portion 213 extending from the other end of the first holding portion 211. The first contact portion 212 is used for electrical contact with a circuit board (not shown). The first connecting portion 213 is directly soldered to the cable 3 to ensure signal integrity. Of course, the first connecting portion 213 and the cable 3 can also be connected in other ways. The second terminal 22 has a second holding portion 221 fixed to the insulating body 1, a second contact portion 222 extending from one end of the second holding portion 221 out of the insulating body 1, and a second connecting portion 223 extending from the other end of the second holding portion 221. The second contact portion 222 is used for electrical contact with a circuit board (not shown). The second connecting portion 213 is connected to the mating connector 200. The insulating body 1 has a mating tongue 13 that mates with the mating connector 200. The insulating body 1 includes a first insulator 11 and a second insulator 12 respectively formed outside the two rows of conductive terminals 2. The first insulator 11 and the second insulator 12 each have two mating surfaces 14 that engage with the mating connector 200 to jointly form the mating tongue 13. The second connecting portion 223 of each row of conductive terminals 2 is exposed on the two mating surfaces 14 respectively.

[0033] The electrical connector 100 further includes an insulating shell 4 sleeved outside the insulating body 1. The insulating shell 4 has a pair of long sidewalls 41 and a pair of short sidewalls 42, which surround and form a mating cavity 43. The first contact portion 212 and the second contact portion 222 are received in the mating cavity 43.

[0034] Please refer to Figure 8 and Figure 9 As shown, each row of conductive terminals 2 includes a first terminal pair for transmitting high-frequency signals, a second terminal pair for transmitting low-frequency signals, and a ground terminal G. A plurality of second contact portions 222 of the same row of conductive terminals 2 are arranged in the lateral direction. Each second contact portion 222 extends in a front-rear direction perpendicular to the lateral direction, while the second connecting portion 223 extends in the lateral direction. The second retaining portion 221 has a bending portion 2211 to allow the second contact portion 222 and the second connecting portion 223 to extend in mutually perpendicular directions, while the first connecting portion 213 and the first contact portion 212 both extend in the front-rear direction. This results in two first terminals 21 in the same first terminal pair having the same front-rear dimension, but two second terminals 22 in the same second terminal pair having different total lengths from the second contact portion 222 to the second connecting portion 223.

[0035] The second connecting portion 223 includes a mating portion 2231 that mates with the mating connector 200 and a terminal holding portion 2232 that extends further from the end of the mating portion 2231 by bending. The mating portion 2231 is exposed on the mating surface 14 of the mating tongue 13, while the terminal holding portion 2232 is covered by the insulating body 1. The terminal holding portion 2232 is flat and gradually moves away from the mating surface 14 to form an angle with the mating portion 2231. The insulating body 1 covers the terminal holding portion 2232 to enhance the holding force on the second connecting portion 223 in all directions.

[0036] The following will combine Figures 3 to 7The structure of the first insulator 11 and the second insulator 12 is described in detail. The first insulator 11 and the second insulator 12 have opposing mating surfaces 10 and snap-fit ​​components located on the mating surfaces 10 that snap the first insulator 11 and the second insulator 12 together. The snap-fit ​​components include a plurality of snap-fit ​​blocks 101 and a plurality of snap-fit ​​grooves 102 disposed on the mating surfaces 10. The snap-fit ​​blocks 101 are configured as dovetail structures protruding from the mating surfaces 10, and the structures of the snap-fit ​​grooves 102 are adapted to the snap-fit ​​blocks 101. The mating surfaces 10 of both the first insulator 11 and the second insulator 12 are provided with snap-fit ​​blocks 101 and snap-fit ​​grooves 102, which are aligned and fitted in the front-to-back direction to ensure that the first insulator 11 and the second insulator 12 can be stably engaged in a direction perpendicular to the mating surfaces 10. The first insulator 11 and the second insulator 12 are respectively provided with a snap-fit ​​block 101 and a snap-fit ​​groove 102 on opposite sides of the mating surface 14. The two mating surfaces 14 are assembled to form the mating tongue plate 13 through the cooperation of the snap-fit ​​block 101 and the snap-fit ​​groove 102. The insulating body 1 is formed by snap-fit ​​assembly of the first insulator 11 and the second insulator 12, which only requires two injection molding processes for the first insulator 11 and the second insulator 12, simplifying the manufacturing process.

[0037] Please refer to Figures 5 to 7 As shown, the first insulator 11 and the second insulator 12 have a recessed cavity 15 formed from the mating surface 10, and the first connecting portion 213 is exposed in the cavity 15 for electrical connection with the cable 3. The first insulator 11 and the second insulator 12 have through holes 151 for the cable 3 to pass through, and the cable 3 enters the cavity 15 through the through holes 151. The bottom of the cavity 15 has a mounting groove 152 that fits the cable 3, and the mounting groove 152 can separate the cable 3 and maintain the relative fixation of the cable 3's position within the cavity 15. The front end of the cable 3 is soldered to the first connecting portion 213.

[0038] Please refer to Figures 10 to 13As shown, the electrical connector 100' of the second embodiment of this utility model also has two rows of conductive terminals 2' and an insulating body 1' fixed outside the conductive terminals 2'. Each row of conductive terminals 2' includes a first terminal pair for transmitting high-frequency signals and a ground terminal G' alternately spaced with the first terminal pair, a second terminal pair for transmitting low-frequency signals, and a plurality of ground terminals G' alternately spaced with the second terminal pair. Each first terminal pair has two first terminals 21' spaced apart in the lateral direction, and each second terminal pair has two second terminals 22 spaced apart in the lateral direction. The first terminals 21' are electrically connected to the cable 3', while the second terminals 22' are electrically connected to an external circuit board 200'.

[0039] The main difference between the electrical connector 100' of the second embodiment of this utility model and the first embodiment is that, in the second embodiment, the second connecting portion 223' of the second terminal 22' of the electrical connector 100' does not have a formed insulating body, but extends beyond the insulating body 1' to be mounted and electrically connected to an external circuit board 200'. The second connecting portion 223' is fisheye-shaped, having an opening 2231' and two contact arms 2232' arranged around the outer periphery of the opening. The two contact arms 2232' are arranged side by side in the front-back direction, with their head ends connected and their tail ends connected. The external circuit board 200' has a plurality of mating holes 201' for mounting the second connecting portion 223'.

[0040] The second embodiment replaces the mating tongue in the first embodiment by designing the second connecting portion in a fisheye shape. This allows the electrical connector of the second embodiment to directly mate with an external circuit board, facilitating installation and expanding the application range of the electrical connector.

[0041] The above description is only a partial embodiment of the present utility model, not all of the embodiments. Any equivalent changes to the technical solution of the present utility model made by those skilled in the art after reading the present utility model specification shall be covered by the claims of the present utility model.

Claims

1. An electrical connector comprising an insulating body and two rows of conductive terminals fixed to the insulating body, each row of conductive terminals comprising a first terminal and a second terminal, the first terminal having a first holding portion fixed to the insulating body, a first contact portion extending from one end of the first holding portion out of the insulating body, and a first connecting portion extending from the other end of the first holding portion; the second terminal having a second holding portion fixed to the insulating body, a second contact portion extending from one end of the second holding portion out of the insulating body, and a second connecting portion extending from the other end of the second holding portion, characterized in that: The first connecting part is electrically connected to the cable, and the second connecting part exposes the insulating body. The insulating body includes a first insulator and a second insulator respectively formed outside the two rows of conductive terminals. The first insulator and the second insulator have mating surfaces arranged opposite to each other and a snap-fit ​​assembly located on the mating surfaces to snap the first insulator and the second insulator together.

2. The electrical connector as described in claim 1, characterized in that: The electrical connector further includes an insulating housing disposed outside the insulating body, the insulating housing having a pair of long sidewalls and a pair of short sidewalls, the long sidewalls and the short sidewalls surrounding and forming a mating cavity, the first contact portion and the second contact portion being received in the mating cavity.

3. The electrical connector as described in claim 1, characterized in that: A plurality of second contact portions of the conductive terminals in the same row are arranged in the lateral direction, each second contact portion extends in the front-back direction perpendicular to the lateral direction, and the second connecting portion extends in the lateral direction. The second retaining portion has a bending portion so that the second contact portion and the second connecting portion can extend in mutually perpendicular directions. The first connecting portion and the first contact portion both extend in the front-back direction.

4. The electrical connector as described in claim 1, characterized in that: Both the first insulator and the second insulator have mating surfaces that engage with a mating connector, and the second connection portions of each row of conductive terminals are exposed on two of the mating surfaces.

5. The electrical connector as described in claim 4, characterized in that: The second connection portion includes a mating portion that mates with a mating connector and a terminal holding portion that extends further from the end of the mating portion by bending. The terminal holding portion is flat and gradually moves away from the mating surface to form an angle with the mating portion. The insulating body covers the terminal holding portion to enhance the holding force on the second connection portion.

6. The electrical connector as claimed in claim 1, characterized in that: The first insulator and the second insulator have a receiving cavity recessed from the mating surface, and the first connecting portion is exposed in the receiving cavity for electrical connection with the cable.

7. The electrical connector as claimed in claim 6, characterized in that: The first insulator and the second insulator have through holes for the cable to pass through, and the cable enters the receiving cavity through the through holes.

8. The electrical connector as claimed in claim 1, characterized in that: The snap-fit ​​assembly includes a snap-fit ​​block and a snap-fit ​​groove disposed on the mating surface. The snap-fit ​​block is configured to protrude from the mating surface. The snap-fit ​​block is disposed on the mating surface of one of the first insulators and the second insulator. The snap-fit ​​block has a dovetail structure. The snap-fit ​​groove is disposed on the mating surface of the other insulator. The structure of the snap-fit ​​groove is adapted to the snap-fit ​​block to ensure that the first insulator and the second insulator can be stably fastened in a direction perpendicular to the mating surface.

9. The electrical connector as claimed in claim 1, characterized in that: The second connecting portion extends outward from the insulating body to be mounted and electrically connected to an external circuit board.

10. The electrical connector as claimed in claim 9, characterized in that: The second connecting part is fisheye shaped, with an opening and two contact arms arranged around the outer periphery of the opening. The two contact arms are arranged side by side in the front-rear direction, with their head ends connected and their tail ends connected.

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