Conductive terminal and electric connector

Abstract

The utility model provides a conductive terminal and an electric connector, the conductive terminal is provided with a fixing part, a contact part and a pin part, the contact part and the pin part respectively extend from two ends of the fixing part, the conductive terminal also comprises a reverse folding part which is formed by further bending and extending from the contact part outwards and reversely, and the reverse folding part is electrically connected with the fixing part. According to the utility model, the fixed part, the contact part and the reflexed part of the grounding terminal form a closed current loop so as to improve signal crosstalk and improve signal transmission rate.

Description

Technical field

[0001] The utility model relates to a conductive terminal and an electrical connector, and in particular to a conductive terminal and an electrical connector with good high-frequency performance. [Background Technology]

[0002] Chinese utility model number CN107706675B discloses an electrical connector comprising an insulating body and two rows of conductive terminals disposed on the insulating body. Each conductive terminal comprises a fixed portion secured to the insulating body, a contact portion extending from opposite ends of the fixed portion, and a pin portion. The conductive terminals comprise a ground terminal and a signal terminal having substantially identical structures. There is a risk of signal crosstalk between the signal terminals.

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

[0004] The purpose of the utility model is to provide an electrical connector for improving signal crosstalk.

[0005] The purpose of the present invention is achieved through the following technical solution: a conductive terminal, which has a fixed part, a contact arm and a pin part extending from both ends of the fixed part respectively, and the conductive terminal also includes a reversed part formed by further bending outward and extending from the contact arm, and the reversed part is electrically connected to the fixed part.

[0006] Furthermore, the fixing portion is extended in the up and down directions, and the conductive terminal also includes a first extension section extending upward from the fixing portion, a second extension section deviating from the first extension section in the first direction from the first extension section, a bending section bent in the opposite direction along the first direction from the second extension section, and a reverse bending section extending downward from the bending section, the first extension section and the second extension section form the contact arm, and the second extension section and the bending section form a contact point at the connection.

[0007] Furthermore, a connection between the bent section and the inflected portion forms an inflection point, and the inflection point is located above the contact point in the up-down direction.

[0008] Furthermore, when the conductive terminals are plugged in and mated, the contact point is offset relative to the fixing portion in a first direction.

[0009] Furthermore, the fixing portion extends in the up-down direction, the inflected portion includes an inflected section extending in the up-down direction and an abutting section deviating from the inflected section in a first direction, and the inflected section is electrically connected to the fixing portion through the abutting section.

[0010] Furthermore, the inflected section has a first surface close to the fixing portion in the first direction, and the fixing portion has a second surface close to the inflected section in the first direction corresponding to the first surface, and the first surface and the second surface are arranged parallel to each other and spaced apart in the first direction.

[0011] The purpose of the present invention can also be achieved through the following technical solutions: an electrical connector includes an insulating body and a plurality of signal terminal pairs and a plurality of ground terminals fixed on the insulating body, the signal terminal pairs and the ground terminals are arranged in two rows in a first direction, and the signal terminal pairs and the ground terminals in the same row are alternately arranged with each other in a second direction perpendicular to the first direction, each of the signal terminal pairs includes two signal terminals, the signal terminals and the ground terminals have a fixed portion fixed on the insulating body, and contact arms and pin portions formed by extending from both ends of the fixed portion to form the insulating body respectively; compared with the signal terminal, the ground terminal also includes a reversed portion formed by further bending outward and extending from the contact arm, and the reversed portion is electrically connected to the fixed portion.

[0012] Furthermore, the electrical connector also includes an insulating frame that is sleeved outside the insulating body, the insulating frame having a pair of side walls extending in a second direction and a pair of end walls connecting the pair of side walls, the side walls and the end walls are surrounded by a mounting groove, the mounting groove has a docking space for docking, and the contact arm protrudes from the fixed portion into the docking space to form the contact point.

[0013] Furthermore, the grounding terminal further includes a connecting portion integrally connecting a plurality of the grounding terminals in the same row, the connecting portion being integrally connected to adjacent inflected portions, and the connecting portion and the inflected portion being integrally accommodated in the mounting groove.

[0014] Furthermore, the insulating body has an outer wall surface extending in the second direction and arranged opposite to the side wall, and the outer wall surface is recessed with an opening at a position corresponding to the grounding terminal, the fixed portion of the grounding terminal is exposed outwardly through the opening, and the grounding terminal is electrically connected to the fixed portion through an abutment section extending into the opening.

[0015] Compared with the prior art, the present invention has the following advantages: the grounding terminals in the electrical connector of the present invention are integrally connected via the connecting portion to reduce crosstalk resonance. Furthermore, the folded portion of the grounding terminal is electrically connected to the fixing portion to form a closed current loop, thereby reducing signal crosstalk.

Brief Description of the Drawings

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

[0017] Figure 2 yes Figure 1 A stereogram viewed from another direction.

[0018] Figure 3 It is a three-dimensional exploded view of the electrical connector of the present utility model.

[0019] Figure 4 yes Figure 3 Exploded perspective view from another direction.

[0020] Figure 5 It is a three-dimensional exploded view of the first insulator, the second insulator and the conductive terminal after assembly of the utility model.

[0021] Figure 6 yes Figure 5 Further exploded perspective view.

[0022] Figure 7 yes Figure 6 Exploded perspective view from another direction.

[0023] Figure 8 It is a three-dimensional exploded view of the first conductive terminal of the present invention.

[0024] Figure 9 It is a side view of the first conductive terminal of the present invention.

[0025] Figure 10 yes Figure 1 Sectional view along line AA.

[0026] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0027] The following will be combined Figures 1 to 10 The electrical connector 100 of the present invention is described.

[0028] Please refer to Figures 1 to 5As shown, the electrical connector 100 includes an insulating body 1, two rows of conductive terminals 2 fixed to the insulating body 1 and spaced apart along a first direction, and an insulating frame 3 sleeved over the insulating body 1 and the conductive terminals 2. The insulating frame 3 includes a pair of side walls 31 extending in a second direction perpendicular to the first direction, and a pair of end walls 32 extending in the first direction and connecting the pair of side walls 31. The pair of side walls 31 and the pair of end walls 32 surround and form an upwardly recessed mounting groove 33. The insulating body 1 includes a first insulator 11 and a second insulator 12. The first insulator 11 and the second insulator 12 are assembled and fixed to each other and then assembled from the bottom up into the mounting groove 33. The insulating frame also includes a docking space 34 recessed from the top for docking with a docking connector (not shown). The docking connector (not shown) extends from the top down into the docking space 34.

[0029] Please refer to Figures 3 to 7 As shown, the conductive terminals 2 include a first conductive terminal 201 and a second conductive terminal 202 spaced apart in a first direction. Each row of the conductive terminals 2 includes a plurality of signal terminal pairs and a ground terminal G arranged alternately in a second direction. Each signal terminal pair includes two signal terminals S. Each conductive terminal 2 includes a fixed portion 21 retained within the insulating body 1, a contact arm 22 extending upward from the fixed portion 21 and out of the insulating body 1, and a pin portion 23 extending downward from the fixed portion 21 and out of the insulating body 1. The fixed portion 21 extends in the vertical direction.

[0030] Please further combine Figures 8 to 10 As shown, the direction approaching the docking space 34 in the first direction is defined as the first positive direction, and the direction away from the docking space 34 in the first direction is defined as the first negative direction. The contact arm 22 includes a first extension segment 221 extending upward from the fixing portion 21, and a second extension segment 222 extending from the first extension segment 221 in the first positive direction, offset from the first extension segment 221. The second extension segment 222 bends in the first negative direction to form a bent segment 24. The second extension segment 222 and the bent segment 24 form a contact point 26 at their connection. The contact point 26 is disposed within the docking space 34 for electrical connection to the docking connector (not shown).

[0031] The ground terminal G further includes a bent portion 25 extending downward from the bent section 24. The bent portion 25 includes a bent section 251 extending in the vertical direction and an abutting section 252 offset from the bent section 251 in a first direction. The bent section 251 is connected to the fixed portion 21 via an electrical contact 253 of the abutting section 252. The ground terminal G also includes a connecting portion 27 that integrally connects the bent sections 251 of the ground terminals G in the same row, thereby electrically integrating the ground terminals G. The connecting portion 27 connects the bent sections 251 of two adjacent ground terminals G and is located outside the contact arm 22 in the first direction to shield external signal crosstalk.

[0032] Please refer to Figure 10 As shown, when current enters the ground terminal G from the contact point 26, two paths are formed: one connecting to the pin portion 23 through the second extension section 222 and the other connecting to the inflected section 251 through the bent section 24. At this time, the common-mode current in the inflected section 251 and the second extension section 222 increases the magnetic flux of the current, thereby generating impedance. The current flowing from the contact point 26 through the second extension section 222 to the pin portion 23, when passing through the fixed portion 21, flows back through the electrical contact 253 along the abutting section 252 and the inflected section 251, thereby eliminating the magnetic flux generated by the current and reducing the impedance.

[0033] The connection between the bent section 24 and the inflected section 251 forms an inflection point 28, which is located vertically above the contact point 26. In other embodiments, the abutting section 252 can also be fixed to the fixing portion 21 by welding. The fixing portion 21 and the inflected section 251 are arranged parallel to each other, and the inflected section 251 has a first surface that is adjacent to the fixing portion 21 in a first direction. The fixing portion 21 has a second surface that corresponds to the first surface and is adjacent to the inflected section 251 in the first direction. The first and second surfaces are spaced apart from each other in the first direction.

[0034] Please combine Figure 8 and Figure 9As shown, the connecting portion 27 is configured as a flat plate-like structure extending in a first direction. The connecting portion 27 and the inflected section 251 are coplanar. The connecting portion 27 and the inflected section 251 of the ground terminal G are received within the mounting groove 33, located on the inner side of the side wall 31. When the electrical connector 100 is docked, the contact point 26 and the contact arm 22 displace in the opposite direction along the first direction, and the connecting portion 27 and the inflected section 251 abut against the side wall 31 to limit the deformation space of the ground terminal G. The conductive terminal 2 is installed from bottom to top into the mounting groove 33 of the insulating frame 3 along the insulating body 1. The insulating body 1 has an outer wall surface corresponding to the side wall 31. The first insulator 11 and the second insulator 12 each include an opening 13 recessed inwardly from the outer wall surface along the first direction. The opening 13 is formed corresponding to the ground terminal G, exposing the fixing portion 21 of the ground terminal G. In this embodiment, neither the inflected section 251 nor the abutting section 252 is formed within the insulating body 1. Instead, the abutting section 252 extends from the exterior of the insulating body 1 into the opening 13 to abut against the fixed portion 21 of the ground terminal G. The abutting section 252 forms an electrical contact 253 at the point of electrical connection with the fixed portion 21. When the contact point 26 is mated, the inflected section 251 abuts against the sidewall 31, further increasing the abutting force between the electrical contact 253 and the fixed portion 21, ensuring a stable electrical connection.

[0035] The above description is only part of the embodiments of the present invention, not all of the embodiments. Any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the specification of the present invention are covered by the claims of the present invention.

Claims

1. A conductive terminal, characterized in that: The conductive terminal comprises a fixed portion, a contact arm and a pin portion respectively extending from two ends of the fixed portion, and the conductive terminal further comprises a folded portion formed by further bending outward and extending from the contact arm, and the folded portion is electrically connected to the fixed portion.

2. The conductive terminal according to claim 1, wherein: The fixing portion is extended in the up-down direction, and the conductive terminal further includes a first extension section extending upward from the fixing portion, a second extension section deviating from the first extension section in a positive direction along the first direction from the first extension section, a bending section bent in the opposite direction along the first direction from the second extension section, and a reverse bending section extending downward from the bending section, the first extension section and the second extension section form the contact arm, and the second extension section and the bending section form a contact point at the connection.

3. The conductive terminal according to claim 2, wherein: A connection between the bending section and the inflected portion forms an inflection point, and the inflection point is located above the contact point in the up-down direction.

4. The conductive terminal according to claim 2, wherein: When the conductive terminals are plugged and mated, the contact point is offset relative to the fixing portion in a first direction.

5. The conductive terminal according to claim 1, wherein: The fixing portion is extended in the up-down direction, the inflected portion includes an inflected section extending in the up-down direction and an abutting section deviating from the inflected section in a first direction, and the inflected section is electrically connected to the fixing portion through the abutting section.

6. The conductive terminal according to claim 5, characterized in that: The inflected section has a first surface close to the fixing portion in the first direction, the fixing portion has a second surface close to the inflected section in the first direction corresponding to the first surface, and the first surface and the second surface are arranged parallel to each other and spaced apart in the first direction.

7. An electrical connector, characterized in that: The electrical connector includes an insulating body and a plurality of signal terminal pairs and a plurality of ground terminals fixed on the insulating body. The signal terminal pairs and the ground terminals are arranged in two rows in a first direction. The signal terminal pairs and the ground terminals in the same row are alternately arranged with each other in a second direction perpendicular to the first direction. Each of the signal terminal pairs includes two signal terminals. The signal terminals and the ground terminals have a fixed portion fixed on the insulating body, and contact arms and pin portions formed by extending from both ends of the fixed portion respectively to form the insulating body. Compared with the signal terminal, the ground terminal also includes a reverse bending portion formed by further bending outward and extending from the contact arm, and the reverse bending portion is electrically connected to the fixed portion.

8. The electrical connector according to claim 7, wherein: The electrical connector also includes an insulating frame sleeved outside the insulating body, the insulating frame having a pair of side walls extending in a second direction and a pair of end walls connecting the pair of side walls, the side walls and the end walls are surrounded by a mounting groove, the mounting groove has a docking space for docking, and the contact arm protrudes from the fixed portion into the docking space to form a contact point.

9. The electrical connector according to claim 8, wherein: The grounding terminal further comprises a connecting portion integrally connecting a plurality of the grounding terminals in the same row, the connecting portion being integrally connected to adjacent inflected portions, and the connecting portion and the inflected portions being integrally accommodated in the mounting groove.

10. The electrical connector according to claim 8, wherein: The insulating body has an outer wall surface extending in the second direction and arranged opposite to the side wall, and the outer wall surface is recessed with an opening at a position corresponding to the grounding terminal, the fixing portion of the grounding terminal is exposed to the outside through the opening, and the grounding terminal is electrically connected to the fixing portion through an abutment section extending into the opening.

Images