TW201503500A - High-speed electrical connector assembly and circuit board coupled with the same - Google Patents

Abstract

A high-speed electrical connector assembly has a plug connector and a receptacle connector. Either of the plug connector or the receptacle connector comprises an insulation housing and a plurality of contact sets having a plurality of differential contact pairs each of which is not adjacent to the other pair of differential contacts and a ground contact corresponding to each pair of differential contacts. The ground contact is disposed close to each said differential contact pair without intervening a line formed by two of the plurality of differential contact pairs. The distance between the ground contact and each contact of one differential contact pair corresponding to the ground contact remains the same along the length of the ground contact. Further, the plurality of contact sets comprises the other differential contact pairs opposed to the plurality of differential contact pairs, the plurality of differential contact pairs and the other differential contact pairs are symmetrical with respect to the ground contact. Similarly, the ground contact is closed to each of the differential contact pairs and each of the other differential contact pairs without intervening the line formed by two of the plurality of differential contact pairs and a line formed by two of the other differential contact pairs. A circuit board on which a high-speed electrical connector assembly of the present invention can be mounted is also disclosed.

Description

High-speed electrical connector assembly and its coupled circuit board

The present invention relates to a high speed electrical connector assembly, and more particularly to a high speed electrical connector assembly that improves resonant frequency generation and a circuit board that couples the high speed electrical connector combination of the present invention.

High speed electrical connectors provide signal connections between electronic devices using signal contacts. Typically, the signal contacts are so closely spaced that undue interference or "crosstalk" can occur between adjacent signal contacts. Crosstalk occurs when one of the signal contacts changes the electromagnetic field due to interference and causes electrical interference in an adjacent signal contact, which in turn destroys signal integrity. Crosstalk also occurs between the differential signal pairs. Crosstalk increases as the distance between the signal contacts that interfere with each other decreases. Crosstalk can also be reduced by using ground contacts to separate adjacent signal contacts or adjacent differential signal pairs.

It is known that the arrangement of the conductive terminals of the horizontally-connected high-speed electrical connector is GSSGSSG, which causes the generation of the resonance frequency. However, at the frequency point of the resonance, the near-end and far-end crosstalk interference is remarkably enhanced, such as As shown in the thirteenth figure, the conventional high-speed electrical connector generates near-end crosstalk signals of -17.7dB and -12.3dB at resonant frequencies of 3.6 GHz and 7.4 GHz, and at resonant frequencies of 3.6 GHz and 7.4 GHz. It will generate -18.8dB and -17.7dB far-end crosstalk interference. Signals, these crosstalk signals can cause high-speed electrical connectors to malfunction.

Another conventional high-voltage electrical connector of the vertically-connected high-speed electrical connector has a two-column arrangement, and the arrangement of the two rows of conductive terminals is an arrangement of the misaligned GSSGSSG, and the arrangement also causes a resonance frequency to be generated. At the resonant frequency point, the near-end and far-end crosstalk interference is also significantly enhanced. As shown in Fig. 14, the conventional high-speed electrical connector has a resonant frequency of 6.2 GHz, 11.2 GHz, and 15.4. Near-end crosstalk interference signals of -19.4dB, -17.4dB, -25dB, and -15.8dB at GHz and 17.8GHz, and -1.8 at 6.2GHz, 11.2GHz, 15.4GHz, and 17.8GHz Far-end crosstalk signals of dB, -2.7dB, -2.1dB, and -8dB. These crosstalk signals can cause high-speed electrical connectors to malfunction.

With the miniaturization of electronic devices and high-speed signal transmission, the reduction of electronic communication and crosstalk of high signal integrity has become an important factor in connector design. It is therefore desirable to provide an improved connector that improves the occurrence of resonant frequencies and thereby reduces the effects of crosstalk, especially for high speed connectors.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a horizontally coupled high speed electrical connector that improves the generation of resonant frequencies, thereby reducing crosstalk interference problems, and a circuit board coupled to the high speed electrical connector of the present invention.

Another object of the present invention is to provide a vertically-connected high-speed electrical connector that improves the generation of a resonant frequency, thereby reducing the problem of crosstalk interference, and a circuit board coupled to the high-speed electrical connector of the present invention.

The high-speed electrical connector for achieving the above object comprises: an insulative body and a plurality of conductive terminal groups fixed on the insulative housing, the plurality of conductive terminal groups having a plurality of adjacent conductive terminals a plurality of differential signal terminal pairs and a single ground terminal corresponding to each of the differential signal terminal pairs, wherein the ground terminal is misaligned between the pair of differential signal terminals and opposite to the differential signal terminal along the length direction of the terminals The individual terminals maintain an equidistant relationship, and there is no grounding terminal between the pair of differential signal terminals that are not adjacent.

The plurality of conductive terminal groups further includes a plurality of pairs of differential signal terminals disposed symmetrically with respect to the ground terminal and symmetrically coupled to the pair of differential signal terminals, and each of the plurality of differential signal terminals is not adjacent to each other. The plurality of differential signal terminal pairs include a first differential signal terminal pair, and the plurality of differential signal terminals include a second differential signal terminal pair, the first differential signal terminal pair And the second differential signal terminal pair is oppositely arranged and symmetrically arranged, and the grounding terminal is offset from each of the differential signal terminals and disposed on the first differential signal terminal pair and the second differential signal terminal. And the respective terminals of the first differential signal terminal pair and the individual terminals of the second differential signal terminal pair are kept in an equidistant relationship.

The terminal of the first differential signal terminal pair, the terminal of the second differential signal terminal pair, and the ground terminal each have a contact portion and a soldering portion, and the contact portion of the ground terminal is a plate-shaped body, and The welded portion of the ground terminal protrudes from one side of the plate-shaped body.

The circuit board of the coupled electrical connector can be coupled to an electrical connector. The electrical connector includes an insulative housing and a plurality of conductive terminal sets that can be fixed to the insulative housing. a plurality of adjacent differential signal terminal pairs and a single ground terminal corresponding to each of the differential signal terminal pairs, wherein the ground terminal is misaligned between the pair of differential signal terminals and along the length direction of the terminals and the differential signal The individual terminals of the terminal pair maintain an equidistant relationship, and there is no grounding terminal between the pair of differential signal terminals that are not adjacent to each other.

The circuit board includes a plurality of pairs of first differential contacts corresponding to the pair of differential signal terminals, wherein a pair of grounding terminals are disposed correspondingly between each pair of first electrical contacts of each pair of differential signal terminals a second electrical contact portion, wherein the distance between the second electrical contact portion and the contact portion of the pair of first electrical contacts is the same, and there is no electrical contact between the two pairs of first electrical contacts for grounding .

The electrical connector further includes a plurality of pairs of differential signal terminals, the plurality of pairs of differential signal terminals being symmetrically disposed with respect to the pair of differential signal terminals relative to the ground terminal, and each of the plurality of pairs of differential signal terminals The plurality of differential signal terminal pairs include a first differential signal terminal pair, and the plurality of differential signal terminals comprise a second differential signal terminal pair, wherein the pair of differential signal terminals are disposed adjacent to each other. The first differential signal terminal pair and the second differential signal terminal pair are oppositely disposed and symmetrically arranged, and the ground terminal is offset from each of the differential signal terminals in the first differential signal terminal pair and the first Between the two differential signal terminal pairs, and the individual terminals of the first differential signal terminal pair and the individual terminals of the second differential signal terminal pair are maintained at an equidistant relationship, and the circuit board includes respectively Corresponding to the first differential contact terminal pair and the second differential signal terminal pair, the first electrical contact portion and the plurality of third electrical contact portions and the second electrical contact portion corresponding to the ground terminal, The distance between each contact portion of the first electrical contact portion and the second electrical contact portion is the same, and each of the third contact portion and the contact portion of the second electrical contact portion are the same distance, and each of the two There is no electrical contact between the first electrical contacts and each of the two pairs of third electrical contacts.

A high-speed connector assembly for achieving the above object, comprising a plug connector and a corresponding socket connector, wherein the plug connector and the corresponding socket connector each comprise an insulative housing and can be fixed to the insulative housing a plurality of conductive terminal sets, the plurality of conductive ends The sub-group has a pair of complex differential signal terminals that are not adjacent to each other and a single ground terminal that can correspond to each pair of the differential signal terminals. The ground terminal is misaligned between the pair of differential signal terminals and along the length of the terminals. The differential signal terminal maintains an equidistant relationship with respect to the individual terminals, and the pair of differential signal terminals that are not adjacent to each other does not have any grounding terminal.

Each of the terminals of each of the differential signal terminal pairs and the corresponding ground terminal has a contact portion and a soldering portion for fixing to a circuit board, and the circuit board includes a plurality of pairs corresponding to the plurality of differential signal terminal pairs An electrical contact portion, and corresponding to each of the pair of first electrical contacts of each pair of differential signal terminals, a second electrical contact portion corresponding to one of the ground terminals is disposed, and the second electrical contact portion is opposite The distances of the contact portions of an electrical contact portion are the same.

The plug connector and the corresponding socket connector each further include a plurality of pairs of differential signal terminals, the plurality of pairs of differential signal terminals being symmetrically disposed with respect to the pair of differential signal terminals with respect to the ground terminal, and Each of the plurality of differential signal terminals is disposed adjacent to each other without any ground terminal, and the plurality of differential signal terminal pairs include a first differential signal terminal pair, and the complex pair of differential signal terminals includes a second differential signal terminal pair, the first differential signal terminal pair and the second differential signal terminal are oppositely arranged and symmetrically arranged, and the ground terminal is offset from each of the differential signal terminals The first differential signal terminal pair and the second differential signal terminal pair are respectively maintained with the individual terminals of the first differential signal terminal pair and the second terminal of the second differential signal terminal pair. Distance relationship.

The high-speed electrical connector is fixed to a circuit board, and the circuit board includes a plurality of pairs of the first differential signal terminal pair and the second differential signal terminal pair, respectively, the first electrical contact portion and the plurality of third electrical signals The contact portion and the second electrical contact portion corresponding to the ground terminal are each the same distance from each contact portion of the first electrical contact portion and the second electrical contact portion, and each pair is third The contact portion is also the same distance from each contact portion of the second electrical contact portion, and there is no electrical contact portion for grounding between the first electrical contact portion and the second electrical contact portion.

1, 1' ‧ ‧ contact

2, 2' ‧ ‧ welding department

3, 3'‧‧‧Contacts

4, 4'‧‧‧Weld Department

10, 10'‧‧‧Insulated body

20, 20’‧‧‧Insulated body

21‧‧‧Back cover

30‧‧‧Electrical terminal group

31‧‧‧First differential signal terminal pair

32‧‧‧Second differential signal terminal pair

33‧‧‧ Grounding terminal

40‧‧‧Electrical terminal group

41‧‧‧First differential signal terminal pair

42‧‧‧Second differential signal terminal pair

43‧‧‧ Grounding terminal

50, 50' ‧ ‧ first pair of differential signal terminals

60, 60'‧‧‧ second pair of differential signal terminals

70, 70' ‧ ‧ first ground terminal

80, 80'‧‧‧Second ground terminal

90, 90’‧‧‧ boards

91, 91’‧‧‧ boards

92, 92'‧‧‧SMT touch pads

93, 93’ ‧ ‧ piercing contact

94‧‧‧First Electrical Contact

95‧‧‧ Third Electrical Contact

96‧‧‧Second electrical contact

100‧‧‧High speed electrical connector assembly

The first figure shows a schematic diagram of the current carrying current of a conventional line.

The second figure shows a schematic diagram of the line carrying current of the high speed connector of the present invention.

Figure 3A is an exploded perspective view showing the combination of the high speed electrical connector of an embodiment of the present invention.

Figure 3B is an exploded perspective view showing another perspective of the high speed electrical connector assembly of the first embodiment of the present invention.

The third C diagram shows an exploded schematic view of a high speed electrical connector assembly in accordance with an embodiment of the present invention.

The third D diagram is an exploded perspective view showing another perspective of the high speed electrical connector assembly of the first embodiment of the present invention.

The fourth figure shows a schematic diagram of a socket connector and a plug connector coupled to a circuit board according to an embodiment of the invention.

The fifth A diagram and the fifth B diagram show a schematic diagram of the circuit board of the fourth diagram.

Figure 6 is a perspective view showing a socket connector of another embodiment of the present invention.

Figure 7 is an exploded perspective view showing a high speed connector assembly in accordance with still another embodiment of the present invention.

8A and 8B are schematic views respectively showing a plurality of conductive end groups of the plug connector and the socket connector of the present invention.

The ninth drawing shows a schematic view of a socket connector and a plug connector coupled to a circuit board according to still another embodiment of the present invention.

Figure 11 is a schematic view showing a circuit board to which a plug connector according to still another embodiment of the present invention is coupled.

The eleventh figure shows a simulation of an optimization of the high speed electrical connector of the present invention.

The twelfth figure shows a simulation of another optimization of the high speed electrical connector of the present invention.

The thirteenth diagram shows a simulated graph of the resonant frequency of a conventional high speed electrical connector.

The fourteenth figure shows a simulated graph of the resonant frequency of another conventional high speed electrical connector.

The description of specific embodiments of the invention will be made hereinafter. It should be noted that the disclosed embodiments are merely illustrative. The scope of the invention is not limited to the specific embodiments disclosed, which are intended to include specific features, structures, or properties, and are defined by the scope of the appended claims. In addition, the illustrations referred to in the specification do not specifically describe all the features of the present invention, and the elements depicted may be expressed in a simplified and schematic manner, and the dimensions of various elements in the drawings may be described. It is exaggerated or does not conform to the actual ratio. Whether or not the foregoing is abbreviated, or whether the relevant features are described in detail, the persons described in the table are those skilled in the relevant art, and other specifics related to the features, structures, or properties may be Embodiments come Within the scope of knowledge of implementation.

Please refer to the first figure for a schematic diagram of the current carrying current of the conventional line. As shown, according to the conventional theory, when the line 1 carries the time varying current i ₁ , the coupling current i ₂ flows in the opposite direction of the line 2, and its i ₂ size is determined by the current i ₁ and the coupling coefficient K. When line 2 is used to carry the return current, the coupling current i ₂ will increase the return current, and then the increased return current will generate a coupling current on line 1, thereby increasing the original time-varying current i ₁ , thus the overall system Energy is exchanged back and forth between line 1 and line 2. At this time, if there is an external source of interference, the chance of resonance frequency is increased.

Please refer to the second figure, which is a schematic diagram showing the line carrying current of the high speed connector of the present invention. According to the conventional theory of the first figure, the return current of the high-speed signal naturally tends to flow to the path of low impedance. Therefore, as shown in the second figure of the present invention, when the magnitude of a differential signal is equal and the polarity is opposite, i ₁ And i ₂ flow in opposite directions at terminal 1 (Pin+1) and terminal 3 (Pin-3), respectively, and set their unique ground terminal 2 (Pin 2) in the middle of terminal 1 and terminal 3, resulting in a terminal terminal coupling coefficient and 2 of K ₁ is equal to the terminal coupling coefficient of 3 and 2 between the terminals K _2, leading to terminal 1 coupled to the coupling the coupling current and the terminal pin 2 of 3 to the same terminal 2 of the coupling current, since this two coupling The currents are equal in magnitude and opposite in polarity, so the two coupling currents can cancel each other at the ground terminal 2. Furthermore, according to the above basic theory, in the present invention, no ground terminal is provided between the adjacent pairs of differential signal terminals to suppress the occurrence of the resonance frequency.

Please refer to FIG. 3A and FIG. 3B simultaneously. FIG. 3A is an exploded perspective view of a high-speed electrical connector assembly according to an embodiment of the present invention; and FIG. 3B is a high-speed embodiment according to the third embodiment of the present invention. An exploded view of another perspective of the electrical connector assembly. The high-speed electrical connector assembly of the embodiment comprises: a plug connector and a corresponding plug The socket connector and the socket connector of the present invention each include an insulative housing 10, 20 and a plurality of conductive terminal sets 30 secured to the insulative housings 10, 20, as shown in the third and third embodiments. The plurality of conductive terminal groups 30 and 40 have a plurality of differential signal terminal pairs that are not adjacent to each other and a single ground terminal that can correspond to each of the differential signal terminal pairs. The ground terminal is misaligned and disposed on the differential signal terminal pair. And maintaining an equidistant relationship with the individual terminals of the differential signal terminal pair along the length direction of the terminals, and there is no ground terminal between the pair of differential signal terminals that are not adjacent to each other. That is, in this embodiment, the plurality of conductive terminal sets 30, 40 of the plug connector and the socket connector each have a first pair of differential signal terminals 50, 50' and a second pair of differential signal terminals 60, 60' The first pair of differential signal terminals 50, 50' and the terminals of the second pair of differential signal terminals 60, 60' are respectively provided with a single first ground terminal 70, 70' and a single second terminal 80, 80', and the first pair of differential signal terminals 50, 50' and the first ground terminals 70, 70' are arranged in a misaligned manner, and the individual terminals of the first pair of differential signal terminals 50, 50' are The first ground terminals 70, 70' are disposed at equal distances on the insulative housings 10, 20, and the second pair of differential signal terminals 60, 60' and the second ground terminals 80, 80' are also arranged in a misaligned manner. The first pair of differential signal terminals 60, 60' are arranged equidistantly on the insulative housings 10, 20, and the first pair of differential signal terminals 50, 50' and the second pair of differential signal terminals 60, 60' are not adjacent to each other and have no grounding terminals.

Referring to a third C diagram and a third D diagram, the third C diagram is a first pair of differential signal terminals, a second pair of differential signal terminals, a first ground terminal, and a second connector of the plug connector according to an embodiment of the invention. FIG. 3 is a schematic diagram of a first pair of differential signal terminals, a second pair of differential signal terminals, a first ground terminal, and a second ground terminal of a socket connector according to an embodiment of the invention. In this embodiment, the plug a first pair of differential signal terminals 50, 50' of the connector and the plug connector, a second pair of differential signal terminals 60, 60', a first ground terminal 70, 70' and a second ground terminal 80, 80' There is a contact portion 1 and a soldering portion 2 for individually coupling to a circuit board 90, 91 for electrical contact purposes (to be exemplified below). The first pair of differential signal terminals 50, 50' are arranged in a misalignment with the first ground terminals 70, 70' and the first ground terminals 70, 70' are coupled to the first pair of differential signal terminals 50, 50' And maintaining an equidistant relationship with the individual terminals of the first pair of differential signal terminals 50, 50' along the terminal length direction of the first pair of differential signal terminals 50, 50', that is, the first pair of differences The contact portions 1 of the individual terminals of the signal terminals 50, 50' to the contact portions 1 of the first ground terminals 70, 70' are arranged equidistantly, and likewise, the first pair of differential signal terminals 50, 50' The welded portions 2 of the individual terminals to the welded portions 2 of the first ground terminals 70, 70' are also arranged equidistantly. Similarly, the individual terminals of the second pair of differential signal terminals 60, 60' to the second ground terminals 80, 80' are also arranged equidistantly, as described above, and are not described herein again.

Please refer to FIG. 4, FIG. 5A and FIG. 5B. FIG. 4 is a schematic diagram of a socket connector and a plug connector coupled to a circuit board according to an embodiment of the present invention; FIG. 5A and FIG. B is a schematic diagram of the circuit board of the fourth figure. The first pair of differential signal terminals 50, 50', the second pair of differential signal terminals 60, 60', the first ground terminals 70, 70' and the second ground terminals 80, 80' are respectively coupled to one On the circuit boards 90, 91, the circuit boards 90, 91 include a plurality of pairs of first differential contacts corresponding to the plurality of differential signal terminal pairs, wherein each pair of first electrical contacts of each pair of differential signal terminals A second electrical contact portion of a pair of grounding terminals is also disposed, and the distance between each of the first electrical contact portions and the second electrical contact portion is the same, and each of the two pairs of first electrical contacts There is no electrical contact between the parts that can be used as a grounding.

In this embodiment, the first pair of differential signal terminals 50, 50' and the second pair of differential signal terminals 60, 60' of the soldering portion 2 are individually coupled to a plurality of SMTs of a circuit board 90, 91. The contact pads 92, 92' are used to cooperate with the soldering portions 2 of the terminal pins of the high-speed electrical connector of the present invention; and the soldering portions 2 of the first ground terminals 70, 70' and the second ground terminals 80, 80' The plurality of perforated contacts 93, 93' are also individually coupled to a circuit board 90, 91 such that the perforated contacts 93, 93' of the first ground terminals 70, 70' are on the circuit boards 90, 91. Disposed between the SMT pads 92, 92' of the circuit boards 90, 91 corresponding to the first pair of differential signal terminals 50, 50', and arranged in a misaligned position, when the plug connector and the socket connector When the horizontal connector is inserted, the first pair of differential signal terminals 50 of the plug connector and the contact portion 1 of the second pair of differential signal terminals 60 correspond to the first pair of differential signal terminals 50' and the first connector of the socket connector. The contact portions 1 of the two pairs of differential signal terminals 60' are in contact connection, wherein each of the plug connector and the corresponding socket connector The distance between the pair of ground terminals than the relative distance between each differential signal terminal pair is short, as shown in the fourth FIG. In addition, the position of the differential signal terminal pair and the grounding terminal of the plug connector and the corresponding socket connector of the present invention may also be changed according to different products or different requirements, for example, the plug connector of the present invention and the corresponding connector The distance between each of the socket connectors is relatively longer than the distance between the pair of relatively differential signal terminals. This is common to those skilled in the art and can be understood and understood. It is illustrated and described in the text.

Please refer to FIG. 5A and FIG. 5B, the corresponding pair of differential signal terminals on the circuit boards 90 and 91 corresponding to the first ground terminals 70, 70'. 50, 50' of one of the SMT pads of the circuit board 90, 91 SMT The distance between the pads 92, 92' is L1, and the perforated contacts 93, 93' of the first ground terminals 70, 70' on the circuit boards 90, 91 correspond to the first pair of differential signal terminals 50, 50. The distance between the other SMT pads 92, 92' of the SMT pads of the circuit boards 90, 91 is L2, and the distance between L1 and L2 is the same. Similarly, the boards 90, 91 correspond to the second. The distance between the perforated contacts 93, 93' of the ground terminals 80, 80' and the SMT pads 92, 92' of the circuit boards 90, 91 corresponding to the second pair of differential signal terminals 60, 60' is the same as above. The details are not described herein.

In this embodiment, the distance between the first pair of differential signal terminals 50, 50' and the second pair of differential signal terminals 60, 60' is adjusted by the distance of the tolerable noise, and There is no grounding terminal for the pair of differential signal terminals that are not adjacent to reduce the generation of the resonance frequency.

Please refer to the sixth figure, which is a perspective view showing another embodiment of the socket connector in the third panel B. The structure of the present embodiment is the same as that of the third figure, except that the socket connector additionally adds a back cover 21 to cover most of the conductive terminal groups to increase the capacitance value and achieve better differential impedance matching.

Referring to the seventh figure, there is shown an exploded perspective view of a high speed connector assembly according to still another embodiment of the present invention. The high-speed electrical connector assembly 200 of the present invention comprises: a plug connector and a corresponding socket connector, each of the plug connector and the socket connector: an insulative housing 10', 20' and fixed to the insulative housing 10 ', 20' of the plurality of conductive terminal sets 30', 40', each of the conductive terminal sets 30', 40' has a first differential signal terminal pair 31, 41, a second differential signal terminal pair 32, 42 and Corresponding to a single ground terminal 33, 43 of the first differential signal terminal pair 31, 41 and the second differential signal terminal pair 32, 42, wherein each of the first differential signal terminal pairs 31, 41 and each The second differential signal terminal pairs 32 and 42 are arranged oppositely and symmetrically, and the ground terminals 33 and 43 are offset from each of the differential signal terminals and placed in each of the first differential signal terminal pairs 31. 41 and each of the second differential signal terminal pairs 32, 42 and maintain an equidistant relationship with each of the first differential signal terminal pairs 31, 41. Similarly, the ground terminals 33, 43 are also Each of the second differential signal terminal pairs 32, 42 maintains an equidistant relationship; and each pair of the first differential signal terminal pairs 31, 41 are not adjacent to each other and have no grounding terminal, and each The second differential signal terminal pair 32, 42 is not adjacent to each other and has no grounding terminal.

Please refer to FIG. 8A and FIG. 8B respectively, which are schematic diagrams showing the plurality of conductive end groups of the plug connector and the socket connector of the present invention. In this example, the first differential signal terminal pair 31, 41, the second differential signal terminal pair 32, 42 and the ground terminals 33, 43 of the plug connector have a contact portion 3 and a soldering portion 4, The soldering portion 3 is used to be individually coupled to a circuit board 90' for contact purposes. The first differential signal terminal pair 31 and the second differential signal terminal pair 32 are arranged oppositely and symmetrically, and the ground terminal 33 is disposed on the first differential signal terminal pair 31 and the second differential The position of the signal terminal pair 32 is opposite to the position of the first differential signal terminal 31 and is equidistant from the individual terminals of the first differential signal terminal pair 31, that is, The contact portions 3 of the individual terminals of the first differential signal terminal pair 31 and the contact portions 3 of the ground terminal 33 are arranged equidistantly. Similarly, the soldering portions 4 of the individual terminals of the first differential signal terminal pair 31 are The soldering portions 4 of the ground terminal 33 are also arranged at equal distances. Similarly, the ground terminal 33 is disposed offset from the second differential signal terminal 32 and maintains an equidistant relationship with the individual terminals of the second differential signal terminal pair 32, that is, the second differential signal terminal. The individual terminals of 32 are also arranged equidistantly to the ground terminal 33, as described above, and are not described herein again.

Similarly, the first differential signal terminal pair 41, the second differential signal terminal pair 42 and the ground terminal 43 of the socket connector also have a contact portion 3' and a soldering portion 4', the first difference The arrangement positions of the signal terminal pair 41, the second differential signal terminal pair 42 and the ground terminal 43 are the same as those of the plug connector, as described above, and will not be described herein.

In this embodiment, the contact portion 3 of the ground terminal 33 of the plug connector is a plate-shaped body, and the soldering portion 4 of the ground terminal 33 is protruded from one side of the plate-shaped body. The contact portion 3 of the grounding terminal 33 is along the length direction of the individual terminal of the first differential signal terminal pair 31 and the second differential signal terminal pair 32, and the first differential signal terminal pair 31 and the second differential signal. The individual terminals of the terminal pair 32 are each maintained in an equidistant relationship. Similarly, the structure of the ground terminal 43 of the socket connector is the same as the ground terminal 33 of the plug connector, and details are not described herein.

Please refer to the ninth figure, which is a schematic diagram of a socket connector and a plug connector coupled to a circuit board according to still another embodiment of the present invention. In the illustration, for convenience of explanation, only the plurality of conductive terminal sets of the plug connector and the receptacle connector are shown and the circuit board. In this embodiment, the first differential signal terminal pair 31, 41, the second differential signal terminal pair 32, 42 and the ground terminals 33, 43 are respectively coupled to a circuit board 90', 91' The circuit board 90', 91' includes a plurality of pairs of the first differential signal terminal pair 31, 41 and the second differential signal terminal pair 32, 42 respectively, the first electrical contact portion and the plurality of third electrical signals. a contact portion (refer to FIG. 10), wherein each of the first differential signal terminal pair and the second differential signal terminal pair is also misaligned between each of the first electrical contact portion 94 and the third electrical contact portion 95 A pair of second electrical contacts 96 of the grounding terminals 33, 43 are disposed, and the distance between each of the first electrical contacts 94 and the second electrical contacts 96 is the same, and each pair is third. The electrical contact portion 95 and the contact portion of the second electrical contact portion 96 The distances are the same; there is no electrical contact between the two pairs of first electrical contacts 94 and each of the two pairs of third electrical contacts 95 that can be used as grounding.

In this embodiment, the first differential signal terminal pair 31, 41 and the second differential signal terminal pair 32, 42 of the soldering portions 4, 4' are individually coupled to a circuit board 90', 91' a plurality of SMT contact pads (the first electrical contact portion 94 and the third electrical contact portion 95) to cooperate with the soldering portions 4, 4' of the terminal pins of the high-speed electrical connector of the present invention; and the grounding terminal 33, The soldering portions 4, 4' of the 43 are also individually coupled to a plurality of perforated contacts (second electrical contacts 96) of a circuit board 90', 91' such that the circuit boards 90', 91' are paired The via contacts (the second electrical contacts 96) of the ground terminals 33, 43 should be placed on the board 90 corresponding to the first differential signal terminal pair 31, 41 and the second differential signal terminal pair 32, 42. Between the SMT pads of the '91' (the first electrical contact portion 94 and the third electrical contact portion 95), and arranged in a misaligned manner, when the plug connector is vertically inserted into the socket connector, the plug connector The first differential signal terminal pair 31 and the second differential signal terminal pair 32 are in contact with the first differential signal terminal pair 41 and the second differential of the socket connector. The contact portion 3' of the signal terminal pair 42 is in contact connection, and the contact portion 3 of the ground terminal 33 of the plug connector is also in contact with the contact portion 3' of the ground terminal 43 of the receptacle connector. In addition, the contact connection manner of the contact portion 3 of the ground terminal 33 of the plug connector of the present invention and the contact portion 3' of the ground terminal 43 of the corresponding socket connector can be used for relative snapping or fastening by using the terminal structures. This is a general knowledge in the technical field that can be promoted and understood, so it is not illustrated and described herein.

Please refer to the tenth figure, which is a schematic diagram showing a circuit board to which a plug connector and a plug connector are coupled according to still another embodiment of the present invention. Only the plug is shown in the figure. Connect the connected circuit board. The SMT contact of the circuit board 90' coupled to the plug connector to the grounding terminal 33 (the second electrical contact portion 96) and the circuit board 90' corresponding to the first differential signal terminal pair 31 One of the pads of the SMT contact pad (first electrical contact portion 94) has a distance L1, and the perforated contact (second electrical contact portion 96) of the circuit board 90' corresponding to the ground terminal 33 corresponds to the first The distance of the other SMT contact pad (first electrical contact portion 94) of the SMT contact pad of the circuit board 90' of the differential signal terminal 31 is L2, the distance between L1 and L2 is the same, and the circuit board 90 is identical. 'One of the SMT contact pads of the SMT contact pad corresponding to the circuit board 90' corresponding to the second differential signal terminal pair 32 (the third corresponding contact portion of the corresponding ground terminal 33) (third) The distance of the electrical contact portion 95) is L3, and the perforated contact (second electrical contact portion 96) of the circuit board 90' corresponding to the ground terminal 33 is opposite to the circuit board 90' corresponding to the second differential signal terminal 32. The distance of the other SMT contact pad (third electrical contact 95) in the SMT contact pad is L4, which is the same distance as L4. The circuit board 91' to which the socket connector of the present embodiment is coupled is the same as the circuit board 90' to which the plug connector is coupled, and therefore is not illustrated and described herein.

In this embodiment, the distance between each pair of first differential signal terminals 31, 41 and the distance between each pair of second differential signal terminals 32, 42 is determined by the distance of the tolerable noise. Adjusted, and no grounding terminals 33, 43 are provided between each of the adjacent conductive terminal groups to reduce the generation of the resonance frequency.

When the socket connector and the plug connector of the present invention are horizontally inserted, a grounding terminal is disposed between the terminals of each pair of differential signal terminals, and the three terminals are arranged in a wrong position, and the grounding terminal is differentially connected with each pair. The respective terminals of the signal terminals are arranged equidistantly to solve The problem of crosstalk interference caused by the resonance frequency shifts the resonance frequency toward a higher frequency. As shown in FIG. 11, the special arrangement and structure of the conductive terminals of the electrical connector of the present invention enables the conventional electrical connection. At the resonant frequency of 3.6 GHz and 7.4 GHz, there are no crosstalk signals at the near end and the far end, so that the crosstalk interference signals are below -30 dB when the resonant frequency is 3.6 GHz and 7.4 GHz. It does solve the crosstalk problem caused by the conventional resonant frequency.

When the socket connector and the plug connector of the present invention are vertically inserted, a ground terminal is provided between the first differential signal terminal pair and the second differential signal terminal pair of each conductive terminal group, and five terminals are provided. The misaligned arrangement is arranged such that the first differential signal terminal pair is equidistantly arranged with the ground terminal, and the second differential signal terminal pair is equally arranged with the ground terminal to solve the crosstalk interference generated by the resonance frequency. The problem is that the resonance frequency is shifted toward a higher frequency. As shown in Fig. 12, the special arrangement and structure of the conductive terminals of the electrical connector of the present invention make the conventional electrical connector have a resonance frequency of 6.2 GHz, 11.2. At GHz, 15.4 GHz, and 17.8 GHz, there are no crosstalk signals at the near and far ends, so that the crosstalk signals are at 6.2 GHz, 11.2 GHz, 15.4 GHz, and 17.8 GHz. Below 30dB, it does solve the crosstalk problem caused by the conventional resonant frequency.

Various changes and modifications can be made without departing from the scope of the invention, and the invention is not limited by the description. Embodiments of the illustrated embodiments.

100‧‧‧High speed electrical connector assembly

10‧‧‧Insulated body

20‧‧‧Insulating body

30‧‧‧Electrical terminal group

40‧‧‧Electrical terminal group

50, 50' ‧ ‧ first pair of differential signal terminals

60, 60'‧‧‧ second pair of differential signal terminals

70, 70' ‧ ‧ first ground terminal

80, 80'‧‧‧Second ground terminal

Claims (10)

A high-speed electrical connector includes an insulative housing and a plurality of conductive terminal sets fixed to the insulative housing, the plurality of electrically conductive terminal sets having a plurality of differential signal terminal pairs that are not adjacent to each other and corresponding to each of the differential signal terminal pairs a single grounding terminal disposed offset between the pair of differential signal terminals and maintaining an equidistant relationship with the individual terminals of the pair of differential signal terminals along the length direction of the terminals, and the plurality of differentials that are not adjacent to each other There are no grounding terminals between the signal terminal pairs. The high-speed electrical connector of claim 1, wherein the plurality of conductive terminal groups further comprise a plurality of pairs of differential signal terminals disposed symmetrically with respect to the ground terminal and symmetrically coupled to the plurality of differential signal terminal pairs, each pair The plurality of differential signal terminals are not adjacent to each other and are not disposed between the plurality of differential signal terminals, the plurality of differential signal terminal pairs include a first differential signal terminal pair, and the plurality of differential signal terminals include a second a pair of differential signal terminals, the first differential signal terminal pair and the second differential signal terminal pair are oppositely arranged and symmetrically arranged, and the ground terminal is offset from each of the differential signal terminals by the first difference The pair of the signal terminal and the pair of the second differential signal are respectively in an equidistant relationship with the individual terminals of the first differential signal terminal pair and the individual terminals of the second differential signal terminal pair. The high-speed electrical connector of claim 2, wherein the terminal of the first differential signal terminal pair, the terminal of the second differential signal terminal pair, and the ground terminal each have a contact portion and a soldering portion. And the contact portion of the ground terminal is a plate-shaped body, and the welded portion of the ground terminal protrudes from one side of the plate-shaped body. A circuit board can be coupled to an electrical connector. The electrical connector includes an insulative housing and a plurality of conductive terminal sets that can be fixed to the insulative housing. The plurality of conductive terminal sets have a plurality of differential signal terminal pairs that are not adjacent to each other. And a single ground terminal corresponding to each of the differential signal terminal pairs, the grounding The terminal is misaligned between the pair of differential signal terminals and maintains an equidistant relationship with the individual terminals of the differential signal terminal pair along the length direction of the terminals, and the pair of differential signal terminals that are not adjacent to each other have no Ground terminal. The circuit board of claim 4, comprising a plurality of pairs of differential signal terminal pairs corresponding to the first electrical contact portion, wherein each pair of first electrical contacts of each pair of differential signal terminals A second electrical contact portion of the pair of grounding terminals is also disposed, and the distance between the second electrical contact portion and the contact portion of the pair of first electrical contacts is the same, and each of the first electrical contacts is There are no electrical contacts that can be used as grounding. The circuit board of claim 4, wherein the electrical connector further comprises a plurality of pairs of differential signal terminals, the plurality of pairs of differential signal terminals being opposite to the ground terminal and the plurality of differential signal terminals Symmetrically disposed, and each of the plurality of pairs of differential signal terminals are not adjacent to each other and no ground terminal is disposed therebetween, and the plurality of differential signal terminal pairs include a first differential signal terminal pair, and the complex pair is poor The signal terminal includes a second differential signal terminal pair, the first differential signal terminal pair and the second differential signal terminal pair are oppositely arranged and symmetrically arranged, and the ground terminal is connected to each differential signal terminal The misalignment is disposed between the pair of the first differential signal terminal and the pair of the second differential signal terminal, and the individual terminals of the first differential signal terminal pair and the second differential signal terminal pair respectively Maintaining an equidistant relationship, the circuit board includes a plurality of pairs of the first differential signal terminal pair and the second differential signal terminal pair, respectively, the first electrical contact portion and the plurality of third electrical contact portions And a second electrical contact portion corresponding to the grounding terminal, each of the first electrical contact portion and the second electrical contact portion having the same distance, and each of the third contact portion and the second portion Each contact portion of the electrical contact portion has the same distance, and there is no electrical contact between the first electrical contact portion and each of the second electrical contact portions for grounding. unit. A high-speed electrical connector assembly comprising a plug connector and a corresponding receptacle connector, wherein the plug connector and the corresponding receptacle connector each comprise an insulative housing and a plurality of the same can be attached to the insulative housing a conductive terminal group having a plurality of differential signal terminal pairs that are not adjacent to each other and a single ground terminal that can correspond to each of the differential signal terminal pairs, wherein the ground terminal is misaligned and disposed between the pair of differential signal terminals And maintaining an equidistant relationship with the individual terminals of the pair of differential signal terminals along the length direction of the terminals, and there is no grounding terminal between the pair of differential signal terminals that are not adjacent to each other. The high-speed electrical connector assembly of claim 7, wherein the terminal of each of the differential signal terminal pairs and the corresponding ground terminal have a contact portion and a soldering portion for fixing to a circuit board. The circuit board includes a plurality of pairs of differential signal terminal pairs corresponding to the first electrical contact portion, and a pair of corresponding ground terminals are disposed corresponding to each pair of the first electrical contact portions of each of the differential signal terminal pairs A second electrical contact portion is the same distance from each of the contact portions of the first electrical contact portion. The high-speed electrical connector assembly of claim 8, wherein the plug connector and the corresponding receptacle connector each further comprise a plurality of pairs of differential signal terminals, the plurality of pairs of differential signal terminals being opposite to each other The grounding terminal is symmetrically disposed with the pair of differential signal terminals, and each of the plurality of differential signal terminals is disposed adjacent to each other without any ground terminal, and the plurality of differential signal terminal pairs include a first differential signal terminal pair, wherein the plurality of differential signal terminals comprise a second differential signal terminal pair, the first differential signal terminal pair and the second differential signal terminal are oppositely arranged and symmetric Arranging, and the grounding terminal is disposed offset from each of the first differential signal terminal pair and the second differential signal terminal pair with each of the differential signal terminals. And the individual terminals of the first differential signal terminal pair and the individual terminals of the second differential signal terminal pair are maintained in an equidistant relationship. The high-speed electrical connector assembly according to claim 9 is fixed to a circuit board, and the circuit board includes a plurality of pairs corresponding to the first differential signal terminal pair and the second differential signal terminal pair respectively. An electrical contact portion and a plurality of third electrical contacts and a second electrical contact portion corresponding to the ground terminal, each of the first electrical contact portion and the second electrical contact portion are at the same distance, and the distance Each pair of third contact portions is also at the same distance from each contact portion of the second electrical contact portion, and there is no connection between the first electrical contact portion and each of the second electrical contact portions for grounding. Electrical contact.