High-frequency signal electric connector

Abstract

A high-frequency signal electrical connector includes a circuit board, a plurality of cables, a first insulating structure, a second insulating structure, and a housing. The circuit board comprises a circuit board body, a plurality of contact conductors and a plurality of bonding pads, the circuit board body is provided with a first end and a second end which are oppositely arranged, the contact conductors are arranged on the surface, close to the first end, of the circuit board body, and the bonding pads are arranged on the surface, close to the second end, of the circuit board body. The cable is combined with the bonding pad through the second end of the circuit board body. The first insulation structure is combined with the circuit board and the cable. The second insulating structure is coupled to the first insulating structure and the cable. The shell is combined with the first insulation structure and the second insulation structure, the shell is provided with a butt joint opening, a butt joint space adjacent to the butt joint opening, a containing space connected with the butt joint space and a cable extending opening adjacent to the containing space, the first end of the circuit board and the contact conductor are located in the butt joint space, and the second end of the circuit board and the bonding pad are located in the containing space; and the first insulating structure and the second insulating structure are positioned in the accommodating space.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a high-frequency signal electric connector. Background Art

[0002] The MCIO electrical connector is a technology that combines multiple physical channels into a high-speed data transmission interface, achieving high-speed data transmission in a parallel transmission manner. Figure 1 is a perspective view of a conventional MCIO electrical connector. Figure 2 yes Figure 1 A cross-sectional view of the MCIO electrical connector, Figure 3 yes Figure 1 A top view of the circuit board of the MCIO electrical connector. As shown, the MCIO electrical connector comprises a circuit board 2, a front housing 3, and a rear housing 4. Multiple cables 5 extend from the rear end of the MCIO electrical connector. The interior of the front housing 3 includes an upper upright wall 3A and a lower upright wall 3B. The circuit board 2 is held in place by the upper and lower upright walls 3A and 3B, respectively. The rear housing 4, in conjunction with the rear end of the front housing 3, clamps the cables 5 in place.

[0003] Circuit board 2 has a front end 2A and a back end 2B. Contact conductors (gold fingers) 2C are provided on the surface of circuit board 2 near front end 2A, and solder pads 2D are provided on the surface of circuit board 2 near back end 2B. Circuit board 2 internally has wiring connecting contact conductors 2C and solder pads 2D. The wires of cable 5 are soldered to solder pads 2D. When the MCIO electrical connector mates with the mating electrical connector on the main circuit board, electronic signals are transmitted from the main circuit board through contact conductors 2C and wiring on circuit board 2 to solder pads 2D, and then transmitted via cable 5 to other electronic modules.

[0004] Because the MCIO electrical connector uses high-frequency signals to achieve high-speed data transmission, the length of the traces within the circuit board 2 affects the transmission quality of the high-frequency signals. Excessive trace length can result in a loss of high-frequency signal strength. Therefore, to improve high-frequency signal transmission characteristics, current research and development efforts are focused on shortening the distance from the front end 2A to the rear end 2B of the circuit board 2. However, when the length of the circuit board 2 is shortened, the existing MCIO electrical connector structure, where the front housing 3 holds the circuit board 2 and the front and rear housings 3 and 4 hold the positioning cable 5, cannot reliably maintain the positioning of the circuit board 2 and the cable 5. Utility Model Content

[0005] The purpose of the utility model is to provide a high-frequency signal electrical connector, which is used to solve the problem in the prior art that the housing structure cannot reliably keep the circuit board in position when the length of the circuit board is shortened.

[0006] In order to solve the above technical problems, the present invention provides a high-frequency signal electrical connector:

[0007] A high-frequency signal electrical connector according to an embodiment of the present invention includes a circuit board, a plurality of cables, a first insulating structure, a second insulating structure, and a housing. The circuit board includes a circuit board body, a plurality of contact conductors, and a plurality of solder pads. The circuit board body has a first end and a second end disposed opposite the first end. The plurality of contact conductors are disposed on a surface of the circuit board body proximate the first end, and the plurality of solder pads are disposed on a surface of the circuit board body proximate the second end. The plurality of cables are coupled to the plurality of solder pads via the second end of the circuit board body. The first insulating structure is coupled to the circuit board and the plurality of cables. The second insulating structure is coupled to the first insulating structure and the plurality of cables. The housing is coupled to the first insulating structure and the second insulating structure. The housing has a pair of interfaces, a docking space adjacent to the docking interface, an accommodating space connected to the docking space, and a cable extension opening adjacent to the accommodating space. The first end of the circuit board and the plurality of contact conductors are located in the docking space, the second end of the circuit board and the plurality of solder pads are located in the accommodating space, and the first insulating structure and the second insulating structure are located in the accommodating space. The plurality of cables extend into the accommodating space through the cable extension opening, and a hand electrical connector is inserted into the docking space through the docking interface.

[0008] Optionally, the first insulating structure covers the second end of the circuit board and the welding point between the wire of the cable and the pad.

[0009] Optionally, the second insulating structure covers an end of the first insulating structure close to the cable.

[0010] Optionally, the shell has an upright wall, which is arranged on the inner surface of the shell, and the upright wall abuts against the first insulating structure at the connection between the docking space and the accommodating space.

[0011] Optionally, the first insulating structure includes a first body and an extension portion extending from the first body to the docking interface, the first body covers the second end of the circuit board and the welding point between the wire of the cable and the solder pad, the extension portion abuts the circuit board and extends to the connection between the docking space and the accommodating space, and the upright wall abuts the extension portion.

[0012] Optionally, the first insulating structure further has a plurality of coupling bumps, the plurality of coupling bumps are respectively arranged on the surface of the first body, and the plurality of coupling bumps are coupled to the second insulating structure.

[0013] Optionally, the second insulating structure includes a second body and a closing portion vertically arranged to the second body, the second body covers the first body, the closing portion closes the cable extension opening of the shell, and a plurality of coupling protrusions are coupled to the second body.

[0014] Optionally, the second body has a snap-fit ​​groove, a stop protrusion and a limiting protrusion, the snap-fit ​​groove extends in a direction perpendicular to the docking interface, the shell also has a snap-fit ​​rib, a stop recess and a limiting recess, the snap-fit ​​rib is combined with the snap-fit ​​groove, so that the shell is limited in the first direction relative to the second insulating structure, the stop protrusion abuts against the stop recess, so that the cable extension port of the shell is flush with the closed portion of the second insulating structure, the limiting protrusion is snap-fitted into the limiting recess, so that the shell is limited in the second direction relative to the second insulating structure, the side wall of the shell abuts against the side wall of the second body, so that the shell is limited in the third direction relative to the second insulating structure, and the first direction, the second direction and the third direction are orthogonal to each other.

[0015] Optionally, it further includes a locking member and a pulling member, the locking member is arranged on the top surface of the shell, the pulling member is combined with the locking member, the second insulating structure has a through slot, the pulling member passes through the through slot and extends parallel to the cable.

[0016] Optionally, the length from the first end to the second end of the circuit board is 6.3 mm to 6.7 mm.

[0017] The high-frequency signal electrical connector of the present invention is coupled to a circuit board and multiple cables via a first insulating structure, and a second insulating structure coupled to the first insulating structure and multiple cables. This allows the circuit board and cables to be held in place by the first and second insulating structures, which are clamped and fixed layer by layer. Simultaneously, the upright walls of the housing abut against the first insulating structure, thereby reducing the thickness of the housing. Even when the circuit board is shortened, the circuit board and cables can be reliably held in place, and the housing can be securely assembled to the first and second insulating structures, thereby achieving a high-frequency signal electrical connector with a shortened circuit board while maintaining structural reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 is a perspective view of a prior art MCIO electrical connector;

[0020] Figure 2 yes Figure 1 A cross-sectional view of the MCIO electrical connector;

[0021] Figure 3 yes Figure 1 A top view of a circuit board of the MCIO electrical connector;

[0022] Figure 4 This is a three-dimensional diagram of a high-frequency signal electrical connector according to an embodiment of the present invention;

[0023] Figure 5 yes Figure 4 A top view of a circuit board of a high-frequency signal electrical connector;

[0024] Figure 6 yes Figure 4 A three-dimensional view of the circuit board of the high-frequency signal electrical connector from another perspective;

[0025] Figure 7 yes Figure 6 A three-dimensional exploded view of a high-frequency signal electrical connector;

[0026] Figure 8 yes Figure 7 A three-dimensional exploded view of the high-frequency signal electrical connector from another perspective;

[0027] Figure 9 It is along Figure 4 Cross-sectional view of line AA;

[0028] Figure 10 It is along Figure 4 Cross-sectional view of line BB;

[0029] Figure 11 and Figure 12 This is a three-dimensional diagram of a first insulating structure of a high-frequency signal electrical connector according to an embodiment of the present invention combined with a circuit board and a cable;

[0030] Figure 13 and Figure 14 This is a perspective view of a high-frequency signal electrical connector according to an embodiment of the present invention, in which a second insulating structure is combined with a first insulating structure;

[0031] Figure 15 and Figure 16 This is a perspective view of a high-frequency signal electrical connector housing assembled with a first insulating structure and a second insulating structure according to an embodiment of the present invention;

[0032] Figure 17 and Figure 18 This is a three-dimensional diagram of a locking member and a pull-belt member of a high-frequency signal electrical connector according to an embodiment of the present invention assembled to a housing. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 ,in Figure 4 This is a three-dimensional diagram of a high-frequency signal electrical connector according to an embodiment of the present invention. Figure 5 yes Figure 4 A top view of a circuit board of a high-frequency signal electrical connector, Figure 6 yes Figure 4 A three-dimensional diagram of the circuit board of the high-frequency signal electrical connector from another perspective, Figure 7 yes Figure 6 The three-dimensional exploded view of the high-frequency signal electrical connector, Figure 8 yes Figure 7 As shown in the figure, the high-frequency signal electrical connector 1 of this embodiment includes a circuit board 10, multiple cables 20, a first insulation structure 30, a second insulation structure 40, a housing 50, a locking member 60, and a pull member 70.

[0035] like Figure 5 As shown, the circuit board 10 includes a circuit board body 11, a plurality of contact conductors 12 and a plurality of solder pads 13. The circuit board body 11 has a first end 111 and a second end 112 arranged opposite to the first end 111. The plurality of contact conductors 12 are arranged on the surface of the circuit board body 11 close to the first end 111. The contact conductors 12 of this embodiment are respectively arranged on the upper surface and the lower surface of the circuit board body 11. The plurality of contact conductors 12 include a plurality of differential signal pair conductors 121 and a grounding conductor 122 arranged between adjacent differential signal pair conductors 121. The length of the grounding conductor 122 is greater than the length of the differential signal pair conductors 121. The grounding conductor 122 can play an electromagnetic shielding role for the adjacent differential signal pair conductors 121. A plurality of solder pads 13 are arranged on the surface of the circuit board body 11 close to the second end 112. The plurality of solder pads 13 of this embodiment are respectively arranged on the upper surface and the lower surface of the circuit board body 11. The contact conductors 12 and the solder pads 13 are electrically connected by the circuit of the circuit board body 11. As shown Figure 7 and Figure 8 As shown, the wires of the multiple cables 20 pass through the second end 112 of the circuit board body 11 and are respectively soldered to the multiple pads 13 , so that the contact conductors 12 and the cables 20 are electrically connected through the lines and the pads 13 .

[0036] In this embodiment, the length from the first end 111 to the second end 112 of the circuit board body 11 is in the range of 6.3 mm to 6.7 mm. Preferably, the length from the first end 111 to the second end 112 is 6.5 mm. Figure 5 The length from the first end 111 to the second end 112 of the circuit board body 11 is Figure 3The length from the front end 2A to the rear end 2B of the circuit board 2 of the prior art is significantly shortened, so that the length of the line connecting the contact conductor 12 and the pad 13 is also shortened, thereby achieving the purpose of reducing high-frequency signal loss.

[0037] See also Figure 9 and Figure 10 ,in Figure 9 It is along Figure 1 The cross-sectional view of line AA, Figure 10 It is along Figure 1 The first insulating structure 30 is coupled to the circuit board 10 and the plurality of cables 20. The second insulating structure 40 is coupled to the first insulating structure 30 and the plurality of cables 20. The housing 50 is coupled to the first insulating structure 30 and the second insulating structure 40.

[0038] like Figure 9 As shown, the housing 50 has a pair of interfaces 51, a docking space 52 adjacent to the docking interface 51, an accommodating space 53 connected to the docking space 52, and a cable extension opening 54 adjacent to the accommodating space 53. The first end 111 of the circuit board body 11 of the circuit board 10 and the plurality of contact conductors 12 are located in the docking space 52, the second end 112 of the circuit board body 11 of the circuit board 10 and the plurality of solder pads 13 are located in the accommodating space 53, and the first insulating structure 30 and the second insulating structure 40 are located in the accommodating space 53. The plurality of cables 20 extend into the accommodating space 53 through the cable extension opening 54. The counterpart electrical connector (receptacle electrical connector) is inserted into the docking space 52 through the docking interface 51. The terminals of the counterpart electrical connector contact the plurality of contact conductors 12, so that electronic signals (high-frequency signals) enter the cables 20 from the terminals of the counterpart electrical connector through the contact conductors 12, the lines on the circuit board body 11, and the solder pads 13, thereby transmitting signals. The inner side of the housing 40 has an upright wall 55 that divides the interior of the housing 50 into the aforementioned mating space 52 and the accommodating space 53. The upright wall 55 has an opening 551, through which the circuit board body 11 of the circuit board 10 passes. Because the mating space 52 is used to mate with a mating connector, the dimensions of both the mating space 52 and the portion of the circuit board body 11 of the circuit board 10 disposed within the mating space 52 must conform to specifications.

[0039] See also Figure 11 and Figure 12 , which is a three-dimensional diagram of the first insulating structure of the high-frequency signal electrical connector of this embodiment being combined with the circuit board and the cable. The circuit board 10 and the cable 20 soldered to the circuit board 10 are formed into the first insulating structure 30 by the insert molding process. Please refer to Figure 9The first insulating structure 30 includes a first body 31 and an extension portion 32 extending from the first body 31 toward the docking port 41. The first body 31 covers the second end 112 of the circuit board body 11 of the circuit board 10 and the soldering point between the wires of the cable 20 and the pads 13. This not only strengthens the positioning of the circuit board 10 and the cable 20, but also protects the soldering point between the wires of the cable 20 and the pads 13. The extension portion 32 abuts the upper and lower surfaces of the circuit board body 11 of the circuit board 10 and extends to the connection between the docking space 42 and the accommodating space 43. The first insulating structure 30 also has a plurality of coupling protrusions 33, which are disposed on surfaces of the first body 31, such as the upper surface, lower surface, and two side surfaces.

[0040] See also Figure 13 and Figure 14 , which is a perspective view of the second insulating structure of the high-frequency signal electrical connector of this embodiment being combined with the first insulating structure. The first insulating structure 30, the circuit board 10 and the cable 20 are assembled by overmolding to form the second insulating structure 40. Please refer to Figure 9 and Figure 10 The second insulating structure 40 includes a second body 41 and a closing portion 42 arranged perpendicular to the second body 41. The second body 41 covers the first body 31. Since the surface of the first body 31 has a plurality of coupling protrusions 33, the coupling protrusions 33 engage with the second body 41 to strengthen the coupling between the second insulating structure 40 and the first insulating structure 30. The closing portion 42 is located at the rear end of the second body 41 and is arranged perpendicular to the second body 41. The closing portion 42 closes the cable extension opening 54 of the housing 50. The extension portion 32 of the first insulating structure 30 protrudes from the front of the second body 41. The second body 41 has a coupling groove 411 and a stop protrusion 412 on both sides, and a limiting protrusion 413 on the bottom surface of the second body 41. The coupling groove 411 extends in a direction perpendicular to the docking port 51. In addition, the top surface of the second body 41 has a coupling recess 414, and a through groove 43 is provided at the connection between the second body 41 and the closing portion 42.

[0041] See also Figure 15 and Figure 16 , which is a three-dimensional diagram of the high-frequency signal electrical connector housing assembled with the first insulating structure and the second insulating structure of this embodiment. The housing 50 has a locking rib 56, a stopper recess 57 and a limit recess 58, please refer to Figure 6The housing 50 includes engaging ribs 56 disposed on both inner surfaces of the housing 50, stop recesses 57 disposed at the edges of the cable extension opening 54 of the housing 50, and a limiting recess 58 formed at the bottom of the housing 50. The engaging ribs 56 engage with the engaging grooves 411, limiting the housing 50 relative to the second insulating structure 40 in the first direction L1. The stop protrusions 413 abut against the stop recesses 57, aligning the cable extension opening 54 of the housing 50 with the closed portion 42 of the second insulating structure 40. The limiting protrusions 413 engage with the limiting recesses 58, limiting the housing 50 relative to the second insulating structure 40 in the second direction L2. The sidewalls of the housing 50 abut against the sidewalls of the second body 41, limiting the housing 50 relative to the second insulating structure 40 in the third direction L3. The first direction L1, the second direction L2, and the third direction L3 are orthogonal to each other. When the housing 50 is assembled to the second insulating structure 40 , the edge of the opening 551 of the upright wall 55 abuts against the extending portion 32 . Such a structure can reduce the height of the upright wall 55 of the housing 50 .

[0042] See also Figure 17 and Figure 18 , a three-dimensional view of the locking member and the pull member of the high-frequency signal electrical connector of this embodiment assembled to the housing. The top surface of the housing 50 has a mounting rod 59, the locking member 60 is arranged on the top surface of the housing 50, and the pull member 70 is arranged on the mounting rod 59 and combined with the locking member 60. The locking member 60 enables the high-frequency signal electrical connector 1 of this embodiment to be locked to the opponent electrical connector after docking with the opponent electrical connector. The pull member 70 facilitates the user to apply force to the pull member 70 from a distance to release the locking state of the locking member 60 from the opponent electrical connector. The pull member 70 extends through the slot of the second insulating structure 40 and is parallel to the cable 20.

[0043] According to the SDD21 parameters of the near-end crosstalk specification, when the signal frequency is 8 GHz, the insertion loss specification value is -4 dB, when the signal frequency is 16 GHz, the insertion loss specification value is -7 dB, and when the signal frequency is 24 GHz, the insertion loss specification value is -14 dB. The insertion loss data for cable lengths of 500 mm, 750 mm, and 1000 mm are shown in the following table:

[0044]

[0045] The high-frequency signal electrical connector of the present invention indeed complies with the near-end crosstalk specification.

[0046] The high-frequency signal electrical connector of the present invention is coupled to a circuit board and multiple cables via a first insulating structure, and a second insulating structure coupled to the first insulating structure and multiple cables. This allows the circuit board and cables to be held in place by the first and second insulating structures, which are clamped and fixed layer by layer. Simultaneously, the upright walls of the housing abut against the first insulating structure, thereby reducing the thickness of the housing. Even when the circuit board is shortened, the circuit board and cables can be reliably held in place, and the housing can be securely assembled to the first and second insulating structures, thereby achieving a high-frequency signal electrical connector with a shortened circuit board while maintaining structural reliability.

[0047] It should be noted that, in the present invention, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0048] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A high-frequency signal electrical connector, characterized in that: include: A circuit board, comprising a circuit board body, a plurality of contact conductors and a plurality of pads, wherein the circuit board body has a first end and a second end arranged opposite to the first end, the plurality of contact conductors are arranged on a surface of the circuit board body close to the first end, and the plurality of pads are arranged on a surface of the circuit board body close to the second end; a plurality of cables, connected to the plurality of pads through the second end of the circuit board body; A first insulating structure, which is combined with the circuit board and the plurality of cables; a second insulating structure, which is combined with the first insulating structure and the plurality of cables; A shell body is combined with the first insulating structure and the second insulating structure, the shell body has a pair of interfaces, a docking space adjacent to the docking interface, a accommodating space connected to the docking space and a cable extension port adjacent to the accommodating space, the first end of the circuit board and the plurality of contact conductors are located in the docking space, the second end of the circuit board and the plurality of solder pads are located in the accommodating space, and the first insulating structure and the second insulating structure are located in the accommodating space, the plurality of cables extend into the accommodating space through the cable extension port, and a hand electric connector is inserted into the docking space through the docking interface.

2. The high-frequency signal electrical connector according to claim 1, characterized in that: The first insulating structure covers the second end of the circuit board and a welding point between the wire of the cable and the pad.

3. The high-frequency signal electrical connector according to claim 2, characterized in that: The second insulating structure covers an end of the first insulating structure close to the cable.

4. The high-frequency signal electrical connector according to claim 1, characterized in that: The shell has an upright wall, the upright wall is arranged on the inner surface of the shell, and the upright wall abuts against the first insulating structure at the connection between the docking space and the accommodating space.

5. The high-frequency signal electrical connector according to claim 4, characterized in that: The first insulating structure includes a first body and an extension portion extending from the first body toward the docking port, the first body covers the second end of the circuit board and the welding point between the wire of the cable and the pad, the extension portion abuts against the circuit board and extends to the connection between the docking space and the accommodating space, and the upright wall abuts against the extension portion.

6. The high-frequency signal electrical connector according to claim 5, characterized in that: The first insulating structure further has a plurality of combining bumps, which are respectively arranged on the surface of the first body and combined with the second insulating structure.

7. The high-frequency signal electrical connector according to claim 6, characterized in that: The second insulating structure includes a second body and a closing portion vertically arranged with respect to the second body, the second body covers the first body, the closing portion closes the cable extension opening of the shell, and the plurality of combining protrusions are combined with the second body.

8. The high-frequency signal electrical connector according to claim 7, characterized in that: The second body has a snap-fit ​​groove, a stop protrusion and a limiting protrusion, and the snap-fit ​​groove extends in a direction perpendicular to the docking interface. The shell also has a snap-fit ​​rib, a stop recess and a limiting recess. The snap-fit ​​rib is combined with the snap-fit ​​groove, so that the shell is limited in a first direction relative to the second insulating structure, the stop protrusion abuts against the stop recess, so that the cable extension port of the shell is flush with the closed portion of the second insulating structure, the limiting protrusion is snap-fitted with the limiting recess, so that the shell is limited in a second direction relative to the second insulating structure, and the side wall of the shell abuts against the side wall of the second body, so that the shell is limited in a third direction relative to the second insulating structure, and the first direction, the second direction and the third direction are orthogonal to each other.

9. The high-frequency signal electrical connector according to claim 1, characterized in that: It also includes a locking member and a drawstring member, wherein the locking member is arranged on the top surface of the shell, the drawstring member is combined with the locking member, the second insulating structure has a through slot, the drawstring member passes through the through slot and extends parallel to the cable.

10. The high-frequency signal electrical connector according to claim 1, characterized in that: The length from the first end to the second end of the circuit board is 6.3 mm to 6.7 mm.

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