Conductive cable, connection device and connection assembly

Abstract

The application provides a conductive cable, a connecting device and a connecting assembly. The conductive cable is used for electrically connecting a ground pad of a substrate through a conductive seat. The conductive cable comprises a cable unit, a signal terminal, a ground shielding member and an insulating plastic packaging assembly. The cable unit comprises a signal wire, a cable covering body wrapped around the signal wire and a conductive copper foil wrapped around the cable covering body. Part of the signal wire is exposed to the periphery of the cable covering body. The signal terminal is in abutment with the signal wire exposed to the periphery of the cable covering body. The ground shielding member is in abutment with the conductive copper foil. The insulating plastic packaging assembly is at least respectively packaged at the abutment positions of the ground shielding member and the conductive copper foil and the abutment positions of the signal terminal and the signal wire. Part of the signal terminal and part of the ground shielding member are exposed to the insulating plastic packaging assembly. Compared with the abutment mode of the connecting position of the traditional cable assembly and the circuit board through the terminal, the conductive cable and the substrate can reliably transmit signals.

Description

Technical Field

[0001] The present invention relates to the technical field of conductive connections, and in particular to a conductive cable, a connecting device and a connecting assembly. Background Art

[0002] Cable assemblies connect electrically to circuit boards (PCBs), enabling signal transmission between the two. The connection between the cable assembly and the PCB requires grounding to achieve closed-loop signal transmission. However, grounding at the connection between the cable assembly and the PCB, achieved through abutting terminals, presents a problem of poor grounding reliability and, in other words, low tolerance. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a reliably grounded conductive cable, a connecting device and a connecting assembly.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] A conductive cable, used for electrically connecting to a ground plane of a substrate through a conductive seat, the conductive cable comprising:

[0006] A cable monomer, comprising a signal line, a cable sheath wrapped around the signal line, and a conductive copper foil wrapped around the cable sheath, wherein a portion of the signal line is exposed outside the cable sheath;

[0007] a signal terminal abutting against the signal line exposed at the periphery of the cable sheath;

[0008] a ground shielding member abutting against the conductive copper foil;

[0009] An insulating plastic-coated component is provided, wherein the insulating plastic-coated component is at least respectively coated at the abutment area between the grounding shield and the conductive copper foil, and at the abutment area between the signal terminal and the signal line. Portions of the signal terminal and the grounding shield are exposed from the insulating plastic-coated component. The portion of the signal terminal exposed from the insulating plastic-coated component is used to elastically abut against the signal contact piece of the substrate. The portion of the grounding shield exposed from the insulating plastic-coated component is used to be connected to the conductive seat.

[0010] In one embodiment, the signal terminal and the signal line are welded at their abutting points.

[0011] In one embodiment, the ground shielding member is formed with an open window, and the welding point between the signal terminal and the signal line is arranged corresponding to the open window.

[0012] In one embodiment, the insulating overmolded component is partially molded between the ground shield and the signal terminal.

[0013] In one embodiment, a first hollow groove is formed in a portion of the insulating overmolded component adjacent to the bare window, and the first hollow groove is arranged corresponding to the bare window.

[0014] A connecting device includes a conductive seat and the conductive cable described in any of the above embodiments, wherein the conductive seat is used to be electrically connected to the grounding surface of the substrate, and the portion of the grounding shielding member exposed from the insulating plastic-coated component is connected to the conductive seat.

[0015] In one embodiment, the conductive seat is provided with a plug-in slot, the conductive cable is plugged into the plug-in slot, and the portion of the grounding shielding element exposed from the insulating plastic-coated component abuts against an inner wall of the plug-in slot.

[0016] In one embodiment, the connecting device further comprises a conductive spring, the conductive spring is connected to the conductive seat, and the conductive spring is used to abut against the ground plane of the substrate; and / or,

[0017] The conductive seat is further provided with a connecting groove communicated with the plug-in groove, and the grounding shielding component is provided with a limiting portion, which is snapped into the connecting groove.

[0018] In one embodiment, the connecting device further includes a conductive spring, the conductive spring is connected to the conductive seat, and the conductive spring is used to be soldered to the ground plane of the substrate.

[0019] A connection assembly includes a substrate and a connection device as described in any of the above embodiments, wherein the substrate is provided with a signal contact piece and a ground plane piece, the portion of the signal terminal exposed from the insulating plastic-coated component elastically abuts against the signal contact piece, and the conductive spring piece is electrically connected to the ground plane piece.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] The above-mentioned conductive cable realizes signal transmission because the signal terminal abuts against the signal line exposed on the periphery of the cable sheath, and because the grounding shield abuts against the conductive copper foil, and the insulating plastic-coated component is at least respectively coated at the abutment point between the grounding shield and the conductive copper foil and the abutment point between the signal terminal and the signal line, part of the signal terminal and part of the grounding shield are both exposed to the insulating plastic-coated component, and the part of the signal terminal exposed to the insulating plastic-coated component elastically abuts against the signal contact piece of the substrate, so that the signal line is conductive through the signal terminal and the signal contact piece, the conductive copper foil is electrically connected to the conductive seat through the grounding shield, and the conductive seat is electrically connected to the grounding surface. Compared with the traditional method of connecting the cable assembly and the circuit board through the abutment of the terminal, it can realize reliable signal transmission between the conductive cable and the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 Schematic diagram of the structure of a connection assembly according to one embodiment;

[0024] Figure 2 for Figure 1 A structural schematic diagram of the connection assembly from another perspective;

[0025] Figure 3 for Figure 2 A sectional view of the connection assembly taken along line AA is shown;

[0026] Figure 4 for Figure 3 A partial enlarged schematic diagram of the connection assembly shown;

[0027] Figure 5 for Figure 4 A partial enlarged schematic diagram of the connection assembly shown;

[0028] Figure 6 for Figure 1 An exploded schematic diagram of another perspective of the connection assembly shown;

[0029] Figure 7 for Figure 6 An enlarged schematic diagram of point B of the connection assembly is shown;

[0030] Figure 8 for Figure 1 A schematic structural diagram of a conductive cable of a connecting device of the connecting assembly shown;

[0031] Figure 8a for Figure 8 A schematic diagram of a partially enlarged structure of the conductive cable shown;

[0032] Figure 9 for Figure 8a An exploded schematic diagram of the conductive cable shown;

[0033] Figure 10 for Figure 8a A schematic structural diagram of the conductive cable from another perspective;

[0034] Figure 11 for Figure 10 A schematic diagram of a partial structure of the conductive cable shown;

[0035] Figure 12 for Figure 7 Schematic diagram of the structure of the conductive seat of the connecting device of the connecting assembly shown. DETAILED DESCRIPTION

[0036] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] The present application provides a conductive cable for electrically connecting to a ground plane of a substrate through a conductive seat, the conductive cable comprising a cable unit, a signal terminal, a ground shield and an insulating plastic-coated assembly, the cable unit comprising a signal line, a cable sheath wrapped around the signal line, and a conductive copper foil wrapped around the cable sheath, wherein a portion of the signal line is exposed outside the cable sheath; the signal terminal abuts the signal line exposed outside the cable sheath; the ground shield abuts the conductive copper foil; the insulating plastic-coated assembly is at least plastic-coated at the abutment between the ground shield and the conductive copper foil and at the abutment between the signal terminal and the signal line, portions of the signal terminal and the ground shield are both exposed outside the insulating plastic-coated assembly, the portion of the signal terminal exposed outside the insulating plastic-coated assembly is used to elastically abut against the signal contact piece of the substrate, and the portion of the ground shield exposed outside the insulating plastic-coated assembly is used to connect to the conductive seat.

[0040] The above-mentioned conductive cable realizes signal transmission because the signal terminal abuts against the signal line exposed on the periphery of the cable sheath, and because the grounding shield abuts against the conductive copper foil, and the insulating plastic-coated component is at least respectively coated at the abutment point between the grounding shield and the conductive copper foil and the abutment point between the signal terminal and the signal line, part of the signal terminal and part of the grounding shield are both exposed to the insulating plastic-coated component, and the part of the signal terminal exposed to the insulating plastic-coated component elastically abuts against the signal contact piece of the substrate, so that the signal line is conductive through the signal terminal and the signal contact piece, the conductive copper foil is electrically connected to the conductive seat through the grounding shield, and the conductive seat is electrically connected to the grounding surface. Compared with the traditional method of connecting the cable assembly and the circuit board through the abutment of the terminal, it can realize reliable signal transmission between the conductive cable and the substrate.

[0041] To better understand the technical solutions and beneficial effects of the present application, the present application is further described in detail below with reference to specific embodiments:

[0042] like Figure 1 and Figure 2 As shown, the connection assembly 10 of one embodiment includes a base plate 100 and a connection device 200. Figures 3 to 5 The substrate 100 is provided with a signal contact sheet 110 and a ground sheet 120. The connecting device 200 is connected to the substrate 100 and is respectively connected to the signal contact sheet 110 and the ground sheet 120 for signal transmission. In one embodiment, the connecting device 200 includes a conductive base 210 and a conductive cable 220. The conductive cable 220 is mounted on the conductive base 210, and the ground end of the conductive cable 220 is reliably grounded against the conductive base 210. The conductive base 210 is used to electrically connect to the ground sheet 120 of the substrate 100, so that the conductive cable 220 is electrically connected to the ground sheet 120 through the conductive base 210, thereby achieving reliable grounding of the conductive cable 220 and the substrate 100. The signal end of the conductive cable 220 abuts against the signal contact sheet 110, allowing the conductive cable 220 to reliably transmit signals to the substrate 100.

[0043] like Figures 5 to 7As shown, in one embodiment, a conductive cable 220 is used to electrically connect to the ground plane 120 of the substrate 100 via a conductive base 210. The conductive cable 220 includes a cable unit 221, a signal terminal 223, a ground shield 225, and an insulating overmolded assembly 227. The cable unit 221 includes a signal line 221a, a cable sheath 221b wrapped around the signal line 221a, and a conductive copper foil 221c wrapped around the cable sheath 221b. Portions of the signal line 221a are exposed outside the cable sheath 221b. The signal terminal 223 abuts against the portion of the signal line 221a exposed outside the cable sheath 221b, electrically connecting the signal terminal 223 to the signal line 221a. The ground shield 225 abuts against the conductive copper foil 221c, electrically connecting the ground shield 225 to the conductive copper foil 221c.

[0044] Furthermore, the insulating overmolding component 227 is overmolded at least at the junction of the ground shield 225 and the conductive copper foil 221c, and at the junction of the signal terminal 223 and the signal line 221a. Portions of the signal terminal 223 and the ground shield 225 are exposed from the insulating overmolding component 227. The portion of the signal terminal 223 exposed from the insulating overmolding component 227 elastically abuts against the signal contact sheet 110, electrically connecting the signal terminal 223 and the signal contact sheet 110. The portion of the ground shield 225 exposed from the insulating overmolding component 227 is connected to the conductive base 210, electrically connecting the ground shield 225 and the conductive base 210.

[0045] The above-mentioned conductive cable 220 realizes signal transmission because the signal terminal 223 abuts against the signal line 221a exposed on the periphery of the cable sheath 221b. Moreover, since the ground shield abuts against the conductive copper foil 221c, and the insulating plastic-coated component 227 is at least respectively coated at the abutment portion between the ground shield 225 and the conductive copper foil 221c and the abutment portion between the signal terminal 223 and the signal line 221a, parts of the signal terminal 223 and parts of the ground shield 225 are exposed on the insulating plastic-coated component 227. The portion of the signal terminal 223 exposed from the insulating overmolded component 227 elastically abuts against the signal contact piece 110 of the substrate 100, allowing the signal line 221a to conduct electricity through the signal terminal 223 and the signal contact piece 110, and the conductive copper foil 221c is electrically connected to the conductive seat 210 through the grounding shield 225, and the conductive seat 210 is electrically connected to the grounding surface 120. Compared with the traditional method of connecting the cable assembly and the circuit board through the terminal abutment, this method realizes reliable signal transmission between the conductive cable 220 and the substrate 100.

[0046] In order to firmly connect the signal terminal 223 with the signal line 221a, and to reliably electrically connect the signal terminal 223 with the signal line 221a, as shown in FIG. Figure 5 As shown, in one embodiment, the abutment portion of the signal terminal 223 and the signal line 221 a is welded, so that the signal terminal 223 and the signal line 221 a are firmly connected, and the signal terminal 223 and the signal line 221 a are reliably electrically connected.

[0047] like Figure 5 and Figure 7 As shown, in one embodiment, the ground shielding member 225 is formed with a bare window 2251, and the welding point between the signal terminal 223 and the signal line 221a is arranged corresponding to the bare window 2251, so that the welding auxiliary fixture supports the signal terminal 223 and the signal line 221a through the bare window 2251 during the welding process of the signal terminal 223 and the signal line 221a, thereby improving the efficiency and reliability of the welding between the signal terminal 223 and the signal line 221a.

[0048] In order to enable the insulating overmolding component to fix and support both the ground shield and the signal terminal 223, and at the same time to reliably separate the ground shield and the signal terminal 223, in one embodiment, the insulating overmolding component 227 is partially molded between the ground shield and the signal terminal 223, so that the insulating overmolding component can fix and support both the ground shield and the signal terminal 223, and at the same time to reliably separate the ground shield and the signal terminal 223.

[0049] like Figure 8 and 8a As shown, in one embodiment, the insulating overmolded component 227 is provided with a first hollow groove 2272 at a position adjacent to the bare window 2251. The first hollow groove 2272 is arranged corresponding to the bare window 2251 to reduce the impedance generated by the conductive cable 220 during signal transmission, thereby improving the signal transmission speed of the conductive cable 220. Figure 10 Furthermore, a second hollow groove 2274 is provided in the portion of the insulating overmolded component 227 away from the bare window 2251. The second hollow groove 2274 and the first hollow groove 2272 are respectively located on both sides of the signal terminal 223, further reducing the impedance generated by the conductive cable 220 during signal transmission, while improving the signal transmission speed of the conductive cable 220.

[0050] like Figure 4 and Figure 5As shown, in one embodiment, the conductive base 210 is provided with a plugging slot 212, into which the conductive cable 220 is plugged, and the portion of the grounding shield 225 exposed from the insulating overmolded component 227 abuts against the inner wall of the plugging slot 212, thereby enabling the conductive cable 220 to be plugged and unplugged from the conductive base 210, facilitating the removal and replacement of the conductive cable 220, while also ensuring that the grounding shield 225 of the conductive cable 220 is reliably grounded against the conductive base 210. In this embodiment, there are multiple conductive cables 220 and plugging slots 212, and the multiple conductive cables 220 are plugged into the multiple plugging slots 212 in a one-to-one correspondence. Since each conductive cable 220 is plugged and unplugged into a corresponding plugging slot 212 of the conductive base 210, each conductive cable 220 can be independently removed, installed, or replaced, thereby providing greater ease of use compared to the conventional connection assembly 10.

[0051] like Figure 4 、 Figure 5 and Figure 7 As shown, in one embodiment, the connection device 200 further includes a conductive spring 230 connected to the conductive base 210 and configured to abut the grounding plate 120 of the substrate 100. This allows the conductive base 210 to be electrically connected to the grounding plate 120 via the conductive spring 230, thereby reliably grounding the conductive base 210. In this embodiment, the grounding shield 225 is positioned within the insertion slot 212 and abuts the conductive base 210, electrically connecting the grounding shield 225 to the grounding plate 120 via the conductive base 210 and the conductive spring 230. Specifically, the abutment between the conductive base 210 and the grounding plate 120 allows the conductive base 210 to be not only directly grounded to the grounding plate 120, but also to be electrically grounded to the grounding plate 120 via the conductive spring 230. This avoids the problem of grounding defects caused by inadequate abutment between the conductive base 210 and the grounding plate 120, thereby improving the grounding reliability of the connection device 200. And / or, in one embodiment, the conductive base 210 further defines a connection slot 214 that communicates with the insertion slot 212, and the grounding shield 225 is provided with a retaining portion 225a that snaps into the connection slot 214, thereby securely assembling the grounding shield 225 and the conductive base 210 and electrically connecting the grounding shield 225 and the conductive base 210, thereby achieving reliable grounding. In one embodiment, the retaining portion 225a is provided with a retaining tab 2252 that is located on the outside of the conductive base 210 and abuts against the conductive base 210, preventing the retaining tab 2252 from slipping through the connection slot 214 and ensuring that the retaining portion 225a is securely retained and connected to the periphery of the conductive base 210.

[0052] In order to make the limiting portion 225a more reliably limit and connect to the periphery of the conductive seat 210, as shown in FIG. Figure 4 As shown, the extending direction of the connection slot 214 forms an angle with the plane of the ground plane 120, i.e., the extending direction of the connection slot 214 forms an inclined slot, which allows the limiting portion 225a to be more reliably fixed to the periphery of the conductive base 210. In this embodiment, the ground shield 225 includes a ground shield body 225b and a limiting portion 225a, which are connected to each other. The connection between the ground shield body 225b and the limiting portion 225a is bent, which allows the limiting portion 225a to be more reliably fixed to the periphery of the conductive base 210. Specifically, the bending angle θ at the connection between the ground shield body 225b and the limiting portion 225a can be between 110 and 170 degrees. For example, the bending angle at the connection between the ground shield body 225b and the limiting portion 225a is 120 degrees, which allows the limiting portion 225a to be more reliably fixed to the periphery of the conductive base 210.

[0053] like Figure 4 、 Figure 5 and Figure 7 As shown, in one embodiment, the connecting device 200 further includes a conductive spring 230, which is connected to the conductive base 210 and is used to be welded to the grounding plate 120 of the substrate 100, so that the conductive spring 230 is fixed to the grounding plate 120. In turn, the conductive base 210 can be reliably electrically connected to the grounding plate 120 through the conductive spring 230, thereby achieving reliable grounding of the conductive base 210. In this embodiment, the conductive spring 230 is welded to the grounding plate 120 by spot welding. It is understood that in other embodiments, the conductive spring 230 can also be welded to the grounding plate 120 by other welding methods.

[0054] like Figure 4 、 Figure 5 and Figure 7As shown, in one embodiment, the conductive spring 230 includes a spring connecting strip 232 and at least two spring monomers 234. Each spring monomer 234 is connected to the spring connecting strip 232. The conductive base 210 is provided with two spring monomers 234 at the bottom portion where the insertion slot 212 is formed. The insertion slot 212 is located between the two spring monomers 234. The spring connecting strip 232 is fixedly connected to the conductive base 210. Each spring monomer 234 is welded to the grounding plate 120, so that the conductive spring 230 is welded to the grounding plate 120. Because the insertion slot 212 is located between the two spring monomers 234 and each spring monomer 234 is welded to the grounding plate 120, the conductive spring 230 is reliably grounded by being welded to the grounding plate 120. In this embodiment, the number of conductive cables 220 and the number of plug-in slots 212 are both 2M. The 2M conductive cables 220 are arranged in two rows, with each row containing M conductive cables 220. The corresponding number of spring clip units 234 is M+1, meaning that one spring clip unit 234 is provided between two adjacent conductive cables 220, ensuring that each conductive cable 220 is reliably electrically connected to the ground. The spring clip connecting strip 232 is welded to the conductive base 210, ensuring a secure connection and electrical connection between the spring clip connecting strip 232 and the conductive base 210.

[0055] like Figure 4 、 Figure 5 and Figure 7 As shown, each elastic fragment unit 234 further includes a first bent portion 234a and a second bent portion 234b connected to each other. The second bent portion 234b is connected to the elastic fragment connecting strip 232. The first bent portion 234a and the second bent portion 234b are both welded to the grounding plate 120, so that each elastic fragment unit 234 is welded to the grounding plate 120. In this way, each elastic fragment unit 234 has two welding locations with the grounding plate 120, so that each elastic fragment unit 234 is better welded and fixed to the grounding plate 120. In this embodiment, a elastic fragment unit 234 is provided on both sides of each conductive cable. In this way, there are two welding points on each side of each conductive cable where it is welded to the grounding plate 120.

[0056] In order to make the conductive spring 230 better contact and ground the grounding surface 120, Figure 4 、 Figure 5 and Figure 7As shown, the conductive spring piece 230 further includes a reinforcing spring piece 236. The reinforcing spring piece 236 is fixedly connected to the spring piece connecting strip 232. The reinforcing spring piece 236 contacts the grounding plate 120, so that the conductive base 210 can also be electrically connected to the grounding plate 120 through the spring piece connecting strip and the reinforcing spring piece 236. In this embodiment, the reinforcing spring piece 236 is bent and welded to the grounding plate 120, so that the reinforcing spring piece 236 can better contact the grounding plate 120. Specifically, there are two reinforcing springs 236, which are arranged side by side. In this way, there are six adjacent grounding points at the location where each conductive cable 220 is plugged into the conductive base 210. In other words, the conductive springs 230 are welded to the grounding plate 120 through six welding points at locations adjacent to each conductive cable 220. In this way, there are six adjacent grounding points at the location where each conductive cable 220 is plugged into the conductive base 210, thereby enabling each conductive cable 220 to be better grounded.

[0057] It is understood that in one embodiment, the cable sheath 221b can be made of plastic, rubber, or other insulating materials. In this embodiment, the cable sheath 221b is made of plastic so that the cable sheath 221b can better wrap around the signal terminal 223 and provide better insulation.

[0058] like Figure 10 and Figure 11As shown, in one embodiment, each conductive cable 220 has two signal lines 221a. The two signal lines 221a of each conductive cable 220 constitute differential signal transmission, thereby achieving differential signal transmission for each conductive cable 220. In this embodiment, there are two signal terminals 223 and two signal contact pads 110. The two signal terminals 223 correspond to the two signal lines 221a, and the two signal terminals 223 abut the corresponding signal contact pads 110, achieving differential signal transmission. The two signal lines 221a are each wrapped with a cable sheath 221b, and the conductive copper foil 221c is respectively wrapped around the two cable sheaths 221b. That is, the cable sheaths 221b corresponding to the two signal lines 221a are wrapped with the same conductive copper foil 221c. This ensures that the conductive cable 220 is reliably grounded and returned during differential signal transmission, while also reliably shielding the conductive cable 220 from external signal interference, thereby ensuring more stable differential signal transmission. Specifically, there are two signal lines 221a and two cable sheaths 221b, each of which is wrapped around a corresponding signal line 221a. Conductive copper foil 221c is wrapped around each of the two cable sheaths 221b, enabling differential signal transmission. Each signal line 221a is partially exposed outside the cable sheath 221b, and two signal terminals 223 abut against the corresponding portion of the signal line 221a exposed outside the cable sheath 221b, electrically connecting the two signal terminals 223 to the corresponding signal line 221a.

[0059] like Figure 6 and Figure 7As shown, further, a connecting stud 216 is provided at the bottom of the conductive base 210 adjacent to the substrate 100. The substrate 100 has a connecting hole 102. The connecting stud 216 is located within the connecting hole 102 and plugs into the substrate 100, providing a secure connection and preventing the conductive base 210 from moving relative to the substrate 100. This ensures that the conductive base 210 reliably contacts the grounding contact piece and that the signal terminal 223 reliably contacts the signal contact piece 110. In this embodiment, there are two connecting studs 216 and two connecting holes 102, respectively, with the two connecting studs 216 located within the two connecting holes 102. The line connecting the two connecting studs 216 is parallel to the direction in which the multiple conductive cables 220 are arranged side by side. To ensure that the contact surfaces of the conductive base 210 and the substrate 100 are coplanar, a positioning stud 218 is further provided at the bottom of the conductive base 210 adjacent to the substrate 100. The substrate 100 has a positioning hole 104. There are two positioning protrusions 218 and two positioning holes 104, and the two positioning protrusions 218 are respectively inserted into the two positioning holes 104. Since there are two connecting protrusions 216 and two connecting holes 102, and the two connecting protrusions 216 are respectively located in the two connecting holes 102, and the two positioning protrusions 218 are respectively inserted into the two positioning holes 104, the conductive base 210 is positioned on the substrate 100. The connection line of the two connecting protrusions 216 is parallel to the parallel arrangement direction of the plurality of conductive cables 220. The arrangement direction of the two positioning protrusions 218 is parallel to the arrangement direction of the two connecting protrusions 216. This ensures that the contact surfaces of the conductive base 210 and the substrate 100 are located on the same plane, and the connection between the conductive base 210 and the substrate 100 is more precise. This ensures more reliable contact between the conductive base 210 and the ground contact piece, and also ensures that the signal terminal 223 and the signal contact piece 110 are reliably contacted.

[0060] like Figure 8a As shown, the outer wall of the ground shield 225 is provided with a protruding abutting portion 225c. The abutting portion 225c abuts the inner wall of the insertion slot 212, allowing the ground shield 225 to elastically abut against the conductive seat 210, thereby better inserting the conductive cable 220 into the insertion slot 212. The portion of the ground shield 225 exposed from the insulating overmolded component 227 also better abuts against the inner wall of the insertion slot 212. In this embodiment, the ground shield 225 can be a conductive metal member, and the number of the abutting protrusions 225c is two, one located on each side of the ground shield 225.

[0061] like Figure 7 and Figure 12As shown, the conductive base 210 can be a metal base, which provides the conductive base 210 with good conductivity and structural strength. To ensure that the conductive cable 220 can reliably plug into and contact the insertion slot 212, the insertion slot 212 is further configured as an oblique slot structure, so that the conductive cable 220 can be inserted into the insertion slot 212 and the contact area with the conductive base 210 is larger. Furthermore, the conductive seat 210 includes a conductive seat body 210a and a plug-in extension plate 210b, the plug-in slot 212 is opened on the conductive seat body 210a, the plane where the extension direction of the plug-in extension plate 210b is located is parallel to the extension direction of the plug-in slot 212, and the plug-in extension plate 210b and the inner wall of the plug-in extension slot 212 are formed with a plug-in extension port 211, the plug-in extension port 211 is connected to the plug-in slot 212, so that the conductive cable 220 is inserted into the plug-in slot 212 through the plug-in extension port 211, and the grounding shielding member 225 is respectively in contact with the plug-in extension plate 210b and the conductive seat body 210a, thereby making the area of ​​the conductive cable 220 in contact with the conductive seat 210 larger.

[0062] like Figure 7 and Figure 12 As shown, in one embodiment, there are multiple conductive cables 220 and multiple plug-in slots 212. The multiple conductive cables 220 are plugged into the multiple plug-in slots 212 in a one-to-one correspondence to achieve the transmission of multiple different differential signals. In this embodiment, the multiple plug-in slots 212 are arranged in two rows. Accordingly, the multiple conductive cables 220 are plugged and assembled in two rows on the conductive base 210. There are two plug-in extension plates 210b, one of which is provided for one row of plug-in slots 212, and the other plug-in extension plate 210b is provided for the other row of plug-in slots 212. Specifically, the number of conductive cables 220 and plug-in slots 212 is 2M, and the 2M conductive cables 220 are plugged into the 2M plug-in slots 212 one by one. The 2M plug-in slots 212 are distributed in two rows, and one plug-in extension plate 210b is set corresponding to one row of plug-in slots 212, and the other plug-in extension plate 210b is set corresponding to the other row of plug-in slots 212. Each row of plug-in slots 212 has M plug-in slots 212. In order to ensure that the M conductive cables 220 are spaced apart and can be reliably inserted into the corresponding plug-in slots 212, further, M-1 partition plates 210c are provided between each plug-in extension plate 210b and the conductive base body 210a, and each partition plate 210c is respectively connected to the plug-in extension plate 210b and the conductive base body 210a, so that M plug-in extension ports 211 are formed between each plug-in extension plate 210b and the conductive base body 210a, and the M plug-in extension ports 211 are respectively connected to the M plug-in slots 212 in a one-to-one correspondence, and each conductive cable 220 is respectively plugged into the corresponding plug-in extension port 211 and the plug-in slot 212, so that the M conductive cables 220 are spaced apart and can be reliably inserted into the corresponding plug-in slots 212.

[0063] like Figure 7 As shown, in one embodiment, the ground plane 120 has 2M relief openings 122 arranged in two rows, with each row containing M relief openings 122, and the M relief openings 122 in each row spaced apart. There are 4M signal contacts 110, with each relief opening 122 accommodating two side-by-side signal contacts 110. There are 4M signal terminals 223, each corresponding to 2M conductive cables 220. That is, every two signal terminals 223 contact the two signal contacts 110 in the same relief opening 122, enabling the transmission of two differential signals for each conductive cable 220. In this embodiment, the ground plane 120 and the conductive base 210 are electrically grounded, and every two signal terminals 223 contact the two signal contacts 110 in the same relief opening 122, enabling reliable differential signal transmission for each conductive cable 220. It is understood that two signal contact pieces 110 are disposed in each clearance opening 122 , and a distance exists between the periphery of each clearance opening 122 and the corresponding two signal contact pieces 110 to prevent the grounding piece 120 from interfering with the signal contact pieces 110 and affecting signal transmission.

[0064] like Figure 5 As shown, the inner wall of the insertion slot 212 is further provided with a limiting ridge 212a. The limiting ridge 212a abuts the insulating overmolded component 227, thereby limiting the position of the conductive cable 220 when inserted into the insertion slot 212 and preventing the conductive cable 220 from being over-inserted into the insertion slot 212. In this embodiment, the end of the grounding shield 225 adjacent to the substrate 100 is fixedly connected to the conductive base body 210a. The limiting ridge 212a abuts the insulating overmolded component, thereby limiting the connection and tensioning the grounding shield 225 and reliably grounding it to the conductive base 210. Furthermore, there are multiple limiting ridges 212a, each corresponding to each of the multiple insertion slots 212, so that each conductive cable 220 can be securely inserted and assembled into the insertion slot 212.

[0065] like Figure 5 and Figure 10 As shown, further, the insulating overmolding component 227 is provided with a limiting groove 227a, and the grounding shielding component main body 225b includes a shielding component 2252 and a bending limiting portion 2254 connected to each other. The shielding component is covered on the insulating overmolding component 227, and the bending limiting portion 2254 is covered on the insulating overmolding component 227 in a bent shape, and the bending limiting portion 2254 is partially located in the limiting groove 227a, which plays a role of fixed limitation.

[0066] Such as 8a and Figure 9As shown, the insulating overmolding assembly 227 further includes a first insulating covering 227a and a second insulating covering 227b. The first insulating covering 227a covers at least the junction between the signal terminal 223 and the signal line 221a, and the second insulating covering 227b covers the junction between the ground shield 225 and the conductive copper foil 221c and the first insulating covering 227a, respectively. This allows the insulating overmolding assembly 227 to cover the junction between the signal terminal 223 and the signal line 221a, and the junction between the ground shield 225 and the conductive copper foil 221c. In this embodiment, both the first insulating covering 227a and the second insulating covering 227b can be plastic or rubber coverings, ensuring that both the first insulating covering 227a and the second insulating covering 227b have good insulation performance. A retaining groove 227a is defined in the first insulating covering 227a.

[0067] like Figure 4 As shown, in one embodiment, the cable monomer 221 further includes an insulating protective sleeve 221d, the insulating protective sleeve 221d is coated on the conductive copper foil 221c, and the conductive copper foil 221c is partially exposed outside the insulating protective sleeve 221d and abuts against the grounding shield 225, so that the insulating protective sleeve 221d plays an insulating and protective role for the conductive copper foil 221c. In order to enable the insulating plastic-coating component to better coat and fix the abutting portion between the grounding shield 225 and the conductive copper foil 221c, further, a second insulating coating 227b is also coated on the end of the insulating protective sleeve adjacent to the grounding shield 225, so that the insulating plastic-coating component can better coat and fix the abutting portion between the grounding shield 225 and the conductive copper foil 221c. See also Figure 8a Furthermore, the second insulating covering 227b is provided with a surrounding covering body 2271, and the surrounding covering body 2271 is respectively arranged around the abutment point between the grounding shielding member 225 and the conductive copper foil 221c, so that the insulating plastic-coating component can better cover and fix the abutment point between the grounding shielding member 225 and the conductive copper foil 221c.

[0068] like Figure 5 and Figure 9As shown, the signal terminal 223 further includes a connected signal terminal body 223a and a contact portion 223b. The signal terminal body 223a is welded to the signal line 221a, and the insulating overmolding component covers the weld between the signal terminal body 223a and the signal line 221a. The contact portion 223b elastically contacts the signal contact sheet 110, electrically connecting the contact portion 223b to the signal contact sheet 110. In this embodiment, the width of the signal terminal body 223a gradually decreases as it approaches the contact portion 223b, resulting in a difference in the dielectric constant of the signal terminal 223. Taking into account the difference in conductivity between the portion of the signal terminal body 223a exposed outside the insulating overmolding component and the portion covered by the insulating overmolding component, the entire signal terminal 223 has better conductivity uniformity, thereby achieving better signal transmission of the signal terminal 223. Furthermore, the two signal lines 221a of the cable unit 221 of each conductive cable 220 are arranged in parallel, and accordingly, the two signal terminals 223 are arranged in parallel, so that the two signal lines 221a and the two signal terminals 223 are arranged in parallel at equal distances, making the structure of the conductive cable 220 more compact and achieving better signal transmission.

[0069] Compared with the prior art, the present invention has at least the following advantages:

[0070] The above-mentioned conductive cable 220 realizes signal transmission because the signal terminal 223 abuts against the signal line 221a exposed on the periphery of the cable sheath 221b. Moreover, since the ground shield abuts against the conductive copper foil 221c, and the insulating plastic-coated component 227 is at least respectively coated at the abutment portion between the ground shield 225 and the conductive copper foil 221c and the abutment portion between the signal terminal 223 and the signal line 221a, parts of the signal terminal 223 and parts of the ground shield 225 are exposed on the insulating plastic-coated component 227. The portion of the signal terminal 223 exposed from the insulating overmolded component 227 elastically abuts against the signal contact piece 110 of the substrate 100, allowing the signal line 221a to conduct electricity through the signal terminal 223 and the signal contact piece 110, and the conductive copper foil 221c is electrically connected to the conductive seat 210 through the grounding shield 225, and the conductive seat 210 is electrically connected to the grounding surface 120. Compared with the traditional method of connecting the cable assembly and the circuit board through the terminal abutment, this method can achieve reliable signal transmission between the conductive cable 220 and the substrate 100.

[0071] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A connecting device, characterized in that: It includes a conductive seat and a conductive cable, wherein the conductive seat is used to electrically connect to the ground plane of the substrate, and the conductive cable includes: A cable monomer, comprising a signal line, a cable sheath wrapped around the signal line, and a conductive copper foil wrapped around the cable sheath, wherein a portion of the signal line is exposed outside the cable sheath; a signal terminal abutting against the signal line exposed at the periphery of the cable sheath; a ground shielding member abutting against the conductive copper foil; an insulating overmolded component, wherein the insulating overmolded component is at least respectively overmolded at the abutment portion between the ground shield and the conductive copper foil, and at the abutment portion between the signal terminal and the signal line, wherein portions of the signal terminal and the ground shield are both exposed from the insulating overmolded component, wherein the portion of the signal terminal exposed from the insulating overmolded component is configured to elastically abut against the signal contact piece of the substrate, and the portion of the ground shield exposed from the insulating overmolded component is connected to the conductive seat; Conductive spring clip, the conductive spring clip is connected to the conductive seat; the conductive spring clip includes a spring clip connecting strip and at least two spring clip monomers, each spring clip monomer is connected to the spring clip connecting strip, and the conductive seat is provided with two spring clip monomers at the bottom position where the plug-in slot is opened, and the plug-in slot is located between the two spring clip monomers. The spring clip connecting strip is connected and fixed to the conductive seat, and each spring clip monomer is welded to the ground surface.

2. The connecting device according to claim 1, characterized in that The signal terminal and the signal line are welded at their abutting locations.

3. The connection device according to claim 2, characterized in that The ground shielding component is formed with an open window, and the welding point between the signal terminal and the signal line is arranged corresponding to the open window.

4. The connection device according to claim 3, characterized in that The insulating overmolded component is partially formed between the ground shield and the signal terminal.

5. The connecting device according to claim 4, characterized in that A first hollowing groove is formed at a portion of the insulating plastic-coated component adjacent to the bare window, and the first hollowing groove is arranged corresponding to the bare window.

6. The connection device according to claim 1, characterized in that The conductive seat is provided with a plug-in slot, the conductive cable is plugged into the plug-in slot, and the portion of the grounding shielding component exposed from the insulating plastic-coated component abuts against the inner wall of the plug-in slot.

7. The connection device according to claim 6, characterized in that The conductive seat is further provided with a connecting groove communicated with the plug-in groove, and the grounding shielding component is provided with a limiting portion, which is snapped into the connecting groove.

8. The connecting device according to claim 1, characterized in that Each of the elastic sheet monomers includes a first bent portion and a second bent portion connected to each other, the second bent portion is connected to the elastic sheet connecting strip, and the first bent portion and the second bent portion are both welded to the grounding plate.

9. A connection assembly, characterized in that: It comprises a substrate and a connecting device according to any one of claims 1 to 8, wherein the substrate is provided with a signal contact piece and a ground plane piece, the portion of the signal terminal exposed from the insulating overmolded component elastically abuts against the signal contact piece, and the conductive spring piece is electrically connected to the ground plane piece.

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