Connection structure of electric connector and transmission cable and welding installation accessory

Abstract

The utility model relates to a connection structure of an electric connector and a transmission cable and a welding installation accessory, which comprises a plug assembly connected with at least one transmission cable, the plug assembly comprises a wire clamping plate, and the wire clamping plate is connected with at least one wire for providing signal shielding in the transmission cable. According to the utility model, by adopting the novel connection structure of the electric connector and the transmission circuit, the probability of mutual interference between signal cables in the electric connector is at least reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the connection structure and welding installation accessory of electric connector and transmission cable belong to the technical field of electric signal transmission equipment. BACKGROUND

[0002] With the continuous increase of signal transmission rate and power density, for using PCB board circuit as the carrier of signal transmission, not only the signal integrity problems such as attenuation, crosstalk, distortion are faced when high-speed signal transmission, but also the actual problems such as insufficient space are faced because of the electrical characteristic demand of high-speed signal itself. Using electric connector to replace the traditional PCB board circuit signal transmission mode can solve the above problems to a great extent. However, the electric connector is small in size and complex in structure, and some key structures can cause potential risks, if not carefully designed and installed, the performance of the electric connector not only cannot reach the design expectation, but also can be sharply deteriorated.

[0003] The high-speed electric connector for transmitting differential signal link super-high-speed data is small in size, small in spacing between high-speed differential transmission cables, long in parallel length between each high-speed differential transmission cable, and short in high-speed signal rising edge time, and these reasons cause that signal distortion problem and interference between transmission cables are very serious. In view of these problems, firstly, the transition structure of the electric connector needs to be carefully designed, and secondly, the best way to handle the interference problem is to separate the differential signals by using a metal sheet, so that each pair of signals is isolated from each other, thereby maintaining the integrity of the signals. Based on the actual assembly process of the electric connector, the parallel length of the high-speed differential signal should be shortened as much as possible, and the coupling path between the transmission cables should be reduced, so as to reduce the risk of mutual interference of each signal. However, the existing transition structure of the plug to the double-core coaxial transmission cable only does simple processing, and with the increase of the transmission rate of the electric connector, the transition design here becomes the limitation of the performance improvement of the electric connector. SUMMARY

[0004] The utility model provides a kind of connection structure and welding installation accessory of electric connector and transmission cable, to at least solve one of the technical problems existing in prior art.For example, the utility model proposes the connection structure and welding installation accessory of electric connector and transmission cable, at least reduce the probability of mutual interference between signal cable inside electric connector.

[0005] The technical scheme of the utility model relates to the connection structure of electric connector and transmission cable, comprising:

[0006] The plug assembly connected with at least one transmission cable;The plug assembly includes wire card plate, and the wire card plate is connected with at least one wire in the transmission cable for providing signal shielding.

[0007] Further, the wire card plate is provided with a wire hole allowing the transmission cable to pass.

[0008] Further, the shielding layer of the transmission cable is connected with the wire hole.

[0009] Further, the shielding layer of the transmission cable at least partially abuts against the inner wall of the wire hole.

[0010] Further, the plug assembly further comprises a plug partition plate, and the wire clamping plate is connected with the plug partition plate to form an independent space for accommodating the conductive member.

[0011] Further, the wire clamping plate is provided with a connecting recess, and the plug partition plate is provided with a connecting protrusion which is inserted into the connecting recess.

[0012] Further, the connecting protrusion protrudes from one side of the wire clamping plate away from the plug partition plate, and the connecting protrusion is arranged between the two transmission cables.

[0013] Further, the connecting protrusion is provided with two clamping protrusions arranged at opposite ends of the connecting protrusion.

[0014] Further, the plug assembly further comprises a UV block, and the connection between the transmission cable and the conductive member is arranged in the UV block.

[0015] The technical scheme of the utility model relates to a welding head applied to an electric connector, and the welding head is applied to the connecting structure of the electric connector and the transmission cable in the above embodiment.

[0016] The utility model has the advantages as follows.

[0017] The transition structure of the electric connector and the transmission cable adopts a new transition mode, a wire hole is directly punched on the wire clamping plate to provide a larger wire hole space for the transmission cable.

[0018] The new splicing type shielding structure is adopted, the new transition mode of the electric connector and the transmission cable is adopted, the welding installation accessory (welding head) with the fixed recess and the groove is provided to facilitate the welding installation requirement of the electric connector and the transmission cable under various installation modes. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a general schematic view of a cable-equipped electrical connector according to an embodiment of the present application.

[0020] Figure 2 is a structural schematic view of a plug assembly of a cable-equipped electrical connector according to an embodiment of the present application.

[0021] Figure 3 is a structural schematic view of a plate of a plug assembly of an electrical connector according to an embodiment of the present application.

[0022] Figure 4 is a front view of a wire card plate of an electrical connector according to an embodiment of the present application.

[0023] Figure 5 is a front view of a plug partition plate of an electrical connector according to an embodiment of the present application.

[0024] Figure 6a is a sectional view of a transmission cable connected to an electrical connector according to an embodiment of the present application.

[0025] Figure 6b is a front view of a circuit board connected to an electrical connector according to an embodiment of the present application.

[0026] Figure 7 is a sectional view of a transition connection structure of an electrical connector and a transmission cable according to an embodiment of the present application.

[0027] Figure 8 is another sectional view of an electrical connector according to an embodiment of the present application, in which a light-sensitive glue structure is shown.

[0028] Figure 9 is a structural schematic view of a welding installation accessory according to an embodiment of the present application.

[0029] Figure 10 is a schematic view of a welding head when used in an electrical connector according to an embodiment of the present application.

[0030] Figure 11 is Figure 10 is an enlarged schematic view of B.

[0031] Reference signs:

[0032] 100 plug assembly; 110 wire card plate; 111 wire hole; 112 connection recess; 120 plug connection plate; 130 plug partition plate; 131 connection bump; 140 offset hole; 150 clamping bump; 151 clamping protrusion; 160 independent space; 170 UV block;

[0033] 200 socket assembly;

[0034] 300 transmission cable; 310 shielding layer; 320 signal line; 330 insulating medium; 340 conducting wire; 350 conducting member; 360 insulating layer;

[0035] 400 circuit board;

[0036] 500 welding head; 510 fixing recess; 520 recess; 530 electrode connecting part. DETAILED DESCRIPTION

[0037] The concept, specific structure and technical effects of the present application will be described clearly and completely in combination with the embodiments and the drawings, so as to fully understand the purpose, scheme and effects of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0038] It should be noted that, unless otherwise specified, when a certain feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right, top, bottom and other descriptions used in the present application are only relative to the relative positions of the components of the present application in the drawings.

[0039] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any combination of one or more related listed items.

[0040] It should be understood that although the terms first, second, third, etc. can be used in the present disclosure to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of the present disclosure, a first element can also be referred to as a second element, and similarly, a second element can also be referred to as a first element.

[0041] Referring to Figures 1 to 11 The connection structure of the electrical connector and the transmission cable of the technical scheme of the present application comprises a plug assembly 100 connected with at least one transmission cable 300, and the plug assembly 100 comprises a wire clamping plate 110 connected with at least one conducting wire 340 in the transmission cable 300 for providing signal shielding.

[0042] Referring to Figure 1 and Figure 2In some embodiments, the electrical connector includes a plug assembly 100 connected with the plurality of transmission cables 300 and a socket assembly 200 connected with the circuit board 400. When the plug assembly 100 is inserted into the socket assembly 200, the transmission cables 300 are indirectly connected to the circuit board 400 through the conductive members 350. The plug assembly 100 includes a plug housing (not shown), a wire card plate 110, a plug connecting plate 120, and a plurality of plug partition plates 130. The wire card plate 110, the plug connecting plate 120, and the plug partition plates 130 are all arranged in the plug housing. The plurality of plug partition plates 130 can be parallel to each other and perpendicular to the plug connecting plate 120, and one side of the plurality of plug partition plates 130 is inserted into the plug connecting plate 120. The plug connecting plate 120 is arranged at the front side or the rear side of the plug partition plates 130. Referring to Figure 2 , one side of the plurality of plug partition plates 130 away from the circuit board 400 is inserted into the wire card plate 110, and the plug connecting plate 120 is perpendicular to the wire card plate 110, the wire card plate 110 is perpendicular to the plug partition plates 130, and the wire card plate 110 is arranged at the upper side of the plug partition plates 130. The wire card plate 110, the plug connecting plate 120, and the plug partition plates 130 combine to form independent spaces 160 that shield, and each group of conductive members 350 is arranged in one independent space 160, thereby forming a surrounding separation of the conductive members 350 and playing a good shielding interference role.

[0043] Based on such plug-in relationship, compact cable arrangement can be achieved. In some embodiments, referring to Figure 1 and Figure 7 , the number of the spacer assembly composed of the wire card plate 110, the plug connecting plate 120, and at least two plug partition plates 130 can be multiple, and multiple transmission cables 300 are arranged in a side-by-side manner in each group of spacer assemblies. Further, referring to Figure 7 , the electrical connector can be provided with two groups of spacer assemblies, and the two groups of spacer assemblies are symmetrically arranged towards each other, thereby forming two groups of cable assemblies, and the transmission cables 300 of each group of cable assemblies are arranged side by side, which significantly saves space.

[0044] In some embodiments, the wire card plate 110 is provided with a wire hole 111 for the transmission cable 300 to pass through. Referring to Figure 3 , Figure 4 and Figure 7 , the wire hole 111 is in communication with the independent space 160 accommodating the conductive member 350, and the signal line 320 of the transmission cable 300 is connected with the conductive member 350 through the wire hole 111. Thus, by punching the wire card plate 110, more wire space is provided for the transmission cable 300, which is conducive to the transmission cable 300 easily passing through the wire card plate 110.

[0045] In some embodiments, the line card board 110 can serve as the ground conductor of the transmission cable 300. The line card board 110 is connected to the transmission cable 300 through the wire 340, so that the line card board 110 serves as the ground conductor of the transmission cable 300. Further, the line card board 110 is made of a metal material with electrical conductivity. See Figure 6a , Figure 7 and Figure 8 In some embodiments, the transmission cable 300 is a high-frequency cable supporting high-speed differential signals. The transmission cable 300 is provided with two signal wires 320 as a set of differential wire pairs. The transmission cable 300 is stripped of the original ground wire (which can be the wire 340), and the remaining shielding layer 310 can also be connected to the ground wire. The wire 340 is connected to the line card board 110 and the shielding layer 310 of the transmission cable 300, respectively. The shielding layer 310 is wrapped in the outermost insulating layer 360 of the transmission cable 300, and the signal wire 320 and the shielding layer 310 are provided with an insulating medium 330 therebetween. In this embodiment, the contacts in the circuit board 400 are arranged to be spaced apart between each pair of differential pairs and each GND ground (see Figure 6b ). The two contacts of the circuit board 400 are connected to one end of the two conductive members 350, respectively, and the other end of the two conductive members 350 is connected to the two signal wires 320 in the transmission cable 300.

[0046] It can be understood that in some embodiments, each transmission cable 300 can be provided with two wires 340. The two wires 340 are arranged on the front side and the back side of the transmission cable 300, respectively. See Figure 2 , Figure 6a and Figure 11 The two wires 340 of the same or different transmission cable 300 are connected to the plug partition 130 on the front side (or left side) and the back side (or right side) of the transmission cable 300, respectively. The plug partition 130 in the middle of the line card board 110 connects the two wires 340. In some embodiments, the wire 340, the plug partition 130, and the line card board 110 can be fixedly connected together at the transition connection position between the line card board 110 and one side of the plug partition 130.

[0047] It can be understood that the utility model improves the transition mode of the transmission cable 300 and the electric connector. One end of the wire 340 is connected with the shielding layer 310 of the transmission cable 300 as the ground wire, the other end of the wire 340 is connected with the wire clamping plate 110, so that the wire clamping plate 110 is connected as the ground wire of the transmission cable 300, and the signal wire 320 in the transmission cable 300 is directly welded with the conductive part 350, and then the conductive part 350 is movably connected with the circuit board 400. Compared with the mode that the signal wire 320 and the ground wire of the traditional TwinAx wire are directly welded on the surface of the signal terminal, the scheme in the embodiment shortens the size required for welding the transmission cable 300 and the electric connector, is beneficial to improving the electrical performance of the electric connector, improving the continuity of the ground current, and shortening the main interference area between the end of the shielding layer 310 of the transmission cable 300 and the circuit board 400. Further, the shielding layer 310 of the transmission cable 300 as the ground wire is in contact with the inner wall of the wire hole 111, so as to be beneficial to further improving the continuity of the ground current.

[0048] In some embodiments, referring to Figure 4 and Figure 5 The wire clamping plate 110 is provided with a connecting recess 112, and the plug partition plate 130 is provided with a connecting protrusion 131 which is inserted into the connecting recess 112. Specifically, the connecting protrusion 131 is a flat plate and is vertically arranged, the left end and the right end of the connecting protrusion 131 are both provided with a clamping protrusion 151, and the clamping protrusion 151 is arranged on the upper side of the connecting protrusion 131. A plurality of connecting recesses 112 are arranged on the left side wall and the right side wall of the wire hole 111 respectively, and the connecting recess 112 is in communication with the wire hole 111. The connecting protrusion 131 passes through the wire hole 111, and the left side and the right side of the connecting protrusion 131 are clamped into two connecting recesses 112 respectively. Preferably, the connecting protrusion 131 is a flat plate and is vertically arranged, the left end and the right end of the connecting protrusion 131 are both provided with a clamping protrusion 151, and the clamping protrusion 151 is arranged on the upper side of the connecting protrusion 131. It can be understood that one transmission cable 300 can pass through each wire hole 111, or more than two transmission cables 300 can pass through.

[0049] It should be noted that, referring to Figure 7 and Figure 8In some preferred embodiments, the connection between the transmission cable 300 and the conductive member 350 is provided with a UV block 170. Specifically, the insulating medium 330 at the end of the transmission cable 300 is stripped off so that the signal line 320 at the end of the transmission cable 300 is exposed, and the exposed signal line 320 needs to be directly welded with the conductive member 350. Therefore, liquid UV glue can be dripped at the welding site before welding, and the UV block 170 is formed by condensation to pre-solidify the surrounding elements of the welding site, thereby facilitating the improvement of welding precision and reliability. By adding the UV block 170 at the welding site between the signal line 320 and the conductive member 350, the gap at the wire hole 111 is also eliminated. Compared with the conventional welding site without printing interference treatment and the mutual exposure between the signal lines 320, the wire clamping plate 110 in the present embodiment serves as a ground conductor, and the plug partition plate 130 and the wire clamping plate 110 are arranged at the periphery of the signal line 320, and the UV block 170 is arranged at the connection between the transmission cable 300 and the conductive member 350, which is conducive to effectively suppressing the interference of the electric connector after welding and installation.

[0050] In some embodiments, the connecting protrusion 131 protrudes from the upper side of the wire clamping plate 110, and the connecting protrusion 131 is arranged between the two transmission cables 300. Referring to Figure 3 、 Figure 4 and Figure 5 , the connecting protrusion 131 protrudes from the upper side of the wire clamping plate 110, which provides a favorable condition for the welding between the connecting protrusion 131 and the wire clamping plate 110, and the connecting protrusion 131 is arranged between the two transmission cables 300, which can further shield the adjacent two transmission cables 300. Further, the clamping protrusion 150 protrudes from the side of the wire clamping plate 110 away from the circuit board 400, so that the clamping protrusion 150 protrudes from the upper side of the wire clamping plate 110, which also provides a favorable condition for the welding between the clamping protrusion 150 and the wire clamping plate 110.

[0051] In some embodiments, the transmission cable 300 is connected with the circuit board 400 through the conductive member 350 in the electric connector. Referring to Figure 2 and Figure 7 , in the present embodiment, the conductive member 350 is elastic, and the conductive member 350 comprises a fixed connection part and an elastic contact part. One end of the fixed connection part is connected with the transmission cable 300, and the other end is connected with the elastic contact part. When the plug assembly 100 is inserted into the socket assembly 200, the elastic contact part can be connected with the circuit board 400 through the adapter, thereby realizing the connection between the transmission cable 300 and the circuit board 400. In some embodiments, the conductive member 350 is an elastic metal member, the fixed connection part is in the shape of a long strip plate, and the signal line 320 of the transmission cable 300 is directly welded with the fixed connection part. The shape of the elastic contact part can be any one of a circle, an ellipse, an arc, a W shape and an S shape.

[0052] Referring to Figures 9 to 11 In some embodiments, the welding installation accessory according to the present application can be implemented as a welding head 500, which is applied to the electrical connector in the above-mentioned embodiments. The transmission cable 300 is welded to the electrical connector by heating the welding position by the welding head 500. Referring to Figure 11 In some embodiments, the welding head 500 is provided with a fixed recess 510 and a groove 520, and the signal line 320 can be embedded in the fixed recess 510, and the plug partition plate 130 away from the plug connecting plate 120 is embedded in the groove 520. Referring to Figure 9 The upper side of the welding head 500 is used to connect the electrode of the electric welding equipment, and the lower side of the welding head 500 is provided with a plurality of fixed recesses 510 and a plurality of grooves 520. In the installation process of the electrical connector, the welding position of the signal line 320 and the conductive part 350 can be embedded in the fixed recess 510, and the side (i.e. the lower side) of the plug partition plate 130 away from the plug connecting plate 120 is embedded in the groove 520, so that the contact position of the signal line 320 and the conductive part 350 is heated and welded by the welding head 500.

[0053] The electrical connector according to the present application adopts a new connection structure to transition to the transmission cable 300, the transmission circuit is connected to the circuit board 400 through the conductive part 350, the signal line 320 in the transmission cable 300 is directly welded to the conductive part 350, and a shielding partition plate is arranged in the welding area of the signal line 320, for example, a connecting bump 131 for shielding and isolation is arranged between the signal lines 320, and a wire clamping plate 110 and a plug partition plate 130 are arranged on the side of the signal line 320. In the connection structure of the traditional electrical connector and the transmission cable 300, the flat welding head 500 is directly used to parallelly weld the signal line 320 and the ground wire of the transmission cable 300 on the plug assembly 100, which requires that the signal line 320 and the ground wire are in the same plane, and there cannot be any interfering structure around the welding area, otherwise the flat welding head 500 cannot press the signal line 320 and the ground wire, so the traditional flat welding head 500 cannot connect the electrical connector and the transmission circuit.

[0054] Continuing to refer to Figure 9 The power-on side of the welding head 500 is provided with two electrode connecting parts 530, which are respectively connected to the positive and negative electrodes of the electric welding equipment. The electric welding equipment is powered on to heat the welding side of the welding head 500, so as to weld the electrical connector. Referring to Figure 7 and Figure 11 The number of the fixed recesses 510 and the grooves 520 on the welding side of the welding head 500 respectively matches the number of the signal lines 320 and the plug partition plates 130, and when the welding head 500 enters the electrical connector from the side away from the plug connecting plate 120 (as shown in Figure 10 and Figure 11), the plug partition 130 is firstly embedded into the groove 520, then the soldering position of the signal line 320 and the conductive piece 350 is entered into the fixed recess 510, by coating the solder (such as solder paste) at the soldering position of the signal line 320 and the conductive piece 350 in advance, and coating the solder at the soldering position of the plug partition 130 in advance, then passing through the electric welding equipment to pass the pulse current into the welding head, making the welding head heat, and then heating the multiple soldering positions, completing the connection of the soldering position of the signal line 320 and the conductive piece 350, thereby completing the fixed connection of the electric connector and the transmission cable 300. Compared with the traditional flat welding head 500, the fixed recess 510 and the groove 520 arranged in the welding head 500 according to the embodiment of the utility model can adapt to the improved electric connector of the embodiment of the utility model, and effective welding is realized.

[0055] The above is only a preferred embodiment of the utility model, and the utility model is not limited to the above-mentioned embodiments, as long as the same means achieves the technical effect of the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the disclosure should be included in the protection scope of the disclosure. All should belong to the protection scope of the utility model. The technical scheme and / or implementation manner can have various different modifications and changes within the protection scope of the utility model.

Claims

1. An electrical connector and transmission cable connection structure comprising a plug assembly (100), characterised in that, The application relates to a connector and a transmission cable connection structure, comprising: a plug assembly (100) connected with at least one transmission cable (300); the plug assembly (100) comprises a wire clamping plate (110) connected with at least one wire (340) in the transmission cable (300) for signal shielding.

2. The connector and the transmission cable connection structure according to claim 1, wherein the wire clamping plate (110) is provided with a wire passing hole (111) allowing the transmission cable (300) to pass through.

3. The connector and the transmission cable connection structure according to claim 2, wherein a shielding layer (310) of the transmission cable (300) for signal shielding is connected with the wire (340).

4. The connector and the transmission cable connection structure according to claim 3, wherein the shielding layer (310) of the transmission cable (300) at least partially abuts against the inner wall of the wire passing hole (111).

5. The connector and the transmission cable connection structure according to claim 1, wherein the plug assembly (100) further comprises a plug partition plate (130), and the wire clamping plate (110) is connected with the plug partition plate (130) to form an independent space (160) for accommodating a conductive member (350).

6. The connector and the transmission cable connection structure according to claim 5, wherein the wire clamping plate (110) is provided with a connecting recess (112), the plug partition plate (130) is provided with a connecting protrusion (131), and the connecting protrusion (131) is inserted into the connecting recess (112).

7. The connector and the transmission cable connection structure according to claim 6, wherein the connecting protrusion (131) protrudes from the side of the wire clamping plate (110) away from the plug partition plate (130), and the connecting protrusion (131) is arranged between two transmission cables (300).

8. The connector and the transmission cable connection structure according to claim 6, wherein the connecting protrusion (131) is provided with two clamping protrusions (151) arranged at opposite ends of the connecting protrusion (131).

9. The connector and the transmission cable connection structure according to claim 5, wherein the plug assembly (100) further comprises a UV block (170), and the connection between the transmission cable (300) and the conductive member (350) is arranged in the UV block (170).

10. A solder mount attachment for use in the connection of an electrical connector to a transmission cable according to any one of claims 5 to 8, the solder mount attachment comprising: a fixing recess (510) and a groove (520), the contact between the signal wire (320) of the transmission cable (300) and the conductive member (350) can be embedded in the fixing recess (510), and one side of the plug partition plate (130) is embedded in the groove (520).

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