WO2017185306A1

WO2017185306A1 - Modular plug capable of being adapted to multiple wire diameters, and communication cable

Info

Publication number: WO2017185306A1
Application number: PCT/CN2016/080519
Authority: WO
Inventors: 周胜灵
Original assignee: 深圳市秦通通讯有限公司
Priority date: 2016-04-28
Filing date: 2016-04-28
Publication date: 2017-11-02

Abstract

A modular plug capable of being adapted to multiple wire diameters comprises a modular plug body provided with an inner chamber. The modular plug body is provided with a first end and a second end opposite to each other. The first end is provided with a metal terminal. The second end is provided with an opening that communicates with the inner chamber for insertion of a cable into the inner chamber. The modular plug also comprises a first plug mounted in the opening. The first plug is provided with an inner hole in which a second plug is replaceably mounted. The inner hole of the second plug communicates with the inner chamber. The second plug can be freely replaced according to the wire diameters of cables, and accordingly the modular plug can be adapted to cables with multiple wire diameters.

Description

Technical field

[0001] The present invention relates to a crystal head, and more particularly to a crystal head and a communication cable capable of adapting to various wire diameters.

[0002] The crystal head is an important interface component in cable connection, especially in network connection. It is a plastic connector that can be inserted into the device port in a fixed direction and can prevent the crystal head from falling off from the device port. The crystal head is mainly used to connect devices such as network card ports, hubs, switches and telephones, and is suitable for field termination between devices or horizontal subsystems. The existing crystal head has a fixed size for connecting the cable to the cable. A crystal head can only be used with a wire diameter cable, and the scope of application is relatively simple.

technical problem

In view of this, the present invention proposes a crystal head that can accommodate a variety of wire diameters.

The present invention also provides a communication cable that can accommodate a variety of wire diameters.

Problem solution

Technical solution

[0005] A crystal head capable of adapting to a plurality of wire diameters, comprising a crystal head body having an inner cavity, the crystal head body having opposite first and second ends, wherein the first end is provided with a metal terminal, The second end is provided with a mouthpiece communicating with the inner cavity for inserting a cable into the inner cavity, the crystal head comprising a first plug installed in the mouthpiece, the first plug having a first plug The inner hole, the crystal head further includes a second plug installed in the inner hole of the first plug, and the inner hole of the second plug is in communication with the inner cavity.

[0006] In an embodiment, the first plug is press-fitted with the port, the inner hole of the first plug is a circular inner hole, and the circular inner hole is in communication with the inner cavity. The second plug is an annular second plug that mates with the circular inner bore.

[0007] In an embodiment, the first plug includes a plug engaged with the rake and a plug wall extending from the plug toward the inner cavity, the plug wall and the crystal head body The inner wall abuts to securely connect the first plug to the crystal head body. In an embodiment, the first plug further includes an elastic hook extending from the plug toward the inner cavity.

The crystal head body is provided with a card slot that cooperates with the elastic hook, and when the first plug is pressed into the inner mouth of the mouth, the plug is located at the mouth, and the plug wall abuts The elastic hook hooks into the card slot on the inner wall of the inner cavity.

[0009] In an embodiment, the first plug includes a plug that cooperates with the tongue and an elastic hook extending from the plug toward the inner cavity, and the crystal head body is provided with The card slot of the elastic hook is engaged, and when the first plug is pressed into the inner mouth of the mouth, the plug is located at the mouth, and the elastic hook is caught in the card slot.

[0010] In an embodiment, the inner cavity of the crystal head has a plurality of side walls of the crystal head body, wherein a side wall of the crystal head body is provided with a first port connected to the inner cavity, and the card slot is disposed. And communicating with the first port on the sidewall of one of the crystal head bodies.

[0011] In an embodiment, the first plug is a hard rubber plug, and the second plug is an artificial rubber mat.

[0012] In an embodiment, at least one stopping portion is disposed on a periphery of the second plug, and a groove corresponding to the at least one stopping portion is disposed inside the first plug.

[0013] In an embodiment, the at least one stop portion includes two symmetrically protruding portions that are radially convex at a periphery of the second plug.

[0014] The present invention also provides a communication cable, including a cable and a crystal head connected to one end of the cable, the crystal head includes a crystal head body having a cavity, and the crystal head body has an opposite One end and a second end, the first end is provided with a metal terminal, the second end is provided with a mouth communicating with the inner cavity, the cable comprises a plurality of wire cores and covering the plurality of strands a sheath of the core, the crystal head includes a first plug installed in the mouth, the first plug has an inner hole, and a second plug is replaceably mounted in the inner hole of the first plug. The second plug has an inner hole, and the inner hole of the second plug is in communication with the inner cavity, and one end of the cable is inserted into the inner cavity from the inner hole of the second plug and is connected with the metal terminal Electrically connected, the second plug is squeezed between the outer surface of the sheath and the inner wall of the first plug. Advantageous effects of the invention

Beneficial effect

[0015] In summary, the present invention provides a crystal head capable of adapting to a plurality of wire diameters, the crystal head having a mouth for inserting a cable into the inner cavity of the crystal head, and a first plug is disposed in the mouthpiece The first plug has an inner hole a second plug is replaceably mounted in the inner hole, the second plug has an inner hole, and the inner hole of the second plug communicates with the inner cavity of the crystal head, wherein the first plug is a hard rubber plug for use with the crystal head The mouthpiece is firmly connected, and the second plug is an artificial rubber pad for tightly pressing with the cable. The second plug can be freely replaced according to the wire diameter of the cable, so that the crystal head can adapt to various wire diameters.

Brief description of the drawing

DRAWINGS

1 is a schematic exploded view of an embodiment of a crystal head and a cable of the present invention.

2 is an assembled view of the crystal head of FIG. 1 connected to a cable.

3 is a schematic cross-sectional perspective view of the crystal head of FIG. 1.

4 is a perspective structural view of the crystal head of FIG. 1.

[0020] FIG. 5 is a partial cross-sectional structural view showing the connection of a crystal head and a cable.

6 is an exploded perspective view showing a second embodiment of the plug of the crystal head of the present invention.

[0022] FIG. 7 is an assembled view of the crystal head including the plug of FIG. 6 connected to the cable.

Embodiments of the invention

[0023] Before the embodiments are described in detail, it is understood that the invention is not limited to the details The invention may be embodied in other ways. Further, it should be understood that the phraseology and terminology used herein are for the purpose of description The words "including", "comprising", "having", and the like, as used herein, are meant to include the items listed thereafter, their equivalents, and other additional items. In particular, when describing "a certain component", the present invention does not limit the number of the components to one, and may include a plurality.

As shown in FIGS. 1 to 5, the present invention provides a communication cable including a cable 10 and a crystal head 12 connected to the end of the cable 10. The crystal head 12 includes a crystal head body 14, a metal shield 16, a pressing elastic piece 18, and a first plug 20.

[0025] The crystal head body 14 has opposite first ends 22, second ends 24, and a lumen 26 formed between the first ends 22 and the second ends 24. The first end 22 is provided with a metal terminal 28, and the second end 24 is provided with a spout 30 communicating with the inner cavity 26, the first plug 20 being mounted within the spout 30. The cable 10 includes a plurality of wire cores 32 and a sheath 34 covering a plurality of wire cores, the cable 10 - end being inserted into the inner cavity 26 from the mouth 30 and disposed at the first end 22 of the crystal head The metal terminals 28 are electrically connected.

In the illustrated embodiment, the crystal head body 14 has four body sidewalls including a first body sidewall 36, a second body sidewall 38, a third body sidewall 40, and a fourth body sidewall 42. . The four body sidewalls define a cavity 26 of the crystal head body 14, wherein the first body sidewall 36 is opposite the third body sidewall 40, and the second body sidewall 38 is opposite the fourth body sidewall 42. The second body side wall 38 is provided with a first boring hole 44 communicating with the inner cavity 26, and the fourth body side wall 42 is connected with a pressing elastic piece 18 for snap-connecting with a connector socket. The connector socket is A socket on an electronic device for receiving and electrically connecting to the crystal head 12.

[0027] The mouth 30 of the second end 24 of the crystal head is surrounded by a plurality of frames of the crystal head body 14, each frame having an inner side of the frame of the mouth 30 and a frame facing away from the mouth 30, one of the frames facing outward The curved projection forms a concave surface on the inner side of the frame facing the cornice 30, and a convex surface is formed on the outer side of the frame facing away from the cornice 30.

[0028] In the illustrated embodiment, the crystal head opening 30 is surrounded by four frames, including a first frame 46, a second frame 48, a third frame 50, and a fourth frame 52, wherein the first frame 46 and The third frame 50 is two opposite short sides, the second frame 48 and the fourth frame 52 are two opposite long sides, and the outwardly curved raised frame is one of the long sides. The four frames are located at the outer edges of the four body sidewalls toward the second end 24 of the crystal head body 14. Specifically, the first frame 46 is located at the outer edge of the first body sidewall 36, the second frame 48 is located at the outer edge of the second body sidewall 38, and the third frame 50 is located at the outer edge of the third body sidewall 40. The fourth frame 52 is located at the outer edge of the fourth body side wall 42. The second frame 48 is located between the first port 44 and the second end 24 of the crystal head.

[0029] In this embodiment, the frame of the outwardly curved protrusion is a second frame 48. The second frame 48 has a frame inner side 54 located in the mouth 30 and a frame outer side 56 facing away from the mouth 30. The second frame 48 is oriented. The outer curved projection forms an arcuate concave surface on the inner side 54 of the frame facing the cornice 30, and an arcuate convex surface corresponding to the curved concave surface is formed on the outer side 56 of the frame facing away from the cornice 30. The frame is convex outward, which is equivalent to increasing the size of the mouth 30 and the cavity 26 without changing the overall structure of the crystal head 12. With the crystal head 12 having such a mouth 30, when the cable 10 is inserted into the inner cavity 26, the cable 10 can be inserted together with the sheath 34, and the sheath 34 needs to be removed only at a position close to the metal terminal 28. In other words, the portion of the cable that is inserted into the lumen 26 includes a portion ₅₈ from which the sheath is removed and a portion 60 from which the sheath has not been removed (as shown in Figure 5). It is acceptable that only the length of the wire core is broken and this damage does not cause large signal crosstalk. Therefore, this greatly reduces the damage to the lay length of the twisted pair in the inner cavity 26, reducing the influence of signal crosstalk.

[0030] The pressing elastic piece 18 is connected to the side of the crystal head body 14 where the fourth bezel 52 is disposed, that is, the frame on which the elastic piece 18 is pressed is opposed to the outer curved convex frame. The pressing elastic piece 18 is used to lock the crystal head 12 with the interface elastic buckle to prevent accidental falling off when the crystal head 12 is inserted into the electronic device interface. When the crystal head needs to be removed 12 吋, the pressing elastic piece 18 needs to be pressed, and the buckle is released to pull out the crystal head. Since the frame on which the pressing elastic piece 18 is located is opposed to the outwardly curved convex frame, the pressing action of the pressing elastic piece 18 is not affected. The pressing elastic piece 18 is well known to those skilled in the art and therefore will not be described in detail.

[0031] It should be understood that the concave surface and the convex surface are designed as curved surfaces in this embodiment, and in other embodiments, concave surfaces and convex surfaces of other shapes may also be designed, for example, V-shaped convex surfaces and V-shaped concave surfaces. The arched convex surface and the arched concave surface are not limited to the present invention as long as the cross-sectional area of the cornice 30 can be increased and the design requirements are met.

[0032] It should also be understood that, in this embodiment, the crystal head mouth 30 is surrounded by four frames for detailed description. According to the specific design requirements of the crystal head, the crystal head mouth 30 may also be other The number of borders is enclosed as long as the cross-sectional area of the cornice can be increased and the design requirements are met, and the present invention is not limited thereto.

The metal shield cover 16 is sleeved on the crystal head body 14. The metal shield cover 16 is provided with at least one metal elastic piece 62 that can be bent and deformed toward the first bore 44 at a position corresponding to the first bore 44.

[0034] Specifically, referring to FIG. 1, the metal shield 16 has a second bore 64 corresponding to the first bore 44. The metal shield 16 includes a first shield sidewall 66 and a second shield side. The wall 68 and the third shield sidewall 70, wherein the first shield sidewall 66 and the third shield sidewall 70 extend from opposite sides of the second shield sidewall 68, respectively. When the metal shield 16 is sleeved on the crystal head body 14, the first shield sidewall 66 is attached to the first body sidewall 36, and the second shield sidewall 68 is attached to the fourth body sidewall 42. Together, the third shield sidewall 70 is attached to the third body sidewall 40. The first bore 44 is formed on the second body sidewall 38, and the second bore 64 is formed between the first shield sidewall 66 and the third shield sidewall 70. The at least one metal dome 62 is rotatably Connected to first shield side wall 66 and/or third shield side wall 70 on. In this embodiment, the metal elastic piece 62 is set to two, and the two metal elastic pieces 62 are rotatably connected to the first shielding cover side wall 66 and the third shielding cover side wall 70, respectively. The first shield side wall 66 extends away from the edge of the second shield side wall 68 toward the third shield side wall 70 to extend a first metal piece 72 away from the second shield side wall 68. One edge of the first shield cover side wall 66 extends a third metal piece 74. When the metal shield cover 16 is sleeved on the crystal head body 14, the first metal piece 72 and the third metal piece 74 abut the first Two borders 48.

[0035] In the illustrated embodiment, each of the metal domes 62 has a free end 76 that faces the opposing metal dome.

A notch 78 is formed at a corner of the free end 76, and the notches 78 of the two free ends 76 are offset from each other so that the rotation of the two metal domes 62 does not affect each other.

Referring also to FIGS. 1 and 5, the cable 10 further includes a plurality of wire cores 32, a shield mesh 80 covering the plurality of wire cores 32, and a sheath 34 wrapped around the screen mesh 80. The cable 10 is also provided with a ground wire that is in electrical contact with the shield mesh 80. Inside the crystal head 12, a jacket 34 of a length of cable 10 is removed. When the metal dome 62 is bent and deformed toward the first pupil 44, the metal dome 62 is electrically connected to the shield mesh 80 to achieve the effect of the ground shield. Therefore, when assembling the crystal head 12 and the cable 10吋, it is only necessary to remove a section of the cable head and remove the shield mesh of the head section, and retain a shield net 80 close to the unremoved sheath, and then directly The previously processed cable head is inserted into the crystal head cavity 26, and then the metal dome 62 is pressed toward the first bore 44 until it is electrically connected to the shield mesh 80. This installation process is simple and provides good ground shielding. In order to obtain good electrical contact, a section of the screen mesh 80 that is inserted into the cable head of the crystal head cavity 26 should extend at least to the position corresponding to one of the metal domes 62, so that the metal dome 62 can be pressed. Good grounding shielding effect.

[0037] It should be understood that, in this embodiment, the notches 78 are provided at the free ends 76 of the metal domes 62, and the notches 78 are offset from each other in such a manner that the rotation of the two metal domes 62 are not affected by each other, but the present invention is not This is defined, and in other embodiments, other means may be used, such as setting the free end 76 in a gear shape in intermeshing form.

[0038] It should also be understood that in other embodiments, the number of metal domes 62 may also be set to one or more than two depending on design requirements and various factors.

[0039] The first plug 20 is mounted in the fistula 30, and the first plug 20 has an inner bore 82, and the inner bore 82 communicates with the inner cavity 26. . In order to enable the crystal head 12 to accommodate a variety of wire diameters, the crystal head 12 also includes a second plug 84. Referring to FIG. 6 and FIG. 7, the second plug 84 is replaceably mounted in the inner hole 82 of the first plug 20. The second plug 84 has an inner hole 86, and the inner hole 86 of the second plug 84 is The inner cavity 26 is connected, and the cable 10 - end is inserted into the inner cavity 26 from the inner hole 86 of the second plug 84 and electrically connected to the metal terminal 28, and the second plug 84 is pressed against the outer surface of the sheath 3 4 Between the inner walls of a plug 20.

[0040] In the illustrated embodiment, the first plug 20 is a rigid rubber plug and is press fit with the jaw 30. The inner bore 82 of the first plug 20 is a circular inner bore 82 and the second plug 84 is An annular second plug 84 mated with a circular inner bore 82, the second plug 84 being a soft plug, such as an elastomeric pad, whose resiliently contracted nature causes the cable 10 and the second plug 84 to be tightly squeezed together. The inner bore 86 of the second plug 84 is a circular inner bore 86 that mates with the cable 10. It should be noted that the first plug 20 is a hard rubber plug, and the second plug 84 is an artificial rubber mat. This is only one embodiment of the present invention. In other embodiments, the first plug 20 and the second plug are according to specific needs. 84 can also use other materials.

[0041] The first plug 20 includes a plug head 88 that mates with the mouthpiece 30 and a plug wall 90 that extends from the plug head 88 toward the inner cavity 26. When the first plug 20 is inserted into the inner cavity 26, the plug wall 90 is The inner wall of the crystal head body 14 abuts to securely connect the first plug 20 to the crystal head body 14. In the present embodiment, the number of plug walls 90 is two and symmetrically distributed.

[0042] The second plug 84 is provided with at least one stopping portion 92 to prevent the second plug 84 from falling out of the inner hole 82 of the first plug 20. In the illustrated embodiment, the at least one stop portion 92 includes two symmetrical stop portions 92 that are radially outwardly disposed at the periphery of the second plug 84. In the process of axially mounting the second plug 84 into the inner bore 82 of the first plug 20, the second plug 84 is inserted into the first plug 20 from the inner side of the first plug 20, that is, the side on which the plug wall 90 is disposed. In the inner hole 82, the two stoppers 92 are caught on the inner side of the first plug 20 to prevent the second plug 84 from coming off the inner hole 82 of the first plug 20 when the cable 10 is pulled. As shown in Fig. 6, the inner side of the first plug 20 is provided with a retaining groove 93 that engages with the stopper portion 92. It should be understood that in other embodiments, the stops 92 may be other numbers as well. In other embodiments, other embodiments may be employed to prevent the second plug 84 from falling out of the inner bore 82 of the first plug 20 or to secure the second plug 84 in the inner bore 82 of the first plug 20, the present invention. Not limited to this.

[0043] In order to make the connection of the first plug 20 and the crystal head body 14 more stable, in the illustrated embodiment, the first plug 20 further includes a resilient hook 94 extending from the plug 88 toward the inner cavity 26, resilient The hook 94 can be upright A small range of elastic expansion and contraction is realized in the direction. Correspondingly, the crystal head body 14 is provided with a card slot 96 that cooperates with the elastic hook 94. In the present embodiment, the card slot 96 is disposed on the second frame 48 (ie, the second body side wall 38) that is outwardly curved, and the card slot 96 is in communication with the first port 44. After the first plug 20 is pressed into the mouth 30, the plug 88 is located at the mouth 30, and the plug wall 90 abuts against the inner wall of the inner cavity 26, that is, the inner wall of the crystal head body 14, and the elastic hook ₉ 4 is engaged. The first plug 20 and the crystal head body 14 are firmly fixed in the card slot 96. In the present embodiment, the number of the elastic hooks 94 and the card slots 96 are respectively two, but in other embodiments, other numbers may be used.

[0044] It should be understood that, in order to firmly connect the first plug 20 and the crystal head body 14, the embodiment adopts a manner that the elastic hook 94 is matched with the card slot 96. In other embodiments, other implementations may also be used. The method is not limited by the present invention.

[0045] In summary, the present invention provides a crystal head capable of reducing the degree of damage of the lay length. The mouth of the crystal head is surrounded by two relatively short frames and two relatively long frames, and the mouth is connected with the inner cavity of the crystal head. Each frame has a frame side on the side of the cornice and a side of the frame away from the cornice, wherein one long frame is outwardly curved to form a concave surface on the side of the frame facing the cornice, and is formed on the side of the frame facing away from the cornice A convex surface to increase the cross-sectional area of the cornice. The invention also provides a communication cable, wherein by increasing the cross-sectional area of the fistula, only a section of the sheath inserted into the inner cavity is removed, and a section of the sheath close to the fistula can be removed without being removed. The length of the cable whose striking distance is broken, thereby effectively reducing the signal crosstalk between the twisted pairs and enhancing the network transmission effect. The metal shield is provided with a metal elastic piece that can be bent and deformed toward the first pupil so that the metal elastic piece abuts against the shielding net, and has a simple structure and a clever design, thereby achieving a good shielding grounding effect. The present invention also replaceably mounts a second plug in the inner bore of the first plug, and the second plug can be freely replaced according to the wire diameter of the cable, so that the crystal head can be applied to a plurality of wire diameter cables.

[0046] The concepts described herein may be embodied in other forms without departing from the spirit and scope of the invention. The specific embodiments disclosed are to be considered as illustrative and not restrictive. Therefore, the scope of the invention is to be determined by the appended claims rather Any changes which come within the meaning and range of the claims are intended to be within the scope of the claims.

Claims

Claim

[Claim 1] A crystal head capable of adapting to a plurality of wire diameters, comprising a crystal head body having an inner cavity, the crystal head body having opposite first and second ends, the first end being provided with a metal a port, the second end is provided with a port communicating with the inner cavity for inserting a cable into the inner cavity, wherein the crystal head comprises a first plug installed in the mouthpiece, The first plug has an inner hole, and the crystal head further includes a second plug installed in the inner hole of the first plug, and the inner hole of the second plug communicates with the inner cavity.

[Claim 2] The crystal head capable of adapting to a plurality of wire diameters according to claim 1, wherein the first plug is press-fitted with the port, and the inner hole of the first plug is a circle An inner bore, the circular inner bore is in communication with the inner cavity, and the second plug is an annular second plug that cooperates with the circular inner bore.

[Claim 3] The crystal head capable of adapting to a plurality of wire diameters according to claim 2, wherein the first plug includes a plug that cooperates with the tongue and faces the cap from the plug a plug wall extending from the inner cavity, the plug wall abutting against the inner wall of the crystal head body to fixedly connect the first plug to the crystal head body.

[Claim 4] The crystal head capable of adapting to a plurality of wire diameters according to claim 3, wherein the first plug further comprises an elastic hook extending from the plug toward the inner cavity, The crystal head body is provided with a card slot that cooperates with the elastic hook, and when the first plug is pressed into the inner mouth of the mouth, the plug is located at the mouth, and the plug wall abuts On the inner wall of the inner cavity, the elastic hook is caught in the card slot.

[Claim 5] The crystal head capable of adapting to a plurality of wire diameters according to claim 1, wherein the first plug includes a plug that cooperates with the tongue and faces the cap from the plug An elastic hook extending from the inner cavity, the crystal head body is provided with a card slot engaged with the elastic hook, and when the first plug is pressed into the inner mouth of the mouth, the plug is located at the mouth The elastic hook hooks into the card slot.

[Claim 6] The crystal head capable of adapting to a plurality of wire diameters according to claim 4 or 5, wherein the inner cavity of the crystal head has a plurality of side walls of the crystal head body, and one side wall of the crystal head body Providing a first port communicating with the inner cavity, the card slot being disposed on one of the crystal heads And communicating with the first port on the sidewall of the body.

[Claim 7] The crystal head capable of adapting to a plurality of wire diameters according to claim 1, wherein the first plug is a hard rubber plug, and the second plug is an artificial rubber pad.

[Claim 8] The crystal head capable of adapting to a plurality of wire diameters according to claim 1, wherein at least one stopping portion is disposed on a periphery of the second plug, and the inner side of the first plug is provided with A stop groove that cooperates with at least one stop portion is described.

[Claim 9] The crystal head capable of adapting to a plurality of wire diameters according to claim 8, wherein the at least one stopper portion includes two radially convex portions provided at a periphery of the second plug Symmetrical stop.

[Claim 10] A communication cable comprising a cable and a crystal head connected to one end of the cable, the crystal head comprising a crystal head body having a cavity, the crystal head body having an opposite first end And the second end, the first end is provided with a metal terminal, the second end is provided with a mouthpiece communicating with the inner cavity, the cable comprises a plurality of wire cores and covering the plurality of wire cores The sheath includes a first plug mounted in the mouth, the first plug has an inner hole, and the second plug is replaceably mounted with a second inner hole a plug having an inner hole, the inner hole of the second plug is in communication with the inner cavity, and one end of the cable is inserted into the inner cavity from the inner hole of the second plug and is The metal terminal is electrically connected, and the second plug is pressed between the outer surface of the sheath and the inner wall of the first plug.