CN205543511U - Quartzy head and communication cable with metallic shield cover - Google Patents

Abstract

The utility model provides the utility model relates to a quartzy head of metallic shield cover, including quartzy first body and the metallic shield cover that has the inner chamber, quartzy first body has opposite first end and second end, first end is equipped with the metal terminal, second end be equipped with with the inner chamber intercommunication inserts for a cable the opening of inner chamber, the metallic shield envelope of hood is established on the quartzy first body, quartzy first body be equipped with one with the first trompil of inner chamber intercommunication, metallic shield covers and corresponds a holing position is equipped with and moves towards an at least metal shrapnel of shape is sold off to first trompil inflection to realize the shield function. The utility model discloses a have the quartzy first simple structure of metallic shield cover, design benefit can conveniently realize ground connection, and the cost is lower, easily popularizes and applies.

Description

There is crystal head and the communication cables of metallic shield

Technical field

The present invention relates to a kind of crystal head, particularly to a kind of crystal head with metallic shield And communication cables.

Background technology

Crystal head is the interface unit that cable connects that particularly network is important in connecting, and is a kind of energy Insert device port along fixed-direction and crystal head self can be prevented from moulding that device port comes off Material joint.Crystal head is mainly used in connecting the dresses such as network interface card port, hub, switch and phone Put, it is adaptable to equipment room or the field terminating of horizontal subsystem.

In order to improve signal quality, reduce interference, more novel technical scheme is to arrange band gold Belong to radome crystal head body, anti-tampering by the way of welding ground on metallic shield, Shielding noise.But existing crystal head it is complex by the method for metallic shield ground connection, Implement and be rather difficult to, and relatively costly, it is not easy to promote the use of.

Summary of the invention

In view of this, the present invention provide a kind of grounding function convenient and simple there is metallic shield Crystal head.

The present invention also provides for a kind of communication cables.

A kind of crystal head with metallic shield, including crystal head body and the gold with inner chamber Belonging to radome, described crystal head body has the first contrary end and the second end, described first end Being provided with metal terminal, described second end is provided with and inserts for a cable described with described inner space The opening of inner chamber, described metallic shield is set on described crystal head body, described crystal head Body is provided with first perforate of one and described inner space, described metallic shield corresponding described the One position of opening is provided with can be towards at least one metal elastic of described first perforate inner bending deformation Sheet.

In one embodiment, described crystal head body has several body sidewalls, described several Body sidewall surrounds the described inner chamber of formation, on described first perforate this body sidewall formed therein.

In one embodiment, another this body sidewall connects one to be used for and a connector socket buckle Connect pushes shrapnel, and described adapter socket is in order to house and to be electrically connected with described crystal head.

In one embodiment, described crystal head body has four these body sidewalls, including first Body sidewall, second body sidewall, the 3rd body sidewall and the 4th body sidewall, described four bases Body sidewall surrounds the described inner chamber of formation, wherein said the first noumenon sidewall and the 3rd body sidewall phase Right, described second body sidewall and the 4th body sidewall are relative, and described first perforate is formed at institute Stating on second body sidewall, described metallic shield has one corresponding with described first perforate Two perforates, described in push shrapnel and be arranged on described 4th body sidewall.

In one embodiment, described metallic shield includes the first shield sidewall, secondary shielding Cover sidewall and the 3rd shield sidewall, described first shield sidewall and the 3rd shield sidewall are divided Not extending from two relative edges of described secondary shielding cover sidewall, described second perforate is formed at described Between first shield sidewall and the 3rd shield sidewall, described at least one metal clips is rotatable Be connected in described first shield sidewall and/or the 3rd shield sidewall.

In one embodiment, the quantity of described metal clips is two, and described two metal clips divide It is not rotatably connected in described first shield sidewall and the 3rd shield sidewall.

In one embodiment, each described metal clips have one be directed towards metal clips from By end, a jiao of described free terminal arranges a breach, and the breach of two free terminals is mutual Stagger, so that the rotation of two metal clips is independent of each other.

In one embodiment, the opening of described second end is by first, second, third and fourth limit Frame surrounds, and each frame has the scuncheon being positioned at described opening and the limit deviating from described opening Outside frame, described second frame be bent outwardly protruding with at it towards the scuncheon of described opening Upper formation one concave surface, and outside the frame that it deviates from described opening on form a convex surface.

In one embodiment, described first shield sidewall is away from described secondary shielding cover sidewall One edge extends one first sheet metal, described 3rd shielding towards described 3rd shield sidewall Cover sidewall away from an edge of described secondary shielding cover sidewall towards described first shield sidewall Extend one the 3rd sheet metal, described first and the 3rd sheet metal abut on described second frame.

The present invention also provides for a kind of communication cables, including cable be connected to described cable one end Crystal head, described crystal head includes crystal head body and a metallic shield with inner chamber, institute Stating metallic shield to be set on described crystal head body, described crystal head body has contrary First end and the second end, described first end is provided with metal terminal, and described second end is provided with described The opening of inner space, described cable includes several strand core, is coated with the shielding of described several strand core Net and be coated with the sheath of described gauze screen, described cable one end from described opening insert described in Chamber is also electrically connected with described metal terminal, and described crystal head body is provided with one with described inner chamber even The first logical perforate, corresponding described first position of opening of described metallic shield is provided with can be towards Described first perforate inner bending deformation at least one metal clips so that described metal clips to Can be resisted against on described gauze screen during described first perforate inner bending deformation.

In sum, the present invention provides a kind of crystal head with metallic shield, metallic shield The enclosure is located on crystal head body, and crystal head body has first perforate of one and inner space, Metallic shield is provided with second perforate corresponding with the first perforate, and cable includes being wrapped in removal Gauze screen on several strand cores of jacket portions, corresponding first position of opening of metallic shield is provided with Can towards first perforate inner bending deformation at least one metal clips so that metal clips to Can be resisted against on described gauze screen during the first perforate inner bending deformation, thus be grounded shielding merit Energy.The crystal head simple in construction with metallic shield of the present invention, designs ingenious, can facilitate Being grounded, cost is relatively low, it is easy to popularization and application.

Accompanying drawing explanation

Fig. 1 is crystal head of the present invention and the exploded perspective view of cable one embodiment.

Fig. 2 is the assembling schematic diagram that Fig. 1 crystal head is connected with cable.

Fig. 3 is the broken isometric structural representation of the crystal head of Fig. 1.

Fig. 4 is the perspective view of the crystal head of Fig. 1.

Fig. 5 is the part section structural representation that crystal head is connected with cable.

Fig. 6 is the three-dimensional exploded view of stopper second embodiment of crystal head of the present invention.

Fig. 7 is the assembling schematic diagram that the crystal head of the stopper comprising Fig. 6 is connected with cable.

Detailed description of the invention

Before describing the embodiments in more detail, it should be understood that the invention is not restricted in the application Detailed construction hereafter or described in accompanying drawing or arrangement of elements.The present invention can be that other modes are real Existing embodiment.Furthermore, it is to be understood that wording used herein and term are solely for retouching State purposes, should being construed as limiting property not explain." including " used herein, " comprising ", " tool Have " etc. similar wording mean and comprise items listed thereafter, its equivalent and other additional things ?.Particularly, when describing " certain element ", the present invention does not limit the number of this element Amount is one, it is also possible to include multiple.

As shown in Figures 1 to 5, the present invention provides a kind of communication cables, including cable 10 He It is connected to the crystal head 12 of cable 10 one end.Crystal head 12 includes crystal head body 14, gold Belong to radome 16, push shrapnel 18 and one first stopper 20.

Crystal head body 14 has first contrary end the 22, second end 24 and is formed at institute State the inner chamber 26 between the first end 22 and the second end 24.First end 22 is provided with metal end Son 28, the second end 24 is provided with the opening 30 connected with inner chamber 26, and the first stopper 20 is arranged on In opening 30.Cable 10 includes several strand core 32 and the sheath 34 of cladding number strand core, Cable 10 one end from opening 30 insert inner chamber 26 and with the gold being arranged at crystal head the first end 22 Belong to terminal 28 to be electrically connected with.

In an illustrated embodiment, crystal head body 14 has four these body sidewalls, including 36, second body sidewall 38 of one body sidewall, the 3rd body sidewall 40 and the 4th body sidewall 42.This body sidewall of aforementioned four surrounds the inner chamber 26 forming crystal head body 14, wherein, the One body sidewall 36 is relative with the 3rd body sidewall 40, second body sidewall 38 and the 4th Body sidewall 42 is relative.Second body sidewall 38 be provided with one connect with inner chamber 26 first open Hole 44, the 4th body sidewall 42 is connected to the pressing snapped connection with a connector socket Shell fragment 18, described adapter socket is the socket on an electronic equipment, in order to house and and water Crystal-tipped 12 is electrically connected with.

The opening 30 of crystal head the second end 24 is surrounded by several frames of crystal head body 14, Each frame has the scuncheon being positioned at opening 30 and deviates from outside the frame of opening 30, its In frame be bent outwardly protruding with recessed towards forming one on the scuncheon of opening 30 at it Face, outside the frame that it deviates from opening 30 on form a convex surface.

In an illustrated embodiment, crystal head opening 30 is surrounded by four frames, including first Frame the 46, second frame the 48, the 3rd frame 50 and the 4th frame 52, wherein the first frame 46 is two relative minor faces with the 3rd frame 50, and the second frame 48 and the 4th frame 52 are two Relative long limit, the frame being bent outwardly projection is one of them long limit.Wherein, four frames It is positioned at four these body sidewalls towards at the outer rim in crystal head body 14 second end 24 direction.Specifically For, the first frame 46 is positioned at the outer rim of the first noumenon sidewall 36, the second 48, frame At the outer rim of second body sidewall 38, the 3rd frame 50 is positioned at the 3rd body sidewall 40 At outer rim, the 4th frame 52 is positioned at the outer rim of the 4th body sidewall 42.Second frame 48 Between the first opening 44 and crystal head the second end 24.

In the present embodiment, the frame being bent outwardly projection is the second frame 48, the second frame 48 Have and be positioned at the scuncheon 54 of opening 30 and deviate from outside the frame of opening 30 56, the Two frames 48 are bent outwardly projection and form an arc at it on the scuncheon 54 of opening 30 Shape concave surface, formed on 56 outside the frame that it deviates from opening 30 one with described arc-shaped concave pair The arc convex answered.Frame outwardly convex, is equivalent to do not changing crystal head 12 overall structure On the basis of, increase opening 30 and the size of inner chamber 26.Employing has such opening 30 Crystal head 12, when cable 10 inserts inner chamber 26, cable 10 can be together with sheath 34 Insert together, only just need in the position close to metal terminal 28 to remove sheath 34.Change sentence Talking about, the cable part inserting inner chamber 26 includes one section of removed part of sheath 58 and one section The most removed part of sheath 60 (as shown in Figure 5), so only has the lay of one section of core It is destroyed, and this destruction does not results in big signal cross-talk, is acceptable.Therefore, So it is greatly reduced the destruction of lay twisted-pair feeder being positioned in inner chamber 26, reduces signal cross-talk Impact.

Push shrapnel and 18 be connected to crystal head body 14 that side of the 4th frame 52 is set, That is push shrapnel 18 places frame be bent outwardly projection frame relative.Pressing Shell fragment 18 for after crystal head 12 inserts in electronic equipment interfaces, with interface flexibility buckle with Pin crystal head 12 and prevent unexpected coming off.When crystal head 12 pulled out by needs, need pressing This pushes shrapnel 18, releases buckle, could be extracted by crystal head.Due to 18 institutes that push shrapnel Frame be bent outwardly projection frame relative, push shrapnel 18 push action will not It is affected.Push shrapnel and 18 be well known to those skilled in the art, the most no longer Describe in detail.

It should be appreciated that described concave surface and convex design are arcwall face by the present embodiment, In other embodiments, it is also possible to be designed to concave surface and the convex surface of other shapes, such as, V-arrangement is convex Face and V-arrangement concave surface, or arch convex surface and arch concavity, as long as the horizontal stroke of opening 30 can be made Sectional area increases and meets design requirement, and this is not defined by the present invention.

It should also be understood that the present embodiment is enclose by four frames with crystal head opening 30 One-tenth is described in detail, according to the specific design needs of crystal head, crystal head opening 30 Can also be to be surrounded by the frame of other quantity, if can make opening cross-sectional area increase and Meeting design requirement, this is not defined by the present invention.

Metallic shield 16 is set on crystal head body 14, metallic shield 16 correspondence One perforate 44 position is provided with can be towards at least one metal elastic of the first perforate 44 inner bending deformation Sheet 62.

Specifically, refer to Fig. 1, it is right with the first perforate 44 that metallic shield 16 has one The second perforate 64 answered, metallic shield 16 includes the first shield sidewall 66, secondary shielding Cover sidewall 68 and the 3rd shield sidewall 70, wherein the first shield sidewall 66 and the 3rd screen Cover cover sidewall 70 to extend from two relative edges of secondary shielding cover sidewall 68 respectively.Work as metallic shield When cover 16 is sheathed on crystal head body 14, the first shield sidewall 66 and first side Wall 36 fits together, and secondary shielding cover sidewall 68 and the 4th body sidewall 42 are fitted in one Rising, the 3rd shield sidewall 70 fits together with the 3rd body sidewall 40.First perforate 44 are formed on second body sidewall 38, and the second perforate 64 is formed at the first shield sidewall 66 and the 3rd between shield sidewall 70, and described at least one metal clips 62 connects rotationally It is connected in the first shield sidewall 66 and/or the 3rd shield sidewall 70.Gold in the present embodiment Belonging to shell fragment 62 and be set to two, said two metal clips 62 is rotatably connected to first respectively In shield sidewall 66 and the 3rd shield sidewall 70.First shield sidewall 66 is away from One edge of two shield sidewall 68 extends one first metal towards the 3rd shield sidewall 70 Sheet 72, the 3rd shield sidewall 70 away from an edge of secondary shielding cover sidewall 68 towards One shield sidewall 66 extends one the 3rd sheet metal 74, when metallic shield 16 is set in Time on crystal head body 14, the first sheet metal 72 and the 3rd sheet metal 74 abut in the second limit On frame 48.

In an illustrated embodiment, each metal clips 62 has one and is directed towards metal clips Free terminal 76, a jiao of free terminal 76 arranges a breach 78, and two free terminals The breach 78 of 76 mutually staggers, so that the rotation of two metal clips 62 is independent of each other.

Please also refer to Fig. 1 and Fig. 5, cable 10 also includes that several strand core 32, cladding are described The gauze screen 80 counting strand core 32 and the sheath 34 being wrapped on gauze screen 80.Cable 10 It is additionally provided with the earth lead in electrical contact with gauze screen 80.Inside crystal head 12, there is one section of line The sheath 34 of cable 10 is removed.When metal clips 62 deforms towards the first perforate 44 inner bending Time, metal clips 62 is resisted against on gauze screen 80 and is electrically connected, thus reaches earthing The effect covered.Therefore, when assembling crystal head 12 with cable 10, only need to be by cable head One section of sheath is removed, and removes one section of gauze screen of head, retains one section near the sheath do not removed Gauze screen 80, then directly cable head good for aforementioned processing is inserted crystal head inner chamber 26 In, then metal clips 62 is pressed, until it is resisted against screen towards the direction of the first perforate 44 Cover and be electrically connected on net 80.This installation process is simple, and is obtained in that good Grounded shield effect.In order to obtain good in electrical contact, it is inserted into crystal head inner chamber The one section of gauze screen 80 retained on the cable head of 26 should at least extend to one of them gold corresponding Belong to the position of shell fragment 62, so make to press metal clips 62 and can obtain good earthing Cover effect.

It should be appreciated that the free terminal 76 at metal clips 62 arranges scarce in the present embodiment Mouthfuls 78, and the mode making breach 78 mutually stagger makes the rotation of two metal clips 62 mutual Unaffected, but this is not defined by the present invention, in other embodiments, it is possible to use Other modes, such as, be set to engage each other the gear-like of form by free terminal 76.

It should also be understood that in other embodiments, according to design requirement and each side factor, The quantity of metal clips 62 can also be set to one or more than two.

First stopper 20 is arranged in opening 30, and the first stopper 20 has an endoporus 82, interior Hole 82 connects with inner chamber 26.So that crystal head 12 can adapt to multiple line footpath, crystal 12 also include the second stopper 84.Please also refer to Fig. 6 and Fig. 7, the second stopper 84 can be more Being installed in changing in the endoporus 82 of the first stopper 20, the second stopper 84 has an endoporus 86, The endoporus 86 of the second stopper 84 connects with inner chamber 26, and cable 10 one end is from the second stopper 84 Endoporus 86 insert inner chamber 26 and be electrically connected with metal terminal 28, the second stopper 84 simultaneously It is compressed between the inwall of sheath 34 outer surface and the first stopper 20.

In an illustrated embodiment, the first stopper 20 is hard plug, and is pressed into opening 30 Coordinating, the endoporus 82 of the first stopper 20 is circular inner hole 82, and the second stopper 84 is and circle Annular the second stopper 84 that endoporus 82 coordinates, the second stopper 84 is cork stopper, such as people Making rubber blanket, the character of its elastic shrinkage makes closely to squeeze between cable 10 and the second stopper 84 Forcing together, the endoporus 86 of the second stopper 84 is the circular inner hole 86 coordinated with cable 10. It should be noted that, the first stopper 20 is hard plug, the second stopper 84 is artificial rubber blanket It is only one embodiment of the present invention, in other embodiments, fills according to real needs first Son 20 and the second stopper 84 can also use other material.

First stopper 20 include the chock plug 88 with opening 30 form fit and from chock plug 88 towards The plug wall 90 that inner chamber 26 extends, after the first stopper 20 is filled in inner chamber 26, fills in wall 90 With the inwall of crystal head body 14 against, thus by the first stopper 20 and crystal head body 14 Fixing connection.In the present embodiment, the quantity of plug wall 90 is two and symmetrical.

Second stopper 84 periphery is provided with at least one stop section 92, with prevent the second stopper 84 from The endoporus 82 of the first stopper 20 comes off.In an illustrated embodiment, described at least one block Portion 92 includes the two radially protruding symmetrical stop sections 92 being located at the second stopper 84 periphery. During the endoporus 82 that the second stopper 84 is installed vertically the first stopper 20, the Two stoppers 84 are from the inner side of the first stopper 20, and the first plug is filled in the side i.e. arranging plug wall 90 In the endoporus 82 of son 20, two stop sections 92 are stuck on the inner side of the first stopper 20, to prevent When cable 10 is pullled, the second stopper 84 comes off from the endoporus 82 of the first stopper 20. As shown in Figure 6, the inner side of the first stopper 20 is provided with the retaining groove 93 coordinated with stop section 92. Should be appreciated that in other embodiments, stop section 92 can also be other quantity.At other In embodiment, it would however also be possible to employ other embodiments prevent the second stopper 84 from the first stopper The endoporus 82 of 20 comes off, or the second stopper 84 is fixed on the endoporus of the first stopper 20 In 82, this is not limited by the present invention.

So that the first stopper 20 is the most firm with the connection of crystal head body 14, shown Embodiment in, the first stopper 20 also includes the elasticity extended from chock plug 88 towards inner chamber 26 Snap fit 94, elastic clamping hook 94 can realize the elastic telescopic of little scope by the vertical direction, corresponding Ground, crystal head body 14 is provided with the draw-in groove 96 coordinated with elastic clamping hook 94.At the present embodiment In, draw-in groove 96 is arranged on the second frame 48 (i.e. second body sidewall 38) being bent outwardly projection On, and draw-in groove 96 connects with the first perforate 44.It is pressed in opening 30 at the first stopper 20 Time, chock plug 88 is positioned at opening 30, and plug wall 90 is resisted against inner chamber 26 inwall, i.e. crystal head On the inwall of body 14, elastic clamping hook 94 snaps in draw-in groove 96, with by the first stopper 20 with Crystal head body 14 fixedly secures.In the present embodiment, elastic clamping hook 94 and draw-in groove 96 Quantity is respectively 2, but can be other numbers in other embodiments.

It should be appreciated that in order to be connected firm with crystal head body 14 for the first stopper 20, The present embodiment uses and arranges the mode that elastic clamping hook 94 coordinates with draw-in groove 96, in other embodiments In, it would however also be possible to employ other embodiments, this is not limited by the present invention.

In sum, the present invention provides a kind of crystal head that can reduce lay destructiveness, water The opening of crystal-tipped is surrounded by two relative short frames and two relative long margin frames, opening and crystal head inner chamber Connection, each frame has and is positioned at the border side of opening and away from the border side of opening, Qi Zhongyi Individual long margin frame extroversion bend relief is to form a concave surface, at it at it on the border side of opening Deviate from and on the border side of opening, form a convex surface, increase the cross-sectional area of opening with this.This Bright also provide for a kind of communication cables, make to insert inner chamber by increasing the cross-sectional area of its opening Cable part only has one section of sheath to be removed, and one section of sheath of close opening can not spend Remove, thus shorten the length of the destroyed cable of lay, thus effectively reduce twisted-pair feeder it Between signal cross-talk, enhance network laser propagation effect.Metallic shield can be towards by setting The metal clips of the first perforate inner bending deformation, so that metal clips is resisted against on gauze screen, Simple in construction, designs ingenious, thus realizes good bonding effect.The present invention is also Being replaceably mounted one second stopper in the endoporus of one stopper, the second stopper can be according to the line of cable Footpath and freely change, so that crystal head can be suitable for the cable in multiple line footpath.

Concepts described herein may be embodied in the case of without departing from its spirit and characteristic Other form.Disclosed specific embodiment should be considered exemplary rather than restrictive.Cause This, the scope of the present invention is by appended claim rather than according to these descriptions before It is determined.Any change in the letter and equivalency range of claim all should belong to The scope of these claim.

Claims (10)

1. a crystal head with metallic shield, including crystal head body and the metallic shield with inner chamber, described crystal head body has the first contrary end and the second end, described first end is provided with metal terminal, described second end be provided with described inner space for one cable insert described inner chamber opening, described metallic shield is set on described crystal head body, it is characterized in that, described crystal head body is provided with first perforate of one and described inner space, corresponding described first position of opening of described metallic shield is provided with can be towards at least one metal clips of described first perforate inner bending deformation.

Having the crystal head of metallic shield the most as claimed in claim 1, it is characterised in that described crystal head body has several body sidewalls, described several body sidewalls surround the described inner chamber of formation, on described first perforate this body sidewall formed therein.

There is the crystal head of metallic shield the most as claimed in claim 2, it is characterised in that connecting one on another this body sidewall and be used for and pushing shrapnel that a connector socket snaps connection, described adapter socket is in order to house and to be electrically connected with described crystal head.

There is the crystal head of metallic shield the most as claimed in claim 3, it is characterized in that, described crystal head body has four these body sidewalls, including the first noumenon sidewall, second body sidewall, 3rd body sidewall and the 4th body sidewall, described four these body sidewalls surround the described inner chamber of formation, wherein said the first noumenon sidewall and the 3rd body sidewall are relative, described second body sidewall and the 4th body sidewall are relative, described first perforate is formed on described second body sidewall, described metallic shield has second perforate corresponding with described first perforate, described pushing shrapnel is arranged on described 4th body sidewall.

There is the crystal head of metallic shield the most as claimed in claim 4, it is characterized in that, described metallic shield includes the first shield sidewall, secondary shielding cover sidewall and the 3rd shield sidewall, described first shield sidewall and the 3rd shield sidewall extend from two relative edges of described secondary shielding cover sidewall respectively, described second perforate is formed between described first shield sidewall and the 3rd shield sidewall, and described at least one metal clips is rotatably connected in described first shield sidewall and/or the 3rd shield sidewall.

Having the crystal head of metallic shield the most as claimed in claim 5, it is characterised in that the quantity of described metal clips is two, described two metal clips are rotatably connected in described first shield sidewall and the 3rd shield sidewall respectively.

There is the crystal head of metallic shield the most as claimed in claim 6, it is characterized in that, each described metal clips has a free terminal being directed towards metal clips, one jiao of described free terminal arranges a breach, and two the breach of free terminal mutually stagger, so that the rotation of two metal clips is independent of each other.

There is the crystal head of metallic shield the most as claimed in claim 5, it is characterized in that, the opening of described second end is surrounded by first, second, third and fourth frame, each frame has the scuncheon being positioned at described opening and deviates from outside the frame of described opening, described second frame be bent outwardly protruding with at it towards forming a concave surface on the scuncheon of described opening, and outside the frame that it deviates from described opening on form a convex surface.

There is the crystal head of metallic shield the most as claimed in claim 8, it is characterized in that, described first shield sidewall extends one first sheet metal away from an edge of described secondary shielding cover sidewall towards described 3rd shield sidewall, described 3rd shield sidewall extends one the 3rd sheet metal away from an edge of described secondary shielding cover sidewall towards described first shield sidewall, described first and the 3rd sheet metal abut on described second frame.

null10. a communication cables，Including cable and the crystal head being connected to described cable one end，Described crystal head includes crystal head body and a metallic shield with inner chamber，Described metallic shield is set on described crystal head body，Described crystal head body has the first contrary end and the second end，Described first end is provided with metal terminal，Described second end is provided with and the opening of described inner space，Described cable includes several strand core、It is coated with the gauze screen of described several strand core and is coated with the sheath of described gauze screen，Described cable one end is inserted described inner chamber from described opening and is electrically connected with described metal terminal，It is characterized in that，Described crystal head body is provided with first perforate of one and described inner space，Corresponding described first position of opening of described metallic shield is provided with can be towards at least one metal clips of described first perforate inner bending deformation，So that described metal clips can be resisted against on described gauze screen when described first perforate inner bending deformation.