CN1093496A - Shielded electrical connector - Google Patents

Abstract

Translated fromChinese

一种屏蔽式电气接插件，包括：端子支撑板(41)；支撑在支撑板上，供连接导线(21)用的触点端子(51)；桥接支撑板，并横向延伸超过导线的后缓冲件(43)；围绕支撑板的导电前壳(6)；将支撑板封闭起来的导电后壳(12，14)；推臂(15)，在起码其中一个后壳上与缓冲件接合并将支撑板的接合端推动到相对于前壳(6)的前接合端的最前位置，阻止支撑板向后移位，增强接插件(19)与另一个配套的接插件接合连接过程中的接触摩擦作用。

A shielded electrical connector, comprising: a terminal support plate (41); a contact terminal (51) supported on the support plate for connecting a wire (21); bridging the support plate and extending laterally beyond the rear buffer of the wire part (43); a conductive front shell (6) surrounding the support plate; a conductive rear shell (12, 14) enclosing the support plate; a push arm (15) engaging the bumper on at least one of the rear shells and The joint end of the support plate is pushed to the frontmost position relative to the front joint end of the front shell (6), preventing the support plate from shifting backward, and enhancing the contact friction effect during the joint connection process between the connector (19) and another matching connector .

Description

Translated fromChinese

本发明涉及一种屏蔽式电气接插件，该接插件包括：端子支撑板41;触点端子51，支撑在支撑板41上与各导线连接;后缓冲件43，桥接支撑板41并横向延伸超过各导线;和后壳12，14。将支撑板封蔽起来，该接插件有一个起屏蔽作用的外壳。The present invention relates to a shielded electrical connector, which comprises: aterminal support plate 41; acontact terminal 51, supported on thesupport plate 41 and connected to each wire; arear buffer member 43, bridging thesupport plate 41 and extending laterally beyond the respective leads; and therear housing 12,14. The support plate is enclosed, and the connector has a shielding shell.

美国专利5，158，481公开了一种屏蔽式接插件，该接插件包括：一个端子支撑板;一些支撑在支撑板上与各导线连接的触点端子，和接插件的屏蔽件，该屏蔽件包括：一个在包绕着端子支撑板接合件的前壳上的接合端;和一个将支撑板封蔽起来的导电后壳。U.S. Patent 5,158,481 discloses a shielded connector, which includes: a terminal support plate; some contact terminals supported on the support plate to connect with the wires, and the shield of the connector, the shield The components include: a joint end on a front shell surrounding the terminal support plate joint; and a conductive rear shell enclosing the support plate.

各后壳和前壳借助于通过前壳一些切口的钩件装配在一起。靠近各构件的压缩横杆压在前壳上，使前壳与各后壳之间在电气上不中断。The rear and front shells are assembled together by means of hooks passing through cutouts in the front shell. Compression cross bars close to each component press on the front shell so that there is no electrical interruption between the front shell and each rear shell.

各组成部分，例如端子支撑板和外壳以及前壳都是分立元件，制造成使其各尺寸在尺寸容差的容许范围内变化。各组成部分装配在一起时，这些容差累积起来就使各组成部分可以在装配好的接插件内彼此移位。各组成部分移位，在接插件与另一个配套的电气接插件接合连接时特别有害。这种在接合连接过程中产生的移位必然使端子支撑板相对于外壳和前壳的接合端向后移动。支撑在支撑板上的触点端子在接合连接过程中与支撑板一起向后移动。在接合连接过程中是不希望各触点端子向后移动的，因为触点端子向后移动必然使接插件从另一个配套的电气接插件上脱开。此外，在接合连接过程中，各触点端子经受理想的接触摩擦，将不导电的氧化物和其它能在各触点端子的表面之间产生不希望有的电压降的杂质除去。接触摩擦过程是在接插件接合连接、其各触点撞击另一个配套电气接插件的接合触点时发生的。触点端子向后移动时，撞击作用就减少了。因此，端子由于接插件的各组成部分移位而向后移动时，接触磨擦作用减少了。The constituent parts such as the terminal support plate and the housing and the front housing are discrete components manufactured so that their respective dimensions vary within the allowable range of dimensional tolerances. When the components are assembled together, these tolerances add up to allow the components to shift relative to each other within the assembled connector. Displacement of components is particularly detrimental when the connector is mated with another mating electrical connector. Such displacement during the splice connection necessarily causes the terminal support plate to move rearward with respect to the splice ends of the housing and the front shell. The contact terminals supported on the support plate move backward together with the support plate during the mating connection. Rearward movement of the contact terminals is undesirable during a mating connection since rearward movement of the contact terminals would necessarily disengage the connector from another mating electrical connector. In addition, during the splicing connection, the contact terminals are subjected to ideal contact friction to remove non-conductive oxides and other impurities that can produce an undesired voltage drop between the surfaces of the contact terminals. The contact friction process occurs when a connector engages the connection and its contacts strike the mated contacts of another mating electrical connector. As the contact terminals move back, the impact effect is reduced. Therefore, contact friction is reduced when the terminals move backward due to displacement of the components of the connector.

按照本发明的一个特点，为保证屏蔽件各组成部分之间在电气上不中断并发挥有效的电气屏蔽作用，其中一个后壳按压住另一个后壳，推动另一个后壳向前与前壳接合，保证各组成部分之间在电气上不中断。According to a feature of the present invention, in order to ensure that the components of the shield are not electrically interrupted and provide effective electrical shielding, one of the rear shells presses the other back shell to push the other back shell forward and forward. The shell joint ensures that there is no electrical interruption between the various components.

按照本发明的一个特点，电气接插件的各组成部分装配成使其在电气接插件与另一个配套的电气接插件接合连接时能阻止各组成部分移位。In accordance with a feature of the invention, the components of the electrical connector are assembled so as to resist displacement of the components when the electrical connector is engaged with another mating electrical connector.

按照本发明的另一个特点，其中一个后壳按压端子板，推动端子板向前移，从而使端子板的接合端与前壳的接合端精确就位。According to another feature of the present invention, one of the rear housings presses the terminal board and pushes the terminal board forward so that the mating end of the terminal board is precisely positioned with the mating end of the front housing.

现在参看各附图举例说明本发明的实施例，附图中：Embodiments of the invention are now illustrated with reference to the accompanying drawings, in which:

图1是屏蔽式电气接插件的透视图，接插件的各部分彼此分开着;Figure 1 is a perspective view of a shielded electrical connector with parts of the connector separated from each other;

图2是图1所示的接插件的透视图;Fig. 2 is the perspective view of connector shown in Fig. 1;

图3是图1所示的接插件其各部件部分装配后的纵向剖视图;Fig. 3 is a longitudinal sectional view of the partially assembled parts of the connector shown in Fig. 1;

图4的视图与图3类似，各部分都装配在一起;The view of Fig. 4 is similar to that of Fig. 3, and all parts are assembled together;

图5是图1所示的接插个的端子支撑板和外壳的透视图;Figure 5 is a perspective view of the terminal support plate and the housing of the connector shown in Figure 1;

图6是图1所示的接插件的局部剖视图。Fig. 6 is a partial sectional view of the connector shown in Fig. 1 .

参看图1，屏蔽插头式接插件19包括：绝缘电缆端接部分20，用以端接屏蔽多芯电缆22的绝缘导线21（图2）;和绝缘插头接插部分24，接插部分24向前凸出，供与屏蔽插座式接插件（图中未示出）接合之用。插头接插部分24装有一个向前凸出的端子支撑板41支撑着多触点端子51，端子51具有导线端接部分55（图3和4），供连接到导线21之用。Referring to Fig. 1, the shieldedplug type connector 19 includes: an insulatedcable termination part 20, which is used to terminate an insulated wire 21 (Fig. 2) of a shielded multi-core cable 22; The front protrudes for engagement with shielded socket connectors (not shown).Plug receptacle portion 24 is provided with a forwardly projectingterminal support plate 41 supportingmulti-contact terminals 51 having wire terminating portions 55 (FIGS. 3 and 4) for connection towires 21.

导电屏蔽件由单一的拉延金属前壳6和上金属后壳12以及下金属后壳14形成。前壳6中形成有空腔，这是由上壁46和下壁48以及彼此相向成一定角度的侧壁40围成的空腔。在毗邻后缘的壁46和48中配备有横向延伸的切口50，该后缘形成一个条形的支撑构件118桥接整个切口50的背面。The conductive shield is formed from a single drawnmetal front shell 6 and an upper metalrear shell 12 and a lower metalrear shell 14 . A cavity is formed in thefront case 6, which is a cavity surrounded by anupper wall 46, a lower wall 48 andside walls 40 facing each other at a certain angle. Transversely extendingcutouts 50 are provided in thewalls 46 and 48 adjacent the rear edge forming a strip-shaped support member 118 bridging the entire rear of thecutout 50 .

后壳12呈单一结构，由金属板材冲压成形。后壳12由上壁52和悬垂的侧壁54组成，形成倒过来的沟槽。后壳12的后部有一个用以固定下后壳14的固定构件56从后壁58凸出来。固定构件56由上壁60和悬垂的侧壁62构成，形成一个倒过来的沟槽。上壁60中形成有凹口64，呈颇深的一个凹陷部位。板66偏离壁52的平面向前伸出。一对前伸的翼片68从板66的前沿70伸出。弯曲的旋开钩件72从两翼片68之间的前沿70伸出。Therear shell 12 has a single structure and is formed by stamping a metal plate. Therear housing 12 is composed of anupper wall 52 and dependingside walls 54 forming an inverted channel. Afixing member 56 for fixing the lowerrear case 14 protrudes from therear wall 58 at the rear portion of therear case 12 . The securingmember 56 is formed by anupper wall 60 and dependingside walls 62 forming an inverted channel. Anotch 64 is formed in theupper wall 60 as a rather deep depression.Plate 66 projects forwardly out of the plane ofwall 52 . Extending from a leadingedge 70 of theplate 66 is a pair of forwardly extendingfins 68 . Curvedunscrew hooks 72 extend from the leadingedge 70 between the twowings 68 .

后壳14是用金属板材料压成形的单一结构。后壳14由下壁74和直立的侧壁部分76、78组成，形成一个沟槽。横向向外转的凸缘77在侧壁部分76、78前端。板80偏离壁74的平面向前伸展。电缆应力消除构件86从后壳14的后沿84伸出，它由下壁88和直立的固定用的凸缘90构成，凸缘90的尖端即为逐渐缩小的部分92。翼片68和旋开钩件72从前缘94向前凸出，其结构与结合后壳12所介绍的类似。美国专利5，158，481介绍了后壳12和后壳14的更详细的细节。后壳14上横向伸出的凸缘114嵌入拉制的前壳6后部上横向伸出的凸缘42后面。1992年10月1日申请的美国专利955，554（15319）公开了前壳6和接插件19的更详的细节。参看图3，后壳14钩合固定到前壳6上，并将接插件41封闭起来。后壳12钩合到前壳6上，并摆向后壳14，将接插件19封闭起来。起固定作用的凸缘90后内弯，将固定构件56和电缆22（图2）包起来，解除电缆22的应力，并将后壳12和14连接起来。Therear shell 14 is a unitary structure press-formed from sheet metal material. Therear housing 14 is comprised of alower wall 74 and upstandingside wall portions 76, 78 forming a channel. Frontside wall portions 76 , 78 are laterally outwardly turned flanges 77 . Plate 80 extends forwardly away from the plane ofwall 74 . Extending from therear edge 84 of therear housing 14 is a cable strain relief member 86 formed of alower wall 88 and anupstanding mounting flange 90 which ends at atapered portion 92 . Thetabs 68 and theunscrew hooks 72 protrude forward from thefront edge 94 , similar in structure to that described in connection with therear case 12 . U.S. Patent No. 5,158,481 describesrear housing 12 andrear housing 14 in greater detail. The laterally extendingflange 114 on therear shell 14 fits behind the laterally extendingflange 42 on the rear portion of the drawnfront shell 6 . U.S. Patent 955,554 (15319), filed October 1, 1992, discloses further details of thefront housing 6 andconnector 19. Referring to Fig. 3, therear shell 14 is hooked and fixed to thefront shell 6, and theconnector 41 is closed. Therear shell 12 is hooked onto thefront shell 6 and swings towards therear shell 14 to seal theconnector 19 . Thefixing flange 90 is bent back to wrap thefixing member 56 and the cable 22 (FIG. 2), relieve the cable 22, and connect therear shells 12 and 14.

参看图1、3和4，凸出的后缓冲件43横向桥接端子支撑板41的后端，并一直延伸到该后端。缓冲件43可以例如通过模压介电材料与支撑板41构成一个整体。缓冲件43沿相对横向从延伸在缓冲件43上的导线21向外凸出。缓冲件43的后沿逐渐缩小，与接插件19端子支撑板41的中心轴线相交。Referring to Figures 1, 3 and 4, the protrudingrear bumper 43 laterally bridges the rear end of theterminal support plate 41 and extends all the way to the rear end. Thecushioning member 43 may be integrally formed with thesupport plate 41, for example, by molding a dielectric material. Thebuffer piece 43 protrudes outward from thewire 21 extending on thebuffer piece 43 in a relative transverse direction. The rear edge of thebuffer member 43 tapers gradually and intersects with the central axis of theterminal support plate 41 of theconnector 19 .

后壳12在相应各侧壁54的前外缘上有一组推臂15。举例说，推臂15可以通过在前外缘上刻上凹槽进行加工使它们刚硬。推臂15与后外缘冲件43逐渐缩小的边缘接合，这时缓冲件43横向伸出超过导线21，推动接插件19相对于后壳12并相对于前壳6向前移。推力在轴向上通过接插件19的中间部分作用。用手使后壳12绕旋开钩件72摆动时，由于后壳12至旋开钩件72的长度是推臂15与旋开钩件72之间较短距离的倍数，因而在机械上得益。将接插件19往前推可以补偿将各装配好的部件分开、在累积性容差方面的变化，这些容差具有使接插件19相对于前壳6的接合前缘偏离所要求的位置的倾向。此外，推臂15压在缓冲件43上可以抗衡因接插件19与接合型接插件（图中未示出）接合连接所产生的插入力。Therear housing 12 has a set ofpush arms 15 on the front outer edges of therespective side walls 54 . For example, thepush arms 15 can be machined to make them rigid by notching grooves on the front outer edges. Thepush arm 15 engages the tapering edge of the rear outer edge stamping 43 when thebumper 43 extends laterally beyond thewire 21, pushing theconnector 19 forward relative to therear housing 12 and relative to thefront housing 6. The thrust acts through the middle part of theconnector 19 in the axial direction. When theback shell 12 is swung around theunscrew hook 72 by hand, since the length from theback shell 12 to theunscrew hook 72 is a multiple of the shorter distance between thepush arm 15 and theunscrew hook 72, mechanically beneficial. Pushing theconnector 19 forward compensates for the separation of the assembled components, variations in cumulative tolerances that tend to displace the mating front edge of theconnector 19 relative to thefront housing 6 from the desired position . In addition, thepush arm 15 presses against thebuffer member 43 to resist the insertion force generated by the mating connection of theconnector 19 with the mating connector (not shown).

一组后推臂16从两侧壁54横向向外凸出。推臂16是通过向外冲压侧壁54从而在侧壁54上刻上凹槽而加工出来的，形成面向前方且与后壳14的朝后外缘18接合的经剪切的前缘17。当后壳12摆向后壳14时，垂直切口23的各边缘就形成边缘18，其开口端容纳推臂16。参看图3和图4，后壳12摆动时，推臂16进入切口23中撞到边缘18上，将后壳14往前推，从而将凸缘114往前推与凸缘42的后部接合。向前推动后壳14可以补偿势必使前壳6上的凸缘42偏离后壳14上的凸缘114在累积容差上的各种变化。前壳6与后壳14、12之间的接合保证了电气上的连续性，这是使电气屏蔽起作用必不可少的条件。此外，推臂16压在连缘18上抗衡了因接插件19与接合型接插件（图中未示出）接合连接所产生的插入力。后壳12和14装配好之后，将固定凸缘90套到固定构件56上，于是凸缘90进入凹口64中，将后壳12和14固定在一起，并将电缆22夹持好，使电缆消除应力的作用。A set of push-back arms 16 project laterally outwardly from theside walls 54 . Thepush arm 16 is machined by stamping theside wall 54 outwardly so as to notch theside wall 54 , forming a shearedfront edge 17 that faces forward and engages the rearwardly facingouter edge 18 of therear shell 14 . When therear shell 12 is swung towards therear shell 14, the edges of thevertical cutouts 23 form alip 18, the open end of which receives thepush arm 16. 3 and 4, when therear shell 12 swings, thepush arm 16 enters thenotch 23 and hits theedge 18, pushing therear shell 14 forward, thereby pushing theflange 114 forward to engage with the rear of theflange 42 . Pushing therear shell 14 forward compensates for variations in cumulative tolerance that tend to cause theflange 42 on thefront shell 6 to deviate from theflange 114 on therear shell 14 . The joint between thefront shell 6 and therear shells 14, 12 ensures the electrical continuity which is essential for the electrical shielding to function. In addition, thepush arm 16 presses against theflange 18 to counteract the insertion force generated by the mating connection of theconnector 19 to the mating connector (not shown). After therear shells 12 and 14 are assembled, the fixingflange 90 is inserted on the fixingmember 56, so that theflange 90 enters thenotch 64, therear shells 12 and 14 are fixed together, and the cable 22 is clamped so that Cable strain relief.

参看图5，端子支撑板41和各前壳6一样，是一个分立的元件，绝缘外壳61的形状则制成使其可以装入前壳6中。外壳61有一个后外腔71（图6）供容纳端子支撑板41的前端。触点端子51从端子支撑板41的前端向前凸出，支撑在外壳61的舌片75上。弹性夹持销（其中一个在44处示出）在端子支撑板41正面与端子支撑板41形成一个整体，在外壳61中钩合到从下部切开的凹口63（图中示出了其中一个）中，以防端子支撑板41与外壳61分开。Referring to FIG. 5 , theterminal support plate 41 is a separate component like thefront shells 6 , and the insulatingcase 61 is shaped so that it can be fitted into thefront shell 6 . Thehousing 61 has a rear outer cavity 71 ( FIG. 6 ) for receiving the front end of theterminal support plate 41 . Thecontact terminals 51 protrude forward from the front end of theterminal support plate 41 and are supported on thetongue pieces 75 of thehousing 61 . Resilient clamping pins (one of which is shown at 44) are integrally formed with theterminal support plate 41 on the front face of theterminal support plate 41 and hook intorecesses 63 cut from the underside in the housing 61 (wherein a) to prevent theterminal support plate 41 from being separated from thehousing 61.

参看图6，前壳6上的弹性销（其中一个在65处示出）斜斜地向前壳6的前接合端67伸出，并在外壳61中嵌入从下部切开的凹口（其中一个在69处示出）中，以防前壳6从外壳61脱开。前壳6的接合端67包围着外壳61的接合端73。Referring to Fig. 6, the elastic pins (one of which is shown at 65) on thefront shell 6 protrude obliquely from the frontjoint end 67 of thefront shell 6, and are embedded in the notch cut from the bottom in the shell 61 (wherein One shown at 69), in case thefront case 6 is detached from thehousing 61. Thejoint end 67 of thefront case 6 surrounds thejoint end 73 of thehousing 61 .

前壳6、端子支撑板41和外壳61都按容许尺寸容差范围内的尺寸制作。这些容差使各组成部分在接插件中装配或结合在一起时可以相互配合。这些容差在各组成部分结合在一起时累积起来就要以使它们在装配好的接插件中彼此相对移位。举例说，参看图6，容差使销61在凹口63中由前往后位移。容差使销65在凹口69中从前往后移位。因此，前壳6、外壳61和端子支撑板41都是会在装配好的接插件19中从各自的位置彼此相对移位的部件。Thefront shell 6, theterminal support plate 41 and theshell 61 are all made according to the size within the allowable size tolerance range. These tolerances allow the components to fit together when assembled or bonded together in the connector. These tolerances add up when the components are brought together to displace them relative to each other in the assembled connector. For example, referring to FIG. 6 , the tolerance causes thepin 61 to move forward and backward in thenotch 63 . The tolerance displaces thepin 65 in thenotch 69 from front to back. Therefore, thefront housing 6, thehousing 61, and theterminal support plate 41 are all components that are displaced relative to each other from their respective positions in the assembledconnector 19. As shown in FIG.

接插件19与另一个配套的电气接插件（图中未示出）接合连接时，各部件的移位特别有害。这种在接合连接的过程中产生的位移，会使端子支撑板41相对于接合端67和外壳61及前壳6向后移动。支撑在支撑板41上的触点端子51在接合连接的过程中与支撑板41一起向后移动。在接合连接过程中是不希望触点端子向后移动的，因为触点端子51向后移动会使接插件19从另一个配套的电气接插件（图中未示出）脱开。此外，在接合连接过程中，各接触端子51接触摩擦，将触点端子51表面上不导电的氧化物及其它能在触点端子51表面之间产生不希望有的电压降的杂质除去，这是我们所希望的。接触摩擦是在触点端子51在接合连接的过程中撞击另一个配套的电气接插件时发生的。触点端子51后移动时，撞击作用就减小了。因此，触点端子51因各组成部分移位而向后移动时，接触摩擦作用减小了。按照本发明的这个特点，电气接插件19的各组成部分系装配成使其在电气接插件19与另一个配套的电气接插件（图中未示出）接合连接时阻止各组成部分的移位。Misalignment of the components is particularly detrimental when theconnector 19 is engaged with another mating electrical connector (not shown). This displacement generated during the joint connection will cause theterminal support plate 41 to move backward relative to thejoint end 67 and thehousing 61 and thefront housing 6 . Thecontact terminals 51 supported on thesupport plate 41 move backward together with thesupport plate 41 during the engagement connection. Rearward movement of thecontact terminals 51 is undesirable during a mating connection since rearward movement of thecontact terminals 51 would disengage theconnector 19 from another mating electrical connector (not shown). In addition, during the joint connection process, eachcontact terminal 51 is contacted and rubbed to remove non-conductive oxides on the surface of thecontact terminal 51 and other impurities that can cause an undesirable voltage drop between the surfaces of thecontact terminal 51. is what we hoped for. Contact friction occurs whencontact terminals 51 strike another mating electrical connector during mating connection. When thecontact terminal 51 moves backward, the impact effect is reduced. Therefore, when thecontact terminal 51 moves backward due to the displacement of the constituent parts, the contact friction effect is reduced. According to this feature of the present invention, the components of theelectrical connector 19 are assembled so that they are prevented from dislodging when theelectrical connector 19 is engaged with another mating electrical connector (not shown). .

本发明的好处在于后壳12能在接插件19与另一个配套的接插件接合连接的过程中向前推动接插件19抗衡插入力。本发明的另一个好处在于，电气接插件19是由一些分立部件构成的，这些部件保证其接合端达到相对于接插件19的接合端预定的位置。The advantage of the present invention is that therear shell 12 can push theconnector 19 forward against the insertion force during the mating connection of theconnector 19 with another mating connector. Another advantage of the present invention is that theelectrical connector 19 is formed of discrete components which ensure that the mating ends thereof attain a predetermined position relative to the mating ends of theconnector 19 .

本发明的其它实施例、目的和优点应包括在本说明书所附权利要求书的精神实质和范围内。Other embodiments, objects and advantages of the present invention should be included within the spirit and scope of the appended claims of this specification.

Claims (9)

1, a kind of shielded electrical connector comprises: terminal support plate (41); Contact terminal (51) is supported on the described supporting bracket (41), uses for connecting lead; Back bolster (43), described supporting bracket of bridge joint and horizontal expansion exceed each lead; With conduction back cover (12,14), supporting bracket is closed, described connector is characterised in that:

Be equipped with push arm (15) to engage on one of them back cover with bolster, and promote this back cover forward, also the preceding abutting end of described supporting bracket is pushed to respect to the conduction fore shell and is sealing supporting bracket and the front position of the preceding abutting end that is connected with this back cover.

2, according to the shielded electrical connector of claim 1, it is characterized in that, it comprises: shell (61), round this supporting bracket, described supporting bracket is connected with this shell, described push arm then engages with described bolster, and promotes described supporting bracket and make its bump shell and the preceding abutting end of shell is pushed to front position with respect to the preceding abutting end of described fore shell.

3, according to the shielded electrical connector of claim 1, it is characterized in that, each push arm by impress out on one of them back cover some before outer rim form.

According to the shielded electrical connector of claim 1, it is characterized in that 4, described bolster is made up of the part that supporting bracket and its central axis intersect.

According to the shielded electrical connector of claim 1, it is characterized in that 5, outer rim engages with described push arm after the taper of described bolster.

6, according to the shielded electrical connector of claim 1, it is characterized in that, one group of push arm on one of them back cover engages with the back outer rim of another back cover, and this group push arm is pushed against the flange on described another back cover forward the rear portion of described conduction fore shell upper flange.

According to the shielded electrical connector of claim 6, it is characterized in that 7, it comprises:

Some otch on described another back cover, its openend hold second group of push arm when first back cover is flapped toward second back cover.

According to the shielded electrical connector of claim 7, it is characterized in that 8, the back outer rim of each otch engages with second group of push arm.

9, according to the shielded electrical connector of claim 1, it is characterized in that,

The each several part of back cover is fixed together and each lead that is connected to contact terminal is play a part to eliminate stress.

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