JP2001507512A - Electrical connector with improved connector shield and multipurpose strain relief - Google Patents

Abstract

An electrical connector (10) having an improved connector shield and a multi-purpose strain relief (72) includes an electrically insulative contact support member (32) having a rearward cable termination end (38) and a plurality of electrical contacts (34) positioned on the support member (32) forward of the termination end (38). An electrically conductive contact shield housing (58) having an outer (66) and inner walls (68, 70) surrounds the contact support member (32) and extends rearward beyond the electrical contacts (34) to shield both the contacts (34) and the discrete conductors (18) of a multi-conductor cable. The connector includes an electrically conductive strain relief device (72) comprised of mirrored strain relief members (72, 74) which are in electrical communication with the shield housing (58) and the cable ground thereby providing a ground path between the cable ground (16) and the contact shield housing (58).

Description

DETAILED DESCRIPTION OF THE INVENTION                      Improved connector shielding and Electrical connector with multipurpose strain relief Field of the invention   The present invention generally relates to improvements in electrical data connectors. More The present invention provides an improved connector ground shield and multi-purpose strain relief. The present invention relates to a compact data connector provided.                                Background of the Invention   In the field of data / communication technology, information in the form of electrical signals is increasing at an ever increasing rate Has been transmitted. Industry also wants to transmit information at higher data rates At the same time as miniaturizing hardware to improve portability and ease of use. We recognize the need. To keep pace with these advances, such hard Wiring technology including electrical cables and electrical connectors for connecting hardware is also remarkable Changed. Today, electricity is much smaller and can transmit data at higher speeds. Connectors and electrical cables can be used.   The constant advancement of connection technology is not without its problems. Higher for electrical connectors When requesting high-speed data transmission while reducing the size of electrical connectors, Crosstalk between adjacent parts of the rectifier is a factor that must be addressed. Change In addition, these components are typically used in close proximity to other electronic components, so individual components Nectar components must be shielded from electromagnetic and radio frequency interference. these Interference can adversely affect connector performance levels, especially at high data rates. There is it.   US Patents 5,538,440 and Rodrigues et al. U.S. Pat. No. 5,564,940, which is incorporated herein by reference, is incorporated by reference. Is a compact electrical connector with individual insulated core terminations for multi-core cables Is disclosed. This connector has a plurality of electrical contacts with insulating displacement contacts. Includes an insulated connector housing that supports the point. This connector also provides individual contact pairs Is characterized by an internal contact shield for shielding from adjacent contact pairs. this The shield has a "cross-shaped" shape to ensure horizontal and vertical shielding of the contacts Die-cast metal members having orthogonal horizontal and vertical walls. These features The disclosed contact shield also provides for electrical grounding between the cable and the contact shield. Extending grounding element for electrical engagement with a multi-core cable to maintain electrical continuity of the including. The cable receiving end of the connector also helps secure the cable to the connector A two-element strain relief device that performs This strain relief device Cable braid, the cable is connected to the connector To keep friction. Ensure electrical continuity between the cable blade and the contact shield Cable shield that electrically engages the extended ground element of the contact shield A separate metal grounding clip is located between the raid and the strain relief device. ing.   One of the disadvantages of the connector disclosed above is that the horizontal And the vertical wall extends only to the insulation displacement contact part of the electrical contact That is. Therefore, the distance between the end of the cable blade and the insulation displacement contact The individual cores of the multicore cable remain unshielded. In addition, conventional connectors Strain relief devices generally provide the ability to secure cables to connectors Just do it. Cable grounding is usually performed by one or more separate components, Ground clip as interface between bull ground blade and contact shield Is complete by using. This is the connector Is becoming more and more complex, increasing its cost.   Thus, the overall shielding and individual shielding of the electrical contacts and of the ends of the core wires engaged therewith It is desirable to provide an electrical connector that ensures shielding. Also, the cable ground Cable to ensure electrical continuity between the connector and the connector contact shield. It is desirable to eliminate the need for separate components in the nectar.                                Summary of the Invention   The present invention provides an electrical connector for terminating individual cores of a multicore cable. That is its purpose.   It is a further object of the present invention to provide an electrical contact for a connector and a multi-core cable engaged therewith. Electrical connector having a contact shield for shielding individual core wires of And there.   Still another object of the present invention is to provide a connector for connecting a multi-core cable to a connector. Electrical grounding of the cable to the power supply, thereby eliminating the need for additional components Another object of the present invention is to provide a strain relief device for electric contacts.   According to one aspect of the invention, an improved electrical connector generally includes a rear cable An electrically insulating contact support member having a termination, and a plurality of electrical contacts supported thereon; , A conductive shield housing substantially surrounding the support member. Ko The connector also snaps into place to substantially seal the contacts and shield. It is also desirable to provide an electrically insulating housing in the form of a part. Contact is multi-core cable A conventional core end electrically connected to the individual cores of the core. Place the core wire in a predetermined place Snaps into the contact support member to secure it in place, and the dressing A dressing block may be provided. Supports the core support of the contact support In order to take into account the length of the separated individual cores of the multicore cable to be selected, the contacts Arranged on the contact support member, the terminal end is before the terminal end of the support member So that they are separated from each other. Contact shield housing substantially surrounds the contacts Outer wall and one arranged to physically separate one or more contacts from another contact Including the above inner wall. The contact support member is provided in one or more of the contact shield housings. It has one or more longitudinal slots between the contacts to accommodate the wall. Conventional Unlike technology connectors, the inner and outer walls of the contact shield housing have contact terminations. It extends backward beyond the end and terminates adjacent to the end of the contact support member. this As such, the extended contact shield not only electrically insulates the contacts, but also Individual cores supported by the core supports of the contact support members located within the field housing. Shield the wire over its entire length. As a result, the “crosstalk” performance of the connector Improvement is obtained.   The present invention also provides a shielded housing for securing a multi-core cable to a connector. And a novel strain relief device located adjacent to the end of the device. This strain The relief device is made of a conductive material, preferably formed of a metal material . The strain relief device consists of symmetrical strain relief members, When the members engage, an opening having a substantially circular border adjacent the end of the housing Is defined. The opening with this circular boundary allows the strain relief members to approach each other. The ground braid of the multi-core cable is frictionally fixed, Engaging. The strain relief member shall be connected to the contact shield Opposing switches extending through the outer wall of the jing and in electrical communication with the shield housing. It is desirable to be accommodated in a lot. The strain relief member and the seal One or more raised protrusions to enhance electrical contact with the housing May be. Thus, unlike the prior art strain relief device, the present invention The conductive strain relief member of the cable ground blade and connector shield Provides ground continuity with the housing. Thinner depending on the strength of the metal member The use of a strain relief device becomes possible, As a result, it is possible to reduce the overall size of the connector.   Electrical data with improved connector shield and multipurpose strain relief The preferred embodiment of the connector, as well as other objects, features and advantages of the present invention are described in the following details. It will become apparent when reading the following description with reference to the accompanying drawings.                             BRIEF DESCRIPTION OF THE FIGURES   FIG. 1 is an exploded perspective view of a rear surface of an electrical connector formed according to the present invention. .   FIG. 2 is an exploded perspective view of the front of the electrical connector of FIG.   FIG. 3 is a cross-sectional perspective view of the electrical connector of FIGS. 1 and 2 when assembled. .   FIG. 4 is a perspective view of a contact support member having a contact.   FIG. 5 is a perspective view of a contact support member having contacts electrically connected to a multi-core cable. FIG.   6a and 6b show the terminal sub-assembly of FIG. 3 taken along line 6-6 of FIG. It is sectional drawing of an amplifier. These figures show the rear end of the contact support member and the strain relief. FIG. 4 shows an alternative embodiment of the contact shield with the shield removed.   FIG. 7 is a perspective view of a preferred embodiment of the strain relief member.   FIG. 8 is a perspective view of an alternative embodiment of the strain relief member.                            Detailed description of the embodiment   Referring to FIGS. 1-3, a shielded electrical data connector 10 is shown in the form of an exploded view. Indicated by The connector 10 includes an insulating outer jacket 14 and an inner grounding core. That is, the cable braid 16 and a plurality of individually insulated extending therethrough Used to terminate an electrical cable 12 having a stripped core 18 Can be. In order to prepare the termination of the cable 12 at the connector 10, A part of the bracket 14 is cut off, and a part of the cable plate 16 and a core 18 are formed. Strip the appropriate length for the edge. The present invention relates to a cable having an arbitrary number of cores. It can be seen that the cable can be used, but in the illustrated embodiment, the cable is used. Reference numeral 12 is an eight-conductor cable composed of four pairs of individual conductors.   The connector 10 comprises external connector housing halves 20a and 20b, When assembled, these halves are in the form of a plug as shown in FIGS. May take the form of a jack (not shown). Assembled housing in case of jack The ring is designed to receive and connect to the housing of the plug. Ko The nectar housing halves 20a and 20b are engaged so that the halves snap together. Includes a plurality of locking arms 22 cooperatively engaged with the recess 24. C The housing halves 20a and 20b have a suitable electrical insulation such as polyester. It may be made of any plastic material. Connector housing half 20a and 20b each have a cable termination 26, which is When the cable 12 is connected, the cable 12 defines a circular passage that opens rearward. To allow entry into the table 10.   Connector housing halves 20a and 20b have jack-shaped Terminating sub-assembly 3 identical for both connectors and plug-shaped connectors Support 0. The termination subassembly 30 includes a contact support member 32, a plurality of electrical contacts 3 4. A plurality of dressing blocks 35, contact shields 58, and strain reliefs And a back-up device 72.   Referring now to FIGS. 4 and 5, contact support member 32 includes a plurality of electrical contacts 34. Support on top. Each of the contacts 34 has a connection end 36 and a termination 38 An elongated conductive metal member made of copper. The connection end 36 is connected to one of the pair Electrical contacts with similar contacts in plugs or plug connectors A cantilevered element 40 is provided for providing a positive engagement. Termination 38 is an insulation displacement termination The blade-type insulation displacement core constituted by the core wire 18 of the cable 12 for Contact (IDC) part. In the illustrated embodiment, the contacts 34 are at the top and bottom. And the bottom row, these contacts are longitudinally aligned. And are laterally spaced. The end 38 of the lower row is the end of the upper row Extends in the opposite direction.   The contact support member 32 is made of a suitable insulating plastic such as polyester. , A front wiring 42 and a rear wiring 44. The contact support members 32 are individually The contacts in the upper and lower platforms 46, 47 supporting the insulated contacts 34 A point groove 45 is included. The contact support member 32 extends rearward beyond the IDC end 38 of the contact 34. A cord support 48 extends rearward to the end 44 and supports the cord. Core support 45 is a space 50 for accommodating the core wire and a space 51 for accommodating the dressing block. Has a raised protrusion 49 that defines   The support member 32 includes a vertical slot 52 disposed between the lateral contact pairs 34, A horizontal slot 53 disposed between the upper and lower contact rows. slot 52 and 53 extend longitudinally from the front wiring 42 of the support member 32 through the core wire support portion 48. And terminates at exactly the midpoint 54 of the rear end 44 of the support member 32. Illustrated The support member 32 is designed to accommodate four pairs of contacts, as in By increasing the width of the members, and also by adding additional vertical slots between each pair of contacts in the lateral direction It may be designed to accommodate an additional pair of contacts by providing a socket.   With particular reference to FIG. 5, the core 18 of the cable 12 is Prior to the contact, the contact member 34 of the support member 32 is electrically connected. Cable 12 Are extended to make an insulated displacement connection with the terminal end 38 of the contact 34. Are arranged as follows. The end of the core wire 18 is accommodated in the dressing block 35. It is located within the housing opening and is electrically connected to the contact 34 in a conventional insulating displacement manner. Absolute The rim dressing block 35 fixes the core wire in a predetermined position, and With one or more raised protrusions 55 extending below the bottom of the block, The dressing block accommodating space 51 of the core wire support portion 48 of the support member 32 snaps into the space. I'm trying to fit.   The contacts 34 are held in close proximity to the support member 32, so that each contact pair Shielding from adjacent contact pairs is required to minimize the effects of crosstalk Become. Referring back to FIGS. 1-3, the pre-assembled contact support member 32 is sealed. An internal contact shield 58 is provided. Shield housing 58 supports contacts Slidably inserted around the member 32 (from the front wiring end 42 of the contact support member) A conductive member made of die-casting, for example, a metal member. The contact shield housing 58 serves to shield the contacts 34 as a group. It also serves to shield the contact pairs from each other in the horizontal and vertical directions. Contact Sea The field 58 is an elongated housing having substantially the same length as the contact support member 32, It has an end 60 and a termination 62. The contact shield 58 has upper and lower U-shaped shields. Field platforms 63a and 63b, each of which is provided with a contact shield 58. Includes shield platforms 63a, 63b having a central wall at wire end 60 . These upper and lower shield platforms 63a, 63b To ensure effective vertical and horizontal shielding between the connecting ends 36. One of the pair When connecting to the connector, the wiring ends are rotated by 180 degrees with respect to each other. In this way , The U-shaped shield platform of the mating connector, 6 should be completely sealed, thereby shielding it.   A contact shield 58 is defined by an outer wall 66 at a shield termination 62. And a sealed chamber 65. Outer wall 66 provides overall shielding at terminal end 38 of contact 34. Bring. Referring again to FIGS. 6a and 6b, contact shield 58 further includes a sealed chamber. A vertical direction extending along the front length of 65 and terminating the intermediate termination 62 of the shield 58 And horizontal inner walls 68, 70. The vertical inner wall 68 is provided with a horizontal contact pair 3. 4 and the horizontal wall 70 separates the upper and lower contact rows 34. And shield. Unlike prior art connectors, the outer and inner walls of the contact shield 58 Moves backward beyond the terminal end 38 of the contact 34 to the core wire support 48 of the contact support member 32. Stripping of the core wire 18 extending and thereby disposed within the connector housing This results in effective overall and individual shielding for the pairs. Furthermore, contact seal Can 58 increase its width and create additional horizontal and / or vertical walls May be designed to shield additional contact pairs 34 and cores 18. I can understand.   Termination subassembly 30 is used to secure cable 12 to connector 10. A train relief device 72 is provided. The strain relief device 72 is made of a conductive metal. Consists of a pair of mating strain relief components formed from a material. This strike A preferred embodiment of the ren relief component 74 is shown in FIGS. Strain Alternative embodiments of the relief component will be described in more detail below. Generally, a pair of strains The leaf parts are facing each other, located at the end 62 of the contact shield housing 58. It is inserted into the accommodation slot 75 arranged together. This accommodation slot 75 When the strain relief component is inserted into the accommodation slot 75, It is desirable that the size be such that close electrical contact can be made. Strain Lily When the component is inserted into the receiving slot 75, the sealing chamber 55 of the contact shield 58 A substantially concentric circular opening is defined. Strain relief parts are receiving slots 75 Once inserted and mated, the circular opening defined between the strain relief parts Rubs the external cable braid 16 of the cable 12 between the strain relief parts Fixed and electrically engaged with it, at the circular opening The size should be reduced to secure the cable.   Strain relief device 72 also includes cable 12 and contact shield housing 58. Provides ground continuity between the Before installing the cable 12, Part of the jacket is removed and the cable ground blade 16 is exposed. You. This is the part where the strain relief component frictionally engages. In this way The strain relief component makes electrical contact with the cable grounding blade 16. Strike Wren relief parts are made of conductive metal materials and conductive contact seals The cable 1 is electrically connected to the housing slot 75 of the 2 is grounded from the ground blade 16 through the strain relief component to the contact shield housing. It can be transmitted to the housing 58. Between the strain relief component and the accommodation slot 75 The strain relief component has one or more raised contacts to enhance electrical contact A projection may be provided. Strain relief part is slot for housing contact shield 58 When inserted into the slot 75, the raised contact protrusion “cuts” into the wall of the slot 75. And "mechanically pressed against the wall, thereby Providing reliable electrical contact with the contact shield 58. Meanwhile, this raised contact The protrusion is an interference fit between the shield housing 58 and the strain relief component. Provide good electrical continuity caused by the   FIG. 7 shows a preferred embodiment of the strain relief component 74. Strain relief section Article 74 generally includes an upper wall 76 and a pair of J-shaped extending downwardly from the upper wall. And a side arm 78. "Hook" 80 of J-shaped arm 78 faces inward And the outer wall of the shield housing 58 as shown in FIGS. 66 cooperates with outwardly directed ratchet teeth 82 formed at the end 62 of Combine. Side arm 78 is flexible and positions ratchet teeth 82 At the same time, the strain relief component 74 in the accommodation slot 75 of the shield 58 , Allowing one-way downward movement. Strain relief parts 7 4 has a generally curved inner surface with ribs 84 for abrading the cable blade 16. Help with rubbing. The strain relief part 74 also has a strain relief part. Upper part providing enhanced electrical contact at two locations between article 74 and contact shield 58 And a mechanism for projecting protrusions 86 and 88 at the bottom. The upper protrusion 86 is Placed on the main surface of the train relief component 74 facing each other and Is shifted laterally from the projected lower portion 88.   The strain relief component 74 operates in the following manner. Strain Lily The component 74 includes side arms 88 arranged along both sides of the contact shield 58. The contact shield 58 is inserted into opposing slots 75. Next, J Preparing ratchet engagement between hook 80 and respective teeth 83 of contact shield 58 To this end, the strain relief components 74 are pressed together by hand. Strain The relief part 74 is inserted into the receiving slot 75, and the cable is When making electrical contact with the blade 16, the lower protrusion 88 is forcibly forced into the receiving slot 7. 5 and electrical contact. Frictionally fix cable braid 16 under load When the strain relief component 94 is pushed down, The protrusion 106 is mechanically pressed against the receiving slot 75. Thus, electrical grounding The continuity is maintained in both the pre-load state and the load state. Strain Lily The cable component 74 is formed by the external cable blade 16 of the cable 12 Fixed within a circular opening that continues to shrink in size due to relative movement between parts 74 Until they are pressed together. The strain relief component 74 is pressed and joined And the side arm 78 moves down along the ratchet teeth 82, thereby , Prevent the strain relief components 74 from retracting from each other. In this way, The relief component 74 separately engages the shield housing ratchet teeth 82. Mesh. The locking area is completely separated from the strain relief area and the ground area Therefore, the strain relief of the present invention It provides better stability. Because the locking area is This is because it is less susceptible to strain (distortion) that may occur during pull out.   FIG. 8 shows an alternative embodiment of the strain relief component 90. Strain relief section Article 90 is generally U-shaped and has an upper wall 92 and downwardly extending side walls or legs. 94, 96. The legs 94, 96 are flexible and have ratchet teeth 98. Including. The ratchet teeth 98 attached to the legs 94 are directed outward, while the legs 9 The ratchet teeth attached to 6 are directed inward. Strain relief parts 9 0 indicates that the leg 94 of each part is in the accommodation slot 75 of the contact shield 58b Oriented to engage the legs of the part. Positioning ratchet teeth 98 This allows for relative, movable one-way ratchet engagement between the parts 90. You. The flexibility of the legs 94, 96 allows such ratcheting of the component 90. It will work. The inner surface of the leg 94 and the inner surface of the upper wall 92 are generally curved, A circular opening substantially concentric with the sealing chamber 65 of the door 58b is formed. Ribs 100 are provided on upper wall 90 to assist in frictional fixing of cable braid 16. Is provided on the inner surface of the. These ribs are higher than cable braid 16 Gives localized friction.   The strain relief component 90 further includes a shield 58 and a strain relief as described above. One or more raised to provide enhanced electrical contact with leaf component 90 It includes a protrusion 102 and a locking arm 104 extending downward from the upper wall 92. As shown in FIG. 6b, the locking arm 104 receives the strain relief component 90. When inserted into the housing slot 75, the cooperating lock of the alternate embodiment of the contact shield 58b It fits into the hole 106. At first, the locking hole 106 also faces the shield 58b. Helps to properly orient the strain relief component 90 in the receiving slot 75. stand. The locking arm 104 has a tapered end 108 and one or more locking protrusions. And an outlet 110. As shown in FIG. 6b, the locking projection 110 is 06 cooperate with a rib 112 formed therein.   The strain relief component 90 operates in the following manner. Strain relief parts 90 is a contact system having a locking arm 104 inserted into an adjacent locking hole 106. Field 58b is inserted into the opposite slot 75. Next, the legs 94, 9 In order to prepare the ratchet engagement of each tooth of 6, a strain relief part 9 0 are pressed together by hand. The strain relief component 90 is connected to the cable 12 External cable blades 16 provide relative movement between the strain relief components 90. Thus, they are pressed together until they are fixed in a circular opening whose size is constantly shrinking. It is. When the strain relief component 90 is pushed and united, the locking projection 110 is engaged. After engaging with the locking rib 112 of the stop hole 106, the locking arm 1 04 moves downward in the locking hole 106. The tapered end 108 of the locking arm 104 is locked The inward movement of the arm is possible, but the locking projection 110 and the The hanger prevents outward movement. Thus, the ratchet of the strain relief component 90 In addition to the set teeth 98, the locking arm with the locking projection 110 also has a strain relief. The parts 90 are prevented from retracting from each other.   Once the strain relief device 72 is engaged, the housing halves 20a, 2 Ob fits into the snap to complete the assembly. The housing shown in FIGS. The ring halves 20a and 20b are made in the shape of a plug. Jack shape. Plugs and jacks have a plug wiring end of 180 Mechanically and electrically by rotating it and inserting it into the wiring end of the jack. Is a connector of one of the pair. Secure connection between these connectors, Flexible latch 114 on plug or jack to ensure repeated cuts You may.   Thus, the present invention provides an improved connector shield and dual use strain relief. Provided is an electrical connector having a core crystal. Unlike conventional connectors, the present invention Characterized by a contact shield extending further back in the cable dressing area . Extending the contact shield further back allows for connector crosstalk Performance is dramatically improved. Also, this strain relief part is a cable braid From the ground to the contact shield, and at the same time special Eliminates the need for grounding components, such as spring clips. Furthermore, this strain lily The high strength of the component makes it possible for the strain relief device to be thinner than conventional connectors. It can be used.   Embodiments of the present invention have been described with reference to the accompanying drawings. The present invention is not limited to those that do not differ from the examples, and those skilled in the art You will understand that various other changes and modifications can be made without departing from God U.

────────────────────────────────────────────────── ─── Continuation of front page    (31) Priority claim number 60 / 074,102 (32) Priority date February 9, 1998 (February 29, 1998) (33) Priority country United States (US) (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, I T, LU, MC, NL, PT, SE), OA (BF, BJ , CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, K E, LS, MW, SD, SZ, UG, ZW), EA (AM , AZ, BY, KG, KZ, MD, RU, TJ, TM) , AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, D K, EE, ES, FI, GB, GE, GH, GM, HU , ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, M D, MG, MK, MN, MW, MX, NO, NZ, PL , PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, V N, YU, ZW (72) Inventor Hammond, Bernardo, H             United States of America. 38018 Tennessee, Col             Dova, Woolrich Drive 8441 (72) Inventor Biebrich, Mark             United States of America. 55424 Minnesota, Ede             Asina, Ashcroft Lane 6312

Claims (1)

[Claims]   1. In an electrical connector for terminating individual core wires of a multi-core cable,   An electrically insulating contact support member having a front connection end and a rear cable termination;   A plurality of electrical contacts having a core connection end for making an electrical connection with the core; And the connection end is supported by the contact support member, and the connection end of the contact support member is A plurality of electrical contacts arranged slightly forward of the cable end;   A conductive contact shield housing substantially surrounding the contact support member. Between the outer wall extending over the entire length of the contacts and at least two contacts. At least one inner wall for shielding, and the individual cores of the multi-core cable. Behind the contact connection end to ensure shielding between the at least two core wires A contact system extending to the contact support member and terminating adjacent the cable end. And an electrical connector.   2. Electricity that internally supports the contact shield housing and the contact support member 2. The method according to claim 1, further comprising an insulating connector housing. Onboard electrical connector.   3. The contact support member defines the at least one inner wall of the contact shield. A contractor comprising at least one longitudinal slot for receiving. 2. The electrical connector according to claim 1, wherein   4. The contact end includes an insulating displacement contact, and the connector has a plurality of A dressing block, wherein the dressing block is an insulation displacement contact. A snap fit into the connector to help secure the core to the connector. The electrical connector according to claim 1, wherein the electrical connector is a feature.   5. The insulative connector housing mates with the snap and is in front of the contact. Including two connector halves for substantially sealing the contact shield. The electrical connector according to claim 2, wherein   6. Placed adjacent to the end of the housing to secure the cable Claims further comprising a cable strain relief device provided. An electrical connector according to claim 1.   7. The cable strain relief device includes first and second strain reliefs. And each strain relief member is disposed along opposite ends thereof. A pair of legs, each of which has at least one engaging member attached thereto. A joining member, wherein the first and second strain relief members have a boundary between them. Defining an aperture, but moving relative to the size of the bounded aperture. The cable can be firmly engaged at its opening and The contact shield housing is arranged along at least two opposing side walls thereof. An engaging element, which engages with an engaging member of the strain relief member. And thereby connect the first and second strain relief members with the cable. 7. The electrical connector according to claim 6, wherein the electrical connector is engaged in a locking manner. .   8. The engagement portion attached to the first and second strain relief members Material and the engagement element attached to the contact shield are provided with a lattice therebetween. Contractor, characterized by including interengaging teeth to allow for jet-type movement. An electrical connector according to claim 7.   9. The contact shield housing receives each of the strain relief members. A slot disposed through opposite sides of the outer wall. The electrical connector according to claim 7, characterized in that:   10. The first and second strain relief members are made of a conductive material. And at least one of the first and second strain relief members is In order to secure the ground continuity between the cable and the contact shield, 8. The electric power supply according to claim 7, wherein the electric power supply is in electrical contact with the electric field. Damn connector.   11. The first and second strain relief members are made of a conductive material. And at least one of the first and second strain relief members At least one raised protrusion, said protrusion being provided on said strain relief portion. When the material is inserted into the slot, the contact shield is placed on the inner wall of the slot. The strain relief member and the contact seal are mechanically pressed against each other. Claim 9 characterized by the fact that electrical contact with the field is ensured. Electrical connector as described.   12. The cable strain relief device includes a first and a second interengageable. Compliant strain relief members, each of which comprises a pair of spaced apart legs. One of the legs has an outwardly directed engagement element and the opposite leg is an internal A cable strain relief member having a side-facing engagement element The outwardly facing engagement element mounted on the leg of the other cable Engaging the inwardly engaging elements attached to the legs of the A second strain relief member adjacent the end of the housing; Defining the opening, but relatively moving, reducing the size of said opening, Claim: The cable can be frictionally fixed in the opening. The electrical connector according to claim 6, wherein   13. The engagement attached to the first and second strain relief members The elements are interengageable teeth to allow ratcheting movement between the elements. 13. The electrical connector according to claim 12, comprising:   14． The contact shield housing is provided for each of the strain relief members. A slot disposed through opposite sides of the outer wall for receiving 13. The electrical connector according to claim 12, wherein:   15. The first and second strain relief members are made of a conductive material. And at least one of the first and second strain relief members is The contact seal is used to secure ground conductivity between the cable and the contact shield. 13. The electric device according to claim 12, wherein the electric device is in electrical contact with the connector.   16. The first and second strain relief members are made of a conductive material. And at least one of the first and second strain relief members At least one raised protrusion, said protrusion being provided on said strain relief portion. When the material is inserted into the slot, the contact shield is placed on the inner wall of the slot. Mechanically pressed, whereby the strain relief member and the contact seal Claim 14 characterized by ensuring electrical contact with the ground. Electrical connector as described.   17． In an electrical connector for terminating individual core wires of a multi-core cable,   A connector housing having a core end and a connection end, wherein the connector housing The termination defines a first bounded opening for the cable to pass through A connector housing adapted to;   A cable sleeve disposed adjacent the bounded opening of the housing. A train relief device, comprising: a first and a second strain relief member; The strain relief member has a pair of legs disposed along opposite ends thereof, Each of the legs includes at least one engagement member attached thereto, wherein the first The first and second strain relief members define a second bounded opening between the members. Define but move relatively to reduce the size of said second bounded aperture Cable opening so that it can engage Bull strain relief device; An electrical connector comprising:   18. The engagement attached to the first and second strain relief members The member and the engagement element attached to the housing are provided with a lattice between them. Comprising inter-engageable teeth to allow jet-type movement, An electrical connector according to claim 17.   19. The connector housing houses each of the strain relief members 18. The method according to claim 17, further comprising: Electrical connector.   20. The connector housing and the first and second strain relief portions And the first and second strain relief portions are made of a conductive material. At least one of the materials provides ground continuity between the cable and the contact shield. In order to secure the connector housing, it is in electrical contact with the connector housing. The electrical connector according to claim 17, wherein   21. The connector housing and the first and second strain relief portions And the first and second strain relief portions are made of a conductive material. At least one of the materials includes at least one raised protrusion, the protrusion The part is configured to connect the connector when the strain relief member is inserted into the slot. Mechanically pressed against the inner wall of the slot of the housing, whereby the Ensuring electrical contact between the strain relief member and the housing 20. The electrical connector according to claim 19, wherein:   22. For electrical connectors for terminating individual cores of multi-core cables including grounding And   A conductive shield housing having a connection end and a cable end;   An insulating contact support member supported within the shield housing;   A plurality of contacts provided on the contact support member, each contact being connected to a core end; A plurality of contact points including a contact end;   Positioned adjacent to the end of the shield housing to secure the cable A cable strain relief device, comprising: a conductive material; Electrical communication with the cable housing and cable ground, and the electrical connection between them. Cable and strain relief devices to ensure continuity; An electrical connector comprising:   23. In an electrical connector for terminating individual core wires of a multi-core cable,   An electrically insulating contact support member having a connection end and a cable end;   Each having a connection end for electrically connecting with the core wire and a core end portion. Electrical contact, supported by the contact support member, the contact support member, the contact A core support extending from the terminating end to the cable end of the contact support member; A plurality of electrical contacts;   A conductive shield housing substantially surrounding the entire contact support member; An electrical connector comprising: