1. Field of the Invention
The present invention relates to an electrical connector, more particularly to an electrical connector with grounding element to reduce electromagnetic interference (EMI).
2. Description of Related Art
China patent issue No. CN202797485U, issued on Mar. 13, 2013, discloses a conventional electrical connector including an insulative housing, a plurality of contacts retained in the insulative housing, and a shell attached to the insulative housing. The shell surrounds the insulative housing to form a mating cavity. The shell has a contact portion extending into the mating cavity forwardly from a top wall thereof The contact portion contacts with a grounding contact. However such arrangement can not well improve the anti-EMI effect of the electrical connector or reduce cross talking between the signal terminals.
Hence, an improved electrical connector with improved structure is needed to solve the problem above.
According to one aspect of the present invention, an electrical connector includes an insulative housing, a metal shell covering the insulative housing, a plurality of electrical terminals and a auxiliary terminal received in the insulative housing. The electrical terminals includes a number of first contacts. The first contacts include a grounding contact in the middle and some signal contacts on both sides of the grounding contact. The auxiliary terminals includes the retaining portion received in insulative housing and the connecting portion downwardly bent from an end of the retaining portion. The retaining portion has a first spring tab and the connecting has a second spring tab. The first spring tab contacts with the metal shell and the second spring tab contacts with the grounding contact.
The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention.
For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be obvious to those skilled in the art that the present invention may be practiced without such specific details. In other instances, well-known circuits have been shown in block diagram form in order not to obscure the present invention in unnecessary detail. For the most part, details concerning timing considerations and the like have been omitted inasmuch as such details are not necessary to obtain a complete understanding of the present invention and are within the skills of persons of ordinary skill in the relevant art.
Please referring to
Please reference to
The spacer 13 comprises a body portion 131 and a supporting portion 132 extending forwardly from a bottom of the body portion 131. The body portion 131 includes a front end face 1311, two side end faces 1312, a top end face 1313 and a bottom end face 1314 opposite to the top end face 1313. The body portion 131 further has a plurality of first contact receiving slots 13131 passing therethrough along an upper to bottom direction. The middle one of the first contact receiving slots 13131 is wider than the other first contact receiving slots 13131. The body portion 131 has a plurality of retaining blocks 13111 extending downwardly from the top end face 1313 of the body portion 131 to the upper supporting portion 132. The supporting portion 132 defines a pair of through holes 1321 used for receiving the raises 1121 of the base portion 11 so that the support portion 132 can be firmly assembled to the base portion 11. The supporting portion 132 also has a plurality of second contact receiving slots 1322 behind the through holes 1321 and in front of the retaining blocks 13111.
Please referring to
Please referring to
The contacts 3 have five first contacts 31 including two pairs of differential signal contacts 34 and a grounding contact 33 between the two pairs. The first connecting portion 313 of the grounding contact 33 is wider than the first connecting portion 313 of the differential signal contacts 34. The first connecting portion 313 of one of the differential signal contacts 34 closed to the grounding contact 33 is offset along a direction far away from the grounding contact 33 relative to the corresponding first soldering portion 314 to increase a distance between the differential signal contacts 34 with the grounding contact 33 to reduce the signal cross talking between the contacts 3.
Please reference to
The spacer 14 has a body portion 141 and a supporting portion 142 extending forwardly from a bottom of the body portion 141. The body portion 141 includes a front end face 1411, two side end faces 1412, a top end face 1413, and a rear end face 1415 opposite to the front end face 1411. The spacer 14 further has a plurality of first contact retaining slots 14131 passing therethrough along an upper to bottom direction. The auxiliary contact 5 and a grounding contact 33′ are both received in the middle one of the first contact receiving slots 14131. The spacer 14 is substantially same as the spacer 13 in the electrical connector 100, except that the rear end face 1415, different from the rear end face 1415, defines an opening 1418. The opening 1418 is throughout the body portion 141 and communicates with the middle one of the first contact receiving slots 14131. The auxiliary contact 5 is located between the grounding contact 33′ and a rear wall 24′ of shell 2.
The auxiliary contact 5 includes a flat portion 51 received in the middle one of the first contact receiving slots 14131, a first spring tab 511 extending upwardly and rearward from an upper part of the flat portion 51 and a second spring tab 512 extending upwardly and forwardly from a lower part of the flat portion 51. The first spring tab 511 and the second spring tab 512 are torn from the flat portion 51 and located respectively at a front and a rear of the flat portion 51. The auxiliary contact 5 is assembled to the spacer 14 along an upper to bottom direction, and the first spring tab 511 passes through the opening 1418 backwardly and elastically contacts against the rear wall 24′ of the shell 2′. The second spring tab 512 elastically contacts against the first connecting 313′ of the grounding contact 33′.
Referring to
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. For example, the tongue portion is extended in its length or is arranged on a reverse side thereof opposite to the supporting side with other contacts but still holding the contacts with an arrangement indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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201310438501.3 | Sep 2013 | CN | national |
201310439107.1 | Sep 2013 | CN | national |