This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No. 201210335987.3 filed in China, P.R.C. on Sep. 12, 2012, the entire contents of which are hereby incorporated by reference.
1. Technical Field
The disclosure relates to a receptacle connector, and particularly relates to a receptacle connector in which the contact impedance or electrical resistance between a metal shell of a plug connector and a metal shell of the receptacle connector is reduced when the plug connector is inserted into the receptacle connector and the metal shell of the plug connector is in contact with the metal shell of the receptacle connector.
2. Related Art
Using an electric apparatus, such as a notebook, is a very common daily experience. Along with the tendency of thinning and lightening, the occupied volume of the receptacle connector on the electric apparatus should also be reduced; however, upon reducing the volume of the receptacle connector, the signal interference issue caused by the electromagnetic interference of the receptacle connector should also be considered.
Additionally, in order to increase the transmitting speed significantly, the number of the conducting terminals of the receptacle connector has to be increased and the conducting terminals have to be arranged densely, so that the signal interferences, such as electrostatic interference, electromagnetic interference, impedance matching, noise interference, crosstalk between adjacent conducting terminals and so forth, are raised quite easily upon transmitting high frequency signals when the distance between two adjacent conducting terminals is too closer or when the terminals are bent or twisted.
A conventional receptacle connector has fool-proofing elastic pieces. When a plug connector is inserted to the conventional receptacle connector, the elastic pieces are contacted with the metal shell of the conventional receptacle connector for grounding. However, the contact area between the metal shell of the plug connector and the metal shell of the receptacle connector is not large enough to reduce the contact impedance or electrical resistance between the metal shell of the plug connector and the metal shell of the conventional receptacle connector when the plug connector is inserted into the receptacle connector and the metal shell of the plug connector is in contact with the metal shell of the receptacle connector and to reduce the electromagnetic interference of the conventional receptacle connector.
Therefore, improving the design of the metal shell of the conventional receptacle connector to reduce the contact impedance or electrical resistance between the metal shell of the plug connector and the metal shell of the conventional receptacle connector when the plug connector is inserted into the receptacle connector and the metal shell of the plug connector is in contact with the metal shell of the receptacle connector and to reduce the electromagnetic interference of the conventional receptacle connector, is an important issue.
In view of this, the disclosure proposes a receptacle connector so as to reduce the contact impedance or electrical resistance between a metal shell of a plug connector and a metal shell of the receptacle connector when the plug connector is inserted into the receptacle connector and the metal shell of the plug connector is in contact with the metal shell of the receptacle connector and to reduce the electromagnetic interference.
One invention concept of the disclosure proposes a receptacle connector, which is provided for being inserted by a plug connector and contacted with a metal shell of the plug connector and includes a metal shell, a plurality of elastic pieces and a plurality of auxiliary fastening members. The metal shell includes a plurality of first surfaces and a plurality of second surfaces. The second surfaces are connected to two ends of the first surfaces so as to form an inserting window. The elastic pieces are disposed on the first surfaces. The auxiliary fastening members are disposed on the first surfaces. A first interval is defined between one of the auxiliary fastening members and the near second surface. A second interval is defined between one of the auxiliary fastening members and the near elastic piece. Each auxiliary fastening member includes a contacting portion formed extendedly at an inner space of the metal shell of the receptacle connector. When the contacting portions connected with the metal shell of the plug connector, the contact area between the metal shell of the plug connector and the auxiliary fastening members can be increased by the contacting portions so as to reduce the contact impedance or electrical resistance between the metal shell of the plug connector and the metal shell of the receptacle connector.
According to the disclosure, the auxiliary fastening members are disposed on the four corners of the first surfaces and near the inserting window of the metal shell, and the contacting portions of auxiliary fastening members are applied to contact with the surface of the metal shell of the plug connector so as to increase the contact area, reduce the contact impedance or electrical resistance and further decrease the electromagnetic interference of the receptacle connector. In addition, the auxiliary fastening members are provided for guiding the inserting orientation of the plug connector so as to prevent the elastic pieces of the receptacle connector from being damaged when the plug connector is abnormally inserted into the receptacle connector, so that the sustainability and the stability of the receptacle connector upon inserting into/pulling out the plug connector are guaranteed.
The detailed features and advantages of the disclosure are described below in great detail through the following embodiments; the content of the detailed description is sufficient for those skilled in the art to understand the technical content of the disclosure and to implement the disclosure there accordingly. Based upon the content of the specification, the claims, and the drawings, those skilled in the art can easily understand the relevant objectives and advantages of the disclosure.
The disclosure will become more fully understood from the detailed description given herein below for illustration only, and thus not limitative of the disclosure, wherein:
Referring to
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In the embodiment mentioned above, the auxiliary fastening members 3 are disposed on the first surface 11, but embodiments of the disclosure are not limited thereto. In some implementation aspects, the auxiliary fastening members 3 are disposed on the second surfaces 12, as shown in
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In the embodiment mentioned above, the contacting portions 31 are formed by extruding the inner faces of the first surfaces 11 toward the inner space of the metal shell 1, but embodiments of the disclosure are not limited thereto. In some implementation aspects, each contacting portion 31 includes a bending segment 33 and an extending segment 34, as shown in
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In the embodiment mentioned above, the elongating openings 35 are formed between the auxiliary fastening members 3 and the first surface 11 by a tearing process, but embodiments of the disclosure are not limited thereto. In some implementation aspects, each auxiliary fastening member 3 has a breach 36 formed on the first surface 11 and disposed between the contacting portion 31 and the first surface 11, as shown in
Referring to
In the embodiment mentioned above, the contacting portions 31 substantially have connecting lines 311 and the contacting portions 31 are in contact with the surface of the metal shell 92 by the connecting lines 311 respectively, but embodiments of the disclosure are not limited thereto. In some implementation aspects, the contacting portions 31 have connecting points 312, as shown in
Table 1 is a testing data sheet for comparing the contact impedance or electrical resistance between the metal shell of the plug connector 91 and the metal shell of the receptacle connector 100 with the auxiliary fastening members 3 and the contact impedance or electrical resistance between the metal shell of the plug connector 91 and the metal shell of the receptacle connector 100 without the auxiliary fastening members 3. As shown in Table 1, the contact impedance or electrical resistance between the metal shell of the plug connector 91 and the metal shell of the receptacle connector 100 without the auxiliary fastening members 3 is larger than the contact impedance or electrical resistance between the metal shell of the plug connector 91 and the metal shell of the receptacle connector 100 with four auxiliary fastening members 3. Consequently, the four auxiliary fastening members 3 are capable of reducing the contact impedance or electrical resistance between the metal shell of the plug connector 91 and the metal shell of the receptacle connector 100.
Referring to
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In the disclosure, the auxiliary fastening members 3 are disposed on the four corners of the first surfaces and near the inserting window 13 of the metal shell 1, and the contacting portions 31 of auxiliary fastening members 3 are applied to connect with the surface of the metal shell 92 of the plug connector 91 so as to increase the contact area, reduce the contact impedance or electrical resistance and further decrease the electromagnetic interference of the receptacle connector 100. In addition, the auxiliary fastening members 3 are provided for guiding the inserting orientation of the plug connector 91 so as to prevent the elastic pieces 21 of the receptacle connector 100 from being damaged when the plug connector 91 is abnormally inserted into the receptacle connector 100, so that the sustainability and the stability of the receptacle connector 100 upon inserting into/pulling out the plug connector 91 are guaranteed.
While the present invention has been described by the way of example and in terms of the preferred embodiments, it is to be understood that the invention need not be limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims, the scope of which should be accorded the broadest interpretation so as to encompass all such modifications and similar structures.
Number | Date | Country | Kind |
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2012 1 0335987 | Sep 2012 | CN | national |
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7614920 | Yi | Nov 2009 | B1 |
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9028269 | Hsu et al. | May 2015 | B2 |
Number | Date | Country | |
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20140073169 A1 | Mar 2014 | US |