This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No. 201510101890.X filed in China, P.R.C. on Mar. 9, 2015, the entire contents of which are hereby incorporated by reference.
The instant disclosure relates to an electrical receptacle connector, and more particular to a standing-type electrical receptacle connector.
Generally, Universal Serial Bus (USB) is a serial bus standard to the PC architecture with a focus on computer interface, consumer and productivity applications. The existing Universal Serial Bus (USB) interconnects have the attributes of plug-and-play and ease of use by end users. Now, as technology innovation marches forward, micro USB interconnects are developed which include advantageous like small occupation volume and ease of portability. Therefore, the micro USB interconnects are widely adopted to smart mobile devices, digital cameras, or other portable electronic devices to mate with connecting cables for data transmission or power supply.
A conventional standing-type electrical receptacle connector having USB Type-C connection interface includes an insulated housing, a plurality of first terminals, a plurality of second terminals, and a hollowed shell. The insulated housing includes a base portion and a tongue portion extending from one side of the base portion. Each of the first terminals is held in the base portion and the tongue portion. The front of each of the first terminals is disposed at an upper surface of the tongue portion, and the rear of each of the first terminals is protruded from the base portion and soldered with a circuit board. Each of the second terminals is held in the base portion and the tongue portion. The front portion of each of the second terminals is disposed at a lower surface of the tongue portion, and the rear of each of the second terminals is protruded from the base portion and soldered with the circuit board. The hollowed shell encloses the base portion and the tongue portion.
However, the standing-type electrical receptacle connector is positioned with the circuit board only by the rear of the terminals soldered with the circuit board. Therefore, when the standing-type electrical receptacle connector suffers an impact force, the connector would be detached off the circuit board easily.
Consequently, how to improve the existing connector becomes an issue.
In view of this, an embodiment of the instant disclosure provides a standing-type electrical receptacle connector which can be stably positioned with a circuit board. Accordingly, the aforementioned problems can be improved.
An embodiment of the instant disclosure provides a standing-type electrical receptacle connector comprising a metallic shell, an insulated housing, a plurality of upper-row receptacle terminals, a plurality of lower-row receptacle terminals, and an outer shell. The metallic shell defines a receiving cavity therein. The insulated housing is received in the receiving cavity and comprises a base portion and a tongue portion extending from one side of the base portion. The tongue portion has an upper surface and a lower surface opposite to the upper surface. The upper-row receptacle terminals comprise a plurality of upper signal pairs, at least one power terminal, and at least one ground terminal. Each of the upper-row receptacle terminals is held in the insulated housing and disposed at the upper surface. The lower-row receptacle terminals comprise a plurality of lower signal pairs, at least one power terminal, and at least one ground terminal. Each of the lower-row receptacle terminals is held in the insulated housing and disposed at the lower surface. The outer shell comprises a sleeve, at least two extending sheets, and at least two positioning portions. The sleeve encloses the metallic shell. The two extending sheets are respectively extending from two sides of the sleeve. The positioning portions are at the extending sheets.
In some embodiments, the insulated housing comprises an upper base and a lower base. The upper base and the lower base are extending out of the metallic shell. The outer shell comprises a covering plate at the rear of the sleeve to cover the upper base and the lower base.
In some embodiments, each of the positioning portions comprises at least one leg extending outward from the side portion of the covering plate.
In some embodiments, each of the positioning portions comprises a lock hole formed on the covering plate.
In some embodiments, each of the positioning portions comprises at least one leg extending outward from the side portion of the covering plate and a lock hole formed on the covering plate.
In some embodiments, the standing-type electrical receptacle connector further comprises a circuit board assembled on the base portion. Each of the extending sheets is abutted against the circuit board. The circuit board comprises at least two positioning holes respectively positioned with the positioning portions.
In some embodiments, the insulated housing comprises at least one extending portion extending outward from one side of the base portion, and the extending portion defines a through hole corresponding to one of the positioning holes.
In some embodiments, the upper-row receptacle terminals and the lower-row receptacle terminals have 180 degree symmetrical design with respect to a central point of the receiving cavity as the symmetrical center.
In some embodiments, the position of the upper-row receptacle terminals corresponds to the position of the lower-row receptacle terminals.
In some embodiments, each of the upper-row receptacle terminals comprises a flat contact portion, a body portion, and a tail portion. The body portion is held in the base portion and disposed at the upper surface of the tongue portion. The flat contact portion is extending forward from the body portion in the rear-to-front direction and partly exposed upon the upper surface of the tongue portion. The tail portion is extending backward from the body portion in the front-to-rear direction and protruded from the base portion.
In some embodiments, each of the lower-row receptacle terminals comprises a flat contact portion, a body portion, and a tail portion. The body portion is held in the base portion and disposed at the lower surface of the tongue portion. The flat contact portion is extending forward from the body portion in the rear-to-front direction and partly exposed upon the upper surface of the tongue portion. The tail portion is extending backward from the body portion in the front-to-rear direction and protruded from the base portion.
In some embodiments, the standing-type electrical receptacle connector further comprises a grounding plate disposed at the insulated housing and between the upper-row receptacle terminals and the lower-row receptacle terminals.
Based on the above, the outer shell is fitted over the metallic shell and comprises two extending sheets extending therefrom for improving the positioning stability between the standing-type electrical receptacle connector and the circuit board, by the way that the two extending sheets allow the standing-type electrical receptacle connector to be firmly positioned with the circuit board after the standing-type electrical receptacle connector is soldered with the circuit board. In addition, the extending sheet comprises a positioning portion corresponding to the positioning hole of the circuit board. The positioning portion may be a leg inserted into the positioning hole or may be a lock hole allowing a bolt or a threadable component to pass through and to further lock with the positioning hole of the circuit board. Hence, the standing-type electrical receptacle connector can be stably positioned with the circuit board, and the overall structural strength between the connector and the circuit board can be improved. In addition, because the metallic shell and the outer shell are separate pieces, the manufacturing of the connector can be simplified and the overall strength of the connector can be improved.
Furthermore, the upper-row receptacle terminals and the lower-row receptacle terminals are arranged upside down, and the pin-assignment of the flat contact portions of the upper-row receptacle terminals is left-right reversal with respect to that of the flat contact portions of the lower-row receptacle terminals. Accordingly, the standing-type electrical receptacle connector can have a 180 degree symmetrical, dual or double orientation design and pin assignments which enables the standing-type electrical receptacle connector to be mated with a corresponding plug connector in either of two intuitive orientations, i.e. in either upside-up or upside-down directions. Therefore, when an electrical plug connector is inserted into the standing-type electrical receptacle connector with a first orientation, the flat contact portions of the upper-row receptacle terminals are in contact with upper-row plug terminals of the electrical plug connector. Conversely, when the electrical plug connector is inserted into the standing-type electrical receptacle connector with a second orientation, the flat contact portions of the lower-row receptacle terminals are in contact with the upper-row plug terminals of the electrical plug connector. Note that, the inserting orientation of the electrical plug connector is not limited by the instant disclosure.
Detailed description of the characteristics and the advantages of the instant disclosure are shown in the following embodiments. The technical content and the implementation of the instant disclosure should be readily apparent to any person skilled in the art from the detailed description, and the purposes and the advantages of the instant disclosure should be readily understood by any person skilled in the art with reference to content, claims and drawings in the instant disclosure.
The instant disclosure will become more fully understood from the detailed description given herein below for illustration only, and thus not limitative of the instant disclosure, wherein:
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In this embodiment, the standing-type electrical receptacle connector 100 can provide a reversible or dual orientation USB Type-C connector interface and pin assignments, i.e., a USB Type-C receptacle connector. The standing-type electrical receptacle connector 100 can be utilized in mobile devices, laptop computers, digital cameras, or other electronic devices. In this embodiment, the standing-type electrical receptacle connector 100 comprises an outer shell 11, a metallic shell 21, an insulated housing 31, a plurality of upper-row receptacle terminals 4, and a plurality of lower-row receptacle terminals 5.
In addition, the standing-type electrical receptacle connector 100 further comprises a grounding plate 6 disposed in the insulated housing 31 and located between the upper-row receptacle terminals 4 and the lower-row receptacle terminals 5. Pins of the grounding plate 6 are protruded out of the insulated housing 31 and in contact with a circuit board 7, so that electromagnetic interference (EMI) problems can be improved. In addition, the standing-type electrical receptacle connector 100 may have receptacle terminals aligned in one row. In other words, the standing-type electrical receptacle connector 100 may only have the upper-row receptacle terminals 4 or the lower-row receptacle terminals 5. In this embodiment, the standing-type electrical receptacle connector 100 comprises both the upper-row receptacle terminals 4 and the lower-row receptacle terminals 5, but embodiments are not limited thereto. The standing-type electrical receptacle connector 100 may have receptacle terminals aligned in one row according to practical requirements or cost consideration.
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In the case that the positioning portion 13 comprises a leg 131, the leg 131 can be inserted into the positioning hole 71 of the circuit board 7, so that the outer shell 11 can be positioned with the circuit board 7, and the leg 131 can be provided for noise conduction and grounding. In the case that the positioning portion 13 comprises a lock hole 132, a bolt or a threadable component may be applied to pass through the lock hole 132 to lock with the positioning hole 71 of the circuit board 7, so that the outer shell 11 can be positioned with the circuit board 7 firmly. In this embodiment, the insulated housing 31 further comprises two extending portions 35 extending outward from two sides of the base portion 32. Each of the extending portions 35 defines a through hole 351, and the through holes 351 correspond to the positioning holes 71. That is, each of the extending portions 35 is between the corresponding extending sheet 12 and the circuit board 7. The bolt or the threadable component passes through the lock hole 132 and the through hole 351 to lock with the positioning hole 71 of the circuit board 7. Therefore, the extending portions 35 allow the standing-type electrical receptacle connector 100 to be stably positioned with the circuit board 7 and improve the structural strength between the standing-type electrical receptacle connector 100 and the circuit board 7. In addition, in some embodiments, the insulated housing 31 may comprise a single extending portion 35 extending outward from one side of the base portion 32. In other words, the extending portion 35 is extending from any one of two sides of the base portion 32, and the single extending portion 35 can also improve the positioning between the connector and the circuit board 7.
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In the forgoing embodiments, the receptacle terminals 4, 5 are provided for transmitting USB 3.0 signals, but embodiments are not limited thereto. In some embodiments, for the upper-row receptacle terminals 4 in accordance with transmission of USB 2.0 signals, the first upper signal pairs (TX1+−) 41 and the third upper signal pairs (RX2+−) 41 are omitted, and the second upper signal pairs (D+−) 41 and the power terminals (Power/VBUS) 42 are retained. While for the lower-row receptacle terminals 5 in accordance with transmission of USB 2.0 signals, the first lower signal pairs (TX2+−) 51 and the third lower signal pairs (RX1+−) 51 are omitted, and the second lower signal pairs (D+−) 51 and the power terminals (Power/VBUS) 52 are retained.
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Based on the above, the outer shell is fitted over the metallic shell and comprises two extending sheets extending therefrom for improving the positioning stability between the standing-type electrical receptacle connector and the circuit board, by the way that the two extending sheets allow the standing-type electrical receptacle connector to be firmly positioned with the circuit board after the standing-type electrical receptacle connector is soldered with the circuit board. In addition, the extending sheet comprises a positioning portion corresponding to the positioning hole of the circuit board. The positioning portion may be a leg inserted into the positioning hole or may be a lock hole allowing a bolt or a threadable component to pass through and to further lock with the positioning hole of the circuit board. Hence, the standing-type electrical receptacle connector can be stably positioned with the circuit board, and the overall structural strength between the connector and the circuit board can be improved. In addition, because the metallic shell and the outer shell are separate pieces, the manufacturing of the connector can be simplified and the overall strength of the connector can be improved.
Furthermore, the upper-row receptacle terminals and the lower-row receptacle terminals are arranged upside down, and the pin-assignment of the flat contact portions of the upper-row receptacle terminals is left-right reversal with respect to that of the flat contact portions of the lower-row receptacle terminals. Accordingly, the standing-type electrical receptacle connector can have a 180 degree symmetrical, dual or double orientation design and pin assignments which enables the standing-type electrical receptacle connector to be mated with a corresponding plug connector in either of two intuitive orientations, i.e. in either upside-up or upside-down directions. Therefore, when an electrical plug connector is inserted into the standing-type electrical receptacle connector with a first orientation, the flat contact portions of the upper-row receptacle terminals are in contact with upper-row plug terminals of the electrical plug connector. Conversely, when the electrical plug connector is inserted into the standing-type electrical receptacle connector with a second orientation, the flat contact portions of the lower-row receptacle terminals are in contact with the upper-row plug terminals of the electrical plug connector. Note that, the inserting orientation of the electrical plug connector is not limited by the instant disclosure.
While the instant disclosure 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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201510101890.X | Mar 2015 | CN | national |