Detailed Description
Referring to fig. 1,2 and 3, a first embodiment of a socket electrical connector 100 according to the present invention is shown in fig. 1 as an external view, fig. 2 as an exploded view, and fig. 3 as a back external view. The socket electrical connector 100 of the present invention may be in the connection interface specification of HDMI, display Port or USB Type-C, and the present embodiment is described in the HDMI specification, wherein the socket electrical connector 100 includes a shielding shell 11, an insulating body 21, an upper row of terminals 31, a lower row of terminals 41 and an outer frame 5. In addition, in some embodiments, the electrical socket connector 100 further includes a grounding piece disposed on the insulating body 21, and pins of the grounding piece are exposed from the insulating body 21 to contact the shielding shell 11 or the circuit board. When the upper and lower terminals 31, 41 transmit signals, the problem of crosstalk signal interference can be improved by the isolation of the grounding plate, and the structural strength of the tongue plate 212 can be improved by using the grounding plate located on the tongue plate 212.
The shielding shell 11 comprises a frame 111 of a hollow shell, a containing groove 112 formed in the frame 111, and a plug-in port 113 communicated with the containing groove 112 and formed on the front side of the frame 111, wherein the plug-in port 113 on the front side of the frame 111 is used for providing plug electric connector plug-in connection. In this embodiment, the shielding shell 11 may be formed by bending a one-piece structure.
The insulating body 21 is disposed in the accommodating groove 112, and the insulating body 21 is mainly composed of a base 211 and a tongue plate 212, wherein the base 211 and the tongue plate 212 are formed by insert-molding. The tongue 212 extends from the base 211, and the tongue 212 has an upper surface, a lower surface, and a front surface. In the present invention, the insulating body 21 may be formed by a one-piece structure or a two-piece structure, and when the two-piece structure is taken as an example, the insulating body 21 has a first base and a second base combined in an assembled manner, and the first base and the second base combined form the base 211 and the tongue plate 212. The first housing is coupled to the upper row of terminals 31 during insert molding (insert-molding), and the second housing is coupled to the lower row of terminals 41 during insert molding (insert-molding), and then the first housing is coupled to the second housing for fixing.
Referring to fig. 2 and 2A, the upper row of terminals 31 respectively include an upper row of flat signal terminals 311, at least one upper row of flat power terminals 312, and at least one upper row of flat ground terminals 313. The terminal arrangement from right to left is sequentially, from the front of the upper terminal 31, a first pair of upper signal terminals (tmdsdata2+ -, differential signal terminals), an upper signal terminal (tmdsdata1 Shield), a second pair of upper signal terminals (tmdsdata0+ -, differential signal terminals), an upper signal terminal (TMDS Clock Shield), a reserved terminal (Consumer Electronics Control, abbreviated CEC), a communication terminal (Serial Clock), an upper plate Ground terminal 313 (DDC/CEC group), and a detection terminal (Hot Plug Detect). Here, ten upper row terminals 31 are formed.
Referring to fig. 2, 2A, 3 and 4, the upper-row terminals 31 are located on the base 211 and the tongue plate 212, each upper-row terminal 31 includes an upper-row contact section 315, an upper-row connection section 317 and an upper-row welding section 316, the upper-row connection section 317 is disposed on the base 211 and the tongue plate 212, the upper-row contact section 315 extends from one side of the upper-row connection section 317 and is located on the upper surface, and the upper-row welding section 316 extends from the other side of the upper-row connection section 317 and is penetrated from the base 211.
Referring to fig. 2 and 2A, the terminal arrangement from right to left is sequentially, from the front of the lower row terminal 41, a lower row signal terminal (TMDS Data2 Shield), a first pair of lower row signal terminals (TMDS Data1+ -differential signal terminals), a lower row signal terminal (TMDS Data0 Shield), a second pair of lower row signal terminals (TMDS clock+ -differential signal terminals), a function terminal (availability), a communication terminal (SERIALDATA, SDA for short), and a lower row panel Power terminal 412 (+5v Power). Here, nine lower row terminals 41 are formed.
Referring to fig. 2, 2A, 3 and 4, the lower-row terminals 41 are located on the base 211 and the tongue 212, each lower-row terminal 41 includes a lower-row contact section 415, a lower-row connection section 417 and a lower-row welding section 416, the lower-row connection section 417 is disposed on the base 211 and the tongue 212, the lower-row contact section 415 extends from one side of the lower-row connection section 417 to be located on the lower surface, and the lower-row welding section 416 extends from the other side of the lower-row connection section 417 to be penetrated from the base 211.
Referring to fig. 1,2,3 and 4, in the present embodiment, the outer frame 5 covers the front side of the shielding shell 11, the outer frame 5 includes a panel 51 and an extension portion 52, a window 511 with a through hole is formed on the panel 51, the window 511 is shaped to match the shell shape of the plug electrical connector, the window 511 corresponds to the plug interface 113 of the frame 111, the plug electrical connector can be inserted into the plug interface 113 from the window 511 of the outer frame 5 to the accommodating groove 112 of the shielding shell 11, and the size of the window 511 of the panel 51 is smaller than the size of the shielding shell 11, so that the plug electrical connector has guiding plugging effect when plugging. Here, the extending portions 52 extend from the panel 51 in the same direction and are fixed to the sides of the frame 111, each extending portion 52 includes a side wall 53 and a top plate 54 that are disposed at intervals and are elongated, the side walls 53 are respectively abutted against the two sides of the frame 111, the cross section of each side wall 53 is approximately L-shaped, so that each side wall 53 covers the corner above the two sides of the frame 111, the top plate 54 is abutted against the top side of the frame 111, and the top plate 54 is located between the side walls 53. In this embodiment, the side walls 53 and the top plate 54 are respectively disposed around the window 511 of the panel 51, the side walls 53 are disposed on two sides of the window 511 of the panel 51, and the top plate 54 is disposed above the window 511 of the panel 51. In addition, the outer frame 5 further includes hollow areas 55, and each hollow area 55 is formed between the top plate 54 and the side wall 53.
The extension 52 is fixed to the side of the frame 111 in the following manner: the extension portion 52 includes a sliding groove 531 and a fastening hole 541, wherein each sliding groove 531 is formed on each side wall 53, and the fastening hole 541 is disposed on the top plate 54. The shielding shell 11 includes a protrusion 15 protruding from both sides of the frame 111 and a latch 16 protruding from the top side of the frame 111. When the outer frame 5 is combined with the shielding shell 11, the protruding blocks 15 are respectively positioned in the sliding grooves 531, and the clamping blocks 16 are correspondingly clamped and fixed in the buckling holes 541, so that the problems of left-right deflection of the shielding shell 11 and loosening of the shielding shell 11 and the outer frame 5 are prevented.
In this embodiment, the surface of the panel 51 may be specially surface-treated (e.g. patterned), and when the casing 611 of the electronic product 61 is specially surface-treated, the surface of the panel 51 of the outer frame 5 may be integrated with the casing 611 of the electronic product 61. And, the outside edges of the periphery of the panel 51 are arranged into unfilled corner structures, the unfilled corner structures are formed into a stepped shape, each end edge of each unfilled corner structure is designed with smooth round corners, when the panel 51 is installed in the installation hole 612 of the shell 611, the unfilled corner structures are matched with the inner side of the installation hole 612 of the shell 611, so that the shell 611 and the panel 51 are smooth surfaces, and the shell 611 and the panel 51 are aligned on the same plane. The panel 51 includes a stopper 514, and the stopper 514 is located inside the window 511, and when the shielding shell 11 is installed in the window 511 of the panel 51, the stopper 514 can stop the shielding shell 11, so that the front end of the shielding shell 11 is limited in the window 511. In addition, the panel 51 further includes a guiding inclined surface 512, the guiding inclined surface 512 is disposed on the inner side surface of the window 511, and the guiding inclined surface 512 is used for facilitating the plug electrical connector to be plugged into the window 511 of the panel 51.
In this embodiment, the shielding shell 11 further includes contact pieces 12, each contact piece 12 extends outwards from the frame 111 and passes through each hollow area 55, and the design of each hollow area 55 provides for each contact piece 12 to penetrate and be capable of contacting the shell 611 of the electronic product 61 outside the outer frame 5, so that the shielding shell of the plug electrical connector and the shielding shell 11 of the socket electrical connector 100 are effectively conducted through the contact pieces 12, and further the problems of electromagnetic interference (Electromagnetic Interference, EMI) can be reduced. Meanwhile, each hollow area 55 does not cover the elastic sheet 14 on the frame 111, so that the elastic sheet 14 can swing upwards in each hollow area 55 when contacting the plug electrical connector.
Referring to fig. 5 and 6, in the present embodiment, the socket electrical connector 100 further includes a quick-release hook member 56, the hook member 56 extends from the panel 51, the hook member 56 includes a pressing portion 561 and an elastic hook portion 562 that are coupled together, the pressing portion 561 has a U-shaped appearance, one side of the pressing portion 561 extends from the panel 51, and the elastic hook portion 562 is located at the other side of the pressing portion 561. The housing 611 of the electronic product 61 is provided with a locking groove 613, and when the panel 51 is mounted in the mounting hole 612 of the housing 611, the elastic hook portion 562 of the hook member 56 is correspondingly locked in the locking groove 613 of the housing 611, so that the socket electrical connector 100 is stably positioned on the housing 611. When the socket electrical connector 100 is to be removed, the pressing portion 561 can be pressed to separate the elastic hook portion 562 from the buckling groove 613, so that the socket electrical connector 100 can be removed.
Referring to fig. 7, 7A, 8 and 9, a second embodiment of the electrical receptacle connector 100 according to the present invention is shown in fig. 7A, 8b and 9 b, respectively. The biggest difference between this embodiment and the first embodiment is that: the socket connector 100 of the present embodiment is a Display Port connection interface specification. The terminal rows from right to left are, in order from the front of the upper row terminal 31, a first pair of upper row signal terminals (mllan0+ -, differential signal terminals), an upper row flat ground terminal 313 (Gnd), a second pair of upper row signal terminals (mllan2+ -, differential signal terminals), two upper row flat ground terminals 313 (Gnd), a third pair of upper row signal terminals (auxch+ -, differential signal terminals), and an upper row flat power terminal 312 (DP PWR Return). Here, the transmission USB3.0 signal is satisfied for forming ten upper terminals 31. The terminal rows from right to left are, in front view, a lower flat ground terminal 413 (Gnd), a first pair of lower flat ground terminals (mllan1+ -, differential signal terminals), a lower flat ground terminal 413 (Gnd), a second pair of lower flat signal terminals (mllan3+ -, differential signal terminals), two lower flat ground terminals 413 (Gnd), a detection terminal (Hot Plug), and a lower flat power terminal 412 (DP PWR). Here, the transmission of Display Port signals can be satisfied to constitute ten lower-row terminals 41 and ten upper-row terminals 31.
Referring to fig. 10 and 10A, fig. 10 is an exploded view, and fig. 10A is a schematic view of defining a terminal pin position according to a third embodiment of the electrical receptacle connector 100 of the present invention. The biggest difference between this embodiment and the first embodiment is that: the socket electrical connector 100 of the present embodiment is of the USB Type-C connection interface specification. The terminal rows from left to right are, in order from the front of the upper row terminal 31, an upper row flat ground terminal 313 (Gnd), a first pair of upper row signal terminals (TX 1+ -, differential signal terminals), a second pair of upper row signal terminals (D + -, differential signal terminals), a third pair of upper row signal terminals (RX 2+ -, differential signal terminals), and an upper row flat Power terminal 312 (Power/VBUS), a reserved terminal (RFU) are provided between the three pairs of upper row signal terminals. Further, an upper flat ground terminal 313 (Gnd) is provided on the rightmost side. Here, the transmission USB3.0 signal is satisfied for forming twelve upper row terminals 31. In addition, in some embodiments, the leftmost or rightmost upper flat ground terminal 313 (Gnd) may be omitted, or the reserved terminal (RFU) may be further omitted. In addition, the rightmost upper ground plate terminal 313 (Gnd) may be replaced by an upper Power plate terminal 312 (Power), where the upper Power plate terminal 312 (Power) may have a width equal to the width of the upper signal plate terminal 311, and in some embodiments, the width of the upper Power plate terminal 312 may be greater than the width of the upper signal plate terminal 311, so that the electronic product 61 may be used for transmitting high current.
The lower row of terminals 41 includes a lower row of flat signal terminals 411, a lower row of flat power terminals 412, and a lower row of flat ground terminals 413, respectively. The terminal rows from right to left are, in order from the front of the lower row terminal 41, a lower row flat ground terminal 413 (Gnd), a first pair of lower row signal terminals (TX 2+ -, differential signal terminals), a second pair of lower row signal terminals (D + -, differential signal terminals), a third pair of lower row signal terminals (RX 1+ -, differential signal terminals), and a lower row flat Power terminal 412 (Power/VBUS), a reserved terminal (RFU) are provided between the three pairs of lower row differential signal terminals 411. Further, a lower flat ground terminal 413 (Gnd) is provided on the leftmost side. Here, the transmission of USB3.0 signals is compatible for the formation of twelve lower row terminals 41. In addition, in some embodiments, the leftmost or rightmost lower row of plate ground terminals 413 (Gnd) may be omitted, or the reserved terminals (RFU) may be further omitted. In addition, the leftmost bottom plate ground terminal 413 (Gnd) may be replaced by a bottom plate Power terminal 412 (Power), where the bottom plate Power terminal 412 (Power) may have a width equal to that of the bottom plate signal terminal 411, and in some embodiments, the width of the bottom plate Power terminal 412 may be larger than that of the bottom plate signal terminal 411, so that the electronic product 61 used for transmitting a large current may be used.
The upper flat signal terminals 311 are located on the upper surface and transmit a set of first signals (i.e. USB3.0 signals), the upper soldering segments 316 penetrate through the bottom surface of the base 211, and the upper soldering segments 316 are bent into a horizontal shape and become SMT pins for use. The lower flat signal terminals 411 are located on the lower surface to transmit a set of second signals (i.e. USB3.0 signals), the lower soldering sections 416 penetrate through the bottom surface of the base 211, and the lower soldering sections 416 are bent into a horizontal shape to be used as SMT pins or extend vertically downward to be used as DIP pins.
Referring to fig. 10 and 10A again, in the present embodiment, as the arrangement of the upper row of terminals 31 and the lower row of terminals 41, the upper row of terminals 31 and the lower row of terminals 41 are respectively disposed on the upper surface and the lower surface of the tongue plate 212, and the upper row of terminals 31 and the lower row of terminals 41 are point-symmetrical with each other with the center point of the accommodating groove 112 as the symmetry center, the point symmetry means that after the upper row of terminals 31 and the lower row of terminals 41 are rotated 180 degrees according to the symmetry center as the rotation center, the rotated upper row of terminals 31 and the rotated lower row of terminals 41 are completely overlapped, that is, the rotated upper row of terminals 31 is located at the original arrangement position of the lower row of terminals 41, and the rotated lower row of terminals 41 is located at the original arrangement position of the upper row of terminals 31. In other words, the upper row terminals 31 and the lower row terminals 41 are upside down, and the arrangement of the upper row contact sections 315 is opposite to the arrangement of the lower row contact sections 415. The plug electrical connector is inserted in the socket electrical connector 100 in a forward direction for transmitting a set of first signals, and also inserted in the socket electrical connector 100 in a reverse direction for transmitting a set of second signals, wherein the transmission specification of the set of first signals is in accordance with the transmission specification of the set of second signals. The plug connector is inserted into the socket connector 100 in a forward or reverse direction to transmit signals.
In addition, in some embodiments, when the plug electrical connector has the upper and lower rows of terminals 41, the socket electrical connector 100 may omit the upper row of terminals 31 or the lower row of terminals 41, when the upper row of terminals 31 is omitted, the plug electrical connector is plugged into the socket electrical connector 100 in a forward or reverse direction, one of the upper and lower rows of terminals 41 of the plug electrical connector may contact the upper row of terminals 31, when the lower row of terminals 41 is omitted, the plug electrical connector is plugged into the socket electrical connector 100 in a forward or reverse direction, one of the upper and lower rows of terminals 41 of the plug electrical connector may contact the lower row of terminals 41, or the effect of plugging the plug electrical connector into the interior of the socket electrical connector 100 in a forward or reverse direction may not be restricted.
The arrangement position of each upper row of terminals 31 corresponds to the arrangement position of each lower row of terminals 41 from the front view of the upper row of terminals 31 and the lower row of terminals 41. That is, the arrangement position of the upper row of contact sections 315 is aligned with the arrangement position of the lower row of contact sections 415, which is not limited thereto. In some embodiments, the arrangement position of each upper row of terminals 31 and the arrangement position of each lower row of terminals 41 may be further offset. That is, the arrangement positions of the upper row contact sections 315 are offset from the arrangement positions of the lower row contact sections 415. In addition, the arrangement position of each upper row of welding segments 316 may also correspond to the arrangement position of each lower row of welding segments 416. Alternatively, the alignment of the upper row of weld segments 316 may be further offset from the alignment of the lower row of weld segments 416. Therefore, when the upper row contact section 315 and the lower row contact section 415 transmit signals, the crosstalk signal interference effect is effectively improved by the staggered positional relationship. Specifically, the terminals of the plug electrical connector are also arranged corresponding to the positions of the upper row terminals 31 and the lower row terminals 41 of the socket electrical connector 100, so that the upper row terminals 41 and the lower row terminals 41 of the plug electrical connector can correspondingly contact the upper row terminals 31 and the lower row terminals 41 to transmit power or signals.
In the above embodiment, the upper row terminal 31 or the lower row terminal 41 are respectively suitable for transmitting the USB3.0 signal, which is just an example. In some embodiments, when the USB2.0 signal is transmitted, for example, the upper terminals 31 may omit the first pair of upper signal terminals (TX 1+ -, differential signal terminals), the third pair of upper signal terminals (RX 2+ -, differential signal terminals), and at least the second pair of upper signal terminals (D + -, differential signal terminals) and the upper flat Power terminal 312 (Power/VBUS) for transmitting the USB2.0 signal. For example, the lower row of terminals 41 may omit the first pair of lower row signal terminals (TX 2+ -, differential signal terminals) and the third pair of lower row signal terminals (RX 1+ -, differential signal terminals), and only the second pair of lower row signal terminals (D + -, differential signal terminals) and the lower row flat Power supply terminal 412 (Power/VBUS) may be reserved for transmitting USB2.0 signals.
Referring to fig. 10 and 10A again, in the present embodiment, the distance between the upper flat power terminal 312 and the front side of the tongue 212 is smaller than the distance between the upper flat signal terminal 311 and the front side of the tongue 212, and the distance between the upper flat ground terminal 313 and the front side of the tongue 212 is smaller than the distance between the upper flat signal terminal 311 and the front side of the tongue 212. When the plug electrical connector is plugged into the socket electrical connector 100, the upper flat power terminal 312 or the upper flat ground terminal 313 is preferentially contacted with the terminal of the plug electrical connector, and the upper flat signal terminal 311 is subsequently contacted with the terminal of the plug electrical connector, so that it is ensured that the power or signal transmission is started when the plug electrical connector is completely plugged into the socket electrical connector 100. The problem of arc burning generated under the condition that the upper flat signal terminals 311 and the terminals of the plug electric connector are in poor contact and incomplete contact state is formed under the condition that the plug electric connector is not completely inserted into the socket electric connector 100 in place can be avoided.
The socket electric connector can be assembled in the mounting hole of the shell of the electronic product by utilizing the outer frame by covering and combining the outer frame on the front side of the shielding shell, and can be correspondingly assembled with the mounting hole of the shell by adopting an outer frame structure on various socket electric connectors with different connection interface specifications (such as HDMI, display Port, USB Type-C and other connection interface specifications). The problem that all kinds of socket electric connectors with different connecting interface specifications can be assembled with corresponding parts such as the size of each corresponding mounting hole on the shell is avoided. In addition, the shielding shell extends through each hollow area of the outer frame with the contact piece to contact with the shell of the electronic product, so that the shielding shell of the plug electric connector and the shielding shell of the socket electric connector are effectively conducted through the contact piece, and the problem of electromagnetic interference (Electromagnetic Interference, EMI) can be further reduced. In addition, the quick-dismantling type clamping hook structure is adopted to facilitate the separation or assembly of the socket electric connector and the shell of the electronic product.
In addition, the window size of the panel of the outer frame is smaller than the size of the shielding shell, so that the plug electric connector has guiding and inserting function when in inserting. In addition, the design of the unfilled corner structure around the panel, when the panel is installed in the installation hole of the shell, the unfilled corner structure is matched with the inner side of the installation hole of the shell, so that the shell and the panel are smooth surfaces, and the shell and the panel are aligned on the same plane.
In addition, for the USB Type-C Type socket electrical connector, the upper row of terminals and the lower row of terminals are upside down, the arrangement mode of the upper row of contact sections is opposite to that of the lower row of contact sections, when the plug electrical connector is plugged into the socket electrical connector in a forward direction, the terminals of the plug electrical connector can be contacted with the upper row of contact sections, and when the plug electrical connector is plugged into the socket electrical connector in a reverse direction, the terminals of the plug electrical connector can also be contacted with the lower row of contact sections, and the socket electrical connector has the effect of not limiting forward or reverse plugging.