Electromagnetic shielding reinforced electric connector

Abstract

The invention discloses an electromagnetic shielding reinforced electric connector which comprises an insulating rubber core and a plurality of terminals. The plurality of terminals are arranged along a first direction. The plurality of terminals comprise a first high-frequency signal terminal pair, a second high-frequency signal terminal pair, a first grounding terminal, a second grounding terminal, a conventional signal terminal pair and a power supply terminal. The fixed connection parts and the electrical connection parts of the plurality of terminals are arranged in a row on one side of the electromagnetic shielding reinforced electric connector along a first direction. The fixed connection parts and the electric connection parts of the first high-frequency signal terminal pair and the second high-frequency signal terminal pair are mutually connected; and a fixed connection part and an electric connection part of a first grounding terminal, a second grounding terminal or a power supply terminal are arranged between the fixed connection parts and the electric connection parts of the first high-frequency signal terminal pair and the conventional signal terminal pair or / and between the fixed connection parts and the electric connection parts of the second high-frequency signal terminal pair and the conventional signal terminal pair.

Description

Technical Field

[0001] The present invention relates to the technical field of an electrical connector, and in particular to an electromagnetic shielding enhanced electrical connector. Background Art

[0002] Electrical connectors are used to connect different electronic components or modules so that electronic signals can be transmitted between different electronic components or modules via the electrical connectors. The electrical connector is docked with the counterpart connector, and then the signal is transmitted by the terminals of the electrical connector itself contacting the terminals of the counterpart connector. As the demand for signal transmission speed continues to increase, the transmission signals of the electrical connector include high-frequency signals in addition to conventional medium and low-frequency signals. For example, the pins 5, 6 and pins 8, 9 defined in the USB 3.0 specification are used to transmit high-frequency differential signals. Therefore, how to prevent crosstalk caused by the transmission of high-frequency signals has become an important technical issue. Summary of the invention

[0003] In view of this, an object of the present invention is to provide an electromagnetic shielding enhanced electrical connector, which provides an electromagnetic shielding structure for high-frequency signal terminal pairs to prevent crosstalk.

[0004] The present invention provides an electromagnetic shielding enhanced electrical connector, comprising an insulating rubber core and a plurality of terminals. The plurality of terminals are arranged along a first direction, and each connector terminal comprises a docking portion, a fixed portion and an electrical connection portion, wherein the fixed portion is fixed to the insulating rubber core, the docking portion is docked with a pair of opposing connectors, and the electrical connection portion is electrically connected to a circuit board. The plurality of terminals comprise a first high-frequency signal terminal pair, a second high-frequency signal terminal pair, a first grounding terminal, a second grounding terminal, a conventional signal terminal pair and a power terminal. The plurality of docking portions of the plurality of terminals are sequentially arranged in a front row and a rear row along the first direction, wherein the front row comprises the docking portion of the first high-frequency signal terminal pair, the docking portion of the first grounding terminal and the docking portion of the second high-frequency signal terminal pair, and the rear row comprises the docking portion of the second grounding terminal, the docking portion of the conventional signal terminal pair and the docking portion of the power terminal. The fixed portions of the terminals are arranged in a row along the first direction, and the electrical connection portions of the terminals are arranged in a row along the first direction. There are fixed portions and electrical connection portions of the first grounding terminal, the second grounding terminal or the power supply terminal between the fixed portions and the electrical connection portions of the first high-frequency signal terminal pair and the second high-frequency signal terminal pair, between the fixed portions and the electrical connection portions of the first high-frequency signal terminal pair and the conventional signal terminal pair, or / between the fixed portions and the electrical connection portions of the second high-frequency signal terminal pair and the conventional signal terminal pair.

[0005] In another embodiment, the first direction is parallel to the circuit board, and the electrical connection portions of the plurality of terminals are soldered to the solder pads of the circuit board.

[0006] In another embodiment, the docking portions of the terminals in the front row are closer to the docking interface than the docking portions of the terminals in the rear row, the docking portions of the conventional signal terminal pair are located between the docking portions of the second ground terminal and the power terminal, and the docking portions of the first ground terminal are located between the docking portions of the first high-frequency signal terminal pair and the second high-frequency signal terminal pair.

[0007] In another embodiment, the fixing portion of the first ground terminal has a bifurcated structure and includes a first bifurcated portion and a second bifurcated portion, and the mating portion of the conventional signal terminal pair is located between the first bifurcated portion and the second bifurcated portion.

[0008] In another embodiment, the first bifurcated portion is located between the mating portion of the conventional signal terminal pair and the mating portion of the second ground terminal, and the second bifurcated portion is located between the mating portion of the power terminal and the mating portion of the conventional signal terminal pair.

[0009] In another embodiment, the docking portion of the power terminal is located between the fixed portion and the second bifurcated portion of the second high-frequency signal terminal pair, and the docking portion of the first ground terminal is located between the fixed portion and the first bifurcated portion of the first high-frequency signal terminal pair.

[0010] In another embodiment, the width of the first bifurcation portion and the second bifurcation portion at the fixed portion is greater than the width of the fixed portions of the first high-frequency signal terminal pair, the second high-frequency signal terminal pair, and the conventional signal terminal pair; the width of the second grounding terminal and the power terminal at the fixed portion is greater than the width of the first high-frequency signal terminal pair and the second high-frequency signal terminal pair at the fixed portion; the width of the second grounding terminal and the power terminal at the electrical connection portion is greater than the width of the first high-frequency signal terminal pair, the second high-frequency signal terminal pair, the conventional signal terminal pair, the first bifurcation portion of the first grounding terminal, and the second bifurcation portion of the first grounding terminal at the electrical connection portion.

[0011] In another embodiment, the insulating core includes a base and a tongue portion, the tongue portion is connected to the base, the tongue portion has three first hollow portions and five second hollow portions, the docking portions of the terminals in the front row are correspondingly arranged in the second hollow portions, and the docking portions of the terminals in the rear row are correspondingly arranged in the first hollow portions.

[0012] In another embodiment, it further includes two shielding terminals, which are respectively arranged outside the first high-frequency signal terminal pair and outside the second high-frequency signal terminal pair, and the shielding terminals are located outside the tongue portion.

[0013] The electromagnetic shielding enhanced electrical connector of the present invention is arranged in a row along a first direction through terminals, and there are fixed portions and electrical connection portions of the first high-frequency signal terminal pair and the second high-frequency signal terminal pair, between the fixed portions and the electrical connection portions of the first high-frequency signal terminal pair and the conventional signal terminal pair, or / between the fixed portions and the electrical connection portions of the second high-frequency signal terminal pair and the conventional signal terminal pair, so that the first high-frequency signal terminal pair and the conventional signal terminal pair, between the second high-frequency signal terminal pair and the conventional signal terminal pair, and between the first high-frequency signal terminal pair and the second high-frequency signal terminal pair can have better electromagnetic shielding, prevent cross talk, and avoid noise and signal distortion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a perspective view of an embodiment of an electromagnetic shielding enhanced electrical connector of the present invention.

[0015] Figure 2 yes Figure 1 A three-dimensional exploded view of the electromagnetic shielding enhanced electrical connector.

[0016] Figure 3 yes Figure 1 A three-dimensional diagram of the terminal configuration of an electromagnetic shielding enhanced electrical connector.

[0017] Figure 4 yes Figure 3 A stereoscopic view from another perspective of the terminal configuration of the electromagnetic shielding enhanced electrical connector.

[0018] Figure 5 yes Figure 1 A three-dimensional diagram of the combination of the terminal and the insulating rubber core of the electromagnetic shielding enhanced electrical connector.

[0019] Figure 6 yes Figure 1 A three-dimensional diagram of the combination of the terminal and the insulating rubber core of the electromagnetic shielding enhanced electrical connector with the metal shell.

[0020] Description of reference numerals: 1-electromagnetic shielding reinforced electrical connector; 11-terminal; 11a-first high-frequency signal terminal pair; 11b-second high-frequency signal terminal pair; 11c-first grounding terminal; 11d-second grounding terminal; 11e-conventional signal terminal pair; 11f-power terminal; 11g-shielding terminal; 12-insulating rubber core; 14-metal shell; 111-electrical connection portion; 112-joining portion; 112a-first bifurcation portion; 11 2b-second bifurcation; 113-fixed portion; 114-shielding portion; 121-tongue portion; 122-base; 1211-first hollow portion; 1212-second hollow portion; 1221-connecting surface; 1222-installing surface; 1223-bearing inclined surface; 141-first opening; 142-second opening; 143-plug pin; A-front row; B-rear row; L1-first direction; P-circuit board; P1-soldering pad; P2-through hole. DETAILED DESCRIPTION

[0021] See also Figure 1 and Figure 2 , which shows an embodiment of the electromagnetic shielding enhanced electrical connector of the present invention. The electromagnetic shielding enhanced electrical connector 1 of this embodiment includes a plurality of terminals 11 , an insulating rubber core 12 and a metal shell 14 .

[0022] A plurality of terminals 11 are arranged in a row along a first direction L1, and the insulating rubber core 12 is combined with the plurality of terminals 11, so that the plurality of terminals 11 are positioned on the insulating rubber core 12 to form a fixed structure. The metal shell 14 covers the insulating rubber core 12 and the plurality of terminals 11 to form a space for docking with the opponent's electrical connector, while strengthening the structure of the electromagnetic shielding enhanced electrical connector 1, and the metal material can absorb electromagnetic waves, so it can also play an electromagnetic shielding effect. The plurality of terminals 11 are electrically connected to a circuit board P. The first direction L1 of this embodiment is perpendicular to the circuit board P, so the plurality of terminals 11 are arranged in a direction perpendicular to the circuit board P, and the insulating rubber core 12 and the metal shell 14 form an upright structure corresponding to the arrangement of the terminals 11.

[0023] The plurality of terminals 11 are formed by stamping process with metal strips, and each terminal 11 includes an electrical connection portion 111, a docking portion 112, and a fixing portion 113. The fixing portion 113 is fixed to the insulating rubber core 12, the docking portion 112 docks with a terminal of a pair of connectors, and the electrical connection portion 111 is electrically connected to the circuit board 20.

[0024] The electromagnetic shielding enhanced electrical connector 1 of this embodiment is a universal serial bus (USB) electrical connector that complies with the USB 3.0 specification. The terminal 11 includes a first high-frequency signal terminal pair 11a, a second high-frequency signal terminal pair 11b, a first grounding terminal 11c, a second grounding terminal 11d, a conventional signal terminal pair 11e, and a power terminal 11f.

[0025] See also Figure 3 , the electrical connection parts 111 of the plurality of terminals 11 are arranged in a row, and the fixing parts 113 of the plurality of terminals 11 are arranged in a row. The electrical connection part 111 and the fixing part 113 of the first ground terminal 11c form a bifurcated structure after the docking part 112, and the bifurcated structure of the docking part 112 of the first ground terminal 11c includes a first bifurcated part 112a and a second bifurcated part 112b, and the conventional signal terminal pair 11e is located as a whole between the first bifurcated part 112a and the second bifurcated part 112b, and the width of the first bifurcated part 112a and the second bifurcated part 112b at the fixing part 113 is greater than the width of the fixing part 113 of the conventional signal terminal pair 11e. The electrical connection parts 111 and the fixed parts 113 of the plurality of terminals 11 are, from top to bottom, the first high-frequency signal terminal pair 11a, the second grounding terminal 11d, the first branching part 112a of the first grounding terminal 11c, the conventional signal terminal pair 11e, the second branching part 112b of the first grounding terminal 11c, the power terminal 11f and the second high-frequency signal terminal pair 11b.

[0026] For the electrical connection portion 111, the electrical connection portion 111 of the second ground terminal 11d and the power terminal 11f has the same width, the width of the electrical connection portion 111 of the first high-frequency signal terminal pair 11a, the second high-frequency signal terminal pair 11b, the first ground terminal 11c, the conventional signal terminal pair 11e and the power terminal 11f is equal, and the width of the electrical connection portion 111 of the second ground terminal 11d and the power terminal 11f is greater than the width of the electrical connection portion 111 of the first high-frequency signal terminal pair 11a, the second high-frequency signal terminal pair 11b, the first ground terminal 11c, the conventional signal terminal pair 11e and the power terminal 11f. The electrical connection portion 111 of this embodiment is a solder foot, which is soldered to the solder pad P1 of the circuit board P. The electrical connection portion 111 of this embodiment is arranged along the first direction L1 at equal intervals from each other. However, the present invention is not limited thereto. In other embodiments, the electrical connection portion may also be a pin, which is plugged into the through hole of the circuit board, or a combination of a solder foot and a pin.

[0027] The docking parts 112 of the plurality of terminals 11 are divided into a front row A and a rear row B according to the nine pins of the USB 3.0 specification. The docking parts 112 of the front row A are respectively the first high-frequency signal terminal pair 11a, the first ground terminal 11c and the second high-frequency signal terminal pair 11b from top to bottom. The docking parts 112 of the rear row B are respectively the second ground terminal 11d, the normal signal terminal pair 11e and the power terminal 11f from top to bottom.

[0028] The fixing portions 113 of the plurality of terminals 11 are arranged in a row along the first direction L1, and the electrical connection portions 111 of the plurality of terminals 11 are also arranged in a row along the first direction L1. The first direction L1 is parallel to the surface of the circuit board P. Therefore, the electrical connection portions 111 of the plurality of terminals 11 are soldered to the solder pads P1 of the circuit board P.

[0029] For the electrical connection parts 111 and the fixed parts 113 of the plurality of terminals 11, the electrical connection parts 111 and the fixed parts 113 of the first high-frequency signal terminal pair 11a and the conventional signal terminal pair 11e are separated by the electrical connection parts 111 and the fixed parts 113 of the first ground terminal 11c and the first fork part 112a. The electrical connection parts 111 and the fixed parts 113 of the second high-frequency signal terminal pair 11b and the conventional signal terminal pair 11e are separated by the electrical connection parts 111 and the fixed parts 113 of the power terminal 11f and the second fork part 112b. The electrical connection parts 111 and the fixed parts 113 of the first high-frequency signal terminal pair 11a and the second high-frequency signal terminal pair 11b are separated by the electrical connection parts 111 and the fixed parts 113 of the first ground terminal 11c, the second ground terminal 11d, the conventional signal terminal pair 11e, and the power terminal 11f. In addition, as mentioned above, the width of the fixing portion 113 of the first branch portion 112a and the second branch portion 112b of the second grounding terminal 11d of this embodiment is set to be larger than the width of the fixing portion 113 of other terminals, and although the width of the fixing portion 113 of the first grounding terminal 11c and the power terminal 11f is smaller than the width of the fixing portion 113 of the first branch portion 112a and the second branch portion 112b, it is still larger than the width of the fixing portion 113 of other terminals, thereby forming a better electromagnetic shielding effect for the high-frequency signals of the first high-frequency signal terminal pair 11a and the second high-frequency signal terminal pair 11b.

[0030] The multiple terminals 11 of this embodiment further include two shielding terminals 11g, which are respectively disposed outside the first high-frequency signal terminal pair 11a and outside the second high-frequency signal terminal pair 11b. The two shielding terminals 11g can provide additional electromagnetic shielding for the first high-frequency signal terminal pair 11a and the second high-frequency signal terminal pair 11b. The shielding terminal 11g has a shielding portion 114 and a retaining portion 113, but does not have an electrical connection portion. The shielding terminal 11g serves as an electromagnetic shield but does not transmit electronic signals.

[0031] See also Figure 4 , the insulating rubber core 12 is combined with a plurality of terminals 11 by an insert molding process. The insulating rubber core 12 of the present embodiment includes a tongue portion 121 and a base portion 122. The tongue portion 121 has three first hollow portions 1211 and five second hollow portions 1212. The mating portions 112 of the terminals 11 of the front row A are correspondingly disposed in the second hollow portions 1212, and the mating portions 112 of the terminals 11 of the rear row B are correspondingly disposed in the first hollow portions 1211. Through the first hollow portions 1211 and the second hollow portions 1212, the mating portions 112 of the terminals 11 of the front row A and the mating portions 112 of the terminals 11 of the rear row B can be exposed from the tongue portion 121 and contact the terminals of the counterpart electrical connector. The fixing portion 113 of the shielding terminal 11 g is combined with the base portion 122 of the insulating rubber core 12 , and the shielding portion 114 of the shielding terminal 11 g protrudes from the base portion 122 and is located at two opposite sides of the tongue portion 121 .

[0032] The tongue portion 121 is connected to the base portion 122 . The electrical connection portion 111 of the terminal 11 protrudes from the lower end of the base portion 122 and abuts against the circuit board P, so that the electrical connection portion 111 is soldered to the solder pad P1 .

[0033] See also Figure 5 and Figure 6 , the metal shell 14 is disposed on the insulating rubber core 12, and the base 122 of the insulating rubber core 12 supports the metal shell 14. The metal shell 14 of this embodiment has a first opening 141 and a second opening 142. The first opening 141 is used as a docking interface for docking with the opponent electrical connector. The docking portion 112 of the terminal 11 is disposed near the first opening 141, and the metal shell 14 forms a docking space corresponding to the position of the tongue portion 121 for the opponent electrical connector to be inserted, and the terminal of the opponent electrical connector is contacted with the terminal 11 of the electromagnetic shielding enhanced electrical connector 1 of this embodiment to form an electrical connection and transmit signals. The second opening 142 is used as a base 122 for the insulating rubber core 12 to be exposed, so that the electrical connection portion 111 of the terminal 11 can be abutted with the solder pad P1 of the circuit board P.

[0034] In addition to forming a docking space with the opponent's electrical connector, the metal shell 14 is wrapped around the base 122 of the insulating rubber core 12, which can enhance the overall structural strength of the electromagnetic shielding enhanced electrical connector 1. The metal shell 14 can absorb electromagnetic waves and form an external electromagnetic shielding for the terminal 11 to avoid noise generated by the signal transmitted at the terminal 11.

[0035] The metal shell 14 is inserted into the through hole P2 of the circuit board P via the plug pins 143 , so that the electromagnetic shielding enhanced electrical connector 1 is fixed to the circuit board P.

[0036] The electromagnetic shielding enhanced electrical connector of the present invention is arranged in a row along a first direction through terminals, and there are fixed portions and electrical connection portions of the first high-frequency signal terminal pair and the second high-frequency signal terminal pair, between the fixed portions and the electrical connection portions of the first high-frequency signal terminal pair and the conventional signal terminal pair, or / between the fixed portions and the electrical connection portions of the second high-frequency signal terminal pair and the conventional signal terminal pair, so that the first high-frequency signal terminal pair and the conventional signal terminal pair, between the second high-frequency signal terminal pair and the conventional signal terminal pair, and between the first high-frequency signal terminal pair and the second high-frequency signal terminal pair can have better electromagnetic shielding, prevent cross talk, and avoid noise and signal distortion.

[0037] The above description is only a preferred embodiment of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. That is, all simple equivalent changes and modifications made according to the claims and the description of the present invention are still within the scope of the present invention. In addition, any embodiment or claim of the present invention does not have to achieve all the purposes, advantages or features provided by the present invention. In addition, the abstract and the title are only used to assist in searching patent documents, and are not used to limit the scope of protection of the present invention. In addition, the terms "first", "second", etc. mentioned in the description or claims of the present invention are only used to name the name of the element or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

Claims

1. An electromagnetic shielding enhanced electrical connector, characterized in that: include: an insulating rubber core; and A plurality of terminals are arranged along a first direction, each connector terminal comprises a docking portion, a fixing portion and an electrical connection portion, the fixing portion is fixed to the insulating rubber core, the docking portion docks with a counterpart connector, and the electrical connection portion is electrically connected to a circuit board; The plurality of terminals include a first high-frequency signal terminal pair, a second high-frequency signal terminal pair, a first ground terminal, a second ground terminal, a conventional signal terminal pair and a power terminal; wherein the plurality of the mating portions of the plurality of terminals are sequentially arranged in a front row and a rear row along the first direction, the front row including the mating portion of the first high-frequency signal terminal pair, the mating portion of the first ground terminal and the mating portion of the second high-frequency signal terminal pair, and the rear row including the mating portion of the second ground terminal, the mating portion of the conventional signal terminal pair and the mating portion of the power terminal; wherein the fixing portions of the plurality of terminals are arranged in a row along the first direction, and the electrical connection portions of the plurality of terminals are arranged in a row along the first direction; The plurality of fixed portions and the plurality of electrical connection portions of the first high-frequency signal terminal pair and the second high-frequency signal terminal pair, the plurality of fixed portions and the plurality of electrical connection portions of the first high-frequency signal terminal pair and the conventional signal terminal pair, or / and the plurality of fixed portions and the plurality of electrical connection portions of the second high-frequency signal terminal pair and the conventional signal terminal pair are provided with the plurality of fixed portions and the plurality of electrical connection portions of the first ground terminal, the second ground terminal or the power terminal.

2. The electromagnetic shielding enhanced electrical connector according to claim 1, characterized in that: The first direction is parallel to the circuit board, and the plurality of electrical connection portions of the plurality of terminals are soldered to solder pads of the circuit board.

3. The electromagnetic shielding enhanced electrical connector according to claim 2, characterized in that: The plurality of docking portions in the front row are closer to the edge of the insulating rubber core than the plurality of docking portions in the rear row, the plurality of docking portions of the conventional signal terminal pair are located between the second grounding terminal and the plurality of docking portions of the power terminal, and the docking portion of the first grounding terminal is located between the plurality of docking portions of the first high-frequency signal terminal pair and the plurality of docking portions of the second high-frequency signal terminal pair.

4. The electromagnetic shielding enhanced electrical connector according to claim 1, characterized in that: The fixing portion of the first grounding terminal has a forked structure and includes a first forked portion and a second forked portion. The plurality of docking portions of the conventional signal terminal pair are located between the first forked portion and the second forked portion.

5. The electromagnetic shielding enhanced electrical connector according to claim 4, characterized in that: The first bifurcated portion is located between the plurality of mating portions of the conventional signal terminal pair and the mating portion of the second ground terminal, and the second bifurcated portion is located between the mating portion of the power terminal and the plurality of mating portions of the conventional signal terminal pair.

6. The electromagnetic shielding enhanced electrical connector according to claim 5, characterized in that: The docking portion of the power terminal is located between the fixing portion and the second bifurcated portion of the second high-frequency signal terminal pair, and the docking portion of the first grounding terminal is located between the fixing portion and the first bifurcated portion of the first high-frequency signal terminal pair.

7. The electromagnetic shielding enhanced electrical connector according to claim 4, characterized in that: The width of the first bifurcation and the second bifurcation at the fixed portion is greater than the width of the fixed portion of the first high-frequency signal terminal pair, the second high-frequency signal terminal pair and the conventional signal terminal pair; the width of the second grounding terminal and the power terminal at the fixed portion is greater than the width of the first high-frequency signal terminal pair and the second high-frequency signal terminal pair at the fixed portion; the width of the second grounding terminal and the power terminal at the electrical connection portion is greater than the width of the first high-frequency signal terminal pair, the second high-frequency signal terminal pair, the conventional signal terminal pair, the first bifurcation of the first grounding terminal and the second bifurcation of the first grounding terminal at the electrical connection portion.

8. The electromagnetic shielding enhanced electrical connector according to claim 1, characterized in that: The insulating core includes a base and a tongue portion, the tongue portion is connected to the base, the tongue portion has three first hollow portions and five second hollow portions, the plurality of docking portions in the front row are correspondingly arranged at the five second hollow portions, and the plurality of docking portions in the rear row are correspondingly arranged at the three first hollow portions.

9. The electromagnetic shielding enhanced electrical connector according to claim 8, characterized in that: The plurality of terminals further include two shielding terminals, which are respectively arranged outside the first high-frequency signal terminal pair and outside the second high-frequency signal terminal pair, and the two shielding terminals are located outside the tongue portion.

10. The electromagnetic shielding enhanced electrical connector according to claim 8, characterized in that: The invention also comprises a metal shell covering the insulating rubber core. The metal shell has a pair of interfaces. The butt joints of the plurality of terminals are close to the butt joints. The metal shell is clamped on the base of the insulating rubber core.

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