Structure of electrical connector

An improved structure of an electrical connector generally includes a shielding enclosure, at least one insulation body, an upper transmission conductor assembly, and a lower transmission conductor assembly. The upper and lower transmission conductor assemblies include an upper grounding terminal assembly, an upper power terminal assembly, a lower grounding terminal assembly, and a lower power terminal assembly, of which each terminal assembly defines a soldering section, an extension section, and a contact section. The soldering section has a width from 0.35 mm to 0.45 mm and a thickness from 0.15 mm to 0.25 mm. The extension section has a width from 0.35 mm to 0.45 mm and a thickness from 0.15 mm to 0.25 mm. The contact section has a width from 0.195 mm to 0.295 mm and a thickness from 0.15 mm to 0.25 mm. With such an arrangement, electrical current loading of the terminals can be effectively increased to meet the need for a large current without increasing noise interference.

TECHNICAL FIELD OF THE INVENTION

The present invention relates generally to an improved structure of an electrical connector, and more particularly to an improved structure of an electrical connector, in which widths and thicknesses of a grounding terminal and a power terminal are increased, in a limited manner, in order to meet the need for supply of a large electrical current and also to eliminate noise interference.

DESCRIPTION OF THE PRIOR ART

Universal serial bus (UBS) has been widely used due to being capable of hot plugging. Transmission speeds of electronic signals have been constantly increased and thus, interfaces for transmission of electronic signals must be unceasingly improved and renovated, such as variation of the type and number of interfaces for signal transmission, in order to increase the speed of transmission of electronic signals. This also causes expansion of the interface for transmission of electronic signals and consequently, drawbacks such as occupying additional space and influencing circuit layout may result.

Due to miniaturization of all sorts of electronic products, a high-speed transmission interface arranged therein must also be subjected to miniaturization in order to increase the number of metal conductors and also the distribution density thereof. The conventional USB interfaces are arranged such that metal conductors thereof are arranged to be very close, spatially, to each other so that capacitive coupling would occur during the transmission of signals and thus increasing interference with the transmission of the signals and lowering stability of signal transmission. In addition, impedance matching is necessary between a high-speed transmission interface and a system main board interface and interference can only be reduced with such a condition satisfied to allow signal transmission to be correctly carried out between the high-speed transmission interface and the system main board interface; otherwise signal transmission conducted between the high-speed transmission interface and the system main board interface would result in signal reflection, leading to loss, deformation, and distortion of electronic signals, eventually making bandwidth and quality of electronic signal not reaching standards and affecting normal operations of electronic devices.

Thus, it is a challenge of those involved in this industry to provide a solution that overcomes the problems and drawbacks of the prior art and allows for an increase of an electrical current to be transmitted with a limited arrangement of quantity, size, and volume of terminals, while not affecting transmission quality.

SUMMARY OF THE INVENTION

The primary object of the present invention is to increase widths and thicknesses of a grounding terminal and a power terminal of a high-frequency connector to predetermined values that meet the need for a large electrical current without causing a negative effect of noise interference.

To achieve the above object, the present invention provides a structure that comprises: a shielding enclosure and at least one the insulation body arranged inside the shielding enclosure. The insulation body comprises an upper transmission conductor assembly mounted thereto. The upper transmission conductor assembly comprises an upper grounding terminal assembly and an upper power terminal assembly arranged in the upper grounding terminal assembly. Further, the insulation body comprises a lower transmission conductor assembly mounted thereto. The lower transmission conductor assembly comprises a lower grounding terminal assembly and a lower power terminal assembly arranged in the lower grounding terminal assembly. Further, the upper grounding terminal assembly, the upper power terminal assembly, the lower grounding terminal assembly, and the lower power terminal assembly define, at one end thereof, soldering sections. The soldering sections have a width that is from 0.35 mm to 0.45 mm. The soldering sections have a thickness that is from 0.15 mm to 0.25 mm. The upper grounding terminal assembly, the upper power terminal assembly, the lower grounding terminal assembly, and the lower power terminal assembly define thereon extension sections respectively at one side of the soldering sections. The extension sections have a width that is from 0.35 mm to 0.45 mm. The extension sections have a thickness that is from 0.15 mm to 0.25 mm. And, the upper grounding terminal assembly, the upper power terminal assembly, the lower grounding terminal assembly, and the lower power terminal assembly define thereon contact sections located on one side of the extension sections that is distant from the soldering sections. The contact sections have a width that is from 0.195 mm to 0.295 mm. The contact sections have a thickness that is from 0.15 mm to 0.25 mm. When a user arranges terminal volumes of a connector according to such figures, electrical current loading of the terminals can be effectively increased to meet the need for supply of a large current and also to eliminate noise interference.

With the above-described technique, the drawbacks of the conventional high-frequency connectors that the electrical current loading of the terminals is insufficient, the volume of the terminals is excessively large, and noise interference is severe can be overcome and the above advantages can be achieved.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

As shown inFIGS. 1-5, the drawings clearly show that the present invention comprises:

a shielding enclosure1;

at least one insulation body2arranged inside the shielding enclosure1;

an upper transmission conductor assembly3mounted on the insulation body2, the upper transmission conductor assembly3comprising an upper grounding terminal assembly31and an upper power terminal assembly32arranged in the upper grounding terminal assembly31;

a lower transmission conductor assembly4mounted to the insulation body2, the lower transmission conductor assembly4comprising a lower grounding terminal assembly41and a lower power terminal assembly42arranged in the lower grounding terminal assembly41;

a plurality of soldering sections5defined at an end of the upper grounding terminal assembly31, the upper power terminal assembly32, the lower grounding terminal assembly41, and the lower power terminal assembly42, the soldering sections5having a width (first width W1) that is from 0.35 mm to 0.45 mm, the soldering sections5having a thickness (first thickness H1) that is from 0.15 mm to 0.25 mm; a plurality of extension sections6defined on the upper grounding terminal assembly31, the upper power terminal assembly32, the lower grounding terminal assembly41, and the lower power terminal assembly42and located at one side of the soldering sections5, the extension sections6having a width (second width W2) that is from 0.35 mm to 0.45 mm, the extension sections6having a thickness (second thickness H2) that is from 0.15 mm to 0.25 mm; and

a plurality of contact sections7defined on the upper grounding terminal assembly31, the upper power terminal assembly32, the lower grounding terminal assembly41, and the lower power terminal assembly42and located at one side of the extension sections6that is distant from the soldering sections5, the contact sections7having a width (third width W3) that is from 0.195 mm to 0.295 mm, the contact sections7having a thickness (third thickness H3) that is from 0.15 mm to 0.25 mm.

The upper grounding terminal assembly31comprises a first upper grounding terminal311and a second upper grounding terminal312that is arranged at one side of the first upper grounding terminal311. The upper power terminal assembly32comprises a first upper power terminal321and a second upper power terminal322that is arranged at one side of the first upper power terminal321. The lower grounding terminal assembly41comprises a first lower grounding terminal411and a second lower grounding terminal412that is arranged at one side of the first lower grounding terminal411. The lower power terminal assembly42comprises a first lower power terminal421and a second lower power terminal422that is arranged at one side of the first lower power terminal421.

In addition, the upper transmission conductor assembly3further comprises a first upper differential signal terminal assembly33that is arranged between the first upper grounding terminal311and the first upper power terminal321, an upper signal terminal assembly34that is arranged between the first upper power terminal321and the second upper power terminal322, and a second upper differential signal terminal assembly35that is arranged between the second upper power terminal322and the second upper grounding terminal312. The lower transmission conductor assembly4further comprises a first lower differential signal terminal assembly43that is arranged between the first lower grounding terminal411and the first lower power terminal421, a lower signal terminal assembly44that is arranged between the first lower power terminal421and the second lower power terminal422, and a second lower differential signal terminal assembly45that is arranged between the second lower power terminal422and the second lower grounding terminal412.

It is appreciated from the above description that the present invention provides a connector that is a male connector, in which a sequence of an arrangement of the upper transmission conductor assembly3is the first upper grounding terminal311, the first upper differential signal terminal assembly33(2 pins), the first upper power terminal321, the upper signal terminal assembly34(4 pins), the second upper power terminal322, the second upper differential signal terminal assembly35(2 pins), and the second upper grounding terminal312; and a sequence of an arrangement of the lower transmission conductor assembly4is the first lower grounding terminal411, the first lower differential signal terminal assembly43(2 pins), the first lower power terminal421, the lower signal terminal assembly44(4 pins), the second lower power terminal422, the second lower differential signal terminal assembly45(2 pins), and the second lower grounding terminal412. Thus, the arrangement of terminals or pins of the present invention comply with the specification of USB Type C 3.1. Under this condition, the soldering sections5and the extension sections6have an optimum width value that is 0.4 mm and an optimum thickness value that is 0.2 mm. The contact sections7have an optimum width value that is 0.245 mm and an optimum thickness value that is 0.2 mm. With such an arrangement, the volume of the terminals can be maximized, in a limited way, so as not to increase noise interference and satisfy a user's need for supply of a large electrical current.