Summary of the invention
In order to reduce electromagnetic interference, the invention provides the low high-frequency data plug of a kind of electromagnetic interference and electrical harnesses cable.
Object of the present invention realizes by following technical proposal: a kind of high-frequency data plug, comprise plastic casing and be arranged on the multiple electrical terminals in described plastic casing, described multiple electrical terminals is spaced and be arranged into row, each described electrical terminals is L shape sheet metal, comprises longitudinal pin and the horizontal contact pin being connected on described longitudinal pin lower end; Adjacent two electrical terminals are mutually 180 degree and arrange turningly thus described longitudinal pin is staggered arrangement.
Further, described plastic casing front end is provided with a rows of sockets, and described slot penetrates into lower surface from the upper surface of described plastic casing, and each L shape sheet metal up inserts in a slot with described longitudinal pin respectively.
Further, described high-frequency data plug also comprises terminal block, and the lower surface of described plastic casing is fixed on described terminal block.
Further, described terminal block offers jack respectively corresponding on the position of each slot, each described longitudinal pin is each passed through described slot and is inserted in the jack of corresponding terminal block.
Further, be provided with multiple binding post on the surface at the described terminal block of described plastic casing outside, each described longitudinal pin is passed described jack and is connected with binding post described in one of them by wire.
Further, described electrical terminals also comprises longitudinal minor face, and described longitudinal pin is connected to described horizontal contact pin one end, and described longitudinal minor face is connected to the other end of described horizontal contact pin.
The present invention also protects a kind of electrical harnesses cable; comprise high-frequency data plug and cable; described high-frequency data plug is above-mentioned high-frequency data plug, and the many data lines in described cable are directly or indirectly connected on multiple electrical terminals of described high-frequency data plug respectively.
Further, described high-frequency data plug also comprises terminal block and is arranged on the binding post on described terminal block surface, and described plastic casing is also arranged on described terminal block.
Further, described electrical terminals to be inserted on described terminal block and to be connected with binding post described in one of them by wire, and each described electrical harnesses cable is directly connected on binding post described in one of them.
Compared with prior art, because electrical terminals adopts the design of L shape sheet metal, substantially reduce sheet metal surface area, thus namely the projected area reduced between adjacent two metal sheets reduces capacity effect, and longitudinal pin is staggered reduce further this capacity effect, be conducive to reducing electromagnetic interference.Preferably, the mode that terminal block and binding post make circuit external, has isolated electromagnetic interference further.Therefore, adopt the electrical harnesses cable of this high-frequency data plug, there is good data transmission performance.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
The present invention protects a kind of high-frequency data plug and has the electrical harnesses cable of this high-frequency data plug.Electrical harnesses cable is herein variously need to utilize high-frequency data plug to be connected line to transmit data, such as netting twine, telephone wire etc. with interface.
As shown in Figure 1 and Figure 2, the high-frequency data plug of preferred embodiment comprises plastic casing 1, electrical terminals 2, terminal block 3, binding post 4, shell 6 and elastic pressuring plate 7.
Wherein, plastic casing 1 is used for placing electrical terminals 2, and it is cuboid, and leading portion offers a rows of sockets 10, and this slot 10 passes to lower surface from the upper surface of plastic casing 1.In the present embodiment, slot 10 has eight, be identical rectangular through-hole, and cross section is long and narrow rectangle.
Electrical terminals 2 flakiness shape, supine through long and narrow rectangular slot and being connected with the terminal block 3 that plastic casing 1 upper surface is installed from the following table of slot 10.
Wherein, the structure of each electrical terminals 2 as shown in Figure 2, is the L shape sheet metal that thickness is less, is used for being electrically connected with interface.L shape sheet metal comprises the horizontal contact pin 22 that longitudinal pin 21 and one end are connected to longitudinal pin 21 lower end.L shape sheet metal also can comprise the longitudinal minor face 23 being connected to horizontal contact pin 22 other end, from forming down 7 fonts.In order to strengthen the structural soundness of electrical terminals 2, as shown in Figure 2, be provided with leg-of-mutton reinforcement inside the corner that horizontal contact pin 22 and longitudinal pin 21 combine, thus prevent relative torsion between longitudinal pin 21 and horizontal contact pin 22.
Compared with traditional sheet metal, electrical terminals 2 of the present invention no longer adopts the Metal Flake of rectangular area, and adopts the L shape of linear, and the relative area between adjacent two electrical terminals 2 is obviously reduced, thus reduce capacity effect, effectively reduce electromagnetic interference.
In the present embodiment, as shown in Figure 3, corresponding electrical terminals 2 has multiple, and Cheng Yilie arrangement, adjacent two electrical terminals 2 are put at interval in parallel to each other.In order to reduce the parallel projection area of adjacent two electrical terminals 2, further reduction electromagnetic interference, as shown in Figure 3, in adjacent two electrical terminals, one of them electrical terminals 2 with the perpendicular bisector of the bottom of its horizontal contact pin 22 for rotating shaft turns over turnback translation spacing distance again, namely overlap with another electrical terminals 2, longitudinal pin 21 of adjacent two electrical terminals 2 is arranged left and right successively with staggering, projected area is only the area portions of horizontal contact pin 22 in opposite directions, relative to each electrical terminals 2 all in array parallel interval be in line, projected area between its adjacent two electrical terminals 2 reduces 1/2.Correspondingly, electromagnetic interference will obviously reduce.
Certainly, with bottom perpendicular bisector for axle, as long as with the straight line being parallel to electrical terminals sheet metal surface for axle, longitudinal pin 21 of adjacent two electrical terminals 2 must be staggered but not projects relatively and form capacity effect.
Adopt this structure, parallel relative projected area between adjacent two electrical terminals 2 is reduced further, significantly reduces capacity effect, thus reduce electromagnetic interference.
As shown in Figure 1, such arrangement multiple, in the present embodiment, be that eight electrical terminals 2 insert in eight slots 10 of plastic casing 1 successively from bottom to up, and each longitudinal pin 21 is upward through slot 10 and is connected on terminal block 3 in corresponding each jack 30 offered.
In the lower surface of terminal block 3, plastic casing 10 is arranged in wherein a part of lower surface, on another part lower surface, is fitted with multiple binding post 4, each longitudinal pin 21 is connected with one of them binding post 4 by wire through jack 30 again, and binding post 4 is electrically connected with electrical terminals 2.
Adopt wiring board 3 and binding post 4, the many of cable can be directly connected on the binding post 4 of conduction with holding wire, and directly not be connected with electrical terminals 2, and holding wire is isolated in outside plastic casing 1, electromagnetic interference can be reduced further, improve data transmission performance.
Further, high-frequency data plug also comprises the elastic pressuring plate 7 of shell 6 that plastics make and shell 6 upper end.Wherein, elastic pressuring plate 7 is buckled in outside the entirety of plastic casing 1 and terminal block 3 formation, and exposes at slot 10 front surface of front end surface by electrical terminals 2, to carry out grafting.Elastic pressuring plate 7 is used for high-frequency data plug to be flexibly fixed in interface.
The present invention also protects the electrical harnesses cable with above-mentioned high-frequency data plug; it cable comprising above-mentioned high-frequency data plug and be connected with high-frequency data plug end; many transmission lines in cable stretch out from cable and damper ends and are directly or indirectly electrically connected one by one with electrical terminals respectively, thus can carry out transfer of data.
Such as, high-frequency data plug only has L shape or 7 font electrical terminals 2 to the mode of direct connection, does not have terminal block 3 and binding post 4, then every root transmission line connects with longitudinal pin 21 of corresponding electrical terminals 2.The mode of indirect connection such as, as above-described embodiment, every root transmission line is connected with a binding post 4 respectively, and each binding post 4 has been electrically connected with a longitudinal pin 21 by wire, or terminal block 3 is directly a metallic plate, longitudinal pin 21 is plugged on metallic plate, is namely electrically connected with the binding post 4 of conduction.
Adopt the present invention, because electrical terminals 2 adopts the design of L shape sheet metal, substantially reduce sheet metal surface area, thus namely the projected area reduced between adjacent two metal sheets reduces capacity effect, and longitudinal pin is staggered reduce further this capacity effect, be conducive to reducing electromagnetic interference.Preferably, the mode that terminal block and binding post make circuit external, has isolated electromagnetic interference further.Therefore, adopt the electrical harnesses cable of this high-frequency data plug, there is good data transmission performance.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as high-frequency data plug, cable, electrical harnesses cable, electrical terminals herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.