A kind of connector of differential signal transmissionTechnical field
The present invention relates to technical field of electric connectors, especially a kind of connector of differential signal transmission.
Background technology
Along with the fast development of electronic technology, the speed of information exchange of communications service is more and more faster, and the amount of information of required transmission is also increasing, and transmission rate is also more and more higher simultaneously, in the signals transmission caused therefrom to complete sex chromosome mosaicism more and more serious.Because differential signal transmission has stable transmission performance, powerful antijamming capability and higher transmission rate, receive the concern of increasing Electronics Engineer.Differential signal transmission is that transmission line that is parallel by a pair, coupling transmits, and one be signal transmission, and another root is its complementary signal of transmission, and two paths of signals amplitude is equal and phase place contrary, final output be this comparison value to differential signal.The contact of the connector of the differential signal transmission that prior art is commonly used mainly contains two kinds of arrangement modes: one is rectangular sheet spring class part, adopts the mode that rectangular sheet spring arranges in length and breadth; It two is the mode adopting twin-concentric class arrangements of conductors.Problems existing is that rectangular sheet spring class part mostly is technical grade product, and environmental resistance is poor, cannot meet and require higher occasion to the completing property of Signal transmissions; And the mode of twin-concentric class arrangements of conductors, shared by its coaxial configuration, sectional area is comparatively large, cannot realize small size, high density, the demand organizing the connector of contact more.
Summary of the invention
The object of the invention is for the deficiencies in the prior art and the connector of a kind of differential signal transmission provided, the present invention adopts and arrange contact by group on the pedestal of connector, make from the often group contact in square profile, obtain the differential pair contact of two pairs of full symmetrics, there is stable signal transmission, transmission performance is good, antijamming capability is strong and transmission rate is high advantage.
The concrete technical scheme realizing the object of the invention is:
A kind of connector of differential signal transmission, its feature comprises plug, socket, difference cable and casting glue, described plug is by plug body, Plug base, contact pin contacting piece and hood component composition, described Plug base is at least provided with two groups of contact pin contacting piece holes, and often organize six holes, wherein four is the differential pair hole in square profile, all the other two for being arranged at the ground hole outside square, the both sides of hood component are provided with quick locking structure, afterbody is provided with wire clamp component, described contact pin contacting piece is located in the contact pin contacting piece hole of Plug base, Plug base is located in plug body, plug body is located in hood component,
Described socket is made up of jack housing, socket base, jack contact and rubber blanket, socket base is provided with the jack contact piece bores corresponding with the contact pin contacting piece hole of Plug base, the both sides of jack housing are provided with lock bolt structure, described jack contact is located in the jack contact piece bores of socket base, and rubber blanket, socket base are located in jack housing successively;
Described casting glue be located at respectively in plug body with the junction of Plug base and jack housing in the junction of socket base; Described difference cable is connected with the tail end of contact pin contacting piece and jack contact respectively;
Described plug and socket grafting, and contact pin contacting piece and jack contact grafting, on plug, on the quick locking structure of hood component and socket, the lock bolt structure of jack housing is sealed;
Described difference cable is provided with core and the screen of a pair Parallel coupled.
The present invention adopts and arrange contact by group on the pedestal of connector, make from the often group contact in square profile, obtain the differential pair contact of two pairs of full symmetrics, there is stable signal transmission, transmission performance is good, antijamming capability is strong and transmission rate is high advantage.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of structure of the present invention;
Fig. 2 is the structural representation that plug is connected with difference cable;
Fig. 3 is the structural representation that socket is connected with difference cable;
Fig. 4 is the arrangement schematic diagram by the contact pin contacting piece hole of group setting on Plug base.
Embodiment
Consult Fig. 1, Fig. 2, Fig. 3, Fig. 4, the present invention includes plug 1, socket 2, difference cable 3 and casting glue 4, described plug 1 is by plug body 11, Plug base 12, contact pin contacting piece 13 and hood component 16 form, described Plug base 12 is at least provided with two groups of contact pin contacting piece holes, and often organize six holes, wherein four is the differential pair hole 121 in square profile, all the other two for being arranged at the ground hole 122 outside square, the both sides of hood component 16 are provided with quick locking structure 161, afterbody is provided with wire clamp component, described contact pin contacting piece 13 is located in the contact pin contacting piece hole of Plug base 12, Plug base 12 is located in plug body 11, plug body 11 is located in hood component 16,
Described socket 2 is made up of jack housing 21, socket base 24, jack contact 23 and rubber blanket 22, socket base 24 is provided with the jack contact piece bores corresponding with the contact pin contacting piece hole of Plug base 12, the both sides of jack housing 21 are provided with lock bolt structure 211, described jack contact 23 is located in the jack contact piece bores of socket base 24, and rubber blanket 22, socket base 24 are located in jack housing 21 successively;
Described casting glue 4 be located at respectively in plug body 11 with the junction of Plug base 12 and jack housing 21 in the junction of socket base 24; Described difference cable 3 is connected with the tail end of contact pin contacting piece 13 and jack contact 23 respectively;
Described plug 1 and socket 2 grafting, and contact pin contacting piece 13 and jack contact 23 grafting, on plug 1, the quick locking structure 161 of hood component 16 is sealed with the lock bolt structure 211 of jack housing 21 on socket 2; Described difference cable 3 is provided with core and the screen of a pair Parallel coupled.
The embodiment of the present invention
Below for the wiring of plug and difference cable, further illustrate as follows to application of the present invention:
Consult Fig. 1, Fig. 2, Fig. 4, because the contact pin contacting piece hole on Plug base 12 of the present invention is arranged by group, and often organize six holes, wherein four is the differential pair hole 121 in square profile, all the other two for being arranged at the ground hole 122 of a square side, and difference cable 3 is provided with core and the screen of a pair Parallel coupled; During use, configure two pairs of difference cables 3 often organizing contact pin contacting piece hole, wherein, contact pin contacting piece 13 in the differential pair hole 121 that a pair core of a pair difference cable 3 distributes with square two diagonal angles is respectively connected, and screen is connected with the contact pin contacting piece 13 in the ground hole of outside square 122; In addition, another is connected with the contact pin contacting piece 13 in the differential pair hole 121 that distributes, all the other two diagonal angles of square respectively to a pair core of difference cable 3, screen is connected with the contact pin contacting piece 13 in another ground hole 122, and difference cable 3 is fixed through the wire clamp of hood component 16 afterbody;
After difference cable 3 of the present invention connects by above-mentioned arrangement architecture, the core of a pair difference cable 3 pair and another interference signal right to the core of difference cable 3 are cancelled out each other, being communicated with simultaneously by screen and the contact pin contacting piece 13 in ground hole 122, make the impact of external disturbance on differential signal drop to minimum, improve the antijamming capability of differential signal.
Four contact point positions of two pairs of contact pin contacting pieces 13 or two pairs of jack contacts 23 that the present invention often organizes contact pin contacting piece hole or jack contact piece bores form square structure, and often pair of contact pin contacting piece 13 or jack contact 23 are all by the arrangement of foursquare diagonal angle; For ease of modularization making, contact pin contacting piece 13 in two pairs of contact pin contacting pieces 13 of the present invention or jack contact 23 and ground hole 122 is divided into a modular unit, modular unit is placed in Plug base 12 or socket base 24, realize modularized design of the present invention, significantly improve the arranging density of contact, thus realize the modularization, integrated and miniaturized of connector.