CN104134881B - Differential connector transport module and the differential connector using the module - Google Patents

Abstract

The invention relates to the field of electrical connectors, in particular to a differential connector transmission module and a differential connector using the module. The transmission module includes an insulator and a differential pair disposed in the insulator, each differential pair includes two signal transmission parts, and the electrical lengths of the two signal transmission parts belonging to the same differential pair are equal; in the differential connector transmission module of the present invention , because the electrical lengths of the two signal transmission parts of the same differential pair are equal, therefore, the time delay phenomenon that occurs when transmitting signals between the two signal transmission parts can be eliminated during use, and the two signal transmission parts of the differential signal pair are solved. Time delay problem between contacts.

Description

Differential connector transmission module and differential connector using the module

technical field

The invention relates to the field of electrical connectors, in particular to a differential connector transmission module and a differential connector using the module.

Background technique

Most of the differential connector transmission modules are composed of insulators and differential pairs covered in the insulators. In the current differential connector transmission modules, each contact of the differential signal pair is an integral structure formed by stamping. Due to the transmission There is often an included angle between the two ends of the module, so the contacts are all angular structures, that is, there is a bending part between the two ends, and the bending part makes the length of the two contacts belonging to the same differential signal pair different. etc., often the contacts located on the inner side are much shorter than the contacts located on the outer side, so that the two contacts of the same differential pair have a time delay when transmitting signals, which affects the transmission quality of the signal; in addition, the contacts of the same differential pair Crosstalk also occurs between two contacts and between two adjacent differential pairs. In order to avoid crosstalk, it is often necessary to arrange additional shielding contacts, shielding plates and other components between the two differential pairs. It complicates the structure of the differential connector transmission module, brings troubles to the production of differential connectors, reduces the production efficiency of differential connectors, and increases its production cost, but even this cannot avoid the same differential signal pair interaction between the two contacts.

Contents of the invention

The purpose of the present invention is to provide a differential connector transmission module to solve the problem of time delay between two contacts of a differential signal pair.

At the same time, the object of the present invention is to provide a differential connector using the above-mentioned transmission module.

In order to solve the above problems, the differential connector transmission module of the present invention adopts the following technical solutions: the differential connector transmission module includes an insulator and a differential pair disposed in the insulator, and each differential pair includes two signal transmission parts, belonging to the same differential The electrical lengths of the two signal transmission parts of the pair are equal, and each signal transmission part includes an inner conductor and an outer conductor.

The inner side of the two signal transmission elements of the same differential pair is provided with a curved winding structure, and the curved winding structure makes the geometric lengths of the two signal transmission elements of the same differential pair equal.

The signal transmission part includes a signal line and a plug terminal connected to the signal line. The signal lines of the signal transmission part of the same differential pair have the same geometrical length, and the curved winding structure is located on the corresponding signal line.

The signal line includes an outer conductor and an inner conductor, the inner conductor is connected to the plug terminal to form the inner conductor of the signal transmission part, and the insulator is also equipped with a shielding sheet connected to the outer conductor, and the outer conductor and the shielding sheet The outer conductor that constitutes the signal transmission part.

The plug-in end of the plug-in terminal is provided with a thin groove structure for matching with the adapter terminal.

The differential connector of the present invention adopts the following technical solutions: the differential connector includes a housing and more than two transmission modules assembled in the housing, the transmission modules include an insulator and at least a pair of signal transmission parts arranged in the insulator, and the same transmission Two adjacent signal transmission elements in the module or two signal transmission elements respectively located on two adjacent transmission modules form a differential pair, and the electrical lengths of the two signal transmission elements belonging to the same differential pair are equal.

The two signal transmission parts of the same differential pair are located in the same transmission module, and the inner side of the two signal transmission parts of the same differential pair is provided with a curved and far-reaching structure, which makes the two signal transmission parts of the same differential pair have the same geometric length.

The signal transmission part includes a signal line and a plug terminal connected to the signal line. The signal lines of the signal transmission part of the same differential pair have the same geometrical length, and the curved winding structure is located on the corresponding signal line.

The signal line includes an inner layer conductor and an outer layer conductor, the inner layer conductor is connected to the plug-in terminal to form an inner conductor of the signal transmission part, the insulator is also equipped with a shielding sheet connected to the outer layer conductor, the outer layer conductor and the shielding sheet Together they form the outer conductor of the signal transmission part.

The plug-in end of the plug-in terminal is provided with a thin groove structure for matching with the adapter terminal.

In the differential connector transmission module of the present invention, since the electrical lengths of the two signal transmission parts of the same differential pair are equal, the time delay that occurs between the two signal transmission parts during signal transmission can be eliminated during use phenomenon, which solves the time delay problem between the two contacts of the differential signal pair.

Furthermore, setting a curved winding structure on the inner side of the two signal transmission parts of the same differential pair can make the two signal transmission parts of the differential pair geometrically equal in length, thereby providing convenience for controlling the electrical length of the signal transmission parts; The said curved winding structure is set on the corresponding signal line for easy operation and implementation; the coaxial cable is used as the signal line, and the existence of the shielding sheet can avoid mutual interference between any two signal transmission parts; the fine groove structure can Realize multi-point contact between plug terminal and adapter terminal.

Description of drawings

Fig. 1 is a schematic structural diagram of Embodiment 1 of a differential connector transmission module;

FIG. 2 is a schematic diagram of the arrangement of signal lines of the differential pair in FIG. 1;

Fig. 3 is a sectional view of Embodiment 1 of the differential connector transmission module;

Fig. 4 is a schematic structural diagram of the plug terminal in Fig. 1;

Fig. 5 is a schematic structural view of the plug connector in Fig. 1;

6 is a schematic diagram of the arrangement of signal lines of differential pairs in Embodiment 2 of the differential connector transmission module;

7 is a schematic diagram of the arrangement of signal lines of differential pairs in Embodiment 3 of the differential connector transmission module;

8 is a schematic diagram of the arrangement of signal lines of differential pairs in Embodiment 4 of the differential connector transmission module;

9 is a schematic diagram of the arrangement of signal lines of differential pairs in Embodiment 5 of the differential connector transmission module;

Fig. 10 is a cross-sectional view of Embodiment 6 of the differential connector transmission module;

Fig. 11 is a cross-sectional view of Embodiment 7 of the differential connector transmission module;

12 is a cross-sectional view of Embodiment 8 of the differential connector transmission module;

13 is a cross-sectional view of Embodiment 9 of the differential connector transmission module;

14 is a cross-sectional view of Embodiment 10 of the differential connector transmission module;

15 is a cross-sectional view of Embodiment 11 of the differential connector transmission module;

Fig. 16 is a schematic structural diagram of the plug-in terminal in Embodiment 12 of the differential connector transmission module;

Fig. 17 is a schematic structural diagram of the plug-in terminal in Embodiment 13 of the differential connector transmission module;

Fig. 18 is a schematic structural diagram of the plug-in terminal in Embodiment 14 of the differential connector transmission module;

Fig. 19 is a schematic structural diagram of the plug-in terminal in Embodiment 15 of the differential connector transmission module;

Fig. 20 is a schematic structural diagram of the plug-in terminal in Embodiment 16 of the differential connector transmission module;

Fig. 21 is a schematic structural diagram of the plug-in terminal in Embodiment 17 of the differential connector transmission module;

Fig. 22 is a schematic structural diagram of the plug terminal in Embodiment 18 of the differential connector transmission module;

Fig. 23 is a schematic structural diagram of the plug terminal in Embodiment 19 of the differential connector transmission module;

Fig. 24 is a schematic structural diagram of an embodiment of a differential connector.

detailed description

Embodiment 1 of the differential connector transmission module, as shown in Figures 1-5, includes an insulator 51 and a differential pair disposed in the insulator 51. In this embodiment, the insulator 51 is a plate-shaped and integrated structure, and the differential pair has Four pairs and embedded in the insulator 51, each differential pair includes two signal transmission parts, the two signal transmission parts are arranged one inside and one outside, and the electrical lengths of the two signal transmission parts belonging to the same differential pair are equal, in this implementation In this example, the electrical lengths of the two signal transmission parts of the same differential pair are equalized in this way: the inner side of the two signal transmission parts of the same differential pair is provided with a curved winding structure, which makes the same differential The geometric lengths of the two signal transmission parts are equal, and then the electrical lengths of the two signal transmission parts can be made equal by making the two signal transmission parts the same material and the same cross section. In this embodiment, the signal transmission part includes a signal line 52 and a plug terminal 53 connected to the signal line 52. The geometric length and cross-sectional area of the signal line 52 are equal, and the specifications of the two plug terminals belonging to the same differential pair are also the same. Similarly, the above-mentioned curved winding structure is located on the inner signal line, and the two signal lines are located in the same plane. The curved winding structure is bent and protruded inwardly. The plug-in terminal 53 is connected to form the inner conductor of the signal transmission part. The inner conductor is used to transmit signals, and the section of the inner layer conductor is circular. The insulator 51 is also provided with a plug-in terminal at the plug-in end of the transmission module. 54. In this embodiment, the plug-in terminal adopts the form of split snap-fit, which is equipped with a shielding plate 55, and the shielding plate 55 electrically isolates two adjacent differential pairs from each other and is connected with the corresponding coaxial cable The outer conductors of the coaxial cable are connected together, and the outer conductor of the coaxial cable is connected with the shielding plate to form the outer conductor of the signal transmission part. In this embodiment, the section of the outer conductor is circular; in this embodiment, the plug The terminal 53 adopts a pin with a rectangular cross-section. The plug-in end of the plug-in terminal 53 is also provided with a thin groove structure for matching with an adapter terminal, and the thin-slot structure extends along the transverse direction of the plug-in terminal.

Embodiment 2 of the differential connector transmission module, as shown in FIG. 6 , differs between this embodiment and Embodiment 1 of the differential connector transmission module only in that the differential pair in this embodiment is located on the inner signal line The curved surrounding structure forms a protruding structure that protrudes outward, that is, it protrudes toward the signal line located on the outside.

Embodiment 3 of the differential connector transmission module, as shown in FIG. 7 , differs between this embodiment and Embodiment 1 of the differential connector transmission module only in that the differential pair in this embodiment is located on the inner signal line The bending around the remote structure forms an upwardly protruding convex structure, and the two signal lines of the same differential pair are not completely coplanar.

Embodiment 4 of the differential connector transmission module, as shown in FIG. 8 , differs between this embodiment and Embodiment 1 of the differential connector transmission module only in that the differential pair in this embodiment is located on the inner signal line The bending around the remote structure forms a convex structure protruding downward, and the two signal lines of the same differential pair are not completely coplanar.

Embodiment 5 of the differential connector transmission module, as shown in FIG. 9 , differs between this embodiment and Embodiment 1 of the differential connector transmission module only in that the inner one of the two signal lines of the differential pair is not provided with the described The second is to shorten the length. In order to ensure that there is no time delay between the two signal transmission parts, the material of the inner signal line is different from that of the outer signal line. The dielectric constant of the inner signal line is greater than that of the outer signal line. The dielectric constant of the signal line.

Embodiment 6 of the differential connector transmission module, as shown in FIG. 10 , differs between this embodiment and Embodiment 1 of the differential connector transmission module only in that in this embodiment, the section of the outer conductor of the coaxial cable forms a closed A rectangular ring with a rectangular cross-section of the inner conductor.

Embodiment 7 of the differential connector transmission module, as shown in Figure 11, the difference between this embodiment and Embodiment 1 of the differential connector transmission module is that in this embodiment, the section of the inner conductor of the coaxial cable is elliptical shape.

Embodiment 8 of the differential connector transmission module, as shown in FIG. 12 , differs from Embodiment 6 of the differential connector transmission module only in that the section of the inner conductor of the coaxial cable is elliptical.

Embodiment 9 of the differential connector transmission module, as shown in Figure 13, differs from Embodiment 1 of the differential connector transmission module only in that the section of the outer conductor of the coaxial cable forms an elliptical ring, and the inner layer The cross section of the conductor is oval.

Embodiment 10 of the differential connector transmission module, as shown in FIG. 14 , the difference between this embodiment and Embodiment 1 of the differential connector transmission module is only that: this embodiment mixes the above-mentioned embodiments 6 and 9. The two signal lines described above.

Embodiment 11 of the differential connector transmission module, as shown in FIG. 15 , differs between this embodiment and Embodiment 1 of the differential connector transmission module only in that the above-mentioned embodiment 1 and embodiments 6-9 are mixed in this embodiment The five signal lines described in .

Embodiment 12 of the differential connector transmission module, as shown in FIG. 16 , differs from Embodiment 1 of the differential connector transmission module only in that the section of the plug-in terminal is rectangular.

Embodiment 13 of the differential connector transmission module, as shown in FIG. 17 , differs from Embodiment 1 of the differential connector transmission module only in that the section of the plug terminal is oval.

Embodiment 14 of the differential connector transmission module, as shown in FIG. 18 , differs from Embodiment 1 of the differential connector transmission module only in that the plug terminal adopts an integrated structure.

Embodiment 15 of the differential connector transmission module, as shown in FIG. 19 , differs from Embodiment 14 of the differential connector transmission module only in that the section of the plug-in terminal is rectangular.

Embodiment 16 of the differential connector transmission module, as shown in FIG. 20 , differs from Embodiment 14 of the differential connector transmission module only in that the section of the plug terminal is oval.

Embodiment 17 of the differential connector transmission module, as shown in Figure 21, differs from Embodiment 1 of the differential connector transmission module only in that the section of the plug-in terminal is rectangular, and the thin groove at the plug-in end The structure extends longitudinally.

Embodiment 18 of the differential connector transmission module, as shown in Figure 22, differs from Embodiment 1 of the differential connector transmission module only in that the section of the plug terminal is elliptical, and the thin The groove structure is divided into longitudinally extending thin grooves and transversely extending thin grooves, and the transversely extending thin grooves intersect with the longitudinally extending thin grooves to form a grid structure.

Embodiment 19 of the differential connector transmission module, as shown in FIG. 23 , differs from Embodiment 1 of the differential connector transmission module only in that the section of the plug terminal is crescent-shaped.

Embodiment 1 of the differential connector, as shown in FIG. 24 , includes a housing 101 and a transmission module 102 assembled in the housing. The structure of the transmission module 102 is the same as that of Embodiment 1 of the above-mentioned differential connector transmission module. I won't repeat them here.

In other embodiments of the differential connector, the number of transmission modules can be more than two, and each transmission module can have more than two signal transmission parts. Two adjacent signal transmission elements on the two transmission modules form a differential pair.

Claims (4)

1. differential connector transport module, including insulator and the differential pair in insulator, each differential pair include Two signal Transmission Parts, it is characterised in that it is equal to belong to the electrical length of two signal Transmission Parts of same differential pair, each signal Transmission Part includes inner wire and outer conductor, positioned at one of inner side provided with curved in two signal Transmission Parts of same differential pair Circumnutate remote structure, and the signal Transmission Part includes signal wire and the inserting terminal being connected with the signal wire, bends knot of going the long way round Structure make it that the geometrical length of the signal wire of two signal Transmission Parts of same differential pair is equal, and the bending goes the long way round structure positioned at corresponding On the signal wire of signal Transmission Part, the signal wire includes outer contact and inner conductor, and inner conductor is connected with inserting terminal The inner wire of signal Transmission Part is formed, is additionally provided with grafting termination on insulator at the inserted terminal of transport module, in grafting termination The barricade being connected with outer contact is equipped with, outer contact forms the outer conductor of signal Transmission Part together with barricade.

2. differential connector transport module according to claim 1, it is characterised in that the inserted terminal of inserting terminal is provided with For the stria structure with being adapted to terminal cooperation.

3. differential connector, including housing and assembling two or more transport module in the housing, transport module includes insulation Body and at least one pair of signal Transmission Part in insulator, it is characterised in that two in same transport module adjacent Signal Transmission Part forms differential pair, and it is equal to belong to the electrical length of two signal Transmission Parts of same differential pair, each signal transmission Part includes inner wire and outer conductor, one in two signal Transmission Parts of same differential pair positioned at inner side be provided with bend around Remote structure, the signal Transmission Part include signal wire and the inserting terminal being connected with the signal wire, and bending structure of going the long way round makes It is equal to obtain the geometrical length of the signal wire of two signal Transmission Parts of same differential pair, the structure of going the long way round that bends is located at corresponding signal On the signal wire of Transmission Part, the signal wire includes inner conductor and outer contact, and inner conductor connects and composes with inserting terminal The inner wire of signal Transmission Part, grafting termination is additionally provided with the inserted terminal of transport module on insulator, grafting is assembled in termination There is the barricade being connected with outer contact, outer contact forms the outer conductor of signal Transmission Part together with barricade.

4. differential connector according to claim 3, it is characterised in that the inserted terminal of inserting terminal, which is provided with, to be used for fitting The stria structure that matching terminal coordinates.