CN211088542U - Coaxial connector center terminal capable of preventing core wire scattering - Google Patents

Abstract

A central terminal of a coaxial connector for preventing core wires from being scattered belongs to the technical field of bent coaxial cable connectors and comprises a spring plate clamping end, a central conductor constraint end and a middle transition plate structure. The edge of one side edge of the constrained end of the central conductor of the semi-unfolding wing structure is of a convex step structure, and the corresponding part of the edge of the other side edge is of a concave step structure. The utility model discloses simple structure, and can ensure that the cable can not appear scattered in the connection in disorder phenomenon, make the riveting of cable more stable to coaxial cable connector's electrical stability has been ensured.

Description

Coaxial connector center terminal capable of preventing core wire scattering

The technical field is as follows:

the utility model relates to a prevent scattered indiscriminate coaxial connector central terminal of heart yearn, it belongs to the curved formula coaxial cable connector technical field who is used for high frequency signal transmission between module or the integrated circuit board.

Background art:

the bent coaxial cable connector is generally used between two independent units, and is now widely used in high-frequency signal transmission applications such as computer or communication equipment terminals, mainly to facilitate modularization, on-line testability or maintenance of each functional area.

In the prior art, in the bent coaxial cable connector adopting the riveting mode, because the central terminal only has one holding end, when a cable such as a seven-core copper wire is connected, the central conductor of the cable is not stably contacted with the central terminal, the core wires are scattered and the like. Especially when the connection location is at a predetermined position offset from the assumed center, this may result in a deviation of the characteristic impedance from the correct value, which in turn may lead to a reduction of the electrical performance, in particular the radio frequency parameters.

In addition, when the cable is pushed or pulled by external force, the connection between the central conductor of the cable and the central terminal of the coaxial connector is unstable, which results in unstable electrical performance (especially radio frequency parameters). On the contrary, if the requirement for the accuracy of the crimping connection position is too high, the requirement for the precision of an assembly jig or a tool is increased, and the product reject ratio may be increased, so that the cost is increased. The electrical connection performance is unstable.

Chinese patent No. 201730660046.0 discloses a "cable connector center terminal", which has only one clamping end connected with an insulator medium, and when the center terminal is pressed with a seven-core cable, the center conductor part is randomly laid on the center terminal, so that the firmness after pressing cannot be ensured, resulting in unstable connection, and finally causing unstable electrical connection performance, thereby affecting the overall service life of the product.

The utility model has the following contents:

an object of the utility model is to provide a simple structure has good pressfitting connection effect, guarantees electric stability and mechanical reliability's the scattered indiscriminate coaxial connector center terminal of heart yearn of preventing.

The purpose of the utility model is realized like this:

the coaxial connector central terminal capable of preventing the scattered core wires comprises an elastic sheet clamping end, a central conductor constraint end and a middle transition plate structure, and is characterized in that the central conductor constraint end is of a semi-unfolding wing structure, and the edges of two side edges of the semi-unfolding wing are provided with step structures which can be embedded into each other and are formed by a recess and a protrusion.

The edge of one side edge of the constrained end of the central conductor of the semi-unfolding wing structure is of a convex step structure, and the corresponding part of the edge of the other side edge is of a concave step structure.

The convex part is in a semicircular structure or an arc-shaped structure.

The concave-convex connection part of the concave-convex stepped structure is in arc transition.

The utility model discloses simple structure, and can ensure that the cable can not appear scattered in the connection in disorder phenomenon, make the riveting of cable more stable to coaxial cable connector's electrical stability has been ensured.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is a schematic structural diagram of an embodiment of the present invention

FIG. 3 is the schematic structural diagram of the present invention after being pressed with a cable

The specific implementation mode is as follows:

the present invention will be further described with reference to fig. 1, 2 and 3:

example 1, as shown in figure 1:

in this embodiment, the utility model discloses a about terminal 3 of the about structure of transition plate 1 in middle of shell fragment exposed core 2, center conductor, shell fragment exposed core 2 all the same with the center terminal structure among the prior art with middle transition plate structure 1.

In order to realize the utility model discloses a purpose increases the central conductor's of central terminal to seven core copper line dynamics of gripping and fastness, the about end 3 of central conductor half expand the wing structure for one the edge of two sides of half expansion wing be provided with the stair structure that can imbed each other and constitute by sunken 5 and arch 4. In this embodiment, the edge of one side of the constraining end 3 of the central conductor of the half-spread wing structure is a step structure with a protrusion 4 at one end, and the corresponding part of the edge of the other side is a step structure with a recess 5. When the central terminal and the central conductor 8 of the seven-core cable 7 are pressed together, as shown in fig. 3, the concave 5 and the convex 4 of the edges of the two sides of the half-unfolding wing are embedded to form a semi-closed cylindrical structure, and the seven-core cable is firmly held therein, so that the electrical stability of the connector is effectively ensured. In this embodiment, the concave-convex connection part of the concave-convex stepped structure is an arc-shaped transition 6, so that the processing is convenient. Stress concentration is not easily formed.

Example 2, as shown in fig. 2:

in this embodiment, the protrusion 4 has a semicircular structure or a circular arc-shaped structure.

The rest of this example is exactly the same as example 1.

Claims (3)

1. The coaxial connector central terminal capable of preventing the scattered core wires comprises an elastic sheet clamping end (2), a central conductor constraint end (3) and a middle transition plate structure (1), and is characterized in that the central conductor constraint end (3) is of a half-unfolding wing structure, and the edges of two side edges of the half-unfolding wing are provided with step structures which can be embedded into each other and are formed by a recess (5) and a protrusion (4).

2. The central terminal of coaxial connector for preventing core wire scattering as defined in claim 1, wherein the edge of one side of the restraining end (3) of the central conductor of the semi-spread wing structure is a step structure with a protrusion (4) at one end, and the corresponding portion of the edge of the other side is a step structure with a recess (5).

3. The core wire disorder-preventing center terminal of a coaxial connector as set forth in claim 1, wherein said projection (4) is partially formed in a semicircular shape or a circular arc shape.

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