High-speed coaxial terminal structure

Abstract

The utility model discloses a high-speed coaxial terminal structure, which comprises a signal terminal and a grounding terminal, the grounding terminal is sleeved on the surface of the signal terminal, one end of the grounding terminal is circumferentially provided with three groups of grounding upper contact pieces, and the other end of the grounding terminal is provided with three groups of grounding lower contact pieces; one end of the signal terminal is circumferentially provided with three groups of signal upper contact pieces, the other end of the signal terminal is provided with a group of signal lower contact pieces, and each signal lower contact piece comprises an adjusting piece and a contact part. The grounding terminal arranged in the regular hexagon mode adopts a wrapping type structure for the signal terminal, the electromagnetic shielding effect on the signal terminal can be improved, signal channels can be arranged and designed in a high-density mode, the impedance of the signal terminal can be adjusted through an adjusting piece structure arranged on a signal lower contact piece, the signal integrity is guaranteed, and meanwhile the signal transmission efficiency is improved. And signal reflection is reduced, so that signal transmission quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to connector terminal technical field especially relates to high -speed coaxial terminal structure. BACKGROUND

[0002] High -speed coaxial terminal is used for transmitting high -speed signal connector, is widely used in communication, broadcast, military, aerospace etc. These terminals are designed for providing low loss, low reflection and high reliability signal transmission for connector in high frequency band (such as microwave frequency band).

[0003] With the continuous improvement of the requirement of data transmission speed of electronic equipment, the contact density and signal frequency of connector also increase, and the connector terminal structure does not satisfy the specific characteristic impedance, and the signal will be reflected at the connector, reduces signal quality, and causes energy loss in the transmission process of signal, produces the condition of signal attenuation. UTILITARY MODEL CONTENTS

[0004] The utility model discloses to the connector terminal structure cannot reach corresponding electric characteristic and the characteristic impedance problem in prior art, and the following technical scheme is proposed:

[0005] High -speed coaxial terminal structure, comprising: signal terminal and ground terminal, the ground terminal sleeve is connected in signal terminal surface, the ground terminal one end is provided with three groups of ground upper contact piece, and the ground terminal other end is provided with three groups of ground lower contact piece.

[0006] The signal terminal one end is provided with three groups of signal upper contact piece, and the signal terminal other end is provided with a group of signal lower contact piece, and the signal lower contact piece includes adjusting piece and contact part.

[0007] As the preferred technical scheme, it further includes medium piece, the medium piece sleeve is connected in signal terminal surface, and the medium piece is inserted in the ground terminal.

[0008] As the preferred technical scheme, the ground terminal middle part is provided with bending fixed piece, and the medium piece surface is provided with corresponding fixed groove.

[0009] As the preferred technical scheme, the ground lower contact piece and signal lower contact piece are all elastic structure, and the ground lower contact piece and signal lower contact piece are elastically deformed with the butt joint of PCB.

[0010] The utility model has the advantages of:

[0011] 1. The grounding terminal with a regular hexagonal shape adopts an encasing structure for the signal terminal, which can improve the electromagnetic shielding effect of the signal terminal while allowing for high-density arrangement of the signal channel. In addition, the adjustment plate structure set on the lower contact piece of the signal terminal can adjust the impedance of the signal terminal, ensuring signal integrity while reducing signal reflection, thereby ensuring signal transmission quality.

[0012] 2. The signal terminals and grounding terminals in the coaxial terminal are perpendicularly connected to the PCB board. The lower grounding contact piece and the lower signal contact piece undergo elastic deformation as they connect to the PCB board, which can achieve reliable signal transmission under the desired electrical performance, thereby realizing high-speed signal transmission between the cable assembly and the PCB board.

[0013] 3. The signal terminals and ground terminals are connected as a single unit via a dielectric component, preventing movement during mating with the PCB board. This enhances the connector's mechanical stability and avoids poor contact. The dielectric component uses specific materials and structures to achieve both structural functionality and electrical performance requirements. Attached Figure Description

[0014] Figure 1 The diagram shown is a schematic representation of the overall structure of the embodiment;

[0015] Figure 2 The diagram shown is an exploded view of an embodiment;

[0016] Figure 3 The image shown is a front view of the signal terminals in the embodiment;

[0017] Figure 4 The diagram shown illustrates the connection between the terminal structure and the PCB board in this embodiment.

[0018] In the diagram: 10, signal terminal; 11, upper signal contact piece; 12, lower signal contact piece; 121, adjustment piece; 122, contact part; 20, grounding terminal; 21, bending and fixing piece; 23, upper grounding contact piece; 24, lower grounding contact piece; 30, dielectric element; 31, fixing groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings.

[0020] Example

[0021] Figures 1-4The high-speed coaxial terminal structure comprises a signal terminal 10 and a ground terminal 20, the ground terminal 20 is arranged in a regular hexagon, the ground terminal 20 is sleeved on the surface of the signal terminal 10, three groups of upper ground contact pieces 23 are arranged on one end of the ground terminal 20 in a circumferential direction, and three groups of lower ground contact pieces 24 are arranged on the other end of the ground terminal 20.

[0022] Three groups of upper signal contact pieces 11 are arranged on one end of the signal terminal 10 in a circumferential direction, and one group of lower signal contact pieces 12 is arranged on the other end of the signal terminal 10, the lower signal contact pieces 12 comprise an adjusting piece 121 and a contact part 122.

[0023] The ground terminal 20 arranged in a regular hexagon adopts a cladding structure to the signal terminal 10, which can improve the electromagnetic shielding effect of the signal terminal 10, and can also arrange the signal channel at a high density, and the adjusting piece 121 arranged on the lower signal contact pieces 12 can adjust the impedance of the signal terminal 10, which can ensure the integrity of the signal and reduce signal reflection, thereby ensuring the quality of signal transmission.

[0024] Figures 1-2 The medium piece 30 is integrally formed with the signal terminal 10 by an integral forming method, the medium piece 30 is sleeved on the surface of the signal terminal 10, and the medium piece 30 is inserted into the ground terminal 20. The medium piece adopts a specific material and structure to realize structural function and meet the electrical performance requirements.

[0025] The ground terminal 20 is provided with a bending fixing piece 21 in the middle, and the surface of the medium piece 30 is provided with a corresponding fixing groove 31.

[0026] The signal terminal 10 and the ground terminal 20 are connected into a whole through the medium piece 30, which can avoid movement when being connected with the PCB, thereby enhancing the mechanical stability of the connector and avoiding poor contact.

[0027] Figures 1-4 In the embodiment, the lower ground contact pieces 24 and the lower signal contact pieces 12 are elastic structures, and the lower ground contact pieces 24 and the lower signal contact pieces 12 are elastically deformed when being connected with the PCB.

[0028] The signal terminal 10 and the ground terminal 20 in the coaxial terminal are vertically connected with the PCB, the lower ground contact pieces 24 and the lower signal contact pieces 12 are elastically deformed when being connected with the PCB, which can realize reliable signal transmission under the expected electrical performance, thereby realizing high-speed signal transmission between the cable assembly and the PCB.

[0029] Working principle: the coaxial terminals are arranged according to a certain configuration scheme in the connector and are fixedly installed with the base at the corresponding positions to form the connector, the ground upper contact piece 2323 of the ground terminal 20 and the signal upper contact piece 11 of the signal terminal 10 realize butt joint with the coaxial cable in the form of multi-point contact, the ground lower contact piece 24 of the ground terminal 20 and the signal lower contact piece 12 of the signal terminal 10 realize butt joint with the PAD of the PCB in the state of elastic deformation, the signal terminal 10 and the ground terminal 20 in the coaxial terminal realize perpendicular butt joint with the PCB when connecting with the PCB, reliable signal transmission under the expected electrical performance can be realized, and thus high-speed signal transmission between the cable assembly and the PCB is realized.

[0030] The above examples are only used to illustrate the technical scheme of the utility model, and not limit it.

Claims

1. High-speed coaxial terminal structure, including: The signal terminal (10) and the ground terminal (20) are sleeved on the surface of the signal terminal (10). The ground terminal (20) is hexagonal in shape. Three sets of upper ground contact pieces (23) are arranged circumferentially at one end of the ground terminal (20), and three sets of lower ground contact pieces (24) are arranged at the other end of the ground terminal (20). The signal terminal (10) has three sets of upper signal contact pieces (11) arranged circumferentially at one end, and a set of lower signal contact pieces (12) arranged at the other end. The lower signal contact piece (12) includes an adjustment piece (121) and a contact part (122).

2. The high-speed coaxial terminal structure according to claim 1, characterized in that, It also includes a medium (30) which is sleeved on the surface of the signal terminal (10) and inserted into the ground terminal (20).

3. The high-speed coaxial terminal structure according to claim 2, characterized in that, A bending and fixing piece (21) is provided in the middle of the grounding terminal (20), and a corresponding fixing groove (31) is provided on the surface of the dielectric component (30).

4. The high-speed coaxial terminal structure according to claim 1, characterized in that, The lower grounding contact piece (24) and the lower signal contact piece (12) are both elastic structures, and the lower grounding contact piece (24) and the lower signal contact piece (12) undergo elastic deformation as they are connected to the PCB board.

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