阅读说明：本技术 一种小型射频同轴接触件 (Small-size radio frequency coaxial contact ) 是由 符江鹏 王超群 杨盼盼 于 2020-05-30 设计创作，主要内容包括：一种小型射频同轴接触件,包括插针接触件、插孔接触件、插针内接触件、插针绝缘体、插针外接触件、插孔内接触件、插孔绝缘体、插孔外接触件,插针内接触件被插针绝缘体固定,安装在插针外接触件中,插孔内接触件被插孔绝缘体固定,安装在插孔外接触件中,当插针接触件和插孔接触件插合时,插针内接触件插入插孔内接触件中,插孔外接触件插入插针外接触件中,完成射频信号的传输。(A small radio frequency coaxial contact element comprises a pin contact element, a jack contact element, a pin inner contact element, a pin insulator, a pin outer contact element, a jack inner contact element, a jack insulator and a jack outer contact element, wherein the pin inner contact element is fixed by the pin insulator and is arranged in the pin outer contact element, the jack inner contact element is fixed by the jack insulator and is arranged in the jack outer contact element, when the pin contact element and the jack contact element are inserted, the pin inner contact element is inserted into the jack inner contact element, and the jack outer contact element is inserted into the pin outer contact element, so that the transmission of radio frequency signals is completed.)

1. A small radio frequency coaxial contact element comprises a pin contact element, a jack contact element, a pin inner contact element, a pin insulator, a pin outer contact element, a jack inner contact element, a jack insulator and a jack outer contact element, wherein the pin inner contact element is fixed by the pin insulator and is arranged in the pin outer contact element, the jack inner contact element is fixed by the jack insulator and is arranged in the jack outer contact element, when the pin contact element and the jack contact element are inserted, the pin inner contact element is inserted into the jack inner contact element, and the jack outer contact element is inserted into the pin outer contact element, so that the transmission of radio frequency signals is completed.

2. A compact rf coaxial contact according to claim 1, wherein: the inner contact piece and the outer contact piece of the contact pin are respectively provided with a taper structure, the contact pin has automatic alignment and positioning functions when being inserted and closed, the contact length is larger than 1.5 mm, the diameter phi is 0.5 mm, and 40GHz radio frequency signals can be transmitted.

3. A compact rf coaxial contact according to claim 1, wherein: the inner contact piece and the outer contact piece of the contact pin are rigid pieces, so that glass sintering of the inner contact piece and the outer contact piece of the contact pin can be realized, and the air sealing function is achieved.

4. A compact rf coaxial contact according to claim 1, wherein: the inner contact piece and the outer contact piece of the jack are elastic pieces, are respectively designed with a groove splitting structure and have certain contraction elasticity, wherein the contraction elasticity of the outer contact piece of the jack is larger than that of the inner contact piece of the jack.

5. A compact rf coaxial contact according to claim 1, wherein: the two end faces of the contact pin insulator are respectively provided with a groove and a step, and the contact pin insulator has an impedance compensation function when being matched with the inner contact piece and the outer contact piece of the contact pin, and is low in signal transmission loss.

6. A compact rf coaxial contact according to claim 1, wherein: two end faces of the jack insulator are respectively provided with a groove and a plurality of compensation holes, and the compensation holes are symmetrical about the circle center to ensure impedance matching in the signal transmission process.

7. A compact rf coaxial contact according to claim 1, wherein: the maximum outer circle diameter of the contact outside the contact pin and the jack is not more than phi 4.5 mm, the overall structure size is small, the connector can be used in a multi-core integrated connector, and the connector is convenient to lighten and miniaturize.

Technical Field

The invention relates to a small radio frequency coaxial contact.

Background

In a radio frequency signal transmission system, a radio frequency connector needs to be miniaturized, lightweight, integrated, and modularized while satisfying high frequency transmission, and therefore, a small radio frequency coaxial contact needs to be implanted in the radio frequency connector. At present, the existing No. 10 and No. 12 radio frequency coaxial contact elements can not meet the requirements of transmission frequency and structural size.

Disclosure of Invention

The invention aims to provide a small radio frequency coaxial contact which can meet the transmission requirements of high frequency, low loss, miniaturization, integration and modularization in a radio frequency transmission system.

The technical scheme adopted by the invention is as follows: a small radio frequency coaxial contact element comprises a pin contact element, a jack contact element, a pin inner contact element, a pin insulator, a pin outer contact element, a jack inner contact element, a jack insulator and a jack outer contact element, wherein the pin inner contact element is fixed by the pin insulator and is arranged in the pin outer contact element, the jack inner contact element is fixed by the jack insulator and is arranged in the jack outer contact element, when the pin contact element and the jack contact element are inserted, the pin inner contact element is inserted into the jack inner contact element, and the jack outer contact element is inserted into the pin outer contact element, so that the transmission of radio frequency signals is completed.

The inner contact piece and the outer contact piece of the contact pin of the radio frequency coaxial contact piece are respectively provided with a taper structure, the contact pin has automatic alignment and positioning functions when being inserted and closed, the contact length is larger than 1.5 mm, the diameter phi is 0.5 mm, and 40GHz radio frequency signals can be transmitted.

The inner contact piece and the outer contact piece of the contact pin of the radio frequency coaxial contact piece are rigid pieces, so that glass sintering of the inner contact piece and the outer contact piece of the contact pin can be realized, and the air sealing function is achieved.

The inner contact piece and the outer contact piece of the jack of the radio frequency coaxial contact piece are elastic pieces, split groove structures are respectively designed, and the split groove structures have certain contraction elasticity, wherein the contraction elasticity of the outer contact piece of the jack is larger than that of the inner contact piece of the jack.

Two end faces of a contact pin insulator of the radio frequency coaxial contact element are respectively provided with a groove and a step, and the radio frequency coaxial contact element has an impedance compensation function when being matched with the inner contact element and the outer contact element of the contact pin, and is low in signal transmission loss.

Two end faces of the jack insulator of the radio frequency coaxial contact element are respectively provided with a groove and a plurality of compensation holes, and the compensation holes are symmetrical about the circle center to ensure impedance matching in the signal transmission process.

The maximum outer circle diameter of the contact piece outside the contact pin and the jack of the radio frequency coaxial contact piece is not more than phi 4.5 mm, the overall structure size is small, the radio frequency coaxial contact piece can be used in a multi-core integrated connector, and the light weight and the miniaturization of the connector are facilitated.

The small radio frequency coaxial contact element has the advantages of small overall dimension, high transmission frequency, low loss, reliable connection, capability of glass sintering, air sealing function and suitability for light-weight small multi-core integrated connectors.

Drawings

FIG. 1 is a schematic full-sectional view of a pin contact and a socket contact according to the present invention

FIG. 2 is a schematic diagram of a three-dimensional model of a pin insulator and a socket insulator according to the present invention

FIG. 3 is a schematic diagram of a three-dimensional model of an inner contact member and an outer contact member of a jack according to the present invention

FIG. 4 is a three-dimensional model of the inner and outer contact members of the pin of the present invention

In the figure, 1, a pin contact part, 2, a jack contact part, 3, a pin inner contact part, 4, a pin insulator, 5, a pin outer contact part, 6, a jack inner contact part, 7, a jack insulator, 8, a jack outer contact part, 31, taper, 41, a groove, 42, a step, 51, a taper structure, 61, a split groove, 71, a groove structure, 72, a compensation hole and 81, a split groove structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be further described in the following with reference to the accompanying drawings in the embodiments of the present invention, which should not be construed as limiting the scope of the present invention, and those skilled in the art can make some insubstantial modifications and adjustments to the present invention based on the above-mentioned disclosure.

As shown in the attached drawings, a pin inner contact member (3) is fixed by a pin insulator (4) and is arranged in a pin outer contact member (5), a pin inner contact member (6) is fixed by a jack insulator (7) and is arranged in a jack outer contact member (8), the pin inner contact member (3) is designed with a taper (31), the pin outer contact member (5) is designed with a taper structure (51), the pin insulator (4) is designed with a groove (41) and a step (42), the jack insulator (7) is designed with a groove structure (71) and a plurality of compensation holes (72), the jack inner contact member (6) is designed with a split groove (61), the jack outer contact member (8) is designed with a split groove structure (81) which has certain shrinkage elasticity, when the pin contact member (1) and the jack contact member (2) are inserted, the pin inner contact member (3) is inserted into the jack inner contact member (6), the jack outer contact element (8) is inserted into the pin outer contact element (5) to complete the transmission of radio frequency signals, can transmit 40GHz radio frequency signals, can be sintered by glass, has the air sealing function, and can be suitable for a light-weight small-size multi-core integrated connector.