CN207765727U - A seamless jack inner conductor, coaxial connector and converter - Google Patents

Abstract

The utility model discloses a kind of gapless jack inner conductor, coaxial connector and converters.Wherein gapless jack inner conductor includes conductor pipe sleeve, pipe sleeve connector, spring contacts and elastic compression part.Conductor pipe sleeve is hollow body, and front end nozzle is equipped with the first ring convex to convex, and tail end nozzle is connected with pipe sleeve connector.There is on the inside of first ring convex between conductor pipe sleeve inner body wall the first inner circle annular conical surface.Spring contacts and elastic compression part are set in the tube body of conductor pipe sleeve.Spring contacts are made of contact root and contact claw.The spring detent structure that contact claw is made of several annular claw valves.Elastic compression part is set between contact root and the interconnecting piece of pipe sleeve connector end.The second ring convex are equipped on the inside of the annular claw valve end of spring detent structure, outside is equipped with outer circle annular conical surface.Outer circle annular conical surface matches with the first inner circle annular conical surface so that outer circle annular conical surface is close to the first inner circle annular conical surface.

Description

A seamless jack inner conductor, coaxial connector and converter

technical field

The utility model relates to a coaxial connector, in particular to a radio frequency coaxial connector.

Background technique

Precision coaxial connectors used in radio frequency and microwave transmission technologies usually include components such as inner conductors, insulating supports and outer conductors. Among them, the inner conductor can be divided into a pin inner conductor and a socket inner conductor according to the interface structure. The coaxial connector with pin inner conductor is a coaxial male connector or male connector, and the coaxial connector with jack inner conductor is a coaxial female connector or female connector. When the pin inner conductor of the coaxial male connector is inserted into the jack inner conductor of the coaxial female connector, the electrical connection of the two coaxial connectors is realized. Existing N-type, 3.5mm, 2.4mm and other coaxial female connectors use slotted jack inner conductors. The slotting destroys the continuity of the transmission surface, resulting in a decline in the quality of microwave signal transmission and deterioration of indicators, which cannot meet the precision test Require.

Contents of the invention

The problem to be solved by the utility model: the existing coaxial female connector adopts a grooved jack inner conductor, and the groove destroys the continuity of the transmission surface, resulting in a decrease in the quality of microwave signal transmission.

For solving the problems referred to above, the scheme that the utility model adopts is as follows:

A seamless socket inner conductor according to the utility model includes a conductor sleeve, a sleeve connector, a spring contact and an elastic compression piece; The first ring is convex, and the nozzle at the tail end is connected to the connector of the sleeve; there is a first inner circular tapered surface between the inner side of the first ring protrusion and the inner wall of the conductor sleeve body; the spring contact and the elastic compression piece are arranged on the conductor sleeve Inside the tube; the spring contact is composed of the contact root and the contact claw; the contact claw is installed on the contact root; the contact claw is a hollow tube with several grooves in the axial direction, so that the contact The claw part forms a spring claw structure composed of several annular claw petals; the outer diameter of the claw part of the contact part matches the inner diameter of the conductor sleeve; the claw mouth of the spring claw structure faces the front end; the elastic compression part is arranged at the root of the contact part Between the connecting part with the end of the sleeve connector, the elastic compression part provides a forward axial thrust to the spring claw structure; the inner side of the annular claw petal end of the spring claw structure is provided with a second ring protrusion, and the outer An outer circular conical surface is provided; the outer circular conical surface is matched with the first inner circular conical surface, so that the outer circular conical surface is close to the first inner circular conical surface.

Further, according to a seamless socket inner conductor of the present invention, a second inner circular tapered surface is provided between the second ring protrusion on the inner side of the annular claw petal end of the spring claw structure and the end surface.

Further, the end of the pipe socket connector is provided with a connecting part; the connecting part is a cylinder with a diameter smaller than the body of the pipe socket connector; the diameter of the connecting part matches the inner diameter of the conductor pipe sleeve, so that the connection of the end of the pipe socket connector The end can be inserted into the tail end nozzle of the conductor sleeve to realize the connection with the conductor sleeve.

Further, according to a seamless socket inner conductor of the present invention, there are 3 to 8 grooves.

Further, according to a seamless socket inner conductor of the present invention, the elastic compression member is an axial spring.

Furthermore, according to a seamless socket inner conductor of the present invention, the inner diameter of the first ring protrusion is the same as the inner diameter of the second ring protrusion.

Furthermore, according to a seamless socket inner conductor of the present invention, the included angle between the first inner circular conical surface and the axial direction is 45 degrees.

According to a coaxial connector of the present invention, the coaxial connector is a coaxial female connector, and the center of the end of the coaxial female connector is axially provided with the above-mentioned seamless jack inner conductor.

A converter according to the present invention includes a converter housing; two connecting cavities are respectively provided at both ends of the converter housing; the two connecting cavities are respectively installed with the above-mentioned seamless jack inner conductors; The two seamless socket inner conductors in the two connection chambers are oppositely arranged, and share a sleeve connector; the two seamless socket inner conductors are connected through a shared sleeve connector; the sleeve connector is fixed by insulation parts installed in the converter housing.

The technical effect of the utility model is as follows: the utility model adopts a seamless inner conductor structure, and an elastic contact piece is installed in the conductor hole in the jack, which not only ensures the integrity of the inner conductor surface, but also satisfies the good electrical connection of the pin jack .

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the conductor in the seamless socket of the embodiment of the present invention.

Fig. 2 and Fig. 3 are enlarged views of the cooperation between the nozzle at the front end of the conductor sleeve and the annular claw of the spring contact according to the embodiment of the present invention. Wherein, Fig. 2 is the state when the inner conductor of the pin is inserted into the inner conductor of the seamless jack, and Fig. 3 is the state when the inner conductor of the pin is not inserted into the inner conductor of the seamless jack.

Fig. 4 is a schematic diagram of the disassembled structure of the conductor sleeve and the sleeve connector.

Fig. 5 is an end view of the spring contact of the embodiment of the present invention.

Fig. 6 is a schematic diagram of the disassembled structure of the male head and the female head of the embodiment of the coaxial connector of the present invention.

Fig. 7 is a schematic diagram of the connection between the male head and the female head of the embodiment of the coaxial connector of the present invention.

Fig. 8 is a schematic structural diagram of an embodiment of the converter of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Example 1

This embodiment is a seamless jack inner conductor, as shown in FIG. 1 , including a conductor sleeve 410 , a sleeve connector 420 , a spring contact 430 and an elastic compression member 440 . The conductor sleeve 410 is a hollow tube made of conductive metal or conductive alloy. The nozzle at the front end is provided with a first ring protrusion 411 protruding inward, and the nozzle at the tail end is connected with the connector 420 of the sleeve. As shown in FIG. 1 and FIG. 4 , the end of the sleeve connector 420 is provided with a connecting portion 421 , and the root is connected to the core of the coaxial cable, and is made of conductive metal or conductive alloy. The connection part 421 is a cylinder. The diameter of the connection portion 421 is smaller than the diameter of the sleeve connector 420 body, and the diameter of the connection portion 421 matches the inner diameter of the conductor sleeve 410, so that the connection portion 421 at the end of the sleeve connector 420 can be inserted into the conductor sleeve 410 The nozzle at the tail end, and the body of the sleeve connector 420 is stuck outside the conductor sleeve 410 , so as to realize the connection between the sleeve connector 420 and the conductor sleeve 410 .

The spring contact piece 430 and the elastic compression piece 440 are arranged in the tube body of the conductor sleeve 410 and are clamped between the connecting portion 421 at the end of the sleeve connector 420 and the first ring protrusion 411 . As shown in FIG. 1 , FIG. 2 , and FIG. 3 , there is a first inner circular tapered surface 412 between the inner side of the first ring protrusion 411 and the inner wall of the conductor sleeve 410 body. The included angle between the first inner circular conical surface 412 and the axial direction is 40-55 degrees, preferably 45 degrees. The spring contact 430 is a hollow tube composed of a contact root 432 and a contact claw 431 , and is made of conductive metal or conductive alloy. The contact claw 431 is installed on the contact root 432 , and its tube wall thickness is smaller than that of the contact root 432 , and its outer diameter is the same as that of the contact root 432 . The claw part 431 of the contact part is provided with a plurality of grooves 433 along the axial direction, so that the claw part 431 of the contact part forms a spring claw structure composed of several ring-shaped claw petals. The number of the groove body 433 and the annular claws is 3-8, preferably 4. As shown in FIG. 5 , the four grooves 433 are arranged in a cross shape, and divide the tube body of the claw portion 431 of the contact member into four annular claw petals of the same size. The outer diameter of the contact claw 431 matches the inner diameter of the conductor sleeve 410 . Specifically, the outer diameter of the contact claw 431 is slightly smaller than the inner diameter of the conductor sleeve 410 , so that the spring contact 430 can be inserted into the conductor sleeve 410 . The claw mouth of the spring claw structure of the contact claw portion 431 faces the front end. The elastic compression piece 440 is disposed between the root portion 432 of the contact piece and the connection portion 421 at the end of the sleeve connection piece 420 , so that the elastic compression piece 440 provides a forward axial thrust to the spring claw structure or the spring contact piece 430 . A second ring protrusion 434 is provided on the inner side of the annular claw petal end of the spring claw structure of the claw part 431 of the contact piece, and an outer circular tapered surface 435 is arranged on the outside. The inner diameter of the second ring protrusion 434 is the same as the inner diameter of the first ring protrusion 411 . A second inner circular tapered surface 436 is disposed between the second ring protrusion 434 and the end surface. The outer circular conical surface 435 is matched with the first inner circular conical surface 412 , so that the outer circular conical surface 435 is pressed against the first inner circular conical surface 412 under the push of the elastic compression member 440 .

The working principle of the seamless jack inner conductor in this embodiment is as follows: As shown in Fig. 2 and Fig. 3, the thrust of the elastic compression member 440 is indicated by the arrow F. When the inner conductor of the pin is not inserted into the seamless socket inner conductor of this embodiment, the thrust of the elastic compression member 440 passes through the outer ring cone surface 435 at the end of the claw portion 431 of the contact piece and the first inner ring cone surface. The slopes between the surfaces 412 slide against each other. As shown in FIG. 3 , the ends of the annular claw petals of the claw portion 431 of the contact piece protrude inward, refer to the comparison line L. When the pin inner conductor is inserted into the seamless jack inner conductor of this embodiment, the pin inner conductor is inserted into the claw mouth of the contact claw part 431 under the guidance of the second inner circular tapered surface 436, and the pin inner conductor The diameter matches the inner diameter of the first ring protrusion 411. At this time, the end of the annular claw petal of the contact member claw 431 is stretched by the inner conductor of the pin, as shown in Figure 2, but the axial thrust of the elastic compression member 440 passes through the outer circle The slope between the ring cone surface 435 and the first inner ring cone surface 412 acts to make the second ring protrusion 434 at the end of the ring claw petal of the claw part 431 of the contact piece tightly embrace the cylindrical surface of the inner conductor of the pin. On the other hand, due to the existence of the second ring protrusion 434, the contact portion between the inner conductor of the pin and the inner conductor of the socket is located between the second ring protrusion 434 and the cylindrical surface of the inner conductor of the pin, while other parts of the inner conductor of the pin then leave it empty. Through the tight contact between the outer circular tapered surface 435 on the outside of the second ring protrusion 434 and the first inner circular tapered surface 412 , the inner conductor of the pin is connected to the conductor sleeve 410 . That is to say, in this embodiment, the contact portion between the inner conductor of the pin and the conductor sleeve 410 is located at the front end of the conductor sleeve 410 .

It should be noted that, in this embodiment, the elastic compression member 440 is an axial compression spring. Those skilled in the art understand that the elastic compression member 440 can be replaced by other elastic components, such as leaf springs, bellows springs, elastic rubber, etc.

In addition, in this embodiment, an interference fit connection is adopted between the sleeve connector 420 and the conductor sleeve 410. Those skilled in the art understand that welding can also be used between the sleeve connector 420 and the conductor sleeve 410. or threaded connections.

Example 2

This embodiment is an application of the seamless socket inner conductor in Embodiment 1 to a coaxial connector. The coaxial connector is a coaxial female connector, which is used for the coaxial male connector to realize electrical connection, as shown in Fig. 6 and Fig. 7 . The left side of FIG. 6 is the coaxial female connector 200 of this embodiment, and the right side is the coaxial male connector 100 matching the coaxial female connector 200 of this embodiment. A socket inner conductor 400 is arranged axially at the end of the coaxial female connector 200 . The socket inner conductor 400 is the seamless socket inner conductor in the first embodiment. A pin inner conductor 101 is arranged axially at the end of the coaxial male connector 100 . A connecting screw sleeve 300 is mounted on the coaxial male connector 100 . The connecting screw sleeve 300 has a regular hexagonal structure, and a circular sleeve hole 301 is arranged inside. The connecting threaded sleeve 300 is stuck on the coaxial male connector 100 through the threaded sleeve snap ring 102, so that a connecting cavity is formed between the circular sleeve hole 301 of the connecting threaded sleeve 300 and the end of the coaxial male connector 100, and makes The connecting screw sleeve 300 can rotate around the axis relative to the coaxial male connector 100 . The pin inner conductor 101 is located in the connecting cavity. The connecting screw sleeve 300 is provided with an internal thread 302 . In this embodiment, the coaxial female connector 200 is provided with an external thread 202 matching the internal thread 302 . The end of the coaxial female connector 200 in this embodiment can be inserted into the connecting cavity of the coaxial male connector 100 . When the end of the coaxial female connector 20 of this embodiment is inserted into the connection cavity of the coaxial male connector 100, the pin inner conductor 101 on the coaxial male connector 100 is inserted into the socket inner conductor 400, and passes through The engagement between the external thread 202 on the coaxial female connector 200 of this embodiment and the internal thread 302 of the connecting nut 300 enables the coaxial male connector 100 to be fastened to the coaxial female connector 200 of this embodiment.

Example 3

The seamless jack inner conductor in Embodiment 1 can be applied to various coaxial connectors, not limited to radio frequency coaxial connectors. Fig. 8 is the application of the seamless jack inner conductor in Embodiment 1 in another coaxial connector. This kind of coaxial connector is also called a converter. The converter, shown in FIG. 8 , includes a converter housing 847 . Two connecting cavities 848 are respectively provided at both ends of the converter housing 847 . The two connecting cavities 848 are respectively installed with the seamless jack inner conductors in Embodiment 1. The two seamless socket inner conductors in the two connection cavities 848 are arranged oppositely, and share a socket connector 420 . The two seamless socket inner conductors are connected by a common socket connector 420 . The socket connector 420 is installed in the converter housing 847 through the insulating fixing member 845 . The roots of the conductor sleeves 410 of the two seamless socket inner conductors are isolated from the converter housing 847 by insulating fillers 846 .

Claims (9)

1. Conductor in a kind of seamless jack, is characterized in that, comprises conductor sleeve (410), sleeve connector (420), spring contact piece (430) and elastic compression piece (440); Conductor sleeve ( 410) is a hollow pipe body, the front nozzle is provided with a first ring protrusion (411) protruding inward, and the tail end nozzle is connected with the sleeve connector (420); the inner side of the first ring protrusion (411) is connected to the conductor sleeve (410) There is a first inner circular cone surface (412) between the inner wall of the body; the spring contact (430) and the elastic compression member (440) are arranged in the tube body of the conductor sleeve (410); the spring contact (430) It is composed of the contact root (432) and the contact claw (431); the contact claw (431) is installed on the contact root (432); the contact claw (431) has several grooves along the axial direction The hollow body of the body (433), so that the contact claw (431) forms a spring claw structure composed of several annular claw petals; the outer diameter of the contact claw (431) matches the inner diameter of the conductor sleeve (410) The jaws of the spring claw structure are towards the front end; the elastic compression part (440) is arranged between the contact part root (432) and the connection part (421) at the end of the pipe sleeve connector (420), so that the elastic compression part ( 440) provide forward axial thrust to the spring claw structure; the inner side of the annular claw petal end of the spring claw structure is provided with a second ring protrusion (434), and the outer side is provided with an outer circular cone surface (435); The circular cone surface (435) is matched with the first inner circular cone surface (412), so that the outer circular cone surface (435) is close to the first inner circular cone surface (412). 2. The seamless receptacle inner conductor according to claim 1, characterized in that, a second inner circle is provided between the second ring protrusion (434) on the inner side of the annular claw petal end of the spring claw structure and the end surface Ring cone (436). 3. The seamless jack inner conductor according to claim 1, characterized in that, the end of the sleeve connector (420) is provided with a connection portion (421); the connection portion (421) is smaller in diameter than the sleeve connection The cylinder of the part (420) body; the diameter of the connection part (421) matches the inner diameter of the conductor sleeve (410), so that the connection part (421) at the end of the sleeve connector (420) can be inserted into the conductor sleeve ( 410) to realize the connection with the conductor sleeve (410). 4. The seamless jack inner conductor according to claim 1, characterized in that there are 3 to 8 grooves (433). 5. The seamless socket inner conductor according to claim 1, characterized in that, the elastic compression member (440) is an axial spring. 6. The seamless socket inner conductor according to claim 1, characterized in that, the inner diameter of the first ring protrusion (411) is the same as the inner diameter of the second ring protrusion (434). 7. The seamless socket inner conductor according to claim 1, characterized in that the angle between the first inner circular conical surface (412) and the axial direction is 45 degrees. 8. A coaxial connector, the coaxial connector is a coaxial female connector, characterized in that, the center of the end of the coaxial female connector is axially arranged as described in any one of claims 1 to 7. The seamless jack inner conductor described above. 9. A converter, comprising a converter housing (847); two connecting cavities (848) are respectively provided at both ends of the converter housing (847); it is characterized in that the two connecting cavities (848) are respectively The seamless jack inner conductor as described in any one of claims 1 to 7 is installed; the two seamless jack inner conductors in the two connecting cavities (848) are arranged oppositely, and share a sleeve connector (420); the two seamless socket inner conductors are connected through a common sleeve connector (420); the sleeve connector (420) is installed in the converter housing (847) through an insulating fixture (845).