CN215933998U - Bent pipe radio frequency connector - Google Patents

Abstract

The utility model discloses a bent pipe radio frequency connector which is simple in structure, simple and convenient to machine and assemble, low in cost and excellent in electrical performance, and comprises a shell (1), wherein a central needle (2) is coaxially arranged in the shell (1), the shell (1) and the central needle (2) are both of a straight structure, the bent pipe comprises a metal bent pipe (3), the metal bent pipe (3) comprises a straight line section and a bent section which are sequentially arranged, the bent section is fixedly connected with one end of the shell (1), a coaxial cable is arranged in the metal bent pipe (3), and the coaxial cable is connected with the central needle (2).

Description

Bent pipe radio frequency connector

Technical Field

The utility model relates to the field of radio frequency coaxial connectors, in particular to a bent pipe radio frequency connector.

Background

The radio frequency coaxial connector is a common microwave interconnection component, and is connected with a coaxial cable, a microstrip line or other radio frequency transmission lines to realize transmission line electrical connection, separation or different types of transmission line switching. Belongs to a mechatronic product and plays a role of a bridge. The method is widely applied to the fields of radar systems, satellite communication systems, microwave measurement and the like.

In millimeter wave test cable subassembly, because the right angle transition compensation effect of bending connector is unsatisfactory, and electric uniformity is relatively poor to influence the whole electrical property index of subassembly. The related art bent connector structure is shown in fig. 1, and has the following disadvantages: 1. in the structure, parts such as a bent needle, a shell and the like have bent angle or right angle transition, so that impedance mismatch is caused, and even if compensation measures are taken at impedance discontinuity positions, the electrical performance still cannot achieve the ideal effect; 2. the structure is complicated, the processing difficulty of parts is large, the cost is high, and the efficiency is low.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the elbow radio frequency connector which is simple in structure, simple and convenient to machine and assemble, low in cost and excellent in electrical performance.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the novel metal elbow comprises a housin, coaxial arrangement has central needle in the casing, the casing with central needle is straight formula structure, still includes the metal return bend, the metal return bend is including the straightway and the crooked section that set gradually, crooked section with the one end fixed connection of casing, be provided with coaxial cable in the metal return bend, coaxial cable with central needle is connected.

Further, the bending angle α of the bending section is 90 ± 2 °.

Further, the curved section is threadedly connected with the housing.

Further, the bending section is provided with an external thread, the shell is provided with an internal thread, and the bending section is inserted into the inner side of the shell in a threaded connection mode.

Further, the bending section is provided with an internal thread, the shell is provided with an external thread, and the bending section is sleeved on the outer side of the shell in threaded connection.

Further, the central needle is of a 2.92mm straight structure.

Further, the center pin is fixedly installed in the shell through a welding cup.

Further, a step surface is arranged in the shell, the center needle is provided with a step portion, and the step portion is in butt fit with the step surface.

Furthermore, a threaded sleeve is sleeved on the outer side of one end, far away from the metal bent pipe, of the shell.

Compared with the prior art, the shell and the center needle are both of a straight structure, the shell is connected by using the metal bent pipe as a tail pipe, the main body of the connector adopts a straight connector structure, and the scheme that the metal bent pipe is combined with the coaxial cable as a bent angle transition carrier is adopted, namely the 'bent' connector is changed into the 'straight' connector.

Furthermore, the metal bent pipe is connected with the shell through threads, the integrity is good, the stability of the connector is improved, and the assembly and disassembly are convenient.

Furthermore, the central needle is abutted with the shell through the step structure for positioning and assembling, reliable installation in place is guaranteed, the central needle is fixedly installed on the shell through the welding cup, reliable and stable assembly of the central needle and the shell is guaranteed, and reliability of the connector is guaranteed.

Furthermore, the shell can be connected with other equipment through the threaded sleeve, so that the installation and the disassembly are convenient, and the operation is simple and convenient.

Drawings

Fig. 1 is a schematic view of a related art bent connector;

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

wherein, 1 is the casing, 2 is central needle, 3 is the metal return bend, 4 is the swivel nut, 5 is the welding cup.

Detailed Description

The present invention will be further explained with reference to the drawings and specific examples in the specification, and it should be understood that the examples described are only a part of the examples of the present application, and not all examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the utility model provides a bent pipe radio frequency connector, and particularly relates to a bent pipe radio frequency connector shown in figure 2, which comprises a shell 1, wherein a central needle 2 is coaxially arranged in the shell 1, the shell 1 and the central needle 2 are both of a straight structure, the bent pipe radio frequency connector also comprises a metal bent pipe 3, the metal bent pipe 3 comprises a straight line section and a bent section which are sequentially arranged, the bent section is fixedly connected with one end of the shell 1, a coaxial cable is arranged in the metal bent pipe 3, and the coaxial cable is connected with the central needle 2.

The casing 1 and the center needle 2 of this embodiment are straight structure, utilize metal return bend 3 to connect casing 1 as the tail pipe, the main part of connector adopts straight connector structure, adopt metal return bend 3 to combine the scheme of coaxial cable as bent angle transition carrier, become "curved" connector in other words into "straight" connector, moreover, the steam generator is simple in structure, utilize metal return bend 3 to do the compensation optimization in impedance discontinuity, can be fine solve the relatively poor problem of voltage standing wave ratio, the scheme is ripe and effectual, electric property is far superior and high-efficient in curved connector, spare part simple structure, the processing degree of difficulty is little, and is with low costs, and assembly process is simple.

Preferably, the bending angle α of the bending section is 90 ± 2 °. Of course, the angle can be any other angle set according to needs to meet the requirements of different connector connection angles.

Preferably, bending segment and 1 threaded connection of casing, threaded connection, the wholeness is good, has improved the stability of connector, and the assembly and disassembly is convenient.

More preferably, the bending section is provided with an external thread, the housing 1 is provided with an internal thread, and the bending section is inserted into the housing 1 for threaded connection. Or the bending section is provided with an internal thread, the shell 1 is provided with an external thread, and the bending section is sleeved on the outer side of the shell 1 in threaded connection.

The central needle 2 of this embodiment is a 2.92mm straight structure, the housing 1 is a 2.92mm straight connector housing structure, the tail of the housing 1 is connected to the bent section of the metal bent tube 3, and the needle head of the central needle 2 is located in the head of the housing 1.

Preferably, the center pin 2 is fixedly installed in the housing 1 through the welding cup 5, so that the center pin 2 is reliably and stably assembled with the housing 1, and the reliability of the connector is ensured.

Preferably, a step surface is arranged in the shell 1, the central needle 2 is provided with a step part, the step part is in butt fit with the step surface, and reliable installation in place is guaranteed through butt positioning assembly of a step structure.

Preferably, the threaded sleeve 4 is sleeved outside one end of the shell 1, which is far away from the metal bent pipe 3, namely the threaded sleeve 4 is sleeved on the head of the shell 1, and other equipment can be connected through the threaded sleeve 4, so that the installation and the disassembly are convenient, and the operation is simple and convenient.

During assembly, the assembled central needle 2 is firstly installed from the tail part of the shell 1, the step structure is abutted and positioned, the welding cup 5 is installed at the corresponding position to fix the central needle 2, then the coaxial cable is penetrated in the metal bent pipe 3 and is reliably connected with the central needle 2, and then the tail part of the shell 1 is screwed with the bent part of the metal bent pipe 3, and the assembly is completed.

According to the utility model, the shell 1 and the central needle 2 form a conventional straight connector main body, the main body is connected with the metal bent pipe 3, the metal bent pipe 3 is combined with a coaxial cable to serve as a bent angle transition carrier, so that the performance is improved, and the straight connector has the performance of a straight connector although the geometric shape is a bent type, and has the characteristics of simplicity and high efficiency in assembly, excellent electrical performance and the like; the structure has good market demand and popularization and application prospect.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. The utility model provides an return bend radio frequency connector, its characterized in that, includes casing (1), coaxial arrangement has central needle (2) in casing (1), casing (1) with central needle (2) are straight structure, still include metal return bend (3), metal return bend (3) are including the straightway and the bend section that set gradually, the bend section with the one end fixed connection of casing (1), be provided with coaxial cable in metal return bend (3), coaxial cable with central needle (2) are connected.

2. The elbow rf connector of claim 1, wherein the bend angle α of the bend section is 90 ± 2 °.

3. A bent pipe radio frequency connector according to claim 1, characterized in that the bent section is screwed to the housing (1).

4. A bent pipe radio frequency connector according to claim 3, characterized in that the bent section is provided with an external thread, the housing (1) is provided with an internal thread, and the bent section is inserted into the housing (1) and screwed therein.

5. A bent pipe radio-frequency connector according to claim 3, wherein the bent section is provided with an internal thread, the housing (1) is provided with an external thread, and the bent section is sleeved on the outer side of the housing (1) for threaded connection.

6. An elbow rf connector according to claim 1, wherein the central needle (2) is of 2.92mm straight construction.

7. An elbow radio frequency connector according to claim 1, characterised in that the central needle (2) is fixedly mounted in the housing (1) by means of a solder cup (5).

8. A bent-tube radio-frequency connector according to claim 1, characterized in that a stepped surface is provided in the housing (1), and the central needle (2) has a stepped portion which is in abutting engagement with the stepped surface.

9. The elbow radio-frequency connector according to claim 1, wherein a threaded sleeve (4) is sleeved outside one end of the housing (1) far away from the metal elbow (3).

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