110 GHz cable connection radio frequency connector

Abstract

The utility model relates to a 110GHz cable connection radio frequency connector, which comprises a screw sleeve, an inner conductor structure and a shell, the other end of the shell is provided with a nut, the nut is provided with a third lining, the nut is provided with a horizontal through hole, the inner conductor structure comprises a rod body, a first insulator and a second insulator, the rod body is provided with a groove for installing the first insulator, and the second insulator is provided with a groove for installing the second insulator. The utility model has the advantages that the rod body is provided with the groove for installing the first insulator, so that a fixing form of a clamping structure is formed between the first insulator and the rod body, the inner conductor structure is ensured not to fall off when subjected to related axial force, and in addition, the second insulator is arranged, so that the inner conductor structure is prevented from falling off, and the service life of the inner conductor structure is prolonged. As the first insulator and the second insulator are respectively positioned at the two ends of the first bushing, the eccentricity of the rod body can be effectively prevented, meanwhile, a supporting effect is achieved in the radial direction, the coaxiality and the mechanical strength of a product are improved, and the process assembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to a 110GHz cable-connecting radio frequency connector. Background Art

[0002] At present, the commonly used RF connectors are generally used at frequencies below 65GHz. When the frequency is between DC and 110GHz, in order to obtain low transmission loss and low voltage standing wave ratio, the requirements for the connector's structural design, dimensional accuracy, material processing and assembly process are very high.

[0003] As a key structural component in 110GHz connectors, the insulation support directly affects the performance indicators of the connector. In existing 110GHz RF connectors, the insulation support adopts a mixed medium form of dielectric punching or a four-spoke star shape. These two insulation support structures have poor mechanical strength, high requirements for dimensional accuracy and surface roughness, are very easy to deform during assembly, and the process is very difficult, which has certain limitations on the performance of the connector. In addition, the size of the cable connected to the tail of the 110GHz RF connector is also very small, and the welding process requirements are extremely high. If the welding is poor, it will bury hidden dangers for subsequent testing and application, resulting in increased contact resistance and insertion loss of the cable assembly, reduced cable pull-out force, and direct scrapping in severe cases.

[0004] The Chinese patent CN105048153A is named 110GHz RF connector, which consists of an inner conductor, an insulating support, and an outer conductor. The insulating support is small in size and high in precision, the process is difficult, and the cost is extremely high. In a strong vibration environment, the coaxiality, mechanical strength and electrical performance indicators of the product will be affected to a certain extent.

[0005] The article "Development of 110GHz RF Coaxial Connector" (Electromechanical Components Issue 4, August 2015) introduces an integrated structure design of inner conductor and insulating support, which is composed of inner conductor, insulating support and outer conductor. It is molded using precision molds. The thinnest part of the insulating support is 0.05mm, which is easy to deform. If there are products of different specifications, the processing cost is extremely high. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that the existing 110GHz RF connector has a small insulation support size, which is easy to affect the coaxiality of the product in a strong vibration environment. A 110GHz cable RF connector is proposed, which uses a first insulator and a second insulator to radially support the rod body, effectively ensuring the coaxiality of the entire rod body, thereby improving the mechanical strength of the entire connector.

[0007] In order to solve the above technical problems, the utility model is achieved through the following technical solutions: a 110GHz cable RF connector, comprising a screw sleeve, an inner conductor structure and an outer shell, the screw sleeve is arranged at one end of the outer shell, a first bushing for mounting the inner conductor structure and a second bushing for fixing the inner conductor structure are arranged in the outer shell, a nut is arranged at the other end of the outer shell, a third bushing abutting against the second bushing is arranged on the nut, a horizontal through hole for the cable to pass through is arranged on the nut, the inner conductor structure comprises a rod body, a first insulator and a second insulator, the rod body is provided with a groove for mounting the first insulator, the second insulator is sleeved on the rod body, and the first insulator and the second insulator are respectively located at both ends of the first bushing.

[0008] Preferably, the first insulator is provided with an opening.

[0009] Preferably, a gap is provided between the rod body and the third bushing.

[0010] Preferably, an outer side wall of the nut is provided with an external thread, and the other end of the shell is provided with a threaded hole matching the external thread.

[0011] Preferably, a sealing ring is provided on the housing.

[0012] Preferably, a snap ring is provided between the shell and the screw sleeve.

[0013] Preferably, an annular groove for mounting a snap ring is provided on the housing.

[0014] To sum up, the advantages of the utility model are as follows: the inner conductor structure is arranged into a structure of a rod body, a first insulator and a second insulator; since a groove for installing the first insulator is provided on the rod body, a clamping structure can be formed between the first insulator and the rod body to fix the structure, thereby ensuring that the inner conductor structure will not fall off when subjected to relevant axial forces; in addition, by arranging the second insulator, since the first insulator and the second insulator are respectively located at the two ends of the first bushing, the eccentricity of the rod body can be effectively prevented, and at the same time, a supporting role is played in the radial direction, thereby improving the coaxiality and mechanical strength of the product and reducing the difficulty of process assembly; finally, by arranging a third bushing on the nut to counteract the second bushing, the second bushing relies on the force of the third bushing to not only fix the inner conductor structure in the first bushing, but also fix the first bushing in the outer shell, thereby effectively simplifying the overall assembly process and improving the reliability of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] Figure 1 The utility model is a schematic structural diagram of a 110 GHz cable-connected radio frequency connector.

[0017] Reference numerals:

[0018] 1 screw sleeve, 2 inner conductor structure, 21 rod body, 22 first insulator, 23 second insulator, 24 groove, 25 gap, 3 shell, 31 first bushing, 32 second bushing, 33 annular groove, 4 nut, 41 third bushing, 42 horizontal through hole, 5 sealing ring, 6 snap ring. DETAILED DESCRIPTION

[0019] like Figure 1 As shown, a 110 GHz cable RF connector comprises a screw sleeve 1, an inner conductor structure 2 and a shell 3, wherein the screw sleeve 1 is arranged at one end of the shell 3, and a first bushing 31 for mounting the inner conductor structure 2 and a second bushing 32 for fixing the inner conductor structure 2 are arranged in the shell 3, and a nut 4 is arranged at the other end of the shell 3, and a third bushing 41 abutting against the second bushing 32 is arranged on the nut 4, and a horizontal through hole 42 for the cable to pass through is arranged on the nut 4, when in use, the cable passes through the horizontal through hole 42 and is connected to the inner conductor structure 2, and the inner conductor structure 2 comprises a rod body 21, a first insulator 22 and a second insulator 23, and a groove 24 for mounting the first insulator 22 is arranged on the rod body 21, and the second insulator 23 is sleeved on the rod body 21, and the first insulator 22 and the second insulator 23 are respectively located at two ends of the first bushing 31.

[0020] The inner conductor structure 2 is configured to be a structure of a rod body 21, a first insulator 22 and a second insulator 23. Since a groove 24 for installing the first insulator 22 is provided on the rod body 21, a clamping structure can be formed between the first insulator 22 and the rod body 21 to ensure that the inner conductor structure 2 will not fall off when subjected to relevant axial forces. In addition, by providing the second insulator 23, since the first insulator 22 and the second insulator 23 are respectively located at the two ends of the first bushing 31, the eccentricity of the rod body 21 can be effectively prevented, and at the same time, a supporting role is played in the radial direction, thereby improving the coaxiality and mechanical strength of the product and reducing the difficulty of process assembly. Finally, by providing a third bushing 41 on the nut 4 to counteract the second bushing 32, the second bushing 32 relies on the force of the third bushing 41 to not only fix the inner conductor structure 2 in the first bushing 31, but also fix the first bushing 31 in the outer shell 3, thereby effectively simplifying the overall assembly process and improving the reliability of installation.

[0021] The first insulator 22 is provided with an opening. The setting of the opening not only facilitates the installation of the first insulator 22 in the groove 24, but also ensures the coaxiality after assembly, so that the overall performance is stable and controllable. A gap 25 is provided between the rod body 21 and the third bushing 41. The setting of the gap 25 enables the entire 110GHz RF connector to have the function of electrical performance compensation. When the cable is assembled to form a cable assembly, once the electrical performance is poor, the nut 4 can be removed and the third bushing 41 can be withdrawn, and the cable welding end face can be trimmed to adjust the compensation, so as to achieve the purpose of improving the electrical performance of the cable assembly and reduce the poor electrical performance caused by poor cable welding. The outer wall of the nut 4 is provided with an external thread, and the other end of the shell 3 is provided with a threaded hole matching the external thread, so as to facilitate the installation and disassembly of the nut 4. The shell 3 is provided with a sealing ring 5, which can achieve the sealing performance between the shell 3 and the screw sleeve 1.

[0022] A snap ring 6 is provided between the shell 3 and the screw sleeve 1. The provision of the snap ring 6 can prevent the screw sleeve 1 from falling off the shell 3 and can enable the screw sleeve 1 to rotate flexibly. An annular groove 33 for installing the snap ring 6 is provided on the shell 3, which is conducive to the installation and fixation of the snap ring 6. During installation, the snap ring 6 is placed in the annular groove 33, and then the screw sleeve 1 is pressed onto the snap ring 6 and connected to the shell 3.

[0023] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art can make various changes and modifications based on the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined by the claims attached to the present invention.

Claims

1. A 110 GHz cable RF connector, characterized in that: It includes a screw sleeve, an inner conductor structure and an outer shell, wherein the screw sleeve is arranged at one end of the outer shell, a first bushing for mounting the inner conductor structure and a second bushing for fixing the inner conductor structure are arranged in the outer shell, a nut is arranged at the other end of the outer shell, a third bushing abutting against the second bushing is arranged on the nut, a horizontal through hole for the cable to pass through is arranged on the nut, the inner conductor structure includes a rod body, a first insulator and a second insulator, a groove for mounting the first insulator is arranged on the rod body, the second insulator is sleeved on the rod body, and the first insulator and the second insulator are respectively located at two ends of the first bushing.

2. A 110 GHz cable RF connector according to claim 1, characterized in that: The first insulator is provided with an opening.

3. The 110 GHz cable RF connector according to claim 1, characterized in that: A gap is provided between the rod body and the third bushing.

4. The 110 GHz cable RF connector according to claim 1, characterized in that: An outer wall of the nut is provided with an external thread, and the other end of the shell is provided with a threaded hole matched with the external thread.

5. The 110 GHz cable RF connector according to claim 1, characterized in that: A sealing ring is arranged on the shell.

6. The 110 GHz cable RF connector according to claim 1, characterized in that: A clamping ring is arranged between the shell and the screw sleeve.

7. A 110 GHz cable RF connector according to claim 6, characterized in that: The shell is provided with an annular groove for installing a snap ring.

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