Anti-rotation RF coaxial adapter

Abstract

The anti-rotation radio frequency coaxial adapter can quickly realize the conversion between the CP-50-169FB coaxial connector and the TNC coaxial connector, solves the docking problem of the connectors between different interfaces, and reduces the problems of insertion loss between links and the like. The radio frequency coaxial adapter mainly comprises a shell assembly, a front insulator, a rear insulator, an outer shell and a switching pin. The switching pin is limited in the shell assembly through the front insulator and the rear insulator, the shell assembly and the outer shell are fixed without rotation through the interference fit between the metals, so as to limit the whole in the adapter, ensure the insertion loss and the voltage standing wave ratio of the radio frequency signal, and finally realize the complete transmission of the signal.

Description

Technical Field

[0001] This invention belongs to the technical field of self-locking connectors, and particularly relates to an anti-rotation radio frequency coaxial adapter. Background Technology

[0002] As airborne products face increasingly stringent requirements regarding vibration environments and ease of maintenance, there is an urgent need for RF coaxial converter connectors that prevent loosening. Achieving interoperability between standard TNC products and CP-50-169FB products has become a challenge. Different devices use different connector interface types, but interconnection is often necessary in practical applications. To achieve this, adapter cables have emerged; however, the long distances, high insertion losses, and high voltage standing wave ratios of these cables are difficult to overcome. Summary of the Invention

[0003] In view of this, the present invention provides an anti-rotation radio frequency coaxial adapter to solve the technical problem of low installation efficiency between connectors.

[0004] A rotation-resistant radio frequency coaxial adapter is provided, comprising a housing, an inner housing, and adapter pins, wherein the housing partially nests the inner housing, wherein:

[0005] The inner shell is filled with a first insulating layer and a second insulating layer at intervals. The adapter pin is embedded in the space formed by the first insulating layer and the second insulating layer, and the adapter pin is limited.

[0006] The beneficial effects of this invention are:

[0007] It enables quick conversion between coaxial connectors with different interfaces, low product performance loss, low voltage standing wave ratio, convenient and quick installation and locking, and low cost. It also achieves anti-rotation function and stable electrical performance, thereby ensuring excellent transmission of radio frequency signals. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a perspective view of the structure of the present invention;

[0010] Figure 2 This is a front half-sectional view of the inner and outer shells of the present invention after they are joined together;

[0011] Figure 3 This is a front half-sectional view of the inner shell of the present invention;

[0012] Figure 4 This is a perspective view of the outer casing of the present invention;

[0013] Figure 5 This is a perspective view of the inner casing of the present invention;

[0014] Figure 6 These are the simulation results of the radio frequency coaxial adapter of this invention.

[0015] in:

[0016] 1. Outer shell; 2. Inner shell; 11. First shell; 12. Second shell; 13. First insulating layer; 14. Second insulating layer; 15. First notch; 16. Second notch; 17. First retaining ring; 3. Connecting nut; 21. Second retaining ring; 41. Pin housing; 42. Needle tube; 43. Pin; 5. Rubber pad; 6. Snap ring; 7. Straight knurled. Detailed Implementation

[0017] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0018] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. This disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0019] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this disclosure, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0020] like Figure 1The anti-rotation RF coaxial adapter shown includes a housing 1, an inner housing 2, and adapter pins. The housing 1 partially nests within the inner housing 2. The inner housing 2 is filled with a first insulating layer 13 and a second insulating layer 14 spaced apart. The adapter pins are embedded within the space formed by the first insulating layer 13 and the second insulating layer 14, and the space within the first insulating layer 13 and the second insulating layer 14 is used to limit the movement of the adapter pins. The first insulating layer 13 and the second insulating layer 14 are made of rubber, plastic, or other insulating materials found in the prior art.

[0021] As a specific implementation method provided in this case, such as Figure 2 As shown, the inner shell 2 includes a first shell 11 and a second shell 12, as follows: Figure 5 As shown, the size of the first housing 11 is larger than the size of the second housing 12, wherein one end of the second housing 12 is embedded inside the first housing 11, as shown. Figure 3 As shown, the two parts are connected at least by means of a retaining ring 6, with the other end interference-fitted with the outer shell 1 at position a in the figure. The retaining ring 6 is a commonly used connection method in the prior art, and its purpose is to fix the two parts. The combined length of the outer shell 1 and the inner shell 2 is greater than the length of the adapter pin. The adapter pin includes a pin 43, which does not protrude from the outer shell 1 or the inner shell 2, facilitating installation after mating with the connector.

[0022] As a specific embodiment provided in this case, a first notch 15 is provided on the inner wall surface of the second housing 12 near one end of the outer housing 1, and a second notch 16 is provided on the outer wall surface away from the outer housing 1. The purpose of the first notch 15 is to increase the force on the first insulating layer 13, and the purpose of the second notch 16 is to further increase the fastening force between the first housing 11 and the second housing 12, wherein:

[0023] A connecting nut 3 is installed on the second notch 16, and a bolt is installed at the corresponding position on the first housing 11 to fix the first housing 11 and the second housing 12; the first insulating layer 13 extends from the inner wall surface of one end of the second housing 12 into the first notch 15 (partially embedded in the first notch 15), and the second insulating layer 14 is located at the port position of the second housing 12 near the outer housing 1. The first insulating layer 13 and the second insulating layer 14 form an installation area for installing the adapter pin.

[0024] As a specific implementation method provided in this case, the adapter pin is a product of the prior art. This invention mainly applies the adapter pin to the conversion between the CP-50-169FB coaxial connector and the TNC coaxial connector, solving the mating problem between connectors with different interfaces. The adapter pin is a double-headed pin 43, including a pin 43, a pin housing 41 located in the middle, and a pin tube 42, wherein:

[0025] The two ends of the pin housing 41 are pressed against the first insulating layer 13 and the second insulating layer 14, forming a fastening between the pin housing 41 and preventing the pin 43 from rotating along the axial direction of the adapter pin. Figure 3 As shown, a rubber gasket 5 for sealing is installed between the second notch 16 and the first housing 11.

[0026] As a specific implementation method provided in this case, such as Figure 4 As shown, the outer shell 1 has a gradient structure (variable cross-section structure), with the largest part fitting the second shell 12 with an interference fit. The first shell 11 has anti-rotation knurling on its circumference. The variable cross-section improves the rigidity of the outer shell 1. The diameter of the variable cross-section gradually decreases towards the right, with the placement direction in the figure as a reference, forming a good rigidity transition and facilitating mating with the coaxial connector.

[0027] As a specific embodiment provided in this case, to further improve the fixing performance of the pin 43, prevent axial movement, and prevent axial rotation, a first retaining ring 17 is embedded at the end of the first insulating layer 13 away from the outer shell 1, and one end of the first retaining ring 17 is connected to the second shell 12. The two ends of the left needle tube 42 are resisted between the first retaining ring 17 and the pin shell 41. The left needle extends out of the first retaining ring 17 and connects to the corresponding adapter. The first retaining ring 17 and the pin shell 41 limit the left needle (axially) and increase the fastening force of the first insulator on the left needle tube 42 when under force, preventing rotation. A second retaining ring 21 is installed in the port of the outer shell 1 away from the inner shell 2, and the needle tube 42 at one end of the adapter pin tightly passes through the second retaining ring 21. Preferably, the first retaining ring 1 is made of insulating material, or both the first retaining ring 17 and the second retaining ring 21 are made of insulating material.

[0028] The force exerted by the outer shell 1 causes the first insulating layer 13 to be stressed, which in turn acts on the adapter pins, ensuring that the adapter pins no longer rotate relative to the inner shell 2 and the outer shell 1. This guarantees the insertion loss and voltage standing wave ratio of the RF signal, ultimately achieving complete signal transmission. Through the design of the structure of the inner shell 2 and the outer shell 1, as well as the simulation of the dimensions of the internal air cavity, the technical solution was finally determined, ensuring the product's technical performance. The simulation results are presented in the sample. Figure 6 .

[0029] The overall advantages of this invention are: the RF coaxial adapter enables rapid conversion between coaxial connectors with different interfaces (achieving conversion between CP-50-169FB and TNC coaxial connectors, and preventing connector rotation, thereby improving electrical performance such as insertion loss and voltage standing wave ratio). In terms of product performance, it features low loss, low voltage standing wave ratio, convenient and quick installation and locking, and low cost. Through interference fit design and simulation verification, the product achieves anti-rotation function and stable electrical performance, thus ensuring excellent RF signal transmission. While meeting performance requirements, the innovative design of this product takes into account factors such as appearance, weight, and maintenance costs, and ensures its process rationality, reducing product cost.

[0030] To achieve better and more complete signal transmission, the technical solution was determined through the design of the inner and outer shell structures and the simulation of the internal air cavity dimensions, ensuring the product's technical performance. The simulation results were presented in the sample. Figure 6 As shown, the curve is smooth and the performance shows an upward trend, indicating improved transmission performance.

[0031] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An anti-rotation radio frequency coaxial adapter, comprising: The application relates to a connector, which comprises an outer shell, an inner shell and a conversion pin, the outer shell is partially nested with the inner shell, the outer shell is provided with a variable cross-section structure, wherein, the inner shell is filled with a first insulation layer and a second insulation layer, the conversion pin is embedded in the space formed by the first insulation layer and the second insulation layer and is limited by the first insulation layer and the second insulation layer, and the first insulation layer and the second insulation layer are made of rubber or plastic; the inner shell comprises a first shell and a second shell, the size of the first shell is larger than that of the second shell, one end of the second shell is partially embedded in the first shell and is connected by at least a snap spring, and the other end is in interference fit with the outer shell; the length of the combination of the outer shell and the inner shell is larger than that of the conversion pin; a first notch is arranged on the inner wall surface of one end of the second shell close to the outer shell, and a second notch is arranged on the outer wall surface of the other end of the second shell away from the outer shell, wherein a connecting nut is arranged on the second notch, and a bolt is arranged on the corresponding position of the first shell to fix the first shell and the second shell; the first insulation layer extends from the inner wall surface of one end of the second shell to the first notch, the second insulation layer is arranged at the port position of the second shell close to the outer shell, and the installation area of the conversion pin is formed between the first insulation layer and the second insulation layer; the conversion pin is a double-head type pin, which comprises a pin, a pin shell at the middle position and a needle tube, wherein the two ends of the pin shell are resisted between the first insulation layer and the second insulation layer to fasten the pin shell and avoid the rotation of the pin along the circumference of the conversion pin; a first stop ring is embedded in one end of the first insulation layer away from the outer shell, and one end of the first stop ring is connected with the second shell to increase the fastening force of the first insulation layer, a second stop ring is arranged in the port of the outer shell away from the inner shell, and the needle tube at one end of the conversion pin tightly passes through the second stop ring.

2. The anti-rotation RF coaxial adapter of claim 1, wherein, a rubber pad is arranged between the second notch and the first shell to seal.

3. The anti-rotation RF coaxial adapter of claim 2, wherein, the size of the largest part of the outer shell is in interference fit with the second shell.

4. The anti-rotation RF coaxial adapter of claim 3, wherein, straight-line knurls are arranged on the circumference of the first shell to prevent rotation.

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