Radio frequency test line with novel structure

By designing a novel RF test line structure with a detachable outer conductor, the problem of short outer conductor lifespan is solved, enabling rapid replacement of the outer conductor, reducing testing costs and improving testing efficiency.

CN224232983UActive Publication Date: 2026-05-12ELECTRIC CONNECTOR TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ELECTRIC CONNECTOR TECH
Filing Date
2025-04-14
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The short lifespan of the outer conductor of existing RF test lines leads to high testing costs and requires replacing the entire line, which affects testing efficiency.

Method used

A novel RF test lead with a detachable outer conductor is designed, enabling quick replacement of the outer conductor through a nut locking mechanism. The main body and the interior of the detachable outer conductor are equipped with a center pin, elastic element, and insulator to ensure electrical stability and signal transmission.

Benefits of technology

It reduces testing costs, improves testing efficiency, does not affect the electrical performance of the testing system, and does not require recalibration after the outer conductor is replaced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a radio frequency test line with a novel structure, which comprises a main body part and a detachable outer conductor clamped on the main body part, and the main body part and the detachable outer conductor are locked and matched through a nut. A central pin, an elastic piece, a first insulator and a second insulator are arranged in the main body part and the detachable outer conductor, the second insulator is clamped on the main body part, the central pin penetrates through the elastic piece, the first insulator and the second insulator, and the cable is connected with the main body part. According to the utility model, the detachable outer conductor is designed, so that the outer conductor which is easy to lose is convenient to replace, the cost is greatly saved, the electrical performance of the whole test line and the test system is not influenced, and the test efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of radio frequency test line technology, and in particular to a novel radio frequency test line structure. Background Technology

[0002] In wireless communication equipment, radio frequency (RF) test lines are indispensable tools. From technology development, design verification, product debugging and mass production, RF test lines play an important role in every stage of the RF life cycle. RF test lines have high electrical requirements, which in turn requires high precision in the machining of components. Therefore, the research and development and testing costs of communication equipment are very high.

[0003] Currently used RF test leads have a low lifespan. The outer conductor typically has a lifespan of only 500-1000 cycles, while the center pin can have a minimum lifespan of 20,000 cycles. Since the outer conductor is usually not removable, the entire test lead needs to be replaced after use, resulting in high testing costs. To meet the demand for more efficient use, a new type of RF test lead structure needs to be designed. The easily damaged outer conductor is designed as a quick-replaceable part. After replacement, the electrical properties of the entire test lead will not be affected, thus reducing testing costs and improving testing efficiency. Utility Model Content

[0004] Based on the above-mentioned technical problems, this utility model provides a novel structure of radio frequency test line with a detachable outer conductor.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A novel radio frequency test cable is provided, comprising a main body and a detachable outer conductor snapped onto the main body. The main body and the detachable outer conductor are locked together by a nut. The main body and the detachable outer conductor are internally provided with a center pin, an elastic element, a first insulator, and a second insulator. The second insulator is snapped onto the main body. The center pin passes through the elastic element, the first insulator, and the second insulator. The cable is also included and connected to the main body.

[0007] Preferably, the first segment of the main body includes a first step, a second step, an external thread, and a first limiting part and a second limiting part connected by the second step, wherein the external thread is disposed on the outer periphery of the first segment of the main body.

[0008] Preferably, the detachable outer conductor has an outward protrusion at its tail end forming a first locking portion and an upward protrusion forming a second locking portion, the second locking portion engaging with the second limiting portion and abutting against the second step.

[0009] Preferably, the upper surface of the nut abuts against the first step, the inner wall of the upper section of the nut is provided with an internal thread that matches the external thread, the lower section of the nut is recessed to form a third limiting part, the first locking part is embedded in the third limiting part and abuts against the annular surface of the first section of the main body.

[0010] Preferably, the tail end of the second insulator protrudes outward to form a third locking portion, and the third locking portion and the second insulator form a "T" shaped structure.

[0011] Preferably, the third locking part is embedded in the first limiting part and abuts against the second step, and the front end of the second insulator abuts against the inner wall of the detachable outer conductor.

[0012] Preferably, the tail of the center pin is disposed within the elastic member, the middle part of the center pin is engaged in the groove formed by the third locking part, and the front part of the center pin penetrates the second insulator.

[0013] Preferably, the center pin elastically abuts against the radio frequency test socket under the elastic action of the elastic element.

[0014] Preferably, the cable passes through the rear end of the main body portion and reaches the interior of the main body portion.

[0015] Preferably, the first segment of the main body secures the second insulator and the detachable outer conductor, and the nut screws the main body and the detachable outer conductor together.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a novel structure for radio frequency test lines, which designs the easily damaged outer conductor as a detachable part, greatly saving costs, without affecting the electrical performance of the entire test line and test system, and improving test efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0019] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged view of part A in the image;

[0020] The reference numerals in the accompanying drawings include:

[0021] Main body -1, First step -11, Second step -12, External thread -13, First limiting part -14, Second limiting part -15, Annular surface -16, Outer conductor -2, First locking part -21, Second locking part -22, Nut -3, Internal thread -31, Third limiting part -32, Center pin -4, Elastic element -5, First insulator -6, Second insulator -7, Third locking part -71, Groove -711, Cable -8. Detailed Implementation

[0022] This application provides a novel RF test line structure. By designing the easily damaged outer conductor as a quickly replaceable component, testing costs are saved. Furthermore, replacing the outer conductor does not affect the electrical performance of the entire RF test line and test system, and recalibration is not required, thus improving testing efficiency.

[0023] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0024] like Figures 1 to 3 The following is an embodiment of this application:

[0025] A novel radio frequency test cable includes a main body 1 and a detachable outer conductor 2 snapped onto the main body 1. The main body 1 and the detachable outer conductor 2 are locked together by a nut 3. After the detachable outer conductor 2 has undergone test wear, it can be quickly replaced by the nut 3. The main body 1 and the detachable outer conductor 2 are internally provided with a center pin 4, an elastic element 5, a first insulator 6, and a second insulator 7. The second insulator 7 is snapped onto the main body. The center pin 4 passes through the elastic element 5, the first insulator 6, and the second insulator 7. The cable 8 is also connected to the main body 1.

[0026] Furthermore, the first segment of the main body 1 includes a first step 11, a second step 12, an external thread 13, and a first limiting part 14 and a second limiting part 15 connected by the second step 12. The external thread 13 is disposed on the outer periphery of the first segment of the main body 1. The tail end of the detachable outer conductor 2 protrudes outward to form a first locking part 21 and protrudes upward to form a second locking part 22. The second locking part 22 is engaged with the second limiting part 15 and abuts against the second step 12. The engaging engagement between the second locking part 22 and the second limiting part 15 makes the structure of the main body 1 and the outer conductor 2 stable and reliable. The nut 3 The upper surface of the nut 3 abuts against the first step 11. The inner wall of the upper section of the nut 3 is provided with an internal thread 31 that matches the external thread 13. The nut 3 locks and fixes the main body 1 and the outer conductor 2 by screwing, realizing the detachable replacement of the outer conductor 2 and saving testing costs. The lower section of the nut 3 is recessed to form a third limiting part 32. The first locking part 21 is embedded in the third limiting part 32 and abuts against the annular surface 16 of the first section of the main body 1. This not only ensures that the detachable outer conductor 2 can be quickly replaced and locked in place, but also ensures that the detachable outer conductor 2 and the main body 1 cooperate stably and reliably.

[0027] Furthermore, the tail end of the second insulator 7 protrudes outward to form a third locking part 71, which forms a "T"-shaped structure with the second insulator 7. The third locking part 71 is embedded in the first limiting part 14 and abuts against the second step 12. The front end of the second insulator 7 abuts against the inner wall of the detachable outer conductor 2. The second insulator 7 is firmly connected to the main body part 2. This structure has high stability and reliability, which can ensure that it maintains good performance under long-term operation and complex working conditions, and will not have structural failures or faults, providing a solid guarantee for the safe and efficient operation of the entire system.

[0028] Furthermore, the tail of the center pin 4 is disposed within the elastic member 5, and the middle part of the center pin 4 is engaged in the groove 711 formed by the third locking part 71. The front part of the center pin 4 penetrates the second insulator 7, which is used to achieve electrical isolation and ensure insulation performance and safety during the test process. The center pin 4 elastically abuts against the RF test socket under the elastic action of the elastic member 5. The elastic member 5 provides necessary elastic support for the center pin 4. The engagement of the center pin 4 within the groove 711 ensures the structural stability of the center pin 4. The elastic abutment method not only ensures good electrical contact but also effectively buffers external impacts and vibrations, thereby improving the stability and reliability of the entire structure. The cable enters from the tail end of the main body part 1 and reaches the interior of the main body part 1, providing a stable channel for signal transmission and ensuring the integrity and accuracy of the test signal.

[0029] In this embodiment, the first segment of the main body 1 fixes the second insulator 7 and the detachable outer conductor 2. The nut 3 screws the main body 1 and the detachable outer conductor 2 together. This solves the problem that traditional RF test lines require replacing the entire test line after the outer conductor is damaged, and the R&D and testing costs are high. The damaged outer conductor 2 can be replaced simply by using the nut 3. There is no need to recalibrate the test system, and the electrical performance of the entire RF test line is not affected. This saves R&D and testing costs and improves testing efficiency.

[0030] In summary, the novel RF test cable provided by this utility model features a replaceable and easily damaged outer conductor, which greatly saves testing costs. After replacing the outer conductor, the testing system does not need to be recalibrated, thus improving testing efficiency.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A novel radio frequency test line, characterized in that, The device includes a main body and a detachable outer conductor that is snapped onto the main body. The main body and the detachable outer conductor are locked together by a nut. The main body and the detachable outer conductor are internally provided with a center pin, an elastic element, a first insulator, and a second insulator. The second insulator is snapped onto the main body. The center pin passes through the elastic element, the first insulator, and the second insulator. The device also includes a cable connected to the main body.

2. The novel radio frequency test line according to claim 1, characterized in that, The first segment of the main body includes a first step, a second step, an external thread, and a first limiting part and a second limiting part connected by the second step. The external thread is disposed on the outer periphery of the first segment of the main body.

3. The novel radio frequency test line according to claim 2, characterized in that, The detachable outer conductor has a first locking part protruding outward at its tail end and a second locking part protruding upward. The second locking part is engaged with the second limiting part and abuts against the second step.

4. The novel radio frequency test line according to claim 3, characterized in that, The upper surface of the nut abuts against the first step, the inner wall of the upper section of the nut is provided with an internal thread that matches the external thread, the lower section of the nut is recessed to form a third limiting part, the first locking part is embedded in the third limiting part and abuts against the annular surface of the first section of the main body.

5. The novel radio frequency test line according to claim 4, characterized in that, The tail end of the second insulator protrudes outward to form a third locking part, and the third locking part and the second insulator form a "T" shaped structure.

6. The novel radio frequency test line according to claim 5, characterized in that, The third locking part is embedded in the first limiting part and abuts against the second step, and the front end of the second insulator abuts against the inner wall of the detachable outer conductor.

7. The novel radio frequency test line according to claim 6, characterized in that, The tail of the center pin is disposed within the elastic member, the middle part of the center pin is engaged in the groove formed by the third locking part, and the front part of the center pin penetrates the second insulator.

8. The novel radio frequency test line according to claim 6, characterized in that, The center pin elastically abuts against the RF test socket under the elastic action of the elastic element.

9. The novel radio frequency test line according to claim 1, characterized in that, The cable passes through the tail end of the main body and reaches the interior of the main body.

10. A novel radio frequency test line according to any one of claims 1-9, characterized in that, The first section of the main body secures the second insulator and the detachable outer conductor, and the nut screws the main body and the detachable outer conductor together.