High-power bent radio frequency coaxial connector structure

Abstract

The utility model relates to the technical field of radio frequency coaxial connectors, in particular to a high-power bent radio frequency coaxial connector structure. The structure comprises a first outer conductor, a first insulating part, a first inner conductor, a second inner conductor, a second outer conductor and a second insulating part, one end of the first insulating part is provided with a second through groove, an accommodating platform is arranged in the second through groove, and the side surface of the second insulating part is vertically provided with a diversion trench. In the assembling process of the connector, the accommodating platform is filled with liquid epoxy resin, and in the process of stamping one end of the second insulating part to the second through groove, the epoxy resin flows along the diversion trench after the second through groove is filled with the epoxy resin based on the fluidity of the liquid epoxy resin under the action of extrusion force, and in the flowing process, the epoxy resin flows along the diversion trench after the second through groove is filled with the epoxy resin. And gaps at the corners are filled, and internal air is exhausted, so that the influence of the gaps at the corners is avoided, and the voltage resistance of the connector is improved.

Description

Technical Field

[0001] This application relates to the field of radio frequency coaxial connector technology, and in particular to a high-power bent radio frequency coaxial connector structure. Background Technology

[0002] High-power coaxial connectors are mainly used in the semiconductor / photovoltaic manufacturing field to provide a means of connection for various devices driven by radio frequency energy, including semiconductor etching processes and semiconductor / photovoltaic coating processes. Their voltage resistance and current carrying capacity determine the output power of the system, which directly affects the efficiency of production and manufacturing. Judging from the current development trend, the semiconductor / photovoltaic manufacturing field will move towards higher power in the future.

[0003] Currently, the mainstream high-power elbow connectors in the industry generally have a withstand voltage of 5000V. Due to assembly process and processing difficulty, the insulator, center conductor and shell at the elbow corner cannot be completely integrated into a single structure. Using more than one insulator for splicing will result in gaps between the insulators after assembly. At the same time, a high creepage distance cannot be formed at the elbow corner, making it difficult to achieve a higher withstand voltage in the same volume, thus affecting the transmission power of the system.

[0004] Therefore, how to design a high-power bent RF coaxial connector structure that avoids the influence of gaps at corners is an important technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] In order to overcome at least some of the defects and deficiencies in the prior art, this application provides a high-power bent RF coaxial connector structure that can avoid the influence of gaps at corners to improve voltage withstand performance.

[0006] Specifically, embodiments of the present invention provide a high-power bent RF coaxial connector structure, employing the following technical solution:

[0007] A high-power bent RF coaxial connector structure includes: a first outer conductor with a first through-groove at one end; a first insulating member located inside the first outer conductor and having a second through-groove opposite the first through-groove, wherein a receiving platform is provided in the second through-groove, and the receiving platform is used to fill liquid epoxy resin; a first inner conductor located inside the first insulating member and having a third through-groove opposite the second through-groove; a second inner conductor, one end of which is embedded in the third through-groove to connect to the first inner conductor and form a corner at the connection; a second outer conductor sleeved on the second inner conductor and having one end embedded in the first through-groove to connect to the first outer conductor; a second insulating member located inside the second outer conductor and sleeved on the second inner conductor, wherein a flow guide groove is formed on the side of the second insulating member, and one end of the second insulating member is embedded in the second through-groove and abuts against the receiving platform to connect to the first insulating member, wherein during the embedding process, epoxy resin flows along the flow guide groove.

[0008] By adopting the above technical solution, the first outer conductor and the second outer conductor can be connected through the first through groove, the first insulating component and the second insulating component can be connected through the second through groove, the first inner conductor and the second inner conductor can be connected through the second through groove, and the connector can be combined through the hierarchical nesting of the first outer conductor, the first insulating component, the first inner conductor, the second inner conductor, the second outer conductor and the second insulating component. During the combination process, by setting a receiving platform in the second through groove and filling the receiving platform with liquid epoxy resin, and cooperating with the guide groove opened on the side of the second insulating component, when one end of the second insulating component is finally inserted into the second through groove, the epoxy resin flows along the guide groove after filling the second through groove based on the extrusion pressure. This can fill the gap at the corner and expel the internal air, thereby avoiding the influence of the gap at the corner and improving the voltage withstand performance of the connector.

[0009] Optionally, the outer surface of the third through groove of the first inner conductor is configured as a milling platform, which is flush with the abutment surface of the second inner conductor.

[0010] By adopting the above technical solution, the outer surface of the third through groove of the first inner conductor is set as a milling platform, which is flush with the contact surface of the second inner conductor. This makes the contact between the two closer and smoother, and improves the stability and reliability of the connection.

[0011] Optionally, it also includes: a fastener, one end of which is embedded in the end of the second outer conductor away from the first outer conductor.

[0012] By adopting the above technical solution, the fastener is embedded in the end of the second outer conductor away from the first outer conductor, which can effectively improve the overall mechanical strength and stability of the connector, prevent loosening caused by external vibration or impact, and thus ensure the reliability and safety of the connector in high-power radio frequency transmission.

[0013] Optionally, it also includes: a contact element, sleeved on the first outer conductor, with a corresponding first sleeve groove provided on the first outer conductor, one end of the contact element being movably embedded in the first sleeve groove.

[0014] By adopting the above technical solution, the contact is sleeved on the first outer conductor, and one end of the contact is movably embedded in the first sleeve groove, which can effectively enhance the contact reliability between the connector and the external connector and reduce poor contact problems caused by vibration or external impact.

[0015] Optionally, it also includes: a spring element, sleeved on the first outer conductor, and a second sleeve groove for accommodating the spring element is provided between the first outer conductor and the contact element.

[0016] By adopting the above technical solution, the spring component can save effort and reset the connector during insertion and removal, thus facilitating the insertion and removal of the connector.

[0017] Optionally, it also includes: a steel ball, and a through hole for accommodating the steel ball is provided on the first outer conductor, the through hole being located at the end of the second sleeve groove away from the first sleeve groove.

[0018] By adopting the above technical solution, the steel ball design enables the connector to achieve better positioning and fixation when connecting to external connectors, ensuring a tight connection between the connector and the external connector and improving the overall stability and reliability of the connector. At the same time, the steel ball can also reduce wear on the connector during use to a certain extent, extending its service life.

[0019] Optionally, it also includes: a snap-fit ​​component, which is fitted onto the first insulating component.

[0020] By adopting the above technical solution, the snap-fit ​​component can effectively enhance the stability of the interlocking connection between the first insulating component and other external connectors, thereby improving the overall reliability of the RF coaxial connector.

[0021] Optionally, the third through groove is a threaded hole, and an external thread is provided on the outer side of one end of the corresponding second inner conductor.

[0022] By adopting the above technical solution, the first inner conductor and the second inner conductor are connected by a threaded connection, which not only facilitates installation and disassembly, but also effectively prevents loosening caused by vibration or impact, ensuring that the connector works stably for a long time in high-power, high-frequency environments.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting a receiving platform and filling it with liquid epoxy resin in the first insulating component, and cooperating with the flow guide groove design on the second insulating component, when the second insulating component is inserted into the second through groove, the liquid epoxy resin fills the second through groove and flows along the flow guide groove to fill the corner and expel the internal air, thereby avoiding the influence of gaps at the corner and improving the voltage withstand performance.

[0025] 2. The design of the flow channel ensures the flow direction of epoxy resin during the embedding process at one end of the second insulating component, so that the liquid epoxy resin fills the gap and improves the electrical insulation performance.

[0026] 3. Setting the outer surface of the third through groove of the first inner conductor as a milling platform, which is flush with the contact surface of the second inner conductor, can make the contact between the two tighter and smoother, and improve the stability and reliability of the connection.

[0027] 4. The contact is sleeved on the first outer conductor, and one end of the contact is movably embedded in the first sleeve groove, which can effectively enhance the contact reliability between the connector and the external connector and reduce poor contact problems caused by vibration or external impact. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of a high-power bent radio frequency coaxial connector structure disclosed in an embodiment of this application;

[0029] Figure 2 for Figure 1 A cross-sectional schematic diagram of a high-power bent RF coaxial connector structure is shown.

[0030] Figure 3 for Figure 1 The diagram shows an exploded view of the first and second outer conductors of a high-power bent RF coaxial connector structure.

[0031] Figure 4 for Figure 1 The diagram shows an incomplete exploded view of a high-power bent RF coaxial connector structure.

[0032] Figure 5 for Figure 1An exploded view of the first insulating component, the second insulating component, the first inner conductor, and the second inner conductor of a high-power bent radio frequency coaxial connector structure.

[0033] Figure 6 for Figure 1 The diagram shows the structure of the second insulating component of a high-power bent RF coaxial connector.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10. First outer conductor; 11. First through groove; 12. Through hole; 13. First sleeve groove; 20. First insulating component; 21. Second through groove; 22. Receiving platform; 30. First inner conductor; 31. Third through groove; 32. Milled surface platform; 40. Second inner conductor; 41. Abutment surface; 42. External thread; 50. Second outer conductor; 60. Second insulating component; 61. Guide groove; 70. Fastener; 80. Contact component; 81. Second sleeve groove; 90. Spring component; 100. Steel ball; 110. Engaging component. Detailed Implementation

[0036] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to and includes any or all possible combinations of one or more of the listed items.

[0037] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0038] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0039] See Figure 1 and Figure 2 This application discloses a high-power bent radio frequency coaxial connector structure, including: a first outer conductor 10, a first insulating member 20, a first inner conductor 30, a second inner conductor 40, a second outer conductor 50, and a second insulating member 60.

[0040] See Figure 3 and Figure 4One end of the first outer conductor 10 is provided with a first through groove 11, and one end of the second outer conductor 50 is connected to one end of the first outer conductor 10 through the first through groove 11 to serve as the outer shell of the connector, while forming a corner at the connection.

[0041] See Figure 2 , Figure 4 and Figure 5 The first insulating member 20 is located inside the first outer conductor 10 and is fitted with the first inner conductor 30. One end of the first insulating member 20 is provided with a second through groove 21 opposite to the first through groove 11. The second insulating member 60 is located inside the second outer conductor 50 and is fitted with the second inner conductor 40. One end of the second insulating member 60 is connected to one end of the first insulator through the second through groove 21 by stamping, so as to serve as the insulator inside the connector. The corresponding connection point is located at the corner.

[0042] The first inner conductor 30 is located within the first insulating member 20, and a third through groove 31 is provided opposite to the second through groove 21. The second inner conductor 40 is located within the second insulating member 60 and is connected to one end of the first inner conductor 30 via the third through groove 31 through a threaded connection, serving as the center conductor of the connector. The corresponding connection point is located at a corner. The corresponding third through groove 31 is a threaded hole, and one end of the second inner conductor 40 has an external thread 42 on its outer side. This not only facilitates the installation and disassembly of both conductors but also effectively prevents loosening due to vibration or impact, ensuring long-term stable operation of the connector in high-power, high-frequency environments.

[0043] Specifically, a receiving platform 22 is provided within the second through slot 21. For example... Figure 6 As shown, a guide groove 61 is vertically formed on the side of the second insulating component 60. During connector assembly, the first outer conductor 10, the first insulating component 20, the first inner conductor 30, the second inner conductor 40, and the second outer conductor 50 need to be assembled first. After assembly, liquid epoxy resin is filled into the receiving platform 22. Finally, one end of the second insulating component 60 is pressed into the second through groove 21. Due to the fluidity of liquid epoxy resin, under the action of extrusion pressure, after filling the second through groove 21, the epoxy resin flows along the guide groove 61. During the flow, it fills the gaps at the bends and expels the air in the gaps. Based on the good electrical insulation properties, good shrinkage rate, and heat resistance of epoxy resin, using epoxy resin to fill the gaps can eliminate creepage gaps, thereby improving the withstand voltage performance.

[0044] See Figure 4 In this embodiment, the first outer conductor 10, the first insulating member 20, the first inner conductor 30, the second inner conductor 40, the second outer conductor 50, and the second insulating member 60 are all cylindrical in shape. To ensure a tighter and smoother contact between the first inner conductor 30 and the second inner conductor 40, as shown... Figure 5 As shown, the outer surface of the third through groove 31 of the first inner conductor 30 is set as a milling platform 32. When the second inner conductor 40 is connected to the first inner conductor 30, its abutting surface 41 is flush with it, which can improve the stability and reliability of the connection between the two.

[0045] See Figure 2 and Figure 3 In this embodiment, a fastener 70 is also included, which is used to press one end of the second outer conductor 50 into the end away from the first outer conductor 10 after the epoxy resin has solidified, so as to improve the overall strength and stability of the connector, prevent loosening caused by external vibration or impact, and thus ensure the reliability and safety of the connector in high-power radio frequency transmission.

[0046] See Figure 2 and Figure 3 In this embodiment, a contact 80 and a spring 90 are also included. The contact 80 is used to be sleeved on the first outer conductor 10 by punching. A first sleeve groove 13 is provided on the first outer conductor 10, and one end of the contact 80 is movably embedded in the first sleeve groove 13.

[0047] The spring member 90 is sleeved on the first outer conductor 10, and a second sleeve groove 81 for accommodating the spring member 90 is provided between the first outer conductor 10 and the contact member 80 (e.g., Figure 2 (As shown). Thus, the spring 90 is positioned so that one end of the contact 80 is movably embedded in the first set groove 13. When the connector is inserted or removed, it serves to save effort on the one hand and to reset on the other hand, so as to facilitate the insertion and removal of the connector.

[0048] See Figure 2 and Figure 3 To ensure better positioning and fixation of the connector when connecting to external connectors, this embodiment also includes steel balls 100. Correspondingly, a through hole 12 for accommodating the steel ball 100 is provided on the first outer conductor 10. Multiple through holes 12 and steel balls 100 are provided to ensure a tight connection between the connector and the external connector, improving the overall stability and reliability of the connector. Simultaneously, the steel ball 100 can also reduce wear on the connector during use to a certain extent, extending its service life.

[0049] See Figure 2 and Figure 6 In this embodiment, a snap-fit ​​component 110 is also included, which is used to fit onto the first insulating component 20, thereby enhancing the stability of the interlocking connection between the first insulating component 20 and other external connectors, and further improving the connection reliability of the entire RF coaxial connector.

[0050] Finally, it is worth mentioning that in another embodiment, the flow channel 61 can also be provided inside the second outer conductor 50 so that when the second insulating member 60 is embedded in the second through groove 21 by stamping, the liquid epoxy resin flows along the flow channel 61 inside the second outer conductor 50.

[0051] In summary, the high-power bent RF coaxial connector structure disclosed in this application, through the accommodating platform 22 provided in the second through groove 21 and the accommodating platform 22 filled with liquid epoxy resin, combined with the guide groove 61 opened on the side of the second insulating member 60, allows the epoxy resin to flow along the guide groove 61 after filling the second through groove 21 under the pressure of extrusion when one end of the second insulating member 60 is finally inserted into the second through groove 21. This can fill the gap at the corner and expel the internal air, thereby avoiding the influence of the gap at the corner and improving the voltage withstand performance of the connector.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-power bent-type RF coaxial connector structure, characterized in that, include: The first outer conductor (10) has a first through groove (11) at one end. The first insulating element (20) is located inside the first outer conductor (10) and has a second through groove (21) provided opposite to the first through groove (11). A receiving platform (22) is provided in the second through groove (21), wherein the receiving platform (22) is used to fill liquid epoxy resin. The first inner conductor (30) is located inside the first insulating member (20) and has a third through groove (31) provided opposite to the second through groove (21). The second inner conductor (40) is embedded at one end in the third through groove (31) to connect to the first inner conductor (30), forming a corner at the connection point; The second outer conductor (50) is fitted with the second inner conductor (40), and one end is embedded in the first through groove (11) to connect the first outer conductor (10). The second insulating member (60) is located inside the second outer conductor (50) and is fitted with the second inner conductor (40). A flow guide groove (61) is provided on the side of the second insulating member (60). One end of the second insulating member (60) is embedded in the second through groove (21) and abuts against the receiving platform (22) to connect the first insulating member (20). During the embedding process, epoxy resin flows along the flow guide groove (61).

2. The high-power bent RF coaxial connector structure according to claim 1, characterized in that, The outer surface of the third through groove (31) of the first inner conductor (30) is set as a milling platform (32) and is flush with the contact surface (41) of the second inner conductor (40).

3. The high-power bent RF coaxial connector structure according to claim 1, characterized in that, Also includes: The fastener (70) is embedded at one end in the end of the second outer conductor (50) away from the first outer conductor (10).

4. The high-power bent RF coaxial connector structure according to claim 1, characterized in that, Also includes: A contact (80) is sleeved on the first outer conductor (10), and a first sleeve groove (13) is provided on the first outer conductor (10). One end of the contact (80) is movably embedded in the first sleeve groove (13).

5. The high-power bent RF coaxial connector structure according to claim 4, characterized in that, Also includes: A spring member (90) is sleeved on the first outer conductor (10), and a second sleeve groove (81) for accommodating the spring member (90) is provided between the first outer conductor (10) and the contact member (80).

6. The high-power bent RF coaxial connector structure according to claim 5, characterized in that, Also includes: A steel ball (100) is provided on the first outer conductor (10) with a through hole (12) for accommodating the steel ball (100). The through hole (12) is located at the end of the second sleeve groove (81) away from the first sleeve groove (13).

7. The high-power bent RF coaxial connector structure according to claim 1, characterized in that, Also includes: The snap-fit ​​component (110) is fitted onto the first insulating component (20).

8. The high-power bent RF coaxial connector structure according to claim 1, characterized in that, The third through groove (31) is a threaded hole, and an external thread (42) is provided on the outer side of one end of the corresponding second inner conductor (40).

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