Telescopic radio frequency connector

Abstract

The utility model provides a telescopic radio frequency connector, which comprises a first connecting body, a second connecting body and an elastic body, and is characterized in that the first connecting body and the second connecting body are coaxially arranged and are clamped in a sliding manner; the elastic body is connected between the first connecting body and the second connecting body in an abutting mode and provides opposite and far-away elastic force for the first connecting body and the second connecting body. The end, away from the second connector, of the first connector is a first connecting end, the end, away from the first connector, of the second connector is a second connecting end, and the first connecting end is conductively connected with the second connecting end. According to the telescopic radio frequency connector provided by the invention, through coaxial sliding clamping of the first connecting body and the second connecting body and cooperation with elastic reset of the elastic body, reliable telescoping of the radio frequency connector can be realized, and conduction stability can be ensured.

Description

Technical Field

[0001] This application relates to the technical field of radio frequency connectors, and particularly to a retractable radio frequency connector. Background Art

[0002] A radio frequency connector is a connector for radio frequency signals. It can connect two or more high-frequency circuits together and provide low-loss and high-isolation signal transmission at the contact points of the connector.

[0003] Radio frequency connectors are widely used in radio signal connections in various fields, including various communication and radar devices, aviation and aerospace communications, medical electronics, etc. In these applications, their main function is to provide low-loss and high-isolation signal transmission. The radio frequency connector assembly realizes signal transmission between devices by connecting the circuit boards of different devices, so it must have excellent mechanical and electrical properties, such as high reliability, precision, and high anti-torsion strength.

[0004] The ultra-small push-on (SMP) radio frequency connector is a highly shielded and very small interconnect device, usually used in miniaturized high-frequency coaxial modules and high-data-rate applications, such as antennas, broadband installations, testing and measurement, and quantum computing.

[0005] In the current radio frequency connector industry, radio frequency connectors usually adopt a non-retractable structure, which results in the inability to use some mechanisms that require movement.

[0006] Therefore, researching a radio frequency connector with a retractable function and reliable performance has become an urgent problem for those skilled in the art. Utility Model Content

[0007] In order to overcome the defects of the above-mentioned prior art, this application provides a retractable radio frequency connector, which has a retractable function and reliable performance.

[0008] Specifically, this application provides a retractable radio frequency connector, which includes a first connection body, a second connection body, and an elastic body. The first connection body and the second connection body are coaxially arranged and slidably clamped; the elastic body abuts between the first connection body and the second connection body and provides an elastic force for the first connection body and the second connection body to move away from each other; one end of the first connection body away from the second connection body is a first connection end, and one end of the second connection body away from the first connection body is a second connection end, and the first connection end and the second connection end are electrically connected.

[0009] Among them, the first connection end and the second connection end can be respectively connected to the interfaces of corresponding models. The first connection body and the second connection body are slidably clamped and form a telescopic reset movement through an elastic body, enabling the telescopic connection of the RF connector and ensuring the conduction stability at any telescopic stroke.

[0010] In an alternative implementation, the first connection body includes a first outer conductor and a first inner conductor, and the first inner conductor is disposed in the inner cavity of the first outer conductor; the second connection body includes a second outer conductor and a second inner conductor, and the second inner conductor is disposed in the inner cavity of the second outer conductor; the first outer conductor and the second outer conductor are slidably connected, and the first inner conductor and the second inner conductor are slidably connected; the first outer conductor and the first inner conductor are insulated from each other, and the second outer conductor and the second inner conductor are insulated from each other.

[0011] In an alternative implementation, the first connection body includes a first insulator, and the first insulator is disposed between the first outer conductor and the first inner conductor; the second connection body includes a second insulator, and the second insulator is disposed between the second outer conductor and the second inner conductor.

[0012] In an alternative implementation, a chute is formed by inward depression on the outer surface of the first outer conductor. One end of the second outer conductor facing the first outer conductor is provided with a socket part, the socket part is sleeved on the outer surface of one end of the first outer conductor, and an outer conductor clamping part is formed inward at the end of the socket part, and the outer conductor clamping part is slidably clamped in the chute.

[0013] In an alternative implementation, a first abutting part protrudes outward from the outer surface of the first outer conductor, and a second abutting part protrudes outward from the outer surface of the second outer conductor, and the elastic body abuts between the first abutting part and the second abutting part.

[0014] In an alternative implementation, the telescopic RF connector further includes a contact elastic part, the contact elastic part is disposed in the inner cavity of the second outer conductor and is in contact with the second outer conductor, and the contact elastic part is provided with an elastic joint; one end of the first outer conductor facing the second outer conductor is provided with a docking part, and the docking part is provided with a contact sliding cavity with an outward opening; the elastic joint of the elastic part is inserted into the contact sliding cavity to form a sliding connection.

[0015] In an alternative implementation, one end of the first inner conductor is provided with a receiving part, the receiving part is provided with a sliding cavity with an external opening, and one end of the second inner conductor is provided with an inner conductor joint, and the inner conductor joint is slidably connected in the sliding cavity.

[0016] In another alternative implementation, one end of the second inner conductor is provided with a receiving portion, the receiving portion is provided with a sliding cavity with an external opening, one end of the first inner conductor is provided with an inner conductor joint, and the inner conductor joint is slidably connected to the sliding cavity.

[0017] According to the technical solutions provided by the foregoing implementations, the telescopic RF connector of the present application has at least the following advantages:

[0018] (1) Through the coaxial sliding connection of the first connector body and the second connector body, and in cooperation with the elastic reset of the elastic body, reliable telescoping of the RF connector can be achieved and the stability of conduction can be ensured.

[0019] (2) Through the independent sliding connections of the outer conductor and the inner conductor respectively, and in cooperation with different sliding connection structures, the reliability of the sliding connection can be improved.

[0020] (3) Through the outer conductor and the inner conductor separated by insulation, the reliability of electrical signal transmission can be achieved.

[0021] (4) Through the arrangement of the contact elastic member, on the one hand, the conductive connection between the first outer conductor and the second outer conductor is ensured, and on the other hand, the stability of the structure is enhanced. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Schematic diagram of the telescopic RF connector provided by an embodiment of the present application;

[0024] Figure 2 Cross-sectional view of the telescopic RF connector provided by an embodiment of the present application in the natural state;

[0025] Figure 3 Exploded view of the telescopic RF connector provided by an embodiment of the present application;

[0026] Figure 4 Schematic diagram of the first connector body of the telescopic RF connector provided by an embodiment of the present application;

[0027] Figure 5 Schematic diagram of the second connector body of the telescopic RF connector provided by an embodiment of the present application;

[0028] Figure 6 Cross-sectional view of the telescopic RF connector provided by an embodiment of the present application in the fully compressed state.

[0029] Description of reference numerals:

[0030] 1. First connector; 2. Second connector; 3. Elastic body; 4. Contact elastic member; 101. First connection end; 201. Second connection end; 11. First outer conductor; 111. Slide groove; 112. First abutting portion; 113. Butt joint; 1131. Contact slide cavity; 114. First external connection portion; 12. First inner conductor; 121. Accommodating portion; 1211. Sliding cavity; 122. First internal connection portion; 13. First insulator; 131. First insulating inner hole; 21. Second outer conductor; 211. Sleeve connection portion; 2111. External guide card portion; 212. Second abutting portion; 213. Second external connection portion; 22. Second inner conductor; 221. Internal guide joint; 222. Second internal connection portion; 23. Second insulator; 231. Second insulating inner hole; 41. Elastic joint. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] In this document, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0033] In addition, in this article, directional terms such as "upper" and "lower" are defined relative to the orientation of the structure schematically placed in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to the change of the orientation of the structure.

[0034] See also Figures 1 to 6 The present application provides a telescopic radio frequency connector, which realizes a telescopic structure and can be electrically connected through a first connector 1 and a second connector 2 that are slidably connected, and provides a telescopic reset elastic force through an elastic member.

[0035] Combination Figures 1 to 3 As shown, in one embodiment, a telescopic RF connector is provided.

[0036] Specifically, the telescopic RF connector includes a first connector body 1, a second connector body 2, and an elastomer 3. The first connector body 1 and the second connector body 2 are coaxially arranged and slidably clamped. The elastomer 3 abuts between the first connector body 1 and the second connector body 2, providing an elastic force for the first connector body 1 and the second connector body 2 to move away from each other. One end of the first connector body 1 away from the second connector body 2 is a first connection end 101, and one end of the second connector body 2 away from the first connector body 1 is a second connection end 201. The first connection end 101 and the second connection end 201 are electrically connected.

[0037] Wherein, the first connector body 1 and the second connector body 2 include conductive components, enabling the first connection end 101 and the second connection end 201 to be electrically connected.

[0038] In the operation of the telescopic RF connector of the present application, both ends of the telescopic RF connector can be connected to the circuit board interface to achieve RF signal transmission. Among them, the first connector body 1 is connected to a corresponding interface through the first connection end 101, the second connector body 2 is connected to another corresponding interface through the second connection end 201. The elastomer 3 can be compressed while moving at both ends and maintain little fluctuation in electrical performance. No matter what stroke it is compressed to, the inner and outer conductors remain in contact to ensure stable signal transmission.

[0039] In the present application, the elastomer 3 can be a spring, an elastic rubber sleeve, or other components with compressive elasticity, which provides a reset elastic force. In this embodiment, combined with Figure 3 as shown, the elastomer 3 is a spring, and its structure is simple and convenient for assembly and use.

[0040] Combined with Figure 2 and Figure 6 as shown, Figure 2 shows a cross-sectional view of the telescopic RF connector of the present application in the natural uncompressed state, Figure 6 shows a cross-sectional view of the telescopic RF connector of the present application in the fully compressed state. Among them, the first connector body 1 includes a first outer conductor 11 and a first inner conductor 12, and the first inner conductor 12 is arranged in the inner cavity of the first outer conductor 11; the second connector body 2 includes a second outer conductor 21 and a second inner conductor 22, and the second inner conductor 22 is arranged in the inner cavity of the second outer conductor 21.

[0041] The first outer conductor 11, the second outer conductor 21, the first inner conductor 12, and the second inner conductor 22 are made of conductive materials in whole or in part, such as conductive metal materials such as copper, iron, silver, alloys, etc., to provide the conductive performance required for connection.

[0042] Among them, the first outer conductor 11 and the second outer conductor 21 are slidably connected, and the first inner conductor 12 and the second inner conductor 22 are slidably connected; the first outer conductor 11 and the first inner conductor 12 are insulated from each other, and the second outer conductor 21 and the second inner conductor 22 are insulated from each other. By slidably connecting the outer conductor and the inner conductor respectively, the reliability of the overall slidable connection can be improved.

[0043] Combined with Figure 3 As described above, in this embodiment, the first outer conductor 11 and the second outer conductor 21 are of a multi-stage columnar hollow structure, and the first inner conductor 12 and the second inner conductor 22 are of an elongated columnar structure. The first outer conductor 11, the second outer conductor 21, the first inner conductor 12 and the second inner conductor 22 are coaxially arranged, which can ensure the contact reliability during the telescopic process.

[0044] Combined with Figure 2 and Figure 3 As shown, in this embodiment, the first connecting body 1 includes a first insulator 13, and the first insulator 13 is arranged between the first outer conductor 11 and the first inner conductor 12; the second connecting body 2 includes a second insulator 23, and the second insulator 23 is arranged between the second outer conductor 21 and the second inner conductor 22.

[0045] The first insulator 13 and the second insulator 23 are made of an insulating material as a whole or in part, such as insulating rubber and other materials, so as to form an insulating separation between the outer conductor and the inner conductor. Through the arrangement of the first insulator 13 and the second insulator 23, on the one hand, the outer conductor and the inner conductor can be insulated and separated from each other, and on the other hand, the inner conductor can be positioned to ensure its relative position with the outer conductor.

[0046] Specifically, combined with Figure 3 , Figure 4 and Figure 5 As shown, a first insulating inner hole 131 is provided on the central axis of the first insulator 13, and a second insulating inner hole 231 is provided on the central axis of the second insulator 23. The outer peripheral surface of the first insulator 13 abuts against the hollow inner wall of the first outer conductor 11, and the first inner conductor 12 passes through the first insulating inner hole 131; the outer peripheral surface of the second insulator 23 abuts against the hollow inner wall of the second outer conductor 21, and the second inner conductor 22 passes through the second insulating inner hole 231.

[0047] Combined with Figure 3 , Figure 4 and Figure 5 As shown, a chute 111 is formed by inwardly recessing the outer surface of the first outer conductor 11. One end of the second outer conductor 21 facing the first outer conductor 11 is provided with a socket portion 211. The socket portion 211 is sleeved on the outer surface of one end of the first outer conductor 11. An outer guide clamping portion 2111 is formed by inwardly setting at the end of the socket portion 211, and the outer guide clamping portion 2111 is slidably clamped in the chute 111.

[0048] Through the cooperation of the sliding groove 111 and the outer guide card portion 2111, the relative telescopic distance between the first connecting body 1 and the second connecting body 2 can be restricted, and the separation of the first connecting body 1 and the second connecting body 2 can also be avoided.

[0049] Combined Figures 3 to 5 As shown, in order to restrict the elastic body 3 and provide elastic support for the elastic body 3, in this embodiment, a first abutting portion 112 is formed by outward protrusion on the outer surface of the first outer conductor 11, and a second abutting portion 212 is formed by outward protrusion on the outer surface of the second outer conductor 21. The elastic body 3 abuts between the first abutting portion 112 and the second abutting portion 212.

[0050] Specifically, in this embodiment, both the first abutting portion 112 and the second abutting portion 212 can be annular protrusion structures. In other embodiments, the first abutting portion 112 and / or the second abutting portion 212 can also be several bumps arranged circumferentially.

[0051] Combined Figure 2 、 Figure 3 and Figure 6 As shown, in the present application, the telescopic radio frequency connector further includes a contact elastic member 4. The contact elastic member 4 is disposed in the inner cavity of the second outer conductor 21 and is in contact with the second outer conductor 21. The contact elastic member 4 is provided with an elastic joint 41; one end of the first outer conductor 11 facing the second outer conductor 21 is provided with a docking portion 113, and the docking portion 113 is provided with a contact sliding cavity 1131 with an outward opening; the elastic joint is inserted into the contact sliding cavity 1131 to form a sliding connection.

[0052] Specifically, combined Figure 3 As shown, in this embodiment, the contact elastic member 4 is a multi-stage columnar structure, which includes a cylindrical base, and the elastic joint 41 protrudes from the base. The elastic joint 41 includes several partially separated elastic pieces, and the elastic pieces are elastically abutted against the contact sliding cavity 1131 to provide good elastic contact.

[0053] Combined Figures 2 to 4 As shown, in this embodiment, one end of the first inner conductor 12 is provided with a receiving portion 121, and the receiving portion 121 is provided with a sliding cavity 1211 with an external opening. One end of the second inner conductor 22 is provided with an inner guide joint 221, and the inner guide joint 221 is slidably connected to the sliding cavity 1211.

[0054] In another embodiment, the settings of the receiving portion 121 and the inner guide joint 221 can be interchanged. Specifically, one end of the second inner conductor 22 is provided with a receiving portion 121, the receiving portion 121 is provided with a sliding cavity 1211 with an external opening, one end of the first inner conductor 12 is provided with an inner guide joint 221, and the inner guide joint 221 is slidably connected to the sliding cavity 1211.

[0055] Through the sliding fit between the sliding cavity 1211 of the accommodating part 121 and the inner guiding structure, good sliding fit between the first inner conductor 12 and the second inner conductor 22 can be achieved.

[0056] Combined Figure 3 with Figure 4 as shown, in this embodiment, one end of the first outer conductor 11 away from the second outer conductor 21 is provided with a first external connection part 114, and one end of the first inner conductor 12 away from the second inner conductor 22 is provided with a first internal connection part 122. The first external connection part 114 and the first internal connection part 122 constitute the first connection end 101.

[0057] Combined Figure 3 with Figure 5 as shown, in this embodiment, one end of the second outer conductor 21 away from the first outer conductor 11 is provided with a second external connection part 213, and one end of the second inner conductor 22 away from the first inner conductor 12 is provided with a second internal connection part 222. The second external connection part 213 and the second internal connection part 222 constitute the second connection end 201.

[0058] The telescopic radio frequency connector of the present application has at least the following advantages:

[0059] (1) Through the coaxial sliding connection of the first connection body and the second connection body, combined with the elastic reset of the elastic body, reliable telescoping of the radio frequency connector can be achieved and the stability of conduction can be ensured.

[0060] (2) Through the independent sliding connection of the outer conductor and the inner conductor respectively, combined with different sliding connection structures, the reliability of the sliding connection can be improved.

[0061] (3) Through the outer conductor and the inner conductor separated by insulation, the reliability of electrical signal transmission can be achieved.

[0062] (4) Through the setting of the contact elastic member, on the one hand, the conductive connection between the first outer conductor and the second outer conductor is ensured, and on the other hand, the stability of the structure is enhanced.

[0063] The telescopic radio frequency connector provided by the embodiments of the present application has been introduced in detail above. Specific embodiments are used to explain the principle and implementation manner of the present application. The above description is only used to help understand the method and its core mechanism of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific embodiments and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A telescopic radio frequency connector, characterized in that: The telescopic RF connector includes a first connector, a second connector and an elastic body, wherein the first connector and the second connector are coaxially arranged and slidably engaged; the elastic body abuts between the first connector and the second connector to provide an elastic force for the first connector and the second connector to move away from each other; an end of the first connector away from the second connector is a first connection end, an end of the second connector away from the first connector is a second connection end, and the first connection end and the second connection end are conductively connected.

2. The telescopic radio frequency connector according to claim 1, characterized in that: The first connector includes a first outer conductor and a first inner conductor, and the first inner conductor is arranged in the inner cavity of the first outer conductor; the second connector includes a second outer conductor and a second inner conductor, and the second inner conductor is arranged in the inner cavity of the second outer conductor; The first outer conductor and the second outer conductor are slidably connected, and the first inner conductor and the second inner conductor are slidably connected; the first outer conductor and the first inner conductor are insulated from each other, and the second outer conductor and the second inner conductor are insulated from each other.

3. The telescopic radio frequency connector according to claim 2, characterized in that: The first connector includes a first insulator disposed between the first outer conductor and the first inner conductor; the second connector includes a second insulator disposed between the second outer conductor and the second inner conductor.

4. The telescopic radio frequency connector according to claim 2 or 3, characterized in that: The outer surface of the first outer conductor is recessed inward to form a slide groove, and the second outer conductor is provided with a sleeve portion at one end facing the first outer conductor, and the sleeve portion is sleeved on the outer surface of one end of the first outer conductor. An outer guide portion is formed inward at the end of the sleeve portion, and the outer guide portion is slidably clamped in the slide groove.

5. The telescopic radio frequency connector according to claim 4, characterized in that: A first abutting portion is formed on an outer surface of the first outer conductor and a second abutting portion is formed on an outer surface of the second outer conductor. The elastic body abuts between the first abutting portion and the second abutting portion.

6. The telescopic radio frequency connector according to claim 4, characterized in that: The telescopic RF connector also includes a contact spring, which is arranged in the inner cavity of the second outer conductor and contacts the second outer conductor, and the contact spring is provided with an elastic joint; an end of the first outer conductor facing the second outer conductor is provided with a docking portion, and the docking portion is provided with a contact sliding cavity opening outward; the elastic joint is inserted into the contact sliding cavity to form a sliding connection.

7. The telescopic radio frequency connector according to claim 4, characterized in that: One end of the first inner conductor is provided with a receiving portion, the receiving portion is provided with a sliding cavity with an external opening, one end of the second inner conductor is provided with an inner conductor joint, the inner conductor joint is slidably connected to the sliding cavity; or, One end of the second inner conductor is provided with a receiving portion, the receiving portion is provided with a sliding cavity with an external opening, and one end of the first inner conductor is provided with an inner conductor joint, the inner conductor joint is slidably connected to the sliding cavity.

8. The telescopic radio frequency connector according to claim 2, characterized in that: A first external connection portion is disposed at one end of the first outer conductor away from the second outer conductor, a first internal connection portion is disposed at one end of the first inner conductor away from the second inner conductor, and the first external connection portion and the first internal connection portion constitute the first connection end.

9. The telescopic radio frequency connector according to claim 2, characterized in that: A second external connection portion is disposed at one end of the second outer conductor away from the first outer conductor, a second internal connection portion is disposed at one end of the second inner conductor away from the first inner conductor, and the second external connection portion and the second internal connection portion constitute the second connection end.

10. The telescopic radio frequency connector according to claim 1, characterized in that: The elastic body is a spring.

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