High-reliability floating anti-vibration radio frequency electrical connector

Abstract

The application discloses a high-reliability floating anti-vibration radio frequency electric connector and belongs to the technical field of radio frequency electric connector production, which comprises a plug and a socket, the plug comprises a plug shell, a pin shell and a pin, the socket comprises a socket shell, a socket shell and a socket, the pin shell comprises a pin front fixed shell, a pin rear fixed shell and a pin movable shell, the circumferential inner wall of the pin front fixed shell is provided with an annular groove, a pin crown spring is arranged in the annular groove, a pin compression spring is arranged between the pin movable shell and the pin shell convex ring of the pin rear fixed shell; the socket comprises a socket rear fixed contact, a socket front fixed contact and a socket movable contact, the circumferential hole wall of the socket movable contact is provided with an annular groove, a second socket crown spring is arranged in the annular groove, and a socket compression spring is arranged between the socket movable contact and the socket rear fixed contact. The application enables the inner and outer signal transmission of the radio frequency electric connector to have axial floating anti-vibration function and radial floating anti-vibration function, and realizes double insurance of contact reliability in the axial and radial directions.

Description

Technical Field

[0001] This invention belongs to the field of radio frequency electrical connector manufacturing technology, specifically relating to a high-reliability floating vibration-resistant radio frequency electrical connector. Background Technology

[0002] In addition to meeting general performance requirements, electrical connectors are particularly important in that they must have good contact, reliable operation, and easy maintenance. Their reliability directly affects the normal operation of the circuit and is related to the safety of the entire host computer. Therefore, host circuits have very strict requirements for the quality and reliability of electrical connectors. It is precisely because of the high quality and reliability of electrical connectors that they are widely used in military systems such as aviation, aerospace, and defense.

[0003] Radio frequency (RF) electrical connectors, also known as RF coaxial connectors, are components used for the electrical connection or disconnection of RF transmission lines. RF electrical connectors differ from ordinary electrical connectors in that they need to transmit both internal and external signals, thus requiring reliable transmission of both signals.

[0004] In certain applications, such as aerospace equipment, the vibration resistance of RF connectors is very important. Traditional RF connectors generally use a single pin and socket structure, which is prone to unstable contact due to external forces or other reasons, thereby affecting the transmission of circuit signals and causing signal failures.

[0005] In traditional electrical connectors, a flexible connection structure is used to form a floating electrical connector in order to improve vibration resistance. However, this structure is generally designed for single-channel signal transmission and is difficult to apply directly to radio frequency electrical connectors that transmit both internal and external signals. Moreover, even if it is used in radio frequency electrical connectors, the floating vibration resistance function between the pins and sockets is only achieved axially using elastic elements. Under harsh conditions or when the elastic elements fail, poor contact may still occur between the pins and sockets, which may lead to circuit failure and make it difficult to further improve the reliability of electrical transmission. Summary of the Invention

[0006] The purpose of this invention is to provide a highly reliable floating vibration-resistant radio frequency electrical connector that achieves double protection of contact reliability in both the axial and radial directions in order to solve the above-mentioned problems.

[0007] The present invention achieves the above objectives through the following technical solutions: A high-reliability floating vibration-resistant radio frequency electrical connector includes a plug and a socket. The front ends of the plug and the front ends of the socket are connected to each other. The plug includes a plug housing, a pin housing, and a pin. The pin housing is located inside the plug housing and a plug insulator is provided between the two. The pin is located inside the pin housing and a pin insulator is provided between the two. The socket includes a socket housing, a socket housing, and a socket. The socket housing is located inside the socket housing and a socket insulator is provided between the two. The socket is located inside the socket housing and a socket insulator is provided between the two. The front end of the plug housing is connected to the front end of the socket housing. The pin housing includes a front fixed pin housing, a rear fixed pin housing, and a moving pin housing. The rear part of the cylindrical front fixed pin housing is connected to the front part of the cylindrical rear fixed pin housing. The cylindrical moving pin housing is placed inside the front fixed pin housing. The inner circumferential wall of the front fixed pin housing has an annular groove and the pin crown spring is placed in the annular groove. The inner circumferential wall of the rear fixed pin housing has a pin housing protrusion. The rear end of the moving pin housing is connected to the pin housing protrusion. A pin compression spring is provided between the front ends of the rings; the front end of the moving pin housing is in close contact with the front end of the socket housing, and the front part of the socket housing is placed inside the front fixed pin housing with its outer wall in close contact with the inner wall of the pin crown spring; the socket includes a rear fixed socket contact, a front fixed socket contact, and a moving socket contact, the rear part of the cylindrical front fixed socket contact is connected to the front part of the rear fixed socket contact, the moving socket contact is placed inside the front fixed socket contact, the inner circumferential wall of the front fixed socket contact is provided with an annular groove, and the first socket crown spring is placed in this ring. Inside the slot, the front end of the moving contact of the insertion hole is provided with a coaxial front blind hole, and the circumferential wall of the front blind hole is provided with an annular groove, and the second insertion hole crown spring is placed in the annular groove. An insertion hole compression spring is provided between the rear part of the moving contact of the insertion hole and the front part of the rear fixed contact of the insertion hole. The outer diameter of the front section of the insertion pin is reduced to form a small diameter section of the insertion pin. The small diameter section of the insertion pin is placed in the front blind hole of the moving contact of the insertion hole, and its outer wall is in close contact with the inner wall of the second insertion hole crown spring. The front part of the insertion pin is placed in the front fixed contact of the insertion hole, and its outer wall is in close contact with the inner wall of the first insertion hole crown spring.

[0008] Preferably, to further improve the reliability of the electrical connection between the pin and the socket, the rear part of the socket moving contact is provided with a coaxial rear blind hole and the outer wall of the rear blind hole is provided with a socket protrusion ring. The circumferential wall of the rear blind hole of the socket moving contact is provided with an annular groove and the third socket crown spring is placed in the annular groove. The outer diameter of the front section of the socket rear fixed contact is reduced to form a socket small diameter section. The socket small diameter section is placed in the rear blind hole of the socket moving contact and its outer wall is in close contact with the inner wall of the third socket crown spring. The front end of the socket compression spring is in close contact with the rear end of the socket protrusion ring. The rear end of the socket compression spring is in close contact with the stepped surface of the socket rear fixed contact near the socket small diameter section. The socket compression spring is sleeved on the rear part of the socket moving contact.

[0009] Preferably, in order to facilitate reliable connection between the plug and the socket, a connecting ring is fitted on the front outer part of the plug housing. The connecting ring has an internal thread, and the outer wall of the front part of the socket housing has an external thread to form a socket threaded section. The socket threaded section is placed inside the connecting ring and threadedly connected to the connecting ring, and the socket threaded section is also placed on the front outer part of the plug housing.

[0010] Preferably, in order to position the connecting ring to prevent it from detaching from the plug housing, a positioning protrusion is provided on the outer wall of the plug housing, and the rear end of the positioning protrusion contacts the annular step on the inner wall of the connecting ring and can prevent the connecting ring from detaching forward from the plug housing. The rear end of the connecting ring is connected to the outer wall of the plug housing through a wave spring, ratchet, ratchet wheel and retaining ring and can prevent the connecting ring from detaching backward from the plug housing.

[0011] Preferably, in order to facilitate soldering with radio frequency wires, the rear end of the pin is provided with a pin solder cup, and the rear end of the socket contact is provided with a socket solder cup.

[0012] Preferably, in order to reliably connect the front housing and the rear housing of the pin, the rear part of the front housing and the front part of the rear housing of the pin are riveted together.

[0013] Preferably, in order to reliably connect the front fixed contact and the rear fixed contact of the socket, the rear part of the front fixed contact is fitted over the front part of the rear fixed contact and in close contact.

[0014] Preferably, in order to improve the individual moisture-proof sealing performance of the socket and the internal sealing performance after the plug and socket are connected, an annular groove is provided in the inner wall of the fixed contact of the socket near the front end, and a moisture-proof sealing ring is installed in the annular groove. The moisture-proof sealing ring can make close contact with the front outer wall of the moving contact of the socket when the plug and socket are separated, and make close contact with the front outer wall of the pin when the plug and socket are connected.

[0015] Preferably, for ease of processing and assembly, the plug insulator includes a front plug insulator and a rear plug insulator that are in close contact with each other. The rear outer wall of the front plug insulator has a raised ring that is in close contact with a step on the inner wall of the plug housing. The front outer wall of the rear plug insulator has a raised ring that is in close contact with a plug plastic retaining ring installed on the inner wall of the plug housing. The socket insulator includes a front socket insulator and a rear socket insulator that are in close contact with each other. The front end of the front socket insulator is in close contact with a front socket plastic retaining ring installed on the inner wall of the socket housing. The front outer wall of the rear socket insulator has a raised ring that is in close contact with a rear socket plastic retaining ring installed on the inner wall of the socket housing.

[0016] The beneficial effects of this invention are as follows: This invention assembles a front fixed housing, a rear fixed housing, and a moving housing of the insert pin into a insert housing via an insert compression spring and an insert crown spring. The moving housing is then tightly connected to the socket housing, creating two reliable electrical connections between the insert housing and the socket housing: First connection: Rear fixed housing → Front fixed housing → Insert crown spring → Socket housing (radial floating anti-vibration function); Second connection: Rear fixed housing → Insert compression spring → Moving housing → Socket housing (axial floating anti-vibration function). The invention also assembles a rear fixed contact, a front fixed contact, and a moving contact into a socket via a socket compression spring and a socket crown spring. The moving contact is tightly connected to the insert pin, creating two reliable electrical connections between the insert pin and the socket housing. Electrical connection: First path: Pin → First socket crown spring → Front fixed contact of socket → Rear fixed contact of socket. This path has radial floating anti-vibration function. Second path: Pin → Second socket crown spring → Socket moving contact → Socket compression spring → Rear fixed contact of socket. This path has axial floating anti-vibration function, and also has radial floating anti-vibration function between the pin and the socket moving contact. Ultimately, both the internal and external signal transmission of the RF connector have axial floating anti-vibration function and radial floating anti-vibration function, achieving double protection of contact reliability in both axial and radial directions. This ensures that the RF connector maintains reliable contact between the pin and the socket even under harsh conditions or when the elastic element fails, significantly improving electrical transmission reliability and extending product life. In addition, by setting an inner and outer sleeve connection structure between the moving contact and the fixed contact of the socket and realizing a reliable radial floating anti-vibration function through the third socket crown spring, the contact reliability between the pin and the socket is further improved, ensuring that the most important core signal transmitted through the pin and the socket in the radio frequency signal will not be interrupted or weakened, laying a solid foundation for the stability of equipment in important fields such as aerospace. Attached Figure Description

[0017] Figure 1 This is a front sectional view of the plug of the high-reliability floating vibration-resistant radio frequency electrical connector described in this invention; Figure 2 This is a front sectional view of the socket of the high-reliability floating vibration-resistant radio frequency electrical connector described in this invention; Figure 3 This is a front sectional view of the assembled high-reliability floating vibration-resistant RF connector described in this invention; Figure 4 yes Figure 3 An enlarged view of the letter "A". Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-4As shown, the high-reliability floating vibration-resistant RF connector of the present invention includes a plug and a socket. The front end of the plug (the front end here is a custom orientation for ease of description, opposite to the front end of the socket) and the front end of the socket (the front end here is a custom orientation for ease of description, opposite to the front end of the plug) are connected to each other. The plug includes a plug housing 1, a pin housing (refer to the pin front fixed housing 16, pin rear fixed housing 2 and pin moving housing 15 below) and a pin 5. The pin housing is located inside the plug housing 1 and a plug insulator (refer to the plug front insulator 13 and plug rear insulator 6 below) is provided between the two. The pin 5 is located inside the pin housing and a pin insulator 4 is provided between the two. The socket includes a socket housing 23, a socket housing 19, and a socket (refer to the following description of the socket rear fixed contact 34, socket front fixed contact 25, and socket moving contact 26). The socket housing 19 is located inside the socket housing 23, and a socket insulator (refer to the following description of the socket front insulator 28 and socket rear insulator 29) is provided between the two. The socket is located inside the socket housing 19, and a socket insulator 32 is provided between the two. The front end of the plug housing 1 is connected to the front end of the socket housing 23. The pin housing includes a pin front fixed housing 16, a pin rear fixed housing 2, and a pin moving housing 15. The rear part of the cylindrical pin front fixed housing 16 is connected to the front part of the cylindrical pin rear fixed housing 2, and the cylindrical pin moving housing 15 is placed in the pin front fixed housing 16. Inside the 6th housing, the inner circumferential wall of the front fixed housing 16 of the pin is provided with an annular groove (not marked in the figure) and the pin crown spring 17 is placed in the annular groove. The inner circumferential wall of the rear fixed housing 2 of the pin is provided with a pin housing protrusion ring (not marked in the figure). A pin compression spring 14 is provided between the rear end of the moving housing 15 of the pin and the front end of the protrusion ring of the pin. The front end of the moving housing 15 of the pin is in close contact with the front end of the socket housing 19. The front part of the socket housing 19 is placed inside the front fixed housing 16 of the pin and its outer wall is in close contact with the inner wall of the pin crown spring 17. The socket includes a rear fixed contact 34, a front fixed contact 25 of the socket, and a moving contact 26 of the socket. The rear part of the cylindrical front fixed contact 25 of the socket is connected to the front part of the rear fixed contact 34 of the socket, and the moving contact 26 of the socket is connected to the rear fixed contact 34 of the socket. The first socket crown spring 24 (the shape of the first socket crown spring 24 is not very clear in the figure, but its structure can be referred to as the clearly shaped pin crown spring 17 in the figure) is placed in the annular groove. The front end of the socket moving contact 26 is provided with a coaxial front blind hole (not marked in the figure), and the circumferential wall of the front blind hole is provided with an annular groove (not marked in the figure). The second socket crown spring 21 (the shape of the second socket crown spring 21 is not particularly clear in the figure, but its structure can be referred to as the clearly shaped pin crown spring 17 in the figure) is placed in the annular groove. A socket compression spring 31 is provided between the rear part of the socket moving contact 26 and the front part of the socket rear fixed contact 34.The outer diameter of the front section of the pin 5 is reduced to form a small-diameter section (not marked in the figure). This small-diameter section is placed inside the front blind hole of the moving contact 26 of the socket, and its outer wall is in close contact with the inner wall of the second socket crown spring 21. The front part of the pin 5 is placed inside the front fixed contact 25 of the socket, and its outer wall is in close contact with the inner wall of the first socket crown spring 24.

[0019] like Figures 1-4 As shown, the present invention also discloses the following more optimized specific structures: To further improve the reliability of the electrical connection between the pin 5 and the socket, the rear part of the socket moving contact 26 is provided with a coaxial rear blind hole (not marked in the figure), and the outer wall of the rear blind hole is provided with a socket protrusion ring (not marked in the figure). The circumferential wall of the rear blind hole of the socket moving contact 26 is provided with an annular groove (not marked in the figure), and the third socket crown spring 30 (the shape of the third socket crown spring 30 is not very clear in the figure, but its structure can be referred to the clearly shaped pin crown spring 17 in the figure) is placed Within the annular groove, the outer diameter of the front section of the fixed contact 34 after the insertion hole decreases to form the small diameter section 33 of the insertion hole. The small diameter section 33 of the insertion hole is placed in the rear blind hole of the moving contact 26 of the insertion hole, and its outer wall is in close contact with the inner wall of the third insertion hole crown spring 30. The front end of the insertion hole compression spring 31 is in close contact with the rear end of the insertion hole protrusion ring, and the rear end of the insertion hole compression spring 31 is in close contact with the stepped surface of the fixed contact 34 of the insertion hole near the small diameter section 33 of the insertion hole. The insertion hole compression spring 31 is fitted on the rear part of the moving contact 26 of the insertion hole.

[0020] To facilitate reliable connection between the plug and the socket, a connecting ring 12 is fitted on the front outer side of the plug housing 1. The connecting ring 12 has an internal thread. The outer wall of the front part of the socket housing 23 has an external thread to form a socket thread section 18. The socket thread section 18 is placed inside the connecting ring 12 and threadedly connected to the connecting ring 12. At the same time, the socket thread section 18 is placed on the front outer side of the plug housing 1.

[0021] In order to position the connecting ring 12 to prevent it from detaching from the plug housing 1, a positioning protrusion (not marked in the figure) is provided on the outer wall of the plug housing 1, and the rear end of the positioning protrusion contacts the annular step (not marked in the figure) on the inner wall of the connecting ring 12 and can prevent the connecting ring 12 from detaching from the plug housing 1 forward. The rear end of the connecting ring 12 is connected to the outer wall of the plug housing 1 through a wave spring 10, a ratchet 9, a ratchet 8 and a retaining ring 11 and can prevent the connecting ring 12 from detaching from the plug housing 1 backward.

[0022] To facilitate soldering with RF wires (not shown in the figure), the rear end of the pin 5 is provided with a pin solder cup 3, and the rear end of the socket contact 34 is provided with a socket solder cup 35.

[0023] To reliably connect the front retaining housing 16 and the rear retaining housing 2, the rear part of the front retaining housing 16 and the front part of the rear retaining housing 2 are riveted together.

[0024] In order to reliably connect the front fixed contact 25 and the rear fixed contact 34 of the socket, the rear part of the front fixed contact 25 is fitted over the front part of the rear fixed contact 34 and is in close contact.

[0025] To improve the individual moisture-proof sealing performance of the socket and the internal sealing performance after the plug and socket are connected, an annular groove (not marked in the figure) is provided in the inner wall of the socket front fixed contact 25 near the front end, and a moisture-proof sealing ring 20 is installed in the annular groove. The moisture-proof sealing ring 20 can make close contact with the front outer wall of the socket moving contact 26 when the plug and socket are separated, and make close contact with the front outer wall of the pin 5 when the plug and socket are connected.

[0026] For ease of processing and assembly, the plug insulator includes a front plug insulator 13 and a rear plug insulator 6 that are in close contact with each other. The rear outer wall of the front plug insulator 13 is provided with a raised ring (not marked in the figure), and the raised ring is in close contact with a step (not marked in the figure) on the inner wall of the plug housing 1. The front outer wall of the rear plug insulator 6 is provided with a raised ring (not marked in the figure), and the raised ring is in close contact with a plug plastic retaining ring 7 installed on the inner wall of the plug housing 1. The socket insulator includes a front socket insulator 28 and a rear socket insulator 29 that are in close contact with each other. The front end of the front socket insulator 28 is in close contact with a front socket plastic retaining ring 22 installed on the inner wall of the socket housing 23. The front outer wall of the rear socket insulator 29 is provided with a raised ring (not marked in the figure), and the raised ring is in close contact with a rear socket plastic retaining ring 27 installed on the inner wall of the socket housing 23.

[0027] like Figures 1-4As shown, in application, the radio frequency wires to be connected are soldered into the pin solder cup 3 and the socket solder cup 35 respectively. When connecting the plug and socket, the front ends of the plug and the front ends of the socket are aligned and brought close to each other. The socket threaded section 18 of the socket housing 23 is gradually fitted onto the front part of the plug housing 1 and placed inside the connecting ring 12. The connecting ring 12 is rotated to gradually tighten it with the socket threaded section 18. At the same time, the pin moving housing 15 gradually contacts and abuts against the socket housing 19. The socket housing 19 pushes the pin moving housing 15 to move and compress the pin compression spring 14. The pin compression spring 14 presses the pin back fixed housing 2. At the same time, the front end of the socket housing 19 enters the pin front fixed housing 16 and uses the conical surface of the pin crown spring 17 to squeeze the pin crown spring 17 to make it fit tightly. The pin 5 is installed on the front end of the socket housing 19. At the same time, the front end of the pin 5 gradually enters the front blind hole of the socket moving contact 26 and presses the second socket crown spring 21 to make it tightly fitted on the front end of the pin 5. Then the pin 5 pushes the socket moving contact 26 to move and compresses the socket compression spring 31. The socket compression spring 31 presses the socket rear fixed contact 34. At the same time, the front end of the pin 5 enters the front end of the socket front fixed contact 25 and makes tight contact with the moisture-proof sealing ring 20. The first socket crown spring 24 is pressed by the conical surface of the first socket crown spring 24 to make it tightly fitted on the front end of the pin 5. At the same time, the socket small diameter section 33 of the socket rear fixed contact 34 enters the rear blind hole of the socket moving contact 26 and presses the third socket crown spring 30 to make it tightly fitted on the small diameter section 33 of the socket.

[0028] After the above operations, the following two reliable electrical connections are formed between the pin housing and the socket housing 19: First path: Pin rear fixed housing 2 → Pin front fixed housing 16 → Pin crown spring 17 → Socket housing 19, this path has radial floating anti-vibration function; Second path: Pin rear fixed housing 2 → Pin compression spring 14 → Pin moving housing 15 → Socket housing 19, this path has axial floating anti-vibration function; The following two reliable electrical connections are formed between the pin 5 and the socket: First path: Pin 5 → First socket crown spring 24 → Socket front fixed contact 25 → Socket rear fixed contact 34, this path has radial floating anti-vibration function; Second path: Pin 5 → Second socket crown spring 21 → Socket moving contact 26 → Socket compression spring 31 → Socket rear fixed contact 34, the second path also includes the following enhanced electrical connection path: Socket moving contact 26 → First... The three-hole crown spring 30 → small diameter section of the socket 33 → rear fixed contact 34 of the socket, the second electrical connection path has axial floating anti-vibration function, and at the same time, radial floating anti-vibration function between the pin 5 and the moving contact 26 of the socket, and between the moving contact 26 of the socket and the rear fixed contact 34 of the socket; ultimately, both the internal and external signal transmission of the RF connector have axial floating anti-vibration function and radial floating anti-vibration function, achieving double insurance for contact reliability in both axial and radial directions, ensuring that the pin and socket still maintain reliable contact under harsh conditions or when the elastic element fails, ensuring that the most important core signal transmitted through the pin 5 and the socket in the RF signal will not be interrupted or weakened, significantly improving the reliability of electrical transmission, extending the product service life, and laying a solid foundation for the stability of equipment in important fields such as aerospace.

[0029] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the technical solutions of the present invention. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of the patent of the present invention.

Claims

1. A high-reliability floating vibration-resistant radio frequency electrical connector, comprising a plug and a socket, wherein the front ends of the plug and the front ends of the socket are connected to each other; the plug includes a plug housing, a pin housing, and a pin; the pin housing is located inside the plug housing and a plug insulator is provided between the two; the pin is located inside the pin housing and a pin insulator is provided between the two; the socket includes a socket housing, a socket housing, and a socket; the socket housing is located inside the socket housing and a socket insulator is provided between the two; the socket is located inside the socket housing and a socket insulator is provided between the two; the front end of the plug housing is connected to the front end of the socket housing; characterized in that: The pin housing includes a front fixed pin housing, a rear fixed pin housing, and a movable pin housing. The rear part of the cylindrical front fixed pin housing and the front part of the cylindrical rear fixed pin housing are connected. The cylindrical movable pin housing is placed inside the front fixed pin housing. The inner circumferential wall of the front fixed pin housing has an annular groove, and the pin crown spring is placed in the annular groove. The inner circumferential wall of the rear fixed pin housing has a pin housing protrusion ring. A pin compression spring is provided between the rear end of the movable pin housing and the front end of the pin housing protrusion ring. The front end of the movable pin housing is connected to the socket housing. The front end is in close contact with the socket housing, and the front part of the socket housing is placed inside the front fixed housing of the pin, with its outer wall in close contact with the inner wall of the pin crown spring. The socket includes a rear fixed contact, a front fixed contact, and a moving contact. The rear part of the cylindrical front fixed contact is connected to the front part of the rear fixed contact. The moving contact is placed inside the front fixed contact. The inner circumference of the front fixed contact is provided with an annular groove, and the first pin crown spring is placed in the annular groove. The front end of the moving contact is provided with a coaxial front blind hole, and the circumference of the front blind hole is... The hole wall has an annular groove and the second insertion hole crown spring is placed in the annular groove. An insertion hole compression spring is provided between the rear part of the insertion hole moving contact and the front part of the insertion hole rear fixed contact. The outer diameter of the front section of the insertion pin decreases to form a small-diameter section, which is placed in the front blind hole of the insertion hole moving contact and its outer wall is in close contact with the inner wall of the second insertion hole crown spring. The front part of the insertion pin is placed in the front fixed contact of the insertion hole and its outer wall is in close contact with the inner wall of the first insertion hole crown spring. The rear part of the insertion hole moving contact has a coaxial rear blind hole, and the outer wall of the rear blind hole has a... The socket protrusion ring has an annular groove on the circumferential wall of the rear blind hole of the socket moving contact, and the third socket crown spring is placed in the annular groove. The outer diameter of the front section of the socket rear fixed contact is reduced to form the socket small diameter section. The socket small diameter section is placed in the rear blind hole of the socket moving contact, and its outer wall is in close contact with the inner wall of the third socket crown spring. The front end of the socket compression spring is in close contact with the rear end of the socket protrusion ring, and the rear end of the socket compression spring is in close contact with the stepped surface of the socket rear fixed contact near the socket small diameter section. The socket compression spring is fitted on the rear part of the socket moving contact.

2. The high-reliability floating vibration-resistant RF connector according to claim 1, characterized in that: The front part of the plug housing is fitted with a connecting ring with an internal thread. The front outer wall of the socket housing is provided with an external thread to form a socket threaded section. The socket threaded section is placed inside the connecting ring and threadedly connected to the connecting ring, and the socket threaded section is also placed outside the front part of the plug housing.

3. The high-reliability floating vibration-resistant RF connector according to claim 2, characterized in that: The outer wall of the plug housing is provided with a positioning protrusion ring, and the rear end of the positioning protrusion ring contacts the annular step on the inner wall of the connecting ring and can prevent the connecting ring from detaching forward from the plug housing. The rear end of the connecting ring is connected to the outer wall of the plug housing through a wave spring, ratchet, ratchet wheel and retaining ring and can prevent the connecting ring from detaching backward from the plug housing.

4. The high-reliability floating vibration-resistant RF connector according to claim 1, characterized in that: The rear end of the pin is provided with a pin solder cup, and the rear end of the socket contact is provided with a socket solder cup.

5. The high-reliability floating vibration-resistant RF connector according to claim 1, characterized in that: The rear part of the front housing of the pin and the front part of the rear housing of the pin are riveted together.

6. The high-reliability floating vibration-resistant RF connector according to claim 1, characterized in that: The rear part of the front fixed contact of the socket is fitted outside the front part of the rear fixed contact of the socket and is in close contact with it.

7. The high-reliability floating vibration-resistant RF connector according to claim 1, characterized in that: The inner wall of the fixed contact of the socket is provided with an annular groove near the front end, and a moisture-proof sealing ring is installed in the annular groove. The moisture-proof sealing ring can make close contact with the front outer wall of the moving contact of the socket when the plug and the socket are separated, and make close contact with the front outer wall of the pin when the plug and the socket are connected.

8. The high-reliability floating vibration-resistant RF connector according to claim 1, characterized in that: The plug insulator includes a front plug insulator and a rear plug insulator that are in close contact with each other. The rear outer wall of the front plug insulator has a raised ring that is in close contact with a step on the inner wall of the plug housing. The front outer wall of the rear plug insulator has a raised ring that is in close contact with a plug plastic retaining ring installed on the inner wall of the plug housing. The socket insulator includes a front socket insulator and a rear socket insulator that are in close contact with each other. The front end of the front socket insulator is in close contact with a front socket plastic retaining ring installed on the inner wall of the socket housing. The front outer wall of the rear socket insulator has a raised ring that is in close contact with a rear socket plastic retaining ring installed on the inner wall of the socket housing.

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