Light radio frequency connector with high shielding performance

Abstract

The invention relates to the technical field of radio-frequency connectors, in particular to a light radio-frequency connector with high shielding performance, which comprises a radio-frequency plug and a radio-frequency socket, and is characterized in that the radio-frequency plug comprises a shell, a shielding ring, a coupling nut assembly, a positioning pin, a rear cover, a square clamp spring, a clamp spring, a clamping jaw, a radio-frequency jack and a wire sealing body. According to the light radio frequency connector with the high shielding performance, an integrated hole cavity structure of the shell and the square plate shell is matched with the shielding ring, so that multiple shielding protection is formed, external electromagnetic interference and internal signal leakage are reduced, signal transmission distortion is avoided, the light radio frequency connector is adaptive to a high-anti-interference requirement scene, and the signal transmission stability is guaranteed; light weight and connection sealing performance are optimized, structural design is simplified, positioning keys and positioning key grooves for precise positioning are matched, misinsertion and connection loosening are avoided, and use stability is improved; the sealing ring, the wire sealing body and other structures enhance the sealing effect, prevent dust and water vapor from invading, prolong the service life and adapt to complex environments.

Description

Technical Field

[0001] This invention relates to the field of radio frequency connector technology, and in particular to a lightweight radio frequency connector with high shielding performance. Background Technology

[0002] With the rapid development of communication technology, industrial automation, and explosion-proof equipment, radio frequency (RF) signals, as the core transmission carrier, are increasingly demanding higher requirements for transmission stability, anti-interference capabilities, and lightweight equipment. As a key interface component for signal transmission, RF connectors must simultaneously meet four core requirements: high shielding performance, lightweight design, reliable connection, and sealed protection, in order to adapt to signal transmission needs under complex operating conditions.

[0003] However, existing RF connectors have significant technical shortcomings: on the one hand, the shielding structure design of traditional RF connectors is imperfect, making them susceptible to interference from external electromagnetic signals. At the same time, internal signals are prone to leakage, leading to signal transmission distortion and making them unsuitable for scenarios with high anti-interference requirements. On the other hand, some connectors have high design redundancy to ensure structural strength, lacking lightweight optimization, and have insufficient connection positioning accuracy, which can easily lead to problems such as mis-insertion and loose connection during mating, affecting the stability of use. In addition, poor sealing performance allows external dust and moisture to easily penetrate internal components, shortening the lifespan of the connector and making it difficult to meet the needs of use in complex environments such as explosion-proof and outdoor applications. Summary of the Invention

[0004] The main objective of this invention is to provide a lightweight radio frequency connector with high shielding performance, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A lightweight radio frequency connector with high shielding performance includes a radio frequency plug and a radio frequency socket. The radio frequency plug includes a housing, a shielding ring, a connecting nut assembly, a positioning pin 1, a back cover 1, a square retaining ring 1, a retaining ring, a retaining claw 1, a radio frequency socket, and a sealing body 1.

[0006] The main body of the housing is cylindrical, with a positioning key and a socket cavity adapted to the RF jack at its mating end. The RF jack is fixed in the socket cavity by a claw 1. The tail end is fixed to the cavity at the tail end of the housing by a sealing body 1 and a rear cover 1. The sealing body 1 has a protruding structure 1. The connecting nut assembly is axially fixed to the outer periphery of the mating end of the housing by a snap ring. A shielding ring is disposed between the housing and the connecting nut assembly. The rear cover 1 is fixed by a square snap ring 1 and a positioning pin 1. The RF socket includes a square housing, a sealing ring, an interface sealing body, and a positioning pin. 2. Rear cover 2, square retaining spring 2, retaining claw 2, RF pin, sealing body 2. The mating end of the square housing is provided with a positioning keyway and a pin hole cavity adapted to the positioning key. The RF pin is fixed in the pin hole cavity by the retaining claw 2. The tail end is fixed by the sealing body 2 and the rear cover 2. The sealing body 2 is provided with a protruding structure 2. The cavity at the mating end of the square housing is provided with a sealing ring and an interface sealing body. The rear cover 2 is fixed by the square retaining spring 2 and the positioning pin 2. The RF plug and the RF socket are connected by a threaded connection nut assembly. The RF socket is inserted into the RF pin.

[0007] Preferably, the inner ring surface of the RF jack docking end is provided with a circular cavity structure, and the outer ring surface of the RF jack docking end is provided with a circular slot structure, wherein the circular slot structure is embedded in the circular cavity structure in the mating state.

[0008] The above solution involves embedding a circular slotted structure into a circular cavity structure, enabling 360-degree conduction between the RF jack and the RF pin, thus solving the signal distortion problem caused by insufficient coaxiality and improving the stability of RF signal transmission.

[0009] Preferably, the connecting nut assembly includes a connecting nut, a spring claw, and a rivet, with the spring claw fixed to the connecting nut by the rivet.

[0010] The above solution involves fixing the spring claw to the connecting nut with rivets, forming a stable connecting nut assembly. The spring claw acts as a tight fixation device to prevent the connection from loosening and ensure the reliability of the connector after mating.

[0011] Preferably, the connecting nut assembly has an internal thread, and the mating end of the square disc housing has a matching external thread, wherein the internal thread and the external thread are double-ended threads.

[0012] The above solution, with its double-ended internal and external threads, enables quick connection between the RF plug and the RF socket, while also providing anti-loosening functionality, simplifying the operation process and improving assembly efficiency.

[0013] Preferably, there are five positioning keys and five positioning key slots, and they are matched one-to-one.

[0014] The above solution ensures that the five positioning keys are matched with the positioning key slots one by one, improving the connector mating positioning accuracy, effectively avoiding mis-mating, and guaranteeing connection accuracy and safety of use.

[0015] Preferably, the back cover 1 and the sealing body 1, and the back cover 2 and the sealing body 2 are respectively fixed by adhesive bonding.

[0016] The above solution involves bonding the back cover and the sealing body together to enhance the sealing of the connection, prevent dust and moisture from entering, protect internal components, and extend the service life of the connector.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, the reliability of shielding and signal transmission is improved by using an integrated cavity structure of the shell and the square shell in conjunction with a shielding ring to form multiple shielding protections, reducing external electromagnetic interference and internal signal leakage, avoiding signal transmission distortion, adapting to high anti-interference requirements, and ensuring signal transmission stability.

[0018] 2. In this invention, lightweight design and connection sealing performance are optimized, the structural design is simplified, and the positioning key and positioning keyway are used to prevent mis-insertion and loose connection, thereby improving the stability of use; the sealing ring, sealing line body and other structures enhance the sealing effect, prevent dust and moisture from entering, extend service life and adapt to complex environments. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the overall structure of the present invention; Figure 2 A schematic diagram of the assembly of the positioning keyway and the pin hole cavity; Figure 3 This is a schematic diagram showing the RF jack of a lightweight RF connector with high shielding performance according to the present invention. Figure 4 This is a schematic diagram showing the disassembled RF pins of a lightweight RF connector with high shielding performance according to the present invention.

[0020] In the diagram: 1. Housing; 1-1. Locating key; 1-2. Insertion hole cavity; 2. Shielding ring; 3. Connecting nut assembly; 4. Locating pin 1; 5. Rear cover 1; 6. Square retaining ring 1; 7. Retaining ring 1; 8. Claw 1; 9. RF insertion hole; 9-1. Circular cavity structure; 10. Sealing body 1; 10-1. Protrusion structure 1; 11. Square housing; 11-1. Locating keyway; 11-2. Insertion pin cavity; 12. Sealing ring; 13. Interface sealing body; 14. Locating pin 2; 15. Rear cover 2; 16. Square retaining ring 2; 17. Claw 2; 18. RF insertion pin; 18-1. Circular slotted structure; 19. Sealing body 2; 19-1. Protrusion structure 2. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Please see Figure 1-4 The present invention provides a technical solution: A lightweight radio frequency connector with high shielding performance includes a radio frequency plug and a radio frequency socket, characterized in that: the radio frequency plug includes a housing 1, a shielding ring 2, a connecting nut assembly 3, a positioning pin 14, a back cover 15, a square retaining ring 16, a retaining ring 7, a retaining claw 18, a radio frequency socket 9, and a sealing body 110.

[0025] In this embodiment, the main body of the housing 1 is cylindrical, and its mating end is provided with a positioning key 1-1 and a socket cavity 1-2 adapted to the RF socket 9. The RF socket 9 is fixed in the socket cavity 1-2 by a claw 18. The tail end is fixed to the tail end cavity of the housing 1 by a sealing body 110 and a rear cover 15. The sealing body 110 is provided with a protruding structure 110-1. The connecting nut assembly 3 is axially fixed to the outer periphery of the mating end of the housing 1 by a snap ring 7. The shielding ring 2 is provided between the housing 1 and the connecting nut assembly 3. The rear cover 15 is fixed by a square snap ring 16 and a positioning pin 14. The RF socket includes a square housing 11, a sealing ring 12, an interface sealing body 13, a positioning pin 214, and a rear cover 215. The square retaining spring 216, retaining claw 217, RF pin 18, and sealing body 219 are provided. The mating end of the square housing 11 is provided with a positioning keyway 11-1 and a pin hole cavity 11-2 that are adapted to the positioning key 1-1. The RF pin 18 is fixed in the pin hole cavity 11-2 by the retaining claw 217. The tail end is fixed by the sealing body 219 and the rear cover 215. The sealing body 219 is provided with a protruding structure 219-1. The cavity at the mating end of the square housing 11 is provided with a sealing ring 12 and an interface sealing body 13. The rear cover 215 is fixed by the square retaining spring 216 and the positioning pin 214. The RF plug and the RF socket are connected by a threaded connection nut assembly 3. The RF socket 9 is inserted into the RF pin 18.

[0026] Through the above scheme: the housing 1 serves as the core supporting structure for the RF plug, with its positioning key 1-1 precisely matching the positioning keyway 11-1 of the square housing 11, achieving positioning and docking of the plug and socket. The RF jack 9 is fixed to the jack cavity 1-2 by the claw 18, and the RF pin 18 is fixed to the pin cavity 11-2 by the claw 217; the two are inserted to achieve signal transmission. The connecting nut assembly 3 is axially fixed by the retaining spring 7, and the threaded connection locks the plug and socket; the shielding ring 2 enhances the shielding effect. The protruding structure of the sealing body, the sealing ring 12, and the interface sealing body 13 ensure sealing; the rear cover is fixed by the square retaining spring and the positioning pin. All components work together to achieve stable transmission and protection.

[0027] In this embodiment, the inner ring surface of the RF jack 9 is provided with a circular cavity structure 9-1, and the outer ring surface of the RF pin 18 is provided with a circular slotted structure 18-1. In the mating state, the circular slotted structure 18-1 is embedded in the circular cavity structure 9-1. The connecting nut assembly 3 includes a connecting nut, a spring claw, and a rivet. The spring claw is fixed to the connecting nut by the rivet. The connecting nut assembly 3 is provided with an internal thread, and the mating end of the square housing 11 is provided with an external thread that matches it. The internal thread and the external thread are double-ended threads. There are five positioning keys 1-1 and five positioning keyways 11-1, and they are matched one-to-one. The rear cover 15 and the sealing body 110, and the rear cover 215 and the sealing body 219 are respectively fixed by adhesive bonding.

[0028] Through the above scheme: the five positioning keys 1-1 are matched one-to-one with the positioning keyway 11-1, achieving precise positioning of the RF plug and socket to prevent mis-insertion. The double-ended internal thread of the connecting nut assembly 3 engages with the external thread of the square housing 11, quickly locking the two together. The spring claw is fixed to the connecting nut by a rivet, providing a tight and secure position to prevent loosening. During insertion, the circular slotted structure 18-1 of the RF pin 18 is embedded in the circular cavity structure 9-1 of the RF socket 9, ensuring stable signal transmission. The rear cover 15 and rear cover 215 are respectively bonded and fixed to the sealing body 110 and sealing body 219, enhancing the sealing and protection effect. All components work together to ensure reliable connection.

[0029] It should be noted that this invention is a lightweight RF connector with high shielding performance. During use, the RF jack 9 is first fixed to the jack cavity 1-2 of the housing 1 using the claw 18, and its tail end is fixed by the sealing body 110 and the rear cover 15. Then, the rear cover 15 is fixed by the square retaining spring 16 and the positioning pin 14, and the connecting nut assembly 3 is axially fixed to the outer periphery of the housing 1 using the retaining spring 7. The shielding ring 2 is placed between the two, completing the RF plug assembly. Subsequently, the RF pin 18 is connected by the claw... The claw 217 is fixed to the pin hole cavity 11-2 of the square housing 11, and the tail end is fixed by the sealing body 219 and the rear cover 215. The rear cover 215 is fixed by the square snap ring 216 and the positioning pin 214. The sealing ring 12 and the interface sealing body 13 are assembled to complete the RF socket assembly. Finally, the five positioning keys 1-1 are aligned with the positioning keyway 11-1, so that the circular slotted structure 18-1 is embedded into the circular cavity structure 9-1. The double-ended thread of the connecting nut assembly 3 is used to lock the signal and achieve stable signal transmission.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A high shielding performance, lightweight RF connector comprising an RF plug and an RF jack, characterized in that: The radio frequency plug comprises a shell (1), a shielding ring (2), a connecting nut assembly (3), a positioning pin 1 (4), a rear cover 1 (5), a square clamp spring 1 (6), a clamp spring (7), a jaw 1 (8), a radio frequency jack (9), a sealing body 1 (10); The shell (1) is cylindrical in shape, and the butt joint end is provided with a positioning key (1-1) and a jack hole cavity (1-2) adapted to the radio frequency jack (9), the radio frequency jack (9) is fixed in the jack hole cavity (1-2) through the jaw 1 (8), the tail end is fixed in the tail end cavity of the shell (1) through the sealing body 1 (10) and the rear cover 1 (5), the sealing body 1 (10) is provided with a protruding structure 1 (10-1), the connecting nut assembly (3) is axially fixed to the outer periphery of the butt joint end of the shell (1) through the clamp spring (7), the shielding ring (2) is arranged between the shell (1) and the connecting nut assembly (3), and the rear cover 1 (5) is fixed through the square clamp spring 1 (6) and the positioning pin 1 (4), the radio frequency socket comprises a square disc shell (11), a sealing ring (12), an interface sealing body (13), a positioning pin 2 (14), a rear cover 2 (15), a square clamp spring 2 (16), a jaw 2 (17), a radio frequency pin (18), a sealing body 2 (19), the butt joint end of the square disc shell (11) is provided with a positioning key groove (11-1) adapted to the positioning key (1-1) and a pin hole cavity (11-2), the radio frequency pin (18) is fixed in the pin hole cavity (11-2) through the jaw 2 (17), and the tail end is fixed through the sealing body 2 (19) and the rear cover 2 (15); the sealing body 2 (19) is provided with a protruding structure 2 (19-1), the butt joint end cavity of the square disc shell (11) is provided with the sealing ring (12) and the interface sealing body (13), the rear cover 2 (15) is fixed through the square clamp spring 2 (16) and the positioning pin 2 (14), the radio frequency plug and the radio frequency socket are threadedly connected through the connecting nut assembly (3), and the radio frequency jack (9) and the radio frequency pin (18) are inserted together.

2. A high shielding performance, lightweight RF connector as claimed in claim 1, characterised in that: The butt joint end inner ring surface of the radio frequency jack (9) is provided with a circular cavity structure (9-1), the butt joint end outer ring surface of the radio frequency pin (18) is provided with a circular split groove structure (18-1), and the circular split groove structure (18-1) is embedded in the circular cavity structure (9-1) in the inserted state.

3. A high shielding performance, lightweight RF connector as recited in claim 1, characterized by: The connecting nut assembly (3) comprises a connecting nut, a spring jaw and a rivet, and the spring jaw is fixed to the connecting nut through the rivet.

4. A high shielding performance, lightweight RF connector as recited in claim 1, characterized by: The connecting nut assembly (3) is provided with an internal thread, and the butt joint end of the square disc shell (11) is provided with an external thread adapted thereto, and the internal thread and the external thread are double-headed threads.

5. A high shielding performance, lightweight RF connector as recited in claim 1, characterized by: The number of the positioning key (1-1) and the positioning key groove (11-1) is five, and they are one-to-one corresponding and adapted.

6. A high shielding performance, lightweight RF connector as recited in claim 1, characterized by: The rear cover 1 (5) and the sealing body 1 (10), and the rear cover 2 (15) and the sealing body 2 (19) are respectively fixed through adhesive cooperation.

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