A high-efficiency radio frequency connector
Patent Information
- Application Number
- CN202522280578.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-28
AI Technical Summary
[0003]目前主流的射频连接器的连接方式大多是螺纹连接,传统螺纹连接通过内外螺纹咬合实现固定,虽能提供稳固的机械支撑与良好的高频性能,可适应 18GHz 以上的高频传输需求,但拆装过程需多次旋转操作,在高密度集成场景中因操作空间受限导致效率极低,且频繁旋转易造成螺纹磨损,影响连接可靠性
1、本实用新型通过压缩弹簧与锁定柱的自动锁定结构,对接时仅需沿轴向推动插座,使其插入对接槽并触发锁定柱自动卡入锁定孔,无需额外旋转或按压操作;拆卸时仅需借助工具拉动锁定柱端部的拉孔,即可快速脱出锁定孔,整个拆装过程可在数秒内完成;
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Figure CN224790061U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a radio frequency connector that is highly efficient in assembly and disassembly. Background Technology
[0002] As an electromechanical integrated product, RF connectors are key components in RF signal transmission links, enabling circuit connections and disconnections. They are widely used in communications, radar, test and measurement, aerospace, and the Internet of Things (IoT). RF connectors have undergone multiple generations of development, forming a product system covering N-type, BNC, SMA, SMP, and other series. Their technological evolution has consistently revolved around the requirements of higher frequency, miniaturization, lighter weight, and higher reliability.
[0003] Currently, most mainstream RF connectors use threaded connections. Traditional threaded connections achieve fixation through the interlocking of internal and external threads. While this provides robust mechanical support and good high-frequency performance, and can meet the high-frequency transmission requirements above 18GHz, the assembly and disassembly process requires multiple rotation operations. In high-density integration scenarios, the limited operating space leads to extremely low efficiency, and frequent rotation can easily cause thread wear, affecting connection reliability.
[0004] Therefore, it is necessary to invent a radio frequency connector that is highly efficient in assembly and disassembly to solve the above problems. Utility Model Content
[0005] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes a highly efficient RF connector that can be quickly installed and disassembled.
[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a highly efficient RF connector, comprising a plug and a socket of the RF connector, wherein the plug is provided with a mating sleeve, and the socket is mated and installed on one side of the mating sleeve; A mating groove is provided between the mating sleeve and the outer wall of the plug, and the socket is installed in the mating groove accordingly. The outer wall of the socket is provided with multiple mounting surfaces, and each mounting surface is provided with a locking hole. The outer wall of the mating sleeve is provided with multiple locking components that match the locking holes. The locking assembly includes a locking pin disposed in a telescopic hole on the outer wall of the docking sleeve. One end of the locking pin is inserted into the locking hole, and the other end of the locking pin extends to the outside of the telescopic hole. A compression spring is provided on the outer wall of the locking pin placed in the telescopic hole, and the compression spring locks the end of the locking pin in the locking hole.
[0007] Preferably, the outer wall end of the plug is further provided with a positioning ring. The positioning ring is disposed at the end of the plug and its size is smaller than that of the outer wall of the plug. Both the positioning ring and the outer wall of the plug are provided with positioning surfaces that match the inner wall of the socket. The outer wall of the mating sleeve is provided with an unlocking surface, and the telescopic hole is disposed on the unlocking surface.
[0008] Preferably, limiting rings are provided on both the inner and outer sides of the telescopic hole, and a retaining ring matching the limiting ring is provided on the outer wall of the locking post. The compression spring is installed between the retaining ring and the limiting ring, and the end of the locking post extends to the outside of the telescopic hole. The end of the locking post is provided with a pull hole, and the other end of the locking post is placed inside the locking hole.
[0009] Preferably, the dimensions of the mating groove match the dimensions of the outer wall of the socket, and the depth of the mating groove satisfies the connection between the locking hole and the telescopic hole.
[0010] Preferably, the length of the mounting plane does not exceed the depth of the mating groove.
[0011] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are: 1. This utility model uses an automatic locking structure of compression spring and locking post. When docking, you only need to push the socket along the axis to insert it into the docking groove and trigger the locking post to automatically lock into the locking hole. No additional rotation or pressing operation is required. When disassembling, you only need to use a tool to pull the pull hole at the end of the locking post to quickly disengage it from the locking hole. The entire disassembly and assembly process can be completed in a few seconds. 2. The positioning ring at the end of the outer wall of the plug of this utility model is set together with the outer wall of the plug to match the positioning surface of the inner wall of the socket. When the socket is inserted, the inner wall first fits against the positioning ring for guidance, and then accurately aligns with the positioning surface of the outer wall of the plug. This is far superior to the traditional non-positioning structure, effectively reducing the attenuation and reflection problems in the process of radio frequency signal transmission and ensuring the stability of signal transmission. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0013] Figure 1 This is a schematic diagram of the overall disassembled structure of this utility model; Figure 2 This is a schematic diagram of the overall connection structure of this utility model; Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model from another perspective; Figure 4This is a schematic diagram of the disassembled structure of the locking component of this utility model.
[0014] Explanation of reference numerals in the attached figures: 1. Plug; 11. Positioning ring; 2. Socket; 21. Mounting plane; 22. Locking hole; 3. Connecting sleeve; 31. Connecting groove; 32. Telescopic hole; 33. Unlocking surface; 34. Limiting ring; 4. Locking assembly; 41. Locking post; 42. Compression spring; 43. Retaining ring; 44. Pull hole; 5. Positioning surface. Detailed Implementation
[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0016] This utility model provides, for example Figure 1-4 The present invention relates to a highly efficient RF connector, comprising a plug 1 and a socket 2, wherein the plug 1 is provided with a mating sleeve 3, and the socket 2 is mated and installed on one side of the mating sleeve 3. Specifically, a mating groove 31 is provided between the mating sleeve 3 and the outer wall of the plug 1, and the socket 2 is installed in the mating groove 31. Specifically, the outer wall of the socket 2 is provided with multiple mounting surfaces 21, and the multiple mounting surfaces 21 are provided with locking holes 22. The outer wall of the mating sleeve 3 is provided with multiple locking components 4 that match the locking holes 22. Specifically, the locking assembly 4 includes a locking pin 41 disposed in a telescopic hole 32 on the outer wall of the mating sleeve 3. The end of the locking pin 41 is inserted into the locking hole 22, and the other end of the locking pin 41 extends to the outside of the telescopic hole 32. A compression spring 42 is provided on the outer wall of the locking pin 41 placed in the telescopic hole 32. The compression spring 42 locks the end of the locking pin 41 in the locking hole 22.
[0017] Specifically, the outer wall end of the plug 1 is also provided with a positioning ring 11. The positioning ring 11 is located at the end of the plug 1 and its size is smaller than the outer wall size of the plug 1. The positioning ring 11 and the outer wall of the plug 1 are both provided with a positioning surface 5 that matches the inner wall of the socket 2. The outer wall of the mating sleeve 3 is provided with an unlocking surface 33, and the telescopic hole 32 is provided on the unlocking surface 33.
[0018] Specifically, limiting rings 34 are provided on both the inner and outer sides of the telescopic hole 32, and a retaining ring 43 matching the limiting ring 34 is provided on the outer wall of the locking post 41. A compression spring 42 is installed between the retaining ring 43 and the limiting ring 34, and the end of the locking post 41 extends to the outside of the telescopic hole 32. A pull hole 44 is provided at the end of the locking post 41, and the other end of the locking post 41 is placed in the locking hole 22.
[0019] Specifically, the dimensions of the mating groove 31 match the outer wall dimensions of the socket 2, and the depth of the mating groove 31 satisfies the mating of the locking hole 22 and the telescopic hole 32.
[0020] Specifically, the length of the mounting plane 21 does not exceed the depth of the mating groove 31.
[0021] In this embodiment, the plug 1, socket 2, and mating sleeve 3 of the RF connector are processed respectively. Among them, the outer wall end of the plug 1 is integrally formed with a positioning ring 11. The outer diameter of the positioning ring 11 must be strictly smaller than the outer diameter of the plug 1. The positioning surface 5 of the inner wall of the matching socket 2 is milled or ground on the outer circular surface of the positioning ring 11 and the outer wall surface of the plug 1 near the positioning ring 11 to ensure the subsequent mating accuracy.
[0022] Specifically, an annular mating groove 31 is milled axially on the inner wall of the mating sleeve 3. The inner diameter of the mating groove 31 must perfectly match the outer wall size of the socket 2. Simultaneously, the depth of the mating groove 31 must be precisely calculated to ensure that after the socket 2 is inserted into the mating groove 31, the locking hole 22 on the socket 2 can be perfectly aligned with the telescopic hole 32 on the mating sleeve 3. Furthermore, a flat unlocking surface 33 is machined on the outer wall of the mating sleeve 3. The telescopic hole 32 vertically penetrates the unlocking surface 33 and the side wall of the mating groove 31. Both ends of the telescopic hole 32 must be machined with annular limiting rings 34. The inner diameter of the limiting rings 34 is smaller than the middle diameter of the telescopic hole 32, used to subsequently limit the movement range of the locking pin 41.
[0023] Specifically, multiple mounting surfaces 21 are uniformly machined circumferentially on the outer wall of the socket 2. The length of the mounting surface 21 must be strictly controlled to not exceed the depth of the mating groove 31 to prevent the mounting surface 21 from exceeding the range of the mating groove 31 after the socket 2 is inserted, thus affecting the locking. A locking hole 22 is formed by vertically drilling on each mounting surface 21. The diameter of the locking hole 22 must match the end diameter of the locking pin 41 to ensure that the locking pin 41 can be smoothly inserted without significant shaking.
[0024] Specifically, a compression spring 42 is sleeved on the outer wall of the locking post 41, and a retaining ring 43 is fixed on the outer wall of the locking post 41 at the position corresponding to the compression spring 42. Then, the assembled locking post 41 is inserted into the telescopic hole 32 on the outside of the mating sleeve 3, so that the end of the locking post 41 passes through the limiting ring 34 inside the telescopic hole 32 until the retaining ring 43 contacts the limiting ring 34 on the outside of the telescopic hole 32. At this point, the compression spring 42 is in a slightly compressed state, continuously applying a pushing force towards the mating groove 31 to the locking post 41. Finally, a pull hole 44 is machined at the end of the locking post 41 extending to the outside of the mating sleeve 3. The pull hole 44 can be a round hole or a U-shaped hole, facilitating subsequent unlocking by pulling the locking post 41 with a tool.
[0025] Specifically, align the mating end of the socket 2 with the positioning ring 11 of the plug 1, so that the inner wall of the socket 2 fits against the positioning surface 5 of the positioning ring 11 and the outer wall of the plug 1. The guiding effect of the positioning surface 5 ensures the coaxiality of the socket 2 and the plug 1, preventing misalignment during subsequent mating. Push the socket 2 axially, gradually inserting it into the mating groove 31 of the mating sleeve 3. During insertion, the outer wall of the socket 2 will first contact the end of the locking pin 41, pushing the locking pin 41 outwards towards the telescopic hole 32, further compressing the compression spring 42. When the socket 2 is fully inserted into the mating groove 31, the locking hole 22 on the socket 2 is precisely aligned with the telescopic hole 32. At this point, the spring force of the compression spring 42 is released, pushing the end of the locking pin 41 quickly into the locking hole 22, completing the locking of the socket 2 and the mating sleeve 3, thus achieving a stable mating of the plug 1 and the socket 2.
[0026] Specifically, a tool is inserted into the pull hole 44 at the end of the locking pin 41, and the locking pin 41 is pulled outward from the mating sleeve 3, causing the end of the locking pin 41 to disengage from the locking hole 22 of the socket 2. At this time, the compression spring 42 is in a compressed state. While keeping the locking pin 41 unlocked, the socket 2 is pulled axially in the opposite direction, causing the socket 2 to disengage from the mating groove 31 of the mating sleeve 3 and the positioning ring 11 of the plug 1, completing the separation of the plug 1 and the socket 2. After releasing the locking pin 41, the compression spring 42 pushes the locking pin 41 back to its original position, awaiting the next mating.
[0027] In this embodiment, traditional RF connectors often use threaded or snap-fit connections. Threaded connections require multiple rotations to lock and unlock, while snap-fit connections may suffer from difficulties in disassembly and are prone to damage. This solution utilizes a locking structure of a compression spring and a locking post. During connection, simply pushing the socket 2 achieves automatic locking, and during disassembly, simply pulling the locking post 41 unlocks it, making it particularly suitable for scenarios requiring frequent disassembly and assembly. The locking post 41 of the locking assembly 4 has a pull hole 44 at its end, allowing for easy unlocking even in confined spaces using simple tools. This avoids the need for specialized disassembly tools or forceful removal required by traditional snap-fit connections, reducing operational difficulty and labor costs.
[0028] In this embodiment, a positioning ring 11 is provided on the outer wall of the plug 1, and both the positioning ring 11 and the outer wall of the plug 1 are provided with positioning surfaces 5. When the socket 2 is inserted, the positioning surfaces 5 guide and limit the coaxiality of the plug 1 and the socket 2, reducing signal attenuation and reflection caused by docking misalignment, and ensuring the stability of radio frequency signal transmission. The docking groove 31 and the outer wall of the socket 2 are precisely matched in size, and the locking holes 22 on the multiple mounting planes 21 correspond to the locking components 4 for locking, so that the socket 2 is subjected to a uniform radial locking force after docking, avoiding uneven force and loose connection caused by a single locking point. At the same time, the compression spring 42 continuously applies a pushing force to the locking post 41, which can effectively compensate for the small displacement caused by vibration and temperature changes, ensuring long-term stability of the locking state, and is suitable for vibration environments such as industrial equipment and vehicle communication.
[0029] In this embodiment, limiting rings 34 are provided on both the inner and outer sides of the telescopic hole 32, and a retaining ring 43 is provided on the outer wall of the locking post 41. The limiting rings 34 and the retaining ring 43 cooperate to strictly limit the movement range of the locking post 41, so as to prevent the locking post 41 from moving excessively, falling off or getting stuck in the telescopic hole 32, while protecting the compression spring 42 from being over-compressed and extending the fatigue life of the spring.
[0030] In this embodiment, the length of the mounting plane 21 does not exceed the depth of the mating groove 31, so that after the socket 2 is inserted, the mounting plane 21 is completely inside the mating groove 31, avoiding the mounting plane 21 from being exposed to the outside and being subject to collision and wear, thereby protecting the locking hole 22 from damage; the end of the locking post 41 and the locking hole 22 are in surface contact, which reduces local stress concentration, reduces the risk of deformation and damage to the locking post 41 or the locking hole 22 due to excessive force, and improves the structural reliability of the entire connector.
[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A highly efficient RF connector for assembly and disassembly, characterized in that: The device includes a plug (1) and a socket (2) for an RF connector. The plug (1) is provided with a mating sleeve (3) on its outside, and the socket (2) is mated and installed on one side of the mating sleeve (3). A docking groove (31) is provided between the docking sleeve (3) and the outer wall of the plug (1), and the socket (2) is installed in the docking groove (31). The socket (2) has multiple mounting surfaces (21) on its outer wall, and multiple mounting surfaces (21) have locking holes (22) in them. The mating sleeve (3) has multiple locking components (4) that match the locking holes (22) on its outer wall. The locking assembly (4) includes a locking pin (41) disposed in a telescopic hole (32) on the outer wall of the docking sleeve (3). The end of the locking pin (41) is inserted into the locking hole (22), and the other end of the locking pin (41) extends to the outside of the telescopic hole (32). The outer wall of the locking pin (41) is provided with a compression spring (42) placed in the telescopic hole (32). The compression spring (42) locks the end of the locking pin (41) in the locking hole (22).
2. The RF connector with high efficiency in assembly and disassembly according to claim 1, characterized in that: The outer wall end of the plug (1) is also provided with a positioning ring (11). The positioning ring (11) is located at the end of the plug (1) and its size is smaller than the outer wall size of the plug (1). The positioning ring (11) and the outer wall of the plug (1) are both provided with positioning surfaces (5) that match the inner wall of the socket (2). The outer wall of the mating sleeve (3) is provided with an unlocking surface (33). The telescopic hole (32) is located on the unlocking surface (33).
3. The RF connector with high efficiency in assembly and disassembly according to claim 1, characterized in that: Limiting rings (34) are provided on both the inner and outer sides of the telescopic hole (32). A retaining ring (43) matching the limiting ring (34) is provided on the outer wall of the locking post (41). The compression spring (42) is installed between the retaining ring (43) and the limiting ring (34). The end of the locking post (41) extends to the outside of the telescopic hole (32). A pull hole (44) is provided at the end of the locking post (41). The other end of the locking post (41) is placed in the locking hole (22).
4. The RF connector with high efficiency in assembly and disassembly according to claim 1, characterized in that: The dimensions of the docking groove (31) match the outer wall dimensions of the socket (2), and the depth of the docking groove (31) satisfies the docking of the locking hole (22) and the telescopic hole (32).
5. The RF connector with high efficiency in assembly and disassembly according to claim 1, characterized in that: The length of the mounting plane (21) does not exceed the depth of the docking groove (31).