An adjustable radio frequency mechanical switch

Abstract

The utility model discloses an adjustable radio frequency mechanical switch, include: casing, output interface, output interface set in the upper end of casing, switch subassembly, switch subassembly includes the mechanical movement subassembly in casing and the signal transmission subassembly in the lower extreme of casing, be provided with signal interface subassembly on signal transmission subassembly. The adjustable radio frequency mechanical switch of utility model design provides an adjustable radio frequency mechanical switch with on -line magnetic force compensation ability, realizes the dynamic, convenient adjustment to the drive magnetic force through the linkage structure of adjusting screw and permanent magnet, this design effectively solved the problem of the insufficient distance of moving spring piece, the poor contact and switch failure caused by the magnetic attenuation of magnet, component tolerance or wear.

Description

Technical Field

[0001] This utility model relates to a mechanical switch, specifically an adjustable radio frequency mechanical switch. Background Technology

[0002] Radio frequency (RF) coaxial mechanical switches are key components in communication systems, widely used due to their ease of operation and high power handling capabilities. Single-pole multiple-throw (SPMT) switches, a common type, require reliable switching between different RF channels. However, existing mechanical switches often face operational problems in practical use due to magnet attenuation, component wear, or assembly tolerances: insufficient downward movement of the moving spring prevents reliable contact with the signal interface, creating gaps that lead to signal path interruption (poor contact) or switching failure. This problem severely impacts equipment stability and communication quality. Existing solutions typically rely on enhancing initial magnetic force or precision manufacturing, which is costly and cannot compensate for magnetic attenuation in the later stages. Therefore, there is an urgent need for an RF mechanical switch structure with online magnetic force adjustment capabilities to ensure long-term contact reliability and solve these problems.

[0003] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0004] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide an adjustable radio frequency mechanical switch.

[0005] To achieve the above and other related objectives, the technical solution provided by this utility model is: an adjustable radio frequency mechanical switch, comprising: a housing; an output interface disposed at the upper end of the housing; and a switching assembly, the switching assembly including a mechanical motion component located within the housing and a signal transmission component located at the lower end of the housing, the mechanical motion component and the signal transmission component being connected by a locking screw; and a signal interface component disposed on the signal transmission component. This solution constructs the core framework of the adjustable radio frequency mechanical switch, clearly defining the layout of the housing, output interface, switching assembly (including the mechanical motion component and the signal transmission component), and signal interface component, laying a structural foundation for subsequent magnetic adjustment and reliable signal switching functions, with a compact and reasonable overall structure.

[0006] Furthermore, the mechanical motion component includes, from top to bottom, a PCB board, an upper partition, a lower partition, a first baffle, and a second baffle; a first stop post is provided between the PCB board and the upper partition; the first stop post is a metal stop post. Several adjusting screws are provided between the upper partition and the lower partition, each adjusting screw having a permanent magnet at its lower end; the PCB board has adjusting holes corresponding to each adjusting screw; a second stop post is provided between the lower partition and the first baffle; the second stop post is a plastic stop post. A third stop post and iron needles are provided between the first baffle and the second baffle, each iron needle having a coil sleeved on it. In this design, the mechanical motion component has a layered stacked structure, and the permanent magnets are moved up and down by adjusting the screws to achieve dynamic adjustment of the magnetic force.

[0007] Furthermore, the PCB board, first stop post, upper partition, lower partition, second stop post, and first baffle are connected by a first screw; a first nut is provided between the upper partition and the lower partition, and the first screw passes through the PCB board, first stop post, upper partition, first nut, lower partition, second stop post, and first baffle in sequence before being fastened to the second nut. This solution uses a through-type first screw and nut fastening method to firmly connect the PCB board, first stop post, upper partition, lower partition, second stop post, and first baffle into a single module. The first nut between the upper and lower partitions provides a support point, ensuring the rigidity and stability of the module structure, preventing component misalignment due to uneven force, and ensuring the accuracy of the magnetic force transmission path.

[0008] Furthermore, the upper and lower ends of the third stop post are both provided with internal threads along their axial direction. The upper and lower ends of the third stop post are respectively fastened to the first baffle and the second baffle by a second screw. In this solution, the second stop post is provided with internal threads at both ends, and is fastened to the first baffle and the second baffle by a second screw, which simplifies the assembly of the second stop post area and provides a stable connection point, ensuring that the positions of the relevant baffles are fixed when the iron needle moves, and maintaining the integrity of the structure.

[0009] Furthermore, the upper partition plate has a number of threaded holes equal to the number of adjusting screws, and each adjusting screw has an external thread adapted to the threaded hole. The adjusting screw is threadedly connected to the upper partition plate and moves up and down within the threaded hole by rotation. In this solution, the adjusting screw is connected to the upper partition plate through a threaded pair (threaded hole + external thread). By simply rotating the screw (e.g., with a screwdriver), the vertical position of the screw and the lower permanent magnet can be precisely controlled, enabling online and convenient adjustment of the distance between the permanent magnet and the iron needle (i.e., adjusting the magnetic force). This solves the problem of incomplete movement caused by insufficient magnetic force.

[0010] Furthermore, the adjusting screw is made of a ferromagnetic material; ferromagnetic materials have the property of being attracted by a magnet. The permanent magnet is sleeved on the lower end of the adjusting screw; the upper half of the permanent magnet is the N pole and the lower half is the S pole. This solution specifies that the adjusting screw is made of a ferromagnetic material to enhance the magnetic coupling between it and the permanent magnet, ensuring that the permanent magnet can move synchronously with the screw; it clarifies the polarity distribution of the permanent magnet (N on top, S on the bottom). When the iron needle is magnetized by the coil to become the S pole, it generates a strong repulsive force with the S pole at the lower end of the permanent magnet, driving the iron needle downward; conversely, if the iron needle is the N pole, it is attracted upward.

[0011] Furthermore, the iron needle is composed of a needle cap, a needle post, and a needle tip connected in sequence; the coil is sleeved on the needle post, and the coil has a start end and an end end. In this design, the iron needle adopts a three-section design of needle cap, needle post, and needle tip, with the coil precisely sleeved on the needle post. This structure facilitates the installation and positioning of the coil and the effective utilization of the magnetic field. The design of the needle cap and needle tip facilitates the transmission and guidance of force. The start end and end end of the coil are clearly defined, providing an electrical connection basis for magnetizing the iron needle (assigning S or N poles) by passing a control current through it.

[0012] Furthermore, the signal transmission component includes a fixed plate and a switch panel. Several movable springs are disposed between the fixed plate and the switch panel, with each movable spring evenly distributed around the center line of the fixed plate. The fixed plate has several push rods corresponding to the movable springs, each push rod fitted with a spring. Each push rod passes through the spring, the fixed plate, and the movable spring in sequence, and is connected to the switch panel. The fixed plate and the switch panel are connected by a third screw. This solution describes the core structure of the signal transmission component. The movable springs are evenly distributed around the center, forming the basis for multi-channel switching. When the iron needle presses down, it pushes the push rod to overcome the spring force, causing the movable springs to move downwards to connect the signal interface. When the iron needle moves upwards, the spring pushes the push rod and movable springs to reset and disconnect the connection. The spring provides a reliable reset force to ensure a stable disconnected state.

[0013] Furthermore, the movable spring is embedded in the switch panel; the movable spring has a central hole, and the cylinder at the end of the push rod is riveted to the movable spring through the central hole. In this design, the movable spring is embedded in the switch panel and fixed by the cylinder at the end of the push rod through the central hole. This structure ensures the precise positioning of the movable spring on the switch panel and achieves a rigid connection between the movable spring and the push rod through riveting, so that the movement of the iron needle / push rod can be accurately and synchronously transmitted to the movable spring, ensuring the reliability and consistency of its downward / upward movement.

[0014] Furthermore, the signal interface assembly includes a main signal interface and several sub-signal interfaces disposed on the fixed plate, with each sub-signal interface evenly distributed and arranged around the main signal interface. In this design, the fixed plate has a central main signal interface and multiple sub-signal interfaces evenly distributed around it. This layout corresponds one-to-one with the evenly distributed moving spring channels, resulting in a compact and reasonable structure. When the moving spring of a specific channel moves downward, reliable communication between the main signal interface and the sub-signal interface of that channel is achieved, completing the switching of the radio frequency signal path.

[0015] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: This invention presents an adjustable radio frequency mechanical switch with online magnetic force compensation capability. By adjusting the linkage structure between the screw and the permanent magnet, dynamic and convenient adjustment of the driving magnetic force is achieved. This design effectively solves the problems of insufficient downward movement distance of the moving spring, poor contact (causing gaps), and switch failure caused by magnet magnetic attenuation, component tolerances, or wear. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the mechanical switch of this utility model; Figure 2 This is a schematic diagram of the bottom structure of the mechanical switch of this utility model; Figure 3 This is a schematic diagram of the internal structure of the mechanical switch of this utility model; Figure 4 This is a schematic diagram of the overall structure of the mechanical motion component of this utility model; Figure 5 This is a schematic diagram of the exploded structure of the mechanical motion component of this utility model; Figure 6 This is an exploded view of the adjusting screw, permanent magnet and upper partition of this utility model; Figure 7 This is a cross-sectional view of the combined structure of the adjusting screw, permanent magnet and upper partition of this utility model; Figure 8 This is a schematic diagram of the third stop column structure of this utility model; Figure 9 This is a schematic diagram of the permanent magnet structure of this utility model; Figure 10 This is a schematic diagram of the iron needle structure of this utility model; Figure 11 This is a schematic diagram of the coil and iron needle mounting structure of this utility model; Figure 12 This is an exploded view of the signal transmission component of this utility model; Figure 13This is a schematic diagram of the exploded structure of the moving spring and push rod of this utility model; Figure 14 This is a schematic diagram of the assembly structure of the moving spring, push rod and fixing plate of this utility model; Figure 15 This is a schematic diagram of the present invention operating under normal conditions; Figure 16 This is a schematic diagram of the present invention operating under adverse conditions; Figure 17 This is a schematic diagram of the operation of this utility model after adjustment; Figure 18 This is an enlarged view of part A; Figure 19 This is an enlarged view of part B; In the attached diagrams above, 1 is the output interface; 2 is the housing; 3 is the switch assembly; 3A is the locking screw; 3.1 is the mechanical motion assembly; 3.1A is the PCB board; 3.1A1 is the adjustment hole; 3.1B is the first stop post; 3.1C is the first screw; 3.1D is the first nut; 3.1E is the lower partition; 3.1F is the second stop post; 3.1G is the first baffle; 3.1J is the second baffle; 3.1K is the second screw; 3.1S is the second nut; 3.11 is the iron needle; 3.11A is the needle cap; 3.11B is the needle post; 3.11C is the needle tip; 3.12 is the third stop post; 3.12A is the internal thread; 3 3.13 Coil; 3.13A Starting end; 3.13B Ending end; 3.14 Permanent magnet; 3.14A Upper half; 3.14B Lower half; 3.15 Adjusting screw; 3.15A External thread; 3.16 Upper partition; 3.16A Threaded hole; 3.2 Signal transmission assembly; 3.2A Third screw; 3.2C Fixing plate; 3.21 Push rod; 3.21A Cylindrical; 3.22 Moving spring; 3.22A Center hole; 3.2D Spring; 3.2F Switch panel; 4. Signal interface assembly; 4.1 Main signal interface; 4.2 Sub-signal interface. Detailed Implementation

[0017] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0018] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component 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 utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] Example: This embodiment provides an adjustable radio frequency mechanical switch, see appendix. Figure 1 Appendix Figure 2 and attached Figure 3As shown, the device includes: a housing 2; an output interface 1, which is located at the upper end of the housing 2; and a switching assembly 3, which includes a mechanical motion component 3.1 located inside the housing 2 and a signal transmission component 3.2 located at the lower end of the housing 2. The mechanical motion component 3.1 and the signal transmission component 3.2 are connected by a locking screw 3A. A signal interface component 4 is provided on the signal transmission component 3.2. The core framework of the adjustable radio frequency mechanical switch is constructed, clearly defining the layout of the housing 2, output interface 1, switching assembly 3 (including the mechanical motion component 3.1 and the signal transmission component 3.2), and signal interface component 4. This lays the structural foundation for subsequent magnetic adjustment and reliable signal switching functions, and the overall structure is compact and reasonable.

[0023] See appendix Figure 4 and attached Figure 5 As shown, the mechanical motion component 3.1 includes, from top to bottom, a PCB board 3.1A, an upper partition 3.16, a lower partition 3.1E, a first baffle 3.1G, and a second baffle 3.1J. A first stop post 3.1B is provided between the PCB board 3.1A and the upper partition 3.16; the first stop post 3.1B is a metal stop post. Several adjusting screws 3.15 are provided between the upper partition 3.16 and the lower partition 3.1E, and a permanent magnet 3.14 is provided at the lower end of each adjusting screw 3.15. The PCB board 3.1A has adjusting holes 3.1A1 corresponding to the adjusting screws 3.15 one by one. A second stop post 3.1F is provided between the lower partition 3.1E and the first baffle 3.1G; the second stop post 3.1F is a plastic stop post. A third stop post 3.12 and an iron needle 3.11 are arranged between the first baffle 3.1G and the second baffle 3.1J. Each iron needle 3.11 is fitted with a coil 3.13. The mechanical motion component 3.1 has a layered stacked structure. The permanent magnet 3.14 is moved up and down by adjusting the screw 3.15 to achieve dynamic adjustment of the magnetic force.

[0024] PCB board 3.1A, first stop post 3.1B, upper partition 3.16, lower partition 3.1E, second stop post 3.1F, and first partition 3.1G are connected by first screw 3.1C. A first nut 3.1D is provided between upper partition 3.16 and lower partition 3.1E. The first screw 3.1C passes through PCB board 3.1A, first stop post 3.1B, upper partition 3.16, first nut 3.1D, lower partition 3.1E, second stop post 3.1F, and first partition 3.1G in sequence and is then fastened to a second nut 3.1S. The through-type first screw 3.1C and nut fastening method firmly connects PCB board 3.1A, first stop post 3.1B, upper partition 3.16, lower partition 3.1E, second stop post 3.1F, and first partition 3.1G into a single module. The first nut 3.1D between the upper partition 3.16 and the lower partition 3.1E provides a support point to ensure the rigidity and stability of the module structure, prevent component misalignment due to uneven force, and ensure the accuracy of the magnetic force transmission path.

[0025] See appendix Figure 4 and attached Figure 8 As shown, the upper and lower ends of the third stop post 3.12 are both provided with internal threads 3.12A along its axial direction. The upper and lower ends of the third stop post 3.12 are respectively fastened to the first baffle 3.1G and the second baffle 3.1J by a second screw 3.1K. The second stop post 3.1F is provided with internal threads 3.12A at both ends, and is fastened to the first baffle 3.1G and the second baffle 3.1J by a second screw 3.1K, which simplifies the assembly of the second stop post 3.1F area and provides a stable connection point to ensure that the position of the relevant baffles is fixed when the iron needle 3.11 moves, thus maintaining the integrity of the structure.

[0026] See appendix Figure 6 and attached Figure 7 As shown, the upper partition 3.16 has an equal number of threaded holes 3.16A as the adjusting screws 3.15. The adjusting screws 3.15 have external threads 3.15A that are compatible with the threaded holes 3.16A. The adjusting screws 3.15 are threadedly connected to the upper partition 3.16 and move up and down within the threaded holes 3.16A by rotation. The adjusting screws 3.15 are connected to the upper partition 3.16 via a threaded pair (threaded hole 3.16A + external thread 3.15A). By simply rotating the screws (e.g., with a screwdriver), the vertical position of the screws and the lower permanent magnet 3.14 can be precisely controlled, enabling online and convenient adjustment of the distance between the permanent magnet 3.14 and the iron needle 3.11 (i.e., adjusting the magnetic force). This solves the problem of incomplete movement caused by insufficient magnetic force.

[0027] See appendix Figure 9As shown, the adjusting screw 3.15 is made of ferromagnetic material; ferromagnetic materials have the property of being attracted by magnets. A permanent magnet 3.14 is fitted onto the lower end of the adjusting screw 3.15; the upper half 3.14A of the permanent magnet 3.14 is the N pole, and the lower half 3.14B is the S pole. The material of the adjusting screw 3.15 is specified as ferromagnetic to enhance the magnetic coupling between it and the permanent magnet 3.14, ensuring that the permanent magnet 3.14 can move synchronously with the screw. The polarity distribution of the permanent magnet 3.14 (N on top, S on the bottom) is clearly defined. When the iron needle 3.11 is magnetized to the S pole by the coil 3.13, it generates a strong repulsive force with the S pole at the lower end of the permanent magnet 3.14, driving the iron needle 3.11 downwards; conversely, if the iron needle 3.11 is the N pole, it is attracted upwards.

[0028] See appendix Figure 10 and attached Figure 11 As shown, the iron needle 3.11 consists of a needle cap 3.11A, a needle post 3.11B, and a needle tip 3.11C connected in sequence. A coil 3.13 is fitted onto the needle post 3.11B, and the coil 3.13 has a starting end 3.13A and an ending end 3.13B. The iron needle 3.11 adopts a three-section design: needle cap 3.11A, needle post 3.11B, and needle tip 3.11C. The coil 3.13 is precisely fitted onto the needle post 3.11B. This structure facilitates the installation and positioning of the coil 3.13 and the effective utilization of the magnetic field. The design of the needle cap 3.11A and the needle tip 3.11C facilitates the transmission and guidance of force. The starting end 3.13A and the ending end 3.13B of the coil 3.13 are clearly defined, providing an electrical connection basis for applying a control current to magnetize the iron needle 3.11 (assigning it an S or N pole).

[0029] See appendix Figure 12 and attached Figure 14 As shown, the signal transmission component 3.2 includes a fixed plate 3.2C and a switch panel 3.2F. Several movable springs 3.22 are arranged between the fixed plate 3.2C and the switch panel 3.2F, and each movable spring 3.22 is evenly distributed around the center line of the fixed plate 3.2C. Several push rods 3.21 are arranged on the fixed plate 3.2C, each corresponding to a movable spring 3.22. A spring 3.2D is fitted on each push rod 3.21. The push rod 3.21 passes through the spring 3.2D, the fixed plate 3.2C, and the movable springs 3.22 in sequence and is connected to the switch panel 3.2F. The fixed plate 3.2C and the switch panel 3.2F are connected by a third screw 3.2A. The movable springs 3.22 are evenly distributed around the center, forming the basis for multi-channel switching; the iron needle 3.11 presses down to push the top rod 3.21 to overcome the force of the spring 3.2D, causing the movable springs 3.22 to move down to connect the signal interface; when the iron needle 3.11 moves up, the spring 3.2D pushes the top rod 3.21 and the movable springs 3.22 to reset and disconnect the connection; the spring 3.2D provides a reliable reset force to ensure the stability of the disconnected state.

[0030] See appendix Figure 13 and attached Figure 14 As shown, the movable spring 3.22 is embedded in the switch panel 3.2F; the movable spring 3.22 has a central hole 3.22A, and the cylinder 3.21A at the end of the push rod 3.21 is riveted to the movable spring 3.22 through the central hole 3.22A. The movable spring 3.22 is embedded in the switch panel 3.2F and fixed by the cylinder 3.21A at the end of the push rod 3.21 through the central hole 3.22A. This structure ensures the precise positioning of the movable spring 3.22 on the switch panel 3.2F, and the riveting achieves a rigid connection between the movable spring 3.22 and the push rod 3.21, so that the movement of the iron needle 3.11 / push rod 3.21 can be accurately and synchronously transmitted to the movable spring 3.22, ensuring the reliability and consistency of its downward / upward movement.

[0031] See appendix Figure 2 As shown, the signal interface component 4 includes a main signal interface 4.1 and several sub-signal interfaces 4.2 mounted on a fixed plate 3.2C. The sub-signal interfaces 4.2 are evenly distributed and arranged around the main signal interface 4.1. The fixed plate 3.2C has a central main signal interface 4.1 and multiple sub-signal interfaces 4.2 evenly distributed around it. This layout corresponds one-to-one with the evenly distributed channels of the moving springs 3.22, resulting in a compact and reasonable structure. When the moving spring 3.22 of a specific channel moves downward, reliable communication is achieved between the main signal interface 4.1 and the sub-signal interface 4.2 of that channel, completing the switching of the radio frequency signal path. The number of sub-signal interfaces 4.2 is 4 to 8, specifically 4, 6, or 8.

[0032] When the potential at the starting end 3.13A is greater than the potential at the ending end 3.13B, the iron needle 3.11 in the middle of the coil 3.13 will be endowed with S-pole magnetism; conversely, the iron needle 3.11 will be endowed with N-pole magnetism. When the iron needle 3.11 and the lower end of the permanent magnet 3.14 have the same S-pole magnetism, the iron needle 3.11 will be subjected to a downward force.

[0033] In an ideal situation, see Appendix Figure 15 As shown, when the iron needle 3.11 in a certain channel is pressed down, it will press down the push rod 3.21, and at the same time move the movable spring 3.22 down, thus connecting the main signal interface 4.1 and the sub-signal interface 4.2. When the iron needle 3.11 moves up, the spring 3.2D will push the push rod 3.21 up, and at the same time move the movable spring 3.22 up, thus disconnecting the main signal interface 4.1 and the sub-signal interface 4.2.

[0034] In practical use, due to insufficient magnetism or other reasons, the following may occur: Figure 16 and attached Figure 18 As shown, the moving reed 3.22 does not move down far enough, resulting in a gap between the moving reed 3.22 and the main signal interface 4.1 and the sub-signal interface 4.2. This prevents the main signal interface 4.1 and the sub-signal interface 4.2 from connecting, causing the mechanical switch to malfunction.

[0035] At this point, use a screwdriver to turn the adjusting screw 3.15 downwards, causing the permanent magnet 3.14 to move downwards as well. See Appendix. Figure 17 and attached Figure 19 As shown, bringing the permanent magnet 3.14 closer to the iron needle 3.11 increases the repulsive force between their magnetic poles, allowing the iron needle 3.11 to be pressed down smoothly. The adjustment hole 3.1A1 on the PCB board 3.1A allows for easy tightening of the adjustment screw 3.15 after installation.

[0036] This invention presents an adjustable radio frequency mechanical switch with online magnetic force compensation capability. By adjusting the linkage structure between the screw and the permanent magnet, dynamic and convenient adjustment of the driving magnetic force is achieved. This design effectively solves the problems of insufficient downward movement distance of the moving spring, poor contact (causing gaps), and switch failure caused by magnet magnetic attenuation, component tolerances, or wear. It significantly improves the long-term reliability and stability of radio frequency signal switching, while reducing the cost caused by pursuing high initial magnetic force or ultra-high precision manufacturing.

[0037] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. An adjustable radio frequency mechanical switch, characterized in that, include: Casing (2); Output interface (1), the output interface (1) is located at the upper end of the cover (2); The switch assembly (3) includes a mechanical motion assembly (3.1) located inside the housing (2) and a signal transmission assembly (3.2) located at the lower end of the housing (2). The signal transmission component (3.2) is provided with a signal interface component (4); The mechanical motion component (3.1) includes, from top to bottom, a PCB board (3.1A), an upper partition (3.16), a lower partition (3.1E), a first baffle (3.1G), and a second baffle (3.1J). A first baffle (3.1B) is provided between the PCB board (3.1A) and the upper partition (3.16). A plurality of adjusting screws (3.15) are provided between the upper partition (3.16) and the lower partition (3.1E), and a permanent magnet (3.14) is provided at the lower end of each adjusting screw (3.15); the PCB board (3.1A) is provided with adjusting holes (3.1A1) corresponding one-to-one with the adjusting screws (3.15). A second baffle (3.1F) is provided between the lower partition (3.1E) and the first baffle (3.1G). A third stop post (3.12) and an iron needle (3.11) are provided between the first baffle (3.1G) and the second baffle (3.1J), and a coil (3.13) is sleeved on each of the iron needles (3.11).

2. The adjustable radio frequency mechanical switch according to claim 1, characterized in that: The PCB board (3.1A), the first baffle (3.1B), the upper partition (3.16), the lower partition (3.1E), the second baffle (3.1F), and the first baffle (3.1G) are connected by the first screw (3.1C); A first nut (3.1D) is provided between the upper partition (3.16) and the lower partition (3.1E). The first screw (3.1C) passes through the PCB board (3.1A), the first stop post (3.1B), the upper partition (3.16), the first nut (3.1D), the lower partition (3.1E), the second stop post (3.1F), and the first baffle (3.1G) in sequence and is then fastened to the second nut (3.1S).

3. An adjustable radio frequency mechanical switch according to claim 2, characterized in that: The upper and lower ends of the third stop (3.12) are provided with internal threads (3.12A) along its axial direction. The upper and lower ends of the third stop (3.12) are respectively fastened to the first baffle (3.1G) and the second baffle (3.1J) by a second screw (3.1K).

4. An adjustable radio frequency mechanical switch according to claim 1, characterized in that: The upper partition (3.16) has a number of threaded holes (3.16A) equal to the number of adjusting screws (3.15). The adjusting screws (3.15) are provided with external threads (3.15A) that are adapted to the threaded holes (3.16A). The adjusting screws (3.15) are threadedly connected to the upper partition (3.16) and move up and down in the threaded holes (3.16A) by rotation.

5. An adjustable radio frequency mechanical switch according to claim 1, characterized in that: The adjusting screw (3.15) is made of ferromagnetic material; the permanent magnet (3.14) is sleeved on the lower end of the adjusting screw (3.15); the upper half (3.14A) of the permanent magnet (3.14) is the N pole and the lower half (3.14B) is the S pole.

6. An adjustable radio frequency mechanical switch according to claim 1, characterized in that: The iron needle (3.11) consists of a needle cap (3.11A), a needle post (3.11B), and a needle tip (3.11C) connected in sequence; the coil (3.13) is sleeved on the needle post (3.11B), and the coil (3.13) is provided with a starting end (3.13A) and an ending end (3.13B).

7. An adjustable radio frequency mechanical switch according to claim 1, characterized in that: The signal transmission component (3.2) includes a fixed plate (3.2C) and a switch panel (3.2F). A plurality of movable springs (3.22) are disposed between the fixed plate (3.2C) and the switch panel (3.2F). Each of the movable springs (3.22) is evenly distributed around the center line of the fixed plate (3.2C). The fixed plate (3.2C) is provided with a plurality of push rods (3.21) corresponding one-to-one with the movable spring (3.22). Each push rod (3.21) is fitted with a spring (3.2D). The push rod (3.21) passes through the spring (3.2D), the fixed plate (3.2C), and the movable spring (3.22) in sequence and is connected to the switch panel (3.2F). The fixed plate (3.2C) and the switch panel (3.2F) are connected by a third screw (3.2A).

8. An adjustable radio frequency mechanical switch according to claim 7, characterized in that: The movable spring (3.22) is embedded in the switch panel (3.2F); the movable spring (3.22) has a central hole (3.22A), and the cylinder (3.21A) at the end of the push rod (3.21) is riveted to the movable spring (3.22) through the central hole (3.22A).

9. An adjustable radio frequency mechanical switch according to claim 7, characterized in that: The signal interface component (4) includes a main signal interface (4.1) and several sub-signal interfaces (4.2) disposed on the fixed plate (3.2C), and each of the sub-signal interfaces (4.2) is evenly distributed and arranged around the main signal interface (4.1).

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