Double-magnetic type radio frequency coaxial switch switching trigger

Abstract

The invention provides a double-magnetic-attraction type radio frequency coaxial switch switching trigger which comprises a trigger base, a mounting hole is formed in the trigger base, a movable magnet and a fixed magnet with the same magnetic pole direction are arranged in the mounting hole, an electromagnet is arranged outside the mounting hole, and the movable magnet is located between the fixed magnet and the electromagnet; a spring is further arranged in the mounting hole and has elastic force on the movable magnet, and the elastic force is opposite to the attraction force of the fixed magnet on the movable magnet. The bidirectional repulsion and adsorption effects of the magnetic attraction force are utilized, so that the quick movement of the moving block is realized, and the response time of signal switching is shortened; the moving block is controlled to move up and down in a magnetic attraction mode, abrasion of a mechanical contact part occurs on the side wall, the phenomenon that the stroke of a traditional mechanism is increased due to up-down abrasion is avoided, and reliability and long-term stability of signal switching are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of microwave passive devices, and in particular relates to a double-magnetic radio frequency coaxial switch switching trigger. Background Art

[0002] In the prior art, common RF coaxial switch switching mechanisms are usually adopted in mechanical rocker or solid-state switch mode. Mechanical rocker switches rely on rocker mode for switching operation. Although the structure is simple, the wear of mechanical parts occurs at the bottom. As the use time increases, the switching stroke will become larger, the reliability and service life of the switch will decrease, and it cannot meet the stability requirements of high-frequency signals. On the other hand, solid-state switches (including FET and PIN diodes) realize signal on-off through the control of semiconductor devices. FET controls the flow of current by creating a channel, while PIN diodes realize the switching function by changing their resistance state. Although solid-state switches have faster switching speeds, they may produce larger insertion losses under high power conditions, and the nonlinear effects of solid-state switches may cause signal distortion in some applications.

[0003] In summary, the RF coaxial switch switching mechanism in the prior art has deficiencies in response speed, switching stability, signal integrity, etc. Therefore, there is an urgent need for an RF switch switching device that can quickly and stably switch signals in a high-frequency environment to meet the requirements for high-frequency signal transmission stability and accuracy. Summary of the invention

[0004] This application mainly solves the problem of simulating the flying line being subjected to water wave vibration in an underwater environment. To solve this technical problem, a dual magnetic RF coaxial switch switching trigger is proposed. The specific technical solution is as follows:

[0005] A dual-magnetic radio frequency coaxial switch switching trigger, comprising a trigger base, the trigger base having a mounting hole, a movable magnet and a fixed magnet having the same magnetic pole direction are arranged in the mounting hole, an electromagnet is arranged outside the mounting hole, and the movable magnet is located between the fixed magnet and the electromagnet;

[0006] A spring is also arranged in the mounting hole. The spring has an elastic force on the movable magnet. The elastic force is opposite to the attractive force of the fixed magnet on the movable magnet.

[0007] Furthermore, a spring sheet is arranged outside the trigger base, and the spring sheet is fixed to the movable magnet.

[0008] Furthermore, a moving block is arranged in the mounting hole, one end of the moving block is fixed to the movable magnet, and the other end of the moving block extends out of the mounting hole and is fixed to the spring sheet.

[0009] Furthermore, the spring sheet is fixed on the moving block by screws.

[0010] Furthermore, the fixed magnet is in the shape of a small block, a ring or an arc to avoid the moving block.

[0011] Furthermore, a step surface is provided in the mounting hole, and the fixed magnet is fixed on the step surface.

[0012] Furthermore, there is a gap between the moving block and the mounting hole, and the spring is arranged in the gap.

[0013] Furthermore, the fixed magnet is located between two ends of the spring.

[0014] Furthermore, the movable magnet and the fixed magnet are fixed by using a retaining ring and an annular groove.

[0015] Furthermore, a pressing sheet is provided at the opening of the mounting hole to limit the moving block from sliding out of the mounting hole.

[0016] The beneficial effects of the present invention are:

[0017] (1) Fast response: The bidirectional repulsion and adsorption of magnetic attraction is used to achieve fast movement of the moving block and shorten the response time of signal switching;

[0018] (2) High stability: The moving block is controlled to move up and down by magnetic attraction, and the wear of the mechanical contact parts occurs on the side wall, which avoids the phenomenon of increased stroke due to up and down wear in traditional mechanisms and improves the reliability and long-term stability of signal switching;

[0019] (3) Simple structure: It uses a small number of mechanical parts and electromagnetic components, and the overall structure is simplified, which is easy to manufacture, install and maintain;

[0020] (4) Long service life: Since the bottom wear problem of traditional electromechanical switches is reduced, the service life of the device is significantly extended, making it suitable for long-term stable working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shown is an exploded view of a dual magnetic RF coaxial switch switching trigger in an embodiment;

[0022] Figure 2 What is shown is a half-section view of a switching trigger of a dual magnetic RF coaxial switch in an embodiment;

[0023] Figure 3 What is shown is a top isometric view of a dual magnetic RF coaxial switch trigger in an embodiment;

[0024] Figure 4What is shown is an axonometric view of the bottom of a dual magnetic RF coaxial switch trigger in an embodiment;

[0025] Figure 5 The figure shows a schematic diagram of the installation position of the dual magnetic RF coaxial switch switching trigger in the RF coaxial switch in the embodiment;

[0026] Figure 6 What is shown is a schematic diagram of the working principle of a single channel of a dual magnetic RF coaxial switch switching trigger in an embodiment;

[0027] Reference numerals:

[0028] 1. Screw one; 2. Screw two; 3. Spring sheet; 4. Bottom annular pressure sheet; 5. Bottom elliptical pressure sheet; 6. Circular spring; 7. Trigger base; 8. Circular magnet; 9. Circular magnet retaining ring; 10. Circular magnet retaining ring; 11. Moving block; 12. Circular magnet; 13. Top annular pressure sheet; 14. Top elliptical pressure sheet; 15. Screw three; 16. Solenoid valve assembly; 17. Trigger overall assembly; 18. RF connector. DETAILED DESCRIPTION

[0029] In the following description, certain specific details are set forth in order to provide a thorough understanding of various embodiments. However, it will be appreciated by those skilled in the art that the present invention may be practiced without these details. In other cases, well-known structures are not shown or described in detail to avoid unnecessarily obscuring the description of the embodiments. Unless the context otherwise requires, throughout the specification and the appended claims, the word "comprising" shall be interpreted in an open, inclusive sense, i.e., as "including but not limited to".

[0030] "One embodiment" or "embodiment" mentioned throughout this specification means that in at least one embodiment, specific features, structures or characteristics related to the embodiment are included. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing in various places throughout this specification do not necessarily all refer to the same embodiment. In addition, specific features, structures or characteristics can be combined in any suitable manner in one or more embodiments. In addition, as used in this specification and the appended claims, the singular forms "one / kind" and "the" include plural indicators unless the context clearly dictates otherwise. It should also be noted that the term "or" is generally used in its meaning that includes "and / or" unless the context clearly dictates otherwise.

[0031] The dual-magnetic RF coaxial switch switching trigger described in the present application is characterized in that two magnetic components are provided, which are respectively located on both sides of the movable magnet 12, and the two magnetic components are respectively a fixed magnet 8 and an electromagnetic valve assembly 16, wherein the electromagnetic valve assembly 16 changes the magnetic pole direction of the electromagnetic valve assembly 16 by passing positive and reverse currents, and the magnetic pole directions of the fixed magnet 8 and the electromagnetic valve assembly 16 should be set to be the same.

[0032] In the implementation scheme, a trigger base 7 is provided for installing the active magnet 12, and a mounting hole is provided on the trigger base 7. As the name implies, the fixed magnet 8 in the mounting hole should be fixed, and the active magnet 12 is movable. The solenoid valve assembly 16 is provided outside the trigger base 7, and the active magnet 12 is maintained between the fixed magnet 8 and the solenoid valve assembly 16.

[0033] In the implementation scheme, a spring 6 should also be provided in the mounting hole, and the spring 6 is used to provide a force opposite to the fixed magnet 8 to the movable magnet 12, so that when the movable magnet 12 approaches the fixed magnet 8 to generate a magnetic attraction, the spring 6 is compressed by the movable magnet 12 to apply a reverse force to the movable magnet 12.

[0034] When the spring sheet 3 is arranged outside the trigger base 7, the spring sheet 3 plays a role of buffer protection.

[0035] By energizing the solenoid valve assembly 16, the magnetic poles of the solenoid valve assembly 16 and the movable magnet 12 are opposite, and the movable magnet 12 is subjected to the repulsive force of the solenoid valve assembly 16, the magnetic attraction force of the fixed magnet 8 and the elastic force of the spring 6. The repulsive force of the solenoid valve assembly 16 and the magnetic attraction force of the fixed magnet 8 are in the same direction, which is opposite to the elastic force of the spring 6, and the repulsive force of the solenoid valve assembly 16 and the magnetic attraction force of the fixed magnet 8 are greater than the elastic force of the spring 6, so that the movable magnet 12 approaches the fixed magnet 8 to the extreme position and remains at the extreme position. The movable magnet 12 compresses the transmission reed to contact with the inner conductor and maintains continuous contact to keep the signal path connected.

[0036] By energizing the solenoid valve assembly 16, the magnetic poles of the solenoid valve assembly 16 and the movable magnet 12 are the same, and the movable magnet 12 is affected by the magnetic attraction of the solenoid valve assembly 16, the magnetic attraction of the fixed magnet 8 and the elastic force of the spring 6. The directions of the magnetic attraction of the solenoid valve assembly 16 and the elastic force of the spring 6 are the same, and opposite to the directions of the magnetic attraction of the fixed magnet 8. In addition, the magnetic attraction of the solenoid valve assembly 16 and the elastic force of the spring 6 are greater than the magnetic attraction of the fixed magnet 8, so that the movable magnet 12 moves away from the fixed magnet 8 to the extreme position and remains at the extreme position. The force on the transmission reed is released and it remains continuously separated from the contact piece, so that the signal path is continuously disconnected.

[0037] In the implementation scheme, a moving block 11 is required to assist in connecting the spring sheet 3 and the movable magnet 12 . One end of the moving block 11 is fixed to the movable magnet 12 , and the other end extends out of the mounting hole and is fixedly connected to the spring sheet 3 .

[0038] In the implementation scheme, the fixed magnet 8 needs to avoid the portion of the moving block 11 extending outside the mounting hole, so the fixed magnet 8 is configured to be a small block or a ring, or an arc.

[0039] In one embodiment, the fixed magnet 8 is set to a ring magnet, and the middle through hole of the ring magnet is used to avoid the moving block 11; in another embodiment, the fixed magnet 8 is set to an arc magnet, and the inner side of the arc magnet is used to avoid the moving block 11; in another embodiment, the fixed magnet 8 is set to a small magnet, and the small magnet is misaligned with the moving block 11 to avoid the moving block 11; in another embodiment, the fixed magnet 8 is set to multiple small magnets, and the gaps between the multiple small magnets are used to avoid the moving block 11.

[0040] In the implementation scheme, a step surface is also provided in the mounting hole, and the step surface is convenient for installing the fixed magnet 8, that is, the fixed magnet 8 is fixed on the step surface.

[0041] In the implementation scheme, the number and arrangement relationship of the mounting holes are set accordingly according to the applied RF coaxial connector, and there are no restrictive requirements.

[0042] Example

[0043] This embodiment only provides a more complete and detailed solution in combination with the drawings, and is not intended to be the sole limitation on the invention content of this application, nor is it intended to be the sole limitation on the combination of the above-mentioned components or structures.

[0044] See also Figure 1 In this embodiment, the dual magnetic RF coaxial switch switching trigger is specially matched with the trigger base 7 as the main body, and the trigger base 7 has 12 mounting holes for assembling the trigger component; see FIG. Figure 3 , Figure 4 The 12 mounting holes of the trigger base 7 are arranged in a central radial shape.

[0045] The core components in the trigger assembly include a circular magnet 12 , a moving block 11 , an annular magnet 8 , a circular spring 6 and a spring sheet 3 .

[0046] Combination Figures 2 to 4The mounting hole in the trigger base 7 has a step surface in the middle, which is used to fix the annular magnet 8 and limit the limit position of the moving block 11. The moving block 11 is located in the mounting hole and one end passes through the annular magnet 8 and extends to the outside of the mounting hole. The spring sheet 3 is arranged outside the mounting hole and fixed to the moving block. The circular spring 6 is arranged in the gap between the moving block 11 and the mounting hole. When the moving block 11 moves in the mounting hole and the part exposed outside the mounting hole increases, the moving block 11 will squeeze the circular spring 6 so that the circular spring 6 stores a certain elastic potential energy.

[0047] The circular magnet 12 is also fixed on the moving block 11, and the circular magnet 12 is fixed to the opposite end of the spring sheet 3, so that the circular magnet 12 is always located inside the mounting hole.

[0048] Based on the above description, the side that the circular magnet 12 faces is defined as the top of the trigger base 7 , and the side that the spring sheet 3 faces is defined as the bottom of the trigger base 7 .

[0049] The circular magnet 12 and the annular magnet 8 are fixedly installed in the form of retaining rings and annular grooves. Specifically, a groove is formed at the end of the moving block 11, and corresponding annular grooves are provided on the groove wall and the side wall of the circular magnet 12, and the circular magnet retaining ring 10 is embedded in the annular grooves on both sides to fix the circular magnet 12 on the annular magnet 8; corresponding annular grooves are provided on the side wall of the mounting hole and the side wall of the annular magnet 8, and the annular magnet retaining ring 9 is embedded in the annular grooves on both sides to fix the annular magnet 8 in the mounting hole.

[0050] The inner diameter of the annular magnet 8 is larger than the outer diameter of the circular spring 6 to prevent the circular spring 6 from directly contacting the moving block 11 .

[0051] The mounting hole is auxiliary closed by means of a pressing sheet and a screw to fix or restrict the internal moving block 11 .

[0052] More specifically, at the top of the trigger base 7, according to the layout characteristics of the mounting holes, in order to facilitate the fixing of the pressing plate, the pressing plates are arranged as a top elliptical pressing plate 14 and a top annular pressing plate 13. The difference between the two is only in the shape and the position at the top of the trigger base 7, and there is no difference in purpose and function. There are 6 top annular pressing plates 13, which are arranged radially from the center on the outside, and there are 6 top elliptical pressing plates 14, which are arranged radially from the center on the inside of the top annular pressing plate 13. The top elliptical pressing plate 14 and the top annular pressing plate 13 are both fixed to the top surface of the trigger base 7 by two screws 15 to limit the moving block 11 from sliding out of the mounting hole.

[0053] At the bottom of the trigger base 7, according to the layout characteristics of the mounting holes, a bottom annular pressing plate 4 and a bottom elliptical pressing plate 5 are correspondingly provided. The difference between the two is only in the shape and the position at the top of the trigger base 7, and there is no difference in purpose and function. There are 6 bottom annular pressing plates 4, which are arranged radially from the center on the outside, and there are 6 bottom elliptical pressing plates 5, which are arranged radially from the center on the inner side of the bottom annular pressing plate 4. Both the bottom annular pressing plate 4 and the bottom elliptical pressing plate 5 are fixed to the bottom surface of the trigger base 7 by two screws. At the same time, the bottom annular pressing plate 4 and the bottom elliptical pressing plate 5 are also provided with holes for extending out of the matching moving block 11.

[0054] A threaded hole is provided at the end of the moving block 11 to cooperate with a screw 1 to fix the spring sheet 3 on the moving block 11.

[0055] After the above-mentioned overall assembly is completed, it is called the trigger overall assembly 17. The trigger overall assembly 17 should also work with the solenoid valve assembly 16 to realize the switch control of the RF connector 18. Figure 5 and Figure 6 , explaining the working principle:

[0056] When a certain solenoid valve coil of the solenoid valve assembly 16 is energized in reverse instantaneously, the magnetic field generated by the coil and the magnetic field of the circular magnet 12 produce a repulsive effect. Under this effect, the moving block 11 moves downward, compressing the circular spring 6 and at the same time driving the transmission reed to contact the inner conductor, completing the connection of the radio frequency signal.

[0057] When the moving block 11 moves to the lower limit position, since the magnetic fields of the circular magnet 12 and the annular magnet 8 are in opposite directions, the two produce an adsorption effect, and the moving block 11 remains at the lower limit position, and the signal path is continuously connected.

[0058] When it is necessary to disconnect the signal, the solenoid valve coil is energized in the forward direction instantaneously, and the generated magnetic field produces an adsorption effect on the circular magnet 12. The adsorption force is greater than the adsorption force between the circular magnet 12 and the annular magnet 8. The moving block 11 moves upward to the upper limit position, disconnecting the transmission reed from the inner conductor to complete the signal disconnection.

[0059] Under the elastic force of the circular spring 6 , the moving block 11 is kept at the upper limit position, and the signal path is continuously disconnected.

[0060] In the above two control processes, it should be emphasized that the solenoid valve coil will not be continuously energized, which will cause the coil to heat up and be damaged, thereby causing the solenoid valve to lose performance. The solenoid valve coil controls the movement of the circular magnet 12 only by momentary energization. After the circular magnet 12 moves to the limit position, the circular magnet 12 is maintained at its current position by the matching arrangement of the annular magnet 8 and the circular spring 6.

[0061] Combined with this application Figure 6 When the signal transmission is disconnected, the circular magnet 12 is closest to the solenoid valve coil. At this time, the circular magnet 12 is in a certain position in the middle of the circular spring 6, and the circular spring 6 is still in an elastic compression state to provide a force greater than the annular magnet 8 to the moving block 11. The circular magnet 12 can still be kept in this position after the solenoid valve coil is powered off; when the solenoid valve coil is reversely energized to generate a repulsive force on the circular magnet 12, the circular magnet 12 moves almost close to the annular magnet 8, and the moving distance of the circular magnet 12 is the same as the compression length of the circular spring 6. Since the force of the circular spring 6 changes linearly, and the force between the circular magnet 12 and the annular magnet 8 is generally inversely proportional to the power of the distance, since the circular magnet 12 is almost close to the annular magnet 8, the magnetic attraction generated by the two exceeds the repulsive force of the circular spring 6. Therefore, the circular magnet 12 can still be kept in this position after the solenoid valve coil is powered off.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A dual magnetic RF coaxial switch switching trigger, comprising a trigger base, the trigger base having a mounting hole, characterized in that: A movable magnet and a fixed magnet with the same magnetic pole direction are arranged in the mounting hole, an electromagnet is arranged outside the mounting hole, and the movable magnet is located between the fixed magnet and the electromagnet; A spring is also arranged in the mounting hole. The spring has an elastic force on the movable magnet. The elastic force is opposite to the attractive force of the fixed magnet on the movable magnet.

2. A dual magnetic RF coaxial switch trigger according to claim 1, characterized in that: A spring sheet is arranged outside the trigger base, and the spring sheet is fixed to the movable magnet.

3. A dual magnetic RF coaxial switch switching trigger according to claim 2, characterized in that: A moving block is arranged in the mounting hole, one end of the moving block is fixed to the movable magnet, and the other end of the moving block extends out of the mounting hole and is fixed to the spring sheet.

4. A dual magnetic RF coaxial switch switching trigger according to claim 3, characterized in that: The spring sheet is fixed on the moving block by screws.

5. The dual magnetic RF coaxial switch trigger according to claim 1, characterized in that: The fixed magnet is in the shape of a small block, a ring or an arc to avoid the moving block.

6. The dual magnetic RF coaxial switch trigger according to claim 1, characterized in that: A step surface is arranged in the mounting hole, and the fixed magnet is fixed on the step surface.

7. The dual magnetic RF coaxial switch trigger according to claim 1, characterized in that: There is a gap between the moving block and the mounting hole, and the spring is arranged in the gap.

8. The dual magnetic RF coaxial switch trigger according to claim 6, characterized in that: The fixed magnet is located between the two ends of the spring.

9. The dual magnetic RF coaxial switch trigger according to claim 1, characterized in that: The movable magnet and the fixed magnet are fixed by using a retaining ring and an annular groove.

10. The dual magnetic RF coaxial switch trigger according to claim 1, characterized in that: A pressing sheet is arranged at the opening of the mounting hole to restrict the moving block from sliding out of the mounting hole.

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