Electromagnetic driving device of radio frequency relay

Abstract

The invention relates to the technical field of relays, in particular to an electromagnetic driving device of a radio frequency relay, which comprises a mounting seat, a shield mounted on one side of the mounting seat and a coil fixed on the inner wall of the shield, an armature is arranged on one side of the top end of the coil, and a fixed seat is fixedly connected to one side of the mounting seat. One side of the top end of the fixed seat is fixedly connected with a static contact, and through the arrangement of the contact cleaning assembly, the driving assembly, the abutting assembly and the triggering assembly and the linkage operation among the assemblies, the static contact is fixedly connected with the moving contact after the moving contact and the static contact are opened and closed. The device can automatically and effectively remove impurities such as metal oxides and carbides generated on the surfaces of the moving contact and the static contact due to arc ablation, after the impurities are removed, the moving contact and the static contact can be always kept in a good electric contact state, the stable and low contact resistance is favorable for ensuring smooth transmission of current between contacts, and the service life of the moving contact and the static contact is prolonged. The energy loss and distortion in the signal transmission process are reduced, and the overall use effect and stable operation are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, and particularly to an electromagnetic driving device for a radio frequency relay. Background Art

[0002] The function of the electromagnetic driving component of a radio frequency relay is to convert electromagnetic energy into mechanical energy, thereby driving the movement of mechanical components to complete specific functions. The electromagnetic driving mechanism is the core operating mechanism of the entire relay, directly determining the service life of the product.

[0003] The electromagnetic driving device of a radio frequency relay mainly consists of parts such as an iron core, a coil, an armature, and a spring. Its working principle is based on the action of electromagnetic induction and electromagnetic force, specifically as follows: when a suitable voltage is applied across the coil, current will flow through the coil. The energized coil will generate a magnetic field around it. This magnetic field will magnetize the iron core, thereby enhancing the magnetic field intensity. The generated magnetic field exerts an electromagnetic attraction force on the armature. When the electromagnetic attraction force is large enough, it can overcome the elastic force of the spring and attract the armature towards the iron core. The movement of the armature drives the moving contact connected to it to move, causing the moving contact to close with the static contact, thereby achieving the conduction of the circuit. At this time, the radio frequency relay is in the attracted state, completing functions such as the switching of the signal path. When the current in the coil is cut off, the magnetic field generated by the coil quickly disappears, and the magnetism of the iron core also disappears accordingly. At this time, the elastic force of the spring will come into play, causing the armature to return to its original position, driving the moving contact to separate from the static contact, the circuit is disconnected, and the radio frequency relay returns to its initial off state, and the signal path is cut off or switched to other paths. By controlling the on and off of the current in the coil, the electromagnetic driving device can control the relay contacts.

[0004] When the contacts of the existing radio frequency relay open and close frequently, at the moment of contact separation, the voltage between the contacts rises sharply, and the distance rapidly decreases, causing the air to be broken down to form a conductive plasma channel, that is, an arc. The arc temperature is extremely high, up to thousands of degrees Celsius. Under the action of such a high temperature, the metal on the contact surface quickly melts and evaporates. In a high-temperature and oxygen-containing environment, the metal will chemically react with oxygen to form metal oxides. At the same time, if there are carbon-containing substances around the contacts, under the high temperature of the arc, carbon may also react with the metal to produce carbides. These impurities such as metal oxides and carbides generated by arc erosion adhere to the contact surface. The electromagnetic driving device of the existing radio frequency relay does not have the function of automatically cleaning impurities such as metal oxides and carbides, which will seriously affect the electrical contact performance of the contacts and the overall working state during long-term use. Summary of the Invention

[0005] The object of the present invention is to provide an electromagnetic driving device for a radio frequency relay to solve the problem that the existing electromagnetic driving device for a radio frequency relay proposed in the above background technology does not have the function of automatically cleaning impurities such as metal oxides and carbides, which will seriously affect the electrical contact performance and overall working state of the contacts during long-term use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electromagnetic drive device of a radio frequency relay, comprising a mounting seat, a protective cover installed on one side of the mounting seat, and a coil fixed on the inner wall of the protective cover, an armature is arranged on one side of the top of the coil, a fixed seat is fixedly connected to one side of the mounting seat, a static contact is fixedly connected to one side of the top of the fixed seat, a fixed plate is fixedly connected to the outside of one side of the armature, a moving contact is fixedly installed on the side of the fixed plate close to the top of the static contact, a support frame is fixedly connected to one side of the top of the fixed seat, a pressing rod is laterally fixedly connected to the side of the fixed plate close to the support frame, a contact cleaning assembly and a driving assembly are arranged on one side of the support frame, and a collecting and discharging assembly is arranged inside the side of the protective cover close to the top of the support frame; the contact cleaning assembly comprises a disc and two wiping brush plates, the disc is rotatably mounted on the outside of one side of the support frame, and the two wiping brush plates are symmetrically and laterally arranged on the outside of one side between the moving contact and the static contact.

[0007] Furthermore, a mounting plate is fixedly connected to the top of the coil, an iron core is fixedly mounted on the outside of the top side of the mounting plate close to the armature, a limiting frame is fixedly mounted on the inside of the shield close to the coil, one end of the armature is longitudinally penetrated and slidably engaged on the outside of the top side of the limiting frame, and a limiting spring is fixedly connected between one end of the armature and one side of the outside of the limiting frame.

[0008] Furthermore, a reciprocating rod is slidably provided on the outside of one side of the disc through a bracket that passes horizontally through the bracket. The reciprocating rod is arranged in a horizontal T-shape. A bracket is slidably installed on the outside of one side of the reciprocating rod. A limiting column is fixedly connected to the edge of one side of the disc. A sliding groove is longitudinally provided on the inside of the side of the reciprocating rod close to the limiting column. The limiting column and the sliding groove are slidably connected. An interference component is provided at one end of the reciprocating rod close to the two wiping brush plates.

[0009] Furthermore, the resistance assembly includes a mounting frame, which is fixedly mounted on the outside of one end of the reciprocating rod close to the two wiping brush plates, and a plurality of auxiliary rods are fixedly mounted around the outer surface of one side of the two wiping brush plates close to the mounting frame, and one end of the plurality of auxiliary rods are slidably mounted on the outside of one side of the mounting frame, and resistance springs are sleeved and mounted on the outside of the plurality of auxiliary rods, and the two ends of the resistance springs are respectively mounted on the outside of the wiping brush plate and one side of the mounting frame.

[0010] Furthermore, a rubber contact plate is fixedly mounted on the outer side of one side of the two wiping brush plates close to the moving contact and the static contact, and the front cross-section of the rubber contact plate is arranged in an arc shape.

[0011] Furthermore, the driving assembly includes a ratchet and a rack, the ratchet is fixedly mounted on the outside of one side of the disc, the center of the ratchet and the center of the disc are on the same central axis, the rack is longitudinally meshed and mounted on the outside of one side of the ratchet, a positioning rod is longitudinally penetrated and slidably mounted inside the rack, the bottom end of the positioning rod is fixedly mounted on the inside of one side of the shield, a reset spring is sleeved on the outside of one side of the bottom end of the positioning rod, two ends of the reset spring are respectively mounted on one side of the rack and the shield, and one side of the bottom end of the pressing rod is in contact with one side of the top end of the rack.

[0012] Furthermore, a trigger assembly is provided on the side of the rack away from the ratchet; the trigger assembly includes a pull rod and a spring block, the pull rod is longitudinally arranged on the outside of one side of the rack, the spring block is fixedly installed on the outside of the side of the rack close to the pull rod, the pull rod is arranged in an inverted L shape, the top side of the pull rod is in contact with the top side of the pressing rod, an auxiliary frame is slidably installed through the outside of one side of the pull rod, and the bottom end of the auxiliary frame is fixedly installed on the bottom wall of one side of the shield.

[0013] Furthermore, a positioning plate is longitudinally arranged inside one side of the protective cover close to the spring block, a guide groove is penetrated inside the positioning plate, a resistance block is slidably installed inside the guide groove, the top end of the resistance block is fixed to one side of the bottom end of the pull rod, and a plurality of tension springs are fixedly connected at equal intervals between the bottom end of the resistance block and the bottom wall of the guide groove.

[0014] Furthermore, the collecting and discharging assembly includes a collecting cylinder and a piston rod. The collecting cylinder is fixedly mounted inside the top side of the protective cover close to the pressing rod. The piston rod is longitudinally slidingly sealed and mounted inside the collecting cylinder. The bottom end of the piston rod is fixedly mounted on the top side of the pressing rod.

[0015] Furthermore, a one-way air intake valve tube and a one-way exhaust valve tube are fixedly installed through one side of the top end of the collecting cylinder, and a collecting head is installed on the input end of the one-way air intake valve tube. The input end of the collecting head is arranged on the outside of one side of the two wiping brush plates, and the output end of the one-way exhaust valve tube is installed through one side of the top end of the protective cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the setting of the contact cleaning component, the driving component, the resistance component and the trigger component and the linkage operation between the components, after the moving contact opens and closes with the static contact, the device can automatically and effectively remove the metal oxides, carbides and other impurities generated by arc ablation on the surfaces of the moving contact and the static contact. After the impurities are removed, the moving contact and the static contact can always maintain a good electrical contact state. The stable and low contact resistance helps to ensure the smooth transmission of current between the contacts, reduce the energy loss and distortion in the signal transmission process, and ensure the overall use effect and stable operation; During the process of attraction and separation between the moving contact and the static contact, the collecting and discharging component on one side can be triggered to operate synchronously. When the moving contact descends to perform the attraction movement, the collecting and discharging component can absorb and collect the fine debris and impurities adhered to the surface of the wiping brush plate, thereby ensuring the cleanliness of the surface of the wiping brush plate, ensuring long-term stability of use and subsequent cleaning effect. When the moving contact is lifted to perform the separation movement, the collecting and discharging component can discharge the fine debris and impurities just absorbed to the outside of the protective cover, thereby ensuring the overall use effect. At the same time, through the automatic suction operation of the collecting and discharging component, a certain amount of hot gas generated by the components inside the protective cover can also be collected and discharged, which plays a certain role in extraction and heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the protective cover and the collecting tube installed in the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing plate and the pressing rod of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle; Figure 6 For the present invention Figure 5 The enlarged structural diagram at C in the middle; Figure 7 This is a schematic diagram showing the synchronous descending of the pressing rod and the extruding rack according to the present invention; Figure 8 It is a schematic diagram of a partially cutaway three-dimensional structure of the collecting cylinder and the piston rod installed in the present invention.

[0018] In the attached drawings, the parts represented by the reference numerals are as follows: 1. mounting seat; 2. shield; 3. coil; 4. mounting plate; 5. iron core; 6. limit frame; 7. armature; 8. limit spring; 9. fixing plate; 10. moving contact; 11. fixing seat; 12. stationary contact; 13. support frame; 14. disc; 15. reciprocating rod; 16. slideway; 17. limit column; 18. mounting frame; 19. wiping brush plate; 20. auxiliary rod ; 21. Resistance spring; 22. Rubber resistance plate; 23. Press rod; 24. Ratchet; 25. Rack; 26. Positioning rod; 27. Return spring; 28. Auxiliary frame; 29. ​​Pull rod; 30. Positioning plate; 31. Guide groove; 32. Resistance block; 33. Tension spring; 34. Spring block; 35. Collecting tube; 36. Piston rod; 37. One-way intake valve pipe; 38. Collecting head; 39. One-way exhaust valve pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 - Figure 7 , an electromagnetic drive device for a radio frequency relay, comprising a mounting base 1, a shield 2 mounted on one side of the mounting base 1 and a coil 3 fixed on the inner wall of the shield 2, an armature 7 is arranged on one side of the top of the coil 3, a fixing base 11 is fixedly connected to one side of the mounting base 1, a static contact 12 is fixedly connected to one side of the top of the fixing base 11, a fixing plate 9 is fixedly connected to the outside of one side of the armature 7, a moving contact 10 is fixedly mounted on one side of the fixing plate 9 close to the top of the static contact 12, a support frame 13 is fixedly connected to one side of the top of the fixing base 11, a pressing rod 23 is laterally fixedly connected to one side of the fixing plate 9 close to the support frame 13, a contact cleaning component and a driving component are arranged on one side of the support frame 13, and a collecting and discharging component is arranged inside one side of the shield 2 close to the top of the support frame 13; the contact cleaning component comprises a disc 14 and two wiping brush plates 19, the disc 14 is rotatably mounted on the outside of one side of the support frame 13, and the two wiping brush plates 19 are symmetrically and laterally arranged on the outside of one side between the moving contact 10 and the static contact 12.

[0021] A mounting plate 4 is fixedly connected to the top of the coil 3, an iron core 5 is fixedly mounted on the outside of the top side of the mounting plate 4 close to the armature 7, a limiting frame 6 is fixedly mounted on the inside of the shield 2 close to the coil 3, one end of the armature 7 is longitudinally penetrated and slidably engaged with the outside of the top side of the limiting frame 6, and a limiting spring 8 is fixedly connected between one end of the armature 7 and the outside of one side of the limiting frame 6.

[0022] A reciprocating rod 15 is slidably installed on the outside of one side of the disc 14 through a bracket that passes through it horizontally. The reciprocating rod 15 is arranged in a horizontal T-shape. A bracket is slidably installed on the outside of one side of the reciprocating rod 15. A limiting column 17 is fixedly connected to the edge of one side of the disc 14. A sliding groove 16 is longitudinally installed on the inside of one side of the reciprocating rod 15 close to the limiting column 17. The limiting column 17 and the sliding groove 16 are slidably connected. An interference component is arranged on one end of the reciprocating rod 15 close to the two wiping brush plates 19.

[0023] The resistance assembly includes a mounting frame 18, which is fixedly mounted on the outside of one end of the reciprocating rod 15 close to the two wiping brush plates 19. A number of auxiliary rods 20 are fixedly mounted around the outer surface of one side of the two wiping brush plates 19 close to the mounting frame 18. One ends of the several auxiliary rods 20 are slidably mounted on the outside of one side of the mounting frame 18. Resistance springs 21 are sleeved and mounted on the outside of the several auxiliary rods 20. The two ends of the resistance springs 21 are respectively mounted on the outside of the wiping brush plates 19 and one side of the mounting frame 18.

[0024] Specifically, by setting up a plurality of auxiliary rods 20 and resistance springs 21, when the wiping brush plate 19 moves into the moving contact 10 and the stationary contact 12, the wiping brush plate 19 itself will generate a certain resistance and extrusion force between the moving contact 10 and the stationary contact 12, making the contact closer and making the overall moving wiping effect better.

[0025] A rubber contact plate 22 is fixedly mounted on the outside of the two wiping brush plates 19 on one side close to the moving contact 10 and the stationary contact 12 . The front section of the rubber contact plate 22 is arranged in an arc shape.

[0026] Specifically, by providing the arc-shaped rubber abutment plate 22 on one side of the wiping brush plate 19 , the wiping brush plate 19 can move more smoothly inside the moving contact 10 and the stationary contact 12 , and is less likely to interfere with or engage with the moving contact 10 and the stationary contact 12 .

[0027] The driving assembly includes a ratchet 24 and a rack 25. The ratchet 24 is fixedly mounted on the outside of one side of the disc 14. The center of the ratchet 24 is on the same central axis as the center of the disc 14. The rack 25 is longitudinally meshed and mounted on the outside of one side of the ratchet 24. A positioning rod 26 is longitudinally penetrated and slidably mounted inside the rack 25. The bottom end of the positioning rod 26 is fixedly mounted on the inside of one side of the shield 2. A reset spring 27 is sleeved on the outside of one side of the bottom end of the positioning rod 26. The two ends of the reset spring 27 are respectively mounted on one side of the rack 25 and the shield 2. The bottom end of the pressing rod 23 is in contact with the top end of the rack 25.

[0028] A trigger assembly is provided on the side of the rack 25 away from the ratchet 24; the trigger assembly includes a pull rod 29 and a spring block 34, the pull rod 29 is longitudinally arranged on the outside of one side of the rack 25, and the spring block 34 is fixedly installed on the outside of the side of the rack 25 close to the pull rod 29, the pull rod 29 is arranged in an inverted L shape, and the top side of the pull rod 29 is in contact with the top side of the pressing rod 23, and an auxiliary frame 28 is slidably installed through the outside of one side of the pull rod 29, and the bottom end of the auxiliary frame 28 is fixedly installed on the bottom wall of one side of the shield 2.

[0029] A positioning plate 30 is longitudinally arranged inside the side of the protective cover 2 close to the spring block 34, and a guide groove 31 is arranged inside the positioning plate 30, and a resistance block 32 is slidably installed inside the guide groove 31. The top end of the resistance block 32 is fixed to one side of the bottom end of the pull rod 29, and a plurality of tension springs 33 are fixedly connected between the bottom end of the resistance block 32 and the bottom wall of the guide groove 31 at equal intervals.

[0030] Specifically, when the pressing rod 23 is descending, the tension spring 33 will pull the resistance block 32 to move downward and reset synchronously inside the guide groove 31, so that the resistance block 32 moves back to the bottom of the guide groove 31, ensuring that the resistance block 32 is not at the top position of the guide groove 31, thereby ensuring that the subsequent spring block 34 will be engaged at the top position of the guide groove 31, so that when the subsequent resistance block 32 is lifted, the spring block 34 on its top can be squeezed out of the guide groove 31, ensuring the overall operation is stable.

[0031] In this embodiment, when the electromagnetic driving device is in use, first, when a suitable voltage is applied across the coil 3, an electric current will pass through the coil 3. The energized coil 3 will generate a magnetic field around it, and this magnetic field will magnetize the iron core 5, thereby enhancing the magnetic field strength. The generated magnetic field will exert an electromagnetic attraction force on the armature 7. When the electromagnetic attraction force is large enough, it can overcome the elastic force of the limit spring 8 and suck the armature 7 towards the iron core 5. The movement of the armature 7 drives the fixed plate 9 and the moving contact 10 connected to it to move downward synchronously, causing the moving contact 10 to close with the static contact 12. At the same time, during the downward movement of the fixed plate 9, it will drive the pressing rod 23 fixedly connected to one side to move downward synchronously. When the pressing rod 23 moves downward, it will squeeze and drive the rack 25 at the bottom to move downward under the guidance of the positioning rod 26. Through the existing one-way rotation structure design of the ratchet 24, the rack 25 will not drive the ratchet 24 and the disc 14 to rotate during the downward movement, so as to ensure that when the moving contact 10 and the static contact 12 are closed, the wiping brush plate 19 on one side will not perform telescopic cleaning movement. When the pressing rod 23 squeezes and drives the rack 25 to descend to a certain position, at this time, the spring catch 34 on one side of the rack 25 will abut and engage into the guiding groove 31 inside the positioning plate 30 on one side, thereby limiting the rack 25. At the same time, the return spring 27 at the bottom of the rack 25 is in a compressed state, so as to ensure that when the fixed plate 9 drives the moving contact 10 to move upward later, the rack 25 will be in a non-rebound state, avoiding the situation that the rack 25 moves back synchronously and causes the wiping brush plate 19 to start telescopic cleaning movement before the moving contact 10 and the static contact 12 are completely separated, resulting in movement interference and component damage, and ensuring the overall operation stability.

[0032] It should also be noted that when the current in the coil 3 is cut off, the magnetic field generated by the coil 3 quickly disappears, and the magnetism of the iron core 5 also disappears accordingly. At this time, the elastic force of the limit spring 8 will come into play, causing the armature 7 to return to its original position, thereby driving the fixed plate 9, the moving contact 10, and the pressing rod 23 to lift synchronously, so that the moving contact 10 is separated from the static contact 12, and the circuit is disconnected. When the armature 7 drives the pressing rod 23 to lift to a certain position, at this time, the separation of the moving contact 10 and the static contact 12 is about to be completed. At this time, the top end of the pressing rod 23 abuts against one end of the pull rod 29. After that, when the pressing rod 23 moves back a short distance, it will abut against and drive the pull rod 29 on one side to lift a certain distance synchronously. Through the lifting of the pull rod 29, the abutting block 32 in the guiding groove 31 at the bottom end on one side is driven to lift synchronously. When the abutting block 32 lifts, it will squeeze and abut against the spring catch 34 clamped on one side of the top end of the guiding groove 31, causing the spring catch 34 to be squeezed and contracted. When the spring catch 34 contracts to a certain distance, it will disengage from the guiding groove 31 inside the positioning plate 30. At this time, the originally compressed return spring 27 starts to rebound. Through the rebound of the return spring 27, the rack 25 at the top end is driven to move back synchronously. During the upward movement and return of the rack 25, it will drive the ratchet 24 engaged on one side to rotate. By the rotation of the ratchet 24, the disc 14 on one side is driven to rotate one circle. During the rotation of the disc 14, through the cooperation of the sliding groove 16 and the limit post 17, the reciprocating rod 15 is driven to reciprocate and stretch once. During the stretching of the reciprocating rod 15, the two wiping brush plates 19 symmetrically arranged on one side are driven to stretch synchronously once. When the wiping brush plates 19 stretch and operate, they will squeeze and abut between the moving contact 10 and the static contact 12, and wipe the contact surface between the moving contact 10 and the static contact 12 once. In this way, it can automatically and effectively remove impurities such as metal oxides and carbides generated by arc ablation on the surfaces of the moving contact 10 and the static contact 12. After removing the impurities, it can keep the good electrical contact state between the moving contact 10 and the static contact 12 all the time. The stable and low contact resistance helps to ensure the smooth transmission of current between the contacts, reduce the energy loss and distortion during the signal transmission process, and ensure the overall use effect and operation stability.

[0033] Embodiment 2: Please refer to Figure 1 , Figure 4 and Figure 8 , this embodiment further describes the first embodiment. A collection and discharge assembly is arranged inside one side of the protective cover 2 close to the top end of the support frame 13.

[0034] The collection and discharge assembly includes a collection cylinder 35 and a piston rod 36. The collection cylinder 35 is fixedly installed inside one side of the top end of the protective cover 2 close to the pressing rod 23. The piston rod 36 is longitudinally and slidably and hermetically installed inside the collection cylinder 35. The bottom end of the piston rod 36 is fixedly installed with one side of the top end of the pressing rod 23.

[0035] One side of the top end of the collection cylinder 35 is fixedly installed with a one-way intake valve pipe 37 and a one-way exhaust valve pipe 39. The input end of the one-way intake valve pipe 37 is conductively installed with a collection head 38. The input end of the collection head 38 is arranged outside one side of the two wiping brush plates 19. The output end of the one-way exhaust valve pipe 39 is installed through the outside of one side of the top end of the protective cover 2.

[0036] In this embodiment, when the moving contact 10 descends to engage with the static contact 12, the pressing rod 23 will drive the piston rod 36 fixedly connected to the top to descend synchronously when descending. The piston rod 36 moves downward inside the collection cylinder 35. With the conductive setting of the one-way intake valve pipe 37 and the collection head 38 on one side, a certain suction force is generated at the input end of the collection head 38, so that the fine debris and impurities adhered to the surface of the wiping brush plate 19 can be sucked and collected, ensuring the cleanliness of the surface of the wiping brush plate 19, ensuring stable long-term use and subsequent cleaning effects. When the moving contact 10 rises to separate from the static contact 12, the piston rod 36 moves upward and squeezes inside the collection cylinder 35. With the conductive setting of the one-way exhaust valve pipe 39 on one side, the fine debris and impurities just sucked and collected can be squeezed out from the inside of the collection cylinder 35 to the outside of the protective cover 2, automatically cleaning the inside of the collection cylinder 35 and ensuring the overall sustainable use effect.

[0037] It should also be noted that when the piston rod 36 moves downward for suction or upward for extrusion inside the collection cylinder 35, it can also suck and collect and squeeze out a certain amount of hot gas generated by the operation of the components inside the protective cover 2, playing a role in pumping and exhausting heat.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic drive device for a radio frequency relay, comprising a mounting base (1), a shield (2) mounted on one side of the mounting base (1), and a coil (3) fixed on the inner wall of the shield (2), characterized in that: An armature (7) is provided on one side of the top end of the coil (3); a fixed seat (11) is fixedly connected to one side of the mounting seat (1); a static contact (12) is fixedly connected to one side of the top end of the fixed seat (11); a fixed plate (9) is fixedly connected to the outside of one side of the armature (7); a moving contact (10) is fixedly mounted on the side of the fixed plate (9) close to the top end of the static contact (12); a support frame (13) is fixedly connected to one side of the top end of the fixed seat (11); a pressing rod (23) is transversely fixedly connected to one side of the fixed plate (9) close to the support frame (13); a contact cleaning component and a driving component are provided on one side of the support frame (13); and a collecting and discharging component is provided inside the side of the shield (2) close to the top end of the support frame (13); The contact cleaning assembly comprises a disc (14) and two wiping brush plates (19), wherein the disc (14) is rotatably mounted on the outside of one side of a support frame (13), and the two wiping brush plates (19) are symmetrically arranged laterally on the outside of one side between the moving contact (10) and the stationary contact (12).

2. The electromagnetic driving device of a radio frequency relay according to claim 1, characterized in that: The top end of the coil (3) is fixedly connected to a mounting plate (4), an iron core (5) is fixedly mounted on the outside of the top side of the mounting plate (4) close to the armature (7), a limiting frame (6) is fixedly mounted on the inside of the side of the shield (2) close to the coil (3), one end of the armature (7) is longitudinally penetrated and slidably engaged and mounted on the outside of the top side of the limiting frame (6), and a limiting spring (8) is connected and fixed between one end of the armature (7) and the outside of one side of the limiting frame (6).

3. The electromagnetic driving device of a radio frequency relay according to claim 1, characterized in that: A reciprocating rod (15) is slidably provided on the outside of one side of the disc (14) through a bracket that passes through the side of the disc (14). The reciprocating rod (15) is arranged in a transverse T-shape. A bracket is slidably provided on the outside of one side of the reciprocating rod (15). A limiting column (17) is fixedly connected to an edge of one side of the disc (14). A sliding groove (16) is longitudinally provided on the inside of a side of the reciprocating rod (15) close to the limiting column (17). The limiting column (17) and the sliding groove (16) are slidably connected. An end of the reciprocating rod (15) close to the two wiping brush plates (19) is provided with a resistance component.

4. The electromagnetic driving device of a radio frequency relay according to claim 3, characterized in that: The resistance assembly comprises a mounting frame (18), wherein the mounting frame (18) is fixedly mounted on the outside of one end of the reciprocating rod (15) close to two wiping brush plates (19), and a plurality of auxiliary rods (20) are fixedly mounted around the outer surface of one side of the two wiping brush plates (19) close to the mounting frame (18), and one end of each of the auxiliary rods (20) is slidably mounted on the outside of one side of the mounting frame (18), and a resistance spring (21) is sleeved and mounted on the outside of each of the auxiliary rods (20), and the two ends of the resistance spring (21) are respectively mounted on the outside of one side of the wiping brush plate (19) and the mounting frame (18).

5. The electromagnetic driving device of a radio frequency relay according to claim 4, characterized in that: A rubber contact plate (22) is fixedly mounted on the outside of one side of the two wiping brush plates (19) close to the moving contact (10) and the stationary contact (12), and the rubber contact plate (22) is arranged in an arc shape in a front cross-section.

6. The electromagnetic driving device of a radio frequency relay according to claim 1, characterized in that: The driving assembly comprises a ratchet (24) and a rack (25), wherein the ratchet (24) is fixedly mounted on the outside of one side of the disc (14), the center of the ratchet (24) and the center of the disc (14) are on the same central axis, the rack (25) is longitudinally meshedly mounted on the outside of one side of the ratchet (24), a positioning rod (26) is longitudinally penetrated and slidably mounted inside the rack (25), the bottom end of the positioning rod (26) is fixedly mounted on the inside of one side of the shield (2), a return spring (27) is sleeved on the outside of one side of the bottom end of the positioning rod (26), two ends of the return spring (27) are respectively mounted on one side of the rack (25) and the shield (2), and one side of the bottom end of the pressing rod (23) is in contact with one side of the top end of the rack (25).

7. The electromagnetic driving device of a radio frequency relay according to claim 6, characterized in that: A trigger assembly is provided on a side of the rack (25) away from the ratchet (24); The trigger assembly comprises a pull rod (29) and a spring block (34), wherein the pull rod (29) is longitudinally arranged on the outside of one side of the rack (25), and the spring block (34) is fixedly mounted on the outside of one side of the rack (25) close to the pull rod (29), and the pull rod (29) is arranged in an inverted L shape, and the top end of the pull rod (29) is in contact with the top end of the pressing rod (23). An auxiliary frame (28) is slidably mounted on the outside of one side of the pull rod (29), and the bottom end of the auxiliary frame (28) is fixedly mounted on the bottom wall of one side of the shield (2).

8. The electromagnetic driving device of a radio frequency relay according to claim 7, characterized in that: A positioning plate (30) is longitudinally arranged inside the side of the shield (2) close to the spring block (34), a guide groove (31) is arranged inside the positioning plate (30), a resistance block (32) is slidably installed inside the guide groove (31), the top end of the resistance block (32) is fixedly mounted on one side of the bottom end of the pull rod (29), and a plurality of tension springs (33) are fixedly connected at equal intervals between the bottom end of the resistance block (32) and the bottom wall of the guide groove (31).

9. The electromagnetic driving device of a radio frequency relay according to claim 1, characterized in that: The collecting and discharging assembly comprises a collecting cylinder (35) and a piston rod (36); the collecting cylinder (35) is fixedly mounted inside the protective cover (2) on one side near the top end of the pressing rod (23); the piston rod (36) is longitudinally slidably sealed inside the collecting cylinder (35); and the bottom end of the piston rod (36) is fixedly mounted on one side of the top end of the pressing rod (23).

10. The electromagnetic driving device of a radio frequency relay according to claim 9, characterized in that: A one-way air intake valve tube (37) and a one-way air exhaust valve tube (39) are fixedly installed through one side of the top end of the collecting cylinder (35); a collecting head (38) is installed at the input end of the one-way air intake valve tube (37); the input end of the collecting head (38) is arranged outside one side of the two wiping brush plates (19); and the output end of the one-way air exhaust valve tube (39) is installed through one side of the top end of the protective cover (2).

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