CN111799132B - High-power single-pole six-throw radio frequency coaxial relay - Google Patents
High-power single-pole six-throw radio frequency coaxial relay Download PDFInfo
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- CN111799132B CN111799132B CN202010688491.9A CN202010688491A CN111799132B CN 111799132 B CN111799132 B CN 111799132B CN 202010688491 A CN202010688491 A CN 202010688491A CN 111799132 B CN111799132 B CN 111799132B
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- 239000004020 conductor Substances 0.000 claims abstract description 71
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 70
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 25
- 239000012212 insulator Substances 0.000 claims description 20
- 244000273256 Phragmites communis Species 0.000 claims description 15
- 229910000906 Bronze Inorganic materials 0.000 claims description 6
- 229910052790 beryllium Inorganic materials 0.000 claims description 6
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical group [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000010974 bronze Substances 0.000 claims description 6
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000005284 excitation Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/12—Ventilating; Cooling; Heating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/14—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/60—Contact arrangements moving contact being rigidly combined with movable part of magnetic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Near-Field Transmission Systems (AREA)
- Transmitters (AREA)
Abstract
The invention discloses a high-power single-pole six-throw radio frequency coaxial relay which comprises a cylindrical shell, a D-type connector connected to the top end of the shell, seven N-type radio frequency connectors connected to the bottom end of the shell, and a control circuit board, an electromagnetic system and a radio frequency system which are arranged in the shell, wherein the control circuit board is connected with the electromagnetic system; the coil of the electromagnetic system is connected with the D-type connector through the control circuit board to provide excitation voltage, so that the radio frequency channel of the radio frequency system is driven to be conducted, and when the coil of the electromagnetic system is powered off, namely, the coil is deenergized, the radio frequency channel is turned off under the action of reset force. According to the invention, through the modification of the variable diameter design of the radio frequency reed and the heat dissipation structure of the inner conductor, the working frequency range is expanded, the heat dissipation performance is improved, and the working frequency is improved to 0.03-18GHz, so that the average radio frequency transmission power is improved, and the engineering application range is increased.
Description
Technical Field
The invention relates to the field of radio frequency coaxial relays, in particular to a high-power single-pole six-throw radio frequency coaxial relay.
Background
The highest working frequency of the existing N-type interface single-pole six-throw radio frequency coaxial relay is 0.03 GHz-12.4 GHz. The highest operating frequency is determined by the radio frequency transmission channel, which consists of a circular coaxial transmission line and a rectangular coaxial transmission line, and the characteristic impedance is ensured to be 50Ω on the whole transmission line. The cross section of the circular coaxial transmission line is shown in fig. 1, wherein in fig. 1, D is the effective inner diameter of the outer conductor, and the unit is millimeter (mm); d is the effective outer diameter of the inner conductor in millimeters (mm); epsilon r is the relative dielectric constant of the insulating medium; mu r is the relative permeability of the insulating medium. Characteristic impedance calculation, see formula (1): (1) ; theoretical cut-off frequency calculation, see formula (2): /(I) (2) ; Wherein f C is the cut-off frequency in hertz (GHz); lambda C is the cut-off wavelength in millimeters (mm); c 0 is the propagation speed of electromagnetic waves in free space, or the speed of light:
c 0＝299792458±1.2m/s≈3×108m/s＝3×1011 mm/s. The rectangular coaxial transmission line cross section is shown in fig. 2, and the characteristic impedance calculation is shown in table 1.
Table 1 rectangular coaxial line characteristics
The maximum working frequency of the existing N-type interface radio frequency coaxial relay with single-pole six-throw and above is 0.03 GHZ-12.4 GHz, and D, d, W, W', t, b and epsilon r are determined according to the formula (1), the formula (2) and the table 1.
When radio frequency power is transmitted, radio frequency signals are transmitted to the rectangular coaxial line through the circular coaxial line and then to the circular coaxial line, the radio frequency reed in the rectangular coaxial line is used for completing the switching function of the radio frequency signals, holes are drilled on the radio frequency reed, the radio frequency reed is driven to move up and down by an insulating material to pass through the radio frequency reed holes, the effective conductor section is reduced and the conductor resistance is increased due to the skin effect, and higher heat is accumulated on the insulating material so as to burn the insulating material.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-power single-pole six-throw radio frequency coaxial relay, which expands the working frequency range, improves the heat dissipation performance, and improves the working frequency to 0.03-18GHz, thereby improving the radio frequency average transmission power and increasing the engineering application range.
The technical scheme of the invention is as follows:
The high-power single-pole six-throw radio frequency coaxial relay comprises a cylindrical shell, a D-type connector connected to the top end of the shell, seven N-type radio frequency connectors connected to the bottom end of the shell, and a control circuit board, an electromagnetic system and a radio frequency system which are arranged in the shell;
the electromagnetic system comprises an upper yoke, a lower yoke, a screw rod connected between the upper yoke and the lower yoke, six iron cores arranged between the upper yoke and the lower yoke and coils wound on each iron core, wherein each iron core comprises an upper iron core and a lower iron core, the upper iron core is positioned right above the lower iron core, a through hole which is vertically communicated is formed in the central axis of the lower iron core, which is fixed on the lower yoke, a pushing shaft extending towards the lower iron core is fixed on the upper iron core, the pushing shaft sequentially penetrates through the through hole of the lower iron core and the lower yoke from top to bottom, and the coils of the electromagnetic system are all connected with a D-type connector through a control circuit board to realize power supply;
The radio frequency system comprises a radio frequency cavity, six push rods, radio frequency reeds, seven outer conductors and seven inner conductors, wherein the radio frequency reeds are fixedly connected to each push rod and are of a strip-shaped structure, six guide grooves with notches upwards are formed in the radio frequency cavity, a spring and a push rod are arranged in each guide groove, two ends of the spring are respectively contacted with the bottom of the guide groove and the bottom of the push rod, each push rod is coaxial with a pushing shaft of the electromagnetic system, a perforation is formed in each radio frequency reed, each horizontally arranged radio frequency reed is fixedly sleeved on the corresponding push rod through the perforation, the inner end of each radio frequency reed faces to the axis of the radio frequency cavity, a moving gap for the radio frequency reed to move up and down is formed in the radio frequency cavity, and the part of each radio frequency reed, which is located at the periphery of the perforation, is of a variable diameter structure, namely, two long sides of each radio frequency reed, which are located at the periphery of the perforation, are provided with symmetrical arc-shaped protruding structures, so that the width of the radio frequency reed, which is located at the periphery of the perforation, is larger than the width of the radio frequency reed; the seven outer conductors are connected to the bottom end of the radio frequency cavity, one outer conductor is coaxial with the radio frequency cavity, the other six outer conductors are located on the periphery of one outer conductor, each outer conductor is internally provided with an installation hole penetrating up and down, each installation hole is internally provided with a toothed ring, each inner ring of each toothed ring is fixedly provided with an insulator, the top end of each inner conductor penetrates through the corresponding insulator from bottom to top and stretches into the radio frequency cavity, the top ends of the other six inner conductors except the inner conductor located at the axial position face the outer end part of the corresponding radio frequency reed, the inner end parts of the six radio frequency reeds are located above the inner conductor located at the axial position, the inner ring of each toothed ring is of a gear ring structure, the outer ring of each insulator is of a gear ring structure, each insulator and the corresponding toothed ring are of a spline connection structure of meshing teeth, each inner ring of the inner conductor is provided with straight knurls, the outer wall of the inner conductor in the insulator is of a straight knurl structure, and the inner conductor is of a straight knurl connection structure of the straight knurls; the coil of the electromagnetic system is electrified, the upper iron core drives the pushing shaft to move downwards, the pushing shaft pushes the pushing rods to move downwards, each pushing rod drives the corresponding radio frequency reed to move downwards, and the six radio frequency reeds are in contact connection with the corresponding inner conductor to conduct the radio frequency channel.
Six remote controller magnetic switches are connected to the control circuit board, and coils of the six remote controller magnetic switches are connected with the D-type connector through the control circuit board to realize power supply.
The bottom end of the outer conductor of the radio frequency system is fixed on the upper end face of the flange plate at the bottom end of the shell, and the lower yoke of the electromagnetic system is fixedly connected to the top end of the radio frequency cavity.
The push rod of the radio frequency system comprises an upper push rod and a lower push rod, wherein the top end of the lower push rod is provided with an upward extending sleeve rod, the bottom end of the upper push rod is provided with a sleeve rod positioning groove, a through hole on the radio frequency reed is sleeved on the sleeve rod, the sleeve rod positioning groove of the upper push rod is sleeved on the sleeve rod, and the bottom end of the upper push rod is contacted with the upper end face of the radio frequency reed, so that the radio frequency reed is clamped between the upper push rod and the lower push rod.
The radio frequency cavity and the six radio frequency reeds form a rectangular coaxial transmission line, and an air medium is filled between the radio frequency cavity and the radio frequency reeds.
The outer conductor of the radio frequency system is a brass surface nickel-plated outer conductor, the inner conductor is a beryllium bronze surface hard-plated inner conductor, the radio frequency reed is a beryllium bronze surface hard-plated radio frequency reed, the tooth-shaped ring is a pure copper surface silver-plated tooth-shaped ring, the radio frequency cavity is an aluminum alloy surface nickel-plated cavity, and the push rod is a polytetrafluoroethylene push rod.
The invention has the advantages that:
(1) When high-power radio frequency signals are transmitted, the radio frequency reed is provided with a perforation at the push rod, the effective conductor section is reduced and the conductor resistance is increased due to the skin effect, the push rod is concentrated by heat, the push rod is made of non-metal materials, the heat resistance is poor, and the push rod is invalid at the position when the high-power radio frequency signals are transmitted. The transmission capability of high-power radio frequency signals is enhanced.
(2) When high-power radio frequency signals are transmitted, heat conduction is a main mode of heat transfer, and insulators are in contact with the outside on the whole radio frequency channel; the inner conductor and the corresponding insulator are of straight knurled spline connection structures, so that the contact area of the inner conductor and the insulator is increased, the insulator and the corresponding tooth-shaped ring are of engaged tooth spline connection structures, so that the contact area of the inner conductor and the insulator is increased, the purpose of rapid heat dissipation is achieved, and the minimum radio frequency average power of a transmission channel is 12.4GHz (120W) and is improved to 18GHz (150W).
The working frequency of the invention is in the range of 0.03 GHZ-18 GHz, and the technical indexes are as follows: voltage standing wave ratio 1.6 (max); insertion loss: 0.65dB (max); isolation 60dB (min); the average power of radio frequency transmission reaches the minimum 18GHz (150W).
Drawings
Fig. 1 is a cross-sectional view of a circular coaxial transmission line.
Fig. 2 is a cross-sectional view of a rectangular coaxial transmission line.
Fig. 3 is a front view of the present invention.
Fig. 4 is a bottom view of the present invention.
Fig. 5 is a circuit connection diagram of the present invention.
Fig. 6 is a schematic diagram of the electromagnetic system of the present invention.
Fig. 7 is a schematic structural diagram of the radio frequency system of the present invention.
Figure 8 is a schematic diagram of the structure of the RF reed of the present invention.
Fig. 9 is a schematic view of the structure of the toothed ring of the present invention.
Fig. 10 is a schematic structural view of the inner conductor of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 3 and 4, the high-power single-pole six-throw radio frequency coaxial relay comprises a cylindrical shell 1, a D-type connector 2 connected to the top end of the shell 1, seven N-type radio frequency connectors 3 connected to the bottom end of the shell 1, and a control circuit board 4, an electromagnetic system 5 and a radio frequency system 6 which are arranged in the shell 1; the bottom end of the outer conductor of the radio frequency system 6 is fixed on the upper end surface of the flange 7 at the bottom end of the shell, and the lower yoke of the electromagnetic system 5 is fixedly connected with the top end of the radio frequency cavity of the radio frequency system 6;
Referring to fig. 6, the electromagnetic system 5 includes an upper yoke 51, a lower yoke 52, a screw 53 connected between the upper yoke 51 and the lower yoke 52, six cores arranged between the upper yoke 51 and the lower yoke 52, and coils 54 wound on each core, each core includes an upper core 55 and a lower core 56, the upper core 55 is located right above the lower core 56, the lower core 56 is fixed on the lower yoke 51, a through hole penetrating up and down is provided at the central axis of the lower core 56, a pushing shaft 57 extending in the downward core direction is fixed on the upper core 55, the pushing shaft 57 sequentially passes through the through hole of the lower core 56 and the lower yoke 52 from top to bottom, and the coils 54 of the electromagnetic system (i.e. coils L7-L12 in fig. 5) are all connected with terminals corresponding to the D-type connector 2 through the control circuit board 4 to realize power supply;
Referring to fig. 7-10, the radio frequency system 6 includes a radio frequency cavity 61, six push rods, a radio frequency reed 62 fixedly connected to each push rod and having a strip structure, seven outer conductors 63 and seven inner conductors 64, six guide slots with upward notches are provided on the radio frequency cavity 61, a spring 65 and a push rod are provided in each guide slot, two ends of the spring are respectively contacted with the bottom of the guide slot and the bottom of the push rod, each push rod is coaxial with a push shaft 57 of the electromagnetic system, each radio frequency reed 62 is provided with a perforation, each push rod includes an upper push rod 66 and a lower push rod 67, the top end of the lower push rod 67 is provided with a sleeve rod extending upwards, the bottom end of the upper push rod 66 is provided with a sleeve rod positioning slot, the perforation 68 on the radio frequency reed 62 is sleeved on the sleeve rod, the bottom end of the upper push rod 66 is contacted with the upper end surface of the radio frequency reed 62 so as to clamp the radio frequency reed 66 between the upper push rod 67, the inner end of each radio frequency reed 62 faces the bottom of the guide slot, the radio frequency cavity 61 is coaxial with the push shaft center of the push rod 57, the radio frequency reed 62 is provided with a perforation 68, and the radio frequency reed 62 is arranged at the periphery of the perforation, and the perforation 68 is located at the periphery of the two radial sides of the radio frequency reed 62, and the perforation is located at the periphery of the two radial positions of the radio frequency reed 62, the perforation structure is arranged at the periphery of the periphery 68, and the perforation is located at the periphery of the two sides of the radio frequency reed 62, and the perforation is located at the periphery of the perforation 62, and is located at the periphery of the perforation 62; seven outer conductors 63 are connected to the bottom end of the radio frequency cavity 61, one outer conductor 63 is coaxial with the radio frequency cavity 61, the other six outer conductors 63 are located on the periphery of one outer conductor 63, each outer conductor 63 is internally provided with a mounting hole which penetrates through from top to bottom, each mounting hole is internally provided with a tooth ring 610, each tooth ring 610 is internally provided with an insulator 611, the top end of each inner conductor 64 penetrates through the corresponding insulator 611 from bottom to top and stretches into the radio frequency cavity 61, other six inner conductors 64 except the inner conductor 64 located at the axial position are respectively located above the corresponding outer end of one radio frequency reed 62, the inner end of each radio frequency reed 62 is located above the corresponding inner conductor 64 at the axial position, each tooth ring 610 is internally provided with a tooth ring structure 612, each insulator 611 and the corresponding tooth ring 610 are in a spline connection structure of meshing teeth, each insulator 611 is internally provided with straight knurls, the outer wall of the inner conductor 64 is sleeved with straight knurls 613, and the inner conductor 64 is in a straight knurls structure of the corresponding insulator 64; the radio frequency cavity 61 and the six radio frequency reeds 62 form a rectangular coaxial transmission line, and an air medium is filled between the radio frequency cavity 61 and the radio frequency reeds 62; the outer conductor 63 of the radio frequency system is an outer conductor with nickel plated on the surface of brass, the inner conductor 64 is an inner conductor with hard gold plated on the surface of beryllium bronze, the radio frequency reed 62 is a radio frequency reed with hard gold plated on the surface of beryllium bronze, the toothed ring 610 is a toothed ring with silver plated on the surface of pure copper, the radio frequency cavity 61 is a cavity with nickel plated on the surface of aluminum alloy, and the upper push rod 66 and the lower push rod 67 are polytetrafluoroethylene push rods.
Referring to fig. 6 to 10, when the coil 54 of the electromagnetic system is energized, the lower core 56 generates a suction force to the upper core 55, the magnitude of the suction force increases with an increase in the voltage of the coil 54, and when the suction force is greater than a mechanical reaction force, the upper core 55 drives the pushing shaft 57 to move toward the lower core 56, the voltage of the coil 54 decreases, the suction force decreases, and when the suction force is less than the mechanical reaction force, the pushing shaft 57 drives the upper core 55 to reset. The calculation of the electromagnetic attraction force is shown in the following formula (3) and formula (4):
wherein F-electromagnetic attraction, B 0 -air gap magnetic induction intensity, mu 0 -vacuum magnetic conductivity coefficient, S-is pole shoe area, I-coil current, N-coil turns and delta-air gap length;
when the upper iron core 55 drives the pushing shaft 57 to move downwards, the pushing shaft 57 pushes the push rods to move downwards, each push rod drives the corresponding radio frequency reed 62 to move downwards, and the six radio frequency reeds 62 are in contact connection with the corresponding inner conductor 64 to conduct a radio frequency channel; the spring 65 is deformed by pressure, and when the coil 54 is de-energized, the restoring force of the spring 65 pushes the push rod, which drives the radio frequency reed 62 to restore to the original state, and separates from the inner conductor 64.
Six remote controller magnetic switches 8 (namely, switches S1-S6 in FIG. 5) are connected to the control circuit board, and coils of the six remote controller magnetic switches 8 (namely, coils L1-L6 in FIG. 5) are connected with corresponding terminals of the D-type connector 3 through the control circuit board to realize power supply.
Referring to fig. 5, when 28V excitation voltage is applied to the ends 1 and 7 of the d connector, power is supplied to the coil L7 of the electromagnetic system 5 and the coil L1 of the remote controller magnetic switch 8, the radio frequency channel driving the J1 and the remote controller magnetic switch 8 thereof are turned on, and after the excitation is removed, the J1 radio frequency channel and the remote controller magnetic switch 8 are simultaneously turned off under the action of the restoring force of the spring 65 and the restoring force of the reed, and the other channels are similar. JC is a public end, the diode V7 has reverse polarity protection function, and the diodes V1-V6 have coil reverse peak inhibition function.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The high-power single-pole six-throw radio frequency coaxial relay is characterized in that: the device comprises a cylindrical shell, a D-type connector connected to the top end of the shell, seven N-type radio frequency connectors connected to the bottom end of the shell, and a control circuit board, an electromagnetic system and a radio frequency system which are arranged in the shell;
the electromagnetic system comprises an upper yoke, a lower yoke, a screw rod connected between the upper yoke and the lower yoke, six iron cores arranged between the upper yoke and the lower yoke and coils wound on each iron core, wherein each iron core comprises an upper iron core and a lower iron core, the upper iron core is positioned right above the lower iron core, a through hole which is vertically communicated is formed in the central axis of the lower iron core, which is fixed on the lower yoke, a pushing shaft extending towards the lower iron core is fixed on the upper iron core, the pushing shaft sequentially penetrates through the through hole of the lower iron core and the lower yoke from top to bottom, and the coils of the electromagnetic system are all connected with a D-type connector through a control circuit board to realize power supply;
The radio frequency system comprises a radio frequency cavity, six push rods, radio frequency reeds, seven outer conductors and seven inner conductors, wherein the radio frequency reeds are fixedly connected to each push rod and are of a strip-shaped structure, six guide grooves with notches upwards are formed in the radio frequency cavity, a spring and a push rod are arranged in each guide groove, two ends of the spring are respectively contacted with the bottom of the guide groove and the bottom of the push rod, each push rod is coaxial with a pushing shaft of the electromagnetic system, a perforation is formed in each radio frequency reed, each horizontally arranged radio frequency reed is fixedly sleeved on the corresponding push rod through the perforation, the inner end of each radio frequency reed faces to the axis of the radio frequency cavity, a moving gap for the radio frequency reed to move up and down is formed in the radio frequency cavity, and the part of each radio frequency reed, which is located at the periphery of the perforation, is of a variable diameter structure, namely, two long sides of each radio frequency reed, which are located at the periphery of the perforation, are provided with symmetrical arc-shaped protruding structures, so that the width of the radio frequency reed, which is located at the periphery of the perforation, is larger than the width of the radio frequency reed; the seven outer conductors are connected to the bottom end of the radio frequency cavity, one outer conductor is coaxial with the radio frequency cavity, the other six outer conductors are located on the periphery of one outer conductor, each outer conductor is internally provided with an installation hole penetrating up and down, each installation hole is internally provided with a toothed ring, each inner ring of each toothed ring is fixedly provided with an insulator, the top end of each inner conductor penetrates through the corresponding insulator from bottom to top and stretches into the radio frequency cavity, the top ends of the other six inner conductors except the inner conductor located at the axial position face the outer end part of the corresponding radio frequency reed, the inner end parts of the six radio frequency reeds are located above the inner conductor located at the axial position, the inner ring of each toothed ring is of a gear ring structure, the outer ring of each insulator is of a gear ring structure, each insulator and the corresponding toothed ring are of a spline connection structure of meshing teeth, each inner ring of the inner conductor is provided with straight knurls, the outer wall of the inner conductor in the insulator is of a straight knurl structure, and the inner conductor is of a straight knurl connection structure of the straight knurls; the coil of the electromagnetic system is electrified, the upper iron core drives the pushing shaft to move downwards, the pushing shaft pushes the pushing rods to move downwards, each pushing rod drives the corresponding radio frequency reed to move downwards, and the six radio frequency reeds are in contact connection with the corresponding inner conductor to conduct a radio frequency channel;
Six remote controller magnetic switches are connected to the control circuit board, and coils of the six remote controller magnetic switches are connected with the D-type connector through the control circuit board to realize power supply;
The bottom end of the outer conductor of the radio frequency system is fixed on the upper end face of the flange plate at the bottom end of the shell, and the lower yoke of the electromagnetic system is fixedly connected to the top end of the radio frequency cavity.
2. The high power single pole six throw radio frequency coaxial relay of claim 1, wherein: the push rod of the radio frequency system comprises an upper push rod and a lower push rod, wherein the top end of the lower push rod is provided with an upward extending sleeve rod, the bottom end of the upper push rod is provided with a sleeve rod positioning groove, a through hole on the radio frequency reed is sleeved on the sleeve rod, the sleeve rod positioning groove of the upper push rod is sleeved on the sleeve rod, and the bottom end of the upper push rod is contacted with the upper end face of the radio frequency reed, so that the radio frequency reed is clamped between the upper push rod and the lower push rod.
3. The high power single pole six throw radio frequency coaxial relay of claim 1, wherein: the radio frequency cavity and the six radio frequency reeds form a rectangular coaxial transmission line, and an air medium is filled between the radio frequency cavity and the radio frequency reeds.
4. The high power single pole six throw radio frequency coaxial relay of claim 1, wherein: the outer conductor of the radio frequency system is a brass surface nickel-plated outer conductor, the inner conductor is a beryllium bronze surface hard-plated inner conductor, the radio frequency reed is a beryllium bronze surface hard-plated radio frequency reed, the tooth-shaped ring is a pure copper surface silver-plated tooth-shaped ring, the radio frequency cavity is an aluminum alloy surface nickel-plated cavity, and the push rod is a polytetrafluoroethylene push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010688491.9A CN111799132B (en) | 2020-07-16 | 2020-07-16 | High-power single-pole six-throw radio frequency coaxial relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010688491.9A CN111799132B (en) | 2020-07-16 | 2020-07-16 | High-power single-pole six-throw radio frequency coaxial relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111799132A CN111799132A (en) | 2020-10-20 |
| CN111799132B true CN111799132B (en) | 2024-06-07 |
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