CN110277608B - Failure protection type single-pole double-throw radio frequency coaxial switch - Google Patents
Failure protection type single-pole double-throw radio frequency coaxial switch Download PDFInfo
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- CN110277608B CN110277608B CN201910649651.6A CN201910649651A CN110277608B CN 110277608 B CN110277608 B CN 110277608B CN 201910649651 A CN201910649651 A CN 201910649651A CN 110277608 B CN110277608 B CN 110277608B
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- magnetic steel
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- cover plate
- push rod
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/11—Auxiliary devices for switching or interrupting by ferromagnetic devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
- H01P1/125—Coaxial switches
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- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention belongs to the technical field of electromechanical switches, and relates to a radio frequency coaxial switch. A failure protection type single-pole double-throw radio frequency coaxial switch comprises an electromagnetic control system and a microwave transmission system; the electromagnetic control system comprises a relay assembly and a cover plate assembly; the microwave transmission system comprises a transmission cavity assembly; the relay assembly controls the cover plate assembly through an electromagnetic field generated by power-on, so that the microwave path is switched on and off. According to the failure protection type single-pole double-throw radio frequency switch, through the design of a novel electromagnetic control system, the use of action parts such as a spring, an elastic sheet and the like is eliminated, the reliability of the radio frequency coaxial switch is improved, and the switching service life is prolonged.
Description
Technical Field
The invention belongs to the technical field of electromechanical switches, and relates to a radio frequency coaxial switch.
Background
The failure protection type single-pole double-throw radio frequency coaxial switch is used as a microwave passive device, mainly realizes transmission and switching of microwave signals, and is widely applied to the fields of automatic test systems, radars and communication. The invention patent with application number 201810500302.3 discloses a failure protection type high-power single-pole double-throw coaxial switch, which comprises a coil mounting plate, an iron core, a coil, magnetic steel, a shell, an armature block, a pressing sheet, a cover plate, a transmission reed, a medium seat, a spring and a pin shaft. The device mainly uses the structural design of spring and shell fragment to realize switching function, and spring and shell fragment can have fatigue life at the switch switching in-process, and the switch reliability is low, the switching life-span is short.
Disclosure of Invention
The invention aims to provide an improved failure protection type single-pole double-throw radio frequency coaxial switch, which overcomes the defects in the prior art through the design of a novel electromagnetic control system, improves the reliability of the radio frequency coaxial switch and prolongs the switching life of the switch.
In order to achieve the purpose, the invention adopts the technical scheme that: a failure protection type single-pole double-throw radio frequency coaxial switch comprises an electromagnetic control system and a microwave transmission system; the electromagnetic control system comprises a relay assembly and a cover plate assembly; the microwave transmission system comprises a transmission cavity assembly; the relay assembly controls the cover plate assembly through an electromagnetic field generated by power-on, so that the microwave path is switched on and off.
The relay assembly comprises two coil assemblies, two guide sleeves and a relay seat; the coil assembly and the guide sleeve are sequentially installed in the relay seat from the upper part.
The cover plate component comprises small magnetic steel, a push rod, a cover plate and a transmission reed; the push rod penetrates through a through hole in the middle of the cover plate, the upper part of the push rod is provided with small magnetic steel, and the lower end of the push rod is riveted with a transmission reed; the upper part of the push rod is arranged in the guide sleeve; the lower part of the push rod and the transmission reed are arranged in the cavity of the transmission cavity assembly and can move up and down in the cavity; the cavity and the cover plate are fixed through bolts.
As a further improvement of the invention, the magnetic poles of the magnetic steel in one coil assembly are the same as the magnetic poles of the small magnetic steel below the magnetic steel; the magnetic pole of the magnetic steel in the other coil component is different from the magnetic pole of the small magnetic steel below the magnetic steel.
As a further improvement of the invention, the upper part of the push rod is provided with a cylindrical groove; the small magnetic steel is arranged in the cylindrical groove; a gap is reserved between the outer wall of the cylindrical groove and the inner wall of the guide sleeve, so that the cylindrical groove can move up and down in the guide sleeve.
As a further improvement of the invention, the small magnetic steel is connected with the cylindrical groove of the push rod in an injection molding mode.
According to the failure protection type single-pole double-throw radio frequency switch, through the design of a novel electromagnetic control system, the use of action parts such as a spring, an elastic sheet and the like is eliminated, the reliability of the radio frequency coaxial switch is improved, and the switching service life is prolonged.
Drawings
FIG. 1 is a schematic assembly diagram of a failsafe single pole double throw RF switch of the present invention;
FIG. 2 is an exploded view of the failsafe single pole double throw RF switch of the present invention;
FIG. 3 is a schematic diagram of a relay assembly;
FIG. 4 is a schematic view of a cover plate assembly;
fig. 5 is a schematic view of a cover plate assembly.
Detailed description of the preferred embodiments
The fail-safe single-pole double-throw rf switch of the present invention will be described and explained in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the failsafe single-pole double-throw rf switch of the present invention mainly includes an electromagnetic control system composed of a relay assembly 11 and a cover plate assembly 10, and a microwave transmission system composed of a transmission cavity assembly 8.
As shown in fig. 2 and 3, the relay assembly 11 includes two guide sleeves 2, a first coil assembly 1, a second coil assembly 9, a relay holder 3; the two guide sleeves 2 are arranged in through holes formed in the relay base 3 from the upper part, and the guide sleeves 3 are fixed in the relay base 3 through clamping rings in the through holes. The first coil block 1 and the second coil block 9 are inserted into the through hole of the relay holder 3 from the upper portion and are in contact with the upper portion of the guide sleeve 2.
As shown in fig. 2, 4 and 5, the cover plate assembly 10 includes two small magnetic steels 4, two push rods 5, a cover plate 6, and two transmission reeds 7; the push rod 5 passes through a through hole in the middle of the cover plate 6. The upper portion of push rod 5 is equipped with cylinder groove 12, and little magnet steel 4 is installed in cylinder groove 12 through the mode of moulding plastics, and the lower extreme riveting of push rod 5 transmits reed 7.
As shown in fig. 2, the cylindrical groove 12 in the upper part of the push rod 5 is fitted into the guide sleeve 2 from below the relay holder 3. The lower part of the push rod 5 and the transmission reed 7 are arranged in a cavity of the transmission cavity component 8 and can move up and down in the cavity; an inner conductor is mounted in the cavity. The cavity and the cover plate 6 of the cover plate assembly 10 are fixed through bolts, so that the relay assembly 11, the cover plate assembly 10 and the transmission cavity assembly 8 are assembled into the failure protection type single-pole double-throw radio frequency switch.
The switching principle and action relation of the failure protection type single-pole double-throw radio frequency switch is as follows:
the first coil assembly 1 and the components below the first coil assembly form a first microwave path, and the second coil assembly 2 and the components below the second coil assembly form a second microwave path.
And under the non-power-on state, the first microwave path of the radio frequency coaxial switch is switched on, and the second microwave path of the radio frequency coaxial switch is switched off. The electromagnetic part corresponding to the first microwave path, the magnetic pole of the magnetic steel contained in the first coil component 1 is the same as the magnetic pole of the small magnetic steel 4 below the magnetic steel, so that the same poles repel each other, the small magnetic steel 4 is pushed to move downwards under the action of the repulsive force of the first coil component 1, and the small magnetic steel 4, the push rod 5 and the transmission reed 7 are fixed into a whole, so that the small magnetic steel 4 drives the push rod 5 and the transmission reed 7 to move downwards, and the transmission reed 7 is contacted with the inner conductor in the cavity of the transmission cavity component 8, so that the first microwave path is conducted. And in the electromagnetic part corresponding to the second microwave path, the magnetic steel magnetic pole in the second coil component 9 is different from the magnetic pole of the small magnetic steel 4 below the second coil component, so that the opposite poles attract each other, the small magnetic steel 4 drives the push rod 5 and the transmission reed 7 to move upwards under the attraction action of the second coil component 9, the transmission reed 7 is disconnected from the inner conductor in the cavity of the transmission cavity component 8, and the second microwave path is disconnected.
And in the power-on state, the first microwave path of the radio frequency coaxial switch is disconnected, and the second microwave path of the radio frequency coaxial switch is connected. And the electromagnetic part corresponds to the first microwave path, the electromagnetic field generated by electrifying the first coil component 1 counteracts the static magnetic field of the magnetic steel in the first coil component 1, and the electromagnetic field generated by electrifying the first coil component 1 is different from the magnetic pole of the small magnetic steel 4 below the first coil component, so that the different poles attract each other, and under the attraction action of the first coil component 1, the small magnetic steel 4 is attracted to move upwards, and the small magnetic steel 4, the push rod 5 and the transmission reed 7 are fixed into a whole, so that the push rod 5 and the transmission reed 7 are driven by the small magnetic steel 4 to move upwards, the transmission reed 7 is disconnected from the inner conductor in the cavity of the transmission cavity component 8, and the first microwave path is disconnected. And an electromagnetic part corresponding to the second microwave path, wherein an electromagnetic field generated by electrifying the second coil assembly 9 counteracts a static magnetic field of magnetic steel in the second coil assembly 9, the electromagnetic field generated by the second coil assembly 9 has the same magnetic pole as the magnetic pole of the small magnetic steel 4 below the second coil assembly 9, so that the same poles repel each other, under the action of the repulsive force of the second coil assembly 9, the small magnetic steel 4 drives the push rod 5 and the transmission reed 7 to move downwards, the transmission reed 7 is in contact with an inner conductor in the cavity of the transmission cavity assembly 8, and the second microwave path is conducted.
And when the power is off, the states of the first microwave channel conduction and the second microwave channel disconnection are recovered.
Claims (4)
1. A failure protection type single-pole double-throw radio frequency coaxial switch comprises an electromagnetic control system and a microwave transmission system; the method is characterized in that: the electromagnetic control system comprises a relay assembly and a cover plate assembly; the microwave transmission system comprises a transmission cavity assembly; the relay assembly comprises two coil assemblies, two guide sleeves and a relay seat; the coil assembly and the guide sleeve are sequentially arranged in the relay seat from the upper part; the cover plate component comprises small magnetic steel; the magnetic pole of the magnetic steel in one coil assembly is the same as the magnetic pole of the small magnetic steel below the magnetic steel; the magnetic pole of the magnetic steel in the other coil component is different from the magnetic pole of the small magnetic steel below the magnetic steel; the relay assembly controls the cover plate assembly through the interaction force of the electromagnetic field and the net magnetic field, so that the conduction and the switching of different microwave paths are realized.
2. The failsafe single pole double throw radio frequency coaxial switch of claim 1, wherein: the cover plate component comprises a push rod, a cover plate and a transmission reed; the push rod penetrates through a through hole in the middle of the cover plate, the upper part of the push rod is provided with small magnetic steel, and the lower end of the push rod is riveted with a transmission reed; the upper part of the push rod is arranged in the guide sleeve; the lower part of the push rod and the transmission reed are arranged in the cavity of the transmission cavity assembly and can move up and down in the cavity; the cavity and the cover plate are fixed through bolts.
3. The failsafe single pole double throw radio frequency coaxial switch of claim 2, wherein: the upper part of the push rod is provided with a cylindrical groove; the small magnetic steel is arranged in the cylindrical groove; a gap is reserved between the outer wall of the cylindrical groove and the inner wall of the guide sleeve, so that the cylindrical groove can move up and down in the guide sleeve.
4. The failsafe single pole double throw radio frequency coaxial switch of claim 3, wherein: the small magnetic steel is connected with the cylindrical groove of the push rod in an injection molding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910649651.6A CN110277608B (en) | 2019-07-18 | 2019-07-18 | Failure protection type single-pole double-throw radio frequency coaxial switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910649651.6A CN110277608B (en) | 2019-07-18 | 2019-07-18 | Failure protection type single-pole double-throw radio frequency coaxial switch |
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| CN110277608A CN110277608A (en) | 2019-09-24 |
| CN110277608B true CN110277608B (en) | 2021-11-02 |
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| CN201910649651.6A Active CN110277608B (en) | 2019-07-18 | 2019-07-18 | Failure protection type single-pole double-throw radio frequency coaxial switch |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965542A (en) * | 1989-02-28 | 1990-10-23 | Victor Nelson | Magnetic switch for coaxial transmission lines |
| US5272458A (en) * | 1988-07-28 | 1993-12-21 | H-U Development Corporation | Solenoid actuator |
| CN109727823A (en) * | 2019-01-16 | 2019-05-07 | 三友联众集团股份有限公司 | A kind of motor driving D.C. contactor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206412446U (en) * | 2016-12-21 | 2017-08-15 | 中国航空工业集团公司雷华电子技术研究所 | A kind of relay microwave switch |
| CN108511220A (en) * | 2018-05-23 | 2018-09-07 | 中国电子科技集团公司第四十研究所 | A kind of fail-safe type single-knife dual-close large power coaxial switch |
-
2019
- 2019-07-18 CN CN201910649651.6A patent/CN110277608B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272458A (en) * | 1988-07-28 | 1993-12-21 | H-U Development Corporation | Solenoid actuator |
| US4965542A (en) * | 1989-02-28 | 1990-10-23 | Victor Nelson | Magnetic switch for coaxial transmission lines |
| CN109727823A (en) * | 2019-01-16 | 2019-05-07 | 三友联众集团股份有限公司 | A kind of motor driving D.C. contactor |
Non-Patent Citations (2)
| Title |
|---|
| 一种超宽带单刀双掷同轴开关的设计;张陶陶等;《2017年全国微波毫米波会议论文集（中册） 》;20170508;990-992 * |
| 张陶陶等.一种超宽带单刀双掷同轴开关的设计.《2017年全国微波毫米波会议论文集（中册） 》.2017,990-992. * |
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| CN110277608A (en) | 2019-09-24 |
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Address after: 266000 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Applicant after: CLP kesiyi Technology Co.,Ltd. Address before: 266000 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Applicant before: CHINA ELECTRONICS TECHNOLOGY INSTRUMENTS Co.,Ltd. |
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