CN201278333Y - Single-pole double-throw coaxial relay - Google Patents
Single-pole double-throw coaxial relay Download PDFInfo
- Publication number
- CN201278333Y CN201278333Y CNU200820221779XU CN200820221779U CN201278333Y CN 201278333 Y CN201278333 Y CN 201278333Y CN U200820221779X U CNU200820221779X U CN U200820221779XU CN 200820221779 U CN200820221779 U CN 200820221779U CN 201278333 Y CN201278333 Y CN 201278333Y
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- fixed
- armature
- contact
- cover plate
- spring
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Abstract
The utility model relates to a single-blade double-throw coaxial relay. An electromagnetic system (1) is fixed on a contact system (3) through upright posts (4). An armature iron part (2) is arranged on a cover plate (5) of the contact system (3), and is positioned below the electromagnetic system (1). A closed hood (6) is fixed above the contact system (3); and the electromagnetic system (1), the armature iron part (2) and the cover plate (5) are all positioned in the closed hood (6). The utility model drives the armature iron part arranged on the cover plate of the contact system to rotate through the action of the electromagnetic system and to push the pushing rod of the contact system. A movable contact spring freely moves to complete contact conversion along the depth direction of a cavity through the action of the pushing rod and a resetting spring. The utility model can work from direct current to micro-wave frequency band, has lower insertion loss and larger transmission capability of radio frequency power, and is suitable for occasions with high band width, low loss and large power.
Description
Technical field
The utility model relates to a kind of single-pole double throw coaxial relay.
Background technology
Existing radio-frequency electromagnetic relay contact system generally adopts electromagnetic system to drive movable contact spring deforming position in-migration and realizes the contact conversion, because flexural deformation in the movable contact spring course of action, cause the contact system voltage standing wave ratio to increase, be difficult to realize the high-isolation between break contact.In addition, its coil control terminal and contact exit all are distributed on the base, can not satisfy the requirement that the low-and high-frequency terminal is isolated.
Summary of the invention
The technical problem that the utility model solves: design a kind of single-pole double throw coaxial relay, its electromagnetic system adopts two coil configuration, in the middle of two coils the balanced rotary electromagnetic system that permanent-magnet steel forms two lateral coil symmetries is housed, is fixed on the contact system by column; The electromagnetic field and the magnet steel magnetic field armature of acting in conjunction drive installation on the contact system cover plate that produce by coil stimulating partly rotate, and armature promotes the push rod of contact system by actuating spring; The fixed contact of contact system and movable contact spring are enclosed in and present the band line structure in the cavity, and movable contact spring moves freely in the effect lower edge of push rod and return spring cavity depth direction and finishes the contact conversion.
Technical solution one of the present utility model: a kind of single-pole double throw coaxial relay, comprise electromagnetic system (1), armature part (2) and contact system (3), it is characterized in that: electromagnetic system (1) is fixed on the contact system (3) by column (4), armature part (2) is arranged on the cover plate (5) of contact system (3), be positioned at the below of electromagnetic system (1), seal bootr (6) is fixed on the top of contact system (3), and electromagnetic system (1), armature part (2) and cover plate (5) all are positioned at seal bootr (6).
Described electromagnetic system (1) by about unshakable in one's determination (7,8), coil (9,10), magnetic conductor (11), support (12) and magnet steel (13) constitute; About coil (9,10) is installed in respectively on unshakable in one's determination (7,8), about the upper end of (7,8) unshakable in one's determination be fixed on the magnetic conductor (11), the lower end is fixed on the support (12); Magnet steel (13) is positioned between the coil (9,10), and the upper end is fixed on the magnetic conductor (11), and the lower end is fixed on the support (12); And support (12) is clamped in the both sides of magnet steel (13), and its upper end is fixed on the magnetic conductor (11); Magnetic conductor (11) is fixed on the cover plate (5) of contact system (3) by four root posts (4).The top of coil (9,10) and top or terminal and terminally be connected and draw centre tap, formation magnetic freeze mode electromagnetic system is drawn at two ends respectively in addition.
Described armature part (2) is made up of V-arrangement armature (15), armature bracket (16) and actuating spring (17), armature bracket (16) is fixed on the cover plate (5) of contact system (3), V-arrangement armature (15) is hinged on the armature bracket (16), and actuating spring (17) is fixed on the below of V-arrangement armature (15).
Described contact system (3) is made of cover plate (5), cavity (18), coaxial connector (19), fixed contact assembly (20), spacer pin (21), push rod (22), spring (23) and movable contact spring (24); Coaxial connector (19) is inserted into the below of cavity (18) and makes its inner core be positioned at cavity (18), fixed contact assembly (20) is fixed on the inner of coaxial connector (19) inner core, the upper end of push rod (22) is positioned at the below of actuating spring (17), the lower end is inserted in the location hole (25) on the cover plate (5), the lower end that movable contact spring (24) is fixed on push rod (22) is positioned at the top of fixed contact assembly (20), the upper end of push rod (22) is installed with spring (23), and the lower end of spring (23) is positioned on the step on location hole (25) top, spacer pin (21) is fixed on the lower surface of cover plate (5), and movable contact spring (24) is positioned between two spacer pins (21).
The below of described cavity (18) is fitted with three coaxial connectors (19), three fixed contact assemblies (20) are in the same plane, be shaped on two location holes (25) on the cover plate (5), and location hole (25) is positioned between the coaxial connector (19), the upper end of two push rods (22) lays respectively at the below at actuating spring (17) two ends, the lower end is inserted into respectively in two location holes (25), and the lower end that two movable contact springs (24) are separately fixed at push rod (22) all is positioned at the top of fixed contact assembly (20).
Technical solution two of the present utility model: basic structure is identical with technical solution one, and difference is drawn no centre tap after being to hold the whole story of the coil (9,10) of electromagnetic system (1) reverse parallel connection or series connection, constitutes the electromagnetic type electromagnetic system; Between V-arrangement armature (15) and the cover plate (5) armature back-moving spring (14) is installed.
Advantage that the utility model compared with prior art has and effect:
1, the fixed contact of the utility model contact system and movable contact spring are enclosed in and present the band line structure in the cavity, not only have high bandwidth and good radio-frequency performance and coaxial system advantage easy to use, and the low-and high-frequency circuit isolates fully, eliminated the high-power RF signal and has been coupled to hidden danger in the control circuit.
2, the utility model armature partly is installed on the contact system, can guarantee to have higher quality of fit between armature part and contact system.
3, the utility model electromagnetic system is installed on the contact system by four root posts, but the simplifying relay structure is easy to guarantee to adjust assembly precision, and the exit that can be the cover part provides the space.
4, the utility model electromagnetic system is connected iron core by support with magnet steel, has effectively improved the structural strength of electromagnetic system.
5, the utility model contact transfer process movable contact spring displacement but indeformable, so its contact system voltage standing wave(VSW) is smaller, has realized the high-isolation between break contact.
Description of drawings
Fig. 1 is an outline drawing of the present utility model,
Fig. 2 is a structural representation of the present utility model,
Fig. 3 is the structural representation of the utility model electromagnetic system,
Fig. 4 is the structure cutaway view of the utility model armature part and contact system.
Embodiment:
1,2,3,4 first kind of embodiment of the present utility model described in conjunction with the accompanying drawings---single-pole double throw magnetic freeze mode coaxial relay.
A kind of single-pole double throw coaxial relay, comprise electromagnetic system (1), armature part (2) and contact system (3), electromagnetic system (1) is fixed on the contact system (3) by column (4), armature part (2) is arranged on the cover plate (5) of contact system (3), be positioned at the below of electromagnetic system (1), seal bootr (6) is fixed on the top of contact system (3), and electromagnetic system (1), armature part (2) and cover plate (5) all are positioned at seal bootr (6).
Electromagnetic system (1) by about unshakable in one's determination (7,8), coil (9,10), magnetic conductor (11), support (12) and magnet steel (13) constitute; About coil (9,10) is installed in respectively on unshakable in one's determination (7,8), about the upper end of (7,8) unshakable in one's determination be fixed on the magnetic conductor (11), the lower end is fixed on the support (12); Magnet steel (13) is positioned between the coil (9,10), and the upper end is fixed on the magnetic conductor (11), and the lower end is fixed on the support (12); And support (12) is clamped in the both sides of magnet steel (13), and its upper end is fixed on the magnetic conductor (11); Magnetic conductor (11) is fixed on the cover plate (5) of contact system (3) by four root posts (4).Centre tap is drawn with terminal the connection in the top of coil (9,10), and draw respectively at two ends in addition, constitutes magnetic freeze mode electromagnetic system.
Armature part (2) is made up of V-arrangement armature (15), armature bracket (16) and actuating spring (17), armature bracket (16) is fixed on the cover plate (5) of contact system (3), V-arrangement armature (15) is hinged on the armature bracket (16), and actuating spring (17) is fixed on the below of V-arrangement armature (15).
Contact system (3) is made of cover plate (5), cavity (18), coaxial connector (19), fixed contact assembly (20), spacer pin (21), push rod (22), spring (23) and movable contact spring (24); Three coaxial connectors (19) are inserted into the below of cavity (18) and make its inner core be positioned at cavity (18), and fixed contact assembly (20) is fixed on the inner of coaxial connector (19) inner core, and three fixed contact assemblies (20) are in the same plane; Be shaped on two location holes (25) on the cover plate (5), and location hole (25) is positioned between the coaxial connector (19), the upper end of two push rods (22) lays respectively at the below at actuating spring (17) two ends, the lower end is inserted into respectively in two location holes (25), and the lower end that two movable contact springs (24) are separately fixed at push rod (22) all is positioned at the top of fixed contact assembly (20); The upper end of push rod (22) is installed with spring (23), and the lower end of spring (23) is positioned on the step on location hole (25) top, and spacer pin (21) is fixed on the lower surface of cover plate (5), and movable contact spring (24) is positioned between two spacer pins (21).
The end face of seal bootr (6) is welded with hollow glass insulator (26), and the exit of coil (9,10) is drawn by the binding post that is welded on the hollow glass insulator (26).The cover plate (5) of seal bootr (6) inwall and contact system (3) chamfering all around forms the sealing of weld seam realization relay.
Operation principle: when right coil (10) applies excitation, electromagnetic field and magnet steel magnetic field superposition that coil (10) produces, producing active force in V-arrangement armature (15) right-hand member top makes V-arrangement armature (15) rotate counterclockwise around axle, driving actuating spring (17) rotates counterclockwise, the left end of actuating spring (17) presses down the push rod (22) of contact system (3) left part, driving movable contact spring (24) by push rod (22) moves downward with the fixed contact assembly (20) at left side fixed contact assembly (20) and middle part and contacts Jiang Zuolu and the connection of middle road.Another group movable contact spring (24) of right part is under the counter-force effect of return spring (23), push rod (22) drive movable contact spring (24) by correspondence moves upward, movable contact spring (24) is separated with the fixed contact assembly (20) at right side fixed contact assembly (20) and middle part, right wing and middle road are disconnected.In like manner, when left coil (9) applied excitation, right wing and middle road were connected, and Zuo Lu and middle road disconnect.
Fixed contact assembly (20) and movable contact spring (24) are positioned at the band line structure that microwave cavity (18) is radio-frequency transmission line, therefore its contact can be operated in direct current to the very high band limits of microwave frequency band, is highly suitable under broadband, low-loss and the high-power condition and uses.
Second kind of embodiment of the present utility model---single-pole double throw electromagnetic type coaxial relay.
Basic structure is identical with first kind of embodiment, and difference is do not have magnet steel (13) between the coil (9,10) of electromagnetic system (1), and draws after holding reverse parallel connection or series connection the whole story of coil (9,10), constitutes the electromagnetic type electromagnetic system; Between V-arrangement armature (15) right-hand member and the cover plate (5) armature back-moving spring (14) is installed.
Operation principle: when coil (9, when 10) switching on, coil (9,10) electromagnetic field of Chan Shenging makes V-arrangement armature (15) clockwise rotate around axle at V-arrangement armature (15) left end top generation active force, driving actuating spring (17) clockwise rotates, the right-hand member of actuating spring (17) presses down the push rod (22) of contact system (3) right part, is moved downward with the fixed contact assembly (20) at right side fixed contact assembly (20) and middle part by push rod (22) drive movable contact spring (24) to contact, and right wing and middle road are connected.Another group movable contact spring (24) of left part is under the counter-force effect of return spring (23), push rod (22) drive movable contact spring (24) by correspondence moves upward, movable contact spring (24) is separated with the fixed contact assembly (20) at left side fixed contact assembly (20) and middle part, and Jiang Zuolu and middle road disconnect.When coil (9,10) cut off the power supply, armature back-moving spring (14) promoted V-arrangement armature (15) and rotates counterclockwise around axle, and right wing and middle road disconnect, and Zuo Lu and middle road are connected.
Claims (7)
1, a kind of single-pole double throw coaxial relay, comprise electromagnetic system (1), armature part (2) and contact system (3), it is characterized in that: electromagnetic system (1) is fixed on the contact system (3) by column (4), armature part (2) is arranged on the cover plate (5) of contact system (3), be positioned at the below of electromagnetic system (1), seal bootr (6) is fixed on the top of contact system (3), and electromagnetic system (1), armature part (2) and cover plate (5) all are positioned at seal bootr (6).
2, single-pole double throw coaxial relay according to claim 1 is characterized in that: described electromagnetic system (1) by about unshakable in one's determination (7,8), coil (9,10), magnetic conductor (11), support (12) and magnet steel (13) constitute; About coil (9,10) is wrapped in respectively on unshakable in one's determination (7,8), about the upper end of (7,8) unshakable in one's determination be fixed on the magnetic conductor (11), the lower end is fixed on the support (12); Magnet steel (13) is positioned between the coil (9,10), and the upper end is fixed on the magnetic conductor (11), and the lower end is fixed on the support (12); And support (12) is clamped in the both sides of magnet steel (13), and its upper end is fixed on the magnetic conductor (11); Magnetic conductor (11) is fixed on the cover plate (5) of contact system (3) by four root posts (4); The top of coil (9,10) and top or terminally be connected with end and draw common port, draw respectively at two ends in addition.
3, single-pole double throw coaxial relay according to claim 1 is characterized in that: described electromagnetic system (1) by about unshakable in one's determination (7,8), coil (9,10), magnetic conductor (11) and support (12) constitute; About coil (9,10) is wrapped in respectively on unshakable in one's determination (7,8), about the upper end of (7,8) unshakable in one's determination be fixed on the magnetic conductor (11), the lower end is fixed on the support (12), support (12) upper end is fixed on the magnetic conductor (11); Magnetic conductor (11) is fixed on the cover plate (5) of contact system (3) by four root posts (4); Hold reverse parallel connection or series connection the whole story of coil (9,10).
4, single-pole double throw coaxial relay according to claim 2, it is characterized in that: described armature part (2) is made up of V-arrangement armature (15), armature bracket (16) and actuating spring (17), armature bracket (16) is fixed on the cover plate (5) of contact system (3), V-arrangement armature (15) is hinged on the armature bracket (16), and actuating spring (17) is fixed on the below of V-arrangement armature (15).
5, single-pole double throw coaxial relay according to claim 3, it is characterized in that: described armature part (2) is made up of V-arrangement armature (15), armature bracket (16) and actuating spring (17), armature bracket (16) is fixed on the cover plate (5) of contact system (3), V-arrangement armature (15) is hinged on the armature bracket (16), and actuating spring (17) is fixed on the below of V-arrangement armature (15); Between V-arrangement armature (15) and the cover plate (5) armature back-moving spring (14) is installed.
6, according to claim 4 or 5 described single-pole double throw coaxial relays, it is characterized in that: described contact system (3) is made of cover plate (5), cavity (18), coaxial connector (19), fixed contact assembly (20), spacer pin (21), push rod (22), spring (23) and movable contact spring (24); Coaxial connector (19) is inserted into the below of cavity (18) and makes its inner wire be positioned at cavity (18), fixed contact assembly (20) is fixed on the inner of coaxial connector (19) inner core, the upper end of push rod (22) is positioned at the below of actuating spring (17), the lower end is inserted in the location hole (25) on the cover plate (5), the lower end that movable contact spring (24) is fixed on push rod (22) is positioned at the top of fixed contact assembly (20), the upper end of push rod (22) is installed with spring (23), and the lower end of spring (23) is positioned on the step on location hole (25) top, spacer pin (21) is fixed on the lower surface of cover plate (5), and movable contact spring (24) is positioned between two spacer pins (21).
7, single-pole double throw coaxial relay according to claim 6, it is characterized in that: the below of described cavity (18) is fitted with three coaxial connectors (19), three fixed contact assemblies (20) are in the same plane, be shaped on two location holes (25) on the cover plate (5), and location hole (25) is positioned between the coaxial connector (19), the upper end of two push rods (22) lays respectively at the below at actuating spring (17) two ends, the lower end is inserted into respectively in two location holes (25), and the lower end that two movable contact springs (24) are separately fixed at push rod (22) all is positioned at the top of fixed contact assembly (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820221779XU CN201278333Y (en) | 2008-10-09 | 2008-10-09 | Single-pole double-throw coaxial relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820221779XU CN201278333Y (en) | 2008-10-09 | 2008-10-09 | Single-pole double-throw coaxial relay |
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| Publication Number | Publication Date |
|---|---|
| CN201278333Y true CN201278333Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820221779XU Expired - Fee Related CN201278333Y (en) | 2008-10-09 | 2008-10-09 | Single-pole double-throw coaxial relay |
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| CN (1) | CN201278333Y (en) |
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| CN104867728A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Remote electric operating mechanism for intelligent power switch |
| CN104867754A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent remote control dual-power power switch |
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| CN104867743A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent remote electric control power switch |
| CN104867760A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Remote operation mechanism of intelligent power switch for switch cabinet |
| CN104867758A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent remote operation mechanism for intelligent power switch |
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| CN104867726A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent control switch used for power distribution cabinet |
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| CN104867708A (en) * | 2015-04-27 | 2015-08-26 | 苏州鱼得水电气科技有限公司 | Manual/electrical operating mechanism for dual-power distribution switch of switch cabinet |
| CN104867735A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent dual-power automatic switching power switch |
| CN104867768A (en) * | 2015-04-27 | 2015-08-26 | 苏州鱼得水电气科技有限公司 | Dual-power power switch for switch cabinet |
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| CN104867706A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Dual-power intelligent control switch used for power distribution cabinet |
| CN104867733A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Remote operation mechanism of intelligent power switch for switch cabinet |
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| CN104867753A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent remote operation mechanism for power switch |
| CN104867755A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent power switch |
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| CN104867729A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent power switch |
| CN104867745A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent dual-power automatic switching power switch |
| CN104867744A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent automatic switching power switch |
| CN104867730A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Intelligent remote electric control dual-power power switch |
| CN104867736A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Remote intelligent dual-power switch used for switch cabinet |
| CN106206171A (en) * | 2016-08-31 | 2016-12-07 | 陕西群力电工有限责任公司 | A kind of radio-frequency relay realizing dynamic circuit connector function |
| CN106252123A (en) * | 2015-04-27 | 2016-12-21 | 苏州贝腾特电子科技有限公司 | A kind of hand-movement and motor-driven integrative remote control switch in power distribution cabinet |
| CN106298336A (en) * | 2015-04-27 | 2017-01-04 | 苏州贝腾特电子科技有限公司 | A kind of intelligence automatic switchover power switch |
| CN106328445A (en) * | 2016-10-18 | 2017-01-11 | 陕西群力电工有限责任公司 | Double-pole double-throw radio-frequency relay with auxiliary contacts |
| CN106548905A (en) * | 2017-01-12 | 2017-03-29 | 深圳市西科技术有限公司 | A kind of radio-frequency relay electromagnetic driving system |
| CN106960744A (en) * | 2015-04-27 | 2017-07-18 | 赵牧青 | For the power switch in power distribution cabinet |
| 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 |
| CN110581043A (en) * | 2019-09-06 | 2019-12-17 | 陕西群力电工有限责任公司 | Sealed strip output radio frequency relay |
-
2008
- 2008-10-09 CN CNU200820221779XU patent/CN201278333Y/en not_active Expired - Fee Related
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| CN103268841A (en) * | 2013-06-05 | 2013-08-28 | 厦门普利得汽车电子有限公司 | Electromagnetic relay with double coils |
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| CN104867728A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Remote electric operating mechanism for intelligent power switch |
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| CN104851716A (en) * | 2015-04-27 | 2015-08-19 | 苏州贝腾特电子科技有限公司 | Intelligent power switch for switch cabinet |
| CN104851657A (en) * | 2015-04-27 | 2015-08-19 | 苏州贝腾特电子科技有限公司 | Dual-power switch for power distribution cabinet |
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| CN104851694A (en) * | 2015-04-27 | 2015-08-19 | 苏州贝腾特电子科技有限公司 | Intelligent remote and electric control dual-power switch of electric power |
| CN104851625A (en) * | 2015-04-27 | 2015-08-19 | 苏州君丰辰电子科技有限公司 | Dual-power changeover switch |
| CN104867715A (en) * | 2015-04-27 | 2015-08-26 | 苏州鱼得水电气科技有限公司 | Power distribution switch for high/low-voltage switch cabinet |
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| CN104867707A (en) * | 2015-04-27 | 2015-08-26 | 苏州鱼得水电气科技有限公司 | Dual-power power switch for power distribution cabinet |
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| CN104867764A (en) * | 2015-04-27 | 2015-08-26 | 苏州贝腾特电子科技有限公司 | Remote electric operating mechanism for power switch of power distribution cabinet |
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| CN106252123A (en) * | 2015-04-27 | 2016-12-21 | 苏州贝腾特电子科技有限公司 | A kind of hand-movement and motor-driven integrative remote control switch in power distribution cabinet |
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| CN107154315A (en) * | 2015-04-27 | 2017-09-12 | 赵牧青 | A kind of power switch with electromagnetic drive mechanism being used in power distribution cabinet |
| CN106206171A (en) * | 2016-08-31 | 2016-12-07 | 陕西群力电工有限责任公司 | A kind of radio-frequency relay realizing dynamic circuit connector function |
| CN106206171B (en) * | 2016-08-31 | 2023-10-03 | 陕西群力电工有限责任公司 | Radio frequency relay for realizing dynamic function |
| CN106328445A (en) * | 2016-10-18 | 2017-01-11 | 陕西群力电工有限责任公司 | Double-pole double-throw radio-frequency relay with auxiliary contacts |
| CN106328445B (en) * | 2016-10-18 | 2019-01-18 | 陕西群力电工有限责任公司 | A kind of double-pole double throw radio-frequency relay with auxiliary contact |
| CN106548905A (en) * | 2017-01-12 | 2017-03-29 | 深圳市西科技术有限公司 | A kind of radio-frequency relay electromagnetic driving system |
| 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 |
| CN110581043A (en) * | 2019-09-06 | 2019-12-17 | 陕西群力电工有限责任公司 | Sealed strip output radio frequency relay |
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