Linkage radio frequency coaxial switch assembly with stop limit

Abstract

The utility model discloses a kind of linkage radio frequency coaxial switch subassembly with stop limit, including several radio frequency coaxial switches, motor, tray and printed circuit board, the tray is connected with motor, contact is provided on the printed circuit board, contact top is provided with contact spring, push arm is fixed on the tray and is linked with tray, the radio frequency coaxial switch is set in the below of the tray.The utility model of a kind of linkage radio frequency coaxial switch subassembly with stop feedback, when radio frequency switch is turned on, the on or off state of contact spring and lower contact can be fed back to motor drive circuit so as to stop the continuous rotation of motor after switch completes switching, so that motor can be accurately stopped, reduce the damage of radio frequency switch, delay the service life of radio frequency switch.

Description

Technical Field

[0001] This utility model relates to the field of electronic components technology, specifically to a linkage radio frequency coaxial switch assembly with stop limit. Background Technology

[0002] A radio frequency coaxial switch (relay) is an electrical control device that causes a predetermined step change in the controlled variable in the electrical output circuit when the input quantity changes to a specified value. It establishes an interactive relationship between the control system and the controlled system. Commonly used in automated control circuits, it is essentially an "automatic switch" that uses a small current to control a large current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching.

[0003] While there are many types and quantities of relays available today, radio frequency (RF) switches typically utilize a push rod to actuate a movable conductive plate, which contacts a pair of connector terminals, thus connecting the RF signal path between the two connector terminals. A common design involves a seesaw-shaped soft magnet oscillating under the action of a pair of electromagnets to actuate the push rod.

[0004] However, existing motor-controlled RF switches lack a limit mechanism, which can lead to inaccurate control. During operation, even if the switch is engaged, the motor may continue to operate, potentially damaging the RF switch and affecting its lifespan. Utility Model Content

[0005] The purpose of this invention is to provide a linkage radio frequency coaxial switch assembly with stop feedback, in order to solve the problem in the prior art where the existing motor-controlled radio frequency switch lacks a limit mechanism, which leads to inaccurate control. During operation, even if the switch is already connected, the motor will continue to work, which can easily damage the radio frequency switch and affect its service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a linkage radio frequency coaxial switch assembly with stop limit, comprising a plurality of radio frequency coaxial switches, a motor, a tray and a printed circuit board, wherein the tray is connected to the motor, the printed circuit board is provided with contacts, and contact springs are provided above the contacts, a push arm is fixed on the tray and moves in linkage with the tray, and the radio frequency coaxial switches are located below the tray.

[0007] Preferably, the plurality of radio frequency switches are arranged sequentially below the tray, and the tray is driven by a motor to drive the plurality of radio frequency switches to switch in a coordinated manner.

[0008] Preferably, the tray is connected to the motor via a rotating shaft, and a set of reduction gears is provided on the rotating shaft.

[0009] Preferably, the radio frequency coaxial switch includes a pressure plate, a left push rod assembly, a right push rod assembly, a first coaxial connector, a second coaxial connector, a third coaxial connector, a base, a cover plate, and a cavity. The left push rod assembly and the right push rod assembly are located in the cavity and extend above the cover plate. The upper parts of the first coaxial connector, the second coaxial connector, and the third coaxial connector are located in the cavity.

[0010] Preferably, the radio frequency switch further includes a left push rod assembly and a right push rod assembly. The left push rod assembly and the right push rod assembly each include an upper push rod, a lower push rod reaction spring, an inner conductor sheet, and a flexible limiting band. The reaction spring is disposed at the bottom of the lower push rod, and the flexible limiting band is adhered to the inner conductor sheet. The inner conductor sheet is disposed below the upper push rod and located within the cavity.

[0011] Preferably, the cavity consists of a base and a cover plate, forming a closed space.

[0012] Preferably, the first coaxial connector, the second coaxial connector, and the third coaxial connector each include a conductor core, an insulating layer, and a housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are: a linkage radio frequency coaxial switch assembly with stop feedback:

[0014] The system incorporates a mechanical linkage structure and a stop feedback component. The tray is connected to a gear assembly and a motor via a tray shaft. The motor can rotate clockwise or counterclockwise, and through the gear assembly and shaft, it applies torque to all pressure plates, driving the push rod assembly to perform the linked switching. The stop component includes a push arm, a contact spring, a lower contact, and a printed circuit board. The push arm is fixed to the tray and moves in tandem with it. The contact spring and lower contact are mounted on the circuit board. When the push arm moves and pushes the contact spring downwards, the contact spring makes contact with the lower contact, establishing electrical continuity. When the push arm moves away from the contact spring, the contact spring lifts upwards and disconnects from the lower contact. The on / off state of the contact spring and lower contact is fed back to the motor drive circuit, causing the motor to stop rotating after the switch has completed its switching operation.

[0015] The RF switch of this invention can feed back the on / off state of the contact spring and the lower contact to the motor drive circuit so that the motor stops rotating after the switch is completed, enabling the motor to stop precisely, reducing damage to the RF switch and extending its service life. Attached Figure Description

[0016] Figure 1 is a cross-sectional view of the radio frequency switch of this utility model;

[0017] Figure 2 is a schematic diagram of the motor stop feedback mechanism of this utility model;

[0018] Figure 3 is an appearance drawing of this utility model. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please refer to Figures 1, 2 and 3. This utility model provides a technical solution: as shown in the figures, the utility model disclosed herein consists of multiple single-pole double-throw radio frequency coaxial switches and has a stop limit switch to stop the switch from continuing to operate after the switch has completed the switching.

[0021] Figure 3 shows the front and bottom views of the linked RF coaxial switch assembly. This example of the linked RF coaxial switch assembly consists of 16 (S1, S2, ..., S16) single-pole double-throw (SPDT) RF coaxial switches. Each SPDT switch has three RF coaxial connectors 10, 10a, and 10b at its bottom. The middle RF coaxial connector 10 can be selectively connected to one of the RF coaxial connectors (such as 10a or 10b).

[0022] Figure 1 shows a cross-sectional view of a single switch (S1) according to an embodiment. The coaxial RF switch S1 includes a tray 40 and a pivot 82, a pressure plate 42, push rod assemblies 50a and 50b, a cavity 70, coaxial connector assemblies 10, 10a and 10b, a base 71, and a cover 72. Push rod assemblies 50a and 50b include an upper push rod 51, a lower push rod 54, a reaction spring 52, and an inner conductor sheet 53. A flexible limiting band 59 adheres to the inner conductor sheet 53 and restricts its movement except in the vertical direction. The cavity 70 is an enclosed space formed by the combination of the base 71 and the cover 72. Coaxial connectors 10, 10a and 10b include an inner conductor core 11, an insulator 12, and a metal housing 13.

[0023] Figure 2 shows the internal structure of the switch section, the mechanical linkage structure, and the stop feedback component 90 of this utility model. The tray 41 is connected to the gear assembly 81 and the motor 80 via the tray shaft 82. The motor 80 can rotate clockwise or counterclockwise. The motor 80, through the gear assembly 81 and the shaft 82, applies torque to all the pressure plates 42, pushing the push rod assembly to perform the linkage switching of the switch. The stop component 90 includes a push arm 95, a contact spring 96, a lower contact 97, and a printed circuit board 94. The push arm 95 is fixed to the tray 41 and linked with the tray. The contact spring 96 and the lower contact 97 are mounted on the circuit board 94. When the push arm 95 moves and pushes the contact spring 96 downwards, the contact spring 96 contacts and conducts electricity with the lower contact 97. When the push arm 95 moves away from the contact spring 96, the contact spring 96 lifts upwards and disconnects from the lower contact 97. The on or off state of the contact spring 96 and the lower contact 97 can be fed back to the motor 80 drive circuit so that the motor 80 stops rotating after the switch is completed.

[0024] As shown in the attached diagram, when the motor 80 rotates counterclockwise, driving the tray 41 and pressure plate 42 to rotate counterclockwise accordingly via the gear assembly 81 and the rotating shaft 82, the left end of the pressure plate 42 pushes the push rod assembly 50a downward until the corresponding left inner conductor plate 53 simultaneously connects to coaxial connectors 10 and 10a, making them conductive. Simultaneously, the lower push rod 52 of the right push rod assembly 50b is pushed upward by the reaction spring 52, causing the corresponding right inner conductor plate 53 to disengage from coaxial connectors 10 and 10b, thus disconnecting channel 10-10b. Similarly, a clockwise rotation of the motor 80 will cause the tray 41 and pressure plate 42 to rotate counterclockwise accordingly, connecting all switch RF ports 10 and 10b via the corresponding push rod assemblies, while simultaneously disconnecting 10 and 10a.

[0025] As described above, the stop feedback component 90 generates the on or off state of the contact spring 96 and the lower contact 97 through the linkage of the push arm 95 and the tray 41, and feeds it back to the motor 80 drive circuit to achieve the stop function after the radio frequency switch is switched.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A linkage radio frequency coaxial switch assembly with stop limit, comprising a plurality of radio frequency coaxial switches, a motor (80), a tray (41), and a printed circuit board (94), characterized in that, The tray (41) is connected to the motor (80), the printed circuit board (94) is provided with a contact (97), a contact spring (96) is provided above the contact (97), a push arm (95) is fixed on the tray (41) and moves in conjunction with the tray (41), and the radio frequency coaxial switch is located below the tray (41).

2. The linkage radio frequency coaxial switch assembly with stop limit as described in claim 1, characterized in that, The plurality of radio frequency coaxial switches are arranged in sequence below the tray (41), and the tray is driven by the motor (80) to drive the plurality of radio frequency switches to switch in a coordinated manner.

3. The linkage radio frequency coaxial switch assembly with stop limit as described in claim 1, characterized in that, The tray (41) is connected to the motor (80) via a rotating shaft (82), and a set of reduction gear assembly (81) is provided on the rotating shaft (82).

4. The linkage radio frequency coaxial switch assembly with stop limit as described in claim 1, characterized in that, The radio frequency coaxial switch includes a pressure plate (42), a left push rod assembly (50a), a right push rod assembly (50b), a first coaxial connector (10a), a second coaxial connector (10), a third coaxial connector (10b), a base (71), a cover plate (72), and a cavity (70). The left push rod assembly (50a) and the right push rod assembly (50b) are located in the cavity (70) and extend above the cover plate (72). The upper parts of the first coaxial connector (10a), the second coaxial connector (10), and the third coaxial connector (10b) are located in the cavity (70).

5. The linkage radio frequency coaxial switch assembly with stop limit according to claim 4, characterized in that, The radio frequency coaxial switch further includes a left push rod assembly (50a) and a right push rod assembly (50b). The left push rod assembly (50a) and the right push rod assembly (50b) respectively include an upper push rod (51), a lower push rod (54), a reaction spring (52), an inner conductor sheet (53), and a flexible limiting band (59). The reaction spring (52) is disposed at the bottom of the lower push rod (54), and the flexible limiting band (59) is adhered to the inner conductor sheet (53). The inner conductor sheet (53) is disposed below the upper push rod (51) and located in the cavity (70).

6. The linkage radio frequency coaxial switch assembly with stop limit according to claim 4, characterized in that, The cavity (70) is composed of a base (71) and a cover plate (72) and forms a closed space.

7. The linkage radio frequency coaxial switch assembly with stop limit according to claim 4, characterized in that... The first coaxial connector (10a), the second coaxial connector (10) and the third coaxial connector (10b) each include a conductor core (11), an insulating layer (12) and a shell (13).

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