Driving device for controlling on-off of microwave switch channel and microwave switch

Abstract

The utility model relates to the technical field of microwave switch channel control, and discloses a driving device for controlling the on-off of a microwave switch channel and a microwave switch, the driving device comprises a push rod seat, the push rod seat is provided with two vertical guide rods, and the bottom ends of the two vertical guide rods are connected with a radio frequency reed; a mounting column is arranged on the push rod seat; the bottom end of the mounting column is connected with a spring; during use, when the radio frequency reed is in contact with the radio frequency connector, the pressure of the contact is determined by the deformation quantity of the radio frequency reed, and the deformation quantity of the radio frequency reed is determined by the movement distance of the push rod seat and the length of the vertical guide rod, so that the pressure applied to the radio frequency reed by the driving device can be accurately controlled; in addition, when the spring is no longer subjected to external force, the radio frequency reed can be separated from the connector through the elastic force of the spring, so that the radio frequency reed can be automatically reset; and finally, the two ends of the radio frequency reed do not make contact with the object, abrasion can be avoided, the vertical rod is arranged in the middle, disturbance to electromagnetic field energy distribution around the radio frequency reed is minimum, and signal reflection is small.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave switch channel control, in particular to a driving device for controlling the on-off of a microwave switch channel and a microwave switch. Background Art

[0002] A mechanical coaxial microwave switch is a channel selection device for radio frequency signals. It is equipped with multiple signal transmission cavities. Radio frequency connectors are provided at both ends of each signal transmission cavity. The corresponding signal transmission cavity is selected for radio frequency signal transmission by controlling the up and down movement of the radio frequency reed.

[0003] In existing drive devices, the RF reed is connected to a cylindrical push rod, which is controlled by the up and down movement of the push rod to drive the RF reed up and down. In actual use, the cylindrical push rod is prone to rotation during the up and down reciprocating motion, and the rotation of the push rod will affect the connection between the RF reed and the RF connector. For this reason, a support column is usually set near the RF connector at both ends of a signal transmission cavity to limit the RF reed. However, the introduction of the support column will have the following disadvantages:

[0004] 1. Because the edge of the support column and the RF reed are in contact, there is reciprocating friction between the RF reed and the support column, which will produce excess material and affect the service life;

[0005] Second: The signal energy is usually concentrated at the edge of the RF reed. The presence of the pillar will affect the energy distribution and cause signal reflection, which is not conducive to the realization of the voltage standing wave ratio index of the microwave switch;

[0006] 3. When transmitting high-power signals, air breakdown is easily formed between the support column and the RF reed, which reduces the ability of the microwave switch to transmit high-power signals;

[0007] 4. The push rod has no infinite position function, and the contact pressure depends entirely on the external force provided by the relay. In order to achieve precise control of the contact pressure, the switching force of the relay needs to be precisely controlled, which increases the difficulty of producing microwave switches. Utility Model Content

[0008] In view of the shortcomings of the background technology, the present invention provides a driving device and a microwave switch for controlling the on and off of a microwave switch channel. The technical problem to be solved is that in the existing driving device of the microwave switch, the radio frequency reed is limited by a column, which affects the service life and performance of the microwave switch and is difficult to control.

[0009] To solve the above technical problems, in a first aspect, the present invention provides the following technical solutions: a driving device for controlling the on / off of a microwave switch channel, comprising a push rod seat, wherein the push rod seat is provided with two vertical guide rods, and the bottom surfaces of the two vertical guide rods are connected to the middle part of the radio frequency spring;

[0010] The push rod seat is also provided with a mounting column, the bottom end of the mounting column is connected to one end of the spring, and the other end of the spring is located above the radio frequency reed.

[0011] In a certain embodiment of the first aspect, the two vertical guide rods are located on both sides of the push rod seat, and the mounting column is between the two vertical guide rods.

[0012] In a certain embodiment of the first aspect, the mounting post passes through the push rod seat in a vertical direction.

[0013] In a certain embodiment of the first aspect, a groove is formed on the bottom surface of the push rod seat between the two vertical guide rods, and the spring is located in the groove.

[0014] In a certain embodiment of the first aspect, a mounting hole is opened upward on the bottom surface of each vertical guide rod, and a connecting piece is provided in each mounting hole. The connecting piece passes through the RF reed to fix the RF reed on the vertical guide rod.

[0015] In a second aspect, the present invention further provides a microwave switch, comprising a body, wherein a signal transmission cavity is defined within the body, and three mounting cavities communicating with the signal transmission cavity are defined upwardly on the bottom surface of the body, wherein the three mounting cavities are respectively provided corresponding to the two ends and the middle position of the signal transmission cavity, and a radio frequency connector is respectively installed in each mounting cavity;

[0016] Two of the above-mentioned driving devices are installed on the top surface of the body. The radio frequency reeds of the two driving devices are both located in the signal transmission cavity, and each radio frequency reed is used to control the on and off of two adjacent radio frequency connectors;

[0017] The top surface of the body is provided with a countersunk hole inwardly at a position corresponding to each spring, and the other end of the spring is located in the countersunk hole.

[0018] In a certain embodiment of the second aspect, the signal transmission cavity is linear, and three radio frequency connectors divide the signal transmission cavity into two signal transmission channels.

[0019] In a certain embodiment of the second aspect, the main body includes a base and an end cover, the end cover is fixed on the top surface of the base, the countersunk hole is opened on the top surface of the end cover, and the vertical guide rod passes through the end cover.

[0020] In certain embodiments of the second aspect, the end cover is fixed to the top surface of the base by bolts.

[0021] In a certain embodiment of the second aspect, the left end, the right end, the front end and the rear end of the end cover are all fixed to the top surface of the base by the bolts.

[0022] Compared with the prior art, the present invention has the following beneficial effects: in actual use, when the radio frequency reed of the present invention is connected to the radio frequency connector, the pressure of the contact point is determined by the deformation of the radio frequency reed, and the deformation of the radio frequency reed is determined by the movement distance of the push rod seat, and the movement distance of the push rod seat is determined by the length of the vertical guide rod. Therefore, the pressure applied by the driving device to the radio frequency reed can be accurately controlled, which can improve the production efficiency of the product;

[0023] In addition, when the spring is no longer subjected to external force, the elastic force of the spring can separate the RF reed from the RF connector, causing the RF reed to automatically reset.

[0024] Finally, since the two ends of the RF reed do not come into contact with objects, wear can be avoided and the service life of the device can be increased. Moreover, the vertical rod is set in the middle, which minimizes the disturbance to the electromagnetic field energy distribution around the RF reed, causing less signal reflection, and at the same time improves the device's ability to resist air breakdown. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of the driving device in the embodiment;

[0026] Figure 2 Schematic diagram of the structure of the microwave switch in the embodiment;

[0027] Figure 3 for Figure 2 Internal cross-section of . DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0029] Example 1

[0030] like Figure 1 As shown, a driving device for controlling the on / off of a microwave switch channel includes a push rod seat 1, on which two vertical guide rods 2 are provided, and the bottom ends of the two vertical guide rods 2 are connected to a radio frequency spring 3;

[0031] The push rod seat 1 is also provided with a mounting column 5, referring to Figure 3 The bottom end of the mounting column 5 is connected to one end of the spring 6 , and the other end of the spring 6 is located above the RF reed 3 .

[0032] Specifically, in this embodiment, Figure 1 As shown, the two vertical guide rods 2 are located on both sides of the push rod seat 1, and the mounting column 5 is between the two vertical guide rods 2. Moreover, the mounting column 5 passes through the push rod seat 1 along the vertical direction.

[0033] In addition, in this embodiment, Figure 1 As shown, a groove 7 is formed on the bottom surface of the push rod seat 1 between the two vertical guide rods 2, and the spring 6 is located in the groove 7.

[0034] like Figure 3 As shown, in this embodiment, a mounting hole is opened upward on the bottom surface of each vertical guide rod 2, and a connecting member 4 is provided in each mounting hole. The connecting member 4 passes through the RF reed 3 to fix the RF reed 3 on the vertical guide rod 2.

[0035] In actual use, when the external telescopic power device drives the push rod seat 1 to move downward, the spring 6 will be compressed. Therefore, the pressure applied by the RF reed 3 to the RF connector 13 depends on the deformation of the RF reed 3, and the deformation of the RF reed 3 is determined by the movement distance of the push rod seat 1, and the movement distance of the push rod seat 1 is determined by the length of the vertical guide rod 2. Therefore, the pressure applied by the driving device to the RF reed 3 can be accurately controlled, which can improve the production efficiency of the product and is controllable. In addition, since there is no need to set a support column, it will not affect the performance of the device.

[0036] Example 2

[0037] like Figure 2 and 3 As shown, this embodiment further provides a microwave switch, including a body, a signal transmission cavity 12 is defined in the body, and three mounting cavities communicating with the signal transmission cavity are defined upward on the bottom surface of the body. The three mounting cavities are respectively provided corresponding to the two ends and the middle position of the signal transmission cavity 12, and a radio frequency connector 13 is respectively installed in each mounting cavity.

[0038] It should be noted that although Figure 2 and Figure 3 The mounting cavity is not marked, but the position of the mounting cavity can be known based on the position of the three RF connectors 13;

[0039] Two driving devices of the first embodiment are installed on the top surface of the body. The RF reeds 3 of the two driving devices are both located in the signal transmission cavity 12. Each RF reed 3 is used to control the on and off of two adjacent RF connectors 13.

[0040] A countersunk hole 15 is formed inwardly on the top surface of the body 1 at a position corresponding to each spring 6 , and the other end of the spring 6 is located in the countersunk hole 15 .

[0041] Specifically, in this embodiment, the signal transmission cavity 12 is linear, three RF connectors 13 divide the signal transmission cavity into two signal transmission channels, and one RF reed 3 is used to control the on / off of one signal transmission channel.

[0042] Specifically, in this embodiment, the body includes a base 11 and an end cover 10 . The end cover 10 is fixed on the top surface of the base 11 . The countersunk hole 15 is opened on the top surface of the end cover 10 , and the vertical guide rod 2 passes through the end cover 10 .

[0043] The microwave switch in this embodiment performs the following process to select the RF signal channel:

[0044] When no external force is applied to the push rod seat 1, the spring 6 applies elastic force to the push rod seat 1, so that the RF reed 3 fits with the inner surface of the end cover 10. In actual use, this design can automatically make the RF reed 3 rise after the external force applied to the push rod seat 1 is removed, thereby simplifying the structure. In actual manufacturing, only one coil assembly is needed to complete the upper and lower position switching of the RF reed 3, effectively reducing the assembly difficulty and volume of the RF switch.

[0045] When an external force is applied to the push rod seat 1, the external force overcomes the reaction force of the spring 6, pushing the push rod seat 1 and the RF reed 3 downward, ultimately achieving contact between the RF reed 3 and the RF connector 13, and placing the corresponding channel in a conductive state. When the RF reed 3 and the RF connector 13 come into contact, the pressure at the contact point is determined by the deformation of the RF reed 3, which in turn is determined by the movement distance of the push rod seat 1, which in turn is determined by the length of the vertical guide rod 2. Therefore, the driving device on the microwave switch in this embodiment allows the pressure applied to the RF reed 3 to be accurately controlled during use, thereby improving product production efficiency.

[0046] In addition, when the spring 6 is no longer subjected to external force, the elastic force of the spring 6 can separate the RF reed 3 and the RF connector 31, so that the RF reed 3 is automatically reset;

[0047] Finally, since the two ends of the RF reed 3 do not come into contact with objects, wear can be avoided and the service life of the device can be improved. Moreover, the vertical guide rod 2 is arranged in the middle of the RF reed 3, which minimizes the disturbance of the electromagnetic field energy distribution around the RF reed 3, causes little signal reflection, and at the same time improves the device's ability to prevent air breakdown.

[0048] In this embodiment, the end cover 10 is fixed to the top surface of the base 11 by bolts. Figure 3 In the embodiment, screw holes 13 are provided on the end cover 10 and the base 11 , and bolts are installed in the screw holes 13 to connect the end cover 10 and the base 11 .

[0049] More specifically, in this embodiment, the left end, the right end, the front end, and the rear end of the end cover 10 are all fixed to the top surface of the base 11 by bolts.

[0050] The above description is based on the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the content of the specification. Its technical scope must be determined according to the scope of the claims.

Claims

1. A driving device for controlling the on / off of a microwave switch channel, characterized in that: It comprises a push rod seat (1), wherein two vertical guide rods (2) are provided on the push rod seat (1), and the bottom ends of the two vertical guide rods (2) are connected to the middle part of the radio frequency reed (3); The push rod seat (1) is further provided with a mounting column (5), the bottom end of the mounting column (5) is connected to one end of a spring (6), and the other end of the spring (6) is located above the radio frequency reed (3).

2. A driving device for controlling the on / off of a microwave switch channel according to claim 1, characterized in that: The two vertical guide rods (2) are located on both sides of the push rod seat (1), and the mounting column (5) is between the two vertical guide rods (2).

3. A driving device for controlling the on / off of a microwave switch channel according to claim 2, characterized in that: The mounting column (5) passes through the push rod seat (1) in a vertical direction.

4. A driving device for controlling the on / off of a microwave switch channel according to claim 3, characterized in that: The bottom surface of the push rod seat (1) is provided with a groove (7) between the two vertical guide rods (2), and the spring (6) is located in the groove (7).

5. A driving device for controlling the on / off of a microwave switch channel according to any one of claims 1 to 4, characterized in that: A mounting hole is provided on the bottom surface of each vertical guide rod (2), and a connecting piece (4) is provided in each mounting hole. The connecting piece (4) passes through the radio frequency spring (3) to fix the radio frequency spring (3) on the vertical guide rod (2).

6. A microwave switch, characterized in that: The device comprises a body, wherein a signal transmission cavity (12) is provided in the body, and three mounting cavities communicating with the signal transmission cavity are provided upward on the bottom surface of the body, wherein the three mounting cavities are respectively arranged corresponding to the two ends and the middle position of the signal transmission cavity (12), and a radio frequency connector (13) is respectively installed in each mounting cavity; Two driving devices according to any one of claims 1 to 5 are installed on the top surface of the body, and the radio frequency reeds (3) of the two driving devices are both located in the signal transmission cavity (12), and each radio frequency reed (3) is used to control the on and off of two adjacent radio frequency connectors (13); A countersunk hole (15) is provided inwardly on the top surface of the body at a position corresponding to each spring (6), and the other end of the spring (6) is located in the countersunk hole (15).

7. The microwave switch according to claim 6, characterized in that: The signal transmission cavity (12) is linear, and three radio frequency connectors (13) divide the signal transmission cavity (12) into two signal transmission channels.

8. The microwave switch according to claim 7, characterized in that: The body comprises a base (11) and an end cover (10), the end cover (10) is fixed on the top surface of the base (11), the countersunk hole (15) is opened on the top surface of the end cover (10), and the vertical guide rod (2) passes through the end cover (10).

9. The microwave switch according to claim 8, characterized in that: The end cover (10) is fixed to the top surface of the base (11) by means of bolts.

10. The microwave switch according to claim 9, characterized in that: The left end, right end, front end and rear end of the end cover (10) are all fixed to the top surface of the base (11) by means of the bolts.

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