Miniaturized steady-state coaxial microwave switch

Abstract

The invention relates to the technical field of microwave switches, and discloses a miniaturized steady-state coaxial microwave switch which comprises a base, an elastic piece, an armature and a first supporting rod. When the microwave switch is used, when an external force drives one second support arm to move downwards, one first support arm enables the corresponding push rod to press downwards so as to enable the corresponding radio frequency reed to move downwards, and when the radio frequency reed is pressed downwards in place, the corresponding microwave channel is conducted. At the moment, the microwave channel can be kept in a conducting state under the magnetic action of the upper magnet on the second support arm and the lower magnet on the base; in the state, when the other second support arm moves downwards under the action of external force, the second support arm which moves downwards previously moves upwards, and the corresponding microwave channel is switched off; therefore, the microwave switch provided by the invention needs to provide a downward force in actual use, the steady-state control of the microwave channel can be realized only by the electromagnetic driving device of the single-winding coil, and the size is smaller.

Description

Technical Field

[0001] The invention relates to the technical field of microwave switches, and in particular to a miniaturized steady-state coaxial microwave switch. Background Art

[0002] Microwave switches can be divided into steady-state microwave switches and unstable microwave switches according to their ability to maintain their state.

[0003] Among them, the steady-state microwave switch can remain in the controlled state, that is, remain in the open or closed state, until it receives the opposite control signal again, and is widely used in radar and communication systems. For the non-steady-state microwave switch, after being controlled, it needs a continuous control signal to maintain its state. Once the control signal disappears, the non-holding microwave switch will automatically return to the initial state.

[0004] For the existing steady-state microwave switch, when controlling the microwave channel to be turned on and off, it is controlled by a dual-winding electromagnetic drive device, and the guide rod of the electromagnetic drive device is controlled to move up and down by applying control signals to different windings of the electromagnetic drive device, thereby realizing the switch control of the microwave channel. However, the existing dual-winding steady-state microwave switch has the problems of complex structure and large size in actual use. Summary of the invention

[0005] In view of the shortcomings of the background technology, the present invention provides a miniaturized steady-state coaxial microwave switch, and the technical problem to be solved is that the existing steady-state microwave switch has a large volume due to the use of a double-winding electromagnetic drive device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a miniaturized stable coaxial microwave switch, comprising a base, a spring, an armature and a first support rod;

[0007] The base is provided with M microwave channels, the M microwave channels include a common end, and M is a positive integer greater than 2; the bottom surface of the base is provided with mounting cavities at corresponding positions of the common end and the other end of the M microwave channels, and a radio frequency connector is installed in each mounting cavity;

[0008] Each microwave channel is provided with a radio frequency reed for controlling the on and off of the microwave channel, each radio frequency reed is connected with a push rod passing through the top surface of the base, and a spring is provided between the top end of the push rod and the top surface of the base;

[0009] The first support rod is fixed to the top surface of the base, and the upper end of the first support rod is spherical;

[0010] The spring sheet includes N first arms extending outward from a second common end, and the armature includes N second arms extending outward from a third common end, where N is a positive integer greater than 2 and less than or equal to M; an upper magnet is provided on the bottom surface of the outer end of each second arm; the spring sheet is mounted on the bottom surface of the armature, and the N first arms and the N second arms are arranged one by one at an upper and lower interval;

[0011] The spring sheet and the armature are movably arranged on the upper end of the first support rod, and when one of the N second arms moves downward due to an external force, the corresponding first arm presses a push rod to move downward;

[0012] The top surface of the base is provided with a lower magnet corresponding to each upper magnet. After the second arm moves downward into position, the upper magnet on the second arm is attracted to the corresponding lower magnet.

[0013] In a certain embodiment, all the first arms are equally spaced around the second common end, and all the second arms are equally spaced around the third common end.

[0014] In a certain embodiment, at least one positioning post is provided on a side of the third common end connected to the spring sheet, and a positioning hole matching the positioning post is provided on the spring sheet, and the positioning post passes through the positioning hole.

[0015] In a certain embodiment, the top surface of the base is provided with M grooves inwardly, and M push rods pass through the M grooves respectively, and the spring is arranged between the bottom of the groove and the top of the push rod.

[0016] In certain embodiments, N is three and M is three.

[0017] In a certain embodiment, a driving device is also installed on the top surface of the base, and the driving device includes M electromagnetic driving devices, the coils of the M electromagnetic driving devices are single-winding coils, and the telescopic rods of the M electromagnetic driving devices are arranged correspondingly to the M second arms up and down.

[0018] In a certain embodiment, the driving device includes a lower yoke and an upper yoke, the lower yoke is fixed to the top surface of the base through a second support rod, the upper yoke is fixed to the lower yoke through a third support rod, and M electromagnetic driving devices are fixed to the lower yoke and the upper yoke.

[0019] In a certain embodiment, the electromagnetic drive device includes a coil frame, a coil, a static iron core, a moving iron core and a telescopic rod;

[0020] The coil is wound on the coil frame;

[0021] The coil frame is provided with a guide hole, the static iron core is inserted into the guide hole and fixed on the lower yoke;

[0022] The moving iron core is located in the guide hole and above the static iron core; the lower end of the moving iron core is connected to the telescopic rod, and the telescopic rod can pass through the static iron core.

[0023] In a certain embodiment, the base includes a cylindrical body and a mounting portion located on the side wall of the body, the microwave channel is located on the body, the first support rod and the driving device are installed on the top surface of the body, and a mounting hole is opened on the mounting portion.

[0024] In a certain embodiment, the mounting portion is square in shape, and the mounting holes are respectively provided at two opposite corners of the mounting portion.

[0025] Compared with the prior art, the present invention has the following beneficial effects: when the microwave switch of the present invention is actually used, when an external force drives a second arm to move downward, a first arm will press down a corresponding push rod, thereby causing a corresponding radio frequency reed to move downward, and when the radio frequency reed is pressed down to a certain position, the corresponding microwave channel is turned on, and at this time, the microwave channel can be kept in a turned-on state by the magnetic force of the upper magnet on the second arm and the lower magnet on the base;

[0026] In the above state, when an external force causes the other second arm to move downward, the second arm that has moved downward before will move upward, and the corresponding microwave channel will be shut down; therefore, the microwave switch of the present invention only needs to provide a downward force in actual use. At this time, only an electromagnetic drive device with a single winding coil is needed to achieve steady-state control of the microwave channel. Compared with the use of a dual-winding electromagnetic drive device for steady-state control of the microwave switch, the volume is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a structure of the present invention in an embodiment;

[0028] Figure 2 for Figure 1 Internal cross-section of

[0029] Figure 3 is a schematic diagram of the structure of the armature in the embodiment;

[0030] Figure 4 Schematic diagram of the structure of the spring in the embodiment. DETAILED DESCRIPTION

[0031] The following is an explanation of the implementation of a miniaturized steady-state coaxial microwave switch disclosed in the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following embodiments will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0032] It should be understood that, although the terms first, second, third, etc. may be used herein to describe various components or features, these components or features should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one feature from another feature. In addition, the terms or used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0033] like Figure 1-4 As shown, a miniaturized stable coaxial microwave switch comprises a base 1, a spring 9, an armature 8 and a first support rod 7;

[0034] The base 1 is provided with M microwave channels 2, the M microwave channels include a common end, and M is a positive integer greater than 2; the bottom surface of the base 1 is provided with mounting cavities at the corresponding positions of the common end and the other end of the M microwave channels 2, and a radio frequency connector 3 is installed in each mounting cavity;

[0035] Each microwave channel 2 is provided with a radio frequency reed 4 for controlling the on and off of the microwave channel 2, each radio frequency reed 4 is connected with a push rod 5 passing through the top surface of the base 1, and a spring 6 is provided between the top end of the push rod 5 and the top surface of the base 1;

[0036] The first support rod 7 is fixed to the top surface of the base 1, and the upper end of the first support rod 7 is spherical;

[0037] like Figure 4 As shown, the spring piece 9 includes N first arms 901 extending outward from a second common end 900. Figure 3 As shown, the armature 8 includes N second arms 801 extending outward from a third common end 800, where N is a positive integer greater than 2 and less than or equal to M; an upper magnet 10 is provided on the bottom surface of the outer end of each second arm 801; a spring 9 is mounted on the bottom surface of the armature 8, and the N first arms 901 and the N second arms 801 are arranged one by one in a vertical interval;

[0038] The spring piece 9 and the armature 8 are movably arranged on the upper end of the first support rod 7. When one of the N second arms 801 moves downward due to an external force, the corresponding first arm 901 presses a push rod 5 to move downward.

[0039] The top surface of the base 1 is provided with a lower magnet 11 corresponding to each upper magnet 10 . After the second arm 901 moves downward to a position, the upper magnet 10 on the second arm 901 is attracted to the corresponding lower magnet 11 .

[0040] When the microwave switch of the present invention is actually used, when an external force drives a second arm 801 to move downward, a first arm 901 will press down the corresponding push rod 5, so that the corresponding radio frequency reed 6 will move downward. When the radio frequency reed 6 is pressed down to the right position, the corresponding microwave channel 2 will be turned on. At this time, the microwave channel 2 can be kept in the turned-on state by the magnetic force of the upper magnet 10 on the second arm 801 and the lower magnet 11 on the base 1.

[0041] In the above state, when an external force causes the other second arm 901 to move downward, the second arm 901 that has moved downward before will move upward, and the corresponding microwave channel 2 will be shut down; therefore, the microwave switch of the present invention only needs to provide a downward force in actual use. At this time, only an electromagnetic drive device with a single winding coil is needed to achieve steady-state control of the microwave channel 2. Compared with using a dual-winding electromagnetic drive device to perform steady-state control of the microwave switch, the volume is smaller.

[0042] It should be noted that the M microwave channels in this embodiment include a first common end which is an existing microwave channel structure. For example, when M is 6, the six microwave channels are a single-pole six-throw microwave channel structure.

[0043] Specifically, in this embodiment, Figure 1 and Figure 2 There are six microwave channels 2, the armature 9 has three second arms 901, and the single piece 8 has three first arms. However, it should be noted that Figure 1 and Figure 2 The number of microwave switches 2 and the number of second arms 901 are not restrictive and can be adjusted according to actual settings. For example, three microwave channels 2 and three second arms 901 can be included; or six microwave channels 2 and six second arms 901 can be included.

[0044] Specifically, in this embodiment, Figure 4 As shown, all first arms 901 are equally spaced around the second common end 900, as shown in FIG. Figure 3 As shown, all the second arms 801 are distributed at equal intervals around the third common end 800 .

[0045] In this embodiment, the armature 8 and the spring 9 are installed as follows:

[0046] At least one positioning post 802 is disposed on one side of the third common end 800 connected to the spring sheet 9 . A positioning hole 902 matching the positioning post 802 is disposed on the spring sheet 9 . The positioning post 802 passes through the positioning hole 902 .

[0047] by Figure 3 and Figure 4 Taking the armature 8 and the spring 9 in the embodiment as an example, the three second arms 801 are arranged at 120° intervals between each other, and the three first arms 901 are arranged at 120° intervals between each other. In addition, the third common end 800 includes a side wall corresponding to each second arm 801, and each side wall is provided with two positioning posts 802.

[0048] Specifically, in this embodiment, Figure 2 As shown, the top surface of the base 1 is provided with M grooves 1000 inwardly, and the M push rods 5 pass through the M grooves 1000 respectively, and the spring 6 is arranged between the bottom of the groove 1000 and the top of the push rod 5.

[0049] Specifically, in this embodiment, Figure 1 and 2 As shown, a driving device 12 is also installed on the top surface of the base 1, and the driving device 12 includes M electromagnetic driving devices 123, the coils 1231 of the M electromagnetic driving devices 123 are single-winding coils, and the telescopic rods 1234 of the M electromagnetic driving devices 123 are arranged correspondingly to the M second arms 801 up and down.

[0050] In this embodiment, Figure 2 As shown, the drive device 12 includes a lower yoke 120 and an upper yoke 124. The lower yoke 120 is fixed to the top surface of the base 1 through a second support rod 121, and the upper yoke 124 is fixed to the lower yoke 120 through a third support rod 122. M electromagnetic drive devices 12 are fixed to the lower yoke 120 and the upper yoke 124.

[0051] exist Figure 2 In the embodiment, for a single electromagnetic driving device 123, the electromagnetic driving device 123 includes a coil frame 1230, a coil 1231, a static iron core 1232, a moving iron core 1233 and a telescopic rod 1234;

[0052] The coil 1231 is wound on the coil frame 1230;

[0053] A guide hole is provided on the coil frame 1230, and the static iron core 1232 is inserted into the guide hole and fixed on the lower yoke 120;

[0054] The moving iron core 1233 is located in the guide hole and above the static iron core 1232 ; the lower end of the moving iron core 1233 is connected to the telescopic rod 1234 , and the telescopic rod 1234 can pass through the static iron core 1232 .

[0055] Specifically, in this embodiment, the base 1 includes a cylindrical body 100 and a mounting portion 101 located on the side wall of the body 100 , the microwave channel 2 is located on the body 100 , the first support rod 7 and the driving device 12 are installed on the top surface of the body 100 , and a mounting hole 1010 is opened on the mounting portion 101 .

[0056] More specifically, in this embodiment, the mounting portion 101 is in a square shape, and mounting holes 1010 are respectively provided at two opposite corners of the mounting portion 101 .

[0057] The above is based on the present invention as an inspiration. Through the above description, relevant staff can make various changes and modifications without departing from the technical idea of ​​this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A miniaturized steady-state coaxial microwave switch, characterized in that: It comprises a base (1), a spring sheet (9), an armature (8) and a first support rod (7); The base (1) is provided with M microwave channels (2), the M microwave channels (2) comprising a common end, M being a positive integer greater than 2; the bottom surface of the base (1) is provided with mounting cavities at positions corresponding to the common end and the other end of the M microwave channels (2), each mounting cavity being provided with a radio frequency connector (3); Each microwave channel (2) is provided with a radio frequency reed (4) for controlling the on and off of the microwave channel, each radio frequency reed (4) is connected to a push rod (5) passing through the top surface of the base (1), and a spring (6) is provided between the top end of the push rod (5) and the top surface of the base (1); The first support rod (7) is fixed on the top surface of the base (1), and the upper end of the first support rod (7) is spherical; The spring sheet (9) comprises N first arms (901) extending outward from a second common end (900); the armature (8) comprises N second arms (801) extending outward from a third common end (800), wherein N is a positive integer greater than 2 and less than or equal to M; an upper magnet (10) is provided on the bottom surface of the outer end of each second arm (801); the spring sheet (9) is mounted on the bottom surface of the armature (8), and the N first arms (901) and the N second arms (801) are arranged one by one with an upper and lower interval; The spring sheet (9) and the armature (8) are movably arranged on the upper end of the first support rod (7), and when one of the N second arms (801) moves downward due to an external force, the corresponding first arm (801) presses a push rod (5) to move downward; The top surface of the base (1) is provided with a lower magnet (11) corresponding to each upper magnet (10); after the second arm (801) moves downward to a position, the upper magnet (10) on the second arm (801) attracts the corresponding lower magnet (11).

2. A miniaturized steady-state coaxial microwave switch according to claim 1, characterized in that: All the first arms (901) are distributed at equal intervals around the second common end (900), and all the second arms (801) are distributed at equal intervals around the third common end (800).

3. A miniaturized steady-state coaxial microwave switch according to claim 2, characterized in that: At least one positioning column (802) is provided on a side of the third common end (800) connected to the spring sheet (9), and a positioning hole (902) matching the positioning column (802) is provided on the spring sheet (9), and the positioning column (802) passes through the positioning hole (902).

4. A miniaturized stable coaxial microwave switch according to claim 1, characterized in that: The top surface of the base (1) is provided with M grooves (1000) inwardly, and the M push rods (5) respectively pass through the M grooves (1000). The spring (6) is arranged between the bottom of the groove (1000) and the top of the push rod (5).

5. The miniaturized stable coaxial microwave switch according to claim 1, characterized in that: N is three and M is three.

6. A miniaturized stable coaxial microwave switch according to any one of claims 1 to 5, characterized in that: A driving device (12) is also installed on the top surface of the base (1), and the driving device (12) comprises M electromagnetic driving devices (123), the coils (1231) of the M electromagnetic driving devices (123) are single-winding coils, and the telescopic rods (1234) of the M electromagnetic driving devices (12) are arranged in correspondence with the M second arms (801) in the upper and lower parts.

7. A miniaturized stable coaxial microwave switch according to claim 6, characterized in that: The driving device (12) comprises a lower yoke (120) and an upper yoke (124); the lower yoke (120) is fixed to the top surface of the base (1) via a second support rod (121); the upper yoke (124) is fixed to the lower yoke (120) via a third support rod (122); and M electromagnetic driving devices (123) are fixed to the lower yoke (120) and the upper yoke (124).

8. A miniaturized stable coaxial microwave switch according to claim 7, characterized in that: The electromagnetic drive device (123) comprises a coil frame (1230), a coil (1231), a static iron core (1232), a moving iron core (1233) and a telescopic rod (1234); The coil (1231) is wound on the coil frame (1230); The coil frame (1230) is provided with a guide hole, and the static iron core (1232) is inserted into the guide hole and fixed on the lower yoke (120); The moving iron core (1232) is located in the guide hole and above the static iron core (1232); the lower end of the moving iron core (1232) is connected to the telescopic rod (1234), and the telescopic rod (1234) can pass through the static iron core (1232).

9. A miniaturized stable coaxial microwave switch according to claim 8, characterized in that: The base (1) comprises a cylindrical body (100) and a mounting portion (101) located on the side wall of the body, the microwave channel (2) is located on the body (1), the first support rod (7) and the driving device (12) are installed on the top surface of the body (100), and the mounting portion (101) is provided with a mounting hole (1010).

10. A miniaturized stable coaxial microwave switch according to claim 9, characterized in that: The mounting portion (101) is in a square shape, and the mounting holes (1010) are respectively provided at two opposite corners of the mounting portion (101).

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