Miniaturized steady-state coaxial microwave switch

Abstract

The utility model relates to the technical field of microwave switches, and discloses a miniaturized steady-state coaxial microwave switch, which comprises a base, an elastic sheet, an armature and a first support rod, when the microwave switch provided by the utility model is used, when an external force drives one second support arm to move downwards, one first support arm can press the corresponding push rod downwards, so that the corresponding radio frequency reed moves 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 utility model 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 utility model relates to microwave switch technical field, concretely relates to a kind of miniaturized steady-state coaxial microwave switch. BACKGROUND

[0002] Microwave switch, according to the ability of state retention can be divided into steady-state microwave switch and non-steady-state microwave switch.

[0003] Among them, steady-state microwave switch can be kept in the state of being controlled, that is, kept in the state of being turned on or turned off, until receiving the opposite control signal again, and is widely used in radar and communication system.For non-steady-state microwave switch, it needs a continuous control signal to maintain its state after being controlled, and it will automatically return to the initial state once the control signal disappears.

[0004] For the existing steady-state microwave switch, when controlling the conduction and shutdown of microwave channel, it is controlled by the electromagnetic drive device of double winding, the electromagnetic drive device is controlled to move up and down on the guide rod by applying control signal to different winding of electromagnetic drive device, and then the switch control of microwave channel is realized.And the existing steady-state microwave switch based on double winding has the problems of complex structure and large size in actual use. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the background art, the utility model provides a kind of miniaturized steady-state coaxial microwave switch, and the technical problems to be solved are the problem of large size of existing steady-state microwave switch due to the use of electromagnetic drive device of double winding.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: a kind of miniaturized steady-state coaxial microwave switch, including base, elastic sheet, armature and first support rod;

[0007] M microwave channels are provided in the base, and 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 a mounting cavity at the corresponding position 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-off of the microwave channel, and each radio frequency reed is connected with a push rod penetrating 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 in spherical shape;

[0010] The spring 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; each second arm has an upper magnet on its bottom surface near its outer end; the spring is mounted on the bottom surface of the armature, and the N first arms and N second arms are arranged vertically and vertically in a corresponding manner;

[0011] The spring and armature are movably mounted on the upper end of the first support rod. When one of the N second arms is moved downward by an external force, the corresponding first arm presses down on a push rod and moves downward.

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

[0013] In one implementation, 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 one embodiment, the third common end is provided with at least one positioning post on the side connected to the spring piece, and the spring piece is provided with a positioning hole that matches the positioning post, through which the positioning post passes.

[0015] In one embodiment, the top surface of the base has M grooves opening inward, and M push rods pass through the M grooves respectively. The spring is disposed between the bottom of the groove and the top of the push rod.

[0016] In one implementation, N is three and M is three.

[0017] In one embodiment, a driving device is also installed on the top surface of the base. 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 vertically and vertically corresponding to the M second arms.

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

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

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

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

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

[0023] In one 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 mounted on the top surface of the body, and the mounting portion has mounting holes.

[0024] In one embodiment, the mounting part is square in shape, and the mounting hole is provided at each of the two opposite corners of the mounting part.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows: When the microwave switch of this utility model is used in practice, when an external force drives a second arm to move downward, a first arm will press down the corresponding push rod, thereby causing the corresponding radio frequency spring to move downward. When the radio frequency spring is pressed down to the position, the corresponding microwave channel is turned on. At this time, the microwave channel can be kept in the conducting 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 already moved downward will move upward, and the corresponding microwave channel will be turned off. Therefore, the microwave switch of this utility model only needs to provide a downward force in actual use. At this time, only a single-winding coil electromagnetic drive device is needed to achieve steady-state control of the microwave channel. Compared with using a double-winding electromagnetic drive device to perform steady-state control of the microwave switch, the size is smaller. Attached Figure Description

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

[0028] Figure 2 for Figure 1 Internal cross-sectional view;

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

[0030] Figure 4 This is a schematic diagram of the spring sheet in the embodiment. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of a miniaturized steady-state coaxial microwave switch disclosed in this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustrative purposes only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0032] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or features, these components or features should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one feature from another. Furthermore, the terms used in this document may, as appropriate, include any combination of one or more related items listed.

[0033] like Figures 1-4 As shown, a miniaturized steady-state coaxial microwave switch includes a base 1, a spring 9, an armature 8, and a first support rod 7.

[0034] The base 1 has M microwave channels 2 inside, and the M microwave channels include a common terminal, where M is a positive integer greater than 2; the bottom surface of the base 1 has mounting cavities at the corresponding positions of the common terminal and the other end of the M microwave channels 2, and each mounting cavity is equipped with an RF connector 3.

[0035] Each microwave channel 2 is provided with an RF spring 4 that controls the on / off state of the microwave channel 2. Each RF spring 4 is connected to a push rod 5 that passes through the top surface of the base 1. A spring 6 is provided between the top 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 9 includes N first arms 901 extending outward from a second common end 900, as... 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; each second arm 801 has an upper magnet 10 on its bottom surface near its outer end; a spring piece 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 vertically and vertically in a corresponding manner.

[0038] The spring 9 and armature 8 are movable up and down on the upper end of the first support rod 7. When one of the N second arms 801 is moved downward by an external force, the corresponding first arm 901 presses down a push rod 5 and moves 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 down into place, the upper magnet 10 on the second arm 901 attracts the corresponding lower magnet 11.

[0040] In actual use, when an external force drives a second arm 801 to move downward, a first arm 901 will cause the corresponding push rod 5 to press down, thereby causing the corresponding radio frequency spring 6 to move downward. When the radio frequency spring 6 is pressed down to the position, the corresponding microwave channel 2 is turned on. At this time, the magnetic force of the upper magnet 10 on the second arm 801 and the lower magnet 11 on the base 1 can keep the microwave channel 2 in the on state.

[0041] In the above state, when an external force causes the other second arm 901 to move downward, the previously lowered second arm 901 will move upward, and the corresponding microwave channel 2 will be turned off. Therefore, the microwave switch of this utility model only needs to provide a downward force in actual use. At this time, only a single-winding coil electromagnetic drive device is needed to achieve steady-state control of microwave channel 2. Compared with using a double-winding electromagnetic drive device to perform steady-state control of microwave switch, it has a smaller size.

[0042] It should be noted that in this embodiment, the M microwave channels include a first common terminal 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 chip 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 limited and can be adjusted according to the actual settings. For example, it can include three microwave channels 2 and three second arms 901; or it can include six microwave channels 2 and six second arms 901.

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

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

[0046] The third common end 800 is provided with at least one positioning post 802 on the side connected to the spring piece 9. The spring piece 9 is provided with a positioning hole 902 that matches the positioning post 802, and the positioning post 802 passes through the positioning hole 902.

[0047] by Figure 3 and Figure 4 Taking the armature 8 and spring 9 as examples, the three second arms 801 are arranged at 120° intervals in pairs, and the three first arms 901 are arranged at 120° intervals in pairs. 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, as Figure 2 As shown, the top surface of the base 1 has M grooves 1000 inwardly, and M push rods 5 pass through the M grooves 1000 respectively. The spring 6 is located between the bottom of the groove 1000 and the top of the push rod 5.

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

[0050] In this embodiment, as 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 by a second support rod 121, and the upper yoke 124 is fixed to the lower yoke 120 by 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 process, for a single electromagnetic drive device 123, the electromagnetic drive device 123 includes a coil frame 1230, a coil 1231, a stationary iron core 1232, a moving iron core 1233, and a telescopic rod 1234;

[0052] Coil 1231 is wound on coil frame 1230;

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

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

[0055] Specifically, in this embodiment, the base 1 includes a cylindrical body 100 and a mounting part 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 mounted on the top surface of the body 100. The mounting part 101 is provided with mounting holes 1010.

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

[0057] Based on the above description and inspired by this utility model, those skilled in the art 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 contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A miniaturized steady-state coaxial microwave switch, characterized in that, Includes a base (1), a spring (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) include a common terminal, 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 terminal and the other end of the M microwave channels (2), and each mounting cavity is provided with an RF connector (3). Each microwave channel (2) is provided with a radio frequency spring (4) for controlling the on and off of the microwave channel. Each radio frequency spring (4) is connected to a push rod (5) that passes through the top surface of the base (1). A spring (6) is provided between the top of the push rod (5) and the top surface of the base (1). 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; The spring (9) includes N first arms (901) extending outward from a second common end (900), and 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; each second arm (801) has an upper magnet (10) on its outermost bottom surface; the 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 vertically and vertically in a corresponding manner; The spring (9) and armature (8) are movably mounted on the upper end of the first support rod (7). When one of the N second arms (801) moves downward under external force, the corresponding first arm (901) presses down a push rod (5) and moves 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 down into place, the upper magnet (10) on the second arm (801) attracts the corresponding lower magnet (11).

2. The miniaturized steady-state coaxial microwave switch according to claim 1, characterized in that, All first arms (901) are equally spaced around the second common end (900), and all second arms (801) are equally spaced around the third common end (800).

3. A miniaturized steady-state coaxial microwave switch according to claim 2, characterized in that, The third common end (800) is provided with at least one positioning post (802) on the side connected to the spring piece (9). The spring piece (9) is provided with a positioning hole (902) that matches the positioning post (802). The positioning post (802) passes through the positioning hole (902).

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

5. A miniaturized steady-state coaxial microwave switch according to claim 1, characterized in that, N is three, M is three.

6. A miniaturized steady-state coaxial microwave switch according to any one of claims 1-5, characterized in that, The top surface of the base (1) is also equipped with a drive device (12), which includes M electromagnetic drive devices (123). The coils (1231) of the M electromagnetic drive devices (123) are single-winding coils. The telescopic rods (1234) of the M electromagnetic drive devices (123) are arranged vertically and vertically in correspondence with the M second arms (801).

7. A miniaturized steady-state coaxial microwave switch according to claim 6, characterized in that, The driving 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) by a second support rod (121), and the upper yoke (124) is fixed to the lower yoke (120) by a third support rod (122). M electromagnetic driving devices (123) are fixed to the lower yoke (120) and the upper yoke (124).

8. A miniaturized steady-state coaxial microwave switch according to claim 7, characterized in that, The electromagnetic drive device (123) includes a coil frame (1230), a coil (1231), a stationary 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) has a guide hole, and the stationary iron core (1232) is inserted into the guide hole and fixed on the lower yoke (120). The moving iron core (1233) is located inside the guide hole and above the stationary 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 stationary iron core (1232).

9. A miniaturized steady-state coaxial microwave switch according to claim 8, characterized in that, The base (1) includes a cylindrical body (100) and a mounting part (101) located on the side wall of the body. The microwave channel (2) is located on the body (100). The first support rod (7) and the driving device (12) are mounted on the top surface of the body (100). The mounting part (101) has a mounting hole (1010).

10. A miniaturized steady-state coaxial microwave switch according to claim 9, characterized in that, The mounting part (101) is square in shape, and the mounting part (101) has mounting holes (1010) on two opposite corners.

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