Current-driven multilayer structure microwave oscillator

Abstract

The invention discloses a current-driven multilayer structure microwave oscillator, and relates to the technical field of microwave oscillators, the current-driven multilayer structure microwave oscillator comprises a mounting shell internally provided with a conductive net and externally provided with a joint, and the joint is internally provided with a sliding ring and a plurality of triangular elastic sheets fixedly mounted on the sliding ring. When the plug is inserted into the connector, the threaded part of the plug is rotated, the threaded part moves along the thread on the inner wall of the mounting cylinder, the sliding ring moves in the direction away from the plug, the elastic pieces move in the direction away from the middle of the mounting cylinder under the pushing of the connecting end, and the multiple cylindrical elastic pieces are flush with the outer wall of the end of the plug; the elastic sheets are in contact with the end of the plug, the sliding ring is electrically connected with the conductive net, the conductive net is matched with the sliding ring, the elastic sheets and the end of the plug to form a Faraday cage capable of blocking electromagnetic waves, and the anti-electromagnetic interference capacity of the joint of the plug and the connector is higher under double-layer protection of the mounting cylinder and the elastic sheets.

Description

Technical Field

[0001] This invention relates to the field of microwave oscillator technology, specifically to a current-driven multilayer microwave oscillator. Background Technology

[0002] The microwave oscillator is the core component of a microwave signal generator. As a local oscillator, it is also a core component of vector network analyzers, spectrum analyzers, and test receivers, significantly impacting the overall performance of the instrument. It generates microwaves by converting the DC power signal output from a DC power supply into a radio frequency signal in the microwave band.

[0003] For example, the invention patent with application publication number CN116598738B, application publication date October 13, 2023, and titled "A Four-Port Frequency Selective Network and its Constructed Microwave Oscillator," includes a first-port network, a second-port network, a third-port network, and a fourth-port network with identical network structures. The first-port network and the third-port network are symmetrical about a first axis of symmetry; the second-port network and the fourth-port network are symmetrical about the first axis of symmetry; the first-port network and the second-port network are symmetrical about a second axis of symmetry; the third-port network and the fourth-port network are symmetrical about the second axis of symmetry; and the first and second axes of symmetry intersect perpendicularly. Each port network... Each network structure includes: a port coupling unit and a first resonant unit that are parallel coupled through a gap; the port coupling unit of the first port network is parallel coupled to the port coupling unit of the second port network; one end of the first resonant unit of the first port network is connected to one end of the first resonant unit of the third port network; the other ends of the first resonant units of the first port network and the third port network are both open-circuited; the port coupling unit of the third port network is parallel coupled to the port coupling unit of the fourth port network; one end of the first resonant unit of the second port network is connected to one end of the first resonant unit of the fourth port network; the other ends of the first resonant units of the second port network and the fourth port network are both open-circuited.

[0004] The shortcoming of the existing technology is that microwave oscillators are easily affected by noise or electromagnetic waves during operation, especially when the connectors and signal transmission plugs on the microwave oscillator are made of different materials. Different materials have different conductivity properties, resulting in higher resistance at the connection point. The connectors are not easy to form a complete, electromagnetic interference-resistant conductive circuit with the microwave oscillator housing and the connectors. This makes the microwave signal transmission at the connection point between the connectors and plugs susceptible to interference from external electromagnetic waves. Summary of the Invention

[0005] The purpose of this invention is to provide a current-driven multilayer microwave oscillator to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mounting shell comprising an internal conductive mesh and an external connector, wherein the connector is internally provided with a sliding ring and a plurality of triangular elastic pieces fixedly mounted on the sliding ring, and the plurality of elastic pieces are brought together to form a conical sealing cover covering the outside of the internal connecting end of the connector; It also includes a plug, which is inserted into the interior of the plug and drives the sliding ring to move. The sliding ring is electrically connected to the conductive mesh, and a plurality of elastic pieces are cylindrical and clamped to the outer wall of the plug.

[0007] As a further description of the above technical solution: a locking block is provided on the side wall of the elastic sheet, and a connecting groove adapted to the locking block is provided on the plug.

[0008] As a further description of the above technical solution: the bottom of the connector is provided with a ash discharge port and a sealing plate for sealing the ash discharge port.

[0009] As a further description of the above technical solution: a movable strip is slidably disposed on the sliding ring and located on the moving path of the plug, the movable strip driving the sliding ring to move and move independently to a predetermined position.

[0010] As a further description of the above technical solution: a rotating ring is provided inside the connector, and the rotating ring rotates to fix the movable strip inside the connector.

[0011] As a further description of the above technical solution: the rotating ring is provided with a second guide groove that matches the tenon on the movable strip, the second guide groove including a movable groove and a locking groove.

[0012] As a further description of the above technical solution: the sealing plate is provided with a protrusion extending into the interior of the rotating ring and used to push the rotating ring to rotate.

[0013] As a further description of the above technical solution: the rotating ring is provided with a first guide groove that is adapted to the protrusion, the first guide groove including a straight part and an inclined part.

[0014] As a further description of the above technical solution: a counterweight is provided on the rotating ring, and the width of the inclined part increases along the moving direction of the protrusion.

[0015] As a further description of the above technical solution: the connector is provided with a connecting ring that is connected to the conductive mesh, and the mounting ring is provided with a plug ring that extends into the connecting ring.

[0016] In the above technical solution, the present invention provides a current-driven multilayer structure microwave oscillator. When the microwave oscillator is not working, the sliding ring is flush with the connection end inside the connector. Multiple triangular elastic plates on the sliding ring move towards the center of the mounting cylinder under their own elasticity, forming a conical sealing cover. The sealing cover seals the connection end, preventing dust in the air from adhering to the connection end. When the plug is inserted into the connector, the threaded part of the plug is rotated, and the threaded part moves along the thread on the inner wall of the mounting cylinder. The sliding ring moves away from the plug, and the elastic plates move away from the center of the mounting cylinder under the push of the connection end. The multiple elastic plates are cylindrical and flush with the outer wall of the plug end. The multiple elastic plates are in contact with the plug end. At the same time, the sliding ring is electrically connected to the conductive mesh. The conductive mesh, together with the sliding ring, elastic plates, and plug end, forms a Faraday cage that can block electromagnetic waves. The connection between the plug and the connector has stronger anti-electromagnetic interference capability under the double protection of the mounting cylinder and elastic plates. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the internal structure of the mounting cylinder provided in an embodiment of the present invention; Figure 4 for Figure 3 Enlarged view at point B in the middle; Figure 5 This is a schematic diagram of the structure of the sliding ring provided in an embodiment of the present invention; Figure 6 for Figure 5 Enlarged view at point C; Figure 7 This is a schematic diagram of the structure of the sealing cover provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the plug connection structure provided in an embodiment of the present invention; Figure 9 for Figure 8 Enlarged view at point D; Figure 10 This is a schematic diagram of the connecting ring provided in an embodiment of the present invention; Figure 11 for Figure 10 Enlarged view at point E in the middle; Figure 12 This is a schematic diagram of the card block structure provided in an embodiment of the present invention; Figure 13 This is a schematic diagram of the unfolded inner wall of the rotating ring portion provided in an embodiment of the present invention; Figure 14 This is a schematic diagram of the structure of a conductive mesh provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Connector; 11. Mounting cylinder; 111. Sliding ring; 112. Elastic sheet; 113. Locking block; 114. Insert ring; 115. Connecting ring; 116. Sealing cover; 117. Ash discharge port; 118. Sealing plate; 119. Raised strip; 12. Movable strip; 121. Connecting strip; 122. Sliding block; 123. Tenon; 124. Rotating ring; 125. Connecting rod; 126. Raised block; 127. Counterweight; 131. First guide groove; 132. Second guide groove; 133. Straight part; 134. Inclined part; 135. Movable groove; 136. Locking groove; 14. Connecting end; 2. Plug; 21. Threaded part; 22. Connecting groove; 3. Mounting shell; 31. Conductive mesh; 32. Base plate. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Please see Figure 1-14 The present invention provides a technical solution: including a mounting shell 3 with an internal conductive mesh 31 and an external connector 1. The connector 1 has a sliding ring 111 and a plurality of triangular elastic pieces 112 fixedly mounted on the sliding ring 111. The plurality of elastic pieces 112 are brought together to form a conical sealing cover 116 covering the outside of the internal connecting end 14 of the connector 1. It also includes a plug 2, which is inserted into the plug 2 and drives the sliding ring 111 to move. The sliding ring 111 is electrically connected to the conductive mesh 31. Multiple elastic pieces 112 are cylindrical and clamped on the outer wall of the plug 2.

[0022] Specifically, the mounting shell 3 also includes a base plate 32 fixedly installed at its bottom and grounded. The base plate 32 is electrically connected to the conductive mesh 31 in the mounting shell 3. The conductive mesh 31 is specifically made of copper alloy. The connector 1 includes a mounting cylinder 11 fixedly installed on the mounting shell 3. A sliding ring 111 is slidably installed in the mounting cylinder 11. The connector 1 is provided with a threaded part 21. The inner wall of the mounting cylinder 11 is provided with a thread that matches the threaded part 21.

[0023] Furthermore, when the microwave oscillator is not working, the sliding ring 111 is flush with the connecting end 14 inside the connector 1. Multiple triangular elastic plates 112 on the sliding ring 111 move towards the center of the mounting cylinder 11 under their own elasticity, forming a conical sealing cover 116. The sealing cover 116 seals the connecting end 14, preventing dust from the air from adhering to it. When the plug 2 is inserted into the connector 1, the threaded portion 21 of the plug 2 is rotated. The threaded portion 21 moves along the threads on the inner wall of the mounting cylinder 11, and the sliding ring 111 moves away from the plug. As the plug moves in the direction of 2, the elastic sheet 112 moves away from the center of the mounting cylinder 11 under the push of the connecting end 14. The multiple elastic sheets 112 are cylindrical and flush with the outer wall of the end of the plug 2. The multiple elastic sheets 112 are in contact with the end of the plug 2. At the same time, the sliding ring 111 is electrically connected to the conductive mesh 31. The conductive mesh 31, together with the sliding ring 111, the elastic sheet 112, and the end of the plug 2, forms a Faraday cage that can block electromagnetic waves. The connection between the plug 2 and the connector 1 has a stronger ability to resist electromagnetic interference under the double protection of the mounting cylinder 11 and the elastic sheet 112.

[0024] In another embodiment of the present invention, a locking block 113 is provided on the side wall of the elastic sheet 112, and a connecting groove 22 adapted to the locking block 113 is provided on the plug 2.

[0025] Specifically, the card block 113 is made of copper alloy.

[0026] Furthermore, when the plug 2 is inserted into the connector 1, the sliding ring 111 drives the elastic piece 112 to move. The elastic piece 112 is pushed by the connecting end 14 in the connector 1, causing the elastic piece 112 to deform. Multiple elastic pieces 112 separate, changing from a conical shape to a cylindrical shape. The end of the plug 2 continues to be inserted and further pushes against the locking block 113 on the elastic piece 112, allowing the locking block 113 to clear the path for the plug 2 to move until the end of the plug 2 abuts against the connecting end 14. At this time, the locking block 113 is aligned with the connecting groove 22 at the end of the plug 2 and is inserted into the connecting groove 22 under the push of the elastic piece 112. The elastic piece 112, the locking block 113 and the plug 2 are electrically connected, forming a conductive cage around the plug 2, thereby improving the electromagnetic interference resistance of the connection between the plug 2 and the connector 1.

[0027] In another embodiment of the present invention, the bottom of the connector 1 is provided with a ash discharge port 117 and a sealing plate 118 for sealing the ash discharge port 117.

[0028] Specifically, the sealing plate 118 is provided with a protrusion 119 extending into the moving path of the plug 2. The sealing plate 118 is slidably mounted on the mounting cylinder 11 and a spring is provided between the two. The sealing plate 118 and the mounting cylinder 11 are made of the same conductive metal.

[0029] Furthermore, as the plug 2 moves into the connector 1, the sliding ring 111 drives the elastic sheet 112 to move, and the elastic sheet 112 deforms under the push of the connecting end 14, shaking off the dust adhering to the elastic sheet 112. The shaken-off dust can be discharged from the dust discharge port 117, preventing dust from accumulating in the plug 2. As the plug 2 continues to move, the side wall of the threaded portion 21 of the plug 2 pushes against the protrusion 119, thereby pushing the sealing plate 118 to move into the mounting cylinder 11 until the end of the plug 2. The sealing plate 118 abuts against the connecting end 14 and seals the ash discharge port 117. The sealing plate 118 and the mounting cylinder 11 cooperate to form a protective shell at the connection between the plug 2 and the connecting end 14. When the plug 2 is pulled out of the connector 1, the sealing plate 118 is reset under the action of the spring, the ash discharge port 117 reopens, and the ash discharge port 117 is located below the sealing cover 116. Dust that collides with the sealing cover 116 in the flowing air can fall along the arc surface of the conical sealing cover 116 and then fall outside the mounting cylinder 11.

[0030] In another embodiment of the present invention, a movable strip 12 located on the moving path of the plug 2 is slidably disposed on the sliding ring 111, and the movable strip 12 drives the sliding ring 111 to move and move independently to a predetermined position.

[0031] Specifically, the movable strip 12 is axially slidably installed in the mounting cylinder 11. Connecting strips 121 are symmetrically arranged on the movable strip 12. A square slider 122 extending into the sliding ring 111 is provided on the connecting strip 121. A tenon groove adapted to the slider 122 is opened on the sliding ring 111. A spring is provided between the slider 122 and the sliding ring 111. A spring is provided between the movable strip 12 and the mounting cylinder 11.

[0032] Furthermore, as the plug 2 moves into the mounting cylinder 11, the plug 2 pushes the movable bar 12. The slider 122 on the movable bar 12 pushes the sliding ring 111 into the mounting cylinder 11 via a spring (the spring is partially compressed). When the sliding ring 111 moves to the predetermined position (the sliding ring 111 is electrically connected to the conductive mesh 31), the sliding ring 111 can no longer move, while the plug 2 continues to push the movable bar 12 to move. The movable bar 12 pushes the slider 122 via the connecting bar 121. The spring between the slider 122 and the mounting cylinder 11 is further compressed, and the movable bar 12 moves independently relative to the sliding ring 111. At the same time, the threaded part 21 of the plug 2 pushes the sealing plate 118 to move via the protrusion 119, gradually sealing the ash discharge port 117.

[0033] In another embodiment of the present invention, a rotating ring 124 is provided inside the connector 1, and the rotating ring 124 rotates to fix the movable strip 12 inside the connector 1.

[0034] Specifically, when the plug 2 moves into the mounting cylinder 11, the plug 2 pushes the movable strip 12 to move. The spring between the movable strip 12 and the mounting cylinder 11 accumulates elastic potential energy, and the spring between the slider 122 and the sliding ring 111 accumulates elastic potential energy. When the movable strip 12 moves to the predetermined position, the rotating ring 124 rotates relative to the mounting cylinder 11, fixing the movable strip 12 in the mounting cylinder 11, thus preventing the spring from continuously pushing the plug 2 and causing the plug 2 to loosen.

[0035] In another embodiment of the present invention, the rotating ring 124 is provided with a second guide groove 132 that is adapted to the tenon 123 on the movable strip 12. The second guide groove 132 includes a movable groove 135 and a locking groove 136.

[0036] Specifically, the tenon 123 is fixedly installed on the connecting strip 121, and the rotating ring 124 has a notch that communicates with the movable groove 135 of the second guide groove 132.

[0037] Furthermore, during the movement of the movable strip 12, the tenon 123 on the connecting strip 121 enters the movable groove 135 on the second guide groove 132 through the notch on the rotating ring 124. At this time, the tenon 123 can move relative to the rotating ring 124. When the tenon 123 moves to the end of the movable groove 135, the tenon 123 is directly facing the locking groove 136. The rotating ring 124 rotates to make the tenon 123 embed into the locking groove 136. The locking groove 136 fixes the movable strip 12 in the mounting cylinder 11 through the tenon 123, preventing the movable strip 12 from continuously pushing the plug 2 and causing the plug 2 to loosen.

[0038] In another embodiment of the present invention, the sealing plate 118 is provided with a protrusion 126 extending into the interior of the rotating ring 124 and used to push the rotating ring 124 to rotate. The rotating ring 124 is provided with a first guide groove 131 adapted to the protrusion 126. The first guide groove 131 includes a straight portion 133 and an inclined portion 134.

[0039] Specifically, the sealing plate 118 is provided with a connecting rod 125, the connecting rod 125 is provided with a protrusion 126, and the rotating ring 124 is provided with a notch that communicates with the first guide groove 131.

[0040] Furthermore, as the plug 2 moves into the mounting cylinder 11, the plug 2 pushes the sealing plate 118 to move, and the protrusion 126 on the connecting rod 125 enters the first guide groove 131 on the rotating ring 124 through the notch on the rotating ring 124. The protrusion 126 moves along the straight part 133 of the first guide groove 131. At this time, the rotating ring 124 does not rotate. When the protrusion 126 moves to the end of the straight part 133 and enters the inclined part 134, the protrusion 126 pushes the rotating ring 124 to rotate. When the protrusion 126 moves to the end of the inclined part 134, the locking groove 136 on the rotating ring 124 locks the tenon 123, thereby fixing the movable strip 12 in the mounting cylinder 11.

[0041] In another embodiment of the present invention, a counterweight 127 is provided on the rotating ring 124, and the width of the inclined portion 134 increases along the moving direction of the protrusion 126.

[0042] Specifically, the counterweight 127 is located directly above the rotating ring 124.

[0043] Furthermore, as the protrusion 126 moves along the inclined section 134, the protrusion 126 pushes the rotating ring 124 to rotate, causing the counterweight 127 to shift, which in turn shifts the center of gravity of the rotating ring 124. When the protrusion 126 moves to the end of the inclined section 134, the gravity of the counterweight 127 pushes the rotating ring 124 to rotate. At the same time, the tenon 123 is located at the end of the movable groove 135 and is directly opposite the locking groove 136. The rotating ring 124 rotates and the tenon 123 is engaged in the locking groove 136. The locking groove 136, together with the tenon 123, fixes the movable strip 12 in the mounting cylinder 11.

[0044] In another embodiment of the present invention, the connector 1 is provided with a connecting ring 115 connected to the conductive mesh 31, and the mounting ring is provided with a plug ring 114 extending into the connecting ring 115.

[0045] Specifically, both the connecting ring 115 and the insert ring 114 are made of copper alloy, and the connecting ring 115 has a groove that matches the insert ring 114.

[0046] Furthermore, as the plug 2 moves into the mounting cylinder 11, the plug 2 pushes the sliding ring 111 into the mounting cylinder 11 via the movable strip 12, and gradually approaches the connecting ring 115 until the sliding ring 111 abuts against the connecting ring 115. The insert ring 114 is inserted into the groove on the connecting ring 115, so that the sliding ring 111 is electrically connected to the connecting ring 115 through the insert ring 114, thereby making the mounting cylinder 11 electrically connected to the conductive mesh 31.

[0047] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A current-driven multilayer microwave oscillator, characterized in that, The mounting shell (3) includes an internal conductive mesh (31) and an external connector (1). The connector (1) has a sliding ring (111) inside and a plurality of triangular elastic pieces (112) fixedly installed on the sliding ring (111). The plurality of elastic pieces (112) are brought together to form a conical sealing cover (116) covering the outside of the internal connecting end (14) of the connector (1). It also includes a plug (2), which is inserted into the plug (2) and drives the sliding ring (111) to move. The sliding ring (111) is electrically connected to the conductive mesh (31). A plurality of elastic pieces (112) are cylindrical and clamped on the outer wall of the plug (2).

2. The current-driven multilayer microwave oscillator according to claim 1, characterized in that, A locking block (113) is provided on the side wall of the elastic sheet (112), and a connecting groove (22) adapted to the locking block (113) is provided on the plug (2).

3. The current-driven multilayer microwave oscillator according to claim 1, characterized in that, The bottom of the connector (1) is provided with a ash discharge port (117) and a sealing plate (118) for sealing the ash discharge port (117).

4. A current-driven multilayer microwave oscillator according to claim 3, characterized in that, The sliding ring (111) is slidably provided with a movable strip (12) located on the moving path of the plug (2), and the movable strip (12) drives the sliding ring (111) to move and move independently to a predetermined position.

5. A current-driven multilayer microwave oscillator according to claim 4, characterized in that, The connector (1) is provided with a rotating ring (124) inside, which rotates to fix the movable strip (12) inside the connector (1).

6. A current-driven multilayer microwave oscillator according to claim 5, characterized in that, The rotating ring (124) is provided with a second guide groove (132) that matches the tenon (123) on the movable strip (12). The second guide groove (132) includes a movable groove (135) and a locking groove (136).

7. A current-driven multilayer microwave oscillator according to claim 5, characterized in that, The sealing plate (118) is provided with a protrusion (126) extending into the interior of the rotating ring (124) and used to push the rotating ring (124) to rotate.

8. A current-driven multilayer microwave oscillator according to claim 7, characterized in that, The rotating ring (124) is provided with a first guide groove (131) that is adapted to the protrusion (126). The first guide groove (131) includes a straight part (133) and an inclined part (134).

9. A current-driven multilayer microwave oscillator according to claim 8, characterized in that, The rotating ring (124) is provided with a counterweight (127), and the width of the inclined part (134) increases along the moving direction of the protrusion (126).

10. A current-driven multilayer microwave oscillator according to claim 1, characterized in that, The connector (1) is provided with a connecting ring (115) that is connected to the conductive mesh (31), and the mounting ring is provided with a plug ring (114) that extends into the connecting ring (115).

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