Resonant structure of microwave sensor

Abstract

The utility model relates to the technical field of sensors, and particularly discloses a microwave sensor resonance structure, which comprises a mounting shell, mounting plates are mounted at two ends in the mounting shell, two ends of each mounting plate are abutted against the inner wall of the mounting shell, fixing columns are mounted on opposite surfaces of the two mounting plates, coils are wound on the outer walls of the fixing columns, and the coils are wound on the outer walls of the fixing columns. Mounting holes are formed in the two sides of the outer wall of the bottom end of the mounting shell in the length direction, supporting rods are mounted on the inner walls of the mounting holes, rotating plates are rotationally mounted on the supporting rods, sliding holes are formed in the positions, away from the supporting rods, of the two ends of the side face of each rotating plate in the length direction, and adjusting bolts are movably mounted in the sliding holes. According to the utility model, heat emitted by the coil can be continuously radiated to the outside through the two ends of the protective cylinder and the mounting holes, and a better radiating effect on the coil can be achieved during use.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a microwave sensor resonant structure. Background Art

[0002] Microwave sensors are devices that use microwave characteristics to detect some physical quantities. This includes sensing the existence of objects, movement speed, distance, angle and other information. In order to facilitate the microwave sensor to monitor the outside world, a resonant device is installed inside it. When an oscillating system is subjected to periodic external forces, when the frequency of the external force is the same as or very close to the inherent oscillation frequency of the system, the amplitude increases sharply. The frequency when resonance occurs is called "resonance frequency". In electrical engineering, the resonance phenomenon of an oscillating circuit. The resonance of an inductor and a capacitor in series is called "series resonance" or "voltage resonance"; the resonance of a parallel circuit is called "parallel resonance" or "current resonance".

[0003] The Chinese utility model patent with application number 202123280775.3 discloses a "resonant cavity structure", including a shielding cover for shielding magnetic field interference, two coils arranged in the shielding cover, and a fixing part arranged in the shielding cover. The shielding cover is a hollow structure, the two coils are spiral-shaped, and the two coils are coaxially rotated and staggered; when the coil generates heat during use, the heat emitted by the coil inside the protective shell cannot be quickly dissipated, resulting in the coil affecting the use of the microwave sensor due to its high surface temperature during use. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a microwave sensor resonant structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A microwave sensor resonance structure comprises a mounting shell, mounting plates are mounted at both ends of the mounting shell, both ends of the mounting plates are in contact with the inner wall of the mounting shell, fixing columns are mounted on opposite surfaces of the two mounting plates, a coil is wound and mounted on the outer wall of the fixing column, mounting holes are opened on both sides of the outer wall of the bottom end of the mounting shell in the length direction, a support rod is mounted on the inner wall of the mounting hole, a rotating plate is rotatably mounted on the support rod, sliding holes are opened in the length direction at both ends of the side of the rotating plate away from the support rod, and adjusting bolts are movably mounted inside the sliding holes.

[0007] Preferably, the support rod is installed on the inner wall of the bottom end of the rotating plate, a slot is provided at the top of the rotating plate, a block matching the slot is installed at the inner top of the mounting hole, protective tubes are installed on the opposite surfaces of the two mounting plates, and the coil and the fixing column are both located inside the protective tube.

[0008] Preferably, mounting covers are installed at both ends of the mounting shell, connecting plates are installed at the middle ends of two mounting plates close to the mounting covers, and limiting blocks are installed at both ends of the mounting plates close to the connecting plates.

[0009] Preferably, both ends of the mounting cover close to the mounting shell are provided with limiting grooves, one end of the limiting block away from the mounting plate is located inside the limiting groove, a rubber plate is installed at the middle end of the mounting cover away from the mounting shell, a connecting hole is provided on the side of the rubber plate, and the connecting hole passes through the rubber plate and the mounting cover.

[0010] Preferably, a plurality of screw holes are provided on the side surface of the mounting cover near the edge, the screw holes penetrate the side surface of the mounting cover and the mounting shell, and fixing bolts are installed in the internal threads of the screw holes.

[0011] Preferably, the protective tube is located between the coil and the inner wall of the mounting shell, a connecting block is installed at one end of the outer wall of the mounting shell, and two ends of the rotating plate are respectively abutted against the inner walls of both sides of the mounting hole.

[0012] Preferably, two ends of the coil are electrically connected to connecting plates on two mounting plates respectively, and the connecting plates are located on the sides of the connecting holes.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the adjusting bolt can fix the position of the mounting shell through the rotating plate. When the staff stores the mounting shell and waits for use, the staff can rotate the rotating plate to the inside of the mounting hole, and the card block at the top of the mounting hole is inserted into the card slot on the rotating plate. When in use, the card block can fix the position of the rotating plate through the card slot, and when the mounting shell is stored, it prevents external dust from entering the inside of the mounting shell through the mounting hole, which can provide better protection for the coil.

[0015] 2. In the utility model, the coil inside the mounting shell can be connected to the outside world through the two ends of the protective tube and the mounting hole. When the coil generates heat during use, the heat emitted by the coil can be dissipated through the two ends of the protective tube to the position between the protective tube and the inner wall of the mounting shell, and then continuously dissipated to the outside world through the mounting hole again, which can achieve a good heat dissipation effect on the coil when in use.

[0016] 3. In the utility model, the external connecting wire is connected to the connecting plate through the connecting hole on the rubber plate. When in use, the connecting hole can support the end of the connecting wire close to the connecting plate to prevent the end of the connecting wire close to the connecting plate from shaking during use, resulting in loose connection between the connecting wire and the connecting plate. At the same time, the rubber plate can better protect the surface of the connecting wire when in use, preventing the external connecting wire from rubbing against the inner wall edge of the connecting hole, resulting in surface damage of the connecting wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A stereogram of a microwave sensor resonant structure proposed by the utility model;

[0018] Figure 2 A schematic diagram of the internal structure of a mounting shell of a microwave sensor resonant structure proposed by the utility model;

[0019] Figure 3 A schematic diagram of the coil installation structure of a microwave sensor resonant structure proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the mounting cover structure of a microwave sensor resonance structure proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of the rotating plate structure of a microwave sensor resonant structure proposed by the utility model.

[0022] In the figure: 1. Mounting shell; 2. Mounting cover; 3. Rotating plate; 4. Connecting block; 5. Rubber plate; 6. Mounting plate; 7. Limiting block; 8. Screw hole; 9. Protective tube; 10. Connecting plate; 11. Mounting hole; 12. Support rod; 13. Block; 14. Fixing column; 15. Coil; 16. Fixing bolt; 17. Connecting hole; 18. Limiting slot; 19. Slot; 20. Sliding hole; 21. Adjusting bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-5 A microwave sensor resonant structure includes a mounting shell 1, mounting plates 6 are installed at both ends of the interior of the mounting shell 1, both ends of the mounting plates 6 are abutted against the inner wall of the mounting shell 1, fixing columns 14 are installed on the opposite surfaces of the two mounting plates 6, and a coil 15 is wound and installed on the outer wall of the fixing column 14, mounting holes 11 are opened on both sides of the outer wall of the bottom end of the mounting shell 1 in the length direction, a support rod 12 is installed on the inner wall of the mounting hole 11, a rotating plate 3 is rotatably installed on the support rod 12, and sliding holes 20 are opened in the length direction at both ends of the side of the rotating plate 3 away from the support rod 12, and an adjusting bolt 21 is movably installed inside the sliding hole 20.

[0025] As a technical optimization scheme of the utility model, the support rod 12 is installed on the inner wall of the bottom end of the rotating plate 3, a slot 19 is opened at the top of the rotating plate 3, a block 13 matching the slot 19 is installed at the inner top of the mounting hole 11, and a protective tube 9 is installed on the opposite surfaces of the two mounting plates 6, and the coil 15 and the fixed column 14 are both located inside the protective tube 9; when in use, the block 13 can play a better position limiting role on the rotating plate 3 through the slot 19, and the rotating plate 3 can play a better protective role on the coil 15 inside the mounting shell 1.

[0026] As a technical optimization solution of the utility model, mounting covers 2 are installed at both ends of the mounting shell 1, connecting plates 10 are installed at the middle ends of the two mounting plates 6 close to the mounting covers 2, and limiting blocks 7 are installed at both ends of the mounting plates 6 close to the connecting plates 10; when in use, external connecting wires can be electrically connected to the coil 15 through the connecting plates 10, and when in use, the mounting cover 2 can play a better stabilizing role on the end of the external connecting wire close to the connecting plate 10.

[0027] As a technical optimization scheme of the utility model, limiting grooves 18 are provided at both ends of the side of the mounting cover 2 close to the mounting shell 1, and the end of the limiting block 7 away from the mounting plate 6 is located inside the limiting groove 18. A rubber plate 5 is installed at the middle end of the side of the mounting cover 2 away from the mounting shell 1, and a connecting hole 17 is provided on the side of the rubber plate 5, and the connecting hole 17 passes through the rubber plate 5 and the mounting cover 2; the mounting cover 2 can use the limiting groove 18 on its side and the limiting block 7 to better support and fix the position of the mounting plate 6 and the coil 15, so that the coil 15 has better stability when in use.

[0028] As a technical optimization solution of the utility model, a plurality of screw holes 8 are opened on the side of the mounting cover 2 near the edge, and the screw holes 8 pass through the sides of the mounting cover 2 and the mounting shell 1. The internal threads of the screw holes 8 are installed with fixing bolts 16; the mounting cover 2 is fixed to the mounting shell 1 by the fixing bolts 16 on its side, so that the staff can disassemble the mounting cover 2 by the fixing bolts 16 at any time and disassemble and repair the coil 15 at the edge.

[0029] As a technical optimization solution of the utility model, the protective tube 9 is located between the coil 15 and the inner wall of the mounting shell 1, a connecting block 4 is installed at one end of the outer wall of the mounting shell 1, and the two ends of the rotating plate 3 are respectively abutted against the inner walls on both sides of the mounting hole 11; when in use, the staff can connect the interior of the mounting shell 1 with the external antenna through the connecting block 4.

[0030] As a technical optimization solution of the utility model, the two ends of the coil 15 are electrically connected to the connecting plates 10 on the two mounting plates 6 respectively, and the connecting plates 10 are located on the sides of the connecting holes 17; when the staff connects the external connecting wire to the connecting plate 10, it can be electrically connected to the coil 15 through the connecting plate 10.

[0031] When the utility model is used, the staff can place the fixed column 14 with the coil 15 installed inside the installation shell 1, and the mounting plates 6 located at both ends of the fixed column 14 are respectively located at both ends of the inside of the installation shell 1, and the two ends of the mounting plate 6 are respectively abutted against the inner walls of the two sides of the installation shell 1. When in use, the installation shell 1 can play a good supporting role on the fixed column 14 and the coil 15 thereon through the mounting plate 6, so that the coil 15 has better stability when in use. When in use, the staff can install the installation cover 2 at both ends of the installation shell 1 through the fixing bolts 16, and the two installation covers 2 can seal and protect the two ends of the installation shell 1. At the same time, when in use, the limit blocks 7 located at both ends of the side of the installation plate 6 are inserted into the inside of the limit groove 18 located on the side of the installation cover 2, and the inner wall of the limit groove 18 can abut against the end of the limit block 7 away from the installation plate 6. When in use, the two installation covers 2 can clamp and fix the two installation plates 6 and the fixed column 14 through the limit blocks 7 to prevent the installation plate 6 and the coil 15 from moving inside the installation shell 1.

[0032] When the staff needs to fix the position of the installation shell 1, the staff can rotate the rotating plates 3 located on both sides of the bottom of the installation shell 1, so that the two rotating plates 3 are rotated to the side of the installation shell 1 away from the support rod 12. The staff can place the adjusting bolt 21 inside the sliding hole 20 on the rotating plate 3. At the same time, the staff can fix the rotating plate 3 at the specified position inside the microwave sensor through the adjusting bolt 21. When in use, the adjusting bolt 21 can fix the position of the installation shell 1 through the rotating plate 3. When in use, the staff inserts the external connection line into the connection hole 17 on the rubber plate 5 and connects it with the connection plate 10. When in use, the connection hole 17 can support the end of the connection line close to the connection plate 10 to prevent the end of the connection line close to the connection plate 10 from shaking during use, resulting in the loosening of the connection between the connection line and the connection plate 10. At the same time, the rubber plate 5 can better protect the surface of the connection line when in use, preventing the external connection line from rubbing against the inner wall edge of the connection hole 17, resulting in surface damage to the connection line.

[0033] When in use, the coil 15 located inside the mounting shell 1 can be connected to the outside through the two ends of the protective tube 9 and the mounting hole 11. When the coil 15 generates heat during use, the heat emitted by the coil 15 can be emitted through the two ends of the protective tube 9 to the position between the protective tube 9 and the inner wall of the mounting shell 1, and then continuously emitted to the outside through the mounting hole 11 again, which can achieve a good heat dissipation effect on the coil 15 during use and can provide a good protection for the coil 15. When the staff stores the mounting shell 1 and waits for use, the staff can rotate the rotating plate 3 to the inside of the mounting hole 11, and the block 13 at the top of the mounting hole 11 is inserted into the slot 19 on the rotating plate 3. When in use, the block 13 can fix the position of the rotating plate 3 through the slot 19, and prevent external dust from entering the inside of the mounting shell 1 through the mounting hole 11 when the mounting shell 1 is stored, which can provide a good protection for the coil 15.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A microwave sensor resonant structure, comprising a mounting shell (1), characterized in that: Both ends of the mounting shell (1) are installed with mounting plates (6), both ends of the mounting plates (6) are in contact with the inner wall of the mounting shell (1), the opposite surfaces of the two mounting plates (6) are installed with fixing columns (14), the outer walls of the fixing columns (14) are wound with a coil (15), both sides of the outer wall of the bottom end of the mounting shell (1) are provided with mounting holes (11) in the length direction, a support rod (12) is installed on the inner wall of the mounting hole (11), a rotating plate (3) is rotatably installed on the support rod (12), and sliding holes (20) are opened in the length direction at both ends of the side of the rotating plate (3) away from the support rod (12), and an adjusting bolt (21) is movably installed inside the sliding hole (20).

2. A microwave sensor resonant structure according to claim 1, characterized in that: The support rod (12) is mounted on the inner wall of the bottom end of the rotating plate (3); a slot (19) is provided at the top end of the rotating plate (3); a block (13) matching the slot (19) is installed at the inner top of the mounting hole (11); a protective tube (9) is installed on the opposite surfaces of the two mounting plates (6); and the coil (15) and the fixing column (14) are both located inside the protective tube (9).

3. A microwave sensor resonant structure according to claim 1, characterized in that: The mounting shell (1) is provided with mounting covers (2) at both ends, connecting plates (10) are provided at the middle ends of the two mounting plates (6) close to the mounting covers (2), and limiting blocks (7) are provided at both ends of the mounting plates (6) close to the connecting plates (10).

4. A microwave sensor resonant structure according to claim 3, characterized in that: The mounting cover (2) is provided with limiting grooves (18) at both ends of a side close to the mounting shell (1); an end of the limiting block (7) away from the mounting plate (6) is located inside the limiting groove (18); a rubber plate (5) is installed at the middle end of a side of the mounting cover (2) away from the mounting shell (1); a connecting hole (17) is provided on a side of the rubber plate (5); and the connecting hole (17) passes through the rubber plate (5) and the mounting cover (2).

5. A microwave sensor resonant structure according to claim 3, characterized in that: A plurality of screw holes (8) are provided on the side of the mounting cover (2) near the edge. The screw holes (8) penetrate the side of the mounting cover (2) and the mounting shell (1). Fixing bolts (16) are installed on the internal threads of the screw holes (8).

6. A microwave sensor resonant structure according to claim 2, characterized in that: The protective tube (9) is located between the coil (15) and the inner wall of the mounting shell (1), a connecting block (4) is installed at one end of the outer wall of the mounting shell (1), and the two ends of the rotating plate (3) are respectively in contact with the inner walls of both sides of the mounting hole (11).

7. A microwave sensor resonant structure according to claim 4, characterized in that: The two ends of the coil (15) are electrically connected to the connecting plates (10) on the two mounting plates (6), respectively, and the connecting plates (10) are located on the side of the connecting hole (17).

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