CN215449571U

CN215449571U - Microwave inductor with adjustable beam angle

Info

Publication number: CN215449571U
Application number: CN202121217104.XU
Authority: CN
Inventors: 邹高迪; 秦祥龙
Original assignee: Shenzhen Merrytek Technology Co Ltd
Current assignee: Shenzhen Merrytek Technology Co Ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2022-01-07
Anticipated expiration: 2031-06-01

Abstract

The utility model relates to a microwave inductor with an adjustable beam angle, which comprises a shell, a microwave induction module and an adjusting medium, wherein the shell is provided with a plurality of microwave induction modules; the shell comprises a shell main body, and the microwave induction module is arranged in the shell; the adjusting medium is adjustably matched with the shell main body to change the relative position of the adjusting medium and the microwave induction module, so that the angle of the electromagnetic wave beam radiated by the microwave induction module can be adjusted. The adjusting medium can be movably connected with the shell main body along the shell main body to change the relative position of the adjusting medium and the microwave induction module, particularly a radiation source or a receiving and transmitting antenna of the microwave induction module, so that the beam angle can be adjusted, and the adjusting mode is quick; the actual detection space of the microwave induction module can be matched with the corresponding target detection space, the detection accuracy and sensitivity can be improved through adjustment, the interference problem is reduced, the whole structure is convenient to assemble and install, and the microwave induction module is waterproof and dustproof.

Description

Microwave inductor with adjustable beam angle

Technical Field

The utility model relates to the field of microwaves, in particular to a microwave inductor with an adjustable beam angle.

Background

The microwave detection technology is used as a person and an object, an important pivot connected between the object and the object has unique advantages in behavior detection and existence detection technology, and the microwave detection technology can generate a Doppler intermediate frequency signal corresponding to the frequency difference between a microwave beam and a reflected echo by the corresponding object by transmitting the microwave beam and receiving the reflected echo under the condition of not invading the privacy of the person and by a frequency mixing detection mode based on the Doppler effect principle in the follow-up process, so that the movement of the corresponding object is fed back by the Doppler intermediate frequency signal, and when the microwave detection technology is applied to the detection of the movement of the person, the detection of the breathing and the heartbeat movement of the person is included, the intelligent interconnection between the person and the object can be realized, and the application prospect is wide.

However, since there is no effective control means for electromagnetic radiation, i.e. shaping means for gradient boundary of corresponding microwave beam, which is mainly reflected in the lack of adjusting means for beam angle of microwave beam, the actual detection space of the existing microwave detection module is difficult to control, and the actual detection space of the existing microwave detection module is not matched with the corresponding target detection space.

For example, CN 201921867642-a stand-alone microwave inductor with dust and moisture prevention-utility model discloses one of the existing microwave inductors. The beam angle of the existing microwave sensor or the gradient boundary of the beam cannot be adjusted to match the actual detection space with the corresponding target detection space.

In addition, the beam angle of the existing microwave inductor is basically fixed, and if the target detection area is small and the beam angle is too large, the detection is interfered by the movement of a human body outside the target detection area or the movement of other objects; in addition, the beam angle is too large, and due to the penetrability of microwaves, glass, thin walls or other building materials are easily penetrated, so that the detection is interfered by the external area, and finally, the controlled equipment, electric appliances and the like are in error operation.

In addition, the microwave inductor can be regarded as an electromagnetic wave energy radiation device, the beam angle is too large, so that excessive energy is radiated outside a target detection area, the energy radiated in the target detection area is inevitably reduced, and the gain in the maximum radiation direction is inevitably reduced. In general, the higher the gain in the direction of maximum radiation, the better the accuracy and sensitivity of the detection. That is to say, when the beam angle is too large, or the actual detection space of the microwave detection module is much larger than the corresponding target detection space, the problems of low detection accuracy and sensitivity are also caused.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a microwave inductor with adjustable beam angle, which overcomes the above-mentioned drawbacks of the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: constructing a microwave inductor with an adjustable beam angle, which comprises a shell, a microwave induction module and an adjusting medium;

the shell comprises a shell main body, and the microwave induction module is arranged in the shell;

the adjusting medium is matched with the shell main body in a position adjustable mode so as to change the relative position of the adjusting medium and the microwave induction module, and the adjustment of the beam angle of the electromagnetic wave radiated by the microwave induction module is achieved.

Preferably, the conditioning medium is annular.

Preferably, the conditioning medium is threadedly engaged with the housing body.

Preferably, the adjusting device further comprises an annular sleeve, wherein the adjusting medium is mounted on the annular sleeve, and the annular sleeve is matched with the shell main body in a position-adjustable mode.

Preferably, the annular sleeve is in threaded engagement with the housing body; or the like, or, alternatively,

the annular sleeve is in sliding fit with the shell main body, and a first buckle is arranged on the annular sleeve to be clamped at the position after sliding.

Preferably, the annular sleeve is provided with an annular clamping groove for mounting the adjusting medium.

Preferably, the conditioning media is snapped into the ring slot.

Preferably, the inner wall surface of the annular clamping groove is provided with a second buckle for clamping the adjusting medium.

Preferably, the housing main body is provided with an identification indicating position for setting the adjusting position of the adjusting medium.

Preferably, the adjusting medium is adjustable between a first position and a second position, when the adjusting medium is at the first position, the upper end of the adjusting medium close to the microwave induction module is not lower than the radiation surface on the microwave induction module, and when the adjusting medium is at the second position, the lower end of the adjusting medium is not higher than the radiation surface on the microwave induction module.

Preferably, the microwave induction module comprises a radiation source or a transceiver antenna.

Preferably, the microwave induction module further comprises a wireless transceiving device for transceiving signals.

The wireless transceiver comprises at least one of a light sensor, an infrared receiver, Zigbee, Bluetooth, WIFI and LORA.

Preferably, the conditioning medium is a conductive metal material.

Preferably, the conditioning medium is a dielectric substance.

Preferably, the conditioning media is a ceramic ring; or the like, or, alternatively,

the adjusting medium is a dielectric substance with a relative dielectric constant larger than or equal to that of the adjusting medium.

Preferably, the housing further comprises a main control box and a rear cover, the microwave induction module is installed in the main control box, and the rear cover is covered on the main control box;

the wire pressing device is characterized in that a spring support, a spring clamp and a wire pressing seat are arranged on the rear cover, the spring clamp is rotatably installed on the spring support and is clamped to a fixed position through the elasticity of a torsion spring, and the wire pressing seat is installed on the spring support so as to press wires.

The microwave inductor with the adjustable beam angle has the following beneficial effects: the microwave inductor with the adjustable beam angle is movably connected with the shell main body through an adjusting medium, and the adjusting medium can be movably adjusted along the shell main body to change the relative position of the adjusting medium and a microwave induction module, particularly a radiation source or a receiving and transmitting antenna of the microwave induction module, so that the beam angle can be adjusted, the adjustment of the beam angle is realized, and the adjusting mode is quick; the actual detection space of the microwave induction module can be matched with the corresponding target detection space, the detection accuracy and sensitivity can be improved through adjustment, the interference problem is reduced, the whole structure is convenient to assemble and install, and the microwave induction module is waterproof and dustproof.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an assembled microwave inductor with adjustable beam angle according to an embodiment of the present invention;

FIG. 2 is an exploded view of the adjustable beam angle microwave inductor of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the conditioning medium of the tunable beam angle microwave inductor of FIG. 1 in a first position;

FIG. 4 is a schematic cross-sectional view of the conditioning medium of the adjustable beam angle microwave inductor of FIG. 1 in a second position;

FIG. 5 is a schematic view of the adjustable beam angle microwave inductor of FIG. 1 with the spring fingers drawn through the fixture;

fig. 6 is a schematic view of the adjustable beam angle microwave inductor of fig. 5 after being mounted to a fixture.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, a microwave inductor with an adjustable beam angle in a preferred embodiment of the present invention includes a casing 1, a microwave induction module 2, and an adjusting medium 3, further, the microwave induction module 2 includes a radiation source or a wireless transceiver device such as a transceiver antenna 21, the casing 1 includes a casing main body 11, and the microwave induction module 2 is disposed in the casing 1.

The adjusting medium 3 is adjustably matched with the shell main body 11 to change the relative position with the microwave induction module 2, so that the adjustment of the beam angle of the electromagnetic wave radiated by the microwave induction module 2 is realized.

The microwave inductor with the adjustable beam angle is movably connected with the shell main body 11 through the adjusting medium 3, and the adjusting medium 3 can be movably adjusted along the shell main body 11 to change the relative position with the microwave induction module 2, particularly the radiation source or the receiving and transmitting antenna 21 of the microwave induction module 2, so that the adjustment of the beam angle is realized, and the adjusting mode is quick; the actual detection space of the microwave induction module 2 can be matched with the corresponding target detection space, the detection accuracy and sensitivity can be improved through adjustment, the interference problem is reduced, the whole structure is convenient to assemble and install, and the device is waterproof and dustproof.

The beam angle is defined as the angle from the extension of the central axis of the inductor to the perpendicular of the inductor/radiation source surface, and out to the point where the energy intensity is reduced by half (-3 dB). The beam angle may in turn be understood as a gradient boundary, i.e. a boundary where the radiated energy of the microwave beam is attenuated to a certain extent, as defined by the boundary where the energy intensity is reduced by half (-3dB), the gradient boundary being a defined boundary.

The adjusting medium 3 is annular, and preferably, the adjusting medium 3 is in threaded connection with the shell main body 11, and can be conveniently and quickly adjusted through rotation.

The adjusting medium 3 may be made of different materials according to the purpose of adjusting the beam angle of the electromagnetic wave.

The adjusting medium 3 may be made of a conductive metal material, for example, to shield a beam in a certain area direction or to change radiation efficiency in an electromagnetic coupling resonance manner.

The adjusting medium 3 may be a dielectric substance for adjusting the beam angle of the electromagnetic wave. In particular, the dielectric may be made of materials having different dielectric constants. Preferably, the adjusting medium 3 is a ceramic ring, or the adjusting medium 3 is a dielectric substance having a relative dielectric constant of 5 or more.

Further, in some embodiments, the adjusting device further comprises an annular sleeve 4, the adjusting medium 3 is partially or completely arranged on the annular sleeve 4, and the annular sleeve 4 is matched with the shell body 11 in a position-adjustable mode to achieve position adjustment of the adjusting medium 3.

In this embodiment, the housing body 11 is provided with external threads, the annular sleeve 4 is screwed with the housing body 11, and the adjusting medium 3 can be movably adjusted along the axial direction of the housing body 11 by rotating the annular sleeve 4, so as to change the relative position with the microwave induction module 2, especially with the radiation source or the transceiver antenna 21.

The annular sleeve 4 is provided with an annular clamping groove 41 for installing the adjusting medium 3, and preferably, the annular clamping groove and the adjusting medium are in clearance fit, so that the adjusting medium 3 can be conveniently installed. Preferably, the conditioning media 3 is snapped into the ring slot 41 for more stable positioning. Further, a second snap for engaging the adjustment medium 3 is provided on an inner wall surface of the ring-shaped groove 41. In other embodiments, a bayonet may be provided on the outside of the ring slot 41 to fix the conditioning medium 3.

In other embodiments, the annular sleeve 4 may also be slidably engaged with the housing body 11, and the annular sleeve 4 is provided with a first buckle to be fastened to the slid position, so as to position and fix the height of each adjustment.

The shell main body 11 is provided with an identification indicating position 12 for setting the adjusting position of the adjusting medium 3, and the identification indicating position 12 can be a recognizable identification or a numerical value. The annular sleeve 4 is provided with an identification arrow 42, and the arrow 42 can be aligned with the identification indicator 12 to facilitate accurate adjustment of the height of the medium 3.

Referring to fig. 3 and 4, the adjusting medium 3 can be adjusted between a first position a and a second position B, and when the adjusting medium 3 is at the first position a, the upper end of the adjusting medium 3 close to the microwave sensing module 2 is not lower than the radiation surface of the microwave sensing module 2. Thus, when the annular sleeve 4 is rotated to the lowest part of the housing body 11, the highest surface of the adjusting medium 3 can be horizontally aligned with the radiation surface of the radiation source or the transceiver antenna 21 on the microwave induction module 2 or be higher than the radiation surface of the radiation source or the transceiver antenna 21 on the microwave induction module 2, so that the narrowing effect of the adjusting medium 3 on the beam angle is the best, and the beam angle can be adjusted to the minimum.

When the adjusting medium 3 is at the second position B, the lower end of the adjusting medium 3 is not higher than the radiation surface of the microwave induction module 2. When the annular sleeve 4 rotates to the top of the housing main body 11, the lower end of the adjusting medium 3 can be horizontally aligned with the radiation surface of the radiation source or the transceiver antenna 21 on the microwave induction module 2 or lower than the radiation surface of the radiation source or the transceiver antenna 21 on the microwave induction module 2, the narrowing effect of the adjusting medium 3 on the beam angle is weakened, and the beam angle becomes maximum.

The microwave induction module 2 further comprises a wireless transceiver device for transmitting and receiving signals, an LED indicator light, related electronic elements and the like, wherein the wireless transceiver device comprises at least one of a light sensor, an infrared receiver, Zigbee, Bluetooth, WIFI and LORA. The selection of which sensor units, or those comprising those electronic components, can be configured according to the needs of the actual control. In addition, the microwave induction module 2 further includes a power supply unit and other circuit units. The specific circuit structure portions may be implemented according to the prior art.

Referring to fig. 1 and 2, the housing 1 further includes a main control box 13, a front cover 14, and a rear cover 15, the front cover 14 is disposed at the lower end of the housing body 11, and the main control box 13 is mounted at the upper end of the housing body 11.

The main control box 13 has a cavity for accommodating the microwave induction module 2, the microwave induction module 2 is installed in the main control box 13, the cavity of the main control box 13 is arranged in the main control box 13, and the microwave induction module 2 is fixed with the main control box 13 and the upper end of the shell main body 11 through fixing screws.

The one side of main control box 13 towards shell main part 11 is the through-hole, and microwave response module 2 embeds main control box 13 cavity simultaneously, and radiation source or transceiver antenna 21 on the microwave response module 2 embeds shell main part 11, and shell main part 11 has the inside of screw thread section especially. When the annular sleeve 4 rotates to the bottommost part, the highest surface of the adjusting medium 3 can be horizontally aligned with a radiation source on the microwave induction module 2 or a radiation surface of the transceiver antenna 21, so that the narrowing effect of the adjusting medium 3 on the beam angle is the best, and the beam angle can be adjusted to the minimum.

The rear cover 15 covers the upper end of the main control box 13, and covers the upper end of the main control box 13.

Furthermore, the rear cover 15 is provided with a spring support 16, a spring clamp 17 and a line pressing seat 18, and the spring clamp 17 is rotatably mounted on the spring support 16.

As shown in fig. 5 and 6, when the microwave sensor is mounted at the fixed position 5, the spring clip 17 is folded to pass through the hole at the fixed position 5, the housing main body 11 also passes through the fixed position 5, the upper end of the housing main body 11 is clamped to the upper side of the fixed position 5 by using the elasticity of the torsion spring of the spring clip 17 to realize position fixing, and the surface cover 14 at the lower end of the housing main body 11 abuts against the lower side of the fixed position 5 to improve the sealing performance. The wire crimping seats 18 are mounted on the spring carriage 16 to crimp the wire.

It is to be understood that the above-described respective technical features may be used in any combination without limitation.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The microwave inductor with the adjustable beam angle is characterized by comprising a shell (1), a microwave induction module (2) and an adjusting medium (3);

the shell (1) comprises a shell main body (11), and the microwave induction module (2) is arranged in the shell (1);

the adjusting medium (3) is matched with the shell main body (11) in a position-adjustable manner so as to change the relative position of the adjusting medium and the microwave induction module (2), and the adjustment of the beam angle of the electromagnetic wave radiated by the microwave induction module (2) is realized.

2. The adjustable beam angle microwave inductor according to claim 1, characterized in that the conditioning medium (3) is ring-shaped.

3. The adjustable beam angle microwave inductor according to claim 2, characterized in that the conditioning medium (3) is screwed with the housing body (11).

4. The adjustable beam angle microwave inductor according to claim 2, characterized in that it further comprises an annular sleeve (4), the adjusting medium (3) being mounted on the annular sleeve (4), the annular sleeve (4) being position-adjustably engaged with the housing body (11).

5. The adjustable beam angle microwave inductor according to claim 4, characterized in that the annular sleeve (4) is screwed with the housing body (11); or the like, or, alternatively,

the annular sleeve (4) is in sliding fit with the shell main body (11), and a first buckle is arranged on the annular sleeve (4) to be clamped at the position after sliding.

6. The microwave inductor with the adjustable beam angle according to claim 4, wherein the annular sleeve (4) is provided with an annular clamping groove (41) for mounting the adjusting medium (3).

7. The adjustable beam angle microwave inductor according to claim 6, characterized in that the conditioning medium (3) is snapped into the ring slot (41).

8. The microwave inductor with adjustable beam angle according to claim 7, wherein the inner wall surface of the ring-shaped slot (41) is provided with a second fastener for fastening the adjusting medium (3).

9. The adjustable beam angle microwave inductor according to any one of claims 1 to 8, characterized in that the housing main body (11) is provided with an indication mark (12) for setting the adjusting position of the adjusting medium (3).

10. The adjustable beam angle microwave inductor according to any one of claims 1 to 8, characterized in that the adjusting medium (3) is adjustable between a first position (A) and a second position (B), the upper end of the adjusting medium (3) is not lower than the radiation surface of the microwave induction module (2) when the adjusting medium (3) is in the first position (A), and the lower end of the adjusting medium (3) is not higher than the radiation surface of the microwave induction module (2) when the adjusting medium (3) is in the second position (B).

11. The adjustable beam angle microwave inductor according to any of claims 1 to 8, characterized in that the microwave induction module (2) comprises a radiation source or a transceiver antenna (21).

12. The adjustable beamangle microwave inductor of claim 11, wherein the microwave induction module (2) further comprises a wireless transceiving means for transceiving signals.

13. The adjustable beamangle microwave inductor of claim 12, wherein the wireless transceiver comprises at least one of a light sensor, an infrared receiver, Zigbee, bluetooth, WIFI, and LORA.

14. The adjustable beam angle microwave inductor according to any of claims 1 to 8, characterized in that the conditioning medium (3) is a conductive metallic material.

15. The adjustable beam angle microwave inductor according to any of claims 1 to 8, characterized in that the conditioning medium (3) is a dielectric substance.

16. The adjustable beam angle microwave inductor according to any of claims 1 to 8, characterized in that the conditioning medium (3) is a ceramic ring; or the like, or, alternatively,

the adjusting medium (3) is a dielectric substance with a relative dielectric constant of more than or equal to 5.

17. The adjustable beam angle microwave inductor according to any of the claims 1 to 8, characterized in that the housing (1) further comprises a main control box (13) and a back cover (15), the microwave induction module (2) is installed in the main control box (13), the back cover (15) is covered on the main control box (13);

the wire pressing device is characterized in that a spring support (16), a spring clamp (17) and a wire pressing seat (18) are arranged on the rear cover (15), the spring clamp (17) is rotatably installed on the spring support (16) and is clamped to a fixed position (5) through elasticity of a torsion spring, and the wire pressing seat (18) is installed on the spring support (16) so as to press wires.