CN211829166U - Wireless microwave rectification antenna - Google Patents

Abstract

The utility model discloses a wireless microwave rectification antenna, including the medium substrate, the edge of via hole is provided with the microstrip feeder, microstrip feeder electric connection is in input filter, input filter electric connection is in matching circuit, matching circuit electric connection is in rectifier diode, output filter electric connection has electric capacity and load respectively; the heat absorption plate is fixedly provided with a plurality of heat conduction columns, one ends of the heat conduction columns, far away from the heat absorption plate, are fixedly provided with a plurality of side heat conduction plates, and the side heat conduction plates are embedded in the water absorption plate. The utility model provides a wireless microwave rectenna has good cooling heat dissipation and water-proof effects, and absorptive moisture can accelerate the heat dissipation, and absorptive heat can promote the drying of water absorption plate again, and the two complements each other, and the harm becomes the benefit, is worth very much promoting.

Description

Wireless microwave rectification antenna

Technical Field

The utility model relates to the technical field of antennas, specifically be a wireless microwave rectenna.

Background

In the prior art, a multilayer microstrip rectenna with application number "201910219538.4" includes an ultrathin layer, a first dielectric plate, a second dielectric plate, a third dielectric plate, a metal plate and a heat-conducting silica gel layer which are connected in sequence from top to bottom; a through hole is formed in the geometric center of the first dielectric plate, the second dielectric plate and the third dielectric plate; the upper surface of the first dielectric plate is attached with a ring-shaped radiation patch, the lower surface of the first dielectric plate, which is close to the via hole, is provided with a feeder line coupled with the radiation patch, and a compact microstrip resonance unit is embedded in the feeder line; the feeder line is electrically connected with the input filter and the matching circuit in sequence; the matching circuit is electrically connected with the two rectifier diodes respectively; an output filter electrically connected with the rectifier diode is arranged on the upper surface of the third dielectric plate, and a load electrically connected with the output filter is arranged on the lower surface of the third dielectric plate; the second dielectric plate is a common ground of the circuits on the first dielectric plate and the third dielectric plate; the contact part of the lower surface of the metal plate and the heat-conducting silicon adhesive layer is provided with a plurality of corrugated teeth.

However, the method still has the obvious defects in the using process: 1. the device has a single function and does not have a heat dissipation function, so that heat generated by circuits and the like on the medium substrate is difficult to dissipate quickly, a heat accumulation phenomenon exists, and the service life of the rectifying antenna is further influenced; 2. the device does not have the moisture absorption function, the rectifying antenna can be damaged by dampness due to overlarge humidity in the air in different use environments, and the device is lack of a necessary water absorption structure, so that the application range of the device is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wireless microwave rectenna to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a wireless microwave rectification antenna comprises a dielectric substrate, wherein a via hole is formed in the dielectric substrate, a microstrip feeder line is arranged at the edge of the via hole and is electrically connected with an input filter, the input filter is electrically connected with a matching circuit, the matching circuit is electrically connected with a rectifier diode, the rectifier diode is electrically connected with an output filter, and the output filter is respectively electrically connected with a capacitor and a load;

the lower surface laminating of medium substrate sets up on the metal sheet, the through-hole has been seted up on the metal sheet, set up the operation chamber in the metal sheet, be provided with the absorber plate in the operation chamber, the lower surface of establishing at the medium substrate is pasted to the absorber plate, the fixed a plurality of heat conduction posts that are provided with on the absorber plate, the fixed a plurality of side heat-conducting plates that are provided with of one end that the absorber plate was kept away from to the heat conduction post, the side heat-conducting plate is buried underground in the board that absorbs water, the board that absorbs water is fixed to be set up in the operation chamber, the louvre has been seted up on the metal sheet.

Preferably, a microstrip resonance unit is embedded in the microstrip feed line.

Preferably, the through holes and the through holes have the same diameter and the corresponding positions.

Preferably, the shape of the water suction plate is the same as that of the operation cavity, and the water suction plate and the operation cavity are equal.

Preferably, the front one third to one fifth section of the heat conducting column close to one side of the side heat conducting plate is embedded in the water absorption plate.

Preferably, waterproof layers are coated on the surfaces of the heat conduction columns and the surfaces of the side heat conduction plates.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the device is provided with the heat absorbing plate and the operation cavity, and can conduct heat generated by devices such as circuits on the medium substrate to the heat absorbing plate in time, so that the heat can be dissipated quickly, and heat accumulation is avoided;

2. the device is provided with the heat dissipation holes and the water absorption plate, and the water absorption plate can absorb moisture in the air while ventilating and dissipating heat, so that the moisture is prevented from contacting the heat absorption plate, the heat absorption plate can be prevented from being corroded by the moisture, and the potential safety hazard that the electrical element is damaged due to overlarge moisture is also avoided;

3. the side heat-conducting plate in this device and the preceding third to the fifth section of heat conduction post bury underground in the board that absorbs water, both can be used for the inside of rapid draing board that absorbs water with the heat production, keep the high water absorption rate of board that absorbs water, because the inside absorption of board that absorbs water has moisture again, its cooling efficiency is far above air medium to also accelerated cooling efficiency, a arrow double-row carving becomes the harm and makes good, promotes the improvement each other.

The utility model provides a wireless microwave rectenna has good cooling heat dissipation and water-proof effects, and absorptive moisture can accelerate the heat dissipation, and absorptive heat can promote the drying of water absorption plate again, and the two complements each other, and the harm becomes the benefit, is worth very much promoting.

Drawings

FIG. 1 is a schematic view of a structure on a dielectric substrate according to the present invention;

fig. 2 is a schematic view of the installation position of the metal plate and its side view section.

In the figure: 1. a dielectric substrate; 2. a via hole; 3. a microstrip feed line; 4. a microstrip resonance unit; 5. an input filter; 6. a matching circuit; 7. a rectifier diode; 8. an output filter; 9. a capacitor; 10. a load; 11. a metal plate; 12. a through hole; 13. an operating chamber; 14. a heat absorbing plate; 15. a heat-conducting column; 16. a side heat-conducting plate; 17. a water absorption plate; 18. heat dissipation holes; 19. and (5) filtering by using a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

a wireless microwave rectification antenna comprises a dielectric substrate 1, a via hole 2 is formed in the dielectric substrate 1, a microstrip feeder line 3 is arranged at the edge of the via hole 2, the microstrip feeder line 3 is electrically connected to an input filter 5, the input filter 5 is electrically connected to a matching circuit 6, the matching circuit 6 is electrically connected to a rectifier diode 7, the rectifier diode 7 is electrically connected to an output filter 8, and the output filter 8 is respectively electrically connected with a capacitor 9 and a load 10.

The lower surface of the medium substrate 1 is attached to the metal plate 11, the metal plate 11 is provided with a through hole 12, the metal plate 11 is provided with an operation cavity 13, the operation cavity 13 is internally provided with a heat absorbing plate 14, the heat absorbing plate 14 is attached to the lower surface of the medium substrate 1 and is used for absorbing heat generated by devices such as circuits and the like on the medium substrate 1 and dissipating heat rapidly to avoid elements damaged by accumulated heat, the heat absorbing plate 14 is fixedly provided with a plurality of heat conducting columns 15, the heat conducting columns 15 can conduct heat on the heat absorbing plate 14, one end of the heat conducting columns 15 far away from the heat absorbing plate 14 is fixedly provided with a plurality of side heat conducting plates 16, the side heat conducting plates 16 are embedded in a water absorbing plate 17, the side heat conducting plates 16 can conduct heat on the heat conducting columns 15, the water absorbing plate 17 is fixedly arranged in the operation cavity 13, high-temperature heat on the heat dissipating holes 16 can promote drying of the, the cold and hot gas exchange is convenient to carry out, a filter screen 19 is arranged in the heat dissipation hole 18, and the filter screen 19 is used for preventing impurities such as dust in the outside air from directly entering the operation cavity 13.

Preferably, the microstrip feed line 3 is embedded with a microstrip resonant unit 4.

Preferably, the through hole 12 and the via hole 2 have the same diameter and the corresponding positions.

Preferably, the water absorption plate 17 and the operation cavity 13 have the same shape and size, so that the water absorption plate 17 can completely block the transverse section of the operation cavity 13, and can prevent moisture in the air from directly contacting the heat absorption plate 14 and the heat absorption plate 14 from being rusted.

Preferably, the front third to fifth sections of the heat conducting columns 15 near the side heat conducting plates 16 are embedded in the water absorbing plate 17, which is advantageous in that firstly, the high-temperature heat on the heat conducting columns 15 can promote the drying of the water absorbing plate 17, so that the water absorbing plate 17 keeps a better water absorbing state, and secondly, the heat dissipating efficiency of the water absorbing plate 17 is far better than that of an air medium due to the possibility of containing a small amount of absorbed moisture, so that the heat dissipation is accelerated, and the two sections are mutually promoted and supplemented.

Preferably, the surfaces of the heat-conducting columns 15 and the side heat-conducting plates 16 are coated with waterproof layers, so that the surfaces of part of the heat-conducting columns 15 and the whole side heat-conducting plates 16 embedded in the water absorption plate 17 can be prevented from being rusted and oxidized due to water immersion.

The working principle is as follows: in the use process of the wireless microwave rectification antenna, heat generated by devices such as a circuit on a medium substrate 1 can be quickly conducted to a heat absorbing plate 14, the heat absorbing plate 14 conducts the heat to a heat conducting column 15, the heat conducting column 15 conducts the heat to a side heat conducting plate 16 again, the first third to fifth sections of the heat conducting column 15 close to one side of the side heat conducting plate 16 are embedded in a water absorbing plate 17, and the side heat conducting plate 16 is completely embedded in the water absorbing plate 17, on one hand, the heat conducting column 15 outside the water absorbing plate 17 can radiate heat through an air medium, and finally, cold and hot air exchange is carried out through a heat radiating hole 18, on the other hand, part of the heat conducting column 15 and the side heat conducting plate 16 embedded in the water absorbing plate 17 can radiate heat through moisture in the water absorbing plate 17, the heat radiating efficiency is higher compared with that of the air medium, and simultaneously, the drying of the water absorbing plate 17 can be promoted, the harm is changed into the benefit, and the harm and the benefit complement each other.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A wireless microwave rectenna comprises a dielectric substrate (1), and is characterized in that: the dielectric substrate (1) is provided with a via hole (2), a microstrip feeder (3) is arranged at the edge of the via hole (2), the microstrip feeder (3) is electrically connected to an input filter (5), the input filter (5) is electrically connected to a matching circuit (6), the matching circuit (6) is electrically connected to a rectifier diode (7), the rectifier diode (7) is electrically connected to an output filter (8), and the output filter (8) is respectively and electrically connected with a capacitor (9) and a load (10);

the medium substrate (1) lower surface laminating sets up on metal sheet (11), through-hole (12) have been seted up on metal sheet (11), operation chamber (13) have been seted up in metal sheet (11), be provided with absorber plate (14) in operation chamber (13), absorber plate (14) paste and establish the lower surface at medium substrate (1), fixed a plurality of heat conduction post (15) that are provided with on absorber plate (14), the one end that absorber plate (14) were kept away from in heat conduction post (15) is fixed and is provided with a plurality of side heat-conducting plates (16), side heat-conducting plate (16) are buried underground in board (17) absorb water, board (17) absorb water are fixed to be set up in operation chamber (13), louvre (18) have been seted up on metal sheet (11), be provided with filter screen (19) in louvre (18).

2. A wireless microwave rectenna as in claim 1, wherein: and a microstrip resonance unit (4) is embedded in the microstrip feeder line (3).

3. A wireless microwave rectenna as in claim 1, wherein: the through holes (12) and the through holes (2) are equal in diameter and corresponding in position.

4. A wireless microwave rectenna as in claim 1, wherein: the water suction plate (17) and the operation cavity (13) are the same in shape and size.

5. A wireless microwave rectenna as in claim 1, wherein: the front one third to one fifth section of the heat conducting column (15) close to one side of the side heat conducting plate (16) is embedded in the water absorption plate (17).

6. A wireless microwave rectenna as in claim 1, wherein: waterproof layers are coated on the surfaces of the heat conduction columns (15) and the side heat conduction plates (16).

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