Low-power wireless self-powered gas sensor based on energy recovery

Abstract

The present invention provides a low-power wireless self-powered gas sensor based on energy recovery, and relates to the technical field of gas sensors. The gas sensor comprises a main box body, wherein the upper surface of the main box body is respectively provided with a plurality of first mounting cavities, a second mounting cavity and a third mounting cavity, wherein the first mounting cavity is provided with a plurality of first ventilation holes at one end away from the center of the main box body, the second mounting cavity is provided with a plurality of second ventilation holes at the first end away from the center of the main box body, the third mounting cavity is provided with a third ventilation hole on one side, the interior of the second mounting cavity is respectively fixedly connected with a plurality of air guide plates and wind shield plates, and the bottom surface of the third mounting cavity is fixedly connected with a first mounting box. The present invention provides a low-power wireless self-powered gas sensor based on energy recovery, wherein the gas sensor is rational in overall design, simple and compact in structure, and has good detection efficiency, high detection accuracy and strong practical performance.

Description

Technical Field

[0001] The present invention relates to the technical field of gas sensors, in particular to a low-power wireless self-powered gas sensor based on energy recovery. Background Art

[0002] With the rapid development of my country's economy, the development of industrialization is also becoming more and more rapid. At the same time, in the process of rapid industrial development, atmospheric pollution is becoming more and more severe. Atmospheric pollution will bring certain harm to people's lives and health. The real-time monitoring of the gas environment is also receiving more and more attention. At present, gas sensors are mainly used to monitor the content of various gas components in the air, so that people can grasp and understand the air quality in time, which has brought great convenience to people's lives and industrial production.

[0003] At present, most gas sensors are divided into wired gas sensors and wireless gas sensors. However, traditional wired gas sensors have low flexibility and poor practical performance. At the same time, the subsequent maintenance work is relatively troublesome, and there are wiring difficulties in some working environments. However, most wireless gas sensors are powered by external power supplies, which requires staff to replace their batteries regularly. In the process of using batches of wireless gas sensors, it will bring inconvenience to the staff to regularly inspect and replace batteries. At the same time, the batteries after use are not easy to handle and are prone to cause certain pollution to the environment. Therefore, technical improvements are urgently needed. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a low-power wireless self-powered gas sensor based on energy recovery, which solves the problem that traditional wired gas sensors are too dependent on post-maintenance by staff, solves the problem that traditional wireless gas sensors require staff to regularly replace batteries in batches, and solves the problems that traditional gas sensors have low detection efficiency, are not convenient for simultaneous analysis of the same or different gas components, and have too low detection accuracy.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a low-power wireless self-powered gas sensor based on energy recovery, comprising a main box body, wherein the upper surface of the main box body is respectively provided with a plurality of first installation cavities, a second installation cavity and a third installation cavity, wherein the first installation cavity is provided with a plurality of first ventilation holes at one end away from the center of the main box body, the second installation cavity is provided with a plurality of second ventilation holes at the first end away from the center of the main box body, the third installation cavity is provided with a third ventilation hole at one side, and the interior of the second installation cavity is respectively fixedly connected with a plurality of air guide plates and wind shielding plates;

[0008] The bottom surface of the third mounting cavity is fixedly connected to a first mounting box, a battery is fixedly connected to the bottom surface inside the first mounting box, a second mounting box is fixedly connected to the middle of the upper surface of the first mounting box, a first metal circular plate is fixedly connected to the bottom surface inside the second mounting box, a plurality of metal columns are fixedly connected to the edge of the upper surface of the first metal circular plate, a plurality of copper coils are wound around the outer wall of the metal column, a connecting rod is fixedly connected to the middle of the upper surface of the first metal circular plate, a first bearing is fixedly connected to the outer wall of the upper end of the connecting rod, a second metal circular plate is fixedly connected to the outer wall of the first bearing, a plurality of strong magnets are fixedly connected to the edge of the lower surface of the second metal circular plate, a mounting frame is fixedly connected to the middle of the upper surface of the second metal circular plate, a rotating rod is fixedly connected to the upper surface of the mounting frame, and four fan blades are fixedly connected to the outer wall of the rotating rod;

[0009] A base is provided at the lower end of the main box body, a filter is fixedly connected to the bottom surface inside the base, a plurality of chips are fixedly connected to the edges of the upper part of the filter, the upper ends of the chips are fixedly connected to sensing heads, the upper ends of the sensing heads penetrate the base and the main box body to the inside of the first installation cavity, the lower ends of the chips are fixedly connected to sensor pins, the lower ends of the sensor pins penetrate the base to the outside of the base, and the middle part of the upper surface of the filter is fixedly connected to a signal transmission module;

[0010] Through the above technical scheme, the wind that has entered the first installation cavity and has been detected can be allowed to enter the second installation cavity through the second ventilation hole. At this time, under the action of multiple air guide plates, the flow direction of the wind can be changed without affecting the ventilation routes of the multiple second ventilation holes. At the same time, under the action of the wind shield, the flowing wind can enter the third installation cavity through the third ventilation hole and blow the fan blades. At this time, the fan blades will drive the rotating rod to rotate, so that the second metal circular plate rotates under the influence of wind speed. At this time, due to the electromagnetic induction effect, electricity is generated under the action of strong magnets, metal columns and copper coils, thereby achieving the purpose of converting the mechanical energy generated by the rotation of the rotating rod and the fan blades into electrical energy. At the same time, the generated electricity will be stored inside the battery. At the same time, the battery can provide real-time power supply for the detection element of the gas sensor, thereby achieving the purpose of autonomous power supply without the need for an external power supply.

[0011] Preferably, a box cover is provided at the upper end of the main box body, a third bearing is fixedly connected to the middle of the lower surface of the box cover, a clamping column is fixedly connected to the inner wall of the third bearing, and a clamping block is fixedly connected to the upper end of the rotating rod;

[0012] Through the above technical solution, the third bearing can make the upper part of the rotating rod rotate more smoothly and at a more uniform speed.

[0013] Preferably, a second bearing is fixedly connected to the upper end of the second installation box, and an inner wall of the second bearing is fixedly connected to an outer wall of the lower end of the rotating rod.

[0014] Through the above technical solution, the lower end of the rotating rod can rotate more smoothly and evenly through the second bearing.

[0015] Preferably, the main box body and the box cover are fixedly connected by bolts.

[0016] Through the above technical solution, the bolted connection can facilitate the installation and disassembly of the main box body and the box cover by the staff.

[0017] Preferably, the clamping block is clamped and fitted inside the lower end of the clamping column.

[0018] Preferably, the lower portion of the main box body is fixedly connected to the base by bolts.

[0019] Through the above technical solution, the bolted connection can facilitate the staff to disassemble the main box body and the base.

[0020] Preferably, the middle of each of the first ventilation holes is fixedly connected with a first protective net;

[0021] Through the above technical solution, the first protective net can prevent large particles of stone in the air from being blown into the first installation cavity by the wind, thereby reducing the damage to the sensor head caused by large particles of stone in the air.

[0022] Preferably, a fourth ventilation hole is opened in the middle of the upper surface of the box cover, and a second protective net is fixedly connected to the middle of the fourth ventilation hole.

[0023] Through the above technical solution, the air flowing inside the third installation cavity can be discharged to the outside through the fourth ventilation hole, thereby avoiding excessive pressure inside the third installation cavity.

[0024] Working principle: When the gas sensor is installed in a place with good ventilation and strong winds, the wind that has entered the first installation cavity and has been detected can enter the second installation cavity through the second ventilation hole. At this time, under the action of multiple air guide plates, the flow direction of the wind can be changed, and the ventilation routes of the multiple second ventilation holes will not be affected. At the same time, under the action of the wind shield, the wind flowing through can enter the third installation cavity through the third ventilation hole and blow the fan blades. At this time, the fan blades will drive the rotating rod to rotate, so that the second metal circular plate rotates under the influence of wind speed. At this time, due to the electromagnetic induction effect, electricity is generated under the action of strong magnets, metal columns and copper coils, thereby achieving the purpose of converting the mechanical energy generated by the rotation of the rotating rod and the fan blades into electrical energy. At the same time, the generated electricity will be stored inside the battery. At the same time, the battery can provide real-time power supply for the detection element of the gas sensor, thereby achieving the purpose of autonomous power supply without external power supply. At the same time, through the induction heads inside the multiple first installation cavities, the gas entering from the first ventilation hole can be detected at the same time, thereby achieving the purpose of simultaneously analyzing the same or different gas components, thereby improving the accuracy of detection.

[0025] (III) Beneficial effects

[0026] The present invention provides a low-power wireless self-powered gas sensor based on energy recovery.

[0027] Beneficial effects:

[0028] 1. The present invention provides a low-power wireless self-powered gas sensor based on energy recovery. Compared with existing gas sensors, the gas sensor can simultaneously detect the gas entering from the first ventilation hole through multiple sensing heads inside the first installation cavity, thereby achieving the purpose of simultaneously analyzing the same or different gas components, thereby improving the detection accuracy.

[0029] 2. The present invention provides a low-power wireless self-powered gas sensor based on energy recovery. Compared with the existing gas sensors, when the gas sensor is installed in a place with good ventilation and strong winds, the wind that has entered the first installation cavity and has been detected can enter the second installation cavity through the second ventilation hole. At this time, under the action of multiple air guide plates, the flow direction of the wind can be changed without affecting the ventilation routes of the multiple second ventilation holes. At the same time, under the action of the wind shield, the wind flowing through can enter the third installation cavity through the third ventilation hole and blow the fan blades. At this time, the fan blades will drive the rotating rod to rotate, so that the second metal circular plate rotates under the influence of wind speed. At this time, due to the electromagnetic induction effect, electricity is generated under the action of the strong magnet, the metal column and the copper coil, thereby achieving the purpose of converting the mechanical energy generated by the rotation of the rotating rod and the fan blades into electrical energy. At the same time, the generated electricity will be stored in the battery. At the same time, the battery can provide real-time power supply for the detection element of the gas sensor, thereby achieving the purpose of autonomous power supply without the need for an external power supply.

[0030] 3. The present invention provides a low-power wireless self-powered gas sensor based on energy recovery, a gas sensor, which has a reasonable overall structure, a simple and compact structure, good detection efficiency, high detection accuracy, and strong practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the explosion structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0033] Figure 3 It is a schematic diagram of the top-sectional structure of the present invention;

[0034] Figure 4 It is a schematic diagram of the front cross-section structure of the installation box and the base of the present invention;

[0035] Figure 5 It is a schematic diagram of the structure of the third bearing and the clamping column of the present invention;

[0036] Figure 6 For the present invention Figure 4 Enlarged view of point A in the middle.

[0037] Among them, 1. main box body; 2. first installation cavity; 3. second installation cavity; 4. third installation cavity; 5. first ventilation hole; 6. second ventilation hole; 7. third ventilation hole; 8. air induction plate; 9. wind shield; 10. first installation box; 11. battery; 12. second installation box; 13. first metal round plate; 14. metal column; 15. copper coil; 16. connecting rod; 17. first bearing; 18. second metal round plate; 19. strong magnet; 20. mounting frame; 21. rotating rod; 22. second bearing; 23. snap-in block; 24. fan blade; 25. box cover; 26. third bearing; 27. snap-in column; 28. base; 29. ​​filter; 30. chip; 31. induction head; 32. sensor pin; 33. signal transmission module; 34. first protective net; 35. fourth ventilation hole; 36. second protective net. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example:

[0040] like Figure 1-6 As shown, an embodiment of the present invention provides a low-power wireless self-powered gas sensor based on energy recovery, comprising a main box body 1, wherein a plurality of first installation cavities 2, a second installation cavity 3 and a third installation cavity 4 are respectively provided on the upper surface of the main box body 1, a plurality of first ventilation holes 5 are provided at one end of the first installation cavity 2 away from the center of the main box body 1, a plurality of second ventilation holes 6 are provided at the first end of the second installation cavity 3 away from the center of the main box body 1, a third ventilation hole 7 is provided on one side of the third installation cavity 4, and a plurality of air guide plates 8 and wind shield plates 9 are respectively fixedly connected to the interior of the second installation cavity 3;

[0041] A first mounting box 10 is fixedly connected to the bottom surface of the third mounting cavity 4, a battery 11 is fixedly connected to the bottom surface inside the first mounting box 10, a second mounting box 12 is fixedly connected to the middle of the upper surface of the first mounting box 10, a first metal circular plate 13 is fixedly connected to the bottom surface inside the second mounting box 12, a plurality of metal columns 14 are fixedly connected to the edge of the upper surface of the first metal circular plate 13, a plurality of copper coils 15 are wound around the outer wall of the metal column 14, a connecting rod 16 is fixedly connected to the middle of the upper surface of the first metal circular plate 13, a first bearing 17 is fixedly connected to the outer wall of the upper end of the connecting rod 16, a second metal circular plate 18 is fixedly connected to the outer wall of the first bearing 17, a plurality of strong magnets 19 are fixedly connected to the edge of the lower surface of the second metal circular plate 18, a mounting frame 20 is fixedly connected to the middle of the upper surface of the second metal circular plate 18, a rotating rod 21 is fixedly connected to the upper surface of the mounting frame 20, and four fan blades 24 are fixedly connected to the outer wall of the rotating rod 21;

[0042] A base 28 is provided at the lower end of the main box body 1, a filter 29 is fixedly connected to the bottom surface inside the base 28, a plurality of chips 30 are fixedly connected to the edges of the upper part of the filter 29, the upper ends of the chips 30 are fixedly connected to the sensing heads 31, the upper ends of the sensing heads 31 penetrate the base 28 and the main box body 1 to the inside of the first installation cavity 2, the lower ends of the chips 30 are fixedly connected to the sensor pins 32, the lower ends of the sensor pins 32 penetrate the base 28 to the outside of the base 28, and the middle part of the upper surface of the filter 29 is fixedly connected to the signal transmission module 33;

[0043] The wind that has entered the first installation cavity 2 and has been detected can be allowed to enter the second installation cavity 3 through the second ventilation hole 6. At this time, under the action of multiple air guide plates 8, the flow direction of the wind can be changed without affecting the air inlet routes of the multiple second ventilation holes 6. At the same time, under the action of the wind shield 9, the flowing wind can enter the third installation cavity 4 through the third ventilation hole 7 and blow the fan blades 24. At this time, the fan blades 24 will drive the rotating rod 21 to rotate, so that the second metal circular plate 18 rotates under the influence of wind speed. At this time, due to the electromagnetic induction effect, electricity is generated under the action of the strong magnet 19, the metal column 14 and the copper coil 15, thereby achieving the purpose of converting the mechanical energy generated by the rotation of the rotating rod 21 and the fan blades 24 into electrical energy. At the same time, the generated electricity will be stored in the battery 11. At the same time, the battery 11 can provide real-time power supply for the detection element of the gas sensor, thereby achieving the purpose of autonomous power supply without the need for an external power supply.

[0044] A box cover 25 is provided at the upper end of the main box body 1, and a third bearing 26 is fixedly connected to the middle part of the lower surface of the box cover 25, and a clamping column 27 is fixedly connected to the inner wall of the third bearing 26. A clamping block 23 is fixedly connected to the upper end of the rotating rod 21, and the third bearing 26 can make the upper part of the rotating rod 21 rotate more smoothly and at a uniform speed. A second bearing 22 is fixedly connected to the upper end of the second installation box 12, and the inner wall of the second bearing 22 is fixedly connected to the outer wall of the lower end of the rotating rod 21, and the second bearing 22 can make the lower end of the rotating rod 21 rotate more smoothly and at a uniform speed. The main box body 1 and the box cover 25 are fixedly connected by bolts, and the bolted connection can facilitate the installation and disassembly of the main box body 1 and the box cover 25 by the staff, and the clamping block 23 is fixedly connected to the clamping block 23 in the clamping block. The lower end of the connecting column 27 is internally snapped together, and the lower portion of the main box body 1 is fixedly connected to the base 28 by bolts. The bolted connection can facilitate the staff to disassemble the main box body 1 and the base 28. The middle of the first ventilation hole 5 is fixedly connected with a first protective net 34. The first protective net 34 can prevent large particles of stone in the air from being blown into the first installation cavity 2 by the wind, thereby reducing the damage to the sensor head 31 caused by large particles of stone in the air. A fourth ventilation hole 35 is opened in the middle of the upper surface of the box cover 25, and a second protective net 36 is fixedly connected to the middle of the fourth ventilation hole 35. The air flowing in the third installation cavity 4 can be discharged outward through the fourth ventilation hole 35, thereby preventing the internal pressure of the third installation cavity 4 from being too high.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-power wireless self-powered gas sensor based on energy recovery, comprising a main box (1), characterized in that: The upper surface of the main box body (1) is respectively provided with a plurality of first installation cavities (2), a second installation cavity (3) and a third installation cavity (4); a plurality of first ventilation holes (5) are provided at one end of the first installation cavity (2) away from the center of the main box body (1); a plurality of second ventilation holes (6) are provided at the first end of the second installation cavity (3) away from the center of the main box body (1); a third ventilation hole (7) is provided on one side of the third installation cavity (4); and a plurality of air guide plates (8) and air shield plates (9) are respectively fixedly connected inside the second installation cavity (3); The bottom surface of the third installation cavity (4) is fixedly connected to a first installation box (10), the bottom surface inside the first installation box (10) is fixedly connected to a storage battery (11), the middle part of the upper surface of the first installation box (10) is fixedly connected to a second installation box (12), the bottom surface inside the second installation box (12) is fixedly connected to a first metal circular plate (13), the edges of the upper surface of the first metal circular plate (13) are fixedly connected to a plurality of metal columns (14), the outer walls of the metal columns (14) are wound with a plurality of copper coils (15), and the upper surface of the first metal circular plate (13) is fixedly connected to a plurality of metal columns (14). A connecting rod (16) is fixedly connected to the middle of the surface, a first bearing (17) is fixedly connected to the outer wall of the upper end of the connecting rod (16), a second metal circular plate (18) is fixedly connected to the outer wall of the first bearing (17), a plurality of strong magnets (19) are fixedly connected to the edge of the lower surface of the second metal circular plate (18), a mounting frame (20) is fixedly connected to the middle of the upper surface of the second metal circular plate (18), a rotating rod (21) is fixedly connected to the upper surface of the mounting frame (20), and four fan blades (24) are fixedly connected to the outer wall of the rotating rod (21); A base (28) is provided at the lower end of the main box body (1); a filter (29) is fixedly connected to the bottom surface of the base (28); a plurality of chips (30) are fixedly connected to the edge of the upper portion of the filter (29); the upper ends of the chips (30) are fixedly connected to a sensing head (31); the upper ends of the sensing heads (31) pass through the base (28) and the main box body (1) to the inside of the first installation cavity (2); the lower ends of the chips (30) are fixedly connected to sensor pins (32); the lower ends of the sensor pins (32) pass through the base (28) to the outside of the base (28); and the middle portion of the upper surface of the filter (29) is fixedly connected to a signal transmission module (33); A box cover (25) is provided at the upper end of the main box body (1); a third bearing (26) is fixedly connected to the middle of the lower surface of the box cover (25); a clamping column (27) is fixedly connected to the inner wall of the third bearing (26); and a clamping block (23) is fixedly connected to the upper end of the rotating rod (21); A second bearing (22) is fixedly connected to the upper end of the second installation box (12), and an inner wall of the second bearing (22) is fixedly connected to an outer wall of the lower end of the rotating rod (21).

2. The low-power wireless self-powered gas sensor based on energy recovery according to claim 1 is characterized in that: The main box body (1) and the box cover (25) are fixedly connected by bolts.

3. The low-power wireless self-powered gas sensor based on energy recovery according to claim 1 is characterized in that: The clamping block (23) is clamped and matched inside the lower end of the clamping column (27).

4. The low-power wireless self-powered gas sensor based on energy recovery according to claim 1 is characterized in that: The lower portion of the main box body (1) is fixedly connected to the base (28) by means of bolts.

5. The low-power wireless self-powered gas sensor based on energy recovery according to claim 1 is characterized in that: The middle part of each of the first ventilation holes (5) is fixedly connected to a first protection net (34).

6. The low-power wireless self-powered gas sensor based on energy recovery according to claim 1, characterized in that: A fourth ventilation hole (35) is provided in the middle of the upper surface of the box cover (25), and a second protective net (36) is fixedly connected to the middle of the fourth ventilation hole (35).

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