Wind speed sensing device based on miniature thermoelectric power generation

Abstract

The invention relates to a wind speed sensing device based on miniature thermoelectric power generation. The wind speed sensing device based on miniature thermoelectric power generation comprises a shell, a connecting piece, a heating piece and a detection assembly, the connecting piece is arranged in the shell, the heating piece is arranged on the connecting piece, at least one group of detection assemblies are arranged on the periphery of the connecting piece, and the detection assemblies abut against the heating piece; the detection assembly comprises a first detection piece and a second detection piece, the first detection piece and the second detection piece are arranged in a spaced mode, and the first detection piece and the second detection piece are both arranged on the connecting piece. The wind speed sensing device is longer in adaptive life and lower in maintenance cost.

Description

Technical Field

[0001] The present invention relates to the field of wind speed sensing, and particularly to a wind speed sensing device based on micro thermoelectric power generation. Background Art

[0002] Wind speed monitoring can prevent safety accidents caused by abnormal wind speeds, such as conductor galloping, tower collapse, etc. There are various types of traditional wind speed sensing devices. The most common wind speed sensor is made according to the traditional fan principle, and is a product composed of blades, a rotating shaft, bearings, and a rotation speed measurement circuit. However, these sensors are prone to damage under extreme weather conditions and have high maintenance costs. Summary of the Invention

[0003] In view of this, the present invention provides a wind speed sensing device based on micro thermoelectric power generation. The wind speed sensing device has a longer service life and lower maintenance costs.

[0004] The present invention provides the following technical solutions:

[0005] A wind speed sensing device based on micro thermoelectric power generation, comprising: a housing, a connecting member, a heating member, and a detection assembly;

[0006] The connecting member is disposed inside the housing, the heating member is disposed on the connecting member, at least one group of detection assemblies is disposed on the outer periphery of the connecting member, and the detection assembly is in contact with the heating member;

[0007] The detection assembly includes: a first detection member and a second detection member. Among them, the first detection member and the second detection member are disposed at intervals, and both the first detection member and the second detection member are disposed on the connecting member.

[0008] Further, multiple groups of detection assemblies are disposed at intervals around the outer periphery of the connecting member, and an included angle A exists between two adjacent detection assemblies.

[0009] Further, the range of the included angle A is 45° ≤ A ≤ 90°.

[0010] Further, the housing has an upper housing and a lower housing, and the upper housing and the lower housing are snap-connected;

[0011] Both the upper housing and the lower housing are provided with limiting members. The limiting members are disposed around the housing, and the limiting members are used to limit the relative position of the connecting member.

[0012] Further, there is a gap between two adjacent limiting members, a baffle is disposed in the gap, and a through hole is disposed on the baffle.

[0013] Further, both the first detecting member and the second detecting member have a first portion and a second portion, wherein the first portion extends from the through hole to the outside of the housing, and the second portion abuts against the heating member.

[0014] Further, the first detecting member and the second detecting member are thermoelectric generators or thermocouples.

[0015] Further, hollow portions are provided on both the housing and the connecting member.

[0016] Further, a diversion hole and a diversion groove communicating with the diversion hole are provided on the outer side wall of the housing, and the diversion groove extends to the through hole and communicates with the through hole.

[0017] Further, it further includes: a controller;

[0018] The controller is disposed inside the housing, and the controller is connected to multiple groups of the detecting members.

[0019] The connecting member is used for installing the heating member and the detecting assembly. The heating member is disposed on the connecting member, and at least one group of detecting assemblies is disposed on the outer periphery of the connecting member, and the detecting assembly abuts against the heating member, so that the heating member can heat the detecting assembly to increase the temperature of the detecting assembly; the detecting assembly includes a first detecting member and a second detecting member, the first detecting member and the second detecting member are spaced apart, and both the first detecting member and the second detecting member are disposed on the connecting member. Thus, when an air flow blows against one of the detecting members, the temperature of this detecting member can be reduced, while the temperature of the other detecting member remains the original temperature or decreases less compared to the temperature of the first detecting member against which the air flow blows. In this way, different voltages can be generated between the first detecting member and the second detecting member, and the wind speed can be judged based on the potential difference between the first detecting member and the second detecting member, and the current wind speed and wind direction can be judged based on the potential difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is an exploded view of the wind speed sensing device provided by the embodiment of the present invention;

[0022] Figure 2 It is a schematic structural diagram of the connecting member and the detecting assembly provided by the embodiment of the present invention;

[0023] Figure 3The top view of the wind speed sensing device provided by the embodiment of the present invention;

[0024] Figure 4 The overall structural schematic diagram of the wind speed sensing device provided by the embodiment of the present invention.

[0025] Explanation of reference numerals:

[0026] 100 - Wind speed sensing device; 10 - Housing; 11 - Upper housing; 12 - Lower housing; 13 - Limiting member; 14 - Baffle; 141 - Through hole; 20 - Connecting member; 21 - Hollowed-out portion; 30 - Heating member; 40 - Detection assembly; 41 - First detection member; 42 - Second detection member; 421 - First part; 422 - Second part. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0029] Referring to "embodiment" or "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment or embodiment may be included in at least one embodiment of the present invention. The phrase appears at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0030] In the prior art, traditional wind speed monitoring mainly relies on mechanical or electronic sensors, which have movable parts or precision electronic components inside. In the scenario of power transmission line inspection, when such sensors are exposed to harsh weather conditions such as rain, snow, and hail for a long time, the rotating parts are prone to freezing and jamming, and the electronic components are prone to moisture-induced failure, resulting in the interruption of monitoring data. A certain high-voltage transmission line once failed to monitor due to the icing of the blades of a mechanical anemometer, and failed to give an early warning of the conductor galloping caused by strong winds in time, ultimately resulting in a tower collapse accident.

[0031] To solve the above problems, the R & D team observed the self-power generation characteristics of thermoelectric generators under a temperature gradient and began to explore the feasibility of using temperature changes as the wind speed sensing signal source. Through experiments, it was found that when air flows through the heating element, the difference in heat dissipation rates at different positions on its surface can form a stable temperature gradient. By optimizing the layout of the detection unit, the temperature difference can be converted into a quantifiable electrical signal. Thus, the design idea of integrating a micro-thermoelectric generator device with a heat source module to construct a wind speed sensing device without mechanical moving parts was generated.

[0032] In view of this, this embodiment provides a wind speed sensing device based on micro-thermoelectric power generation. The wind speed sensing device has a longer service life and lower maintenance costs.

[0033] Please refer to Figure 1 , a wind speed sensing device 100 based on micro-thermoelectric power generation, comprising: a housing 10, a connecting member 20, a heating member 30, and a detection assembly 40;

[0034] The connecting member 20 is disposed inside the housing 10, the heating member 30 is disposed on the connecting member 20, at least one group of detection assemblies 40 is disposed on the outer periphery of the connecting member 20, and the detection assembly 40 abuts against the heating member 30;

[0035] The detection assembly 40 includes: a first detection member 41 and a second detection member 42, wherein the first detection member 41 and the second detection member 42 are spaced apart and both are disposed on the connecting member 20.

[0036] The connecting member 20 is used to mount the heating member 30 and the detection assembly 40. The heating member 30 is disposed on the connecting member 20, and at least one set of detection assemblies 40 is disposed on the outer periphery of the connecting member 20, and the detection assembly 40 abuts against the heating member 30, so that the heating member 30 can heat the detection assembly 40 to increase the temperature of the detection assembly 40; the detection assembly 40 includes a first detection member 41 and a second detection member 42. The first detection member 41 and the second detection member 42 are spaced apart, and both the first detection member 41 and the second detection member 42 are disposed on the connecting member 20. Thus, when an air flow blows towards one of the detection members, the temperature of this detection member can be decreased, while the temperature of the other detection member remains at the original temperature or decreases less compared to the temperature of the first detection member 41 towards which the air flow blows. In this way, different voltages can be generated between the first detection member 41 and the second detection member 42. The wind speed can be judged based on the potential difference between the first detection member 41 and the second detection member 42, and the current wind speed and wind direction can be judged through the potential difference.

[0037] It can be understood that the first detection member 41 and the second detection member 42 can convert the temperature difference into an output voltage based on the Seebeck effect. The voltage is proportional to the temperature difference. Therefore, the wind speed is positively correlated with the cold-end temperature, and thus the voltage is positively correlated with the wind speed. When there is no wind outside, the temperatures of the first detection member 41 and the second detection member 42 are balanced and no potential difference is generated. When the air flow flows through the housing 10, the detection member on the windward side is accelerated in forced convection heat dissipation, while the detection member on the leeward side maintains a higher temperature. The temperatures between the two are different, so a potential difference is generated. The current wind speed or wind direction can be inferred through the potential difference.

[0038] It can be understood that the installation positions of the first detection member 41 and the second detection member 42 are relatively fixed. The first detection member 41 and the second detection member 42 are mirror-symmetrically arranged, that is, there is an included angle of 180° between the first detection member 41 and the second detection member 42. For example, the wind speed sensing device 100 includes a set of detection assemblies 40, and the wind speed sensing device 100 is placed facing the north-south direction. Among them, the first detection member 41 is placed on the north side, and the second detection member 42 is placed on the south side. In this way, when the north wind blows, the temperature of the first detection member 41 will decrease and a voltage will be generated, while the second detection member 42 will not generate a voltage, so that the wind direction can be judged.

[0039] Compared with the prior art, the traditional mechanical anemometer relies on the rotation of the wind cup or blade to drive the encoder to work, and the rotating parts are prone to icing and failure under freezing rain conditions. This solution adopts the static temperature field detection principle, isolates the external moisture erosion through the housing 10, and directly outputs an electrical signal by using the thermoelectric generator, eliminating the reliability hidden trouble brought by the moving parts. At the same time, the micro-thermoelectric generator itself has the characteristics of strong weather resistance and long service life, and is suitable for long-term outdoor monitoring scenarios.

[0040] Please refer to Figure 1 andFigure 2 In some embodiments, multiple groups of detection components 40 are all arranged at intervals around the outside of the connecting member 20, and there is an included angle A between two adjacent detection components 40.

[0041] It can be understood that the connecting member 20 can be set to be square or circular, and the detection components 40 are arranged at intervals around the outer periphery of the connecting member 20, that is, multiple groups of detection components 40 are arranged in an array or non-equidistantly distributed along the outer periphery of the connecting member 20, so that there is an included angle A between two adjacent groups of detection components 40. When multiple groups of detection components 40 are arranged in an array, the included angle A between two adjacent detection components 40 is equal; when multiple groups of detection components 40 are non-equidistantly distributed, the included angle A between two detection components 40 may not be equal.

[0042] It can be understood that the detection components 40 form an annular distribution pattern around the connecting member 20, and each detection unit corresponds to an airflow action area at a specific angle. When the airflow impacts from any direction, different detection components 40 will form a temperature difference gradient change due to their different positions. By measuring the change amount of the voltage difference between each unit, the decomposition calculation of the wind speed vector is realized. Setting an included angle between adjacent units not only prevents the signal coupling error caused by the overlap of the thermal fields, but also enables the coverage angle of the annular array to reach 360° for blind area-free detection; it enhances the environmental adaptability of the device under extreme weather conditions and at the same time avoids the problem of accuracy decline caused by mechanical wear.

[0043] Please refer to Figure 1 and Figure 2 In some embodiments, the range of the included angle A is 45° ≤ A ≤ 90°.

[0044] It can be understood that the included angle refers to the central angle formed when the detection components 40 are arranged adjacent to each other in the circumferential direction, which can be specifically realized by an equidistant or non-equidistant circumferential arrangement method. The range of the included angle A is 45° to 90°. The size of the included angle between two adjacent detection components 40 is related to the number of detection components 40 set. When two detection components 40 are set, the included angle A is 90 degrees. When three detection components 40 are set, the included angle is 33°. When four detection components 40 are set, the included angle is 33°; the number set can be determined according to the actual use scenario.

[0045] It can be understood that the specific angle of the above-mentioned included angle A can be 45°, 50°, 55°, 60°, 65°, 70, 75, 80, 85, 90 and other angles. Generally, two detection components can be set to form a basic coverage (that is, four detection components are set). In this way, the airflow changes in different directions can be captured by the four detection components. The preferred technical solution is to set three groups of detection components 40 (that is, six detection components). Setting three groups of detection components 40 enables the device to work collaboratively when encountering sudden wind direction changes. The airflow direction can be quickly judged through the temperature difference change, improving the response speed to complex wind fields; at the same time, it can also avoid the thermal field interference caused by overly dense arrangement, achieving the optimal balance between detection sensitivity and structural efficiency.

[0046] Compared with the prior art, traditional wind speed sensors usually have too many detection components 40 or redundancy in local areas. Although the detection accuracy is improved, the manufacturing cost and failure probability are significantly increased. By defining a specific angle range, the present invention realizes the optimal configuration of the number of detection components 40 and the coverage range on the premise of ensuring the wind direction recognition accuracy.

[0047] Please refer to Figure 1 , in some embodiments, the housing 10 has an upper housing 11 and a lower housing 12, and the upper housing 11 and the lower housing 12 are snap-connected;

[0048] Both the upper housing 11 and the lower housing 12 are provided with limit members 13. The limit members 13 are arranged around the housing 10, and the limit members 13 are used to limit the relative positions of the connecting members 20.

[0049] It can be understood that the housing 10 includes an upper housing 11 and a lower housing 12. The upper housing 11 and the lower housing 12 are detachably connected by snap connection. Specifically, it can be realized by snap or threaded connection. The snap connection of the upper housing 11 and the lower housing 12 is convenient for maintaining the detection components 40 or the heating elements 30 in the housing 10; limit members 13 are provided on both the upper housing 11 and the lower housing 12. The limit members 13 are arranged in the housing 10, and the limit members 13 can limit the movement of the connecting members 20 in the housing 10, preventing the connecting members 20 from shifting under the impact of the airflow.

[0050] It can be understood that the upper housing 11 and the lower housing 12 are detachably assembled through a snap structure. Raised portions are provided as limit members 13 at the four peripheral edges of the housing 10. When the housing 10 is closed, the raised portions of the upper housing 11 and the lower housing 12 form an annular constraint area surrounding the connecting member 20. The connecting member 20 is clamped between the limit members 13 of the upper and lower housings 12. Its radial displacement is blocked by the limit members 13 around, and its axial displacement is suppressed by the limit members 13 of the upper and lower housings 12. This structure keeps the connecting member 20 fixed in three-dimensional space, ensuring the stable contact between the detection components 40 and the heating elements 30 even under strong wind or vibration impacts.

[0051] Please refer to Figure 1 , in some embodiments, there is a gap between two adjacent limiting members 13, and a baffle 14 is arranged in the gap, and a through hole 141 is arranged on the baffle 14.

[0052] It can be understood that gaps are formed between multiple limiting members 13 arranged on the housing 10. There are 4 gaps arranged on the limiting members 13, and baffles 14 are arranged in the gaps, so that the interior of the housing 10 can be a relatively sealed environment. In order to enable the detection member to extend out of the housing 10 to have higher detection accuracy, a through hole 141 is arranged on the baffle 14, and the detection member extends out from the through hole 141, so that the detection member can have higher detection accuracy; at the same time, the baffle 14 can also isolate the air flow, enabling the heating member 30 to better heat the detection assembly 40.

[0053] Please refer to Figure 1 and Figure 2 , in some embodiments, both the first detection member 41 and the second detection member 42 have a first portion 421 and a second portion 422. Among them, the first portion 421 extends from the through hole 141 to the outside of the housing 10, and the second portion 422 abuts against the heating member 30.

[0054] It can be understood that both the first detection member 41 and the second detection member 42 include: a first portion 421 and a second portion 422. Among them, the first portion 421 and the second portion 422 are connected in sequence, and the first portion 421 extends out of the housing 10 from the through hole 141 and is the structural part exposed to the external environment. Specifically, it can be made of a metal heat conducting sheet or a semiconductor material, and is used to directly contact the air flow and sense the temperature change. The second portion 422 refers to the structural part where the detection member contacts the heating member 30; when the external air flow flows through the housing 10, the first portion 421 is directly exposed to the air flow environment, and an electric signal is generated through the thermoelectric effect. The second portion 422 forms a heat conduction path through physical contact with the heating member 30, enabling the detection member to form a stable temperature gradient between the heat source of the heating member 30 and the external environment. The existence of the through hole 141 enables the first portion 421 to extend to the outside of the housing 10 without destroying the airtightness, and at the same time cooperates with the through hole 141 on the baffle 14 to form a directional air flow channel. This split structure enables the detection member to maintain the heat conduction efficiency while avoiding signal drift caused by uneven overall heating, and realizes the accurate measurement and comparison of the ambient temperature change and the heat source temperature through function separation.

[0055] In some embodiments, the first detection member 41 and the second detection member 42 are thermoelectric generators or thermocouples.

[0056] It is understandable that a thermoelectric generator is a solid-state device that directly converts thermal energy into electrical energy through the Seebeck effect, which can be specifically realized by using bismuth telluride-based semiconductor materials. A thermocouple is a temperature measurement element composed of two different conductors, which can be specifically realized by using a nickel-chromium-nickel silicon alloy material combination. Both convert the change in the potential difference caused by detecting the temperature difference into an electrical signal.

[0057] It is understandable that when the device is exposed to an air flow environment, a temperature gradient is formed between the heating element 30 and the external environment. When a thermoelectric generator is used, the temperature difference between its heated surface and the cold end generates a stable voltage, and the value of this voltage fluctuates with the change in the heat dissipation efficiency caused by the change in wind speed. When a thermocouple is used, the two connection points are respectively in contact with the heating element 30 and the ambient air, and the change in the thermoelectric potential caused by the temperature difference is converted into a wind speed measurement signal. Both components directly sense the change in the temperature field through physical contact and can form a detection signal without relying on external power supply.

[0058] Please refer to Figure 3 or Figure 4 , in some embodiments, the housing 10 and the connecting member 20 are both provided with a hollowed-out portion 21.

[0059] It is understandable that by providing the hollowed-out portion 21 on the housing 10 and the connecting member 20, the hollowed-out portion 21 of the housing 10 allows external air flow to pass through the internal space of the housing 10, accelerating the diffusion of heat around the heating element 30 and preventing excessive heat accumulation in a closed environment from causing abnormal temperature rise of the detection component 40. It can also reduce the volume of the detection device.

[0060] In some embodiments, a diversion hole and a diversion groove communicating with the diversion hole are provided on the outer side wall of the housing 10, and the diversion groove extends to the through hole 141 and communicates with the through hole 141.

[0061] It is understandable that the diversion hole refers to a hole structure opened on the surface of the housing 10. The diversion groove is provided on the outer side wall of the housing 10 and communicates with the diversion hole, so that the air flow can enter the diversion groove through the diversion hole. The diversion groove also extends to the position of the through hole 141 and communicates with the through hole 141, so that a constraining effect can be formed on the air flow to eliminate the local air flow stagnation caused by the change in the external wind direction, and the air flow in different directions can be effectively guided to the position of the detection component.

[0062] In some specific embodiments, a plurality of diversion holes can be evenly distributed along the circumferential direction of the housing 10. For example, one diversion hole is provided on each of the four side walls of the housing 10, and each diversion hole is connected to an independent diversion groove and extends to the through hole 141 in the corresponding direction. The depth of the diversion groove can be set to 2 - 5 millimeters, and the inner wall of the groove can be polished to reduce the air flow resistance, thereby improving the sensitivity and direction resolution of the wind speed detection, and at the same time reducing the interference of environmental turbulence on the detection result.

[0063] In some embodiments, it further includes: a controller;

[0064] The controller is disposed within the housing 10, and the controller is connected to multiple groups of the detection members.

[0065] It can be understood that the controller is disposed in the internal space of the housing 10. The controller is used to process electrical signals and can be specifically implemented by a microprocessor or an integrated circuit chip. By receiving the thermoelectric power generation signals of the first detection member 41 and the second detection member 42 and converting them into wind speed data, the detection device can directly output data of the wind direction and the wind speed, improving the convenience of the detection device.

[0066] In the present invention, the mention of "embodiment" or "embodiment manner" means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described in the present invention can be combined with other embodiments. In addition, it should also be understood that the features, structures, or characteristics described in each embodiment of the present invention can be combined arbitrarily without contradiction to form another embodiment that does not depart from the spirit and scope of the technical solution of the present invention.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solution of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A wind speed sensing device based on micro thermoelectric power generation, characterized in that, Including: A housing (10), a connecting member (20), a heating member (30), and a detection assembly (40); The connecting member (20) is disposed within the housing (10), the heating member (30) is disposed on the connecting member (20), at least one set of detection assemblies (40) is disposed on the outer periphery of the connecting member (20), and the detection assemblies (40) are in contact with the heating member (30); The detection assembly (40) includes: a first detection member (41) and a second detection member (42), wherein the first detection member (41) and the second detection member (42) are spaced apart, and both the first detection member (41) and the second detection member (42) are disposed on the connecting member (20).

2. The wind speed sensing device based on micro thermoelectric power generation according to claim 1, wherein Multiple sets of detection assemblies (40) are all disposed at intervals around the outer periphery of the connecting member (20), and there is an included angle A between two adjacent detection assemblies (40).

3. The wind speed sensing device based on micro thermoelectric power generation according to claim 2, characterized in that, The range of the included angle A is 45° ≤ A ≤ 90°.

4. The wind speed sensing device based on micro thermoelectric power generation according to claim 1, characterized in that, The housing (10) has an upper shell (11) and a lower shell (12), and the upper shell (11) and the lower shell (12) are snap-connected; Both the upper shell (11) and the lower shell (12) are provided with limiting members (13), the limiting members (13) are disposed around the housing (10), and the limiting members (13) are used to limit the relative position of the connecting member (20).

5. The wind speed sensing device based on micro thermoelectric power generation according to claim 4, wherein There is a gap between two adjacent limiting members (13), a baffle (14) is disposed in the gap, and a through hole (141) is disposed on the baffle (14).

6. The wind speed sensing device based on micro thermoelectric power generation according to claim 5, characterized in that Both the first detection member (41) and the second detection member (42) have a first portion (421) and a second portion (422), wherein the first portion (421) extends from the through hole (141) to the outside of the housing (10), and the second portion (422) is in contact with the heating member (30).

7. The wind speed sensing device based on micro thermoelectric power generation according to claim 1, characterized in that, The first detection member (41) and the second detection member (42) are thermoelectric generators or thermocouples.

8. The wind speed sensing device based on micro thermoelectric power generation according to claim 1, characterized in that Hollow portions (21) are disposed on both the housing (10) and the connecting member (20).

9. The wind speed sensing device based on micro thermoelectric power generation according to claim 6, characterized in that, Flow guiding holes and flow guiding grooves communicating with the flow guiding holes are disposed on the outer side wall of the housing (10), the flow guiding grooves extend to the through hole (141) and communicate with the through hole (141).

10. The wind speed sensing device based on micro thermoelectric power generation according to claim 1, characterized in that, Further including: A controller; The controller is disposed within the housing (10), and the controller is connected to multiple sets of the detection members.

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