An anti-icing wind speed sensor

Abstract

This utility model discloses an anti-freezing wind speed sensor, relating to the field of wind speed sensor technology. It includes a wind speed bracket and multiple wind cup assemblies. Each wind cup assembly comprises a first cup and a second cup that overlap and nest with each other. The assembly also includes a flexible heating element and a temperature sensor. The flexible heating element is shaped to fit the walls of the two cups and is nested between them. The temperature sensor is located between the two cups. This sensor, through its adaptable flexible heating element, achieves large-area contact heating of the wind cup walls, solving the problems of localized high temperatures and uneven heating in existing heating strips, ensuring uniform ice melting in the wind cups. The temperature sensor monitors the temperature in real time, preventing incomplete ice melting or overheating of the cups, ensuring stable operation of the wind cups, and improving the reliability and measurement accuracy of the sensor in harsh low-temperature environments. The structural design is reasonable, balancing practicality and ease of installation.

Description

Technical Field

[0001] This utility model relates to the field of wind speed sensor technology, specifically to an anti-freezing wind speed sensor. Background Technology

[0002] In meteorological observation, aerospace, transportation and other fields, wind speed sensors are key equipment for acquiring wind speed data, and their measurement accuracy directly affects the operational safety and decision-making accuracy of related systems. However, when wind speed sensors operate in harsh environments such as low temperature, high humidity or rain and snow, frost easily condenses on the surface of their cup assembly. This not only increases the resistance to cup rotation, leading to greater measurement errors, but in severe cases, it can also cause the cup to jam, resulting in sensor failure and the inability to collect wind speed data normally, causing great trouble for subsequent data applications. To address the freezing problem of the wind cup assembly, existing technologies often employ heating strips inside the wind cup for anti-freezing treatment, a classic example being the anti-freezing anemometer disclosed in application number CN201910742043.X. However, this heating method has significant drawbacks: the heating strip is a linear structure with a limited contact area with the wind cup wall, only heating a localized area of ​​the wind cup. This easily leads to localized high temperatures, potentially damaging the wind cup material and affecting its lifespan. Furthermore, insufficient heating in areas not covered by the heating strip results in uneven heating of the entire wind cup, incomplete melting of frost, and residual frost in certain areas. This fails to effectively ensure the normal rotation of the wind cup assembly, resulting in poor anti-freezing performance and failing to meet the stable operation requirements of anemometers in low-temperature environments. Therefore, there is an urgent need for an anti-freezing technology that can achieve uniform heating of the wind cup assembly and avoid localized high temperatures, thereby improving the reliability and measurement accuracy of anemometers in harsh low-temperature environments. Utility Model Content

[0003] To address the shortcomings of the prior art, this utility model provides an anti-freezing wind speed sensor.

[0004] The technical solution adopted by this utility model is: an anti-freezing wind speed sensor, including a wind speed bracket and a plurality of wind cup assemblies disposed on the wind speed bracket. The wind cup assembly has a first cup body and a second cup body that overlap and nest with each other. The wind cup assembly also includes a flexible heating element and a temperature sensor. The shape of the flexible heating element is adapted to the wall surface of the first cup body and the second cup body, and is sandwiched and nested between the first cup body and the second cup body. The temperature sensor is disposed between the first cup body and the second cup body.

[0005] Furthermore, it also includes a heating control unit, which is electrically connected to the flexible heating element and each of the temperature sensors, and is used to control the working state of the flexible heating element according to the signals fed back by the temperature sensors.

[0006] Furthermore, the temperature sensor is a patch digital temperature sensor or a negative temperature coefficient thermistor, and is mounted on the flexible heating element.

[0007] Furthermore, an elastic sealing ring is provided at the edge where the first cup body and the second cup body are nested together.

[0008] Furthermore, the surfaces of the first and second cup bodies are coated with a hydrophobic coating.

[0009] Furthermore, the hydrophobic coating is a nanoscale superhydrophobic coating with a thickness of 5-20 μm.

[0010] Furthermore, the flexible heating element is a flexible printed circuit board that integrates a heating circuit.

[0011] The beneficial effects of this utility model are: 1. Achieving Uniform Heating: In this patent, the flexible heating element is shaped to fit the walls of the first and second cups and is nested between them, allowing for large-area contact with the cup walls. The flexible heating element provides comprehensive, seamless heating of the cup assembly walls, effectively preventing localized high temperatures and ensuring uniform heating of the entire cup. This allows frost to melt quickly and completely from the cup surface, thoroughly solving the problems of incomplete frost melting and localized residue in existing heating methods, significantly improving the anti-freezing effect. 2. Precise temperature control ensures safe and long-lasting component operation: A temperature sensor is positioned between the first and second cup bodies to monitor the internal heating temperature of the fan cup assembly in real time. Combined with the uniform heating characteristics of the flexible heating element, the heating power can be precisely adjusted based on the monitored temperature data. This prevents damage to the fan cup material due to excessive heating and also prevents insufficient anti-freezing performance due to excessively low temperatures. While ensuring stable anti-freezing function, it effectively protects the fan cup assembly from high-temperature damage, extending the lifespan of the fan cup and even the entire wind speed sensor. 3. The structural design is reasonable, balancing practicality and ease of installation: The flexible heating element is nested between the two cups, eliminating the need for significant modifications to the wind cup assembly. This design fully utilizes the space between the two cups while ensuring a stable fit between the heating element and the wind cup wall, resulting in convenient and secure installation. Furthermore, this structure does not increase the volume or weight of the wind cup assembly and does not affect the normal rotation characteristics of the wind cup under airflow, thus balancing the practicality of the technological improvement with the stability of the original sensor performance.

[0012] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the cross-section of the wind cup assembly.

[0016] Figure 3 for Figure 2 Enlarged diagram at point A Figure 1-3 In the middle: 1. Wind speed bracket; 2. Wind cup assembly; 3. First cup body; 4. Second cup body; 5. Flexible heating element; 6. Elastic sealing ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0019] This invention provides an anti-freezing wind speed sensor.

[0020] In this embodiment, refer to Figure 1-3 The anti-freezing wind speed sensor includes a wind speed bracket 1 and multiple wind cup assemblies 2 disposed on the wind speed bracket 1. Each wind cup assembly 2 has a first cup body 3 and a second cup body 4 that are nested and overlapped with each other. The wind cup assembly also includes a flexible heating element 5 and a temperature sensor 6. The shape of the flexible heating element is adapted to the wall surface of the first cup body and the second cup body, and is sandwiched and nested between the first cup body and the second cup body. The temperature sensor is disposed between the first cup body and the second cup body.

[0021] In the above technical solution, the anti-freezing wind speed sensor includes a wind speed bracket and multiple wind cup assemblies. The wind cup assembly is composed of a first cup body and a second cup body that overlap and nest with each other. In this application, a flexible heating element and a temperature sensor are added to the wind cup assembly. The flexible heating element is adapted to the shape of the two cup body walls and is sandwiched and nested between the two cup bodies. The temperature sensor is synchronously set between the two cup bodies.

[0022] By using a flexible heating element with an adaptable shape, it achieves large-area contact heating with the wind cup wall, solving the problems of local high temperature and uneven heating caused by local heating of existing linear heating strips, and ensuring uniform ice melting of the entire wind cup; the temperature sensor monitors the temperature between the cups in real time, providing data support for subsequent temperature control, avoiding incomplete ice melting or damage to the cups due to overheating, ensuring stable operation of the wind cup assembly, and improving the sensor's adaptability to low-temperature (not shown in the figure) environments.

[0023] Specifically, it also includes a heating control unit (not shown in the figure), which is electrically connected to the flexible heating element and each of the temperature sensors, and is used to control the working state of the flexible heating element according to the signals fed back by the temperature sensors.

[0024] In this embodiment, a heating control unit is added. This unit is electrically connected to the flexible heating element and various temperature sensors. It can receive temperature signals between the cups from the temperature sensors and automatically adjust the working status of the flexible heating element, such as its start / stop and heating power, based on the signals. This achieves automated and precise control of the heating process: when the temperature sensor detects that the temperature is too low (potentially causing icing), the control unit drives the heating element to start; when the temperature reaches the target melting temperature or is too high, the control unit adjusts the power or shuts off the heating, avoiding manual intervention, reducing energy waste, and further preventing localized high temperatures or insufficient heating, thus improving the stability and intelligence of the anti-freezing function.

[0025] Specifically, the temperature sensor is a surface-mount digital temperature sensor or a negative temperature coefficient thermistor, and is mounted on the flexible heating element.

[0026] In this embodiment, the temperature sensor is a patch digital temperature sensor or a negative temperature coefficient thermistor, and the sensor is attached to the flexible heating element, which can directly sense the temperature changes of the heating element and the cup wall.

[0027] Specifically, an elastic sealing ring is provided at the edge where the first cup body and the second cup body are nested together.

[0028] In this embodiment, an elastic sealing ring is added at the edge where the first cup body and the second cup body are nested together. The sealing ring can fill the gap between the edges of the two cup bodies to achieve a sealed fit.

[0029] Specifically, the surfaces of the first and second cups are coated with a hydrophobic coating.

[0030] In this embodiment, a hydrophobic coating is applied to the outer surfaces of the first and second cup bodies to form a surface layer with hydrophobic properties. The hydrophobic coating can reduce the amount of rain, snow, and water vapor adhering to the cup surface, reducing the probability of water condensing into ice on the cup surface and reducing the risk of icing from the source.

[0031] Specifically, the hydrophobic coating is a nanoscale superhydrophobic coating with a thickness of 5-20 μm.

[0032] In this embodiment, the meter-level superhydrophobic coating has stronger hydrophobic properties and durability compared to ordinary hydrophobic coatings. It can resist rain and snow erosion for a long time and is not prone to failure due to wear. The 5-20μm thickness design ensures the hydrophobic effect while avoiding the increase in wind cup weight and the impact on rotation sensitivity due to excessive coating thickness, or the shortening of service life due to excessive coating thickness. This achieves a balance between hydrophobic performance, lightweight structure and durability.

[0033] Specifically, the flexible heating element is a flexible printed circuit board that integrates a heating circuit.

[0034] In this embodiment, the flexible printed circuit board is small in size and light in weight, and can fit tightly against the cup wall to ensure maximum heating area and further improve heating uniformity.

[0035] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. An anti-freezing wind speed sensor, comprising a wind speed bracket and a plurality of wind cup assemblies disposed on the wind speed bracket, wherein the wind cup assembly has a first cup body and a second cup body that overlap and nest with each other, characterized in that: The wind cup assembly also includes a flexible heating element and a temperature sensor. The shape of the flexible heating element is adapted to the wall surface of the first cup body and the second cup body, and is sandwiched and nested between the first cup body and the second cup body. The temperature sensor is disposed between the first cup body and the second cup body.

2. The anti-icing wind speed sensor according to claim 1, characterized in that: It also includes a heating control unit, which is electrically connected to the flexible heating element and each of the temperature sensors, and is used to control the working state of the flexible heating element according to the signals fed back by the temperature sensors.

3. The anti-icing wind speed sensor according to claim 1, characterized in that: The temperature sensor is a patch digital temperature sensor or a negative temperature coefficient thermistor, and is mounted on the flexible heating element.

4. The anti-icing wind speed sensor according to claim 1, characterized in that: An elastic sealing ring is provided at the edge where the first cup body and the second cup body are nested together.

5. The anti-icing wind speed sensor according to claim 1, characterized in that: The surfaces of the first and second cups are coated with a hydrophobic coating.

6. The anti-icing wind speed sensor according to claim 5, characterized in that: The hydrophobic coating is a nanoscale superhydrophobic coating with a thickness of 5-20 μm.

7. The anti-icing wind speed sensor according to claim 1, characterized in that: The flexible heating element is a flexible printed circuit board that integrates a heating circuit.

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