Field meteorological station data detection device

Abstract

The invention provides a field meteorological station data detection device. The device comprises a middle frame, a cover plate fixed to the front side of the middle frame, and a back plate fixed to the rear side of the middle frame. Wherein the edge part of the front side of the top of the middle frame extends downwards along the outer surface of the cover plate, the inner surface of the rear side of the top of the middle frame is arranged in a step shape, and the top and the bottom of the back plate are attached to the inner surfaces of the top and the bottom of the middle frame; a circuit board is installed in a cavity defined by the middle frame, the cover plate and the back plate, the circuit board is arranged on the side close to the cover plate, and a sensor capable of detecting meteorological data is attached to the surface of the circuit board. An interface connected with the circuit board and a drain hole with the bottom flush with the inner surface of the back plate are formed in the bottom of the middle frame in a penetrating manner, so that even if water accidentally enters the device, the water can flow down along the back plate at the bottom, finally, the water can naturally flow out along the drain hole at the lower end and cannot be gathered in the device; and the circuit board close to one side of the cover plate cannot be contacted, so that a short-circuit fault is avoided.

Description

Technical Field

[0001] This application relates to the field of outdoor waterproofing technology, and in particular to a field weather station data detection device. Background Technology

[0002] Currently, when conducting meteorological data measurement in the field, measuring temperature, humidity, and air pressure are essential steps. Therefore, sensors need to be in direct contact with the atmosphere, making complete sealing impossible. Some interfaces need to protrude from the casing, further complicating sealing. However, outdoor data detection circuits must be waterproofed; otherwise, short circuits may occur due to rain or dew. Therefore, finding a simple and low-cost solution to this dilemma has become a major challenge for field weather station equipment.

[0003] Existing technology offers one solution: covering the entire device with a large rainproof enclosure. However, this significantly increases the device's size and weight, making it difficult to carry to harsh environments (such as high-altitude mountainous areas). Furthermore, since the enclosure is not completely sealed, if the circuit board is placed close to the enclosure wall, occasional water ingress can easily cause a short circuit. Another solution is to wrap the sensor with a waterproof and breathable membrane (or similar product). While this method does provide some waterproofing, after prolonged use, solutes in rainwater will adhere to the breathable membrane after evaporation, gradually clogging its pores and reducing breathability. Simultaneously, when there are rapid temperature changes between day and night, the breathable membrane has its limits, preventing moisture from escaping in time. This condensation inside the device can also cause short circuits due to water contact with the circuit board. Summary of the Invention

[0004] The purpose of this application is to at least solve one of the aforementioned technical defects, particularly the technical defect in the prior art where circuit boards are easily soaked by rain or dew when conducting meteorological data measurement work in the field, resulting in short circuit failures.

[0005] This application provides a field weather station data detection device, the device including a middle frame, a cover plate fixed to the front side of the middle frame, and a back plate fixed to the rear side of the middle frame;

[0006] The top front edge of the middle frame extends downward along the outer surface of the cover plate, the top rear inner surface of the middle frame is stepped, and the top and bottom of the back plate are in contact with the top and bottom inner surfaces of the middle frame.

[0007] A circuit board is installed in the cavity formed by the middle frame, the cover plate and the back plate. The circuit board is located on the side close to the cover plate, and a sensor for detecting meteorological data is attached to the surface of the circuit board.

[0008] The bottom of the middle frame has an interface for connecting to the circuit board, and a drainage hole that is flush with the inner surface of the back plate.

[0009] Optionally, the bottom outer surface of the middle frame near the edge of the cover plate has a sloping structure;

[0010] The bottom of the cover plate extends at least 0.1 mm beyond the top of the ramp structure.

[0011] Optionally, the slope structure makes an angle of 45° with the horizontal direction.

[0012] Optionally, the top front edge portion of the middle frame extends downward by at least 1 mm.

[0013] Optionally, the length of the portion of the stepped inner surface that contacts the inner surface of the back plate is no more than 1 mm.

[0014] Optionally, the device further includes a solar panel installed within the cavity formed by the middle frame, the cover plate, and the back plate;

[0015] The solar panel is disposed on the side near the cover plate, and the solar panel is fixed near the top inner surface of the middle frame, while the circuit board is fixed near the bottom inner surface of the middle frame.

[0016] Optionally, the cover plate is a transparent acrylic sheet.

[0017] Optionally, the front of the solar panel is attached to the inner surface of the cover plate, and the back of the solar panel is attached to the overlapping portion of the surface of the circuit board.

[0018] Optionally, the cover plate and / or the back plate are transparent acrylic sheets.

[0019] Optionally, the thickness of the cover plate and the back plate is at least 1.8 mm.

[0020] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:

[0021] This application provides a field weather station data detection device, which includes a middle frame, a cover plate fixed to the front side of the middle frame, and a back plate fixed to the rear side of the middle frame. The top front edge of the middle frame extends downwards along the outer surface of the cover plate, preventing rainwater from entering the device through the gap between the top of the middle frame and the cover plate, allowing it to flow naturally down the cover plate surface. The top rear inner surface of the middle frame is stepped, and the top and bottom of the back plate are fitted to the top and bottom inner surfaces of the middle frame. This stepped design also ensures that rainwater cannot enter the device at this location. A circuit board is installed within the cavity formed by the middle frame, cover plate, and back plate, located near the cover plate. Sensors for detecting meteorological data are mounted on the surface of the circuit board. This integrated manufacturing allows for reduced connector count and improved reliability and stability. The bottom of the mid-frame features an interface for connecting to the circuit board. This placement prevents rainwater from entering. Additionally, a drainage hole flush with the inner surface of the back panel is provided at the bottom of the mid-frame. This ensures that even if water enters the device, it will flow down the back panel and out through the drainage hole, preventing water accumulation and contact with the circuit board near the cover, thus avoiding short circuits. Furthermore, the device's internal cavity is directly connected to the outside atmosphere via the drainage hole. Therefore, the sensors mounted on the circuit board can detect real-time temperature, humidity, and air pressure. Even under drastic temperature fluctuations, moisture inside the device can dissipate quickly through the drainage hole, preventing condensation. Even in the worst-case scenario where condensation occurs, it can be rapidly drained. This ensures good communication between the sensors and the outside atmosphere, naturally protecting the circuit board from rain, snow, and condensation. Exposed interfaces do not require waterproofing, maintaining a compact device size. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A side sectional view of a field weather station data detection device provided in an embodiment of this application;

[0024] Figure 2 The waterproofing process is illustrated in the embodiments of this application.

[0025] Figure 3This is a structural illustration of the relationship between the bottom outer surface of the middle frame and the cover plate provided in an embodiment of this application.

[0026] Figure 4 A schematic diagram of the structure of the weather station data detection device after adding a solar panel, provided in an embodiment of this application;

[0027] Explanation of the labels in the attached diagram:

[0028] 1. Mid-frame; 2. Cover plate; 3. Back plate; 4. Circuit board; 5. Interface; 6. Drainage hole; 7. Solar panel. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] In one embodiment, such as Figure 1 , 2 As shown, Figure 1 This is a side sectional view of a field weather station data detection device provided in an embodiment of this application. Figure 2 This is a diagram illustrating the waterproofing process provided in an embodiment of this application. This application provides a field weather station data detection device, which may include a middle frame 1, a cover plate 2 fixed to the front side of the middle frame 1, and a back plate 3 fixed to the rear side of the middle frame 1.

[0031] The top front edge of the middle frame 1 extends downward along the outer surface of the cover plate 2, the top rear inner surface of the middle frame 1 is stepped, and the top and bottom of the back plate 3 are in contact with the top and bottom inner surfaces of the middle frame 1.

[0032] A circuit board 4 is installed in the cavity formed by the middle frame 1, the cover plate 2 and the back plate 3. The circuit board 4 is located on the side close to the cover plate 2, and a sensor capable of detecting meteorological data is attached to the surface of the circuit board 4.

[0033] The bottom of the middle frame 1 is provided with an interface 5 for connecting to the circuit board 4, and a drainage hole 6 that is flush with the inner surface of the back plate 3.

[0034] In this embodiment, as Figure 1 , 2As shown, the device of this application may include a middle frame 1, which serves as the main structure of the device and plays a role in supporting and fixing other components. The middle frame 1 is a one-piece structural design and can be obtained by 3D printing. The material used for 3D printing is resin, but any other relatively strong and tough material, such as ABS engineering plastic, metal, etc., can also be used, without limitation.

[0035] The design of the middle frame 1 not only considers structural stability but also waterproofing. Its top front edge extends downwards along the outer surface of the cover plate 2, effectively blocking rainwater from falling from above and preventing it from seeping into the device through the gap between the middle frame 1 and the cover plate 2. Simultaneously, the top rear inner surface of the middle frame 1 is stepped, and its top and bottom inner surfaces fit tightly against the top and bottom of the back plate 3, further enhancing the device's waterproofing performance.

[0036] Cover plate 2, fixed to the front side of the middle frame 1, serves to protect the internal circuitry and sensors. Cover plate 2 can be made of transparent acrylic sheet or other high-strength materials, depending on the specific circumstances; no restrictions are imposed here. This ensures that the internal sensors can receive external meteorological information normally while preventing rainwater and other external factors from directly contacting the circuit board.

[0037] The back panel 3, fixed to the rear side of the middle frame 1, together with the middle frame 1 and the cover plate 2, forms a closed cavity. The design of the back panel 3 also takes into account waterproofing and stability requirements. Its top and bottom are tightly fitted to the top and bottom inner surfaces of the middle frame 1 to prevent rainwater from seeping into the device from the back. At the same time, the thickness of the back panel 3 meets certain requirements to increase the strength and durability of the device.

[0038] Circuit board 4 is installed within the cavity formed by the middle frame 1, cover plate 2, and back plate 3, on the side closest to cover plate 2. For example, when the middle frame 1 of this application is manufactured using 3D printing, the complex internal mounting pillars and limiting grooves can be machined in one step during the 3D printing process, and then installed through the limiting grooves and mounting pillars on the middle frame 1. Furthermore, a sensor capable of detecting meteorological data is mounted on circuit board 4 of this application for real-time acquisition and transmission of meteorological data. The design of circuit board 4 takes into account the requirements of waterproofing and anti-interference to ensure that the sensor can operate stably and accurately.

[0039] Interface 5, which runs through the bottom of the middle frame 1, connects to the circuit board 4. Interface 5 is used for data transmission and communication with external devices or systems, or for connecting an external temperature sensor, thus preventing reading distortion caused by heating of the air inside the cavity. Furthermore, because interface 5 is located at the bottom of the middle frame 1, it effectively prevents rainwater from entering, ensuring the stability and reliability of data transmission.

[0040] A drainage hole 6 is also provided through the bottom of the middle frame 1, and its bottom is flush with the inner surface of the back plate 3. The function of the drainage hole 6 is to promptly drain water from the device when it accumulates inside, preventing water from damaging the circuit board 4 and the sensor. The design of the drainage hole 6 takes into account the balance between waterproofing and drainage, ensuring that the device can still work normally in harsh outdoor environments. In addition, the diameter of the drainage hole 6 in this application can be set to more than 1 mm, which makes it less likely to be blocked by solutes in rainwater and ensures long-term use.

[0041] Furthermore, since the waterproof structure of this application primarily utilizes gravity to achieve natural waterproofing, when installing the field weather station data detection device, the device can be positioned as follows: Figure 1 The device can be installed perpendicular to the ground, or it can be installed at an angle, depending on the actual situation, as long as it can be naturally waterproofed by gravity after installation. Furthermore, during installation, to ensure the sensor mounted on the circuit board effectively collects meteorological data, the front of the sensor should face outwards to allow for stable and reliable data collection.

[0042] In the above embodiment, the device includes a middle frame 1, a cover plate 2 fixed to the front side of the middle frame 1, and a back plate 3 fixed to the rear side of the middle frame 1. The top front edge of the middle frame 1 extends downward along the outer surface of the cover plate 2, so that when rainwater falls, it cannot enter the device through the gap between the top of the middle frame 1 and the cover plate 2, but flows down naturally from the surface of the cover plate 2. The top rear inner surface of the middle frame 1 is stepped, and the top and bottom of the back plate 3 are attached to the top and bottom inner surfaces of the middle frame 1. This stepped design ensures that rainwater cannot enter the device from this location. A circuit board 4 is installed in the cavity formed by the middle frame 1, the cover plate 2, and the back plate 3. The circuit board 4 is located on the side close to the cover plate 2, and a sensor for detecting meteorological data is mounted on the surface of the circuit board 4. This allows for integrated manufacturing, thereby reducing the number of connectors and improving reliability and stability. An interface 5 for connecting to the circuit board 4 is provided through the bottom of the middle frame 1. Since the interface 5 is located at the bottom, it prevents rainwater from entering. Additionally, a drainage hole 6, flush with the inner surface of the back plate 3, is provided through the bottom of the middle frame 1. This ensures that even if water accidentally enters the device, it will flow down the back plate 3 and eventually drain out naturally through the drainage hole 6, preventing water accumulation inside the device and contact with the circuit board 4 near the cover plate 2, thus avoiding short circuits. Furthermore, the device's internal cavity is directly connected to the outside atmosphere through the drainage hole 6. Therefore, the sensors mounted on the surface of the circuit board 4 can detect real temperature, humidity, and air pressure. Even under drastic temperature changes between day and night, moisture inside the device can be quickly released through the drainage hole, preventing condensation. Even in the worst-case scenario where condensation occurs inside the device, it can be quickly discharged through the drainage hole 6. This ensures good communication between the sensors and the outside atmosphere, naturally achieving rain and snow protection and condensation prevention for the circuit board 4. This allows the interface 5 to be exposed without waterproofing, ensuring a compact device size.

[0043] In one embodiment, such as Figure 3 As shown, Figure 3 This is a structural diagram showing the relationship between the bottom outer surface of the middle frame 1 and the cover plate 2 provided in an embodiment of this application; the bottom outer surface of the middle frame 1 near the edge of the cover plate 2 has a sloping structure.

[0044] The bottom of the cover plate 2 extends at least 0.1 mm beyond the top of the ramp structure.

[0045] In this embodiment, the bottom outer surface of the middle frame 1 near the edge of the cover plate 2 has a sloping structure. This design is mainly to further prevent moisture from entering from the bottom of the device. When rainwater or dew flows down the outer wall of the device, the sloping structure can guide the water flow away from key components such as the circuit board 4 and the interface 5, reducing the possibility of moisture directly contacting these components.

[0046] Meanwhile, this application extends the bottom of the cover plate 2 beyond the top of the slope structure by at least 0.1 mm. This slight height difference can block water to a certain extent. Even if water flows to the top of the slope structure, it is difficult for it to continue to penetrate into the device, thereby enhancing the waterproof performance of the device. It is understandable that in severe weather conditions, such as during heavy rain, water droplets falling from the air impacting the device will generate an instantaneous pressure of up to about 10,000 Pa. If the bottom of the cover plate 2 is not extended by 0.1 mm, when water droplets directly impact the seam, this instantaneous pressure will force water into the inner cavity, leading to water ingress into the device. Furthermore, over time, the risk of short circuits in the device's internal circuitry will gradually increase. However, with the bottom of the cover plate 2 extended by at least 0.1 mm, the falling water droplets cannot directly impact the seam but flow naturally down the slope. The instantaneous pressure generated at this time is almost negligible, so water will hardly enter the inner cavity from the seam.

[0047] In one embodiment, the ramp structure makes an angle of 45° with the horizontal direction.

[0048] In this embodiment, the angle between the ramp structure and the horizontal direction is set at 45°, a design carefully considered. The 45° angle ensures smooth water flow while minimizing the potential threat of moisture to the device's interior. This angle is neither too steep, causing water to splash into the device due to excessive speed, nor too gentle, allowing moisture to easily accumulate on the ramp surface. Through numerous experiments and simulations, the 45° angle has proven effective in preventing moisture from entering the device from the bottom in most cases, providing reliable protection for the circuit board and other sensitive components. Furthermore, the 45° angle facilitates manufacturing.

[0049] In one embodiment, the top front edge portion of the middle frame 1 extends downward by at least 1 mm.

[0050] In this embodiment, the downward extension of the top front edge of the middle frame 1 further enhances the waterproof performance of the device. This extension acts as a barrier, effectively blocking rainwater falling from above and ensuring that rainwater cannot easily penetrate the device through the tiny gap between the middle frame 1 and the cover plate 2. Furthermore, this application sets the downward extension length of the top front edge of the middle frame 1 to at least 1 mm. This extension length is precisely calculated to provide sufficient waterproof protection without adversely affecting the overall structure and appearance of the device.

[0051] In one embodiment, the length of the portion of the stepped inner surface that contacts the inner surface of the back plate 3 is no more than 1 mm.

[0052] In this embodiment, the length of the portion of the stepped inner surface of the top of the middle frame 1 that contacts the inner surface of the back panel 3 is controlled to be no more than 1 mm. This design aims to ensure a tight fit while avoiding excessive material waste and structural complexity.

[0053] This application, by keeping the length of the contact area within 1mm, not only enhances the waterproof sealing of the device but also helps maintain the simplicity and efficiency of the overall structure. Furthermore, this compact design helps reduce the internal airflow space of the device, thereby reducing the impact of temperature fluctuations on sensor readings and improving the accuracy and stability of meteorological data detection.

[0054] In one embodiment, such as Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of a weather station data detection device with added solar panel 7 provided in an embodiment of this application; the device may also include a solar panel 7 installed in the cavity formed by the middle frame 1, the cover plate 2 and the back plate 3.

[0055] The solar panel 7 is disposed on the side near the cover plate 2, and the solar panel 7 is fixed near the top inner surface of the middle frame 1, and the circuit board 4 is fixed near the bottom inner surface of the middle frame 1.

[0056] In this embodiment, to further improve the practicality and endurance of the field weather station data detection device, a solar panel 7 is added inside the device. As a renewable energy utilization device, the solar panel 7 can convert solar energy into electrical energy, providing a continuous power supply to the circuit board 4 and its onboard sensors and other components, thereby ensuring long-term stable operation of the device in unattended field environments.

[0057] The solar panel 7 is cleverly positioned on one side near the cover plate 2 and fixed to the top inner surface near the middle frame 1. This layout design ensures that the solar panel 7 can receive sunlight to the maximum extent while avoiding interference with other components inside the device. At the same time, a certain distance can be maintained between the solar panel 7 and the cover plate 2 to ensure air circulation and prevent the heat generated by the solar panel 7 from affecting the internal temperature of the device.

[0058] Circuit board 4 is fixed to the bottom inner surface of the middle frame 1, forming a certain spatial gap with the solar panel 7. This layout not only facilitates heat dissipation of circuit board 4 but also makes it easier to maintain and replace it. Power can be transferred between circuit board 4 and solar panel 7 via wires or other connectors to enable the solar panel 7 to supply power to circuit board 4.

[0059] Furthermore, the solar panel 7 in this application is characterized by high efficiency, lightweight, and durability. It employs advanced solar energy conversion technology, enabling it to efficiently convert sunlight into electrical energy. Simultaneously, the weight and volume of the solar panel 7 are effectively controlled, without excessively impacting the overall structure and weight of the device. In addition, the solar panel 7 possesses excellent weather resistance and corrosion resistance, enabling long-term stable operation in harsh outdoor environments.

[0060] In one embodiment, the cover plate 2 is a transparent acrylic sheet.

[0061] In this embodiment, when a solar panel 7 is added inside the device, the cover plate 2 can be made of transparent acrylic sheet. Transparent acrylic sheet has good transparency and weather resistance, ensuring that the internal solar panel 7 and the sensors on the circuit board 4 can normally receive external light information (such as detecting solar radiation intensity), while effectively preventing rainwater and other external factors from directly contacting the circuit board and causing short circuits or damage. Simultaneously, transparent acrylic sheet also has high strength and toughness, capable of withstanding certain external impacts and protecting internal components from damage. This design allows the meteorological station data detection device to maintain high performance while also possessing good protective capabilities.

[0062] In one embodiment, the front of the solar panel 7 is attached to the inner surface of the cover plate 2, and the back of the solar panel 7 is attached to the overlapping portion of the surface of the circuit board 4.

[0063] In this embodiment, the front of the solar panel 7 is fitted to the inner surface of the cover plate 2. This design ensures that the solar panel 7 can receive sunlight transmitted through the cover plate 2 to the maximum extent, thereby improving the solar energy conversion efficiency. At the same time, the fitted arrangement also helps to enhance the waterproof performance of the device, preventing moisture from entering the device through the gap between the solar panel 7 and the cover plate 2.

[0064] Furthermore, this application also incorporates a bonding arrangement where the back of the solar panel 7 overlaps with the surface of the circuit board 4. This layout design achieves both the power supply function of the solar panel 7 to the circuit board 4 and ensures the compactness and stability of the internal structure of the device. This bonding arrangement reduces wasted space, allowing the device to maintain high performance while also possessing a small size and weight, making it easy to carry and install. Simultaneously, this design also helps improve the overall heat dissipation performance of the device, ensuring that components such as the circuit board 4 can operate at suitable temperatures, thus extending their service life.

[0065] In one embodiment, the cover plate 2 and / or the back plate 3 are transparent acrylic sheets.

[0066] In this embodiment, the cover plate 2 and / or the back plate 3 can also be made of transparent acrylic sheets. When the cover plate 2 is a transparent acrylic sheet, in addition to allowing the solar panel 7 to receive sunlight and protecting the internal components as mentioned above, it also makes some internal structures of the device (such as sensors) visible to the outside, facilitating observation and detection. This is particularly important for field weather station data detection devices, as users often need to quickly understand the working status of the device and the operation of the sensors without opening the device.

[0067] As another important component of the device, the backplate 3, when also made of transparent acrylic, further enhances the device's transparency and observability. Simultaneously, the transparent backplate 3 also provides some heat dissipation, helping to maintain a suitable operating temperature inside the device. Of course, in practical applications, the material selection for the cover plate 2 and backplate 3 needs to be carefully considered based on the specific usage environment and requirements to ensure the overall performance and reliability of the device.

[0068] In one embodiment, the thickness of the cover plate 2 and the back plate 3 is at least 1.8 mm.

[0069] In this embodiment, the thickness of the cover plate 2 and the back plate 3 is set to at least 1.8 mm. This design decision aims to enhance the robustness and durability of the device. The thicker cover plate 2 and back plate 3 can effectively resist external physical impacts, protecting the fragile internal components such as the circuit board 4 and sensors from damage. At the same time, sufficient thickness also provides better heat insulation and thermal insulation, helping to maintain a stable temperature environment inside the device and ensuring that the sensors can accurately and reliably detect meteorological data.

[0070] Furthermore, the 1.8mm thickness was carefully calculated and experimentally verified. It provides sufficient strength and stability without making the device excessively bulky or increasing unnecessary material costs. This design meets performance requirements while also considering economy and practicality, enabling the weather station data detection device to operate stably for extended periods in various field environments, providing users with accurate and reliable meteorological data support.

[0071] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0072] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referred to each other.

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A field weather station data detection device, characterized in that, The device includes a middle frame, a cover plate fixed to the front side of the middle frame, and a back plate fixed to the rear side of the middle frame. The top front edge of the middle frame extends downward along the outer surface of the cover plate, the top rear inner surface of the middle frame is stepped, and the top and bottom of the back plate are in contact with the top and bottom inner surfaces of the middle frame. A circuit board is installed in the cavity formed by the middle frame, the cover plate and the back plate. The circuit board is located on the side close to the cover plate, and a sensor for detecting meteorological data is attached to the surface of the circuit board. The bottom of the middle frame has an interface for connecting to the circuit board, and a drainage hole that is flush with the inner surface of the back plate.

2. The field weather station data detection device according to claim 1, characterized in that, The bottom outer surface of the middle frame near the edge of the cover plate has a sloping structure; The bottom of the cover plate extends at least 0.1 mm beyond the top of the ramp structure.

3. The field weather station data detection device according to claim 2, characterized in that, The slope structure makes an angle of 45° with the horizontal direction.

4. The field weather station data detection device according to claim 1, characterized in that, The top front edge of the middle frame extends downward by at least 1 mm.

5. The field weather station data detection device according to claim 1, characterized in that, The length of the portion of the stepped inner surface that contacts the inner surface of the back plate is no more than 1 mm.

6. The field weather station data detection device according to any one of claims 1-5, characterized in that, The device also includes a solar panel installed within the cavity formed by the middle frame, the cover plate, and the back plate; The solar panel is disposed on the side near the cover plate, and the solar panel is fixed near the top inner surface of the middle frame, while the circuit board is fixed near the bottom inner surface of the middle frame.

7. The field weather station data detection device according to claim 6, characterized in that, The cover plate is a transparent acrylic sheet.

8. The field weather station data detection device according to claim 6, characterized in that, The front of the solar panel is attached to the inner surface of the cover plate, and the back of the solar panel is attached to the overlapping portion of the surface of the circuit board.

9. The field weather station data detection device according to any one of claims 1-5, characterized in that, The cover plate and / or the back plate are transparent acrylic sheets.

10. The field meteorological station data detection device according to any one of claims 1-5, 7, and 8, characterized in that, The thickness of the cover plate and the back plate is at least 1.8 mm.

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