Weatherproof protective housing for particulate matter, humidity, and temperature sensors, ideal for indoor and outdoor use.

Description

1 / 5 “Weatherproof protective housing for particulate matter, humidity and temperature sensors, ideal for indoor and outdoor use” Utility Model Field

[0001] The present utility model is situated in the field of measurement and monitoring of data relating to particulate matter, humidity and temperature.

[0002] The main areas of application include the industrial sector, for particle monitoring in manufacturing and metallurgical industries; the educational sector, for particle monitoring inside classrooms and on university campuses; and the medical sector, for particle control in operating rooms, laboratories and outdoor areas with or without the influence of environmental weather. Description of the State of the Art

[0003] Air quality monitoring is a well-known and established science that began in the 1980s. At that time, the technology was quite limited and the solution used to quantify air pollution was complex, complicated, and very expensive.

[0004] Air quality monitoring is a well-established science, whose origins date back to the 1980s. At that time, the technology was quite limited, and the solutions used to quantify air pollution were complex, complicated, and extremely expensive.

[0005] Fortunately, with current technological advances, air quality monitoring tools have become not only more reliable but also faster at measuring. Furthermore, the devices are becoming smaller and more affordable, making the process more efficient and feasible than ever before.

[0006] Currently, sensors used to monitor air quality, especially particles such as PM10, PM2.5 and PM1 (μm), are susceptible to damage from adverse conditions such as drops, detachments and ingress of Petition 870250063307, dated 07 / 23 / 2025, page 6 / 13 2 / 5 water on the sensors, which can impair the accuracy of the data collected. Protective housings available on the market often lack the flexibility for local adaptations or are complex and expensive to manufacture, in addition to not being resistant in outdoor environments or in locations with adverse weather conditions.

[0007] Document RU2765335C1 discloses an air monitoring system. This system consists of a hermetically sealed box that offers a degree of protection for the contents inside.

[0008] Document CN110208877A concerns a handheld weather station. This handheld station has a structure resistant to harsh conditions.

[0009] Document CN112577868A discloses an air quality monitoring device with a waterproof structure.

[0010] Document CN208026709U discloses an air quality monitoring device. It has a dustproof and waterproof structure.

[0011] Document CN217605664U discloses an environmental monitoring device. The device has a waterproof housing.

[0012] Given the difficulties present in the aforementioned state of the art, the need arises to develop a technology capable of performing more efficiently. The aforementioned state of the art does not possess the unique characteristics that will be presented in detail below. Utility Model Objective

[0013] The goal is to provide a protective enclosure that can be easily manufactured by 3D printing. The modular design allows for customizations, such as adjusting shape and size, thickness, and material, according to specific installation and operational needs.

[0014] It is also an objective to provide a protective enclosure capable of withstanding harsh weather conditions and environmental elements, due to its mechanical strength, ventilation, sealing and IP66 rating (protection against dust and water jets), ease of access and mounting support. Petition 870250063307, dated 07 / 23 / 2025, page 7 / 13 3 / 5 Brief Description of the Utility Model

[0015] This utility model relates to a protective housing developed to house low-cost sensors intended for measuring particulate matter, humidity, and temperature. The utility model has applications in environmental monitoring and public health, protecting the sensors against physical damage and adverse conditions (e.g., rain, storms, wind, extreme cold, intense heat, frost, and snowstorms) without compromising the reliability (accuracy and precision) of the measurements. Brief Description of the Drawings

[0016] The present utility model will be described in more detail below, with reference to the attached figures which, in a schematic and non-limiting way of the inventive scope, represent examples of its embodiment. The drawings show: Figure 1 illustrates a 3D top view of the protective case, highlighting the lid and battery compartment; Figure 2 illustrates a detailed top view of the cover and battery; Figure 3 illustrates a bottom view of the case, showing the fit of the lid and the battery compartment; Figure 4 illustrates an oblique view, highlighting the internal arrangement of the sensors; Figure 5 illustrates a perspective view, emphasizing the ventilation openings. Detailed Description of the Utility Model

[0017] Below is a detailed description of a preferred embodiment of the present utility model, which is exemplary and in no way limiting. Nevertheless, it will become clear to a person skilled in the art, from reading this description, that there are possible additional embodiments of the present utility model, which are still included in the essential and optional characteristics below. Petition 870250063307, dated 07 / 23 / 2025, page 8 / 13 4 / 5

[0018] The protective housing has a main structure that encloses the sensor and includes strategically positioned openings to ensure adequate air circulation, providing accuracy and precision in measurements while protecting against dust, moisture, storms and other external elements. The model is compatible with various types of installation surfaces, and can be mounted on walls, ceilings or specific structures.

[0019] The protective case is able to withstand harsh weather conditions and environmental elements due to its mechanical strength, ventilation, sealing, and IP66 rating (protection against dust and water jets), ease of access, and mounting support.

[0020] As illustrated, the box (1) is made of resistant material, preferably high durability polymers, which can be easily molded by 3D printing. The main structure (2) is designed to accommodate sensors of different sizes, with an adjustable internal support (3) that ensures the secure fixation of these sensors.

[0021] The ventilation openings (4) are optimally arranged to maximize air intake, allowing accurate measurements of air quality, humidity and temperature, while protecting the sensor from solid particles, water and other external interference.

[0022] The modular design of the case allows for customizations for various applications, whether indoors or outdoors, ensuring robustness even in adverse conditions, such as storms and severe weather changes.

[0023] Installation is simple and versatile, using supports or fasteners (5) suitable for flat or inclined surfaces. The model can also be integrated into existing monitoring systems, thanks to the design flexibility provided by 3D printing.

[0024] The box (1) has the capacity to allocate an Arduino in a location (6) fixed by the supports or fasteners (5). Petition 870250063307, dated 07 / 23 / 2025, page 9 / 13 5 / 5

[0025] The box also has a hole (7) in one of the halves of the main structure (2) for the inclusion of an on / off button for the system containing the particulate matter, humidity and temperature sensors.

[0026] The box (1) also has an opening (8) for placing a battery to power the system. To cover said battery, a cover plate (9) is required.

[0027] The functionality of the protective housing is based on the controlled air intake through the ventilation openings (4), which prevents the infiltration of solid particles and moisture, ensuring durability, accuracy and reliability of the sensors over time. Petition 870250063307, dated 07 / 23 / 2025, page 10 / 13

Claims

1 / 2 Claims 1- WEATHER-RESISTANT PROTECTIVE BOX, characterized by the box (1) comprising a main structure (2), an adjustable internal support (3), ventilation openings (4), supports or fasteners (5), location (6), a hole (7), an opening (8) and a cover plate (9). 2- BOX, according to claim 1, characterized in that the box (1) is made of resistant material, preferably high durability polymers. 3- BOX, according to claim 2, characterized in that the box (1) can be manufactured by 3D printing. 4- BOX, according to claim 1, characterized by the main structure (2) comprising an adjustable internal support (3) for secure attachment of the sensors. 5- BOX, according to claim 1, characterized by allowing customizations for various applications, whether internal or external. 6- BOX, according to claim 1, characterized by withstanding severe storms and weather changes. 7- BOX, according to claim 6, characterized in that the box (1) has an IP66 rating. 8- BOX, according to claim 1, characterized in that the supports or fasteners (5) are suitable for installing the box (1) on flat or inclined surfaces. 9- BOX, according to claim 1, characterized by the possibility of the box (1) being integrated into existing monitoring systems. 10- BOX, according to claim 1, characterized by the location (6) allocating an Arduino and being fixed by the supports or fasteners (5). 11- BOX, according to claim 1, characterized by the hole (7) being present in one of the halves of the main structure (2) for the inclusion of an on / off button. Petition 870250004672, dated 21 / 01 / 2025, page 10 / 19 2 / 2 12- BOX, according to claim 1, characterized in that the box (1) has an opening (8) and a cover plate (9) for housing a battery. Petition 870250004672, dated 21 / 01 / 2025, page 11 / 19

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