A modular monitoring device with temperature and humidity and smoke alarm function

Abstract

The utility model relates to a modular monitoring equipment with temperature and humidity and smoke alarm function, including installation base, casing frame and monitoring module, the installation base is circular structure, and the even installation seat is installed on the installation base, and the casing frame is fixedly installed in the installation base lower extreme, and the casing frame inside is installed with monitoring module, and the monitoring module is used for monitoring temperature and humidity and smoke, the utility model discloses the modular layout of main control circuit, temperature and humidity sensor, smoke sensor, combines the design of special heat conduction hole and heat conduction sheet, establishes independent efficient radiating path for the electronic component of heating, and the circuit heat source is isolated with temperature sensor, effectively avoids the'heat pollution'problem caused by the equipment own work heat, ensures the authenticity and accuracy of temperature monitoring result.

Description

Technical Field

[0001] This application relates to the field of smoke monitoring technology, and in particular to a modular monitoring device with temperature, humidity and smoke alarm functions. Background Technology

[0002] Fire and abnormal environmental conditions are among the main threats to personnel and property safety. Therefore, monitoring equipment capable of real-time and accurate monitoring of ambient temperature, humidity, and smoke concentration has been widely used in smart homes, industrial sites, and warehousing and logistics. Currently, most environmental monitoring equipment on the market integrates temperature and humidity sensors with smoke sensors into a single design. However, in practical applications, such equipment still suffers from several significant technical shortcomings, severely challenging its monitoring accuracy, reliability, and lifespan:

[0003] First, regarding sensing accuracy, existing equipment faces serious environmental interference problems. Firstly, temperature and humidity sensors are highly susceptible to contamination by particulate matter such as dust and fibers floating in the environment. These contaminants adhere to the surface of the sensor's sensitive elements, leading to decreased sensitivity, measurement drift, and even permanent damage, resulting in distorted monitoring data. Secondly, the working principle of traditional smoke sensors (especially photoelectric types) dictates that they cannot effectively distinguish between fire smoke particles and interfering particles such as dust, water vapor, and mist. Therefore, the false alarm rate is extremely high in complex environments such as kitchens, bathrooms, and dusty workshops, severely reducing the reliability of the equipment.

[0004] Secondly, in terms of equipment structure, internal interference and thermal management issues are prominent. Conventional integrated designs place the heat-generating electronic control unit and the sensitive temperature and humidity sensors in close proximity within a confined space. The heat generated by the circuit board during long-term operation is difficult to dissipate, and the resulting heat accumulation directly affects the temperature sensor's measurement value, causing "thermal pollution" and resulting in the monitored ambient temperature always being higher than the actual value.

[0005] Integrated environmental monitoring equipment that is highly reliable and easy to maintain, designed to address complex environmental interference, aims to overcome the technical bottlenecks of existing products in terms of accuracy, false alarm rate, and long-term stability. Utility Model Content

[0006] To address the problems existing in the background technology, this utility model proposes a modular monitoring device with temperature, humidity and smoke alarm functions.

[0007] The modular monitoring device with temperature, humidity, and smoke alarm functions provided in this application adopts the following technical solution:

[0008] A modular monitoring device with temperature, humidity and smoke alarm functions includes a mounting base, a housing frame and a monitoring module. The mounting base has a circular structure and mounting seats are evenly installed on the mounting base. The housing frame is fixedly installed at the lower end of the mounting base. The monitoring module is installed inside the housing frame and is used to monitor temperature, humidity and smoke.

[0009] The monitoring module is configured with an air intake chamber between its right side and the housing frame, and an exhaust chamber between its left side and the housing frame. The housing frame has grille holes on both sides that communicate with the air intake chamber and the exhaust chamber. The air intake chamber and the exhaust chamber are filled with filter sponge.

[0010] Furthermore, the monitoring module includes a partition, a temperature sensor, a humidity sensor, a smoke sensor, and a filter assembly. The partition is fixedly installed in the middle of the housing frame, and a mounting cavity is formed between the lower end of the partition and the housing frame. A circuit board and a controller are installed inside the mounting cavity. The temperature sensor and humidity sensor are installed at the upper end of the partition, and the smoke sensor is installed at the lower end of the housing frame. The temperature sensor, humidity sensor, and smoke sensor are electrically connected to the controller. The filter assembly is installed at the upper end of the partition, and the temperature sensor and humidity sensor are located inside the filter assembly.

[0011] Furthermore, the smoke sensor is a dual-source photoelectric smoke sensor, which includes a reference light source and a detection light source.

[0012] Furthermore, a heat-conducting hole is installed between the mounting cavity and the exhaust cavity, and a heat-conducting plate is installed on the heat-conducting hole.

[0013] Furthermore, the filter assembly includes a filter frame, a rotating shaft, a filter screen, and an intake fan. The filter frame is fixedly installed on the upper end of the partition plate. The filter frame has a rectangular hollow structure. Rotating shafts are evenly installed on the filter frame via pins. Filter screens are arranged between the outer sides of the rotating shafts. The rotating shafts can drive the filter screens to rotate. An air inlet is opened on the right side of the filter frame. An intake fan is installed at the front end of the air inlet. An exhaust port is opened on the left side of the filter frame.

[0014] Furthermore, a cleaning frame is evenly installed on the exhaust port. The cleaning frame has a conical cross-section and brush bristles are evenly arranged on the inner side of the cleaning frame.

[0015] Beneficial effects

[0016] Compared with the prior art, this utility model provides a modular monitoring device with temperature, humidity and smoke alarm functions, which has the following beneficial effects:

[0017] 1. This utility model, through the setting of an air intake chamber, a filter sponge, and a filter assembly, constitutes a multi-stage progressive filtration system, and provides encapsulated protection for the temperature and humidity sensor. This effectively isolates dust, fibers, and other particulate pollutants from direct contact with the sensor elements, fundamentally avoiding problems such as measurement drift and decreased sensitivity caused by sensor contamination, and ensuring the long-term accuracy and stability of temperature and humidity monitoring data.

[0018] 2. This utility model adopts a dual-source photoelectric smoke sensor and its unique signal processing algorithm. By collecting the detection signal and the reference signal in a time-division manner and making a ratio judgment, the device has the ability to intelligently distinguish between fire smoke and interfering particles such as dust and water vapor, which greatly reduces the false alarm rate in complex environments and improves the reliability of the alarm.

[0019] 3. This utility model, through modular layout (physically separating the main control circuit, temperature and humidity sensor, and smoke sensor) combined with dedicated heat-conducting holes and heat-conducting sheets, establishes an independent and efficient heat dissipation path for the heat-generating electronic components, isolates the circuit heat source from the temperature sensor, effectively avoids the "thermal pollution" problem caused by the heat generated by the device itself, and ensures the authenticity and accuracy of the temperature monitoring results.

[0020] 4. In this utility model, the filter assembly adopts a unique rotatable filter screen design and is equipped with a cleaning frame and brush bristles. When the equipment is working, the filter screen rotates continuously at a uniform speed. When its surface passes through the exhaust port, it is subjected to the back-blowing effect of the airflow and is simultaneously physically brushed by the brush bristles of the cleaning frame. This dynamic self-cleaning mechanism can automatically remove impurities attached to the filter screen, solving the problem of easy clogging and frequent manual cleaning of traditional static filter screens, improving the long-term operational stability of the equipment, and reducing the maintenance cost throughout the entire life cycle. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a three-dimensional structural diagram of this application.

[0023] Figure 2 This is a three-dimensional structural diagram of the housing frame and the monitoring module in this application.

[0024] Figure 3 This is a cross-sectional structural diagram of the housing frame and the monitoring module in this application.

[0025] Figure 4 This is a first three-dimensional structural diagram of the filtering component of this application.

[0026] Figure 5 This is a second three-dimensional structural diagram of the filtering component of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Mounting base; 2. Housing frame; 21. Grille hole; 22. Filter sponge; 3. Monitoring module; 31. Partition; 32. Temperature sensor; 33. Humidity sensor; 34. Smoke sensor; 341. Reference light source; 342. Detection light source; 35. Filter assembly; 351. Filter frame; 352. Rotating shaft; 353. Filter screen; 354. Intake fan; 355. Cleaning rack. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-5 The present invention provides a modular monitoring device with temperature, humidity and smoke alarm functions, including a mounting base 1, a housing frame 2 and a monitoring module 3. The mounting base 1 has a circular structure and mounting seats are evenly installed on the mounting base 1. The housing frame 2 is fixedly installed at the lower end of the mounting base 1. The monitoring module 3 is installed inside the housing frame 2. The monitoring module 3 is used to monitor temperature, humidity and smoke.

[0030] The monitoring module 3 is configured with an air intake chamber between its right side and the housing frame 2, and an exhaust chamber between its left side and the housing frame 2. The housing frame 2 has grille holes 21 on both sides that communicate with the air intake chamber and the exhaust chamber. The air intake chamber and the exhaust chamber are filled with filter sponges 22.

[0031] In the above technical solution, when monitoring temperature and humidity, the gas in the air enters the air intake chamber through the grille hole 21 on the right side of the housing frame 2. The filter sponge 22 can perform preliminary filtration of the gas. The filtered gas enters the monitoring module 3, thereby realizing the function of monitoring the temperature and humidity in the air. The detected gas is then discharged through the grille hole 21 on the left side of the housing frame 2. At the same time, the monitoring module 3 can also realize the function of monitoring smoke.

[0032] See Figures 1-3As shown, in a preferred embodiment, the monitoring module 3 includes a partition 31, a temperature sensor 32, a humidity sensor 33, a smoke sensor 34, and a filter assembly 35. The partition 31 is fixedly installed in the middle of the housing frame 2. The lower end of the partition 31 and the housing frame 2 are configured as an installation cavity. A circuit board and a controller are installed inside the installation cavity. The temperature sensor 32 and the humidity sensor 33 are installed on the upper end of the partition 31. The smoke sensor 34 is installed on the lower end of the housing frame 2. The temperature sensor 32, the humidity sensor 33, and the smoke sensor 34 are electrically connected to the controller. The filter assembly 35 is installed on the upper end of the partition 31. The temperature sensor 32 and the humidity sensor 33 are located inside the filter assembly 35.

[0033] In the above technical solution, the temperature sensor 32 and the humidity sensor 33 are wrapped in the middle of the filter assembly 35. When the air enters the air intake chamber, the filter sponge 22 performs initial filtration of the air, and the filter assembly 35 can perform secondary filtration of the air to remove large particulate impurities in the air, avoid the accumulation of particulate impurities from affecting the accuracy of the sensors, and improve the accuracy of temperature and humidity monitoring.

[0034] See Figure 3 As shown, as a preferred technical solution in this embodiment, the smoke sensor 34 is a dual-source photoelectric smoke sensor, which includes a reference light source 341 and a detection light source 342.

[0035] In the above technical solution, when monitoring smoke, the detection light source 342 is turned on and the reference light source 341 is turned off, and the result is recorded as a detection signal; the reference light source 341 is turned on and the detection light source 342 is turned off, and the result is recorded as a reference signal.

[0036] If both the detection signal and the reference signal are close to zero (with only very weak noise), it is considered normal, and monitoring continues.

[0037] If the detected signal is much larger than the reference signal and exceeds the preset threshold, it is determined to be a fire and an alarm is issued.

[0038] If the detection signal and the reference signal increase at almost the same rate and remain within the "safe range", it is determined to be interference, and the alarm is suppressed.

[0039] As a preferred technical solution in this embodiment, a heat-conducting hole is installed between the mounting cavity and the exhaust cavity, and a heat-conducting plate is installed on the heat-conducting hole.

[0040] In the above technical solution, the heat-conducting sheet can conduct heat from inside the mounting cavity to inside the exhaust cavity, thereby avoiding heat accumulation inside the mounting cavity and preventing heat from affecting the temperature sensor 32.

[0041] See Figures 3-5As shown, as a preferred technical solution of this embodiment, the filter assembly 35 includes a filter frame 351, a rotating shaft 352, a filter screen 353, and an intake fan 354. The filter frame 351 is fixedly installed on the upper end of the partition plate 31. The filter frame 351 has a rectangular hollow structure. The rotating shaft 352 is evenly installed on the filter frame 351 through pins. The filter screen 353 is arranged between the outer sides of the rotating shaft 352. The rotating shaft 352 can drive the filter screen 353 to rotate. An air inlet is opened on the right side of the filter frame 351. An intake fan 354 is installed at the front end of the air inlet. An exhaust port is opened on the left side of the filter frame 351.

[0042] In the above technical solution, when the intake fan 354 is working, air enters through the grille hole 21 on the right side of the housing frame 2. The filter screen 353 filters the air to prevent dust, particles and other impurities in the air from entering and adhering to the temperature sensor 32 and humidity sensor 33, ensuring that the temperature sensor 32 and humidity sensor 33 are not interfered with and improving the accuracy of temperature and humidity monitoring.

[0043] The rotating shaft 352 is connected to the output end of the motor. The rotating shaft 352 can drive the filter screen 353 to rotate at a constant speed. When the filter screen 353 rotates from the air inlet side to the exhaust side, the gas entering the filter frame 351 will backflush the filter screen 353 on the exhaust side, thereby avoiding the accumulation of impurities and preventing the filter screen 353 from becoming clogged, thus improving the filtration efficiency.

[0044] See Figure 5 As shown, in this preferred embodiment, a cleaning frame 355 is evenly installed on the exhaust port. The cleaning frame 355 has a conical cross-section and brush bristles are evenly arranged on the inner side of the cleaning frame 355.

[0045] In the above technical solution, when the filter screen 353 is rotating at a constant speed, the bristles on the cleaning frame 355 can brush the outer surface of the filter screen 353, and the cleaning frame 355 can further clean the filter screen 353 to ensure that the impurities adhering to the filter screen 353 can be removed.

[0046] The working principle of this utility model is as follows:

[0047] S1: Ambient gas sampling and primary filtration

[0048] Under the active suction of the intake fan 354, ambient air is drawn into the intake chamber through the grille hole 21 on the right side of the housing frame 2. The filter sponge 22 filled in the intake chamber performs primary filtration of large particles of dust, fibers and other impurities in the air. The gas after preliminary purification flows to the monitoring module 3.

[0049] S2: Active air supply and precise temperature and humidity monitoring

[0050] Driven by the intake fan 354, the gas that has undergone primary filtration enters the filter assembly 35 through the air inlet on the right side of the filter frame 351. The clean air after secondary filtration by the filter screen 353 smoothly surrounds the temperature sensor 32 and the humidity sensor 33, enabling them to accurately measure the temperature and humidity parameters of the current environment and effectively avoiding interference from particulate impurities on the accuracy of the sensors.

[0051] S3: Intelligent Smoke Detection and Interference Detection

[0052] The smoke sensor 34 is independently located at the bottom of the device and continuously monitors the ambient air. It adopts a dual-source photoelectric detection principle: the microcontroller controls the detection light source 342 and the reference light source 341 to work in a time-division manner, and collects the corresponding scattered light signals. The ratio of the two signals is calculated by an algorithm.

[0053] If the detected signal is much larger than the reference signal and exceeds the threshold, it is determined to be real fire smoke, and an alarm is triggered immediately.

[0054] If both signals increase proportionally, it is determined to be interference from dust, water vapor, etc., and the system suppresses the alarm, thereby greatly reducing the false alarm rate.

[0055] S4: Thermal Management and Self-Cleaning Cycle

[0056] During operation, the heat generated by the circuit board inside the mounting cavity is conducted to the exhaust cavity through the heat-conducting plate and heat-conducting holes, and carried away by the flowing air, forming active heat dissipation to prevent heat accumulation from affecting the measurement accuracy of the temperature sensor 32. At the same time, the motor drives the rotating shaft 352 to rotate the filter screen 353 at a uniform speed, and the bristles on the cleaning frame 355 continuously brush the filter screen. When the filtered impurities rotate to the exhaust port side, they are automatically detached by the back-blowing effect of the airflow, completing the self-cleaning cycle and ensuring the long-term stable operation of the filtration system. The detected gas is finally discharged through the left grille hole 21.

[0057] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A modular monitoring device with temperature, humidity, and smoke alarm functions, characterized in that, It includes a mounting base (1), a housing frame (2) and a monitoring module (3). The mounting base (1) has a circular structure and mounting seats are evenly installed on the mounting base (1). The housing frame (2) is fixedly installed at the lower end of the mounting base (1). The monitoring module (3) is installed inside the housing frame (2). The monitoring module (3) is used to monitor temperature, humidity and smoke. The monitoring module (3) is configured with an air intake chamber between its right side and the housing frame (2), and an exhaust chamber between its left side and the housing frame (2). The housing frame (2) has grille holes (21) on both sides that communicate with the air intake chamber and the exhaust chamber. The air intake chamber and the exhaust chamber are filled with filter sponges (22).

2. The modular monitoring device with temperature, humidity, and smoke alarm functions according to claim 1, characterized in that: The monitoring module (3) includes a partition (31), a temperature sensor (32), a humidity sensor (33), a smoke sensor (34), and a filter assembly (35). The partition (31) is fixedly installed in the middle of the housing frame (2). The lower end of the partition (31) and the housing frame (2) are configured as an installation cavity. A circuit board and a controller are installed inside the installation cavity. The temperature sensor (32) and the humidity sensor (33) are installed on the upper end of the partition (31). The smoke sensor (34) is installed on the lower end of the housing frame (2). The temperature sensor (32), the humidity sensor (33), and the smoke sensor (34) are electrically connected to the controller. The filter assembly (35) is installed on the upper end of the partition (31). The temperature sensor (32) and the humidity sensor (33) are located inside the filter assembly (35).

3. A modular monitoring device with temperature, humidity, and smoke alarm functions according to claim 2, characterized in that: The smoke sensor (34) is a dual-source photoelectric smoke sensor, which includes a reference light source (341) and a detection light source (342).

4. A modular monitoring device with temperature, humidity, and smoke alarm functions according to claim 3, characterized in that: A heat-conducting hole is installed between the mounting cavity and the exhaust cavity, and a heat-conducting plate is installed on the heat-conducting hole.

5. A modular monitoring device with temperature, humidity, and smoke alarm functions according to claim 2, characterized in that: The filter assembly (35) includes a filter frame (351), a rotating shaft (352), a filter screen (353), and an intake fan (354). The filter frame (351) is fixedly installed on the upper end of the partition (31). The filter frame (351) has a rectangular hollow structure. The rotating shaft (352) is evenly installed on the filter frame (351) through pins. The filter screen (353) is arranged between the outer sides of the rotating shaft (352). The rotating shaft (352) can drive the filter screen (353) to rotate. An air inlet is opened on the right side of the filter frame (351). An intake fan (354) is installed at the front end of the air inlet. An exhaust port is opened on the left side of the filter frame (351).

6. A modular monitoring device with temperature, humidity, and smoke alarm functions according to claim 5, characterized in that: A cleaning frame (355) is evenly installed on the exhaust port. The cleaning frame (355) has a tapered cross-section and brush bristles are evenly arranged on the inner side of the cleaning frame (355).

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