Miniaturized overheating hidden danger monitoring and early warning device

Abstract

The utility model relates to the technical field of system protection, in particular to a miniaturized overheating hidden danger monitoring and early warning device, which comprises a lower shell, a PCB (printed circuit board) and a detection module are mounted in the lower shell, an upper shell covers the lower shell, a screen mainboard is mounted on the upper shell and positioned above the PCB, and the detection module is mounted on the lower shell. The screen main board and the detection module are electrically connected with the PCB. According to the utility model, the fan and the detection module are arranged in the device, so that the problem of thermal runaway accidents of the electrical equipment caused by the fact that the safety monitoring and early warning device of the electrical equipment in the prior art does not have the safety monitoring and early warning effects is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to system protection technical field especially relates to a miniaturized overheat hidden danger monitoring and early warning device. BACKGROUND

[0002] With the economic development of our country, more and more electrical equipment, energy storage cabin, electrical cabinet and machine room data cabinet and other small closed place use needs more and more, frequency is higher and higher, after long time use, the battery and material in the equipment will continue to age, the system safety performance decreases, and the heat phenomenon occurs, and further leads to thermal runaway accident, even causes fire, and there is a security risk. Therefore, the safety prevention focus is to monitor the overheat hidden danger in the electrical equipment by using the monitoring device.

[0003] The monitoring device monitors and analyzes various equipment and systems in real time during use, mainly including temperature monitoring, gas monitoring, particle monitoring, etc. Particle monitoring refers to detecting small solid particles or smoke that may be generated when the system overheats or overheating events occur. These particles are usually caused by material combustion, thermal decomposition or other chemical reactions, and may be a precursor to fire. Particle monitoring plays an important role in fire hazard monitoring safety and thermal runaway and early warning.

[0004] Chinese patent CN114870296A discloses an electrical safety monitoring and early warning device, which comprises an electrical cabinet body, the electrical cabinet body comprises an electrical cabinet shell, a heat dissipation hole and a cabinet door, and the top of the electrical cabinet shell is provided with a supporting air bag. When a fire occurs, the air temperature in the electrical cabinet shell rises, the high-temperature airflow enters the supporting air bag, and the supporting air bag inflates and expands, the expanded supporting air bag pushes the movable shell upward, and the movable shell moves upward while being pushed, and the shielding part moves upward, so that the shielding part shields the opening of the heat dissipation hole, thereby sealing the inside of the electrical cabinet shell, preventing external air from flowing into the electrical cabinet shell, reducing the oxygen content of the air in the cabinet shell, and playing a role in fire extinguishing.

[0005] The above-mentioned patent only extinguishes the fire when a fire occurs, does not perform safety monitoring and early warning, and uses a gas cage to extinguish the fire, which is extremely dangerous and unacceptable. The occurrence of thermal runaway accidents without monitoring and early warning. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model aims to provide a miniaturized overheat hidden danger monitoring and early warning device, which solves the problem that the safety monitoring and early warning device of the electrical equipment in the prior art does not have the function of safety monitoring and early warning, thereby causing the electrical equipment to have a thermal runaway accident.

[0007] In order to achieve the above object, the utility model provides the following technical scheme:

[0008] A miniaturized overheat hidden danger monitoring and early warning device, including lower shell, install PCB circuit board and detection module in the lower shell, the upper cover of lower shell is equipped with upper shell, install screen mainboard on the upper shell, screen mainboard is located above PCB circuit board, screen mainboard and detection module all are electrically connected with PCB circuit board;

[0009] The detection module includes a detection module housing, a detection chamber is provided in the detection module housing, a fan chamber is also installed in the detection module housing, and a fan is installed in the fan chamber; a light source emitter is installed at one end of the detection chamber, a particle detector is installed in the middle of the detection chamber, a PCB detection board is also installed in the detection chamber, the PCB detection board is located above the light source emitter and the particle detector, and a sealed cover is provided on the detection chamber; the particle detector and the light source emitter are electrically connected with the PCB detection board, and the PCB detection board is electrically connected with the PCB circuit board; a first air nozzle is communicated on the fan chamber, the first air nozzle is communicated with a second air nozzle through a hose to form an air inlet channel, and the second air nozzle is communicated on the side wall of the detection chamber between the light source emitter and the particle detector.

[0010] Preferably, air inlet holes are provided on the side wall of the lower shell and the top of the upper shell, the air inlet holes are communicated with the fan chamber, and air hole cover plates are also connected on the air inlet holes.

[0011] Preferably, a third air nozzle is communicated on the detection chamber, the third air nozzle is communicated with a fourth air nozzle through a hose to form an air outlet channel, and the fourth air nozzle is communicated to the outside of the detection module housing.

[0012] Preferably, a light reflecting plate is also installed in the detection chamber, and the light reflecting plate is located on the side of the particle detector away from the light source emitter; a fixed pressing block is provided between the light source emitter and the PCB detection board, and the light source emitter is fixed in the detection chamber through the fixed pressing block.

[0013] Preferably, the light reflecting plate is provided with one or more, and the light reflecting plates are uniformly arranged around the side of the particle detector away from the light source emitter.

[0014] Preferably, a grating light plate is also provided on the inner side wall of the detection chamber on the side of the light reflecting plate, and the grating light plate reflects the light source of the light reflecting plate.

[0015] Preferably, a screen cover plate is connected on the upper shell, the screen cover plate is located directly above the screen mainboard, and a ventilation hole is also provided on the upper shell.

[0016] Preferably, a communication interface module is mounted on the PCB circuit board and electrically connected with the PCB circuit board; a communication interface slot corresponding to the communication interface module is formed on the lower shell, and the communication interface module is inserted into the communication interface slot.

[0017] Preferably, a gas sensor is further mounted on the PCB circuit board and electrically connected with the PCB circuit board.

[0018] Preferably, a buzzer is further mounted on the PCB circuit board and electrically connected with the PCB circuit board.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] (1) The monitoring and early warning device can be installed in a small device closed place such as an energy storage cabin, an electrical cabinet and a machine room data cabinet, air in the electrical equipment is sucked into the fan chamber through the rotation of the fan, and the air is sent into the detection chamber through the air inlet channel, laser irradiation is in the air, if there is a particle in the air, the laser beam will be scattered by these particles, the particle detector receives the scattered light signal and converts it into an electric signal for analyzing its intensity and mode to determine the concentration and size of the particles, which are displayed on the screen mainboard, this detection helps to monitor the solid characteristic product of material overheating decomposition, and the device is also provided with an air outlet channel, the air in the detection cavity is always flowing, so that real-time monitoring and analysis can be carried out, when the concentration and size of the particles reach a dangerous value, the buzzer buzzes to remind the staff to handle in time, and corresponding monitoring and control measures are taken, which is advanced, and the stability and safety of the equipment are indeed guaranteed, and the function of safety monitoring and early warning is realized.

[0021] (2) The reflecting plate and the grating light plate arranged in the detection chamber are used for reflecting the scattered light back to the detector, which can enhance the intensity of the light signal and improve the sensitivity and accuracy of particle detection. The reflecting plate and the grating light plate help to collect more scattered light, so that the particle concentration in the air can be measured more accurately.

[0022] (3) The gas sensor is further mounted on the PCB circuit board, when the gas concentration exceeds the safety threshold, the buzzer can be triggered to alarm, so as to prevent equipment damage or safety accidents. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the overall structure schematic view of the miniaturized overheating hidden danger monitoring and early warning device of the utility model;

[0024] Figure 2 is the explosion structure schematic view of the miniaturized overheating hidden danger monitoring and early warning device of the utility model;

[0025] Figure 3 is an explosion structure schematic diagram of the miniaturized overheating hidden danger monitoring and early warning device;

[0026] Figure 4 is a top view structure schematic diagram of the detection module of the miniaturized overheating hidden danger monitoring and early warning device;

[0027] Figure 5 is an explosion structure schematic diagram of the detection module of the miniaturized overheating hidden danger monitoring and early warning device;

[0028] Figure 6 is an explosion structure schematic diagram of the detection module of the miniaturized overheating hidden danger monitoring and early warning device.

[0029] In the figure: wherein: 100, lower shell; 200, PCB circuit board; 300, detection module; 400, upper shell; 500, screen mainboard; 110, air inlet hole; 120, air hole cover plate; 130, communication interface slot; 210, communication interface module; 220, gas sensor; 310, detection module shell; 320, detection chamber; 330, fan chamber; 340, airtight cover; 321, light source emitter; 322, particle detector; 323, PCB detection board; 324, third air nozzle; 325, reflector; 326, fixed pressing block, 327, grating light plate; 328, fourth air nozzle; 331, fan; 332, first air nozzle; 333 second air nozzle; 410, screen cover plate; 420, air hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] EMBODIMENT

[0032] As shown in Figures 1-6 A miniaturized overheating hidden danger monitoring and early warning device, comprising a lower shell 100, a PCB circuit board 200 and a detection module 300 are installed in the lower shell 100, an upper shell 400 is provided on the lower shell 100, a screen mainboard 500 is installed on the upper shell 400, the screen mainboard 500 is located above the PCB circuit board 200, and the screen mainboard 500 and the detection module 300 are electrically connected with the PCB circuit board 200;

[0033] The PCB circuit board is used for electric signal processing of the signal detected by the detection module 300, data conversion, and transmission to the screen mainboard 500 for display.

[0034] The detection module 300 comprises a detection module shell 310, a detection cavity 320 arranged in the detection module shell 310, and a fan cavity 330 arranged in the detection module shell 310, and a fan 331 arranged in the fan cavity 330; a light source emitter 321 is arranged at one end of the detection cavity 320, a particle detector 322 is arranged in the middle of the detection cavity 320, and a PCB detection plate 323 is further arranged in the detection cavity 320, the PCB detection plate 323 is arranged above the light source emitter 321 and the particle detector 322, and a sealing cover 340 is arranged on the detection cavity 320; the particle detector 322 and the light source emitter 321 are electrically connected with the PCB detection plate 323, and the PCB detection plate 323 is electrically connected with the PCB circuit board 200; a first air nozzle 332 is arranged on the fan cavity 330, the first air nozzle 332 is connected with a second air nozzle 333 through a hose to form an air inlet channel, and the second air nozzle 333 is arranged on the side wall of the detection cavity 320 between the light source emitter 321 and the particle detector 322.

[0035] The detection cavity 320 is used for detecting the gas, the fan cavity 330 is used for the flow transmission of the gas, in the running, the rotation of the fan 331 makes the gas in the electrical equipment enter into the detection cavity 320 from the fan cavity 330 through the air inlet channel, the light source emitted by the light source emitter 331 irradiates to the gas, the particles generated by the factors such as the insulation aging, failure of the electrical equipment, and the side reaction and chemical reaction in the charging and discharging process are dispersed in the gas, the light beam is scattered by the particles, the particle detector 322 receives the scattered light signal and converts it into an electric signal through the PCB detection plate 323, and then the PCB circuit board 200 analyzes the intensity and mode of the electric signal to determine the concentration and size of the particles, and the screen mainboard 500 displays the particles, this detection helps to monitor the solid characteristic product of the material overheating decomposition, and the device is also provided with an air outlet channel, the gas in the detection cavity 320 is always flowing, the electrical equipment and system can be monitored and analyzed in real time, and the safety monitoring function is realized. It should be noted that the light emitted by the light source emitter 331 is laser or LED light.

[0036] In the embodiment, the lower shell 100 side wall and the upper shell 400 top are both provided with air inlet holes 110, the air inlet holes 110 are communicated with the fan cavity 330, and the air inlet holes 110 are further buckled with air hole cover plates 120.

[0037] Fan chamber 330 opening air inlet hole 100 is convenient for external gas into, air hole cover plate 120 is used to prevent a large amount of dust from entering, it is convenient to clean.

[0038] In the embodiment, the third air nozzle 324 is communicated on the detection chamber 320, the third air nozzle 324 is communicated with the fourth air nozzle 328 through the hose to form the air outlet channel, and the fourth air nozzle 328 is communicated to the outside of the detection module shell 310.

[0039] The air outlet channel is used for discharging the gas detected in the detection cavity 320, so that the gas flows all the time, and the function of real-time monitoring of the electrical equipment is achieved.

[0040] In the embodiment, the detection chamber 320 is also provided with a light-reflecting plate 325, the light-reflecting plate 325 is located on the side of the particle detector 322 away from the light source emitter 321, the light source emitter 321 and the PCB detection plate 323 are provided with a fixed pressing block 326, and the light source emitter 321 is fixed in the detection chamber 320 through the fixed pressing block 326.

[0041] The light-reflecting plate 325 reflects the scattered light back to the particle detector 322, which can enhance the intensity of the light signal, improve the sensitivity and accuracy of particle detection, and the light-reflecting plate 325 helps to collect more scattered light, thereby more accurately measuring the particle concentration in the air.

[0042] In the embodiment, the light-reflecting plate 325 is provided with one or more, and the light-reflecting plate 325 is uniformly arranged around the side of the particle detector 322 away from the light source emitter 321.

[0043] In the embodiment, the detection chamber 320 is also provided with a grid light plate 327 on the inner side wall of the side of the light-reflecting plate 325, and the grid light plate 327 reflects the light source of the light-reflecting plate 325.

[0044] The grid light plate 327 further enhances the intensity of the light signal on the light-reflecting plate 325, and the sensitivity and accuracy of particle detection are greatly improved.

[0045] In the embodiment, the upper shell 400 is provided with a screen cover plate 410, the screen cover plate 410 is located directly above the screen mainboard 500, and the upper shell 400 is also provided with a ventilation hole 420.

[0046] The screen cover plate 410 is used for protecting the screen mainboard 500, preventing scratching and damage during use, and the ventilation hole 420 is used for equipment heat dissipation.

[0047] In the embodiment, the PCB circuit board 200 is provided with a communication interface module 210, the communication interface module 210 is electrically connected with the PCB circuit board 200, and the lower shell 100 is provided with a communication interface slot 130 corresponding to the communication interface module 210, and the communication interface module 210 is inserted into the communication interface slot 130.

[0048] In the embodiment, the PCB circuit board 200 is further provided with a gas sensor 220, and the gas sensor 220 is electrically connected with the PCB circuit board.

[0049] When the gas sensor 220 detects that the gas concentration exceeds a safety threshold, the buzzer can be triggered to alarm, so as to prevent equipment damage or safety accidents.

[0050] In the embodiment, the PCB circuit board 200 is further provided with a buzzer, and the buzzer is electrically connected with the PCB circuit board 200.

[0051] When the concentration and size of the particles reach a dangerous value, the buzzer buzzes to remind the staff to handle in time, so as to avoid the occurrence of thermal runaway and realize the function of safety monitoring and early warning.

[0052] The working principle of the miniaturized overheating hidden danger monitoring and early warning device is as follows:

[0053] In operation, the rotation of the fan 331 causes the gas in the device to flow from the air inlet hole 110 into the fan chamber 330, and then into the detection chamber 320 through the air inlet channel. When the particles generated by the factors such as battery aging, side reactions in the charging and discharging process, and thermal decomposition of electrical equipment are dispersed in the gas, the light beam will be scattered by these particles. The particle detector 322 receives the scattered light signal and converts it into an electrical signal through the PCB detection plate 323, and then analyzes the intensity and mode of the electrical signal by the PCB circuit board 200 to determine the concentration and size of the particles. The screen mainboard 500 displays the concentration and size of the particles. This detection helps to monitor the solid characteristic products of material overheating decomposition, and the device is also provided with an air outlet channel. The gas in the detection chamber 320 is always flowing, which can realize real-time monitoring and analysis of electrical equipment and systems, and realize the function of safety monitoring. When the concentration and size of the particles reach a dangerous value, the buzzer buzzes to remind the staff to handle in time, take corresponding monitoring and control measures, and maintain the stability and safety of the electrical equipment and systems.

[0054] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A miniaturized overheat hazard monitoring and warning device comprising a lower housing (100), characterized in that: The lower shell (100) is provided with a PCB circuit board (200) and a detection module (300), the upper shell (400) is arranged on the lower shell (100), the screen mainboard (500) is arranged on the upper shell (400), the screen mainboard (500) is arranged above the PCB circuit board (200), and the screen mainboard (500) and the detection module (300) are electrically connected with the PCB circuit board (200); The detection module (300) comprises a detection module shell (310), the detection module shell (310) is provided with a detection cavity (320), and the detection module shell (310) is further provided with a fan cavity (330); the fan cavity (330) is provided with a fan (331); the detection cavity (320) is provided with a light source emitter (321) at one end, a particle detector (322) is arranged in the middle of the detection cavity (320), and a PCB detection plate (323) is further arranged in the detection cavity (320); the PCB detection plate (323) is arranged above the light source emitter (321) and the particle detector (322), and a sealing cover (340) is arranged on the detection cavity (320); the particle detector (322) and the light source emitter (321) are electrically connected with the PCB detection plate (323), and the PCB detection plate (323) is electrically connected with the PCB circuit board (200); the fan cavity (330) is provided with a first air nozzle (332), the first air nozzle (332) is communicated with a second air nozzle (333) through a hose to form an air inlet channel, and the second air nozzle (333) is arranged on the side wall of the detection cavity (320) between the light source emitter (321) and the particle detector (322); The PCB circuit board (200) is further provided with a gas sensor (220), and the gas sensor (220) is electrically connected with the PCB circuit board (200).

2. The miniaturized overheat hazard monitoring and warning device according to claim 1, characterized in that The side wall of the lower shell (100) and the top of the upper shell (400) are provided with air inlet holes (110), the air inlet holes (110) are communicated with the fan cavity (330), and the air inlet holes (110) are further provided with air hole cover plates (120).

3. The miniaturized overheat hazard monitoring and warning device of claim 1, wherein: The detection cavity (320) is provided with a third air nozzle (324), the third air nozzle (324) is communicated with a fourth air nozzle (328) through a hose to form an air outlet channel, and the fourth air nozzle (328) is communicated to the outside of the detection module shell (310).

4. The miniaturized overheat hazard monitoring and warning device of claim 1, wherein: The detection cavity (320) is further provided with a reflecting plate (325), the reflecting plate (325) is arranged on the side of the particle detector (322) away from the light source emitter (321); the light source emitter (321) and the PCB detection plate (323) are provided with a fixed pressing block (326), and the light source emitter (321) is fixed in the detection cavity (320) through the fixed pressing block (326).

5. The miniaturized overheat hazard monitoring and warning device of claim 4, wherein: The light-reflecting plate (325) is provided with one or more light-reflecting plates (325) which are uniformly arranged around the particle detector (322) away from the light source emitter (321).

6. The miniaturized overheat hazard monitoring and warning device of claim 4, wherein: The inner side wall of the detection chamber (320) on one side of the light-reflecting plate (325) is further provided with a grid light plate (327), and the grid light plate (327) reflects the light source of the light-reflecting plate (325).

7. The miniaturized overheat hazard monitoring and warning device of claim 1, wherein: The upper shell (400) is provided with a screen cover plate (410) which is located directly above the screen main plate (500), and the upper shell (400) is further provided with a ventilation hole (420).

8. The miniaturized overheat hazard monitoring and warning device of claim 1, wherein: The PCB circuit board (200) is provided with a communication interface module (210) which is electrically connected with the PCB circuit board (200); the lower shell (100) is provided with a communication interface slot (130) corresponding to the communication interface module (210), and the communication interface module (210) is inserted into the communication interface slot (130).

9. The miniaturized overheat hazard monitoring and warning device of claim 1, wherein: The PCB circuit board (200) is further provided with a buzzer which is electrically connected with the PCB circuit board (200).

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