Self-adaptive flameout protection device adopting multi-sensor fusion technology

Abstract

The utility model belongs to the technical field of gas stoves, and discloses a self-adaptive flame-out protection device adopting a multi-sensor fusion technology, which comprises a device body and a dismounting piece, the device body comprises a shell and a rear cover, one side of the shell is provided with an opening, the rear cover is fixedly arranged at the opening of the shell through a screw, the dismounting piece comprises a connecting plate, and the connecting plate is fixedly connected with the shell. A V-shaped elastic clamping head is formed at one end of the connecting plate, a clamping block is formed at the other end of the connecting plate, a first clamping groove is formed in the upper end of one side of the shell, a second clamping groove is formed in the upper end of one side of the rear cover, the clamping block is inserted into the second clamping groove, and the V-shaped elastic clamping head is clamped in the first clamping groove. The V-shaped elastic clamping head and the clamping block of the disassembly and assembly piece are matched with the first clamping groove and the second clamping groove, and compared with a traditional screw fixing mode, rapid assembly and disassembly are achieved, and operation efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of gas stove technology, and in particular to an adaptive flameout protection device using multi-sensor fusion technology. Background Technology

[0002] Gas stoves, also known as gas cooktops, stove plates, stove platforms, or cooking appliances, are widely used and equipped with flameout protection devices.

[0003] Chinese utility model patent CN219713426U discloses a flameout protection device for a multi-zone combustion equipment. This device includes a main body containing a solenoid valve. The inlet of the solenoid valve is connected to the inlet pipe of the combustion equipment, and the outlet of the solenoid valve is connected to the outlet pipe of the combustion equipment. Multiple temperature probe interfaces are located at the bottom of the main body for connecting temperature sensors. A control system component is also located inside the main body, and the temperature probe interfaces are electrically connected to the control system component. A display device and an input device are located on one side of the main body. The display device, electrically connected to the control system component, displays the status of the temperature sensors and the operating status of the solenoid valve. The input device controls the opening and closing of the solenoid valve.

[0004] The aforementioned flameout protection device requires screws for fixing during use. When the device malfunctions, tools are needed to remove it for inspection and maintenance, which is inconvenient.

[0005] To address this, an adaptive flameout protection device employing multi-sensor fusion technology is proposed. Utility Model Content

[0006] The purpose of this invention is to provide an adaptive flameout protection device that employs multi-sensor fusion technology, thereby solving or at least mitigating one or more of the aforementioned problems and other issues existing in the prior art.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] An adaptive flameout protection device employing multi-sensor fusion technology includes a device body and detachable parts. The device body includes a housing and a rear cover. One side of the housing has an opening, and the rear cover is fixedly installed at the opening of the housing by screws.

[0009] The assembly / disassembly component includes a connecting plate, one end of which is formed with a V-shaped elastic clip, and the other end of which is formed with a clip. A first clip groove is formed on the upper side of one side of the housing, and a second clip groove is formed on the upper side of one side of the rear cover. The clip is inserted into the second clip groove, and the V-shaped elastic clip is engaged in the first clip groove.

[0010] In an adaptive flameout protection device employing multi-sensor fusion technology according to the present invention, the lower end of the card block is formed with a mounting plate, and the mounting plate is provided with mounting holes.

[0011] In an adaptive flameout protection device employing multi-sensor fusion technology according to the present invention, a paddle is formed at the end of the V-shaped elastic clip away from the connecting plate.

[0012] In an adaptive flameout protection device employing multi-sensor fusion technology according to the present invention, a chamfer is provided on the upper end of the side of the housing away from the rear cover.

[0013] According to the present invention, an adaptive flameout protection device employing multi-sensor fusion technology is provided, wherein the device body further includes a control circuit board and a solenoid valve. The solenoid valve and the control circuit board are both fixedly installed inside the housing. The air inlet and air outlet of the solenoid valve extend from the bottom of the housing. A wiring terminal for electrical connection with a flameout sensor on the stove is fixedly installed at the bottom of the housing. The wiring terminal and the electrical control terminal of the solenoid valve are both electrically connected to the control circuit board.

[0014] In an adaptive flameout protection device employing multi-sensor fusion technology according to the present invention, a battery is installed inside the housing, and the battery is electrically connected to the control circuit board.

[0015] In an adaptive flameout protection device employing multi-sensor fusion technology according to the present invention, a buzzer for indicating low battery power is installed inside the housing, and the buzzer is electrically connected to the control circuit board.

[0016] This utility model has at least the following beneficial effects:

[0017] By utilizing the V-shaped elastic clip head and clip block of the disassembly and assembly parts to cooperate with the first and second clip slots, compared with the traditional screw fixing method, rapid installation and disassembly are achieved, greatly improving the operation efficiency.

[0018] The combination of the control circuit board, solenoid valve, and wiring terminals allows for real-time reception of flameout sensor signals and rapid cut-off of gas supply. Compared to existing technologies, this provides a more timely response and effectively prevents the risk of gas leaks.

[0019] The built-in battery ensures that the device can still work normally without an external power source. Combined with the low battery warning function of the buzzer, it not only ensures the continuity of the flameout protection function, but also reminds the user to replace the battery in time to avoid device failure. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the rear cover structure of this utility model;

[0024] Figure 4 This is a structural schematic diagram of the disassembly and assembly parts of this utility model;

[0025] Figure 5 This is a circuit block diagram of the present invention.

[0026] Explanation of icon numbers:

[0027] 1. Housing; 101. First slot; 102. Chamfer; 103. Rear cover; 104. Second slot; 2. Solenoid valve; 3. Terminal block; 4. Buzzer; 5. Assembly / disassembly parts; 501. Connecting plate; 502. Locking block; 503. Mounting plate; 504. Mounting hole; 505. V-shaped elastic locking head; 506. Pulling block; 6. Control circuit board; 7. Battery. Detailed Implementation

[0028] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0029] Please refer to Figures 1 to 5As shown, an embodiment of this utility model provides an adaptive flameout protection device using multi-sensor fusion technology, including a device body and a disassembly / assembly component 5. The device body includes a housing 1 and a rear cover 103. One side of the housing 1 is open, and the rear cover 103 is fixedly installed at the opening of the housing 1 by screws. The disassembly / assembly component 5 includes a connecting plate 501. One end of the connecting plate 501 is formed with a V-shaped elastic clip 505, and the other end of the connecting plate 501 is formed with a clip 502. A first slot 101 is opened at the upper end of one side of the housing 1, and a second slot 104 is opened at the upper end of one side of the rear cover 103. The clip 502 is inserted into the second slot 104, and the V-shaped elastic clip 505 is locked in the first slot 101.

[0030] Working principle: The housing 1 and the rear cover 103 of the device body form a closed space to protect the internal components. The disassembly and assembly component 5 utilizes the insertion of the locking block 502 into the second locking slot 104 and the engagement of the V-shaped elastic locking head 505 into the first locking slot 101 to achieve quick installation and disassembly of the device. During installation, the locking block 502 is inserted into the second locking slot 104, and the V-shaped elastic locking head 505 is deformed under pressure and then locked into the first locking slot 101 to form a stable connection; during disassembly, force is applied to deform the V-shaped elastic locking head 505 and disengage it from the first locking slot 101, thus separating the device. Compared with traditional screw fixing, the operation is more convenient.

[0031] Furthermore, the lower end of the card block 502 is formed with a mounting plate 503, and the mounting plate 503 has mounting holes 504.

[0032] The mounting plate 503 and mounting hole 504 are designed so that the disassembly / assembly part 5 can be fixed by inserting bolts into the mounting hole 504.

[0033] Furthermore, a lever 506 is formed at the end of the V-shaped elastic clip 505 away from the connecting plate 501.

[0034] The lever 506 is designed to facilitate user operation of the V-shaped elastic clip 505. When disassembling the device, the user can directly lever 506 to deform the V-shaped elastic clip 505, making it easier to disassemble from the first slot 101, reducing the difficulty of disassembly and improving the convenience of operation.

[0035] Furthermore, a chamfer 102 is provided on the upper end of the side of the housing 1 away from the rear cover 103.

[0036] The chamfer 102 design optimizes the structure of the housing 1. During installation, the chamfer 102 can guide the V-shaped elastic clip 505 of the disassembly part 5 to smoothly enter the first slot 101, reducing installation resistance and avoiding damage to the parts due to edge friction, while also making the installation process smoother.

[0037] The device body also includes a control circuit board 6 and a solenoid valve 2. The solenoid valve 2 and the control circuit board 6 are both fixedly installed inside the housing 1. The air inlet and air outlet of the solenoid valve 2 extend from the bottom of the housing 1. A wiring terminal 3 for electrical connection with the flameout sensor on the stove is fixedly installed at the bottom of the housing 1. The wiring terminal 3 and the electrical control terminal of the solenoid valve 2 are both electrically connected to the control circuit board 6.

[0038] The flameout sensor on the stovetop is connected to the control circuit board 6 via terminal 3 to monitor the flame status in real time. When a flameout signal is detected, the sensor transmits the signal to the control circuit board 6. After processing and analyzing the signal, the control circuit board 6 sends a command to the solenoid valve 2 to close the gas inlet and cut off the gas supply, thereby realizing the flameout protection function and preventing gas leaks from causing safety accidents.

[0039] Furthermore, a battery 7 is installed inside the housing 1, and the battery 7 is electrically connected to the control circuit board 6.

[0040] Battery 7 powers the control circuit board 6, ensuring the device can operate normally without an external power source. Even in the event of a power outage or other emergencies, the control circuit board 6 can still receive signals from the flameout sensor and control the solenoid valve 2 to ensure the continuity and reliability of the flameout protection function.

[0041] Furthermore, a buzzer 4 for indicating low battery level of battery 7 is installed inside the housing 1, and the buzzer 4 is electrically connected to the control circuit board 6.

[0042] The control circuit board 6 monitors the battery power of the battery 7 in real time. When the battery power of the battery 7 is detected to be lower than the set threshold, the control circuit board 6 sends a signal to the buzzer 4, and the buzzer 4 sounds an alarm to remind the user to replace the battery 7 in time, so as to avoid the device from failing due to insufficient battery power and ensure that the flameout protection device is always available.

[0043] The control circuit board 6 has a single-chip microcomputer of model STC89C51. The solenoid valve 2 can be a gas safety solenoid valve of model SRT2032B, which is suitable for household gas stoves, powered by DC9-12V, with a closing response time of <50ms and an explosion-proof rating of ExdⅡBT4. The flameout sensor can be a K-type nickel-chromium-nickel-silicon thermocouple thermocouple flameout sensor (temperature range 0-1100℃, response time <3s, output potential is linearly related to temperature) or a SIEMENS SLGB21.331A2700 ion-sensing flameout sensor (based on the flame conductivity principle to detect flameout, response time <1s, strong anti-interference ability).

[0044] In addition, this device is also equipped with a gas concentration sensor and a temperature sensor, wherein:

[0045] Ionization sensor: Determines the presence of a flame by detecting charged particles in the flame (response time < 1 second).

[0046] Thermocouple sensor: Monitors changes in burner head temperature and distinguishes between normal combustion (high temperature stability) and accidental flameout (sudden temperature drop).

[0047] Gas concentration sensor: Real-time monitoring of gas concentration in the environment to prevent safety risks caused by pipeline leaks or incomplete combustion.

[0048] Temperature sensor: helps determine the working status of the stove and avoids fire caused by abnormal high temperature.

[0049] Adaptive protection mechanism

[0050] 1. Dynamic threshold adjustment

[0051] The sensor thresholds are automatically calibrated based on environmental parameters (such as altitude and temperature) to avoid false triggering.

[0052] Learn user habits (such as slow cooking mode) and reduce unnecessary protective actions.

[0053] 2. Fault Diagnosis and Redundancy Design

[0054] The sensor status is monitored in real time, and when a sensor fails, the weight of other sensors is automatically increased.

[0055] It adopts dual power supply (mains power + backup battery) to ensure normal operation during power outages.

[0056] 3. Tiered Response Strategy

[0057] Level 1 Alarm: Flame extinguished but temperature normal → prompt user for confirmation.

[0058] Level 2 Alarm: Flame extinguished and temperature abnormal → Immediately cut off gas supply and trigger alarm.

[0059] Level 3 alarm: Gas concentration exceeds standard → Gas supply will be forcibly cut off regardless of flame status.

[0060] 4. Hardware Collaboration Workflow

[0061] Signal acquisition:

[0062] The flameout sensor (ionization sensor / thermocouple) monitors the flame status in real time.

[0063] Gas concentration sensors detect the amount of gas in the environment.

[0064] Data processing:

[0065] The STC89C51 microcontroller receives sensor data and runs a fusion algorithm to calculate a risk score.

[0066] Execution control:

[0067] When a risk of flameout is detected, the microcontroller outputs a signal to drive the SRT2032B solenoid valve to close (response time <50ms).

[0068] The buzzer emits alarms at different frequencies to prompt the user to handle the abnormality.

[0069] The technological advantages are as follows:

[0070] Improved reliability:

[0071] Multi-sensor cross-validation reduces the false judgment rate of a single sensor (e.g., when an ion sensing sensor is affected by electromagnetic interference, a temperature sensor can assist in the judgment).

[0072] Enhanced security:

[0073] Simultaneously monitor flame status and gas leaks to prevent dual risks.

[0074] Backup batteries ensure protection is still available in extreme situations, such as power outages.

[0075] User experience optimization:

[0076] The adaptive algorithm reduces false triggers and avoids frequent interruptions to the cooking process.

[0077] Low battery warning and fault self-diagnosis functions reduce maintenance costs.

[0078] Compatibility design:

[0079] The modular disassembly and assembly structure (V-shaped flexible clamp head + clamp slot) supports quick replacement of parts, facilitating maintenance and upgrades.

[0080] This solution can be extended to industrial gas equipment, commercial kitchens, and other scenarios, achieving more comprehensive gas safety monitoring by adding pressure sensors, flow sensors, and other sensors.

[0081] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An adaptive flameout protection device employing multi-sensor fusion technology, characterized in that, The device includes a main body and a disassembly / assembly component (5). The main body includes a housing (1) and a rear cover (103). One side of the housing (1) is open. The rear cover (103) is fixedly installed at the opening of the housing (1) by screws. The disassembly / assembly component (5) includes a connecting plate (501), one end of which is provided with a V-shaped elastic clip (505), and the other end of which is provided with a clip (502). A first clip groove (101) is provided on the upper side of one side of the housing (1), and a second clip groove (104) is provided on the upper side of one side of the rear cover (103). The clip (502) is inserted into the second clip groove (104), and the V-shaped elastic clip (505) is clipped into the first clip groove (101).

2. The adaptive flameout protection device employing multi-sensor fusion technology according to claim 1, characterized in that: The lower end of the card block (502) is formed with a mounting plate (503), and the mounting plate (503) has mounting holes (504).

3. The adaptive flameout protection device employing multi-sensor fusion technology according to claim 2, characterized in that: The V-shaped elastic clip (505) has a paddle (506) formed at the end away from the connecting plate (501).

4. The adaptive flameout protection device employing multi-sensor fusion technology according to claim 3, characterized in that: The upper end of the housing (1) away from the rear cover (103) has a chamfer (102).

5. The adaptive flameout protection device employing multi-sensor fusion technology according to claim 1, characterized in that: The device body also includes a control circuit board (6) and a solenoid valve (2). The solenoid valve (2) and the control circuit board (6) are both fixedly installed inside the housing (1). The air inlet and air outlet of the solenoid valve (2) extend from the bottom of the housing (1). A wiring terminal (3) for electrical connection with the flameout sensor on the stove is fixedly installed at the bottom of the housing (1). The wiring terminal (3) and the electrical control terminal of the solenoid valve (2) are both electrically connected to the control circuit board (6).

6. The adaptive flameout protection device employing multi-sensor fusion technology according to claim 5, characterized in that: A battery (7) is installed inside the housing (1), and the battery (7) is electrically connected to the control circuit board (6).

7. An adaptive flameout protection device employing multi-sensor fusion technology according to claim 6, characterized in that: The housing (1) is equipped with a buzzer (4) for indicating that the battery (7) is low on power. The buzzer (4) is electrically connected to the control circuit board (6).

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