Flameout protection device with touch emergency function

Abstract

The utility model discloses a flameout protection device with a touch emergency function, and belongs to the technical field of gas equipment. Comprising a DC / DC step-down power circuit (1) and further comprises a single chip microcomputer control circuit (2), an ignition circuit (3), a touch circuit (4), a flame detection circuit (5), an electromagnetic valve control circuit (6) and an electromagnetic valve (7), the output end of the DC / DC step-down power circuit (1) is connected with the input end of the single chip microcomputer control circuit (2), and an ignition needle and an induction needle of the device are fixedly installed in a combustion chamber. The ignition and detection effects of the device are improved; the touch switch of the device is connected with the touch circuit, one-key ignition can be achieved through touch starting, the emergency function can be started through long-time touch and continuous pressing, the convenience of the device is improved, and emergency use can be achieved when the device breaks down.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas equipment, and in particular relates to a flameout protection device with touch emergency function. Background Art

[0002] Commercial gas stoves are cooking equipment suitable for large kitchens in hotels, restaurants, and canteens of major government agencies, schools, and construction sites. Commercial stoves usually provide ignition and valve opening functions. The igniter is generally a pulse igniter. The pulse igniter is a pulse high-frequency oscillator composed of electronic components. The high-frequency voltage generated by the oscillator is boosted by a step-up transformer to generate a high voltage, and the tip discharge is performed. The spark of the discharge ignites the gas on the gas stove. This pulse igniter can discharge continuously and has a good ignition effect. However, the flameout protection of commercial stoves currently in the market is prone to flameout in the middle if the induction needle fails or the flame detection circuit fails. When the customer uses it, the fault cannot burn normally and can only give up using it. Therefore, our company proposed a flameout protection device with touch emergency. To solve the above problems. Summary of the invention

[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a flameout protection device with touch emergency function.

[0004] The above technical problems of the utility model are mainly solved by the following technical solutions: a flameout protection device with touch emergency, including a DC / DC step-down power supply circuit, and also including a single-chip control circuit, an ignition circuit, a touch circuit, a flame detection circuit, a solenoid valve control circuit and a solenoid valve, the output end of the DC / DC step-down power supply circuit is connected to the input end of the single-chip control circuit, the output end of the single-chip control circuit is connected to the input end of the ignition circuit, the output end of the flame detection circuit, the input end of the touch circuit, and the input end of the solenoid valve control circuit, and the output end of the solenoid valve control circuit is connected to the solenoid valve.

[0005] Preferably, the touch circuit includes a touch switch, and the input end of the touch circuit is connected to the touch switch.

[0006] Preferably, the ignition circuit comprises an ignition needle, and the output end of the ignition circuit is connected to the ignition needle.

[0007] Preferably, the flame detection circuit comprises a sensing needle, and the input end of the flame detection circuit is connected to the sensing needle.

[0008] The utility model has the beneficial effects:

[0009] 1. The ignition needle and the sensing needle of the device are installed and fixed to the combustion chamber, which improves the ignition and detection effects of the device;

[0010] 2. The touch switch of the device is connected to the touch circuit, which can be started by touch to achieve one-key ignition, and can also be long-touched and continuously pressed to start the emergency function, which improves the convenience of the device and the convenience of emergency use in case of failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] In the figure: 1. DC / DC step-down power supply circuit; 2. Single-chip microcomputer control circuit; 3. Ignition circuit; 4. Touch circuit; 5. Flame detection circuit; 6. Solenoid valve control circuit; 7. Solenoid valve; 8. Touch switch; 9. Ignition needle; 10. Induction needle. DETAILED DESCRIPTION

[0013] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0014] Embodiment: A flameout protection device with touch emergency, such as Figure 1 As shown, it includes a DC / DC step-down power supply circuit 1, which is characterized in that it also includes a single-chip control circuit 2, an ignition circuit 3, a touch circuit 4, a flame detection circuit 5, a solenoid valve control circuit 6 and a solenoid valve 7, the output end of the DC / DC step-down power supply circuit 1 is connected to the input end of the single-chip control circuit 2, the output end of the single-chip control circuit 2 is connected to the input end of the ignition circuit 3, the output end of the flame detection circuit 5, the input end of the touch circuit 4, and the input end of the solenoid valve control circuit 6, and the output end of the solenoid valve control circuit 6 is connected to the solenoid valve 7.

[0015] The touch circuit 4 includes a touch switch 8, the input end of the touch circuit 4 is connected to the touch switch 8, the ignition circuit 3 includes an ignition pin 9; the output end of the ignition circuit 3 is connected to the ignition pin 9, the flame detection circuit 5 includes a sensing pin 10; the input end of the flame detection circuit 5 is connected to the sensing pin 10.

[0016] The principle of the utility model is as follows: the touch switch 8 touches the touch circuit 4 to take effect, the single chip control circuit 2 takes effect, the end of the ignition needle 9 discharges to open the solenoid valve 7, after the induction needle 10 detects the flame, the flame detection circuit 5 takes effect and the solenoid valve 7 is maintained, the induction needle 10 does not detect the flame, the flame detection circuit 5 fails, and the solenoid valve 7 is closed;

[0017] When the touch switch 8 is long touched or continuously pressed, the touch circuit 4 takes effect, the single chip control circuit 2 takes effect, the end of the ignition needle 9 discharges to open the solenoid valve 7, the induction needle 10 detects the flame by default, the flame detection circuit 5 fails, and the solenoid valve 7 is maintained.

[0018] Finally, it should be pointed out that the above embodiments are only representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model should be considered to belong to the protection scope of the present utility model.

Claims

1. A flameout protection device with touch emergency, comprising a DC / DC step-down power supply circuit (1), characterized in that: The invention also comprises a single-chip computer control circuit (2), an ignition circuit (3), a touch circuit (4), a flame detection circuit (5), a solenoid valve control circuit (6) and a solenoid valve (7); the output end of the DC / DC step-down power supply circuit (1) is connected to the input end of the single-chip computer control circuit (2); the output end of the single-chip computer control circuit (2) is connected to the input end of the ignition circuit (3), the output end of the flame detection circuit (5), the input end of the touch circuit (4) and the input end of the solenoid valve control circuit (6); and the output end of the solenoid valve control circuit (6) is connected to the solenoid valve (7).

2. The flameout protection device with touch emergency according to claim 1, characterized in that: The touch circuit (4) comprises a touch switch (8), and the input end of the touch circuit (4) is connected to the touch switch (8).

3. The flameout protection device with touch emergency according to claim 1, characterized in that: The ignition circuit (3) comprises an ignition needle (9), and the output end of the ignition circuit (3) is connected to the ignition needle (9).

4. The flameout protection device with touch emergency according to claim 1, characterized in that: The flame detection circuit (5) comprises a sensing needle (10), and an input end of the flame detection circuit (5) is connected to the sensing needle (10).

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