Gas detector

A gas detector, comprising:

• a gas detector housing (110),
• a universal shaped tube (140), connected to the gas detector housing (110);
• a detection probe (150), connected to an end of the universal shaped tube (140) facing away from the gas detector housing (110);
• a first controller, disposed in the gas detector housing (110);
• a first drive circuit, disposed in the gas detector housing (110) and electrically connected to the first controller;
• a LED module, disposed in the detection probe (150) and electrically connected to the first drive circuit;
• wherein the LED module is configured to provide at least one of alarm and illumination;
• a second drive circuit, disposed in the gas detector housing (110) and electrically connected to the first controller;
• a sensor, disposed in the detection probe (150) and electrically connected to the second drive circuit;
• wherein the sensor is configured to detect a leakage gas;
• a third drive circuit, disposed in the gas detector housing (110) and electrically connected to the first controller;
• a voice broadcasting device (SP), disposed in the gas detector housing (110) and electrically connected to the third drive circuit;
• wherein the voice broadcasting device (SP) is configured to perform voice broadcasting when the leakage gas is detected;
• a fourth drive circuit, disposed in the gas detector housing (110) and electrically connected to the first controller;
• and
• a motor, disposed in the gas detector housing (110) and electrically connected to the fourth drive circuit;
• wherein the motor is configured to perform vibration reminding when the leakage gas is detected;
• wherein the first drive circuit comprises a first resistor (R1), a second resistor (R2), a third resistor (R3), a fourth resistor (R4), a first triode (Q1), and a second triode (Q2);
• the first resistor (R1) is connected to the first controller and a base electrode (B) of the first triode (Q1), an emitter electrode (E) of the first triode (Q1) is connected to an emitter electrode (E) of the second triode (Q2);
• a collector electrode (C) of the first triode (Q1) is connected to the second resistor (R2);
• the third resistor (R3) is connected to the first controller and a base electrode (B) of the second triode (Q2);
• a collector electrode (C) of the second triode (Q2) is connected to the fourth resistor (R4);
• and the second resistor (R2) and the fourth resistor (R4) are connected to the LED module;
• wherein the second drive circuit comprises a fifth resistor (R5), a sixth resistor (R6), a seventh resistor (R7), a variable resistor (R8), and a first capacitor (C1);
• the fifth resistor (R5) is connected to the first controller, an end of the first capacitor (C1), the sixth resistor (R6), and the variable resistor (R8);
• another end of the first capacitor (C1) is grounded;
• the sixth resistor (R6) is connected to the seventh resistor (R7);
• the seventh resistor (R7) is connected to the variable resistor (R8);
• and the variable resistor (R8) is connected to the sensor;
• wherein the third drive circuit comprises a second controller (U1), a second capacitor (C2), a third capacitor (C3), a fourth capacitor (C4), a first diode (D1), and a second diode (D2);
• the second controller (U1) is connected to the first controller, an end of the second capacitor (C2), the voice broadcasting device (SP), an end of the fourth capacitor (C4), an end of the first diode (D1), and an end of the third capacitor (C3);
• another end of the second capacitor (C2) is grounded;
• another end of the fourth capacitor (C4) is connected to the voice broadcasting device (SP);
• the first diode (D1) is connected to the second diode (D2);
• and another end of the third capacitor (C3) is grounded;
• and
• wherein the fourth drive circuit comprises a ninth resistor (R9), a tenth resistor (R10), and a field effect transistor (Q3);
• the ninth resistor (R9) is connected to the first controller, the tenth resistor (R10), and a gate electrode (G) of the field effect transistor (Q3);
• the tenth resistor (R10) is connected to a source electrode(S) of the field effect transistor (Q3);
• and a drain electrode (D) of the field effect transistor (Q3) is connected to the motor.

A gas detector, comprising a gas detector body, wherein the gas detector body comprises a detection probe (150), a gas detector housing (110), and a universal shaped tube (140);

• wherein an end of the universal shaped tube (140) is connected to the gas detector housing (110), and another end of the universal shaped tube (140) is connected to the detection probe (150), and the detection probe (150) is internally integrated with a sensor configured to detect a leakage gas, an alarm lamp configured to indicate an alarm when the leakage gas is detected, and a lighting device configured to illuminate;
• wherein the gas detector body further comprises a first controller, a light-emitting diode (LED) module, and a first drive circuit;
• the LED module comprises the alarm lamp and the lighting device;
• and the first controller is connected to the LED module through the first drive circuit;
• wherein the gas detector body further comprises a fourth drive circuit and a motor configured to perform vibration reminding when the leakage gas is detected, and the first controller is connected to the motor through the fourth drive circuit;
• wherein the fourth drive circuit comprises a ninth resistor (R9), a tenth resistor (R10), and a field effect transistor (Q3);
• and
• wherein the ninth resistor (R9) is connected to a seventh interface (7) of the first controller, the tenth resistor (R10), and a gate electrode (G) of the field effect transistor (Q3);
• the tenth resistor (R10) is connected to a source electrode(S) of the field effect transistor (Q3);
• and a drain electrode (D) of the field effect transistor (Q3) is connected to the motor.