Leak detection system for humidifier
View Patent ↗An electronic leak detection system for home humidifier using the duct air conditioning system. The leak detection system uses a simple sensor in a water collection tray under the humidifier to detect if leakage has occurred. An auxiliary solenoid valve is connected in line with the water supply to the humidifier. When leakage is detected, power to the humidifier system is shut down and an auxiliary solenoid valve is powered.
1. A leakage detection system comprises,
a electronic control unit;
a humidifier;
a sensor;
a water collection pan;
a auxiliary solenoid valve;
a power source;
a water source;
the electronic control unit comprises of a control panel and a electronic control unit circuit;
the control panel comprises of a system function LED, a leakage detection LED, a test button, and a reset button;
the electronic control unit circuit comprises of a main circuit, a detection circuit, a ground, and a 12 volt direct current input;
the main circuit comprises of a humidifier power switch, a auxiliary solenoid power switch, a 12 voltage direct current regulator, a diode bridge, a 0.1 mfd capacitor, a 2200 mfd capacitor, a 1.5 amp fuse, a 0.5 amp fuse, a transformer, a switch relay coil, a function 1 k resistor, a detection activation switch, a 115 volt alternating current input hot, and a 115 volt alternating current input negative;
the electronic control unit, humidifier, sensor, and auxiliary solenoid valve being connected by a connection system; and
the connection system comprises of a humidifier power cord, a solenoid power cord, a electronic control unit power cord, a water source tube, and a solenoid tube.
2. The leakage detection system as claimed in claim 1 comprises,
the humidifier being connected to the humidifier power switch, the 115 volt alternating current input negative and the ground;
the humidifier power switch being connected to the 115 volt alternating current input hot;
the auxiliary solenoid valve being connected in series to the auxiliary solenoid power switch, and the 1.5 amp fuse;
the switch relay coil being connected in series to the deactivation switch;
the auxiliary solenoid valve, the auxiliary solenoid power switch and the 1.5 amp fuse are being connected in parallel to the switch relay and detection activation switch and being in parallel to the transformer;
the transformer being connected in series to the 115 volt alternating current input hot and the 115 volt alternating current input negative;
the diode bridge being connected in series to the 0.5 amp fuse;
the diode bridge and the 0.5 amp fuse being connected in parallel to the transformer;
the system function LED being connected in series to the 1 k resistor;
the 2200 mfd capacitor being connected in parallel to the 0.1 mfd capacitor and being in parallel to the system function LED in series with the 1 k resistor;
the 12 volt direct current regulator being connected to the 2200 mfd capacitor, the 1 k resistor, the 0.1 mfd capacitor, the ground, and the 12 volt direct current input; and
the 12 volt direct current input being connected with the 12 volt direct current input, 1 k resistor, and the 0.1 mfd capacitor.
3. The leakage detection system as claimed in claim 1 comprises,
the humidifier being connected to the electronic control unit by the humidifier power cord;
the auxiliary solenoid valve being connected to the electronic control unit by the solenoid power cord;
the electronic control unit being connected to the power source by the electronic control unit power cord;
the auxiliary solenoid valve being connected to the water source by the water source tube; and
the solenoid being connected to the humidifier by the solenoid tube.
4. The leakage detection system as claimed in claim 3 comprises,
the sensor comprises of a sensor cable, a weight block, a cable clamp, a cable clamp fastener, a positive wire terminal, a negative wire terminal, a positive terminal fastener, and a negative terminal fastener;
the sensor being connected to the electronic control unit by the sensor cable;
the sensor cable comprises of the positive wire and the negative wire;
the sensor cable being secured onto the sensor by the cable clamp;
the cable clamp being secured onto the weight block by the cable clamp fastener;
the positive wire being connected to the positive wire terminal;
the negative wire being connected to the negative wire terminal;
the positive wire terminal being secured onto the weight block by the positive terminal fastener; and
the negative wire terminal being secured onto the weight block by the negative terminal fastener.
5. The leakage detection system as claimed in claim 1 comprises,
The detection circuit comprises of a Darlington transistor, an alarm speaker, a detection relay coil, a detection circuit ground switch, a 12 k resistor, a detection 1 k resistor, a test switch, and a reset switch.
6. The leakage detection system as claimed in claim 5 comprises,
the sensor and test switch being connected in series with the 12 volt direct current input, the 12 k resistor, the Darlington transistor and the ground;
the Darlington transistor being connected to the leakage detection LED, the alarm speaker, the detection relay coil, and the detection circuit ground switch;
the detection circuit ground switch being connected to the ground;
the leakage detection LED being connected in series with the 1 k resistor;
the leakage detection LED and 1 k resistor being connected in parallel with the alarm speaker and the detection relay coil; and
the reset switch being connected the 12 volt direct current input, the detection relay coil, the alarm speaker and the 1 k resistor.
7. A leakage detection system comprises,
a electronic control unit;
a humidifier;
a sensor;
a water collection pan;
a auxiliary solenoid valve;
a power source;
a water source;
the electronic control unit comprises of a control panel and a electronic control unit circuit;
the control panel comprises of a system function LED, a leakage detection LED, a test button, and a reset button;
the electronic control unit, humidifier, sensor, and auxiliary solenoid valve being connected by a connection system;
the connection system comprises of a humidifier power cord, a solenoid power cord, a electronic control unit power cord, a water source tube, and a solenoid tube;
the auxiliary solenoid valve being connected to the water source by the water source tube;
the solenoid being connected to the humidifier by the solenoid tube;
the humidifier being connected to the electronic control unit by the humidifier power cord;
the auxiliary solenoid valve being connected to the electronic control unit by the solenoid power cord;
the electronic control unit being connected to the power source by the electronic control unit power cord;
the sensor comprises of a sensor cable, a weight block, a cable clamp, a cable clamp fastener, a positive wire terminal, a negative wire terminal, a positive terminal fastener, and a negative terminal fastener;
the sensor being connected to the electronic control unit by the sensor cable;
the sensor cable comprises of the positive wire and the negative wire;
the sensor cable being secured onto the sensor by the cable clamp;
the cable clamp being secured onto the weight block by the cable clamp fastener;
the positive wire being connected to the positive wire terminal;
the negative wire being connected to the negative wire terminal;
the positive wire terminal being secured onto the weight block by the positive terminal fastener; and
the negative wire terminal being secured onto the weight block by the negative terminal fastener.
8. The leakage detection system as claimed in claim 7 comprises,
the electronic control unit circuit comprises of a main circuit, a detection circuit, a ground, and a 12 volt direct current input.
9. The leakage detection system as claimed in claim 8 comprises,
the main circuit comprises of a humidifier power switch, a auxiliary solenoid power switch, a 12 voltage direct current regulator, a diode bridge, a 0.1 mfd capacitor, a 2200 mfd capacitor, a 1.5 amp fuse, a 0.5 amp fuse, a transformer, a switch relay coil, a function 1 k resistor, a detection activation switch, a 115 volt alternating current input hot, and a 115 volt alternating current input negative;
the humidifier being connected to the humidifier power switch, the 115 volt alternating current input negative and the ground;
the humidifier power switch being connected to the 115 volt alternating current input hot;
the auxiliary solenoid valve being connected in series to the auxiliary solenoid power switch, and the 1.5 amp fuse;
the switch relay coil being connected in series to the deactivation switch;
the auxiliary solenoid valve, the auxiliary solenoid power switch and the 1.5 amp fuse are being connected in parallel to the switch relay and detection activation switch and being in parallel to the transformer;
the transformer being connected in series to the 115 volt alternating current input hot and the 115 volt alternating current input negative;
the diode bridge being connected in series to the 0.5 amp fuse;
the diode bridge and the 0.5 amp fuse being connected in parallel to the transformer;
the system function LED being connected in series to the 1 k resistor;
the 2200 mfd capacitor being connected in parallel to the 0.1 mfd capacitor and being in parallel to the system function LED in series with the 1 k resistor;
the 12 volt direct current regulator being connected to the 2200 mfd capacitor, the 1 k resistor, the 0.1 mfd capacitor, the ground, and the 12 volt direct current input; and
the 12 volt direct current input being connected with the 12 volt direct current input, 1 k resistor, and the 0.1 mfd capacitor.
10. The leakage detection system as claimed in claim 8 comprises,
the detection circuit comprises of a Darlington transistor, an alarm speaker, a detection relay coil, a detection circuit ground switch, a 12 k resistor, a detection 1 k resistor, a test switch, and a reset switch;
the sensor being connected in parallel with the test switch;
the sensor and test switch being connected in series with the 12 volt direct current input, the 12 k resistor, the Darlington transistor and the ground;
the Darlington transistor being connected to the leakage detection LED, the alarm speaker, the detection relay coil, and the detection circuit ground switch;
the detection circuit ground switch being connected to the ground;
the leakage detection LED being connected in series with the 1 k resistor;
the leakage detection LED and 1 k resistor being connected in parallel with the alarm speaker and the detection relay coil; and
the reset switch being connected the 12 volt direct current input, the detection relay coil, the alarm speaker and the 1 k resistor.
11. A leakage detection system comprises,
a electronic control unit;
a humidifier;
a sensor;
a water collection pan;
a auxiliary solenoid valve;
a power source;
a water source;
the electronic control unit comprises of a control panel and a electronic control unit circuit;
the control panel comprises of a system function LED, a leakage detection LED, a test button, and a reset button;
the electronic control unit circuit comprises of a main circuit, a detection circuit, a ground, and a 12 volt direct current input;
the electronic control unit, humidifier, sensor, and auxiliary solenoid valve being connected by a connection system;
the connection system comprises of a humidifier power cord, a solenoid power cord, a electronic control unit power cord, a water source tube, and a solenoid tube;
the humidifier being connected to the electronic control unit by the humidifier power cord;
the auxiliary solenoid valve being connected to the electronic control unit by the solenoid power cord;
the electronic control unit being connected to the power source by the electronic control unit power cord;
the auxiliary solenoid valve being connected to the water source by the water source tube;
the solenoid being connected to the humidifier by the solenoid tube;
the sensor comprises of a sensor cable, a weight block, a cable clamp, a cable clamp fastener, a positive wire terminal, a negative wire terminal, a positive terminal fastener, and a negative terminal fastener;
the sensor being connected to the electronic control unit by the sensor cable;
the sensor cable comprises of the positive wire and the negative wire;
the sensor cable being secured onto the sensor by the cable clamp;
the cable clamp being secured onto the weight block by the cable clamp fastener;
the positive wire being connected to the positive wire terminal;
the negative wire being connected to the negative wire terminal;
the positive wire terminal being secured onto the weight block by the positive terminal fastener; and
the negative wire terminal being secured onto the weight block by the negative terminal fastener.
12. The leakage detection system as claimed in claim 11 comprises,
the main circuit comprises of a humidifier power switch, a auxiliary solenoid power switch, a 12 voltage direct current regulator, a diode bridge, a 0.1 mfd capacitor, a 2200 mfd capacitor, a 1.5 amp fuse, a 0.5 amp fuse, a transformer, a switch relay coil, a function 1 k resistor, a detection activation switch, a 115 volt alternating current input hot, and a 115 volt alternating current input negative;
the humidifier being connected to the humidifier power switch, the 115 volt alternating current input negative and the ground;
the humidifier power switch being connected to the 115 volt alternating current input hot;
the auxiliary solenoid valve being connected in series to the auxiliary solenoid power switch, and the 1.5 amp fuse;
the switch relay coil being connected in series to the deactivation switch;
the auxiliary solenoid valve, the auxiliary solenoid power switch and the 1.5 amp fuse are being connected in parallel to the switch relay and detection activation switch and being in parallel to the transformer;
the transformer being connected in series to the 115 volt alternating current input hot and the 115 volt alternating current input negative;
the diode bridge being connected in series to the 0.5 amp fuse;
the diode bridge and the 0.5 amp fuse being connected in parallel to the transformer;
the system function LED being connected in series to the 1 k resistor;
the 2200 mfd capacitor being connected in parallel to the 0.1 mfd capacitor and being in parallel to the system function LED in series with the 1 k resistor;
the 12 volt direct current regulator being connected to the 2200 mfd capacitor, the 1 k resistor, the 0.1 mfd capacitor, the ground, and the 12 volt direct current input; and
the 12 volt direct current input being connected with the 12 volt direct current input, 1 k resistor, and the 0.1 mfd capacitor.
13. The leakage detection system as claimed in claim 11 comprises,
the detection circuit comprises of a Darlington transistor, an alarm speaker, a detection relay coil, a detection circuit ground switch, a 12 k resistor, a detection 1 k resistor, a test switch, and a reset switch;
the sensor being connected in parallel with the test switch;
the sensor and test switch being connected in series with the 12 volt direct current input, the 12 k resistor, the Darlington transistor and the ground;
the Darlington transistor being connected to the leakage detection LED, the alarm speaker, the detection relay coil, and the detection circuit ground switch;
the detection circuit ground switch being connected to the ground;
the leakage detection LED being connected in series with the 1 k resistor;
the leakage detection LED and 1 k resistor being connected in parallel with the alarm speaker and the detection relay coil; and
the reset switch being connected the 12 volt direct current input, the detection relay coil, the alarm speaker and the 1 k resistor.