Touch pad control information system for a food waste disposer
A touch pad control information system for a food waste disposer is disclosed. The touch pad is mountable to a wall or countertop near the food waste disposer. The touch pad preferably includes switches which allow the user to select from a plurality of disposer functions, and light emitting diodes (LEDs) or other graphic display to indicate one of a plurality of statuses for the disposer. The touch pad is coupled to the disposer by a wire bus or by wireless means.
1. A system, comprising:
a food waste disposer having a motor with a plurality of energizable windings;
an AC voltage input connectable to a source of AC voltage;
a controller connected to the food waste disposer and the control panel, the controller including
a signal processing circuit;
a DC voltage generation circuit connected to the AC voltage input for converting received AC voltage to DC voltage;
a dual voltage regulator connected to an output of the DC voltage generation circuit to regulate the DC voltage a voltage high enough to energize the windings of the motor, and to a voltage high enough to power the signal processing circuit
a switching circuit connected to outputs of the signal processing circuit to control energization of the windings; and
a control panel in communication with the disposer for allowing a user of the disposer to choose from a plurality of functions that the disposer can perform, the control panel including a first status indicator connected to an output of the signal processing circuit, wherein the signal processing circuit activates the first status indicator in response to current sensed at the switching circuit exceeding a predetermined level.
2. The system of claim 1 , wherein the control panel is mounted to either a countertop or wall located proximate to the food waste disposer.
3. The system of claim 2 , wherein the food waste disposer is mounted underneath a sink.
4. The system of claim 1 , wherein the control panel comprises a plurality of switches connected to corresponding inputs of the signal processing circuit, and wherein the user chooses from the plurality of functions by depressing one of the switches.
5. The system of claim 1 , wherein the control panel is connected to the signal processing circuit.
6. The system of claim 5 , wherein the food waste disposer includes a housing, the signal processing circuit being situated inside the housing and including a connector, and wherein a bus communicates with the food waste disposer by coupling the bus to the connector.
7. The system of claim 6 , wherein the connector is coupled to an end plate of the disposer.
8. The system of claim 1 , wherein the control panel communicates with the signal processing circuit by a wireless link.
9. The system of claim 1 , wherein the controller comprises an application specific integrated circuit.
10. The system of claim 1 , wherein the plurality of functions comprises a plurality of motor speeds.
11. The system of claim 1 , wherein the plurality of functions are selected from the group consisting of a soft start mode, a rinse mode, an optimized grinding mode and an idle mode.
12. The system of claim 1 , wherein the first status indicator comprises an audible indicator.
13. The system of claim 1 , wherein the first status indicator comprises a textual display for textually displaying the status.
14. The system of claim 1 , wherein the first status indicator comprises at least one light associated with the status.
15. The system of claim 1 , further comprising:
a metal sensor connected to the signal processing circuit to detect the presence of a metal object in the food waste disposer; and
the control panel including a second status indicator;
wherein the signal processing circuit activates the second status indicator in response to the metal sensor.
16. The system of claim 15 , wherein the food waste disposer includes:
a stationary shredder ring, the shredder ring being electrically grounded;
a grinding plate connected to a shaft of the motor such that the grinding plate is rotatable relative to the shredder ring;
wherein the metal sensor measures inductive coupling between the grinding plate and the shredder ring to detect the presence of a metal object in the food waste disposer.
17. The system of claim 1 , further comprising a water solenoid connected to an output of the signal processing circuit, wherein the signal processing circuit activates the water solenoid in response to starting the food waste disposer.
18. The system of claim 1 , further comprising a lock cover switch coupled to the AC voltage input to connect the AC voltage input to the source of AC voltage in response to a cover being situated in a drain opening of the food waste disposer.
19. The system of claim 1 , wherein the motor is a variable speed motor.
20. The system of claim 19 , wherein the motor is a switched reluctance motor.
21. The system of claim 19 , wherein the motor is a brushless permanent magnet motor.
22. The system of claim 19 , wherein the control panel includes a speed switch, and wherein the signal processing circuit and the switching circuit control the speed of the motor in response to the speed switch.
23. The system of claim 1 , further comprising a water flow sensor connected to the signal processing circuit for sensing the presence of water in the food waste disposer.