Hybrid line volt two-wire thermostat
AssigneeAdemco Inc.
InventorRaul Antonio Rascon
Life of this patent
Estimating the term…
Abstract
Disclosed are systems and methods that provide a novel thermostat system, which involves a hybrid line volt two-way thermostat configured with triode for alternating current (TRIAC) and relay components. The configuration and operational benefits of each thermostat type can be leveraged by the disclosed hybrid thermostat, which can provide a silent, efficiently operated thermostat system. Such system provides a resource efficient heating, ventilation and cooling control system that can reduce power consumption and thereby reduce costs, while maintaining a streamlined, operationally accurate framework for monitoring and managing the climate of a location (e.g., building, home, office, and the like).
Claims6
An apparatus comprising:
- a controller;
- a temperature sensor;
- and
- a circuit connected to a load;
- wherein the circuit comprises:
- a first power line connected to the load;
- a thyristor on the first power line configured to selectively connect the circuit to the load via the first power line;
- a second power line connected to load in parallel with the first power line;
- and
- a relay on the second power line configured to selectively connect the circuit to the load via the second power line;
- wherein the controller is configured to:
- receive a temperature measurement from the temperature sensor, wherein the temperature measurement is indicative of a temperature of the circuit;
- determine an operating mode of the circuit based on the temperature measurement and a predetermined temperature threshold;
- wherein the operating mode comprises a thyristor control mode whereby the controller actuates the thyristor to selectively connect the circuit to the load when the temperature measurement is less than the predetermined temperature threshold;
- wherein the operating mode comprises a relay control mode whereby the controller actuates the relay to selectively connect the circuit to the load when the temperature measurement is greater than the predetermined temperature threshold;
- receive a load set point;
- determine a load connect rate representative of a frequency of powering the load via the circuit;
- and
- control, based on the operating mode, at least one of the thyristor or the relay at the load connect rate to power the load at the frequency.
A method comprising:
- identifying, by a thermostat device, a temperature to operate the thermostat device for a location, the location being an enclosed space;
- setting the thermostat device to the temperature, and commencing operation of a duty cycle at a first mode;
- wherein the first mode corresponds to triode for alternating current (TRIAC) mode;
- monitoring, by the thermostat device, an internal temperature of the thermostat device during operation at the first mode;
- determining, by the thermostat device, that the internal temperature is at or above a temperature threshold;
- gradually switching, by the thermostat device, to a second mode, the gradual switch comprising continuously executing the first mode for at least a predetermined period of time while also executing the second mode;
- wherein the second mode corresponds to a relay mode;
- and
- operating the thermostat device at the second mode for a remainder of the duty cycle.
A non-transitory computer-readable storage medium tangibly encoded with computer-executable instructions, that when executed by a processor associated with a thermostat device, perform a method comprising:
- identifying a temperature to operate the thermostat device for a location, the location being an enclosed space;
- setting the thermostat device to the temperature, and commencing operation of a duty cycle at a first mode;
- wherein the first mode corresponds to triode for alternating current (TRIAC) mode;
- monitoring an internal temperature of the thermostat device during operation at the first mode;
- determining that the internal temperature is at or above a temperature threshold;
- gradually switching to a second mode, the gradual switch comprising continuously executing the first mode for at least a predetermined period of time while also executing the second mode;
- wherein the second mode corresponds to a relay mode;
- and
- operating the thermostat device at the second mode for a remainder of the duty cycle.
Dependencies are inferred from the claim text.