Smart heater system

Patent metadata

Field	Value
Publication number	US-11550346-B2
Application number	US-202016786218-A
Country	US
Kind code	B2
Filing date	Feb 10, 2020
Priority date	Apr 26, 2013
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

Abstract

A heating system includes a plurality of heater elements, a plurality of switches connected to the plurality of heater elements, a set of predetermined performance information including heater information specific for each heater element, at least one temperature sensor measuring temperature of at least one heater element from among the plurality of heater elements, and a heater control unit in communication with the temperature sensor(s). The heater control unit controls the heater elements differently, via the switches, based on the heater information and the measured temperature from the temperature sensor(s).

First claim

What is claimed is:

1. A heating system comprising:
a plurality of heater elements;
a plurality of switches connected to the plurality of heater elements;
a set of predetermined performance information including heater information specific for each heater element;
at least one temperature sensor measuring temperature of at least one heater element from among the plurality of heater elements; and
a heater control unit in communication with the at least one temperature sensor, wherein the heater control unit controls the plurality of heater elements differently, via the plurality of switches, based on the heater information and the measured temperature from the at least one temperature sensor.

2. The heating system according to claim 1 further comprising at least one support bracket in contact with at least one heater element among the plurality of heater elements.

3. The heating system according to claim 1 , wherein the set of predetermined performance information includes sensor information that includes a measurement of temperature conditions at a location adjacent to the at least one heater element.

4. The heating system according to claim 1 , wherein the set of predetermined performance information includes switch information, wherein the switch information includes a measurement of current and voltage, rate of heating associated with solid state components of the plurality of switches as a function of an amount of electrical current that is being switched, or a combination thereof.

5. The heating system according to claim 1 , wherein the set of predetermined performance information is stored as at least one of written text, a bar code, a data matrix, and a radio frequency identification (RFID) tag.

6. The heating system according to claim 1 , wherein the heater information, for each of the plurality of heater elements, includes at least one of a rate of heating at a desired voltage, a rate of heating under a specified flow condition, heater resistance, heater stability, temperature profile, flow uniformity, and temperature conditions in a location adjacent to the plurality of heater elements.

7. The heating system according to claim 1 further comprising a plurality of temperature sensors to measure temperatures of the plurality of heater elements.

8. The heating system according to claim 1 , wherein the at least one temperature sensor is a thermocouple, a thermistor, or a resistive temperature device.

9. The heating system according to claim 1 further comprising a signal conditioning module in communication with the at least one temperature sensor and configured to process, at least one of, sensor time response and sensor contact resistance to a sheath of the at least one heater element.

10. The heating system according to claim 9 , wherein the signal conditioning module is configured to store the heater information for the plurality of heating elements.

11. The heating system according to claim 1 , wherein the plurality of switches are controlled by a switch control unit that is in communication with the heater control unit.

12. The heating system according to claim 1 , wherein a resistance of each of the plurality of heating elements varies with temperature.

13. A method of providing thermal control in a system including a plurality of heater elements, the method comprising:
providing a set of predetermined performance information including heater information specific for each of the plurality of heater elements;
acquiring temperature from at least one temperature sensor regarding at least one heater element from among the plurality of heater elements; and
controlling the plurality of heater elements differently via a plurality of switches based on the heater information and the acquired temperature from the at least one temperature sensor, wherein the plurality of switches are coupled to the plurality of heater elements to control power to the plurality of heater elements.

14. The method according to claim 13 further comprising supporting a heater element from among the plurality of heater elements with a support bracket in contact with the heater element.

15. The method according to claim 13 , wherein the set of predetermined performance information includes sensor information that includes a measurement of temperature conditions at a location adjacent to the at least one heater element.

16. The method according to claim 13 , wherein the set of predetermined performance information includes switch information, wherein the switch information includes a measurement of current and voltage, rate of heating associated with solid state components of the plurality of switches as a function of an amount of electrical current that is being switched, or a combination thereof.

17. The method according to claim 13 , wherein the set of predetermined performance information is stored as at least one of written text, a bar code, a data matrix, and a radio frequency identification (RFID) tag.

18. The method according to claim 13 , wherein the heater information, for each of the plurality of heater elements, includes at least one of a rate of heating at a desired voltage, a rate of heating under a specified flow condition, heater resistance, heater stability, temperature profile, flow uniformity, and temperature conditions in a location adjacent to the plurality of heater elements.

19. The method according to claim 13 , wherein a resistance of each of the plurality of heating elements varies with temperature.

20. The method according to claim 13 further comprising reducing power to the at least heater element from among the plurality of heater element when the temperature of the at least one heater element is greater than or equal to a predetermined temperature limit, wherein the heater information includes predetermined temperature limit for each of the plurality of heater elements.

Assignees

• Watlow Electric Mfg

Inventors

• Culbertson David P
• Khair Magdi
• Tan Julian
• Everly Mark

Classifications

• G05D23/19 Primary

  characterised by the use of electric means {(G05D23/1393 takes precedence)} · CPC title

• Y02T10/12

  Improving ICE efficiencies · CPC title

• F01N3/027 Primary

  using electric or magnetic heating means · CPC title

• F01N3/2013

  using electric or magnetic heating means · CPC title

• F01N2240/16

  an electric heater, i.e. a resistance heater · CPC title