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US 10,307,855 B2Granted
Impending thermal shutdown alert system and thermal shutdown process
AssigneeIllinois Tool Works Inc.
InventorsMilad Pashapour Nikou, Craig Steven Knoener, Daniel James Helein, Alan Manthe
Life of this patent
Estimating the term…
Abstract
A welding-type system with a programmed controller and alert devices for alerting a user as to the impending thermal shutdown of the welding-type system.
Claims19
A welding-type system, comprising:
- a welding device susceptible to an excessive temperature condition;
- a temperature measuring circuit with a sensor to measure a temperature of the device and generate an instant temperature value;
- storage in which is stored a factory preset shutdown temperature value and (a) a lower, factory preset pre-shutdown temperature value, or (b) a predetermined temperature offset value;
- a user input selection device configured to receive at least one of a second pre-shutdown temperature value or a second temperature offset value;
- a control circuit coupled to receive the instant temperature value from the temperature measuring circuit, the control circuit programmed to:
- determine at least one of which of the factory preset pre-shutdown temperature value or the second pre-shutdown temperature value is lower, or which of the predetermined temperature offset value or the second temperature offset value is higher;
- compare the instant temperature value with (a) the lower of the predetermined pre-shutdown temperature value and the second pre-shutdown temperature value or (b) the lower of the predetermined shutdown temperature value less the predetermined temperature offset value or the predetermined shutdown temperature value less the second temperature offset value;
- generate an alert signal depending on a result of the comparison;
- and
- prepare the device for shutdown;
- and
- an impending shutdown alert controller coupled to the control circuit configured to output a perceptible alarm in response to the alert signal.
9 more elements
A welding-type system comprising:
- an instant temperature determination unit;
- a data processor in communication with the instant temperature determination unit;
- memory in communication with the data processor and storing a thermal shutdown temperature value and a factory preset impending thermal shutdown temperature value;
- a user input selection device configured to receive a second impending thermal shutdown temperature value;
- and
- an impending shutdown alert signal generator in communication with the data processor;
- a data processor in communication with the instant temperature determination unit and programmed to:
- determine which of the factory preset impending shutdown temperature value or the second impending shutdown temperature value is lower;
- cause the impending shut down alert signal generator to generate an impending shutdown alert signal when an instant temperature determined by the instant temperature determination unit at least is greater than the lower of the impending thermal shutdown temperature and the second impending shutdown temperature value.
6 more elements
A welding-type system comprising a controller board including a processor programmed to:
- receive a user-selected over temperature value;
- define an over temperature condition based on comparing the user-selected over temperature value to a factory-preset over temperature value;
- monitor for the over temperature condition of an apparatus;
- invoke a thermal shut down routine when the over temperature condition occurs;
- place the system in an error state;
- and
- maintain the system in the error state until the over temperature condition is cleared.
4 more elements
Dependencies are inferred from the claim text.