| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 361025000 | Motor temperature | 11 |
| 20080225447 | MOTOR START CIRCUIT - Motor start circuit for an induction motor, particularly a single-phase AC induction motor, with a main winding ( | 09-18-2008 |
| 20080253041 | Thermal Overload Protection - A thermal overload protection for an electrical device, particularly an electric motor (M), measures a load current supplied to the electrical device (M), and calculates the thermal load on the electrical device on the basis of the measured load current, and shuts off (S | 10-16-2008 |
| 20090116155 | Automated Anti-Explosion System and Method for Integrated-Drive-Generator - A system for automatically cutting off the energy from, and shutting down an electric generator positioned inside an aircraft engine and supplying electrical power to the aircraft. The system comprising an electric generator, a control panel and driving cabin. The generator having a sensor positioned inside the generator sensing the oil pressure and outputting a signal in response to the oil pressure reaching a predetermined level; a generator disconnect solenoid; and an automatic generator connector receiving the output of the sensor, and in response removing the electrical power supplied by the generator to the aircraft and outputting a signal to the generator disconnect solenoid causing the generator to shut down, and also outputting a control signal. A control panel receiving the control signal and in response outputting a driving cabin control signal. A driving cabin control system receiving the driving cabin control signal and activating a warning system in response. | 05-07-2009 |
| 20090180220 | NON-INTRUSIVE ELECTRONIC CONTROL CIRCUITRY TO DETECT AN OPEN PROTECTOR IN A HERMETICALLY SEALED COMPRESSOR - An electronic apparatus externally detects open protector contacts inside of a compressor. The compressor includes a compressor motor having a run winding and a start winding. The compressor motor also includes internal protector contacts that open the electrical circuit to the “C” terminal in a protection condition. A compressor running indicator circuit is electrically connected between the “S” and the “R” terminals to indicate a compressor running condition. Also, a protection indicator circuit is electrically connected between the “C” and the “S” terminals to indicate a voltage present across the “C” and the “S” terminals. The protection indicator circuit is also coupled to the compressor running indicator circuit such that the protection indicator circuit is disabled when the compressor is running normally and the protection indicator is enabled and indicates when protector contacts open inside of the compressor. | 07-16-2009 |
| 20110164340 | NORMAL-CONDITION-OFF-TYPE PROTECTION ELEMENT AND CONTROL UNIT HAVING THE NORMAL-CONDITION-OFF-TYPE PROTECTION ELEMENT - A first terminal of a protection element of a control unit is connected to a wire between a motor and a switching element, and a second terminal is directly connected to a ground-side wire shared by a controller and the switching element. The protection element has a normal-condition-OFF-type switch including a movable contact and a fixed contact. When an overheating caused by the switching element attains a predetermined temperature or higher, the movable contact and the fixed contact are closed to short-circuit the first terminal and the second terminal, and an electric current is branched to the protection element side to reduce an electric current flowing into the switching element, and the control unit is shifted to a temperature range safe from the overheating caused by the switching element without stopping a cooling system. | 07-07-2011 |
| 20140118866 | ELECTRIC POWER STEERING CONTROL DEVICE AND ELECTRIC POWER STEERING CONTROL METHOD - Provided is an electric power steering control device which can realize a more appropriate countermeasure against heat in accordance with a thermal characteristic of a component used to supply a motor current. The electric power steering control device for assisting a steering force of a steering wheel of a vehicle including a control unit ( | 05-01-2014 |
| 20150077885 | TEMPERATURE PROTECTION DEVICE AND CIRCUIT ARRANGEMENT - Temperature protection device for use in an electrical power circuit for protecting said electrical power circuit against heating, comprising a first contact element and a second contact element, which are connected to one another by the ends thereof, and are designed in such a way that the ends of said first and said second contact elements that are connected to one another separate from one another when a limit temperature is exceeded because of a mechanical pretension between the two ends, thereby interrupting the electrical circuit, wherein at least the ends of the contact elements have a material with a higher recrystallization temperature than pure copper. | 03-19-2015 |
| 361026000 | With bimetallic sensor | 2 |
| 20120075754 | SYSTEMS AND METHODS FOR PROTECTING THREE-PHASE MOTORS - A system for protecting a three-phase electric motor of a compressor, the motor receiving first, second, and third phases from a three-phase power supply, the system including a single-phase line break protector, a first current sensor, and a control module. The single-phase line break protector disconnects the motor from the first phase in response to a temperature being greater than a predetermined temperature threshold. The first current sensor measures a current through the single-phase line break protector. The control module determines a current value based on the measured current, and disconnects the motor from the second and third phases in response to the current value being less than or equal to a predetermined threshold. | 03-29-2012 |
| 20140104730 | MOTOR PROTECTOR - A motor protector of the present invention includes: a serial current path that is formed between a first terminal and a second terminal and that sequentially connects a fixed contact, the first terminal, a movable contact, a movable plate holding a bimetallic element, an intermediate fixing plate, a first electrode section, a first resistor, a second electrode section, and the second terminal, the fixed contact being held by a base member stored in an insulating resin case that includes an opening sealed by the sealing member; and a parallel current path that is formed between the first terminal and the intermediate fixing plate and that sequentially connects the first terminal, a conductive bottom plate, a second resistor (PTC) | 04-17-2014 |
| 361027000 | With thermistor sensor | 2 |
| 20150103450 | Thermal Protection For Electrical Device - There is disclosed an apparatus and method for protecting an electrical device. The electrical device is coupled to a power source, and an electric load, a sensor, and a controller. The controller is configured to shut off the electrical device if certain sensed thermal values exceed predetermined values. | 04-16-2015 |
| 20160181789 | PROTECTION CIRCUIT FOR AN INVERTER AS WELL AS INVERTER SYSTEM | 06-23-2016 |
