Patent application number | Description | Published |
20090007579 | Load Driving Device, Outdoor Unit of Air Conditioner, and Driving Method of Load - After the power source to the control substrate is turned on, power is supplied to the compressor driver and the fan driver. Then, when it is determined that an indoor unit is in operation, the compressor driver and the fan driver are operated. Meanwhile, when it is determined that the indoor unit is not in operation, after the lapse of ten minutes or twenty minutes under a predetermined setting, the power to the compressor driver and the fan driver is cut. When the operation of the indoor unit is started again, power is supplied to the compressor driver and the fan driver. | 01-08-2009 |
20090038325 | Outdoor Unit of Air Conditioner and Its Control Method - An outdoor unit includes an outdoor unit control circuit, an inverter substrate and a compressor. Periodic communication showing the operating condition of the inverter substrate is set from the inverter substrate to the outdoor unit control circuit. Thus, when the communication is performed-normally, the drive of the compressor is changed to a power saving process according to the necessity of the power consumption and the operating condition of the inverter substrate. When the communication is defective, the power-on reset is done to the inverter substrate. | 02-12-2009 |
20090145145 | AIR CONDITIONER - An air conditioner preferably includes a selection component (switch) and an air conditioning data acquisition/processing component (printed wiring board). Preferably, a storage component (EEPROM) records at least two sets of data of whether or not an option function is being executed and a drive condition of a compressor relating to air conditioning that the printed wiring board acquires. The switch receives display setting data indicating either one of the two sets of data. The printed wiring board includes an output port that alternatively outputs one of the data of whether or not the option function is being executed and the data of the drive condition of the compressor, and the printed wiring board performs data output processing from the output port in accordance with the display setting data that the switch has received. | 06-11-2009 |
20090281666 | CONTROL DEVICE - A control device is configured to control an air conditioner that includes an air conditioner outdoor unit and an air conditioner indoor unit. The control device includes a microcomputer and a storage element. The microcomputer causes a signal to be transmitted and received between an outdoor communication unit of the air conditioner outdoor unit and an indoor communication unit of the air conditioner indoor unit. The storage element stores specific information in response to command from the microcomputer. The microcomputer causes the storage element to store operation information including a state of transmission and reception of the signal of the air conditioner at a constant time interval. | 11-12-2009 |
20090320507 | AIR CONDITIONER CONTROL DEVICE - A control device includes a microcomputer and a storage element. The microcomputer is configured to execute an inspection operation mode in which an air conditioner is operated in inspection process in a manufacturing site, and a normal operation mode in which the air conditioner is operated at an installation site. When the operation state of the air conditioner fails to satisfy predetermined conditions, the microcomputer is configured to confirm that there is an error, and abnormally stop the air conditioner. When the air conditioner is abnormally stopped, the microcomputer is configured to cause the storage element to store predetermined operation information obtained during a period until abnormal stoppage of the air conditioner and to store the operation mode being executed at the time of occurrence of the error in the air conditioner. | 12-31-2009 |
20110026280 | POWER CONVERSION APPARATUS - The invention relates to a power conversion apparatus including a converter circuit and an inverter circuit. The invention allows more precise output control of the inverter circuit than a power conversion apparatus in which the output control is performed based on a current value only, thereby improving operation efficiency. A current sensor detects input current of the inverter circuit, and a voltage sensor detects input voltage of the inverter circuit. A power value calculator section in an inverter microcomputer obtains a power value based on the input current and the input voltage. The inverter microcomputer and the control microcomputer perform droop control of reducing the output of the inverter circuit to make the power value smaller than a predetermined power value. | 02-03-2011 |
20120033334 | POWER CIRCUIT, AND COMPUTER-READABLE RECORDING MEDIUM STORING A CONTROL PROGRAM FOR POWER CIRCUITS - When an abnormality occurs in a refrigeration cycle, the inverter motor provided in the air conditioner is stopped reliably and contacts of the main relay are prevented from degradation and fusion. A power circuit | 02-09-2012 |
Patent application number | Description | Published |
20100285681 | CONNECTOR HOLDING DEVICE - A connector holding device includes a body-side connector attached to an apparatus body; a cord-side connector for fitting with the body-side connector, provided on the front end of a cord drawn out opposite to the side fitting with the body-side connector; and a connector holding member for holding the cord-side connector, having an opening formed with its cord side smaller than its side fitting with the body-side connector. The device attaches the connector holding member to the apparatus body in a state where the cord-side connector fits with the body-side connector. | 11-11-2010 |
20110194080 | PROJECTION TYPE DISPLAY APPARATUS - A projection type display apparatus including a light source device that includes a light source lamp; an image display element that forms an optical image by performing spatial light modulation on projected light from the light source lamp; and a projection optical system that projects the optical image. The light source device includes a reflector that supports the light source lamp; a cooling fan that generates cooling airflow; an annular duct that is attached to a periphery of the reflector and guides the cooling airflow generated by the cooling fan to the inside of the reflector; a rotating plate that is attached inside the duct so as to be capable of freely rotating about an optical axis and has a discharge opening for discharging the cooling airflow guided by the duct toward the light source lamp inside the reflector; and a posture control unit that controls the posture of the rotating plate such that the cooling airflow discharged from the discharge opening is guided to an upper face side of the light source lamp. If the projection type display apparatus is installed at any arbitrary angle from 0° to 360°, it is possible to cool the light source lamp appropriately, thereby achieving a reliable light source lamp having a long service life. | 08-11-2011 |
20120287954 | Laser Array Light Source Unit - A laser array light source unit | 11-15-2012 |
20130021807 | Lamp Unit - A lamp unit | 01-24-2013 |
20130182229 | PROJECTION TYPE IMAGE DISPLAY APPARATUS - An opening cover of a case is removed. A light source module is held, and the light source module is pulled outside an opening of the case while guide groove parts and guide-rail parts slide along each other approximately parallelly to a case base. At this moment, junction cable connection terminals of the light source module become separated from power-supply connection terminals of a composite optical system. Replacement of a light source is conducted by replacing the light source module as a unit, or by replacing a light source section or a light source section each as a unit. | 07-18-2013 |