| KOSTAL INDUSTRIE ELEKTRIK GMBH Patent applications |
| Patent application number | Title | Published |
|---|
| 20120126645 | Frequency Converter for Controlling an Electric Motor - A frequency converter assembly includes a frequency converter, a motor, and an intermediate component. The frequency converter includes a converter housing with an opening. The motor includes a motor having a motor housing with a terminal block. The intermediate component is attached to the motor housing around the terminal block and is attached to the converter housing such that the intermediate component is between the housings with the terminal block being accessible through the opening of the converter housing. | 05-24-2012 |
| 20110092094 | Electric Connection Receptable for a Solar Cell Module - An electric receptacle and junction box for a solar cell module includes an enclosure base and an enclosure cover. The base has a first connector element for electrically contacting a strip conductor of a solar cell module, and a first conductor rail electrically connected to the first connector element. The cover has a second connector element for electrically contacting an output line, and a second conductor rail electrically connected to the second connector element. The first connector element and the first conductor rail are rigidly mechanically connected to the base. The second connector element and the second conductor rail are rigidly mechanically connected to the cover. Electrical contact is made between the first connector element and the first conductor rail and the second connector element and the second conductor rail in response to the enclosure cover and the enclosure base being joined together. | 04-21-2011 |
| 20110006609 | PHOTOVOLTAIC POWER SYSTEM - A photovoltaic power system includes module strings each having photovoltaic modules connected in series. The power system further includes a generator terminal box having DC converters. The power system further includes a generator main connection line and an AC inverter. Each module string is electrically connected to a respective one of the DC converters for the module string to provide a DC voltage generated by the photovoltaic modules of the module string to the respective DC converter. The DC converters output a combined DC voltage based on the DC voltages from the module strings to the AC inverter via the generator main connection line for the AC inverter to transform the combined DC voltage into an AC voltage. The generator terminal box and the AC converter are spatially separate from one another. | 01-13-2011 |
| 20100220508 | Photovoltaic Inverter with Option for Switching Between a Power Supply System with a Fixed Frequency and a Load Variable Frequency - A photovoltaic inverter having an inverter bridge section, a first output, a second output, and a power switch. The inverter bridge section is operable for converting DC electrical energy into AC electrical energy. The inverter bridge section has an output for outputting the AC electrical energy. The power switch is connected to the output of the inverter bridge section, the first output, and the second output. The power switch is selectively switchable between a first state in which the output of the inverter bridge section is connected to the first output via the power switch and a second state in which the output of the inverter bridge section is connected to the second output via the power switch. | 09-02-2010 |
| 20100164435 | MultiChannel DC Controller Operating Independently of Output Power in Critical Conduction Mode - A multichannel bidirectional DC converter includes first and second parallel current channels and a controller. The first channel has a first inductor, first and second switches, and a device operable for detecting a current null passage (zero crossing) of current of the first inductor. The second channel has a second inductor and third and fourth switches. The controller controls the switches to turn on and off such that the channels can be driven in either a boost converter mode or a buck converter mode at a given time. The controller is operable with the device of the first channel for detecting a period of the current null passage of the first inductor. The controller drives the channels with a time delay with respect to one another based on the detected period such that the channels operate in a critical conduction mode. | 07-01-2010 |
| 20100127602 | FREQUENCY CONVERTER FOR CONTROLLING AN ELECTRIC MOTOR - An assembly includes a frequency converter, a motor, and an adapter. The frequency converter and the motor both have housings with an opening. The adapter has a base part and a circuit board having first and second electrical connecting elements supported over a portion of a central opening of the base part. The adapter is between the housings with the central opening being between the openings of the housings. The base part is mechanically connected to the housings with the first electrical connecting element of the adapter engaging an electrical connecting element of the frequency converter via the opening of the converter housing and the central opening and with the second electrical connecting element of the adapter engaging an electrical connecting element of the motor via the opening of the motor housing and the central opening whereby the frequency converter and the motor are connected via the adapter. | 05-27-2010 |
| 20090215292 | ELECTRICAL PRINTED CIRCUIT BOARD WITH A SCREWLESS TERMINAL CONNECTION - A printed circuit board (PCB) assembly includes a PCB and a screwless terminal connection having a conductor rail and a clamping spring. The PCB has a recess on an edge. The conductor rail has a base part soldered to the PCB and bridging the PCB recess. The base part includes an end extending past the PCB edge. The clamping spring includes three spring legs. The first leg contacts the base part and is between the base part and the PCB recess. The first leg includes an end extending past the PCB edge and contacting the end of the base part. The second leg extends from the first leg through the PCB recess and is beneath the PCB. The third leg includes a clamping aperture and extends upward from the second leg above the PCB. The ends of the base part and the first leg extend through the clamping aperture. | 08-27-2009 |
| 20090209115 | ELECTRICAL CONNECTION-AND JUNCTION BOX FOR A SOLAR CELL MODULE - A solar cell module junction box includes a chamber and a clamping spring. The chamber has first and second walls each having bottom and top ends. The spring has first and second legs connected by a middle portion. The spring is inserted into the chamber such that the middle portion is adjacent to the bottom wall ends. The first leg is fixed to the first wall and the second leg is removably connectable to the second wall. The spring is movable between a closed position in which the second leg is disconnected from the second wall and moves toward the first leg and an opened position in which the second leg is connected to the second wall with the legs forming an opening. A conductor strip inserted between the legs is contacted by the second leg and held between the legs when the spring is in the closed position. | 08-20-2009 |
| 20090134855 | METHOD FOR CONTROLLING A DIRECT CURRENT CHOPPER CONTROLLER - A method of controlling a direct current (“DC”) chopper controller having a switch and a storage choke in which the choke has a current dependent on the switching of the switch on and off includes the following. A current variable derived from one of the time averaged value of the current of the choke and the peak value of the current of the choke is determined. A switching frequency for synchronizing the turning on and off the switch is calculated as a function of the current variable and on whether the current variable exceeds a current threshold. The switching frequency is determined to be a predetermined low frequency if the switching frequency is lower than the low frequency and is determined to be a predetermined high frequency if the switching frequency is greater than the high frequency. The switch is switched on and off in accordance with the switching frequency. | 05-28-2009 |
