Abstract: A fibrous body accumulating device includes an accumulating section including a drum that introduces and releases a material including fibers, a detection section detecting a presence of the material in the drum, and an estimation section estimating an amount of the material in the drum based on a detection frequency at which the detection section detects the material. The fibrous body accumulating device further includes a storage section in which a calibration curve showing a relationship between the detection frequency and the amount of the material in the drum is stored, and the estimation section calculates information on the detection frequency and estimates the amount of the material in the drum with reference to the calibration curve.

Abstract: A fibrous body accumulating device includes an accumulating section including a drum that introduces and releases a material including fibers, a detection section detecting a presence of the material in the drum, and an estimation section estimating an amount of the material in the drum based on a detection frequency at which the detection section detects the material. The fibrous body accumulating device further includes a storage section in which a calibration curve showing a relationship between the detection frequency and the amount of the material in the drum is stored, and the estimation section calculates information on the detection frequency and estimates the amount of the material in the drum with reference to the calibration curve.

Abstract: A receptacle protection cover that is attachable to and detachable from a casing of an electronic device including a receptacle into which a plug is inserted, and that protects the receptacle provided in a concave part by covering the concave part formed in the casing, includes: a rectangular plate-shaped cover plate; and a plug attachment part that is provided on an inner side face of the cover plate and that fixes the plug such that a terminal part of the plug projects from one end or the other end of the cover plate in a longitudinal direction, wherein as the receptacle protection cover is detached from the casing, the receptacle protection cover serves as a jig for inserting the plug attached to the plug attachment part into the receptacle.

Abstract: An inverter device includes a heat dissipation casing having a principal surface, heat dissipation fins arranged on an opposite side to the principal surface, a first concave portion provided adjacent to a region corresponding to the heat dissipation fins on the principal surface, and a second concave portion provided adjacent to the region corresponding to the heat dissipation fins on the principal surface, a semiconductor module arranged in the region corresponding to the heat dissipation fins on the principal surface and including a diode module and an inverter module, an inrush-current suppression resistor sealed by a sealing material in the first concave portion and electrically connected between the diode module and the inverter module, and a regenerative resistor sealed by the sealing material in the second concave portion and electrically connected between the diode module and the inverter module.

Abstract: A receptacle protection cover that is attachable to and detachable from a casing of an electronic device including a receptacle into which a plug is inserted, and that protects the receptacle provided in a concave part by covering the concave part formed in the casing, includes: a rectangular plate-shaped cover plate; and a plug attachment part that is provided on an inner side face of the cover plate and that fixes the plug such that a terminal part of the plug projects from one end or the other end of the cover plate in a longitudinal direction, wherein as the receptacle protection cover is detached from the casing, the receptacle protection cover serves as a jig for inserting the plug attached to the plug attachment part into the receptacle.

Abstract: In a bus bar that connects a plurality of terminals of a plurality of power modules including the terminals having screw holes for fixing screws on one surface, the plurality of power modules being disposed in parallel, and that is fixed to the power modules by aligning through-holes provided in the bus bar with the screw holes and inserting the screws into the through-holes and the screw holes. A terminal contact section in contact with the terminals has a first thickness that is smaller than a second thickness of another region, and the first thickness is a thickness with which the bus bar is deformable by fixing the screws such that a contact surface of the bus bar in contact with the terminals comes into close contact with the terminals.

Abstract: An inverter device includes a heat dissipation casing having a principal surface, heat dissipation fins arranged on an opposite side to the principal surface, a first concave portion provided adjacent to a region corresponding to the heat dissipation fins on the principal surface, and a second concave portion provided adjacent to the region corresponding to the heat dissipation fins on the principal surface, a semiconductor module arranged in the region corresponding to the heat dissipation fins on the principal surface and including a diode module and an inverter module, an inrush-current suppression resistor sealed by a sealing material in the first concave portion and electrically connected between the diode module and the inverter module, and a regenerative resistor sealed by the sealing material in the second concave portion and electrically connected between the diode module and the inverter module.

Abstract: An electronic device having a jack hole to expose a jack, includes a circumferential wall is formed in a case to surround the jack, wherein two gap portions of the circumferential wall are formed to pass from the jack hole to the inside of the case, and wherein one gap of the two gap portions is smaller than the other gap of two gap portions.

Abstract: An electronic device having a jack hole to expose a jack, includes a circumferential wall is formed in a case to surround the jack, wherein two gap portions of the circumferential wall are formed to pass from the jack hole to the inside of the case, and wherein one gap of the two gap portions is smaller than the other gap of two gap portions.

Abstract: An inverter apparatus in which a control power source connected to a microcomputer or a peripheral circuit included in at least one of an inverter main body, a built-in option, and a parameter unit is provided in the inverter main body. The apparatus has an external-power-unit connector via which an external power unit can be connected to at least one of the inverter main body, the built-in option, and the parameter unit. The external power unit connected to the external-power-unit connector is configured to function as a power source that controls the microcomputer or the peripheral circuit included in at least one of the inverter main body, the built-in option, and the parameter unit.

Abstract: An inverter device includes an inverter circuit, an inverter driving unit, and a clamp diode. The inverter circuit includes an upper arm unit and a lower arm unit connected in series. The upper arm unit and the lower arm unit include switching elements that drive a load. The inverter driving unit includes a high-withstand-voltage IC that drives the switching elements of the upper arm unit and the lower arm unit. The high-withstand-voltage IC has a first terminal for supplying a reference voltage to the lower arm unit and a second terminal for supplying a high-voltage to the upper arm unit. The clamp diode clamps a potential difference between the first terminal and the second terminal.

Abstract: An inverter device includes an inverter circuit including a bridge circuit connected between a positive electrode and a negative electrode of a direct current power supply. The bridge circuit includes an upper arm unit and a lower arm unit connected in series. The upper arm unit includes a upper arm switching element and a diode connected back-to-back to each other. The lower arm unit includes a lower arm switching element and a diode connected back-to-back to each other. The inverter device further includes an inverter driving unit including a high compression IC that drives the upper arm switching element and the lower arm switching element; and a clamp unit that clamps a difference in potential between a lower-arm driving reference supply terminal of the high compression IC and an upper arm driving high-pressure side power supply terminal of the high compression IC.

Abstract: An inverter apparatus in which a control power source connected to a microcomputer or a peripheral circuit included in at least one of an inverter main body, a built-in option, and a parameter unit is provided in the inverter main body. The apparatus has an external-power-unit connector via which an external power unit can be connected to at least one of the inverter main body, the built-in option, and the parameter unit. The external power unit connected to the external-power-unit connector is configured to function as a power source that controls the microcomputer or the peripheral circuit included in at least one of the inverter main body, the built-in option, and the parameter unit.

Abstract: The present invention provides an uniterruptible electric power supply capable of inhibiting an excessively high intensity of inrush electric current at the time of start even when the inrush electric current inhibiting resistor 3 is not used.

Abstract: The present invention provides an uniterruptible electric power supply capable of inhibiting an excessively high intensity of inrush electric current at the time of start even when the inrush electric current inhibiting resistor 3 is not used.

Abstract: A battery of an uninterruptible power supply unit 1a is configured by at least two batteries (a first battery 2 and a second battery 21a). A control circuit 12a judges opened/closed states of a first cover 6a and a second cover 25a on the basis of information from a first cover-opening detecting device 7a and a second cover-opening detecting device 11a. When the first cover 6a is opened, a first switch 8 which connects a charge and discharge circuit 3 to the first battery 2 is opened, and, when the second cover 25a is opened, a second switch 10 which connects the charge and discharge circuit 3 to the second battery 21a is opened.