Abstract:
A magnetizing type induction motor includes a conventional rotor enclosed within a novel stator. The stator has a pair of crescent-shaped pole pieces, the thickness of the stator pieces at their centers being larger than the thickness at the opposite edges thereof. These stator pieces are secured together by a pair of end cover plates which are provided with fitting grooves for receiving the stator pieces, and coupling pins are installed between the facing edges of the stator pieces. This magnetizing type induction motor is easily miniaturized and is not subject to frequent failures so that it can be reliably used in automated apparatuses.
Abstract:
A magnetizing type induction motor has an ordinary wound rotor 3 with commutator 6 enclosed within a novel stator 2. The stator 2 is constituted by a pair of crescent moon-shaped pieces of ordinary motor steel, the thickness of the stator pieces at their centres being larger, and the thickness becoming smaller coming toward the opposite ends thereof. These stator pieces may be secured by means of a pair of cover plates (9-fig 5) which are respectively provided with fitting grooves for receiving the stator pieces, and, between the stator pieces, there are installed coupling pins (11) respectively. The magnetizing type induction motor according to the present invention makes it possible to easily miniaturize the motor, and is not liable to disorders. Therefore, the motor can be reliably used in automated apparatuses.
Abstract:
A magnetizing type induction motor includes a conventional rotor enclosed within a novel stator. The stator has a pair of crescent-shaped pole pieces, the thickness of the stator pieces at their centers being larger than the thickness at the opposite edges thereof. These stator pieces are secured together by a pair of end cover plates which are provided with fitting grooves for receiving the stator pieces, and coupling pins are installed between the facing edges of the stator pieces. This magnetizing type induction motor is easily miniaturized and is not subject to frequent failures so that it can be reliably used in automated apparatuses.
Abstract:
The invention relates to a magnetization-type induction motor. This motor includes a coiled rotor 3 and a commutator 6 mounted on a rotating shaft 5 embracing a plurality of stator parts 2 shaped like crescents made from a normal steel for motors and installed outside the said rotor, the thickness of the stator parts 2 being increased in its central portion and decreasing towards the opposite ends 8 of the said parts. Application in particular to electric induction motors.
Abstract:
A magnetizing type induction motor includes a conventional rotor enclosed within a novel stator. The stator has a pair of crescent-shaped pole pieces, the thickness of the stator pieces at their centers being larger than the thickness at the opposite edges thereof. These stator pieces are secured together by a pair of end cover plates which are provided with fitting grooves for receiving the stator pieces, and coupling pins are installed between the facing edges of the stator pieces. This magnetizing type induction motor is easily miniaturized and is not subject to frequent failures so that it can be reliably used in automated apparatuses.
Abstract:
A magnetizing type induction motor includes a conventional rotor enclosed within a novel stator. The stator has a pair of crescent-shaped pole pieces, the thickness of the stator pieces at their centers being larger than the thickness at the opposite edges thereof. These stator pieces are secured together by a pair of end cover plates which are provided with fitting grooves for receiving the stator pieces, and coupling pins are installed between the facing edges of the stator pieces. This magnetizing type induction motor is easily miniaturized and is not subject to frequent failures so that it can be reliably used in automated apparatuses.
Abstract:
A magnetizing type induction motor includes a conventional rotor enclosed within a novel stator. The stator has a pair of crescent-shaped pole pieces, the thickness of the stator pieces at their centers being larger than the thickness at the opposite edges thereof. These stator pieces are secured together by a pair of end cover plates which are provided with fitting grooves for receiving the stator pieces, and coupling pins are installed between the facing edges of the stator pieces. This magnetizing type induction motor is easily miniaturized and is not subject to frequent failures so that it can be reliably used in automated apparatuses.
Abstract:
The present invention provides a method for manufacturing a high carbon steel sheet, comprising the steps of i) producing a high carbon slab having a chemical composition comprising, by wt%, C 0.3-1.0%, Mn:0.1-1.2%, Si: more than 0 but less than 0.4%, Al: 0.01-0.1%, S: more than 0 but not more than 0.01%, the remainder being Fe and inevitable impurities ii) reheating the slab to the temperature higher than the Ar3 transformation point, iii) rough-milling the slab, and milling the slab again in an austenite region having a temperature higher than the Ar3 transformation point to produce a steel sheet, iv) cooling the steel sheet on a run-out table by the cooling speed of 50°C/second to 300°C/second, v) finishing the steel sheet cooling process at a temperature of 400-650°C, and maintaining the temperature, vi) winding the steel sheet at a temperature of 450-700°C, vii) omitting a pre-annealing process, and cold-rolling the wound steel sheet by a reduction ratio of 30% or higher; and viii) spheroidizing the cold-rolled steel sheet.
Abstract:
Provided is a condenser microphone with a diaphragm plate having an air groove. The condenser microphone includes a container-shaped case having an open side and a mesh sound hole disposed in a middle portion of a bottom, a diaphragm plate including a polar ring and a diaphragm, the polar ring including an air groove for providing an air flow for the mesh sound hole in the middle portion when being in close contact with the case, the diaphragm being vibrated by a sound pressure introduced through the mesh sound hole, a backplate including a sound hole, a spacer for forming a space between the diaphragm plate and the backplate, an insulating base for electrically insulating the backplate from the case, a conductive base electrically insulated from the case through the insulating base, and a printed circuit board (PCB) on which a connection terminal and a circuit part are mounted, the PCB electrically connected to the backplate through the conductive base and connected to the diaphragm plate through the case.
Abstract:
The present invention relates to a temperature compensation load cell having strain gauges, comprising: one pair of strain gauges; an external force measurer which is affected by an external force; and a temperature compensator which is formed in a part to which the external force is not applied, and includes the other pair of strain gauges, wherein the one pair of strain gauges and the other pair of strain gauges constitute a Wheatstone bridge circuit to compensate temperature when a strain caused by the external force is measured. Further, if a strain (applied load) of an elastic body is measured by using the load cell, it is possible to remove the influence caused by temperature. Thus, accuracy for measuring strain is improved or guaranteed.