摘要:
A permanent magnet-type motor includes a stator, on which coils are wound; and a rotor located on the inside of the stator, and having a plurality of magnet pairs arranged at positions thereof corresponding to the stator, each magnet pair including a high-energy magnet having a high residual magnetic flux density or a high amount of energy and low-energy magnets having a low residual magnetic flux density or a low amount of energy, thereby limiting the increase of the material costs of the magnets, improving the torque of the motor, and increasing the capacity of the motor.
摘要:
A motor has a field magnet assembly comprising a plurality of magnets arranged in the circumferential direction of the field magnet assembly such that like polarities face each other, and a plurality of magnet spacers disposed between the magnets, respectively. Consequently, leakage of magnetic flux of the field magnet assembly is minimized, and torque is improved as compared to a conventional motor having the same stacking and capacity. In a washing machine with the motor, the magnets and the magnet spacers are integrally attached to the outer tub of the washing machine. Consequently, the size of the washing machine is minimized. The sizes of the inner and outer tubs are increased when the washing machine according to the present invention has the same size as the conventional washing machine. Consequently, the capacity of the washing machine is increased.
摘要:
A flux concentration-type motor includes a ring-shaped stator, in which coils are wound on a plurality of teeth radially arranged; and a rotor, located at the center of the stator, having a plurality of magnets arranged in a circumferential direction such that poles, having the same polarity, of the magnets face each other, and rotated by the interaction with the stator, so as to prevent the leakage of magnetic flux of the magnets, thereby improving the torque compared to a conventional surface mounted permanent magnet-type motor having the same volume, reducing the production costs, and facilitating the miniaturization of products.
摘要:
A motor for a washing machine includes a stator core having one or more bolt thru holes. A stator assembly having the stator core is directly coupled to a bearing housing using the bolt thru holes.
摘要:
Disclosed is a process for the preparation of a high stereospecific (isotactic) polybutylene polymer comprising the step of polymerizing a reactive monomer, 1-butene, which is used or is not used as a solvent, in the presence of catalyst and inert gas. According to the present invention, it is possible to prepare a high stereospecific polybutylene polymer in much higher activity than that of any other known processes for the preparation of a high stereospecific polybutylene polymer. The high stereospecific polybutylene polymer according to the present invention is a homopolymer of 1-butene, or a copolymer containing a-olefin and up to 40% by weight of a comonomer, wherein titanium in the catalyst residues is not detected in the ppm level, stereospecificity (Isotactic Index, mmmm %) determined by 13C-NMR is 96 or more, molecular weight distribution (Mw/Mn) is 3-6, and molecular weight distribution (Mw/Mn) can be controlled to 8 or more.
摘要:
Disclosed is a method of patterning a conductive layer, a method of manufacturing a polarizer using the method and a polarizer manufactured using the same, and a display device having the polarizer. The method of patterning the conductive layer includes (a) patterning a resin layer to form grooves and protrusions, and (b) applying a conductive filling material on the resin layer so as to form a pattern using stereoscopic shapes of the grooves and the protrusions on the patterned resin layer.
摘要:
The present invention provides an ultrasonic micromixer which is used in fields of bio-MEMS (micro-electro-mechanical-system) and μ-TAS (total analysis system) and radiates ultrasonic waves using a piezoelectric device in a direction perpendicular to a horizontal mixing interface between a plurality of sample fluids flowing in a chamber, so as to accelerate the mixing of the sample fluids, thus producing an evenly mixed sample. The ultrasonic micromixer includes a plurality of independent inlets, and a plurality of guide channels which are coupled to the inlets at different heights. The ultrasonic micromixer further includes the chamber to allow the plurality of sample fluids, discharged from the guide channels, to mix with each other while flowing through the chamber, and an outlet to discharge the mixed sample fluids. The ultrasonic micromixer further includes a vibration plate which is attached to a lower portion of the chamber, and a piezoelectric device which is attached to a lower surface of the vibration plate to radiate ultrasonic waves in a vertical direction. Therefore, the ultrasonic micromixer achieves miniaturization, accuracy and integration of devices used in the fields of the bio-MEMS and μ-TAS.
摘要:
A plasma display panel adapted to minimize noise/vibration as well as a heat generated therefrom. In the plasma display panel, a display panel displays a picture while a porous pad is provided behind the display panel to prevent the transfer of noise/vibration to an associated heat proof panel. When the PDP is mounted within a case, a second porous pad can be provided on an inner surface of the case opposite the display panel and adjacent to an associated printed circuit board for additional noise/vibration damping.
摘要:
The operating apparatuses of a washing machine and the methods on that are renovated. The afore-mentioned washing machine is including: a memory that the reference signals are saved in order to operate a motor in a best condition according to each of the condition of the torque and noise; a control unit which generates the switching signals as calling the reference signals which are different each other according to the strokes of a washing machine, and comparing with the carrier signals; an inverter which generates a motor operating signal as an external power is switched by a switching signal; a motor which is rotated by a motor operating signal; and a revolving screen of a washing machine which is operated by a motor.
摘要:
Disclosed herein is a plasma display panel in which afterimage is improved. The plasma display panel according to the present invention includes a panel unit having an upper plate and a lower plate, a frame that supports circuitry, and a conductive material formed between the panel unit and the frame. As such, a conductive material is formed on a bottom surface of a lower plate of a panel. Thus, charges introduced into the lower plate are properly controlled to improve the waveform stability of the panel. Also, a charge characteristic is improved to implement a stable operation. Accordingly, an afterimage time can be reduced. Further, a sheet of a low hardness and light weight is used. It is thus possible to absorb shock and noise of a PDP, accomplish light weight of the PDP and reduce the materials of the sheet.