摘要:
This invention provides an improved deflection yoke of a self-convergence system for deflecting electron beams of a color CRT with in-line electron guns for emitting the electron beams, capable of preventing both a vertical misconvergence of R/B lines and a cross-misconvergence at a low cost. The deflection yoke includes at least a pair of saddle type horizontal deflection coils. Each of the saddle type horizontal coils has two main coil sections divided by a window at a center thereof, a front rim forming a front mouth, a rear rim forming a rear mouth and, at least, a first split-winding section nearby one of the front and rear rims. Further, a second split-winding section is provided in the respective two main coil sections in a rear half of the respective two main coil sections. The second split-winding section is divided into two parts, a first coil part positioned close to the window and a second coil part positioned remote from the window, by a small opening. The first coil part has a bent part being bent toward the window to define the small opening.
摘要:
A deflection yoke is comprised of a separator for insulating horizontal and vertical deflection coils, the horizontal deflection coils of saddle type are provided within and top and bottom portion of the separator respectively, the separator has ribs for partly separating the top and bottom of horizontal deflection coils at their confronted portions, so that the confronted portions confront directly each other where the ribs are not present, thereby a magnetic field generated by the horizontal deflection coils is collected depending on a location and configuration of the ribs.
摘要:
A modulation circuit includes a band restriction filter 2, an attenuator 3, a modulator 4, a reference voltage generator 8, a comparing reference voltage generator 9, a voltage comparator 10 and an attenuator controller 7. The band restriction filter 2 receives modulation data. The attenuator 3 is connected to the band restriction filter 2 for adjusting its attenuation in response to an attenuator control signal. The reference voltage generator 8 is connected to the attenuator 3 for providing a reference voltage independent of a temperature and a power supply voltage to the attenuator. The comparing reference voltage generator 9 is connected to the reference voltage generator 8 for providing a comparing reference voltage independent of the temperature and the power supply voltage. The modulator 4 is connected to the attenuator 3. The voltage comparator 10 is connected to the attenuator 3 and the comparing reference voltage generator 9 for comparing the comparing reference voltage with a voltage of an output of the attenuator 3 and generating a comparison signal based on the comparison. The attenuator controller 7 is connected to the attenuator 3 and the voltage comparator 10 for generating the attenuator control signal in response to the comparison signal.
摘要:
A heat exchanger composed by overlapping a plurality of heat exchanger units each of which is formed by inserting a plurality of fins over one or a plurality of heat transfer tubes. The fins are worked so that a pair of opposed fins of the overlapped heat exchanger units are brought into contact with each other at one or more points. This heat exchanger constitutes an air conditioner when the heat exchanger units are overlapped in a direction of gravity.
摘要:
A power FET for which it is difficult to generate oscillations dependent on the interval between adjacent pads. The power FET has a plurality of pads for first terminals, which are disposed on one side of a chip at unequal intervals, and a plurality of pads for second terminals, which are placed on the other side of the chip. Alternatively, or in addition, the plurality of pads for the second terminals may also be disposed at unequal intervals.
摘要:
An air-conditioner of a heat pump type includes a refrigeration cycle including an interior heat exchanger, an exterior heat exchanger, a compressor, a four-way valve, and an expansion mechanism, and a non-azeotrope refrigerant composed of not less than two kinds of refrigerants is used as a working medium. A refrigerant path in each of the interior and exterior heat exchangers is divided into a group of first refrigerant passages located at a region where a proportion of the liquid-phase refrigerant is large and a group of second refrigerant passages located at a region where a proportion of the liquid-phase refrigerant is small. At least part of the group of first refrigerant passages of each of the interior and exterior heat exchangers is located at the windward side. Heat transfer tubes of the group of first refrigerant passages of each of the interior and exterior heat exchangers are smaller in flow-passage cross-sectional area than those of the corresponding group of second refrigerant passages.
摘要:
A heat transfer pipe for use in a heat exchanger such as air conditioner, freezer and boiler, wherein grooves are formed in the inner wall surface of the pipe, which are by far finer in size than the grooves that have been provided for the purpose of increasing the heat transfer area in general, and slanting relative to the axis of pipe, to thereby improve the heat transfer rate without increasing the pressure loss caused to the fluid flowing through the pipe.
摘要:
A hydraulic antivibration device capable of sufficiently reducing strange sounds is provided. The one in a first embodiment includes first ribs whose tops are spaced apart from lattice members and second ribs having tops abutting on the lattice members and a smaller rib width than the first ribs. When an elastic partition membrane impinges on the lattice members with vibration, the second ribs resist and the elastic partition membrane impinges moderately on the lattice members, so that strange sounds can be reduced. In a second embodiment, such first and second displacement-regulating protrusions are provided that are disposed asymmetrically relative to a phantom plane passing through a center of the elastic partition membrane in its thickness direction. When the elastic partition membrane is displaced, the displacement-regulating protrusions on the opposite side to the displacement direction intensify the stiffness of it locally, so that the elastic partition membrane is difficult to displace, leading to an effective reduction of strange sounds.
摘要:
The present invention is to provide a liquid-filled type vibration isolator with the reduced number of parts and good productivity. The vibration insulator comprises an inner cylinder, a first ring approximately L-shaped in cross section, a second ring, an orifice ring approximately U-shaped in cross section and arranged between the first ring and the second ring, and an elastic member of rubber material integrally combined with an outer periphery surface of the inner cylinder and inner periphery surfaces of the first ring, the orifice ring, and the second ring. The elastic member is provided with a first groove and a second groove, an outer cylinder is combined with the first ring and the second ring on the outside of them, the outer cylinder and the first groove form a first liquid chamber, the outer cylinder and the second groove form a second liquid chamber, the outer cylinder and the orifice ring further form an orifice path making the first liquid chamber and the second liquid chamber communicate with each other, and the first liquid chamber, the second liquid chamber and the orifice path are filled with liquid.
摘要:
A liquid-sealed vibration insulator is comprised of a cylindrical elastic member integrally formed with an inner cylinder, first and second rings and an orifice ring located between the first and second rings. An outer cylinder is integrally connected to the elastic member through the first and second rings. A first liquid chamber is formed at a portion between the outer cylinder and the elastic member and between the first ring and the orifice ring, and a second liquid chamber is formed at a portion between the outer cylinder and the elastic member and between the orifice ring and the second ring. The first and second liquid chambers are fluidly communicated through an orifice passage defined by the orifice ring.