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470results about How to "Avoid oversizing" patented technology

Display device

A structure holds a display panel arranged inside a cabinet from the both sides by means of a holding member and a frame portion, which are supported by the circumferential surface section, so as to reduce thickness and frame width without using a bezel and to ensure rigidity. The cabinet is provided with a frame portion positioned on the display surface side of the display panel, a circumferential surface portion positioned at the periphery of the display panel, and a rear surface portion covering the other surface side of the display panel. A protruding section is arranged on the outer circumference side of the periphery of the display panel and the holding member to extend from the display surface side of the display panel toward the side opposite to the display surface, on an inner surface of the frame portion. A reinforcing section is arranged for connecting the inner circumference section of the protruding section with the inner surface section of a frame portion. The protruding section is provided with connecting sections, which are integrally formed with the inner surface of the frame portion, annularly arranged on the outer circumference of the display panel, and integrally formed at a plurality of positions on the protruding section in the circumference direction. The holding member has a section to be connected with the connecting section.
Owner:SHARP KK

Motor-driven three-way valve

The invention discloses a motor-driven three-way valve which comprises an input port, a plurality of output ports and a valve core. An opening of the input port is formed in the face of a valve seat, and the plurality of output ports are arranged at intervals and provided with a plurality of openings. The valve core rotates on the valve seat in a sliding mode under the driving force of a motor portion and opens and closes the plurality of output ports selectively. The motor portion serves as a separated individual and is installed on the outer side of the upper end face of a cylindrical outer cover for leading in a refrigerant. The valve seat is arranged on the opening portion at the lower end of the cylindrical outer cover. The valve core is driven by a gear device for transferring the driving force of the motor portion and arranged in the cylindrical outer cover. The cylindrical outer cover is formed by a lateral wall with a lateral opening portion and a top portion, the valve seat is arranged on the lateral opening portion, the other lateral opening portion is arranged on the top portion through the cylindrical wall portion, a casing fixed on the wall is arranged on the other lateral opening portion in an erection mode and installed on the cylindrical outer cover, and a motor is arranged in the casing. The valve avoids large-size coils, shortens occupied space, enables the shape of the valve core to be well balanced and ensures that the valve core can slide on the valve seat in the rotating direction.
Owner:ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD

Method for preparing hydrogen peroxide

The invention discloses a method for preparing hydrogen peroxide. A working liquid and a hydrogen-containing gas are introduced into a slurry bed reactor; a hydrogenated liquid is obtained by reaction in the existence of a catalyst; the hydrogenated liquid reacts with oxygen to obtain the hydrogenated liquid containing hydrogen peroxide in an oxidation reactor; oxidized liquid is extracted and separated from an extraction tower to obtain a hydrogen peroxide solution and working liquid; the slurry bed reactor comprises a cap (12), an expanding section (13) and a draft tube (11); the expanding section (13) is positioned at the lower part of the cap (12); the pipe diameter of the expanding section (13) is greater than that of the cap; the draft tube (11) is arranged in the expanding section (13); the pipe diameter of the draft tube (11) is smaller than that of the cap (12); a bottom opening of the cap (12) extends into the expanding section (13); the outer wall of the cap (12) is connected with the top of the expanding section (13); an upper opening of the draft tube (11) extends into the cap (12); and an opening is formed in the lower part of the draft tube (11). The method disclosed by the invention is stable to operate, and easy for realization of industrial enlargement; no alkali is introduced in the process of preparing hydrogen peroxide; and the risk of explosion caused by hydrogen peroxide decomposition is avoided.
Owner:CHINA PETROLEUM & CHEM CORP +1

Powe supply unit and air conditioner with the power supply unit

The invention provides a power supply unit wherein the conduction angle of input current is widened through simple control and thereby the power factor is improved and the harmonic component of the input current is reduced. The power supply unit is provided with a rectification circuit that rectifies the voltage of alternating-current power supply, a reactor connected with the rectification circuit, a power-factor improvement circuit that includes a plurality of switching elements and capacitor circuits and is fed as input with the output voltage of the rectification circuit, a change-over switch portion that is connected between the rectification circuit and the power-factor improvement circuit and switches the state of conduction of a current path formed between them from the state in conduction to the state out of conduction and vice versa, a change- over switch control portion that controls the state of conduction of the change-over switch portion, a pulse signal control portion that generates and outputs pulse signals for turning on and off the individual switching elements in the power-factor improvement circuit, and a switch driving portion that receives the pulse signals from the pulse signal control portion and drives the switching elements in the power-factor improvement circuit.
Owner:PANASONIC CORP

Integrated measuring device for flow density distribution of large-size spraying field

The invention discloses an integrated measuring device for flow density distribution of a large-size spraying field. The integrated measuring device is composed of a water collector, an L-shaped fixing rib, an integrated cover plate and a rack, wherein the water collector is formed by digging measuring holes in the same size and regular arrangement on rectangular plate made of a transparent material; the long arm of the L-shaped fixing rib is adhered and connected with the water collector; the L-shaped fixing rib is fixed on the rack through a positioning screw hole on a short arm; the measuring holes on the water collector are vertically upward formed at measuring positions in the spraying field; the cover plate is connected with the top of the fixing rib through a rotating shaft; at the beginning or ending of measurement, the cover plate is opened or closed around the rotating shaft; a transparent scale bar is attached to the side wall of the water collector, wherein the starting scale is aligned with the bottom of the measuring holes; plate parts outside the orifices of the measuring holes are cut according to a certain radian, in order to avoid measurement error caused by the liquid drop outside the orifices which splashes into the measuring holes after colliding with the measuring device; and the height of the rack is adjustable, so that the flow density distribution condition on different spraying cross sections is measured.
Owner:XI AN JIAOTONG UNIV

Emergency braking device of elevator

The invention provides an emergency braking device of an elevator, which does not cause large size and furthermore can control a braking force in braking in a range that does not exceed a preset value. The emergency braking device of the elevator presses a braking shoe on a guide rail and make the braking shoe slide on the guide rail for generating a braking force when an elevator cage drops in a speed which exceeds a limited speed. The emergency braking device of the elevator has components of: an upper elastomer and a lower elastomer which applies a pressing force to the guide rail on the braking shoe in braking; an oblique member with an oblique surface which opposes the oblique surface of the braking shoe at the opposite side of the guide rail; rollers which are arranged between the oblique surface of the braking shoe and the oblique surface of the oblique member; and an emergency braking device which supports the components. The emergency braking device of the elevator further comprises the components of: a second oblique member which opens the upper elastomer when the braking force exceeds a preset value, a third oblique member with an oblique surface which opposes the oblique surface of the second oblique member, and rollers which are arranged between the oblique surface of the second oblique member and the oblique surface of the third oblique member.
Owner:HITACHI LTD +1

Energy-saving control method and system for river water source heat pump system

Provided are an energy-saving control method and system for a river water source heat pump system. The method comprises the following steps that S1, building standard cold and heat energy consumptionlarge data are built; S2, according to the building function, energy using time and load distribution difference, by combination with the building standard cold and heat energy consumption large data,building refinement partitioning is conducted, a cold and heat energy requirement dynamic curve of all subzones of a building is generated, and the dynamic curve is updated once at fixed intervals; and S3, according to the cold and heat energy requirement dynamic curve of the building, the large hysteresis quality and nonlinearity of an air conditioner system are considered, the river water source heat pump system is divided into an equipment starting stage, a steady-state operation stage and an equipment halt stage, and staged control is conducted; and the temperature changes of river waterare monitored in real time, and when the temperature difference of inlet and outlet water of a river water source heat pump unit exceeds the set value, corresponding water pumps are controlled in a variable-frequency mode, and the water flow is adjusted. The invention further discloses the energy-saving control system for the river water source heat pump system. The energy-saving control method and system for the river water source heat pump system have the advantages of being high in efficiency, stable, free of pollution, small in energy consumption, remarkable in energy-saving effect and thelike.
Owner:湖南湖大瑞格能源科技有限公司

Speed-transformation device for electric automobile

The invention provides a speed-transformation device used for an electric automobile. The speed-transformation device is provided with a fork-shaped rod, a synchronous mechanism, a clutch mechanism and a planet gear mechanism arranged on the same line with an input shaft connecting with an electric motor and an output shaft connecting with the wheel. The synchronous mechanism, the clutch mechanism and the planet gear mechanism are arranged in the shell successively. A sleeve of the synchronous mechanism connects with the forked shaped rod. A hub in a spline fit with the sleeve can not be fixed on the shell in the periphery of the output shaft in a rotary manner. A conical part connects with a clutch drum of the clutch mechanism. The clutch mechanism can switch to a connection state and a releasing state of the input shaft and the clutch drum. The output shaft connects with a sun gear. An inner gear connects with a clutch drum. A planet support connects with the output shaft. When the synchronous mechanism is in connection, the clutch mechanism is released. When the synchronous mechanism is released, the clutch mechanism is connected. The speed-transformation device used for the electric automobile in the invention is small in size and has low power loss. Even when mandatory speed transmission to a second speed is realized in braking, the speed transformation can also be realized.
Owner:爱思帝达耐时(上海)驱动系统有限公司
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