54results about How to "Reduce electromagnetic waves" patented technology

The invention relates to a solid-state imaging device, a semiconductor device, manufacturing methods thereof, and an electronic apparatus. The solid-state imaging device includes an imaging element and a logic element. The imaging element includes a first semiconductor substrate, a first wiring layer, and a first metal layer, in which a pixel region which is a light sensing surface is formed. The logic element includes a second semiconductor substrate, a second wiring layer, and a second metal layer, in which a signal processing circuit that processes a pixel signal obtained at the pixel region is formed. The logic element is laminated to the imaging element so that the first metal layer and the second metal layer are bonded to each other, and the first metal layer and the second metal layer are formed on a region excluding a region in which a penetrating electrode layer penetrating a bonding surface of the imaging element and the logic element is formed.

The present invention discloses a package module with EMI shielding and the method thereof. The package module has a substrate or a PCB with at least one ground pad. A variety of electronic components are mounted on the substrate. The dielectric layer overlays a selected area which covers some electronic components and ground pads. Openings are formed within the dielectric layer and above ground pads. The shielding layer with at least two metal layers covers the dielectric layer and is electrically coupled, via the openings, to the ground pad. In general, there is a protection layer to encapsulate the entire substrate. The package module of the present invention not only achieves the requirement of miniature packaging but also reduces EMI caused by high speed electronic devices.

The invention discloses a feedback type round wave-guide feed source for a microwave antenna, which comprises a round wave-guide, a taper medium support and a subreflector. The three parts are positioned on a same axial line, and tight compression-joint cooperation is adopted between the round wave-guide and the medium support and between the medium support and the subreflector. The feedback type round wave-guide feed source is characterized in that the parts are on the same axial line after being assembled; a plurality of annular grooves are processed at certain positions on the conical surface of a taper medium connecting block and a taper of the metal subreflector. Through the annular grooves processed on the subreflector and the conical surface of medium support, the invention changes the transmission direction of part reflected wave and reduces the electromagnetic energy entering the inside of a round wave-guide opening, thereby improving the standing wave ratio index of the feed source and having no influence on other indexes. The feed source with the structure has high rate of finished product for the production and processing, low cost and favorable generalizing value.

A flat panel displaying apparatus is disclosed. The flat panel displaying apparatus includes a liquid crystal display module displaying a picture, a chassis surrounding edges of the liquid crystal display module, defining an external appearance of the flat panel displaying apparatus, a printed circuit board provided with a connector connected to an external system by a connection cable, being grounded to the chassis, a liquid crystal display controller provided in the printed circuit board, activating the liquid crystal display module, and a ground portion formed around the liquid crystal display controller. With this configuration, emission of electromagnetic waves of the printed circuit board is minimized and reliability of the product is enhanced.

The invention discloses a control method of a communication terminal. The control method comprises the steps of obtaining an environment capacitance value; comparing the environment capacitance valuewith a preset first interval; under a condition in which the environment capacitance value is located within the first interval, judging whether a first preset condition is met, so as to determine whether a comparison result that the environment capacitance value is located within the first interval is generated because of an access of a human body; and under a condition in which the first presetcondition is met, controlling a radio frequency module to perform a power reduction operation. Based on the control method disclosed by the invention, on the premise of guaranteeing the user security,the possibility that the radio frequency module executes the power reduction operation in an unnecessary state can be reduced, and the communication performance of the communication terminal is guaranteed. The invention further discloses the corresponding communication terminal.

A method and an apparatus for reducing electromagnetic waves in a mobile device are provided. According to the method, in a mobile device having the first and second modules with different functions, the apparatus operates the first module at the first operating frequency. If there is a request for operating the second module while the first module is operated, the apparatus changes the first operating frequency to a second operating frequency which is different from the first operating frequency, and operates the first module at the second operating frequency. The apparatus reduces a total magnitude of electromagnetic waves caused by a simultaneous operation of two or more modules, thereby enhancing the quality of the mobile device and minimizing any undesirable impact upon the human body.

The object of the present invention is to provide a magnetic sheet composition, a magnetic sheet and a process for producing a magnetic sheet, wherein the magnetic sheet composition can reduce unnecessary electromagnetic waves emitted from electronic equipment and can suppress electromagnetic interference occurring in electronic equipment, that can be cured rapidly at a low temperature, does not generate odor, and does not cause corrosion. The magnetic sheet composition is characterized by comprising an aluminum chelate-based latent curing agent, a silanol compound or alkoxysilane compound represented by formula (A), an epoxy resin, an acrylic resin, and a magnetic powder. Formula (A) is (Ar)mSi(OR)n, wherein, m is 2 or 3; the sum of m and n is 4; Ar is an optionally substituted aryl group; R is a hydrogen atom or a methyl group; and, when n is two or more, the Rs may be the same as or different from each other.

In a discharge device for performing streamer discharge between a discharge electrode (41) including a plurality of discharge parts (61) and a counter electrode (42) including a plurality of counter parts (62) confronting the discharge parts (61), a resistor (60) is provided in a current carrying path between power source means (45) and the discharge parts (61).

A structure for decreasing the electromagnetic interference of network refrigerator is composed of a wave guiding conduit for preventing HF electromagnetic radiation and a signal cable clad by shielding mesh between controller unit and display unit. Its advantage is high effect.

The invention provides a wavy electromagnetic wave absorbing concrete structure based on 3 D printing. The wavy electromagnetic wave absorbing concrete structure is composed of layers of horizontal wavy concrete fins which are stacked in a laminated mode, the lamination height D between every two adjacent layers of concrete fins is 3-6 mm, and the lamination wavy depth K is 1-5 mm; and the width Tof each concrete fin is 10-15mm, and the wave orthogonal angle tan theta of the concrete fins is within the range of 1 / 3-1. According to the wavy electromagnetic wave absorbing concrete structure, a3 D printing technology is applied, thus the x, y and z axes all have uniform and regular wavy wave absorbing structures, and compared with a traditional single layer board structure, wavy special concrete can comprehensively lower electromagnetic wave echoes in multiple directions.

A display apparatus having an electromagnetic wave shielding structure and an electromagnetic wave reducing structure, are provided. The electromagnetic wave shielding and reducing structures are applicable to various materials. The display apparatus includes a display panel, a rear case disposed at a rear of the display panel and formed of a non-conductive material, a printed circuit board disposed at a rear of the rear case, and an electromagnetic wave reducer provided at one surface of the rear case and being formed of a conductive material to reduce the electromagnetic wave generated at the printed circuit board, wherein the electromagnetic wave reducer is electrically connected to the printed circuit board.

The present invention relates to a low-interference vehicle-mounted wireless charger. The low-interference vehicle-mounted wireless charger comprises a circuit board, a wireless charging circuit arranged on the circuit board, and a shielding line arranged on the circuit board; the shielding line includes a peripheral copper foil line located at the outer periphery of the circuit board, and horizontal copper foil lines extending inwardly from the left side and right side of the peripheral copper foil line; each horizontal copper foil line is a line of which one end is connected with the peripheral copper foil line and of which the other end is disconnected from the peripheral copper foil line; and the horizontal copper foil lines which extend inwardly from the left side of the peripheral copper foil line and the horizontal copper foil lines which extend inwardly from the right side of the peripheral copper foil line are distributed in a staggered manner. According to the low-interference vehicle-mounted wireless charger of the invention, electromagnetic interference radiated from a charging coil can be decreased under a condition that normal charging is not affected, a good effect can be achieved in improving the EMC of a charging device, the radiation of a power source can be effectively reduced, the wave radiation of a whole power source battery can be decreased, an anti-interference capacity can be enhanced, outwards-radiated electromagnetic waves of the whole circuit board can be decreased, interference on other components can be prevented, and therefore, the reliability and stability of the entire wireless charger can be improved.

The present invention provides one kind main controller shielding structure capable of shielding electromagnetic wave and dissipating heat for Internet refrigerator. The structure includes framed casing to hold CPU; porous part in the casing to dissipate heat the CPU produces; protrudent digitated plate on the CPU to transmit heat the CPU produces directly to the casing. The digitated plate is made of metal material with high heat conducting performance. The present invention has excellent CPU heat dissipating effect.

The invention discloses a composite cement-based adsorption material and a preparation method thereof and relates to the technical field of sewage treatment. The composite cement-based adsorption material is prepared from the following raw materials in parts by weight: 200 to 240 parts of carboxylated graphene oxide, 30 to 60 parts of vitrified microspheres, 0.5 to 0.8 part of a foaming agent, 3 to 5 parts of a water reducing agent, 2 to 3 parts of an air entraining agent, 600 to 650 parts of cement and 10 to 18 parts of sand; the preparation method comprises the following steps: fully fillingthe carboxylated graphene oxide into the vitrified microspheres through dispersion and suction; then stirring, foaming, curing and drying to obtain the cement-based adsorption material. The compositecement-based adsorption material prepared by the invention can sufficiently utilize structure characteristics of combined carboxylated graphene oxide and vitrified microspheres, and has good properties of strong adsorption property, good mechanical properties, high strength, durability and good permeability resistance; the material can be used for effectively adsorbing metal ions in sewage and can be widely applied to places which are in direct contact with industrial wastewater, such as blowdown pipelines and wastewater treatment tanks.

The present invention provides one kind main controller shielding structure capable of shielding electromagnetic wave and dissipating heat for Internet refrigerator. The structure includes framed casing to hold CPU; porous part in the casing to dissipate heat the CPU produces; protrudent digitated plate on the CPU to transmit heat the CPU produces directly to the casing. The digitated plate is made of metal material with high heat conducting performance. The present invention has excellent CPU heat dissipating effect.

The invention provides an electric pump, which includes a stator assembly, wherein the stator assembly comprises a stator iron core and a winding, the winding comprises a main body segment, a first segment and a second segment, the main body segment is connected with the first segment and the second segment, the stator iron core comprises an iron core tooth part, an iron core yoke part and an iron core neck part, the iron core yoke part is located on the periphery of the winding, a first reference surface is defined, the first reference surface coincides with the axial central axis of the iron core tooth part and the axial central axis of the iron core neck part, the section of the stator assembly is made along the first reference surface, the upper end of the section of the main body segment is flush with the upper end of the section of the iron core yoke part body part, the lower end of the section of the main body segment is flush with the lower end of the section of the iron core yoke part body part, the electric pump further comprises a shielding piece, the shielding piece is made of a conductive metal material, and at least part of the shielding piece is located on the periphery of at least one of the first segment and the second segment. According to the invention, electromagnetic waves radiated to the outside can be reduced, so that interference of the electric pump to the outside can be reduced.

The invention provides an antenna packaging structure and method. The packaging structure comprises a re-wiring layer, a metal connecting column, a packaging layer, a first antenna metal layer, a transmission medium layer, a second antenna metal layer, an antenna circuit chip and a metal bump. The transmission medium layer is formed between the antenna metal layers, so that the loss among multiplelayers of antenna structures can be greatly reduced, and the power consumption of the packaging structure is reduced; the distance between the antenna metal layers can be reasonably set through the thickness of the transmission medium layer; a signal transmission line of elements in the packaging antenna structure is effectively shortened in a three-dimensional packaging mode, so that the electrical connection performance and efficiency of the packaging antenna are greatly improved; and the metal connecting column of the antenna can be formed in an electroplating or chemical plating mode, andthe large-diameter metal connecting column is obtained, so that the structural strength of the metal connecting column is improved, the process deviation is reduced, the feeder loss is reduced, the efficiency and performance of the antenna are improved, the loss of the multi-layer antenna structure can be reduced, and the manufacturing cost is reduced.

A connector for a module, the connector includes: a connector body, the connector body includes an access part; a contact point provided in the access part; a support part for loading a module and restricting its forward, backward, left, and right movement; a metal The cover is covered and locked on the connector body, and holds the module between the supporting part to maintain the connected state. It has a window for exposing the semiconductor chip of the connected module and a heat dissipation plate. In order to prevent problems such as poor contact with the module due to thermal load, the antimagnetic function is used to reduce the influence of electromagnetic waves on the connector to maintain the stability of the circuit operation, and to cool the semiconductor chip to maintain its operation stability.

The invention relates to a wave-absorbing material with a hollow microsphere core-shell structure as well as a preparation method and an application of the wave-absorbing material. The material comprises Fe3O4 hollow microspheres and ZnO, the outer surfaces of the Fe3O4 hollow microspheres are coated with the ZnO, and the Fe3O4 hollow microspheres are of a hollow porous structure. According to theinvention, FeCl3. 6H2O, polyvinylpyrrolidone (PVP), urea and ethylene glycol are used as raw materials, and the Fe3O4 hollow microspheres are prepared by adopting a hydrothermal method; Zn(Ac)2.2H2Oand absolute ethyl alcohol are mixed with the hollow microspheres, and a mixture is reacted in an alkaline environment to obtain the ZnO-coated Fe3O4 hollow core-shell microsphere wave-absorbing material. The wave-absorbing material has good wave-absorbing performance and has certain loss to electromagnetic waves of various wave bands.

The invention relates to a high-functionality hot water circulation warm pad containing sericite foam. A hot water circulation hose is arranged in the sericite foam, so that the anion and far infrared radiation function is excellent. The high-functionality hot water circulation warm pad containing the sericite foam comprises a bottom surface material, a permeable fiber material, a sericite foam pad body, the hot water hose and a hot water supply portion, wherein the bottom surface material is a synthetic fiber material and forms the bottommost portion of the hot water pad; the permeable fiber material is located on the bottom surface material and has elasticity; the sericite foam pad body is located on the upper portion of the bottom surface material and has elasticity; the hot water hose is made of plastic resin and is arranged between the bottom surface material and the sericite foam pad body in a zigzag shape; the hot water supply portion supplies heated hot water to the hot water hose. The high-functionality hot water circulation warm pad containing the sericite foam is low in noise, has few electromagnetic waves and has the anion and far infrared radiation function.

In a discharge device for performing streamer discharge between a discharge electrode (41) including a plurality of discharge parts (61) and a counter electrode (42) including a plurality of counter parts (62) confronting the discharge parts (61), a resistor (60) is provided in a current carrying path between power source means (45) and the discharge parts (61).

A plasma display apparatus is provided to enhance the efficiency of energy by reducing heat radiation generated from a switch using a snubber circuit. A plasma display apparatus includes a source capacitor(Cs), resonance inductors(L1,L2), first and second switches(er_up,er_dn), and snubber circuits(520,530). The resonance inductors form a resonance circuit between the source capacitor and the capacitor of a plasma display panel. The first and second switches control the supplement and recovery of energy between the source capacitor and plasma display panel. The snubber circuits, which are connected between the resonance inductors and source capacitor, include a capacitor and at least one of a resistor and an inductor.

The invention discloses a control method of a communication terminal. The control method comprises the steps of obtaining an environment capacitance value; comparing the environment capacitance valuewith a preset first interval; under a condition in which the environment capacitance value is located within the first interval, judging whether a first preset condition is met, so as to determine whether a comparison result that the environment capacitance value is located within the first interval is generated because of an access of a human body; and under a condition in which the first presetcondition is met, controlling a radio frequency module to perform a power reduction operation. Based on the control method disclosed by the invention, on the premise of guaranteeing the user security,the possibility that the radio frequency module executes the power reduction operation in an unnecessary state can be reduced, and the communication performance of the communication terminal is guaranteed. The invention further discloses the corresponding communication terminal.

Disclosed is an apparatus for adaptively reducing electromagnetic waves that reduces electromagnetic waves generated from commercial power by changing a grounding point of the commercial power supplied to a home. The apparatus for reducing electromagnetic waves includes an electromagnetic wave generator, an electromagnetic wave detector, an impedance varying unit, and a controller. The electromagnetic wave generator is connected to a secondary coil terminal of an external transformer to generate electromagnetic waves. The electromagnetic wave detector generates detection signals corresponding to the electromagnetic waves generated from the electromagnetic wave generator, and the impedance varying unit varies the impedance for a grounding point in the electromagnetic wave generator. The controller controls the impedance varying unit such that the impedance for the grounding point in the impedance varying unit, where the electromagnetic waves are minimized is selected, in accordance with the detection signal from the electromagnetic wave generator. According to the above configuration, it is possible to reduce electromagnetic waves by varying the impedance for all loads in a home with only one apparatus for reducing electromagnetic waves and remove an unnecessary configuration substantially having no effect on varying the impedance. Accordingly, it is possible to provide an apparatus for reducing electromagnetic waves that can reduce a possibility of misoperation at a low manufacturing cost with a simple circuit.

Provided is an antenna for improving an influence of surface waves and increasing a beamwidth, which includes: a substrate, a first metal ground, a second metal ground, an emitting end and a receiving module. The first metal ground and the second metal ground are disposed on a first surface of the substrate. The second metal ground is completely separated from the first metal ground by a first gap. The emitting end is disposed on the first metal ground and includes a transmission line and a plurality of radiating elements. The receiving module is disposed on the second metal ground and includes a first receiving end and a second receiving end. The first receiving end includes a transmission line and a plurality of radiating elements. The second receiving end includes a transmission line and a plurality of radiating elements. In such a way, the antenna of the present invention can solve mutual interference of electromagnetic waves between the emitting end and the receiving module, and achieve the purpose of improving an influence of surface waves, thereby improving the accuracy in determining the direction of an object by the antenna of the present invention.

A method and an apparatus for reducing electromagnetic waves in a mobile device are provided. According to the method, in a mobile device having the first and second modules with different functions, the apparatus operates the first module at the first operating frequency. If there is a request for operating the second module while the first module is operated, the apparatus changes the first operating frequency to a second operating frequency which is different from the first operating frequency, and operates the first module at the second operating frequency. The apparatus reduces a total magnitude of electromagnetic waves caused by a simultaneous operation of two or more modules, thereby enhancing the quality of the mobile device and minimizing any undesirable impact upon the human body.

The invention discloses an anti-electromagnetic method for a tethered UAV, which includes: separating the high-frequency burr wave in the high-voltage direct current through a feed-through capacitor or a feed-through capacitor and leading it to the ground for dissipation; connecting the positive line of the transmission cable and the The negative wire is wound at both ends of the preset magnetic ring, and the peak in the high-voltage direct current is reduced by the anti-phase action of the magnetic ring; the positive and negative wires of the transmission cable are twisted in pairs, so that the high-voltage direct current can The process of transmission in the cable cancels the electromagnetic waves emitted by the positive line and the negative line; the positive line and the negative line are coated with the first metal cladding layer, and the electromagnetic wave in the high-voltage direct current is converted into a relatively small electric transmission to the earth Dissipation; the electromagnetic wave in the high-voltage direct current is converted into heat and dissipated in the air by covering the cable module with a heat dissipation coating layer; the second metal cladding layer is coated on the motor to convert the electromagnetic wave in the high-voltage direct current into a relatively small Electricity is used to introduce relatively micro-electricity into the earth for dissipation.

The invention relates to energy-saving blanket which comprises an AC power input interface, an AC-to-DC converter electrically connected with the AC power input interface, a temperature control device connected with the AC-to-DC converter, a heating element heating sequence device connected with the temperature control device and heating elements connected with the heating element heating sequence device; the AC-to-DC converter is connected with the heating element heating sequence device, and the temperature control device is connected with the heating elements by a sensor. The energy-saving electric blanket is used after AC is converted into DC, thus reducing electromagnetic waves and eliminating the fear on electron waves; and the layout of heating wires of the electric blanket is realized by three groups, the power consumption is reduced, and the electric blanket is designed aiming at the problem of energy conservation all over the world.

The invention proposes a lighting module for a motor vehicle comprising a modulated intensity coherent light source. The features of the invention make it possible to increase the safety of devices of this kind by using a more reliable fault detection than the prior art. A method for controlling a device of this kind is also proposed.

The invention discloses a novel special controller for rope lights or string lights, which comprises a chip provided with eight lead pins, an oscillatory circuit consisting of a crystal oscillator andThe invention discloses a novel special controller for rope lights or string lights, which comprises a chip provided with eight lead pins, an oscillatory circuit consisting of a crystal oscillator andtwo capacitors, a current-limiting resistor, a resistor, a voltage regulator tube and a smart double-channel control tube. The chip of the controller is provided with a plurality of programs, therefo two capacitors, a current-limiting resistor, a resistor, a voltage regulator tube and a smart double-channel control tube. The chip of the controller is provided with a plurality of programs, therefore, only two copper wires are needed for the rope lights or string lights which use the controller of the invention to realize the changeable hue of the light and to achieve the effect of gradual chanre, only two copper wires are needed for the rope lights or string lights which use the controller of the invention to realize the changeable hue of the light and to achieve the effect of gradual changing, jumping, flashing and chasing. The lights using the controller have a plurality of changeable patterns, wide range of application and good lighting and decorating effect. The special controllerging, jumping, flashing and chasing. The lights using the controller have a plurality of changeable patterns, wide range of application and good lighting and decorating effect. The special controlleris easy to produce and use, reliable and safe when working, energy-saving and environment friendly, and can be widely applied as the special controller to the two-wire rope lights or string lights.is easy to produce and use, reliable and safe when working, energy-saving and environment friendly, and can be widely applied as the special controller to the two-wire rope lights or string lights.