63results about How to "Improve signal shielding effect" patented technology

The invention provides a touch-sensing electrode structure and a touch-sensitive device. The touch-sensing electrode structure has a plurality of electrode units. Each of the electrode units includes at least one first electrode and at least one second electrode. The second electrode is formed in an area not overlapping the first electrode, and the first electrode has a first part and a second part. The second electrode is adjacent to the first part of the first electrode and spaced apart the first part of the first electrode by a first interval, the second part of the first electrode is adjacent to the second electrode and spaced apart the second electrode by a second interval, and a width of the second interval is not equal to a width of the first interval. In this way, the area of the mutually inducted action surface between the first electrode and the second electrode is greatly increased, so that the inducted electric capacity of the touch-sensing electrode structure and the sensitivity of the touch-sensing operation are improved.

The invention relates to a multi-core fire-resistant power cable which comprises a wire core, a filling layer, an external shielding layer, an insulating layer, a longitudinal water resistant buffer layer, a first protective layer and a second protective layer which are arranged from inside to outside in turn. The wire core comprises multiple spirally wound leads and an internal shielding layer. The structure is reasonable, and two different materials of protective layers are adopted so that wear resistance can be enhanced, aging is not liable to occur and the safety is enhanced. The insulating layer is made of high-temperature-resistant crosslinked polyethylene so that the cable is not liable to be softened by high temperature, and breakdown of the cable caused by overload current can be prevented. Double shielding of the internal shielding layer and the external shielding layer is adopted so that the signal shielding effect can be enhanced, interference of signal transmission of other signal wires can be avoided, and the longitudinal water resistant buffer layer arranged outside the insulating layer has high water resistance. Besides, the leads are spirally wound so that the fracture resistance of the cable can be enhanced. The multi-core fire-resistant power cable has the advantages of high protective property, high temperature resistance, wear resistance and long service life and is particularly suitable for being popularized in the electric power industry.

The invention relates to an electric connector which comprises a base, a plurality of differential signal pairs, a plurality of first shielding members and a plurality of second shielding members, wherein the differential signal pairs, the first shielding members and the second shielding members are contained in the base, and the differential signal pairs and the first shielding members are alternately arranged in the first direction; the second shielding members and the differential signal pairs are alternately arranged in the second direction which is perpendicular to the first direction; and each second shielding member comprises a contact part which contacts the first shielding member. The first shielding members and the second shielding members can shield signal cross-disturbance between adjacent differential signal pairs in two directions; and thus, better signal shielding effect can be achieved.

The invention provides a signal shielding express box which comprises a signal shielding layer in a sandwich layer of a box body and a box door. The signal shielding layer is composed of aluminium foil layers and signal shielding bars, wherein the aluminium foil layers are of a double-layer structure, and the signal shielding bars are embedded into the double-layer structure of the aluminium foil layers. An interface connected with the signal shielding bars is arranged at the connecting position of the box body and the box door. The protruding flexible signal shielding bars of the box door can be automatically embedded into the interface of the box body after the box door is closed, and the complete signal shielding layer is formed. The signal shielding bars are in parallel and are closely arrayed to form a signal shielding net, and the signal shielding layer is formed.

The invention relates to the technical field of circuit board manufacturing, in particular to a multi-layer flexible circuit board for shielding a signal line and a manufacturing method of the multi-layer flexible circuit board. The manufacturing method of the multi-layer flexible circuit board for shielding the signal line is simple and convenient, and a single-sided flexible circuit board is directly pressed on the two surfaces of a double-sided flexible circuit board base material, a shielding thin film is laminated on the outermost layer, and meanwhile, an opening in the single-sided flexible circuit board is filled, so that the shielding thin film and a grounding wire area form metal wrapping on the signal line area, a high signal shielding effect is achieved, and loss of line signalsis reduced. According to the multi-layer flexible circuit board manufactured by the method for manufacturing the multi-layer flexible circuit board for shielding the signal line, the line signal lossis low, the overall thickness is thin, and the multi-layer flexible circuit board has relatively high bending performance.

The invention discloses a medium-voltage soft-conductor photoelectric integrated cable comprising a plurality of power units. The power units are covered with a water stop layer, a liner layer, a wire armored layer and an outer sheath layer in order. A plurality of fiber units are disposed in gaps among the power units. Each power unit comprises a soft-conductor wire core which is covered with an inner shield layer, an insulating layer and an outer shield layer in order. Each fiber unit comprises a loose tube accommodating a fiber core, fiber paste and a reinforcing wire, and the loose tube of the fiber unit is covered with an asbestos cloth layer and a silicone layer in order. When the medium-voltage soft-conductor photoelectric integrated cable operates at high temperature for a long time, the interior temperature of the cable can be lower than 60 DEG C, and the transmission performance of the cable is unaffected; in addition, the asbestos cloth and silicone wrapping the fiber units also has the function of enhancing fiber outer support, and the fiber units are protected from crush when the fiber units and the power units are stranded into the cable.

The invention discloses a preparation method of a coaxial cable, which relates to the field of cable processing. The coaxial cable includes an inner conductor, an insulating layer, a shielding layer and an outer sheath, and the insulating layer includes a rubber layer and a foaming layer, wherein , take the oxygen-free copper core as the inner conductor, after straightening, sizing, and ultrasonic cleaning, dry the surface with nitrogen, and then spray the silver paste evenly on the surface of the oxygen-free copper core with a high-pressure spray gun to obtain the inner conductor. The silver-plated coating on the oxygen copper core protects the copper core against oxidation, prolongs the service life, enhances the directionality of signal transmission, and improves the signal quality. A rubber layer is provided outside the inner conductor to reduce the bending flexibility of the coaxial cable , There are heat dissipation holes on the rubber layer, which can help the inner conductor dissipate the heat generated during work, reduce the resistance of long-term work, and increase the current. In the outer sheath, aluminum hydroxide and magnesium hydroxide are added to the outer sheath. Triphenyl phosphite is used as an antioxidant to increase the flame retardant and anti-aging properties of the outer sheath.

The invention discloses an RFID scaleplate scale device with a communication micro passage and a building method of the RFID scaleplate scale device with the communication micro passage. The RFID scaleplate scale device with the communication micro passage comprises two or more micro passage assemblies, a channel converging rail, a scaleplate pointer, a shielding assembly and a scaleplate. Each micro passage assembly further comprises a micro channel outlet embedded into a through hole of the channel converging rail, the scaleplate pointer is arranged on the shielding assembly, one end of the scaleplate pointer is directed at the scaleplate, and the interval between every two adjacent micro passage assemblies corresponds to the scales on the scaleplate. The shielding assembly can move on the channel converging rail along with the scaleplate pointer in two directions, when the shielding assembly moves to the position above any one micro channel outlet along with the scaleplate pointer, the shielding assembly connects or disconnects the communication between an RFID electronic tag corresponding to the micro channel outlet and an external RFID system, and therefore changes of an external measurement angle or linear displacement are obtained. The RFID scaleplate scale device with the communication micro passage and the building method of the RFID scaleplate scale device with the communication micro passage have the advantages of being simple in measurement, convenient to built and capable of being identified in a non-touch mode and achieving real-time detection, and can be widely applied to the field of engineering measurement.

The invention relates to the technical field of a signal shielding cover, in particular to a signal shielding cover structure, comprising a superposed PCB board assembly and a hardware bracket assembly, and a shielding cover sandwiched between the PCB board assembly and the hardware bracket assembly. And a shielding area for shielding signals is arranged on the PCB component; The shielding cover abuts on the hardware support assembly and is interference-coated on the shielding area. The invention aims at providing a signal shielding cover structure. The technical scheme provided by the invention solves the technical problems of loosening of the shielding cover, complex structure and installation process, poor conductivity and tightness of the existing signal shielding cover.

The invention provides a high-frequency slip ring device. The high-frequency slip ring device comprises a main shaft (1) and a plurality of slip ring portions, wherein the main shaft (1) is made of metal; the multiple slip ring portions are arranged on the main shaft (1) in a sleeved mode, each slip ring portion comprises a signal loop (11) and two shielding loops (12), and the two shielding loops (12) of each slip ring portion are arranged on the two opposite sides of the corresponding signal loop (11). According to the high-frequency slip ring device, the technical problems that in the prior art, electric signals leak between slip rings, and the signal shielding effect is not good are solved.

The invention relates to the technical field of card bags and in particular to a card bag with a signal shielding function. The card bag comprises a card bag body. The card bag body comprises openablefront clip and back clip. The top of the back clip is provided with a separating layer. The separating layer partially extends to the front clip, and a card pocket is formed by the separating layer and the card bag body. An opening of the card pocket is positioned in an area of the front clip. Signal shielding layers are respectively embedded in the separating layer and the card bag body. According to the card bag provided by the invention, by using a first signal shielding layer and a second signal shielding layer to coat a mobile communication device in a structure of the card pocket, signal isolation can be performed on the mobile communication device, signal connection of the mobile communication device with the outside can be cut off, so as to realize signal shielding; in addition, because the separating layer partially extends to the front clip, while the card bag is folded, the extending part of the separating layer is cooperated with the front clip, so as to realize natural sealing of the card pocket in a folding process, improve leakproofness of the card pocket, and reinforce the single shielding effect of the card pocket.

The invention discloses a coaxial radio frequency cable interference shielding and enhancing structure, and relates to the technical field of radio frequency cables. The structure comprises two shielding and enhancing mechanisms which are in symmetrical sliding fit, and each shielding and enhancing mechanism is composed of an outer shielding assembly, a cable clamping assembly, a magnetic pushing assembly and an inner shielding assembly. The cable clamping assembly, the magnetic pushing assembly and the inner shielding assembly are all located in the outer shielding assembly, the cable clamping assembly is fixedly connected with the outer shielding assembly, and the magnetic pushing assembly and the cable clamping assembly are magnetically repellent; the inner shielding assembly is in sliding fit with the outer shielding assembly, and the inner shielding assembly and the cable clamping assembly are magnetically repellent. Through the design of the shielding and enhancing mechanisms, the cable clamping assembly, a positioning column and a clamping piece, and the shielding and enhancing mechanisms can be installed outside a coaxial radio frequency cable interface after butt joint, so that the signal radiation between the exterior and the interior of the shielding and enhancing mechanisms is effectively blocked, and then the interference shielding performance of the cable interface is greatly improved.

The invention relates to the technical field of semiconductors, and discloses a packaging structure and a display device. The packaging structure comprises a metal support, a driving chip, a light-emitting assembly, a packaging piece and a metal cover plate. Wherein the metal support comprises a plurality of pins, a first face and a second face, the first face and the second face are oppositely arranged, the driving chip is arranged on the first face of the metal support and used for controlling the light-emitting state of the light-emitting assembly, and the light-emitting assembly is arranged on the second face of the metal support and electrically connected with the driving chip through the metal support. The packaging piece is arranged on the metal support, the packaging piece fixes the metal support and wraps the driving chip and the light-emitting assembly, the pins surround the driving chip and are partially exposed out of the packaging piece, and the metal cover plate is arranged on the side, away from the light-emitting assembly, of the driving chip and covers the whole driving chip. According to the packaging structure and the display device provided by the invention, the signal interference problem of the driving chip in the prior art can be solved, so that the use performance of a product is greatly improved.

The invention discloses an RFID scaleplate scale device with a communication micro passage and a building method of the RFID scaleplate scale device with the communication micro passage. The RFID scaleplate scale device with the communication micro passage comprises two or more micro passage assemblies, a channel converging rail, a scaleplate pointer, a shielding assembly and a scaleplate. Each micro passage assembly further comprises a micro channel outlet embedded into a through hole of the channel converging rail, the scaleplate pointer is arranged on the shielding assembly, one end of the scaleplate pointer is directed at the scaleplate, and the interval between every two adjacent micro passage assemblies corresponds to the scales on the scaleplate. The shielding assembly can move on the channel converging rail along with the scaleplate pointer in two directions, when the shielding assembly moves to the position above any one micro channel outlet along with the scaleplate pointer, the shielding assembly connects or disconnects the communication between an RFID electronic tag corresponding to the micro channel outlet and an external RFID system, and therefore changes of an external measurement angle or linear displacement are obtained. The RFID scaleplate scale device with the communication micro passage and the building method of the RFID scaleplate scale device with the communication micro passage have the advantages of being simple in measurement, convenient to built and capable of being identified in a non-touch mode and achieving real-time detection, and can be widely applied to the field of engineering measurement.