30results about How to "No potential difference" patented technology

The present invention relates to a mother substrate and a method for manufacturing the same, the mother substrate comprising: a substrate, comprising at least one display region and pre-cutting regions in a periphery of the display region, wherein the display region comprises gate scanning lines and data scanning lines, the pre-cutting regions comprise a gate-line connecting line and a data-line connecting line electrically connected to each other, and the gate-line connecting line is electrically connected to all of the gate scanning lines in the display region, and the data-line connecting line is electrically connected to all of the data scanning lines in the display region substrate.

The invention relates to a method for preparing a molten salt electrodeposition aluminium membrane on the surface of an aluminium based composite material and is directed to the field of composite material technology. A mixed salt and an additive are adopted to prepare acidic electrodeposition liquid, the aluminium based composite material is taken as the cathode and aluminium is taken as the anode. A direct current electrodeposition is carried out after an electric chemical activation to help form an aluminium membrane on the surface of the composite material. According to the invention, the shortcoming that the anticorrosion effect of a protection membrane formed on the surface of the aluminium based composite material through a routine surface treatment method is not as good as that of a matrix metal surface protection membrane is overcome and the deficiencies that a continuous protection membrane can not be formed on the surface of the aluminium based composite material by an anodization, the integral thickness of a chemical conversion film is not large and the film formed at the particle sites is bad are compensated.

The invention relates to an intelligent cable connector. The intelligent cable connector has functions of a cable extending connector and an insulated connector. Besides, the intelligent cable connector is provided with a photoelectric extending connector which comprises semiconductive photoelectric separation fingerstalls, optical fiber protective jackets, an optical fiber connector, and heat-insulation binding belts, wherein the semiconductive photoelectric separation fingerstalls are both cylindrical heat shrinking tubes which are prefabricated with selective semiconductive material and are of one-in and two-out structure or one-in and multi-out structure, and are fastened to a metal shielding layer through the heat-insulation binding belts, the optical fiber protective jackets are metal jackets replacing a temperature measuring unit, and are matched with the photoelectric separation fingerstalls to protect temperature measuring fibers from being damaged, the number of the photoelectric separation fingerstalls is two, and the photoelectric separation fingerstalls ensure photoelectric separation. According to the intelligent cable connector, an original insulator structure and an original electric field structure are not damaged, photoelectric performance of an original product is not reduced, and meanwhile a function of on-line accurate monitoring of cable temperature is achieved.

The invention discloses a self-standing impact pressure resistance test device. The self-standing impact pressure resistance test device is characterized in that: the device comprises a container, a top cover, a rear cover plate, a top cover hydraulic ejector rod, a hydraulic rod, a hydraulic cylinder, an impact voltage generator body, a voltage divider, and a rail; the impact voltage generator body and the voltage divider are disposed flat in the container; the rail is hinged to the bottom end of the impact voltage generator body, and the voltage divider is connected to the rail in a slidingway; one side edge of the top cover of the container is hinged to the side edge of the top of the container; the lower portion of the rear cover plate of the container is hinged to the bottom plate ofthe container; one end of the hydraulic rod is hinged to the inner side of the bottom plate of the container; and the other end of the hydraulic rod is hinged to a triangular support arranged on themiddle part of the rear cover plate. According to the self-standing impact pressure resistance test device, the structure is compact; the operation is convenient; the test period is greatly shortened;and the test efficiency is improved.

The invention provides an inflatable compound insulated switch cabinet, which comprises a cabinet body, a cable chamber, a three-station operating mechanism, an closed gas box and an instrument chamber, wherein the cable chamber is arranged at lower part of the cabinet body, the closed gas box is arranged at an upper part position at the rear end in the cabinet body, vacuum circuit breakers are arranged in the closed gas box, vacuum circuit breaker operating mechanisms are arranged on the closed gas box, the upper part position at the front end in the cabinet body is sequentially provided with the instrument chamber and the three-station operating mechanism from top to bottom, each component in the cabinet body is provided with a conductive connector electrically connected with a lead wire, an insulating layer is arranged on each conductive connector when the conductive connector is connected with the corresponding lead wire. Since the surface of the conductive connector electrically connected with the corresponding lead wire on each component in the cabinet body is provided with the insulating layer, the insulating capacity of the switch cabinet is enhanced, and the cabinet combination of the inflatable compound insulated switch cabinet and the existing SF6 ring network cabinet of a user can be realized.

The invention discloses a mobile terminal comprising a board body for grounding; a main board mounted on the board body; an antenna mounted on the board body; a radio frequency line including a signal line, a ground wire surrounding the signal line and an insulating rubber surrounding the ground wire, the signal line being electrically connected between the main board and the antenna, and the insulating rubber having an opening; and a conductor piece which passes through the opening and is connected electrically to the ground and grounded with the board body. The ground wire of the radio frequency line is electrically connected to the board body through the conductor piece to be grounded so as to ensure that no potential difference is generated between the board body and the ground wire and the influence on the quality of signals on the signal line is further reduced.

The invention discloses a solid-sealed polar pole for primary and secondary deep fusion, which comprises an insulating shell, and is characterized in that the insulating shell is internally provided with a vacuum arc-extinguishing chamber, an electricity taking device, a current detection device, a first voltage sensor, a second voltage sensor, a metal shielding net, a first conductive insert, a second conductive insert, a third conductive insert and a fourth conductive insert; the insulating shell is provided with an inlet wire electric connecting piece and an outlet wire electric connectingpiece. According to the invention, the power taking device, the current sensor and the voltage sensor can be integrated in the pole; a capacitor electricity taking function can be achieved, the current condition can be monitored in real time, the two voltage sensors poured in the pole can monitor the voltage on the two sides of the fracture of the vacuum arc-extinguishing chamber, monitored voltage and current signals can be used for estimating the equipment state and supporting feeder automation, and the purpose that primary equipment and secondary equipment are deeply fused in one step is achieved.

The invention discloses an automatic mixing machine with multiple vibrating feeders and for powdery materials. The automatic mixing machine comprises a mixing frame, a power bracket and feed hoppers,wherein the mixing frame is provided with stirring rods, the vibrating feeders, a vibration chamber, a mixing tank and a collecting hopper from top to bottom; the power bracket is provided with a stirring motor, a mixing motor and a steering motor from top to bottom; a discharging barrel is arranged below the collecting hopper and is arranged on a trolley; the trolley is placed in a water tank; and the water tank is filled with water. According to the invention, a plurality of the vibrating feeders are adopted, a plurality of powdery raw materials are uniformly stirred in the respective vibrating feeders before mixing, and do not interact with each other or influence each other during mixing even under the rotary friction effect of the stirring rods; the raw materials are evenly mixed through vibration and rotation during mixing and the mixing process is free of rotary friction, so safety is greatly improved; and the automatic mixing machine is especially applicable to mixing of dangerous, explosive and highly-toxic powdery materials.

A radiant tube (4) for guiding a charged particle stream (10) has a hollow cylindrical isolation core (6) directly encompassing a beam-guiding hollow volume (8). The isolation core (6) is formed from a dielectrically acting carrier substrate (14) and an electrical conductor (16) held therein. The conductor (16) is divided into a plurality of conductor loops (20) completely encompassing the circumference of the isolation core (6) at different axial positions of the isolation core (6). The conductor loops (20) are galvanically connected to each other.

The invention discloses a heating device. The device comprises an insulating layer, a heating assembly, a hard heat preservation layer and a soft heat preservation layer; the insulating layer, the heating assembly, the hard insulating layer, the soft insulating layer and the heat preservation shell are sequentially arranged from the inner layer to the outer layer; the heating assembly is located on the plane of the insulating layer arranged on the insulating layer side by side; the heat preservation layer is located on the heating assembly and arranged on the heating assembly side by side; andthe heat preservation shell is located on the heat preservation layer and covers the heat preservation layer. The heating device has a good energy-saving effect and is used for industrial heating, such as heating of an asphalt machine, a lead melting machine, a pulp paper electric heating plate, an industrial square pipeline and a square plane box body of an extruder.

The invention relates to the technical field of power supply and distribution, in particular to a DC power supply and distribution structure. The structure comprises a control terminal, a DC cabinet,a bipolar DC bus and DC electric appliances, and the bipolar DC bus comprises a DC positive line, a DC neutral line and a DC negative line. The DC electric appliances are connected between the DC positive line and the DC neutral line, between the DC negative line and the DC neutral line and between the DC positive line and the DC negative line, wherein the DC positive line, the DC negative line and the DC neutral line are connected to the DC cabinet, and the control terminal is in signal connection with the DC cabinet. A two-pole three-wire system DC bus is adopted in the invention, and loadsare symmetrically arranged, so the voltage drop of the DC neutral line can reach zero at the minimum, the transmission distance is equivalent to that of a single-pole voltage-doubling two-wire system,and the engineering adaptability is extremely high, that is, the power supply voltage of an electric appliance is low, and electricity utilization is safer; the positive and negative poles of the DCelectric appliances are arranged in a staggered mode, thereby achieving the double-bus mutual backup, and avoiding the serious consequence that an existing single-bus scheme has a single-bus fault, and consequently all-road-section lamp turning-off is likely to happen.

The invention relates to a graphene base material semiconductive buffering water blocking tape. The graphene base material semiconductive buffering water blocking tape is capable of avoiding defects in the prior art, comprises a fluffy cotton base material, and a non-woven fabric base material; the fluffy cotton base material is fluffy cotton prepared through drying of an immersion coated semiconductive adhesive; the non-woven fabric base material is non-woven fabric prepared through drying of the immersion coated semiconductive adhesive; the surface of the fluffy cotton base material is coated with a semiconductive adhesive layer; the surface of the non-woven fabric base material is coated with a graphene water-proof powder layer; and the fluffy cotton base material and the non-woven fabric base material are bonded together.

The invention discloses a method for observing the three-dimensional discharge morphology of soil around a grounding device, which belongs to the technical field of high voltage. The method comprises the following steps of in a darkroom, placing a plurality of layers of x films with holes in the middle in a metal cylinder, penetrating a grounding rod through the axis position of the x film metal cylinder, and filling the metal cylinder with soil, taking out the metal cylinder from the darkroom, placing the metal cylinder in a preset range near a lightning impulse generator, and performing an impulse current/voltage test on the metal cylinder, acquiring a soil discharge picture, and determining the three-dimensional discharge morphology of the soil around the grounding device according to the acquired impact current waveform on the grounding rod, the potential difference waveform of the grounding rod and the metal cylinder and the acquired soil discharge picture. The morphology of soil discharge can be observed in all directions.

The invention is entitled method for fuel cell and fuel cell system regeneration and relates to a method for fuel cell regeneration. The fuel cell includes a membrane electrode unit having an anode and a cathode separated by a membrane and a circuit configured to conductively connect the anode and the cathode. The invention further relates to a fuel cell system which is arranged for carrying out such a method. According to the present invention, oxidized half-cell potential is attached to the fuel cell based on measured and/or calculated degree of contamination (k) of harmful substances contained in membrane electrode unit. In this way, the anode is exposed to an oxidant-containing environment.

The invention discloses a shielding structure of a voltage transformer. The voltage transformer is a 10kV voltage transformer with a fuse; the voltage transformer comprises a voltage transformer body; epoxy resin is cast on the transformer body; a phase A terminal and a phase B terminal of the voltage transformer are buried in the epoxy resin; the phase A terminal is electrically connected with the phase A primary terminal through a conducting wire. The shielding structure is characterized by comprising a first installing embedding element, a second installing embedding element and a shielding net assembly; the phase A primary terminal is connected with the second installing embedding element through a fuse; the first installing embedding element is connected with the second installing embedding element through an equipotential connection wire; the shielding net assembly is positioned between the phase A primary terminal and the second installing embedding element; in addition, the shielding net assembly is embedded in the epoxy resin. Through the shielding structure of the voltage transformer, no potential difference exist in the epoxy resin; the discharging generating mechanism is eliminated; further, the external discharging phenomenon due to structure reasons can be avoided; the electric performance defects inside the product can be better judged.