68results about How to "Eliminate short circuit" patented technology

The invention discloses a UWB (ultra wide band) array antenna, and mainly solves a problem that the bandwidth of a conventional array antenna is limited by the bandwidth of an antenna unit. The antenna comprises a dipole antenna array plate (1), a resistor-type frequency selection surface plate (2), a grounding plate (3) and a feed Balun (4). The antenna array plate consists of a plurality of dipole radiation periodic units, and each dipole radiation periodic unit comprises a dipole arm (111), a metal via hole (112) and a dielectric plate (113), wherein the dipole arms (111) are arranged on the upper and lower surfaces of the antenna array plate in a cross manner. The resistor-type frequency selection surface unit consists of a resistor paster and a dielectric plate, wherein the resistor paster consists of a square ring paster, a circular ring, and a rhombus paster. Through the close coupling between units, the reflection coefficient of the antenna at the band from 0.63GHz to 4.6GHz is less than or equal to -6dB, and the array bandwidth can be increased to 7.3 frequency multiplications. The antenna is used for FOPEN radars and through-the-wall imaging radars.

The invention relates to a liquid crystal display panel and a restoring method thereof. The liquid crystal display panel comprises an array substrate, a colored film substrate and signal leads on the array substrate, wherein restoring wires overlapped with the signal leads are arranged among the signal leads. The restoring method comprises: cutting off two ends of a shorted signal lead out of an applying range of a hermetical rim substratum by a laser beam, so as to ensure that two ends of the cut point are not communicated electrically; and then, dotting the overlapped area of the signal leads and the corresponding restoring wires by the laser beam, so as to puncture an insulating layer between each signal lead and each corresponding restoring wire, and melt and combine the signal lead and the corresponding restoring wire together, thereby communicating the signal lead and the corresponding restoring wire electrically. The liquid crystal display panel eliminates adverse display caused by short circuit between the signal lead and a gold ball particle through cutting off the shorted signal lead and utilizing the mode of continuing transferring signals by the restoring wire, thereby improving the yield of the liquid crystal display panel.

The invention provides a novel ultra-wideband tight coupling array, comprising a first matching layer, a second matching layer, an antenna array board, a frequency selection surface board and a feeding balun array. The antenna array board is positioned directly above the frequency selection surface board. The antenna array plate comprises a plurality of dipole radiation periodic units, each dipoleradiation periodic unit comprises a dipole arm, a coupling metal patch and an antenna dielectric plate; The frequency selective surface plate includes a plurality of frequency selective surface units, the dipole arm is composed of two first metal patches, the coupling metal patch includes two second metal patches, and each frequency selective surface unit is composed of two four-fold circular ring patches, a hexagonal star gap patch and two layers of frequency selective surface dielectric plates. A frequency selective surface is used to eliminate short-circuit points, the VSWR is less than 3in the frequency range of 1.14 GHz to 11.2 GHz, and the array bandwidth can be increased to 9.8 octaves, which can be used in communication and satellite tracking radar systems.

A hair dressing device that utilizes low voltage from a pair of batteries to generate temperature needed for curling and straightening the hair comprises an upper body and a lower body, each having an outer side and an inner side. A heating plate is mounted on the inner side of the lower body facing the upper body. At least one heating element is mounted on the heating plate to generate heat utilizing high precision printing at high temperature. An insulating member is interposed between the at least one heating element and the heating plate to eliminate short circuit. The lower body is coupled to the upper body around a hinge section. A thermal sensor and a controller are incorporated in the hair dressing device to monitor and control the temperature of the heating plate. The hair dressing device can be connected and disconnected from power using an ON/OFF switch.

The invention discloses a socket module. The socket module comprises an upper cover and a lower cover, wherein the edge of the upper cover is provided with a convex clamping pin; the lower edge of the upper cover is provided with an annular wiring hole, an L wire clamping hole, a PE wire clamping hole and an N wire clamping hole. The socket module also comprises a PE elastic sheet, an N elastic sheet and an L elastic sheet; the PE elastic sheet, the N elastic sheet and the L elastic sheet are inserted in the corresponding positions inside the upper cover; the lower cover is internally provided with support pillars; and two opposite edges of the lower cover are respectively provided with buckles and wire clamping hole adjusting blocks. The quick punching clamping-type connection is low in resistance, reliable, durable, stable and small in temperature rise, and fire risks are eliminated; hidden electrical dangers such as short circuit and contact oxidation are eliminated; single-point power fault is eliminated, and the power-off range due to multi-point fault is reduced; no broken connection points exist in the whole bus, and connection is firm and nodes are clean; over high temperature rise is avoided, and fire risks do not exist; power distribution reliability is high; the appearance size is small, the height and the thickness of the shell can be controlled in the 1U standard and space can be effectively saved.

The invention discloses a silencing box body for a box-type transformer with a modular structure. The silencing box body comprises a double-layer top cover module, a resonant sound absorbing wall body and a door connected below the double-layer top cover module, a silencing fence, a bottom beam, and a box body foundation provided with an inflow air silencer, wherein the bottom beam, the silencing fence and the box body foundation are fixed together through a positioning connecting rod; and the entire transformer box body is modularized, and comprises four parts. Due to the adoption of the silencing box body, large-scale production can be realized, and convenience is brought to transportation and field installation; meanwhile, convenience is brought to subsequent maintenance; and in particular, when the transformer is required to be overhauled, only a top cover is required to be detached, and the transformer is hoisted out of the box body, so that the cost is lowered.

The invention discloses an ammonia synthesis reactor and an ammonia synthesis technology. The ammonia synthesis reactor comprises an outer barrel and an inner barrel, wherein the inner barrel is separated into a plurality of sections of regions through sealing heads in the height direction; each section of region is internally correspondingly provided with a catalyst basket; heat exchange devicesare arranged in the catalyst basket in part of the regions; unreacted gas is heated so that reaction gas is cooled; a condition that a catalyst is deactivated is effectively avoided and the utilization period of the catalyst is long.

The invention provides a probe short-circuit prevention structure which is an insulated separation structure; each separation structure can be embedded in a probe body or a corresponding position of a probe seat, which is at the interval of the probes, thus causing each probe to have the efficacy of mutual separation when in use.

The invention relates to an electrode plate of battery and the lithium battery with said electrode plate. Wherein, the four angles of said electrode plate all are smooth curve angles. With said inventive electrode plate, when coiling or layering the anode plate, baffle film and the cathode plate to form the electrode core, the short circuit or micro short circuit of battery caused by breaking the baffle film with four shape angles can be avoided, to improve the safety of battery.

The present invention relates to a frequency-variable driven washing machine, which is characterized by that in said washing machine the electric network power supply is converted into variable frequency and two-phase power source whose time lag is equal to 1/4 cycle to drive two-phase symmetrical winding motor of space phase difference Pi/2 electric angle. Its one technical scheme is as follows: electric network power source is converted into variable frequency power source by means of rectifying-filtering circuit and inversion circuit, its rectifying-filtering circuit is formed from positive half-wave rectification filtering circuit and negative half-wave rectification filtering circuit and has a common end with power supply circuit of electric network, and its inversion icrcuit is double half wave 4 unit, and its uses existent washing machine motor. It possesses the excellent performance of symmetrical motor, and its structure is simplified and cost is reduced.

The invention relates to a treatment process for the edge of a coated-type alkaline accumulator pole piece and auxiliary edge-covering equipment. The process comprises the following steps of: covering an alkali-resistant insulating material having a width of 2-10 mm on the edge of foamed nickel by an automatic edge-covering machine before filling active substances in a cell pole piece preparing raw material namely foamed nickel; and compressing the part of the foamed nickel covered by the alkali-resistant insulating material until the thickness of the part is less than 1.5 mm; and finally filling the active substances in the edge-covered foamed nickel. After the process method is adopted, because the burred edge of the foamed nickel is covered by the smooth insulating material, the edge has no need to be trimmed during the subsequent machining; and because the burred edge of the foamed nickel is covered by the smooth insulating material, the edge cannot be damaged during the subsequent machining for the pole piece, and a powder in the pole piece cannot fall off, so that the problems of short circuit and low voltage caused by the burrs on the edge of the pole piece and the powder falling-off of the edge during the use process of the accumulator are eliminated.

Provided is an optical pickup device with which a short-circuit can be released from above and below. The optical pickup device (15) is provided with: a housing (15B) formed by ejecting a resin material in a prescribed shape; an actuator (15D) that is positioned on the top surface of the housing (15B) so as to hold an objective lens (17); a circuit board (15A) that is fixed to the main surface of the housing (15B); and a connector (15C) that is attached to the top surface of the circuit board (15A). A second short-circuit part (25) and a first short-circuit part (24) are disposed on the top surface and the bottom surface of the circuit board (15A), and a built-in light-emitting chip is protected from electrostatic discharge damage by shorting either one of the short-circuit parts.

The invention discloses an entrained-flow bed gasifier comprising a gasification chamber and a radiant syngas cooler which can be connected with the bottom of the gasification chamber in a detachable manner, wherein a main process burner is arranged at the top of the gasification chamber; the gasification chamber is provided with a furnace body; a plurality of rows of sub-process burners are arranged on the outer wall of the furnace body; a hearth is arranged in the furnace body; a gasification chamber cooling wall is arranged between the furnace body and the hearth; an outer-layer cooling wall and an inter-layer cooling wall are arranged on the outer wall and at the center axis of the radiant syngas cooler respectively; and a slag pool is arranged at the bottom of the radiant syngas cooler and communicates with a circulating water pipeline for supplementing slag pool circulation water into the slag pool. The entrained-flow bed gasifier provided by the invention has the advantages of high in gasification effectiveness, high in safety, clean, environmentally friendly, easy and convenient to operate and fast to start and stop.

The invention discloses an inner machine of an air conditioner, which comprises a housing, an evaporator, a draught fan, and an electric control box, wherein an air inlet and an air outlet are formed in the housing; an air passage communicated with the air inlet and the air outlet are arranged inside the housing; the electric control box is positioned at the outer part, next to the air outlet, of the air passage; and more than one air holes are formed in a baffle between the electric control box and the air passage. According to the inner machine of the air conditioner provided by the invention, the air holes, communicated with the air passage, are formed in the baffle of the electric control box to well solve the condensation problem of the electric control box and avoid the serious humidity environment for electric components, and therefore, the reliability is greatly improved; potential safety hazards, such as short circuit of the electric components, water seepage inside the electric control box and the like are eliminated; and the processing process that the air holes are formed in the baffle is simple.

The invention discloses a low-capacity nickel-hydrogen secondary battery and an assembly method thereof. The low-capacity nickel-hydrogen secondary battery comprises a steel case and a polar group, wherein, the polar group consists of a positive electrode, a negative electrode and a membrane, and is characterized in that: a substrate is arranged at the bottom of the steel casing; the assembly method of the low-capacity battery comprises the following steps: (1). assembling the steel casing: the steel case is well placed in a material case regularly with the mouth upwards, the substrate is arranged on the steel casing and then the substrate is pushed to the bottom of the steel case by a tool; (2). assembling the rear end: a wound polar group is put into the steel casing where the substrate is placed in the step (1), and then groove rolling, glue coating, spot welding, alkali injection, and sealing and assembly procedures are performed; (3) high-temperature laying: the assembled battery in the step (2) is laid with the head part of the battery downwards at high temperature; (4) formation: the formation is performed after high-temperature laying in the step (3) for 48 hours. The assembly method is simple and convenient, and the low-capacity nickel-hydrogen secondary battery obtained by adopting the assembly method is characterized by low cost and good battery performance.