121results about How to "Easy breakdown" patented technology

The invention discloses a device for reducing grounding resistance of grounding grid. The device comprises at least one horizontal grounding conductor which is fixed at the bottom of the tower. The horizontal grounding conductor is provided with at least one spark thorn conductor which is fixed between the middle part of the horizontal grounding conductor and the impingement current injection point of the horizontal grounding conductor. By setting the spark thron conductor at the front middle of the impingement current injection point near the horizontal grounding conductor, a large part of the current flow of the injection point will flow to the spark thorn conductor, so that the equivalent radius of the spark effect of the spark conductor is enlarged, the soil is more prone to breakdown, and the spark effect is very significant, which, at the same time, has a great influence on the current distribution of the horizontal grounding conductor, so that the resistance value of the grounding resistance is reduced, and the resistance reduction effect is remarkable.

The invention discloses a laser path of a laser welding point, and a laser welding method. The laser welding method comprises the steps of fixing a product to be welded onto a two-dimensional platformthrough a fixture, utilizing a pulse laser for scanning welding a welding point in a welding area of the product to be welded, and dividing a laser scanned path graph of the welding point into threesegments, wherein the first segment is a straight-line segment or a curved segment, the second segment is formed by multiple reciprocating disjoint straight-line segments or curved segments, startingpoints of each two adjacent straight-line segments or curved segments are connected through a transition segment, the third segment is a straight-line segment or a curved segment, and the first segment, the second segment and the third segment are sequentially connected; and crossing the straight-line segments or the curved segments of the first segment and the second segment, crossing the straight-line segments or the curved segments of the third segment and the second segment, and during a laser scanning welding process, blowing a protection gas to the welding point. According to a speciallyedited point-shaped welding graph, a thin slice is welded through a single-pulse superposition track manner, multiple small molten pools are formed in the thin slice material, and the welding point with a large tensile force is obtained.

The invention belongs to the field of microelectronic technique and specifically relates to a method for improving the fatigue property of a CuxO memistor. The method removes a superficial CuO layer by means of plasma bombardment, or increases the electrical conductivity thereof, so that the method can reduce the current and voltage of the first-time write operation, protect the CuxO storage medium with resistance conversion property below the CuO layer from the damage of heavy current, and improve the fatigue property of the device.

A trench MOSFET with trench contact holes and a method for fabricating the same are disclosed. The MOSFET includes an N type substrate, an N type epitaxial layer on the substrate; a P well region on top of the epitaxial layer; a source region formed on the P well region; an oxide layer on the source region; a plurality of trenches which traverse the source region and the P well region and contact the epitaxial layer; a gate oxide layer and polysilicon formed in the trenches; a source contact hole and a gate contact hole, wherein the source contact hole and the gate contact hole have a titanium metal layer, a titanium nitride layer, and tungsten metal sequentially, respectively; a P+ implanted region; a source electrode formed above the source contact hole and a gate electrode formed above the gate contact hole.

The invention relates to a device for filtering a fluid medium transported in a pipeline, in particular to a backwashing filter which can filter impurities in the fluid medium in various use environments. The filter is provided with a driving device, a blowdown device, a filter shell and a filtering unit, the driving device is arranged at one side of the filter shell, the filter shell is internally provided with the blowdown device and the filtering unit, and one end of the blowdown device is connected with the driving device. The filter has the advantages of simple and compact structure, little occupied land and better filtering and backwashing effects, can work normally in various pressure conditions and solves the problems of tedious control process, multiple fault points and large resistance loss when the device runs existing in the prior art.

Resistance spot welding of a steel workpiece to an aluminum or an aluminum alloy workpiece can be facilitated by replacing the refractory aluminum oxide-based layer(s) on at least the faying surface of the aluminum or aluminum alloy workpiece with a protective coating that is more conducive to the spot welding process. The protective coating may be a metallic coating or a metal oxide conversion coating. In a preferred embodiment, the protective coating is a coating of zinc, tin, or an oxide of titanium, zirconium, chromium, or silicon.

A bed to a sofa conversion frame, without a seating area, a space reserved for the traditional bed, which is a conventional manufactured mattress, or ii) a conventional manufactured mattress and a box spring, or iii) a conventional manufactured mattress and a two rail frame, optionally with a box spring. The bed to a sofa conversion frame includes a backrest, a footer (optional) and a pair of armrests configured to be connected as a solid state and or assembled together to form a sofa frame around a traditional bed, wherein the backrest is movable from a sofa position to a bed position, in order to convert the frame from a sofa configuration to a bed configuration.

To provide a measurement device which allows long-term accurate measurement of voltage without adversely affecting a device under test, by ensuring a predetermined level of resistance to ESD and reducing leakage current. A measurement device includes a probe needle for contacting a device under test, a first FET for detecting voltage of the device under test, and a protection circuit for protecting the first FET from static electricity. The protection circuit includes a second FET having an oxide semiconductor film as a channel formation region.

The invention discloses a liquid solar cell with variable structure and adjustable photovoltaic effect and a preparation method of the liquid solar cell. The liquid solar cell comprises a container, wherein the container comprises a substrate and a surrounding wall; the surrounding wall is composed of a side wall and a top wall; the surrounding wall is fixed on the substrate to form the container; an upper electrode is arranged on the lower surface of the top wall; a lower electrode is arranged on the upper surface of the substrate; the container is filled with magnetoelectric liquid; the magnetoelectric liquid is prepared by mixing core-shell structure nanoparticles, a hydrophilic surfactant and oily base liquid; the cores of the core-shell structure nanoparticles are magnetic particles; and the claddings are ferroelectric particles. The preparation method of the liquid solar cell comprises the following steps: (1) preparing the upper electrode and the lower electrode; (2) preparing the container; and (3) adding the magnetoelectric liquid to the container to obtain the liquid solar cell.

A method of operating a fuel cell system in a vehicle that is switchable to a temporary stop mode and restarted from the stop mode. When, in certain driving situations, it is required to switch to the stop mode, it is then checked whether the operating conditions of the fuel cell system allow a switch to the stop mode. If the switch is allowed it takes place. When a restart of the fuel cell system is required on the basis of the vehicle the settings of the stop mode are cancelled again. The switch to the stop mode involves, with further existing electric contacting of the fuel cell, the air mass flow conveyed by the air conveying device being switched off or reduced to a predefined value and the pressure of the combustion gas supplied being reduced to a predefined value.