4results about How to "Thick enough" patented technology

The utility model relates to the field of photovoltaic technology, in particular to a photovoltaic connector. The utility model provides a photovoltaic connector which comprises a body and a connecting piece, the connecting piece is installed on the body through a tool, a guide groove and a limiting groove are formed in the connecting piece, and the sectional area of the guide groove is gradually reduced in the direction close to the limiting groove. Due to the fact that the sectional area of the opening of the guide groove is large and the side wall of the guide groove inclines towards the direction of the limiting groove, a tool can conveniently enter the limiting groove along the guide groove, installation of a connecting piece is convenient, due to the design of the guide groove, the tool can still be easily matched with the connecting piece to work when the sight is poor, blind screwing is achieved, and the operation difficulty can be reduced.

The invention provides a rotor assembly of a self-starting permanent magnet auxiliary synchronous reluctance motor and a motor, the rotor assembly comprises a rotor iron core and permanent magnets, the rotor iron core comprises an outer layer filling groove, an inner layer filling groove, permanent magnet grooves, a shaft hole and a rotor excircle, the shaft hole is located at the central axis position of the rotor iron core, and the permanent magnet grooves are located in the outer layer filling groove. The permanent magnet grooves are located in the periphery of the shaft hole so that the permanent magnets can be arranged in the permanent magnet grooves, the inner-layer filling grooves are located between the permanent magnet grooves and the outer circle of the rotor, and the outer-layer filling grooves are located between the inner-layer filling grooves and the outer circle of the rotor. The permanent magnet grooves, the inner-layer filling grooves and the outer-layer filling grooves form a magnetic barrier layer in the radial direction of the rotor, and the inner-layer filling grooves and the outer-layer filling grooves are filled with conductive conductors. According to the self-starting permanent magnet auxiliary synchronous reluctance motor, the problem of low starting torque of the self-starting permanent magnet auxiliary synchronous reluctance motor in the prior art can be solved.

The utility model discloses an auxiliary edge covering device of silicon wafer, at least including the conductor with silicon wafer interval distribution and located silicon wafer side, wherein, the positive and negative nature of the charge of conductor and the charge of silicon wafer is opposite, make the conductor to the edge covering paint of the side edge of silicon wafer produce electrostatic attraction, for realizing the auxiliary edge covering effect of silicon wafer, the utility model discloses for improving the protection coating thickness of the position of the adjacent surface intersection of silicon wafer side edge has obvious improvement effect, and single edge covering can obtain enough protection coating thickness, greatly improved the production speed of silicon wafer edge covering, and the static auxiliary edge covering device structure simple, easy to process of the application provides, and the equipment cost investment is less, is suitable for batch production.

The utility model discloses a battery case and monomer battery, this battery case includes the lower casing for accommodating electric core and the sealing element for sealing liquid injection hole, and the lower casing and sealing element are all fixedly connected to the upper casing, and the upper casing is rectangular board, and is equipped with liquid injection hole on one corner, wherein, the radius of liquid injection hole is recorded as R, and the distance of the center point of the circle of liquid injection hole to the nearest side edge of the upper casing is recorded as L1, and 0.1mm<=L1-R<=2mm. A battery case and monomer battery, the structure and position of setting liquid injection hole make that the battery case can keep the strength of having, and can effectively guarantee the sealing of liquid injection hole, simplify the manufacturing process simultaneously, effectively guarantee the safety of battery, improve the service life of battery.