Abstract: The present disclosure discloses a high-voltage DC relay with an auxiliary contact. The high-voltage DC relay includes a cover, a main contact leading-out terminal, a pushing rod assembly, a main movable contact piece, an auxiliary contact leading-out terminal and an auxiliary movable contact piece. The main contact leading-out terminal and the auxiliary contact leading-out terminal are respectively fixed on a top wall of the cover and their bottom ends respectively extend into a cavity of the cover. The main movable contact piece and the auxiliary movable contact piece are respectively matched with corresponding bottom ends of the main contact leading-out terminal and the auxiliary contact leading-out terminal. Two auxiliary contact leading-out terminals are arranged on both sides of a connecting line between two main contact leading-out terminals, and the auxiliary movable contact piece is also connected with a plastic body.

Abstract: A high-voltage DC relay of the present disclosure, including a housing, two main lead-out terminals, a main movable piece and a pushing rod component; and the relay further including two auxiliary lead-out terminals, an auxiliary movable spring, and an insulating partition plate, the insulating partition plate is disposed in a vertical plane on a side of the main movable piece, the auxiliary movable spring is on a side of the insulating partition plate opposite the main movable piece, and is disposed along the vertical direction, the insulating partition plate is configured to completely isolate the main movable piece and the auxiliary movable spring; the auxiliary movable spring is insulated from the movable assembly and fixed to the movable assembly through the insulating partition plate, so as to follow a movement of the movable assembly to achieve bridging with the two auxiliary lead-out terminals.

Abstract: A DC relay for anti-short circuit current and arc extinction includes two static contact leading-out ends, a movable contact piece in a straight sheet type, a pushing rod assembly, a fixed upper yoke, a follow-up yoke and a lower armature. The fixed upper yoke is fixed above the movable contact piece, corresponding to a position between the two movable contacts. The follow-up upper yoke is fixed on the pushing rod assembly, above the movable contact piece, corresponding to a position between the two movable contacts. The lower armature is fixed on a bottom end face of the movable contact piece. The fixed upper yoke, the follow-up upper yoke and the lower armature are respectively arranged in a width direction of the movable contact piece, and two magnetic conductive loops are formed in the width direction of the movable contact piece.

Abstract: A magnetic latching relay with a microswitch, including an insulation case and a microswitch, the insulation case is formed by a base and a cover being fixedly connected, an armature assembly is pivotally connected on the base, the base is provided with an assembly zone for accommodating the microswitch at a position close to the armature assembly, the housing of the microswitch is abutted on the bottom of the assembly zone and is positioned by the assembly zone, a portion of the housing close to the armature assembly is suspended, the space below the portion gives way to the movement of the armature assembly and/or the push card, the cover is pressed the housing; the armature assembly is provided with a pressure rod extending toward the cover, and the pressure rod is pressed or released a trigger spring sheet of the microswitch when the armature assembly is rotated.

Abstract: The present disclosure relates to a method for preparing a waterborne polyurethane material, including the following acts: mixing polyester polyol and toluene diisocyanate, heating up to react, adding a mixed solution of dimethylolpropionic acid and butanediol to react, adding polyethylene glycol to react, adding trimethylolpropane to react, adding a catalyst to react and testing NCO value until reaching 1-3% of the theoretical value, adding a solvent and stirring uniformly to obtain a polyurethane prepolymer, cooling the prepolymer to <15° C., adding triethylamine for neutralization, adding pure water for thorough emulsification, adding ethylenediamine for chain extension, removing the solvent to obtain the waterborne polyurethane material. The present disclosure also relates to a method for preparing gloves, including: cleaning a mold, adding coagulants and demoulding agents, immersing in the waterborne polyurethane added with cross-linking agents, and then drying.

Abstract: A hinge type bistable magnetic circuit structure, including a coil assembly, an L-shaped armature, an L-shaped yoke and a permanent magnet the L-shaped armature is configured on a side of the L-shaped yoke after rotating 180 degrees, and the two are together formed a frame-shaped profile, at two opposite diagonals of the frame-shaped profile, a junction is provided with a pre-set first gap; the L-shaped yoke includes a first and a second yoke portion, the coil assembly is arranged at and cooperated with the first yoke portion, one end of the permanent magnet is connected with the first yoke portion; the L-shaped armature includes a first and a second armature portion, the first armature portion is configured to cooperated with the other end of the permanent magnet so as to be able to perform a seesaw type movement, thereby forming a bistable magnetic circuit.