51results about How to "Avoid Electrical Failures" patented technology

The invention provides a fall protection and reverse-connection protection system and method for automobile starting power source wiring clamp. The fall protection and reverse-connection protection system includes a system provided with an internal battery, a switch circuit, an access device, a wiring clamp, an MCU control circuit, an external battery detection and voltage sharing circuit, an output wiring clamp current detecting circuit and a reverse-connection protection circuit. The inner battery is connected to the access device through the switch circuit. The MCU control circuit is arranged at the front end of the switch circuit. The external battery detection and voltage sharing circuit is connected between the switch circuit and the access device. The access device is connected to the output wire clamp current detection circuit. The reverse-connection protection circuit is connected with the MCU control circuit. The invention also provides a fall protection and reverse-connection protection method for the automobile starting power source wiring clamp. Voltage condition of an external power source can be detected effectively and different operation actions can be taken according to the voltage condition of the external power source, so that normal starting is ensured.

The invention provides a third-rail lower pneumatic current collector. Technical problems of the traditional three-rail lower pneumatic current collector for a rail transit vehicle that a plurality of cylinders are used, a plurality of gas circuits are arranged, the operation is complicated, the cost is high and the like are mainly solved. The third-rail lower pneumatic current collector is characterized by comprising a mounting back plate assembly(1), a cylinder crank connecting rod assembly(2), a tension spring assembly (3), a left flexible bearing seat (4), a right flexible bearing seat (7), an insulated swinging arm (5), a current collecting slip shoe (6), an upper insulated protective cover (8), a lower insulated protective cover (9) and the like, wherein the left flexible bearing seat (4) and the right flexible bearing seat (7) are connected with the swinging arm; and the current collecting slip shoe (6) is mounted on the swinging arm (5). As only one cylinder is needed to be connected with a shoe derailing crank assembly, the third-rail lower pneumatic current collector provided by the invention, is simply and reliably structured and convenient to operate and maintain. The third-rail lower pneumatic current collector provided by the invention can be widely applied tovarious three-rail current collectors for the rail transit vehiclesor used for improving the original current collectors.

The invention discloses a wire protection tube for equipment used in the wet process of printed circuit boards. The wires of the equipment used in the wet process of printed circuit boards are covered with protective tubes. The initial section of the protective tube is curved upwards, so that the protective tube can Effectively prevent the liquid from entering the protective tube, and the lowest part of the entire protective tube is provided with a water outlet, so that even if there is liquid in the protective tube, it can also be discharged from the water outlet. Therefore, the wire protection of the equipment used in the wet process of printed circuit boards The tube can effectively avoid electrical faults and safety accidents, and has a simple structure and is easy to implement.

The invention provides a motor assembly terminal stud device which relates to the technical field of mechanical process equipment. The motor assembly terminal stud device is used for motor manufacture and repair. The motor assembly terminal stud device is formed by four plates which comprise an inverted '7'-shaped plate (1), a '7'-shaped plate (2), and two '1'-shaped plates (3). The inverted '7'-shaped plate (1) and the '7'-shaped plate (2) are fixed to a base wire out seat. The '1'-shaped plates (3) clamp wiring bolts from side faces. Through semicircular holes, the wiring bolts are clamped from the side faces to maintain a vertical state, a mounting plate with an insulation sleeve sleeves the wiring bolts in the vertical state, pressing nuts are screwed, pulling bolts is disassembled and plates are orderly removed from the side faces, the mounting plate with an insulation sleeve and the base wire out seat are installed in a cooperative way, the wiring bolts are assembled to required positions and are pressed to the mounting plate with the insulation sleeve by using the pressing nuts, and the assembly of the wiring bolts is completed.

The invention discloses a multifunctional intelligent pipeline blower. The multifunctional intelligent pipeline blower comprises an air inlet pipeline, a working shell and an air outlet pipeline. Theair inlet pipeline and the air outlet pipeline communicate with the left and right sidewalls of the working shell correspondingly. The outer end of the air inlet pipeline is provided with a netted cover plate, an air inlet and a reset spring arranged at the air inlet and abutting against the cover plate. The cover plate can cover the air inlet. A filter screen is arranged at the inner end of the air inlet pipeline. The filter screen is fixedly connected with the inner wall of the air inlet pipeline in the circumferential direction. The multifunctional intelligent pipeline blower further comprises an electric cylinder. A telescopic shaft of the electric cylinder is connected with one end of a pull rope, and the other end of the pull rope is connected with the inner surface of the cover plate. An infrared sensor array is arranged in the center of the filter screen. The inner wall of the air outlet pipeline is provided with a temperature sensor and a humidity sensor. The working shell comprises a shell body and a controller arranged on the shell body. The shell body comprises an inner wall and an outer wall. An electric heating resistance wire and a sound reduction board are distributed in a cavity between the inner wall and the outer wall in sequence. The multifunctional intelligent pipeline blower is good in automation level, capable of improving the ventilation environment, controllable in temperature and humidity and good in data observation effect.

The invention relates to a belt machine emergency stop operation device and belongs to the field of belt conveyors. The belt machine emergency stop operation device comprises an emergency stop switch, a belt passage corridor, a belt machine and a wiring device, wherein the belt machine is arranged in the belt passage corridor and extends along the length direction of the belt passage corridor; the emergency stop switch fixed at the top end of the belt passage corridor comprises a switch body, a pedestal, a pull rod and stay wires; the switch body is a normally open or normally closed contact; the switch body and the stay wires are fixed at the top end of the belt passage corridor through the pedestal; the pull rod is rotatably connected with the switch body and drives the switch body to switch on or off a control loop; the stay wires are arranged on the two sides of the belt machine correspondingly and extend along the length direction of the belt passage corridor; the stay wires which are arranged on the two sides of the belt machine correspondingly and are in driving connection with the pull rod covers channels on the two sides of the belt machine; and when the belt machine encounters failure, an operator can operate the stay wires on any side, so that shutdown of the belt machine is realized timely and quickly and the safe reliability of the belt machine is improved.