31results about How to "Does not conduct electricity" patented technology

The invention relates to the field of lighting lamps and particularly relates to an all-period-luminosity LED lamp tube. The all-period-luminosity LED lamp tube comprises a lamp tube shell, a lamp core and enc covers, wherein the lamp core is mounted in the lamp tube shell, and the end covers are connected to two ends of the lamp tube shell; the lamp tube shell is of a circular pipe shape with two open ends, lamp core fixing brackets for fixing the lamp core are arranged at two ends of the lamp tube shell, a driving circuit assembly is arranged at one end of the lamp tube shell and is connected with one end of the lamp core, and the lamp core is of a prismatic shape; and a plurality of LED chips are uniformly arranged on the surface of a prism, and two ends of the lamp cores are fixed on the lamp core fixing brackets to make the axis of the lamp core coincided with the axis of the lamp tube shell. According to the structure, the LED lamp tube has an all-period-luminosity lighting function and is simple in structure, strong in heat dissipation capacity and long in service life.

The invention relates to a magnetic switch for powering on and off of an autonomous underwater vehicle (AUV). A base is hermetically installed on a machine body of the AUV, an upper cover is in sealedconnection with the base, the two ends of a connecting piece are respectively provided with magnetic pieces and conductive pieces, and an elastic part is arranged between the connecting piece and theupper cover. Grooves for installing a contact or a convex body A are formed in the internal of the base respectively, and the magnetic piece at one end of the connecting piece is attracted and rotated by a bar-shaped magnet positioned outside the upper cover through the magnetic force with the upper cover positioned in between. The connecting piece is driven to rotate between the groove for installing the contact and the groove for installing the convex body A through the bar-shaped magnet. The connecting piece falls into the groove for installing the contact after the bar-shaped magnet is removed, and the conductive pieces contact with the contact to realize closing and connecting of the internal circuit of the machine body, or the connecting piece falls into the groove for installing the convex body A to realize disconnection of the internal circuit. The magnetic switch has the advantages of being simple in structure, convenient for operation, good in sealing performance and small in occupied space, frequent operation and the like can be achieved, and the service lifetime of the magnetic switch and the life of the machine body can be prolonged. The magnetic switch can be widelyapplied to various underwater devices.

The invention relates to the technical field of refrigeration, and aims at providing a novel phase change heat getting system good in cooling effect. According to the technical scheme, the novel phasechange heat getting system comprises a phase change heat getting loop allowing a phase change medium to circularly flow and an active refrigeration loop allowing a refrigerant to circularly flow. Thephase change heat getting loop and the active refrigeration loop are intersected into the same heat exchanger, the phase change medium and the refrigerant are subjected to heat exchange in the heat exchanger, and the system has good cooling effect and other electricity devices with high heat power.

The invention discloses an automatic live working lifting platform and a method thereof. The lifting platform includes a wire stripper for stripping off the cladding layer of the lapped section of the main line; The lapping of the main line lap section; the operating platform is used to carry the wire stripper and the lapping device; the insulating lifting column is installed between the ground and the bottom surface of the operating platform for adjusting the height of the operating platform; the method includes: a 1. Construction preparation; 2. Stripping the covering layer of the overlapping section of the main line; The invention does not require construction personnel to carry out manual electrified work at high altitude, is safe and reliable, does not cause electric shock, and can improve the construction efficiency of grid equipment installation and maintenance.

The invention discloses a spontaneous heating type floor for an exercise room and a pavement method of the spontaneous heating type floor, and belongs to the field of floors. The spontaneous heating type floor for the exercise room comprises a spontaneous heating type floor body, the spontaneous heating type floor body comprises a spontaneous heating board body, a heat conductive type veneer is arranged on the upper side of the spontaneous heating type floor body, and a rapid heating type heat conductive interlayer is arranged between the heat conductive type veneer and the spontaneous heatingtype floor body. Compared with the prior art and compared files, according to the scheme, even if a board body is damaged and generates cracks, water on the board surface permeates into a board, thepermeated water can be absorbed by wet drain filling ropes in the rapid heating type heat conductive interlayer, the wet drain filling ropes are heated and dried by using spontaneous heating of the board body, the board body cannot be further damaged, pure insulating materials are adopted in the rapid heating type heat conductive interlayer, the occurrence rate of electric conduction and electricleakage and the electric leakage potential safety hazards are greatly reduced, in addition, a user can heat floors of an area in which the user is located according to self requirements, and the userexperience is improved.

A charging protection device for an electronic device disclosed by the present invention comprises a device main body, a base and a fixing seat, the device main body is fixedly connected to the base, the device main body is cylindrical, the center position of the device main body is provided with a first circular through hole, and the first circular through hole penetrates through the base. A first round through hole is formed in the top of the device body, buckles are arranged at the bottom of the base around the first round through hole, the top of the device body is sleeved with a waterproof ring, a fireproof layer is arranged below the waterproof ring, an exhaust hole is formed in one side of the device body, and a second round through hole corresponding to the first round through hole is formed in the center of the fixing base. Clamping grooves matched with the buckles are formed in the periphery of the second circular through hole. The charging protection device for the electronic device is reasonable and simple in structure, convenient and rapid to use, suitable for different types of vehicle models and easy to disassemble, and heat generated when a charger works can be released by arranging the exhaust holes.

The invention discloses a high-safety oil-immersed transformer that ensures stable and normal sound and temperature. It includes a transformer shell, a support base is installed on the bottom of the transformer shell through bolts, and a sealing top cover is installed on the top of the transformer shell through a connecting block. A support plate is installed under the sealing top cover through bolts, a support column is installed under the support plate through bolts, a compression plate is installed under the support column through bolts, and a circuit integration box is installed on the surface of the compression plate through bolts. A transformer is installed under the pressing plate through bolts, a protective casing is wrapped around the outside of the transformer, a placement plate is welded inside the transformer casing, and a mounting plate is nested on the surface of the transformer casing. The present invention solves the existing oil-immersed transformer problems of poor heat dissipation, high noise during operation, and the risk of short circuit leakage due to internal high temperature by providing heat dissipation plates, heat dissipation filling, air outlets and diversion grooves.