69results about How to "No leakage phenomenon" patented technology

The invention discloses a self-heating floor which comprises a floor main body and an electrothermal component, wherein the floor main body comprises an upper part main body and a bottom plate, the electrothermal component comprises a circuit device, a first mounting seat and a second mounting seat, the first mounting seat and second mounting seat of the electrothermal component are used as powersupply plug connectors on the left and right sides of the floor main body, the circuit device of the electrothermal component and the corresponding parts of the first mounting seat and the second mounting seat are arranged between the upper part main body and the bottom plate; the first mounting seat is a component of which the socket part is hermetically plugged in and electrically connected with that of the second mounting seat of the electrothermal component of the adjacent self-heating floor when in use; and the second mounting seat is a component of which the socket part is hermetically plugged in and electrically connected with that of the first mounting seat of the electrothermal component of the adjacent self-heating floor. The self-heating floor and the electrothermal component provided by the invention are simple in structure and convenient for realization of industrial production.

The invention discloses an integrated spontaneous heating floor board which comprises a floor board main body and a spontaneous heating assembly. The floor board main body comprises a face plate and a bottom main body. The spontaneous heating assembly is arranged between the face plate and the bottom main body. The face plate is fixedly connected with the bottom main body from top to bottom. The integrated spontaneous heating floor board is characterized in that the floor board main body is provided with an internal cavity. Plug-in portions are arranged on the periphery of the floor board main body. The spontaneous heating assembly is a waterproof electric heating assembly which comprises electric heating pieces, a transmission unit and two mounting seats, wherein the two mounting seats are respectively arranged at the left end and the right end of the electric heating pieces. The electric heating pieces are electrically connected with the transmission unit through electrodes of the electric heating pieces and corresponding electric connection components. The electric heating pieces of the spontaneous heating assembly are arranged in the internal cavity of the floor board main body. The mounting seats of the spontaneous heating assembly are fixedly connected and embedded in the floor board main body, and the two mounting seats are respectively exposed out of the left side and the right side of the floor board main body. Therefore, the left mounting seat and the right mounting seat of the spontaneous heating assembly are used as corresponding power supply plug connecting pieces on the left side and the right side of the integrated spontaneous heating floor board.

The invention discloses a phase change heat storage type electric heating floor. The phase change heat storage type electric heating floor comprises a floor main body and an electric heating assembly. Socket positions which are connected with the adjacent electric heating floor portions during usage are formed on the periphery of the floor. The phase change heat storage type electric heating floor is characterized by also comprising a flat phase change unit; the floor main body comprises a panel component and a base plate; the corresponding positions of the panel component and the base plate in the vertical direction are bonded and fixed together to form the floor main body, wherein the inside of the floor main body comprises the first installation space; the electric heating assembly comprises an electric heating piece, a transmission unit and connection sockets which are located at the front end and the rear end of the electric heating piece respectively and used for performing electrical connection externally; the electric heating piece and the phase change unit are fixedly arranged in the first installation space of the floor main body; the panel component, the electric heating piece, the phase change unit and the base plate are arranged in turn from top to bottom and are in close contact with each other in turn in the vertical direction.

The invention discloses a water-proof type self-heating floor which comprises a floor main body and a self-heating component. The floor main body comprises an upper portion main body and a base plate. The floor main body is adhered to the upper end face of the base plate by the lower end face of the upper portion main body. An inner portion cavity body is arranged between the upper portion main body and the base plate. The water-proof type self-heating floor is characterized in that power supply inserting pieces belonging to the self-heating component are arranged on the left side and the right side of the floor body, the self-heating component is a water-proof type electric heating component, an electric heating sheet of the self-heating component is arranged in an inner portion cavity body between a lower portion main body and an upper portion panel, a socket part is a water-proof connecting piece which is capable of being mutually connected with a corresponding and adjacent double-socket part of the self-heating component of the water-proof type self-heating floor in a plugged mode, and is fixedly and electrically connected with and mutually sealed with the corresponding and adjacent double-socket part of the self-heating component of the water-proof type self-heating floor when used, and the double-plug part is a water-proof connecting piece which can be mutually connected with the corresponding and adjacent socket part of the self-heating component of the water-proof type self-heating floor in a plugged mode, and can be fixedly and electrically connected with and mutually sealed with the corresponding and adjacent socket part of the self-heating component of the water-proof type self-heating floor.

The invention discloses a laser marking method of a silicon wafer and a manufacturing method of a heterojunction cell. The laser marking method comprises the steps: enabling a pattern of a marking line to generate a marking code through setting marking parameters; inputting the marking code to a laser; and the laser being used to emit light beams to the surface of the silicon wafer according to the marking code, and the light beams being used to etch the surface of the silicon wafer to obtain the marking line. The marking line comprises a scribing line formed on the surface of the silicon wafer, and the scribing line comprises a solid line segment formed after the surface of the silicon wafer is etched by the laser and a dotted line segment which is not etched by the laser. According to the laser marking method, the mechanical damage to the silicon wafer in the laser marking process can be reduced to the greatest extent, the damaged surface formed on the silicon wafer is relatively smooth, and the silicon wafer does not have a shadow under PL imaging; and after the heterojunction cell is prepared, the electric leakage phenomenon at the laser code printing position is less, the electrical property is better, and the cell conversion efficiency is high. In addition, after the silicon wafer is textured and cleaned, a pyramid textured surface can be formed at the etching position, so that the influence of the silicon wafer on light absorption is avoided.

A novel CVT dry-type electromagnetic unit comprises an intermediate transformer, a compensation reactor and a quick saturation damper. The primary leading-out terminal of the intermediate transformer is connected with the medium-voltage terminal of a capacitive voltage divider through a boss, a secondary leading-out terminal of the intermediate transformer is connected with the low-voltage terminal of the capacitive voltage divider through a first concave regulating box. The intermediate transformer, the compensation reactor and the quick saturation damper are formed in a pouring and packaging mode through insulation resin and installed in a box. The novel CVT dry-type electromagnetic unit is compact in structure, free of condensation, low in partial discharge, high in precision, free of oilation and good in sealing and insulation performance.

The invention discloses a spontaneous heating assembly. The spontaneous heating assembly is structurally characterized in that the spontaneous heating assembly is a waterproof type electric heating assembly and comprises electric heating sheets, a socket part located at one end of left and right ends of each electric heating sheet and a double-plug part located at the other end of the left and right ends of each electric heating sheet. One to five electric heating sheets are arranged and all the electric heating sheets are arranged on the same plane in parallel. A thin-sheet-shaped sealing waterproof type electric heating device of an electrode is respectively arranged at each one of the left and right ends of each electric heating sheet. The electric heating sheets are mutually connected in parallel or in series. The socket part is a waterproof connection part which can be mutually plugged, fixedly and electrically connected and mutually sealed with the double-plug part of the corresponding adjacent spontaneous heating assembly in a use process. The double-plug part is a waterproof connection part which can be mutually plugged, fixedly and electrically connected and mutually sealed with the socket part of the corresponding adjacent spontaneous heating assembly in the use process.