Large-capacity power capacitor and manufacturing method thereof
The technology of a power capacitor and its manufacturing method is applied in the direction of fixed capacitor lead-out, fixed capacitor shell/package, fixed capacitor components, etc. It can solve the problems of complex filling material process, waste of energy and materials, and difficult production, etc., to achieve The effect of saving raw materials, saving energy, and simple structure
Inactive Publication Date: 2012-05-23
宁波鼎盛中贝环保节能有限责任公司
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Problems solved by technology
[0002] At present, in the high and low voltage power supply system, a large number of power supply equipment are used, and many auxiliary components are used in the power supply equipment, among which there are large-capacity power capacitors. The power capacitors used at present are all special products sold on the market. The structure is a sealed shell on the outside, mostly made of aluminum, and a capacitor core is installed inside the shell. The capacitor core is made of multi-layer dielectric and insulating materials, and then the dielectric is led out with wires. The advantages of this capacitor: simple structure, easy to install and use Convenient, but its disadvantages: vacuum is required, the filling material process is complex, with special shell packaging, it is difficult to make, waste energy and materials, and is not environmentally friendly
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[0017] The structure of the large-capacity power capacitor of the present invention is given by the following examples and accompanying drawings.
[0018] Its structure consists of figure 1 Provide, be that the top is a cylindrical upper end cover (1), the center platform (4) above the upper end cover (1) has a central hole (5), the following is a cylindrical lower end cover (3), and the lower end cover (3 ) is cast with a column core (7) on the central platform (6), and a support rod (8) is vertically installed in the center between the upper and lower end covers. The middle of the capacitor is a cylindrical capacitor unit (2), and the capacitor unit (2) The multi-layer dielectric and insulator are rolled into a cylinder to form two electrodes, and the outermost is a sheath protective film. In order to ensure the high-current conductivity, each electrode on both sides of the center point on the end plane of the cylinder at both ends Form two solder joints respectively, conne...
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The invention relates to an auxiliary component of a power supply unit, comprising a cylindrical upper end cover in the upper part, a cylindrical lower end cover in the lower part and a cylindrical capacitor unit element in the middle part; wherein as for as the unit element is concerned, a multilayer dielectric and an insulator form two electrodes, a jacket protective film is arranged at the outermost layer, two welding points are arranged at each electrode at the two sides of the central point of the planes at the two sides of the cylinder, the two welding points are connected through a lead, the lead is welded at one welding point and extended out, the welding point serves as a capacitor connection end. In the manufacturing method, the upper end cover and the lower end cover are buckled at the two ends of the unit element for direct sealing and leads are extended out from the two ends of the unit element. The invention has the advantages of simple structure, easy production, conservation of raw materials and energy, environmental protection, thus being widely applied to a concentrated compensation and dynamic filtering compensator in an electric power substation.
Description
technical field [0001] The invention belongs to the technical field of power supply equipment components, and in particular relates to a large-capacity power capacitor for a power supply system and a manufacturing method thereof. Background technique [0002] At present, in the high and low voltage power supply system, a large number of power supply equipment are used, and many auxiliary components are used in the power supply equipment, among which there are large-capacity power capacitors. The power capacitors used at present are all special products sold on the market. The structure is a sealed shell on the outside, mostly made of aluminum, and a capacitor core is installed inside the shell. The capacitor core is made of multi-layer dielectric and insulating materials, and then the dielectric is led out with wires. The advantages of this capacitor: simple structure, easy to install and use It is convenient, but its disadvantages are: vacuum is required, the filling materi...
Claims
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IPC IPC(8): H01G4/224H01G4/228
Inventor 刘学宝林在荣石润波
Owner 宁波鼎盛中贝环保节能有限责任公司