Connection structure for capacitor fixing

Abstract

The present invention discloses a connection structure for capacitor fixing. The connection structure comprises a round capacitor, a capacitor fixing box pedestal, a capacitor fixing box upper cover, a confluence copper bar support sheet metal part, a lower insulation film, an upper insulation film, a lower fixing insulation plate, an upper fixing insulation plate, a confluence copper bar and a fixing bolt. The connection structure for capacitor fixing can overcome the defects that the capacitor fixing is not reliable, the capacitor terminal compaction cables are not reliable and the reliability of the capacitor is low for a long time; and moreover, the capacitor can go out lines from two ends to allow the current of the capacitor terminal to be relatively minimized so as to further improve the reliability of the capacitor, and a plurality of capacitors form modularization and can perform offline assembly, a single capacitor module only needs to lead out three cables from the confluence copper bar, and therefore the assembly and the maintenance efficiency in the whole machine is very high.

Description

technical field [0001] The invention relates to a connection structure with fixed capacitance. Background technique [0002] The circular capacitor is used as a filter and is widely used in the converter industry. Generally, the bottom of the capacitor is fixed by bolts, and three cables can be connected to the front and rear of the top terminal for electrical connection. At present, capacitors are generally only fixed with bolts at the bottom. Due to the high capacitance, only the bottom bolts are used for fixing. Long-term vibration will cause the fixing bolts to loosen easily. There is a risk of fixing. After the fixing fails, it may even cause bigger problems such as short circuit; this capacitor is in a cabinet. The amount of usage is large, and it is generally fixed directly in the cabinet, and then connected in the cabinet, which is extremely inconvenient to operate and has a great impact on subsequent maintenance efficiency; the connection of this capacitor is drawn ...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a connection structure with fixed capacitors. This technology can overcome the defects of unreliable fixed capacitors, unreliable compression of capacitor terminals on cables, and low long-term reliability of capacitors. At the same time, capacitors can be Both ends lead out, so that the current borne by the capacitor terminal is relatively minimum, which can further improve the reliability of the capacitor. At the same time, several capacitors form a modular form and can be assembled offline. A single capacitor module only needs to lead three cables from the busbar. Assembly and maintenance efficiency in the complete machine

Images