PFC coil device and use method

Abstract

The invention discloses a PFC coil device, and relates to the technical field of PFC coil devices. The transformer mainly comprises winding frameworks, a U-shaped magnetic core and an arc-shaped sleeve shell, the number of the winding frameworks is two, wires are wound around the winding frameworks, slots are formed in one ends of the winding frameworks, the two ends of the U-shaped magnetic core are movably inserted into the two slots respectively, the peripheral side of one end of each winding framework is sleeved with a mounting plate, and the mounting plates are movably inserted into the slots respectively. A mounting plate is arranged on the U-shaped magnetic core, a clamping block is mounted on the mounting plate, a plurality of uniformly distributed heat dissipation holes are formed in the winding framework in a penetrating manner, an insertion opening extending along the track of the inner side of the arc-shaped sleeve shell is formed in the inner side of the arc-shaped sleeve shell, the arc-shaped sleeve shell movably sleeves the U-shaped magnetic core, and clamping plates fixedly sleeve the peripheral sides of the two ends of the arc-shaped sleeve shell. And a clamping groove is formed in the clamping plate. Automatic coil winding can be achieved, efficiency is improved, stability is high, labor cost is saved, meanwhile, heat dissipation is facilitated, and normal use is not affected.

Description

technical field [0001] The invention relates to the technical field of PFC coil devices, in particular to a PFC coil device and a use method. Background technique [0002] PFC means "power factor correction". Power factor refers to the relationship between effective power and total power consumption (apparent power), that is, the ratio of effective power divided by total power consumption (apparent power). Basically, the power factor can measure the degree to which electricity is effectively utilized. When the value of the power factor is larger, it means that the power utilization rate is higher. Power factor is a parameter used to measure the power efficiency of electrical equipment, and low power factor represents low power efficiency. The technology to improve the power factor of electrical equipment is called power factor correction. [0003] There are two types of PFC at present, one is passive PFC (also called passive PFC) and active PFC (also called active PFC). P...

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Problems solved by technology

[0004] At present, when winding the magnetic core in the PFC coil device, it is first necessary to inject the winding skeleton into the shape of the magnetic core, and then carry out integral winding. Since there are many shapes of the magnetic core, it is impossible to use all magnetic cores. For example, when winding a U-shaped magnetic core, manual winding is required to ensure the neatness of the winding, but the strength of manual winding is not easy to control, resulting in unstable winding structure and costly A lot of labor and time, and the existing PFC uses epoxy resin or adhesive tape to assemble the upper and lower magnetic cores. The manufacturing process is complicated. Although the wrapping is good, the heat dissipation is not good.

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