Centrifugal cutter and grass trimmer

Abstract

The invention provides a centrifugal cutter. The centrifugal cutter comprises a cutter body, the top surface of the cutter body is provided with a plurality of blades, which are distributed around the central line of the cutter body in a radiating mode, and the cutter body and the blades are of an integrally formed structure. The invention also provides a grass trimmer. By integrating the blades on the upper portion of the centrifugal cutter, during grass trimming, the internal control circuit board and the motor of the grass trimmer can achieve the aims of air circulation and further cooling, meanwhile, meanwhile, pressure difference can be formed between the top and the bottom of a cutter rest and further micro circulation can be formed to exhaust grass clippings and dust, and further dustproof effects can be achieved.

Description

technical field [0001] The invention relates to a centrifugal cutterhead for a lawn trimmer, especially an automatic, self-guiding, or self-supporting lawn trimmer and a lawnmower using the centrifugal cutterhead. Background technique [0002] Existing lawn trimmers have the problem of overheating of electrical components due to high cutting load, high ambient temperature or a combination of these two conditions during work. Overheating can affect the performance of electronic devices and batteries, especially lithium batteries. Automatic lawn This is especially true with trimmers. Lawn trimmers are typically outside in the sun most or all of the time, and in the case of lithium batteries, the electronics are often constructed to prevent product operation when the battery cells are above a certain temperature limit, in order to prevent permanent damage or in extreme cases catch fire. Therefore, additional cooling equipment is needed for these devices, such as reaching a ce...

AI Technical Summary

Problems solved by technology

Therefore, additional cooling equipment is needed for these devices, such as reaching a certain cooling effect by the wind force of the rotating blade, but due to the low power provided to the cutting blade in this trimmer, it is not enough to only rotate and cool through the blade; It is also possible to add a cooling fan, but additional power requirements are required for fan operation, and it will take up a lot of space

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