Mowing power device and mower with same

Abstract

The invention provides a mowing power device and a mower with the same, and belongs to the technical field of garden tools. The technical problems of poor heat dissipation effect and the like of the mowing power device are solved. The mowing power device comprises a shell, a motor seat and a shell connecting seat, wherein the shell and the motor seat are hermetically and fixedly connected by the shell connecting seat, a motor is arranged in the motor seat, and an output shaft of the motor is fixedly connected with a centrifugal fan and a mowing blade; a battery bin seat, a battery bin cover which is in butt joint with the shell and an air inlet are arranged on the shell, a filter grid is arranged between the battery bin seat and the battery bin cover, and a controller assembly positioned below the filter grid is arranged in the shell; two ends of the motor are provided with a motor front end cover with a plurality of first ventilation holes and a motor rear end cover with a plurality of second ventilation holes, the bottom of the motor seat is provided with ventilation holes, and the air inlet, filter grid holes, the first ventilation holes, the second ventilation holes and the ventilation holes form a heat dissipation air channel. The heat dissipation effect of the mowing power device is improved.

Description

technical field [0001] The invention belongs to the technical field of garden tools, and relates to a mowing power device on a lawn mower and a lawn mower with the mowing power device. Background technique [0002] A lawn mower, also known as a weeder, lawnmower, lawn trimmer, etc., is a mechanical tool used to trim lawns, vegetation, etc. For lawn mowers, the more important part is the power head, which can also be called the mowing power device. The power head mainly includes the motor, controller assembly, lithium battery, etc. The power of lawn mowers on the market The heat dissipation effect of the head is generally not good, which will easily cause the motor in the power head to burn out, the heat generated by the power components of the controller cannot be completely taken out, and the life of the controller will be shortened. [0003] Chinese patent (publication number: CN105940870A; public date: 2016-09-21) discloses a power head on a lawn mower, including a casin...

AI Technical Summary

Problems solved by technology

[0004] When the power head in the above-mentioned patent documents is working, the motor rotates to drive the fan to rotate, and the wind is drawn downward from the top of the wind collecting cover, thereby taking away the heat emitted by the motor control board. Since the motor top cover is sealed (the motor top No air inlets can be opened on the cover, because the lawn mower has rain requirements. When the upper opening is opened, water will enter the motor control panel from the top, which does not meet the rain safety requirements of the lawn mower), so the wind can only Entering from the air inlet on the lower part of the casing, this method has the following problems: 1. The air inlet plate is easy to let dust or broken grass adhere to the air inlet, especially for lawn mowers, when there is outdoor mowing , dew is easy to adhere to the air inlet plate, and after a period of use, the air inlet plate will lose its air intake function and cannot achieve a good cooling effect. At the same time, it is inconvenient to clean the air inlet plate, resulting in the risk of product failure

2. The controller is outside the wind gathering cover, and the motor is inside the wind gathering cover, so the heat generated by some controller power components cannot be completely taken out, which will cause the temperature rise of the controller to be too large for a long time and cannot achieve good cooling Effect

3. The structure of the power unit is too complicated, and the fan is placed inside the power unit, which will easily damage the wiring harness, and there are certain safety hazards

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