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Lawn mower electronics housing

A technology of electronic devices and lawn mowers, which is applied in the direction of cutters, harvesters, agricultural machinery and implements, etc., can solve the problems of restricted air flow and exacerbated heat problems, so as to avoid costs, improve reliability, easy maintenance and The effect of repair

Active Publication Date: 2019-07-09
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Instead of protecting the electronics, the hood can actually trap dust, dirt underneath which exacerbates the thermal problem as airflow becomes more restricted

Method used

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  • Lawn mower electronics housing
  • Lawn mower electronics housing
  • Lawn mower electronics housing

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] refer to figure 1 , shows a lawn mower 10 . The main mower components relevant to the present invention are the base 20 , electric motor 30 , battery 40 and electronics housing 50 .

[0023] Base 20 defines a cutting cavity 21 in which a cutting blade (not shown) is rotatably mounted. A motor 30 is mounted to the base, directly above the cutting chamber, and in use drives the cutting blades within the cutting chamber. A hole 31 is provided between the motor 30 and the base 20 so that air can be drawn into the cutting chamber by the action of the cutting blade. The protection fins 32 prevent an object of a predetermined size from being inserted into the hole 31 or from being sucked into the hole 31 .

[0024] The electronics housing 50 includes a plastic cover 51 and an aluminum bottom 52 . A sealing gasket (not shown) is disposed between the cover and the bottom. The hood and base extend forward to provide a docking platform 53 for two rectangular batteries 40 whic...

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PUM

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Abstract

A lawnmower 10 is disclosed comprising a chassis 20 including a cutting chamber 21, a cutting blade rotatably mounted within the cutting chamber, and an electric motor 30 mounted to the chassis above the cutting chamber which in use drives the cutting blade. Apertures 31 are provided between the chassis 20 and the motor 30 to allow air to be drawn into the cutting chamber 21. The lawnmower further comprises an electronics housing 50 mounted above the motor, the base of the housing 52 forming a heat sink for the electronic components in the housing which is cooled by air drawn into the cutting chamber through the apertures 31. The top surface of the electronics housing 50 is uncovered in use and open to air. The housing 50 is mounted to the motor casing by means of a plurality of mounting posts 54 which space the base of the housing from the motor casing. An aperture in the housing base 51 is provided for one or more wires to pass out of the housing, and a resilient seal is provided in the aperture between the wire and the housing base to maintain the protection of the interior space of the housing.

Description

technical field [0001] The present invention relates to a lawnmower, and more particularly to a lawnmower including an electronics housing. Background technique [0002] Existing electric lawn mower designs (whether mains or battery powered) typically have control electronics mounted in or around the motor, often with a trim shroud placed over the top to provide Some kind of protective element and give the mower an overall aesthetic design. [0003] In existing designs, the proximity of the electronics to the motor and the presence of a shroud combine to expose the electronics to dirt, dust, water, vibration and heat. Instead of protecting the electronics, the cover can actually trap dirt, dirt underneath, which exacerbates the thermal problem as airflow becomes more restricted. Contents of the invention [0004] According to the present invention, there is provided a lawn mower comprising: a base having a cutting cavity; a cutting blade rotatably mounted in the cutting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01D34/00H05K7/20
CPCA01D69/02A01D34/78A01D34/81
Inventor M.林C.克普夫
Owner ROBERT BOSCH GMBH
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