Rectifier assembly for a lawn mower
AssigneeCanadian General Electric Company Limited
InventorsEdward Szymanis, William E. Heap
Life of this patent
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Abstract
An electric lawn mower having a permanent magnet motor and a dynamic braking feature includes a rectifier which is assembled in a switch-box. The novel arrangement of the rectifier in the switch-box assembly is attached to an upper portion of the handle of the mower to permit use of standard three wire cord for connection between the switch-box and the motor.
Claims5
In a lawn mower having a handle and permanent magnet motor, the improvement comprising a switch-box assembly having a housing mounted to said handle remote from said motor, a switch supported in said housing for controlling the operation of said motor, a rectifier supported in said housing for converting electrical energy passing through said switch to said motor from an alternating current to a direct current, said switch and said rectifier being mounted to a U-shaped bracket, said bracket being mounted to said handle and carrying ribs extending into the housing from the walls of said housing.
In a lawn mower having a handle and a permanent magnet motor and providing a dynamic braking function, the improvement comprising a switch-box assembly having a housing mounted to said handle remote from said motor, support means in said housing supporting a switch in said housing such that a lever of said switch is accessible from outside said housing to control passage of electrical energy through the switch to the motor, said support means further supporting a rectifier in said housing which is connected in electrical series relation with said switch to convert the electrical energy passing through said switch to said motor from an alternating current to a direct current, said support means comprising a U-shaped metal bracket having its arms supporting ribs extending into the housing from the walls of the housing, said bracket having its base portion mounted to said handle by means of one or more spot welds such that said base portion lies flush against said handle with said rectifier in heat transfer relation with said handle, and three wire electrical cord passing into and out of said housing for respectively carrying electrical energy to the assembly and from the assembly to the motor.
Dependencies are inferred from the claim text.