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Appliance with integrated ground fault detection

A ground fault, appliance technology, applied in the appliance field

Pending Publication Date: 2022-04-15
SHARKNINJA OPERATING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A GFCI can significantly reduce the likelihood of those line voltages touching the user, but there are considerable challenges with the availability and associated costs of GFCIs

Method used

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  • Appliance with integrated ground fault detection
  • Appliance with integrated ground fault detection
  • Appliance with integrated ground fault detection

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] As discussed above, the ground fault circuit interrupter disconnects the power supply when it detects an unwanted grounding of the power rail (referred to herein as a GF event). Such devices are effective in reducing shock, but unfortunately they are often unavailable and may provide a false sense of security. GFCIs require periodic testing and replacement, and if not tested regularly, GFCIs can fail over time without warning. Many GFCIs go untested for years.

[0026] Some appliances employ line-based GF / leakage detectors, such as Equipment Leakage Current Interrupters (ELCIs). However, ELCI and the like are significantly bulkier and often require expensive components to implement. Additionally, when a GF event is detected by a GFCI or other similar device, the result may be a sudden "shutdown" of the device until the user initiates a reset or otherwise remedy the cause of the GF.

[0027] Accordingly, the present disclosure is generally directed to a GF detection c...

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PUM

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Abstract

The present disclosure is generally directed to a GF detection circuit for stirrers and other appliances that can detect current leakage / GF events and selectively decouple / decouple components of the stirrers that may bring a user into contact with hazardous currents. Preferably, the agitator according to the present disclosure includes at least one ground plane, e.g., in the form of a conductive material / section, disposed on the agitator and / or agitator tank, acting as an input to a GF detection circuit implemented at least partially within the base of the agitator.

Description

[0001] Related Application Cross Reference [0002] This application claims the benefit of U.S. Provisional Application No. 62 / 874,354, filed July 15, 2019, which is hereby incorporated by reference in its entirety. technical field [0003] This specification relates generally to appliances, and more particularly to appliances with integrated ground fault / current leakage detection which is deactivated at least in part in response to detecting contact of food / liquid with an energized pin / terminal of the appliance the appliance. Background technique [0004] According to the National Electrical Code, a "ground fault" is a conductive connection (whether intentional or accidental) between any electrical conductor and ground or any conductive material that can be grounded. Electricity always seeks the easiest path to ground, and in a ground fault this may include electricity being conducted through a human body. [0005] Studies have shown that as little as 5 milliamps (mA) or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H5/08H05H3/00H05H5/00
CPCA47J43/046G01R31/52H02H3/167H02H3/33
Inventor 达米安·霍华德
Owner SHARKNINJA OPERATING LLC