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Household appliances and their pressure relief devices

A technology of household appliances and pressure relief devices, applied in the direction of output power conversion devices, electrical components, etc., can solve problems such as hidden dangers, existence of safety, and it takes several seconds or even tens of seconds to discharge, so as to improve safety, prevent damage effect

Active Publication Date: 2020-07-31
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of the related technology is that when the socket of the household appliance is unplugged and the power is cut off, due to the existence of the large-capacity capacitor, the high voltage stored at both ends of the capacitor will remain on the plug of the household appliance, and it takes several seconds or even tens of seconds to recover. It will be released below the safe voltage, posing a safety hazard

Method used

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  • Household appliances and their pressure relief devices
  • Household appliances and their pressure relief devices
  • Household appliances and their pressure relief devices

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Embodiment Construction

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0034] The household appliance and the pressure relief device thereof proposed by the embodiments of the present invention are described below with reference to the accompanying drawings.

[0035] figure 1 is a schematic block diagram of a pressure relief device for a household appliance according to an embodiment of the present invention. Such as figure 1 As shown, the household appliance includes a fan 600 , and the pressure relief device 400 of the household appliance includes: a voltage detection module 100 , a fan driving ...

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Abstract

The invention discloses a household appliance and a pressure relief device thereof. The device comprises: a voltage detection module connected with a power supply for detecting the voltage of the power supply and generating a trigger signal according to the voltage of the power supply, wherein the power supply The power supply is used to supply power to household appliances; the fan drive module is connected to the fan of the household appliance, and is used to drive the fan to run or stop; the control chip is connected to the voltage detection module and the fan drive module, and is used to trigger When the signal judges that the voltage of the power supply exceeds the preset voltage range, the fan drive module controls the fan to run for a preset time to discharge the voltage. The pressure relief device in the embodiment of the present invention detects the power failure of the household appliances, and controls the operation of the fan to accelerate the discharge of the high-voltage signal stored on the circuit board of the household appliance, quickly discharges the residual voltage of the circuit, and prevents the residual voltage It will cause damage to the personal safety of the user and improve the safety of the product.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a pressure relief device for household appliances and a household appliance. Background technique [0002] In the related art, in order to avoid polluting the external power grid, household appliances are usually designed with an EMC protection circuit composed of a large-capacity capacitor and an inductor connected in parallel to the input terminal of the AC power supply. However, the disadvantage of the related technology is that when the socket of the household appliance is unplugged and the power is cut off, due to the existence of the large-capacity capacitor, the high voltage stored at both ends of the capacitor will remain on the plug of the household appliance, and it takes several seconds or even tens of seconds to recover. It will be released below the safe voltage, posing a safety hazard. [0003] Therefore, related technologies need to be improved. Con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/32
CPCH02M1/32H02M1/322
Inventor 宣龙健汪钊卢伟杰
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD