Power-off protection device, air purifier with the device and control method

Abstract

The invention provides a power-off protection device. The device comprises a strong-current switch (1) for controlling a whole protected device to electrify or diselectrify, a weak-current switch (2) for controlling the protected device to electrify to run or diselectrify, a mechanism structure (3) which is arranged corresponding to the strong-current switch (1) in positions and can turn on or turn off the strong-current switch (1), and a magnetic structure (4) which interacts with the weak-current switch (2) and can turn on or turn off the weak-current switch (2). According to the power-off protection device, a circumstance that an interlocking switch is failed due to frequent dismounting and washing of the air cleaner, thus a cover cannot be dismounted to power off, and as a result, a user faces the electric shock risk, can be particularly prevented; in addition, a high-pressure cleaning assembly can be examined, so as to ensure that the air cleaner can work under rated load; the mis-operation caused by that a customer cannot timely replace a damaged part can be avoided. The invention also relates to an air cleaner with the power-off protection device, and a control method.

Description

technical field [0001] The invention belongs to the technical field of air purifiers, and in particular relates to a power-off protection device, an air purifier with the device and a control method. Background technique [0002] At present, there are a large number of air purifiers that use high-voltage ionization and molecular breakdown purification methods on the market. Due to the detachable and washable structure of the air purifier, the frequency of such detachment and washing is generally relatively high. In order to achieve the corresponding electric shock protection, all products will take protective measures to remove the cover and cut off the power (through the installation of the cover plate and the switch interlock, the switch is disconnected synchronously when the cover plate is removed). Although this protective measure can cut off the power supply after disassembly, the high-frequency dismantling and washing times may make the interlock switch invalid and can...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the air purifier in the prior art has the failure of the interlock switch due to the high-frequency dismantling and washing times, which makes it impossible to remove the cover and cut off the power, causing the user to have the risk of electric shock, thereby providing a A power-off protection device, an air purifier having the device, and a power-off protection control method

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