Electric steam cleaner

1 . An electric cleaner, comprising: a steam delivery system; a cleaning head; and a drive assembly, wherein said steam delivery system directs high-temperature steam to said cleaning head, so as to form a high-temperature steam environment, wherein said drive assembly electrically drives said cleaning head to move within said high-temperature steam environment;

wherein said drive assembly comprises a rotating motor and an eccentric transmission assembly, wherein said rotating motor is powered by electrical energy to generate rotational force around a first axis, wherein said eccentric transmission assembly is driven by the rotational force from said rotating motor, thereby rotating said cleaning head around a second axis, wherein the first axis and the second axis maintain a predetermined distance while remaining parallel to each other;

wherein said eccentric transmission assembly comprises a torque-enhancing assembly and a passive rotary body, wherein said torque-enhancing assembly is driven by said rotating motor to rotate around the first axis, wherein said passive rotary body engages with said torque-enhancing assembly and rotates around the second axis under the drive of said torque-enhancing assembly, thereby driving said cleaning head to rotate around the second axis;

wherein said torque-enhancing assembly comprises a first sun gear, a first planetary gear set, an internal gear ring, a first turntable, a second sun gear, a second planetary gear set, and a second turntable, wherein said rotating motor comprises a motor body and a motor output shaft extending from said motor body, wherein said motor output shaft defines the first axis, wherein said motor output shaft is driven to rotate around the first axis, wherein said first sun gear is fixedly connected to said motor output shaft, rotating with said motor output shaft to drive said first planetary gear set to rotate around said first sun gear, wherein said internal ring gear engages with said first planetary gear set to guide the rotation of said first planetary gear set, wherein movement of said first planetary gear set drives said first turntable to rotate around said first shaft, wherein rotation of said first turntable synchronously drives said second sun gear to rotate, and further drives said second planetary gear set to rotate around said second sun gear, wherein said internal ring gear engages with said second planetary gear set to limit the rotation of said second planetary gear set, wherein movement of said second planetary gear set drives said second turntable to rotate around said first shaft, wherein said second turntable engages with a passive rotary body, so as to drive said passive rotary body to rotate around the second axis and further drive said cleaning head to rotate around the second axis.

2 . The electric cleaner, as recited in claim 1 , wherein said steam delivery system guides the high-temperature steam to a central axial position of said cleaning head.

3 . The electric cleaner, as recited in claim 2 , wherein said steam delivery system comprises a connector, a conduit and a steam injection assembly, wherein the high-temperature steam is introduced from said connector, enters said conduit and is ejected through said steam injection assembly.

4 . The electric cleaner, as recited in claim 3 , wherein an extension direction of said steam injection assembly is perpendicular to the rotation direction of said cleaning head, so as to ensure that the steam injection direction intersects with the rotation direction of said cleaning head.

5 . The electric cleaner, as recited in claim 4 , wherein said steam injection assembly comprises an adapter and a nozzle, wherein said adapter is connected between said nozzle and said conduit, and wherein said nozzle is made of metal.

6 . The electric cleaner, as recited in claim 5 , wherein said cleaning head comprises a brush body and a fixation body, wherein said brush body is fixedly connected to said fixation body, wherein said fixation body has a through hole for said steam injection assembly to pass through.

7 . The electric cleaner, as recited in claim 6 , wherein said through hole is arranged at an axial position of said fixation body, wherein said fixation body further has a steam guide channel communicating with said through hole.

8 . The electric cleaner, as recited in claim 7 , wherein said passive rotary body comprises an eccentric gear and an extension body, wherein said extension body extends from said eccentric gear, wherein said passive rotary body further has a rotor channel for passing through said steam delivery system.

9 . The electric cleaner, as recited in claim 8 , further comprising a shell, wherein said shell comprises a steam passage section and a handle section, wherein said steam passage section is spaced apart from said handle section, wherein said steam passage section defines a steam delivery system channel through which said steam delivery system passes.

10 . The electric cleaner, as recited in claim 9 , wherein said steam delivery system further comprises an insulating material, wherein said insulating material is arranged to outer periphery of said conduit and is fixed in said steam delivery system channel.

11 . The electric cleaner, as recited in claim 10 , wherein said eccentric transmission assembly further comprises a gear housing for accommodating and fixing said torque-enhancing assembly and said passive rotary body.

12 . The electric cleaner, as recited in claim 3 , wherein said connector has a detachable connection structure, so as to be detachably connected to a steam generator.

13 . The electric cleaner, as recited in claim 12 , wherein said detachable connection structure is selected from threads, grooves, bumps and key card slots.

14 . The electric cleaner, as recited in claim 1 , further comprising a control system and a power supply unit, wherein said power supply unit powers both said control system and said rotating motor, wherein said control system comprises a current detection module and a control module, wherein said current detection module monitors current flowing through said rotating motor, wherein when detected current exceeds a predetermined threshold, said control module activates to stop the operation of said rotating motor.