Hand-Held Steam Cleaning Apparatus

Patent metadata

Field	Value
Publication number	US-2024315513-A1
Application number	US-202418680790-A
Country	US
Kind code	A1
Filing date	May 31, 2024
Priority date	Sep 23, 2022
Publication date	Sep 26, 2024
Grant date	—

Abstract

A hand-held steam cleaning apparatus including: a housing, provided with a handle; a steam generating unit, including a heating body and configured to heat water and vaporize the water into steam; a steam nozzle, configured to output the steam; and a water supply device, including a water tank and pump configured to pump the water in the water tank into the steam generating unit. The cleaning apparatus is powered by a battery pack. The weight of the cleaning apparatus is not greater than 2 kg when the housing is fitted with the battery pack and the water tank is fully loaded; the capacity of the battery pack is in the range of 36-144 Wh. The steam flow capacity is in the range of 3-12 g/min; and the continuous work time is not less than 2 min.

First claim

What is claimed is:

1 . A hand-held steam cleaning apparatus comprising:
a housing provided with a handle for holding; a steam generating unit comprising a heating body and configured to heat and vaporize water into steam, configured to produce a steam flow capacity M when performing cleaning work; a steam nozzle configured to output the steam; a water supply device comprising a water tank and a water pump configured to pump water in the water tank into the steam generating unit, and a control device, configured to control an operation of the water pump and the heating body, wherein: the hand-held steam cleaning apparatus is powered by a battery pack; a weight of the hand-held steam cleaning apparatus is not greater than 2 kg when the housing is fitted with the battery pack and the water tank is fully loaded; a capacity of the battery pack is in a range of 36-144 Wh; M is in a range of 3-12 g/min; and the hand-held steam cleaning apparatus has a continuous work time, T, defined from a start of steam production to an end of steam production, the continuous work time being not less than 2 min.

2 . The hand-held steam cleaning apparatus according to claim 1 , wherein:
a cleaning power MT of the hand-held steam cleaning apparatus is defined as a product of the steam flow capacity M and the continuous work time T; and the cleaning power MT is between 25.2 g˜166 g.

3 . The hand-held steam cleaning apparatus according to claim 2 , wherein:
a weight when the housing is fitted with the battery pack and the water tank is fully loaded is a whole machine weight G, a ratio MT/G of the product MT of the steam flow capacity M and the continuous work time T to the whole machine weight G of the hand-held steam cleaning apparatus is the cleaning power per unit weight, and a value of the cleaning power per unit weight MT/G satisfies 0.0216≤MT/G≤0.1060.

4 . The hand-held steam cleaning apparatus according to claim 1 , wherein a power of the steam generating unit is in a range of 120-600 W.

5 . The hand-held steam cleaning apparatus according to claim 1 , wherein a thermal efficiency of the steam generating unit is greater than 70%.

6 . The hand-held steam cleaning apparatus according to claim 1 , wherein:
the housing comprises a main body; an obtuse angle is set between an axis of the main body and an axis of the handle; an end of the handle away from the main body is provided with a mounting base; the battery pack is detachably connected to the mounting base; and a bottom of the battery pack is provided with a support surface that supports the hand-held steam cleaning apparatus upright on a reference plane.

7 . The hand-held steam cleaning apparatus according to claim 6 , wherein:
the steam generating unit is accommodated in the main body; and the steam nozzle, the steam generating unit, and the water tank are arranged in a sequence along the axis of the main body.

8 . The hand-held steam cleaning apparatus according to claim 6 , wherein:
an auxiliary brush head is detachably coupled to the steam nozzle; and a brush surface of the auxiliary brush head is approximately parallel to the axis of the handle.

9 . The hand-held steam cleaning apparatus according to claim 1 , wherein:
the control device comprises a control trigger set on the handle and a circuit board; the control trigger is electrically connected to the circuit board and the battery pack; and the control trigger is configured to start an operation of the water pump and the heating body to produce instant steam.

10 . A hand-held steam cleaning apparatus comprising:
a housing provided with a handle for holding; a steam generating unit, disposed in the housing, comprising a heating body, and configured to heat and vaporize water into steam, configured to produce a steam flow capacity M, when performing cleaning work; a steam nozzle communicating with the steam generating unit and configured to output the steam; and a water supply device configured to deliver liquid to the steam generating unit; the water supply device comprising a water tank and a water pump configured to pump water in the water tank into the steam generating unit, wherein: the hand-held steam cleaning apparatus is powered by a battery pack; the hand-held steam cleaning apparatus has a continuous work time T, defined from a start of steam production to an end of steam production; a cleaning power MT of the hand-held steam cleaning apparatus is defined as a product of the steam flow capacity M and the continuous work time T, a weight when the housing is fitted with the battery pack and the water tank is fully loaded is a whole machine weight G, and a ratio MT/G of the cleaning power MT to the whole machine weight G of the hand-held steam cleaning apparatus is a cleaning power per unit weight; and a value of the cleaning power per unit weight MT/G satisfies 0.0216≤MT/G≤0.1060.

11 . The hand-held steam cleaning apparatus according to claim 1 , wherein the value of the cleaning power per unit weight MT/G satisfies 0.0309≤MT/G≤0.1060.

12 . The hand-held steam cleaning apparatus according to claim 10 , wherein the steam flow capacity M is greater than or equal to 3 g/min, and less than or equal to 12 g/min.

13 . The hand-held steam cleaning apparatus according to claim 12 wherein the steam flow capacity M is greater than or equal to 4 g/min, and less than or equal to 8 g/min.

14 . The hand-held steam cleaning apparatus according to claim 10 , wherein a capacity of the battery pack is greater than or equal to 36 Wh, and less than or equal to 144 Wh.

15 . The hand-held steam cleaning apparatus according to claim 10 , wherein a whole machine weight is not greater than 2 kg.

16 . The hand-held steam cleaning apparatus according to claim 10 , wherein a power consumption of the steam generating unit is in a range of 120-600 W, or in a range of 180-400 W.

17 . The hand-held steam cleaning apparatus according to claim 10 , wherein a resistance range of the heating body is 0.65-6.91 ohms.

18 . The hand-held steam cleaning apparatus according to claim 10 , wherein a thermal efficiency of the steam generating unit is greater than 70%, or between 85% and 95%.

19 . A hand-held steam cleaning apparatus comprising:
a housing provided with a handle for holding; a steam generating unit disposed in the housing, comprising a heating body and configured to heat water and vaporize the water into steam; a steam nozzle communicating with the steam generating unit and configured to output the steam; a water supply device, configured to deliver liquid to the steam generating unit; the water supply device comprising a water tank and a water pump configured to pump the water in the water tank into the steam generating unit; and a control device configured to control a water pump and heating body to produce instant steam; wherein: the hand-held steam cleaning apparatus is powered by a battery pack; a weight of the hand-held steam cleaning apparatus is not greater than 2 kg when the housing is fitted with the battery pack and the water tank is fully loaded; the steam generating unit is configured to produce a steam flow capacity M, when performing cleaning work; the hand-held steam cleaning apparatus has a continuous work time, T, defined from a start of steam production to an end of steam production; and a cleaning power MT of the hand-held steam cleaning apparatus is defined as a product of the steam flow capacity M and the continuous work time T, MT bei

Assignees

• Positec Power Tools Suzhou Co Ltd

Inventors

• Meng Rui
• Zhang Kaixiang
• Zhang Xiangliang

Classifications

• A47L13/225

  Steam mops · CPC title

• A47L11/4005 Primary

  Arrangements of batteries or cells; Electric power supply arrangements · CPC title

• A47L11/4036

  Parts or details of the surface treating tools · CPC title

• A47L11/4088

  Supply pumps; Spraying devices; Supply conduits · CPC title

• A47L11/4083

  Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices · CPC title