# US 10,478,035 B2 · Charging stand for vacuum cleaner

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- Number: US 10,478,035 B2
- Document ID: US10478035B2
- Status: Granted
- Kind: B2
- Application number: 15/539,151
- Filed: 2016-03-22
- Published: 2018-11-01
- Granted: 2019-11-19
- Earliest claimed: 2016-01-20
- Assignees: Jiangsu Midea Cleaning Appliances Co., Ltd.
- Applicants: Jiangsu Midea Cleaning Appliances Co., Ltd.
- Inventors: Chaoyi Deng; Min Zhong; Xinzhou Wang; Yonghua Wang
- Web page: https://patentgrep.com/patent/US10478035B2

## CPC

- A47L 9/2873: {Docking units or charging stations (for autonomous or robotic vacuum cleaners A47L2201/02)}
- A46B 17/06: Devices for cleaning brushes after use
- A47L 5/30: with driven dust-loosening tools, e.g. rotating brushes
- A47L 9/26: Incorporation of winding devices for electric cables (devices specially adapted for repeatedly paying-out or re-storing cables B65H75/34; arrangements of electrical cables or lines between relatively-movable parts H02G11/00)
- A47L 9/28: Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L 9/2889: {Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user}
- H02J 7/70: characterised by the mechanical construction
- A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)
- A46B: BRUSHES (handles not integral with brushware B25G)
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY

## Abstract

A charging stand (100) for a vacuum cleaner (200) includes: a body (1), a charger (7) and a wire-winding frame (6). The charger (7) is connected with the body (1) via a power cord (71) and provided with a pin (72); the wire-winding frame (6) is disposed to the body (1) and defines an inserting slot (611), in which the pin (72) is configured to be fitted with the inserting slot (611), and the power cord (71) is configured to be wound around the wire-winding frame (6).

## Claims

### Claim 1

A charging stand for a vacuum cleaner, comprising:
a body;
a charger connected with the body via a power cord and provided with a pin;
a wire-winding frame disposed to the body and defining an inserting slot, wherein the pin is configured to be fitted with the inserting slot, and the power cord is configured to be wound around the wire-winding frame;
a pedal disposed on the body and pivotable between a first position and a second position; and
a safety protection device disposed on the body and normally engaged with the pedal, wherein when the safety protection device is toggled, the safety protection device is disengaged from the pedal to make the pedal move from the first position to the second position;
wherein each safety protection device comprises:
a safety protection member disposed at a side face of the pedal and defining a fitting groove in which an edge of the pedal is fitted; and
a resetting member disposed between the safety protection member and the body, and configured to normally push the safety protection member towards a center of the pedal, wherein the resetting member is configured as a resilient sheet or a spring.

### Claim 2 (depends on 1)

The charging stand according to claim 1, wherein the wire-winding frame comprises a fixing portion and a wire-winding portion connected with each other, the inserting slot is formed in the fixing portion, and the power cord is configured to be wound around the wire-winding portion.

### Claim 3 (depends on 2)

The charging stand according to claim 2, wherein the wire-winding frame is disposed to the body and movable between a storage position and a winding position; when the wire-winding frame is in the storage position, the wire-winding portion is located within the body; when the wire-winding frame is in the winding position, the wire-winding portion extends out of the body.

### Claim 4 (depends on 1)

The charging stand according to claim 1, wherein at least two safety protection devices are provided; the at least two safety protection devices are disposed on the body and spaced apart from each other; when the at least two safety protection devices are toggled, the at least two safety protection devices are disengaged from the pedal to make the pedal move from the first position to the second position.

### Claim 5 (depends on 1)

The charging stand according to claim 1, wherein the safety protection member is pivotably connected to the body;
the safety protection member has a first end and a second end, in which the fitting groove is defined in the second end of the safety protection member; when the first end of the safety protection member is toggled, the second end of the safety protection member moves away from the center of the pedal to disengage the edge of the pedal from the fitting groove.

### Claim 6 (depends on 5)

The charging stand according to claim 5, wherein the first end of the safety protection member has a guide surface configured to toggle the first end of the safety protection member, wherein the guide surface is constructed to extend obliquely towards the center of the pedal from up to down, and wherein the guide surface is formed as an oblique plane or an oblique curved surface, extending obliquely towards the center of the pedal from up to down.

### Claim 7 (depends on 5)

The charging stand according to claim 5, wherein when the pedal is in the first position, the first end of the safety protection member extends out of an inner side face of the body.

### Claim 8 (depends on 1)

The charging stand according to claim 1, wherein two safety protection devices are provided and located at a left side and a right side of the body respectively.

### Claim 9 (depends on 1)

The charging stand according to claim 1, wherein the pedal is disposed horizontally when in the first position.

### Claim 10 (depends on 1)

The charging stand according to claim 1, wherein a rotation angle of the pedal rotating from the first position to the second position is denoted as α, in which α satisfies 0°<α≤60°.

### Claim 11

The charging stand according to 16, wherein a further satisfies 1°≤α≤10°.

### Claim 12 (depends on 1)

The charging stand according to claim 1, wherein a top of the body is open, and the pedal is disposed within the body and spaced apart from a bottom wall of the body.

### Claim 13 (depends on 1)

The charging stand according to claim 1, wherein a lower surface of the pedal is provided with at least one reinforcing rib.

### Claim 14 (depends on 1)

The charging stand according to claim 1, wherein a blade is provided in the body, and an opening is defined in the pedal and corresponds to a position of the blade;
when the pedal is in the second position, the blade extends out of the opening to cut off hairs around a brushroll of the vacuum cleaner placed on the pedal; when the pedal is in the first position, the blade is located below the opening;
a microswitch disposed within the body, wherein when the pedal is in the second position, the microswitch is triggered to make the charging stand stop charging and rotate the brushroll, wherein the blade is vertically disposed;
wherein the blade extends curvedly along a length direction thereof;
wherein the blade extends in an arc or wavy manner along the length direction thereof;
wherein the body has a base, and an elastic member is disposed between the blade and the base;
a blade holder disposed on the base, wherein the blade is disposed on the blade holder; the elastic member is disposed between the blade and the blade holder and/or between the blade holder and the base, wherein when the elastic member is disposed between the blade holder and the base, an accommodating groove is defined in the base and configured to accommodate the elastic member; and
wherein an upper surface of the elastic member is higher than an upper surface of the base, wherein the elastic member is made of soft rubber.

### Claim 15 (depends on 14)

The charging stand according to claim 14, wherein the pedal is provided with a stopping piece, and the opening is defined in the stopping piece, wherein the stopping piece is horizontally disposed and wherein the stopping piece is made of soft rubber;
wherein a clearance groove is defined in a lower surface of a part, adjacent to the opening, of the stopping piece, wherein a distance between an inner wall of the clearance groove and an upper surface of the stopping piece is gradually decreased in a direction towards a center of the opening.

### Claim 16 (depends on 1)

The charging stand according to claim 1, wherein the pedal has a first end and a second end, and the first end of the pedal is pivotably connected to the body through a pivot shaft;
an elastic resetting member is provided between the second end of the pedal and the body, and configured to normally push the pedal towards the first position;
wherein the pedal extends along a front-rear direction; the first end of the pedal is a rear end thereof, and the second end of the pedal is a front end thereof; and
wherein a side of the body adjacent to the second end of the pedal is provided with a position-limiting member, and the position-limiting member is located at a side of the pedal away from the elastic resetting member, wherein the elastic resetting member is configured as a spring.