FR3065428A1 - MOTORIZED MARKET FOR STROLLERS - Google Patents

Abstract

Electric assistance device for single or multiple stroller, consisting of a motor part, fixed on pivot. The support is a flat or curved support. The device consists of an electric element, allowing the motor power. The walk includes an electrical device, battery type. This walk is equipped with photovoltaic panels which directly placed on the top. In addition, the accumulated energy is returned to the batteries used by the electric motor. Two pivot-mounted mounting arms with adjustable clamping pliers.

Description

MOTORIZED MARKET FOR STROLLERS

Summary :

Electric assistance device for single or multiple stroller, consisting of a motor part, fixed on pivot. The support is a flat or curved support. The device consists of an electrical element, allowing the power to the motor. The step includes an electrical device, battery type. This step is provided with photovoltaic panels which directly placed on top. In addition, the accumulated energy is returned to the batteries used by the electric motor.

Two fixing arms mounted on pivot, fitted with adjustable clamp.

Description:

The present invention relates to a motorized step for strollers. More specifically, the invention relates to an electrical assistance device, or other device of the same nature allowing electrical assistance intended for strollers.

It responds perfectly to the demand of moms, pregnant women and twin and triplet strollers and also people with back pain or simply who have a strong climb.

An integrated electric motor of 36 Volts. This allows the stroller to move forward at the push of a button at a maximum speed of 8 km / h. Without assistance the wheels are independent

The present invention presents a motorized step, comprising batteries confined under the step, a brake, an electromagnetic clutch disc, a mini control panel with integrated electronic components, and safety devices.

The technology of the motorized foot step for strollers:

- U

First of all, an electric assistance is made up of 4 elements:

> A motor ♦ a Battery • ♦ Control unit.

♦ a controller and software.

A regulator will be located between the battery and the solar panel.

To design our electrically assisted stroller, we will use an outrunner brushless motor:

Brushless motors whose rotor is around the stator are called "outrunner". This configuration is interesting in terms of engine torque, because the magnets are arranged over a large diameter, which creates a very interesting lever arm. In addition, this arrangement allows placing

easily several (up to 32 poles on series of magnets some outrunners brushless motors) and coils. The coils are always wired in groups of 3, and the magnets are either glued in groups of 2, or consist of a magnetic part comprising several poles. As for a stepper motor, brushless outrunners motors comprising more than 3 coils and 2 poles only make a fraction of a turn when the field has rotated 180 °. Their frequency of rotation is therefore lower but the torque very high. These outrunners brushless motors are often used in applications that require high torque, because they can be connected to the load without requiring a reduction device. Their Kv coefficient is relatively low compared to other types of brushless motors. The main applications of outrunners brushless motors are as follows: fans, motors, electric bicycle motors (integrated in my hub).

I * a motorization:

A hub motor will be mounted on a pivot.

The outrunner brushless motor:

36V Brushless Hub Motor

brushless with freewheel to facilitate thrust extremely quiet drive thanks to the motor

A braking device, such as a disc brake, will be integrated into the hub.

Battery :

36V / 12A Li-ion battery.

The control box: The controller

The mini-board will consist of a motherboard and will be connected to the battery via a connector. He will be able to adjust the speed and the direction of travel. A USB port will be available; to allow charging of smartphones. The box will be fixed directly on the handle of the stroller, using an adjustable clip clamp.

The motherboard will determine the torque to be developed by the engine, the responsiveness of the assistance, management of the display, management of the battery. The controller and its software are linked to the engine.

Motor voltage:

Calculated in Volts, the motor will be supplied with 36 Volts. It will be powered by accumulators with a capacity of 2.5Ah, to ensure an autonomy of 2H.

The sensors:

Power / torque sensor: located inside the engine, it calculates the power to be restored to the engine during efforts, especially during climbs.

Cadence sensor: located in the engine, it allows you to adjust the speed, depending on the pace of walking.

Speed sensor: Located in the wheel, it limits the speed to the assistance speed, that is to say 8Km / h for this project, in order to comply with the legislation which authorizes a maximum of 25Km / h.

Safety sensor: when a button is pressed, it will electrically cut the circuit.

Positioning and recharging:

A location will be provided to house the battery, with tray. The step may detach from the stroller during folding and be able to recharge without the stroller. The step can be folded back on the stroller, thanks to the arms which will be provided with a joint.

Fonctionnalities :

Be an additional charging mode, in addition to recharging. Hide the battery, and make the stroller more aesthetic.

To be as close as possible to the motor wheels, in order to facilitate the connection of the wheels. Allows electric assistance to strollers.

The braking system:

The braking device will be integrated into the electromagnetic hub.

The clutch will connect a rotating axis to another axis by supplying a winding.

The axis line is set in motion when the friction surfaces are in contact.

The clutch is controlled by an electromagnetic coil.

with a clutch

Description:

Motorized step with directional drive wheel (s), equipped with motor with motorized hub. The attachment will be done using arms, equipped with clip clamp, which will be directly attached to each side of the support at the back of the stroller.

Claims (10)

The revendications : Preamble: Motorized step for strollers, allowing electric assistance with integrated electronic control comprising an electric motor producing an acceleration comprising: an acceleration control. A disc brake. An accelerator control circuit coupled between the acceleration control and the electric motor and coupled to the brake sensor, in which the accelerator control circuit controls the acceleration of the electric stroller by the electric motor in accordance with the pressure exerted on the throttle grip and is deactivated when the brake sensor considers that the brake lever is in the braking position. The device including in outraged : a button break emergency. A circuit of break power couple electrically button. the engine electric is chopped off electrically during the action of this button. 2. The device further comprising: an indicator light coupled to the cut-off button. When the indicator light is on, it indicates to the user the possibility of accelerating. 3. The device further comprising: a battery coupled to the control circuit. The throttle control unit is disabled while the battery is in operation. 4. The device further comprising: one or more motorized wheels on pivot, with motorized hub, or other element capable of causing a rotation of a motor, gear type, belt. 5. The device further comprising: a control box equipped with an electronic card, a USB port and a mainlibre kit. 6. The device further comprising: a control unit equipped with a GPRS chip. This GPRS chip will make it possible to geo-locate people equipped with this box in real time. The geolocation function can be activated or deactivated freely, and allow the person to be anonymous. 7. The device further comprising: fixing arms mounted on a pivot, provided with a clamp, which can also be mounted on a pivot. 8. The device further comprising: photovoltaic panels which directly placed on top. The accumulated energy is returned to the batteries used by the electric motor. 9. The device further comprising: foldable elements (fixing arm), provided with a handle articulation piece. 10. The device further comprising: the motor is electrically activated either by an acceleration control placed on the handle of the stroller, or by a switch located in the step.