Apparatus and methods for sustainable battery charging

• US 10,432,002 B2
• Filed: 09/04/2017
• Issued: 10/01/2019
• Est. Priority Date: 03/08/2016
• Status: Expired due to Fees

• Current Assignee: Arian Shoari, Mona Komeijani
• Original Assignee: Arian Shoari, Mona Komeijani
• Inventors: Shoari, Arian, Komeijani, Mona
• Primary Examiner(s): Nealon, William
• Application Number:
  US15/694,979
• Publication Number:
  US 20180013302A1
• Time in Patent Office: 757 Days
• Field of Search: 455573
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: G06F 1/203 for portable computers, e.g. for laptops
• CPC Class Codes: G08B 21/0247 System arrangements wherein the alarm criteria uses signal strength
• CPC Class Codes: G08B 21/182 Level alarms, e.g. alarms responsive to variables exceeding a threshold
• CPC Class Codes: G08B 21/24 Reminder alarms, e.g. anti-loss alarms
• CPC Class Codes: H01R 13/6205 Two-part coupling devices held in engagement by a magnet
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries
• CPC Class Codes: H04B 17/23 Indication means, e.g. displays, alarms, audible means
• CPC Class Codes: H04B 17/27 for locating or positioning the transmitter
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04M 1/0202 Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03
• CPC Class Codes: H04M 1/0262 for a battery compartment
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04M 2250/12 including a sensor for measuring a physical value, e.g. temperature or motion telephones including GPS signal receivers H04M2250/10
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

This disclosure describes methods and apparatus sustainable battery charging. In one of the embodiments, a charger and plugging mechanism is presented to prevent overcharging of the battery. The plug will automatically detach the power cord from the device when the battery is fully charged. Other feedback controlled detaching mechanisms has also been disclosed such as the one disconnects the charger cord when the internal temperature of the device gets hotter than a preset threshold.

Claims

1. A plug for charging an electronic device,

wherein the plug will be automatically detached from a power port of said device when the device battery is fully charged, comprising;

an electromagnetic system, comprising;

at least two magnetic bodies, wherein first magnetic body is attached to said power port and second magnetic body is attached to said plug of the electronic device,

an electronic circuit to induce a pulse width modulated (PWM) current through a coil of wire attached to at least one of said magnetic bodies, wherein said PWM current induces a magnetic field in said at least one of said magnetic bodies,

an attachment/detachment mechanism controlled by changing the direction of poles and the intensity of magnetic field in said at least two magnetic bodies,

a feedback loop from the charged level of the device battery;

wherein the direction and intensity of the magnetic field induced in said coil of wire is determined by the direction and the value of the average current flows through the coil of wire; and

,

wherein the direction and the value of the average current flows through the coil of wire is determined by the duration of the pulse in said PWM current; and

,

wherein the feedback loop controls the duration of the pulse in said PWM current; and

,

wherein the attachment/detachment mechanism detaches said plug from said power port when the direction of poles in one of said two magnetic bodies flipped.

2. The plug of claim 1, wherein the detaching mechanism is via making the connection loose when the battery is fully charged.

3. The plug of claim 1,

wherein the duration of the pulse in said PWM current is used to revert the direction of poles induced by that current to detach the connection between the plug and the device power port.

4. The plug of claim 1, wherein the average current flows through said coil of wire is proportional to the difference of the device battery voltage from the full battery charge level.