Alarm device of vehicle battery for monitoring voltage ranges in charging and discharging processes of vehicle battery

• US 7,982,593 B2
• Filed: 10/01/2008
• Issued: 07/19/2011
• Est. Priority Date: 10/01/2008
• Status: Expired due to Fees

• Current Assignee: Lifetech Energy, Inc.
• Original Assignee: Lifetech Energy, Inc.
• Inventors: Hsu, Alan
• Primary Examiner(s): Nguyen; Tai T
• Application Number:
  US12/243,955
• Publication Number:
  US 20100079271A1
• Time in Patent Office: 1,021 Days
• Field of Search: 340/455, 340/321, 340/326, 340/473, 340/908.1, 180/65.2, 180/65.4, 180/65.8, 180/54, 320/127, 320/128, 320/134, 320/136
• US Class Current: 340/455
• CPC Class Codes: B60L 2240/547 Voltage
• CPC Class Codes: B60L 2240/549 Current
• CPC Class Codes: B60L 2250/10 by alarm
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 58/10 for monitoring or controlling batteries
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H02J 7/0029 with safety or protection devices or circuits
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• 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

An alarm device of a vehicle battery for monitoring voltage ranges in charging and discharging processes of the vehicle battery uses a sampling circuit to monitor the charging and discharging voltages real time of a battery, and prompts alert through a light or a buzzer of an alert unit in accordance with the preset voltage stage in a charging and discharging process of the battery. Moreover, a connection port compatible to an external electric device for accessing and examining the defect of a malfunction battery as a reference for maintaining and updating a malfunctioned battery.

Claims

1. An alarm device of a vehicle battery for monitoring voltage ranges in charging and discharging processes of the vehicle battery, comprising:

an alarm device electrically connected to the vehicle battery (20) and having a power end for wiring to at least one charger (30) and one load (40) respectively, further comprising;

a sampling circuit having a first detecting end for over-current detection to the load (40) and a second detecting end for over-charge detection to the charger (30);

the sampling circuit detecting charging/discharging voltage to the vehicle battery (20) through the first detection end and the second detecting end real time so as to monitor the voltage ranges of the vehicle battery (20) in charging and discharging;

an alert unit actuated by one of signals from the first detecting end and the second detecting end; and

wherein above assemblies serve to monitor the voltages in charging and discharging so as to control battery status.

2. The alarm device of a vehicle battery for monitoring voltage ranges in charging and discharging processes of the vehicle battery as claimed in claim 1, further comprising:

a memory unit for storage of standard voltage values and data detected by the first detecting end and the second detecting end.

3. The alarm device of a vehicle battery for monitoring voltage ranges in charging and discharging processes of the vehicle battery as claimed in claim 2, further comprising a set of connection ports connectable to an external electronic device for accessing the data of the memory unit and determining a malfunction of the vehicle battery (20) as a reference for maintaining and updating of the malfunctioned vehicle battery (20).

4. The alarm device of a vehicle battery for monitoring voltage ranges in charging and discharging processes of the vehicle battery as claimed in claim 3, wherein the connection port is a USB (universal series bus) connecting port.

5. The alarm device of a vehicle battery for monitoring voltage ranges in charging and discharging processes of the vehicle battery as claimed in claim 2, wherein a preset alert unit will prompt alert in accordance with comparisons between the standard voltage values preset in the memory unit and the voltages detected in the charging and discharging process of the vehicle battery (20).

6. The alarm device of a vehicle battery for monitoring voltage ranges in charging and discharging processes of the vehicle battery as claimed in claim 1, wherein the alert unit is a light emitting diode.

7. The alarm device of a vehicle battery for monitoring voltage ranges in charging and discharging processes of the vehicle battery as claimed in claim 1, wherein the alert unit is a buzzer.