Smart Battery Voltage Control Circuit for Compact Integration
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Solution Overview
Problem
Existing smart battery designs with integrated electronic supply voltage control circuits face challenges in being compact enough for smaller battery dimensions due to the large space occupied by the controller circuit, making it difficult to integrate in batteries smaller than AAA size.
Innovation Solution
A smart battery with an electronic module featuring a printed circuit board with conductive paths on one face and an insulating face that can be secured to chemical substances, where the electronic circuit is connected to multiple electrical connection pads to minimize space and allow integration in a standard small battery structure, using a DC-DC converter and a processing unit to extend battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the controller circuit is connected in a central position to the back cover of the battery, then the battery life can be extended through DC-DC conversion, but the controller circuit occupies a relatively large space that prevents integration in smaller battery dimensions
Solution Approach 1:
The printed circuit board is configured with conductive paths on only one face, transforming the traditional two-faced PCB into a single-sided structure. This dimensional change allows the electronic circuit to be mounted on a thinner profile, reducing the space required in the battery structure while maintaining all necessary electrical connections for DC-DC conversion and battery life extension
Solution Approach 2:
The electronic circuit is directly integrated into the battery structure by mounting it on the printed circuit board that is fixed to the battery case. The conductive paths on the PCB face serve multiple functions: electrical connection between components, structural support, and signal transmission. This merging of functions reduces the overall space required compared to separate mounting arrangements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the integration of all electronic components within a small battery structure, such as button batteries, effectively extending battery life by efficiently managing voltage through a compact electronic supply voltage control circuit.
Implementation Method 1
the controller circuit includes a DC-DC converter clocked by an oscillator to convert the battery or cell voltage into an output voltage
Data Source
AI summary
The smart battery (1) includes an electronic module provided with an electronic circuit (8) for controlling the supply voltage, which is disposed in a case having a cover (2) as the external negative terminal, fixed to a cup (3), as the external positive terminal. A first chemical substance (4) as the anode and a second chemical substance (5) as the cathode, are inside the case. The electronic module includes a printed circuit board (7) having a first face with conductive paths, connected to the electronic circuit, and a second insulating face fixed to the second chemical substance. The electronic circuit is connected at output to a first connection pad connected to the cup. The electronic circuit is connected to the chemical substances by a second connection pad on a first tab (7′) and by a third connection pad on a second tab (7″) folded at 180° on the second face of the printed circuit board.