Battery Pack Safety Switch Layout for Handheld Electroporation
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Solution Overview
Problem
Conventional handheld electroporation devices face issues with electrical inefficiencies and ergonomic challenges due to the need for large external switches or resistors to prevent short circuits when battery packs are soldered to circuit boards, which hamper the device's ability to produce the necessary electroporation signal and affect the center of gravity.
Innovation Solution
The integration of a safety switch and power switch within the battery pack housing, with a controller to detect operating conditions and adjust the safety switch, allows for manual power control without external components, reducing voltage losses and maintaining a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If battery packs are directly soldered to circuit boards to reduce electrical losses and save space, then electrical efficiency is improved and device size is reduced, but short circuits and undesirable operating conditions occur upon installation
Solution Approach 1:
The patent applies preliminary action by incorporating a safety switch into the battery pack before installation, which is pre-configured to prevent short circuits. The safety switch is integrated during battery pack manufacturing, allowing the battery to be installed earlier in the manufacturing process without risking short circuits, thus eliminating the need for additional protective components while maintaining electrical efficiency and reliability
2Reliability
If electrical components (resistors or switches) are coupled to the circuit board to prevent short circuits, then reliability is improved, but device size increases and performance deteriorates
Solution Approach 1:
The patent merges the safety switch function directly into the battery pack housing, combining the protective function with the power source. This integration eliminates the need for separate external switches or resistors that would increase device complexity, while maintaining reliable short circuit prevention through the integrated safety switch
Solution Approach 2:
The patent extracts the safety switch from the external circuit board and relocates it within the battery pack housing. This extraction removes the need for additional external components that would increase device size and complexity, while the safety function remains intact through the integrated switch
3Ease of operation
If external switches are used to control power, then power management is improved, but ergonomics deteriorate due to shifted center of gravity
Solution Approach 1:
The patent merges the power switch with the battery pack housing, combining the power control function with the power source itself. This integration ensures that the center of gravity remains vertically aligned with the battery pack, maintaining optimal ergonomics while providing manual power control capability through the externally accessible switch
Data Source
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AI summary
An electroporation device having a battery pack including a plurality of battery cells and at least one lead in electrical communication with a circuit board. The battery pack including a safety switch and a controller for selectively placing the battery cells in electrical communication with the one lead. Where the controller is in operable communication with the safety switch such that when the controller detects one or more operating conditions the controller instructs the safety switch to electrically isolate the lead from the battery cells. The battery pack also includes a manual switch, and where activation of the switch causes the controller to instruct the safety switch to electrically isolate the lead from the battery cells.