Selectable Multi-Section Capacitor for Fast Field Replacement
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Solution Overview
Problem
Servicemen face inefficiencies in replacing capacitors due to varying values needed for air-conditioning and other systems, leading to extended service times and inventory challenges, as they often need to carry multiple capacitors of different values.
Innovation Solution
A single capacitor with multiple selectable capacitance values, featuring a deformable cover that disconnects upon failure, allowing connection to various electric circuits to replace failed capacitors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If servicemen carry multiple capacitors of different values in the service truck, then they can replace various failed capacitors, but it is difficult and expensive to maintain such an inventory
Solution Approach 1:
The patent applies universality by designing a single capacitor device that can perform multiple functions - specifically, it can provide different capacitance values (such as 5μF, 10μF, 15μF, 20μF) through internal switching mechanisms. This allows one universal capacitor to replace what would traditionally require multiple different capacitor units, directly resolving the inventory complexity problem while maintaining the ability to service various air conditioning systems.
Solution Approach 2:
The capacitor is segmented into multiple independent capacitor sections (first capacitor section, second capacitor section, etc.) that can be selectively connected. Each section has a specific capacitance value, and by connecting different combinations of these sections, the device can provide various total capacitance values. This segmentation enables a single capacitor to function as multiple different capacitors.
2Reliability
If servicemen return to the shop or visit a supplier to pick up a replacement capacitor, then they can get the required value capacitor, but the travel time greatly extends the overall repair time
Solution Approach 1:
The universal capacitor with selectable capacitance values ensures that the correct capacitor is always available on-site, eliminating the need for servicemen to return to the shop or visit suppliers. The device can be configured to provide any required capacitance value from its range, ensuring immediate availability and drastically reducing repair time while maintaining reliability.
Solution Approach 2:
The capacitor is pre-configured with multiple capacitor sections and switching mechanisms that allow rapid reconfiguration between different capacitance values. This preliminary preparation of multiple configurations within a single device enables the serviceman to quickly adapt to different repair needs without time-consuming trips to retrieve different capacitors.
3Quantity of substance
If a single capacitor with multiple capacitance values is used, then inventory needs are reduced, but the device structure becomes more complex
Solution Approach 1:
The single capacitor device is divided into multiple discrete capacitor sections (first capacitor section with first capacitance value, second capacitor section with second capacitance value, etc.). Each section is electrically independent and can be selectively connected to the circuit. This segmentation allows the device to provide multiple capacitance values while maintaining a manageable internal structure.
Solution Approach 2:
The capacitor incorporates dynamic switching mechanisms (such as switches or relays) that allow the electrical connection configuration to be changed based on the required capacitance value. This dynamic reconfigurability enables a single physical device to adapt its electrical characteristics, reducing the number of capacitors needed while the complexity is managed through automated or standardized switching arrangements.
Data Source
AI summary
An apparatus is disclosed which includes an electrolytic capacitive element with multiple capacitor sections.