Smart Battery Pack Single Data Line Type Recognition
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Solution Overview
Problem
Conventional smart battery packs require two data lines for communication with external devices, which is impractical for compact electronic appliances due to space constraints and increases manufacturing costs, and does not ensure safe power supply if the battery type is incompatible.
Innovation Solution
A smart battery pack design utilizing a single data line for communication, with a timer circuit and switches to control power supply based on battery type recognition, ensuring safe and cost-effective operation by using a data terminal for both the battery pack and external device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two data lines are used for communication between smart battery pack and external set, then data transmission reliability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the data transmission function and power supply control function into a single data line. The single data line serves dual purposes: transmitting battery information (type, remaining capacity, temperature) and controlling power supply through timed signal sequences. This merging eliminates the need for separate control lines while maintaining reliable communication and control.
Solution Approach 2:
The single data line is designed to perform multiple functions: bidirectional data transmission, battery type recognition, authentication, and power supply control. By making the data line universal, the patent reduces the number of terminals required while ensuring reliable operation through integrated control mechanisms.
2Reliability
If two data lines are used for communication, then data transmission is achieved, but manufacturing cost increases
Solution Approach 1:
The patent merges multiple functions into a single data line, reducing the number of terminals from two to one. This reduction directly lowers manufacturing costs by eliminating redundant terminals and simplifying the connection interface between the smart battery pack and the external set.
Solution Approach 2:
The single data line is designed to handle multiple communication tasks including battery status reporting, type recognition, and authentication. This multi-functionality reduces the overall terminal count and associated manufacturing costs while maintaining full communication capability.
3Productivity
If power supply is enabled without battery type verification, then power delivery is immediate, but device safety is compromised
Solution Approach 1:
The patent implements preliminary battery type recognition and authentication before enabling power supply. The single data line first transmits battery type information, which the external set verifies against its requirements. Only after successful verification does the system enable power delivery, ensuring safety while maintaining efficient operation.
Solution Approach 2:
The system uses feedback mechanisms where the external set receives battery type information through the single data line, verifies compatibility, and then provides authentication signals back through the same line. This feedback loop ensures that power supply is only enabled when the battery type is verified as safe and compatible.
Data Source
AI summary
A smart battery pack and a method for recognizing the battery type using the same. The smart battery pack includes at least one battery cell coupled to an external set via positive and negative electrode terminals. A timer circuit is coupled to the external set via a data terminal and is adapted to apply a predetermined timer circuit signal for a period of time when a predetermined signal is applied from the external set. A first switch is controlled by the timer circuit and applies electric power from the battery cell, and a register outputs a predetermined register signal causing a smart battery controller to output battery type information to the external set. The smart battery pack has only one data line between the smart battery pack and the external set (and one data terminal on each) facilitating communication between the devices while maintaining a reduced manufacturing cost.