Thermoelectric Element Cooling Control for Storage Device Temperature Management
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Solution Overview
Problem
Data storage devices, such as SSDs, face performance degradation due to temperature fluctuations, with elevated temperatures increasing endurance but degrading data retention, and low temperatures causing other degrading effects, while also emitting excessive heat, leading to operational issues if temperature limits are exceeded.
Innovation Solution
A method and device that utilize a temperature sensor to alternately activate or deactivate power and performance control signals to manage the operating temperature, employing a thermoelectric element for cooling and performance throttling, thereby controlling the storage device's temperature and performance to minimize degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the cooling performance of the thermoelectric element is increased to manage operating temperature, then the operating temperature is controlled, but the power consumption increases
Solution Approach 1:
The patent applies dynamics by making the cooling performance of the thermoelectric element adjustable rather than fixed. The controller dynamically changes the cooling performance based on real-time temperature information from the temperature sensor, activating or deactivating power control signals to multiple thermoelectric elements according to temperature thresholds and patterns, thereby optimizing power consumption while maintaining temperature control.
Solution Approach 2:
The patent implements periodic action by receiving temperature information periodically from the temperature sensor and alternately activating or deactivating power control signals based on temperature patterns. The controller monitors temperature changes over time and adjusts cooling performance in periodic cycles, turning cooling on when temperature exceeds thresholds and off when temperature decreases, thus reducing overall power consumption.
2Temperature
If the cooling performance is continuously maximized to maintain optimal temperature, then the temperature control is effective, but the degradation of storage device performance increases due to excessive cooling
Solution Approach 1:
The patent applies partial action by providing different cooling performances to different thermoelectric elements based on their specific temperature conditions. Instead of uniformly maximizing cooling across all elements, the controller selectively activates or deactivates power control signals to individual elements or groups, providing just enough cooling where needed while avoiding excessive cooling that could degrade performance.
Solution Approach 2:
The patent implements local quality by treating different thermoelectric elements with different cooling strategies based on local temperature conditions. The controller can independently control cooling performance for each thermoelectric element or group, allowing localized temperature management rather than uniform cooling, thus preventing performance degradation in regions that don't require maximum cooling.
3Temperature
If multiple thermoelectric elements are activated simultaneously to enhance cooling, then the cooling performance is improved, but the power consumption and complexity of control increase
Solution Approach 1:
The patent applies segmentation by dividing the thermoelectric elements into multiple groups or individuals that can be controlled separately. The controller manages each thermoelectric element or group independently through separate power control signals, allowing selective activation based on temperature conditions. This segmentation reduces overall control complexity compared to managing a single high-power cooling system.
4Temperature
If the operating performance of the storage device is throttled to reduce heat generation, then the temperature control is improved, but the productivity of the device decreases
Solution Approach 1:
The patent applies dynamics by making the operating performance throttling adjustable rather than fixed. The controller dynamically adjusts the degree of performance throttling based on real-time temperature conditions, reducing performance only when necessary to control temperature while maintaining full performance when temperature is acceptable, thus minimizing the impact on productivity.
Solution Approach 2:
The patent implements parameter changes by adjusting the operating performance parameters of the storage device based on temperature conditions. The controller changes performance parameters such as data transfer rates or processing speeds in response to temperature thresholds, allowing the device to operate at optimal performance levels when cool and reduce performance only when temperature requires control.
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
This approach effectively manages the storage device's temperature, improving thermal response and minimizing power consumption by dynamically adjusting cooling performance and operating performance based on temperature changes.
Implementation Method 1
a thermoelectric element configured to control an operating temperature of the storage device
Implementation Method 2
the first temperature control operation includes controlling a cooling performance of a thermoelectric element included in the storage device
Data Source
AI summary
In a method of operating a storage device, temperature information is received from a temperature sensor. At least one power control signal and at least one performance control signal are alternately output based on the temperature information. A first temperature control operation and a second temperature control operation are alternately performed based on the at least one power control signal and the at least one performance control signal. The first temperature control operation is performed to control cooling performance of a thermoelectric element included in the storage device based on the at least one power control signal. The second temperature control operation is performed to control a throttling of operating performance of the storage device based on the at least one performance control signal.