Utility Meter Thermal Compartment Design
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Solution Overview
Problem
Utility meters with electronic circuits face excessive temperature rise due to heat generated by components, which reduces the expected life of electronic components and limits the amount and functionality of circuitry, as traditional cooling methods like air vents are not feasible due to weather simulation test requirements.
Innovation Solution
The implementation of a heat conductive member or arrangement that separates the meter into compartments, allowing heat to be transferred from a heat-generating component in an inner compartment to an outer compartment, using heat sinks, heat pipes, or thermoelectric components to manage and dissipate heat effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic components are added to provide enhanced functionality, then the functionality of the meter is improved, but the temperature rise inside the meter increases
Solution Approach 1:
The meter housing is divided into multiple compartments using thermal barriers. The electronic components are segregated into specific compartments that are thermally isolated from other components, allowing heat to be contained and managed in dedicated zones rather than distributing throughout the entire meter.
Solution Approach 2:
Thermal barriers act as intermediary elements between heat-generating electronic components and other meter components. These barriers intercept and redirect heat flow, preventing direct thermal coupling between components and enabling the coexistence of multiple functional elements at different temperature zones.
2Temperature
If traditional cooling methods like air vents are used to reduce temperature rise, then the temperature management is improved, but the compliance with weather simulation tests is compromised
Solution Approach 1:
The internal space is segmented into thermally isolated compartments using solid barriers, eliminating the need for air vents or openings in the housing. Each compartment can be independently managed for heat dissipation while maintaining the overall sealed structure required for weather simulation compliance.
Solution Approach 2:
The cooling function is extracted from the external housing structure (no air vents needed) and implemented internally through thermal barriers and strategic component placement. Heat management is achieved through internal thermal architecture rather than external ventilation modifications.
3Adaptability or versatility
If more electronic circuitry is added to increase functionality, then the versatility of the meter is improved, but the heat generated by components increases
Solution Approach 1:
The meter interior is divided into multiple thermal zones using barriers, allowing different functional components to be placed in zones with appropriate thermal characteristics. Heat-generating components are isolated in dedicated compartments, enabling higher overall functionality without proportional increase in temperature affecting all components.
Solution Approach 2:
Different regions of the meter are designed with different thermal properties. Certain compartments are optimized for heat dissipation while others are insulated, allowing each component to operate in its optimal thermal environment. This enables diverse functionality with components experiencing locally appropriate temperature conditions.
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 solution effectively reduces temperature rise within the meter, thereby extending the life of electronic components and enabling increased functionality, including the integration of high-heat-generating components like broadband power line carrier modems, without compromising weather simulation test compliance.
Implementation Method 1
a heat conductive member that extends from a first compartment containing at least one heat generating component to a second compartment in the meter
Implementation Method 2
at least a first barrier separating the first compartment from the second compartment
Data Source
AI summary
An utility meter is provided. The meter includes a base and a first barrier operably associated with the base. The base and the first barrier define a first compartment between the base and the first barrier. The meter also includes a heat generating component positioned in the first compartment and operably associated with the base. The meter also includes a second barrier extending from the base. The second barrier and the first barrier define a second compartment between the second barrier and the first barrier. The meter further includes an arrangement for moving heat connected to the heat generating component and extending from the first compartment to the second compartment.