Electronic Device Housing with Segmented Liquid Refrigerant Cooling
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Solution Overview
Problem
Existing electronic devices with cooling sections that use liquid refrigerants risk having the circuit board wet due to potential leaks from the cooling section.
Innovation Solution
The electronic device is designed with a housing that includes a first and second housing member, where at least one of these members has a housing part for the circuit board and a hollow part for the liquid refrigerant flow. The housing members are assembled such that the surfaces face each other, creating a separation between the housing part and the hollow part, thereby preventing liquid refrigerant leaks from reaching the circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling section with liquid refrigerant is integrated into the housing, then cooling performance is improved, but the risk of liquid refrigerant leaking onto the circuit board increases
Solution Approach 1:
The housing is divided into separate housing members (first housing member and second housing member) that are assembled together. The circuit board is housed in one housing member while the liquid refrigerant flow path is formed between the housing members, creating physical separation between the cooling section and the circuit board housing section. This segmentation allows the cooling function to be maintained while preventing liquid refrigerant from reaching the circuit board.
2Reliability
If the housing part and hollow part are separated, then protection against liquid refrigerant leakage is improved, but device complexity increases
Solution Approach 1:
The housing members are designed to perform multiple functions simultaneously: they provide structural support for the device, form the liquid refrigerant flow path between them, and act as barriers preventing liquid refrigerant from reaching the circuit board. By merging these functions into the housing structure itself, the design achieves effective separation and protection without adding separate protective components, thus maintaining simplicity.
Data Source
AI summary
An electronic device includes at least one circuit board and a housing. The housing includes a first housing member and a second housing member, at least one of which is provided with a housing part to house the circuit board therein. The first housing member and the second housing member are assembled together so that a hollow part that allows a liquid refrigerant to flow is provided between a facing surface of the first housing member and a facing surface of the second housing member. At least one of the first housing member or the second housing member is provided with an inlet/outlet port in communication with the hollow part. The housing part and the hollow part are separated from each other by the first housing member and the second housing member.


