Quick-Swap Connector Geometry for Low-Resistance Cooling Flow
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Solution Overview
Problem
Existing quick-swap connector assemblies for battery electric vehicles face significant flow resistance due to size limitations, which affect the efficiency of cooling water passage and heat dissipation.
Innovation Solution
The connector assembly optimizes the size relationship between the valve body and valve core, with specific diameter ratios and distances, to minimize flow resistance while maintaining a compact design, utilizing movable valve cores and collars to seal and open flow passages efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the quick-swap connector assembly is made compact to fit limited assembly space, then the assembly size is reduced, but the flow resistance of cooling water increases
Solution Approach 1:
The patent applies parameter changes by optimizing the diameter ratio between valve body and valve core to a specific range (1.55-1.74), and adjusting the distance between adjacent valve cores (0.24-0.32 times the valve core diameter). These parameter optimizations reduce flow resistance while maintaining compact assembly dimensions, directly resolving the contradiction between size reduction and flow resistance increase.
2Volume of moving object
If the valve body and valve core sizes are reduced to maintain compact assembly, then the assembly remains compact, but the flow passage area decreases increasing flow resistance
Solution Approach 1:
The patent optimizes the geometric parameters by setting the valve body outer diameter to valve core outer diameter ratio (D11/P1) between 1.55-1.74, and the flow passage port inner diameter to valve core outer diameter ratio (Q1/P1) between 1.02-1.03. These parameter changes ensure sufficient flow passage area while maintaining compact overall dimensions.
Solution Approach 2:
The patent arranges multiple valve cores in a spatial configuration where the distance between adjacent valve cores (S) is optimized (P1/S = 0.24-0.32). This spatial arrangement in three-dimensional space maximizes the flow passage area within the constrained valve body volume, effectively increasing the flow capacity without increasing the overall assembly size.
Data Source
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AI summary
The disclosure relates to the technical field of new energy vehicles, and particularly provides a quick-swap connector, a quick-swap connector assembly, a cooling water system, and an electric vehicle, which are intended to solve the problem in the prior art of the generation of a large flow resistance when cooling water passes through the quick-swap connector assembly due to size limitations. To this end, the quick-swap connector of the disclosure includes: a first valve body, provided with a first flow passage port, a first flow passage channel in communication with the first flow passage port being provided in the first valve body; and a first valve core, movably arranged in the first flow passage channel, the first valve core being sealingly engaged with or disengaged from the first valve body by means of movement, wherein the first valve body has an outer diameter of D11, and the first valve core has an outer diameter of P1, where D11/P1 has a value in the range of 1.55 to 1.74. In the quick-swap connector of the disclosure, by adjusting the size relationship between the first valve body and the first valve core, under the condition of size limitations, the flow resistance of the cooling water is made smaller when flowing through the first valve body, thereby taking both the size and the flow resistance into consideration and improving the heat dissipation efficiency.