Vehicle air conditioning system

The vehicle air conditioning system addresses moisture reintroduction into the cabin by using a humidity control device with a narrowly defined flow-blocking portion and separate airflow paths, effectively preventing moisture accumulation and maintaining cabin humidity.

JP2026096816APending Publication Date: 2026-06-15NGK CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
NGK CORP
Filing Date
2024-12-03
Publication Date
2026-06-15

AI Technical Summary

⚠Technical Problem

Existing vehicle air conditioning systems risk introducing moisture detached from adsorbents into the passenger compartment due to airflow stagnation at the end face of the adsorption section, leading to increased humidity.

⚗Method used

A vehicle air conditioning system with a humidity control device featuring a flow-blocking portion and a flow-allowing portion, where the maximum width of the flow-blocking portion is limited to 10 mm or less, and a duct configuration that separates airflow paths to prevent moisture accumulation and introduction into the passenger compartment.

🎯Benefits of technology

Reduces the risk of moisture remaining in the duct and being introduced into the passenger compartment by minimizing airflow stagnation and moisture accumulation, thereby maintaining optimal cabin humidity levels.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a vehicle air conditioning system that can reduce the risk of moisture detached from the adsorbent remaining in the duct and thus reduce the risk of that moisture being introduced into the vehicle's interior. [Solution] The vehicle air conditioning system comprises a humidity control device 2 and a duct 3 through which air 10 from the vehicle's cabin or outside can flow, with the humidity control device 2 located inside the duct. The end face of the humidity control device 2 is provided with a flow obstruction portion 22 arranged in a strip shape on the outer circumference of the end face to obstruct the flow of air 10, and a flow permitting portion 23 located inside the flow obstruction portion 22 to allow the flow of air 10. When viewing the end face of the humidity control device 2 inside the duct 3 from the downstream side in the direction of air flow, the maximum width W of the flow obstruction portion 22 is 10 mm or less.
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