Integrated Receiver Dryer Joint for Thin Condenser Assembly
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Solution Overview
Problem
Conventional receiver dryers for air conditioners in vehicles have a complex construction with multiple parts, leading to increased size and weight, and require a thick joint portion for connection to the condenser, which complicates installation and increases costs.
Innovation Solution
A receiver dryer design that omits the closing member and connector bolts, using a bottomed cylindrical body with a joint portion featuring a reduced-diameter taper surface or step shape for refrigerant passage, integrated desiccant, filter, and strainer, and a mechanical fixing mechanism to integrate with the condenser, allowing for a thinner joint and reduced part count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a closing member and connector bolts are used to connect the receiver dryer to the condenser, then the connection is secure and reliable, but the number of parts increases, the weight increases, and the installation construction becomes complex
Solution Approach 1:
The closing member and connector functions are merged into a single integrated joint portion. The joint portion includes an external thread that directly engages with the condenser, eliminating the need for separate closing members and connector bolts. This integration reduces the number of parts while maintaining secure connection through the threaded engagement mechanism.
2Reliability
If a closing member and connector bolts are used to connect the receiver dryer to the condenser, then the connection is secure and reliable, but the weight of the system increases
Solution Approach 1:
Multiple components (closing member, connector, bolts) are merged into a single joint portion structure. The joint portion integrates the closing function and connection function into one piece with an external thread, significantly reducing the total weight of fastening components while maintaining secure attachment to the condenser.
3Strength
If a thick joint portion is used to threadedly connect the receiver dryer to the condenser, then the connection strength is sufficient, but the overall size of the receiver dryer increases
Solution Approach 1:
The joint portion has a localized reduced-diameter section with external threads that engages with the condenser. This localized threading provides sufficient connection strength without requiring a uniformly thick joint portion throughout the entire receiver dryer body, thus minimizing the overall volume while maintaining adequate connection strength at the critical interface.
Data Source
AI summary
A receiver dryer for storing and drying a refrigerant for an air conditioner is integrally fixed to a condenser to form an assembly. A condenser has refrigerant flow passages, and also has an opening portion for assembling a receiver dryer. In a body of the receiver dryer, a desiccant and members such as a filter are inserted. The refrigerant flows into the receiver dryer from the flow passage through a hole, and flows out to the outflow passage side through a strainer. A ring-shaped protruding portion is formed on the body by bulging, and the body is fixed to the condenser by a C ring.