汽車空調(diào)接頭密封方式的研究和優(yōu)化探討

摘 要：空調(diào)管路接頭形式對空調(diào)系統(tǒng)的密封性能有著重要的影響，本文以蒸發(fā)器與膨脹閥之間的壓板接頭為例，分析了兩種常見典型的壓板接頭的結(jié)構(gòu)形式、加工方式、尺寸特性等對密封性能的影響，提出了另一種成本相對低且可以確保泄漏性能的技術(shù)方案，為汽車空調(diào)密封連接設計提供參考。

關鍵詞：漲接壓板結(jié)構(gòu) 機加工壓板結(jié)構(gòu) O型圈 泄漏 密封方式

Research and Optimization of Sealing Method of Automobile Air Conditioning Joint

Zhao Honghan，Yang Dongdong，Li Rongzhen

Abstract：The form of air conditioning pipeline joint has an important influence on the sealing performance of air conditioning system. Taking the pressure plate joint between the evaporator and the expansion valve as an example， this paper analyzes the influence of the structure， processing mode and size characteristics of two common typical pressure plate joints on the sealing performance， and proposes another technical scheme with relatively low cost and can ensure leakage performance， which provides a reference for the sealing connection design of automotive air conditioning.

Key words：riser plate structure， machined pressure plate structure， O-ring， leakage， sealing method

1 引言

汽車空調(diào)系統(tǒng)的密封問題一直是行業(yè)內(nèi)不斷研究的課題，當前主要采用壓板結(jié)構(gòu)的徑向雙O型圈密封的方式以滿足其較高的泄漏性要求。（剩余3221字）