Automobile air conditioner high-pressure pipe assembly with multiple limiting structures
By using a circumferential anti-rotation structure with multi-lobed irregular protrusions and grooves and a trapezoidal ring groove self-locking structure, combined with the pre-tightening repulsive force of the elastic damping sleeve, the problems of sealing ring wear, poor NVH performance, and loosening of limit snap rings in high-pressure pipe joints of air conditioning in new energy vehicles under high-frequency vibration and high-pressure alternating conditions are solved, achieving stable connection and improved safety.
CN122407892APending Publication Date: 2026-07-17XINCHANG FOCHENG REFRIGERATION
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XINCHANG FOCHENG REFRIGERATION
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-17
Smart Images
Figure CN122407892A_ABST
Abstract
本发明公开了一种具有多重限位结构的汽车空调高压管总成，涉及汽车热管理技术领域。该总成包括高压管、连接接头及弹性阻尼套。高压管插入连接接头内，其前端的多瓣式异形凸起段与接头内部的匹配凹槽嵌合防转；其轴向设有梯形环槽，弹性卡接件穿过接头卡入所述梯形环槽内。弹性阻尼套被轴向压缩限定在凸起段与弹性卡接件之间，施加向后的预紧斥力，迫使梯形环槽的倾斜侧壁与弹性卡接件保持楔形贴合的自锁状态。本发明利用结构间的协同受力，集周向防转、径向吸能降噪及轴向预紧自锁于一体，解决了高频震动工况下管路磨损泄漏及松脱爆管的安全隐患问题。
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