CN113374962A - R744制冷剂空调管路连接技术 - Google Patents

R744制冷剂空调管路连接技术 Download PDF

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Publication number
CN113374962A
CN113374962A CN202110761649.5A CN202110761649A CN113374962A CN 113374962 A CN113374962 A CN 113374962A CN 202110761649 A CN202110761649 A CN 202110761649A CN 113374962 A CN113374962 A CN 113374962A
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pipe
refrigerant
tube
metal hard
lining
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乐敏
徐炜元
颜锦杰
颜伟杰
孙佳
谢广帅
马龙
马小四
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Ocean Fluid Technology Shanghai Co ltd
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Ocean Fluid Technology Shanghai Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • B60H1/00571—Details of ducts or cables of liquid ducts, e.g. for coolant liquids or refrigerants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F16L11/115—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/15—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

本发明公开了R744制冷剂空调管路连接技术，包括R744制冷剂胶管、内衬管和端部带有喇叭口的金属硬管，所述金属硬管套接扣压R744制冷剂胶管，所述内衬管设于金属硬管和R744制冷剂胶管内部，所述内衬管与金属硬管之间连接设有第一密封件，所述内衬管与R744制冷剂胶管之间连接设有第二密封件。本发明与现有技术相比的优点在于：保持稳定密封效果，提高支撑连接强度。

Description

R744制冷剂空调管路连接技术
技术领域
本发明涉及汽车空调管路技术领域，具体是指R744制冷剂空调管路连接技术。
背景技术
现有的空调管路扣压结构图如图1所示：主要由一根端部带有滚压齿形的铝管1、扣压套2、空调胶管3组成，其中扣压套2套在空调胶管3外侧，将端部带有滚压齿形的铝管插入已经套上扣压套2的空调胶管3中。通过设备挤压扣压套2，且扣压套2扣压的部位与端部带有滚压齿形的铝管1滚压齿形位置相对应，通过压缩空调胶管3壁厚的方式来实现端部带有滚压齿形的铝管1和空调胶管3的方式来进行连接和密封。
现有的空调管路连接技术使用涂胶工艺后进行扣压，从而实现密封效果，金属硬管端部带有滚压齿形，金属硬管使用前需要进行涂胶工艺，烘干后可进行使用，扣压选用三道扣压形式，该结构稳定，耐压，耐温，耐渗透性能稳定。但是随着R744介质的应用，其工作压力提升了3-4倍，工作温度提升至165℃，现有的空调胶管及连接技术无法满足R744二氧化碳空调系统的工作要求。
R744二氧化碳空调胶管内层是带有金属波纹管，以现有的端部带有滚压齿形的铝管1与R744二氧化碳空调胶管与扣压套2扣压，三者之间两两都会存在缝隙从而导致泄漏，无法满足气密性的要求。
发明内容
本发明要解决的技术问题是克服以上技术缺陷，提供一种保持稳定密封效果，提高支撑连接强度的R744制冷剂空调管路连接技术。
为解决上述技术问题，本发明提供的技术方案为：R744制冷剂空调管路连接技术，包括R744制冷剂胶管、内衬管和端部带有喇叭口的金属硬管，所述金属硬管套接扣压R744制冷剂胶管，所述内衬管设于金属硬管和R744制冷剂胶管内部，所述内衬管与金属硬管之间连接设有第一密封件，所述内衬管与R744制冷剂胶管之间连接设有第二密封件。
进一步的，所述金属硬管上靠近喇叭口向外凸起形成内侧凹槽，所述第一密封件设于内侧凹槽内。
进一步的，所述R744制冷剂胶管内壁设有金属波纹管，所述第二密封件设于金属波纹管凹陷处。
进一步的，位于所述金属硬管内的内衬管直径大于位于所述R744制冷剂胶管内的内衬管直径。
本发明与现有技术相比的优点在于：
现有技术相比，本发明使用了耐渗透性能＜0.1g/m.d R744制冷剂胶管，利用第一密封件、第二密封件静态密封的特性，将R744制冷剂胶管内测金属波纹管，内衬管及金属硬管内侧凹槽视为密封面，形成有效的密封效果。同时利用金属硬管的喇叭口与R744制冷剂胶管之间的扣压结构，实现金属硬管与R744制冷剂胶管的可靠连接。同时在连接部位的内衬管起到支撑作用，提高了连接的强度及抗拉脱的性能。
附图说明
图1为现有的空调管路扣压结构图；
图2为本发明R744制冷剂空调管路连接技术结构示意图。
图3为本发明R744制冷剂空调管路连接技术剖视结构示意图。
附图中：1、金属硬管，2、第一密封件，3、第二密封件，4、内衬管，5、R744制冷剂胶管，6、内侧凹槽，7、金属波纹管。
具体实施方式
下面结合附图对本发明做进一步的详细说明。
结合图2-3所示，R744制冷剂空调管路连接技术，包括R744制冷剂胶管5、内衬管4和端部带有喇叭口的金属硬管1，所述金属硬管1套接扣压R744制冷剂胶管5，所述内衬管4设于金属硬管1和R744制冷剂胶管5内部，所述内衬管4与金属硬管1之间连接设有第一密封件2，所述内衬管4与R744制冷剂胶管5之间连接设有第二密封件3。
所述金属硬管1上靠近喇叭口向外凸起形成内侧凹槽6，所述第一密封件2设于内侧凹槽6内，所述R744制冷剂胶管5内壁设有金属波纹管7，所述第二密封件3设于金属波纹管7凹陷处，位于所述金属硬管1内的内衬管4直径大于位于所述R744制冷剂胶管5内的内衬管4直径。
本发明在具体实施时：将第一密封件2安装到金属硬管1内侧凹槽6处，第二密封件3安装到R744制冷剂胶管5金属波纹管7内凹陷处，第一密封件2和第二密封件3均可采用密封圈。然后将内衬管4插入到已安装第二密封件3的R744制冷剂胶管5，这样在R744制冷剂胶管5与内衬管4之间形成了第二密封件3静态密封状态。再将装好密封件2的金属硬管1套在R744制冷剂胶管5外侧，且内衬管3长度超过金属硬管1内侧凹槽6的位置。最终通过设备扣压金属硬管1的喇叭口完成本发明的可靠连接。
以上对本发明及其实施方式进行了描述，这种描述没有限制性，附图中所示的也只是本发明的实施方式之一，实际的结构并不局限于此。总而言之，如果本领域的普通技术人员受其启示，在不脱离本发明创造宗旨的情况下，不经创造性的设计出与该技术方案相似的结构方式及实施例，均应属于本发明的保护范围。

Claims (3)

1.R744制冷剂空调管路连接技术，包括R744制冷剂胶管(5)、内衬管(4)和端部带有喇叭口的金属硬管(1)，其特征在于：所述金属硬管(1)套接扣压R744制冷剂胶管(5)，所述内衬管(4)设于金属硬管(1)和R744制冷剂胶管(5)内部，所述内衬管(4)与金属硬管(1)之间连接设有第一密封件(2)，所述内衬管(4)与R744制冷剂胶管(5)之间连接设有第二密封件(3)。
2.根据权利要求1所述的R744制冷剂空调管路连接技术，其特征在于：所述金属硬管(1)上靠近喇叭口向外凸起形成内侧凹槽(6)，所述第一密封件(2)设于内侧凹槽(6)内。
3.根据权利要求1所述的R744制冷剂空调管路连接技术，其特征在于：所述R744制冷剂胶管(5)内壁设有金属波纹管(7)，所述第二密封件(3)设于金属波纹管(7)凹陷处。
CN202110761649.5A 2021-07-06 2021-07-06 R744制冷剂空调管路连接技术 Pending CN113374962A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116045104A (zh) * 2023-01-10 2023-05-02 浙江伟众科技有限公司 空调软硬管连接密封装置及其方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116045104A (zh) * 2023-01-10 2023-05-02 浙江伟众科技有限公司 空调软硬管连接密封装置及其方法
CN116045104B (zh) * 2023-01-10 2024-05-10 浙江伟众科技有限公司 空调软硬管连接密封装置及其方法

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