WO2020073647A1 - 一种汽车空调软管组合件及其制作方法 - Google Patents

一种汽车空调软管组合件及其制作方法 Download PDF

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Publication number
WO2020073647A1
WO2020073647A1 PCT/CN2019/086621 CN2019086621W WO2020073647A1 WO 2020073647 A1 WO2020073647 A1 WO 2020073647A1 CN 2019086621 W CN2019086621 W CN 2019086621W WO 2020073647 A1 WO2020073647 A1 WO 2020073647A1
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hose
groove
automobile air
parts
hose assembly
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PCT/CN2019/086621
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English (en)
French (fr)
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马妍
王亮燕
郭磊
王峰
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南京利德东方橡塑科技有限公司
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Priority claimed from CN201821650250.XU external-priority patent/CN209278688U/zh
Priority claimed from CN201811185550.XA external-priority patent/CN109296857B/zh
Application filed by 南京利德东方橡塑科技有限公司 filed Critical 南京利德东方橡塑科技有限公司
Publication of WO2020073647A1 publication Critical patent/WO2020073647A1/zh

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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

Definitions

  • the invention belongs to the technical field of automobile air conditioning systems, and particularly relates to an automobile air conditioning hose assembly and a manufacturing method thereof.
  • connection method of the air conditioner hose assembly is to use a gluing process followed by buckling and riveting to achieve the sealing effect.
  • the joint lining needs to be coated with a layer of glue first. Not only is the process complicated, but it also pollutes the environment and threatens the health of workers. In subsequent use, the glue is easy to fail, the hose is easily pulled off, and the sealing performance of the hose assembly is poor.
  • Chinese patent ZL201720956091.5 discloses an air-conditioning pipe assembly connection structure, without using a glue process, when the three-layer structure hose is pressed onto the core pipe by the crimping deformation of the crimping machine, the core pipe is easily deformed, the core pipe It cannot be tightly attached to the hose, the sealing performance is poor, and the three-layer structure hose has poor permeability, which cannot meet the permeability of the refrigerant HFC-134a / HFO-1234yf in the standards SAE J2064-2015 and SAE J3062-2015 Requirements less than 1.5kg / m 2 / year.
  • the purpose of the present invention is to provide an automotive air conditioning hose assembly for solving the problem of poor sealing performance of the existing air conditioning hose assembly, while improving its tensile properties, high and low temperature resistance performance, pressure resistance performance, low permeability performance , NVH performance.
  • An automobile air-conditioning hose assembly includes a hose 1 and a connector 2 fixedly connected to both ends of the hose; the connector 2 includes a bushing 8, a bushing core 9, an aluminum sleeve 10 and a nut 11; one end of the lining core 9 is connected to the hose 1, the other end is sleeved with a movable nut 11 for connection with other equipment, the inner wall of the connecting section of the lining core 9 and the hose 1 is inlaid with a bushing 8,
  • the outer wall is provided with at least two first grooves 12 and two bulges 13, the aluminum sleeve 10 is locked by the groove formed between the two bulges, and the hose 1 is pressed between the lining core 9 and the aluminum sleeve 10
  • At the other end of the liner core 9 is provided with at least two second grooves 14, and a sealing ring 15 is provided in the second groove 14.
  • the hose has a five-layer structure, and the inner rubber layer 3, the barrier layer 4, the middle rubber layer 5, the reinforcement layer 6 and the outer rubber layer 7 are arranged in this order from the inside to the outside.
  • the materials of the inner rubber layer 3, the middle rubber layer 5 and the outer rubber layer 7 are all EPDM rubber composition; the material of the barrier layer 4 is polyamide; the reinforcement layer 6 The material is one of polyethylene terephthalate and polyvinyl alcohol.
  • the reinforcing layer 6 is a woven structure layer.
  • the EPDM rubber composition is formulated by including the following parts by weight:
  • EPDM 100 parts of EPDM, 40-100 parts of carbon black, 10-30 parts of talc powder, 10-50 parts of paraffin oil, 5-15 parts of Gumaron resin, 3-6 parts of zinc oxide, stearin 1 to 2.5 parts of acid, 4 to 7 parts of dicumyl peroxide, and 2 to 5 parts of triallyl isocyanurate.
  • the ethylene content in the EPDM rubber is 45% -65%
  • the content of the third monomer ethylidene norbornene is 5.0% -7.0%.
  • the EPDM rubber is synthesized by metallocene catalysis.
  • the EPDM rubber composition uses two kinds of paraffin oil and Gumaron resin as a plasticizing system, so that the rubber composition has a small dynamic and static stiffness ratio, a large damping coefficient, and good vibration damping performance; Ethylene propylene rubber, with dicumyl peroxide and triallyl isocyanurate as the vulcanization system, makes the rubber composition excellent in high and low temperature resistance; the talc used at the same time has a special layered structure, It can prevent the penetration of refrigerant, and cooperate with the barrier layer to prevent the penetration of refrigerant.
  • the hose can be manufactured by the following manufacturing methods, including:
  • Step (1) extruding the inner rubber layer, the barrier layer and the middle rubber layer in sequence on the mandrel;
  • Step (2) Weave a layer of polyethylene terephthalate yarn or polyvinyl alcohol yarn on the medium rubber layer by a knitting machine to obtain a reinforcement layer;
  • Step (3) extruding the outer rubber layer on the reinforcement layer to obtain a tube blank
  • Step (4) Place the hose blank in a vulcanization tank, and use saturated steam as a heat transfer medium to carry out heating and pressure vulcanization.
  • the saturated vapor pressure is 0.5 to 0.65 MPa, and the vulcanization temperature is 145 to 165 ° C
  • Step (5) Take out the mandrel and obtain the hose.
  • the material of the liner core 9 is aluminum, and the material of the liner 8 is galvanized steel.
  • the first groove 12 is an arc-shaped groove; the depth of the first groove 12 is 0.3-0.6 mm, the width is 0.6-1.2 mm; the distance between two adjacent first grooves is 2.0 ⁇ 2.8mm.
  • the number of the first grooves 12 is 3-10 to form dense-tooth grooves.
  • the second groove 14 is an arc-shaped groove, the depth of the second groove 14 is 1.5-2.0 mm, and the width is 2.5-4 mm; the distance between two adjacent second grooves is 4- 6mm.
  • the number of the second grooves 14 is two.
  • the two bulges 13 are located on the outer surface of the middle of the liner core 9.
  • the bulge 13 is an arc-shaped bulge.
  • the nut 11 is provided with threads inside.
  • the lining core 9 is provided with a protrusion inside the second groove 14; the nut 11 is movably sleeved on the lining core 9 between the protrusion and the outer bulge.
  • Another object of the present invention is to provide a method for manufacturing an automobile air-conditioning hose assembly, including:
  • Step (1) Make a first groove 12 on the outer surface of the connecting section of the liner core 9 and the hose 1 by a rolling groove machine, and make a second groove 14 on the outer surface of the other end; make it in the middle of the liner core 9 by a pier machine A circular drum 13;
  • Step (2) Put the nut 11 on the end of the lining core 9 not connected with the hose;
  • Step (3) flaring at the end of the connecting section of the liner core 9 and the hose 1 by the pier head machine, and inserting the bush 8 on the inner wall of the liner core; Make an arc-shaped drum pack 13 while locking the aluminum sleeve 10 between the two drum packs;
  • Step (4) clean up the sundries and oil on the joint, and install the sealing ring 15 into the second groove 14;
  • Step (5) Insert the hose 1 between the lining core 9 and the aluminum sleeve 10, and press and deform the aluminum sleeve 10 with a crimping machine to buckle the hose 1 on the lining core 9.
  • the hose 1 may also be inserted between the lining core 9 and the aluminum sleeve 10 first, and the aluminum sleeve 10 is crimped and deformed by a crimping machine to deform the hose 1 Withholding on the lining core 9, the sealing ring 15 is inserted into the second groove 14.
  • inside refers to being relatively close to the connection end of the joint and the hose.
  • the automobile air-conditioning hose assembly of the present invention does not use a glue coating process, has good sealing performance, and at the same time has excellent tensile performance, high and low temperature resistance performance, pressure resistance performance, low penetration performance, and NVH performance.
  • the specific performance is:
  • the invention directly buckles the hose between the aluminum sleeve and the lining core through the buckling deformation of the buckling machine, does not need to use the glue coating process, and is green and environmentally friendly.
  • the inner wall of the lining core connected with the hose is inlaid with a bushing.
  • the lining core does not deform, and a dense tooth groove is provided on the lining core to ensure that the hose assembly obtains excellent sealing performance;
  • the sleeve is placed between the two bulges and pressed against the hose to improve the tensile performance of the assembly;
  • the other end of the lining core is designed as a double groove seal to ensure the sealing performance of the hose assembly connected to other equipment. And through the nut and other equipment to achieve threaded connection, further improve the sealing performance.
  • the automobile air-conditioning hose assembly of the present invention uses a five-layer structure hose, and the materials of the inner rubber layer, the middle rubber layer and the outer rubber layer are all EPDM rubber compositions, which have a low dynamic and static stiffness ratio and damping The coefficient is large, the vibration damping performance is good, so the hose NVH performance is excellent, and the EPDM rubber is excellent in high and low temperature resistance, which significantly improves the high and low temperature resistance of the hose;
  • the barrier material is polyamide, which effectively prevents the refrigerant HFC- 134a HFO-1234yf penetration /, to the refrigerant HFC-134a, low permeability hose of the present invention, 0.81kg / m 2 / year, for refrigerants HFO-1234yf, permeability up to 0.29kg / m 2 / year ;
  • the reinforcing layer material is one of polyethylene terephthalate and polyvinyl alcohol, and the hose has excellent pressure resistance.
  • FIG. 1 is a schematic structural view of the automobile air-conditioning hose assembly of the present invention
  • FIG. 2 is a schematic view of the structure of the hose of the automobile air-conditioning hose assembly of the present invention
  • FIG. 3 is a half cross-sectional view of the joint of the automobile air-conditioning hose assembly of the present invention.
  • FIG. 4 is a half cross-sectional view of the lining core of the automobile air-conditioning hose assembly of the present invention.
  • an automotive air conditioning hose assembly includes a hose 1 and joints 2 fixedly connected at both ends of the hose; the hose 1 is an inner rubber layer 3 from inside to outside, Barrier layer 4, middle rubber layer 5, reinforcement layer 6 and outer rubber layer 7; the joints include bushing 8, bushing core 9, aluminum sleeve 10, nut 11; one end of the bushing core 9 and the hose 1 The other end is covered with a movable nut 11 for connection with other equipment.
  • the inner wall of the connecting section of the liner core 9 and the hose 1 is inlaid with a liner 8 and the outer wall is provided with eight arc-shaped first grooves 12
  • a densely toothed groove is formed, and two bulges 13 are provided in the middle of the liner core 9, one end of the aluminum sleeve 10 is locked by the groove formed between the two bulges, and the hose 1 is pressed against the liner core 9 and Between the aluminum sleeve 10; at the other end of the liner core 9, two arc-shaped second grooves 14 are provided, and a sealing ring 15 is provided in the second grooves 14.
  • the depth of the first groove 12 (the depth refers to the maximum value of the groove in the vertical direction) is 0.4 mm, the width (refers to the maximum value of the groove in the horizontal direction) is 1 mm, and the distance between two adjacent first grooves is 2.5mm; the depth of the second groove 14 is 1.8mm, the width is 3mm, the distance between two adjacent second grooves is 5mm; the outer diameter of the sealing ring 15 is slightly smaller than the diameter of the second groove.
  • the lining core 9 is provided with a protrusion inside the second groove 14; the nut 11 is movably sleeved on the lining core 9 between the protrusion and the left side bulge 13 . Moreover, a thread is provided inside the nut 11 for screw connection with other equipment.
  • the materials of the inner rubber layer 3, the middle rubber layer 5 and the outer rubber layer 7 are all EPDM rubber composition, and the EPDM rubber composition is prepared from the following parts by weight : 100 parts of EPDM, 70 parts of carbon black, 20 parts of talc powder, 20 parts of paraffin oil (SUNPAR 2280), 8 parts of Gumaron resin, 4 parts of zinc oxide, and 2 parts of stearic acid , 6 parts of dicumyl peroxide, 3 parts of triallyl isocyanurate; wherein, the EPDM rubber is synthesized by metallocene catalysis, the ethylene content is 45% to 65%, the third single The content of body ethylidene norbornene is 5.0% to 7.0%.
  • the rubber composition has a small ratio of dynamic to static stiffness, a large damping coefficient, and good vibration damping performance. Therefore, the hose has excellent NVH performance, and the EPDM rubber has excellent high and low temperature resistance, so the high and low temperature resistance of the hose is greatly improved.
  • the material of the barrier layer 4 is polyamide, which effectively prevents the penetration of refrigerant HFC-134a / HFO-1234yf; the material of the reinforcement layer 6 is polyethylene terephthalate, and the hose has excellent pressure resistance .
  • Step (1) Make a first groove 12 on the outer surface of the connecting section of the liner core 9 and the hose 1 by a rolling groove machine, and make a second groove 14 on the outer surface of the other end; make it in the middle of the liner core 9 by a pier machine A circular drum 13;
  • Step (2) Put the nut 11 on the end of the lining core 9 not connected with the hose;
  • Step (3) Expand the end of the connecting section of the liner core 9 and the hose 1 by the pier head machine, and insert the bush 8 on the inner wall of the liner core; then use the pier head machine at the outside of the bulge made in step (1) Make an arc-shaped drum pack 13 while locking the aluminum sleeve 10 between the two drum packs;
  • Step (4) clean up the sundries and oil on the joint, and install the sealing ring 15 into the second groove 14;
  • Step (5) Insert the hose 1 between the lining core 9 and the aluminum sleeve 10, and press and deform the aluminum sleeve 10 with a crimping machine to buckle the hose 1 on the lining core 9.
  • the automotive air conditioning hose assembly of this embodiment has excellent tensile properties, high and low temperature resistance, pressure resistance, pulse fatigue resistance, and low permeability properties.
  • the permeability is as low as 0.81 kg / m 2 / year, and for the refrigerant HFO-1234yf, the permeability is as low as 0.29 kg / m 2 / year.
  • the rubber composition of the inner rubber layer, middle rubber layer, and outer rubber layer of the hose has a small ratio of dynamic and static stiffness, a large damping coefficient, and good vibration damping performance, so the hose has excellent NVH performance.

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Abstract

一种汽车空调软管组合件，包括软管（1）和固定连接在软管两端的接头（2）；软管（1）由内到外依次为内胶层（3）、阻隔层（4）、中胶层（5）、增强层（6）和外胶层（7）；接头包括衬套（8）、衬芯（9）、铝套（10）和螺母（11）；衬芯（9）一端与软管（1）连接，另一端套有可活动的螺母（11），在衬芯（9）与软管（1）连接段的内壁镶嵌衬套（8），外壁设置有第一凹槽（12）以及两个鼓包（13），铝套（8）由两个鼓包（13）间形成的凹槽锁紧，软管（1）被压合在衬芯（9）和铝套（10）之间；在衬芯（9）的另一端设置有第二凹槽（14），在第二凹槽（14）内设置有密封圈（15）。衬芯（9）内壁镶嵌衬套（8），铝套（10）扣压后衬芯（9）不发生变形，衬芯（9）设置有密齿型凹槽，提高了软管组合件密封性能，铝套（10）设置在两个鼓包（13）之间，提高了组合件拉伸性能，衬芯（9）另一端的双槽密封形式，保证了软管组合件与其他设备相连的密封性能。

Description

一种汽车空调软管组合件及其制作方法 技术领域
本发明属于汽车空调***技术领域，具体涉及一种汽车空调软管组合件及其制作方法。
背景技术
目前，空调软管组合件的连接方式是使用涂胶工艺后进行扣压铆合，从而实现密封的效果。使用前，接头衬芯需要先涂覆一层胶水，不仅工序复杂，而且污染环境，威胁工作人员身体健康。在后续使用中，胶水容易失效，软管容易拉脱，软管组合件密封性能差。中国专利ZL201720956091.5公开了一种空调管总成连接结构，不需要使用涂胶工艺，通过扣压机扣压变形将三层结构软管压合在芯管上时，芯管容易发生变形，芯管与软管之间不能紧密贴合，密封性能较差，且三层结构软管渗透性能较差，不能满足标准SAE J2064-2015、SAE J3062-2015中制冷剂HFC-134a/HFO-1234yf渗透率小于1.5kg/m 2/year的要求。
此外，随着空调在现代汽车中的普遍使用，汽车空调软管的使用环境日益苛刻，对空调软管的拉伸性能、耐高低温性能、耐压性能、低渗透性能、NVH(Noise、Vibration、Harshness)性能提出了更高的要求。
发明内容
本发明的目的是提供一种汽车空调软管组合件，用于解决现有空调软管组合件密封性能差的问题，同时提高其拉伸性能、耐高低温性能、耐压性能、低渗透性能、NVH性能。
本发明的目的是通过以下技术方案实现的：
一种汽车空调软管组合件，该汽车空调软管组合件包括软管1和固定连接在软管两端的接头2；所述的接头2包括衬套8、衬芯9、铝套10和螺母11；所述的衬芯9的一端与软管1连接，另一端套有可活动的螺母11用于与其他设备相连，在衬芯9与软管1连接段的内壁镶嵌有衬套8，外壁设置有至少两个第一凹槽12以及两个鼓包13，所述的铝套10由两个鼓包间形成的凹槽锁紧，软管1被压合在衬芯9和铝套10之间；在所述的衬芯9的另一端设置有至少两个第二凹槽14，在第二凹槽14内设置有密封圈15。
所述的软管为五层结构，由内到外依次为内胶层3、阻隔层4、中胶层5、增强层6和外胶层7。
优选的，所述的内胶层3、中胶层5和外胶层7的材料均为三元乙丙橡胶组合物；所述的阻隔层4的材料为聚酰胺；所述的增强层6的材料为聚对苯二甲酸乙二酯、聚乙烯醇中的一种。所述的增强层6为编织结构层。
所述的三元乙丙橡胶组合物，包括如下重量份数的组分配制而成：
三元乙丙橡胶100份，快压出炭黑40～100份，滑石粉10～30份，石蜡油10～50份，古马隆树脂5～15份，氧化锌3～6份，硬脂酸1～2.5份，过氧化二异丙苯4～7份，三烯丙基异氰脲酸酯2～5份。其中，所述的三元乙丙橡胶中乙烯含量为45％～65％，第三单体乙叉降冰片烯含量为5.0％～7.0％。优选的，所述的三元乙丙橡胶由茂金属催化合成。
三元乙丙橡胶组合物以石蜡油和古马隆树脂两种并用为增塑体系，使该橡胶组合物的动静刚度比小，阻尼系数大，减振性能好；采用茂金属催化合成的三元乙丙橡胶，以过氧化二异丙苯和三烯丙基异氰脲酸酯为硫化体系，使该橡胶组合物的耐高低温性能优良；同时采用的滑石粉具有特殊的层状结构，可防止制冷剂的渗透，与阻隔层协同防止制冷剂的渗透。
所述的软管可以采用如下制作方法制得，包括：
步骤(1)、在芯棒上依次挤出内胶层、阻隔层和中胶层；
步骤(2)、通过编织机在中胶层上编织一层聚对苯二甲酸乙二酯纱线或聚乙烯醇纱线，得增强层；
步骤(3)、在增强层上挤出外胶层，得到管胚；
步骤(4)、将软管胚置于硫化罐中，以饱和蒸汽为传热介质，进行加热加压硫化，饱和蒸汽压为0.5～0.65MPa，硫化温度为145℃～165℃；
步骤(5)、取出芯棒，得到软管。
优选的，所述的衬芯9的材质为铝材，所述的衬套8的材质为镀锌钢材。
优选的，所述的第一凹槽12为圆弧形的凹槽；第一凹槽12深度为0.3～0.6mm，宽度为0.6～1.2mm；两个相邻第一凹槽的距离为2.0～2.8mm。
优选的，所述的第一凹槽12的数目为3～10个形成密齿型凹槽。
优选的，所述的第二凹槽14为圆弧形的凹槽，第二凹槽14深度为1.5～2.0mm，宽度为2.5～4mm；两个相邻第二凹槽的距离为4～6mm。
优选的，所述的第二凹槽14的数目为2个。
优选的，所述的两个鼓包13位于衬芯9中部的外表面。
优选的，所述的鼓包13为圆弧形的鼓包。
优选的，所述的螺母11内部设置有螺纹。
优选的，在衬芯9位于第二凹槽14内侧设有凸起；所述的螺母11可活动的套设在所述的凸起与外侧鼓包之间的衬芯9上。
本发明的另一个目的是提供一种汽车空调软管组合件的制作方法，包括：
步骤(1)、通过滚槽机在衬芯9与软管1连接段的外表面制作第一凹槽12，另一端外表面制作第二凹槽14；通过墩头机在衬芯9中部制作一个圆弧形的鼓包13；
步骤(2)、将螺母11套在衬芯9不与软管连接的一端；
步骤(3)、通过墩头机在衬芯9与软管1连接段的一端进行扩口，将衬套8镶嵌在衬芯内壁；通过墩头机在步骤(1)制得的鼓包内侧再制作一个圆弧形的鼓包13，同时将铝套10锁紧在两个鼓包之间；
步骤(4)、清理接头上面杂物和油污，将密封圈15装入第二凹槽14中；
步骤(5)、将软管1***衬芯9和铝套10之间，通过扣压机将铝套10扣压变形将软管1扣压在衬芯9上。
作为本发明汽车空调软管组合件的制作方法的另一种技术方案，也可以先将软管1***衬芯9和铝套10之间，通过扣压机将铝套10扣压变形将软管1扣压在衬芯9上，再将密封圈15装入第二凹槽14中。
本发明中“内侧”是指相对接近接头与软管连接端。
本发明的有益效果：
本发明的汽车空调软管组合件不使用涂胶工艺，密封性能良好，同时拉伸性能、耐高低温性能、耐压性能、低渗透性能、NVH性能优异。具体表现为：
本发明通过扣压机扣压变形将软管直接扣压在铝套和衬芯之间，不需要使用涂胶工艺，绿色环保。
本发明在与软管连接段的衬芯内壁镶嵌衬套，铝套扣压后衬芯不发生变形，且衬芯上面设置有密齿型凹槽，确保软管组合件获得优异的密封性能；铝套设置在两个鼓包之间，并与软管压合，提高了组合件的拉伸性能；衬芯另一端设计成双槽密封形式，保证了软管组合件与其他设备相连的密封性能，并通过螺母与其他设备实现螺纹连接，进一步提高密封性能。
本发明汽车空调软管组合件采用五层结构的软管，内胶层、中胶层和外胶层的材料均为三元乙丙橡胶组合物，该橡胶组合物的动静刚度比小，阻尼系数大，减振性能好，因此软管NVH性能优异，且三元乙丙橡胶耐高低温性能优良，显著提高软管耐高低温性能；阻隔层材料为聚酰胺，有效防止了制冷剂HFC-134a/HFO-1234yf的渗透，对于制冷剂HFC-134a，本发明软管的渗透率低至0.81kg/m 2/year，对于制冷剂HFO-1234yf，渗透率低至0.29kg/m 2/year；增强层材料为聚对苯二甲酸乙二酯、聚乙烯醇中的一种，软管耐压性能优良。
附图说明
图1为本发明汽车空调软管组合件的结构示意图；
图2为本发明汽车空调软管组合件的软管的结构图示意图；
图3为本发明汽车空调软管组合件的接头的半剖图；
图4为本发明汽车空调软管组合件的衬芯的半剖图。
图中，1-软管；2-接头；3-内层胶；4-阻隔层；5-中胶层；6-增强层；7-外胶层；8-衬套；9-衬芯；10-铝套；11-螺母；12-第一凹槽；13-鼓包；14-第二凹槽；15-密封圈。
具体实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
实施例1
如图1-图4所示，一种汽车空调软管组合件，包括软管1和固定连接在软管两端的接头2；所述的软管1由内到外依次为内胶层3、阻隔层4、中胶层5、增强层6和外胶层7；所述的接头包括衬套8、衬芯9、铝套10、螺母11；所述的衬芯9的一端与软管1连接，另一端套有可活动的螺母11用于与其他设备相连，在衬芯9与软管1连接段的内壁镶嵌有衬套8，外壁设置有8个圆弧形的第一凹槽12形成密齿形凹槽，在衬芯9中部设置有两个鼓包13，所述的铝套10的一端由两个鼓包间形成的凹槽锁紧，软管1被压合在衬芯9和铝套10之间；在所述的衬芯9的另一端设置有2个圆弧形的第二凹槽14，在第二凹槽14内设置有密封圈15。
所述的第一凹槽12深度(深度指凹槽在竖直方向最大值)为0.4mm，宽度(指凹槽在水平方向最大值)为1mm，两个相邻第一凹槽的距离为2.5mm；所述的第二凹槽14深度为1.8mm，宽度为3mm，两个相邻第二凹槽的距离为5mm；密封圈15外径稍小于第二凹槽的直径。
具体的，在所述的衬芯9位于第二凹槽14内侧设有凸起；所述的螺母11可活动的套设在所述的凸起与左侧鼓包13之间的衬芯9上。并在所述的螺母11内部设置有螺纹用于和其他设备实现螺纹连接。
所述的内胶层3、中胶层5和外胶层7的材料均为三元乙丙橡胶组合物，所述的三元乙丙橡胶组合物由如下重量份数的组分配制而成：三元乙丙橡胶100份，快压出炭黑70份，滑石粉20份，石蜡油(牌号为SUNPAR 2280)20份，古马隆树脂8份，氧化锌4份，硬脂酸2份，过氧化二异丙苯6份，三烯丙基异氰脲酸酯3份；其中，所述的三元乙丙橡胶由茂金属催化合成，乙烯含量为45％～65％，第三单体乙叉降冰片烯含量为5.0％～7.0％。 该橡胶组合物的动静刚度比小，阻尼系数大，减振性能好，因此软管NVH性能优异，且三元乙丙橡胶耐高低温性能优良，因此软管耐高低温性能大大提高。所述的阻隔层4的材料为聚酰胺，有效防止了制冷剂HFC-134a/HFO-1234yf的渗透；所述的增强层6材料为聚对苯二甲酸乙二酯，软管耐压性能优良。
本实施例汽车空调管组合件的制作方法，包括：
步骤(1)、通过滚槽机在衬芯9与软管1连接段的外表面制作第一凹槽12，另一端外表面制作第二凹槽14；通过墩头机在衬芯9中部制作一个圆弧形的鼓包13；
步骤(2)、将螺母11套在衬芯9不与软管连接的一端；
步骤(3)、通过墩头机在衬芯9与软管1连接段的一端进行扩口，将衬套8镶嵌在衬芯内壁；通过墩头机在步骤(1)制得的鼓包外侧再制作一个圆弧形的鼓包13，同时将铝套10锁紧在两个鼓包之间；
步骤(4)、清理接头上面杂物和油污，将密封圈15装入第二凹槽14中；
步骤(5)、将软管1***衬芯9和铝套10之间，通过扣压机将铝套10扣压变形将软管1扣压在衬芯9上。
表1 实施例1汽车空调软管组合件的性能检测结果
Figure PCTCN2019086621-appb-000001
从表1可以看出，本实施例汽车空调软管组合件的拉伸性能、耐高低温性能、耐压性能、 耐脉冲疲劳性能、低渗透性能优异。对于制冷剂HFC-134a，渗透率低至0.81kg/m 2/year，对于制冷剂HFO-1234yf，渗透率低至0.29kg/m 2/year。此外，软管内胶层、中胶层、外胶层的橡胶组合物动静刚度比小，阻尼系数大，减振性能好，因此软管NVH性能优异。
本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种汽车空调软管组合件，其特征在于该汽车空调软管组合件包括软管(1)和固定连接在软管两端的接头(2)；所述的接头(2)包括衬套(8)、衬芯(9)、铝套(10)和螺母(11)；所述的衬芯(9)的一端与软管(1)连接，另一端套有可活动的螺母(11)；在衬芯(9)与软管(1)连接段的内壁镶嵌有衬套(8)，外壁设置有至少两个第一凹槽(12)以及两个鼓包(13)，所述的铝套(10)由两个鼓包间形成的凹槽锁紧，软管(1)被压合在衬芯(9)和铝套(10)之间；在所述的衬芯(9)的另一端设置有至少两个第二凹槽(14)，在第二凹槽(14)内设置有密封圈(15)。
  2. 如权利要求1所述的汽车空调软管组合件，其特征在于所述的软管(1)由内到外依次为内胶层(3)、阻隔层(4)、中胶层(5)、增强层(6)和外胶层(7)。
  3. 如权利要求2所述的汽车空调软管组合件，其特征在于所述的内胶层(3)、中胶层(5)和外胶层(7)的材料均为三元乙丙橡胶组合物；所述的阻隔层(4)的材料为聚酰胺；所述的增强层(6)的材料为聚对苯二甲酸乙二酯、聚乙烯醇中的一种。
  4. 如权利要求3所述的汽车空调软管组合件，其特征在于所述的三元乙丙橡胶组合物，包括如下重量份数的组分配制而成：三元乙丙橡胶100份，快压出炭黑40～100份，滑石粉10～30份，石蜡油10～50份，古马隆树脂5～15份，氧化锌3～6份，硬脂酸1～2.5份，过氧化二异丙苯4～7份，三烯丙基异氰脲酸酯2～5份；其中，所述的三元乙丙橡胶中乙烯含量为45％～65％，第三单体乙叉降冰片烯含量为5.0％～7.0％。
  5. 如权利要求1所述的汽车空调软管组合件，其特征在于所述的第一凹槽(12)为圆弧形的凹槽，第一凹槽(12)深度为0.3～0.6mm，宽度为0.6～1.2mm，两个相邻第一凹槽的距离为2.0～2.8mm；所述的第二凹槽(14)为圆弧形的凹槽。
  6. 如权利要求1或5所述的汽车空调软管组合件，其特征在于所述的第一凹槽(12)的数目为3～10个以形成密齿型凹槽；所述的第二凹槽(14)的数目为2个。
  7. 如权利要求1所述的汽车空调软管组合件，其特征在于所述的两个鼓包(13)位于衬芯(9)中部的外表面。
  8. 如权利要求1或7所述的汽车空调软管组合件，其特征在于所述的鼓包(13)为圆弧形的鼓包。
  9. 如权利要求1所述的汽车空调软管组合件，其特征在于所述的螺母(11)内部设置有螺纹。
  10. 权利要求1所述的汽车空调软管组合件的制作方法，其特征在于包括：
    步骤(1)、通过滚槽机在衬芯与软管连接段的外表面制作第一凹槽，另一端外表面制作第二凹槽；通过墩头机在衬芯中部制作一个圆弧形的鼓包；
    步骤(2)、将螺母套在衬芯不与软管连接的一端；
    步骤(3)、通过墩头机在衬芯与软管连接段的一端进行扩口，将衬套镶嵌在衬芯内壁；通过墩头机在步骤(1)制得的鼓包内侧再制作一个圆弧形的鼓包，同时将铝套锁紧在两个鼓包之间；
    步骤(4)、清理接头上面杂物和油污，将密封圈装入第二凹槽中；
    步骤(5)、将软管***衬芯和铝套之间，通过扣压机将铝套扣压变形将软管扣压在衬芯上。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014095468A (ja) * 2012-10-12 2014-05-22 Denso Corp 管継手
CN104048127A (zh) * 2013-03-11 2014-09-17 汉拿伟世通空调有限公司 具有反向倒钩的压接接头
CN205479867U (zh) * 2016-02-02 2016-08-17 玉环县金龙欧浴洁具有限公司 一种软管
CN205824400U (zh) * 2016-04-19 2016-12-21 天津鹏翎胶管股份有限公司 一种新型低渗透空调胶管
CN106662278A (zh) * 2014-06-30 2017-05-10 株式会社普利司通 带接头软管
CN109296857A (zh) * 2018-10-11 2019-02-01 南京利德东方橡塑科技有限公司 一种汽车空调软管组合件及其制作方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014095468A (ja) * 2012-10-12 2014-05-22 Denso Corp 管継手
CN104048127A (zh) * 2013-03-11 2014-09-17 汉拿伟世通空调有限公司 具有反向倒钩的压接接头
CN106662278A (zh) * 2014-06-30 2017-05-10 株式会社普利司通 带接头软管
CN205479867U (zh) * 2016-02-02 2016-08-17 玉环县金龙欧浴洁具有限公司 一种软管
CN205824400U (zh) * 2016-04-19 2016-12-21 天津鹏翎胶管股份有限公司 一种新型低渗透空调胶管
CN109296857A (zh) * 2018-10-11 2019-02-01 南京利德东方橡塑科技有限公司 一种汽车空调软管组合件及其制作方法

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