CN107304866A - 一种接管结构及其空调换向阀 - Google Patents
一种接管结构及其空调换向阀 Download PDFInfo
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- CN107304866A CN107304866A CN201610264961.2A CN201610264961A CN107304866A CN 107304866 A CN107304866 A CN 107304866A CN 201610264961 A CN201610264961 A CN 201610264961A CN 107304866 A CN107304866 A CN 107304866A
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- pipe
- copper
- steel pipe
- copper pipe
- steel
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 84
- 229910052802 copper Inorganic materials 0.000 claims abstract description 84
- 239000010949 copper Substances 0.000 claims abstract description 84
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 78
- 239000010959 steel Substances 0.000 claims abstract description 78
- 238000003466 welding Methods 0.000 claims abstract description 53
- 238000002844 melting Methods 0.000 claims abstract description 28
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005057 refrigeration Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000002441 reversible Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000005219 brazing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials 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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
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Abstract
本发明公开了一种接管结构及其空调换向阀，属于制冷技术领域，解决了现有空调换向阀接管成本高以及两次焊接温度接近而影响第一次焊接质量的问题，本发明的接管结构包括钢管和铜管，所述铜管套装在所述钢管上，所述铜管与钢管通过部分铜管熔融进行焊接固定，或者铜管与钢管通过部分铜管和钢管的熔融进行焊接固定。本发明实施例应用于空调系统的四通换向阀、三通换向阀等。
Description
一种接管结构及其空调换向阀 【技术领域】
[0001 ]本发明涉及制冷技术领域，尤其涉及一种接管结构及其空调换向阀。 【背景技术】
[0002]空调换向阀是中央空调、分体空调和窗式空调等空调系统中的重要器件，利用换 向阀来改变制冷剂的流动通道，改变制冷剂流向，转换冬夏两季空调系统室内机和室外机 的功用。换向阀主要包括主阀和先导控制阀，在主阀上设有用于连接先导控制阀和系统其 他管路的接管，目前的接管普遍采用铜管，铜材本身具有良好的防锈防腐蚀性能，适用于对 防锈防腐蚀性能要求较高的空调等产品上，但其价格相比其他金属管件要高很多，增加了 换向阀的生产成本，因此必要对接管结构进行优化，以降低接管成本，从而进一步降低换向 阀的生产成本。 【发明内容】
[00031本发明所要解决的技术问题在于克服现有技术的不足而提供一种空调换向阀接 管，降低接管成本。
[0004]解决上述技术问题，本发明采用如下技术方案：
[0005] —种接管结构，所述接管包括钢管和铜管，所述铜管套装在所述钢管上，所述铜管 与钢管通过部分铜管熔融进行焊接固定，或者铜管与钢管通过部分铜管和钢管的熔融进行 焊接固定。
[00061进一步的方案，所述铜管部分套装在所述钢管外部，所述铜管套装钢管的一端与 钢管进行熔焊。
[0007]更进一步的方案，所述铜管包括小径部和大径部，所述小径部套装在所述钢管外。 [0008]进一步的方案，所述铜管插装到所述钢管内部，所述钢管端部与铜管进行熔焊。
[0009]更进一步的方案，所述钢管包括直管段和直径大于直管段的扩口段，所述铜管插 装到扩口段内。
[0010]更进一步的方案，所述铜管一端向外翻边形成定位凸台，所述定位凸台与钢管端 部相抵并进行熔焊。
[0011]进一步的方案，所述铜管与钢管熔焊时采用氩弧焊接或激光焊接。
[0012]本发明还提出一种空调换向阀，包括上述任一技术方案所述的接管结构 [0013]本发明的有益效果： < °
[0014]本发明的接管结构，包括钢管和铜管，钢管固定在空调换向阀上，铜管套装在钢管 上并与钢管熔焊固定，这样设计的好处在于，用钢管代替了现有的部分铜接管，钢材价格相 对低廉，可降低了接管的材料成本，从而能进一步降低换向阀的生产成本;接管的端*P仍采 用铜管，保证接管与其他管路的连接可靠性，兼顾了接管的成本和使用性能。 H
[0015]目前空调厂家在将接管和铜套进行钎焊，钎焊温度在800 °c左右，在铜套与系统连 接官进行连接时，也3k用钎接，两次钎焊焊接温度接近，影响第一次焊接的焊缝^量。 而本发明的方案解决了两次焊接温度接近而影响第一次焊接质量的问题，本发明的方案采 用钢管和铜管熔焊的方式，对于空调厂家后续采用钎焊焊接系统接管时，钎焊温度在80(TC 左右，不影响第一次熔焊的焊缝。
[0016]本发明的这些特点和优点将会在下面的具体实施方式、附图中详细的揭露。 【附图说明】
[0017] 下面结合附图对本发明做进一步的说明：
[0018] 图1为本发明实施例一中空调换向阀的结构示意图；
[0019] 图2为图1的A处局部放大图；
[0020]图3为本发明实施例二中空调换向阀的结构示意图；
[0021] 图4为图3的B处局部放大图；
[0022]图5为本发明实施例三中空调换向阀的结构示意图；
[0023] 图6为图5的C处局部放大图；
[0024]图7为本发明实施例四中空调换向阀的结构示意图；
[0025]图8为图7的D处局部放大图。 【具体实施方式】
[0026]下面结合本发明实施例的附图对本发明实施例的技术方案进行解释和说明，但下 述实施例仅为本发明的优选实施例，并非全部。基于实施方式中的实施例，本领域技术人员 在没有做出创造性劳动的前提下所获得其他实施例，都属于本发明的保护范围。
[0027] 实施例一
[0028]参照图1、2,本发明实施例一提出的接管结构，包括钢管3和铜管4,钢管3固定在空 调换向阀上，铜管4套装在所述钢管3上并与钢管3熔焊固定。这样设计的好处在于，用钢管3 代替了现有的部分铜接管，钢材价格相对低廉，可降低了接管的材料成本，从而能进一步降 低换向阀的生产成本;接管的端部仍采用铜管4,保证接管与其他管路的连接可靠性，兼顾 了接管的成本和使用性能。更重要的是：目前空调厂家在将接管和铜套进行钎焊，钎焊温度 在800°C左右，在铜套与系统连接管进行连接时，也采用钎焊焊接，两次钎焊焊接温度接近， 影响第一次焊接的焊缝质量。而本发明的方案解决了两次焊接温度接近而影响第一次焊接 质量的问题，本发明的方案采用钢管和铜管熔焊的方式，对于空调厂家后续采用钎焊焊接 系统接管时，钎焊温度在800°C左右，不影响第一次熔焊的焊缝。
[0029] 本实施例的铜管4部分套装在钢管3外，铜管4套装钢管3的一端与钢管3进行焊接， 具体而言，铜管4和钢管3为等径结构，即在管体轴向方向上管体横截面积均相等，焊接前， 先将铜管4一端套装在钢管3外，铜管4内壁和钢管3外壁间隙配合或者过盈配合，焊接时，将 铜管4下端与钢管3进行焊接。
[0030] 在进行焊接时，可以采用但不限于如下焊接方案：
[0031] U单管熔焊，所谓熔焊是指焊接过程中，将两个工件连接处通过高温作用加热至 其中个工件熔化或者两个工件熔化的状态而完成的焊接方法，可形成牢固的焊接接头； ^于被焊工件是紧密贴在一起的，在温度场、重力等的作用下，不加压力，两个工件恪化的 融液会发生混合现象，待温度降低后，熔化部分凝结，两个工件就被牢固的焊在一起。应用 到本实施例中，将焊接温度控制在l〇S3°C左右，该温度为铜的熔点温度，故而在进行焊接 时，仅将铜管4的端部熔化，铜管4的熔融材料凝结后将铜管4和钢管3焊接在一起。
[0032] 2、双管熔焊，将焊接温度控制在1500°C左右，该温度为钢的熔点温度，故而在进行 焊接时，铜管4端部及其对应的钢管3部位都能熔化，铜管4和钢管3的熔化材料混合凝结后， 将铜管4和钢管3焊接在一起。
[0033]采用熔焊工艺，操作简便，由于铜管4和钢管3之间的焊接不需要焊料，纯粹为物理 连接，环保性好，同时操作简便，极大的降低了劳动强度，免除了焊接后续工艺，大大降低了 加工成本，并且管件连接后表面及焊缝无化学残留物，使用安全。实际操作时，可以采用氩 弧焊或激光焊来实现。
[0034]可以理解:在本发明的其他本实施例中，铜管和钢管的连接也可以采用现有的其 他熔焊方式来实现，比如在铜管和钢管接合处使用焊料，焊料熔融凝结后将二者焊接固定。 t〇〇35]实施例二
[0036]参照图3、4,本实施例与实施例一大致相同，不同之处在于，铜管4结构有所改变， 本实施例的铜管4包括小径部42和大径部41，连接时，将小径部42套装在钢管3外并进行焊 接，具体焊接工艺可参考实施例一。
[0037]根据本实施例所述方案，本领域技术人员也可以想到，将铜管的大径部套装在钢 管外并进行熔焊。
[0038] 实施例三
[0039]参照图5、6，本实施例的空调换向阀接管，包括钢管3和铜管4，铜管4插装到钢管3 内，钢管3端部与铜管4进行熔焊，具体而言，本实施例的钢管3包括直管段31和直径大于直 管段31的扩口段32，焊接前，将铜管4插装到扩口段32内，铜管4下端抵靠在扩口段32与直管 段31的过度部位，从而起到限位作为，限制铜管4插入钢管3的深度，以便于焊接。在焊接时， 将铜管4上端与钢管3上端焊接固定，铜管4长度与扩口段32长度一致，铜管4上端面与钢管3 上端面基本保持在同一高度，产品外形美观。具体焊接工艺可参考实施例一。
[0040] 实施例四
[0041]参照图7、8,本实施例在实施例三基础上进行改进，铜管4 一端向外翻边形成定位 凸台41，铜管4插入钢管3的扩口段32后，定位凸台41与钢管3扩口段32的端部相抵，限制铜 管4插入钢管3的深度。在焊接时，将定位凸台41与钢管3扩口段32的端部焊接在一起。具体 焊接工艺可参考实施例一。可以理解:在其他实施例中，钢管也可以不设置扩口段，铜管插 入钢管后，依靠定位凸台限制铜管插入钢管的深度。
[0 04 2 ]参照图1，本发明所述的空调换向阀，包括主阀1和先导控制阀2，在主阀1上设有用 于连接先导控制阀2和系统其他管路的接管，包括设置主阀1 一侧的D接管和并列设在主阀1 另一侧的E接管、S接管、C接管，空调换向阀的工作原理属现有公知技术，本发明实施例中不 在进行详述，最优的方案是D接管、E接管、S接管和C接管均采用上述任一实施例所述的接管 结构，其次优的方案可以是部分接管采用上述任一实施例所述的接管结构，其余接管仍采 用现有的常规铜接管。
[0043]本发明实施例应用于空调系统的四通换向阀、三通换向阀等。
[0044]以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，熟悉 该本领域的技术人员应该明白本发明包括但不限于附图和上面具体实施方式中描述的内 容。任何不偏离本发明的功能和结构原理的修改都将包括在权利要求书的范围中。
Claims (8)
1. 一种接管结构，其特征在于，所述接管包括钢管和铜管，所述铜管套装在所述钢管 上，所述铜管与钢官通过部分铜管恪融进行焊接固定，或者铜管与钢管通过部分铜管和钢 管的熔融进行焊接固定。
2. 如权利要求1所述的接管结构，其特征在于，所述铜管部分套装在所述钢管外部所 述铜管套装钢管的一端与钢管进行熔焊。 ’
3.如权利要求2所述的接管结构，其特征在于，所述铜管包括小径部和大径部所述小 径部套装在所述钢管外。 ^
4. 如权利要求1所述的接管结构，其特征在于，所述铜管插装到所述钢管内部，所述钢 管端部与铜管进行熔焊。
5. 如权利要求4所述的接管结构，其特征在于，所述钢管包括直管段和直径大于直管段 的扩口段，所述铜管插装到扩口段内。
6.如权利要求4所述的接管结构，其特征在于，所述铜管一端向外翻边形成定位凸台， 所述定位凸台与钢管端部相抵并进行熔焊。 ’
7. 如权利要求1所述的接管结构，其特征在于，所述铜管与钢管恪焊时采用氩弧焊接或 激光焊接。
8. —种空调换向阀，其特征在于，包括权利要求1至8之一所述的接管结构。
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| US20110220237A1 (en) * | 2010-03-15 | 2011-09-15 | Hiroki Okamoto | Bimetallic tube |
| CN104806824A (zh) * | 2015-04-24 | 2015-07-29 | 施勇波 | 新型铜和钢复合管、制造方法及应用 |
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