The invention relates to the field of automobile air conditioners, in particular to a coaxial pipe structure of a casing pipe type automobile air conditioner pipeline. The coaxial pipe structure comprises a coaxial outer pipe, a coaxial inner pipe and a three-way sleeve, wherein the coaxial inner pipe is sleeved with the coaxial outer pipe, the three-way sleeve is fixed to the end of the coaxial outer pipe, the three-way sleeve comprises a front port, a rear port and a side port, the inner diameter of the front port is matched with the outer diameter of the coaxial inner pipe, the rear port is fixedly connected and communicated with the coaxial outer pipe, and the side port is externally communicated with a branch pipe. The inner pipe and the outer pipe are fixed in the mode that the inner teeth form a heat conduction flow channel, and the heat exchange rate of the coaxial pipe structure is effectively improved; and various different branch pipe and outer pipe connecting modes are adopted, the branch pipe is effectively prevented from falling off, and meanwhile, welding holes are effectively prevented from being blocked.
本发明涉及汽车空调领域,尤其涉及一种套管式汽车空调管路同轴管结构,包括同轴外管、同轴内管以及三通套管,所述同轴外管套于所述同轴内管外,所述三通套管固定于所述同轴外管端部,所述三通套管包括前端口、后端口以及侧边端口,所述前端口内径与所述同轴内管的外径相配合,所述后端口与所述同轴外管固定连接并相通,所述侧边端口外连通有支管。本发明采用内齿形成导热流道的方式固定内管与外管,有效地提高了本发明的热交换率;本发明采用多种不同的支管与外管的连接方式,有效防止支管的脱落,同时也有效防止了焊孔堵塞。
Coaxial pipe structure of casing pipe type automobile air conditioner pipeline
套管式汽车空调管路同轴管结构
2021-06-01
Patent
Electronic Resource
Chinese
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |
European Patent Office | 2021
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