The invention relates to an expansion valve, a heat pump and a vehicle. According to the expansion valve, an inner space, a first channel and a second channel are formed in a valve body assembly, and the first channel communicates with the inner space; the guide sleeve is movably arranged in the inner space, a first cavity and a second cavity which are communicated are formed, and the guide sleeve is in guide fit with the valve body assembly in the moving direction; the plug comprises a first limiting part and an adjusting part, the first limiting part is movably arranged in the first cavity, and the adjusting part extends out of the second cavity; the screw rod is in threaded fit with the valve body assembly and connected with the guide sleeve, so that the screw rod can rotate in the axial direction of the screw rod and drive the guide sleeve to move along the axis of the screw rod relative to the valve body assembly; and at least part of the elastic piece is arranged in the second cavity and pushes the plug. According to the expansion valve, the screw rod connected with the guide sleeve is arranged, so that rotation of the screw rod can be transmitted to the plug, the influence of thread fit of the screw rod on the position of the plug is reduced while flow control is achieved, and therefore the sealing performance of the expansion valve is improved.

    本申请涉及一种膨胀阀、热泵及车辆。该膨胀阀包括:阀体组件形成有内部空间、第一通道以及第二通道,第一通道与内部空间连通;导向套活动设置于内部空间内,形成有连通的第一腔和第二腔,导向套沿活动方向与阀体组件导向配合;堵头包括第一限位部和调节部,第一限位部活动设置于第一腔内,调节部伸出第二腔;螺杆与阀体组件螺纹配合,螺杆与导向套连接,使得螺杆能够沿螺杆的轴向转动并带动导向套相对于阀体组件沿螺杆的轴线活动;弹性件,至少部分设置于第二腔内并抵推堵头。本申请膨胀阀通过设置与导向套相连的螺杆,使得螺杆的转动可传递至堵头,并实现流量控制的同时,减小螺杆的螺纹配合对堵头的位置的影响,从而提升膨胀阀的密封性能。


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    Title :

    Expansion valve, heat pump and vehicle


    Additional title:

    膨胀阀、热泵及车辆


    Contributors:
    LU YINBO (author) / HUANG XIYIN (author) / TAN CHAOZHI (author) / XU YONGZHAO (author)

    Publication date :

    2024-10-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / 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




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