A warm air flow control mechanism, a vehicle-mounted air-conditioning system, and a vehicle

Abstract

The invention discloses a warm air flow control mechanism, which includes a warm water valve. A valve core that can rotate in the circumferential direction is arranged inside the warm water valve. and during the rotation of the valve core, the sum of the effective water outlet cross-sectional areas of each of the water outlets remains constant. In the warm air flow control mechanism disclosed in the present invention, when the valve core rotates, the effective water outlet cross-sectional area of ​​each water outlet changes continuously, but the sum always remains unchanged, so the water inlet cross-sectional area and the water outlet cross-sectional area always maintain the original ratio. That is, the total inflow flow per unit time is equal to the total outflow flow. In this way, during the rotation of the spool, the flow rate of each water outlet is directly proportional to the effective water outlet cross-sectional area, and there is a linear relationship between the two, so that the precise temperature of the warm air can be achieved through the linear control of the flow rate of each water outlet. control. The invention also discloses a vehicle-mounted air-conditioning system and a vehicle, the beneficial effects of which are as described above.

Description

technical field [0001] The invention relates to the technical fields of vehicle engineering and air conditioning, in particular to a warm air flow control mechanism. The invention also relates to a vehicle air conditioning system and a vehicle. Background technique [0002] With the development of China's machinery industry, more and more machinery and equipment have been widely used. [0003] As the pillar of the machinery industry, the automobile industry has achieved many research results. Since the development of automobiles, multiple systems with different functions have been integrated on its body, including fuel supply systems, starting systems, cooling systems, lubrication systems, and ignition systems. In terms of electronic control, the vehicle air conditioning system is now also a very important part. [0004] The function of the vehicle air conditioning system has several aspects, mainly including using the heat generated by the engine for heating the cabin, a...

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Problems solved by technology

[0005] However, during the rotation of the spool of the cut-off water valve, when the valve opening becomes larger or smaller, the pressure at the inlet port (that is, the hot water port of the engine) will change accordingly, which causes the stress change of the heating water flow , which is not conducive to the precise control of the warm air temperature

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