A variable displacement swash plate compressor

Abstract

The patent of the present invention provides a variable displacement swash plate compressor, which includes a cylinder body connected with a back cover through a valve plate assembly, and a suction chamber and an exhaust chamber are arranged in the middle of the back cover. There is a circular partition rib in the middle of the air chamber and the exhaust chamber, a sound-absorbing cavity is provided in the middle of the exhaust chamber, and a one-way valve is provided between the circular partition rib and the sound-absorbing chamber; the suction of the cylinder body The end surface of the bottom of the mouth is a drag reducing surface arranged obliquely. A muffler cavity and a one-way valve are set in the exhaust chamber of the rear cover, so that when the high-pressure air flows through the inner and outer sides of the rear cover, the flow of the gas is more stable, and the backflow phenomenon will not be caused, reducing the noise of the air flow; The bottom end surface of the suction port is provided with an inclined drag-reducing surface. When the gas enters the suction port, it passes through the drag-reducing surface to make the airflow in different directions tend to be consistent, guide the airflow in a direction, reduce the resistance of the airflow, and thereby reduce the Reduce power consumption and improve the energy efficiency of the compressor.

Description

technical field [0001] The invention relates to an automobile air-conditioning compressor, in particular to a variable-displacement swash plate compressor. Background technique [0002] In the refrigeration system of the automobile air conditioner, the variable displacement swash plate compressor controls the change of the displacement through the change of the angle of the swash plate during the working process. Therefore, the variable-displacement swash-plate compressor has high requirements on the pressure change of the air-conditioning and refrigeration system, the resistance of the gas flow, and the direction control during the working process. If the control is not good, it will cause the pulsation of the air flow, which will affect the operation of the compressor. noise and vibration etc. [0003] Such as figure 1 , figure 2 As shown, the suction chamber of the traditional variable displacement swash plate compressor cylinder 1 is a square suction chamber 1-1, and...

AI Technical Summary

Problems solved by technology

Therefore, the variable-displacement swash-plate compressor has high requirements on the pressure change of the air-conditioning and refrigeration system, the resistance of the gas flow and the direction control during the working process. If the control is not good, the pulsation of the air flow will be caused, which will affect the operation of the compressor. noise and vibration

[0003] like figure 1 , figure 2 As shown, the suction chamber of the traditional variable displacement swash plate compressor cylinder 1 is a square suction chamber 1-1, and the resistance of the gas flow during the operation of the compressor is relatively large, which will increase the power consumption of the compressor reduce its efficiency

And the direction of the gas changes after being resisted, resulting in increased noise and vibration of the compressor, which affects its comfort and life

In addition, the suction and exhaust chambers of the rear cover 7 are separated by the quincunx-shaped partition profile 7-1, which results in longer sealing lengths and increases the risk of leakage

The quincunx-shaped separation contour 7-1 determines that the exhaust valve plate limit plate can only be made of metal structure. When the compressor is working, the metal surface slaps on the metal surface, which increases the noise of the compressor and reduces the life of the compressor.

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