Automobile air conditioner rotary vane compressor preventing stop reverse rotation and leakage

Abstract

An automobile air conditioner rotary vane compressor preventing stop reverse rotation and leakage comprises a front end cover (1) and a shell (2). The front end cover is provided with an air inlet (4). The automobile air conditioner rotary vane compressor is characterized in that a check valve (5) is installed in the air inlet; the check valve comprises a plug (501), a valve piece (502), a spring (503) and a casing (504); the plug is in interference fit with the inner wall of the air inlet; the upper end of the casing is also in interference fit with the inner wall of the air inlet so as to prevent the condition that during use, airflow pulsation is caused by the fact that the casing rotates in the air inlet; the upper end of the casing is provided with a notch through which the plug can be pressed in conveniently and the upper end of the casing can be in interference fit with the inner wall of the air inlet; the circumferential wall of the casing is provided with air inflow openings; the lower end of the valve piece abuts against one end of the spring; an upper end seal cone of the valve piece abuts against the seal face of the plug; the other end of the spring abuts against the inner bottom of the casing; and an annular convex shoulder is sleeved with a coil axial limiting pressing plate. The automobile air conditioner rotary vane compressor is convenient to install and good in noise reduction effect.

Description

technical field [0001] The invention relates to a car air-conditioning compressor, in particular to a rotary vane car compressor, in particular to a car air-conditioning rotary vane compressor which is anti-stop and reverse. Background technique [0002] After the rotary vane compressor stops, due to its structural characteristics, the compressed gas of the core will expand towards the low-pressure area, causing the core and the clutch drive plate to reverse, and when the rotary vane compressor is started again, the end face of the clutch will be severely worn, which will affect the service life. , in order to prevent this kind of reversal from causing the life of the clutch to decrease, it is generally used to install a check valve in the air intake chamber (located on the front cover) connected to the low-pressure chamber, so that the gas in the low-pressure chamber cannot Entering the suction channel, the pressure in the low-pressure chamber rises rapidly and is in a bala...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to design a rotary vane for automobile air conditioner that prevents the reverse rotation and leakage of the shutdown in order to solve the problem that the existing intake check valve of the rotary vane compressor is difficult to assemble and easy to leak due to its unreasonable structure. type compressor

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