Scroll compressor, seal thereof, and method of manufacturing the seal

Abstract

A seal, a scroll compressor, and a method of making a seal for a scroll compressor are provided. The scroll compressor may include: a casing in which a rotation shaft is disposed; a discharge cover fixed to the inside of the casing to partition the inside of the casing into a suction space and a discharge space; a first scroll rotated by rotation of the rotation shaft; a scroll provided on the first scroll to define a plurality of compression chambers together with the first scroll, and having an intermediate pressure discharge hole communicating with a compression chamber having an intermediate pressure among the plurality of compression chambers; a back pressure plate provided on the second On the second scroll, there is an intermediate pressure suction hole communicated with the intermediate pressure discharge hole; a floating plate is movably arranged on one side of the back pressure plate to define a back pressure chamber together with the back pressure plate; and a seal is arranged on the surface of the back pressure plate and the surface of the floating plate to prevent refrigerant from leaking from the back pressure chamber. The sealing element may include: a sealing body; and at least one protrusion arranged to be inclined relative to a central line extending along a horizontal direction of the sealing body.

Description

technical field [0001] A seal, a scroll compressor, and a method of manufacturing a seal for a scroll compressor are disclosed herein. Background technique [0002] A scroll compressor is a compressor that utilizes a fixed scroll having a spiral wrap and an orbiting scroll that rotates relative to the fixed scroll. That is, a scroll compressor is a compressor in which a fixed scroll and an orbiting scroll are engaged with each other to rotate, thereby reducing the volume of a compression chamber that is compressed according to the orbit of the orbiting scroll. The motion is formed between the fixed scroll and the orbiting scroll, and thus pressure is increased and the fluid is discharged through a discharge hole formed at a central portion of the fixed scroll. [0003] Such a scroll compressor has a feature that suction, compression, and discharge of fluid are continuously performed while orbiting a scroll. Therefore, discharge valves and suction valves are not required in...

AI Technical Summary

Problems solved by technology

However, leaks may conflict with lubrication

That is, when the ends of the scroll and the surface of the end plate are securely attached to each other, it may be beneficial for leakage, but friction may increase, increasing damage from noise and wear

On the other hand, when the adhesion strength is low, the friction can be reduced, but the sealing force will be reduced and the leakage will increase

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