Air suction valve sheet structure for refrigeration compressor

Abstract

The invention discloses an air suction valve sheet structure for a refrigeration compressor. The structure comprises a valve sheet body, an external reed, an exhaust hole, an installation hole, a throttle hole and an internal reed, wherein the external reed has a two-arm reed structure; the internal reed is arranged on the inner side of the external reed; and the exhaust hole is formed on the internal reed. In the air suction valve sheet structure for the refrigeration compressor, the maximum width size of a sealing area of the larger external reed can be selected on the premise of not increasing motion energy consumption so as to improve the effective circulation area of an air suction valve and contribute to improving the efficiency of the compressor.

Description

technical field [0001] The invention relates to a suction valve plate structure of a refrigeration compressor. Background technique [0002] The structure of the suction valve plate of the existing refrigeration compressor is as follows: figure 1 As shown, a reed 1, an exhaust hole 2, a mounting hole 3 and a throttle hole 4 are provided. The reed 1 adopts a single-arm reed structure and has the functions of sealing and bending movement. The maximum width dimension of the sealing area is D, and the minimum width dimension of the bending area is d. Such as figure 1 For the structure of the suction valve plate shown, increasing the dimension D is beneficial to increase the effective flow area of ​​the suction valve, thereby improving the suction efficiency; while the size range of the size d that can be selected is small, because the size d is too small will cause the reed 1 Reliability problems during bending movement, and too large dimension d will lead to an increase in e...

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Problems solved by technology

like figure 1 For the structure of the suction valve plate shown, increasing the dimension D is beneficial to increase the effective flow area of ​​the suction valve, thereby improving the suction efficiency; while the size range of the size d that can be selected is small, because the size d is too small will cause the reed 1 Reliability problems during bending movement, and too large a dimension d will lead to an increase in the energy consumption required for the bending movement of the reed 1 and a decrease in efficiency

thus, figure 1 The disadvantage of the existing suction valve plate structure shown is that the maximum width dimension D of the sealing area of ​​the reed 1 cannot be increased because The ratio factor D / d of dimension D and dimension d cannot be too large, otherwise the reed 1 will be unstable during bending motion and the suction efficiency will decrease

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