Plate spring and compressor

Abstract

The invention provides a plate spring and a compressor. The plate spring comprises a baseplate. At least two openings spirally extending are formed in the baseplate. A portion, located between every two adjacent openings, of the baseplate forms an elastic arm. The plate spring is characterized in that each opening comprises N pairs of circular arcs connected to one another in sequence, and each pair of circular arcs includes an inner circular arc and an outer circular arc; sequentially, the center of each of the first to N-th inner circular arcs is one vertex of a reference polygon; and sequentially, the center of each of the first to K-th outer circular arcs is one vertex of the reference polygon, and the center of the (K+1)th to N-th outer circular arcs is a position deviated away from the corresponding vertex, wherein K is greater than 1 and less than N-1, and wherein the pairs of circular arcs, the inner circular arcs and the outer circular arcs are all sequentially numbered from 1 to N in a direction away from the reference polygon. According to the present invention, due to the use of the contour line forming way of the elastic arms, the adjustment of such parameters as an arm thickness and a gap of the elastic arms of the plate springs can be realized more favorably; and the plate spring has the characteristics of low equivalent mass, high rigidity, and high natural frequency.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a leaf spring and a compressor. Background technique [0002] A leaf spring is a part etched on a flat plate according to a specific line shape, and is generally used in reciprocating machines. The plate spring support technology is one of the key technologies of the linear compressor. Its main function is to support the mover of the linear motor so that it can reciprocate along the direction of motion. Compared with the traditional cylindrical spring, the leaf spring has a larger radial stiffness, so that the piston will not produce radial displacement due to vibration during the movement, and avoids excessive coaxiality deviation between the piston and the cylinder. Excessive wear and noise caused by friction. Since the axial stiffness of the leaf spring is much smaller than the radial stiffness, the piston of the linear compressor can also freely reciprocate in the cylinder. On t...

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Problems solved by technology

[0006] The invention provides a leaf spring and a compressor to solve the problem that the leaf spring in the prior art cannot freely adjust the arm width and gap of the elastic arm

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