Linear compressor and piston of linear compressor
A technology of linear compressors and pistons, which is applied in the direction of machines/engines, mechanical equipment, liquid displacement machinery, etc., and can solve problems such as reduced performance of linear compressors, damage to the suction valve plate 22, and damage to the piston head 23 , to achieve the effect of avoiding skew, reducing quality and reducing defective rate
Active Publication Date: 2018-01-09
QINGDAO HAIER SMART TECH R & D CO LTD
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Problems solved by technology
[0007] But this splicing structure design requires a rubber ring seal between the piston rod 24 and the piston head 23, and the fastening bolt 21 needs to be tightened in front of the piston head 23, which may damage the piston head 23. It is easy to produce problems such as damage to the suction valve plate 22 during the fastening process, which seriously reduces the performance of the linear compressor
[0008] At the same time, in order to ensure that the piston has good sealing performance, the bolt 21 needs to be made of a metal material to provide a higher fastening strength, resulting in a heavier piston and higher production costs.
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[0061] Such as image 3 Shown is a schematic diagram of a piston of the linear compressor of the present invention. The piston includes a piston head 33 and a piston rod 34, and the piston head 33 and the piston rod 34 are fixedly connected by a bolt 31 and a nut 35.
[0062] The bolt 31 includes a bolt head 311 and a screw 312. A suction valve plate 32 is provided between the bolt head 311 and the piston head 33.
[0063] A through positioning through hole 331 is defined in the center of the piston head 33. The part of the piston rod 34 close to the piston head 33 is a solid section 341, and the remaining part is a hollow section 342. A through positioning through hole 3411 is defined in the center of the solid section 341. The positioning through hole 331 of the piston head 33 and the positioning through hole 3411 of the solid section 341 are both passed through by the screw 312. Such positioning through hole technology facilitates processing and improves production efficiency...
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The invention discloses a linear compressor and a piston thereof. The piston comprises a piston head and a piston rod, wherein the piston head and the piston rod are fixedly connected through a bolt and a nut. According to the piston of the linear compressor, the threaded end of a threaded rod is fastened with the nut to prevent the piston from being damaged, so that the assembly reject ratio is reduced, and the performance of the compressor is improved.
Description
Technical field [0001] The invention relates to a linear compressor, in particular to a piston of a linear compressor. Background technique [0002] The linear compressor sucks the refrigerant gas into the cylinder, and uses the linear driving force of the linear motor to make the piston linearly reciprocate in the cylinder to compress the fluid, and then discharge the compressed fluid. Since the linear compressor is finally compressed by the piston, the material used for the piston requires high hardness, high wear resistance, high temperature resistance, high temperature abrasion resistance, and stable thermal expansion coefficient. The splicing structure can reduce the cost, but in splicing, the gas flow path is not smooth, the connection is leaking, the coaxiality of the connection is not high, and skew occurs. [0003] Such as figure 1 As shown, the interior of the linear compressor 1 is axially symmetric. The linear compressor 1 includes a linear motor, and the mover compone...
Claims
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IPC IPC(8): F04B39/00
Inventor 赵志强李衡国闫赛娜宋斌许升李标
Owner QINGDAO HAIER SMART TECH R & D CO LTD