Cylinder Volume Adjustment Method of Linear Compressor Based on Top Dead Center Control
A linear compressor and volume adjustment technology, applied in the field of compressors, can solve problems such as increased energy consumption of compressors, compressor vibration, and increased weight of moving parts
Active Publication Date: 2020-07-07
QINGDAO HAIER SMART TECH R & D CO LTD +1
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Problems solved by technology
However, since the piston moving motor and the supporting gear structure move back and forth according to the piston and the mover, the weight of the moving parts (piston and mover) is increased, causing serious vibration when the compressor is running, and the use of related moving parts for a long time Reduced reliability, prone to damage, and increased energy consumption of the compressor due to the increased weight of the moving parts
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[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0022] Such as figure 1 As shown, the linear compressor of this embodiment includes a casing 1, and a piston 2, a cylinder 3, a stator 4, a coil 6, a mover 7, a spring 81 and a rear baffle 8 arranged in the casing 1, and the piston 2 The head 21 can slide in the cylinder 3, the cylinder 3 is provided with an exhaust valve plate 31, the pisto...
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The invention provides a method for adjusting the volume of air cylinders of a linear compressor based on top dead center control. The linear compressor comprises a shell and pistons, the air cylinders, rotors, springs and a rear baffle which are arranged in the shell, and further comprise a driving mechanism used for driving the rear baffle to move in the shell; and the specific adjusting method comprises the following steps of 1, detecting a top dead center state, wherein piston stroke X of the linear compressor is gradually increased or reduced, when the change trend of resonance frequency f is changed, the linear compressor reaches the top dead center state, and the initial piston stroke X0 is recorded when the linear compressor is in the top dead center state; and 2, adjusting the volume of the air cylinders, wherein when the real-time piston stroke Xt is less than X0, the driving mechanism drives the rear baffle to move towards the direction close to the air cylinders, and when the real-time piston stroke Xt is larger than X0, the driving mechanism drives the rear baffle to move towards the direction far away from the air cylinders. According to the adjusting method, the reliability and the efficiency of the linear compressor are improved, and the energy consumption is reduced.
Description
technical field [0001] The invention relates to a compressor, in particular to a method for adjusting cylinder volume of a linear compressor based on top dead center control. Background technique [0002] At present, there are two types of compressors used in refrigeration equipment: rotary type and linear type. The linear compressors in the prior art usually include shells, stators, coils, movers, pistons, cylinders, tailgates, springs and other components; Among them, the mover is provided with a magnet, the magnet is inserted into the magnetic field space formed by the stator, a coil is placed in the stator, one end of the piston is connected to the mover, the head of the piston is slidably set in the inner cavity of the cylinder, and the outer shell An aspirator is also arranged on the top. Chinese Patent No. 200510118582 discloses a piston moving device for reciprocating compressors. By setting the piston moving motor to adjust the distance between the piston and the m...
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IPC IPC(8): F04B49/12
CPCF04B49/12
Inventor 宋斌李衡国许升闫赛娜李孟成吴远刚高山
Owner QINGDAO HAIER SMART TECH R & D CO LTD