Electric linear compressor

A linear compressor, electric technology, applied in machine/engine, mechanical equipment, liquid variable capacity machinery, etc., can solve the problems of low electromagnetic thrust control accuracy, difficulty in improving system compactness, and unfavorable resonance spring design, etc. Conducive to the arrangement of limited space, the mass of the mover is small, and the effect of improving the compactness

Active Publication Date: 2016-02-03
NANJING UNIV OF SCI & TECH
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Problems solved by technology

Most current electric linear compressors use moving magnet linear oscillating actuators as the driving actuators, which have a large specific thrust, but the mass of the mover is high, which is not conducive to the design of the resonance spring, and it is difficult to improve the compactness of the system.
In addition, due to the existence of positioning force, the precision of electromagnetic thrust control is not high

Method used

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  • Electric linear compressor

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Embodiment Construction

[0014] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0015] Aspects of the invention are described in this disclosure with reference to the accompanying drawings, which show a number of illustrated embodiments. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of numerous ways, since the concepts and embodiments disclosed herein are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

[0016] According to an embodiment of the present invention, a high-efficiency and compact electric linear compressor for new...

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Abstract

The invention provides an electric linear compressor which can be applied to new energy automobiles and has the characteristics of being efficient and compact. A stator of the electric linear compressor is composed of coaxial inner and outer magnetic yokes with annular structures and a permanent magnet array. Halbach arrays formed in the radial and axial magnetization directions are adopted as the permanent magnet array. A free piston assembly is connected with a rotor coil through a connection assembly, and the movement direction of the free piston assembly and the movement direction of the rotor coil are consistent with the direction of the axis of the stator. The rotor coil can make reciprocating linear movement in a work air gap; and the free piston assembly is driven by the rotor coil and a resonant spring jointly to make simple harmonic vibration at the static balance position, the amplitude is adjustable, and therefore the air inflow, compression, exhaust and expanding process can be completed. The electric linear compressor has the characteristics of being high in specific thrust, controllability and resonant frequency, the power factor of the linear compressor can be remarkably improved, and the volume specific energy is reduced.

Description

technical field [0001] The invention relates to the technical field of new energy automobiles, in particular to a compressor for automobiles, in particular to an electric linear compressor. Background technique [0002] Under the background of national energy conservation and emission reduction, new energy vehicles such as electric and hybrid vehicles have become a new technology in the field of automobile industry, and are expected to develop into the mainstream of automobile industry technology. In new energy vehicles such as electric and hybrid vehicles, the components originally driven by the engine through the transmission need to be driven by electricity, including refrigeration compressors used in automotive air conditioners and air compressors used in air pressure brakes. In the traditional compressor structure, a set of transmission mechanism (such as a crank-link mechanism) is usually required to convert the rotary motion into the reciprocating linear motion of the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B31/00F04B35/04
Inventor 时岩彭安琪井源徐家骏王凯孙平
Owner NANJING UNIV OF SCI & TECH
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