Reciprocating motor and reciprocating compressor having the same

A reciprocating, reciprocating motion technology, applied in the direction of machines/engines, liquid variable capacity machinery, electromechanical devices, etc., can solve the problems of increased power consumption, reduced motor efficiency, increased air gap, etc., to reduce friction loss and Effects of noise, reduced number of parts, and increased spring rigidity

CN107546951BActive Publication Date: 2020-05-05LG ELECTRONICS INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-05-05

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Abstract

The present invention provides a reciprocating motor and a reciprocating compressor having the same. The reciprocating motor of the present invention comprises: a stator provided with a magnetic coil; Air gaps are respectively formed on the two sides; and a rotor is inserted into the stator, at least one magnet is arranged in one of the air gaps on both sides, and a magnetic body other than a magnet is arranged in the other air gap, to reciprocate the rotor relative to the stator.
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Description

technical field

[0001] The invention relates to a reciprocating motor and a reciprocating compressor thereof, in particular to a reciprocating motor using magnetic energy to resonate a piston and a reciprocating compressor having the same. Background technique

[0002] Motor (Motor) is a device that converts electrical energy into mechanical energy to obtain rotational force or reciprocating power. Such motors can be divided into AC motors and DC motors according to the type of power applied.

[0003] The motor includes a stator (Stator) and a rotor (Mover or Rotor). Along the direction of the magnetic flux (Flux) generated when a current flows in the coil (Coil) of the stator, the rotor equipped with a magnet (Magnet) performs rotary motion or reciprocating motion.

[0004] Motors can be classified as rotary motors or reciprocating motors according to the way the rotor moves. Rotary motors use a method in which magnetic flux is formed on the stator according to the power ...

Examples

Embodiment Construction

[0063] Hereinafter, a reciprocating motor and a reciprocating compressor including the reciprocating motor according to the present invention will be described in detail based on an embodiment shown in the drawings.

[0064] The reciprocating motor of the present embodiment performs reciprocating motion using a centering force in a reciprocating direction generated between a stator provided with a magnetic coil and a magnet. The central force in the reciprocating direction refers to the force stored in the direction where the magnetic energy (magnetic potential energy, reluctance) is low when the magnet moves in the magnetic field, and this force forms a magnetic spring.

[0065] Therefore, in this embodiment, when the magnet reciprocates using the magnetic force based on the magnetic coil, the magnet accumulates a force to return to the direction of the air gap due to the magnetic spring, and the rotor including the magnet is driven by the force accumulated in the magnetic spr...