Reciprocating motor and reciprocating compressor having the same

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.

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 ...

AI Technical Summary

Problems solved by technology

[0011] However, in the conventional reciprocating motor as described above, there is a problem that although the rotor is supported by a mechanical resonance spring composed of a compression coil spring, self-resonance occurs due to the characteristics of the compression coil spring. Specific intervals within the operating frequency of the interval will not be used as the operating frequency

[0012] And, in the reciprocating motor of the prior art, owing to be provided with the mechanical resonant spring that is made of compression coil spring, will produce the limitation of aspects such as mechanical stress limit and vibration distance on the characteristic of its compression coil spring, thus, It is necessary to ensure the specified wire diameter and length of the resonant spring, so there is a limit to reducing the lateral length of the reciprocating motor

[0013] And, in the reciprocating motor of prior art, owing to be provided with the mechanical resonant spring that is made of compression coil spring, need to be respectively provided with the spring support member that is used to fix the two ends of this compression coil spring on rotor and stator, therefore, not only The mechanical structure of the motor becomes complicated, and it is necessary to press multiple resonance springs with high pressure and arrange them respectively on the front and rear sides of the rotor, making the assembly process correspondingly difficult

[0014] Furthermore, in the conventional reciprocating motor, since a rotor including magnets is reciprocally arranged between the outer stator and the inner stator, air gaps are respectively formed on the outer side and the inner side of the rotor, so that Increased overall air gap reduces motor efficiency

[0015] Moreover, in the prior art reciprocating motor, since the thickness of the magnet frame supporting the magnet is relatively thick, the weight of the rotor as a whole increases, thereby not only increasing the power consumption, but also reducing the air gap between the outer stator and the inner stator. will be further increased, resulting in a further reduction in motor efficiency

[0016] And, in the reciprocating compressor to which the above-mentioned reciprocating motor is applied, there will also be the problems existing in the aforementioned reciprocating motor, and therefore there is a limit in making the reciprocating compressor miniaturized.

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