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Reciprocating motor

A reciprocating, stepped technology, applied in the direction of electromechanical devices, electrical components, electrical components, etc., can solve the problems of larger structure and larger interval.

Inactive Publication Date: 2003-09-03
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the distance between the moving parts and other components has to be increased, resulting in a problem that its structure becomes larger

Method used

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Examples

Experimental program
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Embodiment Construction

[0046] The present invention will be described below with reference to the accompanying drawings.

[0047] Figure 4 is a cross-sectional view of a reciprocating motor according to an embodiment of the present invention.

[0048] like Figure 4 As shown, similar to the reciprocating motor of the conventional technology, the reciprocating motor of the preferred embodiment of the present invention includes: a cylindrical outer core 100; an inner core 200 inserted at a certain distance from the outer core; a winding coil 300 combined with the outer core 100; and the moving member 400 inserted between the outer core 100 and the inner core 200 and linearly movable. The winding coil 300 may also be combined with the inner core 200 .

[0049] The outer core 100 and the inner core 200 are firmly combined with a single frame, constituting a stator (S).

[0050] like Figure 5As shown, the inner core 100 combined with the winding coil 300 includes: an annular hole 110 opened on one...

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PUM

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Abstract

A reciprocating motor comprises a mover (400) including an opening unit formed as a ring with an opening on (110) its one side; a first stepped unit (120) in which the inner interval of the opening (110) unit is narrowed gradually toward the entrance; and a second stepped unit (130) continued with the first stepped unit (120) and forming the entrance of the opening unit. According to that, the length of the permanent magnet (420) is decided and the entrance width of the opening unit in which the winding coil (300) is located is reduced, thereby the amount of high price permanent magnet used is reduced, reciprocating movement of the mover getting out of the outer core is minimized, flux on the outer core and the inner core flows smoothly, and leakage of the flux is reduced so the function of the motor can be improved.

Description

technical field [0001] The present invention relates to a reciprocating motor, and more particularly, to an improved reciprocating motor in which the entrance width (i.e. the distance between poles) of the holes provided with winding coils is minimized and the spacing of the holes is maximized to reduce the cost. Reduce the usage of permanent magnets, increase its output, and simplify its structure to make it compact. Background technique [0002] Generally, an electric motor is a device that converts electrical energy into kinetic energy. There are two types of motors: rotary motors, which convert electrical energy into rotary motion, and reciprocating motors, which convert electrical energy into reciprocating motion. [0003] As a driving source, motors are suitable for use in various fields. In particular, it is installed on almost every kind of home appliance, such as refrigerators, air conditioners, washing machines or electric fans. In refrigerators and air conditio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/02H02K33/16
CPCH02K33/16H02K41/02
Inventor 朴景培郑圆贤
Owner LG ELECTRONICS INC