Source: http://www.google.com/patents/US6858954?ie=ISO-8859-1
Timestamp: 2015-04-28 07:31:07
Document Index: 731445175

Matched Legal Cases: ['arts 11', 'arts 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 40']

Patent US6858954 - Reciprocating motor - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsDisclosed is a reciprocating motor including a multi type outer core having a plurality of single cores constructed with consecutively-stacked lamination sheets centering around a plurality of ring-shaped winding coils so as form a cylindrical structure and an insulating member placed between a plurality...http://www.google.com/patents/US6858954?utm_source=gb-gplus-sharePatent US6858954 - Reciprocating motorAdvanced Patent SearchPublication numberUS6858954 B2Publication typeGrantApplication numberUS 09/988,751Publication dateFeb 22, 2005Filing dateNov 20, 2001Priority dateNov 20, 2000Fee statusPaidAlso published asCN1193482C, CN1354551A, DE10156298A1, US20040012270Publication number09988751, 988751, US 6858954 B2, US 6858954B2, US-B2-6858954, US6858954 B2, US6858954B2InventorsKye Si Kwon, Hyung Jin Kim, Hyuk LeeOriginal AssigneeLg Electronics Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (13), Referenced by (1), Classifications (10), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetReciprocating motor
US 6858954 B2Abstract
an outer core having a plurality of single cores constructed with consecutively-stacked lamination sheets centering around a plurality of ring-shaped winding coils so as form a cylindrical structure and a magnetically insulating member placed between the single cores so that fluxes formed in the plurality of single cores by currents flowing through the winning coils are isolated from each other by the insulating member; an inner core inserted in the outer core so as to leave a predetermined gap with an inside circumferential face of the outer core; and a moving part having a plurality of magnet rows confronting the winding coils of the outer core respectively so as to reciprocate in accordance with a variation of currents flowing through the winding coils. 2. The reciprocating motor of claim 1, wherein lateral sides of the single cores are fixed in one body to the insulating member centering around the insulating member.
a multi type outer core having a plurality of single cores constructed with consecutively-stacked lamination sheets centering around a plurality of ring-shaped winding coils so as form a cylindrical structure and an insulating member placed between a plurality of the single cores; in inner core inserted in the multi type outer core so as to leave a predetermined gap with an inside circumferential face of the multi type outer core; and a moving part having a plurality of magnet rows confronting the winding coils of the multi type outer core respectively so as to reciprocate in accordance with a variation of currents flowing through the winding coils, wherein the single cores of the multi type outer core are constructed with the lamination sheets of �L� type thin plates stacked each other alternately centering around the winding coils so as to form the cylindrical structure. 5. The reciprocating motor of claim 4, wherein each of the lamination sheets is constructed with a horizontal path part forming an outer circumferential face of the single core, a vertical path part extending from one end of the horizontal path part in a direction vertical to the horizontal path part, and a slant path part inclined from an end of the vertical path part in a length direction of the horizontal path part.
a multi type outer core having a plurality of single cores constructed with consecutively-stacked lamination sheets centering ground a plurality of ring-shaped winding coils so as form a cylindrical structure and an insulating member placed between a plurality of the single cores; an inner core inserted in the multi type outer core so as to leave a predetermined grip with an inside circumferential face of the multi type outer core; and a moving part having plurality of magnet rows confronting the winding coils of the multi type outer core respectively so as to reciprocate in accordance with a variation of currents flowing through the winding coils, wherein the first and second single cores are fixed in one body to the insulating member by a connecting-fixing means centering around the insulating member. 10. The reciprocating motor of claim 9, wherein the connecting-fixing means comprises connecting recesses formed at both sides of the single cores and fixing protrusions protruding from both sides of the insulating member so as to fix the first and second single cores thereto by being inserted into the connecting recesses by force.
FIG. 1 illustrates a side view of a reciprocating motor according to a related art and FIG. 2 illustrates a cross-sectional view of a reciprocating motor bisected along a line II�II in FIG. 1.
The first to third vertical path parts 11 b, 11 c, and 11 d are formed to leave predetermined intervals therebetween so as to form poles at the tips. Hence, a pair of coil-fitting grooves H and H′ are provided between the first to third vertical path parts 11 b, 11 c, and 11 d. The coil-fitting grooves H and H′ are rectangular shapes of which one sides toward an inner circumferential face of the multi type outer core 10 are open.
Namely, generated is the closed-loop type flux having a path consisting of the first vertical path part 11 b�horizontal path part 11 a�second vertical path part 11 c�inner core 20�first vertical path part 11 b. At this moment, the other flux is formed by the current flowing through the winding coil 30′ in a counterclockwise direction (direction b) along the inner core 20 and multi type outer core 10 adjacent to the winding coil 30′ located at a right side in the drawing.
Namely, generated is the other closed-loop type flux having a path consisting of the third vertical path part 11 d�horizontal path part 11 a�second vertical path part 11 c�inner core 20 �third vertical path part 11 d. Therefore, the moving part 40 including the magnets 41 and 41′ moves toward the right direction (direction A) of the drawing by a reciprocal reaction of a pair of the fluxes formed by the currents flowing through the winding coils 30 and 30′ and the other pair of the fluxes formed between the multi type outer core 10 and inner core 20.
Preferably, the single cores of the multi type outer core are constructed with the lamination sheets of �L� type thin plates stacked each other alternately centering around the winding coils so as to form the cylindrical structure.
FIG. 2 illustrates a cross-sectional view of a reciprocating motor bisected along a line II�II in FIG. 1;
The single cores 120 and 130 include a first single core 120 constructed with lamination sheets K and K′ of �L� type plates stacked alternately each other so as to form a cylindrical shape centering around the winding coils 110 and 110′ and a second single core 130 having the same structure of the first single core 120 so as to be coupled in parallel with the first single core 120 through the insulating member 150.
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