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US 10,707,628 B2Granted
Noise filter and noise reduction unit
AssigneeYazaki Corporation
InventorsHayato Iizuka, Kazuma Kayo
Life of this patent
Estimating the term…
Abstract
A noise filter including a conductor and an annular core. The conductor has a wound portion. The annular core is formed of a magnetic material and passes through the wound portion. The annular core is formed of a pair of split cores that are assembled together with joining surfaces on both ends to be joined to each other. At least one of a recess portion and a projection portion that engage with each other is formed on the joining surfaces of the split cores which are joined to each other.
Claims9
A noise filter comprising:
- at least one conductor including a wound portion;
- and
- an annular core formed of a magnetic material,
- wherein the annular core includes a first split core and a second split core,
- wherein only one of the first split core and the second split core passes through the at least one conductor including the wound portion, and wherein the other of the first split core and the second split core does not pass through any wound portion of any conductor,
- wherein the first split core includes a first joining surface at one end, in a first direction, a second joining surface at the other end, in the first direction, and a first body portion disposed between the first joining surface and the second joining surface in the first direction,
- wherein the second split core includes a third joining surface at the one end, in the first direction, a fourth joining surface at the other end, in the first direction, and a second body portion disposed between the third joining surface and the fourth joining surface in the first direction,
- wherein the first body portion and the second body portion form a space therebetween in a second direction perpendicular to the first direction, the wound portion being wound around at least one of the first body portion and the second body portion,
- wherein the first split core and the second split core are assembled together by joining the first joining surface and the third joining surface to each other and joining the second joining surface and the fourth joining surface to each other, the first joining surface facing the third joining surface in the second direction when assembled,
- wherein the first joining surface includes one of a plurality of recess portions and a plurality of projection portions and the third joining surface includes the other of the plurality of recess portions and the plurality of projection portions, and the one of the plurality of recess portions and the plurality of projection portions of the first joining surface and the other of the plurality of recess portions and the plurality of projection portions of the third joining surface engage with each other with the projection portions being configured for insertion into the recess portions in the second direction, and
- wherein the second joining surface includes one of a plurality of recess portions and a plurality of projection portions and the fourth joining surface includes the other of the plurality of recess portions and the plurality of projection portions, and the one of the plurality of recess portions and the plurality of projection portions of the second joining surface and the other of the plurality of recess portions and the plurality of projection portions of the fourth joining surface engage with each other with the projection portions being configured for insertion into the recess portions in the second direction.
8 more elements
A noise filter comprising:
- a plurality of conductors, each of the conductors including a wound portion;
- and
- an annular core formed of a magnetic material,
- wherein the annular core passes through the wound portion in a first direction,
- wherein the annular core includes a first split core and a second split core,
- wherein the first split core includes a first joining surface at one end, in the first direction, and a second joining surface at the other end, in the first direction,
- wherein the second split core includes a third joining surface at the one end, in the first direction, and a fourth joining surface at the other end, in the first direction,
- wherein the first split core and the second split core are assembled together by joining the first joining surface and the third joining surface to each other and joining the second joining surface and the fourth joining surface to each other,
- wherein the first joining surface includes one of a plurality of recess portions and a plurality of projection portions and the third joining surface includes the other of the plurality of recess portions and the plurality of projection portions, and the one of the plurality of recess portions and the plurality of projection portions of the first joining surface and the other of the plurality of recess portions and the plurality of projection portions of the third joining surface engage with each other with the projection portions being configured for insertion into the recess portions,
- wherein the second joining surface includes one of a plurality of recess portions and a plurality of projection portions and the fourth joining surface includes the other of the plurality of recess portions and the plurality of projection portions, and the one of the plurality of recess portions and the plurality of projection portions of the second joining surface and the other of the plurality of recess portions and the plurality of projection portions of the fourth joining surface engage with each other with the projection portions being configured for insertion into the recess portions, and
- wherein at least one of the first split core and the second split core has a linear shape,
- wherein the plurality of conductors are aligned and spaced apart in the first direction, while only one of the at least one of the first split core and the second split core having the linear shape passes through the wound portions of the plurality of conductors, and
- wherein the other of the first split core and second split core does not pass through any wound portion of any conductor.
10 more elements
A noise filter comprising:
- at least one conductor including a wound portion;
- and
- an annular core formed of a magnetic material,
- wherein the annular core includes a first split core and a second split core,
- wherein only one of the first split core and the second split core passes through the at least one conductor including the wound portion, and wherein the other of the first split core and the second split core does not pass through any wound portion of any conductor,
- wherein the first split core includes a first joining surface at one end, in the first direction, a second joining surface at the other end, in the first direction, and a first body portion disposed between the first joining surface and the second joining surface in the first direction,
- wherein the second split core includes a third joining surface at the one end, in the first direction, a fourth joining surface at the other end, in the first direction, and a second body portion disposed between the third joining surface and the fourth joining surface in the first direction,
- wherein the first body portion and the second body portion form a space therebetween in a second direction perpendicular to the first direction, the wound portion being wound around at least one of the first body portion and the second body portion,
- wherein the first split core and the second split core are assembled together by joining the first joining surface and the third joining surface to each other and joining the second joining surface and the fourth joining surface to each other, the first joining surface facing the third joining surface in the second direction when assembled,
- wherein the first joining surface includes one of a recess portion and a projection portion and the third joining surface includes the other of the recess portion and the projection portion, and the one of the recess portion and the projection portion of the first joining surface and the other of the recess portion and the projection portion of the third joining surface engage with each other with the projection portion being configured for insertion into the recess portion in the second direction,
- wherein the second joining surface includes one of a recess portion and a projection portion and the fourth joining surface includes the other of the recess portion and the projection portion, and the one of the recess portion and the projection portion of the second joining surface and the other of the recess portion and the projection portion of the fourth joining surface engage with each other with the projection portion being configured for insertion into the recess portion in the second direction,
- wherein the recess portion and the projection portion of the first joining surface and the third joining surface are formed of a groove and a ridge that engage with each other,
- wherein the recess portion and the projection portion of the second joining surface and the fourth joining surface are formed of a groove and a ridge that engage with each other,
- wherein the groove and the ridge of the first joining surface and the third joining surface extend in the second direction, and
- wherein a third direction in which the groove and the ridge of the second joining surface and the fourth joining surface extends is different from the second direction.
12 more elements
Dependencies are inferred from the claim text.