Patent ID: 7319376

Claim:
A noise filter comprising: a core defining therein a cable insertion hole extending in a cable insertion direction; and a case accommodating therein the core and comprising a first case covering a half of an outer peripheral surface of the core in a direction perpendicular to the cable insertion direction, and a second case coupled to the first case and covering a remaining half of the outer peripheral surface of the core; and wherein the first case comprises: a first side peripheral portion having a first end defining a first parting surface extending in a direction parallel to the cable insertion direction; a second side peripheral portion confronting the first side peripheral portion and having a second end defining a second parting surface extending in a direction parallel to the first parting surface, the first side peripheral portion having a first core support piece for biasing the core toward the second side peripheral portion, and the second side peripheral portion having a second core support piece for biasing the core toward the first side peripheral portion; and a first bottom wall portion connected to the first side peripheral portion and to the second side peripheral portion, the first bottom wall having a first core presser piece for biasing the core toward the second case; and wherein the second case comprises: a third side peripheral portion having a third end defining a third parting surface extending in a direction parallel to the cable insertion direction and configured to be in surface contact with the first parting surface; a fourth side peripheral portion confronting the third side peripheral portion and having a fourth end defining a fourth parting surface extending in a direction parallel to the third parting surface and configured to be in surface contact with the second parting surface, the third side peripheral portion having a third core support piece for biasing the core toward the fourth side peripheral portion, and the fourth side peripheral portion having a fourth core support piece for biasing the core toward the third side peripheral portion; and a second bottom wall portion connected to the third side peripheral portion and to the fourth side peripheral portion, the second bottom wall having a second core presser piece for biasing the core toward the first case.