Connector, method of manufacturing connector, and wire harness

1. A connector, comprising:

terminals connected to metal conductors of insulated wires each formed by covering the metal conductor with an insulation;

a resin case member comprising a housing space for housing the terminals and an end opening that opens at one end;

a resin lid member fitted to the end opening of the case member; and

a molded resin portion formed by molding so as to cover at least the end opening of the case member fitted with the lid member,

wherein the case member comprises first grooves that have a semicircular cross section and are formed on an inner surface facing the lid member, and

wherein the lid member comprises second grooves that have a semicircular cross section and form, together with the first grooves, wire insertion holes for inserting the insulated wires, and

wherein the insulated wires are pressed by the lid member and are compressed such that diameters inside the wire insertion holes are reduced by not less than 0.05 mm and not more than 0.15 mm.

2. The connector according to claim 1 , wherein the lid member is placed in the end opening of the case member by moving the lid member in a fitting direction to fit to the end opening of the case member, and wherein the case member comprises a facing surface that faces the cover portion in the fitting direction.

3. The connector according to claim 1 , wherein the cover portion is places in the end opening of the case member by moving the lid member in a fitting direction to fit to the end opening of the case member, and wherein the case member comprises a facing surface that faces the cover portion in the fitting direction.

4. The connector according to claim 1 , wherein the lid member comprises a cover portion covering the end opening of the case member except the wire insertion holes and protruding portions protruding from the cover portion toward the housing space of the case member, and wherein the insulated wires are sandwiched between the protruding portions and an inner surface of the case member.

5. The connector according to claim 4 , wherein the insulated wires are curved between a portion connected to the terminals and a portion sandwiched by the protruding portions and the inner surface of the case member.

6. The connector according to claim 5 , wherein the case member is configured that locking protrusions for locking the terminals are provided on extending portions extending toward the end opening from a bottom located opposite to the end opening, and wherein the protruding portions of the lid member prevent the extending portion from being deformed in a direction in which the locked state of the terminals by the locking protrusions is released.

7. The connector according to claim 5 , wherein the cover portion is places in the end opening of the case member by moving the lid member in a fitting direction to fit to the end opening of the case member, and wherein the case member comprises a facing surface that faces the cover portion in the fitting direction.

8. The connector according to claim 4 , wherein the case member is configured that locking protrusions for locking the terminals are provided on extending portions extending toward the end opening from a bottom located opposite to the end opening, and wherein the protruding portions of the lid member prevent the extending portion from being deformed in a direction in which the locked state of the terminals by the locking protrusions is released.

9. The connector according to claim 8 , wherein the cover portion is places in the end opening of the case member by moving the lid member in a fitting direction to fit to the end opening of the case member, and wherein the case member comprises a facing surface that faces the cover portion in the fitting direction.

10. The connector according to claim 4 , wherein each of the protruding portions comprises a rib-shaped protrusion formed on an opposite surface on the opposite side to a contact surface in contact with the insulated wire so as to protrude toward the inner surface of the case member.

11. The connector according to claim 10 , wherein the insulated wires are curved between a portion connected to the terminals and a portion sandwiched by the protruding portions and the inner surface of the case member.

12. The connector according to claim 10 , wherein the case member is configured that locking protrusions for locking the terminals are provided on extending portions extending toward the end opening from a bottom located opposite to the end opening, and wherein the protruding portions of the lid member prevent the extending portion from being deformed in a direction in which the locked state of the terminals by the locking protrusions is released.

13. The connector according to claim 10 , wherein the cover portion is places in the end opening of the case member by moving the lid member in a fitting direction to fit to the end opening of the case member, and wherein the case member comprises a facing surface that faces the cover portion in the fitting direction.

14. The connector according to claim 4 , wherein the cover portion is places in the end opening of the case member by moving the lid member in a fitting direction to fit to the end opening of the case member, and wherein the case member comprises a facing surface that faces the cover portion in the fitting direction.

15. A method of manufacturing a connector that comprises terminals connected to metal conductors of insulated wires each formed by covering the metal conductor with an insulation, a resin case member comprising a housing space for housing the terminals and an end opening that opens at one end, and a molded resin portion formed by molding so as to cover at least the end opening of the case member, the method comprising:

fitting a resin lid member to the end opening of the case member; and

molding the molded resin portion by injecting a mold resin into a cavity of a mold in which the case member with the lid member fitted to the end opening is arranged,

wherein at the time of the fitting, the insulated wires are led out through wire insertion holes that are formed by combining first grooves having a semicircular cross section formed on an inner surface of the case member with second grooves having a semicircular cross section formed on the lid member, and

wherein the insulated wires are pressed by the lid member and are compressed such that diameters inside the wire insertion holes are reduced by not less than 0.05 mm and not more than 0.15 mm.

16. A wire harness, comprising:

insulated wires each formed by covering a metal conductor with an insulation;

terminals connected to the metal conductors of the insulated wires;

a resin case member comprising a housing space for housing the terminals and an end opening that opens at one end; a resin lid member fitted to the end opening of the case member; and

a molded resin portion formed by molding so as to cover at least the end opening of the case member fitted with the lid member,

wherein the case member comprises first grooves that have a semicircular cross section and are formed on an inner surface facing the lid member,

wherein the lid member comprises second grooves that have a semicircular cross section and form, together with the first grooves, wire insertion holes for inserting the insulated wires, and

wherein the insulated wires are pressed by the lid member and are compressed such that diameters inside the wire insertion holes are reduced by not less than 0.05 mm and not more than 0.15 mm.