Connector

Abstract

A connector (1) comprising: a first connector housing (2) including an engaging projection portion (23) protruding from an outer peripheral surface and a separate projection portion (24) separated from the engaging projection portion (23) in an assembly direction; one or more first terminals (3) housed inside the first connector housing (2); a second connector housing (5) attached to the first connector housing (2) in the assembly direction and including an engaging portion (53) connected to the engaging projection portion (23) and brought into an engaged state by being moved over the engaging projection portion (23) into a snap-in state and penetrating between the engaging projection portion (23) and the separate projection portion (24); one or more second terminals (6),which are housed inside the second connector housing (5) and connected in a snap-in state to the respective first terminals (3); and a fastening detection element (8) which is movable from an initial position to a fastening securing position in the engaged state by being held by the second connector housing (5), and which comprises a detection projection portion (83) which, by moving from the initial position to the fastening securing position, is moved in sequence over the engaging projection portion (23) and the engaging portion (53) and faces the separated projection portion (24) at the fastening securing position in the mounting direction, wherein the engaging portion (53) comprises: a step-over surface (53a) formed on one end portion, of two end portions in the mounting direction, on a first direction side, and the engaging projection portion (23) comprises: a step-over surface (23b),which is formed on one end portion, of two end portions in the mounting direction, on a second direction side and which is brought into contact with the overhang surface (53a) in the mounting direction, characterized in that the engagement portion (53) comprises: a tip end projection (53c) which protrudes in a first direction from one end portion on an upward side, of two end portions arranged in a vertical direction orthogonal to the mounting direction of the overhang surface (53a), and after the connection of the first terminal (3) to the second terminal (6) has begun, the tip end projection (53c) faces the engagement projection portion (23) in the vertical direction, and after the tip end projection (53c) has faced the engagement projection portion (23), the overhang surface (53a) is brought into contact with the overhang surface (23b).

Claims

[1] Connector (1) comprising: a first connector housing (2) comprising an engaging projection portion (23) projecting from an outer peripheral surface and a separate projection portion (24) separated from the engaging projection portion (23) in a mounting direction; one or more first terminals (3) housed inside the first connector housing (2); a second connector housing (5) which is fixed to the first connector housing (2) in the mounting direction and comprises an engaging portion (53) which is connected to the engaging projection portion (23) and brought into an engaged state by being moved over the engaging projection portion (23) into a locking state and penetrating between the engaging projection portion (23) and the separated projection portion (24); one or more second terminals (6) housed inside the second connector housing (5) and connected to the respective first terminals (3) in a snap-in state; and a fastening detecting member (8) which is movable from an initial position to a fastening securing position in the engaged state by being held by the second connector housing (5), and which comprises a detecting projection portion (83) which is moved by moving from the initial position to the fastening securing position in sequence over the engaging projection portion (23) and the engaging portion (53) and faces the separated projection portion (24) at the fastening securing position in the mounting direction, wherein the engagement section (53) comprises: a step-over surface (53a) formed on one end portion of two end portions in the mounting direction on a first direction side, and the engagement projection portion (23) comprises: a step-over surface (23b) formed on one end portion of two end portions in the mounting direction on a second direction side and brought into contact with the step-over surface (53a) in the mounting direction, characterized by , that the engagement section (53) comprises: a tip end projection (53c) projecting in a first direction from one end portion on an upward side of two end portions arranged in a vertical direction orthogonal to the mounting direction of the step-over surface (53a), and after the connection of the first terminal (3) to the second terminal (6) has been started, the tip end projection (53c) faces the engaging projection portion (23) in the vertical direction, and after the tip end projection (53c) has been faced to the engaging projection portion (23), the overhang surface (53a) is brought into contact with the overhang surface (23b). [2] The connector (1) according to claim 1, wherein in the engagement portion (53), an upper surface of the two surfaces in the vertical direction is formed flat, and a front portion on a first direction side extends to a front portion on a first direction side of the tip end projection (53c). [3] The connector (1) according to claim 2, wherein in the separated protrusion portion (24), an upper surface (24a) of the two surfaces is formed flat in the vertical direction, and in the engaged state, the upper surface (24a) is formed with the upper surface (53b) of the engaging portion (53) in a straight line or lower in the vertical direction than the surface (53b) of the engaging portion (53). [4] Connector (1) according to claim 2 or 3, wherein in the engaging projection portion (23) in the engaged state, an upper surface (23a) of the two surfaces is formed further down in the vertical direction than the upper surface (53b) of the engaging portion (53), in the engagement portion (53), a guide surface (53d) extending to the upper surface (24a) is formed on one end portion of the two end portions in the mounting direction on a second direction side, and viewed from the mounting direction, the guide surface (53d) is an inclined surface which projects from the upper surface (23a) of the engaging projection portion (23) and which projects upward toward the second direction side. [5] Connector (1) according to one of claims 1 to 4, wherein the fastening detection element (8) comprises: a main body portion (81) and a locking arm portion (82) having one end connected to the main body portion (81), and the detecting projection portion (83) is formed at the other end of the locking arm portion (82), and the locking arm portion (82) projects downward from a lower surface (82a) of the two surfaces in the vertical direction and is formed with a rib (84) extending to the detecting projection portion (83). [6] The connector (1) according to any one of claims 1 to 5, wherein a gap is formed between the tip end projection (53c) and the engaging projection portion (23) when the tip end projection (53c) and the engaging projection portion (23) face each other in the vertical direction.

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