WATERPROOF CONNECTOR

• US 20180109028A1
• Filed: 05/23/2016
• Published: 04/19/2018
• Est. Priority Date: 05/26/2015
• Status: Active Grant

• Current Assignee: Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Original Assignee: Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Inventors: Rui, Hao
• Granted Patent: US 10,074,926 B2
• Time in Patent Office: Days
• CPC Class Codes: H01R 13/113 co-operating with pins or blades having a rectangular transverse section
• CPC Class Codes: H01R 13/506 assembled by snap action of the parts
• CPC Class Codes: H01R 13/5202 Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
• CPC Class Codes: H01R 13/5205 Sealing means between cable and housing, e.g. grommet H01R13/5221 takes precedence
• CPC Class Codes: H01R 13/625 Casing or ring with bayonet engagement
• CPC Class Codes: H01R 2201/26 for vehicles
• CPC Class Codes: H01R 24/20 Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable

Abstract

A waterproof connector (10) disclosed by this specification includes an annular rubber ring (30) and a housing (20) on which the rubber ring (30) is to be mounted. A rotation stopping rib (trapezoidal rib (34)) having a pair of engaging surfaces is provided on a side edge of the rubber ring (30), whereas an accommodation groove (26) into which the rotation stopping rib is to be accommodated is provided in the housing (20). The accommodation groove (26) is composed of a bottom surface (21A) and a pair of engaged surfaces (facing surfaces (42)) provided on both sides of the bottom surface (21A) and configured to press the rotation stopping rib to the bottom surface (21A) by being engaged with the engaging surfaces of the rotation stopping rib.

Claims

1. A waterproof connector, comprising:

an annular rubber ring;

a housing including a fitting portion fittable into a mounting hole of a device and having the rubber ring mounted on an outer peripheral surface of the fitting portion; and

a front retainer including a receptacle to be fit externally on the outer peripheral surface of the fitting portion and configured to suppress forward detachment of the rubber ring,

wherein;

a trapezoidal rib having two inclined surfaces and a substantially trapezoidal cross-sectional shape is provided on a side edge of the rubber ring, whereas an accommodation groove into which the trapezoidal rib is to be accommodated is provided in the housing; and

the accommodation groove having a bottom surface defining a part of the outer peripheral surface of the fitting portion and a part of the receptacle and having two facing surfaces provided on both sides of the bottom surface and configured to press the trapezoidal rib to the bottom surface by being engaged with the inclined surfaces of the trapezoidal rib, and the inclined surfaces and the facing surfaces facing the inclined surfaces are provided at positions capable of contacting each other via a tiny clearance.

2. A waterproof connector, comprising:

an annular rubber ring; and

a housing on which the rubber ring is to be mounted,

wherein;

a rotation stopping rib having a pair of engaging surfaces is provided on a side edge of the rubber ring, and an accommodation groove into which the rotation stopping rib is to be accommodated is provided in the housing;

the accommodation groove having a bottom surface and two engaged surfaces provided on both sides of the bottom surface and configured to press the rotation stopping rib to the bottom surface by engaging the engaging surfaces of the rotation stopping rib;

the housing includes a fitting portion fittable into a mounting hole provided in a case of a device, a terminal accommodating portion to be mounted into the fitting portion and a front retainer configured to hold the terminal accommodating portion in the fitting portion; and

the bottom surface is provided on the fitting portion, whereas the engaged surfaces are provided in the front retainer.

3. The waterproof connector of claim 2, wherein the front retainer includes a receptacle to be fit externally on the fitting portion, and the bottom surface is a part of an outer peripheral surface of the fitting portion, whereas the engaged surfaces are facing surfaces that couple an inner peripheral surface and an outer peripheral surface of the receptacle and face each other in a circumferential direction of the receptacle.