Waterproofing members integrally formed with elements of a charging coupler

Upon completion of the manufacturing of constituent elements of the charging coupler, waterproof members each with a predetermined shape and width are integrally formed, made from an appropriate material, and disposed at a predetermined portion and/or segment of the constituent elements. In consequence, a hermetic seal is effectuated between each of the constituent elements of the waterproof members and a corresponding one of adjacent related elements of the charging coupler to therefore prevent any gap from forming in the charging coupler after long use, thereby preventing intrusion of ambient moisture.

BACKGROUND OF THE INVENTION

1. Technical Field

The present invention relates to waterproof mechanisms of charging couplers and, more particularly, to a waterproof mechanism of a charging coupler. Upon completion of the manufacturing of constituent elements of the charging coupler, waterproof members each with a predetermined shape and width are integrally fainted, made from an appropriate material, and disposed at a predetermined portion and/or segment of the constituent elements. In consequence, a hermetic seal is effectuated between each of the constituent elements which the waterproof members are coupled to and a corresponding one of adjacent related elements of the charging coupler to therefore prevent any gap from forming in the charging coupler after long use, thereby preventing intrusion of ambient moisture.

2. Description of Prior Art

Conventional charging couplers for use with electric vehicles, hybrid electric vehicles, and electric cars exhibit great diversity in shape. Basically, the conventional charging couplers must each have a charging coupler body with a predetermined shape. A charging control unit is disposed at a predetermined segment of the charging coupler body. A press member is disposed on the charging coupler body, positioned proximate to the charging control unit, and adapted to be pressed by a human hand. A charging coupler connection unit is disposed at a rear end of the charging coupler body to effectuate positional engagement in conjunction with a power cable of the charging coupler. A charging end unit is disposed at a front end of the charging coupler body. Therefore, the charging coupler is fit for use in charging electric vehicles, hybrid electric vehicles, and electric cars.

To charge an electric vehicle, hybrid electric vehicle, or electric car with the charging coupler, it is necessary to open a lid which covers a charging port of the vehicle/car, insert the charging end unit in front of the charging coupler into the charging port of the vehicle/car, insert a charging terminal of the charging end unit into an inlet of the charging port, and eventually press a press member of the charging coupler to begin charging the vehicle/car.

To prevent intrusion of ambient moisture and a resultant electrical shock or short circuit, waterproof members are disposed at the peripheral portion of the charging port of the vehicle/car and/or a predetermined portion of exposed elements of the charging coupler. In general, the waterproof members of the charging coupler are formed in a process which is separate from the process of forming related elements, and the waterproof members get coupled to the related elements while the process of putting together charging coupler elements is underway, thereby rendering the charging coupler waterproof.

Given a gap between a waterproof member and a constituent element, the capability of waterproof members of a conventional charging coupler to prevent intrusion of ambient moisture deteriorates after long use of the conventional charging coupler.

Therefore, it is important to overcome a drawback of the prior art, that is, a hermetic seal which is otherwise effectuated between a constituent element which waterproof members are coupled to and an adjacent related element of the charging coupler for use in charging vehicles/cars is likely to vanish after long use. To this end, upon completion of the manufacturing of constituent elements of the charging coupler, waterproof members which related elements inside the charging coupler are coupled to and which each has a predetermined shape, are integrally formed, made from an appropriate material, and disposed at a predetermined portion of the constituent elements, to not only improve the way the waterproof members get engaged with the constituent elements but also ensure that a hermetic seal can be effectuated between each of the waterproof members and a corresponding one of adjacent related elements of the charging coupler.

SUMMARY OF THE INVENTION

In view of a drawback of the prior art, that is, a gap is likely to develop between a waterproof member and a constituent element of a charging coupler for use in charging electric vehicles, hybrid electric vehicles, and electric cars, after long use, it is important to overcome the drawback of the prior art with a solution briefly described as follows: upon completion of the manufacturing of constituent elements of the charging coupler, waterproof members each with a predetermined shape and width are integrally formed, made from an appropriate material, and disposed at a predetermined portion and/or segment of the constituent elements. In consequence, a hermetic seal is effectuated between each of the constituent elements which the waterproof members are coupled to and a corresponding one of adjacent related elements of the charging coupler to therefore prevent any gap from forming in the charging coupler after long use, thereby preventing intrusion of ambient moisture.

It is an objective of the present invention to provide a waterproof mechanism of a charging coupler, with the charging coupler adapted to charge vehicles, comprising a charging coupler body, a charging coupler control unit, a press element, a top end concealment element, a charging coupler connection unit holding therein a lining element at one end, and a charging end unit. Upon completion of the forming process of the elements of the charging end unit and the charging coupler control unit, waterproof members with required shape and width are formed from an appropriate material at a predetermined portion and/or segment of the charging end unit and the charging coupler control unit. In consequence, a hermetic seal is effectuated between each of constituent elements which make up the charging coupler and require prevention of ambient moisture intrusion and a corresponding one of adjacent related elements of the charging coupler to therefore prevent any gap from forming in the charging coupler after long use, thereby preventing intrusion of ambient moisture.

Another objective of the present invention is that one of the waterproof members coupled to the charging end unit is disposed in front of an engagement segment to effectuate an enhanced hermetic seal as soon as the charging coupler body is rotated and thus fastened in place.

Yet another objective of the present invention is that the waterproof members of the charging coupler control unit are disposed at a waist segment centrally located to thereby effectuate a hermetic seal as soon as the charging coupler body gets positional engagement within a predetermined receiving space.

DETAILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION

The present invention provides a waterproof mechanism of a charging coupler (shown inFIG. 3). According to the present invention, a charging coupler7for use in charging chargeable vehicles/cars, such as electric vehicles, hybrid electric vehicles, and electric cars, comprises a charging coupler body1, a charging coupler control unit2, a press element3, a top end concealment element4, a charging coupler connection unit5holding therein a lining element51at one end, and a charging end unit6.

The charging coupler body1, the charging coupler control unit2, the press element3, the top end concealment element4, the charging coupler connection unit5holding therein the lining element51at one end, and the charging end unit6are integrally formed from a predetermined high-mechanical-strength material in a manufacturing process. Waterproof members21,61with required shape and width are coupled to constituent elements of the charging coupler7in the situation where the constituent elements require prevention of ambient moisture intrusion. To preclude the intrusion of ambient moisture through the charging end unit6exposed at the front end and the charging coupler control unit2disposed at an upper end of the charging coupler body1, the charging coupler7is characterized in that the waterproof members61,21are coupled to a predetermined portion and/or segment of the charging end unit6and the charging coupler control unit2, respectively.

According to the present invention, coupling the waterproof members21,61to the constituent elements which require prevention of ambient moisture intrusion entails performing a process as follows: upon completion of the forming process of the elements of the charging end unit6and the charging coupler control unit2, waterproof members61,21(shown inFIG. 1,FIG. 2) with required shape and width are formed from an appropriate material at a predetermined portion and/or segment of the charging end unit6and the charging coupler control unit2. The waterproof member61coupled to the charging end unit6is disposed in front of an engagement segment62to effectuate an enhanced hermetic seal as soon as the charging coupler body1is rotated and thus fastened in place (shown inFIG. 6). The waterproof member21of the charging coupler control unit2is disposed at a waist segment (shown inFIG. 2) centrally located to thereby effectuate a hermetic seal as soon as the charging coupler body1gets positional engagement within a predetermined receiving space11(shown inFIG. 6).

The charging coupler body1, the charging coupler control unit2, the press element3, the top end concealment element4, the charging coupler connection unit5holding therein the lining element51at one end, and the charging end unit6are implemented (shown inFIG. 6) by inserting the charging coupler control unit2into the predetermined receiving space11disposed at the upper end of the charging coupler body1, connecting a spring22to an upper end of the charging coupler control unit2, allowing the other end of the spring22to abut against the press element3, passing two lugs31extending from the middle segment of the press element3through two support portions13of the charging coupler body1by a pin12, respectively, allowing the press element3to pivotally connect with the charging coupler body1upon introduction of the two lugs31, allowing the top end concealment element4to engage with the upper end portion of the charging coupler body1, inserting the charging coupler connection unit5holding therein the lining element51at one end into a terminal end of the charging coupler body1, effectuating positional limitation with a screwing element14, inserting the charging end unit6directly into a front end opening15of the charging coupler body1, and effectuating positional limitation with a pin16and a screwing element17, to finalize the assembly of the charging coupler7(shown inFIG. 4,FIG. 5).

The charging end unit6and the charging coupler control unit2of the waterproof members61,21are coupled to the charging coupler7. Since the charging end unit6and the charging coupler control unit2are directly formed from a required material at a predetermined portion and/or segment of the charging coupler7during the process of forming the constituent elements, a hermetic seal is effectuated as soon as the constituent elements (i.e., the charging end unit6and the charging coupler control unit2) which require prevention of ambient moisture intrusion come into contact with adjacent related elements (i.e., the charging coupler body1), to prevent any gap from forming in the charging coupler7after long use, thereby preventing intrusion of ambient moisture.