The present disclosure relates to outdoor electrical outlets or receptacles and more particularly to protective apparatus for protecting the outlets from a wide range of weather conditions. In particular, electrical outlets provided on power pedestals are considered.
Conventional outdoor receptacles are typically protected by flip covers that are positioned over individual receptacles or outlets, or by outlet covers with hinged doors that lift to provide access to the outlets. Such flip covers may include gaskets for weather sealing, typically either on the covers themselves, or around the perimeter of the base frame against which the flip cover will rest.
While generally functional during fair weather, prior art protective devices for outdoor electrical outlets or receptacles suffer from a number of limitations. For example, in temperatures at or below freezing, the flip covers are often sealed by ice against the frame such that the flip covers cannot be lifted to access the outlet. Even if the flip covers can be lifted to plug into an outlet, ice and snow may accumulate while the flip cover is lifted, exposing a significant area of the electrical outlet to accumulation of ice and snow. This may prevent the flip cover from closing completely, as the ice and snow may prevent clean contact between the flip cover and the base frame. Furthermore, the flip cover itself may be frozen in the open position, making it difficult or impossible to close.
In addition, over time, the weather sealing gasket on or around the flip cover may deteriorate, and no longer keep out moisture from the electrical outlet, possibly allowing moisture to seep into the electrical outlet and potentially causing an electrical safety problem. While use of GFCI (Ground Fault Circuit Interruptor) receptacles, may help avoid serious electrical shocks, the electrical outlet may nevertheless become damaged from the moisture, and have to be replaced at significant cost.
Power pedestals are often used to provide outlets or receptacles for accessing electricity outdoors, and are commonly used in applications such as outdoor parking lots or drive ways to recharge electric vehicles or to power a block heater, for example. In such outdoor applications, power pedestals are often positioned in locations in which vehicles may come into accidental contact with the power pedestals. Even a minor collision may result in major damage to power pedestals, resulting in sufficient damage requiring replacement of the housing, or the entire unit.
As well, power pedestals are often subjected to adverse weather, and moisture trapped within or around the pedestals may damage them and cause them to fail or become unsightly prematurely.
Therefore, what is needed are improved designs for the protection of outdoor electrical outlets or receptacles and power pedestals that addressing at least some of the above limitations in the prior art.
The present disclosure relates to a protective apparatus for outdoor electrical outlets or receptacles and power pedestals subjected to a wide range of weather conditions including variations in temperature, humidity, and precipitation, and various improvements thereto. In particular, electrical outlets provided on power pedestals are considered.
In an embodiment, the protective apparatus is an angled hood which has at least one angled top surface, at least two side panels, and an angled bottom surface having an aperture suitably sized and shaped to receive a power cord from an electrical device.
In a preferred embodiment, the top surface of the hood is angled and extends to a suitable horizontal distance from the wall such that the hood substantially covers and protects the electrical outlet being covered. It will be appreciated, however, that the angle of the top surface of the hood, and the distance of the hood from the wall may be varied between any suitable range.
In another embodiment, the top surface of the hood may extend to a suitable horizontal distance such the electrical outlet being covered is suitably protected from moisture, including rain and snow that may be directed towards the outlet at an angle. Thus, the electrical outlet is suitably protected even if access to the electrical outlet always remains open through the aperture in the angled bottom surface.
By adjusting the angle of the top surface of the hood, how far the hood extends horizontally, and the size of the aperture in the angled bottom surface, the hood may be adjusted for virtually any type and size of electrical outlet requiring protection.
In another aspect, the protective hood may be installed over electrical outlets or receptacles provided on a power pedestal. The power pedestal may be installed in outdoor areas subject to a wide range of weather conditions including moisture in the form of rain or snow, for example.
In an embodiment, the power pedestals may comprise mounting plate including a box to mount various types of outlets or receptacles therein. The mounting plate may be configured to receive various types of standard electrical outlets, and be mounted in a vertical or horizontal orientation depending on the mounting configuration. A protective hood may be mounted over each outlet or receptacle using a number of different mounting means including use of fasteners, adhesives, or mechanical engagement. Preferably, the protective hoods are removable such that the outlet may be serviced or the protective hoods may be replaced easily if damaged.
In an embodiment, when a plurality of protective hoods are mounted vertically, each of the protective hoods may optionally be installed in an overlapping configuration such that the top edge of a protective hood is covered bottom edge of a protective hood installed above. The uppermost protective hood may have its top edge covered by a pedestal lid, which at least partially over hangs the top of the pedestal on each side. Advantageously, moisture is directed away from all of the outlets, and each pedestal above may also protect the pedestal below.
In another embodiment, each protective hood is configured such that the aperture provided on the angled bottom surface includes a flange or lip extending outwardly to direct moisture around the aperture rather than dripping from its edge. Correspondingly, a flange or lip extending inwardly along the bottom edge of the aperture may also help direct moisture away from the edges of the aperture.
In another embodiment, each pedestal may be mounted to a pedestal base that is configured to provide sufficient strength to support the pedestal structure including all mounted hardware, but which pedestal base also includes one or more built in stress relief features such that the pedestal will break away from the base if the pedestal is accidentally struck, for example by a motor vehicle or trailer that is backing up in a drive way, parking lot, or an RV camp site at which the power pedestal is installed. In this embodiment, the protective hoods may also be configured to be deformable, such that the protective hoods can at least partially absorb the impact of the motor vehicle or trailer, and be readily replaced with another if damaged.
In another embodiment, the aperture in the protective hood is suitably large to provide sufficient ventilation for the one or more outlets covered by the protective hood. This allows the pedestal to dry after heavy precipitation, without trapping moisture in any part of the protective hood.
In another embodiment, a slight gap is provided between the power pedestal and an interchangeable pedestal base to improve ventilation to the cabinet, and prevents the elongate body 110 from collecting moisture at its base around the bottom of the power pedestal.
In another embodiment, the pedestal itself may include a ventilation grill which prevents moisture from entering the pedestal but at the same time allows air to circulate within the pedestal cabinet. The ventilation grill may be provided on two or more sides of the pedestal in order to promote airflow through the pedestal cabinet in order control moisture.
In this respect, before explaining at least one embodiment of the various improvements in more detail, it is to be understood that the present system and method is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The present system and method is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.
The present disclosure relates to a protective device for outdoor electrical outlets or receptacles, whether provided on outdoor walls or on power pedestals, and subjected to a wide range of weather conditions including variations in temperature, humidity, and precipitation. various improvements thereto.
In a first aspect, there is provided a protective device for an electrical outlet comprising an angled hood with at least one angled top surface, at least two side panels, and an angled bottom surface having an aperture suitably sized and shaped to receive a power cord from an electrical device. The aperture may also be suitably large to allow sufficient access to a person handling the electrical plug to insert or remove the plug from the outlet.
In a preferred embodiment, the top surface of the hood is angled, and extends to a suitable horizontal distance from the wall such that the hood substantially covers and protects the electrical outlet being covered. It will be appreciated, however, that the angle of the top surface of the hood, and the distance of the hood from the wall may be varied between any suitable range.
The top surface of the hood may extend to a suitable horizontal distance such the electrical outlet being covered is suitably protected from moisture, including rain and snow that may be directed towards the outlet at an angle. Thus, the electrical outlet is suitably protected even if access to the electrical outlet always remains open through the aperture in the angled bottom surface.
By adjusting the angle of the top surface of the hood, how far the hood extends horizontally, and the size of the aperture in the angled bottom surface, the hood may be adjusted for virtually any type and size of electrical outlet requiring protection.
The protective hood may be installed over electrical outlets or receptacles provided on a power pedestal. The power pedestals may be generally shaped as towers of different heights depending on the number of electrical outlets provided on one or more sides of the tower.
In an embodiment, the power pedestals may comprise mounting plate including a box to mount various types of outlets or receptacles therein. The mounting plate may be configured to receive various types of standard electrical outlets, and be mounted in a vertical or horizontal orientation depending on the mounting configuration. A protective hood may be mounted over each outlet or receptacle using a number of different mounting means including use of fasteners, adhesives, or mechanical engagement.
Preferably, the protective hoods are removable such that the outlet may be serviced or the protective hoods may be replaced easily if damaged.
In an embodiment, when a plurality of protective hoods are mounted vertically, each of the protective hoods may optionally be installed in an overlapping configuration such that the top edge of a protective hood is covered bottom edge or skirt of a protective hood installed above. The uppermost protective hood may have its top edge covered by a pedestal lid, which at least partially over hangs the top of the pedestal on each side.
In another embodiment, a plurality of protective hoods may be joined and formed as an integral piece to cover multiple outlets. This may allow multiple protective hoods to be installed or removed together such that multiple outlets may be accessed for service more easily.
In another embodiment, each protective hood is configured such that the aperture provided on the angled bottom surface includes a flange or lip extending outwardly to direct moisture around the aperture rather than dripping from its edge. Correspondingly, a flange or lip extending inwardly along the bottom edge of the aperture may also help direct moisture away from the edges of the aperture.
In another embodiment, the aperture in the protective hood is suitably large to provide sufficient ventilation for the one or more outlets covered by the protective hood. This allows the pedestal to dry after heavy precipitation, without trapping moisture in any part of the protective hood.
In another embodiment, the pedestal itself may include a ventilation grill which prevents moisture from entering the pedestal but at the same time allows air to circulate within the pedestal cabinet. The ventilation grill may be provided on two or more sides of the pedestal in order to promote airflow through the pedestal cabinet in order control moisture.
In another embodiment, each pedestal may be mounted to a pedestal base that is configured to provide sufficient strength to support the pedestal structure including all mounted hardware, but which pedestal base also includes one or more built in stress relief features such that the pedestal will break away from the base if the pedestal is accidentally struck, for example by a motor vehicle or trailer that is backing up in a drive way, parking lot, or an RV camp site at which the power pedestal is installed. In this embodiment, the protective hoods may also be configured to be deformable, such that the protective hoods can at least partially absorb the impact of the motor vehicle or trailer, and be readily replaced with another if damaged.
In this respect, before explaining at least one embodiment of the various improvements in more detail, it is to be understood that the present system and method is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The present system and method is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.
Illustrative embodiments of the invention will now be described with reference to the drawings.
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In an embodiment, the angle A formed between angled top surface 102 and each bottom surface 104 (as further discussed below with reference to
For angle A, it has been found that a range of angles between about 45 degrees and about 50 degrees minimizes the collection of rain or snow on the top surface, allowing virtually all moisture on the angled top surface 102 to be directed away from the protected electrical outlet.
In the illustrative embodiment shown in
Still referring to
In another embodiment, aperture 108 in the bottom surface 104 is suitably shaped and sized to receive various devices. As the bottom surface 104 is angled, in this example at 45 degrees from horizontal, the aperture 108 must accommodate various devices inserted at an angle relative to the bottom surface 104.
In another embodiment, aperture 108 in the bottom surface 104 is suitably shaped and sized to receive various cutout plates, as detailed further below with reference to
In another embodiment, in order to provide adequate drainage, hood 100 may include suitably sized drainage holes in each bottom surface 104, and a non-gasketed bottom lip to allow moisture to drain below the hood 100.
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Advantageously, the angled hood 100 of the present invention may be readily fitted over existing outdoor electrical outlets, and may be sized to be compatible with any size of electrical box. This includes conventional outdoor household electrical outlets with flush wall mount receptacle boxes, or electrical outlets with cast outlet boxes provided on outdoor pedestals or charging stations for electrical vehicles, for example. The hood 100 may be mounted by simply removing the existing device outlet, screw mounting an angle adapter, and reinstalling the electrical outlet into position.
In an illustrative embodiment, the angled hood 100 may be made from machine formed galvanized steel. Once formed into shape, the angled hood 100 may be painted using a suitable power coat paint to protect the surface from rusting and damage. Alternatively, rather than using steel, an insulative formable or moldable material may also be used, such as fibreglass, or injection molded plastic.
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In a preferred embodiment, the power pedestal has a generally smooth surface, with no visible mounting bolts or a flanged base which may trap moisture and may be prone to rust. One or more of the front, back or side panels of the elongate body 1410 may be removable to provide access to the panel.
As shown, a pedestal lid 1420 extends over all sides of the elongate body 1410. The lid 1420 is maintained in place by a fastener 1422, and may be formed from a soft material with smooth edges to prevent cuts from scraping against edges or corners. The top surface of the lid 1420 may also be suitably sloped by raising the center and to help drain moisture away.
In another embodiment, one or more receptacles 1430 are provided on at least one side of the elongate body 1410, for example in a standard NEMA 5-15R configuration. However, it will be appreciated that various types of receptacles may be made available, including GFCI type receptacles to prevent shocks if the receptacles are inadvertently exposed to moisture. Furthermore, a suitable light source and photo-cell to turn on the light source at dusk may be provided near the receptacles to show their location and make insertion of power cords easier.
Each receptacle 1430 may be covered by suitable self-closing covers, made of thermoplastic for example. One or more removable front access covers may be used to cover an opening on one of the sides of the power pedestal 1400A.
Shown in
In an embodiment, the pedestal base 1400B, 1400C may be constructed from galvanized steel, and mounted to the elongate body 1410 by suitable galvanized screws. Preferably, the elongate body 1410 is mounted in the base 1400B, 1400C such that the elongate body 1410 is slightly above (e.g. ¼ inch) the ground or mounting platform. This slight gap between the elongate body 1410 and the mounting surface significantly improves ventilation to the cabinet, and prevents the elongate body 1410 from collecting moisture at its base around the bottom of the power pedestal.
Still referring to
In an embodiment, the stress relief feature may be one or more weakened sections of the interchangeable pedestal base designed to allow the power pedestal to break away from the base with minimal damage to the power pedestal. For example, a weakened section may be formed by utilizing a material with a lower threshold for deformation, such as a thinner sheet metal, or a plastic material. Alternatively, a partial cutout may be formed into a section of the pedestal base to form a designed point of failure.
This break away feature sacrifices a relatively low cost part, such as the interchangeable pedestal base or the mounting hardware, to minimize damage on the power pedestal with its more costly parts and components.
In a similar manner, protective angled hoods mounted on the power pedestal may also be configured to be deformable, such that the protective hoods can at least partially absorb the impact of the motor vehicle or trailer, and be readily replaced with a replacement hood if damaged. On the sides of the power pedestal that do not have protective angled hoods mounted, a sacrificial plate or resilient bumper guard may be provided to protect the power pedestal from damage.
In another embodiment, the power pedestal has a profile whereby its base is not extended, but rather the same size as the body all the way to the base. The lack of any extending flanges also helps avoid collection of moisture near the base to prevent corrosion.
The power pedestal is also suitably sized such that one or more receptacles may be provided at a suitable height for access. The one or more receptacles may be covered by a suitable receptacle cover to protect the receptacle from moisture. Each receptacle may be separately covered.
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In this embodiment, the base 1700B may have a feed through aperture which allows electrical wires fed through the tubular rail and through the base 1700B of the power pedestal 1700A.
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As will be understood, the above illustrative embodiments may be implemented in various configurations.
Referring to
Thus, in an aspect, there is provided a protective device for an outdoor electrical outlet, comprising: at least one angled top surface; at least two side panels adjoining the top surface; and an angled bottom surface having an aperture.
In an embodiment, the angled top surface is angled downwardly to extend to a sufficient horizontal distance from the wall, such that the angled top surface substantially covers and protects the electrical outlet from the top.
In another embodiment, the angled top surface joins the angled bottom surface at an apex, and wherein an angle A formed between the angled top surface and the angled bottom surface is between about 45 degrees and 90 degrees.
In another embodiment, the aperture on the angled bottom surface is suitably sized and shaped to receive a power cord from an electrical device.
In another embodiment, the two side panels adjoining the top surface are further adjoined to edges of the angled bottom surface.
In another embodiment, the protective device is adapted to be installed over electrical outlets or receptacles provided on a power pedestal.
In another embodiment, the protective device is adapted to be deformable and replaceable upon receiving any damage to the protective device.
In another embodiment, the protective device is formed from sheet metal that is folded to form each section of the protective device.
In another embodiment, the protective device is formed from an insulative formable or moldable material, such as fibreglass or injection molded plastic.
In another embodiment, the bottom end of the protective device is adapted to provide one or more moisture drainage openings to allow moisture to drain from the protective device.
In another aspect, there is provided a power pedestal adapted to receive a protective device for each electrical outlet provided on the power pedestal, the protective device comprising: at least one angled top surface; at least two side panels adjoining the top surface; and an angled bottom surface having an aperture.
In an embodiment, the power pedestal is further adapted to mount a plurality of protective devices over a plurality of electrical outlets arranged vertically or horizontally.
In another embodiment, the power pedestal is further adapted to receive a cutout back plate for mounting one or more different types of standard electrical boxes.
In another embodiment, the power pedestal further comprises an interchangeable pedestal base adapted to mount the power pedestal, and wherein the power pedestal base includes at least one built-in stress relief feature adapted to allow the power pedestal to break-away from the pedestal base if an external mechanical stress on the pedestal base exceeds a predetermined breaking point.
In another embodiment, the at least one built-in stress relief feature comprises a material with a lower threshold for deformation, or a partial cutout of a section of the interchangeable pedestal base forming a designed point of failure.
In another embodiment, the interchangeable pedestal base is adapted to mount the power pedestal to a base with at least a minimum clearance gap such that the power pedestal is ventilated from below.
In another embodiment, the power pedestal further comprises one or more additional ventilation grills on one or more sides of the power pedestal cabinet.
In another embodiment, the power pedestal further comprises a circuit breaker to interrupt electrical current to each outlet if a ground fault is detected.
In another embodiment, the angled top surface is angled downwardly to extend to a sufficient horizontal distance from the wall, such that the angled top surface substantially covers and protects the electrical outlet from the top.
In another embodiment, the angled top surface joins the angled bottom surface at an apex, and wherein an angle A formed between the angled top surface and the angled bottom surface is between about 45 degrees and 90 degrees.
It will be understood that the above embodiments are illustrative and are not meant to be limiting. Therefore, the following claims should be given their broadest interpretation consistent with the present disclosure.
Number | Date | Country | |
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61893524 | Oct 2013 | US |