DESC:FIELD OF THE INVENTION

The present disclosure relates to an electric plug assembly having a rotation regulator.

BACKGROUND

An electric plug assembly is a device that establishes electrical contact between electric equipment and a source, such as a socket. The electric plug assembly includes a housing and an electric pin that is partially housed in the housing and is coupled to the wires of the electric equipment. Moreover, the pin acts as a connector to complete the electric circuit. The electric pin can either be a live pin or a neutral pin in case of alternating current or can be a positive terminal and negative terminal in case of direct current. The electric pin can also be a ground or earth pin. The electric pin includes a projection part that protrudes from the electric plug assembly and a coupling part that resides within the electric plug assembly and couples to the electric wire via fasteners.

There are various limitations associated with the current design of the electric plug assembly. For example, the plug pin tends to rotate with respect to the plug housing after prolonged use thereby loosening the plug pin. As a result, the loose plug pin tends to dislodge from the electric plug resulting in the failure of the electric plug. One way to mitigate this issue is by providing a tight tolerance between the plug pin and a plug opening inside which the plug pin is installed. Such a high tolerance prevents the rotation of the plug. However, high tolerance causes high friction between the metal plug pin that cuts the plastic housing thereby enlarging the plug opening and resulting in the loosening of the plug pin. Moreover, providing high tolerance warrants a high precision manufacturing process which increases the overall cost of the manufacturing of the electric plug. Another way to mitigate this issue is to sandwich the coupling part between a front plate and a cover plate of the electric plug. In this case, too, the sandwiched tip of the coupling part tends to cut through the backplate resulting in the loosening of the plug pin.

SUMMARY

This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the invention.

The present disclosure relates an electric plug assembly with a rotation regulator for electric pins of the electric plug assembly. The rotation regulator aligns the electric pins and prevents the rotation of the electric pins with respect to the electric plug assembly.

In an embodiment, an electric plug assembly is disclosed. The electric plug assembly includes a base plate adapted to receive wires and a cover plate having a plurality of plug openings and is coupled to the base plate to form a housing. The electric plug assembly also includes a plug pin adapted to be inserted in one of the plurality of plug openings. The plug pin includes a root part disposed in the housing and a main part integrated with the root part. The main part is formed above the root part and is adapted to extend out from the housing. The electric plug assembly also includes a rotation regulator disposed around the plurality of plug openings in the housing and the rotation regulator is adapted to prevent rotation of the root part with respect to the cover plate.

According to the present disclosure, the rotation regulator is shaped and sized to arrest the rotation of the plug pin without the need for tight tolerances thereby making the manufacturing of the electric plug assembly simpler. Moreover, the absence of tight tolerances also reduces the chances of wear of the plug opening and loosening of the plug pin thereby enhancing the operational life of the electric plug assembly.

To further clarify advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the present invention will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

Figure 1 illustrates different views of an electric plug assembly, according to an embodiment of the present disclosure;
Figure 2 illustrates an exploded view of the electric plug assembly, according to an embodiment of the present disclosure;
Figure 3 illustrates a perspective view of a cover plate showing a rotation regulator of the electric plug assembly, according to an embodiment of the present disclosure;
Figure 4 illustrates a back view of the cover plate showing the rotation regulator of the electric plug assembly, according to an embodiment of the present disclosure; and
Figure 5 illustrates a front view of the cover plate showing the plug openings of the electric plug assembly, according to an embodiment of the present disclosure.

Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

DETAILED DESCRIPTION OF FIGURES

For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skilled in the art to which invention belongs. The system and examples provided herein are illustrative only and not intended to be limiting.

For example, the term “some” as used herein may be understood as “none” or “one” or “more than one” or “all.” Therefore, the terms “none,” “one,” “more than one,” “more than one, but not all” or “all” would fall under the definition of “some.” It should be appreciated by a person skilled in the art that the terminology and structure employed herein is for describing, teaching, and illuminating some embodiments and their specific features and elements and therefore, should not be construed to limit, restrict, or reduce the spirit and scope of the present disclosure in any way.

For example, any terms used herein such as, “includes,” “comprises,” “has,” “consists,” and similar grammatical variants do not specify an exact limitation or restriction, and certainly do not exclude the possible addition of one or more features or elements, unless otherwise stated. Further, such terms must not be taken to exclude the possible removal of one or more of the listed features and elements, unless otherwise stated, for example, by using the limiting language including, but not limited to, “must comprise” or “needs to include.”

Whether or not a certain feature or element was limited to being used only once, it may still be referred to as “one or more features” or “one or more elements” or “at least one feature” or “at least one element.” Furthermore, the use of the terms “one or more” or “at least one” feature or element do not preclude there being none of that feature or element, unless otherwise specified by limiting language including, but not limited to, “there needs to be one or more...” or “one or more elements is required.”

Unless otherwise defined, all terms and especially any technical and/or scientific terms, used herein may be taken to have the same meaning as commonly understood by a person ordinarily skilled in the art.

Reference is made herein to some “embodiments.” It should be understood that an embodiment is an example of a possible implementation of any features and/or elements of the present disclosure. Some embodiments have been described for the purpose of explaining one or more of the potential ways in which the specific features and/or elements of the proposed disclosure fulfil the requirements of uniqueness, utility, and non-obviousness.

Use of the phrases and/or terms including, but not limited to, “a first embodiment,” “a further embodiment,” “an alternate embodiment,” “one embodiment,” “an embodiment,” “multiple embodiments,” “some embodiments,” “other embodiments,” “further embodiment”, “furthermore embodiment”, “additional embodiment” or other variants thereof do not necessarily refer to the same embodiments. Unless otherwise specified, one or more particular features and/or elements described in connection with one or more embodiments may be found in one embodiment, or may be found in more than one embodiment, or may be found in all embodiments, or may be found in no embodiments. Although one or more features and/or elements may be described herein in the context of only a single embodiment, or in the context of more than one embodiment, or in the context of all embodiments, the features and/or elements may instead be provided separately or in any appropriate combination or not at all. Conversely, any features and/or elements described in the context of separate embodiments may alternatively be realized as existing together in the context of a single embodiment.

Any particular and all details set forth herein are used in the context of some embodiments and therefore should not necessarily be taken as limiting factors to the proposed disclosure.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

For the sake of clarity, the first digit of a reference numeral of each component of the present disclosure is indicative of the Figure number, in which the corresponding component is shown. For example, reference numerals starting with digit “1” are shown at least in Figure 1. Similarly, reference numerals starting with digit “2” are shown at least in Figure 2.

Figures 1 and 2 illustrate an electric plug assembly 100, according to an embodiment of the present disclosure. Specifically, Figure 1 illustrates shows a front view (A), a side view (B), a front perspective view (C), and a back perspective view (D), and a front perspective view (D) of the electric plug assembly 100. Further, Figure 2 illustrates an exploded view of the electric plug assembly 100. The electric plug assembly 100 may be used to supply electric current to electrical equipment, such as a table fan or a refrigerator. The electric plug assembly 100 can be designed to have different rated capacities, such as a 6A rating for small electrical equipment, such as a table fan or a 16A rating for heavy electrical equipment, such as a refrigerator. The electric plug assembly 100 may receive electric wires from the electrical equipment and may be adapted to insert into an electric socket to establish electric contact with the electric socket. The electric plug assembly 100 may include, but is not limited to, a base plate 102, a cover plate 104, a plurality of plug pins 106, and a sleeve 108, details of which will be explained later.

Referring now to Figure 2, the base plate 102 may form a major part of the electric plug assembly 100 by size. The base plate 102 may include a pair of the housing walls 110 that extends from a base of the base plate 102. The housing walls 110 may couple to the cover plate and cover the components mounted to either the cover plate 104 or the base plate 102. In addition, the housing walls 110 may include depressions 112 that are sized and profiled to enable an operator to grab and hold the electric plug assembly 100 to engage and disengage the electric socket.

In one example, the cover plate 104 may be of similar size as the base plate 102. The cover plate 104 may include an outer surface 114 and an inner surface 116 opposite to the front face, such that the outer surface 114 may abut the electric socket. On the other hand, the inner surface 116 may include a cavity profile 118 that are adapted to receive the housing walls 110 to form a housing. The housing may be understood as a volume inside the electric plug assembly 100 in which the components may be housed. In one example, the housing walls 110 and may have a cut-out portion and while the cavity profile 118 has a wall that forms an opening in which the sleeve 108 can be inserted. The sleeve 108 is configured to provide access to the electrical wires into the housing. In addition, the sleeve 108 provides a path to guide the electric wire to the housing.

In one example, the electric plug assembly 100 may include a plate 120 that may be mounted to the inner surface 116 and proximate to the opening. The plate 120 may be configured to secure a portion of the electric wires within the housing. The plate 120 can be made of fibre material and can be secured to a pair of fastening points 122 on the inner surface 116.

According to the present disclosure, the plug pin 106 is a single piece manufactured component and may include a root part 126 and a main part 128. The root part 126 may be disposed in the housing while the main part 128 may extend through the housing and out from the plug openings 130 of the cover plate 104 and may be adapted be inserted in a socket. In one example, one of the plug pin 106A is a ground pin while another plug pin 106B is a live pin. Further, yet another plug pin 106C is a neutral pin. Further, the main root part 126 may have a cuboid-shaped body with the square-shaped cross-section. Further, the plug opening 130 may also be shaped as per the cross-section of the root part 126. On the other hand, the main part 128 may have a cylindrical body with a circular cross-section.

In one example, the base plate 102 and the cover plate 104 may be secured to each other using fasteners 124. Further, the cover plate 104 may include additional fastening points 122 to receive the fasteners 124. Although not visible, the base plate 102 may also include fastening points concentric to the fastening points 122 on the cover plate 104 and is adapted to receive a portion of the fasteners 124. Although the present illustration shows four fasteners 124, a greater or lesser number of fasteners 124 may also be used.

In one example, the cover plate 104 may include a wall 138 at one end of the cover plate 104. The wall 138 may have a hemispherical opening 140 while on the other hand, the base plate has a hemispherical cut-out that together forms an opening in which the sleeve 108 may be inserted.

According to the present disclosure, the electric plug assembly 100 may include a rotation regulator 132 that arrests the rotation of the plug pin 106 with respect to the cover plate 104. Details of the rotation regulator 132 is explained with respect to Figure 2 in conjunction with Figures 3, 4, and 5 that shows various views of the cover plate 104. Specifically, Figure 3 illustrates a perspective view of a cover plate showing a rotation regulator of the electric plug assembly 100. Further, Figure 4 illustrates a back view of the cover plate showing the rotation regulator while Figure 5 illustrates a front view of the cover plate showing the plug openings around which the rotation regulator 132 is disposed.

The rotation regulator 132 is disposed around each of the plurality of plug openings 132. Further, the rotation regulator 132 aligns the plug pin 106 orthogonal to the cover plate 104. The rotation regulator 132 may include a plurality of walls 134 that forms a square-shaped casing therebetween. The walls 134 may extend orthogonal to the inner surface 112 and may cover portions of the root part 126 (shown in Figure 2). In one example, the root part 126 may extend in the casing between the plurality of walls 134 of the rotation regulator 132. The rotation regulator 132 is sized as per the size and shape of the root part 126. For example, the rotation regulator 132 is also square-shaped and is sized to accommodate the square-shaped root part 126. The positioning of the walls 134 is such that the side faces of the root part 126 abut the walls 134 and the walls 134 prevents movement of the faces of the root part 126 relative to the walls 134. In other words, the walls 134 acts as a lock for the root part 126 to prevent the rotation of the root part 126. In one example, the walls 134 are supported by reinforcements 136 that support the walls 134 to prevent the rotation of the root part 126.

According to the present disclosure, the walls 134 of the rotation regulator 132 eliminates a need for tight tolerances to secure the plug pin 106 in the housing thereby making the manufacturing of the electric plug assembly 100 simpler. Moreover, alleviation of tight tolerance also reduces the instance of wear and tear of the plug openings 130.

While specific language has been used to describe the present disclosure, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. ,CLAIMS:WE CLAIM:

1. An electric plug assembly (100) comprising:
a base plate (102) adapted to receive electric wires;
a cover plate (104) coupled to the base plate (102) to form a housing, the cover plate (104) comprising a plurality of plug openings (130);
a rotation regulator (132) disposed around the plurality of plug openings (130) in the housing; and
a plug pin (106) adapted to be inserted in one of the plurality of plug openings (130), the plug pin (106) comprising:
a root part (126) disposed in the housing; and
a main part (128) formed above the root part (126) and adapted to extend out of the housing to be inserted in a socket,
wherein the rotation regulator (132) is adapted to prevent rotation of the root part (126) with respect to the cover plate (104).

2. The electric plug assembly (100) as claimed in claim 1, wherein the rotation regulator (132) aligns the plug pin (106) orthogonal to the cover plate (104).

3. The electric plug assembly (100) as claimed in claim 1, wherein the root part (126) has a square-shaped cross-section.

4. The electric plug assembly (100) as claimed in claim 3, wherein the rotation regulator (132) includes a plurality of walls (136) forming a square-shaped casing around the plurality of plug openings (130), wherein the root part (126) extends between the plurality of walls (136) of the rotation regulator (132).

5. The electric plug assembly (100) as claimed in claim 1, wherein the cover plate (104) includes a wall (138) with a hemispherical opening (140) and the base plate (102) includes a hemispherical cut-out, wherein the hemispherical opening (140) and the hemispherical cut-out form an opening adapted to provide access to the housing.

6. The electric plug assembly (100) as claimed in claim 1, wherein the at least one plug pin (106) is one of a live pin (106B), a neutral pin (106C), and a ground pin (106A).

7. The electric plug assembly (100) as claimed in claim 1, including a pair of fasteners (122) to secure the base plate (102) to the cover plate (104).

8. The electric plug assembly (100) as claimed in claim 1, wherein the plug opening is shaped as per the cross-section of the root part (126).

9. The electric plug assembly (100) as claimed in claim 5, comprising a sleeve (108) adapted to inserted at the opening and adapted to provide a path to guide the electric wire to the housing.

10. The electric plug assembly (100) as claimed in claim 9, comprising a plate (120) mounted on the inner surface of the cover plate (104) and proximate to the opening, wherein the plate is adapted to secure a portion of the electric wires within the housing.