Electrical plug

Abstract

The present invention relates to an electrical plug in which wiring is aligned by guiding a pad portion, and it is possible to provide a planar electrical plug capable of easily aligning a first wiring to a third wiring even if a structure of a protruding pin is not included in a lower mold.

Description

TECHNICAL FIELD

[0001] The present invention relates to an electric plug, and more particularly, to an electric plug capable of maximizing the proximity of furniture or home appliances to a wall surface and improving the space utilization. BACKGROUND

[0002] An electric plug is an electrical wiring device installed at the end of a power cord of an electrical appliance for insertion into a socket for power use. In general, power of a home or factory is delivered through a socket, and after the plug of an electrical appliance is inserted into the socket, the electrical appliance is powered and operated.

[0003] At this time, the connection part of the plug and the socket, i.e., the plug body on which two pins (connection pins) connected to a cord are fixed, is inserted and fixed in the socket hole to supply power to the electrical appliance.

[0004] In other words, the general structure of the above-described plug is composed of a plug body and a pair of connection pins provided at the front of the plug body. Through this structure, the connection pins on the plug body are inserted into the connection holes on the socket, thereby supplying power to the home appliance.

[0005] At this time, the above-described connection pins are connected through a cord connected to the electrical appliance, so that the power obtained from the connection pins can be transmitted to the electrical appliance through the cord.

[0006] On the other hand, the above-described plug can be roughly classified into two types according to its shape: the first type is a "straight type plug" in which the connection pins and the cord are arranged in a straight line, and the second type is a "right angle type plug" in which the connection pins and the cord are arranged at a right angle.

[0007] Figure 1 is a photograph of a conventional right angle type plug.

[0008] Reference Figure 1 The conventional right angle type plug (10) includes a plug body (20), a connection pin portion (30) protruding in a first direction of the plug body (20), and a cord portion (40) provided in a second direction of the plug body (20).

[0009] That is, the above-described connection pin portion (30) is connected to a cord (not shown) located in the above-described cord portion (40), and the power supplied from the above-described connection pin portion (30) can be supplied to the electrical appliance through the cord of the above-described cord portion (40). At this time, as shown in Figure 1 , since the above-described connection pin portion (30) and the above-described cord portion (40) are arranged at a right angle, the plug of Figure 1 can be defined as a right angle type plug.

[0010] However, in the present invention, for convenience of explanation, the above-mentioned plug is defined as a "straight type plug" and a "right angle type plug", but the definition of the "right angle type" is to define the angle formed by the above-mentioned connection pin portion and the above-mentioned wiring portion, and the angle formed by the above-mentioned connection pin portion and the above-mentioned wiring portion can be an acute angle or an obtuse angle, in the present invention, the above-mentioned "right angle type plug" can be defined as a "non-straight type plug".

[0011] That is, assuming that the angle formed by the above-mentioned connection pin portion (30) and the above-mentioned wiring portion (40) in the above-mentioned straight type plug is 0 degrees, the right angle type plug according to the present invention is defined as a non-straight type plug, so that the angle formed by the above-mentioned connection pin portion (30) and the above-mentioned wiring portion (40) can be a right angle, an acute angle or an obtuse angle.

[0012] On the other hand, as shown in Figure 1 The existing right angle type plug (10) can also include a reinforcing rib (50) inserted into the above-mentioned wiring portion (40) and disposed at the other end of the above-mentioned plug body (20), which is well known in the art, so specific description is omitted below, and in the present invention, the presence or absence of the reinforcing rib is not limited.

[0013] However, such an existing right angle type plug has a structure in which the plug body protrudes to the outside of the socket when connected to the socket, so there is a problem that it is not possible to make the home appliance or furniture most closely adhere to the wall.

[0014] That is, since it is necessary to secure a space caused by the protruding portion of the plug body connected to the socket, it is not possible to make the home appliance or furniture most closely adhere to the wall. Therefore, research and development are required to minimize the protruding portion of the plug connected to the socket provided on the wall, so that the planar plug which enables the furniture or home appliance to most closely adhere to the wall and improve the space utilization rate.

[0015] Therefore, the present inventors have proposed a planar electrical plug in Korean Patent Publication No. 10-2022-0015540.

[0016] More specifically, in the above-mentioned Korean Patent Publication No. 10-2022-0015540, in realizing the planar electrical plug, the electrical plug includes a first wiring connected to a first connection pin portion, a second wiring connected to a second connection pin portion, and a third wiring connected to a grounding portion, and it is important that the first wiring, the second wiring, and the third wiring are arranged in a straight line with respect to their respective cross sections, for example, in the area of the first handle body portion.

[0017] Accordingly, to achieve this, in the above-mentioned Korean published patent 10-2022-0015540, the lower mold for manufacturing the electrical plug includes: a plug main body portion injection lower mold portion; and a plug auxiliary body portion injection lower mold portion provided in succession to the plug main body portion injection lower mold portion, wherein the plug auxiliary body portion injection lower mold portion includes: a first protruding pin located in a first area; and a second protruding pin located in a second area and provided in length direction apart from the first protruding pin, so that the first, second, and third wires can be aligned in a straight line with respect to each cross section, for example, in the area of the first handle portion body portion.

[0018] However, in the case of the above-mentioned Korean published patent 10-2022-0015540, since the wires are aligned by the first and second protruding pins as described above, the lower mold must include the first and second protruding pins, and due to the presence of the first and second protruding pins, it becomes slightly difficult to design the lower mold. SUMMARY TECHNICAL PROBLEM

[0019] The problem to be solved by the present application is to provide a planar type electrical plug that enables furniture or home appliances to be maximally close to a wall, thereby improving space utilization, by minimizing the protruding portion of the plug connected to the socket provided on the wall.

[0020] Further, the object of the present application is to provide a planar type electrical plug that can easily align the first to third wires even in a structure in which the protruding pin is not included in the lower mold.

[0021] The object of the present application is not limited to the above-mentioned object, and other unmentioned objects will be clearly understood by those skilled in the art from the following description. TECHNICAL SOLUTION

[0022] To solve the above problems, the present application provides an electrical plug, wherein the electrical plug includes: a plug main body portion; a connection pin portion exposed to a first side direction from the plug main body portion; a plug auxiliary body portion extending to a second side direction from the plug main body portion; and a wiring portion provided continuously with the plug auxiliary body portion, the connection pin portion includes: a first connection pin portion exposed to the first side direction from the plug main body portion; and a second connection pin portion exposed to the first side direction from the plug main body portion and provided at a certain interval apart from the first connection pin portion, and an inside of the plug main body portion includes a ground portion, the electrical plug includes: a first wiring connected with the first connection pin portion; a second wiring connected with the second connection pin portion; and a third wiring connected with the ground portion, the plug auxiliary body portion includes: a guide pad portion for guiding the first wiring, the second wiring, and the third wiring in one direction; and a first resin layer covering the guide pad portion, the first wiring, the second wiring, and the third wiring.

[0023] Further, the present application also provides an electrical plug, wherein the guide pad portion includes: a first substrate including an upper surface and a lower surface opposite to the upper surface; an upper first groove provided on the upper surface side of the first substrate, on one side in a width direction of the guide pad portion, and in a length direction of the guide pad portion; an upper second groove provided on the upper surface side of the first substrate, on the other side in the width direction of the guide pad portion, and in the length direction of the guide pad portion; and an upper third groove provided between the upper first groove and the upper second groove, at a certain interval apart from the upper first groove and the upper second groove respectively, and in the length direction of the guide pad portion, wherein the first wiring is provided in and guided by the upper first groove, the second wiring is provided in and guided by the upper second groove, and the third wiring is provided in and guided by the upper third groove.

[0024] Further, the present application also provides an electrical plug, wherein the guide pad portion includes: an upper first protrusion provided at a connection between the upper first groove and the upper third groove, and in the length direction of the guide pad portion; an upper second protrusion provided at a certain interval apart from the upper first protrusion, at a connection between the upper second groove and the upper third groove, and in the length direction of the guide pad portion; an upper third protrusion provided adjacent to the upper first groove, at an edge on one side in the width direction of the guide pad portion, and in the length direction of the guide pad portion; and an upper fourth protrusion provided adjacent to the upper second groove, at an edge on the other side in the width direction of the guide pad portion, and in the length direction of the guide pad portion.

[0025] Further, the present application provides an electrical plug, wherein the upper first protrusion includes: a first through-hole provided in a certain region of the upper first protrusion, provided in a height direction of the guide pad portion, and penetrating from an upper surface of the first substrate to a lower surface of the first substrate, the upper second protrusion includes: a second through-hole provided in a certain region of the upper second protrusion, provided in the height direction of the guide pad portion, and penetrating from the upper surface of the first substrate to the lower surface of the first substrate, the upper third protrusion includes: a third through-hole provided in a certain region of the upper third protrusion, provided in the height direction of the guide pad portion, and penetrating from the upper surface of the first substrate to the lower surface of the first substrate, and the upper fourth protrusion includes: a fourth through-hole provided in a certain region of the upper fourth protrusion, provided in the height direction of the guide pad portion, and penetrating from the upper surface of the first substrate to the lower surface of the first substrate.

[0026] Further, the present application provides an electrical plug, wherein the guide pad portion further includes: a lower first groove provided on a lower surface side of the first substrate and in a length direction of the guide pad portion.

[0027] Further, the present application provides an electrical plug, wherein the guide pad portion includes: an upper flat pad portion provided on an upper portion in a height direction of the guide pad portion and in a length direction of the guide pad portion, a lower flat pad portion provided on a lower portion in the height direction of the guide pad portion and in the length direction of the guide pad portion, a first side semicircular pad portion provided on one side in a width direction of the guide pad portion, continuously provided on one side of the upper flat pad portion and on one side of the lower flat pad portion, and in the length direction of the guide pad portion, and having a semicircular cross section, and a second side semicircular pad portion provided on the other side in the width direction of the guide pad portion, continuously provided on the other side of the upper flat pad portion and on the other side of the lower flat pad portion, and in the length direction of the guide pad portion, and having a semicircular cross section, wherein the guide pad portion includes a first space portion formed by the upper flat pad portion, the first side semicircular pad portion, the lower flat pad portion, and the second side semicircular pad portion being continuously provided, and the first wire, the second wire, and the third wire are provided in the first space portion.

[0028] Further, the present application provides an electric plug in which the inner surfaces of the upper flat pad portion, the first side semi-circular pad portion, the lower flat pad portion, and the second side semi-circular pad portion include adhesive portions, and the first wire, the second wire, and the third wire are adhered to the inner surfaces of the upper flat pad portion, the first side semi-circular pad portion, the lower flat pad portion, and the second side semi-circular pad portion by the adhesive portions when the first wire, the second wire, and the third wire are disposed in the first space portion.

[0029] Further, the present application provides an electric plug in which the first wire is adhered to the inner surface of the first side semi-circular pad portion, the second wire is adhered to the inner surface of the second side semi-circular pad portion, and the third wire is adhered to the inner surface of the upper flat pad portion and the inner surface of the lower flat pad portion.

[0030] Further, the present application provides an electric plug in which the material of the first resin layer is PVC resin, ABS resin, or PC resin, and the material of the guide pad portion is PVC resin, ABS resin, or PC resin.

[0031] Further, the present application provides an electric plug in which the electric plug includes a plug main body portion, a connection plug pin portion exposed to a first side direction from the plug main body portion, a plug auxiliary body portion extended to a second side direction from the plug main body portion, and a wire portion disposed continuously with the plug auxiliary body portion, the connection plug pin portion includes a first connection plug pin portion exposed to the first side direction from the plug main body portion, and a second connection plug pin portion exposed to the first side direction from the plug main body portion and disposed at a certain interval apart from the first connection plug pin portion, and an inside of the plug main body portion includes a ground portion, the electric plug includes a first wire connected with the first connection plug pin portion, a second wire connected with the second connection plug pin portion, and a third wire connected with the ground portion, and the plug auxiliary body portion includes a guide holding portion disposed in an inside of the plug auxiliary body portion for guiding the first wire to the third wire in one direction, including a space portion for insertion of the first wire to the third wire.

[0032] Further, the present application provides an electric plug in which the guide holding portion includes an upper support plate extended and disposed in a length direction, a lower support plate extended and disposed in a length direction at a certain interval apart from the upper support plate in a height direction and located in a region corresponding to the upper support plate, and a side support plate connecting a width direction one end of the upper support plate and a width direction one end of the lower support plate and extended and disposed in a length direction.

[0033] Further, the present application provides an electrical plug in which a width direction one side end of the side support plate is continuously provided with a width direction one side end of the upper support plate, and a width direction other side end of the side support plate is continuously provided with a width direction one side end of the lower support plate, and the upper support plate, the lower support plate and the side support plate are provided extending in a length direction, so that the guide holding portion has a "L" shaped cross sectional structure.

[0034] Further, the present application provides an electrical plug in which the guide holding portion includes the space portion formed by the upper support plate and the lower support plate being spaced in a height direction.

[0035] Further, the present application provides an electrical plug in which the plug auxiliary body portion includes a lower first groove portion in a first region of a lower portion of the plug auxiliary body portion, wherein the lower first groove portion includes a lower first-1 groove portion at a length direction one side end of the plug auxiliary body portion, and a lower first-2 groove portion spaced apart from the lower first-1 groove portion and at a length direction other side end of the plug auxiliary body portion.

[0036] Further, the present application provides an electrical plug in which the plug auxiliary body portion includes a lower second groove portion in a second region of the lower portion of the plug auxiliary body portion, wherein the lower second groove portion includes a lower second-1 groove portion provided between the lower first-1 groove portion and the lower first-2 groove portion and at a length direction one side of the plug auxiliary body portion, and a lower second-2 groove portion spaced apart from the lower second-1 groove portion and provided between the lower first-1 groove portion and the lower first-2 groove portion and at a length direction other side of the plug auxiliary body portion.

[0037] Further, the present application provides an electrical plug in which the plug auxiliary body portion includes an upper groove portion in a first region of an upper portion of the plug auxiliary body portion, wherein the upper groove portion includes an upper first groove portion at a length direction one side end of the plug auxiliary body portion, and an upper second groove portion spaced apart from the upper first groove portion and at a length direction other side end of the plug auxiliary body portion.

[0038] Inventive Effects According to the present application, a planar electrical plug can be provided, which can maximize the adhesion of furniture or home appliances to a wall, and improve the space utilization.

[0039] ​Further, in the present application, by guiding the pad portion to align the wires, even in a structure in which the protruding pin is not included in the lower mold, a planar type electric plug capable of easily aligning the first to third wires can be provided.

[0040] Further, in the present application, by guiding the pad portion to align the wires, even in a structure in which the protruding pin is not included in the lower mold, a planar type electric plug capable of easily aligning the first to third wires can be provided.

[0041] Further, in the present application, when the first wire, the second wire, and the third wire are inserted into the guide holding portion, the lower surface of the guide holding portion is supported by the lower protruding pin, and thus the lower surface of the guide holding portion can be kept at a distance from the inner surface of the lower mold portion for injection molding of the plug auxiliary body portion.

[0042] Also, in the present application, when the first wire, the second wire, and the third wire are inserted into the guide holding portion, the upper surface of the guide holding portion is supported by the upper protruding pin, and thus the upper surface of the guide holding portion can be kept at a distance from the inner surface of the upper mold portion for injection molding of the plug auxiliary body portion.

[0043] Finally, in the present application, when the first wire, the second wire, and the third wire are inserted into the guide holding portion, the lower surface of the guide holding portion is supported by the protruding pin, and the side surface of the guide holding portion is supported by the first guide pin and the second guide pin, and thus the guide holding portion can be prevented from being detached from the width direction of the lower mold. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a photograph of a conventional right angle type plug.

[0045] Figure 2 is a perspective view of an electric plug of the present application, Figure 3 is a bottom view thereof, Figure 4 is a front view thereof.

[0046] Figure 5 is a schematic view of a mold for manufacturing the electric plug of the present application.

[0047] Figure 6 is a perspective view of a guide pad portion of a first embodiment of the present application, Figure 7 is a side view thereof, Figure 8 is a view of a state in which the first wire is disposed in the guide pad portion, Figure 9 is a view of a state in which resin is injected into the mold to form the plug auxiliary body portion in a state in which the wire is disposed in the guide pad portion.

[0048] Figure 10 is a perspective view of a guide pad portion of a first modification of the first embodiment of the present application, Figure 11 is a bottom view thereof.

[0049] Figure 12is a perspective view of a guide pad portion of a first embodiment of the present application, Figure 13 is a front view thereof.

[0050] Figure 14 is a perspective view of a guide pad portion of a second embodiment of the present application, Figure 15 is a state view in which a wire is provided in the guide pad portion, Figure 16 is a front view thereof.

[0051] Figure 17 is a perspective view of a guide pad portion of a first variant of the second embodiment of the present application, Figure 18 is a plan view thereof.

[0052] Figure 19 is a perspective view of an electrical plug of another embodiment of the present application, Figure 20 is a plan view thereof, Figure 21 is a bottom view thereof.

[0053] Figure 22 is a perspective view of a lower mold for manufacturing the electrical plug of another embodiment of the present application, Figure 23 is a side view thereof.

[0054] Figure 24 is a perspective view of a guide holding portion of another embodiment of the present application, Figure 25 is a front view thereof, Figure 26 is a state view in which a first wire, a second wire, and a third wire are inserted in a space portion of the guide holding portion. DETAILED DESCRIPTION

[0055] Hereinafter, preferred embodiments of the present application will be described in detail with reference to the accompanying drawings. However, the present application is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided merely to make the present application complete and to fully disclose the scope of the present application to those of ordinary skill in the art. The present application is defined only by the scope of the claims.

[0056] Hereinafter, a specific embodiment of the present application will be described in detail with reference to the accompanying drawings. The same reference numerals are used throughout the drawings and "and / or" includes each of the matters referred to and all combinations of one or more of the matters.

[0057] Although various components are described using first, second, and so on, the components are not limited by these terms. The terms are used only to distinguish one component from another component. Thus, the first component mentioned hereinafter can also be the second component in the technical idea of the present application.

[0058] The terms used in the present specification are for the purpose of describing the embodiments and are not intended to limit the present application. In the present specification, the singular forms also include the plural forms unless the context clearly dictates otherwise. The use of "comprises" and / or "comprising," as well as other variations such as "includes", "including" and / or "contains", "containing," appear in the specification, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises or contains an element or list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0059] Unless otherwise defined, all terms used in the present specification, including technical and scientific terms, can have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. Also, unless explicitly defined, terms defined in a dictionary can not be excessively interpreted.

[0060] Spatial relative terms such as "below", "lower", "above", "upper" and the like can be used for ease of describing one component's relationship to another component as illustrated in the drawings. It will be understood that these spatial relative terms include different orientations of the components in use or operation in addition to the orientations depicted in the drawings. For example, if a component illustrated in the drawings is turned over, a component described as being "below" or "lower" another component can then be "above" the other component. Thus, the exemplary term "below" can include both of the directions of below and above. Components can also be oriented in other directions, and accordingly spatial relative terms should be interpreted based on the specific orientation.

[0061] Preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0062] Figure 2 is a perspective view of an electrical plug of the present application, Figure 3 is a bottom view thereof, Figure 4 is a front view thereof.

[0063] Referring to Figures 2 to 4 , the electrical plug (100) of the present application includes a plug main body portion (110), a connection pin portion (120) exposed to a first side direction from the plug main body portion (110), a plug auxiliary body portion (130) extended to a second side direction from the plug main body portion (110), and a wiring portion (140) provided continuously with the plug auxiliary body portion (130).

[0064] On the other hand, the electrical plug of the present application can be defined as a right angle type plug in which the connection pin portion (120) and the wiring portion (140) are provided at right angles to each other. However, the definition of "right angle type" is to indicate the angle formed between the connection pin portion and the wiring portion, and in fact, the angle formed between the connection pin portion and the wiring portion can be an acute angle or an obtuse angle. Accordingly, in the present application, the "right angle type plug" can be more broadly defined as a "non-straight type plug".

[0065] That is, assuming that the angle formed between the connection pin portion (120) and the wiring portion (140) in the straight type plug is 0 degrees, the right angle type plug according to the present application is defined as a non-straight type plug in which the angle formed between the connection pin portion (120) and the wiring portion (140) can be a right angle, an acute angle, or an obtuse angle.

[0066] At this time, the electrical plug (100) according to the present application can be defined to include: a plug main body portion region (A); a connection pin portion region (B) exposed to a first side direction from the plug main body portion region (A); a plug auxiliary body portion region (C) extending to a second side direction from the plug main body portion region (A); and a wiring portion region (D) provided continuously with the plug auxiliary body portion region (C).

[0067] Further, it can be defined that the plug main body portion (110) is located in the plug main body portion region (A), the connection pin portion (120) is located in the connection pin portion region (B), the plug auxiliary body portion (130) is located in the plug auxiliary body portion region (C), and the wiring portion (140) is located in the wiring portion region (D).

[0068] At this time, the present application is characterized in that the upper surface of the plug main body portion (110) and the upper surface of the plug auxiliary body portion (130) are located on the same plane, and thus the electrical plug of this structure can be defined as a planar type electrical plug.

[0069] Continuing to refer to Figures 2 to 4 , the plug auxiliary body portion region (C) includes: a handle portion region (C1) having a first thickness provided continuously with the plug main body portion region (A); and a handle support body portion region (C2) having a second thickness provided continuously with one side of the handle portion region (C1) and the wiring portion region (D) on the other side.

[0070] At this time, the second thickness of the handle support body portion region (C2) is greater than the first thickness of the handle portion region (C1). As Figure 4 indicated, the second thickness of the handle support body portion region (C2) is greater than the first thickness of the handle portion region (C1), and thus the extraction force of the plurality of wirings located in the wiring portion (140) can be improved by the handle support body portion region (C).

[0071] On the other hand, it can be defined that the handle portion (130a) is located in the handle portion region (C1) and the handle support body portion (130b) is located in the handle support body portion region (C2).

[0072] Thus, it can be defined that the plug auxiliary body portion includes: a handle portion having a first thickness provided continuously with the plug main body portion; and a handle support body portion having a second thickness provided continuously with one side of the handle portion and the wiring portion on the other side.

[0073] At this point, as described above, in this invention, the upper surface of the plug main body portion (110) and the upper surface of the plug auxiliary body portion (130) are located on the same plane. Therefore, the upper surface of the plug main body portion (110), the upper surface of the handle portion (130a), and the upper surface of the handle support portion (130b) are located on the same plane. In this invention, the plug with this structure can be defined as a planar plug.

[0074] As mentioned above, because existing right-angle plugs have a structure in which the plug body protrudes outside the socket when connected to the socket, there is a problem that household appliances or furniture cannot be fitted against the wall as closely as possible.

[0075] In other words, because space needs to be made for the protruding part of the plug body that connects to the socket, household appliances or furniture cannot be flush against the wall as closely as possible.

[0076] More specifically, existing right-angle plugs use the plug body as a handle, and to function as a handle, the plug body protrudes significantly beyond the socket. Therefore, because space needs to be made for the protruding part of the plug body, household appliances or furniture cannot be placed flush against the wall.

[0077] However, in this invention, the handle portion (130a), which functions as a handle, extends from the main plug body portion (110) towards the second side, and the upper surface of the plug auxiliary body portion (130), including the handle portion (130a), is disposed on the same plane as the upper surface of the main plug body portion (110). This minimizes the thickness of the main plug body portion (110) and minimizes the protruding portion of the plug connected to a socket installed on the wall. This provides a flat plug that allows furniture or household appliances to fit snugly against the wall and improves space utilization.

[0078] On the other hand, it can be defined that the handle portion (220) has a first thickness and the handle support portion (230) has a second thickness, wherein the second thickness is greater than the first thickness.

[0079] In addition, such as Figure 4 As shown, the upper surface of the handle portion (130a) and the upper surface of the handle support portion (130b) are located on the same plane. That is, the upper surfaces of the handle portion (130a) and the handle support portion (130b) are flat, while the lower surface of the handle support portion (130b) protrudes further downward than the lower surface of the handle portion (130a), thereby making the second thickness of the handle support portion (130b) greater than the first thickness of the handle portion (130a).

[0080] Continue to refer to Figure 2The connector pin portion (120) includes: a first connector pin portion (120a) exposed from the plug main body portion (110) in a first-side direction; and a second connector pin portion (120b) exposed from the plug main body portion (110) in a first-side direction and disposed at a certain interval from the first connector pin portion (120a). Although the number of connector pin portions is shown as two in the drawings, the present invention does not limit the number of connector pin portions.

[0081] On the other hand, although not shown in the accompanying drawings, the interior of the plug main body may include a grounding portion. In the case of a typical electrical plug, it includes: a first wiring (121a) connected to a first connecting pin (120a); a second wiring (121b) connected to a second connecting pin (120b); and a third wiring (121c) connected to the grounding portion. These first to third wirings extend to the wiring portion (140), thereby allowing power to be supplied to electronic devices connected to the electrical plug through multiple wirings.

[0082] At this time, the first wiring (121a), the second wiring (121b) and the third wiring (121c) are electrically connected to the first connecting pin (120a), the second connecting pin (120b) and the grounding part respectively in the plug main body part (110), and after being set along the handle part (220) and the handle support part (230), they are extended to the wiring part (140).

[0083] Figure 5 This is a schematic diagram showing a mold for manufacturing an electrical plug according to the present invention. In addition to the following, reference can be made to the mold in Korean Patent Publication 10-2022-0015540 for manufacturing the electrical plug according to the present invention.

[0084] on the other hand, Figure 5 The mold in the figure is an injection mold; only the lower mold is shown in the attached figure, and the upper mold is omitted.

[0085] refer to Figure 5 The lower mold (400) for manufacturing the electrical plug according to the present invention (hereinafter referred to as "lower mold") includes: a lower mold part (410) for injection molding the main body of the plug; and a lower mold part (420) for injection molding the auxiliary body of the plug, which is continuously disposed with the lower mold part (410) for injection molding the main body of the plug.

[0086] In other words, the main body of the plug can be injection molded by the lower mold (410) for injection molding of the main body of the plug, and the auxiliary body of the plug can be injection molded by the lower mold (420) for injection molding of the auxiliary body of the plug.

[0087] At this time, as Figure 5As shown, the first connection pin portion and the second connection pin portion are inserted into the lower mold portion (410) for injection molding of the plug main body portion. The first wire (not shown) connected to the first connection pin portion (121a), the second wire (not shown) connected to the second connection pin portion (not shown), and the third wire (not shown) connected to the ground portion are aligned in the lower mold portion (420) for injection molding of the plug auxiliary body portion, and the first wire to the third wire can be provided to extend to the wire portion (140).

[0088] After that, although not shown in the drawing, resin can be injected into the mold interior in a state where the lower mold (400) and an upper mold not shown are clamped, thereby manufacturing the electric plug according to the present application.

[0089] Continuing to refer to Figure 5 The lower mold (400) according to the present application includes a guide pad portion (500) provided at an upper portion of the lower mold portion (420) for injection molding of the plug auxiliary body portion.

[0090] At this time, the guide pad portion (500) functions to guide the first wire to the third wire in one direction as described above, and the material of the guide pad portion is preferably a resin material such as PVC resin, ABS resin, or PC resin.

[0091] On the other hand, the guide pad portion (500) guiding the first wire to the third wire in one direction as described above means that the first wire, the second wire, and the third wire are provided in a straight line with reference to respective cross sections, for example, in a region of the first handle portion body portion, and the same applies below.

[0092] As described above, resin can be injected into the mold interior in a state where the lower mold (400) and an upper mold not shown are clamped, thereby manufacturing the electric plug according to the present application. In order to improve the adhesion of the guide pad portion to resin injected into the mold interior when resin is injected into the mold interior to manufacture the electric plug, the material of the guide pad portion is preferably a resin material such as PVC resin, ABS resin, or PC resin.

[0093] On the other hand, although the guide pad portion is shown as being provided in the entire region according to the length direction of the lower mold portion (420) for injection molding of the plug auxiliary body portion in the drawing, since the guide pad portion functions to guide the first wire to the third wire in one direction, the guide pad portion can also be provided in a part of the region of the lower mold portion (420) for injection molding of the plug auxiliary body portion.

[0094] The guide pad portion according to the present application will be described in more detail below: Figure 6 is a schematic view showing the guide pad portion according to the first embodiment of the present application, Figure 7 is a side view thereof, Figure 8is a schematic view showing a state in which the first wiring is provided in the guide pad portion, Figure 9 is a schematic view showing a state in which the plug auxiliary body portion is formed in a state in which resin is injected into a mold to provide the wiring in the guide pad portion. On the other hand, for convenience of explanation, Figure 8 only the first wiring is shown in

[0095] First, the guide pad portion according to the present application can be defined as follows: The guide pad portion according to the present application includes: a length direction (X direction in Figure 6 ) of the guide pad portion; a width direction (Y direction in Figure 6 ) of the guide pad portion that lies in the same plane as the length direction of the guide pad portion; and a height direction (Z direction in Figure 6 ) of the guide pad portion that is perpendicular to the length direction of the guide pad portion and the width direction of the guide pad portion. At this time, the guide pad portion extends in the length direction, and the length direction of the guide pad portion can be defined as a direction in which the wiring is aligned in one direction.

[0096] Referring to Figure 6 and Figure 7 , the guide pad portion (500) according to the present application includes: a first substrate (510) including an upper surface (510a) and a lower surface (510b) opposite the upper surface; an upper first groove (511a) located on the upper surface (510a) side of the first substrate (510), located on one side of the width direction of the guide pad portion, and provided in the length direction of the guide pad portion; an upper second groove (511b) located on the upper surface (510a) side of the first substrate (510), located on the other side of the width direction of the guide pad portion, and provided in the length direction of the guide pad portion; and an upper third groove (511c) provided between the upper first groove (511a) and the upper second groove (511b), spaced apart from the upper first groove (511a) and the upper second groove (511b) by a certain interval, respectively, and provided in the length direction of the guide pad portion.

[0097] As shown in Figure 8 and Figure 9 , the first wiring (121a) is provided in and guided by the upper first groove (511a), the second wiring (121b) is provided in and guided by the upper second groove (511b), and the third wiring (121c) can be provided in and guided by the upper third groove (511c).

[0098] Referring to Figure 6 and Figure 7, the guide pad portion (500) according to the present application further includes: an upper first protrusion (511a) disposed at a connection between the upper first groove (511a) and the upper third groove (511c) and disposed in a length direction of the guide pad portion; and an upper second protrusion (511b) disposed at a connection between the upper second groove (511b) and the upper third groove (511c) and disposed in the length direction of the guide pad portion, which is spaced apart from the upper first protrusion (511a) by a certain interval.

[0099] At this time, the upper first protrusion (511a) and the upper second protrusion (511b) serve to allow the first to third wires to be disposed at a certain interval from each other when the first wire (121a) is disposed in the upper first groove (511a) and guided, the second wire (121b) is disposed in the upper second groove (511b) and guided, and the third wire (121c) is disposed in the upper third groove (511c) and guided, so that the first to third wires can be more easily disposed.

[0100] Referring to Figure 6 and Figure 7 , the guide pad portion (500) according to the present application further includes: an upper third protrusion (512c) disposed at an edge of one side in a width direction of the guide pad portion, which is disposed adjacent to the upper first groove (511a) and disposed in a length direction of the guide pad portion; and an upper fourth protrusion (512d) disposed at an edge of the other side in the width direction of the guide pad portion, which is disposed adjacent to the upper second groove (511b) and disposed in the length direction of the guide pad portion.

[0101] At this time, the upper third protrusion (512c) and the upper fourth protrusion (512d) serve to prevent the first wire and the second wire from being separated from the upper first groove (511a) and the upper second groove (511b), respectively, when the first wire (121a) is disposed in the upper first groove (511a) and guided, and the second wire (121b) is disposed in the upper second groove (511b) and guided.

[0102] Referring to Figure 9 As described above, in the present application, resin can be injected into a mold in a state in which the wires are disposed in the guide pad portion to form the plug auxiliary body portion.

[0103] That is, a first resin layer (510) covering the guide pad portion and the first to third wires can be formed in a state in which the first to third wires are guided by the guide pad portion, so that the plug auxiliary body portion according to the present application is formed.

[0104] At this time, the material of the first resin layer can be a resin material such as a PVC resin, an ABS resin, or a PC resin. However, the present application does not limit the material of the first resin layer, but in the present application, the material of the first resin layer and the material of the guide pad portion are preferably the same.

[0105] Accordingly, the electric plug according to the present application can be defined as follows: First, referring to the above Figures 2 to 4 , the electric plug (100) according to the present application includes: a plug main body portion (110); a connection pin portion (120) exposed to a first side direction from the plug main body portion (110); a plug auxiliary body portion (130) extending to a second side direction from the plug main body portion (110); and a wiring portion (140) provided continuously with the plug auxiliary body portion (130).

[0106] Further, the connection pin portion (120) includes: a first connection pin portion (120a) exposed to the first side direction from the plug main body portion (110); and a second connection pin portion (120b) exposed to the first side direction from the plug main body portion (110) and provided at a certain interval apart from the first connection pin portion (120a), and the inside of the plug main body portion includes a ground portion.

[0107] Further, the electric plug includes: a first wiring (121a) connected to the first connection pin portion (120a); a second wiring (121b) connected to the second connection pin portion (120b); and a third wiring (121c) connected to the ground portion.

[0108] At this time, as shown in Figure 9 , the plug auxiliary body portion (130) of the electric plug (100) according to the present application includes: a guide pad portion (500) for guiding the first wiring to the third wiring in one direction; and a first resin layer (510) covering the guide pad portion, the first wiring to the third wiring.

[0109] On the other hand, since the shape of the guide pad portion is as described above, detailed description is omitted below, and the following various embodiments of the guide pad portion can be applied to the electric plug according to the present application.

[0110] Figure 10 is a schematic view showing a guide pad portion according to a first modification of the first embodiment of the present application, Figure 11 is a bottom view thereof. Hereinafter, the guide pad portion according to the first modification of the first embodiment of the present application can refer to the above guide pad portion according to the first embodiment of the present application except for the following.

[0111] Referring to Figure 10 and Figure 11As described above, the guide pad portion (500') according to the first modification of the first embodiment of the present application includes: an upper first protrusion (511a) provided at a connection between an upper first groove (511a) and an upper third groove (511c) and in a length direction of the guide pad portion; an upper second protrusion (511b) provided at a connection between an upper second groove (511b) and the upper third groove (511c) and in the length direction of the guide pad portion, provided at a certain interval from the upper first protrusion (511a); an upper third protrusion (512c) provided at a certain interval from the upper first groove (511a) and in a width direction of the guide pad portion; and an upper fourth protrusion (512d) provided at a certain interval from the upper second groove (511b) and in the width direction of the guide pad portion.

[0112] At this time, the upper first protrusion (511a) includes a first through-hole (513a) provided at a certain region of the upper first protrusion (511a), in a height direction of the guide pad portion, and penetrating from an upper surface (510a) of the first substrate (510) to a lower surface (510b) of the first substrate (510). The upper second protrusion (511b) includes a second through-hole (513b) provided at a certain region of the upper second protrusion (511b), in the height direction of the guide pad portion, and penetrating from the upper surface (510a) of the first substrate (510) to the lower surface (510b) of the first substrate (510).

[0113] Further, the upper third protrusion (511c) includes a third through-hole (513c) provided at a certain region of the upper third protrusion (511c), in the height direction of the guide pad portion, and penetrating from the upper surface (510a) of the first substrate (510) to the lower surface (510b) of the first substrate (510). The upper fourth protrusion (511d) includes a fourth through-hole (513d) provided at a certain region of the upper fourth protrusion (511d), in the height direction of the guide pad portion, and penetrating from the upper surface (510a) of the first substrate (510) to the lower surface (510b) of the first substrate (510).

[0114] At this time, although the number of the first through-hole to the fourth through-hole is one in the drawing, the number of the first through-hole to the fourth through-hole can be plural.

[0115] As described above, in the present application, the resin can be injected into the mold with the wiring provided in the guide pad portion to form the plug auxiliary body portion.

[0116] At this time, in the present application, the adhesion of the first resin layer and the guide pad portion can be improved by injecting resin into the inside of the first to fourth through holes.

[0117] Figure 12 is a schematic view showing a guide pad portion according to a second modification of the first embodiment of the present application, Figure 13 is a front view thereof. Hereinafter, the guide pad portion according to the second modification of the first embodiment of the present application can refer to the above-described guide pad portion according to the first embodiment of the present application and the guide pad portion according to the first modification of the first embodiment of the present application except for the following.

[0118] Reference Figure 12 and Figure 13 As described above, the guide pad portion (500") according to the second modification of the first embodiment of the present application includes: a first substrate (510) including an upper surface (510a) and a lower surface (510b) opposite to the upper surface; an upper first groove (511a) located on the upper surface (510a) side of the first substrate (510), located on one side in the width direction of the guide pad portion, and provided in the length direction of the guide pad portion; an upper second groove (511b) located on the upper surface (510a) side of the first substrate (510), located on the other side in the width direction of the guide pad portion, and provided in the length direction of the guide pad portion; and an upper third groove (511c) provided between the upper first groove (511a) and the upper second groove (511b), spaced apart from the upper first groove (511a) and the upper second groove (511b) by a certain interval, respectively, and provided in the length direction of the guide pad portion.

[0119] Further, reference Figure 12 and Figure 13 As described above, the guide pad portion (500") according to the second modification of the first embodiment of the present application includes: a lower first groove (514) located on the lower surface (510b) side of the first substrate (510) and provided in the length direction of the guide pad portion.

[0120] As described above, in the present application, resin can be injected into a mold to form the plug auxiliary body portion in a state where the wiring is provided in the guide pad portion.

[0121] At this time, in the present application, the adhesion of the first resin layer and the guide pad portion can be improved by injecting resin into the lower first groove.

[0122] Figure 14 is a schematic view showing a guide pad portion according to a second embodiment of the present application, Figure 15 is a schematic view showing a state where a wiring is provided in the guide pad portion, Figure 16is a front view thereof. On the other hand, a guide pad portion according to a second embodiment of the present application can refer to the above-described guide pad portion according to the first embodiment of the present application, the guide pad portion according to the first modification of the first embodiment of the present application, and the guide pad portion according to the second modification of the first embodiment of the present application, except for the following.

[0123] First, the guide pad portion according to the second embodiment of the present application can be defined as follows: The guide pad portion (600) according to the second embodiment of the present application includes: a length direction (X direction) of the guide pad portion; a width direction (Y direction) of the guide pad portion which is in the same plane as the length direction of the guide pad portion; and a height direction (Z direction) of the guide pad portion which is perpendicular to the length direction of the guide pad portion and the width direction of the guide pad portion. At this time, the guide pad portion extends in the length direction, and the length direction of the guide pad portion can be defined as a direction in which the wiring is aligned in one direction. Figure 14 Figure 14 Figure 14

[0124] Referring to Figure 14 , the guide pad portion (600) according to the second embodiment of the present application includes: an upper flat pad portion (610a) which is provided at an upper portion in the height direction of the guide pad portion and in the length direction of the guide pad portion; a lower flat pad portion (610b) which is provided at a lower portion in the height direction of the guide pad portion and in the length direction of the guide pad portion, opposite to the upper flat pad portion (610a); a first side semicircular pad portion (610c) which is provided at one side in the width direction of the guide pad portion, continuously provided at one side of the upper flat pad portion (610a) and at one side of the lower flat pad portion (610b), and in the length direction of the guide pad portion, and has a semicircular cross section; and a second side semicircular pad portion (610d) which is provided at the other side in the width direction of the guide pad portion, continuously provided at the other side of the upper flat pad portion (610a) and at the other side of the lower flat pad portion (610b), and in the length direction of the guide pad portion, opposite to the first side semicircular pad portion (610c), and has a semicircular cross section.

[0125] Further, the guide pad portion (600) according to the second embodiment of the present application includes: a first space portion (611) which is formed by the upper flat pad portion (610a), the first side semicircular pad portion (610c), the lower flat pad portion (610b), and the second side semicircular pad portion (610d) being continuously provided. As shown in Figure 15 and Figure 16 As described above, the first wiring (121a), the second wiring (121b), and the third wiring (121c) can be provided in the first space portion.

[0126] ​​​On the other hand, since the upper flat pad portion (610a), the first side semi-circular pad portion (610c), the lower flat pad portion (610b), and the second side semi-circular pad portion (610d) of the guide pad portion (600) according to the second embodiment of the present application are continuously provided, the cross section (in the height direction of the guide pad portion) of the guide pad portion (600) according to the second embodiment of the present application can be defined as a ring shape.

[0127] At this time, in the present application, the inner surface of the upper flat pad portion (610a), the inner surface of the first side semi-circular pad portion (610c), the inner surface of the lower flat pad portion (610b), and the inner surface of the second side semi-circular pad portion (610d) respectively include an adhesive portion (not shown). When the first wire (121a), the second wire (121b), and the third wire (121c) are provided in the first space portion as described above, the first wire (121a), the second wire (121b), and the third wire (121c) can be adhered to the inner surfaces of the upper flat pad portion (610a), the first side semi-circular pad portion (610c), the lower flat pad portion (610b), and the second side semi-circular pad portion (610d) by the adhesive portions.

[0128] More specifically, when the first wire (121a) is provided in the first space portion, the first wire can be adhered to the inner surface of the first side semi-circular pad portion. When the second wire (121b) is provided in the first space portion, the second wire can be adhered to the inner surface of the second side semi-circular pad portion. When the third wire (121c) is provided in the first space portion, the third wire can be adhered to the inner surface of the upper flat pad portion (610a) and the inner surface of the lower flat pad portion (610b).

[0129] By such a structure of the guide pad portion according to the second embodiment of the present application, the first wire to the third wire can be disposed in one direction as described above.

[0130] At this time, as described above, the disposition of the first wire to the third wire in one direction by the structure of the guide pad portion means that the first wire, the second wire, and the third wire are disposed in a straight line with reference to the respective cross sections, for example, in the region of the first handle portion body portion, and the same applies hereinafter.

[0131] On the other hand, in the structure of the guide pad portion according to the second embodiment of the present application, as described above, in the present application, resin can be injected into a mold to form the plug auxiliary body portion in a state in which the wires are provided in the guide pad portion.

[0132] That is, a first resin layer covering the guide pad portion, the first wire to the third wire can be formed in a state in which the first wire to the third wire are guided by the guide pad portion, thereby forming the plug auxiliary body portion according to the present application.

[0133] Figure 17 is a schematic view showing a guide pad portion according to a first modification of the second embodiment of the present application, Figure 18 is a plan view thereof. Hereinafter, the guide pad portion according to the first modification of the second embodiment of the present application can refer to the above-described guide pad portion according to the second embodiment of the present application except for the following.

[0134] Referring to Figure 17 and Figure 18 , the guide pad portion (600') according to the first modification of the second embodiment of the present application includes: an upper flat pad portion (610a) located at an upper portion in a height direction of the guide pad portion and disposed in a length direction of the guide pad portion; a lower flat pad portion (610b) disposed opposite to the upper flat pad portion (610a), located at a lower portion in the height direction of the guide pad portion, and disposed in the length direction of the guide pad portion; a first side semicircular pad portion (610c) having a semicircular cross section, located at one side in a width direction of the guide pad portion, continuously disposed with one side of the upper flat pad portion (610a) and the other side of the lower flat pad portion (610b), and disposed in the length direction of the guide pad portion; and a second side semicircular pad portion (610d) having a semicircular cross section, disposed opposite to the first side semicircular pad portion (610c), located at the other side in the width direction of the guide pad portion, continuously disposed with the other side of the upper flat pad portion (610a) and the other side of the lower flat pad portion (610b), and disposed in the length direction of the guide pad portion.

[0135] Further, the guide pad portion (600) according to the first modification of the second embodiment of the present application includes a first space portion (611) formed by the upper flat pad portion (610a), the first side semicircular pad portion (610c), the lower flat pad portion (610b), and the second side semicircular pad portion (610d) being continuously disposed.

[0136] Referring to Figure 17 and Figure 18 , the guide pad portion (600') according to the first modification of the second embodiment of the present application further includes: a first through-hole (611a) disposed in a specific region of the upper flat pad portion (610a) between a region where the first wiring is disposed and a region where the third wiring is disposed; and a second through-hole (611b) disposed in a specific region of the upper flat pad portion (610a) between a region where the second wiring is disposed and a region where the third wiring is disposed.

[0137] Further, although not shown in the drawings, the guide pad portion (600') of the first modified example of the second embodiment according to the present application further includes: a third through-hole (not shown) provided in a certain area of the lower flat pad portion (610b) between the area where the first wiring is provided and the area where the third wiring is provided; and a fourth through-hole (not shown) provided in a certain area of the lower flat pad portion (610b) between the area where the second wiring is provided and the area where the third wiring is provided.

[0138] At this time, although the number of the first through-hole and the second through-hole is one each as shown in the drawings, the number of the first through-hole and the second through-hole can be plural each.

[0139] Likewise, the number of the third through-hole and the fourth through-hole can also be plural each.

[0140] As described above, in the present application, resin can be injected into a mold in a state where the wiring is provided in the guide pad portion to form the plug auxiliary body portion.

[0141] At this time, in the present application, the adhesion of the first resin layer and the guide pad portion can be improved by injecting resin into the inside of the first through-hole to the fourth through-hole.

[0142] Further, in the guide pad portion of the first modified example of the second embodiment according to the present application, the above-described resin can be injected into the inside of the first space portion (611) through the first through-hole to the fourth through-hole, whereby not only the adhesion of the first resin layer and the guide pad portion can be improved, but also the positions of the first wiring to the third wiring can be fixed by the resin injected into the inside of the first space portion (611).

[0143] As described above, in the case of the above-described Korean Patent Publication No. 10-2022-0015540, since the wiring is aligned by the first protruding pin and the second protruding pin, the lower mold must include the first protruding pin and the second protruding pin, and it is somewhat difficult to design the lower mold due to the first protruding pin and the second protruding pin.

[0144] However, in the present application, the wiring is aligned by the guide pad portion, and even in a structure in which the protruding pin is not included in the lower mold, a planar type electric plug capable of easily aligning the first wiring to the third wiring can be provided. DETAILED DESCRIPTION

[0145] Figure 19 is a perspective view showing an electric plug according to another embodiment of the present application, Figure 20 is a plan view showing an electric plug according to another embodiment of the present application, Figure 21 is a bottom view showing an electric plug according to another embodiment of the present application.

[0146] REFERENCEFigures 19 to 21 The electric plug (1000) according to another embodiment of the present application can be defined as a right angle type plug in which the connection pin portion (1120) and the wiring portion (1140) are disposed at right angles to each other, but the definition of "right angle type" is intended to indicate the angle formed between the connection pin portion and the wiring portion, and the angle formed between the connection pin portion and the wiring portion can be an acute angle or an obtuse angle, and thus, in the present application, the "right angle type plug" can be more broadly defined as a "non-straight type plug".

[0147] That is, assuming that the angle formed between the connection pin portion (1120) and the wiring portion (1140) in a straight type plug is 0 degrees, the right angle type plug according to the present application is defined as a non-straight type plug, so that the angle formed between the connection pin portion (1120) and the wiring portion (1140) can be a right angle, an acute angle, or an obtuse angle.

[0148] At this time, the electric plug (1000) according to another embodiment of the present application can be defined as including a plug main body portion region (A), a connection pin portion region (B) exposed to a first side direction from the plug main body portion region (A), a plug auxiliary body portion region (C) extending to a second side direction from the plug main body portion region (A), and a wiring portion region (D) disposed continuously with the plug auxiliary body portion region (C).

[0149] In addition, it can be defined that the plug main body portion (1110) is located in the plug main body portion region (A), the connection pin portion (120) is located in the connection pin portion region (B), the plug auxiliary body portion (130) is located in the plug auxiliary body portion region (C), and the wiring portion (1140) is located in the wiring portion region (D).

[0150] At this time, the electric plug (1000) according to another embodiment of the present application can be defined as including a plug main body portion region (A), a connection pin portion region (B) exposed to a first side direction from the plug main body portion region (A), a plug auxiliary body portion region (C) extending to a second side direction from the plug main body portion region (A), and a wiring portion region (D) disposed continuously with the plug auxiliary body portion region (C).

[0151] At this time, the electric plug (1000) according to another embodiment of the present application can be defined as including a plug main body portion region (A), a connection pin portion region (B) exposed to a first side direction from the plug main body portion region (A), a plug auxiliary body portion region (C) extending to a second side direction from the plug main body portion region (A), and a wiring portion region (D) disposed continuously with the plug auxiliary body portion region (C).

[0152] Continuing with reference to Figures 19 to 21The plug auxiliary body portion region (C) includes a handle portion region (C1) having a first thickness, which is continuously provided from the plug main body portion region (A), and a handle support body portion region (C2) having a second thickness, which is continuously provided on one side from the handle portion region (C1) and continuously provided on the other side from the wiring portion region (D).

[0153] At this time, the second thickness of the handle support body portion region (C2) is greater than the first thickness of the handle portion region (C1). As shown in Figure 21 the second thickness of the handle support body portion region (C2) is greater than the first thickness of the handle portion region (C1), so that the extraction force of the plurality of wirings positioned in the wiring portion (140) can be increased by the handle support body portion region (C).

[0154] On the other hand, it can be defined that the handle portion (1130a) is positioned in the handle portion region (C1) and the handle support body portion (1130b) is positioned in the handle support body portion region (C2).

[0155] Therefore, it can be defined that the plug auxiliary body portion includes a handle portion having a first thickness, which is continuously provided from the plug main body portion, and a handle support body portion having a second thickness, which is continuously provided on one side from the handle portion and continuously provided on the other side from the wiring portion.

[0156] At this time, as described above, in the present application, the upper surface of the plug main body portion (1110) and the upper surface of the plug auxiliary body portion (1130) are positioned on the same plane. Therefore, the upper surface of the plug main body portion (1110) and the upper surfaces of the handle portion (1130a) and the handle support body portion (1130b) are positioned on the same plane. In the present application, the electric plug having such a structure can be defined as a flat-type electric plug.

[0157] As described above, since the existing right-angle type plug adopts a structure in which the plug body protrudes to the outside of the outlet when connected to the outlet, there is a problem that the home appliance or furniture cannot be maximally close to the wall.

[0158] That is, since a space needs to be left for the protruding portion of the plug body connected to the outlet, the home appliance or furniture cannot be maximally close to the wall.

[0159] More specifically, the existing right-angle type plug adopts a structure in which the plug body serves as a handle, and in order to function as a handle, the plug body protrudes to the outside of the outlet with a considerable thickness. Therefore, since a space needs to be left for the protruding portion of the plug body, the home appliance or furniture cannot be maximally close to the wall.

[0160] However, in the present invention, the handle portion (1130a) that functions as a handle is extended from the plug main body portion (1110) toward the second side direction, and the upper surface of the plug auxiliary body portion (1130) including the handle portion (1130a) is disposed on the same plane as the upper surface of the plug main body portion (1110). This can minimize the thickness of the plug main body portion (1110) and the protruding portion of the plug connected to the outlet provided on the wall. Thus, a flat plug can be provided, enabling the furniture or the home appliance to be maximally close to the wall and improving the space utilization.

[0161] On the other hand, the handle portion (1220) can be defined to have a first thickness, and the handle support body portion (1230) can be defined to have a second thickness, wherein the second thickness is greater than the first thickness.

[0162] In addition, as shown in Figure 21 , the upper surface of the handle portion (1130a) and the upper surface of the handle support body portion (1130b) are on the same plane. That is, the upper surface of the handle portion (1130a) and the upper surface of the handle support body portion (1130b) are flat, and the lower surface of the handle support body portion (1130b) is more protruded downward than the lower surface of the handle portion (1130a), so that the second thickness of the handle support body portion (1130b) is greater than the first thickness of the handle portion (1130a).

[0163] Continuing to refer to Figure 19 , the connection pin portion (1120) includes a first connection pin portion (1120a) exposed from the plug main body portion (1110) toward the first side direction, and a second connection pin portion (1120b) exposed from the plug main body portion (1110) toward the first side direction and disposed apart from the first connection pin portion (1120a) by a certain interval. Although the number of the connection pin portions is shown as two in the drawings, the number of the connection pin portions is not limited in the present invention.

[0164] On the other hand, although not shown in the drawings, the inside of the plug main body portion can include a grounding portion. In the case of a general electric plug, there are included a first wiring (not shown) connected to the first connection pin portion (1120a), a second wiring (not shown) connected to the second connection pin portion (1120b), and a third wiring (not shown) connected to the grounding portion. These first to third wirings extend to the wiring portion (1140), so that power supply or the like can be provided to an electronic device to which the electric plug is connected through the plurality of wirings.

[0165] At this time, the first wire, the second wire, and the third wire are electrically connected to the first connection pin portion (1120a), the second connection pin portion (1120b), and the ground portion, respectively, in the plug main body portion (1110), and are disposed along the handle portion (1220) and the handle support body portion (1230) and then are extended and disposed to the wire portion (1140).

[0166] Figure 22 is a schematic view showing a lower mold for manufacturing an electrical plug according to another embodiment of the present application, Figure 23 is a side view showing a lower mold for manufacturing an electrical plug according to another embodiment of the present application. At this time, the mold for manufacturing an electrical plug according to another embodiment of the present application can refer to the mold in the above Korean Patent Publication 10-2022-0015540, except for the following.

[0167] On the other hand, Figure 22 and Figure 23 the mold in Figure 23 is shown below.

[0168] Referring to Figure 22 and Figure 23 , a lower mold (4000) for manufacturing an electrical plug according to another embodiment of the present application (hereinafter referred to as "lower mold") includes a plug main body portion injection-molding lower mold portion (4410), and a plug auxiliary body portion injection-molding lower mold portion (4420) disposed continuously with the plug main body portion injection-molding lower mold portion (4410).

[0169] That is, the above-mentioned plug main body portion can be injection-molded by the plug main body portion injection-molding lower mold portion (4410), and the above-mentioned plug auxiliary body portion can be injection-molded by the plug auxiliary body portion injection-molding lower mold portion (4420).

[0170] At this time, as shown in Figure 22 , the first connection pin portion and the second connection pin portion are inserted into the plug main body portion injection-molding lower mold portion (4410). The first wire (not shown) connected to the first connection pin portion (1120a), the second wire (not shown) connected to the second connection pin portion (not shown), and the third wire (not shown) connected to the ground portion are aligned in the plug auxiliary body portion injection-molding lower mold portion (4420), and the first wire to the third wire can be extended and disposed to the wire portion (4140).

[0171] After that, although not shown in the drawing, resin can be injected into the mold inside in a state in which the lower mold (4000) and the not-shown upper mold are clamped, thereby manufacturing an electrical plug according to another embodiment of the present application.

[0172] Continuing to refer to Figure 23 The lower mold (4000) according to the other embodiment of the present application includes a guide holding portion (5000) provided on the upper portion of the lower mold portion for injection molding of the plug auxiliary body portion (4420).

[0173] At this time, the guide holding portion (5000) functions to guide the first to third wirings toward one direction as described above, and the material of the guide holding portion is preferably a resin material such as PVC resin, ABS resin, or PC resin.

[0174] On the other hand, the guide holding portion (5000) guiding the first to third wirings toward one direction as described above means that the first to third wirings are arranged in straight lines with reference to respective cross sections in the region of the first handle portion body portion, and the same applies to the following.

[0175] As described above, the resin can be injected into the mold interior in the state that the lower mold (4000) and an upper mold not shown are in a mold clamped state, thereby manufacturing the electric plug according to the other embodiment of the present application. In order to improve the adhesion of the guide holding portion to the resin injected into the mold interior when the resin is injected into the mold interior to manufacture the electric plug, the material of the guide holding portion is preferably a resin material such as PVC resin, ABS resin, or PC resin.

[0176] On the other hand, although the guide holding portion is shown as being provided in the entire region with reference to the length direction of the lower mold portion for injection molding of the plug auxiliary body portion (4420) in the drawings, since the guide holding portion functions to guide the first to third wirings toward one direction, the guide holding portion can also be provided in a part of the region of the lower mold portion for injection molding of the plug auxiliary body portion (4420).

[0177] Continuing to refer to Figure 22 and Figure 23 As described above, the lower mold (4000) (hereinafter referred to as "lower mold") for manufacturing the electric plug according to the other embodiment of the present application includes a lower mold portion for injection molding of a plug main body portion (4410), and a lower mold portion for injection molding of a plug auxiliary body portion (4420) provided continuously with the lower mold portion for injection molding of the plug main body portion (4410).

[0178] At this time, as shown in the drawing, the lower mold portion for injection molding of the plug auxiliary body portion (4420) includes a first protruding pin (4421) located in a first region, and a second protruding pin (4422) located in a second region and provided apart from the first protruding pin (4422) in the length direction.

[0179] Furthermore, the first protruding pin (4421) includes a first-1 protruding pin (4421a); ​​and a first-2 protruding pin (4421b) spaced apart from the first-1 protruding pin (4421a) in the width direction. The second protruding pin (4422) includes a second-1 protruding pin (4422a); and a second-2 protruding pin (4422b) spaced apart from the second-1 protruding pin (4422a) in the width direction.

[0180] On the other hand, as shown in the figure, the protruding pin may also include a third protruding pin (4423) located between the first protruding pin and the second protruding pin. In this case, the third protruding pin (4423) may also include a third-first protruding pin (4423a) and a third-second protruding pin (4423b) disposed spaced apart from the third-first protruding pin (4423a) in the width direction. However, in the present invention, the protruding pin may include at least two protruding pins (i.e., the first protruding pin and the second protruding pin).

[0181] On the other hand, the length and width directions can be defined according to the lower mold part for injection molding of the plug auxiliary body.

[0182] In addition, such as Figure 23 As shown, according to another embodiment of the present invention, the lower mold (4000) includes a guide retaining portion (5000) disposed on the upper part of the lower mold portion (4420) for injection molding of the plug auxiliary body portion, wherein the lower surface of the guide retaining portion (5000) can be supported by a protruding pin.

[0183] For example, one side of the guide retainer (5000) in the length direction can be supported by a first protruding pin (4421, 4421a), the other side of the guide retainer (5000) in the length direction can be supported by a second protruding pin (4422, 4422a), and the central region of the guide retainer (5000) in the length direction can be supported by a third protruding pin (4423, 4423a).

[0184] At this time, when the first wiring, the second wiring and the third wiring are inserted into the guide retainer (5000), the lower surface of the guide retainer is supported by the protruding pin. Therefore, the lower surface of the guide retainer can be set at a certain distance from the inner surface of the lower mold part (4420) for injection molding of the plug auxiliary body part.

[0185] In other words, the lower surface of the guide retainer can be separated from the inner surface of the lower mold part (4420) for injection molding of the plug auxiliary body part by the height of the protruding pin.

[0186] Continue to refer to Figure 22 and Figure 23As shown in the drawing, the lower mold portion (4420) for injection molding of the plug auxiliary body portion includes a first guide pin (4431) located in the third region, and a second guide pin (4432) located in the fourth region and disposed apart from the first guide pin (4431) in the length direction.

[0187] Further, the first guide pin (4431) includes a first-1 guide pin (4431a) and a first-2 guide pin (4431b) disposed apart from the first-1 guide pin (4431a) in the width direction, and the second guide pin (4432) includes a second-1 guide pin (4432a) and a second-2 guide pin (4432b) disposed apart from the second-1 guide pin (4432a) in the width direction.

[0188] At this time, the interval between the first-1 guide pin (4431a) and the first-2 guide pin (4431b) and the interval between the second-1 guide pin (4432a) and the second-2 guide pin (4432b) can be greater than the interval between the first-1 protruding pin (4421a) and the first-2 protruding pin (4421b), but the present application does not limit the values of these intervals.

[0189] Further, in the present application, as described below, in order to support the width direction side surfaces of the guide holding portion by the guide pins, the height of the guide pins is preferably greater than the height of the protruding pins.

[0190] On the other hand, although the first guide pin and the second guide pin are shown in the drawing as being disposed in the region between the first protruding pin and the second protruding pin, the present application does not limit the disposition relationship of the guide pins and the protruding pins.

[0191] At this time, as shown in the drawing, the width direction side surfaces of the guide holding portion (5000) can be supported by the first guide pin and the second guide pin.

[0192] More specifically, the width direction one side surface of the length direction front portion of the guide holding portion can be supported by the first-1 guide pin (4431a), the width direction other side surface of the length direction front portion of the guide holding portion can be supported by the first-2 guide pin (4431b), the width direction one side surface of the length direction rear portion of the guide holding portion can be supported by the second-1 guide pin (4432a), and the width direction other side surface of the length direction rear portion of the guide holding portion can be supported by the second-2 guide pin (4432b).

[0193] That is, in the present application, in the case where the first wiring, the second wiring, and the third wiring are inserted into the guide holding portion (5000), the lower surface of the guide holding portion is supported by the protruding pins, and the side surfaces of the guide holding portion are supported by the first guide pin and the second guide pin, whereby it is possible to prevent the guide holding portion from being detached in the width direction from the lower mold.

[0194] On the other hand, as described above, the resin can be injected into the inside of the mold in a state where the lower mold (4000) and an upper mold not shown are closed, thereby manufacturing the electrical plug according to the present application, wherein the resin is not injected into a region where the first protruding pin (4421), the second protruding pin (4422), and the third protruding pin (4423) are located, and thus, as described below, a lower first groove portion as described below is formed in an electrical plug region corresponding to the region where the first protruding pin (4421), the second protruding pin (4422), and the third protruding pin (4423) are located, which will be described below.

[0195] Further, the resin can be injected into the inside of the mold in a state where the lower mold (4000) and an upper mold not shown are closed, thereby manufacturing the electrical plug according to the present application, wherein the resin is not injected into a region where the first guide pin (4431) and the second guide pin (4432) are located, and thus, as described below, a lower second groove portion as described below is formed in an electrical plug region corresponding to the region where the first guide pin (4431) and the second guide pin (4432) are located, which will be described below.

[0196] On the other hand, although not shown in the drawings, the upper mold can also include protruding pins for supporting the upper surface of the guide holding portion, similar to the lower mold, in which case the protruding pins included in the lower mold can be defined as a lower first protruding pin, a lower second protruding pin, and a lower third protruding pin, and the protruding pins included in the upper mold can be defined as an upper first protruding pin, an upper second protruding pin, and an upper third protruding pin.

[0197] At this time, the resin can be injected into the inside of the mold in a state where the lower mold (4000) and an upper mold not shown are closed, thereby manufacturing the electrical plug according to the present application, wherein the resin is not injected into a region where the upper first protruding pin (not shown), the upper second protruding pin (not shown), and the upper third protruding pin (not shown) are located, and thus, as described below, an upper first groove portion as described below is formed in an electrical plug region corresponding to the region where the upper first protruding pin (not shown), the upper second protruding pin (not shown), and the upper third protruding pin (not shown) are located, which will be described below.

[0198] On the other hand, in the present application, in the case where the protruding pins are included in the upper mold, it can be understood that the upper first protruding pin is disposed in a region corresponding to the lower first protruding pin, the upper second protruding pin is disposed in a region corresponding to the lower second protruding pin, and the upper third protruding pin is disposed in a region corresponding to the lower third protruding pin.

[0199] The guide holding portion according to another embodiment of the present application will be described in more detail below.

[0200] Figure 24is a schematic view showing a guide holder according to another embodiment of the present application, Figure 25 is a front view showing a guide holder according to another embodiment of the present application, Figure 26 is a schematic view showing a state in which a first wiring, a second wiring, and a third wiring are inserted in a space portion of a guide holder according to another embodiment of the present application.

[0201] First, referring to Figure 24 and Figure 25 , a guide holder (5000) according to another embodiment of the present application includes an upper support plate (5510) disposed to extend in a length direction, a lower support plate (5520) disposed to extend in the length direction at a certain interval apart from the upper support plate (5510) in a height direction, in a region corresponding to the upper support plate, and a side support plate (5530) connecting a width direction one end of the upper support plate and a width direction one end of the lower support plate, and disposed to extend in the length direction.

[0202] More specifically, the width direction one end of the side support plate is disposed continuously with the width direction one end of the upper support plate, and the width direction other end of the side support plate is disposed continuously with the width direction one end of the lower support plate, and the upper support plate, the lower support plate, and the side support plate are disposed to extend in the length direction, so that it can be understood that the guide holder according to the present application has a substantially "shaped cross-sectional structure.

[0203] On the other hand, the guide holder according to another embodiment of the present application includes a space portion (5540) formed by the interval of the upper support plate (5510) and the lower support plate (5520) in the height direction, and as Figure 26 shown, a first wiring (121a), a second wiring (121b), and a third wiring (121c) are inserted in the space portion (540), so that the first wiring, the second wiring, and the third wiring can be aligned in the length direction by the guide holder.

[0204] At this time, as described above, it can be understood that the guide holder according to another embodiment of the present application has a substantially "shaped cross-sectional structure, which can be defined as the width direction other end region of the upper support plate and the width direction other end region of the lower support plate are open.

[0205] Therefore, in the present application, the first wiring, the second wiring, and the third wiring can be inserted in the space portion (5540) of the guide holder through the open regions of the width direction other end region of the upper support plate and the width direction other end region of the lower support plate.

[0206] As described above, in the present application, the first to third wires can be arranged in one direction by the guide holding portion as described above.

[0207] As described above, in the case of the above-mentioned Korean published patent 10-2022-0015540, since the wires are aligned by the first and second protruding pins, the lower mold must include the first and second protruding pins, and it is somewhat difficult to align the wires between the first and second protruding pins.

[0208] However, in the present application, the wires are aligned by the guide holding portion, so that a planar type electrical plug capable of easily aligning the first to third wires can be provided.

[0209] Therefore, the electrical plug according to another embodiment of the present application can be defined as follows: First, referring to the above-mentioned Figures 19 to 21 , the electrical plug (1000) according to another embodiment of the present application includes a plug main body portion (1110), a connection pin portion (1120) exposed to a first side direction from the plug main body portion (1110), a plug auxiliary body portion (1130) extending to a second side direction from the plug main body portion (1110), and a wire portion (1140) provided in continuity with the plug auxiliary body portion (1130).

[0210] Further, the connection pin portion (1120) includes a first connection pin portion (1120a) exposed to the first side direction from the plug main body portion (1110), and a second connection pin portion (1120b) exposed to the first side direction from the plug main body portion (1110) and provided at a certain interval apart from the first connection pin portion (1120a), and the inside of the plug main body portion includes a ground portion.

[0211] Further, referring to Figure 26 , the electrical plug includes a first wire (1121a) connected to the first connection pin portion (120a), a second wire (1121b) connected to the second connection pin portion (1120b), and a third wire (1121c) connected to the ground portion.

[0212] At this time, as shown in Figure 26 , the plug auxiliary body portion (1130) of the electrical plug (1000) according to another embodiment of the present application includes a guide holding portion (5000) provided in the inside of the plug auxiliary body portion for guiding the first to third wires in one direction, including a space portion for inserting the first to third wires.

[0213] On the other hand, as described above, the resin can be injected into the inside of the mold in a state in which the lower mold (4000) and an upper mold not shown are closed, and thus the electrical plug according to the present application can be manufactured, in which the lower first groove portion is formed in the electrical plug region corresponding to the region in which the lower first protruding pin (4421), the lower second protruding pin (4422), and the lower third protruding pin (4423) are located, and the lower second groove portion is formed in the electrical plug region corresponding to the region in which the first guide pin (4431) and the second guide pin (4432) are located, and the upper first groove portion is formed in the electrical plug region corresponding to the region in which the upper first protruding pin (not shown), the upper second protruding pin (not shown), and the upper third protruding pin (not shown) are located.

[0214] More specifically, the plug auxiliary body portion (1130) includes a lower first groove portion located in a first region of a lower portion of the plug auxiliary body portion, wherein the lower first groove portion includes a lower first-1 groove portion (1210) located in a region corresponding to the lower first protruding pin, a lower first-2 groove portion (1220) located in a region corresponding to the lower second protruding pin, and a lower first-3 groove portion (1230) located in a region corresponding to the lower third protruding pin.

[0215] Further, the plug auxiliary body portion (1130) includes a lower second groove portion located in a second region of the lower portion of the plug auxiliary body portion, wherein the lower second groove portion includes a lower second-1 groove portion (1310) located in a region corresponding to the first guide pin, and a lower second-2 groove portion (1320) located in a region corresponding to the second guide pin.

[0216] Further, the plug auxiliary body portion (1130) includes an upper groove portion located in a first region of an upper portion of the plug auxiliary body portion, wherein the upper groove portion includes an upper first groove portion (1610) located in a region corresponding to the upper first protruding pin, an upper second groove portion (1620) located in a region corresponding to the upper second protruding pin, and an upper third groove portion (1630) located in a region corresponding to the upper third protruding pin.

[0217] More specifically, the lower first-1 slot portion (1210) includes a lower first-1-1 slot portion (1210a) in a region corresponding to the lower first-1 protruding pin, and a lower first-1-2 slot portion (1210b) in a region corresponding to the lower first-2 protruding pin, the lower first-2 slot portion (1220) includes a lower first-2-1 slot portion (1220a) in a region corresponding to the lower second-1 protruding pin, and a lower first-2-2 slot portion (1220b) in a region corresponding to the lower second-2 protruding pin, the lower first-3 slot portion (1230) includes a lower first-3-1 slot portion (1230a) in a region corresponding to the lower third-1 protruding pin, and a lower first-3-2 slot portion (1230b) in a region corresponding to the lower third-2 protruding pin.

[0218] Further, the lower second-1 slot portion (1310) includes a lower second-1-1 slot portion (1310a) in a region corresponding to the first-1 guide pin, and a lower second-1-2 slot portion (1310b) in a region corresponding to the first-2 guide pin, the lower second-2 slot portion (1320) includes a lower second-2-1 slot portion (1320a) in a region corresponding to the second-1 guide pin, and a lower second-2-2 slot portion (1320b) in a region corresponding to the second-2 guide pin.

[0219] Further, the upper first slot portion (1610) includes an upper first-1 slot portion (1610a) in a region corresponding to the upper first-1 protruding pin, and an upper first-2 slot portion (1610b) in a region corresponding to the upper first-2 protruding pin, the upper second slot portion (1620) includes an upper second-1 slot portion (1620a) in a region corresponding to the upper second-1 protruding pin, and an upper second-2 slot portion (1620b) in a region corresponding to the upper second-2 protruding pin, the upper third slot portion (1630) includes an upper third-1 slot portion (1630a) in a region corresponding to the upper third-1 protruding pin, and an upper third-2 slot portion (1630b) in a region corresponding to the upper third-2 protruding pin.

[0220] At this time, it can be understood that the depth of the lower second slot portion is greater than the depth of the lower first slot portion, and it can be understood that the lower first slot portion is disposed in a region corresponding to the upper slot portion.

[0221] As described above, a planar type electric plug can be provided, and alignment of the first to third wirings can be easily achieved by aligning the wires by the guide holding portions.

[0222] Further, in the present application, when the first wire, the second wire and the third wire are inserted into the guide holding portion (5000), the bottom surface of the guide holding portion is supported by the lower protruding pin, and thus the bottom surface of the guide holding portion can be positioned at a position at a certain distance from the inner surface of the lower mold portion (4420) for injection molding of the plug auxiliary body portion.

[0223] Further, in the present application, when the first wire, the second wire and the third wire are inserted into the guide holding portion (5000), the upper surface of the guide holding portion is supported by the upper protruding pin, and thus the upper surface of the guide holding portion can be positioned at a certain distance from the inner surface of the upper mold portion (not shown) for injection molding of the plug auxiliary body portion.

[0224] Further, in the present application, when the first wire, the second wire and the third wire are inserted into the guide holding portion (5000), the bottom surface of the guide holding portion is supported by the protruding pin, and the side surface of the guide holding portion is supported by the first guide pin and the second guide pin, thereby preventing the guide holding portion from being separated in the lower mold width direction.

Claims

1. An electrical plug, characterized in that, The electrical plug includes: a main plug body; connecting pins protruding from the main plug body in a first direction; an auxiliary plug body extending from the main plug body in a second direction; and a wiring portion continuously disposed with the auxiliary plug body. The connector pin portion includes: a first connector pin portion exposed from the plug main body portion toward a first side; and a second connector pin portion exposed from the plug main body portion toward a first side and spaced apart from the first connector pin portion at a certain interval, and the interior of the plug main body portion includes a grounding portion. The electrical plug includes a first wire connected to the first connecting pin; a second wire connected to the second connecting pin; and a third wire connected to the grounding portion. The plug auxiliary body includes: a guide pad for guiding the first wire, the second wire, and the third wire in one direction; and a first resin layer covering the guide pad, the first wire, the second wire, and the third wire.

2. The electrical plug according to claim 1, characterized in that, The guide pad portion includes: a first substrate including an upper surface and a lower surface opposite to the upper surface; an upper first groove located on the upper surface side of the first substrate, on one side of the width direction of the guide pad portion, and disposed in the length direction of the guide pad portion; an upper second groove located on the upper surface side of the first substrate, on the other side of the width direction of the guide pad portion, and disposed in the length direction of the guide pad portion; and an upper third groove disposed between the upper first groove and the upper second groove, spaced apart from the upper first groove and the upper second groove respectively, and disposed in the length direction of the guide pad portion. The first wiring is disposed in the upper first groove and guided, the second wiring is disposed in the upper second groove and guided, and the third wiring is disposed in the upper third groove and guided.

3. The electrical plug according to claim 2, characterized in that, The guide pad portion includes: an upper first protrusion disposed at the connection between the upper first groove and the upper third groove and disposed along the length direction of the guide pad portion; an upper second protrusion disposed at a certain interval from the upper first protrusion at the connection between the upper second groove and the upper third groove and disposed along the length direction of the guide pad portion; an upper third protrusion disposed adjacent to the upper first groove, disposed on one side of the guide pad portion along the width direction and disposed along the length direction of the guide pad portion; and an upper fourth protrusion disposed adjacent to the upper second groove, disposed on the other side of the guide pad portion along the width direction and disposed along the length direction of the guide pad portion.

4. The electrical plug according to claim 3, characterized in that, The upper first protrusion includes a first through hole disposed in a specific area of ​​the upper first protrusion, disposed in the height direction of the guide pad portion, and extending from the upper surface of the first substrate to the lower surface of the first substrate; the upper second protrusion includes a second through hole disposed in a specific area of ​​the upper second protrusion, disposed in the height direction of the guide pad portion, and extending from the upper surface of the first substrate to the lower surface of the first substrate; the upper third protrusion includes a third through hole disposed in a specific area of ​​the upper third protrusion, disposed in the height direction of the guide pad portion, and extending from the upper surface of the first substrate to the lower surface of the first substrate; and the upper fourth protrusion includes a fourth through hole disposed in a specific area of ​​the upper fourth protrusion, disposed in the height direction of the guide pad portion, and extending from the upper surface of the first substrate to the lower surface of the first substrate.

5. The electrical plug according to claim 3, characterized in that, The guide pad portion further includes a lower first groove located on the lower surface side of the first substrate and disposed along the length direction of the guide pad portion.

6. The electrical plug according to claim 1, characterized in that, The guide pad portion includes: an upper flat plate pad portion located at the upper part of the guide pad portion in the height direction and disposed in the length direction of the guide pad portion; a lower flat plate pad portion disposed opposite to the upper flat plate pad portion at the lower part of the guide pad portion in the height direction and disposed in the length direction of the guide pad portion; a first semi-circular pad portion located on one side of the guide pad portion in the width direction, with one side continuously disposed with one side of the upper flat plate pad portion and the other side continuously disposed with one side of the lower flat plate pad portion, and disposed in the length direction of the guide pad portion, having a semi-circular cross-section; and a second semi-circular pad portion located opposite to the first semi-circular pad portion on the other side of the guide pad portion in the width direction, with one side continuously disposed with one side of the upper flat plate pad portion and the other side continuously disposed with one side of the lower flat plate pad portion, and disposed in the length direction of the guide pad portion, having a semi-circular cross-section. The guide pad portion includes a first space portion formed by the continuous arrangement of the upper flat pad portion, the first side semicircular pad portion, the lower flat pad portion and the second side semicircular pad portion, and the first wiring, the second wiring and the third wiring are disposed in the first space portion.

7. The electrical plug according to claim 6, characterized in that, The inner surfaces of the upper flat pad, the first semi-circular pad, the lower flat pad, and the second semi-circular pad each include adhesive portions. When the first wire, the second wire, and the third wire are disposed in the first space, the first wire, the second wire, and the third wire are adhered to the inner surfaces of the upper flat pad, the first semi-circular pad, the lower flat pad, and the second semi-circular pad through the adhesive portions.

8. The electrical plug according to claim 7, characterized in that, The first wiring is adhered to the inner surface of the first side semicircular pad, the second wiring is adhered to the inner surface of the second side semicircular pad, and the third wiring is adhered to the inner surfaces of the upper flat pad and the lower flat pad.

9. The electrical plug according to claim 1, characterized in that, The material of the first resin layer is PVC resin, ABS resin or PC resin, and the material of the guide pad is PVC resin, ABS resin or PC resin.

10. An electrical plug, characterized in that, The electrical plug includes: a main plug body; connecting pins protruding from the main plug body in a first direction; an auxiliary plug body extending from the main plug body in a second direction; and a wiring portion continuously disposed with the auxiliary plug body. The connector pin portion includes: a first connector pin portion exposed from the plug main body portion toward a first side; and a second connector pin portion exposed from the plug main body portion toward a first side and spaced apart from the first connector pin portion at a certain interval, and the interior of the plug main body portion includes a grounding portion. The electrical plug includes a first wire connected to the first connecting pin; a second wire connected to the second connecting pin; and a third wire connected to the grounding portion. The plug auxiliary body includes a guide holding portion disposed inside the plug auxiliary body for guiding the first wire to the third wire in one direction, including a space portion for inserting the first wire to the third wire.

11. The electrical plug according to claim 10, characterized in that, The guide retaining part includes: an upper support plate extending in the length direction; a lower support plate that is spaced apart from the upper support plate in the height direction, located in the region corresponding to the upper support plate, and extending in the length direction; and a side support plate that connects one end of the upper support plate in the width direction and one end of the lower support plate in the width direction, and extends in the length direction.

12. The electrical plug according to claim 11, characterized in that, The side support plate has one end in the width direction that is continuously connected to one end in the width direction of the upper support plate, and the other end in the width direction of the side support plate is continuously connected to one end in the width direction of the lower support plate. The upper support plate, the lower support plate, and the side support plate extend in the length direction, thereby giving the guide holding portion a [missing information]. "Shaped cross-section structure." 13. The electrical plug according to claim 12, characterized in that, The guide retaining portion includes a space formed by the interval between the upper support plate and the lower support plate in the height direction.

14. The electrical plug according to claim 10, characterized in that, The plug auxiliary body portion includes: a lower first groove portion located in a first region of the lower part of the plug auxiliary body portion, wherein the lower first groove portion includes: a lower first-1 groove portion located at one end of the plug auxiliary body portion in the length direction; and a lower first-2 groove portion located at the other end of the plug auxiliary body portion in the length direction, spaced apart from the lower first-1 groove portion.

15. The electrical plug according to claim 14, characterized in that, The plug auxiliary body portion includes: a lower second groove portion located in a second region at the lower part of the plug auxiliary body portion, wherein the lower second groove portion includes: a lower second-1 groove portion disposed between the lower first-1 groove portion and the lower first-2 groove portion, located on one side of the length direction of the plug auxiliary body portion; and a lower second-2 groove portion disposed at a certain interval between the lower second-1 groove portion and the lower first-1 groove portion, located on the other side of the length direction of the plug auxiliary body portion.

16. The electrical plug according to claim 15, characterized in that, The plug auxiliary body portion includes: an upper groove portion located in a first region on the upper part of the plug auxiliary body portion, wherein the upper groove portion includes: an upper first groove portion located at one end of the plug auxiliary body portion in the length direction; and an upper second groove portion disposed separately from the upper first groove portion and located at the other end of the plug auxiliary body portion in the length direction.

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