Grounding structure of vehicle inlet

Abstract

The present invention relates to a vehicle inlet grounding structure, comprising a connector (100) to which a wire (10) is connected, the wire comprising a metal wire through which current flows and a shielding mesh (11) surrounding the metal wire, and a vehicle body grounding part (200) connected to the vehicle body for grounding. At least a portion of the shielding mesh (11) is exposed to the outside and is coupled and fixed to the connector (100). One side of the relay part (300) is in contact with the portion of the shielding mesh (11) that is exposed to the outside, and the other side is in contact with the vehicle body grounding part (200), thereby electrically connecting the shielding mesh (11) and the vehicle body grounding part (200). Accordingly, grounding performance and shielding performance can be improved.

Description

Technology Field

[0001] The present invention relates to a vehicle inlet grounding structure, and more specifically, to a vehicle inlet grounding structure capable of improving the shielding performance of an inlet housing and reducing productivity and manufacturing costs. Background Technology

[0002] Grounding in the inlet housing of an electric vehicle is an essential element for ensuring the safety and performance of the vehicle. Grounding prevents electric shock or vehicle damage caused by leakage current and protects the vehicle from overvoltage. In addition, it can prevent interference with in-vehicle devices caused by electromagnetic waves generated when high voltage is applied.

[0003] Figure 1 is a diagram illustrating a pigtail grounding structure used for grounding a conventional inlet housing. As shown in Figure 1, a pigtail grounding structure was used for grounding the inlet housing of an electric vehicle in the conventional case. The pigtail grounding structure has the disadvantage that grounding performance decreases as the length of the grounding wire increases.

[0004] In addition, since the pigtail grounding structure connects to the vehicle body by twisting the braided wire and pulling it out long, the bundle of braided wire formed by twisting the wire is exposed to the outside for a long distance, resulting in reduced shielding performance.

[0005] Furthermore, in the case of a pigtail grounding structure, arranging the vehicle's components within the limited space inside the vehicle makes it difficult to configure the shortest possible circuit for the grounding wire, making it practically difficult to achieve more effective shielding performance.

[0006] Therefore, due to the pigtail grounding structure, the grounding and shielding performance are insufficient, making it difficult to properly guarantee the safety and performance of electric vehicles.

[0007] In addition, since the pigtail grounding structure requires various processes such as stripping and crimping numerous wires to form it, the labor cost increases and there is a high possibility of quality variation during assembly.

[0008] In other words, the pigtail grounding structure increases manufacturing costs, reduces productivity, and fails to guarantee product quality.

[0009] The disadvantages of this pigtail grounding structure are further exacerbated in the reality where high-voltage vehicle charging is rapidly becoming widespread and used.

[0010] Therefore, there is a need for measures to improve the shielding performance of electric vehicle inlet housings and reduce productivity and manufacturing costs. Prior art literature

[0012] Republic of Korea Published Patent 10-2017-0061955 Braided Cable ('17.06.07) The problem to be solved

[0013] The present invention has been devised to solve the above-mentioned problems and aims to provide a vehicle inlet grounding structure that can improve the shielding performance of the inlet housing and reduce productivity and manufacturing costs. means of solving the problem

[0014] To solve the above-mentioned problem, the present invention is characterized by comprising a connector to which a wire is connected, the connector including a metal wire through which current flows and a shielding mesh surrounding the metal wire, and a body grounding part connected to a vehicle body for grounding, wherein at least a portion of the shielding mesh is exposed to the outside and is coupled to and fixed with the connector, and one side is in contact with the portion of the shielding mesh exposed to the outside and the other side is in contact with the body grounding part, thereby electrically connecting the shielding mesh and the body grounding part.

[0015] In addition, the above relay unit can be contacted in a manner where one side surrounds and pressurizes the shielding net.

[0016] In addition, the relay unit includes an upper relay unit, one side of which is in contact with the upper surface of the shielding net and the other side of which is in contact with the vehicle body grounding unit, and a lower relay unit, one side of which is in contact with the lower surface of the shielding net and the other side of which is in contact with the vehicle body grounding unit, and the upper relay unit and the lower relay unit may be interlocked and combined to form the relay unit.

[0017] Additionally, the upper relay member and the lower relay member are formed with the same shape as each other, and the upper relay member includes an upper central surface facing the front of the connector, an upper wire insertion hole formed by cutting the lower side of the upper central surface so that a part of the wire is inserted, an upper ground contact part formed by extending and bending from the upper central surface and contacting the vehicle body grounding part, and an upper shielding contact part formed by extending and bending from the upper wire insertion hole and contacting the shielding mesh, and the lower relay member may include a lower central surface facing the front of the connector, a lower wire insertion hole formed by cutting the upper side of the lower central surface so that a part of the wire is inserted, a lower ground contact part formed by extending and bending from the lower central surface and contacting the vehicle body grounding part, and a lower shielding contact part formed by extending and bending from the lower wire insertion hole and contacting the shielding mesh.

[0018] Additionally, the upper relay member may further include an upper coupling surface formed by extending and bending from the lower side of the upper center surface, and the lower relay member may further include a lower coupling surface formed by extending and bending from the upper side of the lower center surface, which comes into contact with the upper coupling surface when the upper relay member and the lower relay member are joined together.

[0019] In addition, when the upper relay part and the lower relay part are joined together, the upper shielding contact part and the lower shielding contact part can be joined to form a truncated cone shape.

[0020] In addition, the upper shielding contact portion and the lower shielding contact portion may be formed by cutting in a certain pattern to have elasticity.

[0021] Additionally, the upper shielding contact portion includes a plurality of first slits formed by cutting along the direction from the upper wire insertion hole toward the end of the upper shielding contact portion, and the lower shielding contact portion includes a plurality of second slits formed by cutting along the direction from the lower wire insertion hole toward the end of the lower shielding contact portion, and the plurality of first slits and the plurality of second slits may be spaced apart at a constant interval.

[0022] Additionally, the upper relay part further includes an upper connector coupling part formed by extending and bending from the upper side of the upper center surface, and the lower relay part further includes a lower connector coupling part formed by extending and bending from the lower side of the lower center surface, and the connector may include an upper fixing groove formed in a tubular shape with one end open on the upper side of the connector and into which the upper connector coupling part is inserted and fixed, and a lower fixing groove formed in a tubular shape with one end open on the lower side of the connector and into which the lower connector coupling part is inserted and fixed.

[0023] Additionally, the upper connector coupling portion may include an upper coupling projection formed protruding from one surface, and the lower connector coupling portion may include a lower coupling projection formed protruding from one surface; the upper fixing groove may include an upper locking groove formed by being recessed from the inner surface so that the upper coupling projection is inserted and coupled thereto, and the lower fixing groove may include a lower locking groove formed by being recessed from the inner surface so that the lower coupling projection is inserted and coupled thereto.

[0024] Additionally, the upper locking groove may be formed by penetrating the inner surface of the upper fixing groove, and the lower locking groove may be formed by penetrating the inner surface of the lower fixing groove.

[0025] Additionally, the upper connector coupling portion is formed in a cantilever shape by cutting the periphery of the upper coupling projection and further includes an upper coupling arm on which the upper coupling projection is formed, and the lower connector coupling portion is formed in a cantilever shape by cutting the periphery of the lower coupling projection and further includes a lower coupling arm on which the lower coupling projection is formed, and the upper coupling projection may be formed by bending the upper coupling arm and the lower coupling projection may be formed by bending the lower coupling arm.

[0026] Additionally, the upper connector coupling part may further include an upper stopper formed such that the end of the upper coupling arm is bent in the direction in which the upper coupling projection protrudes, and the upper stopper contacts the inner surface of the upper fixing groove when the upper coupling projection is inserted into the upper locking groove, and the lower connector coupling part may further include a lower stopper formed such that the end of the lower coupling arm is bent in the direction in which the lower coupling projection protrudes, and the lower stopper contacts the inner surface of the lower fixing groove when the lower coupling projection is inserted into the lower locking groove.

[0027] In addition, the upper connector coupling part, the lower connector coupling part, the upper fixing groove, and the lower fixing groove may be formed in multiple numbers.

[0028] Additionally, the connector further includes a plurality of guide protrusions formed to protrude from the side, the plurality of guide protrusions are spaced apart from each other, and the upper ground contact portion and the lower ground contact portion can be coupled and inserted between the plurality of guide protrusions.

[0029] In addition, the body grounding portion may include a body grounding body formed in a bar shape, one end of which is electrically connected to the vehicle body, and a grounding surface that extends from the other end of the body grounding body and faces the side of the connector, with a width wider than the width of the body grounding body and in contact with the relay portion. Effects of the invention

[0031] An embodiment of the present invention can be expected to have various effects including the following according to the above configuration. However, the present invention is not required to exhibit all of the following effects.

[0032] First, the relay unit is firmly fixed to the connector and makes solid contact with the vehicle body grounding unit and shielding mesh, thereby enhancing grounding performance.

[0033] In addition, it allows the shielding net to be completely covered, thereby enhancing shielding performance.

[0034] In addition, grounding can be achieved simply by connecting the relay unit to the connector. In other words, grounding can be done more conveniently.

[0035] In addition, it can reduce labor costs, thereby increasing productivity.

[0036] In addition, manufacturing costs can be reduced by decreasing labor hours. Brief explanation of the drawing

[0038] FIG. 1 is a drawing illustrating a pigtail grounding structure used for conventional inlet housing grounding. FIG. 2 is a perspective view illustrating a vehicle inlet grounding structure according to an embodiment of the present invention. FIG. 3 is an exploded perspective view of the vehicle inlet grounding structure of FIG. 2. FIG. 4 is a cross-sectional view along the cutting line IV-IV of FIG. 2, FIG. 5 is a perspective view illustrating the connector of FIG. 2, FIG. 6 is a perspective view showing the connector of FIG. 2 viewed from a different direction than FIG. 5. FIG. 7 is a perspective view illustrating the relay section of FIG. 2. FIG. 8 is a perspective view illustrating the relay unit of FIG. 2 viewed from a different direction than FIG. 7. FIG. 9 is a cross-sectional view along the cutting line IX-IX of FIG. 7, FIG. 10 is a drawing sequentially illustrating a method for forming a vehicle inlet grounding structure according to an embodiment of the present invention. Specific details for implementing the invention

[0039] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

[0040] FIG. 1 is a drawing illustrating a pigtail grounding structure used for conventional inlet housing grounding, FIG. 2 is a perspective view illustrating a vehicle inlet grounding structure according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of the vehicle inlet grounding structure of FIG. 2, FIG. 4 is a cross-sectional view along the cutting line Ⅳ-Ⅳ of FIG. 2, FIG. 5 is a perspective view illustrating a connector of FIG. 2, FIG. 6 is a perspective view illustrating the connector of FIG. 2 viewed from a different direction than FIG. 5, FIG. 7 is a perspective view illustrating a relay part of FIG. 2, FIG. 8 is a perspective view illustrating the relay part of FIG. 2 viewed from a different direction than FIG. 7, FIG. 9 is a cross-sectional view along the cutting line Ⅸ-Ⅸ of FIG. 7, and FIG. 10 is a drawing sequentially illustrating a method for forming a vehicle inlet grounding structure according to an embodiment of the present invention.

[0041] As illustrated in these drawings, a vehicle inlet grounding structure according to one embodiment of the present invention includes a connector (100) to which a wire (10) is connected, a vehicle body grounding part (200), and a relay part (300).

[0042] A vehicle inlet grounding structure according to one embodiment of the present invention improves grounding and shielding performance by eliminating the pig-tail formed in a conventional pig-tail grounding structure. By connecting a relay unit (300) to a connector (100), the shielding mesh (11) surrounding the wire (10) and the vehicle body grounding unit (200) are electrically connected by the relay unit (300) to provide stable grounding and prevent incomplete shielding problems. Furthermore, since the grounding structure can be formed simply by stripping the insulation from the wire (10) and connecting the relay unit (300) to the connector (100), productivity can be increased and production costs can be reduced.

[0043] Below, each component of the vehicle inlet grounding structure according to the present invention will be described in detail.

[0044] The wire (10) is connected to the connector (100) while wrapped by a shielding mesh (11). Additionally, the wire (10) may be protected by a covering. That is, the wire (10) comprises a metal wire made of metal through which current flows, a shielding mesh (11) that wraps the metal wire, and a covering that wraps the metal wire and the shielding mesh (11). At this time, the wire (10) is connected to the connector (100) with a portion of the covering cut so that a portion of the shielding mesh (11) is exposed to the outside. Through this, the shielding mesh (11) is exposed to the outside, and as described later, the shielding mesh (11) and the relay unit (300) can come into contact.

[0045] The shielding mesh (11) is a braided wire made by weaving several strands of wire (usually copper or aluminum) together. It mechanically protects the metal wire through which current flows by wrapping it, prevents electromagnetic waves generated as current flows through the metal wire from leaking out, and also prevents electromagnetic waves generated from other devices outside the metal wire from penetrating into the metal wire. Meanwhile, the shielding mesh (11) is grounded to safely discharge unnecessary current. Therefore, the shielding mesh (11) is electrically connected to the vehicle body grounding unit (200) through the relay unit (300) and grounded.

[0046] And, as illustrated in FIG. 1, the conventional pigtail grounding structure is formed by twisting braided wires into a pigtail shape and connecting them to a grounding point. This is formed in the order of stripping the wire, twisting the braided wire, connecting to the grounding point (mainly by soldering, screwing, or crimping through terminals), and insulation treatment (finishing with a heat shrink tube or wrapping with insulating tape). In other words, since it involves numerous processes, productivity is reduced and production costs increase.

[0047] On the other hand, in the vehicle inlet grounding structure according to one embodiment of the present invention, the process of twisting the shielding mesh (11) and the insulation process can be omitted, and connecting to the grounding point can be done very simply by connecting the relay part (300) to the connector (100). Therefore, productivity can be greatly increased and production costs can be greatly reduced.

[0048] The connector (100) is connected to a wire (10) wrapped by a shielding mesh (11) and is located on the inlet side of the vehicle. Since the relay part (300) is coupled and fixed to the connector (100), an upper fixing groove (110) and a lower fixing groove (120) for coupling are formed in the connector (100) for this purpose.

[0049] The upper fixing groove (110) is formed in a tubular shape with one end open on the upper side of the connector (100), and the upper connector coupling part (316) of the upper relay part (310) is inserted and fixed.

[0050] More specifically, the upper fixing groove (110) includes an upper locking groove (111). The upper locking groove (111) is formed by being recessed into the inner surface of the upper fixing groove (110), so that the upper coupling projection (3161) of the upper connector coupling part (316) is inserted and coupled thereto. Furthermore, it is preferable that the upper locking groove (111) be formed by penetrating the inner surface of the upper fixing groove (110). Through this, the upper coupling projection (3161) can be exposed to the outside, and the user can remove the upper connector coupling part (316) from the upper fixing groove (110) by pressing the upper coupling projection (3161).

[0051] The lower fixing groove (120) is formed in a tubular shape with one end open on the lower side of the connector (100), and the lower connector coupling part (326) of the lower relay part (320) is inserted and fixed.

[0052] More specifically, the lower fixing groove (120) includes a lower locking groove (121). The lower locking groove (121) is formed by being recessed into the inner surface of the lower fixing groove (120), so that the lower coupling projection (3261) of the lower connector coupling part (326) is inserted and coupled thereto. Furthermore, it is preferable that the lower locking groove (121) be formed by penetrating the inner surface of the lower fixing groove (120). Through this, the lower coupling projection (3261) can be exposed to the outside, and the user can remove the lower connector coupling part (326) from the lower fixing groove (120) by pressing the lower coupling projection (3261).

[0053] In addition, it is preferable that the lower fixing groove (120) be formed at a position symmetrical to the upper fixing groove (110) with the same shape.

[0054] In addition, it is preferable that the upper fixing groove (110) and the lower fixing groove (120) be formed in the same number as the upper connector coupling part (316) and the lower connector coupling part (326), respectively. At this time, each of the plurality of upper fixing grooves (110) and each of the plurality of lower fixing grooves (120) are spaced apart from each other at the same interval as each of the plurality of upper connector coupling parts (316) and each of the plurality of lower connector coupling parts (326) are spaced apart from each other.

[0055] Additionally, guide protrusions (130) may be formed on the connector (100). The guide protrusions (130) are formed by protruding from the side of the connector (100) and are formed in multiple numbers, with the multiple guide protrusions (130) spaced apart from each other. The upper ground contact portion (313) and the lower ground contact portion (323) are joined and inserted between the spaced guide protrusions (130). Therefore, when the relay portion (300) is inserted into the connector (100) and comes into contact with the vehicle body ground portion (200), it comes into contact toward a more accurate position due to the guide protrusions (130).

[0056] The vehicle body grounding section (200) is connected to the vehicle body and is formed of a conductor. The vehicle body grounding section (200) is connected to the shielding net (11) through the relay section (300), and ultimately the vehicle body and the shielding net (11) are electrically connected. Through this, grounding becomes possible.

[0057] More specifically, the vehicle body grounding portion (200) is preferably formed of metal. Additionally, the vehicle body grounding portion (200) is composed of a vehicle body grounding body (210) and a grounding surface (220). The vehicle body grounding body (210) is formed in a bar shape, with one end electrically connected to the vehicle body, and the grounding surface (220) is formed by extending from the other end of the vehicle body grounding body (210) to face the side of the connector (100), and is formed with a width wider than the width of the vehicle body grounding body (210) to face the relay portion (300).

[0058] That is, when the vehicle body grounding part (200) comes into contact with the relay part (300), in order to form a contact surface more efficiently, the grounding surface (220) is formed with a width wider than the width of the vehicle body grounding body (210), and thereby the upper grounding contact part (313) and lower grounding contact part (323) of the relay part (300) can come into contact with the vehicle body grounding part (200) more reliably and be electrically connected.

[0059] In addition, it is preferable that the body grounding portion (200) be formed in multiple numbers and placed on both sides of the connector (100).

[0060] The relay unit (300) is coupled to and fixed with the connector (100), and one side is in contact with the part of the shielding mesh (11) that is exposed to the outside, while the other side is in contact with the vehicle body grounding unit (200), thereby electrically connecting the shielding mesh (11) and the vehicle body grounding unit (200). The relay unit (300) is capable of shielding electromagnetic waves and is composed of a conductor to electrically connect the shielding mesh (11) and the vehicle body grounding unit (200).

[0061] At this time, it is preferable that the relay section (300) contacts the shielding net (11) in a manner where one side wraps around and presses against it. More specifically, the upper relay section (310) presses against the upper side of the shielding net (11), and the lower relay section (320) presses against the lower side of the shielding net (11), so that it is pressed up and down while wrapped by the upper relay section (310) and the lower relay section (320).

[0062] In addition, it is desirable for the relay section (300) to completely enclose the shielding net (11) exposed to the outside. This allows the shielding performance to be further enhanced. That is, it is desirable for the upper shielding contact section (314) and the lower shielding contact section (324), described later, to be formed with a length sufficient to completely enclose and cover the shielding net (11) exposed to the outside.

[0063] In addition, the relay part (300) is preferably composed of a particularly elastic material and is composed of conductive plastic or conductive synthetic resin.

[0064] In addition, it is preferable that the relay unit (300) be produced by an injection molding method. Through this, the relay unit (300) can be mass-produced and production costs can be reduced.

[0065] The relay section (300) is composed of an upper relay section (310) and a lower relay section (320), and it is preferable that the upper relay section (310) and the lower relay section (320) be formed with the same shape and a structure symmetrical to each other. That is, the upper relay section (310) and the lower relay section (320) are interlocked and combined to form the relay section (300).

[0066] One side of the upper relay section (310) is in contact with the upper surface of the shielding net (11), and the other side is in contact with the vehicle body grounding section (200). That is, one side of the upper relay section (310) is in contact with the upper surface of the shielding net (11) to cover it, and the other side is in contact with the vehicle body grounding section (200) to electrically connect the shielding net (11) and the vehicle body grounding section (200).

[0067] The upper relay section (310) is composed of an upper center surface (311), an upper wire insertion hole (312), an upper ground contact section (313), an upper shielding contact section (314), an upper coupling surface (315), and an upper connector coupling section (316).

[0068] The upper center surface (311) is a surface facing the front of the connector (100) and corresponds to the center of the upper relay section (310). Centered on the upper center surface (311), an upper wire insertion hole (312), an upper ground contact section (313), an upper shielding contact section (314), an upper coupling surface (315), and an upper connector coupling section (316) are formed.

[0069] The upper wire insertion hole (312) is formed by cutting the lower side of the upper center surface (311), and a part of the wire (10) is inserted.

[0070] The upper ground contact portion (313) is formed by extending from the upper center surface (311) and bending to come into contact with the vehicle body ground portion (200). That is, the upper ground contact portion (313) is inserted between a plurality of guide protrusions (130) and comes into contact with the contact surface (220) of the vehicle body ground portion (200). At this time, the upper ground contact portion (313) is formed in multiple numbers, and it is preferable that the plurality of upper ground contact portions (313) are each arranged on both sides of the upper center surface (311).

[0071] The upper shielding contact portion (314) is formed by extending from the upper wire insertion hole (312) and bending to come into contact with the shielding net (11). In particular, the upper shielding contact portion (314) is combined with the lower shielding contact portion (324) to form a truncated cone shape. That is, the upper shielding contact portion (314) is formed with a structure that converges toward the center as it approaches the end, thereby making more secure contact with the shielding net (11).

[0072] In addition, it is preferable that the upper shielding contact portion (314) be formed by cutting in a certain pattern to have elasticity. However, it is preferable that the portion cut for shielding performance be formed to a minimum.

[0073] Accordingly, it is preferable that a plurality of first cut slits (3141) be formed in the upper shielding contact portion (314) by cutting along the direction from the upper wire insertion hole (312) toward the end of the upper shielding contact portion (314). The plurality of first cut slits (3141) are arranged along the circumference of the upper wire insertion hole (312) at regular intervals. Accordingly, during the process of the upper relay portion (310) being coupled to the connector (100), the upper shielding contact portion (314) is deformed and comes into firm contact with the shielding mesh (11).

[0074] The upper connecting surface (315) is formed by extending from the lower side of the upper center surface (311) and bending, and comes into contact with the lower connecting surface (325) described later when the upper relay part (310) and the lower relay part (320) are joined together. This guides the upper relay part (310) and the lower relay part (320) to be joined together in the correct position.

[0075] The upper connector coupling part (316) is formed by extending from the upper side of the upper center surface (311) and bending, and is a part that is inserted into and fixed in the upper fixing groove (110).

[0076] More specifically, the upper connector coupling part (316) includes an upper coupling projection (3161) formed protruding from one side. The upper coupling projection (3161) is inserted into the upper catch groove (111) of the upper fixing groove (110), thereby ensuring that the upper connector coupling part (316) is fixed without falling out after being inserted into the upper fixing groove (110).

[0077] Additionally, the upper connector coupling part (316) is formed in a cantilever shape by cutting around the upper coupling projection (3161), and it is preferable to further include an upper coupling arm (3162) on which the upper coupling projection (3161) is formed.

[0078] The upper connecting arm (3162) is cut from the upper connector connecting part (316) to form a cantilever shape, and an upper connecting projection (3161) is formed on the upper connecting arm (3162). Accordingly, the upper connecting arm (3162) forms a structure having elasticity.

[0079] The movement of the upper coupling arm (3162) is described in detail as follows. When the upper connector coupling part (316) is inserted into the upper fixing groove (110), the protruding upper coupling projection (3161) comes into contact with the inner surface of the upper fixing groove (110) and is pressed, thereby causing the upper coupling arm (3162) to bend. That is, the upper connector coupling part (316) can be easily inserted. After that, once the upper coupling projection (3161) is inserted into the upper locking groove (111), the upper coupling projection (3161) is no longer pressed, and the upper coupling arm (3162) returns to its original state.

[0080] At this time, it is preferable that the upper connecting projection (3161) be formed by bending the upper connecting arm (3162). Through this, the upper connecting projection (3161) can form a more elastic structure.

[0081] Additionally, the upper connector coupling part (316) may further include an upper stopper (3163) formed by bending the end of the upper coupling arm (3162) in the direction in which the upper coupling projection (3161) protrudes. The upper stopper (3163) comes into contact with the inner surface of the upper fixing groove (110) when the upper coupling projection (3161) is inserted into the upper locking groove (111). Through this, when the upper connector coupling part (316) is inserted into the upper fixing groove (110), the frictional force is increased, allowing it to be stably fixed.

[0082] In addition, it is preferable that the upper connector coupling part (316) be formed in multiple numbers to correspond to the multiple upper fixing grooves (110).

[0083] The lower relay section (320) has a structure symmetrical to the upper relay section (310) described above. Accordingly, one side of the lower relay section (310) is in contact with the lower surface of the shielding net (11), and the other side is in contact with the vehicle body grounding section (200). That is, one side of the lower relay section (320) is in contact with the lower surface of the shielding net (11) to cover it, and the other side is in contact with the vehicle body grounding section (200) to electrically connect the shielding net (11) and the vehicle body grounding section (200).

[0084] The lower relay section (320) is composed of a lower center surface (321), a lower wire insertion hole (322), a lower grounding contact section (323), a lower shielding contact section (324), a lower coupling surface (325), and a lower connector coupling section (326).

[0085] The lower center surface (321) is a surface facing the front of the connector (100) and corresponds to the center of the lower relay section (320). Centered on the lower center surface (321), a lower wire insertion hole (322), a lower ground contact section (323), a lower shielding contact section (324), a lower coupling surface (325), and a lower connector coupling section (326) are formed.

[0086] The lower wire insertion hole (322) is formed by cutting the upper side of the lower center surface (321), and a part of the wire (10) is inserted. Accordingly, the wire (10) is wrapped by the upper wire insertion hole (312) and the lower wire insertion hole (322).

[0087] The lower ground contact portion (323) is formed by extending from the lower center surface (321) and bending to come into contact with the vehicle body ground portion (200). That is, the lower ground contact portion (323) is inserted between a plurality of guide protrusions (130) and comes into contact with the contact surface (220) of the vehicle body ground portion (200). At this time, the lower ground contact portion (323) is formed in multiple numbers, and it is preferable that the plurality of lower ground contact portions (323) are each arranged on both sides of the lower center surface (321).

[0088] The lower shielding contact portion (324) is formed by extending from the lower wire insertion hole (322) and bending to come into contact with the shielding net (11). In particular, the lower shielding contact portion (324) is combined with the upper shielding contact portion (314) to form a truncated cone shape. That is, the lower shielding contact portion (324) is formed with a structure that converges toward the center as it approaches the end, thereby making more secure contact with the shielding net (11).

[0089] In addition, it is preferable that the lower shielding contact portion (324) be formed by cutting in a certain pattern to have elasticity. However, it is preferable that the portion cut for shielding performance be formed to a minimum.

[0090] Accordingly, it is preferable that a plurality of second slits (3241) be formed in the lower shielding contact portion (324) by cutting along the direction from the lower wire insertion hole (322) toward the end of the lower shielding contact portion (324). The plurality of second slits (3241) are arranged along the circumference of the lower wire insertion hole (322) at regular intervals. Accordingly, during the process of the lower relay portion (320) being coupled to the connector (100), the lower shielding contact portion (324) is deformed and comes into firm contact with the shielding mesh (11).

[0091] The lower connecting surface (325) is formed by extending from the upper side of the lower central surface (321) and bending, and comes into contact with the upper connecting surface (315) when the upper connecting part (310) and the lower connecting part (320) are joined together. This guides the upper connecting part (310) and the lower connecting part (320) to be joined together in the correct position.

[0092] The lower connector coupling part (326) is formed by extending from the upper side of the lower center surface (321) and bending, and is a part that is inserted into and fixed in the lower fixing groove (120).

[0093] More specifically, the lower connector coupling part (326) includes a lower coupling projection (3261) formed protruding from one side. The lower coupling projection (3261) is inserted into the lower catch groove (121) of the lower fixing groove (120), thereby ensuring that the lower connector coupling part (326) is fixed without falling out after being inserted into the lower fixing groove (120).

[0094] Additionally, the lower connector coupling part (326) is formed in a cantilever shape by cutting around the lower coupling projection (3261), and it is preferable to further include a lower coupling arm (3262) on which the lower coupling projection (3261) is formed.

[0095] The lower connecting arm (3262) is cut at the lower connector connecting part (326) and formed into a cantilever shape, and a lower connecting projection (3261) is formed on the lower connecting arm (3262). Accordingly, the lower connecting arm (3262) forms a structure having elasticity.

[0096] The movement of the lower coupling arm (3262) is described in detail as follows. When the lower connector coupling part (326) is inserted into the lower fixing groove (120), the protruding lower coupling projection (3261) comes into contact with the inner surface of the lower fixing groove (120) and is pressed, thereby causing the lower coupling arm (3262) to bend. That is, the lower connector coupling part (326) can be easily inserted. After that, once the lower coupling projection (3261) is inserted into the lower locking groove (121), the lower coupling projection (3261) is no longer pressed, and the lower coupling arm (3262) returns to its original state.

[0097] At this time, it is preferable that the lower connecting protrusion (3261) be formed by bending the lower connecting arm (3262). Through this, the lower connecting protrusion (3261) can form a more elastic structure.

[0098] Additionally, the lower connector coupling part (326) may further include a lower stopper (3263) formed by bending the end of the lower coupling arm (3262) in the direction in which the lower coupling projection (3261) protrudes. The lower stopper (3263) comes into contact with the inner surface of the lower fixing groove (120) when the lower coupling projection (3261) is inserted into the lower locking groove (121). Through this, when the lower connector coupling part (326) is inserted into the lower fixing groove (120), the frictional force is increased, allowing it to be stably fixed.

[0099] In addition, it is preferable that the lower connector coupling part (326) be formed in multiple numbers to correspond to the multiple lower fixing grooves (120).

[0101] Hereinafter, the process of forming a vehicle inlet grounding structure according to an embodiment of the present invention is described.

[0102] As illustrated in the figure, it is preferable that the vehicle inlet grounding structure according to one embodiment of the present invention be formed in the following order.

[0103] First, a connector (100) connected to a wire (10) is prepared. At this time, a portion of the sheath of the wire (10) is cut and peeled off, so that a portion of the shielding mesh (11) is exposed. (Fig. 9(a))

[0104] After that, the upper relay part (310) is brought close to the wire (10) from the upper direction of the wire (10) and connected to the connector (100). At this time, the upper shielding contact part (314) is deformed and presses against the wire (10), and the wire (10) is positioned in the upper wire insertion hole (312). In addition, the lower relay part (320) is brought close to the wire (10) from the lower direction of the wire (10) and connected to the connector (100). At this time, the lower shielding contact part (324) is deformed and presses against the wire (10), and the wire (10) is positioned in the lower wire insertion hole (322). (Fig. 9(b))

[0105] After that, the upper connecting surface (315) and the lower connecting surface (325) come into contact with each other, and the upper relay part (310) and the lower relay part (320) interlock and connect in the correct position. Thus, the upper relay part (310) and the lower relay part (320) are connected to form a relay part (300). (Fig. 9(c))

[0106] After that, the relay unit (300) advances, and the upper ground contact part (313) comes into contact with the ground surface (220) of the vehicle body grounding part (200), and at the same time, the lower ground contact part (323) comes into contact with the ground surface (220) of the vehicle body grounding part (200), and the upper connector coupling part (316) is inserted into the upper fixing groove (110) and fixed, and the lower connector coupling part (326) is inserted into the lower fixing groove (120) and fixed. At this time, the upper shielding contact part (314) and the lower shielding contact part (324) also advance forward and move to the part where the covering has been removed, thereby pressing the shielding mesh (11). Accordingly, as the relay unit (300) is coupled to the connector (100), the vehicle body grounding unit (200) and the shielding mesh (11) are electrically connected and grounded by the relay unit (300). (Fig. 9(d))

[0108] An embodiment of the present invention can be expected to have various effects including the following according to the above configuration. However, the present invention is not required to exhibit all of the following effects.

[0109] First, the relay unit (300) is firmly fixed to the connector (100) and firmly contacts the vehicle body grounding unit (200) and the shielding mesh (11) to improve grounding performance.

[0110] In addition, the shielding mesh (11) can be completely covered, thereby improving shielding performance.

[0111] In addition, it can reduce labor costs, thereby increasing productivity.

[0112] In addition, manufacturing costs can be reduced by decreasing labor hours.

[0113] Although preferred embodiments of the present invention have been described above with reference to the attached drawings, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all technical concepts of the present invention. Therefore, various equivalents and modifications that can replace them at the time of filing this application fall within the scope of protection of the present invention. Explanation of the symbols

[0116] 10 wires 11 shielding net 100 Connector 110 Upper Fixing Groove 120 Lower Fixing Groove 130 guide protrusions 200 Body grounding section 210 Body grounding body 220 Grounding surface 300 Relay Section 310 Upper Relay Section 311 Upper Center Surface 312 Upper wire insertion hole 313 Upper ground contact part 314 Upper shielding contact part 315 Upper coupling surface 316 Upper connector coupling part 320 Lower relay part 321 Lower center surface 322 Lower wire insertion hole 323 Lower ground contact part 324 Lower shielding contact part 325 Lower coupling surface 326 Lower connector coupling part

Claims

Claim 1 A connector (100) to which a wire (10) is connected, the wire comprising a metal wire through which current flows and a shielding mesh (11) that surrounds the metal wire and at least a portion thereof is exposed to the outside; a body grounding part (200) connected to the vehicle body to ground it; and a relay part (300) which is coupled to and fixed to the connector (100), and which has one side covering and pressing the portion of the shielding mesh (11) that is exposed to the outside, and has the other side in contact with the body grounding part (200) to electrically connect the shielding mesh (11) and the body grounding part (200); wherein the relay part (300) includes an upper relay part (310) which has one side in contact with the upper surface of the shielding mesh (11) and the other side in contact with the body grounding part (200); and It is formed symmetrically with the upper relay part (310) and interlocked and joined, A lower relay section (320) having one side in contact with the lower surface of the shielding mesh (11) and the other side in contact with the vehicle body grounding section (200); do, The above upper relay unit (310) is, An upper center surface (311) facing the front of the connector (100); An upper wire insertion hole (312) formed by cutting the lower side of the upper center surface (311) so that a part of the wire (10) is inserted therein; An upper ground contact portion (313) that extends from the upper center surface (311), is bent and formed to contact the vehicle body ground portion (200); An upper shielding contact portion (314) that extends from the upper wire insertion hole (312), is bent and formed to contact the shielding mesh (11); and An upper connector coupling part (316) that is formed by extending from the upper side of the upper center surface (311) and bending, with an upper coupling projection (3161) protruding from one side; Includes, The above lower relay unit (320) is, A lower center surface (321) facing the front of the connector (100); A lower wire insertion hole (322) formed by cutting the upper side of the lower center surface (321) so that a part of the wire (10) is inserted therein; A lower ground contact portion (323) that extends from the lower center surface (321), is bent and formed to contact the vehicle body ground portion (200); A lower shielding contact portion (324) that extends from the lower wire insertion hole (322), is bent and formed to contact the shielding mesh (11); and A lower connector coupling part (326) that is formed by extending from the lower side of the lower center surface (321) and bending, with a lower coupling projection (3261) protruding from one side; Includes, The above connector (100) is, An upper fixing groove (110) formed in a tubular shape with one end open on the upper side of the connector (100) to which the upper connector coupling part (316) is inserted, and which includes an upper locking groove (111) formed through the inner surface to allow the upper coupling projection (3161) to be inserted and fixed in connection; and A lower fixing groove (120) formed in a tubular shape with one end open on the lower side of the connector (100), into which the lower connector coupling part (326) is inserted, and which includes a lower locking groove (121) formed through the inner surface so that the lower coupling projection (3261) is inserted and fixed in connection; Includes A vehicle inlet grounding structure characterized by the following. Claim 2 A connector (100) to which a wire (10) is connected, the wire comprising a metal wire through which current flows and a shielding mesh (11) that surrounds the metal wire and at least a portion thereof is exposed to the outside; a vehicle body grounding part (200) connected to the vehicle body to ground it; and a relay part (300) which is coupled to and fixed to the connector (100), and which has one side covering and pressing the portion of the shielding mesh (11) that is exposed to the outside, and has the other side in contact with the vehicle body grounding part (200) to electrically connect the shielding mesh (11) and the vehicle body grounding part (200); wherein the relay part (300) includes an upper relay part (310) which has one side in contact with the upper surface of the shielding mesh (11) and the other side in contact with the vehicle body grounding part (200); and a lower relay part (320) formed symmetrically with the upper relay part (310) and coupled by interlocking, wherein one side contacts the lower surface of the shielding mesh (11) and the other side contacts the vehicle body grounding part (200); wherein the upper relay part (310) comprises: an upper central surface (311) facing the front surface of the connector (100); an upper wire insertion hole (312) formed by cutting the lower side of the upper central surface (311) so that a part of the wire (10) is inserted; and an upper ground contact part (313) formed by extending from the upper central surface (311) and bending to contact the vehicle body grounding part (200). and an upper shielding contact portion (314) formed by extending from the upper wire insertion hole (312) and bending to contact the shielding mesh (11); and the lower relay portion (320) comprises: a lower central surface (321) facing the front of the connector (100); a lower wire insertion hole (322) formed by cutting the upper side of the lower central surface (321) so that a part of the wire (10) is inserted; a lower grounding contact portion (323) formed by extending from the lower central surface (321) and bending to contact the vehicle body grounding portion (200); and a lower shielding contact portion (324) formed by extending from the lower wire insertion hole (322) and bending to contact the shielding mesh (11). The above connector (100) further includes a plurality of guide protrusions (130) formed by protruding from the side. The plurality of guide protrusions (130) are spaced apart from each other, and the upper ground contact portion (313) and the lower ground contact portion (323) are coupled and inserted between the plurality of guide protrusions (130). Vehicle inlet grounding structure featuring Claim 3 In paragraph 2, the vehicle inlet grounding structure is characterized in that the upper relay part (310) further comprises an upper connector coupling part (316) formed by extending and bending from the upper side of the upper center surface (311) and having an upper coupling projection (3161) protruding from one side, and the lower relay part (320) further comprises a lower connector coupling part (326) formed by extending and bending from the lower side of the lower center surface (321) and having a lower coupling projection (3261) protruding from one side. Claim 4 delete Claim 5 A vehicle inlet grounding structure characterized in that, in any one of claims 1 to 3, the upper relay member (310) further comprises an upper coupling surface (315) formed by extending and bending from the lower side of the upper center surface (311), and the lower relay member (320) further comprises a lower coupling surface (325) formed by extending and bending from the upper side of the lower center surface (321) and contacting each other with the upper coupling surface (315) when the upper relay member (310) and the lower relay member (320) are engaged and coupled. Claim 6 A vehicle inlet grounding structure characterized in that, in any one of claims 1 to 3, when the upper relay part (310) and the lower relay part (320) are joined together, the upper shielding contact part (314) and the lower shielding contact part (324) are joined to form a truncated cone shape. Claim 7 A vehicle inlet grounding structure according to claim 6, characterized in that the upper shielding contact portion (314) and the lower shielding contact portion (324) are cut in a certain pattern and have elasticity. Claim 8 In claim 7, the upper shielding contact portion (314) comprises a plurality of first cut slits (3141) formed by cutting along the direction toward the end of the upper shielding contact portion (314) from the upper wire insertion hole (312); and the lower shielding contact portion (324) comprises a plurality of second cut slits (3241) formed by cutting along the direction toward the end of the lower shielding contact portion (324) from the lower wire insertion hole (322); and the plurality of first cut slits (3141) and the plurality of second cut slits (3241) are spaced apart at a constant interval, characterized by a vehicle inlet grounding structure. Claim 9 delete Claim 10 delete Claim 11 delete Claim 12 A vehicle inlet grounding structure according to claim 1 or 3, wherein the upper connector coupling part (316) further comprises an upper coupling arm (3162) on which the upper coupling protrusion (3161) is formed by cutting the periphery of the upper coupling protrusion (3161) to form a cantilever shape, and the lower connector coupling part (326) further comprises a lower coupling arm (3262) on which the lower coupling protrusion (3261) is formed by cutting the periphery of the lower coupling protrusion (3261) to form a cantilever shape, and wherein the upper coupling protrusion (3161) is formed by bending the upper coupling arm (3162) and the lower coupling protrusion (3261) is formed by bending the lower coupling arm (3262). Claim 13 In claim 12, the upper connector coupling part (316) further comprises an upper stopper (3163) which contacts the inner surface of the upper fixing groove (110) when the upper coupling projection (3161) is inserted into the upper locking groove (111), wherein the end of the upper coupling arm (3162) is formed by bending in the direction in which the upper coupling projection (3161) protrudes; and the lower connector coupling part (326) further comprises a lower stopper (3263) which contacts the inner surface of the lower fixing groove (120) when the lower coupling projection (3261) is inserted into the lower locking groove (121). Claim 14 A vehicle inlet grounding structure characterized in that, in claim 1 or 3, the upper connector coupling part (316), the lower connector coupling part (326), the upper fixing groove (110), and the lower fixing groove (120) are formed in multiple numbers. Claim 15 delete Claim 16 A vehicle inlet grounding structure characterized in that, in any one of claims 1 to 3, the vehicle body grounding portion (200) comprises: a vehicle body grounding body (210) formed in a bar shape, with one end electrically connected to the vehicle body; and a grounding surface (220) formed extending from the other end of the vehicle body grounding body (210), facing the side of the connector (100), and having a width wider than the width of the vehicle body grounding body (210) and in contact with the relay portion (300).

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